This paper simulates a 'service-neutral' digital dividend auction, considering three different amounts of spectrum (48 MHz, 80 MHz and 120 MHz). For this, an efficient simulator for combinatorial first-price sealed bid auctions has been implemented. The results show rather coherently that the price per lot is higher the smaller the amount of spectrum auctioned and that companies from the mobile...

This prospective study investigated how pain catastrophizing was related to labor pain intensity and physical recovery after childbirth. Eighty-eight women giving birth for the first time completed the first questionnaire before delivery. Eighty-two of those returned the second questionnaire after delivery. Participants were classified as catastrophizers (n=38) or non-catastrophizers (n=44) bas...

Etude bibliographique sur les systèmes de partage de données sur réseaux mobile ad hoc

A three-step optimization strategy which includes one-factor-at-a-time classical method and different statistical approaches (Plackett-Burman design and response surface methodology) that were applied to optimize the antioxidant potential of Penicillium granulatum. Antioxidant activity was assayed by different procedures and compared with total phenolic content. Primarily, different carbon and ...

After dark, road lighting should enhance the visual component of pedestrians’ interpersonal judgements such as evaluating the intent of others. Investigation of lighting effects requires better understanding of the nature of this task as expressed by the typical distance at which the judgement is made (and hence visual size) and the duration of observation, which in past studies have been arbit...

The technique of fluorescence recovery after photobleaching is used to perform an extensive study of the lateral diffusion of a phospholipid probe in the binary mixture dimyristoylphosphatidylcholine/cholesterol, above the melting temperature of the phospholipid. In the regions of the phase diagram where a single liquid phase exists, diffusion can be quantitatively described by free volume theo...

Biological cells are complex and highly dynamic: many macromolecules are organized in loose assemblies, clusters or highly structured complexes, others exist most of the time as freely diffusing monomers. They move between regions and compartments through diffusion and enzyme-mediated transport, within a heavily crowded cytoplasm. To make sense of this complexity, computational models, and, in ...

Fluorescence recovery after photobleaching (FRAP) is used to obtain quantitative information about molecular diffusion and binding kinetics at both cell and tissue levels of organization. FRAP models have been proposed to estimate the diffusion coefficients and binding kinetic parameters of species for a variety of biological systems and experimental settings. However, it is not clear what the ...

Since the mid-1980s, cesarean section rates in Canada have declined. By 1993, 18 of every 100 deliveries were by cesarean section, compared with close to 20 per 100 in 1987. As well, in 1993, 9 of every 100 deliveries were primary cesareans, down from a high of almost 11 per 100 in the mid-1980s. And the repeat cesarean section rate fell from 39 per 100 cesareans in the mid-1980s to 34 in 1993....

Despite cesarean being a major abdominal surgery, the number of cesarean deliveries has been increasing in recent decades in the United States [1-3]. The World Health Organization has stated that national cesarean rates greater than 10-15% indicate unnecessary maternal risk. Nevertheless the current cesarean rate in the US is 32.2% (CDC). With this high rate of cesarean delivery the question of...