scholarly journals ESR Spectrum Attributed to Trisulfide Neutral Radical [RSS(R)S•R] of Protein Observed for α-Keratin Present in White Human Hair

2010 ◽  
Vol 39 (7) ◽  
pp. 756-757 ◽  
Author(s):  
Naoki Yanagi ◽  
Masanao Niwa ◽  
Yasuhiro Sakurai ◽  
Akira Nakajima ◽  
Kenji Kanaori ◽  
...  
Keyword(s):  
Human Hair ◽  
Neutral Radical ◽  
Esr Spectrum

ESR Study of Disulfide Neutral Radical of α-Keratin Present in Dried White Human Hair Exposed to Near-UV Radiation

2010 ◽  
Vol 39 (4) ◽  
pp. 340-341 ◽  
Author(s):  
Naoki Yanagi ◽  
Masanao Niwa ◽  
Yasuhiro Sakurai ◽  
Akira Nakajima ◽  
Kenji Kanaori ◽  
...  
Keyword(s):  
Uv Radiation ◽  
Human Hair ◽  
Neutral Radical

Pathogenesis of Human Hair Defects

1974 ◽  
Vol 32 ◽  
pp. 12-13
Author(s):  
P.S. Porter ◽  
T. Aoyagi ◽  
R. Matta
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Human Hair ◽  
Standard Techniques ◽  
Scanning Electron

Using standard techniques of scanning electron microscopy (SEM), over 1000 human hair defects have been studied. In several of the defects, the pathogenesis of the abnormality has been clarified using these techniques. It is the purpose of this paper to present several distinct morphologic abnormalities of hair and to discuss their pathogenesis as elucidated through techniques of scanning electron microscopy.

Ruthenium Red Staining of Human Hard Keratin Fibers

1982 ◽  
Vol 40 ◽  
pp. 278-279
Author(s):  
M. C. Buhrer ◽  
R. A. Mathews
Keyword(s):  
Human Hair ◽  
Ruthenium Red ◽  
Acid Mucopolysaccharides ◽  
Biochemical Studies ◽  
Keratin Fibers ◽  
Ruthenium Red Staining ◽  
Extracellular Materials

Ruthenium red has been used as a stain to demonstrate a variety of extracellular materials, especially acid mucopolysaccharides. It also reacts with certain intracellular and extracellular lipids. Since biochemical studies in our laboratory demonstrated the presence of a variety of monosaccharides in human hair ruthenium red staining procedures were adopted in order to evaluate the presence and morphological location of acid oligosaccharides in the keratinized aspect of hair.

Human-hair analysis

1992 ◽  
Vol 50 (1) ◽  
pp. 886-887
Author(s):  
Brenda E. Lambert ◽  
Ernest C. Hammond
Keyword(s):  
Human Hair ◽  
Hair Analysis ◽  
Hair Shaft ◽  
White Female ◽  
Chemical Processing ◽  
X Ray ◽  
Hair Samples ◽  
Wave Technique ◽  
Permanent Wave ◽  
Scanning Electron

The purpose of this study was to examine the external structure of four human hair shaft samples with the scanning Electron Microscope (SEM) and to obtain information regarding the chemical composition of hair by using the attached x ray microanalysis unit.The hair samples were obtained from two female subjects. Sample A was taken from a black female and had not undergone any type of chemical processing. Sample B, C, D were taken from a white female, and were natural, processed, and unpigmented, i.e. “gray”, respectively. Sample C had been bleached, tinted, and chemically altered using a permanent wave technique.

Cosmetology treatments on human hair: An SEM study

1996 ◽  
Vol 54 ◽  
pp. 940-941
Author(s):  
D.F. Bowling
Keyword(s):  
High School ◽  
High Resolution ◽  
Human Hair ◽  
Optical Microscope ◽  
Convincing Evidence ◽  
Brightness Contrast ◽  
Sem Study

High school cosmetology students study the methods and effects of various human hair treatments, including permanents, straightening, conditioning, coloring and cutting. Although they are provided with textbook examples of overtreatment and numerous hair disorders and diseases, a view of an individual hair at the high resolution offered by an SEM provides convincing evidence of the hair‘s altered structure. Magnifications up to 2000X provide dramatic differences in perspective. A good quality classroom optical microscope can be very informative at lower resolutions.Students in a cosmetology class are initially split into two groups. One group is taught basic controls on the SEM (focus, magnification, brightness, contrast, specimen X, Y, and Z axis movements). A healthy, untreated piece of hair is initially examined on the SEM The second group cements a piece of their own hair on a stub. The samples are dryed quickly using heat or vacuum while the groups trade places and activities.

A method for culturing human hair follicle cells. (II). Plucked human hair follicles.

1988 ◽  
Vol 50 (2) ◽  
pp. 271-276 ◽  
Author(s):  
Ryuichiro KUWANA ◽  
Seiji ARASE ◽  
Yasushi SADAMOTO ◽  
Hideki NAKANISHI ◽  
Katsuyuki TAKEDA
Keyword(s):  
Hair Follicle ◽  
Human Hair ◽  
Hair Follicles ◽  
Follicle Cells ◽  
Human Hair Follicle

The effects of minoxidil on postconfluent human hair follicle cells.

1989 ◽  
Vol 51 (1) ◽  
pp. 66-70 ◽  
Author(s):  
Ryuichiro KUWANA ◽  
Seiji ARASE ◽  
Yasushi SADAMOTO ◽  
Kimitaka KANNO ◽  
Hideki NAKANISHI ◽  
...  
Keyword(s):  
Hair Follicle ◽  
Human Hair ◽  
Follicle Cells ◽  
Human Hair Follicle

Some flying animals that generate aversion to humans are the bats.

2016 ◽  
pp. 3581-3582
Author(s):  
Alejandro Dueñas
Keyword(s):  
High Frequency ◽  
Human Hair

The incredible faculty of perception of the bat is vinculated to their system of ubication by means of eco resonance so; they are oriented by emitting high frequency sounds orientation, and receipting the echoes. In thaws way, detecting the objetcs around them, Perceiving one antennae no more of 1 mm of diameter, insects of size of a mosquito and objects as thin a human hair.

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