Science 2024, Hlis ntuj nqeg

Pilot-cosmonaut ntawm Lavxias Federation Yury Usachev

Peb txhua tus yuav ua npau suav txog qhov chaw thaum yau, ua npau suav ntawm kev tshawb nrhiav lub Ntiaj Teb, hnov nws, tab sis kom nqa cov kev ntshaw mus dhau xyoo thiab tsis yog txhua tus tuaj yeem ua tiav lawv. Kawg hloov kho: 2023-12-17 05:12

Bipolar system - piav qhia, nta thiab nthuav qhov tseeb

Txoj kev bipolar ntawm lub ntiaj teb yog theem tom ntej hauv kev txhim kho noob neej. Nws piv tau zoo nrog monopolarity hauv feem ntau cov ntsuas. Kawg hloov kho: 2023-12-17 05:12

Technopark yog Keeb kwm ntawm technopark txav

Keeb kwm ntawm cov chaw ua si thev naus laus zis tau pib hauv tsib caug xyoo dhau los. Nws yog lub sijhawm no uas Stanford University, nyob rau hauv lub xeev California (USA), txiav txim siab xauj tawm thaj chaw khoob thiab tsis siv av. Cov ntawv cog lus tau kos npe nrog ntau lub koom haum. Kawg hloov kho: 2023-12-17 05:12

Ntxhais Lub Ntiaj Teb. Tshawb lub ntiaj teb

Lub Ntiaj Teb yog peb lub tsev xiav zoo nkauj nyob hauv lub ntiaj teb hnyav hnyav uas nthuav dav thoob plaws qhov chaw dav dav ntawm peb qhov chaw. Peb lub ntiaj teb yog amazing thiab tshwj xeeb, nws muaj lub hom phiaj tsim tej yam kev mob rau lub hauv paus ntawm lub neej ntawm organic keeb kwm. Lub luag haujlwm tseem ceeb tau ua los ntawm cov tshuaj lom neeg muaj pes tsawg leeg, muaj cov huab cua thiab cov hlau nplaum rau nws cov tsos thiab kev vam meej hauv txhua yam. Kawg hloov kho: 2023-12-17 05:12

Kev sib xyaw ua ke sib txawv thiab nws qhov tseem ceeb ntawm kev hloov pauv

Heredity yog lub peev xwm tseem ceeb tshaj plaws ntawm cov kab mob nyob hauv kev hloov pauv tag nrho lawv cov khoom thiab kev ua haujlwm rau cov tiam tshiab. Thiab lub ntsiab txhais ntawm heredity yog combinative variability, nrog kev pab los ntawm cov kab mob nyob rau hauv endowed nrog purely tib neeg zoo thiab ib tug tshwj xeeb gene ua ke. Yog tsis muaj peev xwm no, cov txheej txheem evolutionary thiab kev xaiv ntuj yuav ua tsis tau. Kawg hloov kho: 2023-12-17 05:12

Cov kab mob propionic acid nyob qhov twg?

Propionic acid cov kab mob, cov khoom uas yuav tau tham hauv qab no, koom ua ke los ntawm genus Propionibacterium. Nws, nyob rau hauv lem, belongs rau tsev neeg Propionibacteriaceae. Cia peb xav txog qhov nthuav dav npaum li cas cov kab mob propionic acid muaj, qhov twg cov kab mob no muaj thiab siv. Kawg hloov kho: 2023-12-17 05:12

Kev teeb tsa hluav taws xob - cov lus zais ntawm cov qauv ntawm lub atom

Txhua yam teeb meem hauv ntiaj teb muaj cov tsev me me - atoms. Thiab kev teeb tsa hluav taws xob ntawm cov qauv txheej txheem ntawm txhua yam khoom tsim nws tus kheej zoo. Kev nkag mus rau hauv cov lus zais ntawm cov qauv nuclear-electronic qauv ntawm lub atom tau muab lub ntiaj teb kev tshawb fawb ib lub zog loj heev kom nrawm rau ntawm txoj kev thorny ntawm kev vam meej. Kawg hloov kho: 2023-12-17 05:12

Protein: nws yog dab tsi thiab lub cev xav tau dab tsi?

Ib tug neeg xav txhua hnub txog yam khoom noj thiab yuav ua li cas thiaj tsim tau lawv cov zaub mov zoo. Hmoov tsis zoo, tsuas yog cov neeg uas muaj teeb meem kev noj qab haus huv loj feem ntau xav txog kev noj zaub mov. Txhua tus paub tias kev noj zaub mov yuav tsum yog cov protein. Cov khoom no yog dab tsi?. Kawg hloov kho: 2023-12-17 05:12

Cov plaub hau yog Ua haujlwm ntawm cov plaub hau hauv paus

Complex metabolic reactions hauv cov nroj tsuag tau piav qhia los ntawm cov qauv tshwj xeeb ntawm lawv lub cev: hauv paus, qia, nplooj, hu ua vegetative organs. Lawv muaj lub luag haujlwm rau cov txheej txheem ntawm photosynthesis, transpiration, osmosis. Hauv daim ntawv no, peb yuav kawm txog cov qauv thiab kev ua haujlwm ntawm cov nroj tsuag xws li cov hauv paus plaub hau. Cov no yog cov qauv tseem ceeb uas txiav txim siab qhov nqus dej thiab ntxhia ntsev los ntawm cov av. Kawg hloov kho: 2023-12-17 05:12

Ua tiav oxidation ntawm qabzib. Glucose oxidation cov tshuaj tiv thaiv

Nyob hauv kab lus no, peb yuav saib seb cov piam thaj li cas oxidized. Carbohydrates yog cov tebchaw ntawm polyhydroxycarbonyl hom, nrog rau lawv cov derivatives. Cov yam ntxwv nta - muaj aldehyde lossis ketone pawg thiab tsawg kawg yog ob pawg hydroxyl. Kawg hloov kho: 2023-12-17 05:12

JSC LII im. Gromova, Zhukovsky, Moscow cheeb tsam

Hnub no peb yuav tham txog LII lawv. Gromov. Peb yuav tham txog lub tsev kawm ntawv no zoo li cas, dhia me ntsis rau hauv nws cov keeb kwm, thiab tseem kawm txog qhov xwm txheej tseem ceeb tshaj plaws. Nyeem txhua yam txog nws hauv kab lus hauv qab no. Kawg hloov kho: 2023-12-17 05:12

Lub hlwb ntawm tus ntses: qauv thiab nta

Muaj ntau hom tsiaj sib txawv hauv qhov xwm txheej. Ib tug ntawm lawv yog ntses. Ntau tus neeg tsis txawm xav tias cov neeg sawv cev ntawm cov tsiaj ntiaj teb no muaj lub hlwb. Nyeem txog nws cov qauv thiab nta hauv kab lus. Kawg hloov kho: 2023-12-17 05:12

Raven Matrix: nws yog dab tsi thiab nws siv qhov twg?

Raven matrix yog dab tsi? Nws ntseeg tias qhov no tsuas yog kev sim kev txawj ntse xwb, tab sis nws puas yog tiag tiag? Nyob rau hauv tsab xov xwm peb yuav tham txog qhov kev xeem thiab nws legendary creator. Kawg hloov kho: 2023-12-17 05:12

Microorganism - lub neej zoo li cas?

Nyob hauv qhov xwm txheej, muaj cov kab mob uas muaj sia nyob uas nws qhov loj me me uas yooj yim pom tsis tau ntawm qhov muag liab qab. Lawv tau pom los ntawm cov kws tshawb fawb nkaus xwb nrog kev pab los ntawm microscopes ntawm kev nthuav dav. Kawg hloov kho: 2023-12-17 05:12

Qhov twg rRNA yog tsim los. Ribosomal ribonucleic acids rRNA: yam ntxwv, qauv thiab piav qhia

Molecular biology cuam tshuam nrog kev kawm txog cov qauv thiab kev ua haujlwm ntawm cov molecules ntawm cov organic tshuaj uas tsim cov cell nyob ntawm cov nroj tsuag, tsiaj txhu thiab tib neeg. Ib qho chaw tshwj xeeb ntawm lawv yog muab rau ib pawg ntawm cov tshuaj hu ua nucleic (nuclear) acids. Kawg hloov kho: 2023-12-17 05:12

Paj hlwb: qauv thiab kev ua haujlwm. Cov yam ntxwv ntawm cov paj hlwb. Hom paj hlwb

Peb hnov ntau zaus txog cov hlab ntsha, peb hais tias cov hlwb tsis rov tsim dua tshiab, ntau zaus peb pom tias peb ua li cas thiaj li ua tiav … Nkag siab txog kev ua ntawm peb lub hlwb, nkag siab tias cov ntaub so ntswg puas yog txheej txheem, qauv thiab ua haujlwm no amazing system, koj tuaj yeem nyeem cov kab lus no. Kawg hloov kho: 2023-12-17 05:12

Mitochondria yog dab tsi? Lawv cov qauv thiab kev ua haujlwm

Amazing zog chaw nres tsheb ntawm tes - lawv yog leej twg? Yuav ua li cas mitochondria tau npaj, lawv tau siv los ua dab tsi thiab qhov phom sij lawv DNA ua li cas - tag nrho cov no hauv peb tsab xov xwm. Kawg hloov kho: 2023-12-17 05:12

Qhov chaw tseem ceeb ntawm cov protein biosynthesis. Cov theem ntawm cov protein biosynthesis

Protein synthesis yog txheej txheem tseem ceeb heev rau txhua lub cell. Lub luag haujlwm ntawm cov proteins muaj ntau haiv neeg; lub neej ntawm txhua yam kab mob nyob ntawm lawv txoj haujlwm zoo. Kab lus piav qhia txog cov ntsiab lus tseem ceeb ntawm cov protein synthesis thiab cov theem ntawm kev txhais lus. Kawg hloov kho: 2023-12-17 05:12

Txoj kev ntawm tib neeg lub cev. Txoj kev tshawb fawb Anatomy

Ib qho kev tshawb fawb qub thiab tseem ceeb tshaj plaws rau tib neeg yog lub cev. Thiab tsis tsuas yog ib qho uas cuam tshuam ncaj qha rau tus neeg. Cov txheej txheem rau kev kawm txog lub cev ntawm cov nroj tsuag thiab tsiaj txhu kuj ua rau nws nkag siab ntau txog cov qauv ntawm lub ntiaj teb. Kawg hloov kho: 2023-12-17 05:12

Kev ua haujlwm ntawm cov leeg nqaij ncig ntawm lub qhov muag thiab cov leeg ncig ntawm lub qhov ncauj

Cov leeg nqaij ntau tshaj plaws nyob ntawm lub ntsej muag. Lawv cov yam ntxwv tseem ceeb ntawm qhov txawv yog tias lawv tsuas muaj ib qho kawg ntawm cov pob txha pob txha, thiab qhov thib ob yog woven rau hauv cov ntaub so ntswg, ua ib qho kev sib txuas ntawm tes. Kawg hloov kho: 2023-12-17 05:12

Dab tsi yog gametophyte (hom, nta, yam ntxwv)

Txhua yam kab mob uas muaj sia nyob mus txog ib lub voj voog ntawm lub neej: los ntawm kev xav (ntev) mus rau kev tuag (kev tuag), thiab cov nroj tsuag tsis muaj kev zam. Lawv qhov txawv feature yog cov txheej txheem ntawm kev yug me nyuam, uas muaj nyob rau hauv alternation ntawm sporophyte thiab gametophyte. Kawg hloov kho: 2023-12-17 05:12

Protein: tertiary qauv. Kev ua txhaum ntawm tertiary qauv ntawm cov protein

Cov qauv tertiary ntawm cov protein yog txoj hauv kev uas cov saw hlau polypeptide tau muab ntim rau hauv qhov chaw peb sab. Qhov no conformation tshwm sim vim yog tsim cov tshuaj bonds ntawm amino acid radicals tej thaj chaw deb ntawm ib leeg. Cov txheej txheem no yog nqa tawm nrog kev koom tes ntawm molecular mechanisms ntawm tes thiab ua lub luag haujlwm loj hauv kev muab cov protein ua haujlwm. Kawg hloov kho: 2023-12-17 05:12

Tshuaj lom neeg daim ntawv cog lus: txhais, hom, kev faib tawm thiab cov yam ntxwv ntawm lub ntsiab lus

Hom tshuaj lom neeg hauv cov khoom txiav txim siab nws cov qauv thiab cov khoom. Los ntawm lawv, nyob rau hauv lem, nyob ntawm nws lub luag hauj lwm nyob rau hauv ib puag ncig thiab muaj peev xwm siv nws nyob rau hauv ntau yam ntawm tib neeg lub neej, los ntawm kev ua teb mus rau qhov chaw tshawb fawb. Kawg hloov kho: 2023-12-17 05:12

Topography - yog dab tsi? Topography hauv anatomy

Anatomical topography yog ib feem ntawm lub cev nqaij daim tawv uas kawm txog cov txheej txheem txheej txheem ntawm tib neeg lub cev thaj chaw, qhov chaw ntawm cov kabmob sib raug zoo rau ib leeg, holotopy thiab skeletopy, nrog rau cov ntshav thiab cov qog ntshav thaum lub sijhawm kev loj hlob ntawm lub cev thiab Nyob rau hauv pathology, noj mus rau hauv tus account tag nrho cov hnub nyoog thiab poj niam txiv neej tus yam ntxwv. Tshooj lus ntawm lub cev nqaij daim tawv no tseem ceeb heev rau cov tshuaj, vim nws sawv cev rau lub hauv paus theoretical rau kev phais phais. Kawg hloov kho: 2023-12-17 05:12

Cov protein ntau: txhais, muaj pes tsawg leeg, qauv, qauv, kev ua haujlwm, kev faib tawm thiab cov yam ntxwv. Yuav ua li cas cov proteins yooj yim txawv ntawm cov complex?

Ib qho protein ntau, ntxiv rau cov protein tivthaiv nws tus kheej, muaj ib pab pawg ntxiv ntawm qhov sib txawv (prosthetic). Carbohydrates, lipids, hlau, phosphoric acid residues, nucleic acids ua raws li cov khoom no. Dab tsi yog qhov sib txawv ntawm cov proteins yooj yim thiab cov proteins nyuaj, yam ntawm cov tshuaj no tau muab faib ua dab tsi, thiab lawv cov yam ntxwv yog dab tsi, tsab xov xwm no yuav qhia. Kawg hloov kho: 2023-12-17 05:12

Lub zog yog dab tsi?

Tag nrho cov ntawv tau sau txog ntau hom zog. Ntau tus kws tshawb fawb ua qhov kev sim sib txawv hauv cheeb tsam no. Rau tib neeg, qhov no yog ib qho teeb meem tseem ceeb tshaj plaws. Nrog rau kev txhim kho thev naus laus zis, peb tau dhau los yuav luag tag nrho nyob ntawm cov khoom siv hluav taws xob. Yog li ntawd, ntau tus xav paub seb lub zog yog dab tsi, nws yog dab tsi thiab nws siv li cas. Kawg hloov kho: 2023-12-17 05:12

Fusion txias yog dab tsi? Txias fusion: lub hauv paus ntsiab lus

Cold fusion - yog dab tsi? Myth los yog kev muaj tiag? Qhov kev taw qhia ntawm kev tshawb fawb tau tshwm sim nyob rau hauv lub xyoo pua xeem thiab tseem excites ntau scientific minds. Ntau qhov lus xaiv, lus xaiv, kev xav tau cuam tshuam nrog hom thermonuclear fusion no. Kawg hloov kho: 2023-12-17 05:12

Mstislav Keldysh: biography, tsev neeg, duab

Keldysh Mstislav Vsevolodovich - Soviet kws tshawb fawb hauv kev ua lej thiab tshuab, kws tshaj lij thiab tus thawj tswj hwm ntawm USSR Academy of Sciences. Nws ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm hauv lub tebchaws Soviet. Kawg hloov kho: 2023-12-17 05:12

Gnomon yog qhov yooj yim tshaj plaws sundial

Gnomon yog ib qho cuab yeej siv hnub qub qub uas tso cai rau koj los txiav txim siab qhov siab ntawm lub hnub los ntawm qhov ntev tshaj plaws ntawm tus duab ntxoov ntxoo ntawm nws kab. Xws li peculiar watches tau tsim ib lub sij hawm ntev dhau los, lawv pab txiav txim siab lub sij hawm nyob rau hauv ib hnub tshav ntuj. Lub hnub ntawm no tsuas yog ua lub luag haujlwm tseem ceeb, qhov tseeb dua, tus duab ntxoov ntxoo los ntawm nws. Hauv lwm lo lus, gnomon yog qhov yooj yim tshaj plaws sundial. Kawg hloov kho: 2023-12-17 05:12

Yuav ua li cas agroecosystems txawv ntawm ntuj ecosystems: cov ntsiab lus thiab cov yam ntxwv sib piv

Systems tsim los ntawm txiv neej hu ua agrosystems. Tib neeg muaj peev xwm plos teb, cog ntoo, tab sis txawm peb ua dab tsi, peb ib txwm nyob ib puag ncig thiab yuav nyob ib puag ncig ntawm ntuj. Qhov no yog ib co ntawm nws peculiarity. Yuav ua li cas agroecosystems txawv ntawm ntuj ecosystems? Qhov no tsim nyog saib rau hauv. Kawg hloov kho: 2023-12-17 05:12

Kev ua haujlwm ntawm monocytes: ua rau nce thiab txo qis, qauv thiab ua haujlwm

Thaum peb tau txais cov ntshav suav tag, peb tsis tuaj yeem paub nws yam tsis muaj kws kho mob pab. Lub caij no, qee qhov ntsuas yuav tsum paub kom tsawg kawg me ntsis taw qhia qhov xwm txheej. Ib kem cais nyob rau hauv daim ntawv ntsuam xyuas yog tus naj npawb ntawm monocytes, uas saib xyuas tus neeg mob txoj kev zoo. Piv txwv li, yog tias tom qab mob caj pas, ntau tus lej ntawm monocytes txuas ntxiv mus ntev, ces tus kws kho mob tuaj yeem hais qhia txog kev txhim kho ntawm qhov mob rheumatoid. Kawg hloov kho: 2023-12-17 05:12

Dav hlau thiab axes ntawm tib neeg lub cev. Anatomy

Anatomically, peb lub cev tau muab faib ua cov cheeb tsam saum toj kawg nkaus nrog ntau yam kabmob, cov kab mob neurovascular thiab lwm yam khoom nyob hauv lawv. Hauv tsab xov xwm no, peb yuav xav txog cov dav hlau thiab axes ntawm tib neeg lub cev. Kawg hloov kho: 2023-12-17 05:12

Lub paj hlwb autonomic suav nrog lub paj hlwb kev xav thiab parasympathetic

Lub autonomic paj hlwb muab faib ua sympathetic thiab parasympathetic. Txhua qhov chaw ua haujlwm ua haujlwm uas muaj kev txhawb nqa thiab txhawb nqa kev ua haujlwm ntawm lub cev sab hauv. Kawg hloov kho: 2024-01-18 04:01

Cov iav siv lead ua dej khov thiab dej

Hauv xyoo 1910, tus kws tshawb fawb Asmeskas P. Bridgman thiab tus kws tshawb fawb German G. Tamman tau tshawb pom tias cov dej khov tuaj yeem tsim ntau yam kev hloov pauv polymorphic crystalline. Tam sim no 9 qhov kev hloov kho ntawm cov dej khov tau paub, lawv muaj cov khoom siv lead ua sib txawv, qhov sib txawv thiab cov ntsiab lus melting. Cov dej khov uas peb txhua tus paub zoo yog hu ua "ice I", lwm qhov kev hloov kho ntawm cov dej khov muaj nyob ntawm qhov siab tshaj 2000 atm. Kawg hloov kho: 2023-12-17 05:12

Lanthanides thiab actinides: txoj haujlwm hauv lub sijhawm ua haujlwm

Lanthanides thiab actinides yog ob tsev neeg uas muaj 14 cov tshuaj lom neeg txhua tus, nrog rau cov hlau lawv tus kheej - lanthanum thiab actinium. Lawv cov khoom - ob lub cev thiab tshuaj - yuav raug txiav txim siab los ntawm peb hauv daim ntawv no. Kawg hloov kho: 2023-12-17 05:12

Dicarboxylic acids: piav qhia, tshuaj lom neeg, kev npaj thiab daim ntawv thov

Dicarboxylic acids yog cov khoom uas muaj ob pawg ua haujlwm monovalent carboxyl - COOH, uas txiav txim siab lawv cov kua qaub. Txawm li cas los xij, qhov kev txhais no luv luv. Qhov tseeb, ntau ntxiv tuaj yeem hais txog cov ntsiab lus no, yog li tam sim no nws tsim nyog them nqi rau cov ntsiab lus nthuav dav, muaj txiaj ntsig thiab tseem ceeb ntawm lawv cov khoom siv tshuaj thiab lub cev, cov txheej txheem tsim khoom thiab thaj chaw uas lawv tau pom lawv daim ntawv thov. Kawg hloov kho: 2023-12-17 05:12

Chelated Forms: Txhais, Piv txwv, Daim Ntawv Thov

Chelated cov ntaub ntawv ntawm cov tshuaj sib xyaw: piav qhia, piv txwv, nta. Tau txais cov tshuaj thiab lawv siv hauv kev ua liaj ua teb, kev tsim khoom thiab tshuaj. Cov tshuaj chelate tseem ceeb. Kev cuam tshuam rau tsiaj noj qab haus huv, tib neeg kev noj qab haus huv thiab kev loj hlob ntawm cov nroj tsuag. Kawg hloov kho: 2023-12-17 05:12

Organella yog Functions, structure of organelles

Lub cev yog dab tsi? Lawv zoo li cas? Txhua tus ntawm lawv tau npaj li cas thiab nws ua haujlwm li cas hauv lub cell?. Kawg hloov kho: 2023-12-17 05:12

Cov ntaub ntawv hais txog lub hnub qub. comet txav. npe comet

Qhov chaw yog fraught nrog ntau yam tsis meej. Cov neeg tau ntev tau txaus siab rau cov tub txib saum ntuj. Thaum lub hnub qub poob (shooting hnub qub) tshwm sim, tib neeg xav tau. Dab tsi yog cov tub txib saum ntuj - comets thiab meteorites - tiag tiag?. Kawg hloov kho: 2023-12-17 05:12

Dab tsi yog chronology: txhais. Chronology kawm dab tsi?

Txhua tus xav tias lub sijhawm dhau mus. Cov hnub qub thiab cov ntiaj chaw txav mus rau hauv lub ntiaj teb, ob txhais tes ntawm lub moos monotonously tuav lawv lub suab, peb txhua tus maj mam txav mus rau pem hauv ntej ntawm txoj kev hauv lub sijhawm. Nkag siab txog lawv txoj kev vam khom rau nws, tib neeg tau tuaj nrog ntau txoj hauv kev thiab cov lej uas pab txhawm rau txhim kho thiab suav nws. Ntau yam kev tshawb fawb, xws li lej, physics, chemistry thiab keeb kwm, tsis tuaj yeem ua yam tsis muaj kev tshawb fawb tiag tiag li chronology. Kawg hloov kho: 2023-12-17 05:12