Social supports from teachers and peers as predictors of academic and social motivation

Young adolescents’ perceptions of teachers’ and peers’ multiple classroom supports were examined in relation to motivational outcomes (interest and social goal pursuit). Responses from sixth (n = 120), seventh (n = 115), and eighth (n = 123) grade students concerning four dimensions of support (expectations for specific behavioral and academic outcomes, provisions of help, safety, and emotional nurturing) indicated that social supports differ as a function of students’ sex, grade level, teacher, and classroom, and in their relations to interest and social goal pursuit. Relations of students’ perceptions to motivational outcomes differed as a function of source of support. In addition, students’ perceptions of teacher and peer supports differed as a function of teacher and classroom. In general, findings confirm the utility of a multi-dimensional approach to social support that acknowledges the independent as well as interactive contributions of teachers and peers to student motivation.     

Distance learning for MLA’s centennial!

In celebration of the Medical Library Association’s Centennial, their Continuing Education Committee developed a year of distance learning opportunities concerning evidence-based health care. The Centennial Distance Learning Program, as it became known, strove to reach as many members as possible by offering a wide variety of formats, including a teleconference, Web resources, journal clubs, and a suite of traditional CE courses at the annual meeting. This was the first time that MLA had attempted a multi-level distance learning project and it proved to be a rousing success! For more details, visit the ‘EBHC in Action’ Web page on MLANET at: http://www.mlanet.org/education/telecon/index.html .     

Inter-parent agreement on four preschool behavior rating scales: Effects of parent and child gender

This study investigated inter-parent agreement on four preschool behavior rating scales. Sixty-four cohabiting biological parents rated their four and five year-old children's positive and negative behaviors. Results indicated low to moderate inter-parent correlations across all four preschool behavior rating scales for the total sample. Although mean score differences were not significantly different by parent or child gender, absolute differences between pairs of mothers' and fathers' ratings were large and consistent across instruments, as well as by gender of child and gender of parent. © 1996 John Wiley & Sons, Inc.     

Toward Group Problem Solving Guidelines for 21st Century Teams

Effective problem‐solving skills are criticial in dealing with ambiguous and often complex issues in the present‐day leaner and globally diverse organizations. Yet respected, well‐established problem‐solving models may be misaligned within the current work environment, particularly within a team context. Models learned from a more bureaucratic, homogenously functional organizational structure were not designed specifically to acknowledge and capitalize on the intellectual and functional diversity of teams, to ap‐ppropriate a range of technologies in the process and to work within a more holistic, contextualized view of the problem. Using a case study of a software integration project within a global training company, this article describes possible guidelines for problem solving for 21st century teams.     

The impact of the <Emphasis Type="Italic">Droit de Suite</Emphasis> in the UK: an empirical analysis

The Droit de Suite, known in the UK as Artists’ Resale Rights, provides an artist with the inalienable right to receive a royalty based on the resale price of an original work of art. This paper provides an empirical analysis of actual changes in the UK auction market for art that is newly subject to the Droit de Suite (DDS) because of a change in law. All changes are measured relative to changes for art not subject to the DDS and relative to changes in the auction markets for art in countries where there has been no change in law. We do a difference-in-difference analysis, differencing price growth and sales growth across market segments and across countries over the period 1993–2007. Our results suggest that the introduction of the DDS has not had a consistent negative impact on the UK art auction market during the period of study.     

Upper extremity kinematic trends of fly-casting: establishing the effects of line length

Fly-fishing is a popular form of recreation. Recent evidence has associated overhand fly-casting movements with upper extremity pain. However, little research exists on the motions and coordination common to fly-casting. The aim of this study was to establish upper extremity kinematic trends of fly-casting while casting greater line lengths. It was hypothesized that kinematic casting parameters would increase and time between peak angular velocities would decrease with greater line length. Eighteen males participated in the study. Three-dimensional motion capture was conducted to calculate shoulder, elbow, and wrist kinematics during casting conditions of 6.1, 12.2, 18.3, and 24.4 m of line. Multiple analyses of variance were used to assess the condition effect of line length on the kinematic variables (P = 0.05). Overall, total range of movement increased with increasing length of line cast. Peak angular velocity exhibited a proximal-to-distal trend: peak shoulder internal rotation followed by elbow extension, then wrist ulnar deviation. Time between peak shoulder and elbow angular velocities increased significantly as line length increased. Our findings indicate that specific changes in total range of movement accommodate the demands of casting greater lengths of line. Also, joint velocity coordination patterns of fly-casting appear to follow a proximal-to-distal pattern. These findings represent an initial foundation for connections between kinematics and upper extremity pain reported by fly-fisherman.     

Effects of acute exercise on executive processing, short-term and long-term memory

In the present study, we evaluated the effects of a brief bout of exercise on executive function, short-term memory, and long-term memory tests. Eighteen young adults (mean age 22.2 years, s = 1.6) performed a set-switching test, a Brown-Peterson test, and a free-recall memory test before and after 40 min of moderate aerobic exercise on a cycle ergometer, and two control conditions. Exercise did not facilitate set switching or short-term memory, which suggests that exercise-induced arousal does not influence executive function processes involved in the reconfiguration of information in working memory. Exercise did alter specific aspects of delayed long-term memory. Free recall of items in the primacy and recency portions of the word list declined following the rest and non-exercise conditions, but was maintained after exercise, which suggests that exercise-induced arousal may facilitate the consolidation of information into long-term memory.     

Field and laboratory correlates of performance in competitive cross-country mountain bikers

We designed a laboratory test with variable fixed intensities to simulate cross-country mountain biking and compared this to more commonly used laboratory tests and mountain bike performance. Eight competitive male mountain bikers participated in a cross-country race and subsequently did six performance tests: an individual outdoor time trial on the same course as the race and five laboratory tests. The laboratory tests were as follows: an incremental cycle test to fatigue to determine peak power output; a 26-min variable fixed-intensity protocol using an electronically braked ergometer followed immediately by a 1-km time trial using the cyclist's own bike on an electronically braked roller ergometer; two 52-min variable fixed-intensity protocols each followed by a 1-km time trial; and a 1-km time trial done on its own. Outdoor competition time and outdoor time trial time correlated significantly (r = 0.79, P < 0.05). Both outdoor tests correlated better with peak power output relative to body mass (both r = -0.83, P < 0.05) than absolute peak power output (outdoor competition: r = -0.65; outdoor time trial: r = -0.66; non-significant). Outdoor performance times did not correlate with the laboratory tests. We conclude that cross-country mountain biking is similar to uphill or hilly road cycling. Further research is required to design sport-specific tests to determine the remaining unexplained variance in performance.