Results 261 to 270 of about 19,142 (297)
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International Journal of Cosmetic Science, 2010
SynopsisHair cuticle is the first protection shield of hair against external aggressions such as daily combing or brushing that induce friction, mechanical stress leading to ageing process. The identification of alterations of the hair surface induced by shaking process of various hair fibres, such as virgin and chemically treated Chinese and Caucasian
A, Galliano +11 more
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SynopsisHair cuticle is the first protection shield of hair against external aggressions such as daily combing or brushing that induce friction, mechanical stress leading to ageing process. The identification of alterations of the hair surface induced by shaking process of various hair fibres, such as virgin and chemically treated Chinese and Caucasian
A, Galliano +11 more
openaire +4 more sources
Combing damage to hair cuticle structure
International Journal of Cosmetic Science, 2008Optical probing of hair fibres is an elegant, non‐invasive method to monitor the fibre surface and its changes with various grooming protocols. In this paper, a goniophotometer with a He‐Ne light source was used to study reflection profiles from single hair fibres in both the root‐to‐tip and tip‐to‐root orientations of the fibre.
K. Ram Ramaprasad +3 more
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Science, 1963
The filamentous roots of mustard ( Raphanus sativus ), radish ( Brassica nigra ), squash ( Cucurbita pepo ), and wheat ( Triticum aestivum ) are covered throughout their length with living nucleated root hairs which may measure 1600 μ or more ...
F M, Scott, B G, Bystrom, E, Bowler
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The filamentous roots of mustard ( Raphanus sativus ), radish ( Brassica nigra ), squash ( Cucurbita pepo ), and wheat ( Triticum aestivum ) are covered throughout their length with living nucleated root hairs which may measure 1600 μ or more ...
F M, Scott, B G, Bystrom, E, Bowler
openaire +2 more sources
Fine Structure of the Fully Keratinized Hair Cuticle in the Head Hair of the Human
Cells Tissues Organs, 1981The cuticle is composed of five cell layers in the cross section of the hair at a level of 100 mm above the scalp. Intercellular junctions between two cuticular cells are zonulae occludentes (tight junction); they consist of five layers. The gap junctions of the intercellular communications occur near the cortex. The trichohyalin granule appears in the
H, Muto, N, Ozeki, I, Yoshioka
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Subgroup differentiation in the Cervidae by hair cuticle analysis
Zeitschrift für Jagdwissenschaft, 2001Based on computer-assisted methods (SEM, LM) and regression analysis, several structural parameters of the hair cuticle pattern of guard hairs of 10 cervid species were evaluated. Relevant relationships could be demonstrated for the ratio of scale width to height, hair index, and hair diameter.
W. Meyer +3 more
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A highly resistant structure between cuticle and cortex of human hair
International Journal of Cosmetic Science, 2016AbstractObjectiveTo clarify the presence and properties of a unique structure which is located between the cuticle and cortex of human hair.MethodsWhole hair fibre and longitudinally split hair were used. Treated with a mixture of urea, reductant and alkaline, hair was split at the interface between cuticle and cortex. The residues in the solution were
T, Takahashi, S, Yoshida
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Journal of Cosmetic Dermatology, 2017
SummaryObjectivesTo determine whether the oxidative stress transmitted to newly grown hair from an unhealthy scalp has physical consequences to the cuticular condition and function.MethodsA uniquely designed 24‐week clinical study included 8 weeks of pretreatment with a cosmetic shampoo and 16 weeks of treatment with either a potentiated zinc ...
James R. Schwartz +5 more
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SummaryObjectivesTo determine whether the oxidative stress transmitted to newly grown hair from an unhealthy scalp has physical consequences to the cuticular condition and function.MethodsA uniquely designed 24‐week clinical study included 8 weeks of pretreatment with a cosmetic shampoo and 16 weeks of treatment with either a potentiated zinc ...
James R. Schwartz +5 more
openaire +2 more sources
Photonic Rendering for Hair Cuticles using High Accuracy NS-FDTD method
ACM SIGGRAPH 2021 Talks, 2021The internal structure of hair consists of three layers: the cuticle, the cortex, and the medulla, and there are multiple membrane structures inside the cuticle. Light incident on these subwavelength structures is subject to scattering and interference phenomena, and the reflected highlights vary depending on the viewing angle. This phenomenon of light
Zhuo Hou, Dongsheng Cai, Ran Dong
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The electron microscopy of the human hair follicle. II. The hair cuticle.
The Journal of biophysical and biochemical cytology, 20021. During the early differentiation of the cuticle the cell membranes smooth out and the cells become closely attached over most of their surface. The change seems to be due to a layer of cement which forms between them. The plasma membranes also increase in density. 2.
M S, BIRBECK, E H, MERCER
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Scanning Electron Microscope Evaluation of Hair Dye Effects on the Cuticle Cells of Canine Hair
Proceedings, annual meeting, Electron Microscopy Society of America, 1985Skin and hair are exposed to environmental factors such as pollutants sun & water(Garcia et al 1978). Hair care products are designed to reduce the damage of environmental influences and for cosmetic reasons. Hair dye products are brought into contact with the hair shaft and the scalp, and on occasions, may penetrate as deeply as the hair roots ...
F. Al-Bagdadi +3 more
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