Prolog programming techniques

In this paper we introduce the concept of a Prolog programming technique. This concept is then distinguished both from that of an algorithm and that of a programming cliché. We give examples and show how a knowledge of them can be useful in both programming environments and in teaching programming skills. The extraction of the various techniques is outlined. Finally, we discuss the problem of representing techniques where we conclude that the most promising approach is the development of a suitable meta-language.     

Experiments of two-level training in Hungarian higher education

An experiment designed to train engineering students to two levels of terminal achievement within single institutions is reported. The operative engineers (formerly high level technicians) qualify after three years whilst research and development engineers (fully qualified engineers) take five years. Organisational and curricular problems necessarily created by such integrated schemes are described and discussed. Social attitudes in society in general and in the student body in particular make the task of directing students towards the shorter form of training complex and difficult. From the experience gained so far it can confidently be asserted that the experiments in two-level training have been successful.Note by the Editor: This article is an abbreviated version prepared by the Editor of a 90-page UNESCO (copyright) report with the same title, Document ED. 75/WS/64, dated October 1975. We are grateful to the authors and to UNESCO for permission to print this summary of the report.     

The concept of development and the development of concepts. Education and development in Vygotsky’s thinking

A major theme of Vygotsky’s research in the latter part of his life was the theme of concept formation or conceptual development in child development. He argued that the acquisition of mature scientific (academic) concepts forms the crowning achievement of adolescsence. Mature conceptual thinking positively influences the cognitive domain but also the aesthetic reactions and emotions. Conversely, the breakdown of conceptual thinking in pathology will lead to severe intellectual impairment but also to emotional dullness etc. In this paper it is claimed that this view is highly interesting but a number of criticisms are raised. Specifically, it is argued that (1) the resulting view is overly rationalistic; (2) the notion of scientific concepts seems to imply a somewhat static view of science; and (3) Vygotsky was perhaps too optimistic about the possibility of transfer of scientific (conceptual) thinking to other domains.     

The Validity of Comparative Educational Studies

What are the conditions that will allow for appropriate comparisons among groups" Should the concept of comparative validity be added to the lexicon of the psychometrician"     

Exploring the Influences of a Partner-Based Teacher Credential Program on Candidates’ Performance Outcomes

The study compared candidates in a 4-year undergraduate program for secondary mathematics and science teaching, based on the UTeach model, with candidates in a 1-year postbaccalaureate program at the same institution. Candidates in the undergraduate program participated in a partnership of university mathematics, science, and education departments and intensive field-based experiences in high-needs schools. We conjectured that this approach would better prepare prospective teachers to develop beginning teacher competencies. Analysis of the Performance Assessment for California Teachers Teaching Event identified few differences between candidates in both groups. Surveys revealed significant differences between candidates’ perceptions of their preparation for teaching. These findings suggest that different program models can offer differential support to prospective teachers but how the program features are enacted influences the impact that these programs have on teacher preparation.     

Managing misspelled queries in IR applications

Our work concerns the design of robust information retrieval environments that can successfully handle queries containing misspelled words. Our aim is to perform a comparative analysis of the efficacy of two possible strategies that can be adopted.     

A Multidimensional Analysis of the Disability Digital Divide: Some Evidence for Internet Use

Over the last few years, information and communication technologies have become an essential part of daily life, affecting education, employment, and leisure, among other activities. Nonetheless, many individuals still reap few or no benefits from these technologies, and there are resilient gaps in their use. Within this larger context, the authors examine the Internet digital divide between people with and without disabilities from a multidimensional approach. Rather than analyzing the gap in terms of “haves” and “have-nots,” a range of Internet-related dimensions—affordability, motivation and attitudes, skills, usage, and others—is taken into account.     

Evaluating a monolingual multinational digital library by using usability: An exploratory approach from a developing country

In this paper the authors present a preliminary discussion on some of the results from a survey aimed to explore, describe and explain some of the usability characteristics in digital libraries evaluation in the Mexican context. The study is framed in the evaluation of a multinational and monolingual digital library: the Miguel de Cervantes Virtual Library, from the University of Alicante in Spain. The evaluators were Mexican “expert” users (i.e. Spanish-speaking professional university librarians specialized in electronic reference services) who were asked to carry on an evaluation instrument based on usability criteria as taken from some models in developed countries. Some questions that might be answered with future research are outlined in this paper.     

Influence of a stressing constraint on stiffness and damping functions of a ski simulator's platform motion

The aim of this study was to assess the effect of stress on a previously acquired motor coordination. Following a longitudinal learning experiment, four participants performed oscillations on a ski simulator, either in normal or stressful conditions. The results showed that the amplitude of the oscillations decreased under stress, but no significant effect was seen regarding coordination, suggesting the strong resistance to stress of overlearned behaviour. Nevertheless, for one participant, a transient regression towards a former stage of learning was observed. This result was consistent with the regression hypothesis formulated by Fuchs (1962).