cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Statistical Characteristics of the Heliospheric Plasma and Magnetic Field at the Earth's Orbit during Four Solar Cycles 20-23
Creators: name: Dmitriev, A. V.
name: Suvorova, A. V.
name: Veselovsky, I. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The review presents analysis and physical interpretation of available statistical data about solar wind plasma and interplanetary magnetic field (IMF) properties as measured in-situ at 1 A.U. by numerous space experiments during time period from 1964 to 2007. The experimental information have been collected in the OMNI Web/NSSDC data set of hourly averaged heliospheric parameters for last four solar cycles from 20th to 23rd. We studied statistical characteristics of such key heliospheric parameters as solar wind proton number density, temperature, bulk velocity, and IMF vector as well as dimensionless parameters. From harmonic analysis of the variations of key parameters we found basic periods of 13.5 days, 27 days, 1 year, and ~11 years, which correspond to rotation of the Sun, Earth and to the solar cycle. We also revealed other periodicities such as specific five-year plasma density and temperature variations, which origin is a subject of discussion. We have found that the distribution of solar wind proton density, temperature and IMF is very close to a log-normal function, while the solar wind velocity is characterized by a very broad statistical distribution. Detailed study of the variability of statistical distributions with solar activity was performed using a method of running histograms. In general, the distributions of heliospheric parameters are wider during maximum and declining phase of the solar cycle. More complicated behavior was revealed for the solar wind velocity and temperature, which distribution is characterized by two- or even tree-peak structure in dependence on the phase of solar cycle. Our findings support the concepts of solar wind sources in the open, closed and intermittent magnetic regions on the Sun.
description: 65 pages, 17 figures, 4 tables, chapter 2 in Handbook on solar wind
Literature Studies of Women's Political Rights in Afghanistan after the fall of The Taliban Regime
Creators: name: Kibtiah, Tia Mariatul
Publisher: name: Zenodo
Year: 2024

description: This article is a crucial resource for IR studies, particularly gender equality in politics. The case study focuses on Afghanistan, a country where political rights are still subject to discrimination and oppression.The previous studies presented in this article are crucial for advancing research in this field
Gallensäuren als wohlfeile Bausteine für die Synthese von Cephalostatinanaloga
Creators: name: Scholz, Ulrich
Publisher: name: Hannover : Universität
Year: 1999
Subjects: subject: cephalostatins
subject: bile acids
subject: double bond rearrangement
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
The Coulomb problem on a 3-sphere and Heun polynomials
Creators: name: Bellucci, Stefano
name: Yeghikyan, Vahagn
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The paper studies the quantum mechanical Coulomb problem on a 3-sphere. We present a special parametrization of the ellipto-spheroidal coordinate system suitable for the separation of variables. After quantization we get the explicit form of the spectrum and present an algebraic equation for the eigenvalues of the Runge-Lentz vector. We also present the wave functions expressed via Heun polynomials.
description: 8 pages, PACS 03.65.-w, 02.30.Ik, 14.80.Hv; typo in eqs. (9) and (12) corrected
Förderung der interkulturellen Kompetenz durch die Verlagerung von Studienanteilen ins Ausland
Creators: name: Thiem, Silke
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität
Year: 2019
Subjects: subject: Intercultural competence
subject: Teacher education at VET schools
subject: Study abroad
subject: Interkulturelle Kompetenz
subject: Lehramt an berufsbildenden Schulen
subject: Auslandsaufenthalt
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie

description: Mit der voranschreitenden Europäisierung des Wirtschafts- und Bildungsraumes sehen sich Lehrkräfte damit konfrontiert, ihre Schülerinnen und Schüler mit der Vermittlung von interkulturellen Kompetenzen auf veränderte Arbeits- und Lebensveränderungen vorzubereiten. Die Leibniz Universität Hannover ist deswegen gefragt, ihren Lehramtsstudierenden für berufsbildenden Schulen darauf vorzubereiten. Auslandsaufenthalte können dabei den Erwerb von interkultureller Kompetenz unterstützen. In einer quantitativen Erhebung wurden Studierende des beruflichen Lehramtes nach ihren Vorstellungen, Herausforderungen und Interesse nach Auslandsaufenthalten befragt. Anhand des Beispiel Schweden wurden Möglichkeiten erschlossen, wie Lehramtsstudierende in der beruflichen Bildung im Ausland interkulturelle Kompetenz erlernen können. Dazu wurden Möglichkeiten ein Auslandspraktikum und -studium in Schweden durchzuführen, unter Berücksichtigung der Regelungen der Universität, zur Anerkennung untersucht. Auf Grundlage bisheriger Angebote zur Förderung der interkulturellen Kompetenz für Studierende des beruflichen Lehramtes an der Leibniz Universität und den erhobenen Informationen wurden Maßnahmen und Empfehlungen formuliert werden, die diese Angebote weiterentwickeln können.
description: With the advancing Europeanization of the economic and educational area, teachers are confronted with the task of preparing their students for changes in work and life by teaching them intercultural competencies. Leibniz University of Hanover is therefore called upon to prepare its student teachers for vocational education. Studies abroad can support the acquisition of intercultural competence. In a quantitative survey, students of vocational teacher training were asked about their ideas, challenges and interest in studying abroad. Using Sweden as an example, possibilities were opened up as to how student teachers in vocational education can learn intercultural competence abroad. For this purpose, possibilities to carry out an internship and study abroad in Sweden were investigated, taking into account the regulations of the university, for recognition. On the basis of previous offers for the promotion of intercultural competence for students of vocational education at Leibniz University and the collected information, measures and recommendations were formulated that can further develop these offers.
title: Biological and Conference Opinion on the Proposed Implementation of a Program for the Issuance of Permits for Research and Enhancement Activities on Threatened and Endangered Sea Turtles Pursuant to Section 10(a) of the Endangered Species Act (2018 Reinitiation)
titleType: Other
Creators: name: United States. National Marine Fisheries Service, Office of Protected Resources (OPR)
Publisher: name: United States. National Marine Fisheries Service, Office of Protected Resources (OPR)
Year: 2019

description: OPR-2018-00087
Gewinnung von Ethanol aus wäßriger Lösung durch Membranextraktion und enzymatischer Esterbildung mit langkettigen Carbonsäuren
Creators: name: Burfeind, Jens
Publisher: name: Hannover : Universität
Year: 1999
Subjects: subject: Membrane extraction
subject: lipase
subject: esterification
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Analysis of combined HERA data in the Impact-Parameter dependent Saturation model
Creators: name: Rezaeian, Amir H.
name: Siddikov, Marat
name: Van de Klundert, Merijn
name: Venugopalan, Raju
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Impact-Parameter dependent Saturation Model (IP-Sat) is a simple dipole model that incorporates key features of the physics of gluon saturation and matches smoothly to the perturbative QCD dipole expression at large Q^2 for a given x. It was previously shown that the model gives a good description of HERA data suggesting evidence for gluon saturation effects at small x. The model has also been applied to proton-proton and proton-nucleus collisions and provides the basis for the IP-Glasma model of initial conditions in heavy ion collisions. Here we present a reanalysis of available data in electron-proton collisions at small Bjorken-x, including the recently released combined data from the ZEUS and H1 collaborations. We first confront the model to the high precision combined data for the reduced cross-section and obtain its parameters. With these parameters fixed, we compare model results to data for the structure function F_2, the longitudinal structure function F_L, the charm structure function F_2^{c\bar{c}}, exclusive vector meson (J/ψ, ϕand ρ) production and Deeply Virtual Compton Scattering (DVCS). Excellent agreement is obtained for the processes considered at small x in a wide range of Q^2. Our results strongly hint at universality of the IP-Sat dipole amplitude and the extracted impact-parameter distribution of the proton. They also provide a benchmark for further refinements in studies of QCD saturation at colliders.
description: 17 pages, 18 figures
Aufbruch in Nukleon-Deuteron Streuung
Creators: name: Chmielewski, Karsten
Publisher: name: Hannover : Universität
Year: 1999
Subjects: subject: Neuron-deuteron scattering with break-up
subject: three-nucleon system
subject: delta-isobar-excitation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Four-nucleon system with Delta-isobar excitation
Creators: name: Deltuva, A.
name: Fonseca, A.C.
name: Sauer, P.U.
Publisher: name: Amsterdam : Elsevier Science
Year: 2008
Subjects: subject: four-nucleon
subject: bound state
subject: scattering
subject: Delta-isobar
subject: many-nucleon forces
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The four-nucleon bound state and scattering below three-body breakup threshold are described based on the realistic coupled-channel potential CD Bonn + Delta which allows the excitation of a single nucleon to a Delta isobar. The Coulomb repulsion between protons is included. In the four-nucleon system the two-baryon coupled-channel potential yields effective two-, three- and four-nucleon forces, mediated by the Delta isobar and consistent with each other and with the underlying two-nucleon force. The effect of the four-nucleon force on the studied observables is much smaller than the effect of the three-nucleon force. The inclusion of the A isobar is unable to resolve the existing discrepancies with the experimental data.
Identifizierung und Charakterisierung carotinoidabbauender Enzyme aus Basidiomyceten
Creators: name: Scheibner, Manuela
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2006
Subjects: subject: Carotinoidabbau
subject: Basidiomycet
subject: DyP
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Nonlinear coherent states for the Susskind-Glogower operators
Creators: name: León-Montiel, Roberto de Jesús
name: Moya-Cessa, Hector Manuel
name: Soto-Eguibar, Francisco
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We construct nonlinear coherent states for the Susskind-Glogower operators by the application of the displacement operator on the vacuum state. We also construct nonlinear coherent states as eigenfunctions of a Hamiltonian constructed with the Susskind-Glogower operators. We generalize the solution of the eigen- function problem to an arbitrary |mi initial condition. To analyze the obtained results, we plot the Husimi Q function, the photon number probability distribution and the Mandel Q-parameter. For both cases, we find that the constructed states exhibit interesting nonclassical features, such as amplitude squeezing and quantum interferences due to a self-splitting into two coherent-like states. Additionally, we show that non- linear coherent states may be modeled by propagating light in semi-infinite arrays of optical fibers.
description: 22 pages, 8 figures, Conference Quantum Optics V, Published as: REVISTA MEXICANA DE F\'ISICA S 57 (3) 133-147
Quasi-static evolution and congested crowd transport
Creators: name: Alexander, Damon
name: Kim, Inwon
name: Yao, Yao
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the relationship between Hele-Shaw evolution with drift, the porous medium equation with superharmonic drift, and a congested crowd motion model originally proposed by [MRS]- [MRSV]. We first use viscosity solutions to show that the porous medium equation solutions converge to the Hele- Shaw solution as the exponent tends to infinity. Next, using of the gradient flow structure of both the porous medium equation and the crowd motion model, we prove that the porous medium equation solutions also converge to the congested crowd motion. Combining these results lets us deduce that in the case where the initial data to the crowd motion model is given by a patch, or characteristic function, the solution evolves as a patch that is the unique solution to the Hele-Shaw problem. While proving our main results we also obtain a comparison principle for solutions to the minimizing movement scheme based on the Wasserstein metric, of independent interest.
description: 36 pages, 5 Figures
Forschungsdatenmanagement in den systemischen Neurowissenschaften: Herausforderungen und Praxislösungen
Creators: name: Wagner, Adina Svenja
Publisher: name: Zenodo
Year: 2023

description: Lightning talk on RDM challenges in systems neuroscience at the research data management day 2023 at the HHU Düsseldorf.
https://www.fdm.hhu.de/veranstaltungen/tag-der-forschungsdaten-in-nrw-2023
S and T for SCFTs
Creators: name: Heckman, Jonathan J.
name: Kumar, Piyush
name: Wecht, Brian
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We develop a general set of methods for computing the oblique electroweak parameters S and T for bottom-up and top-down motivated scenarios in which the Higgs weakly mixes with a superconformal extra sector. In addition to their utility in phenomenological studies, the observables S and T are also of purely theoretical interest as they are defined by correlation functions of broken symmetries. We show that in the limit where the extra sector enjoys an approximate custodial symmetry, the leading contributions to S and T can be recast as calculable data of the theory in the conformal phase. Using this result, we also obtain model-independent bounds on the sign and size of oblique electroweak corrections from unitary superconformal theories.
description: 31 pages
Proteolyse von Apolipoprotein A-l
Creators: name: Haas, Regina
Publisher: name: Hannover : Universität
Year: 1999
Subjects: subject: Apolipoprotein A-l
subject: high density lipoproteins (HDL)
subject: proteolysis
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Spanioplon Topsent 1890
Creators: name: Morrow, Christine
name: Cárdenas, Paco
name: Boury-Esnault, Nicole
name: Picton, Bernard
name: Mccormack, Grace
name: Soest, Rob Van
name: Collins, Allen
name: Redmond, Niamh
name: Maggs, Christine
name: Sigwart, Julia
name: Allcock, Louise A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Porifera
Demospongiae
Poecilosclerida
Hymedesmiidae
Spanioplon

description: GENUS SPANIOPLON TOPSENT, 1890
Diagnosis: See Van Soest (2002).
Type species: Spanioplon armaturum (Bowerbank, 1866).
Included species: In WPD, Van Soest et al. (2018) listed three valid species. We have examined material only of the type species, Spanioplon armaturum (Bowerbank, 1866).
description: Published as part of Morrow, Christine, Cárdenas, Paco, Boury-Esnault, Nicole, Picton, Bernard, Mccormack, Grace, Soest, Rob Van, Collins, Allen, Redmond, Niamh, Maggs, Christine, Sigwart, Julia & Allcock, Louise A., 2019, Integrating morphological and molecular taxonomy with the revised concept of Stelligeridae (Porifera: Demospongiae), pp. 31-81 in Zoological Journal of the Linnean Society 187 on page 73
Die Anaphylatoxine C3a und C5a und ihre zellulären Rezeptoren : molekulare Untersuchungen zur Ligand/Rezeptor-Interaktion ; 1. Molekulare Klonierung und Charakterisierung des humanen C3a-Rezeptors ; 2. Generierung und Charakterisierung von C3a-Rezeptor/C5a-Rezeptor-Chimären ; 3. Charakterisierung von C-terminalen C5a-Mutanten
Creators: name: Crass, Torsten
Publisher: name: Hannover : Universität
Year: 1999
Subjects: subject: C3a receptor
subject: C5a receptor
subject: anaphylatoxins
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
Frequenzstabilisierung eines Nd:YAG-Hochleistungs-Laser-Systems für den Gravitationswellendetektor GEO 600
Creators: name: Brozek, Oliver Sascha
Publisher: name: Hannover : Universität
Year: 1999
Subjects: subject: Diode-pumped Nd:YAG lasers
subject: injection locking
subject: frequency stabilization
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Coloring Hypergraphs Induced by Dynamic Point Sets and Bottomless Rectangles
Creators: name: Asinowski, Andrei
name: Cardinal, Jean
name: Cohen, Nathann
name: Collette, Sébastien
name: Hackl, Thomas
name: Hoffmann, Michael
name: Knauer, Kolja
name: Langerman, Stefan
name: Lasoń, Michał
name: Micek, Piotr
name: Rote, Günter
name: Ueckerdt, Torsten
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Geometry (cs.CG)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We consider a coloring problem on dynamic, one-dimensional point sets: points appearing and disappearing on a line at given times. We wish to color them with k colors so that at any time, any sequence of p(k) consecutive points, for some function p, contains at least one point of each color. We prove that no such function p(k) exists in general. However, in the restricted case in which points appear gradually, but never disappear, we give a coloring algorithm guaranteeing the property at any time with p(k)=3k-2. This can be interpreted as coloring point sets in R^2 with k colors such that any bottomless rectangle containing at least 3k-2 points contains at least one point of each color. Here a bottomless rectangle is an axis-aligned rectangle whose bottom edge is below the lowest point of the set. For this problem, we also prove a lower bound p(k)>ck, where c>1.67. Hence for every k there exists a point set, every k-coloring of which is such that there exists a bottomless rectangle containing ck points and missing at least one of the k colors. Chen et al. (2009) proved that no such function $p(k)$ exists in the case of general axis-aligned rectangles. Our result also complements recent results from Keszegh and Palvolgyi on cover-decomposability of octants (2011, 2012).
description: A preliminary version was presented by a subset of the authors to the European Workshop on Computational Geometry, held in Assisi (Italy) on March 19-21, 2012
Reduzierung instationärer Betriebszustände beim Gesenkschmieden
Creators: name: Dohmann, Jürgen
Publisher: name: Hannover : Universität
Year: 1999
Subjects: subject: Forging
subject: quality assurance
subject: process control
subject: restart optimisation
subject: Dewey Decimal Classification::600 | Technik

description: [no abstract]
BBU effect in an ERL-FEL two-purpose test facility
Creators: name: Cui, Xiao-Hao
name: Jiao, Yi
name: Wang, Jiu-Qing
name: Wang, Shu-Hong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Both the Energy Recovery Linac (ERL) and Free Electron laser (FEL) are considered to be candidates of the fourth generation light source. It is proposed to combine FEL into an ERL facility to integrate the advantages of both ERL and FEL, and to realize a compact two-purpose light source. A test facility to verify this principle is being designed at the Institute of High Energy Physics, Beijing. One main concern is the beam breakup (BBU) instability which limits the available beam current. To this end, we developed a numerical simulation code to calculate the BBU threshold, which is found to have only a small reduction even in a high-FEL-bunch-charge operation mode, compared with that in the case with ERL bunches only. However, even with ERL beam current far below BBU threshold, we observed a fluctuation of the central orbit of the ERL bunches in the presence of FEL beam. We then present a physical model of BBU and understand the mechanism of the orbit-fluctuation in an ERL-FEL two-purpose machine. We found that by choosing an appropriate FEL bunch repetition rate, the central orbit fluctuation amplitude can be well controlled.
description: 10 pages, 9 figures
Tibet- Lama Standard Bearer
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2020
Subjects: Tibetans
Lamas

description: Raphael Tuck & Sons postcard featuring a lama in a brilliant red coat and fluffy hat. He is riding a horse and holding a standard bearer in its Oilette Series on Tibet. Painting is adapted from "Tibet" by A. Henry Savage Landor.
Moduli stabilization and cosmology of type IIB on SU(2)-structure orientifolds
Creators: name: Caviezel, Claudio
name: Wrase, Timm
name: Zagermann, Marco
Publisher: name: Heidelberg : Springer
Year: 2010
Subjects: subject: Flux compactifications
subject: dS vacua in string theory
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We consider type IIB flux compactifications on six-dimensional SU(2)-structure manifolds with O5- and O7-planes. These six-dimensional spaces allow not only for F-3 and H-3 fluxes but also for F-1 and F-5 fluxes. We derive the four-dimensional N = 1 scalar potential for such compactifications and present one explicit example of a fully stabilized AdS vacuum with large volume and small string coupling. We then discuss cosmological aspects of these compactifications and derive several no-go theorems that forbid dS vacua and slow-roll inflation under certain conditions. We also study concrete examples of cosets and twisted tori and find that our no-go theorems forbid dS vacua and slow-roll inflation in all but one of them. For the latter we find a dS critical point with is an element of numerically zero. However, the point has two tachyons and eta-parameter eta approximate to -3.1.
Identification of novel potential hepatitis E virus inhibitors as seen from molecular docking, free energy landscape and molecular dynamics simulation studies
Creators: name: Moharana, Maheswata
name: Pattanayak, Subrat Kumar
name: Khan, Fahmida
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Hepatitis E virus (HEV), a non-enveloped and globular protein, is the primary cause of acute hepatitis. The structural capsid protein encoded by HEV is the open-reading frame 2 gene. However, there are presently no efficient and targeted therapies for HEV infections. This research aims to screen out the effective bioactive compounds from Paederia foetida, which may be novel potential inhibitors of Hepatitis E. Despite various research in recent decades, the molecular picture of the interaction between the Hepatitis E virus and iridoid glycosides from Paederia foetida remains vague. We performed in silico ADMET predictions of the phytochemicals of Paederia foetida, and the findings revealed a reasonably good ADMET profile for the twenty chosen phytochemicals. Herein, the twenty phytochemicals were submitted to an analysis of molecular docking studies with the HEV protein and the analysis suggested that asperuloside, ellagic acid, friedlin, lupeol and paederoside as the most potential HEV inhibitors among the selected phytochemicals. Subsequently, the stability of these phytochemical complexes was studied by using molecular dynamic (MD) simulation of 100 ns. Based on our computational study, lupeol and paederoside phytochemicals obtained from the paederia foetida plant may be used as potential drug candidates for the inhibition of hepatitis E.
Atomistic analysis of the effect of cholesterol on cancerous membrane protein system: unfolding and associated resistance stresses under strain
Creators: name: Gautam, Diplesh
name: Owhal, Ayush
name: Rao, Venkatesh K. P.
name: Belgamwar, Sachin U.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: The low-cholesterol cancerous environment can affect the biophysical behaviour of transmembrane proteins. It is difficult to experiment and measure the dynamics of membrane protein systems when cholesterol concentration is decreasing. In this work, atomistic approach is adopted to investigate the transmembrane protein behaviour during lipid-bilayer separation under strain at different cholesterol concentrations. Finding shows that the decreasing cholesterol across membrane protein system leads to an increase in area-per-lipid and average tilt angle by 6.4% and 62.6%, respectively with decreased order parameter. This observation indicates that the decreased cholesterol concentration in a cancerous environment hinders the bonding and compactness of membrane protein system. Stretching and unfolding of protein were observed during bilayer separation and the resistance stresses decreased by 68.01% for decreasing cholesterol. The cholesterol molecules observed to be bonded with proteins. The investigation revealed that the cholesterol is an important constituent of membrane that impedes the diffusion and resist the detachment of protein at high concentration. Thereby, the transmembrane proteins can retain end terminals positions across the membrane and resist functional failure. This study showed that decreased cholesterol concentration causes significant changes in the biophysical behaviour of the membrane protein system that could trigger the mechanosensitivity of transmembrane proteins under mechanical perturbation.
Assouad type dimensions and homogeneity of fractals
Creators: name: Fraser, Jonathan M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Metric Geometry (math.MG)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 28A80, 28A78, 28A20, 28C15

description: We investigate several aspects of the Assouad dimension and the lower dimension, which together form a natural `dimension pair'. In particular, we compute these dimensions for certain classes of self-affine sets and quasi-self-similar sets and study their relationships with other notions of dimension, like the Hausdorff dimension for example. We also investigate some basic properties of these dimensions including their behaviour regarding unions and products and their set theoretic complexity.
description: 40 pages, 6 figures
Mutinus proximus Berk. & Broome, J. Linn. Soc., Bot.
Creators: name: Karunarathna, Samantha C.
name: Priyashantha, K Hasith
name: Tibpromma, Saowaluck
name: Galappaththi, Mahesh C. A.
name: Premarathne, Bhagya M.
name: Wijayawardene, Nalin N.
name: Wimalasena, Madhara K.
name: Jayalal, Udeni
name: Wickramanayake, Kawmini D.
name: Dangalla, Hasanka
name: Jayathunga, Hashini
name: Brahmanage, Rashika S.
name: Weerakoon, Gothamie
name: Ariyawansa, Kahandawa G. S. U.
name: Yapa, Neelamanie
name: Nanayakkara, Chandrika M.
name: Ediriweera, Surani
name: Fan, Xin-Lei
name: Kirk, Paul M.
name: Zhang, Gui-Qing
name: Ediriweera, Aseni
name: Bhat, Jayarama
name: Dawoud, Turki M.
name: Kumara, Wasantha
name: Deng, Chun Ying
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Phallales
Phallaceae
Mutinus
Mutinus proximus

description: M.  proximus Berk. & Broome, J. Linn. Soc., Bot. 14 (no. 73): 37 (1873) [1875]/IF: 203636
Typification Details: Holotype K (M), Gardner 93, On dead sticks, Sri Lanka
Reference: Berkeley & Broome (1875)
description: Published as part of Karunarathna, Samantha C., Priyashantha, K Hasith, Tibpromma, Saowaluck, Galappaththi, Mahesh C. A., Premarathne, Bhagya M., Wijayawardene, Nalin N., Wimalasena, Madhara K., Jayalal, Udeni, Wickramanayake, Kawmini D., Dangalla, Hasanka, Jayathunga, Hashini, Brahmanage, Rashika S., Weerakoon, Gothamie, Ariyawansa, Kahandawa G. S. U., Yapa, Neelamanie, Nanayakkara, Chandrika M., Ediriweera, Surani, Fan, Xin-Lei, Kirk, Paul M., Zhang, Gui-Qing, Ediriweera, Aseni, Bhat, Jayarama, Dawoud, Turki M., Kumara, Wasantha & Deng, Chun Ying, 2023, Checklist, typification details, and nomenclature status of Basidiomycota, originally described from Sri Lanka, pp. 1-86 in Phytotaxa 621 (1) on page 35, DOI: 10.11646/phytotaxa.621.1.1, http://zenodo.org/record/10065102
On the Testing of Ground--Motion Prediction Equations against Small--Magnitude Data
Creators: name: Beauval, Céline
name: Tasan, Hilal
name: Laurendeau, Aurore
name: Delavaud, Elise
name: Cotton, Fabrice
name: Guéguen, Philippe
name: Kuehn, Nicolas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Ground-motion prediction equations (GMPE) are essential in probabilistic seismic hazard studies for estimating the ground motions generated by the seismic sources. In low seismicity regions, only weak motions are available in the lifetime of accelerometric networks, and the equations selected for the probabilistic studies are usually models established from foreign data. Although most ground-motion prediction equations have been developed for magnitudes 5 and above, the minimum magnitude often used in probabilistic studies in low seismicity regions is smaller. Desaggregations have shown that, at return periods of engineering interest, magnitudes lower than 5 can be contributing to the hazard. This paper presents the testing of several GMPEs selected in current international and national probabilistic projects against weak motions recorded in France (191 recordings with source-site distances up to 300km, 3.8\leqMw\leq4.5). The method is based on the loglikelihood value proposed by Scherbaum et al. (2009). The best fitting models (approximately 2.5\leqLLH\leq3.5) over the whole frequency range are the Cauzzi and Faccioli (2008), Akkar and Bommer (2010) and Abrahamson and Silva (2008) models. No significant regional variation of ground motions is highlighted, and the magnitude scaling could be predominant in the control of ground-motion amplitudes. Furthermore, we take advantage of a rich Japanese dataset to run tests on randomly selected low-magnitude subsets, and check that a dataset of ~190 observations, same size as the French dataset, is large enough to obtain stable LLH estimates. Additionally we perform the tests against larger magnitudes (5-7) from the Japanese dataset. The ranking of models is partially modified, indicating a magnitude scaling effect for some of the models, and showing that extrapolating testing results obtained from low magnitude ranges to higher magnitude ranges is not straightforward.
Die Hecogenin-Cephalostatin-Route : ein Weg aus dem Spiroketal-Dilemma
Creators: name: Brunck, Annette
Publisher: name: Hannover : Universität
Year: 1999
Subjects: subject: Cephalostatins
subject: spiroketal
subject: furostenes
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Lifshitz from AdS at finite temperature and top down models
Creators: name: Korovin, Yegor
name: Skenderis, Kostas
name: Taylor, Marika
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We construct analytically an asymptotically Lifshitz black brane with dynamical exponent z=1+epsilon^2 in an Einstein-Proca model, where epsilon is a small parameter. In previous work we showed that the holographic dual QFT is a deformation of a CFT by the time component of a vector operator and the parameter epsilon is the corresponding deformation parameter. In the black brane background this operator additionally acquires a vacuum expectation value. We explain how the QFT Ward identity associated with Lifshitz invariance leads to a conserved mass and compute analytically the thermodynamic quantities showing that they indeed take the form implied by Lifshitz invariance. In the second part of the paper we consider top down Lifshitz models with dynamical exponent close to one and show that they can be understood in terms of vector deformations of conformal field theories. However, in all known cases, both the conformal field theory and its Lifshitz deformations have modes that violate the Breitenlohner-Freedman bound.
description: 35 pages
Interaction study of Dox-incorporated AS1411 aptamer and nucleolin by molecular dynamics simulation
Creators: name: Watcharapo, Paphada
name: Arunpanichlert, Jiraporn
name: Rotkrua, Pichayanoot
name: Soontornworajit, Boonchoy
name: Tantirungrotechai, Yuthana
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: AS1411 aptamer is able to recognise the nucleolin overexpressed on cancer cell membranes and has shown promise as a carrier of doxorubicin (Dox) to the cells. This study aimed to study the interaction between nucleolin and aptamers, in either the absence or presence of Dox, using molecular dynamics simulation. AS22nt aptamer was constructed by joining AS1411 aptamer with an additional 22 nucleotide (nt) sequence. NPT simulations were performed from initial docked configuration predicted by HDOCK. The binding of Dox to AS22nt aptamer occurred at the minor groove and the intercalation site in the duplex region. Nucleolin exhibited less flexibility upon binding to AS22nt. The dominant interaction between nucleolin and AS22nt was the electrostatic interaction. The presence of Dox in AS22nt affected the AS22nt-nucleolin interaction contributed by hydrogen bond, hydrophobic contact and ionic interaction. However, the presence of Dox in AS22nt had no impact on the interaction between nucleolin and AS22nt because the magnitudes of binding energy of nucleolin and aptamer with Dox or without Dox were comparable and they were within their calculated deviation. This understanding of nucleolin, AS1411 aptamer, and Dox interactions could provide us a way to prepare an effective targeted anticancer agent for cancer-suffering patients.
title: Entwicklung eines Vorhersagemodells für die potential-induzierte Degradation in Abhängigkeit von lokalen Umweltbedingungen
Creators: name: Koch, Simon
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2019
Subjects: subject: 620

description: Ziel dieser Arbeit sind fundierte Abschätzungen über die Ausfallzeitpunkte von PID-anfälligen Solarmodulen in Abhängigkeit von unterschiedlichen Standorten und den dort vorherrschenden klimatischen Bedingungen. Zu diesem Zweck wurde ein iteratives Vorhersagemodell entwickelt, mit dessen Hilfe anhand von Wetterdaten der Ausfallzeitpunkt eines definierten Solarmodulaufbaus berechnet werden kann. Das Vorhersagemodell basiert auf den Ergebnissen der Untersuchung des PID-Effekts in Abhängigkeit von variierenden Umgebungsbedingungen im Labor. Ausgehend von den Ergebnissen wurde iterativ in drei Stufen ein PID-Vorhersagemodell entwickelt. Das Vorhersagemodell erlaubte es, die Ausfallzeit der Proben an verschiedenartigen geographischen Standorten miteinander zu vergleichen. Da die Untersuchungen in dieser Arbeit zum großen Teil auf Ein-Zellen-Minimodulen basieren, wurde abschließend die Übertragbarkeit der Ergebnisse auf handelsüblichen 60-Zellen-Module überprüft.
description: The aim of this work is to provide information about the failure times of PID-susceptible solar modules depending on different locations and the prevailing climatic conditions. For this purpose, an iterative predictive model was developed, which can calculate the failure time of a defined solar module array on the basis of weather data. The predictive model is based on the study of the PID effect as a function of varying ambient conditions in the laboratory. From these results, a PID prediction model was developed iteratively in three stages. The predictive model allows a comparison of the downtimes of the samples at various climatic locations. Since the investigations in this work are largely based on one-cell minimum modules, the transferability of the results to commercial 60-cell modules was finally verified.
Application of T4,4,4-graphyne for anode of Na-ion battery: first principle theoretical study
Creators: name: Majidi, Roya
name: Ayesh, Ahmad I.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Hematology

description: The sodium (Na) storage behaviour of T4,4,4-graphyne of two-dimensional porous carbon sheet is explored using the density functional theory (DFT). The energy of adsorption and barrier, storage capacity, and open-circuit voltage are calculated. The calculations predict that Na atom is extraordinary mobile on T4,4,4-graphyne monolayer as a result of the relatively slight energy barrier. The Na storage capacity is as high as Na8C9, which exceeds the values reported for graphite and some other two-dimensional carbon-based materials. The high Na mobility and theoretical capacity make T4,4,4-graphyne monolayer suitable for implementation in rechargeable ion batteries. The electronic properties are also studied to ensure that T4,4,4-graphyne is suitable for Na-ion batteries as an anode material, and they revealed that semiconductor–metal transition is induced by Na adsorption. The favourable electronic conduction is another demand for promising Na-ion batteries. These results predict that the application of T4,4,4-graphyne sheet will increase efficiency of the Na-ion batteries.
Marasmiellus stypinoides Petch, Trans. Br.
Creators: name: Karunarathna, Samantha C.
name: Priyashantha, K Hasith
name: Tibpromma, Saowaluck
name: Galappaththi, Mahesh C. A.
name: Premarathne, Bhagya M.
name: Wijayawardene, Nalin N.
name: Wimalasena, Madhara K.
name: Jayalal, Udeni
name: Wickramanayake, Kawmini D.
name: Dangalla, Hasanka
name: Jayathunga, Hashini
name: Brahmanage, Rashika S.
name: Weerakoon, Gothamie
name: Ariyawansa, Kahandawa G. S. U.
name: Yapa, Neelamanie
name: Nanayakkara, Chandrika M.
name: Ediriweera, Surani
name: Fan, Xin-Lei
name: Kirk, Paul M.
name: Zhang, Gui-Qing
name: Ediriweera, Aseni
name: Bhat, Jayarama
name: Dawoud, Turki M.
name: Kumara, Wasantha
name: Deng, Chun Ying
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Agaricales
Omphalotaceae
Marasmiellus
Marasmiellus stypinoides

description: M.  stypinoides Petch, Trans. Br. mycol. Soc. 31 (1, 2): 41 (1948)/IF: 287962
 Current Name: Marasmiellus stypinoides (Petch) Pegler, Kew Bull., Addit. Ser. 12: 116 (1986) (New Classification: Omphalotaceae, Agaricales, Agaricomycetes)
Typification Details: Holotype K (M), Petch 4114, On dead bark, Sri Lanka
Reference: Petch (1947)
description: Published as part of Karunarathna, Samantha C., Priyashantha, K Hasith, Tibpromma, Saowaluck, Galappaththi, Mahesh C. A., Premarathne, Bhagya M., Wijayawardene, Nalin N., Wimalasena, Madhara K., Jayalal, Udeni, Wickramanayake, Kawmini D., Dangalla, Hasanka, Jayathunga, Hashini, Brahmanage, Rashika S., Weerakoon, Gothamie, Ariyawansa, Kahandawa G. S. U., Yapa, Neelamanie, Nanayakkara, Chandrika M., Ediriweera, Surani, Fan, Xin-Lei, Kirk, Paul M., Zhang, Gui-Qing, Ediriweera, Aseni, Bhat, Jayarama, Dawoud, Turki M., Kumara, Wasantha & Deng, Chun Ying, 2023, Checklist, typification details, and nomenclature status of Basidiomycota, originally described from Sri Lanka, pp. 1-86 in Phytotaxa 621 (1) on page 36, DOI: 10.11646/phytotaxa.621.1.1, http://zenodo.org/record/10065102
Errors in quantum tomography: diagnosing systematic versus statistical errors
Creators: name: Langford, Nathan K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A prime goal of quantum tomography is to provide quantitatively rigorous characterisation of quantum systems, be they states, processes or measurements, particularly for the purposes of trouble-shooting and benchmarking experiments in quantum information science. A range of techniques exist to enable the calculation of errors, such as Monte-Carlo simulations, but their quantitative value is arguably fundamentally flawed without an equally rigorous way of authenticating the quality of a reconstruction to ensure it provides a reasonable representation of the data, given the known noise sources. A key motivation for developing such a tool is to enable experimentalists to rigorously diagnose the presence of technical noise in their tomographic data. In this work, I explore the performance of the chi-squared goodness-of-fit test statistic as a measure of reconstruction quality. I show that its behaviour deviates noticeably from expectations for states lying near the boundaries of physical state space, severely undermining its usefulness as a quantitative tool precisely in the region which is of most interest in quantum information processing tasks. I suggest a simple, heuristic approach to compensate for these effects and present numerical simulations showing that this approach provides substantially improved performance.
description: 16 pages, 9 figures
Novel Subcarrier-pair based Opportunistic DF Protocol for Cooperative Downlink OFDMA
Creators: name: Wang, Tao
name: Fang, Yong
name: Vandendorpe, Luc
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: A novel subcarrier-pair based opportunistic DF protocol is proposed for cooperative downlink OFDMA transmission aided by a decode-and-forward (DF) relay. Specifically, user message bits are transmitted in two consecutive equal-duration time slots. A subcarrier in the first slot can be paired with a subcarrier in the second slot for the DF relay-aided transmission to a user. In particular, the source and the relay can transmit simultaneously to implement beamforming at the subcarrier in the second slot for the relay-aided transmission. Each unpaired subcarrier in either the first or second slot is used by the source for direct transmission to a user without the relay's assistance. The sum rate maximized resource allocation (RA) problem is addressed for this protocol under a total power constraint. It is shown that the novel protocol leads to a maximum sum rate greater than or equal to that for a benchmark one, which does not allow the source to implement beamforming at the subcarrier in the second slot for the relay-aided transmission. Then, a polynomial-complexity RA algorithm is developed to find an (at least approximately) optimum resource allocation (i.e., source/relay power, subcarrier pairing and assignment to users) for either the proposed or benchmark protocol. Numerical experiments illustrate that the novel protocol can lead to a much greater sum rate than the benchmark one.
description: 6 pages, accepted by 2013 IEEE Wireless Communications and Networking Conference
On the gauge of the natural lineshape
Creators: name: Stokes, Adam
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use a general formulation of nonrelativistic quantum electrodynamics in which the gauge freedom is carried by the arbitrary transverse component of the the Green's function for the divergence operator to calculate the natural lineshape of spontaneous emission, thus discerning the full dependence of the result on the choice of gauge. We also use a representation of the Hamiltonian in which the virtual field associated with the atomic ground state is explicitly absent. We consider two processes by which the atom is excited; the first is resonant absorption of incident radiation with a sharp line. This treatment is then adapted to derive a resonance fluorescence rate associated with the Lamb line in atomic hydrogen. Second we consider the atom's excitation due to irradiation with a laser pulse treated semi-classically. An experiment could be used to reveal which of the calculated lineshape distributions is closest to the measured one. This would provide an answer to a question of fundamental importance; how does one best describe atom-radiation interactions with the canonical formalism?
description: 17 pages, 2 figures, 3 tables
Structural characterization of the interfacial self-assembly of chitosan with oppositely charged surfactant
Creators: name: Chachanidze, Revaz
name: Xie, Kaili
name: Massaad, Hanna
name: Roux, Denis
name: Leonetti, Marc
name: de Loubens, Clément
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Controlling the assembly of polyelectrolytes and surfactant at liquid-liquid interfaces offers new ways to fabricate soft materials with specific physical properties. However, little is known of the relationships between the kinetics of interfacial assembly, structural and rheological properties of such interfaces. We studied the kinetics at water-oil interface of the assembly of a positively charged biopolymer, chitosan, with an anionic fatty acid using a multi-scale approach. The growth kinetics of the membrane was followed by interfacial rheometry and space- and time- resolved dynamic light scattering. This set of techniques revealed that the interfacial complexation was a multi-step process. At short time-scale, the interface was fluid and made of heterogeneous patches. At a 'gelation' time, the surface elastic modulus and the correlation between speckles increased sharply meaning that the patches percolated. Confocal and electron microscopy confirmed this picture, and revealed that the basic brick of the membrane was sub-micrometric aggregates of chitosan / fatty acid.