Correlations between serum and salivary hormonal concentrations in response to resistance exercise     

Cadore E  Lhullier F  Brentano M  Silva E  Ambrosini M  Spinelli R  Silva R  Kruel L 《Journal of sports sciences》2008,26(10):1067-1072

The aim of present study was to examine the relationships between serum and salivary values of free testosterone, dehydroepiandrosterone, and cortisol before and after a session of resistance exercise. Twenty-eight healthy men (mean age 40 years, s = 4) participated in the present study. Serum and salivary samples were collected at rest and after a multiple-sets resistance exercise protocol, of approximately 25 minutes duration. Concentrations of free testosterone, dehydroepiandrosterone, and cortisol were measured using radioimmunoassay kits. No significant correlation was observed between serum free testosterone and salivary testosterone (r = 0.22 to 0.26, P > 0.05). Serum cortisol was significantly correlated with salivary cortisol before (r = 0.52, P = 0.005) and after (r = 0.62, P = 0.001) the exercise protocol. Serum and salivary concentrations of dehydroepiandrosterone were significantly correlated before (r = 0.68, P < 0.001) and after (r = 0.7, P < 0.001) exercise. The results of the present study suggest that even under exercise conditions, the salivary values of cortisol and dehydroepiandrosterone can reflect the behaviour of these hormones in blood. However, further studies are necessary to verify if salivary testosterone reflects the behaviour of serum free testosterone during resistance exercise.  相似文献   

Guideposts and Roadblocks to the Career-Long Scholarly Engagement of Physical Education Teacher Education Faculty     

Catherine P. Berei  Erica Pratt  Melissa Parker  Kevin Shephard  Tanjian Liang  Udon Nampai 《Research quarterly for exercise and sport》2017,88(4):455-467

Purpose: Scholarship is essential for the growth and development of the physical education field. Over time, scholarship expectations have changed, forcing faculty members to alter time spent for research, teaching, and service. Social-cognitive career theory (SCCT) presents a model for understanding performance and persistence in an occupational environment. The interconnected aspects of SCCT have different emphasis related to self-efficacy, outcome expectations, or personal goals pursuit. This study explored physical education teacher education (PETE) faculty members’ continuing engagement in scholarly activity through SCCT. Method: Data collection included interviews with 9 senior PETE faculty members who met the criteria for “productive scholars over time.” Curriculum vitae were collected to verify productivity. Results: Data analysis revealed guidepost themes that included collaborating, finding balance, defining a research process, and maintaining a strong work ethic. Roadblocks encountered included other obligations and lack of support for research. Conclusions: Participants demonstrated strong self-efficacy; held high, positive expectations for success; and set very specific, clear, and deliberate goals. Participant behavior was moderated by their personal attributes (capacity to build relationships, set goals, and maintain interest and passion) and was tempered by the environments in which they worked. Fostering similar behaviors has the potential to guide future and current PETE faculty members in creating supportive and encouraging atmospheres for sustained productivity. The lack of literature relating to this topic warrants the need for more research exploring the influential factors and benefits gained from sustained scholarly productivity over time for PETE faculty members.  相似文献   

Eleventh- and Twelfth-Century Similarities in the Norman Influence,Contact and “Conquests” of Sicily,Southern Italy and England     

Melissa Sartore 《Al-Masaq: Islam & the Medieval Mediterranean》2013,25(2):184-203

The establishment of the so-called “Norman World” is a debated phenomenon. The influence of the Normans can be found throughout Europe in matters of politics, warfare, and cultural interaction. The empire established by the Normans from the tenth through the thirteenth centuries was based upon the fighting prowess and military might of a people led by notable men such as William the Conqueror and Robert Guiscard. The similarities and differences between the Norman conquests of the eleventh century reveal reciprocity in contact, influence, and exchange among Norman populations. Similarly, the autonomy and distinctness of Norman populations from England to the Mediterranean remained. This article explores the extent of Norman contact, areas of influence and methods of exchange during the most active Norman conquests of the Middle Ages.  相似文献   

Subverting visual discourses of gender and geography: Kent Monkman's revised iconography of the American West     

Elston MM 《Journal of American culture (Malden, Mass. : 2003)》2012,35(2):181-190

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War,Genocide, and Justice: Cambodian American Memory Work Cathy J. Schlund‐Vials. Minneapolis: University of Minnesota Press, 2012.     

Melissa Phruksachart 《Journal of American culture (Malden, Mass. : 2003)》2014,37(1):123-124

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Regional creative industries policy-making under New Labour     

David Lee  David Hesmondhalgh  Kate Oakley  Melissa Nisbett 《Cultural Trends》2014,23(4):217-231

This article analyses creative industries policy in the English regions under New Labour (1997–2010). It examines the ideas behind regional creative industries policies (RCIPs) and their implementation. Focusing on the activities of the English regional development agencies, the primary bodies responsible for the implementation of creative industries policy in the British regions, the article places regional cultural policy during the New Labour period within its broader political, social and economic contexts. It explains and evaluates New Labour's RCIPs, arguing that creative industries policy at the regional level changed over the course of New Labour's three terms of office, becoming increasingly economistic at the expense of a more social democratic vision of regional equality and democracy. We identify three issues that were problematic for New Labour's RCIP: a reliance on the idea of “clusters”, commercialisation and shifting regional governance.  相似文献   

Within‐High‐School Versus Across‐High‐School Scaling of Admissions Assessments: Implications for Validity and Diversity Effects          下载免费PDF全文

Jack W. Kostal  Paul R. Sackett  Nathan R. Kuncel  Philip T. Walmsley  Melissa S. Stemig 《Educational Measurement》2017,36(1):39-46

Previous research has established that SAT scores and high school grade point average (HSGPA) differ in their predictive power and in the size of mean differences across racial/ethnic groups. However, the SAT is scaled nationally across all test takers while HSGPA is scaled locally within a school. In this study, the researchers propose that this difference in how SAT scores and HSGPA are scaled partially explains differences in validity and subgroup differences. Using a large data set consisting of 170,390 students each of whom matriculated at one of 114 separate colleges, the researchers find that awarding SAT scores by ranking SAT within a high school generally results in substantial reduction in the size of subgroup mean differences for this predictor. However, validity for predicting first‐year GPA is also reduced by a small amount. Conversely, placing HSGPA onto a nationally normed metric through the use of multiple regression procedures results in a moderate increase in the size of subgroup mean differences, while also producing a small increase in validity. Taken together, these findings suggest that differences in predictor scaling can partially explain differences in the size of subgroup mean differences between HSGPA and SAT scores and have implications for predictive power.  相似文献   

Club Identity/Class Identity: Negotiations of Popular Memory by Followers of the Australian Football League     

Melissa Walsh 《国际体育史杂志》2015,32(13):1593-1610

A lot of the fun in contemporary sports talk relies on shared understandings about the culture of competitive sporting teams. The purpose of this paper is to explore how often humorous discourses are negotiated by sport fans as they narrate a sense of their own history and identity as followers of professional sports teams. This analysis draws on research conducted with followers of the Australian Football League (AFL), which included 21 life story interviews. As an oral historian, I was interested in how individuals negotiated popular ideas about Australian football in the ‘composition’ of their memories. This attention to the dynamic between the public and personal is described as a ‘popular memory approach’ to oral history. In this paper I explore the place of class in popular understandings about AFL club cultures. I argue that the role class plays in popular discourse around sporting club cultures is revealed more fully when we examine the ways in which individuals – in this case followers of AFL teams – make sense of it.  相似文献   

Exploring the International Student Experience: Providing Insight Through a Mixed-Methods Approach     

Melissa Burel  Marlee Graser  Sarah Park 《图书馆管理杂志》2019,59(2):149-174

Southern Illinois University Edwardsville (SIUE) has seen a dramatic increase in international student enrollment in the last four years. To serve this rising population effectively, librarians at SIUE created a research study to explore the information needs and academic experiences of international students at SIUE. The study employed a mixed-methods approach including a survey as well as in-depth interviews and photo diaries. The results provide insight into international students’ library use and academic life.  相似文献   

Scientific Inquiry Self-Efficacy and Computer Game Self-Efficacy as Predictors and Outcomes of Middle School Boys’ and Girls’ Performance in a Science Assessment in a Virtual Environment     

Bergey  Bradley W.  Ketelhut  Diane Jass  Liang  Senfeng  Natarajan  Uma  Karakus  Melissa 《Journal of Science Education and Technology》2015,24(5):696-708

Journal of Science Education and Technology - The primary aim of the study was to examine whether performance on a science assessment in an immersive virtual environment was associated with changes...  相似文献