Archive for the ‘NLM Resources’ Category
The archived recording of the January 25 session for the NN/LM collaborative webinar series, NN/LM Resource Picks, is available. The topic was PubMed Update with Katherine Majewski, from the National Library of Medicine’s MEDLARS Management Section, Bibliographic Services Division. View the webinar by clicking on the YouTube video player below.
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The American Dental Association named February 2017 as National Children’s Dental Health Month. The National Library of Medicine has multilingual information about children’s dental health available for free online:
- Check MedlinePlus for a collection of reliable links related to Child Dental Health, and use the Medical Encyclopedia on MedlinePlus to find instructions on brushing your child’s teeth and preventing tooth decay in early childhood. Various informational handouts in seven languages about child dental health can be downloaded on MedlinePlus.
- Browse HealthReach for topics like dental care and oral hygiene to view and download patient information in over a dozen languages, including audio and video options for some records. For instance, the brochure Healthy Teeth, Health Kids is available in 13 languages, with audio downloads in eight languages. Use the split-screen view on HealthReach to view the document in English and a second language simultaneously.
An enhanced relevance algorithm for the “Best Match” sort order is coming to PubMed. The new algorithm incorporates machine learning to re-rank the top articles returned for improved relevance. The standard PubMed Best Match sort is based on a weighted term frequency algorithm. This approach calculates the frequency with which terms appear in PubMed records. Those frequencies are then applied in a weighted fashion to return a ranked list of PubMed citations that match your query terms. The new relevance algorithm includes machine learning to re-rank the top articles returned. This algorithm combines over 150 signals that are helpful for finding best matching results. Most of these signals are computed from the number of matches between the search terms and the PubMed record, while others are either specific to a record (e.g., publication type; publication year) or specific to a search (e.g., search length). The new ranking model was built on relevance data obtained from anonymous PubMed search logs that were aggregated over an extended period of time.
Because the “Best Match” results are calculated using a new machine learning environment, there might be a slight change in total search results when sorting by “Best Match.” Users who sort by “Best Match” are typically clicking through citations on the first page of retrieval; therefore, it is important for NLM to continue to incorporate new tools to improve this ranking. The new machine learning system achieves significant improvement in retrieval performance over the weighted term frequency algorithm alone. Additionally, the “Search details” portlet will be replaced with “Best match search information” that will display translations to MeSH, etc., and additional synonyms under the “See more…” link. The Search button will not be available for the new portlet used for “Best Match” results. To use “Best Match” as the default sort order for PubMed results, change your preferences in My NCBI. For additional details and illustrations, visit the NLM Technical Bulletin.
The Winter 2017 issue of NIH MedlinePlus the Magazine highlights health topics including depression, prostate enlargement, breast cancer, pain management, and menopause. The cover features swimmer Michael Phelps, the most decorated Olympian of all time. Despite his incredible success in competitive swimming, away from the pool he was among the many people who deal with depression. He shares his story with NIH MedlinePlus magazine.
The issue also features an article about menopause. Melanie Modlin, Deputy Director, Office of Communications and Public Liaison at the National Library of Medicine, was interested in helping researchers learn about the differences in symptoms women experience as they approach “the menopausal transition.” She volunteered for a clinical trial studying the impact of changing hormone levels on thinking ability and sleep and describes her experience with NIH MedlinePlus magazine.
NIH MedlinePlus the Magazine is the free, trusted consumer guide to the vast array of authoritative online health and medical information in MedlinePlus. Published four times a year, the magazine showcases the National Institutes of Health’s (NIH) latest medical research and healthcare information. NIH MedlinePlus the Magazine is freely available as a print subscription, e-mail alerts, and online.
The 2017 winter edition of the NLM Classification has been issued. It has moved from an annual spring update to twice-yearly updates. The 2017 winter edition includes several additions and changes to the Index and Schedules. All main index headings are now linked to the 2017 vocabulary in the MeSH Browser. The 2017 summer version will be published in mid-to-late August, and will encompass the ongoing systematic review of particular classification schedules and other miscellaneous updates. The PDF version will be published annually in conjunction with the summer version. Contact NLM for further information, questions, or comments.
National Drug and Alcohol Fact Week, a public education project from the National Institute on Drug Abuse (NIDA), aims to shatter myths that teens may believe about drugs and alcohol. The National Library of Medicine provides outreach materials that can be used to teach teens and the general public from many different special populations about the health risks associated with drugs and alcohol, including:
- General Public: Use MedlinePlus to provide summaries and links about drug and alcohol abuse in consumer-friendly language for the general public, including multilingual information.
- Native Americans: The American Indian Health portal provides links for Native American communities, researchers, and the general public on alcohol abuse and substance abuse.
- Non-English Speakers: The HealthReach website can be used to locate patient handouts, audio, and video in multiple languages, related to drugs and alcohol.
NLM’s AIDSource now offers PrEP Navigation Resources and HIV Navigation Resources. These resources, selected by subject matter experts, are designed to assist frontline “navigators” who work with affected populations. Pre-exposure prophylaxis (PrEP) is a once daily pill that helps protect against HIV. Resources include basic information about PrEP and navigator training tools. The HIV navigation resources cover retention in HIV care and tools for patient navigators. Both sets of navigation resources link to content for Spanish speakers.
Beginning February 21, 2017, the National Library of Medicine will present the three-part Webinar series, Insider’s Guide to Accessing NLM Data: EDirect for PubMed. This series of workshops will introduce new users to the basics of using EDirect to access exactly the PubMed data you need, in the format you need. Over the course of three 90-minute sessions, students will learn how to use EDirect commands in a Unix environment to access PubMed, design custom output formats, create basic data pipelines to get data quickly and efficiently, and develop simple strategies for solving real-world PubMed data-gathering challenges. No prior Unix knowledge is required; novice users are welcome!
Registration is currently open for the February/March 2017 series:
- Part 1: Getting PubMed Data, Tuesday, February 21, 10:00 – 11:30 AM PST
- Part 2: Extracting Data from XML, Tuesday, February 28, 10:00 – 11:30 AM PST
- Part 3: Building Practical Solutions, Tuesday, March 7, 10:00 – 11:30 AM PST
Students are expected to attend Part 1, Part 2, and Part 3 in a single series. Due to the nature of this class, registration will be limited to 50 students per offering.
This series of classes involves hands-on demonstrations and exercises. Before registering for these classes, NLM strongly recommends the following:
- Watch the first Insider’s Guide class “Welcome to E-utilities for PubMed” or be familiar with the basic concepts of APIs and E-utilities.
- Be familiar with structured XML data (basic syntax, elements, attributes, etc.)
- Have access to a Unix command-line environment on your computer (see the Installing EDirect page for more information.)
- Install the EDirect software (see the Installing EDirect page for more information.)
Whenever learning about a new health topic, it helps to become familiar with a new set of terms related to the topic, and a glossary may come in handy. Specialized Information Services at the National Library of Medicine provides access to glossaries covering a range of health topics, from HIV/AIDS to disaster-related terminology:
The National Library of Medicine has announced two additions to the NLM Digital Collections, the Library’s free online repository of biomedical resources including books, still images, videos, and maps.
Incunabula: A collection of books and broadsides printed in Europe before 1501 includes over forty items from the Library’s world-renowned collection of more than 580 incunabula on subjects relating to science and medicine, from printed classical works of Galen and Hippocrates to materials on the plague and other “pestilences.” Incunabula (from the Latin for “cradle”) are books and other materials produced with movable type on a printing press between the mid-1450s through the end of 1500 — the infancy of the age of printing. This digital collection will grow over time as the Library scans more incunabula titles.
World War 2, 1939-1949: A collection of U.S. government documents includes more than 1,500 federal, state, and local government publications. Among the variety of materials included are government reports, first aid manuals, informational pamphlets, and recruitment materials that demonstrate the efforts of government, military personnel, health professionals, and scientists, among others, on the home front and overseas during and immediately following the Second World War.
All of the content in NLM Digital Collections is freely available worldwide and, unless otherwise indicated, in the public domain. As with all printed materials added to the NLM Digital Collections, items from these new collections will also be included in the Internet Archive, and as part of the Medical Heritage Library through the ongoing collaboration with that international digital curation collaborative. More information about the content of these two new digital collections is available from the NLM History of Medicine Division Reference Desk.