A TV DE MASSA E AS NOVAS ESTRATÉGIAS NARRATIVAS - Um estudo sobre audiências e programas contemporâneos

Esta tese aborda o declínio da audiência das grandes redes de TV aberta e os recursos narrativos que os produtores de programas adotaram para enfrentar essa tendência mundial. O estudo traz um panorama da situação da audiência no âmbito internacional e foca, particularmente, o caso do Brasil, onde três grandes emissoras mantém, no conjunto, uma das mais altas concentrações de público do mundo. Depois de analisar a fragmentação das audiências televisivas nas duas últimas décadas e os números que indicam a crescente dispersão dos telespectadores entre múltiplas ofertas de mídia disponíveis nos dias atuais, o trabalho discute as estratégias de programação e de construção de conteúdos. Além de teóricos que pesquisaram a chamada semiótica televisiva , servem de base para a investigação depoimentos de produtores e análises de programas de grande audiência. O objetivo é revelar os procedimentos utilizados para atrair e manter a atenção dos telespectadores, os quais começam com as medições de audiência e os estudos sobre o comportamento dos consumidores em relação à TV. A tese discute também como ocorre a exposição dos telespectadores em um ambiente onde existem várias opções de dispositivos para ver atrações televisivas ou para fazer outras atividades comunicacionais. A escolha deste tema de investigação partiu do princípio de que a exposiçao é condição essencial para sustentar o estudo de outras fases e outros aspectos do processo de comunicação, como a influência dos meios sobre a cultura e a sociedade. Em um contexto onde a mídia ocupa tanto tempo de nosso cotidiano, o impacto dos meios de comunicação de massa pode ser diretamente proporcional ao número de pessoas que eles alcançam e aos nossos hábitos de consumo de informação e entretenimento.

INTELIGÊNCIAS EMOCIONAIS E ENSINO SUPERIOR: uma leitura a partir da percepção de professores de um curso de administração.

As Inteligências Emocionais (IEs) têm sido objeto de estudo e discussão nos últimos quinze anos. Todavia, escassos são os estudos científicos, sobremaneira no campo da educação, voltados para o entendimento dos desafios e possibilidades das IEs no cenário do ensino superior. O modelo newtoniano-cartesiano, assumido por setores dominantes de nossa cultura de forma racionalista e reducionista, vem se estabelecendo desde tempos remotos, mais especificamente a partir do século XVI, avançando até os tempos atuais e trazendo muitas marcas para os diferentes campos da cultura ocidental, inclusive para a educação. Como características deste modelo, passíveis de crítica, estão a fragmentação do conhecimento, o foco na especialização e, a instituição de uma relação pedagógica dominadora e não dialogal que negligencia as múltiplas inteligências desenvolvidas e presentes nos indivíduos. Essas características contribuíram para o estabelecimento de uma sociedade de conhecimentos parcelares, para a disjunção entre sujeito e objeto, o descuido nas relações do homem para consigo mesmo, dele para com os demais homens e, dele para com os demais seres vivos que cohabitam o planeta, culminando numa intensa crise planetária. Urge discutir e rever o paradigma newtoniano-cartesiano, dado ao fato de que os resultados colhidos nestes últimos quinhentos anos, se por um lado nos beneficiaram do ponto de vista científico e tecnológico, não mais respondem aos problemas e necessidades com os quais nos deparamos, de modo especial na educação. Delimito esta pesquisa no âmbito do Ensino Superior e, no interior deste, no campo dos estudos de graduação em Administração. As perguntas que motivam o meu trabalho são: 1. Os professores do Curso de Administração consideram as dimensões emocionais em seu trabalho docente? 2. Eles sabem o que são IEs? 3. Que dificuldades eles vêem para desenvolver um trabalho com as dimensões emocionais? 4. Eles vêem possibilidades positivas no trabalho com as IEs? 5. Que pistas as respostas às perguntas acima sugerem à formação continuada de professores no campo da Administração? 6. Ao planejar e organizar suas aulas o professor tem vista o trabalho com a dimensão afetiva? Para fazer a crítica da educação construída na perspectiva newtoniano-cartesiana assumi como referências principais Morin (1995, 2000), Santos (1988) e Moraes (1997). Para estudar a construção do conhecimento considerando as IEs tomei como referências para esta pesquisa Gardner (1995), Izquierdo (2002) e Valle (2003). Foi realizada uma pesquisa de campo com seis (6) professores de um Curso de Administração, mediante um questionário estruturado. O objetivo desta pesquisa foi identificar as principais dificuldades dos docentes quando se pensa num trabalho pedagógico sensível às inteligências emocionais e, estudando estas dificuldades à luz dos teóricos por mim trazidos, construírem possíveis pistas para uma ação formativa, na perspectiva da formação continuada, que considere também o determinante das inteligências emocionais.(AU)

Gravidez na adolescência: estudo descritivo de variáveis psicológicas, sócio-demográficas e das relações objetais em adolescentes gestantes e sexualmente ativas

O presente estudo consta de uma etapa quantitativa e outra qualitativa; tem como objetivos descrever variáveis sócio-demográficas e psicológicas de adolescentes sexualmente ativas e primigestas de um Programa de Assistência Médica e Psicossocial à Adolescência (PAMPA) no período de 2000-2002. Descrever o conteúdo intrapsíquico de fantasias inconscientes em adolescentes. Identificar e correlacionar o conteúdo de fantasias inconscientes de adolescentes sexualmente ativas e primigestas em diferentes situações conjugais. Foram utilizadas as instalações do PAMPA na aplicação de uma entrevista semidiretiva e o Teste de Relações Objetais de Phillipson. Na análise sócio-demográfica verifico-se uma distribuição das adolescentes nas faixas etárias de 16 a 17 anos (31,1%), 14 a 15 anos (23,8%) e, 12 a 13 anos. 93,3%, das adolescentes são solteiras e, 6,7% é casada ou encontra-se em união consensual. Um terço das adolescentes encontra-se abaixo da escolaridade esperada para a faixa etária. A renda per capita de 48,6%, varia entre 0,5 e 1 salário mínimo. 40,2% das adolescentes tiveram a sexarca e destas 10,6% pertencem à faixa etária de 12 a 13 anos; e 48,5% de 16 a 17 anos. Metade das adolescentes sexualmente ativas estão grávidas. 57,6% das gestantes têm de 16 a 17 anos. Das adolescentes que iniciaram a vida sexual na faixa etária de 12 a 13 anos, 52,6% está grávida. 51% das adolescentes que tiveram a sexarca na faixa etária de 14 a 15 anos estão gestando e representam 45,5% do total de gestantes. Quanto à situação conjugal das primigestas, 54,5% é solteira e possui parceiro; já 30,3% encontra-se em união consensual ou é casada como conseqüência da gravidez. Não existem diferenças significativas da renda per capita das gestantes em relação à amostra em geral. 60,6% das gestantes buscaram assistência pré-natal a partir do segundo trimestre gestacional. 62,5% das adolescentes realizaram parto vaginal, 21,9% um parto por fórceps e 15,6% parto por cesariana. Observamos semelhanças no funcionamento psíquico em relação ao Sistema Tensional Inconsciente Dominante entre gestantes e adolescentes sexualmente ativas. Fatores como o não planejamento da gravidez e união conjugal em função da gravidez, são mais significativos, mostrando que o relacionamento conjugal e a maternidade não foram ainda elaborados e intensificam o processo de luto próprio da adolescência. No funcionamento psíquico, das gestantes, existem dificuldades em organizar a identidade sexual, negando modificações próprias da adolescência na tentativa de preservar relações vinculares infantilizadas. O conflito edípico permeia como principal nas relações triangulares, devido ao predomínio de objetos parciais persecutórios, incapacidade de conter o par combinado envolvendo sempre um terceiro excluído. Existe também a necessidade de manutenção de relações fusionais com exclusividade do vínculo não erotizado que levam a angústias intensas nas fantasias de separação, abandono e perda, sentimentos de fragmentação e medo de ataques destrutivo-vingativos. Quanto à período gravídico, as gestantes demonstram ambivalência na aceitação e necessidade de consentimento das figuras parentais, vinculadas à angústia surgida pelo medo de rejeição e abandono

Ecologia e história natural de população Hemidactylus agrius (Squamata: Gekkonidae) em área de Caatinga, com avaliação da distribuição das espécies nativas do gênero no nordeste do Brasil

The genus Hemidactylus Oken, 1817 has cosmopolite distribution, with three species occurring in Brazil, two of them native, H. brasilianus and H. agrius, and one exotic, H. mabouia. Considering the studies about ecology of lizards conducted in the Ecological Station of the Seridó, from 2001 to 2011, this study aimed (1) to re-evaluate the occurrence of the species of Hemidactylus in this ESEC; (2) to analyze ecological and biological aspects of the H. agrius population; and (3) to investigate the current and potential distribution of the native species of the genus in northeastern Brazil, analyzing the suitability of ESEC to this taxon. For the first two objectives, a sampling area consisting of five transects of 200 x 20 m, was inspected in alternating daily shifts for three consecutive days, from August 2012 to August 2013. For the latter objective, occurrence points of H. agrius and H. brasilianus from literature and from the database of Herpetological Collections of the UFRN and the UNICAMP were consulted to build predictive maps via the Maximum Entropy algorithm (MaxEnt). In ESEC Seridó, 62 H. agrius individuals were collected (25 females, 18 males and 19 juveniles), and two neonates were obtained from a communal nest incubated in the laboratory. No record was made for the other two species of the genus. Hemidactylus agrius demonstrated to be a nocturnal species specialized in habitats with rocky outcrops; but this species is generalist regarding microhabitat use. In the population studied, females had an average body length greater than males, and showed higher frequencies of caudal autotomy. Regarding diet, H. agrius is a moderately generalist species that consumes arthropods, especially insect larvae, Isoptera and Araneae; and vertebrates, with a case of cannibalism registered in the population. With respect to seasonal differences, only the number of food items ingested differed between seasons. The diet was similar between sexes, but ontogenetic differences were recorded for the total volume and maximum length of the food items. Significant relationships were found between lizard body/head size measurements and the maximum length of prey consumed. Cases of polydactyly and tail bifurcation were recorded in the population, with frequencies of 1.6% and 3.1%, respectively. In relation xv to the occurrence points of the native species, 27 were identified, 14 for H. agrius and 13 for H. brasilianus. The first species presented restricted distribution, while the second showed a wide distribution. In both models generated, the ESEC Seridó area showed medium to high suitability. The results of this study confirm the absence of H. brasilianus and H. mabouia this ESEC, and reveal H. agrius as a dietary opportunist and cannibal species. Further, the results confirm the distribution patterns shown by native species of Hemidactylus, and point ESEC Seridó as an area of probable occurrence for the species of the genus, the establishing of H. brasilianus and H. mabouia are probably limited by biotic factors, a fact yet little understood

Estudo in silico das interações da protease NS3-NS2B de DENV-2 com o inibidor peptídico Bz-nKRR-H com finalidades terapêuticas

Dengue virus is an important patogen that causes Dengue desease in all world, and belongs to Flavivirus gender. The virus consists of enveloped RNA with a single strand positive sense, 11Kb genome. The RNA is translated into a polyprotein precursor, wich is cleaved into 3 structural proteins (C, prM e E) and 7 non-structural proteins (NS1, NS2A, NS2B, NS3, NS4A, NS4B e NS5). The NS3 is a multifunctional protein, that besides to promote the polyprotein precursor cleavage, also have NTPase, helicase and RTPase activity. The NS3 needs a hydrophilic segment of 40 residues from the transmembrane NS2B protein (who acts like cofator) to realize this functions. Actually, there's no vacines available on the market, and the treatment are just symptomatic. The tetrapeptide inhibitor Bz-Nle-Lys-Arg-Arg-H (Ki de 5,8-7,0 M) was showed as a potent inhibitor μ for NS3prot in Dengue virus. That is a inteligent alternative to treat the dengue desease. The present work aimed analyse the interactions of the ligand bounded to the activity site to provid a clear and depth vision of that interaction. For this purpouse, it was conducted an in silico study, by using quantum mechanical calculations based on Density Functional Theory (DFT), with Generalized Gradient approximation (GGA) to describe the effects of exchange and correlation. The interaction energy of each amino acid belonging to the binding site to the ligand was calculated the using the method of molecular fragmentation with conjugated caps (MFCC). Besides energy, we calculated the distances, types of molecular interactions and atomic groups involved. The theoretical models used were satisfactory and show a more accurate description when the dielectric constant = 20 ε and 80 was used. The results demonstrate that the interaction energy of the system reached convergence at 13.5 A. Within a radius of 13,5A the most important residues were identified. Met49, Met84 and Asp81 perform interactions of hydrogen with the ligant. The Asp79 and Asp75 residues present high energy of attraction. Arg54, Arg85 and Lys 131 perform hydrogen interactions with the ligand, however, appear in BIRD graph having high repulsion energy with the inhibitor. The data also emphasizes the importance of residue Tyr161 and the involvement of the catalytic triad composed by Asp75, His51 and Ser135

Computação em nuvem no governo: caminhos para a formação de uma agenda governamental

This work aims to understand how cloud computing contextualizes the IT government and decision agenda, in the light of the multiple streams model, considering the current status of public IT policies, the dynamics of the agenda setting for the area, the interface between the various institutions, and existing initiatives on the use of cloud computing in government. Therefore, a qualitative study was conducted through interviews with a group of policy makers and the other group consists of IT managers. As analysis technique, this work made use of content analysis and analysis of documents, with some results by word cloud. As regards the main results to overregulation to the area, usually scattered in various agencies of the federal government, which hinders the performance of the managers. Identified a lack of knowledge of standards, government programs, regulations and guidelines. Among these he highlighted a lack of understanding of the TI Maior Program, the lack of effectiveness of the National Broadband Plan in view of the respondents, as well as the influence of Internet Landmark as an element that can jam the advances in the use of computing cloud in the Brazilian government. Also noteworthy is the bureaucratization of the acquisition of goods to IT services, limited, in many cases, technological advances. Regarding the influence of the actors, it was not possible to identify the presence of a political entrepreneur, and it was noticed a lack of political force. Political flow was affected only by changes within the government. Fragmentation was a major factor for the theme of weakening the agenda formation. Information security was questioned by the respondents pointed out that the main limitation coupled with the lack of training of public servants. In terms of benefits, resource economy is highlighted, followed by improving efficiency. Finally, the discussion about cloud computing needs to advance within the public sphere, whereas the international experience is already far advanced, framing cloud computing as a responsible element for the improvement of processes, services and economy of public resources

Identidades coletivas de estudiosos da linguagem no currículo lattes: docência, pertença social e capital cultural-acadêmico

The discussion involving the identity of social actors has taken place for some years, however, it has become significant for the discourse studies over the last years due to the fragmentation of postmodern actors. Understanding the identity as a symbolic concept that can aid in the detection of certain realities - a kind of mechanism / a magnifying glass (MERLUCCI, 1985) - you can check the linguistic materiality of the introductory text of the lattes resume as a adequate place for the formation of collective identities . The aim of this dissertation is to reflect, in a time of postmodernity, through the lattes introductory curriculum texts, the collective identities of the language researchers are portrayed in discursive and social practices based on the accumulation of cultural and academic capital. For analysis, surrounding the indisciplinary posture in Applied Linguistics (MOITA-LOPES, 2006), the descriptive / interpretive methodology was used (MAGALHÃES, 2001). Whereas the study method and the social theory, as state reasons of the research makes use of the Sociological Approach and Communicational Discourse, chain linked to the assumptions of Critical Discourse Analysis (PEDROSA, 2012a). The corpus is constituted of twenty-seven introductory texts from the lattes curriculum of language researchers, connected to three institutions of higher learning in Sergipe. After the collection, on the lattes platform, and the numbering of the curriculum in order to achieve the research objective, we performed the analysis based on three identity themes: teaching, social belonging (BAJOIT, 2006; DESCHAMPS; MOLINER, 2009) and the accumulation of academic-cultural capital (BOURDIEU, 2004; HEY, 2008). The data show that the texts of the lattes curriculum are based on hegemonic and ideological principals, referring to the accumulation of academic assets, the valuation of actors and the hierarchical positions, recognized and ratified by couples who socialize among themselves Right now, the research allows us to infer that, in postmodernity, some collective identity assumptions, contribute to the understanding of the academic reality, around the the lattes curriculum.

Finding the way home: movement of butterflies in non-familiar habitats

Paisagens naturais tem sido afetadas dramaticamente pela perda de habitat e fragmentação, os quais transformam paisagens contínuas em manchas de habitat circundadas por áreas de não-habitat (matrizes). Essas matrizes, inóspitas ou não, afetam incontáveis processos ecológicos, como a dispersão. Uma das formas de compreender o efeito da matriz no processo de dispersão é estudando o alcance da percepção do habitat dos animais, o qual é definido como o alcance (distância) em que um animal pode perceber elementos da paisagem. Essa percepção está diretamente relacionada ao sucesso de chegada à um novo habitat, enquanto o animal navega por uma matriz. Nós avaliamos a percepção do habitat em Heliconius erato, uma borboleta tropical. Entretanto nós também estávamos interessados em avaliar o efeito da idade das borboletas e do tipo de matriz na percepção do habitat. Consequentemente, nós criamos borboletas em laboratório e pareamos com borboletas coletadas na floresta durante um experimento de soltura. Para determinar o alcance da percepção, nós realizamos solturas em duas diferentes matrizes (coqueiral e campo em regeneração) à três distâncias da floresta (0,30 e 100 metros) e medimos o ângulo final alcançado pelas borboletas. Nós encontramos que (I) borboletas soltas na borda se orientaram fortemente para a floresta; (II) quanto maior a distância de soltura, menor a habilidade de perceber o habitat e (III) há interação entre matriz e idade da borboleta. Borboletas inexperientes se orientaram melhor no campo aberto (alcance da percepção: 30-100 metros) e experientes se orientaram melhor no coqueiral (alcance da percepção entre 30-100 metros).

Vazios urbanos e a dinâmica imobiliária na produção do espaço em Natal

In Brazil, the discussion about the urban voids appear related to the capitalist urban expansion process, when the urban growth act the cities were expanding toward the periphery, leaving in the interstices vacant land, kept out of the market waiting for the real estate valuation. In Natal, the formation of voids was triggered by the process of fragmentation of space promoted mainly by the urban sprawl with the emergence of new neighborhoods, lots of openings, housing developments and the emergence of new lines of commercial centrality. In this sense, this study aims to understand the role played by urban voids in the real estate dynamics and the production process of the Natal city space. For this, it was adressed the concept building on the conception of different authors and were characterized four types of gaps that best explained the phenomenon in the context of the work proposal addressed, such as idle, empty expectant, empty-brownfield areas and institutional areas. For each of these events were considered an example in the general context of the city through semi-structured interviews with technicians, managers and public officials in promoting the city and /or related to management of urban voids.

A gestão do programa saúde na escola no município de Natal/RN: um estudo de caso

The current conception of health deals with several influential factors, having education among them. Intersectoral organization is essential for Young and adult healthcare services. In this context the Healthcare in School Program was created which foresees a continuous articulation between health and education aiding the effectuation of the Healthcare Single System. The objective of this research is analyze the Healthcare in School Program (HSP) in Natal city in Rio Grande do Norte State taking into consideration the Intersectoriality of actions from the standpoint of the management. The chosen method was the case study, with qualitative approach. The sample was of the intentional kind including all components of the Natal city Intersectorial work group, composed by representatives of the Municipal Education Bureau, the State Education Bureau and Healthcare Municipal Bureau. The collecting data technique was the semi-structured interview. The data analysis was performed through the analysis of contents technique. For Data Show the following analysis categories were considered: Meaning of Intersectoriality; Actions Planning; Permanent and ongoing training for autonomy regarding to Healthcare Promotion; Difficulties and Potentials for actions operationalization. The outcomes allow us to indentify in Natal HSP intersectoral practices not developed yet. The manager professionals of Healthcare and Education do not get to acknowledge the power of Intersectoriality yet. The lack of commitment of some professionals stands out, planning is performed in a sectorial basis and without active participation of learners and community, there is duties accumulation and discouragement group, structural inadequacy and difficulty on the ongoing of the program actions. Despite the existing fragmentation, the program has contributed to the professional qualification and development of education actions regarding to healthcare along with learners. Therefore we conclude that healthcare, education and society have lots of challenges to face in order to consolidate Intersectoriality and the Healthcare in School Program and the and the implementation of the guidelines of the Healthcare Single System in Natal city in the state of Rio Grande do Norte.

Caracterização do ritmo circadiano de atividade e repouso em saguis idosos (Callithrix Jacchus)

Advanced age may become a limiting factor for the maintenance of rhythms in organisms, reducing the capacity of generation and synchronization of biological rhythms. In this study, the influence of aging on the expression of endogenous periodicity and synchronization (photic and social) of the circadian activity rhythm (CAR) was evaluated in a diurnal primate, the marmoset (Callithrix jacchus). This study had two approaches: one with longitudinal design, performed with a male marmoset in two different phases: adult (three years) and older (9 y.o.) (study 1) and the second, a transversal approach, with 6 old (♂: 9.7 ± 2.0 y.o.) and 11 adults animals (♂: 4.2 ± 0.8 y.o.) (study 2). The evaluation of the photic synchronization involved two conditions in LD (natural and artificial illuminations). In study 1, the animal was subjected to the following stages: LD (12:12 ~ 350: ~ 2 lx), LL (~ 350 lx) and LD resynchronization. In the second study, the animals were initially evaluated in natural LD, and then the same sequence stages of study 1. During the LL stage in study 2, the vocalizations of conspecifics kept in natural LD on the outside of the colony were considered temporal cue to the social synchronization. The record of the activity was performed automatically at intervals of five minutes through infrared sensor and actimeters, in studies 1 and 2, respectively. In general, the aged showed a more fragmented activity pattern (> IV < H and > PSD, ANOVA, p < 0.05), lower levels of activity (ANOVA, p < 0.05) and shorter duration of active phase (ANOVA, p < 0.05) in LD conditions, when compared to adults. In natural LD, the aged presented phase delay pronounced for onset and offset of active phase (ANOVA, p < 0.05), while the adults had the active phase more adjusted to light phase. Under artificial LD, there was phase advance and greater adjustment of onset and offset of activity in relation to the LD in the aged (ANOVA, p < 0.05). In LL, there was a positive correlation between age and the endogenous period () in the first 20 days (Spearman correlation, p < 0.05), with prolonged  held in two aged animals. In this condition, most adults showed free-running period of the circadian activity rhythm with  < 24 h for the first 30 days and later on relative coordination mediated by auditory cues. In study 2, the cross-correlation analysis between the activity profiles of the animals in LL with control animals kept under natural LD, found that there was less social synchronization in the aged. With the resubmission to the LD, the resynchronization rate was slower in the aged (t-test; p < 0.05) and in just one aged animal there was a loss of resynchronization capability. According to the data set, it is suggested that the aging in marmosets may be related to: 1) lower amplitude and greater fragmentation of the activity, accompanied to phase delay with extension of period, caused by changes in a photic input, in the generation and behavioral expression of the CAR; 2) lower capacity of the circadian activity rhythm to photic synchronization, that can become more robust in artificial lighting conditions, possibly due to the higher light intensities at the beginning of the active phase due to the abrupt transitions between the light and dark phases; and 3) smaller capacity of non-photic synchronization for auditory cues from conspecifics, possibly due to reducing sensory inputs and responsiveness of the circadian oscillators to auditory cues, what can make the aged marmoset most vulnerable, as these social cues may act as an important supporting factor for the photic synchronization.

Caracterização do ritmo circadiano de atividade e repouso em saguis idosos (Callithrix Jacchus)

Advanced age may become a limiting factor for the maintenance of rhythms in organisms, reducing the capacity of generation and synchronization of biological rhythms. In this study, the influence of aging on the expression of endogenous periodicity and synchronization (photic and social) of the circadian activity rhythm (CAR) was evaluated in a diurnal primate, the marmoset (Callithrix jacchus). This study had two approaches: one with longitudinal design, performed with a male marmoset in two different phases: adult (three years) and older (9 y.o.) (study 1) and the second, a transversal approach, with 6 old (♂: 9.7 ± 2.0 y.o.) and 11 adults animals (♂: 4.2 ± 0.8 y.o.) (study 2). The evaluation of the photic synchronization involved two conditions in LD (natural and artificial illuminations). In study 1, the animal was subjected to the following stages: LD (12:12 ~ 350: ~ 2 lx), LL (~ 350 lx) and LD resynchronization. In the second study, the animals were initially evaluated in natural LD, and then the same sequence stages of study 1. During the LL stage in study 2, the vocalizations of conspecifics kept in natural LD on the outside of the colony were considered temporal cue to the social synchronization. The record of the activity was performed automatically at intervals of five minutes through infrared sensor and actimeters, in studies 1 and 2, respectively. In general, the aged showed a more fragmented activity pattern (> IV < H and > PSD, ANOVA, p < 0.05), lower levels of activity (ANOVA, p < 0.05) and shorter duration of active phase (ANOVA, p < 0.05) in LD conditions, when compared to adults. In natural LD, the aged presented phase delay pronounced for onset and offset of active phase (ANOVA, p < 0.05), while the adults had the active phase more adjusted to light phase. Under artificial LD, there was phase advance and greater adjustment of onset and offset of activity in relation to the LD in the aged (ANOVA, p < 0.05). In LL, there was a positive correlation between age and the endogenous period () in the first 20 days (Spearman correlation, p < 0.05), with prolonged  held in two aged animals. In this condition, most adults showed free-running period of the circadian activity rhythm with  < 24 h for the first 30 days and later on relative coordination mediated by auditory cues. In study 2, the cross-correlation analysis between the activity profiles of the animals in LL with control animals kept under natural LD, found that there was less social synchronization in the aged. With the resubmission to the LD, the resynchronization rate was slower in the aged (t-test; p < 0.05) and in just one aged animal there was a loss of resynchronization capability. According to the data set, it is suggested that the aging in marmosets may be related to: 1) lower amplitude and greater fragmentation of the activity, accompanied to phase delay with extension of period, caused by changes in a photic input, in the generation and behavioral expression of the CAR; 2) lower capacity of the circadian activity rhythm to photic synchronization, that can become more robust in artificial lighting conditions, possibly due to the higher light intensities at the beginning of the active phase due to the abrupt transitions between the light and dark phases; and 3) smaller capacity of non-photic synchronization for auditory cues from conspecifics, possibly due to reducing sensory inputs and responsiveness of the circadian oscillators to auditory cues, what can make the aged marmoset most vulnerable, as these social cues may act as an important supporting factor for the photic synchronization.

Estudo da transição de fase da percolação através da entropia da informação

Various physical systems have dynamics that can be modeled by percolation processes. Percolation is used to study issues ranging from fluid diffusion through disordered media to fragmentation of a computer network caused by hacker attacks. A common feature of all of these systems is the presence of two non-coexistent regimes associated to certain properties of the system. For example: the disordered media can allow or not allow the flow of the fluid depending on its porosity. The change from one regime to another characterizes the percolation phase transition. The standard way of analyzing this transition uses the order parameter, a variable related to some characteristic of the system that exhibits zero value in one of the regimes and a nonzero value in the other. The proposal introduced in this thesis is that this phase transition can be investigated without the explicit use of the order parameter, but rather through the Shannon entropy. This entropy is a measure of the uncertainty degree in the information content of a probability distribution. The proposal is evaluated in the context of cluster formation in random graphs, and we apply the method to both classical percolation (Erd¨os- R´enyi) and explosive percolation. It is based in the computation of the entropy contained in the cluster size probability distribution and the results show that the transition critical point relates to the derivatives of the entropy. Furthermore, the difference between the smooth and abrupt aspects of the classical and explosive percolation transitions, respectively, is reinforced by the observation that the entropy has a maximum value in the classical transition critical point, while that correspondence does not occurs during the explosive percolation.

Estudo da transição de fase da percolação através da entropia da informação

Various physical systems have dynamics that can be modeled by percolation processes. Percolation is used to study issues ranging from fluid diffusion through disordered media to fragmentation of a computer network caused by hacker attacks. A common feature of all of these systems is the presence of two non-coexistent regimes associated to certain properties of the system. For example: the disordered media can allow or not allow the flow of the fluid depending on its porosity. The change from one regime to another characterizes the percolation phase transition. The standard way of analyzing this transition uses the order parameter, a variable related to some characteristic of the system that exhibits zero value in one of the regimes and a nonzero value in the other. The proposal introduced in this thesis is that this phase transition can be investigated without the explicit use of the order parameter, but rather through the Shannon entropy. This entropy is a measure of the uncertainty degree in the information content of a probability distribution. The proposal is evaluated in the context of cluster formation in random graphs, and we apply the method to both classical percolation (Erd¨os- R´enyi) and explosive percolation. It is based in the computation of the entropy contained in the cluster size probability distribution and the results show that the transition critical point relates to the derivatives of the entropy. Furthermore, the difference between the smooth and abrupt aspects of the classical and explosive percolation transitions, respectively, is reinforced by the observation that the entropy has a maximum value in the classical transition critical point, while that correspondence does not occurs during the explosive percolation.

Cuidado psicossocial em saúde mental: estudo em assentamentos rurais do Rio Grande do Norte

Dwellers of agrarian reform settlements have a life conditioned by poor living and work conditions, difficulties accessing health programs, social assistance and other public policies and by this exacerbating their psychosocial and environmental vulnerability, which has an impact on their mental health. This research investigates the availability of support by the health and social assistance staff, regarding the demands of common mental disorders and alcohol abuse of dwellers of nine settlements in Rio Grande do Norte. Fifty three experts from different professional categories were interviewed individually or in groups. The results indicate that the workers suffer from poor working conditions, attributes of patrimonial heritage and welfare, which still survives in Brazilian social policies and particularly at local administrations of the countryside. The staffs have little knowledge of the local conditions and of the mental health needs, which has a negative impact on the reception and offered care. The implemented health care still corresponds to the biomedical logic, characterized by ethnocentrism, technicality, biology, cure, individualism and specialization, with little participation of the dwellers and disregarding the traditional knowledge and practices of local health care and by this not achieving the expected results. The psychosocial attendance is not well coordinated, presenting problems with the follow-up and continuity of care. The psychosocial mental health care in rural context has to face the challenge of the reorganization of the health care networks, the establishment of primary health care close to the people’s everyday life, building intersectional practices considering a health multidetermination and health education connected to these specific contexts. Due to the lack of knowledge of the specifics of the life conditions of the dwellers and the fragmentation of the psychosocial health care network, these staffs do not abide and are not ready to face the mental health needs in order to interfere with these health iniquities.