Results 71 to 80 of about 49,445 (241)

Hydrogeochemical characteristics of the River Sava watershed in Slovenia

Geologija, 2007
The River Sava is a typical HCO3- – Ca2+ – Mg2+ River. Total alkalinity increases in the part of the watershed composed of carbonate and clastic rocks, which are less resistant to weathering processes.
Tjaša Kanduč, Nives Ogrinc
doaj  

Consumption of Water Similar to Martian Water in Terms of Deuterium Content by Mammals Leads to the Development of an Adaptation Syndrome and Activation of Protective Mechanisms Against Stress

Frontiers in Bioscience-Elite
Background: Deuterium is unevenly distributed in natural waters, while the same applies to the content of deuterium in ice on Mars. Moreover, changes in the deuterium content of drinking water are known to affect the bodies of mammals.
Stanislav Kozin, Alexandr Kravtsov, Oksana Lyasota, Anna Dorohova, Vasily Ivlev, Elena Chikhirzhina, Arkady Moiseev, Veronica Nesterova, Polina Babenkova, Konstantin Popov, Liliya Fedulova, Stepan Dzhimak   +11 more
doaj   +1 more source

Cancer‐Associated BCL‐2 Mutants Reveal Mechanisms Towards Venetoclax Resistance

Advanced Science, EarlyView.
Venetoclax (VEN) resistance in chronic lymphocytic leukemia arises from diverse BCL2 mutations. We map mechanisms contributing to VEN resistance across common BCL‐2 variants. G101V and D103Y reduce drug binding and increase sequestration of pro‐apoptotic proteins. V156D blocks VEN allosterically.
Jonas Aufdermauer, Ian de Ridder, Mahjoobeh Ehsani, Marasim Khan, Justin Kale, Lukas P. Frenzel, David Andrews, Spyridoula Karamanou, Ana J. Garcia‐Saez, Geert Bultynck   +9 more
wiley   +1 more source

Deuterium

, 2019
Citation: 'deuterium' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.D01648 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
Jiping Liu, Xiaobo Liu
openaire   +2 more sources

Untangling Inositol (Pyro)Phosphate Biology Through Emerging Technologies

Advanced Science, EarlyView.
Inositol (pyro)phosphates represent a vital class of intracellular messengers that govern multiple biological processes. The last decade has experienced a surge of interest in the functions of this class of signaling molecules, primarily due to the introduction of several innovative analytical technologies.
Adolfo Saiardi, Mengsi Lu, Yue Zhang, Anuj Shukla, An‐Li Andrea Ko, Henning J. Jessen   +5 more
wiley   +1 more source

Elucidation of Lignin and Polysaccharide Linkages in Wheat Straw by 2H/13C Isotopic Tracer

BioResources, 2022
To elucidate chemical linkages between lignin and polysaccharides, the aqueous mixed solutions of coniferin-[α-13C], syringin-[α-13C], D-glucose-[6-2H], and phenylalanine ammonia-lyase inhibitor were injected into a living wheat stalk.
Yimin Xie, Xudong Chen, Kai Zhang, Sheng Cui, Gongxia Zhang   +4 more
doaj  

Synthesis and Use of Stable Isotope Enriched Retinals in the Field of Vitamin A

Molecules, 2010
The role of vitamin A and its metabolites in the life processes starting with the historical background and its up to date information is discussed in the introduction.
Johan Lugtenburg, Prativa B.S. Dawadi
doaj   +1 more source

Asymmetric Single‐Atom Catalysts Govern Diffusible and Non‐Diffusible Non‐Radical Pathways for Selective Degradation of Antibiotic Resistance Genes

Advanced Science, EarlyView.
Asymmetric single‐atom metal‐nitrogen‐carbon catalysts modulate the non‐radical pathway during peroxymonosulfate (PMS) activation. A fundamental contrast was revealed between diffusible singlet oxygen (1O2) and non‐diffusible electron‐transfer pathways (ETP) in antibiotic resistance gene (ARG) degradation.
Chen Gao, Jun Sun, Liang Zhang, Litao Lin, Zongfeng Wan, Bingcai Pan, Sheng Tang   +6 more
wiley   +1 more source

Water‐Derived Radical Species Initiate Six‐Electron Oxidation of Cyclic Ketones in Microdroplets

Angewandte Chemie, EarlyView.
Spontaneous six‐electron oxidation of cyclic ketones to yield dicarboxylic acids/keto acids is achieved in ethanol microdroplets containing about 2% water under ambient conditions without any metal salts, acids, or oxidants. Mechanistic studies show that trace amounts of water and molecular oxygen serve as active oxidants in this transformation ...
Muhammad Mujahid Ali, Manish Jana, William LeFever, Robert Graham Cooks   +3 more
wiley   +2 more sources

Plasma pulse induced dust release from tungsten co-deposited layer

Nuclear Fusion
Tungsten co-deposited layers in fusion devices are a significant potential source of plasma-contaminating dust. This study investigates the mechanisms of dust release from helium–tungsten (He–W) and deuterium–tungsten (D–W) layers under high-density ...
Dogyun Hwangbo, Shin Kajita, Sou Murakami, Yuki Hayashi, Hirohiko Tanaka, Thomas Morgan   +5 more
doaj   +1 more source