体育电化教育心理及教学负效应分析

电教媒体作为一种新奇而强烈的刺激源,引起了学生浓厚的兴趣,并由此产生出良好教学效果。但是在经历多年的实践应用后,笔认为,体育电教事业要发展、要跟上时代发展的步伐,就必须要依据教育学原理和认知心理学原理来研究教与学的心理动态：本试图通过对体育电化教学心理现象及若干教学负效应的分析研究,来进一步促进体育教学质量的提高：     

五十年媒介可信度研究述评

本文对源于说服研究的媒介可信度研究的相关文献做了回顾与梳理,详细介绍了可信度的概念、传统媒介可信度的比较研究、影响传统媒介可信度的因素以及当今传播学界对于网络媒介可信度的研究现状.     

Navigating the complexities at an LGBTQQI-identified charter school: An ethnography of c/overt narratives

The authors describe ethnographic research exploring the experiences of school stakeholders at a lesbian, gay, bisexual, transgender, queer, questioning, and intersex (LGBTQQI)–identified charter school. Participants evidenced use of an overt and covert narrative that appeared to reflect how they navigated the complexities at the LGBTQQI-identified charter school. Participants’ narrative included 5 broad themes of complexity: (a) a negotiation of autonomy with support and belonging, (b) ambiguities in professional roles and boundaries, (c) inconsistency across educational standards and assessment, (d) interaction between individual and collective identity, and (e) the gap between needs and resources. Implications for future practice and research are explored.     

Exertional Heat Stroke of Max Gilpin; A Preventable Death

ABSTRACT

Exertional heat stroke (EHS) is a medical emergency whose likelihood in sport settings is often contingent on environmental factors, team policies, coaching strategies, and broader cultural expectations. Moreover, when it occurs, it requires immediate recognition, proper management, and care to optimize chances of survival or recovery without long-term sequelae. Max Gilpin, a secondary school American football player from Louisville, Kentucky, suffered an EHS during a football practice in August 2008, an event that resulted in his death. The purpose of this article is to use interdisciplinary methods to identify key factors that contributed to this tragedy so that similar situations do not happen again. It concludes that within a culture of inclusive gender norms and care, efforts should be made to have appropriate onsite medical expertise available to develop and implement best practices for the prevention, management, and treatment of EHS, along with coaching education specific to medical emergencies in sport and physical activity (such as EHS). This will create an environment that promotes health and safety for all student athletes participating in sport at the secondary school level.     

Military deployments and children's academic achievement: Evidence from Department of Defense Education Activity Schools

Household disruptions – such as divorce, relocation, and parental absence – have long concerned researchers interested in the educational attainment of children. Here, we consider a plausible source of exogenous variation in work-related parental absences—military deployments to Iraq and Afghanistan in the 2002–2005 period. Combining the standardized test scores of children enrolled in Defense Department schools with their military parent's personnel data, we evaluate the effect of a soldier's deployment on the academic achievement of his or her children. We find that deployments have modest adverse effects in most academic subjects, with lengthy deployments and deployments during the month of testing associated with the largest detrimental effects. Evidence also suggests that these adverse effects may persist for several years.     

School Counselor Supervisors' Perceptions of the Discrimination Model of Supervision

The authors examined 38 school counselor supervisors' perceptions of the Discrimination Model (DM; Bernard, 1979, 1997) of supervision, replicating and extending Ellis and Dell's (1986) investigation of the DM with mental health counselor supervisors. Participants judged the dissimilarity of each unique combination of roles and foci of the DM. The authors conducted a confirmatory multidimensional scaling analysis to compare the implicit dimensions and constructs that school counselor and mental health counselor supervisors used to make decisions. Results suggested partial similarities in the conceptual maps of school counselor and mental health counselor supervisors. Implications and suggestions for future research are discussed.     

微纳米尺度离焦图像恢复方法

提出一种基于NSCT的图像自适应降噪增强算法,对显微镜下获得的离焦图像进行图像恢复预处理.微纳米尺度光学显微镜下采集的离焦图像,通常细节、边缘和轮廓都不清晰,会影响到后续观测任务的精确度.NSCT变换由于多尺度和多方向性,拥有优越的变换功能,可以获得图像更多的纹理和边缘.结合微纳米尺度光学离焦图像的特点,对所有子带进行NSCT逆变换重新构建图像.最后通过对标准500 nm尺度栅格、导电探针和三角探针的实验结果表明,使用本文算法的图像效果更好,有效改善了离焦图像的质量.     

Practical issues in field based testing of oral reading fluency at upper elementary grades

In this series of studies, we explore the ideal frequency, duration, and relative effectiveness of measuring oral reading fluency. In study one, a sample of 389 fifth graders read out loud for 1 min and then took a traditional state-level standardized reading test. Results suggest administering three passages and using the median yields the highest predictive validity. Study two compared oral reading fluency rates at 30 and 60 s for 815 elementary and middle school students on the same passage. Results indicate that the 30 s measures yield a comparable score. Study three found relatively similar predictive validity of oral reading fluency for 67 fourth- and 125 sixth-grade students on Aimsweb, EasyCBM, and DIBELS. Implications for practice are discussed.     

People use math as a weapon: critical mathematics consciousness in the time of COVID-19

Educational Studies in Mathematics - The emergence of the COVID-19 pandemic has brought increased attention to the critical mathematical literacy of citizens in the United States and around the...     

Empowering Students Through Critical Media Literacy: This Means War

Media messages are increasingly packaged in ways that blur distinctions between genres. The U.S. Army National Guard's recent campaign incorporating rock stars and popular music to appeal to potential recruits exemplifies this trend, as commercials and music videos become one and the same. Given this increasing trend, critical media literacy education is imperative. This article posits that by introducing the meta-language for discussing media and providing a protocol for exploring the mode, audience, purpose, and situation of media messages, teachers are preparing students to autonomously read media through a critical lens.