نتایج جستجو برای: internal exposure
تعداد نتایج: 534255 فیلتر نتایج به سال:
The aim of this study was to evaluate the impact of low internal exposure to 137Cs on L. sativum meristem cells and Tradescantia stamen hair cells. It also compared the impact of 137Cs internal and external irradiation of similar level on the plant seed germination and root growth. Compared to control, the tested internal (0.0007 mGy to 0.7 mGy) and external (0.04 mGy to 5.5 mGy) 137Cs ionising...
INTRODUCTION According to an evaluation made by the International Agency for Research on Cancer (IARC), 66 agents or exposures have been recognised as human carcinogens. About 66% of all cancer cases occur in people over 65 years of age. The implementation of effective measures for reducing the human disease burden depends primarily, although not entirely, on our knowledge of what causes the di...
We prepared Bi3O4Cl single-crystalline nanosheets with high {001} facet exposure percentages and demonstrated that their photoreactivity strongly depended on the magnitude of the internal electric field (IEF), which was correlated with the {001} facet exposure percentage. More {001} facet exposure could induce the generation of stronger IEF, which favored the photogenerated charge separation an...
Incidence of all types of lymphatic and hematopoietic cancers, including Hodgkin's lymphoma, non-Hodgkin's lymphoma, multiple myeloma, acute and chronic myeloid leukemia (AML and CML respectively), chronic lymphocytic leukemia (CLL) and other forms of leukemia have been studied in a cohort of 22,373 workers employed at the Mayak Production Association (PA) main facilities during 536,126 person-...
introduction: nickel (ni) is one of the toxic heavy metals that exposure to it has been connected with chronic respiratory complications such as asthma, chronic bronchitis, lung cancer and heart disease. in this research, original studies that investigated occupational or environmental exposure to nickel and measured nickel levels in human tissues were reviewed. materials and methods: in this ...
glutaraldehyde is commonly used in endoscopy labs to clean and disinfect instruments. it can cause direct irritation of the skin and the upper and lower airways. health care workers are also at risk for the development of irritant-induced or sensitizer-induced occupational asthma when exposed to this chemical. herein, we report on a patient who had frequent exposures to glutaraldehyde over one ...
Prenatal exposure to maternal smoking has been linked to cognitive and auditory processing deficits in offspring. Preclinical studies have demonstrated that exposure to nicotine disrupts neurodevelopment during gestation and adolescence, possibly by disrupting the trophic effects of acetylcholine. Given recent clinical and preclinical work suggesting that neurocircuits that support auditory pro...
We aimed to investigate the effect of chronic radiation exposure associated with the Fukushima Daiichi Nuclear Plant accident on the testis from 2 bulls. Estimated dose of internal exposure in one bull was 0.7-1.2 mGy (¹³⁴Cs) and 0.4-0.6 mGy (¹³⁷Cs) and external exposure was 2.0 mGy (¹³⁴Cs) and 0.8 mGy (¹³⁷Cs) (196 days). Internal dose in the other was 3.2-6.1 mGy (¹³⁴Cs) and 1.8-3.4 mGy (¹³⁷Cs...
OBJECTIVES Congenital anomalies have been inconsistently associated with maternal crude estimated exposure to drinking water trihalomethane (THM). We investigated the relationship between individual THM uptake during the first trimester of pregnancy and congenital anomalies. METHODS We estimated maternal THM uptake for 3074 live births using residential tap water concentrations, drinking wate...
To determine the current risk of internal radiation exposure after the Chernobyl accident, the (137)Cs body burden of the inhabitants of Bryansk Oblast, Russian Federation was evaluated, from 1998 to 2008. The study population is composed of 84 666 people who visited Bryansk No. 2 Hospital. A whole-body counter was used for measurement of (137)Cs body burden. (137)Cs concentration was significa...
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