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111.
Wang CC Abe K Abe K Abe T Adachi I Aihara H Asano Y Aushev T Bakich AM Ban Y Bay A Bedny I Bitenc U Bizjak I Blyth S Bondar A Bozek A Bracko M Browder TE Chang P Chao Y Chen KF Chen WT Cheon BG Choi SK Choi Y Chuvikov A Cole S Dash M Dong LY Dragic J Drutskoy A Eidelman S Eiges V Gershon T Gokhroo G Guo R Haba J Hastings NC Hayasaka K Hayashii H Hazumi M Hokuue T Hoshi Y Hou S Hou WS Hsiung YB Iijima T Imoto A Inami K Ishikawa A Ishino H Itoh K Itoh R Iwasaki H Iwasaki Y Kakuno H Kang JH 《Physical review letters》2005,94(12):121801
We present a time-dependent analysis of CP violation in B0-->rho(+/-)pi(-/+) decays based on a 140 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at KEKB. We obtain the charge asymmetry A(rhopi)(CP)=-0.16+/-0.10(stat)+/-0.02(syst). An unbinned maximum-likelihood fit to the Deltat distributions yields C(rhopi)=0.25+/-0.17(stat)+0.02-0.06(syst), DeltaC(rhopi)=0.38+/-0.18(stat)+0.02-0.04(syst), S(rhopi)=-0.28+/-0.23(stat)+0.10-0.08(syst), and DeltaS(rhopi)=-0.30+/-0.24(stat)+/-0.09(syst). The direct CP violation parameters for B-->rho(+)pi(-) and B-->rho(-)pi(+) decays are A(+-)(rhopi)=-0.02+/-0.16(stat)+0.05-0.02(syst) and A(-+)(rhopi)=-0.53+/-0.29(stat)+0.09-0.04(syst). 相似文献
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114.
H. J. Cole P. Hasse L. Rosenthaler A. St. Pfau J. L. Hastings W. Denis P. B. Dunbar F. D. Dodge G. A. Geiger G. Zelger O. Aschan L. G. Radcliffe E. H. Sharples E. Obermayer A. L. Winton E. M. Bailey H. J. Wichmann C. Kleber W. Frhr. v. Rechenberg E. H. Wirth H. Heller S. Dezani L. E. Goester G. Fromme L. van Itallie W. J. van Eerde Schimmel u. Co. 《Analytical and bioanalytical chemistry》1928,74(10-11):426-432
115.
Leon A. Congdon A. B. Guss F. A. Winter A. Thiel Robert E. Sullivan Hiram S. Lukens und John H. Hastings 《Fresenius' Journal of Analytical Chemistry》1926,69(10):400-401
Ohne Zusammenfassung 相似文献
116.
Concerning triple systems 总被引:1,自引:0,他引:1
E. Hastings Moore 《Mathematische Annalen》1893,43(2-3):271-285
117.
Foote KG Hastings MC Ketten DR Lin YT Reidenberg JS Rye K 《The Journal of the Acoustical Society of America》2012,131(2):1595-1604
Potential physical effects of sonar transmissions on marine mammals were investigated by measuring pressure fields induced in a 119-kg, 211-cm-long, young adult male common dolphin (Delphinus delphis) cadaver. The specimen was instrumented with tourmaline acoustic pressure gauges used as receiving sensors. Gauge implantation near critical tissues was guided by intraoperative, high-resolution, computerized tomography (CT) scanning. Instrumented structures included the melon, nares, ear, thoracic wall, lungs, epaxial muscle, and lower abdomen. The specimen was suspended from a frame equipped with a standard 50.8-mm-diameter spherical transducer used as the acoustic source and additional receiving sensors to monitor the transmitted and external, scattered field. Following immersion, the transducer transmitted pulsed sinusoidal signals at 5, 7, and 10 kHz. Quantitative internal pressure fields are reported for all cases except those in which the gauge failed or no received signal was detected. A full necropsy was performed immediately after the experiment to examine instrumented areas and all major organs. No lesions attributable to acoustic transmissions were found, consistent with the low source level and source-receiver distances. 相似文献
118.
Peralta C Frank C Zaharakis A Cammalleri C Testa M Chaterpaul S Hilaire C Lang D Ravinovitch D Sobel SG Hastings HM 《The journal of physical chemistry. A》2006,110(44):12145-12149
The purpose of this research was to explore the unstirred, ferroin-catalyzed Belousov-Zhabotinsky (BZ) reaction as an experimental model for the response of excitable media to small perturbations (slightly larger than the threshold for excitations). Following Showalter et al. (Showalter, K.; Noyes, R. M.; Turner, H. J.Am. Chem. Soc. 1979, 101, 7463-69), we used a positively biased silver electrode to release silver ions into a BZ reaction mixture, removing bromide ions and causing an excitation if sufficient bromide was removed. We found (1) a scaling region in which the delay before activation increased linearly as the size of the perturbation decreased, qualitatively consistent with but not fully explained by the Oregonator of Field et al. (Field, R. J.; K?r?s, E.; Noyes, R. M. J. Am. Chem. Soc. 1972, 94, 8649-64); (2) evidence for a 10 s oligomerization time scale; and (3) that activations were always delayed until after the end of a pulse of current, with the delay essentially constant for sufficiently long pulses, an effect not seen in simple ODE models but consistent with the anomalously large current apparently required for activation (Showalter, K.; Noyes, R. M. J. Am. Chem. Soc. 1976, 98, 3730-31) and explainable by bromide transport. Overall, the BZ system appeared to be well-suited as an experimental prototype, despite its complexity. 相似文献
119.
John H. Hastings 《Fresenius' Journal of Analytical Chemistry》1925,67(5-6):210
Ohne Zusammenfassung 相似文献
120.
Origins of Large Rate Enhancements in the Nazarov Cyclization Catalyzed by Supramolecular Encapsulation 下载免费PDF全文
Dr. Courtney J. Hastings Prof. Robert G. Bergman Prof. Kenneth N. Raymond 《Chemistry (Weinheim an der Bergstrasse, Germany)》2014,20(14):3966-3973
The self‐assembled supramolecular host [Ga4L6]12? ( 1 ; L=N,N‐bis(2,3‐dihydroxybenzoyl)‐1,5‐diaminonaphthalene) catalyzes the Nazarov cyclization of 1,3‐pentadienols with extremely high levels of efficiency. The catalyzed reaction proceeds at a rate over a million times faster than that of the background reaction, an increase comparable to those observed in some enzymatic systems. A detailed study was conducted to elucidate the reaction mechanism of both the catalyzed and uncatalyzed Nazarov cyclization of pentadienols. Kinetic analysis and 18O‐exchange experiments implicate a mechanism, in which encapsulation, protonation, and water loss from substrate are reversible, followed by irreversible electrocyclization. Although electrocyclization is rate determining in the uncatalyzed reaction, the barrier for water loss and for electrocyclization are nearly equal in the assembly‐catalyzed reaction. Analysis of the energetics of the catalyzed and uncatalyzed reaction revealed that transition‐state stabilization contributes significantly to the dramatically enhanced rate of the catalyzed reaction. 相似文献