Results 61 to 70 of about 129,917 (162)

Estudios prenatales en pacientes sometidas a técnicas de reproducción asistida [PDF]

open access: yes, 2020
Desde finales del siglo XX, las técnicas de reproducción asistida (TRA) han formado parte de la historia reproductiva de muchas parejas, y gracias a los avances científicos y técnicos, ha sido posible el aumento de las tasas de gestación de nacidos vivos
Muñoz Romero, Ángela María
core  

Overlap of nonbreeding wandering albatrosses with fisheries and implications for colony‐specific population trajectories at South Georgia

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Bycatch in fisheries is one of the most serious threats to pelagic seabirds, causing major population declines. Mitigation measures can reduce bycatch substantially, but many fisheries fail to apply best practices, and seabird mortality remains high.
V. Warwick‐Evans   +2 more
wiley   +1 more source

Translocation effects on regional and local population viability and connectivity

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Translocations and reintroductions aim to improve the viability of isolated populations and promote connectivity for large carnivores. However, there is no established framework for assessing their success. We used the Eurasian lynx (Lynx lynx) in western and central Europe to assess the impact of translocations on the viability of six ...
Eva Sánchez Arribas   +25 more
wiley   +1 more source

Habilidades Comunicativas en la Consulta de Enfermería en Unidades de Reproducción Asistida [PDF]

open access: yes, 2016
La integración de la consulta de enfermería en las Unidades de Reproducción Asistida ha supuesto una mejora en el proceso que llevan a cabo las parejas que solicitan sus servicios.
Fanjul Argüelles, Aida
core  

Intra‐Urban Migration and Residential Concentration Patterns of Foreign‐Born Migrants. The Case of Barcelona (2012–2021)

open access: yesPopulation, Space and Place, Volume 32, Issue 5, July 2026.
ABSTRACT The territorial concentration of the foreign‐born population in large cities is determined by the evolution of international migration flows, as well as by the internal demographic and migration dynamics of both native‐born and immigrant populations.
Jordi Bayona‐i‐Carrasco   +1 more
wiley   +1 more source

Risk of minor congenital heart defect in infants conceived via assisted reproductive technology: cohort study from the Copenhagen Baby Heart Study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 68, Issue 1, Page 59-67, July 2026.
ABSTRACT Objective Infertility affects up to 20% of couples in high‐income countries, which has led to an increased use of assisted reproductive technology (ART). While previous studies have linked ART to a higher risk of major congenital heart defects (CHD), less is known about the associated risk of minor CHD.
F. Kyhl‐Svart   +16 more
wiley   +1 more source

Population dynamics of potentially harmful haplotypes: a pedigree analysis

open access: yesBMC Genomics
Background The identification of low-frequency haplotypes, never observed in homozygous state in a population, is considered informative on the presence of potentially harmful alleles (candidate alleles), putatively involved in inbreeding depression ...
Katherine D. Arias   +4 more
doaj   +1 more source

Métodos de reproducción asistida en Colombia

open access: yes, 2019
Los métodos de preproducción asistida en Colombia no se encuentra regulados por alguna disposición normativa dentro del marco legal vigente; al igual que no existen políticas publicas establecidas; por ello es importante su reglamentación debido a que se
Contreras Garibello, Juan Carlos   +1 more
core   +1 more source

First Non‐Invasive Monitoring of Fecal Steroids in Greater Caribbean Manatees (Trichechus manatus manatus)

open access: yesZoo Biology, Volume 45, Issue 4, Page 435-443, July/August 2026.
This study established the first fecal hormonal reference values (P4/E2) for the Greater Caribbean manatee. Using non‐invasive ELISA, the authors found no significant differences between mature and immature females, highlighting that long‐term monitoring and ultrasounds are essential to fully understand their complex reproductive cycles.
Vanessa Bermúdez‐Cardona   +3 more
wiley   +1 more source

Social isolation does not inhibit sexual behaviour and testosterone secretion in sexually inexperienced photo-stimulated bucks in contact with seasonally anoestrous goats

open access: yesItalian Journal of Animal Science, 2020
The aims of this study were to determine: (i) whether sexually inexperienced photo-stimulated males housed individually in pens display less intense sexual behaviour than sexually inexperienced photo-stimulated males housed in a group, and (ii) whether ...
Ilda G. Fernández   +8 more
doaj   +1 more source

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