Since there are variations in the reaction times of athletes in different sports, the aim of the present study was to evaluate the effectiveness of a specific training program on a simple reaction time of male gymnasts. In this longitudinal study, fourteen adolescent gymnasts (mean age 12.6 ± 2.1 years) were randomly selected to work out for 15 months in the artistic group. Simple reaction ti...

The reaction of iodoacetic acid with ribonuclease has been studied recently by Gundlach et al. (1). Inactivation of the enzyme occurred over a wide range of pH. The authors concluded that at acid pH the reaction involved solely methionyl residues, that at pH 5.5 a histidyl residue was the principal site of attack, and that at alkaline pH values significant reaction at lysyl residues occurred. O...

We find that on average an announcement of rising unemployment is “good news” for stocks during economic expansions and “bad news” during economic contractions. Thus stock prices usually increase on news of rising unemployment, since the economy is usually in an expansion phase. We provide an explanation for this phenomenon. Unemployment news bundles two primitive types of information relevant ...