Results 11 to 20 of about 75,972 (154)

The use of insulin-like growth factor 1 improved the parameters of the seminogram in a patient with severe oligoasthenoteratozoospermia [PDF]

SAGE Open Medical Case Reports, 2019
Male patients suffering from oligoasthenoteratozoospermia typically failed to achieve pregnancy, even with assisted reproductive technologies. Growth hormone and insulin-like growth factor 1 have been shown to regulate sperm quality parameters; therefore,
José Arturo Mora Rodríguez, Leonardo M Porchia, Felipe Camargo, Esther López-Bayghen   +3 more
doaj   +2 more sources

Editorial: Metabolic regulation of gamete function in health and disease [PDF]

Frontiers in Cell and Developmental Biology, 2022
Débora J. Cohen, Vanina G. Da Ros, Nicolas G. Brukman, Farners Amargant   +3 more
doaj   +2 more sources

Ecological and evolutionary effects of crop diversity decrease yield variability

Journal of Ecology, Volume 111, Issue 6, Page 1242-1253, June 2023., 2023
Results highlight the ecological and evolutionary role of plant interactions in crop mixtures, which can affect yield stability, while also reflecting on the importance of climate and resource availability in modifying the diversity‐stability relationship.
Jesús López‐Angulo, Laura Stefan, Nadine Engbersen, Christian Schöb   +3 more
wiley   +1 more source

Modeling genetic benefits and financial costs of integrating biobanking into the conservation breeding of managed marsupials

Conservation Biology, Volume 37, Issue 2, April 2023., 2023
Abstract Managed breeding programs are an important tool in marsupial conservation efforts but may be costly and have adverse genetic effects in unavoidably small captive colonies. Biobanking and assisted reproductive technologies (ARTs) could help overcome these challenges, but further demonstration of their potential is required to improve uptake. We
Lachlan G. Howell, Peter R. Mawson, Pierre Comizzoli, Ryan R. Witt, Richard Frankham, Simon Clulow, Justine K. O'Brien, John Clulow, Paul Marinari, John C. Rodger   +9 more
wiley   +1 more source

Integrating effects of neighbor interactions for pollination and abiotic resources on coffee yield in a multi‐strata agroforest

Biotropica, Volume 54, Issue 5, Page 1226-1237, September 2022., 2022
Animal‐pollinated plants interact with neighbors for both abiotic resources and pollination, but few studies have compared the relative magnitude of these effects, particularly in agroecosystems. This study evaluated the effects of neighboring plants at three vertical strata (herbs, coffee bushes, and canopy trees) on pollen deposition, fertilization ...
Gordon Fitch, John Gonzalez, Anna M. Oana, Maggie Oliver, John Vandermeer   +4 more
wiley   +1 more source

How to Explain Major Policy Change Towards Sustainability? Bringing Together the Multiple Streams Framework and the Multilevel Perspective on Socio‐Technical Transitions to Explore the German “Energiewende”

Policy Studies Journal, Volume 50, Issue 3, Page 671-699, August 2022., 2022
Most efforts at explaining major policy transformation apply a single lens to study specific cases. Recent contributions have called for a more plural use of theories to facilitate the production of valuable new perspectives and research agendas. The German energy transition is a good example of such a transformative change.
Pim Derwort, Nicolas Jager, Jens Newig
wiley   +1 more source

Long‐term and year‐to‐year stability and its drivers in a Mediterranean grassland

Journal of Ecology, Volume 110, Issue 5, Page 1174-1188, May 2022., 2022
This 14‐year study of a species‐rich semi‐natural Mediterranean grassland shows that stability increases with richness, asynchrony and conservative strategies. Fertilization decreases stability by promoting long‐term trends in species composition, favouring competitive species and decreasing richness.
Mercedes Valerio, Ricardo Ibáñez, Antonio Gazol, Lars Götzenberger   +3 more
wiley   +1 more source

Respuesta de variedades de maíz (Zea mays L.) a diferentes fuentes de fertilización en el Valle de Puebla

Terra Latinoamericana, 2018
Actualmente existen opciones biológicamente sustentables que pueden sustituir parcialmente la fertilización sintética de los cultivos, disminuyendo los costos de producción. Para evaluar la respuesta de 18 variedades de maíz a la fertilización sintética (
Rafael Alvarado Teyssier, Ernesto Aceves Ruiz, Juan de Dios Guerrero Rodríguez, José Isabel Olvera Hernández, Ángel Bustamante González, Samuel Vargas López, José Hilario Hernández Salgado   +6 more
doaj   +1 more source

Efecto del manejo orgánico y convencional sobre propiedades bioquímicas de un Andisol y el cultivo de papa en invernadero

Agronomía Costarricense, 2017
Se determinaron características bioquímicas de un Andisol de Zarcero, sometido por más de 20 años, al manejo orgánico y al convencional. Posteriormente se evaluó en ambos suelos el rendimiento de la papa en condiciones de invernadero, bajo los siguientes
Stephanie Marín, Floria Bertsch, Leida Castro   +2 more
doaj   +1 more source

Comparison of nitrification inhibitors to restrict nitrate leaching in a maize crop irrigated under mediterranean conditions [PDF]

, 2010
The aim of this paper was to compare dicyandiamide (DCD) and 3,4 dimethylpyrazole phosphate (DMPP) as inhibitors of ammonium oxidation and nitrate leaching after applying fertilizer to a maize (Zea mays L.) crop grown under Mediterranean conditions.
Arauzo, M., Diez, J.A., Hernaiz, P.J., Sanz Cobeña, Alberto, Vallejo Garcia, Antonio   +4 more
core   +3 more sources