Results 41 to 50 of about 3,876 (230)

Big Bird: A global dataset of birds in drone imagery annotated to species level

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Drones are a valuable tool for surveying birds, but manually detecting and identifying birds in drone images is costly. We assembled a diverse dataset of 23 865 images of birds captured with 21 different drones across 11 countries. We labelled 4824 of these images, detailing the location, species, posture category, age category, and sex of 49 990 birds
Joshua P. Wilson   +19 more
wiley   +1 more source

Psicobiología de la agresión y la violencia

open access: yesRevista Iberoamericana de Psicología, 2017
El presente trabajo expone la revisión y análisis de distintas investigaciones realizadas por múltiples autores quienes han aportado valiosos descubrimientos para la comprensión de las conductas agresivas y los comportamientos violentos de los seres ...
Esperanza Sepulveda Rojas, Mg.   +1 more
doaj   +1 more source

Factores ambientales que despiertan enfermedades silenciosas

open access: yes, 2020
A research project by the Center for the Study of Autoimmune Diseases of the Universidad de Rosario (CREA) showed that the surroundings in which we live and exposure to environmental factors cause alterations in the immune system and trigger diseases like lupus, rheumatoid arthritis, type 1 diabetes mellitus or multiple sclerosis, among others.
Ramírez, Carolina   +2 more
openaire   +1 more source

Factores ambientales y síndrome cardiopulmonar por virus hanta en Chile

open access: yesRevista de Salud Pública, 2020
Objetivo Evaluar la relación entre la temperatura ambiente, humedad relativa y el material particulado ambiental 2,5 con el número de casos de síndrome cardiopulmonar por virus hanta en Chile durante el periodo 2015-2017.Métodos Estudio observacional transversal en 197 casos de síndrome cardiopulmonar por virus hanta notificados y confirmados ...
Elizabeth Contreras-Matamala   +1 more
openaire   +4 more sources

Outline of a Washing Treatment to Improve Electric Arc Furnace Slag Environmental Behavior

open access: yessteel research international, EarlyView.
This study evaluates a water‐washing treatment for electric arc furnace slag to reduce the leaching of hazardous elements (Cr, Ba, Mo, and V), enabling its reuse. The process effectively decreases leachate concentrations. Using the treated slag as a substitute aggregate in concrete reduces greenhouse gases emissions by 42.5% compared to landfilling ...
Luca Testini   +4 more
wiley   +1 more source

Hiperreactividad bronquial en relación con factores ambientales [PDF]

open access: yes, 2015
UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias de la Salud::Instituto de Investigaciones en Salud (INISA)
Salas Chaves, Pilar   +2 more
openaire  

Quantification of steroid hormones in free‐ranging Apennine wolf Canis lupus italicus hair samples collected post‐mortem

open access: yesWildlife Biology, EarlyView.
After decades of dramatic reductions in their populations, Italian wolves have begun recolonizing parts of their historic range. This growth in populations can lead to potential conflicts with human activities, which remain the main cause of wolf mortality.
Ilaria Troisio   +8 more
wiley   +1 more source

Factores ambientales y el crecimiento de 5 especies forestales en Costa Rica

open access: yesTecnología en Marcha, 2019
El crecimiento de las plantas y entre ellas el de los árboles, es controlado y afectado por la combinación de todos los factores ambientales. Sin embargo, algunos de estos factores ejercen una mayor influencia que otros.
Pablo Camacho-Mora
doaj   +1 more source

Phenology of migrating game birds in Italy based on citizen science data

open access: yesWildlife Biology, EarlyView.
Studying the timing of the seasonal movements of migratory birds, known as migration phenology, is crucial for managing and conserving migratory bird populations. This is particularly important for migratory game bird populations in Europe because, according to the EU, migratory birds should not be hunted during their breeding season or during return ...
Susan E. McKinlay   +10 more
wiley   +1 more source

Psycho-Social-Environmental Factors Associated with Work-Related Stress in Chilean Teachers in Rural and Urban Areas

open access: yesPropósitos y Representaciones, 2019
The aim of this study was to investigate the perceptions that teachers in urban and rural schools have of the psycho-social-environmental factors that trigger teacher work stress.
Juan Rubio-González   +4 more
doaj   +1 more source

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