We investigate in this paper the properties of multimodular functions. In doing so we give alternative proofs for properties already established by Hajek, and we extend his results. In particular, we show the relation between convexity and multimodularity, which allows us to restrict the study of multimodular functions to convex subsets of Z m. We then obtain general optimization results for av...

Determinamos tendencias poblacionales y sitios importantes de invernación para la gallareta (Fulica americana) en México, cual prácticamente no existe información el país. La distribución las poblaciones a largo plazo (1960-2000) invernando país fue: costa del Golfo México (68%), alta Pacífico (20%), altiplano central (7%), norte (3%), baja (2%). corto (1991-2000) fue 53%, 30%, 8%, 5% 3%, respe...

Abstract Due to its importance in various applications that need human-computer interaction (HCI), the field of 3D hand pose estimation (HPE) has recently got a lot attention. The use technological developments, such as deep learning networks accelerated development reliable HPE systems. Therefore, this paper, based on Enhanced Global Pyramid Network (EGPNet) is proposed. Initially, feature ext...

http://dx.doi.org/10.1016/j.anbehav.2017.08.022 0003-3472/© 2017 The Association for the Study of A Birds often need to distinguish their own eggs from those of others or from other objects that could be confused with their eggs. Egg recognition occurs in a variety of birds that retrieve eggs displaced from the nest. Egg recognition and rejection is also a particularly widespread defence agains...

The major histocompatibility complex (MHC) hosts the most polymorphic genes ever described in vertebrates. The MHC triggers the adaptive branch of the immune response, and its extraordinary variability is considered an evolutionary consequence of pathogen pressure. The last few years have witnessed the characterization of the MHC multigene family in a large diversity of bird species, unraveling...

Six muscles of the mallard duck (Anas platyrhynchos), the common coot (Fulica atra) and the yellow-legged gull (Larus cachinnans) were analysed morphometrically, with special emphasis on their functional implications and physiological needs. Oxidative fibres always had significantly smaller size than anaerobic fibres, although no differences in the number of capillaries per fibre were found. Th...