Sex-specific associations of moderate and vigorous physical activity with physical fitness in adolescents     

T. Kidokoro  H. Tanaka  K. Naoi  K. Ueno  T. Yanaoka  K. Kashiwabara 《European Journal of Sport Science》2016,16(8):1159-1166

The present study examined the sex-specific associations of moderate and vigorous physical activity (VPA) with physical fitness in 300 Japanese adolescents aged 12–14 years. Participants were asked to wear an accelerometer to evaluate physical activity (PA) levels of various intensities (i.e. moderate PA (MPA), 3–5.9 metabolic equivalents (METs); VPA, ≥6 METs; moderate to vigorous PA (MVPA), ≥3 METs). Eight fitness items were assessed (grip strength, bent-leg sit-up, sit-and-reach, side step, 50?m sprint, standing long jump, handball throw, and distance running) as part of the Japanese standardised fitness test. A fitness composite score was calculated using Japanese fitness norms, and participants were categorised according to their score from category A (most fit) to category E (least fit), with participants in categories D and E defined as having low fitness. It was found that for boys, accumulating more than 80.7?min/day of MVPA may reduce the probability of low fitness (odds ratio (ORs) [95% confidence interval (CI)]?=?0.17 [0.06–0.47], p?=?.001). For girls, accumulating only 8.4?min of VPA could reduce the likelihood of exhibiting low fitness (ORs [95% CI]?=?0.23 [0.05–0.89], p?=?.032). These results reveal that there are sex-specific differences in the relationship between PA and physical fitness in adolescents, suggesting that sex-specific PA recommendation may be needed to improve physical fitness in adolescents.  相似文献   

Educational Research for Policy and Practice in Japan – With Particular Reference to Youth Education     

Taro Numano  Yoshiyuki Nagata  Mariko Ichimi Abumiya 《Educational Research for Policy and Practice》2002,1(1-2):35-50

Based upon the Fundamental Law of Education, Japanese school education system has long been a source of pride for the country as a result of the high school participation rate, the homogeneity of compulsory education throughout the country. However, the confidence of the people in its schools is now showing severe signs of strain and fatigue. In recent years, there have been many reports about the growing seriousness of a number of educational problems having to do with young people in their childhood and adolescence. Since the mid-1970s, a number of problems have been highlighted. They include violent behavior, juvenile crimes, bullying, refusal to attend school, dropping out at secondary level of education, and corporal punishment. Against the above background, based on recommendations from such advisory bodies as the Central Council for Education and the National Commission on Education Reform, the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) has adopted a range of policies and launched a series of educational reform programmes. For instance, what is called “Rainbow Plan”, based on the final report submitted by the National Commission on Education Reform, provides the country with basic guidelines for the educational reform in the near future. Roles of educational research for making policies have been of significance. Research initiated by the National Institute for Educational Policy Research (NIER) and the National Federation of Educational Policy Research Institutes (NFERI) is an example of contributions to the development of educational qualities in the country. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

An integrated teaching method of gross anatomy and computed tomography radiology          下载免费PDF全文

Tohru Murakami  Yuki Tajika  Hitoshi Ueno  Sachiko Awata  Satoshi Hirasawa  Maki Sugimoto  Yoshihiko Kominato  Yoshito Tsushima  Keigo Endo  Hiroshi Yorifuji 《Anatomical sciences education》2014,7(6):438-449

It is essential for medical students to learn and comprehend human anatomy in three dimensions (3D). With this in mind, a new system was designed in order to integrate anatomical dissections with diagnostic computed tomography (CT) radiology. Cadavers were scanned by CT scanners, and students then consulted the postmortem CT images during cadaver dissection to gain a better understanding of 3D human anatomy and diagnostic radiology. Students used handheld digital imaging and communications in medicine viewers at the bench‐side (OsiriX on iPod touch or iPad), which enabled “pixel‐to‐tissue” direct comparisons of CT images and cadavers. Students had lectures and workshops on diagnostic radiology, and they completed study assignments where they discussed findings in the anatomy laboratory compared with CT radiology findings. This teaching method for gross and radiological anatomy was used beginning in 2009, and it yielded strongly positive student perspectives and significant improvements in radiology skills in later clinical courses. Anat Sci Educ 7: 438–449. © 2014 American Association of Anatomists.  相似文献   

Children who cannot write     

Helene C. Durbrow 《Annals of dyslexia》1960,10(1):13-15

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Aprendizaje de la física mediante la expansión del metacontexto de los fenómenos     

Naoki Ueno  Norifumi Arimoto 《Cultura y Educación》2013,25(19-20):109-130

Desde una perspectiva socio-cultural los autores ven las “concepciones ingénuas” en física no como simples entidades o representaciones mentales, sino como construcciones de un sistema interactivo entre el mundo real y los dispositivos cognitivo-culturales de una determinada cultura. En esta perspectiva el cambio conceptual desde una concepción “ingenua” a una científica sería sólo y más bien un cambio de meta-contexto cultural e implica más un proceso de recontextualización que la simple transición de una estructura conceptual a otra.  相似文献   

Conservation of stained glass windows with protective glazing: Main results from the European VIDRIO research programme     

Adriana Bernardi  Francesca Becherini  Marco Verità  Patrick Ausset  Maura Bellio  Ulrike Brinkmann  Helene Cachier  Anne Chabas  Felix Deutsch  Marie-Pierre Etcheverry  Franco Geotti Bianchini  Ricardo H.M. Godoi  Velichka Kontozova-Deutsch  Roger Lefèvre  Tiziana Lombardo  Peter Mottner  Chiara Nicola  Isabelle Pallot-Frossard  René Van Grieken 《Journal of Cultural Heritage》2013,14(6):527-536

The methodology of protecting the European stained glass windows against environmental risk (e.g. meteorological factors, air pollution, microorganisms) by means of an external glazing is not new. In spite of many scientific studies carried out in the last 20 years, some questions were still up for discussion. The European VIDRIO (2002–2005) project gave an answer to these questions. The research carried out by the different project partners established a new multidisciplinary approach aimed at evaluating the efficiency of the protective glazing systems and their effects on stained glass windows conservation, and finally at assessing the most appropriate strategy to preserve stained glass windows. Scientific results showed that the so-called isothermal glazing (i.e. ventilation by the air coming from the inside of the building) protected efficiently the ancient stained glass window from environmental attack (i.e. rain, pollutants, condensation, thermal shocks) with very limited secondary effects. The scientific research highlighted that its efficiency was strongly related to the technical design of the protective system. In particular, the ventilation and the size of the interspace had to be carefully considered. The research developed within the VIDRIO project was turned into general recommendations to the owners and practitioners on the best practice for the stained glass windows future conservation.  相似文献   

Does childhood victimization increase the risk of early death? A 25-year prospective study     

White HR  Widom CS 《Child abuse & neglect》2003,27(7):841-853

BACKGROUND: Abuse and neglect have been shown to influence the mental and physical health of children; however, few studies have examined whether childhood victimization leads to an increased risk of early death. PURPOSE: This paper compares mortality data and examines cause of death for a sample of 908 abused and/or neglected individuals and 667 matched controls who were followed up into young adulthood. METHODS: Using data from a prospective cohort design study, a large group of children with substantiated cases of abuse (physical and sexual) and/or neglect approximately 25 years ago were matched with a control group of children and both groups were followed up into adulthood. The National Death Index was searched twice and official death certificates were collected for most individuals who had died. RESULTS: Surprisingly, there were no significant differences in rates of mortality for the two groups (abuse and neglect = 3.5%, controls = 3.0%). Furthermore, victims of child abuse and neglect were not more likely to experience a violent death. CONCLUSIONS: Our results do not provide support for a heightened rate of early death in abused and neglected children followed up into young adulthood. Limitations of the study are discussed as well as potential reasons for these unexpected findings.  相似文献   

Teacher–student interaction in contemporary science classrooms: is participation still a question of gender?†     

Nina Eliasson  Helene Sørensen  Karl Göran Karlsson 《International Journal of Science Education》2016,38(10):1655-1672

We show that boys still have a greater access to the space for interaction in science classrooms, which is unexpected since in Sweden today girls perform better in these subjects than boys. Results from video-recorded verbal communication, referred to here as interaction, show that the distribution of teacher–student interaction in the final year of lower secondary school follows the same patterns as in the 1980s. The interaction space for all kinds of talk continues to be distributed according to the two-thirds rule for communication in science classrooms as described by previous research. We also show that the overall interaction space in science classrooms has increased for both boys and girls when talk about science alone is considered. Another finding which follows old patterns is that male teachers still address boys more often than girls. This holds true both for general talk and for talk about science. If a more even distribution of teacher–student interaction is desirable, these results once again need to be considered. More research needs to be undertaken before the association between girls’ attitudes and interest in science in terms of future career choice and the opportunity to participate in teacher–student interaction is more clearly understood.  相似文献   

Exploring literacy and growth: An analysis of three communities of readers in urban Senegal     

Mariko Shiohata 《International Journal of Educational Development》2009

This paper consists of two parts. The first part reviews how the arguments supporting literacy education have changed over the last five decades. Although there has been a shift in emphasis from economic to socio-cultural and personal dimensions, literacy is still considered mainly as an instrument for economic growth and poverty alleviation. The second part presents a case study of three different establishments which provide reading materials in urban Senegal. The analysis indicates that people are more likely to practise reading when they have access to materials which genuinely interest them. These materials are not necessarily about development or livelihood—themes often judged as ‘appropriate’ for socio-economic growth by policy makers and practitioners. People read stories and history books for their own pleasure – rather than out of a sense of duty – to transcend the mundane routine of their daily lives. This ‘reading for pleasure’ aspect needs to be taken more account of in literacy education.  相似文献   

Holocaust education in Austria: A (hi)story of complexity and ambivalence     

Bastel  Heribert  Matzka  Christian  Miklas  Helene 《Prospects》2010,40(1):57-73

In Austria, activities for teaching about and remembering the Holocaust have concentrated mainly on National Socialism and its atrocities. Austria’s history of political anti-Semitism goes back to the 19th century, however, and has been widely and publicly acknowledged. It has always been linked to nationalistic tendencies that are still present today and rarely reflected upon, including the anti-Slavic and anti-Turkish attitudes that right-wing parties use to gain supporters. Vienna’s special place of remembrance, the Heldenplatz, with its monuments and history, is a useful place to begin examining Austrian identities and the course of collective Austrian ways of thinking. Based on that examination, we then consider Austria’s daily politics and treatment of the past. We next turn to Holocaust education after the war, which has had an impressive impact after a late start, and mention some of its drawbacks and problems. We next discuss the lack of serious research about memorials in Austria, as compared with Germany, and present initial results from a project that started in spring 2009 to examine knowledge gains and attitude changes among students after they visit the Mauthausen concentration camp.  相似文献