Populations of Triatomas infestans with different susceptibility to pyrethroid insecticides were reported have distinct evolutionary and epidemiological characteristics. We aimed at evaluating metacyclogenesis parasite load as measures vector competence feeding/defecation patterns vectorial capacity estimates a group resistant (“R”) susceptible (“S”) T. infestans. Third instar nymphs each fed o...

In companies, competence management involves several heavy processes that we have categorised in four classes: competence identification, competence assessment, competence acquisition, competence usage. Competence management, being the management of knowledge about competence, can also take advantage from the knowledge engineering techniques to support the mentioned processes. The paper classif...

In bacteria, transformation and restriction-modification (R-M) systems play potentially antagonistic roles. While the former, proposed as a form of sexuality, relies on internalized foreign DNA to create genetic diversity, the latter degrade foreign DNA to protect from bacteriophage attack. The human pathogen Streptococcus pneumoniae is transformable and possesses either of two R-M systems, Dpn...

Excess reactive oxygen species (ROS) beyond the scavenging capacity of antioxidants leads to DNA damage and oxidation of lipoprotein components at the cellular and subcellular level. The oxidative stress (OS) adversely affects sperm function by altering membrane fluidity, permeability and impairs sperm functional competence. In the present study, the OS status in seminal plasma and blood serum ...

objectives: verbal self-instruction strategy is one of the useful techniques for treating individual with learning disability. the purpose of the present study was to determine the effect of verbal self-instructional package on the social competence of students with learning disability. methods: the study was done in a quasi-experimental research and pre-test, post-test design with control grou...