31 resultados para Grupo heterogéneo
em Universidade Federal do Rio Grande do Norte(UFRN)
Resumo:
Introdução: A obesidade e suas formas extremas como a forma mórbida, vem assumindo preocupação nos sistemas de saúde pública e é atualmente considerado um dos mais importantes agravos de saúde no mundo desenvolvido. Acarreta repercussões em várias partes do corpo, com potencial para interferir negativamente também na função reprodutiva, recentemente sendo mais estudado na população masculina. Objetivo: avaliar parâmetros hormonais e seminais da função reprodutiva em um grupo de homens obesos mórbidos, antes e após 6 meses da perda de peso induzida pela cirurgia bariátrica. Métodos: Inicialmente, de uma amostra de 36 pacientes com idade entre 18 e 40 anos e índice de massa corporal (IMC) ≥40 Kg/m2, apenas 1 caso foi excluído por ser portador de hiperprolactinoma e outros 24 pacientes não completaram todo o protocolo de avaliação laboratorial solicitada. Um total de apenas 11 pacientes completou o protocolo. Todos foram previamente avaliados por uma equipe multidisciplinar. O grupo selecionado foi submetido a avaliação seminal e dosagens hormonais de testosterona total(TT), FSH e LH. Os parâmetros foram reavaliados após 6 meses de realização da cirurgia pela técnica de Y-em-Roux, para análise dos efeitos da perda de peso sobre os parâmetros da função reprodutiva. Resultados: No grupo selecionado ao estudo, os exames pré-operatórios mostraram um grupo heterogêneo de resultados. Após seis meses do tratamento cirúrgico, a perda ponderal foi significativa no grupo analisado, com redução do IMC de mediana 46 Kg/m2para mediana de 36 Kg/m2(p=0,03). Em relação ao perfil hormonal, houve elevação significativa do nível sérico de TT com mediana de 187ng/ml no período pré-operatório para 457 ng/ml (p=0,02) no período pós-operatório. Entre os períodos pré e pós-operatório, não foram observadas alterações significantes do FSH (2,70 mIU/ml para 3,31 mIU/ml, p=0,79), LH (4,82 mIU/ml para 3,00mIU/ml, p=0,39), concentração espermática (38milhões/ml para 31milhões/ml, p=0,88) e motilidade A+B (50% para 50%, p=0,89).Conclusão: A redução ponderal decorrente da cirurgia em obesos mórbidos parece levar a uma elevação dos níveis de testosterona total, sem alterações nas demais provas de avaliação reprodutiva. Estudos adicionais com casuística maior e múltiplos parâmetros são necessários para esclarecimento definitivo do impacto da obesidade e da perda de peso induzida pela cirurgia sobre a função reprodutiva masculina
Resumo:
Pectinolytic enzymes, or simply pectinases, are complex enzymes that degrade pectic polymers. They have many uses, such as fruit juice extraction and purification, textile fiber treatment and vegetal oil extraction. The aim of this work was to study the kinetics of pectinases production by solid-state fermentation, using dry cashew apple residue as substrate and the microorganism Aspergillus niger CCT 0916. The influence of the initial medium moisture and medium supplementation with a source of nitrogen and phosphorus was evaluated using the factorial experimental planning and response surface methodology. Ammonia sulphate and potassium phosphate were used as nitrogen and phosphorus source, respectively. The variables time of contact (T) and ratio volume solvent/fermented medium (RZ), in systems with and without agitation, were evaluated in order to study the best extraction condition of the produced enzyme. Washed and unwashed cashew apple residues were tested as the growth medium. The unwashed residue was obtained by drying the residue after the extraction of the juice, while the washed residue was obtained by water washing 5 times using the proportion of 1 kg pulp/2 liters of water. Samples were taken every 12 hours for moisture content, pH, protein, reducing sugars, polygalacturonase activity (PG) and viscosity reduction. The physical-chemical composition of the residues had different sugar and pectin levels. For the unwashed residue, the peak activity was reached with 40% of initial moisture content, 1% of nitrogen supplementation without phosphorus addition after 30 hours of process. These conditions led to 16 U/g of PG activity and 82% of viscosity reduction. The calculated models reached similar values to the experimental ones in the same process conditions: 15.55 U/g of PG and 79.57% of viscosity eduction. Similarly, the greatest enzyme production for washed residue was reached with 40% initial moisture content, 1% nitrogen supplementation without phosphorus addition after 22 hours of cultivation. In this condition it was obtained polygalacturonase activity of 9.84 U/g and viscosity reduction of 81.36%. These values are close to experimental values that were of 10.1 U/g and 81%, respectively. The conditions that led to the best PG activity results was the agitated one and the best extraction condition was obtained with 100 minutes of solvent/medium contact and RZ of 5 (mL/g)
Resumo:
Autism comprises a heterogeneous group of neurodevelopmental disorders that affects the brain maturation and produces sensorial, motor, language and social interaction deficits in early childhood. Several studies have shown a major involvement of genetic factors leading to a predisposition to autism, which are possibly affected by environmental modulators during embryonic and post-natal life. Recent studies in animal models indicate that alterations in epigenetic control during development can generate neuronal maturation disturbances and produce a hyper-excitable circuit, resulting in typical symptoms of autism. In the animal model of autism induced by valproic acid (VPA) during rat pregnancy, behavioral, electrophysiological and cellular alterations have been reported which can also be observed in patients with autism. However, only a few studies have correlated behavioral alterations with the supposed neuronal hyper-excitability in this model. The aim of this project was to generate an animal model of autism by pre-natal exposure to VPA and evaluate the early post-natal development and pre-puberal (PND30) behavior in the offspring. Furthermore, we quantified the parvalbumin-positive neuronal distribution in the medial prefrontal cortex and Purkinje cells in the cerebellum of VPA animals. Our results show that VPA treatment induced developmental alterations, which were observed in behavioral changes as compared to vehicle-treated controls. VPA animals showed clear behavioral abnormalities such as hyperlocomotion, prolonged stereotipies and reduced social interaction with an unfamiliar mate. Cellular quantification revealed a decrease in the number of parvalbumin-positive interneurons in the anterior cingulate cortex and in the prelimbic cortex of the mPFC, suggesting an excitatory/inhibitory unbalance in this animal model of autism. Moreover, we also observed that the neuronal reduction occurred mainly in the cortical layers II/III and V/VI. We did not detect any change in the density of Purkinje neurons in the Crus I region of the cerebellar cortex. Together, our results strengthens the face validity of the VPA model in rats and shed light on specific changes in the inhibitory circuitry of the prefrontal cortex in this autism model. Further studies should address the challenges to clarify particular electrophysiological correlates of the cellular alterations in order to better understand the behavioral dysfunctions
Resumo:
This work presents a new model for the Heterogeneous p-median Problem (HPM), proposed to recover the hidden category structures present in the data provided by a sorting task procedure, a popular approach to understand heterogeneous individual’s perception of products and brands. This new model is named as the Penalty-free Heterogeneous p-median Problem (PFHPM), a single-objective version of the original problem, the HPM. The main parameter in the HPM is also eliminated, the penalty factor. It is responsible for the weighting of the objective function terms. The adjusting of this parameter controls the way that the model recovers the hidden category structures present in data, and depends on a broad knowledge of the problem. Additionally, two complementary formulations for the PFHPM are shown, both mixed integer linear programming problems. From these additional formulations lower-bounds were obtained for the PFHPM. These values were used to validate a specialized Variable Neighborhood Search (VNS) algorithm, proposed to solve the PFHPM. This algorithm provided good quality solutions for the PFHPM, solving artificial generated instances from a Monte Carlo Simulation and real data instances, even with limited computational resources. Statistical analyses presented in this work suggest that the new algorithm and model, the PFHPM, can recover more accurately the original category structures related to heterogeneous individual’s perceptions than the original model and algorithm, the HPM. Finally, an illustrative application of the PFHPM is presented, as well as some insights about some new possibilities for it, extending the new model to fuzzy environments
Resumo:
Este estudo objetivou conhecer a incidência do evento queda e identificar a presença de seus principais fatores de risco. Estudo exploratório, realizado de março a novembro/2009, com aplicação de um formulário sobre quedas em um grupo de idosos. Os dados foram analisados por cálculo de frequências, média e desvio-padrão. Participaram 62 idosos, 41,9% relataram queda nos últimos seis meses, a maioria mulheres. Identificou-se ocorrência de agravos concomitantes: visão regular, audição boa, polifarmácia, IMC normal, forte força de preensão palmar e condições dos pés adequadas. Na maioria dos que caiu, o desequilíbrio foi apontado como principal motivo. A queda ocorreu mais no período da manhã, em local de piso áspero e seco, sem degraus, rampas ou tapetes, iluminação adequada e o tipo de calçado mais utilizado foi chinelo de borracha. Percebe-se a alta ocorrência das quedas na população idosa, fato que fundamenta a necessidade de avaliação das condições de risco envolvidas
Resumo:
The present study regards an applied qualitative social research (descriptive) which approaches the matter between old age and Brazilian social actions performed in social projects, aiming a qualified life and citizenship for this group of age. The objective of the study is to evaluate the contribution of Project Health and Citizenship in Old Age regarding social actions from the government directed to old age individual treatment for life quality improvement. The theoretical fundamentals of this work is, in a first moment, about old age and certain existing theories about aging process, as well as the differences and perspectives that come up throughout this process. In a second moment, some reflections are developed about the relation between life quality and leisure regarding old age, with the conception and historical rescue about these questions, as well as the evidence of leisure as an instrument of well-being feasibility and a better life quality in old age. Then the study contextualizes Brazilian government treatment to old age individuals, cutting off the Constitution of Republic from 1988 and some social attitudes taken by the government in a try to reach this specific group. Finally, the study presents the Project Health and Citizenship in Old Age , as a social program which belongs to extension activities from Federal Center of Technological Education of Rio Grande do Norte (CEFET-RN), which aims old age treatment and their citizenship and life quality. After the application of a semi-structured interview using the technique of Analysis of content for the Analysis and Discussion of Results, it is possible to conclude that the Project Health and Citizenship in Old Age fulfils its objective regarding contribution, through offered leisure activities, for old age well-being and life quality improvement. Hence, on this regard, it is possible to observe the importance and value of government actions, social projects and programs assisting old age individuals, for they are able to provide this group the opportunity to live out activities that allow their citizenship and socialization, regarding well-being and life quality improvement.
Resumo:
The Solidary Economy is an area that has shown unusual traits to what is preached in the traditional economic organizations, even organizations that have very similar principles, as some cooperatives. This trait is approaching the concept of isonomy proposed by Ramos (1989). Given this context, and the notion that the isonomy is like a ideal type, the objective this work was to evidence particulars of isonomic environment the in economic and solidarity experiences, taking as an empirical research area the Grupo de Mulheres Decididas a Vencer, considered a solidary economic enterprise. For this, we used the descriptive-exploratory research of qualitative nature, where the object of such research is the know enterprise, therefore, also characterized as a case study, which were taken as research subjects six associates, they being the most active in the enterprise. From the five categories that characterize isonomy - minimum standards prescribing, self-gratifying activity, activities undertaken as a vocation, wide system of making decision and primaries interpersonal relations - and from the traits of a solidary economic enterprise the data analysis was built, through content analysis, specifically the categorial analysis. Given this context and reality in which it is Grupo de Mulheres Decididas a Vencer, with minimal rules and procedures for conducting activities, comparing them to a therapy, women choosing to insert in that environment, faced with a democratic space and unfettered bureaucracy in professional interpersonal relationships, in others words, an organizational space where they were shown signs of substantive rationality was possible to conclude that the Group will share experiences and characteristics of isonomy. This disclosure meets the multidimensional social that presupposes Paraecomomic Paradigm, enabling man to enter in different social environments of the economy in order to search for self-actualization
Resumo:
The main objective of the study about the citizenship development in elderly attended by the Conviver Program of the City Hall of Campina Grande in Paraiba, Brazil was to evaluate how the actions of the Program contribute for the citizenship practice according to the users. The Citizenship analyzed is the existence of political, civil and social rights according to Marshall. For that it was utilized a descriptive research and a study of case based on technical procedure. The research was settled by the people who are benefited by the Conviver Program of the Snow Hair Group and the sample was formed by the active participants that it is in the Group for over ten years, corresponding to a total of ten elderly. For the data collection was utilized basic questionnaire in function of the low schooling of the interviewed, according to Marshall (2002) theory about the citizenship construction from each person. It was utilized the methodological procedure proposed by Bardin (2006), categorical analysis, in the qualitative data analysis, that was divided in four parts. In relation to Political Rights, noted that the program has stimulated your Watched on the exercise of voting and being voted. On the Civil Rights was observed that the Program has given incentive to actions which provide the users the justice rights in and in occupational activities as a job. In relation to Social Rights it was observed that the Conviver Program has contributed in order that its users can lead their lives according to the standards imposed by the society, which have being failed in the education area. As for the type of citizenship it was verified that the Program has given incentive to the served users, becoming more evidence on the speech basis
Resumo:
The Women s experiences in the private sphere under the work s field changes the family relationship allowing them more freedom, autonomy and independence. The inequalities, socially built, homemade women s obligations results in discrimination, difficult to insert and recovery on female s job in a job s market, including low salary if compared with men s and difficult to services access in addiction a difficult daily life and in domestic sphere. The women s organisation in productive groups or economically solidary enterprises (ESE) torn possible the social economically organisations and politicians to promote deep changes in a domestically e socially relationship, positioning, for example, women s in publics areas and in the rout of emancipation. The objective of this search are understand men and women relationship in the family agriculture s field starts insert women in economically solidary enterprises (ESE) on Mulunguzinho s settlement (Mossoró/RN). The theoretical framework is inspirited Economical Solidary concept kind division s job and women s empowerment. This search had a qualitative character and exploration through case s study on Mulheres decididas a vencer s group. The secondary information was create through theoretical framework and information collected through semi-structured interviews based in interviews applied for women and yours respective husbands by criterion for women participation on productive activities of beekeeping culture of goat and sheep. This study turns possible conclude that the women s participations in productive groups in solidary economical change significantly their life and their family life. The group s organisations process, the training was received, the collective production, the marketing and the mobilized participation to move it all was fundamental for women share with their families partners some homemade and take care with the children. This finding confirm a different aspect not economical in solidary economy overcoming the monetary value in associative relationship observing principally individuals well-being and the concern with the form of reproduction this way of life in the associated
Resumo:
Cette recherche a pour but d analyser l Ecole Augusto Severo, située dans la ville de Natal dont la construction date de 1907,étant le premier établissement d enseignement primaire à l état du Rio Grande do Norte, pendant le processus de restructuration de l enseignement républicain. On cherche à comprendre la représentation de ce milieu scolaire, comme équipement urbain, dans le processus de modernisation de la ville et comme modèle éducationnel pour l état entre 1908 et 1913. En se servant des études historiographes sur le processus de modernisation de quelques villes brésiliennes et des innovations de l enseignement public primaire au pays, à la fin du dix-neuvième siècle et pendant la première décennie du vingtième siècle, comme source pour mieux saisir le contexte général et spécifique. On reconstitue les aspects économiques, sociaux et politiques déterminants des interventions publiques réalisées dans cette ville par les gouvernements républicains ayant comme obectif la construction d une ville embellie,hygiénique et civilisée. Située au quartier Ribeira, principal scénario de la modernité de Natal, l Ecole Augusto Severo est mise em relief comme symbole de civilité du paysage urbain de l époque pour le citoyen du Rio Grande do Norte. Elle disposait de services d énergie et d un tram électrique. Il y avait devant, un grand lac arborisé et une station ferroviaire. A côté, il y avait le théâtre Carlos Gomes (actuellement Alberto Maranhão). Par suíte de son imposante architecture, raffiné style éclectique,on reflète l idéal républicain des elites locales, avec une conception d espace symbolique et éducative de surveillance et contrôle, caractéristiques de l école graduée républicaine
Resumo:
The issue of creating productions of hybrid matrices has demanded, for more than three decades, the attention of several theater theorists (COHEN: 1995; LEHMANN: 2007). The study of philosophers (DELEUZE & GUATTARI: 1995) has contributed for new concepts of the scene. These artistic practices, depending on the context, have been generating, more and more, new ways of staging. I will discuss the contamination caused by Antonin Artaud in contemporary theater, and the theater s infection by the performance, based on the thought of Barbara Browning (1995), from its capacity to penetrate and invade territories, and installs a new system. I affirm that the Totem Group (Recife PE) was contaminated by the performance and analyze two performative plays of the group, their points of convergence and separation. The first one is Ita, the search for the origin, the animal devir; the second is Caosmopolita, the body as a reflex of urbanity
Resumo:
This paper aims at studying UFRN Parafolclórico Group, whose aesthetic formation is subjected to our analysis, specially at its two last performances, that is, Flor do Lírio (Lily Flower), 2004, and Debaixo do Barro do Chão (Under the Mud of the Ground), 2008. Three targets are envisaged here: to analyze the aesthetic ideas backing Parafolclórico Group exhibitions; to evaluate how their many folk elements interact with different artist languages in order to compose a certain choreography; and finally, to identify the aesthetic conformation placed behind the two different choreographs of the last performances, their trends and innermost features that differentiate them. In accordance with the Analysis of Contents (BARDIN, 2006), interviews have been made with the choreographers and the staff of the spectacles, resulting in elucidating answers to the understanding of their thematic axis. On the first chapter we called attention to motivating subjects as recollection, personal experiences, bibliography research, research in loco regarded as propelling forces of the creative works. Herein, folk culture is depicted as a dynamic process opening a frank dialogue with contemporary events and reinforcing their continuity. On the second chapter, we approached the aesthetic conformation and the scenic elements (costumes, light, scenario, make-up), integrating the studied spectacles and disseminating folk songs in various ways. As what concerns the subjects discourse, we have obtained support in authors like Robatto (1994); Lobo; Navas (2008); Burke (1989); Canclini (2006); Dufrenne (2005); Medeiros (2005); Pavis (2005); Silva (2005), among others. Those authors have provided us with an indispensable theoretic support which, added to the interviews, convinced us that the Parafolclórico Group s aesthetic conception tends to identify itself with the artist languages and other techniques of that Group. It also made sure that the Group s course aims at an aesthetic conception which is not limited to popular culture manifestations, like dance, but admits to play with other media in order to communicate its art. In view of this situation, we arrived to two conclusions: first: the group s interchanges emphasize the dynamic character of popular culture which, by establishing contacts with different realities, receives influences capable of extending its own continuity; second: the contemporary state of arts also improves multiple interchanges opening way, so, for many accomplishments in their field. Therefore, UFRN Parafolclórico Group inserts itself in the contemporary scenery by performing new evaluations of the popular dances as long as it puts them in contact with different technical, aesthetic, artist and culture combinations
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Resumo:
In theory say the education as a knot of meanings made in the body. We take as a reference for demonstration of this argument the shows Folguedos, Guarnicê and Flor do Lírio and built within such spectacles cultural, symbolic and aesthetic meanings, which reveal the education woven in the body. Education that can happen not only in the formal space like the classroom or the university, but also in the area of art and the inclusion of individuals in the world of culture. So during the construction of the thesis we reflect on the following issues: what is the construction of culture and art that have in the Parafolclórico group? What way theses shows in their buildings bring significant elements that might compose an educational activity. How objectives sought asking the dichotomies present in the concepts of art and culture; critically systematize a work of artistic, cultural and educational production in the group, in addition to expanding the understanding of education, considering the body experiences. The phenomenological attitude of Merleau-Ponty, is a reference methodology of this study, which places the reference knowledge as a result of our experience in the world, our world lived. Thus, this study considers the experience of the researcher in the three shows in tariff, represented by scenes described, as a dancer and spectator. Therefore we understand that Folguedos, Guarnicê and Flor do Lírio in their artistic, aesthetic and cultural languages, allow many meanings that occur in the body, which invites the perception and extend the experience of the subject, demonstrating an education that allows sight and knowledge, seeking new sensations and experiences, we show our intimacy with the world, with the objects and with the other. The art is understood as virtuality, as a human creation that carries the reality and that allows many readings and experiences, each perception can recognize and know new horizons, having as base and material the culture. This entails the heterogeneous, is not closed but that individuals can interpret it entered and recognize the symbols they created the same way, confirming a unit. The art and culture show us significant evidences of an education woven in the body
Resumo:
mongst the trends in Mathematics Education, which have as their object a more significant and criticallearning, is the Ethnomathematics. This field of knowledge, still very recent amongst us, besides analyzing an externalist history of the sciences in a search for a relationship between the development of the scientific disciplines and the socio-cultural context, goes beyond this externalism, for it also approaches the intimate relationships betwe_n cognition and culture. In fact, the Ethnomathematics proposes an alternative epistemological approach associated with a wider historiography. It struggles to understand the reality and come to the pedagogical action by means of a cognitive approach with strong cultural basis. But the difficulty of inserting the Ethnomathematics into the educational context is met by resistance from some mathematics educators who seem indifferent to the influence of the culture on the understanding of the mathematics ideas. It was with such concerns in mind that I started this paper that had as object to develop a curricular reorientation pedagogical proposal in mathematics education, at the levei of the 5th grade of the Ensino Fundamental (Elementary School), built from the mathematical knowledge of a vegetable farmers community, 30 km away from the center of Natal/RN, but in accordance with the teaching dimensions of mathematics of the 1 st and 2nd cycles proposed by the Parâmetros Curriculares Nacionais - PCN: Numbers and Operations, Space and Form, Units and Measures, and Information Treatment. To achieve that, I developed pedagogical activities from the mathematical concepts of the vegetable farmers of that community, explained in my dissertation research in the period 2000 through 2002. The pedagogical process was developed from August through Oecember 2007 with 24 students of the 5th Grade of the Ensino Fundamental (Elementary School) of the school of that community. The qualitative analysis of the data was conducted taking into account three categories of students: one made up of students that helped their parents in the work with vegetables. Another one by students whose parents and relatives worked with vegetables, though they did not participate directly of this working process and one third category of students that never worked with vegetables, not to mention their parents, but lived adjacent to that community. From the analyses and results of the data gathered by these three distinct categories of students, I concluded that those students that assisted their parents with the daily work with vegetables solved the problem-situations with understanding, and, sometimes, with enriching contributions to the proposed problems. The other categories of students, in spite of the various field researches to the gardens of that community, before and during the pedagogical activities, did not show the same results as those students/vegetable farmers, but showed interest and motivation in ali activities of the pedagogical process in that period