Results 61 to 70 of about 610,362 (284)
Acta Polytechnica, 2007 We briefly explain some simple arguments based on pseudo Hermiticity, supersymmetry and PT-symmetry which explain the reality of the spectrum of some non-Hermitian Hamiltonians.
A. Fring
doaj
On the Singular Spectrum of the Radiation Operator for Multiple and Extended Observation Domains
International Journal of Antennas and Propagation, 2013 The problem of studying how spatial diversity impacts on the spectrum (singular values) of the radiation operator is addressed. This topic is of great importance because of its connection with the so-called number of degrees of freedom concept which in ...
Raffaele Solimene +3 more
doaj +1 more source
Specific EEG sleep pattern in the prefrontal cortex in primary insomnia. [PDF]
PLoS ONE, 2015 OBJECTIVE:To assess the specific prefrontal activity in comparison to those in the other main cortical areas in primary insomnia patients and in good sleepers. METHODS:Fourteen primary insomnia patients and 11 good sleepers were included in the analysis.
Joy Perrier +6 more
doaj +1 more source
Boosted Simon-Wolff Spectral Criterion and Resonant Delocalization
, 2015 Discussed here are criteria for the existence of continuous components in the spectra of operators with random potential. First, the essential condition for the Simon-Wolff criterion is shown to be measurable at infinity. By implication, for the iid case
Aizenman, Michael, Warzel, Simone
core +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Phenomenology of buoyancy-driven turbulence: recent results
New Journal of Physics, 2017 In this paper, we describe the recent developments in the field of buoyancy-driven turbulence with a focus on energy spectrum and flux. Scaling and numerical arguments show that the stably-stratified turbulence with moderate stratification has kinetic ...
Mahendra K Verma +2 more
doaj +1 more source
Masterstudium auch für Fachhochschulen ein Muss!
CHIMIA, 2006 Arguments for the introduction of master programs at the Universities of Applied Sciences (UAS) are presented. The concept of a consecutive Bologna master program for Chemistry and Life Sciences currently elaborated by members of the concerned ...
Jean-Nicolas Aebischer
doaj +1 more source
Vortex Production at Phase Transitions in Nonrelativistic and Relativistic Media [PDF]
, 1995 We examine string (vortex) formation at a quench for a weakly-coupled global U(1) theory when the excitation spectrum is non-relativistic. It is so similar to vortex production in the corresponding relativistic plasma as to reinforce arguments for the ...
Rivers, R. J.
core +1 more source
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
Advances in High Energy Physics, 2018 The paper deals with nonthermal radiation spectrum by tunnelling mechanism with correction due to the generalized uncertainty principle (GUP) in the background of noncommutative geometry.
Sourav Haldar +2 more
doaj +1 more source