Los piav qhia yooj yim, "grounding" txhais tau hais tias txoj kev tsis tshua muaj hluav taws xob tau tsim rau hluav taws xob mus rau hauv av. Yog tias muaj hluav taws xob hluav taws xob lossis hluav taws xob luv luv thaum koj siv cov khoom siv, muaj lub hauv paus hauv av los hloov cov tam sim no rau hauv lub ntiaj teb yuav tiv thaiv koj ntawm hluav taws xob poob siab
DIY CO2 tuaj yeem kav 4-6 lub lis piam (lossis ntau dua) yog tias ua tiav. Daim ntawv qhia ntev ntev yuav pib qeeb me ntsis thiab tsim kom muaj ntau lawm nyob rau ob peb hnub. Txawm li cas los xij, koj yuav tsum pom CO2 npuas hauv ob peb teev nrog txhua qhov sib xyaw
Kev sib xyaw ua ke yog qhov ntsuas ntawm thaj chaw ncov ntawm NMR spectrum. Nws sib haum mus rau tus nqi ntawm lub zog absorbed los yog tso tawm los ntawm tag nrho cov nuclei koom nyob rau hauv tshuaj hloov nyob rau hauv lub nuclear spin flip txheej txheem. Nws yog siv los txiav txim qhov piv ntawm hydrogens uas sib haum rau lub teeb liab
Teb: Cov pa atom yuav tsum muaj sp2 lossis sp hybridization, vim nws xav tau p orbital los koom rau hauv C-O π daim ntawv cog lus. Cov pa atom no muaj peb qhov txuas (cov pa roj carbon thiab ob leeg ib leeg), yog li peb siv sp2 hybridization
Yog li txhawm rau qhib tus dab gauntlet, Xauv lub chamber ntawm lub sijhawm, los ntawm kev yuav tus tswv lub cim los ntawm lub khw zais cia, tom qab ntawd nyem rau ntawm thaj chaw hauv qab 'los sai sai' hauv cov npe qib. Xauv lub hauv siab koj tuaj yeem qhib los ntawm kev qhib 50 lub hauv siab hauv chav khoom muaj nqis. Ua kom tiav cov chaos gauntlet
15 Cov Khoom Plig Zoo Tshaj Plaws rau Cov Me Nyuam 5 Xyoos, Raws li Cov Menyuam Yaus thiab Cov Niam Txiv Cov Kws Paub GH Toy Award Winner. Mibro. Tsev Khoom Ua Si. Fort Kit. 3 Stunt Planes Teeb. Stomp Rocket. 4 Untamed Raptor los ntawm Fingerlings. WowWee. 5 Criss Cross Crash Track Set. Mattel. Glow-In-the-Dark Toy. Educational Toy for Kids. 8 Orbmolecules Dragasaur
Qhov ua haujlwm y = x2 lossis f (x) = x2 yog qhov ua haujlwm plaub, thiab yog tus niam txiv daim duab rau tag nrho lwm cov haujlwm plaub. Lub shortcut rau graphing qhov muaj nuj nqi f(x) = x2 yog pib ntawm lub point (0, 0) (lub hauv paus chiv keeb) thiab kos lub point, hu ua lub vertex. Nco ntsoov tias lub ntsiab lus (0, 0) yog lub vertex ntawm niam txiv txoj haujlwm nkaus xwb
Tag nrho cov tebchaw yog molecules, tab sis tsis yog tag nrho cov molecules yog cov tebchaw. Hydrogen gas (H2) yog ib qho molecule, tab sis tsis yog ib qho kev sib xyaw vim nws tsuas yog ua los ntawm ib lub ntsiab lus xwb. Dej (H2O) tuaj yeem hu ua molecule lossis ib qho sib xyaw vim nws yog tsim los ntawm hydrogen (H) thiab oxygen (O) atoms
Intermolecular rog (IMF) yog cov rog uas sib haum xeeb ntawm cov molecules, nrog rau cov rog ntawm kev nyiam lossis kev tawm tsam uas ua rau ntawm cov molecules thiab lwm yam ntawm cov khoom nyob sib ze, piv txwv li. atoms los yog ions. Ob pawg ntawm cov quab yuam yog qhov tseem ceeb ntawm cov quab yuam uas nquag siv hauv molecular mechanics
Glacial deposition yog qhov kev daws teeb meem ntawm cov sediments uas tshuav tom qab los ntawm cov glacier txav. Thaum cov glaciers txav hla av, lawv khaws sediments thiab pob zeb. Qhov sib tov ntawm unsorted sediment deposits nqa los ntawm lub glacier yog hu ua glacial till. Cov pob zeb uas tau tso rau ntawm cov npoo ntawm cov dej khov yav dhau los yog hu ua moraines
Cov kab mob hauv paus muaj txiaj ntsig txhawb cov nroj tsuag kev loj hlob thiab muab kev tiv thaiv los ntawm cov kab mob. Lawv feem ntau yog rhizobacteria uas yog Proteobacteria thiab Firmicutes, nrog ntau yam piv txwv los ntawm Pseudomonas thiab Bacillus genera. Rhizobium hom colonize legume keeb kwm tsim cov qauv nodule
Lub ntsiab lus ntawm geography. 1: Kev tshawb fawb uas cuam tshuam nrog kev piav qhia, kev faib tawm, thiab kev sib cuam tshuam ntawm ntau haiv neeg lub cev, lom neeg, thiab kab lis kev cai ntawm lub ntiaj teb nto. 2: geographic nta ntawm ib cheeb tsam
Ib qho nonelectrolyte yog ib yam khoom uas tsis muaj nyob hauv daim ntawv ionic hauv cov kua dej. Nonelectrolytes zoo li tsis zoo hluav taws xob conductors thiab tsis nkag mus rau hauv ions thaum yaj los yog yaj. Cov kev daws teeb meem ntawm nonelectrolytes tsis ua hluav taws xob
Masson's trichrome yog peb-xim staining raws tu qauv siv hauv histology. Nws yog siv los stain lub nuclei. Tshuaj A, tseem hu ua plasma stain, muaj acid fuchsin, Xylidine Ponceau, glacial acetic acid, thiab dej distilled. Lwm cov kua qaub liab tuaj yeem siv tau, piv txwv li. Biebrich scarlet nyob rau hauv Lillie's trichrome
Nws yog 'niam txiv' ntawm qee qhov quadrilaterals, uas tau txais los ntawm kev ntxiv kev txwv ntawm ntau yam: Ib lub duab plaub yog ib qho parallelogram tab sis nrog tag nrho plaub lub kaum sab hauv kho ntawm 90 ° A rhombus yog ib qho parallelogram tab sis nrog tag nrho plaub sab sib npaug ntawm qhov ntev
Dab tsi yog ob lub luag haujlwm ua lub nplhaib lub hli ua si hauv qhov xwm txheej ntawm lub nplhaib planetary? Lawv siv gravitational rub ntawm cov nplhaib los ntawm kev hloov lawv cov orbits thiab lawv kuj cheb cov nplhaib thiab tom qab eject lawv
Noble Gases Lawv yog helium, neon, argon, krypton, xenon, thiab radon. Lawv ib zaug hu ua inert gases vim lawv xav tias yog inert kiag li - tsis tuaj yeem tsim cov tebchaw. Qhov no yog ib qho kev ntseeg tsim nyog vim hais tias cov pa roj carbon monoxide muaj qhov ua tiav octet, ua rau lawv ruaj khov thiab tsis zoo li nce lossis poob ib qho hluav taws xob
Cov Khoom Ntawm Lub Neej. Txhua yam kabmob muaj sia muaj ntau yam tseem ceeb lossis kev ua haujlwm: kev txiav txim, rhiab heev los teb rau ib puag ncig, kev tsim tawm, kev loj hlob thiab kev loj hlob, kev tswj hwm, homeostasis, thiab kev ua lub zog. Thaum saib ua ke, cov yam ntxwv no pab txhais lub neej
Nws yog tseeb los ntawm scatterplot tias y txo qis li x nce. Peb hais tias muaj kev sib raug zoo tsis zoo nyob nruab nrab ntawm qhov sib txawv x thiab y. Xav txog cov nram qab no scatterplot: Peb saib tias y nce li x nce, thiab cov ntsiab lus tsis nyob ntawm txoj kab ncaj nraim
Galileo tau raug yuam kom tig nws tus kheej mus rau Lub Chaw Haujlwm Dawb Huv kom pib sim rau kev ntseeg tias lub ntiaj teb tig mus ncig lub hnub, uas tau suav tias yog kev ntseeg los ntawm lub Koom Txoos Catholic. Kev coj ua qauv tau thov kom tus neeg raug foob raug kaw thiab cais tawm thaum lub sijhawm sim
Piav seb qhov kev xaiv ntuj tuaj yeem ua rau cov hom tshiab tsim (speciation) Nyob rau hauv ib pawg gene ntawm cov pejxeem, muaj kev hloov caj ces, vim kev hloov pauv. Qhov no ua rau phenotypic variation. Qhov no txhais tau hais tias ob haiv neeg tam sim no yog ob hom sib cais, thiab qhov tshwj xeeb tau tshwm sim
Hauv kev txheeb xyuas RFLP, cov qauv DNA tau zom rau hauv cov khoom tawg los ntawm ib lossis ntau qhov kev txwv enzymes, thiab cov txiaj ntsig txwv tsis pub dhau los ntawm gel electrophoresis raws li lawv qhov loj me
Ntsuas qhov nruab nrab hauv PivotTable Nyem lub xub nqes ib sab ntawm lo lus PivotTable ntawm sab laug ntawm PivotTable toolbar. Xaiv cov qauv | Suav teb. Hauv Lub Npe Lub Npe, sau lub npe rau koj daim teb tshiab. Hauv lub thawv Formula, sau cov qauv uas koj xav tau siv rau koj qhov hnyav nruab nrab, xws li =WeightedValue/Weight. Nyem OK
Xerocoles, yuav tsum tau taug kev mus ntev rau zaub mov thiab dej, feem ntau yoog rau kev ceev, thiab muaj cov ceg ntev ntev, taw uas tiv thaiv lawv los ntawm kev poob rau hauv cov xuab zeb, thiab tag nrho cov slender hauv daim ntawv. Raws li muaj me ntsis npog los tiv thaiv lawv los ntawm cov tsiaj nyeg, cov tsiaj suab puam kuj siv ceev raws li kev tiv thaiv mechanism
Cov thawv ntim tshuaj yuav tsum muab kaw nrog lub hau kaw kom zoo. Cov khoom siv hluav taws xob thiab hluav taws xob hluav taws xob yuav tsum tau muab tso rau hauv cov khoom siv hluav taws xob tau pom zoo thiab khaws cia kom deb ntawm txhua qhov hluav taws xob, oxidizers, lossis corrosives
Txhua yam kab mob, tsis hais lawv qhov loj me, lawv hom, lossis lawv nyob qhov twg, yuav tsum muaj kev cuam tshuam nrog lwm cov kab mob hauv lawv cov 'neighborhood' thiab nrog lawv ib puag ncig kom muaj sia nyob. Ecology yog kev tshawb fawb txog kev sib cuam tshuam ntawm cov kab mob thiab lawv ib puag ncig
Daim phiaj yog ib lub network ntawm cov kab sib npaug ntawm kab rov tav thiab ntsug siv los txheeb xyuas qhov chaw ntawm daim ntawv qhia. Piv txwv li, koj tuaj yeem tso ib daim phiaj uas faib ib daim ntawv qhia rau hauv cov kab thiab kab uas tau teev tseg los ntawm kev xaiv hom kab sib chaws siv
Lub zog dissociation zog los yog, ntau dua, homolytic bond dissociation zog (cim: BDE) ntawm acovalent daim ntawv cog lus yog lub zog yuav tsum tau ua txhaum lub bond homolytically (saib homolysis) raws li tus qauv. Qhov siab dua qhov kev sib raug zoo ntawm lub zog, qhov kev ruaj khov dua
Cov pa roj carbon monoxide piav qhia txog txoj hauv kev uas cov pa roj carbon txav ntawm lub ntiaj teb biosphere, hydrosphere, cua, thiab geosphere. Nws yog ib qho tseem ceeb rau ob peb lub laj thawj: Cov pa roj carbon monoxide yog qhov tseem ceeb rau tag nrho lub neej, yog li kev nkag siab yuav ua li cas nws txav tau pab peb kom nkag siab txog cov txheej txheem lom neeg thiab cov yam ntxwv uas cuam tshuam rau lawv
Geographers siv tus qauv gravity los kwv yees tus nqi ntawm kev sib cuam tshuam ntawm ob qho chaw. Yooj yim hais, qhov ntau dua cov pej xeem ntawm ob qho chaw, qhov sib cuam tshuam ntawm lawv ntau dua
Nws tshwm sim thaum qhov sib npaug ntawm lub zog rub (Fd) thiab qhov buoyancy sib npaug rau qhov downwardforce ntawm lub ntiajteb txawj nqus (FG) ua rau ntawm qhov khoom. Influid dynamics, ib yam khoom yog txav ntawm nws lub davhlau ya nyob twg tshaj tawm yog tias nws qhov ceev tsis tu ncua vim qhov txwv quab yuam los ntawm cov kua los ntawm qhov nws txav mus
1-Dimensional daws teeb meem Cov kauj ruam Sau txhua qhov ntau qhov teeb meem muab rau koj (qhov pib thiab qhov kawg, qhov pib thiab qhov kawg tshaj tawm, nrawm, sijhawm, thiab lwm yam) Sau rau qhov ntau npaum li cas koj tab tom nrhiav. Nrhiav qhov sib npaug kinematic (lossis qee zaum ob qhov sib npaug) los txheeb xyuas cov khoom no. daws cov algebra
Ib qho me me molecule (los yog metabolite) yog ib qho tsis tshua muaj molecular hnyav organic compound, feem ntau koom nrog hauv cov txheej txheem lom neeg raws li cov khoom siv substrate lossis cov khoom. Qee qhov piv txwv ntawm cov me me muaj xws li: qab zib, lipids, amino acids, fatty acids, phenolic compounds, alkaloids thiab ntau ntxiv (Daim duab 2)
Feem ntau cov tsunamis tsawg dua 10 feet siab thaum lawv tsoo av, tab sis lawv tuaj yeem ncav cuag ntau dua 100 feet siab. Thaum muaj tsunami tuaj txog ntawm ntug dej, thaj chaw tsawg dua 25 feet saum hiav txwv theem thiab hauv ib mais ntawm hiav txwv yuav nyob rau hauv qhov txaus ntshai tshaj plaws. Txawm li cas los xij, tsunami tuaj yeem nce mus txog 10 mais hauv av
Nws xav tau ib qho chaw nrog lub hnub tag nrho, tab sis nws yuav zam tau ntau yam av thiab ntsev raws ntug dej hiav txwv. Raws li ib tug suab puam xibtes, ntawm chav kawm, nws yuav zam drought zoo. Dej koj xib teg kom txog rau thaum nws tsim thiab tom qab ntawd tsuas yog dej qee zaus, tab sis tob, tshwj xeeb tshaj yog thaum lub caij qhuav heev
Ntau qhov av qeeg uas tshwm sim hauv Yosemite yog tshwm sim los ntawm cov pob zeb tawg hauv cov pob zeb hauv qab peb uas yog ib feem ntawm cov txheej txheem ntawm kev tsim cov roob. Ib txhia yog enigmatic ntau. Ib cheeb tsam, ze ntawm Clark Range mus rau sab qab teb sab hnub tuaj ntawm Hav, feem ntau muaj av qeeg tob li 30 km (kwv yees li 18 mais) hauv qab dej hiav txwv
Daim duab daim kab xev yog ib qho qauv pom uas zoo li ib ntu ntawm daim kab xev thiab yog siv los sawv cev tus lej kev sib raug zoo thiab lo lus teeb meem. Siv txoj kev no, cov tub ntxhais kawm kos duab thiab sau cov kab plaub fab los piav qhia qhov ntau hauv qhov teeb meem
Boltzmann equation Microstates yog ib lo lus siv los piav txog tus naj npawb ntawm qhov sib txawv ntawm qhov kev npaj ntawm molecular txoj hauj lwm thiab lub zog kinetic ntawm ib lub xeev thermodynamic. Cov txheej txheem uas ua rau muaj qhov nce ntawm cov microstates yog li ua kom cov entropy nce
Cov txheej txheem ntawm kev yug me nyuam asexual sib txawv heev ntawm ntau hom tsiaj. Spores. Qee cov protozoans thiab ntau cov kab mob, cov nroj tsuag thiab cov fungi reproduces ntawm spores. Fission. Prokaryotes thiab qee cov protozoa rov ua dua ntawm binary fission. Kev cog qoob loo. Paj tawg. Fragmentation
Qhov no txhais tau hais tias, es tsis yog melting ntawm ib qhov tseeb kub, qab zib tuaj yeem ua kua ntawm qhov kub sib txawv nyob ntawm qhov cua sov. Yog tias koj sov cov suab thaj sai sai, siv cov cua kub heev, nws yuav yaj ntawm qhov kub siab tshaj qhov nws xav tau yog tias koj sov nws maj mam, siv cov cua sov tsawg