cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Holographic JT gravity with quartic couplings
Creators: name: Rathi, Hemant
name: Roychowdhury, Dibakar
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct the most general theory of 2D Einstein-dilaton gravity coupled with $U(1)$ gauge fields that contains all the 2-derivative and the 4-derivative interactions allowed by the diffeomorphism invariance. We renormalise the 2D action and obtain the vacuum solution as well as the black hole solution. The vacuum solution in the UV is dominated by Lifshitz$_2$ with dynamical exponent ($z=\frac{7}{3}$) while on the other hand, the spacetime curvature diverges as we move towards the deep IR limit. We calculate the holographic stress tensor and the central charge for the boundary theory. Our analysis shows that the central charge goes as the inverse power of the coupling associated to 4-derivative interactions. We also compute the Wald entropy for 2D black holes and interpret its near horizon divergence in terms of the density of states. We compare the Wald entropy with the Cardy formula and obtain the eigen value of Virasoro operator ($L_0$) for our model. Finally, we explore the near horizon structure of 2D black holes and calculate the central charge corresponding to the CFT near horizon. We further show that the near horizon CFT may be recast as a 2D Liouville theory with higher derivative corrections. We study the Weyl invariance of this generalised Liouville theory and identify the Weyl anomaly associated to it. We also comment on the classical vacuum structure of the theory.
description: Added refs, Version Accepted in JHEP
Effects of rotation on the evolution of primordial stars
Creators: name: Ekström, S.
name: Meynet, G.
name: Chiappini, C.
name: Hirschi, R.
name: Maeder, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) Rotation has been shown to play a determinant role at very low metallicity, bringing heavy mass loss where almost none was expected. Is this still true when the metallicity strictly equals zero? The aim of our study is to get an answer to this question, and to determine how rotation changes the evolution and the chemical signature of the primordial stars. We have calculated 14 differentially-rotating and non-rotating stellar models at zero metallicity, with masses between 9 and 200 Msol. The evolution has been followed up to the pre-supernova stage. We find that Z=0 models rotate with an internal profile Omega(r) close to local angular momentum conservation, because of a very weak core-envelope coupling. Rotational mixing drives a H-shell boost due to a sudden onset of CNO cycle in the shell. This boost leads to a high 14N production. Generally, the rotating models produce much more metals than their non-rotating counterparts. The mass loss is very low, even for the models that reach the critical velocity during the main sequence. Due to the low mass loss and the weak coupling, the core retains a high angular momentum at the end of the evolution. The high rotation rate at death probably leads to a much stronger explosion than previously expected, changing the fate of the models. The inclusion of our yields in a chemical evolution model of the Galactic halo predicts log values of N/O, C/O and 12C/13C ratios of -2.2, -0.95 and 50 respectively at log O/H +12 = 4.2.
description: 14 pages, 9 figures, accepted for publication in A&A (English not corrected)
Dead zones and phase reduction of coupled oscillators
Creators: name: Ashwin, Peter
name: Bick, Christian
name: Poignard, Camille
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: A dead zone in the interaction between two dynamical systems is a region of their joint phase space where one system is insensitive to the changes in the other. These can arise in a number of contexts, and their presence in phase interaction functions has interesting dynamical consequences for the emergent dynamics. In this paper, we consider dead zones in the interaction of general coupled dynamical systems. For weakly coupled limit cycle oscillators, we investigate criteria that give rise to dead zones in the phase interaction functions. We give applications to coupled multiscale oscillators where coupling on only one branch of a relaxation oscillation can lead to the appearance of dead zones in a phase description of their interaction.
Superfluid equation of state of dilute composite bosons
Creators: name: Leyronas, X.
name: Combescot, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present an exact theory of the BEC-BCS crossover in the BEC regime, which treats explicitely dimers as made of two fermions. We apply our framework, at zero temperature, to the calculation of the equation of state. We find that, when expanding the chemical potential in powers of the density n up to the Lee-Huang-Yang order, proportional to n^3/2, the result is identical to the one of elementary bosons in terms of the dimer-dimer scattering length a_M, the composite nature of the dimers appearing only in the next order term proportional to n^2 .
description: 5 pages, 3 figures
title: Musica instrumentalis (Meißen 1605): Einführung in die Edition
Creators: name: Braun, Lucinde
Publisher: name: DFG-Projekt "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
Year: 2023
Subjects: subject: Nicolaus Polantus
subject: 1605
subject: Meißen
subject: Meißener Dom, Frietzsch-Orgel 1603/1604
subject: Orgelpredigt
subject: Orgeleinweihung
subject: digitale Edition
subject: frühe Neuzeit
subject: deutschsprachiger Raum
subject: Musiktheorie
subject: Quellenbeschreibung
subject: Archive
subject: protestantische Kirchenmusik
subject: Musikgeschichte
subject: Kultur- und Sozialgeschichte
subject: Konfessionalisierung

description: Einführungstext zu der digitalen Edition der Orgelpredigt von Nicolaus Polantus im Rahmen des DFG-Projekts "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
Gerd Behrens, Der Mythos der deutschen Überlegenheit. Die deutschen Demokraten und die Entstehung des polnischen Staates 1916-1922
Creators: name: Trees, Pascal
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 2 (2015): „Aufbruch zur Demokratie?“ Aspekte einer Demokratiegeschichte Ostmitteleuropas (1918-1939)
Comment on "Spherically symmetric perturbations of a Schwarzschild black hole in torsion bigravity"
Creators: name: Spindel, Philippe
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The goal of this short note is to provide a simpler derivation of the effective potential surrounding a Schwarzschild black hole for spherically symmetric perturbations in the framework of torsion bigravity than the one presented in [V. Nikiforova, Spherically symmetric perturbations of a Schwarzschild black hole in torsion bigravity, Phys. Rev. D 104, 024032 (2021).]. We also discuss the unicity of the reduction process that leads to the potential.
description: 7 pages, text expanded, several typos corrected, first version entitled "A note on the derivation of a torsion bigravity Zerilli-like perturbation equation around a black hole."
Nonlinear Elasticity, Fluctuations and Heterogeneity of Nematic Elastomers
Creators: name: Xing, Xiangjun
name: Radzihovsky, Leo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Liquid crystal elastomers realize a fascinating new form of soft matter that is a composite of a conventional crosslinked polymer gel (rubber) and a liquid crystal. These {\em solid} liquid crystal amalgams, quite similarly to their (conventional, fluid) liquid crystal counterparts, can spontaneously partially break translational and/or orientational symmetries, accompanied by novel soft Goldstone modes. As a consequence, these materials can exhibit unconventional elasticity characterized by symmetry-enforced vanishing of some elastic moduli. Thus, a proper description of such solids requires an essential modification of the classical elasticity theory. In this work, we develop a {\em rotationally invariant}, {\em nonlinear} theory of elasticity for the nematic phase of ideal liquid crystal elastomers. We show that it is characterized by soft modes, corresponding to a combination of long wavelength shear deformations of the solid network and rotations of the nematic director field. We study thermal fluctuations of these soft modes in the presence of network heterogeneities and show that they lead to a large variety of anomalous elastic properties, such as singular length-scale dependent shear elastic moduli, a divergent elastic constant for splay distortion of the nematic director, long-scale incompressibility, universal Poisson ratios and a nonlinear stress-strain relation fo arbitrary small strains. These long-scale elastic properties are {\em universal}, controlled by a nontrivial zero-temperature fixed point and constitute a qualitative breakdown of the classical elasticity theory in nematic elastomers. Thus, nematic elastomers realize a stable ``critical phase'', characterized by universal power-law correlations, akin to a critical point of a continuous phase transition, but extending over an entire phase.
description: 61 pages, 24 eps pages, submitted to Annals of Physics
Cosmarium arcuatiporosum Van Westen et Coesel 2020, spec. nov.
Creators: name: Van Westen, Marien C.
name: Coesel, Peter F. M.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ranunculales
Ranunculaceae
Cosmarium
Cosmarium arcuatiporosum

description: Cosmarium arcuatiporosum Van Westen et Coesel spec. nov. (Figs 3, 16, 17, 18, 19, 27).
Diagnosis: cells about as long as broad with a deep, median constriction. Sinus narrowly linear with a dilated extremity. Semicells in frontal view semicircular-trapeziform, the outline in the upper part of the sides often not quite firm. Cell wall smooth. Cell wall pores within the margin confined to two, disjunct zones: a single, arch-shaped series of pores just above the isthmus and some two, transversal series just below the apex. Semicells in lateral view subcircular, in apical view elliptic, in the middle of each side a little bit inflated. Chloroplast with a single, central pyrenoid. Dimensions: cell length 19–25 µm, cell breadth 17–22 µm, cell thickness 10–12 µm, isthmus 6–9 µm. Zygospores globose, furnished with furcate spines. Diameter without spines 22–24 µm, with spines 31–34 µm.
Type:— THE NETHERLANDS. Drenthe: shallow pool in estate Dwingelderveld near Lhee, 52.812811° N, 6.240110° E, between Sphagnum and filamentous algae, pH 5.6, conductivity 27 µS cm-1. Van Westen, 07 May 2018 (holotype L! Hugo de Vries Lab 2019.03, preserved as a fixed natural sample).
Differential diagnosis:—In cell shape, C. arcuatiporosum somewhat resembles C. subtumidum Nordstedt and to a lesser extent C. phaseolus Ralfs. Apart from the fact that those latter species have larger cell dimensions, the main difference is found in the pattern of cell wall pores. Nordstedt (in Wittrock & Nordstedt 1878: 72) for C. subtumidum explicitly mentions a punctate cell wall. Ralfs (1848: 106, pl. 32: 5) describing C. phaseolus does not say anything about pores but depicts them as coarse dots all over the cell wall. So, neither of those species is characterized by the most peculiar pore pattern shown in our newly described species, a pattern for that matter that we do not know either of any other Cosmarium species. Confusion with similar looking species is possible, especially when the characteristic arc of pores above the isthmus is not clearly visible.
This species was found at only two locations in the province of Drenthe, between Sphagnum in a shallow artificial pool on loamy, sandy soil that was dug for nature restoration purposes. Fortunately, this species was also found sporulating in a sample taken in 1988 from a pool from the west of Ireland (Frans Kouwets, personal communication), that was kindly put at our disposal. Zygospores (Figs 3, 19) are depicted after Irish material.
description: Published as part of Van Westen, Marien C. & Coesel, Peter F. M., 2020, Taxonomic notes on desmids from the Netherlands III, with a description of five new species, pp. 107-115 in Phytotaxa 443 (1) on page 112, DOI: 10.11646/phytotaxa.443.1.10, http://zenodo.org/record/13878387
Treating Divergent Perturbation Theory: Lessons from Exactly Solvable 2D Models at Large $N$
Creators: name: Schubring, Daniel
name: Sheu, Chao-Hsiang
name: Shifman, Mikhail
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the operator product expansion (OPE) of correlation functions in the supersymmetric $O(N)$ non-linear sigma model at sub-leading order in the large $N$ limit in order to study the cancellation between ambiguities coming from infrared renormalons and those coming from various operators in the OPE. As has been discussed in the context of supersymmetric Yang-Mills theory in four dimensions, supersymmetry presents a challenge to this cancellation. In a bid to solve this problem we consider $O(N)$ as a toy model. A background field method inspired by Polyakov's treatment of the renormalization of the bosonic $O(N)$ model is used to identify explicit operators in the OPE of the two-point functions of bosonic and fermionic fields in the model. In order to identify the coefficient functions in the OPE, the exact two-point functions at sub-leading order in large $N$ are expanded in powers of the natural infrared length scale. The ambiguities arising from renormalons in the coefficient functions and vacuum expectation values of operators in the OPE are shown to cancel to all orders. The question of supersymmetric Yang-Mills theory without matter remains open.
description: 46 pages, 7 figures
Helmut Rumpler, Peter Urbanitsch (Hrsg.), Die Habsburgermonarchie 1848-1918. Band IX: Soziale Strukturen
Creators: name: Tönsmeyer, Tatjana
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2012

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 61 Nr. 1 (2012)
title: Musica instrumentalis (Meißen 1605): Exemplare
Creators: name: Braun, Lucinde
Publisher: name: DFG-Projekt "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
Year: 2023
Subjects: subject: Nicolaus Polantus
subject: 1605
subject: Meißen
subject: Meißener Dom, Frietzsch-Orgel 1603/1604
subject: Orgelpredigt
subject: Orgeleinweihung
subject: digitale Edition
subject: frühe Neuzeit
subject: deutschsprachiger Raum
subject: Kasualdrucke
subject: alte Drucke
subject: Mediengeschichte
subject: Bibliotheken
subject: Provenienzforschung

description: Exemplarbeschreibung zu der digitalen Edition der Orgelpredigt von Nicolaus Polantus im Rahmen des DFG-Projekts "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
Briggsia Craig & Randall, 2009, new genus
Creators: name: Craig, Matthew T.
name: Randall, John E.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Gobiesociformes
Gobiesocidae
Briggsia

description: Briggsia, new genus
 Type species: Briggsia hastingsi, new species
 Diagnosis: A monotypic genus of Aspasminae with no prominent vertical ridges on side of body; head large, its length 2.5 in SL; head width 3.9 in SL; body depth 6.1 in SL; disc double and moderately large, 3.9 in SL; dorsal and anal fins small, posterior on body, each with 4 rays; pectoral rays 23; gill rakers on second arch 9, on third arch 10; vertebrae 29.
 Description: As given below for the only known species.
 Etymology: Briggsia is named in honor of Dr. John C. Briggs, in recognition of his major contributions to clingfish systematics.
description: Published as part of Craig, Matthew T. & Randall, John E., 2009, Briggsia hastingsi, a new genus and species of clingfish from Oman, pp. 64-68 in Zootaxa 2271 on page 65, DOI: 10.5281/zenodo.190974
Błażej Białkowski, Utopie einer besseren Tyrannis. Deutsche Historiker an der Reichsuniversität Posen (1941-1945)
Creators: name: Lehr, Stefan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 4 (2013)
How particles emerge from decaying classical fields in heavy ion collisions: towards a kinetic description of the Glasma
Creators: name: Gelis, F.
name: Jeon, S.
name: Venugopalan, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We develop the formalism discussed previously in hep-ph/0601209 and hep-ph/0605246 to construct a kinetic theory that provides insight into the earliest ``Glasma'' stage of a high energy heavy ion collision. Particles produced from the decay of classical fields in the Glasma obey a Boltzmann equation whose novel features include an inhomogeneous source term and new contributions to the collision term. We discuss the power counting associated with the different terms in the Boltzmann equation and outline the transition from the field dominated regime to the particle dominated regime in high energy heavy ion collisions.
description: 29 pages, 16 postscript figures, some typos corrected
title: Vlmische Orgel Predigt (Ulm 1624)
Creators: name: Dieterich, Conrad
Publisher: name: DFG-Projekt "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
Year: 2023
Subjects: subject: Conrad Dieterich
subject: 1624
subject: Ulm, Münster
subject: Ulmer Münster, Sturm/Schott-Orgel 1578/1599
subject: Orgelpredigt
subject: Orgeleinweihung
subject: Einweihungspredigt
subject: digitale Edition
subject: frühe Neuzeit
subject: deutschsprachiger Raum
subject: Musiktheorie

description: Digitale Edition der Orgelpredigt von Conrad Dieterich im Rahmen des DFG-Projekts "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
A Generalized Concurrent Rule Construction for Double-Pushout Rewriting
Creators: name: Kosiol, Jens
name: Taentzer, Gabriele
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Double-pushout rewriting is an established categorical approach to the rule-based transformation of graphs and graph-like objects. One of its standard results is the construction of concurrent rules and the Concurrency Theorem pertaining to it: The sequential application of two rules can equivalently be replaced by the application of a concurrent rule and vice versa. We extend and generalize this result by introducing generalized concurrent rules (GCRs). Their distinguishing property is that they allow identifying and preserving elements that are deleted by their first underlying rule and created by the second one. We position this new kind of composition of rules among the existing ones and obtain a Generalized Concurrency Theorem for it. We conduct our work in the same generic framework in which the Concurrency Theorem has been presented, namely double-pushout rewriting in M-adhesive categories via rules equipped with application conditions.
description: 36 pages, 33 figures, accepted for publication at the 14th International Conference on Graph Transformation (ICGT) 2021
The trade-off between chain performance and fragility considering coordination strategies of agri-food chains: a South African egg chain's case study
Creators: name: Setene, Letlama
name: Jordaan, Daniel Du P.S.
name: Setene, Letlama
name: Jordaan, Daniel Du P.S.
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: International Development
subject: coordination strategies
subject: chain performance
subject: chain fragility
subject: interdependencies
subject: uncertainty
subject: agri-food chains

description: The mainstream strategy in the coordination of agri-food chains has traditionally focused more on the enhancement of chain performance by adopting lean and highly integrated strategies. These strategies are premised on the principle that governance structures are the result of tactics that economize on transaction costs in exchanges in chains. Due to existing interdependencies between chain players such strategies expose these chains to detrimentally disruptive uncertainty. This paper adopted a heuristic stress-testing approach to measure the fragility of South African egg value chain and performed a comparative fragility analysis of two coordination approaches in the egg chain. Additionally, the analysis of results indicated that the egg chain strategy with high levels of interdependencies between its chain players as significantly fragile. Precisely, the difference between the chain strategies was associated with a variety of differences at the factor and chain player levels that led up to a higher overall chain fragility of the chain with higher levels of interdependency. Inevitably, the paper propositions that there is a trade-off between chain performance and fragility. The results of the study affirmed that there is a trade-off between chain performance and fragility which needs to be balanced.
Miscellaneous Applications of Quons
Creators: name: Kibler, Maurice R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: This paper deals with quon algebras or deformed oscillator algebras, for which the deformation parameter is a root of unity. We show the interest of such algebras for fractional supersymmetric quantum mechanics, angular momentum theory and quantum information. More precisely, quon algebras are used for (i) a realization of a generalized Weyl-Heisenberg algebra from which it is possible to associate a fractional supersymmetric dynamical system, (ii) a polar decomposition of SU_2 and (iii) a construction of mutually unbiased bases in Hilbert spaces of prime dimension. We also briefly discuss (symmetric informationally complete) positive operator valued measures in the spirit of (iii).
description: This is a contribution to the Proc. of the 3-rd Microconference "Analytic and Algebraic Methods III"(June 19, 2007, Prague, Czech Republic), published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Dariusz Jerczyński, Józef Kożdoń a narodowość śląska
Creators: name: Struve, Kai
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 2 (2015): „Aufbruch zur Demokratie?“ Aspekte einer Demokratiegeschichte Ostmitteleuropas (1918-1939)
Equivalent Laplacian and Adjacency Quantum Walks on Irregular Graphs
Creators: name: Wong, Thomas G.
name: Lockhart, Joshua
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The continuous-time quantum walk is a particle evolving by Schrödinger's equation in discrete space. Encoding the space as a graph of vertices and edges, the Hamiltonian is proportional to the discrete Laplacian. In some physical systems, however, the Hamiltonian is proportional to the adjacency matrix instead. It is well-known that these quantum walks are equivalent when the graph is regular, i.e., when each vertex has the same number of neighbors. If the graph is irregular, however, the quantum walks evolve differently. In this paper, we show that for some irregular graphs, if the particle is initially localized at a certain vertex, the probability distributions of the two quantum walks are identical, even though the amplitudes differ. We analytically prove this for a graph with five vertices and a graph with six vertices. By simulating the walks on all 1,018,689,568 simple, connected, irregular graphs with eleven vertices or less, we found sixty-four graphs with this notion of equivalence. We also give eight infinite families of graphs supporting these equivalent walks.
description: 23 pages, 15 figures
title: Vlmische Orgel Predigt (Ulm 1624): Einführung in die Edition
Creators: name: Braun, Lucinde
Publisher: name: DFG-Projekt "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
Year: 2023
Subjects: subject: Conrad Dieterich
subject: 1624
subject: Ulm, Münster
subject: Ulmer Münster, Sturm/Schott-Orgel 1578/1599
subject: Orgelpredigt
subject: Orgeleinweihung
subject: digitale Edition
subject: frühe Neuzeit
subject: deutschsprachiger Raum
subject: Musiktheorie
subject: Quellenbeschreibung
subject: Archive
subject: protestantische Kirchenmusik
subject: Musikgeschichte
subject: Kultur- und Sozialgeschichte
subject: Konfessionalisierung

description: Einführungstext zu der digitalen Edition der Orgelpredigt von Conrad Dieterich im Rahmen des DFG-Projekts "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
Cosmarium logiensiforme Van Westen et Coesel 2020, spec. nov.
Creators: name: Van Westen, Marien C.
name: Coesel, Peter F. M.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ranunculales
Ranunculaceae
Cosmarium
Cosmarium logiensiforme

description: Cosmarium logiensiforme Van Westen et Coesel spec. nov. (Figs 1, 20, 21, 22, 28)
Diagnosis: cells 1.3-1.4 times longer than broad, with a deep, linear constriction. Sinus narrowly linear with a dilated extremity. Semicells in frontal view trapeziform to semi-elliptic with broadly rounded basal angles. Cell wall furnished with evenly distributed granules. Semicells in lateral view about circular, in apical view broadly elliptic. Chloroplast with two pyrenoids. Dimensions: cell length 33-41 µm, cell breadth 25-30 µm, cell thickness 17-20 µm, isthmus 10–12 µm.
Type:— THE NETHERLANDS. Limburg: shallow pool in estate De Hamert, near Wellerlooi, 51.531886° N, 6.183763° E, between Sphagnum and Utricularia minor, pH 4.0 and conductivity 383 µS cm-1. Van Westen, 16 June 2018 (holotype L! Hugo de Vries Lab 2019.04, preserved as a fixed natural sample)
Differential diagnosis:— C. logiensiforme resembles C. logiense Bisset as described in the well-known flora by West & West (1908: 163, pl. 80: 1-2). However, cell dimensions in our alga are almost twice as small as those in C. logiense and there is also a difference in the pattern of cell wall granules. Where in West & West (l.c.) there is talk of granules that are densely arranged in obliquely decussating and vertical series, granules in C. logiensiforme are evenly distributed without showing any special pattern. For that matter, it has to be remarked that the original description of C. logiense by Bisset (1884: 194, pl. 5: 4) does not indicate the above-mentioned pattern of granulation, neither in the diagnosis nor in the accompanying figure. Moreover, cell dimensions are larger and semicells are more reniform than those represented in West & West (l.c.) so it is questionable whether one and the same species is at issue.
Anyhow, it should be clear that our alga under discussion, despite a rough similarity, represents another species than C. logiense either in the original description by Bisset (1884) or in the concept by West & West (1908).
The type material of C. logiensiforme originates from an acidic, mesotrophic moorland pool in the Dutch province of Limburg but the species in question was already found earlier in nature reserve ‘De Teut’ (in adjacent Belgium) where it occurred rather abundantly in oligotrophic bog pools.
description: Published as part of Van Westen, Marien C. & Coesel, Peter F. M., 2020, Taxonomic notes on desmids from the Netherlands III, with a description of five new species, pp. 107-115 in Phytotaxa 443 (1) on page 113, DOI: 10.11646/phytotaxa.443.1.10, http://zenodo.org/record/13878387
Die Kritik der ungarischen Medien an der Politik des „Bruderstaates“ Rumänien in den letzten zwei Jahren des Ceauşescu-Regimes (1987-1989)
Creators: name: Weber, Petru
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2010

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 59 Nr. 4 (2010): 1989 als mediales Ereignis
Charge frustration and quantum criticality for strongly correlated fermions
Creators: name: Huijse, Liza
name: Halverson, James
name: Fendley, Paul
name: Schoutens, Kareljan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a model of strongly correlated electrons on the square lattice which exhibits charge frustration and quantum critical behavior. The potential is tuned to make the interactions supersymmetric. We establish a rigorous mathematical result which relates quantum ground states to certain tiling configurations on the square lattice. For periodic boundary conditions this relation implies that the number of ground states grows exponentially with the linear dimensions of the system. We present substantial analytic and numerical evidence that for open boundary conditions the system has gapless edge modes.
description: 5 pages, 4 figures, 1 table; slightly extended version of published paper
Jerzy Kozłowski, Niemcy w Poznańskiem wobec Wiosny Ludów 1848-1850
Creators: name: Myschor, Christian
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2012

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 61 Nr. 1 (2012)
Gonadotropin involvement in the control of oocyte maturation and ovulation in coho salmon (Oncorynchus kisutch) : neuroendocrine control of gonadotropin secretion, effects on steroid production and properties of ovarian gonadotropin binding sites
Creators: name: Van Der Kraak, Glen John
Publisher: name: University of British Columbia
Year: 2010

description: The involvement of gonadotropin in the regulation of reproductive development in coho salmon (Oncorhynchus kisutch) was studied by monitoring changes in plasma gonadotropin and steroid hormone levels and the induction of oocyte maturation and ovulation following the administration of gonadotropin releasing-hormones (Gn-RH). Further studies examined the properties of gonadotropin binding sites in ovaries from adult coho salmon and immature chum salmon (O. keta). Intraperitoneal injections of luteinizing hormone-releasing hormone (LH-RH), its active analog des-Gly¹⁰ [D-Ala⁶]LH-RH-ethylamide (LH-RHA DAIa⁶) and chum salmon Gn-RH caused an increase in plasma gonadotropin levels. LH-RHA DAla⁶, which had a more prolonged effect on the maintenance of elevated plasma gonadotropin levels than LH-RH and chum salmon Gn-RH, induced oocyte maturation and ovulation. Intraperitoneal injections of pimozide, a dopamine receptor antagonist, also increased plasma gonadotropin levels suggesting that endogenous dopamine may inhibit gonadotropin secretion. Pimozide potentiated the effects of LH-RHA DAla& on gonadotropin release. Studies comparing the effects of partially purified salmon gonadotropin (SG-G100) and LH-RHA DAla⁶ on the induction of ovulation demonstrated that the induction of ovulation was dependant on the duration rather than the magnitude of the initial increase in plasma gonadotropin levels. Plasma testosterone and 17α,20βdihydroxy-4-pregnene-3-one (17α2OβP) levels were increased and 17β-estradiol levels decreased following an elevation of plasma gonadotropin levels. High levels of 17α20βP were associated with both spontaneous and gonadotropin induced oocyte maturation. Declining 17β-estradiol production appears to determine the time of oocyte maturation and ovulation by having a permissive effect on 17α20βP production. The presence of a gonadotropin receptor was demonstrated for the first time in the salmonid ovary. Gonadotropin binding to immature chum salmon ovaries was a saturable process as the uptake of ¹²⁵I-labeled salmon gonadotropin was reduced .in a dose dependant manner by unlabeled gonadotropin. Gonadotropin binding was attributed to a single class of high affinity binding sites present in limited numbers. Similar sites were not present in liver, kidney or muscle. The ability of various teleost and mammalian gonadotropins to decrease the binding of ¹²⁵I-labeled salmon gonadotropin to ovarian tissue was in agreement with the ability of these hormone preparations to stimulate steroid production in vitro. Gonadotropin binding sites were demonstrated in thecal and granulosa cell layers from adult coho salmon, although the levels of binding were lower than those for immature chum salmon ovaries.
title: Vlmische Orgel Predigt (Ulm 1624): Exemplare
Creators: name: Braun, Lucinde
Publisher: name: DFG-Projekt "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
Year: 2023
Subjects: subject: Conrad Dieterich
subject: 1624
subject: Ulm, Münster
subject: Ulmer Münster, Sturm/Schott-Orgel 1578/1599
subject: Orgelpredigt
subject: Orgeleinweihung
subject: digitale Edition
subject: frühe Neuzeit
subject: deutschsprachiger Raum
subject: Kasualdrucke
subject: alte Drucke
subject: Mediengeschichte
subject: Bibliotheken
subject: Provenienzforschung

description: Exemplarbeschreibung zu der digitalen Edition der Orgelpredigt von Conrad Dieterich im Rahmen des DFG-Projekts "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
สมเด็จพระเทพรัตนราชสุดาฯ สยามบรมราชกุมารี กับการอนุรักษ์และพัฒนาทรัพยากร
Creators: name: นายพรชัย จุฑามาศ
Publisher: name: Genetics Society of Thailand
Year: 2013
Subjects: -

description: S1 (Special Issue 1), S.1, Thai Journal of Genetics
On an explicit construction of Parisi landscapes in finite dimensional Euclidean spaces
Creators: name: Fyodorov, Yan V.
name: Bouchaud, Jean-Philippe
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We construct a N-dimensional Gaussian landscape with multiscale, translation invariant, logarithmic correlations and investigate the statistical mechanics of a single particle in this environment. In the limit of high dimension N>>1 the free energy of the system in the thermodynamic limit coincides with the most general version of Derrida's Generalized Random Energy Model. The low-temperature behaviour depends essentially on the spectrum of length scales involved in the construction of the landscape. We argue that our construction is in fact valid in any finite spatial dimensions, starting from N=1.
description: 4 pages, no figures
การตรวจวิเคราะห์จานวนชุดของยีน PMP22 ในโรคพันธุกรรมความผิดปกติของระบบประสาทส่วนปลายที่พบบ่อย: CMT1A and HNPP (Determination  of  PMP22  Gene Copy Number in Two Common Inherited Peripheral Neuropathies: CMT1A and HNPP)
Creators: name: สุนิสา สวัสดิไชย
Publisher: name: Genetics Society of Thailand
Year: 2013
Subjects: PMP22, CMT1A, HNPP, gene copy number, DHPLC

description: S1 (Special Issue 1), S.1, Thai Journal of Genetics
Addressing multilingualism in the GoTriple discovery platform
Creators: name: Dumouchel, Suzanne
Publisher: name: Zenodo
Year: 2022
Subjects: Social sciences and humanities, multilingualism, discovery platform, controlled vocabularies, data classification and annotation

description: Presentation made during the NISO+ Conference (feb. 2022) "Global Conversations : Global Connections" in the panel " Bibliodiversity in transition: how open infrastructures support multilingualism (or not)".
Steffen Höhne, Ludger Udolph (Hrsg.), Franz Spina (1868-1938). Ein Prager Slavist zwischen Universität und politischer Öffentlichkeit
Creators: name: Lehr, Stefan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 4 (2013)
title: Vlmische Orgel Predigt (Ulm / Frankfurt a. M. 1625)
Creators: name: Dieterich, Conrad
Publisher: name: DFG-Projekt "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
Year: 2023
Subjects: subject: Conrad Dieterich
subject: 1625
subject: Ulm
subject: Orgel
subject: Orgelpredigt
subject: Orgeleinweihung
subject: Einweihungspredigt
subject: digitale Edition
subject: frühe Neuzeit
subject: deutschsprachiger Raum
subject: Musiktheorie

description: Digitale Edition der Orgelpredigt von Conrad Dieterich im Rahmen des DFG-Projekts "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
Triangular phase-shift detector for drone precise vertical landing RF systems
Creators: name: Araña-Pulido, Víctor
name: Jiménez-Yguácel, Eugenio
name: Cabrera-Almeida, Francisco
name: Quintana-Morales, Pedro
Publisher: name: arXiv
Year: 2024
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents a circuit for precise vertical landing of drones based on a three phase-shifts detection of a single frequency transmitted from the landing point. The circuit can be considered as a new navigation sensor that assists in guidance corrections for landing at a specific point. The circuit has three inputs to which the signal transmitted from an oscillator located at the landing point arrives with different delays. The input signals are combined in pairs in each of the three analog phase detectors, after having passed through 3 dB@90 o hybrid couplers that guarantee a theoretical non-ambiguous phase-shift range of +-90 degree. Each output has a voltage that is proportional to the phase-shift between each of the input signals, which in turn depend on the position relative to the landing point. A simple landing algorithm based on phase-shift values is proposed, which could be integrated into the same flight control platform, thus avoiding the need to add additional processing components. To demonstrate the feasibility of the proposed design, a triangular phase-shift detector prototype has been implemented using commercial devices. Calibration and measurements at 2.46 GHz show a dynamic range of 30 dB and a non-ambiguous detection range of +-80 degree in the worst cases. Those specs let us to track the drone during the landing maneuver in an inverted cone formed by a surface with a +-4.19 m radius at 10m high and the landing point.
description: The paper has been accepted by IEEE Transactions on Instrumentation and Measurement, vol. 70, pp. 1-8, 2021
A Note on Kerr/CFT and Wald Entropy Discrepancy in High Derivative Gravities
Creators: name: Liu, Hai-Shan
name: Lu, H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We examine the Kerr/CFT correspondence in Einstein gravity extended with quadratic curvature invariants. We consider two explicit examples in four and five dimensions and compute the central charges of the asymptotic symmetry algebras of the near horizon geometries, using the improved version of the BBC formalism that encompasses the information of the Lagrangian. We find that the resulting Cardy entropy differs from the Wald entropy, caused by the Riemann-squared $R^{μνρσ}R_{μνρσ}$ term.
description: Latex, 17 pages
Klaus Kempter, Joseph Wulf. Ein Historikerschicksal in Deutschland
Creators: name: Friedrich, Klaus-Peter
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2015

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 64 Nr. 2 (2015): „Aufbruch zur Demokratie?“ Aspekte einer Demokratiegeschichte Ostmitteleuropas (1918-1939)
M31 Transverse Velocity and Local Group Mass from Satellite Kinematics
Creators: name: van der Marel, Roeland P.
name: Guhathakurta, Puragra
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present several different statistical methods to determine the transverse velocity vector of M31. The underlying assumptions are that the M31 satellites on average follow the motion of M31 through space, and that the galaxies in the outer parts of the Local Group on average follow the motion of the Local Group barycenter through space. We apply the methods to the line-of-sight velocities of 17 M31 satellites, to the proper motions of the 2 satellites M33 and IC 10, and to the line-of-sight velocities of 5 galaxies near the Local Group turn around radius, respectively. This yields 4 independent but mutually consistent determinations of the heliocentric M31 transverse velocities in the West and North directions, with weighted averages = -78+/-41 km/s and = -38+/-34 km/s. The Galactocentric tangential velocity of M31 is 42 km/s, with 1-sigma confidence interval V_tan <= 56 km/s. The implied M31-Milky Way orbit is bound if the total Local Group mass M exceeds 1.72^{+0.26}_{-0.25}x10^{12} solar masses. If indeed bound, then the timing argument combined with the known age of the Universe implies that M = 5.58^{+0.85}_{-0.72}x10^{12} solar masses. This is on the high end of the allowed mass range suggested by cosmologically motivated models for the individual structure and dynamics of M31 and the Milky Way, respectively. It is therefore possible that the timing mass is an overestimate of the true mass, especially if one takes into account recent results from the Millennium Simulation that show that there is also a theoretical uncertainty of 41 percent (Gaussian dispersion) in timing mass estimates. The M31 transverse velocity implies that M33 is in a tightly bound orbit around M31. This may have led to some tidal deformation of M33. It will be worthwhile to search for observational evidence of this.
description: ApJ in press, 14 pages, including 3 figures (has minor revisions with respect to previously posted version to address referee comments)
The white pine industry and the transformation of nineteenth-century Michigan
Creators: name: Neithercut, Mark Edward
Publisher: name: University of British Columbia
Year: 2010

description: The white pine industry dominated the initial settlement and subsequent development of the northern two-thirds of the State of Michigan's Lower Peninsula. Between 1860 and 1910 northern Lower Michigan was transformed from forest to cutover; during this same period industrial technology was utilized increasingly to cut, transport, and mill white pine. This study is a historical geography of a nineteenth—century primary resource region. It investigates the geography of the Michigan white pine industry, and analyzes the geographical implications of industrialization. The evolving pattern of resource exploitation is examined, with detailed attention given to (1) environmental impact, (2) spatial organization, (3) patterns of land ownership, (4) scale of production, and (5) transportation of logs from stump to sawmill and of lumber from mill to market. Personal letters and diaries, newspapers, annual reports of government agencies, and account books and correspondence of lumber firms are used as primary data sources. The widespread adoption of technological innovations was found to have dramatically transformed the lumber industry during the late 19th century. In 1860 lumbering was a small—scale, seasonal industry based on human labor and water, wind, and animal power. By 1880 the scale of production had grown significantly, logging was less dependent upon seasonal rhythms, and steam power had increased the dependability of log transportation. A mechanized, rationalized, capital-intensive industry had emerged. Industrialization was found to have greatly enhanced the impact of lumbering on the landscape. Large contiguous tracts of timberland remained unbroken due to the growing scale of forest production and the frequent re—cutting of tracts. Logging became increasingly less selective as improved milling machines utilized smaller logs and woods other than pine. The use of railroads to haul logs and to supply camps extended the lumber economy throughout the region and facilitated the concentration of milling and wood manufacturing in lakeshore mill towns.
Equilibrium free energies from non-equilibrium metadynamics
Creators: name: Bussi, Giovanni
name: Laio, Alessandro
name: Parrinello, Michele
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In this paper we propose a new formalism to map history-dependent metadynamics in a Markovian process. We apply this formalism to a model Langevin dynamics and determine the equilibrium distribution of a collection of simulations. We demonstrate that the reconstructed free energy is an unbiased estimate of the underlying free energy and analytically derive an expression for the error. The present results can be applied to other history-dependent stochastic processes such as Wang-Landau sampling.
title: Vlmische Orgel Predigt (Ulm / Frankfurt a. M. 1625): Einführung in die Edition
Creators: name: Braun, Lucinde
Publisher: name: DFG-Projekt "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"
Year: 2023
Subjects: subject: Conrad Dieterich
subject: 1625
subject: Ulm
subject: Orgel
subject: Orgelpredigt
subject: Orgeleinweihung
subject: digitale Edition
subject: frühe Neuzeit
subject: deutschsprachiger Raum
subject: Musiktheorie
subject: Quellenbeschreibung
subject: Archive
subject: protestantische Kirchenmusik
subject: Musikgeschichte
subject: Kultur- und Sozialgeschichte
subject: Konfessionalisierung

description: Einführungstext zu der digitalen Edition der Orgelpredigt von Conrad Dieterich im Rahmen des DFG-Projekts "Deutsche Orgelpredigtdrucke zwischen 1600 und 1800 – Katalogisierung, Texterfassung, Auswertung"