Results 121 to 130 of about 120,356 (355)

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng, Zhicheng Wang, Xin Zhou, Shuya Wang, Xiaojing Shi, Tingli Xiong, Ruishi Li, Yuting Lin, Zhen Chen, Jiawen Wei, Fei Li, Jinwen Ge, Kelong Ai, Chong Liu, Guiming Deng   +14 more
wiley   +1 more source

Processes of crevasse formation and the dynamics of calving glaciers : a study at Breiđamerkurjökull

, 2009
A new model proposed by Benn et al. (2006, 2007) explains the dynamics of calving glaciers based on a new sliding law and a calving criterion modified from a crevasse depth model. In this thesis three key elements of this model are tested: 1) the role
Mottram, Ruth
core  

Guidelines for Detecting the Foodborne Antibiotic‐Resistant Bacteria

AgriFood: Journal of Agricultural Products for Food, EarlyView.
ABSTRACT Foodborne antibiotic‐resistant bacteria threaten global public health and the economic. Standardized detection methods are crucial for effective prevention and control. Researchers encounter difficulties in choosing suitable techniques due to the variety of available approaches and the intricate nature of resistance mechanisms.
Yuanye Zeng, Fengxia Yang
wiley   +1 more source

Assessing the catastrophic break-up of Briksdalsbreen, Norway, associated with rapid climate change

, 2011
Recent research has raised concerns about the potential influence of rapid climate change on the stability of major ice sheets. The behaviour of glaciers is determined largely by the processes and conditions operating at their base.
Kathryn C. Rose, Vaughan-Hirsch, David, Rose, Kathryn C., Hart, Jane K., Jane K. Hart, Waller, Richard I., Waller, R.I., Martinez, Kirk, Kirk Martinez, Vaughan-Hirsch, D., David Vaughan-Hirsch, Martinez, K., Richard I. Waller   +12 more
core   +1 more source

Narrowing of glacial isthmus between Sørkapp Land and Torell Land, southern Spitsbergen, 1900–2023

Journal of Maps
The paper provides a comprehensive overview of the transformation of the glacial isthmus between Sørkapp Land (southern peninsula) and the remainder of Spitsbergen from 1900 to 2023.
Michał Pawłowski, Krzysztof Ostafin
doaj   +1 more source

Modeling debris-covered glaciers: response to steady debris deposition

, 2016
. Debris-covered glaciers are common in rapidly eroding alpine landscapes. When thicker than a few centimeters, surface debris suppresses melt rates. If continuous debris cover is present, ablation rates can be significantly reduced leading to increases ...
L. Anderson, R. Anderson
semanticscholar   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

American Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording, Erik W. Ertsgaard, David E. Giblin, Iris H. Dimpsey, Owen B. Bard   +4 more
wiley   +1 more source

Optimization of Saponification Process for Quantification of Individual and Total Tocopherols and Phytosterols in Canola Oil Refining By‐Products

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT In this study, saponification variables were optimized using a face‐centred central composite design‐response surface methodology. The variables included reaction temperature (50°C–120°C), reaction time (30–180 min), KOH concentration (0.5–3 M) and pyrogallol concentration (0–1% w/v).
Milad Kazemi, Paul Prenzler, Lachlan Schwarz, Michael Loughlin, Randy Adjonu   +4 more
wiley   +1 more source

Representing moisture fluxes and phase changes in glacier debris cover using a reservoir approach

, 2014
Due to the complexity of treating moisture in supraglacial debris, surface energy balance models to date have neglected moisture infiltration and phase changes in the debris layer.
Essery, Richard, Bush, A. B.G., A. B. G. Bush, Maussion, F., Brock, B. W., Nicholson, Lindsey, Bush, Andrew, L. I. Nicholson, Collier, Emily, F. Maussion, Maussion, Fabien, Collier, E., Nicholson, L. I., R. Essery, Brock, Benjamin, Essery, R., E. Collier, B. W. Brock   +17 more
core   +1 more source

Glacial debris cover and melt water production for glaciers in the Altay, Russia [PDF]

, 2011
Glaciers are important water storages on a seasonal and long-term time scale. Where high mountains are surrounded by arid lowlands, glacier runoff is an important source of water during the growing season.
Narozhny, Y., W. Hagg, A. Lambrecht, Lambrecht, A., Mayer, C., Hagg, Wilfried, Y. Narozhny, C. Mayer   +7 more
core   +1 more source