An Analysis of the Relative Influences of Fahrenheit 9/11 and Presidential Debate Viewing on Shifting Confidence in President George W. Bush     

R. Lance Holbert  Glenn J. Hansen  Steve Mortensen  Scott E. Caplan 《Communication Research Reports》2013,30(3):209-216

This study analyzes the influence of Michael Moore's Fahrenheit 9/11 in coordination with presidential debate viewing on the outcome variable of confidence in George W. Bush's policy positions. In addition, the combined influence of these competing persuasive appeals is assessed across three political ideology groups: liberals, moderates, and conservatives. There is a statistically significant experimental stimulus-by-political ideology interaction, with Bush making substantial gains among political moderates who viewed Moore's film prior to a Bush-Kerry debate. The study also reveals similar patterns of influence for liberals and conservatives.  相似文献   

Foot strike patterns and ground contact times during high-calibre middle-distance races     

Phil Hayes  Nicholas Caplan 《Journal of sports sciences》2013,31(12):1275-1283

Abstract

The aims of this study were to examine ground contact characteristics, their relationship with race performance, and the time course of any changes in ground contact time during competitive 800 m and 1500 m races. Twenty-two seeded, single-sex middle-distance races totalling 181 runners were filmed at a competitive athletics meeting. Races were filmed at 100 Hz. Ground contact time was recorded one step for each athlete, on each lap of their race. Forefoot and midfoot strikers had significantly shorter ground contact times than heel strikers. Forefoot and midfoot strikers had significantly faster average race speed than heel strikers. There were strong large correlations between ground contact time and average race speed for the women's events and men’s 1500 m (r = ?0.521 to ?0.623; P < 0.05), whereas the men's 800 m displayed only a moderate relationship (r = ?0.361; P = 0.002). For each event, ground contact time for the first lap was significantly shorter than for the last lap, which might reflect runners becoming fatigued.  相似文献   

A mathematical model of the oar blade – water interaction in rowing     

Nicholas Caplan  Trevor Gardner 《Journal of sports sciences》2013,31(9):1025-1034

Abstract

Our aim was to present a mathematical model of rowing and sculling that allowed for a comparison of oar blade designs. The relative movement between the oar blades and water during the drive phase of the stroke was modelled, and the lift and drag forces generated by this complex interaction were determined. The model was driven by the oar shaft angular velocity about the oarlock in the horizontal plane, and was shown to be valid against measured on-water mean steady-state shell velocity for both a heavyweight men's eight and a lightweight men's single scull. Measured lift and drag force coefficients previously presented by the authors were used as inputs to the model, whichs allowed for the influence of oar blade design on rowing performance to be determined. The commonly used Big Blade, which is curved, and it's flat equivalent were compared, and blade curvature was shown to generate a 1.14% improvement in mean boat velocity, or a 17.1-m lead over 1500 m. With races being won and lost by much smaller margins than this, blade curvature would appear to play a significant role in propulsion.  相似文献   

Survivors: How to keep your best people on board after downsizing     

Gayle Caplan  Mary Teese  Judith Christofferson 《Performance Improvement》2002,41(2):44-47

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Preschoolers' Differential Conflict Behavior with Friends and Acquaintances     

Jo Ellen Vespo  Marlene Caplan 《Early education and development》1993,4(1):45-53

This study examined the nature of social conflict occurring spontaneously during children's play. Preschoolers' (mean age = 53.9 months) differential conflict behavior with their friends and acquaintances was analyzed by use of relationship status as a within-subjects factor. Children behaved differently when interacting with their friends than they did with acquaintances. Conciliatory gestures (e.g., compromise, apology) were used more often with friends than with acquaintances. Conciliatory gestures were more likely than yields to lead to peaceful outcomes. However, yields were used most often by the children. Yet, no matter what resolution strategy was used, friends were more likely to remain together after conflict than acquaintances were. Because friendships are important to them, children must learn ways to maintain interaction despite conflict. Conflict resolution strategies among peers begin to emerge in the preschool years, first within friendly relationships. It is suggested that rather than using direct intervention, teachers should indirectly facilitate the development of such strategies.  相似文献   

Conflict and Its Resolution in Small Groups of One- and Two-Year-Olds     

Marlene Caplan  JoEllen Vespo  Jan Pedersen  Dale F. Hay 《Child development》1991,62(6):1513-1524

48 1- and 48 2-year-olds were observed in groups of 3 for 25 min on 2 consecutive days, once with ample resources and once with scarce resources. The triads were composed of either 2 girls and a boy or 2 boys and a girl, and duplicate copies of toys were available for half the groups. Their conflicts contained interpersonal features and were more affected by social influences than by the availability of resources. Contrary to expectations, scarcity of resources did not result in increased conflict. In fact, 2-year-olds were more likely to resolve conflict by sharing when toys were scarce. The provision of duplicates decreased the probability of conflict, but many conflicts occurred even when a duplicate was easily accessible. The form of conflict depended on the children's age and the gender composition of the group. Older children and groups dominated by boys, relative to younger children and groups dominated by girls, were less likely to use force and more likely to resolve disputes in prosocial ways. Taken together, these findings provide further evidence for the social nature of conflict in the first few years of life.  相似文献   

DEFEATING THE ENEMY WITHIN: EXPLORING THE LINK BETWEEN HOLOCAUST EDUCATION AND THE ARAB/ISRAELI CONFLICT   总被引：1，自引：1，他引：0  

Ilan Gur‐Ze'ev 《Religious education (Chicago, Ill.)》2013,108(4):373-401

This paper exposes the sources of anti‐Jewish education in Zionist thought and praxis by examining an unsuccessful attempt to educate for sensitivity to the suffering of the others in Israel. I argue that by conceiving the “Jew” as the ultimate victim of human history, and instrumentalizing Holocaust memory in the service of Israeli ethnocentrism, this form of education conflicts with central themes of Jewish tradition and leads to violent oppression of the Palestinian “other.” This double violence, to Jewish authenticity and the Palestinian “other,” can only be overcome by a reassessment of the transcendent dimension required for a geniune radical education.  相似文献   

A fluid dynamic investigation of the Big Blade and Macon oar blade designs in rowing propulsion     

Nicholas Caplan  Trevor N. Gardner 《Journal of sports sciences》2013,31(6):643-650

Abstract

The purpose of this investigation was to examine the fluid dynamic characteristics of the two most commonly used oar blades: the Big Blade and the Macon. Scaled models of each blade, as well as a flat Big Blade, were tested in a water flume using a quasi-static method similar to that used in swimming and kayaking research. Measurement of the normal and tangential blade forces enabled lift and drag forces generated by the oar blades to be calculated over the full range of sweep angles observed during a rowing stroke. Lift and drag force coefficients were then calculated and compared between blades. The results showed that the Big Blade and Macon oar blades exhibited very similar characteristics. Hydraulic blade efficiency was not therefore found to be the reason for claims that the Big Blade could elicit a 2% improvement in performance over the Macon. The Big Blade was also shown to have similar characteristics to the flat plate when the angle of attack was below 90°, despite significant increases in the lift coefficient when the angle of attack increased above 90°. This result suggests that the Big Blade design may not be completely optimized over the whole stroke.  相似文献   

Higher education in Israel: an historical perspective   总被引：1，自引：1，他引：0  

S. Ilan Troen 《Higher Education》1992,23(1):45-63

Through an analysis of the origins and development of Israel's universities, the paper illuminates the Israeli variation of the wide-spread phenomenon of transfer and adaptation of western concepts of higher education to developing countries. Following the examples of the German university and the use of scientific research in the German colonization effort, the World Zionist Organization supported the establishment the Technion (opened 1924) and the Hebrew University (opened 1925). From the beginning there has been a strong utilitarian emphasis which is examined in three areas: contributions of higher education in settling the land and developing the economy, in the regeneration and redefinition of a national culture, and in enhancing national security. It is further suggested how an emphasis on utlity as defined by perceived national needs has contributed to the structure of institutions, defining areas of research and shaping the curriculum. It is argued that even with independence (1948) and the enormous expansion of Israeli higher education since the 1960s in size and number of universities, continuities with the pre-State practical ethos still dominate. Continuities have also been maintained in governance and finance for, unlike other national systems, foreign citizens still play a significant role in the management and support of Israeli universities. This phenomenon may even contribute to maintaining well-established patterns of service since it is the opportunity to participate in nation-building that continues to excite the imagination and define the responsibility of Diaspora Jewry which initially defined the purposes of Israeli higher education.  相似文献   

The Quality of Online and Offline Relationships: The Role of Multiplexity and Duration of Social Relationships     

Gustavo Mesch  Ilan Talmud 《The Information Society》2006,22(3):137-148

Recent studies have shown that adolescents use the Internet not only to maintain social relationships with distant relatives and friends but also to create new relationships online; some of these friendships become integrated into their social circle. Research has focused mainly on the effect of the Internet on existing relationships or the nature of online-only ties, so studies comparing the quality of online and face-to-face relationships are missing. The goal of this study is to bridge this gap. In keeping with previous studies on social association, we argue that the quality of social relationships is dependent on duration and diversity of topics and activities carried together. Time is important, as it facilitates the development of a collective shared history and identity. Intimacy develops through the participation in shared activities and discussion of diverse issues of personal concern. Using a representative sample of the adolescent population in Israel, we find that closeness to a friend is a function of social similarity, content and activity multiplexity, and duration of the relationships. Friendships originated in the Internet are perceived as less close and supportive because they are relatively new and online friends are involved in less joint activities and less topics of discussion. The implications of the findings are discussed.  相似文献