Category: Hair
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Retinoblastoma protein, dysfunctional in several cancers, belongs to the pocket protein family and is a recruiter of chromatin remodeling enzymes
The retinoblastoma protein (protein name abbreviated Rb; gene name abbreviated Rb, RB or RB1) is a tumor suppressor protein that is dysfunctional in several major cancers. One function of pRb is to prevent excessive cell growth by inhibiting cell cycle progression until a cell is ready to divide. When the cell is ready to divide, pRb is phosphorylated, inactivating it, and the cell cycle is allowed to progress. It is also a…
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Isoleucine, Tryptophol, Sleeping Sickness, The Disulfiram Effect and One Trick Hypnotists From Hell
Isoleucine (symbol Ile or I) is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated âNH+3 form under biological conditions), an α-carboxylic acid group (which is in the deprotonated âCOOâ form under biological conditions), and a hydrocarbon side chain with a branch (a central carbon atom bound to three other carbon atoms). It is classified as a non-polar, uncharged (at physiological pH), branched-chain, aliphatic amino acid. It…
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Albumen prints and egg whites…all the rage back in the day…and a few other things
The albumen print, also called albumen silver print, was published in January 1847 by Louis DĂ©sirĂ© Blanquart-Evrard, and was the first commercially exploitable method of producing a photographic print on a paper base from a negative. It used the albumen found in egg whites to bind the photographic chemicals to the paper and became the dominant form of photographic positives from 1855 to the start…
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p-Phenylenediamine (PPD) is a derivative of aniline used in kevlar, hair dye and henna substitutions among other things, the derivatives of which are used in antiozonants among other horrors
p-Phenylenediamine (PPD) is an organic compound with the formula C6H4(NH2)2. This derivative of aniline is a white solid, but samples can darken due to air oxidation.It is mainly used as a component of engineering polymers and composites like kevlar. It is also an ingredient in hair dyes and is occasionally used as a substitute for henna. Production PPD is produced via three routes. Most commonly, 4-nitrochlorobenzene is treated…
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Did WHO Study Conclude That Natural Blondes Are Likely To Be Extinct Within 200 Years? – Snopes
https://www.snopes.com/fact-check/gone-blonde/ Evidently these things or things very like them have been published (here and elsewhere) since at least the time of the Civil War. This quote is said to be from an article dated 1890: The girl with the golden tresses is doomed, and within six hundred years blondes will be extinct. The fate of…
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Freeze branding aka CryoBranding and the resulting brands, trichoglyphs, is a technique involving a cryogenic coolant instead of heat to produce permanent marks on a variety of animals
The coolant is used to lower the temperature of a branding iron such that its application to shaved skin will permanently alter hair follicles. The intense cold destroys the pigmentation apparatus in the animal’s hair follicles, leaving all subsequent hair growth without color. This creates a high-contrast, permanent mark in the shape of the branding iron’s head. A longer application of the cold iron can also…
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nature’s first Green Fuel Is gold: A Car That Runs On Urine?
The concept of cars running on urine has been explored by several researchers, but it hasn’t yet resulted in a commercially viable vehicle. Here’s what happened with some of the key developments: Ohio University Research (2009): Professor Gerardine Botte developed a catalyst that could extract hydrogen from urine more efficiently than from water. This technology…
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Cells in the APUD system may include melanocytes
Melanocytes are melanin-producing neural crest-derived cells located in the bottom layer (the stratum basale) of the skin’s epidermis, the middle layer of the eye (the uvea), the inner ear, vaginal epithelium, meninges, bones, and heart. Melanin is a dark pigment primarily responsible for skin color. Once synthesized, melanin is contained in special organelles called melanosomes which can be transported to nearby keratinocytes to induce pigmentation. Thus darker skin tones have more melanosomes present than lighter skin tones. Functionally, melanin serves as protection…
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Moulting was known as mewing in medieval times
In biology, moulting (British English), or molting (American English), also known as sloughing, shedding, or in many invertebrates, ecdysis, is the manner in which an animal routinely casts off a part of its body (often, but not always, an outer layer or covering), either at specific times of the year, or at specific points in its life cycle. In medieval times it was also…
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Peris
In Persian mythology, Peris are exquisite, winged spirits renowned for their beauty. Peris were later adopted by other cultures. They are described in one reference work as mischievous beings that have been denied entry to paradise until they have completed penance for atonement.[need quotation to verify] Under Islamic influence, Peris became benevolent spirits, in contrast to the mischievous jinn and evil divs (demons). Scholar Ulrich Marzolph [de] indicates an Indo-Iranian origin for peris, which were later[when?] integrated into…
