“
“A magnetic loading technique was used to ramp load single-crystal [100] lithium fluoride specimens to peak stresses of 5-114 GPa. Wave analysis of in situ particle velocity profiles was used to estimate the compressive strength of LiF at peak stress. It was found that the strength increased with peak stress and showed two distinct regions of hardening; the first is believed to be governed by strain hardening and the second by pressure hardening. The quasielastic strain obtained from the initial
part of the unloading was shown to saturate at about 1.3% for peak stresses greater than approximately 30 GPa. Over the studied pressure range, the measured strength of LiF varied from its initial value of 0.08 to about 1.1 GPa at the Bucladesine order highest compressed state of 114 GPa. Comparison of the measured strength to results from two strength
models showed good agreement. It was demonstrated that the strength of LiF introduces systematic error of about 10% when used as an interferometer window for measurements of material strength in isentropic compression experiments. (C) 2009 American Institute of Physics. [doi:10.1063/1.3259387]“
“The aim of this work was to express recombinant nonstructural Nsp7 protein of European genotype of porcine reproductive and respiratory syndrome virus and to evaluate its diagnostic sensitivity and specificity in serological diagnostics of the disease.
The gene coding for Nsp7 protein this website was expressed in Escherichia coli cells and purified by IMAC. Serological reactivity of purified protein was assessed on a panel of swine sera in indirect ELISA test. Serum samples originated from PRRS positive farms, herds free of PRRS infection and PRRS free herds vaccinated with an inactivated vaccine. Nsp7 antigen
proved to be suitable for serological detection of PRRS specific antibodies, showing diagnostic sensitivity of 82.2% and specificity of 97.6% when compared with IDEXX ELISA test. The nonstructural protein proved to be suitable for use as an antigen for the differentiation of post-infection and post-vaccination antibodies in pigs vaccinated with the inactivated vaccine. But the low overall antibody response to N protein after this type of vaccination makes this concept rather theoretical. selleck chemicals llc (C) 2012 Elsevier Ltd. All rights reserved.”
“The aim of this study is to establish whether the presence of severe symptoms influences women’s choice of pessaries or surgery for uterovaginal prolapse.
This is a prospective study using the validated Sheffield Prolapse Symptoms Questionnaire.
Women choosing surgery (n = 251) were younger (58 versus 66 years), more bothered by dragging lower abdominal pain (33% versus 25%, P = 0.04), need for vaginal digitation (8% versus 3%, P = 0.02), and incomplete bowel emptying (27% versus 19%, P = 0.01) than women choosing pessaries (n = 429).