Background: With all the recent advances in cancer treatments, many young cancer patients find themselves facing the prospect of losing their fertility after aggressive chemotherapy or radiotherapy. Cryopreservation of ovarian cortical tissue has emerged as a potential option to restore fertility in these young women. Materials and Methods: Because autotransplantation of cryopreserved ovarian c...

The assembly of the developmentally arrested primordial follicle and the subsequent transition of the primordial follicle to the primary follicle are critical processes in normal ovarian physiology that remain to be elucidated. Ovarian follicles do not proliferate and the primordial follicles present in the neonate represent the total number of gametes available to a female throughout her repro...

Bone scanning with radioactive isotopes has become a routine method for investigating disorders of bone. Departments of nuclear medicine throughout the country offer diagnostic facilities for a variety of problems which affect not only bone, but also the heart, kidney, brain, liver, pancreas and spleen as well as disorders of the blood. Indeed the use of radionuclides is now an important and es...

This study aimed to assess the radiological health implications humans due use of kaolin from mines in Nigeria. A calibrated RS-125 spectrometer was used in-situ monitor activity concentrations 40K, 238U, 232Th and dose-rate minefields Ilorin-south Ilorin-west, The monitoring measurements were done 90 locations selected at random areas. consolidated via laboratory analysis 48 samples Kaolin bri...

Evaluation of the safety of high-level radioactive waste repositories is a requisite included in radioactive waste management policy. Criteria for the safety of those facilities require protection of the population and the environment over a time scale appropriate to the characteristics of the radionuclides present in the disposed wastes. In order to demonstrate compliance with regulations, a q...

To evaluate the environmental contamination and contributory external exposure after the accident at the Fukushima Nuclear Power Plant (FNPP), the concentrations of artificial radionuclides in soil samples from each area were analysed by gamma spectrometry. Six artificial radionuclides ((131)I, (134)Cs, (137)Cs, (129m)Te, (95)Nb and (136)Cs) were detected in soil samples around FNPP. Calculated...

The transfer factors of radionuclides (Ra, U, Th, K and fallout radionuclides Cs) from soil to plant and grass collected from the north-west of West Bank environment – Palestine were measured. For soil to plant, the average transfer factor (TF) values were found to be 0.60, 0.50, 0.31, and 1.70 for 226 Ra, 238 U, 232 Th and 40 K respectively. For soil to grass the TF values were found to be 1.2...

Among the key environmental factors influencing the fate and transport of radionuclides in the environment is natural organic matter (NOM). While this has been known for decades, there still remains great uncertainty in predicting NOM-radionuclide interactions because of lack of understanding of radionuclide interactions with the specific organic moieties within NOM. Furthermore, radionuclide-N...

The Hydrological Dispersion Module (HDM) of the RODOS (real-time on-line decision support) system for nuclear emergency management in Europe has been is developed at IMMSP, Kiev, Ukraine; NRG, The Netherlands; FZK, Karlsruhe, Germany; SPA “TYPHOON”, Obninsk, Russia; IPEP, Minsk, Belorussia, and NCSR “Demokritos”, Athens, Greece. Initial testing and customisation work was performed by NPPRI, Slo...