Kune zvipukisi zvesirivha zvese mumhuri imwe neimwe. Zvavari uye chii chavo, tinotaurira munyaya ino.
Yakareru yesirivha yesirivha mateti
MumaTsarist nguva, vanhu vakanaka chete (vatungamiri, vatengesi) vaigona kutenga zvigori zvesirivha. Yaiva rudzi rwechiratidzo chekugara kwavo zvakanaka. Vakanga vakashongedzwa zvakanaka nemifananidzo kana mapikicha pamagumo emubati, vaiwanzosangana nematombo uye vakafukidzwa nesameri. Zvizhinji zvezvipfeko kubva kune sirivha, izvo zvakasara kusvika panguva yedu, zvinotangira kusvika kuma1900 nekutanga kwemazana makumi maviri. Munguva iyi, nhamba huru yei yakabudiswa, asi kuedzwa kwavari kwaiva 84 *.
Munguva yeSoviet, zvakare, yakagadzirwa nesirivha. Vaiwanzoshandira tafura yezororo dzemhuri. Chimwe chezviyo zvesirivha, chakazara mubhokisi revelvet, chaifungidzirwa sechipo chakanaka, asi chakanga chisisiri chechigoni. Kazhinji kacho kazhinji sirivha yetipu yaive 875 samples.
Chinangwa chechipiri chekucheka kubva kune sirivha ndechekusapiswa kwemvura, nokuti ions vanopa rubatsiro kuchengetedza utsvina uye kutsva kwemvura. Izvi zvaiwanzoshandiswa mumamiriro ezvinhu apo zvaive zvakakodzera kupa nguva refu yekuchengetedza. Mukuwedzera, iyo mivirikiti yesimbi yakapiwa, iyo inogadzirwa mumagadzirirwo emagetsi, inoderedza kukura kwemasero e-pathogenic, izvo zvinoita kuti kukurumidze kugadzirisa.
Teaspoon yesirivha yevana
Kuvonga kushandiswa kwemishonga inosvibisa sirivheri, tsika yakaonekwa kuti ipe mwana muduku pikisupuni yakadaro nechitarisiko cheino rake rekutanga. Ita izvi zvinofanira kufanana nemadzimai . Zvinotendwa kuti izvi zvichabatsira kuchengetedza mwana muduku paanenge achiziva nevakuru vakuru kubva kubhakitiriya.
Mazuva ano mashekeri esirivha esirivha ane 925 samples, iyo inonzi inoratidzirwa yehukuru hwezvinhu zvakashandiswa.