cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An alternative to anti-branes and O-planes?
Creators: name: Danielsson, Ulf
name: Dibitetto, Giuseppe
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we consider type IIA compactifications in the isotropic Z2 x Z2 orbifold with a flux-induced perturbative superpotential combined with non-perturbative effects. Without requiring the presence of O-planes, and simply having D6-branes as local sources, we demonstrate the existence of de Sitter (dS) critical points, where the non-perturbative contributions to the cosmological constant have negligible size. We note, however, that these solutions generically have tachyons. By means of a more systematic search, we are able to find two examples of stable dS vacua with no need for anti-branes or O-planes, which, however, exhibit important non-perturbative corrections. The examples that we present turn out to remain stable even after opening up the fourteen non-isotropic moduli.
description: 12 pages, 4 tables; v2: typos corrected, published version
Building a better grid authentication system with Kerberos
Creators: name: McBride, David William
Publisher: name: Imperial College London
Year: 2022

description: Authentication is the act of verifying that the agent you are communicating with really is the same one you believe you’re talking to. This capability is a vital prerequisite for security in many systems, electronic or otherwise. Given the existence of a trusted third party, we can effectively authenticate users and systems in a single locale using Kerberos. Across much larger networks, such as the Internet, we can instead use public keys certified by one of many trusted third parties. Current Grid systems use GSI, a system based on public keys, for the authentication of users and services alike. However, end-users are generally not proficient at handling such keys; they require a support mechanism, or security suffers. We describe how existing technologies - namely, Kerberos 5, PKCROSS and DNSSEC- bis - can be integrated to support a more usable and featureful authentication infrastructure suitable for a range of public Internet operations, including Grid applications, with fewer central points of failure (and attack), that retains the desirable security and performance attributes of existing approaches, while minimising the costs of deployment, upkeep and maintenance. We begin by describing specific use-cases of interest and present a set of requirements that a large-scale authentication mechanism should exhibit. We show that the Kerberos 5 cross-realm security model, given some additional Realm authentication mechanism, would provide an efficient and reliable authentication infrastructure that satisfies our requirements. We then show how to revise the proposed PKCROSS extensions for Kerberos to exploit the burgeoning DNSSEC-6is infrastructure to establish point-to-point cross-realm trust relationships autonomously, thereby enabling foreign services to authenticate a user via their home institutional Kerberos credentials. However, DNSSEC-6zs is unacceptably flawed: it introduces a single, ultimately trusted root authority for public Internet security operations. Therefore, we present a modified scheme which distributes this root authority between the operators of the top-level domains, whom we believe would collectively be more trustworthy - that retains the performance and much of the conceptual simplicity of the current design.
Reconstructing the Local Potential of Inflation with BICEP2 data
Creators: name: Ma, Yin-Zhe
name: Wang, Yi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We locally reconstruct the inflationary potential by using the current constraints on $r$ and $n_{\rm s}$ from BICEP2 data. Assuming small and negligible $α_{\rm s}$, the inflationary potential is approximately linear in $Δϕ\sim M_{\rm pl}$ range but becomes non-linear in $Δϕ\sim 10 M_{\rm pl}$ range. However if we vary the value of $α_{\rm s}$ within the range given by constraints from {\it Planck} measurement, the local reconstruction is only valid in the range of $Δϕ\sim 0.4 M_{\rm pl}$, which challenges the inflationary background from the point of view of effective field theory. We show that, within the range of $Δϕ\sim 0.4 M_{\rm pl}$, the inflation potential can be precisely reconstructed. With the current reconstruction, we show that $V(ϕ) \sim ϕ^{2}$ and $ϕ^{3}$ are consistent, while $ϕ$ model is ruled out by $95\%$ confidence level of the reconstructed range of potential. This sets up a strong limit of large-field inflation models.
description: 11 pages, 10 figures
Measurement of four-jet production in proton-proton collisions at sqrt(s) = 7 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Measurements of the differential cross sections for the production of exactly four jets in proton-proton collisions are presented as a function of the transverse momentum pt and pseudorapidity eta, together with the correlations in azimuthal angle and the pt balance among the jets. The data sample was collected in 2010 at a center-of-mass energy of 7 TeV with the CMS detector at the LHC, with an integrated luminosity of 36 inverse picobarns. The cross section for a final state with a pair of hard jets with pt > 50 GeV and another pair with pt > 20 GeV within abs(eta) < 4.7 is measured to be sigma = 330 +- 5 (stat.) +- 45 (syst.) nb. It is found that fixed-order matrix element calculations including parton showers describe the measured differential cross sections in some regions of phase space only, and that adding contributions from double parton scattering brings the Monte Carlo predictions closer to the data.
description: Replaced with published version. Added journal reference and DOI
Supplementary Material from Phylogenomic diversity of archigregarine apicomplexans
Creators: name: Lax, Gordon
name: Park, Eunji
name: Na, Ina
name: Jacko-Reynolds, Victoria
name: Kwong, Waldan K
name: House, Chloe S. E.
name: Trznadel, Morelia
name: Wakeman, Kevin
name: Leander, Brian
name: Keeling, Patrick J
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310803
subject: Plant cell and molecular biology
classificationCode: 310902
subject: Animal cell and molecular biology

description: Suppl-Fig4_gCF-sCF_v1-2.pdf
THE THREAT OF VIOLENCE IN PART 3 OF ARTICLE 342 OF THE CRIMINAL CODE OF UKRAINE: CURRENT ISSUES OF LAW ENFORCEMENT
Creators: name: Andrii, Borovyk
Publisher: name: Zenodo
Year: 2023
Subjects: coercion
violence
hreat of using violence
obviously illegal actions

description: The part 3 of Art. 342 of the Criminal Code of Ukraine establishes the grounds for criminal liability for qualified resistance. Resistance combined with coercion of a representative of the authorities, a state executive, a member of a public formation for the protection of public order and the state border or a military officer, an authorized person of the Individual Deposit Guarantee Fund through violence or the threat of using such violence to perform clearly illegal actions. The combination of such terms as “coercion,” “violence,” “threat of using violence,” “obviously illegal actions” in one part of the prohibitive criminal law significantly complicates its application in practice.
Spin Dynamics in Organic Semiconductors
Creators: name: Schott, Sam
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Physics
Organic Semiconductors
Spintronics
Electron spin resonance

description: Organic semiconductors exhibit exceptionally long spin lifetimes, and recent observations of the inverse spin hall effect as well as micrometer spin diffusion lengths in conjugated polymers have spiked interest in employing such carbon-based materials in spintronics applications. The charge transport and photophysics of organic semiconductors have been intensely studied for optoelectronic applications, revealing subtle relationships between molecular geometry, morphology and physical properties. Similar structure-property relationships remain mostly unknown for spin dynamics, where the charge carrier spins couple to their environment through hyperfine (HFI) and spin-orbit interactions (SOC). HFIs provide a pathway for spin relaxation while SOC plays a dual role in such materials: it couples the spin to its angular momentum and therefore enables both spin-to-charge conversion and spin relaxation. Understanding the molecular SOC, and finding a means to tune its strength, therefore is fundamentally important for materials design and selection. However, quantifying SOC strengths indirectly through spin relaxation effects has proven difficult due to competing relaxation mechanisms. We initially present a systematic study of the g-tensor shift in molecular semiconductors and establish it as a probe for the SOC strength in a series of high mobility molecular semiconductors. The results demonstrate a rich variability of molecular g-shifts with the effective SOC, depending on subtle aspects of molecular composition and structure. We then correlate the above g-shifts to spin-lattice relaxation times over four orders of magnitude, from 200 µs to 0.15 µs, for isolated molecules in solution and relate our findings to the spin relaxation mechanisms that are likely to be relevant in solid state systems. Isolated molecules provide an ideal model system to investigate a spin’s interactions with its environment but device applications commonly employ thin films. The second half of this thesis investigates polaron spin lifetimes in field effect transistors with high-mobility conjugated polymers as active layers. We use field-induced electron spin resonance measurements to demonstrate that spin relaxation is governed by the charges' hopping motion at low temperatures while Elliott-Yafet-like relaxation due to short-range, rapid spin density dynamics likely dominates high temperature spin lifetimes. Such a microscopic relaxation mechanism is highly sensitive to the local conformation of polymer backbones and we show its dependence on the degree of crystallinity in a polymer film.
Constructional Aspects of the Rise of epistemic sentence adverbs in Russian.
Creators: name: Hansen, Björn
Publisher: name: Universität Regensburg
Year: 2010
Subjects: subject: 400 Sprachwissenschaft, Linguistik
subject: 490 Andere Sprachen

description: In this article we are going to trace the transition of modal verbs into epistemic adverbs. This development found in nearly all European languages will be analysed on the basis of Russian možet (byt’) which goes back to the third person singular present tense of the modal verb moč’ plus infinitive. In our study we shall focus on the constructional aspects of this language change with the aim to show the close interaction of semantics on the one, and argument structure on the other hand. The first part of the contribution is dedicated to a synchronic account and the second shows the diachronic development of the constructions involved. We will argue that the rise of epistemic sentence adverbs involves a third construction traditionally called complex subject sentence (možet byt’, čto p). It will be shown that the rise of sentence adverbs is a complex process consisting of both gradual and discrete micro-processes.
Make and Sell or Buy of Web Services a Real Option Approach
Creators: name: Heinrich, Bernd
name: Huber, Andreas
name: Zimmermann, Steffen
Publisher: name: Universität Regensburg
Year: 2011
Subjects: subject: Make or Buy Decisions, Web Services, Real Options
subject: 330 Wirtschaft

description: The emergence of the web service market in the last years offers more and more the opportunity for companies to buy web services from external service providers as an alternative to develop them internally. Such considerations are well-known in IS literature and discussed in the context of IT outsourcing and make-orbuy decision making regarding IT applications. However, characteristics of web services like loose coupling or highly standardized interfaces open the door for a further opportunity to companies: If a company decides to internally develop a web service (make decision), it has additionally the right (but not the obligation) to sell it on the electronic web service market. The present paper examines how such a sell option can be modeled to enhance traditional make-or-buy approaches to a make-and-sell or buy approach for web services. To evaluate the sell option, we draw on real option analysis which is frequently used in valuating IT assets like IT applications. Furthermore, we apply our approach in a real world example of a financial service provider to demonstrate its applicability and practical benefits. By doing so we illustrate that the option to sell a web service may have considerable impact on traditional make-or-buy decisions.
LQG for the Bewildered
Creators: name: Bilson-Thompson, Sundance
name: Vaid, Deepak
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a pedagogical introduction to the notions underlying the connection formulation of General Relativity - Loop Quantum Gravity (LQG) - with an emphasis on the physical aspects of the framework. We begin by reviewing General Relativity and Quantum Field Theory, to emphasise the similarities between them which establish a foundation upon which to build a theory of quantum gravity. We then explain, in a concise and clear manner, the steps leading from the Einstein-Hilbert action for gravity to the construction of the quantum states of geometry, known as \emph{spin-networks}, which provide the basis for the kinematical Hilbert space of quantum general relativity. Along the way we introduce the various associated concepts of \emph{tetrads}, \emph{spin-connection} and \emph{holonomies} which are a pre-requisite for understanding the LQG formalism. Having provided a minimal introduction to the LQG framework, we discuss its applications to the problems of black hole entropy and of quantum cosmology. A list of the most common criticisms of LQG is presented, which are then tackled one by one in order to convince the reader of the physical viability of the theory. An extensive set of appendices provide accessible introductions to several key notions such as the \emph{Peter-Weyl theorem}, \emph{duality} of differential forms and \emph{Regge calculus}, among others. The presentation is aimed at graduate students and researchers who have some familiarity with the tools of quantum mechanics and field theory and/or General Relativity, but are intimidated by the seeming technical prowess required to browse through the existing LQG literature. Our hope is to make the formalism appear a little less bewildering to the un-initiated and to help lower the barrier for entry into the field.
description: 87 pages, 15 figures, manuscript submitted for publication
Smirnov's observable for free boundary conditions, interfaces and crossing probabilities
Creators: name: Izyurov, Konstantin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 82B20, 60J67

description: We prove convergence results for variants of Smirnov's fermionic observable in the critical Ising model in presence of free boundary conditions. One application of our analysis is a simple proof of a theorem by Hongler and Kytölä on convergence of critical Ising interfaces with plus-minus-free boundary conditions to dipolar SLE(3), and generalization of this result to arbitrary number of arcs carrying plus, minus or free boundary conditions. Another application is a computation of scaling limits of crossing probabilities in FK-Ising model with arbitrary number of alternating wired/free boundary arcs. We also deduce a new crossing formula for the spin Ising model.
description: 27 pages, 2 figures. Several proofs expanded, a small gap fixed in the proof of Theorem 2.6, typos corrected
On the Cahn-Hilliard equation with dynamic boundary conditions and a dominating boundary potential
Creators: name: Colli, Pierluigi
name: Gilardi, Gianni
name: Sprekels, Jürgen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K55, 35K50, 82C26

description: The Cahn-Hilliard and viscous Cahn-Hilliard equations with singular and possibly nonsmooth potentials and dynamic boundary condition are considered and some well-posedness and regularity results are proved. Key words: Cahn-Hilliard equation, dynamic boundary conditions, phase separation, irregular potentials, well-posedness.
description: A revised version of this paper has been published on J. Math. Anal. Appl. 419 (2014), 972-994: the authors would like to point out that both the published version and the arXiv preprint contain a useless assumption in formula (2.37), concerning the zero normal derivative of the initial value on the boundary; indeed this condition is never employed in the proofs
On the Joint Impact of Beamwidth and Orientation Error on Throughput in Directional Wireless Poisson Networks
Creators: name: Wildman, Jeffrey
name: Nardelli, Pedro H J
name: Latva-aho, Matti
name: Weber, Steven
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: We introduce a model for capturing the effects of beam misdirection on coverage and throughput in a directional wireless network using stochastic geometry. In networks employing ideal sector antennas without sidelobes, we find that concavity of the orientation error distribution is sufficient to prove monotonicity and quasi-concavity (both with respect to antenna beamwidth) of spatial throughput and transmission capacity, respectively. Additionally, we identify network conditions that produce opposite extremal choices in beamwidth (absolutely directed versus omni-directional) that maximize the two related throughput metrics. We conclude our paper with a numerical exploration of the relationship between mean orientation error, throughput-maximizing beamwidths, and maximum throughput, across radiation patterns of varied complexity.
description: 14 pages, 9 figures. Submitted on 2013-12-20 to IEEE Transactions on Wireless Communications. Accepted on 2014-06-03 to IEEE Transactions on Wireless Communications
Degree profile of $m$-ary search trees: A vehicle for data structure compression
Creators: name: Kalpathy, Ravi
name: Mahmoud, Hosam
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We revisit the random $m$-ary search tree and study a finer profile of its node outdegrees with the purpose of exploring possibilities of data structure compression. The analysis is done via Pólya urns. The analysis shows that the number of nodes of each individual node outdegree has a phase transition: Up to $m=26$, the number of nodes of outdegree $k$, for $k=0,1, \ldots, m$, is asymptotically normal; that behavior changes at $m = 27$. Based on the analysis, we propose a compact $m$-ary tree that offers significant space saving.
Extremes of Aggregated Dirichlet Risks
Creators: name: Hashorva, Enkelejd
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The class of Dirichlet random vectors is central in numerous probabilistic and statistical applications. The main result of this paper derives the exact tail asymptotics of the aggregated risk of powers of Dirichlet random vectors when the radial component has df in the Gumbel or the Weibull max-domain of attraction. We present further results for the joint asymptotic independence and the max-sum equivalence.
description: published version
Localization of $q-$form fields on $AdS_{p+1}$ branes
Creators: name: Fu, Chun-E
name: Liu, Yu-Xiao
name: Guo, Heng
name: Chen, Feng-Wei
name: Zhang, Sheng-Li
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we investigate localization of a free massless $q-$form bulk field on thin and thick $AdS_{p+1}$ branes with codimension one. It is found that the zero mode of the $q-$form field with $q>(p+2)/2$ can be localized on the thin negative tension brane, which is different from the flat brane case given in [JHEP 10 (2012) 060]. For the thick $AdS_{p+1}$ branes, the $q-$form field with $q>(p+2)/2$ also has a localized zero mode under some conditions. Furthermore, we find that there are massive bound KK modes of the $q-$form field, which are localized on this type $p-$branes.
description: 13 pages
Supplementary Material 2 - Selection of Scanning Electron Micrographs showing Taphonomic Changes from Pests or prey? Micromammal species within an ancient anthropic environment at the Norse settlement site of Tuquoy (Westray, Orkney)
Creators: name: Romaniuk, Andrzej A.
name: Troalen, Lore G.
name: Bendrey, Robin
name: Herman, Jeremy S.
name: Owen, Olwyn
name: Smith, Catherine
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences

description: PDF with examples of micrographs taken using Scanning Electron Microscopy; each case with its own description
The Ohm-Rush content function
Creators: name: Epstein, Neil
name: Shapiro, Jay
Publisher: name: arXiv
Year: 2014
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13B02, 13A15, 13F30

description: The content of a polynomial over a ring $R$ is a well understood notion. Ohm and Rush generalized this concept of a content map to an arbitrary ring extension of $R$, although it can behave quite badly. We examine five properties an algebra may have with respect to this function -- content algebra, weak content algebra, semicontent algebra (our own definition), Gaussian algebra, and Ohm-Rush algebra. We show that the Gaussian, weak content, and semicontent algebra properties are all transitive. However, transitivity is unknown for the content algebra property. We then compare the Ohm-Rush notion with the more usual notion of content in the power series context. We show that many of the given properties coincide for the power series extension map over a valuation ring of finite dimension, and that they are equivalent to the value group being order-isomorphic to the integers or the reals. Along the way, we give a new characterization of Prüfer domains.
description: 14 pages. Unnecessary assumptions have been removed from Theorem 4.10 and Corollary 4.11. Minor corrections made. To appear in: Journal of Algebra and its Applications
Rapidity Distributions in Drell-Yan and Higgs Productions at Threshold to Third Order in QCD
Creators: name: Ahmed, Taushif
name: Mandal, M. K.
name: Rana, Narayan
name: Ravindran, V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the threshold N$^3$LO perturbative QCD corrections to the rapidity distributions of dileptons in the Drell-Yan process and Higgs boson in gluon fusion. Sudakov resummation of QCD amplitudes, renormalization group invariance, and the mass factorization theorem provide useful guidelines to obtain them in an elegant manner. We use various state of the art three loop results that have been recently available to obtain these distributions. For the Higgs boson, we demonstrate numerically the importance of these corrections at the LHC.
description: 5 pages. v2 : Published version, title changed, discussions added
Analyzing the Impact of new Features on Users’ Communication Activities in Online Social Networks
Creators: name: Demetz, Lukas
name: Heinrich, Bernd
name: Klier, Mathias
Publisher: name: Universität Regensburg
Year: 2011
Subjects: subject: Online Social Networks, Facebook, Feature, Communication Activities, Event Study
subject: 330 Wirtschaft

description: Nowadays, online social networks (OSN) have become popular Internet platforms. While some of them are gathering an increasing number of users (e.g., Facebook), other OSN fail to maintain their user base (e.g., MySpace) and are confronted with a termination of their services. But what makes the difference between successful and less successful OSN? In literature, for instance, network effects, content related aspects and security mechanisms as well as the introduction of new features (e.g., Facebook’s “Places” or Bebo’s “Visitors Map”) are generally considered to be enablers of success for OSN. However, only little research has been done so far to empirically analyze the impact of new features on users’ communication activities and thus indirectly on the success of OSN. For this reason, our research examines whether the introduction of the central feature “Publisher” by Facebook caused a significant increase of users’ communication activities. In order to empirically investigate this question, we use a publicly available dataset of the Facebook New Orleans Network. Moreover, among others, we adapt and use the event study methodology to be able to account for trends in the time series of users’ communication activities. This leads to interesting results that do not support existing statements in literature.
Impact of a four-zero Yukawa texture on $h\to γγ$ and $γZ$ in the framework of the Two Higgs Doublet Model Type III
Creators: name: Cordero-Cid, A.
name: Hernandez-Sanchez, J.
name: Honorato, C. G.
name: Moretti, S.
name: Perez, M. A.
name: Rosado, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the substantial enhancement, with respect to the corresponding Standard Model rates, that can be obtained for the branching ratios of the decay channels $h \to γγ$ and $h\to γZ$ within the framework of the Two Higgs Doublet Model Type III, assuming a four-zero Yukawa texture and a general Higgs potential. We show that these processes are very sensitive to the flavor pattern entering the Yukawa texture and to the triple coupling structure of the Higgs potential, both of which impact onto the aforementioned decays. We can accommodate the parameters of the model in such a way to obtain the $h \to γγ$ rates reported by the Large Hadron Collider and at the same time we get a $h\to γZ$ fraction much larger than in the Standard Model, indeed within experimental reach. We present some scenarios where this phenomenology is realized for spectrum configurations that are consistent with current constraints. We also discuss the possibility of obtaining a light charged Higgs boson compatible with all such measurements, thereby serving the purpose of providing a hallmark signal of the scenario considered.
description: 26 pages, 13 figures. Version accepted for publication in JHEP
Lieb-Thirring Bounds for Interacting Bose Gases
Creators: name: Lundholm, Douglas
name: Portmann, Fabian
name: Solovej, Jan Philip
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81Q10, 35P15, 46N50

description: We study interacting Bose gases and prove lower bounds for the kinetic plus interaction energy of a many-body wave function in terms of its particle density. These general estimates are then applied to various types of interactions, including hard sphere (in 3D) and hard disk (in 2D) as well as a general class of homogeneous potentials.
description: Accepted and final version. 44 pages
Multiple Semiclassical Standing Waves for Fractional Nonlinear Schrödinger Equations
Creators: name: Chen, Guoyuan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Via a Lyapunov-Schmidt reduction, we obtain multiple semiclassical solutions to a class of fractional nonlinear Schrödinger equations. Precisely, we consider \begin{equation*} \varepsilon^{2s}(-Δ)^{s}u+u+V(x)u=|u|^{p-1}u,\quad u\in H^s(\mathbf R^n), \end{equation*} where $04-4s$, $12s$) and $1
description: Some error corrected, several references added
Drell-Yan Production at Threshold to Third Order in QCD
Creators: name: Ahmed, Taushif
name: Mahakhud, Maguni
name: Rana, Narayan
name: Ravindran, V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The recent computation on the full threshold contributions to Higgs boson production at next-to-next-to-next-to-leading order (N$^3$LO) in QCD contains valuable information on the soft gluons resulting from virtual and real emission partonic subprocesses. We use those from the real emissions to obtain the corresponding soft gluon contributions to Drell-Yan production and determine the missing $δ(1-z)$ part of the N$^3$LO. The numerical impact of threshold effects demonstrates the importance of our results in the precision study with the Drell-Yan process at the LHC.
description: 5 pages, 1 fig.; v2: Published version; Title changed; Discussions added
Weight filtration on the cohomology of complex analytic spaces
Creators: name: Cirici, Joana
name: Guillén, Francisco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 32C18, 32S35

description: We extend Deligne's weight filtration to the integer cohomology of complex analytic spaces (endowed with an equivalence class of compactifications). In general, the weight filtration that we obtain is not part of a mixed Hodge structure. Our purely geometric proof is based on cubical descent for resolution of singularities and Poincaré-Verdier duality. Using similar techniques, we introduce the singularity filtration on the cohomology of compactificable analytic spaces. This is a new and natural analytic invariant which does not depend on the equivalence class of compactifications and is related to the weight filtration.
description: examples added + minor corrections
The Kingman tree length process has infinite quadratic variation
Creators: name: Dahmer, Iulia
name: Knobloch, Robert
name: Wakolbinger, Anton
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G17, 92D25

description: In the case of neutral populations of fixed sizes in equilibrium whose genealogies are described by the Kingman $N$-coalescent back from time $t$ consider the associated processes of total tree length as $t$ increases. We show that the (càdlàg) process to which the sequence of compensated tree length processes converges as $N$ tends to infinity is a process of infinite quadratic variation; therefore this process cannot be a semimartingale. This answers a question posed in Pfaffelhuber et al. (2011).
description: 13 pages, 3 figures
Spatial Analysis of the Public Transport Accessibility for Modelling the Modal Split in the Context of Site Identification for Charging Infrastructure
Creators: name: Brost, Waldemar
name: Funke, Teresa
name: Lembach, Michael
Publisher: name: RWTH Aachen University
Year: 2018

description: REAL CORP 2018, Vienna, Austria, 4 Apr 2018 - 6 Apr 2018; MDPI, infrastructures 3/3, (2018). doi:10.3390/infrastructures3030021
description: Published by MDPI
Die fachkonzeptionelle Gestaltung der Kundenbeziehung als Basis für den Prozessentwurf
Creators: name: Heinrich, Bernd
Publisher: name: Universität Regensburg
Year: 2002
Subjects: subject: 330 Wirtschaft

description: In saturierten und wettbewerbsintensiven Märkten muss die Zielsetzung verfolgt werden, den einmal gewonnenen Kunden nachhaltiger an das Unternehmen zu binden, um ihm auch zukünftig die eigenen Dienstleistungen möglichst ausschliesslich anbieten zu können. Derartige Erkenntnisse bedeuten einen Übergang zwischen der kurzfristigen Vermarktung einzelner Produkte und Produktbündel hin zu einer längerfristigen Perspektive, die den Kunden bzw. die Beziehung als Wertgegenstand in den Mittelpunkt der Betrachtung stellt. Wird jedoch der Kunde als „kritische Ressource“ des Unternehmens verstanden, müssen aufgrund der Bedeutung dem Prozessentwurf und dem IT-Einsatz zwangsläufig fachkonzeptionelle Überlegungen vorangehen. Der Beitrag greift diesen Problembereich auf und stellt anhand einzelner praktischer Beispiele ein methodisches Vorgehen zur Bearbeitung der Problematik dar.
Stellar stability in brane-worlds revisited
Creators: name: García-Aspeitia, Miguel A.
name: Ureña-López, L. Arturo
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider here the general conditions for the stability of brane stars that obey a so called a "minimal setup": the nonlocal anisotropic stress and energy flux are everywhere absent, and the only permitted Weyl correction is the interior solution of the nonlocal energy density. Along with a series of simple conditions, we show that the Germani-Maartens solution with a constant density sets up the upper bound for the compactness of that particular class of brane stars. The general demonstration is based upon the properties of the interior solutions of the stars, although we also show that the minimal setup implies a Schwarzschild exterior.
description: 5 pages, 1 figure
Renormalizability of Yang-Mills theory with Lorentz violation and gluon mass generation
Creators: name: Santos, T. R. S.
name: Sobreiro, R. F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that pure Yang-Mills theories with Lorentz violation are renormalizable to all orders in perturbation theory. To do this, we employ the algebraic renormalization technique. Specifically, we control the breaking terms with a suitable set of external sources which, eventually, attain certain physical values. The Abelian case is also analyzed as a starting point. The main result is that the renormalizability of the usual Maxwell and Yang-Mills sectores are both left unchanged. Furthermore, in contrast to Lorentz violating QED, the odd CPT violation sector of Yang-Mills theories renormalizes independently. Moreover, the method induces, in a natural way, mass terms for the gauge field while the photon remains massless (at least n the sense of a Proca-like term). The entire analysis is carried out at the Landau gauge.
description: 20 pages. No figures. To appear at the PRD
Predicting missing links via significant paths
Creators: name: Zhu, Xuzhen
name: Tian, Hui
name: Cai, Shimin
name: Zhou, Tao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Link prediction plays an important role in understanding intrinsic evolving mechanisms of networks. With the belief that the likelihood of the existence of a link between two nodes is strongly related with their similarity, many methods have been proposed to calculate node similarity based on node attributes and/or topological structures. Among a large variety of methods that take into account paths connecting the target pair of nodes, most of which neglect the heterogeneity of those paths. Our hypothesis is that a path consisting of small-degree nodes provides a strong evidence of similarity between two ends, accordingly, we propose a so-called sig- nificant path index in this Letter to leverage intermediate nodes' degrees in similarity calculation. Empirical experiments on twelve disparate real networks demonstrate that the proposed index outperforms the mainstream link prediction baselines.
description: 6 pages, 2 figures
KOunt_test_fastqs.tar
Creators: name: Mattock, Jennifer
name: Martínez-Álvaro, Marina
name: Roehe, Rainer
name: Watson, Mick
Publisher: name: figshare
Year: 2023
Subjects: Bioinformatics and computational biology not elsewhere classified
Applications in life sciences

description: Subsampled reads from ERR2027889 to enable quick testing that KOunt installation has been successful
The Freiheitssatz for Generic Poisson Algebras
Creators: name: Kolesnikov, Pavel S.
name: Makar-Limanov, Leonid G.
name: Shestakov, Ivan P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: We prove the Freiheitssatz for the variety of generic Poisson algebras.
Quantum stochastic behaviour in cold Fermi gases: Phonon propagation
Creators: name: Hsiang, En-Tsung
name: Lee, Da-Shin
name: Lin, Chi-Yong
name: Rivers, Ray J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We examine the effect of quantum fluctuations in a tunable cold Fermi gas on the propagation of phonons. We show that these fluctuations can be interpreted as inducing a stochastic (acoustic) space-time. The variation in times of flight induced by this stochastic behaviour can be significant in the transition region between BEC and BCS regimes.
description: In v.2 the formalism and conclusions are as before, but given in a way that makes the discussion easier to understand experimentally
Electrostatic potential variations along flux surfaces in stellarators
Creators: name: Pedrosa, M. A.
name: Alonso, J. A.
name: García-Regaña, J. M.
name: Hidalgo, C.
name: Velasco, J. L.
name: Calvo, I.
name: Silva, C.
name: Helander, P.
name: Kleiber, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: First observations of electrostatic potential variations within the flux surfaces of a toroidal magnetic confinement device are presented. Measurements are taken in the TJ-II stellarator with two distant Langmuir probe arrays. The edge floating potentials display differences of several tens of Volts in electron-root wave-heated plasmas. The differences are reduced for higher densities and lower electron temperatures after the ion-root electric field forms at the plasma edge. Neoclassical Monte Carlo simulations estimate the correct order of magnitude for the overall variation in potential and predict the trend observed with the radial electric field. However, for the specific location of the probes, the simulations give differences smaller than those observed experimentally.
Tables for reduction of generalized polylogarithms (GPL) up to the weight 9 with the alphabet formed by the 4-th roots of unity
Creators: name: Andrey, Pikelner
Publisher: name: Zenodo
Year: 2022
Subjects: Generalised polylogarithms
Transcendental constants
Feynman integrals

description: Reduction tables for GPLs with the alphabet formed by fourtth roots of unity and unit argument up to the weight 9: Considered GPLs: \(G({a_1,\ldots a_k};1), \quad k\le9, \quad a_1\ne1, \quad a_i \in \{0,\pm1,\pm i\}\) G[{a1,...,ak},1] Basis elements are defined in terms of the basis functions: \(\mathrm{Cl}_{a_1,\ldots, a_k}\left(\frac{\pi}{2}\right), \mathrm{Gl}_{a_1,\ldots, a_k}\left(\frac{\pi}{2}\right)\) Cl[{a1,...,ak},Pi/2], Gl[{a1,...,ak},Pi/2] At the each weight reduction tables contain the following number of entries: weight 1 2 3 4 5 6 7 8 9 entries 4 20 100 500 2500 12500 62500 312500 1562500 To fix notation, below we provide full content of the weight one reduction table: { G[{0}, 1] -> 0, G[{-1}, 1] -> -2*Cl[{1}, Pi/2], G[{I}, 1] -> (I/4)*Pi - Cl[{1}, Pi/2], G[{-I}, 1] -> (-1/4*I)*Pi - Cl[{1}, Pi/2] } All files are compressed with Zstandard to extract them run: zstd -d 
The Kummer tensor density in electrodynamics and in gravity
Creators: name: Baekler, Peter
name: Favaro, Alberto
name: Itin, Yakov
name: Hehl, Friedrich W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Guided by results in the premetric electrodynamics of local and linear media, we introduce on 4-dimensional spacetime the new abstract notion of a Kummer tensor density of rank four, ${\cal K}^{ijkl}$. This tensor density is, by definition, a cubic algebraic functional of a tensor density of rank four ${\cal T}^{ijkl}$, which is antisymmetric in its first two and its last two indices: ${\cal T}^{ijkl} = - {\cal T}^{jikl} = - {\cal T}^{ijlk}$. Thus, ${\cal K}\sim {\cal T}^3$, see Eq.(46). (i) If $\cal T$ is identified with the electromagnetic response tensor of local and linear media, the Kummer tensor density encompasses the generalized {\it Fresnel wave surfaces} for propagating light. In the reversible case, the wave surfaces turn out to be {\it Kummer surfaces} as defined in algebraic geometry (Bateman 1910). (ii) If $\cal T$ is identified with the {\it curvature} tensor $R^{ijkl}$ of a Riemann-Cartan spacetime, then ${\cal K}\sim R^3$ and, in the special case of general relativity, ${\cal K}$ reduces to the Kummer tensor of Zund (1969). This $\cal K$ is related to the {\it principal null directions} of the curvature. We discuss the properties of the general Kummer tensor density. In particular, we decompose $\cal K$ irreducibly under the 4-dimensional linear group $GL(4,R)$ and, subsequently, under the Lorentz group $SO(1,3)$.
description: 54 pages, 6 figures, written in LaTex; improved version in accordance with the referee report
Some new results on modified diagonals
Creators: name: Voisin, Claire
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: O'Grady studied recently $m$-th modified diagonals for a smooth projective variety, generalizing the Gross-Schoen modified small diagonal. These cycles $Γ^m(X,a)$ depend on a choice of reference point $a\in X$ (or more generally a degree $1$ zero-cycle). We prove that for any $X,a$, the cycle $Γ^m(X,a)$ vanishes for large $m$. We also prove the following conjecture of O'Grady: if $X$ is a double cover of $Y$ and $Γ^m(Y,a)$ vanishes (where $a$ belongs to the branch locus), then $Γ^{2m-1}(X,a)$ vanishes, and we provide a generalization to higher degree finite covers. We finally prove the vanishing $Γ^{n+1}(X,o_X)=0$ when $X=S^{[m]}$, $S$ a $K3$ surface, and $n=2m$, which was conjectured by O'Grady and proved by him for $m=2,3$.
description: Final version, to appear in Geometry and Topology
HUVN Investiga nº 13
Creators: name: Flores, Encarnación Gonzalez
name: Águila, Mª Mar Rodríguez Del
name: Alba-Ruiz, Rubén
Publisher: name: Zenodo
Year: 2023
Subjects: Investigación
Newsletter
Noticias
Financiación
Premios
Ensayos Clínicos
Publicaciones
Indicadores bibliométricos

description: La Unidad de Gestión y Apoyo a la Investigación del Hospital Universitario Virgen de las Nieves de Granada publica el Newsletter mensual número 13 correspondiente a marzo de 2023. La newsletter contiene información sobre la producción científica, proyectos, cursos y actividades formativas en investigación, información de los ensayos clínicos, premios y noticias de interés del el Hospital Universitario Virgen de las Nieves de Granada. Se presenta ChatGPT Impact Project, un proyecto para monitorizar el impacto de ChatGPT en nuestras sociedades, elaborado por un grupo de investigadores académicos, entre ellos nuestro compañero Rubén Alba-Ruiz (Biblioteca). Además, se han publicado los informes de Impactia (https://bvsspa.es/servicios/impactia/) que contienen tanto la producción científica con impact factor del SSPA extraída de la Core Collection de la WoS (web of Science) como la indexada en Scopus, con fecha de publicación desde el 1 enero al 20 de diciembre de 2022. En esta ocasión como artículo del mes, se presenta el trabajo "Sex differences in the diagnosis, treatment and prognosis of cancer: the rationale for an individualised approach", donde SEOM ha creado un grupo de trabajo para abordar las diferencias de sexo en la biología y el tratamiento del cáncer, y para crear conciencia sobre estas diferencias entre los profesionales de la oncología. Como "Recurso del mes" se ha incluido Jot, una nueva herramienta de código abierto que ayuda a los investigadores a
 seleccionar revistas. https://www.huvn.es/investigacion/newsletter_huvn_investiga
description: La newsletter contiene información sobre la producción científica, proyectos, cursos, ensayos clínicos, premios y noticias de interés del el Hospital Universitario Virgen de las Nieves de Granada. Se trata de una revista digital mensual que proporciona contenido para ejecutivos de hospitales y sistemas de salud. El boletín está disponible en formato de archivo Adobe PDF y se puede descargar desde el sitio web del hospital.
Reevaluation of the parton distribution of strange quarks in the nucleon
Creators: name: The HERMES Collaboration
name: Airapetian, A.
name: Akopov, N.
name: Akopov, Z.
name: Aschenauer, E. C.
name: Augustyniak, W.
name: Avetissian, A.
name: Avetisyan, E.
name: Belostotski, S.
name: Blok, H. P.
name: Borissov, A.
name: Bryzgalov, V.
name: Burns, J.
name: Capiluppi, M.
name: Capitani, G. P.
name: Cisbani, E.
name: Ciullo, G.
name: Contalbrigo, M.
name: Dalpiaz, P. F.
name: Deconinck, W.
name: De Leo, R.
name: De Sanctis, E.
name: Diefenthaler, M.
name: Di Nezza, P.
name: Düren, M.
name: Ehrenfried, M.
name: Elbakian, G.
name: Ellinghaus, F.
name: Etzelmüller, E.
name: Felawka, L.
name: Frullani, S.
name: Gabbert, D.
name: Gapienko, G.
name: Gapienko, V.
name: García, J. Garay
name: Garibaldi, F.
name: Gavrilov, G.
name: Gharibyan, V.
name: Giordano, F.
name: Gliske, S.
name: Hartig, M.
name: Hasch, D.
name: Hoek, M.
name: Holler, Y.
name: Hristova, I.
name: Jackson, H. E.
name: Joosten, S.
name: Kaiser, R.
name: Karyan, G.
name: Keri, T.
name: Kinney, E.
name: Kisselev, A.
name: Korotkov, V.
name: Kozlov, V.
name: Kravchenko, P.
name: Krivokhijine, V. G.
name: Lagamba, L.
name: Lapikás, L.
name: Lehmann, I.
name: Lenisa, P.
name: Lorenzon, W.
name: Ma, B. -Q.
name: Mahon, D.
name: Manaenkov, S. I.
name: Mao, Y.
name: Marianski, B.
name: Marukyan, H.
name: Miyachi, Y.
name: Movsisyan, A.
name: Muccifora, V.
name: Murray, M.
name: Mussgiller, A.
name: Naryshkin, Y.
name: Nass, A.
name: Negodaev, M.
name: Nowak, W. -D.
name: Pappalardo, L. L.
name: Perez-Benito, R.
name: Petrosyan, A.
name: Reimer, P. E.
name: Reolon, A. R.
name: Riedl, C.
name: Rith, K.
name: Rosner, G.
name: Rostomyan, A.
name: Rubin, J.
name: Ryckbosch, D.
name: Salomatin, Y.
name: Schäfer, A.
name: Schnell, G.
name: Seitz, B.
name: Shibata, T. -A.
name: Stahl, M.
name: Statera, M.
name: Steffens, E.
name: Steijger, J. J. M.
name: Stinzing, F.
name: Taroian, S.
name: Terkulov, A.
name: Truty, R.
name: Trzcinski, A.
name: Tytgat, M.
name: Van Haarlem, Y.
name: Van Hulse, C.
name: Veretennikov, D.
name: Vikhrov, V.
name: Vilardi, I.
name: Vogel, C.
name: Wang, S.
name: Yaschenko, S.
name: Ye, Z.
name: Yen, S.
name: Zihlmann, B.
name: Zupranski, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An earlier extraction from the HERMES experiment of the polarization-averaged parton distribution of strange quarks in the nucleon has been reevaluated using final data on the multiplicities of charged kaons in semi-inclusive deep-inelastic scattering obtained with a kinematically more comprehensive method of correcting for experimental effects. General features of the distribution are confirmed, but the rise at low x is less pronounced than previously reported.