Results 61 to 70 of about 578,107 (355)

Role of the Setae in an Ectoparasitic Seal Louse in Reducing Surface Drag: Numerical Modeling Approach

open access: yesAdvanced Theory and Simulations, EarlyView.
The seal louse Echinophthirius horridus has uniquely shaped setae that may reduce drag during its host's dives. Using numerical simulations, this study demonstrates that their natural inclination promotes vortex formation, minimizing friction and energy loss. These findings provide insights into biological surface adaptations and may inspire the design
Anika Preuss   +3 more
wiley   +1 more source

Environment and Economic Activity of the Pestretsy 2 Site Inhabitants on the Mesha River

open access: yesПоволжская археология, 2016
Preliminary results of integrated archaeological and paleo-ecological research in the multilayer site Pestretsy 2 on the Mesha river (Middle Volga region) are discussed in the article.
Galimova Madina Sh.   +4 more
doaj  

Patterns and Processes of Genomic Evolution Inferred From the Ten Smallest Vertebrate Genomes

open access: yesAdvanced Science, EarlyView.
By integrating phylogenetic relationships derived from nuclear DNA with population genetic analyses across ten pufferfish species, the genetic differentiation mechanisms underpinning the radiative speciation of the most compact vertebrate genomes has elucidated.
Kaiqiang Liu   +22 more
wiley   +1 more source

Feathered diplomacy: when birds become main factors of research design and geography on Vigur Island

open access: yesRivista Italiana di Ornitologia - Research in Ornithology
Vigur Island, situated in Iceland’s Westfjords, is renowned for its diverse avian species, such as Atlantic Puffins and Black Guillemots, and its marine inhabitants including Harbour and Grey Seals.
David Pierre Milesi-Gaches
doaj   +1 more source

Zoologie et philologie dans les grands traités ichtyologiques renaissants

open access: yesKentron, 2013
Basing his study on the greatest treatises in ichthyology of latest medieval times and beginning of Renaissance (Hortus sanitatis and works of Paolo Giovio, Petrus Gyllius, Pierre Belon, Edward Wotton, Ippolito Salviani ...
Arnaud Zucker
doaj   +1 more source

Jeb Byers, Associate Professor of Zoology, travels to Australia [PDF]

open access: yes, 2008
Professor James (Jeb) Byers spent the 2007-08 academic year in Australia conducting research on a highly invasive alga ...
Byers, James E
core   +1 more source

A Novel Cultivation System for Germ Cell Proliferation and Sustaining Whole Testicular Niche

open access: yesAdvanced Science, EarlyView.
A hydrogel microneedle‐based system enables whole testicular cultivation, supporting spermatogonial proliferation and enhancing spermatogenesis in vitro. This ‘whole testicular spermatogonia pool’ (WTSP) significantly increases spermatid production and fertility potential in mice. This system also promotes spermatogonial expansion in human fetal testes,
Yu Xia   +14 more
wiley   +1 more source

Freshwater gastropods in the Northern littoral mesoregion of Espírito Santo, Brazil

open access: yesActa Scientiarum: Biological Sciences, 2017
  Studies on the distribution of molluscs in Brazilhave been conducted since the beginning of the twentieth and the knowledge of the species distributed in the country represent important findings, which contribute to the understanding of human diseases ...
Marco Antônio Andrade de Souza
doaj   +1 more source

Introduction [PDF]

open access: yes, 1999
This volume of twelve specially commissioned essays about species draws on the perspectives of prominent researchers from anthropology , botany, developmental psychology , the philosophy of biology and science, protozoology, and zoology .
Wilson, Robert A.
core  

FOXQ1 Regulates Brain Endothelial Mitochondrial Function by Orchestrating Calcium Signaling and Cristae Morphology

open access: yesAdvanced Science, EarlyView.
FOXQ1 emerges as a master transcriptional regulator of brain endothelial metabolism, orchestrating mitochondrial function through dual control of calcium signaling and cristae organization. This study reveals that brain endothelial cells rely on oxidative phosphorylation rather than glycolysis alone, challenging the current metabolic paradigm and ...
Wenzheng Zou   +8 more
wiley   +1 more source

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