منابع مشابه
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
متن کاملMeasurement 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...
متن کاملOnce 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 ...
متن کاملSingularity: Raychaudhuri Equation once again
I first recount Raychaudhuri’s deep involvement with the singularity problem in general relativity. I then argue that precisely the same situation has arisen today in loop quantum cosmology as obtained when Raychaudhuri discovered his celebrated equation. We thus need a new analogue of the Raychaudhuri equation in quantum gravity. PACS numbers: 04.20.Jb, 04.2.Cv, 98.80 Dr 1 Singularity and AKR ...
متن کاملNot Again: Benzodiazepines Once More Under Attack.
It seems that we are again in the midst of a new storm of concern about an epidemic of benzodiazepine (BZ) overuse, misuse, and abuse. The first concern, in the 1980s, posited BZs as an epidemic of excessive prescribing and was frequently mentioned in books, movies, and numerous lay magazine articles. There was also concern that BZs were abused or misused, caused addiction with difficult withdr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 2011
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.331.6019.825-c