Radiopacidade de materiais restauradores utilizando imagens digitais

The radiopacity of esthetic restorative materials has been established as an important requirement, improving the radiographic diagnosis. The aim of this study was to evaluate the radiopacity of six restorative materials using a direct digital image system, comparing them to the dental tissues (enamel-dentin), expressed as equivalent thickness of aluminum (millimeters of aluminum). Five specimens of each material were made. Three 2-mm thick longitudinal sections were cut from an intact extracted permanent molar tooth (including enamel and dentin). An aluminum step wedge with 9 steps was used. The samples of different materials were placed on a phosphor plate together with a tooth section, aluminum step wedge and metal code letter, and were exposed using a dental x-ray unit. Five measurements of radiographic density were obtained from each image of each item assessed (restorative material, enamel, dentin, each step of the aluminum step wedge) and the mean of these values was calculated. Radiopacity values were subsequently calculated as equivalents of aluminum thickness. Analysis of variance (ANOVA) indicated significant differences in radiopacity values among the materials (PA radiopacidade dos materiais tem sido valorizada como importante requisito, incrementando o diagnóstico radiográfico. O objetivo deste estudo foi avaliar, no sistema digital Digora, as densidades radiográficas de 06 materiais restauradores comparando-os aos tecidos dentais (esmalte e dentina), expressos em milímetros de alumínio (mm Al). Foram confeccionadas 05 amostras de cada material e três cortes de um molar extraído hígido (incluindo esmalte e dentina), com 2 mm de espessura, e um penetrômetro de alumínio com 09 degraus. Sobre cada placa óptica foram colocados amostras dos diferentes materiais, um corte do dente humano, o penetrômetro e a identificação, e feita a exposição utilizando um aparelho de raios X. Foram obtidas 05 medidas de densidade radiográfica de cada item avaliado (material restaurador, esmalte, dentina e degraus do penetrômetro de alumínio) em cada radiografia, e calculadas as médias destas medidas. A partir destas médias de densidade, foram calculados os valores da radiopacidade destes itens em mm de Al, em cada radiografia. Análise de variância (ANOVA) indicou diferença significante entre os valores de radiopacidade dos materiais (

RECURSOS NATURAIS DA CAATINGA UTILIZADOS NOS RITUAIS DO POVO INDÍGENA PANKARARU (PERNAMBUCO/BRASIL)

RESUMO A caatinga é um ecossistema cuja biodiversidade é uma fonte de riqueza para os índios Pankararu, que através de conhecimentos tradicionais usam seus recursos, inclusive como subsídios na construção de elementos para seus ritos sagrados. Neste sentido, é importante ressaltar que a cultura do povo Pankararu está estritamente relacionada com os recursos naturais da caatinga, até mesmo no âmbito de preservação da identidade. O trabalho traz como objetivo principal identificar quais recursos naturais são extraídos da caatinga pela comunidade indígena Pankararu de Pernambuco para uso nos rituais. Nove tipos de plantas foram levantadas, pertencentes a sete famílias botânicas: Anacardiaceae, Arecaceae, Bigoniaceae, Burseraceae, Fabaceae e Urticaceae. Dentre os usos, destacam-se: vestimentas e acessórios, alimentação, instrumentos musicais e uso direto em rituais religiosos. Assim, os recursos naturais da caatinga representam uma fonte de riqueza cultural para os Pankararu, que precisa ser conservada para as futuras gerações. Palavras-chave: Povo Pankararu. Caatinga. Recursos Naturais. Rituais Indígenas. Cultura Indígena Brasileira. Pernambuco. Brasil. ABSTRACT The caatinga is an ecosystem which biodiversity is a source of richness for the Pankararu indigenous people. Through their traditional knowledge these resources are used to subsidize the creation of elements for their sacred rites. Thus, it is important to highlight that Pankararu culture is closely related to the caatinga’s natural resources, including the preservation of Pankararu identity. This study aimed to identify which natural resources are extracted from the caatinga by the Pankararu indigenous community of Pernambuco for use in rituals. Nine types of plants were found, from seven botanical families: Anacardiaceae, Arecaceae, Bigoniaceae, Burseraceae, Fabaceae and Urticaceae. Among the uses we can highlight: clothes and accessories, food, musical instruments and direct use in religious rituals. Therefore, the caatinga’s natural resources are a source of cultural richness for the Pankararu, which needs to be conserved for future generations. Keywords: The Pankararu. Caatinga. Natural Resources. Indigenous Rituals. Brazilian Indigenous Culture. Pernambuco. Brazil

COMPARAÇÃO ENTRE OS SISTEMAS DE VOLUME DE REFRIGERANTE VARIÁVEL E SISTEMA DE ÁGUA GELADA

Este trabalho visa realizar uma comparação entre sistemas de refrigeração, analisando os sistemas de Volume de Refrigerante Variável e de Água Gelada para atender ao prédio 6 do campus na Universidade Santa Úrsula, onde atualmente é atendido por condicionadores de ar tipo split que tem um elevado consumo de energia. A análise será feita através do dimensionamento e seleção de equipamentos de cada um dos casos, a partir do cálculo de carga térmica, onde serão avaliados diversos parâmetros, como viabilidade de instalação, eficiência energética, capacidade térmica e análise financeira

Coupled Plasma Filtration Adsorption in Patients with a History of Kidney Transplantation: Report of Two Cases

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Uvulopalatopharyngoplasty and barbed reposition pharyngoplasty with and without hyoid suspension for obstructive sleep apnea hypopnea syndrome: A comparison of long-term functional results

Obstructive sleep apnea hypopnea syndrome (OSAHS) is a common condition; when conservative approaches are not effective, surgical techniques aimed at reducing the airway obstruction effect are used. This retrospective study aimed at comparing the functional outcomes in patients with OSAHS undergoing uvulopalatopharyngoplasty (UPPP) according to Fairbanks and barbed reposition pharyngoplasty (BRP) according to Mantovani, with or without hyoid suspension (HS). One-hundred twenty-two consecutive OSAHS patients who underwent surgical treatment were included in the study. Patients were divided into 4 groups; all patients underwent preoperative and postoperative polysomnography (PSG) with apnea/hypopnea index (AHI) and oxygen desaturation index (ODI) evaluation, and Epworth Sleepiness Scale (ESS) evaluation. The results were analyzed according to the different surgical procedures, in relation to the preoperative PSG and anthropometric data. A significant reduction was observed at 18-month follow-up for patients in BRP group for BMI (p = 0.004), ESS (p < 0.0001), ODI (p < 0.0001), and AHI (p < 0.0001). Risk factors for poor postoperative AHI reduction were evaluated; preoperative AHI was the strongest independent protective factor, while preoperative ODI was the strongest risk factor. The association of HS with UPPP or BRP showed significant results in terms of higher postoperative AHI reduction only when associated to UPPP (p < 0.0001). This study showed that the BRP technique was more effective compared to UPPP for patients with OSAHS. The association of HS showed greater benefits in UPPP compared to BRP.  Randomized prospective trials with longer follow-up are necessary to confirm our results and formulate a more accurate indication of the optimal therapeutic strategy

Impact of remnant vital tissue after locoregional treatment and liver transplant in hepatocellular cancer patients. A multicentre cohort study

The role of pathological findings after locoregional treatments as predictors of hepatocellular cancer recurrence after liver transplantation has been poorly addressed. The aim of the study was to identify the role of remnant vital tissue (RVT) of the target lesion in predicting hepatocellular cancer recurrence. Two hundred and seventy-six patients firstly undergoing locoregional treatment and then transplanted between January 2010 and December 2015 in four European Transplant Centres (i.e. Rome Tor Vergata, Birmingham, Brussels and Ancona) were enrolled in the study to investigate the role of pathological response at upfront locoregional treatment. At multivariable Cox regression analysis, RVT ≥2 cm was a strong independent risk factor for post-LT recurrence (HR = 5.6; P < 0.0001). Five-year disease-free survival rates were 60.8%, 80.9% and 95.0% in patients presenting a RVT ≥2 cm vs. 0.1-1.9 vs. no RVT, respectively. When only Milan Criteria-IN patients were analysed, similar results were reported, with 5-year disease-free survival rates of 58.1%, 79.0% and 94.0% in patients presenting a RVT ≥2 cm vs. 0.1-1.9 vs. no RVT, respectively. RVT is an important determinant of tumour recurrence after liver transplantation performed for hepatocellular cancer. Its discriminative power looks to be evident also in a Milan-IN setting, suggesting to more liberally use locoregional treatments also in these patients

Melanoma de Pênis Tratado Conservadoramente: Relato de Caso e Revisão da Literatura

Melanomas do pênis são tumores malignos muito agressivos. Descrevemos o caso de um paciente com uma lesão confinada ao prepúcio e com linfonodos inguinais clinicamente negativos, tratados conservadoramente. O paciente submeteu-se à ressecção alargada da lesão para tratamento e diagnóstico. O tratamento das regiões inguinais em pacientes com melanoma de pênis permanece controvertido, uma vez que a incidência de doença metastática é significativamente mais baixa nos pacientes com estádios patológicos iniciais. Como nesse paciente o estádio patológico do melanoma de pênis era T2a (profundidade 1,9 mm, sem ulceração), decidimos usar linfocintigrafia pré-operatória, mapeamento intra-operatório dos linfonodos e biópsia do linfonodo sentinela para avaliar o comprometimento metastático inguinal. Cortes de congelação do linfonodo sentinela direito retirado foram negativos para malignidade e nenhum tratamento adjuvante foi realizado. A ressecção alargada da lesão permitiu efetivo controle local do tumor peniano e o paciente é mantido em acompanhamento clínico pós-operatório

Sexual addiction in drug addicts: The impact of drug of choice and poly-addiction

Objective: To compare the risk of comorbid sexual addiction in a sample of individuals with a diagnosis of substance dependence, stratifying the sample by drug of choice as well as by mono versus polysubstance addiction. Method: All data were collected at Santa Casa de Sao Paulo, Brazil. The study sample comprised all alcohol or drug dependents admitted to the Addiction Treatment Unit between November 2013 and August 2014. A generalized linear model with a binomial distribution was performed to compare the odds of having a Sexual Addiction Screening Test (SAST) score greater than 6 points in the subgroups analyzed. Results: A total of 133 participants were included in our analysis, all reporting cocaine/crack and/or alcohol as drug of choice. Polysubstance addicts had a significant higher risk of a positive screening for sexual addiction compared to monosubstance addicts, age-sex adjusted odds ratios of sexual addiction being respectively 2.72 (95CI 1.1-6.71) and 0.37 (95CI 0.15-0.91). The odds of a SAST score greater than 6 was not statistically different between the cocaine/crack and alcohol groups, respectively 0.38 (95CI 0.14-1.02) and 2.67 (95CI 0.98-7.25). We found a significant relation between stronger drug addiction and greater levels of sexual addiction in the cocaine/crack group (p=0.0012), but not in the alcohol group. Conclusion: Our study reinforces the importance of assessing sexual behavior of drug addicts in clinical practice, especially considering users of multiple substances or with severe dependence.FCMSCSP, Ctr Integrated Mental Hlth CAISM, Sao Paulo, SP, BrazilUniv Fed Sao Paulo Unifesp, Psychiat Dept, Sexual Studies Grp Gesex, Sao Paulo, SP, BrazilUniv Sao Paulo, Escola Enfermagem Ribeirao Preto, Psychiat Nursing & Social Sci Dept, Ribeirao Preto, SP, BrazilUniv Fed Sao Paulo, Psychiat Dept, Sao Paulo, SP, BrazilUniv Fed Sao Paulo Unifesp, Psychiat Dept, Sexual Studies Grp Gesex, Sao Paulo, SP, BrazilUniv Fed Sao Paulo, Psychiat Dept, Sao Paulo, SP, BrazilWeb of Scienc