908 resultados para Produção brasileira de maça


Relevância:

30.00% 30.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This research aims at analyzing the Brazilian scientific contribution on “metric studies” in the mainstream science through journals indexed in the Scopus basis, intending to visualize its insertion and international impact in the area. Mainly, to diachronically study the researches, the most productive authors and the scientific support network generated among them, as well as to identify the journals in which such production has been disseminated. It is based upon the three main target groups of current bibliometrics, as in Glänzel’s perspective (2003), and upon the impact of Brazilian researches in the international community through the citations received. Were found 263 articles and tables concerning the diachronical study and the highlighted researchers and journals were constructed analyzing the insertion in the target groups, the number of articles, number of citations and the average of citations. As results, researchers from the Federal Universities of Rio de Janeiro and São Paulo have stood out. All the researchers permeate the application of metric studies to several scientific areas, with emphasis on the health and biological sciences. The least contemplated researches were the ones whose objective was to develop and to discuss the bibliometrics as methodology, contributing to its on conceptual-theoreticalmethodological development, as well as those focusing on contributing, assessing and guiding scientific policies. We conclude by suggesting scientific and academic policies which motivate the researchers to publish in journals indexed in international bases in order to internationalize Brazilian science.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Information Science (IS) research has strongly grown in Brazil, in the last decade, and, as a consequence, it was possible to observe a growth of the support given by the Brazilian National Scientific and Technological Development Council - CNPq. In this sense, this paper aims to analyze the scientific production (journal papers) of the 15 IS researchers who have the highest level research fellowships during the period between 2001 and 2010. Data were analyzed in terms of bibliographic dispersion, internationalization, and scientific collaboration as well as in terms of the most prominent journals. The results (219 papers) evidence an average of around 1.5 papers per author per year and a group of 63 different journals (60% evaluated under levels Qualis A1 and B1). The journal DataGramaZero is strongly present since it responds for 22% of the whole production. It was possible to observe a still shy presence of foreign journals and none of them belong to the Anglo-Saxon environment. The kind of authorship is well-balanced between individual and collective ones, including inter-institutional collaboration. It is possible to conclude that this group is mature and very productive, and it represents an academical IS leadership in Brazil but still lacks more international visibility.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Pós-graduação em Estudos Literários - FCLAR

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

30.00% 30.00%

Publicador:

Resumo:

The Brazilian livestock stands out for having the world largest commercial herd of cattle and leads meat exportation and production of bovine embryos. The in vitro production (IVP) of embryos is considered an effective option to overcome problems such as infertility in cows with high economic value and also for genetic improvement of cattle. The in vitro oocyte maturation is an essential step to the success of IVP, but is still considered poor when compared to in vivo maturation. Recent studies have suggeested an important role of Fibroblast Growth Factor 10 (FGF10) on the in vitro maturation of oocytes, which favored the expression of genes related to oocyte maturation and cumulus cell expansion. Aware that maturity stage influences the final production of blastocysts, we aimed study to verify if the addition of FGF10 into the maturation medium is able to affect positively the IVP of bovine embryos. Hence, FGF10 was added to maturation in five different concentrations: 0.5 ng/mL (group 0.5), 2.5 ng/mL (group 2.5), 5 ng/mL (group 5), 10 ng/mL (group 10) and 50 ng/mL (group 50). Additionally, two other maturation groups were used, group BSA (Bovine Serum Albumin, 4 mg/mL) and group FCS (Fetal Calf Serum, 10%). The rates of cleavage, morula and blastocyst were analyzed by Analysis of Variance (ANOVA), differences of P<0.05 were considered significant. Cleavage rates did not differ between the seven groups. On the other hand, morula rate on FCS group was higher than groups BSA, 0.5, 10 and 50 (P<0.05), but did not differ among groups treated with intermediate doses of FGF10 (2.5 and 5). FCS group presented higher blastocyst rate compared to all other groups that were well below the FCS group (P<0.0001). Therefore, the use of FGF10 during oocyte maturation did not affect positively embryo development on the IVP of bovine embryos

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This monograph object of analysis is the agriculture modernization in Brazil between 1960 and 1980, highlighting the discussion of the economic and politic ideas around the Brazilian agrarian question. The first parte presents an introduction about this issue and the theoretical positions, as well as social and economic implications for the development of the productive forces on rural areas. Nevertheless, reflections of its development to the economy as a whole, highlighting the way the income distribution and concentration was realized. On the second part its presented the agriculture modernization Project on the centralized militar government point of view, by the propositions of that time Agriculture Minister, Antônio Delfim Netto. The approach is made through the proposals precreeded by the Rural Worker Statute and the Land Statute, before the Military Coup, with its news counterpoints settled in law by the Agriculture Modernization Project installed in 1964; the concessions of funding grants and subsidized credits; the relationship between the authoritarian State and the militarization of the land conflicts. The third part deals with the salary dinamics, income and profit on the modernized rural economy created by the agroindustrial productions system. Lastly the conclusion cross the economic and social results of the agrarian question evolution, to the Brazilian agriculture modernization on income distribution

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This study aims at enhancing the understanding of the educational criticism in the beginning of the twentieth century, focusing on the ideas of Lima Barreto. Before the emergence of the "educational professionals", educational thought was developed by publicists and writers involved in a fertile debate, the results of which became visible in literary and journalistic production. Through the analysis of articles, short texts published in the press, novels and short stories written by Lima Barreto, it’s possible to gather a specific concept of education, underlying his criticism and fictional characterization of school education, as well as an interesting sketch of the cultural profile of Brazilian society at the time. Either explicitly or implicitly, in their evaluative and theoretical references, the limits of the critical readings of the author, which are expressed in the contradiction between negation of the given conditions and their affirmation, unveil the historical aspects of social and educational thinking and criticism.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This article brings to light the latest research on the activities of Baptiste-Louis Garnier, French bookseller and publisher established in Rio de Janeiro, in his relations with the French publishing world: methods, procedures, books, authors and publishers. Cultural exchanges between these two systems helped to consolidate the canon of authors and works of Brazilian Literature in the nineteenth century. The study of these relationships can give full account of some information scholars have provided us and contributes to a better understanding of the process of production and circulation of literary works in Brazil.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Isolate microorganisms that fermenting xylose to ethanol is a challenge to expand production of biofuels from lignocellulosic materials. For this work was tested fermentation of xylose by yeast strains isolated from grape skins (Vitis spp) in order to ethanol produce. The yeasts were grown in submerged fermentation with xylose as a carbohydrate source. Aliquots were taken every 24 hours to measure cell growth, sugar consumption and ethanol production. The yeast had an production ethanol average of 2.5 g / L and yield (Ye / s) 0.12 g / g, showing that they have the ability to produce ethanol from xylose.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Ce travail a le but de quantifier les formes les plus courantes d’adjetifs en portuguais brésilien, il s’agit d’un travail qui porte sur les usages synchroniques de la langue. Notre objetif c’est d’indentifier les formations lexicales propres aux adjetifs et de quantifier les usages de ces fomations pour en découvrir les tendances synchroniques de ces usages en portuguais brésilien. Le corpus est de base écrite, composé des lettres des lecteurs de magazine, ce qui permet plus de stabilité pour l’analyse. Vu qu’il s’agit d’un suport d’expression populaire le corpus nous a possibilité de faire un approche au langage plus informelle dont la façon d’expression permet la formation de vocabulaires les plus insolites et les plus récentes, tandis que l’écrite formelle résiste plus aux changements. La recheche des formes nous a donné des résultats quantitatifs des formes déjà connues, les plus nouvelles aussi et des usages des mots appartenants à d’autres classes gramaticales qui avaient une valeur d’adjetive dans quelques contextes spécifiques, en expressions typiques de langage informel. Ce travail, donc, contribue comme um petit portrait de la réalité lexicale brésilienne dans l’usage dynamique de la langue

Relevância:

30.00% 30.00%

Publicador:

Resumo:

The steady increase in the price of oil and its derivatives, carbon credits, the concern with the environment combined with the precipitation of rain water and lack of water resources that Brazil has suffered in 2014 caused a migration of participation sources of energy in the Brazilian energy matrix. The hydropower sector suffered big drop at 2013 and is suffering so far, contributing thus to the generation and cogeneration of thermal energy using renewable energy sources such as: sugarcane bagasse, wood chips, rice husks, among others. The selling price of the electricity market reached the level of R$ 807, 00 MWh in January 2014 (Source: ANEEL), heating the Brazilian thermoelectric sector. Although thermoelectric use in bulk water as vaporizing fluid to produce electricity and use in various processes, water reuse plans have become an important factor in these industries. The increased use of biomass has been the bagasse which is allied to the sugarcane sector, strong market in Brazil, and consists basically use the rest of sugar cane, sugarcane industries that would play out. The sugar and ethanol industry is very unstable and only lasts for 6-8 months a year, and the remaining time in the period known as between crop that corresponds to the planting and harvesting of sugarcane and then enter the period of vintage which is the constant cane harvesting and crushing it. This instability of the market and the thermoelectric idle period leads the thermoelectric industries to seek other sources of renewable energy, such as wood chips (pine, Eucalyptus, Orange), rice husk, sorghum among others, to not be dependent on alcohol sector. The present work aims to study the use of wood chips as an alternative biomass for burning a fuel that essentially uses bagasse, the thermoelectric in question consists of two boilers that produce together 350 t / h ... (Complete Abstract click electronic access below)

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This work studies the incorporation of new technologies in the sugarcane sector. Are considered the ethanol steam reforming and the gasification of sugarcane bagasse(by-product) processes associated with combined cycle systems (Gas Turbine + Steam Turbine), aggregating hydrogen production and increased electricity supply in the sector, respectively. To verify the technical feasibility of the incorporation processes was performed a thermodynamic analysis, considering data from a typical Brazilian Sugar Cane Industry. In another step the economic viability study of the hydrogen production process was made, with consideration on hydrated and anhydrous ethanol steam reform, comparing the cost of hydrogen production. Also considered studies of economic engineering of the gasification process and the generation of electricity associated. As conclusions, it follows that the ethanol steam reforming is a great alternative for hydrogen production, presenting production cost relatively low, especially when is considered the steam reforming of hydrated ethanol. For the gasification process associated with combined cycle, can be observed an increase of 8.56 times of the electricity production in the sugar cane industry, indicating a positive annual saving when the sales price of the supply electricity is greater than 0.070 US$/kWh. Finally it can be concluded that the incorporation of these new processes allow greater profitability and operational flexibility of Brazilian sugarcane mills