12 research outputs found

    Estudio longitudinal de las concepciones de estudiantes de Maestro de Educación Primaria sobre la enseñanza de las Ciencias

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    El presente trabajo supone un seguimiento de las concepciones de los estudiantes de Maestro de Educación Primaria sobre la enseñanza de las ciencias a lo largo de su formación inicial en la Facultad de Educación de la Universidad de Extremadura. La metodología parte de una pregunta abierta a los alumnos de primero, para analizar sus concepciones. Sobre esa base, se repite en tercero con el mismo método de pregunta abierta a un subgrupo del alumnado. Otro subgrupo responde sobre un cuestionario basado en sus propias afirmaciones de primero y un tercer subgrupo a través del mismo cuestionario valora sus afirmaciones. Las conclusiones muestran que se produce una evolución con cambios parciales en sus concepciones.This study supposes a monitoring of the Primary training teacher students in the Faculty of Education in the University of Extremadura about their science teaching conception through their initial training. The results show that there is an evolution in their conception with partial changes.peerReviewe

    Predictive Power of the "Trigger Tool" for the detection of adverse events in general surgery: a multicenter observational validation study

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    Background In spite of the global implementation of standardized surgical safety checklists and evidence-based practices, general surgery remains associated with a high residual risk of preventable perioperative complications and adverse events. This study was designed to validate the hypothesis that a new “Trigger Tool” represents a sensitive predictor of adverse events in general surgery. Methods An observational multicenter validation study was performed among 31 hospitals in Spain. The previously described “Trigger Tool” based on 40 specific triggers was applied to validate the predictive power of predicting adverse events in the perioperative care of surgical patients. A prediction model was used by means of a binary logistic regression analysis. Results The prevalence of adverse events among a total of 1,132 surgical cases included in this study was 31.53%. The “Trigger Tool” had a sensitivity and specificity of 86.27% and 79.55% respectively for predicting these adverse events. A total of 12 selected triggers of overall 40 triggers were identified for optimizing the predictive power of the “Trigger Tool”. Conclusions The “Trigger Tool” has a high predictive capacity for predicting adverse events in surgical procedures. We recommend a revision of the original 40 triggers to 12 selected triggers to optimize the predictive power of this tool, which will have to be validated in future studies

    Treatment with tocilizumab or corticosteroids for COVID-19 patients with hyperinflammatory state: a multicentre cohort study (SAM-COVID-19)

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    Objectives: The objective of this study was to estimate the association between tocilizumab or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 (COVID-19) with a hyperinflammatory state according to clinical and laboratory parameters. Methods: A cohort study was performed in 60 Spanish hospitals including 778 patients with COVID-19 and clinical and laboratory data indicative of a hyperinflammatory state. Treatment was mainly with tocilizumab, an intermediate-high dose of corticosteroids (IHDC), a pulse dose of corticosteroids (PDC), combination therapy, or no treatment. Primary outcome was intubation or death; follow-up was 21 days. Propensity score-adjusted estimations using Cox regression (logistic regression if needed) were calculated. Propensity scores were used as confounders, matching variables and for the inverse probability of treatment weights (IPTWs). Results: In all, 88, 117, 78 and 151 patients treated with tocilizumab, IHDC, PDC, and combination therapy, respectively, were compared with 344 untreated patients. The primary endpoint occurred in 10 (11.4%), 27 (23.1%), 12 (15.4%), 40 (25.6%) and 69 (21.1%), respectively. The IPTW-based hazard ratios (odds ratio for combination therapy) for the primary endpoint were 0.32 (95%CI 0.22-0.47; p < 0.001) for tocilizumab, 0.82 (0.71-1.30; p 0.82) for IHDC, 0.61 (0.43-0.86; p 0.006) for PDC, and 1.17 (0.86-1.58; p 0.30) for combination therapy. Other applications of the propensity score provided similar results, but were not significant for PDC. Tocilizumab was also associated with lower hazard of death alone in IPTW analysis (0.07; 0.02-0.17; p < 0.001). Conclusions: Tocilizumab might be useful in COVID-19 patients with a hyperinflammatory state and should be prioritized for randomized trials in this situatio

    Estudio sociológico del Profesorado extremeño de primaria y secundaria. Fernando Gonzålez Pozuelo

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    Es una reseña de la obra: Fernando Gonzålez Pozuelo. Estudio sociológico del Profesorado extremeño de primaria y secundaria. Catedråtico de Sociología de la U.EX., 316 p. ISBN: 81-96212-31-9It is a review of the work: Fernando Gonzålez Pozuelo. Estudio sociológico del Profesorado extremeño de primaria y secundaria. Catedråtico de Sociología de la U.EX., 316 p. ISBN: 81-96212-31-

    Estudio longitudinal de las concepciones de estudiantes de Maestro de Educación Primaria sobre la enseñanza de las Ciencias

    No full text
    El presente trabajo supone un seguimiento de las concepciones de los estudiantes de Maestro de Educación Primaria sobre la enseñanza de las ciencias a lo largo de su formación inicial en la Facultad de Educación de la Universidad de Extremadura. La metodología parte de una pregunta abierta a los alumnos de primero, para analizar sus concepciones. Sobre esa base, se repite en tercero con el mismo método de pregunta abierta a un subgrupo del alumnado. Otro subgrupo responde sobre un cuestionario basado en sus propias afirmaciones de primero y un tercer subgrupo a través del mismo cuestionario valora sus afirmaciones. Las conclusiones muestran que se produce una evolución con cambios parciales en sus concepciones.This study supposes a monitoring of the Primary training teacher students in the Faculty of Education in the University of Extremadura about their science teaching conception through their initial training. The results show that there is an evolution in their conception with partial changes.peerReviewe

    Discovering HIV related information by means of association rules and machine learning

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    Acquired immunodeficiency syndrome (AIDS) is still one of the main health problems worldwide. It is therefore essential to keep making progress in improving the prognosis and quality of life of affected patients. One way to advance along this pathway is to uncover connections between other disorders associated with HIV/AIDS-so that they can be anticipated and possibly mitigated. We propose to achieve this by using Association Rules (ARs). They allow us to represent the dependencies between a number of diseases and other specific diseases. However, classical techniques systematically generate every AR meeting some minimal conditions on data frequency, hence generating a vast amount of uninteresting ARs, which need to be filtered out. The lack of manually annotated ARs has favored unsupervised filtering, even though they produce limited results. In this paper, we propose a semi-supervised system, able to identify relevant ARs among HIV-related diseases with a minimal amount of annotated training data. Our system has been able to extract a good number of relationships between HIV-related diseases that have been previously detected in the literature but are scattered and are often little known. Furthermore, a number of plausible new relationships have shown up which deserve further investigation by qualified medical experts

    GuĂ­as de prĂĄctica clĂ­nica para la evaluaciĂłn y tratamiento de la osteoporosis asociada a enfermedades endocrinas y nutricionales

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    Evaluation of a quality improvement intervention to reduce anastomotic leak following right colectomy (EAGLE): pragmatic, batched stepped-wedge, cluster-randomized trial in 64 countries

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    Background Anastomotic leak affects 8 per cent of patients after right colectomy with a 10-fold increased risk of postoperative death. The EAGLE study aimed to develop and test whether an international, standardized quality improvement intervention could reduce anastomotic leaks. Methods The internationally intended protocol, iteratively co-developed by a multistage Delphi process, comprised an online educational module introducing risk stratification, an intraoperative checklist, and harmonized surgical techniques. Clusters (hospital teams) were randomized to one of three arms with varied sequences of intervention/data collection by a derived stepped-wedge batch design (at least 18 hospital teams per batch). Patients were blinded to the study allocation. Low- and middle-income country enrolment was encouraged. The primary outcome (assessed by intention to treat) was anastomotic leak rate, and subgroup analyses by module completion (at least 80 per cent of surgeons, high engagement; less than 50 per cent, low engagement) were preplanned. Results A total 355 hospital teams registered, with 332 from 64 countries (39.2 per cent low and middle income) included in the final analysis. The online modules were completed by half of the surgeons (2143 of 4411). The primary analysis included 3039 of the 3268 patients recruited (206 patients had no anastomosis and 23 were lost to follow-up), with anastomotic leaks arising before and after the intervention in 10.1 and 9.6 per cent respectively (adjusted OR 0.87, 95 per cent c.i. 0.59 to 1.30; P = 0.498). The proportion of surgeons completing the educational modules was an influence: the leak rate decreased from 12.2 per cent (61 of 500) before intervention to 5.1 per cent (24 of 473) after intervention in high-engagement centres (adjusted OR 0.36, 0.20 to 0.64; P &lt; 0.001), but this was not observed in low-engagement hospitals (8.3 per cent (59 of 714) and 13.8 per cent (61 of 443) respectively; adjusted OR 2.09, 1.31 to 3.31). Conclusion Completion of globally available digital training by engaged teams can alter anastomotic leak rates. Registration number: NCT04270721 (http://www.clinicaltrials.gov)
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