Ultraviolet matrix-assisted laser desorption/ionization mass spectrometric (UV-MALDI-MS) analysis of highly acidic, thermally labile species such as glycosaminoglycan-derived oligosaccharides is complicated by their poor ionization efficiency and tendency to fragment through the loss of sulfo groups. We have utilized a systematic approach to evaluate the effect of alkali metal counterions on th...

FACET, the Facility for Advanced Accelerator and Experimental Tests, is a new facility being constructed in sector 20 of the SLAC linac primarily to study beam driven plasma wakefield acceleration beginning in summer 2011. The nominal FACET parameters are 23GeV, 3nC electron bunches compressed to ~20μm long and focused to ~10μm wide. The intense fields of the FACET bunches will be used to field...

We report measurements of the absolute energies hyperfine components $12s \ ^2S_{1/2}$ and $13s levels atomic cesium, $^{133}$Cs. Using frequency difference between these components, we determine coupling constants for states, values with a relative uncertainty $\sim$0.06 %. also examine structure $11d ^2D_{J}$ ($J=3/2, 5/2$) resolve sign ambiguity from previous states. derive new, high precisi...

The polymorphism of liquid cesium at atmospheric pressure in thetemperature range ~590 K the form a second-order phasetransition, announced late 90s, is not confirmed new experimentalworks and computer simulations its properties. At same time, thequestion whether change properties with adecrease or increase density up to two times monotonous isaccompanied by various anomalies needs further rese...

We measured the concentrations of chromium, cesium, and tin in the cerebrospinal fluid (CSF) of 29 patients with brain tumors [21 benign (BBT) and eight malignant (MBT)], 28 leukemic patients, 14 patients with lymphoma or noncerebral solid tumors (NLCT), and 32 control patients (15 with neurological disorders and 17 with noneurological conditions) by use of flameless atomic absorption spectroph...

The molecular and crystal structures of solvent-free potassium, rubidium, and cesium oxalates have been determined ab initio from high-resolution synchrotron and X-ray laboratory powder patterns. In the case of potassium oxalate K(2)C(2)O(4) (a = 10.91176(7) A, b = 6.11592(4) A, c = 3.44003(2) A, orthorhombic, Pbam, Z = 2), the oxalate anion is planar, whereas in cesium oxalate Cs(2)C(2)O(4) (a...

We synthesized a variety o f colloidal and non-colloidal mixed hexacyanoferrate(II) com plexes of Fe, C u, C o, Ni, Z n . Mn and studied the cesium sorption in vitro under physiological conditions (artificial gastric juice. pH 1.2 and artificial duodenal ju ice. pH 6.8). All of the hexacyanoferrates under study (except cesium iron (III) hexacyanoferrate C sFeH C F) sorb tracer am ounts of 1'7Cs...

Both calcium-containing and noncalcium-containing phosphate binders can increase gastrointestinal calcium absorption. Previously, we observed that lanthanum carbonate administration to rats with renal failure is not associated with increased calciuria. Additionally, lanthanum carbonate treatment in dialysis patients has been associated with a less pronounced initial decrease in serum parathyroi...