Uma odisséia em busca de Héstia: do turismo à hospitalidade pelos caminhos das representações sociais

This thesis is the result of a piece of research on hospitality social representations between tourism professionals and academics in the city of Natal. The reasearch s corner stone is the point of the view that the notion of hospitality, with all its theoretical and practical implications, is essential to the success of any tourist destination. Is there any relevance in the growing use of the word, almost as a synonym for tourism? How is this notion, first learned in the domestic context and then exercised in the contact with the city and especially with visitors, represented in the learning process for professional practice and in the exercise of professional tourist reception itself? In order to answer this question, initially we chose to study the concept of hospitality in their current academic view, with reference to the French school, which binds hospitality to the maussian perspective of donation, and other scholars of the current theme, with emphasis on the research performed in the program of Master of Hospitality at the Anhembi Morumbi University, whose philosophy imprints in the hospitality concept the same sense we want to give this study. Then we chose to analyze the notion of hospitality, by the Social Representations Theory, in light of Moscovici s methodology, as well as the analysis of the core of this concept among tourism professionals and students. It was found that hospitality is still a very diffuse reference to representations of these two groups and that academic education, if accepted both theoretical and practical implications of this research s starting point, will still have a long way to go. Cities such as Natal, "naturally" hospitable, according to its dwellers, where tourism is relevant to their economies, need (re)thinking and (re)organizing, continuously, their actions towards quality and performance of their professional training especially those concerned with receptive structure

concepções de administração e administrador em tempos de capitalismo flexível: uma abordagem crítica

A tese trata de dois construtos sócio-históricos Administração e Administrador em face do capitalismo em sua fase flexível. Considerando as mudanças do capitalismo, o texto estabelece como objeto de estudo as concepções de Administração e Administrador, para o campo administrativo, na contemporaneidade. A tese é suportada por uma pesquisa de campo cujo objetivo foi compreender criticamente as concepções do campo administrativo sobre a Administração e o Administrador, em tempos de capitalismo flexível. Epistemologicamente, a pesquisa foi conduzida a partir da perspectiva crítica frankfurtiana, fundamentada em três pares categóricos dialéticos: (i) história versus naturalização; (ii) práxis social versus sistema; e (iii) alienação versus emancipação; privilegiando o pensamento crítico vinculado à primeira geração da Escola de Frankfurt. A literatura prevalente da área de Administração foi revisada mediada pelas duas questões ontológicas que suportam a tese: O que é Administração? e O que é Administrador? para autores como Taylor, Fayol, Drucker, Ohno, Deming, Champy e Mintzberg. Metodologicamente, foi realizada uma pesquisa integralmente qualitativa, com uso de três tipos de entrevistas: (i) entrevista narrativa com história de vida; (ii) entrevista com uso de elementos-estímulo; e (iii) entrevista narrativa ficcional. Para compreensão das narrativas, foi utilizada a técnica de análise hermenêutico-dialética. Os resultados indicam o predomínio da concepção pragmática-instrumental, no tocante à Administração, pela qual ela continua a ser pensada e discursada como uma ação tecnológica e teleológica, que utiliza saberes múltiplos e aprendizagens cambiantes como meios para alcance das finalidades do contexto organizacional mutante. Com relação ao Administrador, há a emergência da concepção estética para apresentá-lo, quando vinculado às organizações. Por esta concepção, há a migração do histórico estereótipo do Administrador controlador e vigilante para a representação do Administrador como um profissional performático. O segundo resultado, que se apresenta como o mais relevante em relação ao Administrador, é o da fuga da profissão. A partir dos pares categóricos dialéticos, esta tese propõe algumas sínteses provisórias críticas: (i) história-naturalização: os sujeitos tomam como naturais a organização empresarial e suas demandas, naturalizando as recentes mudanças que, entre outras coisas, reduzem os postos gerenciais; (ii) práxis social-sistema: pela concepção pragmática-instrumental, as experiências dos Administradores são concebidas a partir do confinamento funcionalista em uma organização-sistema; (iii) emancipação-alienação: tanto a forma naturalizada com que especificam as organizações e sua Administração quanto a práxis interrompida velada em uma experiência reificada mostram-se como fenômenos intrinsecamente e subjetivamente alienantes e contraemancipatórios. Por outro lado, através do movimento de fuga da profissão, os entrevistados parecem (re)significar o silêncio fundador da alienação associada à condição de Administrador: a de pensar como capital, e não se pensar como trabalho. Finalmente, o texto propõe que as possibilidades de emancipação deste profissional residem na tomada de consciência de sua condição como integrante da classe trabalhadora, mesmo em tempos de riscos e incertezas. Assumindo-se como trabalhador, o Administrador poderá lutar pelo seu trabalho, repensando-o em novos termos, em que as dimensões pragmáticas-instrumentais que envolvem sua profissão possam ser dosadas e sempre mediadas por conteúdos substantivos e emancipatórios

Estudo e desenvolvimento de um capacitor eletrolítico de nióbio

It seeks to find an alternative to the current tantalum electrolytic capacitors in the market due to its high cost. Niobium is a potential substitute, since both belong to the same group of the periodic table and because of this have many similar physical and chemical properties. Niobium has several technologically important applications, and Brazil has the largest reserves, around 96%. There are including niobium in reserves of tantalite and columbite in Rio Grande do Norte. These electrolytic capacitors have high capacitance specifies, ie they can store high energy in small volumes compared to other types of capacitors. This is the main attraction of this type of capacitor because is growing demand in the production of capacitors with capacitance specifies increasingly high, this because of the miniaturization of various devices such as GPS devices, televisions, computers, phones and many others. The production route of the capacitor was made by powder metallurgy. The initial niobium powder supplied by EEL-USP was first characterized by XRD, SEM, XRF and laser particle size, to then be sieved into three particle size, 200, 400 e 635mesh. The powders were then compacted and sintered at 1350, 1450 and 1550°C using two sintering time 30 and 60min. Sintering is one of the most important parts of the process as it affects properties as porosity and surface cleaning of the samples, which greatly affected the quality of the capacitor. The sintered samples then underwent a process of anodic oxidation, which created a thin film of niobium pentóxido over the whole porous surface of the sample, this film is the dielectric capacitor. The oxidation process variables influence the performance of the film and therefore the capacitor. The samples were characterized by electrical measurements of capacitance, loss factor, ESR, relative density, porosity and surface area. After the characterizations was made an annealing in air ate 260ºC for 60min. After this treatment were made again the electrical measurements. The particle size of powders and sintering affected the porosity and in turn the specific area of the samples. The larger de area of the capacitor, greater is the capacitance. The powder showed the highest capacitance was with the smallest particle size. Higher temperatures and times of sintering caused samples with smaller surface area, but on the other hand the cleaning surface impurities was higher for this cases. So a balance must be made between the gain that is achieved with the cleaning of impurities and the loss with the decreased in specific area. The best results were obtained for the temperature of 1450ºC/60min. The influence of annealing on the loss factor and ESR did not follow a well-defined pattern, because their values increased in some cases and decreased in others. The most interesting results due to heat treatment were with respect to capacitance, which showed an increase for all samples after treatment

Estudo sobre o efeito dos parâmetros de processamento dos pós e sinterização do aço inox 316l reforçado com NbC

This masther dissertation presents a contribution to the study of 316L stainless steel sintering aiming to study their behavior in the milling process and the effect of isotherm temperature on the microstructure and mechanical properties. The 316L stainless steel is a widely used alloy for their high corrosion resistance property. However its application is limited by the low wear resistance consequence of its low hardness. In previous work we analyzed the effect of sintering additives as NbC and TaC. This study aims at deepening the understanding of sintering, analyzing the effect of grinding on particle size and microstructure and the effect of heating rate and soaking time on the sintered microstructure and on their microhardness. Were milled 316L powders with NbC at 1, 5 and 24 hours respectively. Particulates were characterized by SEM and . Cylindrical samples height and diameter of 5.0 mm were compacted at 700 MPa. The sintering conditions were: heating rate 5, 10 and 15◦C/min, temperature 1000, 1100, 1200, 1290 and 1300◦C, and soaking times of 30 and 60min. The cooling rate was maintained at 25◦C/min. All samples were sintered in a vacuum furnace. The sintered microstructure were characterized by optical and electron microscopy as well as density and microhardness. It was observed that the milling process has an influence on sintering, as well as temperature. The major effect was caused by firing temperature, followed by the grinding and heating rate. In this case, the highest rates correspond to higher sintering.

Estudo da molhabilidade de tecidos 100% poliéster tratados em plasma N2/O2 em função do seu envelhecimento natural

This work reports the influence of the poly (ethylene terephthalate) textile surface modification by plasmas of O2 and mixtures (N2 + O2), on their physical and chemical properties. The treatment was carried out in a vacuum chamber. Some parameters remained constant during all treatment, such as: Voltage 470 V; Pressure 1,250 Mbar; Current: 0, 10 A and gas flow: 10 cm3/min. Other parameters, such as working gas composition and treatment time, were modified as the following: to the O2 plasma modified samples only the treatment time was changed (10, 20, 30, 40, 50 and 60 minutes). To the plasma with O2 and N2 only the chemical concentrations were changed. Through Capillary tests (vertical) an increase in textile wettability was observed as well as its influence on aging time and its consequence on wettability. The surface functional groups created after plasma treatments were investigated using X-ray Photoelectron Spectroscopy (XPS). The surface topography was examined by scanning electron microscope (SEM)

A violência policial militar e o contexto da formação profissional: um estudo sobre a relação entre violência e educação no espaço da Polícia Militar no Rio Grande do Norte

Cette dissertation a pour thème la formation de la police militaire, dans le contexte de l'insertion dans le nouveau programme scolaire national Matrix (MCN) institutionnalisée pour la formation à la securité publique au Ministère de La Justice (MJ) de La Secrétariat Nationale pour La Sécurité Publique, à partir de 2003. Ce normalisateur document devrait être utilisé comme un paramètre de l'organisation de divers organismes éducatifs dans le domaine de la sécurité nationale. Son institutionnalisation pose elle-même comme étant composé comme um ensemble politiques orientées à formation des professionnels de la sécurité publique qui est en cours de développement au Brésil depuis. En particulier, il a été trouvé dans locus, par le méthode de l observation participant à um cours de formation pour les soldats (CFSD) de La Police Militaire de Rio Grande do Norte (PMRN), en Octobre et Novembre 2007, Centre pour Formation et Perfectionner de PMRN ainsi que par le biais d entrentiens avec la police militaire (PM), changé de la formation, comme nous l avons mise en oeuvre de la l'insertion de la MCN, dans le contexte de l analyse de la violence dans la police militaire de Rio Grande do Norte (RN). Les résultats de l'étude montrent que, en général, le MCN est étant insérés dans CFSD partir de 2004, cette opération fait sentir graduellement dans le visage de certains résistence mennée par une sous-culture (militaires) qui se réinvente dans l'établissement officier de police, résistant aux nouvelles exigences sociales. En outre, il a été noté également que les deux mythes sont limitées à l'imagination, la police brésilienne: le militarisme exarcebé et le baccalauréat em droit, qui contribuent considérablement à la barrière dans la construction d'une police militaire plus identifié à l'activité professionnelle dédié à la sécurité publique, que de la sécurité nationale. L'élargissement de la compréhension de la violence, en particulier, la police militaire, le travail rend l'utilisation des références théoriques qui cherchent à embrasser la diversité et la spécificité qui guident le processus de formation pour les opérateurs de la sécurité publique, en particulier, en essayant de comprendre comment ils sont construits les références théoriques pour les formateurs et les stagiaires dans une relation dialectique et comment ce contexte mai influencer les attitudes conceptuelles, d'attitudes et de procédure dans l'exercice de la police militaire, que dans le contexte nouveau de l'Etat de droit démocratique, a réellement vécu en contradiction avec les fantômes du temps exception, réalisée pendant la dictature (1964-1985), non loin de l imaginaire social, et ni la police ni les militaires, une institution fortement stigmatisées depuis

As cidades, os rios e as escolas: um estudo das práticas de educação ambiental nas cidades de Natal e Mossoró-RN

Universidade Estadual do Rio Grande do Norte

O progama empregador de última instância: Sua relevância em tempos de crises financeiras e sua aplicabilidade ao Brasil.

This dissertation aims to continue the work developed previously concerning the properties of the employer of last resort program (ELR) that would be able to promote a complete elimination of the involuntary unemployment from the economy, so much of the unemployment generated by structural problems as for problems of the conjuncture, as the present world financial crisis. Besides, it intends to deepen the study concerning the applicability of that program to the Brazilian economy, estimating their potential target population in the country and the cost with the workers' remuneration. It was presented the ELR theoretical-conceptual structure and a debate concerning their economic viability; the program properties that turn it more efficient than the onetary and fiscal policies (PMFs) in the fight against involuntary unemployment in times of financial crises; a study on its applicability to the Brazilian socioeconomic specificities and an estimate of their potential target population and of the annual wage cost in the country, as a whole, and in the specific case of the Northeast region and of the state of Rio Grande do Norte.

Um estudo sobre as origens da Lógica Matemáitca

The present study has as objective to explaining about the origins of the mathematical logic. This has its beginning attributed to the autodidactic English mathematician George Boole (1815-1864), especially because his books The Mathematical Analysis of Logic (1847) and An Investigation of the Laws of Thought (1854) are recognized as the inaugural works of the referred branch. However, surprisingly, in the same time another mathematician called Augutus of Morgan (1806-1871) it also published a book, entitled Formal Logic (1847), in defense of the mathematic logic. Even so, times later on this same century, another work named Elements of Logic (1875) it appeared evidencing the Aristotelian logic with Richard Whately (1787-1863), considered the better Aristotelian logical of that time. This way, our research, permeated by the history of the mathematics, it intends to study the logic produced by these submerged personages in the golden age of the mathematics (19th century) to we compare the valid systems in referred period and we clarify the origins of the mathematical logic. For that we looked for to delineate the panorama historical wrapper of this study. We described, shortly, biographical considerations about these three representatives of the logic of the 19th century formed an alliance with the exhibition of their point of view as for the logic to the light of the works mentioned above. In this sense, we aspirated to present considerations about what effective Aristotelian´s logic existed in the period of Boole and De Morgan comparing it with the new emerging logic (the mathematical logic). Besides of this, before the textual analysis of the works mentioned above, we still looked for to confront the systems of Boole and De Morgan for we arrive to the reason because the Boole´s system was considered better and more efficient. Separate of this preponderance we longed to study the flaws verified in the logical system of Boole front to their contemporaries' production, verifying, for example, if they repeated or not. We concluded that the origins of the mathematical logic is in the works of logic of George Boole, because, in them, has the presentation of a new logic, matematizada for the laws of the thought similar to the one of the arithmetic, while De Morgan, in your work, expand the Aristotelian logic, but it was still arrested to her

Dos tempos de escola aos dias atuais: reminiscências duradouras da experiência escolar

Este estudo trata sobre as marcas da experiência escolar no processo de individuação do sujeito e tem como objetivo geral conhecer de que forma essas experiências, a despeito das questões curriculares e pedagógicas, influenciam esse processo. Buscou-se interpretar as experiências reforçadas durante a escolarização e as trajetórias de enfrentamento das diversas situações vividas na escola. Tentou-se, também, compreender o sentido dos acontecimentos escolares críticos e igualmente como o meio familiar pode influenciar nas escolhas e formação dos sujeitos através do investimento pedagógico. Ademais, refletiu-se sobre os motivos que levaram alguns a permanecerem no ambiente escolar seja como estudante ou mais tarde, do lado de lá, como professor. Para tanto, foi realizada uma pesquisa qualitativa de inspiração fenomenológica utilizando-se de entrevistas narrativas com quatro sujeitos, a partir das quais se identificou as principais características, estrutura, condições de origem, o contexto social, as estratégias escolares, as formas como foram manejadas e suas conseqüências. A análise dos relatos deixou claro dois eixos fundamentais da experiência escolar que se destacam na constituição dos sujeitos: de um lado a dinâmica do ambiente escolar vivido deixou marcas indeléveis na memória que foram determinantes para as escolhas pessoais; por outro lado, a referência familiar, através das suas várias formas de investimento pedagógico, teve uma influência decisiva. As marcas combinadas da escola e da família deixaram um legado importante para formação dos sujeitos e para as escolhas que fizeram durante as suas vidas, especialmente no direcionamento da suas carreiras profissionais. Invariavelmente, percebeu-se na investigação, que muito do aluno que se foi persiste no adulto e profissional de hoje. Assim, o Eu escolar é parte do Eu profissional que existe em cada um. O cidadão, a pessoa e o profissional são derivados dos processos de socialização e individuação, os quais em grande parte se definem durante a vida escolar. E é com o uso desse "capital escolar" , adquirido nos tempos de escola, que temos condições de desenvolver os muitos papéis sociais nos dias atuais.

Dos tempos de escola aso dias atuais reminiscências duradousras da experiência escolar

This study it treats on the marks of the school experience in the individuation process of the subject and has as general aim to know of that it forms these experiences, the spite of the curricular and pedagogical questions, influences this process. It searched to interpret the experiences strengthened during the school education and the trajectories of confrontation of the diverse situations lived in the school. It was tried,also,to understand the direction of the critical school events and equally as the familiar way can influence in the choices and formation of the citizens through the pedagogical investment. Furthermore, it was reflected on the reasons that had taken some to remain in the school environment are as student or, later, of the side of there ,as teacher. For in such a way, it realized a qualitative research with a phenomenological inspiration using narratives interviews carried with four subjects, from which if it identified the main characteristics, structure, conditions of origin, the social context, the school strategies, the forms as they had been managed and its consequences. The analysis of the stories clearly left two basic axles about the school experience that if detach in the constitution of the subjects: in a hand, the dynamics of the lived school environment left undeleted marks in the memory that had been determinative for the personal choices; on the other hand,the familiar reference, through its different forms of pedagogical investment,had a decisive influence. The agreed marks of the school and the family had left an important legacy for formation of the subjects and the choices that had made during their lives, especially in the aiming of its professional careers. Invariably, it was perceived in the inquiry, that much of the pupil who if was persists in the adult and professional of today. Thus, the school I it s part of professional I that it exists in each one. The citizen, the person and the professional are derived from the processes of socialization and individuation, which to a large extent are defined during the school life. And it s with the use of this school capital , acquired in the school times, that we have conditions to develop the many social roles in the current days

A influência do modelo de triplice hélice no grau de maturidade de inovação: um estudo de caso em empresas participantes do projeto PRÓ-INOVA/NAGI no estado do RIO GRANDE DO NORTE

Public investments in the development of innovation in the country, either through the rigging of public universities, either through public announcements of the promotion, increased dramatically in recent years. To analyze the efficiency and effectiveness of the use of public resources is especially in times of austerity, essential for the development of a country. In this context, this research aims to identify the influence of public investments to promote innovation in the degree of maturity of innovative companies in the state of the RN. Another goal is to identify the regional influence from the installation site - capital or countryside, in the performance of the companies studied in the degree of innovation. The theoretical basis of the understanding of the scope of the concept of innovation and its determination for the purposes of this study. Typology, degree of innovation, evaluation methodologies and mechanisms to support innovation : Still on the theme of innovation additional concepts that help the reader to a greater understanding, such as are presented. Following is approached conceptualization of the triple helix, highlighting the concepts advocated by Etzkowitz and Leydesdorff, Salomon and Silva and Ipiranga, Freitas and Paiva, among others. With regard to methodological aspects, we propose a descriptive, exploratory and explanatory research quantitative and qualitative approach with the target audience group of companies served by INOVA PRO- NAGI design - multi-institutional action from a public resource called FINEP promotes the development of innovative companies in the State of Rio Grande do Norte - in 2013. The research should provide reflection and understanding of the influence of public investment in innovation, which by means of qualitative predictive variables associated with quantitative method to explain which variables are significant variations in the degree of maturity of enterprises studied

Estudo da viabilidade de uso de secadores solares fabricados com sucatas de luminárias

It presents a direct exposure to solar dryer for drying of food, built from a scrap of luminaire. The dryer works under direct exposure to natural circulation. Will be presented their methods of construction and assembly of that dryer that allows the reuse of materials, constituting a environmentally correct recycling dryer main features proposed are its low cost and simple manufacturing processes and assembly. Test results will be presented for the drying of foods that prove the feasibility and cost of thermal solar drying alternative system proposed. It is worth emphasizing the social importance that such application is for the most excluded since the value-added fruits, vegetables, legumes and other foods in relation to fresh may represent an option of income generation. It will also study the transformation of some of dry food meal and demonstrated that the drying times for the foods tested are competitive and sometimes pointed in the solar literature

Estudo de um secador solar fabricado apartir de sucata de tambor de polietileno

The scarcity of farmland, reducing the supply of irrigation water and lack of technologies for conservation, makes the globalized world facing serious difficulties in the production of food for its population. The most viable outlet for this dilemma is the dissemination of technologies, economically viable and available to the whole population, for dehydration of perishable foods produced. This paper presents a solar dryer of direct exposure to the production of dried fruit, made from recycled polyethylene drum of 200 liters, used for storing water or trash. The drum was sectioned in half in its longitudinal axis and has its halves together forming a trough-like structure. It describes the processes of construction and assembly of solar dryer proposed, whose main characteristic its low cost, and was designed for use by people with low income, for processing fruits widely available in our region (mango, banana, guava, cashew, pineapple, tomato and others) in dried fruit and flour, contributing significantly to increase the life of these foods. The nuts and flours can be used for own consumption and for marketing jobs and income generation. Tests were conducted to diagnose the feasibility of using solar dryer for the various types of tropical fruits. Were also compared parameters such as drying times and thermal efficiency obtained with the prototype found in the specialized literature in food dehydration. The drying times in the dryer were obtained competitive with those obtained in other models of dryers LMHES developed

Estudo da reidratação do feijão verde (Vigna unguiculata L. Walp) desidratado por micro-ondas com e sem pré-tratamento osmótico

The green bean has organoleptic and nutritional characteristics that make it an important food source in tropical regions such as the Northeast of Brazil. It is a cheap source of protein and important for nutrition of rural population contributing significantly in subsistence farming of the families from Brazil s northeast. It is consumed in entire region and together with the dry meat and other products composes the menu of typical restaurants, being characterized as an important product for economy of Northeast. The green bean is consumed freshly harvested and has short cycle, being characterized as a very perishable food, which hampers your market. The drying method is an alternative to increase the lifetime and provide a reduction volume of this product making easier your transportation and storage. However is necessary to search ways of drying which keep the product quality not only from the nutritional standpoint but also organoleptic. Some characteristics may change with the drying process such as the coloring, the rehydration capacity and the grains cooking time. The decrease of drying time or of exposure of the grains to high temperature minimizes the effects related with the product quality loss. Among the techniques used to reduce the drying time and improve some characteristics of the product, stands out the osmotic dehydration, widely used in combined processes such as the pretreatment in drying food. Currently the use of the microwaves has been considered an alternative for drying food. The microwave energy generates heat inside of materials processed and the heating is practically instantaneous, resulting in shorter processing times and product quality higher to that obtained by conventional methods. Considering the importance of the green beans for the Northeast region, the wastefulness of production due to seasonality of the crop and your high perishability, the proposal of this thesis is the study of drying grain by microwaves with and without osmotic pretreatment, focusing on the search of conditions of processes which favor the rehydration of the product preserving your organoleptic characteristics. Based on the analysis of the results of osmotic dehydration and dielectric properties was defined the operating condition to be used in pretreatment of the green bean, with osmotic concentration in saline solution containing 12,5% of sodium chloride, at 40°C for 20 minutes. The drying of green bean by microwave was performed with and without osmotic pretreatment on the optimized condition. The osmotic predehydration favored the additional drying, reducing the process time. The rehydration of dehydrated green bean with and without osmotic pretreatment was accomplished in different temperature conditions and immersion time according to a factorial design 22, with 3 repetitions at the central point. According to results the better condition was obtained with the osmotically pretreated bean and rehydrated at a temperature of 60°C for 90 minutes. Sensory analysis was performed comparing the sample of the green bean in natura and rehydrated in optimized conditions, with and without osmotic pretreatment. All samples showed a good acceptance rate regarding the analyzed attributes (appearance, texture, color, odor and taste), with all values above 70%. Is possible conclude that the drying of green bean by microwave with osmotic pretreatment is feasible both in respect to technical aspects and rehydration rates and sensory quality of the product