News

From fish cloaca to fingers: Scientists trace the origin of our digits

How did digits evolve? While it is clear that they derive from genetic programs already present in fish, their precise origin ...

Conquering disorder: Modeling a solid with liquid-like ion movement

Copper selenide (Cu₂Se) attracts scientific interest for its thermoelectric ability to convert heat into electricity, but a ...

This is the biggest sofa you can fit around a corner, according to a mathematician

The question seeks to find a maximum value for the area of a sofa that can slide around a 90-degree corner in a corridor of a ...
IEEE

Improved Cubic Function Negative-Determination Condition: Application to Delayed Load Frequency Control Power System With Electric Vehicle

Abstract: This paper investigates the stability of a delayed load frequency control (LFC) power system. Firstly, a dynamic LFC model is reconstructed to facilitate the development of a suitable ...
IEEE

Construction of Optimized Dynamic S-Boxes Based on a Cubic Modular Transform and the Sine Function

Abstract: The protection of sensitive data from illegitimate users is one of the main challenges in today’s technological era. To handle prevailing security-related problems and challenges amicably, ...
Investopedia

How to Calculate Internal Rate of Return (IRR) in Excel and Google Sheets

Caroline Banton has 6+ years of experience as a writer of business and finance articles. She also writes biographies for Story Terrace. Thomas J. Brock is a CFA and CPA with more than 20 years of ...