Interacting or functionally related protein families tend to have similar phylogenetic trees. Based on this observation, techniques have been developed to predict interaction partners. The observed degree of similarity between the phylogenetic trees of two proteins is the result of many different factors besides the actual interaction or functional relationship between them. Such factors influe...

P eople over 65 make up an ever-growing section of the community. It is estimated that these individuals account for 20% of the population in Europe and 14% in the United States of America. It has been predicted that by 2050 those aged over 80 years will represent about 25% of the elderly and 5% of the total population of the USA. In Greece, 11.5% of the general population is aged over 70 years...

tected, as it were, from another crossing over. This relation is illustrated in the diagram (fig. 7). If crossing over occurs at some point between two pairs of factors a and b indicated on the diagram, the next crossing over point of the chromosome would, if it occurred at all, lie at some distance away, rather than near by. This possibility can be tested in a case where several known points a...

This study explores the role of issuance expenses in explaining the fall in stock value for OTC stock offerings that raise cash for debt reduction purposes. It estimates that over half of the sample's −2.79% two-day fall in stock value can be accounted for by issuance expenses when using a lower bound measure of issuance expenses. This estimate contrasts with the one-fifth estimate suggested by...

The nature of the relationship between crossing over and failed segregation in human oocytes is of obvious interest. A recent paper by Cheng and colleagues provides important insights into the distribution of crossover events (as marked by MLH1 foci) in human oocytes and raises complex questions regarding discrepancies between direct cytological assessment of exchange and measurement of crossin...

Selection was practiced for reducing crossing over between the third chromosome genes Sb and H(2) of Drosophila melanogaster; the method employed was to select the repulsion double heterozygotes Sb+/+H(2) every generation. Two replicate selection lines were maintained. After 24 generations of selection, Line 1 showed no significant difference from the control, although the regression of recombi...

Previous research has demonstrated that the generally positive relationship between age and the presence of charitable giving becomes negative at the oldest ages. We investigate potential causes of this drop in charitable giving among the oldest old including changes in health, cognition, egocentric networks, religious attendance, and substitution of charitable bequest planning. A longitudinal ...

L EPORE HEMOGLOBINS are the result of unequal crossing over between structural genes coding for #{244} and f3 polypeptide chains of human hemoglobin during melosis. The abnormal polypeptide chain #{244} 3 produced after this crossing over has part of the 5 chain at its N terminus, and the remaining part is similar to the i chain.’ The point of fusion of the two polypeptide chains and the propor...

Solids of revolution (vases, bottles, bells, . . .), shortly SORs, are very common objects in man-made environments. We present a complete framework for 3D database population from a single image of a scene including a SOR. The system supports human intervention with automated procedures to obtain good estimates of the interest entities needed for 3D reconstruction. The system exploits the spec...