Results 121 to 130 of about 32,656 (251)
Semigrupos numéricos y sus lagunas [PDF]
, 2019 El objetivo de este trabajo es estudiar los semigrupos numéricos, que son una clase especial de semigrupos, y su conjunto de lagunas. Un semigrupo numérico es un subconjunto de N (el conjunto de los enteros positivos con el 0) cerrado por suma y ...
Martínez Durán, Sergio
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El problema de las lagunas en el derecho
Estudios de Derecho, 1962 Sumario: El problema. - Las soluciones. - La terminología. – Estado actual de la cuestión - Kelsen. - Cossio. - Acerca de la interpretación. -La obligación de juzgar. – Sobre Ia naturaleza jurídica del principio de la plenitud.
Jorge Reinaldo Vanossi
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Environmental Toxicology, EarlyView.ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves +8 more
wiley +1 more source
Environmental Toxicology, EarlyView.ABSTRACT Endocrine‐disrupting chemicals (EDCs), such as 17α‐ethinylestradiol (EE2), have raised concerns about their potential effects on aquatic organisms, particularly during early developmental stages. In this context, the study of behavioral disruption has gained considerable attention, as it may have consequences on individual fitness and ...
Soloperto Sofia +6 more
wiley +1 more source
, 1931 Telegrama de León Lagunas, alumno de la Escuela Central Agrícola de Tenancingo, al Gral. PEC.
FIDEICOMISO ARCHIVOS PLUTARCO ELÍAS CALLES Y FERNANDO TORREBLANCA
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Environmental Toxicology, EarlyView.ABSTRACT This study assessed the contamination levels, bioaccessibility, and potential health risks of As, Cd, Cu, Pb, and Zn in sediments from three dry riverbeds (El Beal‐EB, Las Matildes‐LM, and Ponce‐PN) impacted by historical mining activities in the Cartagena‐La Unión Mining District.
José Gregorio Cuevas +5 more
wiley +1 more source
Importance of woody patches and vegetation heterogeneity in Texas tortoise microhabitat use
Wildlife Biology, EarlyView.Microhabitat sites provide important resources and thermal conditions to reptile species that can vary spatially and temporally. This study assessed Texas tortoise Gopherus berlandieri microhabitat use and its relationship with carapace temperature during their active (April–October) and inactive seasons (November–March) between January 2023 and ...
Camryn M. Kiel +6 more
wiley +1 more source
Inventario Nacional de Glaciares y Lagunas
, 2016 La Unidad de Glaciología y Recursos Hídricos registra y evidencia los cambios de las variaciones de las coberturas de glaciares y lagunas en las 19 cordilleras nevadas divididas en 3 sectores: Norte, Centro y Sur.
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Factors influencing wintering turfgrass field use in Atlantic brant
Wildlife Biology, EarlyView.Atlantic brant Branta bernicla hrota increasingly use turfgrass fields, such as baseball fields and golf courses, throughout their wintering range. Most studies have focused on their primary food source, submerged aquatic vegetation, while studies of other goose species worldwide have examined field use in different contexts, including agricultural ...
David J. Weber +3 more
wiley +1 more source
Herbivore and mesocarnivore carcasses trigger divergent short‐term changes in soil properties
Journal of Animal Ecology, EarlyView.Scavengers reshape nutrient cycles in soils under carrion. Compared to herbivore carcasses, smaller but longer‐lasting carnivore remains boost nutrient levels and microbial activity in dry soils. Abstract Animal corpses act as pulses of organic matter (OM) and serve a key zoogeochemical role by providing localized nutrient inputs to soils and thereby ...
Adrián Colino‐Barea +15 more
wiley +1 more source