Influ��ncia da adi����o de res��duo de caulim nas propriedades tecnol��gicas de uma massa padr��o de porcelanato produzido em escala industrial

VARELA, M. L. et al. Influ��ncia da adi����o de res��duo de caulim nas propriedades tecnol��gicas de uma massa padr��o de porcelanato produzido em escala industrial. Cer��mica, v.55, n.334 p.209-215. 2009.ISSN 0366-6913.Dispon��vel em: <http://www.scielo.br/scielo.php?pid=S0366-69132009000200015&script=sci_abstract&tlng=pt>. Acesso em: 06 out. 2010.

Natal: copa, hist��ria e sabores: o olhar dos acad��micos do curso de comunicação social da UFRN, disciplina de reportagem pesquisa e entrevista, primeiro semestre de 2011

MUNEIRO, Lilian Carla; FREIRE, Libny (Orgs). Natal: copa, hist��ria e sabores: o olhar dos acad��micos do curso de comunicação social da UFRN, disciplina de reportagem pesquisa e entrevista, primeiro semestre de 2011 [recurso eletr��nico]. Natal, RN: EDUFRN, 2012.

Cr��tica descentrada para o senso comum: amostragem da reflex��o acerca da comunicação contempor��nea realizada na Universidade Federal do Rio Grande do Norte

Cr��tica descentrada para o senso comum: MUNIZ, Euz��bia Maria de Pontes Targino; DANTAS, Juliana Bulh��es Alberto; ALBANO, Sebasti��o Guilherme (Orgs). Amostragem da reflex��o acerca da comunicação contempor��nea realizada na Universidade Federal do Rio Grande do Norte. Natal, RN: EDUFRN, 2012.

Di��logos de comunicação e cultura

Este livro �� a colet��nea dos artigos e relatos do Grupo de Estudos Comunicação e Cultura da Associa����o Nacional dos Programas de P��s-gradua����o em Comunicação (Comp��s), em encontro realizado em Juiz de Fora, no ano de 2012.

Comunicação interna em empreendimento hoteleiro: um enfoque gerencial

Globalization, which increased the market to a position of competition and change never before experienced, also imposed a series of changes that have transformed the social systems, organizations increasingly complex. In this scenario, communication has received attention from modern managers. Research indicates that some sectors of activity, more than others, rely on communication as a tool for achieving their goals. The tourism sector, located in the service segment is configured as one of these activities, which the hotel is part of the composite product. With the intention to acknowledge these aspects in this study sought to analyze the characteristics of internal communication in a hotel project in the managerial perspective. To try to answer this purpose we constructed a framework based on authors that discuss organizational communication, internal communication and hotel businesses. For the purpose of research was chosen a unit of study to assess the views of managers regarding the issue. In the unit studied was sought to apprehend these meanings through interviews with a group of managers in the organization and analysis of documents. Data were analyzed through content analysis of Bardin (1977), with the technique of categorical analysis, as it sought to capture aspects that allow the description of the contents of the messages. The results pointed to an organizational reality based heavily on orality, who lives constantly with noise and using communication to regulate behavior. With little or no reflection on managerial communication inferred that subordinates should not absorb the message completely, a phenomenon that can not be responsible for the complete fulfillment thereof. Moreover, it was realized that the organization studied did not plan your communication, since, yet the views as a strategic tool to achieve your goals

Comunicação p��blica e marketing pol��tico na gest��o p��blica municipal

Based on the definitions of Public Communication, Political Marketing, Public Interest Information and Communication as a Tool of Governance, the study notes the use of the news section of the websites of the City Christmas and Mossoro, Rio Grande do Norte, in regard to strengthening citizenship and encouraging participatory management, from the characterization of materials like pieces of Political Marketing and Public Communication. Data collection in qualitative research was conducted from August to September 2011 and content analysis showed that the appropriation of public property for personal use is a reality, despite legal requirements to the detriment of strategic communication and governance for results from the dissemination of information of public interest and the establishment of a communication channel between State Government and Society. Elements of this study suggest the need for further research to deepen the discussion

Comunicação e imagem organizacional: um estudo de suas rela����es no com��rcio varejista de shopping centers

This study shows the results of an exploratory-descriptive research that aimed to identify the latent dimensions of communication, as well as finding relations between such dimensions and organizational image. The sample came to a total of 267 respondents, being 89 managers or owners and 178 salespeople of clothing and footwear stores that are situated in the main five shopping centers located in Natal, capital of Rio Grande do Norte. The collection of the data was made by the use of two structuralized and validated instruments, being the answers measured in the likert scale of 6 points. For the measurement of communication it was used the instrument developed by Downs and Hazen (2002), made up of 8 latent dimensions and 32 indicators. For the image it was used the model of Mael and Ashforth (1992) that contains 5 indicators. The analysis of the data was made through of the use of statistical techniques of factorial analysis and structural equations modeling. The results of the factorial analysis demonstrated communication as being formed by five latent dimensions. The modeling, on the other hand, demonstrated to exist positive relations between communication and organizational image, whose results revealed that the image is influenced by the communication with the supervisor, by the organizational integration and as being stronger explained by the vertical communication

A comunicação interna numa organiza����o p��blica

The present study compose an analysis on the process of internal communication at a public organization, built on the survey data originary of administrative conduct, observation on the cultural model of the organization and how the interdepartmental and interpersonal relations shows up. The research, exploratory descriptive kind, had theoretical basis on two knowledge areas Administrative Science and Social Communication and was developed at Instituto do Desenvolvimento Econ��mico e Meio Ambiente IDEMA, in Rio Grande do Norte. During data collection, were conducted spontaneous and semi structured interviews with directors and coordinators, besides the application of directed questionnaire to functionaries in two unites of the institution. Through the analysis and interpretation of the data, we came to the conclusion that the process of internal communication at a public organization fall in with same challenges of private organizations, but with peculiarities that attracts the scientific look specially, in concern of the attitude assumed by the administrators in the conduction of communication functions inside the organization, the profile of social actor and the communication channels used. Although the organizational communication represents more and more a strategic function, as an administration tool, the point that research gets to shows that in public organizations the communication refrains from administrative purpose and with the major objective of giving publicity to the institutional acts and actions

Autoavalia����o institucional na dimens��o do SINAES comunicação com a sociedade : estudo de m��ltiplos casos em institui����es de ensino superior do Rio Grande do Norte

This study is about the institutional self-evaluation in Dimension 4, "Communication with Society", from the National System of Higher Education Evaluation SINAES, mandatory for all universities in Brazil. A multiple cases study was conducted with three institutions from Rio Grande do Norte, and the goal was to know how this evaluation is made, describing the concept for the evaluation of communication proposed by them, identifying controllers or emancipator aspects, categorizing methodological procedures and discussing the difficulties reported in the communication evaluation process. Coordinators of the institutions Evaluating Committees were interviewed and data categorized by means of qualitative content analysis. It was noted characteristics of the current controller, emancipator and hybrid designs in the three institutions for evaluation of communication, revealing the lack of a theoretical corpus that transits in accordance with the systemic perspective and epistemology of complexity from SINAES. It was found that the most frequently reported difficulties in the evaluation processes of communication are in the preparation stage, especially in the definition of indicators and tools and awareness work. The weakness in planning makes their own activities in the sector of communication become targets of assessment, forming goals poorly related with broader organizational goals. It was also concluded that the technical evaluation cannot override the issues associated with the broader issue of the complexity surrounding the assessment paradigm proposed by SINAES because contradictions and imperfections are part of the evaluation process and several references are current in the literature to support this view. Finally, it is said that objectives such as transparency and behavioral changes can rely on methodologies and techniques for research on the question of the construction of meaning

Influ��ncia do lodo de ETE na massa para fabrica����o de cer��mica vermelha

The WTP produce many kinds of residue on your treatment stages, but the sludge is the more problematic from the final disposition point view. The actual rate of residue production deriving from technological evolution and the crescent population needs prevents the subtle equilibrium generation between consumption and recycling/reuse, creating problems of pollution resulting from inappropriate management of residues. Thus, is necessary achieve a new equilibrium between the grow from raw materials and energy and the residue generation. This equilibrium should be achieved by technical and economic feasibility of environmental supported models through recycling and reuse. The red ceramic industry stand out in residue absorption question as raw material due their clay mass heterogeneity, constituted by clay minerals and non-clay minerals with wide mineralogical variation, allowing residue inclusion which act like plastic or non-plastic materials, contributing to retain heavy metals contained in residues in the vitreous mass formed during the burning of the ceramic bodies. This work propose the study of the influence of incorporation of 25 wt.% sludge from wastewater treatment plant, according preliminary results, in the mass to produce ceramic bodies. The raw materials was characterized through chemical composition analyses by XRF, mineralogical analyses by XRD, thermal analyses by TG and DTA, Atterberg limits and thermodilatometry. Subsequently was composed the mass with 75 wt.% of clay and 25 wt.% of dried wastewater sludge from UFRN WWTP. Samples with 6,0 x 2,0 x 0,5 cm was produced with unidirectional compacting under pressure of 20MPa and burned in temperatures between 950 and 1,200��C. After fired, the ceramic bodies have been submitted to physical and mechanical analyses through the measure of firing shrinkage, water absorption, density, apparent porosity and flexural strength; crystallographic analyses through XRD and microstructure analyses by SEM. The technological properties obtained was satisfactory to production of roof tiles with 25 wt.% at 1,200 ��C, but the production of others products at lower temperatures was not feasible

Efeito da adi����o de carbonatos em formula����o de massa para revestimento cer��mico utilizando mat��rias-primas do Piau��

Piau�� state is a major producer of traditional red ceramic burning as bricks, tiles and ceramic tiles, with its main production center located in the city of Teresina. The state has large reserves of raw materials that can be used in the ceramic coating as clays, quartz, talc and carbonates. However, in the preparation of ceramic bodies using only a mixture of clays with different characteristics. The study aims to evaluate the effect of adding two types of carbonates in the ceramic semiporous mass coating produced in Piau�� and then to verify the potential use of these carbonates as supplementary raw material product manufactured or the feasibility of obtaining a ceramic plate that meets the specifications for the porous coating. For this, were characterized the ceramic Piau�� coating mass, a calcitic carbonate and a dolomitic, were made in the levels of 2, 4, 8, 16, and 32%. The masses were formed by pressing and burneds in two environments: a laboratory furnace (1080��C, 1120��C, 1140��C, and 1160��C) and an industrial furnace (1140��C). Then, following tests of linear shrinkage water absorption, apparent porosity, bulk density and flexural strength. Furthermore, the fired specimens were tested for their macrostructure and microstructure. The results showed the possibility of using the carbonate in ceramic mass flooring produced in Piau��, as added in small proportions improved dimensional stability and increased mechanical strength of ceramics pieces. It also proved itself possible to produce porous coating when added in higher levels

Estudo de massa cer��mica triaxial visando �� otimiza����o do ciclo de queima da ind��stria de cer��mica estrutural

Over recent years the structural ceramics industry in Brazil has found a very favorable market for growth. However, difficulties related to productivity and product quality are partially inhibiting this possible growth. An alternative for trying to solve these problems and, thus, provide the pottery industry the feasibility of full development, is the substitution of firewood used in the burning process by natural gas. In order to contribute to this process of technological innovation, this paper studies the effect of co-use of ceramic phyllite and kaolin waste on the properties of a clay matrix, verifying the possible benefits that these raw materials can give to the final product, as well as the possibility of such materials to reduce the heat load necessary to obtain products with equal or superior quality. The study was divided into two steps: characterization of materials and study of formulations. Two clays, a phyllite and a residue of kaolin were characterized by the following techniques: laser granulometry, plasticity index by Atterberg limits, X-ray fluorescence, X-ray diffraction, mineralogical composition by Rietveld, thermogravimetric and differential thermal analysis. To study the formulations, specifically for evaluation of technological properties of the parts, was performed an experimental model that combined planning involving a mixture of three components (standard mass x phyllite x kaolin waste) and a 23 factorial design with central point associated with thermal processing parameters. The experiment was performed with restricted strip-plot randomization. In total, 13 compositional points were investigated within the following constraints: phyllite &#8804; 20% by weight, kaolin waste &#8804; 40% by weight, and standard mass &#8805; 60% by weight. The thermal parameters were used at the following levels: 750 and 950 ��C to the firing temperature, 5 and 15 ��C/min at the heating rate, 15 and 45min to the baseline. The results showed that the introduction of phyllite and/or kaolin waste in ceramic body produced a number of benefits in properties of the final product, such as: decreased absorption of water, apparent porosity and linear retraction at burn; besides the increase in apparent specific mass and mechanical properties of parts. The best results were obtained in the compositional points where the sum of the levels of kaolin waste and phyllite was maximal (40% by weight), as well as conditions which were used in firing temperatures of 950 ��C. Regarding the prospect of savings in heat energy required to form the desired microstructure, the phyllite and the residue of kaolin, for having small particle sizes and constitutions mineralogical phases with the presence of fluxes, contributed to the optimization of the firing cycle.

Adi����o de subprodutos da cinza da casca de caf�� (coffea canephora) em massa cer��mica para porcelanato

To produce porcelain tiles fluxing agents are used in order to obtain a liquid phase during firing. This liquid phase fills the pores decreasing porosity, water absorption and contributes to material densification. In the porcelain tiles industry, feldspar is the main flux material used, with quantities ranging between 35 and 50%. Studies focus on the discovery of materials with flux characteristics that can reduce the consumption of feldspar by porcelain tiles industry. In this context, the coffee husk ashes, a residue obtained when coffee husks are burned to produce heat for the dryers during the processing of the green fruit, have as main chemical constituents potassium, calcium and magnesium, giving them characteristics of fluxing material. Brazil is the largest coffee producer in the world and is responsible for over 30% of the world s production. In this work a physical treatment of coffee husk ash was carried out in order to eliminate the organic matter and, after this, two by-products were obtained: residual wastes R1 and R2. Both residues were added separately as single fluxes and also in association with feldspar in mixtures with raw materials collected in a porcelain industry located in Dias d ��vila-Ba. The addition of these residues aimed to contribute to the reduction of the consumption of feldspar in the production of porcelain tiles. Specimens were produced with dimensions of 60 mm x 20 mm x 6 mm in an uniaxial die with compacting pressure of 45 MPa. The samples were heated to a temperature of 1200 ��C, for 8 minutes. Tests were performed to characterize the raw materials by XRF, XRD, particle size analysis, DTA and TGA and, additionally, the results of the physical properties of water absorption, apparent porosity, linear shrinkage, density, dilatometry, flexural strength and SEM of sintered body were analyzed. Additions of less than 8% of the residue R1 contributed to the decrease of porosity, but the mechanical strength of the samples was not satisfactory. Additions of 5% the R2 residue contributed significantly to decrease the water absorption and apparent porosity, and also to increase the mechanical strength. Samples with addition of feldspar associated with the R2 residue, in proportions of 6.7% of R2 and 6.7% of feldspar, led to results of water absorption of 0.12% and mechanical strength of 46 MPa, having parameters normalized to the manufacture of porcelain stoneware tiles

A experi��ncia humana como estrat��gia : a comunicação como jogo & o jogo como comunicação

En la interface de las Ciencias Sociales y de la Comunicaci��n, la tesis expone una discusi��n sobre la Comunicaci��n Social como ��rea de conocimiento y discute las bases fenomenol��gicas de la producci��n de significado utilitario sobre el mundo. Para dar cuenta de esa reflexi��n se tiene como referencia la pel��cula Slumdog Millionaire? del director Danny Boyle. La experiencia vivida por el personaje principal llamado Jamal Malik sirve de apoyo a su ��xito en un programa de TV cuyos desaf��os consigue vencer uno a uno y transformarse en un millonario. El film, y en consecuencia la trayectoria de Jamal, es el operador cognitivo para que se presente la estrategia del personaje que transforma su conocimiento experimental en conocimiento pertinente, objetivo. La investigaci��n sirve de base para ofrecer el argumento central de que solo existe conocimiento por medio de la experiencia vivida. A partir de esa concepci��n, la comunicaci��n es vista en este ensayo como entrecruzamiento de caminos y nudos que se asemejan a un rizoma donde cada construcci��n de sentido, cada palabra que gana significaci��n representa diversos enlaces de esos nudos sist��micos. Aseguramos que la comunicaci��n es una condici��n sine qua non a los humanos y puede ser comprendida por la paradoja natural-artificial. Es de esta paradoja, que presentamos una contribuci��n de la complejidad de la comunicaci��n creyendo de forma dial��gica que s��, hay una condici��n innata de la comunicaci��n (y as�� mismo post humana) concomitantemente con la hip��tesis de la artificialidad comunicacional. Corroboramos as��, la idea de que el conocimiento fenomenol��gico de la comunicaci��n es un juego de la construcci��n cient��fica y, por lo tanto, un juego de la humanidad. En este mismo juego podemos comprender la comunicaci��n por intermedio de algunos macro conceptos de la compleja actividad de comunicar (retroalimentaci��n, recursividad y holograma) constelando as�� una estrategia de ligaz��n/est��mulo/respuesta que nos permite conocer bien y saber organizar mejor el conocimiento adquirido en la pr��ctica. La tesis tiene como interlocutores principales Claude L��vi-Strauss, Edgar Morin, Jean-Marie Pelt, Norval Baitello Junior y Vil��m Flusser, entre otros

G��nero ou sexualidade?: (re) produ����o das identidades homoer��ticas masculinas no cinema de massa

Homosexuality has been gaining strength in Cinema from the late twentieth century, when there is a dissemination of freedoms around the peripheral or marginal sexualities. Based on this assumption, it was formulated in the dissertation work, an analysis of the relationship between Cinema and Sexuality in order to understand, describe, reflect and analyze possible changes around the performative behaviors of male homosexual from the introduction of them in film production, arising from the mass culture industry. These productions are located in three different decades. In this case, the Cinema has not only the reproductive character of realities, but also a producing agent and consolidating them. The methodology applied was discourse analysis of three film works, namely La Cage aux Folles (1978), In & Out (1997) and Boat Trip (2002). The image, research object of this work, is developed by a mass culture that will produce mass identities which is characterized by crystallization of clich��s around the gay world