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Search Publications

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Displaying 151 - 175 of 524

Synthesis and Synchrotron X-ray characterization of two 2D Hoffman related compounds [Ni(p-Xylylenediamine)nNi(CN)4] and [Ni(p-tetrafluoroxylylenediamine)nNi(CN)4]

April 24, 2018
Author(s)
Winnie K. Wong-Ng, Jeffrey T. Culp, Daniel W. Siderius, Yu-Sheng Chen
Synchrotron X-ray single crystal structure studies of two closed 2D Hofmann-type related compounds, [Ni(p-Xylyenediamine)n-tetracyanonickelate] (abbreviated as Ni-pXdam) and [Ni(tetrafluoro-p-Xylyenediamine)n-tetracyanonickelate] (abbreviated as Ni-pXdamF4

Measured In-situ Mass Absorption Spectra for Nine Forms of Highly-absorbing Carbonaceous Aerosol

April 23, 2018
Author(s)
Christopher D. Zangmeister, Rian You, Elizabeth M. Lunny, Arne Jacobson, Mitchio Okumura, Michael R. Zachariah, James G. Radney
Mass absorption coefficient spectra were measured between λ = 500 nm and 840 nm for nine forms of highly-absorbing carbonaceous aerosol: five samples generated from gas-, liquid- and solid- fueled flames; spark-discharge fullerene soot; graphene and

NIST Standards for Measurement, Instrument Calibration, and Quantification of Gaseous Atmospheric Species

March 2, 2018
Author(s)
George C. Rhoderick, Michael E. Kelley, Walter R. Miller Jr., James E. Norris, Jennifer Carney, Lyn Gameson, Christina Cecelski, Cassie Goodman, Abneesh Srivastava, Joseph Hodges
There are many gas species present in the atmosphere that are associated with the earth’s climate. These compounds absorb and emit radiation, a process which is the fundamental cause of the greenhouse effect. The major greenhouse gases in the earth’s

Examining Heat Treatment for Stabilization of the Lipidome

February 16, 2018
Author(s)
John Bowden, Candice Z. Ulmer, Christina Jones, Tracey Johnston, Jeremy P. Koelmel, Timothy J. Garrett, Richard A. Yost
Aim: To confidently determine lipid-based biomarkers, it is important to minimize variation introduced during preanalytical steps. We evaluated reducing variation associated with lipid measurements in invertebrate sentinel species using a state-of-the-art

Counting Caenorhabditis elegans: Protocol Optimization and Applications for Population Growth and Toxicity Studies in Liquid Medium

January 17, 2018
Author(s)
Steven Lund, Sanem Hosbas Coskun, Monique Johnson, Christopher Sims, Elijah Petersen, John T. Elliott, Bryant C. Nelson, Leona D. Scanlan, Shannon K. Hanna, Karina Brignoni, Patricia Lapasett
The nematode Caenorhabditis elegans is used extensively in molecular, toxicological and genetics research. However, standardized methods for counting nematodes in liquid culture do not exist despite the wide use of nematodes and need for accurate

Halogenated natural products

December 29, 2017
Author(s)
Terry Bidleman, John Kucklick, Henrik Kylin, Robert Letcher, Liisa Jantunen, Fiona Wong
This chapter summarizes the occurrence and fate on HNPs in the arctic physical environment and accumulation processes and presence in arctic biota. Except for halocarbons, there have been few investigations of HNPs in polar environments. Discussions of HNP

Analysis of PFAAs in American alligators Part 1: Concentrations in alligators harvested for consumption during South Carolina public hunts.

November 29, 2017
Author(s)
Jessica Tipton, Louis J. Guillette, Benjamin B. Parrott, Thomas R. Rainwater, Jessica L. Reiner
Environmental contamination resulting from the production or release of harmful chemicals can lead to negative consequences for wildlife and human health. Perfluorinated alkyl acids (PFAAs) were historically produced as protective coatings for many

Tissue Distribution of Perfluoroalkyl Acids (PFAAs) and Health Status in Wild Mozambique Tilapia (Oreochromis mossambicus) from Loskop Dam, Mpumalanga, South Africa

November 29, 2017
Author(s)
Jacqueline T. Bangma, Jessica L. Reiner, Hannes Botha, Theresa M. Cantu, Marco Gouws, Matthew P. Guillette, Jeremy P. Koelmel, Wilmien Luus-Powell, Olivia Rynders, Joseph Sara, Willem J. Smit, John Bowden
This study collected male Mozambique tilapia (Oreochromis mossambicus) from Loskop Dam, Mpumalanga, South Africa in 2014 and 2016 to investigate the levels of 15 perfluoroalkyl acids (PFAAs) across six tilapia tissues. Nine of the 15 PFAAs were detected

Crystallography of Functional Materials (Editorial Comments)

November 15, 2017
Author(s)
Winnie K. Wong-Ng, Claudia J. Rawn
The goal of this special issue is to obtain new insights into the roles of crystallography in functional materials. This special issue consists of eight chapters illustrating the structure and property relationships, as well as applications of selected

Deriving global OH abundance and atmospheric lifetimes for long-lived gases: A search for the alternative reference gas for CH3CCl3.

November 3, 2017
Author(s)
Qing Liang, Martyn P. Chipperfield, Eric L. Fleming, Luke Abraham, Peter Braesicke, James B. Burkholder, John S. Daniels, Sandip Dhomse, Steven C. Hardiman, Charles H. Jackman, Douglas E. Kinnison, Stephen A. Montzka, Olaf Morgenstern, Archie McCulloch, Paul A. Newman, Vladimir L. Orkin, Giovanni Pitari, Matthew Rigby, Eugene Rozanov, Fiona Tummon, Guus J. Velders, Daniele Visioni
An accurate estimate of global hydroxyl radical (OH) abundance is important for projections of air quality, climate, and stratospheric ozone layer recovery. As atmospheric concentration of methyl chloroform (MCF), the commonly used reference gas for OH

Performance and Environmental Correction of a Low-Cost NDIR CO2 Sensor

July 3, 2017
Author(s)
Cory Martin, Ning Zeng, Anna Karion, Russell R. Dickerson, Xinrong Ren, Bari Turpie, Kristy Weber
Abstract. Non-dispersive infrared (NDIR) sensors are a low-cost way to observe carbon dioxide concentrations in ambient air, but their specified accuracy and precision are not sufficient for some scientific applications. An initial evaluation of six

Rapid and reliable steroid hormone profiling in Tursiops truncatus blubber using liquid chromatography tandem mass spectrometry (LC-MS/MS)

June 1, 2017
Author(s)
Ashley S. Boggs-Russell, Tracey B. Schock, Thomas M. Galligan, Wayne E. McFee, Jeanine S. Morey, Lori Schwacke, John R. Kucklick
Monitoring of marine mammal steroid hormone status using matrices alternative to blood is desirable due to the ability to remotely collect samples which minimizes stress. However, measurement techniques in alternative matrices such as blubber described to

The Indianapolis Flux Experiment (INFLUX): A test-bed for developing anthropogenic greenhouse gas emission measurements.

May 23, 2017
Author(s)
Ken Davis, Kevin Gurney, R. M. Hardesty, Shepson Paul, Colm Sweeney, Jocelyn Turnbull, James Whetstone, Anna Karion
The objective of the Indianapolis Flux Experiment (INFLUX) is to develop, evaluate and improve methods for measuring greenhouse gas (GHG) emissions from cities. INFLUX's scientific objectives are to quantify CO2 and CH4 emission rates at 1 km2 resolution

Correlations for the Viscosity and Thermal Conductivity of Ethyl Fluoride (R161)

May 17, 2017
Author(s)
Ch. M. Tsolakidou, Marc J. Assael, Marcia L. Huber, Richard A. Perkins
This paper presents new wide-ranging correlations for the viscosity and thermal conductivity of ethyl fluoride (R161) based on critically evaluated experimental data. The correlations are designed to be used with a recently published equation of state that

Perfluorinated Alkyl Acids in the Plasma of American Alligators (Alligator mississippiensis) from Florida and South Carolina

April 4, 2017
Author(s)
Jessica L. Reiner, John Bowden, Ian Christie, Matthew P. Guillette, Russell H. Lowers, Arnold Brunell, Phillip M. Wilkinson, Jacqueline T. Bangma, Thomas R. Rainwater, Louis J. Guillette Jr., Martin Jones
This study was the first to quantitate fourteen perfluoroalkyl acids (PFAAs) in 125 adult American alligators at twelve sites across the southeastern US. Of those fourteen PFAAs, nine were commonly detected. Males as a group (across all sites) showed a
Displaying 151 - 175 of 524