Research: Managing College Student Mental Health Crises After-Hours: A Survey of Counseling Centers

Counseling center directors at 22 colleges and universities in Pennsylvania were surveyed regarding staff involvement in students' mental health crises after hours. Center practices regarding on-call procedures, counselor availability, hospitalization of students, and management of impaired students on campus are described and potential problems are discussed.     

二维Otsu算法在壁虎脑切片图像处理中的应用

提出将基于二维Otsu算法的分割方法应用于大壁虎脑切片彩色图像背景区域的漂白处理中及保护目标区域的方法,并对一维和二维算法进行了比较。首先构建二维直方图,然后利用二维直方图建立二维Otsu算法,并对大壁虎脑切片彩色图像进行分割,最后恢复分割完成的二值图像中目标区域的彩色特性。这一方法在生物医学彩色图像处理中得到了较好的实现,同时,本文进一步验证了该方法在普通彩色图像处理中的可行性。     

基于变电站巡检机器人的室外断路器状态自动识别算法

对于变电站高压断路器的状态识别问题,本文提出了一种基于图像处理的自动识别算法,该算法基于变电站巡检机器人平台,使用双模板匹配方法,参考目标区域差异度,自动识别断路器的“分”、“合”状态,可靠性高,漏检率低,可以直接用于同定点变电站设备监控系统或自主移动机器人巡检系统,为变电站无人值守和智能变电站建设提供了可靠的方法和手...     

太阳能—热泵热水系统供热优化设计

针对目前大型太阳能—热泵多热源热水系统实时连续供热性能不佳和达不到最大节能效果等问题,提出以谷电时段预蓄热为核心的系统供热策略。论文优化现有太阳能—热泵热水系统构架,以天气预报为基础,应用RBF神经网络技术制定谷电时段预蓄热策略中蓄热最高水温值、蓄热水量等关键参数,并以太阳能集热器水温、蓄水箱水温水位等参数为依据,完成系统各热源及相关运行机构的启停,实现制热、蓄热、供热的协调控制。该方法能提高目前大型太阳能—热泵多热源热水系统节能效果及实时连续供热能力,为大型太阳能热水系统的控制策略提供新思路。     

Understanding mental toughness in Australian soccer: Perceptions of players,parents, and coaches

Abstract

This study was designed to investigate the effect of ingesting a glucose plus fructose solution on the metabolic responses to soccer-specific exercise in the heat and the impact on subsequent exercise capacity. Eleven male soccer players performed a 90 min soccer-specific protocol on three occasions. Either 3 ml · kg^?1 body mass of a solution containing glucose (1 g · min^?1 glucose) (GLU), or glucose (0.66 g · min^?1) plus fructose (0.33 g · min^?1) (MIX) or placebo (PLA) was consumed every 15 minutes. Respiratory measures were undertaken at 15-min intervals, blood samples were drawn at rest, half-time and on completion of the protocol, and muscle glycogen concentration was assessed pre- and post-exercise. Following the soccer-specific protocol the Cunningham and Faulkner test was performed. No significant differences in post-exercise muscle glycogen concentration (PLA, 62.99 ± 8.39 mmol · kg wet weight^?1; GLU 68.62 ± 2.70; mmol · kg wet weight^?1 and MIX 76.63 ± 6.92 mmol · kg wet weight^?1) or exercise capacity (PLA, 73.62 ± 8.61 s; GLU, 77.11 ± 7.17 s; MIX, 83.04 ± 9.65 s) were observed between treatments (P > 0.05). However, total carbohydrate oxidation was significantly increased during MIX compared with PLA (P < 0.05). These results suggest that when ingested in moderate amounts, the type of carbohydrate does not influence metabolism during soccer-specific intermittent exercise or affect performance capacity after exercise in the heat.     

What is PE?

Physical education is a socially constructed activity that forms one component of a wider physical culture that includes sport and health/physical activity . The terms sport and physical education are often used interchangeably in school contexts, where sport and health continue to shape what is understood by the term physical education. This study explores discourses shaping pre-service primary teachers' understandings of the nature and purposes of physical education within an Irish context and the relationship between these understandings. A 10-minute writing task prompted by the question ‘what is physical education?’ was completed by a sample of pre-service teachers (n=544, age range 18–46, 8.8% male) from two colleges of education, prior to the physical education component of their teacher education programme. Content analysis involved an initial text frequency search to create categories which were collapsed into three broad areas of students' understandings of physical education—sport, health and physical education. The research design allowed access to pre-service teachers' understandings of physical education. Participants' understandings reflected their own school experiences and were framed within health and sport ideologies of physical education. Although acknowledged as an important part of school life physical education was perceived as a break from academic subjects where the purpose of learning was to learn sports and activities to stay fit and healthy. While the overwhelmingly positive nature of participants' experiences and the changing discourses around competition and team games are encouraging the dominant discourses of physical education continue to reflect the dominant aspects of wider physical culture in Ireland. The capacity of physical education to move beyond reproducing dominant sport and health ideologies provides a significant challenge to teacher education contexts, to challenge dominant discourses and recreate understandings of physical education for future action.     

Associative and postprandial control of schedule-induced drinking: Implications for the study of interim behavior

Schedule-induced drinking and food-magazine contacts were examined in rats receiving either true- or pseudodiscriminative conditioning. Schedule-induced drinking was largely confined to S? following true discrimination training, but when SI and S2 were unrelated to food deliveries (pseudo condition), drinking occurred after food ingestion. A stimulus generalization test for drinking yielded an excitatory postdiscrimination gradient around S? after the true discrimination and a flat gradient after the pseudo discrimination. Additional observations showed S? drinking to be closely related to the amount of food consumed during the immediately preceding S+ trial. These data suggested that both the predictive feature of S? and postprandial stimuli can control schedule-induced drinking. It was argued that these variables represent two general processes—induction and selection—both of which are necessary conditions requiring further study. Magazine contacts during S+ did not distinguish the true from the pseudo condition and were not influenced by test stimuli during a generalization test.     

学校组织形象的构成要素与建设策略

学校组织形象是由学校理念形象、学校行为形象和学校视觉形象共同构成的有机整体。良好的学校组织形象对于拓展学校生存与发展空间,促进学校成员积极心态的形成,增强学校组织的凝聚力和向心力等,具有重要意义。学校形象建设的主要策略包括科学定位、理念锤炼、内外结合和强化宣传等。