Results 41 to 50 of about 110,367 (252)

Clinical utility of ultrasonography in pediatric and adolescent gynecology: retrospective review of 1313 ultrasound examinations

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 2, Page 226-234, February 2025.
ABSTRACT Objectives Ultrasound is the first‐line imaging modality of the pelvis in the pediatric and adolescent gynecology (PAG) population. Ultrasound findings in pre‐ and postpubertal PAG patients differ from those in adults. Diagnostic models for adnexal pathology have not been validated in this cohort.
N. Cooper   +15 more
wiley   +1 more source

Fecundidad y fertilidad: aspectos generales

open access: yesRevista Médica Clínica Las Condes, 2010
ResumenEn este artículo se examina la fecundidad natural con énfasis en los factores determinantes y sus moduladores las variables diferenciales. Se presenta estrategias para el estudio de la prevalencia de la infertilidad mediante estudios basados en población o su estimación y tendencias en base a datos de nuliparidad al final de la vida reproductiva
openaire   +3 more sources

Human oocyte capacitation culture: Essential step toward hormone‐free assisted reproductive technology

open access: yesReproductive Medicine and Biology, Volume 24, Issue 1, January/December 2025.
The biphasic CAPA‐IVM system promotes oocyte competence acquisition. The use of CAPA‐IVM in clinical studies has set the tone for major progress in the field and is achieving a safer, less expensive, and less emotionally loaded IVF experience, currently validated for PCOS patients.
Johan Smitz   +8 more
wiley   +1 more source

Efecto del VEGF sobre la vascularización, foliculogénesis y apoptosis en el ovario de ratonas [PDF]

open access: yes, 2007
Objetivo: El objetivo de este trabajo es investigar los efectos de la inyección ovárica directa de VEGF sobre el desarrollo de folículos antrales, la neoangeogénesis y la apoptosis. Tipo de estudio: Estudio control de laboratorio.
Barañao, Rosa Ines   +7 more
core  

Behavior patterns in hormonal treatments using fuzzy logic models [PDF]

open access: yes, 2018
Assisted reproductive technologies are a combination of medical strategies designed to treat infertility patients. Ideal stimulation treatment has to be individualized, but one of the main challenges which clinicians face in the everyday clinic is how to
Aroba Páez, Javier   +7 more
core   +1 more source

La sombra alargada del patrón: Gamonalismo y hábitos hacendatarios en Chimborazo tras la reforma agraria

open access: yesThe Journal of Latin American and Caribbean Anthropology, Volume 29, Issue 4, Page 352-363, December 2024.
Abstract This paper explores selective aspects of the historical processes of organization of the kichwa peasantry in the Andes of Ecuador. Based on the analysis of two representative cases of confrontation between peasants and landowners over access to land in the province of Chimborazo, it discusses the relevance of the concept of “gamonalismo” as ...
Víctor Bretón
wiley   +1 more source

Algunos ritos de fertilidad [PDF]

open access: yes, 1986
Se describen ritos y danzas de diversos países que son utilizadas para proteger a la familia o la tribu, para el éxito en la caza, la cosecha, la multiplicación del ganado, etc.
Armstrong, Lucile
core  

Ectomycorrhizal fungi and the nitrogen economy of Nothofagus in southern Patagonia

open access: yesEcology and Evolution, Volume 14, Issue 10, October 2024.
Ectomycorrhizal fungi play essential roles in nitrogen cycling and plant nutrient uptake at high latitudes. However, they have disproportionately been studied in boreal forests dominated by evergreen conifers. We characterized ectomycorrhizal associations and the nitrogen economy of co‐occurring deciduous and evergreen angiosperms from the genus ...
Camille Truong   +4 more
wiley   +1 more source

Globalización y Demografía: Oportunidades y restricciones [PDF]

open access: yes, 2013
La transición demográfica es un proceso de alcance global por el cual la población mundial pasará de una situación de alta fertilidad y alta mortalidad a otra de baja fertilidad y baja mortalidad.
Fanelli, José María Jesús
core  

Are population policies in Arab countries largely ineffective? Past and present perspectives 阿拉伯国家的人口政策是否大多无效? 过去和现在的观点 ¿Son las políticas de población de los países árabes en gran medida ineficaces? Perspectivas pasadas y presentes

open access: yesDigest of Middle East Studies, Volume 33, Issue 4, Page 385-409, Fall 2024.
Abstract This essay explores two types of population policies common in Arab countries: pro‐natalist policies, aimed at encouraging higher birth rates, and anti‐natalist policies, aimed at reducing birth rates. Determining their practical impact is often challenging due to the lack of control or comparison groups. However, historical policy patterns in
Amos Nadan
wiley   +1 more source

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