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BASE (Bielefeld Academic Search Engine) is one of the world's most voluminous search sengines especially for academic web resources, e.g. journal articles, preprints, digital collections, images / videos or research data. Other than search engines like Google or Bing BASE searches the deep web as well. The sources which are included are intellectually selected and reviewed. BASE is operated by Bielefeld University Library.
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This compilation of kinetic and photochemical data is prepared by the NASA Panel for Data Evaluation. The Panel was established in 1977 by the NASA Upper Atmosphere Research Program Office for the purpose of providing a critical tabulation of the latest kinetic and photochemical data for use by modelers in computer simulations of atmospheric chemistry. Updates to this evaluation are released every two to three years in electronic form as JPL Publications.
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ChemIDplus content is being migrated to PubChem. before: ChemIDplus is a free, web-based search system that provides access to structure and nomenclature authority files used for the identification of chemical substances cited in National Library of Medicine (NLM) databases. ChemIDplus also provides structure searching and direct links to many biomedical resources at NLM and on the Internet for chemicals of interest. The database is searchable by Name, Synonym, CAS Registry Number, Molecular Formula, Classification Code, Locator Code, Structure, Toxicity, and/or Physical properties.
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ChemSpider is a free chemical structure database providing access to over 25 million structures, properties and associated information. By integrating and linking compounds from more than 400 data sources, ChemSpider enables researchers to discover the most comprehensive view of freely available chemical data from a single online search. ChemSpider builds on the collected sources by adding additional properties, related information and links back to original data sources. ChemSpider offers text and structure searching to find compounds of interest.
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ChemSynthesis is a freely accessible database of chemicals. This website contains substances with their synthesis references and physical properties such as melting point, boiling point and density. There are currently more than 40,000 compounds and more than 45,000 synthesis references in the database.
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CiteSeerx is a scientific literature digital library and search engine that focuses primarily on the literature in computer and information science. CiteSeerx aims to improve the dissemination of scientific literature and to provide improvements in functionality, usability, availability, cost, comprehensiveness, efficiency, and timeliness in the access of scientific and scholarly knowledge.
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COMAR helps you find a suitable certified reference material (CRM) for your laboratory. For a large number of materials offered worldwide we have produced data sheets and collected them in the COMAR database. You can browse and search the database at no cost. What is not included in the database are reference materials that come without a certificate.
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The DART-Europe E-theses Portal is a searchable database of electronic research theses held in European repositories. The theses listed are open access - publicly available, in full, without charge. The DART-Europe Portal does not store theses, but it provides a link to at least one electronic copy of every thesis listed in its database.
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EThOS is the UK’s national thesis service. There are approximately 480,000 records relating to theses awarded by over 120 institutions. Around 260,000 of these also provide access to the full text thesis, either via download from the EThOS database or via links to the institution’s own repository. Of the remaining 220,000 records dating back to at least 1800, three quarters are available to be ordered for scanning through the EThOS digitisation-on-demand facility.
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This website provides kinetic and photochemical data evaluated by the IUPAC Subcommittee for Gas Kinetic Data Evaluation.
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The GESTIS substance database contains information for the safe handling of hazardous substances and other chemical substances in the workplace, such as the effects of the substances on humans, the necessary protective measures and the measures to be taken in the event of danger (incl. first aid). In addition, the user is informed about important physicochemical data as well as special regulations for the individual substances, in particular for classification and labeling according to GHS in accordance with the CLP Regulation (pictograms, H-phrases, P-phrases).
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A database containing solubilities originally published in the IUPAC (International Union for Pure and Applied Chemistry). Mutual solubilities and liquid-liquid equilibria of binary, ternary and quaternary systems are presented. Typical solvents and solutes include water, sea water, heavy water, inorganic compounds, and a variety of organic compounds such as hydrocarbons, halogenated hydrocarbons, alcohols, acids, esters and nitrogen compounds. Scope: There are over 67,500 solubility measurements, compiled from 18 volumes of the IUPAC Solubility Data Series. There are about 1800 chemical substances in the database and 5200 systems, of which 473 have been critically evaluated.
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Journal Citation Reports is a comprehensive and unique resource tool that allows you to evaluate and compare journals using citation data drawn from over 7,000 scholarly and technical journals from more than 3,300 publishers in over 60 countries. It is the only source of citation data on journals, and includes virtually all specialties in the areas of science, technology, and social sciences. Journal Citation Reports can show you the: - Most frequently cited journals in a field - Highest impact journals in a field - Hottest journals in a field - Leading journals in a field - Most published articles in a field.
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JoVE, the Journal of Visualized Experiments, is the world's first peer reviewed scientific video journal. Established in 2006, JoVE is devoted to publishing scientific research in a visual format to help researchers overcome two of the biggest challenges facing the scientific research community today; poor reproducibility and the time and labor intensive nature of learning new experimental techniques. JoVE has published thousands of video articles from top research institutions around the world. The members of JoVE's Editorial Board are drawn from the ranks of world renowned professors, scientists, physicians and key opinion leaders. Board members are selected for their proven experience and knowledge of the latest in either experimental scientific or cutting-edge medical practice.
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The MPI-Mainz UV/VIS Spectral Atlas is a comprehensive collection of cross sections for gaseous molecules and radicals, primarily relevant to atmospheric research. The individual data sets were collected from the original publications, either copied from tabulations, or read from figures in those cases where numerical data could no longer be obtained. In addition, several spectra were obtained from databases of several research centers and via personal communication.
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MSI Eureka is a research & information platform that compiles and critically evaluates data on materials constitution, phase diagrams, etc. The database covers virtually all inorganic materials systems ever published, dates back to pre-1900 and is continuously updated. The content is being created by MSIT®, Materials Science International Team, in continuous evaluation programs, ongoing since 1984.
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The NATO Research and Technology Organisation (RTO) promotes and conducts co-operative scientific research and exchange of technical information amongst 26 NATO nations and 38 NATO partners. The largest such collaborative body in the world, the RTO encompasses over 3000 scientists and engineers addressing the complete scope of defence technologies and operational domains.
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The Networked Digital Library of Theses and Dissertations indexes citations, abstracts, and full-text theses and dissertations from around the world. Many are available in full text through this database. Early 1900s-present.
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This database provides access and search capability for NIST critically evaluated data on atomic energy levels, wavelengths, and transition probabilities.
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The NIST Chemical Kinetics Database includes essentially all reported kinetics results for thermal gas-phase chemical reactions. The database is designed to be searched for kinetics data based on the specific reactants involved, for reactions resulting in specified products, for all the reactions of a particular species, or for various combinations of these. In addition, the bibliography can be searched by author name or combination of names. The database contains in excess of 38,000 separate reaction records for over 11,700 distinct reactant pairs.
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