1. Okokuqala, uyakuqonda ukuthi ukukhanya kwe-UV kuyini? Kwenzenjani?
I-UV iqiniswa imisebe ye-ultraviolet, noma ukukhanya kwe-ultraviolet, ngohlobo lwe-wavelength lungama-400 nm, okungamagagasi e-electromagnetic phakathi kwama-x-ray kanye nokukhanya okubonakalayo. Lokhu kusho ukuthi lokhu kukhanya kungukukhanya kwamandla okungena futhi kukhiqize ukushisa emzimbeni.
Ukulimala kokukhanya kwelanga esikhunjeni somuntu ikakhulukazi kuvela ku-ultraviolet a (UVA) ne-Ultraviolet B (UVB). UVa ungowamagagasi amade, asebenza engxenyeni ejulile yesikhumba, isenzo siyahamba kancane, kepha kungadala ukubala okubangelwa yisikhathi esisodwa. I-UVB ingeyamagagasi aphakathi, esebenza ebusweni besikhumba, umphumela osheshayo. Kungavusa ama-keratinocys wesikhumba, ukuze imithambo yegazi igcwale, yandise ukuhamba kwegazi, okuqala kuzoba bomvu, bese kuphenduka nsundu kancane kancane. Ngakho-ke, ngamafuphi, i-UVB iholela "ehlengiseni ilanga" kanti u-Uva uholela ku- "abamnyama ilanga".
Umphumela: Ngokuvamile isetshenziswa kwezokwelapha ekwelapheni ubuhlanya obumhlophe, okusho ukuthi ngokuvezwa okukhanyayo kwe-ultraviolet, ukusebenza okuqondile kwendawo emhlophe ngaphansi kwesikhumba se-tyrosine enzyme kukhuthaza ukukhiqizwa kwe-melanin, isikhumba esimhlophe sibe mnyama.
Singathola okuningi okukhanyayo kwe-UV ukwelashwa kwamathuluzi amhlophe amhlophe kwi-Intanethi, singazama ukusesha.
2. Yini iqhaza labakhiqizi abathile ekusebenziseni ukukhanya kwe-UV umshini wokuhlaziywa kwesikhumba?
Ukukhanya kwe-UV noma cha ukulimaza isikhumba, amabhizinisi athile emakethe asebenzisa ukukhanya kwe-UV ezintweni ezihlotshiswe ngesikhumba asetshenziselwa ukubheka izindawo zemibala nama-pores (indawo yesikhumba) Lezi zinto ezi-2 zingukuqukethwe kwezobuchwepheshe okuncane, ngani? Indawo yombala yesikhumba ingatholakala ngezethu Umshini wokuhlaziya isikhumba womlingo, bangathola nendawo, kungani kufanele badinge ithuluzi lokuthola, njengeIsikhumba Analyzer divayisiSicabanga ukuthi kunenjongo ngokwengeziwe ukubona indawo yombala ngaphansi kwe-derm.
Isikhathi sePosi: Sep-18-2020
