Results 111 to 120 of about 1,670,722 (291)

Producción in vitro de embriones de bovino: influencia de la suplementación sérica y hormonal [PDF]

open access: yes, 1999
On study the effect of different serum and hormonal supplements, when added to the maturation medium, on the in vitro maturation and subsequent fertilization and cleavage process of bovine oocytes.
Moreno-Millán, M.   +4 more
core  

Assessing the Effects of Biodiesel Production on Sustainability: A Bayesian Two‐Stage Data Envelopment Analysis Approach

open access: yesSustainable Development, EarlyView.
ABSTRACT Sustainable development transforms production systems, requiring integrated environmental, social, and economic strategies. Energy systems are key agro‐industrial supply chains in developing countries. Brazil's soybean supply chain impacts Gross Domestic Product, mainly through exports.
Aline Veronese da Silva   +3 more
wiley   +1 more source

Estudio comparativo de dos topologías de filtro activo de potencia en sistemas trifásicos con cargas no lineales desbalanceadas [PDF]

open access: yes, 2015
Se plantea la comparación de dos topologías de filtro activo de potencia bajo las mismas condiciones de operación, es decir; misma carga no lineal desbalanceada, iguales escenarios de tensión, iguales estrategias de control y modulación de la corriente ...
Castro, Robert Andrés   +1 more
core  

Global Fluoride Toxicology Landscape: Bibliometric Approaches and Scientific Mapping

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT This study analyzed research trends in the 100 most‐cited articles on fluoride toxicology, a topic widely debated due to the toxic effects associated with levels deemed safe for human exposure. A bibliometric analysis was conducted using the Web of Science‐Core Collection, extracting data such as citation count, authors, keywords, journal ...
Maria Karolina Martins Ferreira   +8 more
wiley   +1 more source

Diseño del sistema de control y automatización para una trituradora de endocarpio y mesocarpio de coco [PDF]

open access: yes, 2015
Se dan a conocer los diferentes procesos llevados a cabo para la realización del diseño del sistema de control y automatización para una trituradora de endocarpio y mesocarpio de coco, iniciando por una inspección mecánica y eléctrica de la máquina, para
Montenegro Palles, Jeferson Geovanny
core  

Record phenological responses to climate change in three sympatric penguin species

open access: yesJournal of Animal Ecology, EarlyView.
This paper is impressive because we managed to monitor extensively a really difficult place to reach and operate in. We deployed 77 cameras across Antarctica and the Sub Antarctic islands to monitor three different species of penguins. We found that they are the fastest advancing vertebrates with respect to their timing of breeding.
Ignacio Juarez Martinez   +8 more
wiley   +1 more source

Desarrollo de embriones somáticos de alcornoque en biorreactores de inmersión temporal. [PDF]

open access: yes, 2005
El sistema de inmersión temporal (SIT) se basa en el empleo de medio líquido y el establecimiento de ciclos de aporte y retirada del medio. Esto permite aprovechar las ventajas del medio líquido (favorece la absorción de nutrientes, el crecimiento del ...
Alegre, Jesús   +4 more
core  

Herbivore and mesocarnivore carcasses trigger divergent short‐term changes in soil properties

open access: yesJournal of Animal Ecology, EarlyView.
Scavengers reshape nutrient cycles in soils under carrion. Compared to herbivore carcasses, smaller but longer‐lasting carnivore remains boost nutrient levels and microbial activity in dry soils. Abstract Animal corpses act as pulses of organic matter (OM) and serve a key zoogeochemical role by providing localized nutrient inputs to soils and thereby ...
Adrián Colino‐Barea   +15 more
wiley   +1 more source

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