Wizard CD Plus and ProTaper Universal: analysis of apical transportation using new software

Objective: This study has two aims: 1) to evaluate the apical transportation of the Wizard CD Plus and ProTaper Universal after preparation of simulated root canals; 2) to compare, with Adobe Photoshop, the ability of a new software (Regeemy) in superposing and subtracting images. Material and Methods: Twenty five simulated root canals in acrylic-resin blocks (with 20 degrees curvature) underwent cone beam computed tomography before and after preparation with the rotary systems (70 kVp, 4 mA, 10 s and with the 8x8 cm FoV selection). Canals were prepared up to F2 (ProTaper) and 24.04 (Wizard CD Plus) instruments and the working length was established to 15 mm. The tomographic images were imported into iCAT Vision software and CorelDraw for standardization. The superposition of pre- and post-instrumentation images from both systems was performed using Regeemy and Adobe Photoshop. The apical transportation was measured in millimetres using Image J. Five acrylic resin blocks were used to validate the superposition achieved by the software. Student's t-test for independent samples was used to evaluate the apical transportation achieved by the rotary systems using each software individually. Student's t-test for paired samples was used to compare the ability of each software in superposing and subtracting images from one rotary system per time. Results: The values obtained with Regeemy and Adobe Photoshop were similar to rotary systems (P>0.05). ProTaper Universal and Wizard CD Plus promoted similar apical transportation regardless of the software used for image's superposition and subtraction (P>0.05). Conclusion: Wizard CD Plus and ProTaper Universal promoted little apical transportation. Regeemy consists in a feasible software to superpose and subtract images and appears to be an alternative to Adobe Photoshop.

The potential of novel primers and universal adhesives to bond to zirconia

Objectives: To investigate the adhesive potential of novel zirconia primers and universal adhesives to surface-treated zirconia substrates.Methods: Zirconia bars were manufactured (3.0 mm x 3.0 mm x 9.0 mm) and treated as follows: no treatment (C); air abrasion with 35 mu m alumina particles (S); air abrasion with 30 mu m silica particles using one of two systems (Rocatec or SilJet) and; glazing (G). Groups C and S were subsequentially treated with one of the following primers or adhesives: ZP (Z-Prime Plus), AZ (AZ Primer); MP (Monobond Plus); SU (ScotchBond Universal) and; EA (an Experimental Adhesive). Groups Rocatec and SilJet were silanized prior to cementation. Samples form group G were further etched and silanized. Bars were cemented (Multilink) onto bars of a silicate-based ceramic (3.0 mm x 3.0 mm x 9.0 mm) at 90 degrees angle, thermocycled (2.500 cycles, 5-55 degrees C, 30 s dwell time), and tested in tensile strength test. Failure analysis was performed on fractured specimens to measure the bonding area and crack origin.Results: Specimens from group C did not survive thermocycling, while CMP, CSU and CEA groups survived thermocycling but rendered low values of bond strength. All primers presented a better bond performance after air abrasion with Al2O3 particles. SilJet was similar to Rocatec, both presenting the best bond strength results, along with SMP, SSU and CEA. G promoted intermediate bond strength values. Failure mode was predominately adhesive on zirconia surface combined to cohesive of the luting agent.Conclusions: Universal adhesives (MP, SU, EA) may be a considerable alternative for bonding to zirconia, but air abrasion is still previously required. Air abrasion with silica particles followed by silane application also presented high bond strength values. (C) 2013 Elsevier Ltd. All rights reserved.

A representação da informação do documento de arquivo: perspectivas metodológicas para elaboração de pontos de acesso

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Vale a pena ver de novo - organização e acesso a arquivos televisivos na França, Grã-Bretanha e no Brasil

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

Representação e Persistência para acesso a Recursos Informacionais Digitais gerados dinamicamente em sítios oficiais do Governo Federal

The Information Access law, sanctioned in November 18, 2011, regulates the constitutional right of access to public information by Brazilian citizens. Although this law requires the provision of information of public interest, it does not define how such information should be made available. Ideally, information should be in an open format, allowing its use in an efficient and fast way. In the official sites of the federal government the way information is currently available does not allow its reuse as they are presented in dynamic pages from the selection parameters and filters. The objective aim of this paper is to present the system called MDDIR Tool, which proposes ways to persist, represent and retrieve digital information resources generated by the Federal Government official sites. Although this system had been designed for a specific purpose, it may be applied to other fields with similar characteristics. The purpose is to facilitate the access to open data, allowing such data to be consolidated and organized , generating new knowledge and information easy to be interpreted by the general population.

Acesso à informação geográfica: reflexões sobre a importância das Infraestruturas de Dados Espaciais (IDE) nas políticas públicas

This article discusses the access to geographic information and its importance for the public policies formulation, reflecting on the implementation of the Spatial Data Infrastructure. The data view and the maps construction are useful for identifying needs and sponsoring public managers in decision making. The public policies implementation stages are optimized when the quantitative and qualitative information are integrated to the spatial phenomena relations. The improvement in the use of geographic information for decision making will be achieved when spatial data are efficiently generated in spatial data infrastructures.

Arquivo e literatura: perspectivas de acesso e difusão da memória literária no Brasil

Besides storing, the culture and science institutions in charge of the of Brazilian writers’ personal archives play such an important role on the organization and representation of the country’s literary information. In general, the target public for these collections is composed by researchers from the field of Literature once the documents produced by the writers throughout his/her life and career constitute primary research source for the artistic, historical and literary investigation. However, it is still convenient to stand out those users with no academic instruction, whose interest in such collections is justified by their looking up to the individual. In this sense, literary memory places, such as the Brazilian Literature Archive Museum – AMLB (RJ) -, the Brazilian Literature Academy – ABL – (RJ) and the Brazilian Studies Institute – IEB – (SP) turn out to be responsible for offering access to the literary archives and literary information. Thus, it is necessary to consider that databases demonstrate themselves as utter disseminators of the preservation and diffusion of the literary memory, coming up with several possibilities for cultural and scientific action in Literature. This study focuses on showing the contributions of databases towards the literary archives, the challenges and perspectives observed according to the mentioned institutions’ reality, in whose missions the discourse of the literary memory preservation is inserted.

A produção institucional na perspectiva arquivística: Lei de Acesso à Informação e aproximações

This study regards the implementation of the Law of Access to Information, from an archivistic perspective of the institutional production of recorded projects in the period 1992- 2012 at the Letters and Arts Center (LAC) of the Federal University of Santa Maria (UFSM) and stored on digital medium in its database. It concludes that the effects of the law of access to information, as related to the institutional production by UFSM, will bring benefits to all society.

O trabalho como estratégia de atenção em saúde mental: cartografias do conceito Trabalho nas políticas públicas de saúde

Pós-graduação em Psicologia - FCLAS

Avaliação in vitro da resistência adesiva de braquetes ortodônticos variando-se o tempo de armazenamento e o tipo de fotoativação: luz halógena e led

O objetivo deste estudo in vitro foi comparar os efeitos da fotoativação pelos sistemas luz halógena e LED na adesão de braquetes ortodônticos em diferentes tempos pós-colagem (imediato, 24h e 7d). Braquetes com adesivo pré-aplicado (Gemini series; APC adhesive precoated brackets; 3M Unitek, USA) foram colados na superfície vestibular de dentes bovinos. O esmalte dos dentes foi condicionado utilizando-se o primer auto-condicionante (Transbond SEP, 3M Unitek, USA) em todos os espécimes, conforme recomendações do fabricante. Setenta e dois dentes foram divididos em 2 grupos (n=36), conforme o sistema de fotoativação (luz halógena ou LED) e sub-divididos (n=12) de acordo com o tempo pós-colagem. Para os grupos luz halógena, o tempo de fotoativação foi de 20s e para os grupos LED foi de 10s. O teste de resistência ao cisalhamento foi realizado com auxílio de uma máquina de ensaios universal nos diferentes tempos pós-colagem: imediato, 24h e 7d. O valor médio de adesão para os grupos luz halógena foi de 20,01±5,24MPa e, para os grupos fotoativados pelo sistema LED 17,35±5,07MPa, sendo estes resultados estatisticamente diferentes. Quando comparado o efeito do tempo pós-colagem, os resultados revelaram que os valores de adesão foram significantemente maiores para o tempo de 7d. O resultado do teste ANOVA 2 – fatores revelou não existir diferença estatística entre a interação sistema de fotoativação e tempos pós-colagem. O teste de Tukey mostrou que para as 4 condições experimentais nos tempos imediato e 24h, os resultados não diferiram estatisticamente, independentemente do sistema de fotoativação. Somente com relação ao grupo luz halógena-7d, os resultados mostraram diferenças estatisticamente significantes. O grupo LED-7d desempenhou comportamento intermediário entre os grupos. O índice de adesivo remanescente não revelou diferenças... (Resumo completo, clicar acesso eletrônico abaixo)

Avaliação do acesso e da segurança dos medicamentos disponíveis nos domicílios dos usuários cadastrados numa estratégia saúde da família de um município do Estado de São Paulo

Identificar as famílias que apresentem estoque e que façam uso de medicamentos, bem como avaliar as condições de armazenamento, segurança e uso desses produtos pelos usuários. O estudo foi conduzido em um município do estado de São Paulo e realizado com usuários cadastrados na Estratégia Saúde da Família (ESF) localizada no bairro Jardim das Hortências (uma das dez unidades de ESF que o município possui), que conta com 1132 domicílios cadastrados. Para a seleção da amostra foi realizado sorteio aleatório estratificado (134 domicílios, IC 95%). Para a coleta, realizada durante o primeiro semestre de 2011, os usuários dos domicílios selecionados foram entrevistados aplicando-se um formulário semi-estruturado. Participaram do estudo 118 (88,0%) domicílios, dos quais 112 (95,0%) possuíam medicamentos, que eram estocados em lugares inseguros ou inadequados em 75,4% destes. A automedicação – tanto com Medicamentos Isentos de Prescrição (MIP), quanto com Medicamentos Sujeitos a Prescrição (MSP) e aqueles Sujeitos a Controle Especial (SCE) – era prática comum em 46 (47,4%) domicílios. Falta de identificação e segurança nos medicamentos armazenados foi observada em 60 (53,6%) domicílios. A maioria dos domicílios possui estoque de medicamentos (feito de forma inadequada ou insegura) e/ou apresenta especialidades com falta de identificação e segurança, o que pode levar a intoxicações ou inefetividade terapêutica. A Assistência Farmacêutica, no âmbito do Sistema Único de Saúde (SUS), carece de iniciativas sociais com ações voltadas ao usuário de medicamentos, deficiência que pode ser sanada pela presença do farmacêutico, essencial para a promoção do Uso Racional de Medicamentos (URM), nas unidades da ESF, que, por meio da Atenção Farmacêutica, pode: identificar, corrigir e prevenir problemas (reais e potenciais) relacionados a medicamentos, os quais podem estar associados com agravos a saúde

Comunicação pública e acesso à cultura: um estudo de caso da Oficina Cultural Glauco Pinto de Moraes sob a ótica das Relações Públicas

This study examined how public relations can work through the implementation of tools for public communication, to seek to ensure a citizen of their rights: access to culture. We chose as case study Oficina Cultural Glauco Pintio de Moraes, located in Bauru (SP), an instrument of policy implementation for the Sao Paulo area, to discuss how the actions are carried out to the community as a whole. We analyzed data pertaining to the activities offered by the workshop and suggested actions for communication and relationship with its public workshop to happen more efficiently

Estudo da tecnologia de acesso Wi-Fie suas aplicações em ambientes indoor e outdoor

Wireless communications is a feature that has become indispensable for many people in the whole world. Through this feature, communication process can become much more efficient, allowing people to access information much more quickly wherever they are. The constant evolution of communication technologies allows the development of new unthinkable applications and services. This new range of possibilities brings greater mobility and efficiency for final users and also helps service providers and carriers to improve the quality of services offered by them. This study presents the principles of wireless communication and the Wi-Fi technology as well as its most modern applications, covering from the basics of computer networks to the procedures of planning a wireless network, concepts of radio frequency, antennas, patterns, regulatory agencies, network equipment, protocols and network monitoring

WiMAX interoperabilidade mundial para acesso de microondas

This paper presents a technique dubbed WiMAX radio link, the IEEE 802.16 was completed in October 2001 and published on April 8, 2002 and is constantly updated, this technology specifies an interface for wireless metropolitan networks (WMAN) and is under control of the WiMAX Forum, which is a group of companies responsible for the dissipation of this technology in the world, the great benefit of this standard is to offer broadband Internet connection in areas where there is no infrastructure such as fiber optics that has a cost higher. The main purpose of this paper is to present the theoretical and technical characteristics of this technology for both the standard for fixed and mobile standard, regulation of frequency bands by the FCC and description of the physical layer, through to basic concepts are used in many other types of radio link and technologies have been adapted and updated for this little-known standard, allowing a greater range and speed, which are specified and differentiate these advancements is one of the contributions of the work done here. After the theoretical conceptualization stage, a real case study has been inserted in this work to demonstrate the effectiveness of this technology deployed. The idea of presenting this case study is linked to a better view of the use of standard in the market, nationwide

Políticas públicas e comunicação cultural: nova possibilidade de acesso à cultura por meio de editais

In this work, seek to reflect, primarily, the Brazilian cultural interfaces, starting with a conceptual definition, symbolic and anthropological Culture and Identity. From this, the main strengthen public communication: individuals, groups and societies. Then the reflections address a more communicative context in which PR professionals are emphasized as a major responsible for handling cultural society. In the latter approach, the Cultural Public Policy are reinforced as key tools in creating laws to encourage culture in its intricacies and finally and quickly - but not least, the policy Edicts is reflected as a synthetically the new possibilities of fostering cultural