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Displaying 17176 - 17200 of 17291

DNA Extraction and DNA Damage Measurement in the Nematode Caenorhabditis elegans

November 1, 2015
Author(s)
Leona D. Scanlan, Pawel Jaruga, Sanem Hosbas Coskun, Jamie L. Almeida, David N. Catoe, Jennifer McDaniel, Miral M. Dizdar
Little is known about endogenous DNA damage in the nematode. In this work, we standardized the growth of the nematode in two different growth media (axenic CeHR supplemented with 20% milk and S-basal with E. coli), and developed a novel high-salt, phenol

CCQM Pilot Study P-140; Quantitative Surface Analysis of Multi-Element Alloy Films

October 1, 2015
Author(s)
David S. Simons, Christopher W. Szakal, William A. Osborn, Kyung Joong Kim
A pilot study for the quantitative surface analysis of multi-element alloy films has been performed by the Surface Analysis Working Group (SAWG) of the Consultative Committee for Amount of Substance (CCQM). The aim of this pilot study is to ensure the

Polarized 3HE Spin Filters for Neutron Science

February 12, 2014
Author(s)
Thomas R. Gentile, Wei-Chen N. Chen
… neutron spin filters at the National Institute of Standards and Technology (NIST), Center for Neutron Research …

OBSERVATIONS ON THE GENERATION OF TOXIC PRODUCTS IN THE ISO/TS 19700 CONTROLLED EQUIVALENCE RATIO TUBE FURNACE AND THE CONTROLLED ATMOSPHERE CONE CALORIMETER

June 24, 2013
Author(s)
Nathan D. Marsh, Richard G. Gann, John R. Shields, Marc R. Nyden
Efforts are underway in several research groups to adapt existing flammability test methods for the determination of yields of toxic compounds such as CO, HCN, and HCl. These include the NFPA 269 / ASTM E 1678 radiant furnace apparatus, the ISO/TS 19700

A Comparison of Predicted to Measured Photovoltaic Module Performance

March 1, 2009
Author(s)
Arthur H. Fanney, Brian P. Dougherty, Mark W. Davis
Computer simulation models to accurately predict the electrical performance of photovoltaic modules are essential. Without such models, potential purchasers of photovoltaic systems have insufficient information to judge the relative merits and cost

Development of a Color Quality Scale

February 8, 2006
Author(s)
Wendy L. Davis, Yoshihiro Ohno
A new metric for evaluating the color quality of light sources is being developed at NIST, in close contact with the lighting industry and the CIE. The current CIE Color Rendering Index (CRI) is outdated and has several known deficiencies. The CRI only

Thermodynamics of Reactions Catalyzed by Anthranilate Synthase

February 14, 2000
Author(s)
W M. Byrnes, Robert N. Goldberg, Marcia J. Holden, M P. Mayhew, Yadu D. Tewari
Microcalorimetry and high performance liquid chromatography have been used to conduct a thermodynamic investigation of reactions catalyzed by anthranilate synthase, the enzyme located at the branch point in the chorismate biosynthetic pathway that leads to

Absolute Intensities for the O 2 1.27 ym Continuum Absorption

December 1, 1999
Author(s)
B Mate, C Lugez, Gerald T. Fraser, Walter J. Lafferty
Collision-induced absorption coefficients for the 1.27 υm band of O 2 have been measured at a resolution of 0.5 cm -1 and an optical pathlength of L = 84 m using a Fourier-transform spectrometer and 2 m long White-type multipass absorption cell. Spectra
Displaying 17176 - 17200 of 17291
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