Video: Yuav ua li cas hloov pauv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev cia siab thiab Variance . Cov xav tau tus nqi (lossis txhais tau tias) ntawm X, qhov twg X yog qhov sib txawv ntawm qhov sib txawv, yog qhov hnyav nruab nrab ntawm qhov muaj peev xwm uas X tuaj yeem nqa tau, txhua tus nqi raug hnyav raws li qhov tshwm sim tshwm sim. Cov xav tau tus nqi ntawm X feem ntau yog sau ua E(X) lossis m. E(X) = S x P(X = x)
Cov lus nug tseem yog, koj piav qhia qhov txawv li cas?
Kev hloov pauv , hauv biology, txhua qhov sib txawv ntawm cov hlwb, cov kab mob ntawm tus kheej, lossis pab pawg ntawm cov kab mob ntawm ib hom kab mob tshwm sim los ntawm kev sib txawv ntawm caj ces (genotypic kev hloov pauv ) lossis los ntawm kev cuam tshuam ntawm ib puag ncig yam ntawm qhov kev qhia ntawm cov caj ces muaj peev xwm (phenotypic kev hloov pauv ).
Ib yam li ntawd, plaub qhov kev ntsuas ntawm kev hloov pauv yog dab tsi? Muaj plaub qhov kev ntsuas uas nquag siv ntawm kev hloov pauv: lub ntau , interquartile ntau yam , variance, thiab txheem sib txawv . Hauv ob peb nqe lus tom ntej no, peb yuav saib txhua qhov ntawm plaub qhov kev ntsuas ntawm qhov sib txawv ntawm qhov nthuav dav ntxiv.
Tsuas yog li ntawd, peb qhov kev ntsuas ntawm kev hloov pauv yog dab tsi?
Cov kev ntsuas feem ntau ntawm kev hloov pauv yog qhov ntau , lub interquartile ntau (IQR), qhov sib txawv, thiab tus qauv sib txawv.
Dab tsi yog qhov tseem ceeb ntawm kev ntsuas kev hloov pauv?
Qhov tseem ceeb ntawm kev ntsuas ntawm kev hloov pauv - Kev ntsuas ntawm kev hloov pauv yog cov ntaub ntawv txheeb cais uas qhia txog qib uas cov ntaub ntawv tus lej yuav kis tau ntawm tus nqi nruab nrab. Nws tseem hu ua dispersion, scatter, kis. -
Pom zoo:
Vim li cas cov hnub qub dhau los ntawm kev hloov pauv hloov pauv?
Stellar evolution yog tus txheej txheem uas lub hnub qub hloov pauv nyob rau lub sijhawm. Cov hnub qub uas muaj tsawg kawg yog ib nrab ntawm lub hnub tuaj yeem pib tsim lub zog los ntawm kev sib xyaw ntawm helium ntawm lawv cov tub ntxhais, thaum lub hnub qub ntau dua tuaj yeem sib xyaw cov ntsiab lus hnyav dua raws li cov khoom sib xyaw ua ke
Dab tsi yog qhov kev hloov pauv hloov pauv?
Kev hloov pauv, hauv molecular biology, yog hais txog kev hloov pauv hauv deoxyribonucleic acid (DNA), qhov twg ib qho (ob lub nplhaib) purine hloov pauv rau (ib lub nplhaib) pyrimidine, los yog vice versa
Vim li cas tom qab kev hloov pauv kev hloov pauv tseem ceeb?
Kev hloov pauv tom qab kev txhais lus (PTMs) xws li glycosylation thiab phosphorylation ua lub luag haujlwm tseem ceeb ntawm kev ua haujlwm ntawm hemostatic proteins thiab tseem ceeb heev hauv kev teeb tsa kab mob. Xws li theem nrab hloov pauv rau cov proteins hemostatic muaj ntau yam cuam tshuam rau lawv lub peev xwm los cuam tshuam nrog lwm cov proteins
Dab tsi tsim cov roj siab thiab nws hloov pauv li cas nrog kev hloov pauv hauv kinetic zog?
Gas siab yog tshwm sim los ntawm kev sib tsoo ntawm cov khoom siv roj nrog rau sab hauv ntawm lub thawv thaum lawv sib tsoo nrog thiab tawm dag zog rau ntawm phab ntsa ntim. Tom qab ntawd cov roj yog cua sov. Raws li qhov kub ntawm cov roj nce, cov khoom tau nce lub zog kinetic thiab lawv cov nrawm nrawm
Lub zog siv hluav taws xob txuag tau li cas thaum hloov pauv lossis hloov pauv?
Txoj cai lij choj ntawm kev txuag hluav taws xob hais tias rau txhua qhov system, lub zog tsis tuaj yeem tsim lossis rhuav tshem; nws tsuas tuaj yeem hloov ntawm ib daim ntawv mus rau lwm qhov lossis hloov ntawm ib yam khoom mus rau lwm qhov. Mechanical zog los ntawm ob hom: lub zog muaj peev xwm, uas yog khaws cia lub zog, thiab lub zog kinetic, uas yog lub zog ntawm kev txav