Methodological considerations for the 3D measurement of the X-factor and lower trunk movement in golf

It is believed that increasing the X-factor (movement of the shoulders relative to the hips) during the golf swing can increase ball velocity at impact. Increasing the X-factor may also increase the risk of low back pain. The aim of this study was to provide recommendations for the three-dimensional (3D) measurement of the X-factor and lower trunk movement during the golf swing. This three-part validation study involved; (1) developing and validating models and related algorithms (2) comparing 3D data obtained during static positions representative of the golf swing to visual estimates and (3) comparing 3D data obtained during dynamic golf swings to images gained from high-speed video. Of particular interest were issues related to sequence dependency. After models and algorithms were validated, results from parts two and three of the study supported the conclusion that a lateral bending/flexion-extension/axial rotation (ZYX) order of rotation was deemed to be the most suitable Cardanic sequence to use in the assessment of the X-factor and lower trunk movement in the golf swing. The findings of this study have relevance for further research examining the X-factor its relationship to club head speed and lower trunk movement and low back pain in golf.     

Implications and consequences of robots with biological brains

In this paper a look is taken at the relatively new area of culturing neural tissue and embodying it in a mobile robot platform—essentially giving a robot a biological brain. Present technology and practice is discussed. New trends and the potential effects of and in this area are also indicated. This has a potential major impact with regard to society and ethical issues and hence some initial observations are made. Some initial issues are also considered with regard to the potential consciousness of such a brain.     

Transfer of Training: An Updated Review and Analysis

This study updates the Baldwin and Ford (1988) review of the empirical articles published on training transfer. The updated review and analysis revolves around the four key limitations noted in the original review: (1) the criterion problem of how and when to measure training transfer, (2) the generalizability of results from training design studies, (3) the choice of which trainee characteristics to examine for their impact on transfer, and (4) the conceptualization and operationalization of work environment factors that can impact transfer. Twenty studies were found in the literature since the 1988 review on training transfer. An analysis of these studies found that progress has been made in addressing many of the limitations noted by Baldwin and Ford. This paper concludes with a discussion of future research directions for training transfer research relevant to each of the four areas of criterion measurement, training design, trainee characteristics, and work environment.     

Reproduced and Emergent Genres of Communication on the World Wide Web

The World Wide Web is growing quickly and being applied to many new types of communications. As a basis for studying organizational communications, Yates and Orlikowski (1992; Orlikowski & Yates, 1994) proposed using genres. They defined genres as "typified communicative actions characterized by similar substance and form and taken in response to recurrent situations" (Yates & Orlikowski, 1992, p.299). They further suggested that communications in a new media would show both reproduction and adaptation of existing communicative genres as well as the emergence of new genres. We studied these phenomena on the World Wide Web by examining 1000 randomly selected Web pages and categorizing the type of genre represented. Although many pages recreated genres familiar from traditional media, we also saw examples of genres being adapted to take advantage of the linking and interactivity of the new medium and novel genres emerging to fit the unique communicative needs of the audience. We suggest that Web-site designers consider the genres that are appropriate for their situation and attempt to reproduce or adapt familiar genres.     

Kant's disputation of 1770: the dissertation and the communication of knowledge in early modern Europe

Kant's disputation of 1770 at his inauguration as the metaphysics professor at K?nigsberg is a good example of the nature of the early modern dissertation and its use as a means of communicating knowledge. The public disputation played an important part in the teaching, examination, publication and ceremonial life of the medieval university. Originally prepared as a text for the public disputation, the dissertation communicated the teachings of individual scholars and institutions and was used by eminent early modern scholars to introduce their ideas and findings. Kant's use of his 1770 disputation also reveals the different channels of communication, both private and public, that paid close attention to knowledge published in dissertations.     

Do kindergarten teachers possess adequate knowledge of basic language constructs to teach children to read English as a foreign language?

Annals of Dyslexia - The contribution of teacher knowledge to learning outcomes at the beginning stages of literacy acquisition is of growing concern because the ability to provide quality...     

Children’s Appraisals of Gender Nonconformity: Developmental Pattern and Intervention

Gender-nonconforming (GN) children are often perceived less positively, which may harm their well-being. We examined the development of such perceptions and an intervention to modify them. Chinese children’s appraisals were assessed using multiple measures (verbal responses, sharing, and rank order task) after viewing vignettes of gender-conforming (GC) and GN hypothetical peers. In Study 1, children (N = 210; 4-, 5-, 8-, and 9-year-olds) were less positive toward GN than GC peers, especially if they were older or if the peers were boys. In Study 2 (N = 211, 8- and 9-year-olds), showing children exemplars of GN peers who displayed positive and GC characteristics subsequently reduced bias against gender nonconformity. These findings inform strategies aimed at reducing bias against gender nonconformity.     

Sluggish cognitive tempo and impairment: The role of lifestyle factors

The purpose of this study was to assess whether sluggish cognitive tempo (SCT) behaviors were associated with a unique impairment profile for college students after accounting for lifestyle (sleep, substance use, health) and mental health factors (attention-deficit/hyperactivity disorder [ADHD], anxiety, depression). A general sample of 910 undergraduate students completed several measures via online survey. Most participants were female (64.9%) and were Caucasian (60.7%), with an average age of 19.41 years. Students who endorsed elevated SCT behaviors reported significantly more impairment compared to students who reported low levels of SCT behaviors. However, regression analyses suggested that SCT behaviors do not account for significant amounts of unique impairment after controlling for related mental health (ADHD, anxiety, depression) and lifestyle variables (sleep, health, substance use). The lack of impairment associated uniquely with SCT behaviors suggests that SCT may serve as a construct underlying many variables, rather than standing independently as a distinct disorder.