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172,097,699 |
{
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O presente texto reune indicacoes para discussao e analise dos fundamentos acerca do pensamento tecnocratico e autoritario implementado na educacao brasileira pelo governo dos militares entre 1964 e 1985, tendo por base as Reformas de ensino, Lei 5.540/68 e 5.692/71 que reformaram respectivamente os niveis de ensino superior e primario e secundario e - contribuir para o debate sobre o pensamento pedagogico brasileiro; para a pesquisa educacional e; reflexao das atuais reformas educacionais em curso no pais. Articula-se a tese de que a politica educacional dos governos militares cuja base foram as reformas de ensino serviram para auxiliar a internacionalizacao da economia mantendo com isso, o pais na periferia do capitalismo mundial. Para compreender os fundamentos do pensamento tecnocratico e autoritario implementado na educacao brasileira, a partir do golpe militar de 1964 – 1985 e responder os objetivos propostos desenvolveu-se um estudo baseado nos procedimentos de: 1) pesquisa bibliografica e, 2) analise documental. Em relacao a pesquisa bibliografica foram reunidos dados que pudessem recompor o quadro contextual das reformas de ensino, lei 5.540/68 e 5.692/71 e em seguida partiu-se para a analise dos documentos procurando “dar voz a documentacao “ e a mesmo tempo “escutar a voz da documentacao”, que no caso em questao foram as leis 5.540/68 e 5.692/71. Sua estruturacao apresenta elementos que compoem a justificativa na qual evidencia – se o problema pesquisado que tematizou os fundamentos do pensamento tecnocratico e autoritario durante o governo dos militares, enfocando as reformas de ensino, lei 5.540/68 e 5.692/71, haja vista que o pais passava por um processo de redirecionamento politico/social no qual os militares a servico dos capitais nacional e internacional, das classes dominantes e seus privilegios, assumiram como atores principais o papel de combate as forcas civis e politicas de esquerda, progressistas e democraticas que atuavam de modo organizado no pais. Deste modo, foi instalado a linha de acao numa perspectiva civil/politico/militar, baseada na tecnocracia e autoritaritarismo em todas as instituicoes sociais, tendo em vista o principio norteador principal da politica – seguranca e desenvolvimento nacional.
|
2022-02-08T16:29:27.545Z
|
52,172,119 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.2217/mmt-2017-0007",
"MAG": "2613533509",
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"license": null,
"status": "GREEN",
"url": "https://europepmc.org/articles/pmc6094660?pdf=render"
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|
prospective data support similar findings: 0 of 53 patients had objective response, 2-year OS rate was 7% and safety data showed 16 patients (30%) with grade 1–2 AEs and 19 patients (36%) with grade 3–4 AEs [25] . Grade 3–4 AEs were diarrhea, colitis and transaminitis. There was one possible treatment-related death in the setting of pancytopenia with subsequent cerebral hemorrhage and respiratory insufficiency. An abstract from a second Phase II study of ipilimumab 10 mg/kg (EudraCT 2010–024415–4) in 32 patients reported 15 patients (47%) with grade 3–4 AEs (abdominal pain, hypophysitis, emesis, diarrhea, asthenia, proctalgia, bone pain, urinary tract infection, hepatotoxicity, multi-organ failure, altered state of consciousness and vascular compression) [26] . Responses were similarly modest, with one partial response and six patients with stable disease at a median follow-up of 5.5 months.
|
2022-06-24T19:07:52.629Z
|
32,510,818 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4236/OJRD.2016.61001",
"MAG": "2287564944",
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},
"license": null,
"status": null,
"url": null
}
|
Cavernous lymphangioma of the chest wall is a very rare disease entity, and only a few cases have
ever been documented in the literature. Cases of recurrent cavernous lymphangioma after surgical
excision of a cystic lymphangioma on the same side of the chest wall are quite uncommon. We
report a case of a 10-year-old girl, with a giant cavernous lymphangioma of the left lateral chest
wall extending into the axilla, who had undergone surgical excision of a cystic lymphangioma 9
years earlier.
|
2022-02-12T10:57:10.712Z
|
213,891,710 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1061/(asce)is.1943-555x.0000519",
"MAG": "2996848963",
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"license": null,
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"url": null
}
|
AbstractDuring the development of a suite of computer-aided decision support tools for the restoration of interdependent infrastructures impacted by an extreme natural hazard event, it became appar...
|
2022-08-20T22:09:56.611Z
|
98,336,723 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1021/MA034108L",
"MAG": "2079559954",
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|
Radially linked star-block-linear polystyrenes, star-shaped polymers with star-shaped branching at the ends of each arm, were synthesized by the convergent living anionic polymerization method. These novel structurally modified polymers were synthesized by sequential addition of a specific coupling agent, 4-(chlorodimethylsilyl)styrene (CDMSS), styrene, and CDMSS again to a solution of living polystyrene. Through a convergent process, the addition of the coupling agent to the living polystyrene solution resulted in star-shaped polymers with a hyperbranched core containing a single living site, which was used to initiate styrene to obtain living star-block-linear polystyrene diblock polymers. The living diblock was radially linked by the addition of CDMSS through another convergent process. The resulting polymers were purified by fractionation. The success of the synthesis was demonstrated by the molecular weight progression (gel permeation chromatography with multiangle laser light scattering detection). ...
|
2022-09-14T08:43:24.536Z
|
158,293,309 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.12775/BPMH.2018.006",
"MAG": "2892850572",
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|
Der vorliegende Beitrag schildert die Einschrankung der Rechte von Protestanten und anderen nichtkatholischen Christen wahrend der Herrschaftszeit zweier Konige aus der Wettiner-Dynastie, August II. (1697–1733) und August III. (1733–1763). Dieser Prozess begann schon in der zweiten Halfte des 17. Jahrhunderts, vollzog sich aber letztendlich in den Jahren 1717–1736. Im Beitrag werden die Gesetzgebung des polnischen Sejms und andere zeitgenossische Rechtsakte geschildert, mit deren Hilfe beabsichtigt wurde, die Andersglaubigen aus dem offentlichen Leben auszuschliesen. Und dies erfolgte bei einer grundsatzlich passiven Haltung der polnischen Konige. Den Protestanten und Russisch-Orthodoxen kamen die Herrscher der nichtkatholischen europaischen Lander wie Preusen, Russland und Grosbritannien zu Hilfe.
|
2022-09-23T00:32:17.056Z
|
37,884,642 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1097/00005110-199904000-00011",
"MAG": "2034525857",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This study investigates nurses' perceptions of medication errors and appropriate reporting. Results of the study suggest that nurses may not report because of fear of reprisal. Further, there may be a need to allow for nursing judgment in some instances; at those time, the term "medication error" may not be the most appropriate. Implications for nursing administration include further exploration of nonpunitive processes in response to adverse drug events.
|
2022-12-15T06:46:55.042Z
|
119,369,872 |
{
"externalids": {
"ACL": null,
"ArXiv": "cond-mat/0008417",
"DOI": "10.1103/PhysRevB.62.15925",
"MAG": "1819966065",
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},
"license": null,
"status": null,
"url": null
}
|
We study theoretically the ultrafast nonlinear optical response of quantum well excitons in a perpendicular magnetic field. We show that for magnetoexcitons confined to the lowest Landau levels, the third-order four-wave-mixing (FWM) polarization is dominated by the exciton-exciton interaction effects. For repulsive interactions, we identify two regimes in the time evolution of the optical polarization characterized by exponential and power law decay of the FWM signal. We describe these regimes by deriving an analytical solution for the memory kernel of the two-exciton wave function in a strong magnetic field. For strong exciton-exciton interactions, the decay of the FWM signal is governed by an antibound resonance with an interaction-dependent decay rate. For weak interactions, the continuum of exciton-exciton scattering states leads to a long tail of the time-integrated FWM signal for negative time delays, which is described by the product of a power law and a logarithmic factor. By combining this analytic solution with numerical calculations, we study the crossover between the exponential and nonexponential regimes as a function of magnetic field. For attractive exciton-exciton interactions, we show that the time evolution of the FWM signal is dominated by biexcitonic effects.
|
2022-12-15T10:43:53.472Z
|
229,263 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1093/IJE/DYL088",
"MAG": "2150632891",
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},
"license": null,
"status": null,
"url": null
}
|
BACKGROUND
The association of social capital with health and mortality is contentious, and empirical findings are inconsistent. This study tests the association of neighbourhood-level volunteerism with mortality.
METHODS
Cohort study of 1996 New Zealand census respondents aged 25-74 years (4.75 million person years) using multilevel Poisson regression analyses. Neighbourhood (average population 2,034) measures included indices of social capital (volunteering activities for all census respondents) and deprivation.
RESULTS
Adjusting for just age and marital status, the mortality rate ratios for people living in the quintile of neighbourhoods with the lowest compared with highest volunteerism were 1.16 (95% confidence interval 1.08-1.24) and 1.09 (1.01-1.18), for males and females, respectively. Adjusting for potential individual-level and neighbourhood-level socioeconomic confounders reduced the rate ratios to 0.94 (0.88-1.01) and 0.92 (0.85-1.01), respectively. There was no significant association with any cause of death, including suicide [rate ratios 0.89 (0.64-1.22) and 0.57 (0.31-1.05), respectively]. Restricting the analyses to only those census respondents living at their census night address for five or more years, and therefore 'exposed' to that level of volunteerism for a longer period, did not substantially alter findings.
CONCLUSIONS
This study, one of the largest multilevel studies yet, found no statistically significant independent association of a structural measure of neighbourhood social capital with mortality-including suicide. Assuming social features of neighbourhoods are important determinants of health, future research should examine other features (e.g. social fragmentation) and other outcomes (e.g. behaviour).
|
2022-12-19T10:11:42.595Z
|
233,738,154 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.21203/rs.3.rs-84814/v1",
"MAG": "3111511174",
"PubMedCentral": null
},
"license": "CCBY",
"status": "GREEN",
"url": "https://www.researchsquare.com/article/rs-84814/v1.pdf?c=1603410960000"
}
|
Rational synthesis of sub-nanocatalysts with controllable electronic and atomic structures remains a challenge to break the limits of traditional catalysts for superior performance. Here we report the atomic-level precise synthesis of Pt/graphene sub-nanocatalysts (from single atom, dimer, and to cluster) by atomic layer deposition, achieved by a novel high temperature pulsed ozone strategy to controllably pre-create abundant in-plane epoxy groups on graphene as anchoring sites. The specific in-plane epoxy structure endows the deposited Pt species with outstanding uniformity, controllability and stability. Their size-depended electronic and geometric effects have been observed for ammonia borane hydrolysis, revealing a volcano-type dependence of intrinsic activity on their sizes. Their active site structures have been identified based on extensive characterizations, dynamic compensation effect, kinetic isotope experiments and density function theory simulation. The Pt dimers show the highest catalytic activity and good durability than Pt single atoms and nanoparticles, ascribed to the unique C-Pt-Pt-O (C5Pt2O, metal-metal bond dimer) active site structure. Our work provides new insights into the precise tailoring and catalytic mechanism in sub-nanometer level.
|
2022-12-19T14:23:09.072Z
|
226,151,511 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.19083/rgm.v4i2.1125",
"MAG": "3038591637",
"PubMedCentral": null
},
"license": "CCBYNCSA",
"status": "GOLD",
"url": "https://revistas.upc.edu.pe/index.php/rgm/article/download/1125/992"
}
|
Arguments for Liberty es una compilación de ensayos escritos por nueve connotados filósofos académicos, sobre la libertad política, como sistema justo y moral. Se desarrollan ideas en este sentido y prolijamente haciendo uso de argumentos de corte kantiano, objetivista, rawlsiano y moralmente pluralista. Este libro es importante por lo menos por dos razones. La primera es porque la libertad importa. La segunda razón es porque la filosofía también importa, acaso para defender la libertad.
|
2022-02-03T15:29:37.958Z
|
62,705,236 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1177/154193128202601115",
"MAG": "1988454177",
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},
"license": null,
"status": null,
"url": null
}
|
Objectives for the EVAC computer model are to simulate emergency evacuation from aircraft and thus to reduce or replace the practice of conducting live tests with a full passenger load, now required to demonstrate that emergency evacuation from a new airplane configuration meets regulatory criteria. Plans are to develop a model that demonstrates evacuation performance fidelity and credibility to the degree determined to be necessary for acceptance as a valid evacuation “test” method. This is being accomplished by developing a literal step-by-step simulation of the evacuation process. Resulting model performance elements are based on a time-line of evacuation performance events and queuing behavior similarly to task timeline analysis techniques. Features include ability to handle basic variables in the sequence of task events and also to modify performance time according to characteristics that may be individualized (e.g., age, sex, agressiveness) or related to features of the environment or systems (e.g., lights, obstacles, door size, number of slide lanes). Reported are present model features, performance capabilities and level of calibration.
|
2022-07-05T02:00:00.681Z
|
251,545,768 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.55838/1980-3540.ge.2010.99",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://geneticanaescola.emnuvens.com.br/revista/article/download/99/89"
}
|
A atividade proposta é uma simulação da busca de um gene candidato ou responsável por determinado fenótipo, utilizando uma análise combinada de heredograma e de marcadores moleculares. Como exemplos, utilizaremos nessa atividade as doenças denominadas fenilcetonúria e a alcaptonúria.
|
2022-08-24T21:52:51.941Z
|
235,669,191 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2139/ssrn.3868341",
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}
|
I study the effect of a threat of hedge fund activism on corporate investment. I find that managers are less likely to undertake acquisitions when subject to a higher threat of activism. They decrease the number of risky, value-creating acquisitions undertaken by the firm. I present evidence that the results can be explained by the manager's exposure to firm-level risk. Hedge fund activists often pursue a restructuring of the target firms, which may increase the riskiness of the firm's assets and reduce the manager's incentives to take on new risky projects. Overall, my results demonstrate that activists can create ex-ante inefficiencies by altering the incentives-risk sharing tradeoff of the manager's compensation contract.
|
2022-11-04T19:22:11.897Z
|
100,702,316 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.1021/EF5019274",
"MAG": "2321538051",
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},
"license": null,
"status": null,
"url": null
}
|
This study evaluates the feasibility of industrial ethanol production from 10 agroindustrial residues in Colombia by considering production yields, profitability, and environmental impacts. For this analysis, sugar cane bagasse, banana stem, corncob, rice husk, sawdust, woodbark, mango wastes, palm residues, pineapple peel, and plantain peel were considered as feedstocks. For each residue, a techno-economic and environmental assessment was carried out using relevant data generated from process modeling. To do this, diluted acid pretreatment and enzymatic hydrolysis (using cellulases) of the lignocellulosic materials were selected as technologies. Besides, Saccharomyces cerevisiae and Pichia stipitis were selected as fermenting microorganisms under normal conditions. The production obtained from process modeling were compared with experimental ones from other authors. Yields between 0.009 and 0.264 kg of ethanol per kg of residue and production costs about $0.65 per liter of ethanol were obtained. Addition...
|
2022-12-11T10:50:47.824Z
|
2,807,876 |
{
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"DOI": "10.1158/0008-5472.CAN-09-1778",
"MAG": "2168634761",
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"license": null,
"status": null,
"url": null
}
|
Glioblastoma multiforme (GBM) is the most common and lethal primary human brain tumor. GBMs are characterized by a variety of genetic alterations, among which oncogenic mutations of epidermal growth factor receptor (EGFRvIII) is most common. GBMs harboring EGFRvIII have increased proliferation and invasive characteristics versus those expressing wild-type (wt) EGFR. To identify the molecular basis of this increased tumorgenic phenotype, we used iTRAQ-labeling differential proteomic analysis. Among several differentially expressed proteins, we selected CRMP1, a protein implicated in cellular invasion that was markedly decreased in GBMs expressing EGFRvIII, for further study. The differential expression of CRMP1 was confirmed in a panel of human GBM cell lines and operative specimens that express wtEGFR or mutant EGFRvIII by quantitative real-time PCR, Western blot, and immunohistochemical analysis. In human GBM samples, decreased expression of CRMP1 correlated with EGFRvIII positivity. Knockdown of CRMP1 by siRNA resulted in increased invasion of wtEGFR expressing human GBM cells (U87 and U373) to those found in isogenic GBM cells. Exogenous expression of EGFRvIII in these wtEGFR-expressing GBM cells promoted their ability to invade and was accompanied by decreased expression of CRMP1. Rescuing CRMP1 expression decreased invasion of the EGFRvIII-expressing GBM cells by tilting the balance between Rac and Rho. Collectively, these results show that the loss of CRMP1 contribute to the increased invasive phenotype of human GBMs expressing mutant EGFRvIII.
|
2022-12-13T10:52:46.927Z
|
21,729,754 |
{
"externalids": {
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"ArXiv": null,
"DOI": "10.1159/000489807",
"MAG": "2803387064",
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},
"license": "CCBYNCND",
"status": "GOLD",
"url": "https://www.karger.com/Article/Pdf/489807"
}
|
Background: There is growing evidence that the systemic immune-inflammation index (SII), a novel prognostic biomarker based on peripheral lymphocyte, neutrophil, and platelet counts, is associated with poor prognosis for several tumors. However, the prognostic value of SII in patients with hepatocellular carcinoma (HCC) who undergo liver transplantation (LT) remains unclear. The aim of this study was to determine the correlation between SII and prognosis in these patients. Methods: This retrospective study involved 150 patients with HCC who underwent LT within the Hangzhou criteria. The optimal cut-off value was determined by receiver-operating characteristic (ROC) curve analysis to stratify the patients into those with a high SII and those with low SII. The Kaplan-Meier method and the Cox proportional hazards model were used to evaluate the prognostic value of SII. Finally, we calculated the area under the ROC curve to compare the prognostic power of SII, platelet-to-lymphocyte ratio (PLR), neutrophil-to-lymphocyte ratio (NLR), and monocyte-to-lymphocyte ratio (MLR). Results: Patients were divided into high SII (≥ 226) and low SII (< 226) groups. Five-year overall survival (OS) was lower in the high SII group than in the low SII group (56.1% vs. 82.4%, p = 0.002). SII ≥ 226 × 109/L, maximum tumor size> 5 cm, microvascular invasion, and poor differentiation were independent prognostic factors for OS. However, SII did not predict 5-year recurrence-free survival (high vs. low SII: 64.1% vs. 78.4%, p = 0.073). The area under the ROC curve was greater for SII than for PLR, NLR, and MLR. Conclusions: Preoperative SII may be a powerful prognostic biomarker in patients with HCC who undergo LT within the Hangzhou criteria. SII is superior to PLR, NLR, and MLR for prediction of OS in these patients.
|
2022-12-19T06:19:37.813Z
|
251,517,958 |
{
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"DOI": "10.1136/jnnp-2022-abn2.48",
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"url": null
}
|
A 50 year old Afro-Caribbean gentleman with a background of Ro52 and MDA5 antibody positive anti- synthetase syndrome on prednisolone and mycophenolate mofetil presented with a tight band like pain around his thorax and abdominal pain. Examination identified severe dysaesthesia with a T6 spinal level, as well as lower limb and truncal weakness. MRI showed an expansile T2 hyperintense lesion from C7 to T8 with patchy enhancement in keeping with a NMOSD. He had no optic nerve involvement, confirmed by OCT. The weakness and dysaesthesia responded rapidly to high dose methylprednisolone however he developed constipation, recurrent neuropathic pain and tonic spasms. Serum AQP4 antibodies were present. At presentation serum CK was also raised. Up to 25% of patients with NMOSD have co-existing autoimmunity. However, there are very few reports of anti-synthetase syndrome and NMOSD. Ro-antibodies are well documented in studies on Sjögren’s disease and transverse myelitis. Patients with autoimmune connective tissue diseases who develop neurological symptoms should be investigated for neurological autoantibodies too as they are at risk of multiple autoimmune disorders. Furthermore, neurologists should be observant to other systems when presented with a patient with NMOSD as they may have other diseases which are currently asymptomatic or minimally symptomatic.
|
2022-09-21T13:17:26.882Z
|
18,019,016 |
{
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"DOI": "10.1371/journal.pone.0093070",
"MAG": "2000052578",
"PubMedCentral": "3963973"
},
"license": "CCBY",
"status": "GOLD",
"url": "https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0093070&type=printable"
}
|
Escalation with overdose control (EWOC) is a Bayesian adaptive phase I clinical trial design that produces consistent sequences of doses while controlling the probability that patients are overdosed. However, this design does not take explicitly into account the time it takes for a patient to exhibit dose limiting toxicity (DLT) since the occurrence of DLT is ascertained within a predetermined window of time. Models to estimate the Maximum Tolerated Dose (MTD) that use the exact time when the DLT occurs are expected to be more precise than those where the variable of interest is categorized as presence or absence of DLT, given that information is lost in the process of categorization of the variable. We develop a class of parametric models for time to toxicity data in order to estimate the MTD efficiently, and present extensive simulations showing that the method has good design operating characteristics relative to the original EWOC and a version of time to event EWOC (TITE-EWOC) which allocates weights to account for the time it takes for a patient to exhibit DLT. The methodology is exemplified by a cancer phase I clinical trial we designed in order to estimate the MTD of Veliparib (ABT-888) in combination with fixed doses of gemcitabine and intensity modulated radiation therapy in patients with locally advanced, un-resectable pancreatic cancer.
|
2022-12-21T03:15:23.608Z
|
170,536,992 |
{
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"DOI": "10.2143/QL.90.4.2045790",
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"url": null
}
|
Un des points significatifs de Vatican II est son insistance sur le statut des fideles laics qui inclut une participation active dans la vie de foi. Le concile traite d'une participation active des fideles dans les celebrations liturgiques sur la base d'un sacerdoce commun des fideles qui est confere par le bapteme et par lequel tout croyant participe aux ministeres sacerdotaux, royaux et prophetiques du Christ. A cet effet cet article developpe une reflexion ecclesiologique critique sur l'enseignement de Vatican II concernant la participation active. Il presente l'application de la participation active des fideles comme une contribution a la vie ecclesiale. L'a. revele celle-ci comme une pratique antique de l'Eglise. Se fixant particulierement sur l'Eglise comme 'peuple de Dieu', il etablit combien l'idee de participation n'est pas tant passive mais surtout active. Cette reflexion ecclesiologique de l'Eglise comme 'peuple de Dieu' et son importance pour une participation active font comprendre que la vision de Vatican II sur la participation active est capitale pour le developpement du Corps du Christ (l'Eglise). Cette vision comporte une reflexion critique, plus particulierement dans les domaines ou la fixation des enseignements de Vatican parait difficile.
|
2022-02-08T17:16:46.725Z
|
163,578,266 |
{
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"DOI": "10.1017/S0003598X00056064",
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|
enquiry, but none the less has a meretricious attraction for those who treat jargon as a substitute for thought. I fear that even Hodder’s apologia for his own brand of symbolist ‘structuration’, which steers well clear of the wilder shores of ‘high’ structuralism, goes far beyond what the inherent limitations of inference in archaeology will allow. Archaeologists have long been guilty, though much to their benefit, of borrowing techniques from other disciplines. Now that we have apparently lost our innocence, do we have to steal theoretical underclothes from other peoples’ washing-lines to cover our shameful nakedness? Sir Edmund Leach prophesied correctly a few years ago that the next ‘-ism’ to be taken up by archaeologists in search of a theory would be structuralism; but nearly 30 years ago Christopher Hawkes and Margaret Smith showed separately, and with irrefutable logic, where the boundaries lie of valid inference from archaeological data. Nothing has happened since to shake their conclusions. A real theory of archaeology, based on the nature and limitations of the evidence, has to recognize that there are many aspects of the past, and particularly of the text-free past, which are absolutely unknowable and always will be, because the evidence is of its nature ambiguous. Why should we be ashamed of having failed to achieve the impossible? R . J. C . A T K I N S O N
|
2022-06-06T09:52:03.287Z
|
208,880,706 |
{
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"DOI": "10.1109/VLSI-SoC.2019.8920355",
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"url": null
}
|
The evolution of integrated circuits has made them more susceptible to the radiation effects, besides increasing the manufacturing process variability. Traditionally, complex gates are adopted to reduce area, delay and power consumption. However, they can introduce challenges related to a robustness that might be avoided with more regular and basic cells. This extended abstract presents my current research works. Firstly, the different works performed in my research are described. Then, a short version methodology and the main results are presented.
|
2022-06-24T16:37:42.167Z
|
233,266,217 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.22052/MIR.2020.212903.1187",
"MAG": "3139255591",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The Gireh is an Islamic geometric pattern which is governed by mathematical rules and conforms to Euclidean surfaces with fixed densities. Since dome-shaped surfaces do not have a fixed density, it is difficult to make use of a structure like Gireh on these surfaces. There are, however, multiple domes which have been covered using Gireh, which can certainly be thought of a remarkable achievement by past architects. The aim of this paper is to discover and classify the strategies employed to spread the Gireh over dome surfaces found in Iran. The result of this research can provide new insights into how Iranian architects of the past were able to extend the use of the Gireh from flat surfaces to dome-shaped elements. The result of this paper reveal that the projection of Gireh on dome surface is based on the following six strategies: 1- Spherical solids, 2- radial gore segments, 3- articulation, 4- changing Gireh without articulating, 5- changing the number of Points in the Gireh based on numerical sequences, and 6- hybrid. Except for the first method, all of the other strategies have been discovered in this study. The radial gore segments strategy is different from the previously-developed methods.
|
2022-09-08T21:45:00.885Z
|
170,953,979 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.21714/1984-6975FACES2009V8N2ART145",
"MAG": "1543967680",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
O proposito deste artigo foi analisar a influencia do envolvimento e da atitude dos clientes sobre o comportamento de boca a boca. Para o referencial empirico, foram selecionados os consumidores de produtos das categorias light/diet, escolhidos devido a tendencia de valorizacao do consumo de produtos associados a um estilo de vida mais saudavel, que estes representam. A partir de uma revisao teorica sobre cada um dos tres temas, foram definidos dois modelos estruturais a serem avaliados. Para o teste desses modelos, foram levantados dados por meio de questionario junto a 190 consumidores. Na analise, foi usada a tecnica Modelagem de Equacoes Estruturais, e, como resultados, verificou-se que duas das tres dimensoes de envolvimento, familiaridade e importância (a dimensao compromisso nao pode ser validada estatisticamente), influenciam positivamente a atitude do cliente frente aos produtos analisados. Tambem foi detectado que a atitude influencia positivamente tanto a favorabilidade quanto a intensidade das acoes de boca a boca, alem de influenciar positivamente intencoes futuras de consumo.
|
2022-09-11T02:37:15.339Z
|
116,124,527 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1590/S0080-62342009000300007",
"MAG": "1971118996",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Usando como tema a Escala de Coma de Glasgow (ECGl), este estudo objetivou analisar e verificar a retencao do conhecimento frente as estrategias de ensino-aprendizagem e autoaprendizado oferecidas, e verificar o grau de conhecimento adquirido neste processo e a possivel associacao entre ser ou nao aluno que trabalha na enfermagem. Estudo descritivo de abordagem quantitativa. Participaram 62 alunos regularmente matriculados no primeiro semestre do 4o ano de enfermagem. As estrategias de ensino-aprendizagem utilizadas foram: aula expositiva com diapositivos e videoteipe e texto-base. Dos participantes, 41,9% eram trabalhadores na enfermagem; 61,3% informaram ter cuidado de pacientes com alteracao do nivel de consciencia, com predominio no grupo em que trabalha. Houve incremento estatisticamente significante no percentual de acerto apos a aula expositiva e o videoteipe, nao havendo alteracao no resultado apos o autoaprendizado. Nao houve diferenca no grau de conhecimento adquirido entre os grupos.
|
2022-11-11T08:18:40.566Z
|
143,174,258 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1068/a32100",
"MAG": "1967857849",
"PubMedCentral": null
},
"license": null,
"status": "CLOSED",
"url": null
}
|
This paper is concerned with recent changes in the way capital–labour relations are governed and regulated in German small and medium-sized enterprises. Drawing from institutionalist and regulationist approaches a geographical perspective is adopted which links processes across different sociospatial scales and stresses the importance of relative mobility differences in asymmetric power relations. By considering 28 individual case studies of firms in the Ruhr Area of Germany, it is argued: first, that as stakeholders in the firms respond to a changing environment and to increasing uncertainty, capital–labour relations in Germany are being downscaled and decentralised, profoundly changing the traditional power geometry between capital and labour; second, that the regulatory landscape is being ‘reworked’ in terms favourable to capital during a period in which the latter is in the ascendancy in the labour market; and, third, that there is a peculiar spatial dimension to the rearticulation of power relations and core institutions of the German model. As solidarity and trust appear to be increasingly produced and reproduced at the firm level in the emerging regulatory configuration, the scale of labour regulation is being recast.
|
2022-12-16T08:14:28.859Z
|
162,915,495 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3917/REOF.091.0085",
"MAG": "2256805368",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Les flux de commerce mondial ont connu une acceleration rapide entre l'automne 2003 et l'ete 2004 (tableau 1). Les importations mondiales etaient en hausse de 6,3 % en 2003 en volume et devraient l'etre de plus de 11 % en 2004. Ainsi les flux de commerce renoueraient-ils cette annee pour la premiere fois depuis 2000 avec une croissance a deux chiffres (graphique 1). 2004 verrait la plus forte croissance du PIB mondial depuis 30 ans, mais l'augmentation des echanges commerciaux n'atteindrait pas le point haut de l'annee 2000 lorsque le commerce etait porte par les echanges de biens de nouvelles technologies (+ 13,5 %) (...).
|
2022-12-30T00:29:59.356Z
|
89,746,782 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1126/SCIENCE.359.6373.285-E",
"MAG": "2783588832",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Vaccines
Interferon (IFN) expression is a mammal's first response to viral infection. Many viruses have thus evolved mechanisms to evade IFN. Du et al. developed a method to systematically ablate IFN evasion genes from live, attenuated influenza virus (see the Perspective by Teijaro and Burton). A
|
2022-02-10T19:28:11.882Z
|
56,505,210 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.14429/DJLIT.1.11",
"MAG": "195453772",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The Third Meeting of Officers-in-Charge of Libraries and Technical Information Centres of DRDO Labs/Estts was held in DESIDOC on 5-6 November 1981 to take stock of the progress made.in the implementation of the recommendations made at the earlier to discuss further steps to be taken for providing better services to the scientists of DRDO. The Meeting was inaugurated by Prof M Krishnamurthi, CC RD Dr I J Kumar, Director SAG; and Capt J J Baxi, Director WESO also attended the inaugural session. The Meeting covered the following four technical sessions : (a) Resource sharing in DROO Libraries/TICs (b) Augmentation of information services and manpower aspects (c) Admin procedures for Libraries/TICs (d) Information network for DRDO.
|
2022-02-11T19:13:59.514Z
|
164,979,564 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2373/1864-810X.01-03-06",
"MAG": "2744233736",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Die Bonner Klimakonferenz ist im August 2001 weitgehend Positionen der USA gefolgt, obwohl sie an den Verhandlungen nicht aktiv teilgenommen haben. Ihr Wunsch, Speichermedien fur Kohlenstoff (Senken) wie Walder und landwirtschaftliche Boden anzurechnen, hat zwar die ursprunglichen Reduktionsziele des Kyoto-Protokolls relativiert. Gleichzeitig wurden aber die von den USA favorisierten okonomischen Instrumente des vorsorgenden Klimaschutzes ausgebaut. Die klimarelevanten Emissionen konnen damit effizienter verringert werden. Uberdies werden, wie von den USA vorgeschlagen, die Entwicklungslander starker als bisher in die klimapolitische Programmatik einbezogen. Diese neuen Akzente entsprechen der klimapolitischen Zielsetzung, die weltweiten Emissionstrends umzukehren. Denn der Ausstos von Treibhausgasen nimmt weiter zu. Derzeit geht der Lowenanteil zwar immer noch auf das Konto der Industrielander. Doch Langfrist-Prognosen vermuten, dass die Entwicklungslander in zwei Jahrzehnten fur die Halfte der weltweiten Kohlendioxid-Emissionen verantwortlich zeichnen werden. Deutschland gehort zu den wenigen Industrielandern, die in den 90er-Jahren den Ausstos von Treibhausgasen reduziert haben. Ob sich diese Vorleistung auszahlt, hangt von der Disziplin der ubrigen EU-Partner ab.
|
2022-06-21T08:51:08.198Z
|
168,264,848 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.14257/IJUNESST.2015.8.9.30",
"MAG": "2557685300",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In this study the researcher uses firm-level information to perform a supply-side analysis of factors that determine audit revenues of accounting firms. In particular, the researcher considers how accounting firm ownership, firm status, accumulated human capital, the mix of audit and non-audit services provided by a firm, and the entrance of new firms to an accounting service market affecting audit revenues in a competitive industry setting. This research was conducted using data from the Korean accounting service market where recent regulatory intervention changed the market structure and new rules requiring public disclosure of financial statements by all accounting firms were instituted. The researcher documented that audit revenues decreased with the dispersion of firm ownership among professionals, increased with the level of accumulated human capital, were higher for established big firms with big N affiliation relative to both established local firms without Big N affiliation and new firms formed in the market restructuring. The researcher also found that audit revenues were lower for firms that sold more taxation services and management advisory services and that audit revenues declined in the period after the market restructuring first occurred.
|
2022-09-06T19:46:32.053Z
|
16,528,370 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/ICECS.2014.7050012",
"MAG": "2017347554",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In this paper a test method for capacitive Micro-Electro-Mechanical Systems (MEMS) is presented. The proposed method utilizes the principle of resonant circuits to detect structural defects of capacitive MEMS devices. It is shown that a small variation of MEMS capacitance due to a defect alters the resonance frequency considerably. It is also shown that the variation of the output amplitude can be observed for fault detection if an inductor with a high quality factor is employed in the test circuit. Simulation results using an implemented MEMS comb-drive indicate that the proposed method can detect common faults such as missing, broken and short fingers.
|
2022-09-08T09:51:08.596Z
|
24,116,388 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2307/3576671",
"MAG": "2516561563",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
It has been suggested that fibrosis which develops after irradiation is caused by increases in vascular permeability. Plasma proteins leak into irradiated tissue where fibrinogen may be converted into fibrin which is gradually replaced by fibrous tissue. Vascular and fibrotic changes in mouse lung were investigated after X irradiation of the right hemithorax. Blood volume and accumulation of extravascular proteins were measured using indium (111In)-labeled red cells, iodinated (131I) albumin, and iodinated (125I) fibrinogen. Tracers were injected 1-47 weeks after irradiation and lungs were excised 24 or 96 hr later to determine radioactivity. The amount of collagen was estimated by measuring the hydroxyproline content. During the first few months after X rays, lung blood volume decreased to a plateau which depended on radiation dose (10-25 Gy). Small increases in extravascular albumin and fibrinogen occurred at 1-12 weeks after 10-25 Gy. Subsequently, protein returned to normal after 10 Gy, remained elevated after 15 Gy, and increased after 20 and 25 Gy. Hydroxyproline per gram of dry irradiated lung was increased at 18 weeks after 15-25 Gy. Subsequently it showed little change although both total hydroxyproline content and dry weight decreased after 20 and 25 Gy. Support for the hypothesis was that hydroxyproline per gram only increased after X-ray doses which caused marked extravasation of protein. There was no evidence, however, for deposition of 125I-fibrin or for a gradual increase in fibrosis corresponding to the prolonged excess of extravascular protein.
|
2022-09-14T04:53:46.193Z
|
53,064,105 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/IEMBS.2002.1053063",
"MAG": "2144065824",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This paper presents the design and development of a portable electrocardiograph to allow the on-line remote monitoring and real-time cardiac diseases diagnostics of patients from the specialist. This prototype has been satisfactory implemented finding a good balance between optimal signal processing and power consumption using a GPRS/GSM modem and a SMT low voltage microprocessor board.
|
2022-08-20T13:00:36.484Z
|
72,231,311 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/(SICI)1098-2299(199703)40:3<217::AID-DDR1>3.0.CO;2-N",
"MAG": "2043942633",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
We examined the antithrombotic effect of KBT‐3022, a novel antiplatelet agent, on photochemically induced arterial thrombosis in the guinea‐pig saphenous artery, and compared its effect with that of aspirin and that of ticlopidine. Pretreatment with KBT‐3022 [0.1 mg (0.2 μmole), 0.3 mg (0.7 μmole), 1 mg (2.2 μmole) and 3 mg (6.7 μmole)/kg, p.o.] 3 h prior to thrombosis induction prolonged the time required to achieve the thrombotic occlusion and inhibited the collagen (low concentration, 0.2 μg/ml; high concentration, 1 μg/ml)‐induced platelet aggregation in whole blood ex vivo, each effect being concentration‐dependent. The effects were tested of ticlopidine [30 mg (99.9 μmole), 100 mg (333.1 μmole) and 300 mg (999.2 μmole)/kg, p.o.] and aspirin [10 mg (55.5 μmole), 30 mg (166.5 μmole) and 100 mg (555.1 μmole)/kg, p.o.]. Both drugs prolonged the time to occlusion (but only at their highest concentration), and also inhibited the collagen (low concentration)‐ induced platelet aggregation in whole blood ex vivo. Aspirin [100 mg (555.1 μmole)/kg, p.o.], but not ticlopidine (at any concentration), inhibited the collagen (high concentration)‐induced platelet aggregation. A good correlation was found between the antithrombotic and antiplatelet‐aggregating effects of both KBT‐3022 and aspirin, but not of ticlopidine. The antithrombotic potency of KBT‐3022 was 300 times that of aspirin and 1000 times that of ticlopidine. These observations suggest that KBT‐3022 may be clinically effective against platelet‐rich thrombosis. Drug Dev. Res. 40:217–222, 1997. © 1997 Wiley‐Liss, Inc.
|
2022-01-27T09:16:33.282Z
|
122,536,581 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1177/014233128901100202",
"MAG": "2070063287",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This paper presents an efficient algorithm as part of a programme of research in automatic shape inspection of quality crystal glasses. The shape of these glasses can vary since they are usually hand made and is important because they are often sold in matching sets. Shape analysis concerns the match of the outline of glass to a reference (or master) shape. An algorithm was developed to provide the offset by which the current outline needs to be translated and the factor by which it needs to be scaled, in order to register the outlines to provide the best least-squares match between the current outline and the master shape. Results are included which demonstrate the accuracy of the algorithm both in a simulated environment and when applied to real pictures. The difference data from the best match appears inadequate to grade glasses of the same type but can be used to sort different glasses reliably. An efficient algorithm has therefore been developed to provide the best starting point from which shape comparison can ensue, and research is in progress to capitalise on this technique.
|
2022-01-27T02:15:18.395Z
|
5,571,648 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.37757/mr2011v13.n2.11",
"MAG": "3024346920",
"PubMedCentral": null
},
"license": "CCBY",
"status": "HYBRID",
"url": "http://mediccreview.org/wp-content/uploads/2018/03/mr_197.pdf"
}
|
OBJECTIVE
Determine point prevalence of febrile syndromes and compare with prevalence reported by habitual clinical and seroepidemiologic dengue surveillance system in Havana City.
METHODS
In October 2007, a descriptive, cross-sectional study was carried out in a representative sample, calculating prevalences of febrile syndromes and undifferentiated febrile syndromes. Chi-square analysis was used for rate comparisons.
RESULTS
Point prevalences of febrile syndromes and undifferentiated febrile syndromes were 352.6 and 144.2 times greater, respectively, than those reported by the habitual clinical and seroepidemiologic dengue surveillance system; these differences were statistically significant (p < 0.001).
CONCLUSIONS
Point prevalence of febrile syndromes was far greater than prevalence reported by the habitual clinical and seroepidemiologic dengue surveillance system, an indication of underreporting.
|
2022-02-13T10:44:32.168Z
|
15,798,411 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/YAC.2016.7804904",
"MAG": "2579247966",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Cellular automata (CA) provide an excellent method for modeling military complex systems. This paper discussed the principles, methods, characteristics, and applicability of CA and focus on the applications of cellular automata in military complex systems. Two simulation experiments are given to demonstrate the effectiveness of CA in simulating combat and pollution spread caused by weapons of mass destruction. The simulation results also revealed the performance metrics of CA in analyzing military complex systems.
|
2022-03-04T02:34:25.472Z
|
197,607,414 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1088/1757-899X/536/1/012117",
"MAG": "2949271669",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This study aims to determine the effect of the composition of the material & size of clay and zeolite which has been active as the formation of ceramic membranes against the values of TDS, Turbidity, Fe & Mn, pH and Flux. Then this study determines the optimum results of water treatment membranes from these variations. This study uses a treatment method on membrane size and analyses river water samples. Data analysis used a Complete Randomized Block Design (RAKL) and focused on a simple water filtration process. Variations in the size of raw materials of natural zeolite 50/60, 60/80 and 80/100 mesh which have been activated with Sulphate Acid Concentration of 1 N. Water samples originated from the Krueng Pasee river in North Aceh. Total membrane weight of 700 grams. Variations in this study clay mass: natural zeolite 90%: 10%, 80%: 20%, 70%: 30%, 60%: 40%, & 50%: 50%. The results for pH parameters with membrane filtration obtained pH in accordance with the standard qualifications of drinking water group A, after filtering has increased. For the TDS, Turbidity, Fe & Mn parameters, the analyzed concentration decreases. The best comparison is 50% TL: 50% ZA & size 50/60 mesh for the flux test.
|
2022-07-31T09:21:28.809Z
|
221,987,382 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2135/CROPSCI1994.0011183X003400050063X",
"MAG": "2030717272",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
TEM-SVl kleingrass (Panicum coloratura. L.) germplasm (Reg. no. GP-67, P1 573097) was developed at the Grassland, Soil, and Water Research Laboratory, Temple, TX, and released by the USDA-ARS on 2 Sept. 1993. TEM-SVl is the first kleingrass germplasm specifically selected for rapid seedling growth and will be useful for cultivar development and the study of genetic and physiological mechanisms contributing to early seedling development in warm-season, perennial grasses. Because of the high temperatures required for germination and growth, kleingrass is planted when conditions can be hostile to young seedlings. Abrupt changes in weather patterns can subject newly emerged seedlings to drought and wind erosion, and stands often fail to establish. Seedlings that grow and develop rapidly in the first few days or weeks after emergence may be more tolerant of adverse environmental conditions and, consequently, may have a greater chance of survival. Although selection for larger seed improved seedling growth rate and resulted in the cultivar Verde, selection for increased seedling growth rate in kleingrass has not been attempted. TEM-SVl was derived through three cycles of recurrent selection for increased seedling shoot growth using Selection75 as the initial germplasm source. For each cycle, 1000 seedlings were grown in individual small pots in a controlled environment chamber. At 14 d after emergence (DAE) the roots were removed from each seedling and the shoots weighed. The 50 seedlings with the greatest shoot mass were saved, and placed in water to regenerate roots. Seedlings were then vegetatively propagated, and seed for the next cycle was produced by recombining the selected plants in an isolated, replicated crossing block. Seed produced from recombining the 50 plants selected in Cycle 3 were bulked and designated TEM-SVl. In comparisons with Selection-75, using seed of the same age, seedlings of TEM-SVl had a faster growth rate and accumulated significantly more forage dry matter in both controlled environment and field tests (87% more at 14 DAE in a growth chamber and 33 and 16% more at 16 and 30 DAE in the field, respectively). Although TEM-SVl was selected for greater shoot growth, there was a concomitant and significant increase in root growth rate. In two experiments, the length of the longest adventitious root in TEM-SVl was 14 and 19% greater than Selection-75 at 11 and 14 DAE, respectively. In the same experiments, the number of adventitious roots for TEM-SVl was significantly greater than for Selection-75 at 14 DAE. Average seed mass of TEM-SVl is 0.93 mg seed", 11% greater than Selection-75; however, seed starch content (energy reserves) of TEM-SVl was =21% greater than Selection-75. Adult plants of TEM-SVl are morphologically indistinguishable from Selection-75, and dry matter yield of established plants does not differ significantly from Selection-75. Seed of TEM-SVl will be maintained at the USD A Grassland, Soil, and Water Research Laboratory at Temple, TX. Upon request, small quantities will be provided to breeders and geneticists. It is requested that appropriate recognition of source be given when TEM-SVl contributes to the development of a new germplasm, cultivar, or hybrid.
|
2022-09-04T19:03:17.466Z
|
97,191,463 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1051/JP2:1997205",
"MAG": "2331333419",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Nous observons par diffusion de neutrons aux petits angles la structure de chaines de polystyrene en solution semi-diluee confinees dans un milieu poreux modele, le Vycor. La taille des chaines en solution a l'etat libre est toujours superieure au diametre des pores, 70 A. L'utilisation d'un melange adequat de solvants et de polymeres hydrogenes et deuteres nous permet de mesurer directement le facteur de forme d'une seule chaine au milieu des autres. La penetration des chaines dans le milieu poreux est presque totale pour la concentration (Φ = 20%) et la gamme de poids moleculaire (35 000 < M w < 800 000) utilisees. Le rayon de gyration des chaines confinees est toujours inferieur au rayon de gyration des chaines libres dans la solution equivalente. Nos mesures sont en accord avec les predictions theoriques etablies par Daoud et de Gennes pour des chaines confinees dans un pore cylindrique quand les chaines sont enchevetrees et comprimees transversalement mais restent ideales a grande echelle dans la direction du cylindre a cause de l'ecrantage du volume exclus (regime dit de cigares semi-dilues). Les valeurs des coefficients de partage des chaines entre le milieu poreux et la solution libre ainsi que le comportement asymptotique des facteurs de structure montrent que le polystyrene s'adsorbe sur la surface nue du Vycor. Nous montrons que la silanisation du Vycor supprime cette adsorption.
|
2022-10-25T09:15:29.403Z
|
26,073,720 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/(SICI)1521-4141(199901)29:01<119::AID-IMMU119>3.0.CO;2-O",
"MAG": "2038909422",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The current studies were carried out to examine the basis for the differences in the antigenic peptides generated from exogenous and endogenous forms of hen egg white lysozyme (HEL). The role of different intracellular compartments in the generation and binding of HEL peptides derived from two endogenous forms of HEL, either secreted (sHEL) or retained in the endoplasmic reticulum (ER, KDELHEL), presented by MHC class II molecules was examined and compared to exogenous HEL. Initially it was found that antigen‐presenting cells bearing both intracellular forms of HEL generated and presented a number of IAk‐restricted HEL epitopes to T cell hybridomas, although s HEL was processed more efficiently than KDELHEL. There were differences, however, for some determinants between endogeneous and exogenous HEL. At equivalent antigen‐presenting efficiencies, endogenous HEL‐bearing cells displayed a lower surface density of IAk‐bound HEL‐52‐61‐related peptides than cells pulsed with exogenous HEL, as detected by a specific monoclonal antibody. Neither endogenous HEL degradation nor peptide binding to MHC class II molecules occurred in the ER. Processing of sHEL and KDELHEL appears to take place either in a post‐trans‐Golgi network acidic compartment or in the cytosol, whereas peptide binding to MHC class II molecules occurs in endocytic compartments . Furthermore, the peptides generated were derived from an endogenous source rather than from secreted and re‐endocytosed HEL. Thus, processing of endogenous HEL is from a different pool than exogenous HEL and occurs in different compartments.
|
2022-09-13T21:14:56.448Z
|
68,758,121 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3929/ETHZ-A-005910595",
"MAG": "818879217",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Cardiovascular diseases represent the leading cause of death in developed countries. In the presence of atherosclerosis, plaques develop by the accumulation of lipid or calcified deposits in the vessel walls. Coronary plaques may rupture and lead to acute coronary syndromes. Therefore, early detection and quantification of plaques is of high interest. These days, computed tomography (CT) has emerged as a robust and accurate modality for the assessment of coronary arteries and the detection and characterization of coronary plaques. For the assessment of atherosclerosis, a reader – supported by software tools – searches the acquired data for characteristic anomalies. The decision for the presence of plaques is then mainly based upon the reader’s experience. Once found, several scores exist for a detailed analysis. However, this manual assessment induces errors due to the absence of clear decision criteria. As a consequence, the decisions between different readers vary. Furthermore, the CT intensities even change between examinations such that these additional variabilities also effect measurements. This thesis aims in reducing these aforementioned variabilities by presenting automatic and semi-automatic algorithms or tools for an improved assessment of atherosclerosis in coronary arteries. The work at hand advances the state-of-the-art with four main contributions. Firstly, a robust method for the volumetric assessment of calcified plaques in non-enhanced CT data sets is presented that overcomes the variabilities and parameter dependencies of the currently applied method. The second contribution comprehends the development of a framework for the automatic extraction of calcified coronary plaques. For this purpose, new automatic and semiautomatic algorithms for the extraction of anatomical features in CT data sets are introduced. The third contribution is given for the assessment of noncalcified plaques. Dual Energy CT – the image acquisition at two different energy levels – is used to propose an algorithm that enhances the contrast between tissues as compared to a conventional CT examination. The final contribution lies in the research of spatial plaque distribution patterns with frequent itemset mining. Knowledge about these patterns is used to propose a guided review of coronary segments for improving the manual detection of coronary plaques.
|
2022-12-18T08:05:27.221Z
|
128,820,568 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1061/(ASCE)1532-3641(2004)4:3(191)",
"MAG": "2065785789",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The increase of the water table level presently occurring in the city of Milan led to some leakage of groundwater in underground facilities and subway tunnels. These structures, in fact, were completed about 3 decades ago when the water table was deeply located. To locally lower the groundwater, and to eliminate or limit its flow towards the submerged openings, a series of pumping wells was placed in their vicinity. This provision, however, could lead to possible erosion of the fine fraction of granular soil and to consequent settlements of nearby buildings. To investigate this phenomenon a finite-element approach has been developed for the analysis of the erosion and transport of the fine particles of granular soils subjected to a seepage flow. First, the continuity equation governing the problem and its finite-element formulation are discussed. Then, on the basis of the results of erosion tests presented in the literature, a law is derived that accounts for the nonlinear relationship between the total amount of eroded material, for time tending to infinity, and the velocity of seepage. Finally, this law is applied to the solution of 1- and 2-dimensional test examples, and some conclusions are drawn on the limits of the developed numerical model and on its possible improvement.
|
2022-12-29T21:40:59.498Z
|
202,659,165 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1159/000360783",
"MAG": null,
"PubMedCentral": null
},
"license": "CCBYNC",
"status": "GOLD",
"url": "https://www.karger.com/Article/Pdf/360783"
}
|
I. Pragmatics of fiction as communication: Foundations 2. Participation structure in fictional discourse: Authors, scriptwriters, audiences and characters Thomas C. Messerli . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3. The pragmatics of the genres of fiction Janet Giltrow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 4. Fictional characterisation Jonathan Culpeper and Carolina Fernandez-Quintanilla . . . . . . . . . . 93 5. The role of dialogue in fiction Monika Bednarek . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 6. Narrative perspectives on voice in fiction Christian R. Hoffmann . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 7. Pragmatics of style in fiction Beatrix Busse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
|
2022-01-27T03:18:41.842Z
|
242,000,169 |
{
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"ArXiv": null,
"DOI": "10.1108/dlo-07-2019-0155",
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"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Purpose
This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies.
Design/methodology/approach
This briefing is prepared by an independent writer who adds his/her own impartial comments and places the articles in context.
Findings
This article review picks up where its predecessor finished, which shared an understanding that mindfulness was probably a good thing, but the evidence for its beneficial impact in the workplace was rather thinner than one might expect. Like all good sequels, the author seeks to expand on some of the themes explored in the first instalment, and perhaps provide some answers to the mysteries that were introduced. So, here we have what we hope is Godfather II – i.e. better than the original – and not Speed II – i.e. a pale imitation of the original.
Practical implications
This paper provides strategic insights and practical thinking that have influenced some of the world’s leading organizations.
Originality/value
The briefing saves busy executives and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.
|
2022-01-27T02:26:21.203Z
|
123,162,696 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1364/NLGW.2005.WD18",
"MAG": "2089467647",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
We study interaction between out-of-phase nematicons and predict analytically the critical degree of nonlocality that provides enough attraction for them to attract and collide. The results are verified by numerical simulations.
|
2022-02-09T18:48:27.959Z
|
110,281,634 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/BATE.200003510",
"MAG": "2070495586",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Die Emission von Sickerwasser aus Deponien kann bisher in Quantität und Qualität nur am Auslauf von Dränrohren bestimmt werden. Die Einzugsfläche von Dränrohren beträgt dabei z. T. mehr als 12000 qm. Der darüberliegende Abfall ist sehr inhomogen zusammengesetzt, so daß Prognosen zur zeitlichen Entwicklung des Sickerwasservolumens und seiner Qualität nur sehr beschränkt möglich sind. Weiterhin ist die Verifizierung von Wasserhaushaltsmodellen für Deponien mit solch groben Meßstrukturen nicht möglich. In diesem Beitrag wird daher die Entwicklung und Erprobung eines Meßsystems zur kleinräumigen Bestimmung der Sickerwasservolumina und ‐qualitäten in Deponien vorgestellt. Dabei werden sowohl die Entwicklung und die Erprobung im Labor als auch die ersten Erfahrungen von In‐Situ‐Messungen dargestellt. Mit Hilfe statistischer Auswertungen dieser Einzelmessungen können Empfehlungen zur Minimierung der Meßaufhäufigkeit erarbeitet werden sowie zwei‐ und dreidimensionale Wasserhaushaltsmodelle mit In‐Situ‐Meßwerten verifiziert werden.
|
2022-03-27T11:21:12.764Z
|
13,460,214 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1117/12.704886",
"MAG": "2157249497",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This paper is concerned about high resolution reconstruction of projection reconstruction MR imaging from angular under-sampled k-space data. A similar problem has been recently addressed in the framework of compressed sensing theory. Unlike the existing algorithms used in compressed sensing theory, this paper employs the FOCal Underdetermined System Solver(FOCUSS), which was originally designed for EEG and MEG source localization to obtain sparse solution by successively solving quadratic optimization. We show that FOCUSS is very effective for the projection reconstruction MRI, because the medical images are usually sparse in image domain, and the center region of the under-sampled radial k-space data still provides a meaningful low resolution image, which is essential for the convergence of FOCUSS. We applied FOCUSS for projection reconstruction MR imaging using single coil. Extensive experiments confirms that high resolution reconstruction with virtually free of angular aliasing artifacts can be obtained from severely under-sampled k-space data.
|
2022-06-18T19:27:15.243Z
|
46,670,323 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4271/2004-01-3166",
"MAG": "1564593301",
"PubMedCentral": null
},
"license": null,
"status": "GREEN",
"url": "https://ntrs.nasa.gov/api/citations/20050019219/downloads/20050019219.pdf"
}
|
ABSTRACT Unmanned aerial vehicles (UAVs) are currently under development for NASA missions, earth sciences, aeronautics, the military, and commercial applications. The design of an all electric power and propulsion system for small UAVs was the focus of a detailed study. Currently, many of these small vehicles are powered by primary (nonrechargeable) lithium-based batteries. While this type of battery is capable of satisfying some of the mission needs, a secondary (rechargeable) battery power supply system that can provide the same functionality as the current system at the same or lower system mass and volume is desired. A study of commercially available secondary battery cell technologies that could provide the desired performance characteristics was performed. Due to the strict mass limitations and wide operating temperature requirements of small UAVs, the only viable cell chemistries were determined to be lithium-ion liquid electrolyte systems and lithium-ion gel polymer electrolyte systems. Two lithium-ion gel polymer cell designs were selected as candidates and were tested using potential load profiles for UAV applications. Because lithium primary batteries have a higher specific energy and energy density, for the same mass and volume allocation, the secondary batteries resulted in shorter flight times than the primary batteries typically provide. When the batteries were operated at lower ambient temperatures (0 to -20 °C), flight times were even further reduced. Despite the reduced flight times demonstrated, for certain UAV applications, the secondary batteries operated within the acceptable range of flight times at room temperature and above. The results of this testing indicate that a secondary battery power supply system can provide some benefits over the primary battery power supply system. A UAV can be operated for hundreds of flights using a secondary battery power supply system that provides the combined benefits of rechargeability and an inherently safer chemistry.
|
2022-08-20T18:08:41.647Z
|
27,435,631 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.25011/CIM.V33I3.13727",
"MAG": "2117075981",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
BACKGROUND
In vitro, the majority of clinically non-functioning pituitary adenomas (NFPAs) produce gonadotropins or their alpha-subunit; however, in vivo, measurements of alpha-subunit levels may not accurately detect the hypersecretion of the alpha-subunit.
AIM
We wanted to estimate the reference intervals and decision limits for gonadotropin alpha-subunit, LH and FSH levels, and aratio (alpha-subunit/LH+FSH), especially taking into consideration patient gender and menstrual status. Furthermore, we wanted to examine if the diagnostic utility of alpha-subunit hypersecretion was improved when the alpha-ratios, rather than simply the alpha-subunit levels, were measured in patients with NFPAs.
MATERIAL AND METHODS
Reference intervals for gonadotropin alpha-subunit serum levels and alpha-ratios were established in 231 healthy adults. The estimated cut-off limits were applied to 37 patients with NFPAs. Gonadotropin alpha-subunit, LH and FSH levels were measured and alpha-ratios were calculated.
RESULTS
In healthy adults, the cut-offs for alpha-subunit levels were significantly different between men and pre- and postmenopausal women: the cut-offs were 1.10, 0.48 and 3.76 IU/l, respectively. Using these estimated cut-offs, increased alpha-subunit levels were identified in 10 out of 37 (27%) patients with NFPAs. By adding alpha-ratio, in combination with alpha-subunit levels, 23 patients out of 37 (62%) were identified as having elevated alpha-subunit hypersecretion, and 22 out of these 23 patients (96%) had increased alpha-ratios. One premenopausal patient out of 23 had elevated alpha-subunit level but a normal alpha-ratio.
CONCLUSION
Our data suggest that adding the simple calculation of alpha-ratio improves the ability of detecting gonadotropin alpha-subunit hypersecretion and thereby indentifying patients with NFPAs.
|
2022-09-23T00:32:25.018Z
|
97,430,314 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1063/1.2073969",
"MAG": "2087525517",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The nitrogen coimplantation characteristics in the Mg- and Be-implanted GaN with different dopant concentration ratios have been systematically investigated. The Hall-effect measurements show that the p-type characteristics are produced in the Mg- and Be-implanted GaN by the coimplantation of N atoms and subsequent annealing, which is essentially related to the column II/V dopant concentration ratio and annealing condition. This behavior may be attributed to the reduction of self-compensation induced by N vacancies and the enhanced acceptor substitution, which is in reasonable agreement with the surface stoichiometric switching determined by x-ray photoelectron spectroscopy measurements. From photoluminescence data, the activation energy of the Be acceptor level is evaluated to be about 145meV, which is shallower than that of the Mg acceptor. These experimental results indicate that the selective-area N coimplantation with Mg and Be atoms into GaN is an effective method to enhance the p-type conductivity ...
|
2022-09-23T01:58:04.952Z
|
25,941,911 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/cmdc.200900477",
"MAG": "2021101729",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Three new oxazole‐bridged combretastatin A analogues with additional functional groups at the B‐ring [‐SMe, ‐OH, p‐quinone] were tested for antiproliferative activity and specificity on human HL‐60 leukemia, 518A2 melanoma, and colon carcinomas HCT‐116 (wt)/(p53−/−) and HT‐29 cells. While all oxazoles, except quinone 8, were efficacious against HCT‐116 cells at submicromolar IC50 values (48 h incubation), only thioanisole 5 achieved this potency in combretastatin‐refractory HT‐29 cells by significant upregulation of p21cip1/waf1 associated with an S/G2 cell‐cycle arrest.
|
2022-09-14T18:57:08.314Z
|
149,769,618 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4103/aer.AER_21_19",
"MAG": "2940922421",
"PubMedCentral": "6545955"
},
"license": null,
"status": null,
"url": null
}
|
Background: Laparoscopic cholecystectomy (LC) is associated with high risk of postoperative nausea and vomiting (PONV) if no prophylactic antiemetic is used. Aims: The study compared prophylactic palonosetron and dexamethasone with ondansetron and dexamethasone in patients undergoing LC. Setting and Design: This prospective, double-blinded, randomized, controlled study was conducted at a tertiary care center. Materials and Methods: The study was carried out in 86 patients who underwent LC. The patients were randomly assigned to following study groups: Group 1 who received palonosetron (0.75 mg) with dexamethasone (8 mg) and Group II who received ondansetron (4 mg) with dexamethasone (8 mg). Patients were observed for nausea with visual analog scale and vomiting episode during 48 h postoperative follow-up. Statistical Analysis Used: Data were analyzed as mean, standard deviation, percentage, and number. The following statistical tests were used: paired or unpaired t-test, Mann–Whitney test, Chi-square test, and repeated ANOVA test. Results: There was no statistically significant difference in heart rate, mean arterial pressure, and oxygen saturation from baseline. During 48 h follow-up, the incidence of nausea, vomiting, and PONV was higher in Group II, but the difference was not statistically significant. The total dose of rescue antiemetic was 2.14 ± 4.15 mg in Group I and 5.00 ± 8.62 mg in Group II patients (P = 0.058). Headache was present in three patients in Group I and two patients of Group II. Conclusion: The palonosetron with dexamethasone is comparable to ondansetron with dexamethasone in the prevention of PONV in patients undergoing LC.
|
2022-12-13T10:15:15.653Z
|
137,665,382 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1179/174951409X12542264513807",
"MAG": "2005785853",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
AbstractCarburising, quenching, tempering and shot peening treatments are widely used on mass production of automotive industry, such as pinion gears and master gears. Variations on these processes may influence the flexural fatigue life of described components. The aim of this work was to study the influence of variations in shot peening time and variations in tempering temperature, of short fatigue cracks growth of carburised case of DIN 20MnCr5 steel. Samples blasted about 30 min and 1 h and tempered at 160°C, showed the best results relative to crack growth and to fatigue life.
|
2022-02-09T10:30:40.346Z
|
142,880,238 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/03612759.1991.9949453",
"MAG": "1533801822",
"PubMedCentral": null
},
"license": null,
"status": "CLOSED",
"url": null
}
|
Some people may be laughing when looking at you reading in your spare time. Some may be admired of you. And some may want be like you who have reading hobby. What about your own feel? Have you felt right? Reading is a need and a hobby at once. This condition is the on that will make you feel that you must read. If you know are looking for the book enPDFd the uses of literacy in early mediaeval europe as the choice of reading, you can find here.
|
2022-12-27T16:54:45.410Z
|
206,859,873 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1179/cim.2003.4.4.191",
"MAG": "2029413971",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Abstract In the published series of our first 100 cochlear implants only three developed major complications (Proops et al., 1999). We present a rare case of late granulations forming around a Nucleus cochlear implant, giving rise to erosion of the entire cochlea and adjacent mesotympanum. This pathology has only been reported once in the literature (Bertuleit et al., 1999).
|
2022-01-31T13:40:34.062Z
|
46,847,901 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/APSIPA.2017.8282014",
"MAG": "2786526357",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Parametric loudspeakers have very high directivity and can be applied to various applications. In such loudspeakers, modulating the carrier waves is important because the modulated waves are demodulated into audible waves by nonlinear interaction in the air. Amplitude modulation (AM) has been proposed as the modulation method for parametric loudspeakers and frequency modulation (FM) has been empirically utilized for them. However, FM has been insufficiently studied because it has been considered as one type of amplitude modulation for parametric loudspeakers. In this paper, we reveal that the demodulation in AM and FM differs in a parametric loudspeaker. In addition, we propose a new modulation method based on synchronized demodulation of AM and FM. The method achieves higher sound pressure levels at lower frequencies than conventional modulation methods. Finally, we confirm the method's effectiveness through evaluation experiments.
|
2022-07-19T06:02:10.695Z
|
95,663,395 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1063/1.105143",
"MAG": "2030487423",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A thermally stable, nonspiking ohmic contact to p‐GaAs has been developed based on the solid‐phase regrowth mechanism. The contact metallization consists of a layered structure of Pd(250 A)/Sb(100 A)/Mn(10 A)/Pd(250 A)/p‐GaAs. Thermal annealing of the contact between 300 and 600 °C for 10 s yields contact resistivities in the range of low 10−6 Ω cm2 on substrates doped to 2.5×1018 cm−3. A contact resistivity of 4.5×10−7 Ω cm2 can be obtained after annealing at 500 °C on samples with a doping concentration of 4.5×1019 cm−3. The contact metallization remains uniform in thickness and the contact interface is flat after the contact is formed. The consumption of the substrate is limited to less than a hundred angstroms. Contact resistivities are stable at 400 °C.
|
2022-08-28T22:37:44.825Z
|
245,290,094 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1093/geroni/igab046.3318",
"MAG": null,
"PubMedCentral": null
},
"license": "CCBY",
"status": "GOLD",
"url": "https://academic.oup.com/innovateage/article-pdf/5/Supplement_1/915/43191912/igab046.3318.pdf"
}
|
In older adulthood, individuals may experience acute and chronic stressors, such as the loss of independence, mobility, or the experience of chronic diseases. Loneliness is also a concern in older adulthood as many experience the loss of close others and smaller social networks. Loneliness is well-established as being associated with higher stress levels in younger adults, but there are mixed findings on the impact in older adulthood. Furthermore, while older adults may engage in behaviors designed to reduce and manage stress, it is not known whether these behaviors modulate the relationship between loneliness and chronic stress. The current study examined the relationship between loneliness and stress in older adulthood and the degree to which stress-management moderated this relationship (note: data collected prior to COVID-19 pandemic). We hypothesized that loneliness and perceived stress would be positively associated, but that stress-management would moderate this relationship. Participants included 40 healthy older adults (Mage= 69.18, Range:55-86yrs; 29 females) who completed the UCLA-Loneliness Scale, the Perceived Stress Scale, the NEO-FFI (to assess neuroticism), and demographic information about participation in stress management activities. We found that loneliness was significantly associated with chronic stress, r(38) = .539, p < .001. Furthermore, loneliness and neuroticism were significant predictors of perceived stress, F(2, 37) = 10.657, p < .001, R2 = .366. These findings demonstrate that loneliness is a significant predictor of perceived stress in older adulthood and point to a need for further exploration of effective stress-management tools in later life.
|
2022-09-02T03:17:01.512Z
|
2,998,846 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1136/sti.2007.028217",
"MAG": "2109258141",
"PubMedCentral": "2771901"
},
"license": null,
"status": "BRONZE",
"url": "https://sti.bmj.com/content/84/4/259.full.pdf"
}
|
Objective: In 2004, the Ministry of Health adopted revised protocols for the syndromic management of sexually transmitted infections (STI) that included routine HIV testing. A training programme for providers was developed on the revised protocols that featured interactive case studies and training videos. An objective of the first phase of the training programme was to test its effect on four measures of clinical practice: (1) routine HIV testing; (2) performance of physical examination; (3) risk-reduction counselling and (4) patient education. Methods: Clinical practice in a district where providers were trained was compared with a district without training. The measures of clinical practice were reported by 185 patients of providers who had been trained and compared with reports by 124 patients at comparison clinics. Results: Relative to patients at comparison clinics, a higher percentage of patients of trainees reported that the provider: (1) offered an HIV test (87% versus 29%; p<0.001); (2) conducted a physical examination (98% versus 64%; p<0.001); (3) helped them to make a plan to avoid future STI acquisition (95% versus 76%; p<0.001) and (4) provided patient-specific information about HIV risk (65% versus 32%; p<0.001). Among patients offered HIV testing, the percentage who accepted did not differ between groups (38% of 161 patients of trainees versus 50% of 36 comparison patients; p = 0.260). Overall, 33% of patients of trainees and 14% of comparison patients were tested (p<0.001). Conclusion: A multifaceted training programme was associated with higher rates of HIV testing, physical examination, risk-reduction counselling and better HIV risk education.
|
2022-09-04T23:01:42.395Z
|
91,177,861 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.2298/FIL1203631B",
"MAG": "2036707067",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In this paper, an application of quasi-σ-power increasing sequences has been
generalized for quasi- f -power increasing sequences. We have also obtained
some new results.
|
2022-09-15T05:44:24.153Z
|
121,637,667 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1177/1081286510393805",
"MAG": "2059890898",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This paper gives new demonstrations of Reynolds’ transport theorems for moving regions in Euclidean space. For moving volume regions the proof is based on differential forms and Stokes’ formula. Moving curves and surface regions are defined and the intrinsic normal time derivative is introduced. The corresponding surface transport theorem is derived using the partition of unity and the surface divergence theorem. A proof of the surface divergence theorem is also given.
|
2022-12-03T22:23:55.486Z
|
209,452,909 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1371/journal.pone.0266278",
"MAG": "3080902002",
"PubMedCentral": "8979445"
},
"license": "CCBY",
"status": "GOLD",
"url": "https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0266278&type=printable"
}
|
In this paper, I justify neutral mechanisms as the reasonable solutions for public good provision and cost shares in public goods problems. I illustrate that neutral mechanisms can be easily computed by the tractable set of conditions with straightforward interpretations for a class of public goods problems. I show that, unlike neutral mechanisms, ex ante incentive efficient mechanisms are not robust to a perturbation of the information structure at the time of mechanism selection. I highlight several merits of using neutral mechanisms instead of interim incentive efficient mechanisms: Neutral mechanisms yield sharp predictions, are invulnerable to the possibility of information leakage during the selection process, and have the attractive properties of both efficiency and equity. I discuss implications for the analysis of ex ante and interim incentive efficient mechanisms for public goods problems.
|
2022-12-12T03:35:03.739Z
|
221,989,365 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1086/646574",
"MAG": "1990402350",
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},
"license": null,
"status": null,
"url": null
}
|
OBJECTIVE Gloves containing chlorhexidine gluconate in an instant-release matrix on their inner surface (CHG gloves) were tested to determine their ability to rapidly inactivate infectious pathogens that may permeate or leak through the latex surface. DESIGN CHG gloves were exposed for 1 to 10 minutes to blood or media containing infectious pathogens (e.g., bacteria, fungi, parasites, and viruses) as well as to lymphocytes and macrophages that are known to be the primary carriers of human immunodeficiency virus (HIV). Inactivation of pathogens was determined either by in vitro assay or in vivo infectivity. Stressed control and CHG glove fingers were submerged in a viral pool (retrovirus or bacteriophage) and after a set time, the glove interiors were checked for presence of permeated virions. RESULTS CHG gloves rapidly inactivate all the pathogens tested including retrovirus and hepatitis B virus (90% to 100%). In the stressed glove fingers, live virus was detected in 26% of the control group but not in any of the CHG group. CONCLUSIONS The use of CHG gloves may reduce the risk of exposure to infectious fluid-borne pathogens should the integrity of the latex barrier be compromised by overt failure or by permeation of viruses. Rapid destruction of lymphocytes and macrophages may facilitate inactivation of HIV associated with these cells. Tests have shown that CHG coating does not alter physical properties of the glove, and, furthermore, CHG gloves do not show potential for dermal irritation or sensitization.
|
2022-09-13T15:39:52.578Z
|
94,103,538 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1590/S0100-40422007000300019",
"MAG": "1970386398",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Biodiesel was obtained by transesterification of babassu oil in anhydrous ethanol and methanol, employing NaOH as catalyst. The products obtained were characterized by physico-chemical and thermogravimetric analysis. It could be concluded that the properties of the two types of biodiesel (ethanolic and methanolic) are very similar when compared with diesel oil.
|
2022-12-23T02:22:19.270Z
|
198,894,484 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.25244/tf.v9i1.2490",
"MAG": "2787633623",
"PubMedCentral": null
},
"license": null,
"status": "CLOSED",
"url": null
}
|
o presente artigo pretende comparar a filosofia moral e a teologal de Zubiri com a etica tomasiana, a fim de esclarecer a relacao entre as nocoes de “Lei Natural” e “religacao”.
|
2022-01-24T18:11:23.445Z
|
240,384,891 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.31219/osf.io/3ycvt",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": "GREEN",
"url": "https://osf.io/3ycvt/download"
}
|
Banyak cara dan usaha yang dilakukan oleh pemerintah untuk menunjang dan meningkatkan kualitas pendidikan sekolah, seperti menerbitkan peraturan pemerintah RI Nomer 19 tahun 2005 tentang standar nasional pendidikan. Saya akan mengupas sedikit tentang sekolah MTS X merupakan salah satu lembaga pendidikan formal swasta dihadapkan dengan masalah bagaimana meningkatkan kualitasnya. Penelitian yang dilakukan bertujuan untuk mengidentifikasi peluang, ancaman, kekuatan dan kelemahan, untuk perencanaan strategis yang tepat untuk meningkatkan kualitas. Penelitian ini menggunakan metode kualitatif . menurut laporan yang diperoleh dari pihak-pihak yang mengetahui kondisi dan keadaan sekolah tersebut. Hasil dari penelitian ada beberapa hal yang harus dihadapi yaitu ada peluang, ancaman, kekuatan dan kelemahan yang berasal dari sekolah MTS X. Hal inilah yang menjadi faktor utama untuk meningkatkan kualitasnya. Hasil dari identifikasi situasi dan kondisi itu dibentuklah beberapa strategi yang dapat digunakan untuk meningkatkan kualitasnya. Ada beberapa strategi yang lebih difokuskan yang dapat digunakan untuk meningkatkan dan menunjang sekolah MTS X ini yaitu pada peningkatan kualitas melalui pembelajaran, pemenuhan infrastruktur, penambahan tenaga kerja pendidik, mencari jaringan diluar dengan cara bekerja sama antara satu dengan yang lainnya.Kata kunci : peluang, Ancaman, kekuatan, kelemahan, strategi, kualitas lembaga-lembaga dengan jalur pendidikan formal memegang peranan penting untuk pengembangan sumber daya manusia maka dari itu butuh yang namanya keseimbangan antar satu dengan yang lain.
|
2022-02-18T00:22:39Z
|
61,392,869 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.4156/AISS.VOL4.ISSUE3.12",
"MAG": "2318024210",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
This paper focuses on automobile failure detection and diagnostic accuracy, which have always been a hot research issue at home and abroad. Considering the deficiency of so many traditional fault diagnosis algorithms which failed to tell the complex relationship between the fault phenomenon and the reasons, and resulted in inaccurate fault diagnosis, this article proposed a new fault diagnosis of maximizing fuzzy dependability based on fuzzy rough set theory. This method could evaluate vehicle faults according to the dependency degree of condition attribute and calculate the probability of vehicle faults in line with fuzzy dependency degree. On this basis, the result will list out specific steps of fault diagnosis. Theoretical analysis and simulation experiments have proved the efficiency of this method on vehicle fault diagnosis. It could improve the reliability of fault monitoring.
|
2022-02-11T15:40:11.306Z
|
120,493,528 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1143/JPSJ.55.2477A",
"MAG": "1980467710",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Raman scattering spectra of NH 4 H 2 PO 4 and ND 4 D 2 PO 4 are studied in the paraelectric and antiferroelectric phases to determine the site symmetries of H 2 PO 4 - (D 2 PO 4 - ) and NH 4 + (ND 4 + ) ions. The site symmetries of both ions are found to be C 1 in the antiferroelectric phase in accordance with the Nagamiya model. On the other hand, any evidence of the local C 1 symmetry is not found in the spectra above the transition temperature and the site symmetries of these ions are determined to be C 2 . These experimental results are discussed in relation to the validity of the Slater type model.
|
2022-06-20T11:10:58.517Z
|
250,849,671 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1088/0268-1242/7/3B/130",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The effect of electron space charges in a potential well on the transmission coefficient of resonant tunnelling of electrons through a one-dimensional double barrier is investigated using the standard transfer-matrix method. It is shown that the bistable states in the transmission coefficient appear due to the positive feedback loop to incident electron space charges in the well. The growth rate of the small perturbation in the unstable region between the bistable states is also investigated numerically.
|
2022-07-31T19:57:08.394Z
|
86,076,721 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.23885/1814-3326-2012-8-2-232-239",
"MAG": "2182210225",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://doi.org/10.23885/1814-3326-2012-8-2-232-239"
}
|
species of jewel-beetles (Coleoptera: Buprestidae) belonging to three subfamilies (Julodinae, Polycestinae and Chrysochroinae) were collected in Kurdistan Province of Iran during 2009-2011. Of these 7 species from 6 genera are new for Iranian fauna and 41 species from 9 genera are new for Kurdistan Province. Резюме. В 2009-2011 годах в провинции Курдистан (Западный Иран) были собраны 60 видов жуков-златок (Coleoptera: Buprestidae), относящихся к трем подсемействам (Julodinae, Polycestinae и Chrysochroinae). 7 видов из 6 родов оказались новыми для фауны Ирана и 41 вид из 9 родов впервые указываются для Курдистана.
|
2022-11-21T15:00:09.358Z
|
229,513,467 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1002/essoar.10504459.1",
"MAG": "3106920501",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The atmospheric measurements made by the six Mars orbiters in operation (as of July 2020) significantly improved our understanding of the Martian weather and climate. However, while some of these o...
|
2022-12-11T03:21:03.167Z
|
40,876,381 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1021/JF991203D",
"MAG": "2009545097",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Highly reactive radicals, ROO(*), were generated from 2, 2'-azobis[2-(2-imidazolin-2-yl)propane] and linoleic acid. The ROO(*) scavenging capacity of some Italian red wines was evaluated following the changes in oxygen consumption. Under the experimental conditions the time course of oxygen consumption shows two typical behaviors: trolox-like (class I) and gallic acid-like (class II). Usually the time course of wine was similar to that of gallic acid. The rate of oxygen consumption was found to decrease exponentially with the amount of wine or gallic acid added to the test solution. On this basis the capacity of red wines to scavenge peroxy radicals was expressed as content of gallic acid (S(GA)). The S(GA) values were found to be correlated to the amount of total proanthocyanidins and total polyphenols of some Italian red wines (p < 0.01). The proanthocyanidins extracted from seeds were shown to make a major contribution to the peroxy radical scavenging capacity of red wines, whereas, interestingly, the chemical class of the low molecular weight tannins reactive to vanillin did not correlate with the S(GA) values.
|
2022-12-20T19:56:29.852Z
|
11,700,541 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/J.1365-277X.2007.00813.X",
"MAG": "2000241898",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
BACKGROUND
Management guidelines for care of coeliac patients published by the British Society of Gastroenterology (BSG), 2002 recommend that patients should see a dietitian at diagnosis and at least at annual review. In the absence of information on dietetic provision in coeliac disease management in the UK and with surveys in other countries suggesting that patients with coeliac disease gain most information from coeliac support groups (Green et al., 2001), Coeliac UK set out to investigate dietetic services for coeliac patients in the UK.
METHODS
Questionnaires were sent to dietetic departments in the UK via the Regional Managers Group of the British Dietetic Association (BDA) by email. The questionnaires were in two parts, the first was completed by the dietetic manager and the second by the dietitian with the main responsibility for the management of coeliac patients within the department.
RESULTS
Over one-quarter of departments reported allocating a maximum of 1 h of dietitians' time per month per 100,000 population to seeing coeliac patients. More hours were allocated to coeliac patients in departments where dietitians had attended coeliac disease training, where dietitians were professional members of Coeliac UK or where coeliac patient care was undertaken by a multi-disciplinary team.
CONCLUSION
There is wide variation in dietetic provision for diagnosed coeliac patients in the UK. The Coeliac UK survey suggests that the current level of dietetic provision is in the region of one-third of what is required according to the BSG management guidelines (British Society of Gastroenterology (BSG), 2002) to provide diagnosed coeliacs with only basic support and annual review.
|
2022-12-30T05:15:54.752Z
|
125,306,926 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.7151/DMDICO.1169",
"MAG": "2567299342",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
We consider ordinary differential inclusions and we state and discuss some averaging results for these inclusions. Our results are proved under weaker conditions than the results in the literature.
|
2022-01-27T08:05:19.748Z
|
120,623,671 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/20.11626",
"MAG": "2060216061",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The mean magnetic induction B of a permalloy specimen was determined by measuring the Larmor precession angle of a polarized neutron beam. The measurements were performed in a temperature range from T/sub c/=-60 K to +20 K at magnetic fields up to 1150 A/cm. The temperature behavior of B with the specimen close to magnetic saturation could be fitted well by a model of a ferromagnet consisting of mutually independent grains with different phase transition temperatures. Small field-dependent depolarization was measured within a few Kelvins around T/sub c/ and is attributed to an inhomogeneous magnetization distribution caused by the spread in phase-transition temperatures. >
|
2022-02-09T22:00:37.220Z
|
248,393,201 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/00150193.2022.2034406",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Abstract BaBiSb3Ti4O15 is a Bi-based Sb substituted Barium Bismuth Titanate ceramic is processed by mixed oxide process, calcined at 850 °C and subsequently sintered at 875 °C temperature. Room temperature XRD study confirms the formation of single-phase compound. The SEM micrograph shows uniformly distributed grains over the surface of the compound. Dielectric characteristic is studied in a wide frequency (100 Hz–10MHz) and temperature (30 °C–500 °C) range. Phase transition broadening is observed on substitution of antimony ion at bismuth site indicating diffuse phase transition in the material. From the appearance of P ∼ E loop, the existence of ferroelectricity in the material is confirmed. The complex impedance plots inform the impact of the grain and grain interface in the resistive and capacitive behavior of the compound. Negative temperature coefficient of resistance (NTCR) characteristics are noticed from the impedance study confirming the semiconductor-like behavior of the compound.
|
2022-05-12T20:57:34.942Z
|
246,895,588 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.31729/jnma.7251",
"MAG": null,
"PubMedCentral": "9199999"
},
"license": null,
"status": "GREEN",
"url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9199999"
}
|
ABSTRACT A weakening or defect in the posterolateral abdominal wall can lead to development of lumbar hernia. These defects are particularly common in the Petit's inferior triangle or the Grynfeltt-Lesshaft superior triangle. There are very few cases of primary lumbar hernias that have been described in the literature till date. As it is a rare entity, it is often misdiagnosed, leading to delay in management. We present a case of a 66-year-old male with no previous surgery who presented with a mass in the left lumbar region for last ten years. The mass gradually increased in size and caused vague dragging pain. On Computed tomography, the diagnosis of Grynfeltt hernia was made. The patient underwent a laparoscopic mesh repair and had an uneventful postoperative hospital stay. Although a rare entity, there should be a high degree of suspicion of a lumbar hernia when evaluating a case of a lumbar mass. Early diagnosis by computed tomography and management with open or minimally invasive techniques can prevent complications.
|
2022-07-04T21:20:45.254Z
|
201,640,365 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.18429/JACOW-IPAC2019-TUPGW016",
"MAG": "2980778039",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The storage ring Karlsruhe Research Accelerator (KARA) at KIT operates in a wide energy range from 0.5 to 2.5 GeV. Different operation modes have been implemented at KARA ring, so far, the double bend achromat (DBA) lattice with non-dispersive straight sections, the theoretical minimum emittance (TME) lattice with distributed dispersion, different versions of low compaction factor optics with highly stretched dispersion function. Short bunches of a few ps pulse width are available at KARA. Low alpha optics has been simulated, tested and implemented in a wide operational range of ring and now routinely used at 1.3 GeV for studies of beam bursting effects caused by coherent synchrotron radiation in THz frequency range. Different non-linear effects, in particular, residual high order components of magnetic field generated in high field superconducting wigglers have been studied and cured. Based on good agreement between computer simulations and experiments, a new operation mode at high vertical tune was implemented. The beam performance during user operation as well as at low alpha regimes was essentially improved. A specific optics with negative compaction factor was simulated and tested.
|
2022-01-27T01:53:05.820Z
|
139,025,757 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.6000/1927-5129.2012.08.02.65",
"MAG": "2322280435",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
: Dosimetric Evaluation & Verification Of External Beam 3-D Treatment Plans In Humanoid Phantom have been carried out. In this study male anthromorphic phantom, model no.702 D, manufactured by Atom Ltd has been used. The plan was delivered to phantom and TLD- 100 was placed in cavities to evaluate and verify the dose delivered by implementing 3D treatment plans. TLD 100 was calibrated using SIEMENS PRIMUS PLUS Linear Accelerator with calibrated 6 MV X ray beam. We chose phantom skull, abdomen and pelvis region for making treatment plans and then doses by treatment plans have been verified by TLDs. 4%, 3.5% and 3% variation in the results was found for skull, pelvis and abdomen region respectively which is within the safe limit of accuracy i-e from 3% to 5 %. Before working with TLDs, it has also been found that thermoluminescent dosimeters were showing the linear response and results are reproducible for the dose range from 50 cGy to 200 cGy. This study has been performed at Karachi Institute of Radiotherapy and Nuclear Medicine (KIRAN) during the year 2010-2011.
|
2022-08-20T03:01:40.972Z
|
252,297,578 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.55645/kharismatech.v17i2.250",
"MAG": null,
"PubMedCentral": null
},
"license": "CCBYSA",
"status": "HYBRID",
"url": "https://jurnal.kharisma.ac.id/kharismatech/article/download/250/178"
}
|
Penelitian ini bertujuan buat mengenali apakah tata cara user centered design bisa memberikan pengaruh yang baik terhadap user interface pada aplikasi haloprint- digital. Penulis memakai pendekatan tata cara user centered design, yang dimana dalam proses pembuatan aplikasi ini diawali dengan perancangan design user interface diharapkan bisa mengoptimalisasi perancangan aplikasi serta memudahkan user dalam memakai aplikasi. Hasil dari penelitian ini terdapat rancangan baru serta sudah diuji memakai tata cara Cognitive Walkthrough dengan mengaitkan 5 partisipan yang sudah bergabung sejak dini dalam penelitian ini.
|
2022-09-17T14:26:04.300Z
|
98,065,353 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/10584580600949022",
"MAG": "2123746438",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
ABSTRACT Bismuth ferrite BiFeO3 is a multiferroic material, exhibiting both electric and magnetic ordering at room temperature, properties which make it a promising material for use in novel device fabrication. We report here the successful fabrication of BiFeO3 thin films and of isolated micron-sized structures by pulsed laser deposition. We present the structure and morphology of the films as well as their local ferroelectric properties investigated by piezoresponse force microscopy, a unique tool for the study of the basic piezoelectric & ferroelectric phenomena at the nanometer scale (ferroelectric domains imaging and local switching). In addition, preliminary magnetic measurements demonstrate the coexistence at room temperature of weak ferromagnetism and of ferroelectricity.
|
2022-09-23T00:55:27.049Z
|
15,588,188 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/ICIP.2009.5414439",
"MAG": "2126594203",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
In this work, we propose a model-based layer bit allocation algorithm for joint spatial-quality (S-Q) scalability in H.264/SVC. The complicated inter-layer dependency is decoupled by the proposed spatial and quality rate and distortion (R-D) models. We show that the R-D characteristics of a dependent layer can be represented by a number of independent functions with GOP as a basic coding unit. Then, the joint bit allocation problem is formulated as a two-step optimization problem by the Lagrangian multiplier method, which can be numerically solved using the proposed R-D models. Finally, we develop a low-complexity bit allocation algorithm for the combined spatial and quality scalability in H.264/SVC. It is shown by experimental results that our proposed bit allocation algorithm achieves the coding performance significantly improved from current reference software JSVM.
|
2022-12-15T08:57:13.570Z
|
830,023 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/J.1748-1716.1981.TB06920.X",
"MAG": "1980098832",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
We compared interstitial ion concentrations in rat brain cortex during two conditions where pronounced changes are observed: spreading depression and ischemia. Initially, during the two phenomena, an increase of [K+]e from 3 to approximately 10 mM were observed, but only small changes of the other ion concentrations. Hereafter, [K+]e exhibited a rapid increase (2-3 s) to 55 mM, whereas [Na+]e rapidly decreased to 60 mM, [Cl-]e to 75 mM, and [Ca++]e to 0.08 mM. The changes were accompanied by a rapid negative shift in the local electrical potential. However, there were differences in the ionic events during the two phenomena. In spreading depression, the initial [K+]e increase took place in 5-10 s, but in ischemia it lasted 1-2 min. The ionic perturbations were spontaneously reverted in SD, but in ischemia they proceeded further and reached after 5 min (mM): [K+]e 75, [Na+]e 50, [Cl-]e 72, and [Ca++]e 0.06. The similar chain of ionic events during spreading depression and ischemia suggests a common mechanism for the ionic changes, probably involving changes of ionic permeability of brain cells.
|
2022-12-30T18:35:16.729Z
|
199,608,638 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.26442/1815-1434_2016.2.57-60",
"MAG": "2964336701",
"PubMedCentral": null
},
"license": "CCBYNC",
"status": "GOLD",
"url": "https://doi.org/10.26442/1815-1434_2016.2.57-60"
}
|
Most neuroendocrine tumors (NET) grow slower than other epithelial malignant neoplasms, but they can be aggressive and resistant to treatment. NET of the pancreas account for only 0.55% in the structure of these formations. From this point of view, we present the description of a clinical case and the treatment of a NET of the pancreas. It demonstrates the possibility of long-term combined treatment of NET of this localization.
|
2022-02-08T05:37:27.509Z
|
135,299,843 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.21236/ad0600904",
"MAG": "62535031",
"PubMedCentral": null
},
"license": null,
"status": "CLOSED",
"url": null
}
|
Abstract : A new set of master seeds were prepared similarly to those used in the previous program. Ten tungsten crystals were grown by the arc-verneuil process from which three were selected on the basis of minimum crystal misorientation and deviation from cylindrical axis. The three crystals selected were machined to form rectangular billets to allow uniform deformation and crystallographic rolling plane and rolling direction to be within the desired limits. The program is designed to illustrate both the ability and the feasibility of fabricating a large single crystal into sheet. Subsequent roll- anneal cycles will be used which retain monocrystallinity and thus the inherently low ductile-to-brittle transition temperature of tungsten single crystals. The previous program has illustrated the possibility of such an approach. This program is concerned with rigorously defining the variables which influence recrystallization of a tungsten single crystal in hopes to control and best utilize the variables in order to allow more flexibility in processing. The substructural changes accompanying the processing will then be observed and the effect of these changes on the ductile-tobrittle transition temperature recorded.
|
2022-02-09T11:45:19.398Z
|
120,788,783 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/17476939408814774",
"MAG": "1968290286",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Initial and boundary value problems are studied for system (1) below with λ > 1 for a half-infinite barand a half space in R n + 1, respectively. This system is non-parabolic for λ > 1 because the right-hand side operator is not strongly elliptic. Fourier transform techniques are used after reducing the initial problem to some for a system of ordinary differential equations. The boundary value problem is treated utilizing the heat transfer equation.
|
2022-02-09T21:18:48.415Z
|
19,506,251 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/10408440701749454",
"MAG": "2121276791",
"PubMedCentral": null
},
"license": null,
"status": "CLOSED",
"url": null
}
|
This review focuses on the risk assessment associated with human exposure to cyanotoxins, secondary metabolites of an ubiquitous group of photosynthetic procariota. Cyanobacteria occurr especially in eutrophic inland and coastal surface waters, where under favorable conditions they attain high densities and may form blooms and scums. Cyanotoxins can be grouped according to their biological effects into hepatotoxins, neurotoxins, cytotoxins, and toxins with irritating potential, also acting on the gastrointestinal system. The chemical and toxicological properties of the main cyanotoxins, relevant for the evaluation of possible risks for human health, are presented. Humans may be exposed to cyanotoxins via several routes, with the oral one being by far the most important, occurring by ingesting contaminated drinking water, food, some dietary supplements, or water during recreational activities. Acute and short-term toxic effects have been associated in humans with exposure to high levels of cyanotoxins in drinking and bathing waters. However, the chronic exposure to low cyanotoxin levels remains a critical issue. This article identifies the actual risky exposure scenarios, provides toxicologically derived reference values, and discusses open issues and research needs.
|
2022-12-25T23:04:01.625Z
|
226,822,037 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.12775/aunc_zarz.2020.010",
"MAG": "3034614053",
"PubMedCentral": null
},
"license": "CCBYND",
"status": "GOLD",
"url": "https://apcz.umk.pl/czasopisma/index.php/AUNC_ZARZ/article/download/AUNC_ZARZ.2020.010/25684"
}
|
The aim of the article is to determine the importance, benefits and ways to enhance a culture of gender diversity in the organization. The article contains an analysis on gender diversity management and focuses on financial services sector including entry-level and senior management female employees’ representation. It is highlighted that building a more diverse workforce is everyone’s responsibility and that diversity should be the highest priority to the company’s strategy. The article will inform practitioners on gender balance matter, best practices and implications for the organizations.
|
2022-01-27T08:14:13.994Z
|
161,174,929 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.17765/1516-2664.2009V14N2P%P",
"MAG": "1521167180",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
O presente trabalho pretende discutir as politicas educacionais do Banco Mundial para a America Latina, tendo como fonte o documento “Banco Mundial. Prioridades y estrategias para la educacion”. Entende-se que, para compreender as propostas estabelecidas por este orgao internacional, seja necessaria, antes, uma compreensao historica das lutas economicas e sociais que estao postas no seio da sociedade contemporânea. Desta forma, inicialmente sera realizada uma reflexao acerca do desenvolvimento do capital apos a Segunda Grande Guerra. Posteriormente serao tratadas as influencias dessa conjuntura economica nas propostas do Banco Mundial, uma vez que ha uma divergencia entre as expectativas que o capital produz, onde seria possivel a existencia de um mercado globalizado, com o pleno desenvolvimento de todas as nacoes, e a posicao de subordinacao economica que historicamente se destinou aos paises latino-americanos.
|
2022-02-08T22:22:06.599Z
|
218,692,842 |
{
"externalids": {
"ACL": "J99-3012",
"ArXiv": null,
"DOI": "10.1179/sre.2001.36.279.75",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
A preparation derlnd e oUre iy f rom OPIUM by a proceM which wh ils t eliminating those cc nantuee ea t ha t g Lve r Lse t o d isagreea ble a fter · etl'ects. reta ins In the fullest degr ee th e u nrivalled s leep · pr oduci n g a n d pai nallaying propert ies of the drug . Preparatlons which make various claims to u n ique me r it a r e conllnua lly bein g otl'ered to the profess ion : th ey oft en prove exa ggera ted and e phemeral. T he reputa tio n of NEPENTHE: b ba sed not on our a dve r t isem en ts, but on the experLence of thousands of practl t lone rs of su ccesss ive gen erat lo"s. Alwa}'1 un ifor m In s t rengt h . Gives mo re relld than any othe r anodyn e. NEPENTHE Ls sent ou t In 2-02. , 4 _02 ., 8 _02. and H -02. bott les.
|
2022-07-05T10:15:39.853Z
|
73,107,437 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1177/00220345610400050301",
"MAG": "2159685053",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
Studies by McClure and Folk,' 2 McClure,3 and Bavetta and McClure4 suggest that dry skim milk prepared by either the roller or the spray process is cariogenic for the white rat. The dental caries-producing potential of the milks tested paralleled the severity of the commercial heat treatment employed in the drying procedures.3 Bavetta and McClure4 attributed the cariogenicity of diets containing heat-processed skimmilk powder to a critical deficiency of lysine. Recently, however, Mauron, Kinkel, and Cremer3 reported that the heating of dry whole milk affects neither the incidence nor the degree of dental caries in the rat and that there is no significant relationship between the content of utilizable lysine and the cariogenic potency of milk-containing diets. In each of the afore-mentioned investigations, dry milk powder comprised from 35 to 40 per cent of the total experimental diet. Data pertaining to the cariogenicity of heat-treated cow's milk in rats fed milk alone are lacking. To permit a more comprehensive evaluation of the relationship between dry cow's milk and rat dental caries, a comparison has been made of the dental caries incidence in rats restricted to diets containing 0, 39, and 100 per cent non-fat dry milk.
|
2022-09-10T03:35:51.269Z
|
247,627,397 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1371/journal.pone.0264948",
"MAG": null,
"PubMedCentral": "8942279"
},
"license": "CCBY",
"status": "GOLD",
"url": "https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0264948&type=printable"
}
|
Dependency on the Internet in daily life is increasing, and the negative consequences this dependence may have on mental health are not sufficiently understood. The aim of this study was to investigate the relationship between Korean adolescents’ Internet usage time and their mental health. This cross-sectional study included 29,811 high school students ages 16–18 from the 2018 Korea Youth Risk Behavior Web-Based Survey. Participants’ mean Internet usage time was 193.4±1.6 min/day. Internet usage time was associated with sex, grade level, type of school, living arrangement, economic status, academic achievement, and experience of school violence. With regard to mental health, subjective health status, stress, feelings of sadness, and suicidal ideation were also related to Internet usage time. The group with more than average Internet usage had poorer subjective health, higher level of stress, and had feelings of sadness and suicidal ideation compared to the group with less than average Internet usage. To effectively manage Internet usage time, interventions to lower Internet usage and leisure programs that could replace Internet usage need to be developed.
|
2022-12-12T12:32:04.581Z
|
2,246,670 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1142/9789812791962_0013",
"MAG": "2039368921",
"PubMedCentral": null
},
"license": null,
"status": "CLOSED",
"url": null
}
|
This note is an incomplete summary of results on single equational axioms for algebraic theories Pioneering results were obtained decades ago without the use of computers by logicians such as Tarski Higman Neumann and Padmanabhan Use of today s high speed computers and sophisticated soft ware for searching for proofs and counterexamples has led to many additional results Considered here are equationally de ned algebras and the goal is to nd simple single equations bases that axiomatize algebras that are ordinarily presented with sets of equations For example a standard way to de ne group theory is as an algebra with a binary operation a unary operation and a constant e satisfying the three equations
|
2022-12-12T22:46:36.606Z
|
106,016,581 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1080/10420150.2018.1499735",
"MAG": "2883202075",
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
ABSTRACT The silicon NPN rf power transistors were irradiated with different linear energy transfer (LET) ions such as 50 MeV Li3+, 80 MeV C6+ and 150 MeV Ag12+ ions in the dose range of 1–100 Mrad. The SRIM simulation was used to understand the energy loss and range of these ions in the transistor structure. The different electrical parameters such as Gummel characteristics, excess base current (ΔIB), DC current gain (hFE), displacement damage factor (K) and output characteristics were systematically studied before and after irradiation. The ion irradiation results were compared with 60Co-gamma irradiation result in the same dose range. A considerable increase in base current (IB) and a decrease in hFE and ICSat were observed after irradiation. The degradation in the electrical parameters was comparably very high for Ag12+ ion-irradiated transistor when compared to other ion-irradiated transistors, whereas the degradation in the electrical parameters for Li3+ and C6+ ion-irradiated transistors was comparable with gamma-irradiated transistor. The isochronal annealing study was conducted on the 100 Mrad irradiated transistors up to 500°C to analyze the recovery in different electrical parameters. The hFE and other electrical parameters of irradiated transistors were almost recovered after 500°C for 50 MeV Li3+, 80 MeV C6+ ion and 60Co-gamma-irradiated transistors, whereas for 150 MeV Ag12+ ion-irradiated transistor, the recovery in electrical characteristics is not complete.
|
2022-12-19T10:50:46.794Z
|
73,313,279 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1111/voxs.12032",
"MAG": "2105682753",
"PubMedCentral": null
},
"license": null,
"status": "BRONZE",
"url": "https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/voxs.12032"
}
|
Severely injured patients are at a risk of acute traumatic coagulopathy contributing to high mortally rates. The early use of tranexamic acid in this setting has been shown to be safe and improves survival. Optimal FFP: Red cell ratios needed with respect to outcomes are yet to be defined. Slow turnaround times associated with the use of laboratory based coagulation testing can lead to delays in appropriate component support with a need for validated algorithms for near patient global tests of haemostasis. Multidisciplinary protocols are required for managing traumatic haemorrhage with emphasis on good communication supported by training, audit and on‐going review of cases to optimise patient care.
|
2022-02-11T09:06:40.953Z
|
236,479,943 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1109/ICPADM49635.2021.9493993",
"MAG": null,
"PubMedCentral": null
},
"license": null,
"status": null,
"url": null
}
|
The CERN accelerator complex uses kicker magnets that are pulsed with voltages of up to 80 kV and pulse rise times as fast as 100 ns. For pulse transmission, special coaxial high voltage cables are used together with custom designed connectors with high dielectric strength, low partial discharges, and precise impedance. Several types of connectors are in use at CERN since decades. The aim is to develop a connector, which will be used for a polyethylene prototype cable at 60 kV, to possibly replace the existing SF6 gas filled cables. Improvements for better voltage holding and significantly reduced partial discharges have been investigated and are outlined. The connectors are simulated using Finite Element Method (FEM) analysis and are subsequently high voltage tested to identify weaknesses and finally introduce a new improved connector design. Existing connectors have been inspected, simulated, HV tested in the laboratory, and their weak points have been analyzed. The influence of triple points inside the connector and the ways to treat them were studied. The test procedure, including partial discharge measurements and inception voltage tests, is outlined. Based on the knowledge gained, a new design for future 60 kV connectors has been developed and is analyzed. Results of simulations and HV tests are presented and show the initial feasibility of the design.
|
2022-01-23T04:07:44.631Z
|
248,611,847 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.3390/ma15093257",
"MAG": null,
"PubMedCentral": "9101604"
},
"license": "CCBY",
"status": "GOLD",
"url": "https://www.mdpi.com/1996-1944/15/9/3257/pdf?version=1651819691"
}
|
An efficient and environmentally friendly combustion technique was employed to produce ZnO nanopowders with different Eu concentrations (from 0.001 g to 5 g). The structural morphology of the Eu2O3-ZnO nanocomposites was examined using XRD, SEM, and infrared spectroscopy (FT-IR). In addition, UV-Vis diffuse reflectance spectroscopy was also used to investigate the effects of europium (Eu) dopant on the optical behaviors and energy bandgaps of nano-complex oxides. The photocatalytic degradation efficiency of phenol and methylene blue was investigated using all the prepared Eu2O3-ZnO nanostructured samples. Photocatalytic effectiveness increased when europium (Eu) doping ratios increased. After adding moderate Eu, more hydroxyl radicals were generated over ZnO. The best photocatalyst for phenol degradation was 1 percent Eu2O3-ZnO, while it was 0.5 percent Eu2O3-ZnO for methylene blue solutions. The obtained Eu2O3-doped ZnO nanostructured materials are considered innovative, promising candidates for a wide range of nano-applications, including biomedical and photocatalytic degradation of organic dyes and phenol.
|
2022-12-12T19:25:04.863Z
|
199,006,047 |
{
"externalids": {
"ACL": null,
"ArXiv": null,
"DOI": "10.1088/1742-6596/1267/1/012015",
"MAG": "2960265202",
"PubMedCentral": null
},
"license": null,
"status": "GOLD",
"url": "https://doi.org/10.1088/1742-6596/1267/1/012015"
}
|
Inconsistency of workpieces always results in low level automation of subsequent finishing process. As decreasing number of skilled workers, the demands of flexible manufacturing with robots is growing. In this paper, a kind of workpiece with complex free-form surface will be chamfered by industrial robots. Due to the intolerant differences among workpieces, traditional teach-playback method for robot is not appropriate for this application. The edge spline of each workpiece needs to be detected so that trajectories are generated to chamfer. Thus, an approach to edge extraction based on a 3D point cloud obtained by the 3D industrial camera is introduced to solve this problem. A time optimizing method is proposed to accelerate the extraction process. Finally, we decrease computing time from 55 minutes to 300 seconds, and the precision is 0.4180 mm.
|
2022-12-16T15:19:57.631Z
|