Visual Aids and the Enhancement of Communication in Africa

Educational visual aids and illustrations in African institutions are mostly imported from overseas, and the few local productions tend to be Western‐orientated in style. However, research on the technical and design elements of visual aids, their cultural implications and socio‐economic factors all point to considerable differences of perception and interpretation of visuals between African and Western students. The paper discusses these differences and considers their implications to designers and producers of learning materials for African students.     

WHAT CONSTITUTES EFFECTIVE RESEARCH? A CASE STUDY

The aim of this study is to elicit from staff members and from postgraduate students their personal constructs of research effectiveness. Based on Kelly's Personal Construct Theory, the repertory grid technique was used to elicit, analyse, discuss, and negotiate individual and group constructs of research with the result of arriving at a greater group consensus and a clearer picture of shared criteria for research effectiveness.     

HIGHER EDUCATION IN CZECHOSLOVAKIA: SOME PROBLEMS OF THE TRANSITION PERIOD

The political revolution of November 1989 in Czechoslovakia brought with it a call for systemic changes in higher education, changes which were mandated by the Higher Education Law of May 1990. The Law has given institutions of higher education major academic rights and liberties and has also provided for participative management. The possibility of diversifying study and financial resources as well has also been unveiled. Nevertheless, these positive developments have given rise to problems. Both individual institutions and the system of higher education itself must become more democratic following forty years of oppressive state policies. At the same time, they are also having to face a somewhat restrictive financial situation. Willingly or not, they have to take greater initiatives towards the needs of the economy so that additional resources may be generated. In this ‘context, the new organization and the new institutions of higher education in Czechoslovakia are discussed and recommendations are made for the further development of higher education.

     

Stabilization and passification of distributed-order fractional linear systems using methods of preservation

This paper studies the stabilization and passification of a class of distributed-order linear time-invariant systems, by using methods of preservation in the frequency domain. Results about preservation of stability and passivity of classical linear time-invariant systems are extended to one more general family of matrix functions. Based on these results, a new approach to the problems of stabilization and passification of distributed-order linear time-invariant systems is presented. Also a result that extends the known techniques for pole placement of classical linear time-invariant systems to the new class of distributed-order linear time-invariant systems is given. Examples are given to show the validity of theoretical results.     

Stereotyping and Intergroup Perceptions of Disabled and Nondisabled Children: A New Perspective

This research seeks to establish relationships between the stereotypes, self‐ratings and peer‐ratings of students in an experimental secondary school attended by both disabled and nondisabled young people. To study the influence that contact with disabled classmates has upon intergroup perceptions, responses of these students were compared with those of students attending a secondary school that does not practise mainstreaming.Results vary, depending upon whether subjects were asked to attribute adjectives from a list to classmates, some of whom were disabled, or to the disabled persons in general. This research highlights the need to adopt a new approach to intergroup relations.     

AN EXPERIENTIALLY‐BASED TRAINING PROGRAMME IN CIVIL ENGINEERING

An innovative training programme providing second year students with a real taste of civil engineering practice through the construction of full‐size structures was introduced at the Nanyang Technological Institute, Singapore. Students are divided into companies, each responsible for executing the construction project for a profit, and in accordance with contract requirements in the forms of specifications and design drawings. Each company is sub‐divided into management, office and field groups. Thus the students, through a mandatory rotation of the role play, gain valuable experience in the field, office and management functions through personal involvement in such a real‐life project. To reflect the objectives of the programme, a system of assessment was developed based on the student performance at the team, group and individual levels. Due to the short history of the programme and since a true test of the effectiveness of this type of training is through the performance of the graduates, a summative evaluation is difficult to make at the present time. However, some interim feedback from the students, staff members and industrialists on students’ performance subsequent to their second year course work suggest that the programme has served well in achieving its intended objectives.     

The impact of a peer-tutoring program on quality standards in higher education

The purposes of this study were, on one had, to determine the impact of a peer tutoring program on preventing academic failure and dropouts among first-year students (N = 100), from Civil Engineering, Economics, Pharmacy, and Chemical Engineering careers; while, on the other hand, to identify the potential benefits of such tutoring program on the cognitive and metacognitive learning strategies and social skills of student mentors in their last year of studies or already in a postgraduate program (N = 41) at the University of Granada (Spain). After building and selecting the measurement instruments necessary to gather demographic and academic relevant information on both samples, and assigning first-year students to either an experimental or control group, the intervention consisted of ten 90-min tutoring sessions during the first semester lead by student tutors who, in turn, had undergone four 3-h training sessions on tutoring contents like planning and time management, cognitive and metacognitive learning strategies, motivational strategies and the use of materials designed ad hoc for this program. The results show differences in favour of the treatment group on grade point average, performance rate, success rate and learning strategies and, also, statistically significant pre-post differences for the tutors on learning strategies and social skills.