Journals

Immunomodulatory Effects of Macrolide Antibiotics in Sulfur Mustard Exposed Airway Epithelial Cells: Quantum Dots-Mediated Immunocytochemical Analysis of iNOS and Diaminofluorescein-Mediated Flow Cytometric Analysis of Intracellular Nitric Oxide

October 12, 2021

Author(s)

X P. Gao, Radharaman Ray, Yan Xiao, Peter E. Barker, Prabhati Ray

Exposure of airway epithelial cells to 100 uM sulfur mustard significantly upregulated induced nitric oxide (iNOS) in cells. This response, quantitated by both...

Comparison of Extraction Methods for the Analysis of Ginkgo biloba Leaves and Ginkgo-Containing Tablets

October 12, 2021

Author(s)

S. Howerton, Kate Rimmer, Lane C. Sander

In preparation for the certification of three Standard Reference Materials containing Ginkgo biloba, three extraction techniques are compared. For the three...

A Loop in the N-terminal Region of MCM Mediates Communication With the Catalytic Domain

October 12, 2021

Author(s)

Nozomi Sakakibara, Rajesh Kasiviswanathan, E Melamud, Frederick P. Schwarz, Z Kelman

Minichromosome maintenance helicases are the presumptive replicative helicases, thought to separate the two strands of chromosomal DNA during replication. In...

Studies of Natural Organic Matter (NOM) Rejection by Membrane Filtration: Part 1

October 12, 2021

Author(s)

J Cho, G Amy, J J. Pellegrino

Abstract not provided.

Crystal Structure of the Escherichia Coli CobW Protein Suggests a GTP-Dependent Regulatory Function in the Cobalamin Synthesis Pathway

October 12, 2021

Author(s)

P P. Khil, R D. Camerini-Otero, A Teplyakov, G Obmolova, A J. Howard, G L. Gilliland

The crystal structure determination of E. coli CobW was undertaken as part of a structural genomics effort (http://s2f.carb.nist.gov) in order to assist with...

Development and Validation of a Spectral Library Searching Method for Peptide Identification from Tandem Mass Spectrometry

October 12, 2021

Author(s)

Henry Lam, Eric Deutsch, James E. Eddes, Jimmy K. Eng, Nichole King, Stephen Stein, H. Ueda

A notable inefficiency of shotgun proteomics experiments lie in the repeated rediscovery of the same identifiable peptides by sequence database searching...

Structure and Reactivity of the Hydrated Hematite (0001) Surface

October 12, 2021

Author(s)

T P. Trainor, Anne M. Chaka, P J. Eng, M Newville, G A. Waychunas, J G. Catalano, G E. Brown

Hematite (alpha-Fe 2 O 3 ) is significantly more reactive to water and metal ions than its isostructure corundum (alpha-Al 2 O 3u) under environmental...

A Predictive Formula for the Electron Stopping Power

October 12, 2021

Author(s)

Aleksander Jablonski, S Tanuma, Cedric J. Powell

We describe the development of a new analytical formula for the electron stopping power (SP) for electron energies between 200 eV and 30 keV. This formula...

Solution Analysis by Threading Single Molecules Through a Self-Assembled Nanometer-Scale Pore

October 12, 2021

Author(s)

John J. Kasianowicz, S. E. Henrickson, B Robertson, H H. Weetall

We show here the principles for using a single nanometer-scale pore to detect a wide variety of analytes (e.g. small ions, proteins, antigens, antibodies, DNA...

3.4 kb Mitochondrial Genome Deletion Serves as a Surrogate Predictive Biomarker for Prostate Cancer in Histopathologically Benign Biopsy Cores

October 12, 2021

Author(s)

Ryan L. Parr, Rajiv Dhir, J P. Jakupciak, Brian Reguly, William Montelpare, Gabriel D. Dakubo

Recently, we described a 3.4kb mitochondrial genome deletion having significance for identifying both malignant and benign prostate tissues (p

Arsenic and Antimony Implantations in SiC

October 12, 2021

Author(s)

J R. Tucker, M Rao, O W. Holland, P Chi, N A. Papanicolaou, J A. Freitas

Single and multiple energy As and Sb implantations were performed into p-type 6H-SiC epitaxial layers at room temperature (RT) and 800 degrees C. Secondary ion...

The Mitochondrial Apoptosis-Induced Channel MAC and Bax Channels Are Regulated by Cytochrome C

October 12, 2021

Author(s)

Li Guo, D Pietkiewicz, M M. Pavlov, John J. Kasianowicz, L M. Dejean, S J. Korsmeyer, B Antonsson, K W. Kinnally

l-2 family proteins regulate the appearance of the high-conductance channel MAC (mitochondrial apoptosis-induced channel) 1 in the outer membranes of...

Comparative Ab initio Treatment (Hartree-Fock, Density-Functional Theory, MP2 and Quadratic Configuration Interactions) of the Cycloaddition of Phosphorus Ylides with Formaldehyde

October 12, 2021

Author(s)

A A. Restrepo-Cossio, Carlos A. Gonzalez, F Mari

In this study we describe the results of the application of several ab initio methods to the reactions of four unstabilized ylides (H[d3]P=CH[d2], H[d2]MeP=CH...

An EPMA Study of KNbO₃ and NaNbO₃ Single Crystals - Potential Reference Materials for Quantitative Microanalysis

October 12, 2021

Author(s)

Z Samardzija, S Bernik, M Ceh, Ryna B. Marinenko, B Malic

Single crystals of KNbO 3 and NaNbO 3 were selected from the limited number of suitable alkali compounds that are available and evaluated as possible reference...

Electronic Structure Effects on the Formation and the Stability of Suspended Transition Metal Monatomic Chains

October 12, 2021

Author(s)

A Hasmy, Luis C. Rincon, R M. Hernandez, V Mujica, M Marquez, Carlos A. Gonzalez

In spite of the intense research activities devoted to the study of the achieved thinner wire (a suspended linear monatomic chain (1-19)), the high stability...

Reference Gauging System for a Small-Scale Liquid Hydrogen Tank

October 12, 2021

Author(s)

N T. Van Dresar, James D. Siegwarth

A system to accurately weigh the fluid contents of a small-scale liquid hydrogen test tank has been experimentally verified. It is intended for use as a...

Manganese-Enhanced Magnetic Resonance Microscopy of Mineralization

October 12, 2021

Author(s)

I Chesnick, T Todorov, J M. Centeno, Dale Newbury, John A. Small, K Potter

Paramagnetic manganese (II) can be employed as a calcium surrogate to enhance the sensitivity of the magnetic resonance microscopy (MRM) technique to the...

Recovery of Forming Gas Damaged Pb(Nb,Zr,Ti)O₃ Capacitors

October 12, 2021

Author(s)

S Aggarwal, S R. Perusse, C J. Kerr, R Ramesh, D B. Romero, J T. Evans, L Boyer, J Velasquez

We report on the recovery of fully integrated Pb(Nb,Zr,Ti)O 3 ferroelectric capacitors damaged during forming gas (4% H 2, balance N 2) annealing. In such...

Application of the Hough Transform to Electron Energy-Loss Spectrum-Line Acquisition

October 12, 2021

Author(s)

J H. Scott, David S. Bright

We present a procedure based on the linear Hough transform for visualizing and quantitatively measuring the tilt alignment of spectrum-line datasets. By...

Phospholipid Bilayer Islands on Ethanol Painted, Mixed Alkylthiol Supported Membranes

October 12, 2021

Author(s)

John T. Woodward IV, John T. Elliott

Determination of Sulfur in Biodiesel by XRF Using the Gravimetric Standard Addition Method

October 12, 2021

Author(s)

Lydia Baker, William R. Kelly, William F. Guthrie

The sulfur content of three biodiesels samples was determined XRF using a calibration curve based on petroleum-based diesel SRMs and by the standard addition...

The Thermodynamic Properties of 2,3-Dihydrobenzo[b]thiophene

October 12, 2021

Author(s)

W V. Steele, Robert D. Chirico, Anh D. Nguyen, S E. Knipmeyer

Measurements leading to the calculation of the standard thermodynamic properties for gaseous 2,3-dihydrobenzo[b]thiophene (ChemicalAbstracts registry number...

Systematic Study of Cancellation of Errors in the Benzene Dimer Interaction Energy

October 12, 2021

Author(s)

Ines Gonzalez, Stephen L. Garrison, M Marquez, Carlos A. Gonzalez, E C. Lim

We present a broadly applicable method or diagnostic for the appropriateness of the counterpoise correction and illustrate its value via calculations on the...

Quantitative Surface Characterization of DNA Immobilized on Gold

October 12, 2021

Author(s)

D Y. Petrovykh, H Y. Kimura-Suda, L J. Whitman, Michael J. Tarlov

We describe the complementary use of x-ray photoelectron spectroscopy (XPS) and fourier transform infrared (FTIR) spectroscopy to quantitatively characterize...

Controllable Catastrophe X-Ray Focusing

October 12, 2021

Author(s)

S M. Durbin, Terrence J. Jach, S. Kim, J. A. Aust

The interaction of waves with inhomogeneous media leads to the natural focusing of light, the channelling of waves into stable caustics such as the pattern of...

High-Resolution Structural Study of Zinc Ion Incorporation at the Calcite Cleavage Surface

October 12, 2021

Author(s)

L Cheng, N Sturchio, Joseph Woicik, K Kemner, P Lyman, Michael Bedzyk

X-ray standing wave triangulation and surface extended X-ray absorption fine structure spectroscopy were used to determine the atomic-scale structure of the Zn...

Crystal Structure of Escherichia coli Protein ybgI

October 12, 2021

Author(s)

Jane E. Ladner, G Obmolova, A Teplyakov, P P. Khil, R D. Camerini-Otero, G L. Gilliland

The crystal structure determination of E. coli protein ybgI was undertaken as part of a structural genomics effort (http://s2f.carb.nist.gov) in order to assist...

Benchmark Gauging System for a Small-Scale Liquid Hydrogen Tank

October 12, 2021

Author(s)

N T. Van Dresar, James D. Siegwarth

A system to accurately weigh the fluid contents of a small-scale liquid hydrogen test tank has been experimentally verified. It is intended for use as a...

Accelerator Mass Spectrometry Analysis of Carbonaceous Aerosols Captured in High Alpine Snow

October 12, 2021

Author(s)

R H. Weissenbok, Lloyd A. Currie, C Grollert, W Kutschera, J L. Marolf, A Priller, H Puxbaum, William N. Rom, P Steier

The capability for Accelerator Mass Spectrometry (AMS) to perform submilligram 14C measurements has considerable implications for environmental carbon research...

Optical Spectroscopy and Single-Molecule Microscopy Combined to Study the Conformation of Confined Polymers

October 12, 2021

Author(s)

B. Akerman, Kenneth D. Cole

Optical microscopy is a powerful tool to study the global behavior of individual polymers, which we here combine with optical spectroscopy to study the...