1. Mbere ya byose, ese urasobanukiwe icyo urumuri rwa UV ari cyo? Rukora iki?
UV ni ijambo rihinnye rivuga imirasire ya Ultraviolet, cyangwa urumuri rwa ultraviolet, rufite uburebure bw'uburebure bwa nm 100 kugeza 400, ari byo miraba ya electromagnetic hagati ya X-rays n'urumuri rugaragara. Ibi bivuze ko uru rumuri ari urumuri rw'ingufu rwinjira kandi rutanga ubushyuhe ku mubiri.
Kwangirika k'urumuri rw'izuba ku ruhu rw'umuntu ahanini bituruka kuri ultraviolet A (UVA) na ultraviolet B (UVB). UVA ni urwego rw'umuraba muremure, rukora ku gice cy'uruhu cyimbitse, ibikorwa bigenda buhoro, ariko bishobora gutera kwirabura rimwe na rimwe. UVB ni urwego rw'umuraba uri hagati, rukora ku ruhu, bigatuma ruhu rukora vuba. Rushobora gukurura keratinocytes z'uruhu, ku buryo imiyoboro y'amaraso yaguka, yongera amaraso atembera, inyuguti ya mbere iba umutuku, hanyuma igahinduka umukara buhoro buhoro. Muri make rero, UVB ituma "izuba rirushaho gutukura" na UVA igatuma "izuba ryijimye".
Ingaruka: Muri rusange ikoreshwa mu buvuzi mu kuvura indwara z'umweru, bivuze ko binyuze muri uru rumuri rw'imirasire ya ultraviolet, gukora neza kw'akadomo k'umweru munsi y'uruhu bituma enzyme ya tyrosine ikora melanin, uruhu rwera rukamera nk'umukara.
Dushobora kubona ibikoresho byinshi by'umweru bikoreshwa mu gutunganya urumuri rwa UV kuri interineti, dushobora kugerageza gushakisha.
2. Ni uruhe ruhare rw'abakora bimwe mu gukoresha urumuri rwa UV muri imashini isesengura uruhu?
Umucyo wa UV waba wangiza uruhu cyangwa utangiza, hari ibigo bimwe na bimwe biri ku isoko bikoresha urumuri rwa UV ku ruhu ibintu bikoreshwa cyane cyane mu kureba utudomo tw'amabara n'imyenge y'uruhu (ubuso bw'uruhu). Ibi bintu bibiri ni byo bito cyane mu mushinga wo kumenya, kuki? Ibara ry'uruhu riboneka binyuze mu byacu. Imashini Isesengura Uruhu rw'Indorerwamo y'Ubumaji, bashobora kandi kubona aho hantu, kuki bagomba gukenera igikoresho kugira ngo bakibone, nk'ikintuIgikoresho cyo gupima uruhudutekereza ko bifite icyo bivuze kurushaho kubona ibara munsi y'uruhu.
Igihe cyo kohereza ubutumwa: 18 Nzeri 2020
