Approximation based on orthogonal and almost orthogonal functions     

Dragan Antić  Bratislav Danković  Saša Nikolić  Marko Milojković  Zoran Jovanović 《Journal of The Franklin Institute》2012,349(1):323-336

In this paper, we define a class of almost orthogonal rational functions of Legendre type in a new manner. Relations of these functions with classical exponentional functions orthogonal over interval (0, ∞), as well as classical polynomials orthogonal over (0, 1) are explained. Defining relations of these functions can be used for designing almost orthogonal filters. These filters are generators of orthogonal signals and can be successfully applied in finding the best signal approximation in the sense of the mean square error. The filters orthogonal property enables building of physical (in this case electrical) models of dynamical systems (the sources of signals to be approximated) either with less components for the same model accuracy or higher accuracy for the same number of components than the other known models. New filters represent further improvement of previously designed filters, by the same authors, in the sense of simplicity, higher accuracy, lesser approximation time and even a possibility to approximate signals generated by systems with built-in imperfections. Series of experiments were performed to analyze the dependence of approximation accuracy and the number of filters sections.  相似文献   

Scientific policy in Yugoslavia     

Branko Raković 《Minerva》1965,3(2):187-209

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THE INTERNATIONALIZATION OF HIGHER EDUCATION: A POINT OF VIEW FROM A DEVELOPING COUNTRY     

Ivan Ivić 《Higher Education in Europe》1991,16(2):10-22

This article takes a close analytical look at the internationalization of higher education, asking penetrating questions with regard to its basis, its forms, and its results. The author is particularly concerned with problems of asymmetry with regard to the educational links, particularly at higher education level, between the developed western democracies and the developing countries. Going beyond the question of brain drain, the article probes the problem of the alienation of third world academics trained in the higher education institutions of developed countries. While on the balance the author praises the results of the internationalization of higher education and, at any rate, recognizes that it is here to stay, he cautions all those involved in it be aware of who in fact gains and who loses as a result of it.  相似文献   

Methodology of world clearinghouse activity     

Konrad R. Fiałkowski  Mieczysław R. Muraszkiewicz  Alicja B. Tołwińska 《Information processing & management》1981,17(1):21-25

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THE MEANING AND IMPORTANCE OF CULTURALLY DETERMINED IMPLICIT VALUES FOR THE INTERNATIONALIZATION OF EDUCATION     

Mirjana Krizmanić  Vladimir Kolesarić 《Higher Education in Europe》1991,16(2):46-60

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Job satisfaction and temperament structure of gifted people     

Małgorzata Siekańska  Andrzej Sękowski 《High Ability Studies》2006,17(1):75-85

This article focuses on the problems of adults who in secondary school were high ability learners. The main point of interest of the research presented here is job satisfaction among gifted people and their temperament structure. The authors are interested whether there exist correlations between the investigated variables both in the entire group of gifted individuals as well as in the subgroup of those gifted in the humanities and in the control group. The research results show that between the group of gifted people and the control group there appear significant differences in vigorousness (VG) and activity (AC). The studied groups differ as to the kind and extent of the fulfilment of expectations concerning professional career. Gifted individuals, in comparison to the control group, are more satisfied with their jobs.  相似文献   

Das Bildungssystem der Sozialistischen Föderativen Republik Jugoslawien (SFRJ)     

S. Pavićević 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1970,16(3):375-377

Ohne Zusammenfassung  相似文献   

Development of Math Attitudes and Math Self-Concepts: Gender Differences,Implicit–Explicit Dissociations,and Relations to Math Achievement     

Dario Cvencek  Ružica Brečić  Dora Gaćeša  Andrew N. Meltzoff 《Child development》2021,92(5):e940-e956

Three hundred and ninety-one children (195 girls; M_age = 9.56 years) attending Grades 1 and 5 completed implicit and explicit measures of math attitudes and math self-concepts. Math grades were obtained. Multilevel analyses showed that first-grade girls held a strong negative implicit attitude about math, despite no gender differences in math grades or self-reported (explicit) positivity about math. The explicit measures significantly predicted math grades, and implicit attitudes accounted for additional variance in boys. The contrast between the implicit (negativity for girls) and explicit (positivity for girls and boys) effects suggest implicit–explicit dissociations in children, which have also been observed in adults. Early-emerging implicit attitudes may be a foundation for the later development of explicit attitudes and beliefs about math.  相似文献   

Nouvelles tendances dans L'appreciation des taches de l'enseignement elementaire     

Wincenty Okoń 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1969,15(1):42-56

Sans résumé

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New trends in defining the functions of elementary education

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Neue Tendenzen in der Beurteilung der Aufgaben des Elementarunterrichts

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Traditional vs. innovative uses of computers among mathematics pre-service teachers in Serbia     

Timothy Teo  Mingming Zhou  Dragić Banković 《Interactive Learning Environments》2017,25(7):811-827

This study examined pre-service teachers’ intentions to use computers in traditional and innovative teaching practices in primary mathematics classrooms. It extended the technology acceptance model (TAM) by adding as external variables pre-service teachers’ experience with computers and their technological pedagogical content knowledge (TPCK). Data collected from 226 participants revealed that the proposed model had a good fit for both traditional and innovative uses of computers. Structural equation modelling suggested that the established TAM variables, together with TPCK and experience, were significant determinants of pre-service teachers’ intentions to use computers in teaching mathematics at both levels. The most dominant determinant of behavioural intention was TPCK, followed by attitude. The proposed model explained 22.7% of the variance in the use of computers in traditional teaching practices and 27.6% of the variance in the use of computers in innovative teaching practices. The implications for mathematics teaching are discussed in the final section.  相似文献