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37 articles for “Radiation Dose”
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Research ArticleOpen accessEvery word in the titleEvaluation the Synergistic Effect of High Dose Radiation of Radioiodine on the Immune System Suppressed By CyclosporineMehrosadat Alavi, Mohammad Ali Okhovat, Kourosh Bamdad et al.Cyclosporine is an immunosuppressant drug and iodine-131 is the diagnostic and therapeutic radioisotope in nuclear medicine. In this study, we aimed to evaluate the synergistic effect of high-dose radiation of radioiodine on the suppression of the immune system of BALB/cmice after receiving cyclosporine. A total of 50 mice BALB/c were randomly divided into two groups (control and test). Then, 50 … …American Journal of Immunology, Vol. 11, Issue 3 · 28 Sep 2015 · 6,877 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDetermination of Absorbed and Effective Dose from Natural Background Radiation around a Nuclear Research FacilityMuhammad Auwal Musa, Idris Isa Funtua, Simon Peter Malam, Abdullahi Suleiman ArabiProblem statement: This study presents result of outdoor absorbed dose rate and estimated effective dose from the naturally occurring radionuclides 232Th and 238U series 40K, around a Nuclear Research Reactor at the Centre for Energy Research and Training (CERT), Zaria, Nigeria. Approach: A high-resolution in situ γ-ray spectrometry was used to carry out the study. CERT houses a 30Kw Research … …American Journal of Environmental Sciences, Vol. 7, Issue 2 · 26 May 2011 · 7,191 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRadiosensitivity Assessment and the Impact of Gamma Radiation on the Growth and Diversity of Pennisetum purpureum Cv Mot in Marginal LandBela Putra, Budi PrasetyaThis study aims to assess the radiosensitivity of Pennisetum purpureum cv Mott, with the primary objectives of determining the LD50 value, evaluating the effects of gamma radiation doses on plant growth and diversity, and elucidating the specific goals of irradiation in relation to the overall research. The research encompasses a wide range of radiation doses, ranging from 0-400 Gy, including … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 1 · 20 Dec 2023 · 5,641 accessesView PDFCite
Research ArticleOpen accessIn the keywordsBackground Gamma Radiation in Nigerian Market EnvironmentChinyere Ononugbo, Uzochukwu AnekweHuman exposure to ionizing radiation from natural sources is an unending and unpreventable phenomenon on earth. Radiation profile and exposure risks for some major markets in Port Harcourt metropolis have been ascertained using radiation exposure rate meter (Radalert-100). The exposure rate measured at mile 3 market and its environs ranged from 0.001±0.0001 to 0.022±0.003 mRh-1 with mean value of 0.014±0.002 … …American Journal of Environmental Sciences, Vol. 16, Issue 3 · 22 Jul 2020 · 7,119 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 · 7,878 accessesView PDFCite
Research ArticleOpen accessIn the keywordsFractional Calculus Theoretical Evolution for Radiation QuantitiesAmin Al-Okour, Sherin A. Sareireh, Abdullah Ajlouni, Abdul-Wali AjlouniProblem statement: Radiation dosimetry features depend on semi-empirical formulas that lack a strong mathematical framework. This is due to the fact that the microscopic radiation interaction with matter includes energy losses that have never been described properly in quantum mechanics, which deals with conserved energy systems. Approach: Using the recent theory of the quantization of nonconservative systems using fractional calculus. … …Journal of Mathematics and Statistics, Vol. 8, Issue 1 · 2 Feb 2012 · 6,661 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAn Estimation of X-Radiation Output using Mathematic ModelSuchart Kothan, Montree TungjaiProblem statement: Diagnosis x-ray radiation safety is key in medical examination. The quantity of patient radiation doses is beneficial for radiation protection of the patient. It was proposed that the equation for estimating the output (milliReongent, mR) from x-ray machines. Approach: A was 0.5, 0.8 and 1.0 for single phase, three phases and high frequency x-ray machines, respectively. To compare … …American Journal of Applied Sciences, Vol. 8, Issue 9 · 13 Aug 2011 · 7,753 accessesView PDFCite
Research ArticleOpen accessIn the keywordsIdentification the Specific Relationships among Physical Parameters which Use to Quantify Inactivation Effect of Charged Particles at Low DosesAbubaker Ali Yousif, Ismail Bin Bahari, Muhamad Samudi YasirProblem statement: The relationships among physical qualities parameters which are characterized charged particles are not extensively determined for all types of ionizing radiations; the specific physical parameters that are also qualified to quantify the radiation effects of charged particles have been investigated. Approach: Secondary data of charged particles which are used to irradiate mammalian cells in vitro has been employed … …Physics International, Vol. 1, Issue 2 · 31 Dec 2010 · 6,528 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Comprehensive Review of Medical Image Denoising: Techniques, Challenges, Applications and Future DirectionsMohit Sharma, Ayush Dogra, Anita Gupta et al.The concept of noise reduction in medical images plays a vital role in improving image quality and accuracy associated with diagnosis, and facilitating reliable automated analysis. This survey presents a structured overview of medical image denoising, beginning with foundational definitions and noise models for modalities such as MRI and CT. We critically evaluate persistent gaps, including the limited generalizability of … …Journal of Computer Science, Vol. 22, Issue 3 · 28 Mar 2026 · 1,849 accessesView PDFCite
Research ArticleOpen accessIn the abstractEpigenetic 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 · 1,458 accessesView PDFCite