Assessing the impact of the funding environment on researchers’ risk aversion: the use of citation statistics

The funding environment has a profound impact on researchers’ behavior. In particular, it influences their freedom and readiness to conduct research ventures with highly uncertain outcomes. In this conceptual paper, we propose a concise new methodology to evaluate researchers’ risk aversion based on citation statistics. The derived single-number criterion P_R is sensitive to the ratio of high impact versus average impact work, based on citation counts. We demonstrate the usefulness of P_R on a micro and meso level in the field of chemistry. P_R is a potentially valuable tool for managers in higher education, to control for the impact of their funding instruments. The conducted testing may, in addition, contribute to the literature stream dealing with the effects of peer review in the allocation of research funding. Our results support the view that peer review fosters mainstream research. However, faculties with the highest percentages of third-party funding may find ways to avoid the restrictive effects. We also find evidence that permanent positions back risky research endeavors.     

Integrating alternative assessment in a project-based learning course for pre-service science and technology teachers

This paper deals with a required methods course, based on the national curriculum of science and technology for junior high schools. The course participants are pre-service teachers who study towards a B.Sc. degree in education in science and technology parallel to their studies in one of the faculties of sciences or engineering. Working in small teams, the students carry out a project in a Project-Based Learning (PBL) environment. The final outcomes of the project are group and individual written reports, a portfolio, a multimedia presentation and a physical model. The research question was: what implementation issues and processes do higher education students encounter in a Project-Based Learning environment which involves an alternative assessment approach? Qualitative and quantitative tools for collecting data included ‘the participant as observer’ observations at the classroom, semi-structured interviews with students, questionnaire, and analysis of students' reports and products. The findings relate to the advantages of PBL from the students' point of view, the challenges students experienced and perceived while conducting their projects, and the benefits students may gain from formative assessment.     

Using Quality Systems to Improve Performance

Many organizations have adopted a wide variety of approaches in introducing selected practices for achieving control of the quality of their products and services. Some of these piecemeal applications of the Quality Sciences have been successful–to varying degrees and for a time. However, the only approach that achieves long-term success is that requiring a complete cultural change in most organizations– involving a refocusing of all activities performed by everyone toward mutually intersupportive efforts to reach a common objective. In a word, a Quality System is required. In this paper, I have attempted to portray the basic considerations involved in developing and installing such a system. This is accomplished by describing some of the background of the system concept, certain of the internal and external features of a Quality System, and, to complete the picture, a semi-fictitious recital of the experiences of a company that has decided to embark on the Quality System journey.     

A partitioning technique for defining instructional groups

A technique is presented for partitioning N students into K groups of fixed sizes using a given measure of proximity for all student pairs. The measure of proximity is typically calculated from a set of variables, such as completed curriculum units or learning style, and constitutes the data needed for a criterion of partition fit. This latter index is explicitly defined by the sum of within-group proximities and when used in conjunction with the optimization procedure discussed, homogeneous groups can be obtained that satisfy externally imposed size requirements. Finally, a simple generalization is suggested for the related task of grouping students to meet upper limit size constraints only.     

Computer support in a rural setting: A comparison of computer-assisted and handwritten evaluation reports

The present blind study compared the quality of psychoeducational reports generated under two conditions. On the average, reports written with computer assistance were rated to be of higher quality than those prepared by hand. Also presented are data validating the large expenditure of staff time on report preparation, along with estimates of the time saving that may be realized with computer assistance. The relevance of computer support to relatively isolated, rural-based clinical staff is discussed.     

Dielectrophoresis of DNA: Quantification by impedance measurements

Dielectrophoretic properties of DNA have been determined by measuring capacitance changes between planar microelectrodes. DNA sizes ranged from 100 bp to 48 kbp, DNA concentrations from below 0.1 to 70 μg∕ml. Dielectrophoretic spectra exhibited maximum response around 3 kHz and 3 MHz. The strongest response was found for very long DNA (above 10 kbp) and for short 100 bp fragments, which corresponds to the persistence length of DNA. The method allows for an uncomplicated, automatic acquisition of the dielectrophoretic properties of submicroscopical objects without the need for labeling protocols or optical accessibility.