Stable iodine concentrations in this area were found to be very low (below 1 ppm) for most of the samples, Suggesting the environmental iodine levels in this area to be potentially low. The I-129/Cs-137 activity ratio in surface and
sub-surface soils was not so constant, i.e., in the range (7.3-20.2) x 10(-7). This might be due to the different behavior of deposition and/or migration of these nuclides in soil. These results Suggest the obtained data of I-129 to be useful for the reconstruction of the I-131 deposition in the contaminated areas.”
“Background: Drug users in clinical samples have elevated mortality compared with the general population, but little is known about mortality among selleck chemicals llc users of drugs within the general population. Aim: To determine whether self-reported use of illicit drugs and non-prescribed sedatives/hypnotics among young find more men in the general population is related to mortality.
Methods: A 35-year follow-up of 48 024 Swedish men, born 1949-1951 and conscripted in 1969/1970, among whom drug use was reported by 8767 subjects. Cross-record linkage was effected between individual data from the Swedish
conscription and other national registers. Deaths and causes of death/1000 person-years were calculated. Cox PH regression was used to estimate hazard ratios (HRs) for death with 95% confidence intervals (95% CIs). An HR was calculated for users of different dominant drugs at conscription compared with non-users by age interval, after adjusting
for confounders and hospitalisation with a drug-related BVD-523 concentration diagnosis.
Results: Drug users showed elevated mortality (HR 1.61, p < 0.05) compared with non-users. After adjusting for risk factors, users of stimulants (HR 4.41, p < 0.05), cannabis (HR 4.27, p < 0.05), opioids (HR 2.83, p > 0.05), hallucinogens (HR 3.88, p < 0.05) and unspecified drugs (HR 4.62, p < 0.05) at conscription with a drug-related diagnosis during follow-up showed an HR approaching the standard mortality ratios in clinical samples. Among other drug users (95.5%), only stimulant users showed statistically significantly increased mortality (HR 1.96, p < 0.05).
Conclusions: In a life-time perspective, drug use among young men in the general population was a marker of premature death, even a long time after exposure. (C) 2011 Elsevier Ireland Ltd. All rights reserved.”
“The semi-interpenetrating polymer network (semi-IPN) of thermoplastic polyurethane (TPU) and poly(N-isopropylacrylamide) (PNIPPAm) was synthesized and fabricated into microporous membranes with temperature-sensitive breathability. The chemical and physical structure of the semi-IPN was investigated by FTIR and thermo analysis including DSC and DMA.