Results 41 to 50 of about 83,425 (187)

Demanda de dinero y tipos de interés : un estudio teórico [PDF]

open access: yes, 1998
El presente trabajo consta de tres bloques diferenciados: En primer lugar, sirviéndonos del enfoque de demanda de dinero por motivo transacción construimos un modelo teórico de determinación de las demandas de activos.
Aznar Grasa, Antonio   +1 more
core   +1 more source

An experimental approach to assess the combined effects of multiple stressors on a large vertebrate species

open access: yesConservation Biology, EarlyView.
Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta   +24 more
wiley   +1 more source

Influencia del ambiente edáfico y la fertilización nitrogenada, en cultivares de trigo diferenciados por su potencial

open access: yesSemiárida, 2020
El objetivo del trabajo fue evaluar el efecto del ambiente edáfico sobre el rendimiento y la respuesta de tres variedades de trigo a la fertilización nitrogenada a la siembra (dosis 0, 40 y 120 Kg N.ha-1).
A. Quiroga   +4 more
doaj  

Constructed value of information with iterative scoring and parametric uncertainty to identify management‐relevant research priorities for a declining raptor species

open access: yesConservation Biology, EarlyView.
Abstract Constructed value of information (CVoI) is an expert elicitation decision‐analytic tool used to prioritize sources of uncertainty based on their potential to improve decision outcomes if resolved. Despite increased application of CVoI, the robustness of CVoI prioritization of sources of uncertainty relative to differences in expert elicitation
Kristin P. Davis   +7 more
wiley   +1 more source

Reconsidering the role of introduced species in the climate‐affected and highly invaded eastern Mediterranean

open access: yesConservation Biology, EarlyView.
Abstract Bioinvasions are considered mostly as a biodiversity and conservation hazard, but in specific situations, introduced species can bring ecological or socioeconomic benefits. We assessed the social–ecological role of marine introduced species in the eastern Mediterranean Sea—a global hotspot of bioinvasions and extirpations—and their potential ...
Stelios Katsanevakis   +7 more
wiley   +1 more source

Efecto de una dosis de lidocaína y ketamina sobre el consumo intraoperatorio de opioides en pacientes sometidas a cirugía ginecológica electiva bajo anestesia general. Estudio piloto aleatorizado y controlado con placebo [PDF]

open access: yes, 2016
Background and goal of study: there is evidence that perioperative intravenous ketamine and lidocaine reduce postoperative pain, postoperative opioids consumption, shortens hospital stay and accelerates intestinal function recovery.
Vilches Arenas, Ángel
core  

Tracking the impact of bottom trawling on benthic habitat status

open access: yesConservation Biology, EarlyView.
Abstract Bottom trawling is the most widespread physical disturbance to marine benthic habitats, yet broadscale assessments of its impact remain limited. We developed a quantitative framework to evaluate trawling effects on benthic habitats at broad spatial scales based on the sentinels of seabed (SoS) indicator.
Maider Plaza‐Morlote   +10 more
wiley   +1 more source

Reservas corporales y tasa de preñez del ciervo colorado introducido en Patagonia (Argentina) después de un período de sequía [PDF]

open access: yes, 2001
El ciervo rojo (Cervus elaphus) fue introducido en Patagonia en la década de 1920 y ha alcanzado densidades altas en ciertas áreas del ecotono entre el bosque y la estepa.
Fluck, Werner Thomas
core  

External structures at the nest‐site predict asymmetric architecture of nests in a mud‐building bird

open access: yesIbis, EarlyView.
In the animal kingdom, nests are essential structures and textbook examples of extended phenotypes. However, the relationship between builders, nest traits and the nest‐site remains poorly understood. We indirectly examine whether structures in the nest‐site influence nest‐building behaviour, specifically focusing on their effect on nest architecture ...
Nicolas M. Adreani   +2 more
wiley   +1 more source

Efecto de la pérdida de grasa dorsal y peso corporal sobre el rendimiento reproductivo de cerdas primíparas lactantes alimentadas con tres diferentes tipos de dietas

open access: yesRevista Científica, 2010
Se evaluaron 90 cerdas híbridas primíparas de traspatio, que se clasificaron de acuerdo al tipo de dieta en 3 grupos: G1, escamocha (residuos alimenticios de consumo humano); G2, escamocha y concentrado y/o granos, y G3, alimento balanceado.
Daniel Mota   +5 more
doaj  

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