Results 261 to 270 of about 97,515 (304)

Investigating the relationship between the hair fiber proteome and hair quality

International Journal of Cosmetic Science, 2004
Many hair characteristics (e.g. color and curl) are genetically determined. Here, we investigated whether hair quality is also genetically controlled and related to differences in hair composition. Female, Caucasian subjects (n = 292) were recruited into this study and segmented by self‐perceived hair quality and by permanent colorant usage.
D.M. Heywood, C. Vrettou, J. Wood, J. Hill, S. Casey, P.A. Cornwell   +5 more
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Fiber-Safe Extraction of Red Mordant Dyes from Hair Fibers

Journal of the American Institute for Conservation, 1995
To extract red mordant dyes from wool fiber samples, a new method was devised using a solution of 0.1% ethylene diamine tetraacetic acid in water combined with N,N-dimethyl formamide.
Erica J. Tiedemann, Yiqi Yang
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Analysis of DNA in hair fibers.

Journal of cosmetic science, 2003
The extraction and identification of deoxyribonucleic acid (DNA) from human hair shafts is described, along with the effects of hair treatments on levels of DNA and suggestions of DNA location within the shaft. DNA was present at low levels in the hair shaft, and was identified using polymerase chain reaction amplification of the human leukocyte ...
Daniella M, Heywood, Richard, Skinner, Paul A, Cornwell   +2 more
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Examining polyquaternium polymers deposition on human excised hair fibers

Journal of Cosmetic Dermatology, 2017
SummaryBackgroundPolyquaterniums (PQs) as important ingredients of hair products are synthetic cationic polymers and are used in commercial hair volumizers and conditioners.MethodsThree different grades of polymers including PQ 87, 68, and 46 with various concentrations were used, and their hair deposition efficacy was measured at 5 different pH values
Javad Shokri, Maryam Shamseddini Lori, Farnaz Monajjemzadeh   +2 more
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Differential wetting characterization of hair fibers.

Journal of cosmetic science, 2012
Surface wetting is one of the key properties of human hair used to indicate the extent of chemical/mechanical damage and the outcome of conditioning treatment. Characterization of hair wetting property is a challenging task due to the non-homogeneous nature of hair fibers and the requirement for sensitive equipment.
Abe, Vaynberg, Mark, Stuart, Xiang-Fa, Wu   +2 more
openaire   +1 more source

Influence of functionalized silicones on hair fiber–fiber interactions and on the relationship with the macroscopic behavior of hair assembly

International Journal of Cosmetic Science, 2010
J. Cosmet. Sci., 60, 261–271 (March/April 2009)SynopsisIt is well established that silicones alter hair surface properties and that silicones have a significant impact on the macroscopic behavior of hair assembly, such as visual appearance, combing performance and manageability of the hair.
Anne, Dussaud, Lara, Fieschi-Corso
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Repair of sequelae from artificial fiber hair implants with hair‐bearing punch grafting

Head & Neck Surgery, 1985
AbstractSeveral thousand persons had artificial hairs of fiber implanted in their scalps 5 years ago with disastrous results. These persons may still require late repair to remove retained fiber fragments from the skin. The hair‐bearing punch graft is a useful method of repair in some patients.
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The Physical Properties of Hair Fibers

2011
This chapter describes tensile, bending and torsional testing including different parameters of each of these deformations and how these are affected by different types of hair including different types of hair damage. Expanded data sets are included for elastic moduli and other parameters of these deformations.
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A model of the hair cell-primary fiber complex

The Journal of the Acoustical Society of America, 1982
The proposed model consists of a chain of three energy reservoirs through which energy from an infinite supply is fed to a modulator which in turn drives a firing mechanism. The modulator consists of a variable permeability p that depends on instantaneous basilar displacement a through: p = (a−A0)2 for a≳A0, and p = 0 for a?A0, where A0 is a constant ...
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hair fiber

2021
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