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81.
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C A Bush 《Journal of the American Chemical Society》1973,95(1):214-219
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85.
Chymotrypsin catalysis. Evidence for a new intermediate. 3 总被引:3,自引:0,他引:3
86.
Brown CN Awes TC Beddo ME Brooks ML Bush JD Carey TA Chang TH Cooper WE Gagliardi CA Garvey GT Geesaman DF Hawker EA He XC Isenhower LD Kaplan DM Kaufman SB Kirk PN Koetke DD Kyle G Lee DM Lee WM Leitch MJ Makins N McGaughey PL Moss JM Mueller BA Nord PM Papavassiliou V Park BK Peng JC Petitt G Reimer PE Sadler ME Sondheim WE Stankus PW Thompson TN Towell RS Tribble RE Vasiliev MA Webb JC Willis JL Wise DK Young GR;FNAL E/NuSea Collaboration 《Physical review letters》2001,86(12):2529-2532
We present a measurement of the polarization observed for bottomonium states produced in p-Cu collisions at square root of s = 38.8 GeV. The angular distribution of the decay dimuons of the Upsilon(1S) state shows no polarization at small values of the fractional longitudinal momentum x(F) and transverse momentum p(T) but significant positive transverse production polarization for either p(T)>1.8 GeV/c or for x(F)>0.35. The Upsilon(2S+3S) (unresolved) states show a large transverse production polarization at all values of x(F) and p(T) measured. These observations challenge NRQCD calculations of the polarization expected in the hadronic production of bottomonium states. 相似文献
87.
Inferences made from analysis of BOLD data regarding neural processes are potentially confounded by multiple competing sources: cardiac and respiratory signals, thermal effects, scanner drift, and motion-induced signal intensity changes. To address this problem, we propose deconvolution filtering, a process of systematically deconvolving and reconvolving the BOLD signal via the hemodynamic response function such that the resultant signal is composed of maximally likely neural and neurovascular signals. To test the validity of this approach, we compared the accuracy of BOLD signal variants (i.e., unfiltered, deconvolution filtered, band-pass filtered, and optimized band-pass filtered BOLD signals) in identifying useful properties of highly confounded, simulated BOLD data: (1) reconstructing the true, unconfounded BOLD signal, (2) correlation with the true, unconfounded BOLD signal, and (3) reconstructing the true functional connectivity of a three-node neural system. We also tested this approach by detecting task activation in BOLD data recorded from healthy adolescent girls (control) during an emotion processing task. 相似文献
88.
The vibrational spectra of 1-chloro-1-hydro-F-ethane,CF3CHFCℓ, and 1-bromo-1-hydro-F-ethane,CF3CHFBr
Infrared and Raman spectra were obtained for the fluorinated ethanes, CF3CHFC? and CF3CHFBr, and their deuterated isotopomers. A vibrational assignment of these molecules is reported. 相似文献
89.
Optical activity of n-pi transitions in polynucleotides 总被引:4,自引:0,他引:4
C A Bush 《The Journal of chemical physics》1970,53(9):3522-3530
90.
A procedure for isolating the real roots of an equation is presented. The technique requires only function values and can be applied readily to complicated transcendental functions. A program implementing the technique is provided. 相似文献