Results 31 to 40 of about 2,849,596 (321)

Dietary nitrate increases arginine availability and protects mitochondrial complex I and energetics in the hypoxic rat heart [PDF]

, 2014
This is the final version. It was first published by Wiley in The Journal of Physiology at http://onlinelibrary.wiley.com/doi/10.1113/jphysiol.2014.275263/abstract.Hypoxic exposure is associated with impaired cardiac energetics in humans and altered ...
Andrew J. Murray, Andrew S. Cowburn, Bernadette O. Fernandez, Cristina Branco‐Price, James A. West, Julian L. Griffin, Lisa C. Heather, Martin Feelisch, Pon LA, Quitter F, Randall S. Johnson, Tom Ashmore   +11 more
core   +2 more sources

Evaluation of physico-chemical and heavy metals status in irrigation, stagnant, and Indus River water at the trans-Himalayan region

Discover Water, 2023
The water quality of various resources is changing everywhere, including the high-altitude region, which may have adverse health effects on animals and the human population.
Guru Charan, Vijay K. Bharti, Arup Giri, Prabhat Kumar   +3 more
doaj   +1 more source

Occlusion preconditioned mice are resilient to hypobaric hypoxia-induced myocarditis and arrhythmias due to enhanced immunomodulation, metabolic homeostasis, and antioxidants defense

Frontiers in Immunology, 2023
BackgroundSea-level residents experience altitude sickness when they hike or visit altitudes above ~2,500 m due to the hypobaric hypoxia (HH) conditions at such places.
Gabriel Komla Adzika, Richard Mprah, Ruqayya Rizvi, Adebayo Oluwafemi Adekunle, Marie Louise Ndzie Noah, Prosperl Ivette Wowui, Seyram Yao Adzraku, Joseph Adu-Amankwaah, Fengli Wang, Yuwen Lin, Lu Fu, Xiaomei Liu, Jie Xiang, Hong Sun   +13 more
doaj   +1 more source

Positioning and recovering of fixed-wing UAV using updating final-state control and adaptive nonstationary control

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2023
Descent deceleration using parachutes is widely used in the aerospace field for scenarios such as weather observation using the descent of high-altitude balloons (radiosondes), re-entry during space sample return, and emergency drone landings.
Susumu HARA, Mizuki HIRAI
doaj   +1 more source

Modeling the dominance of the gradient drift or Kelvin-Helmholtz instability in sheared ionospheric E x B flows [PDF]

, 2021
Studies have shown that in sheared $\mathbf{E}\times\mathbf{B}$ flows in an inhomogeneous ionospheric plasma, the gradient drift (GDI) or the Kelvin-Helmholtz (KHI) instability may grow. This work examines the conditions that cause one of these instabilities to dominate over the other using a novel model to study localized ionospheric instabilities ...
arxiv   +1 more source

Hypobaric hypoxia induces iron mobilization from liver and spleen and increases serum iron via activation of ghrelin/GHSR1a/MAPK signalling pathway in mice

Scientific Reports, 2023
Hypobaric hypoxia (HH) exposure affects appetite and serum iron levels in both humans and animals. Thus, whether appetite-regulating ghrelin is involved in iron regulation under HH needs to be elucidated. In vivo, C57BL/6J mice were placed in a hypobaric
Wanping Yang, Jiayan Li, Jianan Hu, Xiaoyu Yuan, Jie Ding, Hui Jiang, Guohua Wang, Qianqian Luo   +7 more
doaj   +1 more source

The Thousand Star Magnitudes in the Catalogues of Ptolemy, Al Sufi, and Tycho Are All Corrected For Atmospheric Extinction [PDF]

, 2012
Three pre-telescopic star catalogues contain about a thousand star magnitudes each (with magnitudes 1, 2, 3, 4, 5, and 6), with these reported brightnesses as the original basis for what has become the modern magnitude scale.
Schaefer, Bradley E.
core   +3 more sources

Appetite and gut hormone responses to moderate-intensity continuous exercise versus high-intensity interval exercise, in normoxic and hypoxic conditions. [PDF]

, 2015
This study investigated the effects of continuous moderate-intensity exercise (MIE) and high-intensity interval exercise (HIIE) in combination with short exposure to hypoxia on appetite and plasma concentrations of acylated ghrelin, peptide YY (PYY), and
Alkahtani, Ariyasu, Banks, Bartlett, Bigaard, Borg, Bryna C. Chrismas, Burns, Canoy, Catenacci, Catherine J. Kerr, Charlot, Chelikani, Daniel P. Bailey, David J. Stensel, Debevec, Deighton, Deighton, Deighton, Dill, Evero, Faul, Flint, Gibala, Goodyear, Grafen, Hommel, Hosoda, Jessica A. Douglas, Kalson, Kayser, Kelly, Kessler, Kevin Deighton, King, Koliaki, Lee Taylor, Lindsey R. Smith, Loshbaugh, Martins, Mifflin, Morton, Murphy, Nakagawa, Ross, Saad, Schaller, Schubert, Sim, Snyder, Stubbs, Tsilchorozidou, Ueda, Ueda, Vandenbogaerde, Wasse, West, Westerterp-Plantenga, Williams, Wolff   +59 more
core   +3 more sources

Excessive gas exchange impairment during exercise in a subject with a history of bronchopulmonary dysplasia and high altitude pulmonary edema [PDF]

, 2007
A 27-year-old male subject (V(O2 max)), 92% predicted) with a history of bronchopulmonary dysplasia (BPD) and a clinically documented case of high altitude pulmonary edema (HAPE) was examined at rest and during exercise.
Andrew T. Lovering, Garg M., Hans C. Haverkamp, John S. Hokanson, Knudson R.J., Lee M. Romer, Marlowe W. Eldridge   +6 more
core   +1 more source

Modulations of Neuroendocrine Stress Responses During Confinement in Antarctica and the Role of Hypobaric Hypoxia

Frontiers in Physiology, 2018
The Antarctic continent is an environment of extreme conditions. Only few research stations exist that are occupied throughout the year. The German station Neumayer III and the French-Italian Concordia station are such research platforms and human ...
Claudia Strewe, Detlef Thieme, Carole Dangoisse, Barbara Fiedel, Floris van den Berg, Holger Bauer, Alex P. Salam, Petra Gössmann-Lang, Patrizia Campolongo, Dominique Moser, Roel Quintens, Marjan Moreels, Sarah Baatout, Sarah Baatout, Eberhard Kohlberg, Gustav Schelling, Alexander Choukèr, Matthias Feuerecker   +17 more
doaj   +1 more source