Developmental Biology
Mostrando 1-12 de 201 artigos, teses e dissertações.
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1. Development of the urinary system in guinea pig females (Cavia porcellus)
RESUMO: Os porquinhos-da-índia são modelos animais amplamente utilizados em pesquisas relacionadas a biologia do desenvolvimento. O objetivo deste trabalho foi demonstrar o processo de formação e diferenciação dos órgãos urinários em fêmeas da espécie no período pré-natal. Foram utilizadas quatro fêmeas aos 25, 30, 45 e >65 DG (dias de gestaç�
Pesq. Vet. Bras.. Publicado em: 30/09/2019
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2. Ovarian development and spawning of Macrobrachium amazonicum (Crustacea, Decapoda)
RESUMO Das espécies nativas de camarões da América do Sul, Macrobrachium amazonicum (Heller, 1862) é a mais importante para fins de aquicultura, possuindo elevado valor comercial. Devido à sua importância, este estudo objetivou avaliar a plasticidade fenotípica de fêmeas da espécie em relação ao desenvolvimento gonadal, e determinar o tipo de deso
Iheringia, Sér. Zool.. Publicado em: 15/07/2019
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3. Infants’ Characteristics and Skills: Dissolving the Nature/Nurture Dichotomy
Resumo Uma corrente emergente de pesquisadores vem defendendo que a compreensão sobre o desenvolvimento das características e competências dos organismos passa pela adoção de um pensamento sistêmico, relacional e também evolucionista. Com o objetivo de apresentar este pensamento, inicialmente discutimos a visão prevalente sobre as bases biológicas d
Trends Psychol.. Publicado em: 2019-01
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4. The multitemporality of life: an analysis from Philosophy of Biology
ABSTRACT Although the issue of temporality has mainly been studied from Physics, this topic also exhibits diverse interesting aspects that could be addressed from a biological perspective. One possible way of approaching this subject is to examine the kinds of temporalities involved in biological processes. In that vein, the aim of this article is to analyze
Manuscrito. Publicado em: 10/11/2016
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5. Efectos del disturbio antrópico sobre las poblaciones de Leprolochus birabeni (Araneae, Zodariidae) en el Chaco Seco del noroeste de Argentina
Abstract Little is known about the biology and ecology of the myrmecophagic species Leprolochus birabeni Mello-Leitão, 1942 (Zodariidae), the only representative of this genus in Argentina. This species is typical of arid environments of the north of Argentina, and their study in the Chaco Seco is relevant, because is a highly disturbed ecoregion and one of
Iheringia, Sér. Zool.. Publicado em: 07/07/2016
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6. Constant fluctuating asymmetry but not directional asymmetry along the geographic distribution of Drosophila antonietae (Diptera, Drosophilidae)
ABSTRACT The population dynamics of a species tends to change from the core to the periphery of its distribution. Therefore, one could expect peripheral populations to be subject to a higher level of stress than more central populations (the center–periphery hypothesis) and consequently should present a higher level of fluctuating asymmetry. To test these
Rev. Bras. entomol.. Publicado em: 2015-12
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7. Epigénesis y preformacionismo: radiografía de una antinomía inconclusa
ABSTRACTThe process of development of the embryo has inspired philosophical speculation since the advent of Western thought. Since the time of Aristotle two antithetical conceptual models have traditionally been used to understand embryogenesis: either form or structure is preformed in the embryo or it is newly formed with each generation. Our aim in this ar
Sci. stud.. Publicado em: 2015-09
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8. Morphology and dynamics of male gametogenesis in Sympterygia bonapartii (Chondrichthyes, Rajidae) from Northern Patagonia
ABSTRACT The smallnose fanskate, Sympterygia bonapartii Müller & Henle, 1841 is one of the most disembarked items in commercial harbors in Argentina. In this work, the microscopic architecture of mature male gonads and the dynamics of cysts development are analyzed as a contribution to awareness of the reproductive biology of the species. Some biological da
Iheringia, Sér. Zool.. Publicado em: 2015-09
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9. Evo-devo of non-bilaterian animals
The non-bilaterian animals comprise organisms in the phyla Porifera, Cnidaria, Ctenophora and Placozoa. These early-diverging phyla are pivotal to understanding the evolution of bilaterian animals. After the exponential increase in research in evolutionary development (evo-devo) in the last two decades, these organisms are again in the spotlight of evolution
Genet. Mol. Biol.. Publicado em: 21/08/2015
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10. Biology of Triatoma carcavalloi Jurberg, Rocha & Lent, 1998 under laboratory conditions
Introduction Triatoma carcavalloi is a wild species that is found in sympatry with Triatoma rubrovaria and Triatoma circummaculata, which are vectors of Trypanosoma cruzi currently found in rural areas of Rio Grande do Sul, Brazil. Methods Fertility was assessed and to determine the incubation period, the eggs were observed until hatching. The first meal
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-06
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11. Survival dynamics of Melocactus conoideus Buining & Brederoo (Cactaceae), a threatened species endemic to northeastern Brazil
Studies on the survival of species are essential to understanding their biology and to developing effective conservation and management plans. This study aimed to determine the best model to explain the survival of the species Melocactus conoideus on the basis of time, density, age structure and habitat location, as well as to describe the interactions among
Acta Bot. Bras.. Publicado em: 2014-06
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12. Innatismo y control genético
The aim of the present paper is to defend a partial reductionist explication of the concept of innateness in cognitive science. Firstly, I specify a set of minimal conditions for the analysis of the innateness concept. Secondly, I present the main proposals in dispute, namely, the reductionist, autonomist and skeptical accounts of innateness. After criticizi
Manuscrito. Publicado em: 2013-12