Although contributing greatly to current criminological theory and research on crime and desistance, Sampson and Laub's theory of age-graded informal social control is limited in explaining gender differences in desistance. The authors addressed this limitation by comparing how adult institutions such as marriage, family, and employment affect illicit drug use for women compared with men. The authors analyzed logistic panel models with fixed effects using National Youth Survey data and found gender differences in the predictors of changes in illicit substance use. Although marriage reduced the odds of drug use for men, it was the importance or strength of a relationship that altered illicit drug use for women. The authors also found other gender differences regarding children and the emphasis placed on employment and family by respondents. This research adds to the existing literature on desistance and furthers knowledge about the gendered nature of Sampson and Laub's theory.

Helander and deLooze have proposed a model of seated comfort in which comfort and discomfort are conceptually separate. They argue that ergonomic chairs tend to be overdesigned with insufficient attention paid to aesthetics. This argument is critiqued on both methodological and conceptual grounds. The methodological critique is based on psychometric criteria. The conceptual critique is based on the need for an integrated (ecological) approach in which work context and user characteristics are explicitly considered. An alternative model for an ecological ergonomics is presented.

A successful ergonomic intervention involves creating affordances that support safe, effective, productive and comfortable working conditions. Guerilla ergonomics entails creating the requisite affordances using objects that are readily available in the workplace. This often means using objects in ways not intended in their original design. As such this has the advantage of creating viable working conditions quickly and cheaply. Workers learn how to adapt quickly to new problems or changes in the work environment. Our research has shown that the perception of the affordance for an object's intended use can interfere with a person's ability to see other uses for the object. Practice in perceiving new uses for objects as well as compiling a directory of possible solutions may help overcome these limitations.

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From the ancient mythology till the modern times, people were trying to build an artificial mechanical replica of themselves. Inspired by this long tradition of various engineering projects, we will hereby describe a partly humanoid robotic structure. Our robotic configuration is composed out of an anthropomimetic upper body, but instead of legs it uses a wheeled cart for the motion. In our research, this so-called semi-anthropomimetic structure has a four-wheeled cart. This work is aiming to analyze the behaviour of the robot that is exposed to different kind of external disturbances. Disturbances coming from the outside in the form of external forces (impulse and long term) simulate the interactions of the robot and its ambience. Necessary simulations were thoroughly executed (in that way analyzing robotic balance) and proper size of the cart is evaluated following the ZMP theoretical background. [Projekat Ministarstva nauke Republike Srbije, br. TR-35003 i br. III-44008]