Journals

Surface plasmon resonance imaging of cells and surface-associated fibronectin

February 26, 2009

Author(s)

Alexander W. Peterson, Michael W. Halter, Alessandro Tona, Kiran Bhadriraju, Anne L. Plant

Background A critical challenge in cell biology is quantifying the interactions of cells with their extracellular matrix (ECM) environment and the active

ATP hydrolysis and DNA binding confer thermostability on the MCM helicase

February 25, 2009

Author(s)

Nozomi Sakakibara, Frederick P. Schwarz, Zvi Kelman

Minichromosome maintenance (MCM) helicase is the replicative helicase in archaea. The enzyme utilizes the energy derived from ATP hydrolysis to translocate

Ionic Hydrogen bond Networks and Ion Solvation 1. An Efficient Monte Carlo / Quantum Mechanical Method for Structural Search and Energy Computation: Ammonium / Water

February 25, 2009

Author(s)

Yi-Lei Zhao, Michael Mautner, Carlos A. Gonzalez

Hydrogen bond networks about solvated ions can form many alternative structures, requiring extensive conformational searches with accurate but affordable energy

Competition Between Self-Assembly and Surface Adsorption

February 25, 2009

Author(s)

Jacek Dudowicz, Jack F. Douglas, Karl Freed

We investigate a minimal equilibrium polymerization model of the general competition between self-assembly on a boundary and in solution that arises when an

Controlled Formation and Resistivity Scaling of Nickel Silicide Nanolines

February 25, 2009

Author(s)

Bin Li, Zhiquan Luo, Paul S. Ho, Li Shi, Lew Rabenberg, JiPing Zhou, Richard A. Allen, Michael W. Cresswell

We demonstrate a top-down method to fabricate nickel mono-silicide (NiSi) nanolines with smooth side walls and linewidths down to 15 nm. Four probe electrical

Atomistic Simulations of Crystal-Melt Interfaces in a Model Binary Alloy: Interfacial Free Energies, Adsorption Coefficients and Excess Entropy

February 24, 2009

Author(s)

Chandler A. Becker

Monte-Carlo and molecular-dynamics simulations are employed in a study of the equilibrium structural and thermodynamic properties of crystal-melt interfaces in

Roles of CIPM and IAPWS Standards for the Density of Water

February 24, 2009

Author(s)

Allan H. Harvey, R Span, K Fujii, M. Tanaka, Richard Davis

This contribution discusses the relative roles of the standard formulation for the density of liquid water recommended for metrology by the International

ThermoData Engine (TDE): Software Implementation of the Dynamic Data Evaluation Concept. 3. Binary Mixtures

February 24, 2009

Author(s)

Vladimir Diky, Robert D. Chirico, Andrei F. Kazakov, Chris D. Muzny, Michael D. Frenkel

ThermoData Engine (TDE) is the first full-scale software implementation of the dynamic data evaluation concept, as reported recently in this journal. The

Identification of Active Sites of Biomolecules II: Saccharide and Transition Metal ion in Aqueous Solution

February 23, 2009

Author(s)

Orkid Coskuner, Denis E. Bergeron, Luis C. Rincon, Jeffrey W. Hudgens, Carlos A. Gonzalez

We discuss the coordination mechanism of FeIII and methyl-a-mannopyranoside in aqueous solution using a recently presented integrated approach comprising ab

FiPy: PDEs in Python

February 23, 2009

Author(s)

Jonathan E. Guyer, Daniel Wheeler, James A. Warren

Partial differential equations (PDEs) are ubiquitous to the mathematical description of physical phenomena. They describe the relationships between functions of

Measuring Cell Adhesion and Proliferation in Polymer Scaffolds by X-Ray Microcomputed Tomography

February 23, 2009

Author(s)

Shauna M. Dorsey, Sheng Lin-Gibson, Carl Simon Jr.

We have explored a new X-ray microcomputed tomography method (CT) for assessing cell adhesion and proliferation in polymer scaffolds. Standard methods for

Study of hydrogen diffusion in superprotonic ionic conductors, MHXO4, by μ+SR and QENS

February 21, 2009

Author(s)

Yutaka Ikedo, Hiroshi Nozaki, Masashi Harada, Jun Sugiyama, Taku J. Sato, Yasumitsu Matsuo, Kusuo Nishiyama, James S. Lord, Yiming Qiu, John R. Copley

In order to clarify the mechanism of high proton conductivity (σH+) for superprotonic ionic conductors, MHXO4, where M=Cs and Rb, X=S and Se, muon-spin rotation

Switching-off Hydrogen Peroxide Hydrogenation in the Direct Synthesis Process

February 20, 2009

Author(s)

Andrew A. Herzing, Jennifer Edwards, Benjamin Solsona, Edwin Ntainjua, Albert F. Carley, Graham J. Hutchings, Christopher J. Kiely

Hydrogen peroxide is an important disinfectant and bleach and is currently manufactured from an indirect process involving sequential hydrogenation/oxidation of

Evaluation of Polydimethylsiloxane Modification Methods for Cell Response

February 20, 2009

Author(s)

Lisa Pakstis, Alan Zheng, Theodore V. Vorburger, Joy P. Dunkers, Timothy P. Quinn, Marcus T. Cicerone

Many methods exist in the literature to modify surfaces with extracellular matrix (ECM) proteins prior to cell attachment. However, there are few studies that

Development of Ultrafast Photochromic Organometallics and Photoinduced Linkage Isomerization of Arene Chromium Carbonyl Derivatives

February 20, 2009

Author(s)

Tung T. To, Edwin J. Heilweil, Duke Charles, Ruddick Kristie, Webster E. Charles, Burkey Theodore

We review recent studies of processes relevant to photoinduced linkage isomerization of organometallic systems with the goal of preparing organometallics with

High-contrast dark resonances with linearly polarized light on the D₁ line of alkali atoms with large nuclear spin

February 20, 2009

Author(s)

Ken-ichi Watabe, Takeshi Ikegami, Akifumi Takamizawa, Shinya Yanagimachi, Shin-ichi Ohshima, Svenja A. Knappe

High-contrast coherent population trapping signal was observed on the Cs-D1 line using a bichromatic linear polarized light (lin||lin) field. The maximum

Experimental and Simulation Studies of Resistivity of Nanoscale Copper Films

February 19, 2009

Author(s)

Emre Yarimbiyik, Harry A. Schafft, Richard A. Allen, Mark D. Vaudin, Mona E. Zaghloul

The effect of film thickness on the resistivity of thin, evaporated copper films (approximately 10 nm to 150 nm thick) was determined from sheet resistance

The feeding biomechanics and dietary ecology of Australopithecus africanus

February 19, 2009

Author(s)

Brian R. Lawn, David Strait, Gerhard Weber, Simon Neubauer, Janine Chalk, Brian Richmond, Peter Lucas, Mark Spencer, Caitlin Schrein, Paul Dechow, Callum Ross, Ian Grosse, Barth Wright, Paul Constantino, Bernard Wood, Qian Wang, Dennis Slice, Craig Byron, Amanda Smith

The African Plio-Pleistocene hominins known as australopiths evolved a distinctive craniofacial morphology that traditionally has been interpreted as a dietary

Comparison of Measurement Techniques for Linewidth Metrology on Advanced Photomasks

February 19, 2009

Author(s)

Stewart Smith, Andreas Tsiamis, Martin McCallum, Andrew Hourd, J Stevenson, Anthony Walton, Ronald G. Dixson, Richard A. Allen, James E. Potzick, Michael W. Cresswell, Ndubuisi George Orji

This paper compares electrical, optical, and atomic force microscope (AFM) measurements of critical dimension (CD)made on a chrome on quartz photomask. Test

Entangling Light in its Spatial Degrees of Freedom with 4-Wave Mixing in an Atomic Vapor

February 18, 2009

Author(s)

Vincent Boyer, Alberto M. Marino, Raphael C. Pooser, Paul D. Lett

The entanglement properties of two beams of light can reside in subtle correlations that exist in the unavoidable quantum fluctuations of the amplitudes and the

Melting and Chemical Behaviors of Isothermally-Crystallized Gamma-Irradiated Syndiotactic Polystyrene

February 18, 2009

Author(s)

Tinh Nguyen, Sanboh Lee, Kuo L. Chien

Melting and chemical behaviors of isothermally-crystallized gamma-irradiated sPS have been investigated using differential scanning calorimetry, FTIR, and X-ray

Kinetic Barriers of H-Atom Transfer Reactions in Alkyl, Allylic, and Oxoallylic Radicals, as Calculated by Composite Ab Initio Methods

February 18, 2009

Author(s)

Carrigan J. Hayes, Donald R. Burgess Jr.

Composite ab initio and density functional theory (DFT) methods were used to explore internal hydrogen-atom transfers in a variety of primary, secondary, and

An Automated Tensile Testing Machine For Monitoring The Evolution Of Fiber Breaks In Model Composite Test Specimens

February 18, 2009

Author(s)

Gale A. Holmes, Sheldon Wesson, Walter G. McDonough, Jae Hyun Kim, Anil N. Netravali, Jo N. Walker, Rob Johnson

The molecular basis of mesophase ordering in a thiophene-based copolymer

February 18, 2009

Author(s)

Dean M. DeLongchamp, Regis J. Kline, Youngsuk Jung, Eric K. Lin, Daniel A. Fischer, David J. Gundlach, Andrew Moad, Lee J. Richter, Michael F. Toney, Martin Heeney, Iain McCulloch

The carrier mobility of poly(2,5-bis(3-alkylthiophen-2-yl) thieno[3,2-b]thiophene) semiconductors can be substantially enhanced after heating through a

Improved signal-to-noise ratio of 10 GHz microwave signals generated with a mode-filtered femtosecond laser frequency comb

February 18, 2009

Author(s)

Scott A. Diddams, Matthew S. Kirchner, Tara M. Fortier, Danielle Braje, A. M. Weiner, Leo W. Hollberg

We use a Fabry-Perot cavity to optically filter the output of a Ti:sapphire frequency comb to integer multiples of the original 1 GHz mode spacing. This

Tunable Delay of Einstein-Podolsky-Rosen Entanglement

February 18, 2009

Author(s)

Alberto M. Marino, Raphael C. Pooser, Vincent Boyer, Paul D. Lett

Entanglement is an important quantum resource which displays correlations between two subsystems that are stronger than the ones that can be obtained

Radionuclide Standardization by Primary Methods: An Overview

February 17, 2009

Author(s)

Ronald Colle

Primary methods of radionuclidic standardization serve as the underlying basis of the physical measurement standards of activity that are needed in virtually

Bayesian uncertainty analysis under prior ignorance of the measurand vs. analysis using the Supplement to the Guide: A comparison

February 17, 2009

Author(s)

Blaza Toman, Clemens Elster

A recent supplement to the GUM (GUM S1) is compared with a Bayesian analysis in terms of a particular task of data analysis, one where no prior knowledge of the

Transmission electron microscopy characterization of colloidal copper nanoparticles and their chemical reactivity

February 16, 2009

Author(s)

Guangjun Cheng, Angela R. Hight Walker

A colloidal synthesis route was developed to produce face-centered cubic (fcc) copper (Cu) nanoparticles in the presence of the surfactants in an organic

Effect of specimen orientation and extrusion welds on the fatigue life of an AA6063 alloy

February 13, 2009

Author(s)

Nicholas Nanninga

The effect of specimen orientation and extrusion seam welds on the fatigue life of specimens milled from a hollow AA6063 alloy extrusion profile have been