Condition of Football Players During and After the Season as Indicated by Cardiovascular and Strength Tests

Previous studies of the physiological condition of athletes have furnished evidence indicating that strenuous and persistent activity modifies cardiovascular function and increases body strength. The modifications in cardiovascular function which come as a result of activity remain only as long as the activity continues. Further investigation was conducted in this study with specific attention given to the cardiovascular and strength modifications of football players during, immediately following, and several weeks after the season. This study utilized two previously validated cardiovascular tests: namely, the Harvard Step Test and the Carlson Fatigue Test. Roger’s strength test, which also has been previously validated, was utilized to measure the strength of the subjects. Data were obtained from the results of these tests which were administered to nine freshmen football players who volunteered to participate in this study. Utilization of these data will appear in the ensuing chapters

A geophysical study of microearthquake activity near Bowman, South Carolina

M.S.Leland T. Lon

Comparative analysis of the effect of a closed-loop irrigation system on crop yield

M.S.Leslie G. Callahan, Jr

Performance of Crosstalk Cancellation in VDSL

Crosstalk in DSL leads to significant performance degradation and large loses in data-rate. Several crosstalk cancellation techniques have been proposed to address this problem, however, in the existing literature the analysis of these approaches is based on SNR calculations and the SNR-gap approximation. Furthermore, for crosstalk cancellation techniques based on decision feedback, the effect of error propagation is completely ignored. This makes it hard to predict the performance of crosstalk cancellation in real life, and to see if the significant potential gains can actually be realized. To address this problem, this paper uses Monte-Carlo simulation to investigate the performance of the various crosstalk cancellation techniques that have been proposed. The effect of noise-enhancement in zero-forcing crosstalk cancellers and error-propagation in decision-feedback cancellers is examined. The results confirm that a very simple crosstalk cancellation structure can achieve near-optimal performance

An Analysis of Granulocyte Kinetics in Blood and Bone Marrow

journal articleBiomedical Informatic

A PVC Detection Program

journal articleBiomedical Informatic

High-Density Medical Data Management by Computer

journal articleBiomedical Informatic

Do Enhanced Compiler Error Messages Help Students? Results Inconclusive.

One common frustration students face when first learning to program in a compiled language is the difficulty in interpreting the compiler error messages they receive. Attempts to improve error messages have produced differing results. Two recently published papers showed conflicting results, with one showing measurable change in student behavior, and the other showing no measurable change. We conducted an experiment comparable to these two over the course of several semesters in a CS1 course. This paper presents our results in the context of previous work in this area. We improved the clarity of the compiler error messages the students receive, so that they may more readily understand their mistakes and be able to make effective corrections. Our goal was to help students better understand their syntax mistakes and, as a reasonable measure of our success, we expected to document a decrease in the number of times students made consecutive submissions with the same compilation error. By doing this, we could demonstrate that this enhancement is effective. After collecting and thoroughly analyzing our own experimental data, we found that—despite anecdotal stories, student survey responses, and instructor opinions testifying to the tool’s helpfulness— enhancing compiler error messages shows no measurable benefit to students. Our results validate one of the existing studies and contradict another. We discuss some of the reasons for these results and conclude with projections for future research

Bull management for efficient reproduction

"Superior herd sires properly managed are the greatest asset in a cow-calf operation. Generally, the herd bull contributes 50 percent of the total genetic variation of your calf crop annually. In most closed herds, however, the past three herd sires contribute 85 to 90 percent of the total genetic variation in the herd. This high percentage is due to selection intensity or replacement rate of cows and bull."--First page.John W. Massey and Homer B. Sewell (Department of Animal Science, College of Agriculture)New 8/82/10