Biomechanical analysis of older adults stepping up: a method of evaluating balance

The aim of this study was to analyze differences in biomechanical parameters between elderly and control participants when stepping up, to evaluate control of balance. Eleven control and 14 elderly participants performed a step from an initial static posture onto a 7-cm-high force plate. For the spontaneous-velocity condition, elderly participants performed a slower progression velocity than control participants. Elderly participants spent proportionally more time in stance phase, with a corresponding decrease in swing phase, than the control participants, irrespective of movement velocity. In contrast, at spontaneous velocity the parameters related to ground-reaction force (GRF) showed that anteroposterior and mediolateral forces at toe-off of the support limb and the slope of vertical force during weight transfer were significantly smaller for the elderly than for control participants. These GRF parameters depended on the stepping-up velocity. The elderly develop a spatiotemporal strategy and reduced movement velocity to control support balance.     

Regional Dispersion of Industrial Labour Costs in the European Community (1988)

ABSTRACT: The aim of this paper is to present a measure of regional labour costs in manufacturing industry in the European Community in 1988. As raw data, derived from the Eurostat Labour Cost Survey, are strongly dependent on sectoral distribution of employment in each region, a method is presented, based on reweighting techniques and loglinear modelling, to eliminate the composition effect. As a result, a regular geographical pattern does emerge. The same type of technique is then applied to the evolution of regional labour costs between 1984 and 1988; some correlation does appear with regional unemployment levels in the United Kingdom and France, pointing the way towards further research.     

Gini’s concentration index and the measurement of the distance between relative price vectors

A new measure is developed for the distance between relative price vectors. It is shown to be related to Gini’s Index of Concentration and is applied to cross-country data for the year 1975.     

Business teaching in the CIS States

The author draws on his experience teaching business concepts to executive students from former centrally-planned economies of the Confederation of Independent States, particularly Tashkent. Several lessons can be learned. Most important is that the students' perceptions of Western business knowledge is very different from those in the West. To bridge these different perceptions, the author suggests starting from a common knowledge base, using only concrete and specific work situations, making tacit knowledge explicit through imagination, analogies and metaphors, and giving priority to the process of introducing new business practices.     

WebStress: a web interface to explore a multidatabase bibliographic corpus on occupational stress

A bibliographic study on a multidisciplinary subject, such as occupational stress, requires a multidatabase query facility. Given this, we searched eight databases belonging to different fields (medicine, psychology, etc.) and from different countries. Thus, more than 26000 references on occupational stress were gathered. A bibliographic corpus of this sort is unusable because of the heterogeneous format of the records and the number of duplicate entries. Considering the limitations of commercial programs, we have developed a system, called WebStress, for reformatting the data and removing duplicates. The huge number of references and the research needs of updating and searching have necessitated the addition of several other functions to WebStress. Therefore WebStress comprises a web interface that makes it possible to search the corpus with advanced features (using clustering, a specialized thesaurus on stress and Boolean queries). In addition to the usual bibliographic queries on a specific database such as Medline, WebStress provides bibliometric analysis of the corpus, which might contribute to a detailed analysis on occupational stress in order to highlight the networks of researchers and to find the main topics studied in this area. WebStress is not yet available to researchers in general. It is being further developed, and also permission needs to be obtained from the eight commercial bibliographic databases that it consults.