If you’ve heard of one home security company, it’s probably ADT. The company, with its famous blue logo, has been in business for 145 years, making it the oldest home security company in the United ...

J. William Carpenter is an economist who writes financial topics. He is an author of published works for higher education and business clients. Doretha Clemons, Ph.D., MBA, PMP, has been a corporate ...

A pulse oximeter measures blood oxygen levels at home and in healthcare settings. Abnormally low readings on a pulse oximeter might require medical care, especially if they are below 92%. Skin color ...

If you have trouble breathing, your doctor may recommend a few tests to figure out what’s causing it. Some measure how much air you breathe in or out or how much oxygen is going from your lungs to the ...

Lessons from China’s innovative digital giant by Ming Zeng Alibaba hit the headlines with the world’s biggest IPO in September 2014. Today, the company has a market cap among the global top 10, has ...