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Mostrando ítems 21-30 de 20774
A structure-activity relationship study of quinone compounds with trypanocidal activity
(Elsevier B.V., 2005-04-01)
A set of 25 quinone compounds with anti-trypanocidal activity was studied by using the density functional theory (DFT) method in order to calculate atomic and molecular properties to be correlated with the biological ...
Relative abundance and activity patterns of terrestrial mammalian species in Barra del Colorado Wildlife Refuge, Costa Rica
(Universidad Estatal a Distancia de Costa Rica, 2016)
Temperature induces activity reduction in a Neotropical ungulate
(Oxford Univ Press Inc, 2021-09-23)
Because global climate change results in increasingly extreme temperatures and more frequent droughts, behavioral thermoregulation is one avenue by which species may adjust. Changes in activity patterns in response to ...
Day and night in the subterranean: measuring daily activity patterns of subterranean rodents (Ctenomys aff. knighti) using bio-logging
(Oxford University Press, 2019-09)
While most studies of the impacts of climate change have investigated shifts in the spatial distribution of organisms, temporal shifts in the time of activity is another important adjustment made by animals in a changing ...
Coupling of respiratory and sympathetic activities in rats submitted to chronic intermittent hypoxia
(Elsevier B.V., 2014-01-01)
The respiratory modulation of sympathetic activity relies on the balance between excitatory and inhibitory inputs from the brainstem respiratory network to presympathetic neurons of the rostral ventrolateral medulla. This ...
Antibacterial potential of flavonoids with different hydroxylation patterns
(2015-01-01)
The antibacterial activity of ten flavonoids, with variations in the hydroxylation pattern, was assayed in this study with the aim of investigating the influence of the hydroxyl groups of flavonoids on the evaluated activity. ...
Structure activity relationship between calculated molecular properties and biological activities against Leishmania donovani of the natural neolignan analogues studied with pattern recognition techniques: a possible explanation for the activity/inactivity of some neolignans
(Elsevier Science BvAmsterdamHolanda, 2001)
Calling activity patterns in an anuran assemblage: the role of seasonal trends and weather determinants
(2008)
Calling activity of anuran assemblages were related to seasonal changes in weather factors such as temperature and rainfall. We evaluated the suitability of these variables as determinants of activity of an assemblage and ...