root asymmetry in marfan patients; evaluation by magnetic resonance imaging and comparison with standard echocardiography. Smooth muscle lineage diversity in the chick embryo. Two types of aortic smooth muscle cell differ in growth and receptor-mediated transcriptional responses to transforming growth factor-beta. Comparison of aortic elasticity in patients with the Marfan syndrome with and wit...

The paper seeks to develop our understanding of the somewhat diffuse nature of technological externalities in technological space by associating a geographical dimension with the sectoral dimension. Using panel data this paper estimates a knowledge production function that allows for spillovers inside the same industry and outside, and for local as well as global geographical spillovers. This a...

The paper examines whether a worker’s sick absence behaviour influences the risk of becoming unemployed. Swedish panel data are used to estimate the relationship between the incidence and duration of sick leave and subsequent unemployment. The results indicate that an increase in the number of sick leaves as well as an increase in the duration of sick spells is associated with higher risk of un...

The paper presents panel data evidence for 13 transition countries on inflation, financial development and growth. It contributes to the growth literature by showing that the transition countries conform to developed country evidence in particular with the strong negative effect of inflation on growth. It also contributes more evidence to the debate on the role of financial development. Once in...

This paper reports on an experiment designed to analyze information revelation in sequential guessing games. We observe a remarkable frequency of equilibrium outcomes. Deviations from the equilibrium are explained by learning considerations. By means of applying panel data econometric techniques, we find the presence of error cascades, which represent the situation where the deviation from lear...

Heterogeneity in Real Wage Cyclicality This paper presents evidence that real wage cyclicality can be a particularly heterogeneous parameter, depending on different worker characteristics and also on the specific stage of the business cycle. Using matched employer-employee panel data for Portugal covering the period 1986-2004, real wages are shown to be considerably more procyclical during rece...

OBJECTIVE With survival following paediatric cardiac surgery improving, the attention of quality assurance and improvement initiatives is shifting to long-term outcomes and early surgical morbidities. We wanted to involve family representatives and a range of clinicians in selecting the morbidities to be measured in a major UK study. SETTING Paediatric cardiac surgery services in the UK. PA...

Abstract We estimate the effect of 1999 education reform in Poland on employment and earnings. The replaced previous 8 years general 3/4/5 tracked secondary with 9 3/3/4 upper-secondary education. also introduced new curricula, national examinations, teacher standards, a transparent financing scheme. Our identification strategy relies difference-in-differences approach using quasi-panel pooled ...

Marine sponges produce a diversity of unusual chemical compounds, but the ecological functions of these metabolites remain largely unknown. To determine if sponge secondary metabolites have ecologically significant antimicrobial effects, organic extracts from 33 species of Caribbean sponges were assayed for antibiotic activity against a test panel of marine bacteria. The test panel consisted of...