نتایج جستجو برای: chernobyl
تعداد نتایج: 6872 فیلتر نتایج به سال:
INTRODUCTION The male:female ratio at birth (male births divided by total live births - M/T) has been shown to increase in response to ionizing radiation due to gender-biased fetal loss, with excess female loss. M/T rose sharply in 1987 in central-eastern European countries following the Chernobyl accident in 1986. This study analyses M/T and births for the former Soviet Republics and for the c...
Cesium-137 derived from the explosion of the Chernobyl reactor in 1986 was preserved in anoxic sediments from a coastal environment in southern Rhode Island. Although the radioactive plume was detected in surface air samples at several locations in the United States, this is the first known record of a Chernobyl Cs peak in sediments from North America. The inventory of Chernobyl Cs that was pre...
(paragraph 362, given below as paragraph 1, and the following): 1. In the UNSCEAR 1993 Report [U4], it was mentioned that the results of Czeizel et al. [C23] had showed no increase in the prevalence of selected sentinel anomalies (predominantly autosomal dominant and X-linked diseases of childhood onset and Down's syndrome) in Hungary after the Chernobyl accident. Sperling et al. [S35], however...
A case-control study of hematological malignancies was conducted among Chernobyl liquidators (accident recovery workers) from Belarus, Russia and Baltic countries to assess the effect of low- to medium-dose protracted radiation exposures on the relative risk of these diseases. The study was nested within cohorts of liquidators who had worked around the Chernobyl plant in 1986-1987. A total of 1...
Molecular genetic aberrations and the related phenotypes were investigated in 191 papillary thyroid carcinomas (PTCs) from patients exposed at young age to radioiodine released from the Chernobyl reactor. A high prevalence of RET gene rearrangements (62.3%) with a significant predominance of ELE1/RET (PTC3) over H4/RET (PTC1) rearrangements was found in PTCs of the first post-Chernobyl decade. ...
Like children exposed to Chernobyl fallout, the workers who cleaned up after the accident, also known as liquidators, have exhibited an increased incidence of thyroid cancer. A high prevalence of ret/PTC3 rearrangement has been found in pediatric post-Chernobyl thyroid tumors, but this feature has not been investigated in liquidator thyroid tumors. In this study we analyzed the prevalence of re...
Annotation. The article identifies the main principles of functioning and development tourism in Chornobyl radiation ecological biosphere reserveaffected by technogenic disaster. paper provides a rationale fortourismdevelopmentto Chernobyl exclusion zone as anew direction international service market.It defines planning thebrand “Chornobyl reserve” (Chernobyl zone) providesproposals for itsprom...
Twenty-five years have passed since radioactive releases from the Chernobyl nuclear accident led to the exposure of millions of people in Europe. Studies of affected populations have provided important new data on the links between radiation and cancerdparticularly the risk of thyroid tumours from exposure to iodine isotopesdthat are important not only for a fuller scientific understanding of r...
BACKGROUND Following the Chernobyl nuclear power plant accident, large amounts of radionuclides were emitted and spread in the environment. Animals living in such contaminated areas are predicted to suffer fitness costs including reductions in the quality and quantity of gametes. METHODOLOGY/PRINCIPAL FINDINGS We studied whether aspermy and sperm quality were affected by radioactive contamina...
Possible effects of Chernobyl fallout on outcome of pregnancy in Finland were evaluated in a nationwide follow-up study. The outcomes were the rate of live births and stillbirths, pregnancy loss, and induced abortions by municipality. Exposure was assessed based on nationwide surveys of radiation dose rate from the Chernobyl fallout, from both external and internal exposures. Using these measur...
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