Video: Qhov kev hloov pauv txhais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Rotational txav . Cov kev taw qhia ntawm ib lub cev nruj uas yuav siv qhov chaw nyob rau hauv xws li ib txoj kev uas tag nrho nws cov hais tsiv nyob rau hauv lub voj voog ntawm ib tug axis nrog ib tug ntau angular tshaj tawm; aj, cov kev sib hloov ntawm ib tug hais txog ib qho chaw ruaj khov hauv qhov chaw.
Piv txwv li, qhov piv txwv rotational motion yog dab tsi?
Rotational txav yog hom kev taw qhia uas lub cev ua raws txoj kev nkhaus. Rau piv txwv , lub log ntawm lub tsheb lossis tsheb ciav hlau yog nyob rau hauv tas li rotational zog . SIB NTAUS NTAWM LINEAR THIAB ROTATIONAL MOTION . Nyob rau hauv ib tug linear kev taw qhia , lub cev ua raws txoj kev ncaj.
Kuj Paub, Dab tsi yog qhov txawv ntawm qhov kev sib hloov thiab lub voj voog ncig? Lub ntsiab qhov sib txawv ntawm cov hom no kev taw qhia yog tias ncig ncig yog ib rooj plaub tshwj xeeb ntawm rotational zog , qhov kev ncua deb nruab nrab lub cev qhov chaw ntawm huab hwm coj thiab lub axis ntawm kev sib hloov nyob ruaj. Rotational txav yog nyob ib ncig ntawm lub tswv yim ntawm kev sib hloov ntawm ib lub cev txog nws qhov nruab nrab ntawm qhov loj.
Kuj tseem yuav paub, dab tsi yog qhov ua rau kev sib hloov txav?
1 Teb. Aritra G. Thaum lub torque ( kev hloov analogue ntawm quab yuam) yog siv rau lub cev (system ntawm hais) txog ib tug axis, nws muab ib tug twist thiab qhov no ua rau rotational motion . Qhov no tsuas yog piv rau rooj plaub ntawm kev txhais lus kev taw qhia qhov twg yog lub zog ua rau.
Dab tsi yog qhov piv txwv zoo tshaj plaws ntawm kev hloov pauv?
Lub ntiaj teb rotating txog nws axis. Ib sab saum toj, zoo li ib qho hauv Inception, spinning txog nws axis. Lub nplawm, nqus hauv cov nkoj tsis muaj hmoo uas hla nws txoj kev.
Pom zoo:
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 yog qhov txawv ntawm ib puag ncig kev hloov pauv thiab kev hloov pauv qub txeeg qub teg?
Qhov sib txawv ntawm cov yam ntxwv ntawm cov tib neeg ntawm tib hom yog hu ua variation. Qhov no yog inherited variation. Qee qhov kev hloov pauv yog qhov tshwm sim ntawm qhov sib txawv ntawm ib puag ncig, lossis ib tus neeg ua dab tsi. Qhov no yog hu ua environmental variation
Thaum ib qho kev sib cais ua rau muaj kev hloov pauv hloov pauv ntawm lub ntiaj teb nce ntxiv?
Txij li thaum lub kaw lus raug cais tawm, tsis muaj cua sov tuaj yeem khiav tawm (tus txheej txheem yog li adiabatic), yog li thaum lub zog ntws tawm hauv lub cev, qhov entropy ntawm qhov system nce, piv txwv li Δ Ssys> 0. Yog li ntawd, lub entropy ntawm lub system yuav tsum tau nce rau ib tug spontaneous txheej txheem nyob rau hauv no cais system
Peb qhov laj thawj tseem ceeb ntawm kev hloov pauv hloov pauv yog dab tsi?
Allele frequencies nyob rau hauv ib tug pej xeem yuav hloov vim plaub lub hauv paus zog ntawm evolution: Natural Selection, Genetic Drift, Mutations thiab Gene Flow. Kev hloov pauv yog qhov kawg ntawm cov alleles tshiab hauv cov noob caj noob ces. Ob ntawm cov txheej txheem tseem ceeb tshaj plaws ntawm kev hloov pauv hloov pauv yog: Natural Selection thiab Genetic Drift