The article explores doctoral attrition in South Africa, investigating and comparing the attributions of attrition of doctoral students and PhD programme leaders. The article is based on secondary data analysis of two large studies on doctoral education in South Africa. The main point of the article is that the different understandings of the students and the PhD programme leaders, as well as t...

This paper analyzes data on 11,600 students and their teachers who were randomly assigned to different size classes from kindergarten through third grade. Statistical methods are used to adjust for nonrandom attrition and transitions between classes. The main conclusions are (1) on average, performance on standardized tests increases by four percentile points the Žrst year students attend small...

We are grateful to the New York City Department of Education and the New York State Education Department for the data employed in this paper. The research is supported by funding from the Carnegie Corporation of New York, the National Science Foundation, the U.S. Department of Education and the Spencer Foundation. The views expressed in the paper are solely those of the authors and may not refl...

AIM To determine the prevalence of different etiological factors of dentin hypersensitivity in patients and to provide information on their association with dentin hypersensitivity. METHODS AND MATERIALS Twenty-nine patients (17 male, 12 female) suffering from pain of dentin hypersensitivity were recruited to participate in the study. A relevant history was taken and dentin hypersensitivity c...

Drawing on empirical research into the strategies of leading UK newspaper groups, this article examines the means by which such firms, through processes of attrition in old and investment in new resources, have gradually re-invented themselves as digital multiplatform entities. It analyses how the adoption of a multiplatform distribution strategy is affecting organization of production activiti...

Human dentitions from Oakwood Mound were examined to ascertain dental health in this population. Attrition rate, carious lesions, and antemortem tooth loss were scored for each adult. No significant differences were present between the aforementioned variables by age or sex. The attrition rate supports the hypothesis that the individuals interred in Oakwood Mound shared similar subsistence stra...

Dental disease and its prevention and treatment comprises approximately 10% of the general equine practitioner’s work. The most common disease affecting the equine hypsodont teeth is the development of dental overgrowths. Brachydont dentition (canines and wolf teeth) are less often diagnosed with dental disease. Gingivitis and periodontal disease as seen in many young horses can affect any toot...