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This article addresses the concept of disability by covering the multiple dimensions and coordinates that intersect the phenomenon from a perspective that makes it possible to describe, analyse and understand the complexity of what is entwined in the term disability. It aims to present a theoretical-conceptual distinction with heuristic, analytical and explanatory capacity based on the triad of condition, situation and position of disability. To this end, a study was carried out in order to deploy relevant conceptual mediations that provide solidity and density to each notion and its articulations. From the results, the condition of disability is related to the material and symbolic state of the very personal and non-transferable experience in the biographical trajectories and the imprints of subjectivation. The situation of disability refers to the processes of disablement that emerge from face-to-face interactions in everyday life, from intersubjective experiences, from co-presence and co-inhabiting. Finally, the position of disability refers to the aspects and structural dynamics of long time that demarcate this position in the social field, in relation to the other historically constituted positions. The final reflections help to appreciate a reality in which the coordinates of the triad —like light, which is sometimes a wave and sometimes a particle— sometimes function as dimensions, sometimes as levels and sometimes as communicating vessels. [ABSTRACT FROM AUTHOR]

Parachondria neglectus is a terrestrial mollusk endemic of Cuba. This species constitutes the only report of the Annulariidae family in the municipality of Manzanillo, Granma province. In the present study, the temporal dynamics of the structural subniche of a population of P. neglectus was characterized. Thirty expeditions were carried out between December 2013 and February 2015. 83.9 % of the mollusks were found on the ground (around the base of trees and shrubs) and 16.1 % used the trunk of eight plant species as diurnal resting substrate. The test of independence performed using a 2×2 contingency table with Yates correction showed that in the population the frequency of using one substrate or another depends on the occurrence or not of rainfall (X2 = 214.88; P = 0.0001). This species was found at an average trunk distance of 13 ± 6.42 cm. The C-index values indicated marked preference of this mollusk for Swietenia mahagoni during all climatic periods sampled. During the rainy season this species also showed statistically significant preferences for Cordia gerascanthus, Ehretia tinifolia and Bursera simaruba. For the population, the height above the ground presented a mean value of 153.5 ± 71.3 cm. The heights above the ground reached by this species on rainy and non-rainy days showed statistically significant differences (U = 21519.5; P < 0.001). [ABSTRACT FROM AUTHOR]