Infiltração de sal de alumínio em fibras de sisal para obtenção de fibras de alumina

ANDRADE JR., T. E. et al. Infiltração de sal de alumínio em fibras de sisal para obtenção de fibras de alumina. Cerâmica, v.51, n.317, p.37-41.ISSN 0366-6913. Disponível em:-69132005000100008&script=sci_abstract&tlng=pt>. Acesso em: 06 out. 2010.

Política de promoção da exportação : um olhar sobre a evolução da cultura de melão do Rio Grande do Norte

Some sectors in Brazil are earning notoriety in the international market, configuring itself in dynamic areas for the Country. The most typical case is the agribusiness. Rio Grande do Norte state has important role, because 90% of the output of the melon exported by Brazil is produced at Assu/Mossoró. The present work planned to verify the evolution of the culture of the melon produced at Assu/Mossoró area, from 1990 to 2003. Through descriptive research, utilizing the case study and documentary analysis of secondary data this work showed the evolution of the area reaped of melon in the pole Assu/Mossoró, the quantity produced of melon and of the value of the output of the melon between 1990 and 2003. The research verified that all of the factors studied show growth during the analyzed period, showing up the importance of the agribusiness for the region. However the analysis shows the vulnerability of the sector concerning external macroeconomics factors, such as the exchange rates. Showing the importance and/or dependence of the producers for public actions to development of the culture, that might be on areas like infrastructure, economics or taxes

Produção de fibras de alumina biomórfica a partir do sisal

Sisal is a renewable agricultural resource adapted to the hostile climatic and soil conditions particularly encountered in the semi-arid areas of the state of Rio Grande do Norte. Consequently, sisal has played a strategic role in the economy of the region, as one of few options of income available in the semi-arid. Find new options and adding value to products manufactured from sisal are goals that contribute not only to the scientific and technological development of the Northeastern region, but also to the increase of the family income for people that live in the semi-arid areas where sisal is grown. Lignocellulosic fibers are extracted from sisal and commonly used to produce both handcrafted and industrial goods including ropes, mats and carpets. Alternatively, addedvalue products can be made using sisal to produce alumina fibers (Al2O3) by biotemplating, which consists in the reproduction of the natural fiber-like structure of the starting material. The objective of this study was to evaluate the conditions necessary to convert sisal into alumina fibers by biotemplating. Alumina fibers were obtaining after pretreating sisal fibers and infiltrating them with a Al2Cl6 saturated solution, alumina sol from aluminum isopropoxide or aluminum gas. Heat-treating temperatures varied from 1200 ºC to 1650 °C. The resulting fibers were then characterized by X-ray diffraction and scanning electronic microscopy. Fibers obtained by liquid infiltration revealed conversion only of the surface of the fiber into α-Al2O3, which yielded limited resistance to handling. Gas infiltration resulted in stronger fibers with better reproduction of the inner structure of the original fiber. All converted fibers consisted of 100% α-Al2O3 suggesting a wide range of technological applications especially those that require thermal isolation

Direção espiritual na TV canção nova: análise do discurso do Padre Fábio de Melo

The aim of the research is to analyze Direção Espiritual a TV program produced by Catholic Church and presented by Canção Nova Channel. The program is presented by Father Fábio de Melo, a catholic priest that also is a famous religious singer and writer. The analyses included not only some TV programs, but also interviews with some of the viewers and Fabio de Melo himself. The results points out the emergence in Brazil of a new religious speech from Catholic Church founded in comprehension path, dissociated from punishment and guilty. This religious speech is more like a self help speech rather than a tradicional religious discourse itself, very similar to psychotherapeutic speech. The TV program presented by Fabio de Melo is guided in tiny line of sacre and profane which announces contradictions but also a new blend of religious approach in contemporary days

Arranjos produtivos globalizados: o caso do APL da fruticultura de melão de Mossoró - Baraúna-RN

This study discuss the issue on Clusters Global, the productive arrangement of fruits melon Mossoró/Baraúna in Rio Grande do Norte, located in the Potiguar semi-arid RN, is entered in the arket international level, the job serch, from the benchmark neo-schumpeterian, strongly condensed and absorbed in Brazil by focusing on Local Productive Arrangements set out by the Reseatch Netwoark on Sistemas Produtivos e Inovativos Locais (REDESIST), understanding the extent to which innovation efforts, and as interactions between the main actors that make up this APL in particular, account for its global insertion. The methodology includes the application of questions to the producers of melon arrangement as well as interviews with the main responsible for the support, promotion and financing. In conclusion, there is a significant interaction between producres and actors of the arrangement, a fact that contributes to the integration into the international market together with the implementation of relevant innovations. Finally, it is pointed out the need for public policies directed to the production of melon because of its relevance to the exports of Rio Grande do Norte

Equilíbrio líquido-líquido para o sistema biodiesel de óleo de semente de melão (Cucumis melo l.) + metanol + glicerina

Rio Grande do Norte, northeast state from Brazil, it is the greatest producer and exporter of yellow melon, well known as Spanish melon. Despite the consumption of this fruit to be mainly its pulp, melon seeds are an important source of lipids considered an industrial residue it has been discharge product. The use of oilseeds in order to produce biodiesel establishes an important raw material and the increase of its production promotes the national development of the agriculture. In this background, the aim of this work has been to use oil from seeds of yellow melon to produce biodiesel and to accomplish a study of the phase equilibrium of the system evolving biodiesel, methanol and glycerin. The biodiesel was obtained by oil transesterification through methylic route with molar ratio 1:9.7 (oil:alcohol) and with a mass of NaOH of 0.5% from the oil mass; the reaction time was 73 minutes at 55 °C. A yield of 84.94% in biodiesel was achieved. The equilibria data present a well-characterized behavior with a great region of two phases. The tie lines indicate that methanol has a best solubility in the phase that is rich in glycerin. Consistency of the experimental data was made based on Othmer-Tobias and Hand correlations which values above 0.99 were found to correlation coefficients, this fact confers a good thermodynamic consistency to the experimental data. NRTL and UNIQUAC models were employed to predict liquid-liquid equilibrium of this system. It was observed a better concordance of the results when NRTL was applied (standard deviation 1.25%) although the UNIQUAC model has presented a quite satisfactory result either (standard deviation 2.70%). The NRTL and UNIQUAC models were also used to evaluate the effect of temperature in the range of 328 K to 358 K, in which a little change in solubility with respect to the data obtained at 298 K was observed, thus being considered negligible the effect of temperature

João Cabral de Melo Neto: a estética do avesso

La pieza-poema Morte e Vida severina Auto de natal pernambucano, de João Cabral de Melo Neto, publicada en 1956, es el principal objeto de este estudio, interaccionando con las obras O Cão sem plumas y O rio por la similitud temática entre ellas: el estudio sobre esas obras busca una lectura desvinculada del posicionamiento constructivista y metalingüístico que por tradición configura la obra cabralina, no por negar a la crítica literaria que da respaldo científico, pero con la pretensión de lanzar una nueva mirada dirigida para el concepto de barroco, materia ésta que implica la creación poética a partir de la segunda mitad del siglo XX. Por lo tanto, este trabajo presenta una propuesta de análisis de la poesía de João Cabral a partir del contexto neobarroco. Considerando, sobre todo, los aspectos similares a la temática del barroco, el enfoque recae sobre la influencia de la literatura ibérica por que pasa el poeta João Cabral, así como la temática sobre el conflicto existencial explorado en el texto Morte e Vida severina, y aún, los extractos de lenguaje con significación múltiple que presentan signos metonímicos y metafóricos.

A doença de criar passarinhos: a lírica humanizadora de João Cabral de Melo Neto

João Cabral de Melo Neto n a jamais aimé les vers sentimentaux et prolixes venus de la tradition romantique. C est pour ça que son uvre a un discours objectif, rigoureusement elaboré e elle comporte certaines influences concretistes ça explique pourquoi l auteur est connu comme l ingénieur de la langage. En verité, le poète même dissait qu il était un homme froid et rationnel. La critique a assidument analysé la matière logique et le rigeuer formel de l uvre de Cabral de Melo. Pourtant, dans ce travail nous analysons les poèmes dont le sentiments humaines sont la mtière principal de l élaboration de l experiènce esthétique. La poèsie de João Cabral n est pas simple verbalisme formel, ni un uvre sens vie, car les objects concrètes et la langage objectif n empêchent pas qui le sujet décrit avec émotion les scènes presents dans les poèmes. Nous travaillons avec la hypothèse de que le poète a une attitude trop humaine quand il parle de l experience culturel et de l experience de la vie dans le Nord-est brésilien. Les unités témathiques de ce travail, pourtant, montrent la représentation du Nord-est dans la poèsie de João Cabral et examinent aussi le sentiment qu il sent par la memoire culturel de sa région. Parmi les aspects qui composent sa lyrique humaine nous citons la personification constant de les paysages du Nord-est le poète ne veux pas faire une décrition tophographique de la région parce que les places ont un valeuer sentimentel pour lui; au moyen d un discours erotique, Cabral represente les desirs et les intints humaines de sa terre; ensuite, il semble que le poète est enchanté et enveloppé avec certains elemets culturels de sa région, come l hamac, la littérature oral et la musique régional; la preoccupation avec la population explorée et la denonciation de la condition miserable dans le Nord-est brésilien confirment aussi la humanité présent dans son uvre; finalment, la récordation de l enfance et la nostalgie du temps passé sont, pour le poète, un possibilité qui peut aider dans la formation humaine de la population

O auto da morte e da vida : a escrita barroca de João Cabral de Melo Neto

This dissertation, entitled O Auto da Morte e da Vida: A escrita barroca de João Cabral de Melo Neto, has the aim of analising, interpreting, in a baroque perspective, Cabral s writing in the poem/play Morte e vida severina Auto de Natal Pernambucano, taking as basis the theories of Eugênio D´Ors, Severo Sarduy, Omar Calabrase, Lezama Lima, Afonso Ávila, Affonso Romano de Sant´Anna and others cited in the body of this work. During the analisys we feature confluences, relations, similarities, identification between the Baroque of the counter reformation and the modern Baroque or Neobaroque. We seek to comprehend the baroque which is new in the XX century and Cabral s poetry as an element of the contemporaneity, by updating the concept of the Baroque in the 1600s, when it is detected in its purest characteristic in human relation (the life of the Northwestern brazilian) through an intangible reality (the death). The Baroque as a cultural summary of a period of instability and transformation, with the power of dismantling an already established poetry. The fight between words and things, language and reality

O sertanejo e o sevilhano nos poemas de João Cabral de Melo Neto: o lusco-fusco barroco

The aim of this research is, starting from a Baroque reading, unfold the understanding of the poems by João Cabral de Melo Neto in the axis Pernambuco-Spain. From this perspective, the reading of poet s Obra Completa allows the appearance of two persons, one from Seville and other from the Brazilian countryside, whom curiously pulsate and reveal themselves from their homelands, Brazilian northeastern dry lands and Seville, to a labyrinthy meeting establishing a close and exciting relationship of cities apart but which mark a contiguous dialogue between both cultures. The theorical effort of this investigation permeates, approaches and contrasts the directions of, among others, Severo Sarduy (1999), Gilles Deleuze (2012) and Eugenio D Ors (unknown). Not traveling an anthropological bias, this study observes the Spanish space and the Brazilian northeastern dry lands space, joining the regional to the universal and analyzes the baroque game in the (re) construction of the both men s cultures. These elements fuse, approach and move away, causing a game of allusions to Pernambuco and Spain that show itself through a similar cultural bias and different at the same time. From this apprehension it is possible to understand the synthesis of the Brazilian arid northeast-Seville men as a update of seventeenth century Baroque coming from indexes that are shown over the particular written by João Cabral de Melo Neto, in the Iberian Baroque scenario and in the American one s

Desempenho de pacientes com acidente vascular encefalico em testes de reconhecimento de tividades de vida diaria com frequencia autocontrolada e pre- determinada Luciana Protásio de Melo Natal 2009

The stimulation of motor learning is an important component to a rehabilitation and type of practice used is de basic importance to Physiotherapy. The motor skills are the types more basic of behavior that subjects must acquire throughout its lives and observational learning one of forms for its acquisition. Objective: This study aimed to compare performance of patients post- stroke on test of recognition of activities of day life using self-controlled and externally determined practice. Intervention: Forty subjects had been evaluated, 20 stroke patients (the mean age was 57,9?}6,7 years, schooling 6,7?}3,09 years and time of injury 23,4?}17,2 months) and 20 health subjects (the mean age 55,4?}5,9 years and schooling 8?}3,7 years). All was evaluated about independence functional (FIM) and cognitive state (MMSE), and patients were also evaluated about neurologic state (NIHSS). Later, all realized a recognition of activities of day life test (drink water and speak to telephone) on self-controlled (PAUTO and CAUTO) and externally determined (P20 and C20) frequency. The stroke subjects also were examined for a three-dimensional system of kinematic analysis, when they have drink water. The statistic analysis was realized for chi-square and t Student tests. Results: This was not difference, about number of rightness, between groups of self-controlled and externally determined practice (p0,005), and also not between patients and control groups (p0,005). Patients mean velocity (PAUTO: 141,1mm/sec and P20: 141,6mm/sec) and peak velocity (PAUTO: 652,1mm/sec and P20: 598,6mm/sec) were reduced, as well as the angles reached for elbow (PAUTO: 66,60 and 124,40; P20: 66,30 and 128,50 extension e flexion respectively) regarding literature. Conclusions: The performance on recognition of activities of day life test was similar between on self-controlled and externally determined frequency, showing both technique may be used to stimulate motor learning on chronic patients after stroke

O uso do território pela fruticultura irrigada no Rio Grande do Norte: uma análise a partir do circuito espacial produtivo do melão (cucumis melo l.)

In recent decades the production of irrigated fruits destined to supply the foreign market reveals itself as an expression of the thriving agricultural modernization, consisting an important and dynamic segment of Brazilian agribusiness, especially in the Northeast. The Rio Grande do Norte contributes to this scenario through the production of several tropical fruit, especially melon production in the municipalities of Baraúna/RN and Mossoró/ RN. Accordingly, the overall goal of the study is to understand the agricultural use of the territory of Rio Grande do Norte by irrigated orcharding from the circuit productive space configuration of melon. The outlook presented in the work on the irrigated agriculture developed in Rio Grande do Norte reveals that it falls within an agricultural division of labor, through productive specialization of places that have natural and technical conditions favorable to the exploitation and reproduction of capitals. The land use caused by circuit productive space melon enables flows of tangible and intangible consolidate a extraverted network of production and consumption in order to meet the requirements of foreign markets

Sustentabilidade do cultivo de melão no assentamento São Romão em Mossoró/RN

Agriculture is one of the most discussed topics currently in the conceptual field of sustainability. The debates are increasingly recurrent and put in question the model adopted from post-war, so-called green revolution, for its potential of degradation of natural resources. This type of Agriculture put Brazil at the top of the global agribusiness, where stands out in various sectors such as grain, meat, sugar and horticulture. Discussions are focused on aspects related to the use of agrochemicals, monoculture, conversion of native forest in extensive agricultural areas, among other points taken as deleterious to environmental balance. On the other hand, there is a model, called by family farming, which for many researchers, has attributes closer to the understanding of sustainable agriculture. In the state of Rio Grande do Norte, the agricultural potential lies mainly on horticulture, where stands the agropolo AcuMossoró, as one of the greatest tropical fruit producing regions of Brazil, being melon, the major fruit produced. The cultivation of this vegetable was developed in the region in the late 1980s, from the investment of large agricultural enterprises, whose cultivation techniques were grounded by the green revolution. Currently, the melon cultivation is also developed in agroecosystems whose management is characterized by family participation, including small farmers of rural settlements created by Instituto Nacional de Colonização e Reforma Agrária (INCRA). In view of the inclusion of family farming in a field that recently was dominated by large agribusiness companies, some questions arise about the maintenance of attributes that characterise this type of family agriculture management. This research aimed to assess the sustainability of family agroecosystems in São Romão settlement in Mossoró-RN, cultivated with melon. The study was conducted by the Framework for Evaluation of Natural Resources Management Systems Incorporating Sustainability Indicators (MESMIS), in ten agroecosystems of the mentioned settlement. The data were obtained from semi-structured interviews and field observations, so that the answers, considerations and comments made by settlers, were widely used to cycle through the six steps of the MESMIS evaluation. As a result of the work, were determined seven critical points affecting sustainability, being: water resources, soils, reliance on external inputs, biodiversity, quality of life, family income and community organizing, from which was derived twenty-three indicators that sought to reflect the actual state of sustainability of the agroecosystems

Dar a ver Sertão e Sevilha: matizes hispânicas na poética de João Cabral de Melo Neto

Dar a ver Sertão e Sevilha: matizes hispânicas na poética cabralina is a study on the lyric reading possibilities of Cabralian poetry, from the work of the poet from Pernambuco, that shows the intercultural dialogue and the Spanish poetical approach absorbed by João Cabral de Melo Neto during his Andalusian experience. Hispanic interfaces incorporated by the Cabralian poetry through literature or through the direct contact with the culture are registered on the 133 poems that have Spain as theme, in which we can see the matrix of Hispanic tradition, rich in its diversity, was the preponderant element for the poet João Cabral to discover the core of his lyric backwards. From Hispanic corpus, it will be explored the aesthetical assimilation of Spanish poetry in the work of João Cabral de Melo Neto, with the objective of demystifying the issues of lyrical dullness and anti musicality on Cabralian poetics in which, from the appropriation of Hispanic elements investigated as a signal of lyrics and musicality, originates a reading unattached from the constructivist signal, tessitura evidenced by the critic Antonio Candido since the origin of JCMN poetry with the poem Pedra do sono (1942). The mentioned aesthetics was adopted later on by the literary critics that named it as “brain poetry” for its hermetical configuration, tessitura of rigor, concreteness of language and stiff metrics. The results obtained from this study aim to induce a reading that favors the lyrical acoustic of the Cabralian poetry in the effort to ease the aspects of the arid construction.

Infiltração de sal de alumínio em fibras de sisal para obtenção de fibras de alumina

ANDRADE JR., T. E. et al. Infiltração de sal de alumínio em fibras de sisal para obtenção de fibras de alumina. Cerâmica, v.51, n.317, p.37-41.ISSN 0366-6913. Disponível em:-69132005000100008&script=sci_abstract&tlng=pt>. Acesso em: 06 out. 2010.