Metabolic Characteristics and Response to High Altitude in Phrynocephalus erythrurus (Lacertilia: Agamidae), a Lizard Dwell at Altitudes Higher Than Any Other Living Lizards in the World

The article discusses the use of live plants as the botanical exposition component supplement of the “Natural areas” (hall № 17 “Natural zonality and its components” and № 20 “Desert, subtropical, tropical countries, high-altitude zone”) and “Physico-georaphic regions” (hall № 24 “Continents and parts of the world”) departments in order to visualize information presented in the Earth Science Museum. Demonstration of plants originating from different regions of the world representing different life forms and being structural components of various plant communities allows to visually characterizing thematic aspects of an exposition. That in turn reveal such principles of systematic nature organization as ecobiomorphic and phytocenotic.

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High-Altitude Environment and COVID-19: SARS-CoV-2 Seropositivity in the Highest City in the World

High Altitude Medicine & Biology ◽

10.1089/ham.2021.0020 ◽

2021 ◽

Author(s):

Benoit Champigneulle ◽

Ivan Hancco ◽

Richard Renan ◽

Stéphane Doutreleau ◽

Emeric Stauffer ◽

...

Keyword(s):

High Altitude ◽

The World

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Metabolic characteristics of overwintering by the high-altitude dwelling Xizang plateau frog, Nanorana parkeri

Journal of Comparative Physiology B ◽

10.1007/s00360-020-01275-4 ◽

2020 ◽

Vol 190 (4) ◽

pp. 433-444

Author(s):

Yonggang Niu ◽

Wangjie Cao ◽

Kenneth B. Storey ◽

Jie He ◽

Jinzhou Wang ◽

...

Keyword(s):

High Altitude ◽

Metabolic Characteristics ◽

Xizang Plateau

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Global airborne microbial communities controlled by surrounding landscapes and wind conditions

Scientific Reports ◽

10.1038/s41598-019-51073-4 ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 16

Author(s):

Romie Tignat-Perrier ◽

Aurélien Dommergue ◽

Alban Thollot ◽

Christoph Keuschnig ◽

Olivier Magand ◽

...

Keyword(s):

Particulate Matter ◽

High Altitude ◽

Microbial Communities ◽

Atmospheric Chemistry ◽

Sampling Site ◽

Temporal Stability ◽

Fungal Species ◽

The World ◽

Bacteria And Fungi ◽

Over Time

Abstract The atmosphere is an important route for transporting and disseminating microorganisms over short and long distances. Understanding how microorganisms are distributed in the atmosphere is critical due to their role in public health, meteorology and atmospheric chemistry. In order to determine the dominant processes that structure airborne microbial communities, we investigated the diversity and abundance of both bacteria and fungi from the PM10 particle size (particulate matter of 10 micrometers or less in diameter) as well as particulate matter chemistry and local meteorological characteristics over time at nine different meteorological stations around the world. The bacterial genera Bacillus and Sphingomonas as well as the fungal species Pseudotaeniolina globaosa and Cladophialophora proteae were the most abundant taxa of the dataset, although their relative abundances varied greatly based on sampling site. Bacterial and fungal concentration was the highest at the high-altitude and semi-arid plateau of Namco (China; 3.56 × 106 ± 3.01 × 106 cells/m3) and at the high-altitude and vegetated mountain peak Storm-Peak (Colorado, USA; 8.78 × 104 ± 6.49 × 104 cells/m3), respectively. Surrounding ecosystems, especially within a 50 km perimeter of our sampling stations, were the main contributors to the composition of airborne microbial communities. Temporal stability in the composition of airborne microbial communities was mainly explained by the diversity and evenness of the surrounding landscapes and the wind direction variability over time. Airborne microbial communities appear to be the result of large inputs from nearby sources with possible low and diluted inputs from distant sources.

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Flying in wave conditions, priciple of lfying in wave, history and dangers

10.26552/pas.z.2021.1.40 ◽

2021 ◽

Author(s):

Ivan Bajana ◽

◽

Miriam Jarošová

Keyword(s):

High Altitude ◽

Wave Flow ◽

The World ◽

Wave Conditions ◽

Almost All ◽

And Training

Flying in wave is becoming increasingly popular for pilots of gliders and sport engine airplanes. The growing trend of flying inwave conditions can be seen not only in Slovakia but almost all over the world The reason for the increase in the number of the high-altitude flights in the wave is their great potential, which has been demostrated several times in the record books. On the cotrary, for navigation and training flights, the occurence of wave current is unsuitable. It brings with it great risks and dangers that have ended tragically many times in history. For this reason, there is a long and extesive meteorological preparation behind the wave flights. The aim of wave conditions research is to provide information on how to predict wave flow, under what conditions and with at least what equipment it is possible to fly sadely in wave current and what pitfalls and risks wave wave brings with it. The result is a range of information that can be used not only for flights into the wave but also for normal navigation or training flights.

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Comparison of thermoregulation and metabolic characteristics in Phrynocephalus vlangalii (Lacertilia, Agamidae) from different altitudes

10.21203/rs.3.rs-64008/v1 ◽

2020 ◽

Author(s):

Xiaolong Tang ◽

Huihui Wang ◽

Qiang Chen

Keyword(s):

Skeletal Muscle ◽

High Altitude ◽

Metabolic Regulation ◽

Thermal Sensitivity ◽

Liver Mitochondria ◽

Tibet Plateau ◽

Lower Percentage ◽

Proton Leak ◽

Metabolic Characteristics ◽

Different Altitudes

Abstract Background: Exploring thermoregulation and metabolic characteristics responses to high altitudes is important for understanding ectothermic animal high-altitude adaptation mechanisms. However, how could these species compensate for adverse environmental impacts are controversial and poorly understood. In the present study, the selected body temperature, mitochondrial consumption, proton leak and enzyme activity of a lizard Phrynocephalus vlangalii from different altitudes (Maduo and Golmud, with altitude at 4270 and 2750 m, respectively) were analyzed to investigate the thermoregulatory and metabolic regulation strategies of this native high-altitude lizard at Qinghai-Tibet Plateau.Results:The results indicated that the Maduo population had a faster heating rate and selected significantly lower body temperatures than those of the Golmud population. The mitochondrial oxygen consumption rates in both the liver and skeletal muscle of the Maduo population were significantly lower than those of the Golmud population, but the thermal sensitivity of skeletal muscle mitochondrial in Maduo population was significantly lower than that in Golmud population. The proton leak of liver mitochondria in the Maduo population account for a lower percentage of state III than that of the Golmud population (11.4~14.6% VS. 22.5~25.1%), which indicate a higher ATP production in liver mitochondria. The results of three enzyme activities reflect significant both tissue- and population specificity. Especially, a low ratio of LDH/CS and HOAD/CS in the liver of the Maduo population indicating that metabolism of the liver mainly depended on aerobic metabolism and especially the use of carbohydrate as a metabolic substrate in Maduo population.Conclusions: These distinct variable characteristics between two populations of P. vlangalii could be considered important strategies in thermoregulation and metabolic regulation for living at different altitudes and could be especially necessary for lizards to effectively compensate for the negative influence of cold and hypoxia at high altitude.

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PROBLEMS AND PROSPECTS OF INVOLVING ORE PROCESSING WASTE FROM THE TYRNYAUZ DEPOSIT INTO INDUSTRIAL OPERATION

News of the Tula state university. Sciences of Earth ◽

10.46689/2218-5194-2021-4-1-86-96 ◽

2021 ◽

Vol 4 (1) ◽

pp. 86-96

Author(s):

M.V. Rylnikova ◽

◽

M.V. Tsupkina ◽

R.K. Dzhappuev ◽

◽

...

Keyword(s):

High Altitude ◽

Raw Materials ◽

Ecological Impact ◽

Processing Waste ◽

Industrial Operation ◽

Ore Processing ◽

The World ◽

Industrial Use ◽

Technogenic Raw Materials ◽

Tailings Dumps

The problem of involving stale ore processing waste from the Tyrnyauz deposit into industrial operation is considered. The world experience of involving technogenic mineral formations in industrial exploitation is summarized, and the main directions of industrial use of technogenic raw materials are determined. The possible ecological impact of tailings dumps located in high-altitude areas on the ecology of the mining region is considered. The data on the formation, operation and composition of the tailings dumps of the Tyrnyauz Tung-sten-Molybdenum Combine (TVMK) are summarized. The problems are formulated and the prospects for the liquidation of tailings dumps by involving man-made raw materials in indus-trial operation are justified.

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Anthropology, Epidemiology, and High Altitude Birth Weight

Practicing Anthropology ◽

10.17730/praa.9.1.f11684x236267738 ◽

1987 ◽

Vol 9 (1) ◽

pp. 17-17

Author(s):

Lowell Sever

Keyword(s):

Public Health ◽

Birth Weight ◽

High Altitude ◽

Human Condition ◽

Human Biology ◽

Biological Anthropology ◽

Biological Variability ◽

Anthropological Perspective ◽

The World ◽

Unique Approach

Anthropology offers a unique approach to looking at and understanding the world. The basis of anthropology lies in the study of the human condition, biological and cultural, and its diversity. The anthropological perspective provides a background that increases one's awareness of human biological variability. I view biological anthropology as focusing on three interrelated areas: evolution, population variability, and relationships among human biology, culture, and the environment. Increasingly, human biology is being applied in clinically related fields concerned with public health problems. Here I consider relationships between epidemiology and biological anthropology.

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The growth of children at different altitudes in Ethiopia

Philosophical Transactions of the Royal Society of London Series B Biological Sciences ◽

10.1098/rstb.1972.0015 ◽

1972 ◽

Vol 264 (864) ◽

pp. 403-437 ◽

Cited By ~ 43

Keyword(s):

Infectious Disease ◽

Ambient Temperature ◽

High Altitude ◽

Sea Level ◽

The Other ◽

Skeletal Maturation ◽

Early Puberty ◽

Other Hand ◽

The World ◽

Different Altitudes

In this study were observed the effects of two widely differing environments on the growth and maturation of children from a presumed genetically homogeneous Ethiopian population. Major environmental differences included altitude above sea level, temperature, probably rainfall and humidity, together with the incidence of infectious disease. The results indicate that highland children, particularly boys, are taller, heavier and bigger in most physical dimensions than are lowland children. In both groups skeletal maturation is retarded (by American White standards) during later childhood; this retardation is more marked in lowlanders. In both groups, however, there is marked acceleration of skeletal maturation during early puberty. Haemoglobin values increase much more rapidly in highland children, but surprisingly, differences in chest dimensions are not particularly marked. It is concluded that hypoxia of the degree found in the high-altitude group (approximately 3000 m) is not sufficient to affect adversely the growth of children. On the other hand, the increased incidence of infectious disease in the ‘lowlands’ (approximately 1500 m) and possibly the raised ambient temperature, may restrict growth and maturation of children living in this environment. Thus, in contrast to the situation in other high-altitude parts of the world, the highlands in Ethiopia appear to be more favourable to growth than the lowlands.

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Triple Whammy: Concurrent High-Altitude Exposure and COVID-19 Infection Presenting With STEMI

Indian Journal of Clinical Cardiology ◽

10.1177/26324636211003442 ◽

2021 ◽

pp. 263246362110034

Author(s):

Rajeev Chauhan ◽

Krishna Prasad ◽

Krishna Santosh Vemuri ◽

Rohit Manoj Kumar

Keyword(s):

High Altitude ◽

Medical Management ◽

Care Center ◽

Tertiary Care ◽

Medical Emergency ◽

Symptomatic Therapy ◽

Rt Pcr ◽

Coronary Syndrome ◽

Altitude Exposure ◽

The World

Background: High altitude is associated with altered cardiovascular, pulmonary, and blood physiology which can lead to various cardiovascular complications. The world is now facing grave pandemic of COVID-19, which has affected all regions of the world including high-altitude regions. Management of COVID-19 infection along with a medical emergency like acute coronary syndrome at high altitude is extremely challenging. Case Presentation: We present a 57-year-old paramilitary officer, acclimatized to high altitude who developed sore throat, fever, and cough while he was posted at an altitude of 3,500 m. Evaluation revealed positive reverse transcriptase polymerase chain reaction (RT-PCR) test for COVID-19; hence, he was managed in isolation ward with symptomatic therapy. During the hospital stay, he developed anterior wall ST-elevation myocardial infarction (STEMI) for which he underwent thrombolysis with Tenecteplase. He underwent air evacuation to a tertiary care center located at an altitude of 320 m. Three days later, his repeat RT-PCR was negative. However, he complained of angina at rest; hence, he underwent coronary angiography which revealed significant mid-left anterior descending artery disease for which percutaneous coronary intervention was done successfully. Patient was discharged on optimal medical management, and on follow-up at 1 month he remained asymptomatic. Conclusion: This case highlights the deleterious effects of high altitude on cardiovascular system which can get worsened by COVID-19 infection. In patients suffering triple whammy of high-altitude exposure, COVID-19 infection and STEMI, multipronged approach involving timely medical management, rapid evacuation, and necessary intervention can provide optimal clinical outcomes.

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