With over 300 types throughout the Americas, these tiny birds exhibit great diversity. Jaymi Heimbuch is a writer and photographer specializing in wildlife conservation, technology, and food. She is ...

Executive Editor David Carnoy has been a leading member of CNET's Reviews team since 2000. He covers the gamut of gadgets and is a notable reviewer of mobile accessories and portable audio products, ...

Abstract: Electrical impedance matching of ultrasonic transducers is important in optimizing the energy consumption as well as guaranteeing equipment safety for ultrasonic systems in both laboratories ...

Revision hip replacement surgery is more complicated than the first hip replacement. Hip replacements can wear out due to aseptic loosening and other issues. Only you and your surgeon can decide when ...

Abstract: This paper presents a systematic method for designing broadband electrical impedance matching networks for piezoelectric ultrasound transducers. The design process involves three steps: 1) ...

What is a reverse total shoulder replacement? A reverse total shoulder replacement is a special type of shoulder surgery. During the surgery, a surgeon removes the damaged parts of the shoulder and ...