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Search Results: 1 - 10 of 75766 matches for " Martha Maria;Pinho "
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Efeitos de parametros de extrus?o nas propriedades físicas de produtos expandidos de inhame
Leonel, Magali;Mischan, Martha Maria;Pinho, Sheila Zambello de;Iaturo, Ricardo António;Duarte Filho, Jaime;
Ciência e Tecnologia de Alimentos , 2006, DOI: 10.1590/S0101-20612006000200033
Abstract: effect of extrusion parameters was studied on the expansion index, specific volume, water absorption index (wai) and water solubility index (wsi) of expanded yam snacks. the central composite design was used to study the parameters effect. it was verified three levels of temperature in the barrel (100, 115 and 130oc), three levels of screw speed (163, 204 and 245 rpm) and three levels of flour moisture (12, 15 and 18%). the results showed that expansion properties (expansion index and specific volume) depend on flour moisture and extrusion temperature. the wsi was dependant of three parameters. higher levels of temperature and screw speed increase the water solubility index (wsi). the studied parameters did not influence the water absorption index (wai).
Efeito de parametros de extrus?o na cor E propriedades de pasta da farinha de mandioquinha-salsa (Arracacia xanthorrhiza)
Menegassi, Bruna;Leonel, Magali;Mischan, Martha Maria;Pinho, Sheila Zambello de;
Ciência e Agrotecnologia , 2007, DOI: 10.1590/S1413-70542007000600027
Abstract: in this work peruvian carrot flour (arracacia xanthorrhiza bancr.) was processed in a single screw extruder at different moisture contents (11-19%), extrusion temperature (86-154oc) and screw speed (136-272rpm). the parameters l*, a* and b* of color were analyzed in extruded flours. the viscosity related parameters determined include initial viscosity, viscosity peak, breakdown, setback and final viscosity. the results showed effect of feed moisture on flour color (l* and a*) and the extrusion temperature influenced b*. moisture content of the feed had effect on initial and final viscosity, viscosity peak and breakdown. extrusion temperature and screw speed had effect on final viscosity and setback.
Methods to verify parameter equality in nonlinear regression models
Carvalho, Lídia Raquel de;Pinho, Sheila Zambello de;Mischan, Martha Maria;
Scientia Agricola , 2010, DOI: 10.1590/S0103-90162010000200014
Abstract: in biologic experiments, in which growth curves are adjusted to sample data, treatments applied to the experimental material can affect the parameter estimates. in these cases the interest is to compare the growth functions, in order to distinguish treatments. three methods that verify the equality of parameters in nonlinear regression models were compared: (i) developed by carvalho in 1996, performing anova on estimates of parameters of individual fits; (ii) suggested by regazzi in 2003, using the likelihood ratio method; and (iii) constructing a pooled variance from individual variances. the parametric tests, f and tukey, were employed when the parameter estimators were near to present the properties of linear model estimators, that is, unbiasedness, normal distribution and minimum variance. the first and second methods presented similar results, but the third method is simpler in calculations and uses all information contained in the original data.
Determination of a point sufficiently close to the asymptote in nonlinear growth functions
Mischan, Martha Maria;Pinho, Sheila Zambello de;Carvalho, Lídia Raquel de;
Scientia Agricola , 2011, DOI: 10.1590/S0103-90162011000100016
Abstract: growth functions with upper horizontal asymptote do not have a maximum point, but we frequently question from which point growth can be considered practically constant, that is, from which point the curve is sufficiently close to its asymptote, so that the difference can be considered non-significant. several methods have been employed for this purpose, such as one that verifies the significance of the difference between the curve and its asymptote using a t-test, and that of portz et al. (2000), who used segmented regression. in the present work, we used logistic growth function, which has horizontal asymptote and one inflection point, and applied a new method consisting in the mathematical determination of a point in the curve from which the growth acceleration asymptotically tends to zero. this method showed the advantage to have biological meaning besides leading to a point quite close to those obtained using the beforementioned methods.
Sweet passion fruit (Passiflora alata Curtis) germination: Phases and effect of plant growth regulator
Tainara Bortolucci Ferrari,Gisela Ferreira,Martha Maria Mischan,Sheila Zambello de Pinho
Biotemas , 2008,
Abstract: This work aimed to characterize Passiflora alata germination phases and evaluate the effects of GA3 and GA4+7, associated with phenylmethylaminepurine, on P. alata seed germination. Two experiments were conducted. In the first, two treatments were carried out: seeds submerged in distilled water in a Becker and seeds conditioned in containers on filter paper soaked in distilled water; five replications of 25 seeds were used. The moisture level and the percentage of germination (%G) were evaluated. In the second, six treatments and five replications of 25 seeds for each regulator were used. The seeds were imbibed in 0, 50, 100, 150, 200 and 250mg.L-1 of GA3 and GA4+7, associated with to phenylmethylaminepurine, for 11 hours. The seeds were sown in black containers and deposited in to the germination chamber. The numbers of germinated and dormant seeds were evaluated daily. The percentage of germination, the percentage of dormant seeds, and the mean germination time (TMG) were estimated. Significant differences in the germination phases between the methods were verified. The germination was affected by the regulators with an increase in the percentage of germination and a reduction in the mean germination time. The highest values were observed with 250mg.L-1 of GA4+7 plus phenylmethylaminepurine.
Physical and Quality Characteristics of Jupi Pineapple Fruits on Macronutrient and Boron Deficiency  [PDF]
Maria José Mota Ramos, Leandro Glaydson da Rocha Pinho
Natural Resources (NR) , 2014, DOI: 10.4236/nr.2014.58034
The deficiencies of mineral elements, change the development of plants in a broad sense, and therefore may alter the growth and fruit quality. The objective of this work was to evaluate the influence of macronutrient and boron deficiencies on morphological characteristics of Jupi pineapple fruits. The treatments complete, -N, -P, -K, -Ca, -Mg, -S and -B were applied as nutrient solutions in plastic pots with 14 kg of purified beach sand and one pineapple plant as the experimental unit. The trial was set up a randomized complete blocks design with six replicate. Nitrogen deficiency reduced fruit mass with and without crown, fruit length and diameter and peduncle diameter, increased TA, TSS and vitamin C, reduced TSS/TA, pH, pulp coloration and sensory acceptance of the fruits; phosphorus deficiency reduced fruit mass with and without crown, fruit and crown length, potassium deficiency reduced fruit mass with and without crown, length and diameter peduncle and calcium deficiency reduced peduncle diameter. Peel thickness was not affected by any deficiency. Nitrogen is the nutrient that most influenced the fruits quality of pineapple Jupi.
Sugestionabilidade Interrogativa em Mulheres Vítimas de Violência Conjugal
Cunha,Diana; Pinho,Maria Salomé;
Ex aequo , 2011,
Abstract: considering the increasing number of couple violence cases that are coming into the justice system, this study analyzes the vulnerability to suggestibility of women victims of this crime. individually, were administered to 60 women (30 victims of couple violence and 30 non-victims), the gudjonsson suggestibility scale 2, a source memory task, the assertiveness self-report inventory. the brief cope, the brief symptoms inventory and the couple violence inventory. the women who were victims of couple violence were less suggestible than non-victims participants. this result may be understood in view of the features often present in victims of couple violence, such as hypervigilance and distrust of others.
Sugestionabilidade interrogativa em crian?as de 8 e 9 anos de idade
Costa,André; Pinho,Maria Salomé;
Análise Psicológica , 2010,
Abstract: to study the influence of the variables age, intelligence, memory, general anxiety and social desirability in suggestibility, 8 and 9-year-old children were assessed using the bonn test of statement suggestibility (btss). the effect of the variables memory and non-verbal intelligence was studied in 145 children while, in a subsample of 74 children, the variables verbal intelligence, general anxiety and social desirability were also taken into account besides the ones previously referred to. eight-year-old children are more suggestible than older children. in the eight-year-old group, those with better performances in non-verbal intelligence (measured by raven’s coloured progressive matrices - rcpm), and in the btss story recall are less suggestible compared to the children with worse performances in these tests. similarly, the worse the performance achieved by nine-year-old children in rcpm, in the btss story recall and in the subtests of information, vocabulary and arithmetic of wisc-iii are, the more suggestible they are. the children belonging to this age group who show high social desirability (evaluated by rcmas) are also more suggestible. these results are discussed according to its relevance in the scope of the forensic field.
Regional Growth transitions and the evolution of income disparities in Europe
Carlos Pinho,Carlos Andrade,Maria de Fátima Pinho
Urban Public Economics Review , 2010,
Abstract: En este trabajo estudiamos la evolución dinámica de la renta regional per cápita Europea, y parte de las nociones de polarización y de desigualdad. Con base en una muestra de regiones europeas, tilizando datos para las NUTS 2, los resultados, para el período comprendido entre 1980 y 2007, apuntan a una tendencia general hacia la disminución de las disparidades regionales, aunque después de 2004 parezcan aumentar. Sin embargo, esta tendencia también es compatible con la presencia de procesos de polarización, que podrán dar lugar a la formación de varios grupos, homogéneos internamente, de regiones. Bajo la atención está el crecimiento económico de la región en relación con el rendimiento promedio en un subgrupo de regiones. La evidencia se ala que el crecimiento regional se hace con diferentes ritmos y describe una difusión espacial coherente con el enfoque de la Nueva Geografía Económica. Las consecuencias de los resultados para las políticas públicas son discutidas con enfoque en la eficacia del gasto público.
Origami as a Tool to Teach Geometry for Blind Students  [PDF]
Tania Maria Moratelli Pinho, Cristina Maria Carvalho Delou, Neuza Rejane Wille Lima
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.717249
Abstract: The teaching of mathematics involves logical and abstract reasoning that is often associated with belief, prejudices and difficulties. Therefore, students can develop an aversion to this science. This scenario may be even more complex when it involves blind students. However, creative didactic and pedagogical practices can help to deconstruct such adversities. The aim of the study was to test if eight workshops that were carried out the making four origami pieces (a small Box at it covers, a Rabbit face, and a “Bandeirinha de São João”-small flag of St. John party) could promote the construction of knowledge about geometry in 14 blind students. These students from the sixth to ninth year of elementary school are regularly enrolled of Benjamin Constant Institute, RJ, Brazil, and intend the after class. Eight workshops with 100 minutes each were conducted in September and October 2015 (n = 4) and in March and April 2016 (n = 4). Among eight paper types offered for students to make origami the kinds, we identified that the papers denominated waxed and sulfite were those who favored the realization of folds while Kraft one facilitated favored the discovery of the folds. On average, the questions concerning the geometric shapes and their elements obtained by the origami were answered correctly by eight students both for making the Box and its cover; as for the Rabbit face, and by ten students for making of small flag of St. John party. These results demonstrated the effectiveness of origami to teaching math to teenagers blind students.
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