Results 31 to 40 of about 456,779 (297)

Influence of Drone Altitude, Image Overlap, and Optical Sensor Resolution on Multi-View Reconstruction of Forest Images

Remote Sensing, 2019
Recent technical advances in drones make them increasingly relevant and important tools for forest measurements. However, information on how to optimally set flight parameters and choose sensor resolution is lagging behind the technical developments. Our
Erich Seifert, S. Seifert, Holger Vogt, D. Drew, J. Aardt, A. Kunneke, T. Seifert   +6 more
semanticscholar   +1 more source

IL-6/STAT3 Induced Neuron Apoptosis in Hypoxia by Downregulating ATF6 Expression

Frontiers in Physiology, 2021
Background: Neuron apoptosis, regulated by endoplasmic reticulum (ER) stress in the hippocampus, is an essential factor influencing the cognitive impairment induced by hypobaric hypoxia.
Simin Zhou, Simin Zhou, Simin Zhou, Zhifeng Zhong, Zhifeng Zhong, Zhifeng Zhong, Pei Huang, Pei Huang, Pei Huang, Bin Xiang, Bin Xiang, Bin Xiang, Xiaoxu Li, Xiaoxu Li, Xiaoxu Li, Huaping Dong, Huaping Dong, Huaping Dong, Gang Zhang, Gang Zhang, Gang Zhang, Yu Wu, Yu Wu, Yu Wu, Peng Li, Peng Li, Peng Li   +26 more
doaj   +1 more source

Identification of a miRNA–mRNA Regulatory Networks in Placental Tissue Associated With Tibetan High Altitude Adaptation

Frontiers in Genetics, 2021
The Tibetan population has lived and successfully reproduced at high altitude for many generations. Studies have shown that Tibetans have various mechanisms for protection against high-altitude hypoxia, which are probably due, at least in part, to ...
Noryung Tenzing, Noryung Tenzing, Noryung Tenzing, Martha Tissot van Patot, Huifang Liu, Huifang Liu, Huifang Liu, Qiying Xu, Qiying Xu, Qiying Xu, Juanli Liu, Juanli Liu, Juanli Liu, Zhuoya Wang, Zhuoya Wang, Zhuoya Wang, Yanjun Wang, Yanjun Wang, Yanjun Wang, Tana Wuren, Tana Wuren, Ri-Li Ge, Ri-Li Ge   +22 more
doaj   +1 more source

Microbial diversity and soil physiochemical characteristic of higher altitude

PLoS ONE, 2019
Altitude is the major factor affecting both biodiversity and soil physiochemical properties of soil ecosystems. In order to understand the effect of altitude on soil physiochemical properties and bacterial diversity across the Himalayan cold desert, high
Saurabh Kumar, D. Suyal, A. Yadav, Y. Shouche, R. Goel   +4 more
semanticscholar   +1 more source

Characterization of Microplastics in Human Gastric Cancer and Control Tissues and Analysis of Associated Genetic Features

Advanced Healthcare Materials, EarlyView.
This study characterizes the presence of microplastics in human normal gastric, para‐tumor, and gastric tumor tissue and confirms the association between microplastic exposure and lymph node metastasis in gastric cancer. This study explores the transcriptomic changes induced by microplastic exposure, laying the foundation for further investigation into
Liqiao Chen, Jialin Li, Yan Wu, Han Bao, Xuesong Yang, Guoqing Lv, Ke Ji, Ji Zhang, Xiaojiang Wu, Kai Zhou, Jieli Xu, Jiatian Tang, Xiyuan Han, Anqiang Wang   +13 more
wiley   +1 more source

Development and Validation of the Whole Atmosphere Community Climate Model With Thermosphere and Ionosphere Extension (WACCM‐X 2.0)

Journal of Advances in Modeling Earth Systems, 2018
Key developments have been made to the NCAR Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension (WACCM‐X). Among them, the most important are the self‐consistent solution of global electrodynamics, and transport of O+ in ...
Han‐Li Liu, Charles G. Bardeen, Benjamin T. Foster, Peter Lauritzen, Jing Liu, Gang Lu, Daniel R. Marsh, Astrid Maute, Joseph M. McInerney, Nicholas M. Pedatella, Liying Qian, Arthur D. Richmond, Raymond G. Roble, Stanley C. Solomon, Francis M. Vitt, Wenbin Wang   +15 more
doaj   +1 more source

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

The Impact of Catalyst Layer Composition and Structure on Performance and Durability of PEMWE Anodes

Advanced Materials Technologies, EarlyView.
This article explores a new type of anode for water electrolysis that uses less iridium, a rare and expensive metal. By combining stable iridium oxide with platinum and carbon‐based materials, the authors create a catalyst layer that maintains strong performance.
Lena V. Bühre, Kaustubh Khedekar, Kimberly S. Reeves, Haoran Yu, Shaun M. Alia, Bryan S. Pivovar   +5 more
wiley   +1 more source

5-Hydroxytryptamine receptor 1D overexpression exacerbates gastric cancer proliferation, invasion, and angiogenesis by activating the Wnt/β-catenin signaling

BMC Cancer
Dysregulation of 5-Hydroxytryptamine and its receptors play important roles in the development and progression of malignant tumors. However, the biological role and underlying molecular mechanism of 5-Hydroxytryptamine Receptor 1D (HTR1D) gastric cancer (
Juan Wu, Yi Yi, Qi Wang, Jinwan Qiao, Haixiu Ma, Jing Zhao, Ronghua Ma, Jun Liu, Haiyan Wang, Zhanhai Su   +9 more
doaj   +1 more source

Waves and Magnetism in the Solar Atmosphere (WAMIS)

Frontiers in Astronomy and Space Sciences, 2016
Comprehensive measurements of magnetic fields in the solar corona have a long history as an important scientific goal. Besides being crucial to understanding coronal structures and the Sun’s generation of space weather, direct measurements of their ...
Yuan-Kuen eKo, John Daniel Moses, John Martin Laming, Leonard eStrachan, Samuel eTun Beltran, Steven eTomczyk, Sarah E. Gibson, Frederic eAuchere, Roberto eCasini, Silvano eFineschi, Michael eKnoelker, Clarence eKorendyke, Scott William McIntosh, Marco eRomoli, Jan eRybak, Dennis G. Socker, Angelos eVourlidas, Qian eWu   +17 more
doaj   +1 more source