oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 45 )

2018 ( 315 )

2017 ( 332 )

2016 ( 360 )

Custom range...

Search Results: 1 - 10 of 178564 matches for " Gabriela Ferraz de; "
All listed articles are free for downloading (OA Articles)
Page 1 /178564
Display every page Item
Qualidade tecnológica em diferentes por??es do colmo e produtividade da cana-de-a?úcar sob efeito de maturadores
Leite, Glauber Henrique Pereira;Crusciol, Carlos Alexandre Costa;Siqueira, Gabriela Ferraz de;Silva, Marcelo de Almeida;
Bragantia , 2010, DOI: 10.1590/S0006-87052010000400011
Abstract: the objective of this research was to evaluate the technological quality of sugarcane, variety rb855453, in different portions of the stalks after the application of ripeners with distinct mechanisms of action and the effects on productivity and agricultural contribution margin. the experimental design was the completely randomized block with six replications. the treatments consisted of the application of three ripeners (two of them within the class of growth inhibitors - glyphosate, sulfometuron methyl) and one within the class of growth retardants (kno3), with the addition 1% of vegetable oil, and the control (natural ripening). treatments with kno3 and sulfometuron methyl, as well as control, did not cause any damage to the development of stalks. treatments with glyphosate and sulfometuron methyl increased technological quality of the raw material, evaluated up to 35 days after application; this contributed to the ripening process and allowed harvest to occur in advance when compared to the control (natural ripening) and the treatment with kno3, increasing the profit. treatment with glyphosate reduced productivity of stalks, but increased pol in cane in the superior portion of the stalks, which increased cutting height.
Caracteriza??o física e química de acerolas provenientes de diferentes regi?es de cultivo
Brunini, Maria Amalia;Macedo, Naiara Barbosa;Coelho, Cristina Vieira;Siqueira, Gabriela Ferraz de;
Revista Brasileira de Fruticultura , 2004, DOI: 10.1590/S0100-29452004000300027
Abstract: the physical and chemical characteristics of west indian cherry from 8 regions of cultivation in s?o paulo state were evaluated by this paper. the fruits were harvested from march to april 2003. the results were evaluated in an experimental delineation totally randomized. the average results of weight varied from 3.56 to 7.29g and it was highest in west indian cherry fruits harvested in orchards from guariba, guará and pioneiros region. the average sharp index and diameter oscillated from 0.86 to 1.24 and 2.02 to 2.37cm, respectively. the west indian cherry fruits from orchards situated in bonfim paulista and aparecida do salto presented the highest red color. the fruit firmness varied from 144.73 to 246.00 n.cm-2, and the fruits harvested in orchards situated in bonfim paulista, aparecida do salto and guará region presented the smallest fruits firmness. the obrix ranged from 5.67 to 8.22, and it was highest in west indian cherry fruits harvested in orchards from porto ferreira and guará region suggesting a small potential for postharvest conservation. the ph varied from 2.39 to 4.00, the titrable acidity, expressed as g of malic acid per 100g, ranged from 0.504 to 1.112 and the soluble sugar content ranged from 3.06 to 8.42g of glicose per 100g. the west indian cherry fruits harvested in orchards situated in bonfim paulista, aparecida do salto and ituverava region showed the highest ascorbic acid value.
Estruturas de governan a interna e a capacidade de inova o em pequenas firmas brasileiras de torrefa o e moagem de café Estructuras de gobernanza interna y capacidad de innovación en peque as empresas brasile as productoras de café tostado y molido Internal governance structures and capacity for innovation in small Brazilian coffee roasting and grinding firms
Gabriela Feresin Jardim,Maria Sylvia Macchione Saes,Luiz Ferraz de Mesquita
Revista de Administra??o (S?o Paulo) , 2013,
Abstract: Na pesquisa relatada neste artigo s o investigadas quais as combina es de estruturas de governan a interna (mercado, burocrática e comunitária) que possibilitam mais capacidade de inova o de produto nas pequenas firmas. Neste estudo, inspirado nos trabalhos de Grandori e Furnari (2008; 2010), tem-se como hipótese que a capacidade de inova o ocorre de modo mais consistente nas firmas que adotam uma estrutura de governan a interna multimodal. Essa hipótese foi testada por meio de um survey com 80 indústrias brasileiras de torrefa o e moagem de café(1). Para encontrar as combina es de estruturas, foi utilizada a análise comparativa qualitativa (QCA) no software fs/QCA vers o 2.0 (RAGIN, 2008). Como resultado, verificou-se que a estrutura de governan a interna multimodal - que combina práticas de incentivos monetários, burocráticas e comunitárias - apresentou resultados mais consistentes para a inova o das pequenas firmas de torrefa o. Esses resultados, ao permitirem identificar os requisitos organizacionais que produzem mais possibilidades de inova o, podem ajudar a tra ar a es de políticas públicas e privadas para as empresas brasileiras, de modo a melhorar sua taxa de inova o e a competitividade em seus mercados. En este estudio se analizan las combinaciones de estructuras de gobernanza interna (mercado, burocrática y comunitaria) que permiten una mayor capacidad de innovación de productos en peque as empresas. Con base en los estudios de Grandori y Furnari (2008; 2010), se tiene como hipótesis que la capacidad de innovación ocurre con más consistencia en las empresas que adoptan una estructura de gobernanza interna plural. Se puso a prueba esta hipótesis por medio de una investigación con 80 industrias brasile as productoras de café tostado y molido. Con el fin de encontrar las combinaciones de estructuras, se utilizó el análisis comparativo cualitativo en el software fs/QCA versión 2.0 (RAGIN, 2008). Como resultado, se verificó que las estructuras de gobernanza interna plural, que combinan prácticas de incentivos monetarios, burocráticos y comunitarios, presentaron resultados más consistentes para la innovación de las peque as empresas de tostado. Tales resultados, al permitir identificar los requisitos organizacionales que producen mayor innovación, pueden ayudar a definir acciones de políticas públicas y privadas para las empresas brasile as, con el fin de mejorar su nivel de innovación y competitividad en sus mercados. This study investigates which combinations of internal governance structures (market, bureaucratic, and community) allow th
EFEITO DE PRODUTOS QUíMICOS NA QUALIDADE DE KIWIS ‘HAYWARD’ MINIMAMENTE PROCESSADOS
Maria Amália Brunini,Gabriela Ferraz de Siqueira,Joana Diniz Rosa da Silva
Nucleus , 2005,
Abstract: The objetive of this work was to evaluate the quality of minimally processad kiwi ‘Hayward’treated with acid ascorbic solution at 1 %, citric acid solution at 1 %, calcium chloride solution 1% and water bidistilled.After the minimally product were packaged into polyethylene therephtalate trays covered with stretchingand sticking PVC plastic film with thickness of 12 m. The trays of each treated were stored at 5 ± 1oC, with 85 –90% UR and at 9 ± 1 o C, with 85 – 90% of UR. The products were evaluated through the parameters: weightloss, titrable acidity, soluble solids, pH, appearance, vitamin C, soluble carbohydrate, respiratory rate and total andfecal coliformes. Taking into considerations the results obtained it is observed that the treated products witch calciumchloride solution at 1% and stored at 9± 1 oC showed the smallest weight loss and the best appearance at the end ofstorage; the treated products with calcium chloride solution at 1% and stored at 5 ± 1oC showed highest vitamin Ccontent; the soluble carbohydrate content increased during storage time, compared with the value obtained in theintact fruit; the respiration rate increased during storage time; the microbiological analysis didn’t detect fecal total coliforms, in the kiwi minimally processed; the use of calcium chloride solution at 1% was that better because can tomaintain the kiwi minimally processed quality.O objeto deste trabalho foi avaliar a qualidade de kiwis ‘ Hayward’ minimamente processados etratados com solu o de ácido ascórbico a 1%, solu o de ácido cítrico 1%, solu o de cloreto de cálcio 1% e águabi-destilada, e, posteriormente, acondicionados em bandejas de polietileno tereftalato, revestidas extremamente comfilme plástico de cloreto de polivinila. Esticável e auto aderente, de 12 m de espessura, durante armazenamento a 5± 1oC, com 85 – 90% UR 9 ± 1 o C, com 85 – 90% de UR. Os produtos foram avaliados quanto à perda de massafresca, acidez titulável, sólidos solúveis totais, vitamina C, carboidratos solúveis, taxa respiratória e teores decoliformes totais e fecais. Os kiwis minimamente processados, tratados com solu o de cloreto de cálcio a 1%, earmazenamento a 9 ±1 oC, apresentam as menores perdas de massa fresca e melhor aparência ao 4 o dia dearmazenamento; os produtos tratados com a solu o de cloreto de cálcio a 1%, armazenados a 5 ± 1oC, apresentaramos maiores teores de vitamina C; os teores de carboidratos solúveis aumentaram, no decorrer do armazenamento, emrela o ao valor obtido no fruto íntegro; a taxa respiratória aumentou durante o armazenamento; a análisemic
INFLUêNCIA DE FORMATO DE CORTE E áCIDO ASCóRBICO EM MEL O MINIMAMENTE PROCESSADO
BRUNINI, Maria Amália,OLIVEIRA, Ant?nio Luís,SIQUEIRA, Gabriela Ferraz de,COELHO, Cristina Vieira
Nucleus , 2004,
Abstract: The aim of the present work was to evaluated the influence of three types of cut shapepreparation (cube, slice and retail) on the conservation of minimally processed products of yellow 'Valenciano'melon, treated or no with ascorbic acid solution at 1%. After preparation, the products were conditioned intoterephthlate polyethylene trays covered with a stretchable polyvinyl chloride (PVC) film with 0.014mm ofthickness, and stored at 8 1°C with 85-90% R.U. Every two days, the minimally products were evaluated withregarding to soluble carbohydrates content, solids soluble content and titrable acidity relation, pulp darkening,rotness development and sensorial characteristics. The cut shape permited obtain minimally product with goodacceptance until seven days of storage, the sensorial acceptance was similar to all minimally products,independent of cuting and use of ascorbic acid solution; the soluble carbohydrate and pulp darkening wereinfluenced by cut shap and treatment with ascorbic acid solution at 1%.O objetivo deste trabalho foi avaliar o efeito de formato de corte (cubo, fatia e retalho) naconserva o de produtos minimamente processados de mel o 'Valenciano' amarelo, tratados ou n o com solu ode ácido ascórbico a 1%. Após o preparo, os produtos minimamente processados foram acondicionados embandejas de polietileno tereftalato, revestidas externamente com filme plástico de PVC de 0,014mm deespessura, e armazenados a 8±1oC, com 85% a 95% de UR. A cada 2 dias, os produtos minimamenteprocessados foram avaliados quanto aos teores de carboidratos solúveis, rela o sólidos solúveis totais e acideztotal titulável, escurecimento, desenvolvimento de podrid o e características sensoriais. Os tipos de formato decorte empregados no processamento mínimo de mel o permitiram produtos com boa aceitabilidade até o sétimodia de armazenamento a 8±1oC; a aceita o sensorial foi semelhante para todos os produtos minimamenteprocessados, independentemente do tratamento ou n o com solu o de ácido ascórbico 1%; os teores decarboidratos solúveis e a colora o da polpa foram influenciados pelo formato de corte e tratamento com solu ode ácido ascórbico a 1%.
Stable carbon and nitrogen isotopic fractionation between diet and swine tissues
Nardoto, Gabriela Bielefeld;Godoy, Patricia Barboza de;Ferraz, Epaminondas Sansigolo de Barros;Ometto, Jean Pierre Henry Balbaud;Martinelli, Luiz Antonio;
Scientia Agricola , 2006, DOI: 10.1590/S0103-90162006000600012
Abstract: naturally occurring stable isotope ratios can be a powerful tool in studies of animal nutrition, provided that the assumptions required for dietary reconstruction are validated by studies such as the one presented here. the objective of this study was to document the magnitude of isotopic fractionation between swine diet and their different tissues. for this, the isotopic ratios of carbon and nitrogen of the diet and selected tissues (hair, nail, liver, muscle, fat and cartilage) were determined. the d13c and d15n of the diet were -15.9? and 1.3?, respectively, and all d15n of swine tissues were 2.2 to 3.0? enriched in 15n in relation to the diet. little variation in d15n occurred among tissues, with exception to liver that was less enriched in 15n than the nail. nail and hair presented no 13c enrichment relative to diet. cartilage was ~1.0? enriched in 13c as compared to diet. liver and muscle were on average 2.1? more depleted in 13c in relation to diet as well as fat tissues. some of the c and n isotope ratios of swine tissues differed in organs, but the isotopic fractionation trends among tissues appears to be similar to other mammals. therefore our data provide a good baseline to interpret stable isotope patterns in domestic mammals (such as swine) in controlled or semi-controlled experiments.
Antioxidant intake among Brazilian adults - The Brazilian Osteoporosis Study (BRAZOS): a cross-sectional study
Marcelo Medeiros Pinheiro, Rozana Ciconelli, Gabriela Chaves, Luana Aquino, Claudia Juzwiak, Patrícia de Souza Genaro, Marcos Ferraz
Nutrition Journal , 2011, DOI: 10.1186/1475-2891-10-39
Abstract: The sample comprised 2344 individuals aged 40 years or older from 150 cities and was based on a probabilistic sample from official data. The research was conducted through in-home interviews administered by a team trained for this purpose. Dietary intake information was obtained through 24-h recall. The Nutrition Data System for Research software program was used to analyze data on the intake of vitamins A, C and E, selenium and zinc, which was compared to Dietary Reference Intakes (DRIs). Differences in intake according to sex, anthropometrics, socioeconomic status and region were also evaluated. The SPSS statistical package (version 13) was used for the statistical analysis. P-values < 0.05 were considered significant.Higher proportions of low intake in relation to recommended values were found for vitamin E (99.7%), vitamin A (92.4%) and vitamin C (85.1%) in both genders. Intake variations were found between different regions, which may reflect cultural habits.These results should lead to the development of public health policies that encourage educational strategies for improving the intake of micronutrients, which are essential to overall health and prevention of non-communicable diseases.In the last 50 years, Brazil has gone through changes in eating habits, with a greater intake of processed foods, meat, oil and vegetable fat as well as a low consumption of fruit, vegetables and cereals [1-3]. These aspects, together with a sedentary lifestyle, have contributed toward a greater prevalence of obesity and other non-communicable chronic diseases [4] as well as higher disability and mortality rates [5], especially those related to cardiovascular disease [4-6].Previous national data demonstrate that only 2 to 3% of total food intake corresponds to fruit, legumes and vegetables [2], which are important sources of nutrients with antioxidant functions. These percentages correspond to approximately one third of the internationally recommended intake for the prevention
Avalia??o de diploides de bananeira (Musa spp.) quanto à tolerancia a salinidade
Silva, Roberta Lane de Oliveira;Martins, Luiza Suely Semen;Gomes, Eline Waked Ferreira;Ferraz, Gabriela de Morais Guerra;Silva, Sebasti?o de Oliveira e;Willadino, Lilia;
Revista Brasileira de Fruticultura , 2009, DOI: 10.1590/S0100-29452009000400023
Abstract: the salinity is a common factor of abiotic stress that seriously affects the agricultural production where it is found. one of the strategies to promote reincorporation of salinity areas and the productivity increasing consists in development and selection of tolerant genotypes, which allows parental identification for crossings. this research aimed to identify the salinity tolerance among banana diploid genotypes to be used in future works of genetic improvement to saline soils of brazilian northeast region. nine banana diploid genotypes (aa) were evaluated for growth variables as leaf area, height, diameter of pseudostem, leaves number, weight of fresh and dry matter. during 21 days, the plants were treated with 0 and 100 mm of nacl, in an entirely randomized experimental delineation with three repetitions. after 21 days, the determination of fresh matter weight was released using analytic balance. the attainment of the each plant dry matter weight from foliar limbo, pseudostem and root+rizome was carried out through drying in greenhouse at 65oc until constant weight. the tjau lagada genotype, which suffered minor reduction of leaf area, can possibly show a higher production despite other genotypes analyzed in this study. the genotype 0116-01, presenting a greater salinity tolerance, could be used in future crossings providing genes to be incorporated in productive cultivars by improvement programs which aims the adaptive cultivars to brazilian northeast saline soils.
Caracteriza??o morfológica e molecular de acessos de feij?o-fava (Phaseolus lunatus L.)
Guimar?es, Walma N. R.;Martins, Luiza S. S.;Silva, Edson F. da;Ferraz, Gabriela de M. G.;Oliveira, Francisco J. de;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2007, DOI: 10.1590/S1415-43662007000100005
Abstract: the objective of this work was to analyze genetical diversity of twenty-two accessions of lima-beans (phaseolus lunatus l.), coming from the states of ceará, paraíba and pernambuco, brazil, part of the germoplasm collection of the agronomy department of federal rural university of pernambuco, by rapd markers, as well as to characterize fourteen of these genotypes by means of morphological markers. to characterize the genetic variability, sixty polymorphic loci were used. by the sample analysis the formation of two groups and four subgroups was observed and high genetic variability among the accessions was noticed. the genetically closer genotypes were fa-01 and fa-02, from ceará state, with 85% of similarity, and the less similar ones were fa-07 and fa-20, from ceará and pernambuco states, respectively, with 35.9% similarity. related to the morphological characterization, it was noticed that the genotype fa-13 in comparison to others presented higher values of seed weight, number of seeds per pod, length and width of pod, while the fa-16 genotype showed lower values for weight of one hundred seeds, very small seeds, lower number of pods per plant, lower length of pod and lower production of seed per plant.
Efeitos de meio de cultura, fontes de carbono e nitrogênio, pH e regime luminoso no crescimento de Mycosphaerella musicola
Montarroyos, Angélica Virgínia Valois;Coelho, Rildo Sartori Barbosa;Ferraz, Gabriela de Morais Guerra;Santos, R?mulo dos;Santos, Venézio Felipe dos;Andrade, Paulo Paes de;
Summa Phytopathologica , 2007, DOI: 10.1590/S0100-54052007000100014
Abstract: this work aimed the establishment of the best growth conditions of m. musicola mycelia in vitro through the analysis of the influence of different culture media (bda, bda/ifb, v8, v8/ifb, v8/caco3 and v8/caco3/ifb), combinations of carbon (dextrose, maltose, sucrose and xylose) and nitrogen (peptone, glycine, potassium nitrate and sodium nitrate) sources, medium ph values (6.8, 6.4, 5.7 and 4.9) and photoperiods (continuous darkness, alternating darkness/lightness and continuous lightness). at the end of the evaluation period, cultural parameters and the dry weights of colonies were annotated. bda/ifb, v8/ifb and bda culture media promoted the best mycelial growth. the experiments also demonstrated that dextrose and sucrose when combined with peptose as a nitrogen source, are the best carbon sources as they promoted the most vigorous mycelial growth. the use of bda/ifb culture medium, with its final ph adjusted to 5.7, and a photoperiod of continuous darkness was the best condition for the growth of m. musicola.
Page 1 /178564
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.