Results 31 to 40 of about 20,361 (219)
Revista Peruana de Ciencias de la Salud, 2020 Objetivo. Determinar los factores de riesgo para el primer episodio de accidente cerebrovascular (ACV) encefálico en personas que habitan a diferentes niveles de altitud. Métodos.
Jose Antonio Romero Cordova +1 more
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People and Nature, Volume 8, Issue 8, Page 2847-2865, August 2026.Abstract Mountain social–ecological systems encompass steep ecological gradients and diverse cultural practices, yet the relative roles of these factors in shaping mountain landscapes remain underexplored. In particular, the knowledge and practices of women in coproducing biocultural landscapes are often invisible in the academic literature. In the Ait
Meryem Aakairi +6 more
wiley +1 more source
The Journal of Physiology, 1967 1. Six international middle‐distance runners were investigated during 4 weeks in England and during a similar period in Mexico City (2270 m (7450 ft.))2. In 3‐mile (4828 m) time trials at 2270 m the increase in time taken by four subjects compared with sea level was 8·5% on the 4th day and 5·7% on the 29th day.
openaire +2 more sources
On the Circular Altitude of Graphs [PDF]
Bulletin of the Iranian Mathematical Society, 2020 Peter Cameron introduced the concept of the circular altitude of graphs; a parameter which was shown by Bamberg et al. that provides a lower bound on the circular chromatic number. In this note, we investigate this parameter and show that the circular altitude of a graph is equal to the maximum of circular altitudes of its blocks.
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Influencia de la Altitud en Parámetros Fisiológicos Generales y Heméticos de Bovinos Holstein. [PDF]
, 1992 Con el objeto de evaluar el efecto de la altitud sobre algunos parámetros fisiológicos generales y hemáticos de los bovinos Holstein, ubicados en dos zonas de vida del departamento de Antioquia, se determinaron la frecuencia cardíaca, frecuencia ...
Oquendo López Ramón +5 more
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Applications in Plant Sciences, Volume 14, Issue 4, July-August 2026.Abstract Premise Applied ecology can significantly influence policy decisions on environmental issues. Therefore, research in this field should be as transparent and reproducible as possible. Existing expertise from a broad range of disciplines should also be integrated into ecological research to allow researchers to maximize understanding of complex ...
Kailin Weitkämper +5 more
wiley +1 more source
Journal of Ecology, Volume 114, Issue 7, July 2026.Forests are complex, multilayered systems in which canopy cover strongly influences understorey microclimates. Here, we show that the temperature‐buffering effect of the forest canopy affects tree regeneration differently among species along an elevation gradient in the French Pyrenees.
Benjamin Roux +4 more
wiley +1 more source
Cambios hematológicos en atletas que entrenan en alta altitud y residen en altitud moderada.
, 2017 El entrenamiento deportivo en pruebas de resistencia, ha sido tema de discusión y controversia por los métodos empleados en altitud. Varios estudios han demostrado las adaptaciones hematológicas, incremento de la hemoglobina (Hb) y del hematocrito (Hcto)
Elkin Losada-Celis +3 more
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Bombarderos en picado (1941): un modelo de estudio de la fisiología de la aviación
Revista de Medicina y Cine / Journal of Medicine and Movies, 2020 Este artículo sirve para iniciarse en las bases docentes de la actual fisiología de la aviación, cuyo origen se remonta al comienzo de la Segunda Guerra Mundial.
Germán Domínguez-Vías
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Diverging Effects of Elevation on Species Richness of Freshwater Organisms: A Global Meta‐Analysis
Freshwater Biology, Volume 71, Issue 7, July 2026.ABSTRACT A primary ecological challenge is to disentangle how abiotic factors affect species richness using measured environmental variables in addition to broad proxies such as elevation. Considering direct ecogeographical gradients, such as climate harshness, it is therefore essential to understand whether these underlying abiotic factors might ...
Natalia Ferreira +19 more
wiley +1 more source