Faith,Work, and Praxis: A Process Model of Integration for Christian Student Affairs Administrators

The scholarship regarding faith integration practice has largely focused on faculty work; however, the field faces a paucity of data-supported approaches to understanding faith integration in the work lives of administrators. In this qualitative study, we developed a conceptual model that employs the concept of praxis to analyze the process by which mid-level student affairs administrators integrate their faith in their professional work lives. Findings show that the praxis model illuminates the sources of religious commitment that student affairs administrators drew upon when merging their faith commitments with their work lives. The model also highlights the introspective nature of faith integration, the power dynamics inherent in their interactions with students and superiors, and the individual and systemic change that resulted. Participants' religious habitus, reflective of personal experience as well as professional socialization, were both unconsidered and deliberate. Despite participants' claims that integration occurred organically and reflexively, intentionality before, during, and after integration situations was a hallmark of these exemplars' professional practice. The praxis model may be a valuable professional development tool for individuals, institutions, and graduate programs.     

Family environments, adrenarche, and sexual maturation: a longitudinal test of a life history model

Life history theorists have proposed that humans have evolved to be sensitive to specific features of early childhood environments and that exposure to different environments biases children toward development of different reproductive strategies, including differential pubertal timing. The current research provides a longitudinal test of this theory. Assessments of family environments, based on interviews with mothers and fathers, were conducted in preschool, and children were then followed prospectively through middle childhood. Adrenal hormones were assayed in a selected subsample of 120 children (73 girls) at age 7, and parent and child reports of secondary sexual characteristics were collected in the full female sample of 180 girls at age 11. Higher quality parental investment (from both mothers and fathers) and less father-reported Marital Conflict/Depression forecast later adrenarche. Older age at menarche in mothers, higher socioeconomic status, greater mother-based Parental Supportiveness, and lower third-grade body mass index each uniquely and significantly predicted later sexual development in daughters. Consistent with a life history perspective, quality of parental investment emerged as a central feature of the proximal family environment in relation to pubertal timing.     

A functional model of the digital extensor mechanism: Demonstrating biomechanics with hair bands

The action of muscles about joints can be explained through analysis of their spatial relationship. A functional model of these relationships can be valuable in learning and understanding the muscular action about a joint. A model can be particularly helpful when examining complex actions across multiple joints such as in the digital extensor mechanism of the hand. A functional model using two hair bands representing the components of the digital extensor mechanism is described. Through superimposition of the model over one's digit, the combined actions of metacarpophalangeal joint flexion and interphalangeal joint extension are clearly demonstrated. The model provides a conceptual demonstration to enhance understanding of this unique combination of muscle actions about multiple joints. Anat Sci Educ, 2010. © 2010 American Association of Anatomists.     

The design of a nuclear reactor

The aim of this largely pedagogical article is to employ pre-college physics to arrive at an understanding of a system as complex as a nuclear reactor. We focus on three key issues: the fuel pin, the moderator, and lastly the dimensions of the nuclear reactor.     

Physical and psychomotor performance of Australian football and rugby league officials during a match simulation

The onset of exercise facilitates an improvement in psychomotor performance until the second ventilatory threshold, after which performance is reduced. This inverted-U relationship appears valid for incremental and steady-state exercise, however, not for intermittent exercise. This study examined changes in psychomotor performance of team sport officials during a laboratory-based match simulation. Twelve elite Australian football (n = 5) and rugby league (n = 7) officials (32.5 ± 5.5 years; 180.0 ± 6.8 cm; 78.8 ± 7.6 kg) completed the match simulation on a non-motorised treadmill. Physiological measures were routinely taken, while psychomotor performance was assessed using the Eriksen flanker task (multiple-choice response time). Significant reductions (P < 0.05) were observed in distance covered and high-speed running during the second half when compared to the first. No significant differences (P > 0.05) in psychomotor performance at different time points were observed. Response time was significantly improved when running above 65% of maximal sprinting speed (P < 0.01). This data questions the application of the inverted-U hypothesis for intermittent exercise and suggests that the short high-intensity efforts may not result in the same physiological events that limit psychomotor performance during sustained high-intensity exercise. More so, the high-intensity efforts during the match protocol appeared to promote psychomotor performance during the intermittent exercise.     

Introducing students to the application of statistics and investigative methods in political science

This exercise introduces students to the application of statistics and its investigative methods in political science. It helps students gain a better understanding and a greater appreciation of statistics through a real world application.     

Emotion Regulation, Parenting and Display of Social Reticence in Preschoolers

The study of social reticence in early childhood has focused primarily on those dispositional, intra-individual factors that might account for its demonstration among peers. Little is known, however, about the relations between social reticence and its association with the quality of parenting behaviors. Indeed, the independent and interactive “contributions” of dispositional and parenting factors to children's demonstration of socially reticent behavior have not received adequate attention. In this study, 188 preschool children and their mothers were observed during unstructured Free-play and a structured Lego-building teaching task. Additionally, the children were observed in quartets of same-sex, same-age unfamiliar peers. Results indicated that children's shy, socially reticent behavior was predicted by the extent to which mothers were over-solicitous during Free-play. In addition, preschooler's expressions of reticent behavior were predicted by the interactions between emotion dysregulation and the lack of maternal guidance and control during a teaching task. Emotionally dysregulated children whose mothers provided little control in this putatively stressful teaching task were more likely to be shy and reticent. This relation was non-significant for dysregulated children with mothers who provided high levels of guidance. The results suggest that early childhood educators offer reticent/shy children opportunities to explore their impersonal and social milieus and to warmly encourage such exploratory activities. Without such encouragement and opportunity building, reticent preschoolers may suffer from not having experienced sufficient exploration-to-play sequences thereby stifling the problem-solving competencies derived from such experiences.     

Experimental measurement of the quantum geometric tensor using coupled qubits in diamond

Geometry and topology are fundamental concepts, which underlie a wide range of fascinating physical phenomena such as topological states of matter and topological defects. In quantum mechanics, the geometry of quantum states is fully captured by the quantum geometric tensor. Using a qubit formed by an NV center in diamond, we perform the first experimental measurement of the complete quantum geometric tensor. Our approach builds on a strong connection between coherent Rabi oscillations upon parametric modulations and the quantum geometry of the underlying states. We then apply our method to a system of two interacting qubits, by exploiting the coupling between the NV center spin and a neighboring ¹³C nuclear spin. Our results establish coherent dynamical responses as a versatile probe for quantum geometry, and they pave the way for the detection of novel topological phenomena in solid state.