Hair Color
Mostrando 1-12 de 42 artigos, teses e dissertações.
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1. 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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2. Parâmetros reprodutivos de touros Nelore (Bos taurus indicus) criados a pasto, em de diferentes faixas etárias
RESUMO Este estudo teve o objetivo de demonstrar o efeito da idade sobre as características de circunferência escrotal, cor de pelagem e qualidade seminal, desde a puberdade até após a maturidade sexual. Foram utilizados dados de 6607 exames andrológicos de touros da raça Nelore criados a pasto. Os animais eram de diferentes faixas etárias, variando d
Arq. Bras. Med. Vet. Zootec.. Publicado em: 06/06/2019
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3. Influence of different cosmetic vehicles in mechanical and physical properties of hair treated with oxidative hair dyes
ABSTRACT Hair care products play a significant role in the cosmetic market and aim at improving hair brightness, breakage resistance, and color change. In this study, we analyzed the possibility of the formulation of oxidative dyes in different vehicles impacting the hair’s both mechanical and physical properties. Light brown and light blond dyes were prep
Braz. J. Pharm. Sci.. Publicado em: 07/06/2018
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4. A química e toxicidade dos corantes de cabelo
The market for hair dye involves a growing range of products, which requires greater understanding of hair properties, mechanisms of action and color development. In this work, we present a critical analysis of the classification, physical and chemical characteristics, chemical analysis and toxicological/mutagenic potential of dyes used in the hair dyeing pr
Quím. Nova. Publicado em: 2014-07
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5. Alterações nos cabelos não pigmentados causadas por radiação ultravioleta, visível e infravermelha / Changes in white hair caused by ultraviolet, visible and infrared radiation
O cabelo branco se torna amarelo com o tempo, apesar de não possuir melanina, o pigmento responsável pela coloração. Este amarelecimento gera insatisfação nas pessoas. Neste trabalho estudamos em profundidade as mudanças de cor e as propriedades mecânicas do cabelo branco após exposição ao UV, Vis e IV, e os fatores que afetam o amarelecimento, in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/07/2011
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6. A influência de atributos físicos na formação de primeiras impressões: uso do TAT e impacto no processo decisório de profissionais de recursos humanos / The effect of physical attributes in the first impressioni nformation: use of Thematic Apperception Test (TAT) and impact in decision-making of human resources employees
The present study intends to verify the effect of physical attributes in decision-making under uncertainty conditions. Facial hair has an important role in the evolutionary history of Homo sapiens with an adaptative value in the ancestor environment. This feature could have been selected in the sexual selection context for intrasexual or intersexual selectio
Publicado em: 2010
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7. Displasias foliculares ligadas à cor da pelagem em cães: displasia folicular dos pêlos pretos e alopecia por diluição da cor. / Colors-linked follicular dysplasias in dogs: black hair follicular dysplasia and color dilution alopecia
As displasias foliculares ligadas à cor da pelagem, também descritas como displasias cutâneas neuroectodermais congênitas, são histopatologica e geneticamente semelhantes e tratam-se, provavelmente, da mesma doença, porém com apresentações clínicas distintas em cães: difusa na Alopecia por Diluição da Cor (ADC) e localizada na Displasia Folicula
Publicado em: 2010
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8. Behavior of Santa Inês sheep of different colors of coat, grazing / Comportamento de ovinos da raça Santa Inês de diferentes cores pelame, em pastejo
The experiment was conducted during the summer in the Agreste region of Pernambuco state in order to evaluate the behavior under conditions of grazing sheep Santa Ines of different colors of coat. The experiment lasted from January 12 to 01 March 2008, with two and six weeks to adapt to data collection. The observations were made every 10 minutes during the
Publicado em: 2010
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9. Diversity among populations goats based on morphometric markers / Diversidade genética entre populações caprinas com base em marcadores morfométricos
The goats were introduced in Brazil by the Portuguese colonizers. Today it is difficult to accurately identify the origin of the Brazilian domestic animals and it is unknown the entire extent of its diversity. The conservation and breeding of domestic animals depend on diversity in the species concerned. Theobjectives of this study were 1. compare different
Publicado em: 2009
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10. Remoção de corantes em solução aquosa e efluentes de indústrias têxteis através de adsorção em cabelo humano / Removal of dyes in water solutions and effluents of textile industries through adsorption on human hair
The color of textile effluent resulting from dyeing processes has been one of the main environmental problems faced by textile industries in recent times, regarding the contamination of natural waters. These effluents are characterized by varied composition and because they are highly colorful due to the presence of dyes that cannot fix themselves during the
Publicado em: 2008
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11. Índices de conforto térmico para ovinos Santa Inês de diferentes cores de pelame em condições de pastejo / Critical levels of thermal confort for Santa Inês sheep under grazing at Agreste Region at Pernambuco State
The objectives of this work were to determine the best physiological parameter indicator of thermal stress in Santa Inês sheeps, to verify coat color influence on tolerance to heat, to determine the most adequate thermal comfort index for these animals under grazing conditions, and to estimate the critical values of comfort index for short hair Santa Inês
Publicado em: 2008
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12. Estudo prospectivo para verificar a ocorrencia e distribuição anatomica de nevos melanociticos numa comunidade holandesa no Brasil : seguimento de 5 anos / Prospective study to verify the ocurrence and anatomic distribution of melanocytic nevi in a dutch community in Brazil : 5-year follw-up
The objective of this study was to verify the development of melanocytic nevi (MN) and ephelides, important risk factors for cutaneous melanoma, in students of a private school who were mostly Dutch and Dutch descendants in Holambra, Brazil and to obtain information about the effects of environmental factors on these individuals who maintained phenotypical c
Publicado em: 2006