Results 111 to 120 of about 1,934,582 (298)

Pig Seminal Plasma Extracellular Vesicles Enhance Motility During Preservation of Epididymal Spermatozoa but Impair Capacitation and IVF Parameters

open access: yesAndrology, EarlyView.
ABSTRACT Background Extracellular vesicles (EVs) produced by accessory sex glands play a key role in sperm functionality, influencing motility, viability, acrosome integrity, metabolic activity, and capacitation. Most studies on the effects of EVs on spermatozoa have focused on ejaculated spermatozoa, which have already been exposed to their own native
Ana Moya‐Fernández   +4 more
wiley   +1 more source

América del Sur en el comercio global (2007-2016)

open access: yesAgenda Internacional, 2018
El presente trabajo analiza las principales características del comercio de bienes y servicios de América del Sur ante los cambios en el contexto internacional.
Milú O. V. Fernández Rodríguez
doaj  

Servicio público y servicio universal en las telecomunicaciones

open access: yesEkonomiaz. Revista vasca de Economía, 1997
Se plantea la revisión del concepto jurídico de servicio público que aparece consagrado en el art. 128 de la Constitución. En la práctica éste ha quedado desplazado por el art. 90.2 del Tratado de Roma que impone la aplicación de las normas sobre la competencia en la medida en que éstas no impidan, de hecho o de derecho, el cumplimiento de la misión de
Gaspar Ariño Ortiz   +1 more
openaire   +1 more source

Cappitalismo. La uberización del trabajo

open access: yesEstudios Sociológicos
En un escenario donde lo virtual cobra cada vez más relevancia en la cotidianidad, es necesario desentrañar la inserción de las aplicaciones y plataforma en el mundo laboral, en este caso, el Uber. A través de una etnografía, Natalia Radetich es capaz de
Marcos Tonatiuh De Luca Martí
doaj   +1 more source

Conflación semántica: Análisis de fenómenos en el contexto de los WFS [PDF]

open access: yes, 2009
Este artículo pretende hacer un análisis crítico de los servicios de fenómenos (WFS), en concreto a su parte relativa a los fenómenos que contemplan estos servicios. Así, se repasará el estándar OGC para estos servicios y se analizará la accesibilidad
Ramos, JA., Vilches-Blázquez, LM.
core  

SERVICIO DELIVERY.pdf

open access: yes, 2021
The use of mobile applications to order food has become something natural for the consumer living in the contingency caused by COVID-19, however, it has not become a habit or generated any dependence or addiction for this purpose. Through the application of an electronic survey made up of 27 items, the profile of the food consumer was analyzed through ...
openaire   +1 more source

Distribution of adult T‐cell leukaemia/lymphoma subtypes and survival outcomes across geographical regions: An international retrospective cohort study

open access: yesBritish Journal of Haematology, EarlyView.
Summary Although adult T‐cell leukaemia/lymphoma (ATL) has a higher burden in certain world regions, outcomes have not been directly compared across regions. We conducted a multicentre cohort study comparing the distribution of ATL subtypes and overall survival (OS) across 1090 adults (≥18 years) diagnosed with ATL during 2000–2023 in Japan (n = 366 ...
Bryan Valcarcel   +31 more
wiley   +1 more source

Older adults and sport and physical activity professionals in Spain [PDF]

open access: yes, 2010
Presence of monitors in physical activities and sports practiced by adults older than 64 years of age in Spain is analyzed in this research. The objective of this study is to determine the existence of monitors in relation to the sociodemographic ...
Campos Izquierdo, Antonio   +4 more
core   +3 more sources

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

open access: yesBoreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo   +5 more
wiley   +1 more source

IDENTIFICACIÓN DE SERVICIOS PARA LA CONFORMACIÓN DE REDES DEL CORREDOR TURÍSTICO SOPÓ Y LA CALERA IDENTIFICATION OF SERVICES FOR THE CONFORMATION OF NETWORKS OF THE TOURIST CORRIDOR SOPO AND THE CALERA

open access: yesRevista U.D.C.A Actualidad & Divulgación Científica, 2008
RESUMEN En los municipios de La Calera y Sopó, en el Departamento de Cundinamarca - Colombia, el turismo se puede constituir en uno de los factores más importantes de desarrollo y de crecimiento económico, mediante la generación de empleo y la ...
Álvaro Lamprea Delgado   +6 more
doaj  

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