Análise das provas objetivas de química dos vestibulares da UFRN de 1997 a 2010: uma caracterização a partir das mudanças

Las pruebas de vestibular, en los últimos años en el Brasil, han sido objeto de diversas investigaciones, considerando que ese proceso selectivo es una de las vias para ingresar en las universidades públicas y termina por influenciar la enseñanza en las escuelas. De esa forma, algunos vestibulares han pasado por cambios, de un simple proceso selectivo clasificatorio a un proceso fundamentado en reflexiones sociológica, pedagógica y crítica, lo que ha promovido cuestionamientos respecto del aprendizaje y de su papel en la escuela. Delante de esa realidad, la Universidad Federal de Rio Grande del Norte (UFRN) ha implementado cambios en sus vestibulares procurando una aproximación a las Orientaciones Curriculares Nacionales, como los PCNEM, los PCN+ y las OCEM. Siendo así, el objetivo de este estudio fue caracterizar el avance cualitativo en las pruebas de preguntas objetivas a partir de los cambios ocurridos en el vestibular de la UFRN en el periodo de 1997 a 2010, definiéndose las siguientes cuestiones de estudio: ¿Cuáles son los tipos de preguntas que caracterizan las pruebas objetivas de Química del vestibular? ¿Cuáles cuestiones presentan las mayores dificultades para los candidatos? ¿Cuáles son los contenidos conceptuales privilegiados? ¿En qué tipo de preguntas los candidatos presentan mayores índices de éxitos? ¿Qué diferencias pueden ser establecidas entre las preguntas antes y después del periodo que establece los cambios en el vestibular de la UFRN? Las discusiones teóricas del estudio están fundamentadas en las siguientes referencias: PCNEM (BRASIL, 1999), PCN+ (BRASIL, 2001), OCEM (BRASIL, 2006), Zabala (1999), Jiménez Aleixandre et al. (2003), Pozo (1999), Álvarez de Zayas (1992), Núñez (2009), Relatorios Comperve/UFRN (1997 a 2010), e en relación a las evaluaciones: Pasquali et al. (2003), Silva y Núñez (2008), Marín y Benarrouch (2009). Para el estudio fueran construidas las siguientes categorías que permitieran el análisis de las cuestiones: contextualización de la cuestión, temas conceptuales, problema, representación semiótica, cálculo matemático, pertinencia de la cuestión e índice de acierto. Los resultados muestran un avance cualitativo de las preguntas de Química, en los cuales se observa un modelo de prueba que prioriza el uso de verdaderos problemas, de situaciones contextualizadas, de pocos cálculos, dándose prioridad al razonamiento que implica la comprensión, la aplicación y la interpretación de los conocimientos conceptuales, todo lo que puede estimular una enseñanza más adecuada en relación a las exigencias actuales de la Educación en Química

A modalização como estratégia argumentativa em textos de vestibulandos

In this work, the argumentative strategies construction in university entrance examinations texts is analyzed. The study intended to present, through the analyzed occurrences in the corpus, the discursive strategies use for the argumentation construction, observing the different lexicalization forms and the effects that these strategies produced for the intended meaning construction. Aiming to analyze the modalization via texts written by candidates for the UFRN entrance examination, the relations between this category and the resources used for the argumentative guidance of the text were highlighted. Conceived as a speaker argumentative strategy to express his/her relationship with the proposition content which enunciates, the modalization is, thus, one of the linguistic expression form used for the attainment of intended meaning effects in the argumentation construction. In order to substantiate the research, the theoretical assumptions adopted were the propositions which deal with this linguistic category, guiding it to a pragmatic-semantic perspective as well as a discursive-semantic one. Hence, Neves ( 1996, 2006), Koch ( 2000, 2002), Cervoni ( 1989), Bronkart (1999) and Castilho; Morais de Castilho (1996) studies, among others founded this work. Afterwards, a contextualized analysis of the modalized statements, taking into account all the set of elements implied on the argumentation construction, was carried out. The research, which had a strict qualitative character, revealed that the candidates make use of modalization to express commitment or dissociation as regards the statement which they produce; to obtain credibility and provide more authority to their arguments, thus avoiding them of being contested; to impose their arguments as real ones and acquire acceptance of the interlocutor; to lessen the proposition content and disguise the knowledge source; to comment the enunciation and attribute the discourse to another sender; to establish a dialogic relation with the interlocutor. In addition to offering support for new investigations, the research also aims to contribute for the mother tongue teaching, emphasizing the need of a focus which provides special attention to the written language functioning and its application diversity. In this work, the argumentative strategies construction in university entrance examinations texts is analyzed. The study intended to present, through the analyzed occurrences in the corpus, the discursive strategies use for the argumentation construction, observing the different lexicalization forms and the effects that these strategies produced for the intended meaning construction. Aiming to analyze the modalization via texts written by candidates for the UFRN entrance examination, the relations between this category and the resources used for the argumentative guidance of the text were highlighted. Conceived as a speaker argumentative strategy to express his/her relationship with the proposition content which enunciates, the modalization is, thus, one of the linguistic expression form used for the attainment of intended meaning effects in the argumentation construction. In order to substantiate the research, the theoretical assumptions adopted were the propositions which deal with this linguistic category, guiding it to a pragmatic-semantic perspective as well as a discursive-semantic one. Hence, Neves ( 1996, 2006), Koch ( 2000, 2002), Cervoni ( 1989), Bronkart (1999) and Castilho; Morais de Castilho (1996) studies, among others founded this work. Afterwards, a contextualized analysis of the modalized statements, taking into account all the set of elements implied on the argumentation construction, was carried out. The research, which had a strict qualitative character, revealed that the candidates make use of modalization to express commitment or dissociation as regards the statement which they produce; to obtain credibility and provide more authority to their arguments, thus avoiding them of being contested; to impose their arguments as real ones and acquire acceptance of the interlocutor; to lessen the proposition content and disguise the knowledge source; to comment the enunciation and attribute the discourse to another sender; to establish a dialogic relation with the interlocutor. In addition to offering support for new investigations, the research also aims to contribute for the mother tongue teaching, emphasizing the need of a focus which provides special attention to the written language functioning and its application diversity

Linguagem e argumentação na produção escrita de vestibulandos

In this study, we analyzed the argumentative processes of written texts produced by UERN (Federal University of Rio Grande do Norte) vestibulandos : (students who apply for University Entrance Examinations in Brazil). It has as its corpus twenty compositions by such students. These compositions, collected in UFRN COMPERVE (Permanent Commission of vestibular examinations) and written in 2005 examination, were selected in a random way. The theoretical support is based on Perelman & Olbrechts-Tyteca (1999; 2002), Reboul (2004), Bakhtin (1992), Faraco (2003), Platão e Fiorim (2003) e Geraldi (1997), and other scholars. The work aimed to investigate how vestibulandos make use of argumentative techniques in order to construct their arguments in the vestibular examination. In the analysis of the corpus we considered that the used argumentative techniques, the relationship with the thesis, the sense effects students wanted to produce and the type of the required speech. It showed that in the, discourse construction of argumentative texts, students made use, with more frequency, of the following argumentative techniques: pragmatic arguments, arguments of the definition, comparison arguments, division arguments, example arguments, argument of the model and authority arguments as means to support their theses. However it was not carried out in a conventional way, reason why it leads us to believe that schools, as part of human activity, responsible for education and for the insert of learners in the literate world, have a fundamental role concerning the offer of conditions, so that, the teaching of Portuguese Language leads students to a systematic and explicit preparation of the knowledge, regarding the social and functions of the language, as well as of the strategies of the construction of argumentative texts. This can lead learners to develop communicative competence and to feel more confident when working with text production

A construção de posicionamento valorativo no cronotopo do PSV- 2008 da UFRN

Située dans le domaine de la Linguistique Appliquée (CELANI, 1998; MOITA LOPES, 2004, 2006, 2009), cette recherche documentaire fait partie d‟une approche qualitative-interprétative qui privilégie une perspective socio-historique (FREITAS, 2002, 2007; ROJO, 2006). Le but principal de ce travail est d‟analyser comment l‟interlocution a lieu dans les lettres argumentatives produites par 10 sujets-énonciateurs ayant participé au processus de sélection du «vestibular» d‟UFRN, appelé ici le chronotope du PSV-2008. Pour cela, les objectifs spécifiques qui guident cette recherche consistent à analyser les modes d‟assimilation du discours de l‟autre par le candidat, à identifier les positions axiologiques résultant des formes du processus interlocutif, et à construire une vision du sujet-énonciateur sur la base des choix de valeurs de l‟énonciateur et des relations espace-temps qui constituent l‟énonciateur et l‟interlocuteur. Quant à la théorie, la recherche est fondée principalement sur la notion de chronotope de Bakhtin une catégorie qui découle de la théorie du roman et problématisée par Amorim (2004) en articulation avec les réflexions théoriques de Geraldi (1997, 1999, 2006), Britto (2006) et Antunes (2005, 2006) sur le processus d‟écriture les relations dialogiques, la responsivité et les voix sociales (BAKHTIN, 1990, 2003, 2008; BAKHTIN/VOLOCHINOV, 2006) qui sont traversées par la conception dialogique du langage. L‟analyse nous a permis d‟identifier, principalement, deux débats dialogiques, dont le premier confronte le candidat à la dissertation et le second, à des interlocuteurs mentionnés dans la proposition. Les sujets ont formulé leurs énoncés sur un ton d‟indignation, en critiquant ce que l‟interlocuteur avait exprimé. Les candidats ont fait appel à la formation d‟un scénario d‟espoir, de crédulité, de respect et d‟éthique, conforme à la dignité de l‟être humain. Ces résultats mettent en évidence la façon dont des sujets multiples et hétérogènes, insérés dans la dimension de la vie, prennent position à l‟intérieur des pratiques discursives, face aux coordonnées d‟espace et de temps

Conectores sequenciadores em artigos de opinião escritos por vestibulandos: uma questão de marcação linguístia com implicações para o ensino

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

A interpretação semântica dos auxiliares modais poder, precisar e dever: uma abordagem da semântica cognitiva

Apresentamos, neste trabalho, com base na semântica cognitiva, uma análise do significado, em contexto, dos auxiliares modais poder, precisar e dever. Analisamos 120 textos produzidos por candidatos ao vestibular e por alunos do ensino fundamental, como resposta da questão número três da prova discursiva de Língua Portuguesa do vestibular 2005 da UFRN, que pede aos candidatos para explicitar a diferença de sentido entre três frases, observando o uso desses três verbos. Consideramos que um item lexical não é incorporado a uma representação lingüística semântica fixa, limitada e única, mas antes, é ligado a uma representação lingüística semântica flexível e aberta que provê acesso a muitas concepções e sistemas conceituais dependente de cada contexto determinado. Com base em seu significado, um item lexical evoca um grupo de domínios cognitivos, que por sua vez, apresentam um determinado conteúdo conceitual. Isto implica em afirmar que a rede de significados lexicais vai variar conforme o conhecimento de mundo de cada um (LANGACKER, 2000). A relevância deste trabalho é proporcionar uma contribuição para a descrição semântica do português

Formação ética para a cidadania: uma investigação de habilidades sociais medidas pelo inventário de habilidades sociais

O objetivo desta pesquisa foi investigar se o repertório de habilidades sociais importantes para a formação ética de um grupo de estudantes de ensino médio, curso pré-vestibular e curso de graduação em psicologia evidenciava mudanças relacionadas à diferença de idade e características específicas dos contextos interativos oferecidos pelas instituições de ensino participantes desse processo. Foi aplicado o Inventário de Habilidades Sociais a uma amostra de 45 estudantes e questionários semiestruturados a nove professores. Entre os alunos, os resultados indicaram diferença estatisticamente significativa entre as classes das categorias de ensino investigadas em relação a diferentes conjuntos de habilidades sociais. Dos resultados obtidos com os professores, pode-se depreender que estes possuem noção clara das capacidades que o aluno deve obter para agir com ética e ser cidadão, mas esses professores não propiciam condições, no contexto escolar, para a promoção de tais habilidades. Isso indicou a necessidade de melhorias na capacitação dos docentes, visando à ampliação do repertório de habilidades sociais de seus alunos.

Diferenças de sexo e escolaridade na manifestação de Stress em adultos jovens

Este estudo pesquisou sintomas de stress em adultos jovens, relacionando-os com o sexo e ano escolar em curso. Investigou também o tipo e a freqüência de sintomas. Participaram 295 estudantes de 15 a 28 anos, sendo 150 mulheres e 145 homens, que cursavam o primeiro e terceiro anos do ensino médio, curso pré-vestibular e primeiro e quarto anos de ensino superior. A avaliação do stress foi realizada através do Inventário de Sintomas de Stress de Lipp. Os resultados acusaram correlação significativa entre sexo e nível de stress (p<0,0001) sendo que as mulheres apresentaram maior nível de stress em todos os grupos avaliados. Maior índice de stress surgiu em estudantes do curso Pré-Vestibular, seguidos do terceiro ano do ensino médio. A sintomatologia apresentada foi predominantemente psicológica e os sintomas mais prevalentes foram sensibilidade emotiva excessiva, para as mulheres e, para os homens, pensamento recorrente.

Avaliação de lesões brancas de cáries: um estudo de prognóstico

Objective: The aim of the present study is to assess the current situation of white enamel lesions on vestibular surfaces of permanent upper incisors, diagnosed 6 years ago, without clinical intervention. Methods: A prospective study reassessed 53 students of both sexes, aged between 13 and 18 years old, all attending the public school system in Natal, Brazil. Data collection was performed by duly calibrated examiners, and a clinical chart consisting of demographic data on dental caries, oral hygiene, and gingival condition was prepared. A tactile-visual examination was conducted using a clinical mirror and periodontal probe. Data compilation and analysis were carried out using a SPSS software. In this analysis the chi-squared test was used for qualitative independent variables. To identify the net effect of treatment, multiple logistic analysis with forward stepwise model selection was performed. Results: The final sample was composed of 106 lesions in the 53 individuals, with mean age of 15.02 years, visible plaque index (VPI) of 23.34%, and gingival blood indices (GBI) of 25.92%. A statistically significant relationship (p = 0.003) was found between initial DMFS and prognosis of white enamel lesion. Conclusions: We observed that past caries experience and dental plaque were the main predictive factors for negative lesion outcomes, demonstrating the need for oral hygiene control through continuing preventive measures

Sonhos antecipatórios: influência de um evento significativo da vigília na atividade onírica

In most cultures, dreams are believed to predict the future on occasion. Several neurophysiological studies indicate that the function of sleep and dreams is to consolidate and transform memories, in a cyclical process of creation, selection and generalization of conjectures about the reality. The aim of the research presented here was to investigate the possible adaptative role of anticipatory dreams. We sought to determine the relationship between dream and waking in a context in which the adaptive success of the individual was really at risk, in order to mobilize more strongly the oneiric activity. We used the entrance examination of the Federal University of Rio Grande do Norte (UFRN) as a significant waking event in which performance could be independently quantified. Through a partnership with UFRN, we contacted by e-mail 3000 candidates to the 2009 examination. In addition, 150 candidates were approached personally. Candidates who agreed to participate in the study (n = 94) completed questionnaires specific to the examination and were asked to describe their dreams during the examinaton period. The examination performance of each candidate in the entrance examination was provided by the UFRN to the researcher. A total of 45 participants reported dreams related to the examination. Our results show a positive correlation between performance on the examination and anticipatory dreams with the event, both in the comparison of performance on objective and discursive, and in final approval (in the group that not dreamed with the exam the rate of general approval, 22,45%, was similar to that found in the selection process as a whole, 22.19%, while for the group that dreamed with the examination that rate was 35.56%). The occurrence of anticipatory dreams reflectes increased concern during waking (psychobiological mobilization) related to the future event, as indicated by higher scores of fear and apprehension, and major changes in daily life, in patterns of mood and sleep, in the group that reported testrelated dreams. Furthermore, the data suggest a role of dreams in the determination of environmentally relevant behavior of the vigil, simulating possible scenarios of success (dream with approval) and failure (nightmares) to maximize the adaptive success of the individual

Significado do Trabalho e Escolha Acadêmico-Profissional: um estudo com universitários primeiranistas

Relations between the meaning attributed to work by first year university students and their academic and professional choice were analyzed. The participants were 921 students, 17-52 years old (M = 22; SD = 4.9), enrolled in 16 courses common to two college level institutions of the city of Natal, RN, one public, the other private. A questionnaire was designed for collecting data about the academic-professional choice, with open-ended and multiple choice questions. Work meaning was obtained by means of two questions on centrality and two scales pertaining to the Inventory of Motivation and Work Meaning: value and descriptive attributes. A socio-demographic set of questions ended the questionnaire. Data was entered in a SPSS (Statistical Package for the Social Sciences) database, allowing for the pertinent statistical analyses, such as frequency, t test, chi square, factor analysis, cluster analysis and ANOVA. Results indicated that the decision about academic-professional career was made by the majority of the participants (in first option, N = 921) without the adequate consideration of the socio-professional reality (80.7%) and personal internal resources (98.5%). When considering the second option (N = 654), only the first criterion was taken into account, but only by 12.5% of the sample. The main difficulties faced by students during the choosing process were, then, made apparent in the data. 46.8% of the participants were unsatisfied with the course they had started and were anticipating unpromising perspectives in relation to it. The first year students took work as the second most important aspect of their lives and demonstrated an idealized vision about it. Five patterns of work meaning were identified. In relation to centrality and the value and descriptive attributes, the university students displayed differentiation in the attribution of work meaning according to course and area of knowledge

Tontura em idosos institucionalizados da cidade do NATAL/RN: Um estudo caso-controle em vestibulopatas e não-vestibulopatas

the institutionalized elderly presents for being more fragile a lot of body balance s changes, which can induce falls and health frailty. One of the consequences of it is the appearance of dizziness, vestibular or not. This study aims to identify the risk factors related to dizziness in institutionalized elderly, with and without vestibular disorders, in the city of Natal-RN. Method: a case-control study realized in 12 regulated by Health Surveillance Long Term Care Institutions for the elderly in Natal-RN. Elected seniors with good cognitive level and able to walk, totaling 115 individuals, and of these, 102 were selected according to the presence of dizziness in the last year (n = 51) and their controls (n = 51), paired by sex and age. The 51 elderly patients with dizziness were divided into 3 groups case: case one, for elderly with dizziness and without vestibulopathy (n=38); case two, for elderly with dizziness and vestibulopathy (n=13) and case three, for all the seniors with dizziness, or added to the case 1 case 2 (n=51). The 51 seniors who served as controls were also divided into three groups, according to the number of individuals of each case: control 1, n = 38, control 2, n = 13 control and 3 (sum of 1 control with control 2), n = 51. As possible risk factors were analyzed variables related to characteristics of the institution, to the habits of life of older people and those concerned with the health of the elderly. For statistical analysis, we used the chi-square or Fisher exact test for a significance level of 5% and calculating the association magnitude between variables by measuring the Odds Ratio. Results: as risk factors for dizziness without vestibular disorders were found the presence of hypertension and cardiovascular disease, as well as the presence of three or more disorders for elderly and use of gastric protector drugs. For the elderly group from case two were found no associated risk factor. For elderly patients with dizziness in the case group three, we observed the same risk factors found for the elderly in the case group one, plus the presence of osteoarthritis pathology, which was also significant for this group. Conclusion: dizziness in institutionalized elderly is associated with systemic common diseases in this age group and the vestibulopathy presents itself as pathology on an isolated way, not being possible, with our data, associate it with non-risk factors

Dysphonia and laryngeal sequelae in paracoccidioidomycosis patients: a morphological and phoniatric study

The larynx is the third most commonly involved organ in paracoccidioidomycosis (PCM). While a few studies have evaluated laryngeal sequelae, there have not been any investigations of voice abnormalities in PCM patients. To evaluate persistent dysphonia and laryngeal lesions, we studied 15 normal subjects and 30 post-treatment PCM patients, i.e., 15 with only pulmonary and 15 with both laryngeal and pulmonary involvement. Perceptual and acoustic voice analysis were performed with all patients, while endoscopic studies were also conducted with the 15 laryngeal patients. Voice analysis showed instability by perceptual analysis (P < 0.01) in both groups, but more severe dysphonia was noted in the laryngeal group (P < 0.01). The dysponia, seen in 66.7% of these patients (dysphonia index < 7.0), was characterized by roughness and breathness. The Dr. Speech (Tiger Electronics) analysis program did not accept five voices from the laryngeal group due to the severe dysphonia. Jitter was elevated in five laryngeal lesion patients. Endoscopy showed that 80% of patients with laryngeal lesion had two or more laryngeal structures involved. Vocal fold alterations were seen in all laryngeal lesion patients, which included involvement of the arythenoids, epiglottis, and vestibular folds. This first functional study of laryngeal sequelae in PCM revealed frequent and severe dysphonia that may have important social consequences for patients.

Lesões sequelares na laringe em pacientes com paracoccidiodomicose

A Paracoccidioidomicose (PCM) é uma doença sistêmica que em sua forma sequelar se caracteriza por manifestações clínicas relacionadas às alterações anatômicas ou funcionais de órgãos e sistemas comprometidos no período de estado. OBJETIVO: Descrever as alterações anatômicas e funcionais laríngeas sequelares em pacientes com paracoccidioidomicose. MATERIAL E MÉTODOS: Estudo retrospectivo, sendo avaliados 49 pacientes do sexo masculino, na faixa etária de 30 a 60 anos, entre 1999 a 2004, com diagnóstico de PCM em acompanhamento pela disciplina de Moléstias Infecciosas e Parasitárias, confirmado pela demonstração do fungo em escarro, exame citológico ou histopatológico. RESULTADOS: As pregas vocais foram a estrutura laríngea mais afetada, em 67% dos pacientes verificaram-se alterações. A epiglote estava acometida em 55% dos casos. As pregas ariepiglóticas tinham modificações em 53% dos pacientes. As pregas vestibulares estavam alteradas em 46% dos casos. em 40% dos casos verificaram-se alterações em aritenoides. Na fonação, 28% tinham limitação ao movimento das cordas vocais, paresia unilateral ocorreu em 4% casos. em 24% havia restrição da luz supraglótica e 4% tinham estenose glótica, sendo que 2% precisaram de traqueotomia. CONCLUSÃO: As lesões sequelares na laringe devido à infecção pelo P. brasilienses são extensas e causam restrições funcionais na maioria dos casos.

Intoxicação por metronidazol em cão - relato de caso

Metronidazole is a nitronidazolic antibiotic used in veterinary medicine to the treatment of a variety of diseases. The cause of metronidazole neurotoxicity has not been determined. We report the case of a dog, female, Teckel, five-year-old, with a history of dorsiflexion of the tail, ataxia, muscle stiffness, recumbency, vertical nystagmus, apathy and anorexia, which was being medicated for seven days with metronidazole in a dose higher than the maximum recommended, and the neurological signs began after this period. Neurological signs were consistent with central vestibular dysfunction caused by metronidazole, such as ataxia and vertical nystagmus. In addition to the neurological changes, the clinical signs of anorexia and apathy are consistent with the administration of excessive doses of the medicine. The diagnosis of metronidazole-induced toxicosis is based on the history of normal to increased doses, clinical signs and resolution after discontinuation of the drug. In general, the prognosis is good after drug withdrawal and early diagnosis. Some dogs may die and others may recover completely. The neurotoxicosis has disappeared after the suspension of the medicine and supportive treatment. Veterinarians must be aware of potential complications associated with the use of this medicine, as well as limit their chronic use or high doses for the most severe cases, and diagnose the problem as quickly as possible to institute an early treatment.