cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Wie viel Energie steckt in der Temperatur?
title: Bestimmung der Boltzmann-Konstante
titleType: Subtitle
Creators: name: Fischer, Joachim
name: Fellmuth, Bernd
name: Gaiser, Christof
Publisher: name: Physikalisch-Technische Bundesanstalt (PTB)
Year: 2016
Subjects: Internationales Einheitensystem (SI)
Temperatur
Basiseinheit Kelvin
Thermometrie
Dielektrizitätskonstanten-Gasthermometrie
Boltzmann-Konstante

description: PTB-Mitteilungen. Band 126 (2016), Heft 2. ISSN 0030-834X
Orbital evolution of mass-transferring eccentric binary systems. I. Phase-dependent evolution
Creators: name: Dosopoulou, Fani
name: Kalogera, Vicky
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Observations reveal that mass-transferring binary systems may have non-zero orbital eccentricities. The time-evolution of the orbital semi-major axis and eccentricity of mass-transferring eccentric binary systems is an important part of binary evolution theory and has been widely studied. However, various different approaches and assumptions on the subject have made the literature difficult to comprehend and comparisons between different orbital element time-evolution equations not easy to make. Consequently, no self-consistent treatment of this phase has been ever included in binary population synthesis codes. In this paper, we present a general formalism to derive the time-evolution equations of the binary orbital elements, treating mass-loss and mass-transfer as perturbations to the general two-body problem. We present the self-consistent form of the perturbing acceleration and the phase-dependent time-evolution equations for the orbital elements under different mass-loss/transfer processes. First, we study the cases of isotropic and anisotropic wind mass-loss. Then, we proceed with the non-isotropic ejection and accretion in conservative as well as non-conservative manner for both point masses and extended bodies. Comparison of the derived equations with similar work in the literature is made and explanation of the existing discrepancies is provided.
description: 14 pages, 4 figures. Accepted for publication in ApJ
title: Home Energy Management System (HEMS) - Development and Trial -HEMS Field Trials: Request for proposals (WP1 )
Creators: name: ETI
Publisher: name: ETI
Year: 2014
Subjects: subject: Smart Systems and Heat
subject: ENERGY EFFICIENCY (Residential and commercial)

description: ETI’s research highlights that a Home Energy Management System (HEMS) should be a key component of a future smart energy system, but given the fact that most consumers do not willingly engage with their energy system any product solutions need to be consumer focused if they are to be effective.Therefore this project to design an advanced HEMS is a core component of the ETI’s Smart Systems and Heat programme (now delivered by the Energy Systems Catapult) to make energy and heat consumption more consumer focused.

.Therefore this project to design an advanced HEMS is a core component of the ETI’s Smart Systems and Heat programme (now delivered by the Energy Systems Catapult) to make energy and heat consumption more consumer focused. As part of the two year project, the system that is developed will be installed and tested in homes during the winter of 2016/17and the results analysed to give an insight into consumer patterns, their electricity and gas use and the building and heating system performance.

This will provide a significant dataset of consumer behaviours, energy use and building characterisation to develop further future products. Providing a secure and scalable platform will also help to integrate more appliances in the home and allow valuable services and applications to be developed, deployed and managed

This is the call for proposals for carrying out field trials of the prototype HEMS system developed as part of this project.There will be three work packages:WP1: Development of Field Trial ApproachWP2: Execution of Field TrialWP3: De-Commissioning and Closure of the Field Trial
Gigantic directional asymmetry of luminescence in multiferroic CuB2O4
Creators: name: Toyoda, S.
name: Abe, N.
name: Arima, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report direction dependent luminescence (DDL), i.e., the asymmetry in the luminescence intensity between the opposite directions of the emission, in multiferroic CuB2O4. Although it is well known that the optical constants can change with the reversal of the propagation direction of light in multiferroic materials, the largest asymmetry in the luminescence intensity was 0.5 % so far. We have performed a measurement of photoluminescence with a He-Ne laser irradiation (633 nm). The luminescence intensity changes by about 70 % with the reversal of the magnetic field due to the interference between the electric dipole and magnetic dipole transitions. We also demonstrate the imaging of the canted antiferromagnetic domain structure of (Cu,Ni)B2O4 by using the large DDL.
Identify barriers to knowledge management for four types of business processes
Creators: name: Ranjbarfard, Mina
name: Aghdasi, Mohammad
name: Albadvi, Amir
name: Hasanzadeh, Mohammad
Publisher: name: figshare
Year: 2022
Subjects: subject: 80609 Information Systems Management
subject: FOS: Computer and information sciences
subject: Information Systems
subject: 80608 Information Systems Development Methodologies

description: This article provides an appropriate classification to examine the differences in knowledge management in each of the business processes. In this classification, business processes are divided into four categories of labor flow, information-oriented, decision-oriented, and participatory processes. Then the features and the most important barriers to their knowledge management are discussed. The study of literature led to the formation of possible propositions about the most important obstacles to knowledge management in each of the four types of processes. Possible propositions are investigated through two case studies in a labor flow process and a decision-making process and hypotheses are presented. The findings of this study will help managers to have a process perspective in the implementation of knowledge management innovations, and and considering the type of selected processes for implementing knowledge management, they will issue the most important obstacles. The results of this study, the study and improvement of possible propositions related to information-oriented and participatory processes, as well as testing the hypotheses about the most important barriers to knowledge management in the four types of business processes, is the starting point for future research.
A high-order spectral deferred correction strategy for low Mach number flow with complex chemistry
Creators: name: Pazner, Will
name: Nonaka, Andrew
name: Bell, John
name: Day, Marcus
name: Minion, Michael
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We present a fourth-order finite-volume algorithm in space and time for low Mach number reacting flow with detailed kinetics and transport. Our temporal integration scheme is based on a multi-implicit spectral deferred correction (MISDC) strategy that iteratively couples advection, diffusion, and reactions evolving subject to a constraint. Our new approach overcomes a stability limitation of our previous second-order method encountered when trying to incorporate higher-order polynomial representations of the solution in time to increase accuracy. We have developed a new iterative scheme that naturally fits within our MISDC framework that allows us to simultaneously conserve mass and energy while satisfying on the equation of state. We analyse the conditions for which the iterative schemes are guaranteed to converge to the fixed point solution. We present numerical examples illustrating the performance of the new method on premixed hydrogen, methane, and dimethyl ether flames.
description: 27 pages, 5 figures
Awareness and Utilization of e-Learning Resources by Trainee Counsellors of Counselling Education in Calabar, Nigeria.pdf
Creators: name: Abuo, Cyril  Bissong
Publisher: name: figshare
Year: 2023
Subjects: Other education not elsewhere classified

description: In Nigeria, electronic-learning (e-learning) resources have emerged as a modern tool for enhancing the quality of delivery and acquisition of education content. Yet, hardly has there been any meaningful research report on the application of this innovative and invaluable tool to counselling education service delivery efforts. This study, „awareness and utilization of e-learning resources by trainee Counsellors in counselling education in Calabar, Nigeria‟ was designed to fill this literature gap. A structured questionnaire with reliability index of 0.83 titled “Awareness and Utilization of E?learning Questionnaire (AUEQ)” was used to collect data from a sample of 300 students and analyzed using t-test statistics. The results of the study indicate that while the awareness of e-learning resources by trainee Counsellors was generally high, their rating in terms of availability, currency, adequacy and quality of these resources within their schools was rather very low. The results also indicated that the extent of utilization of e-learning was also very insignificant. Furthermore, the outcomes of the study show inter?class, inter-school and inter-gender differences with regards to both awareness of availability and utilization of e-learning resources. Based on the findings, it was recommended that Universities and other higher education settings should be equipped with current, functional and adequate e-learning resources for enhanced service delivery. It was also recommended that both counsellor educators and trainees should be systematically trained in appropriate skills required for the use of e-learning facilities. It was further recommended that assurance of constant and adequate power supply should be improved upon to enhance the use of e-learning in our Universities
Schmid, Hans (Hrsg.), Angebot der Volkskirchen und Nachfrage des Kirchenvolks
Creators: name: Schwark, Christian
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1823352200
description: Jahrbuch für evangelikale Theologie, V. 24 (2010): Jahrbuch für evangelikale Theologie, Band 24
RRR-Net: Reusing, Reducing, and Recycling a Deep Backbone Network
Creators: name: Sun, Haozhe
name: Guyon, Isabelle
name: Mohr, Felix
name: Tabia, Hedi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: It has become mainstream in computer vision and other machine learning domains to reuse backbone networks pre-trained on large datasets as preprocessors. Typically, the last layer is replaced by a shallow learning machine of sorts; the newly-added classification head and (optionally) deeper layers are fine-tuned on a new task. Due to its strong performance and simplicity, a common pre-trained backbone network is ResNet152.However, ResNet152 is relatively large and induces inference latency. In many cases, a compact and efficient backbone with similar performance would be preferable over a larger, slower one. This paper investigates techniques to reuse a pre-trained backbone with the objective of creating a smaller and faster model. Starting from a large ResNet152 backbone pre-trained on ImageNet, we first reduce it from 51 blocks to 5 blocks, reducing its number of parameters and FLOPs by more than 6 times, without significant performance degradation. Then, we split the model after 3 blocks into several branches, while preserving the same number of parameters and FLOPs, to create an ensemble of sub-networks to improve performance. Our experiments on a large benchmark of $40$ image classification datasets from various domains suggest that our techniques match the performance (if not better) of ``classical backbone fine-tuning'' while achieving a smaller model size and faster inference speed.
Staged Models for Interdisciplinary Research
Creators: name: Lafuerza, Luis F.
name: Dyson, Louise
name: Edmonds, Bruce
name: McKane, Alan J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Modellers of complex biological or social systems are often faced with an invidious choice: to use simple models with few mechanisms that can be fully analysed, or to construct complicated models that include all the features which are thought relevant. The former ensures rigour, the latter relevance. We discuss a method that combines these two approaches, beginning with a complex model and then modelling the complicated model with simpler models. The resulting "chain" of models ensures some rigour and relevance. We illustrate this process on a complex model of voting intentions, constructing a reduced model which agrees well with the predictions of the full model. Experiments with variations of the simpler model yield additional insights which are hidden by the complexity of the full model. This approach facilitated collaboration between social scientists and physicists -- the complex model was specified based on the social science literature, and the simpler model constrained to agree (in core aspects) with the complicated model.
description: 19 pages, 12 figures. Supporting information is in an appendix
Dialog der Kulturen und Religionen. 19. Mai 2006 Hofburg - Wien
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Tübingen
Year: 2006
Subjects: subject: Österreich , Konferenz , Religion , Kultur , Dialog
subject: 360

description: Der Dialog der Kulturen und Religionen steht im Wechselspiel mit der Inneren Sicherheit eines jeden Staates - nicht nur in Österreich, innerhalb der EU, sondern in der gesamten Welt. Die Förderung dieses Dialoges unterstützt daher maßgeblich die Innere Sicherheit. Dazu ist einerseits die Einbindung der Staaten und der Internationalen Gemeinschaften und Organisationen, andererseits die Einbindung der Zivilgesellschaft sowie die Achtung der Menschenrechte notwendig. Die österreichische EU Ratspräsidentschaft setzte einen klaren Schwerpunkt im Bereich des Dialogs. Im Lichte dieser wichtigen Thematik veranstaltete Frau Bundesministerin Liese Prokop unter österreichischer EU Ratspräsidentschaft am 19. Mai in Wien eine Veranstaltung zum Themenbereich "Dialog der Kulturen und Religionen" statt. Ziel der Konferenz war es, die Modelle des Dialogs und der Integration auf allen Ebenen zu analysieren und miteinander zu vergleichen. So wurde ein Beitrag zur Umsetzung der Strategie der Europäischen Union gegen Radikalisierung und Rekrutierung für den Terrorismus geleistet. An dieser Konferenz nahmen hochrangige Vertreter aus den Bereichen Religion, Politik, Wissenschaft und Kultur teil.
title: WP1 Consumer Insights - Consumer Insights Toolkit
Creators: name: Energy Systems Catapult
Publisher: name: ETI
Year: 2017
Subjects: subject: Smart Systems and Heat
subject: ENERGY EFFICIENCY (Residential and commercial)
subject: OTHER CROSS-CUTTING TECHNOLOGIES or RESEARCH (Other Supporting Data)

description: This project is part of the “Smart Systems and Heat” Phase 1 Business Model Development Project. It will provide insights into consumer behaviour relating to heat decisions.The project will be made up of four small pieces of consultancy work looking at specific issues:Consumer Response & Behavious AnalysisLiterature Review Personality and Risky Heat DecisionsHousehold Heating Design AidsSegmentation AnalysisThis report is a toolkit of visual aids designed to help inform the design of products services and polices so they can successfully decarbonise heating in the UK. Among other things the toolkit includes household, building and heating systems icons and physical flash cards that enables engineers, policy and decision makers to think through the consumers’ perspective when designing a heating system or heating policy.
Orbital evolution of mass-transferring eccentric binary systems. II. Secular Evolution
Creators: name: Dosopoulou, Fani
name: Kalogera, Vicky
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Finite eccentricities in mass-transferring eccentric binary systems can be explained by taking into account mass-loss and mass-transfer processes that often occur in these systems. These processes can be treated as perturbations to the general two-body problem. The time-evolution equations for the semi-major axis and the eccentricity derived from perturbative methods are in general phase-dependent. The osculating semi-major axis and eccentricity change over the orbital timescale and they are not easy to implement in binary evolution codes like MESA. However, the secular orbital element evolution equations can be simplified averaging over the rapidly varying true anomalies. In this paper, we derive the secular time-evolution equations for the semi-major axis and the eccentricity for various mass-loss/transfer processes using either the adiabatic approximation or the assumption of delta-function mass-loss/transfer at periastron. We begin with the cases of isotropic and anisotropic wind mass-loss. We continue with conservative and non-conservative non-isotropic mass ejection/accretion (including RLOF) for both point-masses and extended bodies. We conclude with the case of phase-dependent mass accretion. Comparison of the derived equations with similar work in the literature is included and explanation of the existing discrepancies is provided.
description: 12 pages, 1 figure. Accepted for publication in ApJ
Study of the situation of barriers to knowledge management in different units of gas companies
Creators: name: Ranjbarfard, Mina
name: Aghdasi, Mohammad
name: hasanzadeh, Mohammad
name: Albadvi, Amir
Publisher: name: figshare
Year: 2022
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 80608 Information Systems Development Methodologies
subject: 80609 Information Systems Management

description: Objective: The aim of this study is to identify barriers to knowledge management in the country's gas industry and to investigate the differences in barriers in different units of relevant companies. Method: This descriptive, survey and applied research is based on the literature on knowledge management barriers, evaluates and prioritizes knowledge management barriers in the subsidiaries of the National Iranian Gas Company. The study sample was selected by classified random method. Data collection tool was a 40-item questionnaire. Results: Out of 39 barriers studied, only 8 barriers had significant differences in the average ratio, which were identified as important barriers in gas companies and their priority was determined. The result of Friedman test showed that there is no difference between the mean of 8 different barriers to knowledge management. Also, the result of Kruskal-Wallis test, which was performed for each of the 8 barriers, showed that the situation of barriers to knowledge management in different organizational units of gas companies is the same.
title: WP1 Consumer Insights - A Segmentation Analysis of Households’ Reasons for Changing their Heating Systems
Creators: name: Beckhelling, J.
Publisher: name: ETI
Year: 2017
Subjects: subject: Smart Systems and Heat
subject: ENERGY EFFICIENCY (Residential and commercial)
subject: OTHER CROSS-CUTTING TECHNOLOGIES or RESEARCH (Environmental, social and economic impacts)
subject: OTHER CROSS-CUTTING TECHNOLOGIES or RESEARCH (Other Supporting Data)

description: This project is part of the “Smart Systems and Heat” Phase 1 Business Model Development Project. It will provide insights into consumer behaviour relating to heat decisions.The project will be made up of four small pieces of consultancy work looking at specific issues:Consumer Response & Behavious AnalysisLiterature Review Personality and Risky Heat DecisionsHousehold Heating Design AidsSegmentation AnalysisThis report contains the analysis carried out by Loughborough University on the data from the Consumer Response & Behaviour Project (CRaB). This analysis evaluated whether a segmentation could be developed to predict the reasons why households changed their heating systems.

Three different analysis attempts were made; however, the best of the models only correctly predicted 55% of the reasons for changing the boiler.The method used and results are set out in this report

The categories most frequently predicted by each analysis are generally the reasons chosen by the most householders. This suggests that the independent variables have little predictive power to predict thereasons for changing the boiler. It seems that, based on this sample, householders change their boilers either when they have broken down or when they are about to break down,regardless of the demographic characteristics of the households, or the technical features of their homes.The best predictors of when the boiler is changed could be variables such as whether the householder thinks is it going to break down soon, whetherit will last another winter, how badly it will affect them if the boiler breaks down before it is changed
Tuning ultrasmall theranostic nanoparticles for MRI contrast and radiation dose amplification
Creators: name: Brown, Needa
name: Rocchi, Paul
name: Carmès, Léna
name: Guthier, Romy
name: Iyer, Meghna
name: Seban, Léa
name: Morris, Toby
name: Bennett, Stephanie
name: Lavelle, Michael
name: Penailillo, Johany
name: Carrasco, Ruben
name: Williams, Chris
name: Huynh, Elizabeth
name: Han, Zhaohui
name: Kaza, Evangelia
name: Doussineau, Tristan
name: Toprani, Sneh M
name: Qin, Xingping
name: Nagel, Zachary D
name: Sarosiek, Kristopher A
name: Hagège, Agnès
name: Dufort, Sandrine
name: Bort, Guillaume
name: Lux, François
name: Tillement, Olivier
name: Berbeco, Ross
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Background: The introduction of magnetic resonance (MR)-guided radiation treatment planning has opened a new space for theranostic nanoparticles to reduce acute toxicity while improving local control. In this work, second-generation AGuIX nanoparticles (AGuIX-Bi) are synthesized and validated. AGuIX-Bi are shown to maintain MR positive contrast while further amplifying the radiation dose by the replacement of some Gd$^{3+}$ cations with higher Z Bi$^{3+}$. These next-generation nanoparticles are based on the AGuIX platform, which is currently being evaluated in multiple Phase II clinical trials in combination with radiotherapy. Methods: In this clinically scalable methodology, AGuIX is used as an initial chelation platform to exchange Gd$^{3+}$ for Bi$^{3+}$. AGuIX-Bi nanoparticles are synthesized with three ratios of Gd/Bi, each maintaining MR contrast while further amplifying radiation dose relative to Bi$^{3+}$. Safety, efficacy, and theranostic potential of the nanoparticles were evaluated in vitro and in vivo in a human non-small cell lung cancer model. Results: We demonstrated that increasing Bi$^{3+}$ in the nanoparticles is associated with more DNA damage and improves in vivo efficacy with a statistically significant delay in tumor growth and 33% complete regression for the largest Bi/Gd ratio tested. The addition of Bi$^{3+}$ by our synthetic method leads to nanoparticles that present slightly altered pharmacokinetics and lengthening of the period of high tumor accumulation with no observed evidence of toxicity. Conclusions: We confirmed the safety and enhanced efficacy of AGuIX-Bi with radiation therapy at the selected ratio of 30Gd/70Bi. These results provide crucial evidence towards patient translation.
Topological Rigidity for FJ by the Infinite Cyclic Group
Creators: name: Wang, Kun
Publisher: name: arXiv
Year: 2015
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: We call a group FJ if it satisfies the $K$- and $L$-theoretic Farrell-Jones conjecture with coefficients in $\mathbb Z$. We show that if $G$ is FJ, then the simple Borel conjecture (in dimensions $\ge 5$) holds for every group of the form $G\rtimes\mathbb Z$. If in addition $Wh(G\times \mathbb Z)=0$, which is true for all known torsion free FJ groups, then the bordism Borel conjecture (in dimensions $n\ge 5$) holds for $G\rtimes\mathbb Z$. One of the key ingredients in proving these rigidity results is another main result, which says that if a torsion free group $G$ satisfies the $L$-theoretic Farrell-Jones conjecture with coefficients in $\mathbb Z$, then any semi-direct product $G\rtimes\mathbb Z$ also satisfies the $L$-theoretic Farrell-Jones conjecture with coefficients in $\mathbb Z$. Our result is indeed more general and implies the $L$-theoretic Farrell-Jones conjecture with coefficients in additive categories is closed under extensions of torsion free groups. This enables us to extend the class of groups which satisfy the Novikov conjecture.
description: 26 pages. Comments are welcome
Fluid-structure model for disks vibrating at ultra-high frequency in a compressible viscous fluid
Creators: name: Neshasteh, Hamidreza
name: Ravaro, Marco
name: Favero, Ivan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Radial mechanical modes of miniature disk-shaped resonators are promising candidates for probing the ultra-high-frequency rheological properties of liquids. However, the lack of an analytical fluid-structure model hinders the inference of liquid properties from the experimental measurement of such radial vibrations. Here we develop analytical models for the case of a disk vibrating in a compressible viscous liquid. Closed-form expressions for the mechanical quality factor and resonant frequency shift upon immersion are obtained, which we compare to the results of numerical modeling for a few significant cases. At frequencies above 1 GHz, our model points out the significance of compressibility effects.
Spitzer observations of extragalactic H II regions - III. NGC 6822 and the hot star, H II region connection
Creators: name: Rubin, Robert H.
name: Simpson, Janet P.
name: Colgan, Sean W. J.
name: Dufour, Reginald J.
name: Kader, Justin
name: McNabb, Ian A.
name: Pauldrach, Adalbert W. A.
name: Weber, Johann A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using the short-high module of the Infrared Spectrograph on the Spitzer Space Telescope, we have measured the [S IV] 10.51, [Ne II] 12.81, [Ne III] 15.56, and [S III] 18.71-micron emission lines in nine H II regions in the dwarf irregular galaxy NGC 6822. These lines arise from the dominant ionization states of the elements neon (Ne$^{++}$, Ne$^+$) and sulphur (S$^{3+}$, S$^{++}$), thereby allowing an analysis of the neon to sulphur abundance ratio as well as the ionic abundance ratios Ne$^+$/Ne$^{++}$ and S$^{3+}$/S$^{++}$. By extending our studies of H II regions in M83 and M33 to the lower metallicity NGC 6822, we increase the reliability of the estimated Ne/S ratio. We find that the Ne/S ratio appears to be fairly universal, with not much variation about the ratio found for NGC 6822: the median (average) Ne/S ratio equals 11.6 (12.2$\pm$0.8). This value is in contrast to Asplund et al.'s currently best estimated value for the Sun: Ne/S = 6.5. In addition, we continue to test the predicted ionizing spectral energy distributions (SEDs) from various stellar atmosphere models by comparing model nebulae computed with these SEDs as inputs to our observational data, changing just the stellar atmosphere model abundances. Here we employ a new grid of SEDs computed with different metallicities: Solar, 0.4 Solar, and 0.1 Solar. As expected, these changes to the SED show similar trends to those seen upon changing just the nebular gas metallicities in our plasma simulations: lower metallicity results in higher ionization. This trend agrees with the observations.
description: 22 pages, 13 figures. To be published in MNRAS. reference added and typos fixed. arXiv admin note: text overlap with arXiv:0804.0828, which is paper II by Rubin et al. (2008)
On approximation of planar curves by circular arcs with length preservation
Creators: name: Kurnosenko, Alexey
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A04

description: The method for approximation of planar curve by circular arcs with length preservation, proposed by I.Kh. Sabitov and A.V. Slovesnov, is analyzed. We extend the applicability of the method, and consider some corollaries, not related to the approximation problem. Inequalities for the length of a convex spiral arc with prescribed two-point $G^1$ or $G^2$ Hermite data are derived. We propose a scheme of computer modelling to explore properties of planar curves. As an example, closeness of ovals is tested, leading to some conjectures about closeness conditions.
description: 17 pages, 10 figures
The barriers of knowledge generation, storage, distribution and application that impede learning in gas and petroleum companies
Creators: name: Ranjbarfard, Mina
name: Aghdasi, Mohammad
name: López-Sáez, Pedro
name: López, José Emilio  Navas
Publisher: name: figshare
Year: 2022
Subjects: subject: 80609 Information Systems Management
subject: FOS: Computer and information sciences
subject: 80608 Information Systems Development Methodologies
subject: Information Systems

description: Purpose – This paper aims to find and rank the barriers of the four knowledge management (KM) processes including generation, storage, distribution and application in the gas and petroleum sector. Design/methodology/approach – Reviewing the literature of KM and organizational learning, this paper extracted all of the barriers which impede KM processes. Then it designed a questionnaire for validating, ranking and categorizing barriers. Totally, 190 completed questionnaires were gathered from 26 gas and petroleum companies in Iran. Some statistical tests such as T, Friedman, Kruskal– Wallis and Mann– Whitney were used for analyzing data. Findings – Findings reviewed the current literature of KM barriers, validated and ranked the barriers of knowledge generation, storage, distribution and application separately. The importance of knowledge generation and knowledge application barriers were significantly different between gas and petroleum companies. Hence they were disjointedly ranked for gas and petroleum. Finally, KM barriers were ranked according to their contribution to KM processes and the average mean of their importance in KM processes. Practical implications – From the practical point of view, this paper suggests managers of gas and petroleum companies to emphasize solving high-priority barriers according to the KM process which they are focused on. Furthermore, the study provides a checklist that can be used as an assessment tool for evaluating KM processes considering barriers. Originality/value – This paper finds the importance of each barrier for each of the four KM processes and ranks the “critical barriers” according to their contribution to four KM processes in the gas and petroleum sector.
Counseling Services influence on Social Reformation among Youths in Universities of Calabar Metropolis of Cross River State, Nigeria.pdf
Creators: name: Abuo, Cyril  Bissong
Publisher: name: figshare
Year: 2023
Subjects: Educational counselling

description: This study examines the influence of counselling services and social reformation among youths in Unvsersity of Calabar metropolis Cross River State Nigeria,,,
Stress retardation versus stress relaxation in linear viscoelasticity
Creators: name: Christov, Ivan C.
name: Christov, C. I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present a preliminary examination of a new approach to a long-standing problem in non-Newtonian fluid mechanics. First, we summarize how a general implicit functional relation between stress and rate of strain of a continuum with memory is reduced to the well-known linear differential constitutive relations that account for "relaxation" and "retardation." Then, we show that relaxation and retardation are asymptotically equivalent for small Deborah numbers, whence causal pure relaxation models necessarily correspond to ill-posed pure retardation models. We suggest that this dichotomy could be a possible way to reconcile the discrepancy between the theory of and certain experiments on viscoelastic liquids that are conjectured to exhibit only stress retardation.
description: 5 pages, 1 figure, elsarticle format, v2 corrects some typograpgical errors, published in Mechanics Research Communications
Super-Resonant Intracavity Coherent Absorption
Creators: name: Malara, P.
name: Campanella, C. E.
name: Giorgini, A.
name: Avino, S.
name: De Natale, P.
name: Gagliardi, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The capability of optical resonators to extend the effective radiation-matter interaction length originates from a multipass effect, hence is intrinsically limited by the resonator quality factor. Here, we show that this constraint can be overcome by combining the concepts of resonant interaction and coherent perfect absorption. We demonstrate and investigate super-resonant coherent absorption in a coupled Fabry-Perot-ring cavity structure. At the FP resonant wavelengths, the described phenomenon gives rise to split modes with a nearly-transparent peak and a peak whose transmission is exceptionally sensitive to the intracavity loss. For small losses, the effective interaction pathlength of these modes is proportional respectively to the ratio and the product of the individual finesse coefficients of the two resonators. The results presented extend the conventional definition of resonant absorption and point to a way of circumventing the technological limitations of ultrahigh-quality resonators in spectroscopy and optical sensing schemes
Modeling helicity dissipation-rate equation
Creators: name: Yokoi, Nobumitsu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Transport equation of the dissipation rate of turbulent helicity is derived with the aid of a statistical analytical closure theory of inhomogeneous turbulence. It is shown that an assumption on the helicity scaling with an algebraic relationship between the helicity and its dissipation rate leads to the transport equation of the turbulent helicity dissipation rate without resorting to a heuristic modeling.
description: 6 pages, 0 figures, Progress in Turbulence VI
Frechet Differentiability in Besov Spaces in the Optimal Control of Parabolic Free Boundary Problems
Creators: name: Abdulla, Ugur G.
name: Goldfarb, Jonathan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K10, 35R30, 35R35, 35K20, 35Q93, 65M32, 65M21

description: We consider the inverse Stefan type free boundary problem, where information on the boundary heat flux and density of the sources are missing and must be found along with the temperature and the free boundary. We pursue optimal control framework where boundary heat flux, density of sources, and free boundary are components of the control vector. The optimality criteria consists of the minimization of the $L_2$-norm declinations of the temperature measurements at the final moment, phase transition temperature, and final position of the free boundary. We prove the Frechet differentiability in Besov spaces, and derive the formula for the Frechet differential under minimal regularity assumptions on the data. The result implies a necessary condition for optimal control and opens the way to the application of projective gradient methods in Besov spaces for the numerical solution of the inverse Stefan problem.
description: 21 pages
Obenauer, Silke, Vielfältig begabt
Creators: name: Baumert, Manfred Otto Willi
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1823352189
description: Jahrbuch für evangelikale Theologie, V. 24 (2010): Jahrbuch für evangelikale Theologie, Band 24
An efficient solver for large structured eigenvalue problems in relativistic quantum chemistry
Creators: name: Shiozaki, Toru
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We report an efficient program for computing the eigenvalues and symmetry-adapted eigenvectors of very large quaternionic (or Hermitian skew-Hamiltonian) matrices, using which structure-preserving diagonalization of matrices of dimension N > 10000 is now routine on a single computer node. Such matrices appear frequently in relativistic quantum chemistry owing to the time-reversal symmetry. The implementation is based on a blocked version of the Paige-Van Loan algorithm [D. Kressner, BIT 43, 775 (2003)], which allows us to use the Level 3 BLAS subroutines for most of the computations. Taking advantage of the symmetry, the program is faster by up to a factor of two than state-of-the-art implementations of complex Hermitian diagonalization; diagonalizing a 12800 x 12800 matrix took 42.8 (9.5) and 85.6 (12.6) minutes with 1 CPU core (16 CPU cores) using our symmetry-adapted solver and Intel MKL's ZHEEV that is not structure-preserving, respectively. The source code is publicly available under the FreeBSD license.
Sensitivity of elements of the symmetry energy of nuclear matter to the properties of neutron-rich systems
Creators: name: Mondal, C.
name: Agrawal, B. K.
name: De, J. N.
name: Samaddar, S. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The sensitivity of nuclear symmetry energy elements at the saturation density to the binding energies of ultra neutron-rich nuclei (neutron to proton ratio $\sim$ 2) and the maximum mass of neutron star is explored within a relativistic mean field model. Values of the interaction parameters governing the isovector strengths and the symmetry elements are determined in tighter bounds. Assessments based on the sensitivity matrix reveal that the properties of extreme neutron-rich systems play a predominant role in narrowing down the uncertainties in the various symmetry energy parameters. The calculations are extended over a wide range of nuclear matter density and the results are discussed.
description: 9 pages, 7 figures (Accepted in Physical Review C)
Revisiting Mobility Modeling with Graph: A Graph Transformer Model for Next Point-of-Interest Recommendation
Creators: name: Xu, Xiaohang
name: Suzumura, Toyotaro
name: Yong, Jiawei
name: Hanai, Masatoshi
name: Yang, Chuang
name: Kanezashi, Hiroki
name: Jiang, Renhe
name: Fukushima, Shintaro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Next Point-of-Interest (POI) recommendation plays a crucial role in urban mobility applications. Recently, POI recommendation models based on Graph Neural Networks (GNN) have been extensively studied and achieved, however, the effective incorporation of both spatial and temporal information into such GNN-based models remains challenging. Extracting distinct fine-grained features unique to each piece of information is difficult since temporal information often includes spatial information, as users tend to visit nearby POIs. To address the challenge, we propose \textbf{\underline{Mob}}ility \textbf{\underline{G}}raph \textbf{\underline{T}}ransformer (MobGT) that enables us to fully leverage graphs to capture both the spatial and temporal features in users' mobility patterns. MobGT combines individual spatial and temporal graph encoders to capture unique features and global user-location relations. Additionally, it incorporates a mobility encoder based on Graph Transformer to extract higher-order information between POIs. To address the long-tailed problem in spatial-temporal data, MobGT introduces a novel loss function, Tail Loss. Experimental results demonstrate that MobGT outperforms state-of-the-art models on various datasets and metrics, achieving 24\% improvement on average. Our codes are available at \url{https://github.com/Yukayo/MobGT}.
description: Accepted as a full paper of SIGSPATIAL 2023
Meta-learning within Projective Simulation
Creators: name: Makmal, Adi
name: Melnikov, Alexey A.
name: Dunjko, Vedran
name: Briegel, Hans J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Learning models of artificial intelligence can nowadays perform very well on a large variety of tasks. However, in practice different task environments are best handled by different learning models, rather than a single, universal, approach. Most non-trivial models thus require the adjustment of several to many learning parameters, which is often done on a case-by-case basis by an external party. Meta-learning refers to the ability of an agent to autonomously and dynamically adjust its own learning parameters, or meta-parameters. In this work we show how projective simulation, a recently developed model of artificial intelligence, can naturally be extended to account for meta-learning in reinforcement learning settings. The projective simulation approach is based on a random walk process over a network of clips. The suggested meta-learning scheme builds upon the same design and employs clip networks to monitor the agent's performance and to adjust its meta-parameters "on the fly". We distinguish between "reflexive adaptation" and "adaptation through learning", and show the utility of both approaches. In addition, a trade-off between flexibility and learning-time is addressed. The extended model is examined on three different kinds of reinforcement learning tasks, in which the agent has different optimal values of the meta-parameters, and is shown to perform well, reaching near-optimal to optimal success rates in all of them, without ever needing to manually adjust any meta-parameter.
description: 14 pages, 12 figures
The Otelo Survey
Creators: name: Padilla- Torres, Carmen P.
name: Cepa Nogué, Jordi
name: Bongiovanni, Ángel
name: Pérez García, Ana María
name: Cedrés, Bernabé
name: Cerviño, Miguel
name: González-Serrano, Jose Ignacio
name: OTELO Team
Publisher: name: Zenodo
Year: 2022
Subjects: Survey, Emision Lines, pesudospectra, tunable filters,

description: OTELO is an ultradeep, 2D-spectroscopic (resolution R∼700) blind survey, de- fined on a window of 210 Å, centred at 9175 Å, targeting a region of the Extended Groth Field that is embedded in the Deep field 3 of the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS). Is the deepest pointing of GALEX in imag- ing and spectroscopy. Such spectra (more properly speaking Pseudo-Spectra or PS) were obtained using the red Tunable Filter (RTF) of the OSIRIS instrument at GTC. OTELO detects emission lines with a limiting flux of 5x10−19 erg/s/cm2 and observed equivalent widths (EW)≥5Å. Besides, OTELO is targeting low mass galaxies, down to M∗ ∼ 106M0. As reference, the MUSE Hubble Ultra Deep Field barely reach down to M∗ ∼ 108M0 in few cases, and only at redshifts below 0.4, and none at redshifts above ∼ 0.7. However, OTELO detects the bulk of emitters around 108 − 109M0 even at redshifts as high as 1.4, reaching down to 107M0 at redshift 0.4. Then, OTELO reaches stellar masses one order of magnitude lower than MUSE Hubble Ultra Deep Field. From OTELO database, we were able to generate a catalogue of 60[OII], emitters at < z >= 1.43. Approximately 93% of those emitters have masses in the range of 108 < M∗/M0 < 109 (inside the low-mass regime) and all of them are classified as late-type galaxies. From these [OII] emitters we generated the Luminosity Function, sampling it down to ∼ 1 dex lower than in previous works. Taking into account the results obtained for the lines Hα, Hβ and [OII], we were able to study the star formation rate, star formation rate density, and number density and the evolution of those parameters between redshift z ∼ 0.4 and 1.43. We obtained a robust estimate of the specific star formation rate stellar mass relation based on the lowest mass sample published so far. We also determine a flat trend of the star formation rate density and number density with redshift. Our results suggest a scenario of no evolution of the number density of galaxies, regardless of their masses, up to redshift z ∼ 1.4. This implies a gradual change of the relative importance of the star forming processes, from high-mass galaxies to low-mass galaxies, with decreasing redshift. We also found little or no variation of the star formation rate density in the redshift range of 0.4 < z < 1.43.
Observation of Dirac-like band dispersion in LaAgSb$_2$
Creators: name: Shi, X.
name: Richard, P.
name: Wang, Kefeng
name: Liu, M.
name: Matt, C. E.
name: Xu, N.
name: Dhaka, R. S.
name: Ristic, Z.
name: Qian, T.
name: Yang, Y. -F.
name: Petrovic, C.
name: Shi, M.
name: Ding, H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a combined angle-resolved photoemission spectroscopy (ARPES) and first-principles calculations study of the electronic structure of LaAgSb$_2$ in the entire first Brillouin zone. We observe a Dirac-cone-like structure in the vicinity of the Fermi level formed by the crossing of two linear energy bands, as well as the nested segments of Fermi surface pocket emerging from the cone. Our ARPES results show the close relationship of the Dirac cone to the charge-density-wave ordering, providing consistent explanations for exotic behaviors in this material.
description: 5 pages, 4 figures
On the characterization of models of H*: The semantical aspect
Creators: name: Breuvart, Flavien
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.3.2

description: We give a characterization, with respect to a large class of models of untyped lambda-calculus, of those models that are fully abstract for head-normalization, i.e., whose equational theory is H* (observations for head normalization). An extensional K-model $D$ is fully abstract if and only if it is hyperimmune, {\em i.e.}, not well founded chains of elements of D cannot be captured by any recursive function. This article, together with its companion paper, form the long version of [Bre14]. It is a standalone paper that presents a purely semantical proof of the result as opposed to its companion paper that presents an independent and purely syntactical proof of the same result.
Hawkins, Greg L. / Parkinson, Cally, Prüfen: Aufrüttelnde Erkenntnisse der RE-VEAL-Studie
Creators: name: Schweyer, Stefan
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1823351840
description: Jahrbuch für evangelikale Theologie, V. 24 (2010): Jahrbuch für evangelikale Theologie, Band 24