Three-dimensional kinematic differences between the preferred and non-preferred limbs during maximal instep soccer kicking     

J. Sinclair  D. Fewtrell  P. J. Taylor  S. Atkins  L. Bottoms  S. J. Hobbs 《Journal of sports sciences》2014,32(20):1914-1923

Abstract

The current investigation aimed to determine whether there are differences in ball velocity and 3D kinematics when performing maximal kicks with the dominant and non-dominant limbs. Seventeen male academy soccer players performed maximal speed place kicks with their dominant and the non-dominant limbs. The 3D kinematics of the lower extremities were obtained using a 10-camera motion capture system operating at 500 Hz. Hip, knee and ankle joint kinematics were quantified in the sagittal, coronal and transverse planes and then contrasted using paired t-tests. Significantly higher ball velocities were obtained with the dominant limb. Foot linear velocity and knee extension velocity at ball contact were also found to be significantly greater in the dominant limb. That reduced ball velocities were observed between kicking limbs highlights the potential performance detriments that may occur when kicking with the non-dominant limb; thus, it is recommended that additional bilateral training be undertaken in order to attenuate this and improve overall kicking performance.  相似文献   

The Meanings and Problems of Contemporary Creative Work     

Stephanie Taylor 《Vocations and Learning》2012,5(1):41-57

Contemporary creative work has emerged as a focus of international academic and policy attention since the late 1990s, the period in which the cultural and creative industries achieved recognition as a highly successful new sector. Commentators have noted the problems faced by many contemporary creative workers because of the precarious and ill-paid nature of much of the work in the sector. This article proposes that associations with the creative arts provide an important resource for the occupational identification for these workers, yet also a significant source of conflicts. Analyses of interviews with creative workers who were recruited from the students and alumni of UK art colleges (Higher Education Institutions in Arts and Design) suggest that meanings derived from the creative arts and taken up in educational contexts and elsewhere continue to shape these workers’ understandings of creative work, including the process of creative working, the trajectory of a creative career, and what constitutes success in creative work. The importance of these meanings is explored and detailed through a consideration of participants’ identifications using a narrative-discursive analysis of interview data.  相似文献   

Global Status, Intra-Institutional Stratification and Organizational Segmentation: A Time-Dynamic Tobit Analysis of ARWU Position Among U.S. Universities     

Brendan Cantwell  Barrett J. Taylor 《Minerva》2013,51(2):195-223

Ranking systems such as The Times Higher Education’s World University Rankings and Shanghai Jiao Tong University’s Academic Rankings of World Universities simultaneously mark global status and stimulate global academic competition. As international ranking systems have become more prominent, researchers have begun to examine whether global rankings are creating increased inequality within and between universities. Using a panel Tobit regression analysis, this study assesses the extent to which markers of inter-institutional stratification and organizational segmentation predict global status among US research universities as measured by position in ARWU. Findings indicate some support that both inter-institutional stratification and organizational segmentation predict global status.  相似文献   

Cutting Class Harms Grades     

Lewis A. Taylor III 《Decision Sciences Journal of Innovative Education》2012,10(1):49-61

An accessible business school population of undergraduate students was investigated in three independent, but related studies to determine effects on grades due to cutting class and failing to take advantage of optional reviews and study quizzes. It was hypothesized that cutting classes harms exam scores, attending preexam reviews helps exam scores, taking optional exam preparation quizzes helps exam scores, and earlier exam scores in the semester predict later exam scores. Using an objective measurement method of actual events and actual exam scores instead of the predominant nonexperimental survey method most often used, it was found that all hypotheses were significant and supported in the predicted direction. Implications for professors and students are provided, revealing that cutting class, missing preexam reviews, and ignoring chapter quizzes effects are real and they matter.  相似文献   

The Role of Teacher Efficacy in Strengthening Classroom Support for Preschool Children with Disabilities Who Exhibit Challenging Behaviors     

Deborah H. Gebbie  Deborah Ceglowski  Linda K. Taylor  Jill Miels 《Early Childhood Education Journal》2012,40(1):35-46

Challenging student behaviors are a prominent factor in the development of teacher stress and burnout. When classroom-based teachers of preschool children with disabilities were surveyed to identify their training needs in one North Carolina county, the most frequent request was how to address behavior challenges of preschool children with disabilities. This study examined how instructional support to teachers of preschool children with disabilities and challenging behaviors affected three teachers’ classroom practices. The teachers received training and mentoring in classroom behavior management strategies and engaged in an online community of learners discussion group. Interviews and interactions from an online learning community were used to disclose whether the participants had implemented effective intervention strategies in their classrooms following the training. Teachers felt more competent in managing challenging behaviors after the online interaction with their colleagues. Teachers’ online interactions were a highly effective way to impact teacher efficacy. Therefore, special education preschool programs should consider providing more opportunities for the teachers to build their own learning communities to interact and support one another.  相似文献   

How do Revenue Variations Affect Expenditures Within U.S. Research Universities?     

Larry L. Leslie  Sheila Slaughter  Barrett J. Taylor  Liang Zhang 《Research in higher education》2012,53(6):614-639

Using Integrated Postsecondary Education Data System (IPEDS) figures on the 96 Research Extensive Institution in academic year 2007?C2008, we employ panel data from academic year 1984?C1985 to 2007?C2008 to identify revenue-expenditure relationships. Although we consider a wide range of functional expenditure categories, we focus our analysis on instructional and research expenditures because these categories tie most closely to the core missions of research universities. Results suggest tight relationships between some revenue and expenditure categories for some institutions. For public universities, these relationships tend to follow expected paths. For example, a large proportion of tuition revenues tend to be spent in the functional category of instruction. Private universities evidence a somewhat different pattern, with revenues generally expended in the pursuit of merit aid and research. This suggests that private universities strategically deploy revenues from a wide variety of sources to secure particular students and to conduct research activities. However, the ways in which universities and IPEDS classify faculty work raises some questions about the transparency of various categories, and suggests that some current conceptions of how revenues are expended on research and instruction functions may be less than straightforward.  相似文献   

The development of children's ability to fill the gaps in their knowledge by consulting experts     

Aguiar NR  Stoess CJ  Taylor M 《Child development》2012,83(4):1368-1381

This research investigated children's ability to recognize gaps in their knowledge and seek missing information from appropriate informants. In Experiment 1, forty-five 4- and 5-year-olds were adept in assigning questions from 3 domains (medicine, firefighting, and farming) to corresponding experts (doctor, firefighter, or farmer). However, when given the options of answering the same questions themselves or assigning them to an expert (Experiment 2), only 6-year-olds were consistently able to recognize when they did not know answers and then assign test questions correctly. Four- and 5-year-olds tended to overestimate their own knowledge or assign questions to the wrong expert. This result was replicated in Experiment 3, in which 5-year-olds were given incentives for correct answers.  相似文献   

Relationships between students’ experiences of learning in an undergraduate internship programme and new graduates’ experiences of professional practice     

Susan M. Matthew  Rosanne M. Taylor  Robert A. Ellis 《Higher Education》2012,64(4):529-542

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Child maltreatment, subsequent non-suicidal self-injury and the mediating roles of dissociation, alexithymia and self-blame     

S Swannell  G Martin  A Page  P Hasking  P Hazell  A Taylor  M Protani 《Child abuse & neglect》2012,36(7-8):572-584

ObjectiveAlthough child maltreatment is associated with later non-suicidal self-injury (NSSI), the mechanism through which it might lead to NSSI is not well understood. The current retrospective case–control study examined associations between child maltreatment and later NSSI, and investigated the mediating roles of dissociation, alexithymia, and self-blame.MethodsParticipants were 11,423 Australian adults (response rate 38.5%), randomly selected from the Australian Electronic White Pages, aged between 18 and 100 (M = 52.11, SD = 16.89), 62.2% female. Data were collected via telephone interviewing. Main outcome measures were reported history of child maltreatment (sexual abuse, physical abuse, neglect) and reported 12-month NSSI. Dissociation, alexithymia, and self-blame were examined as potential mediating variables in the relationship between child maltreatment and later NSSI. All analyses were conducted using logistic regression and adjusted for age and psychiatric diagnosis.ResultsResults differed by gender. Compared to no child maltreatment, physical abuse (OR 2.75, 95% CI 1.68–4.51) and neglect (OR 2.56, 95% CI 1.65–3.99) independently increased the odds of NSSI among females. Physical abuse (OR 2.69, 95% CI 1.44–5.03) increased the odds of NSSI among males. Sexual abuse did not independently increase the odds of NSSI for males or females. For females, self-blame had the greatest effect on the child maltreatment–NSSI relationship (OR decreased by 14.6%, p < .000), although dissociation and alexithymia also partially mediated the relationship. For males, dissociation had the greatest effect (OR decreased by 12.9%, p = .003) with self-blame also having a relatively strong effect.ConclusionsThe results indicate that child maltreatment, and in particular, physical abuse, is strongly associated with the development of subsequent NSSI and may be partially mediated by dissociation, alexithymia, and self-blame for females and dissociation and self-blame for males. Altering attributional style (through cognitive therapy or emotion focussed therapy) and improving the capacity to regulate emotions (through dialectical behaviour therapy) may contribute to reduction or cessation of NSSI.  相似文献   

An investigation into the application of ensemble learning for entailment classification     

Niall Rooney  Hui Wang  Philip S. Taylor 《Information processing & management》2014

Textual entailment is a task for which the application of supervised learning mechanisms has received considerable attention as driven by successive Recognizing Data Entailment data challenges. We developed a linguistic analysis framework in which a number of similarity/dissimilarity features are extracted for each entailment pair in a data set and various classifier methods are evaluated based on the instance data derived from the extracted features. The focus of the paper is to compare and contrast the performance of single and ensemble based learning algorithms for a number of data sets. We showed that there is some benefit to the use of ensemble approaches but, based on the extracted features, Naïve Bayes proved to be the strongest learning mechanism. Only one ensemble approach demonstrated a slight improvement over the technique of Naïve Bayes.  相似文献