La Chiesa in Australia: Cattolici Sottosopra=The Church in Australia: Catholics Sottosopra

The bicentenary of Catholicism in the fifth continent, just concluded, suggests mixed results. Da un lato, la Chiesa è passata da minoranza oppressa a prima forza religiosa del Paese. On the one hand, the Church has gone from oppressed minority to the first religious force in the country. Ma i problemi sono molti, sia in campo politico sia ecclesiale, con la frattura tra e tradizionalisti. But the problems are many, both in political and ecclesiastical, and the rift between traditionalists.

Interindividual Differences in Leg Muscle Mass and Pyruvate Kinase Activity Correlate with Interindividual Differences in Jumping Performance of Hyla multilineata

Frog jumping is an excellent model system for examining the structural basis of interindividual variation in burst locomotor performance. Some possible factors that affect jump performance, such as total body size, hindlimb length, muscle mass, and muscle mechanical and biochemical properties, were analysed at the interindividual (intraspecies) level in the tree frog Hyla multilineata. The aim of this study was to determine which of these physiological and anatomical variables both vary between individuals and are correlated with interindividual variation in jump performance. The model produced via stepwise linear regression analysis of absolute data suggested that 62% of the interindividual variation in maximum jump distance could be explained by a combination of interindividual variation in absolute plantaris muscle mass, total hindlimb muscle mass ( excluding plantaris muscle), and pyruvate kinase activity. When body length effects were removed, multiple regression indicated that the same independent variables explained 43% of the residual interindividual variation in jump distance. This suggests that individuals with relatively large jumping muscles and high pyruvate kinase activity for their body size achieved comparatively large maximal jump distances for their body size.