As part of the American Experience film on General MacArthur, this article explains the plight of the World War I veterans who marched on Washington in 1932 to claim their war bonus--which they needed due to the Great Depression--only to be routed out of the city by the U.S. Army at the command of President Hoover.

Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.

By the end of this section, you will be able to do the following:

Classify the different types of joints on the basis of structure
Explain the role of joints in skeletal movement

By the end of this section, you will be able to do the following:

Describe the symptoms, potential causes, and treatment of several examples of nervous system disorders

Do Something is a nationwide network of young people who know they can make a difference in their communities and take action to change the world around them. As part of Do Something, young people are asked what they want to do to make things better and then given the resources and support to bring their unique vision to life.

Discover why concussions and less traumatic forms of brain injury sustained while playing high school football are being met with greater scrutiny from science and society. Evidence gathered from the brains of deceased former professional athletes shows a progressive degenerative disease called chronic traumatic encephalopathy, or CTE, which is linked with a history of concussions and can lead to depression, dementia, and even suicide. Researchers have found that the onset of CTE can occur even in people who have never suffered concussions. [4:41]

The Minneapolis branch of the Federal Reserve Bank system. It has a wealth of financial information and data, information about the banking system and the state of the economy, and financial education resources.

This page from the Federal Reserve Bank of Philadelphia provides information in the following areas: General Information, What's New, Community Affairs, Supervision, Regulation & Credit, Publications, Employment Opportunities, Economy, and Site Map.

This page from the Federal Reserve Bank of Richmond provides access to information in the following categories: General Information, Monetary Policy & Business Conditions, Financial Services, Banking, Community Affairs, Consumer Information, Economic Research, and President's Speeches about the Federal Reserve Bank of Richmond.

This page from the Federal Reserve Bank of San Francisco provides information in the following categories: Inside the FRBSF, Economic Research, Financial Services, Economics Education, Community Affairs, Banking and Finance in the West, Treasury Securities or Savings Bonds, and Central Banking.

Through the exercises presented at this website, students with "Learn that other kids experience the same kids of emotions as they do," "That it's important to understand what we're feeling," and "That we can often benefit by discussing our feelings."

Know that it is normal to experience different emotions and learn positive ways to deal with your emotions. This website, which is meant to accompany a video on emotions and good character, provides questions for discussion, activity ideas, and writing prompts through which students can discuss emotions with friends, peers, and family members.

This site from ibiblio.org gives extensive biographical information on Herbert Hoover based on the collection in the Herbert Hoover Museum.

This scrollable introduces the concept that cells can communicate via signaling molecules in a process called cell signaling. Communication between cells can lead to a variety of changes in the cell, from alterations to its growth, structure or metabolism. When cell signaling pathways don’t function properly, disease can result.

This site from the MayoClinic.com provides great information on the disorder known as depression. The article covers information on the signs and symptoms, causes, risk factors, screening, complications, treatment, self-care, and more.

This site from the MayoClinic.com provides great information on the seasonal affective disorder, or SAD. The article includes sections such as: overview, signs and symptoms, causes, screening, diagnosis, and treatment.

Principles of Macroeconomics 2e covers the scope and sequence of most introductory economics courses. The text includes many current examples, which are handled in a politically equitable way. The outcome is a balanced approach to the theory and application of economics concepts. The second edition has been thoroughly revised to increase clarity, update data and current event impacts, and incorporate the feedback from many reviewers and adopters. Changes made in Principles of Macroeconomics 2e are described in the preface and the transition guide to help instructors transition to the second edition. The first edition of Principles of Macroeconomics by OpenStax is available in web view here.