Results 11 to 20 of about 391 (148)

Survival and abundance of polar bears in Alaska’s Beaufort Sea, 2001–2016 [PDF]

open access: yesEcology and Evolution, Volume 11, Issue 20, Page 14250-14267, October 2021., 2021
As ice‐adapted apex predators, polar bears (Ursus maritimus) are challenged to cope with the ongoing habitat degradation and changes in their prey base driven by food web response to climate warming. We investigated the population dynamics of polar bears in Alaska's southern Beaufort Sea (SBS) using a multistate CJS mark–recapture model.
Jeffrey F. Bromaghin   +4 more
wiley   +2 more sources

Advancements in Global Phosphoproteomics Profiling: Overcoming Challenges in Sensitivity and Quantification [PDF]

open access: yesPROTEOMICS, Volume 25, Issue 1-2, January 2025.
ABSTRACT Protein phosphorylation introduces post‐genomic diversity to proteins, which plays a crucial role in various cellular activities. Elucidation of system‐wide signaling cascades requires high‐performance tools for precise identification and quantification of dynamics of site‐specific phosphorylation events.
Gul Muneer   +2 more
wiley   +2 more sources

Serum Adropin Levels in Patients with Rheumatoid Arthritis [PDF]

open access: yesLife, 2022
Adropin is a secretory protein that mainly modulates metabolic homeostasis and endothelial function. There is growing evidence supporting association of adropin with various inflammatory diseases, including rheumatoid arthritis (RA).
Petra Simac   +5 more
doaj   +2 more sources

A Potential Role of Adropin in Inflammatory Rheumatic Diseases—What Do We Know So Far? [PDF]

open access: yesBiomedicines
Adropin is a regulatory peptide hormone involved in metabolic homeostasis, cardiovascular protection, and immune modulation. Recent evidence suggests that adropin plays a role in the pathophysiology of autoimmune rheumatic diseases (ARDs) by influencing ...
Petra Simac   +3 more
doaj   +2 more sources

Long‐term assessment of relationships between changing environmental conditions and the physiology of southern Beaufort Sea polar bears (Ursus maritimus)

open access: yesGlobal Change Biology, Volume 29, Issue 19, Page 5524-5539, October 2023., 2023
Climate change is influencing polar bear (Ursus maritimus) habitat, diet, and behavior, but the effects of these changes on their physiology is not well understood. Using data from blood samples collected over nearly 40 years, we evaluated associations between biomarkers and climate and weather as well as behavior and demographic co‐variates on ...
Tricia L. Fry   +6 more
wiley   +1 more source

High winds and melting sea ice trigger landward movement in a polar bear population of concern

open access: yesEcosphere, Volume 14, Issue 2, February 2023., 2023
Abstract Some animal species are responding to climate change by altering the timing of events like mating and migration. Such behavioral plasticity can be adaptive, but it is not always. Polar bears (Ursus maritimus) from the southern Beaufort Sea subpopulation have mostly remained on ice year‐round, but as the climate warms and summer sea ice ...
Annie Kellner   +4 more
wiley   +1 more source

Current‐Dependent Lithium Metal Growth Modes in “Anode‐Free” Solid‐State Batteries at the Cu|LLZO Interface

open access: yesAdvanced Energy Materials, Volume 13, Issue 1, January 6, 2023., 2023
This work demonstrates a novel operando scanning electron microscopy (SEM) technique to visualize the lithium growth at the Cu|LLZO interface within so‐called “anode‐free” cell designs. Detailed SEM and image analysis shows a clear dependence of the growth morphology on applied current density and current collector thickness.
Till Fuchs   +6 more
wiley   +1 more source

Soil texture and pH affect soil CO2 efflux in hardwood floodplain forests of the lower middle Elbe River

open access: yesEuropean Journal of Soil Science, Volume 74, Issue 1, January–February 2023., 2023
Abstract Floodplain ecosystems play a significant role in the global carbon (C) cycle, particularly due to their C sink potential in hardwood floodplain forests. However, in these forests, interactions between a heterogeneous micro‐relief and anthropogenic landscape changes make estimating C loss through soil CO2 efflux difficult.
Adrian Heger   +4 more
wiley   +1 more source

Virtual reality enhances safety training in the maritime industry: An organizational training experiment with a non‐WEIRD sample

open access: yesJournal of Computer Assisted Learning, Volume 38, Issue 4, Page 1127-1140, August 2022., 2022
Abstract Objective Many industries struggle with training dynamic risk assessment, and how to bridge the gap between safety training and behavior in real life scenarios. In this article, we focus on dynamic risk assessment during a mooring operation and investigate the potential value of using immersive virtual reality (VR) simulations compared to ...
Guido Makransky, Sara Klingenberg
wiley   +1 more source

The acute physiological response of polar bears to helicopter capture

open access: yesThe Journal of Wildlife Management, Volume 86, Issue 5, July 2022., 2022
The high levels of polar bear activity and body temperature that occur during helicopter capture operations are similar to the levels that occur during the most intense events of their natural behavior. Warm ambient temperatures are a primary risk factor for polar bears during helicopter darting, and future studies should address stress leukograms as a
John P. Whiteman   +6 more
wiley   +1 more source

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