Family Experiences of Competition and Adolescent Performance

The authors examined how mothers' and fathers' feelings of competition at home and work affect their relationships with their daughters and sons using time‐diary data from a national sample of 220 families. Multivariate analyses revealed 3 relationships between parents' feelings of competitiveness at work and home and feelings of competition experienced by their children at school and home: (a) parents' and adolescents' competitiveness varied across home, work, and school—with mothers and fathers reporting similar levels of competition at work but daughters feeling more competitive at school than sons; (b) parents' competition at work was associated with similar activities; however, daughters' and sons' competition at school varied by activities; and (c) mothers' competition was associated with strategies for college enrollment and varied by gender, most notably with respect to daughters' academic progress. The results suggest how parents' competitive disposition may motivate their children's academic performance, especially between working mothers and their daughters.     

The effects of teenage fatherhood on young adult outcomes

This paper uses national longitudinal data and several new empirical strategies to examine the consequences of teenage fatherhood. The key contribution is to compare economic outcomes of young fathers to young men whose partners experienced a miscarriage rather than a live birth. The results suggest that teenage fatherhood decreases years of schooling and the likelihood of receiving a high school diploma and increases general educational development receipt. Teenage fatherhood also appears to increase early marriage and cohabitation, and has mixed short-term effects on several labor market outcomes.     

Mobility of students and attractiveness of universities. The case of Sapienza University of Rome

Human mobility is a complex and multifaceted phenomenon. While labour migration has been widely and deeply investigated – through theoretical and empirical analysis – other forms of mobility have received much less attention. Students' mobility is a peculiar form of temporary movement that can be considered as neither migration nor tourism. It is rapidly growing: in the period 1975–2005 the number of tertiary education students abroad increased fourfold, from 0.61 million to 2.73 million, following the trend of the internationalization of economy and globalization of culture. In 2009 almost 3.7 million tertiary students were enrolled outside their country of origin, an increase of more than 6% from the previous year.

In this paper we analyse the international mobility of university students, using a unique data set built through surveys conducted at the Sapienza University of Rome. The data collected cover a rich array of information on students' characteristics and backgrounds, provenance places, family conditions, individual aspirations, and job preferences. The empirical analysis of those data offers an opportunity for understanding a relevant part of mobility decisions of (prospective) highly qualified workers. The Sapienza University, moreover, is at present the largest university in Europe for number of students and a pole of attraction for both European and non-European students. This allows us to enlarge our analysis at a global level.     

Manipulating motivating operations to facilitate the emergence of mands for a child with autism

Research on the functional independence of verbal operants (Skinner, 1957) has demonstrated inconsistent findings. One explanation may be that these studies have not manipulated the motivating operation (MO) to facilitate the emergence of mands (Hall & Sundberg, 1987; Lamarre & Holland, 1985). In the current study, 1 participant, diagnosed with autism, was taught to tact high-preference and low-preference leisure items, and emergence of mands was tested under varying MO conditions. Results showed the emergence of mands following periods of arranged deprivation, and greater maintenance for a highly preferred relative to a less preferred stimulus. However, mands only emerged when presession tact trials were conducted. These results suggest that in a state of deprivation, transfer of stimulus control from discriminative to motivational conditions may occur without direct training.     

Promoting work ability and well-being in hospital nursing: the interplay of age, job control, and successful ageing strategies

Previous research shows that work ability of nurses decreases with age. In our study we therefore addressed the following questions: Do successful ageing strategies at work in terms of selection, optimization, and compensation (SOC) support the work ability of nurses? Does SOC mediate the relationship between job control (i.e., decision opportunities at work) and work ability? Does the mediation differ between age-groups? 438 nurses (Age Range 21-63 years) completed a questionnaire in the course of an employee survey. Results show that SOC is positively related with work ability. The positive effect of job control on work ability is significantly mediated by SOC. There are stronger mediating effects for elder nurses than for younger nurses. Results indicate that the interplay of job control and SOC at work helps to maintain the work ability of nurses in nursing care.     

Cognitively automated assembly processes: a simulation based evaluation of performance

The numerical control of an experimental assembly cell with two robots--termed a cognitive control unit (CCU)--is able to simulate human information processing at a rule-based level of cognitive control. To enable the CCU to work on a large range of assembly tasks expected of a human operator, the cognitive architecture SOAR is used. The CCU can plan assembly processes autonomously and react to ad-hoc changes in assembly sequences effectively. Extensive simulation studies have shown that cognitive automation based on SOAR is especially suitable for random parts supply, which reduces planning effort in logistics. Conversely, a disproportional increase in processing time was observed for deterministic parts supply, especially for assemblies containing large numbers of identical parts. In this contribution, the effect of phase-shifts in deterministic part supply is investigated for assemblies containing maximal different parts. It can be shown that the concept of cognitive automation is as well suitable for these planning problems.     

Evaluation of objectivity, reliability and criterion validity of the key indicator method for manual handling operations (KIM-MHO), draft 2007

Upper extremity musculoskeletal symptoms and disorders are common in the working population. The economic and social impact of such disorders is considerable. Long-time, dynamic repetitive exposure of the hand-arm system during manual handling operations (MHO) alone or in combination with static and postural effort are recognised as causes of musculoskeletal symptoms and disorders. The assessment of these manual work tasks is crucial to estimate health risks of exposed employees. For these work tasks, a new method for the assessment of the working conditions was developed and a validation study was performed. The results suggest satisfying criterion validity and moderate objectivity of the KIM-MHO draft 2007. The method was modified and evaluated again. It is planned to release a new version of KIM-MHO in spring 2012.