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Sample records for acari em turdus

  1. Ácaros de penas e carrapatos (Acari associados a Turdus albicollis Vieillot (Aves, Muscicapidae em uma área de Mata Atlântica da Ilha Grande, Rio de Janeiro, Brasil Feather mites and ticks (Acari associated to Turdus albicollis Vieillot (Aves, Muscicapidae in an area of Atlantic Forest at Ilha Grande, Rio de Janeiro, Brasil

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    Alline Storni

    2005-06-01

    Full Text Available O parasitismo é um importante mecanismo que afeta populações e comunidades. O objetivo deste estudo foi investigar a fauna de ectoparasitos que habita o corpo do sabiá-de-coleira, Turdus albicollis Vieillot, 1818 e avaliar se a massa corporal do hospedeiro é afetada por estes parasitos. Os indivíduos de T. albicollis foram mensalmente capturados na Ilha Grande, Rio de Janeiro, no período de julho de 1999 a junho de 2000, em uma área de Floresta Atlântica. As aves foram individualmente marcadas, pesadas e examinadas para registrar e quantificar a presença de ectoparasitos. A abundância e a localização dos parasitos no corpo do hospedeiro foram registradas. Em 54 indivíduos de T. albicollis amostrados, foram encontrados duas espécies de ectoparasitos. A prevalência de ácaros de penas, Pterodectes turdinus Berla, 1959, foi de 72,2% enquanto que a de carrapatos, Amblyomma longirostre Koch, 1844, foi de 27,8%. A abundância mensal de P. turdinus foi significativamente relacionada com os meses do ano, sendo maior nos meses com menor freqüência de chuva. Não houve relação estatisticamente significativa entre a massa corporal do hospedeiro (g e a abundância total de ácaros de penas e carrapatos.Parasitism is an important mechanism affecting populations and communities. The purpose of this study was to investigate the ectoparasites fauna living on the body of the white-necked trush, Turdus albicollis Vieillot, 1818, and to evaluate if the host body mass is affected by these parasites. Turdus albicollis were monthly captured at Ilha Grande, Rio de Janeiro, from July 1999 to June 2000 in an area of Atlantic Forest. The birds were individualy marked, weighed and carefully checked to record and quantify the presence of ectoparasites. Parasite abundance and location on the bird's body were recorded. In 54 individuals of T. albicollis sampled, two ectoparasite species were found. The prevalence of the feather mite Pterodectes turdinus

  2. Primeiro registro de Tetranychus urticae (Acari: Tetranychidae em mudas de teca no Brasil

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    Alexandre dos Santos

    2014-07-01

    Full Text Available O ácaro fitófago Tetranychus urticae (Kock, 1836 (Acari: Tetranychidae foi relatado e suas injúrias caracterizadas pela primeira vez em viveiro de produção mudas de teca (Tectona grandis no Brasil.

  3. Temperature-dependent development and reproductive traits of <em>Tetranychus macfarlaneiem> (Acari: Tetranychidae)

    DEFF Research Database (Denmark)

    Ullah, Mohammad Shaef; Haque, Md. Ahsanul; Nachman, Gösta

    2012-01-01

    Development and reproductive traits of Tetranychus macfarlanei Baker & Pritchard (Acari: Tetranychidae) were investigated on kidney bean, Phaseolus vulgaris L., at eleven constant temperatures. Tetranychus macfarlanei was able to develop and complete its life cycle at temperatures ranging from 17...

  4. Primeiro registro de Oligonychus yothersi (McGregor (Acari: Tetranychidae em Eucalyptus grandis Hill ex Maiden no Brasil First record of Oligonychus yothersi (McGregor (Acari: Tetranychidae on Eucalyptus grandis Hill ex Maiden in Brazil

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    Fabrício Fagundes Pereira

    2005-08-01

    Full Text Available Relata-se a infestação de um ácaro-vermelho em mudas clonais de Eucalyptus grandis Hill ex Maiden, mantidas em casa de vegetação no município de Martinho Campos, Minas Gerais. O ácaro foi observado na parte superior das folhas que exibiam sinais de sucção de seiva e bronzeamento. Essas injúrias causaram desenvolvimento anormal e morte de plantas. O ácaro foi identificado como Oligonychus yothersi (McGregor (Acari: Tetranychidae, e isso representa o primeiro registro dessa espécie em mudas clonais de E. grandis no Brasil.An infestation of the red spider mite was reported in clone seedlings of Eucalyptus grandis Hill ex Maiden under greenhouse conditions, in the municipality of Martinho Campos, Minas Gerais State. The spider mite was found on the leaf upper faces with signs of sap suction and bronzing. Such injuries caused abnormal development and plant death. The spider mite was identified as Oligonychus yothersi (McGregor (Acari: Tetranychidae. This is the first record of O. yothersi on E. grandis seedlings in Brazil.

  5. SELETIVIDADE DE INSETICIDAS A Neoseiulus californicus MCGREGOR (ACARI: PHYTOSEIIDAE EM MACIEIRA, NO RIO GRANDE DO SUL AGROCHEMICAL SELECTIVITY TO Neoseiulus californicus MCGREGOR (ACARI: PHYTOSEIIDAE ON APPLE IN RIO GRANDE DO SUL

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    LINO BITTENCOURT MONTEIRO

    2001-12-01

    Full Text Available Testes para determinar os efeitos de agroquímicos homologados para macieira foram realizados em laboratório sobre Neoseiulus californicus (Acari: Phytoseiidae. Os indivíduos testados foram coletados de um pomar comercial da Agriflor Ltda, em Vacaria, Rio Grande do Sul, após várias liberações inoculativas. Os inseticidas utilizados foram os tradicionalmente recomendados para o controle de pragas, principalmente mosca-das-frutas Anastrepha fraterculus (Diptera: Tephritidae. A oviposição e a mortalidade dos ácaros foram avaliadas 12; 24; 48 e 96 horas após a pulverização, cujos produtos foram classificados em quatro classes de toxicidade (IOBC/WPRS. Azinphos ethyl, deltametrina e fenthion provocaram 100% de mortalidade, sendo que dimethoate, fenitrotion, paration, phosmet e triclorfon foram levemente nocivos (classe 2. Malation foi considerado neutro para esta população.The side-effects of agrochemical to Neoseiulus californicus (Acari: Phytoseiidae were studied in laboratory. The mites were collected in commercial apple orchard of Agropastoril Rincão das Flores, in Vacaria, Rio Grande do Sul, Brazil, after successive inoculative releases. The insecticids used were recommended to control of same pest, as Anastrepha fraterculus (Diptera: Tephritidae. The reproduction effect and mortality were evalued 12, 24, 48 and 96 hours after pulverization, while the agrochemical were ranked in toxicity classes, according to IOBC/WPRS. Azinphos ethyl, deltametrina e fenthion were harmful with ca. 100% of mortality in 24 hours, dimethoate, fenitrotion, paration, phosmet e triclorfon were slightly harmful (class 2. Malation was harmless.

  6. Experimental infestation with the immatures of Amblyomma dissimile Koch, 1844 (Acari: Ixodidae on Tropidurus torquatus (Lacertilia: Iguanidae and Oryctolagus cuniculus Infestação experimental com as fases imaturas de Amblyomma dissimile Koch, 1844 (Acari: Ixodidae em Tropidurus torquatus (Lacertilia: Iguanidae e Oryctolagus cuniculus

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    L.H.T. Freitas

    2004-02-01

    Full Text Available Larvas provenientes de duas fêmeas de Amblyomma dissimile Koch, 1844 (Acari: Ixodidae, naturalmente ingurgitadas em uma iguana (Iguana iguana e provenientes do Estado do Mato Grosso, foram utilizadas na infestação experimental de lagartos da espécie Tropidurus torquatus e coelhos domésticos. As larvas alimentadas em ambos os hospedeiros realizaram ecdise para ninfas. As ninfas apenas ingurgitaram no lagarto e mudaram para machos e fêmeas. Este é o primeiro registro do parasitismo de larvas e ninfas de A. dissimile em T. torquatus e de larvas em coelhos.

  7. Dinâmica populacional de Calepitrimerus vitis (Nalepa (Acari: eriophyidae em cultivares de videira na região da campanha do Rio Grande do Sul

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    Paulo Ricardo Ebert Siqueira

    2013-06-01

    Full Text Available Na Região da Campanha do Rio Grande do Sul, o ácaro-da-ferrugem-da-videira, Calepitrimerus vitis (Nalepa (Acari: Eriophyidae, é encontrado com frequência em vinhedos de cultivares europeias, desde a safra de 2004/2005, causando bronzeamento nas folhas. A dinâmica populacional de C. vitis nas cultivares Chardonnay e Merlot foi avaliada em vinhedo comercial localizado no município de Dom Pedrito, na região da Campanha, durante os anos agrícolas de 2005/2006 e 2006/2007, por meio de amostragem realizada em folhas das posições basal, intermediária e apical de ramos de produção. O pico populacional de C. vitis ocorre entre o final de fevereiro e o início de março, sendo seguido de forte declínio populacional. A infestação variou de intensidade entre as cultivares de acordo com o ano, sendo a cultivar Chardonnay mais infestada no primeiro ano, e Merlot, no segundo. Folhas na posição basal, mediana e apical apresentam níveis similares de infestação. Uma correlação positiva foi encontrada entre o número de C. vitis na face abaxial das folhas e o percentual de folhas com infestação.

  8. Distribuição espacial e plano de amostragem de Calacarus heveae (Acari em seringueira Spatial distribution and sampling plan for Calacarus heveae (Acari on rubber trees

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    Noeli Juarez Ferla

    2007-12-01

    Full Text Available Calacarus heveae Feres, 1992 é um eriofídeo descrito de espécimes coletados em plantas de seringueira (Hevea brasiliensis, Euphorbiaceae na região noroeste do Estado de São Paulo. Esse ácaro prefere a face adaxial dos folíolos e pode causar a perda do brilho, amarelecimento, bronzeamento dessa região e a subseqüente queda prematura das folhas. O objetivo deste trabalho foi analisar a distribuição de C. heveae em seringueira, selecionar a unidade de amostragem mais representativa e desenvolver um plano de amostragem para o estudo de sua flutuação populacional. O trabalho foi conduzido com os clones PB 260 e IAN 873, respectivamente nos municípios de Itiquira e de Pontes e Lacerda, ambos no Mato Grosso. Em Itiquira, diferenças significativas foram observadas em quatro ocasiões em relação ao número médio de ácaros por folha nos diferentes estratos das plantas. Nas amostragens realizadas em Pontes e Lacerda, nenhuma diferença significativa foi encontrada entre os estratos em relação àquele parâmetro. Apenas em Itiquira, em uma ocasião de amostragem, foi verificada diferença entre os três estratos, em relação à proporção de folhas infestadas. Nenhuma diferença significativa foi verificada em relação ao número médio de ácaros por folha e proporção de folhas infestadas por C. heveae a diferentes distâncias da periferia da copa. Calacarus heveae exibe distribuição agregada no campo. Para estimar a densidade de C. heveae, um plano numérico e um plano binomial de amostragem foram desenvolvidos.Calacarus heveae Feres, 1992 (Eriophyidae is a mite described from specimens collected on rubber tree (Hevea brasiliensis, Euphorbiaceae in the northwest region of the state of São Paulo. This mite prefers the adaxial face of the folioles which it can turn dry, yellowish and brownish; it can also cause leaf fall. The aim of this work was to analyze the distribution of C. heveae on rubber trees, to select the most

  9. Biological cycle of Tenuipalpus heveae Baker (Acari, Tenuipalpidae on leaflets of three rubber tree clones Ciclo de vida de Tenuipalpus heveae Baker (Acari, Tenuipalpidae em folíolos de três clones de seringueira

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    Reinaldo José Fazzio Feres

    2010-06-01

    Full Text Available Life cycle of Tenuipalpus heveae Baker (Acari, Tenuipalpidae on leaflets from three rubber tree clones. The biological cycle of Tenuipalpus heveae Baker, 1945 (Tenuipalpidae, a potential rubber tree pest mite, was studied by the observation of individuals reared on leaflets of the clones GT 1, PB 235 and RRIM 600, in controlled environmental conditions. Three daily observations were done of 60 eggs on leaflets from each clone in order to verify the development of immature stages and the female oviposition. The fertility life table was constructed based in the collected data. Mites reared on PB 235 had faster rate of development, requiring less time in days, to double its population in number (TD, and had the highest values for egg production, female longevity, net reproductive rate (Ro, intrinsic rate of natural increase (r m and finite rate of increase (λ. Lower reproductive values and the longest time necessary to reach adult stage were recorded for the mites on GT 1. In all studied clones, the deutonymphal phase had the highest viability, while the larval phase had the lowest, highlighted by the survivorship curve that indicated high mortality during this life stage. The clone PB 235 allowed the most suitable conditions for the development of T. heveae, followed by RRIM 600, while GT 1 was the less suitable substratum to rear this mite species.O ciclo de vida de Tenuipalpus heveae Baker, 1945 (Tenuipalpidae, um potencial ácaro-praga da seringueira, foi estudado a partir de indivíduos criados sobre folíolos destacados dos clones GT 1, PB 235 e RRIM 600, em condições controladas. Três observações diárias foram realizadas, acompanhando-se o desenvolvimento de 60 ovos e de sua prole em folíolos de cada um dos clones, para verificação da oviposição das fêmeas e dos estágios de desenvolvimento. A partir dos dados obtidos, foi elaborada uma tabela de vida de fertilidade. Os ácaros criados sobre folíolos de PB 235 apresentaram r

  10. Environmentally associated ticks (Acari: Ixodidae in Campo Grande, Mato Grosso do Sul, Brazil Carrapatos (Acari: Ixodidae associados com o ambiente em Campo Grande, Mato Grosso do Sul, Brasil

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    Marcos Valério Garcia

    2013-03-01

    Full Text Available Herein, we report tick species found on wild and domestic animals and in the environment during a one-year sampling period at the Brazilian Farming Research Company beef cattle unit (Embrapa Beef Cattle, which is located within the urban area of Campo Grande, Mato Grosso do Sul, Brazil. From 55 wild hosts including six different species (Nasua nasua, Cebus spp., Cerdocyon thous, Myrmecophaga tridactyla, Tamandua tetradactyla and Dasyprocta aguti, 323 ticks were collected. Amblyomma ovale ticks were found solely on coatis, and Amblyomma nodosum was identified solely on anteaters. No ticks were found on capuchin monkeys. However, Amblyomma cajennense was found on all parasitized host species with the exception of capuchin monkeys. Giant anteaters displayed the highest infestation abundance, with a mean of 53 ticks∕animal. Environmental sampling yielded 166 adult A. cajennense ticks. The tick species found on domestic animals (Rhipicephalus (Boophilus microplus, R. sanguineus, Dermacentor nitens and A. cajennense were those typically found on these hosts in Brazil. The most prevalent tick species, A. cajennense, was found on both wild and domestic animals and was also prevalent in the environment. Thus, this tick species is the primary vector that allows pathogens to bridge wild and domestic animals in the Cerrado.Neste trabalho são descritas as espécies de carrapatos de animais selvagens e domésticos e do ambiente coletados por um ano na EMBRAPA Gado de Corte localizado na área urbana de Campo Grande, Mato Grosso do Sul, Brasil. Dos 55 hospedeiros selvagens de seis espécies diferentes (Nasua nasua, Cebus spp., Cerdocyon thous, Myrmecophaga tridactyla, Tamandua tetradactyla e Dasyprocta aguti foram coletados 323 carrapatos. Amblyomma ovale foi encontrado apenas em quatis e Amblyomma nodosum apenas sobre tamanduás. Nenhum carrapato foi encontrado sobre macacos-prego. Por outro lado, Amblyomma cajennense foi encontrado em todos os hospedeiros

  11. Ocorrência de Ornithonyssus bursa (Berlese, 1888 (Acari: Macronyssidae em filhotes de Megascops choliba (corujinha-do-mato e Pitangus sulphuratus (bem-te-vi, no Rio Grande do Sul, Brasil Ocurrence of Ornithonyssus bursa (Berlese, 1888 (Acari: Macronyssidae on Megascops choliba (tropical screech-owl and Pitangus sulphuratus (great kiskadee nestlings in the Rio Grande do Sul State, Brazil

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    Carolina S. Mascarenhas

    2009-12-01

    Full Text Available O Núcleo de Reabilitação da Fauna Silvestre e Centro de Triagem de Animais Silvestres da Universidade Federal de Pelotas - RS atendeu dois filhotes de Megascops choliba (corujinha-do-mato (Strigiformes - Strigidae e dois de Pitangus sulphuratus (bem-te-vi (Passeriformes - Tyrannidae intensamente parasitados por ácaros, em maio de 2005 e dezembro de 2006, respectivamente. Os filhotes e o ninho de P. sulphuratus foram recolhidos na zona urbana da cidade de Pelotas - RS após forte temporal. Os ácaros foram removidos, colocados em álcool 70% e levados ao laboratório de parasitologia para identificação. Os espécimes foram clarificados em lactofenol, montados em meio de Hoyer e identificados como Ornithonyssus bursa (Acari - Macronyssidae. Registra-se Megascops choliba e Pitangus sulphuratus como hospedeiros de Ornithonyssus bursa, no Rio Grande do Sul, Brasil.The Center for Rehabilitation of Wildlife and Center for Selection of Wild Animal of the Federal University of Pelotas has attended two nestlings of Megascops choliba (tropical screech-owl (Strigiformes - Strigidae and two of Pitangus sulphuratus (great kiskadee (Passeriformes - Tyrannidae heavily parasitized by mites, in May 2005 and December 2006, respectively. The nestlings and the nest of P. sulphuratus were collected in the Pelotas urban area after severe storms. The mites were removed, clarified in lactofenol, permanently mounted in Hoyer's medium and identified as Ornithonyssus bursa (Acari - Macronyssidae. Megascops choliba and Pitangus sulphuratus are reported as host of Ornithonyssus bursa in Rio Grande do Sul State, Brazil.

  12. Infestação de Amblyomma rotundatum (Koch (Acari, Ixodidae em sapos Bufo ictericus (Spix (Amphibia, Bufonidae: novo registro de hospedeiro Infestation of Amblyomma rotundatum (Koch (Acari, Ixodidae ticks on Bufo ictericus (Spix (Amphibia, Bufonidae: new host record

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    Germano Woehl Jr.

    2002-06-01

    Full Text Available Bufo ictericus Spix, 1824 toad population (N = 125 foraging in lighted areas in the Corupá Municipality, Santa Catarina State, was surveyed to evaluate the prevalence (percentage of infestation and the mean infestation intensity of Amblyomma rotundatum Koch, 1844 (Acari, Ixodidae ticks. The prevalence was of 19.2% and the mean infestation intensity was 7.4 ticks per infested toad. For the first time B. ictericus as host of A. rotundatum is reported.

  13. The parasitism of Ixodes luciae (Acari: Ixodidae on marsupials and rodents in Peruvian Amazon O parasitismo do Ixodes luciae (Acari: ixodidae em marsupiais e em roedores na Amazônia Peruana

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    María Mónica Díaz

    2009-01-01

    Full Text Available In this work the infestation with I. luciae on Didelphimorphia and Rodentia in different environments of Peruvian Amazon was studied. Didelphimorphia was represented by the family Didelphidae. Specimens belonging to Caluromys lanatus, Didelphis marsupialis, Marmosops sp.2, Metachirus nudicaudatus, Philander andersoni and Philander opossum were infested with adults I. luciae and one Micoureus sp. was infested with larvae. In Rodentia, the infestation with I. luciae nymphs was restricted to Hylaeamys perenensis, Hylaeamys yunganus and Oligoryzomys microtis, while one Oecomys bicolor (all Cricetidae was infested with larvae of this species. The few larvae were found on rodents captured in primary forest. The only significant difference (P No presente trabalho, infestações por Ixodes luciae em Didelphimorphia e Rodentia em diferentes ambientes da Amazônia peruana foram estudadas. Didelphimorphia foi representada pela família Didelphidae. Espécimes pertencentes a Caluromys lanatus, Didelphis marsupialis, Marmosops sp., Metachirus nudicaudatus, Philander andersoni e Philander opossum foram encontrados infestadas por adultos de I. luciae; um Micoureus sp. foi encontrado infestado por larvas. Em Rodentia, a infestação por ninfas de I. luciae estiveram restritas a Hylaeamys perenensis, Hylaeamys yunganus e Oligoryzomys microtis, enquanto que um Oecomys bicolor (todos Cricetidae esteve infestado por larvas de I. luciae. As poucas larvas foram encontradas em roedores capturados na floresta primária. A única diferença significante (P < 0.05 na prevalência de carrapatos adultos em Didelphimorphia foi entre P. andersoni e M. nudicaudatus (distribuição chi-quadrado. A distribuição de carrapatos adultos foi significativamente diferente em P. andersoni quando comparado com M. nudicaudatus, P. opossum e D. marsupialis (teste Kruskal-Wallis. Nenhum efeito significante do mês ou ambiente foi observado em relação à infestação por carrapato

  14. Toxicidade diferencial de produtos à base de abamectina ao ácaro Brevipalpus phoenicis (Geijskes, 1939 (Acari: Tenuipalpidae em citros Differential toxicity of abamectin based products over Brevipalpus phoenicis (Geijskes, 1939 (Acari: Tenuipalpidae mite in citrus

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    Daniel Júnior de Andrade

    2010-03-01

    Full Text Available O ácaro Brevipalpus phoenicis é uma das principais pragas dos citros por ser vetor do "Citrus Leprosis Virus" (CiLV, agente causal da leprose, uma das mais graves doenças da citricultura. Objetivou-se avaliar o efeito tóxico de produtos à base de abamectina sobre o ácaro B. phoenicis. Foram realizados um experimento de ação direta e três de ação residual no Laboratório de Acarologia do Departamento de Proteção de Plantas (Fitossanidade da FCAV - UNESP, Jaboticabal-SP. O delineamento adotado nos bioensaios foi o inteiramente casualizado, onde 10 tratamentos foram repetidos 7 vezes, sendo cada repetição composta por um fruto de laranja. Os tratamentos estudados (mL p.c./100 L de água foram: Acaramik a 20; 30; 40 e 50 mL; Vertimec a 30 e 40 mL; Abamectin Nortox a 30 e 40 mL; Tricofol a 77 mL e uma testemunha sem aplicação. Utilizaram-se frutos com presença de verrugose, que foram lavados e parcialmente parafinados, deixando-se uma área sem parafina, que foi circundada com cola entomológica para contenção dos ácaros. Transferiram-se 20 ácaros adultos B. phoenicis para cada fruto. No bioensaio de ação direta, a transferência foi realizada antes das aplicações e, nos bioensaios de ação residual, aos 5; 10 e 15 dias após a aplicação dos produtos. A aplicação dos produtos sobre os frutos foi realizada em Torre de Potter. Os resultados obtidos nos bioensaios evidenciaram que os melhores tratamentos foram: Tricofol a 77 mL, Acaramik a 40 e 50 mL e Vertimec a 40 mL. De forma geral, os produtos testados podem ser utilizados no controle do ácaro B. phoenicis.The mite Brevipalpus phoenicis (Geijskes, 1939 (Acari: Tenuipalpidae is one of the most important pests in Brazil citrus plantation, because it is the virus "Citrus Leprosis Virus" (CiLV vector, one of the most serious citrus plantation diseases. The purpose of this experiment was to evaluate the toxical effect of abamectin in the mite B. phoenicis. It was performed

  15. Ácaros plumícolas (Acari: Astigmata) em aves do Cerrado do Distrito Federal, Brasil

    OpenAIRE

    Kanegae,Mieko Ferreira; Valim,Michel; Fonseca,Marcelo Andrade da; Marini,Miguel Ângelo; Freire,Nicolau Maués Serra

    2008-01-01

    O objetivo do estudo foi identificar os ácaros plumícolas em aves do cerrado. O mesmo foi realizado na Fazenda Água Limpa (FAL), Distrito Federal, Brasil, entre janeiro e agosto de 2002. As aves foram capturadas com rede de neblina e anilhadas. Foram amostradas 696 aves pertencentes a 83 espécies e 25 famílias de Passeriformes e não-Passeriformes. Foram encontrados ácaros plumícolas pertencentes a cinco famílias: Analgidae, Trouessartiidae, Proctophyllodidae, Avenzoariidae e Psoroptoididae. O...

  16. Mortalidade do ácaro predador Neoseiulus californicus (Acari: Phytoseiidae em testes de toxicidade residual de inseticidas e acaricidas usuais em pomáceas Mortality of predatory mite Neoseiulus californicus (Acari: Phytoseiidae in residual toxicity persistence tests

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    Marcelo Gustavo Ruiz

    2008-12-01

    Full Text Available Os ácaros fitoseídeos, especialmente Neoseiulus californicus (McGregor, são importantes agentes de controle biológico de ácaros tetraniquídeos-praga nas culturas de pomáceas no "Alto Valle del Río Negro y Neuquén", Argentina. Neste trabalho, avaliou-se a mortalidade de N. californicus quando exposto a resíduos dos inseticidas azimphos-methyl, carbaryl e cyfluthrin, e dos acaricidas cyhexatin e propargite. Os produtos foram aplicados às concentrações recomendadas em plantas de pereira. Um, três, seis e dez dias após a aplicação (DAA, folhas tratadas foram retiradas das plantas para a preparação de unidades experimentais. Cinco adultos de N. californicus, provenientes de criação-estoque, foram transferidos para cada unidade, onde pólen de taboa foi fornecido como alimento. As unidades foram mantidas a 25 ± 2 ºC, 60 ± 10% de umidade relativa e fotoperíodo de 14 h. A mortalidade do ácaro foi avaliada 24 h após o confinamento. As médias de mortalidade foram comparadas pelo teste de Dunnett, a 5% de probabilidade. A progressão do declínio do efeito dos produtos testados foi submetida à análise de regressão. Nas duas primeiras datas de avaliação, todos os produtos apresentaram valores de mortalidade significativamente diferentes da testemunha tratada com água. Seis dias após a aplicação, propargite, cyhexatin e cyfluthrin apresentaram mortalidade de aproximadamente 30%, enquanto a mortalidade nos tratamentos azimphos-methyl e carbaryl apresentou níveis estatisticamente similares aos da testemunha. Dez dias após a aplicação, a mortalidade em todos os tratamentos não diferiu significativamente da testemunha. O efeito de todos os produtos apresentou declínio progressivo ao longo do período de observação, sendo significativa a 1% de probabilidade a regressão linear negativa para os valores obtidos. Os maiores efeitos negativos sobre a sobrevivência de N. californicus corresponderam aos acaricidas testados

  17. Usutu Virus in Blackbirds (Turdus merula), Czech Republic, 2011-2012

    Czech Academy of Sciences Publication Activity Database

    Hubálek, Zdeněk; Rudolf, Ivo; Čapek, Miroslav; Bakonyi, T.; Betášová, Lenka; Nowotny, N.

    2014-01-01

    Roč. 61, č. 3 (2014), s. 273-276 ISSN 1865-1674 Institutional support: RVO:68081766 Keywords : Usutu virus * blackbird * Turdus merula * Czechland Subject RIV: GJ - Animal Vermins ; Diseases , Veterinary Medicine Impact factor: 2.944, year: 2014

  18. Flutuação populacional e sintomas de dano por ácaros (Acari em seringueira no Estado do Mato Grosso, Brasil Population fluctuation and mite (Acari damage symptoms in rubber trees in the State of Mato Grosso, Brazil

    Directory of Open Access Journals (Sweden)

    Noeli Juarez Ferla

    2008-04-01

    Full Text Available Apesar da grande importância da cultura da seringueira (Hevea brasiliensis Muell. Arg. para o Brasil, pouco se conhece sobre a flutuação populacional dos ácaros nessa cultura. O objetivo deste trabalho foi estudar a flutuação populacional de ácaros na seringueira no Estado do Mato Grosso, bem como observar a evolução dos sintomas de ataque de tais pragas nessa planta. O estudo foi conduzido em campos de seringueira de Itiquira e Pontes e Lacerda, Estado do Mato Grosso, com seis clones: FX 3864, RRIM 600, IAN 873, IAN 713, PB 260 e PR 255, cujas coletas foram realizadas de agosto de 1998 a julho de 2000. Na safra de 1998/1999, a amostragem foi de 150 folhas de cada um dos estratos basal, mediano e apical, em 10 plantas ao acaso. A metodologia de coleta na safra de 1999/2000 foi alterada devido aos resultados da parcial anterior de cinco folhas do estrato mediano de cada uma das 15 plantas ao acaso. Calacarus heveae Feres foi a espécie mais freqüente em Itiquira e Phyllocoptruta serigueirae Feres em Pontes e Lacerda. A queda prematura das folhas foi observada apenas em Itiquira.Despite the importance of rubber trees (Hevea brasiliensis Muell. Arg. to Brazil, little is known about mite population fluctuation on this crop. The aim of this work was to study the fluctuation of the mite population on rubber trees in the state of Mato Grosso and to observe the evolution of the symptoms caused by their attack. This study was conducted in rubber tree fields at Itiquira and Pontes e Lacerda in the state of Mato Grosso with six clones: FX 3864, RRIM 600, IAN 873, IAN 713, PB 260 and PR 255. Samplings were conducted between August 1998 and July 2000. The 1998/1999 samples consisted of 150 leaves of each of the basal, median and apical strata of 10 plants, randomly taken. The 1999/2000 sampling methodology was changed due the results for the previous partial for five leaves of the median stratum of each of 15 plants randomly taken. Calacarus heveae

  19. Amblyomma rotundatum (Koch, 1844 (Acari: Ixodidae two-host life-cycle on Viperidae snakes Ciclo dioxênico em Amblyomma rotundatum (Koch, 1844 (Acari: Ixodidaeparasitando serpentes da família Viperidae

    Directory of Open Access Journals (Sweden)

    Daniel Sobreira Rodrigues

    2010-09-01

    Full Text Available Amblyomma rotundatum is an ixodid tick that infests ectothermic animals and reproduces exclusively by parthenogenesis. This tick has been frequently reported to infest reptiles and amphibians, under natural conditions and sometimes in captivity. It was described in Brazil and several other countries of South, Central and North America. Although many studies have reported aspects of its biology, none of them has used regularly either ophidian as hosts, or controlled temperature, humidity and luminosity for parasitic stages. The objective of this experiment was to study the life cycle of A. rotundatum feeding on Viperidae snakes under room controlled conditions at 27 ± 1 ºC temperature, 85 ± 10% relative humidity and 12:12 hours photoperiod for parasitic stages, and under B.O.D incubator conditions at 27 ± 1 ºC temperature, 85 ± 10% relative humidity and scotophase for non-parasitic stages. The total duration of the life cycle ranged from 56 to 163 days (mean of 105 days. Two-host life cycle was observed for most of the ixodid population studied.Amblyomma rotundatum é um carrapato da família Ixodidae, parasito de animais pecilotérmicos, e que se reproduz exclusivamente por partenogênese. Este carrapato é frequentemente relatado infestando répteis e anfíbios em condições naturais e, às vezes, em animais de cativeiro. Ele já foi relatado no Brasil e em vários outros países das Américas do Sul, Central e do Norte. Embora muitos estudos sobre sua biologia tenham sido publicados, nunca foram utilizados ofídios como hospedeiros e, tão pouco, foram realizados ensaios com os estádios parasitários sob condições controladas de temperatura, umidade e iluminação. O objetivo deste experimento foi estudar o ciclo biológico de A. rotundatum se alimentando em serpentes da família Viperidae sob condições ambientais controladas a 27 ± 1 ºC de temperatura, 85 ± 10% de umidade relativa do ar e 12:12 horas de fotoperíodo para est

  20. CHEMICAL CONTROL OF ACARID Brevipalpus phoenicis (Geijskes, 1939 (Acari-Tenuipalpidae, TRANSMITTER OF LEPROSIS IN CITRUS CONTROLE QUÍMICO DO ÁCARO Brevipalpus phoenicis (Geijskes, 1939 (Acari-Tenuipalpidae, TRANSMISSOR DA LEPROSE EM CITROS

    Directory of Open Access Journals (Sweden)

    saúl Edgard Mendez Sanchez

    2007-09-01

    Full Text Available

    Leprosis of citrus is becoming a serious problem for a nascent citriculture of Goiás State, for this disease provokes defoliation and sometimes even death of young ‘Pera’ plants in forming orchard. This experiment was developed in one property with a forming orchard, located in the municipality of Leopoldo de Bulhões - Goiás. The prescribed treatments, expressed in dose per plant, of commercial product were: 1 binapacril (Acricid 40 CE, 16 ml; 2 clofentezine (Acaristop 50 SC, 2.0 ml; 3 clofentezine (Acaristop 50 SC, 3.0 ml; 4 tefluron + binapacril (Nomolt + Acricid 40 CE - 1.2 and 5.0 ml; 5 cyhexatin (Plictran 50 BR, 3.2 ml; 6 avermectin + triona (Vertirnec 18 CE + Triona B, 3.0 ml and 25 ml, respectively; 7 control. These treatments were realized in two stages. In the first, were ministered only acarid-killers; in the second, it was added foliar fertilization with formula 20-36-20, containing more Mg, S, B, Zn, Fe, Mn, Mo and Co, at dose of 10 g fertilizer/plant. Estimations were realized before and at 7, 15 and 30 days after pulverization, obtaining at 7 days the best results with treatments 3, 4, 5 and 6 with 77.95%, 77.20%, 78.11% and 80.31% of control, respectively, although it had none statistic significance. At 15 and 30 days all treatments presented results up to 75% of control. It is accentuated that in treatments 5 and 6 of the stage that received foliar fertilization the plants recovered from chlorosis with greater rapidity, when confronted with other treatments.

    A leprose dos citros está se tomando problema sério para a nascente citricultura causando desfolhamento e às vezes até a morte das plantas jovens de pomares em formação. Visando ao controle do ácaro da leprose Brevipalpus phoenicis (Geijskes, 1939, o experimento foi realizado em uma propriedade com pomar em formação da

  1. Características biológicas de Boophilus microplus (acari: ixodidae a partir de infestação experimental em cão Biological characteristics of Boophilus microplus (acari: ixodidae on dog under experimental infestation

    Directory of Open Access Journals (Sweden)

    Marcos P. Franque

    2007-12-01

    Full Text Available Boophilus microplus (Canestrini, 1887, um parasita comum dos bovinos, tem sido observado em cães. Com objetivo de descrever características biológicas desse parasitismo, um cão foi infestado experimentalmente com 10.000 larvas de B. microplus previamente mantidas em câmara climatizada a 27 ± 1 ºC e umidade relativa superior a 80%. A média da fase parasitária foi de 24,4 ± 1,50 dias, com uma taxa de recuperação de 0,42%. Das 21 fêmeas desprendidas natural e precocemente do hospedeiro, 6 (28% ingurgitaram o suficiente (75,1 ± 30,23mg para realizar postura. O período médio de prépostura foi de 4,33 ± 1,37 dias e o período médio de postura de 9,17 ± 2,32 dias, com produção média de 18,78 ± 15,34mg de postura. O índice médio de produção de ovos observado foi de 22,38%. Estes resultados demonstraram que fêmeas de B. microplus alimentadas em cão experimentalmente infestado, completam seu ciclo biológico. A obtenção de fêmeas, capazes de realizar posturas viáveis, sugerem a possibilidade do cão atuar como hospedeiro alternativo para B. microplus, especialmente quando não há disponível outra espécie de hospedeiro preferencial.Boophilus microplus, a common parasite of cattle, has eventually reported in dogs. To describe biological features of this parasitism, one dog was experimentally infested with 10,000 larvae of B. microplus which were previously held in acclimatized camera at 27 ±1ºC and relative humidity up to 80%. The mean of parasitic phase was 24.4 ± 1.50 days, with 0.42% of recovery rate. Of 21 natural detached B. microplus females, six engorged enough (75.1 ± 30.23mg to achieve posture. The mean period of pre-posture was 4.33 ± 1.37 days and the means period of posture was 9.17 ± 2.32, producing a mean of 18.78 ± 15.34 posture weight. The mean of eggs production index observed was 22.38%. The results showed that B. microplus females fed on dogs to complete their life cycle. The females collected

  2. Extratos de plantas no controle de Rhipicephalus (Boophilus microplus (Canestrini, 1887 (Acari: Ixodidae em laboratório Plant extracts in control of Rhipicephalus (Boophilus microplus (Canestrini, 1887 (Acari: Ixodidae in laboratory

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    Sônia Maria Forti Broglio-Micheletti

    2009-12-01

    Full Text Available Extratos vegetais foram estudados com o objetivo de avaliar suas eficiências no controle de Rhipicephalus (Boophilus microplus (Canestrini, 1887 em laboratório. Fêmeas ingurgitadas de carrapato foram coletadas de bovinos e mantidas em placas de Petri. Foram utilizados extratos orgânicos alcoólicos 2% (peso/volume de sementes de Annona muricata L. (Annonaceae (graviola; flores de Syzygium malaccensis (L. (Myrtaceae (jambo; folhas de Cymbopogon citratus (DC. Stapf (Poaceae (capim-santo; folhas de Azadirachta indica A. Juss (Meliaceae (nim; e extrato hexânico na mesma concentração de A. indica (sementes. Os grupos-controle foram compostos por fêmeas sem tratamento e fêmeas tratadas com água destilada e esterilizada e dimetilsulfóxido (DMSO a uma concentração de 1%. O extrato de A. muricata apresentou o maior poder acaricida, com eficácia de 100%, seguido dos extratos de S. malaccensis (75 e 59,24% e A. indica (65 e 38,49%. Houve 100% de redução na eclosão das larvas quando se utilizou o extrato de sementes de A. muricata.Plant extracts were studied to evaluate its efficiency in the control of Rhipicephalus (Boophilus microplus (Canestrini, 1887 in laboratory. Engorged female ticks were collected from the cattle, kept in Petri dishes. Organic alcoholic extracts 2% (weight/volume were used: seeds of Annona muricata L. (Annonaceae (soursop; flowers of Syzygium malaccensis (L. (Myrtaceae (iamb, leaves of Cymbopogon citratus (DC. Stapf (Poaceae (holy grass, leaves of Azadirachta indica A. Juss (Meliaceae (neem and hexane extract 2% (weight/volume of A. indica (seeds. The control groups consisted of untreated females and females treated with distilled water and sterile and dimethylsulfoxide (DMSO a concentration of 1%. The extract of A. muricata (seed had the highest mortality with acaricide activity and 100% efficacy followed by extracts of S. malaccensis (75 and 59.24% and A. indica (65 and 38.49%. The seed extract of A. muricata

  3. Does twitter song amplitude signal male arousal in redwings (Turdus iliacus)?

    DEFF Research Database (Denmark)

    Lampe, H.M.; Balsby, T.J.S.; Espmark, Y.O.

    2010-01-01

    Bird songs may vary in amplitude for several reasons. Variations due to differences in environmental conditions are well known but whether signal information varies with song amplitude is less well known. In some species quiet songs are heard as a soft twitter. These twitter songs are common...... in Turdus species and may be used during escalated close range encounters when a quiet song will attract less attention from others. Male redwings (T. iliacus) sing a terminating twitter part that is quieter and highly variable both between and within males compared with the introductory motif part....... The twitter song of redwings, however, is often louder than the twitter in other Turdus species, especially during escalated song encounters. The seasonal variation in twitter duration also suggests that the twitter may signal increased aggression. We tested how male redwings responded to an assumed...

  4. Repellent activity of DEET against Amblyomma cajennense (Acari: Ixodidae nymphs submitted to different laboratory bioassays Atividade repelente do DEET contra ninfas de Amblyomma cajennense (Acari: Ixodidae em bioensaio laboratorial

    Directory of Open Access Journals (Sweden)

    Sara Fernandes Soares

    2010-03-01

    Full Text Available This study was developed to evaluate the repellent activity of N,N-diethyl-3-methylbenzamide (DEET against Amblyomma cajennense nymphs. Two repellent bioassays were compared and the effective concentration and repellent time were calculated. The fingertip test was accomplished to evaluate in vivo four concentrations of the compound (0.200; 0.100; 0.050 and 0.025 mg.cm-2 and the filter-paper bioassay to evaluate in vitro the two highest concentrations. The compound provided repellence higher than 90% in all concentrations and at least 95% repellency in the highest concentration over 5 hours. The effective concentration against 50% of tested nymphs (EC50 was 0.006 mg.cm-2 and the EC99 was 0.036 mg.cm-2. Those concentrations were lower than the ones obtained against other tick species, denoting the effectiveness of DEET against A. cajennense. The repellency time against 50% of the ticks (RT50 was 4.8 hours and the RT90 was 2.7 hours. Both bioassays were adequate to evaluate A. cajennense repellency and provided similar results; however the in vivo test is more appropriate to estimate the effective concentration and repellency time.Este estudo foi conduzido com o objetivo de avaliar a atividade repelente do N,N-diethyl-3-methylbenzamide (DEET sobre ninfas de Amblyomma cajennense. Dois bioensaios para a avaliação de repelência foram comparados e cálculos da concentração eficaz e do tempo de repelência foram realizados. Foram empregados o bioensaio da ponta do dedo, para avaliação in vivo de quatro concentações do químico (0,200; 0,100; 0,050 e 0,025 mg.cm-2 e o bioensaio do papel filtro, para a avaliação in vitro das duas concentrações mais altas. O composto conferiu mais de 90% de repelência em todas as concentrações utilizadas e 95% de repelência por mais de cinco horas na maior concentração. A concentração do composto efetiva contra 50% das ninfas testadas (CE50 foi de 0,006 mg.cm-2 e a CE99 foi de 0,036 mg.cm-2. Estas

  5. Efeito do manejo de plantas daninhas sobre Neoseiulus californicus (Acari:Phytoseiidae em pomar de macieira Effect of weed management on Neoseiulus californicus (Acari:Phytoseiidae in apple orchard

    Directory of Open Access Journals (Sweden)

    Lino Bittencourt Monteiro

    2002-12-01

    Full Text Available Avaliou-se a influência do manejo de plantas daninhas sobre o deslocamento de ácaros tetraniquídeos (Panonychus ulmi e Tetranychus urticae e do ácaro predador Neoseiulus californicus em um pomar de macieira 'Gala', onde foi implantado o controle biológico do ácaro vermelho, P. ulmi, por meio de liberações massais de N. californicus. As parcelas tiveram as plantas daninhas manejadas de três formas: sem manejo, com roçadas manuais e com herbicidas. As populações de ácaros foram avaliadas sobre as plantas daninhas, Plantago tormentosa e Erigeron sp, e sobre as folhas de macieira. As maiores populações de N. californicus foram observadas nas parcelas onde os manejos proporcionaram desenvolvimento de plantas daninhas na linha de plantio. Na parcela manejada com herbicida, houve maior população de ácaros tetraniquídeos sobre as macieiras, provavelmente, devido ao reduzido número de N. californicus. P. tormentosa foi o hospedeiro preferencial do ácaro predador. Concluiu-se que o manejo de plantas daninhas, na linha de plantio das macieiras, assume um importante papel no equilíbrio entre as populações de ácaros.The influence of weed management on tetranychid mites (Panonychus ulmi and Tetranychus urticae and phytoseids movement was evaluated. Neoseiulus californicus populations were released in an apple orchard for biological control of tetranychid mites. Three kinds of weed management were used: no weed control at all, manual control and control with herbicide. The mites were evaluated in Plantago tormentosa, Erigeron sp, and apple tree leaves. The highest population of N. californicus was observed where weed was not controlled. Tetranychid mites populations were abundant on apple trees when herbicide was used, probably due to the low population of N. californicus. P. tormentosa was the preferred host of phytoseids. The conclusion was that weed management plays an important role in the regulation of mite species in apple

  6. Distribuição espacial e abundância de carrapatos (Acari: Ixodidae) em remanescente de Mata Atlântica, Nordeste do Brasil

    OpenAIRE

    Fonseca, Cristina F. da; Lima, Débora C.V. de; Souza, Dênisson da S. e; Silva, Silvia G.N. da; Lima, Jaciara R.B. de; Oliveira, Jaqueline B. de; Moura, Geraldo J.B. de; Aléssio, Filipe M.

    2017-01-01

    RESUMO: A distribuição espacial e a abundância de carrapatos em estágio de vida livre foram examinadas em fragmentos de Mata Atlântica no Nordeste do Brasil. O estudo foi realizado em Unidades de Conservação de Proteção Integral Mata do Tapacurá e Mata do Camucim, localizadas no município de São Lourenço da Mata, Pernambuco. Os carrapatos foram capturados pelo método da bandeira de flanela em seis parcelas de 200m2, sendo três parcelas estabelecidas em uma borda de mata adjacente a uma matriz...

  7. Atividade do acaricida etoxazol sobre a mortalidade e reprodução do ácaro-da-leprose Brevipalpus phoenicis (Geijskes (Acari: Tenuipalpidae, em citros

    Directory of Open Access Journals (Sweden)

    Fernando Juari Celoto

    2010-12-01

    Full Text Available O objetivo deste trabalho foi avaliar a atividade do acaricida etoxazol, no controle e reprodução do ácaro B. phoenicis. Para tanto, foram demarcadas com cola adesiva arenas de cinco centímetros de diâmetro em frutos de citros com alta infestação do ácaro. O ensaio foi delineado em parcelas inteiramente casualizadas, com oito tratamentos e quatro repetições. Em cada arena foram contados o número de ácaros adultos, jovens e ovos. Os tratamentos constaram dos seguintes acaricidas e doses em g i.a./100 L de água: etoxazol 110 SC (1,1; 1,65; 2,75 e 5,5; hexitiazoxi 500 PM (0,75; flufenoxuron 100 CE (3; cihexatina 500 PM (25, aplicados diretamente sobre as arenas. Os frutos foram mantidos em câmara de germinação tipo BOD. com temperatura de 25 ± 2 ºC e fotofase de 12 horas. Diariamente, foram contados o número de ácaros adultos, jovens e ovos, com auxílio de microscópio esteroscópio. Os parâmetros avaliados foram a atividade ovicida, esterilização de fêmeas e efeito sobre formas jovens. Constatou-se que o etoxazol provocou mortalidade de formas jovens do ácaro-da-leprose superior a 95%, nas doses a partir de 1,1 g i.a. /100 L de água. Ovos tratados com etoxazol, nas doses a partir de 1,65 g i.a. /100 L de água, apresentaram inviabilidade média de 60%. O etoxazol apresentou efeito esterilizante sobre fêmeas nas doses a partir de 2,75 g i.a./100 L de água, inviabilizando 95% dos ovos.

  8. Radioactivity measurements on migrating birds (Turdus philomelos) captured in the Comunidad Valenciana (Spain)

    International Nuclear Information System (INIS)

    Navarro, E.; Roldan, C.; Cervera, J.; Ferrero, J.L.

    1998-01-01

    The radionuclides 137 Cs, 134 Cs and 90 Sr have been measured in edible tissues and bones of migratory birds (song-thrushes, Turdus philomelos) from central and northern Europe and captured in the Comunidad Valenciana, Spain in the 1994 autumn-winter season. Eight years after the Chernobyl accident, extensive agricultural lands in Europe are still contaminated and this study shows that there was a transfer of radioactive isotopes to the captured migratory song-thrushes. The whole-body dose commitment to humans consuming these birds is estimated

  9. Sex determination in Turdus amaurochalinus (Passeriformes: Muscicapidae: morphometrical analysis supported by CHD gene

    Directory of Open Access Journals (Sweden)

    Katyucha Von Kossel de Andrade Silva

    2011-06-01

    Full Text Available Sex determination is important for conservation and population studies, particularly for reproduction programs of threatened species and behavioural ecology. Turdus amaurochalinus, Creamy-bellied Thrush, only exhibits sexual dimorphism during the breeding season, when males are considered to show intense yellow bills, and females and immature males show dark brown bills. The objectives of this study were: 1 to determine the sex of individuals using genetic techniques, and 2 to test the hypothesis that sex dimorphism can be detected by morphometry. This study was carried out at Parque Nacional da Restinga de Jurubatiba, a preserved area located on the North coast of Rio de Janeiro State. The birds were captured using ornithological nets, singly marked with metal rings, weighed, measured and had blood samples collected before being released. The sex of 42 T. amaurochalinus individuals was determined using the CHD gene marker. A total of 20 males and 22 females were identified from June to August, with peak capture frequency in June. Turdus amaurochalinus females and males differed significantly in morphometrical measures. The most important traits to distinguish males from females were wing length (Student t-test=4.34, df=40, p=0.0001 and weight (Student t-test=2.08,df=40, p=0.044: females were heavier and had significantly shorter wing length than males. Females and males were correctly classified in 86% and 75% of cases, respectively, using Discriminant Analysis. The molecular analysis was the most secure method for sex determination in the studied species. Rev. Biol. Trop. 59 (2: 789- 794. Epub 2011 June 01.

  10. Sex determination in Turdus amaurochalinus (Passeriformes: Muscicapidae: morphometrical analysis supported by CHD gene

    Directory of Open Access Journals (Sweden)

    Katyucha Von Kossel de Andrade Silva

    2011-06-01

    Full Text Available Sex determination is important for conservation and population studies, particularly for reproduction programs of threatened species and behavioural ecology. Turdus amaurochalinus, Creamy-bellied Thrush, only exhibits sexual dimorphism during the breeding season, when males are considered to show intense yellow bills, and females and immature males show dark brown bills. The objectives of this study were: 1 to determine the sex of individuals using genetic techniques, and 2 to test the hypothesis that sex dimorphism can be detected by morphometry. This study was carried out at Parque Nacional da Restinga de Jurubatiba, a preserved area located on the North coast of Rio de Janeiro State. The birds were captured using ornithological nets, singly marked with metal rings, weighed, measured and had blood samples collected before being released. The sex of 42 T. amaurochalinus individuals was determined using the CHD gene marker. A total of 20 males and 22 females were identified from June to August, with peak capture frequency in June. Turdus amaurochalinus females and males differed significantly in morphometrical measures. The most important traits to distinguish males from females were wing length (Student t-test=4.34, df=40, p=0.0001 and weight (Student t-test=2.08,df=40, p=0.044: females were heavier and had significantly shorter wing length than males. Females and males were correctly classified in 86% and 75% of cases, respectively, using Discriminant Analysis. The molecular analysis was the most secure method for sex determination in the studied species. Rev. Biol. Trop. 59 (2: 789- 794. Epub 2011 June 01.La determinación del sexo es importante para la conservación y los estudios poblacionales. Turdus amaurochalinus no presenta aparente dimorfismo sexual. El objetivo de este estudio fue determinar el sexo a través de una técnica genética, mediante el uso del marcador del gen CHD y se puso a prueba la hipótesis de que el dimorfismo

  11. Breeding biology of the European Blackbird Turdus merula in orange orchards

    Directory of Open Access Journals (Sweden)

    Ali Zeraoula

    2016-10-01

    Full Text Available During two successive years (2013–2014, we studied the breeding ecology of the European Blackbird Turdus merula in Guelma province, north-east of Algeria. The study was carried out in orange orchards of the region. We investigated nest placement in the orange trees and determined the factors of reproductive failure at this study area. Nests were placed at low height (mean ± SD = 1.42 ± 0.04 m and located near the trunk (mean ± SD = 0.61 ± 0.04 m. The breeding season occurred between mid-May and mid-June and the peak of egg laying took place during the first half of May. The mean clutch size was 2.96 ± 0.05, density of breeding pairs was 0.83 ± 0.30 p/ha. The breeding success reported in the present study was higher than that recorded in other studies. Predation was the leading cause of nest failure of the population under investigation. The present study shows that the orange orchards appear to be the preferred breeding area for Blackbird population.

  12. Detecção de riquétsias em carrapatos do gênero Amblyomma (Acari: Ixodidae coletados em parque urbano do município de Campinas, SP Rickettsiae detection in Amblyomma ticks (Acari: Ixodidae collected in the urban area of Campinas city, SP

    Directory of Open Access Journals (Sweden)

    Dora Amparo Estrada

    2006-02-01

    Full Text Available O Município de Campinas situa-se em região endêmica para febre maculosa brasileira do Estado de São Paulo, onde vários casos desta doença vem ocorrendo. Capivaras têm sido associadas ao ciclo dessa riquetsiose por apresentarem sorologia positiva e serem hospedeiras de carrapatos Amblyomma spp principais vetores da doença. Carrapatos foram coletados no parque urbano do Lago do Café, Campinas, SP, local associado a casos humanos suspeitos de febre maculosa brasileira, sobre a vegetação e das capivaras ali presentes, e pesquisados quanto à presença de riquétsias pela reação em cadeia da polimerase e pelo teste de hemolinfa. Adultos de Amblyomma cajennense e Amblyomma cooperi albergavam Rickettsia bellii, não patogênica, identificada pela análise das seqüências de nucleotídeos do gene gltA, porém, não foram constatadas riquétsias do Grupo da Febre Maculosa. Estes resultados associados à ausência de um isolado de riquétsias do Grupo da Febre Maculosa de capivaras indicam que seu papel, enquanto reservatório, necessita de maior investigação.The city of Campinas is located in an endemic area for brazilian spotted fever in São Paulo State, where several cases have recently occurred. Capybaras have been associated with the cycle of this disease, for they present positive serology and serve as host for ticks of the genus Amblyomma, the main vectors of brazilian spotted fever. Ticks were colleted both from Capybaras and from the vegetation in the city park Lago do Café, located in the urban area of Campinas city, SP, a site associated with suspected human cases of brazilian spotted fever. The ticks collected were examinaded for the presence of rickettsiae using polymerase chain reaction and the haemolymph test. Through analysis of the gene gltA nucleotide sequence, adults of Amblyomma cajennense and Amblyomma cooperi were found to be infected with the non pathogenic Rickettsia bellii. However, no rickettsiae of the spotted

  13. Long-term effects of chronic light pollution on seasonal functions of European blackbirds (Turdus merula).

    Science.gov (United States)

    Dominoni, Davide M; Quetting, Michael; Partecke, Jesko

    2013-01-01

    Light pollution is known to affect important biological functions of wild animals, including daily and annual cycles. However, knowledge about long-term effects of chronic exposure to artificial light at night is still very limited. Here we present data on reproductive physiology, molt and locomotor activity during two-year cycles of European blackbirds (Turdus merula) exposed to either dark nights or 0.3 lux at night. As expected, control birds kept under dark nights exhibited two regular testicular and testosterone cycles during the two-year experiment. Control urban birds developed testes faster than their control rural conspecifics. Conversely, while in the first year blackbirds exposed to light at night showed a normal but earlier gonadal cycle compared to control birds, during the second year the reproductive system did not develop at all: both testicular size and testosterone concentration were at baseline levels in all birds. In addition, molt sequence in light-treated birds was more irregular than in control birds in both years. Analysis of locomotor activity showed that birds were still synchronized to the underlying light-dark cycle. We suggest that the lack of reproductive activity and irregular molt progression were possibly the results of i) birds being stuck in a photorefractory state and/or ii) chronic stress. Our data show that chronic low intensities of light at night can dramatically affect the reproductive system. Future studies are needed in order to investigate if and how urban animals avoid such negative impact and to elucidate the physiological mechanisms behind these profound long-term effects of artificial light at night. Finally we call for collaboration between scientists and policy makers to limit the impact of light pollution on animals and ecosystems.

  14. Non-preference of the red mite Oligonychus yothersi McGregor (Acari: Tetranychidae for oviposition on leaves of Paraguay tea progenies (Ilex paraguariensis/ Não-preferência do ácaro-vermelho, Oligonychus yothersi McGregor (Acari: Tetranychidae, para oviposição em folhas de progênies de erva-mate (Ilex paraguariensis

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    José Djair Vendramim

    2007-10-01

    Full Text Available The oviposition preference of the red mite Oligonychus yothersi McGregor was evaluated under laboratory in 52 Paraguay tea progenies and one control collected in a local farm. The experiments were conducted on Paraguay tea leaf discs infested with one adult female mite/disc, incubated in a climate chamber (25±1ºC, 14h photophase for five days. Evaluations were performed daily, by counting the number of eggs laid in the period, the number of female escapes in the first 48 hours, as well as the number of eggs laid before the escaping. It was verified that discrimination by the mite occurred on two groups of progenies, in relation to the number of eggs: one group was different from the control (53.8% of the progenies and the other was identical to it (46.2% of the progenies. In the first group, 60.7% of progenies were less oviposited while a higher number of eggs/female than the control was verified in 39.3% of them. In 57.7% of progenies there was escape of some mites (10 to 40%, and in 10 of these progenies no eggs were laid. The data provide evidences that in some of the progenies evaluated there is resistance by non-preference to oviposition of the Paraguay tea red mite.A preferência para oviposição do ácaro-vermelho, Oligonychus yothersi McGregor, foi avaliada em condições de laboratório em 52 progênies de erva-mate e uma testemunha coletada em uma propriedade da região. Os experimentos foram realizados em discos foliares de erva-mate (2 cm de diâmetro, infestados com uma fêmea adulta do ácaro, e incubados a 25±1ºC e 14h de fotofase, durante cinco dias. As avaliações foram realizadas diariamente, contando-se o número de ovos depositados no período, número de fêmeas que fugiram nas primeiras 48 horas e número de ovos depositados antes da fuga. Verificou-se que houve discriminação do ácaro em dois grupos de progênies, em relação ao número de ovos, um que diferiu em relação à testemunha (53,8% de progênies e

  15. New species of Uropodina from Madagascar (Acari: Mesostigmata)

    Czech Academy of Sciences Publication Activity Database

    Kontschán, J.; Starý, Josef

    2014-01-01

    Roč. 3895, č. 4 (2014), s. 547-569 ISSN 1175-5326 Institutional support: RVO:60077344 Keywords : Acari * Mesostigmata * Uropodina * new genus * new species * Madagascar Subject RIV: EG - Zoology Impact factor: 0.906, year: 2014

  16. DOCUMENTED RECORD OF A MIGRATING EASTERN SLATY THRUSH (Turdus subalaris (TURDIDAE, PASSERIFORMES IN WESTERN MATO GROSSO STATE, BRAZIL

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    Breno Dias Vitorino

    2016-12-01

    Full Text Available The Eastern Slaty Thrush (Turdus subalaris occurs in the meridional parts of South America, from Bolivia Southward to Argentina, Paraguay and South and Southeastern Brazil. During the winter on the continent, it performs migration little known toward areas of ecotone between Amazon and Cerrado, with little information on their area of wintering in the Mato Grosso state. In this study we report on a record documenting the species for the Alto Rio Guaporé basin, Western Mato Grosso, based on a mist-netted individual. We present a record until now unpublished of the species in the region of Vila Bela da Santíssima Trindade and contribute to the knowledge of the species’ wintering range and their annual cycle. Keywords: Austral migration; wintering; birds; Vila Bela da Santíssima Trindade.

  17. Controle de Brevipalpus phoenicis (Geijskes, 1939 e Oligonychus ilicis (McGregor, 1917 (Acari: Tenuipalpidae, Tetranychidae em cafeeiro e o impacto sobre ácaros benéficos: II - Spirodiclofen e Azocyclotin Control of Brevipalpus phoenicis (Geijskes, 1939 and Oligonychus ilicis (McGregor, 1917 (Acari: Tenuipalpidae, Tetranychidae in coffee plants and the impact on beneficial mites: II - Spirodiclofen and Azocyclotin

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    Paulo Rebelles Reis

    2005-06-01

    Full Text Available O ácaro Brevipalpus phoenicis (Geijskes é importante em cafeeiro (Coffea spp. por ser o vetor do vírus da mancha-anular, doença responsável por queda de folhas e má qualidade da bebida do café, e o ácaro-vermelho Oligonychus ilicis (McGregor por reduzir a área foliar de fotossíntese. Ácaros da família Phytoseiidae, de várias espécies, são eficientes predadores associados aos ácaros-praga. Conduziu-se este trabalho com o objetivo de estudar o controle dos ácaros-praga com spirodiclofen e azocyclotin, e o impacto sobre fitoseídeos. Em laboratório foram estudados os efeitos ovicida, tópico, residual, tópico mais residual e a seletividade fisiológica aos fitoseídeos; em casa-de-vegetação foi avaliada a persistência no controle às duas espécies de ácaros-praga; e em campo foi avaliada a eficiência apenas no controle de B. phoenicis. Os bioensaios foram realizados em arenas de folhas destacadas. O efeito ovicida foi avaliado em ovos no início e final de incubação. Os efeitos residual, tópico e tópico mais residual foram avaliados pela mortalidade de larvas, ninfas e adultos aos oito dias, e a persistência até 30 dias após a aplicação. A seletividade aos fitoseídeos foi avaliada, pelo efeito na mortalidade e reprodução de fêmeas adultas, em teste residual em superfície de vidro. Spirodiclofen e azocyclotin (SC mostraram eficiente ação ovicida, principalmente para ovos de B. phoenicis no início de incubação. Para ovos de O. ilicis, somente o spirodiclofen apresentou efeito ovicida. Em geral, os efeitos tópico e residual associados melhoraram a eficiência dos produtos no controle das fases pós-embrionárias de ambas as espécies. O spirodiclofen apresentou seletividade aos ácaros predadores, já o azocyclotin foi nocivo. Em campo, ambos os acaricidas mostram-se altamente eficientes na redução de todas as fases pós-embrionárias do ácaro B. phoenicis, principalmente nas folhas.The mite Brevipalpus

  18. Plantas de ocorrência espontânea como substratos alternativos para fitoseídeos (Acari, Phytoseiidae em cultivos de seringueira Hevea brasiliensis Muell. Arg. (Euphorbiaceae Weeds as alternative substrates to phytoseiids (Acari, Phytoseiidae in rubber tree Hevea brasilienis, Muell. Arg. (Euphorbiaceae cultivation

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    Marcos Roberto Bellini

    2005-03-01

    Full Text Available O objetivo deste estudo foi determinar as espécies de plantas espontâneas em áreas de cultivo de seringueira que poderiam servir com reservatório de ácaros predadores. O trabalho foi conduzido em Olímpia, Estado de São Paulo, Brasil, em dois cultivos de seringueira. A cada três meses, cerca de 1.000 cm³ de folhas de cada uma das cinco espécies de plantas espontâneas dominantes em cada cultivo foi tomada para determinar os fitoseídeos. Como as plantas espontâneas dominantes variaram durante o estudo, um total de 20 espécies foi verificado. Somente Cecropia sp. foi dominante em todo estudo, em ambos os cultivos. Um total de 336 fitoseídeos pertencentes às seguintes espécies foi encontrado: Euseius citrifolius Denmark & Muma, 1970, E. concordis (Chant, 1959, Galendromus annectens (DeLeon, 1958, Iphiseiodes zuluagai Denmark & Muma, 1972, Neoseiulus anonymus (Chant & Baker, 1965 e N. tunus (DeLeon, 1967. E. citrifolius (189 espécimes e N. tunus (138 espécimes foram os mais abundantes. A maior abundância (231espécimes e diversidade (5 espécies foram observadas sobre Cecropia sp. Sobre esta planta foi encontrado o maior número de ácaros por amostra (29 espécimes, seguida por Piper duncum Linnaeus (22, Guarea sp. (18 e Ageratum conyzoides Linnaeus (12. E. citrifolius tem sido determinado como um dos ácaros predadores mais abundantes sobre seringueiras cultivadas na região onde este trabalho foi conduzido. Cecropia sp. parece ser uma das plantas espontâneas mais importantes consideradas como reservatório de E. citrifolius porque está continuamente presente nos cultivos. Estudos complementares poderiam indicar a viabilidade de se manejar esta planta nas áreas de cultivo de seringueira para permitir o controle biológico dos ácaros-praga desta cultura.The objective of this study was to determine weed species of rubber tree cultivation areas that could serve as reservoirs of predatory mites. The work was conducted in Ol

  19. Seletividade de acaricidas e inseticidas a ácaros predadores (Acari: Phytoseiidae encontrados em seringueira no centro-oeste do Brasil Side-effect of acaricides and insecticides to predatory mites (Acari: Phytoseiidae found in rubber-trees in mid-west Brazil

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    Noeli Juarez Ferla

    2006-04-01

    Full Text Available Euseius concordis (Chant e Neoseiulus anonymus (Chant & Baker são ácaros predadores da família Phytoseiidae comumente encontrados em seringueira (Hevea brasiliensis Muell. Arg. em Mato Grosso, região centro-oeste do Brasil. Este trabalho foi realizado para verificar o efeito de acaricidas e inseticidas-acaricidas empregados em plantações de seringueira, e outros que teriam potencial para serem empregados contra insetos e ácaros considerados pragas dessa cultura, sobre E. concordis e N. anonymus. Utilizou-se o método residual de pulverização em superfície, recomendado como padrão pelo Grupo de Trabalho "Pesticidas e Artrópodes Benéficos", da Organização Internacional de Controle Biológico e Integrado de Plantas e Animais Nocivos/Seção Regional do Paleártico Oeste. Duas concentrações de cada um dos seguintes ingredientes ativos foram utilizadas: acefato, dicofol, endosulfan, formetanate, metomil, monocrotofós, óxido de fenbutatin e propargite. Uma das concentrações utilizadas foi uma média daquelas sugeridas pelos fabricantes para o controle de ácaros e insetos fitófagos presentes em outras culturas, uma vez que nenhum dos produtos testados tem registro para o uso em seringueira e a outra correspondeu à cerca de um terço da primeira. Endosulfan a 320ppm, dicofol a 100ppm e óxido de fenbutatin a 100 e 320ppm foram inócuos a E. concordis, enquanto que endosulfan a 320ppm e dicofol a 100ppm foram inócuos a N. anonymus. Acefato, formetanate e monocrotofós, nas concentrações testadas, foram nocivos às duas espécies.Euseius concordis (Chant and Neoseiulus anonymus (Chant & Baker are predatory mites of the family Phytoseiidae commonly found on rubber trees (Hevea brasiliensis Muell. Arg. in the State of Mato Grosso, in the mid-west Brazil. This work was conducted to verify the effect of acaricides and insecticides-acaricides occasionally used in rubber tree plantations, and other products that could be used against

  20. Controle biológico do ácaro rajado com ácaros predadores fitoseídeos (Acari: Tetranychidae, Phytoseiidae em culturas de pepino e morango Biological control of the two-spotted spider mite (Acari: Tetranychidae, Phytoseiidae in cucumber and strawberry crops

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    M.A. Watanabe

    1994-04-01

    Full Text Available O ácaro rajado, Tetranychus urticae Koch, é considerado uma das principais pragas de hortaliças e várias outras culturas no Brasil, em áreas onde um considerável volume de acaricidas é anualmente empregado no seu controle. O objetivo deste trabalho foi testar a viabilidade técnica do emprego dos fitoseídeos Amblyseius idaeus (Denmark & Muma e Phytoseudus macropilis (Banks, comum ente encontrados no Brasil, no controle de T. urticae em pepino e morangueiro em Jaguaríúna,SP. Utilizou-se o delineamento experimental em blocos casualizados, com 4 repetições e 4 tratamentos (T1-T4 para o pepino e 5 tratamentos para o morangueiro (T1-T5: T1, testemunha; T2, pulverizações semanais de Malation para a exclusão de predadores nativos; T3, liberações periódicas de A.idaeus; T4, liberações periódicas de P.macropilis; T5, pulverizações semanais de avermectina para a exclusão de ácaros fitófagos e predadores nativos. Apenas A.idaeus se estabeleceu na cultura de pepino, reduzindo significativamente a população de T. urticae. Ambas espécies de predadores se estabeleceram na cultura do morango e reduziram significativamente a população de T.urticae.The two-spotted spider mite, Tetranychus urticae Koch, is considered one of the main pests of horticultural and other crops in Brazil, in areas where a considerable volume of acaricides is annually used for its control. The objective of this work was to test the technical viability of using phytoseiids Amblyseius idaeus (Denmark & Muma and Phytoseudus macropilis (Banks, commonly found in Brazil, to control T .urticae in cucumber and strawberry crops in Jaguaríúna,SP. A randomized complete block design was used, with 4 replicates and 4 treatments for cucumber (T1-T4 and 5 treatments for strawberry crops (T1-T5: T1, control; T2, weekly sprays of malathion for exclusion of native predators; T3, periodical releases of A.idaeus; T4, periodical releases of P. macropilis; T5, weekly sprays of

  1. Atividade do acaricida etoxazol sobre a mortalidade e reprodução do ácaro-da-leprose Brevipalpus phoenicis (Geijskes (Acari: Tenuipalpidae, em citros Activity of the etoxazole acaricide on the mortality and reproduction of the citrus leprosis mite Brevipalpus Phoenicis (Geijskes (Acari: Tenuipalpidae, in citrus

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    Fernando Juari Celoto

    2010-12-01

    Full Text Available O objetivo deste trabalho foi avaliar a atividade do acaricida etoxazol, no controle e reprodução do ácaro B. phoenicis. Para tanto, foram demarcadas com cola adesiva arenas de cinco centímetros de diâmetro em frutos de citros com alta infestação do ácaro. O ensaio foi delineado em parcelas inteiramente casualizadas, com oito tratamentos e quatro repetições. Em cada arena foram contados o número de ácaros adultos, jovens e ovos. Os tratamentos constaram dos seguintes acaricidas e doses em g i.a./100 L de água: etoxazol 110 SC (1,1; 1,65; 2,75 e 5,5; hexitiazoxi 500 PM (0,75; flufenoxuron 100 CE (3; cihexatina 500 PM (25, aplicados diretamente sobre as arenas. Os frutos foram mantidos em câmara de germinação tipo BOD. com temperatura de 25 ± 2 ºC e fotofase de 12 horas. Diariamente, foram contados o número de ácaros adultos, jovens e ovos, com auxílio de microscópio esteroscópio. Os parâmetros avaliados foram a atividade ovicida, esterilização de fêmeas e efeito sobre formas jovens. Constatou-se que o etoxazol provocou mortalidade de formas jovens do ácaro-da-leprose superior a 95%, nas doses a partir de 1,1 g i.a. /100 L de água. Ovos tratados com etoxazol, nas doses a partir de 1,65 g i.a. /100 L de água, apresentaram inviabilidade média de 60%. O etoxazol apresentou efeito esterilizante sobre fêmeas nas doses a partir de 2,75 g i.a./100 L de água, inviabilizando 95% dos ovos.The objective of this work was to evaluate the activity of the etoxazole acaricide, on the mortality and reproduction of the citrus leprosies mite, B. phoenicis. A five centimeter diameter arena were demarcated with adhesive glue, in citrus fruits with high infestation of the mite. The design was entirely randomized plots with eight treatments and four replications. In each arena were counted the number of adults, young and eggs of B. phoenicis. The treatments consisted the following acaricides and doses in g a.i./100 L of water: etoxazole

  2. Carrapatos do gênero amblyomma (acari: ixodidae e suas relações com os hospedeiros em área endêmica para febre maculosa no Estado de São Paulo Ticks of genus Amblyomma (Acari: Ixodidae and their relationship with hosts in endemic area for spotted fever in the state of São Paulo

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    Carlos Alberto Perez

    2008-12-01

    Full Text Available Foram avaliadas 7 espécies da mastofauna e 36 da avifauna quanto à prevalência e intensidade de infestação por carrapatos na ESALQ/USP, no Município de Piracicaba, SP. Analisaram-se 52 indivíduos da mastofauna e 158 da avifauna, parasitados por 12418 carrapatos. Os exemplares adultos (N= 7343 foram encontrados em parasitismo nas capivaras enquanto que os imaturos foram, na maioria, coletados de pequenos mamíferos e aves. Os principais hospedeiros para as formas imaturas, em ordem decrescente, foram gambás (69,1%, capivaras (24,4% e urubus (3,7%. Entre a avifauna, o urubu apresentou o maior número de carrapatos com 69,9%, seguido por indivíduos das famílias Thamnophilidae e Turdidae. Os carrapatos adultos encontrados em capivaras foram A. cajennense (80,8% e A. dubitatum (19,2%. Ambas as espécies foram também coletadas em gambás, correspondendo a 72,4% e 27,6%, respectivamente. Pela facilidade de captura e atratividade de Amblyomma spp. o gambá pode ser usado como bioindicador de infestação em locais endêmicos para febre maculosa. Considerando os índices de parasitismo e prevalência bem como de abundância de carrapatos, susceptibilidade dos hospedeiros, proliferação e susceptibilidade para infecção por R. rickettsi, capivaras e gambás são potenciais hospedeiros amplificadores desse microrganismo no Campus da ESALQ, enquanto eqüídeos, urubus e gatos atuam como hospedeiros secundários.Seven species of mammals and 36 of birds were investigated to determine the tick prevalence and intensity of infestation. The study was conducted at the Esalq/USP in Piracicaba municipality, State of São Paulo. It was collected 52 mammals and 158 birds parasitized by 12,418 ticks. Adult ticks (N= 7,343 were found on capybaras, while the immature were mainly collected on small mammals and birds. The main hosts for immatures in descending order were opossums (69.1%, capybara (24.4% and black vultures (3.7%. Among the avifauna, the black

  3. Intercropping Allium tuberosum Rottler ex Sprengel (Amaryllidaceae reduces Tetranychus urticae Koch (Acari: Tetranychidae populations in strawberry

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    Fernando Hata

    2017-12-01

    Efeito do cultivo consorciado de Allium tuberosum Rottlerex Sprengel(Amaryllidaceae em populações de Tetranychus urticae Koch (Acari: Tetranychidae em morangueiro Resumo. O ácaro-rajado, Tetranychus urticae Koch, é uma das mais importantes pragas em casas de vegetação no mundo. Foi avaliado o efeito do consórcio de cebolinha chinesa, cultivada sob as estruturas de madeira que suportam as sacolas para o cultivo de morangueiro (sistema suspenso, em duas casas de vegetação, entre novembro de 2016 e janeiro de 2017. Formas móveis e ovos de ácaros foram contabilizados em folhas de morangueiro. Para as avaliações, cinco plantas foram aleatoriamente selecionadas em cada parcela. Populações de ácaro-rajado em folhas de morangueiro foram avaliadas com lupa de bolso, com 10 x de aumento. Reduções foram observadas em três de oito avaliações de formas móveis de ácaro-rajado. Foram observadas reduções no número de ovos em uma avaliação. Tomando em consideração os dados de ácaros acumulados por dia, foi observado que o consórcio reduziu em 54% a população de ácaros. Por outro lado, o número de ovos não foi alterado.

  4. Ocorrência de Amblyomma fuscum Neumann, 1899 e Amblyomma humerale Koch, 1844 (Acari: Ixodidae em Bufo arenalis no estado de São Paulo, Brasil Occurence of Amblyomma fuscum Neumann, 1899 and Amblyomma humerale Koch, 1844 (Acari: Ixodidae in Bufo arenalis in the state of São Paulo, Brazil

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    Afonso Lodovico Sinkoc

    1997-06-01

    Full Text Available O objetivo deste trabalho é relatar a ocorrência do parasitismo monoespecífico de A. fuscum NEUMANN, 1899 e A. humerale KOCH, 1844 em sapos (Bufo arenalis no Município de Rosana, Estado de São Paulo, Brasil. Este relato caracteriza um novo hospedeiro e uma nova localização geográfica para estas duas espécies de carrapatos.The objective of this work is to describe the occurence of the monoespecific parasitism of A. fuscum NEUMANN, 1899 and A. humerale KOCH, 1844 in toads (Bufo arenalis from the County of Rosana, State of São Paulo, Brazil. This is the description of a new host and new geographic site for those two species.

  5. Controle do carrapato Boophilus microplus (Acari: Ixodidae em sistemas de produção de leite da microrregião fisiográfica fluminense do grande Rio - Rio de Janeiro Control of the cattle tick Boophilus microplus (Acari: Ixodidae in dairy farm systems of the physiographic microrregion of grande Rio, Rio de Janeiro, Brazil

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    Juracy de Castro Borba Santos Júnior

    2000-04-01

    Full Text Available O objetivo do trabalho foi analisar os métodos de controle do carrapato Boophilus microplus realizados em três fazendas representativas dos sistemas de produção de leite da Microrregião Fisiográfica Fluminense do Grande Rio, Rio de Janeiro, levando-se em consideração o manejo das fazendas, o grau de sangue Bos taurus e Bos indicus dos rebanhos, os fatores climáticos e a prevalência estacional do carrapato. Para efeito de avaliação, foi utilizada a contagem periódica de fêmeas ingurgitadas medindo entre 4,5 e 8mm, no antímero direito de 20% das vacas em lactação de cada fazenda, durante um ano. A diferença no manejo das pastagens, a composição genética dos rebanhos e as condições climáticas influenciaram a prevalência estacional de B. microplus. A maior lotação animal por hectare, o elevado "stand" vegetativo das pastagens e o maior grau de sangue B. taurus contribuíram para as maiores infestações de carrapatos nas fazendas. O controle de B. microplus realizado pelos proprietários teve importância secundária em relação as outras atitudes de manejo dos rebanhos. Ficou evidenciado o uso excessivo e ineficiente de produtos químicos para o controle de B. microplus nas fazendas. Para implantação de medidas de controle estratégico do B. Microplus, fazem-se necessários esforços para a transferência e adoção dos resultados de pesquisas disponíveis aos produtores rurais.The objective of the study was to analyse the control methods of the cattle tick, Boophilus microplus. The experiment was carried out on three farms of the dairy production systems of the Fluminense Physiographic Microregion of Grande Rio, Rio de Janeiro State, Brazil. Farm management, the Bos indicus and Bos taurus composition of herds, climatic factors and seasonal variation in tick infestation level of cattle was taken into account. Counts of engorged female ticks, measuring between 4.5 and 8.0mm, in 20% of the lactating cows of each farm

  6. DOCUMENTED RECORD OF A MIGRATING EASTERN SLATY THRUSH (Turdus subalaris) (TURDIDAE, PASSERIFORMES) IN WESTERN MATO GROSSO STATE, BRAZIL

    OpenAIRE

    Breno Dias Vitorino; Angélica Vilas Boas da Frota; Renato da Silva Nunes

    2016-01-01

    The Eastern Slaty Thrush (Turdus subalaris) occurs in the meridional parts of South America, from Bolivia Southward to Argentina, Paraguay and South and Southeastern Brazil. During the winter on the continent, it performs migration little known toward areas of ecotone between Amazon and Cerrado, with little information on their area of wintering in the Mato Grosso state. In this study we report on a record documenting the species for the Alto Rio Guaporé basin, Western Mato Grosso, based on a...

  7. Controle da infestação por Ornithonyssus sylviarum (Canestrini e Fanzago, 1877 (Acari: Macronyssidae em poedeiras comerciais utilizando extrato de Azadirachta indica Control of Ornithonyssus sylviarum (Canestrini and Fanzago, 1877 (Acari: Macronyssidae infestation in commercial laying hens by using Azadirachta indica extract

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    Nilce M. Soares

    2008-12-01

    Full Text Available O presente trabalho teve por objetivo avaliar a eficácia de um produto à base de extrato de nim, no controle da infestação por O. sylviarum em poedeiras comerciais. O experimento foi realizado observando-se a eficácia do extrato de nim a 2% após duas, três e quatro aplicações com intervalo de sete dias. Os resultados obtidos permitem concluir que o extrato de nim a 2% é efetivo no controle da infestação por O. sylviarum, sendo necessárias pelo menos três pulverizações semanais do produto para que haja o controle efetivo do parasito.This study evaluated the effectiveness of a neem extract-based product to control O. sylviarum infestations in commercial laying hens. The birds were divided in 3 groups, which received 2, 3, or 4 applications of the product at 7 day intervals. The results obtained allow the conclusion that the neem extract at 2"% is effective to control infestations by O. sylviarum, and at least 3 sprays of the product are required weekly for an effective control of the parasite.

  8. Social cues are unlikely to be the single cause for early reproduction in urban European blackbirds (Turdus merula).

    Science.gov (United States)

    Dominoni, Davide M; Van't Hof, Thomas J; Partecke, Jesko

    2015-04-01

    Despite urban ecology being an established field of research, there is still surprisingly little information about the relative contribution of specific environmental factors driving the observed changes in the behavior and physiology of city dwellers. One of the most reported effects of urbanization is the advanced phenology observed in birds. Many factors have been suggested to underline such effect, including warmer microclimate, anthropogenic food supply and light pollution. Since social stimuli are known to affect reproductive timing and breeding density is usually higher in urban populations compared to rural ones, we experimentally tested whether social interactions could advance the onset of reproduction in European blackbirds (Turdus merula). We housed male blackbirds of rural and urban origins with or without a conspecific female, and recorded their seasonal variation in gonadal size and production of luteinizing hormone (LH). Paired and unpaired males of both urban and rural origins did not significantly differ in their timing of gonadal growth. Moreover, rural and urban birds did not differ in their response to the social stimuli, rather they became reproductively active at the same time, a result that confirms previous studies that attributed the difference in reproductive timing observed in the field to phenotypic plasticity. We conclude that social stimuli do not contribute substantially to the observed early onset of reproductive physiology in urban bird species, rather other factors such as light pollution are likely to be stronger drivers of these physiological changes. Copyright © 2015 Elsevier Inc. All rights reserved.

  9. New Uropodina species and records from Malaysia (Acari: Mesostigmata)

    Czech Academy of Sciences Publication Activity Database

    Kontschán, J.; Starý, Josef

    2012-01-01

    Roč. 58, č. 2 (2012), s. 177-192 ISSN 1217-8837 Institutional research plan: CEZ:AV0Z60660521 Keywords : Acari * new records * new species * Malaysia Subject RIV: EH - Ecology, Behaviour Impact factor: 0.472, year: 2012

  10. Two new Uropodina species from Ethiopia (Acari: Mesostigmata)

    Czech Academy of Sciences Publication Activity Database

    Kontschán, J.; Starý, Josef

    2013-01-01

    Roč. 54, č. 1 (2013), s. 49-56 ISSN 1681-5556 Institutional research plan: CEZ:AV0Z60660521 Institutional support: RVO:60077344 Keywords : Acari * Uropodina * Afrotropical * Ethiopia * new species * new synonymy Subject RIV: EG - Zoology Impact factor: 0.500, year: 2013

  11. Study of Acari and Collembola Populations in Four Cultivation Systems in Dourados - MS

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    Rosilda Mara Mussury

    2002-09-01

    Full Text Available The impact four cultivation systems on the soil fauna was studied, using Oribatida and Gamasida acarids as bioindicators and collembolan. The research was carried out in experimental fields, located in EMBRAPA - CPAO in Dourados, Centerwest of Brazil from July 1997 to December 1999. The constant pasture system presented smaller impact on the soil fauna followed by agricultural cattle rotation and a direct plantation system. In the conventional plantation series, the populational density of the mesofauna organisms was low, especially collembolan families.O impacto de quatro sistemas de cultivo sobre a fauna de solo foram estudados, utilizando-se como bioindicadores os acari Oribatida e Gamasida e os Collembola. A pesquisa foi conduzida em campos experimentais, localizados na EMBRAPA - CPAO no município de Dourados, MS, no período de julho de 1997 à dezembro de 1999. O sistema de pastagem contínua apresentou menor impacto sobre a fauna de solo seguido da rotação agricultura pecuária e do sistema de plantio direto. Nas sucessões do plantio convencional, a densidade populacional dos organismos da mesofauna foi baixa, em especial as famílias de colembolos.

  12. A twelve-month field study of the West African Thrush Turdus pelios (Passeriformes: Muscicapidae: Part 2: annual cycles

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    Akinsola I Akinpelu

    2005-06-01

    Full Text Available In Africa, birds inhabiting forested regions are less seasonal in their activities than those from open areas. In order to study annual cycles in forest regions of South western Nigeria, West African Thrushes (Turdus pelios were mist-netted and banded during the last two weeks of each month. The nest is a cup-shaped structure built out of grasses, herbs, weeds, roots and earth laid out in a clockwise manner. Only the nesting tree and feeding sites were defended during the breeding period. The clutch size was 2.69 ±0.20 eggs with a mean incubation period of 14.11 ±0.26 days. The mean nestling period was 15 ±1.00 days. The nestlings were fed on a variety of plant and animal matter, of which grass seeds and insects were predominant. Moult was found to be protracted with a population moult period of 194 days and a much shorter individual moult period. Moult and breeding periods were spread out: moult period dovetailed into the breeding period. The birds were found to gain weight during the period but they attained their maximum weight in August after the moult period. The lowest weight was recorded in February, during the peak of the dry season, when food availability was lower. Rev. Biol. Trop. 53(1-2:239-247. Epub 2005 Jun 24El nido del tordo africano occidental es una estructura en forma de copa construida con pastos, hierbas, malezas, raíces y tierra, proyectado en el sentido de las manecillas del reloj. Solamente el árbol con el nido y los sitios de alimentación son defendidos durante la crianza. El tamaño de la nidada fue 2.69 ± 0.20 huevos con un periodo de incubación de 14.11 ± 0.26 días. El periodo promedio de cría fue de 15 ± 1.00 días. Los polluelos fueron alimentados con una variedad de material animal y vegetal, predominando las semillas de pasto y los insectos. La muda del plumaje alar es prolongada, con un período poblacional de muda de 194 días y un periodo individual mucho menor. La muda y crianza son tan prolongados

  13. Biological control of Eotetranychus lewisi and Tetranychus urticae (Acari: Tetranychidae) on strawberry by four phytoseiids (Acari: Phytoseiidae).

    Science.gov (United States)

    Howell, Anna D; Daugovish, Oleg

    2013-02-01

    The spider mite, Eotetranychus lewisi (McGregor) (Acari: Tetranychidae), is a new emerging pest in California commercial strawberries. The predatory mite Phytoseiulus persimilis (Athias-Henriot) (Acari: Phytoseiidae), typically used for biocontrol of Tetranychus urticae (Koch) (Acari: Tetranychidae), provided growers little to no control of E. lewisi. Four commonly used phytoseiid predatory mites: P. persimilis, Neoseiulus californicus (McGregor), N. fallacis (Garman), and Amblyseius andersoni (Chant), were used in lab studies to investigate which is best at managing E. lewisi populations. We als o investigated t he interactions between T. urticae and E. lewisi and in relation to phytoseiid efficiency given the potential for indirect effects of biocontrol. When E. lewisi and T. urticae are present on the same leaf, T. urticae populations increase and begin displacing E. lewisi. P. persimilis did not feed on E. lewisi, but the other three predatory mites consumed the spider mites and lowered their populations. When both E. lewisi and T. urticae are present on the same leaf, N. fallacis and A. andersoni fed on both types of mites equally and were capable of decreasing both populations. N. californicus fed on E. lewisi first and decreased its population, but allowed T. urticae populations to increase. P. persimilis may be insufficient at controlling E. lewisi and its use may instead enhance E. lewisi populations.

  14. Breeding biology of an endemic Bornean turdid, the Fruithunter (Chlamydochaera jefferyi), and life history comparisons with Turdus species of the world

    Science.gov (United States)

    Mitchell, Adam E.; Tuh, Fred; Martin, Thomas E.

    2017-01-01

    We present the first description of the breeding biology for the Fruithunter (Chlamydochaera jefferyi), a member of the cosmopolitan family Turdidae, and a montane endemic to the tropical Asian island of Borneo. We also compile breeding biology traits from the literature to make comparisons between the Fruithunter and the thrush genus Turdus. Our comparisons indicate that Fruithunters exhibit a slower life history strategy than both tropical and north temperate Turdus. We located and monitored 42 nests in 7 years in Kinabalu Park, Sabah, Malaysia. The mean clutch size was 1.89 ± 0.08 eggs, and the modal clutch size was 2 eggs. Mean fresh egg mass was 6.15 ± 0.13 g, representing 9.5% of adult female body mass. Average lengths of incubation and nestling periods were 14.56 ± 0.24 and 17.83 ± 0.31 days respectively. Only the female incubated and brooded the eggs and nestlings, but both the male and female fed nestlings. Female attentiveness during incubation was high throughout, reaching an asymptote around 85% with average on-bouts of 39.0 ± 2.5 mins. The daily nest survival probability was 0.951 ± 0.025, and the daily predation rate was 0.045 ± 0.024. Female feeding rate increased as brooding effort decreased, suggesting that female feeding rate may be constrained by the need to provide heat while nestlings are unable to thermoregulate. This contrasts with the feeding behavior of males, which showed much less of an increase across the nestling period. Furthermore, we describe a new vocalization which expands the vocal repertoire for Fruithunters, and we provide a brief audio clip and spectrogram.

  15. New records of water mites (Acari: Hydrachnidia, Halacaroidea) from Patagonia (Chile)

    NARCIS (Netherlands)

    Pešić, V.; Smit, H.; Datry, T.

    2010-01-01

    New records of water mite species (Acari: Hydrachnidia, Halacaroidea) from Patagonia (Southern Chile) are reported. Four species, Anisitsiellides australis Smit, 2002, Peregrinacarus falklandensis Bartsch, 2001, Lobohalacarus weberi (Romijn & Viets, 1924) and Soldanellonyx monardi Walter, 1919 are

  16. Three new .i.Trachyuropoda./i. (Acari: Uropodina: Trachyuropodidae) species from the Neotropical region

    Czech Academy of Sciences Publication Activity Database

    Kontschán, J.; Starý, Josef

    2013-01-01

    Roč. 37, č. 1 (2013), s. 7-14 ISSN 1300-0179 Institutional support: RVO:60077344 Keywords : Acari * Uropodina * Trachyuropoda * Galápagos Islands Subject RIV: EG - Zoology Impact factor: 0.585, year: 2013

  17. First report of Aculops lycopersici (Tryon, 1917 (Acari: Eriophyidae on Pepino in Turkey

    Directory of Open Access Journals (Sweden)

    Rana Akyazi

    2012-12-01

    Full Text Available The tomato russet mite, Aculops lycopersici (Tryon, 1917 (Acari: Eriophyidae is reported for the first time on Pepino (Solanum muricatum Aiton in Ordu and Samsun provinces in Turkey.

  18. A new genus and species Mangalaus krishianusandhanus (Acari: Eriophyidae) from India

    Science.gov (United States)

    Mangalaus ikrishianusandhanus n. gen., n. sp., (Acari: Prostigmata: Eriophyoidea), collected from erineum on the underside of leaves of Cordia dichotoma (Boraginaceae) is described and illustrated from specimens collected at the Indian Agricultural Research Institute (IARI) in New Delhi, India....

  19. Biological parameters of larvae, nymphs, and engorged females of Amblyomma cajennense (Fabricius, 1787 (Acari: Ixodidae obtained from artificial and successive infestations on Oryctolagus cuniculus (Linnaeus, 1758 (Lagomorpha: Ochotonidae Parâmetros biológicos de larvas, ninfas e fêmeas ingurgitadas de Amblyomma cajennense (Fabricius, 1787 (Acari:Ixodidae obtidas de infestações artificiais e sucessivas em Oryctolagus cuniculus (Lagomorpha:Ochotonidae

    Directory of Open Access Journals (Sweden)

    C.M.V. Freitas

    2009-10-01

    Full Text Available The development of acquired resistance to Amblyomma cajennense ticks was evaluated. A total of 18 rabbits were uniformly distributed into three groups named GL, GN, and GA that were submitted to three consecutive infestations with, respectively, larvae, nymphs, and adults of A. cajennense. After the infestations, the parasitic and reproductive parameters of recovered instars were evaluated. A significant reduction of recovery rates of inoculated ticks was observed only after the third infestation of animals in groups GL and GN (PAvaliou-se o desenvolvimento de resistência adquirida frente ao parasitismo por Amblyomma cajennense. Para tanto, 18 coelhos foram uniformemente distribuídos em três grupos denominados GL, GN e GA e submetidos a três infestações consecutivas por, respectivamente, larvas, ninfas ou adultos de A. cajennense. Após a infestação, estudaram-se os parâmetros parasitários e reprodutivos dos exemplares recuperados. Apenas a partir da terceira infestação dos animais dos grupos GL e GN, pôde-se observar uma queda significativa na taxa de recuperação dos ixodídeos inoculados (P<0,01. O dia modal de queda das larvas e ninfas recuperadas aumentou com o decorrer das infestações. As ninfas ingurgitadas recuperadas apresentaram uma redução significativa (P<0,01 no peso médio corporal entre a primeira e terceira infestação. Observou-se uma queda significativa na taxa média de recuperação das fêmeas ingurgitadas somente na terceira infestação (P<0,01. Todavia, a partir da segunda infestação observou-se nas teleóginas recuperadas, uma redução significativa no peso corporal, peso da postura e eclodibilidade das larvas (P<0,05. Os dados sugerem a ocorrência de resistência em coelhos à infestação por A. cajennense que foi mais evidente contra o estádio adulto.

  20. Estudio de la bioacústica del zorzal andino (Turdus chiguanco con la aplicación del software Audacity, v. 2.0

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    Aldo Hugo Miguel Orellana

    2014-12-01

    Full Text Available Objetivos: Determinar las características bioacústicas del Turdus chiguanco; entre estas, la amplitud, la frecuencia y la duración en las distintas voces. Métodos: Investigación descriptiva en la cual se recolectaron datos bioacústicos durante los años 2011-2012, luego fueron procesados con el software Audacity versión 2.0. Resultados: Se identificaron cuatro tipos de voces: Voz de huida, voz estacionaria, voz de contacto y voz de canto. En la voz de huida, se determinaron valores promedio: amplitud máxima 52,82 dB; amplitud media 0,05 dB; amplitud mínima -13,91 dB; frecuencia máxima 6,8 kHz; frecuencia media 0,63 kHz; frecuencia mínima 0,27 kHz; la duración 1,05 segundos. En la voz estacionaria: amplitud máxima 31,22 dB; amplitud media -0,19 dB; amplitud mínima -16,45 dB; frecuencia máxima 4,31 kHz; frecuencia media 1,63 kHz; frecuencia mínima 0,52 kHz; duración de 0,29 segundos. En la voz de contacto: amplitud máxima 55,22 dB; amplitud media 0,8 dB; amplitud mínima -16,33 dB; frecuencia máxima 2,87 kHz; frecuencia media 0,41 kHz; frecuencia mínima 0,2 kHz; duración 1,28 segundos. Y en la voz de canto: amplitud máxima 50,22 dB; amplitud media 0,08 dB; amplitud mínima -7,38 dB; frecuencia máxima 3,85 kHz; frecuencia media 0,71 kHz; frecuencia mínima 0,33 kHz; duración 1,34 segundos. Conclusiones: El Turdus chiguanco emite cuatro tipos de voces: de huida, estacionaria, de contacto y de canto. Los valores de las variables bioacústicas: amplitud, frecuencia y duración, varían entre los cuatro tipos de voces.

  1. Plasma cholinesterase inhibition in the clay-colored robin (Turdus grayi) exposed to diazinon in maradol papaya crops in Yucatan, Mexico

    Science.gov (United States)

    Cobos, V.M.; Mora, M.A.; Escalona, G.

    2006-01-01

    The use of organophosphorous pesticides in agriculture can result in intoxication of birds foraging in sprayed crops. Effects on birds resulting from pesticide intoxication are varied and include behavioral and reproductive effects, including death. One widely used insecticide in Maradol papaya crops is diazinon which has been associated with various incidents of intoxication and death of wild birds. The objective of this study was to evaluate the impact of diazinon application to papaya crops on plasma cholinesterase activity of the clay-colored robin (Turdus grayi). We captured clay-colored robins foraging in a papaya crop the following day after the field had been sprayed with diazinon at a dose of 1.5 kg/ha during March and May, respectively. We took a blood sample from the brachialis vein of the birds captured and measured plasma enzymatic activity. The plasma samples from birds used as controls were taken during the same time period and were analyzed in a similar way. Enzymatic activity of males was greater than that of females (53,52%) and mean cholinesterase inhibition was 49.43%. Cholinesterase inhibition was greater during May than in March probably due to more continuous exposure and ingestion of the insecticide through food and possible absorption through the skin. This degree of enzymatic inhibition is possibly affecting the behavior of the clay-colored robin and could result in death in severe cases.

  2. Ticks (Acari: Ixodidae as ectoparasites of Brazilian wild birds and their association with rickettsial diseases

    Directory of Open Access Journals (Sweden)

    Maria Ogrzewalska

    2016-04-01

    Full Text Available Os carrapatos (Acari: Ixodoidea são ectoparasitas obrigatórias de uma variedade de hospedeiros vertebrados e têm um papel importante na ecologia e transmissão de diversos patógenos causadores de doenças em humanos e animais no mundo todo. No Brasil existem 68 espécies de carrapatos e pelo menos 23 espécies são encontradas parasitando aves silvestres. Esse número tem crescido com o advento de novos estudos ressaltando o papel das aves nos ciclos de vida desses artrópodes. Na América do Sul alguns desses carrapatos estão envolvidos na epidemiologia de doenças graves para o ser humano, como a febre maculosa, causada por bactérias do gênero Rickettsia (Rickettsiales: Rickettsiaceae. O alvo desse artigo é apresentar o estado atual de conhecimento sobre a fauna de carrapatos encontrados em aves no Brasil e as associações estabelecidas com as riquetsioses. A literatura disponível sobre carrapatos em aves e ocorrência de riquétsias foi revisada e pôde ser concluído que aves têm um papel importante nos ciclos de vida de várias espécies de carrapatos, sendo especialmente importantes para os estágios imaturos (larvas e ninfas. A maior parte do conhecimento sabrecai na fauna de carrapatos de aves dos biomas Mata Atlântica e Cerrado no sudeste e centro-oeste do Brasil. Já o conhecimento sobre o parasitismo por carrapatos em aves dos outros biomas: Amazônia, Caatinga, Pantanal e Pampas é muito limitado. Além disso, não há estudos sobre o papel de aves como disseminadores de carrapatos entre áreas e também o papel de aves no ciclo de Rickettsia não está totalmente esclarecido.

  3. Seletividade de produtos fitossanitários sobre o ácaro predador Agistemus brasiliensis Matioli, Ueckermann & Oliveira (Acari: Stigmaeidae Selectivity ofthe pesticides tothe predaceous mite Agistemus brasiliensis Matioli,, Ueckermann & Oliveira (Acari: Stigmaeidae

    Directory of Open Access Journals (Sweden)

    Marcos Zatti da Silva

    2009-06-01

    Full Text Available Os ácaros predadores das famílias Phytoseiidae e Stigmaeidae constituem-se nos principais inimigos naturais de Brevipalpus phoenicis (Geijskes em citros. Este ácaro-praga causa sérios prejuízos na produção, devido à transmissão do vírus da leprose dos citros (CiLV. Apesar do grande volume de informações sobre a sensibilidade de ácaros Phytoseiidae a agrotóxicos, praticamente não existem informações sobre o efeito desses compostos em ácaros Stigmaeidae no Brasil. Sendo assim, o trabalho teve por objetivo avaliar o efeito dos principais agrotóxicos utilizados em citros sobre o ácaro predador Agistemus brasiliensis Matioli, Ueckermann & Oliveira (Acari: Stigmaeidae, em condições de laboratório. Arenas de folhas de citros da variedade Pera, contendo 25 fêmeas adultas de A. brasiliensis, foram pulverizadas em torre de Potter. Avaliaram-se as mortalidades dos ácaros 72 horas após a aplicação. O efeito dos produtos na reprodução do acarino e a viabilidade dos ovos também foram avaliados. Quanto à seletividade, conforme proposta da "Organização Internacional para o Controle Biológico" (IOBC, os produtos foram classificados como: classe 1 - inócuo (E99%, calda sulfocálcica, cyhexatin, flufenoxuron, hexythiazox, óxido de fenbutatin, propargite, pyridaben e spirodiclofen. Estudos conduzidos em condições de campo ainda são necessários para se compreender melhor o efeito desses agrotóxicos sobre o ácaro predador.The predaceous mites of the families Phytoseiidae and Stigmaeidae are the most important natural enemies of Brevipalpus phoenicis (Geijskes on citrus. This mite causes serious damages to the yield due to the transmission of Citrus leprosis virus (CiLV. Despite the considerable amount of information on susceptibility of phytoseiids to pesticides, the effect of these compounds is not very known for stigmaeid mites in Brazil. This work was carried out to evaluate the effect of the main pesticides used in

  4. Urbanization breaks up host-parasite interactions: a case study on parasite community ecology of rufous-bellied thrushes (Turdus rufiventris) along a rural-urban gradient.

    Science.gov (United States)

    Calegaro-Marques, Cláudia; Amato, Suzana B

    2014-01-01

    Urbanization drastically alters natural ecosystems and the structure of their plant and animal communities. Whereas some species cope successfully with these environmental changes, others may go extinct. In the case of parasite communities, the expansion of urban areas has a critical effect by changing the availability of suitable substrates for the eggs or free-larval stages of those species with direct life cycles or for the range of hosts of those species with complex cycles. In this study we investigated the influence of the degree of urbanization and environmental heterogeneity on helminth richness, abundance and community structure of rufous-bellied thrushes (Turdus rufiventris) along a rural-urban gradient in the metropolitan region of Porto Alegre, State of Rio Grande do Sul, Brazil. This common native bird species of southern Brazil hosts 15 endoparasite species at the study region. A total of 144 thrushes were collected with mist nets at 11 sites. The degree of urbanization and environmental heterogeneity were estimated by quantifying five landscape elements: buildings, woodlands, fields, bare lands, and water. Landscape analyses were performed at two spatial scales (10 and 100 ha) taking into account home range size and the potential dispersal distance of thrushes and their prey (intermediate hosts). Mean parasite richness showed an inverse relationship with the degree of urbanization, but a positive relationship with environmental heterogeneity. Changes in the structure of component communities along the rural-urban gradient resulted from responses to the availability of particular landscape elements that are compatible with the parasites' life cycles. We found that the replacement of natural environments with buildings breaks up host-parasite interactions, whereas a higher environmental (substrate) diversity allows the survival of a wider range of intermediate hosts and vectors and their associated parasites.

  5. Influence of landscape composition and diversity on contaminant flux in terrestrial food webs: a case study of trace metal transfer to European blackbirds Turdus merula.

    Science.gov (United States)

    Fritsch, Clémentine; Coeurdassier, Michaël; Faivre, Bruno; Baurand, Pierre-Emmanuel; Giraudoux, Patrick; van den Brink, Nico W; Scheifler, Renaud

    2012-08-15

    Although understanding the influence of the spatial arrangement of habitats and interacting communities on the processes of pollutant flux and impacts is critical for exposure and risk assessment, to date few studies have been devoted to this emergent topic. We tested the hypothesis that landscape composition and diversity affect the transfer of trace metals to vertebrates. Bioaccumulation of Cd and Pb in blood and feathers of European blackbirds Turdus merula (n=138) was studied over a smelter-impacted area (Northern France). Landscape composition (type and occurrence of the different habitats) and diversity (number of different habitat types and the proportional area distribution among habitat types) were computed around bird capture locations. Diet composition and contamination were assessed. No sex-related differences were detected, while age-related patterns were found: yearlings showed a sharper increase of tissue residues along the pollution gradient than older birds. Factors determining bird exposure acted at nested spatial scale. On a broad scale, environmental contamination mainly influenced metal levels in blackbirds, tissue residues increasing with soil contamination. At a finer grain, landscape composition and soil properties (pH, organic matter, clay) influenced metal transfer, while no influence of landscape diversity was detected. Landscape composition better explained metal transfer than soil properties did. Diet composition varied according to landscape composition, but diet diversity was not influenced by landscape diversity. Surprisingly, metal accumulation in some insect taxa was as high as in earthworms (known as hyper-accumulators). Results strongly suggested that variations in diet composition were the drivers through which landscape composition influenced metal transfer to blackbirds. This study shows that landscape features can affect pollutant transfer in food webs, partly through ecological processes related to spatial and foraging

  6. Impact of sulfur on density of Tetranychus pacificus (Acari: Tetranychidae) and Galendromus occidentalis (Acari: Phytoseiidae) in a central California vineyard.

    Science.gov (United States)

    Costello, Michael J

    2007-01-01

    Sulfur is the oldest and most widely used fungicide in the vineyards of California, where it is used for control of powdery mildew (Uncinula necator [Schw.] Burr). For decades, sulfur use has been associated with outbreaks of Tetranychus pacificus McGregor (Acari: Tetranychidae) on cultivated grapes in the San Joaquin Valley. I undertook large-scale field studies to test this association, to evaluate the impact of sulfur on Galendromus occidentalis (Nesbit) (Acari: Phytoseiidae), a major predator of T. pacificus, and to determine if timing of sulfur applications with respect to grape bloom has an impact on T. pacificus density. The studies took place in a 32 ha vineyard in Fresno County, and all fungicide applications were made with commercial-scale equipment. In 1998 a 'high sulfur' treatment, a combination of wettable sulfur and sulfur dust, was compared to 'low sulfur,' in which demethylation inhibitor (DMI) fungicides partially substituted for sulfur. In 1999 treatments were 'sulfur,' 'DMI,' 'sulfur pre-bloom' (here sulfur was applied prior to grape bloom, in late May, and then DMIs were applied until mid-season) and 'sulfur post-bloom' (the reverse of 'sulfur pre-bloom'). In each year, the T. pacificus population increase came after the end of fungicide applications, and results clearly show a relationship between sulfur use and T. pacificus density. In 1998, mean T. pacificus density was 2.7 times higher and mean G. occidentalis density 2.5 times higher in 'high sulfur' compared to 'low sulfur.' In 1999, the highest T. pacificus counts were in the 'sulfur' and 'sulfur pre-bloom' treatments, 4.8 times higher than 'sulfur post-bloom' and 2 times higher than 'DMIs.' Density of G. occidentalis was 2.3 times as high in 'sulfur' or 'sulfur pre-bloom' than 'DMIs.' The predator/prey ratio was not significantly different among treatments in 1998, but in 1999 it was highest in the 'sulfur pre-bloom' treatment. In 1999, density of Homeopronematus anconai (Baker) (Acari

  7. Mites (acari) infesting commensal rats in Suez Canal zone, Egypt.

    Science.gov (United States)

    el Kady, G A; Shoukry, A; Ragheb, D A; el Said, A M; Habib, K S; Morsy, T A

    1995-08-01

    Mites are arthropods distinguished from ticks by usually being microscopical in size and have a hypostome unarmed with tooth-like anchoring processes. They are group in a number of suborders, each with super-families and families including many genera of medical and economic importance. In this paper, commensal rodents (Rattus norvegicus, R. r. alexandrinus and R. r. frugivorous) were surveyed in the Suez Canal Zone for their acari ectoparasites. Four species of mites were recovered. In a descending order of mite indices, they were Eulaelaps stabularis (4.83 on 6 rats), Laelaps nuttalli (3.11 on 27 rats), Ornithonyssus bacoti (1.66 on 9 rats) and Dermanyssus gallinae (0.66 on 24 rats). The overall mite indices in the three governorates were 3.66 in Suez, 2.82 in Ismailia and zero in Port Said. The medical and economic importance of the mites were discussed.

  8. Further studies on South African plants: Acaricidal activity of organic plant extracts against Rhipicephalus (Boophilus) microplus (Acari: Ixodidae)

    CSIR Research Space (South Africa)

    Wellington, Kevin W

    2017-01-01

    Full Text Available -1 Veterinary Parasitology, vol. 234: 10-12 Further studies on South African plants: Acaricidal activity of organic plant extracts against Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) Wellington, KW Leboho, T Sakong, BM Adenubi, OT Eloff, JN...

  9. New records of Acari from the sub-Antarctic Prince Edward Islands

    NARCIS (Netherlands)

    Marshall, D.J.; Gremmen, N.J.M.; Coetzee, L.; Oconnor, B.M.; Pugh, P.J.A.; Theron, P.D.; Ueckermann, E.A.

    1999-01-01

    Sixty species of Acari are recorded from the sub-Antarctic Marion and Prince Edward Islands (the Prince Edward archipelago). Twenty of the 45 species collected on recent expeditions are new and currently undescribed. Other new taxa include a family of Mesostigmata, four new genera, and the first

  10. Five New Records of Raphignathoid Mites (Acari: Raphignathoidea) from Poland/ Pięć Nowych Gatunków Roztoczy Z Nadrodziny Raphignathoidea (Acari) Stwierdzonych W Faunie Polski

    OpenAIRE

    Doðan Salih; Sevsay Sevgi; Mąkol Joanna; Zeytun Erhan; Buğa Evren

    2014-01-01

    Pięć nowych gatunków roztoczy (Acari: Raphignathoidea) zostało odnoto- wanych jako nowe dla fauny Polski: trzy z rodziny Stigmaeidae, Eustigmaeus rhodomela (Koch), Mediolata obtecta Dónel et Doóan, Stigmaeus glabrisetus Summers, jeden z rodziny Cryptognathidae, Favognathus cucurbita (Berlese), i jeden z rodziny Barbutiidae, Barbuda anguineus (Berlese). Ostatni z wymienio- nych jest jednocześnie pierwszym stwierdzeniem przedstawiciela rodziny Barbutiidae w Polsce.

  11. Five New Records of Raphignathoid Mites (Acari: Raphignathoidea from Poland/ Pięć Nowych Gatunków Roztoczy Z Nadrodziny Raphignathoidea (Acari Stwierdzonych W Faunie Polski

    Directory of Open Access Journals (Sweden)

    Doðan Salih

    2014-12-01

    Full Text Available Pięć nowych gatunków roztoczy (Acari: Raphignathoidea zostało odnoto- wanych jako nowe dla fauny Polski: trzy z rodziny Stigmaeidae, Eustigmaeus rhodomela (Koch, Mediolata obtecta Dónel et Doóan, Stigmaeus glabrisetus Summers, jeden z rodziny Cryptognathidae, Favognathus cucurbita (Berlese, i jeden z rodziny Barbutiidae, Barbuda anguineus (Berlese. Ostatni z wymienio- nych jest jednocześnie pierwszym stwierdzeniem przedstawiciela rodziny Barbutiidae w Polsce.

  12. Oviposition behaviour of the soil mite Pergamasus brevicornis (Acari: Parasitidae).

    Science.gov (United States)

    Marquardt, Tomasz; Faleńczyk-Koziróg, Katarzyna; Kaczmarek, Sławomir

    2013-07-01

    We observed the oviposition behaviour of the soil mite Pergamasus brevicornis Berlese (Acari: Parasitidae) using continuous video-monitoring. Oviposition consisted of six sequential phases. The first phase (I) involved inspection of the substrate. In the second phase (II) there were rhythmic movements of the first pair of legs and slight reciprocating movements of the body. The third (III) was a resting phase. In the fourth phase (IV) the gnathosoma was lowered and the body was raised. In the next phase (V) there were two sub-phases. During the first (Va), the female held the egg below the gnathosoma. In the second sub-phase (Vb), the gnathosoma moved up holding the egg, which was then placed on the substrate. The last phase (VI) involved intense 'cleaning' movements of the chelicerae and palps. During Va a protective external eggshell structure is gradually formed, involving a phase where the egg shell is sticky. After moving the egg to the substrate, the female freed her palps and chelicerae from the sticky egg shell and cleaned her gnathosomal appendages. Phases II-V took on average 207 ± 69 s.

  13. Catalogue of ptyctimous mites (Acari, Oribatida) of the world.

    Science.gov (United States)

    NiedbaŁa, Wojciech; Liu, Dong

    2018-03-11

    As important representatives of Oribatida (Acari), ptyctimous mites comprise more than 1400 described species in 40 genera and subgenera, with nearly cosmopolitan distribution except for the Arctic and Antarctic Regions. They are capable of folding the aspidosoma under the opisthosoma to protect their appendages, and are primarily soil and litter inhabitants, feeding on fungi and decaying plant remains with various levels of specificity. Our purpose was to provide a detailed catalogue of all known ptyctimous mite species in the world with information of distribution, taxonomic issues and some remarks. Data of known juvenile  instars of ptyctimous mites which were not included in Norton Ermilov (2014) were added. We hope that our catalogue with bibliography will be helpful in taxonomic and ecological studies.        The catalogue presents taxonomic information and geographic distribution of 1431 known species of the world belonging to 42 genera and eight families (not including data of genus and species inquirenda, nomina nuda and species without author name). Among them, 261 species are listed as synonyms, 43 species inquirenda, nine homonyms, 17 new synonyms, one new subgenus Mahuntritia subgenus nov. and three new names are included in the catalogue.

  14. Can Euseius alatus DeLeon (Acari: Phytoseiidae) prey on Aceria guerreronis Keifer (Acari: Eriophyidae) in coconut palm?; Pode Euseius alatus DeLeon (Acari: Phytoseiidae) predar Aceria guerreronis Keifer (Acari: Eriophyidae) em coqueiro?

    Energy Technology Data Exchange (ETDEWEB)

    Melo, Jose W. da S.; Domingos, Cleiton A.; Gondim Junior, Manoel G.C. [Universidade Federal Rural de Pernambuco (UFRPE), Recife, PE (Brazil). Dept. de Agronomia. Area de Fitossanidade]. E-mail: mguedes@depa.ufrpe.br; Moraes, Gilberto J. de [Universidade de Sao Paulo (USP), Piracicaba, SP (Brazil). Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Dept. de Entomologia, Fitopatologia e Zoologia Agricola]. E-mail: gjmoraes@carpa.ciagri.usp.br

    2009-01-15

    Mites of the genus Euseius are generally considered specialist as pollen feeders. Euseius alatus DeLeon is one of the six species of phytoseiid mites most commonly found on coconut plants in northeast Brazil associated with Aceria guerreronis Keifer. Although the morphology of E. alatus does not favor the exploitation of the meristematic area of the fruit inhabited by A. guerreronis, the predator may have some role in the control of this eriophyid during the dispersion process. The objective of this work was to evaluate the development and reproduction of E. alatus on the following diets: A. guerreronis, Ricinus communis pollen (Euphorbiaceae), and Tetranychus urticae Koch (Tetranychidae) + R. communis pollen + honey solution 10%. Euseius alatus developed slightly faster and had slightly higher oviposition rate when feeding on the diet composed of T. urticae + pollen + honey. However, life table parameters were very similar on all diets, suggesting that E. alatus may contribute in reducing the population of A. guerreronis in the field. (author)

  15. A large parasitengonid mite (Acari, Erythraeoidea from the Early Cretaceous Crato Formation of Brazil

    Directory of Open Access Journals (Sweden)

    J. A. Dunlop

    2007-08-01

    Full Text Available A new large, fossil mite (Arachnida: Acari, Pararainbowia martilli n. gen. n. sp., is described from the Early Cretaceous (Aptian Crato Formation from Ceará State, Brazil. It is assigned to the Cohort Parasitengona and the superfamily Erythraeoidea, some extant members of which can reach up to seven millimetres in body length. Given that doubts have been raised about the identity of putative Crato feather mite eggs, this new fossil represents the first unequivocal record of Acari from the Crato Formation, the first non-amber record of an erythraeoid mite and the oldest named example of this superfamily. Fossil erythraeoids from Mesozoic and Tertiary ambers are briefly reviewed – including a widely overlooked Late Cretaceous species – with comments on Mesozoic mites in general. Thirteen Baltic amber erythraeoids have been formally described, but much unstudied material from various amber sources remains. Ein neues großes Milbenfossil (Arachnida: Acari, Pararainbowia martilli n. gen. n. sp., wird aus der Crato Formation (Unterkreide, Aptium des Ceará Gebietes in Brasilien beschrieben. Es wird der Kohorte Parasitengona und der Überfamilie Erythraeoidea zugeordnet; die modernen Vertreter erreichen eine Körperlänge bis zu sieben mm. Weil die Identität von Federmilbeneiern aus der Crato Formation in Frage gestellt wurde, ist dieser Neufund der erste klare Hinweis von Acari aus der Crato Formation. Es ist die erste erythraeoide Milbe, die nicht aus dem Bernstein stammt sowie das älteste genannte Beispiel dieser Überfamilie. Fossile erythraeoide Milben aus dem Bernstein des Mesozoikum und des Tertiärs werden kurz zusammengefasst – u. a. eine weitgehend übersehene Art aus der Oberkreide – mit allgemeinen Anmerkungen zu den mesozoischen Milben. Dreizehn erythraeoide Milbenarten sind aus dem baltischen Bernstein genannt und beschrieben worden, aber weiteres unbearbeitetes Material von verschiedenen Bernstein-Fundpunkten liegt noch vor

  16. Acaricidal and repellent activities of essential oil of Eucalyptus globulus against Dermanyssus gallinae (Acari: Mesostigmata)

    OpenAIRE

    Dehghani-Samani Amir; Madreseh-Ghahfarokhi Samin; Dehghani-Samani Azam; Pirali-Kheirabadi Khodadad

    2015-01-01

    Introduction: By considering an increase in drug resistance against red mites, finding the nonchemical herbal acaricide against Dermanyssus gallinae (De Geer) (Acari: Mesostigmata) is necessary to kill them and to reduce the chemical resistance against chemical acaricides in this specie. Dermanyssus gallinae is a potential vector of the causal agent of several viral diseases such as Equine encephalitis and St. Louis encephalitis. It can be a vector of bacteria such as Salmonella spp., Mycobac...

  17. Ectoparasitos de roedores da região urbana de Belo Horizonte, MG: III. Indices pulicidianos, anoplurianos e acarianos em Rattus Norvegicus norvegicus Ectoparasites in rodents of the urban region of Belo Horizonte, MG: III. Fleas, anoplura and acari indices in Rattus norvegicus norvegicus

    Directory of Open Access Journals (Sweden)

    Pedro Marcos Linardi

    1985-09-01

    Full Text Available Indices pulicidianos, anoplurianos e acarianos, globais e específicos foram determinados para os ectoparasitos de Rattus norvegicus norvegicus capturados em zona urbana de Belo Horizonte, Minas Gerais, Brasil, no período de junho de 1980 a setembro de 1982. Tendo-se em vista os valores limites ou críticos atribuídos aos índices pulicidianos, sobretudo ao índice "cheopis" e propostos por diversos autores como medida complementar de vigilância epidemiológica para peste bubônica, a comunidade de Belo Horizonte poderia ter estado exposta a esta infecção, uma vez que os índices globais anuais de 0,3 a 2,4 e a pulga prevalente foi Xenopsylla cheopis (99,2%, com os maiores índices coincidindo com o final da estação seca-fria. Em duas ocasiões, a comunidade poderia ter permanecido altamente exposta à infecção, já que os índices-limites tolerados foram suplantados: 8,8 (outubro 1980 e 6,2 (setembro 1982. Sugere-se que medidas profiláticas como anti-ratização e desinsetização sejam eficazmente aplicadas ao final da estação seca-fria, ou anteriormente à chegada das chuvas, sendo sucedidas pela desratização. Informações sobre índices anoplurianos e acarianos são importantes para que se possa, no exclusivas de roedoresThe total and specific indices of fleas, lice and mites were determined for ectoparasites on Rattus norvegicus norvegicus capture in urban areas of Belo Horizonte, Minas state, Brazil, from June 1980 to September 1982. In view of the limiting or critical values attributed to flea indices above all the [quot ]cheopis[quot ] index, proposed by several authors as a complementary measure for bubonic plague surveillance, the community of Belo Horizonte would have been exposed to this infection. The annual total indices ranged from 0.3 to 2.4 and the prevalent flea was Xenopsylla cheopis (99.2%, with the highest indices coinciding with the late dry-cool season. On two occasions, in this period, the community would

  18. Marine water mites (Acari: Hydrachnidia: Pontarachnidae) from Taiwan, Korea and India, with the first description of the male of Pontarachna australis Smit, 2003

    Digital Repository Service at National Institute of Oceanography (India)

    Pesic, V.; Chatterjee, T.; Chan, B.K.K.; Ingole, B.S.

    he hitherto unknown male of the marine water mite Pontarachna australis Smit, 2003 (Acari: Hydrachnidia: Pontarachnidae) is described and recorded from Taiwan for the first time. Another marine water mite, Litarachna denhami (Lohmann, 1909...

  19. The predatory mite Neoseiulus womersleyi (Acari: Phytoseiidae) follows extracts of trails left by the two-spotted spider mite Tetranychus urticae (Acari: Tetranychidae).

    Science.gov (United States)

    Shinmen, Tsubasa; Yano, Shuichi; Osakabe, Mh

    2010-10-01

    As it walks, the two-spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae) spins a trail of silk threads, that is followed by the predatory mite, Neoseiulus womersleyi Schicha (Acari: Phytoseiidae). Starved adult female N. womersleyi followed T. urticae trails laid down by five T. urticae females but did not follow a trail of one T. urticae female, suggesting that the amount of spun threads and their chemical components should correlate positively with the number of T. urticae individuals. To examine whether chemical components of T. urticae trails are responsible for the predatory mite's trail following, we collected separate T. urticae threads from the exuviae and eggs, and then washed the threads with methanol to separate chemical components from physical attributes of the threads. Female N. womersleyi did not follow T. urticae trails that had been washed with methanol but contained physical residues, but they did follow the direction to which the methanol extracts of the T. urticae trails was applied. These results suggest that the predatory mite follows chemical, not physical, attributes of T. urticae trails.

  20. Ticks (Acari: Ixodida) on wild carnivores in Brazil.

    Science.gov (United States)

    Labruna, Marcelo B; Jorge, Rodrigo S P; Sana, Dênis A; Jácomo, Anah Tereza A; Kashivakura, Cyntia K; Furtado, Mariana M; Ferro, Claudia; Perez, Samuel A; Silveira, Leandro; Santos, Tarcísio S; Marques, Samuel R; Morato, Ronaldo G; Nava, Alessandra; Adania, Cristina H; Teixeira, Rodrigo H F; Gomes, Albério A B; Conforti, Valéria A; Azevedo, Fernando C C; Prada, Cristiana S; Silva, Jean C R; Batista, Adriana F; Marvulo, Maria Fernanda V; Morato, Rose L G; Alho, Cleber J R; Pinter, Adriano; Ferreira, Patrícia M; Ferreira, Fernado; Barros-Battesti, Darci M

    2005-01-01

    The present study reports field data of ticks infesting wild carnivores captured from July 1998 to September 2004 in Brazil. Additional data were obtained from one tick collection and from previous published data of ticks on carnivores in Brazil. During field work, a total of 3437 ticks were collected from 89 Cerdocyon thous (crab-eating fox), 58 Chrysocyon brachyurus (maned wolf), 30 Puma concolor (puma), 26 Panthera onca (jaguar), 12 Procyon cancrivorus (crab-eating raccoon), 4 Speothos venaticus (bush dog), 6 Pseudalopex vetulus (hoary fox), 6 Nasua nasua (coati), 6 Leopardus pardalis (ocelot), 2 Leopardus tigrinus (oncilla), 1 Leopardus wiedii (margay), 1 Herpailurus yagouaroundi (jaguarundi), 1 Oncifelis colocolo (pampas cat), 1 Eira barbara (tayara), 1 Galictis vittata (grison), 1 Lontra longicaudis (neotropical otter), and 1 Potus flavus (kinkajou). Data obtained from the Acari Collection IBSP included a total of 381 tick specimens collected on 13 C. thous, 8 C. brachyurus, 3 P. concolor, 10 P. onca, 3 P. cancrivorus, 4 N. nasua, 1 L. pardalis, 1 L. wiedii, 4 H. yagouaroundi, 1 Galictis cuja (lesser grison), and 1 L. longicaudis. The only tick-infested carnivore species previously reported in Brazil, for which we do not present any field data are Pseudalopex gymnocercus (pampas fox), Conepatus chinga (Molina's hog-nosed skunk), and Conepatus semistriatus (striped hog-nosed skunk). We report the first tick records in Brazil on two Felidae species (O. colocolo, H. yagouaroundi), two Canidae species (P. vetulus, S. venaticus), one Procyonidae species (P. flavus) and one Mustelidae (E. barbara). Tick infestation remains unreported for 5 of the 26 Carnivora species native in Brazil: Oncifelis geoffroyi (Geoffroy's cat), Atelocynus microtis (short-eared dog), Pteronura brasiliensis (giant otter), Mustela africana (Amazon weasel), and Bassaricyon gabbii (olingo). Our field data comprise 16 tick species represented by the genera Amblyomma (12 species), Ixodes (1

  1. New feather mites of the subfamily Pterodectinae (Acari: Astigmata: Proctophyllodidae) from passerines (Aves: Passeriformes) in Mato Grosso do Sul, Brazil

    Czech Academy of Sciences Publication Activity Database

    Mironov, S. V.; Literák, I.; Čapek, Miroslav

    2008-01-01

    Roč. 1947, - (2008), s. 1-38 ISSN 1175-5326 Institutional research plan: CEZ:AV0Z60930519 Keywords : Acari * Astigmata * feather mites * systematics * Brazil * Proctophyllodidae * Aves * Passeriformes Subject RIV: EG - Zoology Impact factor: 0.740, year: 2008 http://www.mapress.com/zootaxa/2008/f/zt01947p038.pdf

  2. Response of forest soil Acari to prescribed fire following stand structure manipulation in the southern Cascade Range.Can

    Science.gov (United States)

    Michael A. Camann; Nancy E. Gillette; Karen L. Lamoncha; Sylvia R. Mori

    2008-01-01

    We studied responses of Acari, especially oribatid mites, to prescribed low-intensity fire in an east side pine site in the southern Cascade Range in California. We compared oribatid population and assemblage responses to prescribed fire in stands that had been selectively logged to enhance old growth characteristics, in logged stands to minimize old growth...

  3. Effect of coconut palm proximities and Musa spp. germplasm resistance to colonization by Raoiella indica (Acari: Tenuipalpidae)

    Science.gov (United States)

    Although coconut (Cocos nucifera L.) is the predominant host for Raoiella indica Hirst (Acari: Tenuipalpidae), false spider mite infestations do occur on bananas and plantains (Musa spp. Colla). Since its introduction, the banana and plantain industries have been negatively impacted to different deg...

  4. The Genus Ixodes (Acari: Ixodidae) in Mexico: Adult Identification Keys, Diagnoses, Hosts, and Distribution

    Science.gov (United States)

    2010-01-01

    Cricetidae and Hominidae ( Homo sapiens Linnaeus, 1758) (Mammalia) (Hoffmann, 1969). Note. The tick from Valle de Bravo, Estado de México, was...distribution El género Ixodes (Acari: Ixodidae) en México: claves de identifi cación para adultos, diagnosis, huéspedes y distribución Carmen Guzmán...Incorporación de Profesores de Carrera en Facultades y Escuelas para el Fortalecimiento de la Investigación (PROFIP). Tila María Pérez, Curator of CNAC

  5. Mites (Acari Associated with the Desert Seed Harvester Ant, Messor pergandei (Mayr

    Directory of Open Access Journals (Sweden)

    Kaitlin A. Uppstrom

    2011-01-01

    Full Text Available Mites (Acari associated with the seed harvester ant Messor pergandei were investigated in the Sonoran desert of Arizona. At least seven representatives of the mite genera Armacarus, Lemanniella, Petalomium, Forcellinia, Histiostoma, Unguidispus, and Cosmoglyphus are phoretically associated with M. pergandei. Most of these morphospecies show preference for specific phoretic attachment sites and primarily use female alates rather than male alates for dispersal. Five mite morphospecies were found in low numbers inhabiting the chaff piles: Tydeidae sp., Procaeculus sp., Anystidae sp., Bakerdania sp., and Tetranychidae sp. The phoretic Petalomium sp. was observed consuming fungus growing on a dead queen, but the roles of the other mite species remain mostly unresolved.

  6. The impact of cucumber nitrogen nutrition on life history traits of Tetranychus urticae (Koch) (Acari: Tetranychidae)

    OpenAIRE

    Motahari , M.; Kheradmand , K.; Roustaee , A.M.; Talebi , A.A.

    2014-01-01

    International audience; The nutritional quality of the host plant is one of the most important factors of growth and reproduction for crop pests. In order to investigate the impact of nitrogen on the biology and demography of Tetranychus urticae Koch (Acari: Tetranychidae), cucumber plants were nourished by four levels of nitrogen: N1 (10 meq /L NO3-), N2 (12 meq/L NO3-), N3 (15 meq/L NO3-) and N4 (20 meq /L NO3-). The experiments were performed under laboratory conditions at 25+/-1 °C, 60+/-...

  7. Ácaros de penas (Acari: Astigmata) em aves não passeriformes do Brasil

    OpenAIRE

    Pedroso, Luiz Gustavo de Almeida [UNESP

    2015-01-01

    Feather mites are the most diverse fauna of arthropods that permanently lives on birds. These mites are morphologicaly adapted to four different microhabitats on their host feathers, which contributes to their diversity. There is a high specificity between the mites and their bird hosts, especially due to the transmission process that occurs mainly from parents to offspring during the parental care, so that each bird group often hosts a specific feather mite fauna, exposing the parallel evolu...

  8. The residual and direct effects of reduced-risk and conventional miticides on twospotted spider mites, Tetranychus urticae (Acari: Tetranychidae) and predatory mites (Acari: Phytoseiidae)

    International Nuclear Information System (INIS)

    Liburd, O.E.; White, J.C.; Rhodes, E.M.; Browdy, A.A.

    2007-01-01

    The residual effects of several reduced-risk and conventional miticides were evaluated in strawberries (Fragaria × ananassa Duchesne) on the twospotted spider mite (TSSM), Tetranychus urticae Koch (Acari: Tetranychidae) and on 2 predatory mites, Neoseiulus californicus McGregor and Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae). Experiments were conducted in the laboratory and greenhouse. The greenhouse experiments also tested the direct effects of the miticides on TSSM. The efficacy of conventional and reduced-risk miticides was evaluated on strawberry leaf discs and on whole plants for control of TSSM. Furthermore, the residual effects of these miticides were evaluated on whole strawberry plants against selective predatory mites. For TSSM, 5 treatments were evaluated: a conventional miticide; fenbutatin-oxide (Vendex[reg]) and 3 reduced-risk miticides; binfenazate (Acramite 50WP[reg]), activated garlic extract (Repel[reg]), sesame seed and castor oil (Wipeout[reg]), and a water-treated control. For predatory mites, the residual effects of only Acramite[reg] and Vendex[reg] were evaluated. Acramite[reg] was the most effective acaricide in reducing TSSM populations in both the laboratory and greenhouse experiments. Vendex[reg] and Wipeout[reg] were also effective in the laboratory, but did not cause significant reduction of TSSM in the greenhouse. Repel[reg] was the least effective of the 4 pesticides evaluated. Neither Acramite[reg] nor Vendex[reg] had a significant effect on either predatory mite species. However, there appeared to be more predatory mites on the Vendex[reg]-treated plants than on the Acramite[reg]-treated plants. There were significantly more predatory mites of both species on the cue plants, which were inoculated with TSSM versus the non-cue plants, which were not inoculated. (author) [es

  9. Reproductive parameters of Phytoseiulus macropilis (Banks fed with Tetranychus urticae Koch (Acari: Phytoseiidae, Tetranychidae in laboratory

    Directory of Open Access Journals (Sweden)

    G. C. Souza-Pimentel

    Full Text Available Abstract Predatory mites that belong to the Phytoseiidae family are one of the main natural enemies of phytophagous mites, thus allowing for their use as a biological control. Phytoseiulus macropilis (Banks, 1904 (Acari: Phytoseiidae is among the main species of predatory mites used for this purpose. Tetranychus urticae Koch, 1836 (Acari: Tetranychidae is considered to be one of the most important species of mite pests and has been described as attacking over 1,100 species of plants in 140 families with economic value. The objective of the present study was to investigate, in the laboratory, the reproductive parameters of the predatory mite P. macropilis when fed T. urticae. Experiments were conducted under laboratory conditions at 25 ± 2 °C of temperature, 70 ± 10% RH and 14 hours of photophase. In addition, biological aspects were evaluated and a fertility life table was established. The results of these experiments demonstrated that the longevity of adult female was 27.5 days and adult male was 29.0 days. The population was estimated to increase approximately 27 times (Ro in mean generation time (T, which was 17.7 days. Lastly, the mite population grew 1.2 times/day (λ and doubled every 3.7 days (TD.

  10. Plant architecture and prey distribution influence foraging behavior of the predatory mite Phytoseiulus persimilis (Acari: Phytoseiidae).

    Science.gov (United States)

    Gontijo, Lessando M; Nechols, James R; Margolies, David C; Cloyd, Raymond A

    2012-01-01

    The arrangement, number, and size of plant parts may influence predator foraging behavior, either directly, by altering the rate or pattern of predator movement, or, indirectly, by affecting the distribution and abundance of prey. We report on the effects of both plant architecture and prey distribution on foraging by the predatory mite, Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae), on cucumber (Cucumis sativus L.). Plants differed in leaf number (2- or 6-leafed), and there were associated differences in leaf size, plant height, and relative proportions of plant parts; but all had the same total surface area. The prey, the twospotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae), were distributed either on the basal leaf or on all leaves. The effect of plant architecture on predator foraging behavior varied depending on prey distribution. The dimensions of individual plant parts affected time allocated to moving and feeding, but they did not appear to influence the frequency with which predators moved among different plant parts. Overall, P. persimilis moved less, and fed upon prey longer, on 6-leafed plants with prey on all leaves than on plants representing other treatment combinations. Our findings suggest that both plant architecture and pattern of prey distribution should be considered, along with other factors such as herbivore-induced plant volatiles, in augmentative biological control programs.

  11. Development, oviposition, and mortality of Neoseiulus fallacis (Acari: Phytoseiidae) in response to reduced-risk insecticides.

    Science.gov (United States)

    Villanueva, Raul T; Walgenbach, James F

    2005-12-01

    Eight reduced-risk insecticides (acetamiprid, thiamethoxam, imidacloprid, thiacloprid, methoxyfenozide, pyriproxyfen, indoxacarb, and spinosad) and three conventional insecticides (azinphosmethyl, fenpropathrin, and esfenvalerate) were tested against Neoseiulus fallacis (Garman) (Acari: Phytoseiidae), the most abundant predacious mite in North Carolina apple (Malus spp.) orchards. To assess the effect of insecticides on development and mortality of N. fallacis immatures, 12-h-old eggs were individually placed on bean leaf disks previously dipped in insecticide solutions. Tetranychus urticae Koch (Acari: Tetranychidae) females were added as a food source. None of the reduced-risk insecticides significantly affected immature N. fallacis compared with the control; however, the pyrethroids esfenvalerate and fenpropathrin were highly toxic to immatures. To evaluate the effect of insecticides on mortality and oviposition of adult N. fallacis, 7- to 8-d-old females were confined on insecticide-treated bean leaves with Malephora crocea (Aizoaceae) pollen added as a food source. Spinosad resulted in the highest mortality, whereas azinphosmethyl, acetamiprid, fenpropathrin, and imidacloprid were moderately toxic, and mortality from esfenvalerate, indoxacarb, thiacloprid, methoxyfenozide, pyriproxyfen, and thiamethoxam did not differ significantly from the control. Oviposition was affected in a similar manner, with the exception of acetamiprid that did not affect oviposition, and thiamethoxam that reduced oviposition.

  12. Phytoseiid mites of the Canary Islands (Acari, Phytoseiidae. II. Tenerife and La Gomera Islands

    Directory of Open Access Journals (Sweden)

    Ferragut, F.

    2007-12-01

    Full Text Available Phytoseiid mites (Acari, Phytoseiidae inhabiting plants in natural ecosystems from Tenerife and La Gomera islands (Canary Islands have been studied. Surveys were conducted from 1997 to 2002. Eleven species were collected, one of them being reported for the first time from the Canary Islands and six of them reported for the first time from Tenerife and La Gomera islands. Euseius machadoi n. sp. collected from woody plants in the Canarian laurisilva is proposed as a new species.

    En muestreos realizados desde 1997 hasta 2002 se ha estudiado la fauna de ácaros fitoseidos (Acari, Phytoseiidae asociada a plantas de ecosistemas naturales de las islas de Tenerife y La Gomera (Islas Canarias. Se han recolectado un total de 11 especies, siendo una de ellas citada por vez primera en las islas Canarias y seis de ellas citadas por primera vez en las islas de Tenerife y La Gomera. Euseius machadoi n. sp., recolectado en plantas leñosas de la laurisilva canaria, se propone como una nueva especie.

  13. O papel das aves na dispersão e germinação de sementes do pau-incenso (Pittoporum undulatum Vent. em um remanescente de Mata Atlântica. Bird role in seed dispersion and germination of Pittosporum undulatum Vent., seeds in an Atlantic Forest remnant.

    Directory of Open Access Journals (Sweden)

    Mariana Lopes CAMPAGNOLI

    2016-06-01

    Full Text Available A invasão biológica pela espécie Pittosporum undulatum Vent. pode ocasionar degradação de ecossistemas nativos, perda de espécies e de serviços ecossistêmicos. Além das características biológicas que favorecem seu estabelecimento, seus frutos são fontes alimentares para algumas espécies de aves, que acabam por dispersar suas sementes. O presente estudo foi realizado no Parque Estadual Alberto Löfgren, e visou verificar as espécies de aves potencialmente dispersoras do pau-incenso, comparar os registros de alimentação obtidos para esta árvore e para outras seis espécies arbóreas locais e avaliar a influência da ingestão das sementes pelas aves na sua taxa de germinação. A coleta de dados consistiu em observações focais das aves em atividade de forrageio no pau-incenso e a captura de indivíduos com redes de neblina para coleta de sementes nas fezes. Testes de germinação foram realizados com as sementes coletadas das fezes e diretamente dos frutos maduros. No total, foram encontradas 107 sementes nas fezes de oito sabiás, pertencentes a três espécies: Turdus rufiventris, Turdus amaurochalinus e Turdus albicollis. Não encontramos diferenças significativas nas taxas de germinação entre os tratamentos. Apesar da passagem das sementes pelo trato digestório das aves não ter alterado significativamente as taxas de germinação, os sabiás podem ser importantes dispersores do pau-incenso, permitindo a colonização de novas áreas por esta espécie exótica e intensificando seu processo de invasão biológica na Mata Atlântica.Biological invasion by the species Pittosporum undulatum Vent. could bring degradation to native ecosystems and loss of biodiversity and ecological services. Besides the biological features favoring the establishment of the species in natural environments, some bird species use its fruits as food sources, being responsible for its seed dispersion. The present study was held at Alberto L

  14. Community structure variability of Uropodina mites (Acari: Mesostigmata) in nests of the common mole, Talpa europaea, in Central Europe

    OpenAIRE

    Napiera?a, Agnieszka; M?dra, Anna; Leszczy?ska-Deja, Kornelia; Gwiazdowicz, Dariusz J.; Go?dyn, Bart?omiej; B?oszyk, Jerzy

    2016-01-01

    Underground nests of Talpa europaea, known as the common mole, are very specific microhabitats, which are also quite often inhabited by various groups of arthropods. Mites from the suborder Uropodina (Acari: Mesostigmata) are only one of them. One could expect that mole nests that are closely located are inhabited by communities of arthropods with similar species composition and structure. However, results of empirical studies clearly show that even nests which are close to each other can be ...

  15. First record of larvae of the water mite Hydrachna processifera Piersig, 1895 from Turkey (Acari, Hydrachnidia, Hydrachnidae

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    Medeni Aykut

    2018-02-01

    Full Text Available Larvae of water mite Hydrachna processifera Piersig, 1895 (Acari, Hydrachnidiae were reported on diving beetles Dytiscus marginalis Linnaeus, 1758 (Coleoptera, Dytiscidae from Turkey. The redescription of the larva was made. Earlier, the larva H. processifera was described as H. inermis, but it was subsequently synonymized with H. processifera. The larva of H. processifera is a new record for the Turkish fauna. All larvae of H. processifera were found on the mesosternum of the one specimens (prevalence = 16.7%.

  16. Laboratory evaluation of the effect of Beauveria bassiana on the predatory mite Phytoseiulus persimilis (Acari: Phytoseiidae).

    Science.gov (United States)

    Ullah, Mohammad Shaef; Lim, Un Taek

    2017-09-01

    Tetranychus urticae Koch (Acari: Tetranychidae), a major pest of many agricultural crops, is mainly controlled with chemical acaricides. However, predatory mites and entomopathogens have been proposed as alternative control agents. In this study, the effect of the BotaniGard ® GHA strain of Beauveria bassiana on the survival, longevity, fecundity, and egg hatch rate of the predatory mite Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae) were studied under laboratory conditions. When B. bassiana was applied directly to P. persimilis eggs at a concentration of 1×10 8 conidia/ml, corrected hatchability was less than 5%, and the corrected mortality of nymphs and adults was not significantly different from control 10days after treatment. Phytoseiulus persimilis nymphs that hatched from treated eggs showed no significant change in their development time, adult female longevity, hatch rate, survival rates over time, or offspring sex ratio. However, significant negative effects on fecundity and life table parameters (net reproductive rate, intrinsic rate of natural increase, mean generation time, finite rate of increase, and doubling time) were found when B. bassiana was applied to the adult stage. Spraying B. bassiana at 1×10 8 conidia/ml on newly emerged adults of P. persimilis caused 44% reduction in the oviposition period, 26% in adult longevity, and 63% in fecundity. Due to these negative effects, B. bassiana should be used with careful adjustment of application timing (first spray B. bassiana and then release P. persimilis) to supplement biological mite control systems using P. persimilis. Copyright © 2017 Elsevier Inc. All rights reserved.

  17. First record of the genus .i.Bloszykiella./i. in Kenya with the description of .i.Bloszykiella tertia./i. sp n. (Acari: Uropodidae) from a .i.Pinus radiata./i. D. Don plantation

    Czech Academy of Sciences Publication Activity Database

    Kontschán, J.; Starý, Josef

    2015-01-01

    Roč. 56, č. 3 (2015), s. 629-635 ISSN 1681-5556 Institutional support: RVO:60077344 Keywords : Acari * new species * Pinus radiata plantation * Kenya Subject RIV: EG - Zoology Impact factor: 0.708, year: 2015

  18. Artrópodes em ninhos de Columba livia Gmelin, 1789 (Aves, Columbidae em área urbana de Manaus, Amazonas, Brasil.

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    Guilherme Maerschner Ogawa

    2008-12-01

    Full Text Available Resumo. Foi realizado um estudo sobre artrópodes que vivem em ninhos de Columba livia Gmelin 1789, ave conhecida como pombo urbano e que nidifica em construções humanas, com o intuito de inventariar as espécies de artrópodes associadas. Foram coletados 14 ninhos de C. livia em nove bairros da área urbana de Manaus os quais foram levados ao laboratótio e colocados em um extrator do tipo Berlese-Tulgren por 12 dias, para a captura dos artrópodes. Foram encontrados 10.323 artrópodes, pertencentes a 3 subfilos, 3 classes, 14 ordens e 33famílias. Acari foi mais abundante com 7.879 indivíduos, sendo o gênero Caloglyphus Berlese, 1923, o mais representativo (75%. A maioria das espécies encontradas é detritívora. A diversidade de artrópodes foi menor em Manaus se comparada à registrada em trabalhos da região Paleártica, provavelmente por C. livia ser uma espécie exótica na fauna Neotropical. Arthropods in the nests of Columba livia Gmelin 1789 (Aves, Columbidae in the urban area of Manaus, Amazonas, Brazil. Abstract. The objective of this study was identify the arthropod fauna in nests of the urban pigeon, Columba livia Gmelin 1789 who build their nests in man-made buildings. Fourteen nests were collected in nine districts of the built up area of the city of Manaus. For twelve days, arthropods were extracted in a Berlese-Tulgren funnel. A total of 10.323 arthropods representing 3 subphyla, 3 classes, 14 orders and 33 families were detected. Acari was the most abundant group with 7879 individuals. Mites of the genus Caloglyphus Berlese, 1923, made up over 75 % of all arthropods collected. Most of the arthropods extracted are detrivorous and apterous. The diversity found in Manaus was lower than that reported for samples collected in the Palearctic Region, probably because C. livia is exotic in the Neotropical fauna. The introduction of this pigeon can be responsible for a major contact between some arthropods and humans.

  19. Feather mites (Acari, Astigmata from Azorean passerines (Aves, Passeriformes: lower species richness compared to European mainland

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    Rodrigues Pedro

    2015-01-01

    Full Text Available Ten passerine species were examined on three islands of the Azores (North Atlantic during 2013 and 2014 in order to identify their feather mite assemblages. We recorded 19 feather mite species belonging to four families of the superfamily Analgoidea (Analgidae, Proctophyllodidae, Psoroptoididae and Trouessartiidae. A high prevalence of feather mite species was recorded on the majority of the examined host species. Only three passerine species (Sylvia atricapilla, Regulus regulus and Serinus canaria presented the same full complex of mite species as commonly occurs in the plumage of their closest relatives in continental Europe. Passer domesticus presented the same limited fauna of feather mites living in the plumage as do its co-specifics in continental Europe. Carduelis carduelis bears the same feather mite species as do most of its continental populations in Europe, but it lacks one mite species occurring on this host in Egypt. Turdus merula, Pyrrhula murina and Fringilla coelebs are missing several mite species common to their continental relatives. This diminution could be explained by the founder effect, whereby a limited number of colonizing individuals did not transport the full set of feather mite species, or by the extinction of some mite species after initially having reached the Azores. The only individual of Motacilla cinerea sampled in this study presented a new host record for the mite species Trouessartia jedliczkai.

  20. New records of water mites of the genus Atractides Koch, 1837 (Acari: Hydrachnidia, Hygrobatidae) from Thailand, Malaysia and Sulawesi (Indonesia), with the description of four new species

    NARCIS (Netherlands)

    Pesic, V.; Smit, H.

    2009-01-01

    New records of water mites of the genus Atractides Koch, 1837 (Acari: Hydrachnidia, Hygrobatidae) from Thailand, Malaysia and Sulawesi are presented. Four species new to science, Atractides siamis, A. malayensis, A. tahanensis and A. sulawesiensis, are described; a first description of the male is

  1. The Genus Ixodes (Acari: Ixodidae) in Mexico: Adult Identification Keys, Diagnoses, Hosts, and Distribution (El genero Ixodes (Acari: Ixodidae) en Mexico: claves de identificacion para adultos, diagnosis, huespedes y distribucion)

    Science.gov (United States)

    2010-01-01

    also from Estado de México (Hoffmann, 1969). Hosts in Mexico. Cricetidae and Hominidae ( Homo sapiens Linnaeus, 1758) (Mammalia) (Hoffmann, 1969...distribution El género Ixodes (Acari: Ixodidae) en México: claves de identifi cación para adultos, diagnosis, huéspedes y distribución Carmen Guzmán...postdoctoral scholarship under the Programa de Formación e Incorporación de Profesores de Carrera en Facultades y Escuelas para el Fortalecimiento de la

  2. Ocorrência de Brevipalpus phoenicis (Geijskes (Acari, Tenuipalpidae, Tetranychus urticae (Koch (Acari, Tetranychidae e Polyphagotarsonemus latus (Banks (Acari, Tarsonemidae sobre folhas de Ipomoea cairica (Linnaeus Sweet (Solanales, Convolvulaceae Occurrence of Brevipalpus phoenicis (Geijskes (Acari, Tenuipalpidae, Tetranychus urticae (Koch (Acari, Tetranychidae and Polyphagotarsonemus latus (Banks (Acari, Tarsonemidae on leaves of I. cairica (Linnaeus Sweet (Solanales, Convolvulaceae

    Directory of Open Access Journals (Sweden)

    Ozana M. de A. Maia

    2006-09-01

    Full Text Available A ocorrência de três espécies acarinas fitófagas é relatada pela primeira vez sobre folhas de Ipomoea cairica. As espécies Brevipalpus phoenicis (Geijskes, Tetranychus urticae (Koch e Polyphagotarsonemus latus (Banks, foram coletadas sobre folhas de I. cairica nas imediações da Universidade Federal do Paraná, Curitiba, Paraná, Brasil, em 20 de janeiro de 2005.The first occurrence of three phytophagus mites on Ipomoea cairica, is reported. The species Brevipalpus phoenicis (Geijskes, Tetranychus urticae (Koch and Polyphagotarsonemus latus (Banks were caught on leaves of I. cairica, around Universidade Federal do Paraná, Curitiba, Paraná, Brazil, in January 20th, 2005.

  3. New species and new records of mites of the genus Stigmaeus(Acari: Prostigmata: Stigmaeidae) from Crimea.

    Science.gov (United States)

    Khaustov, Alexander A

    2014-05-06

    Three new species of the genus Stigmaeus Koch, 1836 (Acari: Stigmaeidae) are described from various habitats in Crimea: Stigmaeus kuznetsovi sp. nov. from nests of Microtus socialis (Rodentia: Cricetidae); S. mitrofanovi sp. nov. from galleries of Pityogenes bistridentatus (Coleoptera: Curculionidae) under the bark of Pinus pallasiana, and S. silvestris sp. nov. from rotten log of Pinus pallasiana. Stigmaeus corticeus Kuznetsov and Wainstein, 1977 and S. maraghehiensis Bagheri and Ueckermann, 2012 are recorded for the first time in Crimea. A key to species of the genus Stigmaeus of Crimea is provided.

  4. Infection of the Gulf Coast Tick, Amblyomma Maculatum (Acari: Ixodidae), with Rickettsia Parkeri: First Report from the State of Delaware

    Science.gov (United States)

    2013-03-31

    0279276E-D761-4A27-BFF7-7329E05E0F66 Infection of the Gulf Coast tick, Amblyomma maculatum (Acari: Ixodidae), with Rickettsia parkeri: first report from...Spring, MD 20910-1230, U.S.A. Abstract The molecular detection of Rickettsia parkeri in a Gulf Coast tick, Amblyomma maculatum, collected in Delaware...near Smyrna, Delaware. All specimens were tested for the presence of Rickettsia with a genus-specific quantitative real-time polymerase chain

  5. Chlorotic spots on Clerodendrum, a disease caused by a nuclear type of Brevipalpus (Acari:Tenuipalpidae transmitted virus Mancha clorótica do Clerodendrum, uma enfermidade causada por um vírus do tipo nuclear, transmitido pelo ácaro Brevipalpus phoenicis (Acari:Tenuipalpidae

    Directory of Open Access Journals (Sweden)

    Elliot Watanabe Kitajima

    2008-02-01

    Full Text Available Chlorotic spots have been observed in plants of Clerodendrum x speciosum growing in residential gardens and parks in Piracicaba, SP, Brazil. Thin sections of diseased tissues revealed characteristic cytopathic effects of the nuclear type of the Brevipalpus (Acari: Tenuipalpidae mite-transmitted viruses (BTrV. Brevipalpus mites, identified as B. phoenicis, infesting symptomatic C. x speciosum plants transmitted the pathogen to healthy C. x speciosum and to C. thomsonae, Gomphrena globosa, Hibiscus cannabinus, H. coccineus, H. schizopetalus, Salvia leucantha, Spathiphyllum wallasi and Tetragonia expansa causing chlorotic spots on their leaves. Mechanical inoculation using leaf extracts from infected C. x speciosum resulted in chlorotic spots on inoculated C. x speciosum, Chenopodium quinoa, C. amaranticolor, G. globosa, H. cannabinus, H. coccineus and T. expansa leaves. C. amaranticolor and C. quinoa kept at 28 - 30°C became systemically infected. The same cytopathic effects caused by the nuclear type of BTrV were seen in tissues from all infected test plants by electron microscopy. The virus was purified from systemically infected leaves of C. amaranticolor and C. quinoa. A polyclonal antiserum obtained from an immunized rabbit presented a strong reaction with the homologous antigen in ELISA tests. The results suggest that this chlorotic spot disease of C. x speciosum is caused by a new species of the nuclear type of BTrV, tentatively named Clerodendrum chlorotic spot virus (ClCSV.Manchas cloróticas e necróticas foram observadas em folhas de várias plantas de coração-sangrento (Clerodendrum x speciosum cultivadas em parques e jardins em Piracicaba, SP, associadas à infestação pelo ácaro tenuipalpídeo Brevipalpus phoenicis. Exames preliminares de secções de tecido das manchas cloróticas ao microscópio eletrônico revelaram a ocorrência de efeitos citopáticos característicos dos induzidos pelos vírus do tipo nuclear, transmitido

  6. Acaricidal and repellent activities of essential oil of Eucalyptus globulus against Dermanyssus gallinae (Acari: Mesostigmata

    Directory of Open Access Journals (Sweden)

    Dehghani-Samani Amir

    2015-07-01

    Full Text Available Introduction: By considering an increase in drug resistance against red mites, finding the nonchemical herbal acaricide against Dermanyssus gallinae (De Geer (Acari: Mesostigmata is necessary to kill them and to reduce the chemical resistance against chemical acaricides in this specie. Dermanyssus gallinae is a potential vector of the causal agent of several viral diseases such as Equine encephalitis and St. Louis encephalitis. It can be a vector of bacteria such as Salmonella spp., Mycobacterium spp. and Erysipelothrix rhusiopathiae. It is also known to cause itching dermatosis in humans. In this study acaricidal and repellent activities of essential oil of Eucalyptus globulus against Dermanyssus gallinae were studied. Methods: After extracting the essential oil, different concentrations of the plant extract were prepared. Then, acaricidal effect of different concentrations was tested on poultry red mite, Dermanyssus gallinae, by dropping 3-4 drops of essential oil on mites. Repellent activity of essential oil was tested by Y-tube olfactometer bioassay. After the test, total number of killed and repellent mites reported. Results: Concentration of 1:2 or 50% had more acaricidal effect on mites. Also essential oil of Eucalyptus globulus had repellent activity against red mites. Conclusion: This study showed that essential oil of Eucalyptus globulus had acaricidal and repellent activities against red mites. Hence it might be used as a herbal acaricide against it to kill and to reduce the chemical resistance in this specie.

  7. Ticks (Acari: Ixodidae of livestock and their seasonal activities, northwest of Iran

    Directory of Open Access Journals (Sweden)

    Zahra Ramezani

    2014-09-01

    Full Text Available Objective: To identify the ticks (Acari: Ixodidae of livestock and their seasonal activities, in northwest of Iran, including the combination of two of the geographical regions of Iran (Caspian and mountain plateau where the majority of the domestic ruminants in Iran exist. Methods: Fifteen villages of Meshkin-Shahr County were selected randomly from different areas of the county. The animal dwellings were visited and the whole body of sheep, cows, goats and dogs were examined for their probable infestation. Samples were identified at the level of species according to the standard morphological key. Results: In this study 1 208 specimen were collected and totally nine species (Dermacentor marginatus, Dermacentor niveus, Haemaphysalis erinacei, Haemaphysalis punctata, Hyalomma anatolicum, Hyalomma asiaticum, Hyalomma marginatum, Rhipicephalus bursa and Rhipicephalus sanguineus were identified in this study. Also 569 host including 40 cows, 450 sheep, 70 goats and 9 dogs were examined for infestation and among them 255 were infested which showed a 44% of infestation among examined livestock. The infestation rate among sheep (46% was higher than other hosts. The infestation rates among the rest of hosts were as: cows (40%, goat (37% and dogs (33%. Conclusions: The results of this study and other studies of the region showed the probability of the establishment and development of the burden of several tick-borne diseases.

  8. Rickettsia parkeri and "Candidatus Rickettsia andeanae" in Questing Amblyomma maculatum (Acari: Ixodidae) From Mississippi.

    Science.gov (United States)

    Lee, J K; Moraru, G M; Stokes, J V; Wills, R W; Mitchell, E; Unz, E; Moore-Henderson, B; Harper, A B; Varela-Stokes, A S

    2017-03-01

    Amblyomma maculatum Koch (Acari: Ixodidae), the primary vector for Rickettsia parkeri, may also be infected with a rickettsia of unknown pathogenicity, "Candidatus Rickettsia andeanae." Infection rates with these rickettsiae vary geographically, and coinfected ticks have been reported. In this study, infection rates of R. parkeri and "Ca. R. andeanae" were evaluated, and rickettsial DNA levels quantified, in 335 questing adult A. maculatum collected in 2013 (n = 95), 2014 (n = 139), and 2015 (n = 101) from Oktibbeha County, MS. Overall infection rates of R. parkeri and "Ca. R. andeanae" were 28.7% and 9.3%, respectively, with three additional A. maculatum (0.9%) coinfected. While R. parkeri-infected ticks were detected all three years (34.7% in 2013; 13.7% in 2014; 43.6% in 2015), "Ca. R. andeanae" was not detected in 2013, and was detected at rates of 10.8% in 2014, and 15.8% in 2015. Interestingly, rickettsial DNA levels in singly-infected ticks were significantly lower in "Ca. R. andeanae"-infected ticks compared to R. parkeri-infected ticks (P Rickettsia species in A. maculatum at the population level. © The Authors 2016. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  9. Biology, ecology and control of the Penthaleus species complex (Acari: Penthaleidae).

    Science.gov (United States)

    Umina, Paul A; Hoffmann, Ary A; Weeks, Andrew R

    2004-01-01

    Blue oat mites, Penthaleus spp. (Acari: Penthaleidae), are major agricultural pests in southern Australia and other parts of the world, attacking various pasture, vegetable and crop plants. Management of these mites has been complicated by the recent discovery of three cryptic pest species of Penthaleus, whereas prior research had assumed a single species. The taxonomy, population genetics, ecology, biology and control of the Penthaleus spp. complex are reviewed. Adult Penthaleus have a dark blue-black body approximately 1 mm in length, and eight red-orange legs. Within Australia, they are winter pests completing two or three generations a season, depending on conditions. The summer is passed as diapausing eggs, when long-distance dispersal is thought to occur. The Penthaleus spp. reproduce by thelytokous parthenogenesis, with populations comprising clones that differ ecologically. The three pest Penthaleus spp. differ markedly in their distributions, plant hosts, timing of diapause egg production and response to pesticides, highlighting the need to develop control strategies that consider each species separately. Chemicals are the main weapons used in current control programs, however research continues into alternative more sustainable management options. Host plant resistance, crop rotations, conservation of natural enemies, and improved timing of pesticide application would improve the management of these pests. The most cost-effective and environmentally acceptable means of control will result from the integration of these practices combined with the development of a simple field-based kit to distinguish the different mite species.

  10. Evidence for host plant preference by Iphiseiodes quadripilis (Acari: Phytoseiidae) on Citrus.

    Science.gov (United States)

    Villanueva, Raul T; Childers, Carl C

    2006-01-01

    In this study, we present field and laboratory evidence on the preference of Iphiseiodes quadripilis (Banks) for grapefruit (Citrus paradisi Macfadyen) leaves compared with sweet orange (Citrus sinensis (L.) Osbeck) leaves. This preference was confirmed in four orchards whether leaf samples were taken from either border trees of contiguous grapefruit or sweet orange or interior row trees with both citrus species in adjacent rows. Iphiseiodes quadripilis was most abundant in grapefruit trees in spite of the greater abundance of the Texas citrus mite, Eutetranychus banksi (McGregor) (Acari: Tetranychidae) in sweet orange trees. Similar preference responses were observed in laboratory tests using a Y-tube olfactometer whether I. quadripilis were collected from sweet orange or grapefruit. Iphiseiodes quadripilis collected from grapefruit trees showed significant preference for grapefruit over sweet orange leaves in contact choice tests using an arena of alternating leaf strips (12 mm long x 2 mm wide) of sweet orange and grapefruit. However, I. quadripilis collected from sweet orange trees did not show preference for either grapefruit or sweet orange leaves. Based on these results, grapefruit leaves foster some unknown factor or factors that retain I. quadripilis in greater numbers compared with sweet orange leaves.

  11. Cuticle expansion during feeding in the tick Amblyomma hebraeum (Acari: Ixodidae): The role of hydrostatic pressure.

    Science.gov (United States)

    Kaufman, W Reuben; Kaufman, S; Flynn, Peter C

    2016-05-01

    Female Amblyomma hebraeum ticks (Acari: Ixodidae) increase their weight ∼10-fold during a 'slow phase of engorgement' (7-9 days), and a further 10-fold during the 'rapid phase' (12-24h). During the rapid phase, the cuticle thins by half, with a plastic (permanent) deformation of greater than 40% in two orthogonal directions. A stress of 2.5 MPa or higher is required to achieve this degree of deformation (Flynn and Kaufman, 2015). Using a dimensional analysis of the tick body and applying the Laplace equation, we calculated that the tick must achieve high internal hydrostatic pressures in order to engorge fully: greater than 55 kPa at a fed:unfed mass ratio of ∼20:1, when cuticle thinning commences (Flynn and Kaufman, 2011). In this study we used a telemetric pressure transducer system to measure the internal hydrostatic pressure of ticks during feeding. Sustained periods of irregular high frequency (>20 Hz) pulsatile bursts of high pressure (>55 kPa) were observed in two ticks: they had been cannulated just prior to the rapid phase of engorgement, and given access to a host rabbit for completion of the feeding cycle. The pattern of periods of high pressure generation varied over the feeding cycle and between the two specimens. We believe that these pressures exceed those reported so far for any other animal. Copyright © 2016 Elsevier Ltd. All rights reserved.

  12. Essential oils of aromatic Egyptian plants repel nymphs of the tick Ixodes ricinus (Acari: Ixodidae).

    Science.gov (United States)

    El-Seedi, Hesham R; Azeem, Muhammad; Khalil, Nasr S; Sakr, Hanem H; Khalifa, Shaden A M; Awang, Khalijah; Saeed, Aamer; Farag, Mohamed A; AlAjmi, Mohamed F; Pålsson, Katinka; Borg-Karlson, Anna-Karin

    2017-09-01

    Due to the role of Ixodes ricinus (L.) (Acari: Ixodidae) in the transmission of many serious pathogens, personal protection against bites of this tick is essential. In the present study the essential oils from 11 aromatic Egyptian plants were isolated and their repellent activity against I. ricinus nymphs was evaluated Three oils (i.e. Conyza dioscoridis L., Artemisia herba-alba Asso and Calendula officinalis L.) elicited high repellent activity in vitro of 94, 84.2 and 82%, respectively. The most active essential oil (C. dioscoridis) was applied in the field at a concentration of 6.5 µg/cm 2 and elicited a significant repellent activity against I. ricinus nymphs by 61.1%. The most repellent plants C. dioscoridis, C. officinalis and A. herba-alba yielded essential oils by 0.17, 0.11 and 0.14%, respectively. These oils were further investigated using gas chromatography-mass spectrometry analysis. α-Cadinol (10.7%) and hexadecanoic acid (10.5%) were the major components of C. dioscoridis whereas in C. officinalis, α-cadinol (21.2%) and carvone (18.2%) were major components. Artemisia herba-alba contained piperitone (26.5%), ethyl cinnamate (9.5%), camphor (7.7%) and hexadecanoic acid (6.9%). Essential oils of these three plants have a potential to be used for personal protection against tick bites.

  13. Aggregation in the tick Ixodes ricinus (Acari: Ixodidae): use and reuse of questing vantage points.

    Science.gov (United States)

    Healy, John A E; Bourke, Patrick

    2008-03-01

    Ongoing work in oak woods in Killarney National Park in southwestern Ireland is focusing on the factors influencing the fine-scale aggregated distribution of Ixodes ricinus L. (Acari: Ixodidae) on the ground. The extent of reuse of stems of vegetation as questing points by adult ticks was determined by paint-marking stems on which ticks were found, counting and removing these ticks, and subsequently reexamining the same stems for ticks on two further occasions. Overall, an estimated 2,967 stems in 123 separate rush plants (Juncus effusus L.) were examined. Statistical analysis of the data demonstrated a highly significant reoccupancy by ticks of stems previously and recently used. Furthermore, it is shown that the extent of stem reuse by ticks is significantly and positively correlated with the numbers of ticks originally observed on those stems. Although other factors may be involved in generating clumping of ticks, the results are compatible with the proposition that aggregation of I. ricinus on the ground is pheromone-mediated. The findings are discussed in relation to what is known about the powers of lateral movement of I. ricinus on the ground and the possible implications for the performance of tick traps.

  14. Morphometric variations of laelapine mite (Acari: Mesostigmata populations infesting small mammals (Mammalia in Brazil

    Directory of Open Access Journals (Sweden)

    F. Martins-Hatano

    Full Text Available The goal of this study was to evaluate the morphometric variation of laelapine populations (Acari, Mesostigmata associated with neotropical oryzomyine rodents at different geographic localities in Brazil. Three nominal mite species were selected for study, all infesting the pelage of small mammals at different localities in Rio de Janeiro, Espírito Santo, Bahia, and the Federal District, Brazil. To analyse morphometric characteristics, thirty-seven morphological characters distributed across the whole body of each specimen were measured. We use the Analysis of Principal Components, extracting the three first axes and projecting each mite in these axes. Major species level changes in the taxonomy of the host mammals allows an independent examination of morphometric variation of mites infesting a set of distinctly different host species at different geographic localities. Gigantolaelaps vitzthumi and Laelaps differens are associated with oryzomyine rodents of the genus Cerradomys, and consistently showed a tendency to cluster by host phylogeny. Laelaps manguinhosi associated with Nectomys rattus in central Brazil is morphometrically distinct from mites infesting N. squamipes in the coastal restingas of Rio de Janeiro and Espírito Santo. The results obtained here indicate that laelapine mite populations can vary among geographic areas and among phylogenetically related host species. Clearly, the study of these mites at the population level can be an important tool for clarifying the taxonomy of both mites and hosts.

  15. Morphometric variations of laelapine mite (Acari: Mesostigmata) populations infesting small mammals (Mammalia) in Brazil.

    Science.gov (United States)

    Martins-Hatano, F; Gettinger, D; Manhães, M L; Bergallo, H G

    2012-08-01

    The goal of this study was to evaluate the morphometric variation of laelapine populations (Acari, Mesostigmata) associated with neotropical oryzomyine rodents at different geographic localities in Brazil. Three nominal mite species were selected for study, all infesting the pelage of small mammals at different localities in Rio de Janeiro, Espírito Santo, Bahia, and the Federal District, Brazil. To analyse morphometric characteristics, thirty-seven morphological characters distributed across the whole body of each specimen were measured. We use the Analysis of Principal Components, extracting the three first axes and projecting each mite in these axes. Major species level changes in the taxonomy of the host mammals allows an independent examination of morphometric variation of mites infesting a set of distinctly different host species at different geographic localities. Gigantolaelaps vitzthumi and Laelaps differens are associated with oryzomyine rodents of the genus Cerradomys, and consistently showed a tendency to cluster by host phylogeny. Laelaps manguinhosi associated with Nectomys rattus in central Brazil is morphometrically distinct from mites infesting N. squamipes in the coastal restingas of Rio de Janeiro and Espírito Santo. The results obtained here indicate that laelapine mite populations can vary among geographic areas and among phylogenetically related host species. Clearly, the study of these mites at the population level can be an important tool for clarifying the taxonomy of both mites and hosts.

  16. Comparison of thermal activity thresholds of the spider mite predators Phytoseiulus macropilis and Phytoseiulus persimilis (Acari: Phytoseiidae).

    Science.gov (United States)

    Coombs, Megan R; Bale, Jeffrey S

    2013-04-01

    The lower and upper thermal activity thresholds of the predatory mite Phytoseiulus macropilis Banks (Acari: Phytoseiidae) were compared with those of its prey Tetranychus urticae Koch (Acari: Tetranychidae) and one of the alternative commercially available control agents for T. urticae, Phytoseiulus persimilis Athias-Henriot. Adult female P. macropilis retained ambulatory function (CTmin) and movement of appendages (chill coma) at significantly lower temperatures (8.2 and 0.4 °C, respectively) than that of P. persimilis (11.1 and 3.3 °C) and T. urticae (10.6 and 10.3 °C). As the temperature was raised, P. macropilis ceased walking (CTmax) and entered heat coma (42.7 and 43.6 °C), beyond the upper locomotory limits of P. persimilis (40.0 and 41.1 °C), but before T. urticae (47.3 and 48.7 °C). Walking speeds were investigated and P. persimilis was found to have significantly faster ambulation than P. macropilis and T. urticae across a range of temperatures. The lower thermal activity threshold data indicate that P. macropilis will make an effective biological control agent in temperate climates.

  17. Ricoseius loxocheles (Acari: Phytoseiidae) is not a predator of false spider mite on coffee crops: What does it eat?

    Science.gov (United States)

    Vacacela Ajila, Henry E; Ferreira, João A M; Colares, Felipe; Oliveira, Cleber M; Bernardo, Ana Maria G; Venzon, Madelaine; Pallini, Angelo

    2018-01-01

    Ricoseius loxocheles (De Leon) (Acari: Phytoseiidae) is often found in coffee crops and is known to feed on coffee leaf rust, Hemileia vastatrix Berkeley and Broome (Uredinales). As the occurrence of coffee leaf rust is limited primarily to the rainy season, the mite may use other food sources to survive during the periods of low pathogen prevalence. It is well known that phytoseiid mites can survive on a variety of food sources, such as herbivorous mites, fungi and pollen. We evaluated the ability of R. loxocheles to survive and reproduce on a diet of Brevipalpus phoenicis Geijskes (Acari: Tenuipalpidae), cattail pollen (Typha spp.), clover rust (Puccinia oxalidis), bee pollen (Santa Bárbara ® dehydrated pollen, Santa Bárbara, MG, Brazil) and coffee leaf rust. Ricoseius loxocheles did not survive or reproduce on any B. phoenicis stages tested (egg, larva, adult). The survival and oviposition of R. loxocheles were directly affected by the presence of coffee rust urediniospores, but not by the presence of the prey. Survival and oviposition of the phytoseiid were similar when fed cattail pollen, clover rust and coffee leaf rust but was lower when fed bee pollen. Our results show that R. loxocheles is not a predator of B. phoenicis but it is able to utilize other resources besides coffee leaf rust.

  18. Detecção molecular de Ehrlichia canis e Babesia canis vogeli em Rhipicephalus sanguineus sensu lato de carrapatos em Cuba

    Directory of Open Access Journals (Sweden)

    Maylin Gonzalez Navarrete

    2016-12-01

    Full Text Available Os carrapatos (Acari: Ixodidae são de importância médica e veterinária relevantes em todo o mundo por causa da variedade de agentes patogênicos que podem transmitir. No presente trabalho, foi realizada uma pesquisa para identificar Babesia spp. e Ehrlichia spp. em carrapatos coletados de cães de Cuba. Foram coletados 431 carrapatos de 378 cães, tendo sido identificados como pertencentes às espécies de Ripicephalus sanguineus sensu lato (s. 1. O DNA genômico foi extraído com protocolo usando fenol/clorofórmio. Os carrapatos foram organizados em “pools” e o DNA extraído foi testado pela reação em cadeia da polimerase (nPCR para amplificar 398 pares de bases (pb do DNA ribossômico 16S (rDNA de Ehrlichia canis e PCR para amplificar aproximadamente 560 pb do DNA ribossômico 18S (rDNA. Dos 49 pools testados, 8,16% (n = 4/49 foram positivos para o E. canis por nPCR visando o gene do 16S rDNA e apenas um pool (n = 1/49; 2,04% foi positivo para o gene 18S rDNA para Babesia canis. As quatro sequências obtidas para o fragmento de 16S rDNA foram idênticas entre si e resultaram em 100% de identidade com E. canis de diferentes países. A sequência obtida do gene do 18S rDNA para Babesia spp. apresentou semelhança de 100% com Babesia canis vogeli quando comparada às sequências depositadas no Genbank. Esta foi a primeira detecção molecular desses agentes no carrapato R. sanguineus s. l. em Cuba.

  19. Repellent activities of dichloromethane extract of Allium sativum (garlic) (Liliaceae) against Hyalomma rufipes (Acari).

    Science.gov (United States)

    Nchu, Felix; Magano, Solomon R; Eloff, Jacobus N

    2016-12-02

    Dichloromethane (DCM) extract of garlic (Allium sativum Linn.) bulbs was assessed for its repellent effect against the hard tick, Hyalomma rufipes (Acari: Ixodidae) using two tick behavioural bioassays; Type A and Type B repellency bioassays, under laboratory conditions. These bioassays exploit the questing behaviour of H. rufipes, a tick that in nature displays ambush strategy, seeking its host by climbing up on vegetation and attaching to a passing host. One hundred microlitres (100 µL) of the test solution containing DCM extract of garlic bulbs and DCM at concentrations of 0.35%, 0.7% or 1.4% w/v were evaluated. DCM only was used for control. Tick repellency increased significantly (R2 = 0.98) with increasing concentration (40.03% - 86.96%) yielding an EC50 of 0.45% w/v in Type B repellency bioassay. At concentration of 1.4% w/v, the DCM extract of garlic bulbs produced high repellency index of 87% (male ticks) and 87.5% (female ticks) in the Type A repellency bioassay. Only 4% avoidance of male ticks or female ticks was recorded in the Type B repellency bioassay. In the corresponding controls, the mean numbers of non-repelled male or female ticks were 80% and 41 males or 38 females of 50 ticks in the Type A and Type B repellency bioassays, respectively. The variations in the results could be attributed to the difference in tick repellent behaviours that were assessed by the two repellency bioassays; the Type A repellency bioassay assessed repellent effect of garlic extracts without discriminating between deterrence and avoidance whereas the Type B repellency bioassay only assessed avoidance response. Generally, DCM extract of garlic was repellent against H. rufipes, albeit weak tick repellency was obtained in the Type B repellency bioassay. Furthermore, this study established that the tick repellent activity of garlic extracts is predominantly by deterrence.

  20. Effects of Insecticides and Fungicides Commonly Used in Tomato Production on Phytoseiulus persimilis (Acari: Phtyoseiidae).

    Science.gov (United States)

    Ditillo, J L; Kennedy, G G; Walgenbach, J F

    2016-12-01

    The twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), is an important pest of tomatoes in North Carolina. Resident populations of the predatory mite Phytoseiulus persimilis have recently been detected on field-grown tomatoes in central North Carolina, and potentially can be a useful biological control agent against T. urticae Laboratory bioassays were used to assess lethal and reproductive effects of 10 insecticides and five fungicides commonly used in commercial tomato production (chlorantraniliprole, spinetoram, permethrin, imidacloprid, dimethoate, dinotefuran, thiamethoxam, bifenthrin, fenpropathrin, lambda-cyhalothrin, azoxystrobin, chlorothalonil, boscalid, cyazofamid, and mancozeb) on P. persimilis adult females and eggs. Insecticides were tested using concentrations equivalent to 1×, 0.5×, and 0.1× of the recommended field rates. Fungicides were tested at the 1× rate only. Dimethoate strongly impacted P. persimilis with high adult mortality, reduced fecundity, and reduced hatch of eggs laid by treated adults, particularly at high concentrations. The pyrethroids lambda-cyhalothrin, bifenthrin, and fenpropathrin were associated with repellency and reproductive effects at high concentrations. Bifenthrin additionally caused increased mortality at high concentrations. Chlorantraniliprole, dinotefuran, and permethrin did not significantly affect mortality or reproduction. Imidacloprid significantly reduced fecundity and egg viability, but was not lethal to adult P. persimilis Thiamethoxam negatively impacted fecundity at the 1× rate. There were no negative effects associated with fungicide exposure with the exception of mancozeb, which impacted fecundity. Field trials were conducted to explore the in vivo impacts of screened insecticides on P. persimilis populations in the field. Field trials supported the incompatibility of dimethoate with P. persimilis populations. © The Authors 2016. Published by Oxford University Press on behalf

  1. Effect of Pollen from Different Plant Species on Development of Typhlodromus pyri (Sheuten (Acari: Phytoseiidae Efecto del Polen de Diferentes Especies Vegetales sobre el Desarrollo de Typhlodromus pyri (Sheuten (Acari: Phytoseiidae

    Directory of Open Access Journals (Sweden)

    Paulina Bermúdez

    2010-09-01

    Full Text Available Typhlodromus pyri (Sheuten (Acari: Phytoseiidae is a phytoseiid mite with a high potential in controlling the false Chilean mite (Brevipalpus chilensis Baker; Acari: Tenuipalpidae. The purpose of this study was to determine the effect of different plant species pollen as a complementary food in the development of T. pyri when its prey is in low levels of availability. Mites were individually placed on black plastic boxes with pollen and maintained at a temperature of 26 ± 2 °C, 70 ± 5% relative humidity (RH, and a photoperiod of 16:8 h (L:D. Postembryonic development of T. pyri was studied in 11 pollen species, as well as in a mixed diet of Hirschfeldia incana (L. and B. chilensis. Results show that H. incana was the only pollen in which there was no mortality (P > 0.05 along with the control (Oxalis pes-caprae L.. Mean duration from egg to adult with H. incana was 8.70 ± 1.66 d, protonymph 3.27 ± 0.21 d, and deutonymph 2.90 ± 1.45 d (P > 0.05. The mix feeding of T. pyri did not show any significant differences neither in the mean time from egg to adult, nor in mortality by feeding only with B. chilensis. Survival curves of T. pyri fed only with H. incana pollen, combined with B. chilensis, and only with B. chilensis are higher in the first 14 d of life. The sex ratio was not significantly affected by being fed only with H. incana pollen, B. chilensis, or by a combination of both.Typhlodromus pyri (Sheuten (Acari: Phytoseiidae es un ácaro que presenta un alto potencial de uso para el control de la falsa arañita roja de la vid (Brevipalpus chilensis Baker; Acari: Tenuipalpidae. El objetivo de este estudio fue determinar el efecto del polen de diferentes especies vegetales como alimento complementario para T. pyri cuando escasea su presa. Los parámetros post-embrionarios de T. pyri se estudiaron en 11 especies de polen, en una dieta mixta de polen de Hirschfeldia incana (L. y B. chilensis. Los ácaros se colocaron individualmente sobre

  2. Acari; Tetranychidae

    African Journals Online (AJOL)

    *Corresponding author; E-mail: eziahvin@yahoo.com ... on the Karate®-resistant population showed that the application of these products 1 h before treatment with. Karate® reduce ... tissue, as well as a reduced photosynthetic rate ... Piraneo (2013) was employed to determine ..... toxicity in Norwegian populations of T.

  3. Comparação econômica entre controle biológico e químico para o manejo de ácaro-vermelho em macieira Economic comparison of biological and chemical control in the management of red spider mites in apple orchard

    Directory of Open Access Journals (Sweden)

    Lino Bittencourt Monteiro

    2006-12-01

    Full Text Available O ácaro-vermelho da macieira, Panonychus ulmi (Acari: Tetranychidae, é uma importante praga na cultura da macieira em Fraiburgo - SC, e o controle biológico aplicado foi implantado em meados dos anos 90. O objetivo deste trabalho foi demonstrar os benefícios econômicos da utilização do controle biológico no manejo do ácaro-vermelho. A avaliação foi realizada em dois pomares comerciais de macieiras. Em um deles, foi implantado o controle biológico aplicado de ácaros, baseado na liberação do ácaro predador Neoseiulus californicus (Acari: Phytoseiidae, seleção de inseticidas e manejo de ervas invasoras, e o outro pomar seguiu o manejo convencional de artrópodes, baseado na aplicação de produtos químicos para o controle de insetos, ácaros fitófagos e ervas invasoras. A análise econômica mostrou que os custos com mão-de-obra e máquinas foram semelhantes em ambos os pomares, entretanto os custos com acaricidas foram significativamente inferiores no pomar onde o manejo foi o controle biológico, demonstrando que, apesar da necessidade de investimentos em instalações para a criação do ácaro predador e custos de manutenção das mesmas, a estratégia biológica foi economicamente viável.Red spider mite, Panonychus ulmi (Acari: Tetranychidae is a significant pest in apple tree in Fraiburgo, Santa Catarina (SC and applied biological control was implemented in the mid-nineties. The objective of this study was to demonstrate the economic benefits of biological control in the management of red spider mite. The assessment was carried out in two commercial orchards, one of which was subjected to biological control of spider mite by releasing the predator Neoseiulus californicus, insecticide selection and weed management, and the other to conventional arthropod management, based on the application of chemicals to control insects, phytofagous mites and weed. Economic analysis showed that the costs for labor and machines were

  4. TAMBO VIEJO: UN ASENTAMIENTO FORTIFICADO EN EL VALLE DE ACARÍ, PERÚ (Tambo Viejo: A Fortified Settlement in the Acari Valley, Peru

    Directory of Open Access Journals (Sweden)

    Lidio M. Valdez

    2013-10-01

    Full Text Available La aparición de los asentamientos fortificados y el origen del conflicto violento son temas poco discutidos en el contexto de la arqueología peruana. Considero que es oportuno investigar y determinar cuándo y por qué surgieron los primeros asentamientos fortificados. El propósito central de este artículo está precisamente orientado a responder tales interrogantes y discutir el tema del conflicto violento en el valle de Acarí y, por extensión, en la costa sur del Perú. Las evidencias arqueológicas disponibles señalan que, durante el periodo Intermedio Temprano, Tambo Viejo fue un asentamiento defendido por varias estructuras perimétricas. Otros sitios contemporáneos de Tambo Viejo en Acarí también fueron fortificados. Además, existe en el mismo valle evidencia tangible de violencia en la forma de prisioneros que posteriormente fueron decapitados. En contraste a la evidencia proveniente de Acarí, no existen asentamientos del periodo Intermedio Temprano identificables como fortificaciones, lo que hace de los sitios de Acarí los primeros asentamientos fortificados de toda la costa sur. ENGLISH: The emergence of violent conflict and of fortified settlements is a subject little studied within Peruvian archaeology. However, I consider it vital to investigate and determine the time and the reasons under which fortified settlements were first established. The central aim of this paper is to discuss when and why fortified settlements emerged first in the Acari Valley and, by extension, in the south coast of Peru. Available archaeological evidence indicates that during the Early Intermediate Period, Tambo Viejo was a fortified settlement protected by several massive walls. Other neighbouring sites in Acari were also fortified. Furthermore, in Acari there is conclusive evidence for violence in the form of decapitated individuals. In contrast to evidence coming from Acari, not a single Early Intermediate Period settlement from other

  5. Harşit Vadisi’nin (Türkiye) Caligonellid Akarları (Acari: Raphignathoidea: Caligonellidae)

    OpenAIRE

    DOĞAN, Sibel; DOĞAN, Salih; ERMAN, Orhan

    2018-01-01

    Bu çalışmada, Harşit Vadisi’nden (Türkiye) toplanancaligonellid akarların (Acari: Caligonellidae) iki cinsine ait toplam dört türtespit edildi. Türlerden üçü, Caligonellahumilis (Koch), Neognathusspectabilis (Summers ve Schlinger) ve N.terrestris (Summers ve Schlinger), çalışma alanından ilk defa kaydedildi.Bu türlerin, çeşitli organlarının şekilleri çizildi, ölçümleri alındı vetanımları yapıldı. Ayrıca Türkiye’de ve dünyada yayılışları üzerinde duruldu....

  6. Comparing chemical and biological control strategies for twospotted spider mites (Acari: Tetranychidae) in commercial greenhouse production of bedding plants.

    Science.gov (United States)

    Opit, George P; Perret, Jamis; Holt, Kiffnie; Nechols, James R; Margolies, David C; Williams, Kimberly A

    2009-02-01

    Efficacy, costs, and impact on crop salability of various biological and chemical control strategies for Tetranychus urticae Koch (Acari: Tetranychidae) were evaluated on mixed plantings of impatiens, Impatiens wallerana Hook.f (Ericales: Balsaminaceae), and ivy geranium, Pelargonium peltatum (1.) L'Hér. Ex Aiton (Geraniales: Geraniaceae), cultivars in commercial greenhouses. Chemical control consisting of the miticide bifenazate (Floramite) was compared with two biological control strategies using the predatory mite Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae). Treatments were 1) a single, early application of bifenazate; 2) a single, early release of predatory mites at a 1:4 predator:pest ratio based on leaf samples to estimate pest density; 3) a weekly release of predatory mites at numbers based on the area covered by the crop; and 4) an untreated control. T. urticae populations were monitored for 3 wk after the earliest treatment. When plants were ready for market, their salability was estimated. Bifenazate and density-based P. persimilis treatments effectively reduced T. urticae numbers starting 1 wk after plants had been treated, whereas the scheduled, area-based P. persimilis treatment had little or no effect. The percentage of flats that could be sold at the highest market wholesale price ranged from 15 to 33%, 44 to 86%, 84 to 95%, and 92 to 100%, in the control, weekly area-based P. persimilis, bifenazate, and single density-based P. persimilis treatments, respectively. We have shown that in commercial greenhouse production of herbaceous ornamental bedding plants, estimating pest density to determine the appropriate number of predators to release is as effective and offers nearly the same economic benefit as prophylactic use of pesticides.

  7. A novel disease affecting the predatory mite Phytoseiulus persimilis (Acari, Phytoseiidae): 1. Symptoms in adult females.

    Science.gov (United States)

    Schütte, Conny; Kleijn, Prisca W; Dicke, Marcel

    2006-01-01

    Adult female Phytoseiulus persimilis Athias-Henriot (Acari, Phytoseiidae) of one of our laboratory populations showed a lower degree of attraction to herbivore-induced plant volatiles than other laboratory populations. We hypothesized earlier that this consistent change in foraging behavior is a symptom of a disease, as it is a contagious phenomenon. Here we describe more symptoms by comparing mated females of this population (non-responding (NR) population) with mated females of other populations that are strongly attracted to herbivore-induced plant volatiles (responding populations). The most apparent characteristic of the NR population was the presence of numerous dorso-ventrally flattened females (76% of all females). These females had a normal size after mating but shrank during adulthood. Independent of their age, shrunken females did not reproduce and died a few days after shrinking. In addition to these profound differences in short term performance, females from the NR-population showed behavioral changes, including a lower degree of attraction to herbivore-induced plant volatiles, a higher tendency to leave a prey-patch and a lower predation rate. Moreover, about half of the live females of the NR-population carried birefringent dumbbell-shaped crystals in the legs whereas live females of a responding population carried crystals only in the lumen of the Malpighian tubules and the rectum. The symptom 'crystals in the legs' was correlated with low reproduction. Energy dispersive X-ray diffraction of these crystals revealed that they contain calcium and phosphorus along with carbon and oxygen. Crystals with comparable elemental compositions and the same characteristic concentric layering are well known in insects, where they are thought to play a major role in detoxification of calcium and heavy metals, and in storage of phosphorus. The fraction of predators carrying a white spot in the distal part of the opisthosoma, due to accumulation of excretory

  8. Evaluation of <em>HER2em> Gene Amplification in Breast Cancer Using Nuclei Microarray <em>in em>S>itu em>Hybridization

    Directory of Open Access Journals (Sweden)

    Xuefeng Zhang

    2012-05-01

    Full Text Available Fluorescence<em> em>>in situ em>hybridization (FISH assay is considered the “gold standard” in evaluating <em>HER2/neu (HER2em> gene status. However, FISH detection is costly and time consuming. Thus, we established nuclei microarray with extracted intact nuclei from paraffin embedded breast cancer tissues for FISH detection. The nuclei microarray FISH (NMFISH technology serves as a useful platform for analyzing <em>HER2em> gene/chromosome 17 centromere ratio. We examined <em>HER2em> gene status in 152 cases of invasive ductal carcinomas of the breast that were resected surgically with FISH and NMFISH. <em>HER2em> gene amplification status was classified according to the guidelines of the American Society of Clinical Oncology and College of American Pathologists (ASCO/CAP. Comparison of the cut-off values for <em>HER2em>/chromosome 17 centromere copy number ratio obtained by NMFISH and FISH showed that there was almost perfect agreement between the two methods (κ coefficient 0.920. The results of the two methods were almost consistent for the evaluation of <em>HER2em> gene counts. The present study proved that NMFISH is comparable with FISH for evaluating <em>HER2em> gene status. The use of nuclei microarray technology is highly efficient, time and reagent conserving and inexpensive.

  9. A New Natural Lactone from <em>Dimocarpus> <em>longan> Lour. Seeds

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    Zhongjun Li

    2012-08-01

    Full Text Available A new natural product named longanlactone was isolated from <em>Dimocarpus> <em>longan> Lour. seeds. Its structure was determined as 3-(2-acetyl-1<em>H>-pyrrol-1-yl-5-(prop-2-yn-1-yldihydrofuran-2(3H-one by spectroscopic methods and HRESIMS.

  10. Reference Gene Selection in the Desert Plant <em>Eremosparton songoricuem>m>

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    Dao-Yuan Zhang

    2012-06-01

    Full Text Available <em>Eremosparton songoricum em>(Litv. Vass. (<em>E. songoricumem> is a rare and extremely drought-tolerant desert plant that holds promise as a model organism for the identification of genes associated with water deficit stress. Here, we cloned and evaluated the expression of eight candidate reference genes using quantitative real-time reverse transcriptase polymerase chain reactions. The expression of these candidate reference genes was analyzed in a diverse set of 20 samples including various <em>E. songoricumem> plant tissues exposed to multiple environmental stresses. GeNorm analysis indicated that expression stability varied between the reference genes in the different experimental conditions, but the two most stable reference genes were sufficient for normalization in most conditions.<em> EsEFem> and <em>Esα-TUB> were sufficient for various stress conditions, <em>EsEF> and <em>EsACT> were suitable for samples of differing germination stages, and <em>EsGAPDH>and <em>Es>UBQ em>were most stable across multiple adult tissue samples. The <em>Es18Sem> gene was unsuitable as a reference gene in our analysis. In addition, the expression level of the drought-stress related transcription factor <em>EsDREB2em>> em>verified the utility of<em> E. songoricumem> reference genes and indicated that no single gene was adequate for normalization on its own. This is the first systematic report on the selection of reference genes in <em>E. songoricumem>, and these data will facilitate future work on gene expression in this species.

  11. Observaçoes sobre o parasitismo de Gallilichus hiregoudari D'souza & Jagannath (Acari: Syringobiidae em Gallus gallus (L. em infestações naturais

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    João Luiz Horacio Faccini

    1990-01-01

    Full Text Available The occurence of Gallilichus hiregoudari D'Souza e Jagannath in Gallus gallus (L. is widespread in Brazil. All life stages of the mite can be found within the quills of primaries and secondaries of the flight feathers. Nymphal heteromorphism, imbalanced sex ratio toward females and thanatochresis are common features. Damage of the pulp caps and raquis are common pathological findings.

  12. A revision of the family Ameroseiidae (Acari, Mesostigmata), with some data on Slovak fauna

    Science.gov (United States)

    Mašán, Peter

    2017-01-01

    Abstract The family Ameroseiidae Evans, 1961 (Acari: Mesostigmata) includes a total of 12 valid and adequately described genera, namely Afrocypholaelaps Elsen, 1972, Ameroseiella Bregetova, 1977, Ameroseius Berlese, 1904, Asperolaelaps Womersley, 1956, Brontispalaelaps Womersley, 1956, Epicriopsis Berlese, 1916, Hattena Domrow, 1963, Kleemannia Oudemans, 1930, Neocypholaelaps Vitzthum, 1942, Pseudoameroseius gen. n., Sertitympanum Elsen & Whitaker, 1985 and Sinoseius Bai & Gu, 1995. One of these genera includes subgenera, namely Kleemannia (Primoseius) Womersley, 1956. All genera are reviewed and re-diagnosed, and a dichotomous key is provided for their identification. Ameroseius (50 species), Kleemannia (28 species) and Neocypholaelaps (22 species) are the largest genera in the family. Ameroseiella, Kleemannia, Kleemannia (Primoseius) and Sinoseius are considered to be valid taxa and, in presented systematic classification, they are removed from synonymy with Ameroseius. The genus Pseudoameroseius gen. n., with type species Ameroseius michaelangeli Moraza, 2006 (from Canary Islands), is newly erected to further refine broad primary concept of Ameroseius as understood by some former authors (Karg, Bregetova). Asperolaelaps is removed from synonymy with Neocypholaelaps. Three new species are here described, namely Ameroseius renatae sp. n. (based on specimens from Slovakia), Kleemannia dolichochaeta sp. n. (from Spain) and Kleemannia miranda sp. n. (from U.S.A.). The following new junior synonymies are proposed: Ameroseius apodius Karg, 1971 = Ameroseiella macrochelae (Westerboer, 1963); Ameroseius bregetovae Livshits & Mitrofanov, 1975 = Neocypholaelaps favus Ishikawa, 1968; Ameroseius chinensis Khalili-Moghadam & Saboori, 2016 = Ameroseius guyimingi Ma, 1997; Ameroseius crassisetosus Ye & Ma, 1993, Ameroseius qinghaiensis Li & Yang, 2000 and Ameroseius norvegicus Narita, Abduch & Moraes, 2015 = Ameroseius corbiculus (Sowerby, 1806); Ameroseius dubitatus Berlese

  13. A revision of the family Ameroseiidae (Acari, Mesostigmata, with some data on Slovak fauna

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    Peter Mašán

    2017-09-01

    Full Text Available The family Ameroseiidae Evans, 1961 (Acari: Mesostigmata includes a total of 12 valid and adequately described genera, namely Afrocypholaelaps Elsen, 1972, Ameroseiella Bregetova, 1977, Ameroseius Berlese, 1904, Asperolaelaps Womersley, 1956, Brontispalaelaps Womersley, 1956, Epicriopsis Berlese, 1916, Hattena Domrow, 1963, Kleemannia Oudemans, 1930, Neocypholaelaps Vitzthum, 1942, Pseudoameroseius gen. n., Sertitympanum Elsen & Whitaker, 1985 and Sinoseius Bai & Gu, 1995. One of these genera includes subgenera, namely Kleemannia (Primoseius Womersley, 1956. All genera are reviewed and re-diagnosed, and a dichotomous key is provided for their identification. Ameroseius (50 species, Kleemannia (28 species and Neocypholaelaps (22 species are the largest genera in the family. Ameroseiella, Kleemannia, Kleemannia (Primoseius and Sinoseius are considered to be valid taxa and, in presented systematic classification, they are removed from synonymy with Ameroseius. The genus Pseudoameroseius gen. n., with type species Ameroseius michaelangeli Moraza, 2006 (from Canary Islands, is newly erected to further refine broad primary concept of Ameroseius as understood by some former authors (Karg, Bregetova. Asperolaelaps is removed from synonymy with Neocypholaelaps. Three new species are here described, namely Ameroseius renatae sp. n. (based on specimens from Slovakia, Kleemannia dolichochaeta sp. n. (from Spain and Kleemannia miranda sp. n. (from U.S.A.. The following new junior synonymies are proposed: Ameroseius apodius Karg, 1971 = Ameroseiella macrochelae (Westerboer, 1963; Ameroseius bregetovae Livshits & Mitrofanov, 1975 = Neocypholaelaps favus Ishikawa, 1968; Ameroseius chinensis Khalili-Moghadam & Saboori, 2016 = Ameroseius guyimingi Ma, 1997; Ameroseius crassisetosus Ye & Ma, 1993, Ameroseius qinghaiensis Li & Yang, 2000 and Ameroseius norvegicus Narita, Abduch & Moraes, 2015 = Ameroseius corbiculus (Sowerby, 1806; Ameroseius dubitatus Berlese

  14. Efeito da solarização e da adubação sobre artrópodes em solo cultivado com alface Solarization, organic and chemical fertilization combined effects on arthropods community in soil cultivated with lettuce

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    Marlene G da Silva

    2009-12-01

    Full Text Available Avaliou-se o efeito da solarização e da adubação química e orgânica na comunidade de artrópodes de solo na cultura da alface, cv. Verônica. Foram conduzidos dois experimentos, em blocos ao acaso, um com solarização e o outro sem solarização, em casa de vegetação, ambos com cinco tratamentos: adubação orgânica; nitrogênio na forma amoniacal (NH4; adubação com NPK; adubação orgânica + NPK; testemunha (sem adubação. No experimento solarizado, o solo foi coberto durante 132 dias com plástico transparente. Os artrópodes foram coletados por meio de armadilhas tipo alçapão em três épocas (antes da implantação do experimento, após a solarização e após a colheita. Foram utilizados índices faunísticos e de diversidade em cada experimento, tratamento e épocas. Os principais grupos coletados foram: Collembola (82,8%, Acari (7,1%, Hymenoptera (6,1% Coleoptera (1,3% e outros (2,7%. A classe Collembola foi a mais abundante, mesmo na colheita, quando a subordem Acari aumentou substancialmente. As espécies de Collembola predominantes foram: Proisotoma tenella (Reuter (34,3%; Seira atrolutea (Arlé (29%; Folsomides centralis (Denis (7,2%; Isotomurus sp. 161 (2,4% e Sminthurides sp. 98 (1,6%. Observou-se que a diversidade e abundância da comunidade de artrópodes não foi influenciada pela solarização ou adubação.To evaluate the effect of solarization, chemical and organic fertilization on soil arthropods community in lettuce, two blocks plots trials were carried out in Brasília, Brazil. One research was conducted with solarization and the other without solarization in a soil cultivated with lettuce, cv Veronica, under protected cultivation. Each trial consisted of five fertilization treatments: T1= organic fertilization; T2= amoniacal nitrogen (ammonium sulphate; T3= chemical fertilization; T4= organic and chemical fertilization; T5= control (without fertilization. In the solarized trial, the soil was covered for 132

  15. Synthesis, Crystal Structure and Luminescent Property of Cd (II Complex with <em>N-Benzenesulphonyl-L>-leucine

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    Xishi Tai

    2012-09-01

    Full Text Available A new trinuclear Cd (II complex [Cd3(L6(2,2-bipyridine3] [L =<em> Nem>-phenylsulfonyl-L>-leucinato] has been synthesized and characterized by elemental analysis, IR and X-ray single crystal diffraction analysis. The results show that the complex belongs to the orthorhombic, space group<em> Pem>212121 with<em> aem> = 16.877(3 Å, <em>b> em>= 22.875(5 Å, <em>c em>= 29.495(6 Å, <em>α> em>= <emem>= <emem>= 90°, <em>V> em>= 11387(4 Å3, <em>Z> em>= 4, <em>Dc>= 1.416 μg·m−3, <emem>= 0.737 mm−1, <em>F> em>(000 = 4992, and final <em>R>1 = 0.0390, <em>ωR>2 = 0.0989. The complex comprises two seven-coordinated Cd (II atoms, with a N2O5 distorted pengonal bipyramidal coordination environment and a six-coordinated Cd (II atom, with a N2O4 distorted octahedral coordination environment. The molecules form one dimensional chain structure by the interaction of bridged carboxylato groups, hydrogen bonds and p-p interaction of 2,2-bipyridine. The luminescent properties of the Cd (II complex and <em>N-Benzenesulphonyl-L>-leucine in solid and in CH3OH solution also have been investigated.

  16. Influence of the webbing produced by Oligonychus ilicis (McGregor) (Acari: Tetranychidae) on associated predatory phytoseiids; Influencia da teia de Oligonychus ilicis (McGregor) (Acari: Tetranychidae) sobre os fitoseideos predadores associados

    Energy Technology Data Exchange (ETDEWEB)

    Franco, Renato A. [Bioagri Laboratorios Ltda., Piracicaba, SP (Brazil)], e-mail: r.franco@bioagri.com.br; Reis, Paulo R. [Empresa de Pesquisa Agropecuaria de Minas Gerais (EPAMIG), Belo Horizonte, MG (Brazil). Ecocentro], e-mail: paulo.rebelles@epamig.ufla.br; Zacarias, Mauricio S. [EMBRAPA Cafe, Lavras, MG (Brazil)], e-mail: zacarias@epamig.ufla.br; Oliveira, Daniel C. [Universidade Federal de Lavras (UFLA), MG (Brazil)

    2010-01-15

    Oligonychus ilicis (McGregor) is among those mite species that can cause damage to coffee plants (Coffea spp.). Species of Phytoseiidae acari are considered the most important and studied predatory mites. The objective of this study was to evaluate the effects of the webbing produced by O. ilicis on its predation by females of the phytoseiids Iphiseiodes zuluagai Denmark and Muma, Euseius citrifolius Denmark and Muma and Amblyseius herbicolus (Chant). Four bioassays were conducted, with three treatments and ten replicates. Each replicate consisted of 25 O. ilicis per experimental unit (a leaf disc of Coffea arabica) according to the tested developmental stage, in independent experiments. To spin the web, 15 adult females were put on each experimental unit for 24h; females were then removed, leaving only the web, and predators and prey to be tested were introduced. Predation was assessed after 24h. In the presence of webbing, the consumption of eggs, larvae and nymphs by I. zuluagai and eggs and larvae by E. citrifolius was lower. For A. herbicolus, egg predation was lower, but larval predation did not vary significantly and predation of nymphs and adults was higher in the presence of webbing. Predators as a whole were more efficient consuming larvae regardless of the presence of webbing. Considering the stages of O. ilicis altogether, webbing reduced the predation potential of I. zuluagai and E. citrifolius, but not of A. herbicolus. (author)

  17. Ritmo de queda de Rhipicephalus sanguineus (Acari: Ixodidae de cães artificialmente infestados Drop off rhythm of Rhipicephalus sanguineus (Acari: Ixodidae of artificially infested dogs

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    Gustavo F. Paz

    2008-09-01

    Full Text Available O ritmo de queda de Rhipicephalus sanguineus (Latreille foi avaliado para duas populações do Brasil; uma de Monte Negro, Estado de Rondônia, e outra de Belo Horizonte, Estado de Minas Gerais. Infestações artificiais com carrapatos das duas populações foram realizadas em cães domésticos mantidos em laboratório, sob o regime de luz: escotofase de 12:12 h. O padrão de queda de larvas ingurgitadas do hospedeiro se caracterizou pelo desprendimento de quantidades semelhantes de carrapatos em períodos de luz e de escotofase ou com um predomínio de queda durante o período de luz. No caso de ninfas e fêmeas ingurgitadas, a maioria dos carrapatos se desprendeu dos cães durante o período de escotofase, em todos os casos observados. Desta forma, é possível que em condições naturais, a maioria das ninfas e fêmeas adultas de R. sanguineus tendem a se desprender dos cães durante o período noturno, ao passo que larvas ingurgitadas se desprendem em proporções maiores durante o período diurno. Com base nestes dados, sugere-se que os locais onde os cães freqüentam durante a noite (onde possivelmente estará a maior parte da população de vida livre de R. sanguineus sejam priorizados com os tratamentos ambientais utilizando-se produtos carrapaticidas.The present study evaluated the drop-off rhythm of Rhipicephalus sanguineus (Latreille ticks from two populations from Brazil, one from Monte Negro, state of Rondônia, and another from Belo Horizonte, state of Minas Gerais. Artificial infestations with ticks were performed on dogs in the laboratory, held in a light: scotophase regimen of 12:12 h. Larval drop-off rhythm was characterized by similar number of engorged larvae detaching during both periods of light and scotophase, or by a larger number of larvae detaching during the light period. In contrast, most of the engorged nymphs and females detached from dogs during the scotophase period. These results indicate that under natural

  18. Fitoseídeos (Acari: Phytoseiidae associados a cafezais e fragmentos florestais vizinhos Phytoseiids (Acari: Phytoseiidae associated to coffee plantations and adjacent forest fragments

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    Ester Azevedo Silva

    2010-10-01

    Full Text Available Existem poucas informações sobre a fauna de ácaros predadores (Phytoseiidae em ambientes naturais brasileiros adjacentes a agroecossistemas cafeeiros (Coffea spp. ou sobre a influência que essa vegetação exerce como reservatório de ácaros predadores. Neste estudo, objetivou-se avaliar a diversidade destes organismos em cafeeiros e fragmentos florestais adjacentes. Coletaram-se amostras das espécies Calyptranthes clusiifolia (Miq. O. Berg (Myrtaceae, Esenbeckia febrifuga (A. St.-Hil. A. Juss. ex Mart. (Rutaceae, Metrodorea stipularis Mart. (Rutaceae e Allophylus semidentatus (Miq. Radlk. (Sapindaceae, em oito fragmentos florestais, de 5 a 51 ha, e cafezais adjacentes, nos meses de junho (final período chuvoso e outubro (final período seco nos anos 2004 e 2005, na região Sul do Estado de Minas Gerais. Ácaros foram extraídos das folhas, utilizando o método de lavagem e, em seguida, montados em lâminas de microscopia em meio de Hoyer, para identificação específica. No total foram identificados 2.348 fitoseídeos, sendo 2.090 nos fragmentos florestais e 258 espécimes nos cafezais adjacentes, pertencentes a 38 espécies. Servindo-se de análise faunística, a espécie Iphiseiodes zuluagai Denmark & Muma, 1972 apresentou os melhores índices no agroecossistema cafeeiro, sendo muito frequente e constante nas épocas estudadas. Nos fragmentos florestais Amblyseius herbicolus Chant, 1959, Iphiseiodes affs. neonobilis Denmark & Muma, 1978, Leonseius regularis DeLeon, 1965 e Euseius alatus DeLeon, 1966 foram dominantes, muito abundantes, muito frequentes e constantes nas épocas estudadas. Podemos concluir que a vegetação nativa abriga ácaros predadores, inimigos naturais de ácaros-praga, que ocorrem na cultura cafeeira, possibilitando o desenvolvimento de programas de manejo ecológico com áreas de vegetação natural e agroecossistemas cafeeiros adjacentes.There is little information about the fauna of predatory mites

  19. Air temperature optimisation for humidity-controlled cold storage of the predatory mites Neoseiulus californicus and Phytoseiulus persimilis (Acari: Phytoseiidae).

    Science.gov (United States)

    Ghazy, Noureldin Abuelfadl; Suzuki, Takeshi; Amano, Hiroshi; Ohyama, Katsumi

    2014-03-01

    Humidity-controlled cold storage, in which the water vapour pressure is saturated, can prolong the survival of the predatory mites Neoseiulus californicus (McGregor) and Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae). However, information on the optimum air temperature for long-term storage by this method is limited. The authors evaluated the survival of mated adult females of N. californicus and P. persimilis at 5.0, 7.5, 10.0 and 12.5 °C under saturated water vapour condition (vapour pressure deficit 0.0 kPa). N. californicus showed a longer survival time than P. persimilis at all the air temperatures. The longest mean survival time of N. californicus was 11 weeks at 7.5 °C, whereas that of P. persimilis was 8 weeks at 5.0 °C. After storage at 7.5 °C for 8 weeks, no negative effect on post-storage oviposition was observed in N. californicus, whereas the oviposition of P. persimilis stored at 5.0 °C for 8 weeks was significantly reduced. The interspecific variation in the response of these predators to low air temperature might be attributed to their natural habitat and energy requirements. These results may be useful for the long-term storage of these predators, which is required for cost-effective biological control. © 2013 Society of Chemical Industry.

  20. Transcriptome Analysis of the Carmine Spider Mite, Tetranychus cinnabarinus (Boisduval, 1867 (Acari: Tetranychidae, and Its Response to β-Sitosterol

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    Chunya Bu

    2015-01-01

    Full Text Available Tetranychus cinnabarinus (Acari: Tetranychidae is a worldwide polyphagous agricultural pest that has the title of resistance champion among arthropods. We reported previously the identification of the acaricidal compound β-sitosterol from Mentha piperita and Inula japonica. However, the acaricidal mechanism of β-sitosterol is unclear. Due to the limited genetic research carried out, we de novo assembled the transcriptome of T. cinnabarinus using Illumina sequencing and conducted a differential expression analysis of control and β-sitosterol-treated mites. In total, we obtained >5.4 G high-quality bases for each sample with unprecedented sequencing depth and assembled them into 22,941 unigenes. We identified 617 xenobiotic metabolism-related genes involved in detoxification, binding, and transporting of xenobiotics. A highly expanded xenobiotic metabolic system was found in mites. T. cinnabarinus detoxification genes—including carboxyl/cholinesterase and ABC transporter class C—were upregulated after β-sitosterol treatment. Defense-related proteins, such as Toll-like receptor, legumain, and serine proteases, were also activated. Furthermore, other important genes—such as the chloride channel protein, cytochrome b, carboxypeptidase, peritrophic membrane chitin binding protein, and calphostin—may also play important roles in mites’ response to β-sitosterol. Our results demonstrate that high-throughput-omics tool facilitates identification of xenobiotic metabolism-related genes and illustration of the acaricidal mechanisms of β-sitosterol.

  1. Influence of the webbing produced by Oligonychus ilicis (McGregor) (Acari: Tetranychidae) on associated predatory phytoseiids

    International Nuclear Information System (INIS)

    Franco, Renato A.; Reis, Paulo R.; Oliveira, Daniel C.

    2010-01-01

    Oligonychus ilicis (McGregor) is among those mite species that can cause damage to coffee plants (Coffea spp.). Species of Phytoseiidae acari are considered the most important and studied predatory mites. The objective of this study was to evaluate the effects of the webbing produced by O. ilicis on its predation by females of the phytoseiids Iphiseiodes zuluagai Denmark and Muma, Euseius citrifolius Denmark and Muma and Amblyseius herbicolus (Chant). Four bioassays were conducted, with three treatments and ten replicates. Each replicate consisted of 25 O. ilicis per experimental unit (a leaf disc of Coffea arabica) according to the tested developmental stage, in independent experiments. To spin the web, 15 adult females were put on each experimental unit for 24h; females were then removed, leaving only the web, and predators and prey to be tested were introduced. Predation was assessed after 24h. In the presence of webbing, the consumption of eggs, larvae and nymphs by I. zuluagai and eggs and larvae by E. citrifolius was lower. For A. herbicolus, egg predation was lower, but larval predation did not vary significantly and predation of nymphs and adults was higher in the presence of webbing. Predators as a whole were more efficient consuming larvae regardless of the presence of webbing. Considering the stages of O. ilicis altogether, webbing reduced the predation potential of I. zuluagai and E. citrifolius, but not of A. herbicolus. (author)

  2. Laboratory evaluation of a native strain of Beauveria bassiana for controlling Dermanyssus gallinae (De Geer, 1778) (Acari: Dermanyssidae).

    Science.gov (United States)

    Immediato, Davide; Camarda, Antonio; Iatta, Roberta; Puttilli, Maria Rita; Ramos, Rafael Antonio Nascimento; Di Paola, Giancarlo; Giangaspero, Annunziata; Otranto, Domenico; Cafarchia, Claudia

    2015-09-15

    The poultry red mite, Dermanyssus gallinae (De Geer, 1778) (Acari: Dermanyssidae) is one of the most economically important ectoparasites of laying hens worldwide. Chemical control of this mite may result in environmental and food contamination, as well as the development of drug resistance. High virulence of Beauveria bassiana sensu lato strains isolated from naturally infected hosts or from their environment has been demonstrated toward many arthropod species, including ticks. However, a limited number of studies have assessed the use of B. bassiana for the control of D. gallinae s.l. and none of them have employed native strains. This study reports the pathogenicity of a native strain of B. bassiana (CD1123) against nymphs and adults of D. gallinae. Batches of nymph and adult mites (i.e., n=720 for each stage) for treated groups (TGs) were placed on paper soaked with a 0.1% tween 80 suspension of B. bassiana (CIS, 10(5), 10(7) and 10(9) conidia/ml), whilst 240 untreated control mites for each stage (CG) were exposed only to 0.1% tween 80. The mites in TG showed a higher mortality at all stages (pbassiana suspension containing 10(9) conidia/ml was highly virulent towards nymph and adult stages of D. gallinae, therefore representing a possible promising natural product to be used in alternative or in combination to other acaricidal compounds currently used for controlling the red mite. Copyright © 2015 Elsevier B.V. All rights reserved.

  3. Impact of ectohumus application in birch and pine nurseries on the presence of soil mites (Acari, Oribatida in particular

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    Klimek Andrzej

    2016-03-01

    Full Text Available Intensively used forest nurseries are characterised by degradation processes that lead to a drop in the quality of seedlings. The main reason of this problem is a decrease in biological soil diversity. Therefore, an attempt of nursery soil enrichment by introducing ectohumus – as compost and fresh litter – from the pine forest was carried out. The research was carried out in 2009–2011 in the Bielawy forest nursery near the city of Toruń, Poland. The objective of the study was to determine the impact of organic fertilisation (compost made up of forest humus and mulching using fresh ectohumus on the density and community composition of Acari mites and on species composition of oribatid mites (Oribatida in the nurseries of silver birch and Scots pine. Mites, especially oribatid mites, were treated as bioindicators of soil biological activity. Research has shown that mulching using fresh ectohumus caused a multiple increase in the density of mites, especially in saprophagous mites Oribatida. Oribatid mites were clearly more numerous in birch cultivation than in that of pine. Overall, 27 species of oribatid mites were found. Mulching resulted in a significant growth in species diversity in both cultivations. The most numerous oribatid mite in the area under the study was Oribatula tibialis. This species was present in all plots and showed clear preference for birch cultivation. Tectocepheus velatus and Oppiella nova, common and known to be present in a variety of environments, were slightly less numerous.

  4. Compatibility of reduced-risk insecticides with the non-target predatory mite Iphiseius degenerans (Acari: Phytoseiidae).

    Science.gov (United States)

    Döker, İsmail; Pappas, Maria L; Samaras, Konstantinos; Triantafyllou, Anneta; Kazak, Cengiz; Broufas, George D

    2015-09-01

    Iphiseius degenerans (Berlese) (Acari: Phytoseiidae) is a common predatory mite in citrus orchards in some areas of the Mediterranean basin and an important biological control agent of the thrips Frankliniella occidentalis (Pergande) in Integrated Pest Management (IPM) programmes in greenhouse crops. In this study, we evaluated the effects of the 'reduced-risk' insecticides acetamiprid, chlorantraniliprole, flubendiamide, metaflumizone, methoxyfenozide, spinetoram and thiamethoxam on I. degenerans, as a means of testing their compatibility in IPM programmes. Although all pesticides decreased immature survival, high mortality was only recorded for young larvae when exposed to acetamiprid, while metaflumizone, thiamethoxam and spinetoram resulted in intermediate lethal effects. The estimated LC50 values of acetamiprid, spinetoram and thiamethoxam for I. degenerans females were 0.52, 0.84 and 0.16-fold lower than the respective maximum recommended doses of the pesticides for field application. Although all pesticides tested significantly decreased fecundity, highest rates corresponded to the three pesticides already mentioned. Chlorantraniliprole, flubendiamide and methoxyfenozide may preliminarily be included in IPM programmes, whereas the effects of acetamiprid, metaflumizone, spinetoram and thiamethoxam on I. degenerans should be clarified in further field toxicological tests. This information could be useful for rationally planning and implementing pest management on a sustainable basis. © 2014 Society of Chemical Industry.

  5. Community structure variability of Uropodina mites (Acari: Mesostigmata) in nests of the common mole, Talpa europaea, in Central Europe.

    Science.gov (United States)

    Napierała, Agnieszka; Mądra, Anna; Leszczyńska-Deja, Kornelia; Gwiazdowicz, Dariusz J; Gołdyn, Bartłomiej; Błoszyk, Jerzy

    2016-04-01

    Underground nests of Talpa europaea, known as the common mole, are very specific microhabitats, which are also quite often inhabited by various groups of arthropods. Mites from the suborder Uropodina (Acari: Mesostigmata) are only one of them. One could expect that mole nests that are closely located are inhabited by communities of arthropods with similar species composition and structure. However, results of empirical studies clearly show that even nests which are close to each other can be different both in terms of the species composition and abundance of Uropodina communities. So far, little is known about the factors that can cause these differences. The major aim of this study was to identify factors determining species composition, abundance, and community structure of Uropodina communities in mole nests. The study is based on material collected during a long-term investigation conducted in western parts of Poland. The results indicate that the two most important factors influencing species composition and abundance of Uropodina communities in mole nests are nest-building material and depth at which nests are located. Composition of Uropodina communities in nests of moles was also compared with that of other microhabitats (e.g. rotten wood, forest litter, soil) based on data from 4421 samples collected in Poland. Communities of this habitat prove most similar to these of open areas, especially meadows, as well as some forest types.

  6. The international trade in reptiles (Reptilia)--the cause of the transfer of exotic ticks (Acari: Ixodida) to Poland.

    Science.gov (United States)

    Nowak, Magdalena

    2010-05-11

    The problem of the unnatural transfer of exotic ticks (Acari: Ixodida) on reptiles (Reptilia) imported to Poland is presented. In the period from 2003 to 2007, 382 specimens of reptiles belonging to the following genera were investigated: Testudo, Iguana, Varanus, Gongylophis, Python, Spalerosophis, Psammophis. The reptiles most infested with ticks are imported to Poland from Ghana in Africa, and are the commonly bred terrarium reptiles: Varanus exanthematicus and Python regius. As a result of the investigations, the transfer of exotic ticks on reptiles to Poland was confirmed. There were 2104 specimens of the genera Amblyomma and Hyalomma. The following species were found: Amblyomma exornatum Koch, 1844, Amblyomma flavomaculatum (Lucas, 1846), Amblyomma latum Koch, 1844, Amblyomma nuttalli Donitz, 1909, Amblyomma quadricavum (Schulze, 1941), Amblyomma transversale (Lucas, 1844), Amblyomma varanense (Supino, 1897), Amblyomma sp. Koch, 1844, Hyalomma aegyptium (Linnaeus, 1758). All the species of ticks of genus Amblyomma revealed have been discovered in Poland for the first time. During the research, 13 cases of anomalies of morphological structure were confirmed in the ticks A. flavomaculatum, A. latum and H. aegyptium. The expanding phenomenon of the import of exotic reptiles in Poland and Central Europe is important for parasitological and epidemiological considerations, and therefore requires monitoring and wide-ranging prophylactic activities to prevent the inflow of exotic parasites to Poland. (c) 2010 Elsevier B.V. All rights reserved.

  7. Development and reproductive potential of Tyrophagus putrescentiae (Acari: Acaridae) on plant-parasitic nematodes and artificial diets.

    Science.gov (United States)

    Abou El-Atta, Doaa Abd El-Maksoud; Osman, Mohamed Ali

    2016-04-01

    This study investigated development, reproduction and life table parameters of the astigmatid mold mite Tyrophagus putrescentiae (Schrank) (Acari: Acaridae) feeding on egg-masses or adult females of the nematode Meloidogyne incognita, egg-masses of the nematode Rotylenchulus reniformis, ras cheese or yeast at 25 ± 1 °C, 70 ± 10 % RH in the dark. Immature developmental times were shorter when the mite was fed females of M. incognita followed by yeast. Different prey/diet types had no significant effect on longevity and lifespan of both males and females. Daily oviposition rate (eggs/female/day) was highest for mites fed yeast (20.8 ± 1.8 eggs) and lowest for mites fed females of M. incognita (6.6 ± 0.5). Intrinsic rate of natural increase (r m) was highest for mites fed yeast compared to other prey/diet; no significant differences in r m were observed among mites fed on non-yeast diets. This result may suggest a role of T. putrescentiae as biocontrol agent of plant-parasitic nematodes and the yeast may be used for mite mass-production purposes.

  8. Regional factors rather than forest type drive the community structure of soil living oribatid mites (Acari, Oribatida).

    Science.gov (United States)

    Erdmann, Georgia; Scheu, Stefan; Maraun, Mark

    2012-06-01

    Most European forests are managed by humans. However, the manner and intensity of management vary. While the effect of forest management on above-ground communities has been investigated in detail, effects on the below-ground fauna remain poorly understood. Oribatid mites are abundant microarthropods in forest soil and important decomposers in terrestrial ecosystems. Here, we investigated the effect of four forest types (i.e., managed coniferous forests; 30 and 70 years old managed beech forests; natural beech forests) on the density, diversity and community structure of oribatid mites (Acari). The study was replicated at three regions in Germany: the Swabian Alb, the Hainich and the Schorfheide. To relate changes in oribatid mite community structure to environmental factors, litter mass, pH, C and N content of litter, fine roots and C content of soil were measured. Density of oribatid mites was highest in the coniferous forests and decreased in the order 30 years old, 70 years old, and natural beech forests. Mass of the litter layer and density of oribatid mites were strongly correlated indicating that the litter layer is an important factor regulating oribatid mite densities. Diversity of oribatid mites was little affected by forest type indicating that they harbor similar numbers of niches. Species composition differed between the forest types, suggesting different types of niches. The community structure of oribatid mites differed more strongly between the three regions than between the forest types indicating that regional factors are more important than effects associated with forest type.

  9. Efficacy of plant-derived and synthetic compounds on clothing as repellents against Ixodes scapularis and Amblyomma americanum (Acari: Ixodidae).

    Science.gov (United States)

    Jordan, Robert A; Schulze, Terry L; Dolan, Marc C

    2012-01-01

    We conducted field trials to compare the relative repellent activity of two natural product compounds (nootkatone and carvacrol) with commercially available plant-derived (EcoSMART organic insect repellent) and permethrin-based (Repel Permanone) repellents against adult Ixodes scapularis Say and Amblyomma americanum (L.) (Acari: Ixodidae) by using treated coveralls. One day after treatment, nootkatone and carvacrol provided 100% repellency of I. scapularis adults, with nootkatone maintaining complete protection through 3 d, whereas carvacrol showed steadily declining repellency against I. scapularis during the 7-d course of the trials. Nootkatone was at least as effective against host-seeking A. americanum as against I. scapularis through 3 d. Carvacrol provided little protection against A. americanum adults. Both natural compounds performed well initially in comparison with the commercial products. After 7 d, nootkatone was the most effective against both species followed in order of activity by Permanone, EcoSMART, and carvacrol. Nootkatone seems to have offer considerable potential as a clothing repellent against both I. scapularis and A. americanum.

  10. Efeitos do nim sobre tetranychus urticae Koch (Acari: Tetranychidae e os predadores Phytoseiulus macropilis (Banks e Neoseiulus californicus (Mcgregor (Acari: Phytoseiidae

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    Daniele Cristine Hoffmann Schlesener

    2013-03-01

    Full Text Available O objetivo deste trabalho foi avaliar a eficiência de controle e os efeitos adversos de dois produtos à base de nim Azamax® (Azadiractina A/B 12g/L e Neemseto® (Azadiractina A/B, Nimbina e Salanina 2,389 g/L sobre o ácaro-rajado Tetranychus urticae e os predadores Phytoseiulus macropilis e Neoseiulus californicus em laboratório. Para o ácaro-rajado, foram consideradas as variáveis mortalidade, fecundidade, efeito ovicida e persistência biológica, enquanto para os fitoseídeos consideraram-se mortalidade e fecundidade. A mortalidade máxima observada para o ácaro-rajado foi de 89,7% e 91,5% para Azamax® e Neemseto®, respectivamente, na concentração de 0,5% após a reaplicação do produto no sétimo dia. Também foram observados efeitos adversos sobre a fecundidade e a viabilidade dos ovos quando tratados com os produtos comerciais (p.c.. A persistência biológica dos produtos foi de aproximadamente três dias após a pulverização. As formulações apresentaram seletividade em relação aos fitoseídeos, porém causaram redução da fecundidade dos mesmos.

  11. First record of Ophionyssus natricis (Gervais (Acari: Macronyssidae on Python reticulatus (Schneider (Pythonidae in Brazil

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    Ademar da Silva

    2018-04-01

    Resumo. Ophionyssus natricis (Gervais frequentemente parasita cobras mantidas sob cuidados humanos. Este ácaro é conhecido por transmitir mecanicamente a bactéria Proteus hydrophilus, que pode causar sepse hemorrágica em cobras. Este é o primeiro registro O. natricis em Python reticulatus (Schneider coletados em cativeiro, no Brasil. O estudo foi realizado com o auxílio de microscopia óptica e observações de MEV, gerando desenhos e micrografias, o que permitiu observar importantes características de identificação da fêmea de O. natricis: superfície dorsal com dois escudos, consistindo em propodossoma e pigidial, já a superfície ventral possui apenas o escudo esternal com forma trapezoidal, com dois pares de cerdas e poros na borda. A identificação das fêmeas adultas de O. natricis coletados em P. reticulatus mantidas sob cuidados humanos no Brasil, fornece informações anatômicas adicionais para ajudar na identificação da espécie fornecendo mais informações necessárias na compreensão da morfologia dos ácaros das cobras.

  12. Life history of Neoseiulus californicus (McGregor, 1954 (Acari: Phytoseiidae fed with castor bean (Ricinus communisL. pollen in laboratory conditions

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    PP Marafeli

    Full Text Available The predatory mite, Neoseiulus californicus(McGregor, 1954 (Acari: Phytoseiidae is one of the principal natural enemies of tetranychid mites in several countries, promoting efficient control of those mites in several food and ornamental crops. Pest attacks such as that of the spider mite, Tetranychus urticaeKoch, 1836 (Acari: Tetranychidae, is one of the problems faced by farmers, especially in the greenhouse, due to the difficulty of its control with the use of chemicals because of the development of fast resistance making it hard to control it. The objective of this work was to study the life history of the predatory mite N. californicus as a contribution to its mass laboratory rearing, having castor bean plant [Ricinus communis L. (Euphorbiaceae] pollen as food, for its subsequent use as a natural enemy of T. urticae on a cultivation of greenhouse rosebushes. The studies were carried out in the laboratory, at 25 ± 2°C of temperature, 70 ± 10% RH and a 14 hour photophase. The biological aspects and the fertility life table were appraised. Longevity of 32.9 days was verified for adult females and 40.4 days for males. The intrinsic rate of increase (rm was 0.2 and the mean generation time (T was 17.2 days. The population doubled every 4.1 days. The results obtained were similar to those in which the predatory mite N. californicus fed on T. urticae.

  13. Ácaros predadores (Acari em plantas nativas e cultivadas do Estado do Rio Grande do Sul, Brasil Predators mites (Acari in native and cultivated plants of the State of Rio Grande do Sul, Brazil

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    Noeli Juarez Ferla

    2002-12-01

    Full Text Available This research was carried out in twenty counties of the following regions in the state of Rio Grande do Sul: Plain, Central Depression, Plateau and Coast Plain to find out the diversity of mite predators in these places. Forty-six vegetable species were sampled, thirty species of miles of the families Anystidae, Ascidae, Cheyletidae, Cunaxidae, Phyloseiidae and Stigmaeidae were mel. The Phytoseiidae were the mite that presented the greatest diversity, being present in the majority of the sample plants. Most of the Phytoseiidae that were met belong to five species of the Euseius Wainstein, 1962 genus, the second genus of this family was Iphiseiodes DeLeon, 1966, with just one species. The Stigmaeidae come up as second family in number but fewer than Phytoseiidae. In this family, the most common mite belong to the Agistemus Sumers, 1960 genus. The biggest of the mites species (13 species, was met in Morus spp. (Moraceae and Tabebuia spp. (Bignoniaceae; Phaseolus vulgaris (Papilionaceae; only one species of the mite was met in Campomanesia spp. (Myrtaceae, Phaseolus vulgaris (Papilionaceae and Rosa spp. (Rosaceae. In Alamanda spp.(Apocinaceae, Ficus spp. (Moraceae, Jacaranda mimosifolia (Bignoniaceae and Solanum spp. (Solanaceae were met mites predators. A dichotomic key is presented to separate the families, genus and species of the mites.

  14. Standardization of a rearing procedure of Tetranychus urticae Koch (Acari: Tetranychidae) on bean (Phaseolus vulgaris): plant age and harvest time; Padronizacao da criacao de Tetranychus urticae Koch (Acari: Tetranychidae) em feijoeiro (Phaseolus vulgaris): idade da planta e tempo de colheita

    Energy Technology Data Exchange (ETDEWEB)

    Bustos, Alexander; Cantor, Fernando; Cure, Jose R; Rodriguez, Daniel [Universidade Militar Nueva Granada, Bogota (Colombia). Facutad de Ciencias. Programa de Biologia Aplicada], e-mail: fernando.cantor@unimilitar.edu.co

    2009-09-15

    A rearing technique was standardized to produce Tetranychus urticae Koch on Phaseolus vulgaris (ICA Cerinza variety) as a prey of the predatory mite Phytoseiulus persimilis Athias-Henriot. Two assays were conducted to assess the following variables: the most suitable plant age for mite infestation, and the best time to harvest the mites and re infest the plants. In the first experiment, four, five, six, and seven-week-old plants of P. vulgaris were infested with six T. urticae per foliole. The lower plant stratum exhibited the largest number of mites regardless of plant age. However, four-week old plants had the larger average number of individuals. In the second experiment four-week-old plants were infested with 0.5 female mite/cm{sup 2} of leaf. The number of individuals per instar of T. urticae was recorded weekly. The highest mite production occurred between four and five weeks after infestation, indicating this to be the most suitable for mite harvesting and for plant reinfestation. (author)

  15. Neonatal Phosphate Nutrition Alters <em>in em>Vivo> and <em>in em>Vitro> Satellite Cell Activity in Pigs

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    Chad H. Stahl

    2012-05-01

    Full Text Available Satellite cell activity is necessary for postnatal skeletal muscle growth. Severe phosphate (PO4 deficiency can alter satellite cell activity, however the role of neonatal PO4 nutrition on satellite cell biology remains obscure. Twenty-one piglets (1 day of age, 1.8 ± 0.2 kg BW were pair-fed liquid diets that were either PO4 adequate (0.9% total P, supra-adequate (1.2% total P in PO4 requirement or deficient (0.7% total P in PO4 content for 12 days. Body weight was recorded daily and blood samples collected every 6 days. At day 12, pigs were orally dosed with BrdU and 12 h later, satellite cells were isolated. Satellite cells were also cultured <em>in vitroem> for 7 days to determine if PO4 nutrition alters their ability to proceed through their myogenic lineage. Dietary PO4 deficiency resulted in reduced (<em>P> < 0.05 sera PO4 and parathyroid hormone (PTH concentrations, while supra-adequate dietary PO4 improved (<em>P> < 0.05 feed conversion efficiency as compared to the PO4 adequate group. <em>In vivoem> satellite cell proliferation was reduced (<em>P> < 0.05 among the PO4 deficient pigs, and these cells had altered <em>in vitroem> expression of markers of myogenic progression. Further work to better understand early nutritional programming of satellite cells and the potential benefits of emphasizing early PO4 nutrition for future lean growth potential is warranted.

  16. Suscetibilidade de Oligonychus yothersi (Acari: Tetranychidae ao fungo Beauveria bassiana Susceptibility of Oligonychus yothersi (Acari: Tetranychidae to the fungus Beauveria bassiana

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    Renato Cassol de Oliveira

    2002-03-01

    Full Text Available A cultura da erva-mate (Ilex paraguariensis é uma importante atividade econômica no Sul do Brasil. Com o aumento de consumo nos anos oitenta, cresceram também as áreas de monocultura, gerando condições favoráveis para o aumento populacional de insetos e ácaros fitófagos, entre eles o ácaro vermelho Oligonychus yothersi. Este estudo avaliou a suscetibilidade do ácaro vermelho O. yothersi a vários isolados do fungo Beauveria bassiana. O experimento foi conduzido em Cascavel, PR. Discos foliares de erva-mate (2,2 cm² foram previamente infestados com 20 fêmeas adultas. Alíquotas de 1 mL de cada suspensão de conídios dos diferentes isolados de B. bassiana, ajustadas na concentração de 1,0x10(8 conídios mL-1 foram pulverizadas, separadamente, sobre um conjunto de 5 discos. Os discos foliares foram mantidos flutuando em água destilada, em caixas plásticas (3 cm de diâmetro, sob condições controladas. Diariamente, os ácaros mortos foram transferidos para câmara úmida, para confirmação de mortalidade causada pelo fungo. A mortalidade total variou entre 77 e 98% (6 dias após a aplicação, não permitindo diferenciar os isolados quanto à virulência (P>0,05. Já a mortalidade confirmada variou entre 19 e 75%, permitindo diferenciá-los (PThe Paraguay tea (Ilex paraguariensis crop is an important economical activity in Southern Brazil. With the increase of tea consumption in the 80s, the number of monoculture crops also increased, creating favorable conditions for the development of phytophagous insect and mite populations, such as the red mite Oligonychus yothersi. The objective of this study was to evaluate the susceptibility of the red mite O. yothersi to the several strains of the Beauveria bassiana fungus. The experiments were carried out in Cascavel, PR, Brazil. Leaf disks of Paraguay tea (2.2 cm² were previously infested with 20 adult females. Five disks were inoculated with 1 mL of each conidial suspension of B

  17. New records of water mites of the family Torrenticolidae (Acari, Hydrachnidia) with descriptions of two new species from Nanshih River system in Taiwan and redescription of Torrenticola ussuriensis (Sokolow, 1940) from the Russian Far East

    Science.gov (United States)

    Pešić, Vladimir; Semenchenko, Ksenia A.; Chatterjee, Tapas; Yam, Rita S.W.; Chan, Benny K.K.

    2011-01-01

    Abstract New records of torrenticolid water mites (Acari: Hydrachnidia, Torrenticolidae) from Nanshih River, Taiwan, are presented. Two new species are described: Torrenticola nanshihensis and Torrenticola taiwanicus; the latter species is compared with Torrenticola ussuriensis (Sokolow, 1940), a poorly known species which is re-described based on a new material from the Russian Far East; Monatractides cf. circuloides (Halík, 1930)is reported for the first time for Taiwan. PMID:21998497

  18. Constituents from <em>Vigna em>vexillata> and Their Anti-Inflammatory Activity

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    Guo-Feng Chen

    2012-08-01

    Full Text Available The seeds of <em>Vigna em>genus are important food resources and there have already been many reports regarding their bioactivities. In our preliminary bioassay, the chloroform layer of methanol extracts of<em> V. vexillata em>demonstrated significant anti-inflammatory bioactivity. Therefore, the present research is aimed to purify and identify the anti-inflammatory principles of <em>V. vexillataem>. One new sterol (1 and two new isoflavones (2,3 were reported from the natural sources for the first time and their chemical structures were determined by the spectroscopic and mass spectrometric analyses. In addition, 37 known compounds were identified by comparison of their physical and spectroscopic data with those reported in the literature. Among the isolates, daidzein (23, abscisic acid (25, and quercetin (40 displayed the most significant inhibition of superoxide anion generation and elastase release.

  19. Distribution and Seasonal Activity of Hard Ticks (Acari: Ixododae Infesting Domestic Ruminants in Famenin County, Hamadan Province, Iran

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    F. Fayazkhoo

    2017-10-01

    Full Text Available Background and Objective: Hard ticks (Acari: Ixodidae are one of the most important obligate ectoparasites of vertebrates, belonging to class Arachnida, which transmit a wide range of pathological agents such as viruses, bacteria, and parasites to humans and animals in Iran and around the world. Identifying the distribution of hard ticks in a region is important to monitor their control program, and thereby prevent disease transmission. Materials and Methods: In this cross-sectional descriptive study, sampling was carried out from different parts of the livestock body during four seasons in four geographical directions and five villages of Famenin County, Hamadan Province, Iran, during 2015-2016. The ticks were initially stimulated by using chloroform solution and then separated from domestic ruminants by forceps. The collected ticks were sent to a laboratory, and then their sex and species were identified by using valid diagnostic keys. Results: We studied 800 domestic ruminants, including cattle, sheep, and goats, and found 150 (18.7% cases of infestation. A total of 274 ticks were collected, 259 of which were hard ticks including four genera of Hyalomma, Dermacentor, Repicephlus, and Haemaphysalis. The greatest diversity of species, including Hyalomma scopens (Hy. deteritum, Hyalomma asiaticum, Hyalomma marginatum, and Hyalomma anatolicum belonged to the genus Hyalomma. The frequency rates of Hyalomma, Dermacentor, Rhipicephalus, and Hemaphysalis genera were 73.74%, 15.05%, 10.03%, and 1.15 %, respectively. The highest abundance of ticks was observed in spring (152. Conclusion: The results of this study indicate the diversity of hard ticks in the region and the highest abundance of ticks in spring. Considering the importance of ticks in disease transmission among humans and domestic ruminants, health authorities and respective organizations should take appropriate health measures to control and combat these external parasites.

  20. Removal of drone brood from Apis mellifera (Hymenoptera: Apidae) colonies to control Varroa destructor (Acari: Varroidae) and retain adult drones.

    Science.gov (United States)

    Wantuch, Holly A; Tarpy, David R

    2009-12-01

    The parasitic mite Varroa destructor Anderson & Trueman (Acari: Varroidae) has plagued European honey bees, Apis mellifera L. (Hymenoptera: Apidae), in the Americas since its introduction in the 1980s. For many years, these mites were sufficiently controlled using synthetic acaricides. Recently, however, beekeepers have experienced increased resistance by mites to chemical pesticides, which are also known to leave residues in hive products such as wax and honey. Thus there has been increased emphasis on nonchemical integrated pest management control tactics for Varroa. Because mites preferentially reproduce in drone brood (pupal males), we developed a treatment strategy focusing on salvaging parasitized drones while removing mites from them. We removed drone brood from colonies in which there was no acaricidal application and banked them in separate "drone-brood receiving" colonies treated with pesticides to kill mites emerging with drones. We tested 20 colonies divided into three groups: 1) negative control (no mite treatment), 2) positive control (treatment with acaricides), and 3) drone-brood removal and placement into drone-brood receiving colonies. We found that drone-brood trapping significantly lowered mite numbers during the early months of the season, eliminating the need for additional control measures in the spring. However, mite levels in the drone-brood removal group increased later in the summer, suggesting that this benefit does not persist throughout the entire season. Our results suggest that this method of drone-brood trapping can be used as an element of an integrated control strategy to control varroa mites, eliminating a large portion of the Varroa population with limited chemical treatments while retaining the benefits of maintaining adult drones in the population.

  1. A novel spotted fever group Rickettsia infecting Amblyomma parvitarsum (Acari: Ixodidae) in highlands of Argentina and Chile.

    Science.gov (United States)

    Ogrzewalska, Maria; Nieri-Bastos, Fernanda A; Marcili, Arlei; Nava, Santiago; González-Acuña, Daniel; Muñoz-Leal, Sebastián; Ruiz-Arrondo, Ignacio; Venzal, José M; Mangold, Atilio; Labruna, Marcelo B

    2016-04-01

    The tick Amblyomma parvitarsum (Acari: Ixodidae) has established populations in Andean and Patagonic environments of South America. For the present study, adults of A. parvitarsum were collected in highland areas (elevation >3500 m) of Argentina and Chile during 2009-2013, and tested by PCR for rickettsial infection in the laboratory, and isolation of rickettsiae in Vero cell culture by the shell vial technique. Overall, 51 (62.2%) out of 82 A. parvitarsum adult ticks were infected by spotted fever group (SFG) rickettsiae, which generated DNA sequences 100% identical to each other, and when submitted to BLAST analysis, they were 99.3% identical to corresponding sequence of the ompA gene of Rickettsia sp. strain Atlantic rainforest. Rickettsiae were successfully isolated in Vero cell culture from two ticks, one from Argentina and one from Chile. DNA extracted from the third passage of the isolates of Argentina and Chile were processed by PCR, resulting in partial sequences for three rickettsial genes (gltA, ompB, ompA). These sequences were concatenated and aligned with rickettsial corresponding sequences available in GenBank. Phylogenetic analysis revealed that the A. pavitarsum rickettsial agent grouped under high bootstrap support in a clade composed by the SFG pathogens R. sibirica, R. africae, R. parkeri, Rickettsia sp. strain Atlantic rainforest, and two unnamed SFG agents of unknown pathogenicty, Rickettsia sp. strain NOD, and Rickettsia sp. strain ApPR. The pathogenic role of this A. parvitarsum rickettsia cannot be discarded, since several species of tick-borne rickettsiae that were considered nonpathogenic for decades are now associated with human infections. Copyright © 2016. Published by Elsevier GmbH.

  2. Phylogeny and species delineation in European species of the genus Steganacarus (Acari, Oribatida) using mitochondrial and nuclear markers.

    Science.gov (United States)

    Kreipe, Victoria; Corral-Hernández, Elena; Scheu, Stefan; Schaefer, Ina; Maraun, Mark

    2015-06-01

    Species of the genus Steganacarus are soil-living oribatid mites (Acari, Phthiracaridae) with a ptychoid body. The phylogeny and species status of the species of Steganacarus are not resolved, some authors group all ten German species of Steganacarus within the genus Steganacarus whereas others split them into three subgenera, Steganacarus, Tropacarus and Atropacarus. Additionally, two species, S. magnus and T. carinatus, comprise morphotypes of questionable species status. We investigated the phylogeny and species status of ten European Steganacarus species, i.e. S. applicatus, S. herculeanus, S. magnus forma magna, S. magnus forma anomala, S. spinosus, Tropacarus brevipilus, T. carinatus forma carinata, T. carinatus forma pulcherrima, Atropacarus striculus and Rhacaplacarus ortizi. We used two molecular markers, a 251 bp fragment of the nuclear gene 28S rDNA (D3) and a 477 bp fragment of the mitochondrial COI region. The phylogeny based on a combined analysis of D3 and COI separated four subgenera (Steganacarus, Tropacarus and Atropacarus, Rhacaplacarus) indicating that they form monophyletic groups. The COI region separated all ten species of the genus Steganacarus and showed variation within some species often correlating with the geographic origin of the species. Resolution of the more conserved D3 region was limited, indicating that radiation events are rather recent. Overall, our results indicate that both genes alone cannot be used for phylogeny and barcoding since variation is too low in D3 and too high in COI. However, when used in combination these genes provide reliable insight into the phylogeny, radiation and species status of taxa of the genus Steganacarus.

  3. Momentos em freios e em embraiagens

    OpenAIRE

    Mimoso, Rui Miguel Pereira

    2011-01-01

    Dissertação para obtenção do Grau de Mestre em Mestrado Integrado em Engenharia Mecânica Nesta dissertação reúnem-se os modelos de cálculo utilizados na determinação dos momentos em freios e em embraiagens. Neste trabalho consideram-se os casos de freios e embraiagens de atrito seco e atrito viscoso. Nos freios de atrito viscoso são considerados casos em que as características dos fluidos não são induzidas, e outros em que são induzidas modificações a essas mesmas características. São a...

  4. Distribuição espacial de Calacarus Heveae feres na cultura da seringueira em Marinópolis - São Paulo

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    Gustavo Luís Mamoré Martins

    2012-04-01

    Full Text Available O objetivo deste trabalho foi estudar a distribuição espacial de Calacarus heveae Feres (Acari: Eriophyidae na cultura da seringueira, tendo como base um monitoramento realizado com lupa de bolso. A área experimental, localizada em Marinópolis, São Paulo, com 1.000 plantas do clone RRIM 600, foi dividida em 100 parcelas de 10 plantas cada uma. Foram realizadas 16 coletas no período de dezembro de 2007 a junho de 2008. Nas coletas foram amostradas duas plantas por parcela, retirando-se de cada uma extremidade de ramo com 30 cm de comprimento. No laboratório, os ácaros foram avaliados com o uso de lupa de bolso de 20X de aumento, em seis folíolos por parcela, sendo três de cada ramo. A contagem dos ácaros foi realizada em duas áreas de 1 cm² na página superior dos folíolos, uma de cada lado da nervura principal. Os índices de dispersão estudados foram: razão variância/média (I, índice de Morisita (Id, coeficiente de Green (Cx e expoente k da distribuição binomial negativa. C. heveae apresenta distribuição agregada em área de cultivo de seringueira. A distribuição espacial do ácaro ajusta-se ao modelo de distribuição binomial negativa.

  5. Detection of Babesia spp. in Dogs and Their Ticks From Peninsular Malaysia: Emphasis on Babesia gibsoni and Babesia vogeli Infections in Rhipicephalus sanguineus sensu lato (Acari: Ixodidae).

    Science.gov (United States)

    Prakash, Batah Kunalan; Low, Van Lun; Vinnie-Siow, Wei Yin; Tan, Tiong Kai; Lim, Yvonne Ai-Lian; Morvarid, Akhavan Rezaei; AbuBakar, Sazaly; Sofian-Azirun, Mohd

    2018-05-12

    Canine babesiosis is an emerging tick-borne disease with a worldwide distribution, including Malaysia. While the prevalence of Babesia has been documented from dogs in Malaysia, occurrence of Babesia has been relatively little studied in their tick vectors. Accordingly, a total of 240 dogs and 140 Rhipicephalus sanguineus sensu lato (s.l.) (Acari: Ixodidae) ticks from Malaysia were molecularly screened for the presence of Babesia protozoa in the present study. Babesia gibsoni was only detected in ticks (1.4%), whereas Babesia vogeli was detected in both ticks (1.4%) and dogs (2.1%). This study highlights the detection of B. gibsoni and B. vogeli for the first time, in both adult and nymphal stages of R. sanguineus s.l. in Malaysia, suggesting the potential role of this tick species in transmitting canine babesiosis.

  6. Dermatoses em renais cronicos em terapia dialitica

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    Luis Alberto Batista Peres

    2014-03-01

    Full Text Available Objetivo: As desordens cutâneas e das mucosas são comuns em pacientes em hemodiálise a longo prazo. A diálise prolonga a expectativa de vida, dando tempo para a manifestação destas anormalidades. Os objetivos deste estudo foram avaliar a prevalência de problemas dermatológicos em pacientes com doença renal crônica (DRC em hemodiálise. Métodos: Cento e quarenta e cinco pacientes com doença renal crônica em hemodiálise foram estudados. Todos os pacientes foram completamente analisados para as alterações cutâneas, de cabelos, mucosas e unhas por um único examinador e foram coletados dados de exames laboratoriais. Os dados foram armazenados em um banco de dados do Microsolft Excel e analisados por estatística descritiva. As variáveis contínuas foram comparadas pelo teste t de Student e as variáveis categóricas utilizando o teste do qui-quadrado ou o teste Exato de Fischer, conforme adequado. Resultados: O estudo incluiu 145 pacientes, com idade média de 53,6 ± 14,7 anos, predominantemente do sexo masculino (64,1% e caucasianos (90,0%. O tempo médio de diálise foi de 43,3 ± 42,3 meses. As principais doenças subjacentes foram: hipertensão arterial em 33,8%, diabetes mellitus em 29,6% e glomerulonefrite crônica em 13,1%. As principais manifestações dermatológicas observadas foram: xerose em 109 (75,2%, equimose em 87 (60,0%, prurido em 78 (53,8% e lentigo em 33 (22,8% pacientes. Conclusão: O nosso estudo mostrou a presença de mais do que uma dermatose por paciente. As alterações cutâneas são frequentes em pacientes em diálise. Mais estudos são necessários para melhor caracterização e manejo destas dermatoses.

  7. Expression analysis of Drosophila doublesex, transformer-2, intersex, fruitless-like, and vitellogenin homologs in the parahaploid predator Metaseiulus occidentalis (Chelicerata: Acari: Phytoseiidae).

    Science.gov (United States)

    Pomerantz, Aaron F; Hoy, Marjorie A

    2015-01-01

    Characterization and expression analyses are essential to gain insight into sex-determination pathways in members of the Acari. Little is known about sex determination at the molecular level in the western orchard predatory mite Metaseiulus occidentalis (Arthropoda: Chelicerata: Arachnida: Acari: Phytoseiidae), a parahaploid species. In this study, eight genes previously identified as putative homologs to genes involved in the sex-determination pathway in Drosophila melanogaster were evaluated for sex-specific alternative splicing and sex-biased expression using reverse-transcriptase PCR and quantitative real-time PCR techniques, respectively. The homologs evaluated in M. occidentalis included two doublesex-like genes (Moccdsx1 and Moccdsx2), transformer-2 (Mocctra-2), intersex (Moccix), two fruitless-like genes (MoccBTB1 and MoccBTB2), as well as two vitellogenin-like genes (Moccvg1 and Moccvg2). Single transcripts of equal size were detected in males and females for Moccdsx1, Moccdsx2, Mocctra-2, Moccix, and MoccBTB2, suggesting that their pre-mRNAs do not undergo alternative splicing in a sex-specific manner. Three genes, Moccdsx1, Moccdsx2 and MoccBTB2, displayed male-biased expression relative to females. One gene, Moccix, displayed female-biased expression relative to males. Two genes, Mocctra-2 and MoccBTB1, did not display detectable differences in transcript abundance in males and females. Expression of Moccvg1 and Moccvg2 were detected in females only, and transcript levels were up-regulated in mated females relative to unmated females. To our knowledge, this represents the first attempt to elucidate expression patterns of putative sex-determination genes in an acarine. This study is an initial step towards understanding the sex-determination pathway in the parahaploid M. occidentalis.

  8. Feather mites (Acari: Astigmata) on birds of Cerrado in Distrito Federal, Brazil

    OpenAIRE

    Kanegae, Mieko Ferreira; Valim, Michel; Fonseca, Marcelo Andrade da; Marini, Miguel Ângelo; Freire, Nicolau Maués Serra

    2008-01-01

    O objetivo do estudo foi identificar os ácaros plumícolas em aves do cerrado. O mesmo foi realizado na Fazenda Água Limpa (FAL), Distrito Federal, Brasil, entre janeiro e agosto de 2002. As aves foram capturadas com rede de neblina e anilhadas. Foram amostradas 696 aves pertencentes a 83 espécies e 25 famílias de Passeriformes e não-Passeriformes. Foram encontrados ácaros plumícolas pertencentes a cinco famílias: Analgidae, Trouessartiidae, Proctophyllodidae, Avenzoariidae e Psoroptoididae. O...

  9. TOXICIDADE DE ÓLEOS ESSENCIAIS PARA O CONTROLE DE Tetranychus urticae KOCH, 1836 (ACARI: TETRANYCHIDAE)

    OpenAIRE

    Camila Santos Teixeira; Camila Costabeber Nunes; Romário Vargas; José Romário de Carvalho; Hugo Bolsoni Zago

    2017-01-01

    O ácaro rajado é considerado uma importante praga agrícola, causando danos em diferentes cultivos. O controle à base de acaricidas químicos pode vir a causar problemas ambientais e à saúde do homem. Desta forma o uso de óleos essenciais obtidos de produtos botânicos é uma alternativa no controle de pragas por apresentar baixo efeito residual, sendo objetivo deste trabalho avaliar a mortalidade e o efeito na fertilidade de fêmeas adultas de Tetranychus urticae submetidas a tratamentos com óleo...

  10. Susceptibility of Oligonychus yothersi (Acari: Tetranychidae) to the fungus Beauveria bassiana

    OpenAIRE

    Oliveira, Renato Cassol de; Alves, Luis Francisco Angeli; Neves, Pedro Manuel Oliveira Janeiro

    2002-01-01

    A cultura da erva-mate (Ilex paraguariensis) é uma importante atividade econômica no Sul do Brasil. Com o aumento de consumo nos anos oitenta, cresceram também as áreas de monocultura, gerando condições favoráveis para o aumento populacional de insetos e ácaros fitófagos, entre eles o ácaro vermelho Oligonychus yothersi. Este estudo avaliou a suscetibilidade do ácaro vermelho O. yothersi a vários isolados do fungo Beauveria bassiana. O experimento foi conduzido em Cascavel, PR. Discos foliare...

  11. TOXICIDADE DE ÓLEOS ESSENCIAIS PARA O CONTROLE DE Tetranychus urticae KOCH, 1836 (ACARI: TETRANYCHIDAE

    Directory of Open Access Journals (Sweden)

    Camila Santos Teixeira

    2017-04-01

    Full Text Available O ácaro rajado é considerado uma importante praga agrícola, causando danos em diferentes cultivos. O controle à base de acaricidas químicos pode vir a causar problemas ambientais e à saúde do homem. Desta forma o uso de óleos essenciais obtidos de produtos botânicos é uma alternativa no controle de pragas por apresentar baixo efeito residual, sendo objetivo deste trabalho avaliar a mortalidade e o efeito na fertilidade de fêmeas adultas de Tetranychus urticae submetidas a tratamentos com óleos essenciais de laranja doce e limoneno, fornecidos pela empresa Ferquima Indústria e Comércio LTDA., e pela empresa Pack Indústria e Comércio de Produtos Agropecuários LTDA., respectivamente. Para avaliar a ação fumigante do óleo essencial sobre os ácaros foram realizados testes submetendo fêmeas adultas de T. urticae à dose pura do óleo essencial utilizando as dosagens de 5, 15 e 25 µL em câmaras de fumigação. Após o período de exposição ao óleo foi contabilizado o número de ácaros mortos e a quantidade de ovos depositados. Os resultados não foram significativos para mortalidade e para fertilidade de fêmeas adultas de T. urticae.

  12. Site fidelity and longevity of the Karoo Thrush Turdus smithi ...

    African Journals Online (AJOL)

    , and have a similar maximum longevity. We propose that adult thrushes are able to persist in a given home range because they are able to avoid resident predators, e.g. feral cats Felis sylvestris catus, by accurately predicting their hunting ...

  13. EM International. Volume 1

    Energy Technology Data Exchange (ETDEWEB)

    1993-07-01

    It is the intent of EM International to describe the Office of Environmental Restoration and Waste Management`s (EM`s) various roles and responsibilities within the international community. Cooperative agreements and programs, descriptions of projects and technologies, and synopses of visits to international sites are all highlighted in this semiannual journal. Focus on EM programs in this issue is on international collaboration in vitrification projects. Technology highlights covers: in situ sealing for contaminated sites; and remote sensors for toxic pollutants. Section on profiles of countries includes: Arctic contamination by the former Soviet Union, and EM activities with Germany--cooperative arrangements.

  14. Novel bacterial pathogen Acaricomes phytoseiuli causes severe disease symptoms and histopathological changes in the predatory mite Phytoseiulus persimilis (Acari, Phytoseiidae).

    Science.gov (United States)

    Schütte, Conny; Gols, Rieta; Kleespies, Regina G; Poitevin, Olivier; Dicke, Marcel

    2008-06-01

    Adult female Phytoseiulus persimilis Athias-Henriot (Acari, Phytoseiidae) of a laboratory population show a set of characteristic symptoms, designated as non-responding (NR) syndrome. Mature predators shrink, cease oviposition and die. They show a lower degree of attraction to herbivore-induced plant volatiles and a greater tendency to leave prey patches carrying ample prey. Moreover, predators may carry excretory crystals in the legs, may cease prey consumption and have a low excretion rate. Here, we satisfy Koch's postulates for a strain of Acaricomes phytoseiuli (DSM 14247) that was isolated from symptomatic female P. persimilis of the NR-population. Adult female P. persimilis were either exposed to a bacterial inoculum suspension (treatment) or to sterile distilled water (control) for a period of 3 days. Control and treated predators were examined for the occurrence of six symptoms characteristic for the NR-syndrome and the presence of A. phytoseiuli after inoculation. The latter was done by re-isolation of A. phytoseiuli from individual predators and predator feces placed on nutrient agar, by PCR-based identification and by histopathological studies of individual predators. The NR-syndrome was clearly induced in those predators that had been exposed to the bacterial inoculum (incubation time=2-5 days, fraction shrunken females=80%), whereas predators exposed to water did not show the NR-syndrome. A. phytoseiuli was never isolated from control predators whereas it could be re-isolated from 60% of the treated predators (N=37) and from feces of 41% of treated predators (N=17). Only one day after exposure A. phytoseiuli could not be re-isolated from treated predators and their feces. Light and electron microscope studies of predators exposed to A. phytoseiuli revealed striking bacterial accumulations in the lumen of the alimentary tract together with extreme degeneration of its epithelium. In addition, bacterial foci also occurred in the fat body. These phenomena

  15. A novel disease affecting the predatory mite Phytoseiulus persimilis (Acari, Phytoseiidae): 2. Disease transmission by adult females.

    Science.gov (United States)

    Schütte, Conny; Poitevin, Olivier; Negash, Tesfaye; Dicke, Marcel

    2006-01-01

    Adult female Phytoseiulus persimilis Athias-Henriot (Acari, Phytoseiidae) of one of our laboratory populations (=NR-population), show the following set of symptoms: predators shrink several days after mating, cease egg production and die several days after shrinking, show a lower degree of attraction to herbivore-induced plant volatiles and a shorter choice time in olfactometer tests, have the tendency to leave a prey patch with ample food, may carry excretory crystals in the legs, may cease prey consumption, and have a lower excretion rate. We hypothesized earlier that this characteristic syndrome, called non-responding (=NR-) syndrome, is caused by a pathogen infecting P. persimilis. To further support this hypothesis we here study several transmission modes of the factor causing the NR-syndrome. In all tests we measured size, short-term fecundity, mortality, predator position, response to plant odors and crystal location, thus including 6 of the 9 symptoms known yet. No evidence was found for vertical transmission from parent to offspring. Eggs from symptomatic females of the NR-population mated by males of the NR-population gave rise to normal-sized, well performing predators, when they had been surface sterilized or transferred to a new leaf. However, such eggs gave rise to shrunken females (17%) when left on the leaf where they had been laid. In the latter case transmission via products deposited on the leaf by the mothers was possible. We therefore tested several modes of horizontal transmission by exposing females of a commercial population that never showed the NR-syndrome (=R1-population) to products related to the symptomatic NR-population. No evidence was found for transmission via food or via squashed adult females. However, symptoms were induced in adult females of the R1-population after a 3-day exposure to a live adult female of the NR-population (incubation period=3-7 days, fraction shrunken females=53%) and after a 1-day exposure to feces and

  16. Ocorrência de ectoparasitos em avestruzes (Struthio camelus criadas no semi-árido baiano Occurence of ectoparasites in ostriches (Struthio camelus reared in semi-arid region of Bahia

    Directory of Open Access Journals (Sweden)

    Maria Ângela O. Almeida

    2008-09-01

    Full Text Available No período de maio a agosto de 2005, foram visitados 19 planteis de avestruzes na região semi-árida do município de Irecê, Bahia, objetivando identificar os ectoparasitos. As aves, predominantemente da raça "African Black", eram criadas em sistema intensivo e distribuídas, por faixa etária, em colônias, trio, casal ou creche. Durante a inspeção das aves, as plumas colhidas aleatoriamente, de várias regiões do corpo, foram acondicionadas em sacos plásticos e as larvas, colhidas das miíases, em álcool etílico a 70%. Em 74% (14/19 e 47% (04/19 dos plantéis encontravam-se avestruzes infestadas, respectivamente, pelas espécies Struthiopterolichus bicaudatus e Struthiolipeurus rheae. Somente em um plantel (5,3% foi encontrado um animal parasitado por larvas de Cochliomyia hominivorax.In the period of May to August of 2005, 19 ostrich's farms were visited in the semi-arid area of the Irecê, Bahia, in order to describe the ectoparasites. The African Black ostriches were reared in intensive system, and distributed for age group, in colonies, trio, couple or crèche. In each farm, after visually inspection of the ostrich, the feathers were taken in several areas of the body and were kept in plastic bags. The screwworms found were collected and stored in 70% ethanol. In 74% (14/19 and 47% (04/19 of the flocks were found ostriches infested, respectively, for the Struthiopterolichus bicaudatus (acari and Struthiolipeurus rheae (mallophaga. In only one flock (5.3% it was found an animal with Cochliomyia hominivorax larvae.

  17. Microsatellite Loci in the Gypsophyte <em>Lepidium subulatum em>(Brassicaceae, and Transferability to Other <em>Lepidieae>

    Directory of Open Access Journals (Sweden)

    José Gabriel Segarra-Moragues

    2012-09-01

    Full Text Available Polymorphic microsatellite markers were developed for the Ibero-North African, strict gypsophyte <em>Lepidium subulatumem> to unravel the effects of habitat fragmentation in levels of genetic diversity, genetic structure and gene flow among its populations. Using 454 pyrosequencing 12 microsatellite loci including di- and tri-nucleotide repeats were characterized in <em>L. subulatumem>. They amplified a total of 80 alleles (2–12 alleles per locus in a sample of 35 individuals of <em>L. subulatumem>, showing relatively high levels of genetic diversity, <em>H>O = 0.645, <em>H>E = 0.627. Cross-species transferability of all 12 loci was successful for the Iberian endemics <em>Lepidium cardaminesem>, <em>Lepidium stylatumem>, and the widespread, <em>Lepidium graminifoliumem> and one species each of two related genera, <em>Cardaria drabaem> and <em>Coronopus didymusem>. These microsatellite primers will be useful to investigate genetic diversity, population structure and to address conservation genetics in species of <em>Lepidium>.

  18. Efeitos do nim sobre tetranychus urticae Koch (Acari: Tetranychidae e os predadores Phytoseiulus macropilis (Banks e Neoseiulus californicus (Mcgregor (Acari: Phytoseiidae Effects of neem on tetranychus urticae Koch (Acari: Tetranychidae and the predators Phytoseiulus macropilis (Banks and Neoseiulus Californicus (Mcgregor (Acari: phytoseiidae

    Directory of Open Access Journals (Sweden)

    Daniele Cristine Hoffmann Schlesener

    2013-03-01

    Full Text Available O objetivo deste trabalho foi avaliar a eficiência de controle e os efeitos adversos de dois produtos à base de nim Azamax® (Azadiractina A/B 12g/L e Neemseto® (Azadiractina A/B, Nimbina e Salanina 2,389 g/L sobre o ácaro-rajado Tetranychus urticae e os predadores Phytoseiulus macropilis e Neoseiulus californicus em laboratório. Para o ácaro-rajado, foram consideradas as variáveis mortalidade, fecundidade, efeito ovicida e persistência biológica, enquanto para os fitoseídeos consideraram-se mortalidade e fecundidade. A mortalidade máxima observada para o ácaro-rajado foi de 89,7% e 91,5% para Azamax® e Neemseto®, respectivamente, na concentração de 0,5% após a reaplicação do produto no sétimo dia. Também foram observados efeitos adversos sobre a fecundidade e a viabilidade dos ovos quando tratados com os produtos comerciais (p.c.. A persistência biológica dos produtos foi de aproximadamente três dias após a pulverização. As formulações apresentaram seletividade em relação aos fitoseídeos, porém causaram redução da fecundidade dos mesmos.The aim of the present study was to evaluate the efficiency of control and adverse effects of two neem based products: Azamax TM (Azadirachtin A/B 12g/L and Neemseto TM (Azadirachtin A/B, Nimbin and Salanin 2,389 g/L over two-spotted spider mite Tetranychus urticae and the predators Phytoseiulus macropilis and Neoseiulus californicus in laboratory. Effects over the mortality, fecundity, eggs and biological persistence of the two-spotted spider mite when treated with neem based products were evaluated. For the phytoseiids the effects on mortality and fecundity were evaluated. The maximum mortality of two-spotted spider mites rates observed were 89.7% and 91.5% for Azamax TM and Neemseto TM respectively, on the 0.5% concentration after reapplying the product on the seventh day. Adverse effects were also observed over the fecundity and viability of the eggs when treated with

  19. Raillietia caprae (Acari: Raillietidae and Psoroptes ovis (Acari: Psoroptidae in the ears of goats in the state of Rio de Janeiro, Southeast Brazil Raillietia caprae (Acari: Raillietidae e Psoroptes ovis (Acari: Psoroptidae nos condutos auditivos de caprinos no Estado do Rio de Janeiro, Brasil

    Directory of Open Access Journals (Sweden)

    João Luiz H. Faccini

    2008-03-01

    Full Text Available Ear cannals of 145 domestic goats including the breeds Saanen, Toggenburg, Anglobian, Alpine, Moxoto (native and crossbred goats from 10 smallholder farms were examined by flushing for the presence of ear mites. Prevalence of Raillietia caprae Quintero, Bassols and Acevedo, 1980 was much more higher than Psoroptes ovis (Hering, 1838 in the studied area, respectively 62% ( 90/145 and 4% ( 6/145. The youngest animal parasitized was eight months old and the oldest was 10 years old. Subclinical otitis is a common feature of infestation by both species but increase of wax and the presence of pus were detected in the flushed material in approximately 10% of the goats examined.Os condutos auditivos de 145 caprinos das raças Saanen, Toggenburg, Anglobian, Alpine, Moxoto (native e mestiços provenientes de 10 pequenos criadores foram examinados pela técnica de lavagem para diagnosticar a infestação por ácaros. A prevalência de Raillietia caprae Quintero, Bassols and Acevedo, 1980 foi muito mais alta do que Psoroptes ovis (Hering, 1838 - 62% (90/145 e 4% (6/145, respectivamente. O animal parasitado mais jovem tinha oito meses de idade e o mais velho 10 anos. Otite subclínica é comum nas infestações por ambas espécies mas aumento de cerume e presença de pus foram diagnosticados no material da lavagem em aproximadamente 10% dos caprinos examinados.

  20. Marketing em moda

    OpenAIRE

    Leães, Sabrina Durgante

    2008-01-01

    Dissertação de mestrado em Design e Marketing O actual estado do Marketing em Moda é uma das questões ainda complexa com que se debate a sociedade global. As questões do Marketing em Moda percorrem alguns aspectos fundamentais tais como as constantes mutações do meio envolvente, a forma de como é percebida e comunicada a identidade das marcas de moda, em busca da melhor forma de segmentar o mercado e definir o seu posicionamento, bem como a reacção ao produto de moda do consumidor final. ...

  1. BIOLOGIA E TABELA DE VIDA DO ÁCARO PREDADOR Euseius concordis (CHANT, 1959 (ACARI: PHYTOSEIIDAE EM PINHÃO-MANSO

    Directory of Open Access Journals (Sweden)

    CLECIA DE CARVALHO MARQUES

    2015-01-01

    Full Text Available The objective of this study was to evaluate the development and the intrinsic growth rate (rm of Euseius concordis on Tetranychus bastosi on physic nut (Jatropha curcas. The experiment was conducted in incubator BOD at 25 ° C and 70 % RH, with 12h photoperiod environment. The evaluations were performed twice daily for the biology of the mite, and once to the reproductive parameters. The average life cycle of fe-males was 6.3 ± 0.14 days and the males of 6.22 ± 0.14 days. The sex ratio was 0.64, and the average longevi-ty of females was 22.6 ± 2.22 days with an average production of 7,42 eggs per female. The parameters of the life table were obtained : net reproductive rate (Ro, 54,9 individuals ; average length of generations (T , 7,77 days; intrinsic growth rate (rm, 0,22 female per female per day; finite rate of increase (λ, 1,24 female per fe-male; and in population doubling time (TD, 3,16 days. The E. concordis mite has developed satisfactorily when created with T. diet bastosi, with the short development cycle.

  2. Emergency Medical Service (EMS) Stations

    Data.gov (United States)

    Kansas Data Access and Support Center — EMS Locations in Kansas The EMS stations dataset consists of any location where emergency medical services (EMS) personnel are stationed or based out of, or where...

  3. Caracterização de um vírus baciliforme isolado de Solanum violaefolium transmitido pelos ácaros Brevipalpus phoenicis e Brevipalpus obovatus (Acari: Tenuipalpidae Characterization of a bacilliform virus isolated from Solanum violaefolium transmitted by the tenuipalpid mites Brevipalpus phoenicis and Brevipalpus obovatus

    Directory of Open Access Journals (Sweden)

    Paulo de Tarso Oliveira Ferreira

    2007-09-01

    Full Text Available Solano-violeta (Solanum violaefolium é uma planta ornamental rasteira usada para cobrir solos de áreas sombreadas. Um vírus que induz manchas anelares nas folhas desta planta, tentativamente designado Solanum violaefolium ringspot virus - SvRSV, transmitido pelo ácaro Brevipalpus phoenicis (Acari: Tenuipalpidae foi encontrado em Piracicaba, SP. Trata-se de um vírus baciliforme que se assemelha a outros vírus do tipo citoplasmático transmitidos por Brevipalpus sp. Este trabalho teve como objetivo relatar propriedades biológicas e estabelecer uma caracterização molecular parcial do SvRSV. O vírus pode ser transmitido mecanicamente a várias outras espécies botânicas, causando lesões localizadas. Entre as espécies avaliadas, Datura stramonium mostrou-se a melhor hospedeira experimental. Observou-se também a manifestação de sintomas nestas plantas após infestação das mesmas por B. obovatus previamente alimentado em lesões de SvRSV, confirmando esta outra espécie de ácaro como vetor do vírus. Suas propriedades físicas in vitro foram: temperatura de inativação 40-45 ºC; ponto final de diluição 10-3-10-4; longevidade in vitro 12 dias. Em secções ultrafinas, as partículas do SvRSV mostraram-se levemente mais delgadas e mais longas que as de outros vírus do mesmo grupo. A partir do dsRNA do SvRSV foi construída uma biblioteca de cDNA e foram identificadas duas possíveis regiões codificadoras das proteínas de movimento e replicase viral. Baseado nestas regiões foram desenhados "primers" para amplificação do RNA do SvRSV por RT-PCR. Sondas baseadas nas seqüências obtidas hibridizaram com ss- e dsRNA de D. stramonium infectadas pelo vírus. Ensaios preliminares de RT-PCR e hibridização não resultaram em reação com o vírus da leprose dos citros, tipo citoplasmático (CiLV-C.Solanum violaefolium is an ornamental plant, with prostrate, trailing growth habit and is cultivated in shaded areas. A virus that causes

  4. Characterization of the complete mitochondrial genome of the storage mite pest Tyrophagus longior (Gervais) (Acari: Acaridae) and comparative mitogenomic analysis of four acarid mites.

    Science.gov (United States)

    Yang, Banghe; Li, Chaopin

    2016-02-01

    Mites of the genus Tyrophagus are economically important polyphagous pest commonly living on stored products and also responsible for allergic reactions to humans. Complete mitochondrial genomes (mitogenomes) and the gene features therein are widely used as molecular markers in the study of population genetics, phylogenetics as well as molecular evolution. However, scarcity on the sequence data has greatly impeded the studies in these areas pertaining to the Acari (mites and ticks). Information on the Tyrophagus mitogenomes is quite critical for phylogenetic evaluation and molecular evolution of the mitogenomes within Acariformes. Herein, we reported the complete mitogenome of the allergenic acarid storage mite Tyrophagus longior (Astigmata: Acaridae), an important member of stored food pests, and compared with those of other three acarid mites. The complete mitogenome of T. longior was a circular molecule of 13,271 bp. Unexpectedly, only 19 transfer RNA genes (tRNAs) were present, lacking trnF, trnS1 and trnQ. Furthermore, it also contained 13 protein-coding genes (PCGs) and 2 genes for rRNA (rrnS and rrnL) commonly detected in metazoans. The four mitogenomes displayed similar characteristics with respect to the gene content, nucleotide comparison, and codon usages. Yet, the gene order of T. longior was different from that in other Acari. The J-strands of the four mitogenomes possessed high A+T content (67.4-70.0%), and exhibited positive GC-skews and negative AT-skews. Most inferred tRNAs of T. longior were extremely truncated, lacking either a D- or T-arm, as found in other acarid mites. In T. longior mitogenome the A+T-rich region was just 50 bp in length and can be folded as a stable stem-loop structure, whereas in the region some structures of microsatellite-like (AT)n and palindromic sequences was not present. Besides, reconstructing of the phylogenetic relationship based on concatenated amino acid sequences of 13 PCGs supported that monophyly of the family

  5. Atividade in vitro de permetrina, cipermetrina e deltametrina sobre larvas de Rhipicephalus sanguineus (Latreille, 1806 (Acari, Ixodidae

    Directory of Open Access Journals (Sweden)

    Fernandes F.F.

    2000-01-01

    Full Text Available Investigaram-se os efeitos toxicológicos in vitro de três piretróides em diferentes concentrações, formulados para uso pecuário, domiciliar e em cães, sobre larvas de R. sanguineus, objetivando monitorar sua suscetibilidade e fomentar seu controle. Utilizaram-se 1.604 larvas em jejum, com 15 a 21 dias, obtidas por infestação artificial em cão, imersas nas soluções testadas, contidas em dispositivos constituídos por placa de Petri descartável, papel filtro e parafina, mantidas em incubadoras do tipo BOD e observadas ao estereoscópio por 24h. Observaram-se excitabilidade, movimentação repetitiva, diminuição da locomoção, desprendimento, paralisia, "knock-down" e proliferação cuticular de gases e líquidos. A mortalidade na 24ª hora foi de 86,9%, 100,0%, 80,3%, 86,0%, 68,2% e 78,0%, respectivamente, para permetrina 1250ppm e 2500ppm, cipermetrina 150ppm e 300ppm, e deltametrina 25ppm e 50ppm. Não houve mortalidade no grupo controle.

  6. <em>Angiostrongylus vasorumem> in red foxes (<em>Vulpes vulpesem> and badgers (<em>Meles melesem> from Central and Northern Italy

    Directory of Open Access Journals (Sweden)

    Marta Magi

    2010-06-01

    Full Text Available Abstract During 2004-2005 and 2007-2008, 189 foxes (<em>Vulpes vulpesem> and 6 badgers (<em>Meles melesem> were collected in different areas of Central Northern Italy (Piedmont, Liguria and Tuscany and examined for <em>Angiostrongylus vasorumem> infection. The prevalence of the infection was significantly different in the areas considered, with the highest values in the district of Imperia (80%, Liguria and in Montezemolo (70%, southern Piedmont; the prevalence in Tuscany was 7%. One badger collected in the area of Imperia turned out to be infected, representing the first report of the parasite in this species in Italy. Further studies are needed to evaluate the role played by fox populations as reservoirs of infection and the probability of its spreading to domestic dogs.
    Riassunto <em>Angiostrongylus vasorumem> nella volpe (<em>Vulpes vulpesem> e nel tasso (<em>Meles melesem> in Italia centro-settentrionale. Nel 2004-2005 e 2007-2008, 189 volpi (<em>Vulpes vulpesem> e 6 tassi (<em>Meles melesem> provenienti da differenti aree dell'Italia settentrionale e centrale (Piemonte, Liguria Toscana, sono stati esaminati per la ricerca di <em>Angiostrongylus vasorumem>. La prevalenza del nematode è risultata significativamente diversa nelle varie zone, con valori elevati nelle zone di Imperia (80% e di Montezemolo (70%, provincia di Cuneo; la prevalenza in Toscana è risultata del 7%. Un tasso proveniente dall'area di Imperia è risultato positivo per A. vasorum; questa è la prima segnalazione del parassita in tale specie in Italia. Ulteriori studi sono necessari per valutare il potenziale della volpe come serbatoio e la possibilità di diffusione della parassitosi ai cani domestici.

    doi:10.4404/hystrix-20.2-4442

  7. Diversity of Quill Mites of the Family Syringophilidae (Acari: Prostigmata) Parasitizing Owls (Aves: Strigiformes) With Remarks on the Host-Parasite Relationships.

    Science.gov (United States)

    Skoracki, Maciej; Unsoeld, Markus; Marciniak, Natalia; Sikora, Bozena

    2016-07-01

    The quill mite fauna of the family Syringophilidae (Acari: Prostigmata: Cheyletoidea) associated with owls (Aves: Strigiformes) is reviewed. A new genus is proposed, Neobubophilus Skoracki & Unsoeld gen. nov. It differs from closely related Bubophilus (Bubophilus Philips and Norton, 1978) by the absence of leg setae vsII in the both sexes. In addition, four new species are described: (1) Neobubophilus cunicularius Skoracki & Unsoeld sp. nov. from Athene cunicularia (Molina, 1782) (Strigidae) from Paraguay; (2) Neobubophilus atheneus Skoracki & Unsoeld sp. nov. from Athene noctua (Scopoli, 1769) and Athene brama (Temminck, 1821) (Strigidae), both from India; (3) Bubophilus tytonus Skoracki & Unsoeld sp. nov. from Tyto alba affinis (Blyth, 1862) (Tytonidae) from Cameroon, and (4) Megasyringophilus dalmas Skoracki & Unsoeld sp. nov. from Megascops choliba (Vieillot, 1817) (Strigidae) from Venezuela. The following new host species are given: Bubo bubo (Linnaeus, 1758) (Strigidae) from Nepal for Bubophilus ascalaphus (Philips and Norton 1978) and Strix woodfordii (Smith, 1834) (Strigidae) from Tanzania for Bubophilus aluconis (aluconis Nattress and Skoracki 2009). A key for syringophilid genera and species associated with owls is constructed. The host-parasite relationships of syringophilid mites and owls are discussed. © The Authors 2016. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com Version of Record, first published online May 24, 2016 with fixed content and layout in compliance with Art. 8.1.3.2 ICZN.

  8. Toxicological evaluation of genetically modified cotton (Bollgard) and Dipel WP on the non-target soil mite Scheloribates praeincisus (Acari: Oribatida).

    Science.gov (United States)

    Oliveira, Anibal R; Castro, Thiago R; Capalbo, Deise M F; Delalibera, Italo

    2007-01-01

    Insecticides derived from the bacterium Bacillus thuringiensis (Bt) and plants genetically modified (GM) to express B. thuringiensis toxins are important alternatives for insect pest control worldwide. Risk assessment of B. thuringiensis toxins to non-target organisms has been extensively studied but few toxicological tests have considered soil invertebrates. Oribatid mites are one of the most diverse and abundant arthropod groups in the upper layers of soil and litter in natural and agricultural systems. These mites are exposed to the toxic compounds of GM crops or pesticides mainly when they feed on vegetal products incorporated in the soil. Although some effects of B. thuringiensis products on Acari have been reported, effects on oribatid mites are still unknown. This study investigated the effects of the ingestion of Bt cotton Bollgard and of the B. thuringiensis commercial product Dipel WP on the pantropical species Scheloribates praeincisus (Scheloribatidae). Ingestion of Bollgard and Dipel did not affect adult and immature survivorship and food consumption (estimated by number of fecal pellets produced daily) or developmental time of immature stages of S. praeincisus. These results indicate the safety of Bollgard and Dipel to S. praeincisus under field conditions where exposition is lower and other food sources besides leaves of Bt plants are available. The method for toxicological tests described here can be adapted to other species of Oribatida, consisting on a new option to risk assessment studies.

  9. International EMS Systems

    DEFF Research Database (Denmark)

    Langhelle, Audun; Lossius, Hans Morten; Silfvast, Tom

    2004-01-01

    exist, however, especially within the ground and air ambulance service, and the EMS systems face several challenges. Main problems and challenges emphasized by the authors are: (1) Denmark: the dispatch centres are presently not under medical control and are without a national criteria based system......Emergency medicine service (EMS) systems in the five Nordic countries have more similarities than differences. One similarity is the involvement of anaesthesiologists as pre-hospital physicians and their strong participation for all critically ill and injured patients in-hospital. Discrepancies do....... Access to on-line medical advice of a physician is not available; (2) Finland: the autonomy of the individual municipalities and their responsibility to cover for primary and specialised health care, as well as the EMS, and the lack of supporting or demanding legislation regarding the EMS; (3) Iceland...

  10. A poliomielite em Sergipe

    Directory of Open Access Journals (Sweden)

    Hélio A. Oliveira

    1994-06-01

    Full Text Available Os autores apresentam estudo retrospectivo da poliomielite em Sergipe. Dividem o estudo em três períodos levando em consideração a taxa de notificação de casos positivos e enfatizam o período que vai de 1979 a 1989, pelo estudo de 159 casos consecutivos. As seguintes informações foram levantadas para cada caso: sexo, idade, procedência, estado vacinai anterior e evolução clínica. São também avaliadas a incidência anual, relação incidência/cobertura vacinai e distribuição geográfica. Tecem comentários sobre os surtos epidêmicos ocorridos em 1984 e 1986, sobre as alterações na circulação do poliovírus selvagem (P1 para P3 e sobre problemas relacionados à não aquisição de imunidade em crianças com esquema vacinal completo. Consideram a poliomielite controlada no Estado, mas enfatizam a necessidade de manutenção de Vigilância epidemiológica efetiva para todos os casos de paralisia aguda e flácida em menores de 14 anos de idade.

  11. EM type radioactive standards. Radioaktivni etalony EM

    Energy Technology Data Exchange (ETDEWEB)

    1981-01-01

    The standard contains technical specifications and conditions of production, testing, packing, transport and storage of EM type planar calibration standards containing radionuclides /sup 14/C, /sup 60/Co, /sup 90/Sr, /sup 137/Cs, /sup 147/Pm, /sup 204/Tl, /sup 239/Pu, /sup 241/Am and natural U. The terminology is explained, the related Czechoslovak standards and legal prescriptions given and amendments to these prescriptions presented.

  12. Comunidade de aves de sub-bosque em uma área de entorno do Parque Nacional do Itatiaia, Rio de Janeiro, Brasil Understory bird community in a surrounded area of Itatiaia National Park, Rio de Janeiro, Brazil

    Directory of Open Access Journals (Sweden)

    Eliana R. Maia-Gouvêa

    2005-12-01

    Full Text Available Este trabalho foi realizado em mata secundária no Município de Itatiaia, Estado do Rio de Janeiro (22º30'S e 44º30'W próximo ao Parque Nacional do Itatiaia, com o objeitvo de descrever a comunidade de aves ali presente. Foram amostrados três tipos vegetacionais distintos: reflorestamento, bosque e pomar, tendo sido realizadas 19 excursões entre 1984 e 1999. As aves foram amostradas através de capturas com redes de neblina e anilhamento, tendo sido utilizadas de 15 a 31 redes de 12 x 2 m e malha 36 mm. Foram também obtidas medidas morfométricas (comprimento total, asa, bico, cauda e tarso e dados biológicos (sexo, idade reprodução e muda. Depois de 5.621,79 horas-rede, foi registrado um total de 553 capturas, com 71 recapturas (12,84%; 417 indivíduos foram anilhados, e 65 beija-flores deixaram de ser marcados por falta de anilhas específicas. A comunidade estudada esteve representada por 77 espécies e 18 famílias, apresentando índice de diversidade H' = -1,594 e a curva do coletor com tendência à estabilização. As famílias com maior número de espécies foram Emberizidae (n = 21; 27,27% e Tyrannidae (n = 15; 19,48%. As espécies com maior abundância relativa foram Turdus leucomelas (n = 40; 9,59% e Turdus rufiventris (n = 36; 8,63%. Seis das espécies amostradas (7,8% são endêmicas do bioma Mata Atlântica. Na estação chuvosa foram amostradas 68 espécies, e na estação seca, 42; e as capturas estiveram relacionadas com as chuvas (rs = -0,6778; p = 0,05. O período reprodutivo ocorreu de outubro a março estando correlacionado com o início da estação chuvosa (rs = -0,702; p = 0,052.This study was conduced in a second growth woodland close to Itatiaia National Park (22º30'S e 44º30'W, Rio de Janeiro state, Brazil, and aimed to describe the understory bird community living in this area. We sampled three different vegetation types, reforestation, wood and orchard, through 19 field trips between 1984 and 1999. Birds

  13. Purification, Characterization and Antioxidant Activities <em>in Vitroem>> em>and <em>in Vivoem> of the Polysaccharides from <em>Boletus edulisem> Bull

    Directory of Open Access Journals (Sweden)

    Yijun Fan

    2012-07-01

    Full Text Available A water-soluble polysaccharide (BEBP was extracted from <em>Boletus edulis em>Bull using hot water extraction followed by ethanol precipitation. The polysaccharide BEBP was further purified by chromatography on a DEAE-cellulose column, giving three major polysaccharide fractions termed BEBP-1, BEBP-2 and BEBP-3. In the next experiment, the average molecular weight (Mw, IR and monosaccharide compositional analysis of the three polysaccharide fractions were determined. The evaluation of antioxidant activities both <em>in vitroem> and <em>in vivo em>suggested that BEBP-3 had good potential antioxidant activity, and should be explored as a novel potential antioxidant.

  14. Sulla presenza di <em>Sorex antinoriiem>, <em>Neomys anomalusem> (Insectivora, Soricidae e <em>Talpa caecaem> (Insectivora, Talpidae in Umbria

    Directory of Open Access Journals (Sweden)

    A.M. Paci

    2003-10-01

    Full Text Available Lo scopo del contributo è di fornire un aggiornamento sulla presenza del Toporagno del Vallese <em>Sorex antinoriiem>, del Toporagno acquatico di Miller <em>Neomys anomalusem> e della Talpa cieca <em>Talpa caecaem> in Umbria, dove le specie risultano accertate ormai da qualche anno. A tal fine sono stati rivisitati i reperti collezionati e la bibliografia conosciuta. Toporagno del Vallese: elevato di recente a livello di specie da Brünner et al. (2002, altrimenti considerato sottospecie del Toporagno comune (<em>S. araneus antinoriiem>. È conservato uno di tre crani incompleti (mancano mandibole ed incisivi superiori al momento prudenzialmente riferiti a <em>Sorex> cfr. <em>antinorii>, provenienti dall?Appennino umbro-marchigiano settentrionale (dintorni di Scalocchio - PG, 590 m. s.l.m. e determinati sulla base della pigmentazione rossa degli ipoconi del M1 e M2; Toporagno acquatico di Miller: tre crani (Breda in Paci e Romano op. cit. e un esemplare intero (Paci, ined. sono stati trovati a pochi chilometri di distanza gli uni dall?altro tra i comuni di Assisi e Valfabbrica, in ambienti mediocollinari limitrofi al Parco Regionale del M.te Subasio (Perugia. In provincia di Terni la specie viene segnalata da Isotti (op. cit. per i dintorni di Orvieto. Talpa cieca: sono noti una femmina e un maschio raccolti nel comune di Pietralunga (PG, rispettivamente in una conifereta a <em>Pinus nigraem> (m. 630 s.l.m. e nelle vicinanze di un bosco misto collinare a prevalenza di <em>Quercus cerrisem> (m. 640 s.l.m.. Recentemente un terzo individuo è stato rinvenuto nel comune di Sigillo (PG, all?interno del Parco Regionale di M.te Cucco, sul margine di una faggeta a 1100 m s.l.m. In entrambi i casi l?areale della specie è risultato parapatrico con quello di <em>Talpa europaeaem>.

  15. Methyl 2-Benzamido-2-(1<em>H>-benzimidazol-1-ylmethoxyacetate

    Directory of Open Access Journals (Sweden)

    Alami Anouar

    2012-09-01

    Full Text Available The heterocyclic carboxylic α-aminoester methyl 2-benzamido-2-(1<em>H>-benzimidazol-1-ylmethoxyacetate is obtained by <em>O>-alkylation of methyl α-azido glycinate <em>N>-benzoylated with 1<em>H>-benzimidazol-1-ylmethanol.

  16. A specimen of <em>Sorex> cfr. <em>samniticus> in Barn Owl's pellets from Murge plateau (Apulia, Italy / Su di un <em>Sorex> cfr. <em>samniticus> (Insectivora, Soricidae rinvenuto in borre di <em>Tyto albaem> delle Murge (Puglia, Italia

    Directory of Open Access Journals (Sweden)

    Giovanni Ferrara

    1992-07-01

    Full Text Available Abstract In a lot of Barn Owl's pellets from the Murge plateau a specimen of <em>Sorex> sp. was detected. Thank to some morphological and morphometrical features, the cranial bones can be tentatively attributed to <em>Sorex samniticusem> Altobello, 1926. The genus <em>Sorex> was not yet included in the Apulia's fauna southwards of the Gargano district; the origin and significance of the above record is briefly discussed, the actual presence of a natural population of <em>Sorex> in the Murge being not yet proved. Riassunto Viene segnalato il rinvenimento di un esemplare di <em>Sorex> cfr. <em>samniticus> da borre di <em>Tyto albaem> delle Murge. Poiché il genere non era stato ancora segnalato nella Puglia a sud del Gargano, viene discusso il significato faunistico del reperto.

  17. Glycosylation of Vanillin and 8-Nordihydrocapsaicin by Cultured <em>Eucalyptus perrinianaem> Cells

    Directory of Open Access Journals (Sweden)

    Naoji Kubota

    2012-05-01

    Full Text Available Glycosylation of vanilloids such as vanillin and 8-nordihydrocapsaicin by cultured plant cells of <em>Eucalyptus perrinianaem> was studied. Vanillin was converted into vanillin 4-<em>O>-b-D-glucopyranoside, vanillyl alcohol, and 4-<em>O>-b-D-glucopyranosylvanillyl alcohol by <em>E. perriniana em>cells. Incubation of cultured <em>E. perrinianaem> cells with 8-nor- dihydrocapsaicin gave 8-nordihydrocapsaicin 4-<em>O>-b-D-glucopyranoside and 8-nordihydro- capsaicin 4-<em>O>-b-D-gentiobioside.

  18. Retratos em movimento.

    Directory of Open Access Journals (Sweden)

    Luiz Carlos Oliveira Junior

    Full Text Available resumo O artigo aborda aspectos da relação do cinema com a arte do retrato. Buscamos, em primeiro lugar, uma definição estética do que seria um retrato cinematográfico, sempre em tensão com os critérios formais e padrões estilísticos que historicamente constituíram o retrato pictórico. Em seguida, relacionamos essa questão com a importância que se deu à representação do close-up de rosto nas primeiras décadas do cinema, quando foi atribuído aos filmes um papel inédito no estudo da fisionomia e da expressão facial. Por fim, apresentamos exemplos de autorretratos na pintura e no cinema para expor a forma como a autorrepresentação põe em crise as noções de subjetividade e identidade em que a definição clássica do retrato se apoiava.

  19. <em>In Vivoem> Histamine Optical Nanosensors

    Directory of Open Access Journals (Sweden)

    Heather A. Clark

    2012-08-01

    Full Text Available In this communication we discuss the development of ionophore based nanosensors for the detection and monitoring of histamine levels <em>in vivoem>. This approach is based on the use of an amine-reactive, broad spectrum ionophore which is capable of recognizing and binding to histamine. We pair this ionophore with our already established nanosensor platform, and demonstrate <em>in vitroem> and <em>in vivoem> monitoring of histamine levels. This approach enables capturing rapid kinetics of histamine after injection, which are more difficult to measure with standard approaches such as blood sampling, especially on small research models. The coupling together of <em>in vivoem> nanosensors with ionophores such as nonactin provide a way to generate nanosensors for novel targets without the difficult process of designing and synthesizing novel ionophores.

  20. Elenco y biogeografía de los ácaros acuáticos (Acari, Parasitengona, Hydrachnidia de Sudamérica

    Directory of Open Access Journals (Sweden)

    Rosso de Ferradás, B.

    2005-12-01

    Full Text Available Checklist and catalog publications demonstrate a clear connection between basic taxonomy and biodiversity issues. According to some estimates, only 10-30% of all global species have been named. As in other fields, catalogs provide an important source of information concerning species diversity in freshwater ecology.

    South America is a continent dominated by freshwater ecosystems. The tremendous habitat diversity created by this landscape supports a high number of arthropods, including water mites, which belong to the hyperdiverse group Acari. South America has a substantial task ahead in cataloging its biodiversity.

    Much has been published on water mites in South America. In fact, according to Besch, water mites were the most studied with the exception of Europe up until the 1960’s. Most of the collections were conducted by two acarologists (Lundblad and Karl Viets during the 1940’s. Today, the collection, identification and description process of water mites is slower. In the 1980’s, the north-american acarologist D. R. Cook produced two lengthy papers about neotropical water mites in four regions of South America. Recently, several Argentine acarologists have published papers on water mites from diverse habitats and regions in South America.

    The catalog presented here includes information regarding 6 superfamilies, including 23 families in 118 genera of true water mites (Hydrachnidia, Parasitengona, Acari. It also includes the references concerning the species, distribution in various regions of South America and –as far as known– habitat.

    At present, there are 916 species from several authors cataloged in 11 countries in South America. The degree of knowledge varies greatly from country to country, with numerous entries for Brazil and none for French Guiana.

    Las publicaciones de catálogos y listados de especies determinan una clara conexión entre taxonomía básica y temas

  1. Study of the <em>in Vitroem> Antiplasmodial, Antileishmanial and Antitrypanosomal Activities of Medicinal Plants from Saudi Arabia

    Directory of Open Access Journals (Sweden)

    Nawal M. Al-Musayeib

    2012-09-01

    Full Text Available The present study investigated the <em>in vitroem> antiprotozoal activity of sixteen selected medicinal plants. Plant materials were extracted with methanol and screened <em>in vitroem> against erythrocytic schizonts of <em>Plasmodium falciparumem>, intracellular amastigotes of <em>Leishmania infantum em>and <em>Trypanosoma cruzi em>and free trypomastigotes of<em> T. bruceiem>. Cytotoxic activity was determined against MRC-5 cells to assess selectivity<em>. em>The criterion for activity was an IC50 < 10 µg/mL (4. Antiplasmodial activity was found in the<em> em>extracts of<em> em>>Prosopis julifloraem> and <em>Punica granatumem>. Antileishmanial activity<em> em>against <em>L. infantumem> was demonstrated in <em>Caralluma sinaicaem> and <em>Periploca aphylla.em> Amastigotes of<em> T. cruzi em>were affected by the methanol extract of<em> em>>Albizia lebbeckem>> em>pericarp, <em>Caralluma sinaicaem>,> Periploca aphylla em>and <em>Prosopius julifloraem>. Activity against<em> T. brucei em>was obtained in<em> em>>Prosopis julifloraem>. Cytotoxicity (MRC-5 IC50 < 10 µg/mL and hence non-specific activities were observed for<em> em>>Conocarpus lancifoliusem>.>

  2. Long-Term Effects of Berberis thunbergii (Ranunculales: Berberidaceae) Management on Ixodes scapularis (Acari: Ixodidae) Abundance and Borrelia burgdorferi (Spirochaetales: Spirochaetaceae) Prevalence in Connecticut, USA.

    Science.gov (United States)

    Williams, Scott C; Linske, Megan A; Ward, Jeffrey S

    2017-12-08

    Japanese barberry (Berberis thunbergii de Candolle; Ranunculales: Berberidaceae) is an exotic invasive shrub that escaped cultivation in the United States and is now permanently established in many eastern and midwestern states. This study examined the long-term impacts of Japanese barberry management on blacklegged tick (Ixodes scapularis Say; Acari: Ixodidae) abundances and associated prevalence of Borrelia burgdorferi (Johnson, Schmid, Hyde, Steigerwalt, and Brenner; Spirochaetales: Spirochaetaceae), the etiologic agent of Lyme disease. At six locations across Connecticut, adult I. scapularis were sampled for up to 10 yr. At each location, we sampled an area where barberry infestations were unmanipulated, adjacent areas where barberry was virtually nonexistent, and areas where barberry was managed utilizing a variety of techniques. Barberry management reduced B. burgdorferi-infected adult I. scapularis (BBIAIS) abundances (191/ha ± 64 SE) over 6 yr to statistically indifferent from that of no barberry areas (140/ha ± 47 SE; P = 0.080) and significantly less than intact barberry stands (458/ha ± 80 SE; P = 0.026). Over 9 yr, BBIAIS abundances in managed barberry remained lower than intact barberry stands (P = 0.037), but increased to be significantly greater than no barberry areas (P = 0.007) as cover increased over time. Longer-term data further document that Japanese barberry infestations are favorable habitat for I. scapularis. Control of Japanese barberry and other invasives should be at least on a 5-yr rotation to maintain low levels of invasive cover and eliminate humidity refugia to expose juvenile I. scapularis to more hostile environmental conditions in the interest of public health. © The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  3. Ability of two natural products, nootkatone and carvacrol, to suppress Ixodes scapularis and Amblyomma americanum (Acari: Ixodidae) in a Lyme disease endemic area of New Jersey.

    Science.gov (United States)

    Dolan, Marc C; Jordan, Robert A; Schulze, Terry L; Schulze, Christopher J; Manning, Mark Cornell; Ruffolo, Daniel; Schmidt, Jason P; Piesman, Joseph; Karchesy, Joseph J

    2009-12-01

    We evaluated the ability of the natural, plant-derived acaricides nootkatone and carvacrol to suppress Ixodes scapularis Say and Amblyomma americanum (L.) (Acari: Ixodidae). Aqueous formulations of 1 and 5% nootkatone applied by backpack sprayer to the forest litter layer completely suppressed I. scapularis nymphs through 2 d. Thereafter, the level of reduction gradually declined to nootkatone was less effective, but at a 5% concentration, the level of control was similar or greater to that observed with I. scapularis through 21 d postapplication. Initial applications of 0.05% carvacrol were ineffective, but a 5% carvacrol formulation completely suppressed nymphs of both species through 2 d and resulted in significant reduction in I. scapularis and A. americanum nymphs through 28 and 14 d postapplication, respectively. Backpack sprayer applications of 5% nootkatone to the shrub and litter layers resulted in 100% control of I. scapularis adults through 6 d, but the level of reduction declined to 71.5% at 28 d postapplication. By contrast, high-pressure applications of 2% nootkatone to the litter layer resulted in 96.2-100% suppression of both I. scapularis and A. americanum nymphs through 42 d, whereas much lower control was obtained from the same formulation applied by backpack sprayer. Backpack sprayer application of a 3.1% nootkatone nanoemulsion resulted in 97.5-98.9 and 99.3-100% reduction in I. scapularis and A. americanum nymphs, respectively, at 1 d postapplication. Between 7 d and 35 d postapplication, the level of control varied between 57.1% and 92.5% for I. scapularis and between 78.5 and 97.1% for A. americanum nymphs. The ability of natural products to quickly suppress and maintain significant control of populations of these medically important ticks at relatively low concentrations may represent a future alternative to the use of conventional synthetic acaricides.

  4. Suppression of host-seeking Ixodes scapularis and Amblyomma americanum (Acari: Ixodidae) nymphs after dual applications of plant-derived acaricides in New Jersey.

    Science.gov (United States)

    Jordan, Robert A; Dolan, Marc C; Piesman, Joseph; Schulze, Terry L

    2011-04-01

    We evaluated the ability of dual applications of natural, plant-derived acaricides to suppress nymphal Ixodes scapularis Say and Amblyomma americanum (L.) (Acari: Ixodidae) in a Lyme disease endemic area of New Jersey. An aqueous formulation of 2% nootkatone provided >90% control of I. scapularis through 7 d. Control declined to 80.9% at 14 d, and a second application was made that provided >95% control through the remaining 4 wk of the nymphal season. Nootkatone provided >90% control of A. americanum through 35 d postapplication. Applications of 2% carvacrol and EcoTrol T&O resulted in rapid knockdown of both tick species, but control declined significantly to 76.7 and 73.7%, respectively, after 14 d when a second application was made that extended control of both tick species to between 86.2 and 94.8% at 21 d. Subsequently, control declined steadily in all plots by 42 d postapplication except for I. scapularis in carvacrol-treated plots, where levels of control >90% were observed through 35 d. Of the three compounds tested, 2% nootkatone provided the most consistent results, with 96.5 and 91.9% control of I. scapularis and A. americanum through 42 and 35 d, respectively. The ability of plant-derived natural products to quickly suppress and maintain significant control of populations of these medically important ticks may represent a future alternative to the use of conventional synthetic acaricides. In addition, the demonstrated efficacy of properly-timed backpack sprayer application may enable homeowner access to these minimal-risk acaricides.

  5. A review of the ticks (Acari, Ixodida of Brazil, their hosts and geographic distribution - 1. The State of Rio Grande do Sul, Southern Brazil

    Directory of Open Access Journals (Sweden)

    Evans DE

    2000-01-01

    Full Text Available A review of the ticks (Acari, Ixodida of the State of Rio Grande do Sul, southern Brazil, was completed as a step towards a definitive list (currently indicated as 12 of such species, their hosts and distribution. The ticks: Argas miniatus (poultry, Ixodes loricatus (opossums, Amblyomma aureolatum (dogs, A. calcaratum (anteaters, A. cooperi (capybaras, A. nodosum (anteaters, A. tigrinum (dogs (Neotropical and Rhipicephalus sanguineus (dogs (introduced, cosmopolitan, Afrotropical were confirmed as present, in addition to the predominant, Boophilus microplus (cattle (introduced, pan-tropical, Oriental. Of the further 18 species thus far reported in the literature as present in the state, but unavailable for examination: only Ornithodoros brasiliensis (humans and their habitations (Neotropical, Ixodes affinis (deer (Nearctic/Neotropical and I. auritulus (birds (Nearctic/Neotropical/Afrotropical/ Australasian are considered likely; 13 species would benefit from corroborative local data but the majority appear unlikely; reports of A. maculatum (Nearctic/Neotropical, but circum-Caribbean are considered erroneous; the validity of A. fuscum is in doubt. The very recent, first known report of the tropical Anocentor nitens (horses(Nearctic/Neotropical, but still apparent absence of the tropical A. cajennense (catholic (Nearctic/Neotropical and the sub-tropical/temperate Ixodes pararicinus (cattle (Neotropical in Rio Grande do Sul are important for considerations on their current biogeographical distribution and its dynamics in South America. The state has relatively long established, introduced ("exotic", Old World tick species (B. microplus, R. sanguineus that continue to represent significant pests and disease vectors to their traditional, introduced domestic animal hosts, cattle and urban dogs. There are also indigenous, New World ticks (A. miniatus, O. brasiliensis, A. aureolatum, A. nitens, as both long established and possibly newly locally

  6. Cyberbullying em adolescentes brasileiros

    OpenAIRE

    Wendt, Guilherme Welter

    2012-01-01

    O cyberbullying é entendido como uma forma de comportamento agressivo que ocorre através dos meios eletrônicos de interação (computadores, celulares, sites de relacionamento virtual), sendo realizado de maneira intencional por uma pessoa ou grupo contra alguém em situação desigual de poder e, ainda, com dificuldade em se defender. Os estudos disponíveis até o presente momento destacam que o cyberbullying é um fator de risco para o desenvolvimento de sintomas de ansiedade, depressão, ideação s...

  7. Nietzsche em voga

    OpenAIRE

    Borromeu, Carlos

    2015-01-01

    Resumo:Texto publicado em 1941, na revista de orientação católica A Ordem, no Rio de Janeiro. Seu autor considera que Nietzsche teria negado a moral tradicional, concebendo em seu lugar outra, porém imoral e brutal. Acusa o filósofo, por fim, de ser responsável pela Guerra ora e curso na Europa. Abstract:Text published in 1941 in the Catholic orientation magazine, A Ordem, in Rio de Janeiro. The author believes that Nietzsche would have denied traditional morality, conceiving another in it...

  8. Comments on Controversial Tick (Acari: Ixodida) Species Names and Species Described or Resurrected from 2003 to 2008

    Science.gov (United States)

    2009-01-24

    estados do Rio de Janeiro e de Sao Paulo. Entomol Vectores 10:407-410 Andrews RH, Beveridge I, Bull CM, Chilton MB, Dixon B...London Santos Dias JAT (1956) Invalidaqfio de algumas esp6cies ixodol6gicas originalmente determinadas em resultado de indevida rotulagem de material. Inst...Amblyomma curruca A. A. Guglielmone (l) Estaci6n Experimental Agropecuaria Rafaela, Instituto Nacional de Tecnologfa Agropecuaria, C.C. 22, CP

  9. Natural Products from Antarctic Colonial Ascidians of the Genera <em>Aplidium> and <em>Synoicum>: Variability and Defensive Role

    Directory of Open Access Journals (Sweden)

    Conxita Avila

    2012-08-01

    Full Text Available Ascidians have developed multiple defensive strategies mostly related to physical, nutritional or chemical properties of the tunic. One of such is chemical defense based on secondary metabolites. We analyzed a series of colonial Antarctic ascidians from deep-water collections belonging to the genera <em>Aplidium> and <em>Synoicum> to evaluate the incidence of organic deterrents and their variability. The ether fractions from 15 samples including specimens of the species <em>A.> <em>falklandicum>, <em>A.> <em>fuegiense>, <em>A.> <em>meridianum>, <em>A.> <em>millari> and <em>S.> <em>adareanum> were subjected to feeding assays towards two relevant sympatric predators: the starfish <em>Odontaster> <em>validus>, and the amphipod <em>Cheirimedon> <em>femoratus>. All samples revealed repellency. Nonetheless, some colonies concentrated defensive chemicals in internal body-regions rather than in the tunic. Four ascidian-derived meroterpenoids, rossinones B and the three derivatives 2,3-epoxy-rossinone B, 3-epi-rossinone B, 5,6-epoxy-rossinone B, and the indole alkaloids meridianins A–G, along with other minoritary meridianin compounds were isolated from several samples. Some purified metabolites were tested in feeding assays exhibiting potent unpalatabilities, thus revealing their role in predation avoidance. Ascidian extracts and purified compound-fractions were further assessed in antibacterial tests against a marine Antarctic bacterium. Only the meridianins showed inhibition activity, demonstrating a multifunctional defensive role. According to their occurrence in nature and within our colonial specimens, the possible origin of both types of metabolites is discussed.

  10. Chelicerata: Acari II

    NARCIS (Netherlands)

    Di Sabatino, A.; Gerecke, R.; Gledhill, T.; Smit, H.

    2010-01-01

    Chelicerata are a basically terrestrial group of invertebrates, including many clades whose representatives have never found an evolutionary way to aquatic live. An exception is made by some spiders and the highly diverse aquatic mites which in inland water habitats are represented by members of

  11. Toxicidade residual de alguns agrotóxicos recomendado na agricultura sobre Neoseiulus californicus (McGregor (Acari: Phytoseiidae Residual toxicity of some pesticides recommended for citrus orchards on the predaceous mite Neoseiulus californicus (McGregor (Acari: phytoseiidae

    Directory of Open Access Journals (Sweden)

    Marcos Zatti da Silva

    2007-04-01

    Full Text Available O objetivo do trabalho foi avaliar a toxicidade residual de alguns agrotóxicos utilizados em citros sobre Neoseiulus californicus (McGregor em condições de laboratório. O método de bioensaio adotado foi o de contato residual. Folhas de citros da variedade Pêra, acondicionadas em arenas, foram pulverizadas em torre de Potter. A toxicidade residual dos produtos foi avaliada duas horas e 1; 3; 5; 7; 10; 14 e 21 dias após a aplicação. Em cada arena, foram transferidas dez fêmeas adultas de N. californicus, juntamente com uma quantidade suficiente de Tetranychus urticae, como fonte de alimento. As avaliações de mortalidade foram realizadas 72 horas após a transferência dos ácaros para as arenas. Os agrotóxicos acrinathrin, deltamethrin, dinocap, enxofre, fenpropathrin, óxido de fenbutatin e propargite não causaram mortalidades significativas em adultos de N. californicus. Foram registradas mortalidades de 29,8; 24,0 e 34,1% para ácaros N. californicus expostos a resíduos de duas horas de idade de abamectim, azocyclotin e cyhexatin, respectivamente. Dicofol, pyridaben e chlorfenapyr causaram 100% de mortalidade aos ácaros predadores expostos aos resíduos tóxicos dos acaricidas, com duas horas de idade. Abamectin provocou mortalidade significativa por um período inferior a um dia. Resíduos dos acaricidas azocyclotin, cyhexatin, dicofol, pyridaben e chlorfenapyr provocaram mortalidades significativas por períodos de 1; 1; 10; 10 e 21dias, respectivamente. Os resultados obtidos no presente experimento servem de subsídio para a escolha adequada dos agrotóxicos a serem utilizados em pomares de citros nos quais N. californicus esteja presente ou naqueles em que o predador venha a ser liberado. Esses resultados também servem para a escolha do momento mais favorável para a liberação dos ácaros predadores dessa espécie no campo, após a aplicação de agrotóxicos nos pomares. Estudos conduzidos em condições de campo ainda s

  12. Clinical Relevance of <em>CDH1em> and <em>CDH13em> DNA-Methylation in Serum of Cervical Cancer Patients

    Directory of Open Access Journals (Sweden)

    Günther K. Bonn

    2012-07-01

    Full Text Available This study was designed to investigate the DNA-methylation status of <em>E>-cadherin (<em>CDH1em> and <em>H>-cadherin (<em>CDH13em> in serum samples of cervical cancer patients and control patients with no malignant diseases and to evaluate the clinical utility of these markers. DNA-methylation status of <em>CDH1em> and <em>CDH13em> was analyzed by means of MethyLight-technology in serum samples from 49 cervical cancer patients and 40 patients with diseases other than cancer. To compare this methylation analysis with another technique, we analyzed the samples with a denaturing high performance liquid chromatography (DHPLC PCR-method. The specificity and sensitivity of <em>CDH1em> DNA-methylation measured by MethyLight was 75% and 55%, and for <em>CDH13em> DNA-methylation 95% and 10%. We identified a specificity of 92.5% and a sensitivity of only 27% for the <em>CDH1em> DHPLC-PCR analysis. Multivariate analysis showed that serum <em>CDH1em> methylation-positive patients had a 7.8-fold risk for death (95% CI: 2.2–27.7; <em>p> = 0.001 and a 92.8-fold risk for relapse (95% CI: 3.9–2207.1; <em>p> = 0.005. We concluded that the serological detection of <em>CDH1em> and <em>CDH13em> DNA-hypermethylation is not an ideal diagnostic tool due to low diagnostic specificity and sensitivity. However, it was validated that <em>CDH1em> methylation analysis in serum samples may be of potential use as a prognostic marker for cervical cancer patients.

  13. Fumigant Antifungal Activity of Myrtaceae Essential Oils and Constituents from <em>Leptospermum petersoniiem> against Three <em>Aspergillus> Species

    Directory of Open Access Journals (Sweden)

    Il-Kwon Park

    2012-09-01

    Full Text Available Commercial plant essential oils obtained from 11 Myrtaceae plant species were tested for their fumigant antifungal activity against <em>Aspergillus ochraceusem>, <em>A. flavusem>, and <em>A. nigerem>. Essential oils extracted from<em> em>Leptospermum> <em>petersonii> at air concentrations of 56 × 10−3 mg/mL and 28 × 10−3 mg/mL completely inhibited the growth of the three <em>Aspergillus> species. However, at an air concentration of 14 × 10−3 mg/mL, inhibition rates of <em>L. petersoniiem> essential oils were reduced to 20.2% and 18.8% in the case of <em>A. flavusem> and <em>A. nigerem>, respectively. The other Myrtaceae essential oils (56 × 10−3 mg/mL only weakly inhibited the fungi or had no detectable affect. Gas chromatography-mass spectrometry analysis identified 16 compounds in <em>L. petersoniiem>> em>essential> em>oil.> em>The antifungal activity of the identified compounds was tested individually by using standard or synthesized compounds. Of these, neral and geranial inhibited growth by 100%, at an air concentration of 56 × 10−3 mg/mL, whereas the activity of citronellol was somewhat lover (80%. The other compounds exhibited only moderate or weak antifungal activity. The antifungal activities of blends of constituents identified in <em>L. petersoniiem> oil indicated that neral and geranial were the major contributors to the fumigant and antifungal activities.

  14. Desempenho do programa BABSIM no estudo epidemiológico de Boophilus microplus (Canestrini, 1889 (Acari: Ixodidae

    Directory of Open Access Journals (Sweden)

    Fonseca A.H.

    2000-01-01

    Full Text Available Os modelos de simulação são ferramentas úteis na análise das inter-relações bioecológicas dos carrapatos. Partindo dessa premissa, objetivou-se avaliar o desempenho do programa BABSIM como auxiliar no estudo epidemiológico de B. microplus para o Estado de Minas Gerais, validando-se os ajustes no programa pela análise comparativa das curvas populacionais observadas e simuladas em Pedro Leopoldo e São Miguel do Anta, MG. As simulações foram realizadas com o programa BABSIM utilizando-se os parâmetros biológicos originais do programa e com ajustes nas temperaturas mínimas para oviposição e incubação dos ovos, no índice de encontro do hospedeiro pelas larvas, e no índice de sobrevivência dos estádios de vida livre. Os ajustes nos parâmetros biológicos propiciaram aumento na intensidade da carga parasitária, porém não foram suficientes para representar com maior precisão a dinâmica populacional no ecossistema em São Miguel do Anta. As simulações procedidas com os parâmetros biológicos originais e ajustados apresentaram comportamento variável para os diferentes anos em relação aos observados no estudo experimental de Pedro Leopoldo. Apesar de os resultados das simulações terem contribuído para a análise do conjunto de variáveis que interagem para determinar as variações do tamanho das populações de carrapatos nos ecossistemas estudados, eles indicaram, também, a necessidade de introduzir modificações nos submodelos que representam as inter-relações parasito-ambiente antrópico, assim como a necessidade de modificar o programa para permitir alterações de manejo dos animais, dentro de um mesmo ano de simulação, e, dessa maneira, justificar com maior precisão a dinâmica populacional em diferentes tipos de ecossistemas.

  15. Assessment of Genetic Fidelity in <em>Rauvolfia em>s>erpentina em>Plantlets Grown from Synthetic (Encapsulated Seeds Following <em>in Vitroem> Storage at 4 °C

    Directory of Open Access Journals (Sweden)

    Mohammad Anis

    2012-05-01

    Full Text Available An efficient method was developed for plant regeneration and establishment from alginate encapsulated synthetic seeds of <em>Rauvolfia serpentinaem>. Synthetic seeds were produced using <em>in vitroem> proliferated microshoots upon complexation of 3% sodium alginate prepared in Llyod and McCown woody plant medium (WPM and 100 mM calcium chloride. Re-growth ability of encapsulated nodal segments was evaluated after storage at 4 °C for 0, 1, 2, 4, 6 and 8 weeks and compared with non-encapsulated buds. Effects of different media <em>viz>; Murashige and Skoog medium; Lloyd and McCown woody Plant medium, Gamborg’s B5 medium and Schenk and Hildebrandt medium was also investigated for conversion into plantlets. The maximum frequency of conversion into plantlets from encapsulated nodal segments stored at 4 °C for 4 weeks was achieved on woody plant medium supplement with 5.0 μM BA and 1.0 μM NAA. Rooting in plantlets was achieved in half-strength Murashige and Skoog liquid medium containing 0.5 μM indole-3-acetic acid (IAA on filter paper bridges. Plantlets obtained from stored synseeds were hardened, established successfully <em>ex vitroem> and were morphologically similar to each other as well as their mother plant. The genetic fidelity of <em>Rauvolfia em>clones raised from synthetic seeds following four weeks of storage at 4 °C were assessed by using random amplified polymorphic<em> em>DNA (RAPD and inter-simple sequence repeat<em> em>(ISSR markers. All the RAPD and ISSR profiles from generated plantlets were monomorphic and comparable<em> em>to the mother plant, which confirms the genetic<em> em>stability among the clones. This synseed protocol could be useful for establishing a particular system for conservation, short-term storage and production of genetically identical and stable plants before it is released for commercial purposes.

  16. The EM Earthquake Precursor

    Science.gov (United States)

    Jones, K. B., II; Saxton, P. T.

    2013-12-01

    Many attempts have been made to determine a sound forecasting method regarding earthquakes and warn the public in turn. Presently, the animal kingdom leads the precursor list alluding to a transmission related source. By applying the animal-based model to an electromagnetic (EM) wave model, various hypotheses were formed, but the most interesting one required the use of a magnetometer with a differing design and geometry. To date, numerous, high-end magnetometers have been in use in close proximity to fault zones for potential earthquake forecasting; however, something is still amiss. The problem still resides with what exactly is forecastable and the investigating direction of EM. After the 1989 Loma Prieta Earthquake, American earthquake investigators predetermined magnetometer use and a minimum earthquake magnitude necessary for EM detection. This action was set in motion, due to the extensive damage incurred and public outrage concerning earthquake forecasting; however, the magnetometers employed, grounded or buried, are completely subject to static and electric fields and have yet to correlate to an identifiable precursor. Secondly, there is neither a networked array for finding any epicentral locations, nor have there been any attempts to find even one. This methodology needs dismissal, because it is overly complicated, subject to continuous change, and provides no response time. As for the minimum magnitude threshold, which was set at M5, this is simply higher than what modern technological advances have gained. Detection can now be achieved at approximately M1, which greatly improves forecasting chances. A propagating precursor has now been detected in both the field and laboratory. Field antenna testing conducted outside the NE Texas town of Timpson in February, 2013, detected three strong EM sources along with numerous weaker signals. The antenna had mobility, and observations were noted for recurrence, duration, and frequency response. Next, two

  17. Classe social: conceitos e esquemas operacionais em pesquisa em saude

    Directory of Open Access Journals (Sweden)

    Rita Barradas Barata

    2013-08-01

    Full Text Available Discute-se a utilização do conceito de classe em pesquisas em saúde, as diferentes abordagens sociológicas de estratificação social e de estrutura de classes, o potencial explicativo do conceito em estudos de determinação social e desigualdades em saúde, os modelos de operacionalização elaborados para uso em pesquisas sociológicas, demográficas ou de saúde e os limites e possibilidades desses modelos. Foram destacados quatro modelos de operacionalização: de Singer para estudo da distribuição de renda no Brasil, adaptado por Barros para uso em pesquisas epidemiológicas; de Bronfman & Tuirán para o censo demográfico mexicano, adaptado por Lombardi et al para pesquisas epidemiológicas; de Goldthorpe para estudos socioeconômicos ingleses, adaptado pela Sociedade Espanhola de Epidemiologia; e o modelo de Wright para pesquisa em sociologia e ciência política, também usado em inquéritos populacionais em saúde. Em conclusão, conceitualmente cada um dos modelos apresentados é coerente com a concepção teórica que os embasam, mas não há como optar por qualquer deles, descartando os demais.

  18. Efecto de extractos vegetales de <em>Polygonum hydropiperoidesem>, <em>Solanum nigrumem> y <em>Calliandra pittieriem> sobre el gusano cogollero (<em>Spodoptera frugiperdaem>

    Directory of Open Access Journals (Sweden)

    Lizarazo H. Karol

    2008-12-01

    Full Text Available

    El gusano cogollero <em>Spodoptera frugiperdaem> es una de las plagas que más afectan los cultivos en la región de Sumapaz (Cundinamarca, Colombia. En la actualidad se controla principalmente aplicando productos de síntesis química, sin embargo la aplicación de extractos vegetales surge como una alternativa de menor impacto sobre el ambiente. Este control se emplea debido a que las plantas contienen metabolitos secundarios que pueden inhibir el desarrollo de los insectos. Por tal motivo, la presente investigación evaluó el efecto insecticida y antialimentario de extractos vegetales de barbasco <em>Polygonum hydropiperoidesem> (Polygonaceae, carbonero <em>Calliandra pittieriem> (Mimosaceae y hierba mora <em>Solanum nigrumem> (Solanaceae sobre larvas de <em>S. frugiperdaem> biotipo maíz. Se estableció una cría masiva del insecto en el laboratorio utilizando una dieta natural con hojas de maíz. Posteriormente se obtuvieron extractos vegetales utilizando solventes de alta polaridad (agua y etanol y media polaridad (diclorometano los cuales se aplicaron sobre las larvas de segundo instar. Los resultados más destacados se presentaron con extractos de <em>P. hydropiperoidesem>, obtenidos con diclorometano en sus diferentes dosis, con los cuales se alcanzó una mortalidad de 100% 12 días después de la aplicación y un efecto antialimentario representado por un consumo de follaje de maíz inferior al 4%, efectos similares a los del testigo comercial (Clorpiriphos.

  19. Poesia em Revista: Oroboro

    Directory of Open Access Journals (Sweden)

    Helena Alves Gouveia

    2008-10-01

    Full Text Available http://dx.doi.org/10.5007/1984-784x.2008v8n12p38 A serpente que engole a si mesma é uma figura curiosa do simbolismo de um processo de contínua transformação, de um movimento circular incessante, rumo à infinitude, sem traços de fim ou começo. Oroboro é um nome de origem grega que remete a esta serpente que se morde e penetra em si mesma ao engolir o próprio rabo. Mas também é o nome da revista de cultura editada em Curitiba pelos artistas-editores Ricardo Corona e Eliana Borges.

  20. Hipervitaminose D em animais

    Directory of Open Access Journals (Sweden)

    Paulo V. Peixoto

    2012-07-01

    Full Text Available Por meio de revisão da literatura, são apresentados dados referentes ao metabolismo da vitamina D, bem como aos principais aspectos toxicológicos, clínicos, bioquímicos, macroscópicos, microscópicos, ultraestruturais, imuno-histoquímicos e radiográficos de animais intoxicados natural e experimentalmente por essa vitamina, em diferentes espécies. Este estudo objetiva demonstrar a existência de muitas lacunas no conhecimento sobre mineralização fisiológica e patológica, em especial na mediação hormonal do fenômeno, bem como alertar para os riscos de ocorrência dessa intoxicação.

  1. A democracia em Cuba

    OpenAIRE

    Zaldívar, Julio César Guanche

    2011-01-01

    O triunfo revolucionário de 1959 consagrou em Cuba um novo conceito de democracia, com o intuito de garantir o acesso à vida política ativa de grandes setores da população, antes excluídos. Para isso, foi desenvolvida uma política de inclusão social com caráter universal. A prática política popular deixou as riquezas do país em mãos da população carente e gerou uma grande mobilidade social, fato que foi central para o aumento da participação popular. O contexto de agressão imperialista e o pr...

  2. Tuberculose Infantil em Portugal

    OpenAIRE

    Carapau, João

    2014-01-01

    Dos números recentemente publicados pela Direcção Geral da Saúde / Núcleo de Tuberculose e Doenças Respiratórias relativos aos anos de 1992 e 1993 e pelo Instituto Nacional de Estatística relativos a 1994, conclui-se que os casos de Tuberculose (TB) notificados pouco têm decrescido nos últimos 15 anos: descida média anual de 6,3% para os casos em geral e 14% para os menores de 15 anos; a taxa global de incidência apurada em 1994 voltou a subir — 51,1 (52,4 no Continente). Para o autor a me...

  3. Universidade em ruinas?

    OpenAIRE

    Katuta, Ângela Massumi; UEL/CCE/Departamento de Geociências

    2010-01-01

    A Universidade, desde as suas origens no século XII, sempre esteve atrelada a instituições e setores hegemônicos da sociedade. Segundo Trindade (2000), a sua “invenção” ocorreu em plena Idade Média na Europa, sob a proteção da Igreja romana, sendo que as Universidades de Bolonha (1108) e Paris (1211) foram as primeiras a serem criadas 

  4. Rapid Development of Microsatellite Markers with 454 Pyrosequencing in a Vulnerable Fish<em>,> the Mottled Skate<em>, Raja em>pulchra>

    Directory of Open Access Journals (Sweden)

    Jung-Ha Kang

    2012-06-01

    Full Text Available The mottled skate, <em>Raja pulchraem>, is an economically valuable fish. However, due to a severe population decline, it is listed as a vulnerable species by the International Union for Conservation of Nature. To analyze its genetic structure and diversity, microsatellite markers were developed using 454 pyrosequencing. A total of 17,033 reads containing dinucleotide microsatellite repeat units (mean, 487 base pairs were identified from 453,549 reads. Among 32 loci containing more than nine repeat units, 20 primer sets (62% produced strong PCR products, of which 14 were polymorphic. In an analysis of 60 individuals from two <em>R. pulchra em>populations, the number of alleles per locus ranged from 1–10, and the mean allelic richness was 4.7. No linkage disequilibrium was found between any pair of loci, indicating that the markers were independent. The Hardy–Weinberg equilibrium test showed significant deviation in two of the 28 single-loci after sequential Bonferroni’s correction. Using 11 primer sets, cross-species amplification was demonstrated in nine related species from four families within two classes. Among the 11 loci amplified from three other <em>Rajidae> family species; three loci were polymorphic. A monomorphic locus was amplified in all three <em>Rajidae> family species and the <em>Dasyatidae> family. Two <em>Rajidae> polymorphic loci amplified monomorphic target DNAs in four species belonging to the Carcharhiniformes class, and another was polymorphic in two Carcharhiniformes species.

  5. Acarofauna em plantas ornamentais

    Directory of Open Access Journals (Sweden)

    Jania Claudia Camilo dos Santos

    2014-10-01

    Full Text Available Normal 0 21 false false false PT-BR X-NONE X-NONE O cultivo e o comercio de plantas ornamentais vem cada vez mais ganhando espaço no Brasil, pela grande variedade das espécies existentes e exuberância de suas flores, que oferecem uma maior riqueza ao local. Dessa forma, o objetivo desse trabalho foi realizar o levantamento da população de ácaros associados às plantas ornamentais no município de Arapiraca-AL, em função dos diversos problemas acarretados por essa espécie. O levantamento foi realizado entre os meses de abril a março, através de amostragens mensais de folhas coletadas da parte basal, intermediária e apical de plantas existentes em praças e jardins. Foram coletados 55 ácaros pertencentes à ordem Prostigmata em 20 famílias de plantas. As plantas com as maiores riquezas de ácaros foram as Coleus blumei L. e Bxuxus sempervirens L., que apresentaram 65% dos valores amostrais. Analisando-se as coletas realizadas, pode-se observar que houve uma maior incidência populacional de ácaros na coleta do mês de maio, cuja percentagem foi de 36% de ácaros levantados, sendo que no levantamento dos dados amostrais de março a percentagem encontrada foi de 14%, nas amostragens dos meses de abril e junho, a percentagem amostrada dos dados foi de 22 e 28%, respectivamente. O estudo do levantamento de ácaros em plantas ornamentais permitiu observar a relação entre ácaros e a relação com a planta hospedeira, facilitando posteriormente um estudo mais aprofundado sobre plantas hospedeiras, e pode-se observar que em períodos chuvosos ocorre uma menor incidência populacional.

  6. Effects of powdery mildew fungicide programs on twospotted spider mite (Acari: Tetranychidae), hop aphid (Hemiptera: Aphididae), and their natural enemies in hop yards.

    Science.gov (United States)

    Gent, D H; James, D G; Wright, L C; Brooks, D J; Barbour, J D; Dreves, A J; Fisher, G C; Walton, V M

    2009-02-01

    Twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), and hop aphid, Phorodon humuli (Schrank) (Hemiptera: Aphididae), are the most important arthropod pests of hop (Humulus lupulus L.) in the Northern Hemisphere. A potential barrier for greater adoption of conservation biological control strategies for spider mites and hop aphid is the extensive use of fungicides for management of hop powdery mildew, Podosphaera macularis (Wallr.:Fr.) U. Braun & S. Takamatsu. Field studies conducted in experimental plots in Oregon and Washington in 2005 and 2006 quantified the effects of powdery mildew fungicide programs (i.e., sulfur, paraffinic oil, and synthetic fungicides) on arthropod pests and natural enemies on hop. Fungicide treatment significantly affected spider mite populations in all four studies. Multiple applications of sulfur fungicides applied before burr development resulted in 1.4-3.3-fold greater spider mite populations during summer. Near the cessation of the sulfur applications, or after a lag of 20-30 d, spider mite populations increased significantly faster on sulfur treated plants compared with water-treated plants in three of four experiments. The effect of paraffinic oil on spider mites was varied, leading to exacerbation of spider mites in Oregon and Washington in 2005, suppression of mites in Oregon in 2006, and no significant effect compared with water in Washington in 2006. Significant relative treatment effects for cone damage due to spider mite feeding were detected in Oregon in 2005 in plots treated with sulfur and paraffinic oil compared with water and synthetic fungicides. Mean populations of hop aphids were similar among treatments in Oregon, although sulfur treatment suppressed hop aphid populations in Washington in 2005 and 2006. Populations of individual predacious insect species and cumulative abundance of macropredators were not consistently suppressed or stimulated by treatments in all trials. However, predatory mite

  7. How <em>Varroa> Parasitism Affects the Immunological and Nutritional Status of the Honey Bee, <em>Apis melliferaem>

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    Katherine A. Aronstein

    2012-06-01

    Full Text Available We investigated the effect of the parasitic mite <em>Varroa destructorem> on the immunological and nutritional condition of honey bees, <em>Apis melliferaem>, from the perspective of the individual bee and the colony. Pupae, newly-emerged adults and foraging adults were sampled from honey bee colonies at one site in S. Texas, USA. <em>Varroa>‑infested bees displayed elevated titer of Deformed Wing Virus (DWV, suggestive of depressed capacity to limit viral replication. Expression of genes coding three anti-microbial peptides (<em>defensin1, abaecin, hymenoptaecinem> was either not significantly different between <em>Varroa>-infested and uninfested bees or was significantly elevated in <em>Varroa>-infested bees, varying with sampling date and bee developmental age. The effect of <em>Varroa> on nutritional indices of the bees was complex, with protein, triglyceride, glycogen and sugar levels strongly influenced by life-stage of the bee and individual colony. Protein content was depressed and free amino acid content elevated in <em>Varroa>-infested pupae, suggesting that protein synthesis, and consequently growth, may be limited in these insects. No simple relationship between the values of nutritional and immune-related indices was observed, and colony-scale effects were indicated by the reduced weight of pupae in colonies with high <em>Varroa> abundance, irrespective of whether the individual pupa bore <em>Varroa>.

  8. Synthesis and Spectroscopic Analysis of Novel 1<em>H-Benzo[d>]imidazoles Phenyl Sulfonylpiperazines

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    Amjad M. Qandil

    2012-05-01

    Full Text Available A group of benzimidazole analogs of sildenafil, 3-benzimidazolyl-4-methoxy-phenylsulfonylpiperazines 2–4 and 3-benzimidazolyl-4-methoxy-<em>N,N>-dimethyl- benzenesulfonamide (5, were efficiently synthesized. Compounds 2–5 were characterized by NMR and MS and contrary to the reported mass spectra of sildenafil, the spectra of the piperazine-containing compounds 2–4 showed a novel fragmentation pattern leading to an <em>m/z> = 316. A mechanism for the formation of this fragment was proposed.

  9. Anestesia Diploica em Endodontia

    OpenAIRE

    Macedo, Ricardo Ribeiro Veiga de

    2013-01-01

    Trabalho final do 5º ano com vista à atribuição do grau de mestre no âmbito do ciclo de estudos de Mestrado Integrado em Medicina Dentária apresentado à Faculdade de Medicina da Universidade de Coimbra. Objetivos Comparar a eficácia das técnicas de anestesia convencionais, a anestesia infiltrativa periapical, com a anestesia diploica. Metodologia Foram selecionados 32 voluntários, saudáveis, aos quais foram administradas ambas as técnicas anestésicas no dente 1.4. Numa primeira fase os...

  10. Burnout em Cuidadores Formais

    OpenAIRE

    Silva, Juliana Marisa Fernandes

    2016-01-01

    Dissertação apresentada à Universidade Fernando Pessoa como parte dos requisitos para a obtenção do grau de Mestre em Psicologia, ramo de Psicologia Clínica e da Saúde Este estudo é sobre a Síndrome de Burnout e teve como objetivo geral compreender se o Burnout está presente nos cuidadores formais da Santa Casa da Misericórdia de Castelo de Paiva e quais as variáveis socioprofissionais que poderão exercer influência no seu aparecimento. Pretendeu-se avaliar o Burnout dos cuidadores a tr...

  11. Antioxidant Profile of <em>Trifolium pratenseem> L.

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    Heidy Schwartsova

    2012-09-01

    Full Text Available In order to examine the antioxidant properties of five different extracts of <em>Trifolium pratenseem> L. (Leguminosae leaves, various assays which measure free radical scavenging ability were carried out: 1,1-diphenyl-2-picrylhydrazyl, hydroxyl, superoxide anion and nitric oxide radical scavenger capacity tests and lipid peroxidation assay. In all of the tests, only the H2O and (to some extent the EtOAc extracts showed a potent antioxidant effect compared with BHT and BHA, well-known synthetic antioxidants. In addition, <em>in vivo em>experiments were conducted with antioxidant systems (activities of GSHPx, GSHR, Px, CAT, XOD, GSH content and intensity of LPx in liver homogenate and blood of mice after their treatment with extracts of <em>T. pratenseem> leaves, or in combination with CCl4. Besides, in the extracts examined the total phenolic and flavonoid amounts were also determined, together with presence of the selected flavonoids: quercetin, luteolin, apigenin, naringenin and kaempferol, which were studied using a HPLC-DAD technique. HPLC-DAD analysis showed a noticeable content of natural products according to which the examined <em>Trifolium pratenseem> species could well be regarded as a promising new source of bioactive natural compounds, which can be used both as a food supplement and a remedy.

  12. Proximate Composition, Nutritional Attributes and Mineral Composition of <em>Peperomia> <em>pellucida> L. (Ketumpangan Air Grown in Malaysia

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    Maznah Ismail

    2012-09-01

    Full Text Available This study presents the proximate and mineral composition of <em>Peperomia> <em>pellucida> L., an underexploited weed plant in Malaysia. Proximate analysis was performed using standard AOAC methods and mineral contents were determined using atomic absorption spectrometry. The results indicated <em>Peperomia> <em>pellucida> to be rich in crude protein, carbohydrate and total ash contents. The high amount of total ash (31.22% suggests a high-value mineral composition comprising potassium, calcium and iron as the main elements. The present study inferred that <em>Peperomia> <em>pellucida> would serve as a good source of protein and energy as well as micronutrients in the form of a leafy vegetable for human consumption.

  13. O insight em psiquiatria

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    Ana Margarida P. Cardoso

    2008-12-01

    Full Text Available O sinal de que algo está a acontecer contribui para que o paciente reconheça que alguma coisa de estranho se está a passar consigo. Este reconhecimento faz com que o sujeito possa desempenhar uma função activa e seja um elemento colaborante do seu processo de recuperação. Cada doença apresenta, contudo, diferentes sintomas, uma vez que cada doença psiquiátrica consiste em diferentes perturbações com diversos efeitos sobre o funcionamento mental. Desta maneira, o fenómeno do insight que é registado em cada doença é diferente e expressa-se sob diferentes formas, não somente devido às manifestações clínicas da doença mas também devido às características individuais do sujeito.

  14. Antibioticos profilaticos em neurocirurgia

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    Reynaldo A. Brandt

    1979-03-01

    Full Text Available O índice de infecções pós-operatórias em pacientes neuro-cirúrgicos que receberam antibióticos profiláticos neste período foi comparado com o de pacientes que não receberam antibióticos. Infecções ocorreram em proporções significativamente maiores nos pacientes que receberam antibióticos, particularmente naqueles com afecções intracranianas graves; estas infecções foram graves e fatais na maioria dos casos. A administração de antibióticos profiláticos nestes pacientes não só foi incapaz de prevenir o aparecimento de infecções pós-operatórias, como aparentemente favoreceu o seu desenvolvimento. Tal se deveu, provavelmente, à destruição do equilíbrio microbiano no organismo, favorecendo o desenvolvimento de germes patogênicos e resistentes aos antibióticos usuais

  15. A democracia em Cuba

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    Julio César Guanche Zaldívar

    2011-01-01

    Full Text Available O triunfo revolucionário de 1959 consagrou em Cuba um novo conceito de democracia, com o intuito de garantir o acesso à vida política ativa de grandes setores da população, antes excluídos. Para isso, foi desenvolvida uma política de inclusão social com caráter universal. A prática política popular deixou as riquezas do país em mãos da população carente e gerou uma grande mobilidade social, fato que foi central para o aumento da participação popular. O contexto de agressão imperialista e o próprio desenvolvimento do processo produziram a consolidação de noções que limitaram a participação popular: o apogeu da burocracia, a compreensão da unidade como unanimidade e o seguimento, em certa medida, de correntes do marxismo soviético. Os desafios atuais para aprofundar a democracia em Cuba se apresentam em três planos: socializar o poder, promover a sociodiversidade e desenvolver a ideologia revolucionária.El triunfo revolucionario de 1959 consagró en Cuba un nuevo concepto de democracia, basado en garantizar acceso a la vida política activa a grandes sectores poblacionales, antes excluidos de ella. Para ello desarrolló una política de inclusión social con carácter universal. La práctica política popular puso las riquezas del país en manos de los desposeídos y generó gran movilidad social, hecho que resultó clave para el aumento de la participación popular. El contexto de agresión imperialista y el propio desarrollo del proceso produjo el afianzamiento de nociones que limitaron la participación popular: el auge de la burocracia, la comprensión de la unidad como unanimidad y el seguimiento, en parte, de corrientes del marxismo soviético. Los desafíos actuales se presentan en tres planos para profundizar la democracia en Cuba: socializar el poder, promover la sociodiversidad y desarrollar la ideología revolucionaria.The revolutionary triumph of 1959 established in Cuba a new concept of democracy, one that

  16. Identified EM Earthquake Precursors

    Science.gov (United States)

    Jones, Kenneth, II; Saxton, Patrick

    2014-05-01

    Many attempts have been made to determine a sound forecasting method regarding earthquakes and warn the public in turn. Presently, the animal kingdom leads the precursor list alluding to a transmission related source. By applying the animal-based model to an electromagnetic (EM) wave model, various hypotheses were formed, but the most interesting one required the use of a magnetometer with a differing design and geometry. To date, numerous, high-end magnetometers have been in use in close proximity to fault zones for potential earthquake forecasting; however, something is still amiss. The problem still resides with what exactly is forecastable and the investigating direction of EM. After a number of custom rock experiments, two hypotheses were formed which could answer the EM wave model. The first hypothesis concerned a sufficient and continuous electron movement either by surface or penetrative flow, and the second regarded a novel approach to radio transmission. Electron flow along fracture surfaces was determined to be inadequate in creating strong EM fields, because rock has a very high electrical resistance making it a high quality insulator. Penetrative flow could not be corroborated as well, because it was discovered that rock was absorbing and confining electrons to a very thin skin depth. Radio wave transmission and detection worked with every single test administered. This hypothesis was reviewed for propagating, long-wave generation with sufficient amplitude, and the capability of penetrating solid rock. Additionally, fracture spaces, either air or ion-filled, can facilitate this concept from great depths and allow for surficial detection. A few propagating precursor signals have been detected in the field occurring with associated phases using custom-built loop antennae. Field testing was conducted in Southern California from 2006-2011, and outside the NE Texas town of Timpson in February, 2013. The antennae have mobility and observations were noted for

  17. Osteoporose em caprinos

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    Fábio B. Rosa

    2013-04-01

    Full Text Available Foi realizado um estudo de casos de osteoporose em caprinos provenientes de uma propriedade na área de abrangência do LPV-UFSM, determinando a epidemiologia, o quadro clínico-patológico e discutindo os prováveis mecanismos patogenéticos. Cinco cabras, fêmeas, SRD, de seis meses a seis anos de idade foram afetadas. As cabras eram mantidas em campo nativo, sem suplementação com ração e sob superlotação. Os principais sinais clínicos foram emagrecimento, dificuldade de locomoção e permanência em decúbito por longos períodos. As principais alterações macroscópicas nos ossos examinados foram vistas nas superfícies de corte e caracterizavam-se por depleção do osso esponjoso (porosidade e redução acentuada da espessura do osso cortical. Havia também marcada atrofia serosa da gordura da medula óssea. Microscopicamente, nas regiões avaliadas (úmero proximal, rádio distal, fêmur distal, tíbia proximal e corpos das vértebras lombares foi observada redução moderada a acentuada do número e da espessura das trabéculas ósseas nas epífises e metáfises dos ossos longos e nos corpos vertebrais. Os achados clínico-patológicos indicaram que a osteoporose observada provavelmente foi causada pela desnutrição. As alterações ósseas (diminuição no número e na espessura das trabéculas do osso esponjoso sugerem que ambos os mecanismos, má formação óssea e reabsorção óssea aumentada, contribuíram para a ocorrência de osteoporose nos caprinos deste estudo.

  18. Four Novel Cellulose Synthase (CESA Genes from <em>Birch> (<em>Betula platyphylla em>Suk. Involved in Primary and Secondary Cell Wall Biosynthesis

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    Xuemei Liu

    2012-09-01

    Full Text Available Cellulose synthase (CESA, which is an essential catalyst for the generation of plant cell wall biomass, is mainly encoded by the <em>CesA> gene family that contains ten or more members. In this study; four full-length cDNAs encoding CESA were isolated from<em> Betula platyphyllaem> Suk., which is an important timber species, using RT-PCR combined with the RACE method and were named as <em>BplCesA3em>, <em>−4em>,> −7 em>and> −8em>. These deduced CESAs contained the same typical domains and regions as their <em>Arabidopsis> homologs. The cDNA lengths differed among these four genes, as did the locations of the various protein domains inferred from the deduced amino acid sequences, which shared amino acid sequence identities ranging from only 63.8% to 70.5%. Real-time RT-PCR showed that all four <em>BplCesAs> were expressed at different levels in diverse tissues. Results indicated that BplCESA8 might be involved in secondary cell wall biosynthesis and floral development. BplCESA3 appeared in a unique expression pattern and was possibly involved in primary cell wall biosynthesis and seed development; it might also be related to the homogalacturonan synthesis. BplCESA7 and BplCESA4 may be related to the formation of a cellulose synthase complex and participate mainly in secondary cell wall biosynthesis. The extremely low expression abundance of the four BplCESAs in mature pollen suggested very little involvement of them in mature pollen formation in <em>Betula>. The distinct expression pattern of the four <em>BplCesAs> suggested they might participate in developments of various tissues and that they are possibly controlled by distinct mechanisms in <em>Betula.>

  19. <em>N>-Substituted 5-Chloro-6-phenylpyridazin-3(2<em>H>-ones: Synthesis, Insecticidal Activity Against <em>Plutella xylostella em>(L. and SAR Study

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    Song Yang

    2012-08-01

    Full Text Available A series of <em>N>-substituted 5-chloro-6-phenylpyridazin-3(2<em>H>-one derivatives were synthesized based on our previous work; all compounds were characterized by spectral data and tested for <em>in vitroem> insecticidal activity against <em>Plutella xylostellaem>. The results showed that the synthesized pyridazin-3(2<em>H>-one compounds possessed good insecticidal activities, especially the compounds 4b, 4d, and 4h which showed > 90% activity at 100 mg/L. The structure-activity relationships (SAR for these compounds were also discussed.

  20. INDICADORES EM SANEAMENTO

    OpenAIRE

    Costa, Samuel Alves Barbi; Côrtes, Larissa Silveira; Coelho Netto, Taiana; Freitas Junior, Moacyr Moreira de

    2016-01-01

    Este artigo se propõe a analisar a evolução dos prestadores de serviços de saneamento do estado de MinasGerais entre os anos de 2005 e 2010 com base nos indicadores do Sistema Nacional de Informações em Saneamento(SNIS). Foram definidos parâmetros técnicos para a análise dos indicadores, classificados os resultados como satisfatórios(verdes) ou insatisfatórios (vermelhos). Esta categorização atende a concepção da Regulação Sunshine, trazendo à tona omonitoramento do progresso das ações no set...

  1. Em favor da talassografia

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    Jean-Louis Boudou

    2001-01-01

    Full Text Available A Talassografia (“descrição do mar” interessa-sepelos impactos físicos, biológicos, ecológicos... culturais da violenta antropização dos ambientes costeiros (oceânicos e continentais, caracterizados pelaexigüidade, vulnerabilidade, fragilidade e plasticidade. Como o Brasil é um “país marítimo”, os geó-grafos (os talassógrafos brasileiros são convidadosa intensificar suas pesquisas nas áreas costeiras e acriar novas estruturas para divulgá-las: Revista, Encontros, Associação, Pós-Graduação... tudo em prolda talassografia.

  2. Primera aproximacion a la Paleoentomología de los yacimientos de la Sierra de Atapuerca (Burgos, España: la fauna subfósil de Oribátidos (Acari, Oribatida

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    Arroyo, J.

    2007-06-01

    Full Text Available The Atapuerca Quaternarian sites are of worldwide interest due to the presence of human remains belonging to the last million years. The oribatid mites (Acari, Oribatida found in several archaeological samples extracted from the Atapuerca Quaternarian deposits, have been analyzed during the 2003 excavation campaign to study the Palaeoentomology of the site. The oribatid mite fauna consists of 7 individuals, 6 of which were obtained from Gran Dolina site (about 300.000 years old and belong to families Cosmochthoniidae, Scheloribatidae, Oribatulidae and Hemileiidae. Most of the taxa were identified to species level. The results obtained were used as a basis to reconstruct the paleo-environments of the site in correspondence with the biological and ecological preferences of the taxa.

    Los yacimientos cuaternarios de la Sierra de Atapuerca ofrecen interés mundial por haber hospedado varias especies de homínidos que vivieron en el último millón de años. En este contexto, durante la campaña de excavaciones de 2003 se realizó un muestreo puntual en algunos de sus yacimientos para obtener los primeros datos de restos de artrópodos que pudieran conservarse en los mismos. En este trabajo se presentan los resultados obtenidos de ácaros subfósiles pertenecientes al suborden de los oribátidos (Acari, Oribatida. Después de procesar los sedimentos, se obtuvieron un total de 7 individuos en el conjunto de los yacimientos muestreados, de los cuales 6 aparecieron en Gran Dolina en un nivel con datación en torno a los 300.000 años. Los ejemplares, identificados en su mayoría a nivel taxonómico de especie, pertenecen a las familias Cosmochthoniidae, Scheloribatidae, Oribatulidae y Hemileiidae. Dado el conocimiento que se dispone de la biología de los taxones encontrados, que pertenecen a géneros y especies presentes en la actualidad, se han realizado inferencias sobre los ambientes pretéritos en que los animales vivieron.

  3. INFLUÊNCIA ESTOICA NA CONCEPÇÃO DE <em>STATUS> E <em>DICTUM> COMO <em> QUASI RES EM> (ὡσανεì τινά EM ABERLARDO STOIC INFLUENCE IN ABELARD'S CONCEPTION OF <em>STATUS> AND <em>DICTUM> AS <em>QUASI RESem> (ὡσανεì τινά.

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    Guy Hamelin

    2011-09-01

    Full Text Available Na sua obra, Pedro Abelardo (1079-1142 destaca duas noções metafísicas que fundamentam sua teoria lógica: o <em style="mso-bidi-font-style: normal;">statusem> e o <em style="mso-bidi-font-style: normal;">dictum propositionisem>, ao causar, respectivamente, a imposição (<em style="mso-bidi-font-style: normal;">impositioem> dos termos universais e o valor de verdade das proposições. Trata-se de expressões que se referem a naturezas ontológicas peculiares, na medida em que não são consideradas coisas (<em style="mso-bidi-font-style: normal;">resem>, mesmo que constituem causas. Todavia, também não são nada. Abelardo as chama de ‘quase coisas’ (<em style="mso-bidi-font-style: normal;">quasi resem>. No presente artigo, explicamos, primeiro, essas duas noções essenciais da lógica abelardiana, antes de tentar, em seguida, encontrar a fonte dessa metafísica particular. Em oposição a comentadores importantes da lógica de Abelardo, que estimam que haja uma forte influência platônica sobre essa concepção específica, defendemos antes, com apoio de textos significativos e de acordo com o nominalismo abelardiano, que a maior ascendência sobre a metafísica do nosso autor é a do estoicismo, sobretudo, antigo.In his work, Peter Abelard (1079-1142 highlights two metaphysical notions, which sustain his logical theory: the <em>status> and the <em>dictum propositionisem>, causing respectively both the imposition (<em>impositio> of universal terms and the thuth-value of propositions. Both expressions refer to peculiar ontological natures, in so far as they are not considered things (<em>res>, even if they constitute causes. Nevertheless, neither are they ‘nothing’. Abelard calls them ‘quasi-things’ (<em>quasi resem>. In the present article, we expound first these two essential notions of Abelardian logic before then trying to find the source of this particular metaphysics. Contrary to some important

  4. Ploidia de DNA em astrocitomas: estudo em 66 pacientes brasileiros

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    KRUTMAN-ZVEIBIL DEBORAH

    1999-01-01

    Full Text Available A determinação do conteúdo de DNA nuclear (fração de fase S e ploidia de DNA foi realizada por meio de análise de imagem em 66 astrocitomas, a partir de material fixado em formalina e seccionado em cortes de 5 micrômetros corados pela técnica de Feulgen. Nossos resultados mostraram forte relação entre a idade do paciente, grau histológico e sobrevida , com a ploidia de DNA e o percentual de células em fase de síntese. A análise da atividade proliferativa de astrocitomas intracranianos é a nosso ver muito útil no entendimento do comportamento biológico , do prognóstico e para o planejamento terapêutico dessas lesões.

  5. Busca de estruturas em grandes escalas em altos redshifts

    Science.gov (United States)

    Boris, N. V.; Sodré, L., Jr.; Cypriano, E.

    2003-08-01

    A busca por estruturas em grandes escalas (aglomerados de galáxias, por exemplo) é um ativo tópico de pesquisas hoje em dia, pois a detecção de um único aglomerado em altos redshifts pode por vínculos fortes sobre os modelos cosmológicos. Neste projeto estamos fazendo uma busca de estruturas distantes em campos contendo pares de quasares próximos entre si em z Â3 0.9. Os pares de quasares foram extraídos do catálogo de Véron-Cetty & Véron (2001) e estão sendo observados com os telescópios: 2,2m da University of Hawaii (UH), 2,5m do Observatório de Las Campanas e com o GEMINI. Apresentamos aqui a análise preliminar de um par de quasares observado nos filtros i'(7800 Å) e z'(9500 Å) com o GEMINI. A cor (i'-z') mostrou-se útil para detectar objetos "early-type" em redshifts menores que 1.1. No estudo do par 131046+0006/J131055+0008, com redshift ~ 0.9, o uso deste método possibilitou a detecção de sete objetos candidatos a galáxias "early-type". Num mapa da distribuição projetada dos objetos para 22 escala. Um outro argumento em favor dessa hipótese é que eles obedecem uma relação do tipo Kormendy (raio equivalente X brilho superficial dentro desse raio), como a apresentada pelas galáxias elípticas em z = 0.

  6. Extraction of Dihydroquercetin<em> em>from <em>Larix gmeliniem>i> em>with Ultrasound-Assisted and Microwave-Assisted Alternant Digestion

    Directory of Open Access Journals (Sweden)

    Yuangang Zu

    2012-07-01

    Full Text Available An ultrasound and microwave assisted alternant extraction method (UMAE was applied for extracting dihydroquercetin (DHQ from <em>Larix gmeliniem>i> wood. This investigation was conducted using 60% ethanol as solvent, 1:12 solid to liquid ratio, and 3 h soaking time. The optimum treatment time was ultrasound 40 min, microwave 20 min, respectively, and the extraction was performed once. Under the optimized conditions, satisfactory extraction yield of the target analyte was obtained. Relative to ultrasound-assisted or microwave-assisted method, the proposed approach provides higher extraction yield. The effect of DHQ of different concentrations and synthetic antioxidants on oxidative stability in soy bean oil stored for 20 days at different temperatures (25 °C and 60 °C was compared. DHQ was more effective in restraining soy bean oil oxidation, and a dose-response relationship was observed. The antioxidant activity of DHQ was a little stronger than that of BHA and BHT. Soy bean oil supplemented with 0.08 mg/g DHQ exhibited favorable antioxidant effects and is preferable for effectively avoiding oxidation. The <em>L. gmeliniiem> wood samples before and after extraction were characterized by scanning electron microscopy. The results showed that the UMAE method is a simple and efficient technique for sample preparation.

  7. Preferencia alimenticia del ácaro depredador <em>Balaustium> sp. en condiciones controladas

    Directory of Open Access Journals (Sweden)

    Muñoz Karen

    2009-04-01

    Full Text Available

    Se evaluó la preferencia de presas de <em>Balaustium> sp., enemigo natural de diferentes artrópodos plaga, y el cual es nativo de la Sabana de Bogotá. En unidades experimentales construidas con foliolos de plantas de rosa se colocaron independientemente individuos de <em>Balaustium> sp. y se registró el número de presas consumidas. De esta manera se determinó la preferencia de los tres estados móviles del ácaro depredador <em>Balaustium> sp. por diferentes edades de tres presas. Las especies y edades de las presas estudiadas fueron: huevos, ninfas y adultos de <em>Trialeurodes vaporariorumem>, huevos, ninfas y adultos de <em>Tetranychus urticaeem>, y larvas de primer y segundo instar y adultos de <em>Frankliniella occidentalisem>. Los estados menos desarrollados fueron preferidos, aunque se observó que los adultos del depredador tienen gran habilidad para consumir adultos de <em>T. vaporariorumem>. La presa preferida por las larvas de <em>Balaustium> sp. fue los huevos de <em>T. urticaeem> con una proporción de consumo de 0,54 de los huevos que se ofrecieron de esta presa; las deutoninfas del depredador eligieron huevos de <em>T. vaporariorumem> (0,537 o de <em>T. urticaeem> (0,497 y los adultos de <em>Balaustium> sp. prefrieron los huevos de <em>T. vaporariorumem> (0,588.

  8. Conjuntivite em animais de companhia

    OpenAIRE

    Gonçalves, Mariana Inês Pereira Coelho

    2015-01-01

    Dissertação de Mestrado Integrado em Medicina Veterinária, Ciências Veterinárias A conjuntivite é a doença ocular mais frequentemente diagnosticada em Medicina Veterinária, tanto em cães como em gatos. O facto de a conjuntiva ser uma membrana mucosa tão exposta a agentes externos faz com que esteja bastante suscetível a sofrer lesões, com consequente inflamação. Nesta dissertação abordam-se os diferentes tipos de conjuntivite, que são classificados de acordo com a sua etiologia. No Hospita...

  9. Conhecimento e interesse em economia

    Directory of Open Access Journals (Sweden)

    João Antonio de Paula

    2003-09-01

    Full Text Available O artigo argumenta em favor da necessidade de preservar o pluralismo em economia. Discute: i a natureza do conhecimento e de sua produção; ii as especificidades da produção do conhecimento em economia e os condicionamentos histórico-culturais do conhecimento; iii as implicações da hegemonia de certa concepção de método em economia.The article argues the need to preserve the pluralism in economics. The article examines: i the nature of the knowledge and of its production; ii the specificity of the knowledge production in economics and the historical and cultural conditionings of the knowledge; iii the implications of the hegemony of a certain methodological conception in economics.

  10. Padrões de interações mutualísticas entre espécies arbóreas e aves frugívoras em uma comunidade de Restinga no Parque Estadual de Itapuã, RS, Brasil Patterns of mutualistic interactions between tree species and frugivorous birds in a restinga community at Itapuã State Park, Rio Grande do Sul, Brazil

    Directory of Open Access Journals (Sweden)

    Adriano Scherer

    2007-03-01

    Full Text Available Padrões de interação entre aves frugívoras e espécies arbóreas, com suas variações sazonais, foram determinados em uma mata de Restinga. Foram feitas observações visuais e capturas da avifauna, ao longo de um ano, estimando-se a conectância do sistema mutualístico e o índice de importância das espécies. Também foi elaborada a rede de interações do sistema e feita a análise da variação das interações entre as estações do ano. Foram registradas 18 espécies animais e 11 vegetais interagindo, com uma conectância de 25,3%. Turdus amaurochalinus e T. rufiventris apresentaram maior número de visitas, interagiram com a maioria das espécies arbóreas e tiveram o maior índice de importância, sendo caracterizadas como as principais dispersoras em potencial. Ocotea pulchella e Myrsine spp. foram registradas com os maiores números de eventos de consumo de frutos pelas aves. No entanto, Ficus organesis interagiu com mais espécies dispersoras, além de ter a maior importância na dieta das aves. Observaram-se variações na quantidade de eventos de frugivoria ao longo do ano, com um aumento significativo na primavera. Além disso, verificou-se um aumento nas espécies frugívoras durante a primavera e verão, bem como no número de espécies arbóreas visitadas nessas estações.Interaction patterns between frugivorous birds and tree species, with seasonal variations, were determined in a restinga forest. Visual observations and bird captures were performed throughout a year, estimating the connectance of the mutualistic system and the importance index of species. The interaction network of the system was also worked out and seasonal variation in these interactions was analyzed. Eighteen animal species and 11 tree species were recorded as interacting, with a connectance of 25.3%. Turdus amaurochalinus and T. rufiventris had the highest number of visits, interacted with most tree species and had the highest importance index

  11. Activity-Guided Isolation of Antioxidant Compounds from <em>Rhizophora apiculataem>

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    Hongbin Xiao

    2012-09-01

    Full Text Available <em>Rhizophora apiculataem> (<em>R. apiculataem> contains an abundance of biologically active compounds due its special salt-tolerant living surroundings. In this study, the total phenolic content and antioxidant activities of various extract and fractions of stem of <em>R. apiculataem> were investigated. Results indicated that butanol fraction possesses the highest total phenolic content (181.84 mg/g GAE/g dry extract with strongest antioxidant abilities. Following <em>in vitroem> antioxidant activity-guided phytochemical separation procedures, lyoniresinol-3α-<em>O>-β-arabinopyranoside (1, lyoniresinol-3α-<em>O>-β-rhamnoside (2, and afzelechin-3-<em>O>-L-rhamno-pyranoside (3 were separated from the butanol fraction. These compounds showed more noticeable antioxidant activity than a BHT standard in the DPPH, ABTS and hydroxyl radical scavenging assays. HPLC analysis results showed that among different plant parts, the highest content of 13 was located in the bark (0.068%, 0.066% and 0.011%, respectively. The results imply that the <em>R. apiculataem> might be a potential source of natural antioxidants and 13 are antioxidant ingredients in <em>R. apiculataem>.

  12. Regional Suppression of <em>Bactrocera> Fruit Flies (Diptera: Tephritidae in the Pacific through Biological Control and Prospects for Future Introductions into Other Areas of the World

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    Roger I. Vargas

    2012-08-01

    Full Text Available <em>Bactrocera> fruit fly species are economically important throughout the Pacific. The USDA, ARS U.S. Pacific Basin Agricultural Research Center has been a world leader in promoting biological control of <em>Bactrocera> spp. that includes classical, augmentative, conservation and IPM approaches. In Hawaii, establishment of <em>Bactrocera> <em>cucurbitae> (Coquillett in 1895 resulted in the introduction of the most successful parasitoid, <em>Psyttalia> <em>fletcheri> (Silvestri; similarly, establishment of <em>Bactrocera> <em>dorsalis> (Hendel in 1945 resulted in the introduction of 32 natural enemies of which <em>Fopius> <em>arisanus> (Sonan, <em>Diachasmimorpha> <em>longicaudata> (Ashmead and <em>Fopius> <em>vandenboschi> (Fullaway were most successful. Hawaii has also been a source of parasitoids for fruit fly control throughout the Pacific region including Australia, Pacific Island Nations, Central and South America, not only for <em>Bactrocera> spp. but also for <em>Ceratitis> and <em>Anastrepha> spp. Most recently, in 2002, <em>F.> <em>arisanus> was introduced into French Polynesia where <em>B.> <em>dorsalis> had invaded in 1996. Establishment of <em>D.> <em>longicaudata> into the new world has been important to augmentative biological control releases against <em>Anastrepha> spp. With the rapid expansion of airline travel and global trade there has been an alarming spread of <em>Bactrocera> spp. into new areas of the world (<em>i.e.>, South America and Africa. Results of studies in Hawaii and French Polynesia, support parasitoid introductions into South America and Africa, where <em>B.> <em>carambolae> and <em>B.> <em>invadens>, respectively, have become established. In addition, <em>P.> <em>fletcheri> is a candidate for biological control of <em>B.> <em>cucurbitae> in Africa. We review past and more

  13. <em>Trichoderma harzianumem> como promotor del crecimiento vegetal del maracuyá (<em>Passiflora edulisem> var. <em>flavicarpa> Degener

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    Cubillos-Hinojosa Juan

    2009-04-01

    Full Text Available

    Se realizó un experimento en condiciones de laboratorio e invernadero, con el propósito de evaluar el efecto de la cepa nativa TCN-014 y la cepa comercial TCC-005 de <em>Trichoderma harzianumem> sobre la germinación y el crecimiento temprano del maracuyá. Se adecuaron inóculos de 104, 106 y 108 conidias/mL para cada cepa y se aplicaron a semillas de maracuyá; se evaluó el número de semillas germinadas durante 15 días; se calculó el porcentaje de germinación, el índice de velocidad de germinación y el tiempo medio de germinación. Posteriormente las semillas germinadas se llevaron a condiciones de invernadero y transcurridos dos meses se midió la altura de las plántulas, el grosor del tallo, el número de hojas, la longitud de la raíz y el peso seco total. Todos los tratamientos estimularon la germinación de las semillas y el desarrollo de las plántulas; sin embargo la cepa nativa en concentraciones 106 y 108 conidias/mL mostró resultados superiores frente a la cepa comercial. Los resultados sugieren una acción efectiva de <em>T. harzianumem> como promotor de crecimiento vegetal, mostrando que tiene potencial para la elaboración de un bioproducto útil para el manejo ecológico del cultivo de maracuyá.

  14. Tratamento da dor em queimados

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    Rodrigo José Alencar de Castro

    2013-02-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: Apesar dos avanços, ainda é observado manejo analgésico inadequado dos pacientes com queimaduras. O objetivo desta revisão foi coletar dados sobre tratamento da dor em queimados. CONTEÚDO: Foi feita revisão sobre os mecanismos de dor, avaliação do paciente com queimadura e o tratamento farmacológico e não farmacológico. CONCLUSÕES: O manejo da dor em pacientes vítimas de queimaduras ainda é um desafio por parte da equipe multiprofissional. A avaliação frequente e contínua da resposta apresentada pelo paciente é muito importante, tendo em vista os vários momentos por que passa o paciente internado em decorrência de uma queimadura, além de uma terapêutica combinada com medicações analgésicas e medidas não farmacológicas. Entender a complexidade de alterações fisiopatológicas, psicológicas e bioquímicas apresentadas por um paciente em tratamento de queimadura é o primeiro passo para alcançar o sucesso no seu manejo analgésico.

  15. Objetos mediadores em museus

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    Inês Ferreira

    2015-02-01

    Full Text Available Um museu participativo incentiva a que a experiência da visita seja criativa e pessoal. Facilita a participação biográfica do visitante - com a sua experiência, conhecimento e interesses. Muitas exposições, porém, não promovem esse envolvimento pessoal. Neste artigo apresentamos uma revisão da literatura que indicia que a mediação com objetos mediadores facilita o envolvimento pessoal, a construção de conhecimento e a criatividade. O problema teórico que colocamos é se os museus mais tradicionais se podem abrir à participação e, neste contexto, o nosso objetivo é perceber que papel podem ter os objetos mediadores nesse processo. Discutimos o recurso a objetos mediadores como forma de adicionar múltiplos níveis de relação e modos de ver, potencial que consideramos subaproveitado em muitos museus. Começamos por apresentar o museu como espaço potencialmente participativo, que convida a um envolvimento ativo e crítico – ativo, porque o visitante é desafiado a fazer coisas; crítico, porque é estimulado a pensar, optar, discutir e refletir. Discutimos depois diferentes formas de usar objetos mediadores para incentivar o visitante a um envolvimento com os artefactos, recorrendo à memória, experiência, conhecimento e sentimentos. A participação biográfica potencia o cruzamento entre o mundo interior do visitante e os artefactos e conteúdos do museu. Esse espaço de cruzamento - inbetween - é o espaço da construção de conhecimento. Apresentamos diversas formas de um museu, mesmo não sendo interativo, se tornar mais criativo e participativo, o que pode contribuir para uma mudança nas práticas dos museus, nomeadamente na montagem e remodelação de exposições permanentes.

  16. Acessibilidade web em redes sociais

    OpenAIRE

    Loureiro, Janaína Rolan

    2014-01-01

    A acessibilidade tem sido uma preocupação em diversas áreas nos últimos anos e, em relação à Web, trata-se de um direito garantido por lei às pessoas com deficiência. Muitos estudos visando avaliar e melhorar a Acessibilidade Web foram realizados desde que este direito foi instituído, culminando com o surgimento de tecnologias assistivas, ferramentas de avaliação automatizadas e diretrizes para padronizar o desenvolvimento de sites acessíveis. Porém, alguns domínios ainda c...

  17. Efeito da enxertia em mandioca

    OpenAIRE

    Bomfim, Nayra Nascimento

    2011-01-01

    Enxertos de duas espécies silvestres (M. glaziovii e M. fortalezensis) sobre M. esculenta, mandioca, foram estudados morfologicamente, anatomicamente e citogeneticamente e a fim de se avaliar possíveis efeitos devido à interação entre enxerto e porta-enxerto. Foram feitas análises anatômicas das raízes dos porta-enxertos UnB 201 e UnB 122 (variedades de M. esculenta), em comparação com as variedades não enxertadas. Analisou-se a meiose em enxerto da espécie M. glaziovii que apresentava morfol...

  18. NAVIER-STOKES EM GPU

    OpenAIRE

    ALEX LAIER BORDIGNON

    2006-01-01

    Nesse trabalho, mostramos como simular um fluido em duas dimensões em um domínio com fronteiras arbitrárias. Nosso trabalho é baseado no esquema stable fluids desenvolvido por Joe Stam. A implementação é feita na GPU (Graphics Processing Unit), permitindo velocidade de interação com o fluido. Fazemos uso da linguagem Cg (C for Graphics), desenvolvida pela companhia NVidia. Nossas principais contribuições são o tratamento das múltiplas fronteiras, o...

  19. Factores de risco em implantologia

    OpenAIRE

    Sousa, Inês Silveira e Luz Nunes de

    2015-01-01

    A Implantologia tem ganho popularidade na medicina dentária pelos resultados previsíveis em reabilitações de áreas edêntulas, permitindo minimizar as consequências funcionais, fonéticas e estéticas que advém da perda de dentes através de uma solução fixa que satizfaz os pacientes. Esta é uma revisão da literatura existente sobre factores de risco, fracassos e complicações inerentes ao tratamento com implantes dentários. Categorizam-se os factores de risco em implantologia co...

  20. Thermal Studies of Zn(II, Cd(II and Hg(II Complexes of Some <em>N-Alkyl-N>-Phenyl-Dithiocarbamates

    Directory of Open Access Journals (Sweden)

    Peter A. Ajibade

    2012-07-01

    Full Text Available The thermal decomposition of Zn(II, Cd(II and Hg(II complexes of <em>N-ethyl-N>-phenyl and <em>N-butyl-N>-phenyl dithiocarbamates have been studied using thermogravimetric analysis (TGA and differential scanning calorimetry (DSC. The products of the decomposition, at two different temperatures, were further characterized by scanning electron microscopy (SEM and energy-dispersive X-ray spectroscopy (EDX. The results show that while the zinc and cadmium complexes undergo decomposition to form metal sulphides, and further undergo oxidation forming metal oxides as final products, the mercury complexes gave unstable volatiles as the final product.

  1. Evaluation of Antioxidant Activities of Aqueous Extracts and Fractionation of Different Parts of <em>Elsholtzia em>ciliata>

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    Yuangang Zu

    2012-05-01

    Full Text Available The aim of this study was to investigate the antioxidant and free-radical scavenging activity of extract and fractions from various parts of <em>Elsholtzia ciliataem>. The inflorescences, leaves, stems and roots of <em>E. ciliataem> were extracted separately and two phenolic component enrichment methods: ethyl acetate-water liquid-liquid extraction and macroporous resin adsorption-desorption, were adopted in this study. The antioxidant activities of water extracts and fractions of <em>E. ciliataem> were examined using different assay model systems <em>in vitroem>. The fraction root E (purified by HPD300 macroporous resin exhibited the highest total phenolics content (497.2 ± 24.9 mg GAE/g, accompanied with the highest antioxidant activity against various antioxidant systems <em>in vitroem> compared to other fractions. On the basis of the results obtained, <em>E. ciliataem> extracts can be used potentially as a ready accessible and valuable bioactive source of natural antioxidants.

  2. A Novel Apoptosis Correlated Molecule: Expression and Characterization of Protein Latcripin-1 from <em>Lentinula em>edodes> C91–3

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    Min Huang

    2012-05-01

    Full Text Available An apoptosis correlated molecule—protein Latcripin-1 of <em>Lentinula> edodesem> C91-3—was expressed and characterized in <em>Pichia pastorisem> GS115. The total RNA was obtained from <em>Lentinula edodesem> C91–3. According to the transcriptome, the full-length gene of Latcripin-1 was isolated with 3'-Full Rapid Amplification of cDNA Ends (RACE and 5'-Full RACE methods. The full-length gene was inserted into the secretory expression vector pPIC9K. The protein Latcripin-1 was expressed in <em>Pichia pastorisem> GS115 and analyzed by Sodium Dodecylsulfonate Polyacrylate Gel Electrophoresis (SDS-PAGE and Western blot. The Western blot showed that the protein was expressed successfully. The biological function of protein Latcripin-1 on A549 cells was studied with flow cytometry and the 3-(4,5-Dimethylthiazol-2-yl-2,5-Diphenyl-tetrazolium Bromide (MTT method. The toxic effect of protein Latcripin-1 was detected with the MTT method by co-culturing the characterized protein with chick embryo fibroblasts. The MTT assay results showed that there was a great difference between protein Latcripin-1 groups and the control group (<em>p em>< 0.05. There was no toxic effect of the characterized protein on chick embryo fibroblasts. The flow cytometry showed that there was a significant difference between the protein groups of interest and the control group according to apoptosis function (<em>p em>< 0.05. At the same time, cell ultrastructure observed by transmission electron microscopy supported the results of flow cytometry. The work demonstrates that protein Latcripin-1 can induce apoptosis of human lung cancer cells A549 and brings new insights into and advantages to finding anti-tumor proteins.

  3. Action of Chitosan Against <em>Xanthomonas> Pathogenic Bacteria Isolated from <em>Euphorbia pulcherrimaem>

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    Yanli Wang

    2012-06-01

    Full Text Available The antibacterial activity and mechanism of two kinds of chitosan were investigated against twelve <em>Xanthomonas> strains recovered from <em>Euphorbia pulcherrimaem>. Results indicated that both chitosans markedly inhibited bacterial growth based on OD loss. Furthermore, the release of DNA and RNA from three selected strains was increased by both chitosans. However, the release of intracellular proteins was inhibited by both chitosans at different concentration and incubation times, except chitosan A at 0.1 mg/mL for 0.5 h incubation and 0.2 mg/mL for 2.0 h incubation increased the release of proteins, indicating the complexity of the interaction and cell membranes, which was affected by incubation time, bacterial species, chitosan type and concentration. Transmission electron microscopic observations revealed that chitosan caused changes in protoplast concentration and surface morphology. In some cells, the membranes and walls were badly distorted and disrupted, while other cells were enveloped by a thick and compact ribbon-like layer. The contrary influence on cell morphology may explain the differential effect in the release of material. In addition, scanning electron microscope and biofilm formation test revealed that both chitosans removed biofilm biomass. Overall, this study showed that membrane and biofilm play an important role in the antibacterial mechanism of chitosan.

  4. Allometric and Isometric variations in the Italian <em>Apodemus sylvaticusem> and <em>Apodemus flavicollisem> with respect to the conditions of allopatry and sympatry / Variazioni allometriche e isometriche in <em>Apodemus sylvaticusem> e <em>Apodemus flavicollisem> italiani, rispetto alle condizioni di allopatria e simpatria

    Directory of Open Access Journals (Sweden)

    Giovanni Amori

    1986-12-01

    Full Text Available Abstract In Italy there are two species of <em>Apodemus> (<em>Sylvaemus>: <em>Apodemus sylvaticusem> on the mainland and the main island, and <em>Apodemus flavicollisem> only on the mainland. The trend of some morphometric characters of the skull (incisive foramen length - FI; interorbital breadth = IO; length of palatal bridge = PP; upper alveolar length = $M^1M^3$ was analized and some theoretical models verified for <em>A. sylvaticusem>. If one considers the sympatric population of <em>A. sylvaticusem> and <em>A. flavicollisem> simultaneously the characters PP, IO and $M^1M^3$ appear significantly isometric being directly correlated ($P leq O.O1$, while FI character results allometric with respect to the previous ones, as expected. If one considers the sympatric populations of each of the species separately, the scenario is different. For <em>A. sylvaticusem> only PP and $M^1M^3$ are isometric ($P leq 0.05$. For <em>A. flavicollisem> only $M^1M^3$ and FI appear to be correlated, although not as significantly as for <em>A. sylvaticusem> ($P le 0.05$; one tail. The insular populations of <em>A. sylvaticusem> do not show significant correlations, except for FI and $M^1M^3$ ($P le 0.05$. On the contrary, considering all populations, sympatric and allopatric, of <em>A. sylvaticusem> at the same time are significant correlations ($P le 0.05$ in all combinations of characters, except for those involving the IO. We suggest that the isometric relations in sympatric assemblages are confined within a morphological range available to the genus <em>Apodemus>. In such a space, the two species are split in two different and innerly homogeneous distributions. We found no evidence to confirm the niche variation hypothesis. On the contrary, the variability expressed as SO or CV's appears higher in the sympatric populations than in the allopatric ones, for three of the four characters, confirming previous results

  5. Low Diversity Bacterial Community and the Trapping Activity of Metabolites from Cultivable Bacteria Species in the Female Reproductive System of the Oriental Fruit Fly, <em>Bactrocera dorsalisem> Hendel (Diptera: Tephritidae

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    Hongyu Zhang

    2012-05-01

    Full Text Available Our goal was to identify the bacteria inhabiting the reproductive system of the female oriental fruit fly, <em>Bactrocera dorsalisem> (Hendel, and evaluate the chemotaxis of <em>B>. <em>dorsalis> to the metabolites produced by the bacteria. Based on 16S rRNA-based polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE, 18 operational taxonomic units (OTUs were assigned to the five bacterial classes <em>Betaproteobacteria>, <em>Alphaproteobacteria>, <em>Gammaproteobacteria>, <em>Bacilli> and <em>Actinobacteria>. Nine OTUs were assigned to <em>Gammaproteobacteria>, which was the most highly represented class. <em>Enterobacteriaceae> constituted the dominant family, and within this family, three genera and five species were identified, including <em>Enterobacter sakazakiiem>, <em>Klebsiella> <em>oxytoca>, <em>Klebsiella> <em>pneumoniae,> Raoultellaem> <em>terrigena em>and <em>Enterobacter> <em>amnigenus>. In this set, the first two species were the dominant components, and the latter three species were the minor ones. Finally, we found that the metabolites produced by <em>R.> terrigenaem>, <em>K. oxytocaem> and <em>K.> pneumoniae em>were attractive to the <em>B.> dorsalisem> adults, and in field studies, <em>B.> dorsalisem> adults were most attracted to <em>K.> oxytocaem>. Collectively, our results suggest that the female reproductive system plays an important role in the transfer of enterobacteria from the gut to fruit. Our data may prompt the development of a female-targeted population control strategy for this fly.

  6. Influence de l'usage préventif des pesticides sur les acariens Tetranychus urticae et Phytoseiulus persimilis (Acari : Tetranychidae, Phytoseiidae présents en cultures de fraisiers du Nord du Maroc

    Directory of Open Access Journals (Sweden)

    Lagziri, M.

    2015-01-01

    Full Text Available Influence of previous pesticide use on Tetranychus urticae and Phytoseiulus persimilis (Acari: Tetranychidae, Phytoseiidae from strawberry crops in the north of Morocco. Description of the subject. Effects of recommended doses of five common pesticides in the strawberries of Loukkos area (Morocco were tested on the two-spotted spider mite Tetranychus urticae and its predatory mite Phytoseiulus persimilis. Laboratory study assessed the contact toxicity of one avermectin miticide (abamectin, two pyrethrinoid insecticide-acaricides (bifenthrin and lambda-cyalothrin, and two fungicides: firstly, mancozeb, which belongs to the dithiocarbamates family of chemicals and secondly, hexaconazole, of the triazole family. Objectives. The aim of the present study was to test in laboratory conditions the effect of five pesticides on the two-spotted spider mite, T. urticae and its predatory mite, P. persimilis. The five pesticides tested were those most frequently applied for at least two years on strawberries at the experimental site. Method. Bioassays were performed with populations of mites originating from different plots with various crop protection backgrounds. The first group of plots had been repeatedly treated with the five tested pesticides during a two-year period, the second group had been moderately treated, and the third had been treated once with the tested pesticides. Results. Our results showed that the tested pesticides provided effective control of T. urticae but that they were not compatible with use on the predatory mite P. persimilis, as these particular mites did not usually come into contact with these products. On the other hand, in plots where pesticides had been used for a long time, the susceptibility of P. persimilis populations to these products was significantly reduced. Conclusions. If the tested pesticides are to be considered for integrated pest control programs in plots where they have been used for a long time and where P

  7. Chemical composition and acaricidal activity of the essential oil of Baccharis dracunculifolia De Candole (1836) and its constituents nerolidol and limonene on larvae and engorged females of Rhipicephalus microplus (Acari: Ixodidae).

    Science.gov (United States)

    de Assis Lage, Tiago Coelho; Montanari, Ricardo Marques; Fernandes, Sergio Antonio; de Oliveira Monteiro, Caio Márcio; de Oliveira Souza Senra, Tatiane; Zeringota, Viviane; da Silva Matos, Renata; Daemon, Erik

    2015-01-01

    Baccharis dracunculifolia DC (common name "alecrim-do-campo" in Brazil) is a plant with widespread distribution in South America that is the botanical origin of green propolis. The aim of this study was to evaluate the chemical composition and acaricidal activity of the essential oil of B. dracunculifolia and its constituents nerolidol and limonene on unengorged larvae and engorged females of Rhipicephalus microplus (Acari: Ixodidae). The essential oil yield was 0.8% of dry mass and the major constituents were nerolidol (22.3%), germacrene D (7.2%), limonene (6.9%), β-pinene (6.7) and bicyclogermacrene (6.5%). The acaricidal activity of the essential oil and the pure compounds nerolidol and (R)-(+)-limonene were assessed in the laboratory through the modified larval packet test (LPT) and the female immersion test (FIT). In the LPT, the essential oil and nerolidol were both active, causing more than 90% mortality at concentrations from 15.0 and 10.0 mg mL(-1), respectively, whereas (R)-(+)-limonene was not active. In the FIT, the oil and nerolidol caused reduction in the quantity and quality of eggs produced, with control percentages of 96.3% and 90.3% at concentrations of 60.0 and 50.0 mg mL(-1), respectively. It can be concluded that the essential oil obtained from the aerial parts of B. dracunculifolia and its major component nerolidol have high activity on R. microplus larvae and engorged females. Copyright © 2014 Elsevier Inc. All rights reserved.

  8. Nouvelle technique d'élevage de l'acarien phyllophage Tetranychus urticae Koch (Acari : Tetranychidae et son application à l'étude de l'efficacité de quelques acaricides sur pomme de terre (Solarium tuberosum L.

    Directory of Open Access Journals (Sweden)

    Badegana, AM.

    2000-01-01

    Full Text Available A New Rearing Technique of Phytophagous Mite Tetranychus urticae Koch (Acari : Tetranychida and its Application in the Study of the Efficacy of some Acaricides on Potato [Solanum tuberosum L.. A 5 cm diameter leaf disc of potato or another host plant (or four on 2.5 cm diameter was used in a Petri dish of 9 cm diameter for the rearing technique. This leaf disc, pierced in its centre, slides along a rustproof pin and floats on a 1 mm thick lamina of demineralized fresh water. Water is a "strong barrier" which confines the tetranychid mites on the leaf disc, even if this one does not corne from a host plant (tetranychid mites deprived of food. This rearing technique was used as a bioassay to test the effectiveness of acaricides (pyrimiphos-methyl, bromopropylate, fenpropathrin, dienochlor on the developmental stages of Tetranychus urticae. The ovicidal activity against the eggs of one, three, seven days old (the eggs incubation duration being 8.1 ±0.15 days was also studied. The results obtained show that bromopropylate, fenpropathrin and dienochlor have an ovicidal activity against the eggs of the different ages, but dienochlor has the highest efficiency (90 % mortality. Pyrimiphos-methyl is only active against the seven-day old eggs and bromopropylate has a high efficiency only on the one-day old eggs. Concerning the other developmental stages such as chrysalis (protochrysalis, deu-tochrysalis, teleiochrysalis and mobile stages (larva, protonymph, deutonymph and adult female, pyrimiphos-methyl has de highest efficiency (90 % mortality ; dienochlor also, except mobile stages. Bromopropylate has no activity against the chrysalis and mobile stages and fenpropathrin has a remarkable repulsive effect.

  9. Nest site selection and breeding success in three Turdus thrush species coexisting in an urban environment

    Czech Academy of Sciences Publication Activity Database

    Mikula, P.; Hromada, M.; Albrecht, Tomáš; Tryjanowski, P.

    2014-01-01

    Roč. 49, č. 1 (2014), s. 83-92 ISSN 0001-6454 Institutional support: RVO:68081766 Keywords : breeding success * coexistence * nest-habitat partitioning * nest site selection * predation * synurbization * urban habitat * thrushes Subject RIV: EG - Zoology Impact factor: 0.745, year: 2014

  10. Survival probabilities of first and second clutches of blackbird (Turdus merula in an urban environment

    Directory of Open Access Journals (Sweden)

    Kurucz Kornelia

    2010-01-01

    Full Text Available The breeding success of blackbirds was investigated in April and June 2008 and 2009 in the Botanical Garden of the University of Pecs, with a total of 50 artificial nests at each of the four sessions (with 1 quail egg and 1 plasticine egg placed in every nest. In all four study periods of the two years, 2 nests (4% were destroyed by predators. Six nests (12%, of the nests were not discovered in either of the cases. The survival probability of artificial nests was greater in April than in June (both years, but the difference was significant only in 2008. Nests placed into a curtain of ivy (Hedera helix on a wall were located higher up than those in bushes, yet their predation rates were quite similar. The predation values of quail vs. plasticine eggs did not differ in 2008. In the year 2009, however, significantly more quail eggs were discovered (mostly removed, than plasticine eggs. Marks that were left on plasticine eggs originated mostly from small mammals and small-bodied birds, but the disappearance of a large number of quail and plasticine eggs was probably caused by larger birds, primarily jays.

  11. Molecular characterization of vanA-containing Enterococcus from migratory birds: song thrush (Turdus philomelos

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    Nuno Silva

    2012-09-01

    Full Text Available Vancomycin-resistant enterococci (VRE were detected in two faecal samples (1.3% of song thrush in Portugal. vanA isolates showed high level vancomycin/teicoplanin resistance, as well as resistance to ciprofloxacin, quinupristin-dalfopristin and cloranfenicol. Thrush can be a reservoir of VRE and transmit these resistant bacteria to other animals including humans.

  12. Vertical transmission of feather lice between adult blackbirds Turdus merula and their nestlings: a lousy perspective.

    Science.gov (United States)

    Brooke, M de L

    2010-12-01

    There is limited information about the natural history of the transmission of feather lice (Phthiraptera) from parent birds to their young. This article therefore examines the transmission of 4 species of feather lice from parent blackbirds to their nestlings in an English population, and addresses questions formulated from the perspective of the lice. The lice that disperse onto the several young in the nest were mostly found on the larger chicks, those with higher survival prospects. The lice dispersing to chicks were overwhelmingly nymphs, which cannot be sexed morphologically, and so the prediction that the adult lice dispersing would be disproportionately female, potential founders of a new population, was only supported for the most numerous species, Brueelia merulensis. There was no evidence that louse dispersal to chicks was density dependent and more likely when the parents were more heavily infested. Finally, I predicted that lice might aggregate on female blackbirds, which undertake more brooding, to increase their chance of transmission to nestlings. For 1 louse species, B. merulensis, prevalence, but not louse intensity, was higher on female than male blackbirds. For 2 other louse species, Philopterus turdi and Menacanthus eurysternus, no differences between male and female blackbirds were detected.

  13. Parasitic zoonoses: survey in foxes (<em>Vulpes vulpesem> in the northern Apennines / Zoonosi parassitarie: indagini in volpi (<em>Vulpes vulpesem> dell'Appennino settentrionale

    Directory of Open Access Journals (Sweden)

    Vittorio Guberti

    1991-07-01

    Full Text Available Abstract A parasitological survey on 153 foxes was carried out in the northern Apennines, during the period 1984-1987. The following parasites were identified: <em>Toxocara canisem> (46.4%, <em>Taenia> sp. (17%, <em>Uncinaria stenocephalaem> (11.8%, <em>Mesocestoides lineatusem> (11.1%, <em>Ancylostoma caninumem> (3.9%, <em>Taenia hydatigenaem> (3.3%, <em>Trichuris vulpisem> (3.3%, <em>Dipylidium caninumem> (2.6%, <em>Taenia crassicepsem> (2%. All foxes were negative for <em>Trichinella> sp. A statistical analysis was performed to evaluate differences in the parasitic fauna according to the sex and age classes of the hosts. The role that the fox could have as a reservoir of helminthic zoonoses is discussed. The results are compared with those of similar studies carried out in Italy. Riassunto Nel periodo 1984-1987 è stata condotta un'indagine parassitologica su 153 volpi abbattute nell'Appennino romagnolo. Sono stati reperiti i seguenti parassiti: <em>Toxocara canisem> (46,4%, <em>Taenia> sp. (17%, <em>Uncinaria stenocephalaem> (11,8%, <em>Mesocestoides lineatusem> (11,1%, <em>Ancylostoma caninumem> (3,9%, <em>Taenia hydatigenaem> (3,3%, <em>Trichuris vulpisem> (3,3%, <em>Dipylidium caninumem> (2,6%, <em>Taenia crassicepsem> (2%. Tutte le volpi esaminate sono risultate negative per <em>Trichinella> sp. È stata effettuata l'analisi statistica dei dati per evidenziare eventuali differenze della fauna parassitaria in relazione al sesso e all'età delle volpi. Sulla base dei dati ottenuti viene discussa l'importanza che la Volpe può assumere come serbatoio di zoonosi elmintiche. I risultati acquisiti sono inoltre comparati con quelli ottenuti in analoghe ricerche condotte in Italia.

  14. Fatores de risco cardiovascular em alcoolistas em tratamento

    Directory of Open Access Journals (Sweden)

    Mayla Cardoso Fernandes Toffolo

    2013-06-01

    Full Text Available OBJETIVO: Avaliar a presença de fatores de risco cardiovascular, com ênfase na hipertensão e na adiposidade corporal, em alcoolistas abstinentes ou não abstinentes em tratamento. MÉTODO: Trata-se de um estudo transversal com 65 pacientes alcoolistas em tratamento no CAP-Sad. O grau de dependência do álcool foi avaliado pelo SADD (Short Alcohol Dependence Data e o uso de outras drogas, pelo ASSIST (Alcohol Smoking and Substance Involvement Screening Test. Foram avaliados o perfil bioquímico e o antropométrico dos usuários. RESULTADOS: Participaram do estudo 42 homens e 23 mulheres. A maioria dos participantes (67,74% apresentou dependência alcoólica grave, com uso de álcool associado principalmente a cigarro (66,15%. A média da circunferência da cintura (CC foi significativamente maior entre os abstinentes, em comparação aos não abstinentes (AB: 88,15 ± 15,95 x NA: 81,04 ± 9,86; p = 0,03. Pacientes abstinentes há mais tempo tiveram maior sobrepeso/obesidade e adiposidade abdominal (CC do que os não abstinentes e abstinentes recentes, com razão de chances de 5,25. Os abstinentes apresentaram razão de chances de 3,38 para %GC acima da média, independente do tempo de abstinência. CONCLUSÃO: Pacientes alcoolistas abstinentes apresentam mais sobrepeso/ obesidade, adiposidade corporal (%GC e abdominal (CC do que os não abstinentes. É importante o acompanhamento multiprofissional no tratamento de alcoolistas com abordagem para fatores de risco cardiovasculares, principalmente evitando o ganho de peso.

  15. Enfermagem em cardiologia baseada em evidência

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    Eneida Rejane Rabelo da Silva

    2007-10-01

    Full Text Available Neste artigo apresentamos, dentro do cenário cardiovascular, estudos recentes do nosso grupo. Buscando melhores evidências de enfermagem investigamos por meio de ensaios clínicos randomizados (ECR estratégias de educação e acompanhamento destes pacientes (pctes. O primeiro ECR avaliou o impacto da educação individual e da orientação em grupo no conhecimento sobre doença e autocuidado em pctes com insuficiência cardíaca (IC. No grupo intervenção, houve uma melhora do conhecimento dos cuidados essenciais (controle de sal e da ingesta hídrica, peso diário, realização de atividade física P=0,008, demonstrando que o atendimento em grupo é semelhante ao individual. No ambiente hospitalar, segundo ECR, comparamos o efeito da educação de enfermagem e seguimento telefônico após alta versus educação sem a monitorização por telefone. Demonstramos que intervenção educativa durante a internação melhora o conhecimento da doença, autocuidado e qualidade de vida (P

  16. Conservazione e gestione della Lepre italica (<em>Lepus corsicanusem>

    Directory of Open Access Journals (Sweden)

    Francesco Riga

    2003-10-01

    Full Text Available Il recente riconoscimento dello <em>status> specifico della Lepre italica (<em>Lepus corsicanusem> e l?accertamento dell?areale distributivo rappresentano le azioni più importanti per la conservazione di un <em>taxon endemicoem> che si era creduto estinto. Nella penisola la specie presenta un areale discontinuo, il cui limite settentrionale è dato dal comune di Manciano (GR, sul versante tirrenico e da una linea che dalla provincia de L'Aquila arriva al Gargano. In Sicilia la distribuzione è relativamente continua anche in aree non protette. Dati genetici hanno permesso di confermare la presenza in Corsica. Al contrario, nell?Isola d'Elba, a seguito di estese ricerche, sono stati identificati solo esemplari di <em>L. europaeusem>. Nell?Italia peninsulare <em>L. corsicanusem> è spesso presente in simpatria con popolazioni di <em>L. europaeusem>, mentre in Sicilia la lepre europea non ha originato popolazioni stabili, nonostante l?immissione di molte migliaia di individui. La distribuzione ecologica di <em>L. corsicanusem> ed analisi ambientali specifiche, suggeriscono l?adattamento prevalente agli ambienti a clima mediterraneo, benché essa sia presente anche a quote elevate (> 1.500 m s.l.m.. Dati preliminari di abbondanza relativa hanno evidenziato una situazione diversificata tra la penisola e la Sicilia e tra aree a diverso regime di gestione; un confronto tra le aree protette ha evidenziato rispettivamente valori di 5,54 e 11,73 ind./km². La riduzione quali-quantitativa e la frammentazione dell?<em>habitat> delle lepri è un fenomeno potenzialmente pericoloso per la sopravvivenza delle popolazioni, determinando fenomeni di estinzione locale dovuti alle basse densità di popolazione, inducendo fenomeni di erosione della variabilità genetica e di riduzione della <em>fitness> degli individui. L?introduzione di <em>L. europaeusem> può costituire un importante fattore limitante sia per la possibile competizione

  17. Identification of <em>Colletotrichum> species causing anthracnose on Tahiti lime, tree tomato and mango

    Directory of Open Access Journals (Sweden)

    Martínez Erika P.

    2009-08-01

    Full Text Available

    In Colombia, citrus, tree tomato and mango crops are likely to suffer considerable losses from anthracnose caused by several <em>Colletotrichum> species, which were identified by the present study on infected organs of the three fruit crops, sampled in different regions of the country. Identification was based on their morphological and molecular characteristics, as well as on fungicide (benomyl and copper hydroxide sensitivity and pathogenicity tests. The latter assessed infectivity on both the original hosting crop and the other two crops (crossed infection, by putting the fungi in contact with organs taken from the three fruit crops. Molecular identification of the <em>Colletotrichum> species was carried out through amplification of rDNA ITS regions by means of <em>C. gloeosporioidesem> (CgInt and <em>C. acutatumem> (CaInt2 specific primer PCR combining the use of ITS4 universal primer. The results indicate that <em>C. acutatumem> is the infectious agent in Tahiti lime and tree tomato, and so is <em>C. gloeosporioidesem> in mango. Although <em>C. acutatumem> is the infectious agent in two diferent fruit species, the strains proved to be specific of their original hosts.

  18. <em>Ipomoea aquaticaem> Extract Shows Protective Action Against Thioacetamide-Induced Hepatotoxicity

    Directory of Open Access Journals (Sweden)

    A. Hamid A. Hadi

    2012-05-01

    Full Text Available In the Indian system of traditional medicine (Ayurveda it is recommended to consume <em>Ipomoea em>aquatica> to mitigate disorders like jaundice. In this study, the protective effects of ethanol extract of <em>I. aquaticaem> against liver damage were evaluated in thioacetamide (TAA-induced chronic hepatotoxicity in rats. There was no sign of toxicity in the acute toxicity study, in which Sprague-Dawley (SD rats were orally fed with <em>I. aquaticaem> (250 and 500 mg/kg for two months along with administration of TAA (i.p injection 200 mg/kg three times a week for two months. The results showed that the treatment of <em>I. aquaticaem> significantly lowered the TAA-induced serum levels of hepatic enzyme markers (ALP, ALT, AST, protein, albumin, bilirubin and prothrombin time. The hepatic content of activities and expressions SOD and CAT that were reduced by TAA were brought back to control levels by the plant extract supplement. Meanwhile, the rise in MDA level in the TAA receiving groups also were significantly reduced by <em>I. aquaticaem> treatment. Histopathology of hepatic tissues by H&E and Masson trichrome stains displayed that <em>I. aquaticaem> has reduced the incidence of liver lesions, including hepatic cells cloudy swelling, infiltration, hepatic necrosis, and fibrous connective tissue proliferation induced by TAA in rats. Therefore, the results of this study show that the protective effect of <em>I. aquaticaem> in TAA-induced liver damage might be contributed to its modulation on detoxification enzymes and its antioxidant and free radical scavenger effects. Moreover, it confirms a scientific basis for the traditional use of <em>I. aquaticaem> for the treatment of liver disorders.

  19. Culturas orais em sociedades letradas

    Directory of Open Access Journals (Sweden)

    Geraldi João Wanderley

    2000-01-01

    Full Text Available Na relação entre linguagem e cultura, um aspecto essencial diz respeito às diferentes funções da escrita e às formas de sua apropriação social em sociedades letradas. Tomando como inspiração a forma de um uso específico da escrita pelo povo indígena Jarawara e narrativas de ribeirinhos do rio Madeira do mito amazônico Cobra Norato, são discutidas as diferentes relações entre oralidade e escrita que, atravessadas pelas relações de poder, transformam o alfabeto, de artefato histórico construído para o registro da oralidade, em espaço social de construção de distinções, clivagens e exclusões.

  20. Paratuberculose em ruminantes no Brasil

    OpenAIRE

    Yamasaki,Elise M.; Brito,Marilene F.; Mota,Rinaldo A.; McIntosh,Douglas; Tokarnia,Carlos H.

    2013-01-01

    A paratuberculose ou doença de Johne é uma enterite granulomatosa causada por Mycobacterium avium subsp. paratuberculosis (Map) e comumente afeta ruminantes domésticos, no entanto, pode infectar várias espécies de mamíferos. Está presente nos cinco continentes e é considerada endêmica em algumas regiões pela Organização Internacional de Epizootias (OIE). Pertence à lista de enfermidades notificáveis, que compreende as doenças transmissíveis de importância sócio-econômica e/ou em saúde-pública...

  1. COMPETÊNCIA EM MEDICINA

    Directory of Open Access Journals (Sweden)

    Hélio Teixeira MD.

    2005-01-01

    Full Text Available Competência no exercício da medicina depende de um processo evolutivo ao longo da vida do profissional, processo este fundamentado em eficiência, experiência e em princípios éticos. A eficiência depende da cultura médica, de habilidades técnicas e relacionamento interpessoal com o paciente. A experiência ao longo da vida vai refinando o médico, favorecendo o evolver do conhecimento e da sabedoria vivencial. Finalmente, a ética médica se fundamenta na justiça, compaixão e amor ao próximo. Didaticamente, distinguimos 3 fases da evolução profissional do médico: a infância profissional ou visão linear: o médico se restringe em geral ao atendimento da doença, negligenciando o doente. É quase exclusivamente técnico e tem percepção acanhada da medicina-arte. b Maturidade profissional ou visão humanística: resultado de evolução da personalidade, da cultura e da experiência do médico, agora voltado para o doente com sua doença. c Excelência profissional ou visão holística: estágio máximo que se pode alcançar, quando o médico vislumbra a si e ao seu cliente em todas suas dimensões integradas e atua como mestre, procurando despertar no paciente condições próprias de cura, oriundas de sua essência. Conclui-se que exercer medicina com competência significa desempenhar adequadamente a ciência e a arte médica.

  2. Phytochemical Composition, Antioxidant and Xanthine Oxidase Inhibitory Activities of <em>Amaranthus cruentusem> L. and <em>Amaranthus hybridusem> L. Extracts

    Directory of Open Access Journals (Sweden)

    Jeanne F. Millogo

    2012-06-01

    Full Text Available This paper describes a preliminary assessment of the nutraceutical value of <em>Amaranthus cruentus (A. cruentusem> and <em>Amaranthus hybridus (A. hybridusem>, two food plant species found in Burkina Faso. Hydroacetonic (HAE, methanolic (ME, and aqueous extracts (AE from the aerial parts were screened for <em>in vitroem> antioxidant and xanthine oxidase inhibitory activities. Phytochemical analyses revealed the presence of polyphenols, tannins, flavonoids, steroids, terpenoids, saponins and betalains. Hydroacetonic extracts have shown the most diversity for secondary metabolites. The TLC analyses of flavonoids from HAE extracts showed the presence of rutin and other unidentified compounds. The phenolic compound contents of the HAE, ME and AE extracts were determined using the Folin–Ciocalteu method and ranged from 7.55 to 10.18 mg Gallic acid equivalent GAE/100 mg. Tannins, flavonoids, and flavonols ranged from 2.83 to 10.17 mg tannic acid equivalent (TAE/100 mg, 0.37 to 7.06 mg quercetin equivalent (QE /100 mg, and 0.09 to 1.31 mg QE/100 mg, respectively. The betacyanin contents were 40.42 and 6.35 mg Amaranthin Equivalent/100 g aerial parts (dry weight in <em>A. cruentusem> and <em>A. hybridusem>, respectively. Free-radical scavenging activity expressed as IC50 (DPPH method and iron reducing power (FRAP method ranged from 56 to 423 µg/mL and from 2.26 to 2.56 mmol AAE/g, respectively. Xanthine oxidase inhibitory activities of extracts of <em>A. cruentus em>and <em>A. hybridusem> were 3.18% and 38.22%, respectively.<em> em>The> A. hybridusem> extract showed the best antioxidant and xanthine oxidase inhibition activities. The results indicated that the phytochemical contents of the two species justify their traditional uses as nutraceutical food plants.

  3. Existe sujeito em Michel Maffesoli?

    Directory of Open Access Journals (Sweden)

    Marli Appel da Silva

    2010-06-01

    Full Text Available Este ensaio discute a concepção de sujeito na abordagem teórica de Michel Maffesoli. As ideias desse autor estão em voga em alguns meios acadêmicos no Brasil e são difundidas por algumas mídias de grande circulação nacional. Entretanto, ao longo de suas obras, os pressupostos que definem quem é o sujeito maffesoliano se encontram pouco clarificados. Portanto, para alcançar o objetivo a que se propõe, este ensaio desenvolve uma análise da epistemologia e da ontologia maffesoliana com a finalidade de compreender as origens dos pressupostos desse autor, ou seja, as teorias e os autores em que Maffesoli se baseou para desenvolver uma visão de sujeito. Com essa compreensão, pretende-se responder à questão: existe sujeito na abordagem teórica de Maffesoli.

  4. Complaints against an EMS system.

    Science.gov (United States)

    Colwell, Christopher B; Pons, Peter T; Pi, Randy

    2003-11-01

    Complaints against Emergency Medical Services (EMS) agencies represent a concerning and potentially time-consuming problem for all involved in the delivery of prehospital emergency medical care. The objective of this study was to identify the source of complaints against an EMS system to help focus quality and performance improvement and customer service efforts. We conducted a retrospective review of complaints filed against a busy urban EMS agency over a 6-year period. All complaints were included, totaled by season and by year, and categorized by originator and nature of the complaint. A total of 286 complaints were registered during the 6-year period, with an average of 48 per year and 9.3 per 10,000 responses. The most common originators of complaints were patients (53%) followed by medical personnel (19%) and family members or friends (12%). Rude behavior accounted for 23% of the complaints registered, followed by technical skills (20%), transport problems (18%), and loss of belongings (13%). The identification of areas of dissatisfaction will allow focused quality and performance improvement programs directed at customer service and risk management.

  5. Adding large EM stack support

    KAUST Repository

    Holst, Glendon

    2016-12-01

    Serial section electron microscopy (SSEM) image stacks generated using high throughput microscopy techniques are an integral tool for investigating brain connectivity and cell morphology. FIB or 3View scanning electron microscopes easily generate gigabytes of data. In order to produce analyzable 3D dataset from the imaged volumes, efficient and reliable image segmentation is crucial. Classical manual approaches to segmentation are time consuming and labour intensive. Semiautomatic seeded watershed segmentation algorithms, such as those implemented by ilastik image processing software, are a very powerful alternative, substantially speeding up segmentation times. We have used ilastik effectively for small EM stacks – on a laptop, no less; however, ilastik was unable to carve the large EM stacks we needed to segment because its memory requirements grew too large – even for the biggest workstations we had available. For this reason, we refactored the carving module of ilastik to scale it up to large EM stacks on large workstations, and tested its efficiency. We modified the carving module, building on existing blockwise processing functionality to process data in manageable chunks that can fit within RAM (main memory). We review this refactoring work, highlighting the software architecture, design choices, modifications, and issues encountered.

  6. Paratuberculose em ruminantes no Brasil

    Directory of Open Access Journals (Sweden)

    Elise M. Yamasaki

    2013-02-01

    Full Text Available A paratuberculose ou doença de Johne é uma enterite granulomatosa causada por Mycobacterium avium subsp. paratuberculosis (Map e comumente afeta ruminantes domésticos, no entanto, pode infectar várias espécies de mamíferos. Está presente nos cinco continentes e é considerada endêmica em algumas regiões pela Organização Internacional de Epizootias (OIE. Pertence à lista de enfermidades notificáveis, que compreende as doenças transmissíveis de importância sócio-econômica e/ou em saúde-pública, cujo controle é necessário para o comércio internacional de animais e alimentos de origem animal. A importância da doença de Johne não se restringe somente aos prejuízos econômicos causados à indústria animal, mas também na possível participação do Map na íleocolite granulomatosa que afeta seres humanos, conhecida como doença de Crohn. No Brasil, a paratuberculose já foi descrita em diversas espécies de ruminantes e em vários estados. Embora os relatos naturais da enfermidade sejam pontuais, acredita-se na possibilidade da transmissão interespecífica e na disseminação do agente através da compra e venda de animais infectados. O objetivo deste artigo foi reunir as informações disponíveis referentes aos aspectos epidemiológicos, clínico-patológicos e laboratoriais da paratuberculose em bovinos, bubalinos, caprinos e ovinos no Brasil, e salientar a necessidade de implementação de medidas de controle sanitário da enfermidade no país, o que possibilitaria a melhoria da qualidade e valorização dos produtos de origem animal no mercado internacional.

  7. Ultrasound-Assisted Extraction of Carnosic Acid and Rosmarinic Acid Using Ionic Liquid Solution from <em>Rosmarinus officinalisem>>

    Directory of Open Access Journals (Sweden)

    Chunjian Zhao

    2012-09-01

    Full Text Available Ionic liquid based, ultrasound-assisted extraction was successfully applied to the extraction of phenolcarboxylic acids, carnosic acid and rosmarinic acid, from <em>Rosmarinus officinalisem>. Eight ionic liquids, with different cations and anions, were investigated in this work and [C8mim]Br was selected as the optimal solvent. Ultrasound extraction parameters, including soaking time, solid–liquid ratio, ultrasound power and time, and the number of extraction cycles, were discussed by single factor experiments and the main influence factors were optimized by response surface methodology. The proposed approach was demonstrated as having higher efficiency, shorter extraction time and as a new alternative for the extraction of carnosic acid and rosmarinic acid from <em>R. officinalisem>> em>compared with traditional reference extraction methods. Ionic liquids are considered to be green solvents, in the ultrasound-assisted extraction of key chemicals from medicinal plants, and show great potential.

  8. Trophic systems and chorology: data from shrews, moles and voles of Italy preyed by the barn owl / Sistemi trofici e corologia: dati su <em>Soricidae>, <em>Talpidae> ed <em>Arvicolidae> d'Italia predati da <em>Tyto albaem> (Scopoli 1769

    Directory of Open Access Journals (Sweden)

    Longino Contoli

    1986-12-01

    Full Text Available Abstract In small Mammals biogeography, available data are up to now by far too scanty for elucidate the distribution of a lot of taxa, especially with regard to the absence from a given area. In this respect, standardized quantitative sampling techniques, like Owl pellets analysis can enable not only to enhance faunistic knowledges, but also to estimate the actual absence probability of a given taxon "m", lacking from the diet of an individual raptor. For the last purpose, the relevant frequencies of "m" in the other ecologically similar sites of the same raptor species diets are averaged ($f_m$ : the relevant standard error (multiplicated by a coefficient, according to the desired degree of accuracy, in relation of the integral of probabilities subtracted ($overline{F}_m - a E$: then, the probability that a single specimen is not pertaining to "m" is obtained ($P_0 = 1 - F_m + a E$; lastly, the desiderate accuracy probability ($P_d$ is chosen. Now, "$N_d$" (the number of individuals of all prey species in a single site needed for obtain, with the desired probability, a specimen at least of "m" is obtained through $$N = frac{ln P_d}{ln P_0}$$ Obviously, every site-diet with more than "N" preyed individuals and without any "i" specimen is considered to be lacking of such taxon. A "usefulness index" for the above purposes is outlined and checked about three raptors. Some exanples about usefulness of the Owl pellet analysis method in biogeography are given, concerning <em>Tyto albaem> diets in peninsular Italy about: - <em>Sorex minutusem>, lacking in some quite insulated areas; - <em>Sorex araneusem> (sensu stricto, after GRAF et al., 1979, present also in lowland areas in Emilia-Romagna; - <em>Crocidura suaveolensem> and - <em>Suncus etruscusem>, present also in the southermost part of Calabria (Reggio province; - <em>Talpa caecaem>, present also in the Antiapennines of Latium (Cimini mounts; - <em>Talpa romanaem

  9. Tumores em bovinos encontrados em abatedouros frigoríficos

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    Bianca Tessele

    2016-03-01

    Full Text Available Resumo: Numa pesquisa em abatedouros a procura de lesões em bovinos, realizada de janeiro de 2011 a julho de 2014, 544 foram encontradas, das quais 65 eram neoplasmas. Quarenta e dois porcento desses tumores eram de origem mesenquimal; 37% eram epiteliais; 14,5% eram derivados da crista neural; 5% eram tumores do cordão sexual; e 1,5 eram tumores originários do sistema nervoso periférico. O tumor mais frequentemente encontrado foi o linfoma (28% de todos os tumores, a maioria dos casos como parte do complexo leucose bovina enzoótica. O carcinoma de células escamosas foi o segundo tumor mais frequente (15% de todos os tumores. É chamada a atenção para a frequência desses tumores e para a sua importância no diagnóstico diferencial no abatedouro frigorífico entre eles e outras lesões importantes, incluindo as lesões granulomatosas da tuberculose. Houve uma ocorrência significativa do feocromocitoma adrenal (13% de todos os tumores. Papilomatose representou apenas 3% de todos os tumores. Como papilomas são comuns em bovinos, seu baixo número nesse estudo pode ser explicado pelo fato de que eles não são usualmente diagnosticados no exame post mortem (quando o couro já foi retirado da carcaça, mas sim no exame ante mortem, como ocorreu na maioria dos casos deste estudo. Tumores encontrados com menor frequência (cada um perfazendo entre 1.5 e 3% de todos os tumores incluíram adenocarcinoma apócrino misto da cauda, adenocarcinoma mamário, adenocarcinoma uterino, carcinoma de células renais, fibroma interdigital, hemangiossarcoma, leiomioma uterino, lipoma, lipossarcoma, mesotelioma, neurofibroma, tumor de células da granulosa, tumor estromal gastrointestinal, tumores hepáticos, tumores melanocíticos, e tumores pulmonares primários. Pretende-se que os resultados dessa pesquisa possam ajudar na identificação das lesões na inspeção oficial em matadouros frigoríficos.

  10. Infection in hedgerows, windbreaks and weeds by leprosies virus and its transmission to orange trees by Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae)

    OpenAIRE

    Maia, Ozana Maria de Andrade [UNESP; Oliveira, Carlos Amadeu Leite de [UNESP

    2006-01-01

    Objetivou-se avaliar a potencialidade de algumas plantas freqüentes em pomares cítricos de hospedar o vírus da leprose, transmitido por Brevipalpus phoenicis (Geijskes). Foram utilizadas as seguintes plantas: Hibiscus sp. L., Malvaviscus mollis DC., Grevillea robusta A. Cunn., Mimosa caesalpiniaefolia Benth., Bixa orellana L., Commelina benghalensis L., Bidens pilosa L., Sida cordifolia L. e Ageratum conyzoides L.. Duas criações-estoque do ácaro foram realizadas, sendo uma sobre frutos com si...

  11. Variabilità morfologica ed ecologica in <em>Neomys fodiensem> e <em>Neomys anomalusem> nell'Appennino settentrionale

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    Dino Scaravelli

    2003-10-01

    Full Text Available I due <em>Neomys> italiani sono ancora da chiarire dal punto di vista della loro caratterizzazione morfologica e ecologica. Il lavoro prende in considerazione un campione di entrambe le specie proveniente da habitat forestali dell?Appennino settentrionale per i quali sono stati identificati i principali parametri ambientali. Vengono quindi descritte la variabilità dei tratti morfologici delle due specie in aree localizzate nel Parco Nazionale Foreste Casentinesi, Monte Falterona e Campigna nell?Appennino tosco-romagnolo. Risultano di sicuro effetto discriminatorio la maschera facciale, il rapporto piede posteriore/coda e i caratteri cranici. Sulla base dei criteri identificativi si sono realizzate rilevazioni di misure corporee per le due specie e una comparazione degli habitat utilizzati. <em>N. fodiensem> appare unica specie nelle faggete-abetine e dominante nei castagneti, mentre nell?Ontaneta e nelle zone aperte e termofile si registra la sola presenza di <em>N. anomalusem>. Mancano entrambi nei prati cespugliati, nella pecceta e nella cerreta. I gradienti presenti sono quindi illustrati. Non appare una differenza altitudinale nel campione esaminato, posto in stazioni tra i 400 e i 1300 m, ma per entrambe vi sono maggiori riscontri nella fascia tra 700 e 850 m. Nell?analisi multivariata rispetto alle altre specie e alle variabili ambientali si riscontra sempre una discreta correlazione con la presenza di acqua di una certa ampiezza, che comunque è significativa solo per <em>N. fodiensem>, mentre risulta di interesse la positiva correlazione di <em>N. anomalusem> con <em>Apodemus sylvaticusem>.

  12. Morphological identification of the Soprano Pipistrelle (<em>Pipistrellus pygmaeusem> Leach, 1825 in Croatia.

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    Igor Pavlinić

    2008-07-01

    Full Text Available Abstract After the discovery of two different phonic types within the common pipistrelle (<em>Pipistrellus pipistrellusem>, mtDNA analysis confirmed the existence of two separate species named as common pipistrelle (<em>P. pipistrellusem> and soprano pipistrelle (<em>P. pygmaeusem>. The discrimination of these two cryptic species using external characters and measures has proved to be somewhat problematic. We examined two colonies of soprano pipistrelle from Donji Miholjac, Croatia. As a result, only two characters proved to be of help for field identification: wing venation (89% of cases and penis morphology and colour for males. The difference in length between the 2nd and 3rd phalanxes of the 3rd finger should be discarded as diagnostic trait between <em>P. pipistrellusem> and <em>P. pygmaeusem> in Croatia. Riassunto Identificazione su basi morfologiche del pipistrello pigmeo (<em>Pipistrellus pygmeausem>, Leach, 1825 in Croazia. A seguito della descrizione di due differenti "tipi fonici" nel pipistrello nano (<em>Pipistrellus pipistrellusem> e della successiva conferma su basi genetiche dell'esistenza di due specie distinte, designate come pipistrello nano (<em>P. pipistrellusem> e pipistrello pigmeo (<em>P. pygmaeusem>, la distinzione delle due specie in base a caratteristiche morfologiche esterne si è dimostrata un problema di difficile soluzione. Sulla base delle caratteristiche distintive e delle differenze biometriche proposte da altri Autori, sono state esaminate due colonie di pipistrello pigmeo a Donji Miholjac, in Croazia. I risultati ottenuti evidenziano che, tra tutti i potenziali caratteri sinora proposti, solo due risultano utili per un'identificazione diretta sul campo: la venatura delle ali, risultata utile alla discriminazione nell'89% degli esemplari analizzati, e la colorazione e morfologia del pene nei maschi. La

  13. Historicidade da filosofia em Hegel e Heidegger

    OpenAIRE

    Christian Iber

    2017-01-01

    Gostaria de discutir, em forma de teses, a temática da historicidade da filosofia em contraste e na sua divergência em Hegel e Heidegger. Diferente do historicismo, que não soluciona o problema da historicidade da filosofia, porque ele dissolve tendencialmente a filosofia na história da filosofia e não coloca em especial a questão da verdade, Hegel e Heidegger desenvolvem uma teoria genuinamente filosófica da história da filosofia do interesse filosófico pela verdade. Esse interesse genuiname...

  14. Encapsulation-Induced Stress Helps <em>Saccharomyces cerevisiae em>Resist Convertible Lignocellulose Derived Inhibitors

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    Johan O. Westman

    2012-09-01

    Full Text Available The ability of macroencapsulated <em>Saccharomyces cerevisiae em>CBS8066<em> em>to withstand readily and not readily <em>in situem> convertible lignocellulose-derived inhibitors was investigated in anaerobic batch cultivations. It was shown that encapsulation increased the tolerance against readily convertible furan aldehyde inhibitors and to dilute acid spruce hydrolysate, but not to organic acid inhibitors that cannot be metabolized anaerobically. Gene expression analysis showed that the protective effect arising from the encapsulation is evident also on the transcriptome level, as the expression of the stress-related genes <em>YAP1em>, <em>ATR1em> and <em>FLR1em> was induced upon encapsulation. The transcript levels were increased due to encapsulation already in the medium without added inhibitors, indicating that the cells sensed low stress level arising from the encapsulation itself. We present a model, where the stress response is induced by nutrient limitation, that this helps the cells to cope with the increased stress added by a toxic medium, and that superficial cells in the capsules degrade convertible inhibitors, alleviating the inhibition for the cells deeper in the capsule.

  15. A Favela posta em Cena

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    Fabiana Valdoski Ribeiro

    2010-08-01

    As publicações do Observatório das Favelas nos instigam na construção de um espaço transgressor Possível como necessidade de uma ação urgente, contudo a perspectiva do Impossível como projeto nos promove a revelar os limites, as normas e as ideologias que perpassam as ações internas ao Estado, já que este se constitui agente fundamental da engrenagem da produção de desigualdades e em sua força legitimadora realiza a ideologia mais eficiente.

  16. Maquinas virtuais em ambientes seguros

    OpenAIRE

    Arthur Bispo de Castro

    2006-01-01

    Resumo: Desde o início da computação a idéia de máquinas virtuais vem sendo aplicada para estender o multiprocessamento, multi-programação e multi-acesso, tornando os sistemas multi-ambiente. O contínuo aumento no poder de processamento dos computadores fez com que máquinas muito rápidas estivessem ao alcance de qualquer usuário, surgindo PCs com processamento, espaço em disco e memória suficiente para comportar mais de um sistema compartilhando o mesmo hardware. Basicamente, o objetivo das m...

  17. A metrologia em diferentes equipamentos

    OpenAIRE

    Gomes, Andreia Oliveira

    2017-01-01

    A seleção de um equipamento metrológico pode tornar-se uma difícil tarefa, dado que hoje em dia existe uma grande variedade. Quando se pretende adquirir ou até mesmo apenas saber qual o melhor equipamento para o controlo dimensional de um ou mais objetos, a opção pode não ser clara devido às inúmeras características associadas. Este trabalho tem como objetivo o desenvolvimento de uma metodologia que permita a qualquer pessoa com conhecimentos mínimos, saber o que há-de escolher, com bas...

  18. A melancolia em Al Berto

    OpenAIRE

    Camila Emanuele Martins de Souza

    2015-01-01

    Este trabalho objetiva estudar, sob a perspectiva da melancolia, os livros Salsugem (1984) e Horto de Incêndio (1997), de Al Berto. O autor português produz escritos em que a temática da melancolia atravessa a palavra, o que justifica o debruçar-se sobre as construções textuais da poética albertiana, a fim de traçar-lhe novas possibilidades de leitura por esse ângulo. Para isso, com o intuito de compreender o discurso melancólico segue-se o embasamento teórico: de Klibansky, Panosfsky e Saxl ...

  19. Altitudinal distribution of the common longeared bat <em>Plecotus auritusem> (Linnaeus, 1758 and grey long-eared bat <em>Plecotus austriacusem> (J. B. Fischer, 1829 (Chiroptera, Vespertilionidae in the Tatra mountains (southern Poland

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    Krzysztof Piksa

    2006-03-01

    Full Text Available Riassunto Distribuzione altitudinale di Orecchione bruno (<em>Plecotus auritusem> e Orecchione meridionale (<em>Plecotus austriacusem> nei Monti Tatra (Polonia meridionale. Vengono riportati nuovi dati relativi alla distribuzione altitudinale nei Monti Tatra (Polonia meridionale di <em>Plecotus auritusem> e <em>P. austriacusem>. Tali segnalazioni incrementano le conoscenze relative alla presenza di questi chirotteri a quote elevate, in particolare per la Polonia. In inverno <em>P. auritusem> è stato rinvenuto a 1921 m s.l.m. mentre in estate è stato rinvenuto a 2250 m s.l.m.; in aggiunta, sono stati ritrovati resti ossei a 1929 m s.l.m. <em>P. austriacusem> è stato segnalato in ibernazione a 1294 m s.l.m.

  20. Estratégia e estrutura: em busca do alinhamento organizacional em um clube social esportivo

    OpenAIRE

    Cruz Junior,Augusto de Toledo; Carvalho,Marly Monteiro de; Laurindo,Fernando José Barbin

    2005-01-01

    A literatura descreve tipologias de formas organizações, que podem ser divididas em organização baseada em trabalho e organização baseada em conhecimento. A forma de representação mais utilizada é o organograma. Contudo, esta forma de representação não consegue ilustrar adequadamente a dinâmica de funcionamento da organização, sobretudo em organizações em que o conhecimento e a experiência são os ativos-chave. Com o objetivo de investigar o processo de alinhamento entre estratégia e estrutura...

  1. Dualismos em duelo Dueling dualism

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    Anne Fausto-Sterling

    2002-01-01

    Full Text Available Os modos europeus e norte-americanos de entender como funciona o mundo dependem em grande parte do uso de dualismos - pares de conceitos, objetos ou sistemas de crenças opostos. Este ensaio enquadra especialmente três deles: sexo/gênero, natureza/criação e real/construído. Embora este texto verse sobre gênero, discuto regularmente o modo como as idéias de raça e gênero surgem a partir de supostos subjacentes sobre a natureza física do corpo. Entender como operam raça e gênero - em conjunto e independentemente - nos ajuda a compreender melhor como o social se torna corporificado.Euro-American ways of understanding how the world works depend heavily on the use of dualisms - pairs of opposing concepts, objects, or belief sytems. This text focuses especially on three of these: sex/gender, nature/nurture, and real/constructed. And although this text focuses on gender, I regularly discuss the ways in which the ideas of both race and gender emerge from underlying assumptions about the body's physical nature. Understanding how race and gender work - together and independently - help us learn more about how the social becomes embodied.

  2. Laddering em pesquisa de marketing

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    Tânia Modesto Veludo-de-Oliveira

    Full Text Available O artigo discute a técnica de pesquisa laddering em marketing, considerando a proposta de renovação de conhecimentos sobre metodologia na área. Para isso investiga diversos estudos, artigos e pesquisas que tratam do assunto em nível nacional e internacional. O conceito de cadeias meios-fins é abordado pela estrutura teórica que fundamenta a técnica, ligando atributos, conseqüências percebidas do consumo e valores pessoais relativos a um produto. O artigo segue com a explicação dos procedimentos de campo, como a entrevista e a análise dos dados. A laddering é um instrumento de pesquisa qualitativa bastante útil e poderoso, mas ainda pouco utilizado tanto por acadêmicos como por profissionais de mercado, no Brasil, provavelmente por desconhecimento e pouca divulgação. Cabe, portanto, uma maior disseminação de seu uso.

  3. Dois funcionalistas franceses em confronto

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    Rafael Eugenio Hoyos-Andrade

    2001-02-01

    Full Text Available

    Comparamos, neste artigo, de modo aproximativo e provisório, dois modelos de análise sintática e dois métodos de representação gráfica dessas análises: trata-se dos modelos e métodos de André Martinet e Lucien Tesnière. Depois de algumas considerações introdutórias relativas ao funcionalismo dos autores em causa, arrolamos um conjunto de características que aproximam ou opõem os seus respectivos modelos. Apresentamos, em seguida, no intuito de beneficiar os estudantes universitários de sintaxe, as representações gráficas de um mesmo enunciado segundo o método estemático de Tesnière e segundo o método de visualização das relações sintáticas de Martinet, para concluir que os dois modelos/métodos, embora diferentes, poderiam eventualmente ser integrados num único sistema de análise e representação.

  4. PEG Enhancement for EM1 and EM2+ Missions

    Science.gov (United States)

    Von der Porten, Paul; Ahmad, Naeem; Hawkins, Matt

    2018-01-01

    NASA is currently building the Space Launch System (SLS) Block-1 launch vehicle for the Exploration Mission 1 (EM-1) test flight. The next evolution of SLS, the Block-1B Exploration Mission 2 (EM-2), is currently being designed. The Block-1 and Block-1B vehicles will use the Powered Explicit Guidance (PEG) algorithm. Due to the relatively low thrust-to-weight ratio of the Exploration Upper Stage (EUS), certain enhancements to the Block-1 PEG algorithm are needed to perform Block-1B missions. In order to accommodate mission design for EM-2 and beyond, PEG has been significantly improved since its use on the Space Shuttle program. The current version of PEG has the ability to switch to different targets during Core Stage (CS) or EUS flight, and can automatically reconfigure for a single Engine Out (EO) scenario, loss of communication with the Launch Abort System (LAS), and Inertial Navigation System (INS) failure. The Thrust Factor (TF) algorithm uses measured state information in addition to a priori parameters, providing PEG with an improved estimate of propulsion information. This provides robustness against unknown or undetected engine failures. A loft parameter input allows LAS jettison while maximizing payload mass. The current PEG algorithm is now able to handle various classes of missions with burn arcs much longer than were seen in the shuttle program. These missions include targeting a circular LEO orbit with a low-thrust, long-burn-duration upper stage, targeting a highly eccentric Trans-Lunar Injection (TLI) orbit, targeting a disposal orbit using the low-thrust Reaction Control System (RCS), and targeting a hyperbolic orbit. This paper will describe the design and implementation of the TF algorithm, the strategy to handle EO in various flight regimes, algorithms to cover off-nominal conditions, and other enhancements to the Block-1 PEG algorithm. This paper illustrates challenges posed by the Block-1B vehicle, and results show that the improved PEG

  5. Efeito de agrotóxicos sobre Calepitrimerus vitis (Nalepa, 1905 (Acari: Eriophyidae na região da campanha do Rio Grande do Sul

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    Paulo Ricardo Ebert Siqueira

    2012-03-01

    Full Text Available O Rio Grande do Sul apresenta a maior área de cultivo de videiras no Brasil; neste Estado, a Região da Campanha possui características edafoclimáticas adequadas à produção de cultivares viníferas de origem europeia e apresentou, na primeira década deste milênio, significativa expansão de área. A partir de 2005, o ácaro-da-ferrugem-da-videira, Calepitrimerus vitis, passou a ser encontrado com frequência nos vinhedos da Campanha. Nos países onde esta espécie está estabelecida, reduções significativas na produção de uva são observadas, e a necessidade de controle é constante, não havendo, até o momento, produtos autorizados no Brasil para o controle de C. vitis. O presente trabalho objetivou avaliar diversos agrotóxicos quanto à eficiência de controle de C. vitis em um vinhedo comercial, na região da Campanha do Rio Grande do Sul. O experimento foi conduzido durante os anos de 2008 e 2009, comparando o nível de infestação nas plantas através do emprego de armadilhas adesivas. No ano de 2008, a eficiência de controle durante o outono não diferiu da testemunha. O emprego de enxofre em uma única pulverização no outono, ou em duas pulverizações, sendo uma no outono e outra na primavera, controlou eficientemente C. vitis na primavera. Os acaricidas abamectina e espirodiclofeno foram eficientes no controle de C. vitis na primavera, tanto com uma única pulverização, como com duas pulverizações, sendo uma no outono e outra na primavera. No outono de 2009, os tratamentos com espirodiclofeno e cihexatina foram eficientes no controle de C. vitis. O ácaro-da-ferrugem-da-videira é controlado eficientemente com pulverizações de cihexatina, enxofre ou espirodiclofeno no outono ou durante a primavera com abamectina, enxofre ou espirodiclofeno.

  6. Terapia breve em hospital fechado

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    Paulo Cesar Sandler

    1978-09-01

    Full Text Available O presente estudo cuida de pacientes "difíceis" da clínica psiquiátrica e psicoterápica: os pacientes que apresentam o fenômeno da atuação, cuja aproximação terapêutica tem se demonstrado problemática, mesmo com o advento das modernas técnicas de psicoterapia e das comunidades terapêuticas. Os diagnósticos psiquiátricos destes pacientes variam: são neuróticos, apresentam transtornos de pesonalidade, são psicóticos e quase sempre com graves doenças secundárias: alcoolismo e toxicomania (Códigos Classificação Internacional de Doenças 295 a 299, 300. 301, 303 e 304. Propõe-se, à luz da compreensão psicanalítica destas pessoas, um tratamento psicoterápico breve, focal, com o auxílio de uma hospitalização em regime fechado. Para a avaliação dos resultados do método psicoterápico diádico, criaram-se critérios de cura coerentes com a proposta terapêutica, e equiparam-se estes critérios clínicos a valores numéricos. Utilizando 36 pacientes internados, verificou-se até que ponto eles alcançavam estes critérios. Cada paciente recebeu um escore - valor numérico - que expressou o seu desempenho durante o tratamento em regime de internação, e sua conduta pós-alta hospitalar, durante um seguimento médio de 21 meses. Estes 36 pacientes puderam ser divididos em dois grupos: os de evolução favorável (obtivemos 36,1% e os de evolução desfavorável. Por meio de uma amostra sistemática composta por 41 pacientes que não foram submetidos ao método, internados no mesmo período de tempo, no mesmo hospital, e pareados com nossa casuística, fêz-se uma comparação estatística entre os percentis obtidos nas evoluções dos dois grupos. O valor do teste estatístico, o chi quadrado, não foi significante. O exame das proporções correspondentes a cada patologia em separado sugeriu fortemente que o tratamento estaria indicado nas neuroses e nas psicoses, mas que seria realmente ineficaz nos transtornos de

  7. Bioassay-Guided Antidiabetic Study of <em>Phaleria macrocarpaem> Fruit Extract

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    Mohd Z. Asmawi

    2012-04-01

    Full Text Available An earlier anti-hyperglycemic study with serial crude extracts of <em>Phaleria macrocarpaem> (PM fruit indicated methanol extract (ME as the most effective. In the present investigation, the methanol extract was further fractionated to obtain chloroform (CF, ethyl acetate (EAF, <em>n>-butanol (NBF and aqueous (AF fractions, which were tested for antidiabetic activity. The NBF reduced blood glucose (<em>p> < 0.05 15 min after administration, in an intraperitoneal glucose tolerance test (IPGTT similar to metformin. Moreover, it lowered blood glucose in diabetic rats by 66.67% (<em>p> em>< 0.05, similar to metformin (51.11%, glibenclamide (66.67% and insulin (71.43% after a 12-day treatment, hence considered to be the most active fraction. Further fractionation of NBF yielded sub-fractions I (SFI and II (SFII, and only SFI lowered blood glucose (<em>p em>< 0.05, in IPGTT similar to glibenclamide. The ME, NBF, and SFI correspondingly lowered plasma insulin (<em>p em>< 0.05 and dose-dependently inhibited glucose transport across isolated rat jejunum implying an extra-pancreatic mechanism. Phytochemical screening showed the presence of flavonoids, terpenes and tannins, in ME, NBF and SFI, and LC-MS analyses revealed 9.52%, 33.30% and 22.50% mangiferin respectively. PM fruit possesses anti-hyperglycemic effect, exerted probably through extra-pancreatic action. Magniferin, contained therein may be responsible for this reported activity.

  8. OCCURENCE OF Salmonella IN CHICKEN CARCASSES AND CUTS COMMERCIALIZED IN GOIÂNIA-GO OCORRÊNCIA DE Salmonella EM CARCAÇAS E CORTES DE FRANGOS COMERCIALIZADOS EM GOIÂNIA-GO

    Directory of Open Access Journals (Sweden)

    Iolanda Aparecida Nunes

    2007-09-01

    Full Text Available

    Its was analised 53 chicken carcasses and commercial cuts acquired in supermarkets of Goiânia-GO aiming to isolate <em>Salmonella>. The contamination rate was 13.2% and serotypes <em>S. brandenburgem>, <em>S. typhimuriumem>, <em>S. agonaem>, <em>S. derbyem> and <em>S. hadorem> were identified.

    KEY-WORDS: <em>Salmonella>; chicken; chicken carcasses; commercial cuts.

    No presente estudo foram analisadas, com vistas ao isolamento de <em>Salmonella>, 53 amostras de carcaças e cortes comerciais de frangos colhidas em supermercados e casas de carnes de Goiânia - GO. Observou-se freqüência média do patógeno de 13,2%, sendo identificados os sorotipos <em>E. brandenburgem>, <em>S. typhimuriumem>, <em>S.> <em>agona>, <em>S. derbyem> e <em>S. Hadarem>.

    PALAVRAS-CHAVE: <em>Salmonella>; frango de corte; carcaça; cortes comerciais.

  9. Alimentazione di <em>Marmota marmotaem> in praterie altimontane delle dolomiti bellunesi

    Directory of Open Access Journals (Sweden)

    Alessandro Rudatis

    2006-03-01

    Full Text Available Abstract The diet of <em>Marmota marmotaem> in the mountain prairie of south-eastern Italian Alps. Diet composition of two family groups of alpine marmots was investigated in two areas of the Agordino’s Dolomites (Italian Alps in June-September 2001, by means of microscopic analysis of faeces and of direct observation of feeding activity. During the whole period of activity, a high consume of Angiosperms was confirmed, especially plants in flower; among them the “graminoids” seemed to play an important role only during the initial part of the active period. Generally vegetative parts predominated over flowers. The ingestion of animal preys was not confirmed by the analysis of droppings. Comparing diet composition of the two groups, Graminaceae (<em>Poa>, <em>Phleum>, Compositae (<em>Achillea>, Cyperaceae/Juncaceae, Leguminosae (<em>Anthyllis>, Rosaceae, and Labiatae (<em>Prunella>, <em>Stachys> formed the bulk of marmot diet in the study areas. Diet showed low diversity considering the abundance of plant species in the surrounding environment. Food resources were probably used in relation to their easy digestibility, with a high content in proteins, sugar and water. The knowledge of vegetation features in relation to marmot trophic habits can represent a useful tool for the management of this species. Riassunto Il regime alimentare di due gruppi di Marmotta alpina è stato studiato in giugno-settembre 2001 in due aree delle Dolomiti agordine (SE Italia, attraverso l’analisi microscopica delle feci e l’osservazione diretta dell’attività alimentare. Durante tutto il periodo di attività si è notato un forte consumo di Angiosperme, specialmente piante a fiore, mentre le ”graminoidi” sembra giochino un ruolo importante all’inizio della stagione. In generale le parti vegetali predominano sui fiori. L’ingestione di prede animali non è stata

  10. Soybean breeding with EMS mutagenesis

    International Nuclear Information System (INIS)

    Gu Aiqiu; Geng Yuxuan; Zhu Baogo

    1990-01-01

    Full text: 'Yudou No. 2' is a good soybean variety grown in the Honan Province. EMS was applied to seeds and valuable mutants were selected among the descendants. In a short period, several genetically stable strains were obtained. In the M 2 population, the early-maturing mutants were the most frequent, followed by short culm mutants. Other mutations altered leaf shape, grain size, habit of pod bearing, number of pods etc. One of the best strains is '86-180'. It is highly disease-resistant and ripens 19 days earlier than the original 'Yodou No. 2'. It bears more pods, although the seeds are a little bit smaller and is highly productive (4110kg/ha). Another good strain is '86-223'. It is also disease-resistant and highly productive (3390kg/ha). (author)

  11. Mastites em ruminantes no Brasil

    OpenAIRE

    Acosta, Atzel Candido; Silva, Leonildo Bento Galiza da; Medeiros, Elizabeth Sampaio; Pinheiro-Júnior, José Wilton; Mota, Rinaldo Aparecido

    2016-01-01

    Resumo: A mastite é uma doença complexa e considerada uma das principais causas de perdas à indústria leiteira mundial. Objetivou-se com esta revisão compilar informações dos últimos dez anos sobre a mastite em ruminantes no Brasil. A prevalência da mastite subclínica chega a 48,64% na espécie bovina, 30,7% na espécie caprina, 31,45% na espécie ovina e 42,2% na espécie bubalina, destacando-se a etiologia por Staphylococcus spp. Os fatores de risco associados à ocorrência de mastite estão rela...

  12. O "Popular" em Egberto Gismonti

    Directory of Open Access Journals (Sweden)

    Rúrion Soares Melo

    2007-07-01

    Full Text Available Nossa música, rica e moderna, não pode ser integralmente enquadrada em tipologias. Este artigo destaca a importância do material musical e da autonomia nos procedimentos composicionais, e propõe que a compreensão das obras de Egberto Gismonti não pode se restringir aos elementos propriamente "brasileiros" do "nacional-popular".Brazilian music, rich and modern, cannot be integrally fit in typologies. This article detaches the importance of the musical material and the autonomy in the compositional procedures, and considers that the understanding of the work of Egberto Gismonti cannot be restricted to strictly "Brazilian" elements of the "nacional-popular".

  13. Soybean breeding with EMS mutagenesis

    Energy Technology Data Exchange (ETDEWEB)

    Aiqiu, Gu; Yuxuan, Geng; Baogo, Zhu [Institute of Genetics, Academia Sinica, Beijing (China)

    1990-01-01

    Full text: 'Yudou No. 2' is a good soybean variety grown in the Honan Province. EMS was applied to seeds and valuable mutants were selected among the descendants. In a short period, several genetically stable strains were obtained. In the M{sub 2} population, the early-maturing mutants were the most frequent, followed by short culm mutants. Other mutations altered leaf shape, grain size, habit of pod bearing, number of pods etc. One of the best strains is '86-180'. It is highly disease-resistant and ripens 19 days earlier than the original 'Yodou No. 2'. It bears more pods, although the seeds are a little bit smaller and is highly productive (4110kg/ha). Another good strain is '86-223'. It is also disease-resistant and highly productive (3390kg/ha). (author)

  14. Medidas e forma em geometria

    OpenAIRE

    Edjan Fernandes dos Santos

    2015-01-01

    O trabalho traz inicialmente uma abordagem histÃrica, da GrÃcia (com os pitagÃricos), com o matemÃtico Eudoxo, fazendo referÃncia a talvez à maior obra matemÃtica, os livros de Euclides. Em seguida, trazemos definiÃÃes e construÃÃes sobre os nÃmeros reais com um corpo completo, os conceitos de Ãnfimo, supremo, sequÃncias infinitas com destaque as convergentes, sequÃncia de Cauchy e os trÃs teoremas fundamentais para o curso de cÃlculo, o teorema do anulamento, do valor intermediÃrio e de Weie...

  15. HAICAIS EM MANOEL DE BARROS

    Directory of Open Access Journals (Sweden)

    Profª Drª Nery Reiner

    2012-09-01

    Full Text Available O objetivo deste artigo, voltado para a criação poética de Manoel de Barros, é focalizar o conceito da obra de arte como jogo. Escolhemos Manoel de Barros, porque o lúdico, a brincadeira e o humor estão sempre presentes em sua obra. A escolha dos dados, o encaixe de palavras escolhidas a dedo, no eixo paradigmático, formam um caleidoscópio, mostrando novas estruturas, deixando explícito o desejo de brincar com os elementos linguísticos e da natureza. Para este trabalho, escolhemos, para análise, pequenos poemas semelhantes aos haicais japoneses e outros menores ainda, com dois ou até um verso apenas. Contaremos, nesta pesquisa, com a ajuda de teóricos como Johan Huizinga, Ezra Pound, Octavio Paz, Lévi-Strauss, Olga Savary e Alfredo Bosi.

  16. Synthesis and Antibacterial Evaluation of New <em>N>-acylhydrazone Derivatives from Dehydroabietic Acid

    Directory of Open Access Journals (Sweden)

    Wen Gu

    2012-04-01

    Full Text Available A series of new <em>N>-acylhydrazone derivatives were synthesized in good yields through the reactions of dehydroabietic acid hydrazide with a variety of substituted arylaldehydes. The structures of the synthesized compounds were confirmed by IR, 1H- and 13C-NMR, ESI-MS, elemental analysis and single crystal X-ray diffraction. From the crystal structure of compound 4l, the C=N double bonds of these <em>N>-acylhydrazones showed (<em>E>-configuration, while the NMR data of compounds 4aq indicated the existence of two rotamers for each compound in solution. The target compounds were evaluated for their antibacterial activities against four microbial strains. The result suggested that several compounds exhibited pronounced antibacterial activities. Particularly, compound 4p exhibited good antibacterial activity against <em>Staphylococcus aureusem> and <em>Bacillus subtilisem> comparable to positive control. The possible antibacterial metabolism and the strategy for further optimization of this compound were also discussed.

  17. Peat soils stabilization using Effective Microorganisms (EM)

    Science.gov (United States)

    Yusof, N. Z.; Samsuddin, N. S.; Hanif, M. F.; Syed Osman, S. B.

    2018-04-01

    Peat soil is known as geotechnical problematic soil since it is the softest soil having highly organic and moisture content which led to high compressibility, low shear strength and long-term settlement. The aim of this study was to obtain the stabilized peat soils using the Effective Microorganisms (EM). The volume of EM added and mixed with peat soils varied with 2%, 4%, 6%, 8% and 10% and then were cured for 7, 14 and 21 days. The experiment was done for uncontrolled and controlled moisture content. Prior conducting the main experiments, the physical properties such as moisture content, liquid limit, specific gravity, and plastic limit etc. were measure for raw peat samples. The Unconfined Compressive Strength (UCS) test was performed followed by regression analysis to check the effect of EM on the soil strength. Obtained results have shown that the mix design for controlled moisture contents showed the promising improvement in their compressive strength. The peat soil samples with 10% of EM shows the highest increment in UCS value and the percentage of increments are in the range of 44% to 65% after curing for 21 days. The regression analysis of the EM with the soil compressive strength showed that in controlled moisture conditions, EM significantly improved the soil stability as the value of R2 ranged between 0.97 – 0.78. The results have indicated that the addition of EM in peat soils provides significant improving in the strength of the soil as well as the other engineering properties.

  18. Avaliação de parâmetros clínicos e hematológicos de eqüinos submetidos a um programa de controle estratégico de Amblyomma cajennense (Fabricius, 1787 (Acari: Ixodidae Evaluation of clinical and hematological parameters of equines submitted to a strategic control program of Amblyomma cajennense (Fabricius, 1787 (Acari: Ixodidae

    Directory of Open Access Journals (Sweden)

    A.P. Cunha

    2008-02-01

    Full Text Available Estudaram-se aspectos clínicos e hematológicos em eqüinos submetidos a um programa de controle estratégico de A. cajennense. Os tratamentos carrapaticidas foram realizados a cada sete dias e divididos em dois módulos, o primeiro com início em abril de 2004, e o segundo com início em julho do mesmo ano, utilizando-se a base química piretróide - cipermetrina na concentração de 0,015%. Além do acompanhamento clínico dos animais, foram realizados hemogramas completos antes e após o programa. As dosagens bioquímicas de bilirrubinas, gama-glutamiltransferase (GGT, aspartato aminotransferase (AST, creatina kinase (CK, proteína total, albumina e globulinas, foram realizadas antes, durante e ao final do programa. Os resultados demonstraram que houve uma melhora no quadro hematológico dos animais após o programa de controle. Os tratamentos carrapaticidas, na forma em foram aplicados, não provocaram alterações desfavoráveis nos parâmetros clínicos e hematológicos dos eqüinos. Tais informações podem ser consideradas na busca de alternativas viáveis e seguras para o controle dessa espécie de carrapato.Clinical and hematological parameters were studied in equines submitted to a strategic control program of Amblyomma cajennense. The acaricide treatments were carried to each seven days and divided in two batteries, the first one began in April 2004 and the second in July 2004. A pyrethroid chemical base - 0.015% cypermethrin was used. Clinical examinations of the animals and complete hemograms were carried before and after the control program of the tick. Seric dosages of bilirrubins, gamma-glutamiltransferase (GGT, aspartate aminotransferase (AST, creatin kinase (CK, total protein, albumin, and globulins, were carried before and throughout the experiment. The results showed an improvement in the hematological parameters of the animals after the end of control program. The acaricide treatments did not cause undesirable alterations

  19. New histochemical and morphological findings in the female genital tract of Boophilus microplus (Acari, Ixodidae: an attempt toward the elucidation of fertilization in ticks Novas características histoquímicas e morfológicas no trato genital feminino de Boophilus microplus (Acari: Ixodidae: uma tentativa para a elucidação da fertilização nos carrapatos

    Directory of Open Access Journals (Sweden)

    Casimiro García-Fernández

    2005-09-01

    Full Text Available At present not only is the site of fertilization in ticks still unknown but it is also unclear as to how this mystery can be solved. Signs of fertilization can be observed throughout the female genital tract and these can be clues for the elucidation of the unsolved questions relating to ticks fertilization. In Boophilus microplus (Canestrini, 1887 the most important signs are the following: the final eversion of the acrosomal canal in females ready for oviposition; the presence of small tubules, resembling the subplasmalemal process of the spermatozoon between the oviduct cells; budding nuclei throughout the female genital tract; and the two Feulgen and DAPI positive areas in the oocyte at vitelogenesis. These morphological characteristics suggest that fertilization takes place in the internal cylinder which extends from the uterus to the ovary itself.Até o momento, não só o lugar da fertilização em carrapatos é desconhecido, mas também não é claro como este mistério possa ser esclarecido. Sinais de fertilização podem ser observados ao longo do trato genital feminino e estes podem ser pistas para a elucidação das questões relacionadas à fertilização em ácaros. Em Boophilus microplus (Canestrini, 1887, os sinais mais importantes são os seguintes: a eversão final do canal acrossômico em fêmeas prestes à oviposição; a presença de pequenos túbulos assemelhando-se a processos subplasmalêmicos dos espermatozóides entre as células do oviduto; brotamentos nucleares ao longo do trato genital feminino e as duas áreas Feulgen e DAPI positivas nos ovócitos em processo de vitelogênese. Estas características morfológicas sugerem que a fertilização ocorra no cilindro interno, o qual se estende desde o útero até o ovário inclusive.

  20. Cytotoxicity and Glycan-Binding Properties of an 18 kDa Lectin Isolated from the Marine Sponge <em>Halichondria em>okadai>

    Directory of Open Access Journals (Sweden)

    Yasuhiro Ozeki

    2012-04-01

    Full Text Available A divalent cation-independent lectin—HOL-18, with cytotoxic activity against leukemia cells, was purified from a demosponge, <em>Halichondria okadaiem>. HOL-18 is a 72 kDa tetrameric lectin that consists of four non-covalently bonded 18 kDa subunits. Hemagglutination activity of the lectin was strongly inhibited by chitotriose (GlcNAcβ1-4GlcNAcβ1-4GlcNAc, fetuin and mucins from porcine stomach and bovine submaxillary gland. Lectin activity was stable at pH 4–12 and temperatures lower than 60 °C. Frontal affinity chromatography with 16 types of pyridylaminated oligosaccharides indicated that the lectin had an affinity for <em>N>-linked complex-type and sphingolipid-type oligosaccharides with <em>N>-acetylated hexosamines and neuramic acid at the non-reducing termini. The lectin killed Jurkat leukemia T cells and K562 erythroleukemia cells in a dose- and carbohydrate-dependent manner.

  1. Echolocation calls and morphology in the Mehelyi’s (<em>Rhinolophus mehelyiem> and mediterranean (<em>R. euryaleem> horseshoe bats: implications for resource partitioning

    Directory of Open Access Journals (Sweden)

    Egoitz Salsamendi

    2006-03-01

    Full Text Available Abstract <em>Rhinolophus euryaleem> and <em>R. mehelyiem> are morphologically very similar species and their distributions overlap extensively in the Mediterranean basin. We modelled their foraging behaviour using echolocation calls and wing morphology and, assuming niche segregation occurs between the two species, we explored how it is shaped by these factors. Resting frequency of echolocation calls was recorded and weight, forearm length, wing loading, aspect ratio and wing tip shape index were measured. <em>R. mehelyiem> showed a significantly higher resting frequency than <em>R. euryaleem>, but differences are deemed insufficient for dietary niche segregation. Weight and forearm length were significantly larger in <em>R. mehelyiem>. The higher values of aspect ratio and wing loading and a lower value of wing tip shape index in <em>R. melehyiem> restrict its flight manoeuvrability and agility. Therefore, the flight ability of <em>R. mehelyiem> may decrease as habitat complexity increases. Thus, the principal mechanism for resource partitioning seems to be based on differing habitat use arising from differences in wing morphology. Riassunto Ecolocalizzazione e morfologia nei rinolofi di Mehely (<em>Rhinolophus mehelyiem> e euriale (<em>R. euryaleem>: implicazioni nella segregazione delle risorse trofiche. <em>Rhinolophus euryaleem> e <em>R. mehelyiem> sono specie morfologicamente molto simili, la cui distribuzione risulta largamente coincidente in area mediterranea. Il comportamento di foraggiamento delle due specie è stato analizzato in funzione delle caratteristiche dei segnali di ecolocalizzazione e della morfologia alare, ed è stata valutata l’incidenza di questi fattori nell’ipotesi di una segregazione delle nicchie. È stata rilevata la frequenza a riposo dei segnali ultrasonori, così come il peso, la lunghezza dell’avambraccio, il carico alare, e due

  2. Training for Defense? From Stochastic Traits to Synchrony in Giant Honey Bees (<em>Apis dorsataem>

    Directory of Open Access Journals (Sweden)

    Gerald Kastberger

    2012-08-01

    Full Text Available In Giant Honey Bees, abdomen flipping happens in a variety of contexts. It can be either synchronous or cascaded, such as in the collective defense traits of shimmering and rearing-up, or it can happen as single-agent behavior. Abdomen flipping is also involved in flickering behavior, which occurs regularly under quiescent colony state displaying singular or collective traits, with stochastic, and (semi- synchronized properties. It presumably acts via visual, mechanoceptive, and pheromonal pathways and its goals are still unknown. This study questions whether flickering is preliminary to shimmering which is subject of the <em>fs em>(flickering-shimmering-transition> hypothesis? We tested the respective prediction that trigger sites (<em>ts> at the nest surface (where shimmering waves had been generated show higher flickering activity than the alternative non-trigger sites (<em>nts>. We measured the flickering activity of <em>ts>- and <em>nts>-surface bees from two experimental nests, before and after the colony had been aroused by a dummy wasp. Arousal increased rate and intensity of the flickering activity of both <em>ts>- and <em>nts> cohorts (P < 0.05, whereby the flickering intensity of <em>ts>-bees were higher than that of <em>nts>-bees (P < 0.05. Under arousal, the colonies also increased the number of flickering-active <em>ts>- and <em>nts>-cohorts (P < 0.05. This provides evidence that cohorts which are specialist at launching shimmering waves are found across the quiescent nest zone. It also proves that arousal may reinforce the responsiveness of quiescent curtain bees for participating in shimmering, practically by recruiting additional trigger site bees for expanding repetition of rate and intensity of shimmering waves. This finding confirms the <em>fs-transition> hypothesis and constitutes evidence that flickering is part of a basal colony-intrinsic information system

  3. Mastite em pequenos ruminantes no Brasil

    OpenAIRE

    Peixoto,Rodolfo de M.; Mota,Rinaldo Aparecido; Costa,Mateus M. da

    2010-01-01

    Este artigo objetivou revisar as informações recentes sobre mastite em pequenos ruminantes, abrangendo etiologia, epidemiologia, aspectos de controle e profilaxia. Houve a preocupação em reunir resultados de estudos desenvolvidos no Brasil, uma vez que a mastite tem a interferência de uma série de fatores, como fatores ambientais e outros decorrentes dos sistemas de manejo empregados, condições essas determinantes para etiologia e epidemiologia da enfermidade. A prevalência da mastite em capr...

  4. Psicologia feminista em Portugal : dificuldades e conquistas

    OpenAIRE

    Saavedra, Luísa

    2010-01-01

    Pretende-se, com este artigo, fazer um balanço do que tem sido a Psicologia Feminista em Portugal. Tendo em conta que cada ciência comporta evoluções e posições epistemológicas e metodológicas distintas, começar-se-á por traçar em linhas gerais alguns marcos da psicologia no que diz respeito à forma de abordar as questões das mulheres e homens e definindo o que se entende por psicologia feminista. Seguidamente, serão evidenciados alguns aspectos políticos e sociais que condicionaram o desenvo...

  5. Ondas de spin em redes decoradas

    OpenAIRE

    WanÃssa FaÃanha da Silva

    2014-01-01

    Sistema de baixa dimensionalidade tÃm atraÃdo uma grande atenÃÃo ultimamente devido a sistemas como grafeno e nanotubos de carbono. Tais sistemas tÃm grandes possibilidades de aplicaÃÃes tecnolÃgicas, em particular na criaÃÃo de dispositivos eletrÃnicos, devido Ãs suas propriedades eletrÃnicas especÃficas. Nesse sentido, o estudos de outros sistemas em baixa dimensÃo se torna urgente. Mais especificamente, o estudo de propriedades magnÃticas de materiais de materiais em baixa dimensionalidade...

  6. Metabolic Profiling of <em>Lactococcus lactisem> Under Different Culture Conditions

    Directory of Open Access Journals (Sweden)

    Normah Mohd Noor

    2012-07-01

    Full Text Available Gas chromatography mass spectrometry (GC-MS and headspace gas chromatography mass spectrometry (HS/GC-MS were used to study metabolites produced by <em>Lactococcus lactisem> subsp. <em>cremoris> MG1363 grown at a temperature of 30 °C with and without agitation at 150 rpm, and at 37 °C without agitation. It was observed that <em>L. lactisem> produced more organic acids under agitation. Primary alcohols, aldehydes, ketones and polyols were identified as the corresponding trimethylsilyl (TMS derivatives, whereas amino acids and organic acids, including fatty acids, were detected through methyl chloroformate derivatization. HS analysis indicated that branched-chain methyl aldehydes, including 2-methylbutanal, 3-methylbutanal, and 2-methylpropanal are degdradation products of isoleucine, leucine or valine. Multivariate analysis (MVA using partial least squares discriminant analysis (PLS-DA revealed the major differences between treatments were due to changes of amino acids and fermentation products.

  7. Pré-resfriamento em água de lichia 'B3' mantida em armazenamento refrigerado

    OpenAIRE

    del Aguila,Juan Saavedra; Hofman,Peter; Campbell,Terrence; Marques,José Roberto; Heiffig-del Aguila,Lília Sichmann; Kluge,Ricardo Alfredo

    2009-01-01

    Este experimento visou a estudar o efeito de diferentes temperaturas e tempos de pré-resfriamento em água sobre a qualidade de lichias 'B3', após a frigoconservação. Os tratamentos foram: T1 = controle (sem pré-resfriamento); T2 = imersão por cinco minutos em água a 2,5°C; T3 = imersão por 10 minutos em água a 2,5°C; T4 = imersão por 20 minutos em água a 2,5°C; T5 = imersão por sete minutos em água a 6°C; T6 = imersão por 20 minutos em água a 8°C e T7 = imersão por 10 minu...

  8. Feeding habits of the genet <em>Genetta genettaem> in an Iberian continental wetland

    Directory of Open Access Journals (Sweden)

    Maite Sánchez

    2009-02-01

    Full Text Available Abstract This study quantified the diet of the genet <em>Genetta genettaem> in an Iberian continental wetland, the Galachos Nature Reserve, northern Spain, based on the frequency with which items appeared in five monthly-surveyed latrines during 2004-2005. Prey types were identified <em>de visuem> using identification keys and expert advice. the genet was confirmed as an opportunistic and generalist predator, its diet including mammals (95.0%, plants (68.3% and arthropods (60.0% as main prey. With the exception of a newly available prey species, the alien crayfish <em>Procambarus clarkiiem>, the genet probably consumed arthropods because of chance encounters rather than active search. The consumption of fruits and small mammals varied seasonally. Riassunto Alimentazione della genetta <em>Genetta genettaem> in un'area umida continentale della penisola iberica La dieta della genetta è stata investigata in un'area umida interna della Spagna settentrionale, la riserva Naturale dei Galachos. La frequenza di ciascuna categoria alimentare è stata espressa come numero di occorrenze mansili in cinque latrine monitorate per il periodo 2004-2005. Le categorie sono state identificate <em>de visuem> tramite chiavi per il riconoscimento o l'intervento di singoli esperti. I risultati confermano il comportamento alimentare generalista e opportunista della genetta. La dieta ha incluso principalmente mammiferi (95%, vegetali (68.3% e artropodi (60%. Questi ultimi, con l'eccezione del gambero <em>Procambarus clarkiiem>, introdotto e di recente presenza, sono probabilmente utilizzati in modo opportunistico, piuttosto che in seguito a ricerca attiva. L'uso dei frutti e dei micromammiferi varia stagionalmente.

  9. Over-Expression of CYP2E1 mRNA and Protein: Implications of Xenobiotic Induced Damage in Patients with <em>De Novoem> Acute Myeloid Leukemia with inv(16(p13.1q22; <em>CBFβ>-MYH11em>

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    Carlos E. Bueso-Ramos

    2012-08-01

    Full Text Available Environmental exposure to benzene occurs through cigarette smoke, unleaded gasoline and certain types of plastic. Benzene is converted to hematotoxic metabolites by the hepatic phase-I enzyme CYP2E1, and these metabolites are detoxified by the phase-II enzyme NQO1. The genes encoding these enzymes are highly polymorphic and studies of these polymorphisms have shown different pathogenic and prognostic features in various hematological malignancies. The potential role of different cytochrome p450 metabolizing enzymes in the pathogenesis of acute myeloid leukemia (AML in an area of active interest. In this study, we demonstrate aberrant CYP2E1 mRNA over-expression by quantitative real-time polymerase chain reaction in 11 cases of <em>de novoem> AML with inv(16; CBFβ-MYH11. CYP2E1 mRNA levels correlated with <em>CBFβ>-MYH11 em>transcript levels and with bone marrow blast counts in all cases. CYP2E1 over-expression correlated positively with NQO1 mRNA levels (R2 = 0.934, n = 7. By immunohistochemistry, CYP2E1 protein was more frequently expressed in AML with inv(16 compared with other types of AML (<em>p> < 0.001. We obtained serial bone marrow samples from two patients with AML with inv(16 before and after treatment. CYP2E1 mRNA expression levels decreased in parallel with <em>CBFβ>-MYH11 em>transcript levels and blast counts following chemotherapy. In contrast, CYP1A2 transcript levels did not change in either patient. This is the first study to demonstrate concurrent over-expression of CYP2E1 and NQO1 mRNA in AML with inv(16. These findings also suggest that a balance between CYP2E1 and NQO1 may be important in the pathogenesis of AML with inv(16.

  10. Synthesis and Sensory Evaluation of <em>ent>-Kaurane Diterpene Glycosides

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    Venkata Sai Prakash Chaturvedula

    2012-07-01

    Full Text Available Catalytic hydrogenation of the three <em>ent>-kaurane diterpene glycosides isolated from <em>Stevia rebaudianaem>, namely rubusoside, stevioside, and rebaudioside-A has been carried out using Pd(OH2 and their corresponding dihydro derivatives have been isolated as the products. Synthesis of reduced steviol glycosides was performed using straightforward chemistry and their structures were characterized on the basis of 1D and 2D NMR spectral data and chemical studies. Also, we report herewith the sensory evaluation of all the reduced compounds against their corresponding original steviol glycosides and sucrose for the sweetness property of these molecules.

  11. Complete BWR--EM LOCA analysis using the WRAP--EM system

    International Nuclear Information System (INIS)

    Beckmeyer, R.R.; Gregory, M.V.; Buckner, M.R.

    1979-01-01

    The Water Reactor Analysis Package, Evaluation Model (WRAP--EM), provides a complete analysis of postulated loss-of-coolant accidents (LOCA's) in light--water nuclear power reactors. The system is being developed at the Savannah River Laboratory (SRL) for use by the Nuclear Regulatory Commission (NRC) to interpret and evaluate reactor vendor, evaluation model (EM) analyses. The initial version of the WRAP--EM system for analysis of boiling water reactors (BWR's) is operational. To demonstrate the complete capability of the WRAP--BWR--EM system, a LOCA analysis has been performed for the Hope Creek Plant

  12. Monitores de diagnóstico em Mamografia : (Os 5MP em Portugal)

    OpenAIRE

    Timóteo, Maria Teresa

    2012-01-01

    O carcinoma da mama é o mais comum nas mulheres, em Portugal morrem cerca de 1500 mulheres por ano devido a esta patologia. Serviu o presente estudo para investigar se os Hospitais da Região de Lisboa e Vale do Tejo estão equipados, com monitores de diagnóstico em mamografia, que correspondam com as guidelines europeias. O serviço de Mamografia, em Portugal rege-se por estas guidelines, em que é referenciado que para um correcto diagnóstico, com toda a sensibilidade e especific...

  13. Osteocondromatose em gato: relato de caso

    Directory of Open Access Journals (Sweden)

    S. Winter

    Full Text Available RESUMO A osteocondromatose é caracterizada por nódulos únicos ou múltiplos decorrentes de um crescimento ósseo excessivo benigno. É encontrada em cães, gatos, equinos e humanos. Em felinos, tem maior incidência dos dois aos quatro anos de idade. A etiologia em gatos está relacionada ao vírus da leucemia felina, e também já foi encontrada relação com o fibrossarcoma. A manifestação clínica depende do local acometido e do tamanho da lesão. O diagnóstico definitivo é por meio de histopatologia e o prognóstico é desfavorável, pois ocorrem muitas recidivas. Este relato de caso objetiva descrever a apresentação dessa enfermidade em um felino jovem.

  14. Probióticos em avicultura

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    Gil de los Santos João Rodrigo

    2005-01-01

    Full Text Available Durante os últimos anos, o incremento de toxinfecções alimentares em humanos pela ingestão de produtos avícolas contaminados com bactérias, sugeriu que produtos oriundos de aves portadoras dessas bactérias podem veiculá-las ao consumidor, provocando doenças entéricas em humanos. Essas observações e a restrição, por parte do mercado consumidor, ao uso de antimicrobianos na produção animal, aumentaram o interesse mundial pelos probióticos e, conseqüentemente, o número de pesquisas realizadas. Esta revisão mostra os avanços e a situação em que se encontram os probióticos em relação à indústria avícola.

  15. Comments on theoretical foundation of "EM Drive"

    Science.gov (United States)

    Wu, C.-W.

    2018-03-01

    The concept of EM Drive has attracted much attention and groups of work have been conducted to prove or verify it, of which the published experimental outcome is criticized in great details while the theoretical foundation has not been discussed. The present essay investigates on the theoretical derivations of the net thrust in the "EM drive" and reveals the self-contradiction arising at the very start, when the law of conservation of momentum was utilized and opposed simultaneously.

  16. Isolamento de Corynebacterium aquaticum em leite bubalino

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    Andréa Alice da Fonseca Oliveira

    2005-08-01

    Full Text Available Estudou-se 548 quartos mamários de búfalas, realizando-se exame clínico, CMT para detecção de mastite e coleta de amostras para isolamento bacteriano. Houve crescimento em duas amostras de Corynebacterium aquaticum caracterizadas bioquimicamente. Relata-se a participação do agente como colonizador do úbere e possível causador de mastites em bubalinos.

  17. Resumos de artigos em Português

    OpenAIRE

    Bogdan Patrut

    2010-01-01

    Resumos de artigos em Português
    BRAIN. Broad Research in Artificial Intelligence and Neuroscience
    CÉREBRO. Ampla pesquisa em Inteligência Artificial e Neurociências
    ISSN 2067-3957
    Volume 1, Número 2
    Abril de 2010, "Feliz Verão 2010!"
    www.brain.edusoft.ro
    Editor - chefe: Bogdan Pătruţ

  18. Feocromocitoma em criança

    OpenAIRE

    Herdy,Gesmar Volga Haddad; Olivaes,Maria Cecília; Lopes,Vânia Glória Silami; Pontes,Carlos Adriano Gazanego; Ormond Filho,João Batista; Fonseca,Eliene C.

    2005-01-01

    Feocromocitoma é uma neoplasia de células cromafins que causa sintomas e sinais decorrentes da libertação de catecolminas e é muito rara em crianças. Relatamos um caso feocromocitoma em criança, com difícil manejo clínico, confirmado também pela anatomia-patológica e curado após a ressecção cirúrgica.

  19. NOVOS PARASITÓIDES EM OVOS DE Dirphia Araucariae (LEPIDOPTERA, ATTACIDAE NEW PARASITOIDS IN EGGS OF Dirphia araucariae (LEP.; ATTACIDAE

    Directory of Open Access Journals (Sweden)

    Jácomo Divino Borges

    2007-09-01

    Full Text Available

    Foram observados novos parasitóides nos ovos de <em>Dirphia> <em>araucariae> Jones, 1908 (<em>Lepidoptera>, <em>Attacidae>. A porcentagem do parasitismo em ovos do hospedeiro, coletados na Fazenda Marabá, Município de Congonhinhas (PR foi de 20,71%, e as espécies de parasitóides identificadas e suas freqüências do: <em>Anastatus> <em>sp> (0,45%; <em>A. charitos em>De Santis, 1982 (1,08%; A. (<em>Proanastatus> <em>excavatus> (De Santis, 1952 (1,97%; <em>Ooencyrtus> <em>sp> (17,86%; <em>O.> <em>blastothricoide> De Santis, 1988 (43,65%; e <em>O. dirphiaeem> De Santis, 1988 (34,99%.

    PALAVRAS-CHAVE: <em>Anastatus> <em>spp>; <em>Araucaria> <em>angustifolia>; controle biológico; lagarta-da-araucária; <em>Ooencyrtus sppem>; pinheiro-do-Paraná.

    The parasitism in Dirphia araucariae Jones, 1908 (<em>Lepidoptera>, <em>Attacidae> was studied and the parasitoids observed on its eggs collected in 'Fazenda Marabá’, Municipality of Congonhinhas, State of Paraná, Brazil, were the following: <em>Anastatus> <em>sp>.; <em>A>. <em>charitos> De Santis, 1982; <em>A.> (<em>Proanastatus> <em>excavatus> (De Santis, 1952; <em>Ooencyrtus> <em>sp.>; <em>O. blastothricoideem> De Santis, 1988, and <em>O. dirphiaeem> De Santis, 1988, with a frequency of 0.45%, 1.08%, 1.97%, 17.86%, 43.65% and 34.99%, respectively.

    KEY-WORDS: Biological control; Paraná-pine.

  20. Development of 101 Gene-based Single Nucleotide Polymorphism Markers in Sea Cucumber, <em>Apostichopus japonicusem>>

    Directory of Open Access Journals (Sweden)

    Wei Lu

    2012-06-01

    Full Text Available Single nucleotide polymorphisms (SNPs are currently the marker of choice in a variety of genetic studies. Using the high resolution melting (HRM genotyping approach, 101 gene-based SNP markers were developed for <em>Apostichopus japonicusem>, a sea cucumber species with economic significance for the aquaculture industry in East Asian countries. HRM analysis revealed that all the loci showed polymorphisms when evaluated using 40 <em>A. japonicusem> individuals collected from a natural population. The minor allele frequency ranged from 0.035 to 0.489. The observed and expected heterozygosities ranged from 0.050 to 0.833 and 0.073 to 0.907, respectively. Thirteen loci were found to depart significantly from Hardy–Weinberg equilibrium (HWE after Bonferroni corrections. Significant linkage disequilibrium (LD was detected in one pair of markers. These SNP markers are expected to be useful for future quantitative trait loci (QTL analysis, and to facilitate marker-assisted selection (MAS in <em>A. japonicusem>.

  1. Effect of β,β-Dimethylacrylshikonin on Inhibition of Human Colorectal Cancer Cell Growth <em>in Vitro em>and <em>in Vivoem>

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    Ting Feng

    2012-07-01

    Full Text Available In traditional Chinese medicine, shikonin and its derivatives, has been used in East Asia for several years for the prevention and treatment of several diseases, including cancer. We previously identified that β,β-dimethylacrylshikonin (DA could inhibit hepatocellular carcinoma growth. In the present study, we investigated the inhibitory effects of DA on human colorectal cancer (CRC cell line HCT-116 <em>in vitroem> and <em>in vivoem>. A viability assay showed that DA could inhibit tumor cell growth in a time- and dose-dependent manner. Flow cytometry showed that DA blocks the cell cycle at G0/G1 phase. Western blotting results demonstrated that the induction of apoptosis by DA correlated with the induction of pro-apoptotic proteins Bax, and Bid, and a decrease in the expression of anti-apoptotic proteins Bcl-2 and Bcl-xl. Furthermore, treatment of HCT-116 bearing nude mice with DA significantly retarded the growth of xenografts. Consistent with the results <em>in vitroem>, the DA-mediated suppression of HCT-116 xenografts correlated with Bax and Bcl-2. Taken together, these results suggest that DA could be a novel and promising approach to the treatment of CRC.

  2. Dermatite multifatorial em um canino

    Directory of Open Access Journals (Sweden)

    C.B. Matos

    2012-12-01

    Full Text Available Relatou-se um caso clínico de dermatite multifatorial em cão, envolvendo Demodex canis, Sporothrix schenckii e bactérias dos gêneros Staphylococcus e Streptococcus. O animal, macho, da raça Pit Bull, com um ano e três meses de idade, apresentou lesões úmidas, hiperêmicas, descamativas e ulcerativas nas regiões do pescoço e do tórax. Exames laboratoriais confirmaram o diagnóstico de infecção concomitante por fungo, bactéria e parasito. A terapia antimicrobiana com moxidectina, itraconazol e amoxicilina foi efetiva, com remissão dos sinais clínicos após 30 dias de tratamento. Este relato salienta a importância do diagnóstico de certeza, que foi determinante para estabelecimento da terapêutica adequada e recuperação do animal.

  3. Monorquidismo em um equino marchador

    Directory of Open Access Journals (Sweden)

    Jéssica Fontana de Magalhães

    2015-06-01

    Full Text Available O monorquidismo é um quadro raramente descrito em equinos, que não apresenta descrições prévias na literatura nacional. Trata-se de um equino adulto brasileiro, com oito anos de idade, sem raça definida, porém com características de raças de origem nacional. Por abordagem inguinal do lado esquerdo, localizou-se a túnica vaginal intacta, que, aberta, continha a cauda de um epidídimo mal formado, o ducto deferente e um delgado pedículo vascular, mas sem indícios de testículo. Exames histológicos e hormonais confirmaram a ausência de tecido testicular. Conclui-se que os exames histológicos e hormonais são essenciais para o diagnóstico de monorquidismo que, apesar de raro, também pode acometer equinos nacionais

  4. Self: um conceito em desenvolvimento

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    Lídia Suzana Rocha de Macedo

    2012-08-01

    Full Text Available Diversas definições de self coexistem nas teorias e práticas psicológicas. Essa variedade é resultante de bases epistemológicas a partir das quais se adotam estratégias diferentes para abordar e demarcar os limites do objeto em questão e descrevê-lo. Este estudo teve como objetivo oferecer uma revisão dos conceitos de self e uma reflexão sobre como esse conceito se articula nas diferentes abordagens teóricas da psicologia. Destaca-se que dilemas centrais à psicologia do desenvolvimento atravessam o conceito de self. Por essa razão, apresenta-se a tese de que, ao analisar cada definição de self, deve-se buscar responder como cada teoria colocou-se diante das dicotomias estabilidade versus transformação, específico versus universal e mundo interno versus mundo externo.

  5. Mastites em ruminantes no Brasil

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    Atzel Candido Acosta

    Full Text Available Resumo: A mastite é uma doença complexa e considerada uma das principais causas de perdas à indústria leiteira mundial. Objetivou-se com esta revisão compilar informações dos últimos dez anos sobre a mastite em ruminantes no Brasil. A prevalência da mastite subclínica chega a 48,64% na espécie bovina, 30,7% na espécie caprina, 31,45% na espécie ovina e 42,2% na espécie bubalina, destacando-se a etiologia por Staphylococcus spp. Os fatores de risco associados à ocorrência de mastite estão relacionados a problemas no saneamento ambiental e ao manejo dos animais. As bactérias isoladas do leite mastítico apresentam maior percentual de resistência a penicilina, ampicilina, amoxicilina e neomicina e a utilização de técnicas moleculares no diagnóstico dos agentes causadores de mastites no país, ainda é escassa o que dificulta a obtenção de um diagnóstico mais rápido, sensível e específico.

  6. Literatura e(m hipertexto

    Directory of Open Access Journals (Sweden)

    Bellei, Sérgio Luiz Prado

    2010-01-01

    Full Text Available A crescente hegemonia do modo de produção digital de textos literários a serem disponibilizados em rede torna urgente o questionamento a respeito das possíveis mudanças que ocorrem na produção de hipertextos eletrônicos a partir de textos literários. O presente ensaio desenvolve uma reflexão crítica sobre o problema a partir de uma distinção do duplo significado de tecnologia enquanto, de um lado, instrumental para a produção de objetos e, de outro, ambiente estruturante que não só produz objetos mas, principalmente, molda os sujeitos que deles fazem uso, reconstituindo no processo hábitos e procedimentos. Se levarmos a sério o conceito de tecnologia enquanto ambiente estruturante, então é bem possível que a literatura traduzida ou produzida diretamente no formato hipertextual sofra modificações profundas quando comparadas à produção literária no meio impresso

  7. Identification of Volatile Components of Liverwort (<em>Porella cordaeanaem> Extracts Using GC/MS-SPME and Their Antimicrobial Activity

    Directory of Open Access Journals (Sweden)

    Maria Elisabetta Guerzoni

    2012-06-01

    Full Text Available Chemical constituents of liverwort (<em>Porella cordaeanaem> extracts have been identified using solid-phase microextraction-gas chromatography mass spectrometry (SPME-GC/MS. The methanol, ethanol and ethyl acetate extracts were rich in terpenoids such as sesquiterpene hydrocarbons (53.12%, 51.68%, 23.16%, and monoterpene hydrocarbons (22.83%, 18.90%, 23.36%, respectively. The dominant compounds in the extracts were β-phellandrene (15.54%, 13.66%, 12.10% and β-caryophyllene (10.72%, 8.29%, 7.79%, respectively. The antimicrobial activity of the extracts was evaluated against eleven food microorganisms using the microdilution and disc diffusion methods. The minimum inhibitory concentration (MIC varied from 0.50 to 2.00 mg/mL for yeast strains (<em>Saccharomyces cerevisiae 635em>, <em>Zygosacharomyces bailii 45em>, <em>Aerobasidium pullulans L6Fem>, <em>Pichia membranaefaciens OC 71em>, <em>Pichia membranaefaciens OC 70em>, <em>Pichia anomalaem> <em>CBS 5759em>, <em>Pichia anomala DBVPG 3003em> and<em> em>>Yarrowia lipolytica RO13em>, and from 1.00 to 3.00 mg/mL for bacterial strains<em> em>(Salmonella> <em>enteritidis 155em>, <em>Escherichia coli 555em> and <em>Listeria monocytogenes 56Lyem>. Methanol extract showed better activity in comparison with ethanol and ethyl acetate extracts. High percentages of monoterpene and sesquiterpene hydrocarbons could be responsible for the better antimicrobial activity.

  8. Revivendo experiências: em foco a leitura em comunidades

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    Marlene Edite Pereira Rezende

    Full Text Available Este artigo teve como objetivo recuperar, de forma destacada, duas experiências de trabalho de extensão na UFMG: o carro-biblioteca da ECI\\UFMG e a implantação das Bibliotecas Públicas e Biblioteca Móvel do COLTEC\\UFMG. A estas experiências somaram-se ainda as informações sobre as atividades de extensão, através de Carros-Biblioteca, realizadas no âmbito da Biblioteca Pública Estadual Luiz de Bessa e pelo SESC. Revendo estas experiências torna-se patente a importância destas ações para as comunidades, mas, revelam-se também as dificuldades/limitações para a continuidade e ampliação destes serviços que são de caráter significativo para a população. Destaca-se também que os projetos visam permitir o acesso à leitura em comunidades com carências socioculturais, mas, demostram, de forma crítica, a realidade e os desafios dos municípios de Caparaó e Alto Caparaó na administração e manutenção das bibliotecas lá instaladas. Argumenta-se ainda, como aspecto significativo, a necessidade de articulação das comunidades, de forma a reivindicarem junto aos gestores públicos o atendimento aos direitos da população.

  9. Teores proteicos em dietas para vacas Holandesas leiteiras em confinamento

    Directory of Open Access Journals (Sweden)

    V.R. Paiva

    2013-08-01

    Full Text Available Avaliou-se o efeito de dietas com níveis de proteína bruta ‒ PB (10, 12, 14 e 16% na matéria seca ‒ MS em vacas Holandesas mestiças com produção de leite médio (PL de 13kg/dia. Utilizou-se silagem de milho como volumoso, e a relação volumoso:concentrado foi de 75:25. Houve aumento linear para o consumo de todos os componentes da dieta, exceto para o consumo de carboidratos totais e carboidratos não fibrosos (CNF, que reduziram linearmente. O consumo dos nutrientes digestíveis totais (NDT apresentou comportamento quadrático, com valor máximo estimado de 10,13kg/dia, na dose de 15,62% de PB na dieta. As digestibilidades de PB, EE, FDN e FDNcp aumentaram linearmente. Já os valores de digestibilidade de MS, MO, CNF e NDT apresentaram efeito quadrático, estimando-se ponto de máximo de 65,09; 67,23; 78,35 e 67,92 nas doses de 15,39; 15,22; 15,62 e 15,68% de PB, respectivamente. A PL, sem e com correção para 3,5% de gordura, a variação de peso corporal e a composição do leite aumentaram linearmente, exceto para lactose, que não apresentou efeito. O nível de 14% de PB na dieta é o mais indicado para alimentação de vacas com produção média de 13kg/dia de leite.

  10. <em>Helicobacter pyloriem> Disrupts Host Cell Membranes, Initiating a Repair Response and Cell Proliferation

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    Hsueh-Fen Juan

    2012-08-01

    Full Text Available <em>Helicobacter pyloriem> (<em>H. pyloriem>, the human stomach pathogen, lives on the inner surface of the stomach and causes chronic gastritis, peptic ulcer, and gastric cancer. Plasma membrane repair response is a matter of life and death for human cells against physical and biological damage. We here test the hypothesis that <em>H. pyloriem> also causes plasma membrane disruption injury, and that not only a membrane repair response but also a cell proliferation response are thereby activated. Vacuolating cytotoxin A (VacA and cytotoxin-associated gene A (CagA have been considered to be major <em>H. pyloriem> virulence factors. Gastric cancer cells were infected with <em>H. pyloriem> wild type (vacA+/cagA+, single mutant (ΔvacA or ΔcagA or double mutant (ΔvacA/ΔcagA strains and plasma membrane disruption events and consequent activation of membrane repair components monitored. <em>H. pyloriem> disrupts the host cell plasma membrane, allowing localized dye and extracellular Ca2+ influx. Ca2+-triggered members of the annexin family, A1 and A4, translocate, in response to injury, to the plasma membrane, and cell surface expression of an exocytotic maker of repair, LAMP-2, increases. Additional forms of plasma membrane disruption, unrelated to <em>H.> pylori em>exposure, also promote host cell proliferation. We propose that <em>H. pyloriem> activation of a plasma membrane repair is pro-proliferative. This study might therefore provide new insight into potential mechanisms of <em>H. pyloriem>-induced gastric carcinogenesis.

  11. Net Energy, CO2 Emission and Land-Based Cost-Benefit Analyses of <em>Jatropha> em>Biodiesel: A Case Study of the Panzhihua Region of Sichuan Province in China

    Directory of Open Access Journals (Sweden)

    Xiangzheng Deng

    2012-06-01

    Full Text Available Bioenergy is currently regarded as a renewable energy source with a high growth potential. Forest-based biodiesel, with the significant advantage of not competing with grain production on cultivated land, has been considered as a promising substitute for diesel fuel by many countries, including China. Consequently, extracting biodiesel from <em>Jatropha> curcasem> has become a growing industry. However, many key issues related to the development of this industry are still not fully resolved and the prospects for this industry are complicated. The aim of this paper is to evaluate the net energy, CO2 emission, and cost efficiency of <em>Jatropha> biodiesel as a substitute fuel in China to help resolve some of the key issues by studying data from this region of China that is well suited to growing <em>Jatropha>. Our results show that: (1 <em>Jatropha> biodiesel is preferable for global warming mitigation over diesel fuel in terms of the carbon sink during <em>Jatropha> tree growth. (2 The net energy yield of <em>Jatropha> biodiesel is much lower than that of fossil fuel, induced by the high energy consumption during <em>Jatropha> plantation establishment and the conversion from seed oil to diesel fuel step. Therefore, the energy efficiencies of the production of <em>Jatropha> and its conversion to biodiesel need to be improved. (3 Due to current low profit and high risk in the study area, farmers have little incentive to continue or increase <em>Jatropha> production. (4 It is necessary to provide more subsidies and preferential policies for <em>Jatropha> plantations if this industry is to grow. It is also necessary for local government to set realistic objectives and make rational plans to choose proper sites for <em>Jatropha> biodiesel development and the work reported here should assist that effort. Future research focused on breading high-yield varieties, development of efficient field

  12. Local feeding specialization of the red fox (<em>Vulpes vulpesem> in response to eastern cottontail (<em>Sylvilagus floridanusem> introduction (NW Italy

    Directory of Open Access Journals (Sweden)

    Alessandro Balestrieri

    2006-03-01

    Full Text Available Abstract To appreciate the influence of the introduction of the Eastern cottontail (<em>Sylvilagus floridanusem> on the food habits of the red fox (Vulpes vulpes, between June 1998 and February 2000 fox diet was investigated by means of scat analysis (N=115 in a 250 ha wide Natural Reserve of NW Italy, and compared with data collected in the same area prior to cottontail colonization (1988-1989. Comparison included also the diet of badgers (<em>Meles melesem>, considered as potential competitors for food resources. Alien lagomorphs (mean percent volume, Vm% = 68% represented by far the most exploited resource, only three other food items reaching values of mean percent volume barely higher than 5%. Cottontails frequency of occurrence did not vary according either to season or to their reproductive cycle (II-IX vs. X-I, whilst diet niche breadth varied inversely proportional to the use of this key-resource. Overall fox trophic niche breadth varied from 0.64 in 1988-89 to 0.31 in 1998-00 (B, Levin’s index. These findings led us to consider the feeding habits of the fox in the study area as a result of local specialization of a typical generalist carnivore, according to the predictions of optimal foraging theory. No variation occurred in the badger niche breadth since cottontail introduction, whilst niche overlap between foxes and badgers decreased from 0.59 to 0.13 (O, Pianka’s index, possibly reducing competition for food in summer. Riassunto Specializzazione alimentare a livello locale della Volpe <em>Vulpes vulpesem> in risposta all’introduzione del Silvilago <em>Sylvilagus floridanusem> (Italia nord occidentale. Per valutare gli effetti dell’introduzione del Silvilago (<em>Sylvilagus floridanusem> sul comportamento alimentare della volpe (<em>Vulpes vulpesem>, nel periodo giugno 1998-febbraio 2000, la dieta del carnivoro è stata definita tramite l’analisi di 115

  13. Antibacterial Secondary Metabolites from the Cave Sponge <em>Xestospongia em>sp.

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    Sridevi Ankisetty

    2012-05-01

    Full Text Available Chemical investigation of the cave sponge <em>Xestospongia em>sp. resulted in the isolation of three new polyacetylenic long chain compounds along with two known metabolites. The structures of the new metabolites were established by NMR and MS analyses. The antibacterial activity of the new metabolites was also evaluated.

  14. Refração por retinoscopia com luz em faixa em cães

    OpenAIRE

    Ranzani,J.J.T.; Mobricci,L.A.L.; Carvalho,L.R.; Brandão,C.V.S.

    2008-01-01

    A refração ocular por retinoscopia com luz em faixa em 10 cães normais, sem raça definida, demonstrou que a maioria dos animais, independentemente do porte, apresentou tendência à hipermetropia, além de anisometropia e astigmatismo.

  15. Enzymatic Properties and Mutational Studies of Chalcone Synthase from <em>Physcomitrella patensem>

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    Mahiran Basri

    2012-08-01

    Full Text Available <em>Pp>CHS is a member of the type III polyketide synthase family and catalyses the synthesis of the flavonoid precursor naringenin chalcone from <em>p>-coumaroyl-CoA. Recent research reports the production of pyrone derivatives using either hexanoyl-CoA or butyryl-CoA as starter molecule. The Cys-His-Asn catalytic triad found in other plant chalcone synthase predicted polypeptides is conserved in <em>Pp>CHS. Site directed mutagenesis involving these amino acids residing in the active-site cavity revealed that the cavity volume of the active-site plays a significant role in the selection of starter molecules as well as product formation. Substitutions of Cys 170 with Arg and Ser amino acids decreased the ability of the <em>Pp>CHS to utilize hexanoyl-CoA as a starter molecule, which directly effected the production of pyrone derivatives (products. These substitutions are believed to have a restricted number of elongations of the growing polypeptide chain due to the smaller cavity volume of the mutant’s active site.

  16. <em>In Vitro em>Phytotoxicity and Antioxidant Activity of Selected Flavonoids

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    Rita Patrizia Aquino

    2012-05-01

    Full Text Available The knowledge of flavonoids involved in plant-plant interactions and their mechanisms of action are poor and, moreover, the structural characteristics required for these biological activities are scarcely known. The objective of this work was to study the possible <em>in vitro em>phytotoxic effects of 27 flavonoids on the germination and early radical growth of <em>Raphanus sativus em>L.> and <em>Lepidium sativumem> L., with the aim to evaluate the possible structure/activity relationship. Moreover, the antioxidant activity of the same compounds was also evaluated. Generally, in response to various tested flavonoids, germination was only slightly affected, whereas significant differences were observed in the activity of the various tested flavonoids against radical elongation. DPPH test confirms the antioxidant activity of luteolin, quercetin, catechol, morin, and catechin. The biological activity recorded is discussed in relation to the structure of compounds and their capability to interact with cell structures and physiology. No correlation was found between phytotoxic and antioxidant activities.

  17. Home range dynamics of mountain hare (<em>Lepus timidusem> in the Swiss Alps

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    Anne-Sophie Genini-Gamboni

    2009-02-01

    Full Text Available Abstract Little is known on the ecology and behaviour of alpine mountain hare (<em>Lepus timidusem>. Between 1996 and 1997 we analysed by radiotracking the pattern of space use of 8 mountain hares from the Swiss Alps. We estimated home range size using both the kernel density estimator and the minimum convex polygon. We found smaller ranges (38 ha compared to those reported for the species in boreal or arctic habitats, but similar to ranges in Scotland. Hares did not use a centre of major activity (core area and showed high home range overlap, confirming their non-territorial behaviour. Smaller ranges were used during winter compared to the other seasons, whilst no difference in size was found between sexes. Riassunto Dinamica dell'uso dello spazio della lepre bianca (<em>Lepus timidusem> nelle Alpi Svizzere Le informazioni relative all'ecologia e al comportamento della lepre alpina (<em>Lepus timidusem> sono ad oggi scarse. In questo studio abbiamo analizzato l'utilizzo dello spazio di una popolazione di lepre bianca sulle Alpi Svizzere. Tra il 1996 e il 1997 sono stati marcati con redio collare 8 individui di lepre alpina. L'<em>home rangeem> è stato calcolato utilizzando lo stimatore di densità kernel (KDE ed il metodo del minimo poligono convesso (MCP. L'ampiezza degli <em>home rangeem> (38 ha è risultata inferiore a quella riportata per la specie in habitat boreali ed artici. ma simile a quella riscontrata in Scozia. All'interno dell <em>home rangeem> non è stato rilevato alcun centro di maggiore attività (<em>core areaem> ed è stata evidenziata una notevole sovrapposizione tra gli stessi, confermando la non territorialità della specie. Le aree frequentate in inverno sono risultate più piccole rispetto alle altre stagioni e non sono state riscontrate differenze tra i sessi.

  18. The EM technology development strategy

    International Nuclear Information System (INIS)

    Frank, C.W.; Barainca, M.; Kubo, A.S.

    1992-01-01

    The Office of Technology Development (TD) supports research and development of technologies that will lower cost, reduce risk, improve safety, and accelerate cleanup of the Nuclear Weapons Complex and provide solutions to currently untractable environmental problems. The TD strategic plan outlines Applied Research, Development, Demonstration, Testing, and Evaluation (RDDT and E) that will provide needed technology products to be used by Environmental Restoration and Waste Management operations (i.e., our customers). The TD strategic plan is derived from EM Goals, Objectives, and Strategy and is incorporated into DOE'S Five-Year Plan for Environmental Restoration and Waste Management. The TD strategic plan is developed based on integrating customer requirements, and is complemented by a top-down, bottom-up analysis of Site Specific Technology Needs and environmental problems. The execution of TD's strategic plan is implemented largely through Integrated Programs (IP) and Integrated Demonstrations (ID). IDs have proven to be a cost-effective method of managing technology development, testing and evaluation, and implementation of successful technology systems into the DOE Environmental Restoration and Waste Management Programs. The Savannah River ID for Volatile Organic Compounds (VOCs) in Saturated Soils resulted in a 51 percent cost savings over stand-alone demonstrations, saving over $8 million. The IPs and IDs are selected based on customer needs, technical complexity, and complex-wide regulatory and compliance agreements. New technology systems are selected for incorporation into an IP or ID from offerings of the DOE laboratories, industry, and the universities. A major TD initiative was announced in August 1991, with the release of a Program Research and Development Announcement (PRDA) requesting industry and universities to propose innovative new technologies to clean up the Weapons Complex. (author)

  19. Are EM's communication tools effective? Evaluation research of two EM publications

    International Nuclear Information System (INIS)

    Wight, Evelyn; Gardner, Gene; Harvey, Tony

    1992-01-01

    As a reflection of its growing culture of openness, and in response to the public's need for accurate information about its activities, the U.S. Department of Energy (DOE) Office of the Assistant Secretary for Environmental Restoration and Waste Management (EM) has increased the amount of information available to the public through communication tools such as brochures, fact sheets, and a travelling exhibit with an interactive computer display. Our involvement with this effort has been to design, develop, and critique booklets, brochures, fact sheets and other communication tools for EM. This paper presents an evaluation of the effectiveness of two communication tools we developed: the EM Booklet and the EM Fact Sheets. We measured effectiveness using non-parametric testing. This paper describes DOE's culture change, EM's communication tools and their context within DOE'S new open culture, our research, test methods and results, the significance of our research, and our plans for future research. (author)

  20. Consumo de energia em escalonadores de transações em sistemas de memória transacional em software

    OpenAIRE

    Marques Junior, Ademir [UNESP

    2016-01-01

    O conceito de Memória Transacional foi criado para simplificar a sincronização de dados em memória, necessária para evitar a computação de dados inconsistentes por processadores multinúcleos, que se tornaram padrão devido às limitações encontradas em processadores de um núcleo. Em evolução constante pela busca de desempenho, os escalonadores de transação foram criados como alternativa aos gerenciadores de contenção presentes nos Sistemas de Memória Transacional. O consumo de energia é preocup...

  1. Infracommunities of intestinal helminths of the Red Fox <em>Vulpes vulpesem> (Linnaeus, 1758 from Italian Alps

    Directory of Open Access Journals (Sweden)

    Anna Rita Di Cerbo

    2003-10-01

    Full Text Available <em>Vulpes vulpesem> (Linnaeus, 1758 is one of the most common carnivore in Italy and its spread includes almost the whole national territory. The species shows an high ecological plasticity and a variable diet composition connected in part to human sources. This high adaptability permits the red foxes to colonize different habitats like the suburbs of large cities as well as the small villages located in mountain areas. On the other hand, the tourism pressure seems to assume a great importance in the Alps, also in those areas where the foxes live. So, indirect interactions could take place between these animals and the humans. The role of <em>V. vulpesem> in the zoonoses has not to be understated since this carnivore could transmit parasitic diseases that are able to cause serious pathologies in humans. This study aims just to investigate on intestinal communities of helmiths of <em>V. vulpesem> in order to make progress in current knowledge on epidemiological situation in Italian Alps. During 1998-2003, we have examined 450 foxes from Trentino Alto Adige, Veneto, Lombardia and Valle d'Aosta. The specimens collected were found dead or have been hunted (according to national law n. 157/92 in localities situated between 170 and 2200 m a.s.l. The carcasses were carried to the provincial sections of Zooprofilattici Institutes, where the intestine was drawn by each sample and all the material was sent to the Faculty of Veterinary Medicine of Milan. Parasitological examination of the small intestines was performed by the analysis of the whole sediment and counting technique (SCT. Parasites were preserved in alcohol 70° before to be clarified or stained and identified by microscope (Zeiss Axioscop. Mean abundance, mean intensity and prevalence were calculated for each taxon of helminth. Dates of sampling were grouped within the four seasons. Statistic tests were performed with software package SPSS rel. 11.5 and spatial analysis with the

  2. Prevalência de comportamentos alimentares disfuncionais em mulheres idosas

    OpenAIRE

    Gomes, Fabiana Vanessa Silva

    2015-01-01

    Dissertação de mestrado em Psicologia Aplicada (área de especialização em Psicologia Clínica e da Saúde) Comportamentos alimentares disfuncionais são frequentes em jovens, mas pouco se sabe sobre a sua prevalência em mulheres idosas. Este estudo consiste em estudar a prevalência pontual de comportamentos alimentares disfuncionais em mulheres com 65 anos ou mais. Estudo de prevalência constituído por um momento de avaliação de duas fases com 342 mulheres entre os 65 e 94 anos...

  3. EM International, July 1994, Volume 2

    International Nuclear Information System (INIS)

    1994-01-01

    The Office of Environmental Management (EM) at the Department of Energy (DOE) is seeking out and leveraging foreign technology, data, and resources in keeping with EM's mandate to protect public health and the environment through the safe and cost-effective remediation of the Department's nuclear weapons sites. EM works closely with foreign governments, industry, and universities to obtain innovative environmental technologies, scientific and engineering expertise, and operations experience that will support EM's objectives. Where appropriate, these international resources are used to manage the more urgent risks at our sites, secure a safe workplace, help build consensus on critical issues, and strengthen our technology development program. Through international agreements EM engages in cooperative exchange of information, technology, and individuals. Currently, we are managing agreements with a dozen countries in Europe, Latin America, and Asia. These agreements focus on environmental restoration, waste management, transportation of radioactive wastes, and decontamination and decommissioning. This publication contains the following articles: in situ remediation integrated program; in-situ characterization and inspection of tanks; multimedia environmental pollutant assessment system (MEPAS); LLNL wet oxidation -- AEA technology. Besides these articles, this publication covers: EU activities with Russia; technology transfer activities; and international organization activities

  4. NECESSIDADE E LIBERDADE EM HANNAH ARENDT

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    Odílio Alves Aguiar

    2015-07-01

    Full Text Available O presente artigo visa refletir sobre o pensamento de Hannah Arendt à luz do par conceitual necessidade-liberdade. Esse caminho é produtivo, pois dá conta tanto da obra mais conhecida e reconhecida da autora quanto das suas reflexões anteriores à Origens do Totalitarismo, que se dirigiam, na sua maioria, à comunidade dos Judeus e tinham a questão judaica como ponto central. As meditações arendtianas sobre o judaísmo, consideradas no presente artigo, foram publicadas em duas coletâneas na França: La tradition Cachée (1987 e Auschwitz et Jérusalem (1991. O artigo gravita em torno da defesa arendtiana sobre a inerência entre política e liberdade e sua substituição pela compreensão da política como submetida à esfera da necessidade. Essa perspectiva, segundo a autora, fez-se presente na tradição assimilacionista entre os judeus, mas já tinha obtido a hegemonia na cultura ocidental. Isso sucedeu em razão da primazia da vita contemplativa sobre a vita activa, do trabalho e da questão social em detrimento da ação e, por fim, da supremacia da filosofia da história em prejuízo da Filosofia Política.

  5. Synthesis and Cytotoxicity Evaluation of 13-<em>n>-Alkyl Berberine and Palmatine Analogues as Anticancer Agents

    Directory of Open Access Journals (Sweden)

    Lei Zhang

    2012-09-01

    Full Text Available By introducing long carbon-chain alkyl groups at the C-13 position of berberine and palmatine, 13-<em>n>-hexyl/13-<em>n>-octyl berberine and palmatine chloride analogues 4ad were synthesized and examined by MTT assays for cytotoxic activity in seven human cancer cell lines (7701QGY, SMMC7721, HepG2, CEM, CEM/VCR, KIII, Lewis, yielding IC50 values of 0.02 ± 0.01–13.58 ± 2.84 μM. 13-<em>n>-Octyl palmatine (compound 4d gave the most potent inhibitor activity, with an IC50 of 0.02 ± 0.01 μM for SMMC7721. In all cases, the 13-<em>n>-alkyl berberine and palmatine analogues 4ad were more cytotoxic than berberine and palmatine. In addition, compounds 4ad also exhibited more potent cytotoxicity than berberine and palmatine in mice with S180 sarcoma xenografted<em> in vivoem>. The primary screening results indicated that the 13-<em>n>-hexyl/13-<em>n>-octyl berberine and palmatine analogues might be valuable source for new potent anticancer drug candidates.

  6. Avaliação da atividade repelente do timol, mentol, salicilato de metila e ácido salicilico sobre larvas de Boophilus microplus (Canestrini, 1887 (Acari: Ixodidae Evaluation of repellent activity of thymol, menthol, methyl salicylate and salicylic acid on Boophilus microplus larvae (Canestrini, 1887 (Acari: Ixodidae

    Directory of Open Access Journals (Sweden)

    A.M.S. Novelino

    2007-06-01

    Full Text Available Verificou-se a atividade repelente do timol, mentol, ácido salicílico e salicilato de metila sobre larvas de Boophilus microplus. Essas substâncias foram usadas em emulsões em dimetilsulfuxido aquoso a 1% ou solução aquosa. Para cada substância foram testadas três concentrações, 1,0%; 0,5% e 0,25%, com cinco repetições cada. Cerca de 100 larvas, com 21 dias de idade, foram inseridas na base de hastes de madeira para avaliação da repelência, a cada duas horas, totalizando 12 horas. As concentrações mais elevadas apontaram que as quatro substâncias causaram alteração no comportamento das larvas. Timol, com mortalidade de 65% e 35% de repelência e mentol e salicilato de metila, ambos com 80% de repelência foram os mais eficientes.The repellent activity of thymol, menthol, salicylic acid and methyl salicylate on Boophilus microplus larvae was studied. These substances were tested according to their solubility: emulsions in 1% aqueous dimethylsulphoxide or in pure water. Three concentrations were tested for each substance, 1.0%, 0.5% and 0.25%, with five repetitions for each. Approximately 100 larvae at 21 days of age were placed on the base of wooden sticks and then observed for repellent action every two hours, during twelve hours. The results obtained from the higher concentrations showed that the four substances caused alterations on the larvae behavior. However, thymol (65% of mortality and 35% of repellency, menthol (80% of repellency and methyl salicylate (80% of repellency were the most efficient.

  7. Ceratomicose em equinos Equine keratomycosis

    Directory of Open Access Journals (Sweden)

    Paula Diniz Galera

    2012-07-01

    Full Text Available O cavalo, dado o seu meio ambiente, está sujeito a afecções frequentes da córnea e da conjuntiva, tecidos oculares bastante expostos a bactérias e fungos, principalmente Aspergillus spp. e Fusarium spp. As ceratites ulcerativas bacterianas e fúngicas, bem como as ceratites fúngicas não ulcerativas, caracterizadas principalmente pelo abscesso estromal, são frequentes nessa espécie. Ocorrida a lesão inicial, perpetua-se um ciclo vicioso, com liberação de citocinas inflamatórias, que desencadeiam uma rápida e severa infiltração corneal por células polimorfonucleares. A córnea torna-se sujeita à destruição por enzimas proteolíticas liberadas pelos micro-organismos e por células inflamatórias, capazes de desencadear a dissolução estromal e a perfuração do bulbo ocular. O tratamento clínico para a resolução da doença corneal e o controle da uveíte reflexa deve ser agressivo e associado, muitas das vezes, à terapia cirúrgica. Este artigo discorre sobre a fisiopatologia e o tratamento da ceratomicose em equinos.Environmental and behavioral factors make horses susceptible to corneal and conjunctival lesions, since these structures are constantly exposed to bacteria and fungi specially Aspergillus spp. and Fusarium spp. Bacterial and fungal ulcerative keratitis, as well as non-ulcerative fungal keratitis such as stromal abscess, are frequent in horses. A "cascade" effect follows the initial lesion which triggers the release of inflammatory cytokines followed by an acute and severe infiltrate of polymorphonuclear cells in the cornea. The cornea becomes susceptible to the activity of proteolytic enzymes released by microorganisms and polymorphonuclear cells, resulting in stromal degradation and ocular perforation. The medical treatment targeting the corneal disease and the controlling of reflexive uveitis should be aggressive and surgical therapy should be associated in most of the cases. This paper reviews the

  8. Foucault e a pesquisa educacional em arte

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    Marcilio de Souza Vieira

    2008-09-01

    Full Text Available Este texto objetiva compreender como a obra de Foucault pode contribuir para a pesquisa educacional reconhecendo essas contribuições para o conhecimento na área da educação. Medéia e Hamlet, respectivamente dos tragediógrafos Eurípides e Shakespeare são possibilidades de exploração da loucura, da sexualidade e da linguagem que podemos encontrar nas obras de Foucault. Pensamos esta abordagem como lições que norteiam o pensamento de Foucault acerca da pesquisa educacional em Arte, embora o filósofo não tenha escrito sobre educação, mas exemplifica em suas obras, artistas e obras de arte que nos ajudam a compreender a loucura, a linguagem e a sexualidade e discuti-las nas aulas de Arte, em especial, nas aulas de teatro.

  9. Intense EM filamentation in relativistic hot plasmas

    Energy Technology Data Exchange (ETDEWEB)

    Hu, Qiang-Lin [Department of Physics, Jinggangshan University, Ji' an, Jiangxi 343009 (China); Chen, Zhong-Ping [Department of Physics and Institute for Fusion Studies, The University of Texas at Austin, Austin, TX 78712 (United States); Mahajan, Swadesh M., E-mail: mahajan@mail.utexas.edu [Department of Physics and Institute for Fusion Studies, The University of Texas at Austin, Austin, TX 78712 (United States); Department of Physics, School of Natural Sciences, Shiv Nadar University, Uttar Pradesh 201314 (India)

    2017-03-03

    Highlights: • Breaking up of an intense EM pulse into filaments is a spectacular demonstration of the nonlinear wave-plasma interaction. • Filaments are spectacularly sharper, highly extended and longer lived at relativistic temperatures. • EM energy concentration can trigger new nonlinear phenomena with absolute consequences for high energy density matter. - Abstract: Through 2D particle-in-cell (PIC) simulations, we demonstrate that the nature of filamentation of a high intensity electromagnetic (EM) pulse propagating in an underdense plasma, is profoundly affected at relativistically high temperatures. The “relativistic” filaments are sharper, are dramatically extended (along the direction of propagation), and live much longer than their lower temperature counterparts. The thermally boosted electron inertia is invoked to understand this very interesting and powerful phenomenon.

  10. Preditores do Comportamento Antissocial em Adolescentes

    Directory of Open Access Journals (Sweden)

    Fernanda Lüdke Nardi

    Full Text Available RESUMO Este estudo investigou preditores do comportamento antissocial em 142 adolescentes em medida socioeducativa de internação (G1 e 691 estudantes de escolas públicas (G2, que responderam a um questionário. Foram observadas diferenças significativas entre os grupos quanto ao comportamento antissocial, violência intra e extrafamiliar, uso de drogas e eventos estressores, com médias mais altas em G1. Dentre as variáveis investigadas, grupo, uso de drogas e eventos estressores, juntamente com a covariável sexo, explicaram 66,5% da variável dependente. Um modelo de path analysis demonstrou que as variáveis sexo e ambiente estressor, computado pelos eventos estressores, qualidade do relacionamento familiar e violência intra e extrafamiliar predizem o uso de drogas e comportamentos antissociais.

  11. The DOE/EM facility transition program

    International Nuclear Information System (INIS)

    Bixby, W.

    1994-01-01

    The mission of EM-60 is to plan, implement, and manage receipt of surplus facilities resulting from downsizing of the DOE Weapons Complex facilities and DOE operating program offices to EM, and to ensure prompt deactivation of such facilities in order to reach a minimum surveillance and maintenance condition. The revised organizational structure of EM-60 into four offices (one at headquarters, and the other three at field sites), reflects increased operating functions associated with deactivation, surveillance, and maintenance of facilities. EM-60's deactivation and transition role concerns technical, socioeconomic, institutional, and administrative issues. The primary objective of the deactivation process is to put facilities in the lowest surveillance and maintenance condition safely and quickly by driving down the open-quotes mortgageclose quotes costs of maintaining them until final disposition. EM-60's three key activities are: (1) Inventory of surplus facilities - The 1993 Surplus Facility Inventory and Assessment (SFIA) serves as a planning tool to help the Department and EM-60 determine optimal transition phasing, with safety and cost-effectiveness remaining a priority. (2) Management of accelerated facility life cycle transition - Transitions currently underway illustrate site issues. These include addressing the interests of federal and state regulatory agencies as well as interests of local stakeholders, safe management of large amounts of production residues, and options for treatment, storage, transportation, and disposal. Of equal importance in the transition process is planning the optimal transition of the labor force. (3) Economic development - to address the socio-economic impacts on affected communities of the severe and rapid downsizing of the DOE Weapons Complex, DOE is pursuing an approach that uses the land, equipment, technology assets, and highly skilled local workforces as a basis for alternative economic development

  12. Isojacareubin from the Chinese Herb <em>Hypericum japonicumem>: Potent Antibacterial and Synergistic Effects on Clinical Methicillin-Resistant <em>Staphylococcus aureusem> (MRSA

    Directory of Open Access Journals (Sweden)

    Gen-Chun Wang

    2012-07-01

    Full Text Available Through bioassay-guided fractionation of the extracts from the aerial parts of the Chinese herb <em>Hypericum japonicumem> Thunb. Murray, Isojacareubin (ISJ was characterized as a potent antibacterial compound against the clinical methicillin-resistant S<em>taphylococcus aureusem> (MRSA. The broth microdilution assay was used to determine the minimal inhibitory concentrations (MICs and minimal bactericidal concentrations (MBCs of ISJ alone. The results showed that its MICs/MBCs ranged from 4/16 to 16/64 μg/mL, with the concentrations required to inhibit or kill 50% of the strains (MIC50/MBC50 at 8/16 μg/mL. Synergistic evaluations of this compound with four conventional antibacterial agents representing different types were performed by the chequerboard and time-kill tests. The chequerboard method showed significant synergy effects when ISJ was combined with Ceftazidime (CAZ, Levofloxacin (LEV and Ampicillin (AMP, with the values of 50% of the fractional inhibitory concentration indices (FICI50 at 0.25, 0.37 and 0.37, respectively. Combined bactericidal activities were also observed in the time-kill dynamic assay. The results showed the ability of ISJ to reduce MRSA viable counts by log10CFU/mL at 24 h of incubation at a concentration of 1 × MIC were 1.5 (LEV, additivity, 0.92 (CAZ, indifference and 0.82 (AMP, indifference, respectively. These <em>in vitroem> anti-MRSA activities of ISJ alone and its synergy with conventional antibacterial agents demonstrated that ISJ enhanced their efficacy, which is of potential use for single and combinatory therapy of patients infected with MRSA.

  13. AMIDO RESISTENTE EM FARINHAS DE BANANA VERDE

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    Dayana Portes RAMOS

    2010-03-01

    Full Text Available

    Este trabalho teve por objetivo avaliar o teor de amido resistente (AR em farinhas de banana verde produzidas a partir de treze genótipos de bananeira. Para a produção da farinha foram separadas a 1ª, 3ª e 5ª pencas de cada genótipo, na qual cada penca correspondeu a uma repetição. Os frutos de cada penca no estádio 1 (casca completamente verde de maturação foram descascados manualmente, cortados em fatias circulares de 0,5 cm e desidratados em estufa com circulação de ar a 40ºC por 48 horas, sendo em seguida moídos. A análise de AR consistiu em um processo enzimático, calculando-se o conteúdo final pela concentração de glicose liberada. Os resultados foram submetidos à análise estatística e mostraram diferenças significativas para o teor de AR nas farinhas obtidas dos genótipos de bananeira, sendo que a farinha com maior teor de AR foi a produzida a partir do cultivar ‘Nam’ (40,25% e a menor pelo híbrido ‘Fhia 01’ (10,01%. Pode-se concluir que o conteúdo de AR varia em relação ao genótipo utilizado para a confecção da farinha e que a banana pode ser uma boa opção de estudo de alimento funcional.

  14. Roost selection by barbastelle bats (<em>Barbastella barbastellusem>, Chiroptera: Vespertilionidae in beech woodlands of central Italy

    Directory of Open Access Journals (Sweden)

    Danilo Russo

    2003-10-01

    Full Text Available The barbastelle bat, <em>Barbastella barbastellusem> (Schreber, 1774 is a medium-sized, tree-dwelling vespertilionid classified as ?Endangered? in Italy; in western Europe it may be one of the rarest bat species. <em>B. barbastellusem> shows roosting preferences that should be regarded as a key point in conservation protocols. We examined roost selection in a breeding population of <em>B. barbastellusem> from the Abruzzo Lazio and Molise National Park (central Italy at three levels: woodland structure and management type; tree characteristics; and cavity characteristics. In 2001-2002, we fitted 31 adult <em>B. barbastellusem> (29 lactating females, one pregnant female and one male with 0.48g radio-tags and tracked them to their roost-trees. The bats were tracked for 4.5 ± 3.7 days (range: 0-12 days. We located 33 roosts used by 25 subjects (1.8±1.2 roosts/bat, range 1-5. The bats switched roosts frequently: 13 bats used more than one tree over the study period. A chi-square analysis showed that the roosts were not distributed at random across woodland categories: unmanaged woodland was positively selected, whereas shelterwood-harvested woodland was used in proportion to its availability, and ?pastures+scattered trees? was avoided. Twenty out of 33 roost trees were dead <em>Fagus sylvaticaem> trees; conversely, living <em>F. sylvaticaem> dominated in a tree sample obtained at random; dead trees were used more than expected (Χ² test, <em>P> <0.001. Overall, roost trees were significantly taller and had a larger diameter at breast?s height and more cavities than random trees; they also had a lower percent canopy closure than random trees. To highlight which variables were actually associated with selection, we devised a logistic regression model. The full model was significant (<em>P> <0.001; removal of tree type and tree height affected the model significantly, but the other variables did not produce detectable effects. The

  15. Escabiose em recém-nascido

    Directory of Open Access Journals (Sweden)

    Izilda das Eiras Tâmega

    2016-10-01

    Full Text Available Introdução: A escabiose consiste em uma doença contagiosa causada pelo ácaro Sarcoptes scabie, parasita exclusivo da pele humana, transmitida pelo contato direto com pessoa infectada. Pode ocorrer em qualquer faixa etária, independente do sexo, etnia ou hábitos de higiene, sendo diagnosticada com base na história de coceira noturna, associada a lesões cutâneas. Em geral, há mais de um caso na mesma residência. Apresenta diversos diagnósticos diferenciais por ser essencialmente uma dermatite. Objetivo: Alertar para possibilidade de escabiose na comunidade. Metodologia: As informações contidas nesse relato foram obtidas por meio de consultas médicas, registros fotográficos, evolução, hipóteses diagnósticas e revisão de literatura. Relato de Caso: E.T.L.T, sexo feminino. Aos 21 dias de vida, mãe relata vermelhidão nas costas da paciente e ao exame físico observa-se eritema máculo papular na região de transição parieto-occipital do crânio. A conduta baseia-se em orientação quanto à lavagem de roupa de cama com sabão de coco, remoção de xampu e talco e observação do rash cutâneo. Treze dias depois, mãe refere piora das manchas vermelhas e aparecimento de lesões em tórax anterior e posterior, pescoço e face. Relata ainda, ter cachorro em casa e lesões semelhantes em seu próprio tórax e mamas antes mesmo de a criança nascer. A orientação foi mantida, além de ser receitado enxofre precipitado a 10% para a mãe e a 5% para a criança. Após cinco dias de tratamento, as manchas regrediram e a paciente voltou a ser amamentada. Conclusão: A escabiose continua a ser uma dermatose frequente, cujo tratamento em idade pediátrica se restringe aos “steps” para o diagnóstico correto, desinfecção dos fômites e uso de um bom escabicida, tanto para a criança quanto para seus cuidadores.

  16. NATURE AND LAW IN THE <em>INSTITUTAS> OF GAIO NATUREZA E DIREITO NAS <em>INSTITUTAS> DE GAIO

    Directory of Open Access Journals (Sweden)

    Alfredo Carlos Storck

    2011-09-01

    Full Text Available

    In a very famous passage of his <em>Institutes>, the ancient jurist Gaius had divided the Roman Private Law in two parts: the Civil Law and the Law of People. The former is the Law created by the Roman people, whereas the latter is the Law followed by every nation.

    Despite its classical origin, there is some disagreement among specialists about the right way to interpret this distinction. By the beginning of the 20th century, historians like Michel Villey had seen in this distinction the influence of Greek philosophy (Stoic but even Aristotelian among the Roman jurists. But Levy and more recently Kelly have challenged this view and proposed that, in the roman period, philosophers and jurists had completely distinct notions of nature and natural law. The aim of this paper is not to prove the exact influence of Greek philosophy among jurists, but only to suggest that it is not possible to give an interpretation of the classical texts without ascribing to them a theoretical notion of the natural law.

    Em uma famosa passagem de suas <em>Institutas>, o jurista romano Gaio dividiu o direito privado em duas partes: o direito civil e o direito dos povos. O primeiro é o direito criado pelo povo romano enquanto o segundo é o direito seguido por todas as nações. A despeito de sua origem clássica, os especialistas discordam acerca do modo de interpretar essa tese. No início do século XX, historiadores como Michel Villey viram na distinção sinais da influência da filosofia grega (estóica e mesmo aristotélica entre os juristas romanos. Posteriormente Levy e mais recentemente Kelly contestaram essa afirmação e defenderam que filósofos e juristas possuíam, no período clássico, noções de natureza e direito natural completamente distintas. O objetivo desse artigo não está em provar a exata influência da filosofia grega entre os juristas, mas apenas em sugerir que não é possível fornecer uma interpretação dos

  17. Plasma rico em plaquetas na Implantologia

    OpenAIRE

    Rego, Luis André Ferreira Lopes

    2014-01-01

    Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina Dentária As reabilitações orais implanto-suportadas resolveram grandes limitações das próteses removíveis convencionais. No entanto, o tempo de espera e o sucesso no tratamento com implantes trouxeram novos desafios, tal como o uso de concentrados autólogos de plaquetas para promoção da osteointegração. O plasma rico em plaquetas é definido c...

  18. O potencial evocado cognitivo em adultos normais

    Directory of Open Access Journals (Sweden)

    Franco Glaucio M.

    2001-01-01

    Full Text Available O objetivo deste estudo foi avaliar os resultados do potencial cognitivo auditivo em um grupo de adultos normais. Os testes foram realizados registrando-se a resposta evocada em Cz e Fz. Os dados obtidos foram analisados estatisticamente. São descritas neste trabalho as latências médias de N1, P2, P2AP, N2 e P3, a amplitude de P3, bem como o desvio padrão destas variáveis. Comentam-se algumas dificuldades encontradas na interpretação do teste destacando as limitações de seu uso clínico.

  19. Flexibilidade e mercado de trabalho em Portugal

    OpenAIRE

    Centeno, Mário; Novo, Álvaro

    2008-01-01

    A era de rápida evolução tecnológica em que vivemos, associada em particular ao desenvolvimento de tecnologias de informação, coloca às economias novos desafios, mas também novas oportunidades, abrindo à concorrência mercados anteriormente fechados. Neste ambiente mais competitivo, não é estranho que o apelo a uma maior flexibilidade do emprego tenha ganho proeminência na discussão político-económica da organização do mercado de trabalho.

  20. O ensino de espanhol em escolas pelotenses

    Directory of Open Access Journals (Sweden)

    Erick Rosa Hernandes

    2015-12-01

    Full Text Available Este trabalho analisa a realidade do ensino de língua espanhola em escolas de Ensino Fundamental e Médio da cidade de Pelotas (RS. A ideia surgiu a partir de observações realizadas na disciplina de Estágio de Observação, do curso de Português e Espanhol da UFPel, no semestre 2015/1, a partir do momento em que se pôde perceber que o que o estagiário encontra em sala de aula não condiz com o que é estudado, principalmente em aulas de Linguística Aplicada. Para este estudo, utilizaram-se relatos obtidos pelo autor deste trabalho e de mais quatro informantes, os quais estagiaram em escolas da rede pública pelotense no mesmo período. A análise comparativa fundamentou-se principalmente em textos de teorias de aprendizagem de línguas estrangeiras e nos PCN’s para o ensino de LE’s no Brasil, de modo a contrastar o que afirmam os teóricos e o que realmente encontrou-se nas escolas. Este estudo ancora-se na abordagem qualitativa e na metodologia aplicada por serem formas de pesquisa mais relacionadas às experiências humanas, suas interpretações terem carácter mais flexível e por permitirem uma melhor aplicação ao ensino e aprendizagem de LE. Os resultados obtidos indicam que a realidade do ensino de espanhol nas escolas difere do que ensinam os professores na universidade, pois se percebeu que o ensino dessa língua é precário, não indo ao encontro do que sugerem os PCN’s, no que se refere à transformação do aluno em agente discursivo em LE.Palavras-chave: aprendizagem, espanhol, língua estrangeira.

  1. Variabilità microsatellitare in popolazioni italiane di martora, <em>Martes martesem>

    Directory of Open Access Journals (Sweden)

    Licia Colli

    2003-10-01

    Full Text Available La martora, <em>Martes martesem>, è un mustelide storicamente presente su gran parte del territorio italiano, soprattutto dove siano presenti foreste mature altamente strutturate e ricche di risorse. Nel corso dei decenni passati, cause quali la deforestazione con conseguente frammentazione dell'habitat, la caccia e la persecuzione da parte dell'uomo hanno portato ad un sensibile declino sia nel numero d'individui sia di popolazioni in tutta l'Europa. Frammentazione degli areali e diminuzione del numero di soggetti costituiscono le cause principali di un limitato flusso genico con conseguente formazione di popolazioni isolate di martora e perdita di variabilità genetica (Kyle <em>et al.em>, 2003. Per queste ragioni la martora risulta attualmente tutelata secondo quanto previsto dalla Convenzione di Berna (appendice III e dalla Direttiva europea 92/43/CEE "Habitats & Species". Di fronte a prospettive di tipo conservazionistico, diventa necessario disporre di metodologie per la valutazione della variabilità residua nella specie a livello d'individui e di popolazioni. Secondo numerosi Autori, i microsatelliti costituiscono marcatori molto efficaci nella descrizione della struttura genetica e della storia demografica di specie (Beaumont & Bruford, 1999; Linares, 1999. Il presente lavoro propone i risultati ottenuti attraverso il confronto di due campioni costituiti da individui di <em>Martes martesem> provenienti dalla Sardegna (25 esemplari e dal territorio italiano (6 esemplari. L'analisi è stata condotta a livello di 7 loci microsatellitari dinucleotidici polimorfici. Il valore di FST calcolato dal confronto dei due gruppi è risultato pari a 0,102 e ricade nel <em>range> di variazione identificato di recente in popolazioni nord-europee di martora (Kyle <em>et al.em>, 2003. L'analisi della varianza molecolare (AMOVA, condotta a due livelli gerarchici, ha permesso in particolare di ripartire la varianza del campione

  2. Estilos interpessoais e participação em redes sociais em diferentes ambientes de trabalho

    OpenAIRE

    Brito, Fernanda de Souza

    2012-01-01

    110f. Este estudo examinou a relação entre estilos interpessoais e a participação do indivíduo nas redes sociais em diferentes ambientes de trabalho. Redes sociais se formam pelos vínculos afetivos, cognitivos e de compartilhamento de recursos estabelecidos entre atores sociais. Diferenças de desempenho no trabalho podem estar relacionadas ao posicionamento das pessoas em suas redes sociais. Ocupar uma posição de centralidade em uma rede social possibilita a aquisição de inf...

  3. EMS applications integration in a SCADA; Integracion de aplicaciones EMS en un SCADA

    Energy Technology Data Exchange (ETDEWEB)

    Roses, Rodolfo; Colome, D.G.; Orduna, E.; Vega, C. de la; Camisay, G. [Universidad Nacional de San Juan (Argentina). Inst. de Energia Electrica]. E-mail: roses@iee.unsj.edu.ar

    2001-07-01

    This paper presents the methodology to integrate EMS (Energy Management System) functions in a SCADA system (System Control and Data Acquisition). The implementation methodology of the EMS applications has included the design and database implementation, EMS-SCADA communication, results presentation, logics definition of execution and processing ways. The applications portability characteristics allow integration with different SCADA system with some adaptations on the data communication interface. Thus, a open system has been obtained and implemented successfully in the control center of an Argentine 132 kV network.

  4. Marcas de luxo em Portugal: o sucesso em contexto de crise económica

    OpenAIRE

    Pereira, Filipa Marques Serra

    2011-01-01

    Mestrado em Marketing “O «Luxury Goods Worldwide Market Study» estima que as vendas globais aumentem 10% este ano, para 191 mil milhões de euros” in Diário Económico 2011/10/23. Portugal não é excepção. Surgem constantemente manchetes de jornais acerca do crescimento de mercado de luxo em contexto de crise. As razões que levam os consumidores a escolherem produtos de luxo são muitas e de diversas dimensões: financeira, funcional, individual e social. Além disso, o luxo hoje em dia pode ...

  5. Entrevistas devolutivas em pesquisa em avaliação Psicológica

    OpenAIRE

    Nunes, Maiana Farias Oliveira; Noronha, Ana Paula Porto; Ambiel, Rodolfo Augusto Matteo

    2012-01-01

    Apesar de ser um direito dos participantes, não é comum se observar ações de devolução dos resultados de pesquisas em Psicologia com seres humanos. O presente trabalho consiste em um relato de experiência que tem como objetivo apresentar um processo de devolutiva de dados coletados para um projeto de doutorado, com foco na construção de um instrumento para uso em orientação profissional. Os participantes da pesquisa foram 747 estudantes dos ensinos médio e técnico, de escolas públicas e parti...

  6. Paracoccidioidomicose em crianças em Belém do Pará

    Directory of Open Access Journals (Sweden)

    Fonseca Eliane R.S.

    1999-01-01

    Full Text Available No período janeiro de 1985 e julho de 1996 foram observados 102 casos de paracoccidioidomicose em hospital de Belém, PA. Treze pacientes eram crianças entre 3 e 13 anos de idade, com predomínio do sexo feminino (8:5. Todos apresentavam a forma disseminada subaguda da micose. É comentada a alta prevalência da micose em crianças em áreas endêmicas da Região Amazônica.

  7. Integrating Green Purchasing Into Your Environmental Management System (EMS)

    Science.gov (United States)

    The goal of this report is to help Federal facilities integrate green purchasing into their EMS. The intended audience includes those tasked with implementing an EMS, reducing environmental impacts, meeting green purchasing requirements.

  8. The diet of the fox (<em>Vulpes vulpesem> in woodlands of Orobie Alps (Lombardy region, Northern Italy / Alimentazione della Volpe (<em>Vulpes vulpesem> in aree boscate delle Alpi Orobie

    Directory of Open Access Journals (Sweden)

    Marco Cantini

    1991-07-01

    Full Text Available Abstract The diet of the fox was investigated by analysis of 273 scats, collected along standard trails from April to November 1987 and 1988. Food habits of foxes were described for three altitudinal ranges. Mammals, mainly <em>Clethrionomys glareolusem> and <em>Microtus multiplexem>, were the staple food (percentage of frequency 42.8%, followed by fruits and other vegetables (26.7% and 37.3% respectively. Birds, Invertebrates (mainly Insects and garbage were little eaten. The game species (ungulates, hares, pheasants occurred with a low frequency (8.4% in the diet. The trophic niche breadth varied little through the altitudinal ranges and the seasons. The trophic niche overlap between the fox and the genus <em>Martes> (190 scats of <em>M. martesem> and <em>M. foinaem> were examined is relatively wide (O=0.868. Riassunto La dieta della Volpe (<em>Vulpes vulpesem> in aree boscate delle Alpi Orobie (Val Lesina è stata indagata nel periodo aprile-novembre 1987 e 1988 mediante l'analisi di 273 feci, raccolte lungo percorsi-campione ricadenti in tre piani vegetazionali. I Mammiferi, in particolare <em>Clethrionomys glareolusem> e <em>Microtus multiplexem>, sono la componente principale della dieta (frequenza percentuale 42,8%. Rilevante è anche il consumo di frutti (soprattutto in estate e autunno e di altri vegetali (26,7% e 37,3% rispettivamente, mentre poco frequente è quello di Uccelli, Invertebrati e rifiuti. Complessivamente ridotta è l'azione predatoria della Volpe nei confronti delle specie di interesse venatorio (Ungulati, lepri, Galliformi. L'ampiezza della nicchia trofica mostra modeste variazioni stagionali e altitudinali. I1 grado di sovrapposizione tra la nicchia trofica della Volpe e quella del genere <em>Martes>, quest'ultima ricavata dall'analisi di 190 feci di Martora (<em>M. martesem> e Faina (<em>M. foinaem>, è elevato (O=0,868. Tuttavia, poiché in condizioni di

  9. Structure and distribution of Hydrachnidia (Parasitengona-Acari in the sub-basin of the Grande River (Superior Basin of Quinto River. San Luis-Argentina Estrutura e distribuição dos Hidracáridos (Parasitengona-Acari na Subcuenca do Rio Grande (Conta Superior do Rio Quinto. San Luis-Argentina

    Directory of Open Access Journals (Sweden)

    Carlos Raul Quiroga

    2010-09-01

    .OBJETIVO: O objetivo deste trabalho foi conhecer a diversidade de gêneros, os atributos estruturais e a distribuição da comunidade de hidracáridos, como assim também a sua possível influência sobre certos parâmetros abióticos, na sub-bacia do Rio Grande, San Luis; MÉTODOS: estabeleceram-se quatro locais de amostragem (C1, E1, E2 e E3 em dois períodos hidrológicos: águas altas (AA e águas baixas (AB. Obtiverem-se 24 amostras com rede Surber e se realizou a caracterização hidráulica, física e química dos locais de amostragem. Calculou-se a densidade (ind.m-2, a riqueza genérica e o índice da diversidade de Shannon-Wiener; RESULTADOS: registraram-se 16 gêneros de hidracáridos. Não houve diferenças significativas entre cada local com relação aos parâmetros abióticos. Observou-se uma correlação positiva entre Sperchon, Torrentícola e Neoatractides com relação ao fluxo e à corrente, ao passo que Hygrobates mostrou uma correlação negativa. Não houve diferenças significativas nas abundâncias absolutas de hidracáridos entre os locais em AA e AB nem entre os pares de cada local em AA e em AB. Os gêneros que apresentaram as maiores densidades foram Hygrobates, Limnesia e Atractides, dos quais os dois primeiros apresentaram-se mais amplamente distribuídos. Os demais gêneros somente apareceram esporádicamente. De acordo com o índice de Kownacki, Hygrobates e Limnesia foram "dominantes", Atractides foi "subdominante", e o resto foi "não-dominante"; CONCLUSÕES: os gêneros encontrados apresentaram-se distantes tanto filogenéticamente quanto sistemáticamente. Porém, os espécimes desses gêneros foram similares morfológicamente, apresentando características adaptativas à habitats teófilos. A representatividade de Hygrobates e Limnesia poderia se dever à grande abundância de seus hospedeiros e presas na sub-bacia. A diminuição na densidade e as mudanças na composição de hidracáridos em E3 (local após barragem poderiam ser

  10. Amor e liberdade em Heidegger

    Directory of Open Access Journals (Sweden)

    Acylene Maria Cabral Ferreira

    2011-06-01

    Full Text Available Nosso objetivo é mostrar, a partir das obras Ser e Tempo e Seminários de Zollikon, a constituição ontológica do amor como a afinação (Stimmung fundamental para a convivência da presença (Dasein. Nossa hipótese sustenta-se no pressuposto que a copertença do amor (abertura fundamental para o outro e da liberdade (deixar-ser o outro consiste em uma modificação do existencial da disposição e expressa a unidade e a circularidade ontológica do ser-no-mundo. Pretendemos mostrar ainda que a solicitude (a abertura do ser-com é a condição de possibilidade para a constituição ontológico-existencial da afinação do amor. Centrados no texto Sobre a essência da verdade, nosso intuito é sublinhar que a liberdade é também uma modificação do existencial da disposição, ou seja, uma afinação, e enquanto tal é o fundamento ontológico para o desvelamento do modo próprio (eigentliche de ser da presença. Nesta perspectiva, podemos afirmar que a afinação da liberdade precede e penetra a afinação do amor. Isto significa que a afinação do amor se funda na afinação da liberdade e que esta ressoa naquela, o que nos permite dizer que elas são co-originárias.The objective of the present paper is to show, using Being and time and Zollikon Seminars, the existential-ontological constitution of love as a mood (Stimmung fundamental to the coexistence of Dasein. The hypothesis advanced here is that the co-pertinence of love (the fundamental disclosedness to the other and of freedom (the letting-be of the other consists in a modification of the existential of state-of-mind and expresses the unity and ontological circularity of Being-in-the-world. We intend also to show that solicitude (the disclosedness towards Being-with is the condition of possibility for the existential-ontological constitution of the mood of love. Centered on the text On the Essence of Truth, our purpose is to emphasize that freedom is also a modification of the

  11. Controle de Rhipicephalus sanguineus (Latreille, 1806 (Acari: Ixodidae no canil da Escola de Veterinária da UFMG, Belo Horizonte, Minas Gerais, Brasil Control of Rhipicephalus sanguineus (Latreille, 1806 (Acari: Ixodidae in the kennel of the UFMG Veterinary School, Belo Horizonte, Minas Gerais, Brazil

    Directory of Open Access Journals (Sweden)

    Gustavo F. Paz

    2008-03-01

    Full Text Available O presente estudo teve como proposta controlar uma infestação natural de Rhipicephalus sanguineus em um canil pertencente à Escola de Veterinária da UFMG, com uma área de 72 m² e 25 cães de diversas raças. Um teste de sensibilidade a produtos acaricidas foi aplicado em uma amostra de carrapatos capturados no canil. Dos produtos testados: Amitraz 12,5% (Produto 1; uma associação de Alfametrina 2% e Dichlorvós 60% (produto 2; Deltametrina 5% (produto 3 e uma associação de Trichlorfon 77,6%, Coumaphós 1% e Cyfluthrin 1% (produto 4; somente os produtos 1 e 4 apresentaram 100% de eficácia. O Amitraz 12,5% foi utilizado no controle dos estádios de R. sanguineus presentes no ambiente do canil, com um esquema de 4 aplicações a cada 7 dias de intervalo. Para os estádios parasitários, um único tratamento com Flumetrina 1.0% pour-on foi empregado em todos os animais. A inspeção e o monitoramento do ambiente e dos animais foram realizados durante um período de um ano. Estas medidas de controle reduziram significativamente a população de carrapatos dentro do canil. O canil não apresentou infestação pelo carrapato nos seis meses seguintes aos tratamentos. Uma infestação leve foi observada no 7º mês pós-tratamento, quando foi realizada uma nova aplicação de Amitraz 12,5% no ambiente do canil e um novo tratamento com Flumetrina 1.0% pour-on nos animais, com resultados satisfatórios.The present work was aimed at proposing a control measure for Rhipicephalus sanguineus in a naturally infected kennel of 72 m² of the UFMG Veterinary School with 25 dogs of different breeds. A sensitivity test to acaricide products was applied in a sample of R. sanguineus. Out of the acaricide products tested: 12.5% Amitraz (product 1; 2% Alfamethrin and 60% Dichlorvos association (product 2; 5% Deltamethrin (product 3 and the association between 77.6% Trichlorfon, 1.0% Coumaphos and 1.0% Cyfluthrin (product 4; only 1 and 4 products showed 100

  12. Avaliação da eficácia de extratos oleosos de frutos verdes e maduros de cinamomo (Melia azedarach sobre Rhipicephalus (Boophilus microplus (Acari: Ixodidae Evaluation of efficacy of ripe and unripe fruit oil extracts of Melia azedarach against Rhipicephalus (Boophilus microplus (Acari: ixodidae

    Directory of Open Access Journals (Sweden)

    Lorena A. Dias de Sousa

    2008-03-01

    Full Text Available Extratos hexânicos obtidos dos frutos de Melia azedarach foram testados sobre fêmeas ingurgitadas e larvas de Rhipicephalus (Boophilus microplus. Foram produzidos quatro extratos: um de frutos verdes e três com frutos maduros, sendo um com os frutos imediatamente processados, outro com frutos armazenados por cinco meses e um testado após armazenamento do extrato por 2 (dois anos a 4ºC. Os testes foram feitos em triplicata, em diluições de 0,25% a 0,0156%. A eficácia dos extratos foi avaliada através da comparação da Reprodução Estimada dos lotes "controle e tratado" para fêmeas, da mortalidade para as larvas, e do cálculo das DL50 e da potência relativa para larvas e fêmeas. O extrato de frutos verdes apresentou uma eficácia variando de 3,6% a 100% para fêmeas, e o de frutos maduros variou de 5,2% a 99,7%. Os dois extratos causaram uma mortalidade de 100% das larvas nas maiores concentrações. O extrato de frutos armazenados apresentou eficácia de 14% a 83% sobre fêmeas, enquanto o extrato armazenado em geladeira apresentou eficácia de 8,4% a 100% e ambos não apresentaram efeito larvicida. Os resultados obtidos demonstram uma superioridade do extrato verde, com uma menor DL50 e potência 1,497 vezes superior ao extrato de frutos maduros.Hexanic extracts gotten of the fruits of cinamomo (Melia azedarach were tested on engourged females and larvae of Rhipicephalus (Boophilus microplus. Four extracts were produced: one of unripe fruits and three of ripe fruits, being one with the fruits immediately processed, another one with fruits stored for five months and one tested after storage of the extract for 2 (two years at 4ºC. The tests were made in triplicate, in 0.25%- 0.0156% dilutions. The effectiveness of extracts was evaluated through the comparison of the Reproduction Estimate of the groups "controlled and treated" for females, of mortality for the larvae, and of the calculation of the DL50 and the relative power for

  13. Life cycle of female ticks of Amblyomma cooperi Nuttal & Warburton, 1908 (Acari: Ixodidae under laboratory conditions Ciclo biológico de fêmeas do carrapato Amblyomma cooperi Nuttal & Warburton, 1908 (Acari:Ixodidae sob condições de laboratório

    Directory of Open Access Journals (Sweden)

    A.T.S. Almeida

    2001-06-01

    Full Text Available The biological cycle of female ticks of Amblyomma cooperi was studied under controlled conditions. The study has begun with two engorged females collected in a naturally infested wild capybara. The larvae originated from the oviposition of these two females were used for collecting young adults through artificial infestations in rabbits. The female parasitic and free living phases were evaluated using artificial infestation of ticks in a capybara. The average body weight of females was 958.2± 175.6mg, the average pre-egg laying period was 8.5± 1.4 days, the reproductive efficiency index was 59.5± 4.2 and the nutritional efficiency index was 77.3± 4.8. The incubation and eclosion periods were 41.9 and 5.9 days, respectively, and the rate of eclosion was 64%. These figures were obtained under high relative humidity conditions which were necessary for the success of the egg incubation process of this species. The preliminary data obtained with the artificial infestation in rabbits raises the possibility of this and other domestic species be used as an epidemiologic link between the domestic and the wild environment with the potential exposure of human populations to A. cooperi and to the maculosa fever agent.O ciclo biológico de Amblyomma cooperi foi estudado sob condições de laboratório. O estudo iniciou-se com duas fêmeas ingurgitadas coletadas de uma capivara selvagem naturalmente infestada. As larvas provenientes da postura foram utilizadas para obtenção de adultos, por meio de infestação artificial em coelhos. As fases parasitária e de vida livre das fêmeas foram avaliadas utilizando-se infestação artificial em capivara. A média de peso corporal foi de 958,2± 175,6mg, a média do período de pré-postura de 8,5± 1,4 dias e dos índices de eficiência reprodutiva e nutricional de 59,5± 4,2 e 77,3± 4,6, respectivamente. Os períodos de incubação e eclosão foram de 41,9 e 5,9 dias, respectivamente. A taxa de eclosão foi

  14. 7 CFR 1945.35 - Special EM loan training.

    Science.gov (United States)

    2010-01-01

    ...) PROGRAM REGULATIONS (CONTINUED) EMERGENCY Disaster Assistance-General § 1945.35 Special EM loan training... workshop and a test. (c) Objective. The basic objective of this training program is to keep State and... employees in administering the EM loan program. (d) Comprehensive EM loan training package. A comprehensive...

  15. Syntheses of Enantiopure Aliphatic Secondary Alcohols and Acetates by Bioresolution with Lipase B from <em>Candida antarcticaem>

    Directory of Open Access Journals (Sweden)

    Richele P. Severino

    2012-07-01

    Full Text Available The lipase B from <em>Candida antarcticaem> (Novozym 435®, CALB efficiently catalyzed the kinetic resolution of some aliphatic secondary alcohols: (±-4-methylpentan-2-ol (1, (±-5-methylhexan-2-ol (3, (±-octan-2-ol (4, (±-heptan-3-ol (5 and (±-oct-1-en-3-ol (6. The lipase showed excellent enantioselectivities in the transesterifications of racemic aliphatic secondary alcohols producing the enantiopure alcohols (>99% <em>ee> and acetates (>99% <em>ee> with good yields. Kinetic resolution of <em>rac>-alcohols was successfully achieved with CALB lipase using simple conditions, vinyl acetate as acylating agent, and hexane as non-polar solvent.

  16. The Complete Mitochondrial Genome of the Pink Stem Borer, <em>Sesamia inferensem>, in Comparison with Four Other Noctuid Moths

    Directory of Open Access Journals (Sweden)

    Yu-Zhou Du

    2012-08-01

    Full Text Available The complete 15,413-bp mitochondrial genome (mitogenome of <em>Sesamia inferensem> (Walker (Lepidoptera: Noctuidae was sequenced and compared with those of four other noctuid moths. All of the mitogenomes analyzed displayed similar characteristics with respect to gene content, genome organization, nucleotide comparison, and codon usages. Twelve-one protein-coding genes (PCGs utilized the standard ATN, but the <em>cox1 em>gene used CGA as the initiation codon; <em>cox1em>, <em>cox2em>, and <em>nad4em> genes had the truncated termination codon T in the <em>S. inferens em>mitogenome. All of the tRNA genes had typical cloverleaf secondary structures except for <em>trnS1(AGNem>, in which the dihydrouridine (DHU arm did not form a stable stem-loop structure. Both the secondary structures of <em>rrnL> and <em>rrnS> genes inferred from the <em>S. inferens em>mitogenome closely resembled those of other noctuid moths. In the A+T-rich region, the conserved motif “ATAGA” followed by a long T-stretch was observed in all noctuid moths, but other specific tandem-repeat elements were more variable. Additionally, the <em>S. inferens em>mitogenome contained a potential stem-loop structure, a duplicated 17-bp repeat element, a decuplicated segment, and a microsatellite “(AT7”, without a poly-A element upstream of the<em> trnM em>in the A+T-rich region. Finally, the phylogenetic relationships were reconstructed based on amino acid sequences of mitochondrial 13 PCGs, which support the traditional morphologically based view of relationships within the Noctuidae.

  17. EMS – Elektron Musik Studion in Stockholm

    DEFF Research Database (Denmark)

    Groth, Sanne Krogh

    2016-01-01

    In 1964 the electronic music studio EMS, Stockholm opened as a conventional analogue studio. The primary intension with the institution was to build the world’s most advanced hybrid studio and to conduct an international research program into sound and sound perception. With financial support from...

  18. O crivo da cultura em Die Ausgesperrten

    Directory of Open Access Journals (Sweden)

    Dionei Mathias

    2015-06-01

    Full Text Available O romance Die Ausgesperrten (‘Os excluídos’, publicado em 1980 pela autora austríaca Elfriede Jelinek, discute a questão do ódio em diferentes estratos sociais e as formas como essa emoção é articulada no contexto social. Assim, o ódio é representado nos primeiros círculos de socialização (na família e na escola, mais tarde surge também em esferas sociais mais complexas. Em todos esses espaços, os personagens se utilizam de discursos diversos para legitimá-lo, evidenciando a labilidade da cultura como barreira discursiva do princípio da violência. Apesar da maleabilidade da cultura no processo de configuração dessa emoção e sua livre exposição, os protagonistas acabam confrontados com um excesso emocional não compreendido, levando um à afasia e outro à destruição da família, com o objetivo de calar o indesejado.

  19. Enrichment and Purification of Syringin, Eleutheroside E and Isofraxidin from <em>Acanthopanax> <em>senticosus> by Macroporous Resin

    Directory of Open Access Journals (Sweden)

    Yuangang Zu

    2012-07-01

    Full Text Available In order to screen a suitable resin for the preparative simultaneous separation and purification of syringin, eleutheroside E and isofraxidin from <em>Acanthopanax> <em>senticosus>, the adsorption and desorption properties of 17 widely used commercial macroporous resins were evaluated. According to our results, HPD100C, which adsorbs by the molecular tiers model, was the best macroporous resin, offering higher adsorption and desorption capacities and higher adsorption speed for syringin, eleutheroside E and isofraxidin than other resins. Dynamic adsorption and desorption tests were carried out to optimize the process parameters. The optimal conditions were as follows: for adsorption, processing volume: 24 BV, flow rate: 2 BV/h; for desorption, ethanol–water solution: 60:40 (v/v, eluent volume: 4 BV, flow rate: 3 BV/h. Under the above conditions, the contents of syringin, eleutheroside E and isofraxidin increased 174-fold, 20-fold and 5-fold and their recoveries were 80.93%, 93.97% and 93.79%, respectively.

  20. Biodiversidade do solo em ecossistemas brasileiros

    NARCIS (Netherlands)

    Moreira, F.M.S.; Siqueira, J.O.; Brussaard, L.

    2008-01-01

    Biodiversidade do Solo em Ecossistemas Brasileiros R,00 O solo é considerado o ecossistema mais complexo e dinâmico do planeta, cuja heterogeneidade de habitats, que varia na escala de nanômetros até quilômetros, abriga enorme biodiversidade que desempenha papel essencial para a continuida¬de dos

  1. O Setor dos Videojogos em Portugal

    NARCIS (Netherlands)

    Santos, Pedro A.; Romeiro, Patricia; Nunes, Flávio

    2018-01-01

    Numa altura em que a indústria portuguesa de videojogos está a ganhar forma acreditamos ser muito importante a realização de estudos de caraterização que promovam o seu autoconhecimento. Este é o primeiro de um desses estudos promovido pela Sociedade Portuguesa de Ciências de Videojogos (SPCV).

  2. Multifunction waveform generator for EM receiver testing

    Science.gov (United States)

    Chen, Kai; Jin, Sheng; Deng, Ming

    2018-01-01

    In many electromagnetic (EM) methods - such as magnetotelluric, spectral-induced polarization (SIP), time-domain-induced polarization (TDIP), and controlled-source audio magnetotelluric (CSAMT) methods - it is important to evaluate and test the EM receivers during their development stage. To assess the performance of the developed EM receivers, controlled synthetic data that simulate the observed signals in different modes are required. In CSAMT and SIP mode testing, the waveform generator should use the GPS time as the reference for repeating schedule. Based on our testing, the frequency range, frequency precision, and time synchronization of the currently available function waveform generators on the market are deficient. This paper presents a multifunction waveform generator with three waveforms: (1) a wideband, low-noise electromagnetic field signal to be used for magnetotelluric, audio-magnetotelluric, and long-period magnetotelluric studies; (2) a repeating frequency sweep square waveform for CSAMT and SIP studies; and (3) a positive-zero-negative-zero signal that contains primary and secondary fields for TDIP studies. In this paper, we provide the principles of the above three waveforms along with a hardware design for the generator. Furthermore, testing of the EM receiver was conducted with the waveform generator, and the results of the experiment were compared with those calculated from the simulation and theory in the frequency band of interest.

  3. Desenvolvimento puberal em meninas tratadas de LLA

    Directory of Open Access Journals (Sweden)

    Monteiro I.M.M.

    1998-01-01

    Full Text Available OBJETIVO: Com o objetivo de avaliar o desenvolvimento puberal após o tratamento de leucemia linfóide aguda (LLA na infância, foi realizado um estudo retrospectivo, em meninas tratadas de janeiro de 1980 a janeiro de 1991, no Centro de Investigações Hematológicas "Dr. Domingos A. Boldrini", em Campinas-SP. CASUÍSTICA E MÉTODO: Foram selecionadas 42 meninas, tratadas antes da puberdade com quimioterapia sistêmica e intratecal e radioterapia cranial, utilizando doses de 18 ou 24 Grays (Gy. RESULTADOS: As idades médias da telarca, pubarca e menarca foram inferiores às do grupo-controle, embora com significância estatística apenas para a idade da telarca. Não houve diferenças entre os grupos tratados com 18 ou 24Gy. As meninas tratadas antes dos cinco anos de idade apresentaram idade média da menarca estatisticamente inferior àquelas tratadas após cinco anos e em relação ao grupo-controle. CONCLUSÃO: Os resultados mostraram que o desenvolvimento puberal em meninas tratadas de LLA na infância foi mais precoce que o de meninas saudáveis.

  4. Supercritical Fluid Extraction of <em>Eucalyptus globulusem> Bark—A Promising Approach for Triterpenoid Production<em>>

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    Carlos M. Silva

    2012-06-01

    Full Text Available Eucalyptus bark contains significant amounts of triterpenoids with demonstrated bioactivity, namely triterpenic acids and their acetyl derivatives (ursolic, betulinic, oleanolic, betulonic, 3-acetylursolic, and 3-acetyloleanolic acids. In this work, the supercritical fluid extraction (SFE of <em>Eucalyptus> <em>globulus> deciduous bark was carried out with pure and modified carbon dioxide to recover this fraction, and the results were compared with those obtained by Soxhlet extraction with dichloromethane. The effects of pressure (100–200 bar, co-solvent (ethanol content (0, 5 and 8% wt, and multistep operation were studied in order to evaluate the applicability of SFE for their selective and efficient production. The individual extraction curves of the main families of compounds were measured, and the extracts analyzed by GC-MS. Results pointed out the influence of pressure and the important role played by the co-solvent. Ethanol can be used with advantage, since its effect is more important than increasing pressure by several tens of bar. At 160 bar and 40 °C, the introduction of 8% (wt of ethanol greatly improves the yield of triterpenoids more than threefold.

  5. Matérias estranhas em canela em pó e páprica em pó, comercializadas no estado de São Paulo

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    CORREIA Marlene

    2000-01-01

    Full Text Available Com objetivos de padronizar metodologias para matérias estranhas em canela em pó e páprica em pó e de avaliar as condições higiênicas desses condimentos, foram adquiridas, no período de agosto a novembro de 1998, 78 amostras de canela em pó e 56 de páprica em pó, em estabelecimentos comerciais de seis cidades do Estado de São Paulo. Foram utilizados métodos da Association of Official Analytical Chemists International (AOAC - 1995, 16.14.12/968.38b para canela em pó e 16.14.22/977.25B para páprica em pó. Os métodos mostraram-se adequados, sem resíduos interferentes no papel de filtro que dificultasse o diagnóstico da análise e viáveis de serem utilizados nos laboratórios de Microscopia de Alimentos. Os resultados obtidos indicaram 100% das amostras contendo fragmentos de insetos; pêlos de roedor foram isolados em 73,1% de amostras de canela em pó e 34,0% de páprica em pó, enquanto ácaros mortos apareceram, respectivamente, em 37,2% e 12,5% de amostras. É necessário revisão da legislação de alimentos em vigor, com o estabelecimento de níveis de tolerância para fragmentos de insetos.

  6. Design of Higher-<em>k> and More Stable Rare Earth Oxides as Gate Dielectrics for Advanced CMOS Devices

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    Yi Zhao

    2012-08-01

    Full Text Available High permittivity (<em>k> gate dielectric films are widely studied to substitute SiO2 as gate oxides to suppress the unacceptable gate leakage current when the traditional SiO2 gate oxide becomes ultrathin. For high-<em>k> gate oxides, several material properties are dominantly important. The first one, undoubtedly, is permittivity. It has been well studied by many groups in terms of how to obtain a higher permittivity for popular high-<em>k> oxides, like HfO2 and La2O3. The second one is crystallization behavior. Although it’s still under the debate whether an amorphous film is definitely better than ploy-crystallized oxide film as a gate oxide upon considering the crystal boundaries induced leakage current, the crystallization behavior should be well understood for a high-<em>k> gate oxide because it could also, to some degree, determine the permittivity of the high-<em>k> oxide. Finally, some high-<em>k> gate oxides, especially rare earth oxides (like La2O3, are not stable in air and very hygroscopic, forming hydroxide. This topic has been well investigated in over the years and significant progresses have been achieved. In this paper, I will intensively review the most recent progresses of the experimental and theoretical studies for preparing higher-<em>k> and more stable, in terms of hygroscopic tolerance and crystallization behavior, Hf- and La-based ternary high-<em>k> gate oxides.

  7. Osservazioni in cattività sul ciclo stagionale del peso corporeo e sull'efficienza digestiva di <em>Pipistrellus kuhliiem> e <em>Hypsugo saviiem> (Chiroptera: Verspertilionidae

    Directory of Open Access Journals (Sweden)

    Gianna Dondini

    2004-06-01

    Full Text Available Abstract Captivity observation on body weight cycle and digestive efficiency in <em>Pipistrellus kuhliiem> and <em>Hypsugo saviiem> (Chiroptera: Vespertilionidae Many bat species of cold-temperate climate are subject to seasonal variation of temperature and food availability. Fat reserve during summer-autumn is therefore a physiological adaptation to spend the winter months by hibernating or to sustain migration. During a research on bats in urban areas, two juveniles of Kuhl's bat (<em>Pipistrellus kuhliiem>, 2 females and two juveniles of Savi's bat (<em>Hypsugo saviiem>, 1 male and 1 female were collected in 1997 in the urban area of Florence (central Italy. Bats were kept in a cage of 50x40x30 cm with a temperature between 17° and 22° C. Every day they were weighted with an electronic balance before eating mealworms (<em>Tenebrio molitorem>. Digestive efficiency, calculated on dry material, was about 90% for both species. In about six months <em>P. kuhliiem> and <em>H. saviiem> increased on the average of 450% and 280% in weight respectively. Deposition of fat reserve seemed to be faster in <em>P. kuhliiem> than in <em>H. saviiem>. Both species showed a circannual cycle in the variation of weight. Riassunto Molte specie di pipistrelli dei climi temperato-freddi sono soggette a marcate variazioni stagionali di temperatura e disponibilità di cibo. L'accumulo di grasso in tarda estate-autunno è quindi un adattamento fisiologico per trascorrere in ibernazione i mesi invernali o per intraprendere la migrazione. Nell'ambito di una ricerca pluriennale sui pipistrelli in ambienti urbani, 4 esemplari giovani, di cui 2 di Pipistrello albolimbato (<em>Pipistrellus kuhliiem>, 2 femmine e due di Pipistrello di Savi (<em>Hypsugo saviiem>, 1 maschio e 1 femmina, sono stati raccolti nella pianura di Firenze durante l'estate del 1997 e mantenuti in un contenitore di 50x40x30 cm ad

  8. Determinação de hemogregarina em Boa constrictor constrictor mantidos em cativeiro

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    Monique A. Luz

    2012-08-01

    Full Text Available O presente estudo teve como objetivo determinar a presença de hemogregarina em boídeos mantidos em cativeiro no Estado do Pará, bem como, relacionar a hemoparasitose com pre-disposição sexual, alterações clínicas e hematológicas e a presença de ectoparasitos. Esta pesquisa teve autorização do Sistema de Autorização e Informação em Biodiversidade do Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis para ser realizado. Utilizaram-se 19 serpentes da família Boidae mantidas em cativeiro, pertencentes ao "Museu Paraense Emilio Goeldi" (Belém/PA e "Sítio Xerimbabo" (Santo Antônio do Tauá/PA. A pesquisa de hemogregarina foi realizada em esfregaços sanguíneos examinados no aumento de 400x, enquanto que a parasitemia foi determinada contando- se 550 hemácias em aumento de 1000x. Do total de animais estudados (n=19, nove encontraram-se parasitados (47,36%, não havendo correlação entre presença de hemogregarina, pré-disposição sexual, alterações clínicas e hematológicas nas serpentes hospedeiras. A correlação da hemoparasitose foi detectada apenas quanto à presença de ectoparasitas nas serpentes, no entanto, estudos adicionais são necessários para verificar a prevalência de hemogregarinas em animais mantidos em cativeiro no Estado do Pará, visto que, existe grande lacuna de dados na literatura veterinária especializada no que diz respeito à fauna da região amazônica.

  9. Babesiose cerebral em bovinos: 20 casos

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    Rodrigues Aline

    2005-01-01

    Full Text Available Num estudo retrospectivo de 1.071 necropsias de bovinos, foram encontrados 20 casos de babesiose cerebral confirmados pelo exame de esfregaços do córtex telencefálico. A maioria desses casos ocorreu no verão, em bovinos adultos de raças européias ou suas cruzas. Além dos sinais clínicos neurológicos, observou-se hemoglobinúria, anorexia, febre, taquicardia, taquipnéia e queda na produção de leite. O hemograma realizado em cinco bovinos afetados revelou acentuada anemia regenerativa; em média, 20% dos eritrócitos estavam parasitados por Babesia bovis. Na necropsia de todos os casos, a substância cinzenta dos córtices telencefálico e cerebelar e dos núcleos da base era consistente e caracteristicamente róseo-cereja. Essa coloração devia-se ao seqüestro de eritrócitos nos capilares encefálicos. Nesses eritrócitos, podiam-se observar, tanto em esfregaços do córtex como em preparações histológicas do encéfalo, microorganismos com morfologia compatível com B. bovis. Outros achados de necropsia incluíam hemoglobinúria, rins vermelho-escuros, hepatoesplenomegalia, fígado vermelho-alaranjado, icterícia, hemorragias epicárdicas e endocárdicas e edema e congestão dos linfonodos mesentéricos.

  10. Regional EM studies in the 80's

    Science.gov (United States)

    Hjelt, S. E.

    1987-09-01

    The review describes in broad terms the development of regional EM studies during the last five-six years. Large simultaneous magnetometer arrays, broadband and dense profiling with five component instruments, the use of remote reference techniques and in-field data processing have increased both the number and the quality of EM surveys. The increase has been strong all over the world. An extensive list of references, divided geographically, is presented. Selected examples of regional resisitivity-versus-depth curves are shown for Africa, the Baikal region, the Baltic Shield, the Canadian Shield, the Carpathian regions, the Central Andes, Iceland, India, the Juan de Fuca Plate, the Münsterland Basin, the Rio Grande rift, the Scottish Caledonides, the Tasman Sea, and for the United States in general. Because of the influence of tectonic settings and the metamorphic grade of rocks, only qualitative aspects of the results are relevant. ‘Classical’ array studies, especially in Australia, in the Carpathian regions, in India, in North Germany and in Scotland have been reinterpreted and completed with more accurate 2D modelling and dense MT profiling. In the USA and Canada also new regions have been surveyed extensively. New regional EM work has been conducted extensively on the Baltic Shield and in Central and North Africa, Siberia, China, in the areas around the Caspian and Black Seas and in South America. The newest studies are supported by or compared with other geophysical data, which also are used in extrapolating for missing EM data density. There are several successful large-scale projects in operation: the European Geotraverse (EGT), the KAPG International Geotraverses and the EMSLAB project (with its first preliminary results). Regional EM studies have been increasingly applied to geothermal, hydrocarbon and mineral prospecting as well as local structural studies, e.g. studies of sites for nuclear waste disposal.

  11. A new karyotype of <em>Calomyscus> from the Khorasan Province, Iran

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    Esmaeeli Somayeh

    2008-07-01

    Full Text Available Abstract We report a new karyotype of <em>Calomyscus> from two localities of the Khorasan Province (Aghdarband, 36° 11’ 3”N, 60° 44’ 6” E and Khajemorad, 36° 8’ 5” N, 59° 41’ 58” E. Chromosomes were examined by conventional staining and C-banding techniques. The diploid chromosome number (2n and the fundamental autosomal arm number (FNa were 44 and 60 respectively. The autosomal set consisted of 12 pairs of telocentrics, 5 pairs of acrocentrics and 4 pairs of sub-metacentrics. Both heterosomes were small telocentrics. Riassunto Un nuovo cariotipo del genere <em>Calomyscus> dalla provincia di Khorasan, Iran. Si descrive un nuovo cariotipo appartenente al genere <em>Calomyscus>, scoperto in due località della provincia di Khorasan (Aghdarband, 36° 11’ 3”N, 60° 44’ 6” E e Khajemorad, 36° 8’ 5” N, 59° 41’ 58” E. I cromosomi sono stati analizzati con le tecniche standard di colorazione e bandeggio. Il numero diploide di cromosomi (2n e il numero fondamentale di bracci autosomici sono risultati pari a 44 e 60 rispettivamente. Il set di cromosomi autosomici è composto da 12 paia di telocentrici, 5 di acrocentrici e 4 di sub-metacentrici. Entrambi i cromosomi sessuali si presentano come piccoli telocentrici.

  12. Acetylcholinesterase-Inhibiting Activity of Salicylanilide <em>N>-Alkylcarbamates and Their Molecular Docking

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    Josef Jampilek

    2012-08-01

    Full Text Available A series of twenty-five novel salicylanilide <em>N>-alkylcarbamates were investigated as potential acetylcholinesterase inhibitors. The compounds were tested for their ability to inhibit acetylcholinesterase (AChE from electric eel (<em>Electrophorus electricusem> L.. Experimental lipophilicity was determined, and the structure-activity relationships are discussed. The mode of binding in the active site of AChE was investigated by molecular docking. All the discussed compounds expressed significantly higher AChE inhibitory activity than rivastigmine and slightly lower than galanthamine. Disubstitution by chlorine in C'(3,4 of the aniline ring and the optimal length of hexyl-undecyl alkyl chains in the carbamate moiety provided the most active AChE inhibitors. Monochlorination in C'(4 exhibited slightly more effective AChE inhibitors than in C'(3. Generally it can be stated that compounds with higher lipophilicity showed higher inhibition, and the activity of the compounds is strongly dependent on the length of the <em>N>-alkyl chain.

  13. Uso de digital em idosos admitidos em unidade de geriatria de um hospital geral

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    Cunha Ulisses Gabriel de Vasconcelos

    1998-01-01

    Full Text Available OBJETVO: Detectar a freqüência da prescrição do digital, assim como as suas indicações, em idosos admitidos em unidade de geriatria de um hospital geral. MÉTODOS: Foram investigados, consecutivamente, 130 pacientes não selecionados, de ambos os sexos (100 mulheres e 30 homens, com idades > ou = 65 (média 80±9 anos. Os pacientes foram avaliados através de exame clínico completo, rotina básica de sangue, radiografia simples de tórax, eletrocardiograma e ecocardiograma Doppler. Baseados na avaliação clínica e exames complementares, o uso do digital foi considerado adequado, questionável ou inadequado. RESULTADOS: Estavam em uso de digital 27,6% dos pacientes. A indicação foi considerada adequada em 36,1%, questionável em 11,1% e inadequada em 52,7%. CONCLUSÃO: Uma alta prevalência de prescrição do digital foi detectada nos idosos admitidos, sendo que a maior parte a adotava por razões consideradas inadequadas ou questionáveis. Devido ao risco aumentado de intoxicação digitálica nessa faixa etária, a droga deveria ser prescrita sob indicações mais criteriosas.

  14. Locas al Rescate: The Transnational Hauntings of Queer <em>Cubanidad>

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    Lázaro Lima

    2011-12-01

    Full Text Available

    “Locas al Rescate: The Transnational Hauntings of Queer <em>Cubanidad>” (originally published in <em>Cuba Transnationalem> offers a significant contribution both to transnational American Studies and to gender studies. In telling the insider story of the alternative identity formation, practices, and forms of “rescue” initiated by the affective activism of the Cuban American society in drag in 1990s Miami/South Beach, Lima resuscitates the liberatory gestures of a subculture defined by its pursuit of its own acceptance, value, and freedom. With their aesthetic and political life on a raft, the gay micro-communities inside Cuban America asserted their own islandic space, Lima observes, performing “takeovers” in and of parks and bars and beaches—creating a post-Habermasian sphere of public activism focused on private parts, saving themselves from AIDS, from the disaffection and disaffiliation of the right-wing Cuban immigrant community, and from the failure of their own yearning to belong, to be wanted, to be embodied as the figure of their compelling <em>Cubanidad>. Against the hegemony of the invented collective politics of the sacrificing immigrants whose recognition of the queer side of being (of a being constituted by identity loss is yet to come, Lima suggests a spectral return—a personal and transnational reckoning of those whose lives the dream of freedom drowned.

  15. Associativismo negro em terras sulinas: das irmandades aos clubes para negros em Pelotas (1820-1943

    Directory of Open Access Journals (Sweden)

    Fernanda Oliveira da Silva

    2011-12-01

    Full Text Available O artigo analisa as associações negras pelotenses que permitiram a constituição de uma identidade negra positiva percebida em relação direta com o contexto relacional vivenciado em âmbito nacional e internacional. Destacamos ainda a busca por um entrelaçamento entre diferentes associações tendo como ponto em comum a identificação racial mediada pela busca por uma posição social diferenciada. Diretamente vinculado ao período do pós-Abolição almejava-se a cidadania em uma sociedade ainda muito preconceituosa racialmente. A delimitação espacial focaliza o estudo na cidade de Pelotas, localizada no extremo sul do Rio Grande do Sul, entre os anos de 1820 a 1943. Tem inicio com a criação da primeira irmandade negra em 1820. Dentre as associações destacamos o surgimento dos clubes sociais negros (1917-1931 e suas atividades em conjunto, com ênfase para o surgimento da Frente Negra Pelotense (1933 e a busca por uma identidade racial que fosse comungada por todo o grupo negro local.

  16. Isolamento de micobactérias em Felis concolor em cativeiro

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    María Julia Traversa

    2009-02-01

    Full Text Available Este trabalho foi realizado em uma reserva natural da Argentina com antecedentes de tuberculose em uma suçuarana adulta. O objetivo foi identificar por meio de técnicas bacteriológicas e de biologia molecular as espécies isoladas da orofaringe de cinco suçuaranas que apresentavam sinais clínicos inespecíficos. As amostras foram colhidas das suçuaranas após sedação. Posteriormente foram processadas para obtenção do isolamento e identificação por meio de provas bioquímicas do gênero Mycobacterium pela técnica de PCR. Investigou-se a presença das seqüências de inserção IS6110 e IS1081 e hsp65. Obtiveram-se resultados positivos à coloração de Ziehl-Neelsen de quatro amostras, isolando cinco cepas de crescimento lento. As cepas foram classificadas como M. gordonae em dois casos e M. simiae, M scrofulaceum e M. avium/intracellulare em um. Por PRA, identificou-se o padrão de M. gordonae em três cepas e M. avium III ou M. simiae em dois.

  17. Saúde em retrospectiva e prospectivas

    Directory of Open Access Journals (Sweden)

    Paula Borges Jacques

    2017-12-01

    Full Text Available Nesse ano que ora está findando, a Saúde mundial enfrentou inúmeros desafios. Houve desastres sísmicos, furacões, vulcões em erupção, ataques terroristas, guerras e, como consequência, refugiados em situação de risco em vários países(1. (Reemergiram doenças que poderiam estar controladas(2,3, como tuberculose, sífilis, AIDS, hipertensão, diabetes, hepatites, ebola, cólera, desnutrição grave, dengue, zica, entre outras. Além disso, surgiram síndromes e doenças que desafiam diagnósticos(3 enquanto diversos hospitais públicos agonizavam em diversos pontos do Brasil(4. Por outro lado, verificaram-se relatos de êxitos sucessivos no controle, tratamentos, desenvolvimento de vacinas, cirurgias e aparatos para erradicação de doenças, como a poliomielite nas Américas, que alegram e motivam a Saúde em todo o planeta(5. Nunca houve, como atualmente, tanta veiculação de ajuda humanitária e de solidariedade em notícias televisivas e nas redes sociais. Nobres trabalhadores da Saúde empenhados em, mais do que salvar vidas, resgatar refugiados, trazer esperança e alento a quem sofreu grandes perdas materiais e familiares(6. Se as redes sociais e a globalização expõem o fragilizado, também são capazes de encabeçar campanhas e salvarem, seja um bebê que precisa de um medicamento (Spiraza® não disponível no Brasil e que custa um milhão de reais para seu tratamento contra a Atrofia Muscular Espinhal (AME(7, sejam milhares de refugiados que deixam seus países em botes praticamente suicidas resgatados pelo Mar Mediterrâneo(8. A Revista Brasileira em Promoção da Saúde (RBPS acredita no desenvolvimento da Promoção da Saúde pelo mundo, e se emociona com cada pequena ou grande boa notícia de auxílio ou ajuda a quem está precisando. Nesse ano, estimou-se mais de 500 milhões de pessoas vivendo em área de risco para zica, dengue e chicungunha em dados de março para as Américas(9. Em estados do Nordeste do Brasil

  18. <em>Botulinum Neurotoxinem> A Injections Influence Stretching of the Gastrocnemius Muscle-Tendon Unit in an Animal Model

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    Christopher J. Tuohy

    2012-08-01

    Full Text Available <em>Botulinum Neurotoxinem> A (BoNT-A injections have been used for the treatment of muscle contractures and spasticity. This study assessed the influence of (BoNT-A injections on passive biomechanical properties of the muscle-tendon unit. Mouse gastrocnemius muscle (GC was injected with BoNT-A (<em>n> = 18 or normal saline (<em>n> = 18 and passive, non-destructive, <em>in vivoem> load relaxation experimentation was performed to examine how the muscle-tendon unit behaves after chemical denervation with BoNT-A. Injection of BoNT-A impaired passive muscle recovery (15% <em>vs.> 35% recovery to pre-stretching baseline, <em>p> < 0.05 and decreased GC stiffness (0.531 ± 0.061 N/mm <em>vs.> 0.780 ± 0.037 N/mm, <em>p> < 0.05 compared to saline controls. The successful use of BoNT-A injections as an adjunct to physical therapy may be in part attributed to the disruption of the stretch reflex; thereby modulating <em>in vivoem> passive muscle properties. However, it is also possible that BoNT-A injection may alter the structure of skeletal muscle; thus modulating the <em>in vivoem> passive biomechanical properties of the muscle-tendon unit.

  19. Psicomotricidade e Relaxação em Psiquiatria

    OpenAIRE

    Maximiano, J

    2004-01-01

    A autora pretende com este artigo apresentar os contributos terapêuticos da Psicomotricidade e relaxação em contexto de saúde mental, fazendo apenas abordagem à intervenção com adultos. Uma breve descrição do corpo como unidade biopsicossocial, encontra-se em jeito de introdução, passando em seguida à exposição do conceito e modelos de intervenção em Psicomotricidade Clínica. Aborda em sequência o valor (psico) terapêutico da relaxação, enunciando alguns exemplos de técnicas utilizadas ...

  20. Processos construtivos de pontes de alvenaria em arco

    OpenAIRE

    Santos, Pedro Miguel Coelho Almeida

    2008-01-01

    As pontes de alvenaria em arco são um testemunho de excelência em engenharia, concepção, método construtivo e carácter estético. Existem inúmeras pontes com esta tipologia, construídas em séculos anteriores, que actualmente desempenham as suas funções adequadamente. Devido ao surgimento de novos materiais, dificuldades na produção de blocos de pedra e na construção em arco, esta solução estrutural foi caindo em declínio. Presentemente urge reabilitar vias e suas passagens, é...

  1. Navigating 3D electron microscopy maps with EM-SURFER.

    Science.gov (United States)

    Esquivel-Rodríguez, Juan; Xiong, Yi; Han, Xusi; Guang, Shuomeng; Christoffer, Charles; Kihara, Daisuke

    2015-05-30

    The Electron Microscopy DataBank (EMDB) is growing rapidly, accumulating biological structural data obtained mainly by electron microscopy and tomography, which are emerging techniques for determining large biomolecular complex and subcellular structures. Together with the Protein Data Bank (PDB), EMDB is becoming a fundamental resource of the tertiary structures of biological macromolecules. To take full advantage of this indispensable resource, the ability to search the database by structural similarity is essential. However, unlike high-resolution structures stored in PDB, methods for comparing low-resolution electron microscopy (EM) density maps in EMDB are not well established. We developed a computational method for efficiently searching low-resolution EM maps. The method uses a compact fingerprint representation of EM maps based on the 3D Zernike descriptor, which is derived from a mathematical series expansion for EM maps that are considered as 3D functions. The method is implemented in a web server named EM-SURFER, which allows users to search against the entire EMDB in real-time. EM-SURFER compares the global shapes of EM maps. Examples of search results from different types of query structures are discussed. We developed EM-SURFER, which retrieves structurally relevant matches for query EM maps from EMDB within seconds. The unique capability of EM-SURFER to detect 3D shape similarity of low-resolution EM maps should prove invaluable in structural biology.

  2. Sorteio de domicílios em favelas em inquéritos por amostragem

    Directory of Open Access Journals (Sweden)

    Maria Cecilia Goi Porto Alves

    2011-12-01

    Full Text Available OBJETIVO: Identificar vantagens e desvantagens do uso de segmentos em relação ao sorteio feito a partir da lista completa de endereços, para o sorteio de domicílios em amostragem por conglomerados em múltiplos estágios em favelas. PROCEDIMENTOS METODOLÓGICOS: Estudo qualitativo realizado em quatro favelas sorteadas no Inquérito de Saúde do Município de São Paulo, SP, 2008, nas quais foram aplicadas as duas técnicas. Foram realizados grupos focais com pesquisadores de campo - "arroladores" e entrevistadores do inquérito. Os conteúdos das conversações foram analisados, agrupados em categorias e organizados em núcleos temáticos. ANÁLISE DOS RESULTADOS: A utilização de segmentos de domicílios foi associada a numerosas vantagens e poucas desvantagens. Entre as vantagens, constaram a rapidez e facilidade na elaboração do cadastro de endereços e na localização e identificação de domicílios na etapa de realização das entrevistas, maior segurança dos entrevistadores e da população, maior acesso aos entrevistados, maior estabilidade e maior cobertura do cadastro produzido, e menor ocorrência de erros na identificação dos domicílios sorteados. CONCLUSÕES: A construção de cadastro de domicílios por meio da criação de segmentos é vantajosa em relação à listagem completa de endereços, quando feita em favelas. Por ter se mostrado uma opção econômica e fácil de ser aplicada, constitui alternativa para a simplificação do processo de amostragem em áreas com as suas características de desorganização e adensamento de domicílios.

  3. Estudos sobre a Esquistosomose em Pernambuco, Brasil

    Directory of Open Access Journals (Sweden)

    Aggeu Magalhães

    1940-01-01

    Full Text Available Os autores referem os resultados dos estudos sobre esquistosomose realisados, em Pernambuco, de Novembro de 1938 a Dezembro de 1939. Não se extendem em discussão, nem comentarios, tampouco, relacionam suas verificações com o que já foi relatado sobre o assunto em trabalhos nacionais e estrangeiros, pelo fato de que, não se trata de um resultado definitivo e sim de atividades que irão proseguir. Os estudos sistematicos em torno da endemia esquistosomica foram executados em duas localidades diversas pela população e pela situação geografica e ecologica. Pontezinha é uma povoação de 1200 habitantes localizada proximo a um conjunto de charcos e lagõas de agua dôce onde pululam caramujos do tipo olivaceus de Spix, e apresenta uma taxa de infestação de 21,4% para individuos do sexo masculino, e de 14,7% para os do sexo feminino. A distribuição por grupos de idade mostra que a incidencia cresce até o grupo de 16 a 20 anos de idade, quando atinge a percentagem de 37,8%, para decrescer em seguida. Em Vitoria a incidencia foi maior nos indivíduos do sexo feminino, atingindo a taxa de 41,4%, dando o sexo masculino a taxa de 36,9%. Por idade a percentagem maxima é atingida pelo grupo de 11 a 15 anos. Vitoria é uma cidade de 1500 habitantes, construida á margem do rio Tapacurá, onde se encontram numerosos caramujos do tipo centimetralis Lutz. A divergencia de incidencia corre por conta dos habitos da população e pela utilização que ela faz do rio, sendo maior em Vitoria porque a proximidade do rio facilita o uso de suas aguas para banho e serviços domesticos, condicionando este ultimo fato, a maior infestação das mulheres. O estudo da frequencia da infestação dos caramujos por cercarias de diversos trematodios, permite suspeitar uma relação inversa entre a taxa de infestação e o diametro maximo atingido pelos caramujos, parecendo este fato confirmar os trabalhos de Vianna Martins sobre a identidade dos hospedeiros

  4. Estratégias de marketing no fitness: estudo de caso da Vivafit em Portugal e em Singapura

    OpenAIRE

    Silva, Sara Durão da

    2012-01-01

    Mestrado em Gestão do Desporto - Organizações Desportivas Este estudo pretende aferir as diferenças na elaboração das estratégias de marketing de uma empresa da área do fitness, actuante em diferentes países (nomeadamente em países emergentes) ao nível dos Quatro Pilares do Marketing (4 P.): a) produto, b) promoção, c) local, d) preço. Esta pesquisa é num estudo de caso de uma empresa nacional: a Vivafit, comparandose as estratégias utilizadas em Portugal e em Singapura. For...

  5. Prolapso vaginal e uterino em ovelhas

    Directory of Open Access Journals (Sweden)

    Maíra Bianchi R. Alves

    2013-02-01

    Full Text Available O presente trabalho objetivou realizar um estudo retrospectivo sobre os prolapsos vaginal e uterino em ovelhas atendidas no Serviço de Clínica de Bovinos e Pequenos Ruminantes (CBPR da FMVZ/USP no período compreendido entre 2000 a 2010, no qual, foram atendidas 56 ovinos com problemas inerentes ao sistema reprodutivo, dessas, 25 apresentaram prolapso vaginal ou uterino (44,6%. O prolapso vaginal total foi o de maior frequência (72%. As ovelhas acometidas, em sua maioria, possuíam idade superior a quatro anos (64%, eram sem raça definida (44% ou da raça Ile de France (40%. As manifestações clínicas observadas durante a maioria dos atendimentos foram: taquipnéia, taquicardia, mucosas oculares avermelhadas indicando estado de toxemia, decúbito esternal ou lateral, apatia e anorexia. O tratamento instituído para todos os casos foi a limpeza, desinfecção e reintrodução do órgão prolapsado. A sutura de Bühner foi feita em 84% dos casos e a histeropexia em um caso (4%. A evolução foi satisfatória em 80% dos casos atendidos, nos demais casos (20% observou-se óbito da fêmea acometida. Do total de óbitos, os prolapsos vaginais foram responsáveis por 60% (3/5 e os prolapsos uterinos por 40% (2/5. A etiologia dos prolapsos não foi definida nos casos atendidos, sendo esses associados com o período pós-parto em sua maioria (56%, provavelmente associados com quadros de hipocalcemia, altas concentrações séricas de estrógeno e hipertonia uterina. Além disso, a predisposição genética não pode ser descartada.

  6. Salmonella Enteritidis em Aves: Retrospectiva no Brasil

    Directory of Open Access Journals (Sweden)

    Silva EN

    2002-01-01

    Full Text Available Salmonella Enteritidis (SE emergiu como um grande problema avícola e de saúde pública no Brasil a partir de 1993. Os estudos epidemiológicos, incluindo a fagotipagem e sonda complementar de rRNA, sugerem a entrada de SE no Brasil via importação de material genético avícola contaminado, provavelmente no final da década de 80. As taxas de crescimento da avicultura brasileira na década de 90 criaram condições favoráveis para a manutenção e proliferação da SE nos plantéis avícolas. Além disso, o uso indiscriminado de antibióticos em aves, particularmente as quinolonas, encorajou a manutenção de lotes positivos para SE. As cepas de SE isoladas de aves têm mostrado alta sensibilidade aos antibióticos de uso comum em avicultura, incluindo as quinolonas. Entretanto, o aumento da resistência antimicrobiana e multirresistência tem sido observado em cepas de origem humana. Os últimos levantamentos realizados no ano de 2001 continuam a mostrar que a SE em materiais avícolas é o principal sorovar responsável pelas infecções humanas. Embora as carcaças de frangos apresentem altas taxas de contaminação por SE, são os ovos e seus derivados - principalmente a maionese caseira - os principais responsáveis pelos surtos humanos. O uso de vacinas específicas em poedeiras e reprodutoras tem se mostrado uma ferramenta auxiliar no controle de SE. O procedimento mais indicado para o controle de SE na avicultura está na aquisição e produção de lotes livres do agente. As rações e matérias primas de origem animal parecem não ser tão importantes na perpetuação do problema de SE, porém, os roedores parecem ser reservatórios ambientais importantes de SE em granjas contaminadas.

  7. Biología y ciclo reproductivo de <em>Apanteles gelechiidivorisem> (Hymenoptera: Braconidae, parasitoide de <em>Tuta absolutaem> (Lepidoptera: Gelechiidae

    Directory of Open Access Journals (Sweden)

    Bajonero Johanna

    2008-12-01

    Full Text Available

    <em>Apanteles gelechiidivorisem> es un parasitoide de larvas de <em>Tuta absolutaem> (Lepidoptera: Gelechiidae, una plaga importante de cultivos como el tomate y la papa. El uso de este insecto para el control biológico no se ha implementado eficientemente debido a la falta de conocimiento de la biología, específicamente del ciclo de vida y el efecto de factores externos, como la temperatura, en su capacidad parasítica. Se evaluó el desarrollo y la capacidad reproductiva de <em>A. gelechiidivorisem> en cuatro condiciones térmicas: 14, 20, 26 y 32 °C. En la evaluación del desarrollo se realizó una descripción del ciclo, se determinó la duración total de este, se estimaron los umbrales térmicos para cada estadio utilizando el modelo de Lactin y se hallaron los grados día. En la evaluación de la capacidad reproductiva se variaron las densidades del hospedero ofrecidas a una pareja recién emergida de la avispa de 5 hasta 160 y se contó el número de adultos emergidos con los cuales se evaluó longevidad y fecundidad. Adicionalmente se ajustó un modelo de respuesta funcional. La duración del ciclo de vida para las temperaturas evaluadas fue de 39 días en 14 °C, 34 en 20 °C, 19 en 26 °C y 17 en 32 °C. La longevidad fue de 7,5 (14 °C, 7 (20 °C, 5 (26 °C y 2,4 (32 °C días. La temperatura a la cual se pueden optimizar los parámetros reproductivos de esta avispa se encuentra entre 20 y 26 °C.

  8. The association between EMS workplace safety culture and safety outcomes.

    Science.gov (United States)

    Weaver, Matthew D; Wang, Henry E; Fairbanks, Rollin J; Patterson, Daniel

    2012-01-01

    Prior studies have highlighted wide variation in emergency medical services (EMS) workplace safety culture across agencies. To determine the association between EMS workplace safety culture scores and patient or provider safety outcomes. We administered a cross-sectional survey to EMS workers affiliated with a convenience sample of agencies. We recruited these agencies from a national EMS management organization. We used the EMS Safety Attitudes Questionnaire (EMS-SAQ) to measure workplace safety culture and the EMS Safety Inventory (EMS-SI), a tool developed to capture self-reported safety outcomes from EMS workers. The EMS-SAQ provides reliable and valid measures of six domains: safety climate, teamwork climate, perceptions of management, working conditions, stress recognition, and job satisfaction. A panel of medical directors, emergency medical technicians and paramedics, and occupational epidemiologists developed the EMS-SI to measure self-reported injury, medical errors and adverse events, and safety-compromising behaviors. We used hierarchical linear models to evaluate the association between EMS-SAQ scores and EMS-SI safety outcome measures. Sixteen percent of all respondents reported experiencing an injury in the past three months, four of every 10 respondents reported an error or adverse event (AE), and 89% reported safety-compromising behaviors. Respondents reporting injury scored lower on five of the six domains of safety culture. Respondents reporting an error or AE scored lower for four of the six domains, while respondents reporting safety-compromising behavior had lower safety culture scores for five of the six domains. Individual EMS worker perceptions of workplace safety culture are associated with composite measures of patient and provider safety outcomes. This study is preliminary evidence of the association between safety culture and patient or provider safety outcomes.

  9. A infância em Piaget e o infantil em Freud: temporalidades e moralidades em questão

    Directory of Open Access Journals (Sweden)

    Maria Regina Maciel

    Full Text Available Resumo O presente artigo propõe uma abordagem comparativa entre as noções de infância em Jean Piaget e de infantil em Sigmund Freud, tomando como conceitos básicos a noção de tempo e de moral em ambos os autores. Sustenta-se ser possível afirmar, a partir de uma leitura da epistemologia genética, que a infância vai-se transformando à medida que agimos e conhecemos de acordo com estruturas cognitivas operatórias. No entanto, segundo a psicanálise, é possível nos remeter ao infantil, presente também na vida adulta. O infantil escapa à racionalidade que subjaz àquela noção de estrutura piagetiana. A permanência do infantil é fonte das experiências criativas e da instauração de um movimento permanente de subjetivação.

  10. Ultraviolet and green parts of the colour spectrum affect egg rejection in the song thrush (Turdus philomelos)

    Czech Academy of Sciences Publication Activity Database

    Honza, Marcel; Polačiková, Lenka; Procházka, Petr

    2007-01-01

    Roč. 92, č. 2 (2007), s. 269-276 ISSN 0024-4066 R&D Projects: GA AV ČR IAA600930605; GA MŠk LC06073 Institutional research plan: CEZ:AV0Z60930519 Keywords : brood parasitism * cuckoo * egg appearance * evolution of mimicry * reflectance Subject RIV: EG - Zoology Impact factor: 2.368, year: 2007

  11. Does light pollution alter daylength? A test using light loggers on free-ranging European blackbirds (Turdus merula).

    Science.gov (United States)

    Dominoni, Davide M; Partecke, Jesko

    2015-05-05

    Artificial light at night is one of the most apparent environmental changes accompanying anthropogenic habitat change. The global increase in light pollution poses new challenges to wild species, but we still have limited understanding of the temporal and spatial pattern of exposure to light at night. In particular, it has been suggested by several studies that animals exposed to light pollution, such as songbirds, perceive a longer daylength compared with conspecifics living in natural darker areas, but direct tests of such a hypothesis are still lacking. Here, we use a combination of light loggers deployed on individual European blackbirds, as well as automated radio-telemetry, to examine whether urban birds are exposed to a longer daylength than forest counterparts. We first used activity data from forest birds to determine the level of light intensity which defines the onset and offset of daily activity in rural areas. We then used this value as threshold to calculate the subjective perceived daylength of both forest and urban blackbirds. In March, when reproductive growth occurs, urban birds were exposed on average to a 49-min longer subjective perceived daylength than forest ones, which corresponds to a 19-day difference in photoperiod at this time of the year. In the field, urban blackbirds reached reproductive maturity 19 day earlier than rural birds, suggesting that light pollution could be responsible of most of the variation in reproductive timing found between urban and rural dwellers. We conclude that light at night is the most relevant change in ambient light affecting biological rhythms in avian urban-dwellers, most likely via a modification of the perceived photoperiod. © 2015 The Author(s) Published by the Royal Society. All rights reserved.

  12. Sinularones A–I, New Cyclopentenone and Butenolide Derivatives from a Marine Soft Coral <em>Sinularia> sp. and Their Antifouling Activity

    Directory of Open Access Journals (Sweden)

    Leen van Ofwegen

    2012-06-01

    Full Text Available Nine new compounds, namely sinularones A–I (19, characterized as cyclopentenone and butenolide-type analogues, were isolated from a soft coral <em>Sinularia> sp., together with a known butenolide (10. Their structures were elucidated by means of spectroscopic (IR, MS, 1D and 2D NMR, CD analysis. The absolute configurations were determined on the basis of CD and specific rotation data in association with the computed electronic circular dichroism (ECD by time dependent density functional theory (TD DFT at 6-31+G(<em>d,p>//DFT B3LYP/6-31+G(<em>d,p> level. Compounds 12 and 710 showed potent antifouling activities against the barnacle <em>Balanus amphitriteem>.

  13. Depoimento em 'primeira pessoa do singular' : descaminhos

    Directory of Open Access Journals (Sweden)

    Cristina Altman

    2002-01-01

    Lingüística. Havia apenas um professor muito bom, muito famoso, Francisco Ribeiro Sampaio, bom gramático, bom filólogo. Foi professor da Cláudia Lemos também, e de muitos outros que depois seguiram a carreira acadêmica. Não publicou nada de importante, e praticava conosco em aula uma análise técnico-gramatical, geralmente sobre os textos de Camões. Talvez falasse alguma coisa sobre lingüística, mas era a `Lingüística Comparativa' de Meillet, Bally, dos que se formaram em torno de Saussure ou o antecederam.

  14. O estilo em Alfred Döblin

    Directory of Open Access Journals (Sweden)

    Elcio Loureiro Cornelsen

    2010-01-01

    Full Text Available O objetivo do presente artigo é apresentar alguns aspectos teóricos postulados pelo escritor alemão Alfred Döblin em seus ensaios ao desenvolver sua própria concepção da obra épica na "era da técnica" à luz de questões estilísticas, propondo conceitos como "estilo cinematográfico", "despersonalização", "fantasia factual" e "fantasia cinética". Para uma delimitação conceitual em relação à noção de "estilo", serão tomadas por base as considerações de Antoine Compagnon, postuladas na obra O demônio da teoria (1999, bem como as reflexões de Walter Benjamin, presentes na resenha "A crise do romance" (1930 e no ensaio "O narrador" (1936.

  15. Rapsódia em agosto

    Directory of Open Access Journals (Sweden)

    Sergio Leitão

    2015-08-01

    Full Text Available Neste artigo analiso se a tragédia das explosões nucleares em Hiroshima e Nagasaki ensinou algo de definitivo à humanidade, demonstrando o poder fatal das armas nucleares, o que continuaria a justificar o seu banimento da face da Terra. E o faço debatendo em que medida as discussões sobre o poder atômico repercutiram no Brasil, apontando as similaridades entre os argumentos utilizados nos idos dos anos 1970 e no momento atual, quando setores do país argumentam que não podemos prescindir do poderio atômico para assegurar nossa devida relevância no cenário político internacional.

  16. Dermatoses em pacientes com diabetes mellitus

    OpenAIRE

    Foss,N T; Polon,D P; Takada,M H; Foss-Freitas,M C; Foss,M C

    2005-01-01

    OBJETIVO: Ainda é desconhecida a relação do diabetes com fatores determinantes ou precipitantes de lesões dermatológicas em pacientes diabéticos. Assim, o objetivo do estudo foi investigar a presença de lesões cutâneas, não referidas pelo paciente diabético e sua relação com o controle metabólico da doença. MÉTODOS: Foram examinados 403 pacientes, dos quais 31% eram diabéticos do tipo 1 e 69% do tipo 2. Em ambulatório de um hospital universitário, os pacientes foram atendidos por endocrinolog...

  17. Multiplicadores Fiscais e Investimento em Infraestrutura

    Directory of Open Access Journals (Sweden)

    Guilherme V. Moura

    2015-03-01

    Full Text Available Este trabalho utiliza um modelo DSGE para calcular multiplicadores a valor presente para gastos do governo com consumo e investimento. Os resultados mostram que o efeito inicial do aumento do consumo público sobre o PIB é positivo, porém, o efeito de longo prazo é menor do que um em todos os cenários analisados. Por outro lado, gastos com investimento acarretam não só um impacto inicial positivo, mas também um efeito de longo prazo superior a um mesmo para valores da elasticidade produto do capital público muito baixos, apontando para as vantagens de uma política fiscal baseada em gastos com investimento.

  18. Direitos Humanos em Kant e Habermas

    Directory of Open Access Journals (Sweden)

    Alessandro Pinzani

    2011-12-01

    Full Text Available http://dx.doi.org/10.5007/1677-2954.2011v10n1p179 O livro de Milene Tonetto é mais ambicioso do que o título poderia deixar pensar. Longe de limitar-se a uma exposição da temática dos direitos humanos nos dois autores em questão, o texto representa uma contribuição importante à discussão acerca dos fundamentos do direito em Kant e da relação entre direito e moral na obra deste pensador, assim como à discussão acerca da fundamentação do direito oferecida por Habermas.

  19. Viabilidade do Lactobacillus casei em sorvete caseiro.

    OpenAIRE

    Bruno Gustavo Souza; Carolina Ragusa; Christiane Maciel Vasconcellos Barros de Rensis; Marcela de Rezende Costa; Kátia Sivieri

    2009-01-01

    Os probióticos vêm ganhando uma importância considerável na nossa alimentação por proporcionarem efeitos benéficos ao bem-estar e à saúde humana. O presente trabalho teve como objetivo analisar a viabilidade do microrganismo probiótico Lactobacillus casei em sorvete caseiro. A viabilidade foi avaliada aos 0, 7, 14, 21 e 28 dias após o processamento do sorvete através de contagens em meio MRS. Observou-se que durante toda a vida de prateleira do sorvete o L. casei se mostrou viável, com uma co...

  20. Percutaneous absorption and disposition of Tinopal EMS

    International Nuclear Information System (INIS)

    Black, T.G.; Moule, R.C.; Philp, J.

    1977-01-01

    A cotton-substantive, anionic, fluorescent whitening agent manufactured by several suppliers under various trade names e.g. Tinopal EMS, has been synthesized in radioactive form. Intubation of detergent or aqueous solution into rats resulted in little absorption from the intestinal tract as evidenced by low radioactivity in the urine and tissues. Most of the dose was excreted rapidly in the faeces. After parenteral administration to rats, the radioactivity was rapidly excreted in the faeces with small amounts remaining in tissues and organs. There was slight evidence of retention of radioactivity in the kidneys. Very small amounts of Tinopal EMS in detergent were absorbed through rat skin, but only when concentrations greater than those normally used by the consumer, together with occlusion of the skin were employed. Small amounts were absorbed through skin when applied in ethanol. It is concluded that the possibility of systemic toxic effects in man as a result of percutaneous absorption is remote

  1. Resultados em e-Learning corporativo

    OpenAIRE

    Cardoso, Fernando de Carvalho

    2011-01-01

    As empresas estão ampliando muito a utilização do e-learning em seus processos de educação corporativa, este trabalho iniciou-se na busca para responder quais são os impactos da implementação do e-Learning no processo educacional nas corporações. Esta dissertação de mestrado apresenta um estudo dos resultados das ações de e-learning e o contexto em que este está inserido, nas corporações e na sociedade. Para tanto foram utilizados autores que falam sobre educação, educação corporativa, ...

  2. Risk-Association of <em>CYP11A1em> Polymorphisms and Breast Cancer Among Han Chinese Women in Southern China

    Directory of Open Access Journals (Sweden)

    Minying Sun

    2012-04-01

    Full Text Available Exposure to endogenous sex hormones has been reported as a risk factor for breast cancer. The <em>CYP11A1em> gene encodes the key enzyme that catalyzes the initial and rate-limiting step in steroid hormone synthesis. In this study, the associations between single nucleotide polymorphisms (SNPs in <em>CYP11A1em> and breast cancer susceptibility were examined. Six SNPs in <em>CYP11A1 em>were genotyped using the MassARRAY IPLEX platform in 530 breast cancer patients and 546 healthy controls. Association analyses based on a χ2 test and binary logistic regression were performed to determine the odds ratio (<em>OR> and 95% confidence interval (95% <em>CI> for each SNP. Two loci (rs2959008 and rs2279357 showed evidence of associations with breast cancer risk. The variant genotype C/T-C/C of rs2959008 was significantly associated with a decreased risk (age-adjusted<em> ORem>, 0.75; 95% <em>CI>, 0.58–0.96; <em>P em>= 0.023 compared with the wild-type TT. However, the homozygous TT variant of rs2279357 exhibited increased susceptibility to breast cancer (age-adjusted<em> ORem>, 1.44; 95% <em>CI>, 1.05–1.98; <em>P em>= 0.022. The locus rs2959003 also showed an appreciable effect, but no associations were observed for three other SNPs. Our results suggest that polymorphisms of <em>CYP11A1em> are related to breast cancer susceptibility in Han Chinese women of South China.

  3. Subsurface imaging by electrical and EM methods

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-01

    This report consists of 3 subjects. 1) Three dimensional inversion of resistivity data with topography : In this study, we developed a 3-D inversion method based on the finite element calculation of model responses, which can effectively accommodate the irregular topography. In solving the inverse problem, the iterative least-squares approach comprising the smoothness-constraints was taken along with the reciprocity approach in the calculation of Jacobian. Furthermore the Active Constraint Balancing, which has been recently developed by ourselves to enhance the resolving power of the inverse problem, was also employed. Since our new algorithm accounts for the topography in the inversion step, topography correction is not necessary as a preliminary processing and we can expect a more accurate image of the earth. 2) Electromagnetic responses due to a source in the borehole : The effects of borehole fluid and casing on the borehole EM responses should thoroughly be analyzed since they may affect the resultant image of the earth. In this study, we developed an accurate algorithm for calculating the EM responses containing the effects of borehole fluid and casing when a current-carrying ring is located on the borehole axis. An analytic expression for primary vertical magnetic field along the borehole axis was first formulated and the fast Fourier transform is to be applied to get the EM fields at any location in whole space. 3) High frequency electromagnetic impedance survey : At high frequencies the EM impedance becomes a function of the angle of incidence or the horizontal wavenumber, so the electrical properties cannot be readily extracted without first eliminating the effect of horizontal wavenumber on the impedance. For this purpose, this paper considers two independent methods for accurately determining the horizontal wavenumber, which in turn is used to correct the impedance data. The 'apparent' electrical properties derived from the corrected impedance

  4. A LÍNGUA EM ESTADO GASOSO

    Directory of Open Access Journals (Sweden)

    E. M de Melo e Castro

    1998-10-01

    Full Text Available Guimarães Rosa, numa carta a João Condé publicada no Jornal de Letras e Artes de 21 de Julho de 1946 deixou esta sugestão: "Mas,ainda haveria mais, se possível (sonhar é fácil, João Condé, realizar é que são elas ...: além dos estados líquidos e sólidos, porque não tentartrabalhar a língua em estado gasoso?!"Nesta comunicação tratarei de averiguar o que possa ser o estado gasosoda língua quer sob o ponto de vista físico quer sob o ponto de vista metafórico.Sob o ponto de vista físico devem ser considerados dois momentos: o daciência geralmente divu lgada na época em que Guimarães Rosa fez essasugestão, c o da atua l ciência do Caos, tendo em consideração os movimentosbrownianos das moléculas descritos na teoria cin ética dos gases.Sob o ponto de vista metafórico, o uso de uma terminologia interd isciplinar,à luz dos referidos conceitos da ciência, pode contribu ir para delinearuma possível concepção linguística que esteja de acordo com aprática c o uso criativo diferenciados da língua portuguesa, não só noBrasil c em Portugal, mas também nos países africanos de língua portuguesa, configurando-se ass im uma possível teoria cinética da língua.

  5. Online EM with weight-based forgetting

    OpenAIRE

    Celaya, Enric; Agostini, Alejandro

    2015-01-01

    In the on-line version of the EM algorithm introduced by Sato and Ishii (2000), a time-dependent discount factor is introduced for forgetting the effect of the old posterior values obtained with an earlier, inaccurate estimator. In their approach, forgetting is uniformly applied to the estimators of each mixture component depending exclusively on time, irrespective of the weight attributed to each unit for the observed sample. This causes an excessive forgetting in the less frequently sampled...

  6. Vitamina A em dieta de juvenis de pacu cultivados em tanques-rede

    Directory of Open Access Journals (Sweden)

    Arcangelo Augusto Signor

    2013-08-01

    Full Text Available O objetivo deste trabalho foi avaliar o efeito da suplementação de vitamina A na alimentação de juvenis de pacu cultivados em tanques-rede. Foram utilizados 2.000 peixes, com peso inicial médio de 66,93±15,03 g, distribuídos em delineamento inteiramente casualizado, em 20 tanques-rede de 5,0 m³, com cinco tratamentos e quatro repetições. As rações foram formuladas com 0, 3.000, 6.000, 9.000 e 12.000 UI de vitamina A por quilograma de dieta, por meio da suplementação com acetato de retinol. O arraçoamento foi realizado às 8:30, 13:30 e 17:30 h, até a saciedade aparente dos animais. Não foram observadas diferenças quanto aos parâmetros de desempenho produtivo, rendimento e composição química da carcaça, e aos parâmetros hematológicos e lipídios no fígado dos peixes que foram alimentados com diferentes níveis de vitamina A. A suplementação de vitamina A em dietas para juvenis de pacu criados em tanques-rede não influencia o desempenho produtivo dos peixes.

  7. Prevalência de transtornos mentais comuns em trabalhadores de enfermagem em um hospital da Bahia

    Directory of Open Access Journals (Sweden)

    Eder Pereira Rodrigues

    2014-04-01

    Full Text Available Neste estudo, objetivou-se descrever a prevalência de "suspeitos" de transtornos mentais comuns (TMC em trabalhadores de enfermagem em um hospital geral, no estado da Bahia. Realizou-se um estudo epidemiológico, de corte transversal, com 309 profissionais de enfermagem, que trabalhavam em atividades assistenciais em um hospital de grande porte. Os profissionais de enfermagem referiram sobrecarga de trabalho e baixa remuneração. As queixas de saúde mais frequentes estavam relacionadas à postura corporal e a saúde mental. A prevalência geral de "suspeitos" de TMC foi de 35,0%. Em relação aos aspectos psicossociais do trabalho, relataram uma alta demanda psicológica e baixo controle sobre as atividades laborais. Os resultados obtidos apontam que as condições de trabalho e saúde observadas, não são adequadas para a efetiva realização do trabalho de enfermagem no hospital estudado.

  8. Autopercepção do estresse em cuidadores de pessoa em sofrimento mental

    Directory of Open Access Journals (Sweden)

    Ana Flávia de Oliveira Santos

    2012-03-01

    Full Text Available O estudo objetivou avaliar a autopercepção do estresse entre familiares cuidadores de pessoa em sofrimento mental. Participaram 54 familiares cuidadores de usuário em tratamento em serviço de saúde mental há pelo menos um ano que residiam juntos. Aplicou-se um roteiro elaborado para esta pesquisa com vista a identificar os dados sociodemográficos e da autopercepção do estresse dos participantes, identificando-se a percepção do cuidador quanto ao estresse e aos fatores desencadeantes. Os resultados foram tratados por meio de estatística descritiva e análise de conteúdo segundo frequência de respostas. Dos participantes, 81,5% se perceberam com algum grau de estresse e entre estes, alguns aspectos da convivência com a pessoa em sofrimento mental foram avaliados como os que mais frequentemente contribuíam para esta percepção. Conclui-se que a experiência de cuidador de usuário de serviço de saúde mental é significada como estressante, necessitando apoio, orientação e auxílio em relação ao convívio no ambiente doméstico.

  9. Helicopter EMS: Research Endpoints and Potential Benefits

    Directory of Open Access Journals (Sweden)

    Stephen H. Thomas

    2012-01-01

    Full Text Available Patients, EMS systems, and healthcare regions benefit from Helicopter EMS (HEMS utilization. This article discusses these benefits in terms of specific endpoints utilized in research projects. The endpoint of interest, be it primary, secondary, or surrogate, is important to understand in the deployment of HEMS resources or in planning further HEMS outcomes research. The most important outcomes are those which show potential benefits to the patients, such as functional survival, pain relief, and earlier ALS care. Case reports are also important “outcomes” publications. The benefits of HEMS in the rural setting is the ability to provide timely access to Level I or Level II trauma centers and in nontrauma, interfacility transport of cardiac, stroke, and even sepsis patients. Many HEMS crews have pharmacologic and procedural capabilities that bring a different level of care to a trauma scene or small referring hospital, especially in the rural setting. Regional healthcare and EMS system's benefit from HEMS by their capability to extend the advanced level of care throughout a region, provide a “backup” for areas with limited ALS coverage, minimize transport times, make available direct transport to specialized centers, and offer flexibility of transport in overloaded hospital systems.

  10. Governanca em enfermagem: revisao integrativa da literatura

    Directory of Open Access Journals (Sweden)

    Jose Luis Guedes dos Santos

    2013-12-01

    Full Text Available O objetivo deste estudo foi identificar e caracterizar os tipos de governança em enfermagem, destacando seu impacto na prática dos enfermeiros e no cuidado em saúde. Trata-se de revisão integrativa a partir das bases de dados MEDLINE, CINAHL, LILACS e na biblioteca eletrônica SciELO, de 2007 a 2011, com os descritores Governança /Governance e Enfermagem/ Nursing, totalizando 25 artigos. Foram identificados três modelos de governança, estudados principalmente nos Estados Unidos e Inglaterra: governança compartilhada, governança clínica e governança pública. Entre os impactos desses modelos, destacam-se: melhoria da qualidade assistencial, maior autonomia profissional dos enfermeiros, melhoria da articulação entre os serviços de saúde e maior satisfação profissional entre enfermeiros. Pontua-se a necessidade da realização de estudos sobre a temática na América Latina, com o intuito de avaliar sua aplicabilidade em diferentes contextos.

  11. The US DOE EM international program

    Energy Technology Data Exchange (ETDEWEB)

    Elmetti, Rosa R.; Han, Ana M. [U.S. Department of Energy, Washington, D.C. (United States); Roach, Jay A. [Nexergy Technical, LLC., Falls Church, Virginia (United States)

    2013-07-01

    The U.S. Department of Energy (DOE) Office of Environmental Management (EM) conducts international collaboration activities in support of U.S. policies and objectives regarding the accelerated risk reduction and remediation of environmental legacy of the nations' nuclear weapons program and government sponsored nuclear energy research. The EM International Program supported out of the EM Office of the Associate Principal Deputy Assistant Secretary pursues collaborations with foreign government organizations, educational institutions and private industry to assist in identifying technologies and promote international collaborations that leverage resources and link international experience and expertise. In fiscal year (FY) 2012, the International Program awarded eight international collaborative projects for work scope spanning waste processing, groundwater and soil remediation, deactivation and decommissioning (D and D) and nuclear materials disposition initiatives to seven foreign organizations. Additionally, the International Program's scope and collaboration opportunities were expanded to include technical as well as non-technical areas. This paper will present an overview of the on-going tasks awarded in FY 2012 and an update of upcoming international activities and opportunities for expansion into the remainder of FY 2013 and beyond. (authors)

  12. Feminismo(s e psicologia em Portugal

    Directory of Open Access Journals (Sweden)

    Azambuja, Mariana Porto Ruwer de

    2007-01-01

    Full Text Available Apesar da longa história em comum entre Brasil e Portugal, também existem muitas diferenças e, principalmente, muito desconhecimento. A proposta deste artigo é apresentar uma contextualização do modo como as questões de gênero têm sido tartadas Portugal e, a partir disto, estimular maiores laços de cooperação entre os dois países. Iniciamos com uma retomada da história do país e das reformas instauradas após o fim do regime fascista (1974, especialmente o surgimento da psicologia como campo científico e profissional marcado pelo paradigma positivista e, por muito tempo, alheio às transformações e questionamentos presentes em outros contextos. Da mesma forma, o percurso do movimento feminista e sua inserção no contexto acadêmico da psicologia foi marcado por avanços e entraves, os quais apresentamos a seguir. Por fim, tratamos das políticas públicas para a igualdade de oportunidades para as mulheres em Portugal

  13. TandEM: Titan and Enceladus mission

    Science.gov (United States)

    Coustenis, A.; Atreya, S.K.; Balint, T.; Brown, R.H.; Dougherty, M.K.; Ferri, F.; Fulchignoni, M.; Gautier, D.; Gowen, R.A.; Griffith, C.A.; Gurvits, L.I.; Jaumann, R.; Langevin, Y.; Leese, M.R.; Lunine, J.I.; McKay, C.P.; Moussas, X.; Muller-Wodarg, I.; Neubauer, F.; Owen, T.C.; Raulin, F.; Sittler, E.C.; Sohl, F.; Sotin, Christophe; Tobie, G.; Tokano, T.; Turtle, E.P.; Wahlund, J.-E.; Waite, J.H.; Baines, K.H.; Blamont, J.; Coates, A.J.; Dandouras, I.; Krimigis, T.; Lellouch, E.; Lorenz, R.D.; Morse, A.; Porco, C.C.; Hirtzig, M.; Saur, J.; Spilker, T.; Zarnecki, J.C.; Choi, E.; Achilleos, N.; Amils, R.; Annan, P.; Atkinson, D.H.; Benilan, Y.; Bertucci, C.; Bezard, B.; Bjoraker, G.L.; Blanc, M.; Boireau, L.; Bouman, J.; Cabane, M.; Capria, M.T.; Chassefiere, E.; Coll, P.; Combes, M.; Cooper, J.F.; Coradini, A.; Crary, F.; Cravens, T.; Daglis, I.A.; de Angelis, E.; De Bergh, C.; de Pater, I.; Dunford, C.; Durry, G.; Dutuit, O.; Fairbrother, D.; Flasar, F.M.; Fortes, A.D.; Frampton, R.; Fujimoto, M.; Galand, M.; Grasset, O.; Grott, M.; Haltigin, T.; Herique, A.; Hersant, F.; Hussmann, H.; Ip, W.; Johnson, R.; Kallio, E.; Kempf, S.; Knapmeyer, M.; Kofman, W.; Koop, R.; Kostiuk, T.; Krupp, N.; Kuppers, M.; Lammer, H.; Lara, L.-M.; Lavvas, P.; Le, Mouelic S.; Lebonnois, S.; Ledvina, S.; Li, Ji; Livengood, T.A.; Lopes, R.M.; Lopez-Moreno, J. -J.; Luz, D.; Mahaffy, P.R.; Mall, U.; Martinez-Frias, J.; Marty, B.; McCord, T.; Salvan, C.M.; Milillo, A.; Mitchell, D.G.; Modolo, R.; Mousis, O.; Nakamura, M.; Neish, Catherine D.; Nixon, C.A.; Mvondo, D.N.; Orton, G.; Paetzold, M.; Pitman, J.; Pogrebenko, S.; Pollard, W.; Prieto-Ballesteros, O.; Rannou, P.; Reh, K.; Richter, L.; Robb, F.T.; Rodrigo, R.; Rodriguez, S.; Romani, P.; Bermejo, M.R.; Sarris, E.T.; Schenk, P.; Schmitt, B.; Schmitz, N.; Schulze-Makuch, D.; Schwingenschuh, K.; Selig, A.; Sicardy, B.; Soderblom, L.; Spilker, L.J.; Stam, D.; Steele, A.; Stephan, K.; Strobel, D.F.; Szego, K.; Szopa,

    2009-01-01

    TandEM was proposed as an L-class (large) mission in response to ESA’s Cosmic Vision 2015–2025 Call, and accepted for further studies, with the goal of exploring Titan and Enceladus. The mission concept is to perform in situ investigations of two worlds tied together by location and properties, whose remarkable natures have been partly revealed by the ongoing Cassini–Huygens mission. These bodies still hold mysteries requiring a complete exploration using a variety of vehicles and instruments. TandEM is an ambitious mission because its targets are two of the most exciting and challenging bodies in the Solar System. It is designed to build on but exceed the scientific and technological accomplishments of the Cassini–Huygens mission, exploring Titan and Enceladus in ways that are not currently possible (full close-up and in situ coverage over long periods of time). In the current mission architecture, TandEM proposes to deliver two medium-sized spacecraft to the Saturnian system. One spacecraft would be an orbiter with a large host of instruments which would perform several Enceladus flybys and deliver penetrators to its surface before going into a dedicated orbit around Titan alone, while the other spacecraft would carry the Titan in situ investigation components, i.e. a hot-air balloon (Montgolfière) and possibly several landing probes to be delivered through the atmosphere.

  14. Determinação da CL90 e TL90 do isolado IBCB66 de Beauveria bassiana (Ascomycetes: Clavicipitaceae para o controle de Rhipicephalus (Boophilus microplus (Acari: Ixodidae Determination of LC 90 and LT 90 of IBCB66 Beauveria bassiana (Ascomycetes: Clavicipitaceae isolate for Rhipicephalus (Boophilus microplus (Acari: Ixodidae control

    Directory of Open Access Journals (Sweden)

    Barci Leila A. G.

    2009-12-01

    Full Text Available O presente trabalho teve por objetivo avaliar a patogenicidade e a virulência do isolado IBCB66 de Beauveria bassiana para larvas de Rhipicephalus (Boophilus microplus. O isolado IBCB66 foi utilizado como padrão, com a finalidade de determinar a CL50 (Concentração Letal, CL90, TL50 (Tempo Letal e TL90. O isolado IBCB66 foi testado em seis concentrações diferentes (5 × 10(6, 10(7, 5 × 10(7, 10(8, 5 × 10(8 e 10(9 para determinar a porcentagem de mortalidade. A mortalidade total de larvas foi observada 18 dias após o início do teste no grupo tratado com 5 × 10(9 conídios.mL-1. A análise de Probit dos dados consignados apontou a CL50 e CL90 concentrações de 3 × 10(7 e 5 × 10(8 conídios.mL-1 e para TL50 e TL90, foram 10 e 16 dias, respectivamente.The objective of this research was to evaluate the pathogenicity and the virulence of the IBCB66 isolate of Beauveria bassiana on infected larvae of Rhipicephalus (Boophilus microplus. The IBCB66 fungus strain was used as standard isolates of B. bassiana against R. (B. microplus larvae. The larval bioassay tests using the IBCB66 isolate were carried out to determine the (Lethal Concentration LC50, LC90, (Lethal Time LT50 and LT90. The IBCB66 fungus strain was tested at six different concentrations (5 × 10(6, 10(7, 5 × 10(7, 10(8, 5 × 10(8 and 10(9 conidia.mL-1 to determine the percentage of larval mortality. In addition, a Probit analysis was also performed. Total larval mortality was observed eighteen days after the beginning of the test in the group treated with 5 × 10(9 conidia.mL-1. The LC50 and LC90 were 3 × 10(7 and 5 × 10(8 respectively and the LT50 and LT90 were 10 and 16 days.

  15. Ação do fungo Beauveria bassiana (Balsamo Vuillemin, 1912 sobre a fase parasitária do carrapato Anocentor nitens (Neumann, 1897 Schulze, 1937 (Acari: ixodidae Action of the fungus Beauveria bassiana (Balsamo Vuillemin, 1912 on the parasitic phase of the tick Anocentor nitens (Neumann, 1897 Schulze, 1937 (Acari: ixodidae

    Directory of Open Access Journals (Sweden)

    Silvia Gonzalez Monteiro

    2003-06-01

    Full Text Available A patogenicidade do fungo Beauveria bassiana (isolado 986 foi avaliada no desenvolvimento da fase parasitária do Anocentor nitens, acompanhando o desenvolvimento de larvas não alimentadas até o estágio adulto. Foram utilizados dois tratamentos e um grupo controle com cinco repetições cada. No tratamento 1 (T1, as orelhas dos bovinos foram banhadas com a suspensão fúngica de 10(8 conídios ml-1; no tratamento 2 (T2, as orelhas foram banhadas com água destilada e espalhante adesivo. No grupo controle (C, as orelhas foram banhadas com água destilada. Após 24 horas dos tratamentos, as orelhas de cada animal foram infestadas com 100mg de larvas. Os parâmetros analisados, em cada tratamento, foram: número e peso de fêmeas recuperadas; períodos de pré-postura, postura, incubação, eclosão e longevidade; percentual de eclosão; peso da massa de ovos e da quenógina; índices de eficiência reprodutiva e nutricional. Verificou-se que, no T1 e T2, o número de fêmeas recuperadas, após 35 dias, foi significantemente menor (PThis study evaluated the pathogenicity of the fungus Beauveria bassiana (Isolate 986 on the development of the parasitic phase of Anocentor nitens by accompanying the development of unfed larvae until the adult stage. Two treated and one control group were used with five repetitions each. In the first treated group (T1, cattle ears were bathed with a fungal suspension of 10(8 conidia ml-1, second treated group (T2, the ears were bathed with distilled water and Tween 80 1% and the control group (C, the ears were bathed with distilled water. One day after treatment, the ears of each animal were infested with 100 mg of larvae. The parameters analyzed in each treatment were: number and weight of females recovered; periods of pre-oviposition, oviposition, incubation, eclosion and longevity; percentage of eggs hatched; weight of the egg mass and of females after oviposition. We found that in the two treated groups the

  16. Emprêgo do curare em convulsoterapia

    Directory of Open Access Journals (Sweden)

    Amando Caiuby Novaes

    1947-12-01

    Full Text Available Curare, sob a forma de Intocostrin, foi usado em um grupo de casos selecionados, representando condições diversas que contra-indicavam a convulsoterapia não modificada. Foram realizadas 37 aplicações, sem a ocorrência de qualquer acidente traumático, verificando-se em todos os casos acentuada diminuição da rigidez tônico-clônica caraterística das crises provocadas pelos agentes convulsionantes. Com sua associação, o temor dos pacientes pela convulsoterapia se torna bastante reduzido e o mal-estar pós-paroxístico é menos intenso do que na terapêutica não modificada. A prostigmina, sendo um antídoto do curare, deve ser administrada em todos os casos em que a curarização se afigure muito pronunciada. A dose de 1 miligramo por quilo de peso é suficiente para determinar curarização satisfatória, aconselhando-se, entretanto, na primeira aplicação, o emprego de 10% menos da dose estipulada. Não verificamos a necessidade do emprego de doses de cardiazol maiores do que as utilizadas na cardiazoloterapia simples. São semelhantes os resultados clínicos obtidos com a convulsoterapia com ou sem curarização preliminar, o que demonstra que o curare não modifica a eficácia terapêutica dos agentes convulsionantes. Podemos concluir, do que acima ficou exposto, que a curarização preliminar constitui o meio ideal de eliminar com sucesso o risco de complicações traumáticas decorrentes da convulsoterapia, permitindo, por isso, o emprego das terapêuticas de choque a indivíduos que, diante de suas condições somáticas, não poderiam, de outro modo, ser tratados com segurança. Pelas vantagens que oferece e segurança de sua administração, poderia vir a constituir, não fôra razões sobretudo de ordem econômica, prática rotineira como modificador da convulsoterapia pelo cardiazol ou eletrochoque. Foram tais considerações, aliadas ao fato de serem estas as primeiras observações publicadas em nosso meio, que nos

  17. Antioxidative Characteristics of <em>Anisomeles indicaem> Extract and Inhibitory Effect of Ovatodiolide on Melanogenesis

    Directory of Open Access Journals (Sweden)

    Li-Ling Chang

    2012-05-01

    Full Text Available The purpose of the study was to investigate the antioxidant characteristics of <em>Anisomeles indicaem> methanol extract and the inhibitory effect of ovatodiolide on melanogenesis. In the study, the antioxidant capacities of <em>A. indicaem> methanol extract such as DPPH assay, ABTS radical scavenging assay, reducing capacity and metal ion chelating capacity as well as total phenolic content of the extract were investigated. In addition, the inhibitory effects of ovatodiolide on mushroom tyrosinase, B16F10 intracellular tyrosinase and melanin content were determined spectrophotometrically. Our results revealed that the antioxidant capacities of <em>A. indicaem> methanol extract increased in a dose-dependent pattern. The purified ovatodiolide inhibited mushroom tyrosinase activity (IC50 = 0.253 mM, the compound also effectively suppressed intracellular tyrosinase activity (IC50 = 0.469 mM and decreased the amount of melanin (IC50 = 0.435 mM in a dose-dependent manner in B16F10 cells. Our results concluded that <em>A. indicaem> methanol extract displays antioxidant capacities and ovatodiolide purified from the extract inhibited melanogenesis in B16F10 cells. Hence, <em>A. indicaem> methanol extract and ovatodiolide could be applied as a type of dermatological whitening agent in skin care products.

  18. Molecular Identification of Chronic Bee Paralysis Virus Infection in <em>Apis melliferaem> Colonies in Japan

    Directory of Open Access Journals (Sweden)

    Tomomi Morimoto

    2012-06-01

    Full Text Available Chronic bee paralysis virus (CBPV infection causes chronic paralysis and loss of workers in honey bee colonies around the world. Although CBPV shows a worldwide distribution, it had not been molecularly detected in Japan. Our investigation of <em>Apis melliferaem> and <em>Apis cerana japonicaem> colonies with RT-PCR has revealed CBPV infection in <em>A. melliferaem> but not <em>A. c. japonicaem> colonies in Japan. The prevalence of CBPV is low compared with that of other viruses: deformed wing virus (DWV, black queen cell virus (BQCV, Israel acute paralysis virus (IAPV, and sac brood virus (SBV, previously reported in Japan. Because of its low prevalence (5.6% in <em>A. melliferaem> colonies, the incidence of colony losses by CBPV infection must be sporadic in Japan. The presence of the (− strand RNA in dying workers suggests that CBPV infection and replication may contribute to their symptoms. Phylogenetic analysis demonstrates a geographic separation of Japanese isolates from European, Uruguayan, and mainland US isolates. The lack of major exchange of honey bees between Europe/mainland US and Japan for the recent 26 years (1985–2010 may have resulted in the geographic separation of Japanese CBPV isolates.

  19. Protective Effect of <em>T. violaceaem> Rhizome Extract Against Hypercholesterolemia-Induced Oxidative Stress in Wistar Rats

    Directory of Open Access Journals (Sweden)

    Olorunnisola Sinbad Olorunnisola

    2012-05-01

    Full Text Available The present study examines the effect of methanolic extract of <em>T. violaceaem> rhizomes on high cholesterol (2% diet fed rats (HCD. At the end of 4 weeks, serum total protein, albumin, reduced glutathione (GSH, and markers of oxidative stress viz., catalase (CAT, superoxide dismutase (SOD, thiobarbituric acid reactive substances (TBARS—a marker of lipid peroxidation, glutathione-S-transferase (GST and glutathione peroxidase (GPx in the serum, aorta, liver and heart of HCD and normal rats were assessed and compared. A significant (<em>p> < 0.05 elevation in TBARS, and a reduction (<em>p> < 0.05 in serum total protein, albumin, GSH and antioxidant enzyme activities was observed in tissues of HCD fed rats compared with the normal group. Co-administration of crude extracts of <em>T. violaceaem> rhizomes protected the liver, heart, serum and aorta against HCD-induced lipid peroxidation in a dose dependant manner. The activities of the extract (500 mg/kg compared favorably with gemfibrozil. The extracts also protected against HCD-induced reduction in serum total protein, GSH and restored the activities of antioxidant tissues (liver, heart and aorta enzymes to near normal values. This result suggested that consumption of <em>T. violaceaem> rhizome may help to protect against hypercholesterolemia- induced oxidative stress diseases in the heart and liver.

  20. ESTABILIDADE DO ÁCIDO ASCÓRBICO EM SUCO DE LARANJA (Citrus sinensis) IN NATURA, EM SUCO REFRIGERADO E EM PREPARADOS QUENTES

    OpenAIRE

    Alves, Ana Paula de Faria; Santos, Janine V.; Neves, Laudelina B.; Sereia, Maria Josiane

    2008-01-01

    Foi realizada avaliação comparativa da retenção da vitamina C (ácido Ascórbico – AA) em suco fresco de laranjas íntegras, suco de laranja estocada sob refrigeração e em bolo contendo suco de laranja após a cocção em forno culinário convencional. O teor de AA em suco de laranjas armazenadas sob refrigeração por oito semanas variou entre 74,94 e 51,55 mg% com taxa de redução de 0,92% ao dia. Em suco fresco de laranja armazenado sob refrigeração durante sete dias, o teor médio de AA foi de 49,62...

  1. Cyclic Bis-1,3-dialkylpyridiniums from the Sponge <em>Haliclona> sp.

    Directory of Open Access Journals (Sweden)

    Jongheon Shin

    2012-09-01

    Full Text Available Eight novel cyclic bis-1,3-dialkylpyridiniums, as well as two known compounds from the cyclostellettamine class, were isolated from the sponge <em>Haliclona> sp. from Korea. Structures of these novel compounds were determined using combined NMR and FAB-MS/MS analyses. Several of these compounds exhibited moderate cytotoxic and antibacterial activities against A549 cell-line and Gram-positive strains, respectively. The structure-activity relationships of cyclostellettamines are discussed based on their bioactivities.

  2. AVALIAÇÃO ERGONÔMICA DO TRABALHO EM ALTURA EM FACHADAS DE ESTRUTURAS VERTICAIS

    OpenAIRE

    Prado Stradioto, Juliano; Gonçalves Amaral, Fernando

    2016-01-01

    Resumo Na Construção Civil existe um grande número de situações envolvendo risco de vida e consequentemente problemas ergonômicos aos trabalhadores envolvidos, gerando uma variabilidade em todo processo de execução. Dentre todos os riscos conhecidos e estudados no ramo da Construção Predial, os serviços de execução de fachada encontra-se no topo da lista em termos de acidentes de trabalho e desconforto ergonômico a saúde do trabalhador. A NR-18 quando especifica os itens a serem cumpridos pel...

  3. Insucessos em empreendimentos nucleares devido a falhas em processos de Comunicação Pública

    OpenAIRE

    Ferreira,Vinícius V. M.; Soares,Wellington A.

    2012-01-01

    A energia nuclear é um tema amplamente discutido em todo o mundo. O acidente nuclear de Chernobyl e o acidente radiológico de Goiânia contribuíram decisivamente para que a sociedade brasileira tivesse uma imagem negativa sobre o tema. A operação da usina de Angra 3, atualmente em obras, está vinculada à construção de um repositório para armazenar os rejeitos radioativos, o que provavelmente será explorado pelos opositores do setor nuclear. Um dos grandes desafios dos profissionais envolvidos ...

  4. EXPERIENCIA DE ENSINO E APRENDIZAGEM DE FARMACOLOGIA EM MEDICINA VETERINÁRIA, EM ALEGRE- ES

    OpenAIRE

    Rudison da Silva Florêncio; Mirelle Baptista Jordaim; Débora de Souza Pozzatto; Amanda Maria Miranda Rodrigues dos Santos; Rosilene do Carmo Mendes; Thaís Portes Deorce Pimenta; Gabriela Fiuza Corato; Caio Vaz Baqui Lima; Mariana Corrêa Santos; Lenir Cardso Porfírio

    2016-01-01

    Em medicina veterinária a farmacologia é uma das disciplinas que une o ciclo básico com o ciclo profissionalizante, sendo constantemente utilizada na clínica médica e suas disciplinas relacionadas, além de possuir importante papel em áreas não relacionadas com clínica, cirurgia e áreas relacionadas. O estudo de farmacologia auxilia na formação de profissionais médicos veterinários, habilitando-os a utilizar os diferentes medicamentos e o conhecimento sobre eles para diagnosticar, tratar e pre...

  5. A new karyotype of <em>Calomyscus> from the Khorasan Province, Iran

    OpenAIRE

    Esmaeeli Somayeh; Darvish Jamshid; Haddad Farhang; Ghasemzadeh Fereshteh

    2008-01-01

    Abstract We report a new karyotype of <em>Calomyscus> from two localities of the Khorasan Province (Aghdarband, 36° 11’ 3”N, 60° 44’ 6” E and Khajemorad, 36° 8’ 5” N, 59° 41’ 58” E). Chromosomes were examined by conventional staining and C-banding techniques. The diploid chromosome number (2n) and the fundamental autosomal arm number (FNa) were 44 and 60 respectively. The autosomal set consisted of 12 pairs of telocentrics, 5 pairs of acrocent...

  6. Doenca renal policistica autossomica dominante em pacientes em hemodialise no sul do Brasil

    Directory of Open Access Journals (Sweden)

    Everton Fernando Alves

    2014-03-01

    Full Text Available Introdução: A doença renal policística autossômica dominante é a enfermidade renal hereditária mais comum em seres humanos. Objetivo: Analisar a prevalência, características clínicas e laboratoriais de pacientes com rins policísticos e relacionar as manifestações da doença por gênero. Métodos: Trata-se de um estudo observacional e retrospectivo. Foram revisados todos os prontuários médicos de pacientes com rins policísticos admitidos para hemodiálise entre 1995 e 2012, em quatro centros que atendem a área de abrangência da 15ª regional de saúde do Paraná, Brasil. Resultados: Fizeram parte do estudo 48 pacientes com rins policísticos, causa primária da doença renal crônica (DRC estágio 5. A prevalência da doença foi de um em 10.912 habitantes. A média de idade de ingresso na hemodiálise (50,7 anos e o tempo de seguimento em hemodiálise até o transplante (36,5 meses foi menor nos homens. A hipertensão arterial foi o diagnóstico mais frequente em 73% dos pacientes, com predominância em mulheres (51,4%. O cisto hepático foi a manifestação extrarrenal mais frequente nos homens (60,0%. Foram a óbito 10,4% dos pacientes que faziam uso de hemodiálise, sendo 60% de homens. A classe de droga anti-hipertensiva mais utilizada foi a que atua no sistema renina-angiotensina, com maior frequência de uso nas mulheres (53,3%. A ureia pós-diálise foi significativamente maior em homens. Conclusão: A prevalência da doença é baixa entre pacientes em hemodiálise no sul do Brasil. As diferenças observadas entre os gêneros, com exceção da ureia pós, não foram significantes. Os dados encontrados são diferentes dos reportados na América do Norte e Europa.

  7. Jornada “Usos i abusos del <em>peer-to-peer>”

    Directory of Open Access Journals (Sweden)

    Raquel Xalabarder

    2010-07-01

    Full Text Available El 3 de desembre de 2009, els Estudis de Dret i Ciència Política de la Universitat Oberta de Catalunya (UOC, juntament amb l'Internet Interdisciplinary Institute (IN3, van organitzar la jornada "Usos i abusos del <em>peer-to-peer">, que va tenir lloc a la seu central de la UOC a Barcelona. La jornada la van coordinar els professors d'aquests Estudis integrants del grup de recerca Interdret de l'IN3.

  8. Um metodo para modelagem de exceções em desenvolvimento baseado em componentes

    OpenAIRE

    Patrick Henrique da Silva Brito

    2005-01-01

    Resumo: Devido a grande popularização do Desenvolvimento Baseado em Componentes (DBC), ele vem sendo empregado inclusive no desenvolvimento de sistemas computacionais críticos. O emprego do DBC na construção de sistemas confiáveis evidencia a necessidade de se desenvolver componentes de software que sejam robustos e que possuam uma garantia maior do seu funcionamento correto. Tratamento de exceções é uma técnica bastante conhecida para a verificação e tratamento de erros em sistemas de softwa...

  9. Screening Commercially Available Entomopathogenic Biocontrol Agents for the Control of <em>Aethina tumidaem> (Coleoptera: Nitidulidae in the UK

    Directory of Open Access Journals (Sweden)

    Giles E. Budge

    2012-08-01

    Full Text Available The Small hive beetle, <em>Aethina tumidaem>, is an invasive pest of honey bees. Indigenous to sub-Saharan Africa, it has now become established in North America and Australia. It represents a serious threat to European honey bees. Commercially available entomopathogenic agents were screened for their potential to control beetle larvae. Entomopathogenic fungi investigated had minimal impact. The nematodes <em>Steinernema> krausseiem> and <em>S. carpocapsaeem> provided excellent control with 100% mortality of larvae being obtained. Sequential applications of the nematodes following larvae entering sand to pupate also provided excellent control for up to 3 weeks. The information gained supports the development of contingency plans to deal with <em>A. tumidaem> should it occur in the UK, and is relevant to the management of Small hive beetle where it is already present.

  10. Seasonal changes of trophic niche overlap in the stone marten (<em>Martes foinaem> and the red fox (<em>Vulpes vulpesem> in a mountainous area of the Northern Apennines (N-Italy

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    Anna Brangi

    1995-12-01

    Full Text Available Abstract Between 1989 and 1991, 284 scats of stone marten (<em>Martes foinaem> and 642 scats of red fox (<em>Vulpes vulpesem> were collected in a 280 km² mountainous area in the northern Apennines. The scats were analyzed to identify differences between the two species' diets. The prey were grouped in 6 food categories: Fruits, Other Vegetables, Small Mammals, Other Vertebrates, Invertebrates and Garbage. Annual trophic niche was wider in the Red fox (0.62 than in the stone marten (0.53. We also found a large overlap between the two species with some small differences: Other Vertebrates, Small Mammals and Other Vegetables were more used by the Red fox, while Fruits were more used by the stone marten. Riassunto Variazioni stagionali della sovrapposizione di nicchia trofica della faina (<em>Martes foinaem> e della volpe (<em>Vulpes vulpesem> in un'area montana degli Appennini settentrionali - Tra il 1989 e il 1991 sono state raccolte 284 feci di faina (<em>Martes foinaem> e 642 feci di volpe (<em>Vulpes vulpesem> in un'area montuosa di 280 km² situata nell'Appennino settentrionale. Le feci sono state analizzate per evidenziare le eventuali differenze nella dieta delle due specie. Le singole prede sono state raggruppate in 6 categorie alimentari: Frutta, Altri Vegetali, Micromammiferi, Altri Vertebrati, Invertebrati, Rifiuti. L'ampiezza annuale della dieta è risultata maggiore nella Volpe (0,62 che non nella Faina (0,53. È stata trovata inoltre una larga sovrapposizione tra le due specie con alcune differenze nell'uso degli Altri Vertebrati, dei Micromammiferi e degli Altri Vegetali che è maggiore nella Volpe e della Frutta, maggiore nella Faina.

  11. Novos encontros de anofelíneos em recipientes artificiais

    Directory of Open Access Journals (Sweden)

    Oswaldo Paulo Forattini

    1998-12-01

    Full Text Available Assinalam-se novos encontros de anofelíneos em recipientes artificiais. Um deles diz respeito a formas imaturas de Anopheles bellator em criadouros experimentais e outro é concernente ao achado de An. albitarsis l.s., em recipiente abandonado. Tecem-se considerações sobre a pressão seletiva representada pela produção, cada vez maior, de objetos descartáveis.

  12. Evaluación de la reacción de nueve genotipos de papa (<em>Solanum tuberosumem>subsp. <em>andigena> al ataque de <em>Phytophthora infestansem> (Mont de Bary

    Directory of Open Access Journals (Sweden)

    Betancourth G. Carlos

    2008-12-01

    Full Text Available

    El presente trabajo se realizó en el municipio de Pasto, departamento de Nariño, Colombia, a 2.710 msnm. El objetivo fue evaluar la reacción de los clones de papa Blanca, Pintada, Rosada tipo Capiro, Roja Guata, Roja Redonda y Roja Loca y tres variedades mejoradas: Parda Suprema, Roja Nariño y Betina, al ataque de la gota (<em>Phytophthora infestansem>. Se utilizó un diseño de bloques al azar con cuatro repeticiones y nueve tratamientos. Para la variable severidad los mejores genotipos fueron Blanca, Pintada, Parda Suprema y Betina con un promedio de 19,72; 21,99; 23,15 y 23,62%, respectivamente. El mejor rendimiento fue obtenido por los genotipos Blanca, Pintada, Parda Suprema, Betina y Roja Loca con 29,61; 24,66; 25,71; 27,12 y 28,05 t•ha-1, en su orden.

  13. Índice de Desenvolvimento Social em Aracaju – SE: A realidade urbana em 2000 e em 2010

    OpenAIRE

    Jesus, Christiane Freitas; Dias, Nelson

    2012-01-01

    A dinâmica econômica em Sergipe, a partir da década de 70, intensificou o fluxo migratório para Aracaju e municípios adjacentes, ocasionando uma nova configuração do urbano, principalmente na capital. As mudanças desse processo impactam diretamente o desenvolvimento social da população e refletem na qualidade de vida. Não obstante estas transformações, Aracaju passou a ser considerada, a partir de 2005, como a capital da qualidade de vida. No entanto, esta qualificação deixou de considerar al...

  14. Phenolics and Flavonoids Compounds, Phenylanine Ammonia Lyase and Antioxidant Activity Responses to Elevated CO2 in <em>Labisia pumilaem> (Myrisinaceae

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    Hawa Z.E. Jaafar

    2012-05-01

    Full Text Available A split plot 3 × 3 experiment was designed to examine the impact of three concentrations of CO2 (400, 800 and 1,200 µmol·mol−1 on the phenolic and flavonoid compound profiles, phenylalanine ammonia lyase (PAL and antioxidant activity in three varieties of <em>Labisia pumilaem> Benth. (var. <em>alata,> pumila em>and> lanceolataem> after 15 weeks of exposure. HPLC analysis revealed a strong influence of increased CO2 concentration on the modification of phenolic and flavonoid profiles, whose intensity depended on the interaction between CO2 levels and <em>L. pumilaem> varieties. Gallic acid and quercetin were the most abundant phenolics and flavonoids commonly present in all the varieties. With elevated CO2 (1,200 µmol·mol−1 exposure, gallic acid increased tremendously, especially in var. <em>alata> and <em>pumila em>(101–111%, whilst a large quercetin increase was noted in var. <em>lanceolata> (260%, followed closely by <em>alata> (201%. Kaempferol, although detected under ambient CO2 conditions, was undetected in all varieties after exposure. Instead, caffeic acid was enhanced tremendously in var. <em>alata> (338~1,100% and <em>pumila em>(298~433%. Meanwhile, pyragallol and rutin were only seen in var. <em>alata> (810 µg·g−1 DW and <em>pumila> (25 µg·g−1 DW, respectively, under ambient conditions; but the former compound went undetected in all varieties while rutin continued to increase by 262% after CO2 enrichment. Interestingly, naringenin that was present in all varieties under ambient conditions went undetected under enrichment, except for var. <em>pumila em>where it was enhanced by 1,100%. PAL activity, DPPH and FRAP also increased with increasing CO2 levels implying the possible improvement of health-promoting quality of Malaysian <em>L. pumilaem

  15. Dermatologia veterinária em animais de companhia

    OpenAIRE

    Pinho, Renato Martins

    2015-01-01

    Dissertação de Mestrado Integrado em Medicina Veterinária, Ciências Veterinárias A Dermatologia, em Medicina Veterinária, é uma área que representa entre 25 a 30% do total de consultas em animais de companhia, apresentando uma relação de proximidade crescente em relação à medicina humana. O presente trabalho teve como objetivos principais os seguintes estudos de caso: 1) Determinação da incidência de afeções dermatológicas e caracterização dos animais admitidos à consulta de especialida...

  16. O gênero Chloris (Poaceae) em Pernambuco, Brasil

    OpenAIRE

    Maciel, Jefferson Rodrigues; Silva, Wegliane Campelo da; Costa-e-Silva, Maria Bernadete

    2013-01-01

    Com o objetivo de colaborar com o conhecimento da riqueza de Poaceae em Pernambuco, foi estudado o gênero Chloris Sw. As coletas foram realizadas no estado, bem como dados foram coligidos de levantamento em herbários da região. Foram registradas sete espécies de Chloris em Pernambuco: C. barbata Sw., C. elata Desv., C. exilis Renv., C. gayana Kunth, C. orthonoton Döll, C. pycnothrix Trin. e C. virgata Sw. O gênero apresenta distribuição ampla em todas as zonas fitogeográficas do estado. Chlor...

  17. Percursos de leitura em FLE a distância

    OpenAIRE

    Cíntia Voos Kaspary

    2012-01-01

    Esta pesquisa propõe uma análise do uso de ferramentas digitais, em especial do mapa mental, através de uma abordagem sócio-interacionista da leitura em FLE - Francês como língua estrangeira - como alternativa diferenciada de ensino- aprendizado. A partir deste preceito, foram discutidos aspectos do sócio-interacionismo, o conceito de letramentos e os gêneros do discurso para refletir sobre a aprendizagem da leitura em FLE através de tarefas que favoreçam situações de letramentos em ambientes...

  18. Quantitative Evaluation of Fire and EMS Mobilization Times

    CERN Document Server

    Upson, Robert

    2010-01-01

    Quantitative Evaluation of Fire and EMS Mobilization Times presents comprehensive empirical data on fire emergency and EMS call processing and turnout times, and aims to improve the operational benchmarks of NFPA peer consensus standards through a close examination of real-world data. The book also identifies and analyzes the elements that can influence EMS mobilization response times. Quantitative Evaluation of Fire and EMS Mobilization Times is intended for practitioners as a tool for analyzing fire emergency response times and developing methods for improving them. Researchers working in a

  19. Aeromonas spp. IN PRODUCTS OF ANIMAL ORIGIN AND DRINKING WATER OF GOIÂNIA-GO Aeromonas spp. EM PRODUTOS DE ORIGEM ANIMAL E EM ÁGUA DE CONSUMO DE GOIÂNIA - GO

    Directory of Open Access Journals (Sweden)

    Albenones José de Mesquita

    2007-09-01

    Full Text Available

    A total of 53 samples of products from animal origin and drinking water was examined for the presence of <em>Aeromonas spp.em> <em>Aeromonas> occurred in 26.41% (14/53 of the samples. The raw products showed high frequency of contamination and relatively high count Aeromonas hydrophila was the dominating species, 57.5%, being followed of <em>A. veroniem> (22.5%, <em>A. sobriaem> (17.5% and <em>A. mediaem> (2.5%. None of the <em>Aeromonas sppem>. was isolated from chlorinated or unchlorinated drinking water.

    KEY-WORDS: <em>Aeromonas>; animal origin products; drinking water.

    Um total de 53 amostras de produtos de origem animal e água de consumo foi examinado para se verificar a presença de <em>Aeromonas> <em>spp>. Desse total, 14/53 (26,41% amostras foram positivas para <em>Aeromonas>. Os produtos crus apresentaram maior freqüência de contaminação e contagem relativamente elevadas. A espécie <em>Aeromonas> <em>hydrophila> foi a mais freqüente (57,5%, seguida pelas espécies <em>A. veroniem> (22,5%, <em>A. sobriaem> (17,5% e A. media (2,5%. Nenhuma amostra de água de consumo, clorada ou não clorada, mostrou-se positiva para <em>Aeromonas> <em>ssp>.

    PALAVRA-CHAVE: <em>Aeromonas>; produtos de origem animal; água de consumo.

  20. Rhizonin A from <em>Burkholderia> sp. KCTC11096 and Its Growth Promoting Role in Lettuce Seed Germination

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    Sang-Mo Kang

    2012-07-01

    Full Text Available We isolated and identified a gibberellin-producing <em>Burkholderia em>sp. KCTC 11096 from agricultural field soils. The culture filtrate of plant growth promoting rhizobacteria (PGPR significantly increased the germination and growth of lettuce and Chinese cabbage seeds. The ethyl acetate extract of the PGPR culture showed significantly higher rate of lettuce seed germination and growth as compared to the distilled water treated control. The ethyl acetate fraction of the <em>Burkholderia em>sp. was subjected to bioassay-guided isolation and we obtained for the first time from a <em>Burkholderia em>sp. the plant growth promoting compound rhizonin A (1, which was characterized through NMR and MS techniques. Application of various concentrations of 1 significantly promoted the lettuce seed germination as compared to control.

  1. New Neoribates (Acari, Oribatida, Parakalummidae) from Vietnam

    Czech Academy of Sciences Publication Activity Database

    Ermilov, S.G.; Starý, Josef

    2017-01-01

    Roč. 4303, č. 1 (2017), s. 51-72 ISSN 1175-5326 Institutional research plan: CEZ:AV0Z60660521 Institutional support: RVO:60077344 Keywords : Oripodoidea * morphology * systematics * Tam Dao National Park * Oriental region Subject RIV: EG - Zoology OBOR OECD: Zoology Impact factor: 0.972, year: 2016

  2. New Protoribates (Acari, Oribatida, Haplozetidae) from Vietnam

    Czech Academy of Sciences Publication Activity Database

    Ermilov, S.G.; Starý, Josef

    2017-01-01

    Roč. 4258, č. 6 (2017), s. 501-524 ISSN 1175-5326 Institutional research plan: CEZ:AV0Z60660521 Institutional support: RVO:60077344 Keywords : Oripodoidea * morphology * systematics * new species * Tam Dao National Park * Oriental region Subject RIV: EG - Zoology OBOR OECD: Zoology Impact factor: 0.972, year: 2016

  3. fabricius (acari: ixodidae en equinos y bovinos

    Directory of Open Access Journals (Sweden)

    Víctor Álvarez C.

    2007-01-01

    Full Text Available Con el objetivo de ampliar el conocimiento sobre el comportamiento de los adultos y las ninfas de Amblyomma en equinos y bovinos, se desarrolló un estudio en San Pablo de Turrubares, provincia de San José. Para el trabajo de campo se empleó 3 métodos: revisión de los animales seleccionados, el arrastre por medio de bandera, y el trampeo con CO2. Los equinos demostraron ser la especie más susceptible para A. cajennense, seguidos por B. taurus. Las ninfas de A. cajennense se concentran en la época seca y a nivel de laboratorio muestran indicadores que colocan a estas garrapatas como individuos con una gran capacidad para sobrevivir sin alimento, lo que dificulta su control. No se encontró correlación entre la precipitación y los niveles de garrapatas; sin embargo, durante la época que incluye la mayoría de los meses lluviosos se encontró una mayor cantidad de garrapatas. Se observó sitios de preferencia por parte de A. cajennense para fijarse al cuerpo de los animales.

  4. A revision of the Plateremaeidae (Acari: Oribatei

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    Adilson D. Paschoal

    1986-01-01

    Full Text Available The family Plateremaeidae is revised, and includes the following taxa: Plateremaeus Berlese, with the only species P. ornatissimus (Berlese, from Brazil; Allodamaeus Banks, with the species ewingi (Banks, from the USA, coralgablensis, sp. n. (type-locality: USA, Flórida, Coral Gables, and ornatos Balogh & Csiszár, from Argentina; Lophoremaeus, gen. n., with two species: mirabilis Csiszár, from Bulgaria, the type-species, and laminipes (Berlese, n. comb., from Italy; Paralopheremaeus, gen. n., with the species legendrei (Balogh, n. comb., from Madagascar; Calipteremaeus, gen. n., with the species yaginumai (Aoki, n. comb., from Japan; the following species are considered incertae sedis: Plateremaeus carinulatus (Berlese, from Brasil, P. complanatus (Berlese, from Chile, P. rotundatus Berlese, from Japan, and P. tunicatus ( Balogh, from Zaire.A família Plateremaeidae é revista, e inclui os seguintes táxons: Plateremaeus Berlese, com a única espécie P. ornatissimus (Berlese, do Brazil; Allodamaeus Banks, com as espécies ewingi (Banks, dos Estados Unidos, coralgablensis, sp. n. (localidade-tipo: Estados Unidos, Flórida, Coral Gables e ornatos Balogh & Csziszár, da Argentina; Lophoremaeus, gen. n., com duas espécies: mirabilis Csiszár, da Bulgária, espécie-tipo, e laminipes (Berlese, n. comb., da Itália; Paralopheremaeus, gen. n., com a espécie legendrei (Balogh, n. comb., de Madagascar; Calipteremaeus. gen. n., com a espécie yaginumai (Aoki, n. comb., do Japão; as seguintes espécies são consideradas incertae sedis: Plateremaeus carinulatus (Berlese, do Brasil, P. complanatus (Berlese, do Chile, P. rotundatus Berlese, do Japão, e P. tunicatus (Balogh, do Zaire.

  5. Development of Microsatellite Markers for the Korean Mussel, <em>Mytilus coruscusem> (Mytilidae Using Next-Generation Sequencing

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    Hye Suck An

    2012-08-01

    Full Text Available <em>Mytilus coruscusem> (family Mytilidae is one of the most important marine shellfish species in Korea. During the past few decades, this species has become endangered due to the loss of habitats and overfishing. Despite this species’ importance, information on its genetic background is scarce. In this study, we developed microsatellite markers for <em>M.> coruscusem> using next-generation sequencing. A total of 263,900 raw reads were obtained from a quarter-plate run on the 454 GS-FLX titanium platform, and 176,327 unique sequences were generated with an average length of 381 bp; 2569 (1.45% sequences contained a minimum of five di- to tetra-nucleotide repeat motifs. Of the 51 loci screened, 46 were amplified successfully, and 22 were polymorphic among 30 individuals, with seven of trinucleotide repeats and three of tetranucleotide repeats. All loci exhibited high genetic variability, with an average of 17.32 alleles per locus, and the mean observed and expected heterozygosities were 0.67 and 0.90, respectively. In addition, cross-amplification was tested for all 22 loci in another congener species, <em>M.> <em>galloprovincialis.> None of the primer pairs resulted in effective amplification, which might be due to their high mutation rates. Our work demonstrated the utility of next-generation 454 sequencing as a method for the rapid and cost-effective identification of microsatellites. The high degree of polymorphism exhibited by the 22 newly developed microsatellites will be useful in future conservation genetic studies of this species.

  6. Reciclando a cidadania em rede interdisciplinar

    Directory of Open Access Journals (Sweden)

    Foresti, Andréa Jaeger

    2006-01-01

    Full Text Available Este texto tem por objetivo evidenciar o processo de constituição da ONG REDECRIAR, diretamente vinculada ao Projeto “Reciclando a Cidadania em Rede Interdisciplinar”, examinando os elementos que nele estão imbricados. O primeiro elemento se refere ao chamado Terceiro Setor, o qual se configurou como espaço de intervenção profissional, viabilizando a articulação de conhecimentos interdisciplinares, norteados por princípios éticos e políticos, que buscam garantir a universalidade das políticas sociais públicas. O segundo elemento a ser examinado é o Desenvolvimento Sustentável que se conformou como tema central das ações planejadas por abarcar, em seu conceito, o equilíbrio entre as questões ambientais, sociais e econômicas. Esta conformação determinou a efetividade da proposta, ao delinear o conteúdo das intervenções, direcionado a um públicoalvo coletivo. Nessa perspectiva, a implementação dos pressupostos metodológicos do Trabalho, em Redes Sociais, constitui-se como terceiro elemento imbricado no processo de constituição da REDECRIAR, corroborando com a reciclagem – aproximação prática de um novo conceito – da Cidadania, efetivado por um grupo de profissionais do Serviço Social, Biologia e Nutrição

  7. CONFLITOS E TRAUMAS NO RENASCIMENTO EM PORTUGAL

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    Nair Castro Soares

    2016-04-01

    Full Text Available Num século em que a abertura à modernidade trouxe um ardor renovado pelos ideais da Antiguidade Clássica, assimilados aos valores do Cristianismo – raízes da Civilização do Ocidental –,consuma-se a perda de Constantinopla e assiste-se ao crescente domínio turco e à defesa concertada contra o seu avanço; à grande gesta dos Descobrimentos, com as inevitáveis guerras de conquista; à Reforma protestante e às guerras de religião, qual Hidra de Lerna, no dizer de Erasmo; aos conflitos armados entre príncipes cristãos, que Camões interpela no Canto VII de Os Lusíadas.A Reforma de Lutero, Calvino, Henrique VIII fragmentaram a inconsútil túnica de Cristo e puseram fim à unidade da Respublica Christiana, que se tornou em Ocidente dos Estados. Marcantes nesta época foram o pragmatismo político de Maquiavel; o papel da ciência juridica, na definição do direito internacional e do direito dos povos.Em Portugal, muitos foram os conflitos decorrentes da política de expansão e da acção dos sucessivos monarcas, desde os inícios da Segunda Dinastia ao reinado de D. Sebastião: ex