295 resultados para anomalous Eu3 5D0->F-7(0) transition
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12C6+36Ar18+,M1M3:,12C6+2025 Gy;M1,M2,,,7.0%17.9%;M3,,
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Aims. We determine branching fractions, cross sections and thermal rate constants for the dissociative recombination of CD3CDOD+ and CH3CH2OH2+ at the low relative kinetic energies encountered in the interstellar medium. Methods. The experiments were carried out by merging an ion and electron beam at the heavy ion storage ring CRYRING, Stockholm, Sweden. Results. Break-up of the CCO structure into three heavy fragments is not found for either of the ions. Instead the CCO structure is retained in 23 +/- 3% of the DR reactions of CD3CDOD+ and 7 +/- 3% in the DR of CH3CH2OH2+, whereas rupture into two heavy fragments occurs in 77 +/- 3% and 93 +/- 3% of the DR events of the respective ions. The measured cross sections were fitted between 1-200 meV yielding the following thermal rate constants and cross-section dependencies on the relative kinetic energy: sigma(E-cm[eV]) = 1.7 +/- 0.3 x 10(-15)(Ecm[eV])(-1.23 +/- 0.02) cm(2) and k(T) = 1.9 +/- 0.4 x 10(-6)(T/300)-0.73 +/- 0.02 cm(3) s(-1) for CH3CH2OH2+ as well as k(T) = 1.1 +/- 0.4 x 10(-6)(T/300)(-0.74 +/- 0.05) cm(3) s(-1) and s(Ecm[eV]) = 9.2 +/- 4 x 10(-16)(Ecm[eV])-1.24 +/- 0.05 cm(2) for CD3CDOD+
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The intestinal bacterial metabolites of ginsenosides are responsible for the main pharmacological activities of ginseng. The purpose of this study was to find whether these metabolites influence hepatic metabolic enzymes and to predict the potential for ginseng-prescription drug interactions. Utilizing the probe reaction of CYP3A activity, testosterone 6beta-hydroxylation, the effects of derivatives of 20(S)-protopanaxadiol and 20(S)-protopanaxatriol families on CYP3A activity in rat liver microsomes were assayed. Our results showed that ginsenosides from the 20(S)-protopanaxadiol and 20(S)-protopanaxatriol family including Rb-1, Rb-2, Rc, Compound-K, Re, and Rg(1), had no inhibitory effect, whereas Rg(2), 20(S)-panaxatriol and 20(S)-protopanaxatriol exhibited competitive inhibitory activity against CVP3A activity in these microsomes with the inhibition constants (K) of 86.4+/-0.8mum, 1.7+/-0.1mum, and 3.2+/-0.2 mum, respectively. This finding demonstrates that differences in their chemical structure might influence the effects of ginsenosides on CYP3A activity and that ginseng-derived products might have potential for significant ginseng-drug interactions.
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ArthrobacterK110 8 , ,K110 8 5 5 ,pH 7 0 ,Co2 + Fe2 + ,Ca2 + K110 8 , 5 ,5 5 K110 8 , ,N
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L (SR) , pGEM 3zf(+)Gluconobactersp .S6 .L ,PCRL pGEM 3zf(+) sr3/E .coli, 5 .0kb . pGEM 3zf(+) sr3/E .coliDNA ,SR .PCRSR ,Pet32a(+) ,AD4 94 (DE3)SR ,SR , . :II(NADPH)SR ;SRpH 7.0 ,pH6 .5 , ; 5 0 ,30 .SDS PAGE ,SRMr 6 5 10 3 ,SRMr 5 3 10 3 ,SR . 13 2 6
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2pHKGABnB5pH6.770BnB53.533.pH62114123pH62pH703KGA236h36h.30
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,Vc .pH 7.0 ,35 2 4h,2 L . ,L .pH/ , ,pH/ 8 40 ,Fe3+ ,Co2 + ,2 ,6 , ,TritonX 10 0Tween 80 . 8 7
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C - 2 - -L - (2 -KGA)V6 , , 0 .8- 1.0 0 .4 - 0 .6 m , , , 2 8 30 ,pH 7.0 7.8,GCmol% 5 3.1% , , 2 -KGA 16SrDNA , 2 -KGAKetogulonigeniumGluconobacterAcetobacter 98.9 99.3%82 83% 81 82 % ,Ketogulonigenium
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(BA-07)BaP,2BaP-4,5--4,5--BaP(cis-BP4,5-dihydrodiol)-7,8--7,8--BaP(cis-BP7,8-dihydrodiol).,.BaP,cis-BP4,5-dihydrodiolcis-BP7,8-dihydrodiol,2(BA07BA-07),.,BaP,(BA-07)(BA-07);,cis-BP4,5-dihydrodiolcis-BP7,8-dihydrodiol;BaP40g/mL,pH7.0,,BaP,cis-BP 4,5-dihydrodiolcis-BP7,8-dihydrodiol..
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,,10.5%22.9%(N)180.3 kgha-1,7.1%13.3%(10.6%)22.1%39.1%(29.9%)25.0%40.7%(35.0%),175 kgha-1(10.75%),125 kgha-1(,),11.9%20.3%(17.3%)12.4%20.4%(17.1%),175 kgha-1(11.50%)(4.19%),175225 kgha-1,7.0%7.5%,7.4%8.3%7.0%8.5%8.1%8.4%,
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1982—2001,:1),,;,7,;1982—2001;1d,7,0.380.55;2);,;3),(Ac),(Ci),(CbCu),;4),;
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( Tilia amurensis) , , , 5 ( Y) ( x) , :Y=e- kx , , K -0 .1 6 8 -0 .1 2 7,-0 .1 0 2 -0 .0 94 5 0 % 4 4 ,5 ,6 7a , , , ,
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16 , ,dz0 , ,dz0 ,d ,z0 , ,d/hz0 /h 0 86 7,0 76 4 4 4 7 10 -2 ,3 5 9 10 -2 ,d/hz0 /h ,dz0 ,
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, . , 1 5 , -0 .391-0 .339-0 .2 5 7-0 .198 -0 .12 5 , , . ,60 % 80 % , . . , . , , .
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( ) , ( ) , 1 997 1 975 , 1 975MSS ,Kappa , 1 975 72 4 3.83hm2 65 1 7.0 8hm2 1 2 5 5 70 .1 6hm2 342 64.80hm2 , , 2 9.0 4 % 3.0 5 %; 2 4 6.45 % 8.6% , , , ,
