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| Registros recuperados: 111 | |
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| FIGUEIRA,Luanda de Paula; SOARES,Fabiane Veloso; JÚNIOR,Roberto Daibes NAIFF; VINHOTE-SILVA,Alana Cristina; SILVA,Susi Simas da; ESPIR,Thaís Tibery; NAIFF,Maricleide de Farias; GOMES,Luis Henrique Monteiro; MOREIRA,Flávia Regina Almeida Campos Naief; FRANCO,Antonia Maria Ramos. |
| ABSTRACT Few cases of human cutaneous leishmaniasis (CL) caused by Leishmania naiffi were described in the medical literature. The aim of this study was to report and analyze new cases of L. naiffi in the period between the years 1992 to 2011. The strains were characterized by isoenzyme analysis. All patients assisted had small lesions; ranging from 1.0x1.0 mm and 13.5x11.5 mm. The lesions observed were widely distributed: 55.5% on the lower limb, 5.5% in the abdominal area, 16.6% on upper limb and 22.2% in upper limb and back. Seventy-two percent of patients had ulcerated lesions. Clinical course of the disease varied from 1 to 10 months. According to gender, most infected individuals were men (83.3%). The patients came from Amazonas (10), Pará (01) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: American Tegumentary Leishmaniasis; Leishmania naiffi; Characterization; Experimental stations; Lutzomyia. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000100047 |
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| Andrade, Renata Aparecida de; UNESP - Jaboticabal/SP; Lemos, Eliana Gertrudes de Macedo; UNESP - Jaboticabal/SP; Martins, Antonio Baldo Geraldo; UNESP - Jaboticabal/SP; Paula, Rinaldo César de; UNESP - Jaboticabal/SP. |
| Em certas espécies vegetais, a distinção entre variedades pode ser realizada com base em aspectos morfológicos das plantas, o que permite a identificação mesmo quando não apresentam flores e/ou frutos. Diante disso, realizou-se o presente trabalho cujo objetivo foi a caracterização morfológica e o agrupamento de plantas de rambutan. Foram avaliados: altura da planta (cm), diâmetro e geometria da copa (entre linhas e entre plantas, em cm), diâmetro do tronco (cm) e disposição dos ramos no tronco, tamanho de folhas e folíolos (comprimento e largura, em cm), número de folíolos, comprimento da ráquis (cm), comprimento do pecíolo (cm), área foliar (cm2), vigor das plantas, sensibilidade ao frio, formato dos folíolos, pilosidade, coloração dos folíolos (faces... |
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Palavras-chave: 5.01.03.04-0 Produção de Mudas Nephelium lappaceum; Morfologia; Caracterização fitotecnia Nephelium lappaceum; Morphology; Characterization. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/890 |
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| Costa, Geraldo Márcio da; UFLA; Paiva, Luciano Vilela; UFLA; Piccoli, Roberta Hilsdorf; Universidade Federal de Lavras; Figueiredo, Demétrio Junqueira; Universidade Federal de Lavras; Pereira, Ulisses de Pádua; UFLA; Silva, Nivaldo da; EV-UFMG. |
| Evaluation of a simplified key for the identification of coagulase-positive Staphylococcus isolated from bovine mastitis. Three hundred fourty four strains of coagulase-positive Staphylococcus (CPS), isolated from mastitis cases, underwent phenotypic and genotypic tests to evaluate the efficiency of a simplified key, based on phenotypic tests for the discrimination of these microorganisms. The tests consisted of amplification of the femA gene and hemolysis in blood agar, production of acetoin and fermentation of maltose, mannitol and trehalose. Strains that showed negative results in the amplification test of the femA gene or that were not identified as Staphylococcus aureus (S. aureus) by phenotypic tests were tested with the APISTAPH kit... |
| Tipo: Pesquisa laboratorial |
Palavras-chave: 5.05.02.03-4 mastitis pathogens; Characterization; Coagulase test; PCR; Biochemical tests Doenças Infecciosas dos Animais mastitis pathogens; Characterization; Coagulase test; PCR; Biochemical tests. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6276 |
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| Miranda, Ordilena Ferreira de; de Souza, Saulo Eduardo Xavier Franco; Milan, Rodrigo José; Bueno, Aline Borges; Almeida, Marcilio de. |
| Psychotria viridis Ruiz & Pav. (Rubiaceae) occurs naturally throughout the Amazon and it is traditionally used by indigenous communities, being incorporated into religious use in urban contexts over the last few decades. It is known and cultivated in many regions of South America for possessing valuable bioactive alkaloids. In this paper, we described P. viridis leaf morphology, anatomy and histochemistry from three populations cultivated in the southeastern Brazil, in order to identify possible adaptations to local environment and management. All plants presented terminal stipules and basic morpho-anatomical patterns of leaves, consistent with most species of the genus, as heterogeneous dorsiventral mesophyll, uniseriate epidermis, presents large... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Characterization; Alkaloid; Trichomes; Glandular duct; Domatia. characterization; Alkaloid; Trichomes; Secretory duct; Domatia.. |
| Ano: 2020 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/50369 |
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| Peixoto, Ferdyanne Beatriz Sabóia; Peixoto, Jean Charles da Cunha; Assunção, Enedina Nogueira de; Peixoto, Elise Miranda; Pereira, José Odair; Astolfi-Filho, Spartaco. |
| Serratia marcescens is a Gram-negative bacillus, anaerobic facultative belonging to the family Enterobacteriaceae. S. marcescens strains are able to grow in the presence of different xenobiotic compounds, among them, petroleum and heavy metals. Xenobiotic resistant strains develop concomitant resistance to multiple antibiotics, referred to as co-resistance. The AMS212 strain was submitted to the microplate qualitative DCPIP - redox 2,6 dichlorophenol indophenol method. The quantitative test was carried out in Erlenmeyer flasks, followed by the change of color with the absorbance readings, trough the colorimetric method. The antibiotic resistance profile was evaluated by the Kirby-Bauer method. In the qualitative assay, the AMS212 strain altered the color... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbiologia 2.12.00.00-9 biodegradation; Characterization; DCPIP; Antimicrobial resistance. Microbiologia. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/36223 |
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| I., Manta H.; D., James D.; I., Awu J.. |
| Green house effect and ozone layer depletion due continuous environmental pollution from fossil fuel has speed up the quest for search of alternative energy fuel. In recent year, biofouls has attracted much attention as a reliable substitute to fossil fuel. The objective of this study was to evaluate and characterize biofuel produced from Egusi vegetable oil by applying standard method of transesterification. This study was carried out at Processing and Storage Engineering Departmental (PSED) laboratory of National Centre for Agricultural Mechanization (NCAM), Ilorin Kwara State, Nigeria. The results of the proximate characterization of the produced Egusi vegetable oil shows crude protein, crude fibre, ether extract, moisture content, ash content and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egusi Vegetable Oil; Characterization; Transesterification; Methyl Esters; Biofuel. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6205 |
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| Occhiuto,P.N; Peralta,I.E; Asprelli,P.D; Galmarini,C.R. |
| Paprika production is concentrated in Northwestern Argentina, where around 1500 ha are annually grown. Farmers mainly from Andean valleys, maintain their local landraces or “criollas” under different environmental conditions, using their farming traditions and selection criteria. These traditional varieties represent valuable genetic resources for conservation and selection of agronomical and quality traits. Between 2005 and 2007 eight collecting trips were made to Northwestern Argentina in order to recover local germplasm. As a result, five hundred new vegetable seed samples have been incorporated into the Germplasm Bank. Among these accessions 32 belong to Capsicum, the majority for paprika production, that were evaluated in field... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum annuum; C. baccatum; Germplasm; Characterization; Pungency; Pre-breeding. |
| Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-298X2014000200002 |
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| GUIMARÃES,ZULMIRA A.S.; DAMATTA,RENATO A.; GUIMARÃES,RENAN S.; FILGUEIRA,MARCELLO. |
| ABSTRACT With the aim of introducing permanent prostheses with main properties equivalent to cortical human bone, Ti-diamond composites were processed through powder metallurgy. Grade 1 titanium and mixtures of Ti powder with 2%, 5% and 10 wt% diamond were compacted at 100MPa, and then sintered at 1250°C/2hr/10-6mbar. Sintered samples were studied in the point of view of their microstructures, structures, yield strength and elastic modulus. The results showed that the best addition of diamonds was 2 wt%, which led to a uniform porosity, yield strength of 370MPa and elastic modulus of 13.9 GPa. Samples of Ti and Ti-2% diamond were subjected to in vitro cytotoxicity test, using cultures of VERO cells, and it resulted in a biocompatible and nontoxic composite... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomaterials; Titanium; Diamond; Sintering; Characterization; Biocompatibility.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000603111 |
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| BARRA,BRENO; MOMM,LETO; GUERRERO,YADER; BERNUCCI,LIEDI. |
| This paper discusses the importance of studies on materials known as fillers from different mineral origins, used in asphalt mixes, specifically in the formulation of mastics. The research was carried out on samples of limestone and granite rock filler and asphalt binder (50/70). The samples were evaluated through semiquantitative chemical analyses by X-ray fluorescence, granulometry by low angle laser emission, scanning electron microscopy, softening point tests, penetration tests, and aggregate-asphalt binder and aggregate-mastic adhesion tests. The results highlighted convergent trends, indicating that the active behavior of the fillers in the mastic formulation is not related to the size of the particles, but rather to their form, surface texture,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Characterization; Fillers; Granite; Limestone; Bituminous mastics. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000200995 |
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| BAKOUCH,HASSAN S. |
| Abstract A new discrete distribution is introduced. The distribution involves the negative binomial and size biased negative binomial distributions as sub-models among others and it is a weighted version of the two parameter discrete Lindley distribution. The distribution has various interesting properties, such as bathtub shape hazard function along with increasing/decreasing hazard rate, positive skewness, symmetric behavior, and over- and under-dispersion. Moreover, it is self decomposable and infinitely divisible, which makes the proposed distribution well suited for count data modeling. Other properties are investigated, including probability generating function, ordinary moments, factorial moments, negative moments and characterization. Estimation of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Characterization; Discrete distributions; Estimation; Vuong test statistic; Mixture distributions; Thunderstorms data. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602617 |
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| OLIVEIRA,ANTÔNIA S. DE; LÓSSIO,CLÁUDIA F.; RANGEL,ANNE J.; MARTINS,MARIA G.Q.; NASCIMENTO,FERNANDO E.P. DO; ANDRADE,MARIA L.L. DE; CAVADA,BENILDO S.; LACERDA,SÍRLEIS R.; NASCIMENTO,KYRIA S. DO. |
| ABSTRACT Freshwater algae are rich sources of structurally biologically active metabolites, such as fatty acids, steroids, carotenoids and polysaccharides. Among these metabolites, lectins stand out. Lectins are proteins or glycoproteins of non-immune origin which bind to carbohydrates or glycoconjugates, without changing ligand structure. Many studies have reported on the use of Spirogyra spp. as effective bioindicators of heavy metals; however, reports on Spirogyra molecular bioprospecting are quite limited. Therefore, this study aimed to detect, isolate, purify and characterize a lectin present in the freshwater green algae Spirogyra. Presence of the lectin protein in the extract was detected by hemagglutination assays. Subsequently, the protein extract... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Algae; Characterization; Lectin; Purification. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502113 |
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| Pereira,C.G.; Saraiva,G.L.; Santos,M.R.; Assao,V.S.; Fietto,J.L.R.; Bressan,G.C.; Almeida,M.R.; Moreira,M.A.S.; Silva Júnior,A.. |
| RESUMO O vírus da bronquite infecciosa (IBV) é um importante patógeno respiratório presente na avicultura comercial e tem provocado grandes perdas econômicas em todo o mundo. A vacinação é realizada pela indústria produtora de aves, mas continuam surgindo novos sorotipos e variações antigênicas, dificultando o controle de IBV. Nós realizamos uma caracterização molecular de uma cepa de IBV obtida diretamente de tecidos e comparamos com a mesma cepa que havia sido passada três vezes em ovo embrionado. Nós mostramos uma variação significante na sequência viral depois de ter sido isolada em ovo embrionado. |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Infectious bronchitis virus; Isolation; Characterization; Stability. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000401333 |
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| Rodrigues,Plínio Ribeiro; Silvério,Tatiane Aparecida Barroso; Druzian,Janice Izabel. |
| Abstract Polymers are materials of pronounced importance in the modern world, since they are massively present in everyday life, especially in the form of packaging. However, most of these materials are derived from non-renewable sources and their disposal generates large volumes of waste, which is extremely damaging to natural environments. In this context, microbial biopolymers appear as a powerful alternative in the substitution of several applications of synthetic plastics, causing less harm to the environment, as they are biodegradable and produced from renewable sources. In this study, evaluation and characterization of polyhydroxyalkanoates (PHAs) produced by Cupriavidus necator (IPT 026 and IPT 027) and Burkholderia cepacia (IPT 119 and IPT 400),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crude glycerol; Biosynthesis; Polyhydroxyalkanoates; Characterization. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100209 |
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| Souza,Vanessa Ribeiro de; Silva,Ana C. G.; Pinotti,Laura Marina; Araújo,Heloísa Sobreiro Selistre; Giordano,Raquel de Lima Camargo. |
| The purpose of this work was to characterize the enzyme penicillin G acylase (PGA) produced by Bacillus megaterium. Purification of the enzyme by ultra/diafiltration did not allow the detection of the PGA band by SDS-PAGE electrophoresis due to the high content of remaining proteins. However, using the DNA of the microorganism, it was possible to replicate the genes of the two B. megaterium PGA reported in literature, showing that the enzyme consisted of two sub-units, having 245 and 537 amino acids each and an average molecular mass of 26950 and 59070 Da, respectively. The parameters studied were: 1) the influence of temperature in the 25-60(0)C range, 2) pH in the 5-10 range and 3) substrate concentration, this was tested to obtain results on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Penicillin G acylase; Bacillus megaterium; Characterization. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000400013 |
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| Registros recuperados: 111 | |
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