Journals

ADAPTING OECD AQUATIC TOXICITY TESTS FOR USE WITH MANUFACTURED NANOMATERIALS: KEY ISSUES, CONSENSUS RECOMMENDATIONS, AND DATA GAPS

July 16, 2015

Author(s)

Elijah J. Petersen, Alan Kennedy, Greg Goss, Ho Kay, Jamie Lead, Shannon Hanna, Kerstin Hund-Rinke, Brian Mader, Nicholas Manier, Pascal Pandard, Edward Salinas, Kathrin Schwirn, Doris Voelker

The unique or enhanced properties of manufactured nanomaterials (MNs) suggest that their use in nano-enabled products will continue to increase in the future...

Impact of recent change in NIST standard for 18F on the relative response of 68Ge-based mock syringe dose calibrator standards

July 16, 2015

Author(s)

Brian E. Zimmerman, Denis E. Bergeron, Jeffrey T. Cessna

As a result of a recent change in the National Institute of Standards and Technology (NIST) activity standard for 18F, we have determined new relative response...

Kinetics of the Reactions of H and CH3 with n-Alkanes: Experiments with n-Butane and a Reevaluation Based on a Combustion Model Reaction Network Analysis

July 16, 2015

Author(s)

Jeffrey A. Manion, David A. Sheen, Iftikhar A. Awan

Presented is a combined experimental and modeling study of the kinetics of the reactions of H and CH3 with n-butane, a representative aliphatic fuel...

Effect of Vapor Cell Geometry on Rydberg Atom-based Radio-frequency Electric Field Measurements

July 15, 2015

Author(s)

Christopher L. Holloway, Joshua A. Gordon

A new approach to detect absolute radio-frequency (RF) electric fields (E-fields) that uses Rydberg atoms at room temperature in vapor cells has recently been...

Formic Acid oxidation on platinum- a simple mechanistic study

July 15, 2015

Author(s)

Kathleen A. Schwarz, Ravishankar Sundararaman, Thomas P. Moffat, Thomas C. Allison

The oxidation of organic acids on noble metal sur-faces is of importance for industrial processes and of academic interest, but the basic reaction mechanisms...

Experimental Study of Thermophysical Properties and Nanostructure of Self-Assembled Water/Polyalphaolefin Nanoemulsion Fluids

July 15, 2015

Author(s)

Jiajun Xu, Boualem Hammouda, Fangyu Cao, Bao Yang

In this study, the nanostructures and thermophysical properties (thermal conductivity, viscosity and specific heat) of one new type of nanostructured heat...

Mass spectrometry of analytical derivatives. 1. Cyanide cations in the spectra of N-alkyl-N-perfluoroacyl-alpha-amino acids and their methyl esters

July 15, 2015

Author(s)

Nino G. Todua, Kirill V. Tretyakov, Anzor I. Mikaia

The central mission for the development of the NIST/NIH/EPA mass spectral library (The Library) is the acquisition of reference GC-MS data for important...

Leveraging the Potential of Cloud Security Service-Level Agreements through Standards

July 15, 2015

Author(s)

Jesus Luna, Neeraj Suri, Michaela Iorga, Anil Karmel

This article takes a fresh view on cloud security by analyzing, from the risk management perspective, the specification of security in Cloud Service Level...

Candidate Reference Measurement Procedure for the Determination of 24R,25-Dihydroxyvitamin D3 in Human Serum using Isotope-Dilution Liquid Chromatography-Tandem Mass Spectrometry

July 14, 2015

Author(s)

Susan Tai, Michael A. Nelson

The two major forms of vitamin D, vitamin D3 and vitamin D2, are metabolized in the liver through hydroxylation to 25-hydroxyvitamin D species, and then further...

Spherical Resonator for Vapor-Phase Speed of Sound and Measurements of 1,1,1,2,2,3,3-heptafluoro-3-methoxypropane (RE347mcc) and trans-1,3,3,3-tetrafluoropropene [R1234ze(E)]

July 14, 2015

Author(s)

Richard A. Perkins, Mark O. McLinden

We describe an apparatus to measure the speed of sound of gas samples at temperatures from 265 K to 500 K with pressures up to 40 MPa. The speed of sound is...

SIMULATION-BASED DESIGN CONCEPT EVALUATION FOR AMBULANCE PATIENT COMPARTMENTS

July 14, 2015

Author(s)

Deogratias Kibira, Yung-Tsun T. Lee, Jennifer L. Marshall, Allison Barnard Feeney, Larry Avery, Allie Jacobs

To address the inadequacy of existing standards regarding interior layout design, the Department of Homeland Security (DHS) Science and Technology Directorate...

Density Functional Theory Meta-GGA+U Study of Water Incorporation in the Metal Organic Framework Material Cu-BTC

July 14, 2015

Author(s)

Eric J. Cockayne, Eric B. Nelson

Water absorption in the metal-organic framework (MOF) material Cu-BTC, up to a concentration of 3.5 H2O per Cu ion, is studied via density functional theory at...

Using Indentation to Quantify Transport Properties of Nanophase Segregated Polymer Membranes

July 14, 2015

Author(s)

Eric Davis, Nichole Nadermann, Kirt A. Page, Christopher Stafford, Edwin Chan

Heterogeneous, nanophase segregated polymers are ubiquitous in technologies such as fuel cells and batteries, water purification, and drug delivery, where the...

Fractionation and characterization of high aspect ratio gold nanorods using asymmetric-flow field flow fractionation and single particle inductively coupled plasma mass spectrometry

July 14, 2015

Author(s)

Thao M. Nguyen, Jingyu Liu, Vincent A. Hackley

Development of methods for the in situ fractionation and characterization of high aspect ratio (AR) gold nanorods (GNRs) is a rapidly growing area of interest...

Spin Waves and Spatially Anisotropic Exchange Interactions in the S = 2 Stripe Antiferromagnet Rb_0.8Fe_1.5S₂

July 13, 2015

Author(s)

Meng Wang, P. Valdivia, Ming Yi, J. X. Chen, W. L. Zhang, R. A. Ewings, T. G. Perring, Yang Zhao, Leland Harriger, Jeffrey W. Lynn, E. Bourret-Courchesne, Pengcheng Dai, D. H. Lee, D. X. Yao, R. J. Birgeneau

An inelastic neutron scattering study of the spin waves corresponding to the stripe antiferromagnetic order in insulating Rb 0.8Fe 1.5S 2 throughout the...

An Itinerant Antiferromagnetic Metal Without Magnetic Constituents

July 13, 2015

Author(s)

E. Svanidze, Jiakui K. Wang, Tiglet Besara, L. Liu, Qingzhen Huang, T. Siegrist, Benjamin Frandsen, Jeffrey W. Lynn, Andriy H. Nevidomskyy, Monica Barbara Gamza, M.C. Aronson, Y.J. Uemura, E. Morosan

Itinerant and local moment magnetism have substantively different origins, and require distinct theoretical treatment. A unified theory of magnetism has long...

Review of superconducting transition-edge sensors for x-ray and gamma-ray spectroscopy

July 13, 2015

Author(s)

Joel Ullom, Douglas Bennett

We present a review of emerging x-ray and gamma-ray spectrometers based on arrays of superconducting Transition-Edge Sensors (TESs). Special attention will be...

Synthesis and Characterization of Bournonite PbCuSbS3 Nanocrystals

July 10, 2015

Author(s)

Kaya Wei, Joshua Martin, James Salvador, George S. Nolas

PbCuSbS3 nanocrystals were synthesized for the first time by a colloidal synthesis route and characterized by powder X-ray diffraction (XRD), transmission...

Compact X-ray and Extreme-Ultraviolet Light Sources

July 10, 2015

Author(s)

Lahsen Assoufid, Uwe Arp, Patrick Naulleau, Sandra Biedron , William Graves

Bringing the brightness and power of vast synchrotron and free-electron laser sources to the scale of the lab and clinic marks an important next frontier—and...

Integrated path detection of CO2 and CH4 using a waveform driven electro-optic single sideband laser source

July 10, 2015

Author(s)

Gerd A. Wagner, Stephen Maxwell, David F. Plusquellic

Integrated path concentrations of ambient levels of carbon dioxide and methane have been measured during nighttime periods at NIST, Boulder (CO, USA), using a...

Synthesis, Crystal Structure, and Transport Properties of Quaternary Tetrahedral Chalcogenides

July 9, 2015

Author(s)

Yongkwan Dong, Lukasz Wojtas, Joshua Martin, George S. Nolas

Quaternary chalcogenides with tetrahedral zinc-blend structure types continue to be of interest for thermoelectrics applications. We report on the synthesis...

Developing Microwave Photonic Temperature Sensors

July 9, 2015

Author(s)

John S. Quintavalle, James Filla, Gregory F. Strouse, Zeeshan Ahmed

In recent years there has been considerable interest in exploiting the temperature dependence of sapphire whispering gallery mode frequency to develop a...

Statistically background-free, phase-preserving parametric up-conversion with faint light

July 9, 2015

Author(s)

Yu-Hsiang Cheng, Tim O. Thomay, Glenn S. Solomon, Alan L. Migdall, Sergey Polyakov

We demonstrate phase preservation in a frequency up-conversion process at the single-photon level. This phase preservation enables the applications of frequency...

Optimization of Next-Generation Sequencing Informatics Pipelines for Clinical Laboratory Practice

July 8, 2015

Author(s)

Justin M. Zook, Amy Gargis, Lisa Kalman, Ira Lubin, Marc L. Salit

We direct your readers' attention to the principles and guidelines (see Supplementary Guidelines) developed by the Next-generation Sequencing: Standardization...

Effect of Heat Pump Commissioning Faults on Energy Use in a Slab-on-Grade Residential House

July 8, 2015

Author(s)

Piotr A. Domanski, Hugh Henderson, William V. Payne

This study seeks to develop an understanding of the effect of these common faults on the energy consumption of a heat pump installed in a single-family, slab-on...

Thermodynamic Properties of trans-1-chloro-3,3,3-trifluoropropene (R1233zd(E)): Vapor Pressure, (p, ¿, T) Behavior, and Speed of Sound Measurements and Equation of State

July 8, 2015

Author(s)

Mar?a E. Mond?jar, Mark O. McLinden, Eric Lemmon

We present experimental measurements of the density, speed of sound, and vapor pressure of trans-1-chloro-3,3,3-trifluoropropene, which is also known as R1233zd...

Uncovering the Structure of Nafion-SiO2 Hybrid Ionomer Membranes for Prospective Large-Scale Energy Storage Devices

July 8, 2015

Author(s)

Eric Davis, Jenny J. Kim, Vladimir Oleshko, Kirt A. Page, Christopher Soles

Best Practices for Evaluating Single Nucleotide Variant Calling Methods for Microbial Genomics

July 7, 2015

Author(s)

Nathanael D. Olson, Steven P. Lund, Rebecca Colman, Jeffery T. Foster, Jason W. Sahl, James M. Schupp, Paul Keim, Jayne B. Morrow, Marc L. Salit, Justin M. Zook

Innovations in sequencing technologies have allowed biologists to make incredible advances in understanding biological systems. As experience grows, researchers...

Timescale of Silver Nanoparticle Transformation in Neural Cell Cultures Impacts Measured Cell Response

July 7, 2015

Author(s)

Stephanie L. Hume, Ann Chiaramonti Debay, Katherine P. Rice, Rani K. Schwindt, Robert I. MacCuspie, Kavita Jeerage

Serum protein concentration and ionic strength are important factors in nanoparticle transformation within cell culture environments. However, silver...

Quantum-correlated photon pairs generated in commercial 45 nm complementary metal-oxide semiconductor microelectronics

July 7, 2015

Author(s)

Cale M. Gentry, Jeff Shainline, Mark W. Wade, Martin Stevens, Shellee D. Dyer, Xiaoge Zeng, Fabio Pavanello, Thomas Gerrits, Sae Woo Nam, Richard Mirin, Milos A. Popovic

Correlated photon pairs are a fundamental component of quantum photonic systems. While pair sources have previously been integrated on silicon chips in custom...