The same once again please: a pedagogical introduction to normalizers

Press that button again, please.

Schwarzschild and Synge Once Again

We complete the historical overview about the geometry of a Schwarzschild black hole at its horizon by emphasizing the contribution made by J. L. Synge in 1950 to its clarification. KEY: Schwarzschild solution; Synge; black hole; horizon

Measurement without Theory, Once Again

Bailey and Collins (2011) argue that Greenwood, Seshadri, and Vandenbroucke’s (2005) hypothesis that the baby boom was partly due to a burst of productivity in the household sector is not supported by evidence. This conclusion is based on regression results showing that appliance ownership is negatively correlated with fertility. They also argue that the Amish, who limit the use of modern techn...

Pedagogical Introduction to Extra Dimensions

Most physicists agree that some form of New Physics (NP) must exist beyond the Standard Model(SM)–we simply don’t know what it is yet. Though there are many prejudices based on preconceived ideas about the form this NP may take, it will be up to experiments at future colliders, the LHC and ILC, to reveal its true nature. While we are all familiar with the list of these theoretical possibilities...

Once again about interchain hopping

Renormalization group equations and a phase diagram are derived for a system of two chains with a single-electron hopping between chains in order to correct the results of a recent paper by F. V. Kusmartsev, A. Luther, and A. Nersesyan, Pis’ma v Zh. Exp. Teor. Fiz. 55, 692 (1992) [JETP Lett. 55, 724 (1992)]. In a recent paper [1], the effect of a single-electron hopping (SEH) between chains in ...