A Internet como tecnointeração da aprendizagem: valorização da cultura e identidade juvenil

The present study investigates Internet as technological interaction in the school environment as a resource of the teaching-learning process. It aims to discuss the lack of synchronicity between proposals of educational access for Internet use and types of access and interaction applied by youngsters. For the development of this research, I resorted to a qualitative, descriptive and explanatory research focused on a group whose subjects are youngsters from eleven to fifteen years of age in a catholic school which belongs to a group of private teaching schools in Natal city, Rio Grande do Norte state. As methodological option it focus on a group and the observation of its participation, discourse analysis and ethnography, considering facts and data of the pedagogical practice concerning the focused theme, besides the attempt to know the youngsters everyday at school and the relationship between them and juvenile cultures. It recognizes the existence of two moments of the focused group: the first related to internet use like technological interaction; the second concerns to the way Internet is problematic as technological interaction in classroom learning. While contacting with youngsters, the study discusses the concepts of Media Environments, Culture, Identity, Network, Consumption and Citizenship. It recognizes that it is relevant for the school to consider Internet a pedagogical tool, directed not just at research, but mostly as learning environment and as learning construction in a collaborative way. It points out the need of approach between school and media environment, reevaluating the pedagogical practice, offering a new evaluation proposal (self-evaluation). It suggests a renewal in the teacher's pedagogical practice in the classroom and using Internet, valuing the connection between technological interaction and communication as motivation elements of student s learning construction and their effective participation in decisions involving citizenship. It gives priority to educational work directed at the establishment of dialogic relationship between codes, learning and contents, leading to the new findings domain in the media environment, enabling the development of abilities and performances directed at the recognition and consumption of information from a critical reading of the media

Consumo, cenários comunicacionais e subjetividades juvenis

Esta comunicação articula reflexões das pesquisas "Imagens limiares e visualidades juvenis: imagética do consumo", sediada na ESPM/SP, e “Imagens de presença e de ausência: sentidos midiáticos da subjetividade juvenil”, sediada na UFRN. O consumo é referência de uma epistemologia dos processos comunicacionais/midiáticos apoiada em investigações multimetodológicas. Buscam-se critérios para pensá-lo como sistema midiático com implicações em processos materiais e produtivos, e também como regime afetual, dinâmica estésica e estética de produção de sentido vinculado a dimensões simbólicas. São investigadas práticas de consumo dirigidas ao corpo e relevantes nos processos de subjetivação de jovens urbanos tanto pela reprodução de padrões como pela criação de novas formas de apropriação de bens simbólicos

O choque das culturas da ordem

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Ativismo judicial e materialização das políticas públicas infanto-juvenis na constituição da república: Fixação de planos ideais de atuação para os atores do Sistema de Garantia de Direitos (SGD)

The research arose from the necessity of showing ways to be followed by the actors of the System Guaranteeing Rights of the Child and Adolescent (SGD), regarding the implementation of rights for young people, because the legislation in force in Brazil is currently considered a model around the world and, paradoxically, the fundamental rights of children and adolescents are not met, even with the constitutionally guaranteed priority. Thus, the study investigates the fundamentality rights for young people, enshrined in the Constitution of the Republic, as well as the ways of effectiveness of these rights through the actions of actors of the System Guaranteeing Rights, especially the judiciary. Focusing realized, studying theories of fundamental rights, especially Structuring a Theory of Law (Strukturiende Rechtslehre), Friedrich Müller, who emphasizes the need for analysis of social reality in the application of the rule of law. Study also the public budget and public policies concerning children and adolescents, with emphasis on preparation of budget laws and the process of discussion, deliberation, choice and implementation of public policies for children and teenagers. It then presents the typical functions of the members of System Guaranteeing Rights, as well as prepare a plan for optimum performance for each of the actors, with emphasis on analysis of the implementation of public policies at the municipal level. Finally, it analyzes the theory of separation of three powers, and discusses the positive and negative factors for judicial intervention, concluding that the Courts can consider the action activist, from finding the omission of the Executive and legislative branches, as regards the implementation of the rights of children and adolescents, as well as the rights of children and young people are not realized in most cases, due to the omission of actors of the System Guaranteeing Rights

Aquelas leituras formadoras de culturas (Caicó-RN, século XIX)

La lecture faite du livre Seridó − XIXème siècle (Fazendas & livros), des historiens Medeiros Filhos et Faria, a été ce qui a déclenché l écrit de cette thèse de doctorat. La lecture intensive de ce livre a conduit au corpus documentaire de la recherche (livres scolaires, religieux et laïques, chronique, discours, documents ecclésiastiques, inventaires, testaments, mémoires d'enfance, articles journalistiques, rapports), et aussi au corpus du référentiel théorico-méthodologique de l'histoire culturelle de la lecture, en correspondance avec Roger Chartier et Robert Darnton. Dans la rigueur de l'écriture de la thèse, la recherche relative à la thématique lecture et absorptions culturelles nous a menés à définir comme objet d'étude les pratiques culturelles appropriées pertinemment aux lectures faites, entendues, murmurées, de nombreuses fois répétées et mémorisées, de livres scolaires imprimés, religieux et laïques qui circulaient à Caicó, dans les années mille huit cents. En vue de la lecture intensive et de l'extensive, l'objectif est d analyser, d'une part, des indices d'absorptions ou appropriations culturelles des enseignements de ces pratiques de lecture et, d'autre part, les entrelacements des enseignements relatifs à l'oralité, à la lecture, à l'écrit et à la scolarisation. La thèse défendue est que l'histoire de la lecture à Caicó, au XIXème siècle, est l'histoire de la lecture faite, entendue, murmurée, répétée et, encore, mémorisée, qui, soutenue par des textes de livres scolaires, religieux et laïques, se convertissait dans la production de biens culturels spécifiques, comme des cartes, inventaires, remèdes homéopátiques et faits maison, testaments, prières fortes de cure, vers de cordel, parmi beaucoup d'autres. En commençant avec l'intention d écrire une histoire de la lecture à Caicó, au XIXème siècle, nous comprenons que les pratiques culturelles, spécialement les pratiques des coutumes seridoenses, sont, excessivement, le résultat des appropriations de lectures de textes scolaires, religieux et laïques, stimulatrices d'autres pratiques de lectures intensives et extensives. Si la lecture faite, entendue, répétée, mémorisée et reconnue est liée à des pratiques de coutumes universelles et locales, malgré cela la force de l'oralité aurait été l élément essentiel de la reproduction et de la longévité de cette lecture, ainsi que de son passage du XIXème siècle au XXème et, encore, des vestiges de certaines permanences de ce XXIème siècle. En partie, ce réseau de pratiques culturelles, reproduit par la force de la transmission orale, persiste depuis l époque de nos arrière-arrière-grand-parents

Relação entre padrão comportamental, estágios do ciclo de muda e atividade de enzimas digestivas proteolíticas em juvenis do camarão marinho Litopenaeus vannamei (Crustacea: Penaeidae)

Shrimp farming in Brazil is a consolidated activity, having brought economical and social gains to several states with the largest production concentrated in the northeast. This fact is also reflected in higher feed intake, necessitating a more efficient feed management. Currently, management techniques already foresee food loss due to molting. In this sense, studies relating shrimp s digestive physiology, molting physiology and behavioral response of shrimp feed can optimize the feed management. Thus, our study aimed to evaluate the behavioral response of the marine shrimp L. vannamei (Crustacea: Penaeidae) in accordance with the stages of moulting cycle and feeding schedules based on higher or lower activity of proteolytic digestive enzymes; also, to investigate the influence of feeding schedule on hepatosomatic index and non-specific and specific protease activity (trypsin). Experiments were carried out at the Laboratory of Shrimp Behavioral Studies at UFRN in partnership with the Laboratory of Enzimology UFPE. Juveniles of L. vannamei weighting 5.25 g (+ 0.25 g) were kept in aquaria at a density of 33 shrimp m -2. In the first experiment, shrimp were fed in the light phase or in the dark phase for 8 days; in the ninth day, the animals were observed for 15 minutes every hour during the 12 hours of each phase of the photoperiod. We recorded the frequency of inactivity, exploration, food intake, burrowing, swimming and crawling behavior. At the end of the 12th observation session, the shrimp were sacrified and classified by the method of setogenesis in the molt cycle stages A, B, C, D0, D1, D2 or D3. We found that the shrimp in A stage show high levels of inactivity. Moreover, the frequency of food intake was very low. The shrimp in D3 stage also had low food intake and high inactivity associated with elevated frequencies of burrowing. In the second experiment, shrimp were kept in physiological acclimation to experimental conditions for 28 days, distributed in 12 treatments in the light phase and 12 treatments in the dark phase. In the end, the animals were sacrified and dissected to assess non-specific and specific protease activity (trypsin) activity. In general, these parameters did not vary among animals fed in the light phase and those fed in the dark phase. However, significant differences were found in the activity of specific and nonspecific proteases in relation to food treatment. In the light phase, the major proteolytic activities converged to 10 hours after the start of the light phase, while the lowest activities converged to 6 hours after the beginning of this phase. In the dark phase, the highest enzyme activity converged to 12 hours after the onset of phase, while the lowest activities converged to 3 hours after the onset of phase. In the third experiment, we sought to evaluate the behavioral responses of shrimp in relation to dietary treatments based on higher or lower activity of proteolytic enzymes, considering the results of the second experiment. The behavioral categories observed were the same as the ones in the first experiment, with observations of 30 minutes (15min before and 15min after food supply). We found variation in behavioral responses as a function of the treatments, with greater intake of food in shrimp fed during the period of greatest activity of proteolytic enzymes, in the light phase. Thus we see that periodic events associated with the shrimp s physiology interfere in their behavioral responses, revealing situations that are more adjustable to the provision of food, and consequently optimizing feeding management

Padrão de atividades e de interações sociais de animais juvenis em dois grupos selvagens de Callithrix jacchus

The juvenile period represents the developmental phase between weaning and sexual maturity. Weaning occurs when the youngster does not receive direct care from the caretakers anymore. Individuals in the species Callithrix jacchus live in groups composed by the reproductive pair and successive twin sets. Cooperative care is the rule. Infants are weaned early, and from then on, food is provided by the adults in the group. These animals present high levels of social interactions, through play, grooming and social contact. During infant age, the twin becomes the main partner. There are few studies about the juvenile period, especially on Callithrix gender. The objective of this study was describing the pattern of activities and social interactions of four sets (one single and three twin sets) during juvenile phase in two Callithrix jacchus groups. We used instantaneous and continuous focal sampling for juveniles and scan sampling for adults behavioral recordings. Juveniles presented the same behavioral pattern as the adults relating the activity budget, in particular, foraging along the months. The composition of the diet was the same as that of the adults. Food transfer ended along the juvenile period. Social play as much as grooming were important socializing activities for the juveniles. The young individuals in the group were the main partners in social play, specially the twin. Adults were the main partners in grooming interactions. Scent marking differed between twins in the male/female sets, the female presenting the highest levels of marking. The juveniles were independent from adults in foraging activity. Social interaction varied according to group composition, but in general, interacted more with the twin and with the youngsters (infants and subadults), except in grooming. Even presenting many similarities, juveniles showed some differences between genders, which indicates the differentiation in behavior towards reproductive strategies early in the juvenile period

Influência da densidade de estocagem sobre o crescimento, ciclo de muda e o comportamento em juvenis do camarão marinho Litopenaeus vannamei

One of the factors that may interfere with the cultivation of Litopenaeus vannamei is the population density. This study aimed to assess the effect of density on growth, mortality, physical integrity and behavior of shrimp. The study was divided into two stages. At first, the shrimp were placed in tanks at densities of 50, 75 and 100 shrimp m-2. The animals were monitored in relation to the degree of proventricular filling, the stage of the molt cycle and physical integrity three times a week and in relation to the weight and length once a week. Mortality, growth and proventricular filling were not influenced by the density; frequency of records in specific stages of the molt cycle varied according to the density. The lower proportion of broken appendages and higher frequency of necrotic lesions occurred in lower density. The second stage of the research, conducted in aquaria, was divided into two parts. The first described social or feeding behavioral categories: slow displacement by contact, slow displacement by approximation, abrupt displacement by contact, abrupt displacement by approximation, reactivity, cannibalism, occupying the tray, get feed in the tray and get feed outside the tray. In the second part, these and other behavioral categories, described in the literature, were recorded in densities of 50, 75 and 100 shrimp m-2. Mortality was more frequent in higher density. The frequency of most behaviors mentioned above was very low, not differing between densities or being too low to determine differences between them. The behavioral profile of animals in different densities was, in general, very similar, with no difference in exploration, digging and cleaning between the densities. Even so, inactivity, feeding, crawling, burrowing, swimming, and proximity between animals were influenced by the density. These results suggest that some behaviors suffer greater interference from population density. However, the density may not have a broader influence on the animals when other factors, such as physico-chemical parameters of water and feed offering, are adequate

Modulaçao do estresse social sobre parâmetros fisiológicos, comportamentais, cognitivos e plasticidade neuronal em saguis (Callithrix jacchus) juvenis: um modelo psiquiátrico e cognitivo

Nos períodos críticos de plasticidade neural ocorre uma maior permissividade do sistema nervoso ao ambiente, por isto, a ação do estresse sobre o individuo e suas repercussões sobre áreas responsáveis pelo controle dos sistemas de resposta ao estresse e por funções cognitivas complexas vem recebendo bastante atenção. A utilização de modelos experimentais translacionais tem sido imprescindível na elucidação destes mecanismos e das patologias associadas. Diante disto, este trabalho investigou os efeitos do estresse social sobre parâmetros fisiológicos, comportamentais, cognitivos e sobre a neurogênese no córtex pré-frontal (CPF) durante um período crítico de plasticidade cerebral, a fase juvenil, em machos de Callithrix jacchus. Durante cinco meses, 5 animais foram acompanhados em suas famílias (GF) e 5 animais foram isolados socialmente por 4 meses (GI), após um mês em observação em ambiente familiar (fase basal- FB). Ao final do 5º mês foram aplicados 2 testes de memória de trabalho (MT) nos animais GF e GI. Em seguida, 3 animais de cada grupo foram sacrificados para análise do fator de neurogênese BDNF ( Brain Derived Neurotrophic Factor) por imunofluorescência no CPF (sub-regiões orbitofrontal e lateral). Os animais do GF não variaram significativamente o cortisol ao longo do estudo, enquanto o GI elevou o cortisol e comportamentos indicadores de ansiedade (CA) na primeira semana do isolamento. Em seguida, o GI apresentou uma redução no cortisol, nos CA, no peso corporal e um aumento de comportamentos estereotipados e da anedonia, alterações tipicamente depressivas em primatas não-humanos. Ao final, o GI apresentaram níveis de cortisol menores que em FB. Ambos os grupos apresentaram dificuldades em realizar e aprender as tarefas cognitivas e a presença de BDNF no córtex pré-frontal foi independente do grupo (GF ou GI), porém correlacionou-se com os níveis de cortisol presentes na ultima semana do estudo, e os animais com presença de BDNF no CPF lateral e orbitofrontal apresentaram maiores níveis de cortisol. Estes resultados contribuem no processo de validação do sagui como um bom modelo psiquiátrico translacional e aponta para possibilidade de estudos sobre transtornos depressivos na juventude e suas repercussões posteriores. Além disto, os resultados observados para as tarefas cognitivas levou-nos a fazer uma releitura dos protocolos utilizados em estudos de memoria de trabalho com animais adultos desta espécie, com a finalidade de aprimora-los facilitando a aprendizagem em animais juvenis, naives e em situações de estresse. Ademais, evidenciou-se pela primeira vez a relação do estresse, cortisol e níveis de BDNF, em animais juvenis desta espécie, com a fim de contribuir com sua utilização como modelo animal neurocognitivo.

Consumo, cenários comunicacionais e subjetividades juvenis

Esta comunicação articula reflexões das pesquisas "Imagens limiares e visualidades juvenis: imagética do consumo", sediada na ESPM/SP, e “Imagens de presença e de ausência: sentidos midiáticos da subjetividade juvenil”, sediada na UFRN. O consumo é referência de uma epistemologia dos processos comunicacionais/midiáticos apoiada em investigações multimetodológicas. Buscam-se critérios para pensá-lo como sistema midiático com implicações em processos materiais e produtivos, e também como regime afetual, dinâmica estésica e estética de produção de sentido vinculado a dimensões simbólicas. São investigadas práticas de consumo dirigidas ao corpo e relevantes nos processos de subjetivação de jovens urbanos tanto pela reprodução de padrões como pela criação de novas formas de apropriação de bens simbólicos