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Journals

DNA Base Damage by the Antitumor Agent 3-Amino-1,2,4-Benzotriazine 1,4-Dioxide (Tirapazamine)

September 24, 2003

Author(s)

M Birincioglu, Pawel Jaruga, G Chowdhury, H Rodriguez, Miral M. Dizdar, K Gates

Tirapazamine is a bioreductively activated DNA-damaging agent that selectively kills the hypoxic cells found in solid tomors. This compound shows great clinical...

Atomic Force Microscope Laser Illumination Effects on a Sample and Its Application for Transient Spectroscopy

September 23, 2003

Author(s)

Gyoung H. Buh, Joseph Kopanski

A scanning capacitance microscope (SCM) is used to monitor the irradiation effect on a sample in a conventional atomic force microscope (AFM). The photo...

Phase Transitions Within the Isolated Polymer Molecule: Coupling of the Polymer Threading a Membrane Transition to the Helix-Random Coil, the Collapse, the Adsorption, and the Equilibrium Polymerization Transitions

September 22, 2003

Author(s)

Edmund A. DiMarzio, John J. Kasianowicz

The polymer threading a membrane transition (PTM), which is a first-order thermodynamic phase transition for an isolated linear polymer in the limit of infinite...

Structure and Magnetic Properties of Electrodeposition Co on n-GaAs (001)

September 19, 2003

Author(s)

A X. Ford, John E. Bonevich, Robert D. McMichael, Mark D. Vaudin, Thomas P. Moffat

Co thin films have been electrodeposited on n-type (001) GaAs. The structure and texture of the films were investigated using x-ray diffraction (XRD) and...

Quantum Entanglement of Fock States with Perfectly Efficient Ultraslow Single-Probe Photon Four-Wave Mixing

September 18, 2003

Author(s)

Lu Deng, M. G. Payne

We propose a method to achieve quantum entanglement of two Fock states with perfectly efficient, ultraslow propagation enhanced four-wave mixing. A cold atomic...

Metal Patterning Using Tailored Functional Group Chemistry: Selective, Electroless Deposition of Metals on Self-Assembled Monolayers

September 16, 2003

Author(s)

Christopher D. Zangmeister, Roger D. van Zee

This study investigates the attachment of copper particles to self-assembled monolayers of mercaptobenzoic acids (MBA) on gold substrates. The carboxylate...

Kinetic Isotope Effects in the Active Site of B-Subtilis Chorismate Mutase

September 15, 2003

Author(s)

S. E. Worthington, A. E. Roitberg, Morris Krauss

Kinetic Isotope Effects are determined for the enzyme-catalyzed Claisen rearrangement of chorismate to prephenate using computational methods. The reported...

Interdiffision in Polystyrene and End-Functional Polystyrene Thin Films Near a Solid Surface

September 10, 2003

Author(s)

Chengqing C. Wang, Vivek M. Prabhu, Christopher L. Soles, B D. Vogt, Wen-Li Wu, Eric K. Lin, Sushil K. Satija

Polymer interdiffusion near the polymer/solid interface is studied using neutron reflectometry. Bilayers of hydrogenated polystyrene (hPS) and deuterated...

High-Frequency Characteristics of Metal/Native-Oxide Multilayers

September 5, 2003

Author(s)

Geoffrey S. Beach, Thomas J. Silva, F. T. Parker, A. E. Berkowitz

The high-frequency magnetization dynamics of magnetically soft Co χFe 100-χ metal/native-oxide multilayers were studied as a function of alloy composition (10...

Large-Scale Modeling of Fire Suppression with Water Sprays

September 2, 2003

Author(s)

Kevin B. McGrattan

The mechanisms underlying fire suppression by water can bedivided into gas and solid phase phenomena. Numerical models ofthese phenomena are dependent on the...

Temperature Characterization in the Collection Tank of the NIST 26 m(3) PVTt Gas Flow Standard

September 1, 2003

Author(s)

Aaron N. Johnson, John D. Wright, Michael R. Moldover, Pedro I. Espina

Gas temperature gradients created during the filling stage of a PVTt (Pressure-Volume-Temperature-time) calibration cycle, and those imposed by inhomogeneous...

Pseudopotential Model of Ultracold Atomic Collisions in Quasi-One and Two-Dimensional Traps

September 1, 2003

Author(s)

E L. Bolda, Eite Tiesinga, Paul S. Julienne

We describe a model for s-wave collisions between ground state atoms in optical lattices considering especially the limits of quasi- one and two-dimensional...

Reciprocity Law Experiments in Polymeric Photodegradation: A Critical Review

September 1, 2003

Author(s)

Jonathan W. Martin, Joannie W. Chin, Tinh Nguyen

celerating the photodegradation of polymeric materials is of great interest in weathering research. One way of achieving acceleration is by exposing polymeric...

Thermolithographic Patterning of Sol-Gel Metal Oxides on Micro hot plate Sensing Arrays Using Organosilanes

September 1, 2003

Author(s)

N O. Savage, S V. Roberson, John G. Gillen, Michael J. Tarlov, Stephen Semancik

Sol-gel derived SnO2 and Fe2O3 were selectively deposited on elements of microhotplate (?HP) arrays. The silicon micromachined ?HP arrays contain heating...

Cloning and Expression of the Gene for a Novel Protein From Mycobacterium Smegmatis With Functional Similarity to Eukaryotic Calmodulin

September 1, 2003

Author(s)

Prasad T. Reddy, C R. Prasad, P H. Reddy, D J. Reeder, K H. McKenney, H Jaffe, M N. Dimitrova, A Ginsburg, A Peterkofsky, P S. Murthy

The calmodulin-like protein from Mycobacterium smegmatis (MSM-CAMLP) was purified to homogeneity with a yield of about 1 g from 70 g of cells. Peptide sequence...

The Development of Reduced Size STR Amplicons as Tools for Analysis of Degraded DNA

September 1, 2003

Author(s)

John M. Butler, Y Shen, B. R. McCord

The half-life of ⁷⁶As

September 1, 2003

Author(s)

Richard M. Lindstrom, M Blaauw, R F. Fleming

Using k₀ in PGAA: Perspectives

September 1, 2003

Author(s)

Richard M. Lindstrom

Approach to Improving Network Capable Application Processor Based on IEEE 1451 Standard

September 1, 2003

Author(s)

Kang B. Lee

The IEEE 1451 standard supports the structure of distributed data acquisition systems and networks. The key components for such a distributed network are the...

Optimizing Thermal-Optical Methods for Measuring Atmospheric Elemental (Black) Carbon: A Response Surface Study

September 1, 2003

Author(s)

Joseph M. Conny, D Klinedinst, Scott A. Wight, J L. Paulsen

The chemical, physical, and morphological complexity of atmospheric aerosol black carbon (BC) presents major problems in measurement accuracy. Methods based on...

On Use of Bayesian Statistics to Make Guide to the Expression of Uncertainty in Measurement Consistent

September 1, 2003

Author(s)

Raghu N. Kacker, Albert W. Jones

The Guide to the Expression of Uncertainty in Measurement recommends a standardized way of expressing uncertainty in measurement and provides a comprehensive...

Abrasive Machining of Porcelain and Zirconia With a Dental Handpiece

September 1, 2003

Author(s)

L Yin, S Jahanmir, L K. Ives

The machining characteristics and material removal mechanisms of two dental ceramics feldspathic porcelain and yttria-stabilized tetragonal zirconia - were...

Transmission Electron Microscopy Study of Ruddlesden-Popper Ca_n+1Mn_n0_3n+1n = 2 and 3 Compounds

September 1, 2003

Author(s)

Leonid A. Bendersky, M Greenblatt, R Chen

Two Ruddlesden-Popper compounds Can+1MnnO3n (+ 1) with n = 2 and 3 synthesized by a citrate gel technique have been studied by TEM. The structure of Ca4Mn3O10...

The Clinical Effect of Amorphous Calcium Phosphate (ACP) on Root Surface Hypersensitivity

September 1, 2003

Author(s)

S B. Geiger, S Matalon, Joe Blasic, Ming L. Tang, F Eichmiller

ntin hypersensitivity is a transient condition that often resolves with the natural sclerotic obturation of dentin tubules. A method of rapidly forming calcium...

Thermal Degradation of Marble: Indications From Finite-Element Modelling

September 1, 2003

Author(s)

T Weiss, S Siegesmund, Lin-Sien H. Lum

Microstructure-based finite element simulations were used to study theThermo-mechanical behavior of calcite marbles. Give the same microstructure, a strongly...

Confinement Effects on Mositure Absorption Kinetics in Polyelectrolyte Films

September 1, 2003

Author(s)

B D. Vogt, Christopher L. Soles, Hae-Jeong Lee, Eric K. Lin, Wen-Li Wu

Quartz crystal microbalance (QCM) measurements were used to determine the absorption of water into thin poly(4-ammonium styrenesulfonic acid) films from...

A Direct Comparison of Surface and Bulk Chain-Relaxation in Polystyrene

September 1, 2003

Author(s)

Wen-Li Wu, S Sambasivan, C M. Wang, William E. Wallace, Jan Genzer, Daniel A. Fischer

Near-edge x-ray absorption fine structure (NEXAFS) spectroscopy was used to meausre simultaneously the relaxation rates of polystyrene (PS) molecules at the...

Optical Manipulation and Fusion of Liposomes as Microreactors

September 1, 2003

Author(s)

S Kulin, N Kishore, Kristian Helmerson, Laurie E. Locascio

We present an all optical method to manipulate and fuse giant liposomes, typically 10 nm in diameter. Optical tweezers are used to trap two individual liposomes...

40 Years of Metrology With Synchrotron Radiation at SURF

September 1, 2003

Author(s)

Uwe Arp, Steven E. Grantham, Simon G. Kaplan, Ping-Shine Shaw, Charles S. Tarrio, Robert E. Vest

the advantages of a compact synchrotron radiation source like the Synchrotron Ultraviolet Radiation Facility for metrology in the ultraviolet and extreme...

Submillimeter-Wavelength Plasma Chemical Diagnostics for Semiconductor Manufacturing

September 1, 2003

Author(s)

Eric C. Benck, G Y. Golubiatnikow, Gerald T. Fraser, B Ji, S A. Motika, E J. Karwacki

Submillimeter-wavelength, linear-absorption spectroscopy has been applied to the chemical diagnostics of a reactive-ion etching plasma in a modified...

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