106 research outputs found

    Preconceito : Texto de apoio da Unidade Curricular de Multiculturalidade (Opção), 2º ano do CLE

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    info:eu-repo/semantics/draf

    Transmission of the pine wood nematode Bursaphelenchus xylophilus through oviposition activity of Monochamus galloprovincialis (Coleoptera: Cerambycidae)

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    Transmission of Bursaphelenchus xylophilus (PWN) by the oviposition of Monochamus galloprovincialis was studied in Portugal. Female insects laid eggs on 77% of pine bolts on the laboratory, of which 37% became infected with PWN, with a mean of 290 nematodes. Inside the PWN affected zone 50 P. pinaster trap-trees were created between May and September 2001 and 2002, of which 29 were colonised by M. galloprovincialis and only four became infected by the nematode. The low transmission efficiency detected both on laboratory and field suggests that nematode transmission through the vector’s oviposition activity may be a secondary component of the pine wilt disease epidemiology in Portugal

    A Gronwall inequality and the Cauchy-type problem by means of ψ-Hilfer operator

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    In this paper, we propose a generalized Gronwall inequality through the fractional integral with respect to another function. The Cauchy-type problem for a nonlinear differential equation involving the psi-Hilfer fractional derivative and the existence and uniqueness of solutions are discussed. Finally, through generalized Gronwall inequality, we prove the continuous dependence of data on the Cauchy-type problem.1118710

    Desenvolvimento das competências culturais nos enfermeiros com famílias migrantes a partir da utilização do MDAIF

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    Explora-se o desenvolvimento das competências culturais nos enfermeiros com famílias migrantes a partir da utilização do MDAIF, a partir da proposta de um estudo dedutivo-indutivo.info:eu-repo/semantics/acceptedVersio

    Microbiome Associated with the Mycangia of Female and Male Adults of the Ambrosia Beetle Platypus cylindrus Fab. (Coleoptera: Curculionidae)

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    The ambrosia beetle Platypus cylindrus is a major cork oak pest in Portugal. Beetles have different roles in host tree colonization and are equipped with specific structures (mycangia) for fungal transportation. The information on bacterial composition associated with mycangia is scarce. The bacterial community present in the mycangia of P. cylindrus male and female beetles collected from cork oak galleries was investigated. Mycangia anatomical structure was also explored using histological and 3D imaging techniques to highlight evidence of biological sexual dimorphism. A diverse bacterial community with few gender-specific bacteria was shown and histology revealed connections linking external and internal tissues only in females, providing the first insights into sexual differentiation for bacteria in a Platypodinae beetle species.The ambrosia beetle Platypus cylindrus Fab. (Coleoptera: Curculionidae) is a major cork oak pest in Portugal. Female and male beetles have different roles in host tree colonization and are both equipped with prothoracic mycangia for fungal transportation. Despite a known beneficial role of bacteria in ambrosia beetles, information on bacterial composition associated with prothoracic mycangia structures is scarce. Bacterial community from mycangia of P. cylindrus male and female beetles collected from cork oak galleries was investigated by means of 16S metagenomics. Mycangia anatomical structure was also explored with histological techniques and X-ray computed microtomography to highlight evidence supporting biological sexual dimorphism. A bacterial community with highly diverse bacterial taxa with low abundances at the genus level was revealed. Lactobacillales, Leptotrichia, Neisseria, Rothia, and Sphingomonadaceae were significantly more abundant in males, while Acinetobacter, Chitinophagaceae, Enterobacteriaceae, Erwiniaceae, Microbacteriaceae, and Pseudoclavibacter were more abundant in females. Additionally, a core bacteriome of five genera was shared by both sexes. Histological examination revealed visible connections linking external and internal tissues in females, but none in males. Overall, these results provide the first insights into sexual differentiation for bacteria in a Platypodinae beetle species, identifying key patterns of bacteria distribution in the context of beetle ecology and functional behavior.info:eu-repo/semantics/publishedVersio

    Parasitoids of Monochamus galloprovincialis (Coleoptera, Cerambycidae), vector of the pine wood nematode, with identification key for the Palaearctic region

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    The parasitoid complex associated with Monochamus galloprovincialis (Olivier), vector of the pine wood nematode, is discussed. Four species of the family Braconidae and one Ichneumonidae were found associated with Monochamus galloprovincialis in Portugal, namely Atanycolus denigrator (Linnaeus), Atanycolus ivanowi (Kokujev), Cyanopterus flavator (Fabricius), Doryctes striatellus (Nees) (Braconidae), and Xorides depressus (Holmgren) (Ichneumonidae). Atanycolus ivanowi, Atanycolus denigrator, Doryctes striatellus and Xorides depressus are new species for Portugal fauna, and Monochamus galloprovincialis is recorded as a new host of Xorides depressus. A key for determination of the ichneumonoid parasitoids of the pine sawyer is provided for the Palaearctic fauna

    Imigrantes ucranianos em Portugal : da satisfação das necessidades de imigração à adopção de comportamentos saudáveis

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    Tese de Doutoramento em Psicologia na especialidade de Psicologia Intercultural apresentada à Universidade AbertaA Ucrânia é a segunda comunidade estrangeira mais representativa em Portugal, com 52.293 imigrantes ucranianos que representavam, em 2009, 12% do universo da comunidade estrangeira a residir em Portugal. As necessidades resultantes do processo de migração iniciam-se no país de origem, e confrontam-se com as singularidades que irão encontrar na sociedade de acolhimento. Os modos de aculturação interferem na adopção dos comportamentos saudáveis. Este enquadramento sugere-nos a finalidade deste estudo assim como a pergunta de partida. A finalidade é conhecer e interpretar o perfil sócio demográfico e comportamental dos imigrantes ucranianos em Portugal. O que se traduz na seguinte pergunta de partida: “que relação existe entre o processo migratório dos Imigrantes Ucranianos em Portugal, a satisfação das necessidades emergentes desse movimento migratório e a adopção de comportamentos de saúde?”. Utilizamos a triangulação de métodos, a recolha de dados ocorreu através do inquérito quer na forma de questionário, quer na de entrevista. Realçamos que, devido às características culturais e linguísticas, optamos por administrar um questionário bilingue. Os itens emergiram baseados na observação participada, na revisão de literatura e em entrevistas exploratórias que nos permitiram conceber um corpus de conhecimento. A amostragem foi probabilística, por conglomerados. Na sequência do procedimento, o conglomerado que constitui a amostra do nosso estudo, corresponde ao distrito de Lisboa sendo constituído por 1970 associados inscritos na Associação dos Ucranianos Imigrantes de Lisboa e na Escola Ucraniana “Dyvosvit”. Destes participaram, voluntariamente, 143 imigrantes ucranianos, que constituem a nossa amostra. Como principal resultado salientamos a existência de uma relação estatisticamente significativa e positiva entre a Satisfação das Necessidades de Imigração e a adopção de Comportamentos Saudáveis, globalmente quanto mais satisfeitas estiverem as necessidades de imigração, maior será a adopção de comportamentos saudáveis. Poderemos concluir, que o modo de aculturação do imigrante ucraniano à sociedade de acolhimento influencia a adopção de comportamentos saudáveis.Ukraine is the second most representative foreign community in Portugal, with 52,293 immigrants representing in 2009, 12% of the universe of all foreign community living in Portugal. The needs resulting from the migration process begin at home and face up with the singularities they will find in the host community. The modes of acculturation interfere with the adoption of healthy behaviors. This framework suggests the purpose of this study as well as our starting question. The purpose is to understand and interpret the socio demographic and behavioral profile of Ukrainian immigrants in Portugal. What is reflected in the following initial question: "What is the relationship between the migration process of Ukrainian immigrants in Portugal, with the satisfaction of the emerging needs of migratory movement and the adoption of healthy behaviors?". We used a triangulation method, the collection of data occurred throughout an inquiry either in the form of a questionnaire and of interviews. To emphasize that, due to cultural and linguistic characteristics, we chose to administer a bilingual questionnaire. The items emerged based upon participant observation, on literature reviews and on exploratory interviews that enabled us to design a corpus of knowledge. The sample was probabilistic, by clusters. Following the procedure, the sample cluster in our study, corresponds to Lisbon district, 1970 are members enrolled in the Lisbon Ukrainian Association of Immigrants and on the Ukrainian School "Dyvosvit”. Out of those, 143 Ukrainian immigrants participated voluntarily, they are our sample. The main result to emphasize is the existence of a statistically positive relationship between the satisfaction of the needs of Immigration and the adoption of healthy behaviors, and overall the more satisfied needs of immigration are, greater is the adoption of healthy behaviors. We therefore conclude that the mode of acculturation of the Ukrainian immigrants to the host society do influence the adoption of healthier behaviors

    The stone pine, Pinus pinea L., a new highly rewarding host for the invasive Leptoglossus occidentalis

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    Research ArticleThe invasive seed bug Leptoglossus occidentalis, a species native to Western North America, is of major concern for the producers of stone pine seeds in the Mediterranean countries. The large size of these edible seeds and their nutritive content may represent a pull factor for the seed bug. Cone and seed traits of three main Mediterranean pine species: P. pinea, P. pinaster, and P. halepensis, were evaluated. Preference trials with cone-bearing branches, individual cones and seeds were conducted to test host preference among the three host species. Considering the kernel size, stone pine seeds provide 4 to 13 times more reward than P. pinaster and P. halepensis seeds, respectively, but also needed a greater effort to be reached as measured by coat thickness. Still, the benefit/cost ratio was higher on P. pinea. Individual seeds and cones of P. pinea were 2 to 3 times more consumed than those of the two other pine species. However, branch preference trials did not reveal any difference in bug visits. Moreover, adults manifested strong group behaviour on branches, frequently dissociating into two persisting groups. The implications of these results for P. pinea producing areas are discussedinfo:eu-repo/semantics/publishedVersio
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