Clinical Evaluation of the Effectiveness of Different Bleaching Therapies in Vital Teeth

The aims of this in vivo study were to compare the effectiveness and color stability of at-home and in-office bleaching techniques and to evaluate whether the use of light sources can alter bleaching results. According to preestablished criteria, 40 patients were selected and randomly divided into four groups according to bleaching treatment: (1) at-home bleaching with 10% carbamide peroxide, (2) in-office bleaching with 35% hydrogen peroxide (HP) without a light source, (3) in-office bleaching with 35% HP with quartz-tungsten-halogen light, and (4) in-office bleaching with 35% HP with a light-emitting diode/laser. Tooth shade was evaluated using the VITA Classical Shade Guide before bleaching as well as after the first and third weeks of bleaching. Tooth shade was evaluated again using the same guide 1 and 6 months after the completion of treatment. The shade guide was arranged to yield scores that were used for statistical comparison. Statistical analysis using the Kruskal-Wallis test showed no significant differences among the groups for any time point (P > .01). There was no color rebound in any of the groups. The bleaching techniques tested were equally effective. Light sources are unnecessary to bleach teeth. (Int J Periodontics Restorative Dent 2012;32:303-309.)

Atenção primária à saúde e a construção de sentidos para a saúde bucal: leitura construcionista social sobre discursos de idosos

Dentistry is nowadays open to new ideas about the constructions of meanings for oral health. This openness tallies with the social production of health and shows the need to contextualize the social, historical and sundry knowledge in the development of oral health for different communities. The scope of this research is to build meanings for oral health with a group of elderly people. With this in mind, we propose an approximation between the discourses of the elderly on oral health and the Social Constructionist discourse. Thus, we interviewed 14 elderly people registered with a Family Health Unit in Ribeirao Preto in the State of Sao Paulo in the first semester of 2010. This enabled us to identify two Interpretative Repertoires with the use of Discourse Analysis, which showed the relationship between: 1 Lack of dental information and assistance in childhood; and 2 - Primary Healthcare constructing meaning for oral health. We concluded that Social Constructionism assists epistemologically for the construction of meaning for oral health and that Primary Healthcare is essential for valuing healthcare for the construction of meaning for oral health on the part of the elderly by fostering conditions for self care and healthy attitudes.

Primary healthcare and the construction of meanings of oral health: a social constructionist interpretation of discourses of the elderly

Dentistry currently reveals itself to be open to new ideas about the construction of meanings for oral health. This openness leads to the social production of health revealing the contextualization of the social and historical aspects of the sundry knowledge in the development of oral health for different communities. With this research, we seek to build meanings for oral health with a group of elderly people. With this objective in mind, we propose an approximation between discourses on oral health mentioned by the elderly and the Social Constructionist discourse. We interviewed 14 elderly people enrolled in a Family Health Unit in Ribeirao Preto, State of Sao Paulo, in the first semester of 2010, and identified two interpretative repertoires through Discourse Analysis, which showed the relationship between 1 Lack of information and dental assistance in childhood, and 2 - Primary Health Care building the meaning of oral health. We concluded that Social Constructionism works epistemologically for the construction of meanings for oral health and that primary health is essential for appreciation and health care that enables the construction of meanings in oral health by the elderly that create conditions for self-care and healthy attitudes.

Micropolítica do trabalho dos profissionais de saúde na UBS: visão sobre necessidades de saúde das famílias

Este estudo teve como objetivo compreender as potencialidades e limitações do processo de trabalho da enfermagem de uma Unidade Básica de Saúde para o reconhecimento das necessidades de saúde da população. A vertente metodológica utilizada foi a pesquisa social, na perspectiva qualitativa, tendo como base de análise dos discursos a hermêutica-dialética, e como alicerce a Teoria da Interpretação Práxica da Enfermagem em Saúde Coletiva. Os dados foram coletados por meio da entrevista semiestruturada e os processos de trabalho das equipes foram analisados através do Fluxograma Analisador do Modelo de Atenção de um Serviço de Saúde. Concluiu-se que há limitações no cotidiano do processo de trabalho da equipe de enfermagem à medida em que o reconhecimento e enfrentamento das necessidades de saúde perpassavam pela identificação de agravos instalados, deixando em segundo plano os determinantes sociais das más condições de vida associadas ao processo saúde-doença.

Transcriptional Alterations Related to Neuropathology and Clinical Manifestation of Alzheimer's Disease

Alzheimer's disease (AD) is the most common cause of dementia in the human population, characterized by a spectrum of neuropathological abnormalities that results in memory impairment and loss of other cognitive processes as well as the presence of non-cognitive symptoms. Transcriptomic analyses provide an important approach to elucidating the pathogenesis of complex diseases like AD, helping to figure out both pre-clinical markers to identify susceptible patients and the early pathogenic mechanisms to serve as therapeutic targets. This study provides the gene expression profile of postmortem brain tissue from subjects with clinic-pathological AD (Braak IV, V, or V and CERAD B or C; and CDR >= 1), preclinical AD (Braak IV, V, or VI and CERAD B or C; and CDR = 0), and healthy older individuals (Braak <= II and CERAD 0 or A; and CDR = 0) in order to establish genes related to both AD neuropathology and clinical emergence of dementia. Based on differential gene expression, hierarchical clustering and network analysis, genes involved in energy metabolism, oxidative stress, DNA damage/repair, senescence, and transcriptional regulation were implicated with the neuropathology of AD; a transcriptional profile related to clinical manifestation of AD could not be detected with reliability using differential gene expression analysis, although genes involved in synaptic plasticity, and cell cycle seems to have a role revealed by gene classifier. In conclusion, the present data suggest gene expression profile changes secondary to the development of AD-related pathology and some genes that appear to be related to the clinical manifestation of dementia in subjects with significant AD pathology, making necessary further investigations to better understand these transcriptional findings on the pathogenesis and clinical emergence of AD.

Representations of workplace psychological harassment in print news media

OBJECTIVE: To analyze discourses on workplace psychological harassment in print media. METHODOLOGICAL PROCEDURES: Documental study on workplace psychological harassment that analyzed news stories published in three major newspapers of the State of Sao Paulo (southeastern Brazil) between 1990 and 2008. Discourse analysis was performed to identify discursive practices that reflect the phenomenon of psychological harassment in today's society, explanations for its occurrence and impact on workers' health. RESULT ANALYSIS: This theme emerged in the media through the dissemination of books, academic research production and laws. It was initially published in general news then in jobs and/or business sections. Discourses on compensation and precautionary business practices and coping strategies are widespread. Health-related aspects are foregone under the prevailing money-based rationale. Corporate cultures are permissive regarding psychological harassment and conflicts are escalated while working to achieve goals and results. Indifference, embarrassment, ridicule and demean were common in the news stories analyzed. CONCLUSIONS: The causal explanations of workplace harassment tend to have a psychological interpretation with emphasis on individual and behavioral characteristics, and minimizing a collective approach. The discourses analyzed trivialized harassment by creating caricatures of the actors involved. People apprehend its psychological content and stigmatization which contributes to making workplace harassment an accepted practice and trivializing work-related violence.

Family health team knowledge concerning the health needs of people with tuberculosis

The purposes of the study were to get to know conceptions on tuberculosis and health needs and to describe the care provided to people with tuberculosis, according to health professionals' perspective. Qualitative study developed at family health units in Capao Redondo, Sao Paulo. The data were collected through open interviews in January 2010 and submitted to discourse analysis, resulting in three categories: meanings attributed to tuberculosis and health needs and care characteristics. The conceptions regarding the disease are supported by the multi-causal theory of the health-disease process. The care is characterized by interventions that go beyond the biological dimension. The precarious living conditions define the needs of most people with tuberculosis, and can be more important to the ill than the very diagnosis of the disease, influencing treatment adherence, and should gain relevance in care.

Organização dos serviços de saúde e a gestão do cuidado à tuberculose

Este estudo teve como objetivo analisar a discursividade de gestores sobre a relação entre a organização dos serviços de saúde e a gestão do cuidado à tuberculose (TB) em um município da região metropolitana de João Pessoa/PB. Conduzido pela pesquisa qualitativa no campo analítico da Análise de Discurso de linha francesa, participaram 16 trabalhadores de saúde que atuavam como integrantes de equipes gestoras. Os depoimentos transcritos foram organizados com uso do software Atlas.ti versão 6.0. Após leitura minuciosa do material empírico procurou-se observar nos discursos os processos parafrásicos, polissêmicos e metafóricos, os quais possibilitaram a identificação da seguinte formação discursiva: organização dos serviços de saúde e a relação com a gestão do cuidado à TB; o plano e a prática. Nos discursos dos gestores evidencia-se a fragmentação das ações de controle da tuberculose, a falta de articulação entre os serviços e os setores, o cumprimento de atividades específicas à TB, bem como a falta de planejamento estratégico para gestão do cuidado da doença. Nesse sentido, para que a organização dos serviços de saúde seja efetiva, se faz necessário que a tuberculose seja prioridade na agenda da gestão e reconhecida como um problema social.

A modernização ecológica conquistando hegemonia nos discursos ambientais: o caso da Zona Franca de Manaus

A Zona Franca de Manaus (ZFM) foi criada em 1967 pelo governo da ditadura militar brasileira, de acordo com um discurso nacionalista que apresentava a região amazônica como um território estratégico que era preciso ocupar e desenvolver. Apesar de a visão do grande vazio não ter sido apagada do imaginário popular, desde os anos de 1970 tem ganhado força a percepção da floresta como herança cultural e biológica a ser preservada. Estas mudanças nos discursos mais gerais sobre a Amazônia foram acompanhadas por um deslocamento do discurso de legitimação dos incentivos fiscais gozados pelas indústrias de Manaus, em um movimento relacionado ao processo de construção de hegemonia no campo ambiental, marcado pela emergência da chamada modernização ecológica. Utilizando a análise crítica do discurso, este artigo mostra como se constituiu o argumento de que as empresas em Manaus protegem a floresta, assentado em um roteiro de dupla ameaça: de desemprego e de desmatamento. As informações e dados foram levantados por meio de pesquisa bibliográfica, entrevistas semiestruturadas e observações diretas em reuniões e eventos corporativos. Fizeram parte do corpus, ainda, as transcrições oficiais de 64 pronunciamentos em plenário dos três senadores e oito deputados federais do Amazonas em 2007; 125 matérias publicadas no caderno de Economia do jornal A Crítica entre 1º de janeiro e 30 de junho, e quatro edições da revista institucional Suframa Hoje, no mesmo ano.

Investigando processos de autoria na produção do relatório de Iniciação Científica de um graduando em Química

Neste trabalho, analisamos o relatório de Iniciação Científica produzido por um aluno de graduação em Química, a partir da perspectiva da Análise de Discurso de linha francesa, como vem sendo divulgada por Eni Orlandi, especialmente quanto à noção de autoria. Orlandi distingue três tipos de repetição no processo de autoria: empírica, formal e histórica. Percebemos, na produção do relatório, o exercício da repetição empírica e formal, além do uso da repetição histórica, que demonstra a posição de autor ocupada pelo aluno. Essa investigação nos levou à percepção sobre a influência da Iniciação Científica na apropriação da linguagem científica, e indicou que esse processo se deu por meio da troca com os pares, da imitação de modelos, e, sobretudo, da vivência da pesquisa.

Investigação sobre as configurações sociais do subcampo do esporte paralímpico no Brasil: os processos de classificação de atletas

Este trabalho tem por objetivo investigar e delimitar formas de interação e disputas sociais presentes no movimento paralímpico brasileiro, relativos aos processos de classificação de atletas, com base em conceitos de Pierre Bourdieu. A metodologia utilizada fundamentou-se em entrevistas semiestruturadas com quatro atletas (com deficiência física ou visual, praticantes de diversas modalidades: natação, goalball, rugby e basquete em cadeira de rodas) e quatro dirigentes (2 atuantes em funções técnicas e 2 em funções administrativas do Comitê Paralímpico Brasileiro). A análise de dados apoiou-se no método Discurso do Sujeito Coletivo e suas ferramentas metodológicas (expressões-chave; ideias centrais; ancoragens; instrumentos de análise de discurso). Destacam-se como resultados: os protocolos de classificação, assim como a atuação e formação de novos classificadores, são motivo de tensões sociais neste espaço; Os classificadores exercem importante poder simbólico no subcampo; Demais agentes, como treinadores e atletas, têm suas possibilidades de ascensão diminuídas por condições sociais desfavoráveis..

Värdet bakom våldtäkten : En diskursanalys av fyra rättsfall

This paper seeks to explore how victims of crime and defendants are portrayed in sexual assault cases. Lately, more and more voices have been raised in appal against values demonstrated in court decisions and we’ve seen the implementation of a new sexual assault legislation in attempt to increase people’s sexual integrity. Yet, at the same time, there is still a tremendously low amount of reported sexual assaults that go to trial and even fewer result in conviction. This paper is not an attempt to scrutinize the legal system, but to draw attention to what values are portrayed in sexual assault cases. The purpose is to examine the court decisions under consideration to see if and what values are portrayed. My paper can in no way allow generalization; it is merely a small sample of reality. The data consists of four court decisions from Östersund’s Tingsrätt; two of them resulting in conviction and two of them in dismissal. The data was collected systematically and undergoes a discourse analysis; hence it is a qualitative study. The result of the analysis is that although somewhat subtle, the court decisions do indeed portray stereotypical gender roles, particularly regarding victims’ prior sexual history, women’s room to manoeuvre and their given life conditions

Nationen och hans hustru : Feminism och nationalism i Israel med fokus på Miriam Kainys dramatik

The aim of this thesis is to elucidate the tension between feminism and nationalism in Israel and to investigate the ways by which such discursive currents mark the identities of Israeli women. The specific field of investigation is Israeli theatre, and the identities examined are dramatic characters created by the Israeli playwright Miriam Kainy. Also examined is the character of the playwright herself. Theatre is being observed as a specific field of society in which the position of women can be clarified. What kind of women characters the Israeli theatre produces is therefore a leading question for this study. Feminist theories, focusing on gender aspects of power relations, together with the postcolonial perspective, which considers power relations by focusing on ethnicity and geopolitical aspects, provide the theoretical tools. The social constructionist viewpoint is used since it provides an appropriate understanding of important notions for the thesis, such as nation and identity, considering them as constructions created by discourse. The discourses focused upon are the national v. the feminist discourse and theatre is viewed as a discourse mediator, which is why the dramatic text is the object of the analysis. The specific method of analysis is inspired by Norman Fairclough’s critical discourse analysis. The main part of the thesis consists of a discursive analysis of five women characters, constructed within a period of about five decades, namely between the 1950s and 1990s. Each one of these characters consists of an articulation which is considered representative of a specific time-relevant discursive struggle between the two discourses in question. One of the central assumptions of the thesis is that the Israeli national identity is thoroughly masculine. The identity problems it has been causing Israeli women since the time of the pioneers until today are clearly illuminated throughout the analysis. The conclusion emphasises that the subjectpositions being introduced by Israeli national discourse, namely the ways of being a New Jew, an Israeli, collide with those introduced by feminist discourse, i.e. ways of being an independent woman subject. Nevertheless, each and every character demonstrates creative ways of transforming the discourses by aiming at a hybrid formation.

Existence and uniqueness of positive and nondecreasing solutions for a class of singular fractional boundary value problems

[EN] We establish the existence and uniqueness of a positive and nondecreasing solution to a singular boundary value problem of a class of nonlinear fractional differential equation. Our analysis relies on a fixed point theorem in partially ordered sets.

Molekulargenetische Untersuchungen zur Reblausresistenz bei der Unterlagsrebe Börner

Dass Pflanzen gegen phytopathogene Infektionen resistent sind, ist das Ergebnis von multip-len Abwehrreaktionen. Eine solche ist auch die Hypersensitivitätsreaktion (HR). Sie ist die Folge eines Befalls von Börner mit Rebläusen und zeigt sich an Blättern und Wurzeln der resistenten Unterlagsrebe in Form von lokalen Nekrosen. Die Erzeugung von neuen, trans-genen reblausresistenten Unterlagsreben verlangt präzise Kenntnisse über die Mechanismen der Reblausresistenz. Um Resistenzgene zu identifizieren, wurden im Rahmen dieser Arbeit differenzielle Genexpressionsanalysen eingesetzt. Diese waren die Microarray Analyse mit der Geniom one Technik und die real time (RT) -PCR. Sie erlaubten eine Gegenüberstellung der Genexpression in behandeltem Wurzelgewebe mit der Expression im Normalgewebe der Unterlagsrebe Börner. Als experimenteller Induktor der HR in Börner diente die Indol-3-Essigsäure (IES), ein Bestandteil des Reblausspeichels. Frühere Untersuchungen zur Reb-lausresistenz zeigten, dass bei einer Behandlung mit IAA an Wurzeln von Börner Nekrosen entstehen, nicht jedoch an Wurzeln von der reblaustoleranten Unterlagssorte SO4 oder dem reblausanfälligem Edelreis. Das war der Grund, SO4 und Riesling als Vergleichsobjekte zu Börner für diese Studie auszuwählen. So sollte die Bedeutung der Rolle von IES als Auslö-ser der Resistenzmechanismen in Börner erklärt werden. Insgesamt konnten deutliche Unter-schiede in den Reaktionen der drei Rebsorten auf die IES Behandlung aufgedeckt werden. Während in Börner eine hohe Anzahl an Genen und diese intensiv auf den IES Reiz reagiert, fallen die Gene bei SO4 und Riesling zahlenmäßig kaum ins Gewicht und die Reaktionen der beiden Sorten auf IES zudem eher schwach aus. In der Summe waren es 27 Gene, die für die Reblausresistenz in Börner verantwortlich sein könnten. So konnte eine IES bedingte Aktivierung von Genen beobachtet werden, die bei der Produktion von Phytoalexinen be-deutsam sind, wie z.B. die phenylalanine ammonia-lyase, die lipoxygenase und die stilbene synthase. Weiter ließ sich eine Regulation von allgemein Stress assoziierten Genen und von Zellwandproteinen und eine Induktion von Signalkomponenten, etwa des Transkriptionsfak-tors ethylene response factor, nachweisen. Eine deutliche Hochregulation von Au-xintransportern in den IES behandelten Börnerwurzeln gab zudem Anhaltspunkte auf sorten-spezifische Unterschiede in der zellulären Aufnahme und Abgabe der IES. Durch die Ausar-beitung des Zusammenspiels der durch IES regulierten Gene konnten in dieser Arbeit wert-volle Hinweise auf die Mechanismen der Reblausresistenz in Börner gewonnen werden.