Results 51 to 60 of about 591,166 (254)
FACETS, 2023 Wildlife conservation is informed by detailed understanding of species demographics, habitat use, and interactions with environmental drivers. Challenges to collecting this information, particularly in remote places and on widely ranging species, can ...
Alexandra Langwieder +10 more
doaj +1 more source
, 2010 Blood samples from a total of 460 polar bears (Ursus maritimus) from various Arctic regions, but excluding the USSR, were collected during the period 1967-1981 to study electrophoretic variation in different proteins.
Larsen, Thor +3 more
core +1 more source
Molecular Oncology, EarlyView.This study integrates publicly available transcriptomic datasets to identify molecular signatures associated with response to neoadjuvant chemoradiotherapy in locally advanced rectal cancer. By analyzing a combination of multiple cohorts with bioinformatics approaches, we reveal biological pathways and immune‐related features that may improve ...
Aleksandra Stanojevic +10 more
wiley +1 more source
Polar bear attack on a juvenile narwhal
Fauna Norvegica, 1990 A juvenile female narwhal Monodon monoceros landed at Pond Inlet had several sets of scratches on the posterior part of the body. They were probably made by a polar bear Ursus maritimus in the course of an unsuccessful attack.
Michael C.S. Kingsley
doaj +1 more source
Guest editorial—the ballyhoo over polar bears
, 2009 Critics have said that there’s little or no justification for the focus that polar bears (Ursus maritimus) have received as a threatened species. Recent studies project dramatic reductions in polar bear numbers in just a few decades, in concert with the ...
Vongraven, Dag
core +1 more source
Molecular Oncology, EarlyView.Taxanes are widely used chemotherapeutics whose effects on cellular mechanics remain poorly understood. We show that paclitaxel induces rapid cellular contraction by promoting GEF‐H1 dissociation from microtubules and non‐muscle myosin II activation through RhoA/ROCK.
Gloria Asensio‐Juárez +5 more
wiley +1 more source
Ways of Seeing Polar Bears in Fantasy Films, Fiction and Folklore
TraditionesThe polar bear (Ursus maritimus) has had many archetypal functions throughout time and across cultures and has been a key character within traditional tales and mythologies across the Arctic regions.
Lizanne Henderson
doaj +1 more source
Polar Bear Harvest Patterns Across the Circumpolar Arctic
Frontiers in Conservation Science, 2022 Wildlife harvest remains a conservation concern for many species and assessing patterns of harvest can provide insights on sustainability and inform management. Polar bears (Ursus maritimus) are harvested over a large part of their range by local people.
Dag Vongraven +4 more
doaj +1 more source
Molecular Oncology, EarlyView.This study identifies ARHGAP5, in addition to the frequently mutated ARHGAP35, as significantly mutated in endometrial cancer. Mutations in both genes co‐occur and are associated with their correlated downregulation. Functional CRISPR studies show that both paralogs regulate similar pathways, including actin cytoskeleton organization.
Mathilde Pinault +12 more
wiley +1 more source
Polar bears killed in Svalbard 1987–1992
, 1993 A total of 26 polar bears have been killed in Svalbard since January 1987. Fifteen of these cases were self defense, four precautionary measures, six acts of mercy and one unknown.
Gjertz, Ian +2 more
core +1 more source