Results 111 to 120 of about 479,019 (399)

Dating the diversification of the major lineages of Passeriformes (Aves)

open access: yesBMC Evolutionary Biology, 2014
BackgroundThe avian Order Passeriformes is an enormously species-rich group, which comprises almost 60% of all living bird species. This diverse order is believed to have originated before the break-up of Gondwana in the late Cretaceous.
P. Ericson   +4 more
semanticscholar   +1 more source

Enhancing Cycling Stability of Aqueous Aluminum‐Metal Batteries via LaCl3‐Modulated Interfacial Reactions

open access: yesAdvanced Science, EarlyView.
In the aqueous AlCl3 electrolyte of aluminum‐metal batteries, the introduction of LaCl3 adjusts the solvation structure of Al3+ and enhances its diffusion level. The oxide precipitate formed by La3+ covers the aluminum metal anode and effectively alleviates corrosion reactions, thereby improving the cycling stability of the battery.
Yanshen Gao   +12 more
wiley   +1 more source

Nest niche overlap among the endangered Vinaceous-breasted Parrot (Amazona vinacea) and sympatric cavity-using birds, mammals, and social insects in the subtropical Atlantic Forest, Argentina [PDF]

open access: yes, 2017
Many forest bird species require tree cavities for nesting, and share this resource with a diverse community of animals. When cavities are limited, niche overlap can result in interspecific competition, with negative consequences for threatened ...
Bonaparte, Eugenia Bianca   +1 more
core   +1 more source

Stromal Cell‐Mast Cell Communication Orchestrates Anti‐Viral Immunity in the Meninges

open access: yesAdvanced Science, EarlyView.
This study delineates the spatial distribution and postnatal maturation of meningeal mast cells and uncovers their essential role in antiviral immunity. Using genetic models, mast cells are shown to promote CD8⁺ T cell infiltration and viral clearance via IL‐33 receptor signaling and synergistic activation by IL‐33 and ATP from infected stromal cells ...
Qingqing Li   +7 more
wiley   +1 more source

Formulação das dietas, desempenho e qualidade da carcaça, produção e composição de dejetos de suínos

open access: yesScientia Agricola, 2002
A eficiência de utilização dos alimentos pelos animais pode ser influenciada pela maneira como as informações de composição e digestibilidade dos nutrientes são utilizadas.
Kátia Nones   +3 more
doaj  

Necessidade de mata ciliar nas propriedades suinícolas a partir dos dados do Levantamento Agropecuário Catarinense

open access: yesAgropecuária Catarinense, 2020
O objetivo deste estudo foi gerar informações e conhecimentos a fim de subsidiar a tomada de decisões e o delineamento de políticas e estratégias para conservação e recuperação de matas ciliares nas propriedades suinícolas de Santa Catarina.
Julio Cesar Pascale Palhares   +1 more
doaj  

Extensión de la muda preformativa del buscabreña (Icteria virens) a partir de individuos capturados durante la migración de otoño en el sur del estado de Veracruz, México

open access: yesHuitzil, 2015
El estudio del proceso de muda de las aves neotropicales ha tenido gran relevancia a partir de la publicación de guías especializadas, pero el conocimiento en este campo aun es escaso.
Manuel Grosselet   +3 more
doaj   +1 more source

Simulated holographic three-dimensional intensity shaping of evanescent-wave fields [PDF]

open access: yes, 2008
The size of bright structures in traveling-wave light fields is limited by diffraction. This in turn limits a number of technologies, for example, optical trapping.
Bozhevolnyi   +16 more
core   +1 more source

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