Tootfinder

This https://arxiv.org/abs/2210.07555 has been replaced.
link: https://scholar.google.com/scholar?q=a

A multiple-timing analysis of temporal ratcheting
We develop a two-timing perturbation analysis to investigate the existence of temporal ratchets in an exemplary system of a particle moving in a tank of fluid in response to an external vibration of the tank. We consider two-mode vibrations with angular frequencies $ω$ and $αω$, where $α$ is a rational number. It has been established, in other physical systems, that if $α$ is a ratio of odd and even integers (e.g., $\tfrac{2}{1}$, $\tfrac{3}{2}$, $\tfrac{4}{3}$), the system yields a net re…

Honduras Ratchets Up Battle With Crypto-Libertarian Investors, Rejects World Bank Court
After the Honduran president repealed a law granting unfettered authority to outside investors, the cryptoquistadors took the dispute to a World Bank arbitration court.
https://thein…

Honduras Ratchets Up Battle With Crypto-Libertarian Investors, Rejects World Bank Court
After the Honduran president repealed a law granting unfettered authority to outside investors, the crypto groups took the dispute to World Bank arbitration court.

Trump ratchets up attacks on judge and prosecutor ahead of hush-money trial
A defiant Donald Trump continued to attack the prosecutor, judge and a key witness in the New York hush-money criminal trial against him,
a signal that the former president will continue to embrace bombast as jury selection in the case begins on Monday.
Trump described what will be the first criminal trial against a former US president as a “communist show trial”, during a rally in Schnecksville, Pe…

Circular THz ratchets in a 2D-modulated Dirac system
M. Hild, I. Yahniuk, L. E. Golub, J. Amann, J. Eroms, D. Weiss, K. Watanabe, T. Taniguchi, S. D. Ganichev
https://arxiv.org/abs/2402.17540

Circular THz ratchets in a 2D-modulated Dirac system
We report on the observation of the circular ratchet effect excited by terahertz laser radiation in a specially designed two-dimensional metamaterial consisting of a graphene monolayer deposited on a graphite gate patterned with an array of triangular antidots. We show that a periodically driven Dirac fermion system with spatial asymmetry converts the a.c. power into a d.c. current, whose direction reverses when the radiation helicity is switched. The circular ratchet effect is demonstrated for…

Trump takes bizarre turn as he ratchets up racist rhetoric against migrants
Reaching for racist rhetoric bizarre even for him, Donald Trump compared undocumented migrants to the US to Hannibal Lecter, the serial killer and cannibal famously played by Sir Anthony Hopkins in the Oscar-winning 1991 film The Silence of the Lambs.

Trump takes bizarre turn as he ratchets up racist rhetoric against migrants
Reaching for racist rhetoric bizarre even for him, Donald Trump compared undocumented migrants to the US to Hannibal Lecter, the serial killer and cannibal famously played by Sir Anthony Hopkins in the Oscar-winning 1991 film The Silence of the Lambs.