Ithusi liyinto ephumelela kakhulu yokulwa namagciwane ezindaweni.
Sekuyizinkulungwane zeminyaka, kudala ngaphambi kokuba bazi ngamagciwane noma amagciwane, abantu bebelokhu bazi ngamandla okubulala amagciwane ethusi.
Ukusetshenziswa kokuqala okuqoshiwe kwethusi njenge-ejenti yokubulala ukutheleleka kuvela ku-Papyrus kaSmith, incwadi yezokwelapha endala kunazo zonke emlandweni.
Kusukela ngo-1600 BC, amaShayina ayesebenzisa izinhlamvu zemali zethusi njengemithi yokwelapha ubuhlungu benhliziyo nesisu kanye nezifo zesinye.
Futhi amandla ethusi ahlala isikhathi eside. Ithimba likaKeevil lihlole izindonga ezindala eGrand Central Terminal eNew York City eminyakeni embalwa edlule. "Ithusi lisasebenza njengoba nje lenza ngosuku elafakwa ngalo eminyakeni engaphezu kweyikhulu edlule," usho kanje. "Le nto ihlala isikhathi eside futhi umphumela wokulwa namagciwane awupheli."
Isebenza kanjani ngempela?
Ukwakheka kwe-athomu ethile ye-Copper kuyinika amandla okubulala engeziwe. I-Copper ine-electron yamahhala egobolondweni layo langaphandle le-orbital lama-electron elihlanganyela kalula ekwehliseni i-oxidation (okwenza futhi insimbi ibe ngumqhubi omuhle).
Uma igciwane liwela phezu kwethusi, ama-ion aqhumisa igciwane njengokuhlasela kwemicibisholo, avimbele ukuphefumula kwamaseli nokubhoboza imigodi kulwelwesi lwamaseli noma uqweqwe lwamagciwane futhi adale ama-free radicals asheshisa ukubulawa, ikakhulukazi ezindaweni ezomile. Okubaluleke kakhulu, ama-ion afuna futhi abhubhise i-DNA ne-RNA ngaphakathi kwebhaktheriya noma igciwane, avimbele ukuguqulwa kwezakhi zofuzo okudala ama-superbugs angamelani nemithi.
Ingabe i-COVID-19 ingasinda ezindaweni zethusi?
Ucwaningo olusha luthole ukuthi i-SARS-CoV-2, igciwane elibangela ubhubhane lwe-coronavirus, alisatheleleki ngethusi zingakapheli amahora ama-4, kanti lingaphila ezindaweni zepulasitiki amahora angama-72.
Ithusi linezakhiwo zokulwa namagciwane, okusho ukuthi lingabulala amagciwane anjengebhaktheriya namagciwane. Kodwa-ke, igciwane kufanele lithintane nethusi ukuze libulawe. Lokhu kubizwa ngokuthi "ukubulala ngokuxhumana."
Ukusetshenziswa kwethusi elilwa namagciwane:
Enye yezindlela eziyinhloko zokusebenzisa ithusi isezibhedlela. Izindawo ezinamagciwane kakhulu egumbini lesibhedlela - izinsimbi zokulala, izinkinobho zokushaya ucingo, izingalo zesihlalo, itafula letreyi, okokufaka idatha, kanye nenduku ye-IV - bese zithathelwa indawo yizingxenye zethusi.
Uma kuqhathaniswa namakamelo enziwe ngezinto zendabuko, kube nokwehla okungu-83% komthwalo wamagciwane ezindaweni ezisemakamelweni anezingxenye zethusi. Ngaphezu kwalokho, amazinga okutheleleka kweziguli ancishiswe ngo-58%.
Izinto zethusi zingaba usizo futhi njengezindawo zokulwa namagciwane ezikoleni, ezimbonini zokudla, emahhovisi emahhotela, ezindaweni zokudlela, emabhange njalo njalo.
Isikhathi sokuthunyelwe: Julayi-08-2021