Bio-synthesis of citric acid from single and co-culture-based fermentation technology using agro-wastes
In conclusion, a suitable addition of fermentative substrate to the SSF medium increased fungal growth, sugar utilization and citric acid production when used in lower concentrations. (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - October 31, 2015 Category: Physics Source Type: research

Multicenter study assessing ophthalmologist's knowledge towards radiation dose when prescribing CT scans for pediatric patients: A Saudi Arabian perspective
Conclusion Knowledge of Ophthalmologists towards the risk of radiation exposure in pediatric CT is poor and could imply a tendency of radiation misuse and under-utilization of alternative radiation-free methods. Structured education sessions and discussion of the radiation risk with patients are recommended. (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - October 28, 2015 Category: Physics Source Type: research

Characterization of silver nanoparticles synthesized using Urtica dioica Linn. leaves and their synergistic effects with antibiotics
Publication date: Available online 21 October 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Kumari Jyoti, Mamta Baunthiyal, Ajeet Singh In continuation of the efforts for synthesizing silver nanoparticles (AgNPs) by green chemistry route, here we report a facile bottom-up ‘green’ route for the synthesis of AgNPs using aqueous leaves extract of Urtica dioica (Linn.). The synthesized AgNPs were characterized by UV-vis spectroscopy, X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FTIR), Zeta-sizer and Zeta-potential, Scanning electron microscopy (SEM), Energy dispers...
Source: Journal of Radiation Research and Applied Sciences - October 23, 2015 Category: Physics Source Type: research

Semi empirical formula to calculate MSP of relativistic electrons in the range of 940 keV–1020 keV
Publication date: Available online 23 October 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): S. Ramesh Babu, N.M. Badiger A semi empirical formula has been obtained to calculate the Mass stopping power (MSP) of relativistic electrons in the energy range of 950 keV–1050 keV, for any material of atomic number or Zeff ranging from 10 to 82. The MSP of 942 keV and 1016 keV internal conversion electrons of Bi207 are obtained by allowing them to pass through the targets of atomic numbers 13, 29, 47, 50, 79 and 82. The energies of the incident and transmitted electrons are measured using a...
Source: Journal of Radiation Research and Applied Sciences - October 23, 2015 Category: Physics Source Type: research

Application of waste frying oil as an extractant for uranium from sulfate leach liquor
Publication date: Available online 23 October 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Enass Mohamed El-Sheikh The possibility of using the waste frying oil (WFO) as an extractant for uranium from its sulfate liquor has been studied. Several experiments were conducted to determine the relevant factors affecting both the extraction and stripping of the uranium from a synthetic solution. At the optimum conditions, it was found that the maximum uranium uptake would attain 54 mg/g at a solution pH of 3.5. Kinetic characteristics of the loading process have been found to satisfactorily fi...
Source: Journal of Radiation Research and Applied Sciences - October 23, 2015 Category: Physics Source Type: research

Radiation processing: An effective quality control tool for hygienization and extending shelf life of a herbal formulation, Amritamehari churnam
Publication date: Available online 9 October 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Suchandra Chatterjee, Vivekanand Kumar, Swati Khole, Bhaskar Sanyal, T.S. Murali, Prasad S. Variyar Amritamehari churnam (AC) is an antidiabetic polyherbal formulation constituting of four herbal medicinal plants namely Phyllanthus emblica, Salacia reticulata, Tinospora cordifolia and Curcuma longa. The feasibility of using gamma irradiation at doses between 2.5 and 10 kGy to reduce microbial load and enhance shelf life of this formulation was investigated. The irradiated and non-irradiate...
Source: Journal of Radiation Research and Applied Sciences - October 9, 2015 Category: Physics Source Type: research

Estimation of radionuclides concentration and average annual committed effective dose due to ingestion for some selected medicinal plants of South India
This study may also contribute data on local medicinal plants to formulate regulations related to radiological healthcare. (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - October 2, 2015 Category: Physics Source Type: research

Functional and clinical evaluation of renal injury in patients treated with adjuvant chemoradiotherapy for gastric cancer: Low dose and comorbidity considerations
Conclusion Functional renal impairment without any clinical signs or symptoms can be observed in low doses after radiotherapy. Careful treatment planning and a detailed evaluation of the functional renal capacity before treatment may help to reduce late renal toxicity. (Source: Journal of Radiation Research and Applied Sciences)
Source: Journal of Radiation Research and Applied Sciences - September 26, 2015 Category: Physics Source Type: research

Assessment of radiological hazard of quarry products from southwest Nigeria
Publication date: Available online 25 September 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): S.T. Gbenu, O.F. Oladejo, O. Alayande, S. Olukotun, M.K. Fasasi, F.A. Balogun The term “quarry products” comprises different natural rocks with different mineral contents, crushed into various sizes at quarries. The concentrations of the naturally occurring radionuclides 40K, 238U and 232Th in quarry products from southwest Nigeria have been measured using gamma ray spectrometry. The gamma absorbed dose rate (DR), radium equivalent activity (Raeq), annual effective dose (Ad), activit...
Source: Journal of Radiation Research and Applied Sciences - September 25, 2015 Category: Physics Source Type: research

Calculation of gamma-ray attenuation parameters for locally developed shielding material: Polyboron
Publication date: Available online 14 September 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Ripan Biswash, Hossain Sahadath, Abdus Sattar Mollah, Md. Fazlul Huq In the present study, the mass attenuation coefficient (μ m ) has been calculated analytically for a locally developed shielding material, polyboron, and compared with the values obtained from the WinXCom code, a Windows version of the XCOM database at the photon energy range 0.001 MeV–20 MeV. A good agreement has been observed between these two values. The linear attenuation coefficients (μ) and relaxation lengths (...
Source: Journal of Radiation Research and Applied Sciences - September 14, 2015 Category: Physics Source Type: research

A study of the natural radioactivity and radon exhalation rate in some cements used in India and its radiological significance
Publication date: Available online 14 September 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Nisha Sharma, Jaspal Singh, S. Chinna Esakki, R.M. Tripathi The presence of natural radioactivity and radon exhalation from building materials contribute to the radiation dose received by human. So, it is essential to evaluate the activity levels of the primordial radionuclides (238U, 226Ra, 232Th and 40K) present in the building materials for the assessment of natural radiation dose. Cement is one of the major component of the building materials and is used on a large scale. In the present ...
Source: Journal of Radiation Research and Applied Sciences - September 14, 2015 Category: Physics Source Type: research

Radon exhalation rate for phosphate rocks samples using alpha track detectors
Publication date: Available online 14 September 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Hesham A. Yousef, Gehad M. Saleh, A.H. El-Farrash, A. Hamza Solid state nuclear track detectors are used in very broad fields of technical applications and successfully applied in different areas of environmental physics and geophysics. Radon concentration and surface exhalation rate for phosphate samples from El-Sebaeya and Abu-Tartur, Egypt, were measured using nuclear tracks detectors from types CR-39 and LR-115. The average values of radon concentration are 12711.03 and 10925.02 Bqm−3...
Source: Journal of Radiation Research and Applied Sciences - September 14, 2015 Category: Physics Source Type: research

Small angle scattering of 59.54 keV photons by elemental samples in the atomic number region 13 ≤ Z ≤ 82
Publication date: Available online 11 September 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): L. Vinaykumar, T.K. Umesh In the present paper, we report the angle integrated coherent scattering cross sections of some elements at low momentum transfer over four angular ranges for some elements in the atomic number range 13 ≤ Z ≤ 82 for 241Am (59.54 keV) gamma rays. The coherent scattering cross sections were derived from the experimentally measured total (Coherent + incoherent) scattering cross sections for the elements at the energy of interest by subtracting separately the ...
Source: Journal of Radiation Research and Applied Sciences - September 11, 2015 Category: Physics Source Type: research

226Ra and 210Po concentration in drinking water of Cauvery river basin south interior Karnataka State, India
Publication date: Available online 29 August 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): E. Kavitha, M.S. Chandrashekara, L. Paramesh Naturally occurring radionuclide 210Po which is an element of 238U decay series, contribute to the radiation that normally people are exposed. Drinking water samples collected from Cauvery river basin of south interior Karnataka State, India were analysed for the activity of 210Po using radiochemical analysis technique. The estimated concentration of 210Po in river water ranges from 0.86 to 4.49 mBq l−1, and its mean value is 2.67 ± 1.09 mBq l...
Source: Journal of Radiation Research and Applied Sciences - August 30, 2015 Category: Physics Source Type: research

Effect of gamma irradiation on cytokines released by platelets during storage
Publication date: Available online 28 August 2015 Source:Journal of Radiation Research and Applied Sciences Author(s): Rinku Shukla, Avani P. Shah, Priyanka V. Shah, Snehalata Gupte Most published gamma irradiation studies are on the cytokines secreted by leucocytes than platelet cytokines. If cytokines secretion is suppressed by irradiation then it will be an important application of irradiation. To know this we planned to measure cytokines like Regulated upon activation normal T cells expressed and secreted (RANTES), platelet factor 4 (PF-4), Transforming growth factor βeta1 (TGF-β) and βeta Thromboglobuli...
Source: Journal of Radiation Research and Applied Sciences - August 29, 2015 Category: Physics Source Type: research