Catchy rhythms like the tresillo are examples of how our musical perception and preference negotiate between simplicity and ...

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ProPublica is a nonprofit newsroom that investigates abuses of power. Sign up to receive our biggest stories as soon as they’re published. This article is co-published with the Texas Observer as part ...

Abstract: The design of observers for nonlinear systems with unknown, time-varying, bounded delays, on both state and input, still constitutes an open problem. In this technical note, we show how to ...

OTTAWA — Defence Minister David McGuinty confirms Canada is looking into getting involved in a program run by a coalition of countries to develop a sixth-generation fighter jet. But McGuinty says ...

Something about this Eid in Kashmir feels genuinely different. A small decision in Pampore has opened a larger debate throughout the valley. Authorities in the saffron town have banned the sale and ...

What if you woke up tomorrow and realized that who you have become isn’t only the result of your habits and intentions, but also of how closely you observed yourself today? Psychology explains that ...

Tinkering at their desks with the mathematics of quantum space and time, physicists have discovered a puzzling conundrum. The arcane rules of quantum theory and gravity let them imagine many different ...

Abstract: This article addresses the problem of robust observer design for nonlinear systems with transformed output. We first assume that there exists an observer design for a given nonlinear system.

Volatility in commodity markets is making it harder to rely on linear supply chains. Lithium prices, for example, rose by more than 1,000 percent between 2020 and late 2022, before dropping 86 percent ...