生物发酵对小麦麸皮营养成分的影响

试验利用发面酵母通过在不同时间、温度等条件下对小麦麸皮进行生物发酵,并对发酵后的麸皮进行营养成分测定.结果表明:发酵后的麸皮营养成分较原样均有极显著的改变(P＜0.01),当温度为35℃、温度为58%、麸皮发酵时间为18小时(h)时,粗蛋白含量提高了119.59%,乙醚浸提物含量提高了73.68%.     

SCUBA Diving: Motivating and Mentoring Culturally and Cognitively Diverse Adolescent Girls to Engage in Place-Based Science Enrichment

Abstract

Many bright, talented girls from populations traditionally underrepresented in Science, Technology, Engineering, and Mathematics (STEM) are underachieving or disengaged in school, despite having an interest in STEM. Qualitative research was conducted with teenaged girls from culturally and academically diverse backgrounds participating in an extracurricular scientific diving SCUBA program. The program provided opportunities for these girls to learn and apply STEM knowledge and SCUBA diving skills during research, service learning and place-based, hands-on projects. Findings suggest that motivation for STEM in teenaged girls increases when they are able to participate in real-life, place-based activities they find personally meaningful with other interest-based peers and mentors.     

基于优势富集效应的地方高校特色办学

优势富集效应是起点上的微小优势经过关键过程的级数扩大而产生的更大级别的优势累积,是一种全新的起点发展理论。优势富集效应的特色突显,低成本发展诉求及相关资源进化的累加和适应趋势启示地方高校在办学过程中必须立足自身传统与优势,立足区域经济社会发展,采取非均衡发展战略,才能形成特色。     

Distance Education in the Rural K-12 Environment

Abstract

A small rural school in Idaho tried various forms of distance education to broaden the range of subjects offered to students. It gave up on satellite-based coursework because of high cost and synchronization problems. Correspondence courses solved the synchronization problem, but still required expensive adult supervision to keep students on task. IP-based videoconferencing appeared to promise lower costs and better synchronization, but in practice it proved to be difficult to implement and exhausting for course teachers. The school began to view videoconferencing in terms of its enrichment and collaboration values. The Internet, together with other distance education technologies, may one day erase the educational disadvantages of rural isolation. They also promise to make lifelong learning the expected norm.     

Understanding the Young Gifted Child: Guidelines for Parents, Families, and Educators

Young children who are gifted or talented share special characteristics that impact on the way they learn and develop. Teachers and parents need to consider the unique needs of each child as they plan ways to nurture and educate these youngsters. Concerns such as uneven development, the need for acceleration and/or enrichment, appropriate socialization and peer interactions, and modification of the curriculum are some of the topics discussed. Suggestions for teachers and parents are included along with a variety of resources.     

Social topography of children’s play: focusing on the middle-class parenting practices in South Korea

Abstract

This study aims to understand the ways in which children’s play is situated in and shaped by middle-class parenting practices in South Korea. Drawing on a set of data collected through semi-structured interviews with 16 parents having children aged 6–11?years, I observe that despite the widespread rhetoric of the significance of play, parents’ scheduling of their children’s daily routine centres around ‘study’, while play, especially free play, is left for in between times and limited spaces. Play is prominently associated with and instrumental in developing children’s social skills and ensuring their emotional state. In line with the trend in the Global North where a broader concept of play is being institutionalised and incorporated into organised enrichment activities, play spaces are increasingly becoming a site of strategic family consumption. The changing geographies of play strongly reflect the neoliberal climate which generates anxiety and exhaustion related to parenting practices.     

Examining the educative aims and practices of decision-makers in sport for development and peace organizations

Sport for Development and Peace (SDP) policy-makers and practitioners continue to offer ambitious claims regarding the potential role of sport-based programs for promoting social change. Yet, it is important to put sport under a critical lens in order to develop a more balanced and realistic understanding of the role of sport in society. Whether SDP programs result in positive or negative outcomes depends on the structures and processes of the implementing organizations. Hence, SDP researchers are paying more attention to the organizational approaches of these agencies. Scholars also argue the outcomes of SDP programs depend on the relationship of these organizations with broader community education and health promotion efforts. Despite the claims of many SDP programs, little remains known about the educational goals of these programs and their relationship with broader educational efforts. Therefore, the purpose of this study was to critically examine the role of education among a randomly selected sample of nonprofit SDP organizations in urban settings across the USA. Findings from in-depth interviews with 17 executive directors indicate a broad range of educative aims, but also innovative organizational practices, highlighting a salient relationship between education and SDP in the USA. Prominent themes emerged related to program models and organizational approaches, academic enrichment programming, partnerships with educational institutions and education-focused nonprofits, and educational outcomes. These findings are examined and implications for future SDP research are also discussed. Although important work is emerging in SDP literature on how educational values are delivered in these programs [Spaaij, R., & Jeanes, R. [2013]. Education for social change? A Freirean critique of sport for development and peace. Physical Education and Sport Pedagogy, 18, 442–457], findings from this study also help stimulate a critical dialogue on the educative aims and practices of decision-makers in SDP organizations.     

Teaching and Learning in STEM Enrichment Spaces: From Doing Math to Thinking Mathematically

Science, technology, engineering, and mathematics (STEM) enrichment programs can meet the needs of gifted students by providing an intellectual challenge, a motivated peer group, and skilled teachers. In the Saturday Enrichment Program (SEP), 40 students (Grades 4–8) explored challenging math topics not typically taught in their schools. Pre and post questionnaires, video documentation of classes, and field notes indicated that students were less interested in the content of their school math classes after participation in SEP. They also reported that SEP provided a more appropriate pace, challenge, and fun. Analysis of classroom videos revealed four major strategies teachers utilized: (a) fostering of a supportive and collaborative environment, (b) developing the identity of a mathematician, (c) open-ended questions for conceptual exploration, and (d) discovery through play.     

植被恢复区高产优质牧草引种栽培实验研究

本文针对安徽池州土壤气候条件,对白三叶、苇状羊茅、黑麦草、苦荬菜和菊苣等5种牧草进行引种栽培实验。通过对它们物候期观察、适应性观察和评价、营养成分分析等方面进行研究,以期能找到最适合该地区栽种的优质牧草。结果表明,除苇状羊茅外,其余草种均可达到最佳生长速度,尤以白三叶、苦荬菜、黑麦草搭配种植,可实现饲养最大经济效益。