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18 articles for “High altitude”
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Research ArticleOpen accessPhrase in the titleThe Effect of High Altitude on Blood Hormones in Male Westar Rats in South Western Saudi ArabiaFahaid H. Al-HashemProblem statement: Living in high altitude areas results in chronic hypoxia, which induces complex metabolic and endocrine adaptations. The current study investigated the endocrine responses of male Westar rats chronically exposed to high altitude-induced hypoxia in Abha City, in Southwestern Saudi Arabia. Approach: The rats were separated in to 2 groups of 10 rats. The first group was kept at … …American Journal of Environmental Sciences, Vol. 6, Issue 3 · 30 Jun 2010 · 7,202 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSustainable Technology for Agriculture at Extreme Altitudes: Design and Evaluation of a Sprinkler Irrigation System in a Peruvian High Andean CommunityJuan Eduardo Suarez Rivadeneira, Freddy A. Manayay, Daniel Olivier Carranza Lizana et al.In high-altitude agroecosystems, erratic rainfall patterns and steep topography severely constrain crop productivity by exposing plants to soil water deficits during critical phenological stages. This study aimed to enhance the productivity of eleven staple and horticultural crops corn (Zea mays), tomato (Solanum lycopersicum), cucumber (Cucumis sativus), eggplant (Solanum melongena), lettuce (Lactuca sativa), carrot (Daucus carota), barley (Hordeum vulgare), celery (Apium … …OnLine Journal of Biological Sciences, Vol. 26, Issue 4 · 2 Oct 2026 · 645 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleApplication of Meal Feeding and Skip-A-Day Feeding With or Without Probiotics for Broiler Chickens Grown at High-Altitude to Prevent Ascites MortalityAli Saffar, Fariborz KhajaliProblem statement: Ascites is a common rapid-growth-related problem in broiler chickens grown at high altitude where the partial pressure of oxygen is low and is marginally adequate to support the growth performance and ascites-related variables. A mismatch between the growth of oxygen supplying organs and the oxygen demanding organs causes ascites in broiler chickens. In the present study, broilers were … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 1 · 31 Mar 2010 · 8,696 accessesView PDFCite
Review ArticleOpen accessIn the keywordsProject HARPRelly Victoria Petrescu, Raffaella Aversa, Bilal Akash et al.The HARP project, abbreviated from the High Altitude Project, was considered a joint project of the United States Department of Defense and Canada's Department of Defense, originally designed to study low-cost re-entry vehicles. Generally, such projects used rocket launchers to launch missiles, costly and often inefficient. The HARP project used a non-rocket space launch method based on a very large … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 4 · 7 Nov 2017 · 19,789 accessesView PDFCite
Literature ReviewOpen accessIn the keywordsAbout Bell Helicopter FCX-001 Concept Aircraft-A Short ReviewRelly Victoria Petrescu, Raffaella Aversa, Bilal Akash et al.Bell Helicopter is always preparing beautiful surprises for us, so this year has not been outdone and has revealed its vision of its future aircraft model FCX-001, a true vertical elevator, ment to can climb to high altitudes in a record time, with an enviable dynamics and maneuverability. The first appearance of the new model FCX-001 took place at Heli … …Journal of Aircraft and Spacecraft Technology, Vol. 1, Issue 2 · 29 Jun 2017 · 14,021 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Altitude on Species Diversity and Vegetation Structure of Kigelia africana Parklands in CameroonAwé Djongmo Victor, Vroh Bi Tra Aimé, Noiha Noumi Valery et al.In the Faro Subdivision (North, Cameroon), there are populations of Kigelia africana, known by the common name “Dambale", whose variety is largely unknown. The study's goal is to demonstrate how altitude affects species diversity and vegetation structure in Kigelia africana parklands. To gather information for statistical analysis, a Randomized Complete Block Design (RCBD) was employed. A total of 90 quadrats … …American Journal of Agricultural and Biological Sciences, Vol. 20, Issue 1 · 20 Dec 2025 · 3,176 accessesView PDFCite
Research ArticleOpen accessIn the abstractDose-Dependent Neurotoxic Effects of Monosodium Glutamate and its Potential Genetic Transmission in MiceYanan Zou, Qiong Liang, Lu Liu et al.This study aimed to preliminarily investigated the neurotoxic effects of monosodium glutamate on mice and their pups, and the potential possibility of a genetic mechanism influencing the pups. In this study, mice were given different doses of Monosodium Glutamate (MSG) at doses of 2.0 or 4.0 g/kg body weight for 10 continuous days, and its impacts on both the mice … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 3 · 14 Nov 2025 · 3,031 accessesView PDFCite
Research ArticleOpen accessIn the abstractDietary Protein and Energy Levels at 3200 m Altitude for Slow-Growing ChickensMariela Ketty Meza-Morveli, Liz Beatriz Chino-Velasquez, Jesús Camero DeLaCuba et al.The extent to which energy and protein (CP) levels can be reduced without impacting productivity in slow-growing chickens remains undetermined. The treatments were conducted to evaluate the effect of dietary CP (17.5, 19, and 20.5%) and energy (2850-2950 kcal ME/kg) on slow-growing chickens using an ideal protein concept at a high altitude (3200 m). We used a total of 144 … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 4 · 20 Dec 2024 · 5,275 accessesView PDFCite
Research ArticleOpen accessIn the abstractDistribution Pattern of SN in Qinghai-Tibet Plateau and Its Relationship with Environmental FactorsXibo Feng, Yan He, Yi Zhang et al.Studying the distribution pattern and driving mechanism of Soil Nitrogen (SN) in the agricultural areas of the Qinghai-Tibet Plateau is of certain significance for the rational use of N fertilizer, improving the quality of land use and protecting the environment. The SN content of cultivated soil in Qinghai-Tibet Plateau agricultural areas was analyzed by combining geographical and meteorological factors. It … …American Journal of Biochemistry and Biotechnology, Vol. 16, Issue 3 · 2 Jul 2020 · 6,625 accessesView PDFCite
Research ArticleOpen accessIn the abstractSpace Distribution of Highland Barley GNS and its Relationship with Environmental Factors in the Qinghai-Tibet PlateauXibo Feng, Gaihua Wang, Jianlin WangIn order to study the space distribution of Grain Number per spike (GNS) and its relationship with the environmental factors in the Qinghai-Tibet Plateau, 83 data samples from different ecological areas were selected for GNS inverstigation. Meanwhile, the seeds of highland barley were harvested and planted in the farm of Xizang Agriculture and Animal Husbandry College; the varieties without genetic … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 2 · 26 Apr 2018 · 10,833 accessesView PDFCite