Video: Koj yuav txheeb xyuas cov kua paug li cas?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Thawj qhov kev ntsuam xyuas ntawm phev stains siv lub teeb ci
Lub teeb mercury sab hauv ua rau lub teeb pom kev zoo ntawm UV (320-400 nm) thiab pom lub teeb (400-700 nm) uas kuaj pom cov tshuaj lom neeg cov quav txawm nyob hauv nruab hnub. Wavelengths tuaj yeem xaiv los ntawm txoj haujlwm lim hloov tau.
Tom qab ntawd, ntev npaum li cas tuaj yeem kuaj pom phev ntawm cov khaub ncaws?
Tom qab qhov kev tso tawm ntawm phev , cov khoom ntawm khaub ncaws tau tso cai kom qhuav ntawm chav sov. Thaum qhuav, lub phev -stained cov khoom ntawm khaub ncaws tau khaws cia tus kheej hauv lub hnab ntawv tom qab lub khaub ncaws rau 8 lub hlis; xws li ncua sijhawm hauv cov ntaub ntawv pov thawj rov qab yog feem ntau ntsib hauv ICST rooj plaub [3].
Ntxiv mus, koj yuav paub tau li cas tias koj cov phev zoo? Tam sim no, cia txhais cov ntsiab lus ntawm phev noj qab nyob zoo:
- Qty (ntim). Cov phev suav zoo yog kwv yees li 15 lab lossis ntau dua rau txhua milliliter (mL) ntawm cov phev.
- Kev txav chaw (kev txav chaw). Tsis yog txhua tus phev txav tau zoo lossis txawm tias txhua qhov, tab sis qhov no yog qhov ib txwm muaj.
- Puab (morphology). Cov phev noj qab nyob zoo muaj lub taub hau puag ncig thiab ntev, muaj tails muaj zog.
Cov lus nug tseem yog, koj tuaj yeem qhia tau li cas yog tias cov ntshav tsuas yog ntshav?
Ib qho poob ntawm phenolphthalein reagent tau ntxiv rau cov qauv, thiab tom qab ob peb feeb, ib qho poob ntawm hydrogen peroxide tau siv rau hauv swab. Yog lub swab tig liab sai, nws tau hais rau xeem presumptive positive rau ntshav.
Kuv yuav qhia tau li cas yog tias kuv cov phev muaj menyuam hauv tsev?
Tab sis phev suav tsuas yog ib qho hauv a txiv neej fertility . Kev kuaj phev hauv tsev xav tau a txiv neej mus ejaculate rau hauv a khob khob. Thaum cov txheej txheem sib txawv rau hloov phev thiab ua kom tiav qhov kev xeem , cov txiaj ntsig feem ntau muaj nyob hauv sai li 10 feeb. Cov kev xeem ua haujlwm los ntawm kev txheeb xyuas a protein pom tsuas yog hauv phev.
Pom zoo:
Dab tsi yog qhov sib txawv tseem ceeb ntawm txheeb cais thiab tsis txheeb ze txheeb cais?
Kev ntsuas tus lej, uas qhov kev xav tshwj xeeb tau ua txog cov pej xeem qhov ntsuas tau hu ua kev ntsuas ntsuas. Kev ntsuas tus lej siv hauv qhov xwm txheej uas tsis yog ntsuas qhov sib txawv yog hu ua nonparametric test. Hauv kev ntsuas parametric, qhov ntsuas ntsuas yog ua raws kev faib khoom
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