A presença de palavras de origem inglesa nos dicionários de português brasileiro: questões de identificação cultural

Este trabalho tem como objetivo observar a presença de palavras de origem inglesa em dicionários do Português Brasileiro relacionando este fato com a atual identificação do brasileiro com a cultura norteamericana – como consequência da importância dos EUA no cenário mundial nas últimas décadas. Neste estudo, notou-se que as palavras estrangeiras passam por um período de observação pelos lexicógrafos antes de serem finalmente inseridas em importantes obras de referência da língua portuguesa. Observou-se também que, quando inseridas nos dicionários, as palavras inglesas são encontradas em diferentes tipos de verbetes: alguns trazem transcrição fonética, por exemplo, outros não. Além disso, muitos verbetes não indicam se a palavra ainda pode ser considerada “estrangeira” à língua portuguesa ou se já se encontra aportuguesada. Dessa forma, podemos concluir que não há um padrão de entrada para palavras estrangeiras em dicionários do Português Brasileiro e que vem sendo uma tarefa difícil para os lexicógrafos encontrar um modelo de verbete que melhor atenda as necessidades das pessoas. Por fim, esta pesquisa comprovou que fatores extralinguísticos e culturais são importantes para que se decida se uma palavra estrangeira deve ou não estar presente em um dicionário do Português Brasileiro.

Categorização e multifuncionalidade: léxico e gramática

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Linguística funcional: princípios, temas, objetos e conexões

This paper aims at offering an overview of the different functionalist approaches in all their programmes, by verifying which functionalist premises would be relevant in each case. This may be a way to elucidate the differentiated approach of certain themes and of certain objects of analysis, and especially, to contribute to a better account of certain relations between each proposal and others realms of knowledge.

As origens do novo conservadorismo estadunidense em um sistema federativo: Barry Goldwater e a tentativa de coalizão entre tradicionalistas e libertários

A tradição do novo conservadorismo nos EUA foi determinante para a ampliação do debate político durante as últimas décadas, uma vez que, a partir da década de 1950 inseriu e fomentou uma série de ideias que, até então, pareciam excluídas e marginalizadas da discussão política devido ao grande sucesso eleitoral do modelo liberal creditado ao Partido Democrata. Para aprofundar esse debate, o artigo discute a importância da campanha eleitoral de Barry Goldwater, em 1964, e sua relação com a consolidação do movimento conservador no país, compreendendo como a partir dela amarrou-se uma aliança entre variadas correntes que compunham o espectro conservador, o que possibilitou ao Partido Republicano disputar novamente as eleições em um patamar de igualdade com o partido rival. Para realizar essa análise, em um primeiro momento, partimos de uma abordagem sobre o sistema federalista, com o intuito de compreender alguns de seus princípios básicos e sua influência na formação dos EUA como nação. Esse debate serve como base para uma releitura melhor contextualizada em torno de temas presentes na campanha de 1964, principalmente, no que se refere as propostas em torno do papel do Estado e relacionadas ao discurso em defesa dos interesses dos estados e da defesa da Constituição recorrentes no pleito eleitoral estadunidense. Junto a isso, aprofundamos a análise sobre as correntes que compunham o conservadorismo no país, demonstrando como elas, embora fossem muitas vezes antagônicas, se acomodaram em um projeto político conservador.

Limitations of enamel microabrasion technique applied in a pediatric patient: case report

Enamel microabrasion is a non-invasive method that removes intrinsic and superficial defects from teeth aimed to improve dental esthetic with minimal loss of dental tissue. This case presentation describes the attempt for teeth color correction utilizing that conservative technique in a young girl whose upper central incisor presented an opaque white stain. Scanning electron microscopy (SEM) was conducted in order to illustrate the glasslike luster and a smooth texture of microabraded enamel surface. The correct diagnosis of defect is a difficult task, when consider this conservative approach.

Cárie oculta extensa: relato de caso clínico

The pattern of caries lesions has been modified over decades. If the presence or absence of a caries lesion is based upon only a visual examination, its diagnosis might become underestimated since dentinal lesions underneath non cavitated or minimally demineralized enamel is highly frequent in dental clinics. The aim of this paper is to report a clinical case of a child with an upper molar with questionable occlusal aspect, presenting asymptomatic pulpal hyperplasia on the distolingual pit. Periapical radiographic examination was essential for diagnosing hidden caries and elaborating the treatment plan. As part of the approach, removal of the decayed tissue and pulpotomy with calcium hydroxide were performed. The association of an accurate visual examination to an adequate oral radiographyis is extremely important in cases which the presence of hidden caries is doubtful. As a result, an early diagnosis and the reduction of more invasive interventions related to the oral health care of pediatric patients can be achieved as well.

Photodynamic antimicrobial chemotherapy for prevention and treatment of dental caries: a critical review

Introduction: Photodynamic antimicrobial chemotherapy studies regarding dental caries have been present more frequently in the literature. However, photodynamic antimicrobial chemotherapy depends on the adjustment of variables such as the type of light source and, photosensitisers target microorganism; this makes it difficult to draw meaningful comparisons. The purpose of this paper was to provide a critical review related to this coadjuvant approach in the prevention and treatment of dental caries. Materials and Methods: A database search was made via Medline/PubMed (keywords: photodynamic therapy and dental caries) and 33 articles were found. Results: Twelve articles were included after using the filter tool, being excluded reviews and manuscripts reporting works not related to the studied area. Conclusion: The manuscripts showed that photodynamic therapy presents optimal results against dental caries, even though better understanding of photodynamic antimicrobial chemotherapy and its components are necessary before the clinical application of this alternative modality in the dental practice.

Longitudinal effect of curcumin-photodynamic antimicrobial chemotherapy in adolescents during fixed orthodontic treatment: a single-blind randomized clinical trial study

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

Photodynamic antimicrobial chemotherapy on streptococcus mutans using curcumin and toluidine blue activated by a novel LED device

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Innovation in pediatric surgery: the use of ultrasonic CVD tips: case report

The non-eruption of teeth due to highly keratinized gingival mucosa is a frequent event in the pediatric dentistry, which harms the oral aesthetics and function. A surgical excision of the involved area is indicated, exposing the non-erupted tooth. This procedure involves anesthesia and cutting instruments that may increase the fear and anxiety in young patients. The use of new technologies has avoided these instruments and has promoted more comfort to the patients. This study presents clinical cases in which gingivectomy was performed using the innovative method with an ultrasound-activated CVD tip. It was concluded that this method presented effectiveness, promoted more comfort, and less fear to the patients, making its use a viable alternative to pediatric surgery.

Comparative effects of photodynamic therapy mediated by curcumin on standard and clinical isolate of Streptococcus mutans

Aim: The aim of this study was investigate the effect of photodynamic therapy (PDT) using curcumin (C) as a photosensitizing agent irradiated with an LED (L) in the blue wavelength as a light source on a standard and clinical isolate of Streptococcus mutans (S. mutans) in a planktonic suspension model. Materials and methods: Suspensions of both strains were divided into 4 groups as follows: absence of C and L (control group: C–L–), with C and without L (C group: C+L–), absence of C with L (L group: C–L+) and presence of C and L (PDT group: C+L+). Three different concentrations of curcumin (0.75 mg/ml, 1.5 mg/ml and 3 mg/ml) and three light fluences of studied light source (24, 48 and 72 J cm–2) were tested. Aliquots of each studied group was plated in BHI agar and submitted to colony forming units counting (CFU/ml) and the data transformed into logarithmical scale. Results: A high photoinactivation rate of more than 70% was verified to standard S. mutans strain submitted to PDT whereas the clinical isolate showed a lower sensitivity to all the associations of curcumin and LED. A slight bacterial reduction was verified to C+L– and C–L+, demonstrating no toxic effects to the isolated application of light and photosensitizer to both S. mutans strains tested. Conclusion: Photodynamic therapy using a combination of curcumin and blue LED presented a substantial antimicrobial effect on S. mutans standard strain in a planktonic suspension model with a less pronounced effect on its clinical isolate counterparts due to resistance to this alternative approach. Clinical significance: Alternative antimicrobial approaches, as photodynamic therapy, should be encouraged due to optimal results against cariogenic bacteria aiming to prevent or treat dental caries.