نتایج جستجو برای: electron detachment

تعداد نتایج: 321826  

M MODARRES ZADEH,

Retinal detachment surgery has been considered an inpatient hospital procedure requiring preoperative and postoperative hospitalization. In this pilot study, outpatient retinal detachment surgery was performed on sixteen patients and the results (100% success rate after an average follow-up of 8.3 months) were comparable or better than reported overall success rates for retinal detachment ...

Journal: :European Physical Journal D 2021

The photodetachment energy threshold, as well vibrationally resolved spectral signatures of the lower lying excited states and dipole bound in model aromatic phosphonate, sulfonate phosphate oxyanions, has been investigated using a photofragmentation spectrometer equipped with cold ion trap. effect laser excitation was monitored by mass-selective detection product fragments or, alternatively, m...

2003
C. Jay Smallwood Wayne B. Bosma Ross E. Larsen Benjamin J. Schwartz

Since charge-transfer-to-solvent ~CTTS! reactions represent the simplest class of solvent-driven electron transfer reactions, there has been considerable interest in understanding the solvent motions responsible for electron ejection. The major question that we explore in this paper is what role the symmetry of the electronic states plays in determining the solvent motions that account for CTTS...

Journal: :Investigative ophthalmology & visual science 2004
Paul N Bishop David F Holmes Karl E Kadler David McLeod Kees Jan Bos

PURPOSE To determine whether aging vitreous collagen fibrils undergo ultrastructural changes that might underlie vitreous liquefaction and posterior vitreous detachment. METHODS Vitreous collagen fibrils from 21 human subjects (age range, 3-89 years) and from bovine eyes were isolated on electron microscopy grids. Cupromeronic blue labeling in the presence of 0.3 M MgCl(2) and immunogold labe...

Journal: :Journal of the American Society for Mass Spectrometry 2007
Julie T Adamson Kristina Håkansson

Electron detachment dissociation (EDD) has recently been shown by Amster and coworkers to constitute a valuable analytical approach for structural characterization of glycosaminoglycans. Here, we extend the application of EDD to neutral and sialylated oligosaccharides. Both branched and linear structures are examined, to determine whether branching has an effect on EDD fragmentation behavior. E...

Journal: :Journal of the American Society for Mass Spectrometry 2012
James R Kornacki Julie T Adamson Kristina Håkansson

Chloride anion attachment has previously been shown to aid determination of saccharide anomeric configuration and generation of linkage information in negative ion post-source decay MALDI tandem mass spectrometry. Here, we employ electron detachment dissociation (EDD) and collision activated dissociation (CAD) for the structural characterization of underivatized oligosaccharides bearing a chlor...

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