Results 81 to 90 of about 120,508 (261)

Fast beam-based alignment using ac excitations

Physical Review Accelerators and Beams, 2020
Standard quadrupole beam-based alignment (BBA) techniques rely on orbit data and on the sequential variation of quadrupole and orbit corrector magnets (OCM).
Zeus Martí, Gabriele Benedetti, Ubaldo Iriso, Andrea Franchi   +3 more
doaj   +1 more source

Heme‐NO Dilates Arteries via Mobilization of NO Moieties From an Intracellular NO Store Within Vascular Smooth Muscle Cells

Advanced Science, EarlyView.
Nitrosyl heme emerges as an extracellular nitrodilator that dilates arteries without crossing the cell membrane. Instead, heme‐NO mobilizes NO moieties from a preformed intracellular NO store within vascular smooth muscle, providing both functional and chemical evidence for the NANOS model, revealing a previously unrecognized mechanism of arterial ...
Taiming Liu, Meijuan Zhang, Lingchao Zhu, Haiyan Ke, Amancio de Souza, Qian Li, Daniel Castella, Nicolai Lehnert, Lubo Zhang, Arlin B. Blood   +9 more
wiley   +1 more source

Canagliflozin Alleviates Diabetic Glomerular Endothelial Injury via Melibiose in a Microbiota‐Dependent Manner

Advanced Science, EarlyView.
Canagliflozin treatment reshapes the gut microbiota in DKD and elevates levels of melibiose, a metabolite derived from Roseburia intestinalis. Melibiose directly binds to and enhances the enzymatic activity of glyoxalase 1, leading to decreased methylglyoxal accumulation.
Wei Zhang, Yi Song, Changkun Li, Yuanyuan Luo, Mingwei Shao, Feng Guo, Fangyi Wei, Xunjie Fan, Wenwen Guo, Fengmei Xu, Yanhong Sang, Dongming Zhang, Yanhong Zhou, Lianwei Wang, Zhiqiang Kang, Yingjun Yang, Chunhua Song, Yanxia Liu, Xiaojun Ma, Jiao Wang, Chong Li, Shengnan Ma, Lin Zhao, Zhi Qin, Guolan Xing, Qiubo Zhao, Jun Li, Shumin Song, Dan Zhao, Ting Huang, Qingzhu Wang, Yanyan Zhao, Guijun Qin   +32 more
wiley   +1 more source

Quantized quadrupole superconductors

Physical Review B
7 pages, 3 ...
Yun-Mei Li, Yongwei Huang, Kai Chang
openaire   +2 more sources

3D-Printable Model of a Particle Trap: Development and Use in the Physics Classroom

Journal of Open Hardware, 2019
Quadrupole ion traps are modern and versatile research tools used in mass spectrometers, in atomic frequency and time standards, in trapped ion quantum computing research, and for trapping anti-hydrogen ions at CERN.
Lachlan McGinness, Susanne Dührkoop, Alexandra Jansky, Oliver Keller, Ankatrin Lorenz, Sascha Schmeling, Klaus Wendt, Julia Woithe   +7 more
doaj   +1 more source

Nanocellulose Alleviates Intrahepatic Cholestasis of Pregnancy via Gut Microbiota‐Mediated Bile Acid Homeostasis

Advanced Science, EarlyView.
Nanocellulose, derived from microcrystalline cellulose (MCC) through sulfuric acid hydrolysis or mechanical grinding to produce CNC or CNF, was tested in a rat ICP model. Particularly, CNF improved gut microbiota composition, reduced secondary bile acid metabolism, and restored bile acid homeostasis through modulation of the gut–liver axis.
Muhua Yu, Hongjie Dai, Xiaocui Zhong, Qibin Li, Hui Yuan, Yang Yang, Daiyong Huang, Lei Zhang, Rui Ran, Tian He, Yuanzhi Huang, Silas Villas‐Boas, Sergey Tumanov, Richard D. Cannon, Boris Novakovic, Richard Saffery, Yuhao Zhang, Xiaojing Dong, Ting‐Li Han   +18 more
wiley   +1 more source

Sex‐Specific Regulation of Glycemic Homeostasis by Theabrownin from Pu‐erh Tea

Advanced Science, EarlyView.
Pu‐erh tea's key component, theabrownin (TB), lowers blood glucose in a sex‐specific manner. In females, estrogen boosts intestinal MUC2 production, which dramatically enhances TB's ability to inhibit the carbohydrate‐digesting enzyme α‐glucosidase.
Yang Li, Junliang Kuang, Dan Zheng, Jieyi Wang, Kun Ge, Chun Qu, Xiaojiao Zheng, Zhenxing Ren, Fengjie Huang, Mingliang Zhao, Yimin Sun, Huiheng Zhang, Keke Ding, Xixi Xia, Yajun Tang, Lu Liu, Jian Zhou, Fei Gao, Xiaohui Ma, Yongquan Xu, Guoxiang Xie, Aihua Zhao, Wei Jia   +22 more
wiley   +1 more source

A Simulation Model for Ion Motion in Quadrupole Field Based on COMSOL

Zhipu Xuebao
Quadrupole mass spectrometer is currently one of the most widely used small-scale mass spectrometry instruments. Studying the ions trajectory in a quadrupole field is very important for a deeper understanding of the behavior of ions in quadrupole field ...
Li-na YANG, Xing-chuang XIONG, Xiang FANG   +2 more
doaj   +1 more source

Excitation frequencies of ions confined in a quadrupole field with quadrupole excitation

Journal of the American Society for Mass Spectrometry, 2000
Resonant quadrupole excitation of ions confined in a radio frequency quadrupole field with angular frequency omega by an excitation signal with angular frequency omega has been investigated theoretically. It is shown that the spectrum of excitation frequencies has considerable structure which corresponds to different orders of excitation. The resonance
Sudakov, M., Konenkov, N., Douglas, D.J., Glebova, T.   +3 more
openaire   +2 more sources

Icariin Enhances the Enzymatic Activity of N‐acetylgalactosaminidase to Augment Akkermansia Abundance in Gut Microbiota for Improved PD‐1 Blockade Efficacy in Tumor Suppression

Advanced Science, EarlyView.
Icariin promoted the growth of Akk by enhancing the activity of N‐acetylgalactosaminidase (Amuc_0920), which enhanced mucin utilization and provided a favorable nutrient environment for bacterial growth. This icariin‐mediated enrichment of Akk further reshaped the tumor microenvironment and promoted CD8+ T cell infiltration, ultimately synergizing with
Shuangying Qiao, Liu Yang, Haibang Hao, Qiuxia Ding, Feng Ding, Zheng Chen, Jinfang Zhang, Yun He, Meng Li, Jun Xu, Chao Wang, Aiping Lu, Fangfei Li   +12 more
wiley   +1 more source