cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Real-time Dense Reconstruction of Tissue Surface from Stereo Optical Video
Creators: name: Zhou, Haoyin
name: Jayender, Jagadeesan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We propose an approach to reconstruct dense three-dimensional (3D) model of tissue surface from stereo optical videos in real-time, the basic idea of which is to first extract 3D information from video frames by using stereo matching, and then to mosaic the reconstructed 3D models. To handle the common low texture regions on tissue surfaces, we propose effective post-processing steps for the local stereo matching method to enlarge the radius of constraint, which include outliers removal, hole filling and smoothing. Since the tissue models obtained by stereo matching are limited to the field of view of the imaging modality, we propose a model mosaicking method by using a novel feature-based simultaneously localization and mapping (SLAM) method to align the models. Low texture regions and the varying illumination condition may lead to a large percentage of feature matching outliers. To solve this problem, we propose several algorithms to improve the robustness of SLAM, which mainly include (1) a histogram voting-based method to roughly select possible inliers from the feature matching results, (2) a novel 1-point RANSAC-based P$n$P algorithm called as DynamicR1PP$n$P to track the camera motion and (3) a GPU-based iterative closest points (ICP) and bundle adjustment (BA) method to refine the camera motion estimation results. Experimental results on ex- and in vivo data showed that the reconstructed 3D models have high resolution texture with an accuracy error of less than 2 mm. Most algorithms are highly parallelized for GPU computation, and the average runtime for processing one key frame is 76.3 ms on stereo images with 960x540 resolution.
Quantum Direct Communication with Authentication
Creators: name: Lee, Hwayean
name: Lim, Jongin
name: Yang, HyungJin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose two Quantum Direct Communication (QDC) protocols with user authentication. Users can identify each other by checking the correlation of Greenberger-Horne-Zeilinger (GHZ) states. Alice can directly send a secret message to Bob using the remaining GHZ states after authentication. Our second QDC protocol can be used even though there is no quantum link between Alice and Bob. The security of the transmitted message is guaranteed by properties of entanglement of GHZ states.
description: 9 pages, 3 figures and 2 tables
Is the INTEGRAL/IBIS source IGR J17204-3554 a gamma-ray emitting galaxy hidden behind the molecular cloud NGC 6334 ?
Creators: name: Bassani, L.
name: De Rosa, A.
name: Bazzano, A.
name: Bird, A. J.
name: Dean, A. J.
name: Gehrels, N.
name: Kennea, J. A.
name: Malizia, A.
name: Molina, M.
name: Stephen, J. B.
name: Ubertini, P.
name: Walter, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the identification of a soft gamma-ray source, IGR J17204-3554, detected with the IBIS imager on board the INTEGRAL satellite. The source has a 20-100 keV flux of ~3x10^-11 erg cm^-2 s^-1 and is spatially coincident with NGC 6334, a molecular cloud located in the Sagittarius arm of the Milky Way. Diffuse X-ray emission has been reported from this region by ASCA and interpreted as coming from five far-infrared cores located in the cloud. However, the combined ASCA spectrum with a 9 keV temperature was difficult to explain in terms of emission from young pre-main sequence stars known to be embedded in the star forming regions. Detection of gamma-rays makes this interpretation even more unrealistic and suggests the presence of a high energy source in or behind the cloud. Follow up observations with Swift and archival Chandra data allow us to disentangle the NGC6334 enigma by locating an extragalactic object with the proper spectral characteristics to explain the gamma-ray emission. The combined Chandra/IBIS spectrum is well fitted by an absorbed power law with index 1.2+/-0.1, NH=1.4+/-0.1x10^23 cm^-2 and an unabsorbed 2-10 keV flux of 0.5x10^-11 erg cm^-2 s^-1. This column density is in excess of the galactic value implying that we are detecting a background galaxy concealed by the molecular cloud and further hidden by material located either in the galaxy itself or between IGR J17204-3554 and the cloud.
description: 4 pages, 4 figures, to be published in Astrophysical Journal Letters
Near Conformal Perturbation Theory in SYK Type Models
Creators: name: Das, Sumit R.
name: Ghosh, Animik
name: Jevicki, Antal
name: Suzuki, Kenta
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a systematic procedure to extract the dynamics of the low energy soft mode in SYK type models with a single energy scale $J$ and emergent reparametrization symmetry in the IR. This is given in the framework of the perturbation theory scheme of arXiv:1608.07567 based on specific (off-shell) breaking of conformal invariance in the UV, adjusted to yield the exact large-$N$ saddle point. While this breaking formally vanishes on-shell, it has a non-trivial effect on correlation functions and the effective action. In particular, it leads to the Schwarzian action with a specific coupling to bi-local matter. The method is applied to the evaluation of $O(1)$ corrections to the correlation function of bi-locals. As a byproduct we confirm precise agreement with the explicit, symmetry breaking procedure. We provide a verification in the large $q$ limit (Liouville theory), where the correlators can be calculated exactly at all length scales. In this case, our scheme illuminates how the enhanced $O(J)$ and the subleading $O(1)$ contributions originate from the Schwarzian dynamics of the soft mode and its interaction with $h=2$ (bi-local) matter.
description: 54 pages, 4 figures
COOPERATIVE ANTITRUST MONOPOLIZATION AND THE THEORY OF CONTESTABLE MARKETS
Creators: name: Centner, Terence J.
name: Wetzstein, Michael E.
name: Centner, Terence J.
name: Wetzstein, Michael E.
Publisher: name: Unknown
Year: 1984
Subjects: Industrial Organization

description: The judiciary has relied on a firm's market share to evaluate the presence of monopoly power for a Sherman Act monopolization violation. However, an allegation that a firm's market share constitutes monopoly power may be refuted by evidence that there exists a contestable market. Contestable market theory shows that there is no monopoly power where there exists a threat of entry of other firms. This theory thereby offers agricultural cooperatives, which may have a large market share by reasons of the antitrust immunity provided by the Capper-Volstead Act, an argument to overcome allegations of a Sherman Act monopolization violation.
Renoux, Ch.: Le Lectionnaire de Jérusalem en Arménie
Creators: name: Winkler, Gabriele
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 79 (1995): Oriens christianus, Band 79
S3 x Z2 model for neutrino mass matrices
Creators: name: Grimus, W.
name: Lavoura, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a model for lepton mass matrices based on the seesaw mechanism, a complex scalar gauge singlet and a horizontal symmetry $S_3 \times \mathbbm{Z}_2$. In a suitable weak basis, the charged-lepton mass matrix and the neutrino Dirac mass matrix are diagonal, but the vacuum expectation value of the scalar gauge singlet renders the Majorana mass matrix of the right-handed neutrinos non-diagonal, thereby generating lepton mixing. When the symmetry $S_3$ is not broken in the scalar potential, the effective light-neutrino Majorana mass matrix enjoys $μ$--$τ$ interchange symmetry, thus predicting maximal atmospheric neutrino mixing together with $U_{e3} = 0$. A partial and less predictive form of $μ$--$τ$ interchange symmetry is obtained when the symmetry $S_3$ is softly broken in the scalar potential. Enlarging the symmetry group $S_3 \times \mathbbm{Z}_2$ by an additional discrete electron-number symmetry $\mathbbm{Z}_2^{(e)}$, a more predicitive model is obtained, which is in practice indistinguishable from a previous one based on the group $D_4$.
description: 13 pages, 3 figures, final version for publication in JHEP
Optical observations of the young supernova remnant SNR 0540-69.3 and its pulsar
Creators: name: Serafimovich, N. I.
name: Lundqvist, P.
name: Shibanov, Yu. A.
name: Sollerman, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used the ESO NTT/EMMI and VLT/FORS1 instruments to examine the LMC supernova remnant 0540-69.3 as well as its pulsar (PSR B0540-69) and pulsar-powered nebula in the optical range.Spectroscopic observations of the remnant covering the range of 3600-7350 A centered on the pulsar produced results consistent with those of Kirshner et al. (1989), but also revealed many new emission lines. The most important are [Ne III] 3869, 3967 and Balmer lines of hydrogen. In both the central part of the remnant, as well as in nearby H II regions, the [O III] temperature is higher than about 20 000 K, but lower than previously estimated. For PSR B0540-69, previous optical data are mutually inconsistent: HST/FOS spectra indicate a significantly higher absolute flux and steeper spectral index than suggested by early time-resolved groundbased UBVRI photometry. We show that the HST and VLT spectroscopic data for the pulsar have more then about 50% nebular contamination, and that this is the reason for the previous difference. Using HST/WFPC2 archival images obtained in various bands from the red part of the optical to the NUV range we have performed an accurate photometric study of the pulsar, and find that the spectral energy distribution of the pulsar emission has a negative slope with 1.07 +/- 0.2. This is steeper than derived from previous UBVRI photometry, and also different from the almost flat spectrum of the Crab pulsar. We also estimate that the proper motion of the pulsar is 4.9 +/- 2.3 mas/yr, corresponding to a transverse velocity of 1190 +/- 560 km/s, projected along the southern jet of the pulsar nebula.
description: To appear in the conference proceedings '35th COSPAR Scientific Assembly. E1.4-0058-04, Paris, France, 18 - 25 July 2004'. Paper with full resolution images can be found at ftp://ftp.astro.su.se/pub/supernova/natalia/0540psr_snr_fin.pdf
Parents as career coaches
Creators: name: Beddoes, Janet Anne Sinclair
Publisher: name: University of British Columbia
Year: 2009

description: This study explored the efficacy of providing workshops for parents of first year university students in the area of career coaching their young adult children. Parents have a great deal of influence on their children when they are entering university. The purpose of this study was to explore the perceptions, feelings and experiences of parents of students attending first year university in providing assistance in career exploration and planning. The workshops conducted were for the purpose of giving parents information and resources, an understanding of labour market information, career exploration and planning, and the decision making process. The study consisted of a series of two workshops attended by 55 parents of first year university students. After the second sessions, 24 parents participated in focus group interviews. The focus group interviews were audio taped and transcribed and statements were analyzed for themes. Parents demonstrated shifts in thinking, especially a greater sense of hope, as well, they gained knowledge and skills, to be more effective career coaches for their students. The major themes were Parent Anxiety (lack of information); Communication; Parenting Styles; and Changing Roles.
Convective turbulent viscosity acting on equilibrium tidal flows: new frequency scaling of the effective viscosity
Creators: name: Duguid, Craig D.
name: Barker, Adrian J.
name: Jones, Chris A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Turbulent convection is thought to act as an effective viscosity ($ν_E$) in damping tidal flows in stars and giant planets. However, the efficiency of this mechanism has long been debated, particularly in the regime of fast tides, when the tidal frequency ($ω$) exceeds the turnover frequency of the dominant convective eddies ($ω_c$). We present the results of hydrodynamical simulations to study the interaction between tidal flows and convection in a small patch of a convection zone. These simulations build upon our prior work by simulating more turbulent convection in larger horizontal boxes, and here we explore a wider range of parameters. We obtain several new results: 1) $ν_E$ is frequency-dependent, scaling as $ω^{-0.5}$ when $ω/ω_c \lesssim 1$, and appears to attain its maximum constant value only for very small frequencies ($ω/ω_c \lesssim 10^{-2}$). This frequency-reduction for low frequency tidal forcing has never been observed previously. 2) The frequency-dependence of $ν_E$ appears to follow the same scaling as the frequency spectrum of the energy (or Reynolds stress) for low and intermediate frequencies. 3) For high frequencies ($ω/ω_c\gtrsim 1-5$), $ν_E\propto ω^{-2}$. 4) The energetically-dominant convective modes always appear to contribute the most to $ν_E$, rather than the resonant eddies in a Kolmogorov cascade. These results have important implications for tidal dissipation in convection zones of stars and planets, and indicate that the classical tidal theory of the equilibrium tide in stars and giant planets should be revisited. We briefly touch upon the implications for planetary orbital decay around evolving stars.
description: 20 pages, 10 figures, 3 tables, accepted for publication in MNRAS on 23rd July 2020
Additional file 1 of Effect of carbon-rich-waste addition as co-substrate on the performance and stability of anaerobic digestion of abattoir wastewater without agitation
Creators: name: Hailu, Abrha Mulu
name: Seyoum Leta Asfaw
name: Tenalem Ayenew Tegaye
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Computational Biology

description: Additional file 1: Table S1. One-way ANOVA of the effects of different mixing ratios on %CH4 (Significant at the 0.05 level). Table S2. Pearson correlation of some variables in methanogenic reactors with different mixing ratios.
Entanglement of pseudo-Hermitian random states
Creators: name: Goulart, C. A.
name: Pato, M. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a recent paper (arXiv:1905.07348v1), Dyson scheme to deal with density matrix of non-Hermitian Hamiltonians has been used to investigate the entanglement of states of a PT-symmetric bosonic system. They found that von Neumann entropy can show a different behavior in the broken and unbroken regime. We show that their results can be recast in terms of an abstract model of pseudo-Hermitian random matrices. It is found however that, although the formalism is practically the same, the entanglement is not of Fock states but of Bell states.
description: 15 pages, 2 figures
Observable signals in a string inspired axion-dilaton background and Randall-Sundrum scenario
Creators: name: Maity, Debaprasad
name: SenGupta, Soumitra
name: Sur, Sourav
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Rotation angle of the plane of polarization of the distant galactic radio waves has been estimated in a string inspired axion-dilaton background. It is found that the axion,dual to the field strength of the second rank antisymmetric massless Kalb-Ramond field in the string spectrum, produces a wavelength independent optical rotation which is much larger than that produced by the dilaton. Detection of such rotation has been reported in some recent cosmological experiments. The observed value has been compared with our estimated theoretical value following various cosmological constraints. The effects of warped extra dimensions in a braneworld scenario on such an optical rotation have been investigated.
description: 17 Pages, Latex, article revised, To appear in Physical Review D
PRODUCTION RELATIONSHIPS IN SOUTH CENTRAL AGRICULTURE
Creators: name: Polson, Rudolph A.
name: Shumway, C. Richard
name: Polson, Rudolph A.
name: Shumway, C. Richard
Publisher: name: Unknown
Year: 1992
Subjects: Production Economics

description: Output supplies and input demands were estimated for each of five South Central states. The model structure in each state was based on prior parametric tests of homothetic separability, and estimates were generally consistent with a competitive, profit-maximizing industry. Considerable diversity among states was evident in selected production relationships. These results further document the non-uniform ways in which producers respond to government farm programs and market information.
CYGNO: a gaseous TPC with optical readout for dark matter directional search
Creators: name: Baracchini, E.
name: Benussi, L.
name: Bianco, S.
name: Capoccia, C.
name: Caponero, M.
name: Cavoto, G.
name: Cortez, A.
name: Costa, I. A.
name: Di Marco, E.
name: D'Imperio, G.
name: Dho, G.
name: Iacoangeli, F.
name: Maccarrone, G.
name: Marafini, M.
name: Mazzitelli, G.
name: Messina, A.
name: Nobrega, R. A.
name: Orlandi, A.
name: Paoletti, E.
name: Passamonti, L.
name: Petrucci, F.
name: Piccolo, D.
name: Pierluigi, D.
name: Pinci, D.
name: Renga, F.
name: Rosatelli, F.
name: Russo, A.
name: Saviano, G.
name: Tomassini, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The CYGNO project has the goal to use a gaseous TPC with optical readout to detect dark matter and solar neutrinos with low energy threshold and directionality. The CYGNO demonstrator will consist of 1 m 3 volume filled with He:CF 4 gas mixture at atmospheric pressure. Optical readout with high granularity CMOS sensors, combined with fast light detectors, will provide a detailed reconstruction of the event topology. This will allow to discriminate the nuclear recoil signal from the background, mainly represented by low energy electron recoils induced by radioactivity. Thanks to the high reconstruction efficiency, CYGNO will be sensitive to low mass dark matter, and will have the potential to overcome the neutrino floor, that ultimately limits non-directional dark matter searches.
Incommensurate interactions and non-conventional spin-Peierls transition in TiOBr
Creators: name: van Smaalen, Sander
name: Palatinus, Lukas
name: Schonleber, Andreas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Temperature-dependent x-ray diffraction of the low-dimensional spin 1/2 quantum magnet TiOBr shows that the phase transition at T_{c2} = 47.1 (4) K corresponds to the development of an incommensurate superstructure. Below T_{c1} = 26.8 \pm 0.3 K the incommensurate modulation locks in into a two-fold superstructure similar to the low-temperature spin-Peierls state of TiOCl. Frustration between intra- and interchain interations within the spin-Peierls scenario, and competition between two-dimensional magnetic order and one-dimensional spin-Peierls order are discussed as possible sources of the incommensurability.
description: 5 pages including 3 figures and 1 table
Two-neutron transfer reactions as a tool to study the interplay between shape coexistence and quantum phase transitions
Creators: name: García-Ramos, J. E.
name: Arias, J. M.
name: Vitturi, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The goal of this study is to find an observable that could distinguish between both phenomena, shape coexistence and quantum phase transitions. The selected observable to be analyzed is the two-neutron transfer intensity between the 0+ states in the parent and daughter nuclei. The framework in which the study is done is the Interacting Boson Model (IBM), including its version with configuration mixing (IBM-CM). In order to generate the wave functions of the isotope chains of interest, needed for calculating transfer intensities, previous systematic studies with IBM and IBM-CM are taken without changing the parameters. Results for two-neutron transfer intensities are presented for Zr, Hg and Pt isotopic chains using IBM-CM and, moreover, the same is done for Zr, Pt and Sm isotopic chains using IBM with just a single configuration, i.e., without using configuration mixing. In the case of Zr, the two-neutron transfer intensities between the ground states provide a clear observable indicating that normal and intruder configurations coexist in the low-lying spectrum and that they cross at A=98->100, and this could allow to disentangle whether or not shape coexistence is inducing a given QPT. In the case of Pt, where shape coexistence is present and the regular and the intruder configurations cross for the ground state, there is almost no influence in the value of the two-neutron transfer, neither in the case of Hg where the ground state always has regular nature. For the Sm isotope chain that is one of the quantum phase transition paradigms, the value of the two-neutron transfer is strongly affected.
description: To be published in the Chinese Physics C
Permutations generated by a stack of depth 2 and an infinite stack in series
Creators: name: Elder, Murray
Publisher: name: arXiv
Year: 2005
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05

description: We prove that the set of permutations generated by a stack of depth two and an infinite stack in series has a basis (defining set of forbidden patterns) consisting of 20 permutations of length 5, 6, 7 and 8. We prove this via a ``canonical'' generating algorithm.
description: 14 pages, 6 figures, 2 tables. To appear in Electronic Journal of Combinatorics
The Beylkin-Cramer Summation Rule and A New Fast Algorithm of Cosmic Statistics for Large Data Sets
Creators: name: Feng, Long-long
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on the Beylkin-Cramer summation rule, we introduce a new fast algorithm that enable us to explore the high order statistics efficiently in large data sets. Central to this technique is to make decomposition both of fields and operators within the framework of multi-resolution analysis (MRA), and realize theirs discrete representations. Accordingly, a homogenous point process could be equivalently described by a operation of a Toeplitz matrix on a vector, which is accomplished by making use of fast Fourier transformation. The algorithm could be applied widely in the cosmic statistics to tackle large data sets. Especially, we demonstrate this novel technique using the spherical, cubic and cylinder counts in cells respectively. The numerical test shows that the algorithm produces an excellent agreement with the expected results. Moreover, the algorithm introduces naturally a sharp-filter, which is capable of suppressing shot noise in weak signals. In the numerical procedures, the algorithm is somewhat similar to particle-mesh (PM) methods in N-body simulations. As scaled with $O(N\log N)$, it is significantly faster than the current particle-based methods, and its computational cost does not relies on shape or size of sampling cells. In addition, based on this technique, we propose further a simple fast scheme to compute the second statistics for cosmic density fields and justify it using simulation samples. Hopefully, the technique developed here allows us to make a comprehensive study of non-Guassianity of the cosmic fields in high precision cosmology. A specific implementation of the algorithm is publicly available upon request to the author.
description: 27 pages, 9 figures included. revised version, changes include (a) adding a new fast algorithm for 2nd statistics (b) more numerical tests including counts in asymmetric cells, the two-point correlation functions and 2nd variances (c) more discussions on technica
A BIO-ECONOMIC DYNAMIC PROGRAMMING ANALYSIS OF THE SEASONAL SUPPLY RESPONSE BY FLORIDA DAIRY PRODUCERS
Creators: name: Gao, Xiaoming
name: Spreen, Thomas H.
name: Delorenzo, Michael A.
name: Gao, Xiaoming
name: Spreen, Thomas H.
name: Delorenzo, Michael A.
Publisher: name: Unknown
Year: 1992
Subjects: Demand and Price Analysis

description: Seasonal price premiums have been proposed as a means of dampening the highly seasonal patterns of milk production in Florida. A Markov decision bio-economic model of the breeding and replacement decisions was solved via stochastic dynamic programming and used to analyze the potential supply response to seasonal price premiums. The results of the analysis suggest that the seasonal milk supply in Florida is highly price inelastic.
Exact Extended Supersymmetry on a Lattice: Twisted N=2 Super Yang-Mills in Two Dimensions
Creators: name: D'Adda, Alessandro
name: Kanamori, Issaku
name: Kawamoto, Noboru
name: Nagata, Kazuhiro
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a lattice action for two dimensional super Yang-Mills theory with a twisted N=2 supersymmetry. The extended supersymmetry is fully and exactly realized on the lattice. The method employed is quite general and its extension to the N=4 supersymmetry in four dimensions is briefly presented. The lattice has a new type of ``fermionic'' links, where odd Grassmann variables, supercharges and fermionic connections sit. The Leibniz rule is preserved on the lattice, although in a modified ``shifted'' form that takes into account the link nature of both derivatives and supercharges. Superfields are semi-local objects and superfield expansion is naturally embedded in the lattice structure. The Dirac-Kähler twist generates the extended twisted supersymmetry, turning the multiplicity of species doublers into the multiplicity due to the extended supersymmetry. In this way the balance between bosonic and fermionic degrees of freedom is preserved.
description: 15 pages, 11 figures
A Principal-Agent Analysis of the Family: Implications for the Welfare State
Creators: name: Munro, Lauchlan
name: Munro, Lauchlan
Publisher: name: Unknown
Year: 1999
Subjects: Institutional and Behavioral Economics

description: The principal-agent literature has focussed on situations where both principal and agent are assumed to be capable of defining and defending their own interests. The principal-agent literature has thus ignored an important set of cases where the principal is incapable of acting on her own behalf, and so is assigned an agent by law or custom. Such cases account for around 40% of humanity and for a similarly substantial proportion of all principal-agent interactions. This paper applies principal-agent analysis to one such case, the family, where the child is taken as the principal and the parent is her agent. The principal-agent problem within families creates a prima facie case for state interventions to protect child-principals, since some parents will shirk and the consequences of such shirking may be serious and irreversible damage to the child-principal, who cannot defend herself. The principal-agent perspective on the family sheds new light on two old debates: about whether state welfare services should be provided in cash or in kind, and about user fees for social services involving children.
Bannozyma arctica Q. M. Wang, F. Y. Bai, M. Groenew. & Boekhout 2020, sp. nov.
Creators: name: Li, A. - H.
name: Yuan, F. - X.
name: Groenewald, M.
name: Bensch, K.
name: Yurkov, A. M.
name: Li, K.
name: Han, P. - J.
name: Guo, L. - D.
name: Aime, M. C.
name: Sampaio, J. P.
name: Jindamorakot, S.
name: Turchetti, B.
name: Inacio, J.
name: Fungsin, B.
name: Wang, Q. - M.
name: Bai, F. - Y.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Microbotryomycetes
Chrysozymaceae
Bannozyma
Bannozyma arctica

description: Bannozyma arctica Vishniac & M. Takash. ex Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout, sp. nov. MycoBank MB831713.
For description see Int. J. Syst. Evol. Microbiol. 60(5): 1217 (2010).
 Holotype: CBS 9278 (preserved in a metabolically inactive state).
 Synonyms: Rhodotorula arctica Vishniac & M. Takash., Int. J. Syst. Evol. Microbiol. 60(5): 1217 (2010), nom. inval., Art. 40.7 (Shenzhen).
 = Bannozyma arctica Vishniac & M. Takash. ex Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout, Stud. Mycol. 81: 183 (2015), nom. inval., Art. 40.7 (Shenzhen).
description: Published as part of Li, A. - H., Yuan, F. - X., Groenewald, M., Bensch, K., Yurkov, A. M., Li, K., Han, P. - J., Guo, L. - D., Aime, M. C., Sampaio, J. P., Jindamorakot, S., Turchetti, B., Inacio, J., Fungsin, B., Wang, Q. - M. & Bai, F. - Y., 2020, Diversity and phylogeny of basidiomycetous yeasts from plant leaves and soil: Proposal of two new orders, three new families, eight new genera and one hundred and seven new species, pp. 17-140 in Studies In Mycology 96 on page 132, DOI: 10.1016/j.simyco.2020.01.002, http://zenodo.org/record/10497182
Two loop correction to the Gribov mass gap equation in Landau gauge QCD
Creators: name: Gracey, J. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We determine the two loop correction to Gribov's mass gap equation for quantum chromodynamics in the Landau gauge in the MSbar scheme by computing the two loop correction to the horizon condition derived from Zwanziger's local renormalizable Lagrangian which incorporates the Gribov parameter. We verify that with the explicit result, the two loop ghost propagator is enchanced in the infrared.
description: 8 latex pages
What Malaysian Software Students Think about Testing?
Creators: name: Capretz, Luiz Fernando
name: Basri, Shuib
name: Adili, Maythem
name: Amin, Aamir
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Software testing is one of the crucial supporting processes of software life cycle. Unfortunately for the software industry, the role is stigmatized, partly due to misperception and partly due to treatment of the role in the software industry. The present study aims to analyse this situation to explore what inhibit an individual from taking up a software testing career. In order to investigate this issue, we surveyed 82 senior students taking a degree in information technology, information and communication technology, and computer science at two Malaysian universities. The subjects were asked the PROs and CONs of taking up a career in software testing and what were the chances that they would do so. The study identified 7 main PROs and 9 main CONSs for starting a testing career, and indicated that the role of software tester has been perceived as a social role, with more soft skills connotations than technical implications. The results also show that Malaysian students have a more positive attitude towards software testing than their counterparts where similar investigations have been carried out.
description: pp. 195-196
Fermionic characters of arbitrary highest-weight integrable sl_{r+1}-modules
Creators: name: Ardonne, Eddy
name: Kedem, Rinat
name: Stone, Michael
Publisher: name: arXiv
Year: 2005
Subjects: subject: Representation Theory (math.RT)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We give a formula for the q-characters of arbitrary highest-weight integrable modules of sl_{r+1} as a linear combination of the fermionic q-characters of special fusion products of integrable modules. The coefficients in the sum are entries of the inverse matrix of generalized Kostka polynomials, which are in Z[q^{-1}]. In this paper we prove the relation between the character of the Feigin-Loktev graded tensor product and the generalized Kostka polynomial. We also prove the fermionic formula for the q-characters of the (unrestricted) fusion products of rectangular highest-weight integrable g-modules.
description: 31 pages, 2 figures; v2: final version, to appear in CMP
X-ray/UV Observing Campaign on the Mrk 279 AGN Outflow: A Global Fitting Analysis of the UV Absorption
Creators: name: Gabel, Jack R.
name: Arav, Nahum
name: Kaastra, Jelle S.
name: Kriss, Gerard A.
name: Behar, Ehud
name: Costantini, Elisa
name: Gaskell, C. Martin
name: Korista, Kirk T.
name: Laor, Ari
name: Paerels, Frits
name: Proga, Daniel
name: Quijano, Jessica Kim
name: Sako, Masao
name: Scott, Jennifer E.
name: Steenbrugge, Katrien C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of the intrinsic UV absorption in the Seyfert 1 galaxy Mrk 279 based on simultaneous long observations with the Hubble Space Telescope (41 ks) and the Far Ultraviolet Spectroscopic Explorer (91 ks). To extract the line-of-sight covering factors and ionic column densities, we separately fit two groups of absorption lines: the Lyman series and the CNO lithium-like doublets. For the CNO doublets we assume that all three ions share the same covering factors. The fitting method applied here overcomes some limitations of the traditional method using individual doublet pairs; it allows for the treatment of more complex, physically realistic scenarios for the absorption-emission geometry and eliminates systematic errors that we show are introduced by spectral noise. We derive velocity-dependent solutions based on two models of geometrical covering -- a single covering factor for all background emission sources, and separate covering factors for the continuum and emission lines. Although both models give good statistical fits to the observed absorption, we favor the model with two covering factors because: (a) the best-fit covering factors for both emission sources are similar for the independent Lyman series and CNO doublet fits; (b) the fits are consistent with full coverage of the continuum source and partial coverage of the emission lines by the absorbers, as expected from the relative sizes of the nuclear emission components; and (c) it provides a natural explanation for variability in the Ly$α$ absorption detected in an earlier epoch. We also explore physical and geometrical constraints on the outflow from these results.
description: 17 pages, 15 figures (9 color), emulateapj, accepted for publication in The Astrophysical Journal
Lattice density functional for colloid-polymer mixtures: Multi-occupancy versus Highlander version
Creators: name: Cuesta, Jose A.
name: Lafuente, Luis
name: Schmidt, Matthias
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider a binary mixture of colloid and polymer particles with positions on a simple cubic lattice. Colloids exclude both colloids and polymers from nearest neighbor sites. Polymers are treated as effective particles that are mutually non-interacting, but exclude colloids from neighboring sites; this is a discrete version of the (continuum) Asakura-Oosawa-Vrij model. Two alternative density functionals are proposed and compared in detail. The first is based on multi-occupancy in the zero-dimensional limit of the bare model, analogous to the corresponding continuum theory that reproduces the bulk fluid free energy of free volume theory. The second is based on mapping the polymers onto a multicomponent mixture of polymer clusters that are shown to behave as hard cores; the corresponding (Highlander) property of the extended model in strong confinement permits direct treatment with lattice fundamental measure theory. Both theories predict the same topology for the phase diagram with a continuous fluid-fcc freezing transition at low polymer fugacity and, upon crossing a tricritical point, a first-order freezing transition for high polymer fugacities with rapidly broadening density jump.
description: 9 pages, 4 figure files
Reworking the Standard Model of Competitive Markets: The Role of Fuzzy Logic and Genetic Algorithms in Modelling Complex Non-Linear Economic System
Creators: name: Smith, Peter
name: Smith, Peter
Publisher: name: Unknown
Year: 2004
Subjects: subject: Industrial Organization
subject: competition
subject: markets
subject: Walrasian Crier
subject: equilibrium
subject: fuzzy logic
subject: genetic algorithms
subject: evolutionary algorithms

description: Some aspects of economic systems (eg, nonlinearity, qualitative variables) are intractable when incorporated into models. The widespread practice of excluding them (or greatly limiting their role) produces deviations of unknown size and form between the resulting models and the reality they purport to represent. To explore this issue, and the extent to which a change in methodology can improve tractability, a combination of two techniques, fuzzy logic and genetic algorithms, was applied to the problem of how the sellers in a freely competitive market, if initially trading at different prices, can find their way to supply/demand equilibrium. A multi-agent model was used to simulate the evolution of autonomously- learnt rule-governed behaviour, (i), under perfect competition, and (ii), in a more commercially realistic environment. During the learning process, markets may lack a true equilibrium price, and therefore sellers in such a model cannot be price-takers in the conventional sense; instead, it was stipulated that they would set an asking price, buyers would shop around for cheap supply, and the sellers would revise their pricing policy according to its profitability. Each firm's pricing policy was embedded in a fuzzy ruleset; the rulesets were improved over time by successive passes of the genetic algorithm, using profit level as a measure of Darwinian fitness. The simulated evolution was repeated over a random sample of 10 markets. Under perfect competition, sellers' asking prices converged onto the theoretical equilibrium price. This performance was maintained when either uncertainty in demand or a more commercially realistic set of dynamics was introduced. However, when both these features were introduced simultaneously, different, substantially lower equilibrium prices were reached. In both cases, autonomous learning by the sellers suppressed the instability that might have been expected to result from the introduction of a number of nonlinearities. Other possible applications of the methodology are discussed, along with some of its implications.
Lusini: Studi sul monachesimo eustaziano (secoli XIV-XV)
Creators: name: Kropp, Manfred
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 79 (1995): Oriens christianus, Band 79
Lithium in the context of Multiple Populations in Globular Clusters
Creators: name: D'Antona, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Multiple Populations represent the standard for Globular Clusters (GC): a fraction (10-50%) of their stars have the same elemental abundances of halo stars of similar metallicity (first generation, or 1G), but the other stars (second generation, 2G) are characterised by patterns of light elements abundances which resemble those typical of gas processed by proton-capture reactions at high temperature. Consequently, we should naively expect that Lithium is destroyed in the 2G stars, but instead it is generally observed, at abundances only slightly depleted with respect to the 1G stars. After discussing the models for the formation of multiple populations, I examine the role of dilution with pristine gas and the possible role of the Asymptotic Giant Branch (AGB) scenario in accounting for the Lithium patterns in GC stars. Super-AGB and AGB yields of Lithium, produced by the Cameron Fowler mechanism in the `Hot Bottom Burning' convective envelopes, may help to explain the peculiar high Lithium in a few extreme 2G stars. On the other hand, modeling the abundances in mild 2G stars depends explicitly on whether the initial Li in the gas forming the 1G stars and the diluting gas of the 2G ones is that predicted by the Big Bang nucleosynthesis or the ~3 times smaller value observed at the surface of halo dwarfs.
description: 5 pages, 2 figures, Review for the Conference "Lithium in the Universe: to Be or not to Be?", Rome Monteporzio, Italy, November 18-22, 2019
Proposal for a CFT interpretation of Watts' differential equation for percolation
Creators: name: Flohr, Michael A. I.
name: Mueller-Lohmann, Annekathrin
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: G. M. T. Watts derived that in two dimensional critical percolation the crossing probability Pi_hv satisfies a fifth order differential equation which includes another one of third order whose independent solutions describe the physically relevant quantities 1, Pi_h, Pi_hv. We will show that this differential equation can be derived from a level three null vector condition of a rational c=-24 CFT and motivate how this solution may be fitted into known properties of percolation.
description: LaTeX, 20p, added references, corrected typos and additional contents
Stepping in, stepping out: the dynamic relationship between interlocking directors and CEO compensation
Creators: name: Chen, Su
Publisher: name: No Publisher Supplied
Year: 2021

description: Combining literature on CEO pay-setting process, board processes, and group dynamics, this study explores the influence of interlocking director changes on subsequent CEO pay raises. Particularly, I focus on two types of interlocking director changes—the decrease and increase in the number of interlocking directors—and consider their different impact on CEO pay raises. Furthermore, I hypothesize that the relationship between interlocking director changes and subsequent CEO pay raises is contingent on the CEO relative pay (of the changing interlocked firms vs. the focal firm), female board representation, and the interaction between CEO relative pay and female board representation. Based on 4,510 firm-year observations from 702 S&P firms over 10 years (2009-2018), I found that interlocking director decrease is negatively associated with subsequent CEO pay raises, yet there is no significant impact of interlocking director increase on subsequent CEO pay raises. The findings also support the moderating roles of the CEO relative pay and female board representation. This study provides a dynamic view for understanding the link between interlocking directors and CEO compensation as well as supports the value of female board representation.
'Technical, Objective, Equitable, and Uniform'? A Critique of the Colombian System for the Selection of Beneficiaries of Social Programmes, Sisben
Creators: name: McGee, Rosemary
name: McGee, Rosemary
Publisher: name: Unknown
Year: 1999
Subjects: Public Economics

description: Targeted poverty reduction programmes, advocated in contemporary poverty orthodoxy, heighten the importance of poverty information. Two divergent tendencies are discernible: tightened-up targeting through narrowed eligibility criteria; and a new epistemology of poverty based on qualitative and participatory methods. Statistical and qualitative analysis of findings from research in rural Colombia shows that the former approach is less "technical, objective, equitable and uniform" than it purports to be; and that the latter is more valid than is often appreciated. A good compromise is to combine the two and apply them in a spirit of "self-critical epistemological awareness" (Chambers 1997).
Two-band Fluctuation Exchange Study on the Superconductivity of $β'$-(BEDT-TTF)$_2$ICl$_2$ under High Pressure
Creators: name: Nakano, Tsuguhito
name: Kuroki, Kazuhiko
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the pressure dependence of the superconducting transition temperature of an organic superconductor $β'$-(BEDT-TTF)$_2$ICl$_2$ by applying the fluctuation exchange method to the Hubbard model on the original two-band lattice at 3/4-filling rather than the single band model in the strong dimerization limit. Our study is motivated by the fact that hopping parameters evaluated from a first-principles study suggest that the dimerization of the BEDT-TTF molecules is not so strong especially at high pressure. Solving the linearized Eliashberg's equation, a d$_{xy}$-wave-like superconducting state with realistic values of $T_c$ is obtained in a pressure regime somewhat higher than the actual experimental result. These results are similar to those obtained within the single band model in the previous study by Kino {\it et al}. We conclude that the resemblance to the dimer limit is due to a combination of a good Fermi surface nesting, a large density of states near the Fermi level, and a moderate dimerization, which cooperatively enhance electron correlation effects and also the superconducting $T_c$.
description: 6 pages, 8 figures
Additional file 2 of Fermented soy supplementation improves indicators of quality of life: a randomized, placebo-controlled, double-blind trial in adults experiencing heartburn
Creators: name: Fatani, Asmaa
name: Vaher, Kadi
name: Rivero-Mendoza, Daniela
name: Alabasi, Karima
name: Dahl, Wendy J.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Table S2. Gastrointestinal Symptom Response Scale (GSRS) syndrome scores and Gastro-oesophageal Reflux Disease Quality of Life Questionnaire (GERD-QOL) domains reported per period by adults with mild to moderate heartburn symptoms receiving fermented soy vs. placebo.