Results 41 to 50 of about 20,341 (302)

Excerpts from the Novel, Bear War-den [PDF]

open access: yes, 2018
A woman park warden who works in Rocky Mountain National Park spends her time on such tasks as bear patrol, locating tourists who are lost or in other physical danger, and policing park rules.
Demuth, Vivian
core   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

open access: yesMolecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung   +17 more
wiley   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

Grizzly and polar bears as nonconsumptive cultural keystone species

open access: yesFACETS, 2021
Grizzly bears and polar bears often serve as ecological “flagship species” in conservation efforts, but although consumptively used in some areas and cultures they can also be important cultural keystone species even where not hunted.
Douglas Clark   +8 more
doaj   +1 more source

Spengler's List: Screenwriting, the Wilderness and the Civilising Death of the Arts [PDF]

open access: yes, 1994
A lament upon the dying of the art of screenwriting, alongside the other 'liberal arts', provoked by the pondering of two texts: Oswald Spengler's Decline of the West and John Livingston's The Fallacy of Wildlife ...
Cameron, Evan Wm.
core   +1 more source

Grizzly Bear in Danger [PDF]

open access: yesOryx, 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

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

open access: yesFEBS 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   +4 more
wiley   +1 more source

Patterns and correlates of claims for brown bear damage on a continental scale [PDF]

open access: yes, 2017
Wildlife damage to human property threatens human-wildlife coexistence. Conflicts arising from wildlife damage in intensively managed landscapes often undermine conservation efforts, making damage mitigation and compensation of special concern for ...
Agnieszka, Olszańska   +22 more
core   +1 more source

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

open access: yesFEBS 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

A time geographic approach to delineating areas of sustained wildlife use [PDF]

open access: yes, 2015
Geographic information systems (GIS) are widely used for mapping wildlife movement patterns, and observed wildlife locations are surrogates for inferring on wildlife movement and habitat selection.
Laberee, Karen   +3 more
core   +2 more sources

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