Biotechnology in the Netherlands: controversy or consensus?     

Guttelin JM 《Public understanding of science (Bristol, England)》2002,11(2):131-142

This paper addresses the issue of public perception of modern biotechnology in the Netherlands. Contrary to expectations, data from the 1999 Eurobarometer on biotechnology indicate that the position of the Dutch public in general is rather ambiguous, which is in contrast to many of its neighboring countries. The issue is described in terms of differences between the Netherlands and other European countries on political-economic, social-cultural, or media coverage indicators. On many indicators, the Dutch population differs from that of other European countries, and the Dutch opinion-leading media present a rather balanced perspective on modern biotechnology.  相似文献   

Cognitive brain potentials in kindergarten children with subtyped risks of reading retardation     

Bakker DJ  Van Strien JW  Licht R  Smit-Glaudé SW 《Annals of dyslexia》2007,57(1):99-111

Cognition-related brain responses to meaningful and meaningless figures were registered in 5-year-old kindergarten children who either had been subtyped as being at-risk of developing an L- or P-type dyslexia (LAL versus LAP) or who were not at-risk. While identifying, naming, or categorizing pictures, event-related potentials (ERP) were registered. Three cognition-related components were found: the N460, the P780, and the Slow Wave (SW). LAP-children produced weak N460 activity across tasks, whereas LAL children, and to a lesser degree, non-risk children produced robust task-dependent activity. This finding may indicate that LAP-children lack semantic input while processing the figures. P780 latencies to frequently occurring figures were found hemisphere-dependent: LAP-children showed longer latencies in the right than in the left hemisphere, whereas the distribution was reversed in the LAL and non-risk children. It was also found that the right hemisphere is generally responsible for a lion's share of the processing of figures and therefore it seems that the right hemisphere of LAP-children invests ample time in doing so. Whereas LAP-children showed largest SW amplitude differences between frequent and infrequent stimuli at posterior locations, LAL children did so at frontal locations. Assuming that the SW represents working-memory processes, it may be that working-memory in LAP-children deals with figure-relevant visual-spatial information and with figure-derived concepts in LAL children. Overall, the findings suggest that LAL and LAP represent two different groups of kindergartners at risk of dyslexia and that these differences, to some degree, fit with the presumed etiology of L- and P-type dyslexia.  相似文献   

Editorial H-score as a metric of inner authenticity for national scientific journals—Pilot study for the field of pedagogy     

Petr Novotný  Karolína Kotvaltová Sezemská  Romana Schubertová  Vanda Janštová 《Learned Publishing》2023,36(2):194-204

There is evidence that national scientific journals are important for local communities despite their limited audience due to national languages and topics, like in pedagogy. However, it is not easy to assess the level of scientific rigour of local journals, as most do not have available scientometric data and are often published in minority languages. We hypothesize that a possible manifestation of a latent trait of inner authenticity of the scientific journal (meaning the journal is accepted by a community interested in developing the field which conducts internationally accepted research) could be H-index of the editorial board members. To test this approach, we evaluated H-index and gender of editorial board members (n = 490) from 17 Czech and Slovak national science-oriented scientific pedagogical journals which were not indexed or indexed in Erih+ or Scopus, and compared this with the five lowest-rated journals from the same field indexed in the Web of Science (WoS) database. The H-index of editorial board members was somewhat higher in indexed journals with those from WoS showing higher scores, and the number of board members with no discernable H-index was far greater in non-indexed journals. Editorial boards of journals indexed in WoS were mostly male, compared to a dominance of women on boards of non-indexed journals. Acknowledging the limited sample, it appears that the H-index of editorial board members may be a way to value national scientific journals.  相似文献   

Adolescents’ Friendships,Academic Achievement,and Risk Behaviors: Same-Behavior and Cross-Behavior Selection and Influence Processes     

Mariola C. Gremmen  Christian Berger  Allison M. Ryan  Christian E.G. Steglich  René Veenstra  Jan K. Dijkstra 《Child development》2019,90(2):e192-e211

This study examined to what extent adolescents’ and their friends’ risk behaviors (i.e., delinquency and alcohol use) hinder or promote their academic achievement (grade point average [GPA]), and vice versa. Longitudinal data were used (N = 1,219 seventh- to ninth-grade adolescents; M_age = 13.69). Results showed that risk behaviors negatively affected adolescents’ GPA, whereas GPA protected against engaging in risk behaviors. Moreover, adolescents tended to select friends who have similar behaviors and friends’ behaviors became more similar over time (same-behavior selection and influence). Furthermore, although same-behavior effects seemed to dominate, evidence was found for some cross-behavior selection effects and a tendency in seventh grade for cross-behavior influence effects. Concluding, it is important to investigate the interplay between different behaviors with longitudinal social network analysis.  相似文献   

Pathways to Parental Engagement: Contributions of Parents,Teachers, and Schools in Cultural Context     

Karen Rattenborg  Aimée Kleisner Walker  Jan Miller-Heyl 《Early education and development》2019,30(3):315-336

Research Findings: This study examined correlates of parents’ reported school engagement in an ethnically diverse, rural sample (N = 346) of parents and teachers in kindergarten through Grade 2. Of particular interest were role expectations and family–school relationships in American Indian families, who historically have been marginalized by schools. In terms of role expectations, parents and teachers agreed that they should support each other’s roles, parents should have more responsibility than schools for teaching social skills, and families and schools should have shared responsibility for children’s academic success. Teachers had higher expectations than parents for parent engagement, which in turn was greater when parent–teacher communication was more frequent and the school climate was more welcoming. American Indian parents more strongly endorsed a separation of family and school roles and felt less welcomed at school; ethnicity moderated correlates of reported parent engagement. Practice or Policy: These findings have practical promise given that parent–teacher communication, school climate, and role expectations are more easily altered than are structural barriers that also may hinder parents’ involvement in supporting their children’s early education.  相似文献   

从初学者到实践专家——现代职教体系下培养目标分层次定位问题初探     

魏文芳  李南峰  李军  张健 《十堰职业技术学院学报》2011,24(6):1-4

长期以来受学科教育思想束缚,高职院校专业人才培养目标定位通常是内涵模糊的定性描述,这些描述方法不能根本上解决职业教育专业人才培养目标分层次定位问题。以职业发展关键阶段的名称及内涵要求来定位培养目标,能比较科学地解决好不同层次职业教育在课程体系、教材、教学目标、教学方法、考核评价等一系列重要问题上的有机衔接,对于我国建立现代职业教育体系,并对职业教育人才培养质量的监控与保障将形成革命性的影响。  相似文献   

Differential contribution of personality to the explanation of variance in achievement in the first language and mathematics at high school level     

Mechala Scott  Jan L. De K. Monteit 《Psychology in the schools》1987,24(1):78-83

This study assessed the differential contribution of personality to the explanation of variance in achievement in the mother tongue and mathematics at the high school level. The results indicated that personality, as measured by the HSPQ, aided the explication of variance in achievement in the mother tongue significantly, but had little influence on mathematics. Personality contributed as much to the explanation of variance in the mother tongue as did the composite cognitive variable. The influence of personality on achievement in mathematics was shown to be negligible. Some practical implications for the teaching of the first language are drawn.  相似文献   

Lost and Found: Making Sense of Foreign Spaces and the Self with Public Transport     

Jan Nåls  Nathalie Hyde-Clarke 《Journal of Intercultural Communication Research》2017,46(4):346-359

How does public transport both enable and restrict one’s negotiation and interaction with cultural, social and material landscapes? The understanding of social space and self is guided by one’s journey through those spaces, by witnessing events and public conduct. This article presents autoethnographic accounts of two communication studies researchers placed in Cape Town, South Africa, and Helsinki, Finland, for more than three months. In both situations, researchers relied on public transport with which they were unfamiliar. This study considers how those experiences were perceived, and how the researchers encountered and experienced the new social environments, local population and themselves.  相似文献   

Tribute to Dr Jacques Rogge: muscle activity and fatigue during hiking in Olympic dinghy sailing     

Jan G. Bourgois  Jasmien Dumortier  Margot Callewaert  Bert Celie  Carlo Capelli  Gisela Sjøgaard 《European Journal of Sport Science》2017,17(5):611-620

‘A tribute to Dr J. Rogge’ aims to systematically review muscle activity and muscle fatigue during sustained submaximal quasi-isometric knee extension exercise (hiking) related to Olympic dinghy sailing as a tribute to Dr Rogge’s merits in the world of sports. Dr Jacques Rogge is not only the former President of the International Olympic Committee, he was also an orthopaedic surgeon and a keen sailor, competing at three Olympic Games. In 1972, in fulfilment of the requirements for the degree of Master in Sports Medicine, he was the first who studied a sailors’ muscle activity by means of invasive needle electromyography (EMG) during a specific sailing technique (hiking) on a self-constructed sailing ergometer. Hiking is a bilateral and multi-joint submaximal quasi-isometric movement which dinghy sailors use to optimize boat speed and to prevent the boat from capsizing. Large stresses are generated in the anterior muscles that cross the knee and hip joint, mainly employing the quadriceps at an intensity of 30–40% maximal voluntary contraction (MVC), sometimes exceeding 100% MVC. Better sailing level is partially determined by a lower rate of neuromuscular fatigue during hiking and for ≈60% predicted by a higher maximal isometric quadriceps strength. Although useful in exercise testing, prediction of hiking endurance capacity based on the changes in surface EMG in thigh and trunk muscles during a hiking maintenance task is not reliable. This could probably be explained by the varying exercise intensity and joint angles, and the great number of muscles and joints involved in hiking.

Highlights

• Dr Jacques Rogge, former president of the International Olympic Committee and Olympic Finn sailor, was the first to study muscle activity during sailing using invasive needle EMG to obtain his Master degree in Sports Medicine at the Ghent University.

• Hiking is a critical bilateral and multi-joint movement during dinghy racing, accounting for >60% of the total upwind leg time. Hiking generates large stresses in the anterior muscles that cross the knee and hip joint.

• Hiking is considered as a quasi-isometric bilateral knee extension exercise. Muscle activity measurements during sailing, recorded by means of EMG, show a mean contraction intensity of 30-40% maximal voluntary contraction with peaks exceeding 100%.

• Hiking performance is strongly related to the development of neuromuscular fatigue in the quadriceps muscle. Since maximal strength is an important determinant of neuromuscular fatigue during hiking, combined strength and endurance training should be incorporated in the training program of dinghy sailors.

  相似文献   

Manpower needs in rural school psychology     

Jan N. Hughes 《Psychology in the schools》1986,23(1):59-63

The majority of unserved and underserved handicapped children live in rural America (Sher, 1978). One obstacle to serving these children is a lack of qualified staff (Helge, 1981). The turnover rates for rural and urban school psychologists in Virginia were determined for the years 1977–78 through 1979–80: the rate for rurai school psychologists is four times the rate for urban school psychologists (p<.001). Rural school psychologists who terminated employment and rural school psychologists who remained were surveyed on selected background variables in 1981. School psychologists who remained were much more likely than those who left to have been raised in a nonurban community. Implications for training programs are discussed.  相似文献