Results 41 to 50 of about 14,095,396 (139)

Unravelling the phylogeny of armadillos and their kin (Mammalia, Xenarthra, Cingulata) combining morphological, molecular, and stratigraphic data

Cladistics, EarlyView.
Abstract Cingulata, a major lineage of Xenarthra, comprises extinct and extant armoured placental mammals that diversified throughout the Cenozoic. Despite extensive study, phylogenetic hypotheses based on morphological and molecular data remain incongruent, and no total evidence analysis has been conducted. Here, we integrate the largest morphological
Daniel M. Casali, Mariela C. Castro, Martin R. Ciancio, Timothy J. Gaudin, Jeremy L. Bramblett, Alberto Boscaini, Fernando A. Perini, Max C. Langer   +7 more
wiley   +1 more source

Análise de perda de solo, utilizando o modelo (RUSLE) Revised Universal Soil Loss Equation, aplicado com auxílio das técnicas de geoprocessamento na bacia do Ribeirão Reis, Maringá-PR [PDF]

, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-Graduação em Geografia, Florianópolis, 2008.O presente trabalho teve como objetivo avaliar a presença de processos erosivos e ...
Silva, Valdeir Demetrio da
core  

Efeito da cobertura viva com leguminosas herbáceas perenes na agregação de um argissolo

Revista Brasileira de Ciência do Solo, 2002
O presente trabalho foi desenvolvido na área do Campo Experimental da Embrapa Agrobiologia, Seropédica (RJ), com o objetivo de avaliar a morfologia e a distribuição de raízes de algumas leguminosas herbáceas perenes; os efeitos da cobertura viva no teor ...
A. Perin, J. G. M. Guerra, M. G. Teixeira, M. G. Pereira, A. Fontana   +4 more
doaj   +1 more source

Evolutionary history suggests nymphal origin of antennal expansions in adult leaf‐footed bugs História evolutiva sugere origem ninfal de antenas expandidas em Coreídeos adultos

Ecological Entomology, EarlyView.
Antennal expansions are rare among adult species but are more common among nymphal stages. Despite this, expansions occurred mainly in Coreinae, which are the most diverse subfamily of Coreidae. Among genera, adults only showed antennal expansions when nymphs showed expansions.
Mariana Polli, Ummat Somjee, Alexandre V. Palaoro   +2 more
wiley   +1 more source

Revisiting avian wingtip shape indices: a comparison of methods with empirical data

Ibis, EarlyView.
The study of avian wing shape helps in understanding how birds can adapt to their habitats and respond to changing environmental conditions. An important challenge in this endeavour is obtaining estimates of wing shape that are truly independent of body size, particularly when there is an allometric relationship between them. Size‐constrained component
Iván de la Hera, María Torres‐Sánchez, José Luis Arroyo, Rubén Rodríguez, Guillermo Fandos, Oscar Gordo   +5 more
wiley   +1 more source

Método de avaliação visual da qualidade da estrutura aplicado a Latossolo Vermelho Distroférrico sob diferentes sistemas de uso e manejo Visual assessment soil quality structure methodology applied to Oxisol under different soil use and management

Ciência Rural, 2009
O aumento da demanda pela avaliação da qualidade da estrutura do solo para o adequado crescimento de plantas tem motivado pesquisadores a desenvolverem técnicas visuais de avaliação, a campo, simples e confiáveis para esse fim.
Neyde Fabíola Balarezo Giarola, Cássio Antonio Tormena, Alvaro Pires da Silva, Bruce Ball   +3 more
doaj   +1 more source

Layer‐by‐layer soft‐tissue effects on flexion–extension‐dominant passive ex vivo limb joint ROM in quadrupedal mammals: An anatomical contribution to a morphofunctional framework

Journal of Anatomy, EarlyView.
Layer‐by‐layer passive ex vivo assessment of flexion–extension‐dominant limb joint ROM across rabbit, pudu deer, chilla fox and pig revealed joint‐, tissue‐ and taxon‐specific responses to progressive tissue removal. Proximal joints often showed increasing ROM, whereas distal joints often showed non‐monotonic responses.
Paul Medina‐González, Valentina Bernal‐Fernández, Rodrigo Arancibia‐Müller, Pedro Aburto‐Valdebenito, Marcelo Gómez‐Jaramillo   +4 more
wiley   +1 more source

Soil Structure Under Irrigated Beans And Different Soil Management Practices [estrutura Do Solo Sob Feijão Irrigado E Diferentes Manejo Do Solo]

, 2016
Agricultural management affects soil structure, modifying soil physical properties and soil water movement. The objective of this study was to evaluate the effects of no-tillage (NT) and conventional tillage (CT) on soil structure through physical ...

core   +1 more source

Glucocorticoids modulate drug transporter function in human fetal brain endothelial cells

The Journal of Physiology, EarlyView.
Abstract figure legend P‐glycoprotein and breast cancer resistance protein are the most prominent drug transporters at the fetal blood–brain barrier. We isolated primary human fetal brain endothelial cells from early and mid‐gestation cerebral microvessels and exposed them to glucocorticoids cortisol and dexamethasone in vitro.
Nikola Ivanovski, Phetcharawan Lye, Enrrico Bloise, Stephen G. Matthews   +3 more
wiley   +1 more source

Compactação do solo no crescimento radicular e produtividade da cultura do milho Effect soil compaction on root growth and maize yield [PDF]

, 2007
As modificações estruturais causadas no solo pelos diferentes sistemas de manejo podem resultar em maior ou menor compactação, que poderá interferir na resistência mecânica à penetração, densidade e porosidade do solo, influenciando o crescimento ...
Centurion, José Frederico, Freddi,Onã da Silva, Amauri Nelson Beutler, Beutler, Amauri Nelson [UNESP], Freddi, Onã da Silva, Aratani, Ricardo Garcia, Beutler, Amauri Nelson, Leonel, Cristian Luarte, José Frederico Centurion, Cristian Luarte Leonel, Beutler,Amauri Nelson, Centurion, José Frederico [UNESP], Aratani,Ricardo Garcia, Leonel,Cristian Luarte, Onã da Silva Freddi, Ricardo Garcia Aratani, Freddi, Onã da Silva [UNESP], Leonel, Cristian Luarte [UNESP], Aratani, Ricardo Garcia [UNESP], Centurion,José Frederico   +19 more
core   +1 more source