cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Long-Range Rapidity Correlations in Heavy Ion Collisions at Strong Coupling from AdS/CFT
Creators: name: Grigoryan, Hovhannes R.
name: Kovchegov, Yuri V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We use AdS/CFT correspondence to study two-particle correlations in heavy ion collisions at strong coupling. Modeling the colliding heavy ions by shock waves on the gravity side, we observe that at early times after the collision there are long-range rapidity correlations present in the two-point functions for the glueball and the energy-momentum tensor operators. We estimate rapidity correlations at later times by assuming that the evolution of the system is governed by ideal Bjorken hydrodynamics, and find that glueball correlations in this state are suppressed at large rapidity intervals, suggesting that late-time medium dynamics can not "wash out" the long-range rapidity correlations that were formed at early times. These results may provide an insight on the nature of the "ridge" correlations observed in heavy ion collision experiments at RHIC and LHC, and in proton-proton collisions at LHC.
description: 32 pages, 2 figures; v2: typos corrected, references added
Modern History and past development of Thessaloniki
Creators: name: Axiotis, Efstratios
name: Widowsky, Anne
name: Zarei, Amirhossein
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2023
Subjects: subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: Thessaloniki is a significant crossroad between Europe and the near and middle east and has had a complex and fascinating history throughout the centuries. The city was founded in 315 before Christ and has experienced various epochs. The social and urban diversity of Thessaloniki reflects the different influences of these epochs, ranging from Hellenistic ruins to Byzantine churches and Ottoman buildings, making Thessaloniki a melting pot of different cultures and influences. The influence of Greek culture and identity has persisted over time, but traces of other cultures have remained visible in the city. This paper examines the changes in the urban structure of the city of Thessaloniki over time and analyzes the impact of events such as fires, population changes, and reforms on the city. By taking a comprehensive look at historical events and developments, a better understanding of urban development and the significance of Thessaloniki as a cultural and historical center is achieved.
Untersuchung der Entwicklung von gamma-ähnlichen Protonschauern mit den hadronischen Wechselwirkungsmodellen EPOS-LHC und QGSJETII-04
Creators: name: Maut, Christoph
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020

description: Bachelorarbeit, Humboldt-Universität zu Berlin, 2020; 48 pp. (2020). = Bachelorarbeit, Humboldt-Universität zu Berlin, 2020
description: Hadronische Wechselwirkungsmodelle spielen eine zentrale Rolle in der Teilchenphysik, weil sie unter anderem zum Vergleich experimenteller Daten von durch Cherenkov-Teleskopen detektierten Luftschauern genutzt werden, um Eigenschaften des primären Luftschauerteilchens abzuleiten. In dieser Arbeit werden die beiden hadronischen Wechselwirkungsmodelle EPOS-LHC und QGSJETII-04 für gamma-ähnliche Luftschauer in deren ersten Wechselwirkung durch Monte Carlo Simulationen untersucht. Es wurde ein Unterschied der beiden Modelle von bis zu mehr als einer Größenordnung für Protonluftschauer mit einem hohen elektromagnetischen Schaueranteil von über 90 % der Primärenergie festgestellt. Die Ursache, weshalb EPOS-LHC mehr Luftschauer mit hohen elektromagnetischen Anteilen erzeugt, liegt in der Produktionsrate neutraler Pionen und η-Mesonen begründet. Zudem besitzen diese Teilchen im Mittel größere Impulse, wenn sie durch EPOS-LHC erzeugt werden, als durch QGSJETII-04. Des Weiteren zeigt sich, dass veröffentlichte Daten des Experimentes Large Hadron Collider forward eine mögliche Referenz für den Vergleich der hadronischen Wechselwirkungsmodelle darstellen können.
More life in Vardaris
Creators: name: Borchardt, Marzena
name: Duarte, Gabriela
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2023
Subjects: subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: This chapter analyzes the quality of public space in the case study of Vardaris, a district in Thessaloniki, Greece. Children are an important indicator of the quality of life and living conditions, which is why they are particularly taken into account in the analysis of public space (Daboline 2019). The analysis of Vardaris shows that there are possibilities for improvement in the design of children‘s facilities such as schools and kindergartens to enhance the quality of living conditions. Drawing inspiration from the program „Mais Vida nos Morros“ (More life in the Hills) in Recife, Brazil. In summary, this chapter discusses the comparison of challenges faced by Vardaris and Recife, introduces a public policy program focused on urban innovation and resilience with citizen participation, and proposes specific ideas for improving the Vardaris area, including colorful aesthetics and the creation of a green pathway.
An experimental and numerical study of water jet cleaning process
Creators: name: Guha, Anirban
name: Barron, Ronald M.
name: Balachandar, Ram
Publisher: name: arXiv
Year: 2010
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper, we have experimentally, numerically and theoretically investigated the water jet cleaning process. Very high speed water jets (~80-200 m/s) are typically used in such cleaning operations. These jets diffuse in the surrounding atmosphere by the process of air entrainment and this contributes to the spreading of the jet and subsequent decay of pressure. Estimation of this pressure decay and subsequent placement of the cleaning object is of paramount importance in manufacturing and material processing industries. Also, the pressure distribution on the cleaning surface needs to be assessed in order to understand and optimize the material removal process. In an industrial setting, experimental study is performed to formulate the pressure characteristics. It has shown that the decay of stagnation pressure along the axial direction is linear. It also revealed that no cleaning is possible at radial locations greater than 1.68D from the centerline. Numerical simulations are performed to capture the process of air entrainment in the jet and the subsequent pressure characteristics. The simulation results are found to correctly predict the experimental data. Moreover, a theoretical model for evaluating the optimal and critical stand-off distances has also been derived. Based on our results, we found that the optimal stand-off distance in cleaning operations is ~5D and the jet looses its cleaning ability at axial distances greater than ~26D.
description: This paper has been Accepted in the Journal of Materials Processing Technology
EquiCity: Creating a Livable Future for All
Creators: name: Schacht, Jelle
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2023
Subjects: subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: This analysis delves into the economic and housing situation in Thessaloniki, particularly focusing on the Vardaris and Xyrokrini districts. It discusses the relationship between urban development, economic resources, and resident housing. The article mentions the role of private investors in shaping gentrification processes and advocates for a balance between economic growth and preserving the neighborhood‘s character. Thessaloniki‘s economic landscape, driven by tourism, port activities, industry, and education, sets the backdrop for the discussion. The Vardaris and Xyrokrini districts, despite their central location, face economic challenges, manifested in dilapidated infrastructure and high unemployment rates. The potential of upcoming urban developments, including the metro system and growing tourism, presents opportunities for revitalization. The housing fabric in Thessaloniki, characterized by Polykatoikia structures, is contrasted with the more organized social housing in the mentioned districts. The article highlights the need for interventions to enhance living conditions, such as improving security and regulating Airbnb usage. Finally, the study proposes regulations to strike a balance between economic growth and housing affordability while fostering a sustainable future for these neighborhoods.
Non-left-orderable double branched coverings
Creators: name: Ito, Tetsuya
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 57M05, 57M12, 57M27

description: We develop a method to show the fundamental group of the double branched covering of a link is not left-orderable by introducing the notion of the coarse presentation. As in the usual group presentations, a coarse presentation is given by a set of generators and relations, but inequalities are allowed as relations. By using coarse presentation, we give a family of links whose double branched covering has the non-left-orderable fundamental group. Our family of links includes many known examples and new examples.
description: 20 Pages, 11 figures; Errors in Theorem 3 and 4 are corrected
Synthesis, structural and physical properties of $δ'$-FeSe$_{1-x}$
Creators: name: de Souza, Mariano
name: Haghighirad, Amir-Abbas
name: Tutsch, Ulrich
name: Assmus, Wolf
name: Lang, Michael
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on synthesis, structural characterization, resistivity, magnetic and thermal expansion measurements on the as yet unexplored $δ'$-phase of FeSe$_{1-x}$, here synthesized under ambient- (AP) and high-pressure (HP) conditions. We show that in contrast to $β$-FeSe$_{1-x}$, monophasic superconducting $δ'$-FeSe$_{1-x}$ can be obtained in off-stoichiometric samples with excess Fe atoms preferentially residing in the van der Waals gap between the FeSe layers. The AP $δ'$-FeSe$_{1-x}$ sample studied here ($T_c$ $\simeq$ 8.5\,K) possesses an unprecedented residual resistivity ratio RRR $\simeq$ 16. Thermal expansion data reveal a small feature around $\sim$90\,K, which resembles the anomaly observed at the structural and magnetic transitions for other Fe-based superconductors, suggesting that some kind of "magnetic state" is formed also in FeSe. %indicative of a fluctuating magnetic ordering. For HP samples (RRR $\simeq$ 3), the disorder within the FeSe layers is enhanced through the introduction of vacancies, the saturated magnetic moment of Fe is reduced and only spurious superconductivity is observed.
description: 7 pages, 8 figures, published version
Data from: Effect of a three-week treatment with glucagon-like peptide 1 receptor agonists on vasoactive hormones in euvolemic participants
Creators: name: Vukajlovic, Tanja
Publisher: name: figshare
Year: 2021
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: To investigate the effect of a three-week treatment with the GLP-1 RA dulaglutide on vasoactive hormones, i.e., renin, angiotensin II, aldosterone, MP-proANP, urinary sodium excretion as well as clinical parameters in euvolemic participants.
Letter from Gunnar Myrdal to Frederick P. Keppel (copy), February 13, 1940
Creators: name: Myrdal, Gunnar, 1898-1987
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Gunnar Myrdal clarifies two budget increases from the latest progress report on the Carnegie-Myrdal Study.
An Implicit Solvent Model for Biomolecular Monte Carlo Simulations
Creators: name: Brieg, Martin
Publisher: name: Karlsruhe
Year: 2014
Subjects: Biophysik
Simulation
Monte Carlo
Implizites Lösungsmittel
Proteine

description: Implizite Lösungsmittelmodelle in biomolekularen Simulationen beschreiben die physikalischen Wechselwirkungen zwischen den Biomolekülen, z. B. Proteine, und deren Umgebung. In dieser Dissertation wurden neue Modelle entwickelt, die eine genauere und effizientere Beschreibung dieser Wechselwirkungen erlauben. Eines dieser Modelle wurde erfolgreich angewandt, um den komplexen Faltungsprozess einen kleinen Proteins mit Hilfe von Monte-Carlo-Methoden zu studieren.
Multiscale simulations in organic electronics: Applications to polymer wrapping of single-walled carbon nanotubes, bulk charge mobilities and organic-organic interfaces
Creators: name: Poschlad, Angela
Publisher: name: Karlsruhe
Year: 2014
Subjects: molecular dynamics
polymer wrapping
organic interface
charge mobility
density functional theory

description: The thesis deals with the simulation of organic molecular systems on multi scales. It covers the development of a coarse-grained model for polymer wrapping of single-walled carbon nanotubes (SWCNTs) which provides good predictions of the polymer's selectivity towards different types of SWCNTs. Furthermore, the bulk charge mobility is analyzed for different amorphous and crystalline materials from first principle.
Liquidity in Bond Markets
Creators: name: Schuster, Philipp
Publisher: name: Karlsruhe
Year: 2014
Subjects: bond liquidity
term structure of liquidity premia
transaction costs
bid-ask spread
financial crisis

description: This thesis studies how to best measure liquidity in bond markets and how illiquidity influences bond prices and yields. We answer the first question by empirically comparing the performance of all commonly employed liquidity measures. In the second part, we analyze liquidity related yield differences and how they behave in different economic regimes. Finally, the third part presents an equilibrium framework to study the influence of illiquidity on bond prices from a theoretical perspective.
Excited State Quantum Couplings and Optical Switching of an Artificial Molecule
Creators: name: Müller, K.
name: Reithmaier, G.
name: Clark, E. C.
name: Jovanov, V.
name: Bichler, M.
name: Krenner, H. J.
name: Betz, M.
name: Abstreiter, G.
name: Finley, J. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We optically probe the spectrum of ground and excited state transitions of an individual, electrically tunable self-assembled quantum dot molecule. Photocurrent absorption measurements show that the spatially direct neutral exciton transitions in the upper and lower dots are energetically separated by only ~2 meV. Excited state transitions ~8-16 meV to higher energy exhibit pronounced anticrossings as the electric field is tuned due to the formation of hybridized electron states. We show that the observed excited state transitions occur between these hybridized electronic states and different hole states in the upper dot. By simultaneously pumping two different excited states with two laser fields we demonstrate a strong (88% on-off contrast) laser induced switching of the optical response. The results represent an electrically tunable, discrete coupled quantum system with a conditional optical response.
Sensorimotor Learning for an Artificial Body Schema on Humanoid Robots
Creators: name: Ulbrich, Stefan
Publisher: name: Karlsruhe
Year: 2014

description: The body schema in humans is a cerebral representation of the current state of the own body. Its plasticity and adaptability allows tool use and the adaption to an ever-changing body. This thesis is about representations for sensorimotor learning on humanoid robots that enable efficient learning for an artificial body schema. Two novel techniques are proposed: The Kinematic Bézier Maps for the representation of kinematic and dynamic models and a decomposition method for accelerating learning.
Analysis of strong decays of the charmed mesons D(2550), D(2600), D(2750) and D(2760)
Creators: name: Wang, Zhi-Gang
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we study the strong decays of the newly observed charmed mesons $D(2550)$, $D(2600)$, $D(2750)$ and $D(2760)$ with the heavy quark effective theory in the leading order approximation, and tentatively identify the $(D(2550),D(2600))$ as the $2S$ doublet $(0^-,1^-)$ and the $(D(2750),D(2760))$ as the $1D$ doublet $(2^-,3^-)$, respectively. The identification of the $D(2750)$ and $D(2760)$ as the same particle with $J^P=3^-$ is disfavored.
description: 10 pages, revised version
Steuerung der Garantie- und Kulanzprozessqualität im Service der Automobilindustrie - ein kennzahlenbasierter Ansatz
Creators: name: Lehnert, Markus
Publisher: name: Karlsruhe
Year: 2014
Subjects: Garantiecontrolling
Serviceprozess
After Sales
Servicezufriedenheit
Garantie und Kulanz

description: Entstehungsumfeld der Arbeit ist der Serviceprozess zu Garantie und Kulanz (GuK) in der Automobilindustrie. Fehlende Transparenz aus Sicht der Hersteller zur GuK-Prozessqualität in der Handelsorganisation erschwert die Steuerbarkeit dieser. Um die Servicezufriedenheit und die GuK-Kosten positiv beeinflussen zu können, ist diese Steuerung erforderlich. Hierzu wird ein Prozesssteuerungsmodell mit Fokus auf ein Prozess- sowie ein Kostenkennzahlensystem zu den GuK-Prozessen im Service entwickelt.
Universality and properties of neutron star type I critical collapses
Creators: name: Wan, Mew-Bing
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the neutron star axisymmetric critical solution previously found in the numerical studies of neutron star mergers. Using neutron star-like initial data and performing similar merger simulations, we demonstrate that the solution is indeed a semi-attractor on the threshold plane separating the basin of a neutron star and the basin of a black hole in the solution space of the Einstein equations. In order to explore the extent of the attraction basin of the neutron star semiattractor, we construct initial data phase spaces for these neutron star-like initial data. From these phase spaces, we also observe several interesting dynamical scenarios where the merged object is supported from prompt collapse. The properties of the critical index of the solution, in particular, its dependence on conserved quantities, are then studied. From the study, it is found that a family of neutron star semi-attractors exist that can be classified by both their rest masses and ADM masses.
description: 13 pages, 12 figures, 1 new reference added
Boundary correlation numbers in one matrix model
Creators: name: Ishiki, Goro
name: Rim, Chaiho
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We introduce one matrix model coupled to multi-flavor vectors. The two-flavor vector model is demonstrated to reproduce the two-point correlation numbers of boundary primary fields of two dimensional (2, 2p+1) minimal Liouville gravity on disk, generalizing the loop operator (resolvent) description. The model can properly describe non-trivial boundary conditions for the matter Cardy state as well as for the Liouville field. From this we propose that the n-flavor vector model will be suited for producing the boundary correlation numbers with n different boundary conditions on disk.
description: 16 pages, 3 figures, add elaboration on matter Cardy state and references
Letter from Gunnar Myrdal to Walter Francis White, January 16, 1940
Creators: name: Myrdal, Gunnar, 1898-1987
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Letter regarding Enrique Alférez's sculpture "Soldier in Rain," AKA "American Skeleton in the Closet," later referenced in Chapter 2, Section 4 of AN AMERICAN DILEMMA.
Lastmanagement mittels dynamischer Strompreissignale bei Haushaltskunden
Creators: name: Hillemacher, Lutz
Publisher: name: Karlsruhe
Year: 2014
Subjects: Lastmanagement
Demand Side Management
Demand Response
Strompreissignale

description: In der Arbeit wird untersucht, in welchem Ausmaß eine Lastverschiebung bei Haushaltskunden durch eine anreizbasierten Lastbeeinflussung die durch die erneuerbaren Energien hervorgerufenen Volatilitäten ausgleichen kann. Es wird ein Modellansatz vorgestellt, der die Bestimmung von Strompreissignalen für eine anreizbasierte Lastbeeinflussung und von Regelsignalen ermöglicht und es werden Einflussfaktoren auf das Lastverschiebeverhalten analysiert.
Embedding DBI inflation in scalar-tensor theory
Creators: name: van de Bruck, Carsten
name: Mota, David F.
name: Weller, Joel M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Dirac-Born-Infeld (DBI) action has been widely studied as an interesting example of a model of k-inflation in which the sound speed of the cosmological perturbations differs from unity. In this article we consider a scalar-tensor theory in which the matter component is a field with a DBI action. Transforming to the Einstein frame, we explore the effect of the resulting coupling on the background dynamics of the fields and the first-order perturbations. We find that the coupling forces the scalar field into the minimum of its effective potential. While the additional scalar field contributes significantly to the energy density during inflation, the dynamics are determined by the DBI field, which has the interesting effect of increasing the number of efolds of inflation and decreasing the boost factor of the DBI field. Focusing on this case, we show, with the benefit of numerical examples, that the power spectrum of the primordial perturbations is determined by the behaviour of the perturbations of the modified DBI field.
description: Typos corrected, references added. Minor changes and clarifications to match published version
title: Оценка динамики злокачественных новообразований щитовидной железы на примере Новгородской области
Creators: name: Лейфер, Олеся
name: Роговцов, Роман
name: Иванов, Егор
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Рак щитовидной железы занимает лидирующую позицию среди всех онкологических патологий эндокринной системы. В последние годы в Российской Федерации наблюдается прирост заболеваемости злокачественными новообразованиями щитовидной железы. В данной статье рассмотрены основные вопросы канцерогенеза
злокачественных новообразований щитовидной железы, их морфологии и эпидемиологии на примере Новгородской области. Среди всех опухолей наиболее часто выявляют папиллярную аденокарциному. Было установлено, что в большей степени риску подвержены люди после 50 лет. Актуальность этой проблемы заключается, по большей мере, в постоянном безостановочном росте данной патологии не только в Российской Федерации, но и во всем мире.
Astrophysical Fluid Dynamics via Direct Statistical Simulation
Creators: name: Tobias, S. M.
name: Dagon, K.
name: Marston, J. B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In this paper we introduce the concept of Direct Statistical Simulation (DSS) for astrophysical flows. This technique may be appropriate for problems in astrophysical fluids where the instantaneous dynamics of the flows are of secondary importance to their statistical properties. We give examples of such problems including mixing and transport in planets, stars and disks. The method is described for a general set of evolution equations, before we consider the specific case of a spectral method optimised for problems on a spherical surface. The method is illustrated for the simplest non-trivial example of hydrodynamics and MHD on a rotating spherical surface. We then discuss possible extensions of the method both in terms of computational methods and the range of astrophysical problems that are of interest.
description: 26 pages, 11 figures, added clarifying remarks and references, and corrected typos. This version is accepted for publication in The Astrophysical Journal
Supplementary Materials on "Estimates of Missed Opportunity for Hypertension Screening of Adults Aged 45 Years and Older in India"
Creators: name: Mohanty, Sanjay
name: Upadhyay, Ashish Kumar
name: Shekhar, Prashant
name: Kämpfen, Fabrice
name: O’Donnell, Owen
name: Maurer, Jürgen
Publisher: name: figshare
Year: 2021
Subjects: subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences
subject: Health Care
subject: 140208 Health Economics
subject: FOS: Economics and business

description: Missed Opportunities for Hypertension Screening of Adults Aged 45 Years and Older in India: a Nationally Representative Cross-Sectional Study
These tables and figures are the supplementary materials of a paper entitled "Missed Opportunities for Hypertension Screening of Adults Aged 45 Years and Older in India: a Nationally Representative Cross-Sectional Study" submitted to WHO Bulletin August 2021
Authors:Sanjay K. Mohanty, Ashish Kumar Upadhyay, Prashant Shekhar, Fabrice Kämpfen, Owen O’Donnell, Jürgen Maurer
Extended self-energy functional approach for strongly-correlated lattice bosons in the superfluid phase
Creators: name: Arrigoni, Enrico
name: Knap, Michael
name: von der Linden, Wolfgang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Among the various numerical techniques to study the physics of strongly correlated quantum many-body systems, the self-energy functional approach (SFA) has become increasingly important. In its previous form, however, SFA is not applicable to Bose-Einstein condensation or superfluidity. In this paper we show how to overcome this shortcoming. To this end we identify an appropriate quantity, which we term $D$, that represents the correlation correction of the condensate order parameter, as it does the self-energy for the Green's function. An appropriate functional is derived, which is stationary at the exact physical realizations of $D$ and of the self-energy. Its derivation is based on a functional-integral representation of the grand potential followed by an appropriate sequence of Legendre transformations. The approach is not perturbative and therefore applicable to a wide range of models with local interactions. We show that the variational cluster approach based on the extended self-energy functional is equivalent to the "pseudoparticle" approach introduced in Phys. Rev. B, 83, 134507 (2011). We present results for the superfluid density in the two-dimensional Bose-Hubbard model, which show a remarkable agreement with those of Quantum-Monte-Carlo calculations.
description: 1 additional figure showing the region close to the tip of the Mott lobe, minor changes in the text
Non-Perturbative Entangling Gates between Distant Qubits using Uniform Cold Atom Chains
Creators: name: Banchi, Leonardo
name: Bayat, Abolfazl
name: Verrucchi, Paola
name: Bose, Sougato
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a new fast scalable method for achieving a two-qubit entangling gate between arbitrary distant qubits in a network by exploiting dispersionless propagation in uniform chains. This is achieved dynamically by switching on a strong interaction between the qubits and a bus formed by a non-engineered chain of interacting qubits. The quality of the gate scales very efficiently with qubit separations. Surprisingly, a sudden switching of the coupling is not necessary and our gate mechanism is not altered by a possibly gradual switching. The bus is also naturally reset to its initial state making the complex resetting procedure unnecessary after each application of the gate. Moreover, we propose a possible experimental realization in cold atoms trapped in optical lattices and near field Fresnel trapping potentials, which are both accessible to current technology.
description: 4 pages, 3 figures. Comments are welcome
Vison states and confinement transitions of Z2 spin liquids on the kagome lattice
Creators: name: Huh, Yejin
name: Punk, Matthias
name: Sachdev, Subir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a projective symmetry group (PSG) analysis of the spinless excitations of Z2 spin liquids on the kagome lattice. In the simplest case, vortices carrying Z2 magnetic flux ('visons') are shown to transform under the 48 element group GL(2, Z3). Alternative exchange couplings can also lead to a second case with visons transforming under 288 element group GL(2, Z3) \times D3. We study the quantum phase transition in which visons condense into confining states with valence bond solid order. The critical field theories and confining states are classified using the vison PSGs.
description: 25 pages, 13 figures
Non-vanishing of Dirichlet L-functions at the central point
Creators: name: Bui, H. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11M26

description: Let $χ$ be a primitive Dirichlet character modulo $q$ and $L(s,χ)$ be the Dirichlet L-function associated to $χ$. Using a new two-piece mollifier we show that $L(\tfrac{1}{2},χ)\ne0$ for at least 34% of the characters in the family.
description: 19 pages
Discontinuous Hall coefficient at the quantum critical point in YbRh2Si2
Creators: name: Friedemann, Sven
name: Oeschler, Niels
name: Wirth, Steffen
name: Krellner, Cornelius
name: Geibel, Christoph
name: Steglich, Frank
name: Paschen, Silke
name: Kirchner, Stefan
name: Si, Qimiao
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: YbRh2Si2 is a model system for quantum criticality. Particularly, Hall effect measurements helped identify the unconventional nature of its quantum critical point. Here, we present a high-resolution study of the Hall effect and magnetoresistivity on samples of different quality. We find a robust crossover on top of a sample dependent linear background contribution. Our detailed analysis provides a complete characterization of the crossover in terms of its position, width, and height. Importantly, we find in the extrapolation to zero temperature a discontinuity of the Hall coefficient occurring at the quantum critical point for all samples. Particularly, the height of the jump in the Hall coefficient remains finite in the limit of zero temperature. Hence, our data solidify the conclusion of a collapsing Fermi surface. Finally, we contrast our results to the smooth Hall-effect evolution seen in Chromium, the prototype system for a spin-density-wave quantum critical point.
description: minor revisions, accepted for publication in Journal of Physics: Condensed Matter
Static and dynamic shear viscosity of a single layer complex plasma
Creators: name: Hartmann, Peter
name: Sándor, Máté Csaba
name: Kovács, Anikó
name: Donkó, Zoltán
Publisher: name: arXiv
Year: 2011
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We measured the static and dynamic (complex) shear viscosity of a single layer complex plasma by applying, respectively, a stationary and a periodically modulated shear stress induced by the light pressure of manipulating laser beams. Under static conditions the shear viscosity reproduced the numerically predicted shear rate dependence, the so called shear-thinning effect. Under oscillating shear both the magnitude and the ratio of the dissipative and elastic contributions to the complex viscosity show strong frequency dependence. Accompanying molecular dynamics simulations explain and support the experimental observations.
description: accepted by Phys. Rev. E
Hadi al-Alawi's Contemporary Historicization of the Musha' and Communism
Creators: name: Mari, Faiq
Publisher: name: Zenodo
Year: 2021
Subjects: Hadi al Alawi, commons, communism, musha', musha'iyya, liqahiyya

description: This paper is a conceptual attempt to understand Hadi al-Alawi's theorization of communism and the commons, or musha'. It is based on a close reading of al-Alawi's texts on these subjects, but offers limited contextualization. ×
On the Spontaneous Phase-Locking of Slow-Time Civilizations and the Emotional Filtration of Resonant Intelligence
Creators: name: Bostick, Devin
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Structured Resonance
subject: Artificial Intelligence
subject: Recursive Computation
subject: Phase-Locked Cognition
subject: Entropy Compression
subject: Nonlinear Dynamics
subject: Gravitational Information Retention
subject: Cognitive Architecture
subject: Systems Neuroscience
subject: Temporal Coherence Zones

description: Main Paper w/Empirical Tests

Abstract

This paper proposes a resonance-first cosmological model in which ultra-slow-time civilizations arise within gravitationally compressed regions—particularly near or within black holes—by leveraging the stability of phase coherence rather than the tempo of signal exchange. We reject temporally biased assumptions in intelligence detection (e.g., SETI) and replace them with a structured resonance framework. Intelligence is defined as coherence per decohered unit time. Black holes are reframed as coherence-preserving chambers wherein recursive structuring permits non-entropic cognition. The model emerged during an emotionally lucid jog under mild THC influence, introducing a novel methodological lens: emotional filtration as a dynamic coherence sensor. Ramanujan’s intuitive insights are reframed as phase-locked cognition events within the prime-structured lattice of mathematical emergence. Religions are interpreted as Fourier-degraded cultural approximations of a universal resonance attractor. RIC (Resonance Intelligence Core) is introduced as an architecture that integrates emotional phase feedback with multi-domain coherence alignment, forming the substrate for resonance-based intelligence.
Why I Keep Coming Back to Crazy Time Live on Pin-Up!
Creators: name: Asanbekov, Amantai
Publisher: name: Zenodo
Year: 2025

description: Hey everyone! Wanted to share something fun I’ve been into lately — Crazy Time Live on Pin-Up. I stumbled into it just looking for something light and different, and honestly, it’s become my favorite way to chill after a long day. Right after I logged in to crazy time live, I knew this wasn’t just a typical spin-and-win setup. It felt like I was part of a fast-paced, colorful game show — and that’s exactly the kind of vibe I needed.

What makes this platform special is the variety of game styles. You’ve got classic number picks, bonus rounds like Cash Hunt, Pachinko, and Coin Flip, and a bunch of other live-action experiences that keep things from ever getting boring. Everything is designed with personality — the graphics are vivid, the sound effects pop, and each bonus round feels like its own mini game.

I’ve also had great luck with the bonus system. There are plenty of promotions that pop up, including daily offers, surprise rewards, and event-based boosts that really spice things up. And they’re not hard to find — they’re built right into the gameplay, which makes the experience feel even more rewarding.

What I really like is how smooth and secure the platform feels. The interface is easy to understand, and everything works fast — no lags, no delays, just clean, responsive controls. I’ve used different payment methods without a single issue, and all transactions are safe and encrypted, which is a huge plus.

Also, the atmosphere is one of the best parts. It’s not just the bright visuals and live hosting — it’s the way the whole thing feels like a community. The energy is always up, and even when you're not winning, the game keeps you entertained with its humor and interaction.

It’s perfect whether I’ve got 10 minutes or an hour to spare. I can jump in, play a few rounds, and walk away smiling — and that’s really what it’s all about. No pressure, just pure fun.

If you’re looking for something lively, engaging, and full of surprises, I definitely recommend giving Crazy Time Live on Pin-Up a try. Just follow the link in my profile and see where the wheel takes you.
Define, measure, repeat : an application of the iterative measurement-theory link to distinct positive emotions
Creators: name: Weidman, Aaron C.
Publisher: name: University of British Columbia
Year: 2017

description: Social and personality psychologists strive toward theory advancement—or the derivation of truthful and applicable statements about human behavior—while often neglecting the methods that support those theoretical conclusions. In Chapter 1 of this dissertation, I discuss a two-stage process outlining how researchers’ measurement decisions are inextricably linked to the theoretical conclusions drawn from individual studies. Stage 1 involves formulating an initial definition and measurement tool for a construct, and Stage 2 involves placing this construct within a nomological network of other constructs. Stage 2 is typically followed by iteration back to Stage 1, when the construct is re-formulated based on the findings from Stage 2. In Chapters 2 and 3, I use this two-stage process as a lens through which to analyze individual constructs of humility and happiness, describing research that constitutes a second iteration through Stage 1 of the measurement-theory cycle. In Chapter 2, I propose a revised definition of humility, showing that humility consists of two dimensions (appreciative and self-abasing humility), whereas prior formulations have measured only one dimension mirroring appreciative humility. In Chapter 3, I propose a revised definition of happiness in the context of discretionary spending on experiential and material purchases, demonstrating that explicitly measuring momentary happiness portrays material things in a more favorable light than has prior work which has measured afterglow happiness. In Chapter 4, I use the two-stage process as a lens through which to analyze the field of subjectively experienced distinct positive emotions, describing research that constitutes a second iteration through Stage 1 of the measurement-theory cycle and a second foray into Stage 2. Specifically, I construct bottom-up definitions and measurement tools for each positive emotion currently studied in the literature based on lay experience, and present the interrelations among these emotions. In Chapter 5, I reflect on lessons learned by comparing a wide range of literatures through the lens of the measurement-theory cycle, and I outline an agenda for the field of distinct positive emotions, which would build on the work presented in Chapter 4 and progress toward the ultimate goal of constructing a universal taxonomy of basic positive emotions.
Cascades on a class of clustered random networks
Creators: name: Hackett, Adam
name: Melnik, Sergey
name: Gleeson, James P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present an analytical approach to determining the expected cascade size in a broad range of dynamical models on the class of random networks with arbitrary degree distribution and nonzero clustering introduced in [M.E.J. Newman, Phys. Rev. Lett. 103, 058701 (2009)]. A condition for the existence of global cascades is derived as well as a general criterion which determines whether increasing the level of clustering will increase, or decrease, the expected cascade size. Applications, examples of which are provided, include site percolation, bond percolation, and Watts' threshold model; in all cases analytical results give excellent agreement with numerical simulations.
description: 10 pages
Discrete gauge symmetries in D-brane models
Creators: name: Berasaluce-González, Mikel
name: Ibáñez, Luis E.
name: Soler, Pablo
name: Uranga, Angel M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In particle physics model building discrete symmetries are often invoked to forbid unwanted or dangerous couplings. A classical example is the R-parity of the MSSM, which guarantees the absence of dimension four baryon- and lepton-number violating operators. Although phenomenologically useful, these discrete symmetries are, in the context of field theory, poorly motivated at a more fundamental level. Moreover, discrete {\em global} symmetries are expected to be violated in consistent couplings to quantum gravity, while their {\em gauged} versions are expected to actually exist. In this paper we study discrete gauge symmetries in brane models in string theory, and argue that they are fairly generic in this framework. In particular we study the appearance of discrete gauge symmetries in (MS)SM brane constructions in string theory, and show that a few discrete ${Z_N}$ gauge symmetries, including R-parity and {\it baryon triality}, appear naturally as remnants of continuous U(1) gauge symmetries with Stückelberg $N(B\wedge F)$ couplings. Interestingly, they correspond to the simplest anomaly-free discrete symmetries of the MSSM as classified in the early 90's. We provide a number of examples based on type IIA intersecting brane constructions with a (MS)SM spectrum. We also study the appearance of discrete generalizations of R-parity in unified SU(5) type IIA orientifolds and local F-theory SU(5) GUTs.
description: 46 pages, v2, minor changes, references added
Meaning in late life: A scoping review
Creators: name: Vissers, Julie
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences
subject: Nursing
subject: FOS: Health sciences
subject: Mental and Social Health
subject: Psychology
subject: FOS: Psychology
subject: Geriatric Nursing
subject: Developmental Psychology
subject: meaning in life
subject: scoping review
subject: older adults
subject: late life

description: This is an updated registration to exclude an philosophical database and anthropological database and include one new philosophical database. This updated registration gives argumentation for these changes .
Meaning in late life: A scoping review
Creators: name: Vissers, Julie
Publisher: name: Open Science Framework
Year: 2021
Subjects: subject: Developmental Psychology
subject: Social and Behavioral Sciences
subject: Medicine and Health Sciences
subject: Mental and Social Health
subject: Geriatric Nursing
subject: Nursing
subject: FOS: Health sciences
subject: Psychology
subject: FOS: Psychology
subject: scoping review; meaning in life; late life; older adults

description: In this scoping review, we focus on the conceptualization of meaning in late life and used quantitative and/or qualitative methodologies to investigate meaning in life in the older population (aged 70 or older).
Catastrophic senescence and semelparity in the Penna aging model
Creators: name: Pinol, Chrysline Margus
name: Banzon, Ronald
Publisher: name: arXiv
Year: 2010
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The catastrophic senescence of the Pacific salmon is among the initial tests used to validate the Penna aging model. Based on the mutation accumulation theory, the sudden decrease in fitness following reproduction may be solely attributed to the semelparity of the species. In this work, we report other consequences of mutation accumulation. Contrary to earlier findings, such dramatic manifestation of aging depends not only on the choice of breeding strategy but also on the value of the reproduction age, R, and the mutation threshold, T. Senescence is catastrophic when $T \leq R$. As the organism's tolerance for harmful genetic mutations increases, the aging process becomes more gradual. We observe senescence that is threshold dependent whenever T>R. That is, the sudden drop in survival rate occurs at age equal to the mutation threshold value.
The relationship between community need and 30-day readmission in diabetic patients after coronary artery bypass graft surgery
Creators: name: Sutton, Qiana
Publisher: name: No Publisher Supplied
Year: 2019

description: Short-term hospital readmissions have been directly linked to escalating healthcare costs. Coronary artery bypass graft (CABG) surgery has been identified as one of the most commonly performed procedures with a persistently elevated readmission rate despite known risk factors. Comorbid condition, diabetes mellitus, has been found to further increase the risks of readmission in the patient who underwent the CABG procedure. To date, the effects of community healthcare access needs have received little attention as a possible link to the persistently elevated short-term readmission rate in the diabetic patient after the CABG procedure. Therefore, this retrospective, quantitative study sought to explore the relationship between community healthcare access needs and 30-day hospital readmission rates in diabetic patients after Coronary Artery Bypass Graft Surgery.Patient demographics (age, sex, race/ethnicity, employment status, marital status, health insurance, English language as primary language, housing status and high school graduate) and the community need index (CNI) score were examined. CNI score is the average of five barrier condition scores (employment, education, insurance, language, and housing) for each community based on zip code. The results of the study showed a lack of utility of the CNI score with the major findings: disabled diabetic patients were two times more likely to be readmitted than the non-disabled diabetic patient after CABG procedure regardless of community healthcare access needs.
Distributional Tensor Space Model of Natural Language Semantics
Creators: name: Giesbrecht, Eugenie
Publisher: name: Karlsruhe
Year: 2014
Subjects: distributional semantics
natural language processing
semantic space model
compositional matrix space model
text mining

description: We propose a novel Distributional Tensor Space Model of natural language semantics employing 3d order tensors that accounts for order dependent word contexts and assigns to words characteristic matrices such that semantic composition can be realized in a linguistically and cognitively plausible way. The proposed model achieves state-of-the-art results for important tasks of linguistic semantics by using a relatively small text corpus and without any sophisticated preprocessing.