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Related Measures (relate + measure)
Selected AbstractsIn search of the wage-labour/service contract: new evidence on the validity of the Goldthorpe class schemaTHE BRITISH JOURNAL OF SOCIOLOGY, Issue 4 2000Geoffrey Evans ABSTRACT In this paper we examine new empirical evidence on the coherence and magnitude of the main classes in the Goldthorpe class schema. Particular attention is paid to issues that have recently been a source of academic dispute: the coherence and size of the service class and the distinction between the service class and intermediate classes. Using recently available British data collected by the Office for National Statistics we examine: (i) the extent to which measures of class-relevant job characteristics are empirically discriminated by the categories of the schema; (ii) the structure of a ,contract type' dimension of employment relations conceived of as a categorical latent variable; and (iii) the association between this latent variable and both the Goldthorpe class schema and a related measure,socio-economic group (SEG). We find that the data are consistent with the existence of a three category latent ,contract type' variable largely corresponding to the notions of service, intermediate and wage-labour contracts explicit in discussions of the theoretical rationale for the Goldthorpe schema. We further find a substantial degree of fit between the latent ,contract types' and the schema. However, the service class fault line appears to lie within class I and II of the schema rather than between them and the intermediate classes which suggests a revised, smaller service class would better capture the reality of the contemporary British occupational structure. [source] Automatic Light Source Placement for Maximum Visual Information RecoveryCOMPUTER GRAPHICS FORUM, Issue 2 2007P.-P. Vázquez Abstract The automatic selection of good viewing parameters is a very complex problem. In most cases, the notion of good strongly depends on the concrete application. Moreover, when an intuitive definition of good view is available, it is often difficult to establish a measure that brings it to the practice. Commonly, two kinds of viewing parameters must be set: camera parameters (position and orientation) and lighting parameters (number of light sources, its position and eventually the orientation of the spot). The first parameters will determine how much of the geometry can be captured and the latter will influence on how much of it is revealed (i.e., illuminated) to the user. Unfortunately, ensuring that certain parts of a scene are lit does not make sure that the details will be communicated to the user, as the amount of illumination might be too small or too high. In this paper we define a metric to calculate the amount of information relative to an object that is effectively communicated to the user given a fixed camera position. This measure is based on an information-based concept, the Shannon entropy, and will be applied to the problem of automatic selection of light positions in order to adequately illuminate an object. In order to validate the results, we have carried out an experiment on users, this experiment helped us to explore other related measures. [source] A systematic review of the effectiveness of brief interventions with substance using adolescents by type of drugDRUG AND ALCOHOL REVIEW, Issue 3 2003Dr ROBERT J. TAIT Abstract The aim of this paper is to evaluate the effectiveness of brief interventions (BI) with adolescents (mean age < 20) in reducing alcohol, tobacco or other drug (ATOD) use by means of a systematic review of BI for adolescent substance use in the English language literature up to 2002. We identified 11 studies involving 3734 adolescents. Follow-up ranged from 6 weeks to 24 months. Motivational interviewing was the predominant approach, underpinning eight studies: the remaining three provided personalized health information. Seven papers reported outcomes for alcohol interventions and four involved other substances (including one with separate alcohol outcomes). The overall effect size was d= 0.126 with borderline homogeneity (Q = 14.9, df = 9, p = 0.09). The effect size from the eight alcohol interventions (n = 1075) was classified as significant but "small" (d = 0.275). The remaining non-alcohol studies were considered separately as interventions involving tobacco or multiple substance use. The two interventions with tobacco involved a substantial sample (n = 2626) but had a very small effect (d = 0.037), while the two interventions addressing multiple substances involved few participants (n = 110) but had a medium , large effect (d = 0.78). Across a diverse range of settings (dental clinic, schools, universities, substance treatment centres) and, therefore, probably diverse clients, BI conferred benefits to adolescent substance users. BI had a small effect on alcohol consumption and related measures. The data for tobacco interventions suggested a very small reduction, particularly with general community interventions. The effect of BI with multiple substances appears substantial but the small sample cautions against expansive generalization. [source] Measuring health polarization with self-assessed health dataHEALTH ECONOMICS, Issue 9 2007Benedicte ApoueyArticle first published online: 20 AUG 200 Abstract This paper proposes an axiomatic foundation for new measures of polarization that can be applied to ordinal distributions such as self-assessed health (SAH) data. This is an improvement over the existing measures of polarization that can be used only for cardinal variables. The new measures of polarization avoid one difficulty that the related measures for evaluating health inequalities face. Indeed, inequality measures are mean based, and since only cardinal variables have a mean, SAH has to be cardinalized to compute a mean, which can then be used to calculate an inequality measure. In contrast, the new polarization measures are median based and hence do not require to impose cardinal scaling on the categories. After deriving the properties of these new polarization measures, we provide an empirical illustration using data from the British Household Panel Survey that demonstrates that SAH polarization is also a relevant question on empirical grounds, and that the polarization measures are adequate to evaluate polarization phenomena whereas inequality measures are not adequate in these cases. Copyright © 2007 John Wiley & Sons, Ltd. [source] Buprenorphine and methadone in the treatment of opioid dependence: methods and design of the COBRA studyINTERNATIONAL JOURNAL OF METHODS IN PSYCHIATRIC RESEARCH, Issue 1 2005Prof Dr Hans-Ulrich Wittchen Abstract Buprenorphine and methadone are the two established substitution drugs licensed in many countries for the treatment of opioid dependence. Little is known, however, about how these two drugs are applied and how they work in clinical practice. In this paper we present the aims, methods, design and sampling issues of a collaborative multi-stage epidemiological study (COBRA) to address these issues. Based on a nationally representative sample of substitution physicians, the study is designed as an observational, naturalistic study, consisting of three major parts. The first part was a national survey of substitution doctors (prestudy, n = 379 doctors). The second part was a cross-sectional study (n = 223 doctors), which consisted of a target-week assessment of 2,694 consecutive patients to determine (a) the severity and problem profiles and treatment targets; (b) the choice and dosage scheme of the substitution drug; (c) past and current interventions, including treatment of comorbid hepatitis C; and (d) cross-sectional differences between the two drugs with regard to comorbidity, clinical course, acceptance/compliance and social integration. The third part consists of a prospective-longitudinal cohort study of 48 methadone-treated and 48 buprenorphine-treated patients. The cohort is followed up over a period of 12 months to investigate whether course and outcome of the patients differ by type or treatment received in terms of clinical, psychosocial, pharmaco-economic and other related measures. The response rate among substitution doctors was 57.1%; that among eligible patients was 71.7%. Comparisons with the federal registers reveal that the final samples of doctors and patients may be considered nationally representative with regard to regional distribution, training, type of setting as well as the frequency of patients treated with buprenorphine or methadone. The COBRA study provides a unique comprehensive database, informing about the natural allocation and intervention processes in routine care and about the course and outcome of patients treated with buprenorphine or methadone. Copyright © 2005 Whurr Publishers Ltd. [source] Carisbamate, a Novel Antiepileptic Candidate Compound, Attenuates Alcohol Intake in Alcohol-Preferring RatsALCOHOLISM, Issue 8 2009Amir H. Rezvani Background:, Since 1994, when naltrexone (Revia®) was approved by the FDA for the treatment of alcoholism, only 2 other drugs (Campral® and Topamax®) have been approved for alcoholism treatment. However, various experimental drugs, including antiepileptic medications, have been tested in both animal models and in humans with some promising results. The purpose of this project was to study the effect of the novel neuromodulator carisbamate, which is in development for epilepsy treatment, on alcohol intake in selectively bred alcohol-preferring rats. Methods:, Male alcohol-preferring inbred P rats were allowed to freely drink water or alcohol (10%, v/v) using a 2-bottle choice procedure. After stable baselines for alcohol and water intakes were established, the acute effects of oral carisbamate (0, 10, 30, 45, 60, and 90 mg/kg) were assessed. Then, the chronic effect of the compound (60 mg/kg/day for 14 consecutive days) on alcohol intake was assessed in a separate group of male P rats. In another set of experiments, the effects of carisbamate and naltrexone on alcohol withdrawal-induced elevated drinking of alcohol, an index of craving, were compared. Rats were withdrawn from alcohol for 24 hours and were given vehicle, 20 mg/kg naltrexone or 60 mg/kg carisbamate 30 minutes before re-exposure to alcohol. Alcohol and water intake was measured 6 hours after alcohol re-exposure. To determine the effects of carisbamate on saccharin preference, rats were put on a 2-bottle choice of water versus a solution of 2% saccharin. Then, the effect of the highest dose of carisbamate (90 mg/kg) and naltrexone (20 mg/kg) and the vehicle on saccharin preference was determined. Results:, Our results showed that there was a selective dose-dependent reduction in alcohol intake and preference in the alcohol-preferring P rat after an acute oral administration of carisbamate. There were no significant effects on food or water intake. Chronic administration of carisbamate significantly reduced alcohol intake and preference initially, but partial tolerance developed after the 10th treatment. The degree of tolerance development was less than that observed for naltrexone. Acute administration of carisbamate was more effective than naltrexone in reducing enhanced alcohol intake after a period of alcohol deprivation. Compared with control vehicle neither carisbamate nor naltrexone had a significant effect on saccharin intake and preference. Conclusion:, The novel neuromodulator compound carisbamate has a favorable profile of effects on alcohol intake and related measures and should be considered for testing on human alcoholics. [source] The new object-spatial-verbal cognitive style model: Theory and measurementAPPLIED COGNITIVE PSYCHOLOGY, Issue 5 2009Olesya Blazhenkova The current study challenges traditional approaches to Visual-Verbal cognitive style as a unitary bipolar dimension, and instead suggests a new three-dimensional cognitive style model developed on the basis of modern cognitive science theories that distinguish between object imagery, spatial imagery and verbal dimensions. The results of the confirmatory factor analysis demonstrated that the overall fit to the data of the new three-dimensional model of cognitive style was significantly better than that of a traditional model. Furthermore, based on the new theoretical model, we designed and validated a new self-report instrument assessing the individual differences in object imagery, spatial imagery and verbal cognitive styles, the Object-Spatial Imagery and Verbal Questionnaire (OSIVQ). Across a series of studies, the OSIVQ demonstrated acceptable internal reliability as well as construct, criterion and ecological validity. The current study supports the validity of an object-spatial-verbal cognitive style dimension and related measures when developed on the basis of modern cognitive science theories. Copyright © 2008 John Wiley & Sons, Ltd. [source] The UK supermarket industry: an analysis of corporate social and financial performanceBUSINESS ETHICS: A EUROPEAN REVIEW, Issue 1 2002Geoff Moore In a previous paper (Moore, 2001), the headline findings from a study of social and financial performance over three years of eight firms in the UK supermarket industry were reported. These were based on the derivation of a 16-measure social performance index and a 4-measure financial performance index. This paper discusses the formulationof the indices and then reports on: discussions with two supermarket firms concerning the overall results; inter-relationships between individual financial performance measures; inter-relationships between individual social performance measures; stakeholder group analysis; and inter-relationships between turnover, age and gearing with social performance measures. The paper discusses these inter-relationships, incorporating comments from the interviews with the two supermarket firms, and reports on both factor and cluster analysis. The interviews lend support for Preston and O'Bannon's (1997) Available Funding Hypothesis in both its positive and negative form. The findings show that there are individual or combinations of related measures that could be used as surrogate measures for social and financial performance, instead of deriving a full index. However, the recommendation is that a full index continues to be used until there is further corroboration of these results. The findings also provide statistically significant support for the Negative Synergy Hypothesis (Preston and O'Bannon, 1997), show a statistically significant association between pre-tax profits (both lagged and contemporaneous) with community contributions, and show that all statistically significant associations between individual social performance measures are positive , suggesting that they are mutually reinforcing. The association of size with social performance, noted in the previous paper, is also reinforced. Findings in relation to the proportion of women managers and the number of women on the Board and positive associations with other social and environmental performance measures raise interesting gender issues for business ethics. Factor analysis leads to no clear conclusions but cluster does show two or three clear clusters of firms, where size would seem to be the main but not sole factor. Further areas of research are noted. [source] | |||||||||||||