The problem of reconstructing signed permutations on n elements from their erroneous patterns distorted by reversal errors is considered in this paper.A reversal is the operation of taking a segment of the signed permutation, reversing it, and flipping the signs of its elements. The reversal metric is defined as the least number of reversals transforming one signed permutation into another. It ...

The scope of the study was to identify the structure of social representations regarding health and illness as expressed by representatives of social movements. The study included 66 members of social movements in the Federal District of Brazil. A questionnaire was applied to obtain the socio-economic profile of the participants and the free association technique was used in order to identify t...

We complete the Wilf classification of signed patterns of length 5 for both signed permutations and signed involutions. New general equivalences of patterns are given which prove Jaggard’s conjectures concerning involutions in the symmetric group avoiding certain patterns of length 5 and 6. In this way, we also complete the Wilf classification of S5, S6, and S7 for involutions.

In their critical paper on images in the health sciences, Roger Cooter and Claudia Stein pointed out the limits of visualisation and representation in the existing literature in the public representation of health and illness. They focus on the complex and multilayered field of medical representations as the site where levels of epistemic, philosophical and political presuppositions provide ins...

OBJECTIVE To examine the relationships among cognitive representations of diabetes, diabetes-specific health behaviors, and quality of life using Leventhal and Diefenbach's self-regulation model of illness (Leventhal H, Diefenbach M: The active side of illness cognition. In Mental Representation in Health and Illness. SkeltonJA, Croyle RT, Eds. New York, Springer-Verlag, 1991, p. 247-272). RE...

Shephard groups are unitary reflection groups arising as the symmetries of regular complex polytopes. For a Shephard group, we identify the representation carried by the principal ideal in the coinvariant algebra generated by the image of the product of all linear forms defining reflecting hyperplanes. This representation turns out to have many equivalent guises making it analogous to the sign ...