cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Advanced Image Enhancement Method for Distant Vessels and Structures in Capsule Endoscopy
Creators: name: Rukundo, Olivier
name: Pedersen, Marius
name: Hovde, Øistein
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This paper proposes an advanced method for contrast enhancement of capsule endoscopic images, with the main objective to obtain sufficient information about the vessels and structures in more distant (or darker) parts of capsule endoscopic images. The proposed method (PM) combines two algorithms for the enhancement of darker and brighter areas of capsule endoscopic images, respectively. The half-unit weighted bilinear algorithm (HWB) proposed in our previous work is used to enhance darker areas according to the darker map content of its HSV's component V. Enhancement of brighter areas is achieved thanks to the novel thresholded weighted-bilinear algorithm (TWB) developed to avoid overexposure and enlargement of specular highlight spots while preserving the hue, in such areas. The TWB performs enhancement operations following a gradual increment of the brightness of the brighter map content of its HSV's component V. In other words, the TWB decreases its averaged-weights as the intensity content of the component V increases. Extensive experimental demonstrations were conducted, and based on evaluation of the reference and PM enhanced images, a gastroenterologist (ØH) concluded that the PM enhanced images were the best ones based on the information about the vessels, contrast in the images, and the view or visibility of the structures in more distant parts of the capsule endoscopy images.
description: 8 pages, 12 figures, 4 tables
An essential relation between Einstein metrics, volume entropy, and exotic smooth structures
Creators: name: Brunnbauer, Michael
name: Ishida, Masashi
name: Suárez-Serrato, Pablo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 53C23, 57R57, 53C25, 57R55

description: We show that the minimal volume entropy of closed manifolds remains unaffected when nonessential manifolds are added in a connected sum. We combine this result with the stable cohomotopy invariant of Bauer-Furuta in order to present an infinite family of four-manifolds with the following properties: 1) They have positive minimal volume entropy. 2) They satisfy a strict version of the Gromov-Hitchin-Thorpe inequality, with a minimal volume entropy term. 3) They nevertheless admit infinitely many distinct smooth structures for which no compatible Einstein metric exists.
description: 12 pages, v2; two references added, to appear in Math. Research Letters
Phonon and Electronic Non-radiative Decay of Excitons in Carbon Nanotubes
Creators: name: Perebeinos, Vasili
name: Avouris, Phaedon
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate theoretically the rates of non-radiative decay of excited semiconducting nanotubes by a variety of decay mechanisms and compare with experimental findings. We find that the multi-phonon decay (MPD) of free excitons is too slow to be responsible for the experimentally observed lifetimes. However, MPD lifetimes of localized excitons could be 2-3 orders of magnitude shorter. We also propose a new decay mechanism that relies on a finite doping of nanotubes and involves exciton decay into an optical phonon and an intraband electron-hole pair. The resulting lifetime is in the range of 5 to 100 ps, even for a moderate doping level.
description: 4 pages, 3 figures, + 7 pages, 3 figures in attached appendix
Vacuum polarization and plasma oscillations
Creators: name: Ruffini, R.
name: Vereshchagin, G. V.
name: Xue, S. -S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We evidence the existence of plasma oscillations of electrons-positron pairs created by the vacuum polarization in an uniform electric field with E < Ec. Our general treatment, encompassing also the traditional, well studied case of E > Ec, shows the existence in both cases of a maximum Lorentz factor acquired by electrons and positrons and allows determination of the a maximal length of oscillation. We quantitatively estimate how plasma oscillations reduce the rate of pair creation and increase the time scale of the pair production. These results are particularly relevant in view of the experimental progress in approaching the field strengths E < Ec.
description: to appear in Phys. Lett. A
Bounds for Bayesian order identification with application to mixtures
Creators: name: Chambaz, Antoine
name: Rousseau, Judith
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The efficiency of two Bayesian order estimators is studied. By using nonparametric techniques, we prove new underestimation and overestimation bounds. The results apply to various models, including mixture models. In this case, the errors are shown to be $O(e^{-an})$ and $O((\log n)^b/\sqrt{n})$ ($a,b>0$), respectively.
description: Published in at http://dx.doi.org/10.1214/009053607000000857 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
La spinosa questione del confine amministrativo tra Cecenia ed Inguscezia si risolve, non senza proteste, dopo ben 26 anni
Creators: name: Di Gregorio, Angela
Publisher: name: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS)
Year: 2019

description: After 26 years of confrontation, the uneasy issue of the administrative border between Chechnya and Ingushetia has been resolved, even if between street protests.

In the judgment of 6 December 2018 the Russian Constitutional Court was asked to resolve a rather thorny issue, namely the legitimacy of the agreement, reached following 26 years of negotiations between the (internal) Republics of Ingushetia and Chechnya, that established the administrative border. The applicant, the Head of the Republic of Inguscetia, asked for confirmation of the legitimacy of the acts despite the decision of the Constitutional Court of Ingushetia.
description: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS), V. 1, N. 1 (2019)
Bolsonaro e i popoli indigeni
Creators: name: Rosti, Marzia
Publisher: name: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS)
Year: 2019

description: Jair Bolsonaro recently ratified Medida Provisória n. 870, which transfers the competence to define the boundaries of indigenous lands from the current incumbent, Fundação Nacional do Indo (FUNAI), to the Ministry of Agriculture.

The Minister of Agriculture, Tereza Cristina Corrêa da Costa Dias, represents the agricultural landlords who have an interest in increasing the land devoted to grazing and soybean cultivation.
This decision endangers and disadvantages all the indigenous people, especially those living in Amazonia
description: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS), V. 1, N. 1 (2019)
Acta Nuntiaturae Polonae moderatore Henrico Damiano Wojtyska CP. Tomus III/1. Tomus IX. Tomus XXIV
Creators: name: Bues, Almut
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1996

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 45 Nr. 2 (1996)
Single-Pion Production in pp Collisions at 0.95 GeV/c (II)
Creators: name: El-Samad, S. Abd
name: Bilger, R.
name: Brinkmann, K. Th.
name: Clement, H.
name: Dietrich, M.
name: Doroshkevich, E.
name: Dshemuchadse, S.
name: Ehrhardt, K.
name: Erhardt, A.
name: Eyrich, W.
name: Filippi, A.
name: Freiesleben, H.
name: Fritsch, M.
name: Geyer, R.
name: Gillitzer, A.
name: Hauffe, J.
name: Hesselbarth, D.
name: Jaekel, R.
name: Jakob, B.
name: Karsch, L.
name: Kilian, K.
name: Kress, J.
name: Kuhlmann, E.
name: Marcello, S.
name: Marwinski, S.
name: Meier, R.
name: Moeller, K.
name: Morsch, H. P.
name: Naumann, L.
name: Ritman, J.
name: Roderburg, E.
name: Schoenmeier, P.
name: Schulte-Wissermann, M.
name: Schroeder, W.
name: Stinzing, F.
name: Sun, G. Y.
name: Waechter, J.
name: Wagner, G. J.
name: Wagner, M.
name: Weidlich, U.
name: Wilms, A.
name: Wirth, S.
name: Zhang, G.
name: Zupranski, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The single-pion production reactions $pp\to dπ^+$, $pp\to npπ^+$ and $pp\to ppπ^0$ were measured at a beam momentum of 0.95 GeV/c ($T_p \approx$ 400 MeV) using the short version of the COSY-TOF spectrometer. The central calorimeter provided particle identification, energy determination and neutron detection in addition to time-of-flight and angle measurements from other detector parts. Thus all pion production channels were recorded with 1-4 overconstraints. Main emphasis is put on the presentation and discussion of the $npπ^+$ channel, since the results on the other channels have already been published previously. The total and differential cross sections obtained are compared to theoretical calculations. In contrast to the $ppπ^0$ channel we find in the $npπ^+$ channel a strong influence of the $Δ$ excitation already at this energy close to threshold. In particular we find a $(3 cos^2Θ+ 1)$ dependence in the pion angular distribution, typical for a pure s-channel $Δ$ excitation and identical to that observed in the $dπ^+$ channel. Since the latter is understood by a s-channel resonance in the $^1D_2$ $pn$ partial wave, we discuss an analogous scenario for the $pnπ^+$ channel.
Asymptotic expansion of the solution of the master equation and its application to the speed limit
Creators: name: Nakajima, Satoshi
name: Utsumi, Yasuhiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We investigate an asymptotic expansion of the solution of the master equation under the modulation of control parameters. In this case, the non-decaying part of the solution becomes the dynamical steady state expressed as an infinite series using the pseudo-inverse of the Liouvillian, whose convergence is not granted in general. We demonstrate that for the relaxation time approximation model, the Borel summation of the infinite series is compatible with the exact solution. By exploiting the series expansion, we obtain the analytic expression of the heat and the activity. In the two-level system coupled to a single bath, under the linear modulation of the energy as a function of time, we demonstrate that the infinite series expression is the asymptotic expansion of the exact solution. The equality of a trade-off relation between the speed of the state transformation and the entropy production (Shiraishi, Funo, and Saito, Phys. Rev. Lett. ${\bf 121}$, 070601 (2018)) holds in the lowest order of the frequency of the energy modulation in the two-level system. To obtain this result, the heat emission and absorption at edges (the initial and end times) or the differences of the Shannon entropy between the instantaneous steady state and the dynamical steady state at edges are essential: If we ignore these effects, the trade-off relation can be violated.
description: 9 pages, 3 figures
Spacelike hypersurfaces with constant mean curvature in the steady state space
Creators: name: Albujer, Alma L.
name: Alias, Luis J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53C42, 53C50

description: We consider complete spacelike hypersurfaces with constant mean curvature in the open region of de Sitter space known as the steady state space. We prove that if the hypersurface is bounded away from the infinity of the ambient space, then the mean curvature must be H=1. Moreover, in the 2-dimensional case we obtain that the only complete spacelike surfaces with constant mean curvature which are bounded away from the infinity are the totally umbilical flat surfaces. We also derive some other consequences for hypersurfaces which are bounded away from the future infinity. Finally, using an isometrically equivalent model for the steady state space, we extend our results to a wider family of spacetimes.
description: First version (May 2007). Final version (February 2008). To appear in Proceedings of the A.M.S
Katholische Kirche und Zivilgesellschaft in Osteuropa. Postkommunistische Transformationsprozesse in Polen, Tschechien, der Slowakei und Litauen
Creators: name: Hein, Heidi
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 3 (2004)
Gravity Cutoff in Theories with Large Discrete Symmetries
Creators: name: Dvali, Gia
name: Redi, Michele
name: Sibiryakov, Sergey
name: Vainshtein, Arkady
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We set an upper bound on the gravitational cutoff in theories with exact quantum numbers of large N periodicity, such as Z_N discrete symmetries. The bound stems from black hole physics. It is similar to the bound appearing in theories with N particle species, though a priori, a large discrete symmetry does not imply a large number of species. Thus, there emerges a potentially wide class of new theories, that address the hierarchy problem by lowering the gravitational cutoff due to existence of large Z_{10^32}-type symmetries.
description: example and discussion added
DNA marker for A1 and A2 Musa genome identification
Creators: name: Chanram Roopkham
name: Benchamas Silayoi
name: Savitr Trakulnaleamsai
name: Somsak Apisitwanich
Publisher: name: Genetics Society of Thailand
Year: 2011
Subjects: banana, Musa, DNA marker, SSH

description: 1, 4, Thai Journal of Genetics
Investigation of underground mine pillar design procedures
Creators: name: Potvin, Yves
Publisher: name: University of British Columbia
Year: 2010

description: The principal functions of underground mine pillars are to stabilize openings and to carry the load of overlying rock strata. They are often (partially or completely) recovered at a later stage when their stabilizing effect is no longer required. For economic reasons, an optimum-sized pillar is the smallest one satisfying safety requirements. Thus the pillar design problem consists of determining the pillar's minimum dimensions as the load approaches the ultimate pillar strength. Because the pillar's strength and the load acting upon it are both functions of many interrelated factors, which may vary as mining progresses, the determination of pillar dimensions is a complex task. Furthermore, the multiplicity of pillar shapes, sizes, rock material and functions add to the designers' problem. Consequently, pillar design programs are still generally performed as a trial-and-error process. In order, to improve the present pillar design practices (1) -AApillar classification is proposed to standardize the design procedure (2) The principal design methods, divided into four groups, are summarized and their applicability is is defined (3) A five-phase design procedure with design charts is developed (4) The design procedure is applied in analysing two case histories
Anna Hyndráková, Helena Krejčová, Jana Svobodová, Prominenti v ghettu Terezín (1942-1945). Edice dokumentu
Creators: name: Wörster, Peter
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2000

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 49 Nr. 3 (2000)
Gauge-independent Abelian mechanism of color confinement in gluodynamics
Creators: name: Suzuki, Tsuneo
name: Ishiguro, Katsuya
name: Koma, Yoshiaki
name: Sekido, Toru
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Abelian mechanism of non-Abelian color confinement is observed in a gauge-independent way by high precision lattice Monte Carlo simulations in gluodynamics. An Abelian gauge field is extracted with no gauge-fixing. A static quark-antiquark potential derived from Abelian Polyakov loop correlators gives us the same string tension as the non-Abelian one. The Hodge decomposition of the Abelian Polyakov loop correlator to the regular photon and the singular monopole parts also reveals that only the monopole part is responsible for the string tension. The investigation of the flux-tube profile then shows that Abelian electric fields defined in an arbitrary color direction are squeezed by monopole supercurrents with the same color direction, and the quantitative features of flux squeezing are consistent with those observed previously after Abelian projections with gauge fixing. Gauge independence of Abelian and monopole dominance strongly supports that the mechanism of non-Abelian color confinement is due to the Abelian dual Meissner effect.
description: 4 pages, 6 Postscript figures
Piotr Greiner, Ryszard Kaczmarek, Leksykon organizacji niemieckich w województwie śląskim (1922-1939)
Creators: name: Nordblom, Pia
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1996

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 45 Nr. 2 (1996)
title: Parlement[s] Revue d'histoire politique. 2014-1, n° 21
title: Un parlementarisme allemand ?
titleType: Subtitle
Creators: name: (:Unap)
Publisher: name: Classiques Garnier
Year: 2014
Subjects: subject: Histoire du parlementarisme
subject: Histoire politique
subject: Histoire de l'Allemagne
subject: Science politique
subject: Droit constitutionnel

description: Contributeurs : Estelle Bomberger, Johann Chapoutot, Philippe Jian, Thomas Mergel, Nicolas Patin, Eva Patzelt, Lionel Picard, Dominik Rigoll et Céline Vintzel.
Plasmonics in the visible domain for a one-dimensional truncated photonic crystal terminated by graphene: sensing beyond Dirac point's approximation
Creators: name: Ghatar, A. Alidoust
name: Jahani, D.
name: Fritzche, W.
name: Garwe, F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Visible surface plasmon resonances (SPRs) could be excited by TE wave polarization in one-dimensional photonic crystals (PCs) coated by a graphene layer under the Kretschmann configuration. In this work, the plasmonic Bloch wave properties beyond Dirac points in a one-dimensional graphene-based photonic sensing structure have been numerically studied. We demonstrate that emergent plasmonic dips in the reflectance spectra of the suggested photonic device in the visible region exhibit tunable characteristics upon modulation of the chemical potential and the hopping parameter. The sensitivity of the sensor in the visible domain has been numerically evaluated and also was compared with those considering the surface plasmon resonances in the terahertz regime.
Cuba: una Costituzione per le sfide del XXI secolo
Creators: name: Guida, Alessandro
name: Del Guercio, Adele
Publisher: name: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS)
Year: 2019

description: On February 24th 2019, by referendum, the majority of the Cuban population said “yes” to the new Constitution approved on December 22nd 2018 by the delegates of the National Assembly of People’s Power. The new Charter replaced that of 1976, as modified by the reforms of 1992 and 2002. It is not the first time, in fact, that the Cuban ruling class has been able to adapt the constitutional regime of the country to the changes occurred on the international plan and to the new requirements progressively emerged internally. The essay aims to analyze, from a historical perspective, the basic reasons that led the Cuban government to provide the country with a new fundamental Charter, highlighting, at the same time, the most significant innovations introduced.
description: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS), V. 1, N. 1 (2019)
L’instabile equilibrio costituzionale israeliano: simboli e diavoli della Basic Law sullo Stato Nazione
Creators: name: Campelli, Enrico
Publisher: name: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS)
Year: 2019

description: The essay aims to analyze the debate following the adoption of the Basic Law: Israel as the Nation State of the Jewish People. It is widely expressed opinion that this document, last chapter of the Israeli ‘progressive constitutionalism project’, represents an element of polarization and profound division between the different ‘souls’ that constitute the variegated Israeli legal system. The paper will therefore try to reconstruct the complex characteristics of the new legislation and the contrasting reactions it has provoked, trying to highlight the most significant consequences from a legal and political point of view, and not failing to emphasize the context, very unusual, of their discussion and application.
description: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS), V. 1, N. 1 (2019)
Stability of the decagonal quasicrystal in the Lennard-Jones-Gauss system
Creators: name: Engel, Michael
name: Trebin, Hans-Rainer
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Although quasicrystals have been studied for 25 years, there are many open questions concerning their stability: What is the role of phason fluctuations? Do quasicrystals transform into periodic crystals at low temperature? If yes, by what mechanisms? We address these questions here for a simple two-dimensional model system, a monatomic decagonal quasicrystal, which is stabilized by the Lennard-Jones-Gauss potential in thermodynamic equilibrium. It is known to transform to the approximant Xi, when cooled below a critical temperature. We show that the decagonal phase is an entropically stabilized random tiling. By determining the average particle energy for a series of approximants, it is found that the approximant Xi is the one with lowest potential energy.
description: 7 pages, 2 figures, Proceedings of Quasicrystals - The Silver Jubilee
Mimonoside D: a new triterpenoid saponin from Mimosa diplotricha Sauvalle (Fabaceae)
Creators: name: Kenmogne, Claudie Fokou
name: Ponou, Beaudelaire Kemvoufo
name: Kemkuignou, Blondelle Matio
name: Kühlborn, Jonas
name: Tchuenguem, Roland T.
name: Teponno, Rémy Bertrand
name: Dzoyem, Jean Paul
name: Opatz, Till
name: Tapondjou, Léon Azefack
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: A new triterpenoid saponin (Mimonoside D: 3-O-α-L-arabinopyranosyl-3β-hydroxyolean-12-en-28-oic acid 28-O-β-D-xylopyranosyl-(1→2)-β-D- glucopyranoside ester (1)) was isolated from the aerial parts of Mimosa diplotricha Sauvalle together with nine known compounds: 7,4′-dihydroxyflavone (2), kaempferol (3), lupeol (4), betulinic acid (5), β-sitosterol (6), β-sitosterol-3-O-β-D-glucopyranoside (7), lutein (8), 5,2′-dihydroxy-7,4′,5′-trimethoxyflavone (9) and vitexin (10). Their structures were elucidated on the basis of spectroscopic (1 D and 2 D nuclear magnetic resonance) and high-resolution mass spectrometric data as well as by comparison of their spectral data with those of related compounds. Compounds 2, 7 and 8 had already been isolated from M. diplotricha, while compounds 3, 4, 5 and 6 have been isolated from other Mimosa species. Compound 2 moderately inhibited Proteus mirabilis (MIC = 32 µg/mL), weakly inhibited Pseudomonas aeruginosa (MIC = 64 µg/mL) and very weakly inhibited Staphylococcus aureus (MIC = 128 µg/mL) and Enterococus faecalis (MIC = 128 µg/mL).
Registry of [Open] Scientometric Data Sources – Technische Evaluierung von Offenen Datenquellen
Creators: name: Lilienthal, Svantje
name: Fraumann, Grischa
name: Hauschke, Christian
Publisher: name: Zenodo
Year: 2019
Subjects: scientometrics
open science

description: Offene Datenplattformen sind Grundlage für Open Science. Frei zugängliche Ergebnisse wissenschaflicher Forschung ermöglichen Nachprüfung und Nachnutzbarkeit – meistens ohne große Einschränkungen. Für die Nachnutzung der Daten aus offenen Datenplattformen sind viele Szenarien denkbar. Im BMBF-Projekt ROSI (Referenzimplementierung für Offene Szientometrische Informationen) werden offene, frei lizenzierte Datenquellen genutzt, um automatisiert szientrometrische Informationen zu generieren. Das hierbei entstandene Verzeichnis offener Datenquellen soll mit der Community geteilt und auch von ihr ergänzt werden. Hierfür wird das genutzte Metadatenschema und erste Ergebnisse der technischen Evaluierung vorgestellt.
Genome wide identification of mungbean (Vigna radiata [L.] R. Wilczek) Late Embryogenesis Abundant (LEA) protein gene family
Creators: name: K., Likhith Rampura
name: Alagarasan, Ganesh
name: Muthurajan, Raveendran
name: Parasuraman, Boominathan
name: Subramanian, Rajesh
Publisher: name: Brill Online
Year: 2021
Subjects: subject: 60299 Ecology not elsewhere classified
subject: FOS: Biological sciences

description: Mungbean (Vigna radiata L. Wilczek) an important legume crop with valuable nutritional and health benefits is severely affected by drought conditions. Desiccation tolerance is a capacity of seeds to survive and maintain physiological activities during storage and stress conditions. LEA proteins are group of stress associated proteins that help the plants survive water deficit stress. Here we have performed genome-wide analysis of mungbean LEA (VrLEA) genes, and also insilico physical/functional characterization. Gene-positioning showed that 307 VrLEAs are present in all the eleven chromosomes, but are unevenly distributed.Upstream promoter sequence analysis of LEA genes revealed the occurrence of MYB transcription factor (TF)in higher number compared to other TFs i.e., bZIP, AP2, WRKY, NAC and bHLH.Further, we downstreamed our analysis to fewer VrLEAs, based on drought responsive data. The VrLEAs obtained from the earlier experimental data were examined for its organelle localization and found that they are intracellular functional proteins.
A cocycle on the group of symplectic diffeomorphisms
Creators: name: Gal, Swiatoslaw R.
name: Kedra, Jarek
Publisher: name: arXiv
Year: 2008
Subjects: subject: Symplectic Geometry (math.SG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 57S25, 20F69

description: We define a cocycle on the group of symplectic diffeomorphisms of a symplectic manifold and investigate its properties. The main applications are concerned with symplectic actions of discrete groups. For example, we give an alternative proof of the Polterovich theorem about the distortion of cyclic subgroups in finitely generated groups of Hamiltonian diffeomorphisms.
description: 19 pages, no figures, corrected version
Energy partition in a confined flare with an extreme-ultraviolet late phase
Creators: name: Zhang, Q. M.
name: Cheng, J. X.
name: Dai, Y.
name: Tam, K. V.
name: Xu, A. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper, we reanalyze the M1.2 confined flare with a large extreme-ultraviolet (EUV) late phase on 2011 September 9, focusing on its energy partition. The radiation ($\sim$5.4$\times$10$^{30}$ erg) in 1$-$70 Å is nearly eleven times larger than the radiation in 70$-$370 Å, and is nearly 180 times larger than the radiation in 1$-$8 Å. The peak thermal energy of the post-flare loops is estimated to be (1.7$-$1.8)$\times$10$^{30}$ erg based on a simplified schematic cartoon. Based on previous results of Enthalpy-Based Thermal Evolution of Loops (EBTEL) simulation, the energy inputs in the main flaring loops and late-phase loops are (1.5$-$3.8)$\times$10$^{29}$ erg and 7.7$\times$10$^{29}$ erg, respectively. The nonthermal energy ((1.7$-$2.2)$\times$10$^{30}$ erg) of the flare-accelerated electrons is comparable to the peak thermal energy and is sufficient to provide the energy input of the main flaring loops and late-phase loops. The magnetic free energy (9.1$\times$10$^{31}$ erg) before flare is large enough to provide the heating requirement and radiation, indicating that the magnetic free energy is adequate to power the flare.
description: 7 pages, 7 figures, accepted for publication in A&A, comments are welcome
Finite Temperature Behaviour of O'KKLT Model
Creators: name: Anguelova, Lilia
name: Calo, Vincenzo
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We summarize our work on the O'Raifeartaigh uplifted KKLT model at finite temperature. We study the system for parameter values for which the zero temperature potential for the volume modulus has a dS minimum. The temperature-dependent part of the effective potential has a runaway behaviour for one exponent in the superpotential, whereas it can have local minima at finite field vevs for two exponents in the superpotential. However, it turns out that, despite the presence of those minima, the zero temperature dS vacuum is not destabilized by thermal corrections within the whole range of validity of our approximations.
description: 10 pages, contribution to the proceedings of the 3rd RTN workshop Valencia'07
MMT Extremely Metal Poor Galaxy Survey I. An Efficient Technique to Identify Metal Poor Galaxies
Creators: name: Brown, Warren R.
name: Kewley, Lisa J.
name: Geller, Margaret J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We demonstrate a successful strategy for identifying extremely metal poor galaxies. Our preliminary survey of 24 candidates contains 10 metal poor galaxies of which 4 have 12+log(O/H)<7.65, some of the lowest metallicity blue compact galaxies known to date. Interestingly, our sample of metal poor galaxies have systematically lower metallicity for their luminosity than comparable samples of blue compact galaxies, dIrrs, and normal star-forming galaxies. Our metal poor galaxies share very similar properties, however, with the host galaxies of nearby long-duration gamma-ray bursts (GRBs), including similar metallicity, stellar ages, and star formation rates. We use Hβto measure the number of OB stars present in our galaxies and estimate a core-collapse supernova rate of ~10^-3 yr^-1. A larger sample of metal poor galaxies may provide new clues into the environment where GRBs form and may provide a list of potential GRB hosts.
description: Accepted to AJ, 8 pages using emulateapj
Quantum phonon transport of molecular junctions amide-linked with carbon nanotubes: a first-principle study
Creators: name: Lü, J. T.
name: Wang, Jian-Sheng
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Quantum phonon transport through benzene and alkane chains amide-linked with single wall carbon nanotubes (SWCNTs) is studied within the level of density functional theory. The force constant matrices are obtained from standard quantum chemistry software. The phonon transmission and thermal conductance are from the nonequilibrium Green's function and the mode-matching method. We find that the ballistic thermal conductance is not sensitive to the compression or stretching of the molecular junction. The terminating groups of the SWCNTs at the cutting edges only influence the thermal conductance quantitatively. The conductance of the benzene and alkane chains shows large difference. Analysis of the transmission spectrum shows that (i) the low temperature thermal conductance is mainly contributed by the SWCNT transverse acoustic modes, (ii) the degenerate phonon modes show different transmission probability due to the presence of molecular junction, (iii) the SWCNT twisting mode can hardly be transmitted by the alkane chain. As a result, the ballistic thermal conductance of alkane chains is larger than that of benzene chains below 38 K, while it is smaller at higher temperature.
description: 5 pages, 5 figures
Muon spin rotation measurements of the superfluid density in fresh and aged superconducting PuCoGa$_5$
Creators: name: Ohishi, K.
name: Heffner, R. H.
name: Morris, G. D.
name: Bauer, E. D.
name: Graf, M. J.
name: Zhu, J. -X.
name: Morales, L. A.
name: Sarrao, J. L.
name: Fluss, M. J.
name: MacLaughlin, D. E.
name: Shu, L.
name: Higemoto, W.
name: Ito, T. U.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have measured the temperature dependence and magnitude of the superfluid density $ρ_{\rm s}(T)$ via the magnetic field penetration depth $λ(T)$ in PuCoGa$_5$ (nominal critical temperature $T_{c0} = 18.5$ K) using the muon spin rotation technique in order to investigate the symmetry of the order parameter, and to study the effects of aging on the superconducting properties of a radioactive material. The same single crystals were measured after 25 days ($T_c = 18.25$ K) and 400 days ($T_c = 15.0$ K) of aging at room temperature. The temperature dependence of the superfluid density is well described in both materials by a model using d-wave gap symmetry. The magnitude of the muon spin relaxation rate $σ$ in the aged sample, $σ\propto 1/λ^2\proptoρ_s/m^*$, where $m^*$ is the effective mass, is reduced by about 70% compared to fresh sample. This indicates that the scattering from self-irradiation induced defects is not in the limit of the conventional Abrikosov-Gor'kov pair-breaking theory, but rather in the limit of short coherence length (about 2 nm in PuCoGa$_5$) superconductivity.
description: 11 pages
Deutschsprachige Literatur aus Prag und den böhmischen Ländern 1900-1939. Chronologische Übersicht und Bibliographie
Creators: name: Fritz, Susanne
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2000

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 49 Nr. 3 (2000)
A Hamiltonian Mechanics Framework for Charge Particle Optics in Straight and Curved Systems
Creators: name: Kern, Felix
name: Krehl, Jonas
name: Thampi, Arsha
name: Lubk, Axel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Charged particle optics, the description of particle trajectories in the vicinity of some optical axis, describe the imaging properties of particle optics devices. Here, we present a complete and compact description of charged particle optics employing perturbative expansion of Hamiltonian mechanics. The derived framework allows the straightforward computation of transversal and longitudinal (chromatic) properties of static and dynamic optical devices with straight and curved optical axes. It furthermore gives rise to geometric integration schemes preserving the symplectic phase space structure and pertaining Lagrange invariants, which may be employed to derive analytic approximations of aberration coefficients and efficient numerical trajectory solvers.
Spin Lifetimes in Quantum Dots from Noise Measurements
Creators: name: Wabnig, J.
name: Lovett, B. W.
name: Jefferson, J. H.
name: Briggs, G. A. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a method of obtaining information about spin lifetimes in quantum dots from measurements of electrical transport. The dot is under resonant microwave irradiation and at temperatures comparable to or larger than the Zeeman energy. We find that the ratio of the spin coherence times T_{1}/T_{2} can be deduced from a measurement of current through the quantum dot as a function the applied magnetic field. We calculate the noise power spectrum of the dot current and show that a dip occurs at the Rabi frequency with a line width given by 1/T_{1}+1/T_{2}.
description: 4 Pages, 4 figures
Combinatorial and geometric methods in topology
Creators: name: Petronio, Carlo
name: Heard, Damian
name: Pervova, Ekaterina
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M50

description: Starting from the (apparently) elementary problem of deciding how many different topological spaces can be obtained by gluing together in pairs the faces of an octahedron, we will describe the central role played by hyperbolic geometry within three-dimensional topology. We will also point out the striking difference with the two-dimensional case, and we will review some of the results of the combinatorial and computational approach to three-manifolds developed by different mathematicians over the last several years.
description: This expository paper is the text of a conference given by the author to a broad audience of mathematicians. An upcoming article will contain more detailed proofs and an accurate description of the hyperbolic and non-hyperbolic orientable manifolds obtained by gluing together in pairs the faces of the octahedron. Appendix by Damian Heard and Ekaterina Pervova
Electron Transport Chain and Uncoupling
Creators: name: Monfared, Mona
Publisher: name: QUBES Educational Resources
Year: 2025

description: Students will explain the chemiosmotic theory in their own words and describe how electron movement in the Respiratory Chain is linked to ATP synthesis. They will then explore the function of a metabolic uncoupler like 2,4-Dinitrophenol and consider a case study where the subject of the story considers taking this dangerous chemical as a “quick fix” for weight loss.
Comparative study of macroscopic quantum tunneling in Bi_2Sr_2CaCu_2O_y intrinsic Josephson junctions with different device structures
Creators: name: Ota, K.
name: Hamada, K.
name: Takemura, R.
name: Ohmaki, M.
name: Machi, T.
name: Tanabe, K.
name: Suzuki, M.
name: Maeda, A.
name: Kitano, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigated macroscopic quantum tunneling (MQT) of Bi$_2$Sr$_2$CaCu$_2$O$_y$ intrinsic Josephson junctions (IJJs) with two device structures. One is a nanometer-thick small mesa structure with only two or three IJJs and the other is a stack of a few hundreds of IJJs on a narrow bridge structure. Experimental results of switching current distribution for the first switching events from zero-voltage state showed a good agreement with the conventional theory for a single Josephson junction, indicating that a crossover temperature from thermal activation to MQT regime for the former device structure was as high as that for the latter device structure. Together with the observation of multiphoton transitions between quantized energy levels in MQT regime, these results strongly suggest that the observed MQT behavior is intrinsic to a single IJJ in high-$T_c$ cuprates, independent of device structures. The switching current distribution for the second switching events from the first resistive state, which were carefully distinguished from the first switchings, was also compared between two device structures. In spite of the difference in the heat transfer environment, the second switching events for both devices were found to show a similar temperature-independent behavior up to a much higher temperature than the crossover temperature for the first switching. We argue that it cannot be explained in terms of the self-heating owing to dissipative currents after the first switching. As possible candidates, the MQT process for the second switching and the effective increase of electronic temperature due to quasiparticle injection are discussed.
description: 10pages, 7figures, submitted to Phys. Rev. B
On a redundancy in the parity-violating 2-nucleon contact Lagrangian
Creators: name: Girlanda, Luca
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: It is shown that the number of independent operators in the nucleon-nucleon parity-violating contact Lagrangian at the leading order in the low-momentum expansion, can be reduced to five, by using Fierz rearrangements of the nucleon fields.
description: 4 pages, one reference added, matches the journal version
David Caute, The Dancer Defects. The Struggle for Cultural Supremacy During the Cold War
Creators: name: Behrends, Jan C.
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2004

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 53 Nr. 3 (2004)
Paul Feuchte, Andreas Feuchte, Die Komponisten Eduard Franck und Richard Franck. Leben und Werk
Creators: name: Unverricht, Hubert
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1996

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 45 Nr. 2 (1996)
Operators on superspaces and generalizations of the Gelfand-Kolmogorov theorem
Creators: name: Khudaverdian, H. M.
name: Voronov, Th. Th.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Rings and Algebras (math.RA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: (Write-up of a talk at the Bialowieza meeting, July 2007.) Gelfand and Kolmogorov in 1939 proved that a compact Hausdorff topological space $X$ can be canonically embedded into the infinite-dimensional vector space $C(X)^* $, the dual space of the algebra of continuous functions $C(X)$ as an "algebraic variety" specified by an infinite system of quadratic equations. Buchstaber and Rees have recently extended this to all symmetric powers $\Sym^n(X)$ using their notion of the Frobenius $n$-homomorphisms. We give a simplification and a further extension of this theory, which is based, rather unexpectedly, on results from super linear lgebra.
description: LaTeX, 7 pages. Based on a talk at the Bialowieza meeting, July 2007
Topological susceptibility in SU(2) Yang-Mills theory in the Hamiltonian approach in Coulomb gauge
Creators: name: Campagnari, Davide R.
name: Reinhardt, Hugo
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The topological susceptibility is calculated within the Hamiltonian approach to Yang-Mills theory in Coulomb gauge, using the vacuum wave functional previously determined by a variational solution of the Yang-Mills Schroedinger equation. The numerical result agrees qualitatively with the predictions of lattice simulations.
description: 9 pages, 4 figures
MAST-SEY: MAterial Simulation Toolkit for Secondary Electron Yield. A monte carlo approach to secondary electron emission based on complex dielectric functions
Creators: name: Polak, Maciej P.
name: Morgan, Dane
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: MAST-SEY is an open-source Monte Carlo code capable of calculating secondary electron emission using input data generated entirely from first principle (density functional theory) calculations. It utilizes the complex dielectric function and Penn's theory for inelastic scattering processes, and relativistic Schrödinger theory by means of a partial-wave expansion method to govern elastic scattering. It allows the user to include explicitly calculated momentum dependence of the dielectric function, as well as to utilize first-principle density of states in secondary electron generation, which provides a more complete description of the underlying physics. In this paper we thoroughly describe the theoretical aspects of the modeling, as used in the code, and present sample results obtained for copper and aluminum.
Literature review methods and supplemental results figures from Trait-based approaches to global change ecology: moving from description to prediction
Creators: name: Green, Stephanie J.
name: Brookson, Cole B.
name: Hardy, Natasha A.
name: Crowder, Larry B.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Trait-based approaches are increasingly recognized as a tool for understanding ecosystem re-assembly and function under intensifying global change. Here we synthesize trait-based research globally (N = 865 studies) to examine the contexts in which traits may be used for global change prediction. We find that exponential growth in the field over the last decade remains dominated by descriptive studies of terrestrial plant morphology, highlighting significant opportunities to expand traits-based thinking across systems and taxa. Very few studies (less than 3%) focus on predicting ecological effects of global change, mostly in the past 5 years and via singular traits that mediate abiotic limits on species distribution. Beyond organism size (the most examined trait), we identify greater than 2500 other morphological, physiological, behavioural and life-history traits known to mediate environmental filters of species' range and abundance as candidates for future predictive global change work. Though uncommon, spatially explicit process models—which mechanistically link traits to changes in organism distributions and abundance—are among the most promising frameworks for holistic global change prediction at scales relevant for conservation decision-making. Further progress toward traits-based forecasting requires addressing persistent barriers including (1) matching scales of multivariate trait and environment data to focal processes disrupted by global change, and (2) propagating variation in trait and environmental parameters throughout process model functions using simulation.