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Registros recuperados: 255
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Trends and predictors of HIV-1 acquired drug resistance in Minas Gerais, Brazil: 2002–2012 BJID
Duani,Helena; Aleixo,Agdemir Waleria; Tupinambás,Unaí.
Abstract Several studies show that the prevalence of multidrug-resistant HIV-1 virus is declining over time. A retrospective cohort study was carried out to evaluate the trends of drug resistance in antiretroviral treatment-exposed individuals in a state of a middle-income country, Minas Gerais, southeast region of Brazil. We analyzed 2115 HIV-1 sequences from 2002 up to 2012, from 52 cities of Minas Gerais. The groups were analyzed according to the definitions: "IAS – 3 class mutations", if ≥1 drug resistance mutation from IAS 2015 list (DRM) was present in each class; "No fully susceptible drugs" as the absence of any fully susceptible drug in Stanford algorithm; and "GSS ≥ 2″, when a maximum calculated GSS (genotypic susceptibility score) was ≥2 or ≥3,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: HIV; Antiretroviral; Resistance; Genotyping; Epidemiology.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000200148
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Tuberculosis: a study of 111 cases in an area of high prevalence in the extreme south of Brazil BJID
Mattos,Ivo Gomes de; Ribeiro,Marta Osório; Netto,Isabel Cristina de O.; d'Azevedo,Pedro Alves.
Tuberculosis is an increasingly important public health problem in developing countries. We studied 111 tuberculosis patients confirmed by mycobacteria isolation between 1998 and 2000 in Rio Grande, in south Brazil. One-hundred-thirteen pulmonary and extrapulmonary clinical materials were examined through culture by the Ogawa-Kudoh method and through smear examination by the Ziehl-Nielsen or Kinyoun methods. The identification of Mycobacterium tuberculosis was done through the usual phenotypical methods. The proportion method (indirect technique) was used to determine the resistance of isolates. The man/woman ratio was 2.6:1, 75% were white, and the group had a mean age of 39.7±12.7. Risk factors were present in 38.7% (34 men and 9 women, p=0.2), with a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tuberculosis; Mycobacterium tuberculosis; Resistance.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000300008
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USDA-ARS sugar beet germplasm developed in Salinas, CA, evaluated for rhizomania resistance in Idaho NWISRL
Gillen, A.M.; Strausbaugh, C.A.; Gallian, J..
Thirty-one sugar beet germplasm breeding lines and releases produced by the USDA-ARS sugarbeet program at Salinas, CA, and one line from the USDA-ARS sugarbeet program at East Lansing, MI, were evaluated for resistance to rhizomania under south-central Idaho conditions at Twin Falls, ID. The field had been identified as having Beet necrotic yellow vein virus (BNYVV), which overcomes resistance conditioned by the Rzl gene. Single-row plots 10 ft long with 22-in. spacing were planted on 23 May 05. Plants were thinned to 4 to 6-in. spacing in mid-Jun. The materials were predominantly multigerm; they were hand thinned to single plants during the first week of Jul. The trial layout was a randomized complete block with eight replicates, however, the...
Tipo: Article Palavras-chave: Resistance; Rhizomania.
Ano: 2007 URL: http://eprints.nwisrl.ars.usda.gov/1226/1/1207.pdf
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Use of green fluorescent protein labeled non-tuberculous mycobacteria to evaluate the activity quaternary ammonium compound disinfectants and antibiotics BJM
Cortesia,Claudia; Bello,Teresita; Lopez,Gustavo; Franzblau,Scott; Waard,Jacobus de; Takiff,Howard.
Abstract Although infections with NonTuberculous Mycobacteria have become less common in AIDS patients, they are important opportunistic infections after surgical procedures, likely because they are ubiquitous and not efficiently killed by many commonly used disinfectants. In Venezuela there have recently been many non-tuberculous mycobacteria soft tissue infections after minor surgical procedures, some apparently related to the use of a commercial disinfectant based on a Quaternary Ammonium Compound. We studied the activity of this and other quaternary ammonium compounds on different non-tuberculous mycobacteria by transforming the mycobacteria with a dnaA-gfp fusion and then monitoring fluorescence to gauge the capacity of different quaternary ammonium...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Quaternary Ammonium Compounds (QACs); Disinfectants; NonTuberculous Mycobacteria (NTM); Resistance; Post-surgical infections.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000100151
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Use of local rice cultivars as additional differentials to identify pathotypes of Pyricularia oryzae Bragantia
Silva,Gisele Barata da; Araújo,Leila Garcês de; Lobo,Valácia Lemes da Silva; Prabhu,Anne Sitarama; Rêgo,Marcela Cristiane Ferreira; Paes,Eduardo Tavares; Filippi,Marta Cristina Corsi de.
Eight additional rice cultivars as differentials were selected to identify pathotypes occurring in the Tocantins State. They were BRS Jaburu, BRS Taim, BRS Biguá, BR IRGA-417, Epagri 109, Javaé, Metica-1 and Supremo. These differentials were used in addition to the international set to determine the pathogenic diversity of 193 Pyricularia oryzae isolates collected during 1994-2002 from irrigated rice cultivars. They were conserved in Pyricularia culture collection of Embrapa Rice and Bean Research center. From 193 P. oryzae isolates 38 pathotypes were identified based on leaf blast reactions of international set and 29 pathotypes based on these additional differentials. The predominant pathotypes (TI-1, TG-2, TD-15 and TF-2) were represented by 53% of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pyricularia grisea; Rice leaf blast; Physiologic races; Oryza sativa; Virulence; Resistance; Differential varieties.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052011000400019
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Use of potassium silicate for powdery mildew control in Eucalyptus benthamii seedlings PFB - Pesquisa Florestal Brasileira
Schultz, Bruno; Bora, Karen Christiane; Nogueira, Antonio Carlos; Auer, Celso Garcia.
Avaliou-se a efetividade do silicato de potássio (K2SiO3) no controle de oídio em mudas de Eucalyptus benthamii. Quatro tratamentos foram testados: pulverização de K2SiO3 (4 mL L-1) por 7 dias, pulverização de K2SiO3 (4 mL L-1) por 14 dias, pulverização do fungicida epoxiconazole + piraclostrobina (6 mL L-1) por 14 dias e pulverização de água ultrapurificada por 7 dias. Dez mudas com 90 dias de idade foram utilizadas por parcela em três blocos ao acaso. A inoculação foi feita pincelando-se esporos de Oidium eucalypti, retirados de mudas de E. benthamii já infectadas, sobre aspartes superiores de mudas sadias. Aos 150 dias, avaliou-se a severidade da doença e determinou-se a massa fresca (MF) e a massa seca (MS) da parte aérea. Mediu-se o diâmetro do coleto...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Silício; Resistência; Oidium eucalypti Silicon; Resistance; Oidium eucalypti.
Ano: 2012 URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/286
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Use of the D test method to detect inducible clindamycin resistance in coagulase negative staphylococci (CoNS) BJID
Perez,Leandro Reus Rodrigues; Caierão,Juliana; Antunes,Ana Lúcia Souza; d'Azevedo,Pedro Alves.
According to the National Committee for Clinical Laboratory Standards (NCCLS, 2004), a method to evaluate the inducible clindamycin resistance in accordance with an approach of the disks of erythromycin and clindamycin - the D test - has been reported. We analyzed the performance of this method in 200 coagulase negative staphylococci (CoNS) strains obtained from blood cultures of hospitalized patients at a general hospital in Southern Brazil. Twenty-seven clinical isolates with suitable profile (erythromycin-resistant and clindamycin-susceptible) were evaluated for the D test realization. Thus, only 5 CoNS were D test positive. The D test method showed to be simple and an important technique in the detection of inducible clindamycin resistance.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Clindamycin; Resistance; D test.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000200002
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Uso de injertos y contenido de fenoles solubles totales en genotipos de jitomate (Lycopersicon esculentum Mill.) resistentes y susceptibles a Fusarium oxysporum f. sp. lycopersici raza 3. Colegio de Postgraduados
Gómez Zavala, Luis Alberto.
En jitomate (Lycopersicon esculentum Mill.) germoplasmas no comerciales resistentes son usados como portainjertos para el control de enfermedades. Los compuestos fenólicos están asociados a genotipos resistentes contra especies de Fusarium. Altos contenidos de fenoles solubles totales puede estar asociado a genotipos resistentes a Fusarium oxysporum f. sp. lycopersici raza 3. En el presente estudio se comparo el porcentaje de severidad en plantas injertadas y no injertadas inoculadas con Fol-3, así como el contenido de fenoles solubles totales en plantas de jitomate Multifort resistente y Bizarr, Jazmín y Malinche susceptibles a este hongo. Plantas de los genotipos susceptibles injertadas sobre Multifort fueron inoculadas o no en una suspensión de 1x106/ml...
Palavras-chave: Injertos; Compuestos fenólicos; Fusarium oxysporum f. sp. lycopersici raza 3; Resistencia; Graft; Phenols; Resistance; Maestría; Fitopatología.
Ano: 2010 URL: http://hdl.handle.net/10521/230
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Uso de injertos y contenido de fenoles solubles totales en genotipos de jitomate (Lycopersicon esculentum Mill.) resistentes y susceptibles a Fusarium oxysporum f. sp. lycopersici raza 3. Colegio de Postgraduados
Gómez Zavala, Luis Alberto.
En jitomate (Lycopersicon esculentum Mill.) germoplasmas no comerciales resistentes son usados como portainjertos para el control de enfermedades. Los compuestos fenólicos están asociados a genotipos resistentes contra especies de Fusarium. Altos contenidos de fenoles solubles totales puede estar asociado a genotipos resistentes a Fusarium oxysporum f. sp. lycopersici raza 3. En el presente estudio se comparo el porcentaje de severidad en plantas injertadas y no injertadas inoculadas con Fol-3, así como el contenido de fenoles solubles totales en plantas de jitomate Multifort resistente y Bizarr, Jazmín y Malinche susceptibles a este hongo. Plantas de los genotipos susceptibles injertadas sobre Multifort fueron inoculadas o no en una suspensión de 1x106/ml...
Palavras-chave: Injertos; Compuestos fenólicos; Fusarium oxysporum f. sp. lycopersici raza 3; Resistencia; Graft; Phenols; Resistance; Maestría; Fitopatología.
Ano: 2010 URL: http://hdl.handle.net/10521/230
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Variedades: a solução para a bananicultura. Infoteca-e
DUARTE, O. R..
Tipo: Folhetos Palavras-chave: Variedades; Disease; Resistance; Bananicultura; Banana; Doença; Resistência; Varieties.
Ano: 1997 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/688078
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Virulence pattern of Pyricularia grisea isolates from farmers' fields on newly released upland rice cultivars Trop. Plant Pathol.
Araújo,Leila G.; Prabhu,Anne S.; Silva,Gisele B. da.
The virulence pattern of the isolates of Pyricularia grisea from commercial fields of the upland rice (Oryza sativa) cultivars 'Primavera' and 'BRS Bonança' was analyzed. A hundred and seventy monoconidial isolates of the pathogen virulent to 'Primavera' and 139 to 'BRS Bonança' collected from eight fields, during two years (2001-2003) were tested, under greenhouse conditions, on six newly released rice cultivars. Differences in virulence pattern were observed in pathogenic populations of 'Primavera' and 'BRS Bonança'. Isolates with virulence to improved cultivars were common in samples from farmers' fields in the absence of aloinfection. The virulence frequency of P. grisea isolates collected from 'Primavera'' to cultivars 'BRS Vencedora', 'BRS Colosso',...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa; Magnaporthe grisea; Rice blast; Physiologic races; Resistance.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000600009
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Vulnerabilidade dos pequenos agricultores em relação as tecnologias de convivência com a seca: um estudo de caso. Infoteca-e
CAVALCANTI, N. de B.; OLIVEIRA, C. A. V.; BRITO, L. T. de L..
Os pequenos agricultores da regiao semi-arida do Nordeste brasileiro tem, na agricultura de subsistencia ou familiar, sua principal fonte de renda. Estes agricultores sao bastante vulneraveis as condicoes agrossocioeconomicas e climaticas da regiao e, sobretudo, em relacao as tecnologias desenvolvidas pela pesquisa agricola para a convivencia com a seca. Este trabalho teve como objetivos identificar algumas tecnologias de convivencia com a seca e verificar a vulnerabilidade dos pequenos agricultores em relacao a estas tecnologias.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Convivência; Adoção; Resistance; Adoption; Small farmers; Natural resource.; Recurso natural; Pequeno Produtor; Seca; Tecnologia.; Drought; Technology..
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131732
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Weather, cultivar and density-dependent processes influence on aphid in alfalfa Bragantia
Silva,Alexandre de Almeida e; Varanda,Elenice Mouro; Rassini,Joaquim Bartolomeu.
It is important to understand the effects of weather, insect density and plant cultivar on insect abundance to predict and prevent crop production loss. The present work investigated the influence of such factors on aphid in alfalfa during one year (short term). Data was collected from September/1997 to August/1998 at Canchin Farm (CCPSE-EMBRAPA), São Carlos, State of São Paulo, Brazil. Weather conditions had, in general, little effect on the variation of aphid populations, but Therioaphis maculata abundance was negatively correlated to humidity. Moreover, high maximum temperatures and low levels of rainfall possible favored T. maculata high abundance on Crioula and P3 cultivars. Therefore, appropriate management of this species is required during hot and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Herbivory; Hemiptera; Medicago sativa; Resistance; Population dynamics.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052007000200012
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Worms – what’s new: some recent developments in worm control in ruminants and camelids AgEcon
Love, Stephen.
Special Edition Sheep and Cattle Production in New South Wales
Tipo: Article Palavras-chave: Worms; Faecal egg counting; Integrated parasite management; Resistance; Farm Management.
Ano: 2011 URL: http://purl.umn.edu/121462
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Таксономический состав гетеротрофных бактерий Одесского прибрежья, устойчивых к тяжелым металлам IBSS Repository
Иваница, В. А.; Бухтияров, А. Е..
Из прибрежных вод Одесского залива - Нефтяной гавани, пляжей “Дельфин” и “Дача Ковалевского” изолированы штаммы доминирующих гетеротрофных грамотрицательных бактерий с фоновыми и высокими уровнями устойчивости к ионам Pb2+, Cd2+ и Hg2+. Изучение фенотипических признаков выделенных штаммов бактерий позволило отнести подавляющее их большинство к родам Vibrio, Pseudomonas, Aeromonas и Enterobacter. Массовое бактериальное население в исследованных районах представлено в основном видами Vibrio alginolyticus, V. campbellii, V. harveyi, V. natriegens, V. nereis, Pseudomonas nautica, P. stutzeri, Enterobacter agglomerans, Aeromonas veronii, устойчивые к свинцу - видами Vibrio campbellii, V. harveyi, V. natriegens, V. nereis, Pseudomonas nautica, Enterobacter...
Tipo: Journal Contribution Palavras-chave: Гетеротрофные морские бактерии; Таксономия; Устойчивость; Ионы Pb2+; Cd2+; Hg2+; Черное море; Heterotrophic marine bacteria; Taxonomy; Resistance; Ions Pb2+; Black Sea Taxonomy Taxonomy http://aims.fao.org/aos/agrovoc/c_7631.
Ano: 2004 URL: http://repository.ibss.org.ua/dspace/handle/99011/95
Registros recuperados: 255
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