Open Access

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2020-10-21
13:34
OpenAccess [FZJ-2020-04116] Journal Article
et al
Membrane stiffness and myelin basic protein binding strength as molecular origin of multiple sclerosis
Myelin basic protein (MBP) and its interaction with lipids of the myelin sheath plays an important part in the pathology of multiple sclerosis (MS). Previous studies observed that changes in the myelin lipid composition lead to instabilities and enhanced local curvature of MBP-lipid multilayer structures. [...]
OpenAccess: s41598-020-73671-3 - Download fulltextPDF Download fulltextPDF (PDFA); Myelin_ScieRep-accepted - Download fulltextPDF Download fulltextPDF (PDFA);
ddc:600

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2020-10-21
10:39
OpenAccess [FZJ-2020-04110] Journal Article
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Mapping the conducting channels formed along extended defects in SrTiO3 by means of scanning near-field optical microscopy
Mixed ionic-electronic-conducting perovskites such as SrTiO3 are promising materials to be employed in efficient energy conversion or information processing. These materials exhibit a self-doping effect related to the formation of oxygen vacancies and electronic charge carriers upon reduction. [...]
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ddc:600

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2020-10-19
10:43
OpenAccess [FZJ-2020-04081] Journal Article
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Magnetic skyrmions, chiral kinks, and holomorphic functions
We present a novel approach to understanding the extraordinary diversity of magnetic skyrmion solutions. Our approach combines an original classification scheme with efficient analytical and numerical methods. [...]
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ddc:530

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2020-10-19
09:24
OpenAccess [FZJ-2020-04078] Poster (Other)
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Ultra-high frequency spectrum of neuronal activity
Bernstein Konferenz 2020, BC20, onlineonline, Germany, 29 Sep 2020 - 1 Oct 20202020-09-292020-10-01
The activity of spiking network models exhibits fast oscillations (>200 Hz), caused by inhibition-dominated excitatory-inhibitory loops [1, 2]. As correlations between pairs of neurons are weak in nature and models, fast oscillations have so far received little attention.Today’s models of cortical networks with natural numbers of neurons and synapses [3] remove any uncertainty about down-scaling artifacts [4] [...]
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2020-10-17
08:24
OpenAccess [FZJ-2020-04070] Journal Article

Analysis of Space Usage on Train Station Platforms Based on Trajectory Data
Sustainability 12(20), 8325 - () [10.3390/su12208325]
Functionality of railway platforms could be assessed by Level of Service concepts. They describe interactions between humans and the built environment and allow to rate risks due to overcrowding. [...]
OpenAccess: sustainability-12-08325 - Download fulltextPDF Download fulltextPDF (PDFA); manuscript.v7-1 - Download fulltextPDF Download fulltextPDF (PDFA);
ddc:690

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2020-10-16
18:52
OpenAccess [FZJ-2020-04069] Journal Article
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Memory reactivation in rat medial prefrontal cortex occurs in a subtype of cortical UP state during slow-wave sleep
Philosophical transactions / B 375(1799), 20190227 - () [10.1098/rstb.2019.0227]
Interaction between hippocampal sharp-wave ripples (SWRs) and UP states, possibly by coordinated reactivation of memory traces, is conjectured to play an important role in memory consolidation. Recently, it was reported that SWRs were differentiated into multiple subtypes. [...]
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ddc:570

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2020-10-16
18:47
OpenAccess [FZJ-2020-04068] Journal Article

Momentum-dependence in the infinitesimal Wilsonian renormalization group
Wilson's original formulation of the renormalization group is perturbative in nature. We here present an alternative derivation of the infinitesimal momentum shell renormalization group, akin to the Wegner and Houghton scheme, that is a priori exact. [...]
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2020-10-16
18:01
OpenAccess [FZJ-2020-04067] Journal Article
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Carrier lifetime of GeSn measured by spectrally resolved picosecond photoluminescence spectroscopy
We present an experimental setup capable of time-resolved photoluminescence spectroscopy for photon energies in the range of 0.51 to 0.56 eV with an instrument time response of 75 ps. The detection system is based on optical parametric three-wave mixing, operates at room temperature, has spectral resolving power, and is shown to be well suited for investigating dynamical processes in germanium-tin alloys. [...]
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ddc:620

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2020-10-16
15:27
OpenAccess [FZJ-2020-04066] Journal Article
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Synthesis of Ni-Rich Layered-Oxide Nanomaterials with Enhanced Li-Ion Diffusion Pathways as High-Rate Cathodes for Li-Ion Batteries
Ni-rich LiNi0.6Co0.2Mn0.2O2 nanomaterials with a high percentage of exposed {010} facets have been prepared by surfactant-assisted hydrothermal synthesis followed by solid-state reaction. Characterization by X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) confirmed that the particles have enhanced the growth of nanocrystal planes in favor of Li-ion diffusion. [...]
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ddc:540

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2020-10-16
15:21
Embargoed OpenAccess [FZJ-2020-04065] Journal Article

Asymmetric double-layer charging in a cylindrical nanopore under closed confinement
This article presents a physical–mathematical treatment and numerical simulations of electric double layer charging in a closed, finite, and cylindrical nanopore of circular cross section, embedded in a polymeric host with charged walls and sealed at both ends by metal electrodes under an external voltage bias. Modified Poisson–Nernst–Planck equations were used to account for finite ion sizes, subject to an electroneutrality condition. [...]
Published on 2020-02-24. Available in OpenAccess from 2021-02-24.: Download fulltextPDF Download fulltextPDF (PDFA);
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