Ensino médio e trabalho: análise das diretrizes internas e externas da escola pública brasileira

Pós-graduação em Educação - FFC

Níveis de cálcio, fósforo, lipídeo e proteína na dieta inerte do camarão-da-malásia Macrobrachium rosenbergii, na fase larval

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

A figurativização do trabalho nas fábulas de Esopo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Linguagens e aprendizagem da matemática na EJA: desafios, preconceito lingüístico e exclusão

Esta dissertação teve o objetivo de verificar se os alunos da EJA consideram que o uso de uma variedade linguística pouco valorizada tem efeito sobre a aprendizagem da matemática e refletir sobre a importância do respeito à variedade linguística do aluno da EJA, que pode servir de meio para se chegar à variedade estabelecida no espaço escolar, assim como para a aquisição da linguagem matemática. A discriminação linguística que se tem dentro do contexto escolar pode distanciar ou até mesmo negar o acesso aos conhecimentos escolares pelo fato de se retirar as referências de mundo que o aluno possui. O aprendizado da matemática no meio escolar está distante das variedades existentes e principalmente daquelas oriundas dos meios mais carentes economicamente. Analisa-se a possibilidade de uma ponte entre os conhecimentos matemáticos populares e os escolares, a partir do respeito à variedade usada pelos educandos. A pesquisa foi realizada em uma escola pública com uma turma da terceira etapa da EJA. A análise permitiu constatar que muitos dos problemas encontrados no aprendizado da matemática estão relacionados com aspectos referentes à discriminação da variedade linguística e dos conhecimentos matemáticos das classes populares no meio escolar. Como se vive numa sociedade altamente tecnológica, que é formatada por modelos prescritos pela classe dominante, a partir da linguagem matemática, então esse conhecimento é imprescindível para a compreensão e para uma possível transformação social. Contudo, a escola segue comportamentos determinados, com o objetivo de reproduzir e manter tal mentalidade dominante ao negar o acesso à linguagem matemática. A pesquisa aponta para um caminho que prevê um ensino/aprendizagem da matemática que se emancipe desse ideal de sociedade, pois assim poderá contribuir para uma melhor educação aos alunos da EJA e para uma possível transformação social.

Pigmentos fotossintéticos e índice spad como descritores de intensidade do estresse por deficiência hídrica em cana-de-açúcar

The objective of this study was to evaluate the responses of sugar cane subject to water stress by photosynthetic pigments (chlorophylls a, b, total a + b, ratio chlorophylls a/b and carotenoids) and verify the use of SPAD index as a cultivar differentiation tool. The experiment was carried out in a greenhouse, where four cultivars (IACSP95-5000, RB835054, RB928064 and SP80-3280) were grown in pots. After 65 days of planting, two treatments were implemented, i.e., with no stress (-D) and with water stress (D +). Cultivars of sugar cane respond differently in relation to photosynthetic pigments when subjected to water deficit. Cultivars IACSP95-5000 and RB928064 have less effect of drought, that is attributed to the ability of maintaining the chlorophyll and carotenoid content, as well as higher SPAD index values under this condition. Water stress affects with more intensity the cultivars RB835054 and SP80-3280 due to higher reductions in photosynthetic pigments and SPAD index. SPAD index is correlated with chlorophyll and carotenoid content in sugar cane and can be used as a technique for selecting tolerant cultivars to drought in breeding programs.

Respostas fisiológicas de cultivares de cana-de-açúcar submetidas à deficiência hídrica e a reidratação

The aim of this work was to study the physiological responses of three contrasting cultivars of sugar cane subject to water stress and rewatering, The experiment was carried out in a greenhouse, where the cultivars SP83-2847, SP80-1842 and SP81-3250 were grown in pots. The first assessment was done after 85 days of planting, then two treatments were implemented, i.e. without water stress (-D) and with water stress (+D) by withholding water for 15 days and rewatering imposed for 12 days after the stress period. Cultivars SP81-3250 and SP80-1842 showed a higher decline in the F-v/F-m ratio, leaf relative water content (RWC), leaf water potential (Psi(w)), SPAD index and photosynthetic pigments due to water deficit. Drought caused less damage in the physiology of the variety SP83-2847, and it still showed rapid recovery during rewatering, including for the stomatal conductance (gs), so this variety had better adaptation under this condition. The traits F-v/F-m, Psi(w), RWC, SPAD index and photosynthetic pigments present as potential physiological indicators in order to select tolerant sugar cane cultivars to water deficit. The trait gs is more effective in differentiating the tolerant cultivars during rewatering.

O trabalho do professor da educação profissional e tecnológica de Mato Grosso: dos textos prescritivos ao agir reconfigurado nos textos dos professores

Pós-graduação em Linguística e Língua Portuguesa - FCLAR

When the Romance is Over: Follower Perspectives of Aversive Leadership

While leadership is indisputably one of the most pervasive topics in our society, the vast majority of existing research has focused on leadership as a positive force. Taking a follower- centric approach to the study of leadership, we integrate research on the Romance of Leadership and the dark side of leadership by examining followers’ perceptions of aversive leadership in the context of public high schools. Although Meindl, Ehrlich, and Dukerich (1985) demonstrated that the Romance of Leadership also includes the overattribution of negative outcomes to leaders, subsequent research has failed to explore the implications of this potentially darker side of romanticizing leaders. Specifically, we examine perceptions of principals’ aversive leadership and traditional affective, behavioral, and performance outcomes of followers in a sample of 342 dyads. Followers assessed their principals’ leadership behaviors and self-rated their levels of job satisfaction, self-efficacy, and resistance, while principals assessed their followers’ citizenship behaviors, complaining behaviors, and job performance. Results show that perceptions of aversive leadership are positively related to follower resistance and negatively related to followers’ job satisfaction. In addition, a usefulness analysis revealed that follower-rated variables were significantly related to perceptions of aversive leadership above and beyond leader-rated variables, suggesting that the relationship between negative outcomes and aversive leadership may be more constructed than real. In sum, the tendency to romanticize leadership may also lead to a proclivity to readily misattribute or overattribute blame to leadership as a convenient scapegoat for negative outcomes. Alors que le leadership est incontestablement l’un des thèmes les plus envahissants de notre société, la grande majorité des recherches existantes a porté sur le leadership en tant que force positive. En adoptant une approche centrée sur le suiveur dans l’étude du leadership, nous examinant la perception qu’ont les collaborateurs du leadership insupportable dans le contexte des lycées publics. Quoique Meindl, Ehrlich, et Dukerich (1985) aient montré que la Romance du Leadership inclut aussi la surattribution de résultats négatifs aux leaders, les recherches ultérieures ont méconnu les implications de cet aspect potentiellement plus sombre des leaders idylliques. Nous analysons en particulier sur un échantillon de 342 dyades la perception du leadership répulsif du proviseur et les résultats habituels des collaborateurs en rapport avec l’affectivité, le comportement et les performances. Les collaborateurs ont noté les comportements de leadership de leur proviseur et auto-évalué leur niveau de satisfaction au travail, d’efficience et de résistance, alors que les proviseurs appréciaient les conduites de citoyenneté et de revendication, ainsi que la performance professionnelle. Les résultats montrent que la perception du leadership répulsif est Positivement reliée à la résistance du suiveur et négativement à sa satisfaction professionnelle. En outre, une analyse des plus fructueuses a révélé que les variables évaluées par les collaborateurs étaient significativement en relation avec la perception du leadership répulsif, bien plus qu’avec les variables évaluées par les leaders, ce qui indique que la relation entre les résultats médiocres et le leadership négatif serait plus construite que réelle. Au total, le penchant à l’idéalisation du leadership peut aussi bien conduire à une propension à trop facilement condamner à tort et à travers le leadership qu’à la désignation d’un bouc émissaire tout trouvé pour expliquer de mauvais résultats.

System size and energy dependence of near-side dihadron correlations

Two-particle azimuthal (Delta phi) and pseudorapidity (Delta eta) correlations using a trigger particle with large transverse momentum (p(T)) in d+Au, Cu+Cu, and Au+Au collisions at root s(NN) = 62.4 GeV and 200 GeV from the STAR experiment at the Relativistic Heavy Ion Collider are presented. The near-side correlation is separated into a jet-like component, narrow in both Delta phi and Delta eta, and the ridge, narrow in Delta phi but broad in Delta eta. Both components are studied as a function of collision centrality, and the jet-like correlation is studied as a function of the trigger and associated p(T). The behavior of the jet-like component is remarkably consistent for different collision systems, suggesting it is produced by fragmentation. The width of the jet-like correlation is found to increase with the system size. The ridge, previously observed in Au+Au collisions at root s(NN) = 200 GeV, is also found in Cu+Cu collisions and in collisions at root s(NN) = 62.4 GeV, but is found to be substantially smaller at root s(NN) = 62.4 GeV than at root s(NN) = 200 GeV for the same average number of participants (< N-part >). Measurements of the ridge are compared to models.

Di-electron spectrum at mid-rapidity in p+p collisions at root s=200 GeV

We report on the mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and vector mesons via e(+) e(-) decays, from root s = 200 GeV p + p collisions, measured by the large-acceptance experiment STAR at the Relativistic Heavy Ion Collider. The ratio of the di-electron continuum to the combinatorial background is larger than 10% over the entire mass range. Simulations of di-electrons from light-meson decays and heavy-flavor decays (charmonium and open charm correlation) are found to describe the data. The extracted omega -> e(+) e(-) invariant yields are consistent with previous measurements. The mid-rapidity yields (dN/dy) of phi and J/psi are extracted through their di-electron decay channels and are consistent with the previous measurements of phi -> K+ K- and J/psi -> e(+) e(-). Our results suggest a new upper limit of the branching ratio of the eta -> e(+) e(-) of 1.7 x 10(-5) at the 90% confidence level.

La cohesión y la seguridad ciudadana : un enfoque global

El artículo revisa el concepto de cohesión social y la noción de seguridad, partiendo del análisis de los profundos desequilibrios y desigualdades sociales que el modelo económico dominante a escala global desde los años 1980 crea o intensifica en América Latina. Centrado en las transformaciones que generaron la pérdida de confianza en las instituciones, en el Estado, en el mercado del trabajo, en la educación, incluso en la religión y en la familia, sobre las cuales reposaba la solidaridad orgánica en el marco de la sociedad industrial capitalista, examina cinco indicadores de la existencia de problemas de inseguridad en relación con la cohesión social. Pone de relieve que el problema de la inseguridad se asocia con la ruptura o la fragilidad de los mecanismos de integración y de mediación social y sostiene la necesidad de reconstruir la cohesión social para alcanzar la seguridad ciudadana, destacando que este proceso se funda en una profunda modificación política, económica y social enfocada en la inclusión social, de la que son co-responsables el Estado y los ciudadanos como actores de su propio desarrollo.

New Archaeoscyphia (Porifera) from the Ordovician of Anticosti Island, Quebec / J. Keith Rigby -- and Matthew H. Nitecki --.

v.33:no.1(1973)

On the nature of the holotype of Nipterella paradoxica (Billings) / [by] Matthew H. Nitecki --

v.16:no.11(1968)

Mt. Tremblant -- Catsk

Map drawn with oil based pastels on brown craft paper.

Étude longitudinale de l’impact de la satisfaction envers les avantages sociaux novateurs sur l’intention de rester chez les travailleurs du secteur des technologies de l’information et des communications

The objective of this thesis is to understand the impact of satisfaction with innovative benefits on the intention to stay of the information and communications technology industry (ICT) workers. In order to investigate this question, a general research hypothesis was presented based on a literature review and on Blau’s social exchange theory (1964) and Maslow’s theory of needs (1943). The general research hypothesis states that satisfaction with innovative benefits increases intention to stay through time. The data used in this thesis were collected as part of a larger research on the relationships between compensation, training and skills development and attracting and retaining key employees. The longitudinal data come from an office located in Montreal of a major international company from the ICT sector. The study population consists of workers newly hired between April 1st, 2009 and September 30th, 2010. The results confirm the research hypothesis showing that satisfaction with innovative benefits increase intention to stay through time. Among the various innovative benefits studied, the results indicate that it is the satisfaction with the gym at work that best predicts intention to stay of workers. Other innovative benefits significantly related to intention to stay are the games library, the lounge, the medical clinic and the library in the workplace. Also, longitudinal analyses reveal that it is mainly the differences between the individual characteristics of the employees who best explain intention to stay than the differences across time of the same worker. This thesis concludes by discussing the best way for industrial relations managers to use the results in order to retain their employees. Then, the limits of the study and some directions for further research are also presented.