Results 31 to 40 of about 129,917 (162)

Las ceremonias y el mundo simbólico en la producción y reproducción sociales de las sociedades Yámana y Selk'nam de Tierra del Fuego

Revista Atlántica-Mediterránea de Prehistoria y Arqueología Social, 2013
Entendiendo la etnoarqueologia de las sociedades cazadoras recolectoras como una disciplina que puede contribuir al desarrollo de la metodologia en arqueologia, asi como para generar modelos explicativos sobre estas formaciones sociales y asumiendo asimismo que en dichas sociedades la contradiccion principal entre produccion y reproduccion sociales ...
openaire   +1 more source

Regulación jurídica de los requisitos para la práctica de la reproducción asistida mediante la técnica del vientre subrogado en el Estado ecuatoriano

, 2022
La técnica del vientre subrogado es una práctica de reproducción asistida que se ha realizado en nuestro país desde el año de 1993, la cual, aún no se encuentra contemplada en nuestra normativa, por lo que se considera necesario que se instauren los ...
Méndez Ortiz, Erika Glenda
core   +1 more source

Effects of vaginal vs oral progesterone supplementation before embryo transfer on live birth rates and levels: a randomized trial

Reproduction and Fertility
The increase in frozen embryo transfers (FETs) is a consequence of advances in embryo vitrification and the implementation of genetic screening of embryos.
Gorka Barrenetxea, Olaia Prego, Ricardo Celis, Edurne Martínez, María De Las Heras, Oihane Gómez, Olaia Aguirre, Sheila Samojluk, Julen Barrenetxea   +8 more
doaj   +1 more source

Reproducción social y pobreza urbana

, 1996
Este proyecto tiene como objetivo el estudio de la problemática de la reproducción social en familias pertenecientes a barrios periurbanos del Gran La Plata, que viven en condiciones de pobreza.
Colman, Oscar Eduardo
core   +2 more sources

Pelvic morphology and body size in relation to the preauricular sulcus: Evidence from medieval to modern Iberia

The Anatomical Record, EarlyView.
Abstract The preauricular sulcus has long been debated as a pelvic feature variably attributed to obstetric stress, ligamentous traction, and broader biomechanical processes. To clarify its determinants, we analyzed 409 adult individuals from three archeological and one early modern skeletal collection from the Iberian Peninsula, integrating graded ...
Rebeca García‐González, Julia Muñoz‐Guarinos, Nico Cirotto, Sonia Díaz‐Navarro, Laura Rodríguez, José Miguel Carretero   +5 more
wiley   +1 more source

Pelvic breadth and juvenile locomotor energetics: Implications for the obstetrical dilemma hypothesis across human growth in past and present humans

The Anatomical Record, EarlyView.
Abstract The obstetrical dilemma hypothesis (ODH) proposes an evolutionary trade‐off between obstetric requirements and locomotor performance. However, whether external pelvic breadth measures influence walking energetics during human growth remains poorly understood.
Guillermo Zorrilla‐Revilla, Olalla Prado‐Nóvoa, Kevin P. Davy, José Miguel Carretero, Rebeca García‐González   +4 more
wiley   +1 more source

Trastornos sexuales en pacientes de reproducción asistida [PDF]

, 2012
Estudio de las relaciones sexuales en los pacientes sometidos a tecnicas de reproducción ...
Revilla Gutiérrez, Lorena
core  

Improving ARTs: Microfluidics as a Tool for Sperm Selection

Andrology, EarlyView.
ABSTRACT Sperm selection is a critical step in assisted reproductive technology (ART), as sperm quality directly influences embryo quality. In vivo, the female reproductive tract imposes several physical and physiological barriers that favors only the most optimal spermatozoa reaching the fertilization site.
A. Pérez‐Gómez, A. Urriés, J. L. de Pablo, L. Serrano‐Ramón, S. Sanchez, R. Herrer, J. M. Morrell, C. Malo   +7 more
wiley   +1 more source

Advancing conservation breeding programs for marine invertebrates

Conservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam, Bart Shepherd, Kylie Lev, Rebecca Albright   +3 more
wiley   +1 more source

The link between colorfulness and extinction risk across the world's passerine birds

Conservation Biology, EarlyView.
Abstract Many of the functional traits that mediate extinction risk across the range of biodiversity relate indirectly to a species’ ability to persist in a changing world, yet certain traits such as coloration directly affect human interactions with wildlife.
Montague H. C. Neate‐Clegg, Natalia Ocampo‐Peñuela   +1 more
wiley   +1 more source