Ultraviolet rays

Ultraviolet rays leedahay tamar aad u sarreeya. In this la xidhiidha, in nidaamka of nuugista in qaab dhismeedka kelli iyo qaaradda waxaa lagu isbedel la taaban karo. Tamarta nuugo, kaas oo loo qoondeeyey Ultraviolet rays, waxaa loo isticmaali karaa in jabiyay bonds daciif ah u taagoo protein. Nidaamkan waxaa loo yaqaan photolysis. Its socodka waxaa la socda in la sii daayo walxaha firfircoon sarkhaansan cindiga ultraviolet ruxruxo dhexdhexaad ah.

saamaynta Short-ruxruxo dhirfinaya denaturation ee polymer protein ah, taas oo, laga badiyay ay waxqabad, soo dadajin. Ultraviolet rays saamayn gaar ah ku Britain DNA ah. Under saameynta ay xadgudub ku arkay labanlaabka ah ee DNA iyo qeybinta unug. Isla mar ahaantaana, Ultraviolet rays keeni nabaad oxidative in dhismayaasha protein. Tani waxay keenaysaa in dhimashada unugyada. Laakiin kernels waxyeello awood u leeyihiin in la soo celiyo (dayactirka madow). Tani waa suurto gal sarkhaansan yihiin shucaaca UV muddo dheer la ruxruxo iyo tamarta iftiinka arki karo. In hawlgaladaa, falgalka qaarkood waa qayb.

The gudcur ah, iyo dayactirka photo-Waxyeelo waxaa iska leh category ee reactions ilaaliya-qabsiga. Oo waxay saareen dabiiciga ah ee jidhka bini'aadamka iyo siiyaan ilaalinta saamaynta shucaaca UV.

Dhexdhexaad-saamayn of vitamins caawisaa si aad u bilowdo nidaamka formation. Sayidka, ka Ultraviolet rays waa la gediyay pro-vitamins ku jira maqaarka, galay vitamin D. cabaar kaliya hal-tobnaad millimeter ah, soo-gaadhista bixisaa formation of xaddi weyn oo tamarta marka la barbardhigo kale hirarka electromagnetic of spectrum infrared oo la arki karo.

Photolysis, iyo denaturation waa in lakabka spinous maqaarka. Wada jir ah ula taas waxa laga sameeyaa sii daayo histamine, acetylcholine, amines biogenic. xeryahooda Kuwani cadhaysiinina horumarinta erythema. Waxay dhacdaa 2-8 saacadood ka dib. waxyaabaha daatay protein gacan ka ballaarinta xididdada dhiigga, socdaalka ee unugyada dhiiga cad, barar maqaarka. Dhamaan kuwani waa ifafaale receptors receptors maqaarka cuncun viscera adag leh dareen diidmo dhacdo neuroreflex. alaabta suuska The fido dhiiga, bixinta saamayn humoral. cindiga Ultraviolet for MW kala duwan oo ka cadhaysiinina jawaab aseptic bararka ee maqaarka. By maalintii labaad uu soo gaadho ugu badnaan ay. Maalinteedii toddobaad, maalinteedii sagaalaad ayaa jawaabta bararka maraa, halkii tan muuqataa. shucaaca Short ruxruxo si degdeg ah ka cadhaysiinina erythema, ka tago midabka khafiif ah.

chromogenic badnaan by rays UV muddo dheer la ruxruxo saameeyeen. In melanoblast ku yaalla lakabka asalka ah epidermis, ka tyrosine, iyo alaabta suuska dihydroxyphenylalanine adrenaline sameeyay melanin. Uu (melanin) taagoo Rafaa hortago ingress qoto dheer galay maqaarkaba ah jajabkii ka taagoo protein burburiyey shucaaca UV. Intaa waxaa dheer, u taagoo melanin u nuugo rays infrared iyo spectrum arki karo. Sidaas darteed, maqaarka la ilaaliyo ka kululaado oo gubanaya. Meelaha saamaynta of Ultraviolet rays aad u korodho lymph iyo socodka dhiigga waa hagaagtay cusboonaysiinta cover, kor u ereygu macdantaa collagen. Marka erythema daran dal maqalka dhaca nafaqo oo joogto ah geedi socodka bararka.

gaadhista Ultraviolet waxaa si balaadhan looga isticmaalaa in Qurxin. Sidaas daraaddeed, in solarium waa macaan oo qurux badan tan. Waxa uu isticmaalaa rays muddo dheer la ruxruxo, halka-shucaaca dhexdhexaad-gaaban iyo in lagu qurxiyo beds waa filtarrada.

Waa in la ogaadaa in gaadhista xad-dhaaf ah si ay qorraxda u horseedi karaa gaboobijiyaa, hoos u dhac in barti ee maqaarka. Intaas waxaa sii dheer, waxaa laga yaabaa in la shaqeysiin by formation of xagjirka lacag la'aan in ay gacan kansarka.

Si loo go'aamiyo xadka u dhaxeeya "waxyeelada leh" iyo "faa'iido" isticmaalaa index UV qorraxda. Halbeegga Tani waxay muujinaysaa in heerka shucaaca on Earth.