The Recruitment of Shifting and Inhibition in On-line Science and Mathematics Tasks.

Prior research has investigated the recruitment of inhibition in the use of science/mathematics concepts in tasks that require the rejection of a conflicting, nonscientific initial concept. The present research examines if inhibition is the only EF skill recruited in such tasks and investigates whether shifting is also involved. It also investigates whether inhibition and/or shifting are recruited in tasks in which the use of science/mathematics concepts does not require the rejection of an initial concept, or which require only the use of initial concepts.

Morphologic findings and blood flow parameters of penile vasculature in patients with erectile dysfunction.

The objective was to study the risk factors in patients with erectile dysfunction in correlation with ultrasound findings of penile vasculature. Patients with erectile dysfunction were classified in four groups according to their risk factors. Group A (37 pts) who were heavy smokers, group B (40 pts) who suffered from diabetes mellitus, group C (30 pts) who suffered from hyperlipidemia and group D (40 pts) with no risk factors.