Throwing and catching movements exhibit post-activation potentiation effects following fatigue

Many sport and exercise activities require powerful movements of the upper body. Despite their importance, there is a paucity of research examining stretch-shortening cycle (SSC) activities occurring in the upper limbs. The purpose of this study was to examine the effect of fatigue on throwing performance (height of throw) and biomechanical factors of the upper limbs (reactive strength index; hand contact time) using a specially constructed sledge apparatus for the upper body. Ten male subjects aged between 19 and 21 years performed a series of rebound throws (RBT) in a non-fatigued state to obtain a maximal baseline throw score. Subjects then performed a RBT fatiguing protocol on the upper body sledge followed by further RBT, at 15, 45, 120 and 300-seconds post fatigue. Markers on the subjects' limb and the sledge were analysed using Motion Analysis Corporation 3-D kinematic analysis system (200 Hz). Throwing height, contact time and reactive strength index were determined. Mean throwing height and reactive strength index showed significant decreases following fatigue and increases during recovery (p < 0.05). The results confirm the presence of post-activation potentiation (PAP) in RBT performance. This finding could be useful when optimising recovery periods in training or implementing complex training methods.     

The International Standard Text Code: Call to Action, or Distraction?

Book publishers now have more products to keep track of than ever before: books, eBooks, apps, online products, and the list goes on. Traditionally publishers have used the ISBN to track products in the supply chain. But with as many as 24 ISBNs now associated with a bestselling title, the publishing industry looks to a new identifier, the International Standard Text Code (ISTC), to keep ISBNs in check. In a sea of data, will the ISTC help keep publishers afloat, or weigh them down?     

Giving Credit Where Credit Is Due: Designing Open Badges for a Technology Integration Course

This paper describes the design, development, and implementation of Open Badges into a secondary education preservice course on instructional technology. Open Badges provide a new way of issuing credentials to individuals who demonstrate knowledge, skill, or ability in a particular domain. Badges provide a simple system for communicating a skill along with specific information about the evidence connected with earning the badge. In this paper, we describe the course in detail along with the several iterations of design that resulted in the development of the badge system, along with the challenges faced and lessons learned for future design and use of Open Badges.     

An MMB Special: Survey of Broadcasting Texts Compared

Harrison B. Summers, Robert E. Summers, and John H. Pennybacker, Broadcasting and the Public (Belmont, Calif.: Wadsworth Publishing Co., 1978—$13.95)

Giraud Chester, Garnet R. Garrison, and Edgar E. Willis, Television and Radio (Englewood Cliffs, N.J.: Prentice-Hall, l978—price not given)

Saundra Hybels and Dana Ulloth, Broadcasting: An Introduction to Radio and Television (New York: D. Van Nostrand Co., 1978— price not given)     

Popular Culture (Frank Oglesbee)

Randall P. Harrison, The Cartoon: Communication to the Quick (Beverly Hills: SAGE Publications, SAGE ComnText series, 1982, 14.00 cloth, 6.95 pb)

John Caldwell Mug Shots (21 Central Ave., Albany, NY 12210: Fantaco enterprises, 1980, 2.95 pb, unpaginated),

Jan Harold Brunvand The Vanishing_Hitchhiker: American Urban Legends and Their Meanings (NY: W.W. Norton, 1981, 208 pp., 14.95 cloth)

Richard Lipsky How We Play the Game: Why Sports Dominate American Life (Boston: Beacon Press, 1981, 189 pp., 7.25, pb)

Alan Gowans Learning to See: Historical Perspectives on Modern Popular Commercial Arts (Bowling Green, OH: Bowling Green University Popular Press, 1981, 22.95 cloth, 13.95 pb, 514 pp.)     

Take a Paws: Fostering Student Wellness with a Therapy Dog Program at Your University Library

Therapy dogs are trained and socialized to provide comfort to individuals who are ill or experiencing stress. The following article explores therapy dog outreach programs in academic libraries by describing a successful venture at McGill University Library. Background, planning advice, assessment results, and recommendations are presented with an aim to inform those who would like to implement similar programs at their libraries.     

THE RELIGIOUS TRAINING OF CHILDREN

Silence needs to be shown to be taught. This is because the nonverbal, which is a different way of referencing the world than symbols, cannot be translated into words. Teaching silence is of special importance today because of the connection between silence and the creation of existential meaning, as well as the functioning of the creative process itself. The loss of silence in our culture will result in the loss of religious meaning and the impairment of creativity. Without deep meaning and the creative process the human species is at risk.     

Spatial Ability: A Neglected Talent in Educational and Occupational Settings

For over 60 years, longitudinal research on tens of thousands of high ability and intellectually precocious youth has consistently revealed the importance of spatial ability for hands-on creative accomplishments and the development of expertise in science, technology, engineering, and mathematical (STEM) disciplines. Yet, individual differences in spatial ability are seldom assessed for educational counseling and selection. Students especially talented in spatial visualization relative to their status on mathematical and verbal reasoning are particularly likely to be underserved by our educational institutions. Evidence for the importance of assessing spatial ability is reviewed and ways to utilize information about individual differences in this attribute in learning and work settings are offered. The literature reviewed stresses the importance of spatial ability in real-world settings and constitutes a rare instance in the social sciences where more research is not needed. What is needed is the incorporation of spatial ability into talent identification procedures and research on curriculum development and training, along with other cognitive abilities harboring differential—and incremental—validity for socially valued outcomes beyond IQ (or, g, general intelligence).