Composition
Mostrando 37-48 de 14572 artigos, teses e dissertações.
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37. Effects of chemical straighteners on the hair shaft and scalp
Abstract Background The effects of chemical straighteners on the scalp and hair shaft are not fully known, although such substances are widely used. Hair straightening became popular in Brazil with the use of formaldehyde and its derivatives, despite the prohibition by the current legislation. Objective To identify changes in hair shaft and scalp caused by
Anais Brasileiros de Dermatologia. Publicado em: 2022
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38. Biomarkers in Source Rocks from Barreirinha Formation (Devonian): Distribution and Paleoenvironment Significance
The Barreirinha Formation-Upper Devonian, is the main petroleum source rock of the Amazon Basin, deposited during the great Devonian Transgression, contributing to significant accumulations of organic matter (OM) in anoxic conditions, which allowed its preservation. The present work had the objective of characterizing the molecular composition of biomarkers
Journal of the Brazilian Chemical Society. Publicado em: 2022
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39. Selective formation of neodymium phosphate from iron-neodymium magnet waste
Abstract Neodymium-iron-boron alloy, Nd2Fe14B, is used as a material for magnets. Neodymium is one of the valuable and expensive rare earth elements and is often recovered to reduce costs and environmental impact. Recently, a method for recovering neodymium as neodymium phosphate from mixed solutions was reported. This method was very useful because the main
Cerâmica. Publicado em: 2022
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40. Mineral composition and clinical aspects of urolithiasis in cats in Brazil
RESUMO Entre outubro de 2016 e outubro de 2017, 63 urólitos felinos foram analisados na Universidade Federal de Goiás (UFG), usando-se tanto análise química quanto espectroscopia por energia dispersiva (EDS). O tipo de mineral mais encontrado foi o estruvita (53,9%), seguido pelo urato (39,7%), oxalato de cálcio (30,1%) e fosfato de cálcio (25,3%). Cá
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2022
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41. Evaluation of the Structural Integrity of Layered Double Hydroxides and Mesoporous Silica During the Preparation of Heterostructures
Heterostructures constructed with mesoporous silica and layered double hydroxides are interesting for catalytic and drug delivery applications. Different arrangements between these phases are possible. In this study, we prepared heterostructures by embedding layered double hydroxides phases [M4Al2(OH)12](CO3) (M = Mg2+ or Zn2+) within the MCM41 mesoporous si
Journal of the Brazilian Chemical Society. Publicado em: 2022
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42. Nutritional profile and outcomes of noncritical hospitalized patients with COVID-19 in a large tertiary hospital in southern Brazil
SUMMARY INTRODUCTION: Patients with chronic diseases, such as diabetes and cardiovascular diseases, and old age, which are associated with a high risk of malnutrition and worse outcomes, are at a higher risk for developing the severe presentation of COVID-19. METHODS: This is an observational and cross-sectional study with a sample defined by convenience.
Revista da Associação Médica Brasileira. Publicado em: 2022
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43. Bud position influence the fruit quality attributes of three blueberry (Vaccinium ashei Reade) cultivars
ABSTRACT Blueberry farming can be considered an excellent alternative to diversify the family income. In addition, the fruits have several health benefits thanks to the presence of phenolic compounds and anthocyanins, however blueberries chemical composition is affected by edaphoclimatic conditions and bud position within the shoot. Therefore, the objective
Revista Ceres. Publicado em: 2022
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44. Challenges of TiO2-composite, as a visible active photocatalyst material for SARS-CoV-2 antiviral compared with the other viruses
The efforts in dealing with COVID-19 in various aspects are continuously being carried out, such as the photocatalytic process. Interestingly, TiO2 plays an important role as an environmentally friendly photocatalyst with a visible and UV absorption range. The increase in the antiviral performance of this compound is further maximized by formulating TiO2-bas
Química Nova. Publicado em: 2022
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45. Genetic diversity and correlation network approach on cotton genotypes in southern of Minas Gerais
ABSTRACT The cultivation of Cotton (Gossypium hirsutum) is trending in an upward expansion at Minas Gerais state, Brazil. Due this growth, the breeding program has been demanded for the knowledge about the genetic diversity and correlation between morpho-agronomic traits, to start interesting crosses. The objective of this work was to study the genetic diver
Revista Ceres. Publicado em: 2022
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46. Evaluation of different tools for body composition assessment in colorectal cancer - a systematic review
RESUMO Contexto: O estado nutricional de pacientes com câncer colorretal (CCR) tem impacto na resposta ao tratamento e na morbidade. Uma avaliação eficaz da composição corporal inclui as medidas de gordura visceral e massa livre de gordura e está sendo usada atualmente no diagnóstico do estado nutricional. O melhor entendimento das ferramentas nutric
Arquivos de Gastroenterologia. Publicado em: 2022
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47. METABOLIC PROFILING AND CYTOTOXIC ACTIVITY OF METHANOL EXTRACTS FROM CHAMAECRISTA DUCKEANA (P. BEZERRA & A. FERN.) H. S. IRWIN & BARNEBY (LEGUMINOSAE, CAESALPINIOIDEAE)
The genus Chamaecrista comprises more than 330 species, with only a few studies on their chemical composition and biologic activities. In this study, the phytochemical profile of leaf, stems, and fruits extracts of the C. duckeana were examined by UPLC ESI HRMS analysis to determine possibly bioactive constituents. The antioxidant activity was carried out th
Química Nova. Publicado em: 2022
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48. Environmental effects of leachate extracts from reclaimed asphalt pavement: determination of metals, polycyclic aromatic hydrocarbon and acute toxicity to Daphnia magna
RESUMO Reclaimed Asphalt Pavement (RAP) has a variety of organic and inorganic compounds that can interact with the environment and promote deleterious effects on human health. This study investigated the potential toxicity of RAP through metal determination, polycyclic aromatic hydrocarbon (PAH) analysis and acute toxicity tests with Daphnia magna. Leached
Engenharia Sanitaria e Ambiental. Publicado em: 2022