cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Finding a Shortest Even Hole in Polynomial Time
Creators: name: Cheong, Hou-Teng
name: Lu, Hsueh-I
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 05C38, 05C10, 05C85, 68P05

description: An even (respectively, odd) hole in a graph is an induced cycle with even (respectively, odd) length that is at least four. Bienstock [DM 1991 and 1992] proved that detecting an even (respectively, odd) hole containing a given vertex is NP-complete. Conforti, Chornuéjols, Kappor, and Vušković [FOCS 1997] gave the first known polynomial-time algorithm to determine whether a graph contains even holes. Chudnovsky, Kawarabayashi, and Seymour [JGT 2005] estimated that Conforti et al.'s algorithm runs in $O(n^{40})$ time on an $n$-vertex graph and reduced the required time to $O(n^{31})$. Subsequently, da~Silva and Vušković~[JCTB 2013], Chang and Lu [JCTB 2017], and Lai, Lu, and Thorup [STOC 2020] improved the time to $O(n^{19})$, $O(n^{11})$, and $O(n^9)$, respectively. The tractability of determining whether a graph contains odd holes has been open for decades until the algorithm of Chudnovsky, Scott, Seymour, and Spirkl [JACM 2020] that runs in $O(n^9)$ time, which Lai et al. also reduced to $O(n^8)$. By extending Chudnovsky et al.'s techniques for detecting odd holes, Chudnovsky, Scott, and Seymour [Combinatorica 2020 to appear] (respectively, [arXiv 2020]) ensured the tractability of finding a long (respectively, shortest) odd hole. They also ensured the NP-hardness of finding a longest odd hole, whose reduction also works for finding a longest even hole. Recently, Cook and Seymour ensured the tractability of finding a long even hole. An intriguing missing piece is the tractability of finding a shortest even hole, left open for at least 15 years by, e.g., Chudnovsky et al. [JGT 2005] and Johnson [TALG 2005]. We resolve this long-standing open problem by giving the first known polynomial-time algorithm, running in $O(n^{31})$ time, for finding a shortest even hole in an $n$-vertex graph that contains even holes.
description: 8 pages, 1 figure
STRATEGIES OF VALUE PROPOSITION ON THE INTERNET
Creators: name: Doltgalski, Tymoteusz
name: Doltgalski, Tymoteusz
Publisher: name: Unknown
Year: 2010
Subjects: subject: International Development
subject: Research and Development/Tech Change/Emerging Technologies
subject: Value proposition
subject: values for customer
subject: Internet
subject: E-commerce
subject: online environment
subject: value offerings
subject: value co-creation
subject: mass customization
subject: freemium

description: The paper presents strategies of value proposition on the Internet. Author has distinguished and described strategies of efficiency, free values, complete customer solutions, unique values and value co-creation. These strategies are different from traditional strategies of value proposition, which refer values for customers to the level of price.
TECHNOLOGY ROADMAPPING IN HUNGARY: SOME PRACTICAL OBSERVATIONS
Creators: name: Pataki, Bela
name: Szalkai, Zsuzsanna
name: Biro-Szigeti, Szilvia
name: Pataki, Bela
name: Szalkai, Zsuzsanna
name: Biro-Szigeti, Szilvia
Publisher: name: Unknown
Year: 2010
Subjects: subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies
subject: Technology roadmapping
subject: technology management
subject: technology strategy
subject: business strategy

description: Technology roadmapping (TRM) is a technique for exploring the evolution of markets, products, technologies, and their linkages. During our Hungarian TRM-applications we found important a clear business need; senior level ownership; effective communication; information and knowledge sharing; spending considerable time at the beginning; preferring less frequent but longer workshops than more frequent shorter ones; involving all related functions, active participation of senior managers; having a TRM-champion inside the company; a case-study-based training to teach TRM; and calling TRM a different name at the beginning
Doping, density of states and conductivity in polypyrrole and poly(p-phenylene vinylene)
Creators: name: Hulea, I. N.
name: Brom, H. B.
name: Mukherjee, A. K.
name: Menon, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The evolution of the density of states (DOS) and conductivity as function of well controlled doping levels in OC_1C_10-poly(p-phenylene vinylene) [OC_1C_10-PPV] doped by FeCl_3 and PF_6, and PF_6 doped polypyrrole (PPy-PF_6 have been investigated. At a doping level as high as 0.2 holes per monomer, the former one remains non-metallic, while the latter crosses the metal-insulator transition. In both systems a similar almost linear increase in DOS as function of charges per unit volume c* has been observed from the electrochemical gated transistor data. In PPy-PF_6, when compared to doped OC_1C_10-PPV, the energy states filled at low doping are closer to the vacuum level; by the higher c* at high doping more energy states are available, which apparently enables the conduction to change to metallic. Although both systems on the insulating side show log(sigma) proportional to T^-1/4 as in variable range hopping, for highly doped PPy-PF_6 the usual interpretation of the hopping parameters leads to seemingly too high values for the density of states.
description: 4 pages (incl. 6 figures) in Phys. Rev. B
GALEX Observations of the Ultraviolet Halos of NGC 253 and M82
Creators: name: Hoopes, C. G.
name: Heckman, T. M.
name: Strickland, D. K.
name: Seibert, M.
name: Madore, B. F.
name: Rich, R. M.
name: Bianchi, L.
name: de Paz, A. Gil
name: Burgarella, D.
name: Thilker, D. A.
name: Friedman, P. G.
name: Barlow, T. A.
name: Byun, Y. -I.
name: Donas, J.
name: Forster, K.
name: Jelinsky, P. N.
name: Lee, Y. -W.
name: Malina, R. F.
name: Martin, D. C.
name: Milliard, B.
name: Morrissey, P. F.
name: Neff, S. G.
name: Schiminovich, D.
name: Siegmund, O. H. W.
name: Small, T.
name: Szalay, A. S.
name: Welsh, B. Y.
name: Wyder, T. K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Galaxy Evolution Explorer (GALEX) images of the prototypical edge-on starburst galaxies M82 and NGC253. Our initial analysis is restricted to the complex of ultraviolet (UV) filaments in the starburst-driven outflows in the galaxy halos. The UV luminosities in the halo are too high to be provided by shock-heated or photoionized gas except perhaps in the brightest filaments in M82, suggesting that most of the UV light is the stellar continuum of the starburst scattered into our line of sight by dust in the outflow. This interpretation agrees with previous results from optical imaging polarimetry in M82. The morphology of the UV filaments in both galaxies shows a high degree of spatial correlation with H-alpha and X-ray emission. This indicates that these outflows contain cold gas and dust, some of which may be vented into the intergalactic medium (IGM). UV light is seen in the ``H-alpha cap'' 11 kpc North of M82. If this cap is a result of the wind fluid running into a pre-existing gas cloud, the gas cloud contains dust and is not primordial in nature but was probably stripped from M82 or M81. If starburst winds efficiently expel dust into the IGM, this could have significant consequences for the observation of cosmologically distant objects.
description: This paper will be published as part of the Galaxy Evolution Explorer (GALEX) Astrophysical Journal Letters Special Issue. Links to the full set of papers will be available at http://www.galex.caltech.edu/PUBLICATIONS/ after November 22, 2004
Obscure Prehistorical Accessions to the Slavic Lexicon, 2020. In: Encyclopedia of Slavic Languages and Linguistics Online, Editor-in-Chief University of Kansas, Marc. L. Greenberg et al. Brill, Leiden - Boston.
Creators: name: Leschber, Corinna
Publisher: name: figshare
Year: 2020
Subjects: subject: 200304 Central and Eastern European Languages (incl. Russian)
subject: FOS: Languages and literature
subject: 200406 Language in Time and Space (incl. Historical Linguistics, Dialectology)

description: This article focuses on Slavic words with difficult etymologies and demonstrates possible approaches to solving a range of etymological problems. The ambiguities posed by the obscurity of the linguistic material itself makes it necessary to rely on supporting disciplines aside from linguistics, e.g., archaeology and genetics. Since Slavic languages are Indo-European languages, many inherited Slavic words can be explained unequivocally by Proto-Indo-European etymology. However, some of the Proto-Slavic lexicon remains etymologically unexplained or can be linked to a lexical root that can be exclusively reconstructed for the European branch of Indo-European languages. Other Slavic words show features that are indicative of an additional Indo-European substratum in Proto-Slavic.One of the most enigmatic phenomena, potential yet unidentified substratum influences in Bulgarian, is also dealt with. These can be attributed to certain semantic fields and reflect the influence of at least one potential Old Balkan substratum. The results of an unattested but easily reconstructible lexical influence from Finno-Ugric language varieties on local Russian dialects are also discussed.
CHALLENGES OF ORGANIZATIONAL CHANGE IN THE CASE OF ALBANIAN EXPORTING COMPANIES
Creators: name: Sinanaj, Doloreza
name: Dollani, Petrit
name: Sinanaj, Doloreza
name: Dollani, Petrit
Publisher: name: Unknown
Year: 2010
Subjects: subject: Community/Rural/Urban Development
subject: Industrial Organization
subject: International Relations/Trade
subject: Albanian exporting companies
subject: organizational change.

description: The authors, using the export sector companies’ data, attempt to study influence of internal organizational factors (such as structure, culture, political and power/authority issues of the decision making) on a company performance.
Differentially Transcendental Functions
Creators: name: Mijajlovic, Zarko
name: Malesevic, Branko
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Mathematics (math.GM)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 65L80, 34A09, 12H05

description: The aim of this paper is to exhibit a method for proving that certain analytic functions are not solutions of algebraic differential equations. The method is based on model-theoretic properties of differential fields and properties of certain known transcendental differential functions, as of $Γ(x)$. Furthermore, it also determines differential transcendency of solution of some functional equations.
Evidence of Task-Independent Person-Specific Signatures in EEG using Subspace Techniques
Creators: name: Kumar, Mari Ganesh
name: Narayanan, Shrikanth
name: Sur, Mriganka
name: Murthy, Hema A
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Electroencephalography (EEG) signals are promising as alternatives to other biometrics owing to their protection against spoofing. Previous studies have focused on capturing individual variability by analyzing task/condition-specific EEG. This work attempts to model biometric signatures independent of task/condition by normalizing the associated variance. Toward this goal, the paper extends ideas from subspace-based text-independent speaker recognition and proposes novel modifications for modeling multi-channel EEG data. The proposed techniques assume that biometric information is present in the entire EEG signal and accumulate statistics across time in a high dimensional space. These high dimensional statistics are then projected to a lower dimensional space where the biometric information is preserved. The lower dimensional embeddings obtained using the proposed approach are shown to be task-independent. The best subspace system identifies individuals with accuracies of 86.4% and 35.9% on datasets with 30 and 920 subjects, respectively, using just nine EEG channels. The paper also provides insights into the subspace model's scalability to unseen tasks and individuals during training and the number of channels needed for subspace modeling.
description: \copyright 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
Extending the spectral operation of multimode and polarization-independent power splitters through subwavelength nanotechnology
Creators: name: de Cabo, Raquel Fernández
name: González-Andrade, David
name: Cheben, Pavel
name: Velasco, Aitor V.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Power splitters play a crucial role in virtually all photonic circuits, enabling precise control of on-chip signal distribution. However, state-of-the-art solutions typically present trade-offs in terms of loss, bandwidth, and fabrication robustness, especially when targeting multimode operation. Here, we present a novel multimode 3-dB power splitter based on a symmetric Y-junction assisted by subwavelength grating metamaterials. The inclusion of the metamaterial structure circumvents the practical limitations of conventional Y-junction tips and realizes smooth modal transitions. Simulations for a standard 220-nm-thick silicon-on-insulator platform predict minimal excess loss (< 0.2 dB) for the fundamental and the first-order transverse-electric modes over an ultra-broad 700 nm bandwidth (1300-2000 nm). For the fundamental transverse-magnetic mode, losses are less than 0.3 dB in the 1300-1800 nm range. Experimental measurements validate these predictions in the 1430-1630 nm wavelength range, demonstrating losses < 0.4 dB for all three modes, even in the presence of fabrication deviations of up to \pm 10 nm. We believe that this device is suitable for the implementation of advanced photonic systems requiring high-performance distribution of optical signals.
Antibacterial potential assessment of Nalca (Gunnera tinctoria Mol.) ethanolic extracts
Creators: name: Velásquez, Patricia
name: Riquelme, Karla
name: Leyton, Felipe
name: Giordano, Ady
name: Gómez, Miguel
name: Montenegro, Gloria
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Nalca is an edible rhubarb-type plant from the southern of Chile; with studies focussing on petiole chemical and biological properties. This work evaluated for the first time the antibacterial capacities of three organs of nalca against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa. Petiole (P), root (R) and flower (F) ethanolic extracts at three different concentrations (25, 50, 100 mg/mL) were evaluated by means of agar diffusion assay and MIC. The result showed that antibacterial activities are bacteria and concentration dependent, with root having the highest antimicrobial activity of the organs plant studied. Compared to commercial antibiotics, nalca extracts show promising control over Ps. aeruginosa. The main polyphenolics of the extracts were identified by UPLC–MS/MS, observing for the first time caffeic, coumaric and gallic acids presence in all samples, with quercetin and rutin determined in petiole and flower extracts only. Our results contribute to better understanding of nalca attributes as potential source of antibacterial compounds to be used in nutraceutical, cosmetic and food industry.
Left-Right Entanglement Entropy for a Dp-brane with Dynamics and Background Fields
Creators: name: Teymourtashlou, Shirin
name: Kamani, Davoud
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the left-right entanglement entropy of a boundary state, corresponding to a dynamical D$p$-brane with the internal and background fields. We assume that the brane has a tangential linear motion and a rotation, and is dressed with an internal $U(1)$ gauge potential and the Kalb-Ramond tensor field $B_{μν}$. We derive the entanglement entropy via the Rényi entropy by applying the replica trick. Our calculations will be in the context of the bosonic string theory.
description: 16 pages, LATEX2e, No figure
DIVERSIFICATION OF RURAL TOURISM TROUGH PARTNERSHIP APPROACHES IN EASTERN EUROPE DESTINATION
Creators: name: Stankova, Mariva
name: Stankova, Mariva
Publisher: name: Unknown
Year: 2010
Subjects: subject: Community/Rural/Urban Development
subject: International Development
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: New opportunities
subject: sustainable tourism development

description: The societies of Central and Eastern Europe (CEE) contain many and diverse rural cultures which present myriad opportunities for small-scale, high income, locally controlled tourism generation. The negative impact of political and economic change has often been significant in the region’s rural areas. But with spatially and structurally dynamic mix of mass and specialist markets to target, there are increasing opportunities for rural attractions to act as a basic resource for tourism organized and sustained through locally owned small enterprises.
Supplementary material from Critical adsorption of multiple polyelectrolytes onto a nanosphere: splitting the adsorption–desorption transition boundary
Creators: name: Caetano, Daniel L. Z.
name: Carvalho, Sidney J. De
name: Metzler, Ralf
name: Cherstvy, Andrey G.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Biophysics
subject: Biotechnology
subject: 100799 Nanotechnology not elsewhere classified
subject: FOS: Nanotechnology

description: Employing extensive Monte Carlo computer simulations, we investigate in detail the properties of multichain adsorption of charged flexible polyelectrolytes (PEs) onto oppositely charged spherical nanoparticles (SNPs). We quantify the conditions of critical adsorption—the phase-separation curve between the adsorbed and desorbed states of the PEs—as function of the SNP surface-charge density and the concentration of added salt. We study the degree of fluctuations of the PE–SNP electrostatic binding energy quantifying with its help the emergence of the phase subtransitions, including a series of partially adsorbed PE configurations. We demonstrate how the phase-separation boundary shifts and splits into multiple subtransitions at low-salt conditions, thereby generalising and extending the results for critical adsorption of a single PE onto the SNP. The current findings are relevant for finite concentrations of PEs around the attracting SNP, such as the conditions for PE adsorption onto globular proteins carrying opposite electric charges.
Simulation of Transitions between "Pasta" Phases in Dense Matter
Creators: name: Watanabe, Gentaro
name: Maruyama, Toshiki
name: Sato, Katsuhiko
name: Yasuoka, Kenji
name: Ebisuzaki, Toshikazu
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Calculations of equilibrium properties of dense matter predict that at subnuclear densities nuclei can be rodlike or slablike. To investigate whether transitions between phases with non-spherical nuclei can occur during the collapse of a star, we perform quantum molecular dynamic simulations of the compression of dense matter. We have succeeded in simulating the transitions between rodlike and slablike nuclei and between slablike nuclei and cylindrical bubbles. Our results strongly suggest that non-spherical nuclei can be formed in the inner cores of collapsing stars.
description: 4 pages, 4 figures, final version published in Phys. Rev. Lett., high-res figures can be seen at http://www.nordita.dk/~gentaro/research/figs
Quadratic residue patterns, algebraic curves and a K3 surface
Creators: name: Kiritchenko, Valentina
name: Tsfasman, Michael
name: Vladuts, Serge
name: Zakharevich, Ilya
Publisher: name: arXiv
Year: 2024
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11A15, 11L10, 14H40, 14H52

description: Quadratic residue patterns modulo a prime are studied since 19th century. In the first part we extend existing results on the number of consecutive $\ell$-tuples of quadratic residues, studying corresponding algebraic curves and their jacobians, which happen to be products of jacobians of hyperelliptic curves. In the second part we state the last unpublished result of Lydia Goncharova on squares such that their differences are also squares, reformulate it in terms of algebraic geometry of a K3 surface, and prove it. The core of this theorem is an unexpected relation between the number of points on the K3 surface and that on a CM elliptic curve.
description: some errors corrected,Finite Fields and Their Applications 101(2025) 102517
SATISFACTION OF THE EMPLOYED IN FOOD BUSINESSES AND SUCCESS OF FOOD SAFETY MANAGEMENT SYSTEM IMPLEMENTATION
Creators: name: Grujic, Radoslav
name: Grujic, Slavica
name: Durasinovic, Pejo
name: Pavlovic, Pero
name: Grujic, Radoslav
name: Grujic, Slavica
name: Durasinovic, Pejo
name: Pavlovic, Pero
Publisher: name: Unknown
Year: 2010
Subjects: subject: Food Security and Poverty
subject: Industrial Organization
subject: Production Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: HACCP
subject: employees’ social status
subject: efficiency of HACCP system application.

description: Efficiency of food safety management system application, such as HACCP system, depends on personnel employed in a company (salary, social status, job stability, superiors’ relation toward workers and relationship among workers themselves, knowledge background, etc). Results presented in this paper are the results of surveys conducted in food businesses in Bosnia and Herzegovina. A special part of the research is related to employees’ social status and employees’ opinion of their status in a company.
Reduction of Feynman Integrals in the Parametric Representation III: Integrals with Cuts
Creators: name: Chen, Wen
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Phase space cuts are implemented by inserting Heaviside theta functions in the integrands of momentum-space Feynman integrals. By directly parametrizing theta functions and constructing integration-by-parts (IBP) identities in the parametric representation, we provide a systematic method to reduce integrals with cuts. Since the IBP method is available, it becomes possible to evaluate integrals with cuts by constructing and solving differential equations.
description: 6 pages, 1 figure, matches published version
Palladium/nickel-mediated cross coupling reaction between phosphorylamides and alkenes toward enephosphorylamides
Creators: name: Zijian Zhao
name: Zhu, Qiao
name: Shiying Che
name: Zhenghong Luo
name: Lian, Yan
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Enephosphorylamides were herein successfully prepared from phosphorylamides and substituted alkenes. The dehydrogenative transformation took place in the presence of a combination of a palladium diacetate and nickel dichloride. The transition metal-catalyzed methodology enjoyed high efficiency and broad substrate scope. Moreover, a plausible mechanism was proposed for the oxidative C–N cross coupling protocol.
Patient and probe tracking during freehand ultrasound
Creators: name: Flaccavento, Giselle
Publisher: name: University of British Columbia
Year: 2009

description: The measurement of the relative location of images acquired using freehand ultrasound is often required for panoramic ultrasound, ultrasound assisted surgery, and 3D ultrasound. It can be necessary to keep the patient still for up to 8 min or hold their breath for up to 45 sec. This can be difficult or impossible for a sick patient. Our system intends to minimize the need for patient breath holds and physical restraints during image acquisition. In this thesis, we present a system that uses an inexpensive trinocular camera system that measures the probe location with respect to the patient's body by calculating the location of both the probe and the patient. The goal is to find the location of the ultrasound images relative to the patient's skin. Using an Optotrak as a reference, the accuracy of the camera is tested. Based on the results obtained, we can estimate that at a distance of approximately 1000 mm from the camera, the location of a patch on a curved surface (such as the patient), with a size of approximately 20 x 20 mm, can be calculated to within ±2 mm. The probe location can be calculated to an accuracy between —2.3 mm and 1.8 mm when the object attached to the probe has an area of approximately 90 x 40 mm. A consistency test is created using the camera and a calibrated probe. The results of this test show that the mean distance between the points calculated using only the camera and the points calculated using the calibrated probe with the camera are —6.7mm, 1.2mm, and 1.6mm, in the x-, y-, and z-directions. Since tracking of the area being examined during ultrasound has not been performed using other tracking systems, our system offers an improvement for freehand tracking techniques. Other systems used for tracking patient motion during an ultrasound scan, have not been able to track the area being scanned as the markers used for tracking would interfere with the examination. In our system, the features overlaid on the patient's skin do not interfere with the ultrasound probe.
Exact BCS stochastic schemes for a time dependent many-body fermionic system
Creators: name: Montina, Alberto
name: Castin, Yvan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The exact quantum state evolution of a fermionic gas with binary interactions is obtained as the stochastic average of BCS-state trajectories. We find the most general Ito stochastic equations which reproduce exactly the dynamics of the system and we obtain some conditions to minimize the stochastic spreading of the trajectories in the Hilbert space. The relation between the optimized equations and mean-field equations is analyzed. The method is applied to a simple two-site model. The simulations display effects that cannot be obtained in the mean-field approximation.
description: 9 pages
Can Spacetime be a Condensate?
Creators: name: Hu, B. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore further the proposal that general relativity is the hydrodynamic limit of some fundamental theories of the microscopic structure of spacetime and matter, i.e., spacetime described by a differentiable manifold is an emergent entity and the metric or connection forms are collective variables valid only at the low energy, long wavelength limit of such micro-theories. In this view it is more relevant to find ways to deduce the microscopic ingredients of spacetime and matter from their macroscopic attributes than to find ways to quantize general relativity because it would only give us the equivalent of phonon physics, not the equivalents of atoms or quantum electrodyanmics. It may turn out that spacetime is merely a representation of collective state of matter in some limiting regime of interactions, which is the view expressed by Sakharov. In this talk, working within the conceptual framework of geometro-hydrodynamics, we suggest a new way to look at the nature of spacetime inspired by Bose-Einstein Condensate (BEC) physics. We ask the question whether spacetime could be a condensate, even without the knowledge of what the `atom of spacetime' is. We begin with a summary of the main themes for this new interpretation of cosmology and spacetime physics, and the `bottom-up' approach to quantum gravity. We then describe the `Bosenova' experiment of controlled collapse of a BEC and our cosmology-inspired interpretation of its results. We discuss the meaning of a condensate in different context. We explore how far this idea can sustain, its advantages and pitfalls, and its implications on the basic tenets of physics and existing programs of quantum gravity.
description: 12 pages Latex. Added some references and footnotes pertaining to work of authors on related themes
Deciphering the Large-Scale Environment of Radio Galaxies in the Local Universe II. A Statistical Analysis of Environmental Properties
Creators: name: Massaro, F.
name: Capetti, A.
name: Paggi, A.
name: Baldi, R. D.
name: Tramacere, A.
name: Pillitteri, I.
name: Campana, R.
name: Jimenez-Gallardo, A.
name: Missaglia, V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In our previous analysis we investigated the large-scale environment of two samples of radio galaxies (RGs) in the local Universe (i.e. with redshifts z<0.15), classified as FR I and FR II on the basis of their radio morphology. The analysis was carried out using i) extremely homogeneous catalogs and ii) a new method, known as cosmological overdensity, to investigate their large-scale environments. We concluded that, independently by the shape of their radio extended structure, RGs inhabit galaxy-rich large-scale environments with similar characteristics and richness. In the present work, we first highlight additional advantages of our procedure, that does not suffer cosmological biases and/or artifacts, and then we carry out an additional statistical test to strengthen our previous results. We also investigate properties of RG environments using those of the cosmological neighbors. We find that large-scale environments of both FRIs and FRIIs are remarkably similar and independent on the properties of central RG. Finally, we highlight the importance of comparing radio sources in the same redshift bins to obtain a complete overview of their large-scale environments.
description: 15 pages, 21 figures, 3 tables, ApJS in press (pre-proof version)
CURRENT STATE OF THE COTTON AND TEXTILE INDUSTRY IN KAZAKHSTAN
Creators: name: Azhimetova, Gulfari
name: Azhimetova, Gulfari
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Production Economics
subject: Cotton and textile cluster
subject: cotton receipt
subject: free economic zone «Ontustik»
subject: cotton
subject: system of obligations fulfillment warranty.

description: The textile industry of Kazakhstan is presented basically by enterprises created in period of centrally planned economy and as consequence. Low labor productivity, lacking equipment base and technologies, poor marketing are problems of the current state of industry. But, there are also advantages as a vicinity of potential cotton manufacturers - Uzbekistan, Tajikistan, Turkmenistan. A free economic zone (FEZ) “Ontustik” has been established and a program of “Ontustik” FEZ development has been adopted for developing the cotton and textile cluster in Kazakhstan. The law “About development of the cotton branch” has been adopted in Kazakhstan to provide the textile enterprises with necessary raw material and to develop the domestic cotton growing.
Generic zero-Hausdorff and one-packing spectral measures
Creators: name: Carvalho, Silas L.
name: de Oliveira, César R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: For some metric spaces of self-adjoint operators, it is shown that the set of operators whose spectral measures have simultaneously zero upper-Hausdorff and one lower-packing dimensions contains a dense $G_δ$ subset. Applications include sets of limit-periodic operators.
Approximated seventh order calculation of vacuum wave function of 2+1 dimensional SU(2) lattice gauge theory
Creators: name: Hui, Ping
name: Fang, Xi-Yan
name: Shi, Ting-yun
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Using the coupled cluster expansion with the random phase approximation, we calculate the long wavelength vacuum wave function and the vacuum energy of 2+1 dimensional Hamiltonian SU(2) lattice gauge theory (LGT) up to the seventh order. The coefficients $μ_0$, $μ_2$ of the vacuum wave function show good scaling behavior and convergence in high order calculations.
What Black Holes Can Teach Us
Creators: name: Hossenfelder, Sabine
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Black holes merge together different field of physics. From General Relativity over thermodynamics and quantum field theory, they do now also reach into the regime of particle and collider physics. In the presence of additional compactified dimensions, it would be possible to produce tiny black holes at future colliders. We would be able to test Planck scale physics and the onset of quantum gravity. The understanding of black hole physics is a key knowledge to the phenomenology of these new effects beyond the Standard Model. This article gives a brief introduction into the main issues and is addressed to a non-expert audience.
description: 36 pages, 16 figures
ISSUES IN DEVELOPMENT OF STATE FINANCIAL CONTROL IN UZBEKISTAN
Creators: name: Pulatov, Dilshod
name: Pulatov, Dilshod
Publisher: name: Unknown
Year: 2009
Subjects: subject: Financial Economics
subject: International Development
subject: State financial control
subject: treasury
subject: budget expenditures efficiency
subject: audit

description: State financial system reforms in Uzbekistan among other priorities aims to provide effective public financial control. Taken steps have already provided satisfactory results in increasing efficiency in revealing and preventing infringements of budgetary entities. Important direction in the area is further development of treasury system, new budget classifications and accounting for budget expenditures, strengthening public audit of public expenditures allocation.
Top-quark mass determination from t-channel single top production at the LHC
Creators: name: Gao, Mei Sen
name: Yuan, Shu Run
name: Gao, Jun
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the determination of the top-quark mass using leptonic observables in t-channel single top-quark production at the LHC. We demonstrate sensitivity of transverse momentum of the charged lepton on the input top-quark mass. We present predictions at next-to-next-to-leading order (NNLO) in QCD with narrow width approximation and structure function approach. Further corrections due to parton shower and hadronization, non-resonant and non-factorized contributions are discussed. To reduce impact of SM backgrounds we propose to use the charge weighted distribution for the measurement, i.e., differences between distributions of charged lepton with positive and negative charges. By modeling both signal and background processes, we found the projections for (HL-)LHC to be promising, with a total theoretical uncertainty on the extracted top-quark mass of about 1 $\sim$ 2 GeV.
description: 29 pages, 8 figures; version to appear on JHEP
LABOR MARKET CONDITIONS AND SOCIAL PROTECTION IN KAZAKHSTAN
Creators: name: Baijolova, Raisa
name: Baijolova, Raisa
Publisher: name: Unknown
Year: 2009
Subjects: subject: International Development
subject: Public Economics
subject: Labor market
subject: unemployment
subject: social protection

description: The paper discusses topical problems of labor market in Kazakhstan and issues on social protection of population. Main measures taken by the government on social protection of population, also major social protection policy directions are observed. In addition, the author indicates on issues demanding specific attention of the government social regulation.
Well-Posedness of the generalised Dean-Kawasaki Equation with correlated noise on bounded domains
Creators: name: Popat, Shyam
Publisher: name: arXiv
Year: 2024
Subjects: subject: Probability (math.PR)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper, we extend the notion of stochastic kinetic solutions introduced in arXiv:2108.08858 to establish the well-posedness of stochastic kinetic solutions of generalized Dean-Kawasaki equations with correlated noise on bounded, $C^2$-domains with Dirichlet boundary conditions. The results apply to a wide class of non-negative boundary data, which is based on certain a priori estimates for the solutions, that encompasses all non-negative constant functions including zero and all smooth functions bounded away from zero.
description: 46 pages
மலர்வதியின் நாவல்களில் சமூகம்
Creators: name: Kala, Sree
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature
subject: 200520 Indian Literature

description: கன்னியாகுமரி மாவட்ட வெள்ளிகோடு பகுதியைச்சார்ந்தவர் மலர்வதி இளம்படைப்பாளர் மிக குறுகிய காலத்திலேயே காத்திருந்த கருப்பாயி தூப்புக்காரி என்னும இரு நாவல்களைப்படைத்துள்ளார் பாறைத்தொழிலாளர்களின் வாழ்வை காத்திருந்த கருப்பாயி காட்டுகிறது இனம் சார்ந்த தொழிலாக பகுக்கப்பட்ட துப்பரவுத்தொழிலை வறுமை காரணமாக வேறு இனத்தைச்சார்ந்தகனகம் செய்கிறார் பெண் பாத்திரங்களை தன்னம்பிக்கை உடையவர்களாகவே ஆசிரியர் படைத்துள்ளார்
Classifications of $Γ$-colored $d$-complete posets and upper $P$-minuscule Borel representations
Creators: name: Strayer, Michael C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary 05E10, Secondary 17B10, 17B67, 06A11

description: The $Γ$-colored $d$-complete posets correspond to certain Borel representations that are analogous to minuscule representations of semisimple Lie algebras. We classify $Γ$-colored $d$-complete posets which specifies the structure of the associated representations. We show that finite $Γ$-colored $d$-complete posets are precisely the dominant minuscule heaps of J.R. Stembridge. These heaps are reformulations and extensions of the colored $d$-complete posets of R.A. Proctor. We also show that connected infinite $Γ$-colored $d$-complete posets are precisely order filters of the connected full heaps of R.M. Green.
description: 20 pages, 2 figures, 1 table
Strong Resonance of Light in a Cantor Set
Creators: name: Hatano, Naomichi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The propagation of an electromagnetic wave in a one-dimensional fractal object, the Cantor set, is studied. The transfer matrix of the wave amplitude is formulated and its renormalization transformation is analyzed. The focus is on resonant states in the Cantor set. In Cantor sets of higher generations, some of the resonant states closely approach the real axis of the wave number, leaving between them a wide region free of resonant states. As a result, wide regions of nearly total reflection appear with sharp peaks of the transmission coefficient beside them. It is also revealed that the electromagnetic wave is strongly enhanced and localized in the cavity of the Cantor set near the resonant frequency. The enhancement factor of the wave amplitude at the resonant frequency is approximately $6/|η_\mathrm{r}|$, where $η_\mathrm{r}$ is the imaginary part of the corresponding resonant eigenvalue. For example, a resonant state of the lifetime $τ_\mathrm{r}=4.3$ms and of the enhancement factor $M=7.8\times10^7$ is found at the resonant frequency $ω_\mathrm{r}=367$GHz for the Cantor set of the fourth generation of length L=10cm made of a medium of the dielectric constant $ε=10$.
description: 20 pages, 11 figures, to be published in Journal of the Physical Society of Japan
Gauge potentials and vortices in the Fock space of a pair of periodically driven Bose-Einstein condensates
Creators: name: Mumford, J.
name: Kamp, D.
name: O'Dell, D. H. J.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We perform a theoretical study of the coupled dynamics of two species of Bose-Einstein condensates (BECs) in a double well potential where both the tunneling and the interatomic interactions are driven periodically in time. The population difference between the wells of each species gives rise to a two dimensional lattice in Fock space with dimensions given by the number of atoms in each BEC. We use a Floquet analysis to derive an effective Hamiltonian that acts in this Fock space and find that it contains an artificial gauge field. This system simulates noninteracting particles in a tight binding lattice subject to an additional harmonic potential and vector potential. When the intra-species interactions are attractive there is a critical value at which the ground state of the Floquet operator undergoes a transition from a Gaussian state to a quantized vortex state in Fock space. The transition can be quantified in terms of the angular momentum as well as the entanglement entropy of the ground state with both showing sudden jumps as the intra-species interactions become stronger. The stability of the vortex state vanishes in the thermodynamic limit.
description: 12 pages, 5 figures
USING CLUSTER ANALYSIS IN MEASURING SOCIAL DOMAIN OF TERRITORIAL BRAND
Creators: name: Baskakova, Irina
name: Stepanova, Zlata
name: Baskakova, Irina
name: Stepanova, Zlata
Publisher: name: Unknown
Year: 2009
Subjects: subject: Public Economics
subject: Territorial brand
subject: brand social dimension
subject: social equilibrium
subject: social effectiveness
subject: territorial and social systems (TSS)
subject: clusters
subject: social types

description: Territorial brand has a social dimension reflected in the social equilibrium and measurable with social effectiveness indicators. The paper offers social effectiveness analysis of territory using investigation object “territorial and social systems (TSS)” with their further classification according to social types based on cluster analysis. This method allows the authors to distinct four social types of TSS in Sverdlovsk region in accordance with such characteristics as financial activity, quality of life, social stability and ill-being levels. The results of investigation could be useful for brand policy of territorial authorities.
Intrinsic process for upconversion photoluminescence via $K$-momentum phonon coupling in carbon nanotubes
Creators: name: Kozawa, Daichi
name: Fujii, Shun
name: Kato, Yuichiro K.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the intrinsic microscopic mechanism of photon upconversion in air-suspended single-walled carbon nanotubes through photoluminescence and upconversion photoluminescence spectroscopy. Nearly linear excitation power dependence of upconversion photoluminescence intensity is observed, indicating a one-photon process as the underlying mechanism. In addition, we find a strongly anisotropic response to the excitation polarization which reflects the intrinsic nature of the upconversion process. In upconversion photoluminescence excitation spectra, three peaks are observed which are similar to photoluminescence sidebands of the $K$-momentum dark singlet exciton. The features in the upconversion photoluminescence excitation spectra are well reproduced by our second-order exciton-phonon interaction model, enabling the determination of phonon energies and relative amplitudes. The analysis reveals that the upconversion photoluminescence can be described as a reverse process of the sideband emission linked to the $K$-momentum phonon modes. The validity of our model is further reinforced by temperature-dependent upconversion photoluminescence excitation measurements reflecting variations in the phonon population. Our findings underscore the pivotal role of the resonant exciton-phonon coupling in pristine carbon nanotubes and presents potential for advanced optothermal technologies by engineering the excitation pathways.
description: 8 pages, 4 figures
DEVELOPING A CORPORATE MANAGEMENT IN A JOINT-STOCK COMPANY
Creators: name: Konopyanova, Galina
name: Konopyanova, Galina
Publisher: name: Unknown
Year: 2009
Subjects: subject: Public Economics
subject: Corporate management
subject: stock company
subject: board of directors
subject: strategic management

description: Balanced and effective formalization of rules of corporate management are important for companies to implement reliable strategies and sustain on market. The paper outlines the board of directors’ responsibility within the OECD principles of corporate management. As the author states, relations between board of directors and a company management must be essentially improved in Kazakhstan. It is argued that the current state of board directors’ authority in Kazakhstan companies does not provide their involvement in developing and controlling strategic course and values on market.
கவிஞர் கமலசெல்வராஜின் கூந்தலைத்தட்டிமுடி கவிதை பெண் சமூக தகுதிநிலை
Creators: name: Kala, Sree
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature
subject: 200520 Indian Literature

description: கன்னியாகுமரி மாவட்ட அருமனை என்னும் ஊரை பிறப்பிடமாக்க்கொண்டவர்்இது இவரது முதல் கவிதைத்தொகுதி ஆகும் இவர் ஒரு சிறந்த கட்டுரையாளரும் கூட கவிதைத்தலைப்பே பெண்ணினத்தை எழுச்சிகொள்ள செய்கிறது சமூக சிக்கலகளையும இன்னலகளையும் கண்டு மனம் தளராமல் துவண்டுவிடாமல் தலைவிரித்து வேதனையில் மூழ்கி சிக்கி சிதையாமல் கூந்தலைத்தட்டி முடிந்துகொள் புதுமைமிக்க பெண் சமூகத்தைப்பார்க்கலாம் என்று அழைப்பது போல் உள்ளது