10 research outputs found

    A new wildland fire danger index for a Mediterranean region and some validation aspects

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    Wildland fires are the main cause of tree mortality in Mediterranean Europe and a major threat to Spanish forests. This paper focuses on the design and validation of a new wildland fire index especially adapted to a Mediterranean Spanish region. The index considers ignition and spread danger components. Indicators of natural and human ignition agents, historical occurrence, fuel conditions and fire spread make up the hierarchical structure of the index. Multi-criteria methods were used to incorporate experts¿ opinion in the process of weighting the indicators and to carry out the aggregation of components into the final index, which is used to map the probability of daily fire occurrence on a 0.5-km grid. Generalised estimating equation models, which account for possible correlated responses, were used to validate the index, accommodating its values onto a larger scale because historical records of daily fire occurrence, which constitute the dependent variable, are referred to cells on a 10-km grid. Validation results showed good index performance, good fit of the logistic model and acceptable discrimination power. Therefore, the index will improve the ability of fire prevention services in daily allocation of resources.The authors acknowledge the support received from the Ministry of Science and Innovation through the research project Modelling and Optimisation Techniques for a Sustainable Development, Ref. EC02008-05895-C02-01/ECON.Vicente López, FJD.; Crespo Abril, F. (2012). A new wildland fire danger index for a Mediterranean region and some validation aspects. 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    Prevalence of behavioral risk factors associated with non-communicable diseases in colombian hikers

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    La inactividad f?sica, el consumo perjudicial de alcohol, el tabaquismo y una dieta poco saludable son factores de riesgo comportamentales que aumentan el riesgo de padecer enfermedades no transmisibles. El Senderismo es un tipo de actividad f?sica en la naturaleza y su pr?ctica evidencia beneficios para la salud. El objetivo del estudio fue analizar las prevalencias de factores de riesgo comportamentales asociados a enfermedades no transmisibles en senderistas de Colombia. La metodolog?a fue un estudio transversal anal?tico realizado en 118 senderistas de Colombia. Las variables fueron analizadas en medidas de tendencia central o frecuencias seg?n su naturaleza. Se utilizaron las pruebas exacta de Fischer, T- de Student y U de Mann-Whitnney para determinar una diferencia estad?sticamente significativa seg?n el sexo. El nivel de significancia fue de p ? 0,05. Para la recolecci?n de la informaci?n fue implementado el Cuestionario B?sico del Instrumento STEPs. Entre los resultados se presentan: La prevalencia de inactividad f?sica fue 0%. Los hombres reportaron una mediana superior de minutos de actividad f?sica a la semana que las mujeres (p=0,003). Las prevalencias tabaquismo y consumo perjudicial de alcohol fueron del 10,17% y 11,86% respectivamente. La prevalencia de consumo perjudicial de alcohol fue mayor en hombres que en mujeres (p=0,034). La mediana de tragos/mes de los hombres fue superior a la de las mujeres (p=0,004). El 88,98% de los participantes report? bajo consumo de frutas y verduras. La media del total de factores de riesgo comportamentales de los senderistas participantes fue de 1,11 (DE:0,05), esta cifra fue mayor en hombres que en mujeres (p=0,048). Entre las conclusiones est?n que la totalidad de los participantes son f?sicamente activos, una d?cima parte de los senderistas report? consumo regular de tabaco y consumo perjudicial de alcohol, y la mayor parte de los senderistas presenta un bajo consumo de frutas y verduras. Los hombres presentan mayores niveles de actividad f?sica y consumo perjudicial de alcohol que las mujeres.Physical inactivity, harmful consumption of alcohol, tobacco use, and an unhealthy diet are behavioral risk factors that increase the risk of suffering non-communicable diseases. Hiking is a type of physical activity in nature, its practice provides benefits for health. The objective of the study was to analyze the prevalence of behavioral risk factors associated with noncommunicable diseases in Colombian hikers. The methodology was a study Analytical cross-sectional study carried out on 118 Colombian hikers. Variables were analyzed using central tendency measures or frequencies according to their nature. Fischer exact, T-student, and U Mann-Whitney tests were implemented to establish a statistical difference according to sex. The significant level was p ? 0.05. The Noncommunicable Disease Risk Factor Surveillance from the World Health Organization was applied to collect data. The results include: prevalence of physical inactivity was 0%. Men reported a higher median of physical activity minutes per week than women (p=0,003). Prevalence of Tobacco use and harmful consumption of alcohol were 10,17% and 11,86% respectively. The prevalence of harmful consumption of alcohol was superior in men than in women (p=0.034). The median of drinks per month for men was higher than for women (p=0,004). 88,98% of participants reported a low intake of fruits and vegetables. The total mean of behavioral risk factors of hikers was 1,11 (DE:0,05), this number was superior in men than in women (p=0,048). Among the conclusions are that all participants are physically active, one-tenth of hikers reported tobacco use and harmful consumption of alcohol, and most hikers show low intake of fruits and vegetables. Men evidenced higher levels of physical activity and harmful consumption of alcohol than women

    Metadata record for: COVIDiSTRESS Global Survey dataset on psychological and behavioural consequences of the COVID-19 outbreak

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    This dataset contains key characteristics about the data described in the Data Descriptor COVIDiSTRESS Global Survey dataset on psychological and behavioural consequences of the COVID-19 outbreak. Contents: 1. human readable metadata summary table in CSV format 2. machine readable metadata file in JSON forma
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