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Gaithersburg, MD November 7-8, 2002. 1. Introduction Mass spectrometry is a rapidly evolving measurement technique for synthetic polymers. It holds the promise of providing not only absolute molecular mass distributions […]

Autocorrelation is shown to be useful in describing the periodic patterns found in high- resolution mass spectra of synthetic polymers. Examples of this usefulness are described for a simple linear […]

A study is conducted on the corrosive nature of iron-zinc alloys which are electroplated on mild steel, in aerated and deaerated quadrupuly distilled water using valence band x-ray photoelectron spectroscopy. Results indicate that the 17% iron alloy forms a protective zinc oxide surface.

Secondary ion mass spectrometry is the most used mass spectrometric technique for the surface analysis of molecular solids composed of organic, polymeric and biomolecular species. By increasing the projectile ion mass and kinetic energy, the secondary ion yields increase due to improved momentum transfer to the surface.

The Risen Christ by Michelangelo in the church of Santa Maria sopra Minerva in Rome is one of the artist's least admired works. While modern observers frequently have found fault with the statue, it satisfied its patrons enormously and was widely admired by contemporaries. Not least, the sculpture has suffered from the manner in which it is presently displayed and from biased photographic reproduction that emphasizes unfavorable and inappropriate views of Christ. In this paper, I examine the Risen Christ afresh by restoring it to its original context and discussing its unusual and moving iconography. Thus, it is possible to comprehend the effect of the Christ as a devotional object, to appreciate its success as a work of art, and to account for some of the modern distaste.

1. SummaryNon-targeted global metabolite profiles of Standard Reference Material (SRM) 1950 Metabolites in Human Plasma were obtained on five different liquid chromatography/mass spectrometry (LC/MS) instrument combinations using identically prepared samples. [...]

This is the fourth volume of Alessandro Parronchi's Opere giovanili di Michelangelo. Despite the title and emphasis of the first volumes on the artist's 'youthful works,' this collection of mostly [...]

The absolute molecular orientational distribution of the pendant phenyl groups at the free surface of polystyrene (PS) thin films on oxidized silicon substrates is studied using vibrationally resonant sum frequency generation (VR-SFG). Results show that at the PS-air interface, the pendant phenyl groups are oriented away from the film.