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Displaying 3526 - 3550 of 3844

Reduction of hydrogen cyanide concentrations and acute inhalation toxicity from flexible polyurethane foam combustion products by the addition of copper compounds. Part III::the effect of copper additives on the flammability characteristics of flexible po

January 1, 1990

Author(s)

B C Levin, E Braun, J R Shields, D Lowe

… Reduction of hydrogen cyanide concentrations and acute inhalation toxicity …

Disclosures on a transrotor engine, high temperature platinum resistance thermometer, dynamic analog correlation system, and combination metering and safety valve for filling sonde ballons with hydrogen. Editors::David Robbins and Alvin J. Englert.

January 1, 1967

Author(s)

David Robbins

… metering and safety valve for filling sonde ballons with hydrogen. Editors::David Robbins and Alvin J. Englert. …

Determining Site-Specific Glycan Profiles of Recombinant SARS-CoV-2 Spike Proteins from Multiple Sources

August 30, 2023

Author(s)

Meghan Burke Harris, Yi Liu, Concepcion Remoroza, Yuri Mirokhin, Sergey Sheetlin, Dmitrii V. Tchekhovskoi, Guanghui Wang, Xiaoyu (Sara) Yang, Stephen E. Stein

… used along with variable energy fragmentation, followed by ion trap confirmation. This enables a detailed examination of …

Inferring the nominal molecular mass of an analyte from its electron ionization mass spectrum

August 23, 2023

Author(s)

Arun Moorthy, Anthony J. Kearsley, William Mallard, William E. Wallace, Stephen E. Stein

… (PIM) attempts to quantify the likelihood that a molecular ion peak is contained in the mass spectrum, whereas the …

AIomics: Exploring More of the Proteome Using Mass Spectral Libraries Extended by Artificial Intelligence

May 26, 2023

Author(s)

Lewis Geer, Joel Lapin, Douglas Slotta, Tytus Mak, Stephen E. Stein

The unbounded permutations of biological molecules, including proteins and their constituent peptides, present a dilemma in identifying the components of complex biosamples. Sequence search algorithms used to identify peptide spectra can be expanded to

MAKE IT "SNPPY" - UPDATES TO SRM 2391D: PCR-BASED DNA PROFILING STANDARD

December 16, 2022

Author(s)

Becky Steffen, Erica Romsos, Kevin Kiesler, Lisa Borsuk, Katherine Gettings, Peter Vallone

… and Kintelligence Kits. In addition, three community Ion AmpliSeq panels from Thermo Fisher (MH-74 Plex, VISAGE, …

Spectral Trends in GC-EI-MS Data Obtained from the SWGDRUG Library and Literature: A Potential Resource for Identification of Unknown Compounds

October 24, 2022

Author(s)

William Feeney, Arun Moorthy, Edward Sisco

Rapid identification of new or emerging psychoactive substances remains a critical challenge in drug chemistry laboratories. Current analytical protocols are well designed for confirmation of known substances yet present struggles when potentially new

Mass Spectral Library Methods for Analysis of Site-Specific N-Glycosylation: Application to Human Milk Proteins

September 16, 2022

Author(s)

Concepcion Remoroza, Meghan Burke Harris, Xiaoyu (Sara) Yang, Sergey Sheetlin, Yuri Mirokhin, Sanford Markey, Dmitrii V. Tchekhovskoi, Stephen E. Stein

… (stepped) collision dissociation fragmentation followed by ion-trap fragmentation. Spectra are annotated using MS_Piano, …

Measurement Challenges for Scaling Superconductor-based Quantum Computers

June 23, 2022

Author(s)

Pete Hopkins, Manuel Castellanos Beltran, John Biesecker, Paul Dresselhaus, Anna Fox, Logan Howe, David Olaya, Adam Sirois, Dylan Williams, Samuel P. Benz, Alirio De Jesus Soares Boaventura, Justus Brevik

Global investment in the research and development of quantum information systems by industry, government, and academic institutions continues to accelerate and is expected to reach over $16B by 2027 [1]. Systems based on optical photons, atoms or ions

Performance assessment of DNA sequencing platforms in the ABRF Next-Generation Sequencing Study

September 9, 2021

Author(s)

Justin Zook, Jonathan Foox, Christopher E. Mason

… (HiSeq/NovaSeq/paired-end 2 × 250-bp chemistry, Ion S5/Proton, PacBio circular consensus sequencing (CCS), …

Rapid Identification of Synthetic Routes to Functional Metastable Phases Using X-Ray Probed Laser Anneal Mapping (XPLAM) Time-Temperature Quench Maps

June 6, 2021

Author(s)

Robert T. Bell, Peter A. Beaucage, Marc J. Murphy, Aine Connolly, David Ginley, Ulrich Wiesner, R. B. Van Dover, Michael O. Thompson

… including the δ-phase with the exceptionally high oxygen ion conductivity. We demonstrate the first annealing-driven …

Discriminated properties of PEI functionalized gold nanoparticles (Au-PEIs) predetermined by synthetic routes of ligand exchange and reduction processes: Paths and Fates

June 17, 2019

Author(s)

Tae Joon Cho, John M. Pettibone, Vincent A. Hackley

Polyethyleneimine (PEI) functionalized AuNPs (Au-PEIs) are have potent as positively charged gold nanoparticles (AuNPs) for nano-medicinal applications, due to their cationic surfaces that promote cellular uptake and gene transfection. 1-6 1-6 1-61-6 Au

The Role of Lipid Interactions in Accurate Simulations of the alpha-hemolysin Transporter

September 18, 2018

Author(s)

Nicholas B. Guros, Arvind Balijepalli, Jeffery B. Klauda

… which when disrupted creates an additional constriction to ion flow that decreases the channel current below …

Strategies and Considerations for the Trace Detection of Fentalogs

October 26, 2017

Author(s)

Edward Sisco

… analysis in real time mass spectrometry (TD-DART-MS) and ion mobility spectrometry (IMS) while also providing context …

Enhanced Stability of Pt-TiO2-CNT Heterostructure Composite Cathodes for Li-O2 Batteries Studied by High-Resolution AEM

November 14, 2016

Author(s)

Vladimir P. Oleshko

… is almost an order of magnitude higher than for any Li-ion batteries (~380 Wh kg-1). Combined with the ability to …

Ultraviolet/Ozone as a tool to control grafting density in surface-initiated controlled-radical polymerizations via ablation of bromine

July 21, 2016

Author(s)

Richard J. Sheridan, Sara V. Orski, Shinichiro Muramoto, Christopher M. Stafford, Kathryn L. Beers

… We collected complementary time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron …

Unparalleled Lithium and Sodium Superionic Conduction in Solid Electrolytes with Large Monovalent Cage-like Anions

October 8, 2015

Author(s)

Wan Si NMN Tang, Atsushi Unemoto, Wei Zhou, Vitalie Stavila, Motoaki Matsuo, Hui Wu, Shin-Ichi Orimo, Terrence J. Udovic

… rechargeable batteries. We recently revealed a novel fast-ion-conducting sodium salt, Na 2 B 12 H 12 , which contains …

Simulation Studies of Methods to Delay Corrosion and Increase Service Life for Cracked Concrete Exposed to Chlorides

February 18, 2015

Author(s)

Scott Z. Jones, Nicos Martys, Yang Lu, Dale P. Bentz

The ingress of chlorides in reinforced concrete leads to the onset of rebar corrosion and eventually compromises a structures integrity. To extend its service life and improve safety, it is crucial to develop sound repair and rehabilitation strategies for

Structure and Stability of Phospholipid Bilayers Hydrated by a Room-Temperature Ionic Liquid/Water Solution: a Neutron Reflectometry Study

October 23, 2014

Author(s)

Antonio Benedetto, Frank Heinrich, Miguel A. Gonzalez, Giovanna Fragneto, Erik Watkins, Pietro Ballone

Neutron reflectometry measurements (NR) have been carried out to probe the structure and stability of two model bio-membranes consisting of POPC and DMPC phospholipid bilayers hydrated by water solutions of two prototypical room-temperature ionic liquids

Errors in Variables and Ridge Regression for Structural Data from Synthesized Amorphous Calcium Phosphate

September 19, 2014

Author(s)

Adam L. Pintar

As vertebrates form mineralized tissues such as bone and teeth they use amorphous mineral precursors to store ions for use as needed. One such precursor is thought to be amorphous calcium phosphate (ACP), but this idea has lately come into question because

Performance Benchmarking and Intensity Calibration of a Widefield Fluorescence Microscope Using Fluorescent Glass

August 11, 2014

Author(s)

Michael W. Halter, Elianna Bier, Paul C. DeRose, Gregory A. Cooksey, Steven J. Choquette, Anne L. Plant, John T. Elliott

… two different materials as the physical artifact, uranyl-ion-doped glass and Schott 475 GG filter glass. Both are …

Synapsable quadruplex-mediated fibers

May 3, 2013

Author(s)

Veronika A. Szalai, Miguel A. Mendez

We have fabricated and characterized a novel DNA based nanofiber created by synergistic self-assembly of guanine quadruplex (Hoogsteen base pairing) and double-stranded DNA (Watson-Crick base pairing). The assembly of our nanofibers occurs in several steps

Microwave-Assisted Extraction and Quantitative LC/ID-MS Measurement of Total Choline and Free Carnitine in Food Standard Reference Materials

December 4, 2012

Author(s)

Melissa M. Phillips, Lane C. Sander

Choline and carnitine are quaternary amines that are synthesized in the body or consumed through the diet. Choline is critical for cell membrane structure and function and in synthesis of the neurotransmitter acetylcholine. Carnitine mediates cellular

Organophosphate and Phthalate Esters in Standard Reference Material 2585 "Organic Contaminants in House Dust"

November 8, 2011

Author(s)

Stephen A. Wise, Caroline Bergh, Giovanna Luongo, Conny Ostman

… gas chromatography - tandem mass spectrometry in positive ion chemical ionization mode. Seven phthalates were detected …

Multi-level Spectroscopy of Two-Level Systems Coupled to a dc SQUID Phase Qubit

April 7, 2010

Author(s)

T. A. Palomaki, S. K. Dutta, R M. Lewis, A J. Przybysz, B. K. Cooper, H. Kwon, J. R. Anderson, C. J. Lobb, F. C. Wellstood, Eite Tiesinga

We report spectroscopic measurements of discrete two-level systems (TLSs) coupled to a dc SQUID phase qubit with a 16 μm2 area Al/AlOx/Al junction. Applying microwaves in the 10 GHz to 11 GHz range, we found eight avoided level crossings with splitting

Advanced communications
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--Biosurveillance
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-Cell measurements
-Engineering / synthetic biology
--Biofabrication
--Cell-free systems
--Genome engineering
--Protein engineering
-Gene delivery systems
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Buildings and Construction
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Chemistry
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