Results 141 to 150 of about 39,044 (264)

Factores ambientales limitantes de la producción bovina.

open access: yes, 2018
La temperatura ambiental superior o inferior al rango óptimo para el desarrollo y producción del ganado afectan negativamente su comportamiento productivo. En situaciones de bajas temperaturas los animales pierden eficiencia en la transformación de unidades de alimento en unidades de producto ya que necesitan incrementar su energía de mantenimiento ...
openaire   +1 more source

Mixed‐methods systematic review exploring the associations underpinning active outdoor play with connection to nature and environmental stewardship

open access: yesPeople and Nature, Volume 8, Issue 6, Page 1705-1727, June 2026.
Abstract Active outdoor play has been positioned in the literature as an opportunity to address concerns over climate (in)action and the rising trend of disconnection from the outdoors and nature. The objective of this systematic review was to examine associations between active outdoor play and people's connection to nature and/or environmental ...
Louise de Lannoy   +10 more
wiley   +1 more source

Contrasting Osmotic Stress Responses and Provenance Effects on Seed Germination and Seedling Performance in Two Andean Species

open access: yesPlant-Environment Interactions, Volume 7, Issue 3, June 2026.
Oreocallis grandiflora was highly drought‐sensitive, whereas Salvia corrugata recovered and showed adaptive traits. Provenance effects were strong in O. grandiflora but weak in S. corrugata. These results reveal species‐ and provenance‐dependent responses to water limitation, highlighting the importance of selecting suitable species and seed sources ...
Claudia Patiño‐Uyaguari   +4 more
wiley   +1 more source

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

open access: yes, 1985
El crecimiento de las plantas y entre ellas el de los árboles, es controlado y afectado por la combinación de todos los factores ambientales.
Camacho Mora, Pablo
core  

Dificultades en los métodos de estudio de exposiciones ambientales y defectos del tubo neural

open access: yesSalud Pública de México, 1999
Objetivo. Discutir las actitudes en la evaluación de las exposiciones ambientales como factores de riesgo para defectos de riesgo del tubo neural, al tiempo que se presentan los principales factores estudiados hasta la fecha. Resultados. Las exposiciones
Borja-Aburto Víctor Hugo   +5 more
doaj  

Inter‐Annual Variation in Alpha and Beta Diversity of Benthic Macroinvertebrate Communities in Agricultural Ditches

open access: yesRiver Research and Applications, Volume 42, Issue 5, Page 997-1010, June 2026.
ABSTRACT Ditches are essential elements of the agricultural landscape because of their role as habitat or refuge for aquatic species, especially in homogenized and intensively cultivated areas. However, data on the biodiversity associated with agricultural ditches, and its variation over time, are underrepresented in ecological research.
Michela Rappocciolo   +5 more
wiley   +1 more source

Factores maternos, culturales y ambientales en desnutrición en niños menores de cinco años [PDF]

open access: yes
En esta investigación se identificó los factores maternos, culturales y ambientales que contribuyen a la desnutrición en niños de menos de cinco años. Estudio de tipo transversal de carácter descriptivo de diseño no experimental.
Garcia Contreras, Kathia Geraldine
core  

Light Meets Nature: Cellulose Cluster as a Natural Photoantimicrobial Agent

open access: yesSmall Structures, Volume 7, Issue 6, June 2026.
Cellulose derivatives exhibit cluster‐triggered emission, generating singlet oxygen through long‐lived excitonic states without conventional chromophores. This work reveals strong photoantimicrobial activity against Gram‐positive bacteria, transforming cellulose from an inactive excipient into an effective photodynamic agent.
Karina Dueñas‐Parro   +8 more
wiley   +1 more source

Estudio del comportamiento de diferentes especies pratenses frente a factores edáficos y de manejo. II. Otras plantas herbáceas y factores ambientales

open access: yes
[ES] Estudio del comportamiento de diferentes especies pratenses frente a factores edáficos y de manejo. II.
García Navarro, Ricardo   +3 more
core   +1 more source

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