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Journals

Unclenching Chorismate Lynse: Effects of the C90A Active Site Mutation and of Binding the Inhibitor Vanillate

October 16, 2008

Author(s)

David Travis Gallagher, N Smith, M P. Mayhew, Marcia J. Holden

Chorismate Lyase from E. coli is strongly product inhibited retaining the product 4-hydroxybenzoate internally by extensive hydrogen bonding.The biological

Comment on Remarks on the Information Entropy Maximization Method and Extended Thermodynamics

October 16, 2008

Author(s)

B Robertson

A recent paper by B. C. Eu discusses maximum entropy Jaynes, 1957}, the projection-operator technique, Zwanzig, 1960} and extended thermodynamics. It analyzes a

The Disputed Discovery of Element 43: A Reexamination of an Elegant Early Use of Wavelength-Dispersive X-Ray Microanalysis

October 16, 2008

Author(s)

J T. Armstrong, P H. Van Assche

In 1925, Noddack, Tacke and Berg reported discovery of element Z = 43, which they named Masurium, based on line identification of x-ray emission spectra from

Cloning and Characterization of Adenylyl Cyclase from Mycobacterium Tuberculosis H37Rv Reveals its Homology to the Eukaryotic Enzyme

October 16, 2008

Author(s)

M A. Kamireddi, K. Dhanireddi, A M. Davis, Prasad T. Reddy

The deduced amino acid sequence (443 aa) encoded by the adenylyl cyclase gene from the human pathogen Mycobaterium tuberculosis H37Rv (Mtb AC) is hypothesized

Improved Performance in Electron-Excited Energy Dispersive X-Ray Spectrometry With the Silicon Drift Detector (SDD): Output Count Rates Above 100 kHz With Application to X-Ray Imaging

October 16, 2008

Author(s)

Dale E. Newbury

Energy dispersive x-ray spectrometry (EDS) is a key characterization method in electron beam instruments: the scanning electron microscope (SEM), analytical

Electron Microprobe Characterization of Si-Ge Alloys and Films for Use as Microanalysis Reference Materials

October 16, 2008

Author(s)

Ryna B. Marinenko, Shirley Turner, Dale E. Newbury, Robert L. Myklebust, Lee L. Yu, Rolf L. Zeisler, David S. Simons, John A. Small

Bulk SiGe wafers cut from single-crystal boules and SiGe thick films on Si wafers were evaluated with the electron probe microanalyzer for the extent of

Discrimination Between Wild-Type and Ampicillin-Resistant Escherichia coli by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry

October 16, 2008

Author(s)

Johanna Camara

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) was optimized to discriminate between wild-type and ampicillin

Summary of ISO/TC 201 Standard: XXIX. ISO 20903: 2006 - Surface Chemical Analysis - Auger Electron Spectroscopy and X-Ray Photoelectron Spectroscopy - Methods Used to Determine Peak Intensities and Information Required When Reporting Results

October 16, 2008

Author(s)

Cedric J. Powell

This article is a brief summary of ISO Standard 20903. This standard provides information on methods for the measurement of peak intensities in Auger electron

Isodesmic Reactions for Transition States: Reactions of Cl Atoms With Methane and Halogenated Methanes

October 16, 2008

Author(s)

Vadim D. Knyazev

The performance of the technique of isodesmic reactions for transition states has been analyzed via application to 17 reactions of abstraction of hydrogen atoms

A Universal Algorithm for Calculating the Backscattering Factor in Auger Electron Spectroscopy

October 16, 2008

Author(s)

Cedric J. Powell, Aleksander Jablonski

We describe a universal Monte Carlo algorithm that can be used for the efficient calculation of backscattering factors (BFs) for quantitative Auger-electron

The Discovery of Type-IV Binary Fluid Phase Behavior

October 16, 2008

Author(s)

Johanna Levelt Sengers

The analysis by Scott and Van Konynenburg of the binary Van der Waals mixture for constant excluded volume uncovered the Type-IV phase diagram as a transition

Accuracy Issues in Chemical and Dimensional Metrology in the SEM and TEM

October 16, 2008

Author(s)

J H. Scott

In this work computer simulations are used to understand systematic errors and accuracy concerns in both dimensional and chemical metrology in the scanning

Enthalpies of Solution of Sodium Chloride and Potassium Sulfate in Water. Thermodynamic Properties of the Potassium Sulfate and Water System

October 16, 2008

Author(s)

Donald G. Archer, D R. Kirklin

An adiabatic calorimeter was used to measure enthalpies of solution into water of sodium chloride (0.13 mol.kg-1) at nominal temperatures of 298.15 K, 303.15 K

Dependence of Calculated Effective Attenuation Lengths on Transport Mean Free Paths Obtained from Two Atomic Potentials

October 16, 2008

Author(s)

Cedric J. Powell, Aleksander Jablonski

We report changes in electron effective attenuation lengths (EALs) resulting from use of transport mean free paths (TMFPs) obtained from the Dirac-Hartree-Fock

Hydrogen-Bonded Complexes in Chloroform: Affinity, Entropy, and Conformation

October 16, 2008

Author(s)

M S. Head, R Luo, J A. Given, M K. Gilson

This paper uses a novel, efficient method of computing noncovalent binding affinities to study a series of flat, triply hydrogen-bonding molecules in chloroform

Fluorescence Properties of Fluorescein Isothioyanate (FITC) Immobilized on Microbeads

October 16, 2008

Author(s)

Adolfas Gaigalas, Lili Wang, A. Schwartz

We report measurements of the fluorescence properties of fluorescein isothiocyanate (FITC) immobilized on microbeads with spacers of three different lengths

Coordination and Local Transport Gap in C₆₀ Chains on a Pentacene Template

October 16, 2008

Author(s)

Dan B. Dougherty, W Jin, J Cullen, Gregory Dutton, J Reutt-Robey, Steven W. Robey

The adsorption of C60 on a bilayer film of pentacene on Ag(111) is studied with scanning tunneling microscopy and spectroscopy. At low coverage, C60 molecules

Possible Identification of Dust From Comet Schwassmann-Wachmann-3 Collected in the Stratosphere

October 16, 2008

Author(s)

S R. Messenger, R M. Walker

In this paper, we derive constraints on the pre-Earth-encounter orbits and space exposure ages for the set of interplanetary dust particles collected in the

Quantum Teleportation with Atomic Qubits

October 16, 2008

Author(s)

J Chiaverini, T Schaetz, Joseph W. Britton, Wayne M. Itano, John D. Jost, Emanuel Knill, C. Langer, Dietrich Leibfried, R Ozeri, David J. Wineland

Fluid Properties Simulation Challenge. Recommendations for Problem II (f): Triethylene Glycol

October 16, 2008

Author(s)

L. A. Watts

Recommendations are given for Problem 11(@: triethylene glycol density at problem conditions (1) 0.1 MPa, 310 K and (2) 2 MPa, 280K. The recommendedvalues and

Reactivity Extrapolation from Small to Large Molecular Systems via Isodesmic Reactions for Transition States (RESLIR)

October 16, 2008

Author(s)

Vadim D. Knyazev

A method for calculating potential energy barriers of chemical reactions involving large molecules is presented and validated though evaluation of its

Model for the Asymmetric DC and Fluctuating Conduction of an Ion Channel

October 16, 2008

Author(s)

B Robertson, John J. Kasianowicz

A model for the asymmetric DC conduction of an ion channel is compared with measurements of the ionic current carried by an aqueous potassium chloride solution

Potential Dependence of Competitive Adsorption of PEG, Cl^-, and SPS/MPS on Cu: An In Situ Ellipsometric Study

October 16, 2008

Author(s)

Marlon L. Walker, Lee J. Richter, Thomas P. Moffat

Potential dependent adsorption of bis- (3-sodiumsulfopropyl disulfide) (SPS), 3-mercaptopropyl sulfonate (MPS), Cl , and polyethylene glycol (PEG) on evaporated

Experimental and Theoretical Evidence for an Octahedral Coordination of AlEDTA- in Aqueous Solution

October 16, 2008

Author(s)

Orkid Coskuner, Michael Hay, Emily Jarvis, Anne M. Chaka, Satis Myneni

The structure of the AlEDTA- (EDTA=ethylenediaminetetraacetate) complex in aqueous solution and its relationship to its crystalline structure have been debated

InChI a Structure Based IUPAC Identifier for 3-D Structures of AIDS Inhibitors

October 16, 2008

Author(s)

M D. Prasanna, H Rodriguez, J Vondrasek, A Wlodawer, Talapady N. Bhat

The human immunodeficiency virus encodes an aspartic protease which is responsible for posttranslational proteolytic processing of the gag and gag-pol

Preface. Physical Standards for Healthcare: Needs Assessment and Development.

October 16, 2008

Author(s)

Peter E. Barker

Preface explaining the issue of this journal devoted to physical standards needs assessment and development.

An Investigation of Discrimination Capacity and the Cause of Null Alleles in Linear Array Mitostrips Using Control Region Sequence Data.

October 16, 2008

Author(s)

Michael D. Coble, Margaret C. Kline, Janette W. Redman, Amy E. Decker, Peter Vallone, John Butler

Mitochondrial DNA (mtDNA) analysis of forensic evidentiary materials such as degraded bones and shed hairs can provide the forensic scientist with some genetic

Effects of Chain Length on the Rates of C-C Bond Dissociation in Linear Alkanes and Polyethylene

October 16, 2008

Author(s)

Vadim D. Knyazev

Molecular dynamics modeling of C-C bond dissociation is performed for a series of linear alkanes and polyethylene macromolecules with the chain lengths ranging

Thermal Plasma Synthesis of Magnetic Nanoparticles

October 16, 2008

Author(s)

J H. Scott, S. A. Majetich, Z Turgut, M E. McHenry, K Chowdary, M I. Boulos

A scalable synthesis route for the production of bare and carbon-coated metal nanoparticles is presented. Magnetic nanoparticles composed of pure Fe, pure Co

Vaopr-Liquid Critical Point for the Ternary Difluoromethane + Pentafluoroethane + 1,1,1,2-Tetrafluoroethane (R-32/125/134a) Mixture

October 16, 2008

Author(s)

Yukihiru Higashi

The vapor-liquid critical point for the ternary refrigerant mixture of difluoromethane (R-32) + pentafluoroethane (R-125) +1,1,1,2-tetrafluoroethane (R-134a)

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