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207 articles for “radiation”
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Research ArticleOpen accessIn the keywordsEpigenetic Regulation of Extracellular Matrix Remodeling in Skin Aging: Mechanisms and InteractionsJiguang Yang, Yusong Shi, Xiaoqing YanSkin aging results from complex interactions between genetic factors, environmental stressors, and epigenetic modifications that regulate extracellular matrix (ECM) remodeling. Accumulation of senescent cells impairs tissue regeneration through mechanisms including telomere shortening, reactive oxygen species accumulation, and ultraviolet (UV) radiation exposure. While epigenetic pathways regulate skin homeostasis, regeneration, and senescence, the specific epigenetic changes occurring during UV exposure, chronological aging, … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 4 · 15 Feb 2026 · 1,461 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSurvey of Frontier Technologies and Approaches to Enable Humans-Mars Both Safe and AffordableDennis Meyer BushnellFrontier technologies and systems that could reduce costs and improve human health and safety for human missions to Mars. Overall cost reductions increase funding opportunities for addressing serious radiation and reduce gravity health impacts for human-mars class missions. Major cost reduction/health improvement opportunities include fast transit via either starship due to low-cost chemical fuels in space, or high thrust electric … …Journal of Aircraft and Spacecraft Technology, Vol. 8, Issue 1 · 13 Nov 2024 · 7,615 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffects of Electromagnetic Field Frequency on the Behavior and Mortalities of Living OrganismsTatyana Degtyarevskaya, Andrei VokhmintsevThe objective of this investigation is to assess the influence of electromagnetic fields on living organisms. The impact of electromagnetic radiation of varying intensities on alterations in behavioral responses and mortality rates of living organisms was examined under controlled laboratory conditions at the first Moscow state medical university, named after I.M. Sechenov. The subjects of the study encompassed 10 specimens … …OnLine Journal of Biological Sciences, Vol. 24, Issue 2 · 19 Jan 2024 · 5,306 accessesView PDFCite
Research ArticleOpen accessIn the keywordsImmunological Response of Albino Rats Immunized with UV-Killed Candida albicansAhmad Ibrahim, Yahaya Abdullahi Umar, Mohammed Shehu BusuThe treatments of systemic candidiasis in humans with the current antifungal drugs of choice such as azole derivatives and amphotericin B have raised issues of toxicity and resistance among others. The immunogenic property of killed C. albicans was explored to evoke immunological response in the possible prevention of candidemia. Rats were immunized after acclimatization on two occasions with 106 cells/ml … …American Journal of Biochemistry and Biotechnology, Vol. 15, Issue 3 · 26 Jul 2019 · 7,716 accessesView PDFCite
InvestigationOpen accessIn the keywordsQuarantine Protective Measures against the Melon Flies (Myiopardalis Pardalina Big.) in KazakhstanBayan Boytayevna Toyzhigitova, Saparbek Yskak, Almat Salamatovich Dinasilov et al.In 2015-2016 years for the purpose of studying the most acceptable methods of eradicating foci of melon flies, the effectiveness of chemical and agro technical measures in field conditions of the Kyzylorda region of the Republic of Kazakhstan were determined. Practical experience in the application of various phytosanitary measures for the localization and elimination of the melon flies foci was … …OnLine Journal of Biological Sciences, Vol. 17, Issue 4 · 5 Oct 2017 · 7,884 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPolyherbal EMSA ERITIN Blocks Nuclear Factor-Kappa B (NF-κB) and Proinflammatory Cytokines in Irradiated MiceYuyun Ika Christina, Mansur Ibrahim, Muhaimin Rifa’iRadiation therapy is commonly used in cancer treatment that produce deleterious effects, such as normal cell death (apoptotic or necrotic) and suppression of hematopoietic stem cells. This effect was caused by ion rays that can rise to high of free radical. The high of free radical trigger the inflammation of cells. EMSA ERITIN is medicinal herb used as preventative agents … …American Journal of Immunology, Vol. 11, Issue 1 · 29 May 2015 · 7,525 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDURABILITY OF MIXED MORTAR LINING CONTAINING DREGS-GRITSB. P. Zanella, E. B. Sá, N. O. Acorinti et al.The improper disposal of industrial waste and exploitation of natural resources has resulted in the scarcity of river sand and environmental degradation, such as river erosions and pollution. This study aimed to assess the durability of mixed mortar lining walls and ceilings, containing 0 (default), 10 and 20% of dregs-grits compounds-waste of the pulp industry-in substitution with river sand. This … …American Journal of Environmental Sciences, Vol. 10, Issue 1 · 26 Feb 2014 · 7,599 accessesView PDFCite
Research ArticleOpen accessIn the keywordsTunneling of Dirac Particles from Phantom Reissner Nordstrom ADS Black HoleH. GoharWe study the Hawking radiation of Dirac particles from Phantom Reissner Nordstrom ADS black hole by tunneling method. We use charge relativistic Dirac equation to study the emission of such particles. To solve Dirac equation we use WKB approximation and find the tunneling probability of outgoing particles. Finally we find the Hawking temperature for such type of black holes. …Space Science International, Vol. 1, Issue 2 · 20 Jun 2013 · 8,900 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMathematical Model of Heat Transfer for Tuyere Under Non-Transparent Medium EnvironmentShen Yuan-Sheng, Li Hou-Guo, Guo Zhong-Quan, Yang HaoTo develop the mathematical model of the heat transfer relations between the tuyere and other high temperature radiation objects in BF under the non-transparent medium condition, based on the qualitative analyses of burning-mixture flow regularity, chemical reactions, heat radiations and thermotechnical characteristics of convection heat transfer occurring on the outside surface of tuyere, referring to the geometrical features of air-cooled … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 2 · 23 Apr 2013 · 7,191 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDetermination of Atmospheric Turbidity and its Correlation with Climatologically ParametersU. Ali Rahoma, A. H. HassanStudy of Atmospheric turbidity is important for purposes of meteorology, ecology, climatology and monitoring of atmospheric pollution. Linke Turbidity factor (LT) is commonly used to model the attenuation of solar radiation in the atmosphere. The probable dependence on the water vapor content of the relationship linking LT to Angstrom’s turbidity coefficient B, is discussed. In this study, a procedure for … …American Journal of Environmental Sciences, Vol. 8, Issue 6 · 28 Dec 2012 · 6,987 accessesView PDFCite