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Displaying 26 - 50 of 74310

Advancing Methodologies for Hurricane Disaster Research Using Social Media Data

May 29, 2024
Author(s)
Emina Herovic, Caerwyn Hartten, Emily Walpole, Katherine Johnson, Cameron Busser
The National Institute of Standards and Technology's (NIST) investigations of disasters and failures that affect the United States including devastating hurricanes like Hurricane Maria (NIST, 2023), require the assessment of risk communication, especially

Identification of Candidate Protein Biomarkers Associated with Domoic Acid Toxicosis in Cerebrospinal Fluid of California Sea Lions (Zalophus californianus)

May 28, 2024
Author(s)
Gautam Ghosh, Ben Neely, Alison Bland, Emily Whitmer, Cara Field, Padraig Duignan, Michael Janech
Since 1998, California sea lion (Zalophus californianus) stranding events associated with domoic acid toxicosis have consistently increased. Currently there are no practical non-lethal clinical tests for the diagnosis of domoic acid toxicosis (DAT) that

Optical n(p, T_90) measurement suite 2: H_2O and D_2O

May 28, 2024
Author(s)
Patrick Egan, Yuanchao Yang
A suite of measurements of refractive index n(p, T_90) is reported for gas phase ordinary water H_2O and heavy water D_2O. The methodology is optical refractive index gas metrology, operating at laser wavelength 633 nm and covering the range (293 T_90 43

Letter to the editor: Unit one is intrusive

May 24, 2024
Author(s)
David W. Flater
The SI brochure's treatment of quantities that it regards as dimensionless, with the associated unit one, requires certain physical quantities to be regarded as simply numbers. The resulting formal system erases the nature of these quantities and excludes

Mixture effects of PFAS on embryonic and larval sheepshead minnows (Cyprinodon variegatus)

May 22, 2024
Author(s)
Philip Tanabe, Peter Key, Katy Chung, Emily Pisarski, Jessica Reiner, Alix Rodowa, Jason Magnuson, Marie DeLorenzo
Per- and polyfluoroalkyl substances (PFAS) are ubiquitous and persistent environmental contaminants originating from many everyday products. Perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) are two PFAS that are commonly found at high

Observation of a promethium complex in solution

May 22, 2024
Author(s)
Bruce D. Ravel, Darren Driscoll, Frankie White, SUBHAMAY PRAMANIK, Jeffrey Einkauf, Dmytro Bykov, Santanu Roy, Richard Mayes, Laetitia Delmau, Samantha Schrell, Thomas Dyke, April Miller, Matt Silveira, Silveira2 van Cleve, Roy Copping, Sandra Davern, Santa Jansone-Popova, Ilja Popovs, Alexander Ivanov
Lanthanide rare earth metals are ubiquitous in modern technologies, but we know little about chemistry of the 61st element, promethium (Pm), a lanthanide which is highly radioactive and inaccessible. Despite its significance, Pm has conspicuously been

Homogenization of Large Batch Frozen Materials Using the Palla-VM-KT Vibrating Mill

May 21, 2024
Author(s)
Debra Ellisor, Amanda Moors, Jennifer Hoguet, Jennifer Ness, Amanda Capuano, Olivia Franco
The Biospecimen Science Group at the National Institute of Standards and Technology (NIST) Biorepository has been responsible for the curation, maintenance, and preparation of biological specimens at cryogenic temperatures since 2002. The team's expertise

NIST's Engagement with CCQM Studies from 1992 to 2023: History and Performance

May 21, 2024
Author(s)
David L. Duewer, Christina Cecelski, Megan Cleveland, Nancy Lin, Katrice Lippa, Jacqueline L. Mann, John L. Molloy, Michael Nelson, James E. Norris, Kenneth W. Pratt, Sumona Sarkar, Hratch G. Semerjian, Robert L. Watters
This report documents the engagement and measurement performance of the National Institute of Standards and Technology (NIST) in studies coordinated by the Consultative Committee for Amount of Substance: Metrology in Chemistry and Biology (CCQM) from 1992

Fiscal Year 2023 Cybersecurity and Privacy Annual Report

May 20, 2024
Author(s)
Patrick D. O'Reilly, Kristina Rigopoulos
During Fiscal Year 2023 (FY 2023) – from October 1, 2022, through September 30, 2023 –the NIST Information Technology Laboratory (ITL) Cybersecurity and Privacy Program successfully responded to numerous challenges and opportunities in security and privacy

Parmesan: mathematical concept extraction for education

May 20, 2024
Author(s)
Jacob Collard, Valeria de Paiva, Eswaran Subrahmanian
Mathematics is a highly specialized domain with its own unique set of challenges. Despite this, there has been relatively little research on natural language processing for mathematical texts, and there are few mathematical language resources aimed at NLP

Simulating drifting fish aggregating device trajectories to identify potential interactions with endangered sea turtles

May 20, 2024
Author(s)
Lauriane Escalle, Joe Scutt Phillips, Jon Lopez, Jennifer Lynch, Hilario Murua, Sarah-Jeanne Royer, Yonat Swimmer, J Murua, Alex Sen Gupta, Victor Restrepo, Gala Moreno
Purse-seine fishers using drifting fish aggregating devices (dFADs), mainly built with bamboo, plastic buoys, and plastic netting, to aggregate and catch tropical tuna, deploy 46,000–65,000 dFADs per year in the Pacific Ocean. Some of the major concerns

Wireless Deployment Challenges in Construction: A 5G Strategy

May 20, 2024
Author(s)
Richard Candell, Mohamed Hany, Jing Geng, Karl Montgomery
In the construction context, integrating 5G networks presents numerous challenges. Tiis article explores deploying wireless communication networks within construction projects, introducing a comparison approach to assess deployment difficulty at each

Early Electroscopes at the National Bureau of Standards

May 17, 2024
Author(s)
Bert Coursey, Brian E. Zimmerman, Michael G. Mitch, Paul Frame
This report describes the use of five electroscopes used as national standards for radioactivity for the United States during the early 20th century. This set of instruments were used for the calibration of thousands of radium-226 sources used in medical
Displaying 26 - 50 of 74310