Peter N. Davies (1927–2020)

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Belinda Gray , Beverly Sara Muhlhausler , Peter Stephen Wynford Davies , Luis Vitetta

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Definable Davies’ Theorem

We prove the following descriptive set-theoretic analogue of a Theorem of R.O. Davies: Every Σ2 function f : R× R → R can be represented as a sum of rectangular Σ2 functions if and only if all reals are constructible.

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Profile: James Davies

has provoked a lot of interest and comment. For those who haven't read it, how would you summarise the argument? In a nutshell, I argue that psychiatry over the past 40 years, under the dominance of the medical or 'technological' model, has done a lot of harm in the name of helping vulnerable people. Not intentionally, I hasten to add, but as an outcome of taking the medical model too far. Your...

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QnAs with Peter N. Devreotes. Interview by Prashant Nair.

P eter N.Devreotes,aprofessorofcell biology at JohnsHopkinsUniversity who was elected to the National Academy of Sciences in 2005, studies how animal cells navigate their physical environments using a process called chemotaxis,whichhelps cellsmoveaway fromor toward chemical cues. First described in the late 1800s, this deceptively simple process ofdirectedmovementcouldhelpresearchers answer wei...

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Non-Bunch-Davies statistical anisotropies

We introduce a generic mechanism that can extend the effects of relic anisotropies at the beginning of inflation to relatively much shorter scales in density perturbations. This is induced by non-Bunch-Davies states of the quantum fluctuations, and can show up in the non-oscillatory components of the density perturbations. This mechanism works for general forms of anisotropies, and, to illustra...

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ژورنال

عنوان ژورنال: The Mariner's Mirror

سال: 2020

ISSN: 0025-3359,2049-680X

DOI: 10.1080/00253359.2020.1778299