Comunicar e interagir em novos espaços: o uso das mídias sociais no Sistema de Bibliotecas da UFRN

This study discusses about the practice of communication in libraries from the appropriation of the resources of web 2.0, particularly social media, establishing from the aspects of mediatization new communication scenarios in their environments. Aims at understanding how in the contemporary society, the libraries, that symbolize traditional space in the search for information and knowledge, modify their contexts through technological resources involved in your scenario, and specifically checks as the process of mediatization is inserted into the communication practices and interaction of libraries, noting the relevance of the ownership of social media, especially twitter and facebook, by the libraries of the Federal University of Rio Grande do Norte - UFRN. Use as methodological procedures, a theoretical approach concerning the conceptual research to investigate issues relating to social media, communication practice, mediatization and network society, and is characterized by being a descriptive exploratory research, of qualitative nature with adoption of the inductive method, using interviews and direct observation, analyzing reconfiguration scenario of university libraries located in UFRN. Thus, with the of the study, expected to be possible to give an overview of how to establish the use of social media in the scenario investigated by checking the new possibilities of communication, outreach services, information dissemination and interaction with user

Interpretação e análise do problema da indução sob uma visão fundamentada em teorias de conjuntos e teoria de probabilidades

The following work is to interpret and analyze the problem of induction under a vision founded on set theory and probability theory as a basis for solution of its negative philosophical implications related to the systems of inductive logic in general. Due to the importance of the problem and the relatively recent developments in these fields of knowledge (early 20th century), as well as the visible relations between them and the process of inductive inference, it has been opened a field of relatively unexplored and promising possibilities. The key point of the study consists in modeling the information acquisition process using concepts of set theory, followed by a treatment using probability theory. Throughout the study it was identified as a major obstacle to the probabilistic justification, both: the problem of defining the concept of probability and that of rationality, as well as the subtle connection between the two. This finding called for a greater care in choosing the criterion of rationality to be considered in order to facilitate the treatment of the problem through such specific situations, but without losing their original characteristics so that the conclusions can be extended to classic cases such as the question about the continuity of the sunrise

Male Homosexuality in Brazilian Indexing Languages: Some Ethical Questions

Studies on ethics in information organization have deeply contributed to the recognition of the social dimension of Information Science. The subject approach to information is linked to an ethical dimension because one of its major concerns is related to its reliability and usefulness in a specific discursive community or knowledge domain. In this direction, we propose, through an exploratory research design with qualitative and inductive characteristics, to identify the specific terminology that Brazilian indexing languages allow for terms relating to male homosexuality. We also analyzed the terms assigned to papers published in the Journal of Homosexuality, Sexualities and Journal of Gay & Lesbian Mental Health between the years 2005 to 2009. From this analysis of terms and the Brazilian indexing languages, we see (1) the Brazilian context, (2) imprecision in the terminology, (3) indications of prejudices disseminated by political correctness, (4) biased representation of the subject matter, (5) and the presence of figures of speech.

Cultura da educação profissional continuada: uma análise dos Contadores do Município de Fortaleza-CE

The present investigation analyzes if it has, amongst the accountants of the city of Fortaleza-Ceará, a culture of Continued Professional Education, in the perspective of one future obligatoriness to garantee to the society best professional services in the terms of Resolution CFC nº 995/04 through the analysis of the activities played for the accountants in the city of Fortaleza, as well as through the analysis and detection of the factors that have motivated or made it difficult the search for the Continued Education and to inquire the attributes considered indispensable for the professional exercise. With this objective, the study presents a historical boarding of the development of the Accounting and the Countable Superior Education in Brazil, the approaches and the intentions of the Program of Continued Professional Education. The procedure used in the research was the inductive method with the use of a questionnaire applied to the accountants of the city of Fortaleza registered at the Regional Accountancy Council of Ceará-CRC-CE, of which it could evidence that if on one hand it is perceived that in the city of Fortaleza most of the accountants have a cocern for a continuous learning represented by 97,31% of the sample ; on the other hand it understands that some would have difficulties to accept the imposition, understanding that desmotivating factors exist as : expensive activities, few offers of courses and even though time lack

Modelo de risco controlado por resseguro e desigualdades para a probabilidade de ruína

In the work reported here we present theoretical and numerical results about a Risk Model with Interest Rate and Proportional Reinsurance based on the article Inequalities for the ruin probability in a controlled discrete-time risk process by Ros ario Romera and Maikol Diasparra (see [5]). Recursive and integral equations as well as upper bounds for the Ruin Probability are given considering three di erent approaches, namely, classical Lundberg inequality, Inductive approach and Martingale approach. Density estimation techniques (non-parametrics) are used to derive upper bounds for the Ruin Probability and the algorithms used in the simulation are presented

Alveolar osseous defect in rat for cell therapy. Preliminary report

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Regulador vegetal e bioestimulante na indução floral do maracujazeiro-amarelo em condições de entressafra

O objetivo do trabalho foi avaliar o efeito de regulador vegetal e de bioestimulante na indução floral do maracujazeiro-amarelo em condições não-indutivas, em Araguari-MG. Foram identificados e podados 12 ramos terciários por parcela (02-04-05), sendo 6 deles expostos de um lado da espaldeira, com luminosidade predominante pela manhã e 6 do outro lado da espaldeira, com luminosidade à tarde. O delineamento experimental foi em parcelas subdivididas, com 7 tratamentos principais (parcelas): 0mg L-1 (testemunha); 100mg L-1; 200mg L-1 e 300mg L-1 de regulador vegetal GA3 (i.a.); 2,08 mL L-1; 4,17mL L-1 e 6,25mL L-1 de bioestimulante Stimulate® (i.a.), em duas aplicações foliares (09-04-02 e 09-05-02), acrescidas de espalhante adesivo Silwett® a 0,05%. Além desses, foram utilizados 2 tratamentos secundários (subparcelas): exposição dos ramos à luminosidade da manhã e da tarde, com 4 repetições de 3 plantas por parcela. Cada subparcela foi um dos dois lados da espaldeira. As médias foram comparadas pelo teste de Tukey, a 5% de probabilidade. Realizou-se, aos 75 dias, a avaliação nos dois lados da espaldeira do comprimento dos ramos e entrenós, número de nós, de folhas e de botões florais. As variáveis estudadas não foram influenciadas pelo uso de GA3 e Stimulate®, no entanto houve diferença quando os ramos ficaram expostos à luminosidade da manhã em relação àqueles com luminosidade à tarde.

GRAMMAR and COMMUNICATION IN PORTUGUESE AS A FOREIGN LANGUAGE A Study in the Context of Teletandem Interactions

This paper presents a study about the role of grammar in on-line interactions conducted in Portuguese and in English, between Brazilian and English-speaking interactants, with the aim of teaching Portuguese as a foreign language (PFL). The interactions occurred by means of chat and the MSN Messenger, and generated audio and video data for language analysis. Grammar is dealt with from two perspectives, an inductive and a deductive approach, so as to investigate the relevance of systematization of grammar rules in the process of learning PFL in teletandem interactions.

Análise de contaminantes de fase líquida não aquosa (NAPLs) por aplicação do método eletromagnético indutivo (EM)

O descarte indevido de resíduos industriais no solo tem causado danos ao meio ambiente e à saúde humana. A identificação e o diagnóstico de áreas contaminadas é um procedimento necessário afim de que seja possível tomar medidas de contenção da fonte poluidora e posterior remediação. As técnicas geofísicas podem auxiliar na caracterização do meio geológico, definição das dimensões da pluma de contaminação, seleção de pontos para locação de poços de monitoramento e de bombeamento. Este trabalho apresenta os resultados da aplicação do método Eletromagnético Indutivo em uma área industrial contaminada por benzeno, tolueno, xileno (BTX) e dicloroetano. Os resultados indicam dois padrões de migração dos contaminantes em subsuperfície. Uma tendência de migração no plano horizontal até o nível de 15 m de profundidade e uma tendência de migração no plano vertical entre 15 e 60 m de profundidade. As tendências de migração divergentes estão condicionadas a densidade dos compostos que constituem a pluma de contaminação, ou seja, um intervalo LNAPL sobrenadante (BTX), sobreposto a um intervalo DNAPL (1,2 dicloroetano).

Aplicação do método eletromagnético indutivo (EM) no monitoramento de contaminantes em subsuperfície

O uso combinado de poços de amostragem e técnicas geofísicas constitui a maneira mais adequada para identificação e o monitoramento de áreas contaminadas. Este procedimento permite a locação de poços de amostragem e de monitoramento em pontos estratégicos, otimizando resultados e minimizando gastos. O método geofísico Eletromagnético Indutivo (EM) apresenta amplas possibilidades de aplicação em estudos ambientais devido à facilidade na aquisição de dados, versatilidade do equipamento em campo e a possibilidade de varredura de grandes áreas num curto espaço de tempo. Este trabalho realiza uma análise comparativa de dados em obtidos no ano de 1992 e em 2003. O local estudado é uma área industrial que apresenta contaminação do solo e água subterrânea por Benzeno, Tolueno, Xileno, 1,2 dicloroetano, Sódio e Cloreto, produto da infiltração de efluentes químicos diretamente do solo. Os resultados indicam uma acentuada atenuação da pluma contaminante, com provável redução no grau de contaminação. Os compostos de fase leve (LNAPLs) apresentaram maior tendência de migração horizontal, concomitante ao movimento da água subterrânea. Os compostos de fase densa (DNAPLs) apresentaram uma tendência mais acentuada de migração no sentido vertical, possivelmente devido à ausência de superfícies impermeáveis. Os compostos inorgânicos acompanharam o fluxo dos compostos de fase líquida não aquosa (NAPLs), o que por sua vez permitiu a caracterização da pluma de contaminação como um corpo condutivo em relação às áreas adjacentes.

O império da lei: ensaio sobre o cerimonial de sagração de D. Pedro I (1822)

Ce texte analyse le cérémonial royal de la monarchie constitutionnelle brésilienne: le sacre et le couronnement de l'Empereur D. Pedro I. Notre examen de ce cérémonial a comme point de départ son caractère liturgique, pour comprendre pourquoi cet aspect a été considéré essentiel alors pour affirmer l'autonomie du nouveau royaume et, en même temps, a contribué pour définir le pouvoir politique de l'Empire du Brésil.

Electrochemical studies with a Cu-5wt.%Ni alloy in 0.5 M H2SO4

The electrochemical behavior of the annealed Cu-5wt.%Ni alloy in 0.5 M H2SO4 was studied by means of open-circuit potential (E-OCP) measurements, cyclic voltammetry, electrochemical impedance spectroscopy (EIS), and quasi-stationary linear potential sweep. The hydrodynamics of the system was also studied. This material is constituted by a single a, phase. The anodic behavior of a Cu-Ni alloy in H2SO4 consists fundamentally on the electrodissolution of Cu, its main component, and the formation of a sulfur-containing passive layer. The presence of Ni decreases the rate of Cu oxidation, mostly at high positive potentials. The impedance spectra, obtained for the unrotating electrode, can be interpreted in terms of a simple charge-transfer reaction across a surface layer. When the electrode is rotated, the occurrence of an inductive loop evidenced the existence of an adsorbed layer. All the resistance estimated from the proposed equivalent circuits diminished with the electrode rotation rate, emphasizing the influence of ion transport in the overall electrode process. The system presented two anodic Tafel slopes: 40 mV dec(-1) for E < 255 mV and 67 mV dec(-1) for E > 275 mV. A Tafel slope of 40 mV dec(-1) evidences that copper dissolution can be interpreted in terms of the mechanism proposed by Mattsson and Bockris. The second Tafel suggests that at potentials more positive than 275 mV, copper dissolves according to a mechanism that considers the disproportionation of adsorbed Cu(1) species. (C) 2003 Elsevier Ltd. All rights reserved.

Does spatial visualization ability improve after studying technical drawing?

Two studies were carried out to analyze whether learning technical drawing improves a person's ability for spatial visualization. Visualization and inductive reasoning tests were applied at the beginning and end of a course in technical drawing in samples of first year engineering students. In both studies it was observed that a moderate percentage of students improved their Visualization test execution. The improvement was similar in men and women. There was no improvement on the inductive reasoning test. The results support the conclusion that the spatial visualization ability can be improved with training.

ESTUDO DO EFEITO DE GANGLIOSIDEOS EXOGENOS NA REGENERACAO NERVOSA APOS COMPRESSAO E NEURORRAFIA NO NERVO CIATICO DO RATO

The authors studied the possible inductive effect of exogenous gangliosides administrated intra-peritoneal and intra-muscular, in 33 rats, after compression and sutures of sciatic nerve. In the animals suffering compression of the sciatic nerve only, the myelin sheath was preserved with good regeneration of the nerve. There was no statistics difference between the two groups with or without the administration of gangliosides. In the group of rats where section of the sciatic nerve and suture were performed, neuroma of amputation as well as dense cicatricial tissue with inflammatory reaction of foreign body type was noted around the sutures. In conclusion, the formation of neuroma of amputation associated with severe inflammatory reaction had an important role in determining the regeneration of the nerve.

Characterization of bornite (Cu5FeS4) electrodes in the presence of the bacterium Acidithiobacillus ferrooxidans

Bornite electrodes were characterized in the absence or in the presence of Acidithiobacillus ferrooxidans, which is an important microorganism involved in metal bioleaching processes. The presence of the bacterium modified the mineral/electrolyte interface, increasing the corrosion rate, as revealed by interferometric, AEM, ICP and EIS analyses. As a consequence of bacterial activity the electrode became porous, increasing its surface heterogeneity. This behavior was correlated with the evolution of impedance diagrams obtained during the time course of experiments. The main difference in these diagrams was the presence of an inductive feature (up to 44 h), which was related to bacterial action on the mineral dissolution, better than to its adhesion on the bornite. The total real impedance measured in presence of the bacterium was about 10 times lower than in its absence, due to the acceleration of the mineral dissolution, because an oxidant environment was maintained.