Implementation and perceived benefits of an after-school soccer program designed to promote social and emotional learning: A multiple case study

Social and emotional learning (SEL) competencies such as self-awareness and relationship skills are predictors of academic success, overall well-being, and avoidance of problematic behaviors. Among school-aged children, research has demonstrated that well-implemented programs teach SEL competencies and life skills (e.g., leadership, responsible decision making) that can transfer to other settings. Similar claims have been made in the field of sport-based youth development (SBYD), however, the SEL framework has not been widely applied in sport programming. Implementation, student learning, and transfer of learning in SBYD programs designed to promote SEL require further exploration. Therefore, the current study examined the implementation and perceived benefits of an after-school soccer program designed to promote SEL. Participants were six coaches and 51 students from three different sites where this program is offered. A multiple case study design was used, integrating data from customized feedback surveys, interviews, systematic observation, and field notes. Results indicated the program reflects many SBYD best practices. Although implementation varied between sites, program culture and core values were consistent. Evidence indicated students learned and applied SEL lessons in the soccer program and that transfer beyond the program was promoted. Participants were most likely to report transfer to the school setting, therefore, future studies should examine this topic more directly. Other implications for research and program implementation are discussed

Emission characteristics and dynamics of the stagnation layer in colliding laser produced plasmas

The expansion dynamics of ion and neutral species in laterally colliding laser produced aluminum plasmas have been investigated using time and space resolved optical emission spectroscopies and spectrally and angularly resolved fast imaging. The emission results highlight a difference in neutral atom and ion distributions in the stagnation layer where, at a time delay of 80 ns, the neutral atoms are localized in the vicinity of the target surface 1 mm from the target surface while singly and doubly charged ions lie predominantly at larger distances, 1.5 and 2 mm, respectively. The imaging results show that the ions were found to form a well defined, but compressed, stagnation layer at the collision front between the two seed plasmas at early times (Dt ~ 80 ns). On the other hand, the excited neutrals were observed to form a V-shaped emission feature at the outer regions of the collision front with enhanced neutral emission in the less dense, cooler regions of the stagnation layer

Rethinking political process in technological change : socio-technical configurations and frames

The political process perspective has done much to enhance our understanding of the organizational effects of technological change as a negotiated outcome reflecting the political and power dynamics of the adopting context. In so doing, we suggest, technology has been marginalized as an analytical category and the problem of change agency, although better understood, remains largely unresolved. This article addresses these issues through the articulation of the concepts of socio-technical configurations and technological frames and explores their utility in understanding change agency through an action research project. The project sought a novel form of \u27socio-technology\u27 transfer, taking ideas and concepts of \u27human-centered\u27 manufacturing embodied in team-based cellular manufacture from a European context into three firms in Australia.<br /

Placenta growth factor and vascular endothelial growth factor B expression in the hypoxic lung

<p>Abstract</p> <p>Background</p> <p>Chronic alveolar hypoxia, due to residence at high altitude or chronic obstructive lung diseases, leads to pulmonary hypertension, which may be further complicated by right heart failure, increasing morbidity and mortality. In the non-diseased lung, angiogenesis occurs in chronic hypoxia and may act in a protective, adaptive manner. To date, little is known about the behaviour of individual vascular endothelial growth factor (VEGF) family ligands in hypoxia-induced pulmonary angiogenesis. The aim of this study was to examine the expression of placenta growth factor (PlGF) and VEGFB during the development of hypoxic pulmonary angiogenesis and their functional effects on the pulmonary endothelium.</p> <p>Methods</p> <p>Male Sprague Dawley rats were exposed to conditions of normoxia (21% O₂) or hypoxia (10% O₂) for 1-21 days. Stereological analysis of vascular structure, real-time PCR analysis of vascular endothelial growth factor A (VEGFA), VEGFB, placenta growth factor (PlGF), VEGF receptor 1 (VEGFR1) and VEGFR2, immunohistochemistry and western blots were completed. The effects of VEGF ligands on human pulmonary microvascular endothelial cells were determined using a wound-healing assay.</p> <p>Results</p> <p>Typical vascular remodelling and angiogenesis were observed in the hypoxic lung. PlGF and VEGFB mRNA expression were significantly increased in the hypoxic lung. Immunohistochemical analysis showed reduced expression of VEGFB protein in hypoxia although PlGF protein was unchanged. The expression of VEGFA mRNA and protein was unchanged. <it>In vitro </it>PlGF at high concentration mimicked the wound-healing actions of VEGFA on pulmonary microvascular endothelial monolayers. Low concentrations of PlGF potentiated the wound-healing actions of VEGFA while higher concentrations of PlGF were without this effect. VEGFB inhibited the wound-healing actions of VEGFA while VEGFB and PlGF together were mutually antagonistic.</p> <p>Conclusions</p> <p>VEGFB and PlGF can either inhibit or potentiate the actions of VEGFA, depending on their relative concentrations, which change in the hypoxic lung. Thus their actions <it>in vivo </it>depend on their specific concentrations within the microenvironment of the alveolar wall during the course of adaptation to pulmonary hypoxia.</p

Full Financial Aid in the Ivy League: How High-Achieving, Low-Income Undergraduates Negotiate the Elite College Environment

Thesis advisor: Karen ArnoldCurrently, there are nearly a million high-achieving, low-income students in the United States. In the nation's most selective institutions of higher education, students from low-income families have been persistently under-represented. Elite colleges, in particular, have only recently begun admitting low-income students in large numbers, a result of full need-based financial aid programs that began in the early 2000s as a way to attract a more socioeconomically diverse student body. This hermeneutic phenomenological study describes the lived experiences of these undergraduates and how they navigated a college environment historically reserved for wealthy students. Although participants initially expected to feel marginalized due to unfounded concerns of elitism, they formed friendships both within and across socioeconomic class divisions and described feeling integrated within the elite college. Participants developed self-protective narratives to compensate for their low-income backgrounds and employed strategies to make up for poor high-school preparation. Participants were grateful for the opportunity to attend an elite college and were proud and relatively forthcoming about their financial aid status because they considered it a reward for their intellectual ability. Three main conclusions derive from the findings of this research: Low-income students' tendency to make a distinction between socioeconomic and financial aid status; the notion of a new cultural capital hierarchy for high-achieving, low-income students within an elite college setting; and, a specific application of Bronfenbrenner's ecological developmental model for this niche population. The results of this study indicate that high-achieving, low-income students are flourishing in full need-based financial aid programs as a result of their own resilience and intellectual capital. Participants' experiences indicate that this population of undergraduates faces unique challenges and requires specific support services to equalize their opportunities vis-à-vis higher-income peers. From these findings, implications for colleges and universities and full need-based financial aid programs are discussed.Thesis (PhD) — Boston College, 2011.Submitted to: Boston College. Lynch School of Education.Discipline: Educational Administration and Higher Education

Addressing transition issues in mathematics and physics through practitioner inquiry

This study reports on the implementation of a teacher professional learning programme designed to develop teachers’ competencies in designing rich tasks that support student learning across transitions in mathematics and physics. Primary and secondary teachers were supported to conduct their own Practitioner Inquiry (PI) and design and implement rich tasks in their classrooms. This study reflects on the experiences of four teachers of mathematics and physics who collaborated as part of a professional learning community over a nine-month period. The findings of this study were identified from analysing teachers’ reflections on their experiences of designing and implementing rich tasks in their classrooms and examining the impact of these tasks on their students’ learning through practitioner inquiry. Examples of rich tasks prepared by teachers will be discussed along with the challenges identified by teachers in carrying out practitioner inquiry and designing appropriate rich tasks

Hypercapnic Acidosis Reduces Oxidative Reactions in Endotoxin-Induced Lung Injury

Hypercapnic acidosis frequently occurs when patients with acute lung injury are initially ventilated with low tidal volume protective strategies. Hypercapnic acidosis per se, in the absence of any change in tidal volume or airway pressure, is protective when instituted before the onset of injury. However, the mechanisms by which hypercapnic acidosis confers this protection are incompletely understood, in particular, the effects on pulmonary oxidative reactions, which are potent mediators of tissue damage, have not been previously examined in vivo