Results 101 to 110 of about 8,389 (250)

Influence of feed additive “Butaselmevit-Plus” on antioxidant status of rats in conditions of oxidative stress

Науковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Гжицького. Серія: Сільськогосподарські науки, 2019
The purpose of the work was to investigate the effect of the feed supplement “Butaselmevit Plus” on the antioxidant status of the organism in rats under conditions of oxidative stress.
T. V. Martyshuk, B. V. Gutyj
doaj   +1 more source

A Sequential Catalytic Carbonation–Hydrolysis–Diol Dehydrogenation Reaction of Epoxides

ChemPlusChem, EarlyView.
A sequential/cascade carbonation–hydrolysis–diol dehydrogenation reaction of epoxides is catalyzed by <0.05 mol% of a commercially available ionic liquid and platinum on carbon, to make react CO2 and generate H2. The final catalytic system is achieved after studying the individual steps and finding common reaction conditions. These results open the way
Alejandro Lumbreras‐Teijeiro, Judit Oliver‐Meseguer, Antonio Leyva‐Pérez   +2 more
wiley   +1 more source

Valorisation of Greenhouse Gas for Commodity Chemical Production–Nitrous Oxide as Oxidising Agent for Heterogeneous Catalysis

ChemSusChem, EarlyView.
Heterogeneous catalysts can enhance the selectivity of oxidation reactions using N2O as oxidizing Agent with proper modification of catalyst phase, surface area, and acidity. N₂O activation leads to generating reactive oxygen species, facilitating selective oxidation and dehydrogenation to produce various products such as oxygenates, hydrocarbons, and ...
Seonho Lee, Seong‐Jik Park, Jechan Lee
wiley   +1 more source

CO2 Electroreduction Coupled with the Electrooxidation of Alcohols and Sugars to Formate: Review and Evaluation

ChemSusChem, EarlyView.
This review summarizes the latest literature on the production of formate by coupling the CO2 electroreduction with the electrooxidation of alcohols or sugars, covering the selection of catalysts, optimization of electrolytes, electrolyzer design and product separation. The economic and environmental impact of electroproduction of formate are analyzed,
Chongyang Jiang, Zhenlei Zhang, Peter J. Deuss, Haifeng Dong, Shaojuan Zeng, Xiangping Zhang, Dulce M. Morales   +6 more
wiley   +1 more source

A Systematic Review of Poisoning Attacks Against Large Language Models [PDF]

arXiv
With the widespread availability of pretrained Large Language Models (LLMs) and their training datasets, concerns about the security risks associated with their usage has increased significantly. One of these security risks is the threat of LLM poisoning attacks where an attacker modifies some part of the LLM training process to cause the LLM to behave
arxiv  

The Key Role and Recent Advances of Single‐Atom Catalysts in Sustainable Energy Conversion

EcoEnergy, EarlyView.
This review comprehensively summarizes the recent advances of single‐atom catalysts (SACs) in sustainable energy conversion. Emphasis is placed on their applications in water splitting, CO₂ reduction, nitrogen fixation, and oxygen reduction reactions.
Ziyi Zheng, Dongdong Xue, Jinyan Guo, Rui Ren, Ruirui Zhang, Yafu Wang, Xiangyi Kong, Yuxing Yan, Junyu Yang, Jiangwei Zhang   +9 more
wiley   +1 more source

Structural and electronic double effects on S‐doping dendritic mesoporous CeFeW/DM catalyst for enhancing SO2 tolerance in the low temperature NH3‐SCR reaction

EcoEnergy, EarlyView.
Ce−O−Fe active pairs were constructed on the Ti‐modified dendritic mesoporous‐structured CeFeW/DM catalyst, and its opened center–radial pore channels facilitated the adsorption and diffusion for reactants. Importantly, S doping perturbed the local electronic environment and formed an electron enrichment region, which made SO2 preferentially adsorbed ...
Xiaosheng Huang, Weitong Ling, Rongji Cui, Xiaona Li, Yongjie Xi, Zhicheng Tang   +5 more
wiley   +1 more source

Role of selenium in the pathophysiology of cardiorenal anaemia syndrome

ESC Heart Failure, Volume 12, Issue 2, Page 770-780, April 2025.
Abstract Chronic kidney disease (CKD) and cardiovascular disease (CVD) have multiple bidirectional mechanisms, and anaemia is one of the critical factors that are associated with the progression of the two disorders [referred to as cardiorenal anaemia syndrome (CRAS)].
Shigeyuki Arai, Minoru Yasukawa, Shigeru Shibata   +2 more
wiley   +1 more source

Progress of performance optimization for Mn-based SCR catalysts at low temperature

工程科学学报
The emission of nitrogen oxides (NOx), the primary air pollutant in China, reached 8.96 million tons in 2022, considerably higher than the emissions of volatile organic compounds, particulate matter, and sulfur dioxide (SO2).
Yun XU, Boyu WU, Ke ZHUANG, Qian ZHANG, Jingxin XU, Shengen ZHANG, Fahua ZHU, Bolin ZHANG   +7 more
doaj   +1 more source

Following the in situ pathway of photo‐activated cyclopentadienone‐NHC iron complexes as ammonia‐borane dehydrocoupling bifunctional catalysts

European Journal of Inorganic Chemistry, Accepted Article.
Carbonyl iron complexes bearing cyclopentadienone/hydroxycyclopentadienyl ligands and N‐heterocyclic carbene as non‐innocent and ancillary ligands, are active as ammonia‐borane dehydrocoupling catalysts under photo‐activation conditions. Dehydrogenation occurs at room temperature and is complete (in NMR tube) after 2h with 10 mol% of cationic complex 2,
Rita Mazzoni, Andrea Cingolani, Nicola Schiaroli, Carlo Lucarelli, Chiara Lenzi, Andrea Masetti, Cristiana Cesari, Francesca Forti, Stefano Zacchini, Jacopo De Maron, Francesco Luca Basile   +10 more
wiley   +1 more source