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1.
Sci Rep ; 9(1): 2067, 2019 02 14.
Artigo em Inglês | MEDLINE | ID: mdl-30765851

RESUMO

The order Macrodasyida (Gastrotricha) includes over 350 marine species, and only 3 freshwater species (Marinellina flagellata, Redudasys fornerise, R. neotemperatus). Herein we describe a new freshwater species of Macrodasyida, Redudasys brasiliensis sp. nov., from Brazil through an integrative taxonomic approach. The external morphology and internal anatomy were investigated using differential interference contrast microscopy, confocal microscopy, scanning and transmission electron microscopy. The systematization of the new taxon was inferred by nuclear (18S and 28S) and mitochondrial (COI) genes, and its intra-order relationships were assessed using data from most of available macrodasyids. Phylogenetic analyses yielded congruent trees, in which the new taxon is nested within the family Redudasyidae, but it was genetically distinct from the other species of the genus Redudasys. The new species shares the gross morphology and reproductive traits with other Redudasyidae and the presence of only 1 anterior adhesive tube per side with Redudasys neotemperatus, but it has a specific pattern of ventral ciliation and muscle organization. Results support the hypothesis that dispersion into fresh water habitats by Macrodasyida and Chaetonotida taxa occurred independently and that within Macrodasyida a single lineage invaded the freshwater environment only once. Furthermore, the Neotropical region seems to be peculiar for the evolution of the freshwater macrodasyid clade.


Assuntos
Helmintos/classificação , Helmintos/genética , Animais , Brasil , Ecossistema , Evolução Molecular , Água Doce , Microscopia Eletrônica de Transmissão/métodos , Microscopia de Interferência/métodos , Mitocôndrias/genética , Filogenia , RNA Ribossômico 18S/genética
2.
Subj. procesos cogn ; 21(1): 219-239, 2017.
Artigo em Espanhol | LILACS | ID: biblio-875358

RESUMO

El presente trabajo se propone realizar un estudio preliminar sobre el Test de los Cuentos de Hadas (Fairy Tale Test) de Carina Coulacoglou, dar a conocer las primeras experiencias de la investigación transcultural iniciada en Argentina con el objetivo de evaluar su aplicabilidad en nuestra población, y comparar su status clínico y científico con otras técnicas temáticas incorporadas al psicodiagnóstico infantil. El principal aporte del TCH se centra en enriquecer y profundizar la comprensión de la personalidad infantil, en niños y niñas de 6 a 12 años de edad, utilizando láminas que presentan personajes y escenas de cuentos tradicionales como los de Caperucita Roja y Blancanieves. La cuidadosa operacionalización de las variables y los aspectos psicométricos del instrumento lo diferencian de otras técnicas proyectivas de uso común en el psicodiagnóstico infantil. Su encuadre lúdico y el atractivo de las láminas promueven una interacción continua entre el niño y el psicólogo sosteniendo el interés y la motivación del niño. El TCH ha demostrado eficacia en estudios transculturales, en investigaciones clínicas y del área educacional.(AU)


The present work intends to carry out a preliminary study on Carina Coulacoglou's Fairy Tale Test, to expose the first experiences of the cross­cultural investigation initiated in Argentina in order to assess its applicability in our population and compare their clinical and scientific status with other theme techniques incorporated to children's psychodiagnosis. The main contribution of the FTT is the enhancement and elaboration of the understanding of children personality, in boys and girls 6 to 12 years old, using pictures featuring characters and scenes of traditional tale, such as little Red Riding Hood and Snow White. The careful operationalization of variables as well as the psychometric aspects of the instrument differ from other projective techniques commonly used in children psychodiagnosis. Its ludic frame and the appealing pictures promote interaction on a continuous basis between the child and the psychologist, maintaining the interest and motivation of the child throughout. The FTT has shown efficacy in transcultural studies, both in clinical and educational research. (AU)


Assuntos
Humanos , Criança , Técnicas Projetivas , Psicologia
3.
Zookeys ; (60): 1-12, 2010 Oct 07.
Artigo em Inglês | MEDLINE | ID: mdl-21594197

RESUMO

Current knowledge of freshwater gastrotrich fauna from Brazil is underestimated as only two studies are available. The present communication is a taxonomic account of the first-ever survey of freshwater Gastrotricha in Minas Gerais State. Samplings were carried out yielding six species of three Chaetonotidae genera: Aspidiophorus cf. pleustonicus, Ichthydium cf. chaetiferum, Chaetonotus acanthocephalus, Chaetonotus heideri, Chaetonotus cf. succinctus, Chaetonotus sp., and also an undescribed species belonging to the genus Redudasys (incertae sedis): this is the first finding of specimens of Redudasys outside of original type locality. These preliminary observations suggest that the knowledge of the biodiversity of Gastrotricha in the Minas Gerais State, as well as in the whole Brazil, will certainly increase as further investigations are undertaken, and that freshwater Macrodasyida may be more common than previously thought.

4.
Rev. Fac. Odontol. (B.Aires) ; 24(56/57): 40-42, 2009. ilus
Artigo em Espanhol | LILACS | ID: lil-585577

RESUMO

La disostosis cleidocraneal (DCC) es una alteración general infrecuente. Afecta huesos largos, especialmente clavícula y en el área maxilofacial observamos anomalías de número, de erupción, prognatismo y ensanchamiento del arco cigomático. Surge de la mutación del gen CBFA 1/Run X2 ubicado en el cromosoma 6p21 considerado el gen maestro en la formación de huesos y dientes. El propósito de este trabajo fue presentar un caso clínico estudiado radiográficamente y apoyado en la revisión bibliográfica de dicha patología. Esta revisión es coincidente en sus aspectos tanto dentarios como esqueletales de nuestro caso.


Assuntos
Humanos , Feminino , Idoso de 80 Anos ou mais , Anormalidades Maxilomandibulares/etiologia , Displasia Cleidocraniana/diagnóstico , Displasia Cleidocraniana/patologia , Displasia Cleidocraniana , Diagnóstico Diferencial , Prognatismo/etiologia , Radiografia Panorâmica/métodos
5.
Rev. Fac. Odontol. (B.Aires) ; 24(56/57): 40-42, 2009. ilus
Artigo em Espanhol | BINACIS | ID: bin-124102

RESUMO

La disostosis cleidocraneal (DCC) es una alteración general infrecuente. Afecta huesos largos, especialmente clavícula y en el área maxilofacial observamos anomalías de número, de erupción, prognatismo y ensanchamiento del arco cigomático. Surge de la mutación del gen CBFA 1/Run X2 ubicado en el cromosoma 6p21 considerado el gen maestro en la formación de huesos y dientes. El propósito de este trabajo fue presentar un caso clínico estudiado radiográficamente y apoyado en la revisión bibliográfica de dicha patología. Esta revisión es coincidente en sus aspectos tanto dentarios como esqueletales de nuestro caso.(AU)


Assuntos
Humanos , Feminino , Idoso de 80 Anos ou mais , Displasia Cleidocraniana/diagnóstico , Displasia Cleidocraniana/patologia , Displasia Cleidocraniana/diagnóstico por imagem , Anormalidades Maxilomandibulares/etiologia , Radiografia Panorâmica/métodos , Prognatismo/etiologia , Diagnóstico Diferencial
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