Situated Learning: Conceptualization and Measurement

A focus on the interaction between cognitive schemas and context in situ has been suggested as fundamental in organizational decision making and information interpretation. Past research suggests that the situation and the social interaction that occur during learning at the cognitive level consist of factors that affect the process, but the research lacks a coherent explanation for how those factors affect it. We propose a conceptualization of learning, termed situated learning, which accounts for these factors. By drawing on situated cognition theory, social learning theory, and the theory of mental models, we identify and measure four components of situated learning, that is, thematic focus, cognitive absorption, social structure, and participation. Among the most important lessons for researchers and practitioners is the need to consider learning as a constellation of the four components instead of an indivisible phenomenon. This perspective can enhance our understanding of cognitive processes, such as information interpretation and decision making.     

Exposure to school violence at school and mental health of victimized adolescents: The mediation role of social support

The purpose of the current study is to examine the mediation role of social support in the relationship between exposure to violence at school and mental health among adolescents within the framework of two structured models via structural equation model (SEM). The participants consist of a total of 1420 9th, 10th, and 11th grades high school students (54.5% girls and 45.5% boys). The students’ ages ranged from 14 to 18 years with a mean of 16.11 (SD = 0.91) for total sample. 38 percent of the participants are in the 9th grade, 34.1 percent are in the 10th grade, and 28 percent are in the 11th grade. Findings from both models indicated that social support mediated the relationships between exposure to violence and mental health among adolescents. Additionally, both models showed that the associations between exposure to violence, social support and mental health varied by gender. Contributions and implications of the current findings are discussed in detail.     

Effect of contact and no-contact small-sided games on elite handball players

This study aimed to investigate the effect of contact (C-SSG) and no-contact (NC-SSG) handball small-sided games (SSGs) on motion patterns and physiological responses of elite handball players. Twelve male handball players performed 10 C-SSG and 10 NC-SSG while being monitored through the heart rate (HR) and rate of perceived exertion (RPE) as physiological responses and time-motion activities profile using video-match analysis. Both game conditions resulted in similar HR responses (P > 0.05), but the NC-SSG led to a higher RPE scores. The time-motion activity analysis featured NC-SSG with a greater amount of walking (855.6 ± 25.1 vs. 690.6 ± 35.2 m) and backward movements (187.5 ± 12.3 vs. 142.5 ± 8.7 m) combined with fast running (232.3 ± 8.5 vs. 159.7 ± 5.7 m) and sprinting (79.5 ± 4.7 vs. 39.7 ± 3.7 m) activities (P < 0.001). Conversely, C-SSG had a higher percentage of jogging and sideway movements associated with greater frequency of jumping (0.87 ± 0.09 vs. 0.31 ± 0.06 nr) and physical contact (1.82 ± 0.55 vs. 0.25 ± 0.03 nr) events (P < 0.001). No between-regimen differences were found for the number of throws (P = 0.745). In addition, the RPE was significantly correlated with fast running relative distances (r = 0.909, P < 0.001) and sprinting relative distances (r = 0.939, P < 0.001). In conclusion, this investigation showed that both C-SSG and NC-SSG in team handball can effectively represent specifically oriented exercises, according to the sport-task and the performance demands.     

用进废退：老年人参与运动锻炼多维心理效果测量与评价

采用＂划字测验＂、＂瑞文测验＂、＂BFS心境测验＂、＂SCL—90测验＂,对经常参加运动锻炼与不锻炼的老年人进行调查。研究发现,经常参加运动锻炼能够延缓老年人智力的衰退,提高老年人心理健康水平,调节老年人的情绪,使他们愉悦、乐观等良性情绪显著提高,愤怒、激动等消极情绪显著降低。     

攀岩运动员运动性心理疲劳特征及对策

采用查阅文献、问卷调查、逻辑分析等研究方法,从训练实践的角度出发,针对攀岩运动项目的特点,运用运动心理学相关知识,对攀岩运动员运动性心理疲劳表现形式、产生原因进行分析与探讨,提出了缓解和消除攀岩运动员运动性心理疲劳的对策,为提高攀岩运动成绩提供参考。     

毛泽东廉政思想研究

腐败是个历史性、世界性的问题,也是我国当前存在的一个重大问题。反腐倡廉现已成为全社会关注的焦点。加强毛泽东廉政思想的研究,可以为我国廉政制度建设提供思考线索和理论借鉴。     

Physiological demands of match-play in elite tennis: A case study

Abstract

The physiological and perceptual demands together with match notation of a four-set tennis match were studied in two elite professional players during the preparation for the 2008 Davis Cup. The design of this case report is unique in that it is the first to describe the demands of prolonged match-play (197 min) over four sets in ecologically valid conditions. The variables measured before and after each set included blood lactate and glucose concentrations, body mass, and perception of effort. Stroke count for each rally and heart rate were recorded during each set while salivary cortisol concentration was determined before and after the match. The rally length decreased as the match progressed. The results showed significant physiological stress, with each player losing greater than 2.5% of body mass (as fluid) and having elevated salivary cortisol concentrations after the match. Heart rate and perception of effort were also increased following each set indicating increasing stress. However, blood lactate decreased following the fourth set while blood glucose was maintained. The results also suggest that elite players may adjust work rates or tactics to cope with the increased perception of effort. This report shows that four sets of tennis are associated with increasing stress and fatigue.     

Movement and stretching imagery during flexibility training

Abstract

The aim of this study was to examine the effect of movement and stretching imagery on increases in flexibility. Thirty volunteers took part in a 4 week flexibility training programme. They were randomly assigned to one of three groups: (1) movement imagery, where participants imagined moving the limb they were stretching; (2) stretching imagery, where participants imagined the physiological processes involved in stretching the muscle; and (3) control, where participants did not engage in mental imagery. Active and passive range of motion around the hip was assessed before and after the programme. Participants provided specific ratings of vividness and comfort throughout the programme. Results showed significant increases in flexibility over time, but no differences between the three groups. A significant relationship was found, however, between improved flexibility and vividness ratings in the movement imagery group. Furthermore, both imagery groups scored significantly higher than the control group on levels of comfort, with the movement imagery group also scoring significantly higher than the stretching imagery group. We conclude that the imagery had stronger psychological than physiological effects, but that there is potential for enhancing physiological effects by maximizing imagery vividness, particularly for movement imagery.     

Girls' and boys' perceptions of physical education teachers' feedback: Effects on performance and psychological responses

Abstract

In this study, we examined the perceptions of physical education (PE) teachers' feedback patterns with female and male high school students (n = 325). Eight physical education teachers (4 females and 4 males) were involved. We examined (a) whether teachers' feedback was perceived differently by boys and girls, and how the sex of the teacher influenced these perceptions, and (b) the effects of types of feedback (praise, no response-successful, encouragement, technical information, criticism, no response-unsuccessful, and teacher's invested time) on students' perceived competence, effort, enjoyment, and their PE performance. A multivariate analysis revealed an interaction between teacher and student gender on perceptions of teacher feedback. Hierarchical regression analyses highlighted that the perceived feedback significantly predicted students' perceptions of competence (ΔR ² = 0.088), effort (ΔR ² = 0.119), enjoyment (ΔR ² = 0.085), and their PE performance (ΔR ² = 0.039) after accounting for the gender of the students and teachers and the students' initial PE performance. The perceptions of praise and teachers' invested time were positively linked with the dependent variables, whereas encouragement and technical information and criticism were negatively linked. The findings are discussed in terms of teaching effectiveness and gender equity.     

情商在大学初级阶段英语课堂教学中的运用

情感智商，简称情商，对语言学习的过程与结果有直接影响。在大学初级阶段英语课堂教学中只有了解、重视并充分利用学生的情商，才能真正做到因材施教，把握信息输入与输出的最佳时机并找到培养思维能力的最佳方法；同时帮助学生及时转变旧的学习观念，调整学习方法以形成良好的学习习惯。