Results 21 to 30 of about 456,779 (297)

Ultra Reliable UAV Communication Using Altitude and Cooperation Diversity [PDF]

IEEE Transactions on Communications, 2017
The use of unmanned aerial vehicles (UAVs) serving as aerial base stations is expected to become predominant in the next decade. However, in order, for this technology, to unfold its full potential, it is necessary to develop a fundamental understanding ...
M. M. Azari, Fernando Rosas, Kwang-Cheng Chen, S. Pollin   +3 more
semanticscholar   +1 more source

Targeting JUN, CEBPB, and HDAC3: A Novel Strategy to Overcome Drug Resistance in Hypoxic Glioblastoma

Frontiers in Oncology, 2019
Hypoxia is a predominant feature in glioblastoma (GBM) and contributes greatly to its drug resistance. However, the molecular mechanisms which are responsible for the development of the resistant phenotype of GBM under hypoxic conditions remain unclear ...
Yixing Gao, Bao Liu, Bao Liu, Lan Feng, Lan Feng, Binda Sun, Binda Sun, Shu He, Shu He, Yidong Yang, Yidong Yang, Gang Wu, Gang Wu, Guoji E, Guoji E, Chang Liu, Chang Liu, Yuqi Gao, Yuqi Gao, Erlong Zhang, Erlong Zhang, Bo Zhu   +21 more
doaj   +1 more source

Memory impairment induced by exposure to simulated hypobaric hypoxia and phosphoproteomic analysis of hippocampus in mice

Di-san junyi daxue xuebao, 2022
Objective To observe the changes of protein phosphorylation levels in the hippocampus of mice with memory impairment caused by hypobaric hypoxia exposure, and to explore the key phosphorylated proteins and associated pathways involved in memory deficits.
DONG Huaping, ZHONG Zhifeng, LI Peng, HUANG Pei, TIAN Huaijun, XIE Jiaxin, ZHOU Simin   +6 more
doaj   +1 more source

Sequencing of 50 Human Exomes Reveals Adaptation to High Altitude

Science, 2010
No Genetic Vertigo Peoples living in high altitudes have adapted to their situation (see the Perspective by Storz). To identify gene regions that might have contributed to high-altitude adaptation in Tibetans, Simonson et al. (p.
X. Yi, Y. Liang, E. Huerta-Sánchez, Xin Jin, Z. Cuo, J. Pool, Xun Xu, Hui Jiang, N. Vinckenbosch, T. Korneliussen, Hancheng Zheng, Tao Liu, Weiming He, Kui Li, Ruibang Luo, X. Nie, Honglong Wu, Meiru Zhao, H. Cao, Jing Zou, Ying Shan, Shuzheng Li, Qi Yang, Asan, Peixiang Ni, G. Tian, Junming Xu, Xiao Liu, T. Jiang, Renhua Wu, Guangyu Zhou, M. Tang, J. Qin, Tong Wang, S. Feng, Guohong Li, Huasang, Jiangbai Luosang, Wei Wang, Fang Chen, Yading Wang, Xiaoguang Zheng, Zhuo Li, Zhuoma Bianba, Ge Yang, Xinping Wang, Shuhui Tang, G. Gao, Yong Chen, Zhen Luo, Lamu Gusang, Zheng Cao, Qinghui Zhang, W. Ouyang, Xi-ling Ren, Huiqing Liang, Huisong Zheng, Yebo Huang, Jingxiang Li, L. Bolund, K. Kristiansen, Yingrui Li, Yong Zhang, Xiuqing Zhang, Ruiqiang Li, Songgang Li, Huanming Yang, R. Nielsen, Jun Wang, Jian Wang   +69 more
semanticscholar   +1 more source

Joint Altitude and Beamwidth Optimization for UAV-Enabled Multiuser Communications [PDF]

IEEE Communications Letters, 2017
We study multiuser communication systems enabled by an unmanned aerial vehicle (UAV) that is equipped with a directional antenna of adjustable beamwidth.
Haiyun He, Shuowen Zhang, Yong Zeng, Rui Zhang   +3 more
semanticscholar   +1 more source

The Complexity of Moisture Sources Affects the Altitude Effect of Stable Isotopes of Precipitation in Inland Mountainous Regions

Water Resources Research
From a global perspective, the stable isotope altitude effect is crucial for understanding climate information. However, the intensity of this effect can be influenced by the source of moisture, particularly in inland mountainous regions where the ...
Longhu Chen, Guofeng Zhu, Xinrui Lin, Rui Li, Siyu Lu, Yinying Jiao, Dongdong Qiu, Gaojia Meng, Qinqin Wang   +8 more
semanticscholar   +1 more source

Acute high-altitude sickness

European Respiratory Review, 2017
At any point 1–5 days following ascent to altitudes ≥2500 m, individuals are at risk of developing one of three forms of acute altitude illness: acute mountain sickness, a syndrome of nonspecific symptoms including headache, lassitude, dizziness and ...
A. Luks, E. Swenson, P. Bärtsch
semanticscholar   +1 more source

Hematological Risk Factors for High-Altitude Headache in Chinese Men Following Acute Exposure at 3,700 m

Frontiers in Physiology, 2017
Background: High-altitude headache (HAH) is a notably common disorder affecting the daily life of travelers ascending to high altitude. Hematological parameters are important clinical examinations for various diseases.
He Huang, He Huang, He Huang, Bao Liu, Bao Liu, Bao Liu, Bao Liu, Gang Wu, Gang Wu, Gang Wu, Gang Xu, Gang Xu, Gang Xu, Bing-Da Sun, Bing-Da Sun, Bing-Da Sun, Yu-Qi Gao, Yu-Qi Gao, Yu-Qi Gao   +18 more
doaj   +1 more source

Adropin Is a Key Mediator of Hypoxia Induced Anti-Dipsogenic Effects via TRPV4-CamKK-AMPK Signaling in the Circumventricular Organs of Rats

Frontiers in Molecular Neuroscience, 2017
Water intake reduction (anti-dipsogenic effects) under hypoxia has been well established, but the underlying reason remains unknown. Our previous report indicated that activated TRPV4 neurons in SFO are associated with anti-dipsogenic effects under ...
Qing-Yuan Huang, Qing-Yuan Huang, Qing-Yuan Huang, Fan Yang, Fan Yang, Fan Yang, Li Zhou, Xu Qian, Dong Wang, Dong Wang, Dong Wang, Wen-Juan He, Wen-Juan He, Wen-Juan He, Zhong-wei Tang, Zhong-wei Tang, Zhong-wei Tang, Jun Yin, Jun Yin, Jun Yin   +19 more
doaj   +1 more source

Integrated pan-cancer analysis and experimental verification of the roles of tropomyosin 4 in gastric cancer

Frontiers in Immunology, 2023
ObjectiveTo investigate the function of tropomyosin 4 (TPM4) using pan-cancer data, especially in gastric cancer (GC), using comprehensive bioinformatics analysis and molecular experiments.MethodsWe used UCSC Xena, The Cancer Genome Atlas (TCGA ...
Qijing Guo, Qijing Guo, Linglin Zhao, Nan Yan, Yan Li, Cuiping Guo, Shengyan Dang, Xianliang Shen, Jianfang Han, Yushuang Luo, Yushuang Luo   +10 more
doaj   +1 more source