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Displaying 751 - 775 of 1612

NIST Micronutrients Measurement Quality Assurance Program Winter 2010 Comparability Studies: Results for Round Robin LXVII Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 32 Ascorbic Acid in Human Serum

August 2, 2013
Author(s)
David L. Duewer, Jeanice M. Brown Thomas
The National Institute of Standards and Technology coordinates the Micronutrients Measurement Quality Assurance Program (MMQAP) for laboratories that measure fat- and water-soluble vitamins and carotenoids in human serum and plasma. This report describes

Identification and Quantification of DNA Repair Protein Apurinic/Apyrimidinic Endonuclease 1 (APE1) in Human Cells by Liquid Chromatography/Isotope-Dilution Tandem Mass Spectrometry

July 29, 2013
Author(s)
Guldal Kirkali, Pawel Jaruga, Prasad T. Reddy, Alessandro Tona, Li Mengxia, David M. Wison III, M Miral Dizdar, Bryant C. Nelson
Unless repaired, DNA damage can drive mutagenesis or cell death. DNA repair proteins may therefore be used as biomarkers in disease detection or therapeutic response estimation. Thus, the accurate measurement of DNA repair protein expression is of

Challenges of the Changing Robot Markets

July 19, 2013
Author(s)
Gurvinder S. Virk, Carol Herman, Roger V. Bostelman, Tamas Haidegger
Service robots are becoming an integrated part of daily life, entering even the most complex scenarios, yet at a slower pace than previously anticipated. This paper presents an overview of the changing area of robotics and the new challenges being faced

Standard Reference Materials for Medical CT

June 27, 2013
Author(s)
Zachary H. Levine, Huaiyu H. Chen-Mayer, Adam L. Pintar, Daniel S. Sawyer
NIST Standard Reference Materials 2087 and 2088 for medical computed tomography (CT) have become available. The materials allow CT reconstructions to be tied to the International System of Units in length, density, and mass attenuation coefficient.

Anchor Molecules Affect Structure and Properties of Tethered Bilayer Lipid Membranes. Unsaturation in the Alkyl Chains.

June 7, 2013
Author(s)
David J. Vanderah, Rima Budvytyte, Gintaras Valincius, Gediminas Niaura, Vladislava Voiciuk, Mindaugas Mickevicius, Haw-Zan Goh, Hilary Stauffer, Frank Heinrich, Siddharth Shenoy
The self-assembled monolayers (SAMs) of the new lipidic anchor molecule, Z 20-(Z-octadec-9-enyloxy)-3,6,9,12,15,18,22-heptaoxatetracont-31-ene-1-thiol (HC18), and mixed HC18/-mercaptoethanol (ME) SAMs were studied by spectroscopic ellipsometry, contact
Displaying 751 - 775 of 1612
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