Photography

The Portfolios of Ansel Adams (Boston: New York Graphic Society, 1977—$19.50)

Kelly Wise's Still Points (Addison House, Morgan's Run, Danbury, N.H. 03230—$8.95, paper)

Jeffrey Weiss and Herbert H. Wise, Good Lives (New York: Quick Fox, with distribution by Hyperion Press of Westport, Ct., 1977—$6.95, paper)

The Best of Photojournalism 2 (New York: Newsweek Books, 1978—$16.95/9.95)

Marious B. Peladeau's Chansonetta: The Life and Photographs of Chansonetta Stanley Emmons 1858-1937 (Dobbs Ferry, N.Y.: Morgan and Morgan, l977—$8.95)

A.D. Coleman's The Grotesaue in Photography (New York: Ridge Press/Summit Books [Simon and Schuster], 1977—$10.00 1 paper)

Francesco Scavullo, et al. Scavullo on Men (N.Y.: Random House, 1977—$15.00)

Barbra Walz and Bernadine Morris's The Fashion Makers: An Inside Look at America's Leading Designers (N.Y. :Random House, 1978— $15.00)

Charles Klamkin and Matthew Isenberg's Photographica: A Guide to the Value of Historic Cameras and Images (New York: Funk & Wagnalls, 1978—$15.95)

Genoa Caldwell, ed. The Man Who Photographed the World: Burton Holmes Travelogues, 1892-1938 (New York: Harry Abrams, 1977—$25.00)

Peter Pollack's The Picture History of Photography: From the Earliest Beginnings to the Present Day (New York: Harry Abrams, 1977—$8.95, paper)     

A Review of: “CODE: Collaborative Ownership and the Digital Economy,edited by Rishab Aiyer Ghosh. Cambridge,MA: MIT Press, 2005. x + 345 pp. $37.50 (cloth). ISBN 0-262-07260-2.”

Various distributed work arrangements have been enabled by advances in information system and communication technologies. To date, these new arrangements have met with varying success, and it is unclear what outcomes society, organizations, and individuals expect from such new work settings. Moreover, we do not understand how aspects of the work environment, tasks, employees, management, and technology might interact to result in different outcomes. This article attempts to provide an integrative view of research on distributed work arrangements and provides a framework for exploring the impacts of these arrangements.     

A novel method for the performance of isometric exercise in the home

There is a paucity of research on devices suitable for home-based isometric exercise. Our aim was to compare cardiovascular responses to isometric exercise using novel and established methods. Ten individuals (age 34.0?±?8.5 years, mass 68.2?±?10.4?kg, height 1.72?±?0.09?m; mean?±?s) performed three different isometric exercise protocols with 48?h between each. Each protocol involved four repeated exercise bouts of 2?min at 30% maximum voluntary contraction force using alternate legs (transducer), alternate arms (transducer), or alternate arms (novel device). Systolic blood pressure, diastolic blood pressure, mean arterial blood pressure and heart rate were measured every 30?s. The highest (peak) values during each 2?min bout of exercise were recorded (peak systolic blood pressure, peak diastolic blood pressure, peak mean arterial blood pressure and peak heart rate). At the end of each 2?min exercise bout, the participants rated their perceived discomfort using Borg's CR-10 scale. There was a statistically significant difference in peak systolic blood pressure between isometric arm flexion using the force transducer and the novel device [158.1?±?10.8 vs. 149.1?±?13.9?mmHg (mean?±?s); P = 0.02]. Further analysis showed that peak systolic blood pressure was on average 9?mmHg higher using the force transducer with limits of agreement of –?15.97 to 33.97?mmHg. Analysis of the peak diastolic blood pressure, peak mean arterial blood pressure, peak heart rate and CR-10 data revealed no statistically significant differences between the three protocols. These results suggest that this novel, home-based method elicited similar cardiovascular responses during isometric exercise to those of established laboratory-based methods. However, the lower peak systolic blood pressure using the modified scales warrants further investigation before this method is used widely in the home.     

A comparison of time-motion and technical–tactical variables between age groups of female judo matches

Abstract

The aim of the study was to verify differences between age groups of female judo matches in time-motion and technical–tactical analysis. The sample was composed of pre-cadet (13–14 years, n = 148), cadet (15–16 years, n = 228), junior (17–19 years, n = 104) and senior (>20 years, n = 237) groups. The time-motion indicators consisted of total combat time, standing combat time, displacement without contact, gripping time, total time of techniques, groundwork combat time and pause time, per match and by each combat/pause cycle. Technical and tactical variables were also collected. The one-way analysis of variance and a post hoc test were conducted, P ≤ 0.05. Cadets, with a median of 7 (2, 12), had a number of combat/pause cycles different from junior, with 3 (1, 8.5). Regarding time-motion per match and per cycle, senior had longer total combat time, standing combat time and gripping time than other groups. Senior presented lower frequency of leg techniques than pre-cadet, cadet and junior. Time-motion and technical–tactical variables effects in female judo athletes emphasise the difference between seniors and other groups.     

Landing techniques in volleyball

Abstract

Knee injuries such as anterior cruciate ligament lesions and patellar tendonitis are very frequent in volleyball, and are often attributed to micro traumas that occur during the landing phase of airborne actions. The aim of the present study was to compare different jumping activities during official men's and women's volleyball games. Twelve top-level matches from the Italian men's and women's professional leagues were analysed. The jumps performed during the games were classified according to the landing technique used by the player (left or right foot or both feet together), court position, and ball trajectory. Chi-square analyses were performed to detect differences in landing techniques between the sexes, court positions, and trajectories when serving, attacking, blocking, and setting. Significant differences (P < 0.05) were found between the sexes for block, set, and spike but not for the jump serve. The frequency of landings on one foot was related to court position and the trajectory of the sets: when spiking faster sets, the players were more likely to use a one-footed landing. The present results should help coaches and physiotherapists to devise appropriate training and prevention programmes, and reveal the need for further detailed biomechanical investigations of the relationships between landings and knee injuries.     

A three‐dimensional cinematographical analysis of the volleyball spike

The objectives of this study were to describe the volleyball spiking actions used by players in top‐level competition, and also to examine the interrelationships between upper limb, lower limb and whole body kinematic variables, and post‐impact ball speed in the spiking technique. Two Photosonics Biomechanics 500 cine‐cameras operating at a nominal frame rate of 100 Hz were used to film the spiking actions of 10 male senior international volleyball players at the XVI Universiade (1991 World Student Games). Three‐dimensional object space co‐ordinates of digitized image co‐ordinates were obtained using a DLT algorithm and an array of calibration points in the filmed volume. Relationships between lower limb angular kinematics at take‐off, centre of mass vertical velocity at take‐off and centre of mass vertical displacement (jump height) were examined. Relationships between angular kinematics of the hitting arm and post‐impact ball speed were also determined. The mean (± S.E.) centre of mass vertical velocity at take‐off was 3.59 ± 0.05 m s‐¹ and the mean height jumped was 0.62 ± 0.02 m. As expected, a significant correlation was found between the square of the centre of mass vertical velocity at take‐off and jump height (r = 0.78; P <0.01). No significant correlations were found between lower limb angular kinematics and centre of mass vertical velocity at take‐off or jump height. The mean post‐impact ball speed was 27.0 ± 0.9 m s‐¹, and this was significantly correlated to maximum right humerus angular velocity (r=0.75; P< 0.01). Trunk rotation angular kinematics and right elbow angular velocity did not correlate significantly with post‐impact ball speed. It was also noted that the majority of players filmed did not fit into any of the spiking categories identified in earlier studies.     

Alien or Alike? How the Perceived Similarity Between the Typical Science Teacher and a Student’s Self-Image Correlates with Choosing Science at School

By applying the self-to-prototype matching theory to students?? academic choices, this study links the unpopularity of science in many industrialized countries with the perceived gap between typical persons representing science (e.g. physics teachers) on the one hand and students?? self-image on the other. A sample of N?=?308 Dutch and German students described both themselves and typical teachers representing different school subjects using 65 trait adjectives. The following hypotheses were tested: The typical hard sciences teacher and the typical languages teacher will be perceived as differing in their personal characteristics. The typical physics teachers will be perceived as being less similar to students' own self-image than teachers representing languages. Actual choices students make during secondary school should correlate with the perceived fit between students?? self-image and the prototype of teachers representing different school subjects, especially in the less frequent and less popular choices of a math or physics major/profile. The findings supported these hypotheses. The discussion stresses that students acquire not only knowledge about science but also about science culture (sensu Aikenhead) in their science classes and that students?? image of science teachers can influence their academic choices.     

Learning from fellow engineering students who have current professional experience

This paper presents an investigation of how experience-led content in an engineering degree can be strengthened by creating opportunities for engineering students to benefit from the knowledge, skills and resources of students with current professional experience. Students who study civil engineering part-time at Coventry University (while also working in the industry) are being used as mentors for full-time students, and careful attention is being paid to the input they can make to group project work. This paper reviews the results of evaluations of these two initiatives. The clearest enhancement to learning provided by the part-time students in these settings is the access they provide for the full-time students to real examples and the provision of actual physical artefacts such as drawings, photos, example documents and templates. Full-time students also gain an awareness of the value of the professional skills. The study confirms the value of these initiatives and points to future improvements.     

Implications of risk and resilience in the life of the individual who is gifted/learning disabled

The constructs of risk and resilience and their implication in the life of individuals who are gifted, learning disabled, and gifted/learning disabled will be explored in this paper. The intent is to understand further how the constructs of risk and resilience affect individuals who are gifted/learning disabled. The paper includes a discussion of risk and resilience, followed by a discussion of learning disabilities, giftedness, and learning disabilities combined with giftedness. Each of these sections addresses the risk factors that hinder normal development and make the individual more vulnerable and the protective factors that serve to buffer the individual's response to adversity. Interventions that may foster resilience in the individual who is gifted/learning disabled are proposed.     

Young People's Voluntary and Campaigning Activities as Sources of Political Education

The article begins by examining the predominant image of young people today as alienated, apathetic, and uninvolved in their communities. It is argued that any debate about participation and politics should consider young people's involvement in voluntary and campaigning activities. Using data from a study of 1160 14-16 year-olds, it is shown that a considerable number of young people are involved in volunteering and campaigning, and also that these activities are influenced by gender, ethnicity, locality and the family. The article then explores the ways in which participation in volunteering and campaigning can promote the development of young people's political knowledge, awareness and understanding. It is demonstrated that involvement in these activities affects young people's political development in five ways, specifically in developing an understanding of the needs of different groups in society; a sense of influence over political and social events; a growing sense of party political differences and voting intent; reflection on social structures and processes; and acquiring skills useful in political campaigning. The policy implications of these findings are discussed.