Results 41 to 50 of about 319,079 (176)

Plasma IGF1 and 17β-Estradiol Concentrations During the Follicular Wave in Llamas

open access: yesFrontiers in Veterinary Science, 2020
The aim of this study was to characterize the temporal association between follicular waves and circulating concentrations of 17β-estradiol (E2) and IGF1 in llamas. Follicular waves could be clearly divided in three phases: growth, plateau and regression;
María F. Gallelli   +8 more
doaj   +1 more source

Drought reduces the value of both artificial and natural wetlands for gulls breeding in the Mediterranean region

open access: yesJournal of Applied Ecology, Volume 63, Issue 3, March 2026.
The importance of artificial wetlands for waterbird conservation can be easily overestimated from count data alone. The value of extensive fish ponds as a breeding habitat depends on maintaining the availability of natural marshes as a foraging habitat. This requires reducing impacts from groundwater extraction. Given recent abandonment of aquaculture,
Yingjun Wang   +5 more
wiley   +1 more source

Infertilidad humana. Técnicas de reproducción asistida [PDF]

open access: yes, 2017
La infertilidad es una condición que afecta actualmente al 15% de las parejas en edad reproductiva. Se conoce como la incapacidad de una pareja de llevar un embrazo a término tras un año manteniendo relaciones sexuales sin utilizar métodos ...
Gutiérrez Pérez, María del Rocío
core  

Sustained contraceptive‐level plasma concentrations of 4,4′‐dinitrocarbanilide in free‐ranging urban feral pigeons fed a custom bait Niveles plasmáticos altos y sostenidos de 4,4′‐dinitrocarbanilida en palomas domésticas libres alimentadas con un cebo anticonceptivo

open access: yesWildlife Society Bulletin, Volume 49, Issue 4, December 2025.
We assessed the acceptability and consumption of a custom‐developed nicarbazin bait for feral pigeons, inferred its contraceptive efficacy, and evaluated the reversibility of its effects upon cessation of treatment. Only feral pigeons consumed the bait, except for one eared dove that also ingested the food. Continuous administration of this bait raised
Joaquín L. Navarro   +7 more
wiley   +1 more source

Las técnicas de reproducción asistida en México: Una realidad ignorada en su legislación.

open access: yesBioderecho.es
El presente trabajo muestra la situación legal que existe en México, tanto a nivel federal como estatal, respecto a las técnicas de reproducción asistida.
Francisco Javier Sandoval Ochoa
doaj   +1 more source

Desnacionalización, Regímenes Visuales y Resistencia: Gitanos Americanos en Ciudad de México

open access: yesCultural Anthropology, Volume 39, Issue 2, Page 171-193, May 2024.
RESUMEN La idea de que el carácter de los roma es exterior al flujo de la dinámica de los procesos históricos es un organicismo alienante en México y América Latina, pues los regímenes visuales han reproducido estereotipos culturales y raciales excluyentes sobre ellos.
DAVID LAGUNAS
wiley   +1 more source

La regulación sobre la integración de técnicas de reproducción asistida en el sistema de salud desde el principio de la sostenibilidad fiscal en Colombia [PDF]

open access: yes, 2018
Artículo de ReflexiónLos cambios en las sociedades modernas que se presentan debido a los avances en materia tecnológica desde el campo de la medicina, son una realidad evidente que deben tener en cuenta actualmente los Estados al momento de desarrollar ...
Perea-Motato, Yarissa
core  

The characterization of CellROX™ probes could be a crucial factor in ram sperm quality assessment

open access: yesFrontiers in Veterinary Science
Several authors have demonstrated that low levels of reactive oxygen species (ROS) are necessary for the physiological functions of sperm, such as capacitation, hyperactivation, acrosomal reaction and fertilization.
Cristina Palacin-Martinez   +17 more
doaj   +1 more source

La filiación derivada de técnicas de reproducción asistida

open access: yesREDUR. Revista Electrónica de Derecho Universidad de La Rioja, 2016
The filiation is the relationship between parents and their children and must be formally determined to generate legal effects. The determination of the filiation of children born by assisted reproduction techniques is regulated in LTRHA under specific ...
Lucía Muñoz Benito
doaj   +1 more source

Identifying predictors of translocation success in rare plant species

open access: yesConservation Biology, Volume 38, Issue 2, April 2024.
Abstract The fundamental goal of a rare plant translocation is to create self‐sustaining populations with the evolutionary resilience to persist in the long term. Yet, most plant translocation syntheses focus on a few factors influencing short‐term benchmarks of success (e.g., survival and reproduction).
Joe Bellis   +43 more
wiley   +1 more source

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