The ecocentric strategy of radiation protection involves the expansion experimental bases radiation-induced effects in representatives biota. In this article we studied change relevant indicator (mortality) terrestrial mollusk F. fruticum M. after gamma-irradiation with doses from 10 to 300 Gy. is not yet included list reference species, but it meets requirements ICRP for organisms. aim work es...

Background In recent years, increasing attention has been paid to the effects of low-dose irradiation on human health. We examined whether low-dose irradiation affected the functions of mesenchymal stromal/stem cells (MSCs), which are tissue/organ-supportive stem cells, derived from bone marrow (BM). Methods Normal human BM-MSCs from five healthy individuals were used in this study. Culture-e...

In this study, a mechanism in which low-dose hyper-radiosensitivity (HRS) is permanently removed, induced by low-dose-rate (LDR) (0.2-0.3 Gy/h for 1 h) but not by high-dose-rate priming (0.3 Gy at 40 Gy/h) was investigated. One HRS-negative cell line (NHIK 3025) and two HRS-positive cell lines (T-47D, T98G) were used. The effects of different pretreatments on HRS were investigated using the col...

The link between high doses of radiation and thyroid cancer has been well established in various studies, as opposed to the effects of low doses. In this study, we investi-gated the effects of low-dose X-ray irradiation in a papillary thyroid carcinoma model with wild-type and mutated p53. A low dose of 62.5 mGy was enough to cause an upregulation of p16 and a decrease in the number of TPC-1 ce...

With the increase in the amount of time spent EVA that is necessary to complete the construction and subsequent maintenance of ISS, it will become increasingly important for ground support personnel to accurately characterize the radiation exposures incurred by EVA crewmembers. Since exposure measurements cannot be taken within the organs of interest, it is necessary to estimate these exposures...

⎯The electrical characteristics of solid state devices such as the bipolar junction transistor (BJT), metaloxide semiconductor field-effect transistor (MOSFET), and other active devices are altered by impinging photon radiation and temperature in the space environment. In this paper, the threshold voltage, the breakdown voltage, and the onresistance for two kinds of MOSFETs (200 V and 100 V of ...

Introduction: Hormesis and adaptive responses are two important biological effects of low-dose ionizing radiation (LDIR) in organism and mammalian cell lines. Notably, LDIR generates distinct biological effects in cancer cells from normal cells, e.g., it may affect the growth of cancer cells via the activation of certain cell signaling pathway, which does not exist in normal ...

Ionizing radiation effectively reduces the number of common microbial pathogens in fresh produce. However, the efficacy of the process for pathogens internalized into produce tissue is unknown. The objective of this study was to understand gamma irradiation of lettuce leaf structure exposed in a Cs irradiator using MCNP. The simulated Cs irradiator is a self-shielded device, and its geometry an...

purpose: to review on outcomes of phosphorus-32 ( 32 p) intracavitary irradiation for craniopharyngiomas. methods: a literature review of all full publications in english biomedical journals (1981-2014) was performed. the search strategy included a combination of key words “phosphorus-32”, “craniopharyngioma”, “intracystic treatment”, “brain”, “cyst”, “tumor”, “brachytherapy”, “intracavitary ir...

Absorbed dose in food product is determined and controlled by several parameters of the LINAC irradiation facility as well as those of the product. Standardization of the parameters characterizing the facility parameters, process load and the irradiation conditions collectively termed as ‘process parameters’ are important for successful dose delivery to the food products. In the present study, ...