Pesquisa odontológica no Brasil: características da produção científica no início do século XXI

Dentistry, as a science and field of knowledge, has presented a substantial development in the last decades in the areas of research and education. The aim of this study was to evaluate the Brazilian scientific production in Dentistry, as from their methodological outlining, which characterizes the XXI Century. Five thousand two hundred and three study abstracts were evaluated, comprising works presented in the meetings of the Brazilian Society of Dentistry Research (SBPqO), during the period of 2001 to 2006. The main results identify that, as for the methodology used in the researches, there was a predominance of the studies of an individuate, interventionist and longitudinal nature; of the researches in the areas of Dentistry, Periodontology, Endodontics, Pedodontics and Collective Oral Health and experimental studies about clinical researches or with collective subjects. The inter and multidisciplinarity are pointed out in the outlining of this study, as the triad Education-Health-Research is discussed, so that they transcend in their fields of action, in the direction of the transdisciplinarity. It is concluded that, in the studied period, there was a reasonable and balanced production in Brazilian dental field

Avaliação de efeitos de um extrato aquoso de cinnamomum zeylanicum L. na marcação de constituintes sanguíneos com tecnécio-99m e na morfologia das hemácias de ratos wistar

Radiobiocomplexes are used to obtain images in nuclear medicine and employed in basic research. Blood constituents labeled with technetium-99m (99mTc) have also been employed as radiobiocomplexes and used also experimental model for evaluation of the biological effects of natural or synthetic drugs. The analysis of the morphology and the morphometrics parameters (perimeter/área ratio) can be used to evaluate the effects of drugs upon the structure of the membrane of red blood cells. Cinnamomum zeylanicum (cinnamon) is a spice used as herbal medicine to treat diseases. The aim of this study was to evaluate the effect of in vitro and in vivo treatment with an aqueous cinnamon extract on the labeling of blood constituents with 99mTc and on the morphology of red blood cells from Wistar rats. In the in vitro treatment, isolated blood sample from animals were incubated with cinnamon extract. In the in vivo treatment, blood samples were also withdrawn from animals treated with cinnamon extract. In both cases, the radiolabeling of blood constituents was done. The morphological analysis of red blood cells was also done. As control, blood or animals treated with NaCl 0.9%. The data obtained on the labeling of blood constituents with 99mTc experiments indicated that the in vitro treatment with cinnamon extract was capable to decrease signiicantly (p<0.05) the percentage of radioactivity in cellular compartments and on the fixation of cellular and plasma proteins. These effects were not observed on the in vivo treatment. The results obtained for the morphology of red blood cells suggest that the in vitro and in vivo treatments did not alter the morphology and the perimeter/area ratio. The in vitro treatment with aqueous cinnamon extract could affect the membrane structures related with the oxidation status of the stannous ion pertechnetate ion, altering the labeling of blood constituentes with 99mTc. This study was a multidisciplinary experimental research. It was developed with the contribution of the different Departments and Services of the Hospital Universitário Pedro Ernesto of the Universidade do Estado do Rio de Janeiro

Estudo de efeitos de um extrato de Arctium lappa (Bardana) na marcação dos constituintes sangüíneos com Tecnécio-99m, na biodisponibilidade do radiofármaco pertecnatato de sódio e na morfologia de hemácias de ratos Wistar

Radionuclides have been used in Nuclear Medicine for diagnostic and treatment. In basic research, cellular and molecular structures are labeled with technetium-99m (99mTc) and used as radiobiocomplexes. Some natural or synthetic drugs are capable to alter the labeling of blood constituents with 99mTc, as well as in the biodistribution of radiobiocomplexes. Arctium lappa (Bardana) has been used to treat inflammatory processes. The aim of this work was to evaluate the effects of an extract of Bardana on the labeling of blood constituents with 99mTc, on the morphology of red blood cells, on the perimeter/area ratio of red blood cells and on the biodistribution of radiophamaceutical sodium pertechnetate in Wistar rats. Extract of Bardana was capable to alter the labeling of cellular compartment with 99mTc. Plasma and cellular proteins did not present alteration on the percentage of radioactivity (%ATI). Extract of Bardana was also capable to alter the morphology and the perimeter/area ratio of red blood cells. On the biodistribution of sodium pertechnetate in animals treated with the extract of Bardana, it was observed a small and significant uptake in liver, tooth and tongue, and a high and a significant uptake in stomach, lung and testis (p<0.05). In conclusion, these findings could be justified due to the effects of some chemical compounds in the Bardana extract. This study was a multidisciplinary experimental research. It was developed with the contribution of the different Departments and Services of the Hospital Universitário Pedro Ernesto of the Universidade Estadual do Rio de Janeiro

Estudo de efeitos de um extrato aquoso de farinha de casca de maracujá (Passiflora edulis f. flavicarpa) na marcação de constituintes sangüíneos com Tecnécio 99m, na morfometria das hemácias e na biodisponibilidade do radiofármaco Pertecnetato de Sódio em ratos Wistar

Blood constituents labelled with technetium-99m (99mTc) has been used with radiobiocomplexes in several procedures in nuclear medicine. Some natural and sintetic drugs are capable to interfere on the labeling of blood constituents with 99mTc, on the morphology of red blood cells (RBC) and on the biodistribution of radiobiocomplexes. The aim of this study was evaluate the effect of an extract of Passiflora edulis f. flavicarpa on the labeling of blood constituints with 99mTc, on the morphology of RBC and on the biodistribution of the radiopharmaceutical sodium perthecnetate in Wistar rats. On the in vitro studies the Passiflora edulis f. flavicarpa decreased significantly (p<0.05) the %ATI on plasma proteins and on the in vitro morhology of RBC, the passion fruit peel flour altered the shape and the perimeter/área ratio. On the in vivo estudies the extract did not altered the %ATI in blood constituents, and did not altered the shape of RBC. Although, on the biodistribution of the radiobiocomplex sodium perthecnetate (Na99mTcO4) this extract decreased significantly (p<0.05) the uptake in duodenum, spleen, pâncreas and blood, and increased the uptake in stomach. It can be suggested that the effects presented by this extract could be a result of some substances contained in this extract that could alter the binding of 99mTc to plasma proteins, the morphology of RBC and the biodistribution of the radiobiocomplex sodium perthecnetate. This study was multidisciplinary experimental research. It was developed with the contribution of different Departments and Services of the Hospital Universitário Pedro Ernesto of the Universidade Estadual do Rio de Janeiro

Avaliação de efeitos DW extratos de sambucus australis E sambucus nigra na marcação de constituintes sanguineos com tecnécio-99M, na morfologia de Hemácias de ratos wistar, na topologia plasmidial e na ação do cloreto estanoso no DNA Plasmidial

Radiobiocomplexes are used in nuclear medicine to obtain images and to treat diseases. Blood constituents have been used as radiobiocomplexes. Natural or synthetic products can influence on the labeling of blood constituents with technetium-99m (99mTc), the morphology of red blood cells and on the stannous chloride (SnCl2) action on plasmid DNA. Sambucus australis and Sambucus nigra are used in popular culture for treating diseases. The aim of this work was to evaluate the effects of the extracts of Sambucus australis and Sambucus nigra on the labeling of blood constituents with 99mTc, on morphology of red blood cells of Wistar rats, on the topology of plasmids DNA and the action against the SnCl2 effects on the DNA of plasmids pBSK. On the labeling of blood constituents with 99mTc it was verified that both extracts were capable to decrease significantly the radioactivity in the cellular compartment and in the insoluble fraction of plasma. Sambucus australis also decreased the labeling of insoluble fraction of blood cells with 99mTc. Both extracts did not alter the morphology of red blood cells. Moreover, it was verified that Sambucus nigra did not alter the electrophoretic profile of plasmid DNA, but decreased the effect of SnCl2 on plasmid DNA. These last results sugest a genotoxic effect and a protective action of Sambucus nigra extract against the SnCl2 action on plasmid DNA. This work was developed with the contribution of several Departments of biomedical area of the Hospital Universitário Pedro Ernesto, of the UERJ, characterizing a multidisciplinary experimental research

Efeitos de um extrato aquoso de porangaba (Cordia salicifolia) na marcação de constituintes sanguíneos com tecnécio-99m e na morfologia de hemácias

Effects of a Cordia salicifolia (porangaba) extract on the labeling of blood cells (BCs) with technetium-99m ((99m)Tc) and on the morphology of red BCs were evaluated. Labeling of cellular and molecular structures with (99m)Tc depends on a reducing agent. Some physical characteristics, as visible absorbance spectrum, electric conductivity, and refractive index of this porangaba extract, were also determined. Blood samples from Wistar rats were incubated with porangaba extract or with 0.9% NaCl (control). Labeling of blood constituents with (99m)Tc was performed. Plasma (P) and BCs, both soluble (SF-P and SF-BC) and insoluble (IF-P and IF-BC) fractions, were separated. The radioactivity in each fraction was counted, and the percentage of radioactivity incorporated (%ATI) was calculated. Blood smears were prepared, fixed, and stained, and the morphology of the red BCs was evaluated. Data showed an absorbance peak at 480 nm and electric conductibility and refractive index concentration-dependent. Porangaba extract decreased significantly (P < .05) the BC, IF-P, and IF-BC %ATI, and no modifications were verified on the shape of red BCs. Analysis of the results reveals that some physical parameters could be useful to aid in characterizing the extract studied. Moreover, it is possible that chemical compounds of this extract could have chelating/redox actions or be capable of binding to plasma and/or cellular proteins

Projeto Prevenir: uma pesquisa acerca das mudanças no perfil das infecções por DST/AIDS, com a perspectiva de detectar pontos vulneráveis da prevenção

Rio Grande do Norte is among the Brazilian States where the tourism and sexual violence increasingly grow in the country, occupying 4th place in 2004. Associated to this fact, it comes the problematic one of the contamination of the women by Sexually Transmitted Disease (STD). Studies in Brazil have presented a considerable increase of the STDs, caused through lack of suitable protection in the sexual relationships. Due to the biological and psychosocial vulnerability, besides failures or inconsistencies in the condom use associated to the raised taxes of sexual activity with different partners, the STDs constitute the main risk of health. Many difficulties are found by the confrontation of this problem. In this context, this project had as aim to evaluate the vulnerability of this population of sexually active women in Natal-RN Ponta Negra neighbourhood to the infections by STDs, such as, Candida sp., Vaginoses Bacterial, Trichomonas Vaginalis and Chlamydia sp., arisen with the explosion of the sex market, showing a current statistical panorama. It was possible to detect vulnerable points in prevention through patient anamnesis, where the study it showed: high number of partners (8,3% with more than five), low age of first relationship and not the use of condoms (31,8% sometimes use and 45,8% had not used in the first relationship). Already consolidated by the preventive cytopathologic examination, these data were strengthened by high incidence of causing agents of STDs (58,6%). In this way, it is clear that the sexuality must to be thought on the context of the deep economic and socio-cultural transformations in which pass societies, and mainly the ones concerning to the sexuality exercise and to the sex market. With the profile change of the infections, new demands are placed in relation to the risk factors. Therefore, it can be concluded that the prevention vulnerable points detected as more important had been the deficiency in self-perception and wareness of the risk existence among the studied women

Saberes pedagógicos/comunicacionais, pesquisa/formação: reflexões sobre as experiências formativas das professoras online

The thesis, entitled, Pedagogical/comunication knowledge, research/formation: Reflections on the formative experiences of teachers online , developed dialogues on the pedagogical/communication knowledge, research-formation and the formative experiences of teachers online, for the purpose of understanding how pedagogical/communication knowledge is establishing/established from the formative experience of teachers online. For this reason we began with the following question: how does pedagogical/communication knowledge become estabilishing/established beginning with the formative experience of teachers online? The methodological approach for the selected research was research/formation, based on Ethnoresearch of critical formation. This became a rich route for reflections on pedagogical/communication knowledge and formative experiences, making a contribution for formation and autoformation of the teacher/researcher and the teachers online. This provided moments of formation, of reflection-in-action and on the action, potentialized/structured the process of comprehending, analyzing, interpreting, reflecting on the formative experiences and contributing for reflections on pedagogical/communication knowledge of the teacher online. The theoretical referential dialogue was based on concepts such as: education online, interactivity Silva (2002), Santos (2005), Moran (2003), teaching, Veiga (2005), Pimenta (2002), Freire (2005), Tardif (2002), teaching online Sacramento (2006), teaching knowledge Tardif (2002), Charlot (2000), Porlán (1997), García (1992), Freire (2005), Ethnoresearch-formation Macedo (2000), formation Macedo (2010), Josso (2010). The discoveries revealed that the pedagogical/communication knowledged becomes establishing/established beginning with formative experience of the teachers online, from the emergency of a collective communicative dialogue, structuring and potentialized by the experiences of the context online, from the didactic pedagogical/communicational organization online, of the research, of the relation created by the expertise and the presents itself along the itinerary of the family , the school, academic and professional. From this we can conclude that of knowledge and plural experiences, which became broken down because they are parts that relate themselves with other parts, which become united in one whole, the singular/plural, the local/global, the text and the context, agregating principles a pedagogical- communication perspective that orients :the dialogue, the interactivity, the hypertextuality, themultivocallity, formative dispositions, formative experiences all of wich makes for the possibilities for researdh and the training of professors and teachers who accept their point of departure and enddind points as pedagogy and experience

Memorial de formação: um dispositivo de pesquisa ação - formação

La recherche prend comme point de départ la dimension formative du mémoire de formation, considerée comme constitutive de l´écriture de soi, et cherche à problématiser cette dimension au tour du questionnement suivant: Comment le mémoire de formation devient-il un instrument de recherche-action-formation? Les analyses s´appuient sur les principes théoriques du paradigme anthropoformateur, proposé par Pineau (2005), les études réalisées par Passeggi (2006ª, 2006b, 2007, 2008ª, 2008b) sur les mémoires, les travaux de recherche de Nóvoa (1988, 1995), de Josso (2004), de Souza (2006) et de Fontana (2000), qui conçoivent la formação du point de vue de l´ apprenant. L´univers de la recherche s´est circonscrit à la situation de formation des éducateurs de la zone rurale, étudiants en Pédagogie dans le PROFORMAÇÃO (CAMEAM), à l´Univeristé de l´Etat du Rio Grande du Nord (UERN), pendant le second semestre de 2005. La recherche a croisé diférents types de démarche pour recueillir les données empiriques: l´observation du processus d´élaboration des mémoires; un questionnaire; des entretiens informels avec les enseignants en formation et avec les formateurs; et 09 mémoires, écrits par les participants de la recherche. Les analyses des données empiriques montrent que l´écriture des mémoires, en tant que démarche de recherche-action-formation, révelent que la dimension formative se dédouble en d´autres dimensions: etnosociologique, heuristique, herméneutique, social et afective, autopoiétique et politique. Dans la quête de soi (recherche), mise en oeuvre dans et par l´écriture (action), chaque narrateur construit de nouveaux sens à la vie et (re)signifient les représentations de soi (formation). Les résultats confirment la richesse et les potentialités du mémoire, même dans des conditions non ideal, ce qui permet d´affirmer as valeur travail académique important dans la formation des enseignants

A videobiografia como dispositivo de pesquisa-ação-formação: uma prática educativa com adolescentes abrigados

The focus of this thesis is a production of video biographies with/by sheltered teenagers. The general objective is discuss the potential production of video biographies while a device of research-action-formation. From de point of view of research, the study interrogates cultural practices that demarcates the passage of teenagers in shelter institutional; From the point of view of action, seeks to identify the modes of appropriation of space for audiovisual creation by teenagers; and, from the point of view of formation, asks the potentiality of audiovisual language while the way from which teenagers can auto-configure themselves responsibly, in the reinvention of places and others worlds for them. The research falls in the intersection of qualitative approach of ethnographic and of research-action-formation. Is anchored theoretically in autobiographical approaches - Pineau (2005); Passeggi (2008); Delory-Momberger (2008); Josso (2010) e Bertaux (2010) - and in the filmic method - Ramos (2003); Wohlgemuth (2005) and Comoli (2009). Participated in the research eleven teenagers members of the production cycle of biographical traces, among these, the three teenagers who advanced to cycles of audiovisual recording life narratives and reflective exercises around produced reports, procedures of which we extract the set of empirical material analyzed The analysis revealed that teens use in under three types of practices: the practices of mess , as way of expression; the practices of evasion , as resistance to restraint the right to come and go, and the practices of claim a regime of "truth" to the institutional environment, which emerge as a survival tactic in the face of paths desvínculos, family abandonment and neglect. The study also showed the appropriation of spaces of audio-visual creation meaningful expression through music by teenagers and encourage dialogue between and with the teenagers and the achievement of reflective exercises focused for awareness of their stories in becoming. These findings show a broader sense the thesis that visual language is a potent mobilizer artifact reflections and empowerment of individuals in situations of social exclusion

Conhecimento dos adolescentes sobre métodos contraceptivos: pesquisa-ação em uma unidade do programa saúde da família de Natal

It is a descriptive study with a qualitative approach, and an action-research type, which aimed to analyze the changes of knowledge about contraceptive methods invested to a teenager group attended in Igapó Family Healthcare Unit, in the city of Natal/RN, after consent and institutional assent of Ethics Committee of Rio Grande do Norte Federal University (Protocol No. 131/07). It were researched 16 teenagers of both sexes, with age ranging from 11 to 16 years. We used two structured questionnaires, one in the initial diagnosis and another during the seven meetings of the focus group, in addition to the field notes and the meetings discussions transcriptions. The data-collection was performed in the period of two months by a team composed by a nurse the research coordinator, a dentist, a nursing assistant, a community-based healthcare worker and a nursing academic. The quantitative and qualitative data were organized, tagged and categorized into spreadsheet in Microsoft Excel, being held a thematic analysis of speeches performed by the study participants. The results were presented as tables, graphics, photos, drawings and word clippings. The educational strategy developed in focus group allowed adolescents to discuss, exchange ideas and opinions on several contraceptive methods, providing expansion in knowledge of all contraceptives discussed, especially those natural and surgical, which were less mentioned at the beginning of the study. Among the advantages of the contraceptive methods listed by teenagers, was highlighted avoiding pregnancy and STDs in use of the barrier method of condom. As for the disadvantages more frequently noted by the survey with the misuse of barrier methods, was highlighted get pregnant, acquire STD's and do not prevent STD's in hormonal, natural and surgical methods. Adolescents showed consistency between the advantages and disadvantages and types of contraceptive methods, showing a widening in knowledge among them. It may be said that, in general, those surveyed had a good understanding about the use of the various contraceptive methods. Thus, the study participants had positively evaluated all the criteria used to qualify the meetings in the focus group. The action strategy of the focus group should be encouraged by professionals who work with teenagers, since they prefer to live in groups, one characteristic of adolescence.

Sistematização da assistência de enfermagem (SAE) em um hospital pediátrico de ensino: uma pesquisa-ação

The incessant search if nurse for qualify nursing care makes the Nursing Assistance Systematization, a current topic of discussion throughout the country, not only in order to comply the legal requirements of their practice, but especially by the expected benefits of its application. In this meaning, this research had a qualitative approach, developed for a way of research-action. The general purpose was to analyze the change in the nursing practices in a pediatric teaching hospital, based on construction and implementation of Nursing Assistance Systematization by the nursing team. The results had the thematic analysis of Paulo Freire and were shown in the form of reports. To achieve these purposes, it began by steps pre-trial, to review the charts of the institution and an approach with the managers. In the situational diagnosis of nursing practices without the systematization followed by applying a questionnaire with a nursing team and a focal group with nurses. These ways supported the implementation stage of the Nursing Assistance Systematization which developed actions associate such as focal group with the nurses about the nursing history, capacity with the nursing team about the Nursing Assistance Systematization, development, application and reworking of printed, and discussions in the small groups. The evaluations of the changes after the actions of the research occurred through individual interview with the nurses, to check the results. The charts review confirmed the deficit in the records performed by the nurse on the chart, which reinforced the need for implementation of Nursing Assistance Systematization, an argument used on the meeting with the managers, who promptly agree with the search. The questionnaire and the focal group with the nurses reveal a process of nursing work without systematization, showing gaps in practices, but also obtained relate of expectations of improvements in quality of care as of Nursing Assistance Systematization, furnishing data to the development of ways following-up. The prints were gradually used and modified as the team understood the Nursing Assistance Systematization and its purposes through capacity course. The final evaluation pointed to the partial implementation of the stages of Nursing Assistance Systematization had been institutionalized at the history and the development of nursing, beyond difficulties with diagnosis and prescription of nursing, in later representing a paradigm shift. This search collaborated to change the view about the Nursing Assistance Systematization by nursing team at the institution had been revealed through introduction of new practices in the process of nursing work, as examination of physical exam of the patient, the interview in the admission of customers on service and the daily monitoring by nursing through development of nursing. Before addition, it was noted which the purposes of this search were achieved, since were analyzed the changes in the nursing practices with the systematization. The research-action achieved proposes of the involvement of nursing team in changing their practices. This search contributed to the implementation of the Nursing Assistance Systematization in a pediatric teaching hospital and showed which is possible to seek resolution of problems when the objective is of the group and gave access for further searches within this theme

O cuidado compartilhado entre mães e educadoras de um centro municipal de educação infantil: uma pesquisa-ação

O cuidado à criança envolve a identificação e o atendimento às necessidades de modo a oferecer-lhe atenção como pessoa em contínuo processo de crescimento e desenvolvimento. Contudo, o cuidado oferecido à criança que convive em instituição escolar está permeado por conflitos que fragilizam a relação família-escola, não sendo estimulada a articulação desses atores no que refere ao cuidar da criança. Diante dessa problemática, objetivou-se analisar a construção de um pacto do cuidar entre mães e educadoras de crianças que frequentam um Centro Municipal de Educação Infantil. Trata-se de um estudo qualitativo, tendo como método a pesquisa-ação. Envolveu doze mães e oito educadoras de uma instituição de educação infantil de Cidade Nova, no município de Natal, no período de abril a novembro de 2013. Os dados foram coletados através de entrevista grupo focal, observação participante, seminários e diário de campo. Os resultados foram analisados seguindo o direcionamento da análise temática freireana. Na etapa do diagnóstico situacional, que investigou a realidade vivenciada pelas participantes do estudo, percebeu-se que as educadoras não se sentem preparadas para lidar com aspectos de saúde-doença da criança e recusam as ações de cuidado como desempenho de suas funções, interpretada como uma atitude que ultrapassa sua competência profissional. Os pais, por sua vez, apresentaram dificuldade de entendimento e clareza da sua função e relação com a instituição e executam as ações de saúde sem associá-lo à promoção e prevenção, além de realizarem com conhecimento empírico. Vista a necessidade de mudança das ações de saúde prestadas à criança, decidiu-se conjuntamente, através de uma roda de conversa, realizar capacitações sobre higiene e limpeza, medidas caseiras no cuidado à criança e primeiros socorros. Na etapa de implementação da ação coletiva as participantes consideraram as atividades úteis no cuidado prestado à criança e perceberam a importância do cuidado compartilhado para o desenvolvimento infantil. Com o desenvolvimento das capacitações, as participantes sentiram a necessidade de sistematizar as atividades prestadas à criança nos problemas de saúde e, para tanto, foram construídos, conjuntamente, protocolos e procedimentos operacionais padrão para a formalizar as ações. Na etapa de avaliação dos encontros, constatou-se que há expectativas positivas para a continuidade do cuidado em comunhão entre pais e educadores, pois foram construídas novas percepções em relação ao cuidado da criança. Percebeu-se mudança considerável nas mães assíduas ao estudo quanto ao cuidado e interesse, no entanto tornaram-se evidentes as fragilidades no processo de trabalho do CMEI, pois emergiram a dificuldade existente nos membros que compõe a instituição de educação infantil de articular o cuidado à educação. Como principal dificuldade, elenca-se o alto índice de mães faltosas e a dificuldade de articular com outros profissionais de saúde para as atividades. Considera-se que o pacto de cuidar não foi implantado integralmente, pois partilhar cuidados sugere o encontro de pais e educadores que podem ter aspectos divergentes sobre necessidades infantis e desenvolvimento, o que requer constante negociação entre as partes. Nesse sentido, constitui-se em um processo contínuo de aperfeiçoamento entre família e instituição de educação infantil

Avaliação da Usabilidade de Interfaces Web segundo Critérios Ergonômicos de Bastien e Scapin: Pesquisa com os Ambientes Virtuais de Educação à Distância Aulanet, E-Proinfo e Teleduc

Este trabalho tem dois objetivos: avaliar a usabilidade de três interfaces de ambientes virtuais de educação à distância através de duas técnicas avaliativas e identificar os fatores influenciadores da percepção de usabilidade dos ambientes avaliados. Os sistemas de educação à distância escolhidos foram o AulaNet, o E-Proinfo e o Teleduc, por serem desenvolvidos no Brasil e terem distribuição gratuita. A avaliação da usabilidade foi realizada através de duas técnicas documentadas na literatura. A primeira técnica de avaliação, do tipo preditiva ou diagnóstica, foi realizada pelo autor e um concluinte do curso de Sistemas de Informação do Centro Federal de Educação Tecnológica do estado do Piauí (CEFET-PI), mediante a observação de um checklist denominado Ergolist. A segunda avaliação, do tipo prospectivo, foi efetivada com o usuário sendo o próprio avaliador das interfaces, através de um questionário. A amostra foi composta de 15 professores e 15 alunos do CEFET-PI. Os resultados colhidos foram analisados a partir da estatística descritiva e testes de chi-quadrado. Os resultados mostraram que os ambientes apresentarem problemas de adaptabilidade, pois não possuem flexibilidade e nem levam em consideração a experiência do usuário. Na análise inferencial, foi constatado que o tempo de uso da Internet não afetou significativamente sua avaliação da usabilidade dos três ambientes, assim como na maior parte das variáveis de usabilidade não foram influenciadas pelo tipo de usuário , sexo e escolaridade . Por outro lado, em vários dos critérios ergonômicos avaliados, as variáveis de sistema tipo de ambiente e experiência com computador e a variável demográfica faixa etária afetaram a percepção de usabilidade dos ambientes virtuais de educação à distância

Influência das dimensões organizacionais na gestão do conhecimento: pesquisa empírica na rede de hoteleira de Natal/RN

This dissertation of Master of Science investigates the influence of the organization dimensions in the development of the management of the knowledge in the administrative activities developed by the tourist sector of the city of the Natal/RN. The adopted methodology was a descriptive research and exploration, using the technique of analysis of Cluster and Box Multiple Plot. The objective of if using descriptive and exploration analysis of the absolute values and the gotten percentages, are to present, on the basis of the studied dimensions, the degree of importance and the agreement related to the organization knowledge in the perception of the interviewed ones. The used instrument of research was a composed questionnaire for two parts: study of the management of the knowledge and profiles of the companies and interviewed. This questionnaire aims at the study of the organization environment, evidencing if the same it propitiates one administrative politics directed for the creation, storage and dissemination of the organization knowledge. Of this form, the general result presented a relationship of the content seen in the bibliography with the activities developed in the hotels, demonstrating that the management of the organization knowledge is of great importance for the development of this activity