cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Renormalization group flows and entropy in curved spacetimes
Creators: name: D'ANGELO, EDOARDO
Publisher: name: Università degli studi di Genova
Year: 2024
Subjects: subject: Quantum Field Theory; Quantum gravity; Renormalization group; Operator algebras; Entropy
subject: Quantum Field Theory
subject: Quantum gravity
subject: Renormalization group
subject: Operator algebras
subject: Entropy

description: I discuss the derivation and applications of a non-perturbative Renormalization Group (RG) equation for gauge theories and quantum gravity in Lorentzian spacetimes. A key ingredient to derive the RG equation in Lorentzian spacetimes is the use of a local regulator, acting as an artificial mass for correlation functions. A local regulator is compatible with the unitarity and Lorentz invariance of the theory, and it gives raise to a local RG equation. A Hadamard-type point-splitting regularisation guarantees that the RG equation is finite. The RG equation depends on the choice of a state, a distinctive feature that is not present in the Euclidean case. If the effective average action describing the theory does not contain derivatives higher than second order, and it is local in the fields, an application of the renown Nash-Moser theorem proves that the RG equation for scalar fields admits local, exact solutions. For gauge theories, the symmetries of the theory are controlled by an extended Slavnov-Taylor identity, that can be studied with the cohomology of the Batalin-Vilkovisky operator. Assuming the Local Potential Approximation in the case of an interacting scalar field, in 3 dimensions the RG flow exhibits the well-known Wilson-Fisher fixed point. In 4 dimensions, the flow has no non-trivial fixed point in the vacuum, but it exhibits a novel non-trivial fixed point in the high-temperature limit of a thermal state for the free theory. Moreover, the Bunch-Davies state in de Sitter spacetime also has a non-trivial fixed point in the inflationary regime. Finally, the flow is applied to the case of quantum gravity. Taking into account only state- and background-independent terms, the RG flow exhibits a non-trivial fixed point in the Einstein-Hilbert truncation, providing a mechanism for Asymptotic Safety in Lorentzian quantum gravity. In the second part, I study the relative entropy for a free scalar field propagating over a dynamical, spherically symmetric black hole. Considering the back-reaction of the relative entropy on the black hole horizon, it is possible to write a flux balance equation for the generalised entropy of quantum and gravitational degrees of freedom. Similar considerations lead to a conservation law for the generalised entropy in de Sitter spacetime.
Optimal Maneuvering and Control of Cooperative Vessels within Harbors
Creators: name: Gehrt, Jan-Jöran
name: Zweigel, René
name: Roy, S.
name: Büskens, C.
name: Kurowski, M.
name: Jeinsch, T.
name: Schubert, A.
name: Gluch, M.
name: Simanski, O.
name: Pairet-Garcia, E.
name: Bruhn, W.
name: Diegel, F.
name: Abel, Dirk
Publisher: name: RWTH Aachen University
Year: 2019
Subjects: subject: 530

description: International Maritime and Port Technology and Development Conference, MTEC 2019, Trondheim, Norway, 13 Nov 2019 - 14 Nov 2019; Bristol : IOP Publ. (2019). doi:10.1088/1742-6596/1357/1/012019
description: Published by IOP Publ., Bristol
Chromosome-scale genome assembly and annotation of Huzhang (Reynoutria japonica)
Creators: name: Zhou, Chao
name: Zhang, Yonghong
name: Xu, Qing
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 310509
subject: Genomics
classificationCode: 310508
subject: Genome structure and regulation

description: This study established a high-quality chromosome-scale genome assembly for Reynoutria japonica through an integrative multi-platform sequencing approach.MethodsSample Collection & PreparationSource: Cultivated in Qinba Mountains (Shiyan, Hubei, China).DNA/RNA Extraction: High-molecular-weight DNA from young leaves (modified CTAB method); RNA from five tissues (TruSeq Stranded mRNA kit).Sequencing & AssemblyPlatforms:PacBio Sequel II: 252.45 Gb (~77× coverage).Illumina NovaSeq 6000: 276.14 Gb (~84× coverage; Q20: 96.18%).Hi-C (MGISEQ-2000): 322.36 Gb (~98× coverage).Assembly Pipeline:Canu v2.1.1 for primary contigs → Arrow/Pilon polishing → Hi-C scaffolding (Juicer/3D-DNA).Output: 3.3 Gb genome; scaffold N50: 158.33 Mb; 22 pseudo-chromosomes (99.22% anchored).Whole Genome Shotgun project accession in GenBank：JBLJBX000000000 AnnotationRepeats: RepeatModeler/RepBase (74.79% TEs; LTRs dominant: 47.92%).Genes: BRAKER/MAKER integration → 68,646 protein-coding genes.Non-coding RNAs: tRNAscan-SE/Infernal → 14,788 ncRNAs (miRNAs, rRNAs, snRNAs).
Untitled Item
Creators: name: Santos, Gildenir Carolino
Publisher: name: figshare
Year: 2018
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: Library and Information Studies
subject: FOS: Media and communications
subject: 80706 Librarianship
subject: 80709 Social and Community Informatics

description: Apresentação em forma de treinamento para o público da UNICAMP e externo sobre o funcionamento e resgate histórico do ORCID.
Bethe Ansatz and Quantum Groups: The Light--Cone Approach. II. From RSOS($p+1$) models to $p-$restricted Sine--Gordon Field Theories
Creators: name: Destri, C.
name: de Vega, H. J.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We solve the RSOS($p$) models on the light--cone lattice with fixed boundary conditions by disentangling the type II representations of $SU(2)_q$, at $q=e^{iπ/p}$, from the full SOS spectrum obtained through Algebraic Bethe Ansatz. The rule which realizes the quantum group reduction to the RSOS states is that there must not be {\it singular} roots in the solutions of the Bethe Ansatz equations describing the states with quantum spin $J
description: 33 pages
Platelet Collapse Model of Pulsar Glitches
Creators: name: Morley, P. D.
name: Schmidt, Ivan
Publisher: name: arXiv
Year: 1994
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A platelet collapse model of starquakes is introduced. It displays self-organized criticality with a robust power-law behavior. The simulations indicate a near-constant exponent, whenever scaling is present.
description: Figures available by sending request to Ivan Schmidt: ischmidt@schmidt.fis.utfsm.cl
Bayes Security: A Not So Average Metric
Creators: name: Chatzikokolakis, Konstantinos
name: Cherubin, Giovanni
name: Palamidessi, Catuscia
name: Troncoso, Carmela
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Security system designers favor worst-case security metrics, such as those derived from differential privacy (DP), due to the strong guarantees they provide. On the downside, these guarantees result in a high penalty on the system's performance. In this paper, we study Bayes security, a security metric inspired by the cryptographic advantage. Similarly to DP, Bayes security i) is independent of an adversary's prior knowledge, ii) it captures the worst-case scenario for the two most vulnerable secrets (e.g., data records); and iii) it is easy to compose, facilitating security analyses. Additionally, Bayes security iv) can be consistently estimated in a black-box manner, contrary to DP, which is useful when a formal analysis is not feasible; and v) provides a better utility-security trade-off in high-security regimes because it quantifies the risk for a specific threat model as opposed to threat-agnostic metrics such as DP. We formulate a theory around Bayes security, and we provide a thorough comparison with respect to well-known metrics, identifying the scenarios where Bayes Security is advantageous for designers.
Discovery and characterisation of long-period eclipsing binary stars from Kepler K2 campaigns 1, 2 and 3
Creators: name: Maxted, P. F. L.
name: Hutcheon, R. J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Kepler K2 mission now makes it possible to find and study a wider variety of eclipsing binary stars than has been possible to-date, particularly long-period systems with narrow eclipses. Our aim is to characterise eclipsing binary stars observed by the Kepler K2 mission with orbital periods longer than $P\approx 5.5$ days. The $ellc$ binary star model has been used to determine the geometry of eclipsing binary systems in Kepler K2 campaigns 1, 2 and 3. The nature of the stars in each binary is estimated by comparison to stellar evolution tracks in the effective temperature - mean stellar density plane. 43 eclipsing binary systems have been identified and 40 of these are characterised in some detail. The majority of these systems are found to be late-type dwarf and sub-giant stars with masses in the range 0.6 to 1.4 solar masses. We identify two eclipsing binaries containing red giant stars, including one bright system with total eclipses that is ideal for detailed follow-up observations. The bright B3V-type star HD142883 is found to be an eclipsing binary in a triple star system. We observe a series of frequencies at large multiples of the orbital frequency in BW Aqr that we tentatively identify as tidally induced pulsations in this well-studied eccentric binary system. We find that the faint eclipsing binary EPIC201160323 shows rapid apsidal motion. Rotational modulation signals are observed in 13 eclipsing systems, the majority of which are found to rotate non-synchronously with their orbits. We conclude that the K2 mission is a rich source of data that can be used to find long period eclipsing binary stars. These data combined with follow-up observations can be used to precisely measure the masses and radii of stars for which such fundamental data are currently lacking, e.g., sub-giant stars and slowly-rotating low-mass stars.
description: Accepted for publication in A&A. 35 pages, 11 tables and 18 figures. With correction to mass and log g values for BW Aqr in Table 11
Phase Transition Study of Superconducting Microstructures
Creators: name: Berger, C.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The presented results are part of a feasibility study of superheated superconducting microstructure detectors. The microstructures (dots) were fabricated using thin film patterning techniques with diameters ranging from $50μ$m up to $500μ$m and thickness of $1μ$m. We used arrays and single dots to study the dynamics of the superheating and supercooling phase transitions in a magnetic field parallel to the dot surface. The phase transi- tions were produced by either varying the applied magnetic field strength at a constant temperature or changing the bath temperature at a constant field. Preliminary results on the dynamics of the phase transitions of arrays and single indium dots will be reported.
description: 7pages in LaTex format, five figures available upon request by schmiemann@lhep.unibe.ch, preprint Bu-He 93/5
Massive Orbifold
Creators: name: Cecotti, S.
name: Vafa, C.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study some aspects of 2d supersymmetric sigma models on orbifolds. It turns out that independently of whether the 2d QFT is conformal the operator products of twist operators are non-singular, suggesting that massive (non-conformal) orbifolds also `resolve singularities' just as in the conformal case. Moreover we recover the OPE of twist operators for conformal theories by considering the UV limit of the massive orbifold correlation functions. Alternatively, we can use the OPE of twist fields at the conformal point to derive conditions for the existence of non-singular solutions to special non-linear differential equations (such as Painleve III).
description: 12 pages
title: 01_0017
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Pseudosenegalia Seigler & Ebinger & Riggins & Terra & Miller 2017, gen. nov.
Creators: name: Seigler, David S.
name: Ebinger, John E.
name: Riggins, Chance W.
name: Terra, Vanessa
name: Miller, Joseph T.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Pseudosenegalia

description: II. Pseudosenegalia Seigler & Ebinger, gen. nov. TYPE: Acacia feddeana Harms, Repert. Spec. Nov. Regni Veg. 16: 450. 1920 [≡ Pseudosenegalia feddeana (Harms) Seigler & Ebinger]. Shrubs or small trees, some to 12 m; twigs terete or nearly so, not flexuous; short shoots present; prickles and stipular spines absent. Leaves alternate or clustered on short shoots, bipinnate; stipules small, linear, symmetrical, herbaceous, tardily deciduous to persistent; petioles adaxially grooved, 0.5–13 mm long; petiolar gland usually present, sessile, solitary; rachis adaxially grooved, usually with glands between some pairs of pinnae; pinnae 1 to 7 pairs/leaf, opposite; paraphyllidia absent; leaflets 11 to 26 pairs/ pinna, linear, 1.2–2.9 X 0.4–0.9 mm, 1 vein from the base, glabrous to lightly pubescent, midrib subcentral. Inflorescences a cylindrical spike, 1 to 2 clustered in leaf axils. Flowers bracteate, sessile, actinomorphic, sympetalous, 5-merous, with a basal copular nectiferous disk; stamens 1 0 0 to 1 5 0, distinct, attached along the side of the nectariferous disk, exserted; anthers small, dorsifixed, dehiscing vertically, anther glands absent; ovary with a stipe to 2.1 mm long; style filiform; stigma filiform. Legumes straight to slightly curved, flattened to elliptic in cross section, oblong, eglandular, dehiscing along both sutures; seeds uniseriate, not surrounded by pulp, ovoid to ellipsoid, flattened; pleurogram present or absent. Habitat and distribution. Pseudosenegalia is known to occur in dry scrub and thorn-scrub vegetation between 1300 and 3300 m in Bolivia. TAXONOMIC KEY TO SPECIES OF  PSEUDOSENEGALIA  1. Leaves with a single pair of pinnae............................. P. feddeana (Harms) Seigler & Ebinger 1 '. Leaves with 3 to 7 pairs of pinnae................. P.riograndensis (Atahuachi & L. Rico) Seigler & Ebinger
description: Published as part of Seigler, David S., Ebinger, John E., Riggins, Chance W., Terra, Vanessa & Miller, Joseph T., 2017, Parasenegalia and Pseudosenegalia (Fabaceae): New Genera of the Mimosoideae, pp. 180-205 in Novon 25 on pages 199-200, DOI: 10.3417/2015050, http://zenodo.org/record/2561467
Muon $g-2$, dark matter, and neutrino mass explanations in a modular $A_4$ symmetry
Creators: name: Hutauruk, Parada T. P.
name: Kang, Dong Woo
name: Kim, Jongkuk
name: Okada, Hiroshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study a successful model to explain the muon anomalous magnetic moment originating from Yukawa-type interactions {in a supersymmetric theory}. Thanks to a modular $A_4$ flavor symmetry, any lepton flavor violations that spoil the model are forbidden. We also investigate a predictive radiative seesaw model including a dark matter (DM) candidate. At first, we construct the minimum model to satisfy the neutrino oscillation data and obtain several predictions such as Dirac CP and Majorana phases, the neutrino masses through $χ^2$ analysis. However, the minimum model would not provide our promising DM candidate. Thus, we minimally extend the model and find a good DM candidate. In the extended framework, we show the allowed regions to satisfy the muon anomalous magnetic moment and the observed relic density of dark matter in addition to predictions of the lepton sector.
description: 28 pages, 14 figures, published version
RETURN To an Order of the House for a Return, in detail, of the items as brought to account in the Treasury during the fiscal year 1887-88 under the follwing heads: --Fines and Forfeitures, $10,048.08; Probate Fees, $3,244.93; Sale of Governement Property, $393.35; Reimbursements in aid, $570.75; Interest, $10,976.62; Miscellaneous Receipts, $31,544.05.
Creators: name: British Columbia. Legislative Assembly
Publisher: name: Victoria, BC : Government Printer
Year: 2014

Abstract
The End of Casas Grandes: The Legacy of Charles C. Di Peso Fifty Years after the Joint Casas Grandes Project
Creators: name: Phillips, David A.
Publisher: name: 73rd Annual Meeting of the Society for American Archaeology
Year: 2009
Subjects: subject: Chihuahua (Mexico : State)
valueUri: https://core.tdar.org/browse/geographic-keyword/49578/chihuahua-mexico-state
subject: Casas Grandes
valueUri: https://core.tdar.org/browse/site-name/279/casas-grandes
subject: Town / City
valueUri: https://core.tdar.org/browse/site-type/255/town-city
subject: Domestic Structure or Architectural Complex
valueUri: https://core.tdar.org/browse/site-type/251/domestic-structure-or-architectural-complex
subject: Settlements
valueUri: https://core.tdar.org/browse/site-type/252/settlements
subject: Historic Background Research
valueUri: https://core.tdar.org/browse/investigation-type/18/historic-background-research
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: Charles Di Peso believed that Paquime, the primary center for the Casas Grandes culture, succumbed to an attack in A.D. 1340. He further argued that the culture survived in the Sierra Madre, where it was encountered by early Spanish military adventurers. Other reviews of the data have come to different conclusions. In this essay, I examine and discuss the available chronometric data.
Identifying the odd-frequency superconducting state by a field-induced Josephson effect
Creators: name: Linder, Jacob
name: Yokoyama, Takehito
name: Sudbø, Asle
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Superconducting order parameters that are odd under exchange of time-coordinates of the electrons constituting a Cooper-pair, are potentially of great importance both conceptually and technologically. Recent experiments report that such an odd-frequency superconducting {\it bulk} state may be realized in certain heavy-fermion compounds. While the Josephson current normally only flows between superconductors with the same symmetries with respect to frequency, we demonstrate that an exchange field may induce a current between diffusive even- and odd-frequency superconductors. This suggests a way to identify the possible existence of bulk odd-frequency superconductors.
description: 10 pages, 7 figures. To appear in Physical Review B
World Models
Creators: name: Ha, David
name: Schmidhuber, Jürgen
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We explore building generative neural network models of popular reinforcement learning environments. Our world model can be trained quickly in an unsupervised manner to learn a compressed spatial and temporal representation of the environment. By using features extracted from the world model as inputs to an agent, we can train a very compact and simple policy that can solve the required task. We can even train our agent entirely inside of its own hallucinated dream generated by its world model, and transfer this policy back into the actual environment. An interactive version of this paper is available at https://worldmodels.github.io/
Extrapolated DIscontinuity Tracking for complex 2D shock interactions
Creators: name: Ciallella, Mirco
name: Ricchiuto, Mario
name: Paciorri, Renato
name: Bonfiglioli, Aldo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: A new shock-tracking technique that avoids re-meshing the computational grid around the moving shock-front was recently proposed by the authors (Ciallella et al., 2020). The method combines the unstructured shock-fitting (Paciorri and Bonfiglioli,2009) approach, developed in the last decade by some of the authors, with ideas coming from embedded boundary methods. In particular, second-order extrapolations based on Taylor series expansions are employed to transfer the solution and retain high order of accuracy. This paper describes the basic idea behind the new method and further algorithmic improvements which make the extrapolated Discontinuity Tracking Technique (eDIT) capable of dealing with complex shock-topologies featuring shock-shock and shock-wall interactions occurring in steady problems. This method paves the way to a new class of shock-tracking techniques truly independent on the mesh structure and flow solver. Various test-cases are included to prove the potential of the method, demonstrate the key features of the methodology, and thoroughly evaluate several technical aspects related to the extrapolation from/onto the shock, and their impact on accuracy, and conservation.
Probing Early Clustering with Lyman-Alpha Absorption Lines Beyond the Quasar Redshift
Creators: name: Loeb, Abraham
name: Eisenstein, Daniel J.
Publisher: name: arXiv
Year: 1994
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Groups and clusters of galaxies hosting a quasar can be found through the detection of Lyman-alpha absorption lines beyond the quasar redshift. The effect occurs whenever the distortion to the redshift distribution of Lyman-alpha clouds induced by the cluster potential extends beyond the proximity effect of the quasar. Based on CDM cosmological models for the evolution of structure, we predict the probability for finding lines beyond the quasar redshift ($z_{abs}>z_Q$) under the assumption that the physical properties of Lyman-alpha clouds are not affected by flows on large scales (1 Mpc and more) in the quasi-linear regime. If quasars randomly sample the underlying galaxy distribution, the expected number of lines with $z_{abs}>z_Q$ per quasar can be as high as 0.25[(dN/dz)/350] at $z=2$, where $dN/dz$ is the number of Lyman-alpha lines per unit redshift far from the quasar. The probability is enhanced if quasars typically reside in small groups of galaxies. A statistical excess of Lyman-alpha lines is expected near very dim quasars or around metal absorption systems. Due to clustering, the standard approach to the proximity effect overestimates the ionizing background flux at high redshifts by up to a factor of 3. This result weakens the discrepancy between the deduced background flux and the contribution from known populations of quasars.
description: 28 pages, uuencoded compressed Postscript, 5 figures included. Final version, accepted to the Astrophysical Journal (7/20/95 issue)
Reduction of three-band model for copper oxides to single-band generalized t~-~J model
Creators: name: Belinicher, V. I.
name: Chernyshev, A. L.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: A three-band model for copper oxides in the region of parameters where the second hole on the copper has energy close to the first hole on the oxygen is considered. The exact solution for one hole on a ferromagnetic background of the ordered copper spins is obtained. A general procedure for transformation of the primary Hamiltonian to the Hamiltonian of singlet and triplet excitations is proposed. Reduction of the singlet-triplet Hamiltonian to the single-band Hamiltonian of the generalized t~-~J model is performed. A comparison of the solution for the generalized t~-~J model on a ferromagnetic background with the exact solution shows a very good agreement.
description: 20 pages (LATEX)
On the impacts of working memory training on executive functioning
Creators: name: Salminen, Tiina
name: Strobach, Tilo
name: Schubert, Torsten
Publisher: name: Humboldt-Universität zu Berlin
Year: 2012
Subjects: subject: working memory training
subject: transfer
subject: executive functions
subject: 610 Medizin und Gesundheit

description: Recent studies have reported improvements in a variety of cognitive functions following sole working memory (WM) training. In spite of the emergence of several successful training paradigms, the scope of transfer effects has remained mixed. This is most likely due to the heterogeneity of cognitive functions that have been measured and tasks that have been applied. In the present study, we approached this issue systematically by investigating transfer effects from WM training to different aspects of executive functioning. Our training task was a demanding WM task that requires simultaneous performance of a visual and an auditory n-back task, while the transfer tasks tapped WM updating, coordination of the performance of multiple simultaneous tasks (i.e., dual-tasks) and sequential tasks (i.e., task switching), and the temporal distribution of attentional processing. Additionally, we examined whether WM training improves reasoning abilities; a hypothesis that has so far gained mixed support. Following training, participants showed improvements in the trained task as well as in the transfer WM updating task. As for the other executive functions, trained participants improved in a task switching situation and in attentional processing. There was no transfer to the dual-task situation or to reasoning skills. These results, therefore, confirm previous findings that WM can be trained, and additionally, they show that the training effects can generalize to various other tasks tapping on executive functions.
Lifespan Functors and Natural Dualities in Persistent Homology
Creators: name: Bauer, Ulrich
name: Schmahl, Maximilian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Topology (math.AT)
subject: Computational Geometry (cs.CG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 55N31, 55U10, 16G20, 18G05

description: We introduce lifespan functors, which are endofunctors on the category of persistence modules that filter out intervals from barcodes according to their boundedness properties. They can be used to classify injective and projective objects in the category of barcodes and the category of pointwise finite-dimensional persistence modules. They also naturally appear in duality results for absolute and relative versions of persistent (co)homology, generalizing previous results in terms of barcodes. Due to their functoriality, we can apply these results to morphisms in persistent homology that are induced by morphisms between filtrations. This lays the groundwork for the efficient computation of barcodes for images, kernels, and cokernels of such morphisms.
description: 32 pages, 1 figure
Extremal Numbers of Hypergraph Suspensions of Even Cycles
Creators: name: Mukherjee, Sayan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C65, 05C38

description: For fixed $k\ge 2$, determining the order of magnitude of the number of edges in an $n$-vertex bipartite graph not containing $C_{2k}$, the cycle of length $2k$, is a long-standing open problem. We consider an extension of this problem to triple systems. In particular, we prove that the maximum number of triples in an $n$-vertex triple system which does not contain a $C_6$ in the link of any vertex, has order of magnitude $n^{7/3}$. Additionally, we construct new families of dense $C_6$-free bipartite graphs with $n$ vertices and $n^{4/3}$ edges in order of magnitude.
description: Accepted version at European Journal of Combinatorics. 17 pages, 0 figures, 2 tables
Applications of W-algebras to BF theories, QCD and 4D Gravity
Creators: name: Lano, Ralph
name: Rodgers, V. G. J.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We are able to show that BF theories naturally emerge from the coadjoint orbits of $W_2$ and $w_\infty$ algebras which includes a Kac-Moody sector. Since QCD strings can be identified with a BF theory, we are able to show a relationship between the orbits and monopole-string solutions of QCD. Furthermore, we observe that when 4D gravitation is cast into a BF form through the use of Ashtekar variables, we are able to get order $\hbar$ contributions to gravity which can be associated with the $W_2$ anomaly. We comment on the relationship to gravitational monopoles.
description: 14 pages
Self-gravitating axially symmetric disks in general-relativistic rotation
Creators: name: Karkowski, Janusz
name: Kulczycki, Wojciech
name: Mach, Patryk
name: Malec, Edward
name: Odrzywolek, Andrzej
name: Pirog, Michal
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We integrate numerically axially symmetric stationary Einstein equations describing self-gravitating disks around spinless black holes. The numerical scheme is based on a method developed by Shibata, but contains important new ingredients. We derive a new general-relativistic Keplerian rotation law for self-gravitating disks around spinning black holes. Former results concerning rotation around spin-less black holes emerge in the limit of a vanishing spin parameter. These rotation curves might be used for the description of rotating stars, after appropriate modification around the symmetry axis. They can be applied to the description of compact torus--black hole configurations, including active galactic nuclei or products of coalescences of two neutron stars.
description: Misprints corrected, this version matches the published paper
Supplementary information from Admixture of hybrid swarms of native and introduced lizards in cities is determined by the cityscape structure and invasion history
Creators: name: Beninde, Joscha
name: Feldmeier, Stephan
name: Veith, Michael
name: Hochkirch, Axel
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology

description: Introductions of non-native lineages increase opportunities for hybridization. Non-native lineages of the common wall lizard, Podarcis muralis, are frequently introduced in cities where they hybridize with native populations. We aimed at unravelling the invasion history and admixture of native and non-native wall lizards in four German cities using citywide, comprehensive sampling. We barcoded and genotyped 826 lizards and tested if gene flow in populations composed of admixed native and introduced lineages is facilitated by similar environmental factors as in native populations by comparing fine-scale landscape genetic patterns. In cities with non-native lineages, lizards commonly occurred in numerous clusters of hybrid swarms, which showed variable lineage composition, consisting of up to four distinct evolutionary lineages. Hybrid swarms held vast genetic diversity and showed recent admixture with other hybrid swarms. Landscape genetic analyses showed differential effects of cityscape structures across cities, but identified water bodies as strong barriers to gene flow in both native and admixed populations. By contrast, railway tracks facilitated gene flow of admixed populations only. Our study shows that cities represent unique settings for hybridization, caused by multiple introductions of non-native taxa. Cityscape structure and invasion histories of cities will determine future evolutionary pathways at these novel hybrid zones.
Archaeological Monitoring at Sunland Avenue, Phoenix, Maricopa County, Arizona
Creators: name: Howard, Alexandra
Publisher: name: EcoPlan Associates, Inc.
Year: 2015
Subjects: subject: Salt River
valueUri: https://core.tdar.org/browse/geographic-keyword/127/salt-river
subject: Arizona (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/335/arizona-state-territory
subject: Sonoran Desert
valueUri: https://core.tdar.org/browse/geographic-keyword/2772/sonoran-desert
subject: Gila River
valueUri: https://core.tdar.org/browse/geographic-keyword/3958/gila-river
subject: Phoenix, AZ
valueUri: https://core.tdar.org/browse/geographic-keyword/76695/phoenix-az
subject: Lower Colorado River Valley
valueUri: https://core.tdar.org/browse/geographic-keyword/79658/lower-colorado-river-valley
subject: Phoenix Basin
valueUri: https://core.tdar.org/browse/geographic-keyword/27/phoenix-basin
subject: Maricopa (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3900/maricopa-county
subject: Historic
valueUri: https://core.tdar.org/browse/temporal-keyword/5728/historic
subject: Prehistoric
valueUri: https://core.tdar.org/browse/temporal-keyword/53/prehistoric
subject: Hohokam
valueUri: https://core.tdar.org/browse/culture-keyword/21/hohokam
subject: Huhugam
valueUri: https://core.tdar.org/browse/culture-keyword/8166/huhugam
subject: Archaeological Monitoring
valueUri: https://core.tdar.org/browse/other-keyword/893/archaeological-monitoring
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview
subject: Historic Background Research
valueUri: https://core.tdar.org/browse/investigation-type/18/historic-background-research
subject: Ground Disturbance Monitoring
valueUri: https://core.tdar.org/browse/investigation-type/20/ground-disturbance-monitoring
subject: Records Search / Inventory Checking
valueUri: https://core.tdar.org/browse/investigation-type/8/records-search-inventory-checking

description: At the request of NSD and PGM, EcoPlan completed an archaeological monitoring program in association with manual excavations conducted to install irrigation, remove a stump, install vegetation, and clear the house stem wall at Sunland Avenue, within 50 feet of the boundary of a reported prehistoric canal in Phoenix, Maricopa County, Arizona. No archaeological materials were identified. No further archaeological work is necessary at this time. Additional cultural resource investigations (such as monitoring, testing, or data recovery) might be warranted.
Concealed Object Detection
Creators: name: Fan, Deng-Ping
name: Ji, Ge-Peng
name: Cheng, Ming-Ming
name: Shao, Ling
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We present the first systematic study on concealed object detection (COD), which aims to identify objects that are "perfectly" embedded in their background. The high intrinsic similarities between the concealed objects and their background make COD far more challenging than traditional object detection/segmentation. To better understand this task, we collect a large-scale dataset, called COD10K, which consists of 10,000 images covering concealed objects in diverse real-world scenarios from 78 object categories. Further, we provide rich annotations including object categories, object boundaries, challenging attributes, object-level labels, and instance-level annotations. Our COD10K is the largest COD dataset to date, with the richest annotations, which enables comprehensive concealed object understanding and can even be used to help progress several other vision tasks, such as detection, segmentation, classification, etc. Motivated by how animals hunt in the wild, we also design a simple but strong baseline for COD, termed the Search Identification Network (SINet). Without any bells and whistles, SINet outperforms 12 cutting-edge baselines on all datasets tested, making them robust, general architectures that could serve as catalysts for future research in COD. Finally, we provide some interesting findings and highlight several potential applications and future directions. To spark research in this new field, our code, dataset, and online demo are available on our project page: http://mmcheng.net/cod.
description: 17 pages, 27 figures, Code: https://github.com/GewelsJI/SINet-V2
Decomposition of noncommutative U(1) gauge potential
Creators: name: Liu, Ziyu
name: Lee, Xiguo
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the decomposition of noncommutative gauge potential $\hat{A_{i}}$, and find it has inner structure, namely, $\hat{A_{i}}$ can be decomposed in two parts $\hat{b_{i}}$ and $\hat{a_{i}}$, here $\hat{b_{i}}$ satisfies gauge transformations while $\hat{a_{i}}$ satisfies adjoint transformations, so dose the Seiberg-Witten mapping of noncommutative U(1) gauge potential. By means of Seiberg-Witten mapping, we construct a mapping of unit vector field between noncommutative space and ordinary space, and find the noncommutative U(1) gauge potential and its gauge field tenser can be expressed in terms of the unit vector field. When the unit vector field has non singularity point, noncommutative gauge potential and gauge field tenser will equal to ordinary gauge potential and gauge field tenser.
description: 9 pages
Survey of Casas Grandes Region
Creators: name: The Amerind Foundation, Inc.
Publisher: name: The Amerind Foundation, Inc.
Year: 1957
Subjects: subject: Chihuahua (Mexico : State)
valueUri: https://core.tdar.org/browse/geographic-keyword/49578/chihuahua-mexico-state
subject: Casas Grandes
valueUri: https://core.tdar.org/browse/site-name/279/casas-grandes
subject: Town / City
valueUri: https://core.tdar.org/browse/site-type/255/town-city
subject: Domestic Structure or Architectural Complex
valueUri: https://core.tdar.org/browse/site-type/251/domestic-structure-or-architectural-complex
subject: Settlements
valueUri: https://core.tdar.org/browse/site-type/252/settlements
subject: Heritage Management
valueUri: https://core.tdar.org/browse/investigation-type/24/heritage-management

description: The purpose of this trip is to meet Dr. Walter Taylor and Dr. Ignacio Bernal in regard to the excavation contract with Mexico and to check road distances and conditions from the museum to Juarez, El Sueco and Casas Grandes.
Absence of superconductivity in iron polyhydrides at high pressures
Creators: name: Heil, Christoph
name: Bachelet, Giovanni B.
name: Boeri, Lilia
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recently, C. M. Pépin \textit{et al.} [Science \textbf{357}, 382 (2017)] reported the formation of several new iron polyhydrides FeH$_x$ at pressures in the megabar range, and spotted FeH$_5$, which forms above 130 GPa, as a potential high-\tc \ superconductor, because of an alleged layer of dense metallic hydrogen. Shortly after, two studies by A.~Majumdar \textit{et al.} [Phys. Rev. B \textbf{96}, 201107 (2017)] and A.~G.~Kvashnin \textit{et al.} [J. Phys. Chem. C \textbf{122}, 4731 (2018)] based on {\em ab initio} Migdal-Eliashberg theory seemed to independently confirm such a conjecture. We conversely find, on the same theoretical-numerical basis, that neither FeH$_5$ nor its precursor, FeH$_3$, shows any conventional superconductivity and explain why this is the case. We also show that superconductivity may be attained by transition-metal polyhydrides in the FeH$_3$ structure type by adding more electrons to partially fill one of the Fe--H hybrid bands (as, e.g., in NiH$_3$). Critical temperatures, however, will remain low because the $d$--metal bonding, and not the metallic hydrogen, dominates the behavior of electrons and phonons involved in the superconducting pairing in these compounds.
description: 8 pages, 8 figures
SPA$^\mathrm{H}$M: the Spectrum of Approximated Hamiltonian Matrices representations
Creators: name: Fabrizio, Alberto
name: Briling, Ksenia R.
name: Corminboeuf, Clemence
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Physics-inspired molecular representations are the cornerstone of similarity-based learning applied to solve chemical problems. Despite their conceptual and mathematical diversity, this class of descriptors shares a common underlying philosophy: they all rely on the molecular information that determines the form of the electronic Schrödinger equation. Existing representations take the most varied forms, from non-linear functions of atom types and positions to atom densities and potential, up to complex quantum chemical objects directly injected into the ML architecture. In this work, we present the Spectrum of Approximated Hamiltonian Matrices (SPA$^\mathrm{H}$M) as an alternative pathway to construct quantum machine learning representations through leveraging the foundation of the electronic Schrödinger equation itself: the electronic Hamiltonian. As the Hamiltonian encodes all quantum chemical information at once, SPA$^\mathrm{H}$M representations not only distinguish different molecules and conformations, but also different spin, charge, and electronic states. As a proof of concept, we focus here on efficient SPA$^\mathrm{H}$M representations built from the eigenvalues of a hierarchy of well-established and readily-evaluated "guess" Hamiltonians. These SPA$^\mathrm{H}$M representations are particularly compact and efficient for kernel evaluation and their complexity is independent of the number of different atom types in the database.
description: 9 pages + SI (8 pages)
Project EUROAGEISM H2020- FIP7 program- pilot evaluation of potentially inappropriate drug prescribing in Czech seniors in acute care (in Czech). XXIth Sympozium on Clinical Pharmacy René Macha 2019, November 22-23; Mikulov, Czech Republic
Creators: name: Fialová, D.
name: Gajdošová, P.
name: Kubíková, V.
name: Gruberová, N.
name: Zelinková, A.
name: Masaryková, P.
name: Brkič, J.
name: Apostoli, P.
name: Kostřiba, J.
name: Reissigová J
Publisher: name: Zenodo
Year: 2019
Subjects: aged
potentially inappropriate prescribing
ageism
Czech republic
cardiovascular drugs
acute care

description: Poster presentation describes aims and objectives of the EUROAGEISM FIP7 H2020 project and pilot results from the Czech data collection in Czech seniors in ambulatory care and acute care (Sept 2018- January2019) which summarize outputs of prescription of cardiovascular potentially inappropriate medications in seniors and aspects of ageism. (poster presentation in Czech language).
Low-energy limit of the three-band model for electrons in a CuO$_{2}$ plane
Creators: name: Belinicher, V. I.
name: Chernyshev, A. L.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The three-band model with the O-O direct hopping near to unit filling is considered. We present the general procedure of reduction of this model to the low-energy limit. At unit filling the three-band model in the charge-transfer limit is reduced to the Heisenberg model and we calculate the superexchange constant. For the case of the small electron doping the three-band model is reduced to the $t-J$ model and we calculate electron hopping parameters at the nearest and next neighbors. We derive the structure of corrections to the $t-J$ model and calculate their magnitude. The values of the hopping parameters for electron- and hole-doping differ approximately at 40 %.
description: 10 pp. (LATEX)
There must be an angel? Local financial markets, business angels and the financing of innovative start-ups
Creators: name: Grilli, Luca
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: This study addresses the question of whether business angels can fill the gap left by venture capitalists and banks in the financing of innovative start-ups in regions where there is a relatively thin financial supply of bank loans and venture capital investments. The empirical analysis, based on approximately 2000 Italian ventures, highlights the fact that innovative start-ups located in weak local financial ecosystems show a relatively low probability of getting business angel financing. In these areas, angel investing is unlikely to represent a viable and effective informal solution to alleviate regional financing gaps towards innovative start-ups left by more institutionalized financial intermediaries.