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Search Results: 1 - 10 of 86815 matches for " Mauro Gomes da Silva "
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Tramas e tessituras na Economia Solidária: uma análise da influência das rela es de pessoalidade na interinstitucionalidade da Economia Solidária
Brenno Gomes da Silva Mauro
Sociedade e Estado , 2009, DOI: 10.1590/s0102-69922009000200017
Abstract:
Evaluation of rational use of antimicrobial agents in a Brazilian intensive care unit  [PDF]
Fabiana Xavier Cartaxo Salgado, Tarquino Erastides Gavilanes Sanchez, Noriberto Barbosa da Silva, Hildeamo Bonifácio Oliveira, Mauro Karnikowski, Marg? Gomes de Oliveira Karnikowski
Health (Health) , 2014, DOI: 10.4236/health.2014.62028
Abstract: The present study sought to assess the rational use of antimicrobial agents in a Brazilian intensive care unit (ICU) and its association with antimicrobial resistance in elderly patients admitted to the unit. Results: Choice of empiric and sensitivity-guided therapy was inadequate in > 80% and 59% of cases respectively. Inadequate antimicrobial therapy, whether empiric or sensitivity-guided, was positively correlated with bacterial resistance (r = 0.316; p = 0.001). Sensitivity testing revealed a 46.5% resistance rate to eight out of the ten most commonly used antibiotics. Multiple drug-resistant organisms were found in 40.8% of patients. A significant increase was observed in the number of multidrug-resistant samples between 2006/2007 and 2008 (r = 0.41, p = 0.006), (r = 0.598, p = 0.001), (r = 0.688, p = 0.00). Conclusion: We found a high rate of antibiotic misuse in the study sample. Inadequate therapy was correlated with resistance to antimicrobial agents.
Synthesis of 1,4-naphthoquinone derivatives using 1,3-dipolar cycloaddition and Sonogashira reactions Síntese de derivados da 1,4-naftoquinona utilizando a rea o de cicloadi o 1,3-dipolar e a rea o de Sonogashira
Wilson Silva do Nascimento,Mauro Gomes da Silva,Ronaldo Nascimento de Oliveira,Celso Amorim Camara
Orbital : the Electronic Journal of Chemistry , 2010,
Abstract:
Synthesis of 1,4-naphthoquinone derivatives using 1,3-dipolar cycloaddition and Sonogashira reactions
Wilson Silva do Nascimento,Mauro Gomes da Silva,Ronaldo Nascimento de Oliveira,Celso Amorim Camara
Orbital : the Electronic Journal of Chemistry , 2010,
Abstract: Naphthoquinones are known according to their important bio-activities, such as their antitumoral and topoisomerase inhibition properties. From 2-azido (3) or 2,3-diacetylene-1,4-naphthoquinone (4) it was possible to obtain triazole derivatives (naphthoquinonic). This work describes the synthesis of two novel molecules, with triazole groups linked to 1,4-naphthoquinone using the 1,3-dipolar cycloaddition and Sonogashira reactions. The synthetic strategy followed two routes (Scheme 1). First, we synthesized the 2-bromo-1,4-naphthoquinone (2, yield 98%) by using Br2 and CH3CO2H, and then used it to obtain 2-azido-1,4-naphthoquinone (3, yield 62%) from compound 1, along with ethanolic solution (reflux) and NaN3. Finally, we prepared 1,2,3-triazole compounds (4a, b) by 1,3-dipolar cycloaddition, involving compound (3) and terminal acetylenes (phenylacetylene, a) and glycoside (b) using Cu(OAc)2 and ascorbate, under argon atmosphere. During the second step, 2,3-dibromo-1,4-naphthoquinone was prepared using Br2/CH2Cl2 at room temperature. From compound (5) it was possible to synthesize (6), catalyzed by Pd(PPh3)2Cl2/CuI/Et3N, under argon atmosphere, in 40% yield. The 1,3-dipolar cycloaddition reactions involving 2-azido-1,4-naphthoquinone (3) and alkynes (a, yield 23% and b, yield 30%) were conducted using the solvent system, (1:1) terc-BuOH/H2O/r.t/ 20 mol% of Cu(OAc)2 and sodium ascorbate, under stirring during 24 hours. The reaction involving 2,3-dibromo-1,4-naphthoquinone (5, yield 65%) and phenylacetylene was prepared using the solvent mixture (2:1) DMSO/CHCl3 and catalytic amount of CuI/Pd(PPh3)2Cl2. The final products were characterized by elemental analysis and spectrometric techniques (IR, NMR 1H and 13C). Two novel triazole compounds were synthesized from naphthoquinones by 1,3-dipolar cycloaddition from suitable 1,4-naphthoquinones obtained by Sonogashira couplings.
Parametros dendrométricos e correla??es com propriedades tecnológicas em um híbrido clonal de Eucalyptus urophylla x Eucalyptus grandis
Gon?alves, Fabricio Gomes;Oliveira, José Tarcísio da Silva;Silva, Gilson Fernandes da;Nappo, Mauro Eloi;Tomazelo Filho, Mario;
Revista árvore , 2010, DOI: 10.1590/S0100-67622010000500020
Abstract: wood quality is apparently associated with the dendrometric characteristics that are influenced by growth conditions. the aim of this study was the dendrometric characterization and realization of pearson correlations among some technological parameters in the clonal hybrid wood eucalyptus urophylla x eucalyptus grandis grown in three silvicultural extracts. the dendrometric data were analyzed by regression analysis. the results show that the hybrid presents similar behavior to other eucalypt of the same species grown in other places with sapwood thickness in e1 (coppice with 70 months and one thinning), with little variation along the stem. all evaluated trees presented, in general, a low taper along the stem with very little bark volume among the extracts. the pearson correlation studied nine dendrometric parameters, seven physical and three mechanical properties. the parameters were evaluated, longitudinally, in three meter sections along the stem and in the pith-bark position in the first two logs according to the pearson's correlation. the coefficients demonstrated a strong correlation among the properties, with basic density being highly correlated to the other characteristics and anisotropic coefficient, important in the process of sawing and drying wood, as well as sapwood thickness. the correlation to the height relationship wasn't significant to the linear and volumetric shrinkage. radial variation showed a good correlation among all the evaluated mechanical properties in the two first logs. on the other hand, the physical properties in the radial position didn't present significant correlations with tangential shrinkage.
Prevalência de baixo nivel de atividade física em crian?as pré-escolares
Barros, Simone Storino Honda;Lopes, Adair da Silva;Barros, Mauro Virgilio Gomes de;
Revista Brasileira de Cineantropometria & Desempenho Humano , 2012, DOI: 10.5007/1980-0037.2012v14n4p390
Abstract: physical activity (pa) in children has a decisive role in motor development and prevention of childhood obesity. the available evidence suggests that there is high prevalence of low levels of pa in children, but little is known about the level of pa in preschool children. the objective of this study was to identify the prevalence and the factors associated with low levels of pa in preschool children. this was a cross-sectional study performed in private schools in the municipality of olinda (state of pernambuco), with data collection through parent's face-to-face interviews. the study included 265 children (54.3% girls) with mean age of 4.9 years (sd=0.8). children who did not perform at least 60 minutes/day of outdoors physical activities were considered exposed to low levels of pa. data analysis was performed by logistic regression considering low level of pa as the outcome. the results showed that 65.3% (95%ci: 9.4-70.8) of children were classified as exposed to 'low level of pa'. analysis showed that higher parental education (or=2.41; 95%ci: 1.13-5.10), lack of space for playing at home (or=2.36; 95%ci: 1.17- 4.78), and attending school in the afternoon (or=2.92, 95%ci 1.55-5.49) or full-time (or=57.1, 95%ci 6.57-496.2) were associated with low levels of pa. preschoolers from families with higher number of children had lower likelihood of low level of pa (or=0.49; 95%ci 0.26-0.93). it can be concluded that the proportion of children exposed to low levels of pa is high compared to the results of similar studies and that parental and environmental factors are associated with physical activity level in preschool-aged children.
Potencialidades das regi?es brasileiras para instala??o de uma fábrica de celulose
Orlandini, Dario;Silva, Elizabeth Neire da;Valverde, Sebasti?o Renato;Gomes, José Mauro;
Revista árvore , 2011, DOI: 10.1590/S0100-67622011000600011
Abstract: the objective of this study was to classify, based on localization theory, the brazilian territory to its potential to attend the demands of a cellulose plant with annual production of 1.000.000 t year-1. four minimal requirements of the enterprise were considered for being potential indicators. the superposition of all maps showed regions with values ranging from 0 to 4, being classified as unviable (0), potentially low (1), potentially medium (2), good (3) and potentially excellent (4) for setting up the enterprise. the final analysis for the national territory enabled to identify 30.47% of its land as potentially excellent areas for setting up a cellulose plant, 34.36% as satisfactory potential, 11.54% as average, 23.63% as potentially low and 0% unviable. thus, it is concluded that brazil is endowed with great potential to attracting great part of the change in the axis of the world cellulose production from the northern to southern hemispheres. besides, which could impeling the regional economy with countless environmental improvements.
Importancia pericial dos registros odontológicos decorrentes de tratamento protético
Rhonan Ferreira da Silva,Niúsa Gomes Benta,Eduardo Daruge Júnior,Mauro Machado do Prado
Odonto , 2008,
Abstract: A documenta o odontológica produzida em decorrência das reabilita es protéticas possui caráter primordialmente clínico, pois possibilita a consulta sobre o estágio em que se encontram os procedimentos executados. Entretanto, em determinadas situa es, as informa es contidas nesta documenta o podem possuir relevante valor legal, possibilitando o esclarecimento de quest es judiciais nas diversas áreas do Direito. Nos casos de identifica o de indivíduos totalmente desdentados, o profissional deve ter o cuidado em registrar a maior quantidade de detalhes possíveis sobre as particularidades anat micas orofaciais do seu paciente e sobre os trabalhos protéticos efetuados, uma vez que os elementos dentários est o ausentes. Neste contexto, o presente trabalho tem como objetivo evidenciar a importancia pericial dos registros decorrentes de execu o de tratamento protético, por meio de um relato de caso, em que é ressaltada a importancia sócio-legal de se normatizar a identifica o das próteses dentárias. Enquanto o Conselho Federal de Odontologia n o estabelecer normas a serem observadas por Cirurgi es-dentistas e técnicos em prótese dentária, estes profissionais da Odontologia devem cumprir suas obriga es éticas e legais relacionadas ao registro de informa es acerca dos tratamentos realizados, visando resguardar o exercício profissional e subsidiar adequadamente os exames periciais em casos de pacientes desdentados.
Atributos físicos e químicos do solo de áreas sob Pastejo na Micro Regi?o do Brejo Paraibano
Santos, Jussara Telma dos;Andrade, Albericio Pereira de;Silva, Ivandro de Fran?a da;Silva, Divan Soares da;Santos, Edson Mauro;Silva, Ana Paula Gomes da;
Ciência Rural , 2010, DOI: 10.1590/S0103-84782010001200008
Abstract: the increased intensity of land use and declining native vegetation in northeastern brazil have led to degradation of natural resources and in particular to the decline of soil fertility.the present study aimed to assess changes in soil physical and chemical properties in secondary areas of native forest and pasture in the microregion of swamp paraiban. three areas were selected in the engenho mineiro property, whose land area was classified as alfissol, and represented by pasture grass brachiaria ssp which is being explorated for over 25 years with clear signs of degeneration and the other by a area of secondary native forest. the design was completely randomized in a split-plot with five replications. soil samples were collected from 0-10, 10-20 and 20-30cm. due to the unevenness of the area proceeded collect in line in curve level, 10.0m apart from each other. the physical attributes evaluated were: bulk density and particle, total porosity, degree of flocculation, and totality native clay, degree of flocculation, aggregate dry and wet mean weight diameter and determination of the distribution of macro and micro aggregates separated by dry and wet. for the chemical attributes were determined ph values in water and calcium, magnesium, phosphorus, potassium, aluminum, hydrogen + aluminum, and organic matter (om) for the areas and depths studied. the soils of, in general, showed low fertility. from the results, it was found that changes in the the original coverage cause an increase in ph and reduction in organic matter content. the area cultivated with pasture presented higher values of soil density, density of particles and reduction of total porosity. the change in the vegetation cover influenced the values of macro and micro aggregates in the studied environments. the use of segmentation by the toposequence positions in the landascape, use and depths, to the determine soil degradation, was efficient in evaluating the different depths of it. the management system
Qualidade fermentativa e caracteriza o químico-bromatológica de silagens da parte áerea e raízes de mandioca (Manihot esculenta Crantz) = Fermentation quality and chemical and bromatological characteristics of foliage and roots of silage cassava (Manihot esculenta Crantz)
Camilla Flávia Portela Gomes da Silva,Márcio dos Santos Pedreira,Mauro Pereira de Figueiredo,Fernando Salgado Bernardino
Acta Scientiarum : Animal Sciences , 2010,
Abstract: Foram avaliados os efeitos do emurchecimento e da inclus o de raízes (0, 15, 30 e 45% da matéria natural) sobre a composi o químico-bromatológica e parametros fermentativos de silagens da parte aérea da mandioca. O emurchecimento influenciou significativamente o teor matéria seca (MS), a densidade e o pH das silagens em todas asdoses de adi o de raízes. A inclus o destas elevou o teor de MS em 0,128 e 0,261%, a densidade em 1,79 e 4,54 kg m-3 e, reduziu o pH em 0,0007 e 0,0062, respectivamente nas silagens emurchecidas ou n o, a cada unidade percentual de adi o de raízes. A exce o dos teores de fibra detergente ácida (FDA) e lignina, todos os demais parametros apresentaram intera o significativa entre o emurchecimento e a inclus o de raízes. O emurchecimento aumentou em 4,52% os teores de FDA e 12,86% os de lignina, enquanto o incremento de raízes promoveu decréscimo linear de ambos. O acréscimo de raízes reduziu linearmente os valores de fibra em detergente neutro (FDN), enquanto o emuchercimento elevou-os. O teor de PB respondeu inversamente, apresentando valores mínimos de 8,99 e 11,03 e máximos de 18,01 e 20,9% da MS, respectivamente nas silagens sem e com emurchecimento. The effects of wilting and root inclusion (0, 15, 30 and 45% natural matter) on the chemical and bromatological composition coupled to silage fermentation parameters of cassava foliage silages were evaluated. Wilting affected significantly dry matter content (DM), density and pH values (p < 0.05) of silages at all root addition levels. Root inclusion increased silages DM contents by 0.128 and 0.261%; densities increased by 1.79 and 4.54 kg m-3; pH values were reduced by 0.0007 and 0.0062) respectively in wilted silages or not wilted ones for every included root percentage unit. All parameters, with the exception of acid detergent fiber (ADF) and lignin contents, showed significant interaction between wilting and root inclusion. Wilting increased ADF and lignin contents respectively by 4.52 and 12.86%, whereas root inclusion caused a linear decrease in both. Silage root addition decreased linearly neutral detergent fiber rates and conversely wilting increased them. The opposite occurred with crude protein contents, with minimum rates 8.99 and 11.03 and maximum ones 18.01 and 20.9% DM values, respectively in silages with and without wilting.
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