Father Absence in Pregnancy or During Childhood and Pubertal Development in Girls and Boys: A Population-Based Cohort Study     

Anne Gaml-Sørensen  Nis Brix  Andreas Ernst  Lea Lykke Harrits Lunddorf  Cecilia Høst Ramlau-Hansen 《Child development》2021,92(4):1494-1508

This cohort study, including 15,810 children born 2000–2003 in Denmark, aimed to investigate the association between father absence in pregnancy or during childhood and pubertal development in girls and boys. The children were followed from 11 years of age and throughout pubertal development. Mean age differences according to exposure groups were estimated for each pubertal marker separately and for a combined pubertal marker. The results suggested that father absence in pregnancy and during childhood was associated with earlier pubertal development in girls, and father absence from late childhood was associated with earlier pubertal development in boys. The paternal investment theory, the psychosocial acceleration theory and the energetics theory were explored, and did not seem to explain the observed associations.  相似文献   

Parsing written language with non-standard grammar     

Hallberg  Andreas  Niehorster  Diederick C. 《Reading and writing》2021,34(1):27-48

Reading and Writing - Morphologically marked case is in Arabic a feature exclusive to the variety of Standard Arabic, with no parallel in the spoken varieties, and it is orthographically marked...  相似文献   

Teacher-led design of an adaptive learning environment     

Anna Mavroudi  Thanasis Hadzilacos  Dimitris Kalles  Andreas Gregoriades 《Interactive Learning Environments》2016,24(8):1996-2010

This paper discusses a requirements engineering process that exemplifies teacher-led design in the case of an envisioned system for adaptive learning. Such a design poses various challenges and still remains an open research issue in the field of adaptive learning. Starting from a scenario-based elicitation method, the whole process was highly participatory, with requirements validation in iterative cycles. The contribution of the paper is twofold: (a) it exposes the design of an environment which addresses the related challenges mentioned by the participants and the literature and (b) it suggests a methodology of framing key requirements into a set of critical success factors for meeting the end-users’ expectations. The latter could be crucial in cases where the available resources are limited, but the quality of the product must not be sacrificed.  相似文献   

Can collaborative concept mapping create mathematically productive discourses?     

Andreas Ryve 《Educational Studies in Mathematics》2004,56(2-3):157-177

Four groups (three engineering students in each group)were videotaped while constructing concept maps in Linear Algebra. There are two aims of this study. The first is to characterize the discourse in the groups by addressing the following research questions: Do the students communicate in an effective way?Do the students' communications contain the elements typical for amathematically productive discourse? The analysis indicates that the communication among the students is effective and contains the elements that are characteristic for a mathematically productive interaction. The two types of methods used to analyze the data were focal and preoccupational analysis. The mathematical content and the coherence of the conversations were examined through focal analysis. The participants' engagement in the discourse was examined by preoccupational analysis, carried out by means of interactive flow chart. The second aim of this study is to evaluate the newly developed methodological framework used to characterize the discourses. The study shows that several aspects of the methodological framework need to be developed.  相似文献   

Dynamic multimedia stream adaptation and rate control for heterogeneous networks     

Szwabe Andrzej  Schorr Andreas  Hauck Franz J.  Kassler Andreas J. 《浙江大学学报(A卷英文版)》2006,7(1):63-69

Dynamic adaptation of multimedia content is seen as an important feature of next generation networks and pervasive systems enabling terminals and applications to adapt to changes in e.g. context, access network, and available Quality-of-Service (QoS) due to mobility of users, devices or sessions. We present the architecture of a multimedia stream adaptation service which enables communication between terminals having heterogeneous hardware and software capabilities and served by heterogeneous networks. The service runs on special content adaptation nodes which can be placed at any location within the network. The flexible structure of our architecture allows using a variety of different adaptation engines. A generic transcoding engine is used to change the codec of streams. An MPEG-21 Digital Item Adaptation (DIA) based transformation engine allows adjusting the data rate of scalable media streams. An intelligent decision-taking engine implements adaptive flow control which takes into account current network QoS parameters and congestion information. Measurements demonstrate the quality gains achieved through adaptive congestion control mechanisms under conditions typical for a heterogeneous network.  相似文献   

Harmonising codification and socialisation in knowledge management     

Apostolou  Dimitris  Abecker  Andreas  Mentzas  Gregoris 《知识管理研究与实践》2007,5(4):271-285

Knowledge Management Research & Practice - Decision makers process and combine manifold types of data, information and knowledge, available in various forms in the organisation. The aim of...  相似文献   

Quality Assurance in UK Higher Education: Issues of Trust, Control, Professional Autonomy and Accountability   总被引：5，自引：0，他引：5  

Andreas Hoecht 《Higher Education》2006,51(4):541-563

This article explores the issues of trust, control, professional autonomy and accountability in higher education quality assurance in the UK. The main part of this article is conceptual, but it includes results from semi-structured interviews with academic staff that were conducted at two “new university” business schools. Both institutions are broadly similar in their key characteristics and have experienced a transformation to university status in the early 1990s. The article argues that there has been a change from informal “light-touch” quality control systems based on local practices and a significant amount of trust and professional autonomy in the early 1990s to a highly prescribed process of audit-based quality control today. The article argues that accountability and transparency are important principles that academics should wholeheartedly embrace, but that the audit format adopted in the UK introduces a one-way accountability and provides “rituals of verification” (Power 1997) instead of fostering trust, has high opportunity costs and may well be detrimental to innovative teaching and learning.  相似文献   

Can't Ignore—Distraction by Task-Irrelevant Sounds in Early and Middle Childhood     

Nicole Wetzel  Florian Scharf  Andreas Widmann 《Child development》2019,90(6):e819-e830

Attention control abilities are relevant for learning success. Little is known about the development of audio-visual attention in early childhood. Four groups of children between the ages of 4 and 10 years and adults performed an audio-visual distraction paradigm (N = 106). Multilevel analyses revealed increased reaction times in a visual categorization task when task-irrelevant novel sounds were presented, demonstrating involuntary distraction of attention. This distraction effect decreased with age and significantly differed between age groups. In addition, the two youngest age groups responded with a delay in trials following a distractor trial, indicating delayed reallocation of attention to the task at hand. Results indicate a significant maturation of audio-visual attention control within a few years during early childhood that continues throughout middle childhood.  相似文献   

Adult education and the fostering of asylum seekers as “full” citizens     

Fejes  Andreas 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2019,65(2):233-250

International Review of Education - The role of adult education in the shaping and fostering of democratic citizens is prevalent in current transnational and national policy discussions; a...  相似文献   

How do teachers interpret and transform entrepreneurship education?     

Andreas Fejes  Mattias Nylund  Jessica Wallin 《课程研究杂志》2019,51(4):554-566

During the last decade, entrepreneurship education has become a central curricular topic in many locations in the world. In Sweden, entrepreneurship education was implemented in the curriculum for the first time in 2011, as something that should be included in all upper secondary school programmes. In this article, we focus on one of these programmes, the handicraft programme, investigating how entrepreneurship education is formulated in the latest curriculum and how teachers understand and transform such content in their teaching. Drawing on Bernstein’s concepts of classification and framing, we illustrate how entrepreneurship education in the Swedish curriculum has a ‘dual definition’, representing very different framing and classification, but still clearly belongs in a ‘market relevance’ discourse. This is expressed through the way in which the concept is transformed by teachers in their teaching. We also find that entrepreneurship education has low legitimacy among teachers, particularly when it is classified weakly. The weak framing and classification, taken together with the low legitimacy among teachers, are likely to lead to very different transformations of entrepreneurship education in different educational contexts. In the long run, this could have a negative effect on the equivalence of teaching at upper secondary school.  相似文献