This API returns a search for the demographic information for a particular geography type and geography name.

This API returns a search for the demographic information for the whole nation.

This API returns a geography of a specified geography type by the geography id.

This MEMS Calculator determines the following thin film properties from data taken with an optical interferometer or comparable instrument: a) residual strain from fixed-fixed beams, b) strain gradient from cantilevers, c) step heights or thicknesses from step-height test structures, and d) in-plane lengths or deflections. Then, residual stress and stress gradient calculations can be made after an optical vibrometer or comparable instrument is used to obtain Young's modulus from resonating cantilevers or fixed-fixed beams.

NIST peptide libraries are comprehensive, annotated mass spectral reference collections from various organisms and proteins useful for the rapid matching and identification of acquired MS/MS spectra. Spectra were produced by tandem mass spectrometers using liquid chromatographic separations followed by electrospray ionization. Unlike the NIST small molecule electron ionization library which contains one spectrum per molecular structure, there are several different modes of fragmentation (ion trap and ?beam-type?

Annual Resident Population Estimates, Estimated Components of Resident Population Change, and Rates of the Components of Resident Population Change for States and Counties: April 1, 2010 to July 1, 2013 // File: 7/1/2013 County Population Estimates // Source: U.S. Census Bureau, Population Division // Release Date: March 2014 // Note: Total population change includes a residual. This residual represents the change in population that cannot be attributed to any specific demographic component.

Annual Resident Population Estimates for Puerto Rico Municipios: April 1, 2010 to July 1, 2013 // File: 7/1/2013 Puerto Rico Municipio Population Estimates // Source: U.S. Census Bureau, Population Division // Release Date: March 2014 // Note: The estimates are based on the 2010 Census and reflect changes to the April 1, 2010 population due to the Count Question Resolution program and geographic program revisions. All geographic boundaries for these population estimates are as of January 1, 2013.

Estimates of the Total Resident Population and Resident Population Age 18 Years and Older for the United States, States, and Puerto Rico // File: State Characteristics Population Estimates // Source: U.S. Census Bureau, Population Division // Note: The estimates are based on the 2010 Census and reflect changes to the April 1, 2010 population due to the Count Question Resolution program and geographic program revisions.

Annual Population Estimates, Estimated Components of Resident Population Change, and Rates of the Components of Resident Population Change for the United States, States, and Puerto Rico // File: National and State Population Estimates // Source: U.S. Census Bureau, Population Division // Note: Total population change includes a residual. This residual represents the change in population that cannot be attributed to any specific demographic component.

The IUPAC Solubility Data Series Volumes 1-103 (1979 to 2014) are made available online. Volumes 1-19 and 39-65 are available as scanned and OCR'd single PDF files. Volumes 20-38 are available with each volume indexed and sectioned into multiple PDF files that can browsed using an online table of contents. Volumes 66-103 are available through links to the document at the Journal of Physical and Chemical Reference Data. The electronic part of the database contains 67,500 solubility measurements, compiled from 18 volumes of the IUPAC Solubility Data Series.