Results 41 to 50 of about 2,720 (298)

Comparison of methanol and isopropanol as wash solvents for determination of hair cortisol concentration in grizzly bears and polar bears

MethodsX, 2017
Methodological differences among laboratories are recognized as significant sources of variation in quantification of hair cortisol concentration (HCC).
Thomas Kroshko, Luciene Kapronczai, Marc R.L. Cattet, Bryan J. Macbeth, Gordon B. Stenhouse, Martyn E. Obbard, David M. Janz   +6 more
doaj   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Review of the united states fish and wildlife service’s 2017 endangered species act delisting rule for the greater yellowstone ecosystem grizzly bear

Frontiers in Conservation Science
The Greater Yellowstone Ecosystem grizzly bear (Ursus arctos horribilis) population and four other populations were listed as “threatened” in the lower 48 states by the US Fish and Wildlife Service (USFWS) on July 28, 1975, based on the 1973 Endangered ...
Craig L. Shafer
doaj   +1 more source

YlmG1 is localized exclusively to the chloroplast envelope membrane and is involved in preprotein translocation in Arabidopsis thaliana

FEBS Open Bio, EarlyView.
Cytosolically synthesized chloroplast preproteins are translocated across the outer and inner envelope membranes through translocons called TOC and TIC, respectively. In green algae and plants, the TIC core is composed of essential membrane proteins, Tic12, Tic20, and Tic214.
Mengyi Li, Xueyang Zhao, Masato Nakai
wiley   +1 more source

The skills required for transition to university and study in biological sciences: A student perspective

FEBS Open Bio, EarlyView.
Bioscience students were asked for their opinions on the value and teaching of skills. 204 responded that teamwork, time management and study skills are necessary to reach University, that scientific writing, research, laboratory and presentation skills are taught effectively during their studies, while other skills are gained inherently through study ...
Janella Borrell, Susan Crennell
wiley   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Whitebark pine, population density, and home-range size of grizzly bears in the greater yellowstone ecosystem. [PDF]

PLoS ONE, 2014
Changes in life history traits of species can be an important indicator of potential factors influencing populations. For grizzly bears (Ursus arctos) in the Greater Yellowstone Ecosystem (GYE), recent decline of whitebark pine (WBP; Pinus albicaulis ...
Daniel D Bjornlie, Frank T Van Manen, Michael R Ebinger, Mark A Haroldson, Daniel J Thompson, Cecily M Costello   +5 more
doaj   +1 more source

Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina, Anna Marcé‐Grau, Barbara Masotto, Marta Codina, Lamia BenJemaa, Yasmina Elaribi, Mónica Martinez‐Gallo, Roger Colobran, Angel Sanchez‐Montañez, Irene Valenzuela, Yoshiko Murakami, Alfons Macaya   +11 more
wiley   +1 more source

Comparing Space Use and Fecal Glucocorticoid Concentrations during and after the COVID-19 Closure to Investigate Visitor Effects in Multiple Species

Journal of Zoological and Botanical Gardens, 2022
We used the COVID-19 pandemic closure at the Saint Louis Zoo to examine visitor effects on space use and glucocorticoid levels in banteng, grizzly bears, polar bears, and western lowland gorillas.
Ashley N. Edes, Nathan C. Liu, Eli Baskir, Karen L. Bauman, Corinne P. Kozlowski, Helen L. Clawitter, David M. Powell   +6 more
doaj   +1 more source

Grizzly Bear in Danger [PDF]

Oryx, 1966
From 1949 to 1960 the barren-ground grizzly bear was totally protected in the Northwest Territories of Canada, with the result that numbers increased and so did their range. But pressure from trappers led in 1960 to an amendment legalising die killing of grizzlies in defence of life or property, and in 1964, despite the views of wildlife biologists and
openaire   +1 more source