Healthy lower backs in the construction industry in Sweden

This corss-sectional study exmaines the relationship between healthy lower and psychosocial and physical factors in a random sample of 1773 male construction workers. Infoamtion on lower back status, lifestyle habits, stress, psychosomatic and psychological symptoms, psychosocizal demands and resoruces and physical workload were collected by means of a postal questionnaire. Measures of psycholocial and physical factors were based on factor analysis of the data. The criterion variable 'healthy lower back' (HLB)—no lifetime history of low back pain—proved to be valid compared with an interview and a physical examination. A total of 216 workers (12%) reported HLB. The prevalance rate decreased significantly with increasing age. The prevalence rate of HLB was 6% among workers reporting high stress levels. It was postively influenced when there was a balance between demands and resoruces. A low level of physical workload also increased the prevalence rate of HLB. When age, lifestyle and physical factors were kept constant in a multivariate analysis high scores on the discretions index and low scores on eh psychosomatic, psychological and stress indices cosntributed significantly to an increase prevalence rate of HLB.     

Sampling properties of estimators of the log-logistic distribution with application to Canadian precipitation data

We consider the probability-weighted moment and the maximum-likelihood estimators of two parameters in the log-logistic distribution. Quantile estimators are obtained using both methods. The distributional properties of these estimators are studied in large samples, via asymptotic theory, and in small and moderate samples, via Monte Carlo simulation. The distribution is shown to be appropriate for a wide variety of meteorological data.     

Head movement during listening turns in conversation

In five subjects, head movement during conversation was monitored by polarised light goniometry, and recorded alongside speech and a signal proportional to peak amplitude of sound waves (peak loudness). Kinematic properties of listeners' head movements, such as amplitude, frequency and cyclicity, differentiated various conversational functions. That is, they were function-specific: symmetrical, cyclic movements were employed to signal yes, no or equivalents; linear, wide movements anticipated claims for speaking; narrow linear movements occurred in phase with stressed syllables in the other's speech (ynchrony movements); and wide, linear movements occurred during pauses in the other's speech. That, it is argued, bears upon the relation between thesignalling of communicative intentions and the synchronisation of interactional rhythm. Thus, the former appears to determine the timing and tempo of responses such as yes and no, while the latter determines the regulation of synchrony movements. The manner in which these factors interact in other conversational functions and their theoretical implications are discussed.     

Participation in ethnic associations: the case of immigrants in West Germany

This paper gives the results of a 1981-1982 study of Greek, Italian, and Turkish immigrants in West Germany. Ethnic organizations such as those that presently exist in large numbers in West Germany are often viewed as indicating a lack of social integration and participation by immigrants in the host society. Whether these organizations segregate the immigrants and make their assimilation more difficult, as research on minority groups often claims, or whether they serve as mediating institutions to help integrate and assimilate the newcomers, as other theories would lead one to expect, will depend on the basic orientation of the ethnic organization itself toward the host country. Results indicate the distinctive characteristics of the organizations serving each of these 3 different groups, the extent to which persons of each nationality participate in these associations, the reasons they give for their participation, and the ways in which participation in organizations with different organizations affects the social integration and assimilation of the individual immigrants. Efforts to increase and support the political activities of minority groups at the local level will have positive consequences; this would be 1 modest but decisive step toward eliminating the mutual prejudices of minority and majority group members. As long as immigrants have a clear right to remain in their host country, a secure means of existence, and recognition and acceptance as members of an ethnic minority, their heritage and pride should not be seen as an indication of any lack of identification with the dominant society.     

The fertility of migrants before and after crossing the border: the ethnic German population from the former Soviet Union as a case study

Empirical data on persons of German ethnic origin migrating to Germany from the former Soviet Union are used to calculate their relative ferility levels before and after arriving in their new host country. Despite small numbers in the survey , a suitable method was used to effecitvely compare fertility before and after crossing the border with an index measure of national fertility rates. A relatively strong fertility decline was observed for German origin migrants ( Aussiedler ) from the former Soviet Union during their first years in Germany.
More interesting, we consider, is how and to what extent the change in living conditions affected reproductive behaviour after arrival in Germany.
Surprisingly, the fertility of this former high-fertility population fell to a level much lower than the already low German fertility. The extraordinarily high fertility levels of certain religious groups within the former Soviet Union fell even more rapidly after arrival in their new home country.
The results of the study may shed light on another development in Germany: that immediately after reunification the total fertility rate in the former GDR fell to the extremely low level of about 0.6 in 1993 and 1994. The experience of the former East German population is therefore similar to that of German-origin migrants from the former Soviet Union.     

Consumer Evaluations of Food Risk Management Quality in Europe

In developing and implementing appropriate food risk management strategies, it is important to understand how consumers evaluate the quality of food risk management practices. The aim of this study is to model the underlying psychological factors influencing consumer evaluations of food risk management quality using structural equation modeling techniques (SEM), and to examine the extent to which the influence of these factors is country-specific (comparing respondents from Denmark, Germany, Greece, Slovenia, and the United Kingdom). A survey was developed to model the factors that drive consumer evaluations of food risk management practices and their relative importance (n= 2,533 total respondents). The measurement scales included in the structural model were configurally and metrically invariant across countries. Results show that some factors appear to drive perceptions of effective food risk management in all the countries studied, such as proactive consumer protection, which was positively related to consumers' evaluation of food risk management quality, while opaque and reactive risk management was negatively related to perceived food risk management quality. Other factors appeared to apply only in certain countries. For example, skepticism in risk assessment and communication practices was negatively related to food risk management quality, particularly so in the UK. Expertise of food risk managers appeared to be a key factor in consumers' evaluation of food risk management quality in some countries. However, trust in the honesty of food risk managers did not have a significant effect on food risk management quality. From the results, policy implications for food risk management are discussed and important directions for future research are identified.     

Health care trends, Part 2. The new health care team. Panel discussion

In Part 2 of this third annual panel discussion, six experts talk about the growing diversity of health care providers and what it means for consumers and physicians. Americans are getting their wellness and health care services from a wider variety of non-physician practitioners than ever before. The number of allied health and alternative providers with direct patient access is likely to continue growing. This trend is being driven by consumer demand, by the lobbying efforts of non-physician providers, and by federal, state, and private payers who see the potential for reduced health care spending, greater consumer satisfaction, and better outcomes. In practice, this means physicians and non-physician providers, some of whom may not be sanctioned by the medical establishment, are obligated to collaborate as a team. Members of this new provider team will have to communicate effectively (with each other, with consumers, and with payers) and make evidence-based clinical decisions. Physicians may have to share decision-making with other members of this new health care team.     

Is a continuous rational social aggregation impossible on continuum spaces?

This paper provides a global topological setting for the social choice theory on continuum spaces of alternatives, in contrast to the local differentiable setting of Chichilnisky. Chichilnisky proved that a rational continuous social choice must be discontinuous in her setting. Our paper revisits her theorem to trace the source of this discontinuity. We find that the discontinuity is irrelevant to social aggregation, per se. The main theorem states that there exist a number of continuous social utility maps which are anonymous and satisfy the Pareto condition. As a corollary, we show that there exist corresponding continuous social welfare functions, if singularity is not separated from regular preferences in social preference topology. This extends the possibility result of Jonnes-Zhang-Simpson on linear preferences, to the general ones. The notion of singularity of preferences, relative to the given mathematical structure of an alternative space, is carefully studied.     

Mere religiosity is not enough! Spirituality strengthens the relations between religiosity and positive youth development

Although prior research shows that either religiosity or spirituality facilitates well-being, the interaction of both constructs in predicting positive youth development (PYD) in collectivistic contexts remains unknown. This study examined the moderating role of spirituality on the link between religiosity and PYD, including each of its Cs (i.e., competence, confidence, connection, character, and caring) among 1116 Filipino adolescents. Results demonstrate that both religiosity and spirituality are positively correlated with PYD and its dimensions. Furthermore, there is a significant interaction between religiosity and spirituality for the overall PYD construct and the socio-emotional Cs (i.e., connection, character, and caring). This study highlights the importance of young people's sense of connection with something beyond than themselves (i.e., spirituality) in promoting adolescent thriving.     

论马克思最低工资理论的形成与发展

最低工资理论是马克思工资学说的重要组成部分。马克思最低工资理论经历了产生、发展、成熟和完善等几个发展阶段。马克思对最低工资的内容，它与劳动力价值的关系以及与此相联系的工人阶级经济斗争的意义都经历了一个从初步的认识到完整的科学认识的发展过程