Jet Decorrelation and Jet Shapes at the Tevatron

We present results on measurements of jet shapes and jet azimuthal decorrelation from $\overline{p}p$ collisions at $\sqrt{s}=1.8$ TeV using data collected during the 1992--1993 run of the Fermilab Tevatron. Jets are seen to narrow both with increasing $E_T$ and increasing rapidity. While HERWIG, a parton shower Monte Carlo, predicts slightly narrower jets, it describes the trend of the data well; NLO QCD describes qualitative features of the data but is sensitive to both renormalization scale and jet definitions. Jet azimuthal decorrelation has been measured out to five units of pseudorapidity. While next--to--leading order QCD and a leading--log approximation based on BFKL resummation fail to reproduce the effect, HERWIG describes the data well.Comment: LaTex, 10 pages (including 7 Postscript figures). To appear in the Proceedings of Les Rencontres de Physique de la Vallee d'Aosta, La Thuile, Val d'Aosta, Italy, March 199

PARTICIPATION AND PERCEPTIONS OF RESISTANCE TRAINING IN FORMER FEMALE HIGH SCHOOL ATHLETES

Resistance training (RT) has been shown to better prepare athletes for the physical demands of their sport. However, former female high school athletes’ participation rates and perceptions of RT are unknown. The aim of this study was to identify key factors and themes influencing participation and perceptions of RT in this population. Former female high school athletes (n=73) between the ages of 18-24 years old completed an electronic questionnaire-based survey. The survey included a RT questionnaire and background questions regarding each participant’s high school athletic environment. We examined responses to identify how high school athletic environments may influence subsequent participation and perceptions of RT. Our results showed that 64 participants (84.9%) performed RT while in high school and 42 participants (57.5%) currently use RT in their exercise routine. Those currently participating in RT have significantly greater perceived benefits (p\u3c0.001) and lower perceived barriers (p\u3c0.001) than those who do not participate. Additionally, individuals who participated in RT while in high school have significantly greater perceived benefits (p\u3c0.001) than those who did not participate. Our findings indicate that RT participation for high school female athletes will likely lead to positive views of RT in early adulthood. Introducing various methods of RT to female athletes during adolescence can assist in increasing knowledge, gaining confidence, and shaping overall opinions of this form of exercise. Keywords: Adolescent(s), strength training, weightlifting, girls, secondary schoo

The Revision Strategies of Skilled and Unskilled ESL Writers: Five Case Studies

Recently, the teaching of writing has shifted from an emphasis on the final product to that of the process of writing. Research, primarily first language studies (Emig, 1971; Flower and Hayes, 1978; Sommers, 1978; Perl, 1979; Pianko, l979), has resulted in implications suggesting that revision plays a crucial and mediating role in the writing process. However, related research in ES/FL is still lacking. This th es is reports on a study designed to investigate the revision strategies of skilled and less skilled ESL writers for similarities and differences. This descriptive analysis required the implementation of process/product methodology, specifically tailored to reveal how each writer went about the task of using revisions to improve their essays. Relevant findings indicate that skilled writers were better able to evaluate the writing task by arranging their priorities to give revision a complementary and productive role in the writing process. Unskilled writers tended to employ revisions less efficiently

Radar altimetry systems cost analysis

This report discusses the application and cost of two types of altimeter systems (spaceborne (satellite and shuttle) and airborne) to twelve user requirements. The overall design of the systems defined to meet these requirements is predicated on an unconstrained altimetry technology; that is, any level of altimeter or supporting equipment performance is possible