cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Statistical Mechanics of Logarithmic REM: Duality, Freezing and Extreme Value Statistics of $1/f$ Noises generated by Gaussian Free Fields
Creators: name: Fyodorov, Yan V
name: Doussal, Pierre Le
name: Rosso, Alberto
Publisher: name: arXiv
Year: 2009
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We compute the distribution of the partition functions for a class of one-dimensional Random Energy Models (REM) with logarithmically correlated random potential, above and at the glass transition temperature. The random potential sequences represent various versions of the 1/f noise generated by sampling the two-dimensional Gaussian Free Field (2dGFF) along various planar curves. Our method extends the recent analysis of Fyodorov Bouchaud from the circular case to an interval and is based on an analytical continuation of the Selberg integral. In particular, we unveil a {\it duality relation} satisfied by the suitable generating function of free energy cumulants in the high-temperature phase. It reinforces the freezing scenario hypothesis for that generating function, from which we derive the distribution of extrema for the 2dGFF on the $[0,1]$ interval. We provide numerical checks of the circular and the interval case and discuss universality and various extensions. Relevance to the distribution of length of a segment in Liouville quantum gravity is noted.
description: 25 pages, 12 figures Published version. Misprint corrected, references and note added
Intellectual Property Law - Newsletter (September 2024)
Creators: name: Naovina Development of Intellectual Property and Research Foundation, India
Publisher: name: Naovina Development of Intellectual Property and Research Foundation
Year: 2024
Subjects: Digital Copyrights
IP Law
Artificial Intelligence
Blockchain
Naovina Development of Intellectual Property and Research Foundation
IP Law September 2024

description: The September 2024 edition of the Intellectual Property Law Newsletter, your trusted source for the latest in Intellectual Property (IP) developments. This edition is packed with insights, case studies, and expert analysis that will keep you updated on key trends, legislative changes and landmark rulings in the field of IP law.

The Centre for Development of Intellectual Property and Research (CDIPR) is a premier institution dedicated to Intellectual Property Rights (IPRs). Operating under the Naovina Development of Intellectual Property and Research Foundation as a registered Non-Governmental Organisation (NGO), CDIPR is dedicated to promoting and protecting Intellectual Property Rights (IPRs) within India, thereby fostering a conducive environment for innovation and creativity. In today's global landscape, where intellectual property serves as a cornerstone for economic growth, technological advancement and cultural development, CDIPR plays a pivotal role in driving forward-thinking policies, research and education. We are a community, Connecting 2200+ Members & 12,300+ Global Academicians on Intellectual Property Rights. Please visit our website (https://cdipr.icchr.in) for more details.

Stay tuned for future editions of our newsletter, where we continue to explore the ever-evolving world of Intellectual Property law with comprehensive research and expert commentary.

Naovina Development of Intellectual Property and Research FoundationAdvancing Knowledge, Protecting Innovation
Weighted Dickey-Fuller Processes for Detecting Stationarity
Creators: name: Steland, Ansgar
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 60F17, 62L10, 62E20, 62P20

description: Aiming at monitoring a time series to detect stationarity as soon as possible, we introduce monitoring procedures based on kernel-weighted sequential Dickey-Fuller (DF) processes, and related stopping times, which may be called weighted Dickey-Fuller control charts. Under rather weak assumptions, (functional) central limit theorems are established under the unit root null hypothesis and local-to-unity alternatives. For gen- eral dependent and heterogeneous innovation sequences the limit processes depend on a nuisance parameter. In this case of practical interest, one can use estimated control limits obtained from the estimated asymptotic law. Another easy-to-use approach is to transform the DF processes to obtain limit laws which are invariant with respect to the nuisance pa- rameter. We provide asymptotic theory for both approaches and compare their statistical behavior in finite samples by simulation.
Nonequilibrium Green's functions approach to strongly correlated few-electron quantum dots
Creators: name: Balzer, K.
name: Bonitz, M.
name: van Leeuwen, R.
name: Dahlen, N. E.
name: Stan, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The effect of electron-electron scattering on the equilibrium properties of few-electron quantum dots is investigated by means of nonequilibrium Green's functions theory. The ground and equilibrium state is self-consistently computed from the Matsubara (imaginary time) Green's function for the spatially inhomogeneous quantum dot system whose constituent charge carriers are treated as spin-polarized. To include correlations, the Dyson equation is solved, starting from a Hartree-Fock reference state, within a conserving (second order) self-energy approximation where direct and exchange contributions to the electron-electron interaction are included on the same footing. We present results for the zero and finite temperature charge carrier density, the orbital-resolved distribution functions and the self-consistent total energies and spectral functions for isotropic, two-dimensional parabolic confinement as well as for the limit of large anisotropy--quasi-one-dimensional entrapment. For the considered quantum dots with N=2, 3 and 6 electrons, the analysis comprises the crossover from Fermi gas/liquid (at large carrier density) to Wigner molecule or crystal behavior (in the low-density limit).
Fannie Mae's National Housing Survey Monthly Home Purchase Sentiment Index (HPSI) and Key Indicators - October, 2020 (a subset of the complete monthly Fannie Mae National Housing Survey)
Creators: name: Foundation, Fannie Mae
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Economy on right/wrong track (1); personal financial situation (1); good/bad time to buy a house (1); good/bad time to sell a house (1); home price changes (3); rental price changes (3); mortgage interest rate changes (1); ability to obtain a home mortgage today (1); current homeownership status (1); renting vs. buying a home in the future (1); concern about unemployment (1); change in income (1).
XMM-Newton and Suzaku analysis of the Fe K complex in the Seyfert 1 galaxy Mrk 509
Creators: name: Ponti, G.
name: Cappi, M.
name: Vignali, C.
name: Miniutti, G.
name: Tombesi, F.
name: Dadina, M.
name: Fabian, A. C.
name: Grandi, P.
name: Kaastra, J.
name: Petrucci, P. O.
name: Bianchi, S.
name: Matt, G.
name: Maraschi, L.
name: Malaguti, G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on partially overlapping XMM-Newton (~260 ks) and Suzaku (~100 ks) observations of the iron K band in the nearby, bright Seyfert 1 galaxy Mrk 509. The source shows a resolved neutral Fe K line, most probably produced in the outer part of the accretion disc. Moreover, the source shows further emission blue-ward of the 6.4 keV line due to ionized material. This emission is well reproduced by a broad line produced in the accretion disc, while it cannot be easily described by scattering or emission from photo-ionized gas at rest. The summed spectrum of all XMM-Newton observations shows the presence of a narrow absorption line at 7.3 keV produced by highly ionized outflowing material. A spectral variability study of the XMM-Newton data shows an indication for an excess of variability at 6.6-6.7 keV. These variations may be produced in the red wing of the broad ionized line or by variation of a further absorption structure. The Suzaku data indicate that the neutral Fe Kalpha line intensity is consistent with being constant on long timescales (of a few years) and they also confirm as most likely the interpretation of the excess blueshifted emission in terms of a broad ionized Fe line. The average Suzaku spectrum differs from the XMM-Newton one for the disappearance of the 7.3 keV absorption line and around 6.7 keV, where the XMM-Newton data alone suggested variability.
description: MNRAS in press
Loop quantum cosmology of Bianchi type II models
Creators: name: Ashtekar, Abhay
name: Wilson-Ewing, Edward
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The improved dynamics of loop quantum cosmology is extended to include the Bianchi type II model. Because these space-times admit both anisotropies and non-zero spatial curvature, certain technical difficulties arise over and above those encountered in the analysis of the (anisotropic but spatially flat) Bianchi type I space-times, and of the (spatially curved but isotropic) k=+/-1 models. We address these and show that the big-bang singularity is resolved in the same precise sense as in the recent analysis of the Bianchi I model. Bianchi II space-times are of special interest to quantum cosmology because of the expected behavior of the gravitational field near generic space-like singularities in classical general relativity.
description: 26 pages
MetaDocencia en Slack
Creators: name: Buede, Julián
name: Ascenzi, Laura
name: Black, Melissa
name: Alonso, Mónica
name: Pendino, Romina
name: López, Sabrina
Publisher: name: Zenodo
Year: 2023
Subjects: Comunidad
Social Media
Community Building
Latinoamérica

description: En este post presentamos novedades sobre el uso de Slack para nuestra comunidad.
Beryllium abundances and the formation of the halo and the thick disk
Creators: name: Smiljanic, R.
name: Pasquini, L.
name: Bonifacio, P.
name: Galli, D.
name: Barbuy, B.
name: Gratton, R.
name: Randich, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The single stable isotope of beryllium is a pure product of cosmic-ray spallation in the ISM. Assuming that the cosmic-rays are globally transported across the Galaxy, the beryllium production should be a widespread process and its abundance should be roughly homogeneous in the early-Galaxy at a given time. Thus, it could be useful as a tracer of time. In an investigation of the use of Be as a cosmochronometer and of its evolution in the Galaxy, we found evidence that in a log(Be/H) vs. [alpha/Fe] diagram the halo stars separate into two components. One is consistent with predictions of evolutionary models while the other is chemically indistinguishable from the thick-disk stars. This is interpreted as a difference in the star formation history of the two components and suggests that the local halo is not a single uniform population where a clear age-metallicity relation can be defined. We also found evidence that the star formation rate was lower in the outer regions of the thick disk, pointing towards an inside-out formation.
description: 6 pages, 5 figures, To appear in the Proceedings of IAU Symp. 268 - Light Elements in the Universe (C. Charbonnel, M. Tosi, F. Primas, C. Chiappini, eds)
Rewolucja rosyjska Spuścizna "Implementacje strategii" zmiany
Creators: name: Jach, Anna
Publisher: name: figshare
Year: 2021
Subjects: subject: 160699 Political Science not elsewhere classified
subject: FOS: Political science

description: A. Jach (red.), Rewolucja rosyjska. Spuścizna. „Implementacje strategii” zmiany, Wydawnictwo Księgarnia Akademicka, Kraków 2017; seria wydawnicza Rosja. Wczoraj, dziś, jutro. Polityka - kultura – religia - gospodarka, red. J. Diec, A. Jach, M. Kuryłowicz, t. 21, ss. 235.
Model for the inverse isotope effect of FeAs-based superconductors in the $π$-phase-shifted pairing state
Creators: name: Choi, Han-Yong
name: Yun, Jae Hyun
name: Bang, Yunkyu
name: Lee, Hyun C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The isotope effects for Fe based superconductors are considered by including the phonon and magnetic fluctuations within the two band Eliashberg theory. We show that the recently observed inverse isotope effects of Fe, $α_{Fe} \approx -0.18 \pm 0.03 $,\cite{Shirage0903.3515} as well as the large positive isotope exponent ($α\approx 0.35$) can naturally arise for the magnetically induced sign revered s-wave pairing state within reasonable parameter range. Either experimental report can not be discarded from the present analysis based on the parameter values they require. The inverse and positive isotope effects mean, respectively, the interband and intraband dominant eletron-phonon interaction. We first make our points based on the analytic result from the square well potential model and present explicit numerical calculations of the two band Eliashberg theory.
description: 4 pages and 2 figures
A combined R-matrix eigenstate basis set and finite-differences propagation method for the time-dependent Schr\"{od}dinger equation: the one-electron case
Creators: name: Nikolopoulos, L. A. A.
name: Parker, J. S.
name: Taylor, K. T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In this work we present the theoretical framework for the solution of the time-dependent Schrödinger equation (TDSE) of atomic and molecular systems under strong electromagnetic fields with the configuration space of the electron's coordinates separated over two regions, that is regions $I$ and $II$. In region $I$ the solution of the TDSE is obtained by an R-matrix basis set representation of the time-dependent wavefunction. In region $II$ a grid representation of the wavefunction is considered and propagation in space and time is obtained through the finite-differences method. It appears this is the first time a combination of basis set and grid methods has been put forward for tackling multi-region time-dependent problems. In both regions, a high-order explicit scheme is employed for the time propagation. While, in a purely hydrogenic system no approximation is involved due to this separation, in multi-electron systems the validity and the usefulness of the present method relies on the basic assumption of R-matrix theory, namely that beyond a certain distance (encompassing region $I$) a single ejected electron is distinguishable from the other electrons of the multi-electron system and evolves there (region II) effectively as a one-electron system. The method is developed in detail for single active electron systems and applied to the exemplar case of the hydrogen atom in an intense laser field.
description: 13 pages, 6 figures, submitted
Residential segregation and cultural dissemination: An Axelrod-Schelling model
Creators: name: Gracia-Lazaro, C.
name: Lafuerza, L. F.
name: Floria, L. M.
name: Moreno, Y.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In the Axelrod's model of cultural dissemination, we consider mobility of cultural agents through the introduction of a density of empty sites and the possibility that agents in a dissimilar neighborhood can move to them if their mean cultural similarity with the neighborhood is below some threshold. While for low values of the density of empty sites the mobility enhances the convergence to a global culture, for high enough values of it the dynamics can lead to the coexistence of disconnected domains of different cultures. In this regime, the increase of initial cultural diversity paradoxically increases the convergence to a dominant culture. Further increase of diversity leads to fragmentation of the dominant culture into domains, forever changing in shape and number, as an effect of the never ending eroding activity of cultural minorities.
Exploring New Physics with the Optical Dump at LUXE and Prospects for Future Facilities
Creators: name: Schulthess, Ivo
Publisher: name: Zenodo
Year: 2024

description: The planned LUXE experiment at DESY in Hamburg (Germany) stands at the forefront of the investigation into strong-field quantum electrodynamics with high precision. The interaction between electrons or photons and a high-intensity laser generates new electrons, positrons, and photons. The phenomena under examination include non-linear Compton scattering, non-linear Breit-Wheeler pair production, and the trident process. LUXE's primary objective is to measure the dependence of the matter-antimatter pair production rate on laser intensity. Furthermore, the Compton photons generated in the primary interaction offer an avenue for exploring new physics through a beam-dump-type experiment. Such a concept can also be applied to future colliders.
Galactic fountains and gas accretion
Creators: name: Marinacci, F.
name: Binney, J.
name: Fraternali, F.
name: Nipoti, C.
name: Ciotti, L.
name: Londrillo, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Star-forming disc galaxies such as the Milky Way need to accrete $\gsim$ 1 $M_{\odot}$ of gas each year to sustain their star formation. This gas accretion is likely to come from the cooling of the hot corona, however it is still not clear how this process can take place. We present simulations supporting the idea that this cooling and the subsequent accretion are caused by the passage of cold galactic-fountain clouds through the hot corona. The Kelvin-Helmholtz instability strips gas from these clouds and the stripped gas causes coronal gas to condense in the cloud's wake. For likely parameters of the Galactic corona and of typical fountain clouds we obtain a global accretion rate of the order of that required to feed the star formation.
description: 2 pages, 1 figure, to appear in "Hunting for the Dark: The Hidden Side of Galaxy Formation", Malta, 19-23 Oct. 2009, eds. V.P. Debattista & C.C. Popescu, AIP Conf. Ser
title:  The European Green Deal and the New Deal
Creators: name: Harris, Morgan Eleanor
Publisher: name: Roma Tre University
publisherIdentifier: https://ror.org/05vf0dg29
publisherIdentifierScheme: ROR
Year: 2024

description: The 2019 European Green Deal and the New Deal share a title: but are there more substantive connections between these two ‘deals’? By recalling the significance of the New Deal in the historical context of the United States in the 1930’s, this study explores the ways in which both reforms seek to transform the constitutive values of the state and of the marketplace. Both deals also challenge economic orthodoxy and widely-held cultural values that shift blame onto individuals to distract from systemic failures. These parallels – as well as some key differences – can help us to better understand the significance of what Green Deal has, and has not, achieved.
description: Roma Tre Law Review – 01/2024
Improving the transport system of India (illustrated by use of passenger transportation) through implementation of transport and infrastructure solutions by Unitsky String Technologies
Creators: name: Anatoly Unitsky
name: Alexey Klimkov*
name: Ekaterina Vlasovets
name: Olga Kulik
Publisher: name: Zenodo
Year: 2024
Subjects: Transport system, passenger transportation, transport and infrastructure solutions, uST, socio-economic impact, GDP growth, ecological problems.

description: Abstract: Despite the growth of the Indian economy at the present stage, there are a number of significant challenges in the country`s transport sector. This research, based on a review of innovative Unitsky String technology advantages, presents 4 conceptual directions for integrating solutions into India's existing transport infrastructure in terms of passenger transportation. Additionally, it outlines the socio-economic impact that the implementation of these solutions could bring to the country and its regions.
Indenture Between Baldwin Talmage, Isaac Edwards, and His Wife, Hannah, January 26, 1830
Creators: name: Talmadge, Baldwin
name: Edwards, Isaac
Publisher: name: Unknown
Year: 1830
Subjects: Edwards Family
Contracts
Debt
Documents
East Hampton
Talmage Family

description: Indenture between Baldwin Talmage, Isaac Edwards, and his wife, Hannah, January 26, 1830. This item is part of the Isaac Edwards Deed Collection, donated by Bess Rattray in December 2020.
Thirty Meter Telescope Site Testing VI: Turbulence Profiles
Creators: name: Els, S. G.
name: Travouillon, T.
name: Schoeck, M.
name: Riddle, R.
name: Skidmore, W.
name: Seguel, J.
name: Bustos, E.
name: Walker, D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The results on the vertical distribution of optical turbulence above the five mountains which were investigated by the site testing for the Thirty Meter Telescope (TMT) are reported. On San Pedro Martir in Mexico, the 13 North site on Mauna Kea and three mountains in northern Chile Cerro Tolar, Cerro Armazones and Cerro Tolonchar, MASS-DIMM turbulence profilers have been operated over at least two years. Acoustic turbulence profilers - SODARs - were also operated at these sites. The obtained turbulence profiles indicate that at all sites the lowest 200m are the main source of the total seeing observed, with the Chilean sites showing a weaker ground layer than the other two sites. The two northern hemisphere sites have weaker turbulence at altitudes above 500m, with 13N showing the weakest 16km turbulence, being responsible for the large isoplanatic angle at this site. The influence of the jetstream and wind speeds close to the ground on the clear sky turbulence strength throughout the atmosphere are discussed, as well as seasonal and nocturnal variations. This is the sixth article in a series discussing the TMT site testing project.
description: 36 pages, 14 figures, accepted for publication in PASP
Passing current through touching molecules
Creators: name: Schull, Guillaume
name: Frederiksen, Thomas
name: Brandbyge, Mads
name: Berndt, Richard
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The charge flow from a single C60 molecule to another one has been probed. The conformation and electronic states of both molecules on the contacting electrodes have been characterized using a cryogenic scanning tunneling microscope. While the contact conductance of a single molecule between two Cu electrodes can vary up to a factor of three depending on electrode geometry, the conductance of the C60-C60 contact is consistently lower by two orders of magnitude. First-principles transport calculations reproduce the experimental results, allow a determination of the actual C60-C60 distances, and identify the essential role of the intermolecular link in bi- and trimolecular chains.
description: 4 pages, 4 figures (+ suppl. material 2 pages, 1 figure)
The multicomponent 2D Toda hierarchy: dispersionless limit
Creators: name: Manas, Manuel
name: Alonso, Luis Martinez
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The factorization problem of the multi-component 2D Toda hierarchy is used to analyze the dispersionless limit of this hierarchy. A dispersive version of the Whitham hierarchy defined in terms of scalar Lax and Orlov--Schulman operators is introduced and the corresponding additional symmetries and string equations are discussed. Then, it is shown how KP and Toda pictures of the dispersionless Whitham hierarchy emerge in the dispersionless limit. Moreover, the additional symmetries and string equations for the dispersive Whitham hierarchy are studied in this limit.
description: Revised version with an overall improved presentation
MPEC 2023-Y49 : 2023 XH18
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 XH18

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
One topos, many sites
Creators: name: Caramello, Olivia
Publisher: name: arXiv
Year: 2009
Subjects: subject: Category Theory (math.CT)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03G30, 18C10, 18B25

description: We give characterizations, for various fragments of geometric logic, of the class of theories classified by a locally connected (resp. connected and locally connected, atomic, compact, presheaf) topos, and exploit the existence of multiple sites of definition for a given topos to establish some properties of quotients of theories of presheaf type.
description: 19 pages
What we have (not)learned from the ultrarelativistic heavy ion collisions
Creators: name: Paic, G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The field of ultrarelativistic heavy ion collisions is today a flourishing activity both on the experimental and on the theoretical side. Although the theoretical justifications to study these collisions was given already more than three decades ago and the experimental studies have a history of more than 25 years we are still very much in the dark as to the details of the processes and of the characteristics of the matter created in collisions. Increasing the energy of collisions has brought new insights but has also resulted with new challenges. In the present paper I will try from a personal perspective to report on the answers we have collected and on the problems we are faced with. The account is partial, taking into account that it is impossible to render justice to every aspect of the field.
description: 12pages 3 figures
ENLIGHT RISE - Deliverable 3.1 - Mapping of Digital Research Infrastructural Resources
Creators: name: Andersson, Margaretha
name: Lembinen, Liisi
name: Schmidt, Birgit
name: Schatz, Merle
Publisher: name: Zenodo
Year: 2022
Subjects: Digital research infrastructure
European Universities Alliance
Open Science
Roadmap

description: The report brings together a mapping of Digital Research Infrastructural Resources across ENLIGHT RISE partners. A mapping exercise aims at creating an overview of platforms, competencies and priorities within the ENLIGHT community. The objective is to identify synergies related to the ENLIGHT flagship areas and provide input for future joint R/I actions. A roadmap for connecting and sharing digital infrastructural resources between the nine partner universities is outlined. Preparations for future digital alignment of innovation ecosystems and a responsible use of AI are also discussed.
Magnetoconductivity of Dirac fermions in graphene under charged impurity scatterings
Creators: name: Yan, Xin-Zhong
name: Ting, C. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: On the basis of self-consistent Born approximation, we solve the Bethe-Salpeter matrix equations for Cooperon propagator of the Dirac fermions in graphene under the charged impurity scatterings and a weak external magnetic field. In the absence of the magnetic field, the quantum interference effect in the electric conductivity from the contribution of Cooperon propagator will be studied and possible weak localization in the system is discussed in terms of the sample length and temperature. The magnetoconductivity stemming from the quantum interference effect is calculated, and the obtained results are in good agreement with experimental measurements.
description: 13 pages, 9 figures
Interplay between writhe and knotting for swollen and compact polymers
Creators: name: Baiesi, Marco
name: Orlandini, Enzo
name: Whittington, Stuart G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The role of the topology and its relation with the geometry of biopolymers under different physical conditions is a nontrivial and interesting problem. Aiming at understanding this issue for a related simpler system, we use Monte Carlo methods to investigate the interplay between writhe and knotting of ring polymers in good and poor solvents. The model that we consider is interacting self-avoiding polygons on the simple cubic lattice. For polygons with fixed knot type we find a writhe distribution whose average depends on the knot type but is insensitive to the length $N$ of the polygon and to solvent conditions. This "topological contribution" to the writhe distribution has a value that is consistent with that of ideal knots. The standard deviation of the writhe increases approximately as $\sqrt{N}$ in both regimes and this constitutes a geometrical contribution to the writhe. If the sum over all knot types is considered, the scaling of the standard deviation changes, for compact polygons, to $\sim N^{0.6}$. We argue that this difference between the two regimes can be ascribed to the topological contribution to the writhe that, for compact chains, overwhelms the geometrical one thanks to the presence of a large population of complex knots at relatively small values of $N$. For polygons with fixed writhe we find that the knot distribution depends on the chosen writhe, with the occurrence of achiral knots being considerably suppressed for large writhe. In general, the occurrence of a given knot thus depends on a nontrivial interplay between writhe, chain length, and solvent conditions.
description: 10 pages, accepted in J.Chem.Phys
Web-Based Expert System for Civil Service Regulations: RCSES
Creators: name: Hogo, Mofreh
name: Fouad, Khaled
name: Mousa, Fouad
Publisher: name: arXiv
Year: 2010
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Internet and expert systems have offered new ways of sharing and distributing knowledge, but there is a lack of researches in the area of web based expert systems. This paper introduces a development of a web-based expert system for the regulations of civil service in the Kingdom of Saudi Arabia named as RCSES. It is the first time to develop such system (application of civil service regulations) as well the development of it using web based approach. The proposed system considers 17 regulations of the civil service system. The different phases of developing the RCSES system are presented, as knowledge acquiring and selection, ontology and knowledge representations using XML format. XML Rule-based knowledge sources and the inference mechanisms were implemented using ASP.net technique. An interactive tool for entering the ontology and knowledge base, and the inferencing was built. It gives the ability to use, modify, update, and extend the existing knowledge base in an easy way. The knowledge was validated by experts in the domain of civil service regulations, and the proposed RCSES was tested, verified, and validated by different technical users and the developers staff. The RCSES system is compared with other related web based expert systems, that comparison proved the goodness, usability, and high performance of RCSES.
description: 10 pages IEEE format, International Journal of Computer Science and Information Security, IJCSIS December 2009, ISSN 1947 5500, http://sites.google.com/site/ijcsis/
HPro: A NLO Monte-Carlo for Higgs production via gluon fusion with finite heavy quark masses
Creators: name: Anastasiou, Charalampos
name: Bucherer, Stefan
name: Kunszt, Zoltan
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute fully differential next-to-leading order QCD cross-sections for Higgs boson production via gluon fusion in the Standard Model. We maintain the full dependence of the cross-sections on the top and bottom quark mass. We find that finite quark mass effects are important given the achieved precision of QCD predictions for gluon fusion. Our Monte-Carlo program, HPro, can correct existing NNLO fully differential calculations, which employ the approximation of an infinitely heavy top and a vanishing bottom quark Yukawa coupling, for heavy quark finite mass effects through NLO.
description: References added. Discussion of small-x effects on the Higgs rapidity distribution added
Magnon thermal Hall effect in kagome antiferromagnets with Dzyaloshinskii-Moriya interactions
Creators: name: Laurell, Pontus
name: Fiete, Gregory A.
Publisher: name: The University of Texas at Austin
Year: 2018
Subjects: magnon

description: We theoretically study magnetic and topological properties of antiferromagnetic kagome spin systems in the presence of both in- and out-of-plane Dzyaloshinskii-Moriya interactions. In materials such as the iron jarosites, the in-plane interactions stabilize a canted noncollinear "umbrella" magnetic configuration with finite scalar spin chirality. We derive expressions for the canting angle, and use the resulting order as a starting point for a spin-wave analysis. We find topological magnon bands, characterized by non-zero Chern numbers. We calculate the magnon thermal Hall conductivity, and propose the iron jarosites as a promising candidate system for observing the magnon thermal Hall effect in a noncollinear spin configuration. We also show that the thermal conductivity can be tuned by varying an applied magnetic field, or the in-plane Dzyaloshinskii-Moriya strength. In contrast with previous studies of topological magnon bands, the effect is found to be large even in the limit of small canting.
Vector boson scattering at high mass with ATLAS
Creators: name: Davison, Adam
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In the absence of a light Higgs boson, the mechanism of electroweak symmetry breaking will be best studied in processes of vector boson scattering at high mass. Various models predict resonances in this channel. Scalar and vector resonances have been investigated in the WW, WZ and ZZ channels. The ability of ATLAS to measure the di-boson cross-section over a range of centre-of-mass energies has been studied with particular attention paid to the reconstruction of jet pairs with low opening angle resulting from the decays of highly boosted vector bosons.
description: Part of the proceedings for SUSY08
Implementacje strategii zmiany. Próba bilansu
Creators: name: Jach, Anna
Publisher: name: figshare
Year: 2021
Subjects: subject: 160699 Political Science not elsewhere classified
subject: FOS: Political science

description: „Implementacje strategii” zmiany. Próba bilansu, [w: ] Rewolucja rosyjska. Spuścizna. „Implementacje strategii” zmiany, red. A. Jach, Wydawnictwo Księgarnia Akademicka, Kraków 2017; seria wydawnicza Rosja. Wczoraj, dziś, jutro. Polityka - kultura – religia - gospodarka, red. J. Diec, A. Jach, M. Kuryłowicz, t. 21, ss. 205 – 216.
A future very-high-energy view of our Galaxy
Creators: name: Funk, S.
name: Hinton, J. A.
name: Hermann, G.
name: Digel, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The survey of the inner Galaxy with H.E.S.S. was remarkably successful in detecting a wide range of new very-high-energy gamma-ray sources. New TeV gamma-ray emitting source classes were established, although several of the sources remain unidentified, and progress has been made in understanding particle acceleration in astrophysical sources. In this work, we constructed a model of a population of such very-high-energy gamma-ray emitters and normalised the flux and size distribution of this population model to the H.E.S.S.-discovered sources. Extrapolating that population of objects to lower flux levels we investigate what a future array of imaging atmospheric telescopes (IACTs) such as AGIS or CTA might detect in a survey of the Inner Galaxy with an order of magnitude improvement in sensitivity. The sheer number of sources detected together with the improved resolving power will likely result in a huge improvement in our understanding of the populations of galactic gamma-ray sources. A deep survey of the inner Milky Way would also support studies of the interstellar diffuse gamma-ray emission in regions of high cosmic-ray density. In the final section of this paper we investigate the science potential for the Galactic Centre region for studying energy-dependent diffusion with such a future array.
description: Proceeding of "Heidelberg International Symposium on High Energy Gamma-Ray Astronomy", held in Heidelberg, 7-11 July 2008, submitted to AIP Conference Proceedings. 4 pages, 4 figures
Unsupervised machine learning for detection of phase transitions in off-lattice systems. I. Foundations
Creators: name: Jadrich, Ryan B.
name: Lindquist, Beth A.
name: Truskett, Thomas M.
Publisher: name: AIP Publishing
Year: 2018
Subjects: off-lattice

description: We demonstrate the utility of an unsupervised machine learning tool for the detection of phase transitions in off-lattice systems. We focus on the application of principal component analysis (PCA) to detect the freezing transitions of two-dimensional hard-disk and three-dimensional hard-sphere systems as well as liquid-gas phase separation in a patchy colloid model. As we demonstrate, PCA autonomously discovers order-parameter-like quantities that report on phase transitions, mitigating the need for a priori construction or identification of a suitable order parameter—thus streamlining the routine analysis of phase behavior. In a companion paper, we further develop the method established here to explore the detection of phase transitions in various model systems controlled by compositional demixing, liquid crystalline ordering, and non-equilibrium active forces.
Unsupervised machine learning for detection of phase transitions in off-lattice systems. II. Applications
Creators: name: Jadrich, Ryan B.
name: Lindquist, Beth A.
name: Piñeros, William D.
name: Banerjee, Debanshu
Publisher: name: AIP Publishing
Year: 2018
Subjects: off-lattice

description: We outline how principal component analysis can be applied to particle configuration data to detect a variety of phase transitions in off-lattice systems, both in and out of equilibrium. Specifically, we discuss its application to study (1) the nonequilibrium random organization (RandOrg) model that exhibits a phase transition from quiescent to steady-state behavior as a function of density, (2) orientationally and positionally driven equilibrium phase transitions for hard ellipses, and (3) a compositionally driven demixing transition in the non-additive binary Widom-Rowlinson mixture.
Dynamic pinning at a Py/Co interface measured using inductive magnetometry
Creators: name: Kennewell, K. J.
name: Kostylev, M.
name: Magaraggia, R.
name: Stamps, R. L.
name: Ali, M.
name: Stashkevich, A. A.
name: Greig, D.
name: Hickey, B. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Broadband FMR responses for metallic single-layer and bi-layer magnetic films with total thicknesses smaller than the microwave magnetic skin depth have been studied. Two different types of microwave transducers were used to excite and detect magnetization precession: a narrow coplanar waveguide and a wide microstrip line. Both transducers show efficient excitation of higher-order standing spin wave modes. The ratio of amplitudes of the first standing spin wave to the fundamental resonant mode is independent of frequency for single films. In contrast, we find a strong variation of the amplitudes with frequency for bi-layers and the ratio is strongly dependent on the ordering of layers with respect to a stripline transducer. Most importantly, cavity FMR measurements on the same samples show considerably weaker amplitudes for the standing spin waves. All experimental data are consistent with expected effects due to screening by eddy currents in films with thicknesses below the microwave magnetic skin depth. Finally, conditions for observing eddy current effects in different types of experiments are critically examined.
Asymptotic iteration method for spheroidal harmonics of higher-dimensional Kerr-(A)dS black holes
Creators: name: Cho, H. T.
name: Cornell, A. S.
name: Doukas, Jason
name: Naylor, Wade
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this work we calculate the angular eigenvalues of the $(n+4)$-dimensional {\it simply} rotating Kerr-(A)dS spheroidal harmonics using the Asymptotic Iteration Method (AIM). We make some comparisons between this method and that of the Continued Fraction Method (CFM) and use the latter to check our results. We also present analytic expressions for the small rotation limit up to $O(c^3)$ with the coefficient of each power up to $O(α^2)$, where $c=aω$ and $α=a^2 Λ$ ($a$ is the angular velocity, $ω$ the frequency and $Λ$ the cosmological constant).
description: 7 pages, 6 tables, LaTeX; typos corrected and reference added; table clarity improved, 2 figures and more references added (now 9 pages)
Floquet Hofstadter Butterfly on the Kagome and Triangular Lattices.
Creators: name: Du, Liang
name: Chen, Qi
name: Barr, Aaron D.
name: Fiete, Gregory A.
Publisher: name: The University of Texas at Austin
Year: 2018
Subjects: Kagome

description: In this work we use Floquet theory to theoretically study the influence of monochromatic circularly and linearly polarized light on the Hofstadter butterfly---induced by a uniform perpendicular magnetic field--for both the kagome and triangular lattices. In the absence of the laser light, the butterfly has fractal structure with inversion symmetry about magnetic flux ϕ=1/4, and reflection symmetry about ϕ=1/2. As the system is exposed to an external laser, we find circularly polarized light deforms the butterfly by breaking the mirror symmetry at flux ϕ=1/2. By contrast, linearly polarized light deforms the original butterfly while preserving the mirror symmetry at flux ϕ=1/2. We find the inversion symmetry is always preserved for both linear and circular polarized light. For linearly polarized light, the Hofstadter butterfly depends on the polarization direction. Further, we study the effect of the laser on the Chern number of lowest band in the off-resonance regime (laser frequency is larger than the bandwidth). For circularly polarized light, we find that low laser intensity will not change the Chern number, but beyond a critical intensity the Chern number will change. For linearly polarized light, the Chern number depends on the polarization direction. Our work highlights the generic features expected for the periodically driven Hofstadter problem on different lattices.
Tacitus and the representation of the legal world in the Annals
Creators: name: González Rojas, Pablo Javier
Publisher: name: The University of St Andrews
Year: 2023
Subjects: subject: Tacitus
subject: Annals
subject: Roman historiography
subject: Roman law and Latin literature
subject: Legal imagination
subject: PA6705.A9G7
subject: Tacitus, Cornelius. Annales
subject: Roman law--History
subject: Latin literature--History and criticism
subject: Rome--Historiography

description: This thesis investigates Tacitus’ views on the law and the narrative function of law-related episodes in the Annals. It adopts the methods of the ‘Law and Literature’ approach, exploring both Tacitus’ literary representation of the legal world and the socio-cultural conditions informing his conception of law and empire. Chapter 1 examines three trial narratives where Tacitus emphasises Tiberius’ idiosyncratically deceptive strategies in his handling of judicial procedures. Chapter 2 analyses Tacitus’ depiction of Tiberius as lawmaker and his troubling relationship with the normativity of Augustan precedents. This chapter also considers the authorial digressions on the law ensuing from Tiberius’ treatment of marriage and sumptuary legislation in Annals 3. Whereas in the digression on the origins of the law (de principiis iuris) Tacitus advances a pessimistic understanding of the law as a coercive force imposed on the individual, in the digression on luxury (luxus) he intimates a notion of historical change that destabilises the thesis of irreversible decline in Roman history. Chapter 3 concentrates on the representation of Claudius and his transgressive approach to the law both in his capacity as judge (conducting trials in his bedchamber) and lawmaker (defending the principle of legal innovation). Chapter 4 deals with the reign of Nero, exploring the ways in which the emperor’s understanding of justice as spectacle are portrayed in the narrative. Chapter 5 looks into the literary depiction of Cassius Longinus and the ideas conveyed through this expert in law. It also evaluates the implications of the character’s idealisation of the world of the ancestors and his view of Roman history as continuous deterioration – a view that stands in contradiction to Tacitus’ more complex interpretation of historical change. By focusing on the law, this thesis illustrates the meaningful ways in which the macrostructure of decline (Tacitus’ version of the Julio-Claudian era) and the micro-narratives of progress (his views on the Principate) interact in the Annals.
Search for resonant diphoton production with the D0 detector
Creators: name: The D0 Collaboration
name: Abazov, V. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a search for a narrow resonance in the inclusive diphoton final state using 2.7 fb-1 of data collected with the D0 detector at the Fermilab Tevatron ppbar Collider. We observe good agreement between the data and the background prediction, and set the first 95% C.L. upper limits on the production cross section times the branching ratio for decay into a pair of photons for resonance masses between 100 and 150 GeV. This search is also interpreted in the context of several models of electroweak symmetry breaking with a Higgs boson decaying into two photons.
description: 7 pages, 3 figures;