The effect of heavy resistance exercise on repeated sprint performance in youth athletes

This investigation assessed whether prior heavy resistance exercise would improve the repeated sprint performance of 16 trained youth soccer players (Age 17.05 ± 0.65 years; height 182.6 ± 8.9 cm; body mass 77.8 ± 8.2 kg). In session 1, individual 1 repetition max was measured utilising a squat movement. In sessions 2 and 3, participants performed a running-based repeated anaerobic sprint test with and without prior heavy resistance exercise of 91% of their 1 repetition max. Times were recorded for each of the 6 sprints performed in the repeated sprint test and summed to provide total time. T-tests compared the two exercise conditions via differences in corresponding sprint times and total time. Analysis revealed significantly reduced total time with use of heavy resistance exercise (33.48 (±1.27) vs. 33.59 (±1.27); P = 0.01). Sprints 1 (P = 0.05) and 2 (P = 0.02) were also faster in the heavy resistance exercise condition (5.09 (±0.16) vs. 5.11 (±0.16) and 5.36 (±0.24) vs. 5.45 (±0.26) seconds respectively) although no other differences were shown. Findings demonstrate improved sprint times of trained adolescent soccer players after heavy resistance exercise although benefits appear not as sustained as in adult participants.     

美国华人和作为同化标志的中餐食谱

饮食文化的传播是多样化的。我们可以通过移民、烹调书以及其他一些标志探究一种文化如何融入新环境。自古以来,食物就是中国人在餐桌内外普遍关注和讨论的话题。研究表明,全世界华人的饮食习惯的变迁是最为迟缓的。本文回顾了自1785年第一批华人进入并定居美国以来的一些标志性事件及其带来的变迁。随着华人移民的不断涌入,越来越多作为中华烹饪传统载体的中餐食谱在美国出版,中餐馆也在美国不断蔓延,养活了众多美国人。本文重点选取几个标志性事件作为说明依据。其中包括1899年美国政府刊发宣传册,鼓励种植和食用中国的蔬菜;20世纪上半叶中餐食谱的出版与使用;时至今日已有超过47000家中餐馆遍布美国,等等。     

美国的食品卫生与食品安全一体化

提供全世界最安全的食品,是美国社会一直引以为傲的。尽管中餐馆在全世界普遍存在食品卫生与安全的问题,而在美国已得到较稳定的控制,这与美国政府以及全社会高度重视食品卫生与安全问题密切相关。其关于食品的立法与监督体系已日臻完善,呈现出注重细节、标准量化、公开透明、监督有力、执行果断、全民参与等特点,文中谈到的相关细节与事例,值得中国政府、食品行业以及全社会的反思与借鉴。     

Pandemic,a catalyst for change: Strategic planning for digital education in English secondary schools,before during and post Covid

Following lockdowns in 2020 owing to Covid-19, schools needed to find a way to ensure the education of their pupils. In order to do this, they engaged in digital learning, to varying extents. Innovations emanated from all school staff including, for example, teachers, leaders and teaching assistants. Some were already innovating in this area and brought forward and implemented digital strategies, while others engaged with digital learning for the first time. While research is emerging about the effects of the pandemic restrictions on pupils and staff in relation to key issues such as mental health and educational attainment, very little is known about the impact on school leaders' strategic planning processes. To address this gap, this paper draws on a UK Research and Innovation funded study adopting a strategy as learning approach to report on 50 qualitative interviews with school leaders to examine digital strategy in English secondary schools, before, during and after July 2021, when restrictions were lifted in England. It draws on strategy as learning literature to evaluate if schools have changed their strategic planning for digital learning, as a direct response to having learned and innovated during the pandemic. The paper concludes that there is evidence that digital innovations during the pandemic have changed the ways in which leaders think about their digital strategy, thus supporting a strategy as learning approach. However it also concludes that although there is ample evidence that the pandemic has changed the way many schools view digital learning, for some schools, there remain persistent barriers to digital integration and planning. These emanate both from material and cultural considerations, as well as leader vision and belief in digital learning.     

Stakeholder interaction within research consortia on emerging technologies: Learning how and what?

One of the challenges for public-private R&D collaborations in emerging scientific fields is to actively include the demand side. Insight in how to facilitate learning between stakeholders is, however, lacking. In this paper we present an approach to facilitate and analyse learning processes in multi-stakeholder interactions within public-private research consortia working on new science and technologies. The learning processes that took place during dialogue meetings within the framework of the Dutch Ecogenomics Consortium were analysed, including a reflection on the actual effects. The results show that a carefully structured dialogue method facilitates learning between researchers, users and policy-related participants, and that this learning to some extent is anchored within the Ecogenomics Consortium. At the same time, the results point to the challenges of translating learning into action.     

Didactics and professional practice in preservice teacher education: A comparison of the situations in France and Québec

The authors analyze the role and function of didactics in preservice teacher education as presented in official texts from the ministries of education of Québec and France. They identify the conceptions these texts convey about the ties between didactics and professional education and demonstrate the vulnerable and limited position of didactics in teacher education. In concluding, adopting a comparative approach, they highlight several convergent features of the two systems of teacher education as well as marked differences relating to training in didactics.     

Where Theories of Mind Meet Magic: The Development of Children's Beliefs about Wishing

In two studies, we probed children's beliefs about wishing. In Study 1, we gathered initial data on 50 3- to 6-year-old children's concepts of wishing and beliefs about its efficacy, with both a semistructured interview and a variety of tasks. Results revealed considerable knowledge about wishing in young children, along with an age-related decrease in beliefs about its efficacy. Parents were not found to encourage differently the beliefs of children at different ages, nor were they found to begin actively discouraging such beliefs at any particular age. A moderate relation was found between environmental supports for wishing and children's beliefs in its efficacy. In Study 2, we continued to probe these issues and also address the nature of the broader conceptual context in which children situate their beliefs about wishing. Participants were 92 3- to 6-year-old children. Results of this study suggest that children may reconcile beliefs in the efficacy of wishing with knowledge about everyday mental-physical relations by situating these beliefs more within their emerging beliefs about magic than within their theories of mind.     

Research Report RECSAM: Computers in Education Project,Singapore Study

From 1986 to 1988, Regional Centre for Education in Science and Mathematics (RECSAM) at Penang organised the Computers in Education Project with financial support from the Australian Government. The aim of the Project was to provide information on the use of computers in education among SEAMEO countries. Such information, it was thought, could be useful for educators who needed to formulate sound policies regarding the introduction, management, and use of computers in schools and the roles of computers in education in general. Six countries took part in this project including a team from Singapore.     

The research function of universities in Japan

Japan has long led the trend towards privatization of Research andDevelopment (R&D). With the recent establishment of corporate R&Dfacilities overseas, this has become more international in character. Therelative impoverishment of Japanese academic science has only recently begunto be addressed by the government. Despite the neglect, there appears to bea gradual increase in Japanese academic research, but international researchcollaborations are still quite limited in number. There are growing tieswith industry, but industry has been slow to recognize the value of graduateschool training. Stronger links may promote greater research activity, butwithout reforms to the structure of the education system and Ministry ofEducation policies, Japan will not be prepared to meet the challenge of the21st century, and the need for a highly-skilled, innovative workforce.