Results 51 to 60 of about 13,124,268 (222)
Red Algal Sulfated Galactan Binds and Protects Neural Cells from HIV-1 gp120 and Tat
The potential neuroprotective capacity of four different sulfated glycans: Botryocladia occidentalis-derived sulfated galactan (BoSG) (MW > 100 kDa), Lytechinus variegatus-derived sulfated fucan (LvSF) (MW~90 kDa), high-molecular weight dextran sulfate ...
Vitor H. Pomin +5 more
doaj +1 more source
Embryonic development is arguably the most complex process an organism undergoes during its lifetime, and understanding this complexity is best approached with a systems-level perspective.
John D. Hogan +16 more
semanticscholar +1 more source
Loss, persistence and reversal of phenotypic traits
ABSTRACT The irreversibility of complex trait loss has long been a tenet of evolutionary biology. However, this idea is increasingly at odds with the numerous documented exceptions across the Tree of Life. We synthesise this growing body of evidence across a diverse array of taxa and traits, exploring the evolutionary conditions that enable ...
Giobbe Forni +4 more
wiley +1 more source
Rhopaloceras variegatus Carriker 1955
<i>Rhopaloceras variegatus</i> Carriker, 1955 <p> <i>Rhopaloceras variegatus</i> Carriker, 1955: 8, figs 5a, 6a.</p> <p>Material examined: 1♀ (MZUSP #3230), Roteiro (09°50'S; 35°58'W), Alagoas,
Silveira, Luís F., Valim, Michel P.
core +1 more source
Este trabajo se realizó en las cinco subregiones del Departamento de Sucre, durante los meses de febrero y junio de 2009, con el fin de caracterizar el hábitat de Bradypus variegatus y su utilización por parte de esta especie.
ALCIDES SAMPEDRO-MARÍN +2 more
doaj +1 more source
We screened for antibodies to 16 arboviruses in four populations of free-ranging sloths in Costa Rica. Blood samples were taken from 16 Hoffman's two-toed sloths (HTSs; Choloepus hoffmanni) and 26 brown-throated sloths (BTSs; Bradypus variegatus) over a ...
Scott Medlin +13 more
semanticscholar +1 more source
Humans are not unique: difficult birth is common in placental mammals
ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley +1 more source
Studying Neotropical wild populations is of particular interest. While this region is facing an escalating habitat degradation, it also has remarkable biodiversity levels, whose origin we are only beginning to understand. A myriad of processes might have
Marques Silva, Sofia +6 more
core +1 more source
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri +6 more
wiley +1 more source
Los rastros del megaterio comparación anatómica entre eremotherium rusconii y bradypus variegatus [PDF]
Basados en una comparación anatómica, entre Eremotherium rusconii (Megaterio Colombiano) y Bradypus variegatus (oso perezoso) y una revisión de la literatura se buscaron diferencias y similitudes en un intento por explicar la extinción de E. rusconii. Se
Hoyos, Manuel +3 more
core

