863 resultados para Score metric


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Research points to the potential of youth sport as an avenue to support the growth of particular assets and outcomes. A recurring theme in this line of research is the need to train coaches to deliberately deliver themes relating to positive youth development (PYD) consistently in youth sport programs. The purpose of the study was to design and deliver a technology-based PYD program. Project SCORE! (www.projectscore.ca) is a series of 10 lessons to help coaches integrate PYD into sport. Four youth sport coaches completed the program in this first phase of this research and were interviewed. The goal of this study was to gain some insights from coaches as they completed the program. Positive comments about the program (i.e. ease of use, success of particular lessons, coach’s personal growth) and challenges regarding teaching positive skills to youth are discussed. These results helped to shape the program and make necessary changes so that it may be used for a larger research study. Other implications and future research directions are discussed.

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Objective
Scant evidence is available on the discordance between loneliness and social isolation among older adults. We aimed to investigate this discordance and any health implications that it may have.

Method
Using nationally representative datasets from ageing cohorts in Ireland (TILDA) and England (ELSA), we created a metric of discordance between loneliness and social isolation, to which we refer as Social Asymmetry. This metric was the categorised difference between standardised scores on a scale of loneliness and a scale of social isolation, giving categories of: Concordantly Lonely and Isolated, Discordant: Robust to Loneliness, or Discordant: Susceptible to Loneliness. We used regression and multilevel modelling to identify potential relationships between Social Asymmetry and cognitive outcomes.

Results
Social Asymmetry predicted cognitive outcomes cross-sectionally and at a two-year follow-up, such that Discordant: Robust to Loneliness individuals were superior performers, but we failed to find evidence for Social Asymmetry as a predictor of cognitive trajectory over time.

Conclusions
We present a new metric and preliminary evidence of a relationship with clinical outcomes. Further research validating this metric in different populations, and evaluating its relationship with other outcomes, is warranted.

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Resilience is widely accepted as a desirable system property for cyber-physical systems. However, there are no metrics that can be used to measure the resilience of cyber-physical systems (CPS) while the multi-dimensional nature of performance in these systems is considered. In this work, we present first results towards a resilience metric framework. The key contributions of this framework are threefold: First, it allows to evaluate resilience with respect to different performance indicators that are of interest. Second, complexities that are relevant to the performance indicators of interest, can be intentionally abstracted. Third and final, it supports the identification of reasons for good or bad resilience to improve system design.

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The 2015 FRVT gender classification (GC) report evidences the problems that current approaches tackle in situations with large variations in pose, illumination, background and facial expression. The report suggests that both commercial and research solutions are hardly able to reach an accuracy over 90% for The Images of Groups dataset, a proven scenario exhibiting unrestricted or in the wild conditions. In this paper, we focus on this challenging dataset, stepping forward in GC performance by observing: 1) recent literature results combining multiple local descriptors, and 2) the psychophysics evidences of the greater importance of the ocular and mouth areas to solve this task...

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INTRODUCTION: The ProACS risk score is an early and simple risk stratification score developed for all-cause in-hospital mortality in acute coronary syndromes (ACS) from a Portuguese nationwide ACS registry. Our center only recently participated in the registry and was not included in the cohort used for developing the score. Our objective was to perform an external validation of this risk score for short- and long-term follow-up. METHODS: Consecutive patients admitted to our center with ACS were included. Demographic and admission characteristics, as well as treatment and outcome data were collected. The ProACS risk score variables are age (≥72 years), systolic blood pressure (≤116 mmHg), Killip class (2/3 or 4) and ST-segment elevation. We calculated ProACS, Global Registry of Acute Coronary Events (GRACE) and Canada Acute Coronary Syndrome risk score (C-ACS) risk scores for each patient. RESULTS: A total of 3170 patients were included, with a mean age of 64±13 years, 62% with ST-segment elevation myocardial infarction. All-cause in-hospital mortality was 5.7% and 10.3% at one-year follow-up. The ProACS risk score showed good discriminative ability for all considered outcomes (area under the receiver operating characteristic curve >0.75) and a good fit, similar to C-ACS, but lower than the GRACE risk score and slightly lower than in the original development cohort. The ProACS risk score provided good differentiation between patients at low, intermediate and high mortality risk in both short- and long-term follow-up (p<0.001 for all comparisons). CONCLUSIONS: The ProACS score is valid in external cohorts for risk stratification for ACS. It can be applied very early, at the first medical contact, but should subsequently be complemented by the GRACE risk score.

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Previous research found personality test scores to be inflated on average among individuals who were motivated to present themselves in a desirable fashion in high stakes situations, such as during the employee selection process. One apparently effective way to reduce the undesirable test score inflation in such situations was to warn participants against faking. This research set out to investigate whether warning against faking would indeed affect personality test scores in the theoretically expected fashion. Contrary to expectations, the results did not support the hypothesized causal chain. Results across three studies show that while a warning may lower test scores in participants motivated to respond desirably (i.e., to fake), the effect of warning on test scores was not fully mediated by: a reduction in motivation to do well and self-reports of exaggerated responses in the personality test. Theoretical and practical implications are discussed.

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Se realizó un estudio trasversal en una población de 306 pacientes con diagnóstico de abdomen agudo no traumático, validación de la prueba diagnóstica y factores asociados en 129 con diagnóstico de apendicitis aguda; el grupo de estudio estuvo conformado por pacientes de edad comprendida entre los 16 y 75 años. Los datos fueron recolectados, por los autores, en un formulario estructurado y analizados con el software SPSS. Resultados: la prevalencia de apendicitis aguda, en la población de 306 pacientes, fue del 42(IC 9533.5-50.5). En los 129 con diagnóstico de apendicitis aguda, el Score dio positivo en el 92.2de los casos comparado con el resultado de anatomía patológica. La asociación entre apendicitis aguda con el sexo dio una razón de prevalencia (PR) de 0.98 IC 950.89-1.08), p=1.00; con el antecedente familiar de apendicitis una RP 0.94 (IC 950.78-1.14) p=0.36 y con alimentación de frutas con semilla RP 1.088 (IC 951.03-1.15) p=1.000 (test exacto de Fisher). La sensibilidad para la prueba diagnóstica, score para apendicitis, fue del 94.96, la especificidad del 60, el valor predictivo positivo del 96.6, el valor predictivo negativo del 50y el índice de Kappa del 0.5 con una p=0.000. Conclusiones: la prevalencia de apendicitis fue del 42; se encontró asociación significativa con alimentación con frutas con semilla. La sensibilidad del score para apendicitis fue del 94.96y la especificidad del 60

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Growth-curves are an important tool for evaluating the anthropometric development in pediatrics. The different growth-curves available are based in different populations, what leads to different cut-offs. Pediatric obesity tracks into adulthood and is associated with increased cardiovascular risk. The accurate assessment of a child nutritional status using growth-curves can indicate individuals that are either obese or in risk of becoming obese, allowing an early intervention. Moreover, the association between the data obtained from growth-curves with specific metabolic risk factors further highlights the importance of these charts. This study aimed to evaluate the associations between body mass index z-score (BMIzsc), determined using the growth-curves from the Centre for Disease Control and Prevention (CDC) and from the World Health Organization (WHO), with cardiovascular risk factors, represented here by metabolic syndrome (MS) and insulin resistance (IR) related parameters. The study involved 246 obese adolescents (10-18 years, 122 females). MS was defined according to the International Diabetes Federation. IR was considered for HOMA-IR greater than 2.5.

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This is a project of the School of Library, Documentation and Information of the National University, is performed to support the initiative of UNESCO to build the Memory of the World (UNESCO, 1995) and to help provide universal access to documentation. To this end, the School of Library Science students has promoted the realization of final graduation work on documentary control of domestic production. This project has the following objectives:Objectives1. Conduct mapping national documentary through the identification, analysis, organization and access to documentary heritage of Costa Rica, to contribute to the Memory of the World.2. Perform bibliometric analysis of documentary records contained in the integrated databases.This project seeks to bring undergraduate students graduating from the school, in making final graduation work on document control. Students have the opportunity to make final graduation work on the documentary production of Costa Rica on a specific theme or on a country's geographical area.Desk audits aimed at identifying the document using access points and indicate its contents to allow recovery by the user.The result is the production of a new document, other than the original, a secondary document: the bibliography. The records in the database each control documentation completed work will be integrated into a single database to be placed on the website of EBDI, for consultation of researchers and interested users.

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In this contribution, we propose a first general definition of rank-metric convolutional codes for multi-shot network coding. To this aim, we introduce a suitable concept of distance and we establish a generalized Singleton bound for this class of codes.

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The aim of this paper is to provide a comprehensive study of some linear non-local diffusion problems in metric measure spaces. These include, for example, open subsets in ℝN, graphs, manifolds, multi-structures and some fractal sets. For this, we study regularity, compactness, positivity and the spectrum of the stationary non-local operator. We then study the solutions of linear evolution non-local diffusion problems, with emphasis on similarities and differences with the standard heat equation in smooth domains. In particular, we prove weak and strong maximum principles and describe the asymptotic behaviour using spectral methods.

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Determinar la etiología de las neumonías para decidir su tratamiento, no es simple, sin una prueba confirmatoria los médicos se apoyan de evaluaciones clínicas, radiológicas, de laboratorio y edad de pacientes, es por ello, que se estudió una regla de predicción clínica que combinó varios elementos que incrementaron la capacidad diagnóstica de dicha patología. Objetivo: Se evaluó la capacidad diagnóstica de una escala de puntaje para predecir etiología en niños con neumonía (Bacterial Pneumonia Score), y otras variables no incluidas en el score que resultaron asociadas a las neumonías. Estudio descriptivo, transversal, retrospectivo de evaluación de prueba diagnóstica, en Hospital Benjamin Bloom, desde mayo a diciembre 2009, incluyendo ≥1 mes a 8 años de edad, hospitalizados por neumonía, con datos de temperatura, radiografía torácica, hemograma, hisopado nasofaríngeo, se excluyeron los pacientes que necesitaron cuidados en UCI o intermedios, con patologías respiratorias crónicas, cuerpo extraño o aspiración, enfermedades oncológicas, inmunodeficiencias o neumonía con radiografía 8 semanas previo al ingreso en estudio. Resultados: Se incluyeron 275 pacientes, de ellos 120 diagnosticados con patología viral y 180 con etiología bacteriana, se registraron datos del expediente clínico a través de un cuestionario que contempló variables del BPS además de otras que resultaron estadísticamente asociadas por Chi cuadrado. Según el score ≥ 4 puntos se calculó una sensibilidad de 79% (IC 95%: 75-82), especificidad de 91% (IC 95%: 85-96), valor predictivo positivo de 94% (IC 95% 90-97) y valor predictivo negativo de 69% (IC %: 61-78).y una eficacia diagnostica bajo curva ROC de 0.88. Conclusión: El BPS resultó tener buena capacidad para identificar la mayoría de pacientes con neumonía acteriana, pero se mostró más preciso para descartarla.

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A osteoporose é uma patologia esquelética sistémica, caracterizada pela diminuição da massa óssea, provocando uma diminuição da resistência do osso e, consequentemente um aumento do risco de fraturas no indivíduo. Neste estudo pretende-se prever o valor que permite determinar se um paciente tem ou não osteoporose, denominado de T-Score. Normalmente este valor é obtido através de um exame de densitometria óssea, a absorciometria de raios-X de dupla energia (DEXA). Além disso, pretendeu-se converter os valores de T-Score e a densidade mineral óssea (DMO) (ou bone mineral density - BMD) para os vários equipamentos existentes para este exame. Para finalizar, criou-se um documento PDF com as previsões e as conversões alcançadas.