We introduce a simple generalization of rational bubble models which removes the fundamental problem discovered by [20] that the distribution of returns is a power law with exponent less than 1, in contradiction with empirical data. The idea is that the price fluctuations associated with bubbles must on average grow with the mean market return r. When r is larger than the discount rate rδ , the...

In layer-based additive manufacturing (AM), supporting structures need to be inserted to support the overhanging regions. The adding of supporting structures slows down the speed of fabrication and introduces artifacts onto the finished surface. We present an orientation-driven shape optimizer to slim down the supporting structures used in single material-based AM. The optimizer can be employed...

Cooking on television after WWII mainly addressed ‘the housewife’ audience, while women themselves were presenting cooking programmes. History has largely forgotten the presenter Joan Robins, who appeared alongside Philip Harben and Marguerite Patten BBC broadcasts of late 1940s 1950s. Robins specialised in ‘common-sense’ cookery, nutrition, health, including a controversial slimming programme ...

BACKGROUND Adolescence is a vital part of child development, where acquired eating/dietary behaviour is often associated with ones' perception of body shape. OBJECTIVES To assess eating habits in relation to body shape perception and esteem in middle-school (junior-high) pupils. MATERIALS AND METHODS Surveyed subjects were 170 middle-school pupils from Warsaw; 101 girls and 69 boys aged 15 ...

In this paper, we propose a new bricked cache system suitable for a particular surface propagation algorithm : seismic horizon reconstruction. The application domain of this algorithm is the interpretation of seismic volumes used, for instance, by petroleum companies for oil prospecting. To ensure the optimality of such surface extraction, the algorithm must access randomly into the data volume...

BACKGROUND Youth nutrition and their nutritional status are conditioned by many factors, some of the main ones being: economic, social, climatic, cultural, and psychological factors as well as nutritional knowledge. With the growing problem of overweight and obesity among children and young people, the incidence of the metabolic syndrome is also increasing. OBJECTIVES The aim of the study was...