Results 91 to 100 of about 846,095 (336)

Multiple Unmanned Aerial Vehicle Formation Control through Deep Reinforcement Learning with Offline Sample Correction

Advanced Intelligent Systems, EarlyView.
Herein, a deep reinforcement learning‐based multi‐UAV formation control approach is proposed. By optimizing the utilization of historical data through correcting of offline samples, the past experience is better leveraged and learning performance is improved.
Zhongkai Chen, Han Zhou, Chao Yan, Yihao Sun, Xiaojia Xiang   +4 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

In vitro study: HIF-1α-dependent glycolysis enhances NETosis in hypoxic conditions

Frontiers in Immunology
BackgroundHypoxia plays a pivotal role in modulating immune responses, especially in neutrophils, which are essential components of the innate immune system.
Yi Ye, Yi Ye, Yi Ye, Yanjun Wang, Yanjun Wang, Yanjun Wang, Yanjun Wang, Qiying Xu, Qiying Xu, Qiying Xu, Qiying Xu, Juanli Liu, Juanli Liu, Juanli Liu, Juanli Liu, Ziqi Yang, Tana Wuren, Tana Wuren, Tana Wuren, Ri-Li Ge, Ri-Li Ge, Ri-Li Ge   +21 more
doaj   +1 more source

The lung at high altitude [PDF]

Multidisciplinary Respiratory Medicine, 2011
The lung is the interface between the environment and the metabolic mechanisms of the body, and plays a pivotal role in exposure to high altitude. In fact, high altitude is a challenge for [...]
openaire   +5 more sources

Does the abiotic environment influence the distribution of flower and fruit colors?

American Journal of Botany, EarlyView.
Abstract Premise Color in flowers and fruits carries multiple functions, from attracting animal partners (pollinators, dispersers) to mitigating environmental stress (cold, drought, UV‐B). With research historically focusing on biotic interactions as selective agents, however, it remains unclear whether abiotic stressors impact flower and fruit colors ...
Agnes S. Dellinger, Leah Meier, Stacey Smith, Miranda Sinnott‐Armstrong   +3 more
wiley   +1 more source

Space Station Freedom altitude strategy [PDF]

The Space Station Freedom (SSF) altitude strategy provides guidelines and assumptions to determine an altitude profile for Freedom. The process for determining an altitude profile incorporates several factors such as where the Space Shuttle will ...
Mcdonald, Brian M., Teplitz, Scott B.
core   +1 more source

Stomatal distribution and post‐fire recovery: Intra‐ and interspecific variation in plants of the pyrogenic Florida scrub

American Journal of Botany, EarlyView.
Abstract Premise Amphistomy, the presence of stomata on both leaf surfaces, can increase photosynthesis yet is uncommon across vascular plants. The relative infrequency of amphistomy is often attributed to high costs, such as transpirational water loss.
Genevieve Triplett, Aaron S. David
wiley   +1 more source

Floral shape and color impact heat accumulation and thermal stability of the floral microenvironment in a subalpine meadow

American Journal of Botany, EarlyView.
Abstract Premise The floral thermal microenvironment impacts plant reproduction through its effects on gametophyte performance and plant–pollinator interactions. Color and shape are axes of floral variation that may mediate floral temperature because they affect the absorption and reflection of solar radiation, but their interactive effects are unclear.
Jennifer S. Apland, Katherine E. Riddle, Matthew H. Koski   +2 more
wiley   +1 more source

[Invited] A Study of Large Wind Shears Near the Mesopause [PDF]

, 2016
第6回極域科学シンポジウム分野横断型セッション：[IM] 横断　中層大気・熱圏11月17日（火）　統計数理研究所 セミナー室2 ...
Altitude Observatory High, Center for Atmospheric Research National, Liu Han-Li   +2 more
core   +1 more source

The expression of CTLA-4 in hepatic alveolar echinococcosis patients and blocking CTLA-4 to reverse T cell exhaustion in Echinococcus multilocularis-infected mice

Frontiers in Immunology
Alveolar echinococcosis (AE) is a zoonotic parasitic disease caused by the infection of Echinococcus multilocularis (E. multilocularis) larvae. Cytotoxic T-lymphocyte antigen 4 (CTLA-4) produces inhibitory signals and induces T cell exhaustion, thereby ...
Yuxuan Yang, Yuxuan Yang, Tana Wuren, Binjie Wu, Binjie Wu, Shilei Cheng, Shilei Cheng, Haining Fan, Haining Fan   +8 more
doaj   +1 more source