Results 71 to 80 of about 279,349 (317)

Achieving High‐Density and Stress‐Resilient Maize Breeding Via Germplasm Innovation

Advanced Science, EarlyView.
Global population growth and climate change have exacerbated the global food crisis. This perspective presents a conceptual framework focusing on enhancing population advantages. Several novel breeding objectives are proposed to improve density tolerance and stress resistance for yield improvement.
Xinlong Li, Yongqiang Chen, Dong Ding, Xuehai Zhang, Xuxiang Jia, Zhanhui Zhang, Yafei Wang, Weihua Li, Hui Zhang, Jihua Tang   +9 more
wiley   +1 more source

Peak emission altitude of Saturn's H3+ aurora [PDF]

, 2012
Here we present the first detailed measurement of the altitudinal profile of H3+ emission within Saturn's ionosphere, made using images taken by the VIMS instrument on Cassini on 11–12 October 2006, during a chance alignment between the visible limb of ...
Stallard, Tom S., Brown, Robert H., Miller, Steve, Melin, Henrik, Baines, Kevin H., Badman, Sarah V.   +5 more
core  

Blood rheology adjustments in rats after a program of intermittent exposure to hypobaric hypoxia

, 2013
Esteva, Santiago, Pere Panisello, Joan Ramon Torrella, Teresa Pagés, and Ginés Viscor. Blood rheology adjustments in rats after a program of intermittent exposure to hypobaric hypoxia. High Alt. Med. Biol. 10:275-281, 2009. Intermittent hypobaric hypoxia
Esteva i Gras, Santiago, Panisello Tafalla, Pere, Torrella Guio, Joan Ramon, Pagés, Teresa, Viscor Carrasco, Ginés   +4 more
core   +1 more source

Covalent Bonds Reinforced Strength and Modulus of Heterocyclic Aramid Fiber by Interfacial Aminated‐MXene Nanosheets

Advanced Science, EarlyView.
We demonstrate the covalent bonds strategy to enhance the mechanical property of PBIA fiber by using interfacial MXene‐NH2 nanosheets. The MXene‐NH2 nanosheets with reactive amino sites that can serve as nucleating agents and chain anchors to enhance orientation, crystallinity and interchain interaction of PBIA fiber via strong interfacial amido ...
Boyuan Chen, Hansheng Liu, Weiheng Kong, Ke Han, Jing Fang, Xingjiang Wu, Jianhong Xu, Hao Li   +7 more
wiley   +1 more source

Adaptation to Living at High Altitude in Patients with COPD. Comparative Study of Exercise Capacity and Ventilatory Variables between Patients Residing at High and Low Altitudes in the Andes

González-García, Mauricio and Luis Ernesto Téllez. Adaptation to living at high altitude in patients with COPD. Comparative study of exercise capacity and ventilatory variables between patients residing at high and low altitudes in the Andes.
Téllez L.E., González-García M.
core   +1 more source

Altitude hypoxia and hypoxemia: pathogenesis and management

Signal Transduction and Targeted Therapy
At high altitudes, which typically exceed 2500 m, approximately 80 million people reside permanently, with over a million visitors annually. The primary effect of high altitude is hypobaric hypoxia, which leads to decreased oxygen availability and a ...
Chunmei Cai, Guohua Ni, Lei Chen, Cheng Deng, Shengjun Chai, Rui Wang, Rong Zhang, Fengming Luo, Ri-Li Ge   +8 more
doaj   +1 more source

Highly Efficient and Environmentally Stable Radiative Cooling Fabric: Integrating Photoluminescence and Hierarchical Core–Shell Fibers

Advanced Science, EarlyView.
A scalable radiative cooling fabric engineered with a multi‐layer assembly core–shell structure and integrated photoluminescent materials is reported. The fabric exhibits remarkable environmental stability, including UV resistance, mechanical durability, hydrophobicity, stain resistance, thermal stability, and flame retardancy, demonstrating its ...
Hongtao Liu, Hui Li, Yining Wang, Wei Sun, Zhuan Chen, Yongping Hou, Yongmei Zheng, Xuejian Chen, Bin Yu   +8 more
wiley   +1 more source

Living at high altitude and COVID-19 mortality in Peru

, 2022
Background: Previous studies have reported a lower severity of COVID-19 infections at higher altitudes; however, this association may be confounded by various factors.
Nicolaou, Laura, Steinberg, Anne, Lescano, Andres G, Hartinger, Stella, Checkley, William, Carrillo-Larco, Rodrigo M   +5 more
core   +1 more source

Hypoxic preacclimatization combining intermittent hypoxia exposure with physical exercise significantly promotes the tolerance to acute hypoxia

Frontiers in Physiology
Background: Both hypoxia exposure and physical exercise before ascending have been proved to promote high altitude acclimatization, whether the combination of these two methods can bring about a better effect remains uncertain.
Jiaxin Xie, Shenwei Xie, Zhifeng Zhong, Huaping Dong, Pei Huang, Simin Zhou, Huaijun Tian, Jijian Zhang, Yu Wu, Peng Li   +9 more
doaj   +1 more source

UHPLC-QTOFMS-Based Metabolomic Analysis of the Hippocampus in Hypoxia Preconditioned Mouse

Frontiers in Physiology, 2019
Background: Hypoxia appears in a number of extreme environments, including high altitudes, the deep sea, and during aviation, and occurs in cancer, cardiovascular disease, respiratory failures and neurological disorders. Though it is well recognized that
Wen-Ting Liao, Jie Liu, Jie Liu, Si-Min Zhou, Si-Min Zhou, Gang Xu, Gang Xu, Yu-Qi Gao, Yu-Qi Gao, Wen-Yuan Liu   +9 more
doaj   +1 more source