Acid-Base Status Disturbances in Patients on Chronic Hemodialysis at High Altitudes by Javier Enrique Cely, Oscar G. Rocha, María J. Vargas, Rafael M. Sanabria, Leyder Corzo, Roberto E. D'Achiardi, Eduardo A. Zúñiga

“…Normal values for the altitude of Bogotá were taken into consideration for the interpretation of the arterial blood gases. …”
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Variations in Postpartum Hemoglobin Values in Maternal Patients Residing at High Altitude by Jhofre Vinicio Prado Quilambaqui, Ximena Elizabeth Trujillo Romero, Olga Cristina Solis Solis

“…<strong><br />Objective:</strong> to identify variations in hemoglobin values after childbirth in patients living at high altitude who were treated in a hospital in the Sierra region of Ecuador. …”
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Genome Sequencing Reveals the Adaptation of Chickens to High Altitudes in Different Regions by Yizhou Hu, Xing Li, Qixin Guo, Lan Huang, Hao Bai, Guobin Chang

“…Our results provide evidence of genetic diversity among different chicken breeds and reveal the mechanisms of adaptation to high altitudes.…”
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Analysis of the Magnus Moment Aerodynamic Characteristics of Rotating Missiles at High Altitudes by Yihang Xu, Shaosong Chen, Hang Zhou

“…The Magnus force direction did not change with the change of the altitude and the angle of attack at low angles of attack; however, it changed with altitude at an angle of attack of 30°. …”
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Positive end-expiratory pressure and risk of postoperative pulmonary complications in patients living at high altitudes and undergoing surgery at low altitudes: a single-centre, retrospective observational study in China by Zhuoning Li, Kaixi Shang, Zongjing Xia, Xiaoli Ye, Chongcong Gong

“…Objectives To examine whether a high positive end-expiratory pressure (PEEP ≥5 cmH2O) has a protective effect on the risk of postoperative pulmonary complications (PPCs) in a cohort of patients living at high altitudes and undergoing general anaesthesia.Design Retrospective, observational study.Setting A tertiary hospital in China.Participants Adult Tibetan patients living at high altitudes (≥3000 m) and who went to the low-altitude plain to undergo non-cardiothoracic surgery under general anaesthesia, from January 2018 to April 2020.Measurements This study included 1905 patients who were divided according to the application of an intraoperative PEEP: low PEEP (&lt;5 cmH2O, including 0 cmH2O) or high PEEP (≥5 cmH2O). …”
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A Study on the Evolution of Emission Altitude with Frequency Among 104 Normal Pulsars by Chaoxin Luo, Xin Xu, Changrong Du, Qijun Zhi

“…Utilizing the databases from the European Pulsar Network (EPN), the Australia Telescope National Facility (ATNF), and published literature data, a geometric method was used to investigate the multifrequency emission altitude of 104 pulsars. We found that the evolution of emission altitudes with frequency for the majority of pulsars can be fitted using a power-law function with a normalization constant. …”
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Modeling and Invulnerability Analysis of Multilayer Air Traffic Network considering Altitude Layer by Guangjian Ren, Yin Liu

“…By defining the association between the altitude layers and the waypoints, a multilayer air network model considering the altitude layer is constructed. …”
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Autonomous Landing Guidance for Quad-UAVs Based on Visual Image and Altitude Estimation by Lingxia Mu, Shaowei Cao, Youmin Zhang, Xielong Zhang, Nan Feng, Yuan Zhang

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Validity of a machine learning estimation of blood volumes during altitude training by Basile Moreillon, Bastien Krumm, Lena Mettraux, Julian Wackernell, James Spragg, Martin Faulhaber, Raphael Faiss

“… Introduction Altitude training is widely used in endurance sports to improve near sea-level performance through physiological adaptations. …”
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Seasonal and Altitude Dependence of Thermospheric Metastable Helium Densities Measured by Fluorescence Lidar by C. Geach, B. Kaifler

“…We report on a series of 51 measurements by this instrument spanning an entire winter season and extending to an altitude of 1,000 km, revealing a broad He(23S) layer that peaks at higher altitudes than previously expected.…”
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A scoping review protocol on brain PaCO2 levels at altitude. by Hanna Tang, Laurel Charlesworth, Manoj Lalu, Brian Dewar, Risa Shorr, Dariush Dowlatshahi

“…Little is known about how rapid changes of altitude and atmospheric pressure can impact cerebral perfusion and ischemic burden. …”
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Évolution d’un commun d’altitude : entre matérialité et immatérialité by Isabelle Bagdassarian, Adrien Peneranda, Catherine Baron

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Features of the anatomical structure of leaves depending on the high-altitude growth of apricot in Dagestan by D. M. Anatov, Z. M. Asadulaev, Z. R. Ramazanova, R. M. Osmanov

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THE IMPACT OF ALTITUDE TRAINING ON LUNG ADAPTATION AND ENDURANCE IMPROVEMENT IN ELITE VOLLEYBALL ATHLETES by Nora DEDA

Subjects: “…altitude training, pulmonary capacity, VO2 max, endurance, volleyball, erythropoietin, hemoglobin.…”
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UAV Localization Method with Keypoints on the Edges of Semantic Objects for Low-Altitude Economy by Yineng Li, Qinghua Zeng, Chen Shao, Peng Zhuo, Bowen Li, Kecheng Sun

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Neolithic pastoralism and plant community interactions at high altitudes of the Pyrenees, southern Europe by Irene Julián-Posada, Graciela Gil-Romera, Sandra Garcés-Pastor, Peter D. Heintzman, Daniel Gómez, Federico Fillat, Ana Moreno, Javier Lara-Recuero, Pere Bover, Lourdes Montes, Alejandro Sierra, Blas Valero-Garcés, Inger G. Alsos, Penélope González-Sampériz

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FLIGHT HOURS AND BMI AGAINST TUC IN HYPOBARIC CHAMBER ALTITUDE 25.000 FEET by Zakiah Nada Nuralfilail, Pritha Maya Savitri, Niniek Hardini, Aulia Chairani, Andriyanto, Agus Budi Maryoto, Samsul A., Yaya Kardiana, Agus Cakrahaya

“…Conclusion: After examining 53 subjects, it was found that there was no relationship between total flight hours and TUC (p-value = 1.000) or BMI and TUC( p-value = 0.307) in the hypobaric chamber at an altitude of 25.000 feet.…”
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Seasonal Characteristics, Sources and Pollution Pathways of PM10 at High Altitudes Himalayas of India by Nikki Choudhary, Priyanka Srivastava, Monami Dutta, Sauryadeep Mukherjee, Akansha Rai, Jagdish Chandra Kuniyal, Renu Lata, Abhijit Chatterjee, Manish Naja, Narayanasamy Vijayan, Tuhin Kumar Mandal, Sudhir Kumar Sharma

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The Channel Estimation and Modeling in High Altitude Platform Station Wireless Communication Dynamic Network by Xiaoyang Liu, Xiaoping Zeng, Chao Liu, Wanping Liu, Yihao Zhang

“…In order to analyze the channel estimation performance of near space high altitude platform station (HAPS) in wireless communication system, the structure and formation of HAPS are studied in this paper. …”
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Deep learning‐based unmanned aerial vehicle detection in the low altitude clutter background by Zeyang Wu, Yuexing Peng, Wenbo Wang

“…Abstract Unmanned aerial vehicles (UAVs), widely used due to their low cost and versatility, pose security and privacy threats, which calls for their reliable recognition at low altitudes. However, strong ground clutter and multipath effects severely interfere with the weak radar echoes reflected off the micro‐UAVs, resulting in severe degradation of recognition reliability. …”
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