cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Botanic Gardens Micropropagation News, Volume 1, Issue 4.
Creators: name: Royal Botanic Gardens, Kew
Publisher: name: Royal Botanic Gardens, Kew, in association with Botanic Gardens Conservation Secretariat.
Year: 1991
Subjects: In vitro culture
In vitro storage
Micropropagation
South Australia
Spain
Droseraceae
Tissue culture laboratories
In vitro propagation
Phebalium

description: Contents: [Editorial] / Michael F. Fay. Micropropagation and in vitro germplasm storage of Droseraceae / K. Kukułczanka. Micropropagation of endangered Phelabium (Rutaceae) species in South Australia / M. Jusaitis. In vitro storage of three endangered species from S.E. Spain / J.M. Iriondo and C. Péres. Labs working on tissue culture of rare species – a list. Recent references.
description: Kew, UK
Die Korrektur des Trockensubstanzgehaltes von Grassilagen als Substrat für Biogasanlagen
Creators: name: Weißbach, Friedrich
name: Strubelt, Cornelia
Publisher: name: LANDTECHNIK
Year: 2008

description: Bei der Bestimmung des TS-Gehaltes von Silagen gehen flüchtige organische Substanzen (Gärsäuren und Alkohole) verloren. Deshalb muss der auf übliche Weise im Trockenschrank ermittelte TS-Gehalt nachträglich korrigiert werden. Geschieht das nicht oder nicht genau genug, so werden sowohl der Nährstoffgehalt als auch die spezifische Gasausbeute falsch berechnet und dadurch Versuchsergebnisse falsch gedeutet [2, 3]. Eine für die Auswertung von Fermentationsversuchen hinreichend genaue Erfassung der flüchtigen Substanzen ist nur anhand der vollständigen Gärproduktanalyse der Silagen möglich. Nach einer Korrekturgleichung für Maissilagen [6] wird hier für Grassilagen eine aktualisierte und substratspezifische Gleichung zur Korrektur des TS-Gehaltes vorgeschlagen.
description: LANDTECHNIK, Bd. 63 Nr. 4 (2008)
Primordial Spikes from Wrapped Brane Inflation
Creators: name: Kobayashi, Takeshi
name: Yokoyama, Jun'ichi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Cosmic inflation driven by branes wrapping the extra dimensions involves Kaluza-Klein (KK) degrees of freedom in addition to the zero-mode position of the brane which plays the role of the inflaton. As the wrapped brane passes by localized sources or features along its inflationary trajectory in the extra dimensional space, the KK modes along the wrapped direction are excited and start to oscillate during inflation. We show that the oscillating KK modes induce parametric resonance for the curvature perturbations, generating sharp signals in the perturbation spectrum. The effective four dimensional picture is a theory where the inflaton couples to the heavy KK modes. The Nambu-Goto action of the brane sources couplings between the inflaton kinetic terms and the KK modes, which trigger significant resonant amplification of the curvature perturbations. We find that the strong resonant effects are localized to narrow wave number ranges, producing spikes in the perturbation spectrum. Investigation of such resonant signals opens up the possibility of probing the extra dimensional space through cosmological observations.
description: 45 pages, 8 figures, v2: published in JCAP, v3: fixed typos in appendix
Data aggregation
Creators: name: Vlachou, Vasiliki
name: Babagiannou, Rosanna
name: Panunzi, Simona
name: Besson, Philippe
name: Luis Gato, Jose
name: Trif, Alexandra
name: Panzariuc, Gabriela
name: Gliga, Razvan
name: Ogrezeanu, Andrei
name: Moustakidis, Serafeim
name: Karlsson, Patrik
name: Siouras, Athanasios
name: Mando, Gianluca
name: Kalogirou, Kostas
name: Angelidis, Christos
name: Sklavidis, Iosif
name: Symeonidis, Ioannis
name: Benekos, Ioannis
name: Karma, Sofia
Publisher: name: Zenodo
Year: 2020
Subjects: Search and Rescue project, Data aggregation, Analysis and Decision Support, First responders, Knowledge management systems, Emergency Management, Situation Awareness

description: This deliverable provides information about the retrieval of data from resources relevant to past large-scale disasters and the aggregation of data coming from heterogeneous sources, such as smart glasses, smart helmets, drones, and sensors. As far as the past disasters are concerned, 23 relevant resources have been identified, thoroughly analysed, and evaluated according to specific criteria. Those resources concern almost all types of disasters and provide information mainly about the details of each disaster and the caused casualties. However, a few resources also include data about the needs, the used equipment, and the number of responders that were required for the search & rescue activities during the respective disaster. The examination of the identified resources revealed that 10 of the 23 resources have the potential to provide invaluable information that can be proved to be handy during crisis preparedness and Search & Rescue activities. Regarding the aggregation of data coming from heterogeneous sources, the Data Fusion and Mediation System will be responsible for gathering all the data and storing them to a Cloud Server. All the sources, e.g., drones, will send their data to the Data Fusion and Mediation System through various ways, such as Wi-Fi, Bluetooth, and Restful APIs.
Inhaltsverzeichnis
Creators: name: Redaktion, Die
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: -
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 21 (1989): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Thermodynamics of the O(3) model in 1+1 dimensions: lattice vs. analytical results
Creators: name: Seel, Elina
name: Smith, Dominik
name: Lottini, Stefano
name: Giacosa, Francesco
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A detailed study of the thermodynamics of the O(N=3) model in 1+1 dimensions is presented, employing a two-particle-irreducible resummation prescription as well as fully nonperturbative finite-temperature lattice simulations. The analytical results are computed using the Cornwall-Jackiw-Tomboulis (CJT) formalism and the auxiliary field method to one- and to two-loop order. The lattice results are obtained through Monte Carlo simulation for various lattice spacings. The analytical and lattice results for pressure, trace anomaly, and energy density, resembling closely those of four-dimensional Yang-Mills theories, are compared with each other. We find that to one-loop order there is a good correspondence between the CJT formalism and the lattice study for low temperatures. However, at high T the two-loop calculation fares better, correcting for the overestimation from the former approximation.
description: 29 pages, 7 figures; version accepted for publication in Journal of High-Energy Physics (JHEP)
Schillers Wilhelm Teil und dessen Entstehungsgeschichte
Creators: name: Wang, Min
Publisher: name: Literaturstraße. Chinesisch-deutsche Zeitschrift für Sprach- und Literaturwissenschaft
Year: 2017

description: -
description: Literaturstraße. Chinesisch-deutsche Zeitschrift für Sprach- und Literaturwissenschaft, Bd. 7 (2006)
Barrels and Wines, Old and New: Mnemohistory and Microhistory
Creators: name: Ginzburg, Carlo
Publisher: name: Aegyptiaca. Journal of the History of Reception of Ancient Egypt
Year: 2019

description: Aegyptiaca. Journal of the History of Reception of Ancient Egypt, Nr. 4 (2019): Aegyptiaca. Journal of the History of Reception of Ancient Egypt
On the Use of Multipole Expansion in Time Evolution of Non-linear Dynamical Systems and Some Surprises Related to Superradiance
Creators: name: Csizmadia, Peter
name: Laszlo, Andras
name: Racz, Istvan
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A new numerical method is introduced to study the problem of time evolution of generic non-linear dynamical systems in four-dimensional spacetimes. It is assumed that the time level surfaces are foliated by a one-parameter family of codimension two compact surfaces with no boundary and which are conformal to a Riemannian manifold C. The method is based on the use of a multipole expansion determined uniquely by the induced metric structure on C. The approach is fully spectral in the angular directions. The dynamics in the complementary 1+1 Lorentzian spacetime is followed by making use of a fourth order finite differencing scheme with adaptive mesh refinement. In checking the reliability of the introduced new method the evolution of a massless scalar field on a fixed Kerr spacetime is investigated. In particular, the angular distribution of the evolving field in to be superradiant scattering is studied. The primary aim was to check the validity of some of the recent arguments claiming that the Penrose process, or its field theoretical correspondence---superradiance---does play crucial role in jet formation in black hole spacetimes while matter accretes onto the central object. Our findings appear to be on contrary to these claims as the angular dependence of a to be superradiant scattering of a massless scalar field does not show any preference of the axis of rotation. In addition, the process of superradiance, in case of a massless scalar field, was also investigated. On contrary to the general expectations no energy extraction from black hole was found even though the incident wave packets was fine tuned to be maximally superradiant. Instead of energy extraction the to be superradiant part of the incident wave packet fails to reach the ergoregion rather it suffers a total reflection which appears to be a new phenomenon.
description: 49 pages, 11 figures
Une lecture archéologique, des textes à la matérialité des espaces de dévotion à Saint-Médard de Soissons (Aisne)
Creators: name: Ferraiuolo, Daniele
Publisher: name: Zenodo
Year: 2023

description: Abstract of the paper presented at the conference "Archéologie des établissements monastiques médiévaux et modernes des Hauts-de-France (VIIe-XVIIIe siècles) : bilan et perspectives", Université d'Artois, june 3-4, 2021
Urbanization levels are associated with the start of the dawn chorus in vermilion flycatchers in Colombia
Creators: name: Sánchez-González, Katherin
name: Aguirre-Obando, Oscar A.
name: Ríos-Chelén, Alejandro A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Increased urbanization leads to the modification of animal behavior, including the start of the dawn chorus in birds. The beginning of the dawn chorus has been studied in relation to the level of urban noise and nocturnal artificial light in oscine birds, with few studies in suboscines. We evaluated a possible relationship between the start of the dawn chorus and different urbanization levels in a suboscine, the vermilion flycatcher (Pyrocephalus rubinus), in seven locations in the city of Armenia (Colombia). We categorized the urbanization level in each location according to its percentage of built structures, into low and high levels. Observations were made during pre-dawn, starting at 00:00 hr. During each visit we recorded maximum noise levels, artificial light at night (ALAN) and time of first song. Males inhabiting the high urbanization locations started the dawn chorus on average 101 min before sunrise, while males in low urbanization levels did so on average 38 min before. Neither noise level nor ALAN explained this difference. We discuss that, for suboscines, another urban-related factor (ambient temperature) may be a key factor driving the onset of dawn chorus.
Organic magnetoresistance near saturation: mesoscopic effects in small devices
Creators: name: Roundy, R. C.
name: Vardeny, Z. V.
name: Raikh, M. E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: In organic light emitting diodes with small area the current may be dominated by a finite number, N of sites in which the electron-hole recombination occurs. As a result, averaging over the hyperfine magnetic fields, b_h, that are generated in these sites by the environment nuclei is incomplete. This creates a random (mesoscopic) current component, ΔI(B), at field B having relative magnitude ~ N^(-1/2). To quantify the statistical properties of ΔI(B) we calculate the correlator K(B, ΔB)= for parallel and perpendicular orientations of ΔB. We demonstrate that mesoscopic fluctuations develop at fields B>>b_h, where the average magnetoresistance is near saturation. These fluctuations originate from the slow beating between S and T_0 states of the recombining e-h spin pair-partners. We identify the most relevant processes responsible for the current fluctuations as due to anomalously slow beatings that develop in sparse e-h polaron pairs at sites for which the b_h projections on the external field direction almost coincide.
description: 5 pages, 3 figures
Suppression of bottomonia states in finite size quark gluon plasma in PbPb collisions at Large Hadron Collider
Creators: name: Abdulsalam, A.
name: Shukla, Prashant
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The bottomonium states due to their varying binding energies dissolve at different temperatures and thus their nuclear modification factors and relative yields have potential to map the properties of Quark Gluon Plasma (QGP). We estimate the suppression of bottomonia states due to color screening in an expanding QGP of finite lifetime and size with the conditions relevant for PbPb collisions at LHC. The properties of $Υ$ states and recent results on their dissociation temperatures have been used as ingredient in the study. The nuclear modification factors and the ratios of yields of $Υ$ states are then obtained as a function of transverse momentum and centrality. We compare our theoretical calculations with the bottomonia yields measured with CMS in PbPb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV. The model calculations explain the data very well.
description: 14 pages, 5 figures, To appear in Int. j. of Mod. Phys
Do stochastic inhomogeneities affect dark-energy precision measurements?
Creators: name: Ben-Dayan, Ido
name: Gasperini, Maurizio
name: Marozzi, Giovanni
name: Nugier, Fabien
name: Veneziano, Gabriele
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The effect of a stochastic background of cosmological perturbations on the luminosity-redshift relation is computed to second order through a recently proposed covariant and gauge-invariant light-cone averaging procedure. The resulting expressions are free from both ultraviolet and infrared divergences, implying that such perturbations cannot mimic a sizable fraction of dark energy. Different averages are estimated and depend on the particular function of the luminosity distance being averaged. The energy flux, being minimally affected by perturbations at large z, is proposed as the best choice for precision estimates of dark-energy parameters. Nonetheless, its irreducible (stochastic) variance induces statistical errors on Ω_Λ(z) typically lying in the few-percent range.
description: 5 pages, 3 figures. Comments and references added. Typos corrected. Version accepted for publication in Phys. Rev. Lett
Gravitational lenses in the dark Universe
Creators: name: Freitas, R. C.
name: Gonçalves, S. V. B.
name: Oliveira, A. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss how different cosmological models of the Universe affect the probability that a background source has multiple images related by an angular distance $θ_E$ of the line of sight, \textit{i. e.}, the optical depth of gravitational lensing. We examine some cosmological models for different values of the density parameter $Ω_i$: i) the cold dark matter model, ii) the $Λ$CDM model, iii) the Bose-Einstein condensate dark matter model, iv) the Chaplygin gas model, v) the viscous fluid cosmological model and vi) the holographic dark energy model. We note that the dependence of the energy-matter content of the universe profoundly alters the frequency of multiple quasar image.
description: 23 pages, 10 figures, accepted for publication in Astrophysics and Space Science
NFFA-Europe Pilot - D11.6 - Introducing near-ambient pressure measurements in conventional STM microscopes
Creators: name: Panighel, Mirco
name: Patera, Laerte
name: Africh, Cristina
name: Patil, Sumati
Publisher: name: Zenodo
Year: 2023

description: Upgrade of an existing UHV commercial STM setup to perform measurements in near-ambient pressure conditions.
description: WP11 - Real-time observation and control in microscopy and spectroscopy of nano-objects
Two channel orbital Kondo effect in quantum dot with SO(n) symmetry
Creators: name: Kuzmenko, T.
name: Kikoin, K.
name: Avishai, Y.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A scenario for the formation of symmetry protected non-Fermi-liquid (NFL) Kondo effect (KE) with spin variable enumerating Kondo channels is suggested and worked out. In doubly occupied symmetric triple quantum dot within parallel geometry, the NFL low-energy regime arises provided the device possesses both source-drain and left-right parity. Kondo screening follows a multistage renormalization group mechanism: reduction of the energy scale is accompanied by the change of the relevant symmetry group from SO(8) to SO(5). At low energy, three phases compete: 1) under-screening spin triplet (conventional) KE; 2) spin singlet potential scattering; 3) NFL phase where the roles of spin and orbital degrees of freedom are swapped.
description: 9 two column pages, 4 .eps figures. Phys. Rev. B (published version)
The emerging complexity of open data dynamics: lessons from human evolutionary Genetics & Genomics
Creators: name: DESTRO BISOL, GIOVANNI
Publisher: name: Zenodo
Year: 2015
Subjects: subject: Open science
subject: Open data
subject: Anthropology
subject: FOS: Sociology

description: In this lecture, I present an overview of data sharing dynamics with a focus on Human Evolutionary Anthropology. I will first discuss three different views on Open data: "Share or die", "I just don'care" and "Tension between secrecy and openness". Then, I will talk about the complexity surrounding open data dynamics in a relatively small research field, Human evolutionary Genetic and Genomics. Thereafter, I will show some results of empirical studies on the data sharing behavior in human genetics and other scientific disciplines, and describe two cases of good practice (Forensic Genetics and Paleogenetics). Finally, I will discuss the implications of arguments and evidence shown here for the future initiatives of the Associazione Italiana per la Scienza Aperta.
Effect of short-range interactions on the quantum critical behavior of spinless fermions on the honeycomb lattice
Creators: name: Mesterházy, D.
name: Berges, J.
name: von Smekal, L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a functional renormalization group investigation of an Euclidean three-dimensional matrix Yukawa model with U(N) symmetry, which describes N = 2 Weyl fermions that effectively interact via a short-range repulsive interaction. This system relates to an effective low-energy theory of spinless electrons on the honeycomb lattice and can be seen as a simple model for suspended graphene. We find a continuous phase transition characterized by large anomalous dimensions for the fermions and composite degrees of freedom. The critical exponents define a new universality class distinct from Gross-Neveu type models, typically considered in this context.
description: 19 pages, 3 figures; revised and extended version accepted for publication in PRB
Symbolic methods for the evaluation of sum rules of Bessel functions
Creators: name: Babusci, D.
name: Dattoli, G.
name: Gorska, K.
name: Penson, K. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The use of the umbral formalism allows a significant simplification of the derivation of sum rules involving products of special functions and polynomials. We rederive in this way known sum rules and addition theorems for Bessel functions. Furthermore, we obtain a set of new closed form sum rules involving various special polynomials and Bessel functions. The examples we consider are relevant for applications ranging from plasma physics to quantum optics.
description: J. Math. Phys. vol. 54, 073501 (2013), 6 pages
Thermally-Assisted Spin-Transfer Torque Magnetization Reversal of Uniaxial Nanomagnets in Energy Space
Creators: name: Pinna, D.
name: Kent, A. D.
name: Stein, D. L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The asymptotic behavior of switching time as a function of current for a uniaxial macrospin under the effects of both spin-torque and thermal noise is explored analytically by focusing on its diffusive energy space dynamics. The scaling dependence ($I\rightarrow 0$, $
description: arXiv admin note: substantial text overlap with arXiv:1205.6509
Eine diakonische Gemeinde macht ein Sabbatjahr
Creators: name: Barth, Florian
name: Bauer, Annemarie
Publisher: name: DWI-Jahrbuch – Diakoniewissenschaft in Forschung und Lehre
Year: 2019

description: .
description: DWI-Jahrbuch – Diakoniewissenschaft in Forschung und Lehre, Bd. 46: (2018/2019): Diakoniewissenschaft in Forschung und Lehre
Testing Minimal Universal Extra Dimensions Using Higgs Boson Searches at the LHC
Creators: name: Belanger, Genevieve
name: Belyaev, Alexander
name: Brown, Matthew
name: Kakizaki, Mitsuru
name: Pukhov, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Large Hadron Collider (LHC) searches for the SM Higgs boson provide a powerful limit on models involving Universal Extra Dimensions (UED) where the Higgs production is enhanced. We have evaluated all one-loop diagrams for Higgs production from gluon fusion and decay to two photons within "minimal" UED (mUED), independently confirming previous results, and we have evaluated enhancement factors for Higgs boson production and decay over the mUED parameter space. Using these we have derived limits on the parameter space, combining data from both ATLAS and CMS collaborations for the most recent 7 TeV and 8 TeV LHC data. We have performed a rigorous statistical combination of several Higgs boson search channels which is important because mUED signatures from the Higgs boson are not universally enhanced. We have found that 1/R < 500 GeV is excluded at 95% CL, while for larger 1/R only a very narrow (\pm1-4 GeV) mass window around m_h = 125 GeV and another window (up to 2 GeV wide for 1/R > 1000 GeV) around m_h = 118 GeV are left. The latter is likely to be excluded as more data becomes available whereas the region around 125 GeV is where the recently discovered Higgs-like particle was observed and therefore where the exclusion limit is weaker. It is worth stressing that mUED predicts an enhancement for all channels for Higgs production by gluon fusion and decay while the vector boson fusion process WW/ZZ -> h -> AA is generically suppressed and WW/ZZ -> h -> WW*/ZZ* is standard. Therefore, as more 8 TeV LHC data becomes available, the information on individual Higgs boson production and decay processes provided by the CMS and ATLAS experiments can be effectively used to favour mUED or exclude it further.
description: 39 pages, 6 figures
Pilotprojekt: Identität und Jakobsweg
Creators: name: Schwenkschuster, Jana
Publisher: name: DWI-Jahrbuch – Diakoniewissenschaft in Forschung und Lehre
Year: 2019

description: DWI-Jahrbuch – Diakoniewissenschaft in Forschung und Lehre, Bd. 46: (2018/2019): Diakoniewissenschaft in Forschung und Lehre
Geschichtswissenschaft und »performative turn«. Ritual, Inszenierung und Performanz vom Mittelalter bis zur Neuzeit, publ. par J. Martschukat, S. Patzold, 2003
Creators: name: Moeglin, Jean-Marie
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 33 Nr. 1 (2006)
Village et ville au Moyen Âge: les dynamiques morphologiques, 2 Bde., hg. von B. Gauthiez, E. Zadora-Rio, H. Galinié, 2003
Creators: name: Baeriswyl, Armand
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 33 Nr. 1 (2006)
Divisors on graphs, Connected flags, and Syzygies
Creators: name: Mohammadi, Fatemeh
name: Shokrieh, Farbod
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 05C40, 13D02, 05E40, 13A02, 13P10

description: We study the binomial and monomial ideals arising from linear equivalence of divisors on graphs from the point of view of Gröbner theory. We give an explicit description of a minimal Gröbner bases for each higher syzygy module. In each case the given minimal Gröbner bases is also a minimal generating set. The Betti numbers of the binomial ideal and its natural initial ideal coincide and they correspond to the number of 'connected flags' in the graph. In particular the Betti numbers are independent of the characteristic of the base field. For complete graphs the problem was previously studied by Postnikov and Shapiro and by Manjunath and Sturmfels. The case of a general graph was stated as an open problem.
description: to appear in International Mathematics Research Notices (IMRN)
An evidence for indirect detection of dark matter from galaxy clusters in Fermi-LAT data
Creators: name: Hektor, Andi
name: Raidal, Martti
name: Tempel, Elmo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We search for spectral features in Fermi-LAT gamma-rays coming from regions corresponding to eighteen brightest nearby galaxy clusters determined by the magnitude of their signal line-of-site integrals. We observe a double peak-like excess over the diffuse power-law background at photon energies 110 GeV and 130 GeV with the global statistical significance up to 3.6σ, confirming independently earlier claims of the same excess from Galactic centre. Interpreting this result as a signal of dark matter annihilations to two monochromatic photon channels in galaxy cluster haloes, and fixing the annihilation cross section from the Galactic centre data, we determine the annihilation boost factor due to dark matter subhaloes from data. Our results contribute to discrimination of the dark matter annihilations from astrophysical processes and from systematic detector effects as the possible explanations to the Fermi-LAT excess.
description: Double peak structure of the excess seen due to new Fermi-LAT energy resolution, in agreement with the Galactic centre data. More results available in web http://phys.hep.kbfi.ee/~andi/FermiLAT-lines/. One additional plot added to show correlation between signal and cluster brightness. Published version
Magnetic Intragap States and Mixed Parity Pairing at the Edge of Spin-Triplet Superconductors
Creators: name: Romano, Alfonso
name: Gentile, Paola
name: Noce, Canio
name: Vekhter, Ilya
name: Cuoco, Mario
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that a spontaneous magnetic moment may appear at the edge of a spin-triplet superconductor if the system allows for pairing in a subdominant channel. To unveil the microscopic mechanism behind such effect we combine numerical solution of the Bogoliubov-De Gennes equations for a tight-binding model with nearest-neighbor attraction, and the symmetry based Ginzburg-Landau approach. We find that a potential barrier modulating the electronic density near the edge of the system leads to a non-unitary superconducting state close to the boundary where spin-singlet pairing coexists with the dominant triplet superconducting order. We demonstrate that the spin polarization at the edge appears due to the inhomogeneity of the non-unitary state and originates in the lifting of the spin-degeneracy of the Andreev bound-states.
description: 5 pages, 3 figures and Supplemental material (2 pages)
NFFA-Europe Pilot - D9.2 - Integration of the first VA services into the platform
Creators: name: Aversa, Rossella
name: Panighel, Mirco
name: Recchia, Andrea
name: Chiucconi, Yuri
name: Brandino, Giuseppe Piero
name: Tsibidis, George
name: Pantazis, Yannis
name: Sfakianakis, Ioannis
name: Grassano, Davide
Publisher: name: Zenodo
Year: 2023

description: This deliverable presents the list of Virtual Access services currently integrated and provided in NEP.
description: WP9 - Virtual Access
Dynamic stabilization of a quantum many-body spin system
Creators: name: Hoang, T. M.
name: Gerving, C. S.
name: Land, B. J.
name: Anquez, M.
name: Hamley, C. D.
name: Chapman, M. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We demonstrate dynamic stabilization of an unstable strongly interacting quantum many-body system by periodic manipulation of the phase of the collective states. The experiment employs a spin-1 atomic Bose condensate initialized to an unstable (hyperbolic) fixed point of the spin-nematic phase space, where subsequent free evolution gives rise to squeezing and quantum spin mixing. To stabilize the system, periodic microwave pulses are applied that manipulate the spin-nematic many-body fluctuations and limit their growth. The range of pulse periods and phase shifts for which the condensate can be stabilized is measured and the resulting stability diagram compares well with a linear stability analysis of the problem.
description: Main text 6 pages, 4 figures; Supplement 5 pages, 1 figure
High-temperature superconductivity in the Hubbard model: Gutzwiller wave-function solution
Creators: name: Kaczmarczyk, J.
name: Spałek, J.
name: Schickling, T.
name: Buenemann, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A systematic diagrammatic expansion for Gutzwiller-wave functions (DE-GWF) is formulated and used for the description of superconducting (SC) ground state in the two-dimensional Hubbard model with electron-transfer amplitudes t (and t') between nearest (and next-nearest) neighbors. The method is numerically very efficient and allows for a detailed analysis of the phase diagram as a function of all relevant parameters (U, δ, t') and a determination of the kinetic-energy driven pairing region. SC states appear only for substantial interactions, U/t > 3, and for not too large hole doping, δ< 0.32 for t' = 0.25 t; this upper critical doping value agrees well with experiment for the cuprate high-temperature superconductors. We also obtain other important features of the SC state: (i) the SC gap at the Fermi surface resembles $d_{x^2-y^2}$-wave only around the optimal doping and the corrections to this state are shown to arise from the longer range of the pairing; (ii) the nodal Fermi velocity is almost constant as a function of doping and agrees quantitatively with the experimental results; (iii) the SC transition is driven by the kinetic-energy lowering for low doping and strong interactions.
description: 6 pages, 4 figures, to appear in Phys. Rev. B
Stellar metallicity in galaxies: a novel promising approach based on UV indices
Creators: name: Ditrani, Fabio Rosario
Publisher: name: Zenodo
Year: 2023

description: We investigated the capability to retrieve the stellar metallicity in galaxies at different S/N in the redshift range 0.3 < z < 0.7.  Our analysis is based on a rich stellar template library and simulations mimicking observed galaxy spectra for the forthcoming WEAVE-StePS project (Iovino et al. 2023).  WEAVE-StePS novelty is the availability of both ultraviolet and optical rest-frame spectral absorption-line indices.
Our main result is that including bluer spectral indices (from 3500 up to 5300A restframe) enables to obtain metallicity estimates that, even in case of lower quality spectra, are of quality as good as those obtained using the classical optical indices (4800-5300AA RF) at SNR twice as high. Indeed for WEAVE-StePS data even at S/N = 10, stellar metallicity can be derived with an accuracy better than 0.3 dex, in particular for stellar populations older than 2 Gyr (Ditrani et al. 2023).
This result is very promising for future higher-redshift surveys, also considering that the use of bluer spectral indices offers the further advantage of avoiding observed wavelength regions that are strongly affected by atmospheric contamination at intermediate redshift.
We then presented a first test case based on spectroscopic observations of a large filamentary structure at z ~ 0.73, named COSMOS Wall. This structure encompasses a comprehensive range of environments from dense clusters to adjacent voids. We presented our preliminary results on the relation between stellar metallicity and the environment.
Rare Radiative $B_{c}\rightarrow D_{s1}(2460)γ$ Transition in QCD
Creators: name: Azizi, K.
name: Ghahramani, N.
name: Olamaei, A. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the radiative $B_{c} \to D_{s1} γ$ transition in the framework of QCD sum rules. In particular, we calculate the transition form factors responsible for this decay in both weak annihilation and electromagnetic penguin channels using the quark condensate, mixed and two-gluon condensate diagrams as well as propagation of the soft quark in the electromagnetic field as non-perturbative corrections. These form factors are then used to estimate the branching ratios of the channels under consideration. The total branching ratio of the $B_{c} \to D_{s1} γ$ transition is obtained to be in order of $10^{-5}$, and the dominant contribution comes from the weak annihilation channel.
description: 24 Pages and 3 Figures
Ordinary Modular Forms and Companion Points on the Eigencurve
Creators: name: Bergdall, John
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F33, 11F80, 11F85

description: We give a new proof of a result due to Breuil and Emerton which relates the splitting behavior at p of the p-adic Galois representation attached to a p-ordinary modular form to the existence of an overconvergent p-adic companion form for f.
description: 12 pages. Final version. Changes from previous version: expanded on an argument in section 2.3 and minor correction of typos/language
Römische Steckkalender in Trier
Creators: name: Binsfeld, Wolfgang
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, 1973: Funde und Ausgrabungen im Bezirk Trier : Mitteilungen des Rheinischen Landesmuseums Trier
Das fränkische Reitergrab von Olk
Creators: name: Gollub, Siegfried
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, 1974: Funde und Ausgrabungen im Bezirk Trier : Mitteilungen des Rheinischen Landesmuseums Trier
Analyse von Leichenbränden aus dem keltisch-römischen Gräberfeld von Wederath-Belginum
Creators: name: Kunter, Manfred
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 12 (1980): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Simple microwave field imaging technique using hot atomic vapor cells
Creators: name: Böhi, Pascal
name: Treutlein, Philipp
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate a simple technique for microwave field imaging using alkali atoms in a vapor cell. The microwave field to be measured drives Rabi oscillations on atomic hyperfine transitions, which are detected in a spatially resolved way using a laser beam and a camera. Our vapor cell geometry enables single-shot recording of two-dimensional microwave field images with 350 μm spatial resolution. Using microfabricated vapor cell arrays, a resolution of a few micrometers seems feasible. All vector components of the microwave magnetic field can be imaged. Our apparatus is simple and compact and does not require cryogenics or ultra-high vacuum.
Zur Erbauungszeit der Römerbrücke bei Konz
Creators: name: Hollstein, Ernst
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 12 (1980): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Continuous Life-Cycle Management of Cloud Security Certifications
Creators: name: Kunz, Immanuel
Publisher: name: Zenodo
Year: 2023

description: Cloud computing has witnessed rapid growth in adoption over the last decade, with prominent public cloud vendors like Amazon Web Services, Microsoft Azure, and Google Cloud offering enticing benefits such as cost savings, efficiency, and reduced security responsibilities. However, despite these advantages, cloud adoption remains constrained by the essential factor of trust. To fully leverage cloud services, users must trust cloud providers with the security and confidentiality of their sensitive data. In response to this challenge, cloud security standards have been introduced. These certifications aim to assure users that cloud providers adhere to robust security standards. However, managing these certifications becomes a complex task due to the dynamic nature of cloud systems, necessitating continuous and automated assessment. This whitepaper explores the challenge of managing cloud security certifications automatically and the complexities involved in deciding certification statuses through automation.
This whitepaper focuses on the final parts of the MEDINA pipeline, i.e., the components that aggregate and evaluate assessment results, aggregate decisive data and translate them into a certificate status, and which publish and secure the certificate.
We provide a comprehensive description of how MEDINA addresses the challenge of continuously and (semi-)automatically managing certificates and their life cycle. To this end, we first describe the MEDINA framework as a whole and then we go into the details of the components that are responsible – directly or indirectly – for the continuous management of certificates.
Also, the whitepaper covers a detailed discussion on the benefits and limitations that a continuous, automated life cycle management of cloud security certifications implies, for example regarding the standardization of life cycle management and the false positive results it can produce. We approach this discussion from the auditor's perspective as well as from the CSP's perspective.
In summary, the automated, continuous life cycle management of certificates, e.g., based on the EUCS, holds great potentials as it enables a standardized, transparent management process which also allows auditors to create new business models. At the same time, it involves risks as it is difficult to create an automated process that is reliable, secure, and precise.
Über die Haselnuß (Coryllus avellana L.) als prähistorische Nahrungspflanze
Creators: name: König, Margarethe
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 21 (1989): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Die neu entdeckte spätrömische Weinkelter von Brauneberg
Creators: name: Gilles, Karl-Josef
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 22 (1990): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Titelei
Creators: name: Redaktion, Die
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: -
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 26 (1994): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Titel
Creators: name: Redaktion, Die
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: -
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 27 (1995): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Inhaltsverzeichnis
Creators: name: Redaktion, Die
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: -
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 29 (1997): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Magnetic fluctuations and effective magnetic moments in γ-iron due to electronic structure peculiarities
Creators: name: Igoshev, P. A.
name: Efremov, A. V.
name: Poteryaev, A. I.
name: Katanin, A. A.
name: Anisimov, V. I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Applying the local density and dynamical mean field approximations to paramagnetic γ-iron we revisit the problem of theoretical description of magnetic properties in a wide temperature range. We show that contrary to α-iron, the frequency dependence of the electronic self-energy has a quasiparticle form for both, t_{2g} and e_g states. In the temperature range T=1200-1500 K, where γ-iron exist in nature, this substance can be nevertheless characterized by temperature-dependent effective local moments, which yield relatively narrow peaks in the real part of the local magnetic susceptibility. At the same time, at low temperatures γ-iron (which is realized in precipitates) is better described in terms of itinerant picture. In particular, the nesting features of the Fermi surfaces yield maximum of the static magnetic susceptibility at the incommensurate wave vector q_{max} belonging the direction q_X-q_W (q_X=(2π/a)(1,0,0),q_W=(2π/a)(1,1/2,0), a is a lattice parameter) in agreement with the experimental data. This state is found however to compete closely with the states characterized by magnetic wave vectors along the directions q_X-q_L-q_K, where q_L=(2π/a)(1/2,1/2,1/2), q_K=(2π/a)(3/4,3/4,0). From the analysis of the uniform magnetic susceptibility we find that contrary to α-iron, the Curie-Weiss law is not fulfilled in a broad temperature range, although the inverse susceptibility is nearly linear in the moderate-temperature region (1200-1500 K). The non-linearity of the inverse uniform magnetic susceptibility in a broader temperature range is due to the density of states peak located close to the Fermi level. The effective exchange integrals in the paramagnetic phase are estimated on the base of momentum dependent susceptibility.
description: 10 pages, 11 figures
EXTRA MUROS - Routen zu den Grundlagen städtischen Lebens der Augusta Treverorum : Die Aufwertung der archäologischen Stätten außerhalb der Mauern des römischen Trier als Aufgabe der Denkmalpflege
Creators: name: Kuhnen, Hans-Peter
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 30 (1998): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Non-diagonal charged lepton mass matrix and non-zero $θ_{13}$
Creators: name: Acosta, J. Alberto
name: Aranda, Alfredo
name: Buen-Abad, Manuel A.
name: Rojas, Alma D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Assuming that the neutrino mass matrix is diagonalized by the tribimaximal mixing matrix, we explore the textures for the charged lepton mass matrix that render an $U_{PMNS}$ lepton mixing matrix consistent with data. In particular we are interested in finding the textures with the maximum number of zeros. We explore the cases of real matrices with three and four zeros and find that only ten matrices with three zeros provide solutions in agreement with data. We present the successful Yukawa textures including the relative sizes of their non-zero entries as well as some new and interesting relations among the entries of these textures in terms of the charged lepton masses. We also show that these relations can be obtained directly from a parametrization of the charged lepton mixing matrix $U_l$.
description: 16 pages, two figures. A parametrization of the mixing matrix $U_l$ was introduced to explain observed patterns in textures. References added
Archäologische Beobachtungen zum mittelalterlichen Sandabbau in Trier
Creators: name: Clemens, Lukas
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 31 (1999): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Zur Erinnerung an Museumsdirektor Dr. Reinhard Schindler (1912-2001)
Creators: name: Merten, Jürgen
Publisher: name: Funde und Ausgrabungen im Bezirk Trier
Year: 2019

description: [nicht vorhanden]
description: Funde und Ausgrabungen im Bezirk Trier, Bd. 33 (2001): Funde und Ausgrabungen im Bezirk Trier : Aus der Arbeit des Rheinischen Landesmuseums Trier
Operator-Like Wavelet Bases of $L_2(\mathbb{R}^d)$
Creators: name: Khalidov, Ildar
name: Unser, Michael
name: Ward, John Paul
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42C40, 42B15, 60H15

description: The connection between derivative operators and wavelets is well known. Here we generalize the concept by constructing multiresolution approximations and wavelet basis functions that act like Fourier multiplier operators. This construction follows from a stochastic model: signals are tempered distributions such that the application of a whitening (differential) operator results in a realization of a sparse white noise. Using wavelets constructed from these operators, the sparsity of the white noise can be inherited by the wavelet coefficients. In this paper, we specify such wavelets in full generality and determine their properties in terms of the underlying operator.
description: 34 pages