Results 31 to 40 of about 118,745 (262)

An improved formula for standard hypoxia tolerance time (STT) to evaluate hypoxic tolerance in mice

Military Medical Research, 2018
Background Hypoxia is a primary cause of mountain sickness and a common pathological condition in patients with heart failure, shock, stroke, and chronic obstructive pulmonary disease (COPD).
Gang Xu, Yu-Qi Gao, Yi-Xing Gao, Gang Wu, Jian-Yang Zhang, Wen-Xiang Gao   +5 more
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Hydrochemical and quality assessment of irrigation water at the trans-himalayan high-altitude regions of Leh, Ladakh, India

Applied Water Science, 2022
A total of seventy irrigation water samples were collected from Leh, Ladakh, India, to determine their hydrochemistry profile and water quality for irrigation purposes.
Arup Giri, Vijay K. Bharti, Sahil Kalia, Krishna Kumar, Mayarngam Khansu   +4 more
doaj   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Activation of notch signaling pathway is a potential mechanism for mucin2 reduction and intestinal mucosal barrier dysfunction in high-altitude hypoxia

Scientific Reports
High-altitude hypoxia can cause gastrointestinal issues and damage the intestinal mucosal barrier, which is crucial for digestion and nutrient absorption. The Notch signaling pathway affects this barrier’s integrity. This study explores the Notch pathway’
Ruhan Jia, Ying Han, Qinfang Zhu, Jingxuan Zhang, Huan Zhang, Maojia Ka, Yi Ma, Mohammed Gamah, Wei Zhang   +8 more
doaj   +1 more source

IL-10 Dysregulation in Acute Mountain Sickness Revealed by Transcriptome Analysis

Frontiers in Immunology, 2017
Acute mountain sickness (AMS), which may progress to life-threatening high-altitude cerebral edema, is a major threat to millions of people who live in or travel to high altitude.
Bao Liu, Bao Liu, Bao Liu, Jian Chen, Jian Chen, Jian Chen, Long Zhang, Yixing Gao, Yixing Gao, Yixing Gao, Jianhua Cui, Erlong Zhang, Erlong Zhang, Erlong Zhang, Gang Xu, Gang Xu, Gang Xu, Yan Liang, Yu Liang, Jian Wang, Yuqi Gao, Yuqi Gao, Yuqi Gao   +22 more
doaj   +1 more source

Remote ischemic preconditioning improves cognitive control in healthy adults: Evidence from an event-related potential study

Frontiers in Neuroscience, 2022
It is suggested that remote ischemic preconditioning (RIPC) may be a promising treatment for improving healthy adults’ cognitive control. However, direct empirical evidence was absent. Therefore, this study aims to provide evidence for the impact of RIPC
Yaling Li, Yaling Li, Yaling Li, Pei Huang, Pei Huang, Pei Huang, Jun Huang, Zhifeng Zhong, Zhifeng Zhong, Zhifeng Zhong, Simin Zhou, Simin Zhou, Simin Zhou, Huaping Dong, Huaping Dong, Huaping Dong, Jiaxin Xie, Jiaxin Xie, Jiaxin Xie, Yu Wu, Yu Wu, Yu Wu, Peng Li, Peng Li, Peng Li   +24 more
doaj   +1 more source

Light‐Driven Quadrupedal Walking Biohybrid Robot With Antagonistic Muscle‐Rings and Inclined Joints

Advanced Robotics Research, EarlyView.
This work presents a light‐driven quadrupedal walking biohybrid robot powered by antagonistic muscle‐rings that achieve alternating walking gait. Optical training improved reproducibility of cultured muscle tissues, while caffeine treatment enhanced contractile force.
Shotaro Saito, Byeongwook Jo, Tomohiro Morita, Shota Noda, Minghao Nie, Shoji Takeuchi   +5 more
wiley   +1 more source

Iron‐Mediated Release of Aged Dissolved Organic Carbon From Waterlogged Peatland Under Warming

Advanced Science, EarlyView.
This study conducts a five‐year in situ warming experiment in high‐altitude peatlands to examine dissolved organic carbon (DOC) release. The study shows that warming promotes the release of plant‐derived modern DOC in drained peatlands, but amplifies aquatic export of century‐old DOC from waterlogged peatlands via Fe‐mediated DOC mobilization—a ...
Guohua Dai, Zhiying Yang, Zongguang Liu, Wanjia Hu, Lixiao Ma, Enze Kang, Wanqing Luo, Yunpeng Zhao, Chengzhu Liu, Juan Jia, Ting Liu, Chen He, Quan Shi, Jianliang Liu, Yongheng Gao, Huai Chen, Hailong Zhang, Meixun Zhao, Xiaojuan Feng   +18 more
wiley   +1 more source

Effect of High-Flow Oxygen on Exercise Performance in COPD Patients. Randomized Trial

Frontiers in Medicine, 2021
Background: High-flow oxygen therapy (HFOT) provides oxygen-enriched, humidified, and heated air at high flow rates via nasal cannula. It could be an alternative to low-flow oxygen therapy (LFOT) which is commonly used by patients with chronic ...
Konstantinos Bitos, Konstantinos Bitos, Konstantinos Bitos, Michael Furian, Michael Furian, Michael Furian, Laura Mayer, Laura Mayer, Laura Mayer, Simon R. Schneider, Simon R. Schneider, Simon R. Schneider, Simone Buenzli, Simone Buenzli, Simone Buenzli, Maamed Z. Mademilov, Maamed Z. Mademilov, Maamed Z. Mademilov, Ulan U. Sheraliev, Ulan U. Sheraliev, Ulan U. Sheraliev, Nuridin H. Marazhapov, Nuridin H. Marazhapov, Nuridin H. Marazhapov, Ainura K. Abdraeva, Ainura K. Abdraeva, Ainura K. Abdraeva, Shoira D. Aidaralieva, Shoira D. Aidaralieva, Shoira D. Aidaralieva, Aybermet M. Muratbekova, Aybermet M. Muratbekova, Aybermet M. Muratbekova, Talant M. Sooronbaev, Talant M. Sooronbaev, Talant M. Sooronbaev, Silvia Ulrich, Silvia Ulrich, Silvia Ulrich, Konrad E. Bloch, Konrad E. Bloch, Konrad E. Bloch   +41 more
doaj   +1 more source