791 research outputs found

    PORTUGUESE ENGAGED RESEARCH AND LEARNING COMMUNITY

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    The current research was performed within the ENtRANCE Erasmus+ project in order to identify how may Portuguese Higher Education Institutions (HEI) provide independent participatory research support in response to concerns experienced by civil society, namely based on EU societal challenges. Even though the Biosense project [1] assumed the creation of the first Science Shop in Portugal, it was only active between 2011 and 2013 and there is still no formal evidence of any other one. Nevertheless, several Portuguese HEIs already provide informal services on behalf of citizens and local civil society.info:eu-repo/semantics/publishedVersio

    Electroencephalogram background activity characterization with Detrended Moving Average in Alzheimer's disease patients

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    The aim of this study was to analyse the electroencephalogram (EEG) background activity in Alzheimer's disease (AD) with the Detrended Moving Average (DMA) method, a new approach to quantify correlation properties in non-stationary signals with underlying trends. EEGs were recorded from the 19 scalp loci of the international 10-20 system in 11 AD patients and 11 age-matched controls. Our results showed two scaling regions in all subjects' channels, with a clear bend when their corresponding slopes (alpha(1) and alpha(2)) were distinctly different. With the exception of electrode T4, the alpha(1) values were lower in control subjects than in AD patients, with significant differences at TS, P3, P4 and O1 (p < 0.01, Student's t-test). On the other hand, alpha(2) values were higher in control subjects than in AD patients, with significant differences only at F4. Furthermore, we evaluated the ability of alpha(2) to discriminate AD patients from control subjects at these electrodes using ROC plots. We obtained a maximum accuracy of 81.82% at O1 with alpha(1) and at F4 with alpha(2). These findings suggest that the scaling behaviour of the EEG is sensitive to AD and that the DMA method could help to increase our insight into brain dysfunction in AD

    Levels of cancellation for monoids and modules

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    Levels of cancellativity in commutative monoids M, determined by stable rank values in Z>0 ∪ {∞} for elements of M, are investigated. The behavior of the stable ranks of multiples ka, for k ∈ Z>0 and a ∈ M, is determined. In the case of a refinement monoid M, the possible stable rank values in archimedean components of M are pinned down. Finally, stable rank in monoids built from isomorphism or other equivalence classes of modules over a ring is discussed.The first and sixth authors were partially supported by the Spanish State Research Agency (grant No. PID2020-113047GB-I00/AEI/10.13039/501100011033), by the Comissionat per Universitats i Recerca de la Generalitat de Catalunya (grant No. 2017-SGR-1725) and by the Spanish State Research Agency through the Severo Ochoa and María de Maeztu Program for Centers and Units of Excellence in R&D (CEX2020-001084-M). The third author was partially supported by the Simons Foundation (grant #963435). The third and fourth authors thank the Mathematics Department of the Universitat Autònoma de Barcelona for hospitality during their visits, and the fourth author also thanks the Mathematics Departments of the University of California, Santa Barbara and the Universidad de Cádiz for their hospitality during the early part of this project. The fifth author was partially supported by PAI III grant FQM- 298 of the Junta de Andalucía, by the DGI-MINECO and European Regional Development Fund, jointly, through grant PID2020-113047GB-I00, and by the grant “Operator Theory: an interdisciplinary approach”, reference ProyExcel 00780, a project financed in the 2021 call for Grants for Excellence Projects, under a competitive bidding regime, aimed at entities qualified as Agents of the Andalusian Knowledge System, in the scope of the Plan Andaluz de Investigación, Desarrollo e Innovación (PAIDI 2020), Consejería de Universidad, Investigación e Innovación of the Junta de Andalucía

    Attitudes Regarding the Use of Ventilator Support Given a Supposed Terminal Condition among Community-Dwelling Mexican American and Non-Hispanic White Older Adults: A Pilot Study

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    Purpose. To determine the factors that are associated with Mexican Americans' preference for ventilator support, given a supposed terminal diagnosis. Methods. 100 Mexican Americans, aged 60–89, were recruited and screened for MMSE scores above 18. Eligible subjects answered a questionnaire in their preferred language (English/Spanish) concerning ventilator use during terminal illness. Mediator variables examined included demographics, generation, religiosity, occupation, self-reported depression, self-reported health, and activities of daily living. Results. Being first or second generation American (OR = 0.18, CI = 0.05–0.66) with no IADL disability (OR = 0.11, CI = 0.02–0.59) and having depressive symptoms (OR = 1.43, CI = 1.08–1.89) were associated with preference for ventilator support. Implications. First and second generation older Mexican Americans and those functionally independent are more likely to prefer end-of-life ventilation support. Although depressive symptoms were inversely associated with ventilator use at the end of life, scores may more accurately reflect psychological stress associated with enduring the scenario. Further studies are needed to determine these factors' generalizability to the larger Mexican American community

    Quantitative trait loci of stripe rust resistance in wheat

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    KEY MESSAGE: Over 140 QTLs for resistance to stripe rust in wheat have been published and through mapping flanking markers on consensus maps, 49 chromosomal regions are identified. ABSTRACT: Over thirty publications during the last 10 years have identified more than 140 QTLs for stripe rust resistance in wheat. It is likely that many of these QTLs are identical genes that have been spread through plant breeding into diverse backgrounds through phenotypic selection under stripe rust epidemics. Allelism testing can be used to differentiate genes in similar locations but in different genetic backgrounds; however, this is problematic for QTL studies where multiple loci segregate from any one parent. This review utilizes consensus maps to illustrate important genomic regions that have had effects against stripe rust in wheat, and although this methodology cannot distinguish alleles from closely linked genes, it does highlight the extent of genetic diversity for this trait and identifies the most valuable loci and the parents possessing them for utilization in breeding programs. With the advent of cheaper, high throughput genotyping technologies, it is envisioned that there will be many more publications in the near future describing ever more QTLs. This review sets the scene for the coming influx of data and will quickly enable researchers to identify new loci in their given populations

    First report of Tomato torrado virus on weed hosts in Spain

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    Alfaro Fernández, AO.; Córdoba-Sellés, C.; Cebrián, M.; Herrera-Vásquez, J.; Sanchez Navarro, JA.; Juárez, M.; Espino, A.... (2088). First report of Tomato torrado virus on weed hosts in Spain. Plant Disease. 92(5):831-831. https://doi.org/10.1094/pdis-92-5-0831b83183192

    Case series of gallstone ileus: only enterolitotomy, one stage or two stage surgery?

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    Biliary ileus is a rare disease and an infrequent cause of intestinal obstruction, occasionally occurs in frail elderly patients and has a certain predilection for the female sex. The diagnosis is complex and requires a high clinical suspicion and complementary examinations such as abdominal radiography and contrasted abdominal tomography. Treatment should be individualized according to the clinical characteristics of each patient, with the alternatives being resolution only by enterolithotomy, one stage surgery and two stage surgery. We report 3 cases of biliary ileus, each one managed with a different surgical procedure. The decision was aimed at resolving the intestinal obstruction by enterolithotomy, and the definitive management was performed according to the clinical characteristics of each patient; however, there is no consensus or algorithm that recommends the ideal surgical technique. The recommended surgical procedure for the resolution of biliary ileus will be discussed

    Development of an Ergonomically – Designed Violin Chinrest Using Additive Manufacturing

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    A violin chinrest is used to ease the pain and prevent injuries of violinists. However, some of them experienced discomfort using normal chinrest. It causes injuries, irritations, and pains that affect the performance of violinists. In that problem, the researcher works toward a goal of not curing the problem but instead avoiding pain, injuries, and discomfort when playing it. A convenience sampling method was used in gathering anthropometric data. The study is limited to the ergonomically designed chin rest itself, which will only be installed at the standard violin size with a length of 60 cm. The designed chinrest is fitted only for the violinists of Jose De Piro Kabataan Orkestra. Three ergonomically designed violin chinrests were produced, which are: side-mounted, semi-centered, and fully centered. The researchers used a paired-samples t-test to compare the means in the results of testing between the normal chinrest and the ergonomically designed chinrest using additive manufacturing. The study concludes that the ergonomically designed violin chinrests using additive manufacturing are light-weight, less expensive, more comfortable to use, and lessen the pain of the violinists based on the overall mean compared to the normal violin chinrest in terms of side-mounted, semi-centered, and centered chinrest
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