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A multidisciplinary approach is implemented to model and analyse the performance of Olympic rowing boats. A reduced-order model that couples rowers motions with the hull, oars and hydrodynamic and hydrostatic forces is detailed. This model is complemented with a sensitivity analysis carried out by means of a non-intrusive polynomial chaos expansion. Sensitivity analysis results for two different boat classes, namely, a lightweight single scull and a coxless four are presented and discussed. This analysis contrasts, for both classes, the effects of varying forces exerted by the rowers, weights of rowers and cadence of motions on the boat performance. 相似文献
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Abstract algebra courses tend to take one of two pedagogical routes: from examples of mathematics structures through definitions
to general theorems, or directly from definitions to general theorems. The former route seems to be based on the implicit
pedagogical intention that students will use their understanding of particular examples of an algebraic structure to get a
sense of those properties which form the basis of the fundamental definitions. We will explain the transition from examples
to abstract algebra as a series of shifts of attention and in this paper we will use a case study to examine the initial shift,
which we will call apprehending a structure, and examine how one student came to apprehend the structure of the commutative ring Z99. 相似文献
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The study investigates whether sport is an especially risky environment for sexual harassment to occur. It explores female students’ experiences of sexual harassment in organized sport and compares them with their experiences in formal education, by addressing the following research questions: (1) Are there any differences in female sport students’ experiences of sexual harassment in sport and education? (2) Are there any differences in female sport students’ experiences of sexual harassment from coaches and teachers? (3) Are there any differences in female sport students’ experiences from peer students and peer athletes? A total of 616 female students from three different European countries, Czech Republic, Greece and Norway, answered a questionnaire. The results revealed that the students had experienced more sexual harassment in an educational setting than in a sport setting. Further analysis showed that this was primarily due to sexual harassment from peers in school. In Greece and Norway, there was no difference between occurrences from teachers and coaches, yet in Czech Republic coaches appear to harass more than teachers. The difference between sexual harassment occurring from peers in sport and in education is discussed in relation to whether the sense of belonging/camaraderie that a sport club member may experience might function as a barrier for sexual harassment to occur—because it embarrasses or hurts a teammate. In addition, sport clubs and teams are governed by their respective sport rules and possibly by additional club/team rules, which may also establish extra inside-club/team boundaries for acceptable and nonacceptable/harassing behaviors. This article concludes that greater emphasis ought to be placed on education; not only toward shaping safer teacher/coach behaviors, but also toward the student/athlete behaviors. 相似文献
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Conclusion It is worth emphasizing that career guidance and counseling services aid the youth, parents, teachers, and society in general in planning for a more constructive future. The major aim is to provide students with the appropriate assistance and the skills for reaching mature career decisions. 相似文献
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Hamdi F. Ali Abdulrazzak Charbaji Nada Kassim Hajj 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1992,38(5):505-518
The study is aimed at predicting objective criteria based on a statistically tested model for admitting undergraduate students to Beirut University College. The University is faced with a dual problem of having to select only a fraction of an increasing number of applicants, and of trying to minimize the number of students placed on academic probation (currently 36 percent of new admissions). Out of 659 new students, a sample of 272 students (45 percent) were selected; these were all the students on the Dean's list and on academic probation. With academic performance as the dependent variable, the model included ten independent variables and their interactions. These variables included the type of high school, the language of instruction in high school, recommendations, sex, academic average in high school, score on the English Entrance Examination, the major in high school, and whether the major was originally applied for by the student. Discriminant analysis was used to evaluate the relative weight of the independent variables, and from the analysis three equations were developed, one for each academic division in the College. The predictive power of these equations was tested by using them to classify students not in the selected sample into successful and unsuccessful ones. Applicability of the model to other institutions of higher learning is discussed.
Zusammenfassung In Dieser Studie wird versucht, objektive, auf einem statistisch getesteten Modell basierende Kriterien zur Zulassung von Studenten zum Beirut University College herauszufinden. Diese Hochschule muß sich mit zwei Problemen auseinandersetzen, zum ersten nur einen Teil der wachsenden Zahl von Bewerbern zulassen zu können und zum zweiten die Anzahl der Studenten auf akademischer Probezeit zu reduzieren (gegenwärtig 36% der Neuzulassungen). Von 659 neuen Studenten wurden 272 Studenten (45%) fur die Studie ausgewählt: alle vom Dekan erwählte Studenten und Studenten auf akademischer Probezeit. Das Modell beinhaltet zehn unabhängige Variablen und ihre Interaktionen und basiert auf akademischer Leistung als abhängige Variable. Unter diesen Variablen sind: die Art der Sekundarschule, die Lehrsprache an der Sekundarschule, Empfehlungen, Geschlecht, Sekundarschulnoten, Leistungen beim English Entrance Examination (Leistungstest in Englisch), das Hauptfach der Schüler und ob das Hauptfach das vom Schüler ursprünglich gewählte ist. Die statistische Analyse wurde zur Bewertung der relativen Bedeutung der unabhängigen Variablen angewandt, und es wurden drei Gleichungen aus der Analyse entwickelt; eine für jede akademische Abteilung der Hochschule. Die Gültigkeit dieser Gleichungen wurde getestet, indem man sie für die Aufteilung von nicht in die Studie einbezogenen Studenten in erfolgreiche und nicht erfolgreiche Studenten anwandte. Abschließend wird die Anwendbarkeit des Modells auf andere Einrichtungen der Höheren Bildung diskutiert.
Résumé La présente étude vise à prédire les critères objectifs fondés sur un modèle statistiquement vérifié pour l'admission des étudiants à l'Université de Beyrouth. Cette dernière fait face à un problème dual: devoir sélectionner une fraction seulement d'un nombre croissant de candidats et essayer de minimiser le nombre d'étudiants inscrits à l'essai (soit actuellement 36 pour cent des nouvelles admissions). On a sélectionné un échantillon de 272 étudiants sur 659 nouveaux inscrits (soit 45 pour cent). Ces étudiants étaient tous ceux inscrits sur la liste du doyen ainsi que ceux inscrits à l'essai. Avec la performance scolaire comme variable dépendante, ce modèle comptait dix variables indépendantes et leurs interactions. Ces variables incluaient le type d'école supérieure, la langue d'enseignement pratiquée dans celle-ci, les recommandations, le sexe, la moyenne scolaire, la note obtenue à l'épreuve d'anglais de l'examen d'entrée, la matière principale à l'école supérieure, et indiquaient si cette matière avait été choisie par le candidat. On a utilisé F analyse discriminante pour évaluer le poids relatif des variables indépendantes. On a ensuite développé trois équations à partir de ces variables, une pour chacune des sections du collège universitaire. La force prédictive de ces équations a été testée en les employant pour classer les étudiants ne faisant pas partie de l'échantillon sélectionné en deux catégories: ceux ayant réussi et ceux ayant échoué. On discute de l'applicabilité de ce modèle à d'autres instituts d'enseignement supérieur.相似文献
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The purpose of the present study was to confirm previous research findings that different categories of Web-based pedagogical
tools (WBPT) (e.g., collaborative and communication tools, content creation and delivery tools) supported different self-regulated
learning (SRL) processes (e.g., goal setting, self-monitoring), and to further examine which WBPT were most effective in supporting
student SRL while completing course assignments. The sample surveyed consisted of 65 students enrolled in three distributed
courses. A mixed methods methodological approach was implemented. As expected, quantitative analyses confirmed that different
WBPT supported different SRL processes. In addition, analyses of qualitative data collected revealed that WBPT were highly
effective in activating the use of SRL processes necessary to support specific types of learning tasks required for completion
of course assignments. Educational implications for using WBPT as scaffolds for SRL are discussed. 相似文献
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“初等数论”是一门传统的数学基础理论课程,主要研究整数的性质,但也涉及不少计算的内容。在该课程中考虑如何借助计算机进行辅助计算将有利于提高学生的计算和应用能力。Lingo软件在初等数论的辅助计算上有一些不错的表现,因此,把该软件的使用融入教学将大有裨益。 相似文献