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1.
J Evol Biol ; 26(10): 2283-95, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23944658

RESUMEN

Phenotypic integration is essential to the understanding of organismal evolution as a whole. In this study, a phylogenetic framework is used to assess phenotypic integration among the floral parts of a group of Neotropical lianas. Flowers consist of plant reproductive organs (carpels and stamens), usually surrounded by attractive whorls (petals and sepals). Thus, flower parts might be involved in different functions and developmental constraints, leading to conflicting selective forces. We found that Bignonieae flowers have very similar patterns of variance/covariance among traits and that such patterns are uncorrelated with the phylogenetic relationships between species. However, in spite of pattern stasis, our results also indicate that diversification of floral morphology in this group has occurred throughout the evolution of magnitudes of correlation among traits. Thus, we suggest that stabilizing selection has played an important role in phenotypic integration, resulting in the long-term stasis of covariance patterns underlying flower diversification during the ca. 50 Myr of evolution of Bignonieae. This is the first report of long-term stasis in the phenotypic integration of angiosperms, suggesting that patterns of floral morphology can be recognizable as specific attributes of distinct botanical families.


Asunto(s)
Bignoniaceae/anatomía & histología , Filogenia , Bignoniaceae/clasificación , Flores/anatomía & histología , Flores/clasificación , Fenotipo , Selección Genética
2.
Rev Bras Enferm ; 53(4): 584-92, 2000.
Artículo en Portugués | MEDLINE | ID: mdl-12138736

RESUMEN

The objective of the present work is to reflect on concepts of psychosocial rehabilitation and interdisciplinarity in the field of mental health. This study points out the importance of those themes for the mental health and/or psychiatric nursing knowledge and practice. Based on complex thought and ethic-esthetic paradigm, criticism is made regarding the rational paradigm. It also aims at building knowledge that can stimulate reflection, investigation, curiosity, questioning of "certainty" and the acceptance of multiple competitive narratives. Psychosocial rehabilitation is understood as a conception, not as a technique. Its is a process which enables the user to establish social and affectionate relationships in different contexts: at home, at work and society. Interdisciplinarity is the capacity of converging different specialized knowledge on the construction of one text. It was observed that the discussion of these themes allows the nursing professionals to understand their practices and knowledge on a utopian, ethical and esthetic dimension.


Asunto(s)
Trastornos Mentales/enfermería , Trastornos Mentales/rehabilitación , Grupo de Atención al Paciente , Enfermería Psiquiátrica , Humanos , Apoyo Social
3.
Rev Esc Enferm USP ; 31(3): 486-97, 1997 Dec.
Artículo en Portugués | MEDLINE | ID: mdl-9582840

RESUMEN

The starting point of this work consists on a revision of thesis and dissertations developed by nurses aiming to check how the social representation was used as a theoretical referential on these researches. Through a systematic reading of these works some points were dettached, as thematic, main result as and reflections proposed in order to atain professional practice nursing. It was ascertained from the analysed work that this theoretical referential is used by nurses, and that some studies developed introduce significative results from these professionals.


Asunto(s)
Tesis Académicas como Asunto , Teoría de Enfermería , Identificación Social , Humanos
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