In Pursuit of the Monarch’s Magnetic Sense

The magnetic compass is the last unknown sense in migrating animals. For some scientists, the monarch butterfly is leading ...
Nature

High-harmonic generation articles from across Nature Portfolio

High-harmonic generation from metasurfaces is believed to follow conventional power laws with integer exponents. In this work, authors discover that the strong local fields related to a metasurface ...
Investopedia

Understanding Pattern Day Trader (PDT) Rules and Margin Requirements

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
Investopedia

What Are Fibonacci Retracement Levels, and What Do They Tell You?

Vikki Velasquez is a researcher and writer who has managed, coordinated, and directed various community and nonprofit organizations. She has conducted in-depth research on social and economic issues ...
IEEE

Optimized Timed Linear and CAA Design and Beam Steering with Harmonic Pattern Synthesis Using Stochastic Optimization

Abstract: This study presents the time-modulated far-field radiation pattern synthesis using the Particle Swarm Optimization (PSO) technique for compact circular antenna arrays (CAAs) and linear ...
North Coast Journal

Through Mark Larson’s Lens

The end of the year always feels like a mad scramble here at the Journal. It’s one reason we’re grateful to have Mark Larson’s annual archive to share with readers and to fathom the timeline of the ...