Simultaneous Altitude and RCS Estimation with Propagation Attenuation in Bistatic HFSWR by Zhao Kongrui, Yu Changjun, Zhou Gongjian, Quan Taifan

“…High frequency surface wave radar (HFSWR) is traditionally unable to detect target altitude information. To simultaneously estimate the target altitude and radar cross-sections (RCS) with bistatic HFSWR, a novel estimation model is proposed with the variation of the propagation attenuation, and the target echoes are utilized to construct the measurement equation. …”
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Effects of High Altitude on Sleep and Respiratory System and Theirs Adaptations by Turhan San, Senol Polat, Cemal Cingi, Gorkem Eskiizmir, Fatih Oghan, Burak Cakir

“…High-altitude (HA) environments have adverse effects on the normal functioning body of people accustomed to living at low altitudes because of the change in barometric pressure which causes decrease in the amount of oxygen leading to hypobaric hypoxia. …”
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Antioxidant Properties of Honey from Different Altitudes of Nepal Himalayas by Neupane Bishnu Prasad, Malla Komal Prasad, Kaundinnyayana Atis, Poudel Prakash, Thapa Rashmi, Shrestha Sabina

“…The obtained results demonstrate that the Nepalese honey collected from high altitude region contained more antioxidants than honey of low altitude region.…”
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Trekkers in the High-altitude Pyrenees: What Representation for Which Practice? by Radu Cristian Barna

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Genetic Variation of Lentil Landraces Across Different Altitudes in Azerbaijan by Babayeva Sevda, Shikhaliyeva Kamila, Qurbanova Qamar, Hajiyeva Sabina, Izzatullayeva Vusala, Rustamov Khanbala, Abbasov Mehraj

“…Accessions from higher altitudes such as Ismayilli and Nakhchivan contributed significantly to the observed genetic variation. …”
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Quality Control of Wind Turbine Foundation Construction in High-Altitude Mountains by GAO Shan

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Ecological and Functional Changes in the Hindgut Microbiome of Holstein Cows at High Altitudes by Gong Chen, Haibo Lu, Shangzhen Huang, Congcong Zhang, Xiaojuan Ma, Bin Li, Lingling Hou, Qing Xu, Yachun Wang

“…The extreme environmental conditions of the Qinhai–Tibetan Plateau (QTP) challenge livestock survival and productivity, yet little is known about how high-altitude environments impact the gut microbiota of dairy cows. …”
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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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Shelters in the Night. The Role of Architecture in the Process of Understanding High-Altitude Areas by Roberto Dini, Stefano Girodo

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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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Thermal Tolerance in Anuran Embryos with Different Reproductive Modes: Relationship to Altitude by Manuel Hernando Bernal, John D. Lynch

“…In addition, environmental temperature decreases with altitude, and the amphibian fauna changes. Therefore, we studied the relationship between the embryonic thermal tolerances of twelve species of anurans and the temperatures of their microhabitat along an altitudinal gradient from 430 m to 2600 m. …”
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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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The comparison of physical fitness in secondary male students in altitude and coastal areas by Esmaeil Zahıbı, Seyed Hossein Alavı

Subjects: “…aahperd test; altitude areas; physical fitness; sea level.…”
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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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A scoping review protocol on brain PaCO2 levels at altitude by Hanna Tang, Laurel Charlesworth, Manoj Lalu, Brian Dewar, Risa Shorr, Dariush Dowlatshahi

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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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