Abstract: For a weakly nonlinear system described by Volterra series, if the nonlinear differential equation (NDE) model of the system is unique, the nonlinear auto-regressive with exogenous input ...

Today’s TV landscape offers more than a lifetime’s worth of choice for audiences. In total, TV audiences in the U.S. can now find content on more than 32,200 linear channels and 89 streaming video ...

President Donald Trump has said he moved “a submarine or two” to the coast of Russia, but said the word “nuclear” can never be said. “I call it the N word. There are two N words, and you can’t use ...

April Koh vividly remembers the first time she tried to talk to her mother about her mental health, when she was about nine years old. “She was doing the laundry, and I kind of snuck up behind her and ...

MAGA supporters incorrectly attributed a sea of white t-shirts at Penn State’s most recent game as a show of support for slain political commentator Charlie Kirk. On Saturday, Penn State hosted Oregon ...

Physicists have measured both the momentum and position of a particle without breaking Heisenberg’s iconic uncertainty principle. In quantum mechanics, particles don’t have fixed properties the way ...

Cybersecurity researchers have disclosed two security flaws in Wondershare RepairIt that exposed private user data and potentially exposed the system to artificial intelligence (AI) model tampering ...

This panel was filmed on 9 September 2025. Predicting the future is no small task, especially in the increasingly fast-moving world we find ourselves in. Trying to find the investments that will ...

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Electrophilic aromatic substitution reactions and ketone reduction are fundamental reactions in sophomore-level organic chemistry courses. One commonly taught example of electrophilic aromatic ...