Sexual Systems
Mostrando 13-24 de 109 artigos, teses e dissertações.
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13. Prevalência e fatores de risco para Chlamydia trachomatis em parturientes, de 15 a 24 anos, no Brasil
Objective: To estimate the prevalence of and risk factors for Chlamydia trachomatis (CT) infection in young parturient women in Brazil. Methods: A national cross-sectional study of parturient women, aged 15 to 24 years, attending Brazilian public hospitals was performed in 2009. Participants answered a questionnaire including demographic, behavioral, and cli
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/03/2012
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14. Mixed reproduction systems in Opuntia monacantha (Cactaceae) in Southern Brazil
The Cactaceae have morphological and physiological adaptations associated with their life histories that are reflected in different modes of reproduction and multiplication. The reproductive phenology, preferential reproductive mode, and the sexual and asexual multiplication of Opuntia monacantha were investigated between 2003 and 2006 in two restinga (sandy
Braz. J. Bot.. Publicado em: 2012
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15. Avaliação da Proporção Sexual de Embriões Desenvolvidos In Vitro e de Progênie a Campo de Touros Jovens. / Evaluation of the Sex Ratio of Embryos Developed In Vitro and in Field Progeny of Young Sires.
Some of the main problems that affect the in vitro production of embryos is the variation among bulls in relation to fertility and the greater birth of male embryos. Many factors can change the ratio 1:1 between the genders, both in the in vitro production of embryos and in the method of artificial insemination. To try to change this sex ratio in vitro, we s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/08/2011
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16. Desenvolvimento floral e expressão sexual em espécies de Ficus L. (Moraceae) / Floral development and sex expression in species of Ficus L. (Moraceae)
The absence of reproductive organs in some flowers may ontogenetically arise by organ loss or suppression. Ficus L. is an interesting model for floral developmental studies, due to its diversity in sexual systems. The aim of this study was to compare the morphology of the floral development in Ficus citrifolia (monoecious), F. hispida (gynodioecious), F. rac
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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17. Alterações no local de inserção e satisfação com o método entre usuárias de implantes contraceptivos subdérmicos / Local signs and symptoms at the site of insertion and women s evaluation of their satisfaction with two contraceptive implant systems
Objectives: The study was conducted to assess the prevalence of local signs and symptoms at the insertion site in the arm, and the evaluation of the women s satisfaction with the method and with the new bleeding patterns among users of subdermal releasing-implants, levonorgestrel (LNG, Jadelle®) and etonogestrel (ENG, Implanon®) systems. Methods: A total o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/05/2010
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18. Chilled packing systems for fruit flies (Diptera: Tephritidae) in the sterile insect technique
We evaluated three packing systems (PARC boxes, "GT" screen towers and "MX" screen towers) for the emergence and sexual maturation of sterile fruit flies, at three adult fly densities (1, 1.2 and 1.3 fly/cm²) and three food types. At the lowest density, results showed no significant differences in the longevity and flight ability of adult Anastrepha ludens
Neotropical Entomology. Publicado em: 2010-08
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19. Polinização entomófila de abobrinha, Cucurbita moschata (Cucurbitaceae)
The objectives of this work were to determine the squash entomofauna in the region of Viçosa, Minas Gerais state, to study their behavior on flowers and their importance for pollination, verifying the role of each pollinator. The most common species were Trigona spinipes (Fabricius), Trigona hyalinata (Lepeletier), Apis mellifera (L.) and Melipona quadrifas
Neotropical Entomology. Publicado em: 2010-04
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20. Sexual selection and sexual size dimorphism in three Zygoptera (Odonata) species of the southeastern Brazil. / Seleção sexual e sua relação com o dimorfismo sexual em três espécies de Zygoptera (Odonata) no Sudeste do Brasil
O dimorfismo sexual nas espécies pode surgir a partir da seleção decorrente dos diferentes sistemas reprodutivos. Estudos comportamentais de espécies neotropicais são raros e pouco se sabe sobe as espécies brasileiras. Neste estudo, foram descritos o comportamento de três espécies neotropicais que ocorrem no Cerrado brasileiro: Acanthagrion truncatum
Publicado em: 2010
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21. Decision support system development for growth, nutrition, and sexual maturation analysis for primary care use. / Desenvolvimento de um programa de apoio à decisão para análise do crescimento, nutrição e maturação sexual para uso na atenção primária
The main drive to develop a Health Decision Support System (HDSS) lies on creating a digital system to help medical practitioners exposed to an ever increasing quantity of data, information and knowledge which they have to resort to in order to conduct their duties properly. In a practice field such as adolescent healthcare, in which physicians diagnose devi
Publicado em: 2010
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22. Biologia reprodutiva de espécies de Bignoniaceae ocorrentes no Cerrado e variações no sistema de autoincompatibilidade
Bignoniaceae present mainly self-incompatibility system and diploid chromosome number, although some self-fertile, apomictic and polyploid species have been reported. The Cerrado flora seems to concentrate a high number of polyploid angiosperm species and the herbaceous-shrub layer presents species predominantly self-fertile, which contrasts with the mostly
Publicado em: 2010
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23. Estudo da associação do polimorfismo genético em carcinomas da tiróide / Study on the association of genetic polymorphism in thyroid cancer
Thyroid nodules are common in clinical practice and the incidence of thyroid cancer is increasing throughout the world. Certainly, an important factor for the increase of the incidence is the use of ultrasound and PAFF. The identification of genetic polymosphism is important for understanding the potential mechanisms involved in thyroid carcinogenesis. We hy
Publicado em: 2010
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24. Políticas públicas de inclusión en la educación superior los casos de Argentina y Brasil
Inclusive policies in higher education are planned to achieve racial, cultural and sexual diversity in institutions, similarly to social diversity itself. Such policies are intended to repair historical discrimination that has contributed to the unequal situation those groups have been facing. For such, the establishment of Affirmative Action Policies in the
Pro-Posições. Publicado em: 2009-08