Results 21 to 30 of about 47,174 (157)

Performance of non‐invasive prenatal testing in vanishing‐twin and multiple pregnancies: results of TRIDENT‐2 study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 6, Page 738-746, December 2025.
ABSTRACT Objective To evaluate the performance of non‐invasive prenatal testing (NIPT) in vanishing‐twin and multiple pregnancies. Methods This study was conducted as part of the TRIDENT‐2 study, in which NIPT was offered as a first‐tier screening test to women with a multiple pregnancy or vanishing‐twin pregnancy between 1 June 2020 and 31 March 2023 ...
J. C. A. van Eekhout   +86 more
wiley   +1 more source

Reproductive outcome after frozen embryo transfer with hormone replacement therapy according to luteal‐phase support protocol: systematic review and network meta‐analysis of randomized controlled trials

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 4, Page 422-432, October 2025.
ABSTRACT Objective To compare reproductive outcome between luteal‐phase support (LPS) protocols for frozen embryo transfer (FET) cycles with hormone replacement therapy (HRT). Methods A search was conducted in MEDLINE, Scopus, LILACS, EMBASE, Scielo.br, PROSPERO, CINAHL, PsycINFO, AMED, ClinicalTrials.gov, ICTRP, the Cochrane Library and conference ...
A. Etrusco   +11 more
wiley   +1 more source

Impact of endometrial thickness on reproductive outcome in fresh and frozen–thawed embryo transfer: systematic review and meta‐analysis

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 3, Page 271-281, September 2025.
ABSTRACT Objective To evaluate the impact of endometrial thickness on the reproductive outcomes of embryo transfer (ET) treatments using both cut‐off‐based meta‐analysis and meta‐analysis of proportions. Methods This was a systematic review and meta‐analysis of comparative studies (randomized controlled trials, cohort studies, case–control studies) and
F. Pérez‐Milán   +10 more
wiley   +1 more source

El embrión in vitro como fuente de células troncales: análisis jurídico-crítico [PDF]

open access: yes, 2004
Al confrontar las correspondiente legislaciones, se advierte una ruptura entre la LTRA de 1988 y el espíritu y doctrina del Tribunal Constitucional español.
Díaz-de-Terán-Velasco, M.C. (María Cruz)
core  

Cliquepolitik: Multimodal online discourse coalitions on CRISPR‐Cas genome editing technology

open access: yesReview of Policy Research, Volume 42, Issue 1, Page 50-76, January 2025.
Abstract The influence of visualizations on decision‐making about controversial policy issues is increasingly recognized in the political and policy sciences. In this paper, we explore how combinations of visuals and text on Twitter (now X) lead to the formation of networks of actors sharing similar textual and visual framings about a policy issue in ...
Eduardo Rojas‐Padilla   +2 more
wiley   +1 more source

Estudio ultraestructural de embriones bovinos producidos in vitro durante las etapas del desarrollo temprano y tardío

open access: yesRevista Científica, 2012
Se analizó la ultraestructura de embriones bovinos producidos in vitro durante su desarrollo temprano y tardío, mediante la técnica de microscopia electrónica de transmisión (MET). Los complejos cúmulus-ovocitos fueron aspirados de vacas sacrificadas en
Yadira Urribarrí Rodríguez   +6 more
doaj  

Sociedad del conocimiento y comunidades nootrópicas: hacia la Red Universal Digital [PDF]

open access: yes, 2006
Los países más desarrollados realizan crecientemente sus actividades bajo la forma de una sociedad de la información, que puede ser al mismo tiempo el embrión de una sociedad del ...
Sáez Vacas, Fernando
core  

Embryo excision in Compositae, with implications for combating biodiversity loss

open access: yesApplications in Plant Sciences, Volume 12, Issue 5, September-October 2024.
Abstract Premise Embryo excision is an effective, under‐described means of promoting germination in the sunflower family and may help to ensure the survival of endangered taxa or lineages with limited seed availability. Methods and Results We describe and illustrate a detailed method of embryo excision used successfully to stimulate germination in a ...
Bruce G. Baldwin   +2 more
wiley   +1 more source

Desarrollo de embriones caprinos in vitro: Efecto del co-cultivo con células epiteliales de oviducto

open access: yesRevista Científica, 2010
El desarrollo de sistemas de cultivo in vitro que permitan obtener altos porcentajes de embriones viables es de gran importancia para la implementación de biotecnologías como el clonado y la transferencia de genes.
Pablo Bosch   +5 more
doaj  

Collective effects of rising average temperatures and heat events on oviparous embryos

open access: yesConservation Biology, Volume 38, Issue 4, August 2024.
Abstract Survival of the immobile embryo in response to rising temperature is important to determine a species’ vulnerability to climate change. However, the collective effects of 2 key thermal characteristics associated with climate change (i.e., rising average temperature and acute heat events) on embryonic survival remain largely unexplored. We used
Liang Ma   +13 more
wiley   +1 more source

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