Results 41 to 50 of about 5,263 (115)

Ten simple rules to follow when cleaning occurrence data in palaeobiology

open access: yesPalaeontology, Volume 68, Issue 5, September/October 2025.
Abstract Large datasets of fossil occurrences, often downloaded from online community‐maintained databases, are a vital resource for understanding broad‐scale evolutionary patterns, such as how biodiversity has changed through time and space. Such datasets, however, are not infallible and must be ‘cleaned’ of inaccurate, incomplete, or duplicate data ...
Lewis A. Jones   +9 more
wiley   +1 more source

Simulação numérica de movimento de água em solo não-saturado Numerical simulation of water movement in an unsaturated soil

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2003
Neste trabalho, o método de volumes finitos foi utilizado com esquema de discretização mais elaborado, chamado Flux-Spline, a fim de simular numericamente problemas unidimensionais não lineares de infiltração de água em solo hidraulicamente homogêneo não-
Paulo C. Oliveira, José L. Lima
doaj   +1 more source

The Occurrence Variability of Severe Scintillation and Range Spread F From the Varying Nature of Large‐to‐Meso‐Scale‐Wave‐Structures: Observations and Simulation

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 6, June 2025.
Abstract The occurrence variability on a day‐to‐day basis of severe S4 scintillation and range‐spread F (RSF) which are the manifestations of the most robust dynamical spread F phenomenon in the nighttime equatorial‐low‐latitude ionosphere, remains intriguing to date. The complex nature of large‐to‐meso‐scale‐wave‐structure (LSWS) that results from the
B. C. Amadi   +2 more
wiley   +1 more source

Further diffusion tensor imaging contribution in horizontal gaze palsy and progressive scoliosis Contribuição adicional das imagens por tensores de difusão em paralisia do olhar conjugado horizontal associada a escoliose progressiva

open access: yesArquivos de Neuro-Psiquiatria, 2009
In two siblings with clinical diagnosis of horizontal gaze palsy associated with progressive scoliosis (HGPPS) we could demonstrate by diffusion tensor imaging: (1) An anterior displacement of the transverse pontine fibers; (2) Posterior clumping of the ...
Maria Conceptión García Otaduy   +6 more
doaj   +1 more source

Esquema de discretização Flux-Spline aplicado à secagem, em meio poroso capilar Flux-Spline discretization scheme applied to drying in capillary porous media

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2003
Este trabalho foi desenvolvido com o objetivo de se apresentar a aplicação de um esquema de discretização mais eficiente para volumes finitos, denominado Flux-Spline utilizando-se, para tal, de dois casos de transporte difusivo de umidade e calor ...
Paulo C. Oliveira, José L. Lima
doaj   +1 more source

Spatial predictors of landowners' engagement in the restoration of the Brazilian Atlantic Forest

open access: yesPeople and Nature, Volume 7, Issue 1, Page 247-264, January 2025.
Abstract Forest restoration can potentially contribute to multiple global sustainable development goals. Yet, little is known about the factors associated with local actors' choice to engage in restoration, limiting the development of effective scaling strategies.
Thomas Pienkowski   +8 more
wiley   +1 more source

Análise da hidratação de grãos de alpiste

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2015
Neste trabalho se objetivou estudar o fenômeno de hidratação em grãos de alpiste (Phalaris canariensis L.) em diferentes temperaturas. Foram utilizados grãos secos de alpiste, embebidos em água destilada, nas temperaturas de 10, 25 e 45 °C.
Jemima F. Lisbôa   +4 more
doaj   +1 more source

Plant antagonistic facilitation across environmental gradients: a soil‐resource ecosystem engineering model

open access: yesNew Phytologist, Volume 244, Issue 2, Page 670-682, October 2024.
Summary Theory questions the persistence of nonreciprocal interactions in which one plant has a positive net effect on a neighbor that, in return, has a negative net impact on its benefactor – a phenomenon known as antagonistic facilitation. We develop a spatially explicit consumer‐resource model for belowground plant competition between ecosystem ...
Ciro Cabal   +2 more
wiley   +1 more source

Chegada e difusão da pílula anticoncepcional no Brasil, 1962-1972

open access: yesRevista Brasileira de História da Ciência, 2016
O objetivo do presente trabalho foi explorar aspectos conceituais e historiográficos relacionados à difusão da pílula anticoncepcional, especialmente entre as usuárias potenciais, na primeira década após sua introdução, em 1962, no estado de São Paulo ...
Joelma Ramos Santana, Silvia Waisse
doaj   +1 more source

Nonphotochemical quenching kinetics GWAS in sorghum identifies genes that may play conserved roles in maize and Arabidopsis thaliana photoprotection

open access: yesThe Plant Journal, Volume 119, Issue 6, Page 3000-3014, September 2024.
SUMMARY Photosynthetic organisms must cope with rapid fluctuations in light intensity. Nonphotochemical quenching (NPQ) enables the dissipation of excess light energy as heat under high light conditions, whereas its relaxation under low light maximizes photosynthetic productivity.
Seema Sahay   +6 more
wiley   +1 more source

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