Measurement of radioactivity concentration in soil samples around phosphate rock storage facility in Richards Bay, South Africa
Publication date: January 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 1Author(s): F.B. Masok, P.L. Masiteng, R.D. Mavunda, P.P. Maleka, H. WinklerAbstractMining, mineral processing and industrial activities have long been linked to increased levels of radioanuclides in soil in their vicinity. In this work, concentrations of naturally occurring radionuclides in soil samples collected around a rock phosphate storage facility in Richards Bay in South Africa were determined. A total of 90 soil samples were collected and analyzed for 238U and 232Th using neutron activation analysis and 226Ra...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Dosimetric evaluation of scattered and attenuated radiation due to dental restorations in head and neck radiotherapy
Publication date: January 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 1Author(s): Mona Azizi, Ali Asghar Mowlavi, Mahdi Ghorbani, Behnam Azadegan, Fatemeh AkbariAbstractIn radiotherapy of head and neck cancer, the presence of high density materials modifies photon dose distribution near these high density materials during treatment. The aim of this study is to calculate the backscatter and attenuation effects of a healthy tooth, Amalgam, Ni-Cr alloy and Ceramco on the normal tissues before and after these materials irradiated by 6 and 15 MV photon beams, respectively. All measurements ...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Evaluation of the synergistic effect of gamma irradiated Steinernema scapterisci and soil depth in controlling Bactrocera zonata Saunders (Diptera: Tephritidae)
Publication date: January 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 1Author(s): R.M. Sayed, N.F. Zahran, A.F. HamzaAbstractThe Peach fruit fly, Bactrocera zonata (Saunders) is a serious devastating pest in Egypt. This pest spends in soil from full grown larvae till adult emergence. Therefore, the present study was planned to evaluate the pathogenicity of Steinernema scapterisci against larvae and 1 day old pupae (at different soil depths), and to investigate the effect of gamma radiation on its virulence. The results revealed that adult emergence percentage decrease as the soil depth ...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

IFC - Editorial Board
Publication date: January 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 1Author(s): (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Risk assessment of radon in the South Dayi District of the Volta Region, Ghana
Publication date: January 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 1Author(s): Charles Y. Ansre, Michael K. Miyittah, Aba B. Andam, Daniel E. DodorAbstractRadon is a globally present and known radioactive gas with its ability to cause lung cancer as its major health implication. Ghana currently lacks national policies on radon gas and substantive radon vulnerability map largely due to lack of adequate baseline radon concentration data for the entire country. LR115 type II detectors were deployed in 30 sites/homes within the South-Dayi District. The detectors were retrieved after spec...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Evaluation of radon related parameters in environmental samples from Jazan city, Saudi Arabia
Publication date: January 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 1Author(s): M. Abo-Elmagd, Ahmed Saleh, G. AfifiAbstractEnvironmental samples like soil, building materials and decorative materials are the major source of indoor radon. The contribution of these environmental materials toward indoor radon level depend upon the radium content and radon exhalation rates and can be used as a primary index for radon levels in the dwellings. Sealed cup technique was used to determine the radon exhalation rates and the effective radium content in different environmental samples collected ...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Biodegradation of naphthalene by Bordetella avium isolated from petroleum refinery wastewater in Egypt and its pathway
Publication date: January 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 1Author(s): M.A.M. Abo-State, B.Y. Riad, A.A. Bakr, M.F. Abdel AzizAbstractWastewater and Sludge samples polluted with petroleum oil from Cairo Oil Refining Company (CORC), Mostorod, El-Qalyubiah, Cairo, Egypt. were used for isolation of indigenous bacterial communities. The isolation of bacterial strains followed four steps of adaptation and enrichment technique for selection of the most Naphthalene tolerant bacterial strains. Screening on four Naphthalene concentrations to determine the most potent strains having th...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Evolution of Robot-assisted ultrasound-guided breast biopsy systems
This study was designed to provide a literature review of a robotic US-guided breast biopsy system to delineate its efficacious impact on current medical practice. In addition, the strengths and limitations of this approach were also addressed. Articles published in the English language between 2000 and 2016 were appraised in this review. A wide range of systems that bind robotics with US imaging and guided breast biopsy were examined in this article. The fundamental safety and real-time imaging capabilities of US, together with the accuracy and maneuverability of robotic devices, is clearly an effective association with u...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Single floating cell irradiation technique with an X-ray microbeam
Publication date: January 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 1Author(s): Fuminobu Sato, Kikuo Shimizu, Isao MurataAbstractA single floating cell irradiation technique with X-ray microbeam has been developed for the microscopic research of radiation effects on floating cells in a liquid medium. This technique is a combination of X-ray microbeam and laser technologies. A preliminary experiment on the survival of budding cells of the yeast Saccharomyces cerevisiae (RAD52) was performed with the X-ray microbeam system. Micro-pits were fabricated on the bottom of a culture dish in a...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

The delayed appearance of haploid and homozygous diploid Saccharomyces cerevisiae yeast cells of wild-type and radiosensitive mutants surviving after exposure to gamma rays and alpha particles
Publication date: January 2018Source: Journal of Radiation Research and Applied Sciences, Volume 11, Issue 1Author(s): Ekaterina S. Evstratova, Vladislav G. PetinAbstractThe aim of this paper is experimental investigations of the delayed appearance of haploid and homozygous diploid Saccharomyces cerevisiae yeast cells of wild-type and radiosensitive mutants surviving after exposure to gamma rays and alpha particles. Delayed appearance of colonies exemplifying genetic instability are presented for cells surviving after radiation exposure to 60Co γ-rays and 239Pu α-particles. Relative biological effectiveness (RBE) of dens...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Depleted uranium residues, NORMs and 137Cs in the coastal zone soil of Musandam Peninsula, Hurmuz strait region, Sultanate of Oman
Publication date: Available online 8 January 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): Ibrahim H. SalehAbstractMusandam peninsula located at one of the most important marine strait overlooking the Arabian/Parisian Gulf. Environmentally, this area is characterized by its primitivistic status and vulnerable to any natural or manmade disturbances. This work presents the second phase of a comprehensive radiation measurement in Musandam Peninsula environment amid to investigating the presences of depleted uranium (DU) residues and assessing the current levels of 226Ra, 228Ra, 40K and 137Cs in surf...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Exploitation of Parthenium hysterophorous biomass as low-cost substrate for cellulase and xylanase production under solid-state fermentation using Talaromyces stipitatus MTCC 12687
Publication date: Available online 11 January 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): Amit Kumar Bharti, Amit Kumar, Alok Kumar, Dharm DuttAbstractTo make the enzyme production process appreciably inexpensive in respect of SSF, use of economical substrates is of great interest. Out of total eight employed solid substrate, Parthenium hysterophorous biomass exhibited its potential and displayed maximum endoglucanase (30 IU/gds), xylanase (582 IU/gds) and FPase (2.86 FPU/gds) activities. During optimization of cultural parameters, Talaromyces stipitatus MTCC 12687 produced maximum endoglucanas...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Radiological assessment of wastewater treatment processes based on the use of coal ashes as a filters
Publication date: Available online 1 February 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): L. Taoufiq, A. Laamyem, A. Boukhair, E. Essediqi, M. Monkade, A. ZrabdaAbstractCoal Fly Ash and Coal Bottom Ash are a solid waste generated from coal combustion. Recently, the management of these wastes has become an important subject for environmental researchers. Due to their physical and chemical characteristics, coal ashes were used in different fields like building material, agriculture and wastewater treatment. In the present investigation, a radiological assessment of Waste Water Treatment Plant (WW...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Spectrophotometric properties of azo dye metal complex and its possible use as radiation dosimeter
Publication date: Available online 2 February 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): S.M. Gafar, M.A. El-Kelany, S.R. El-ShawadfyAbstractThe current work describes the physico-chemical studies of two dosimetry systems. Aqueous solution of 1, 5 diphenyl carbazone (DPC) incorporating with chromium (III) to form a colored azo dye metal complex in two methods liquid and gel. Under the effect of γ-irradiation, the colored complex undergoes visual color change from red to colorless. The prepared complex can be used as a dosimeter and applicable in dose range 0.2–6; 0.02–1 kGy for both dos...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research

Pair production contribution effect on the calculation of gamma ray dose buildup factor for water and graphite in the energy range (4–10) MeV
Publication date: Available online 5 February 2018Source: Journal of Radiation Research and Applied SciencesAuthor(s): Laith A. Al-Ani, Hanan Mohammed JawadAbstractGamma ray buildup factor for two shielding materials, water (Zeff = 7.42) and graphite (Z = 6) for isotropic plane source normally incident within the energy range 4–10 MeV and up to 5 thickness mean free path has been studied. This research has been achieved by writing a simulation computer program in (Visual Basic language version G) and applied depending on Monte Carlo simulation method. The contribution of annihilation effect on the calculation o...
Source: Journal of Radiation Research and Applied Sciences - July 5, 2018 Category: Physics Source Type: research