Psychosocial work factors, physical work load and associated musculoskeletal symptoms among home care workers

This study was based on a questionnaire and included a group of home care workers (HCW) (n = 305) and a reference group of municipal employees (n = 694). The relationship between the work environment and musculoskeletal symptoms was analysed. The HCW were less satisfied with their control over their work and stimulus from their work and had a higher physical work load and prevalence of musculoskeletal symptoms, compared with the reference group. The Rate Ratio (RR) of neck and shoulder symptoms among HCW was 83 and 54 %, respectively, higher among those reporting a "high" psychological work load compared with those reporting a "low" load. The highest RR for a single risk indicator was 2.5, and this concerned low-back symptoms among HCW who often worked with twisted postures. A combination of "poor" psychosocial work environment and "high" physical work load produced the highest RR for work-related neck (RR = 2.57) and shoulder (RR = 2.13) symptoms.     

FORMALIZATION OF HILBERT'S GEOMETRY OF INCIDENCE AND PARALLELISM

Three things are presented: How Hilbert changed the original construction postulates of his geometry into existential axioms; In what sense he formalized geometry; How elementary geometry is formalized to present day's standards.     

Tough love: The behavior control justice motive facilitates forgiveness in valued relationships

When individuals in valued relationships are transgressed against, how are they able to protect the relationship while at the same time restore justice for themselves? Study 1 (N = 137) employed a recall design to demonstrate that when victims restore justice, the well‐established association between relationship value and forgiveness can be explained indirectly through a motivation to control future behavior. Studies 2 (N = 122) and 3 (N = 115) replicated this finding using experimental designs, manipulating two distinct facets of valued relationships: the fact that they are continuing and close. There were no indirect effects for two alternative justice motives, just deserts and revenge. We discuss implications for relations between justice and forgiveness in the context of interpersonal relationships.     

Feelings of injustice after violation of succession rules in simulated organizations

In previous studies (e.g. Bruins and Wilke, 1993) it was established that in hierarchically structured groups, power aspirations towards a high power position are stronger for the next most senior person than for lower positioned others, that, is, support was found for Ng's (1977) bureaucratic rule. In the present study the persistence of the bureaucratic rule is demonstrated in simulated organizations with different succession rules. In addition, it appeared that when the least powerful member of the organization was assigned to a vacant high power position, members' feelings of injustice were stronger in conditions in which the succession rule had been violated, but interestingly, these feelings were not dependent on members' own positions.     

Cooperation,ethnic salience and generalization of interethnic attitudes

This study compared the effectiveness of three theoretically-based conditions of intergroup cooperation in bringing about generalization of ethnic outgroup attitudes from a cooperation partner to the outgroup as a whole. Twenty-seven pairs of Dutch secondary school pupils were assigned at random to work together in triads to solve two word puzzles. The triads consisted of one Turkish pupil, always a confederate, and two Dutch pupils. The three conditions varied according to whether reference was made to the ethnic background of the confederate in both an introductory conversation and in the conversation-break between puzzles (High–High salience); only in the later break (Low–High); or not at all (Low–Low). Results show no differences between conditions in attitudes towards the partner, which were quite positive. However, attitude change only generalized in the two conditions in which ethnic membership was made salient (Low–High and High–High, which did not differ). These findings are discussed in terms of different models of intergroup contact, and how contact may actually work.     

The epistemic status of inter-item correlations in Eysenck's Personality Questionnaire: the a priori versus the empirical in psychological data

Judgements of the semantic relatedness of items in Eysenck's Personality Questionnaire and the corresponding inter-item correlations were found to be significantly related. The results are taken to indicate that the inter-item correlations are knowable a priori and, hence, are not empirical. It is also argued that the reported findings themselves are knowable a priori , and that the study, therefore, is pseudoempirical, that is, attempts to test necessarily true propositions empirically. The study was intended to demonstrate concretely the distinction between a priori and empirical in psychological data, and to indicate the confusion arising when that distinction is not made.     

Psychometric features related to the acute phase and final outcome of anorexia nervosa

The MMPI responses of a poor and good final outcome group from a follow-up study of anorexia nervosa were compared with responses of a group of anorexic patients in the acute phase. The poor outcome group produced elevated scores in the psychopathological range except on scales 4, 5 and 9. No elevations occurred in the good outcome group and the MMPI thus discriminated significantly between different kinds of final outcome of anorexia nervosa. The profile of the patients in the acute phase at time of testing was not significantly different from the poor outcome group profile. In order to improve the predictive validity of the MMPI related to anorexia nervosa, the paper points to possible directions for further research.     

Tool use by chimpanzees (Pan troglodytes) of the Arnhem Zoo community

Abstract: Chimpanzees have a large repertoire of tool-use behaviors. This study reports on the variety and the extent of tool use exhibited by the chimpanzees of the Arnhem Zoo community in The Netherlands, living in an enriched captive setting since 1971. The use of tools by 29 chimpanzees aged from 0 to 37 years was observed. We identified 13 types of tool use comparable to those found in the wild. Some of these types of tool use seem to be specific to this community, and can be explained by the ecological characteristics of this captive setting. Chimpanzees started to use tools from the age of 2 years. Young chimpanzees, from 5 to 9 years old, showed a greater repertoire of tool use than infants and adults. All types of tool use in the community have appeared by the age of 10, the age of puberty for chimpanzees. Multivariate analysis was applied for the 29 individuals by 13 types of tool use in a one-zero matrix. The results show two major categories of tool use, one in a practical or substantial context and the other in a nonpractical or play context. The subjects clustered into groups reflecting developmental stages, although there are great individual differences. In conclusion, this captive community provides a unique opportunity to clarify the details of tool use by chimpanzees.     

An application of a discriminant analysis, based on the weighted H-index—a reanalysis

Abstract.— A discriminant-analysis method for dichotomized data, based on the weighted H -index as the similarity measure between two persons, is introduced. The weight assigned each item is a strictly increasing function of the absolute value of its D -estimate. Here, only power functions are used. The method which is called the WHIDD-analysis, is applied to some clinical data (Jonsson, 1975). The power of 3 produces a correct classification of all 32 persons in the validation group.