Results 121 to 130 of about 22,534,897 (356)

High Altitude Ozone Research Balloon [PDF]

In order to create a mission model of the high altitude ozone research balloon (HAORB) several options for flight preparation, altitude control, flight termination, and payload recovery were considered.
Cauthen, Timothy A., Daniel, Leslie A., Herrick, Sally C., Rock, Stacey G., Varias, Michael A.   +4 more
core   +1 more source

A passive high altitude deorbiting strategy [PDF]

, 2011
A deorbiting strategy for small satellites, in particular CubeSats, is proposed which exploits the effect of solar radiation pressure to increase the spacecraft orbit eccentricity so that the perigee falls below an altitude where atmospheric drag will ...
Colombo, Camilla, Lucking, Charlotte, McInnes, Colin   +2 more
core  

Enabling the study of gene function in gymnosperms: Virus‐induced gene silencing in Ephedra tweedieana

Applications in Plant Sciences, EarlyView.
Abstract Premise As the sister clade to angiosperms, extant gymnosperms are crucial for reconstructing ancestral gene regulatory networks in seed plants. This highlights the need for model systems representing each of their distinct lineages. However, tools to quickly and effectively investigate gene function in gymnosperms are still limited due to the
Anthony G. K. Garcia, Jo Trang Bùi, Todd P. Michael, Stefanie M. Ickert‐Bond, Verónica S. Di Stilio   +4 more
wiley   +1 more source

Research advances in pathogenesis and prophylactic measures of acute high altitude illness.

Respiratory Medicine, 2018
After ascent to high altitude (≥2500 m), the inability of the human body to adapt to the hypobaric and hypoxia environment can induce tissue hypoxia, then a series of high altitude illnesses including acute mountain sickness (AMS), high altitude ...
Yunhong Li, Yujing Zhang, Ying Zhang
semanticscholar   +1 more source

Sustainable Cellulose Ionogels With Promising Physical Structure, Properties, and Applications

Advanced Physics Research, EarlyView.
This study presents a comprehensive overview of cellulose functional gels, focusing on their molecular network design and physical properties. The extensive potential applications of cellulose gels in flexible electronics, biomedicine, and smart engineering are explored in depth. This work provides valuable insights and guidance for future research and
Wenjuan Wang, Haibo Jiang, Geyuan Jiang, Minxin Wang, Jun Guan, Jianhong Zhou, Dawei Zhao   +6 more
wiley   +1 more source

A machine learning-based severity stratification tool for high altitude pulmonary edema

BMC Medical Informatics and Decision Making
This study aimed to identify key predictors for the severity of High Altitude Pulmonary Edema (HAPE) to assist clinicians in promptly recognizing severely affected patients in the emergency department, thereby reducing associated mortality rates ...
Luobu Gesang, Yangzong Suona, Zhuoga Danzeng, Bai Ci, Quzhen Gesang, WangJiu Cidan, Qiangba Dingzeng, Zhuoga Baima, Quzhen Zhaxi   +8 more
doaj   +1 more source

High altitude pulmonary oedema

Swiss Medical Weekly, 2003
High-altitude pulmonary edema (HAPE), a not uncommon form of acute altitude illness, can occur within days of ascent above 2500 to 3000 m. Although life-threatening, it is avoidable by slow ascent to permit acclimatization or with drug prophylaxis. The critical pathophysiology is an excessive rise in pulmonary vascular resistance or hypoxic pulmonary ...
Peter, Bärtsch, Heimo, Mairbäurl, Erik R, Swenson, Marco, Maggiorini   +3 more
openaire   +4 more sources

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

The Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

LANDSAT application of remote sensing to shoreline-form analysis [PDF]

The author has identified the following significant results. LANDSAT imagery of the southern end of Assateague Island, Virginia, was enlarged to 1:80,000 and compared with high altitude (1:130,000) and low altitude (1:24,000) aerial photography in an ...
Dolan, R., Hayden, B., Hewitt, C., Heywood, J., Michel, J.   +4 more
core   +1 more source

Down-Regulation of EPAS1 Transcription and Genetic Adaptation of Tibetans to High-Altitude Hypoxia

Molecular biology and evolution, 2017
Tibetans are well adapted to the hypoxic environments at high altitude, yet the molecular mechanism of this adaptation remains elusive. We reported comprehensive genetic and functional analyses of EPAS1, a gene encoding hypoxia inducible factor 2α (HIF ...
Yi Peng, Chao-ying Cui, Yaoxi He, Yaoxi He, Ouzhuluobu, Hui Zhang, Deying Yang, Qu Zhang, Bianbazhuoma, Lixin Yang, Yibo He, Yibo He, Kun Xiang, Xiaoming Zhang, S. Bhandari, P. Shi, Yangla, Dejiquzong, Baimakangzhuo, Duojizhuoma, Yongyue Pan, Cirenyangji, Baimayangji, Gonggalanzi, Caijuan Bai, Bianba, Basang, Ciwangsangbu, Shuhua Xu, Shuhua Xu, Hua Chen, Shiming Liu, Tianyi Wu, X. Qi, B. Su   +34 more
semanticscholar   +1 more source