How can history of science matter to scientists?

History of science has developed into a methodologically diverse discipline, adding greatly to our understanding of the interplay between science, society, and culture. Along the way, one original impetus for the then newly emerging discipline--what George Sarton called the perspective "from the point of view of the scientist"--dropped out of fashion. This essay shows, by means of several examples, that reclaiming this interaction between science and history of science yields interesting perspectives and new insights for both science and history of science. The authors consequently suggest that historians of science also adopt this perspective as part of their methodological repertoire.     

The relationship of value orientations,self-control,frequency of school–leisure conflicts,and life-balance in adolescence

The aim of this self-report study is to analyze proposed interrelations between value orientations, self-control, frequency of school–leisure conflicts, and life-balance in adolescence. Life-balance is defined as satisfying time investment in different life areas. The tested model posits that self-control is negatively related to conflict frequency and that the latter is negatively related to life-balance. Achievement and well-being value orientations, in turn, should be connected to the degree of self-control and the frequency of goal conflicts. In the study, 817 German 8th-graders with a mean age of 13.4 years participated. Results from structural equation modeling supported the proposed model. The results suggest that fostering self-control can be a promising approach to decrease the frequency of goal conflicts, and thus increase students' experience of life-balance.     

Avoiding procrastination through time management: an experimental intervention study

The purpose of this study was to examine the effects of a short-term time management intervention on procrastination. Procrastination is a serious issue for many students and associated with different negative consequences, such as anxiety or low grades. As procrastination is described as a self-regulatory failure, a training programme focussing on self-regulatory skills might be helpful. We randomly assigned 96 students to a treatment (n?=?47) and a control group (n?=?49). As hypothesised, participants of the control group showed procrastination: they spent more time on a self-selected, important academic task right before the deadline was reached compared to the weeks before. The participants of the treatment group, instead, allocated their work time more equally and did not show procrastination. Therefore, the explored time management intervention prevents from a serious time management problem.     

Rechtsfragen zur Studienbeitragspflicht an Universitäten

Die Neuregelung der Studienbeitragspflicht durch die Novelle zum Universitätsgesetz 2002 aus 2008 und die aus dem Jahr 2009 stammende Änderung der Studienbeitragsverordnung 2004 wirft eine Reihe offener Rechtsfragen auf. Die auf eine Begünstigung gegenüber der bisherigen Rechtslage angelegten Regelungen lassen in mehrfacher Hinsicht die erforderliche Eindeutigkeit vermissen und entbehren in ihrem Zusammenspiel unter sich und mit anderen diesbezüglich belangvollen Regelungen einer entsprechenden Regelungsharmonie. Sie machen dadurch mitunter diffizile interpretative Erwägungen erforderlich. Diese Umstände erschweren die Anwendung und damit die praktische Umsetzung der vom Gesetzgeber intendierten finanziellen Erleichterung gegenüber den Studierenden.     

Mastery of the counting principles in toddlers: A crucial step in the development of budding arithmetic abilities?

Counting abilities have been described as determinative precursors for a good development of later arithmetic abilities. Mastery of the stable order, the one–one-correspondence and the cardinality principles can be seen as essential features for the development of counting abilities. Mastery of the counting principles in kindergarten was assessed in a large group of children with a broad range of arithmetic abilities (N = 423). Not all children mastered the counting principles by the end of kindergarten. Mastery of the counting principles in kindergarten was predictive for arithmetic abilities one year later in first grade, especially for scores on arithmetic achievement tests. Children sharing a common educational background tend to have more similar scores on arithmetic tests, yet the importance of mastery of the essential counting principles in the prediction of later arithmetic achievement was the same for all classrooms.     

Skills development for poverty reduction (SDPR): The case of Tajikistan

Vocational education and training (VET) can contribute to the attainment of the United Nations Millennium Development Goals. A key to economic and social progress is the training of better-qualified individuals and skilled enterprise staff who will be more productive, improving goods, increasing incomes and adapting to changing markets. Experts from international cooperation agencies see VET projects as suitable instruments for poverty alleviation in target groups working in the informal sector and rural economy. The recent shortages and high prices of rural products in many developing countries support this position. For the past two years a skills development for poverty reduction (SDPR) project has been running in rural areas of Central Asia to address rural poverty. The approach and findings of the project are discussed against the background of the international debate on VET in the context of poverty alleviation. It is hoped that the conclusions will contribute to optimising the design, implementation, monitoring and evaluation of similar VET projects.     

A visual aid for teaching the Mann–Whitney U formula

A visual aid for teaching the formula for the Mann–Whitney U statistic is proposed, inspired by ‘proof without words’, a didactic exercise from the mathematics literature that uses a visual approach to justify mathematical statements, including formulas and theorems.