Skip all navigation and go to page content
NN/LM Home About NTO | Contact NTO | NTO Feedback | Help | Bookmark and Share

Feature Slides

  • Discovering TOXNET®

    Discover TOXNET and other NLM environmental health databases through videos, guided tutorials, and discovery exercises in thirteen independent modules. The independent modules cover TOXLINE, ChemIDplus, TRI, TOXMAP, Hazardous Substances Data Bank, IRIS, and more.

    Discovering TOXNET®

    Discovering TOXNET® Picture
  • PubMed® for Librarians

    PubMed for Librarians is a series of 90 minute classes. Each segment is meant to be a stand-alone module. Each segment is eligible for 1.5 MLA Continuing Education hours. CE credit is not available for viewing the recording.

    PubMed® for Librarians

    PubMed® for Librarians Picture

NLM Releases TOXinvaders, a Mobile Game about Chemistry, the Environment and Health

The Division of Specialized Information Services (SIS) of the National Library of Medicine (NLM) launched TOXinvaders, an environmental health and toxicology game for iPhone and iPad, available from the Apple Store (

TOXinvaders supports middle school science concepts pertaining to chemistry, environment and health. It can serve as an engaging classroom or homework activity for middle and high school students, as well as an entertaining learning activity for gaming aficionados of all ages. In the classroom environment, TOXinvaders works best as a supplement to NLM Tox Town, Environmental Health Student Portal, TOXMAP, and ChemIDplus web sites.


The game consists of four fast-paced levels, in which a launcher is used to annihilate toxic chemicals falling from the sky and earn protective shield points by capturing “good chemicals.” To move on to the next level, players must take a brief quiz about its chemicals in order to unlock the next one. These dynamically generated tests provide an excellent opportunity to learn more about environmental health and toxicology, either from the game’s chemical information sheet, or from NLM Web sites. Quiz questions and answers can also serve as a departure point for classroom discussions, as well as Tox Town, TOXMAP, and Environmental Health Student Portal activities and experiments.

Sometimes, zero isn’t everything

Did you attend MLA 2016 in Toronto? Did you hear Dr. Ben Goldacre give the McGovern Lecture?  One of the things he spoke about was representing statistics in charts and that pesky Y axis. The YouTube video below does not contradict Goldacre, but shows how sometimes zero can get in the way.

Comings and Goings in PubMed

A Digital Object Identifier (DOI) link will be added to the end of each PubMed abstract display when available.

The “Items per page” selection menu will be removed from the top of the results page because it is rarely used by searchers. The option will still be available at the bottom of the search results page.

You can choose your preferred number of results to display by default in your MyNCBI account.

Follow this link to view the upcoming changes and see how to set a default in your MyNCBI account:

Tell Us What You Think!

We want you to tell us about our website

As the NN/LM Training Office, we’re hoping to make improvements to our website which make it easier for you to quickly find the information you need. We hope you’ll take a few minutes to answer seven questions (just 7!) about what you do on and what you’d like to do or see. Please contact us at if you have questions about this feedback form. Thank you for your input.

Tell us what you think!


Email Accidents Happen

You hit Reply All by mistake; you include someone you didn’t intend to include; you hit Send before you’re finished; maybe you don’t notice which email address you’re replying to and Reply to the whole listserv (similar to Reply All). Wouldn’t it be great if these things didn’t happen? Well, here’s tip that I try to follow to minimize the possibility that these things happen. Note: this tip only works if you follow it…says the person who recently replied to an entire listserv.

It’s very simple. Do not fill out the email address portion until you are finished writing and reviewing the email.

Follow #1, if you’re writing a new email. Follow #2, if you’re replying to an email.

1) For a new email, leave the To address space blank until you’re done writing and reviewing the email.

2) If you’re replying to an email, Cut the email address out of the To space and paste it into the body area of the email. This is only temporary. When you’re done writing and reviewing your response to the original email, cut and paste the email address back into the To space.

Now, please hear me; I am being a bit tongue-in-cheek in this post, but I do want to share what I learned the hard way, more than once, and spare you that Oh No moment.