As you search for information, save your sources, particularly datasets and government publications. Note the date you were last able to access a source in case it isn’t available later. Check the Internet Archive’s Wayback Machine and other repositories for removed data sources or websites.
Citation managers can help you manage the information you save about your sources. You can reference and cite information that is no longer available where you found it. For these citations, include a last accessed date.
Having trouble finding data or a source? Talk with your subject librarian.
The 103rd edition, 2021, of the CRC Handbook of Chemistry and Physics is a vast almanac of facts, tables, and statistics about mathematics and the physical world. It is one of the most used handbooks in the sciences. Access is limited to 2 users at a time.
The online version allows for expanded functionality over the print; in particular, interactive tables that allow you to customize data by filtering just what you need and sorting colunmns. You may search all text, tables, or CAS registry numbers, and export or email the information to yourself.
Reaxys is a chemistry database that provides information about chemical structures, reactions, and properties. It also lists journal articles, patents, and other publications related to them, as well as substance property and reaction data, synthesis options and experimental procedures.
SciFinder-n provides access to the worlds most comprehensive and reliable collection of scientific research information, including millions of records and up-to-date patent and chemical information curated and aggregated by a global network of expert scientists. Links to patents and Northeastern-subscribed materials.
Registering for SciFinder-n
If you are already a registered user of SciFinder, you can connect to SciFinder-n with your current SciFinder username and password - no need to create a new one.
If you do NOT already have a SciFinder username and password, you can register using your Northeastern email. PLEASE NOTE: After registering, you will receive an email confirmation of your registration. If you are completing new user registration off campus, please use this proxied link instead of the one you receive in your email confirmation.
Why do I need to register if I have access through Northeastern?
CAS requires each user to create an account and accept the CAS SciFinder Terms of Use in order to use the database. Key terms include:
Use is restricted to current faculty, staff and students of Northeastern.
I will only use CAS SciFinder for non-commercial, personal, educational, or research use.
Commercial use is forbidden.
You may not download more than 5,000 records.
I will not share my username and password with any other person.
I will search only for myself and not for others or other organizations.
I will not use any automated program or script for extracting or downloading CAS data, or any other systematic retrieval of data.
I may retain a maximum of 5,000 Records at any given time for personal use or to share within a Project team for the duration of the Project.
My organization's Scifinder License and the CAS Information Use Policies apply to my use of SciFinder.
On-demand SciFinder-n training resources that are short, targeted materials, organized by search type
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Over 20,000 pathway/genome databases (PGDBs). BioCyc encyclopedias integrate a diverse range of data and provide a high level of curation for important microbes. Data can be downloaded and queried, and Pathway Tools can be installed to create your own local database. View more information about this resource (opens in a new window).
Collects, annotates, archives, and disseminates spectral and quantitative data derived from NMR spectroscopic investigations of biological macromolecules and metabolites
Free database containing information on over 6500 enzymes: nomenclature, EC and registry numbers, reaction and specificity, inhibitors, structure, isolation, literature references, and more
Provides manually curated information about chemical–gene/protein interactions, chemical–disease and gene–disease relationships, integrated with functional and pathway data
Repository of information relative to the nomenclature of enzymes, primarily based on the recommendations of the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (IUBMB). Describes each type of characterized enzyme for which an EC (Enzyme Commission) number has been provided.
Recommendations of the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology on the nomenclature and classification of enzymes by the reactions they catalyse. Browse and search for enzyme names using EC numbers.
A public repository that archives and freely distributes comprehensive sets of microarray, next-generation sequencing, and other forms of high-throughput functional genomic data submitted by the scientific community. In addition to data storage, a collection of web-based interfaces and applications are available to help users query and download the studies and gene expression patterns stored in GEO.
Free web site with Java-based (JME) interface for searching substructure, similarity and pharmacophore similarity on a collection of molecules. Also offers a chemical property calculation function for determining estimated logP (octanol-water partition coefficient), PSA, and other characteristics.
MarinLit is a database dedicated to marine natural products research. It contains a comprehensive range of data, along with powerful dereplication features.
Open access database designed to cover all microbially-derived natural products published in the peer-reviewed primary scientific literature. This encompasses bacterial, fungal and cyanobacterial compounds, but does not include compounds from plants, invertebrates or other higher organisms unless these compounds have also been explicitly identified from a microbial source. Compounds from lichens and mushrooms and other higher fungi are included. Compounds from marine macro algae and diatoms are excluded.
NCBI Datasets is an experimental resource for finding and building datasets. Their web interface allows you to download genome sequence and annotation for eukaryotic organisms. For access to data for all organisms, including bacteria and viruses, use their command line tool and RESTful APIs.
Portal for 3D structural information about Nucleic Acids, is successor to the Nucleic Acid Database (NDB). Provides search, report, statistics, atlas and visualization pages for all nucleic-acid containing experimentally determined 3D structures held by NDB and by the Protein Data Bank (PDB), including all major methods: X-ray, NMR, and Electron Microscopy
A collection of nucleotide sequences from several sources, including GenBank, RefSeq, the Third Party Annotation (TPA) database, and PDB. Searching the Nucleotide Database will yield available results from each of its component databases.
Comprehensive, authoritative compendium of human genes and genetic phenotypes that is freely available and updated daily. The full-text, referenced overviews in OMIM contain information on all known mendelian disorders and over 16,000 genes.
A wiki site that aims to collect, organize and disseminate structural and functional knowledge about protein, RNA, DNA, and other macromolecules, and their assemblies and interactions with small molecules
A curated database containing structured information about biochemical reactions and their corresponding kinetics. It describes participants and modifiers of the reactions, as well as measured kinetic data (including kinetic rate equations) embedded in their experimental and environmental context.
Classifies many newer structures through a combination of automation and manual curation, and corrects some errors in SCOP, aiming to have the same accuracy as the hand-curated SCOP releases. SCOPe also incorporates and updates the Astral database.
A summary of a research article that appears at the beginning of the document. Reading the abstract may help you decide if you want to read the full article.
A geographic information system (GIS) software developed by Esri. ArcGIS enables you to analyze, visualize, and interpret spatial data for better decision-making.
Written content on a narrow subject and published in a periodical or website. In some contexts, academics may use article as a shortened form of journal article.
A group of libraries in New England that work together to share resources with students, faculty, and staff of member libraries. Northeastern University is a member of this group. Requesting a consortium library card is free to Northeastern students.
A free library available to people who work, live or attend school in Massachusetts. Boston Public Library's collection includes physical and digital access to books, journals, and films.
A label of letters and/or numbers that tell you where the resource can be found in the library. Call numbers are displayed on print books and physical resources and correspond with a topic or subject area.
Catalog
A list of all the items in a library's physical collection. Modern catalogs are searchable databases. Catalogs include information about the item's:
title
creator
publication
subject
availability
location in the library
Also called a catalogue, OPAC. Historically a card catalog.
Software that can help you collect, organize, and cite sources. The library provides training on five specific citation managers: BibTeX, EndNote, Mendeley, RefWorks, and Zotero. Also called citation management software, citation management tool or reference manager.
Physical materials assigned by an instructor and held at the library. These materials are generally restricted to in-building use for a limited period. At faculty discretion, some materials may be checked out overnight or for a few days.
A searchable collection of similar items. Library databases include resources for research. Examples include: a newspaper database, such as Access World News, or a humanities scholarly journal database, such as JSTOR.
A searchable online storage space for video files, images, and documents. Specialized digital repositories collect materials related to a theme or institution.
Northeastern University Library manages the Digital Repository Service (DRS). The DRS collects digital material related to Northeastern University's history and academic work.
A unique number assigned to some digital content. DOIs do not change even if the online location or ownership of the resource changes.
Electronic Thesis or Dissertation (ETD)
A digital version of a thesis or dissertation produced by a master's or Ph.D. student. Most theses and dissertations written by Northeastern University students are ETDs. Interested researchers can find Northeastern ETDs in the Digital Repository Service. Theses and dissertations written before 2007 are only available in print format in the Northeastern University Archives.
A broad category of research in which existing research is reviewed to clarify what is known. Evidence synthesis uses explicit and reproducible methods. Common types of evidence synthesis include systematic reviews, scoping reviews, integrative reviews, and umbrella reviews.
The entirety of an article or book, as opposed to a summary or description. Libraries often provide access to the full text as an attached file or in a web reader.
A computer-based means of storing, analyzing, and displaying geographic data. Researchers use Geographic Information Systems to create maps and charts.
A way of examining and interpreting data about geographic locations, or spatial data. Geospatial analysis examines spatial data to gain insights and identify patterns or trends. Also called geospacial analysis.
A library service that allows you to request resources your library does not have. At Northeastern University, this service is free. Materials are delivered electronically when possible.
A meaningful word or phrase in a source’s database or catalog record. Keywords are often used as search terms to retrieve records that contain the word or phrase.
A search setting that removes search results based on source attributes. Limiters vary by database but often include publication date, material type, and language. Also called: filter or facet.
Marginalia
Notes, comments, annotations, sketches, added to the margins of a text. These can be typed or hand-written. Marginalia can include headers, footnotes, and sidenotes. In some cases, marginalia are written by the author of a text, but is often notes made by a reader.
Metadata
Information associated with a resource, usually organized in a specific way. The word metadata means "data about data".
Metadata varies but often includes title, creator, and format. Descriptive metadata makes it possible to find and identify resources in a collection. When the metadata in a collection is standardized, the predefined structure is called a metadata schema.
Research or data available for free. Open access resources are sometimes labeled with an unlocked padlock symbol. These resources often have permissive licenses that support re-use and sharing.
Words used to connect multiple search terms to bring back targeted results. Operators can be used to reduce or expand the number of search results. Operators include:
Well-regarded review process used by some academic journals. Relevant experts review articles for quality and originality before publication. Articles reviewed using this process are called peer reviewed articles. Less often, these articles are called refereed articles.
A free and open-source Geographic Information System (GIS) application. This tool set enables you to capture, analyze, visualize, and share geographic data. QGIS is a Mac-friendly alternative to ArcGIS.
To transfer information from one format to another. Example: Scanning a paper newspaper to create an online or PDF version. Reformatting includes digitization.
A webpage or pages created by librarians to guide your research in a field or course. Research guides include links to resources, tutorials, and other information.
The removal of a published article from a journal. A journal’s editors or editorial board can decide to retract an article when it has serious errors. Errors that can result in retraction include:
A book or article written by academic researchers and published by an academic press or journal. Scholarly sources contain original research and commentary.
Scholarly articles are published in journals focused on a field of study. also called academic articles.
Scholarly books are in-depth investigations of a topic. They are often written by a single author or group. Alternatively in anthologies, chapters are contributed by different authors.
Common filetype (.shp) for points, lines, or polygons. This filetype is widely used in Geographic Information Systems, specifically ArcGIS. Various free shapefiles are available online.
A library database that searches a broad range of resources. Material in Scholar OneSearch includes:
Scholarly, newspaper and other articles
books & eBooks
streaming music and video
board games
archival material
Scholar OneSearch also includes information about material held at Northeastern’s libraries. Researchers can use ScholarOne Search to organize their research and manage borrowed items. To best serve Northeastern University's widespread community, ScholarOne Search has different views:
The Online / Global network view shows all online material.
The Boston view shows all online material and items held at Snell Library.
The Oakland view shows all online material and items held at the F. W. Olin Library.
Appropriate views for each global campus are included on their Global Campus Portal.
A source focused on sharing news and information of interest to an industry. Trade publications are often published by industry associations. Periodicals related to an industry are called trade journals.
An unrepeated string of numbers and letters used to recognize and differentiate material. Also called an identification number. Examples include American citizen's’ social security numbers or published books' ISBNs. A persistent identifier (PID) is a long-lasting type of unique identifier. Persistent identifiers allow you to locate a resource with a URL. Examples include electronic articles' Digital Object Identifiers (DOI) and digital materials' handles.