布哈林世界经济思想的当代意义

布哈林世界经济思想以世界经济的整体性视角,通过对世界经济和帝国主义形成过程中资本“国际化”和“民族化”两种趋势进行分析,从整体上概括出帝国主义的全球特征和发展趋势,其中蕴含着丰富的全球化及其应对的思想。布哈林世界经济理论对认识全球化条件下的时代特征、资本主义发展趋势、社会主义发展模式和中国特色社会主义建设等问题,具有重要的理论意义和方法论价值。     

Statistics and the Bayesian mind

Did German flying bombs really target the poorer areas of London—or did the poor people underneath them just think that they did? How many millions of dollars will the current re-make of King Kong really gross? Oh, and how many taxis are there in London? The human mind can make very good guesses, it seems—and it uses Bayesian analysis to do so. Tom Griffiths and Joshua Tenenbaum explain.     

The nation's drug problem is commercial recreational pharmacology

Overdose deaths, overprescribing of opioids, illicit production of fentanyl, a resurgence of methamphetamine and cocaine, and an epidemic of vaping‐related illnesses and substance use disorders cover the nation's headlines today, as they have for years. These problems are manifestations of commercial recreational pharmacology, the personally controlled use of psychoactive drugs that super‐stimulate brain reward for pleasure. While substance use and addiction have been known throughout history, the recent increasingly greater acceptance of commercial recreational pharmacology in the United States is exacting a toll on the public health of the nation. The most dramatic example is a decline in U.S. life expectancy, which fell three years in a row from 2016–2018 as a result of overdose deaths.     

Association of sexual abstinence in adolescence with mental health in adulthood

We examined whether adolescent sexual abstinence predicts better adult mental health. 1,917 adolescents, recruited from middle schools at age 13, were surveyed at ages 13, 18, 23, and 29. In bivariate analyses, adolescent sexual abstinence was associated with better mental health at age 29 for females, but not males; three adolescent factors, educational prospects, family bonding, and unconventionality were investigated as explanatory variables of this relationship. The abstinence-mental health relationship was nonsignificant when educational prospects was included in multivariate models, and marginally significant when family bonding and unconventionality were included; all three explanatory factors accounted for significant proportions of the variance in adult mental health. Girls who are uninvolved in school, have weak family backgrounds, and exhibit unconventionality may have poor adult mental health, whether or not they abstain from sex in adolescence. Interventions that strengthen adolescents' connections to families and schools may reduce risk for long-term mental health problems.     

Child Mortality and Socioeconomic Status: An Examination of Differentials by Migration Status in South Africa1

This study examines child mortality and socioeconomic status among migrants and nonmigrants. It also examines child mortality by migration status in all quintiles of socioeconomic status, comparing immigrants to the native‐born and internal migrants to nonmigrants. The results show that among migrants, child mortality decreased faster as socioeconomic status increased than among nonmigrants. The results also show a cross‐over in the likelihood of child mortality by immigration status as socioeconomic status increased. In the poorest socioeconomic quintiles immigrants had a greater likelihood of child mortality than the native‐born while in the wealthiest quintiles child mortality was greater among the native‐born.     

Small populations of the north: their problems and how to solve them

The authors examine the present conditions of 26 small, isolated populations living in the north of Russia. The total size of the population under consideration is 181,600, according to the 1989 Soviet census. The conclusion is that these populations are under severe threat of extinction and that there is no consensus about how to resolve their present predicament.