Abstract: We propose the peak of the polynomial Wigner-Ville distribution as an instantaneous frequency estimator for polynomial frequency modulated signals in the presence of multiplicative and ...

Multiplication is working out how many groups of something you have altogether. Division is working how many you get, after sharing a number between another number. You can use place value charts to ...

Diagnosis of rheumatoid arthritis (RA) is largely clinical, based on key historic and physical findings and serial observation of symptoms, signs and response to therapies. Observation during the ...

XRP ETFs pulled in $483M during December while Bitcoin ETFs lost $1.09B and Ethereum shed $564M. XRP spot price fell 15% to $1.77 despite institutional inflows. Retail selling dominated while ...

J.K. Rowling's name has become synonymous with her legendary "Harry Potter" book series, but she is also famous for something more controversial: her public and often contentious views on the ...