The purpose of the present study was to evaluate the anthropometric and physical characteristics of English academy rugby league players by annual-age category (under 16s-under 20s) and between backs and forwards. Data were collected on 133 academy players over a 6-year period (resulting in a total of 257 assessments). Player assessments comprised of anthropometric (height, body mass, sum of 4 ...

BACKGROUND There has been speculation that running backs with an excessive number of carries in college are less likely to be successful in the National Football League (NFL). PURPOSE To determine whether there is a correlation between number of carries by college running backs and future performance and injury risk in the NFL. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS Usin...

First-principles quantum calculations are potentially of great value for assessing the plausibility of proposed catalytic reaction mechanisms. The present analysis of reaction pathways and energetics for key elementary steps in the catalytic decomposition of NO to N2 + O2 by Cu-exchanged zeolites yields novel insights into this widely studied reaction. We find evidence for a pathway involving t...

We first scale the instance. If we see two points x, y as a vector, we can replace them by αx and αy. By the properties of a norm, w(αx, αy) = ‖αx − αy‖ = α‖x − y‖. Therefore all distances are scaled by α. We choose an α > 0 such that all vertices fit exactly into an axis-parallel n2 × n2 square (where n = |V |), i. e., all vertices fit into the square and there are two vertices that lie on opp...

Respiratory complex I converts the free energy of ubiquinone reduction by NADH into a proton motive force, a redox reaction catalyzed by flavin mononucleotide(FMN) and a chain of seven iron-sulfur centers. Electron transfer rates between the centers were determined by ultrafast freeze-quenching and analysis by EPR and UV/Vis spectroscopy. The complex rapidly oxidizes three NADH molecules. The e...

Today’s enterprise data centers support thousands of missioncritical business applications composed of multiple distributed heterogeneous components. Application components exhibit complex dependencies on the configuration of multiple data center network, middleware, and related application resources. Applications are also associated with extended life-cycles, migrating from development to test...

the aim of this study was to describe and assess general anthropometric measurements and somatotypes of elite male players of iran adult handball national team and to compare these measurements with those of european elite players in different positions. 19 elite handball players of iran national handball team including goalkeepers (n=4), wing (n=4), center backs (n=2), pivots (n=2) and backs (...