Marshall–Olkin bivariate Weibull distributions and processes

In this paper we introduce a new probability model known as type 2 Marshall–Olkin bivariate Weibull distribution as an extension of type 1 Marshall–Olkin bivariate Weibull distribution of Marshall–Olkin (J Am Stat Assoc 62:30–44, 1967). Various properties of the new distribution are considered. Bivariate minification processes with the two types of Weibull distributions as marginals are constructed and their properties are considered. It is shown that the processes are strictly stationary. The unknown parameters of the type 1 process are estimated and their properties are discussed. Some numerical results of the estimates are also given.     

Citizenship of Roma after the split of Czechoslovakia: A social problem to be faced by other multinational states

The division of Czechoslovakia into two independent republics in 1993 has far-reaching implications for the citizenship rights of the Roma and Sinti minority population. During the period of so-called socialism, their situation developed very differently from that of related groups living in Western Europe as their cultural identity was totally destroyed by the paternalism of the communist regime. The fundamental political change in 1989, and the advent of a market economy, affected the Roma population more than other Czech citizens. With the ending of a joint federal nationality many Roma living on Czech territory, being regarded as of Slovak origin, lost their citizenship status totally. To acquire Czech citizenship stringent conditions were applied which they were unwilling or unable to meet. The discriminatory nature of the nationality law in the Czech Republic was criticized by European Union and human rights experts, and some non-governmental organizations have also taken up the case. This paper raises fundamental issues of legally sanctioned exclusion and discusses the implications of citizenship concepts for other post-communist countries.     

The development of an ethnically sensitive approach in social work in Slovenia

The paper presents an ethnically sensitive approach in social work within the Slovenian context. The main focus of an ethnically sensitive approach is an anti-racist perspective and is based on the critical analysis of processes that maintain the status quo in social work with members of ethnic groups. This approach also involves user perspectives with particular emphasis on the views and experiences of ethnic group members and with a particular interest in how they perceive social work services and how social work services meet their needs. Despite the rise of anti-racist social work education in Anglo-Saxon countries in the 1980s, the Slovenian system of social work education remains without adequate literature on this field. The author suggests that practice in the field of social work with minority ethnic groups is often racist, especially when social service users are members of the Roma ethnic group.     

Precision Index in the Multivariate Context

General multivariate quantiles are employed to extend the classic univariate process precision index to the multivariate context under very mild conditions. Using halfspace depth regions for this purpose is especially recommended because it leads to both computational simplicity and natural generalizations to the tool-wear setup thanks to some recent advances in multiple-output and projectional quantile regression. A few examples are included to illustrate how the methodology might work in practice.     

Discrimination among bivariate beta-generated distributions

Some properties of the general families of bivariate distributions generated by beta dependent random variables are derived and discussed here. Some classic measures of dependence and information are derived, and their behaviours and properties are discussed as well. Finally, a discrimination procedure within this general family of bivariate distributions is proposed based on Shannon entropy. A real-life example is presented to illustrate the model as well as the inferential results developed here.     

What Types of Pornography Do People Use and Do They Cluster? Assessing Types and Categories of Pornography Consumption in a Large-Scale Online Sample

Previous research on exposure to different types of pornography has primarily relied on analyses of millions of search terms and histories or on user exposure patterns within a given time period rather than the self-reported frequency of consumption. Further, previous research has almost exclusively relied on theoretical or ad hoc overarching categorizations of different types of pornography, when investigating patterns of pornography exposure, rather than latent structure analyses of these exposure patterns. In contrast, using a large sample of 18- to 40-year-old heterosexual and nonheterosexual Croatian men and women, this study investigated the self-reported frequency of using 27 different types of pornography and statistically explored their latent structures. The results showed substantial differences in consumption patterns across gender and sexual orientation. However, latent structure analyses of the 27 different types of pornography assessed suggested that although several categories of consumption were gender and sexual orientation specific, common categories across the different types of pornography could be established. Based on this finding, a five-item scale was proposed to indicate the use of nonmainstream (paraphilic) pornographic content, as this type of pornography has often been targeted in previous research. To the best of our knowledge, no similar measurement tool has been proposed before.     

A generalized semi-Pareto minification process

In this paper a generalization of the semi-Pareto autoregressive minification process of the first order is given. The necessary and sufficient condition for stationarity of the process is determined. It is shown that the process is ergodic and uniformly mixing. The joint survival function and the joint density function of the random variables X _n+h and X _n are determined. The extremes of the random variables X ₁, X ₂, ..., X _n and the geometric extremes of random variables X ₁, X ₂, ..., X _N are derived and their asymptotic distributions are discussed. The estimation of the parameters is discussed and some numerical results are given.     

Distressing Sexual Difficulties in Heterosexual and Non-Heterosexual Croatian Men: Assessing the Role of Minority Stress

Although research has shown a connection between minority stressors and internalizing mental health problems, the role of minority stress has mainly been neglected in the assessment of sexual problems among non-heterosexual men. Using online samples of heterosexual (n = 933) and non-heterosexual participants (n = 561) aged 18 to 50 years, this study aimed to comparatively assess sexual difficulties and problems and explore the role of minority stress in non-heterosexual men's sexual problems. Although the age-adjusted odds of reporting rapid ejaculation, delayed ejaculation, and sex-related anxiousness significantly differed between the two groups, the overall prevalence of sexual difficulties and the associated levels of distress did not significantly differ between the samples. In multivariate assessment, anxiety and depression significantly increased the odds of reporting distressing sexual difficulties among both heterosexual and non-heterosexual participants. In the non-heterosexual sample, positive body image significantly decreased the odds of experiencing sexual problems. Pointing to a role of minority stress, highest levels of victimization related to sexual orientation increased the risk of sexual problems. This association was partially mediated by negative emotions. Our findings offer some support for a recent call to include sexual orientation among the social determinants of health recognized by the World Health Organization.     

CONSUMING WESTERN IMAGE OF WELL-BEING - SHOPPING TOURISM IN SOCIALIST SLOVENIA

The text deals with theoretically and empirically overlooked theme from everyday life in the time of socialism – the shopping tourism. In general, consumption became analytically interesting only lately through cultural studies and consumption in socialism was overlooked due to several ideological, sociological and other prejudices against studying consumption and everyday life in socialism. However,shopping tourism seems to be allembracing and complex phenomenon from everyday life in socialism. It is a complex of numerous practices, used by individuals to improve standard of living (especially a lack of good on the market), with great deal of creativity, manipulation and effort. The analysis is in this context concerned above all with the meanings of shopping tourism, objects of shopping as understood by consumers.