Changing throwing pattern: instruction and control parameter

The purpose of this study was to determine the effects of instruction and scaling up a control parameter (velocity of throw) on changes in throwing pattern. Sixty adult female throwers (ages 20-26 years) were randomly placed into one offour practice conditions: (a) scale up on velocity with no instruction, (b) maintain constant velocity with no instruction, (c) maintain constant velocity with instruction, and (d) scale up on velocity with instruction. Participants in each condition were required to practice throwing with the nondominant arm twice per week for 5 weeks (10 sessions). Practice consisted of 20 throws per session. Participants in conditions including instruction were encouraged to rotate the trunk in an attempt to take advantage of the order parameter. Analysis indicated that each condition improved relative to use of the open kinetic chain. However, participants who increased velocity were more likely to attain maximum use of the order parameter with less practice. Additionally, throwers who increased velocity without instruction attained an optimal pattern of complete distal lag one session earlier than those who increased velocity with instruction. Data indicated that for those conditions without instruction, hand to forearm lag (H-F lag) occurred before humeral lag. It was concluded that emphasizing proximal movement (trunk rotation) without increasing velocity does not result in a final pattern that uses H-F lag.     

Large-Scale Patterns of Entertainment Gratifications in Linguistic Content of U.S. Films

We count words in film subtitle files in an attempt to reveal morally relevant patterns of linguistic content. We argue that function words (e.g., pronouns, prepositions, conjunctions) should be positively associated with thought-provoking narrative forms. To test this hypothesis, we associate function words to aggregate measures of film viewership and appraisals. Results suggest that function words are negatively associated with measures of viewership but positively associated with appraisals. As such, our finding is consistent with the idea that function words are more likely to occur in narrative forms that audiences value more than they actually consume. We relate this finding to past research, which has shown the same pattern for hedonic versus meaningful entertainment gratifications. Discussion centers on implications for recent theorizing in this area.     

A day in the life: Interviews with three PE/VC librarians

ABSTRACT

This article is an interview with three librarians with extensive experience in private equity (PE) and venture capital (VC) research. Two of the participants work in a business research consultancy and one works in an academic library within a graduate business school. They shared their thoughts on what is unique or noteworthy about conducting research in these areas. Topics covered include: a typical workday; common research requests; information resources used; differences in research in private equity and venture capital; the information needs of entrepreneurs, students and professors; and challenges that arise in conducting PE and VC research.     

Emotions about Teaching about Human-Induced Climate Change

Global climate change is receiving increasing attention as a classroom topic. At the same time, research has shown that individuals have strong emotions about the topic. Emotions about controversial topics and individuals' dispositions toward knowledge have been shown to influence judgments about these topics. This study examined the relationships among preservice elementary and in-service secondary science teachers' emotions about and plausibility perceptions of climate change, background knowledge of weather and climate distinctions (a principle related to understanding climate change), and dispositions toward knowledge. Teachers' topic emotions (anger and hopelessness) were significant predictors of plausibility perceptions, with more anger associated with lesser plausibility and greater hopelessness associated with higher plausibility. Decisiveness—an urgent desire to reach closure—was also significantly related to plausibility perceptions with greater decisiveness associated with reduced plausibility perceptions. In-service secondary teachers who do not currently teach about climate change exhibited greater anger and decisiveness than preservice elementary teachers and in-service secondary teachers who do teach about climate change. Implications for climate literacy education are discussed.     

Generative mechanistic explanation building in undergraduate molecular and cellular biology*

ABSTRACT

When conducting scientific research, experts in molecular and cellular biology (MCB) use specific reasoning strategies to construct mechanistic explanations for the underlying causal features of molecular phenomena. We explored how undergraduate students applied this scientific practice in MCB. Drawing from studies of explanation building among scientists, we created and applied a theoretical framework to explore the strategies students use to construct explanations for ‘novel’ biological phenomena. Specifically, we explored how students navigated the multi-level nature of complex biological systems using generative mechanistic reasoning. Interviews were conducted with introductory and upper-division biology students at a large public university in the United States. Results of qualitative coding revealed key features of students’ explanation building. Students used modular thinking to consider the functional subdivisions of the system, which they ‘filled in’ to varying degrees with mechanistic elements. They also hypothesised the involvement of mechanistic entities and instantiated abstract schema to adapt their explanations to unfamiliar biological contexts. Finally, we explored the flexible thinking that students used to hypothesise the impact of mutations on multi-leveled biological systems. Results revealed a number of ways that students drew mechanistic connections between molecules, functional modules (sets of molecules with an emergent function), cells, tissues, organisms and populations.     

An overview of learning analytics

Learning analytics, the analysis and representation of data about learners in order to improve learning, is a new lens through which teachers can understand education. It is rooted in the dramatic increase in the quantity of data about learners and linked to management approaches that focus on quantitative metrics, which are sometimes antithetical to an educational sense of teaching. However, learning analytics offers new routes for teachers to understand their students and, hence, to make effective use of their limited resources. This paper explores these issues and describes a series of examples of learning analytics to illustrate the potential. It argues that teachers can and should engage with learning analytics as a way of influencing the metrics agenda towards richer conceptions of learning and to improve their teaching.     

Research Experiences of Staff within a Specialist UK Higher Education Institution: Challenges,opportunities and priorities

The study discussed here was based on a collective case approach involving a specialist UK higher education institution. Six individual interviews were carried out with a cross-sectional sample of the institution’s staff members. Additional information was gained through observations and examination of relevant documents. These data were interrogated with the purpose of exploring how the institution had made the transition from a teacher training college to a teaching-led higher education institution with a particular commitment to developing research capacity. This analysis yielded a number of key findings: first, the institution had experienced a cultural shift, with research forming a more noticeable profile; second, practitioner-oriented research was the dominant research endeavour; and third, there appeared to be an incomplete understanding of the potential of research to change a staff member’s career and teaching practice. The article concludes by giving consideration to the implications of the findings.     

Dual Credit/Dual Enrollment and Data Driven Policy Implementation

The use of dual credit has been expanding rapidly. Dual credit is a college course taken by a high school student for which both college and high school credit is given. Previous studies provided limited quantitative evidence that dual credit/dual enrollment is directly connected to positive student outcomes. In this study, predictive statistics were calculated using the generalized linear mixed model function in SPSS. For the final analysis, a two-level, propensity score weighted, multinomial logistic regression model was developed. Findings of this study are that even after controlling for selection bias, variation across high schools, and several education and socioeconomic status variables, dual credit/dual enrollment was significantly related to increased odds of enrolling at both four-year institutions and community colleges upon high school graduation. The opportunity presented by dual credit expansion and related policy recommendations are explored within the state and federal completion agenda context.