Comparing American soccer dialogues: social media commentary Surrounding the 2014 US men’s and 2015 US women’s World Cup teams

Abstract

Mega sporting events such as the World Cup have been found to stimulate categorization of in-groups and out-groups among fans. While self-categorization correlates with gender, the sport of soccer also facilitates nationalistic categorization. The World Cup features nation vs. nation competition while making gender a non-variable as the men and women compete in separate tournaments in separate years. This study examined 33,529 tweets illustrating social media match commentary involving US teams and opponents on Twitter during the 2014 and 2015 World Cups. Results revealed US teams were more likely to be described in regard to attributions of success and failure, while opposition teams were more likely to receive personal and physical attributions. Conversely, no differences were found between US Men’s and Women’s teams in regard to characterizations of success and failure, but revealed the Women’s team was more likely to receive personal and physical characterizations.     

Recreational and developmental youth coach learning

Background: Within the field of coach development, previous research has ascertained that elite coaches learn through a variety of formal, non-formal, and informal sources. Little is known, however, about how coaches from different coaching contexts such as recreational and developmental learn to coach.

Purpose: The purpose of this study was to investigate how coaches from youth recreational and developmental coach contexts access and appreciate various coach learning sources, and whether there were any differences between these two contexts.

Data collection and analysis: Basketball and soccer coaches (N?=?758) from the two different contexts (recreational and developmental) were recruited through their respective sport organizations to participate in an online questionnaire about their coach learning. Specifically, they were asked about which learning sources they consulted and how helpful they found each source to be. The two groups were compared using chi-square and odd ratios, independent t-tests, and factorial ANOVA analyses.

Findings: Findings suggest that developmental coaches access a greater number of learning sources than do recreational coaches; however, for most sources both groups of coaches report the same level of helpfulness. Together, these findings suggest that the specific coaching context (recreational versus developmental) is an important consideration when examining coach learning.     

Variations in pre-service teachers’ career exploration and commitment to teaching

The purpose of this study was to investigate various career paths pre-service teachers explore and the processes of establishing their commitment to becoming a teacher. A mixed-methods design was employed; 326 surveys measured the levels of pre-service teachers’ career exploration and commitment using occupational identity status (achievement, moratorium, foreclosure, and diffusion), along with resilience and perceived instrumentality. Thirty-two interviews were followed to further explore detailed variations of their career decision-making journey. MANOVA analysis indicated significant differences for resilience and perceived instrumentality based on the four occupational identity statuses. Subsequent qualitative analysis identified various patterns where pre-service teachers differed in their entry motivation, negotiation for their career decision making, and the strength of their commitment to teaching. The findings of this study illuminate iterative and non-linear development of pre-service teachers’ professional identity.     

Robust sensorless observer-based adaptive sliding modes control of synchronous motors

Using a nonlinear complete order model of a synchronous motor, a robust second order sliding mode observer based control scheme is proposed. For that, a generalized super-twisting 3rd order observer is proposed for nonlinear systems. Based on the proposed observer scheme, a robust rotor flux observer is designed, then, a stator current observer is proposed using a classical super-twisting algorithm for extracting information of the rotor speed by means of the equivalent control method. The control design for the output tracking of a desired reference signal for the rotor speed is carried out with a classical super-twisting sliding mode algorithm and adaptive backstepping techniques. Due to the number of inputs, the flux in the excitation winding, and the direct component of the stator currents are also regulated. Numeric simulations predict a good performance of the closed-loop synchronous motor with parameter variations.     

Learning From Others: Developing Preservice Teachers’ Workplace Skills

Being a teacher requires the ability to work with difficult behaviors—not just of students and parents but also of colleagues. Preservice teachers need the opportunity to develop and practice collaboration and communication skills in school settings. This essay draws on research from organizational psychology to offer a framework for understanding challenges to workplace collaboration in school settings and strategies for developing these skills in preservice teachers.     

Threads of local continuity between centralized and decentralized causality: Transitional explanations for the behavior of a complex system

One line of research on student understanding of complex systems has tended to emphasize discontinuities between common misconceptions and relatively more sophisticated understandings. Other work has focused on instruction while acknowledging the existence of other ways of understanding complex systems, but less emphasis has been on examining the knowledge structures within these intermediate ways of understanding. This study takes a microgenetic approach to examining student’s explanations for the behavior of complex systems. Using the Knowledge-in-Pieces epistemological perspective, the analysis documents a continuity of reasoning patterns across less prototypically centralized and more prototypically decentralized (a more sophisticated causality) explanations while explaining the movement of sand dunes. The first analysis examines 31 interviews and shows that many reflected a general reasoning pattern that encompassing some combination of an initial centralized explanation, a final decentralized explanation, and transitional explanations. A second analysis examines a single student’s reasoning pattern and finds that the activation of relevant intuitive knowledge pieces (p-prims) and transitional explanations function as threads of continuity across the continuum of reasoning patterns. These findings suggest that students are able to exhibit a continuity of reasoning patterns across centralized to decentralized causality and are able to access productive intuitive knowledge about complex systems that are applicable to both the macro and micro levels of sand dune movement. Implications suggest that future research investigate these transitional explanations along with the mechanisms of shifting explanations that can account for this robust continuum.     

Developing a web-based toolkit for new mothers about postpartum pelvic floor health in collaboration with a professional medical association

Background:Few electronic resources are available for new mothers with concerns about changes in their pelvic floor following childbirth. Patients may struggle when seeking authoritative information regarding pelvic floor conditions online given the sensitivity of the topic as well as the inadvertent connection to obscene or demeaning content found online. A health sciences librarian partnered with the Motherhood and Pelvic Health Study, an interdisciplinary research group, to provide expert searching skills for a particularly challenging health condition that patients struggle to find useful information on.Case Presentation:A custom rubric was developed to evaluate existing information products, which included criteria for cultural sensitivity, conflicts of interest, and other red flags. This evaluation process enabled the research team to identify top-tier evidence-based materials that were culturally congruent. This collaborative evaluation process led to the creation of a web-based toolkit resource for new mothers concerned about changes in their pelvic floor. The toolkit connects women to pertinent information on a national health organization''s patient portal, supplemented by videos created by the team to serve as models of communication for women and health care providers.Conclusion:When developing a web-based resource, health sciences libraries can partner with research teams to find, evaluate, and disseminate information. Culturally congruent toolkits such as this one can improve access to health information and lead to improved health outcomes. To ensure that the information highlighted in toolkits is both culturally congruent and authoritative, research teams should form advisory committees and partner with relevant professional medical associations.     

Running patterns for male and female competitive and recreational runners based on accelerometer data

The purpose of this study was to classify runners in sex-specific groups as either competitive or recreational based on center of mass (CoM) accelerations. Forty-one runners participated in the study (25 male and 16 female), and were labeled as competitive or recreational based on age, sex, and race performance. Three-dimensional acceleration data were collected during a 5-minute treadmill run, and 24 features were extracted. Support vector machine classification models were used to examine the utility of the features in discriminating between competitive and recreational runners within each sex-specific subgroup. Competitive and recreational runners could be classified with 82.63 % and 80.4 % in the male and female models, respectively. Dominant features in both models were related to regularity and variability, with competitive runners exhibiting more consistent running gait patterns, but the specific features were slightly different in each sex-specific model. Therefore, it is important to separate runners into sex-specific competitive and recreational subgroups for future running biomechanical studies. In conclusion, we have demonstrated the ability to analyze running biomechanics in competitive and recreational runners using only CoM acceleration patterns. A runner, clinician, or coach may use this information to monitor how running patterns change as a result of training.     

Parent Support for Children’s Physical Activity: A Qualitative Investigation of Barriers and Strategies

Purpose: Parents play an important role in supporting children’s physical activity (PA) behavior. Parent PA support is a behavior unto itself that has been examined within the framework of an adapted theory of planned behavior (TPB). The primary purpose of this research was to identify key barriers to parent PA support to understand perceptions of control in relation to parent PA support. The second purpose of this research was to identify potential strategies to enhance parent PA support via enhanced perceived behavioral control. Method: Focus groups were conducted with parents (N = 21) of children aged 5 to 11 years old. A deductive content analysis was employed to analyze the data guided by an adapted TPB. Results: Themes related to barriers included parents’ motivation, affective experiences in providing PA support, and control factors (e.g., cost, time, safety concerns, screen). Themes related to potential strategies included opportunities for participation and improved affective experiences for parents, community parenting, and self-regulatory strategies. Conclusion: The identification of specific barriers to parent PA support can guide the development of interventions to facilitate parent PA support. Informational, programming, and self-regulatory training interventions may be useful in enhancing parent support.     

Evaluating the prediction of maximal heart rate in children and adolescents

In this study, we compared measured maximal heart rate (HRmax) to two different HRmax prediction equations [22 - age and 208 - 0.7(age)] in 52 children ages 7-17 years. We determined the relationship of chronological age, maturational age, and resting HR to measured HRmax and assessed seated resting HR and HRmax during a graded exercise test. Maturational age was calculated as the maturity offset in years from the estimated age at peak height velocity. Measured HRmax was 201 +/- 10 bpm, whereas predicted HRmax ranged from 199 to 208 bpm. Measured HRmax and the predicted value from the 208 - 0.7(age) prediction were similar but lower (p < .05) than the 220 - age prediction. Absolute differences between measured and predicted HRmax were 8 +/- 5 and 10 +/- 8 bpm for the 208 - 0.7 (age) and 220 - age equations, respectively, and were greater than zero (p < .05). Regression equations using resting HR and maturity offset or chronological age significantly predicted HRmax, although the R2 < .30 and the standard error of estimation (8.2-8.5) limits the accuracy. The 208 - 0.7(age) equation can closely predict mean HRmax in children, but individual variation is still apparent.