María-José Martínez

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UNLABELLED One of the main degrading factors in the quality of oncologic PET images of the thorax and upper abdomen is respiratory motion of tumors. One method to reduce this effect is the acquisition of PET data in gated mode. A second method is the correction of studies for motion. Motion registration is essential in both cases. We report a method using(More)
The chromosomal arrangement frequencies of 27 populations of Drosophila subobscura from the western Mediterranean region have been compared. To evaluate the relationships between these populations, factorial analysis of correspondences (B ENZECRI , 1973) and a distance proposed by P REVOSTI (1974 a) have been used. The general clines present throughout the(More)
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