Comparison of sequence of trunk and arm motions between short and long official distance groups in javelin throwing

The purpose of this study was to determine the effects of sequences of the trunk and arm angular motions on the performance of javelin throwing. In this study, 32 male and 30 female elite javelin throwers participated and were separated into a short official distance group or a long official distance group in each gender. Three-dimensional coordinates of 21 body landmarks and 3 marks on the javelin in the best trial were collected for each subject. Joint center linear velocities and selected trunk and arm segment and joint angles and angular velocities were calculated. The times of the initiations of the selected segment and joint angular motions and maximum angular velocities were determined. The sequences of the initiations of the selected segment and joint angular motions and maximum angular velocities were compared between short and long official distance groups and between genders. The results demonstrated that short and long official distance groups employed similar sequences of the trunk and arm motions. Male and female javelin throwers employed different sequences of the trunk and arm motions. The sequences of the trunk and arm motions were different from those of the maximal joint center linear velocities.     

CS–US interval determines the transition from overshadowing to potentiation with flavor compounds

The present series of five flavor aversion experiments with rat subjects examined compound conditioning at varying CS-US intervals. Using a taste-taste design, Experiments 1A and 1B demonstrated overshadowing at a 0-min CS-US interval and potentiation at a 120-min CS-US interval, and these effects occurred with both tastes of the compound. Experiment 2 showed that the aversion to a single element is reduced when the CS-US interval is increased to 120 min, but the aversion for a compound taste is not. Experiments 3A and 3B explored odor + taste compound conditioning; the results demonstrated odor potentiation across the trace interval and a transition from taste overshadowing to taste potentiation. Collectively, the data show that the change from overshadowing to potentiation was not due to changes in the aversions produced by compound conditioning but, instead, was due to a more rapid loss of conditionability across a trace interval prior to the US in single-element conditioning. These experiments suggest that following compound conditioning, the aversion to each element represents generalization decrement from the configured compound, but the designation of overshadowing or potentiation actually depends on the status of conditioning in the single-element control.     

How age and race affect the frequency,timing, and content of conversations about race with children

Anti-racist efforts require talking with children about race. The present work tested the predictors of U.S. adults' (N = 441; 52% female; 32% BIPOC participants; M_age = 35 years) conversations about race with children across two timepoints in 2019. Approximately 60% of adult participants talked to their children (3–12 years) about race during the preceding week; only 29% talked to other adults about race during the same period. This paper describes the content and predictors of conversations about race, revealing how conversations differ depending on the participant's race, a child's age, and whether the conversation occurs with children or another adult. These data have important implications for theorizing about when, why, and how adults actually talk about race with children and adults.     

Desirable organisational masculinities: competition and entrepreneurialism in schools of construction in further education colleges

This article presents findings from a study of heads of construction schools within 14 further education colleges. Moving from a culture of hyper-masculinity, of tough, dirty work, construction lecturers and managers have to renegotiate their identity and work practices to become congruent with the inclusiveness of further education, leaving behind the aggression and discrimination embedded within the discourses and behaviours of the building site. However, they do bring with them desirable organisational masculinities, competitiveness and entrepreneurialism, that are highly valued by the contemporary college. The article presents findings of competitive and entrepreneurial practices in schools of construction and discusses the key role heads of construction play in bringing together multiple masculinities for the benefit of their school and their learners.     

Frequency range size and the frequency range constraint in auditory perception by European starlings (Sturnus vulgaris)

We report data bearing on the ability of European starlings to generalize a serial auditory pitch pattern discrimination from one frequency range to another. In earlier research (e.g., Hulse & Cyrix, 1985), European starlings failed to generalize such a discrimination from one 1-octave range of frequencies to another 1-octave range above or below the initial training range. The starlings thus demonstrated a hitherto unknown phenomenon, thefrequency range constraint. In the present research, we first explored the frequency limits over which the range constraint might hold. The constraint was obtained after initial training in both a narrow (1÷2-octave) and a wide (3-octave) training range. The latter range encompasses a substantial portion of the entire frequency range audible to starlings. Therefore, the constraint is independent of the size of the training range. No known principles of stimulus discrimination or generalization account for the constraint. We also obtained further evidence on starlings’ sensitivity to relative pitch in auditory pattern perception. We used probe stimuli to explore pattern discrimination in narrow local regions of the wide frequency range. The probe data showed that, in spite of the frequency range constraint, the starlings were able to process pitch patterns on a relational basis. The results join earlier data indicating that both absolute and relative pitch processing may be involved in the natural auditory communication of songbirds.     

Reforming practice or modifying reforms?: Elementary teachers' response to the tools of reform

Understanding the interaction between internally constructed and externally imposed aspects of the teaching context may be the missing link between calls for school reform and teachers' interpretation and implementation of that reform. Although the context of the local school culture has a profound impact on teachers, there are other external forces that are specifically aimed at influencing teachers' pedagogical and curricular decisions. These externally imposed aspects of context include some of the existing tools of reform, such as national standards, mandated state core curricula, and related criterion‐referenced testing. However, little is known about how these reform tools impact teachers' thinking about science and science teaching or how teachers respond to such tools. This study examined the interactions between individual teachers' beliefs about teaching and learning science in elementary school and the tools of reform that are imposed upon them. Comparative case studies were conducted in which two elementary teachers' science instruction, teaching context, and related beliefs were examined, described, and analyzed. In this study, the teachers' fundamental beliefs about science and what it means to teach and learn science influenced their interpretations of the sometimes contradictory messages of reform as they are represented in the standards, mandated curriculum, and end‐of‐level tests. Suggestions about what these findings mean for needed aspects of teacher professional development are offered. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 44: 396–423, 2007     

Teaching Now with the Living: A Dialogue with Teachers Investigating Contemporary Art Practices

The Education Departments of Tate Modern and Goldsmiths College collaborated with a group of teachers to find out what they understood by the term ‘contemporary art’ and to discover the conditions that enable contemporary art practices in the classroom. We explored questions with eleven teachers, from both primary and secondary schools, during the Autumn of 2004. Although the cultural/ethnic context of the schools the teachers worked within was diverse, they shared a commitment to working with contemporary art in the classroom and exploring new pedagogies in this field. Their engagement with contemporary art and their revealing and compelling experiences are documented, contextualized and summarized. Samples of the discussions form the substance of this article. This is preceded by an analysis of the success of socially‐orientated contemporary art in the wider global context and its contrast with the omission of these practices in many schools. Conclusions have been tentatively drawn about how the curriculum may be better served by the use of contemporary art, as well as the means by which new learning methods may be facilitated.     

The Impact of Race,Gender, and Socioeconomic Status on School Counselors’ Alternative Learning Program Placement Decisions: An Experimental Study

As a form of exclusionary discipline, student placement into an alternative learning program (ALP) may lead to negative outcomes for students (e.g., lower academic achievement, attrition, involvement in the juvenile justice system; Anderson and Ritter in Educ Policy Anal Arch 25(49):1–33, 2017). School counselors are called to address inequitable policies, procedures, and conditions that may limit students’ personal/social and academic development, college access, and career readiness (ASCA, The ASCA national model: a framework for school counseling programs, 3rd edn. American School Counselor Association, Alexandria, VA, 2012). Additionally, school counselors should be unbiased in their decision-making (ASCA, Ethical standards for school counselors. American School Counselor Association, Alexandria, VA, 2016). The researchers utilized a true experimental design to examine the impact of student race (African American or White), gender (male or female), and socioeconomic status (SES; economically advantaged or disadvantaged) on practicing school counselors’ (N?=?334) decisions to place students in ALPs for disciplinary reasons. A factorial analysis of variance revealed no statistically significant differences in school counselors’ likelihood of placing students in ALPs for disciplinary reasons based these student demographic factors. The study also revealed a statistically significant positive relationship between school counselors’ belief in a just world, as measured by the Global Belief in a Just World Scale (GBJWS; Lipkus in Personal Individ Differ, 12(11): 1171–1178. https://doi.org/10.1016/0191-8869(91)90081-L, 1991), and likelihood of referring students to ALPs for disciplinary reasons. Implications for school counselors and educational stakeholders are discussed.

     

Peace Education: Exploring Some Philosophical Foundations

Peace education has been recognized as an important aspect of social education for the past three decades. The critical literature as well as official documents, however, have given little attention to its philosophical foundations. This essay explores these foundations in the ethics of (1) virtue, (2) consequentialism, (3) aesthetics, (4) conservative politics and (5) care. Each of these alone composes a significant element of peace education, although ultimately its solid basis can only be established through an integrative approach encouraging a culture of peace. The more complete development and articulation of the philosophical rationale of peace education is yet to be accomplished and remains a task for the future.     

Principles and practices of literacy development for deaf learners: a historical overview

Since the very beginning of formal approaches to deaf education, the development of literacy has been a priority issue. The history of educational initiatives in this area is entwined with the history of prevailing attitudes and practices toward the impact of deafness on the development of deaf children more generally. In particular, arguments about whether a visual input (reading) can take the place of a diminished auditory input and whether educators should accommodate or seek to ameliorate the effects of the special linguistic characteristics of deaf learner-readers have resulted in a wide variety of practices and perspectives. These varied practices and perspectives continue to have impacts on current educational debate and practice. This article provides a brief historical overview of these educational endeavors, noting the enduring questions and issues that remain for the field to address.