Anthu amatha kudziwa zankhaninkhani wina fungo

Humans can detect one trillion smells
English: Nose diagram.

English: mphuno chithunzi. (Photo ngongole: Wikipedia)

Mphuno ya munthu ikhoza kusiyanitsa osachepera zankhaninkhani wina fungo la mitundu, mamiliyoni kuposa poyamba Akuti, Akatswiri US anati Thursday.

kwa zaka zambiri, Asayansi anavomera kuti anthu angathe kudziwa yekha 10,000 fungo, kuika kununkhiza bwino pansipa mphamvu ya kuona ndi kumva.

“kusanthula wathu akusonyeza kuti chimachititsa anthu chatsankho chija fungo ndi zazikulu kwambiri kuposa aliyense mwachidwi,, anati phunziro co-wolemba Leslie Vosshall, mutu wa University Rockefeller'M Laboratory wa Neurogenetics ndi Khalidwe.

The kafukufuku yapita kwa mphamvu ya mphuno ndi — amene akutsatiridwa ndi thandizo la 400 zolandilira olfactory — analembedwa kuti 1920s ndipo tilibe ndi deta.

Ofufuza akuti maso athu ndi chabe maselo ake atatu amatha kusiyanitsa mitundu mamiliyoni angapo ndipo khutu akhoza kutsala 340,000 phokoso.

“pakuti kununkhiza, Palibe amene anatenga nthawi kuyesa,” Vosshall anati.

Kuti kafukufuku wawo, asayansi pansi 26 ophunzira zosakaniza anapanga ndi 128 mamolekyulu osiyana odorant kuti payekha mwina zimabweretsa udzu, zipatso kapena zosiyanasiyana mankhwala, koma pamodzi mu magulu a ku 30.

“Ife sanafune kuti iwo akhale motsimikizira kuzindikira, motero zosakaniza athu ndithu amangovuta ndi lodabwitsa,” Vosshall anati.

Akatswiri US aona kuti chimachititsa anthu chatsankho chija fungo ndi zazikulu kwambiri kuposa aliyense mwachidwi,

“Tikufuna anthu kulabadira 'apa pali chinthu kwenikweni zovuta - ndingatani kunyamula chinthu china zovuta kukhala osiyana?'”

Ongodzipereka kuyesa mbale zitatu fungo panthawi — awiri amene anali ofanana ndi amene anali osiyana — kuwona ngati iwo akanakhoza kudziwa amene anali outlier, kutsiriza 264 kufananitsa zimenezi.

Ngakhale odzipereka’ luso zosiyanasiyana kwambiri, iwo akanakhoza pafupifupi kuzindikira kusiyana mbale ndi ku 51 peresenti cha zigawo yemweyo, ndi odzipereka ochepa kupeza kusiyana ndi pamene zosakaniza nawo zigawo zambiri.

Akatswiri ndiye extrapolated mmene zofukiza zambiri anthu ambiri akhoza kuona ngati ma n'kotheka wa 128 odorants anali mumtengo, akubwera ndi kafukufuku wawo pafupifupi zankhaninkhani wina.

patsogolo kafukufuku Andreas Keller, za University Rockefeller, anati zilipo pafupifupi ndithu otsika kwambiri kupatsidwa kuti pali zambiri odorants zina zimene kusakaniza mu njira zambirimbiri m'dzikoli weniweni.

Iye anati makolo athu ankadalira kwambiri pa kununkhiza, koma refrigeration ndi chitukuko cha ukhondo sadziwa zofukiza m'dziko masiku ano.

“Izi zikhoza kufotokoza maganizo athu kuti fungo moperewera, poyerekeza kumva ndi masomphenya,” Keller anati.

Iye anawonjezera kuti owongoka kaimidwe, amene anaukitsa anthu’ mphuno kutali pansi kumene zofukiza zambiri zimachokera, Mwinanso achititsa.

Kununkhiza kumagwirizana makhalidwe a anthu ndi ofufuza za anatsindika kuti kuliphunzira akanakhoza kumvetsa mmene ubongo njira zambiri zovuta.

phunziro inafalitsidwa mu magazini Science.

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