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Determinant factors for sperm transfer and sperm storage within Ceratitis capitata (Diptera: Tephritidae) and impact on Sterile Insect Technique J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2021-01-19 Meriem Msaad Guerfali; Claude Chevrier
ABSTRACT The Sterile Insect Technique (SIT) is a method of pest control used in the management of Ceratitis capitata (Medfly). This technique is based on the mating and transfer of ejaculate sperm to the wild female population from released sterile males. This transfer will induce sterility in the female through sperm dominant lethal mutations. Consequently, the factors influencing sperm transfer and
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Gamma-ray spectrometric survey for mineral exploration at Baljurashi area, Saudi Arabia J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2021-01-11 Mansour S. Alhumimidi; Essam Aboud; Faisal Alqahtani; Abdullah Al-Battahien; Ramzi Saud; Hamad H. Alqahtani; Nauf Aljuhani; Mazen M. Alyousif; Khaled A. Alyousef
ABSTRACT Mineral resources exploration in the Kingdom of Saudi Arabia became an important target for the Saudi government. Nowadays, the economic vision of the country is to move away from oil-based country to multisource energy-based country. In Baljurashi area there were ancient mines for Copper, Cobalt, Magnesium, Zircon, and some other minerals. In the current study, we aim to evaluate the Baljurashi
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Estimation of the central-axis-reference percent depth dose in a water phantom using artificial intelligence J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2021-01-11 Fernando Patlan-Cardoso; Suemi Rodríguez-Romo; Oscar Ibáñez-Orozco; Katya Rodríguez-Vázquez; Francisco Javier Vergara-Martínez
ABSTRACT The water phantom is used as a standard device for the calibration of measuring instruments used in radiation therapy. To carry out this calibration, it is essential to characterize the distribution of the percent depth dose (PDD) along the central reference axis, since this is where the instruments to be calibrated are located. The PDD depends on some magnitudes, such as the size of the field
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Effects of cobalt ions and cobalt nanoparticles on transient expression of gus gene in catharanthus roseus suspension cultures J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2021-01-04 Ahmed Sayed Fouad; Rehab Mahmoud Hafez
ABSTRACT Agrobacterium tumefaciens mediated transformation is a major tool in plant biotechnology. Catharanthus roseus suspension cultures were inoculated with A. tumefaciens strain carrying β-glucuronidase (gus) gene in presence of either Co2+ or cobalt nanoparticles (CoNPs) at 2.5, 5, 7.5, and 10 mg/L. Co2+ at 2.5 mg/L as well as CoNPs at 2.5, 5, and 7.5 mg/L enhanced expression of gus gene in plant
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Relationship between radon concentration and physicochemical parameters in groundwater of Erbil city, Iraq J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-12-28 Rupak Wasman Qadir; Nabaz Asaad; Karwan Wasman Qadir; Saddon T. Ahmad; hewa y Abdullah
ABSTRACT This study portrays the relationship between Radon activity concentration and physicochemical parameters in groundwater in Erbil city, Iraq. Primary data of groundwater samples were collected from five different zones in Erbil, during February 2019. Water samples were collected for both Radon measurement and physicochemical analysis. Water samples were taken from 24 different wells as a reference
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Knowledge of COVID-19 infection control among healthcare workers in radiology departments in Saudi Arabia J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-12-18 Rowa Aljondi; Salem Saeed Alghamdi; Ikhlas Abdelaziz; Lubna Bushara; Somayah Alghamdi; Abdullah Aljehani; Ali Zailae; Jamaan S. Alghamdi; Iyad Feteih; Mustafa Z. Mahmoud; Abdulrahman Tajaldeen
ABSTRACT Radiological examinations have played a crucial role in the identification and management of COVID-19 patients. Therefore, knowledge and awareness of infection control among healthcare workers in radiology departments are important to prevent disease transmission. This study aimed to assess the knowledge and practice of infection control for COVID-19 among healthcare workers in radiology departments
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Impact of gamma-irradiated silver nanoparticles biosynthesized from Pseudomonas aeruginosa on growth, lipid, and carbohydrates of Chlorella vulgaris and Dictyochloropsis splendida. J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-12-13 Sanaa Mahmoud Metwally Shanab; Abir M. Partila; Hamdy Elsayed Ahmed Ali; Mohd Azmuddin Abdullah
ABSTRACT In this study, the biosynthesis of extracellular silver nanoparticles (AgNPs) was obtained using Pseudomonas aeruginosasupernatant integrated with gamma radiation. The biosynthesis was confirmed by UV-Vis Spectrophotometer. The Atomic Force Microscopy (AFM) recorded the spherical nanoparticle sizes of 10 nm, while the Dynamic Light Scattering (DLS) recorded the size range of 6.7 to 12.1 nm
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Radiological risk assessment and spatial distribution of naturally occurring radionuclides within riverbed sediments near uranium deposits: Tulgheș-Grințieș, Eastern Carpathians (Romania) J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-12-12 Marius Cristian Sandu; Gabriel O. Iancu; Ciprian Chelariu; Adriana Ion; Sorin I. Balaban; Andreea A. Scarlat
ABSTRACT The concentration and spatial distribution of three naturally occurring radionuclides, 238U, 232Th and 40K, has been determined in stream sediments from six left side tributaries of Bistricioara river (Bistriței Mountains, Eastern Carpathians, Romania). Historically, several mining works were undertaken in the area, with a view of exploring its’ potential regarding mineral resources. The aim
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Calsyntenin 1 mRNA expression sensitivity to ionizing radiation in human hepatocytes and carcinoma cells and blood cells of BALB/c mice J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-12-11 Eon-Seok Lee; Won-Tae Kim; Ga-Young Park; Manwoo Lee; Tae Gen Son
ABSTRACT Whether calsyntenin 1 (CLSTN1) and serine hydroxymethyltransferase 2 (SHMT2) are sensitive to low-dose ionizing radiation (LDIR) has not yet been defined. Therefore, here, we aimed to investigate changes in gene expression in hepatic cell lines and in blood cells and serum from irradiated mice. Levels of SHMT2 and CLSTN1 were decreased in cancer (HepG2) and normal (HH) hepatocytes exposed
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Evaluating the Impact of Connected Non Linear Loads on Power Quality- a Nuclear Reactor case study J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-12-09 Samira Reda Nassar; Ayman A. Eisa; A. A. Saleh; M.A. Farahat; Amal F. Abdel-Gawad
ABSTRACT Power quality monitoring and investigation are necessary to maintain perfect and safe operation of sensitive equipment especially for nuclear facilities. In this work, a case study about harmonic analysis of an electrical power system at a Nuclear Research Reactor (NRR) has been done to evaluate the current state from the PQ point of view. Firstly, a study is given separately for different
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Screening and selection of potential probiotic strains from the Mediterranean fruit fly (Ceratitis capitata) guts origin based on SIT application J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-12-07 H. Hamden; Meriem MSaad Guerfali; K. Charaabi; W. Djobbi; S. Fadhl; M. Mahjoubi; K. Mnasri; A. Najjari; M. Saidi; C. Chevrier; A. Cherif
ABSTRACT The Mediterranean fruit fly,Ceratitis capitata (Diptera: Tephritidae), is an important economic pest worldwide causing direct crop damage. One of the most successful control strategies for this pest is the application of the sterile insect technique. However, the deterioration of competitive mating performance against wild males was observed in Vienna8 Genetic Sexing Strain sterile males,
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Theoretical formula for the cosmic-ray muon attenuation coefficients of Pb, Cu, Zn, and Al J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-11-27 Rasha N. I. Altameemi; Nurul Shazana Abdul Hamid; Wan Mohd Aimran Wan Mohd Kamil; Saad M. Saleh Ahmed
ABSTRACT The attenuation coefficients of cosmic-ray muons through metal plates were theoretically determined. Three methods (A, B, and C) were proposed by the researchers using the experimental data of count rate which was obtained from the detection of cosmic-ray muons through metal plates of different thicknesses. Method A was applied to Pb, Cu, Zn, and Al, whereas Methods B and C were applied to
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Investigation of mass attenuation coefficients, effective atomic numbers, and effective electron density for some molecules: study on chemotherapy drugs J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-11-09 Taylan Tuğrul
ABSTRACT Several authors have mentioned calculations of the effective atomic numbers ( Z e f f ) and effective electron density ( N e f f ) on amino acids, carbohydrates, and nucleotides. Recently, numerous studies performed for determination of the mass attenuation coefficient ( μ / ρ ), Z e f f and N e f f on some biological compounds. However, theoretical studies for Z e f f , N e f f , and μ /
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Development of an electrostatic precipitator prototype to reduce exposure to radon progeny in poorly ventilated workplaces J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-11-05 V. Colenghi; L. Lepore; C. Di Carlo; F. Bochicchio; R. Remetti
ABSTRACT Electrostatic precipitation is a well-known technology to reduce public exposure to radon daughters. A custom electrostatic precipitator (ESP) prototype has been designed and built to study the effectiveness of such a removal technique in specific workplaces having low-to-zero air exchange rates with external environments. An appropriate mathematical model has been set up in order to simulate
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Monte Carlo simulation of X-ray room shielding in diagnostic radiology using PHITS code J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-10-13 M Z Abdul Aziz; S Yani; F Haryanto; N. Kamarullah Ya Ali; S. M. Tajudin; H. Iwase; M. Musarudin
ABSTRACT This research was conducted to evaluate scatter distribution at an X-ray room for diagnostic radiography using the Particle and Heavy Ion Transport code System (PHITS). The X-ray room was simulated using PHITS code based on the imaging room distance and length, as well as the control console room. The exact dimensions of the rooms were used as a geometry code in PHITS to simulate a point source
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DNA damage assessment of human breast and lung carcinoma cells irradiated with protons and carbon ions J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-10-12 Aleksandra M. Ristic-Fira; Otilija D. Keta; Vladana D. Petković; Francesco P. Cammarata; Giada Petringa; Pablo G.A. Cirrone; Giacomo Cuttone; Sebastien Incerti; Ivan M. Petrović
ABSTRACT Differences in biological response of breast and lung cancer cells to 62 MeV/u therapeutic protons and carbon ions are investigated on MCF-7 and HTB177 cells. Hydroxyl radical scavenger, dimethyl sulfoxide (DMSO) is applied to reduce indirect effects of irradiation, while serum deprivation provided uniformity of cell population. Survival, immunocytochemical, and cell-cycle analysis, changes
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Performance analysis of wireless sensor networks for nuclear medicine applications J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-10-07 Rania I. Gomaa
ABSTRACT Recently, Wireless Sensor Network (WSN) deployments for on-line monitoring of the nuclear practices have been addressed as incremental and experimental networks. The paper examines the performance of IEEE802.15.4/Zigbee based WSN for nuclear medicine practice using OPNET Modeler simulation tool. We introduce a reliable integrated remote sensing solution based on Zigbee technology for nuclear
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A Monte Carlo study on the effect of nanoparticle shapes on dose enhancement and distribution using 197Au and 195Pt J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-10-07 Fouad Abolaban; Eslam Taha
ABSTRACT This study investigates the effects of nanoparticles entity shapes inside tumor mass on dose distribution and dose enhancement. Gold ( 197 A u ) and Platinum ( 195 P t ) nanoparticles of four different shapes were used in this study. Each one has different air cavity inside, which in turns affect the scattering probability. However, all of them are spheres and have the same diameter
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Morphological characteristics and SRAP analysis of bermudagrass mutants generated by 60Co-γ radiation J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-10-07 Xiaoxiao Zhang; Jianjian Li; Wang Kai; Wang Rui; Li Ling; Dandan Li; Jianxiu Liu; Hailin Guo
ABSTRACT Yangjiang bermudagrass is an excellent variety with high turf quality and good stress tolerance; however, the inflorescence density of Yangjiang is too high, which leads to management problems. To lower the inflorescence density of Yangjiang bermudagrass, Yangjiang bermudagrass mutants were generated using gamma-ray irradiation. Forty-two mutants were generated, and identification was performed
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Representation and illustration of the initial parameters in GATE 8.1 monte carlo simulation of an Elekta Versa-HD linear accelerator J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-09-30 Fouad A. Abolaban; Eslam M. Taha
ABSTRACT The purpose of this study is to validate GATE 8.1 Radiotherapy Monte Carlo (MC) simulation of a 6 MV Elekta Versa-HD linear accelerator at King Abdulaziz University Hospital (KAUH). The simulation data using GATE 8.1 was benchmarked against measured data at KAUH. The simulation comprises treatment head, Multi-Leaf Collimators (MLCs), and homogeneous water phantom, whereas the measured data
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Improving the nutritive value of mulberry leaves, Morus spp. (Rosales: Moraceae) for silkworm larvae, Bombyx mor i (Lepidoptera: Bombycidae) using gamma irradiation J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-09-29 Pipatpong Chundang; Karun Thongprajukaew; Uthaiwan Kovitvadhi; Banthari Chotimanothum; Attawit Kovitvadhi; Pannee Pakkong
ABSTRACT The nutritive value and in vitro digestibility using the digestive enzyme extracts from different stages of silkworm larvae (Bombyx mori) were evaluated in different leaf positions (1, 2, 3, 4, or 5) of mulberry leaves (Morus spp.) with or without gamma irradiation treatment (native vs. irradiated). At least one of studied factors and their interaction had effects on the overall proximate
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Radon activity concentration measurements in water sources from Perak state Malaysia J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-09-21 Habila Nuhu; Suhairul Hashim; Mohamad Syazwan Mohd Sanusi; Muneer Aziz Saleh
Radon activity concentration in water samples from Perak state Malaysia and their possible health risk was assessed. The Samples were from lakes, hot springs, and rivers. The RAD7 Detector was used for in-situ measurement of radon concentration. The radon activity concentration ranged from 0.04 ± 0.08 — 3.98 ± 0.39 Bq l – 1 , with mean of 0.69 Bq l – 1 and standard deviation of 0.92 Bq l – 1. The activity
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Physicochemical features and structural analysis of xanthine oxidase as a potential therapeutic target to prevent gout J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-09-17 Muhammad Zohaib Nawaz; Qurat-ul Ain; Sara Zahid; Tooba Zulfiqar; Syed Awais Attique; Muhammad Bilal; Huda Ahmed Alghamdi; Wei Yan; Hafiz M. N. Iqbal
The high uric acid level in blood can cause gouty arthritis. In the uric acid cycle, purines are converted to uric acid and the process is controlled through series of enzymes, of which, xanthine oxidase (XO) is a key enzyme responsible for the oxidation of xanthine to uric acid. XO has been used as a potential therapeutic target to control uric acid deposition, ultimately preventing gout. Various
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Development of theoretical-computational model for radiation shielding J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-09-11 Salah Ud-Din Khan; Shahab Ud-Din Khan; Zeyad Almutairi; Sajjad Haider; Syed Mansoor Ali
Development of materials for radiation shielding application, which are lightweight, flexible, and robust increases in demand for nuclear radiation facilities including industrial or medical applications. In this paper, three metals (lead, gadolinium, bismuth) doped polymeric compounds (poly-acrylonitrile, polyethylene, and kevlar) were simulated by using theoretical and computational model. It was
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Impact of UV-C radiation on morphology of the antenna and antennal sensilla in Tribolium castaneum (Coleoptera: Tenebrionidae) J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-09-04 Jatuporn Tungjitwitayakul; Thippawan Yasanga; Nujira Tatun
The present study reveals the effects of ultraviolet-C on the morphology of the antenna and antennal sensilla of Tribolium castaneum. Pupae were irradiated with UV-C at a distance of 35 cm for 1, 2, 4, 8, 16, 32, or 64 min. The morphometric traits of the antenna and antennal sensilla were determined using light and scanning electron microscopy. UV-C caused abnormalities to the adults’ antennae that
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Quantifying intra-fractional prostate motion trajectory for establishing a new gating strategy: a preliminary study J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-08-24 Yan Gao; Bo Zhao; Xianshu Gao; Xin Qi; Siwei Liu; Yue Li; Chenghao Jia
Background Existing gated delivery methods adopting predefined intervention thresholds, and better delivery accuracy comes at the expense of lower therapeutic efficiency. So we present a new gating strategy based on trajectory quantification and pattern discrimination.Material and methods: 1265 real-time ultrasound monitoring trajectories of 61 prostate cancer patients were retrospectively analyzed
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Isolation and characterization of six gamma-irradiated bacteriophages specific for MRSA and VRSA isolated from skin infections J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-08-13 Eman Rashad Ahmed Mahmoud; Hala Ahmed Hussein Ahmed; Amal Saeid Mohamad Abo-senna; Omnia Karem M. Riad; Maha Mohamad Abd Al – Rahman Abo- Shadi
ABSTRACT Although skin infections are usually uncomplicated, it may indicate systemic disease or lead to life-threatening systemic infections. Staphylococcus aureus is the most common cause of skin infections. Treatment is complicated by continuous emergence of resistant S. aureus especially methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant S. aureus (VRSA). Therefore, searching
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Investigation of awareness level concerning radiation safety among healthcare professionals who work in a radiation environment J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-08-06 Aysu Zekioğlu; Şule Parlar
ABSTRACT Radiation safety has become more important issue due to increased use of ionizing radiation in diagnosis and treatment. The aim of this study is to investigate the awareness and knowledge level concerning radiation safety among healthcare professionals who work in a radiation environment. The study population consisted of healthcare professionals who work in a radiation environment at a state
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Automated delineation of nasopharynx gross tumor volume for nasopharyngeal carcinoma by plain CT combining contrast-enhanced CT using deep learning J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-08-04 Xuetao Wang; Geng Yang; Yiwen Zhang; Lin Zhu; Xiaoguang Xue; Bailin Zhang; Chunya Cai; Huaizhi Jin; Jianxiao Zheng; Jian Wu; Wei Yang; Zhenhui Dai
ABSTRACT This study aimed to develop an automated delineation method of nasopharynx gross tumor volume (GTVnx) for nasopharyngeal carcinoma (NPC) in computed tomography (CT) image for radiotherapy applications. Inspired by ResNet and SENet’s strong ability to extract image features, we proposed a modified version of the 3D U-Net model with Res-blocks and SE-block for delineation of GTVnx. Besides,
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A comparative study on astaxanthin recovery from shrimp wastes using lactic fermentation and green solvents:an applied model on minced Tilapia J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-08-04 Heba Abd Alla El-Bialy; Hanan Hassan Abdel Abd El-Khalek
ABSTRACT Astaxanthin is a carotenoid pigment that is increasingly used as an antioxidant supplement in healthy regimes. Shrimp processing wastes causing diverse environmental problems are considered the cheapest raw materials for recovering astaxanthin. The present study aims to recover astaxanthin using two green technologies; lactic fermentation and edible oil extraction and compare the efficiency
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Characterization of uranium in soil samples from a prospective uranium mining in Serule, Botswana for nuclear forensic application J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-07-29 Liteboho Ntsohi; Iyabo Usman; Risimati Mavunda; Oscar Kureba
ABSTRACT This study attempts a nuclear forensic characterization of uranium in soil samples from a prospective Serule mine in Botswana. The analysis involves the determination of forensic signatures found in uranium-bearing materials from the mine. These signatures include 232Th activity concentration, isotopic and activity ratios of 232Th/238U and 235U/238U, impurity concentration, rare earth elements
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Soil radon detection using active scintillation cell J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-07-29 Ayman M. Abdalla; A. M. Ismail; A. A. Al Madiy
ABSTRACT The paper herein is intended to present the registration efficiency of 300A alpha-scintillation active cell and its application in the field of soil radon detection. In this work, a radon chamber based on a natural radon source has been constructed. This chamber allows calibration of the active scintillation cell under flow-through condition. Radon source has been designed, constructed, and
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Circulating CXCL16 in type 2 diabetes mellitus Egyptian patients J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-07-27 Mohamed S. Tawfik; Phebe L. Abdel-Messeih; Neveen M. Nosseir; Heba H. Mansour
ABSTRACT Background Type 2 diabetes mellitus (T2DM) is an international health concern. The C-X-C chemokine ligand 16 (CXCL16) functions as a scavenging cell surface receptor. Vitamin D3 has vital effects on inflammation and insulin homeostasis. Purpose To investigate the significance of serum CXCL 16 and vitamin D3 in T2DM patients to understand disease pathophysiology. Materials and Methods The current
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Effect of UV-A on vincristine biosynthesis and related peroxidase isozyme changes in Catharanthus roseus J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-07-24 I. M. Salama; N. E. Eliwa; M. H. Mohamed
ABSTRACT This study revealed effect of UV-A on the vincristine accumulation and peroxidase isozymes changes in the Catharanthus roseus plantlets and relationship between them. Effect of the UV-A on the C. roseus plantlets survivor was largely because the plantlets (two weeks age) died after irradiation by UV-A more than 30 minutes. The electrophoretic patterns of peroxidase isozymes extracted from
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Evaluation of the effect of gamma-irradiated Basil (Ocimum basilicum L.) on Liver Toxicity induced by Arsenic in Rats J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-07-12 Nadia N. Osman; Aishah H. Ghazwani; Khadijah S. Balamash
ABSTRACT Arsenic is a toxic substance that causes tissue damage. It is well-known that exposure to this substance induces oxidative stress and causes liver injury. The present study has been conducted to evaluate the protective role of raw or irradiated basil against arsenic-induced liver damage. Basil leaves were irradiated at a dose of 10 kGy by cobalt-60 gamma rays. Forty-eight female albino rats
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The potential protective role of gamma-irradiated vaccine versus Punica granatum treatment against murine trichinellosis J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-07-12 Eman N. Hafez; Walaa A. E. S. El Kholy; Mona M. Amin
ABSTRACT Trichinellosis is a food-borne disease caused by the ingestion of meat infected with Trichinella spiralis encysted larvae. To interrupt the circle between human and animals, proper immunization and treatment of animals are needed. This study aimed to compare the impact of vaccination with gamma radiation-attenuated larvae with anti-helminthes activity of Punica granatum on its control. Sixty
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Effect of Green Silver Nanoparticles Embedded in Irradiated Sodium Alginate /Poly Acrylamide on Removal of Dye Wastes J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-07-06 Abir M Partila; Doaa E El-Hadedy
ABSTRACT The toxins generated by waste dyes from several industrial sectors in water bodies are hard to evacuate by ordinary water treatment procedures. This study discusses the effect of silver nanoparticles (AgNPs) biosynthesized by Pseudomonas aeruginosa on the degradation of some hazardous dyes such as Bromothymol blue and Fantacell dye. The catalytic properties of the Sodium Alginate/Poly Acrylamide
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Role of Spirulina on gamma-irradiated rats using Fourier transform infrared attenuated total reflectance and Electron spin resonance for brain J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-05-25 Aisha A. Saad-El-Din; Aliaa Mazhar; Wafaa Khalil
ABSTRACT The role of spirulina against brain tissue injury induced by 4 Gy whole body γ-irradiation was studied. Thirty male albino whistler rats were divided into five groups: control (C), spirulina (Sp) 400 mg/kg orally administrated for 2 weeks, irradiated (4 Gy), (Sp+4 Gy), and (4 Gy+Sp). About 24 h posttreatment, fresh brain white matter was extracted from the animal and directly measured by Fourier
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GPER-1 in chronic hepatitis B J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-05-18 Bahar Kandemir; Selma Ates; Ergül Belge Kurutas; Yasemin Durduran; Ibrahim Erayman; Mehmet Bitirgen
ABSTRACT Estrogen has a significant role in regulating cell proliferation, growth, migration, aging, and many disease states. Estrogen shows its effects through estrogen receptors alpha, beta, and G protein-coupled estrogen receptor 1 (GPER1). The aim of this study is to evaluate serum GPER1 levels and its relationship with fibrosis score in chronic hepatitis B patients. The cases were selected from
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Investigating Egyptian archeological bone diagenesis using ATR-FTIR microspectroscopy J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-05-13 M. A. Kasem; I. Yousef; Z. A. Alrowaili; M. Zedan; A. El-Hussein
ABSTRACT Bones are mainly composite materials of equivalent volume fractions of mineral (apatite) and organic (collagen) parts. Their infrared spectroscopic characteristics mirror their composition. Bone diagenesis is the post-depositional changes of calcified tissues by chemical degradation. It is a complicated process and affected by numerous external and individual factors. Diagenetic trajectories
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Knowledge and awareness of ionizing radiation risks among Saudi Obstetricians J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-05-13 Hussain Almohiy
ABSTRACT This study was conducted to assess Saudi obstetricians’ knowledge and awareness of the risks of ionizing radiation. Following a cross-sectional study design, 130 obstetricians in Saudi Arabia were included. A study questionnaire was designed and developed by the researcher. Most participants (69.2%) did not undergo training on radiation risk, while their activities related to radiation risk
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Optimal feed-water level control for steam generator in nuclear power plant based on meta-heuristic optimization J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-05-13 Nehad Ali Demerdash; Mohamed A. El-Hameed; Ezzat A. Eisawy; Mahdy M. El-Arini
ABSTRACT Optimal control systems are crucial requirement that emphasize the safe operation of pressurized water reactor (PWR) nuclear power plants. The present study focuses on steam generator (SG) feedwater control as being one of the main PWR equipment that is affected directly by grid load transients. Therefore, recent nature inspired meta-heuristic optimization algorithms are applied on SG level
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A modified semi-empirical formula to calculate the maximum positron range affected by different magnetic field strengths for PET/MRI scanner J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-05-13 Essam M. Banoqitah; Abdelfattah Y. Soliman; Eslam M. Taha; Abdelhamid K. Mazher
ABSTRACT A modified semi-empirical formula that relates the maximum range of the positron to the strength of different magnetic field strengths is developed via Monte Carlo simulation. The formula is derived as an extension to the existing formula of no magnetic field. COMSOL Multiphysics is used to simulate the different physics, including electromagnetic physics and charged particle tracking physics
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Dosimetric Comparison between Monaco TPS and EGSnrc Monte Carlo simulation on Titanium Rod in 12bit and 16bit Image Format J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-05-06 J. Jayamani; N. D. Osman; A. A. Tajuddin; N. Mohd Noor; M. Z. Abdul Aziz
ABSTRACT This study purpose is to investigate the effects of using different bit depth DICOM images for the 6 MV photon beam on a titanium rod. An EGSnrc Monte Carlo simulation on the Elekta Synergy LINAC executed as a dosimetry comparison tool for the TPS. CT scanners with 12-bit, 12-bit extended (Siemens Somatom Definition AS) and 16-bit depth (Toshiba Aquilion) parameters were applied to scan a
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Region-specific three-dimensional dose distribution prediction: a feasibility study on prostate VMAT cases J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-04-28 M. Qi; Y. Li; A. Wu; Q. Jia; F. Guo; X. Lu; F. Kong; Y. Mai; L. Zhou; T. Song
ABSTRACT Purpose: To investigate region-specific models for organ’s three-dimensional dose distribution prediction with neural network. Methods: The dose distribution from different bladder regions for 52 prostate volumetric modulated arc therapy cases were first analyzed, the two region-specific models were then built to predict the bladder dose distribution, the initial model and the refined model
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Study of cardiomegaly using chest x-ray J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-04-26 Salem Saeed Alghamdi; Ikhlas Abdelaziz; Mesbah Albadri; Samaher Alyanbaawi; Rowa Aljondi; Abdulrahman Tajaldeen
ABSTRACT A chest x-ray is the most commonly used modality for detecting cardiomegaly, and the cardiothoracic ratio (CTR) has been used as an important tool for estimating the heart size. The main aims of the present study were to determine the distribution of cardiomegaly in normal adults in Saudi Arabia and to evaluate the correlation between the presence of cardiomegaly and age. Data was collected
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Activity concentrations of 226Ra, 232Th, 40K, and 238U in detergent powders and their potential radiation hazards J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-04-21 Fatimh Alshahri
ABSTRACT Phosphate ore, which may be associated with natural radionuclides, has been used for a long time as a builder in detergents. The daily use and discharge of detergents in wastewater may lead to the accumulation of radionuclides in the environment. Therefore, the current study was carried out to determine the radioactivity levels of 226Ra, 232Th, 40K, and 238U in 15 samples of detergent powders
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A possible ɤ- radiation Dosimeter based on the radiation induced changes in Electrical conductivity of water in the presence of silica gel J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-04-17 Kh. A. Sife-Eldeen
ABSTRACT ɤ-Irradiation induces electrical conductivity (RIC) in water. But, the RIC values of water can be more than twofold higher in the presence of SG with particle size in the range >0.16–0.2 mm, relative to that of water only. Can this phenomenon be used in ɤ- radiation dosimetry? In order to answer this question, the effects of absorbed dose, absorbed dose rate, and post-irradiation storage time
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Diagnostic strategy for occult hepatitis B virus infection and its clinical implications among patients at Upper Egypt J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-04-17 A. M. El-Adly; A. K. Meshaal; M. A. Mekky; H. F. Hetta; A. A. Wardany; A. A. El-Shanawany
ABSTRACT Hepatitis B virus (HBV) infection is an important health problem and the major cause of chronic hepatitis, cirrhosis, and hepatocellular carcinoma (HCC) especially in Upper Egypt. The aim of this study was to estimate the prevalence of HBV among Assiut governorate patients. Our study examined 1085 patients for HBsAg at Assiut governorate, Egypt. Out of the 1085 population tested for HBsAg
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ɤ-Radiation-induced N-phenylation of aniline using chlorobenzene: a novel route for diphenylamine formation J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-04-17 Kh. A. Sife-Eldeen
ABSTRACT A novel route of diphenylamine (DPA) formation via ɤ-radiation-induced N-phenylation of aniline by chlorobenzene in oxygen-free condition is reported. A capillary gas chromatography-mass spectrometry method was developed for DPA identification and quantification. The effects of the reactants molar ratio, absorbed radiation dose, and dose rate on the yield of DPA were investigated in ɤ-irradiated
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Synthesis and characterization of ciprofloxacin loaded silver nanoparticles and investigation of their antibacterial effect J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-04-10 Eman Mohsen; Ola M. El-Borady; Mona B. Mohamed; Irene S. Fahim
ABSTRACT Ciprofloxacin (CIP) antibiotic was loaded on silver nanoparticles (AgNPs), which were prepared by three different methods to enhance their antibacterial activity against Gram-negative (Escherichia coli) bacteria and Gram-positive (Staphylococcus aureus) bacteria. AgNPs were prepared by using sodium borohydride (NaBH4), lactose and sodium citrate followed by one-year aging, in order to produce
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Review of low-level background radioactivity studies conducted from 2000 to date in people Republic of China J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-04-10 Ihsan Ullah Khan; Weimin Sun; Elfed Lewis
ABSTRACT About 87% of the total dose received by the general public is due to naturally existing radioactive nuclides. Long-term exposure to the relatively long half-life radioactive elements (including Uranium, Thorium, and Potassium) and their decay products pose severe health threats to the population including lung cancer. The related available data has been collected from numerous studies conducted
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Laser-induced silicon nanocolumns by ablation technique J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-04-10 W. A. Ghaly; H. T. Mohsen
ABSTRACT High-purity silicon wafers were irradiated in ultrapure water environment by laser ablation (LA). Columnar structures were induced on the surface using multiple pulses from Nd:YAG laser. Nd:YAG pulsed laser irradiance with 1.3 × 109 W/cm2 operated at 266 nm wavelength, 6 ns pulse duration, and 10 mJ pulse energy with different repetition rates 10 Hz and 20 Hz. Shape, structure, and size distribution
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Robustness comparative study of dose–volume–histogram prediction models for knowledge-based radiotherapy treatment planning J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-04-09 Aiqian Wu; Yongbao Li; Mengke Qi; Qiyuan Jia; Futong Guo; Xingyu Lu; Linghong Zhou; Ting Song
ABSTRACT Purpose: To compare the robustness of three dose-volume-histogram (DVH) prediction models for knowledge-based treatment planning (KBP) for radiation therapy. Methods: Three models proposed by Zhu et al. (Zmodel), Lindsey et al. (Lmodel), and Satomi et al. (Smodel) were selected, and compared based on identified archived radiation therapy plan cohorts (including 50 prostate cancer (PC) and
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An issue regarding human nerve stimulation by short monophasic Vs. biphasic pulses of radiation J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-04-01 Francis X. Canning
ABSTRACT For short pulses of transmitted electric fields in the MHz range with a low duty cycle, average power limits of the safety standards may be easily met while peak field requirements come into play. Previous research has shown that for related contact currents monophasic pulses (positive sign only) are orders of magnitude more effective at human nerve excitation than biphasic pulses. Some previous
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Modification of bacterial cell membrane to accelerate decolorization of textile wastewater effluent using microbial fuel cells: role of gamma radiation J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-03-25 Nabila Selim; Heba Hamed Maghrawy; Reham Fathy; Marwa Gamal; Hussein Abd El Kareem; Kyle Bowman; Mark Brehney; Godfrey Kyazze; Tajalli Keshavarz; Ola Gomaa
ABSTRACT The aim of the present work was to increase bacterial adhesion on anode via inducing membrane modifications to enhance textile wastewater treatment in Microbial Fuel Cell (MFC). Real textile wastewater was used in mediator-less MFCs for bacterial enrichment. The enriched bacteria were pre-treated by exposure to 1 KGy gamma radiation and were tested in MFC setup. Bacterial cell membrane permeability
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Quantification of elemental composition of Granite Gneiss collected from Neelum Valley using calibration free laser-induced breakdown and energy-dispersive X-ray spectroscopy J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-03-25 Shahab Ahmed Abbasi; Muhammad Rafique; Altaf Ahmad Mir; Kimberlee J. Kearfott; Salah Ud-Din Khan; Shahab Ud-Din Khan; Taj Muhammad Khan; Javed Iqbal
ABSTRACT Calibration-free laser-induced breakdown spectroscopy (CF-LIBS) has been employed for elemental analysis of Granite Gneiss, rock sample, collected from Neelum Valley of Azad Jammu & Kashmir, Pakistan. The sample was irradiated with focused laser beam from Q-switched Neodymium Yttrium Aluminum Garnet laser, having 532 nm wavelength and pulse width of 5 ns, and the emission spectrum was recorded
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Narrow band ultraviolet B therapy deactivates Th1/Th17 pathway and activates Th2 cytokines secretion in Egyptian psoriatic arthritis patients J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-03-20 Alyaa Farid; Aya Tawfik; Basil Elsioufy; Gehan Safwat
ABSTRACT Psoriasis is a chronic autoimmune disorder that affects 3-4% of the world population. Keratinocytes and immune cells in patient’s skin secrets excess pro-inflammatory cytokines that in turn activates the differentiation of T helper cells (Th) into Th1 and Th17 and deactivates Th2 pathway. Several phototherapies have been used in treatment of moderate and severe psoriatic patients; among them
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Potassium nickel(II) hexacyanoferrate(III)-functionalized biochar for selective separation of radiocesium from liquid wastes J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-03-25 M. Pipíška; S. Ballová; V. Frišták; L. Ďuriška; M. Horník; Š. Demčák; M. Holub; G. Soja
ABSTRACT Biochar is a promising metal-immobilizing material, nevertheless the studies of its modification and application in the removal of radionuclides, especially 137Cs from contaminated liquids remain rare. This research demonstrated that horticultural waste derived biochar (GWB) produced by slow pyrolysis process could be a suitable Cs adsorbent and also useful support to impregnate the potassium
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DNA photocleavage, topoisomerase I inhibition, and cytotoxicities of two ruthenium complexes containing asymmetry ligand J. Radiat. Res. Appl. Sci. (IF 1.804) Pub Date : 2020-03-18 Xue-Wen Liu; Ning-Yi Liu; Yuan-Qing Deng; Shan Wang; Ting Liu; Yu-Cai Tang; Yuan-Dao Chen; Ji-Lin Lu
ABSTRACT In recent years, ruthenium (II) complexes have attracted attention due to high DNA topoisomerase I inhibitory activities and good anticancer activities. Herein, an asymmetric ligand 2-(5-(1, 10-phenanthroline))-1 H-4,5-diphenyl-imidazole (pdpi) and its ruthenium complexes were synthesized. DNA-binding mode of two complexes was determined as intercalation by using UV–vis spectra, emission spectra