Ph Meter
Mostrando 1-12 de 41 artigos, teses e dissertações.
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1. INTERDISCIPLINARY EDUCATION THROUGH THE DEVELOPMENT OF A COST-EFFECTIVE PHOTOMETRIC PH METER SENSOR USING NATURAL PIGMENTS
There is a trend of development of analytical methodologies and technologies that allow in situ analysis, producing accurate information in real time, at low cost, using homemade experiments and devices to increase interest in scientific knowledge with a constructive approach in an interdisciplinary perspective in Chemistry Education. In this context, a phot
Química Nova. Publicado em: 2022
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2. Meta-Analysis of Pulmonary Artery Denervation for Treatment of Pulmonary Hypertension
ABSTRACT Introduction: Pulmonary artery denervation (PADN) can reduce the sympathetic nervous system (SNS) activity, reduce pulmonary artery pressure (PAP), and improve the quality of life in patients with pulmonary hypertension (PH). We conducted a systematic meta-analysis of the effectiveness of PADN in the treatment of PH patients. Methods: This is a co
Brazilian Journal of Cardiovascular Surgery. Publicado em: 2022
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3. Prediction of pH and color in pork meat using VIS-NIR Near-infrared Spectroscopy (NIRS)
Abstract The potential of near-infrared spectroscopy (NIRS) to predict the physicochemical characteristics of the porcine longissimus dorsi (LD) muscle was evaluated in comparison to the standard methods of pH and color for meat quality analysis compared to the pH results with Colorimeter and pH meter. Spectral information from each sample (n = 77) was obta
Food Sci. Technol. Publicado em: 11/06/2018
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4. The pH of the main Brazilian commercial moisturizers and liquid soaps: considerations on the repair of the skin barrier
Abstract: The pH of the skin is slightly acidic (4.6 to 5.8) which is important for appropriate antibacterial, antifungal, constitution of barrier function, as well as structuring and maturation of the stratum corneum. This study aimed to evaluate the pH of the main commercial moisturizers and liquid soaps in Brazil. Thus, pH of the products was quantified b
An. Bras. Dermatol.. Publicado em: 2017-10
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5. Effect of addition of nano-hydroxyapatite on physico-chemical and antibiofilm properties of calcium silicate cements
ABSTRACT Objective Mineral Trioxide Aggregate (MTA) is a calcium silicate cement composed of Portland cement (PC) and bismuth oxide. Hydroxyapatite has been incorporated to enhance mechanical and biological properties of dental materials. This study evaluated physicochemical and mechanical properties and antibiofilm activity of MTA and PC associated with z
J. Appl. Oral Sci.. Publicado em: 2016-06
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6. Influence of 2% chlorhexidine on pH, calcium release and setting time of a resinous MTA-based root-end filling material
The addition of chlorhexidine (CHX) to a resinous experimental Mineral Trioxide Aggregate (E-MTA) based root-end filling material is an alternative to boost its antimicrobial activity. However, the influence of chlorhexidine on the properties of this material is unclear. The aim of this study was to evaluate the influence of 2% chlorhexidine on the pH, calci
Braz. oral res.. Publicado em: 11/02/2015
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7. Estudo in vitro da variação do pH de agentes clareadores e seu efeito sobre o desgaste e rugosidade superficial do esmalte bovino após escovação simulada / Variation of pH bleaching gels, wear and roughness of bovine enamel after tooth brushing abrasion test.
This in vitro study evaluated the variation of the pH of bleaching gels, roughness and the wear on bovine enamel, after various in office bleaching protocols and brushing. Ninety fragments of enamel, measuring 15mm x 5mm, were randomly divided into nine groups (n=10) according to bleaching procedure: G1: control; G2: 35% hydrogen peroxide (HP) (Whiteness HP,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/05/2011
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8. Evaluation of gastric pH in dogs treated with omeprazole - an experimental study / Avaliação do pH gástrico de cães tratados com omeprazol – estudo experimental
The antisecretory gastric acid drugs are widely used in veterinary medicine, however there are few studies on these drugs in dogs being that many of these data are taken from human medicine. Among these drugs, one of the most used is the omeprazole due to its bigger potency by blocking the hydrochloric acid production in the stomach. This study aimed to meas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/03/2011
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9. Trifoliata hybrids rootstocks for 'Lane Late' navel orange in Spain
Carrizo citrange [Citrus sinensis (L.) Osb. × Poncirus trifoliata (L.) Raf.] and Cleopatra mandarin (C. reshni Hort. ex Tan.) are the most important rootstocks used in Spain, but they are problematic and it is necessary to search for new rootstocks with better all-round performance. The performance of 'Lane Late' navel orange [Citrus sinensis (L.) Osb] on t
Scientia Agricola. Publicado em: 2011-10
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10. pH and calcium ion release evaluation of pure and calcium hydroxide-containing Epiphany for use in retrograde filling
OBJECTIVE: Hydroxyl (OH-) and calcium (Ca++) ion release was evaluated in six materials: G1) Sealer 26, G2) White mineral trioxide aggregate (MTA), G3) Epiphany, G4) Epiphany + 10% calcium hydroxide (CH), G5) Epiphany + 20% CH, and G6) zinc oxide and eugenol. MATERIAL AND METHODS: Specimens were placed in polyethylene tubes and immersed in distilled water. A
Journal of Applied Oral Science. Publicado em: 2011-02
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11. Avaliação de parâmetros limnológicos, parasitas, bactérias e metais pesados em água superficial no córrego Ribeirão Preto, Ribeirão Preto - SP / Evaluation of limnological parameters, parasites, bacteria and heavy metals in superficial water of Ribeirão Preto Stream, Ribeirão Preto-SP.
Water is fundamental to life. Its multiple uses are needed for a broad spectrum of human activities, among which stand out, the public and industrial supply, agricultural irrigation, the production of electricity and leisure activities and recreation. It is known that Brazil still has a privileged position of water quantity and quality, but their use hasnt b
Publicado em: 2010
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12. Variação espaço-temporal do zooplâncton do baixo estuário do Rio Itajai-Açu, SC
The Basin of the Itajaí-açu River is the largest of Santa Catarina State, Southern Brazil, extending 15,111 Km2 and encompassing the states main industrial zone. Next to the river mouth lays the Itajaí Harbor, which is the principal outlet of international trading of the state and one of the main harbors of the country. The estuarine region aggregates sed
Publicado em: 2008