Results 221 to 230 of about 226,444 (263)
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Yesterday's hair--human hair in archaeology.
Biologist (London, England), 2002No
Wilson, Andrew S. +6 more
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Probabilities and Human Hair Comparison
Journal of Forensic Sciences, 1982Abstract Critical review shows that probability estimates regarding human scalp and pubic hair individualization are in error owing to defects in experimental design. The inherent bias is evaluated to preclude improper use of these probability estimates in the future.
P D, Barnett, R R, Ogle
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Water management of human hair
International Journal of Cosmetic Science, 2008Citation: IFSCC Magazine, 10 (2007) (4) 317–320Temperature dependent isotherms for the water ab‐ and desorption of human hair were determined (25–65°C) together with the related diffusion coefficients and hysteresis effects. Special care was taken to standardize the physical history of the samples.
Wortmann, F, Hullmann, A, Popescu, C
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Content of Tryptophan in Human Hair
1991Previous papers have shown that tryptophan is involved in the process of melanogenesis (Musajo et al., 1966; Musajo et al., 1969; De Antoni et al., 1970; Allegri et al., 1972; De Antoni et al., 1974; Costa et al., 1975). In fact, tryptophan and also kynurenines and indolic hydroxylated metabolites form melanins by the action of tyrosinase from Sepia ...
G, Allegri +3 more
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Styling and animating human hair
Systems and Computers in Japan, 2002AbstractSynthesizing facial images by computer graphics (CG) has attracted attention in connection with the current trends toward synthesizing virtual faces and realizing communication systems in cyberspace. In this paper, a method for representing human hair, which is known to be difficult to synthesize in computer graphics, is presented.
Keisuke Kishi, Shigeo Morishima
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Multiscale modelling of human hair
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2004We present a multiscale modelling approach to the mechanics of human hair fibres. On the microscale, a coiled coil of filament proteins was mechanically unfolded in a molecular-dynamics simulation. The force at unfolding was found to be ca. 1 nN, which we estimated to be an order of magnitude above the reversible force.
Reinier L C, Akkermans +1 more
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Testing human hair for cannabis
Forensic Science International, 1995To validate information on cannabis use, we investigated human hair and pubic hair for cannabinoids (THC and THC-COOH) by gas chromatography/mass spectrometry. Samples (100 mg approximately) were decontaminated with methylene chloride, then pulverized and dissolved in 1 ml 1 N NaOH for 10 min at 95 degrees C in the presence of 200 ng of deuterated ...
V, Cirimele, P, Kintz, P, Mangin
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Keratins of the Human Hair Follicle
2005Substantial progress has been made regarding the elucidation of differentiation processes of the human hair follicle. This review first describes the genomic organization of the human hair keratin gene family and the complex expression characteristics of hair keratins in the hair-forming compartment. Sections describe the role and fate of hair keratins
Lutz, Langbein, Jürgen, Schweizer
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Nature, 1965
GREYING of hair is probably the most obvious sign of ageing in man. To determine whether or not its onset and progress are influenced by hair colour we have examined a sample of Australians.
E V, Keogh, R J, Walsh
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GREYING of hair is probably the most obvious sign of ageing in man. To determine whether or not its onset and progress are influenced by hair colour we have examined a sample of Australians.
E V, Keogh, R J, Walsh
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Journal of Photochemistry and Photobiology B: Biology, 2007
In general, human hair is claimed to turn yellower after sun exposure. This is particularly affirmed for white hair. However, quantitative data relating yellowness to hair type and to the radiation wavelength are missing. This work shows results of the effect of full or UVB-filtered radiation of a mercury vapor or a xenon-arc lamp on the yellowness of ...
A C S, Nogueira +3 more
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In general, human hair is claimed to turn yellower after sun exposure. This is particularly affirmed for white hair. However, quantitative data relating yellowness to hair type and to the radiation wavelength are missing. This work shows results of the effect of full or UVB-filtered radiation of a mercury vapor or a xenon-arc lamp on the yellowness of ...
A C S, Nogueira +3 more
openaire +2 more sources