Results 71 to 80 of about 283,051 (325)

Neutrophil deficiency increases T cell numbers at the site of tissue injury in mice

FEBS Letters, EarlyView.
In wild‐type mice, injury or acute inflammation induces neutrophil influx followed by macrophage accumulation. Mcl1ΔMyelo (neutrophil‐deficient) mice lack neutrophils, and in response to muscle injury show fewer macrophages and exhibit strikingly elevated T‐cell numbers, primarily non‐conventional “double‐negative” (DN) αβ and γδ T cells.
Hajnalka Halász, Albert Bálint Papp, Lukács Sándor Lesinszki, Attila Mócsai, Tamás Varga, László Nagy, Péter Gogolák   +6 more
wiley   +1 more source

Sea-ice indicators of polar bear habitat [PDF]

The Cryosphere, 2016
Nineteen subpopulations of polar bears (Ursus maritimus) are found throughout the circumpolar Arctic, and in all regions they depend on sea ice as a platform for traveling, hunting, and breeding.
H. L. Stern, K. L. Laidre, K. L. Laidre
doaj   +1 more source

Observed Concentration Budgets of Arctic and Antarctic Sea Ice

Journal of Climate, 2016
Abstract In recent decades, Antarctic sea ice has expanded slightly while Arctic sea ice has contracted dramatically. The anthropogenic contribution to these changes cannot be fully assessed unless climate models are able to reproduce them.
Holland, Paul R., Kimura, Noriaki
openaire   +3 more sources

Ergothioneine supplementation improves pup phenotype and survival in a murine model of spinal muscular atrophy

FEBS Letters, EarlyView.
Spinal muscular atrophy (SMA) is a genetic disease affecting motor neurons. Individuals with SMA experience mitochondrial dysfunction and oxidative stress. The aim of the study was to investigate the effect of an antioxidant and neuroprotective substance, ergothioneine (ERGO), on an SMNΔ7 mouse model of SMA.
Francesca Cadile, Daniela Ratto, Giorgia Rastelli, Ottavia Eleonora Ferraro, Caterina Temporini, Sunil Kumar, Simona Boncompagni, Paola Rossi, Monica Canepari   +8 more
wiley   +1 more source

Statistical Modeling of Arctic Sea Ice Concentrations for Northern Sea Route Shipping

Applied Sciences, 2023
The safe and efficient navigation of ships traversing the Northern Sea Route demands accurate information regarding sea ice concentration. However, the sea ice concentration forecasts employed to support such navigation are often flawed.
Da Wu, Wuliu Tian, Xiao Lang, Wengang Mao, Jinfen Zhang   +4 more
doaj   +1 more source

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Molecular-dynamics simulation of clustering processes in sea-ice floes

, 2011
In seasonally ice-covered seas and along the margins of perennial ice pack, i.e. in regions with medium ice concentrations, the ice cover typically consists of separate floes interacting with each other by inelastic collisions.
Herman, Agnieszka
core   +1 more source

Impact of melt ponds on Arctic sea ice simulations from 1990 to 2007 [PDF]

, 2012
The extent and thickness of the Arctic sea ice cover has decreased dramatically in the past few decades with minima in sea ice extent in September 2007 and 2011 and climate models did not predict this decline.
Bitz, Bitz, Brodeau, Collins, Curry, Daniel L. Feltham, Daniela Flocco, David Schroeder, Eicken, Eicken, Eisenman, Elizabeth C. Hunke, Feltham, Fetterer, Flocco, Flocco, Giles, Giles, Golden, Grenfell, Hibler, Holland, Hunke, Hunke, Intergovernmental Panel on Climate Change, Kern, Kwok, Laxon, Lipscomb, Lüthje, Markus, Maslanik, Maykut, Meier, Miller, Perovich, Perovich, Perovich, Perovich, Perovich, Perovich, Perovich, Polashenski, Rothrock, Rösel, Schweiger, Scott, Seo, Skyllingstad, Stroeve, Taylor, Thorndike, Tschudi   +52 more
core   +1 more source

Single cis‐elements in brassinosteroid‐induced upregulated genes are insufficient to recruit both redox states of the BIL1/BZR1 DNA‐binding domain

FEBS Letters, EarlyView.
Phytohormone brassinosteroid‐induced gene regulation by the transcription factor BIL1/BZR1 involves redox‐dependent DNA‐binding alternation and interaction with the transcription factor PIF4. The reduced BIL1/BZR1 dimer binds preferred cis‐elements, while oxidation alters its oligomerization state and disrupts DNA‐binding ability.
Shohei Nosaki, Masae Ohtsuka, Takeshi Nakano, Masaru Tanokura, Takuya Miyakawa   +4 more
wiley   +1 more source

A New Perspective on Four Decades of Changes in Arctic Sea Ice from Satellite Observations

Remote Sensing, 2022
Arctic sea ice characteristics have been changing rapidly and significantly in the last few decades. Using a long-term time series of sea ice products from satellite observations—the extended AVHRR Polar Pathfinder (APP-x)—trends in sea ice concentration,
Xuanji Wang, Yinghui Liu, Jeffrey R. Key, Richard Dworak   +3 more
doaj   +1 more source