The steady-state concentration of cell wall turnover products in the medium of Bacillus subtilis 168 growing exponentially on a casein hydrolysate-supplemented medium is equivalent to an overall rate of turnover of less than 10% per generation. After transfer of a steady-labeled culture to nonradioactive medium, the rate of release of labeled turnover products increased exponentially for up to ...

Calpastatin is an endogenous inhibitor of calpain (calcium-dependent cysteine protease). Calpastatin activityis highly related to the rate of protein turnover and rate of meat tenderization. In order to characterize thestructure of calpastatin in Iranian Afshari breed of sheep, intron 6 and partial exon 7 of the L domain wereamplified and sequenced. A fragment of approximately...

Background The main purpose of this study was to explore the status of occupational stress among hospital nurses in Isfahan, Iran. It also aimed to examine the relationship between nurses’ occupational stress and their intention to leave the hospital.   Methods The study employed a cross-sectional research design. A validated questionnaire was used to collect data from 296 nurses. Respondents w...

Mountainous river beds-generally consist of gravel particles that the precise description of such bed is not only important hydraulically, but also it has great environmental significance. The accurate estimation of bed roughness gives us valuable information to make reliable hydraulic models of flow in river with rigorous bed form. This study discuses about the accuracy of the Kinect device in...

Policy makers and businessmen demand real-time information and short-term forecasts about bed-nights occupied and the occupancy rate in hotel establishments (the latter being the percentage ratio of the number of bed nights occupied to the number of bed-nights on offer in the same period, usually one month). So, when these forecasts are obtained using single equations time series models, implic...

The apparent turnovers of mitochondrial DNA and of the phospholipids, cardiolipln, lecithin, and phosphatidyl ethanolamine, have been determined simultaneously in the mitochondria of rat liver, kidney, brain, and heart. The turnover rate of mitochondrial DNA in liver was similar to previously reported turnover rates of other mitochondrial components. Mitochondrial DNA has a half-life of 6.7 day...

Due to the rapid turnover of the small intestinal epithelia, the rate at which enterocyte renewal occurs plays an important role in determining the level of drug-metabolizing enzymes in the gut wall. Current physiologically based pharmacokinetic (PBPK) models consider enzyme and enterocyte recovery as a lumped first-order rate. An assessment of enterocyte turnover would enable enzyme and entero...

The apparent turnovers of mitochondrial DNA and of the phospholipids, cardiolipln, lecithin, and phosphatidyl ethanolamine, have been determined simultaneously in the mitochondria of rat liver, kidney, brain, and heart. The turnover rate of mitochondrial DNA in liver was similar to previously reported turnover rates of other mitochondrial components. Mitochondrial DNA has a half-life of 6.7 day...