SUBJECTS caesium

When total DNA is subjected to high speed density gradient centrifugation in caesium chloride, a large band of nuclear DNA and one or more small satellite bands are usually observed. Up to four satellite DNA bands have been detected in... 

Table 2. Electronic origins (all in cm-1) at very low temperatures in crystalline caesium and rubidium uranyl chloride, caesium uranyl nitrate and sodium uranyl acetate. The quantum number Q characterizing many-electron states in linear chromophores (subject to perceptible relativistic effects) may correspond to two energy levels because of the 4 or 6 ligating atoms in the equatorial plane...

The definitions of the seven SI base units are subject to changes as experimental methods lead to an increase in precision and accuracy. This led in the past to a redefinition of the second by counting the periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom. In 1967/68 it replaced the previously adopted definition of the second as the fraction 1/31 556 925.9747 of the tropical year for 1900 January 0 at 12 h ephemeris time. Today, for example, one wishes to redefine the kilogram (along with the ampere, the kelvin and the mole) in terms of fundamental physical... 

Experiments under the restrictions of classical thermoelectrochemistry in open cells with moderate temperature variation addressed, to some extent, also the conditions in the bulk electrolyte solution and the properties of ions. Potentiometric measurements in aqueous solutions of hydrogen and potassium bromides yielded the temperature dependence of activity coefficients of important ions [58]. As mentioned in Chap. 2, all electrolyte solutions tend to approach the ideal state with increasing temperature. The conductance of various electrolytes has been studied in dependence on temperature [59-66]. Solvents studied were propanol [59], propylene carbonate [60, 64], dimethoxyethane [65], primary alcohols and acetonitrile [62]. Conductance values were used to determine transference numbers of ions in non-aqueous solution [62]. Salt melts of sodium and caesium halides also have been studied [66]. Theoretical considerations were subject of [63]. 

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