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Displaying 31751 - 31775 of 73829

Consecutive Neutral Losses of H 2 O and C 2 H 4 O From N-Terminal Thr-Thr and Thr-Ser in Collision-Induced Dissociation of Protonated Peptides. Position Dependent Water Loss From Single Thr or Ser.

November 1, 2007
Author(s)
Pedatsur Neta, Quan-Long Pu, Xiaoyu Yang, Stephen E. Stein
A two-step neutral loss from tryptic peptides containing Thr-Thr or Thr-Ser at their N-terminus is studied. This process also requires a mobile proton (i.e., the number of charges on the peptide is greater than the number of basic amino acids) and leads to

Delivery of Fluorescent Probes Using Iron Oxide Particles as Carriers Enables In Vivo Labeling of Migrating Neural Precursors for MRI and Optical Imaging

November 1, 2007
Author(s)
James P. Sumner, Richard Conroy, Eric Shapiro, John M. Moreland, Alan P. Koretsky
Iron oxide particles are becoming an important contrast agent for magnetic resonance imaging (MRI) cell tracking studies. Simultaneous delivery of fluorescence indicators with the particles to individual cells offers the possibility of correlating optical

Emerging Topics: MEMS Atomic Clocks

November 1, 2007
Author(s)
Svenja A. Knappe
The combination of MEMS fabrication with atomic clocks has enabled a new generation of small, cheap, low-power devices. Since the proposal of chip-scale atomic clocks (CSACs) in 2002, the fields of MEMS-based atomic sensors and coherent population trapping

Full Ensemble and Bench Scale Testing of Fire Fighter Protective Clothing

November 1, 2007
Author(s)
D W. Stroup, R A. McLAne
The Thermal Protective Performance (TPP) test was developed to quantify the performance of fire fighter protective clothing ensembles under an intense thermal exposure. This test method has certainly helped to improve the thermal protection of fire fighter

Large-scale MCHF Calculation of the Li I 4d-4f Energy Separation

November 1, 2007
Author(s)
Yuri Ralchenko, Charlotte Fischer
The calculational methods in atomic structure are currently capable of providing the level of accuracy close to that of the most precise experiments. The multiconfiguration Hartree-Fock method is applied to calculation of the 4d--4f energy difference in Li

Methodology for Evaluating Candidate Geometric Reference Scaffolds

November 1, 2007
Author(s)
Joy P. Dunkers, Stefan D. Leigh, David Dean, M Cooke, Richard Ketcham, Marcus T. Cicerone
The motivation for the work is to rank candidate reference scaffolds by quality metrics in a systematic and quantitative manner by screening several microstructural descriptors of importance. We chose total pore volume, pore volume distribution, and pore

Rendering UML Activity Diagrams as Human-Readable Text

November 1, 2007
Author(s)
David Flater, Philippe A. Martin, Michelle L. Crane
We describe a modification of the Petri Net Linear Form notation to support the rendering of Unified Modeling Language (UML) Activity Diagrams as human-readable text. This new notation, called the Activity Diagram Linear Form, allows UML Activity Diagrams
Displaying 31751 - 31775 of 73829
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