Results 41 to 50 of about 848,646 (303)

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +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

Effect of dietary supplementation of microalgae Spirulina and Chlorella on growth performance and blood profile of broiler chicken at high altitude

Indian Journal of Animal Sciences, 2022
The objective of this study was to explore the effect of Spirulina and Chlorella as a dietary supplement on the growth performance of broiler chicken at high altitude.
SWATI, KAMRAN WAIDHA, SUBANGGI NEGAM, NAZIA PARVEEN, DEACHAN CHUSKIT, MAYARNGAM K, O P CHAURASIA   +6 more
doaj   +1 more source

High altitude dermatology

Indian Journal of Dermatology, 2017
Approximately, 140 million people worldwide live permanently at high altitudes (HAs) and approximately another 40 million people travel to HA area (HAA) every year for reasons of occupation, sports or recreation. In India, whole of Ladakh region, part of Northwest Kashmir, Northern part of Sikkim and Tenga valley of Arunachal are considered inhabited ...
openaire   +3 more sources

Light‐Driven Quadrupedal Walking Biohybrid Robot With Antagonistic Muscle‐Rings and Inclined Joints

Advanced Robotics Research, EarlyView.
This work presents a light‐driven quadrupedal walking biohybrid robot powered by antagonistic muscle‐rings that achieve alternating walking gait. Optical training improved reproducibility of cultured muscle tissues, while caffeine treatment enhanced contractile force.
Shotaro Saito, Byeongwook Jo, Tomohiro Morita, Shota Noda, Minghao Nie, Shoji Takeuchi   +5 more
wiley   +1 more source

Remote ischemic preconditioning improves cognitive control in healthy adults: Evidence from an event-related potential study

Frontiers in Neuroscience, 2022
It is suggested that remote ischemic preconditioning (RIPC) may be a promising treatment for improving healthy adults’ cognitive control. However, direct empirical evidence was absent. Therefore, this study aims to provide evidence for the impact of RIPC
Yaling Li, Yaling Li, Yaling Li, Pei Huang, Pei Huang, Pei Huang, Jun Huang, Zhifeng Zhong, Zhifeng Zhong, Zhifeng Zhong, Simin Zhou, Simin Zhou, Simin Zhou, Huaping Dong, Huaping Dong, Huaping Dong, Jiaxin Xie, Jiaxin Xie, Jiaxin Xie, Yu Wu, Yu Wu, Yu Wu, Peng Li, Peng Li, Peng Li   +24 more
doaj   +1 more source

Chronic Hypoxia Disrupts Spermatogenesis Through ASXL2–EZH2–Mediated Microtubule Destabilization

Advanced Science, EarlyView.
This study reveals the mechanism by which chronic hypoxia impairs spermatogenesis via the ASXL2–EZH2 axis, hindering the transition of spermatids from round to elongated forms. Key findings reveal that under hypoxic conditions, downregulated ASXL2 expression reduces EZH2 binding to the CEP162 promoter, leading to decreased H3K27me3 modification and ...
Jun Yin, Mengjie Zhang, Wenying Liu, Wenlong Shen, Debao Li, Hongming Miao, Fang Deng, Gang Zhang, Yi Tian, Yi Zhang, Zhihu Zhao, Bing Ni   +11 more
wiley   +1 more source

IL-10 Dysregulation in Acute Mountain Sickness Revealed by Transcriptome Analysis

Frontiers in Immunology, 2017
Acute mountain sickness (AMS), which may progress to life-threatening high-altitude cerebral edema, is a major threat to millions of people who live in or travel to high altitude.
Bao Liu, Bao Liu, Bao Liu, Jian Chen, Jian Chen, Jian Chen, Long Zhang, Yixing Gao, Yixing Gao, Yixing Gao, Jianhua Cui, Erlong Zhang, Erlong Zhang, Erlong Zhang, Gang Xu, Gang Xu, Gang Xu, Yan Liang, Yu Liang, Jian Wang, Yuqi Gao, Yuqi Gao, Yuqi Gao   +22 more
doaj   +1 more source

Hydrochemical and quality assessment of irrigation water at the trans-himalayan high-altitude regions of Leh, Ladakh, India

Applied Water Science, 2022
A total of seventy irrigation water samples were collected from Leh, Ladakh, India, to determine their hydrochemistry profile and water quality for irrigation purposes.
Arup Giri, Vijay K. Bharti, Sahil Kalia, Krishna Kumar, Mayarngam Khansu   +4 more
doaj   +1 more source

Enhanced Placental Mitochondrial Respiration in Tibetan Women at High Altitude

Frontiers in Physiology, 2021
Living at high altitudes is extremely challenging as it entails exposure to hypoxia, low temperatures, and high levels of UV radiation. However, the Tibetan population has adapted to such conditions on both a physiological and genetic level over 30,000 ...
Huifang Liu, Huifang Liu, Huifang Liu, Noryung Tenzing, Noryung Tenzing, Noryung Tenzing, Martha Tissot van Patot, Muge Qile, Muge Qile, Ri-li Ge, Ri-li Ge, Tana Wuren, Tana Wuren   +12 more
doaj   +1 more source