Genetic and environmental contributions to stability and change in levels of self-control

Purpose

There has been an emerging body of research estimating the stability in levels of self-control across different sections of the life course. At the same time, some of this research has attempted to examine the factors that account for both stability and change in levels of self-control. Missing from much of this research is a concerted focus on the genetic and environmental architecture of stability and change in self-control.

Methods

The current study was designed to address this issue by analyzing a sample of kinship pairs drawn from the Child and Young Adult Supplement of the National Longitudinal Survey of Youth 1979 (CNLSY).

Results

Analyses of these data revealed that genetic factors accounted for between 74 and 92 percent of the stability in self-control and between 78 and 89 percent of the change in self-control. Shared and nonshared environmental factors explained the rest of the stability and change in levels of self-control.

Conclusions

A combination of genetic and environmental influences is responsible for the stability and change in levels of self-control over time.     

Medieval modernity: On citizenship and urbanism in a global era

This paper examines forms of citizenship associated with contemporary urbanism. Focusing on three paradigmatic spaces: the gated enclave, the regulated squatter settlement and the camp, the authors argue that the landscape of urban citizenship is increasingly fragmented and divided. These geographies are constituted through multiple and competing sovereignties which, when territorially exercised, produce fiefdoms of regulation or zones of ‘no-law’. In order to understand these practices, the authors employ the conceptual framework of the ‘medieval city’. This use of history as theory sheds light on particular types of urban citizenship, such as the ‘free town’ or the ‘ethnic quarter’, that were present at different moments of medievalism and that are congruent with current processes. The ‘medieval’ is invoked not as an historical period, but rather as a transhistorical analytical category that interrogates the modern at this moment of liberal empire.     

The Fundamentalist City,Medieval Modernity,and the Arab Spring

Abstract

The Arab World has witnessed massive popular uprisings that seek to overturn years of authoritarianism and supposedly bring about democratic change and social justice. These uprisings evoke both optimism and pessimism about religion, violence, and their connection to cities. As people in various parts of the Arab world embark on their quest for self-government, there is no telling where this great experiment will lead. Based on current indications, religion will play a decisive role in shaping the futures of these nations, and particularly their cities. These directions seem to be charted by the religious parties that have come to power, and through a series of subtle and gradual policies that are setting the foundations for future theocratic states. The aim of this article is to explore the urban processes by which religious ideologies transform into fundamentalist urban movements, and how their actions are starting to reshape the cities of the Arab World.