cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Astrometric-Spectroscopic Binary System HIP 50796: An Overmassive Companion
Creators: name: Torres, Guillermo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report spectroscopic observations of the star HIP 50796, previously considered (but later rejected) as a candidate member of the TW Hya association. Our measurements reveal it to be a single-lined binary with an orbital period of 570 days and an eccentricity of e = 0.61. The astrometric signature of this orbit was previously detected by the HIPPARCOS satellite in the form of curvature in the proper motion components, although the period was unknown at the time. By combining our radial velocity measurements with the HIPPARCOS intermediate data (abscissae residuals) we are able to derive the full three-dimensional orbit, and determine the dynamical mass of the unseen companion as well as a revised trigonometric parallax that accounts for the orbital motion. Given our primary mass estimate of 0.73 solar masses (mid-K dwarf), the companion mass is determined to be 0.89 solar masses, or about 20% larger than the primary. The likely explanation for the larger mass without any apparent contribution to the light is that the companion is itself a closer binary composed of M dwarfs. The near-infrared excess and X-ray emission displayed by HIP 50796 support this. Our photometric modeling of the excess leads to a lower limit to the mass ratio of the close binary of about q = 0.8, and individual masses of 0.44-0.48 solar masses and 0.41-0.44 solar masses. The new parallax (20.6 +/- 1.9 mas) is significantly smaller than the original HIPPARCOS value, and more precise.
description: 27 pages including 5 figures; to appear in The Astronomical Journal, January 2006 issue
The ${\bar c} c$ purity of $ψ(3770)$ and $ψ'$ challenged
Creators: name: Voloshin, M. B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is suggested that the resonance $ψ(3770)$ may contain a sizeable ($O(10%)$ in terms of the probability weight factor) four-quark component with the up- and down- quarks and antiquarks in addition to the $c {\bar c}$ pair, which component in itself has a substantial part with the isospin I=1. Furthermore such four-quark part of the wave function should also affect the properties of the $ψ'$ charmonium resonance through the $ψ(3770) - ψ'$ mixing previously considered in the literature. It is argued that an admixture of extra light quark pairs can explain a possible discrepancy between the theoretical expectations and the recent data on the non-$D {\bar D}$ decay width of the $ψ(3770)$ and the ratio of the yield of charged and neutral $D$ meson pairs in its decays, as well as on the extra rate of the $ψ'$ direct decay into light hadrons and the rate of the decay $ψ' \to π^0 J/ψ$. It is further argued that the suggested four-quark component of the wave function of the $ψ(3770)$ should give rise to a measurable rate of the decays $ψ(3770) \to ηJ/ψ$ and $ψ(3770) \to π^0 J/ψ$.
description: 13 pages
High-order minibands and interband Landau level reconstruction in graphene moire superlattice
Creators: name: Lu, Xiaobo
name: Tang, Jian
name: Wallbank, John R.
name: Wang, Shuopei
name: Shen, Cheng
name: Wu, Shuang
name: Chen, Peng
name: Yang, Wei
name: Zhang, Jing
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Yang, Rong
name: Shi, Dongxia
name: Efetov, Dmitri K.
name: Falko, Vladimir I.
name: Zhang, Guangyu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The propagation of Dirac fermions in graphene through a long-period periodic potential would result in a band folding together with the emergence of a series of cloned Dirac points (DPs). In highly aligned graphene/hexagonal boron nitride (G/hBN) heterostructures, the lattice mismatch between the two atomic crystals generates a unique kind of periodic structure known as a moiré superlattice. Of particular interests is the emergent phenomena related to the reconstructed band-structure of graphene, such as the Hofstadter butterfly, topological currents, gate dependent pseudospin mixing, and ballistic miniband conduction. However, most studies so far have been limited to the lower-order minibands, e.g. the 1st and 2nd minibands counted from charge neutrality, and consequently the fundamental nature of the reconstructed higher-order miniband spectra still remains largely unknown. Here we report on probing the higher-order minibands of precisely aligned graphene moiré superlattices by transport spectroscopy. Using dual electrostatic gating, the edges of these high-order minibands, i.e. the 3rd and 4th minibands, can be reached. Interestingly, we have observed interband Landau level (LL) crossinginducing gap closures in a multiband magneto-transport regime, which originates from band overlap between the 2nd and 3rd minibands. As observed high-order minibands and LL reconstruction qualitatively match our simulated results. Our findings highlight the synergistic effect of minibands in transport, thus presenting a new opportunity for graphene electronic devices.
Probabilistic state preparation of a single molecular ion by projection measurement
Creators: name: Vogelius, I. S.
name: Madsen, L. B.
name: Drewsen, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We show how to prepare a single molecular ion in a specific internal quantum state in a situation where the molecule is trapped and sympathetically cooled by an atomic ion and where its internal degrees of freedom are initially in thermal equilibrium with the surroundings. The scheme is based on conditional creation of correlation between the internal state of the molecule and the translational state of the collective motion of the two ions, followed by a projection measurement of this collective mode by atomic ion shelving techniques. State preparation in a large number of internal states is possible.
description: 4 pages, 2 figures, 2 tables
Exciton energy spectra in polyyne chains
Creators: name: Kutrovskaya, Stella
name: Demirchyan, Sevak
name: Osipov, Anton
name: Baryshev, Stepen
name: Zasedatelev, Anton
name: Lagoudakis, Pavlos
name: Kavokin, Alexey
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recently, we have experimentally observed signatures of sharp exciton peaks in the photoluminescence spectra of bundles of monoatomic carbon chains stabilized by gold nanoparticles and deposited on a glass substrate. Here, we estimate the characteristic energies of excitonic transitions in this complex quasi-one-dimensional nano-system with use of the variational method. We show that the characteristic energy scale for the experimentally observed excitonic fine structure is governed by the interplay between the hopping energy in a Van der Waals quasicrystal formed by parallel carbon chains, the neutral-charged exciton splitting and the positive-negative trion splitting. These three characteristic energies are an order of magnitude lower than the direct exciton binding energy.
description: 6 pages, 3 figures
Confidence limits of evolutionary synthesis models. IV Moving forward to a probabilistic formulation
Creators: name: Cervino, M.
name: Luridiana, V.
name: Cervino-Luridiana, N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Synthesis models predict the integrated properties of stellar populations. Several problems exist in this field, mostly related to the fact that integrated properties are distributed. To date, this aspect has been either ignored (as in standard synthesis models, which are inherently deterministic) or interpreted phenomenologically (as in Monte Carlo simulations, which describe distributed properties rather than explain them). We approach population synthesis as a problem in probability theory, in which stellar luminosities are random variables extracted from the stellar luminosity distribution function (sLDF). We derive the population LDF (pLDF) for clusters of any size from the sLDF, obtaining the scale relations that link the sLDF to the pLDF. We recover the predictions of standard synthesis models, which are shown to compute the mean of the sLDF. We provide diagnostic diagrams and a simplified recipe for testing the statistical richness of observed clusters, thereby assessing whether standard synthesis models can be safely used or a statistical treatment is mandatory. We also recover the predictions of Monte Carlo simulations, with the additional bonus of being able to interpret them in mathematical and physical terms. We give examples of problems that can be addressed through our probabilistic formalism. Though still under development, ours is a powerful approach to population synthesis. In an era of resolved observations and pipelined analyses of large surveys, this paper is offered as a signpost in the field of stellar populations.
description: Accepted by A&A. Substantially modified with respect to the 1st draft. 26 pages, 14 figs
Dust-scattering halo and giant hard X-ray flare from the Supergiant Fast X-ray Transient IGR J16479-4514 investigated with XMM-Newton and INTEGRAL
Creators: name: Sguera, V.
name: Tiengo, A.
name: Sidoli, L.
name: Bird, A. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report results from the analysis of XMM-Newton and INTEGRAL data of IGR J16479-4514. The unpublished XMM-Newton observation, performed in 2012, occurred during the source eclipse. No point-like X-ray emission was detected from the source, conversely extended X-ray emission was clearly detected up to a size distance compatible with a dust scattering halo produced by the source X-ray emission before being eclipsed by its companion donor star. The diffuse emission of the dust-scattering halo could be observed without any contamination from the central point X-ray source, compared to a previous XMM-Newton observation published in 2008. Our comprehensive analysis of the 2012 unpublished spectrum of the diffuse emission as well as of the 2008 re-analysed spectra extracted from three adjacent time intervals and different extraction regions (optimized for point-like and extended emission) allowed us to clearly disentangle the scattering halo spectrum from the residual point-like emission during the 2008 eclipse. Moreover, the point-like emission detected in 2008 could be separated into two components attributed to the direct emission from the source and to scattering in the stellar wind, respectively. From archival unpublished INTEGRAL data, we identified a very strong (3$\times$10$^{-8}$ erg cm$^{-2}$ s$^{-1}$) and fast (25 minutes duration) flare which was classified as giant hard X-ray flare since the measured peak-luminosity is 7$\times$10$^{37}$ erg s$^{-1}$. Giant X-ray flares from SFXTs are very rare, to date only one has been reported from a different source. We propose a physical scenario to explain the origin in the case of IGR J16479-4514.
description: Accepted for publication on The Astrophysical Journal (received 20-Apr-2020, accepted 27-Jul-2020)
OPTIMUM SOIL QUALITY ATTRIBUTE LEVELS AND VALUES
Creators: name: Smith, Elwin G.
name: Lerohl, Mel L.
name: Messele, Teklay
name: Smith, Elwin G.
name: Lerohl, Mel L.
name: Messele, Teklay
Publisher: name: Unknown
Year: 1999
Subjects: Land Economics/Use

description: We develop a dynamic optimal cropping systems model for the northern Great Plains, taking into account the impact of the system on soil quality attributes organic and inorganic carbon. Continuous wheat and direct planting is the most profitable system under most economic conditions. This system has low soil erosion and results in high soil quality.
DOES GENDER, CLASS STANDING, AND HIGH SCHOOL ECONOMICS INFLUENCE STUDENTS' ECONOMIC LEARNING
Creators: name: Bridges, Deborah E.
name: Casavant, Kenneth L.
name: Bridges, Deborah E.
name: Casavant, Kenneth L.
Publisher: name: Unknown
Year: 1999
Subjects: Labor and Human Capital
Teaching/Communication/Extension/Profession

description: This paper investigates how gender, maturity of the student, and previous economics study in high school contribute to economic learning. Economic learning is measured using the difference between pre- and post-test scores. OLS results suggest that high school economics plays a larger role in economic learning than either gender or maturity.
AN EFFICIENCY ANALYSIS OF CATTLE BACKGROUNDING IN KANSAS
Creators: name: Gow, Laura R.
name: Langemeier, Michael R.
name: Gow, Laura R.
name: Langemeier, Michael R.
Publisher: name: Unknown
Year: 1999
Subjects: Livestock Production/Industries

description: Efficiency measures can be used to generate inferences about the future direction of the industry and determine factors that may influence the structure. This study evaluated relative efficiencies of Kansas backgrounding operations. Farms that engaged in the backgrounding of cattle were very inefficient. Significant improvement is needed in technology adoption and input usage.
THE EFFECT OF RETAIL FOOD NEWSPAPER ADVERTISING ON CONSUMER DECISION MAKING
Creators: name: Welsh, Robert S.
name: Welsh, Robert S.
Publisher: name: Unknown
Year: 1973
Subjects: subject: Consumer/Household Economics
subject: Marketing
subject: FOS: Economics and business

description: Presents results of a study of consumers reaction to newspaper advertisement by food stores in terms of shopping habits, appraisal of advertising, use of and benefits derived from advertisements.
June 2020 virtual Open Pharma roundtable meeting report
Creators: name: Macdonald, Steph
name: Sabir, Sarah
name: Koder, Tim
name: Ounsworth, Francesca
name: Watts, Zoe
name: Farrow, Paul
name: Winchester, Chris
Publisher: name: Open Pharma
Year: 2020
Subjects: subject: Science Policy
subject: Health Care
subject: 111504 Pharmaceutical Sciences
subject: FOS: Clinical medicine

description: On June 15, 2020, current and prospective Members and Supporters of Open Pharma and a group of Advisers met for a virtual roundtable meeting to discuss US perspectives on open access and the reach of the Open Pharma position statement, the ways in which patients access and discover medical research, how the use of an ORCID iD can build research trust and accountability, and the value of plain language summaries and preprints.
Complex-valued Imaging with Total Variation Regularization: An Application to Full-Waveform Inversion in Visco-acoustic Media
Creators: name: Aghamiry, Hossein S.
name: Gholami, Ali
name: Operto, Stephane
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: Full waveform inversion (FWI) is a nonlinear PDE constrained optimization problem, which seeks to estimate constitutive parameters of a medium such as phase velocity, density, and anisotropy, by fitting waveforms. Attenuation is an additional parameter that needs to be taken into account in viscous media to exploit the full potential of FWI. Attenuation is more easily implemented in the frequency domain by using complex-valued velocities in the time-harmonic wave equation. These complex velocities are frequency-dependent to guarantee causality and account for dispersion. Since estimating a complex frequency-dependent velocity at each grid point in space is not realistic, the optimization is generally performed in the real domain by processing the phase velocity (or slowness) at a reference frequency and attenuation (or quality factor) as separate real parameters. This real parametrization requires an a priori empirical relation (such as the nonlinear Kolsky-Futterman (KF) or standard linear solid (SLS) attenuation models) between the complex velocity and the two real quantities, which is prone to generate modeling errors if it does not represent accurately the attenuation behavior of the subsurface. Moreover, it leads to a multivariate inverse problem, which is twice larger than the actual size of the medium and ill-posed due to the cross-talk between the two classes of real parameters. To alleviate these issues, we present a mono-variate algorithm that solves directly the optimization problem in the complex domain by processing in sequence narrow bands of frequencies under the assumption of band-wise frequency dependence of the sought complex velocities.
High-order BDF fully discrete scheme for backward fractional Feynman-Kac equation with nonsmooth data
Creators: name: Sun, Jing
name: Nie, Daxin
name: Deng, Weihua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: The Feynman-Kac equation governs the distribution of the statistical observable -- functional, having wide applications in almost all disciplines. After overcoming challenges from the time-space coupled nonlocal operator and the possible low regularity of functional, this paper develops the high-order fully discrete scheme for the backward fractional Feynman-Kac equation by using backward difference formulas (BDF) convolution quadrature in time, finite element method in space, and some correction terms. With a systematic correction, the high convergence order is achieved up to $6$ in time, without deteriorating the optimal convergence in space and without the regularity requirement on the solution. Finally, the extensive numerical experiments validate the effectiveness of the high-order schemes.
description: 23 pages
Geometric scaling violations in the central rapidity region of d+Au collisions at RHIC
Creators: name: Dumitru, Adrian
name: Hayashigaki, Arata
name: Jalilian-Marian, Jamal
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We show that geometric scaling is satisfied to good accuracy in the forward region of d+Au collisions at RHIC. Scaling violations do show up, however, at mid-rapidity, and the anomalous dimension of the small-x gluon distribution evolves to near its DGLAP limit for transverse momenta of a few GeV. This represents a first consistency check of RHIC deuteron-nucleus and HERA DIS phenomenology, and of the universality of the underlying Color Glass Condensate (CGC) theory, which describes both phenomena. It also reconciles successful leading-twist LO and NLO perturbative QCD computations of mid-rapidity particle production with small-x evolution. Finally, we introduce a new parameterization for the anomalous dimension of the small-x gluon distribution which properly reproduces known theoretical limits at large rapidity, at large virtuality, and on the saturation boundary, and still fits the available data from d+Au collisions at RHIC. We find indications that sub-asymptotic terms in the rapidity-evolution of the anomalous dimension are large.
description: v2 to appear in NPA; 17 pages, 5 figures; section 2 has been revised following useful comments by the referee, main results and conclusions unchanged; codes for computing final-state pt-distributions from hadron collisions with a CGC can be downloaded at http://www.th.physik.uni-frankfurt.de/~dumitru/CGC/CGC.html
Die Entdeckung der ältesten Urkunde für die syrische Übersetzung der Apostolischen Kirchenordnung
Creators: name: Võõbus, Arthur
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 63 (1979): Oriens christianus, Band 63
Native title and the tide of history : shifting the sands
Creators: name: Hall, Brooke
Publisher: name: University of British Columbia
Year: 2009

description: This thesis is designed to contribute to the discussion of the issues confronting Australian Courts by evaluating the process of recognition and protection of native title and to delineate how it is being shaped. The High Court of Australia's decision in Mabo v. The State of Queensland [No.2] (1992) C.L.R. 1 and the subsequent Native Title Act 1993 (Cth) in Australia have begun the process of recognition and protection of native title. This thesis looks at the scope of the High Court and some Federal Court of Australia decisions since Mabo [No.2], and examines the relationships at law that underlay a theoretical foundation for those decisions. Two relationships underlay the Courts' reasons: relationships to history, and relationships to land. Australian Courts are articulating a particular conception of these relationships, and the foundation of this thesis is to propose a shift in native title discourse to include indigenous perspectives when determining native title claims.
The Relationship Between Luminosity and Broad-Line Region Size in Active Galactic Nuclei
Creators: name: Kaspi, Shai
name: Maoz, Dan
name: Netzer, Hagai
name: Peterson, Bradley M.
name: Vestergaard, Marianne
name: Jannuzi, Buell T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We reinvestigate the relationship between the characteristic broad-line region size (R_blr) and the Balmer emission-line, X-ray, UV, and optical continuum luminosities. Our study makes use of the best available determinations of R_blr for a large number of active galactic nuclei (AGNs) from Peterson et al. Using their determinations of R_blr for a large sample of AGNs and two different regression methods, we investigate the robustness of our correlation results as a function of data sub-sample and regression technique. Though small systematic differences were found depending on the method of analysis, our results are generally consistent. Assuming a power-law relation R_blr \propto L^α, we find the mean best-fitting αis about 0.67+/-0.05 for the optical continuum and the broad Hβluminosity, about 0.56+/-0.05 for the UV continuum luminosity, and about 0.70+/-0.14 for the X-ray luminosity. We also find an intrinsic scatter of about 40% in these relations. The disagreement of our results with the theoretical expected slope of 0.5 indicates that the simple assumption of all AGNs having on average same ionization parameter, BLR density, column density, and ionizing spectral energy distribution, is not valid and there is likely some evolution of a few of these characteristics along the luminosity scale.
description: 11 pages, 2 figures, emulateapj, accepted for publication in The Astrophysical Journal
Understanding the UV luminescence of zinc germanate: The role of native defects
Creators: name: Dolado, Jaime
name: Martínez-Casado, Ruth
name: Hidalgo, Pedro
name: Gutierrez, Rafael
name: Dianat, Arezoo
name: Cuniberti, Gianaurelio
name: Domínguez-Adame, Francisco
name: Díaz, Elena
name: Méndez, Bianchi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Achieving efficient and stable ultraviolet emission is a challenging goal in optoelectronic devices. Herein, we investigate the UV luminescence of zinc germanate Zn2GeO4 microwires by means of photoluminescence measurements as a function of temperature and excitation conditions. The emitted UV light is composed of two bands (a broad one and a narrow one) associated with the native defects structure. In addition, with the aid of density functional theory (DFT) calculations, the energy positions of the electronic levels related to native defects in Zn2GeO4 have been calculated. In particular, our results support that zinc interstitials are the responsible for the narrow UV band, which is, in turn, split into two components with different temperature dependence behaviour. The origin of the two components is explained on the basis of the particular location of Zn_i in the lattice and agrees with DFT calculations. Furthermore, a kinetic luminescence model is proposed to ascertain the temperature evolution of this UV emission. These results pave the way to exploit defect engineering in achieving functional optoelectronic devices to operate in the UV region.
ANALYSIS OF INTEREST RATE DYNAMICS USING ECONOMETRIC MODELS
Creators: name: Bektosheva, Umida
Publisher: name: Zenodo
Year: 2024

description: Interest rates are pivotal in shaping economic landscapes. They influence borrowing costs, consumer spending, and business investment decisions, making them crucial for policymakers and economists. Understanding the dynamics of interest rates and the underlying factors driving these changes is essential for effective economic forecasting and policy formulation.
Marcinkiewicz-Zygmund inequalities
Creators: name: Ortega-Cerdà, Joaquim
name: Saludes, Jordi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We study a generalization of the classical Marcinkiewicz-Zygmund inequalities. We relate this problem to the sampling sequences in the Paley-Wiener space and by using this analogy we give sharp necessary and sufficient computable conditions for a family of points to satisfy the Marcinkiewicz-Zygmund inequalities.
Jacob of Edessa's discourse on the Myron
Creators: name: Jakob, Edessa
name: Brock, Sebastian P.
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 63 (1979): Oriens christianus, Band 63
Probing Thermally Activated Atomic and Nanocrystalline Defect Motion through Noise Processes in RuO$_2$ Nanowires
Creators: name: Yeh, Sheng-Shiuan
name: Yu, Cheng-Ya
name: Lee, Yi-Te
name: Chiu, Shao-Pin
name: Lin, Juhn-Jong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The present-day nanodevice dimensions continuously shrink, with the aim to prolong Moore's law. As downsizing meticulously persists, undesirable dynamic defects, which cause low-frequency noise and structural instability, play detrimental roles on limiting the ultimate performance and reliability of miniaturized devices. A good understanding and a meaningful control of the defect kinetics then become fundamental and urgent issues. Here we report observations of thermally activated atomic defect motion as well as nanocrystalline defect motion through electrical noise processes in metallic RuO$_2$ rutile nanowires around room temperature. First, we extract the energy distribution function and the number density of mobile atomic defects (oxygen vacancies). Second, we obtain the geometrical size, grain-boundary bonding strength, and relaxation times of dynamic nanocrystallites. Our results show clearly a powerful probe for effective and noninvasive characterizations of nanostructures and nanomaterials for which quantitative information about mechanical hardness, breakdown current density, and/or resistance noise is essential.
description: 21 pages, 5 figures, 1 table
Quantum numbers of heavy neutrinos, tri-bi-maximal mixing through double seesaw with permutation symmetry, and comment on $θ_{\rm sol}+θ_c\simeq \fracπ{4}$
Creators: name: Kim, Jihn E.
name: Park, Jong-Chul
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the family symmetry, in the neutrino mass matrix we remove the Yukawa coupling (arising in the Dirac type mass between the heavy neutrinos and light lepton doublets) dependence in the double seesaw mechanism so that it is directly proportional to the mass matrix $m^{(nn)}$ of heavy Majorana neutrinos. The family symmetry is supposed to be broken spontaneously at high energy scale so that the neutrino mass matrix is given by the family symmetry at high energy scale. With the permutation symmetry $S_3$, we note a variety of possible mass hierarchies arising distinctly in neutrinos, charged leptons, $Q_{\rm em}=-\frac13$ quarks, and $Q_{\rm em}=\frac23$ quarks. Distinguishing these hierarchies, we obtain a relation between the CKM angles and the MNS angles. Finally, we comment on the approximate relation $θ_{\rm sol}+θ_c\simeq \fracπ{4}$.
description: LaTeX file of 26 pages including 2 figures
Full report of the June 2020 virtual Open Pharma roundtable meeting
Creators: name: Macdonald, Steph
name: Sabir, Sarah
name: Koder, Tim
name: Ounsworth, Francesca
name: Watts, Zoe
name: Farrow, Paul
name: Winchester, Chris
Publisher: name: Open Pharma
Year: 2020
Subjects: subject: Science Policy
subject: Health Care
subject: 111504 Pharmaceutical Sciences
subject: FOS: Clinical medicine

description: On June 15, 2020, current and prospective Members and Supporters of Open Pharma and a group of Advisers met for a virtual roundtable meeting to discuss US perspectives on open access and the reach of the Open Pharma position statement, the ways in which patients access and discover medical research, how the use of an ORCID iD can build research trust and accountability, and the value of plain language summaries and preprints.
Ochterus pardalos Nieser & Chen 1999
Creators: name: Kment, Petr
name: Carapezza, Attilio
name: Jindra, Zdeněk
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Ochteridae
Ochterus
Ochterus pardalos

description: Ochterus pardalos Nieser & Chen, 1999
 Ochterus pardalos Nieser & Chen, 1999: 90, 93 ‒94, 123 (description, differential diagnosis, illustrations). HOLOTYPE:, Philippines: Mindanao: ʻLake Sebu area, trickle of water fed by seepage from ʻCold River’ ’ (NCTN).
 Ochterus pardalos: GAPUD (2003): 107 (checklist); CHEN et al. (2005): 413 (checklist).
  Distribution. Oriental Region:  Philippines: Mindanao (NIESER & CHEN 1999, GAPUD 2003).
description: Published as part of Kment, Petr, Carapezza, Attilio & Jindra, Zdeněk, 2020, Taxonomic catalogue of the family Ochteridae with description of Ochterus papaceki sp. nov. from Socotra Island and Tanzania (Hemiptera: Heteroptera), pp. 23-64 in Acta Entomologica Musei Nationalis Pragae 60 (1) on page 44, DOI: 10.37520/aemnp.2020.003, http://zenodo.org/record/3879659
Metasurfaces with maximum chirality empowered by bound states in the continuum
Creators: name: Gorkunov, Maxim V.
name: Antonov, Alexander A.
name: Kivshar, Yuri S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We demonstrate that rotationally symmetric chiral metasurfaces can support arbitrarily sharp resonances with the maximum optical chirality determined by precise shaping of bound states in the continuum (BICs). Being uncoupled from one circular polarisation of light and resonantly coupled to its counterpart, a metasurface hosting the chiral BIC resonance exhibits a narrow peak in the circular dichroism spectrum. We propose a realization of such chiral BIC metasurfaces based on pairs of dielectric bars and validate the concept of maximum chirality by numerical simulations
Beyond Einstein's General Relativity: Hybrid metric-Palatini gravity and curvature-matter couplings
Creators: name: Harko, Tiberiu
name: Lobo, Francisco S. N.
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: Einstein's General Relativity (GR) is possibly one of the greatest intellectual achievements ever conceived by the human mind. In fact, over the last century, GR has proven to be an extremely successful theory, with a well established experimental footing. However, the discovery of the late-time cosmic acceleration, which represents a new imbalance in the governing gravitational field equations, has forced theorists and experimentalists to question whether GR is the correct relativistic theory of gravitation, and has spurred much research in modified gravity, where extensions of the Hilbert-Einstein action describe the gravitational field. In this review, we perform a detailed theoretical and phenomenological analysis of two largely explored extensions of $f(R)$ gravity, namely: (i) the hybrid metric-Palatini theory; (ii) and modified gravity with curvature-matter couplings. Relative to the former, it has been established that both metric and Palatini versions of $f(R)$ gravity possess interesting features but also manifest severe drawbacks. A hybrid combination, containing elements from both of these formalisms, turns out to be very successful in accounting for the observed phenomenology and avoids some drawbacks of the original approaches. Relative to the curvature-matter coupling theories, these offer interesting extensions of $f(R)$ gravity, where the explicit nonminimal couplings between an arbitrary function of the scalar curvature $R$ and the Lagrangian density of matter, induces a non-vanishing covariant derivative of the energy-momentum tensor. We extensively explore both theories in a plethora of applications, namely, the weak-field limit, galactic and extragalactic dynamics, cosmology, stellar-type compact objects, irreversible matter creation processes and the quantum cosmology of a specific curvature-matter coupling theory.
description: 68 pages; invited review paper to appear in IJMPD (abstract in metadata shortened)
Workforce Optimisation for Quick Commerce Dark Stores
Creators: name: Daga, Shruti
name: M Roshan Kumar
name: Husain Nandurbarwala
Publisher: name: Zenodo
Year: 2024

description: In quick commerce, dark stores are at the heart of ultra-fast deliveries. To ensure smooth operations, workforce optimization is critical. Companies like Flipkart, Zepto, and Blinkit are scaling by implementing structured workforce strategies. This includes localized recruitment, flexible shifts, and AI-driven tools to manage talent and demand fluctuations. The key roles in these stores range from store managers to packers, with cross-functional "all-rounders" offering flexibility during peak times. By focusing on localized hiring, employee retention, and scalable workforce planning, businesses can handle high attrition and maintain efficiency as they grow.
The inverse Kazhdan-Lusztig polynomial of a matroid
Creators: name: Gao, Alice L. L.
name: Xie, Matthew H. Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05B35 05B35 05B35

description: In analogy with the classical Kazhdan-Lusztig polynomials for Coxeter groups, Elias, Proudfoot and Wakefield introduced the concept of Kazhdan-Lusztig polynomials for matroids. It is known that both the classical Kazhdan-Lusztig polynomials and the matroid Kazhdan-Lusztig polynomials can be considered as special cases of the Kazhdan-Lusztig-Stanley polynomials for locally finite posets. In the framework of Kazhdan-Lusztig-Stanley polynomials, we study the inverse of Kazhdan-Lusztig-Stanley functions and define the inverse Kazhdan-Lusztig polynomials for matroids. We also compute these polynomials for boolean matroids and uniform matroids. As an unexpected application of the inverse Kazhdan-Lusztig polynomials, we obtain a new formula to compute the Kazhdan-Lusztig polynomials for uniform matroids. Similar to the Kazhdan-Lusztig polynomial of a matroid, we conjecture that the coefficients of its inverse Kazhdan-Lusztig polynomial are nonnegative and log-concave.
description: 17 pages
Towards a Heterogeneous Smart Electromagnetic Environment for Millimeter-Wave Communications: An Industrial Viewpoint
Creators: name: Flamini, Roberto
name: De Donno, Danilo
name: Gambini, Jonathan
name: Giuppi, Francesco
name: Mazzucco, Christian
name: Milani, Angelo
name: Resteghini, Laura
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Fifth generation (5G) and beyond communication systems open the door to millimeter Wave (mmWave) frequency bands to leverage the extremely large operating bandwidths and deliver unprecedented network capacity. These frequency bands are affected by high propagation losses that severely limit the achievable coverage. The simplest way to address this problem would be to increase the number of installed mmWave base stations (BSs), at the same time augmenting the overall network cost, power consumption and ElectroMagnetic Field (EMF) levels. As alternative direction, here we propose to complement the macro-layer of mmWave BSs with a heterogeneous deployment of Smart Electromagnetic (Smart EM) Entities - namely IAB nodes, Smart Repeaters, Reconfigurable Intelligent Surfaces (RISs) and passive surfaces - that is judiciously planned to minimize the total installation costs while at the same time optimizing the network spectral efficiency. Initial network planning results underline the effectiveness of the proposed approach. The available technologies and the key research directions for achieving this view are thoroughly discussed by accounting for issues ranging from system-level design to the development of new materials.
Baseline Survey for Radio School Project
Creators: name: Ogoko, Gerald
Publisher: name: figshare
Year: 2020
Subjects: subject: 170103 Educational Psychology
subject: FOS: Psychology
subject: Education
subject: 130106 Secondary Education
subject: FOS: Educational sciences

description: Report for Baseline Survey Conducted for the MacArthur Foundation-Funded Radio School Project Implemented in Enugu and Adamawa states.
Free Higher-Order Logic - Notion, Definition and Embedding in HOL
Creators: name: Makarenko, Irina
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: higher order logic
subject: HOL
subject: 000 Informatik, Informationswissenschaft, allgemeine Werke::000 Informatik, Wissen, Systeme::000 Informatik, Informationswissenschaft, allgemeine Werke

description: Free logics are a family of logics that are free of any existential assumptions. This family can roughly be divided into positive, negative, neutral and supervaluational free logic whose semantics differ in the way how nondenoting terms are treated. While there has been remarkable work done concerning the definition of free first-order logic, free higher-order logic has not been addressed thoroughly so far. The purpose of this thesis is, firstly, to give a notion and definition of free higher-order logic based on simple type theory and, secondly, to propose faithful shallow semantical embeddings of free higher-order logic into classical higher order logic found on this definition. Such embeddings can then effectively be utilized to enable the application of powerful state-of-the-art higher-order interactive and automated theorem provers for the formalization and verification and also the further development of increasingly important free logical theories.
CONSERVATION, CREATION, AND EVOLUTION: REVISING THE DARWINIAN PROJECT
Creators: name: Shkliarevsky, Gennady
Publisher: name: figshare
Year: 2019
Subjects: subject: 60305 Evolution of Developmental Systems
subject: FOS: Biological sciences
subject: Evolutionary Biology

description: There is hardly anything more central to our universe than conservation. Many scientific fields and disciplines view the law of conservation as one of the most fundamental universal laws. The Darwinian model pivots the process of evolution on variability, reproduction, and natural selection. Conservation plays a marginal role in this model and is not really universal, as the model allows exceptions to conservation, i.e. non-conservation, to play an equally important role in evolution. This anomalous role of conservation in the Darwinian model raises questions: What is the reason for this anomaly? Is conservation really universal, as we tend to believe or is it not, as the Darwinian model suggests? This contribution proposes a new model of evolution that focuses on levels of organization, rather than of species, organisms, or populations. It argues that conservation is central to evolution. Not only does this new model restores the universal status of conservation but it also makes possible to resolve some outstanding problems and controversies that continue to plague the Darwinian model. The article tries to advance the broad Darwinian project that seeks to explain the process of evolution as a product of the spontaneous processes in nature.
IDPFUN2 - ELIXIR Session, ELIXIR Europe Overview slides
Creators: name: Farrell, Gavin
Publisher: name: Zenodo
Year: 2025

description: ELIXIR Europe slide deck overview presented by Gavin Farrell at the IDPFUN2 ELIXIR session on 16th April, 2025 in Buenos Aires. Adapted from ELIXIR Europe standard slide deck maintained by the ELIXIR Europe Hub Comms Team.
The Quantum Compass Model on the Square Lattice
Creators: name: Dorier, J.
name: Becca, F.
name: Mila, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using exact diagonalizations, Green's function Monte Carlo simulations and high-order perturbation theory, we study the low-energy properties of the two-dimensional spin-1/2 compass model on the square lattice defined by the Hamiltonian $H = - \sum_{\bm{r}} (J_x σ_{\bm{r}}^x σ_{\bm{r} + \bm{e}_x}^x + J_z σ_{\bm{r}}^z σ_{\bm{r} + \bm{e}_z}^z)$. When $J_x\ne J_z$, we show that, on clusters of dimension $L\times L$, the low-energy spectrum consists of $2^L$ states which collapse onto each other exponentially fast with $L$, a conclusion that remains true arbitrarily close to $J_x=J_z$. At that point, we show that an even larger number of states collapse exponentially fast with $L$ onto the ground state, and we present numerical evidence that this number is precisely $2\times 2^L$. We also extend the symmetry analysis of the model to arbitrary spins and show that the two-fold degeneracy of all eigenstates remains true for arbitrary half-integer spins but does not apply to integer spins, in which cases eigenstates are generically non degenerate, a result confirmed by exact diagonalizations in the spin-1 case. Implications for Mott insulators and Josephson junction arrays are briefly discussed.
description: 8 pages, 8 figures
Flavor Symmetry L_mu - L_tau and quasi-degenerate Neutrinos
Creators: name: Rodejohann, W.
name: Schmidt, M. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Current data implies three simple forms of the neutrino mass matrix, each corresponding to the conservation of a non-standard lepton charge. While models based on L_e and L_e - L_mu - L_tau are well-known, little attention has been paid to L_mu - L_tau. A low energy mass matrix conserving L_mu - L_tau implies quasi-degenerate light neutrinos. Moreover, it is mu-tau symmetric and therefore (in contrast to L_e and L_e - L_mu - L_tau) automatically predicts maximal atmospheric neutrino mixing and zero U_{e3}. A see-saw model based on L_mu - L_tau is investigated and testable predictions for the neutrino mixing observables are given. Renormalization group running below and in between the see-saw scales is taken into account in our analysis, both numerically and analytically.
description: 15 pages, 2 figures. Prepared for 5th International Conference on Nonaccelerator New Physics (NANP 05), Dubna, Russia, 20-25 Jun 2005
ENLACE: Newsletters (Physical Activity Intervention Maintenance)
Creators: name: Institute, Latino Research
Publisher: name: The University of Texas at Austin
Year: 2024
Subjects: Enlace
Latino
Latina
Hispanic
women
promotora
community outreach
physical activity
border
rural
exercise
fitness
South Texas
newsletter
intervention
maintenance

description: The study “ENLACE: A Promotora-Led Physical Activity Intervention Trial for Latinas in Texas” is a clinical trial (NCT00869583) funded by the National Institute of Health (NIH) (R01HL111718).
description: This record contains five newsletters delivered to participants of the ENLACE study sorted into the physical activity intervention group. Newsletters promote physical activity and exercise, and are available in English and Spanish
ENLACE: In Depth Interview Guides
Creators: name: Institute, Latino Research
Publisher: name: The University of Texas at Austin
Year: 2024
Subjects: Enlace
Latino
Latina
Hispanic
women
promotora
community outreach
physical activity
border
rural
exercise
fitness
South Texas
interview
guide
protocol
measurement

description: The study “ENLACE: A Promotora-Led Physical Activity Intervention Trial for Latinas in Texas” is a clinical trial (NCT00869583) funded by the National Institute of Health (NIH) (R01HL111718).
description: This record includes two in depth interview guides used to assess participant progress in the ENLACE study, including a 16-week post-intervention interview guide and a 40-week post-intervention interview guide. Guides are available in English and Spanish.
Lateral and normal forces between patterned substrates induced by nematic fluctuations
Creators: name: Haddadan, F. Karimi Pour
name: Dietrich, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider a nematic liquid crystal confined by two parallel flat substrates whose anchoring conditions vary periodically in one lateral direction. Within the Gaussian approximation, we study the effective forces between the patterned substrates induced by the thermal fluctuations of the nematic director. The shear force oscillates as function of the lateral shift between the patterns on the lower and the upper substrates. We compare the strength of this fluctuation-induced lateral force with the lateral van der Waals force arising from chemically structured adsorbed monolayers. The fluctuation-induced force in normal direction is either repulsive or attractive, depending on the model parameters.
description: 9 pages, 9 figures