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"melanin" - 3 õppematerjali

Inimene-anatoomia
4
doc

Inimene (anatoomia)

Antakse info üle. · Inimesel ca 80% Elundkonnad 1. KATTEELUNDKOND Nahk ­ suurim elund · Kaitseb (väliste vigastuste; haigustekitajate, kiirguste, veekao eest) - Nahal elab mitmesuguseid baktereid, enamik neist on hädavajalikud kuna kaitsevad haigustekitajate eest. · Sünteesib erinevaid ühendeid - (Inimese nahas sünteesitakse päikesekiirguse mõjul pigmenti melanin) - D-vitamiin on väga vajalik luude ja hammaste jaoks, kaltsiumi imendumisel, vere hüübimisel, stabiilse närvisüsteemi säilitamisel. (lühinägelikkus, väsimus, hammaste lagunemine, kuulmise nõrgenemine) · Säilitab kehatemperatuuri - Nahas on hulgaliselt väikeseid veresooni ja kapillaare - Kui õhutemperatuur tõuseb siis veresooned laienevad. · Meeleelund ­ valu, soe, külm, puudutus

Bioloogia → Bioloogia
60 allalaadimist
Cats
356
docx

Cats

Don Shaw was an early feline geneticist in the USA. During the 1950s and 1960s, there was no standard form of genetic coding and Shaw used his own system of genetic coding which can be difficult to read today. He also referred to chocolate, which is a mutation of the black gene, as "chocolate dilution". What modern fanciers call dilution, Shaw called "maltesing" (Maltese i.e. blue cats were a genuine dilution of black). Shaw viewed dilution as being due to the reducing amount of melanin present in the hair and not by the way pigment forms clumps in the hair. Chocolate had less melanin than black, therefore Shaw called this dilution. Blue has a the same amount of melanin, but arranged differently, so Shaw did not consider this dilution. In simple terms, the black (eumelanin) colours in cats is due to a series of genes (alleles to be precise) with the following order of dominance/recessive (most dominant at the top, most recessive at the bottom)

Keeled → Inglise keel
6 allalaadimist
The 4-Hour Body - An Uncommon Guide to Rapid Fat-Loss-Incredible Sex-and Becoming Superhuman - Timothy Ferriss
574
pdf

The 4-Hour Body - An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman - Timothy Ferriss

exclusively with weight-bearing exercise, but we will look at precise "dosing" of both exercise and anything you ingest.1 Anything beyond the MED is wasteful. To boil water, the MED is 212°F (100°C) at standard air pressure. Boiled is boiled. Higher temperatures will not make it "more boiled." Higher temperatures just consume more resources that could be used for something else more productive. If you need 15 minutes in the sun to trigger a melanin response, 15 minutes is your MED for tanning. More than 15 minutes is redundant and will just result in burning and a forced break from the beach. During this forced break from the beach, let's assume one week, someone else who heeded his natural 15-minute MED will be able to t in four more tanning sessions. He is four shades darker, whereas you have returned to your pale pre-beach self. Sad little manatee. In biological systems, exceeding your MED can freeze progress for weeks, even months.

Keeled → Inglise keel
20 allalaadimist


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