cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
VLT Diffraction Limited Imaging and Spectroscopy in the NIR: Weighing the black hole in Centaurus A with NACO
Creators: name: Haering-Neumayer, N.
name: Cappellari, M.
name: Rix, H. -W.
name: Hartung, M.
name: Prieto, M. A.
name: Meisenheimer, K.
name: Lenzen, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high spatial resolution near-infrared spectra and images of the nucleus of Centaurus A (NGC 5128) obtained with NAOS-CONICA at the VLT. The adaptive optics corrected data have a spatial resolution of 0.06" (FWHM) in K- and 0.11" in H-band, four times higher than previous studies. The observed gas motions suggest a kinematically hot disk which is orbiting a central object and is oriented nearly perpendicular to the nuclear jet. We model the central rotation and velocity dispersion curves of the [FeII] gas orbiting in the combined potential of the stellar mass and the (dominant) black hole. Our physically most plausible model, a dynamically hot and geometrically thin gas disk, yields a black hole mass of M_bh = (6.1 +0.6/-0.8) 10^7 M_sun. As the physical state of the gas is not well understood, we also consider two limiting cases: first a cold disk model, which completely neglects the velocity dispersion; it yields an M_bh estimate that is almost two times lower. The other extreme case is to model a spherical gas distribution in hydrostatic equilibrium through Jeans equation. Compared to the hot disk model the best-fit black hole mass increases by a factor of 1.5. This wide mass range spanned by the limiting cases shows how important the gas physics is even for high resolution data. Our overall best-fitting black hole mass is a factor of 2-4 lower than previous measurements. With our revised M_bh estimate, Cen A's offset from the M_bh-sigma relation is significantly reduced; it falls above this relation by a factor of ~2, which is close to the intrinsic scatter of this relation. (Abridged)
description: 12 pages, 14 figures, including minor changes following the referee report; accepted for publication in The Astrophysical Journal
Pair condensation and bound states in fermionic systems
Creators: name: Sedrakian, Armen
name: Clark, John W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the finite temperature-density phase diagram of an attractive fermionic system that supports two-body (dimer) and three-body (trimer) bound states in free space. Using interactions characteristic for nuclear systems, we obtain the critical temperature T_c2 for the superfluid phase transition and the limiting temperature T_c3 for the extinction of trimers. The phase diagram features a Cooper-pair condensate in the high-density, low-temperature domain which, with decreasing density, crosses over to a Bose condensate of strongly bound dimers. The high-temperature, low-density domain is populated by trimers whose binding energy decreases toward the density-temperature domain occupied by the superfluid and vanishes at a critical temperature T_c3 > T_c2.
description: 11 pages, 4 figures, uses RevTex; v2: 12 pages, 4 figures, matches published version
The Role of Dipole Charges in Black Hole Thermodynamics
Creators: name: Copsey, Keith
name: Horowitz, Gary T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Modern derivations of the first law of black holes appear to show that the only charges that arise are monopole charges that can be obtained by surface integrals at infinity. However, the recently discovered five dimensional black ring solutions empirically satisfy a first law in which dipole charges appear. We resolve this contradiction and derive a general form of the first law for black rings. Dipole charges do appear together with a corresponding potential. We also include theories with Chern-Simons terms and generalize the first law to other horizon topologies and more generic local charges.
description: 21 pages, v2: typos corrected, v3: more typos corrected
Operator Segal Algebras in Fourier Algebras
Creators: name: Forrest, Brian E.
name: Spronk, Nico
name: Wood, Peter J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 43A30; 46L07; 43A07; 47L25

description: Let G be a locally compact group, A(G) its Fourier algebra and L1(G) the space of Haar integrable functions on G. We study the Segal algebra SA(G)=A(G)\cap L1(G) in A(G). It admits an operator space structure which makes it a completely contractive Banach algebra. We compute the dual space of SA(G). We use it show that restriction operator u|->u|H:SA(G)->A(H), for some non-open closed subgroups H, is a surjective complete qutient map. We also show that if N is a non-compact closed subgroup, then the averaging operator tau_N:SA(G)->L1(G/N), tau_N u(sN)=\int_N u(sn)dn is a surjective complete quotient map. This puts an operator space perspective on the philosophy that SA(G) is ``locally A(G) while globally L1''. Also, using the operator space structure we can show that SA(G) is operator amenable exactly when when G is compact; and we can show that it is always operator weakly amenable. To obtain the latter fact, we use E. Samei's theory of hyper-Tauberian Banach algebras.
description: 20 pages
The Imprint of Relativistic Particles on the Anisotropies of the Stochastic Gravitational-Wave Background
Creators: name: Dall'Armi, Lorenzo Valbusa
name: Ricciardone, Angelo
name: Bartolo, Nicola
name: Bertacca, Daniele
name: Matarrese, Sabino
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Stochastic Gravitational-Wave Background (SGWB) is expected to be a key observable for Gravitational-Wave (GW) interferometry. Its detection will open a new window on early Universe cosmology, on the astrophysics of compact objects and, as shown in this Letter, on the particle physics content of the Universe. In this Letter we show that, besides their effects on the Cosmic Microwave Background (CMB) and on Large Scale Structure (LSS), relativistic particles in the early Universe leave a clear imprint on the anisotropies of the SGWB. In particular we show that a change in the number of decoupled relativistic particles shifts the angular power spectrum of the SGWB, as both the Sachs-Wolfe (SW) and the Integrated Sachs-Wolfe (ISW) terms are affected. Being very large-angle effects, these lead to new testable predictions for future GW interferometers.
description: 5 pages, 3 figures
Airline network inventory control policy : an application of Markov Decision Processes and Simulation
Creators: name: Biswanger, Kyle Adrian
Publisher: name: University of British Columbia
Year: 2009

description: In this thesis an airline network inventory control policy is developed. The inventory problem being faced differs from traditional hierarchical inventory problems. In this problem the inventory system is composed of a network of warehouses where demand is observed between warehouses and inventory "consumed" from one warehouse is "provided" to another. The control policy is developed using two modeling techniques: Dynamic Programming and Simulation. Dynamic programming, or Markov Decision Processes, is used to help define a control policy. The limitations imposed by the use of Dynamic Programming are overcome by implementing the results in a Simulation model. The policy resulting from this analysis demonstrates the potential to save $390,000 per year with minimal operational impact to Canadian Airlines International. This represents a 60% reduction in non-service related equipment movements.
Bi-domain state in the exchange bias system FeF2/Ni
Creators: name: Petracic, O.
name: Li, Zhi-Pan
name: Roshchin, Igor V.
name: Viret, M.
name: Morales, R.
name: Batlle, X.
name: Schuller, Ivan K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Independently exchange biased subsystems can coexist in FeF2/Ni bilayers after various field-cooling protocols. We find double hysteresis loops for intermediate cooling fields, while for small or large cooling fields a negatively or positively shifted single loop, respectively, are encountered. Both the subloops and the single loops have the same absolute value of the exchange bias field, mu_0 H_E = 0.09 T. This suggests that the antiferromagnet breaks into two magnetic subsystems with opposite signs but equal magnitude of bias acting on the ferromagnet. In this case the ferromagnet does not experience an average bias from the antiferromagnet but rather two independent subsystems ('bi-domain' state). This idea is confirmed by micromagnetic simulations including the effect of the antiferromagnet. We also present experiments, where thermally activated motion of these antiferromagnetic 'domain' boundaries can be achieved.
CONSUMER WILLINGNESS TO PAY FOR REDUCED PESTICIDE RESIDUES IN TOMATOES: THE TURKISH CASE
Creators: name: Akgungor, Sedef
name: Miran, Bulent
name: Abay, Canan
name: Akgungor, Sedef
name: Miran, Bulent
name: Abay, Canan
Publisher: name: Unknown
Year: 1999
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: pesticide residues
subject: food safety
subject: consumer demand

description: The paper investigates the Turkish consumers' willingness to pay for a label that guarantees that pesticide residues in foods do not cause health problems. Contingent valuation survey was conducted to 1005 randomly selected households to elicit tomato purchasing behavior under alternative prices and residue scenarios. A tobit model was used to estimate a demand model. To determine the probability of purchase, a probit model was estimated.
Additional file 1 of Cost-effectiveness of screening of coronary artery disease in patients with type 2 DIABetes at a very high cardiovascular risk (SCADIAB study) rational and design
Creators: name: Mohammedi, Kamel
name: Préaubert, Nathalie
name: Cariou, Tanguy
name: Rigalleau, Vincent
name: Foussard, Ninon
name: Piazza, Laurent
name: Bairras-Martin, Céline
name: Couffinhal, Thierry
name: Bezin, Julien
name: Benard, Antoine
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 60506 Virology
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Codes used to identify inclusion and exclusion criteria.
Program Pendampingan Peningkatan Kapasitas Guru
Creators: name: Herianto
Publisher: name: Zenodo
Year: 2020
Subjects: Peningkatan Kapasitas Guru
Pendampingan Guru
Penelitian Tindakan Kelas

description: Program Pendampingan Peningkatan Kapasitas Guru ini dilaksanakan oleh Ganggawa Institut, SEAAM, PGRI Kabupaten Sidrap dan Pemerintah Kabupaten Sidrap. Kegiatan dilaksanakan pada hari Ahad tanggal 19 Juli 2020 melalui aplikasi Zoom. Kegiatan berlangsung dua sesi. Sesi pertama pada pukul 10.00-12 WITA dipandu Akmal Riswandi dan Ruslan Rasyid, M.Pd selaku narasumber dengan Tema: Penggunaan Teknologi sebagai Media Pembelajaran. Sesi kedua pada pukul 14.00 -16.00 WITA dipandu Ahmad Musawwir Saleh dan narusumber, Herianto, M.Pd. dengan tema: Penelitian Tindakan Kelas
Quantum Size Effects in the Magnetic Susceptibility of a Metallic Nanoparticle
Creators: name: Roda-Llordes, M.
name: Gonzalez-Ballestero, C.
name: López, A. E. Rubio
name: Martínez-Pérez, M. J.
name: Luis, F.
name: Romero-Isart, O.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We theoretically study quantum size effects in the magnetic response of a spherical metallic nanoparticle (e.g. gold). Using the Jellium model in spherical coordinates, we compute the induced magnetic moment and the magnetic susceptibility for a nanoparticle in the presence of a static external magnetic field. Below a critical magnetic field the magnetic response is diamagnetic, whereas above such field the magnetization is characterized by sharp, step-like increases of several tenths of Bohr magnetons, associated with the Zeeman crossing of energy levels above and below the Fermi sea. We quantify the robustness of these regimes against thermal excitations and finite linewidth of the electronic levels. Finally, we propose two methods for experimental detection of the quantum size effects based on the coupling to superconducting quantum interference devices.
description: 5+6 pages, 3+3 figures
Additional file 2 of Direct healthcare resource utilisation, health-related quality of life, and work productivity in patients with moderate rheumatoid arthritis: an observational study
Creators: name: Galloway, James
name: Edwards, Julie
name: Bhagat, Shweta
name: Parker, Ben
name: Tan, Ai Lyn
name: Maxwell, James
name: Wallington, Mike
name: Blanthorn-Hazell, Sophee
name: Bellamy, Claire
name: Cole, Zoe
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Supplementary Table e2. on “Costs for healthcare resource use in the 12 months prior to enrolment” provided in Word .doc format.
Superconducting properties of ultrathin Bi2Sr2CaCu2O8+x single crystals
Creators: name: You, L. X.
name: Yurgens, A.
name: Winkler, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We use Ar-ion milling to thin Bi2212 single crystals down to a few nanometers or one-to-two (CuO2)2 layers. With decreasing the thickness, superconducting transition temperature gradually decreases to zero and the in-plane resistivity increases to large values indicating the existence of a superconductor-insulator transition in ultrathin Bi2212 single crystals.
description: 17 pages, 6 figures, to appear in J. Appl. Phys. 98(3) 2005
Supersmoothing through Slow Contraction
Creators: name: Cook, William G.
name: Glushchenko, Iryna A.
name: Ijjas, Anna
name: Pretorius, Frans
name: Steinhardt, Paul J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Performing a fully non-perturbative analysis using the tools of numerical general relativity, we demonstrate that a period of slow contraction is a `supersmoothing' cosmological phase that homogenizes, isotropizes and flattens the universe both classically and quantum mechanically and can do so far more robustly and rapidly than had been realized in earlier studies.
description: 6 pages, 3 figures
INCORPORATING QUADRATIC SCALE CURVES IN INVERSE DEMAND SYSTEMS
Creators: name: Beach, Robert H.
name: Holt, Matthew T.
name: Beach, Robert H.
name: Holt, Matthew T.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Demand and Price Analysis
subject: Research Methods/ Statistical Methods
subject: Antonelli matrix
subject: inverse demands
subject: negative semidefinite
subject: quadratic scale curves

description: In this paper we introduce inverse demand systems that include quadratic scale terms. These systems are similar to regular quadratic demand systems introduced by Howe, Pollack, and Wales. A unique feature of these specifications is that they maintain linear scale curves as a special case. For illustrative purposes we estimate the Normalized Quadratic Inverse Demand-Quadratic Scale System using monthly South Atlantic fish landings and valuation data, 1980-1996. In estimation concavity is maintained locally, and the rank reduction procedures advocated by Diewert and Wales (1988b) are employed. The estimated model is then used to obtain welfare estimates associated with catch restrictions.
Quantifying causal influences in the presence of a quantum common cause
Creators: name: Gachechiladze, Mariami
name: Miklin, Nikolai
name: Chaves, Rafael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum mechanics challenges our intuition on the cause-effect relations in nature. Some fundamental concepts, including Reichenbach's common cause principle or the notion of local realism, have to be reconsidered. Traditionally, this is witnessed by the violation of a Bell inequality. But are Bell inequalities the only signature of the incompatibility between quantum correlations and causality theory? Motivated by this question we introduce a general framework able to estimate causal influences between two variables, without the need of interventions and irrespectively of the classical, quantum, or even post-quantum nature of a common cause. In particular, by considering the simplest instrumental scenario -- for which violation of Bell inequalities is not possible -- we show that every pure bipartite entangled state violates the classical bounds on causal influence, thus answering in negative to the posed question and opening a new venue to explore the role of causality within quantum theory.
description: 13 pages, 2 figures
Some cubic birth and death processes and their related orthogonal polynomials
Creators: name: Gilewicz, Jacek
name: Leopold, Elie
name: Ruffing, Andreas
name: Valent, Galliano
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The orthogonal polynomials with recurrence relation \[(\la\_n+μ\_n-z) F\_n(z)=μ\_{n+1} F\_{n+1}(z)+\la\_{n-1} F\_{n-1}(z)\] with two kinds of cubic transition rates $\la\_n$ and $μ\_n,$ corresponding to indeterminate Stieltjes moment problems, are analyzed. We derive generating functions for these two classes of polynomials, which enable us to compute their Nevanlinna matrices. We discuss the asymptotics of the Nevanlinna matrices in the complex plane.
description: latex2e, 17 pages
THE COST OF WHEAT DIVERSITY IN CHINA
Creators: name: Meng, Erika C.H.
name: Smale, Melinda
name: Rozelle, Scott
name: Ruifa, Hu
name: Huang, Jikun
name: Meng, Erika C.H.
name: Smale, Melinda
name: Rozelle, Scott
name: Ruifa, Hu
name: Huang, Jikun
Publisher: name: Unknown
Year: 1999
Subjects: Crop Production/Industries
Productivity Analysis

description: Initial efforts to estimate the effects on productivity of diversity among modern varieties in a production function framework have been unsatisfactory in at least two respects. First, the conventional primal approach estimates the marginal effects of diversity on technical efficiency but is unable to examine issues of allocative efficiency since it does not explicitly address producer behavior with respect to prices. Second, measures of genetic diversity used in previous studies may not have fully represented the diversity present in the crop. The development and incorporation of a biologically meaningful index of crop genetic diversity into an economic decision-making model is not straightforward. Previous studies have most often used diversity measures based on named varieties or pedigree information. In this paper, we employ recently developed methods to classify the wheat cultivars grown in China into morphology groups, constructing an index of spatial diversity adapted from the ecology literature using these groups and variety area shares. Since crop area allocations are choice variables, we specify crop genetic diversity as endogenous in a simultaneous system with a cost function and input shares. This approach provides a stronger conceptual linkage between crop genetic diversity, policy variables, and the economic decisions of farmers. The unique data source combines information on variety characteristics and variety area shares with policy, economic and environmental variables for the seven major wheat-producing provinces in China during the time period from 1982 to 1997. Results suggest that the crop genetic diversity, measured as the "equitability" of the spatial distribution of wheat morphology groups, has an economic cost. Future work will further investigate the relationship of crop genetic diversity to economic efficiency and policies.
FIGHTING RURAL POVERTY IN LATIN AMERICA: NEW EVIDENCE AND POLICY
Creators: name: Valdes, Alberto
name: Lopez, Ramon E.
name: Valdes, Alberto
name: Lopez, Ramon E.
Publisher: name: Unknown
Year: 1999
Subjects: Community/Rural/Urban Development
Food Security and Poverty

description: We synthesize recent case studies on rural poverty in six Latin American countries, plus two thematic studies. We find that the return to education in farming is surprisingly small; land redistribution increases total farm output, but has mixed effects on income; and urban economic growth significantly reduces rural poverty.
DOES BRANDED FOOD PRODUCT ADVERTISING HELP OR HURT FARMERS?
Creators: name: Zhang, Mingxia
name: Sexton, Richard J.
name: Alston, Julian M.
name: Zhang, Mingxia
name: Sexton, Richard J.
name: Alston, Julian M.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Marketing
subject: FOS: Economics and business

description: A two-stage model is developed to study food processing firms' brand advertising and its welfare effects on farmers in a duopsony/duoploy setting. In stage 1 firms compete to differentiate their products through brand advertising, and in stage 2 firms engage in quality competition. Farmers may benefit or lose form brand advertising under alternative market conditions.
Evidence for Macroscopic Quantum Tunneling of Phase Slips in Long One-Dimensional Superconducting Al Wires
Creators: name: Altomare, Fabio
name: Chang, Albert M.
name: Melloch, Michael R.
name: Hong, Yuguang
name: Tu, Charles W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Quantum phase slips have received much attention due to their relevance to superfluids in reduced dimensions and to models of cosmic string production in the Early Universe. Their establishment in one-dimensional superconductors has remained controversial. Here we study the nonlinear voltage-current characteristics and linear resistance in long superconducting Al wires with lateral dimensions $\sim$ 5 nm. We find that, in a magnetic field and at temperatures well below the superconducting transition, the observed behaviors can be described by the non-classical, macroscopic quantum tunneling of phase slips, and are inconsistent with the thermal-activation of phase slips.
description: 4 pages, 4 figures, submitted to Phys. Rev. Lett. Manuscript, figure and EPAPS have been revised to streamline the presentation. Added erratum Fixed title in the erratum
Security Smells in Android
Creators: name: Ghafari, Mohammad
name: Gadient, Pascal
name: Nierstrasz, Oscar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The ubiquity of smartphones, and their very broad capabilities and usage, make the security of these devices tremendously important. Unfortunately, despite all progress in security and privacy mechanisms, vulnerabilities continue to proliferate. Research has shown that many vulnerabilities are due to insecure programming practices. However, each study has often dealt with a specific issue, making the results less actionable for practitioners. To promote secure programming practices, we have reviewed related research, and identified avoidable vulnerabilities in Android-run devices and the "security code smells" that indicate their presence. In particular, we explain the vulnerabilities, their corresponding smells, and we discuss how they could be eliminated or mitigated during development. Moreover, we develop a lightweight static analysis tool and discuss the extent to which it successfully detects several vulnerabilities in about 46,000 apps hosted by the official Android market.
description: 2017 IEEE 17th International Working Conference on Source Code Analysis and Manipulation (SCAM)
Observations of Solar Flare Doppler Shift Oscillations with the Bragg Crystal Spectrometer on Yohkoh
Creators: name: Mariska, John T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Oscillations in solar coronal loops appear to be a common phenomenon. Transverse and longitudinal oscillations have been observed with both the Transition Region and Coronal Explorer and Extreme Ultraviolet Imaging Telescope imaging experiments. Damped Doppler shift oscillations have been observed in emission lines from ions formed at flare temperatures with the Solar Ultraviolet Measurements of Emitted Radiation Spectrometer. These observations provide valuable diagnostic information on coronal conditions and may help refine our understanding of coronal heating mechanisms. I have initiated a study of the time dependence of Doppler shifts measured during flares with the Bragg Crystal Spectrometer (BCS) on Yohkoh. This Letter reports the detection of oscillatory behavior in Doppler shifts measured as a function of time in the emission lines of S XV and Ca XIX. For some flares, both lines exhibit damped Doppler shift oscillations with amplitudes of a few km/s and periods and decay times of a few minutes. The observations appear to be consistent with transverse oscillations. Because the BCS observed continuously for almost an entire solar cycle, it provides numerous flare data sets, which should permit an excellent characterization of the average properties of the oscillations.
description: Accepted by ApJ Letters
Spitzer Reveals Hidden Quasar Nuclei in Some Powerful FR II Radio Galaxies
Creators: name: Ogle, P. M.
name: Whysong, D.
name: Antonucci, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a Spitzer mid-infrared survey of 42 Fanaroff-Riley class II radio galaxies and quasars from the 3CRR catalog at redshift z<1. All of the quasars and 45+/-12% of the narrow-line radio galaxies have a mid-IR luminosity of nuLnu(15 micron) > 8E43 erg/s, indicating strong thermal emission from hot dust in the active galactic nucleus. Our results demonstrate the power of Spitzer to unveil dust-obscured quasars. The ratio of mid-IR luminous narrow-line radio galaxies to quasars indicates a mean dust covering fraction of 0.56+/-0.15, assuming relatively isotropic emission. We analyze Spitzer spectra of the 14 mid-IR luminous narrow-line radio galaxies thought to host hidden quasar nuclei. Dust temperatures of 210-660 K are estimated from single-temperature blackbody fits to the low and high-frequency ends of the mid-IR bump. Most of the mid-IR luminous radio galaxies have a 9.7 micron silicate absorption trough with optical depth <0.2, attributed to dust in a molecular torus. Forbidden emission lines from high-ionization oxygen, neon, and sulfur indicate a source of far-UV photons in the hidden nucleus. However, we find that the other 55+/-13% of narrow-line FR II radio galaxies are weak at 15 micron, contrary to single-population unification schemes. Most of these galaxies are also weak at 30 micron. Mid-IR weak radio galaxies may constitute a separate population of nonthermal, jet-dominated sources with low accretion power
description: 34 pages, 8 figures, ApJ submitted
A LINEAR PROGRAMMING SOLUTION TO SOME MARKET ALLOCATION PROBLEMS
Creators: name: Piggott, Roley R.
name: Piggott, Roley R.
Publisher: name: Unknown
Year: 1975
Subjects: Research Methods/ Statistical Methods

description: Certain market allocation problems involving linear average net revenue functions can be solved by linear programming. The technique can be applied to an objective function derived from linear marginal net revenue functions, the objective being to force each marginal net revenue as near to zero as possible given the constraint set. If a particular problem is suited to a linear programming solution, researchers may prefer to use this technique rather than more sophisticated optimization methods.
Quantum superposition principle and gravitational collapse: Scattering times for spherical shells
Creators: name: Ambrus, M.
name: Hajicek, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A quantum theory of spherically symmetric thin shells of null dust and their gravitational field is studied. In Nucl. Phys. 603 (2001) 515 (hep-th/0007005), it has been shown how superpositions of quantum states with different geometries can lead to a solution of the singularity problem and black hole information paradox: the shells bounce and re-expand and the evolution is unitary. The corresponding scattering times will be defined in the present paper. To this aim, a spherical mirror of radius R_m is introduced. The classical formula for scattering times of the shell reflected from the mirror is extended to quantum theory. The scattering times and their spreads are calculated. They have a regular limit for R_m\to 0 and they reveal a resonance at E_m = c^4R_m/2G. Except for the resonance, they are roughly of the order of the time the light needs to cross the flat space distance between the observer and the mirror. Some ideas are discussed of how the construction of the quantum theory could be changed so that the scattering times become considerably longer.
description: 30 pages and 5 figures; the post-referee version: shortened and some formulations improved; to be published in Physical Review
D8.3. First version of the exploitation and dissemination plan of results
Creators: name: Argarate, Nerea
name: Resch, Susanne
name: Briz, Nerea
name: Bijelic, Goran
name: Hann, Julia
Publisher: name: Zenodo
Year: 2022
Subjects: DeDNAed project, Plan for Dissemination and Exploitation of Project Results (PDER)

description: DeDNAed, Exploitation and dissemination plan report
Anomalous waiting times in high-frequency financial data
Creators: name: Scalas, Enrico
name: Gorenflo, Rudolf
name: Luckock, Hugh
name: Mainardi, Francesco
name: Mantelli, Maurizio
name: Raberto, Marco
Publisher: name: arXiv
Year: 2005
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: In high-frequency financial data not only returns, but also waiting times between consecutive trades are random variables. Therefore, it is possible to apply continuous-time random walks (CTRWs) as phenomenological models of the high-frequency price dynamics. An empirical analysis performed on the 30 DJIA stocks shows that the waiting-time survival probability for high-frequency data is non-exponential. This fact imposes constraints on agent-based models of financial markets.
description: 2 figures; preprint of a paper published on Quantitative Finance; substantially new version of an old submission (cond-mat/0310305)
Performance Evaluation of Dental Flosses Pre- and Post-Utilization
Creators: name: A.K., Stavrakis,
name: S., Kojić,
name: B., Petrović,
name: I., Nešković,
name: G.M., Stojanović,
Publisher: name: figshare
Year: 2022
Subjects: subject: 110599 Dentistry not elsewhere classified
subject: FOS: Clinical medicine

description: Dental floss is an oral hygiene product used to remove food and plaque in places where toothbrushes cannot reach. Even though over the years since its introduction some research in suitable materials has been performed, thread cracking and wear can still compromise efficiency. The aim of this study was to examine the morphological properties of four different commercially available dental floss types before and after use. For that purpose, scanning electron microscopy and optical microscopy were used to assess the flosses before and after use, and tension testing was performed to determine any degradation in the floss performance after utilization. The analyzed floss samples verify the hypothesis that the properties of the floss need to be known in depth, before recommending a specific type to patients for daily use in all clinical indications.
Upsilon and Chi_b analyses at CLEO
Creators: name: Duboscq, Jean
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: I detail recent work done by the CLEO collaboration using data gathered at the CESR accelerator concerning the Upsilon system. Results include B_S production at the Upsilon(5S), decays of the Upsilon(nS) (n=1,2,3) to tau pairs, the Upsilon di-electron width, decays of the Upsilon to two hadrons and a photon, and the observation of the first di-pion transition between chi_b states.
description: 8 pages. To be published in the Proceedings of the International Europhysics Conference on High Energy Physics, July 2005, Lisboa, Portugal
Measurement of the Gluino Mass via Cascade Decays for SPS 1a
Creators: name: Gjelsten, B. K.
name: Miller, D. J.
name: Osland, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: If R-parity conserving supersymmetry is realised with masses below the TeV scale, sparticles will be produced and decay in cascades at the LHC. In the case of a neutral LSP, which will not be detected, decay chains cannot be fully reconstructed, complicating the mass determination of the new particles. In this paper we extend the method of obtaining masses from kinematical endpoints to include a gluino at the head of a five-sparticle decay chain. This represents a non-trivial extension of the corresponding method for the squark decay chain. We calculate the endpoints of the new distributions and assess their applicability by examining the theoretical distributions for a variety of mass scenarios. The precision with which the gluino mass can be determined by this method is investigated for the mSUGRA point SPS 1a. Finally we estimate the improvement obtained from adding a Linear Collider measurement of the LSP mass.
description: 40 pages; extended discussion of errors
Additional file 1 of Enhanced home palliative care could reduce emergency department visits due to non-organic dyspnea among cancer patients: a retrospective cohort study
Creators: name: Hua-Shui Hsu
name: Tai-Hsien Wu
name: Chin-Yu Lin
name: Ching-Chun Lin
name: Tsung-Po Chen
name: Lin, Wen-Yuan
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Supplementary Table 1. Cancer types of home palliative care patients with dyspnea. Supplementary Table 2. Logistic regression models of home palliative care services in reducing emergency department visits based on each covariate.
title: What Would Be the Likely Impact of Large Progressive Proposals on the Black-White Wealth Gap?
title: What Would Be the Likely Impact of Large Progressive Proposals on the Black-White Wealth Gap?
titleType: AlternativeTitle
Creators: name: Weller, Christian
Publisher: name: University of Michigan
Year: 2024
Subjects: subject: Baby Bonds
subject: Racial Wealth Gap
subject: Wealth Inequality
subject: American Opportunity Accounts Act
subject: Assets
subject: Social Work
subject: FOS: Sociology
subject: Social Sciences

description: The goal of the Financial Independence policy conference held on September 16 and 17, 2024 in Washington, D.C. was to bring together experts from the asset and income fields to share theory, evidence, and best practices. The conference was divided into four sessions. The first two sessions were on Children’s Savings Accounts and Baby Bonds, the asset arm of the conference. The third session focused on the income arm. More specifically, it focused on Unconditional Cash Transfers, the Child Tax Credit, and Child Allowances. The final session focused on why solving poverty requires both asset and income proponents to come together. This policy brief is part of the Baby Bonds’ session.
description: My co-authors, Danyelle Solomon, and Connor Maxwell, created a simulation model to see how effective these policies could be in reducing the Black-White wealth gap. The simulations show three key results. First, all policies would shrink the Black-White wealth gap, but to varying degrees. Second, “Baby Bonds” would have the single largest impact, shrinking the average Black-White wealth gap by about one-fourth. Third, approximately half of the expected Black-White wealth gap would remain after one generation, even if all proposals were enacted. Additional policies such as immediate, large-scale targeted wealth transfers to Black households, whose wealth has been expropriated through the violent exploitation of slavery and subsequent oppression and discrimination, could eliminate the Black-White wealth gap.
Business Analytics Capabilities and Decision Quality: The Mediating Roles of Decision Speed and Comprehensiveness
Creators: name: Abdellatif, Mamdouh Abdallah Mohamed
name: Abubakar, A. Mohammed
name: Elayan, Malek Bakheet Haroun
name: Hayajneh, Jamal Abdelrahman.M.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Molecular Biology
subject: Neuroscience
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: This paper examines the nexus between business analytics and strategic decision facets using the resource-based theory. Analysis with partial least squares demonstrate that decision comprehensiveness and speed mediate the relationship between business analytics and decision quality. While fuzzy sets analysis demonstrates that business analytics, decision comprehensiveness, and speed are sufficient (but not necessary) conditions for decision quality. When firms utilize business analytics, decision speed and comprehensiveness are mutually inclusive. Theoretical and practical implications are offered.
title: When happy people make society unhappy: Emotions affect tax compliance behavior
Creators: name: Fochmann, Martin
name: Hechtner, Frank
name: Kirchler, Erich
name: Mohr, Peter N. C.
Publisher: name: Freie Universität Berlin
Year: 2025
Subjects: subject: Compliance attitudes
subject: Compliance behavior
subject: Emotions
subject: Tax evasion
subject: Experimental economics
classificationCode: 330
subject: Wirtschaft

description: Emotions affect judgments and decision making. Our paper presents a study to show that incidental background emotions (i.e., emotions not related to the actual decision) influence individuals’ tax compliance attitudes and behavior. A large-scale survey of 22,220 German taxpayers and a controlled laboratory experiment provide evidence that positive background emotions reduce willingness to comply compared to aversive (negative) background emotions. The participants in our survey show less favorable tax compliance attitudes on weekends, which are usually associated with more positive background emotions. These findings are supported by the results of a controlled laboratory experiment in which background emotions were induced by standardized pictures. Individuals choose to evade taxes more often after being exposed to positive emotions than after being exposed to aversive emotions.
Revisiting ligand-to-ligand charge transfer phosphorescence emission from zinc(II) diimine bis-thiolate complexes: it is actually thermally activated delayed fluorescence
Creators: name: Lüdtke, Nora
name: Kuhnt, Julia
name: Heil, Tabea
name: Steffen, Andreas
name: Marian, Christel M.
Publisher: name: TU Dortmund
Year: 2022
Subjects: subject: Density functional calculations
subject: Excited states
subject: Phosphorescence
subject: Thermally amplified delayed fluorescence
subject: Zinc
subject: 540

description: In this work we revisit and re-evaluate the photophysical behavior of the prototypical complex [Zn(SC6H4-4-R)2(phen)] as the most in-depth studied type of Zn(II)-based triplet state emitters. Previous reports suggest population of ligand-to-ligand charge transfer (LLCT) states via phenanthroline localized ππ* states, with an energy barrier between the 3ππ* and the bk;1/3LLCT states requiring thermal activation. Besides very weak prompt fluorescence, the dominant radiative mechanism was attributed to phosphorescence. Our photophysical studies, including temperature-dependent quantum yield determination and time-resolved luminescence measurements, reveal a high radiative rate constant kr=3.5×105 s−1 at room temperature and suggest thermally activated luminescence as the major emission path. High-level DFT/MRCI calculations confirm this assignment and provide deeper insight into the excited-state kinetics, including rate constants for the (reverse) intersystem crossing processes. Thus, our study demonstrates that further optimization of the photophysical properties of this type of Zn(II) triplet exciton emitter bears great potential for future application in devices.
description: ChemPhotoChem;7(1)
A SURVEY OF STUDENTS' ATTITUDES TO METHODS OF TEACHING FARM MANAGEMENT
Creators: name: Tanner, Carolyn
name: Tanner, Carolyn
Publisher: name: Unknown
Year: 1975
Subjects: Farm Management
Teaching/Communication/Extension/Profession

description: This paper presents the results of a survey of students' attitudes towards a variety of teaching methods. Included in the methods are a simple farm management game and a complex computer-based game. The results provide a basis for deciding the appropriateness of the teaching methods to the different facets of farm management courses.
Charge Transfer Inefficiency Studies for CCD Vertex Detectors at a LC
Creators: name: Sopczak, Andre
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The Linear Collider Flavour Identification (LCFI) collaboration studies CCD detectors for quark flavour identification in the framework of a future linear e+e- collider. The flavour identification is based on precision reconstruction of charged tracks very close to the interaction point. Therefore, this detector will be exposed to a high level of radiation and thus an important aspect of the vertex detector development are radiation hardness studies. Results of detailed simulations of the charged transport properties of a CCD prototype chip are reported and compared with initial measurements. The simulation program allows to study the effect of radiation damage after the exposure of the detector to a realistic radiation dose, which is expected in the environment of detector operation at a future LC.
description: 6 pages, 10 figures, Proceedings 2005 International Linear Collider Workshop - Stanford, U.S.A
On the complexity of algebraic numbers II. Continued fractions
Creators: name: Adamczewski, Boris
name: Bugeaud, Yann
Publisher: name: arXiv
Year: 2005
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J81, 11J70, 11B85, 68R15

description: The continued fraction expansion of an irrational number $α$ is eventually periodic if and only if $α$ is a quadratic irrationality. However, very little is known regarding the size of the partial quotients of algebraic real numbers of degree at least three. Because of some numerical evidence and a belief that these numbers behave like most numbers in this respect, it is often conjectured that their partial quotients form an unbounded sequence. More modestly, we may expect that if the sequence of partial quotients of an irrational number $α$ is, in some sense, "simple", then $α$ is either quadratic or transcendental. The term "simple" can of course lead to many interpretations. It may denote real numbers whose continued fraction expansion has some regularity, or can be produced by a simple algorithm (by a simple Turing machine, for example), or arises from a simple dynamical system... The aim of this paper is to present in a unified way several new results on these different approaches of the notion of simplicity/complexity for the continued fraction expansion of algebraic real numbers of degree at least three.
USING INPUT DEMAND AND PRODUCTION FUNCTION MODELS TO ASSESS THE NET BENEFITS OF DAIRY HERD IMPROVEMENT
Creators: name: Ryan, James G.
name: Ryan, James G.
Publisher: name: Unknown
Year: 1975
Subjects: Livestock Production/Industries

description: Two methods of evaluating (the net social benefits of the dairy herd-improvement scheme operated by the New South Wales Department of Agriculture are described. The first involves derivation of 'an input demand' function for the herd-recording aspect of the scheme and use of this function to estimate the economic surplus (net of both private and public costs) provided by the service. The second approach involves deriving a production function for milk from which it is possible to estimate the contribution herd-recording and artificial breeding have made to increasing milk yields per cow. Social benefits are shown to have been less than social costs for herd-recording, however dairy farmers have made net private gains. The herd-recording scheme has contained a regressive subsidy element. The production function approach show that artificial breeding and herd-recording were profitable complements in production.
Statistical properties of sampled networks
Creators: name: Lee, Sang Hoon
name: Kim, Pan-Jun
name: Jeong, Hawoong
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Physics and Society (physics.soc-ph)
subject: Methodology (stat.ME)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We study the statistical properties of the sampled scale-free networks, deeply related to the proper identification of various real-world networks. We exploit three methods of sampling and investigate the topological properties such as degree and betweenness centrality distribution, average path length, assortativity, and clustering coefficient of sampled networks compared with those of original networks. It is found that the quantities related to those properties in sampled networks appear to be estimated quite differently for each sampling method. We explain why such a biased estimation of quantities would emerge from the sampling procedure and give appropriate criteria for each sampling method to prevent the quantities from being overestimated or underestimated.
description: 8 pages, 11 figures