The chemistry of element 113 is investigated by theoretical methods. The results of fully relativistic calculations for ~113!H and ~113!F are compared with those derived by other techniques to obtain an indication of the accuracy of the more approximate models as well as the importance of including scalar and/or spin–orbit relativistic effects. Both of these effects are found to be important. T...

In recommending physical activity for public health, authors have advocated either an approach in which the participant is to follow a prescription developed by a professional or an approach based on the participants' own preferences. This review explores the potential for convergence between these two approaches by examining: (i) whether the exercise intensity that participants select is withi...

Phenotypic plasticity, the capacity of a single genotype to exhibit variable phenotypes in different environments, is common in insects and is often highly adaptive. Virtually any abiotic or biotic factor can serve to induce plasticity, and resulting changes vary from harmful susceptibilities to highly integrated and adaptive alternative phenotypes. Numerous physiological mechanisms accomplish ...

the aim of this study was to evaluate standard and safety indexes in tehran fitness gyms. the population consisted of state and private fitness clubs in tehran.  5 regions of tehran city were selected by cluster sampling method; then, 20 clubs from each region were selected by on non-random convenience sampling method, so a total of 100 fitness clubs were assessed. the aim of this study was app...

The desirability of testing the efficiency of any type of "bodybuilding" program has been commented upon and a method of determining the effect of such a program upon an individual's fitness has been described.5 However, such programs usually include large numbers of individuals, and the separate testing of each one at relatively frequent intervals is so time-consuming as to be impractical; in ...

The aims of the present study were to examine the relationship between the perceived work ability and health-related quality of life (HRQoL) and to investigate their associations with age, physical activity and physical fitness in middle-aged Finnish men. This investigation included two cross-sectional studies (III, IV) and a cohort study with a 15year follow-up (I, II). The subjects in the cro...