نتایج جستجو برای: translocating atpases
تعداد نتایج: 9536 فیلتر نتایج به سال:
A pair of bpe-H(+) ligands in a zwitter-ionic complex undergoes photochemical cycloaddition quantitatively accompanied by proton transfer and the cyclobutane ring isomerizes slowly in solution to two more isomers, catalyzed by CF(3)CO(2)H acid.
The proton-nucleon cross section ratio R = Br(Υ → l+l−) · dσ(Υ)/dy|y=0 /σ(J/ψ) has been measured with the HERA-B spectrometer in fixed-target proton-nucleus collisions at 920 GeV proton beam energy corresponding to a proton-nucleon cms energy of √ s = 41.6 GeV. The combined results for the decay channels Υ → e+e− and Υ → μ+μ− yield a ratio R = (9.0±2.1) ·10−6 . The corresponding Υ production cr...
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The equations of classical spin-orbit motion can be extended to a Hamiltonian system in 9-dimensional phase space by introducing a coupled spin-orbit Poisson bracket (18) and a Hamiltonian function (20). After this extension and by establishing connections between initial and extended systems it becomes possible to apply the methods of the theory of Hamiltonian systems to the study of polarized...
Electrical field changes across the function membrane of photosynthesis have been measured via special absorption changes. These occur by the action of the field on pigments which are located within the membrane. — Proton translocation has been measured by absorption changes of added pH indicators. Repetitive flash technique has been used for the sensitive detection of these absorp tion change...
In these proceedings we present a brief overview of recent open heavy flavor and quarkonium production theory in proton-proton (pp), proton/deuteron-nucleus (pA, dA) and nucleus-nucleus collisions.
A cDNA library from Chlamydomonas reinhardtii, constructed in the phage expression vector lambda gt11, was probed with antiserum directed against the nuclear-encoded gamma subunit of the chloroplast H+-transporting ATP synthase [ATP phosphohydrolase (H+-transporting) or chloroplast coupling factors 0 and 1, EC 3.6.1.34] of C. reinhardtii. A cDNA was isolated and transcribed in vitro. The transc...
In a series of recent papers, Ivanov et al. and Oberhummer et al. have calculated the rate for the p + p → d + e + νe reaction with a zero-range four-fermion effective interaction and find a result 2.9 times higher than the standard value calculated from non-relativistic potential theory. Their procedure is shown to give a wrong answer because their assumed interaction disagrees with low-energy...
A new technique is described for the isochoric heating (i.e., heating at constant volume) of matter to high energy-density plasma states (>10(5) J/g) on a picosecond time scale (10(-12)sec). An intense, collimated, ultrashort-pulse beam of protons--generated by a high-intensity laser pulse--is used to isochorically heat a solid density material to a temperature of several eV. The duration of he...
The investigation of a proposed glueball filter in proton-proton collisions led us to show that its action is in fact easily understood in terms of kinematics. While the procedure proposed stays of interest in reducing background when looking for centrally produced resonances of specified spin and parity, we stress that it can be put to advantage in giving access to the polarization of gluons i...
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