The Generalized Mean

This article defines the generalized mean and shows how it relates to such statistics as the arithmetic, geometric and harmonic means.     

No One Can Understand Quantum Mechanics [at Least Not Until After It Is Replaced by a Superior Theory]

Science & Education -     

What facilitates and impedes collaborative work during higher education software implementation projects?

Implementations of new or major upgrades of existing student information systems require incorporation of new paradigms and the exchange of familiar routines for new methods. As a result, implementations are almost always time consuming and expensive. Many people in the field of information technology have identified some of the challenges faced by campuses that attempt to modify their student services. The work of Gardner et al. (Good work: When excellence and ethics meet. Basic Books, New York, 2001) was used as a model to examine the experiences of those involved in implementations and to explore how the values of staff members influence the experience of change. Analysis of student information system implementations at 10 institutions of higher education was conducted. Over a 2-month period, data were gathered from 74 people through a combination of online surveying, telephone interviews, and completion of a Q-sort instrument based on the published instrumentation of Gardner et al. (2001). Statistical analyses of the online survey and Q-sort results and use of the SPSS Text Analysis for Surveys 2.0 User’s Guide (SPSS Inc., Chicago, 2006) revealed trends that highlighted the overall perceived importance of communication, collaboration, and problem solving for implementation success. Analysis also highlighted campus members’ satisfaction level with the implementation process and how their satisfaction varied depending on if the implementations were completed or still “in process.” Discussion includes pragmatic recommendations for future implementations.     

Stressors experienced by injured athletes

The purpose of this study was twofold: (a) to examine the stressors experienced by injured athletes during three phases of their recovery from sport injury, and (b) to explore the differences in the stressors experienced by team as compared to individual-sport athletes. Participants comprised previously injured high-level rugby union players (n = 5) and golfers (n = 5). Semi-structured interviews were used to explore the stressors participants experienced during three phases of injury (onset, rehabilitation and return to competitive sport). Within- and cross-case analyses showed that athletes experienced sport, medical/physical, social and financial stressors. There were a number of differences in the stressors experienced across the three phases and between team and individual-sport athletes. Findings have important implications for the design and implementation of interventions aimed at managing the potentially stressful sport injury experience and facilitating injured athletes' return to competitive sport.     

The development and maintenance of mental toughness: perceptions of elite performers

Seven participants from a previous study (Jones, Hanton, & Connaughton, 2002) agreed to be interviewed about the development of mental toughness. We also aimed to determine whether mental toughness requires maintenance. Semistructured interviews were conducted to elicit the participants' perceptions of how mental toughness is cultivated and retained. Findings indicated that the development of mental toughness is a long-term process that encompasses a multitude of underlying mechanisms that operate in a combined, rather than independent, fashion. In general, these perceived underlying mechanisms related to many features associated with a motivational climate (e.g. enjoyment, mastery), various individuals (i.e. coaches, peers, parents, grandparents, siblings, senior athletes, sport psychologists, team-mates), experiences in and outside sport, psychological skills and strategies, and an insatiable desire and internalized motives to succeed. It was also reported that once mental toughness had been developed, three perceived underlying mechanisms were required to maintain this construct: a desire and motivation to succeed that was insatiable and internalized, a support network that included sporting and non-sporting personnel, and effective use of basic and advanced psychological skills. Practical implications and future avenues of research are discussed.     

身边的真理

A Partial List1.This is it!2.There a re no hidden mea nings.3.You ca nnot get there from here,a nd besides there is no pla ce else to go.4.Nothing la sts!5.There is no wa y of getting a llyou wa nt.6.You ca nnot ha ve a nything unless you let go of it.7.Y…