cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Jet signals for low mass strings at the LHC
Creators: name: Anchordoqui, Luis A.
name: Goldberg, Haim
name: Nawata, Satoshi
name: Taylor, Tomasz R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The mass scale M_s of superstring theory is an arbitrary parameter that can be as low as few TeVs if the Universe contains large extra dimensions. We propose a search for the effects of Regge excitations of fundamental strings at LHC, in the process p p \to γjet. The underlying parton process is dominantly the single photon production in gluon fusion, g g \to γg, with open string states propagating in intermediate channels. If the photon mixes with the gauge boson of the baryon number, which is a common feature of D-brane quivers, the amplitude appears already at the string disk level. It is completely determined by the mixing parameter -- and it is otherwise model-(compactification-) independent. Even for relatively small mixing, 100 fb^{-1} of LHC data could probe deviations from standard model physics, at a 5σsignificance, for M_s as large as 3.3 TeV.
description: Matching version to be published in Phys. Rev. Lett
Fingerprint basic.pdf
Creators: name: M, Arjun
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 440207
subject: Cybercrime

description: Utilizing deep learning for fingerprint matching analysis revolutionizes the process by employing neural networks to accurately and swiftly match fingerprint details. By focusing on distinctive characteristics such as ridges and valleys, deep learning algorithms can process and recognize complex patterns more effectively than traditional methods. This technique is essential in enhancing identification accuracy in security systems, forensics, and access management. Deep learning's capacity to digest and learn from extensive datasets ensures a significant boost in the precision and speed of fingerprint-based biometric verification, minimizing errors and optimizing performance.
Causality and Legendrian linking for higher dimensional spacetimes
Creators: name: Chernov, Vladimir
Publisher: name: arXiv
Year: 2018
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53B99 (Primary), 57R17, 83C99 (Secondary)

description: Let $(X^{m+1}, g)$ be an $(m+1)$-dimensional globally hyperbolic spacetime with Cauchy surface $M^m$, and let $\widetilde M^m$ be the universal cover of the Cauchy surface. Let $\mathcal N_{X}$ be the contact manifold of all future directed unparameterized light rays in $X$ that we identify with the spherical cotangent bundle $ST^*M.$ Jointly with Stefan Nemirovski we showed when $\widetilde M^m$ is {\bf not\/} a compact manifold, then two points $x, y\in X$ are causally related if and only if the Legendrian spheres $\mathfrak S_x, \mathfrak S_y$ of all light rays through $x$ and $y$ are linked in $\mathcal N_{X}.$ In this short note we use the contact Bott-Samelson theorem of Frauenfelder, Labrousse and Schlenk to show that the same statement is true for all $X$ for which the integral cohomology ring of a closed $\widetilde M$ is {\bf not} the one of the CROSS (compact rank one symmetric space). If $M$ admits a Riemann metric $\overline g$, a point $x$ and a number $\ell>0$ such that all unit speed geodesics starting from $x$ return back to $x$ in time $\ell$, then $(M, \overline g)$ is called a $Y^x_{\ell}$ manifold. Jointly with Stefan Nemirovski we observed that causality in $(M\times \mathbb R, \overline g\oplus -t^2)$ is {\bf not} equivalent to Legendrian linking. Every $Y^x_{\ell}$-Riemann manifold has compact universal cover and its integral cohomology ring is the one of a CROSS. So we conjecture that Legendrian linking is equivalent to causality if and only if one can {\bf not} put a $Y^x_{\ell}$ Riemann metric on a Cauchy surface $M.$
description: 6 pages, exposition is a bit changed
3D Simulation of Fin Geometry Influence on Corner Effect in Multifin Dual and Tri-Gate SOI-Finfets.
Creators: name: A N Moulai Khatir
name: A Guen-Bouazza
name: B Bouazza
Publisher: name: figshare
Year: 2018
Subjects: subject: 100708 Nanomaterials
subject: FOS: Nanotechnology

description: In this work the corner effect sensitivity to fin geometry variation in multifin dual and tri-gate SOI-FinFETs is studied through a commercial, three-dimensional numerical simulator ATLAS from Silvaco International [1]. These devices are compatible with conventional silicon integrated circuit processing, but offer superior performance as the device is scaled into the nanometer range. This study aims wider to use multiple fins between the source and drain regions. The results indicate that for both multifin double and triple gate FinFETs, the corner effect does not lead to an additional leakage current and therefore does not deteriorate the SOI-FinFET performance. .
Quantum Phase Transitions and Conserved Charges
Creators: name: Sachdev, Subir
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The constraints on the scaling properties of conserved charge densities in the vicinity of a zero temperature ($T$), second-order quantum phase transition are studied. We introduce a generalized Wilson ratio, characterizing the non-linear response to an external field, $H$, coupling to any conserved charge, and argue that it is a completely universal function of $H/T$: this is illustrated by computations on model systems. We also note implications for transitions where the order parameter is a conserved charge (as in a $T=0$ ferromagnet-paramagnet transition).
description: 19 pages, REVTEX 3.0, 8 uuencoded Postscript figues appended, YCTP-xxxx
title: Fingerprints of electronic, spin and structural dynamics from resonant inelastic soft X-ray scattering in transient photo-chemical species
Creators: name: Norell, Jesper
name: Jay, Raphael M.
name: Hantschmann, Markus
name: Eckert, Sebastian
name: Guo, Meiyuan
name: Gaffney, Kelly J.
name: Wernet, Philippe
name: Lundberg, Marcus
name: Föhlisch, Alexander
name: Odelius, Michael
Publisher: name: Universität Potsdam
Year: 2019

description: We describe how inversion symmetry separation of electronic state manifolds in resonant inelastic soft X-ray scattering (RIXS) can be applied to probe excited-state dynamics with compelling selectivity. In a case study of Fe L-3-edge RIXS in the ferricyanide complex Fe(CN)(6)(3-), we demonstrate with multi-configurational restricted active space spectrum simulations how the information content of RIXS spectral fingerprints can be used to unambiguously separate species of different electronic configurations, spin multiplicities, and structures, with possible involvement in the decay dynamics of photo-excited ligand-to-metal charge-transfer. Specifically, we propose that this could be applied to confirm or reject the presence of a hitherto elusive transient Quartet species. Thus, RIXS offers a particular possibility to settle a recent controversy regarding the decay pathway, and we expect the technique to be similarly applicable in other model systems of photo-induced dynamics.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 779
Asymptotic Expansions of Jacobi Polynomials for Large Values of $β$ and of Their Zeros
Creators: name: Gil, Amparo
name: Segura, Javier
name: Temme, Nico M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 33C45, 41A60

description: Asymptotic approximations of Jacobi polynomials are given for large values of the $β$-parameter and of their zeros. The expansions are given in terms of Laguerre polynomials and of their zeros. The levels of accuracy of the approximations are verified by numerical examples.
Formalizing Algebraic Properties of I, Exploring Physical Phenomena, and Integrating I into Advanced Theories
Creators: name: fagliari, tiago
Publisher: name: Zenodo
Year: 2025

description: This document presents a refined mathematical framework for incorporating the Universal Con-stant CU into quantum field theory (QFT). We investigate its role in modifying the Lagrangian,path integral, and non-commutative geometry, exploring potential implications for quantumgravity and consciousness.We hypothesize that the Universal Constant CU modifies the dynamics of quantum fields,spacetime geometry, and the emergence of consciousness. This paper develops an extendedLagrangian and action functional to include CU and explores its effects on quantum phenom-ena, gravity, and biological processes.The expression 00 is typically considered an undefined or indeterminate form in standard mathe-matical analysis, yet it has profound implications when viewed beyond this conventional frame-work. This paper posits that 00 can function as a “Universal Constant” that unites disparate dis-ciplines such as mathematics, physics, philosophy, ethics, and technology under a shared con-ceptual umbrella. By integrating non-standard analysis, category theory, and fractal geometry,we reframe 00 as an intrinsic threshold where classical determinism transitions into emergent,probabilistic structures. In doing so, we shed new light on fundamental questions regarding thenature of reality, consciousness, and decision-making. We hypothesize that 00 , when treated asa unique constant, encapsulates the essence of creative potential inherent in both human cogni-tion and physical phenomena. This perspective invites interdisciplinary dialogue, encouragingmathematicians, physicists, philosophers, ethicists, and technologists to collaborate in explor-ing 00 as a source of novel research avenues. Moreover, we discuss the ethical and societaldimensions of harnessing such a concept, urging caution and reflection as we strive to aligntechnological applications with core human values. Overall, the notion of 00 as a UniversalConstant challenges the boundaries of conventional scientific thought and opens new pathwaysfor understanding the limits of knowledge, the emergence of consciousness, and the unificationof scientific and philosophical paradigms. Our findings suggest that embracing the indetermi-nacy embodied by 00 might catalyze transformative insights into both the material and mentalaspects of existence. In conclusion, adopting this viewpoint can unify research endeavors anddrive paradigms in theoretical and applied spheres.
A finite model of two-dimensional ideal hydrodynamics
Creators: name: Dowker, J. S.
name: Wolski, A.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A finite-dimensional su($N$) Lie algebra equation is discussed that in the infinite $N$ limit (giving the area preserving diffeomorphism group) tends to the two-dimensional, inviscid vorticity equation on the torus. The equation is numerically integrated, for various values of $N$, and the time evolution of an (interpolated) stream function is compared with that obtained from a simple mode truncation of the continuum equation. The time averaged vorticity moments and correlation functions are compared with canonical ensemble averages.
description: (25 p., 7 figures, not included. MUTP/92/1)
Enhanced Thermoelectric Properties in a New Silicon Crystal Si24 with Intrinsic Nanoscale Porous Structure
Creators: name: Chae, Kisung
name: Kang, Seoung-Hun
name: Choi, Seon-Myeong
name: Kim, Duck Young
name: Son, Young-Woo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Thermoelectric device is a promising next-generation energy solution owing to its capability to transform waste heat into useful electric energy, which can be realized in materials with high elec- tric conductivities and low thermal conductivities. A recently synthesized silicon allotrope of Si$_{24}$ features highly anisotropic crystal structure with nanometre-sized regular pores. Here, based on first-principles study without any empirical parameter, we show that the slightly doped Si$_{24}$ can pro- vide an order-of-magnitude enhanced thermoelectric figure of merit at room temperature, compared with the cubic diamond phase of silicon. We ascribe the enhancement to the intrinsic nanostructure formed by the nanopore array, which effectively hinders heat conduction while electric conductivity is maintained. This can be a viable option to enhance the thermoelectric figure of merit without further forming an extrinsic nanostructure. In addition, we propose a practical strategy to further diminish the thermal conductivity without affecting electric conductivity by confining rattling guest atoms in the pores.
The Theoretical status of $\bar{B}-B$-mixing and lifetimes of heavy hadrons
Creators: name: Lenz, Alexander
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this talk we review the theoretical status of the lifetime ratios of heavy hadrons and of the B-mixing quantities $ΔM_s$, $ΔΓ_s$ and $ϕ_s$. While $ΔM_s$ and $ΔΓ_s$ suffer from large uncertainties due to the badly known decay constants, the ratio $ΔΓ_s / ΔM_s$ can be determined with almost no non-perturbative uncertainties, therefore it can be used to look for possible new physics effects.
description: Invited Plenary talk at The 4th International Conference on Flavor Physics, Sep. 24-28, 2007, Beijing
Development and Characterization of Mucoadhesive Film of Nitrendipine for Buccal Administration
Creators: name: Chauhan N
name: Mittal A
name: U.K.Bajaj
Publisher: name: figshare
Year: 2018
Subjects: subject: 100705 Nanoelectronics
subject: FOS: Nanotechnology

description: Mucoadhesive buccal patches containing nitrendipine were prepared using the solvent casting method. Chitosan was used as bio-adhesive polymer and different ratios of chitosan to PVP K-30 were used. The pre-formulation study using DSC revealed the compatibility of drug and polymer. Patches were evaluated for their physical characteristics like weight variation, drug content uniformity, folding endurance, surface pH, in vitro drug release, and in vitro buccal permeation study. Patches exhibited controlled release for a period of 8 h. The mechanism of drug release was found to be non-Fickian diffusion and followed the first-order kinetics. Incorporation of PVP K-30 generally enhanced the release rate. Swelling index was proportional to the concentration of PVP K-30. Optimized patches (F6) were characterized by moderate swelling; a convenient residence times as well as adequate drug release (93.4%). The surface pH of all patches was between 5.7 and 6.3 and hence patches should not cause irritation in the buccal cavity. Good correlation was observed between the in vitro drug release and in vitro drug permeation with a correlation coefficient of 0.99.
Convective Excitation of Inertial Modes in Binary Neutron Star Mergers
Creators: name: De Pietri, Roberto
name: Feo, Alessandra
name: Font, José A.
name: Löffler, Frank
name: Maione, Francesco
name: Pasquali, Michele
name: Stergioulas, Nikolaos
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the first very long-term simulations (extending up to ~140 ms after merger) of binary neutron star mergers with piecewise polytropic equations of state and in full general relativity. Our simulations reveal that at a time of 30-50 ms after merger, parts of the star become convectively unstable, which triggers the excitation of inertial modes. The excited inertial modes are sustained up to several tens of milliseconds and are potentially observable by the planned third-generation gravitational-wave detectors at frequencies of a few kilohertz. Since inertial modes depend on the rotation rate of the star and they are triggered by a convective instability in the postmerger remnant, their detection in gravitational waves will provide a unique opportunity to probe the rotational and thermal state of the merger remnant. In addition, our findings have implications for the long-term evolution and stability of binary neutron star remnants
description: 6 pages, 4 figures
Spectrum and Thermodynamics of the one-dimensional supersymmetric t-J model with $1/r^2$ exchange and hopping
Creators: name: Wang, D. F.
name: Liu, James T.
name: Coleman, P.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive the spectrum and the thermodynamics of the one-dimensional supersymmetric t-J model with long range hopping and spin exchange using a set of maximal-spin eigenstates. This spectrum confirms the recent conjecture that the asymptotic Bethe-ansatz spectrum is exact. By empirical determining the spinon degeneracies of each state, we are able to explicitly construct the free energy.
description: 13 pages, Latex, (published in PRB46, 6639 (1992))
Ghost-free completion of an effective matter coupling in bimetric theory
Creators: name: Lüben, Marvin
name: Schmidt-May, Angnis
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a particular set of ghost-free interactions for three spin-2 fields in which we freeze out the dynamics of the metric tensor that couples to the matter sector. Integrating out the non-dynamical degrees of freedom in vacuum results in a ghost-free bimetric theory. In the presence of the matter source, which we treat as a small perturbation, the equations for the non-dynamical field can be solved perturbatively for its vierbein. This results in ghost-free bimetric theory in vierbein formulation with a modified matter coupling. To lowest order in matter perturbations, we precisely obtain an effective matter coupling that has been suggested earlier in the literature. This coupling contains a linear combination of the two vierbeine whose corresponding metric fluctuation coincides with the massless spin-2 mode. In the past, bimetric theory with this symmetric coupling has been treated as an effective theory valid at low energies without a ghost-free completion. Our results demonstrate that the effective matter coupling can be rendered entirely ghost-free by including the higher-order corrections obtained from the trimetric setup.
description: 15 pages, fixed typo in equation (4.6)
Spacetime Scale-Invariance and the Super p-Brane
Creators: name: Bergshoeff, E.
name: London, L. A. J
name: Townsend, P. K.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalize to p-dimensional extended objects and type II superstrings a recently proposed Green-Schwarz type I superstring action in which the tension $T$ emerges as an integration constant of the equations of motion. The action is spacetime scale-invariant but its equations of motion are equivalent to those of the standard super p-brane for $T\ne 0$ and the null super p-brane for $T=0$. We also show that for $p=1$ the action can be written in ``Born-Infeld'' form.
description: 14 pages (LATEX), UG-3/92
Projective Ring Line of an Arbitrary Single Qudit
Creators: name: Havlicek, Hans
name: Saniga, Metod
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: As a continuation of our previous work (arXiv:0708.4333) an algebraic geometrical study of a single $d$-dimensional qudit is made, with $d$ being {\it any} positive integer. The study is based on an intricate relation between the symplectic module of the generalized Pauli group of the qudit and the fine structure of the projective line over the (modular) ring $\bZ_{d}$. Explicit formulae are given for both the number of generalized Pauli operators commuting with a given one and the number of points of the projective line containing the corresponding vector of $\bZ^{2}_{d}$. We find, remarkably, that a perp-set is not a set-theoretic union of the corresponding points of the associated projective line unless $d$ is a product of distinct primes. The operators are also seen to be structured into disjoint `layers' according to the degree of their representing vectors. A brief comparison with some multiple-qudit cases is made.
Proniosomes as a Drug Carrier for Transdermal Delivery of Candesartan Cilexetil
Creators: name: S, Alam
name: Mittal S
name: Mittal A
name: Sharma K
Publisher: name: figshare
Year: 2018
Subjects: subject: 100705 Nanoelectronics
subject: FOS: Nanotechnology

description: Candesartan Cilexetil is an angiotensin II receptor antagonist widely used in the treatment of hypertension and characterized by its good efficacy and less side effects compared to other angiotensin II receptor antagonist. The aim of the study was to develop a proniosomal carrier system for Candesartan Cilexetil for the treatment of hypertension that is capable of efficiently delivering entrapped drug over an extended period of time. In the present study transdermal Candesartan Cilexetil proniosomal gels was formulated by using Lecithin, Cholesterol as encapsulating agents, Surfactant, Span and permeation enhancers by coacervation phase separation method. The prepared systems were characterized for pH determination, Viscosity, Vesicle size analysis, rate of spontaneity, encapsulation efficiency, in vitro release study and ex- vivo skin permeation study, skin irritation study and stability study. It was observed that the gel formulations showed good spreadability and viscosity. The particle size was found to be in the range of 175.0- 277.7 nm. The proniosomes showed spherical and homogenous structure in optical microscopy. All formulations showed zero order drug release by diffusion mechanism. The stability studies showed that proniosomal gels were stable at 4 to 8o C and 25±2o C. The above results indicated that the proniosomal gel could be formulated for controlled release of Candesartan Cilexetil. The proniosomal gel are suitable for Candesartan Cilexetil once a day controlled release formulation. The investigated Candesartan cilexetil loaded proniosomal formula proved to be non-irritant, with significantly higher antihypertensive effects and reasonably good stability characteristics.
From discs to planetesimals I: evolution of gas and dust discs
Creators: name: Alexander, Richard
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I review the processes that shape the evolution of protoplanetary discs around young, solar-mass stars. I first discuss observations of protoplanetary discs, and note in particular the constraints these observations place on models of disc evolution. The processes that affect the evolution of gas discs are then discussed, with the focus in particular on viscous accretion and photoevaporation, and recent models which combine the two. I then discuss the dynamics and growth of dust grains in discs, considering models of grain growth, the gas-grain interaction and planetesimal formation, and review recent research in this area. Lastly, I consider the so-called "transitional" discs, which are thought to be observed during disc dispersal. Recent observations and models of these systems are reviewed, and prospects for using statistical surveys to distinguish between the various proposed models are discussed.
description: 28 pages, 9 figures. Refereed review chapter for proceedings of VLTI summer school on "Circumstellar discs and planets at very high angular resolution", to appear in New Astronomy Reviews. See http://www.vlti.org/ for more details
Double Field Theory and Membrane Sigma-Models
Creators: name: Chatzistavrakidis, Athanasios
name: Jonke, Larisa
name: Khoo, Fech Scen
name: Szabo, Richard J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We investigate geometric aspects of double field theory (DFT) and its formulation as a doubled membrane sigma-model. Starting from the standard Courant algebroid over the phase space of an open membrane, we determine a splitting and a projection to a subbundle that sends the Courant algebroid operations to the corresponding operations in DFT. This describes precisely how the geometric structure of DFT lies in between two Courant algebroids and is reconciled with generalized geometry. We construct the membrane sigma-model that corresponds to DFT, and demonstrate how the standard T-duality orbit of geometric and non-geometric flux backgrounds is captured by its action functional in a unified way. This also clarifies the appearence of noncommutative and nonassociative deformations of geometry in non-geometric closed string theory. Gauge invariance of the DFT membrane sigma-model is compatible with the flux formulation of DFT and its strong constraint, whose geometric origin is explained. Our approach leads to a new generalization of a Courant algebroid, that we call a DFT algebroid and relate to other known generalizations, such as pre-Courant algebroids and symplectic nearly Lie 2-algebroids. We also describe the construction of a gauge-invariant doubled membrane sigma-model that does not require imposing the strong constraint.
description: 54 pages, 1 table; v2: clarifying comments and references added; v3: exposition improved; v4: typo corrected, reference added; Final version published in JHEP
Digital Presence of Academic Scholars: A Case of Universiti Teknologi MARA, Perlis Branch, Malaysia
Creators: name: Abdullah, Azrul
name: Noor, Mazlee Mohd
name: Yahaya, Mohamad Fadhili
Publisher: name: figshare
Year: 2019
Subjects: subject: Education
subject: 130103 Higher Education
subject: FOS: Educational sciences

description: The advent of Internet has triggered academia to play important roles in scholarly publication activities leading to the use of academic profiling sites for researchers to exchange and share research ideas. However, several studies have claimed that many of the academic scholars especially in Malaysia have remained conservative and have refused to fully acknowledge the real potential of this new gadget. Since there are few written papers on online visibility in Malaysia particularly in academic scholars’ context, the study aims to highlight the extent of online visibility among academic researchers in Universiti Teknologi MARA (UiTM), Perlis Branch. By examining five common basic online profiling sites (i.e. ResearchGate, Academia, Google Scholar, ResearcherID and ORCID), it was found that only 31.4% of researchers at UiTM, Perlis Branch had at least one profile, the Faculty of Applied Sciences and the Faculty of Computer and Mathematical Sciences were the top two online profiling site users and Google Scholar was the most widely used platform. In terms of the institutional position, Senior Lecturers appeared to be the top users of profiling sites compared to Associate Professors and Lecturers. The implications of these findings were discussed. 
Migrating The Language Archive to a new repository solution.
Creators: name: Trilsbeek, Paul
Publisher: name: Zenodo
Year: 2019
Subjects: Repository
migration
self-deposit
open source

description: The Language Archive at the Max Planck Institute for Psycholinguistics (TLA) is an archive of digital resources on a large number of languages that are spoken around the world. An important part of its collections concerns languages that are endangered. Some of these collections were added to the UNESCO Memory of the World registry in 2015. The archive was established in the late nineties, using an in-house built repository system that was used until January 2018, when the archive was migrated to a new solution that is largely based on Islandora. To complement Islandora, a custom ingest back-end and front-end were developed that allow for a more controlled ingest workflow and that enable researchers themselves to deposit their materials. Some additional modules were developed to support the CMDI metadata framework, to visualise specific data types and to add certain missing functionality. This paper describes the whole migration trajectory, from selecting a suitable open source repository foundation to developing the additional components and finally the migration of over 1 million objects comprising about 100 TB of data.
Relativistic Dissipative Fluid Dynamics from Non-Equilibrium Statistical Operator
Creators: name: Harutyunyan, Arus
name: Sedrakian, Armen
name: Rischke, Dirk H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new derivation of second-order relativistic dissipative fluid dynamics for quantum systems using Zubarev's formalism for the non-equilibrium statistical operator. In particular, we discuss the shear-stress tensor to second order in gradients and argue that the relaxation terms for the dissipative quantities arise from memory effects contained in the statistical operator. We also identify new transport coefficients which describe the relaxation of dissipative processes to second order and express them in terms of equilibrium correlation functions, thus establishing Kubo-type formulae for the second-order transport coefficients.
description: v2: 11 pages, no figures, references added, matches published version. v1: 10 pages
A Cutoff Procedure and Counterterms for Differential Renormalization
Creators: name: Freedman, D. Z.
name: Johnson, K.
name: Munoz-Tapia, R.
name: Vilasis-Cardona, X.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Explicit divergences and counterterms do not appear in the differential renormalization method, but they are concealed in the neglected surface terms in the formal partial integration procedure used. A systematic real space cutoff procedure for massless $ϕ^4$ theory is therefore studied in order to test the method and its compatibility with unitarity. Through 3-loop order, it is found that cutoff bare amplitudes are equal to the renormalized amplitudes previously obtained using the formal procedure plus singular terms which can be consistently cancelled by adding conventional counterterms to the Lagrangian. Renormalization group functions $β(g)$ and $γ(g)$ obtained in the cutoff theory also agree with previous results.
description: 28 pages, CTP#2099-DTP/92/40-UBECMPF/92/13, 2 figures (not included). (Tex problems solved and information about number of pages and figures added)
The Extinction Toward the Galactic Bulge from RR Lyrae Stars
Creators: name: Kunder, Andrea
name: Popowski, Piotr
name: Cook, Kem H.
name: Chaboyer, Brian
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present mean reddenings toward 3525 RR0 Lyrae stars from the Galactic bulge fields of the MACHO Survey. These reddenings are determined using the color at minimum $V$-band light of the RR0 Lyrae stars themselves and are found to be in general agreement with extinction estimates at the same location obtained from other methods. Using 3256 stars located in the Galactic Bulge, we derive the selective extinction coefficient $R_{V,VR}=A_V/E(V-R) = 4.3 \pm 0.2$. This value is what is expected for a standard extinction law with $R_{V,BV} = 3.1 \pm 0.3$.
description: 4 Figures, accepted to AJ
Correlation Induced Insulator to Metal Transitions
Creators: name: Si, Qimiao
name: Rozenberg, M. J.
name: Kotliar, G.
name: Ruckenstein, A. E.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study a spinless two-band model at half-filling in the limit of infinite dimensions. The ground state of this model in the non-interacting limit is a band-insulator. We identify transitions to a metal and to a charge-Mott insulator, using a combination of analytical, Quantum Monte Carlo, and zero temperature recursion methods. The metallic phase is a non-Fermi liquid state with algebraic local correlation functions with universal exponents over a range of parameters.
description: 12 pages, REVTEX
On some properties of Riemann zeta function on critical line
Creators: name: Moser, Jan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: The aim of this paper is to show further results following those published in [5], and to relate the Riemann zeta function to the relativistic cosmology.
description: paper published in ACTA ARITHMETICA, XXVI (1974)
CHOOSING A METHOD OF ABDOMINAL DELIVERY IN WOMEN WITH A SCAR ON THE UTERUS
Creators: name: Zakirova, Fotima
name: Telmanova, Jasmina
name: Abdullaeva, Nigora
Publisher: name: Zenodo
Year: 2024

description: Caesarean section is an obstetric operation intended for the delivery of women by laparotomy and dissection of the wall of the pregnant uterus, extraction of the fetus, and subsequent restoration of the integrity of the uterus. Purpose of the study: Study of indications for cesarean section and birth outcomes for mother and fetus according to the SamMU clinic. Research material: We analyzed the birth histories of 98 pregnant women, women in labor and postpartum women who delivered abdominally in the multidisciplinary clinic of SamMU in 2024
Noncommutative Wess-Zumino-Witten actions and their Seiberg-Witten invariance
Creators: name: Lopez-Sarrion, Justo
name: Polychronakos, Alexios P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the noncommutative two-dimensional Wess-Zumino-Witten model and its properties under Seiberg-Witten transformations in the operator formulation. We prove that the model is invariant under such transformations even for the noncritical (non chiral) case, in which the coefficients of the kinetic and Wess-Zumino terms are not related. The pure Wess-Zumino term represents a singular case in which this transformation fails to reach a commutative limit. We also discuss potential implications of this result for bosonization.
description: Version to appear in Nuclear Physics B
Zno Nanowire Gas Sensor ith Uv-Light for Improved Sensitivity
Creators: name: TS, Van Den Heever
name: G. L. Hardie
name: W. J. Perold
Publisher: name: figshare
Year: 2018
Subjects: subject: 100710 Nanometrology
subject: FOS: Nanotechnology

description: ZnO nanowires are synthesised on a patterned substrate in order to see the response to different gases. Under ambient conditions the sensor shows very little response to any gas. A UV-light source is used to increase the sensitivity of the sensor by increasing the conductivity of the ZnO nanowires. The UV-light decreases the number of oxygen ions present on the surface of the ZnO nanowires which leads to better sensitivity. The sensor, with the aid of the laser, can distinguish between the different gases that were used, argon, oxygen, carbon dioxide and nitrogen. When a mixture of two gases was used the response fell in between the response of the individual gases. The obtained results are repeatable and consistent over different sensors.
Singular Contractions of W-algebras
Creators: name: Hull, C. M.
name: Palacios, L.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Many $W$-algebras (e.g. the $W_N$ algebras) are consistent for all values of the central charge except for a discrete set of exceptional values. We show that such algebras can be contracted to new consistent degenerate algebras at these exceptional values of the central charge.
description: 10 pages, phyzzx.tex, QMW-92-7.(minor spelling and acknowledgement corrections)
Superparamagnetic Iron Oxide Nanoparticles (SPIONS): The King in The Cosmos of Multimodal Onco–Nanotheranostics. Editorial
Creators: name: Kanwar J R
name: Kamalapuram S K
Publisher: name: figshare
Year: 2018
Subjects: subject: 100705 Nanoelectronics
subject: FOS: Nanotechnology

description: There is an extensional necessity for the major amelioration of hybrid multimodal nanotheranostics, that can offer ulterior theranostic possibilities in the field of nano – oncology. Novel class of nanotheranostic medicines certainly warrant more throughput therapeutic abilities in comparison with conventional platforms. One such platform that dawned in the era of existing treatment efficacies is superparamagnetic iron oxide nanoparticles (SPIONS) nanotheranostics. SPIONS are approved by food and drug administration, USA (FDA), safe, biocompatible and exhibit astounding capabilities in prominence,in realms of (1) diagnostic and prognostic platforms – nanofluidic lap on chip devices, nanoarray systems, nanosensors, (2)targeted multimodal drug delivery and live imaging strategies – pH responsive drug release, tumour oxygen and hypoxic sensors, locked nucleic and chimeric aptamer conjugates , fluorescence and bioluminescence approaches, ibonucleic acid interference (RNAi) technology, antibodies, nanobodies magnetic guided therapy, sonophoto dynamic therapy (SPDT) – ultrasound and infrared laser, photodynamic therapy (PDT), photothermal therapy (PTT), radio imaging and therapy(RIT), photoacoustic imaging(PAI), magnetic resonance imaging and ultrasound therapy (MRI + US), positron emission tomography(PET), single-photon emission computed tomography (SPECT).In turn, variant therapeutic abilities of SPIONS congregate to offer interactive therapeutic feedback monitoring over a time period, opening new vistas for personalised cancer nanomedicine.
Nonequilibrium phase transitions of sheared colloidal microphases: Results from dynamical density functional theory
Creators: name: Stopper, Daniel
name: Roth, Roland
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: By means of classical density functional theory and its dynamical extension, we consider a colloidal fluid with spherically-symmetric competing interactions, which are well known to exhibit a rich bulk phase behavior. This includes complex three-dimensional periodically ordered cluster phases such as lamellae, two-dimensional hexagonally packed cylinders, gyroid structures or spherical micelles. While the bulk phase behavior has been studied extensively in earlier work, in this paper we focus on such structures confined between planar repulsive walls under shear flow. For sufficiently high shear rates, we observe that microphase separation can become fully suppressed. For lower shear rates, however, we find that e.g. the gyroid structure undergoes a kinetic phase transition to a hexagonally packed cylindrical phase, which is found experimentally and theoretically in amphiphilic block copolymer systems. As such, besides the known similarities between the latter and colloidal systems regarding the equilibrium phase behavior, our work reveals further intriguing non-equilibrium relations between copolymer melts and colloidal fluids with competing interactions.
Weak Disorder Expansion for the Anderson Model on a Tree
Creators: name: Miller, J.
name: Derrida, B.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We show how certain properties of the Anderson model on a tree are related to the solutions of a non-linear integral equation. Whether the wave function is extended or localized, for example, corresponds to whether or not the equation has a complex solution. We show how the equation can be solved in a weak disorder expansion. We find that, for small disorder strength $λ$, there is an energy $E_c(λ)$ above which the density of states and the conducting properties vanish to all orders in perturbation theory. We compute perturbatively the position of the line $E_c(λ)$ which begins, in the limit of zero disorder, at the band edge of the pure system. Inside the band of the pure system the density of states and conducting properties can be computed perturbatively. This expansion breaks down near $E_c(λ)$ because of small denominators. We show how it can be resummed by choosing the appropriate scaling of the energy. For energies greater than $E_c(λ)$ we show that non-perturbative effects contribute to the density of states but have been unable tell whether they also contribute to the conducting properties.
description: 24 pages, latex, 7 figures on request, SPhT/T93/136
A Simple Quantum Neural Net with a Periodic Activation Function
Creators: name: Daskin, Ammar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this paper, we propose a simple neural net that requires only $O(nlog_2k)$ number of qubits and $O(nk)$ quantum gates: Here, $n$ is the number of input parameters, and $k$ is the number of weights applied to these parameters in the proposed neural net. We describe the network in terms of a quantum circuit, and then draw its equivalent classical neural net which involves $O(k^n)$ nodes in the hidden layer. Then, we show that the network uses a periodic activation function of cosine values of the linear combinations of the inputs and weights. The backpropagation is described through the gradient descent, and then iris and breast cancer datasets are used for the simulations. The numerical results indicate the network can be used in machine learning problems and it may provide exponential speedup over the same structured classical neural net.
description: a discussion session is added. 5 pages, conference paper. To appear in The 2018 IEEE International Conference on Systems, Man, and Cybernetics (SMC2018)
Light inflaton completing Higgs inflation
Creators: name: Lee, Hyun Min
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider the extension of the Standard Model (SM) with a light inflaton where both unitarity problem in Higgs inflation and vacuum instability problem are resolved. The linear non-minimal coupling of the inflaton to gravity leads to a significant kinetic mixing between the inflaton and the graviton such that perturbative unitarity is restored up to Planck scale. We show the correlation between unitarity scale and inflationary observables in this model and discuss how the effective Higgs inflation appears.
description: 7 pages, 3 figures, Title changed, To appear in Physical Reviews D
Photocatalyst Nanomaterials for Environmental Challenges and Opportunities
Creators: name: Y, Koo
name: Collins B
name: J, Sankar
name: Y, Yun
Publisher: name: figshare
Year: 2018
Subjects: subject: 100708 Nanomaterials
subject: FOS: Nanotechnology

description: Climate change caused by fossil-fuel use and other natural causes as well as Western and Asian economic growth driven by excessive consumption is among the biggest environmental challenges of the 21st century. Advances in nanotechnology bring a new tool set to remediate environmental challenges such as pollutant removal, anti-terror, air/liquid/soil filtration, and carbon dioxide conversion to hydrocarbons. As innovative engineered nanomaterials emerge, it is critical to establish the fundamental science of these new materials so that their utility is optimized and unintended consequences of their use are avoided.
su(3)k fusion coefficients
Creators: name: Begin, L.
name: Mathieu, P.
name: Walton, M. A.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A closed and explicit formula for all $\su{(3)}_k$ fusion coefficients is presented which, in the limit $k \rightarrow \infty$, turns into a simple and compact expression for the $su(3)$ tensor product coefficients. The derivation is based on a new diagrammatic method which gives directly both tensor product and fusion coefficients.
description: 14 pages
Feasibility study for implementing an optical Thomson scattering system for studying photoionized plasmas on Z
Creators: name: Kozlowski, Pawel M.
name: Mancini, Roberto C.
name: Koepke, Mark E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Many astrophysical environments such as X-ray binaries, active galactic nuclei, and accretion disks of compact objects have photoionized plasmas. The strong photoionizing environment found near these bright X-ray sources can be produced in a scaled laboratory experiment, and direct measurements can form a testbed for spectroscopic models and photoionization codes used in analysis of these astrophysical objects. Such scaled experiments are currently being conducted using Ne filled gas cells on the Z-facility as part of the Z Astrophysical Plasma Properties (ZAPP) collaboration. The plasma is diagnosed using a pressure sensor for density and X-ray absorption spectroscopy for charge-state distribution. The electron temperature is presently inferred from a Li-like ion level population ratio, but it is necessary to obtain an independent temperature measurement, as photoionization alters the charge state distribution and can therefore cause errors in temperatures obtained via line ratio techniques. Optical Thomson scattering is a fitting diagnostic because it directly probes the distribution of plasma particle velocities with respect to a central probe frequency. It is a powerful diagnostic which can produce time and space resolved measurements of electron temperature, as well as, electron density, ion temperature, and average ionization. In this paper, we explore a possible design for an optical Thomson scattering system to supplement X-ray spectroscopic measurements. The proposed design will use equipment that is available on Z, though not yet assembled. Both the feasibility and impact of this new diagnostic are assessed by simulating expected spectra for a range of plasma parameters, thereby demonstrating the sensitivity of this diagnostic.
description: Dense Z-pinches special issue 2018, 12 pages, 8 figures
Thermodynamics and heavy-quark free energies at finite temperature and density with two flavors of improved Wilson quarks
Creators: name: Maezawa, Y.
name: Aoki, S.
name: Ejiri, S.
name: Hatsuda, T.
name: Ishii, N.
name: Kanaya, K.
name: Ukita, N.
name: Umeda, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Thermodynamics of two-flavor QCD at finite temperature and density is studied on a $16^3 \times 4$ lattice, using a renormalization group improved gauge action and the clover improved Wilson quark action. In the simulations along lines of constant $m_{\rm PS}/m_{\rm V}$, we calculate the Taylor expansion coefficients of the heavy-quark free energy with respect to the quark chemical potential ($μ_q$) up to the second order. By comparing the expansion coefficients of the free energies between quark($Q$)and antiquark($\bar{Q}$), and between $Q$ and $Q$, we find a characteristic difference at finite $μ_q$ due to the first order coefficient of the Taylor expansion. We also calculate the quark number and isospin susceptibilities, and find that the second order coefficient of the quark number susceptibility shows enhancement around the pseudo-critical temperature.
description: Talk given at the XXV International Symposium on Lattice Field Theory (Lattice 2007), July 30 - August 4, 2007, Regensburg, Germany