cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Holistic Approach for an Energy-Flexible Operation of a Machine Tool with Cooling Supply
Creators: name: Lindner, Martin
name: Grosch, Benedikt Emanuel
name: Elserafi, Ghada
name: Dietrich, Bastian
name: Weigold, Matthias
Publisher: name: MDPI
Year: 2024

description: The following paper examines the practicality of a methodical approach for energy-flexible and energy-optimal operation in the field of metal-cutting production. The analysis is based on the example of a grinding machine and its central cooling-supply system. In the first step, an energy-flexibility data model is built for each subsystem, which describes energy flexibility potentials generically. This is then extended to enable combined energy cost-optimal production planning. As a basis for the links between the data model representations, the cold flows between the subsystems are modeled using parameter-estimation methods, which have a mean absolute error of only 2.3 percent, making the subsequent installation of heat meters unnecessary. Based on the presented approach, the results successfully validate the possibility of energy-flexible cost-optimal and sensor-reduced production planning by reducing energy costs by 6.6 percent overall and 1.9 percent per workpiece produced.
Shukla Distribution and its Application
Creators: name: Shukla, Kamlesh Kumar
name: Shanker, Rama
Publisher: name: Reliability: Theory & Applications
Year: 2019
Subjects: Lifetime distributions
Moments
Hazard rate function
Mean residual life function
Maximum likelihood estimation
Goodness of fit.

description: In this paper a two-parameter lifetime distribution named, ‘Shukla distribution’ which includes several one parameter lifetime distributions including exponential, Shanker, Ishita, Pranav ,Rani and Ram Awadh as particular cases, has been proposed and investigated. Its moments have been obtained. The hazard rate function, mean residual life function and stochastic ordering of the distribution have been discussed. Maximum likelihood estimation has been explained for estimating the parameters of the distribution. Applications of the distribution have been explained through real life time data and its fit has been found satisfactory over well-known one parameter and twoparameter lifetime distributions.
Gravity waves from relativistic binaries
Creators: name: Levin, Janna
name: O'Reilly, Rachel
name: Copeland, E. J.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The stability of binary orbits can significantly shape the gravity wave signal which future Earth-based interferometers hope to detect. The inner most stable circular orbit has been of interest as it marks the transition from the late inspiral to final plunge. We consider purely relativistic orbits beyond the circular assumption. Homoclinic orbits are of particular importance to the question of stability as they lie on the boundary between dynamical stability and instability. We identify these, estimate their rate of energy loss to gravity waves, and compute their gravitational waveforms.
description: LaTeX file
Fuzzy Reliability of a System by Converting Trapezoidal Intervalued Fuzzy Number to Pentagonal Triangular Intervalued Fuzzy Number
Creators: name: Naithani, Kapil
name: Dangwal, Rajesh
Publisher: name: Reliability: Theory & Applications
Year: 2019
Subjects: Healthcare system
Fault tree
Pentagonal-triangular intervalued fuzzy numbers
a cut
signed distance
COG.

description: In classical set theory there exist only two possibility of any element belonging to the set yes or no, that is its probability of belonging to the set either 0 or 1, but this theory is fail to predictable in many system where the possibility of an element belonging to set is not exact, that is there exist some vagueness about the element affecting the system. Therefore L. A. Zadeh gives a new theory of fuzzyness, where the belongingness of an element can except 0 or 1 and take any value between [0, 1]. This new approach give us much benefit to modelling the real situation and find the reliability of any system. This theory also useful to find the most critical event in any fault tree model. Fuzzy theory are applicable in many areas industrial, technical, engineering, medical etc.
HOW ETHICAL LEADERSHIP FOSTER EMPLOYEE BEHAVIORS: ROLE OF ETHICAL CULTURE
Creators: name: TRAN QUANG THANG
name: QUANG VAN NGO
Publisher: name: Zenodo
Year: 2024
Subjects: Employee Behaviors, Ethical Leadership, Ethical Culture, Turnover Behavior.

description: Abstract

This research explores the identification and assessment of the impact of ethical leadership on employee behavior, emphasizing the mediating role of ethical culture. Using a quantitative research approach and a pre-structured questionnaire, the study surveyed 938 participants. Data were collected and analyzed with SPSS 25 and AMOS 24 software. The findings indicate a positive correlation between ethical leadership and ethical culture, with ethical culture negatively influencing employee turnover behavior. Furthermore, the results highlight that ethical leadership indirectly shapes employee commitment and turnover behavior through its impact on ethical culture. In light of these research outcomes, the authors propose managerial implications aimed at enhancing ethical leadership and fostering a robust ethical culture. The ultimate goal is to mitigate employees' turnover behavior, providing valuable insights for organizational leaders seeking to create a healthier and more sustainable work environment. This study contributes to the existing literature by offering a comprehensive model that integrates ethical leadership, ethical culture, and employee behavior. The practical implications underscore the importance of leaders not only exhibiting ethical behavior but also cultivating a culture that sustains these values, ultimately contributing to a healthier organizational climate.
Waste cooking oil to jet-diesel fuel range using 2-propanol via catalytic transfer hydrogenation reactions
Creators: name: Asiedu, Alexander
name: Barbera, Elena
name: Naurzaliyev, Rustem
name: Bertucco, Alberto
name: Kumar, Sandeep
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Computational Biology

description: 2-propanol (99.9 wt%) was used as an H-donor to produce jet/diesel-fuel range from waste cooking oil (WCO) over a fixed bed of granular activated carbon in a continuous flow reactor. The reactions were carried out at 2 bar and at a temperature range of 300–400 °C with weight hourly space velocity (WHSV) of 6.7 h−1. An optimum yield of 72% liquid hydrocarbon (LHC) at 380 °C was observed. The LHC contained 32% alkanes, 16% aromatics and 37% alkenes at the optimum temperature. Using 2-propanol as an in situ hydrogen source will potentially reduce the volume ratio of hydrogen source to oil (0.4 L 2-propanol/L WCO) compared to what is reported in the literature for conventional use of hydrogen gas at high pressures. Evaluation of reaction kinetics revealed that the rate of catalytic transfer hydrogenation of WCO is second order with an activation energy of 53 kJ/mol. With 10 hours of continuous catalytic transfer hydrogenation (CTH) of WCO, the catalyst maintained its catalytic activity despite the inherent coke formation. Catalytic Transfer Hydrogenation of waste cooking oil (70% C18:2 & C18:1) using 2-propanol at 2 bars and 380 °C over activated carbon
Dataset for Everyday Childhoods research project. Everyday Childhoods DOI Record
Creators: name: Berriman, Liam
Publisher: name: University of Sussex
Year: 2019
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Digital Humanities

description: Welcome to the Everyday Childhoods dataset. You can access the Everyday Childhoods dataset via this link: https://sussex.figshare.com/Everyday_Childhoods or via the project and collection links.
On rational reactions – and other ones – of overloaded magnetic gears
Creators: name: Rehberg, Ingo
Publisher: name: Zenodo
Year: 2024
Subjects: magnetic coupling, gear, cogging-free, overload protection, Python animation

description: Experiments exploring the coupling of two rotating spherical magnets reveal a cogging-free coupling for two specific angles between the input and output rotation axes (see enclosed movie). The striking difference between these two phase-locked modes of operation is the reversed sense of rotation of the driven magnet. For other angles, the cogging leads to a more complex dynamical behaviour. The experimental results can be understood by a mathematical model based on pure dipole-dipole interaction, with the addition of adequate friction terms. Like all magnetic couplings, the setup contains intrinsic overload protection. The dynamic answer of the gear with cogging to an overload shows a plethora of modes of the driven magnet which can be explored interactively with the enclosed Python script.
description: In Version 1.1.1, the Python code is updated.
Focusing Vacuum Fluctuations
Creators: name: Ford, L. H.
name: Svaiter, N. F.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The focusing of the vacuum modes of a quantized field by a parabolic mirror is investigated. We use a geometric optics approximation to calculate the energy density and mean squared field averages for scalar and electromagnetic fields near the focus. We find that these quantities grow as an inverse power of the distance to the focus. There is an attractive Casimir-Polder force on an atom which will draw it into the focus. Some estimates of the magnitude of the effects of this focusing indicate that it may be observable.
description: 20 pages, 4 figures; typos corrected, two refs and some comments added
On rational reactions – and other ones – of overloaded magnetic gears
Creators: name: Rehberg, Ingo
Publisher: name: Zenodo
Year: 2022
Subjects: magnetic coupling, gear, cogging-free, overload protection, Python animation

description: Experiments exploring the coupling of two rotating spherical magnets reveal a cogging-free coupling for two specific angles between the input and output rotation axes (see enclosed movie). The striking difference between these two phase-locked modes of operation is the reversed sense of rotation of the driven magnet. For other angles, the cogging leads to a more complex dynamical behaviour. The experimental results can be understood by a mathematical model based on pure dipole-dipole interaction, with the addition of adequate friction terms. Like all magnetic couplings, the setup contains intrinsic overload protection. The dynamic answer of the gear with cogging to an overload shows a plethora of modes of the driven magnet which can be explored interactively with the enclosed Python script.
Coupling fluid adsorption with porous media deformation using classical density functional theory and enhanced poromechanics
Creators: name: biot-bazant, figshare admin
name: Khaldouni, Youssef
name: Perrier, Laurent
name: Miqueu, Christelle
name: David, Gregoire
Publisher: name: The Biot-Bazant Conference
Year: 2021
Subjects: subject: Mechanics
subject: 91504 Fluidisation and Fluid Mechanics
subject: FOS: Other engineering and technologies

description: This publication is part of the proceedings of the Biot-Bažant Conference on Engineering Mechanics and Physics of Porous Materials, which took place virtually on June 1-3, 2021. It contains a one-page abstract and the video of the talk that was given at the conference.
Dynamic structure factor of gold
Creators: name: Gurtubay, I. G.
name: Pitarke, J. M.
name: Campillo, I.
name: Rubio, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have investigated the role of localized {\it d} bands in the dynamical response of Au, on the basis of {\it ab initio} pseudopotential calculations. The density-response function has been evaluated in the random-phase approximation. For small momenta, we have found a double peak structure in the energy-loss function, which results from the presence of {\it d} electrons. These results are in good agreement with the experimentally determined optical response of gold. We also analyze the dependence of the dynamical structure factor on the wave vector {\bf q}.
description: 7 pages, 4 figures, to appear in Comp. Mater. Sci
Lawal in 360° Photographs: Qatar’s Culture through the Lens of a Digital Collection of Functional Objects
Creators: name: Al-Buainain, Noof Ahmed S.A.
Publisher: name: Manara - Qatar Research Repository
Year: 2025
Subjects: classificationCode: 44
subject: Human society

description: This project is designed to curate functional objects found in Qatari homes of the twentieth century and present them through a digital narrative. The featured items are tangible products of human creativity, either locally created or imported. The aim of the project is to explore the significance of these objects and artefacts for Qatar’s culture, as well as investigating their life cycle. This analysis will allow us to trace the transition of tangible cultural heritage from functional to displayable. The outcome of this project is presented as a website which displays a series of cultural objects in a rotating 360° degree GIF and short clips. Each object is accompanied by a short bilingual description about its materials, use, and a colloquial Arabic name. In addition to a detailed account of the process, the thesis provides a succinct literature review on digital heritage, an outline of methodology, and a discussion of findings. The project contributes to the ongoing process of documenting and curating Qatar’s tangible heritage by means of digital technologies, thereby advancing the preservation, knowledge and understanding of Qatar’s culture in the twentieth century. The website creates a space where users can explore cultural objects. It evokes gentle nostalgic feelings as it reminds us of how life keeps changing, and familiar everyday objects disappear from our lives.
OPERAS-P Deliverable D6.3: Report on innovative approach to SSH FAIR data and publications
Creators: name: Avanço, Karla
name: Giglia, Elena
name: Gingold, Arnaud
Publisher: name: Zenodo
Year: 2021
Subjects: OPERAS
FAIR
data
SSH
social sciences
humanities
OPERAS-P

description: This report outlines the main activities and findings of OPERAS-P Task 6.3, which aimed at providing the knowledge base and the view of the community in finding the most suitable way to make the FAIRification of SSH data possible, with a threefold approach: "Speak the same language," "Work with the community," and "Showing the road ahead."
Excitation of plasma oscillations by moving Josephson vortices in layered superconductors
Creators: name: Artemenko, S. N.
name: Remizov, S. V.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In the frame of an exactly solvable model we calculate electric and magnetic fields created by uniformly moving lattice of Josephson vortices driven by the transport current in the magnetic field parallel to conducting layers. The distribution of fields and currents is strongly modified at large velocities of the vortex lattice, plasma oscillations of superconducting electrons being excited by flux flow at low temperatures. This modifies the flux flow resistivity and results in interference features in I-V curves, thus regions of negative differential conductivity appear in which the uniform motion of the vortex lattice is not stable. The spectrum of electromagnetic radiation by moving vortices contains large peaks related to the excitation of plasma oscillations and to the Cherenkov radiation.
description: 7 pages, 2 postscript figures, Latex
Geometrical scaling of prompt photons in heavy ion collisions
Creators: name: Praszalowicz, Michal
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss geometrical scaling (GS) for the prompt (direct) photons produced in heavy ion collisions. To this end we first introduce the concept of GS and illustrate its emergence on the example of charged particles. Next, we analyse direct photon data from RHIC and from the LHC. We show that the data support the hypothesis of GS in terms of participant number related to different centrality classes. We also study GS at different energies, however a more detailed study will be possible only when data for at least three different energies from one experiment will be available and also when we use the data obtained from the collisions of large systems (Cu+Cu, Au+Au, Pb+Pb) and small systems (p+p, d+Au, p+Au).
description: 10 page, 7 figures, talk at the ISMD 2018 in Singapore
On certain global conformal invariants and 3-surface twistors of initial data sets
Creators: name: Szabados, Laszlo B.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Chern-Simons functionals built from various connections determined by the initial data $h_{μν}$, $χ_{μν}$ on a 3-manifold $Σ$ are investigated. First it is shown that for asymptotically flat data sets the logarithmic fall-off for $h_{μν}$ and $rχ_{μν}$ is the necessary and sufficient condition of the existence of these functionals. The functional $Y_{k,l}$, built in the vector bundle corresponding to the irreducible representation of SL(2,C) labelled by (k,l), is shown to be determined by the Ashtekar-Chern-Simons functional and its complex conjugate. $Y_{k,l}$ is conformally invariant precisely in the l=k (i.e. tensor) representations. An unexpected connection with twistor theory is found: $Y_{k,k}$ can be written as the Chern-Simons functional built from the 3-surface twistor connection, and the not identically vanishing spinor parts of the 3-surface twistor curvature are given by the variational derivatives of $Y_{k,k}$ with respect to $h_{μν}$ and $χ_{μν}$. The time derivative $\dot Y_{k,k}$ of $Y_{k,k}$ is another conformal invariant of the initial data set, and for vanishing $\dot Y_{k,k}$, in particular for all Petrov III and N spacetimes, the Chern-Simons functional is a conformal invariant of the whole spacetime.
description: 18 pages, Plain TEX
The Geometry of Cosmological Correlators
Creators: name: Benincasa, Paolo
name: Dian, Gabriele
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2024
Subjects: correlation function
geometry
wave function
buildings
Robertson-Walker
factorization
triangulation
surface
toy model
Feynman graph
structure
cosmological model

description: We provide a first principle definition of cosmological correlation functions for a large class of scalar toy models in arbitrary FRW cosmologies, in terms of novel geometries we name {\it weighted cosmological polytopes}. Each of these geometries encodes a universal rational integrand associated to a given Feynman graph. In this picture, all the possible ways of organising, and computing, cosmological correlators correspond to triangulations and subdivisions of the geometry, containing the in-in representation, the one in terms of wavefunction coefficients and many others. We also provide two novel contour integral representations, one connecting higher and lower loop correlators and the other one expressing any of them in terms of a building block. We study the boundary structure of these geometries allowing us to prove factorisation properties and Steinmann-like relations when single and sequential discontinuities are approached. We also show that correlators must satisfy novel vanishing conditions. As the weighted cosmological polytopes can be obtained as an orientation-changing operation onto a certain subdivision of the cosmological polytopes encoding the wavefunction of the universe, this picture allows us to sharpen how the properties of cosmological correlators are inherited from the ones of the wavefunction. From a mathematical perspective, we also provide an in-depth characterisation of their adjoint surface.
title: Γενικευμένη συνάρτηση πιθανοφάνειας για μοντέλα μετασχηματισμού και επιλογή μοντέλων
titleType: AlternativeTitle
Creators: name: Lymberatos, Anastasios E.
Publisher: name: National Technological University of Athens
Year: 2014
Subjects: Επιβίωση
Ευπάθεια
Μοντέλα μετασχηματισμού
Μοντέλα αναλογικών κινδύνων του Cox
Likelihood
Proportional
Hazards
Frailty models
Transformation models
Cox proportional hazards model

description: 160 σ.
description: Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία. Διεπιστημονικό-Διατμηματικό Πρόγραμμα Μεταπτυχιακών Σπουδών (Δ.Π.Μ.Σ.) “Εφαρμοσμένες Μαθηματικές Επιστήμες”
description: Η παρούσα εργασία αποτελείται από τέσσερα κεφάλαια: Στο πρώτο, παρουσιάζονται οι εισαγωγικές έννοιες της Ανάλυσης Επιβίωσης και τα μοντέλα διάρκειας ζωής (παραμετρικά και μη). Στο δεύτερο, μετά από μία γενική θεώρηση της προσαρμογής των μοντέλων παλινδρόμησης στα δεδομένα διάρκειας ζωής, παρουσιάζεται εκτενώς το μοντέλο αναλογικών κινδύνων του Cox (Cox proportional hazards model). Στη συνέχεια, το μοντέλο του Cox εμπλουτίζεται με την εισαγωγή σε αυτό της τυχαίας μεταβλητής της ευπάθειας, της οποίας μοντέλα μελετούμε στο κεφ. 3 (frailty models). Στο κεφ. 4 παρουσιάζονται τα μοντέλα μετασχηματισμού (transformation models) ως επέκταση αυτών της ευπάθειας. Τέλος, μελετάται η δημιουργία και εκτέλεση προγραμμάτων στην R για την επιλογή μεταβλητών και την εκτίμηση παραμέτρων στα μοντέλα μετασχηματισμού, με χρήση της γενικευμένης συνάρτησης πιθανοφάνειας και των κριτηρίων AIC και BIC.
description: This thesis consists of four chapters: The first presents the basic concepts of Survival Analysis and the modeling of time-to-event data. In the second chapter, after an overview of the adjustment of regression models to lifetime data, we study extensively the proportional hazards model of Cox. Then the Cox model is enriched by the introduction of the frailty random variable, models of which we study in chapter 3 (frailty models). In chapter 4 we present the transformation models as an extension of the frailty models. Finally, we study the creation and execution of programs in R for the selection of variables and the estimation of parameters in transformation models, using the generalized likelihood function and the AIC and BIC criteria.
An interacting New Holographic Dark Energy in the framework of fractal cosmology
Creators: name: Sadri, Ehsan
name: Khurshudyan, Martiros
name: Chattopadhyay, Surajit
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we study an interacting holographic dark energy model in the framework of fractal cosmology. The features of fractal cosmology could pass ultraviolet divergencies and also make a better understanding of the universe in different dimensions. We discuss a fractal FRW universe filled with the dark energy and cold dark matter interacting with each other. It is observed that the Hubble parameter embraces the recent observational range while the deceleration parameter demonstrates an accelerating universe and a behavior similar to $Λ$CDM. Plotting the equation of state shows that it lies in phantom region for interaction mode. We use $Om$-diagnostic tool and it shows a phantom behavior of dark energy which is a condition of avoiding the formation of black holes. Finally we execute the StateFinder diagnostic pair and all the trajectories for interacting and non-interacting state of the model meet the fixed point $Λ$CDM at the start of the evolution. A behavior similar to Chaplygin gas also can be observed in statefinder plane. We find that new holographic dark energy model (NHDE) in fractal cosmology expressed the consistent behavior with recent observational data and can be considered as a model to avoid the formation of black holes in comparison with the main model of NHDE in the simple FRW universe. It has also been observed that for the interaction term varying with matter density, the model generates asymptotic de-Sitter solution. However, if the interaction term varies with energy density, then the model shows Big-Rip singularity. Using our modified CAMB code, we observed that the interacting model suppresses the CMB spectrum at low multipoles $l<50$ and enhances the acoustic peaks. Based on the observational data sets used in this paper and using Metropolis-Hastings method of MCMC numerical calculation, ...
description: 18 pages, 7 figures, Accepted in Astrophys. Space Sci. Journal
title: Friends or Foes: Interpreting the Relationship Between Two Synoptic Small Mammals in Southeastern Virginia, the Hispid Cotton Rat (Sigmodon Hispidus) and eastern Harvest Mouse (Reithrodontomys Humulis)
Creators: name: Crawford, Sarah A.
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2013

description: Relatively little is known about the relationship between the hispid cotton rat (Sigmodon hispidus) and the eastern harvest mouse (Reithrodontomys humulis). Literature on these two syntopic genera in other areas of the United States suggests that competition may exist; however, both species seem to be greatly affected by environmental changes, making it difficult to draw any definite conclusions. Live trapping and microhabitat data collected from 2 old fields in Chesapeake, Virginia over a 9-year period were used to assess the biotic and abiotic influences on space use by these two species. Each I-ha plot consisted of 2 live traps placed at 12.5 meter intervals that were live-trapped for 3 days each month. Analyses revealed space use by both species to be less influenced by each other and more influenced by microhabitat features. Although some signs of interspecific influence were detected, there was no relationship between monthly densities on the 1st grid (rs= 0.216, P = 0.235, n = 32) and there was a positive correlation between monthly densities on the 2nd grid (rs= 0.419, P < 0.001, n = 75), the latter of which was attributed to nearly synchronous density patterns. Associations between monthly capture locations were consistently not significant, indicating space use within each grid was also not affected by the other species. Cotton rats preferred dry areas with dense overhead cover and were more selective than harvest mice, which seemed to require only some degree of vegetative cover. Overall, hispid cotton rats and eastern harvest mice appear to coexist in southeastern Virginia, with abiotic factors influencing density and space use patterns.
title: Educational excellence and resilience through digitalisation: what the UK can learn from India and others
Creators: name: Fair, Nic
name: Deshmukh, Ajita
name: Sackley, Alistair
Publisher: name: University of Southampton
Year: 2024
Subjects: subject: Digital education, Educational resilience, Digitalisation, Resilience, Policy Advice, India, Recommendations, Educational excellence

description: The COVID-19 pandemic has exposed significant vulnerabilities in the UK's educational system, particularly in its capacity to adapt to rapid changes and maintain educational excellence during crises and into the future. As the UK continues to recover from the pandemic, this paper suggests there is an urgent need to reimagine and future-proof our education system through effective digitalisation. A comprehensive strategy for 'Educational Excellence and Resilience Through Digitalisation' is outlined by drawing on successful international models from Estonia, India, and beyond, as well as the best of existing UK policies, to unify infrastructure, inspection, curriculum design, resources, technologies and training policies. To facilitate further discussion and analysis, the paper presents a set of fourteen actionable recommendations designed to modernise the UK education system through the effective and coherent provision of digital education capable of addressing persistent issues such as educational inequality, absenteeism, and mental health challenges and providing high-quality, resilient education for future generations.
Farmers Feeding Utah: Increasing Healthy Food Access and Supporting Local Agriculture
Creators: name: LeBlanc, Heidi
name: Coombs, Casey
Publisher: name: Utah State University
Year: 2021

description: The need for food assistance increased by 300% among Utah families as a result of the COVID-19 pandemic. Farmers and ranchers were also adversely impacted by market losses and processing shortages. In response, Farmers Feeding Utah was developed to facilitate access to fresh agricultural produce for families in need.
Supplemental Tables and Figures from Prolonged coccidioidomycosis transmission seasons in a warming California: a Markov state transition model of shifting disease dynamics
Creators: name: Camponuri, Simon K.
name: Head, Jennifer R.
name: Collender, Philip A.
name: Weaver, Amanda K.
name: Heaney, Alexandra K.
name: Colvin, Kate A.
name: Bhattachan, Abinash
name: Sondermeyer-Cooksey, Gail
name: Vugia, Duc J.
name: Jain, Seema
name: Remais, Justin Victor
Publisher: name: The Royal Society
Year: 2025
Subjects: classificationCode: 310299
subject: Bioinformatics and computational biology not elsewhere classified

description: VF_SeasonalTiming_RSInterface_Supplement.pdf
USU Extension’s Focus on Stress and Mental Health in Rural Agriculture
Creators: name: Howard, Tasha
name: Wray, Paige
name: Hadfield, Jacob
name: Dallin, Joshua
name: Ward, Callahan K.
Publisher: name: Utah State University
Year: 2021

description: Many agriculture producers are seeking help to combat stress, mental illness, and suicide. Although some resources exist, there is a gap in resources specific to mental health in rural farm and ranch life. In response, Utah State University (USU) Extension developed a mental health education course to address stressors within agriculture.
A Hybrid Peer Support Training Model for Mental Health and Substance Use Disorder Treatment
Creators: name: Voss, Maren Wright
name: Campbell, Amy
name: Van Komen, Amelia
Publisher: name: Utah State University
Year: 2021

description: Utah State University (USU) Extension created a hybrid educational program to address barriers to participation of the Certified Peer Support Specialist (CPSS) trainings before and during COVID 19. This article provides an overview of the CPSS pilot program and discusses early program outcomes.
A two-dimensional soliton system in the Maxwell-Chern-Simons gauge model
Creators: name: Loginov, A. Yu.
name: Gauzshtein, V. V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The (2 + 1)-dimensional Maxwell-Chern-Simons gauge model consisting of two complex scalar fields interacting through a common Abelian gauge field is considered. It is shown that the model has a solution that describes a soliton system consisting of vortex and Q-ball constituents. This two-dimensional soliton system possesses a quantized magnetic flux and a quantized electric charge. Moreover, the soliton system has a nonzero angular momentum. Properties of this vortex-Q-ball system are investigated by analytical and numerical methods. It is found that the system combines properties of a vortex and a Q-ball.
description: 8 pages with 6 figures. arXiv admin note: text overlap with arXiv:1901.00993
The Rural Online Initiative: Short-term Outcomes of USU Extension Master Remote Work Leader Course
Creators: name: Ali, Amanda D
name: Hill, Paul
Publisher: name: Utah State University
Year: 2021

description: Many people migrate out of rural communities in Utah in search of job opportunities. Meanwhile, businesses in urban areas struggle to find workers. The Master Remote Work Leader (MRWL) certificate course was developed to provide specialized training for Utah’s organizational leaders in managing hybrid-remote and fully distributed employees.
Electroweak Phase Transition with a Double Well Done Doubly Well
Creators: name: Agrawal, Prateek
name: Blasi, Simone
name: Mariotti, Alberto
name: Nee, Michael
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: electroweak interaction: critical phenomena
temperature: high
bubble: size
domain wall
gravitational radiation
monopole
string
benchmark
tunneling

description: We revisit the electroweak phase transition in the scalar singlet extension of the standard model with a $\mathbb{Z}_2$ symmetry. In significant parts of the parameter space the phase transition occurs in two steps - including canonical benchmarks used in experimental projections for gravitational waves. Domain walls produced in the first step of the transition seed the final step to the electroweak vacuum, an effect which is typically neglected but leads to an exponentially enhanced tunnelling rate. We improve previous results obtained for the seeded transition, which made use of the thin-wall or high temperature approximations, by using the mountain pass algorithm that was recently proposed as a useful tool for seeded processes. We then determine the predictions of the seeded transition for the latent heat, bubble size and characteristic time scale of the transition. Differences compared to homogeneous transitions are most pronounced when there are relatively few domain walls per hubble patch, potentially leading to an enhanced gravitational wave signal. We also provide a derivation of the percolation criteria for a generic seeded transition, which applies to the domain wall seeds we consider as well as to strings and monopoles.
A Substance Misuse Prevention Program to Youth in Rural Utah
Creators: name: MacArthur, Stacey
name: Keady, Timothy
name: Wray, Paige
name: Jensen, Christine
name: Sorenson, Mary
name: Warnick, Claire
name: Narine, Lendel
Publisher: name: Utah State University
Year: 2021

description: A major issue in rural counties is substance misuse. USU Extension implemented a substance prevention program with youth in rural counties. The program included family- and school-based education activities to promote youth resilience and development. Evaluation results showed youth exhibited strong anti-drug attitudes after the program.
EvoMaster: Evolutionary Multi-context Automated System Test Generation
Creators: name: Arcuri, Andrea
Publisher: name: arXiv
Year: 2019
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This paper presents EvoMaster, an open-source tool that is able to automatically generate system level test cases using evolutionary algorithms. Currently, EvoMaster targets RESTful web services running on JVM technology, and has been used to find several faults in existing open-source projects. We discuss some of the architectural decisions made for its implementation, and future work.
description: arXiv admin note: text overlap with arXiv:1901.01538
Isomorphism testing of groups of cube-free order
Creators: name: Dietrich, Heiko
name: Wilson, James B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: A group $G$ has cube-free order if no prime to the third power divides $|G|$. We describe an algorithm that given two cube-free groups $G$ and $H$ of known order, decides whether $G\cong H$, and, if so, constructs an isomorphism $G\to H$. If the groups are input as permutation groups, then our algorithm runs in time polynomial in the input size, improving on the previous super-polynomial bound. An implementation of our algorithm is provided for the computer algebra system {\sf GAP}.
description: arXiv admin note: substantial text overlap with arXiv:1806.08872
title: Geoblogging-δημιουργία ενός σημασιολογικού παγκόσμιου χάρτη
titleType: AlternativeTitle
title: Geoblogging-Construction of a world semantic map
Creators: name: Lontou, Charikleia D.
Publisher: name: National Technological University of Athens
Year: 2010
Subjects: Διαδρομές
Ιστολόγια
Ταξίδια
Κοινωνική δικτύωση
Χάρτες
Blogging
Routes
Travelling
Social networking
Maps

description: 84 σ.
description: Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία. Διατμηματικό Πρόγραμμα Μεταπτυχιακών Σπουδών (Δ.Π.Μ.Σ.) "Γεωπληροφορική"
description: Ο σκοπός της παρούσας μεταπτυχιακής εργασίας είναι η ανάπτυξη και υλοποίηση μιας διαδικτυακής εφαρμογής με σκοπό την συλλογή και οργάνωση υλικού όπως φωτογραφίες, βίντεο και κείμενα σε σχέση με τον χώρο και το χρόνο, δημιουργώντας ένα είδος προσωπικών ταξιδιωτικών οδηγών. Θα μπορούσε να θεωρηθεί ως ένα λεύκωμα, για την οργάνωση ταξιδιωτικών αναμνήσεων και την δημιουργία διαδρομών, πλούσιων σε περιγραφές. Αποτελεί μια διαδικτυακή εφαρμογή που υποστηρίζει τη δημιουργία ταξιδιωτικών blogs με χρήση χαρτών αξιοποιώντας τα δεδομένα που συλλέχθηκαν (φωτογραφίες, βίντεο, κείμενο) κατά τη διάρκεια του ταξιδιού και στοχεύει στην ανταλλαγή γεωγραφικών γνώσεων και ταξιδιωτικών εμπειριών μεταξύ των χρηστών του. Τέλος αποσκοπεί στην συγκέντρωση πληροφοριών ικανών να περιγράψουν κάθε σημείο του πλανήτη με εικόνα βίντεο ήχο και κείμενο που έχουν προστεθεί από τους ίδιους τους χρήστες του.
description: The purpose of this thesis is to develop and implement a web application which collects and organize materials such as photos, videos and texts in relation to space and time, creating a sort of personal tour guides. It can be seen as a scrapbook for organizing travel mementos and creating rich route descriptions. It is a Web application that supports the creation of map-based travel blogs based on the collected data (photos, audio, video, text) during the trip, aimed at sharing geographic knowledge and travel experience between users. Finally, it aimed at collecting information that might describe any point on the planet with sound, videos, images and text added by its users.
On representation theory of partition algebras for complex reflection groups
Creators: name: Mishra, Ashish
name: Srivastava, Shraddha
Publisher: name: arXiv
Year: 2018
Subjects: subject: Representation Theory (math.RT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: This paper defines the partition algebra for complex reflection group $G(r,p,n)$ acting on $k$-fold tensor product $(\mathbb{C}^n)^{\otimes k}$, where $\mathbb{C}^n$ is the reflection representation of $G(r,p,n)$. A basis of the centralizer algebra of this action of $G(r,p,n)$ was given by Tanabe and for $p =1$, the corresponding partition algebra was studied by Orellana. We also establish a subalgebra as partition algebra of a subgroup of $G(r,p,n)$ acting on $(\mathbb{C}^n)^{\otimes k}$. We call these algebras as Tanabe algebras. The aim of this paper is to study representation theory of Tanabe algebras: parametrization of their irreducible modules, and construction of Bratteli diagram for the tower of Tanabe algebras. We conclude the paper by giving Jucys-Murphy elements of Tanabe algebras and their actions on the Gelfand-Tsetlin basis, determined by this multiplicity free tower, of irreducible modules.
description: 51 pages
Ultra-high frequency primordial gravitational waves beyond the kHz: the case of cosmic strings
Creators: name: Servant, Geraldine
name: Simakachorn, Peera
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: string, network
nucleosynthesis, big bang
gravitational radiation, primordial
axion, string
potential, scalar
gravitational radiation, background
string, decay
symmetry breaking, scale
GeV
cosmic string
slope
grand unified theory
LIGO
cosmic background radiation
kink
Einstein Telescope
suppression
LISA
structure

description: We investigate gravitational-wave backgrounds (GWBs) of primordial origin that would manifest only at ultra-high frequencies, from kilohertz to 100 gigahertz, and leave no signal at either LIGO, Einstein Telescope, Cosmic Explorer, LISA, or pulsar-timing arrays. We focus on GWBs produced by cosmic strings and make predictions for the GW spectra scanning over high-energy scale (beyond $10^{10}$ GeV) particle physics parameters. Signals from local string networks can easily be as large as the Big Bang nucleosynthesis/cosmic microwave background bounds, with a characteristic strain as high as $10^{-26}$ in the 10 kHz band, offering prospects to probe grand unification physics in the $10^{14}-10^{17}$ GeV energy range. In comparison, GWB from axionic strings is suppressed (with maximal characteristic strain $\sim 10^{-31}$) due to the early matter era induced by the associated heavy axions. We estimate the needed reach of hypothetical futuristic GW detectors to probe such GW and, therefore, the corresponding high-energy physics processes. Beyond the information of the symmetry-breaking scale, the high-frequency spectrum encodes the microscopic structure of the strings through the position of the UV cutoffs associated with cusps and/or kinks, as well as potential information about friction forces on the string. The IR slope, on the other hand, reflects the physics responsible for the decay of the string network. We discuss possible strategies for reconstructing the scalar potential, particularly the scalar self-coupling, from the measurement of the UV cutoff of the GW spectrum.
Solar System Tests of Higher-Dimensional Gravity
Creators: name: Liu, Hongya
name: Overduin, James
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The classical tests of general relativity - light deflection, time delay and perihelion shift - are applied, along with the geodetic precession test, to the five-dimensional extension of the theory known as Kaluza-Klein gravity, using an analogue of the four-dimensional Schwarzschild metric. The perihelion advance and geodetic precession calculations are generalized for the first time to situations in which the components of momentum and spin along the extra coordinate do not vanish. Existing data on light- bending around the Sun using long- baseline radio interferometry, ranging to Mars using the Viking lander, and the perihelion precession of Mercury all constrain a small parameter b associated with the extra part of the metric to be less than |b| < 0.07 in the solar system. An order-of-magnitude increase in sensitivity is possible from perihelion precession, if better limits on solar oblateness become available. Measurement of geodetic precession by the Gravity Probe B satellite will improve this significantly, probing values of b with an accuracy of one part in 10^4 or more.
description: 23 pages, no figs. LaTeX, uses aasms4.sty. ApJ, in press
Exchange-correlation potential for Current Density Functional Theory of frequency dependent linear response
Creators: name: Conti, S.
name: Nifosi', R.
name: Tosi, M P
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The dynamical, long-wavelength longitudinal and transverse exchange-correlation potentials for a homogeneous electron gas are evaluated in a microscopic model based on an approximate decoupling of the equation of motion for the current-current response function. The transverse spectrum turns out to be very similar to the longitudinal one. We obtain evidence for a strong spectral structure near twice the plasma frequency due to a two-plasmon threshold for two-pair excitations, which may be observable in inelastic scattering experiments. Our results give the entire input needed to implement the Time-Dependent Current Density Functional Theory scheme recently developed by G. Vignale and W. Kohn [Phys. Rev. Lett. 77, 2037 (1996)] and are fitted to analytic functions to facilitate such applications.
description: 6 pages, 3 figures
Charge Density Wave-Assisted Tunneling Between Hall Edge States
Creators: name: Moriconi, L.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the intra-planar tunneling between quantum Hall samples separated by a quasi one-dimensional barrier, induced through the interaction of edge degrees of freedom with the charge density waves of a Hall crystal defined in a parallel layer. A field theory formulation is set up in terms of bosonic (2+1)-dimensional excitations coupled to (1+1)-dimensional fermions. Parity symmetry is broken at the quantum level by the confinement of soliton-antisoliton pairs near the tunneling region. The usual Peierls argument allows to estimate the critical temperature $T_c$, so that for $T > T_c$ mass corrections due to longitudinal density fluctuations disappear from the edge spectrum. We compute the gap dependence upon the random global phase of the pinned charge density wave, as well as the effects of a voltage bias applied across the tunneling junction.
description: Additional references + 1 figure + more detailed discussions. To be published in Phys. Rev. B
Lining up a Positive Semi-Definite Six-Point Bootstrap
Creators: name: Antunes, António
name: Harris, Sebastian
name: Kaviraj, Apratim
name: Schomerus, Volker
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: n-point function, 6
symmetry, crossing
field theory, conformal
bootstrap
correlation function
programming

description: In this work we initiate a positive semi-definite numerical bootstrap program for multi-point correlators. Considering six-point functions of operators on a line we reformulate the crossing symmetry equation for a pair of comb-channel expansions as a semi-definite programming problem. We provide two alternative formulations of this problem. At least one of them turns out to be amenable to numerical implementation. Through a combination of analytical and numerical techniques we obtain rigorous bounds on CFT data in the triple-twist channel for several examples.
Giant number fluctuations in dry active polar fluids: A shocking analogy with lightning rods
Creators: name: Toner, John
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The hydrodynamic equations of dry active polar fluids (i.e., moving flocks without momentum conservation) are shown to imply giant number fluctuations. Specifically, the rms fluctuations $\sqrt {}$ of the number $N$ of active particles in a region containing a mean number of active particles $$ scales according to the law $\sqrt {} = K'^{ϕ(d)}$ with $ϕ(d)=\frac{7}{10}+\frac{1}{5d}$ in $d\le4$ spatial dimensions. This is much larger the "law of large numbers" scaling $\sqrt {} = K\sqrt{}$ found in most equilibrium and non-equilibrium systems. In further contrast to most other systems, the coefficient $K'$ also depends singularly on the shape of the box in which one counts the particles, vanishing in the limit of very thin boxes. These fluctuations arise {\it not} from large density fluctuations - indeed, the density fluctuations in \dry s are not in general particularly large - but from long ranged spatial correlations between those fluctuations. These are shown to be closely related in two spatial dimensions to the electrostatic potential near a sharp upward pointing conducting wedge of opening angle ${3π\over8}=67.5^\circ$, and in three dimensions to the electrostatic potential near a sharp upward pointing charged cone of opening angle $37.16^\circ$. This very precise prediction can be stringently tested by alternative box counting experiments that directly measure this density-density correlation function.
description: 23 pages; Invited contribution to Journal of Chemical Physics Special Issue on Active Matter