In particular, estimates of daily reproduction numbers were provided for each subpopulation. The average duration of the SARS infectious period was estimated to be 9.3 days (+/- 0.3 days). The model was able to disentangle the impact of the two SSEs from background transmission rates. The effective contact rates, which were estimated on a daily basis, decreased with time, reaching zero inside hospitals. This observation suggests that public health measures and possible changes in individual AG-014699 mw behaviors effectively reduced transmission, especially in hospitals. The temporal patterns of reproduction numbers were similar for healthcare workers and the general population, indicating that
on average, an infectious healthcare worker did not infect more people AZD4547 supplier than any other infectious person. We provide a general
method to estimate time dependence of parameters in structured epidemic models, which enables investigation of the impact of control measures and behavioral changes in different settings.”
“The aim of this study was to investigate the equilibrium swelling and sorption properties of chemically crosslinked copolymeric hydrogels as biopotential sorbent consisting of acrylamide (AAm) and sodium methacrylate (SMA). Highly swollen AAm/SMA hydrogels were prepared by free-radical polymerization in aqueous solution of AAm with SMA as comonomer and three multifunctional crosslinkers such as 1,4-butanediol dimethacrylate, ethylene glycol dimethacrylate, and trimethylolpropane triacrylate. Swelling experiments were performed in aqueous urea solutions and safranin T at 25 degrees C, gravimetrically. The hydrogels showed enormous swelling in aqueous (urea/water or dye/water) medium and displayed swelling characteristics that were highly depended on the chemical composition of the hydrogels. Some parameters related swelling and diffusion behavior were investigated. The values of the equilibrium percentage swelling values of AAm/SMA hydrogels were between 585 and 19,900%. The numbers determining the type of diffusion (n) are between 0.54 and 0.99. Hence, the diffusion type was found to be non-Fickian in character for the hydrogels.
Chemically crosslinked AAm/SMA hydrogels were used in experiments on sorption of water-soluble monovalent BMN 673 datasheet cationic dye such as safranin T (Basic red 2, ST). For sorption of cationic dye, ST into the hydrogels was studied by batch sorption technique at 25 degrees C. The sorption capacity of AAm/SMA hydrogels was investigated. At the end of the experiments, 17.91-83.78 ST% adsorptions were determined. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 117: 1787-1797, 2010″
“Diamond-like nanocomposite (DLN) thin films, comprising the networks of a-C:H and a-Si:0 were deposited on pyrex glass or silicon substrate using gas precursors (e.g., hexamethyldisilane, hexamethyldisiloxane, hexamethyldisilazane, or their different combinations) mixed with argon gas, by plasma enhanced chemical vapor deposition technique.