Journal of Radiation Research and Applied Sciences This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

The determination of the inhalable fraction of 40K activity in marijuana (Cannabis sativa L.) buds by instrumental neutron activation analysis and the effective dose to the body
Publication date: Available online 8 June 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): Johann M.R. Antoine, Charles N. Grant Total potassium in marijuana (Cannabis sativa L.) buds was determined using instrumental neutron activation analysis. The mass fraction of 40K and its activity were derived using the natural isotopic ratios of potassium. The total potassium in the marijuana buds ranged from 0.84% to 3.15% with a mean mass fraction of 1.93%. The activity concentrations of 40K in the samples of marijuana ranged from 253 to 946 Bq kg−1 with a mean activity concentration of 581 Bq kg−...
Source: Journal of Radiation Research and Applied Sciences - June 9, 2017 Category: Physics Source Type: research

Assessment of natural radioactivity levels and associated dose rates in soil samples from historical city Panipat, India
Publication date: Available online 3 June 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): Amanjeet, Ajay Kumar, Suneel Kumar, Joga Singh, Parminder Singh, B.S. Bajwa The natural radioactivity levels have been determined by means of gamma ray spectroscopy in surface soil samples collected from the historical city Panipat and its surrounding areas. The activity concentrations are estimated for 238U (range from 14.82 ± 0.26 to 42.82 ± 0.84 Bq/kg), 232Th (from 12.94 ± 0.32 to 43.48 ± 0.96 Bq/kg) and 40K (from 238.05 ± 0.28 to 348.50 ± 0.95 Bq/kg). Radium equivalent activities...
Source: Journal of Radiation Research and Applied Sciences - June 4, 2017 Category: Physics Source Type: research

Modeling of indoor 222Rn distribution in ventilated room and resulting radiation doses measured in the respiratory tract
Publication date: Available online 2 June 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): R. Rabi, L. Oufni, M. Amrane Most of radiation hazard of indoor radon is largely due to the radon progenies, which are inhaled and deposited in the human respiratory tract. It is therefore important to understanding the distribution of radon and their progeny in indoor environment helps in calculating the inhalation doses due to them. This paper focuses on effects of exhalation from different sources (wall, floor and ceiling) and the ventilation profile on distribution of the concentrations of radon and ...
Source: Journal of Radiation Research and Applied Sciences - June 3, 2017 Category: Physics Source Type: research

Estimation of natural radioactivity in local and imported polished granite used as building materials in Saudi Arabia
Publication date: Available online 24 May 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): J.H. Al-Zahrani Measurements of natural radioactivity in local and imported samples of commercial granites used in Saudi Arabia were carried out by using gamma-ray spectroscopy with hyper-pure germanium detector. The activity concentrations measured of granite samples were determined for 226Ra(from 1.53 to 77.16 Bq kg−1), 232Th (from 0.51 to 89.82 Bq kg−1) and 40K (from 19.47 to 1632.37 Bq kg−1). The corresponding average activity concentrations for 226Ra,232Th and 40K were 28.82, 34.83 and 665.08 Bq...
Source: Journal of Radiation Research and Applied Sciences - May 24, 2017 Category: Physics Source Type: research

Determination for levels of uranium and thorium in water along Oum Er-Rabia river using alpha track detectors
Publication date: Available online 11 May 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): M. Amrane, L. Oufni Different river water samples have been collected and analyzed from different locations along Oum Er-Rbia River in Morocco. The uranium and thorium concentrations were investigated in the studied river and dam water samples. Mean activity concentrations of uranium and thorium in water were found to be between 12 and 37 Bq.m−3 and 2–10 Bq.m−3, respectively. The pH measured at all river water simples was slightly alkaline and ranged from 7.5 to 8.75. The electrical conductivity ran...
Source: Journal of Radiation Research and Applied Sciences - May 12, 2017 Category: Physics Source Type: research

The ameliorative effect of gallic acid on pancreas lesions induced by 2.45  GHz electromagnetic radiation (Wi-Fi) in young rats
Publication date: Available online 4 May 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): Senay Topsakal, Ozlem Ozmen, Ekrem Cicek, Selcuk Comlekci The aim of this study was to investigate the effects of electromagnetic radiation (EMR) on the pancreas tissue of young rats and the ameliorative effect of Gallic acid (GA). Six-week-old, 48 male rats were equally divided into four groups: Sham group, EMR group (2.45 GHz), EMR (2.45 GHz)+GA group (30 mg/kg/daily) orally and GA group (30 mg/kg/daily). After 30 days, serum and pancreatic tissue samples were harvested for biochemical, histopathol...
Source: Journal of Radiation Research and Applied Sciences - May 5, 2017 Category: Physics Source Type: research

Radiosensitizing activity of novel small molecule BRCA1 and DNA-PK inhibitors in lung and colon carcinoma
Publication date: Available online 27 April 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): Suraj Radhamani, Rejitha Suraj, Terri Meehan-Andrews, Jasim Al-Rawi, Christopher Bradley The DNA dependant protein kinase (DNA-PK) enzyme plays a major part in the repair of double stranded breaks induced by radiation and hence in the radio-resistance of tumour cells. Inhibitors of DNA-PK have been tested successfully in the past for their ability to sensitize cancer cells to the effects of radiation. Here we present two novel benzoxazines (LTU28 and LTU31) and analyse their ability to cause sensitiz...
Source: Journal of Radiation Research and Applied Sciences - April 28, 2017 Category: Physics Source Type: research

Numerical studies of radiofrequency of the electromagnetic radiation power absorption in paediatrics undergoing brain magnetic resonance imaging
This study modelled Pennes' classical bio-heat equation using Finite Difference Method (FDM) approach and with the help of MATLAB programming language, predicted three dimensional steady state temperature distributions in patients during magnetic resonance imaging. Sixty-four paediatric patients' referred for (head) brain magnetic resonance imaging scan at 37 Military Hospital and the Diagnostic Center Limited, Ghana, pre-scan and post-scan temperatures were measured at the right tympanic. The numerically steady state temperature distribution during magnetic resonance imaging shows that there is excessive temperature eleva...
Source: Journal of Radiation Research and Applied Sciences - April 26, 2017 Category: Physics Source Type: research

K β/Kα X-ray intensity ratios for some elements in the atomic number range 28≤Z≤39 at 16.896 keV
Publication date: Available online 20 April 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): R. Yılmaz The K shell intensity ratios ( K β / K α ) have been experimentally determined for some elements in the atomic number range 28 ≤ Z ≤ 39 by using secondary excitation method. K X-rays emitted by samples have been counted by a Si (Li) detector with 160 eV resolutions at 5.9 keV. The measured values were compared with the theoretical and experimental values. In general, the values obtained are in good agreement with the calculated values. (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - April 21, 2017 Category: Physics Source Type: research

Assessment of patients X-ray doses at three government hospitals in Duhok city lacking requirements of effective quality control
This study recommends a quick action toward implementing a quality control program and employing special staff of medical physicists in the evaluated hospitals. (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - April 20, 2017 Category: Physics Source Type: research

Sonographic measurement of renal size in normal high altitude populations
Publication date: Available online 17 April 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): Mustafa J. Musa, Ahmed Abukonna The purpose of this study was to investigate the normal sonographic measurement of the kidney in people reside at high altitude (2200 m). Length, width and thickness were measured in stratified random group of 125 volunteers with different age and sex. Their age ranges from 20 to 60 years old. Renal volumes were calculated and correlate with age, height, weight, body mass index and sex. Median renal lengths were 10.7 cm on the left side and 9.76 cm on the right side. T...
Source: Journal of Radiation Research and Applied Sciences - April 18, 2017 Category: Physics Source Type: research

Study the impact of gamma irradiation on the vitellogenin gene in Galleria mellonella females by using the comparative CT method
Publication date: Available online 17 April 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): Y.S. Zaghloul, R.M. Sayed, R.S. Abdallah The eggs deposited by oviparous organisms contain large amounts of vitellus, or yolk, which are utilized by the growing embryo. Vitellogenesis is the process of vitellus accumulation involves massive heterosynthetic synthesis of the protein vitellogenin (Vg) and its deposition in the oocyte. Vg levels are indicative for the efficiency of the oogenesis process. This work summarizes data on Vg levels in Galleria mellonella females exposed to various doses of gamma...
Source: Journal of Radiation Research and Applied Sciences - April 18, 2017 Category: Physics Source Type: research

Physico-chemical study of new ruthenium(III), Pd(II) and Co(II) complexes, DNA binding of Pd(II) complex and biological applications
Publication date: Available online 14 April 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): Samar A. Aly New series of ruthenium(III), Pd(II) and Co(II) complexes of thiosemicarbazone ligands were prepared and characterized. It has been inferred method of bonding and general geometry of the complexes through FTIR, UV–Vis, 1H NMR spectroscopic studies, molar conductivity, magnetic, thermal and elemental analysis. On the basis of the above studies, it has suggested that the tetrahedral geometry for Ru(III), Co(II) complexes and square planar geometry for Pd(II)complex. Fluorescence binding of p...
Source: Journal of Radiation Research and Applied Sciences - April 15, 2017 Category: Physics Source Type: research

Characterization of ethno-medicinal plant resources of karamar valley Swabi, Pakistan
The objective of the present study was to document the information of folk medicines, its identification, collection of samples, study of its chemical constituents and uses by the local people of District Swabi, Pakistan. (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - April 11, 2017 Category: Physics Source Type: research

Radon concentration assessment in water sources of public drinking of Covilh ã's county, Portugal
Publication date: Available online 17 March 2017 Source:Journal of Radiation Research and Applied Sciences Author(s): M. Inácio, S. Soares, P. Almeida Radon, the heaviest of the noble gases on the periodic table of elements, is a natural radioactive element that can be found on water, soils and rocks. The main goal of this work is to present an evaluation of radon concentration on samples of water, used for human consumption, collected on uranium-rich granitic rock areas. Once the geological features of the sampling region evidence the presence of this natural radionuclides, their slow dissolution steadily increases ...
Source: Journal of Radiation Research and Applied Sciences - March 16, 2017 Category: Physics Source Type: research