Effects of different warm-up modalities on power output during the high pull

This study compared the effects of six warm-up modalities on peak power output (PPO) during the high-pull exercise. Nine resistance-trained males completed six trials using different warm-ups: high-pull specific (HPS), cycle, whole body vibration (WBV), cycle+HPS, WBV+HPS and a control. Intramuscular temperature (T_m) was increased by 2°C using WBV or cycling. PPO, T_m and electromyography (EMG) were recorded during each trial. Two high-pulls were performed prior to and 3 min after participants completed the warm-up. The greatest increase in PPO occurred with HPS (232.8 ± 89.7 W, P < 0.001); however, this was not different to combined warm-ups (cycle+HPS 158.6 ± 121.1 W; WBV+HPS 177.3 ± 93.3 W, P = 1.00). These modalities increased PPO to a greater extent than those that did not involve HPS (all P < 0.05). HPS took the shortest time to complete, compared to the other conditions (P < 0.05). EMG did not differ from pre to post warm-up or between modalities in any of the muscles investigated. No change in T_m occurred in warm-ups that did not include cycling or WBV. These results suggest that a movement-specific warm-up improves performance more than temperature-related warm-ups. Therefore, mechanisms other than increased muscle temperature and activation may be important for improving short-term PPO.     

The new library building at the University of Texas Health Science Center at San Antonio

The new University of Texas Health Science Center at San Antonio Library opened in June 1983, replacing the 1968 library building. Planning a new library building provides an opportunity for the staff to rethink their philosophy of service. Of paramount concern and importance is the need to convey this philosophy to the architects. This paper describes the planning process and the building's external features, interior layouts, and accommodations for technology. Details of the move to the building are considered and various aspects of the building are reviewed.     

Textbook treatments and students' understanding of acceleration

A single science textbook often provides the syllabus for courses at upper secondary and tertiary levels, and may be used as a principal source of information or explanation. The research reported in this article challenges such practices. The ways in which the concept, acceleration, is treated in physics textbooks is compared with understandings of the concept demonstrated by final-year secondary (Year 12) and first-year university students. Some students' understandings are shown to be incomplete in ways that parallel misleading or inaccurate textbook treatments of the concept. In addition to misleading or inaccurate statements, the limitations of some textbook treatments of acceleration were found to include: lack of attempts to make explicit relationships with other concepts, failure to point out when it is appropriate to use particular definitions or that an alternative definition might be more appropriate in specific situations, inclusion of operational definitions without conceptual explanations, and a focus on quantitative treatments while overlooking the development of qualitative understanding. Two principal aspects that distinguished the ways in which the students understood acceleration were identified: (a) the relation between acceleration and velocity; and (b) the relation between acceleration and force(s). The results of the study have implications for teaching and, in particular, for the use of textbooks in teaching. These implications are discussed in the article.     

Psychological Adaptation of Turkish Students at U.S. Campuses

The number of Turkish citizens entering the U.S. for their studies is growing more rapidly than almost any other group. The purpose of the current study was to investigate how acculturation factors affect psychological adaptation of Turkish students in the U.S. One hundred and twenty-four Turkish students participated in the study. Regression analyses revealed that social support and self-esteem were predictors of psychological adjustment. Implications suggest that Turkish students, as with other international students as previous research has suggested, should have a strong network of both co-national students and other social connections.     

Socio-economic status,cultural diversity and the aspirations of secondary students in the Western Suburbs of Melbourne,Australia

Using data from a recent survey of Australian secondary students, we find that those from higher socio-economic backgrounds are more likely to aspire to attend university. The same can be said for students who do not speak English at home. We find that students with an ethnic minority background are more likely to perceive higher levels of support from parents. However, we find that all students believe they receive encouragement from their parents to do well at school (rather than discouragement or disinterest), and that there is little difference in the level of importance placed on the views of parents between students from English and non-English speaking background. While interest in university education is strong across all socio-economic groups, particularly for students who do not speak English at home, there is a considerable gap between aspirations and enrolment levels. We suggest that this ‘aspirations gap’ is larger for students from low socio-economic backgrounds. This analysis also supports growing evidence that the postcode methodology for allocating socio-economic status to individuals is unreliable.