• Organization: National Institute of Standards and Technology
• Updated: 2009-09-01 00:00:00

This database contains critically evaluated transition frequencies for the molecular transitions detected in interstellar and circumstellar clouds reported in the literature through mid-2008. The...

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• Organization: National Institute of Standards and Technology
• Updated: 2004-07-01 00:00:00

This database contains the rotational spectral lines observed and reported in the open literature for 91 hydrocarbon molecules through September 1987. The isotopic molecular species, assigned...

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• Organization: National Institute of Standards and Technology
• Updated: 2005-11-01 00:00:00

This database contains the rotational spectral lines observed and reported in the open literature for 121 diatomic molecules through July 2002. The isotopic molecular species, assigned quantum...

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• Organization: Department of the Interior
• Updated: 2020-08-30T00:00:00Z

We examined species boundaries within an imperiled group of freshwater mussels in the genus Cyclonaias (Bivalvia: Unionidae) using morphometrics, molecular phylogenetics, and multispecies...

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• Organization: National Institute of Standards and Technology
• Updated: 2003-07-01 00:00:00

This data base contains the rotational spectral lines observed and reported in the open literature for 55 triatomic molecules through June 1976. The isotopic molecular species, assigned quantum...

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• Organization: U.S. Department of Health & Human Services
• Updated: 2023-07-26

The NIMH Repository and Genomics Resource (RGR) stores biosamples, genetic, pedigree and clinical data collected in designated NIMH-funded human subject studies. The RGR database likewise links to...

• Organization: U.S. Department of Health & Human Services
• Updated: 2025-09-06

Background Genetic screens in Drosophila have provided a wealth of information about a variety of cellular and developmental processes. It is now possible to screen for mutant phenotypes...

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• Organization: Department of Agriculture
• Updated: 2024-05-07

The disease known as Septoria nodorum blotch, or SNB, is caused by a fungal pathogen that infects wheat plants and can cause substantial losses in grain yield. When a specific protein known as...

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• Organization: U.S. Department of Health & Human Services
• Updated: 2025-09-06

Background: Classic methods of identifying genes involved in neural function include the laborious process of behavioral screening of mutagenized flies and then rescreening candidate...

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• Organization: U.S. Department of Health & Human Services
• Updated: 2025-09-06

Background The legume Medicago truncatula has emerged as a model plant for the molecular and genetic dissection of various plant processes involved in rhizobial, mycorrhizal and...

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• Organization: National Institute of Standards and Technology
• Updated: 2012-10-10 00:00:00

NIST X-ray Photoelectron Spectroscopy Database XPS contains over 33,000 data records that can be used for the identification of unknown lines, retrieval of data for selected elements (binding...

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• Organization: National Institute of Standards and Technology
• Updated: 2022-11-22 00:00:00

The Maxwell-Bloch equations for a two-level system are solved in a particular case. The example follows that of P. Siddons, "Light propagation through atomic vapours," Journal of Physics B:...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

The Tübingen Echelle (TUES) obtained moderate dispersion observations (R=13,000) using an echelle grating including orders 40 - 61 from 910 - 1410 Angstroms. The instrument was designed and built...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2014-01-01

Background: Chemical toxicity testing is being transformed by advances in biology and computer modeling, concerns over animal use and the thousands of environmental chemicals lacking toxicity...

• Organization: U.S. Department of Health & Human Services
• Updated: 2025-09-06

Although bronchogenic carcinomas progress through a very well defined sequence of metaplasia, dysplasia and carcinoma in situ, very little is known about the early progression of glandular...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-16

The MIGHTI instrument measures the horizontal wind speed and direction (the wind vector). Each MIGHTI unit measures the wind along its line of sight. MIGHTI uses two perpendicular fields of view...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-16

The MIGHTI instrument measures the horizontal wind speed and direction (the wind vector). Each MIGHTI unit measures the wind along its line of sight. MIGHTI uses two perpendicular fields of view...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-16

The MIGHTI instrument measures the horizontal wind speed and direction (the wind vector). Each MIGHTI unit measures the wind along its line of sight. MIGHTI uses two perpendicular fields of view...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-16

The MIGHTI instrument measures the horizontal wind speed and direction (the wind vector). Each MIGHTI unit measures the wind along its line of sight. MIGHTI uses two perpendicular fields of view...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-16

The MIGHTI instrument measures the horizontal wind speed and direction (the wind vector). Each MIGHTI unit measures the wind along its line of sight. MIGHTI uses two perpendicular fields of view...

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