cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Dirac oscillator: an alternative basis for nuclear structure calculations
Creators: name: Yang, Junjie
name: Piekarewicz, J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Background: The isotropic harmonic oscillator supplemented by a strong spin-orbit interaction has been the cornerstone of nuclear structure since its inception more than seven decades ago. In this paper we introduce---or rather re-introduced---the "Dirac Oscillator", a fully relativistic basis that has all the desired attributes of the ordinary harmonic oscillator while naturally incorporating a strong spin-orbit coupling. Purpose: To assess---to our knowledge for the first time---the power and flexibility of the Dirac Oscillator basis in the solution of nuclear structure problems within the framework of covariant density functional theory. Methods: Self-consistent calculations of binding energies and ground-state densities for a selected set of doubly-magic magic are performed using the Dirac-oscillator basis and are then compared against results obtained with the often-used Runge-Kutta method. Results: Results obtained using the Dirac oscillator basis reproduced with high accuracy those derived using the Runge-Kutta method and suggest a clear path for a generalization to systems with axial symmetry. Conclusions: Although the three-dimensional harmonic oscillator with spin-orbit corrections has been the staple of the nuclear shell model since the beginning, the Dirac oscillator is practically unknown among the nuclear physics community. In this paper we illustrate the power and flexibility of the Dirac oscillator and suggest extensions to the study of systems without spherical symmetry as required in constrained calculations of nuclear excitations.
description: 10 pages, 2 figures
The Impact of Urbanization on CO2 Emissions: Evidence from Developing Countries
Creators: name: Martinez-Zarzoso, Inmaculada
name: Martinez-Zarzoso, Inmaculada
Publisher: name: Unknown
Year: 2008
Subjects: subject: CO2 Emissions
subject: Developing Countries
subject: Panel Data
subject: Population Growth
subject: Urbanization

description: This paper analyzes the impact of urbanization on CO2 emissions in developing countries. In this study we treat population as a predictor in the model, instead of assuming a unitary elasticity of emissions with respect to population growth. We contribute to the existing literature by examining the effect of urbanization, taking into account the presence of heterogeneity in the sample of countries and testing for the stability of the estimated elasticities over time. The sample covers the period from 1975 through 2005 for different groups of countries, classified according to their income levels. Our results show that, whereas the impact of population growth on emissions is above unity and only slightly different for upper, middle, and low-income countries, additional demographic variables, namely, urbanization, demonstrate a very different impact on emissions for low and lower-middle-income countries and upper-middle income countries. For the first set of countries, the elasticity, emission-urbanization, is higher than unity, whereas in the second group, the elasticity is 0.72, which is in accordance with the higher environmental impact observed in less developed regions. However, in upper-middle income countries and highly developed countries, the elasticity, emission-urbanization, is negative. The heterogeneous impact of urbanization on CO2 emissions should therefore be taken into account in future discussions of climate change policies.
Berechnung Paris-kompatibler Emissionspfade mit dem ESPM am Beispiel Deutschlands und der EU
Creators: name: Sargl, Manfred
name: Wiegand, Daniel
name: Wittmann, Günter
name: Wolfsteiner, Andreas
Publisher: name: Zenodo
Year: 2023
Subjects: Pariser-Ambtionsmechanismus
Paris-kompatible Ziele
CO2-Budget
Effort sharing
Paris ambition mechanism

description: CO2 reichert in sich der Atmosphäre an. Daher ist die Summe an CO2-Emissionen entscheidend für die Einhaltung bestimmter Grenzen der Erderwärmung. Auf dieser naturwissenschaftlichen Grundlage fordern z. B. „Fridays for Future“, dass sich nationale Emissionspfade an einem verbleibenden globalen CO2-Budget orientieren sollen. Bei der Umsetzung stellen sich jedoch folgende Fragen: An welchem konkreten global verbleibenden CO2-Budget sollen sich die Staaten bei ihren NDCs orientieren? An welcher Aufteilung eines globalen CO2-Budgets sollen sich Staaten bei ihren NDCs orientieren? Wie kann ein daraus resultierendes nationales CO2-Budget in einen sinnvollen nationalen Emissionspfad übersetzt werden? Das Extended Smooth Pathway Model (ESPM) bietet einen Rahmen, um diese Fragen zu beantworten. Wenn die Vertragsstaaten bei ihren NDCs ein dahinterstehendes globales CO2-Budget und einen dahinterstehenden Verteilungsschlüssel transparent machen, kann dies einen Diskurs in Gang setzen, der zu konvergierenden globalen Orientierungsgrößen führt und damit zu in Summe Paris-kompatiblen NDCs beiträgt.
An algorithm for the high-energy expansion of multi-loop diagrams to next-to-leading logarithmic accuracy
Creators: name: Denner, A.
name: Pozzorini, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an algorithm to compute arbitrary multi-loop massive Feynman diagrams in the region where the typical energy scale \sqrt{s} is much larger than the typical mass scale M, i.e. s>>M^2, while various different energy and mass parameters may be present. In this region we perform an asymptotic expansion and, using sector decomposition, we extract the leading contributions resulting from ultraviolet and mass singularities, which consist of large logarithms log(s/M^2) and 1/εpoles in D=4-2εdimensions. To next-to-leading accuracy, at L loops all terms of the form α^L ε^{-k} log^j(s/M^2) with j+k=2L and j+k=2L-1 are taken into account. This algorithm permits, in particular, to compute higher-order next-to-leading logarithmic electroweak corrections for processes involving various kinematical invariants of the order of hundreds of GeV and masses M_W \sim M_Z \sim M_H \sim M_t of the order of the electroweak scale, in the approximation where the masses of the light fermions are neglected.
description: 30 pages, LaTeX. The complete paper is also available via the www at http://www-ttp.physik.uni-karlsruhe.de/Preprints/
Recent Developments in the Bethe-Salpeter Description of Light Mesons
Creators: name: Watson, Peter
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Results for the light meson mass spectrum from a Bethe-Salpeter approach are presented. The results obtained in the standard framework are Poincaré covariant and compare favourably with lattice results. Using a more sophisticated scheme, the pseudoscalar, vector and $1^{++}$ ($a_1/f_1$) axialvector charge eigenstate masses are unaltered whereas the $1^{+-}$ ($b_1/h_1$) axialvector meson mass is raised.
description: 3 pages, 1 figure. Talk given at Quark Confinement and the Hadron Spectrum VI 2004, Italy 21-25 Sept. To appear in the (AIP) proceedings
Optical conductivity and resistivity in a four-band model for ZrTe$_5$ from ab-initio calculations
Creators: name: Morice, Corentin
name: Lettl, Elias
name: Kopp, Thilo
name: Kampf, Arno P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: ZrTe$_5$ is considered a potential candidate for either a Dirac semimetal or a topological insulator in close proximity to a topological phase transition. Recent optical conductivity results motivated a two-band model with a conical dispersion in 2D, in contrast to density functional theory calculations. Here, we reconcile the two by deriving a four-band model for ZrTe$_5$ using $\textbf{k} \cdot \textbf{p}$ theory, and fitting its parameters to the ab-initio band structure. The optical conductivity with an adjusted electronic structure matches the key features of experimental data. The chemical potential varies strongly with temperature, to the point that it may cross the gap entirely between zero and room temperature. The temperature-dependent resistivity displays a broad peak, and confirms theoretically the conclusions of recent experiments attributing the origin of the resistivity peak to the large shift of the chemical potential with temperature.
Quasiparticle dynamics and in-plane anisotropy in $Y Ba_2 Cu_3 O_y$ system near onset of superconductivity
Creators: name: Lee, Y. -S.
name: Segawa, Kouji
name: Ando, Yoichi
name: Basov, D. N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on an infrared study of carrier dynamics within the CuO$_{2}$ planes in heavily underdoped detwinned single crystals of YBa$_{2}$Cu$_{3}$O$% _{y}$. In an effort to reveal the electronic structure near the onset of superconductivity, we investigate the strong anisotropy of the electromagnetic response due to an enhancement of the scattering rate along the a-axis. We propose that the origin of this anisotropy is related to a modulation of the electron density within the CuO$_{2}$ planes.
description: 5 pages, 4 figures
Berechnung Paris-kompatibler Emissionspfade mit dem ESPM am Beispiel Deutschlands und der EU
Creators: name: Sargl, Manfred
name: Wiegand, Daniel
name: Wittmann, Günter
name: Wolfsteiner, Andreas
Publisher: name: Zenodo
Year: 2023
Subjects: Pariser-Ambtionsmechanismus
Paris-kompatible Ziele
CO2-Budget
Effort sharing
Paris ambition mechanism

description: CO2 reichert in sich der Atmosphäre an. Daher ist die Summe an CO2-Emissionen entscheidend für die Einhaltung bestimmter Grenzen der Erderwärmung (Budgeteigenschaft von CO2). Daher sollten sich NDCs an einem verbleibenden globalen CO2-Budget orientieren. Bei der Umsetzung stellen sich jedoch folgende Fragen, die zwar wissenschaftlich basiert, aber letztendlich politisch beantwortet werden müssen: An welchem global verbleibenden CO2-Budget sollen sich Staaten bei ihren NDCs orientieren? An welcher Aufteilung eines globalen CO2-Budgets sollen sich Staaten bei ihren NDCs orientieren? Wie kann ein daraus resultierendes national verbleibendes CO2-Budget in einen sinnvollen Emissionspfad übersetzt werden? Das Extended Smooth Pathway Model (ESPM) bietet einen Rahmen, in dem diese Fragen mit nachvollziehbaren Ergebnissen beantworten werden können. Wenn die Vertragsstaaten bei ihren NDCs ein dahinterstehendes globales CO2-Budget und einen dahinterstehenden Verteilungsschlüssel transparent machen, kann dies einen Diskurs in Gang setzen, der zu konvergierenden globalen Orientierungsgrößen führt und damit zu in Summe Paris-kompatiblen NDCs beiträgt.
Cointegration and unit root tests: A fully Bayesian approach
Creators: name: Diniz, Marcio Alves
name: Pereira, Carlos Alberto de Braganca
name: Stern, Julio Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62F15 (Primary) 62M10 (Secondary)

description: To perform statistical inference for time series, one should be able to assess if they present deterministic or stochastic trends. For univariate analysis one way to detect stochastic trends is to test if the series has unit roots, and for multivariate studies it is often relevant to search for stationary linear relationships between the series, or if they cointegrate. The main goal of this article is to briefly review the shortcomings of unit root and cointegration tests proposed by the Bayesian approach of statistical inference and to show how they can be overcome by the fully Bayesian significance test (FBST), a procedure designed to test sharp or precise hypothesis. We will compare its performance with the most used frequentist alternatives, namely, the Augmented Dickey-Fuller for unit roots and the maximum eigenvalue test for cointegration. Keywords: Time series; Bayesian inference; Hypothesis testing; Unit root; Cointegration.
INFORMATION AND COMMUNICATION TECHNOLOGIES IN THE CAMPANIA REGION WINE BUSINESS
Creators: name: Annunziata, Azzurra
name: Misso, Rosa
name: Vecchio, Riccardo
name: Annunziata, Azzurra
name: Misso, Rosa
name: Vecchio, Riccardo
Publisher: name: Unknown
Year: 2008
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies
subject: Wine
subject: ICT
subject: webmarketing
subject: Campania Region

description: The spread of modern information and communication technologies (ICTs) in the present economic context has led to new ways of carrying out commercial activities. A large body of research has shown the high potential of ICT applications for agrifood products, in particular for highly differentiated products. Wine, in particular, is an ideal product to exploit these opportunities thanks to its intrinsic characteristics, namely it is a product of “experience” and is highly differentiated and marketed internationally. This paper, starting from an analysis of the important role that modern information and communication technologies have in the agrifood sector, and more specifically in the grape growing sector, aims at examining the role that Internet and web marketing could play in promotional and communication strategies of wine companies in the Campania Region, by examining these tools as the combination of strategic factors essential to acquire a competitive position in the virtual market.
description: Paper Presented at INTERNATIONAL ADVANCED WORKSHOP ON INFORMATION AND COMMUNICATION TECHNOLOGIES FOR SUSTAINABLE AGRI-PRODUCTION AND ENVIRONMENT (AWICTSAE 2008), May 22-23 2008, Alexandroupolis, Greece
Colour-magnitude diagrams of transiting Exoplanets -- III. A public code, nine strange planets, and the role of Phosphine
Creators: name: Dransfield, Georgina
name: Triaud, Amaury H. M. J
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Colour-Magnitude Diagrams provide a convenient way of comparing populations of similar objects. When well populated with precise measurements, they allow quick inferences to be made about the bulk properties of an astronomic object simply from its proximity on a diagram to other objects. We present here a Python toolkit which allows a user to produce colour-magnitude diagrams of transiting exoplanets, comparing planets to populations of ultra-cool dwarfs, of directly imaged exoplanets, to theoretical models of planetary atmospheres, and to other transiting exoplanets. Using a selection of near- and mid-infrared colour-magnitude diagrams, we show how outliers can be identified for further investigation, and how emerging sub-populations can be identified. Additionally, we present evidence that observed differences in the \textit{Spitzer}'s 4.5μm flux, between irradiated Jupiters, and field brown dwarfs, might be attributed to phosphine, which is susceptible to photolysis. The presence of phosphine in low irradiation environments may negate the need for thermal inversions to explain eclipse measurements. We speculate that the anomalously low 4.5μm flux flux of the nightside of HD 189733b and the daysides of GJ 436b and GJ 3470b might be caused by phosphine absorption. Finally, we use our toolkit to include \textit{Hubble} WFC3 spectra, creating a new photometric band called the `Water band' (\textit{W$_{JH}$}-band) in the process. We show that the colour index [\textit{W$_{JH}$-H}] can be used to constrain the C/O ratio of exoplanets, showing that future observations with \textit{JWST} and \textit{Ariel} will be able to distinguish these populations if they exist, and select members for future follow-up.
description: Accepted for publication in MNRAS
Matter wave quantum dots (anti-dots) in ultracold atomic Bose-Fermi mixtures
Creators: name: Salerno, Mario
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The properties of ultracold atomic Bose-Fermi mixtures in external potentials are investigated and the existence of gap solitons of Bose-Fermi mixtures in optical lattices demonstrated. Using a self-consistent approach we compute the energy spectrum and show that gap solitons can be viewed as matter wave realizations of quantum dots (anti-dots) with the bosonic density playing the role of trapping (expulsive) potential for the fermions. The fermionic states trapped in the condensate are shown to be at the bottom of the Fermi sea and therefore well protected from thermal decoherence. Energy levels, filling factors and parameters dependence of gap soliton quantum dots are also calculated both numerically and analytically.
description: Extended version of talk given at the SOLIBEC conference, Almagro, Spain, 8-12 February 2005. To be published on Phys.Rev.A
Derivations for the even part of the Hamiltonian superalgebra in positive characteristic
Creators: name: Liu, Wende
name: Su, Yucai
name: Zhang, Yongzheng
Publisher: name: arXiv
Year: 2005
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B50, 17B40

description: In this paper we consider the derivations for even part of the finite-dimensional Hamiltonian superalgebra $H$ over a field of prime characteristic. We first introduce an ideal $\frak{N}$ of $H_{\bar{0}}$ and show that the derivation space from $H_{\bar{0}}$ into $W_{\bar{0}}$ can be obtained by the derivation space from $\frak{N}$ into $W_{\bar{0}},$ the even part of the generalized Witt superalgebra $W$. For further application we also give the generating set of the ideal $\frak{N}$. Then we describe three series of exceptional derivations from $ {H}_{\bar{0}}$ into $W_{\bar{0}}.$ Finally, we determine all the derivations vanishing on the non-positive $\mathbb{Z}$-graded part of $ H_{\bar{0}}$, the odd $\mathbb{Z}$-homogeneous derivations, and negative $\mathbb{Z}$-homogeneous derivations from ${H}_{\bar{0}}$ into $W_{\bar{0}}.$
description: 21 pages
EMPLOYING HYBRID AND INNOVATIVE METHODS FOR TEACHING ENGLISH LITERATURE TO FIRST-GENERATION NON-NATIVE ENGLISH LANGUAGE LEARNERS (NNELLS)
Creators: name: Dr. Lt. S. Ravibalan
Publisher: name: Zenodo
Year: 2024

description: The goal of this study is to investigate the impact of incorporating and implementing blended and innovative teaching methods on first-generation NNELLs' comprehension and enthusiastic involvement in English literature classrooms. NNELLs confront a number of hurdles during their learning process, including language and culture, making typical teaching approaches ineffective in meeting the learners' needs. The current study employed a qualitative research methodology to evaluate the efficacy of the blended learning strategy in enhancing the educational experience in a classroom setting by mixing traditional teaching techniques with information and communication technology. This quantitative research study examines the benefits and drawbacks of incorporating these unique approaches into the teaching process through interviews with educational professionals, focus group sessions with students, and careful observations. The study found that hybrid educational methods increased students' involvement and understanding of the subject matter. Contextual factors such as teacher education, available resources, and business cultures influence the findings. The study emphasizes the importance of targeted and dynamic educator training to improve the implementation of these tactics. According to the findings, blended learning and other instructional approaches have the potential to significantly improve NNELLs' learning results in English literature. However, the efficiency of these strategies is dependent on a tailored and situational approach that takes into account the learners' needs in the learning environment. This report makes recommendations to educators, policymakers, and institutions about how to improve the use of these approaches. Furthermore, it identifies prospective areas of future research to investigate their impact on NNELLs' academic performance and interests.
Steady Rayleigh--Bénard convection between stress-free boundaries
Creators: name: Wen, Baole
name: Goluskin, David
name: LeDuc, Matthew
name: Chini, Gregory P.
name: Doering, Charles R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Steady two-dimensional Rayleigh--Bénard convection between stress-free isothermal boundaries is studied via numerical computations. We explore properties of steady convective rolls with aspect ratios $π/5\leΓ\le4π$, where $Γ$ is the width-to-height ratio for a pair of counter-rotating rolls, over eight orders of magnitude in the Rayleigh number, $10^3\le Ra\le10^{11}$, and four orders of magnitude in the Prandtl number, $10^{-2}\le Pr\le10^2$. At large $Ra$ where steady rolls are dynamically unstable, the computed rolls display $Ra \rightarrow \infty$ asymptotic scaling. In this regime, the Nusselt number $Nu$ that measures heat transport scales as $Ra^{1/3}$ uniformly in $Pr$. The prefactor of this scaling depends on $Γ$ and is largest at $Γ\approx 1.9$. The Reynolds number $Re$ for large-$Ra$ rolls scales as $Pr^{-1} Ra^{2/3}$ with a prefactor that is largest at $Γ\approx 4.5$. All of these large-$Ra$ features agree quantitatively with the semi-analytical asymptotic solutions constructed by Chini \& Cox (2009). Convergence of $Nu$ and $Re$ to their asymptotic scalings occurs more slowly when $Pr$ is larger and when $Γ$ is smaller.
An Econometric Analysis of MMS Area-Wide Leasing Versus Tract-Nomination Sales: Does Area-Wide Leasing Result in Lower Government Revenue?
Creators: name: Gelso, Brett R.
name: Gelso, Brett R.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Environmental Economics and Policy
subject: Resource /Energy Economics and Policy
subject: Area-Wide Leasing (AWL)
subject: Outer Continental Shelf (OCS)
subject: High Bonus Bids

description: In 1983, US Minerals Management Service (MMS) switched from the Lease Nomination sale format to Area-Wide Leasing (AWL). Since a complete econometric analysis of the effects of AWL on government revenue has not been conducted in almost twenty years, the purpose of this study was to determine the effects of AWL on government revenue. Results indicated that AWL reduced government revenue by $1,170 to $1,308 on a per acre basis, which is consistent with the findings in prior literature.
International Dairy Notes, January 2008
Creators: name: Dobson, William D.
name: Dobson, William D.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: International Relations/Trade
subject: U.S. Dairy Firms
subject: U.S. Dairy Exports
subject: Foreign Direct Investment
subject: Business Strategies

description: Exporting and Foreign Direct Investment Strategies: Top Five U.S. Dairy Companies
Quartic Horndeski, planar black holes, holographic aspects and universal bounds
Creators: name: Figueroa, José Pablo
name: Pallikaris, Konstantinos
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, we consider a specific shift-invariant quartic Horndeski model, deriving new planar black hole solutions with axionic hair. We explore these solutions in terms of their horizon structure and their thermodynamic properties. We use the gauge/gravity dictionary to derive the DC transport coefficients of the holographic dual with the aim of investigating how the new deformation affects the universality of some renown bound proposals. Although most of them are found to hold true, we nevertheless find a highly interesting parametric violation of the heat conductivity-to-temperature lower bound which acquires a dependence on both the scale and the coupling. Finally, using a perturbative approach, a more brutal violation of the viscocity-to-entropy ratio is demonstrated.
description: LaTeX, 35 pages, 3 figures, as published in J. High Energ. Phys. 2020, 90 (2020)
A school advisor’s pedagogical reflections : towards a framework of learning to teach and teaching to learn
Creators: name: Wong, Gina N.
Publisher: name: University of British Columbia
Year: 2009

description: This self-study analyzes the reflections of a school advisor's perspective on issues and challenges of teaching future teachers how to teach during the practicum period. This research paper is based on the following three questions: What are the issues and challenges of a school advisor? What have I learned about teaching/learning in the role as a school advisor? How can identifying and recognizing these issues help other school advisors? As a result of analyzing a school advisor's pedagogical reflections, a three phase conceptual framework is developed to make sense of the dynamic processes of learning to teach and teaching to learn. Having struggled with the responsibility of guiding and supporting student teachers in the educational profession, I questioned the effectiveness of the knowledge, skills, and understanding of the school advisor's role in teacher education programs. There is substantial research focused on the issues, challenges, experiences, and development of student teachers during teaching practicum. Whenever research studies address the school advisor's role in the teacher training triad, they are often positioned from the view of the student teacher; few research studies present the perspective of school advisors who play a significant role in teacher education programs. The research data was gathered from the collection of practicum cycles of pre-and post-lesson conferences between a school advisor and a student teacher. Each conference was audio and video taped. The conferences focused on the reflective practice or thinking of the school advisor while guiding a student teacher through the practicum. School advisors must address pedagogical issues such as educational beliefs and values, curriculum planning, lesson implementation, child development, classroom management, and extracurricular activities. In addition, interpersonal challenges such as interpersonal skills, communication abilities, and social/emotional interactions contribute to the dynamics of all members involved in the learning process. A tentative framework is developed to encompass the dynamic processes of learning to teach and teaching to learn. The framework has three phases that progress in chronological order from initiation, advancing teaching development, and closure/launching. In summary, this self-study of pedagogical reflections from a school advisor contributes one voice to a neglected perspective in the conversations to advance our collective knowledge and understanding of teacher education.
title: Training Curricula for the Kentucky Transportation Cabinet Department of Highways
Creators: name: Albright, Nancy
name: Gibson, Bryan
name: Van Dyke, Chris
name: Jasper, Jeff
name: Kreis, Doug
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2019
Subjects: subject: FOS: Civil engineering

description: Most state departments of transportation (DOTs) offer their employees professional development opportunities (e.g., training courses) so they can build their expertise and in doing so facilitate agency efforts to fulfill their business mandates. The Kentucky Transportation Cabinet (KYTC) is no different in this regard. While professional development opportunities are invaluable, and while the Cabinet offers a number of trainings to its staff, currently there exists no comprehensive training curricula to help professionals and paraprofessionals systematically grow their knowledge and skills and ensure KYTC maintains a robust portfolio of technical competencies across the organization. The inconsistent and ad hoc manner in which trainings are made available in turn produces unevenness in the distribution of knowledge and skills across the Cabinet. To address the challenge, researchers at the Kentucky Transportation Center (KTC) were asked to develop training curricula for different subject-matter areas. Before devising these curricula, researchers examined practices and programs in place at other state DOTs which are designed to improve professional development as well as the trainings currently available from at or through the Cabinet. Additionally, previous course offerings and attendance figures were analyzed to understand which trainings have proven the most valuable. Based on these analyses, researchers prepared training curricula for five categories: construction, maintenance, roadway design, project management, and section engineers. Within each category, curricula identify training opportunities for personnel classified as entry, mid-level, and advanced. Undoubtedly, the curricula outlined in this report serve only as a starting point; they will need to undergo refinement as the needs of both KYTC and its employees continue to evolve.
description: © 2020 University of Kentucky, Kentucky Transportation Center
Report Number: KTC-19-12/SPR17-543-1F
Null energy condition and superluminal propagation
Creators: name: Dubovsky, S.
name: Gregoire, T.
name: Nicolis, A.
name: Rattazzi, R.
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: We study whether a violation of the null energy condition necessarily implies the presence of instabilities. We prove that this is the case in a large class of situations, including isotropic solids and fluids relevant for cosmology. On the other hand we present several counter-examples of consistent effective field theories possessing a stable background where the null energy condition is violated. Two necessary features of these counter-examples are the lack of isotropy of the background and the presence of superluminal modes. We argue that many of the properties of massive gravity can be understood by associating it to a solid at the edge of violating the null energy condition. We briefly analyze the difficulties of mimicking $\dot H>0$ in scalar tensor theories of gravity.
description: 46 pages, 6 figures
Additional file 1 of Drug-target interaction prediction using semi-bipartite graph model and deep learning
Creators: name: Manoochehri, Hafez Eslami
name: Nourani, Mehrdad
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1 Supplementary table and figure.
Exponential decay for negative feedback loop with distributed delay
Creators: name: Haskovec, Jan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 34K06, 34K25, 34K11

description: We derive sufficient conditions for exponential decay of solutions of the delay negative feedback equation with distributed delay. The conditions are written in terms of exponential moments of the distribution. Our method only uses elementary tools of calculus and is robust towards possible extensions to more complex settings, in particular, systems of delay differential equations. We illustrate the applicability of the method to particular distributions - Dirac delta, Gamma distribution, uniform and truncated normal distributions.
description: 8 pages, 2 figures
Eigenmodes of index-modulated layers with lateral PMLs
Creators: name: Skigin, Diana C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Maxwell equations are solved in a layer comprising a finite number of homogeneous isotropic dielectric regions ended by anisotropic perfectly matched layers (PMLs). The boundary-value problem is solved and the dispersion relation inside the PML is derived. The general expression of the eigenvalues equation for an arbitrary number of regions in each layer is obtained, and both polarization modes are considered. The modal functions of a single layer ended by PMLs are found, and their orthogonality relation is derived. The present method is useful to simulate scattering problems from dielectric objects as well as propagation in planar slab waveguides. Its potential to deal with more complex problems such as the scattering from an object with arbitrary cross section in open space using the multilayer modal method is briefly discussed.
description: 17 pages, 4 figures
Eigenstate thermalization hypothesis beyond standard indicators: Emergence of random-matrix behavior at small frequencies
Creators: name: Richter, Jonas
name: Dymarsky, Anatoly
name: Steinigeweg, Robin
name: Gemmer, Jochen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using numerical exact diagonalization, we study matrix elements of a local spin operator in the eigenbasis of two different nonintegrable quantum spin chains. Our emphasis is on the question to what extent local operators can be represented as random matrices and, in particular, to what extent matrix elements can be considered as uncorrelated. As a main result, we show that the eigenvalue distribution of band submatrices at a fixed energy density is a sensitive probe of the correlations between matrix elements. We find that, on the scales where the matrix elements are in a good agreement with all standard indicators of the eigenstate thermalization hypothesis, the eigenvalue distribution still exhibits clear signatures of the original operator, implying correlations between matrix elements. Moreover, we demonstrate that at much smaller energy scales, the eigenvalue distribution approximately assumes the universal semicircle shape, indicating transition to the random-matrix behavior, and in particular that matrix elements become uncorrelated.
description: 13 pages, 12 figures
Dia Mundial dos Cuidados Paliativos 2024
Creators: name: Alves de Oliveira, João Batista
Publisher: name: Zenodo
Year: 2024
Subjects: Cuidados Palativos
Educação Paliativo
Saúde Pública

description: No segundo sábado de outubro é comemorado o Dia Mundial do Cuidado Paliativo, cuja finalidade é dar notoriedade para a área e defender os melhores serviços em todo mundo. Esse ano o Brasil tem como destaque a aprovação da Política Nacional de Cuidados Paliativos.
Directions of Outflows, Disks, Magnetic Fields, and Rotation of YSOs in Collapsing Molecular Cloud Cores
Creators: name: Matsumoto, Tomoaki
name: Tomisaka, Kohji
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The collapse of slowly rotating molecular cloud cores threaded by magnetic fields is investigated by high-resolution numerical simulation. Outflow formation in the collapsing cloud cores is also followed. In the models examined, the cloud core and parent cloud rotate rigidly and are initially threaded by a uniform magnetic field. The simulations show that the cloud core collapses along the magnetic field lines. The magnetic field in the dense region of the cloud core rotates faster than that of the parent cloud as a consequence of spin-up of the central region during the collapse. The cloud core exhibits significant precession of the rotation axis, magnetic field, and disk orientation, with precession highest in the models with low initial field strength ($\lesssim 20 μ{\rm G}$). Precession in models with initial fields of $\sim 40 μ{\rm G}$ is suppressed by strong magnetic braking. Magnetic braking transfers angular momentum form the central region and acts more strongly on the component of angular momentum oriented perpendicular to the magnetic field. After the formation of an adiabatic core, outflow is ejected along the local magnetic field lines. Strong magnetic braking associated with the outflow causes the direction of angular momentum to converge with that of the local magnetic field, resulting in the convergence of the local magnetic field, angular momentum, outflow, and disk orientation by the outflow formation phase. The magnetic field of a young star is inclined at an angle of no more than $30^\circ$ from that of the parent cloud at initial field strengths of $\sim 20 μ{\rm G}$, while at an initial field strength of $\sim 40 μ{\rm G}$, the magnetic field of the young star is well aligned with that of the parent cloud.
description: Accepted by ApJ. Document with high quality figures is available in http://meric.i.hosei.ac.jp/~matsu/outflow04/
Flat-space Limit of Extremal Curves
Creators: name: Fareghbal, Reza
name: Shalamzari, Mehdi Hakami
name: Karimi, Pedram
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: According to the Ryu-Takayanagi prescription, the entanglement entropy of subsystems in the boundary conformal field theory (CFT) is proportional to the area of extremal surfaces in bulk asymptotically Anti-de Sitter (AdS) spacetimes. The flat-space limit of these surfaces is not well defined in the generic case. We introduce a new curve in the three-dimensional asymptotically AdS spacetimes with a well-defined flat-space limit. We find this curve by using a new vector, which is vanishing on it and is normal to the bulk modular flow of the original interval in the two-dimensional CFT. The flat-space limit of this new vector is well defined and gives rise to the bulk modular flow of the corresponding asymptotically flat spacetime. Moreover, after Rindler transformation, this new vector is the normal Killing vector of the BTZ inner horizon. We reproduce all known results about the holographic entanglement entropy of Bondi-Metzner-Sachs invariant field theories, which are dual to the asymptotically flat spacetimes.
description: 24 pages, 1 figure, V2: published version
The magnetic field and pressure dependence of the magnetic ordering transition in NaxCoO2 (0.6
Creators: name: Wooldridge, J.
name: Paul, D. McK.
name: Balakrishnan, G.
name: Lees, M. R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have measured the magnetic field (H<90 kOe) and pressure (P<10 kbar) dependence of the magnetic ordering temperature, Tmag, in single crystal samples of NaxCoO2 for a range of Na concentrations (0.60
description: 11 pages, 6 figures. Changes made after referee comments
Additional file 1 of The occupational sitting and physical activity questionnaire (OSPAQ): a validation study with accelerometer-assessed measures
Creators: name: Maes, Iris
name: Ketels, Margo
name: Delfien Van Dyck
name: Clays, Els
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Flowchart of the recruitment of the study population; Description: This figure provides more detailed information of the flow of the recruitment of the study population.
Evolution of truncated and bent gravity wave solitons: the Mach expansion problem
Creators: name: Ryskamp, Samuel
name: Maiden, Michelle D.
name: Biondini, Gino
name: Hoefer, Mark A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The dynamics of initially truncated and bent line solitons for the Kadomtsev-Petviashvili (KPII) equation modelling internal and surface gravity waves are analysed using modulation theory. In contrast to previous studies on obliquely interacting solitons that develop from acute incidence angles, this work focuses on initial value problems for the obtuse incidence of two or three partial line solitons, which propagate away from one another. Despite counterpropagation, significant residual soliton interactions are observed with novel physical consequences. The initial value problem for a truncated line soliton-describing the emergence of a quasi-one-dimensional soliton from a wide channel-is shown to be related to the interaction of oblique solitons. Analytical descriptions for the development of weak and strong interactions are obtained in terms of interacting simple wave solutions of modulation equations for the local soliton amplitude and slope. In the weak interaction case, the long-time evolution of truncated and large obtuse angle solitons exhibits a decaying, parabolic wave profile with temporally increasing focal length that asymptotes to a cylindrical Korteweg-de Vries soliton. In contrast, the strong interaction case of slightly obtuse interacting solitons evolves into a steady, one-dimensional line soliton with amplitude reduced by an amount proportional to the incidence slope. This strong interaction is identified with the "Mach expansion" of a soliton with an expansive corner, contrasting with the well-known Mach reflection of a soliton with a compressive corner. Interestingly, the critical angles for Mach expansion and reflection are the same. Numerical simulations of the KPII equation quantitatively support the analytical findings.
description: 37 pages, 17 figures
Additional file 1 of Human translatability of the GAN diet-induced obese mouse model of non-alcoholic steatohepatitis
Creators: name: Hansen, Henrik H.
name: Ægidius, Helene M.
name: Oró, Denise
name: Evers, Simon S.
name: Heebøll, Sara
name: Eriksen, Peter Lykke
name: Thomsen, Karen Louise
name: Bengtsson, Anja
name: Veidal, Sanne S.
name: Feigh, Michel
name: Suppli, Malte P.
name: Knop, Filip K.
name: Grønbæk, Henning
name: Miranda, Diego
name: Trevaskis, James L.
name: Vrang, Niels
name: Jelsing, Jacob
name: Rigbolt, Kristoffer T. G.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology

description: Additional file 1: Table S1. In-house gene panel on candidate genes associated with NASH and fibrosis.
Berechnung Paris-kompatibler Emissionspfade mit dem ESPM am Beispiel Deutschlands
Creators: name: Sargl, Manfred
name: Wiegand, Daniel
name: Wittmann, Günter
name: Wolfsteiner, Andreas
Publisher: name: Zenodo
Year: 2021
Subjects: Paris ambition mechanism
Pariser-Ambtionsmechanismus
Paris-kompatible Ziele

description: Das hier verwendete Extended Smooth Pathway Model (ESPM) bietet einen Rahmen, um Paris-kompatible nationale Emissionspfade herzuleiten. Am Beispiel Deutschlands werden exemplarische Emissionsziele gezeigt.
A new statistical mechanical formalism for gases
Creators: name: Rohrmann, R. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An equilibrium theory of classical fluids based on the space distribution among the particles is derived in the framework of the energy minimization method. This study is motivated by current difficulties of evaluation of optical properties in atmospheres of degenerate stars. Present paper focuses on diluted one-component systems, where the interaction energy is calculated as a sum of binary contributions. The spatial configuration of the gas is described in terms of a particle-state variable v which roughly measures the free space surrounding each particle. The formalism offers a unified treatment of both thermodynamics and structure of fluids, since it not only provides the state function (the Helmholtz free energy) of a fluid, but also automatically gives information on the microstructure of the system (e.g. the nearest-neighbor distribution function). Equations of state and nearest-neighbor distribution functions of perfect and hard-body fluids are obtained in straightforward way in one, two and three dimensions. The formalism is applied to describe the atomic population in a partially ionized hydrogen gas. Combined and self-consistent evaluations of atomic populations and internal effects on bound states are performed in a detailed form. The present theory allow us to resolve the atomic density at each internal level into groups of atoms which experiment different perturbation intensities according to the size of their spaces v.
description: 17 pages, 13 figures. Accepted for publication in Physica A
Identifying galaxy groups at high redshift from incomplete spectroscopic data: I. The group finder and application to zCOSMOS
Creators: name: Wang, Kai
name: Mo, H. J.
name: Li, Cheng
name: Meng, Jiacheng
name: Chen, Yangyao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Identifying galaxy groups from redshift surveys of galaxies plays an important role in connecting galaxies with the underlying dark matter distribution. Current and future high-$z$ spectroscopic surveys, usually incomplete in redshift sampling, present both opportunities and challenges to identifying groups in the high-$z$ Universe. We develop a group finder that is based on incomplete redshift samples combined with photometric data, using a machine learning method to assign halo masses to identified groups. Test using realistic mock catalogs shows that $\gtrsim 90\%$ of true groups with halo masses $\rm M_h \gtrsim 10^{12} M_{\odot}/h$ are successfully identified, and that the fraction of contaminants is smaller than $10\%$. The standard deviation in the halo mass estimation is smaller than 0.25 dex at all masses. We apply our group finder to zCOSMOS-bright and describe basic properties of the group catalog obtained.
description: 18 pages, 12 figures, 6 table. MNRAS accepted. Comments are welcomed
AN EMPIRICAL STUDY ON THE FACTORS THAT DRIVES THE RURAL CUSTOMERS TO PURCHASE LIFE INSURANCE PRODUCTS FROM LIFE INSURANCE CORPORATION OF INDIA
Creators: name: Dr. P. Kamaraj
Publisher: name: Zenodo
Year: 2024

description: This empirical study investigates the factors that drive rural customers to purchase life insurance products from the Life Insurance Corporation of India (LIC). Despite the increasing awareness of the importance of life insurance, rural penetration remains low, necessitating a deeper understanding of the unique motivations and challenges faced by rural consumers. Through a quantitative approach, the study collects data from a sample of rural respondents using structured questionnaires. Key factors examined include demographic influences, economic conditions, social norms, and the impact of marketing strategies employed by LIC. The findings aim to provide valuable insights for LIC to enhance its outreach and product offerings in rural markets, ultimately contributing to greater financial inclusion and security among rural populations.