Resistance of Natural Bamboo Fiber to Microorganisms and Factors that May Affect Such Resistance

Factors that drive HCV resistance to DAAs

Direct-acting antiviral (DAA) agents specifically target viral proteins. Two DAAs have been already been approved for the treatment of HCV infection and many more are in development. DAA treatment of HCV infection, however, leads to the selection of viral variants (produced by the error-prone HCV polymerase) that are resistant to the DAA agent in use. The selection of DAA-resistant HCV variants...

Host resistance selects for traits unrelated to resistance-breaking that affect fitness in a plant virus.

The acquisition by parasites of the capacity to infect resistant host genotypes, that is, resistance-breaking, is predicted to be hindered by across-host fitness trade-offs. All analyses of costs of resistance-breaking in plant viruses have focused on within-host multiplication without considering other fitness components, which may limit understanding of virus evolution. We have reported that ...

antimicrobial resistance in microorganisms

Thermal Stress Resistance to Fracture and its Relation to with Resistance to Thermal Fatigue and Shock

Dense Silicon nitride was investigated to determine the effect of its microstructural parameters and densification on thermo-mechanical properties and thermal stress resistance to fracture initiation during a hot or cold mechanical and thermal shock testing. The different materials and microstructures were obtained by changing the parameters such as the type of the powder, additive, forming p...

Prevalence of Microorganisms Causing Septicemia and Determination of Antimicrobial Resistance in Intensive Care Unit

The objective of this study was to determine the frequency of microorganisms isolated from blood samples of patients admitted to Intensive Care Unit (ICU), and the rate of their resistance to common administered antibiotics in an Iranian ICU. One-hundred patients with Systemic Inflammatory Response Syndromes (SIRS), hospitalized in ICU of Sina Hospital, Tehran, Iran, were entered to this cross-...