A three-dimensional kinematic analysis of the long jump take-off

The long jump has been widely studied in recent years. Two models exist in the literature which define the relationship between selected variables that affect performance. Both models suggest that the critical phase of the long jump event is the touch-down to take-off phase, as it is in this phase that the necessary vertical velocity is generated. Many three dimensional studies of the long jump exist, but the only studies to have reported detailed data on this phase were two-dimensional in nature. In these, the poor relationships obtained between key variables and performance led to the suggestion that there may be some relevant information in data in the third dimension. The aims of this study were to conduct a three-dimensional analysis of the touch-down to take-off phase in the long jump and to explore the interrelationships between key variables. Fourteen male long jumpers were filmed using three-dimensional methods during the finals of the 1994 (n = 8) and 1995 (n = 6) UK National Championships. Various key variables for the long jump were used in a series of correlational and multiple regression analyses. The relationships between key variables when correlated directly one-to-one were generally poor. However, when analysed using a multiple regression approach, a series of variables was identified which supported the general principles outlined in the two models. These variables could be interpreted in terms of speed, technique and strength. We concluded that in the long jump, variables that are important to performance are interdependent and can only be identified by using appropriate statistical techniques. This has implications for a better understanding of the long jump event and it is likely that this finding can be generalized to other technical sports skills.     

Mapping the knowledge structure exhibited by a cohort of students based on their understanding of how a galvanic cell produces energy

This study evaluates the use of an open‐ended question to determine students' knowledge structure on the topic of galvanic cells. The open‐ended question was developed and administered to 163 Grade 10 students who had earlier completed a course on electrochemistry. Students' responses were marked as well as coded on the basis of the fields identified from their responses. This was then evaluated statistically to determine the collective knowledge structure of the sample of students. The knowledge structure thus mapped contains both canonical concepts and alternative conceptions (ACs). An important finding emerging from this study is that instructors need to focus student's attention on the dynamic processes involving electrons and ions during the operation of galvanic cells. In order for students to fully understand how a galvanic cell operates, they need to see the whole picture. There are three critical components that lead to students' understanding of how an oxidation–reduction reaction can generate energy and how a circuit is complete: transfer of electrons during oxidation–reduction half‐reactions, flow of electrons within metals, and migration of ions in solution. Also, we found that it is possible for students to use correct chemistry concepts in an incorrect way by establishing linkages among these in an inappropriate manner. We reiterate that apart from evaluating students' ACs, it is also important to evaluate the links between the concepts and conceptions present in students' knowledge structure so that teaching can be made more effective.     

The governance of sustainable socio-technical transitions

A quasi-evolutionary model of socio-technical transitions is described in which regimes face selection pressures continuously. Differentiated transition contexts determine the form and direction of regime change in response to these pressures. The articulation of pressures, and the degree to which responses are coordinated and based on resources available within the regime, define the transition context. Four alternative contexts are described: endogenous renewal; re-orientation of trajectories; emergent transformation and purposive transitions. Agency and power in the governance of regime transformation are analysed. Power to affect change depends on regime membership, the distribution of resources for change and expectations.     

Value differences in foreign students

The Rokeach Value Survey was administered to four equivalent groups of students studying in London. It was hypothesized that a number of differences would occur between these groups based on their country of origin, respective affluence and traditional cultural values. Half of the values showed significant differences between groups with the British Control Group and the Europeans being most often more similar to each other than the other groups. The Africans were most different from the three other groups. These results were interpreted in terms of cultural and economic differences and related specifically to the literature of sojourner adjustment. Limitations of the research are also noted.     

Zimbabwe's educational miracle and the problems it has created

When ZANU (PF) came to power in 1980, it had promised to establish free and compulsory primary and secondary education for all children in Zimbabwe. The Ministry of Education has achieved remarkable increases in school enrolments, particularly at secondary level. It has also undertaken to allow all pupils to sit the O Level examinations after four years of secondary schooling. But by so doing it has encouraged a belief in the importance of academic qualifications and a crisis of expectation among pupils. There are insufficient places for those who wish to continue to Sixth Form (higher secondary) studies, a lack of alternative vocational training, and an inadequate rate of creation of new jobs for school leavers. There seem but three ways out: to cut defence spending in favour of education, to send students abroad for higher training, or to develop new employment and training schemes, perhaps after an imported model.

---

Zusammenfassung Als die Afrikanische Nationalunion von Simbabwe, ZANU (PF), 1980 an die Macht kam, hatte sie zugesichert, eine allgemeine unentgeltliche Schulpflicht für die Primar- und Sekundarstufen in Simabwe einzuführen. Das Erziehungsministerium hat einen erstaunlichen Zuwachs an Einschulungen, besonders auf der Sekundarschulebene erzielt. Darüberhinaus hat das Ministerium Schritte eingeleitet, so daß Schüler die Mittlere Reife (O Level) nach vier Sekundarschuljahren ablegen können. Durch diesen Schritt wurde gleichzeitig die überzeugung von der Bedeutsamkeit akademischer Qualifikationen gestärkt und eine Erwartungskrise unter den Schülern ausgelöst. Plätze für Schüler, die die höhere Sekundarstufe (Sixth Form) weiterbesuchen möchten, reichen nicht aus, es mangelt an alternativen Berufsausbildungsmöglichkeiten und an neugeschaffenen Arbeitsplätzen für Schulabgänger. Nur drei Auswege scheinen möglich zu sein: die Verteidigungskosten zugunsten des Bildungswesens zu kürzen, Schüler zur höheren Ausbildung ins Ausland zu schicken, oder aber neue Berufs- und Ausbildungsprogramme gegebenfalls nach einem importierten Modell zu entwickeln.

---

Résumé Lorsque le Front Patriotique (ZANU - PF) parvint au pouvoir en 1980, il avait promis d'établir un enseignement primaire et secondaire gratuit et obligatoire pour tous les enfants du Zimbabwe. Le Ministère de l'Education a réussi à faire progresser de manière remarquable le taux de scolarisation, en particulier dans le second degré. Il a également décidé de permettre à tous les élèves de passer les examens du niveau O après quatre années d'enseignement secondaire. Mais en agissant ainsi, il a encouragé une croyance en l'importance des titres scolaires et une crise d'attente chez les élèves. Les places sont insuffisantes pour ceux désirant poursuivre leurs études jusqu'à la 6e classe (enseignement secondaire supérieur), un système alternatif de formation professionnelle fait défaut et le taux de création de nouveaux emplois pour les jeunes quittant l'école est inadéquat. Trois issues semblent se dessiner: augmenter le budget de l'éducation en réduisant celui de la défense, envoyer les élèves à l'étranger pour y recevoir une formation supérieure, ou bien développer de nouvelles structures d'emploi et de formation, à l'instar d'un modèle étranger notamment.

     

Refinements Introduced in the Oddy Test Methodology

The ‘Oddy test’ is an accelerated corrosion test introduced in the 1970s at the British Museum to identify materials likely to emit volatile substances that could harm museum artefacts. It is carried out in many museums all around the world, but not always using the same methodology, which makes it difficult to compare and share test results between institutions. Refinements to the Oddy test methodology have been implemented at the British Museum over the last decade and the aim of this paper is to present these and promote consistency across institutions. The modifications introduced concern the method used to wash the glassware, the preparation of the metal coupons, and standard methods for preparing samples of liquid coatings, adhesives, and adhesive tapes. Finally, conducting Oddy tests is time consuming and measures employed at the British Museum to reduce the number of materials to be tested and streamline testing are described.     

Teaching TEI to undergraduates: A case study in a digital humanities curriculum

ABSTRACT

This case study describes two iterations of a Digital Humanities (DH) “Studio” course on scholarly text encoding as a model for a DH curriculum at a small liberal arts college. Designed to accompany a three-credit humanities course, the one-credit DH Studios are taught by library faculty. The paired courses share a final project—a digital edition of a short work of literature encoded in the Text Encoding Initiative. The DH Studio creates a methodology-focused environment for students to practice information and digital literacies.     

Denominational primary schooling: The case of Trinidad and Tobago

In developing countries, the trend has been for government to assume gradual control of schools run by religious organisations, while allowing them to retain their religious affiliation. In the Caribbean, the relationship between church and state educational systems has generally been cordial. This is particularly so in Trinidad and Tobago, where almost three quarters of the primary schools are denominational: Roman Catholic, other Christian, Hindu and Muslim. However, a significant proportion of pupils do not adhere to the host faith. Demographic trends and internal migration have disturbed the previous pattern of population, but the most important factor is the influence of the Common Entrance Examination, which controls entry to secondary education. Certain primary schools achieve high pass rates and attract large numbers of applicants from all sectors of society, while School Boards and principals accept over-population and set entry criteria other than religious affiliation. Variation in curricula is limited by recently drafted requirements, the government provides the bulk of school funds, and regularly inspects all schools. Such controls may enable the present government to fulfil its intention of deemphasising the Common Entrance Examination, but it thereby runs the risk of endangering the religious tolerance engendered by the present multidenominational nature of religious schools.

---

Zusammenfassung In Entwicklungsländern ging das Bestreben der Regierung dahin, allmählich die Kontrolle über die von religiösen Organisationen geführten Schulen zu übernehmen und ihnen dabei ihre religiöse Bindung zu belassen. In der Karibik bestand bisher im allgemeinen ein herzliches Verhätnis zwischen Kirche und staatlichen Erziehungseinrichtungen. Dies gilt besonders für Trinidad und Tobago, wo fast drei Viertel der Grundschulen Konfessionsschulen sind: römisch-katholisch, anderweitig christlich, hinduistisch und moslemisch. Eine große Anzahl von Schülern gehört allerdings nicht der Glaubensrichtung der Schule an. Demografische Trends und Bevölkerungsfluktuation haben frühere Bevölkerungsmuster verändert, aber der wichtigste Punkt ist der Einfluß der allgemeinen Aufnahmeprüfung, die den Eintritt in die weiterführenden Schulen reguliert.Einige Grundschulen haben hohe Erfolgsraten und ziehen dadurch viele Bewerber aus allen Gesellschaftsschichten an, wobei Schulbehörden und Schulleiter eine Überbelegung akzeptieren und andere Aufnahmekriterien als religiöse Zugehörigkeit festsetzen. Änderungsmöglichkeiten im Curriculum sind durch kürzlich herausgegebene Anforderungsrichtlinien eingeschränkt; die Regierung zahlt den größten Teil der Schulmittel und inspiziert regelmäßig alle Schulen. Diese Kontrollen mögen es zwar der gegenwärtigen Regierung ermöglichen, ihre Absicht, die Bedeutung der allgemeinen Aufnahmeprüfung zu schwächen, zu verwirklichen, aber sie riskiert gleichzeitig, die durch die gegenwärtigen multikonfessionellen Religionsschulen ausgelöste religiöse Toleranz zu gefährden.

---

Résumé Dans les pays en développement, le gouvernement assume habituellement le contrôle continu des écoles régies par les organisations religieuses, tout en leur permettant de conserver leur adhésion religieuse. Aux Caraïbes, la relation entre les systèmes éducatifs publics et religieux est généralement cordiale. C'est particulièrement le cas à Trinité-et-Tobago, où presque les trois quarts des écoles primaires sont des écoles confessionnelles: catholiques romaines, diverses écoles chrétiennes, écoles hindoues et musulmanes. Cependant, un nombre important d'élèves n'adhère pas à la religion de l'école. Les tendances démographiques et la migration interne ont changé l'ancienne structure de la population, mais le facteur majeur reste l'influence de l'Examen général d'entrée, qui réglemente l'entrée dans le secondaire. Certaines écoles primaires ont un taux de réussite élevé et attirent de nombreux candidats issus de tous les secteurs de la société, tandis que les conseils et les directeurs d'écoles acceptent une surpopulation et fixent d'autres critères d'admission que ceux d'appartenance religieuse. La diversité des programmes d'études est limitée par des contraintes mises en place récemment, le gouvernement octroie l'ensemble des crédits à l'éducation et inspecte régulièrement tous les établissements scolaires. Pareils contrôles peuvent permettre au présent gouvernement d'imposer sa volonté pour diminuer l'importance de l'Examen général d'entrée, mails ils risquent en même temps de mettre en danger la tolérance religieuse engendrée aujourd'hui par la nature multiconfessionnelle des écoles religieuses.