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21.
The integration of immigrant children into the education system is a process that is accompanied by serious debate, especially in advanced countries, which have large shares of immigrants and a long history of immigration. The poorer educational outcomes of foreign-born children are largely explained there through their socio-economically disadvantaged background compared to the native-born population. This article examines whether the observations for those countries also apply to the Czech Republic—a country with a relatively short immigration history and immigration flows from different source countries than those in Western Europe. Regression analyses conducted on PISA 2012 data focusing largely on the maths skills of 15-year-olds reveal that the performance of immigrant children in Czech schools roughly compares to that of their counterparts in Western Europe. While their PISA outcomes were lower than those of Czechs, this was because immigrant children have poorer conditions at home or in the classroom.  相似文献   
22.
The purpose of this research is to review the literature about young people’s meaningful experiences in physical education and youth sport. We reviewed 50 empirical peer-reviewed articles published in English since 1987. Five themes were identified as central influences to young people’s meaningful experiences in physical education and sport: social interaction, fun, challenge, motor competence, and personally relevant learning. These themes provide future direction for the design and implementation of meaningful physical education and youth sport experiences. We also highlight the need for the development of pedagogies that facilitate and promote meaningful engagement in physical education and youth sport settings.  相似文献   
23.
The aim of this article is to study the construction of the Spanish education system and its relationship with nationalist education policies. Throughout the 20th century, there has been a great deal of tension between Spanish nationalism and Basque and Catalan nationalism, in particular, over the establishment of a national curriculum that is the expression of different conceptions of national identity. In this period, the Spanish education system evolved from centralisation to decentralisation, and as a result brought about the creation of the Spanish national curriculum. The educational contributions made in Catalonia and the Basque Country were included in this process, which partially satisfied the aspirations of these communities.  相似文献   
24.
Electrokinetic properties and morphology of PDMS microfluidic chips intended for bioassays are studied. The chips are fabricated by a casting method followed by polymerization bonding. Microchannels are coated with 1% solution of bovine serum albumin (BSA) in Tris buffer. Albumin passively adsorbs on the PDMS surface. Electrokinetic characteristics (electro-osmotic velocity, electro-osmotic mobility, and zeta potential) of the coated PDMS channels are experimentally determined as functions of the electric field strength and the characteristic electrolyte concentration. Atomic force microscopy (AFM) analysis of the surface reveals a “peak and ridge” structure of the protein layer and an imperfect substrate coating. On the basis of the AFM observation, several topologies of the BSA-PDMS surface are proposed. A nonslip mathematical model of the electro-osmotic flow is then numerically analyzed. It is found that the electrokinetic characteristics computed for a channel with the homogeneous distribution of a fixed electric charge do not fit the experimental data. Heterogeneous distribution of the fixed electric charge and the surface roughness is thus taken into account. When a flat PDMS surface with electric charge heterogeneities is considered, the numerical results are in very good agreement with our experimental data. An optimization analysis finally allowed the determination of the surface concentration of the electric charge and the degree of the PDMS surface coating. The obtained findings can be important for correct prediction and possibly for robust control of behavior of electrically driven PDMS microfluidic chips. The proposed method of the electro-osmotic flow analysis at surfaces with a heterogeneous distribution of the surface electric charge can also be exploited in the interpretation of experimental studies dealing with protein-solid phase interactions or substrate coatings.  相似文献   
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This study addresses the problem of designing an appropriate learning space or architecture for distributed online courses using net-based communication technologies. We apply Wenger's criteria to explore, identify and discuss the design architectures of two online courses from two comparable online Master's programmes, developed and delivered in two different educational cultures, Ireland (MIC) and Denmark (OL). The investigation will take the shape of a discussion of the 'walls of the learning spaces' of the two courses, with reference to Wenger's criteria and values for an appropriate learning architecture. In an earlier evaluation study, both courses were deemed to be examples of online learning communities of practice, despite their geographical and cultural diversity in contexts of development. The findings of the present study confirm and document several significant design elements of the two courses, which are stressed in the design criteria suggested by Wenger as being vital for community building.  相似文献   
27.
While it is known that the process of becoming literate begins in early childhood and usually involves several years of schooling, research related to cognitive characteristics has been done mostly on illiterate adults, and information concerning illiterate children is therefore limited. The aim of the present study, involving 21 illiterate and 22 literate Mexican children aged 6 to 13, was to investigate the effects of literacy on neuropsychological characteristics during childhood. The children??s performance on 16 cognitive domains of the Evaluación Neuropsicológica Infantil (ENI, Child Neuropsychological Assessment) was examined in three mixed within- and between-groups profile analyses. The results suggest that the effect of literacy observed in adults is already evident in children in almost every task analysed. Moreover, the fact that an age effect was detected for the calculation abilities suggests that maths learning is school- and environment-dependent.  相似文献   
28.
Many engineering undergraduates begin third-level education with significant deficiencies in their core mathematical skills. Every year, in the Dublin Institute of Technology, a diagnostic test is given to incoming first-year students, consistently revealing problems in basic mathematics. It is difficult to motivate students to address these problems; instead, they struggle through their degree, carrying a serious handicap of poor core mathematical skills, as confirmed by exploratory testing of final year students. In order to improve these skills, a pilot project was set up in which a ‘module’ in core mathematics was developed. The course material was basic, but 90% or higher was required to pass. Students were allowed to repeat this module throughout the year by completing an automated examination on WebCT populated by a question bank. Subsequent to the success of this pilot with third-year mechanical engineering students, the project was extended to five different engineering programmes, across three different year-groups. Full results and analysis of this project are presented, including responses to interviews carried out with a selection of the students involved.  相似文献   
29.
Thirteen samples of an efflorescence collected from the surface of beeswax seals or from beeswax used for their restoration were analysed in detail. The samples were of different origin, age and storage history. The composition and the incidence of the efflorescence was correlated with a chemical composition of historical and recent beeswax samples. The composition of the crystalline layer was found to be very similar in all the samples. Linear monounsaturated alkenes containing 31 and 33 carbon atoms, more precisely (Z)-hentriacont-10-ene and (Z)-tritriacont-10-ene, were identified as main components. The analyses of beeswax have revealed that all compounds identified in “wax bloom” naturally occur in recent beeswax. However, the historical beeswaxes contained only traces of unsaturated hydrocarbons, if anything. The efflorescence was observed primarily on the surfaces of those samples which contained larger proportion of alkenes. The presented results could be of particular importance not only for better understanding of the described phenomenon, but also for the development of new beeswax-based materials, which would be “bloom resistant” and useful for conservation purposes.  相似文献   
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