cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of Efficacy and safety of human umbilical cord-derived mesenchymal stem cells (hUC-MSC PLEB001) for the treatment of grade II–IV steroid-refractory acute graft-versus-host disease: a study protocol for a multicenter, randomized, double-blind, placebo-controlled, phase II trial
Creators: name: Yang, Donglin
name: Hou, Xiaoqiang
name: Qian, Kun
name: Li, Yuhang
name: Hu, Liangding
name: Li, Liang
name: Han, Mingzhe
name: Yao, Chen
name: Liu, Daihong
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Interventional Trials (SPIRIT) 2013 checklist.
Xenispa sulcicollis Sekerka 2014, comb. nov.
Creators: name: Sekerka, Lukáš
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Xenispa
Xenispa sulcicollis

description: Xenispa sulcicollis (Champion, 1920) comb. nov.
 Homalispa sulcicollis Champion, 1920: 222 (type locality: ‘ Costa Rica, Alajuela and Juan Viñas near Rio Reventazon’; ST! in BMNH!).
 Remarks. CHAMPION (1920) placed this species in Homalispa particularly because of the serrate lateroapical margins of the elytra and the metallic colour. However, the syntypes in BMNH do not have the mouthparts projecting forwards. The species seems to be most similar to X. costaricensis and X. exigua, and quite likely one of them represents its synonym. However, this require further comparison of type specimens.
 Distribution. Costa Rica: Alajuela and Limón (CHAMPION 1920).
description: Published as part of Sekerka, Lukáš, 2014, Review of Imatidiini genera (Coleoptera: Chrysomelidae: Cassidinae), pp. 257-314 in Acta Entomologica Musei Nationalis Pragae 54 (1) on pages 307-308, DOI: 10.5281/zenodo.5301732
New Approach to Quantum Field Theory for Arbitrary Observers in Electromagnetic Backgrounds
Creators: name: Dolby, Carl E.
name: Gull, Stephen F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A reformulation of fermionic QFT in electromagnetic backgrounds is presented which uses methods analogous to those of conventional multiparticle quantum mechanics. Emphasis is placed on the (Schrödinger picture) states of the system, described in terms of Slater determinants of Dirac states, and not on the field operator $\hatψ(x)$ (which is superfluous in this approach). The vacuum state `at time $τ$' is defined as the Slater determinant of a basis for the span of the negative spectrum of the `first quantized' Hamiltonian $\hat{H}(τ)$, thus providing a concrete realisation of the Dirac Sea. The general S-matrix element of the theory is derived in terms of time-dependent Bogoliubov coefficients, demonstrating that the S-matrix follows directly from the definition of inner product between Slater determinants. The process of `Hermitian extension', inherited directly from conventional multiparticle quantum mechanics, allows second quantized operators to be defined without appealing to a complete set of orthonormal modes, and provides an extremely straightforward derivation of the general expectation value of the theory. The concept of `radar time', advocated by Bondi in his work on k-calculus, is used to generalise the particle interpretation to an arbitrarily moving observer. A definition of particle results, which depends {\it only} on the observer's motion and the background present, not on any choice of coordinates or gauge, or of the particle detector. We relate this approach to conventional methods by comparing and contrasting various derivations. Our particle definition can be viewed as a generalisation to arbitrary observers of Gibbons' approach.
description: 36 pages, 3 figures
Using Altmetric Explorer to Develop Dissemination Plans: A Guide for Researchers & Institutions
Creators: name: Altmetric Engineering
Publisher: name: Altmetric
Year: 2019
Subjects: Uncategorized

description: In order for relevant audiences to find, discuss, and further share your work, you must approach dissemination strategically.Leveraging the Altmetric Explorer is one way to inform your dissemination plan.You can use the Explorer to learn:1) where engagement with research in your field is happening online,2) who is talking about research, and3) which journals are publishing research that receives the most online attention.
Fruchtende Epheubestände um Regensburg und in der Oberpfalz
Creators: name: Familler, .
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Laubmoose des Amtsgerichtsbezirkes Mitterfels, zusammengestellt von Dr. A. Meindl am 11. Juni 1884
Creators: name: Familler, .
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Intermediate shock substructures within a slow-mode shock occurring in partially ionised plasma
Creators: name: Snow, Ben
name: Hillier, Andrew
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Slow-mode shocks are important in understanding fast magnetic reconnection, jet formation and heating in the solar atmosphere, and other astrophysical systems. The atmospheric conditions in the solar chromosphere allow both ionised and neutral particles to exist and interact. Under such conditions, fine substructures exist within slow-mode shocks due to the decoupling and recoupling of the plasma and neutral species. We study numerically the fine substructure within slow-mode shocks in a partially ionised plasma, in particular, analysing the formation of an intermediate transition within the slow-mode shock. High-resolution 1D numerical simulations are performed using the (P\underline{I}P) code using a two-fluid approach. We discover that long-lived intermediate (Alfven) shocks can form within the slow-mode shock, where there is a shock transition from above to below the Alfven speed and a reversal of the magnetic field across the shock front. The collisional coupling provides frictional heating to the neutral fluid, resulting in a Sedov-Taylor-like expansion with overshoots in the neutral velocity and neutral density. The increase in density results in a decrease of the Alfven speed and with this the plasma inflow is accelerated to above the Alfven speed within the finite width of the shock leading to the intermediate transition. This process occurs for a wide range of physical parameters and an intermediate shock is present for all investigated values of plasma-$β$, neutral fraction, and magnetic angle. As time advances the magnitude of the magnetic field reversal decreases since the neutral pressure cannot balance the Lorentz force. The intermediate shock is long-lived enough to be considered a physical structure, independent of the initial conditions.
description: Accepted for A&A
Spontaneous phase oscillation induced by inertia and time delay
Creators: name: Hong, H.
name: Jeon, Gun Sang
name: Choi, M. Y.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a system of coupled oscillators with finite inertia and time-delayed interaction, and investigate the interplay between inertia and delay both analytically and numerically. The phase velocity of the system is examined; revealed in numerical simulations is emergence of spontaneous phase oscillation without external driving, which turns out to be in good agreement with analytical results derived in the strong-coupling limit. Such self-oscillation is found to suppress synchronization and its frequency is observed to decrease with inertia and delay. We obtain the phase diagram, which displays oscillatory and stationary phases in the appropriate regions of the parameters.
description: 5 pages, 6 figures, to pe published in PRE
Eine pleistocäne Conchylienfauna bei Mintrachung (Regensburg)
Creators: name: Clessin, S.
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Xenispa testaceicornis Sekerka 2014, comb. nov.
Creators: name: Sekerka, Lukáš
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Xenispa
Xenispa testaceicornis

description: Xenispa testaceicornis (Pic, 1926) comb. nov.
 Demothispa testaceicornis Pic, 1926a: 14 (type locality: ‘Pérou’; HT! in MNHN!).
 Distribution. Peru: Cuzco (DESCARPENTRIES & VILLIERS 1959).
description: Published as part of Sekerka, Lukáš, 2014, Review of Imatidiini genera (Coleoptera: Chrysomelidae: Cassidinae), pp. 257-314 in Acta Entomologica Musei Nationalis Pragae 54 (1) on page 308, DOI: 10.5281/zenodo.5301732
Dissemination & Altmetric Explorer: A Guide for Publishers
Creators: name: Altmetric Engineering
Publisher: name: Altmetric
Year: 2019
Subjects: Uncategorized

description: In order for relevant audiences to find, discuss, and further share published materials, dissemination must be approached strategically.Leveraging the Altmetric Explorer is one way to inform your dissemination plan.You can use the Explorer to learn:1) where engagement with research in different fields is happening online,2) who is talking about research, and3) how the online attention your titles receive compares to the performance of other journals or books.
Sound of Fermi arcs
Creators: name: Adivehvand, Fatemeh
name: Faraei, Zahra
name: Farajollahpour, Tohid
name: Jafari, S. A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using Green's function of semi-infinite Weyl semimetals we find that the collective charge excitations of Fermi arcs in undoped Weyl semi-metals are linearly dispersing gapless plasmon modes. The gaplessness comes from proper consideration of the deep penetration of surface states at the end of Fermi arcs into the interior of Weyl semimetal. The linear dispersion -- rather than square root dispersion of {\it pure 2D} electron systems with extended Fermi surface -- arises from the strong anisotropy introduced by the Fermi arc itself, due to which the continuum of surface particle-hole excitations in this system will have strong resemblence to the one-dimensional electron systems. This places the Fermi arc electron liquid in between the 1D and 2D electron liquids. Contamination with the particle-hole excitations of the bulk gives rise to the damping of the Fermi arc sounds.
Alluviale Conchylien, welche bei der Ausbaggerung des Umschlaghafen bei Regensburg gefunden wurden
Creators: name: Clessin, S.
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Infinite series of magnetization plateaus in the frustrated dimer-plaquette chain
Creators: name: Schulenburg, J.
name: Richter, J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The dimer-plaquette chain undergoes a first order transition driven by frustration to an orthogonal dimer ground state. We analyze the magnetization curve in this orthogonal dimer regime. Besides of the recently found magnetization plateaus at m=1/4 and the m=1/2 we find an infinite sequence of plateaus between m=1/4 and m=1/2. These additional plateaus belong to magnetizations m(n)=n/(2n+2), where n is a positive integer number.
description: 3 pages, 2 figures, similar version was submitted as comment to Phys.Rev.B
Einläufe zur Bibliothek 1908/09
Creators: name: N., N.
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Design of Six Band Microstrip Antenna
Creators: name: Kumar, Kuldip
Publisher: name: figshare
Year: 2019
Subjects: subject: 100501 Antennas and Propagation
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, design of multi-band microstrip antenna with a U-shaped slot and two linear slots with a copper post at the center has been presented. It is observed that frequency bands and gain of the antenna with copper post are increased as compared to the corresponding antenna without copper post. The proposed antenna has been designed for use in wireless devices in the frequency range between 5 GHz to 9 GHz.
Conductance from Non-perturbative Methods II
Creators: name: Castro-Alvaredo, Olalla A.
name: Fring, Andreas
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This talk provides a natural continuation of the talk presented by Andreas Fring in this conference. Part I was focused on explaining how the DC conductance for a free Fermion theory in the presence of different kinds of defects can be computed by evaluating the Kubo formula. In this talk I will focus on an alternative method for the computation of the same quantity, that is the evaluation of Landauer formula. Once again, the integrability of the theories under consideration will be exploited, since a thermodynamic Bethe ansatz analysis provides all the input needed in that case, apart from the corresponding reflection and transmition amplitudes of the defect. The basic conclusion of our analysis will be the perfect agreement between the two different theoretical descriptions mentioned.
description: 17 pages of latex, 5 figures. Talk held at the Workshop on Integrable Theories, Solitons and Duality IFT-UNESP, Sao Paulo, July 2002
Xenispa tibialis Sekerka 2014, comb. nov.
Creators: name: Sekerka, Lukáš
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Xenispa
Xenispa tibialis

description: Xenispa tibialis (Baly, 1858) comb. nov.
 Demotispa tibialis Baly, 1858: 66 (type locality: ‘Amazons’; HT in BMNH not found).
 Remarks. The transfer is made upon the primary description, as I was unable to ¿nd the holotype, which should be located in the BMNH. The species was listed only in catalogues without any new specimens having been reported, and therefore, it is questionable whether it was collected in Brazil or Peru.
 Distribution. Brazil or Peru (BALY 1858).
description: Published as part of Sekerka, Lukáš, 2014, Review of Imatidiini genera (Coleoptera: Chrysomelidae: Cassidinae), pp. 257-314 in Acta Entomologica Musei Nationalis Pragae 54 (1) on page 308, DOI: 10.5281/zenodo.5301732
Rhythm, intonation and focus in Mandarin : syllabic volume as an acoustic correlate of metrical structure
Creators: name: Xie, Guanghua
Publisher: name: Canberra, ACT : The Australian National University
Year: 1990
Subjects: subject: Mandarin dialects Intonation
subject: Mandarin dialects Rhythm

description: In the last decade the theory of metrical phonology has been an important development in linguistic theory. It began by concentrating on stress and rhythmical phenomena in English. The main idea of metrical phonology is that phonological strings are not merely linear sequences but are hierarchically structured. Stress patterns of rhythm reflect, to some extent at least, relations of prominence between the constituents of sentences. The relative prominence of each constituent in a metrical tree is indicated by nodes at different levels. Each node is labeled either s or w where s means 'stronger than' and w means 'weaker than' its sister node (Hogg and McCully 1987: 62-75). However, how can the relationship between strong and weak constituents be interpreted physically? What kind of value can be identified as an acoustic correlate of metrical structure? Up to now there has been little work addressing these problems. In this thesis I concentrate on· these questions in relation to rhythm, intonation, and focus in the Mandarin sentence JINTIAN TA BAN JIA (She/he is moving house today). The aim of my thesis is to develop the hierarchical rhythm approach and suggest that syllabic volume (a three dimensional acoustic value) can be identified as the acoustic correlate of metrical structure.
Mitglieder-Verzeichniss 31. Dezember 1909
Creators: name: N., N.
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Hydrogen supersaturated layers in H/D plasma-loaded tungsten: A global model based on thermodynamics, kinetics and density functional theory data
Creators: name: Hodille, E.
name: Fernandez, N
name: Piazza, Z.
name: Ajmalghan, M.
name: Ferro, Y.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, we combine Density Functional Theory data with a Thermodynamic and a kinetic model to determine the total concentration of hydrogen implanted in the sub-surface of tungsten exposed to a hydrogen flux. The sub-surface hydrogen concentration is calculated given a flux of hydrogen, a temperature of implantation, and the energy of the incoming hydrogen ions as independent variables. This global model is built step by step; an equilibrium between atomic hydrogen within bulk tungsten and a molecular hydrogen gas phase is first considered, and the calculated solubility is compared with experimental results. Subsequently, a kinetic model is used to determine the chemical potential for hydrogen in the sub-surface of tungsten. Combining both these models, two regimes are established in which hydrogen is preferentially trapped at either interstitial sites or in vacancies. We deduce from our model that the existence of these two regimes is driven by the temperature of the implanted tungsten sample; above a threshold or transition temperature is the interstitial regime, below is the vacancy regime in which super-saturated layers form within tenths of angstrom below the surface. A simple analytical expression is derived for the coexistence of the two regimes depending on the implantation temperature, the incident energy and the flux of the hydrogen ions which we use to plot the corresponding phase diagram.
Precursors, black holes, and a locality bound
Creators: name: Giddings, S. B.
name: Lippert, M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We revisit the problem of precursors in the AdS/CFT correspondence. Identification of the precursors is expected to improve our understanding of the tension between holography and bulk locality and of the resolution of the black hole information paradox. Previous arguments that the precursors are large, undecorated Wilson loops are found to be flawed. We argue that the role of precursors should become evident when one saturates a certain locality bound. The spacetime uncertainty principle is a direct consequence of this bound.
description: 26 pages, 8 figs; reference added, minor clarification in sec. 2; incorrect draft mistakenly used in version 2
IJREISS_1342_85096.pdf
Creators: name: Kumar, Kuldip
Publisher: name: figshare
Year: 2019
Subjects: Education

description: Mental health is a main factor for individuals, families and communities, and is more than simply the absence of a mental disorder. In this paper, there is a comparison between the mental health of male and female professional course students. We use null hypothesis method for observing the mental health of male and female professional course students of HNB Garhwal University, Srinagar, and Uttarakhand. We take a null hypothesis that there is no significant difference in Mental Health according to the gender of professional course students. This research is conducted on the basis of questionnaire tool “Mental Health Questionnaire as Mental Health Battery” by Arun Kumar Singh and Alpana Sen Gupta. After analyzing the collected data, our findings are there is an effect of the gender of students in emotional stability; Overall Adjustment and Security-Insecurity but we did not find any significance difference in Autonomy, Self-Concept, Intelligence and Overall Mental Health. These are the factors Mental Health.
Rechnungsabschluss für das Jahr 1909
Creators: name: N., N.
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Theory for high spin systems with orbital degeneracy
Creators: name: Shen, Shun-Qing
name: Xie, X. C.
name: Zhang, F. C.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: High-spin systems with orbital degeneracy are studied in the large spin limit. In the absence of Hund's coupling, the classical spin model is mapped onto disconnected orbital systems with spins up and down, respectively. The ground state of the isotropic model is an orbital valence bond state where each bond is an orbital singlet with parallel spins, and neighbouring bonds interact antiferromagnetically. The possible relevance to the transition metal oxides are discussed.
description: 4 page, three figures, to appear in Phys. Rev. Lett
A feature-based analysis identifies COL1A2 as a regulator in pancreatic cancer
Creators: name: Wu, Jie
name: Liu, Jing
name: Wei, XiaoQing
name: Yu, Qi
name: Niu, XiangHuan
name: Tang, ShuHong
name: Song, Lei
Publisher: name: Taylor & Francis
Year: 2019
Subjects: Biophysics
Biochemistry
Medicine
Cell Biology
Molecular Biology
Pharmacology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Cancer
Virology

description: This study aimed to identify genetic biomarkers in pancreatic cancer (PC) and explore its function in PC via a feature-base analysis of bioinformatics. OMIM and DisGeNET databases discovered 209 PC connected genes and then 516 connected genes were identified. We selected 29 genes according to optimal features and chose COL1A2, which had the highest expression, for the following experiment. The expression of COL1A2 was determined by qRT-PCR; cell proliferation was determined by MTT assay; migration and invasion after COL1A2 and miR-25-3p transfection was evaluated by Transwell assay. COL1A2 presented the highest expression in PC tissues, which was validated in functional experiments. MiR-25-3p suppressed the expression of COL1A2 in cell lines and inhibited migration, invasion and proliferation of PC cells. MiR-25-3p could suppress the expression of COL1A2 and inhibit the proliferation, migration and invasion of PC cells which provided a new idea for the detection and treatment of PC.
Rechnungsabschluss für das Jahr 1908
Creators: name: N., N.
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Renormalized mean-field theory of the neutron scattering in cuprate superconductors
Creators: name: Brinckmann, Jan
name: Lee, Patrick A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The magnetic excitation spectrum of the t-t'-J-model is studied in mean-field theory and compared to inelastic neutron-scattering (INS) experiments on YBCO and BSCCO superconductors. Within the slave-particle formulation the dynamical spin response is calculated from a renormalized Fermi liquid with an effective interaction ~J in the magnetic particle--hole channel. We obtain the so-called 41meV resonance at wave vector (pi,pi) as a collective spin-1 excitation in the d-wave superconducting state. It appears sharp (undamped), if the underlying Fermi surface is hole-like with a sufficient next-nearest-neighbor hopping t'<0. The double-layer structure of YBCO or BSCCO is not important for the resonance to form. The resonance energy ω_{res} and spectral weight at optimal doping come out comparable to experiment. The observed qualitative behavior of ω_{res} with hole filling is reproduced in the underdoped as well as overdoped regime. A second, much broader peak becomes visible in the magnetic excitation spectrum if the 2D wave-vector is integrated over. It is caused by excitations across the maximum gap, and in contrast to the resonance its energy is almost independent of doping. At energies above or below ω_{res} the commensurate resonance splits into incommensurate peaks, located off (pi,pi). Below ω_{res} the intensity pattern is of `parallel' type and the dispersion relation of incommensurate peaks has a negative curvature. This is in accordance with recent INS experiments on YBCO.
description: 17pp including 14 figures
Rechnungsabschluss für das Jahr 1907
Creators: name: N., N.
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Optimal random deposition of interacting particles
Creators: name: Baule, Adrian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Irreversible random sequential deposition of interacting particles is widely used to model aggregation phenomena in physical, chemical, and biophysical systems. We show that in one dimension the exact time dependent solution of such processes can be found for arbitrary interaction potentials with finite range. The exact solution allows to rigorously prove characteristic features of the deposition kinetics, which have previously only been accessible by simulations. We show in particular that a unique interaction potential exists that leads to a maximally dense line coverage for a given interaction range. Remarkably, this distribution is singular and can only be expressed as a mathematical limit. The relevance of these results for models of nucleosome packing on DNA is discussed. The results highlight how the generation of an optimally dense packing requires a highly coordinated packing dynamics, which can be effectively tuned by the interaction potential even in the presence of intrinsic randomness.
description: Phys. Rev. Lett. (in print)
Xenispa tricolor Sekerka 2014, comb. nov.
Creators: name: Sekerka, Lukáš
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Xenispa
Xenispa tricolor

description: Xenispa tricolor (Weise, 1905) comb. nov.
 Demothispa tricolor Weise, 1905a: 54 (type locality: ‘ Bolivia: Cochabamba’; ST! in MNHN!).
 Distribution. Bolivia: Cochabamba (WEISE 1905a).
description: Published as part of Sekerka, Lukáš, 2014, Review of Imatidiini genera (Coleoptera: Chrysomelidae: Cassidinae), pp. 257-314 in Acta Entomologica Musei Nationalis Pragae 54 (1) on page 308, DOI: 10.5281/zenodo.5301732
Jahresbericht für das Jahr 1909
Creators: name: N., N.
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Jahresbericht für das Jahr 1908
Creators: name: N., N.
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Melting of Ferromagnetic Order on a Trellis Ladder
Creators: name: Maiti, Debasmita
name: Kumar, Manoranjan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The ground state properties of a frustrated spin-1/2 system is studied on a trellis ladder which is composed of two zigzag ladders interacting through rung interactions. The presence of rung interaction between the zigzag ladders induces a non-magnetic ground state, although, each of zigzag ladders has ferromagnetic order in weak antiferromagnetic leg interaction limit. The rung interaction also generates rung dimers and opens spin gap which increases rapidly with rung interaction strength. The correlation between spins decreases exponentially with the distance between them.
Comparing the Effects of Conventional Exercise and Exergme on SelfEsteem among Elderly People
Creators: name: Sadeghi, Hassan
name: Shakoor, Elham
name: Abdollahi, Abbas
Publisher: name: Zenodo
Year: 2017
Subjects: Exergame
Conventional exercise
self-esteem
older adults
Active Video game

description: Self-esteem is an important aspect of the adaptive processes at all stages of life, but especially in older adults. Older people with low self-esteem may feel powerless and incompetent and lead to physical and cognitive decline and may increase the chances of depression and suicide. Exergame or active video game is the new intervention to improve performance and mental activity of elderly people. Objective: the main purpose of this study to investigate comparing effects of exergame and conventional exercise on self-esteem of older adults
Anomalous fluctuations of two-dimensional Bose-Einstein condensates
Creators: name: Xiong, Hongwei
name: Liu, Shujuan
name: Huang, Guoxiang
Publisher: name: arXiv
Year: 2002
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the particle-number fluctuations due to the collective excitations created in a two-dimensional (2D) and a quasi-2D Bose-Einstein condensates (BECs) at low temperature. We find that the fluctuations display an anomalous behavior, i. e. for the 2D BEC they are proportional to $N^2$, where $N$ is the total number of particles. For the quasi-2D BEC, the particle-number fluctuations are proportional not only to $N^2$ but also to the square root of the trapping frequency in the strongly-confined direction.
description: RevTex format, no figures, hongweixiong@hotmail.com, to appear in Phys. Rev. A
Xenispa uhmanni Sekerka 2014, comb. nov.
Creators: name: Sekerka, Lukáš
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Chrysomelidae
Xenispa
Xenispa uhmanni

description: Xenispa uhmanni (Pic, 1934) comb. nov.
 Demothispa uhmanni Pic, 1934b: 2 (type locality: ‘ Colombie: S. Antonio’; HT in SDEI).
 Distribution. Colombia: Tolima (PIC 1934b).
description: Published as part of Sekerka, Lukáš, 2014, Review of Imatidiini genera (Coleoptera: Chrysomelidae: Cassidinae), pp. 257-314 in Acta Entomologica Musei Nationalis Pragae 54 (1) on page 308, DOI: 10.5281/zenodo.5301732
Criticism of "Necessity of simultaneous co-existence of instantaneous and retarded interactions in classical electrodynamics" by Andrew E. Chubykalo and Stoyan J. Vlaev
Creators: name: Jackson, J. D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The demonstration that the electromagnetic fields derived from the Lienard-Wiechert potentials do not satisfy the Maxwell equations is proved to be false. Errors were made in the computation of the derivatives of retarded quantities. The subsequent inference of the necessity of both instantaneous and retarded electromagnetic interactions cannot be made. Different choices of gauge can lead to a variety of forms for the scalar and vector potentials, always with the same retarded fields. Classical electromagnetic theory is complete as usually expressed. One may choose to work in the Lorenz gauge in which all quantities are retarded.
description: pdf file, 5 pages, submitted to Int. J. Mod. Phys
Holochilus Brandt 1835
Creators: name: PATTON, JAMES L.
name: DA SILVA, MARIA NAZARETH F.
name: MALCOLM, JAY R.
Publisher: name: Zenodo
Year: 2000
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Cricetidae
Holochilus

description: Holochilus Brandt, 1835   Marsh rats
description: Published as part of PATTON, JAMES L., DA SILVA, MARIA NAZARETH F. & MALCOLM, JAY R., 2000, Mammals Of The Rio Juruá And The Evolutionary And Ecological Diversification Of Amazonia, pp. 1-306 in Bulletin of the American Museum of Natural History 2000 (244) on page 90, DOI: 10.1206/0003-0090(2000)244<0001:MOTRJA>2.0.CO;2, http://zenodo.org/record/5347311
Jahresbericht für das Jahr 1907
Creators: name: N., N.
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 12 (1907): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Spin-Orbit Coupling and the Evolution of Transverse Spin
Creators: name: Eismann, Jörg S.
name: Banzer, Peter
name: Neugebauer, Martin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the evolution of transverse spin in tightly focused circularly polarized beams of light, where spin-orbit coupling causes a local rotation of the polarization ellipses upon propagation through the focal volume. The effect can be explained as a relative Gouy-phase shift between the circularly polarized transverse field and the longitudinal field carrying orbital angular momentum. The corresponding rotation of the electric transverse spin density is observed experimentally by utilizing a recently developed reconstruction scheme, which relies on transverse-spin-dependent directional scattering of a nano-probe.
description: 4 pages, 2 figures
Brane Dynamics in the Randall-Sundrum model, Inflation and Graceful Exit
Creators: name: Bhattacharya, Somdatta
name: Choudhury, Debajyoti
name: Jatkar, Dileep P.
name: Sen, Anjan Ananda
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the averaged action of the Randall-Sundrum model with a time dependent metric ansatz. It can be reformulated in terms of a Brans-Dicke action with time dependent Newton's constant. We show that the physics of early universe, particularly inflation, is governed by the Brans-Dicke theory. The Brans-Dicke scalar, however, quickly settles to its equilibrium value and decouples from the post-inflationary cosmology. The deceleration parameter is negative to start with but changes sign before the Brans-Dicke scalar settles to its equilibrium value. Consequently, the brane metric smoothly exits inflation. We have also studied the slow-roll inflation in our model and investigated the spectra of the density perturbation generated by the radion field and find them consistent with the current observations.
description: Revised version, Accepted in Class. Quant. Gravity
In vitro and in vivo antitumor effect of gefitinib nanoparticles on human lung cancer
Creators: name: Ni, Xiao Ling
name: Chen, Long Xia
name: Zhang, Heng
name: Yang, Bo
name: Xu, Shan
name: Wu, Min
name: Liu, Jing
name: Yang, Ling Lin
name: Chen, Yue
name: Fu, Shao Zhi
name: Wu, Jing Bo
Publisher: name: Taylor & Francis
Year: 2017
Subjects: Space Science
Medicine
Cell Biology
Pharmacology
Biotechnology
Biological Sciences not elsewhere classified
Cancer
Computational Biology

description: Gefitinib (GEF) is the first epidermal growth factor receptor (EGFR)-targeting agent launched as an anticancer drug. It is an accepted opinion that modifying GEF strong hydrophobicity and poor bioavailability would not only enhance its antitumor effects, but also reduce its side effects. In this study, GEF-loadedpoly(ε-caprolactone)-poly(ethyleneglycol)-poly(ε-caprolactone) (PCEC) -bearing nanoparticles (GEF-NPs) were prepared by a solid dispersion method and characterized. The particle sizes increased with the increase in GEF/PCEC mass ratio in feed. GEF-NPs (10%) were mono-dispersed, smaller than 24 nm, zeta potential was approximately −18 mV, percentage encapsulation and loading, were more than 9% and 92%, respectively, and drug was slowly released but without a biphasic pattern. Microscopy studies of the optimized formulation confirmed that the prepared nanoparticles are spherical in nature. Cytotoxicity results indicated that cell growth inhibition induced by free GEF and GEF-NPs were dose and time dependent. Compared with free GEF, GEF-NPs enhanced antitumor effects, reduced side effects and significantly prolonged survival time in vivo. CD31, ki-67 and EGFR expression were significantly lower in the GEF-NPs group compared with other groups (p< .05). These findings demonstrated that GEF-NPs have the potential to attain superior outcomes and to overcome complications such as organs toxicity, therapeutic resistance and disease relapse.
Quantum integrable system with two color components in two dimensions
Creators: name: Yan, Mu-Lin
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Davey-Stewartson 1(DS1) system[9] is an integrable model in two dimensions. A quantum DS1 system with 2 colour-components in two dimensions has been formulated. This two-dimensional problem has been reduced to two one-dimensional many-body problems with 2 colour-components. The solutions of the two-dimensional problem under consideration has been constructed from the resulting problems in one dimensions. For latters with the $δ$-function interactions and being solved by the Bethe ansatz, we introduce symmetrical and antisymmetrical Young operators of the permutation group and obtain the exact solutions for the quantum DS1 system. The application of the solusions is discussed.
description: 14 pages, LaTeX file
Disorder Driven Critical Behavior of Periodic Elastic Media in a Crystal Potential
Creators: name: Noh, Jae Dong
name: Rieger, Heiko
Publisher: name: arXiv
Year: 2001
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study a lattice model of a three-dimensional periodic elastic medium at zero temperature with exact combinatorial optimization methods. A competition between pinning of the elastic medium, representing magnetic flux lines in the mixed phase of a superconductor or charge density waves in a crystal, by randomly distributed impurities and a periodic lattice potential gives rise to a continuous phase transition from a flat phase to a rough phase. We determine the critical exponents of this roughening transition via finite size scaling obtaining $ν\approx1.3$, $β\approx0.05$, $γ/ν\approx2.9$ and find that they are universal with respect to the periodicity of the lattice potential. The small order parameter exponent is reminiscent of the random field Ising critical behavior in 3$d$.
description: 4 pages, 3 eps-figures included
Resonant algebras in Chern-Simons model of topological insulators
Creators: name: Durka, Remigiusz
name: Kowalski-Glikman, Jerzy
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: This paper explores the possibility of using Maxwell algebra and its generalizations called resonant algebras for the unified description of topological insulators. We offer the natural action construction, which includes the relativistic Wen-Zee and other terms, with adjustable coupling constants. By gauging all available resonant algebras formed by Lorentz, translational and Maxwell generators $\{J_a, P_a, Z_a\}$ we present six Chern-Simons Lagrangians with various terms content accounting for different aspects of the topological insulators. Additionally, we provide complementary actions for another invariant metric form, which might turn out useful in some generalized (2+1) gravity models.
description: 10 pages
Inhalts-Verzeichniss
Creators: name: N., N.
Publisher: name: Acta Albertina Ratisbonensia
Year: 2017

description: ...
description: Acta Albertina Ratisbonensia, Bd. 8 (1900): Berichte des Naturwissenschaftlichen (früher zoologisch - mineralogischen) Vereines zu Regensburg
Revisiting the pulsational characteristics of the exoplanet host star $β$ Pictoris
Creators: name: Zwintz, K.
name: Reese, D. R.
name: Neiner, C.
name: Pigulski, A.
name: Kuschnig, R.
name: Muellner, M.
name: Zieba, S.
name: Abe, L.
name: Guillot, T.
name: Handler, G.
name: Kenworthy, M.
name: Stuik, R.
name: Moffat, A. F. J.
name: Popowicz, A.
name: Rucinski, S. M.
name: Wade, G. A.
name: Weiss, W. W.
name: Bailey, J. I.
name: Crawford, S.
name: Ireland, M.
name: Kuhn, R.
name: Lomberg, B.
name: Mamajek, E. E.
name: Mellon, S. N.
name: Talens, G. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Exoplanet properties crucially depend on their host stars' parameters. In case the exoplanet host star shows pulsations, asteroseismology can be used for an improved description of the stellar parameters. We aim to revisit the pulsational properties of beta Pic and identify its pulsation modes from normalised amplitudes in five different passbands. We also investigate the potential presence of a magnetic field. We conduct a frequency analysis using three seasons of BRITE-Constellation observations in the BRITE blue and red filters, the ~620-day long bRing light curve and the nearly 8-year long SMEI photometric time series. We calculate normalised amplitudes using all passbands including previously published values obtained from ASTEP observations. We investigate the magnetic properties of beta Pic using spectropolarimetric observations conducted with the HARPSpol instrument. Using 2D rotating models, we fit the normalised amplitudes and frequencies through Monte Carlo Markov Chains. We identify 15 pulsation frequencies in the range from 34 to 55c/d, where two display clear amplitude variability. We use the normalised amplitudes in up to five passbands to identify the modes as three l = 1, six l = 2 and six l = 3 modes. beta Pic is shown to be non-magnetic with an upper limit of the possible undetected dipolar field of 300G. Multiple fits to the frequencies and normalised amplitudes are obtained including one with a near equator-on inclination for beta Pic, which corresponds to our expectations based on the orbital inclination of beta Pic b and the orientation of the circumstellar disk. This solution leads to a rotation rate of 27% of the Keplerian break-up velocity, a radius of 1.497+-0.025Rsun, and a mass of 1.797+-0.035Msun. The ~2% errors in radius and mass do not account for uncertainties in the models and a potentially erroneous mode-identification.
description: 26 pages, 19 figures, accepted in Astronomy & Astrophysics
Self-reference in Japanese and Thai : a comparative study
Creators: name: Chirasombutti, Voravudhi
Publisher: name: The Australian National University
Year: 1995
Subjects: subject: Thai language Pronoun
subject: Thai language Noun
subject: Japanese language Pronoun
subject: Japanese language Noun

description: This study sets out to investigate the self-reference systems in spoken Japanese and Thai with a view to comparing and contrasting the two. The study is primarily concerned with self-reference in the metropolitan varieties of spoken Japanese (Tokyo) and Thai (Bangkok). After a review of previous treatments of self-reference terms and pronouns in Japanese and Thai, four types of self-reference terms - pronouns, status terms, personal names and other nouns - are analysed to show their meanings and ranges of usage. The analysis is based on data from a combination of sources: (a) an extensive self-report questionnaire survey organised especially to highlight three types of speaker contrast: Japanese/Thai, student/employee and male/female speakers; (b) examples of Japanese/Thai natural conversation, for example, mass media extracts; (c) personal observations and informal interviews with representative native speakers. In most cases (b) and (c) confirmed the data collected in (a), suggesting the general validity of questionnaire results of this type. The self-reference systems in Japanese and Thai are discussed from a comparative perspective. The comparison shows differences and similarities in formal categories and in patterns of usage. In general, relationships of intimacy and power in the Japanese and Thai self-reference case are more problematic and complex than was proposed in the two-dimensional model by Brown and Gilman ( 1960), involving parametric variation referred to there as "power" and "solidarity". While these high.-level variables can furnish a first approximation to the Japanese and Thai cases and provide relevant insights, more specific factors such as gender, age, kinship relationship, occupation, formality, overhearer presence and emotional switch were found to be important in arriving at a fuller picture of how self-reference operates in the two languages. In particular, age and gender were found to be especially important factors in self-reference term selection but they do not operate exactly the same in the two languages. The notion of pronoun scope has been used in this study to account for how certain pronominal forms are selected and also to facilitate intra-language and cross-language comparisons. Substantial diachronic change has marked both the Japanese and Thai systems. Overt prescriptive training was found to have some effect on speaker's choices - more so in Japanese than in Thai. These and other sources of variation to the general picture outlined in this study are considered.
Approximating Propositional Calculi by Finite-valued Logics
Creators: name: Baaz, Matthias
name: Zach, Richard
Publisher: name: arXiv
Year: 2002
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03B50 (Primary), 03B45, 03B60 (Secondary)

description: Bernays introduced a method for proving underivability results in propositional calculi by truth tables. In general, this motivates an investigations of how to find, given a propositional logic, a finite-valued logic which has as few tautologies as possible, but which has all the valid formulas of the given logic as tautologies. It is investigated how far this method can be carried using (1) one or (2) an infinite sequence of finite-valued logics. It is shown that the best candidate matrices for (1) can be computed from a calculus, and how sequences for (2) can be found for certain classes of logics (including, in particular, logics characterized by Kripke semantics).
description: 20 pages