Results 101 to 110 of about 15,885,779 (299)

Bioactive compound combinations from Rhodiola tangutica alleviate pulmonary vascular remodeling in high-altitude pulmonary hypertension rats through the PI3K–AKT pathway

Frontiers in Pharmacology
BackgroundHypoxia-induced pulmonary vascular remodeling is central to the development of high-altitude pulmonary hypertension (HAPH). Rhodiola tangutica has traditionally been used to prevent chronic mountain sickness. Although its active fraction (ACRT)
Na Yang, Meiduo Huayu, Shanshan Su, Bin Hou, Zhanting Yang, Xingmei Nan, Zhanqiang Li, Zhanqiang Li   +7 more
doaj   +1 more source

Whole Atmosphere Simulation of Anthropogenic Climate Change

Geophysical Research Letters, 2018
We simulated anthropogenic global change through the entire atmosphere, including the thermosphere and ionosphere, using the Whole Atmosphere Community Climate Model‐eXtended.
Stanley C. Solomon, Han‐Li Liu, Daniel R. Marsh, Joseph M. McInerney, Liying Qian, Francis M. Vitt   +5 more
doaj   +1 more source

Medical And Physiological Considerations For A High-Altitude Mma Site

, 1996
1. Introduction 2. Medical and Physiological Effects of High Altitude 2.1 Normal Response to Hypoxia 2.2 Acclimatization 2.3 Sleep 2.4 Exercise 2.5 Mental Ability 2.6 Acute Mountain Sickness (AMS) 2.7 High Altitude Pulmonary Edema (HAPE) 2.8 High ...
P.J. Napier, A High-altitude, Mma Site, J.B. West   +3 more
core  

Differentiated Impacts of EU Rural Development Measures: A Finite Mixture Evaluation of Italian Olive Farms

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This paper examines the relationship between participation in the EU Rural Development Program and the economic performance of Italian olive farms using a finite‐mixture model with inverse‐probability‐weighted regression adjustment. Based on 2010–2022 FADN panel data, it estimates heterogeneous treatment effects while correcting for selection ...
Francesco Caracciolo, Marilena Furno
wiley   +1 more source

Mechanisms and drug therapy of pulmonary hypertension at high altitude

, 2013
Pulmonary vasoconstriction represents a physiological adaptive mechanism to high altitude. If exaggerated, however, it is associated with important morbidity and mortality.
Allemann, Yves, Scherrer, Urs, Rimoldi, S.F., Sartori, Claudio, Rexhaj, E., Rexhaj, Emrush, Sartori, C., Scherrer, U., Allemann, Y., Rimoldi, Stefano, Allemann Y, Rexhaj E, Rimoldi SF, Sartori C, Scherrer U   +14 more
core   +1 more source

3D Closed‐Loop Navigation of Magnetic Microswimmers Using Vision‐Derived Depth Feedback

Advanced Intelligent Systems, EarlyView.
A planar magnetic microswimmer is navigated in three dimensions under a standard microscope. Image defocus supplies a real‐time depth cue, and model‐predictive control with A* planning steers the body on surfaces and in free swimming. Axial position is regulated by propulsion alone, without magnetic field gradients or extra cameras.
Yasin Cagatay Duygu, Sangwon Lee, Min Jun Kim   +2 more
wiley   +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

Performance Evaluation of Super‐Resolution Techniques for Characterization and Phenotyping of Commodity Crops Using Multispectral Imagery

Advanced Intelligent Systems, EarlyView.
This study assesses the suitability and performance of single‐image super‐resolution methods when applied directly, and without any fine‐tuning, to multispectral images of maize and sunflower crops. It evaluates not only super‐resolution performance, but also the preservation of spectral integrity and vegetation‐index reliability. Multispectral imagery
Abhiram Karukayil, João F. C. Mota, Mateo Vásquez‐Guevara, Tito Arevalo‐Ramirez, Fernando Auat Cheein   +4 more
wiley   +1 more source

Arachidonic Acid Metabolism Pathway Is Not Only Dominant in Metabolic Modulation but Associated With Phenotypic Variation After Acute Hypoxia Exposure

Frontiers in Physiology, 2018
Background: The modulation of arachidonic acid (AA) metabolism pathway is identified in metabolic alterations after hypoxia exposure, but its biological function is controversial.
Chang Liu, Chang Liu, Chang Liu, Bao Liu, Bao Liu, Bao Liu, Bao Liu, Lu Liu, Lu Liu, Lu Liu, Er-Long Zhang, Er-Long Zhang, Er-Long Zhang, Bind-da Sun, Bind-da Sun, Bind-da Sun, Gang Xu, Gang Xu, Gang Xu, Jian Chen, Jian Chen, Jian Chen, Yu-qi Gao, Yu-qi Gao, Yu-qi Gao   +24 more
doaj   +1 more source

Skeletal Muscle Adaptations to Prolonged Exposure to Extreme Altitude : A Role of Physical Activity?

, 2008
Mizuno, Masao, Gabrielle K. Savard, Nils-Holger Areskog, Carsten Lundby, and Bengt Saltin. Skeletal Muscle Adaptations to Prolonged Exposure to Extreme Altitude: A Role of Physical Activity? High Alt. Med. Biol.
Mizuno, Masao,, Areskog, Nils-Holger,, Saltin , Bengt,, Savard, Gabrielle K,, Lundby, Carsten,   +4 more
core   +1 more source