There is a substantial evidence that plyometric training significantly increases muscular strength and vertical jump. Due to the vigorous nature of this type of training, however, there is a risk of incurring musculoskeletal injuries. Therefore, conducting plyometric exercise programs in an aquatic environment might lead to significant improvements in vertical jump with possibly a lower risk of...

The paper examines time series properties and efficiency of a securities market where disparately informed traders hold rational expectations and extract signals from the endogenous market price. Two equilibria are calculated, using a method of Sargent to handle the problem of infinite regress. When rational speculation is the sole source of potential trade, the market price reflects all privat...

We study inversions of the jump operator on Π1 classes, combined with certain basis theorems. These jump inversions have implications for the study of the jump operator on the random degrees—for various notions of randomness. For example, we characterize the jumps of the weakly 2-random sets which are not 2-random, and the jumps of the weakly 1-random relative to 0′ sets which are not 2-random....

Effects of thermal modification were determined relative to chemical parameters Pinus roxburghii. Thermal wood was carried out at 80, 120, 160, and 200 °C for 2, 4, 6 h. The properties different temperatures heating time. All similar except cold water soluble extractives. Among the studied, maximum mean value extractives (8.20%), hot (12.7%), holocellulose content (71.8%), ash (1.46%) recorded ...

We prove that a set is K-trivial if and only if it is not weakly ML-cuppable. Further, we show that a set below zero jump is K-trivial if and only if it is not ML-cuppable. These results settle a question of Kučera, who introduced both cuppability notions.