MOMENT ESTIMATION IN THE CLASS OF BISEXUAL BRANCHING PROCESSES WITH POPULATION–SIZE DEPENDENT MATING

This paper concerns the estimation of the offspring mean vector, the covariance matrix and the growth rate in the class of bisexual branching processes with population‐size dependent mating. For the proposed estimators, some unconditional moments and some conditioned to non‐extinction are determined and asymptotic properties are established. Confidence intervals are obtained and, as illustration, a simulation example is given.     

The Mexico of "the other side": Mexican immigrants in the United States

"The purpose of this work is to explore the advantages and disadvantages of... Mexican immigrant workers for the economy and the political and cultural status quo of the United States. The Mexican immigrant workers pose a dilemma for the United States. On the one hand, the United States needs them for a better functioning of its economy. On the other, the Mexican immigrant workers represent a racial, cultural and political challenge to the American 'establishment'.... Given the magnitude of the problem which the Mexican immigrants represent and the intense debate surrounding it, the cheap labour they represent for the economy of the United States and the unsolved conflicts this provokes, are fertile ground for the analysis of the economic, political and cultural interests competing for the degree of flexibility or the amount of policing the Mexican border should have." (SUMMARY IN ENG AND FRE)     

Predictors of Quality of Life in Different Age Groups Across Adulthood

This study examines the Quality of Life (QOL) of 374 individuals from a generational perspective. Using a nonexperimental design and multiple regression analyses, the results indicated that social support is the highest preditor of QOL for all generations. As for specific generational groups, in addition to social support, income was observed as a QOL predictor for young adults; marital status was a significant predictor for the middle-aged adults, and income emerged as the important predictor for older adults. These results offer valuable insights for the planning and implementation of Intergenerational Education Programs with the aim of increasing QOL across adulthood.     

Canadian University Acknowledgment of Indigenous Lands,Treaties, and Peoples

At many Canadian universities it is now common to publicly acknowledge Indigenous lands, treaties, and peoples. Yet, this practice has yet to be considered as a subject of scholarly inquiry. How does this practice vary and why? In this paper we describe the content and practice of acknowledgment, linking this content to treaty relationships (or lack thereof). We show that acknowledgment tends to be one of five general types: of land and title (British Columbia), of specific treaties and political relationships (Prairies), of multiculturalism and heterogeneity (Ontario), of no practice (most of Quebec), and of people, territory, and openness to doing more (Atlantic). Based on these results, we conclude that the fluidity of acknowledgment as a practice, including changing meanings depending on the positionality of the acknowledger, need to be taken into account. Plusieurs universités Canadien pratique une reconnaissance des territoires, des traités, et des peoples autochtone en publique. Cette pratique, cependant, n'a jamais été considérée comme une enquête savante. Dans ce projet nous regardons comment les reconnaissances varie par institution et pourquoi. Nous trouvons qu'il y a un lien entre le contenu des reconnaissances et les relations traité. On démontre cinq forme des reconnaissances: territoire et titre (Colombie britannique); traité spécifique and les relations politiques (Prairies); multiculturalisme et hétérogénéité (Ontario); l'absence (la majorité du Québec); et des peoples, territoire et volonté a plus faire (Atlantique). Nous concluons que la fluidité de la reconnaissance, comme pratique, est fluide et doit prendre en considération la position de la personne qui le fait.     

Overeducation,Skills and Wage Penalty: Evidence for Spain Using PIAAC Data

Despite well documented high levels of socioeconomic inequalities, health gradients by socioeconomic status (SES) in contemporary China have been reported to be limited. Using data from the 2010–2012 China Family Panel Studies, we reexamine associations between three sets of SES—human capital, material conditions, and political capital—and self-rated health among Chinese adults 18–70 years old, capitalizing on anchoring vignette data to adjust for reporting heterogeneity. We find strong evidence of substantial variations in reporting behaviors by education, cognition, and family wealth but not by family income or political capital. Failing to correct for reporting heterogeneity can bias the estimates of SES gradients in self-rated health as much as nearly 40 %. After vignette adjustment, we find significantly positive associations of education, family income, wealth, and political capital with self-rated health. Individuals’ cognitive capacity, however, does not predict self-rated health.     

Exploring the Interaction Between Volunteering Status,Paid Job Characteristics and Quality of Volunteers’ Motivation on Mental Health

The literature on the health-promoting effects of community work has primarily dealt with the population in retirement age, yet the vast majority of volunteers are people still in the workforce. The aim of this study is to observe the relationship between volunteering and health within the context of working life, considering paid work conditions and motives to volunteer as moderating variables. We conducted an online survey with a sample of Swiss workers employed in different industries. Results show that volunteers with self-determined motives (but not with controlled motives) report lower levels of stress and burnout than non-volunteers. Moreover, volunteers in general (regardless of the quality of motivation) report higher levels of work engagement and well-being. Analyses further reveal an interaction effect for burnout and stress, where the difference between self-determined volunteers and non-volunteers becomes larger with unfavorable working conditions at their paid job, hinting at potential compensatory effects. Implications for future research and the voluntary sector are discussed.     

Prevalence and Correlates of Gambling Problems Among a Nationally Representative Sample of Brazilian Adolescents

The objectives of the study are: (a) to provide the first prevalence estimates of pathological gambling among Brazilian adolescents using an age-specific instrument in a nationally representative sample; (b) to investigate the extent to which adolescents participate in gambling activities in a developing country; and (c) to correlate different levels of gambling behavior with demographic variables. Multistage cluster sampling selected 3,007 individuals over 14 years of age from Brazilian household population. A total of 661 participants were between 14 and 17 years old. The Lie/Bet Questionnaire and the DSM-IV-MR-J were used for assessing problem and pathological gambling. 2.8% scored positive on the screening questionnaire, while 1.6% were classified as problem and pathological gamblers. Factors associated with problem and pathological gambling were male sex, not currently studying and considering religion as not important. Less than 4 months elapsed between the age of regular gambling involvement and the first gambling problem. Prevalence rates were quite similar from recent studies which used nationally representative samples. The association of problem and pathological gambling with male sex, school drop-out and low religiosity supports the Problem Behavior Theory. The fast progression to problem gambling adds evidence that adolescents may be more vulnerable to the effects of gambling.     

Media and Professional Interest in Homelessness over 30 Years (1974–2003)

Media and professional interest in homelessness represent important sources of data that may be useful in understanding broader societal factors influencing this pressing social issue. The present study examined the volume and content of coverage of homelessness in four major newspapers and the professional literature indexed in PsycINFO over the past 30 years. Media coverage showed a steep increase during the mid-1980s, a steady decline throughout the late 1980s and into the 1990s, and a plateau since the mid-1990s. Professional coverage demonstrated a less pronounced and delayed pattern of growth, with no sign of decline during the past decade. Content analysis of 574 newspaper articles revealed a sympathetic focus on deinstitutionalization and other structural causes of homelessness during the period of increasing coverage in the mid-1980s, as well as positive media coverage in terms of an emphasis on critical programs and services during more recent years. Content analysis of 324 professional journal articles showed that deficits and deviant characteristics of homeless people were discussed to a significantly greater extent than the structural causes of homelessness over the entire 30-year time period. Possible interactions among media coverage, professional interest, public opinion, the prevalence of homelessness, and policy initiatives are discussed.     

Radio and Advertising in Colombia

Over the last few decades radio has becomeone of the primary means of mass communication in Latin America, able to reach euen the remotest rural populations because of the transistor. Colombia, where ninety-one percent of the homes in the seven largest cities have at least one radio, has also been heavily impacted by this modern technological phenomenon, Elssy Bonilla de Ramos focuses on radio advertising as a means of characterizing the relationship between radio and the Colombian economic sector. She argues that private companies who own most of the country's stations and networks influence programming and advertising in order to widely promote products which they produce. She believes that in many cases these products are not necessary to the consumers'well-being but are advertised in a way to make them more desirable. The authorgives a brief history of commercial radio in Colombia during the last fifty years, stating that early in its development programming underwent significant changes in order to capture an expanded audience. Comedy, sports, news, soap operas, classical and popular music, and quiz shows soon dominated the airways to the exclusion of programming that could play a role in the political, social and economic development of the country. She contends that industries that owned radio were intent on training for consumption and she uses a week's sample of programming and advertising to illustrate her point.     

On the Strong Consistency of Ridge Estimates

In this article, we establish strong consistency of the ridge estimates using extended results for the strong consistency of the least squares estimates in multiple regression models which discard the usual assumption of null mean value for the errors and only requires them to be i.i.d. with absolute moment of order r (0 < r ? 1).