Results 31 to 40 of about 287,127 (177)

Saúde pela força ou força pela saúde?

open access: yesRevista de Educação Física, 1932
Eis uma pergunta que se resume dois processos de desenvolvimento físico.[...]
Ilidio Romulo Colonia
doaj  

Overlap of nonbreeding wandering albatrosses with fisheries and implications for colony‐specific population trajectories at South Georgia

open access: yesConservation Biology, EarlyView.
Abstract Bycatch in fisheries is one of the most serious threats to pelagic seabirds, causing major population declines. Mitigation measures can reduce bycatch substantially, but many fisheries fail to apply best practices, and seabird mortality remains high.
V. Warwick‐Evans   +2 more
wiley   +1 more source

Odonata de los Esteros del Iberá (Corrientes, Argentina): inventario preliminar y biodiversidad [PDF]

open access: yes, 2008
A preliminary inventory of the Odonata from Iberá Wetlands and their area of influence (Corrientes, Argentina) is presented. Different kinds of environments were surveyed in seven localities.
Garré, Analía   +7 more
core   +1 more source

A new South American darter (Crenuchidae: Characidium) from rivers draining the Northeastern Mata Atlantica Freshwater Ecoregion, Brazil: morphological and molecular evidence

open access: yesJournal of Fish Biology, EarlyView.
Abstract Characidium tupi, a new species from rivers draining the southern portion of the Northeastern Mata Atlantica Freshwater Ecoregion, is described. The new species can be distinguished from all congeners by its colour pattern, including 7–14 dark bars enlarged and more conspicuous on their ventralmost portion, resulting in a longitudinal series ...
Angela M. Zanata   +1 more
wiley   +1 more source

Effects of magnetohydrodynamics matter density fluctuations on the solar neutrino resonant spin-flavor precession [PDF]

open access: yes, 1998
Taking into account the stringent limits from helioseismology observations on possible matter density fluctuations described by magnetohydrodynamics theory, we find the corresponding time variations of solar neutrino survival probability due to the ...
Colonia, J. H.   +3 more
core   +1 more source

Allometric patterns in Rhamphorhynchus muensteri and their role in the paleoecology, life habits, and taxonomic framework of pterosaurs

open access: yesJournal of Anatomy, EarlyView.
The Graphical Abstract ilustrates the different allometric pattern within different Pterosauria groups, highlighting how the allometry influences the flight and habits of Pterosauria. Abstract Pterosaurs were the first vertebrates to achieve powered flight, a result of various unique anatomical adaptations, and significant morphological diversity ...
Gabriela Menezes Cerqueira   +6 more
wiley   +1 more source

A Fixed Effects Analysis of the Adoption of New Technologies in the Cuban Sugar Industry, 1899-1929 [PDF]

open access: yes, 1992
This paper focuses on the relationship between technical and institutional changes in Cuba a leader in the use of continuousprocess technologies being applied to cane sugar manufacture in the first three decades of the twentieth century. Using a fixed
Dye, Alan
core   +1 more source

Sedimentary biogeochemical provinces in the northern limit of the oxygen minimum zone from the northeastern Mexican Pacific

open access: yesSedimentology, EarlyView.
ABSTRACT Continental margins are reservoirs of materials of terrestrial and marine origin, and they play a crucial role in understanding the spatial and temporal variability of biogeochemical cycles. This, in turn, provides insights into the development and intensity of oxygen minimum zones (OMZs).
Alberto Sánchez
wiley   +1 more source

Indigenous and introduced species of the Bemisia tabaci complex in sweet potato crops from Argentina [PDF]

open access: yes, 2014
La batata (Ipomoea batatas (L.) Lam) es uno de los cultivos más importantes en el mundo. Recientemente se observó una severa sintomatología viral en cultivos de la región pampeana argentina, en la que están identificados begomovirus y crinivirus, ambos ...
Alemandri, V.   +3 more
core  

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