We are concerned about the problem of transmitting constant quality video over the B-ISDN. A gain in channel utilization is achieved when several Variable Bit Rate video sources share a common ATM connection. To achieve such gain, the impact of cell losses on video quality degradation should be considered. Multi-layered video coding has proved to tolerate more cell losses than non-layered video...

Research work reports the synthesis method of nanocomposite ZnO/CuO/β-CD and it is characterized by X-ray diffraction UV-vis absorption spectra. Photocatalytic activity measured using organic dye Malachite Green (MG) as model pollutant. Dye degradation follow pseudo first order kinetics. Efficiency photocatalytic process percentage degradation. Rate constant band gap also calculated.

256 words Introduction 473 words Discussion – 1238 words d) List of non-standard abbreviations: CYP, cytochrome P450; b5, cytochrome b5; AUC, area under the plasma concentration time curve; ki, reversible inhibition constant; kdeg, rate constant for enzyme degradation; kinact, the maximal rate constant for inactivation; KI, inactivator This article has not been copyedited and formatted. The fin...

Protein synthesis in isolated rat hepatocytes, as measured by the incorporation of [14C]-valine at constant specific radioactivity, proceeded at a rate of 0.3-0.5%/h in an unsupplemented medium, i.e. only about one-tenth the rate of protein degradation (4%/h). Leupeptin, which inhibits lysosomal protein degradation (previously found to be 75% of the total degradation in hepatocytes), had no eff...

Proteolytic machines powered by ATP hydrolysis bind proteins with specific peptide tags, denature these substrates, and translocate them into a sequestered compartment for degradation. To determine how ATP is used during individual reaction steps, we assayed ClpXP degradation of ssrA-tagged titin variants with different stabilities in native and denatured forms. The rate of ATP turnover was 4-f...