线性矩阵不等式问题的进化计算解决方法

针对决定模糊控制中稳定性的线性矩阵不等式问题,提出了用进化计算来解决模糊控制中线性矩阵不等式的新算法。实验证明,该算法解“用于实现模糊控制的增益调度和稳定性的线性矩阵不等式”是有效的。     

Strong law of large numbers and complete convergence for non-identically distributed WOD random variables

In this paper, we establish the strong law of large numbers and complete convergence for non-identically distributed WOD random variables. We derive some new inequalities of Fuk–Nagaev type for the sums of non-identically distributed WD random variables. All these results further extend and refine previous ones.     

Addressing inequality: Educators responding to the contexts of young children’s lives?

A child's early relationships and experiences influence their long-term development and learning. In Australia, some children can face complex levels of deprivation when compared to their peers. This study sheds light on how educators are responding. Data analysed consist of individual interviews with early childhood educators working in diverse communities. The findings highlight educators’ accounts of responsiveness as narrowly framed with attention focused on children's cultural heritage which overshadows other equity groups. The paper argues that by becoming sensitive to the contexts of children's lives, there is potential to build the early childhood workforce's capacity for addressing inequalities in childhood.     

Changes in the labour market and health inequalities during the years of the recent economic downturn in Italy

There is widespread concern that episodes of unemployment and unstable working conditions adversely affect health. We add to the debate by focusing on the relationship between work trajectory and the self-reported health of Italian men and women during the present economic downturn. Relying on Italian data in the EU-SILC project (from 2007 to 2010), our sample includes all individuals aged 30 to 60 in 2010, and uses multivariate binomial regression models for preliminary analyses and the Structural Equations modelling (SEM) to observe the cumulative effects of health status according to different job trajectories. Our main findings show similar pictures for men and women. Individuals who are unemployed, ejected or in precarious occupational positions have a higher risk of worsening their health status during these years.     

Inequality in digital skills and the adoption of online safety behaviors

ABSTRACT

Cyber-safety behaviors are important in preventing the loss of an individual's digital assets and ensuring the safety of important daily online activities. Individuals’ cyber-safety is also critical for national cybersecurity. The issue is highly relevant for Israel, a country that relies on the digital capabilities of its workers for its major technology industries and is also often a target of cyberwarfare and cybercrime attacks. The purpose of this study is to identify the determinants of cyber-safety behavior. We investigate the role of age, gender and education in the use of safety-related digital skills and antivirus software. Using a 2014 survey of a national sample of Internet users in Israel (N?=?1850), we found that age, gender, education and quality of access are associated with the level of users’ digital security skills. In addition, these skills and the frequency of conducting financial activities online are the main determinants of antivirus behaviors. Our results expand the understanding of cyber-safety by showing that social and digital disparities are reproduced in the use of measures to prevent online threats, putting the digitally disadvantaged at greater risk of becoming victims of online threats.     

Parenthood and Well-Being: A Decade in Review

Understanding social aspects of parental well-being is vital because parents' welfare has implications not only for the parents themselves but also for child development, fertility, and the overall health of a society. This article provides a critical review of scholarship on parenthood and well-being in advanced economies published from 2010 to 2019. It focuses on the role of social, economic, cultural, and institutional contexts of parenting in influencing adult well-being. The authors identify major themes, achievements, and challenges and organize the review around the demands-rewards perspective and two other theoretical frameworks: the stress process model and the life course perspective. The analysis shows that rising economic insecurities and inequalities and a diffusion of intensive parenting ideology were major social contexts of parenting in the 2010s. Scholarship linking parenting contexts and parental well-being illuminated how stressors related to providing and caring for children could unjustly burden some parents, especially mothers, those with fewer socioeconomic resources, and those with marginalized statuses. In that vein, researchers continued to emphasize how stressors diverged by parents' socioeconomic status, gender, and partnership status, with new attention to strains experienced by racial/ethnic minority, immigrant, and sexual minority parents. Scholars' comparisons of parents' positions in various countries expanded, enhancing knowledge regarding specific policy supports that allow parents to thrive. Articulating future research within a stress process model framework, the authors show vibrant theoretical pathways, including conceptualizing potential parental social supports at multiple levels, attending to the intersection of multiple social locations of parents, and renewing attention to local contextual factors and parenting life stages.     

Separating Spheres? Diverging Trends in Youth's Gender Attitudes About Work and Family

The authors investigated whether trends in attitudes about gender were consistent with the gender stall primarily occurring in the family domain and examined potential mechanisms associated with changing gender norms. Using data from Monitoring the Future surveys (1976–2015), the authors assessed three components of trends in youth's beliefs about gender: the marketplace, the family, and mothers' employment. Findings showed continued increases in egalitarianism from 1976 through the mid‐1990s across all three dimensions. Thereafter, support for egalitarianism in the public sphere plateaued at high levels, rising support for mothers' employment persisted at a slower pace, and conventional ideology about gender in families returned. The changing demographic composition of American high school students did not account for the gender attitude trends. Youth's mothers' employment and increased education were related to increased egalitarianism. Changes in population averages of mothers' employment and educational attainment were only weakly associated with increases in egalitarian attitudes.     

Whither the virtuous cycle? Past and future trends in black-white inequality in educational attainment

The inequality in the relative years of education between blacks and whites has diminished dramatically over the 20th century. One possible explanation for this convergence is a virtuous cycle of parents passing on educational advantage, from one generation to the next, leading to an overall educational upgrading. In this paper we test the virtuous cycle hypothesis by estimating the three way interaction of cohort, race, and family background. We find that the convergence in educational attainment between blacks and whites over the past century was driven by processes unrelated to family background.