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Displaying records 81 to 90 of 381 records.
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81. Quantum Transduction of Telecommunications-band Single Photons from a Quantum Dot by Frequency Upconversion
Topic: Bioscience & Health
Published: 10/3/2010
Authors: Matthew T. Rakher, Lijun Ma, Oliver T Slattery, Xiao Tang, Kartik A Srinivasan
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905469

82. Effect of 3D Scaffold Structure on Osteogenic Differentiation of Human Bone Marrow Stromal Cells
Topic: Bioscience & Health
Published: 9/30/2010
Authors: Girish Kumar, Marian F Young, Carl GEORGE Simon Jr
Abstract: 3D structural properties of polymeric scaffolds for tissue engineering play a key role in directing osteogenesis. In addition, much work has demonstrated that cell differentiation is sensitive to topology at sizes ranging from nano- to micro- to mac ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906748

83. Characterization of gold nanoparticles modified with single-stranded DNA using analytical ultracentrifugation and dynamic light scattering
Topic: Bioscience & Health
Published: 8/3/2010
Authors: James Falabella, Tae Joon Cho, Dean C Ripple, Vincent A Hackley, Michael J Tarlov
Abstract: We report the characterization of gold nanoparticles modified with thiol-terminated single stranded DNA using analytical ultracentrifugation and dynamic light scattering. Sedimentation coefficients of nominally 10 and 20 nm diameter gold nanoparticl ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904829

84. Preparation and Characterization of Standard Reference Material 1849 Infant/Adult Nutritional Formula
Topic: Bioscience & Health
Published: 7/1/2010
Authors: Katherine E Sharpless, Richard Mark Lindstrom, Bryant C Nelson, Karen W Phinney, Catherine A Rimmer, Lane C Sander, Michele M Schantz, Rabia Oflaz Oflaz, Jeanice M Brown Thomas, Gregory C Turk, Stephen A Wise, Laura J Wood, James H Yen
Abstract: Standard Reference Material (SRM) 1849 Infant/Adult Nutritional Formula has been issued by the National Institute of Standards and Technology (NIST) as a replacement for SRM 1846 Infant Formula, which was issued in 1996. Extraction characteristics o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903876

85. Quantum Dot FRET Sensor for Enzymatic Activity in Microfluidic Device
Topic: Bioscience & Health
Published: 6/22/2010
Authors: Georgeta Crivat, Sandra Maria Da Silva, Darwin R Reyes-Hernandez, Samuel P Forry, Laurie E Locascio, Michael Gaitan, Nitsa Rosenzweig, Zeev Rosenzweig
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907085

86. FRACTURE OF TOOTH ENAMEL FROM INCIPIENT MICROSTRUCTURAL DEFECTS
Topic: Bioscience & Health
Published: 6/14/2010
Authors: H Chai, James J. Lee, Brian Ronald Lawn
Abstract: We present definitive evidence for crack growth from internal defects called 'tufts' in human enamel. Side walls of slices sawn from extracted human teeth are observed during loading to 'failure'. 'Longitudinal' and 'transverse' slices (parallel ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902109

87. Methods of characterization of broadband dielectric properties, challenges in device fabrication and measurement
Topic: Bioscience & Health
Published: 6/1/2010
Authors: James C Booth, Nathan Daniel Orloff
Abstract: We present a new experimental method for determining the broadband dielectric permittivity of ferroelectric thin film samples over the broad frequency range 100 Hz - 40 GHz. Such characterization is extremely important for both a fundamental unders ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=33022

88. Measuring and improving U.S. construction productivity
Topic: Bioscience & Health
Published: 5/10/2010
Authors: Robert E Chapman, David T Butry, Allison L. Huang
Abstract: Although the construction industry is a major component of the U.S. economy, it has experienced a prolonged period of decline in productivity. Due to the critical lack of measurement methods, however, the magnitude of the productivity problem in the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904100

89. Microstructural Evolution of Pd-doped Nanoscale Zero-valent Iron (nZVI) Particles in Aqueous Media and Implications for Particle Reactivity
Topic: Bioscience & Health
Published: 5/6/2010
Authors: Andrew A Herzing, Weile Yan, Christopher J. Kiely, Wei-xian Zhang
Abstract: Palladized zero-valent iron nanoparticles have been frequently employed to achieve enhanced treatment of halogenated organic compounds. However no detailed study has been published on their structures, especially the distribution of palladium within ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904152

90. Solutions for Determining Equibiaxial Substrate Strain for Dynamic Cell Culture
Topic: Bioscience & Health
Published: 5/2/2010
Authors: Martin Y Chiang, Tianle Cheng, Lisa Pakstis, Joy P Dunkers
Abstract: Empirical and analytical solutions are derived in this study to determine the equibiaxial strain on a flexible substrate upon which the cells can be cultured. The empirical formula is based on the mechanistic constraint and a regression analysis of r ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903139