cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Choice modelling in the age of machine learning -- discussion paper
Creators: name: Van Cranenburgh, S.
name: Wang, S.
name: Vij, A.
name: Pereira, F.
name: Walker, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Econometrics (econ.EM)
subject: Machine Learning (cs.LG)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Since its inception, the choice modelling field has been dominated by theory-driven modelling approaches. Machine learning offers an alternative data-driven approach for modelling choice behaviour and is increasingly drawing interest in our field. Cross-pollination of machine learning models, techniques and practices could help overcome problems and limitations encountered in the current theory-driven modelling paradigm, such as subjective labour-intensive search processes for model selection, and the inability to work with text and image data. However, despite the potential benefits of using the advances of machine learning to improve choice modelling practices, the choice modelling field has been hesitant to embrace machine learning. This discussion paper aims to consolidate knowledge on the use of machine learning models, techniques and practices for choice modelling, and discuss their potential. Thereby, we hope not only to make the case that further integration of machine learning in choice modelling is beneficial, but also to further facilitate it. To this end, we clarify the similarities and differences between the two modelling paradigms; we review the use of machine learning for choice modelling; and we explore areas of opportunities for embracing machine learning models and techniques to improve our practices. To conclude this discussion paper, we put forward a set of research questions which must be addressed to better understand if and how machine learning can benefit choice modelling.
description: 40 pages, 2 tables, 0 figures
Electric vehicle grid demand
Creators: name: Bukya, Mahipal
name: Sharma, Swati
name: Kumar, Rajesh
name: Mathur, Akhilesh
name: Gowtham N
name: Kumar, Pancham
Publisher: name: Visions for Sustainability
Year: 2024

description: Electric transportation is a societal necessity to mitigate the adverse effects of local emissions and global climate change. To reach net zero emissions by 2050, countries have examined many strategies to electrify road transport and deploy electric vehicles (EVs). Due to falling lithium-ion (Li-ion) battery pack costs, global electric vehicle sales have grown consistently over the past decade and reached 10 million units in 2022. The safe and steady operation of the regional power grid may be compromised by the connection of a sizable random charging load. Therefore, it is crucial to conduct a pre-emptive analysis of the charging load and its potential impact, ensuring that electric vehicles can seamlessly integrate with the grid upon connection. This study employs PVsyst simulation software to assess the feasibility of a 12800 MWp (9000 MWp plus 3800 MWp) PV grid-tied system in India's Delhi-NCR region. The system's affordability and spatial compatibility are considered. The average electrical loads for the Delhi-NCR region have been estimated. The system achieves a 0.846 performance ratio, generating 1648 KWh/KWp/year. About 52.7% of the load has been utilized by the electric vehicle, while the surplus is fed into the power grid. This study emphasizes PV systems effectiveness in alleviating grid peak loads, their cost-effectiveness, low maintenance, and adaptability to peak-time loads.
description: Visions for Sustainability, NEW Visions online
Shear-Induced Nano-Macro Structural Transition in a Polymeric Bicontinuous Microemulsion
Creators: name: Almdal, Kristoffer
name: Bates, Frank S.
name: Burghardt, Wesley R.
name: Krishnan, Kasiraman
name: Lodge, Timothy P.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Topological order of mixed states in quantum many-body systems
Creators: name: Grusdt, Fabian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological order has become a new paradigm to distinguish ground states of interacting many-body systems without conventional long-range order. Here we discuss possible extensions of this concept to density matrices describing statistical ensembles. For a large class of quasi-thermal states, which can be realized as thermal states of some quasi-local Hamiltonian, we generalize earlier definitions of density matrix topology to generic many-body systems with strong correlations. We point out that the robustness of topological order, defined as a pattern of long-range entanglement, depends crucially on the perturbations under consideration. While it is intrinsically protected against local perturbations of arbitrary strength in an infinite closed quantum system, purely local perturbations can destroy topological order in open systems coupled to baths if the coupling is sufficiently strong. We discuss our classification scheme using the finite-temperature quantum Hall states and point out that the classical Hall effect can be understood as a finite temperature topological phase.
description: 12 pages, 6 figures
Energy and mass dependencies for the characteristics of $p_T$ regions observed at LHC energies
Creators: name: Suleymanov, Mais
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The $p_T$ distributions of the $K^0$- and $ϕ$ - mesons produced in the $pp$ collisions at $\sqrt{s}=2.76 TeV$ have been analyzed by fitting them using the exponential function. It was observed that the distributions contain several $p_T$ regions similar to the cases with the charged particles, $π^0$- and $η$- mesons produced in the same events. These regions could be characterized using three variables: the length of the region $L^{c}_K $ and free fitting parameters $a^{c}_K $ and $b^{c}_K $. It was observed that the values of the parameters as a function of energy grouped around certain lines and there are jump-like changes. These observations together with the effect of existing the several $p_T$ regions can say on discrete energy dependencies for the $L^{c}_K $ , $a^{c}_K $ and $b^{c}_K $. The lengths of the regions increase with the mass of the particles. This increase gets stronger with energy. The mass dependencies of the parameters $a^{c}_K $ and $b^{c}_K $ show a regime change at a mass $\simeq 500 MeV/c^2$. According to the phenomenology of string theory, these results could be explained by two processes occurring simultaneously: string hadronization and string breaking. In the experiment we can only measure the spectrum of the hadronized particles, since we cannot access the spectrum of the strings themselves. The string breaking effect could be a signal of string formations and the reason behind the observation of several $p_T$ regions and the jump-like changes for the characteristics of the regions.
description: 15 pages,12 figures,4 tables
Indicateurs de vigilance en chirurgie : définition et utilisation pour l’autorisation des activités de soin
Creators: name: Mentec, Hervé
name: Legris, Candice
name: Cabarrot, Philippe
name: May-Michelangeli, Laetitia
Publisher: name: Health & Co
Year: 2023
Subjects: Indicateurs de vigilance
Qualité des soins
Sécurité du patient
Chirurgie

description: Dans le cadre de la rénovation des décrets d’autorisation d’activités chirurgicales, le ministère des Solidarités et de la Santé a saisi la Haute Autorité de santé (HAS), en collaboration avec l’Agence technique de l’information sur l’hospitalisation (Atih), pour définir des indicateurs de résultat mesurés à partir du Programme de médicalisation des systèmes d’information de l’hospitalisation en médecine, chirurgie, obstétrique et odontologie (PMSI-MCO) permettant une alerte en matière de qualité et de sécurité des soins pour les activités de chirurgie. Ces indicateurs ont pris le nom d’« indicateurs de vigilance » dans les textes législatifs encadrant cette réforme. Une recherche documentaire réalisée par la HAS a permis d’identifier 1 019 indicateurs de résultat. Parmi ceux-ci, 198 ont été considérés comme mesurables à partir du PMSI-MCO par l’Atih. Ces indicateurs éligibles ont ensuite été soumis aux parties prenantes afin d’en sélectionner cinq par spécialité sur la base de leur pertinence clinique et de leur pertinence pour l’amélioration de la qualité et de la sécurité des soins. Compte tenu de l’existence d’ex aequo et de doublons, 77 indicateurs ont ainsi été définis, dont 15 spécifiques à une spécialité et 59 applicables à toute chirurgie. Ces indicateurs portaient principalement sur la mortalité, les réadmissions et les complications. Par ailleurs, des préconisations sur les modalités de leur mise en œuvre ont été proposées. La définition des indicateurs de vigilance constitue la première étape des travaux. Dans un second temps, un nombre restreint d’indicateurs sera développé et validé par l’Atih, en définissant notamment leur périmètre (populations cibles, critères d’inclusions et d’exclusions…), les ajustements à appliquer et les seuils d’alerte.
Employment and Human Resource Practices in Small Businesses of Addis Ababa
Creators: name: Muktar, Lina
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2011

description: Based on data collected from 44 respondents in twenty three small business units located in Addis Ababa by the use of survey questionnaire, the present study makes an attempt to explore small business workers and the human resource practices prevailing in small businesses. The results from the study indicate that small businesses have lesser proportion of female workers than their male counter parts. In addition, they are filled with people with less education level. Likewise, in terms of age, small business workers are mostly found in age range of eighteen to thirty five years and small business units do not have formal HRM practices in the recruitment and selection areas, but they do have HRM practices such as recruitment, selection, and training. For testing the hypothesis t-test was applied. The predominant characteristics of these practices are found to be informal. Having understood the nature/characteristics of small business employees and HR practices in small firms, this paper suggests formalization of the recruitment and selection system that can be used to nurture better performers. Additionally, owners of small businesses should see training of their employees as investment not a cost. Key words: small businesses, workers/employees, HRM (human resource management) practices, recruitment, gender, education, age.
Quantum Gravity in the Lab: Teleportation by Size and Traversable Wormholes, Part II
Creators: name: Nezami, Sepehr
name: Lin, Henry W.
name: Brown, Adam R.
name: Gharibyan, Hrant
name: Leichenauer, Stefan
name: Salton, Grant
name: Susskind, Leonard
name: Swingle, Brian
name: Walter, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In [1] we discussed how quantum gravity may be simulated using quantum devices and gave a specific proposal -- teleportation by size and the phenomenon of size-winding. Here we elaborate on what it means to do 'Quantum Gravity in the Lab' and how size-winding connects to bulk gravitational physics and traversable wormholes. Perfect size-winding is a remarkable, fine-grained property of the size wavefunction of an operator; we show from a bulk calculation that this property must hold for quantum systems with a nearly-AdS_2 bulk. We then examine in detail teleportation by size in three systems: the Sachdev-Ye-Kitaev model, random matrices, and spin chains, and discuss prospects for realizing these phenomena in near-term quantum devices.
description: 50 pages, 14 figures, Part II of arXiv:1911.06314
Interpretation of Lepton Flavor Violation
Creators: name: Heeck, Julian
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The observation of a charged-lepton flavor violating process would be a definite sign for physics beyond the Standard Model, but would actually only prove that one particular linear combination of lepton numbers is violated. We categorize lepton-flavor-violating processes by their quantum numbers and show how their discovery can be interpreted model independently, studying in particular which processes are required to establish that the entire flavor group is broken. We also comment on total lepton number, seeing as lepton number violation practically implies lepton flavor violation as well.
description: 6 pages, added references and clarifications
DEVELOPMENT OF ISLAMIC FINANCE.
Creators: name: Akramova, Dilnoza
Publisher: name: Zenodo
Year: 2024

description: This article offers a comprehensive exploration of the historical roots, key components, global expansion, and future trends of Islamic finance. By examining the principles of Sharia compliance, the growth of Islamic banking and capital markets, and the challenges and innovations within the industry, the article aims to provide readers with a nuanced understanding of Islamic finance's evolution and its potential impact on the global financial landscape.
Cross sections of X-ray production induced by C and Si ions with energies up to 1 MeV/u on Ti, Fe, Zn, Nb, Ru and Ta
Creators: name: Prieto, J. E.
name: Zucchiatti, A.
name: Galán, P.
name: Prieto, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: X-ray production differential cross sections induced by C and Si ions with energies from 1 MeV/u down to 0.25 MeV/u, produced by the CMAM 5 MV tandem accelerator, have been measured for thin targets of Ti, Fe, Zn, Nb, Ru and Ta in a direct way. X-rays have been detected by a fully characterized silicon drift diode and beam currents have been measured by a system of two Faraday cups. Measured cross sections agree in general with previously published results. The ECPSSR theory with the united atoms correction gives absolute values close to the experimental ones for all the studied elements excited by C ions and for Ta, Nb and Ru excited by Si ions. For Ti, Fe and Zn excited by Si, the basic ECPSSR theory gives better agreement, although on absolute values the gap for Ti is still large.
description: 11 pages, 2 tables, 7 figures. Contribution to the 12th. European Conference on Accelerators in Applied Research and Technology (ECAART 12) held in Jyv\"askyl\"a, Finland, 3-8 July 2016
STS-GAN: Can We Synthesize Solid Texture with High Fidelity from Arbitrary 2D Exemplar?
Creators: name: Zhao, Xin
name: Guo, Jifeng
name: Wang, Lin
name: Li, Fanqi
name: Li, Jiahao
name: Zheng, Junteng
name: Yang, Bo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Solid texture synthesis (STS), an effective way to extend a 2D exemplar to a 3D solid volume, exhibits advantages in computational photography. However, existing methods generally fail to accurately learn arbitrary textures, which may result in the failure to synthesize solid textures with high fidelity. In this paper, we propose a novel generative adversarial nets-based framework (STS-GAN) to extend the given 2D exemplar to arbitrary 3D solid textures. In STS-GAN, multi-scale 2D texture discriminators evaluate the similarity between the given 2D exemplar and slices from the generated 3D texture, promoting the 3D texture generator synthesizing realistic solid textures. Finally, experiments demonstrate that the proposed method can generate high-fidelity solid textures with similar visual characteristics to the 2D exemplar.
Parameter estimation in the presence of the most general Gaussian dissipative reservoir
Creators: name: Jarzyna, Marcin
name: Zwierz, Marcin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the performance of quantum parameter estimation in the presence of the most general Gaussian dissipative reservoir. We derive lower bounds on the precision of phase estimation and a closely related problem of frequency estimation. For both problems we show that it is impossible to achieve the Heisenberg limit asymptotically in the presence of such a reservoir. However, we also find that for any fixed number of probes used in the setup there exists a Gaussian dissipative reservoir, which, in principle, allows for the Heisenberg-limited performance for that number of probes. We discuss a realistic implementation of a frequency estimation scheme in the presence of a Gaussian dissipative reservoir in a cavity system.
description: 11 pages, 4 figures, final version
Magnetic response of non-interacting and interacting electrons in a Möbius strip
Creators: name: Saha, Madhumita
name: Maiti, Santanu K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate characteristic features of both non-interacting and interacting electrons in a Möbius strip, the simplest possible one-sided topological system, in presence of an Aharonov-Bohm flux $ϕ$. Using Hartree-Fock mean field theory we determine energy eigenvalues for the interacting model, while for the non-interacting system an analytical prescription is given. The interplay between longitudinal and vertical motions of electrons along with on-site Hubbard interaction yield several anomalous features of persistent current associated with energy-flux characteristics. The variation of current with system size and its temperature dependences are also critically examined. Current is highly sensitive to both these two factors, and we find that for a particular system size it decreases exponentially with temperature. Our analysis can be helpful in investigating electronic transport through any non-trivial topological material.
description: 9 pages, 14 figures (Accepted for Publication in Superlattices and Microstructures)
Effective Public Procurement Management in Implementation of Successful Public Projects in Ethiopia: A Case Study of Addis Ababa City Government Housing Development Project Offices .
Creators: name: Seife, Martha
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: The Research attempted to identify the impact of public procurement practice on constriction of condominium housing, to asses if procurement planning affects implementation of public projects, to find out if choice of procurement methods and procedures influences public projects implementation, to evaluate if contract management and control influence public projects, to determine if public procurement directive affects project implementation. Ethiopia as one of the poor countries is doing to ensure the fulfillment of basic needs for the citizens is striving to insure sustainable development. Hence, the current regime, EPRDF, by realizing decent shelter is the key to become a human being, it has lunched Integrated Housing Development Programme (IHDP)was launched in 2004 (1996 in the Ethiopian calendar) . Various strategies and programs are introduced and implemented at different periodical intervals with the primary objective of housing problem. It was therefore, necessary to examine the impact of current public procurement practice on constriction of condominium housing, procurement planning, procurement method, procurement contract administration and the procurement policy. To achieve the above objective, the study depended on both primary and secondary information and data collected form target population. It was find public procurement practice have a great large position in any case of success or failure. It was also realized that procurement planning, procurement methods and procedures, contract administration and procurement directives affect project implementation, since materials are the live hood of construction. Therefore, it was concluded that public procurement practice has a great impact on the completion of public projects as per the initial plan
Extension of Whitney jets of controlled growth
Creators: name: Rainer, Armin
name: Schindl, Gerhard
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We revisit Whitney's extension theorem in the ultradifferentiable Roumieu setting. Based on the description of ultradifferentiable classes by weight matrices, we extend results on how growth constraints on Whitney jets on arbitrary compact subsets in $\mathbb R^n$ are preserved by their extensions to $\mathbb R^n$. More precisely, for any admissible class $\mathcal C$ of ultradifferentiable functions on $\mathbb R^n$ we determine a class $\mathcal C'$ such that all ultradifferentiable Whitney jets of class $\mathcal C'$ on arbitrary compact subsets admit extensions in $\mathcal C$. The class $\mathcal C'$ can be explicitly computed from $\mathcal C$.
description: 21 pages; minor changes, some references added; accepted for publication in Math. Nachr
The Role of E-government in Enhancing Performances of Public Service Qualities and Promoting Good Governance: With Special Reference of Document Authentication and Registration Agency
Creators: name: Worku, Kiflie
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: This research has emphasized on "The Role of E-governmnet in Enhancing Performances of Public Service Qualities and Promoting Good Governance". The research has used explantory research type and both quantitative and qualitative data. Quantitative data were analyzed using multiple linear regression model, one way annova and correlations coefficients to test hypothesis and quanlitative data were anlyzed using five steps (Compiling, disassembling, reassembling, interprating and concluding) of data. All data were gained from questionnaire, key informants interview, structured observation and secondary data to achieved its objective. The advancements in the field of Public administration and ICT have opened up huge opportunities for government to transform their operation and services delivery system. E- government is a paradigm shift over traditional public administration aimed at rendering of governmnet services and information to the public using electronic channels. While, government organizations have faced great levels of uncertainity in deploying and providing E-government services because of the complexity of technology, deeply entrenched organizational routines, and great diversity in the acceptance of technology by individuals. This study has explored that; successful E-government implementation has very posetive effects on improving public service quailities and promoting good governance in public sectors. Again the findings reveaved that botleneckes for succesful implemnetations were (poor leadership commitement and knowledge gap, poor IT skills and Customers awareness gap, public sectors preffere to stayed with traditional service delivery mechanisms, poor websirte, design, features and contents, unaligned sectorial E-service platform implemntations). This study has forwarded as recommendations (public sectors have transform traditional service delivery to interoperability systems using ERP, build up leadership commitments, increase customers'/citizens awaremness level and IT skill, improve website feature, dessign and contents
Stationary States in Quantum Walk Search
Creators: name: Prūsis, Krišjānis
name: Vihrovs, Jevgēnijs
name: Wong, Thomas G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: When classically searching a database, having additional correct answers makes the search easier. For a discrete-time quantum walk searching a graph for a marked vertex, however, additional marked vertices can make the search harder by causing the system to approximately begin in a stationary state, so the system fails to evolve. In this paper, we completely characterize the stationary states, or 1-eigenvectors, of the quantum walk search operator for general graphs and configurations of marked vertices by decomposing their amplitudes into uniform and flip states. This infinitely expands the number of known stationary states and gives an optimization procedure to find the stationary state closest to the initial uniform state of the walk. We further prove theorems on the existence of stationary states, with them conditionally existing if the marked vertices form a bipartite connected component and always existing if non-bipartite. These results utilize the standard oracle in Grover's algorithm, but we show that a different type of oracle prevents stationary states from interfering with the search algorithm.
description: 10 pages, 9 figures
An Inexact Semi-smooth Newton Method on Riemannian Manifolds with Application to Duality-based Total Variation Denoising
Creators: name: Diepeveen, Willem
name: Lellmann, Jan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 49M05, 49M15, 49M29, 49Q99

description: We propose a higher-order method for solving non-smooth optimization problems on manifolds. In order to obtain superlinear convergence, we apply a Riemannian Semi-smooth Newton method to a non-smooth non-linear primal-dual optimality system based on a recent extension of Fenchel duality theory to Riemannian manifolds. We also propose an inexact version of the Riemannian Semi-smooth Newton method and prove conditions for local linear and superlinear convergence that hold independent of the sign of the curvature. Numerical experiments on l2-TV-like problems with dual regularization confirm superlinear convergence on manifolds with positive and negative curvature.
Electronic structure of BaSnO3 investigated by high-energy-resolution electron energy-loss spectroscopy and ab initio calculations
Creators: name: Yun, Hwanhui
name: Topsakal, Mehmet
name: Prakash, Abhinav
name: Ganguly, Koustav
name: Leighton, Chris
name: Jalan, Bharat
name: Wentzcovitch, Renata M.
name: Mkhoyan, K. Andre
name: Jeong, Jong Seok
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: There has been growing interest in perovskite BaSnO3 due to its desirable properties for oxide electronic devices including high electron mobility at room temperature and optical transparency. As these electronic and optical properties originate largely from the electronic structure of the material, here the basic electronic structure of epitaxially-grown BaSnO3 films is studied using high-energy-resolution electron energy-loss spectroscopy in a transmission electron microscope and ab initio calculations. This study provides a detailed description of the dielectric function of BaSnO3, including the energies of bulk plasmon excitations and critical interband electronic transitions, the band structure and partial densities of states, the measured band gap, and more. To make the study representative of a variety of deposition methods, results from BaSnO3 films grown by both hybrid molecular beam epitaxy and high pressure oxygen sputter deposition are reported.
description: 23 pages, 7 figures, 3 tables
Preschool Mathematics and Literacy Skills and Educational Attainment in Adolescents Born Preterm and Full Term
Creators: name: Baumann, Nicole
name: Voit, Falk
name: Wolke, Dieter
name: Trower, Hayley
name: Bilgin, Ayten
name: Kajantie, Eero
name: Räikkönen, Katri
name: Heinonen, Kati
name: Schnitzlein, Daniel D.
name: Lemola, Sakari
Publisher: name: St. Louis, Mo. : Mosby
Year: 2023
Subjects: subject: adolescence
subject: ALSPAC
subject: educational attainment
subject: longitudinal study
subject: preschool
subject: preterm birth
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Objectives: To test whether preschool academic skills were associated with educational attainment in adolescence and whether associations differed between individuals born preterm and at full term. Study design: This prospective cohort study comprised 6924 individuals, including n = 444 (6.4%) adolescents born preterm (<37 weeks of gestation) from the Avon Longitudinal Study of Parents and Children. Preschool academic (mathematics and literacy) skills were rated by teachers at 4-5 years. Educational attainment at 16 years was informed by attaining a General Certificate of Secondary Education (GCSE) in key subjects mathematics and English. Logistic regressions assessed the association between preterm birth, preschool mathematics, and GCSE Mathematics and between preterm birth, preschool literacy, and GCSE English. Results: Similar numbers of adolescents born preterm and at term achieved a GCSE in mathematics and English (53.6 % vs 57.4% and 59.5% vs 63.9%, respectively; P values > .05). Higher preschool academic skill scores in mathematics were associated with greater odds of attaining GCSE Mathematics and preschool literacy skills were associated with GCSE English. Adolescents born preterm with higher preschool mathematics (OR: 1.51, CI: 1.14, 2.00) and literacy skills (OR: 1.57, CI: 1.10, 2.25) were more likely to attain GCSEs in the respective subject than their term-born counterparts with equal levels of preschool skills. Conclusions: Preschool academic skills in mathematics and literacy are associated with educational attainment of preterm and term-born individuals in adolescence. Children born prematurely may benefit more from preschool mathematics and literacy skills for academic and educational success into adolescence than term-born individuals.
Perception of Service Quality and Loyalty Among Customers of Insurance Companies: Comparative Analysis of Nile, Nyala and Awash Insurance
Creators: name: Itana, Djalalie
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2011

description: The aim of this study was to: a) Compare perception of insurance service quality among insurance customers and b) to determine the relationship between (if existed) service quality and loyalty. Data were collected using questionnaire from six branches of insurance customers (20 customers from each insurance company). Service quality was measured using seven dimensions which were: Access quality, Infrastructure quality, Responsiveness, Competence, Courtesy, Problem Solving quality and Credibility. Data were analyzed using gap analysis, factor analysis, and correlation analysis. Respondents in the three insurances reported low levels of perceived service quality. However, compared to service quality of Nile and Nyala insurance, Awash insurance reported better perceived service quality. In Nile insurance, Competence and Credibility dimensions are related to loyalty dimensions. In Nyala insurance, Responsiveness dimension is related to loyalty dimension. Finally, in Awash insurance, Responsiveness and Courtesy dimensions are related to loyalty dimensions. The three insurance managers should recognize the importance of service quality in service delivery and implement appropriate customer oriented strategies. The managers should recognize the importance of problem solving quality and improve ways to address complaints and provide solutions to customers' problems. Moreover, managers should work to improve the service qualities of their respective insurances to be competitive in the market. Keywords: Service Quality, Service quality dimensions, Insurance, factor analysis, Gap analysis, Correlation analysis.
REVOLUTIONIZING SCHOOL GRADUATION FINALS: CHAMPIONING THE STUDENT'S E-PORTFOLIO
Creators: name: Sofia, Hernandez
Publisher: name: SADI journals
Year: 2024
Subjects: Education
e-portfolio
schools final exams
university enrolment
transform education
embedding technology in education.

description: The concept of e-portfolios is to reflect an avenue into the past, present, and future of a person; displaying his or her lifetime education and  devotion to further development, represents a valuable tool in aiding students’ not only in their academic growth, but mainly in their transition into higher education levels or even new careers. In the last few years, especially after the COVID-19 pandemic, the use of e-portfolios has shown an unexpected rise on university level, in its use to meet new developed needs. This work gives a brief definition of e-portfolios, how faculty members and students gain from them, and how to select the correct e-portfolio platform to support traditional school graduation final exams and university enrolment systems
PHIDL: Python CAD layout and geometry creation for nanolithography
Creators: name: McCaughan, A. N.
name: Tait, A. M.
name: Buckley, S. M.
name: Oh, D. M.
name: Chiles, J. T.
name: Shainline, J. M.
name: Nam, S. W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Graphics (cs.GR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Computer-aided design (CAD) has become a critical element in the creation of nanopatterned structures and devices. In particular, with the increased adoption of easy-to-learn programming languages like Python there has been a significant rise in the amount of lithographic geometries generated through scripting and programming. However, there are currently unaddressed gaps in usability for open-source CAD tools -- especially those in the GDSII design space -- that prevent wider adoption by scientists and students who might otherwise benefit from scripted design. For example, constructing relations between adjacent geometries is often much more difficult than necessary -- spacing a resonator structure a few micrometers from a readout structure often requires manually-coding the placement arithmetic. While inconveniences like this can be overcome by writing custom functions, they are often significant barriers to entry for new users or those less familiar with programming. To help streamline the design process and reduce barrier to entry for scripting designs, we have developed PHIDL, an open-source GDSII-based CAD tool for Python 2 and 3.
Harmonic dipoles and the relaxation of the neo-Hookean energy in 3D elasticity
Creators: name: Barchiesi, Marco
name: Henao, Duvan
name: Mora-Corral, Carlos
name: Rodiac, Rémy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the problem of minimizing the neo-Hookean energy in \(3D\). The difficulty of this problem is that the space of maps without cavitation is not compact, as shown by Conti \& De Lellis with a pathological example involving a dipole. In order to rule out this behaviour we consider the relaxation of the neo-Hookean energy in the space of axisymmetric maps without cavitation. We propose a minimization space and a new explicit energy penalizing the creation of dipoles. This new energy, which is a lower bound of the relaxation of the original energy, bears strong similarities with the relaxed energy of Bethuel-Brezis-Hélein in the context of harmonic maps into the sphere.
description: 35 pages
Competition between Spin Echo and Spin Self-Rephasing in a Trapped Atom Interferometer
Creators: name: Solaro, Cyrille
name: Bonnin, Alexis
name: Combes, Frédéric
name: Lopez, Matthias
name: Alauze, Xavier
name: Fuchs, Jean-Noël
name: Piéchon, Frédéric
name: Santos, Franck Pereira dos
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We perform Ramsey interferometry on an ultracold 87Rb ensemble confined in an optical dipoletrap. We use a π-pulse set at the middle of the interferometer to restore the coherence of the spinensemble by canceling out phase inhomogeneities and creating a spin echo in the contrast. However,for high atomic densities, we observe the opposite behavior: the π-pulse accelerates the dephasingof the spin ensemble leading to a faster contrast decay of the interferometer. We understand thisphenomenon as a competition between the spin-echo technique and an exchange-interaction drivenspin self-rephasing mechanism based on the identical spin rotation effect. Our experimental data iswell reproduced by a numerical model.
Determinants Of Key Account Management Effectiveness The Case Of Abyssinia Bank
Creators: name: Balkew, Tegenu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: In today's marketing environment marketing is changing from selling and transaction concept to long lasting relationship development concept and key account management is also a practice to develop log lasting profitable relationship with strategically important customers. Having this in mind this thesis is conducted under the title of Determinants of key account management effectiveness in the case of Bank of Abyssinia and investigation was made on five factors (competency of KA employees, marketing strategy, solution, organizational culture and communication quality) that affect KAM effectiveness. The main objective of this study was to identify major determinants of key account management effectiveness. The study was conducted based on responses of key account customers of BOA as well as interview response of selected KA staffs (in managerial as well as in non managerial position) of the bank. A quantitative and qualitative (mixed) approach is chosen in this research. In order to collect primary data, a questionnaire is designed and was given to the KA customers of the BOA (total of 1634 KA customers). 321 questionnaires were distributed to sample respondents and 298 questionnaires were properly filled and analyzed. In addition to questionnaire, semi-structured interview questions were prepared to get information from the organization which is analyzed qualitatively and interviewees were purposely selected KA staffs of BOA. Among the total of sixty three KA staffs (managerial and non-managerial positioned) qualitative data were collected from purposely selected KA staffs. The SPSS version 20.00 is used to process the primary quantitative data which is collected through questionnaire. The finding shows that all five variables (competency of KA employees, marketing strategy, solution, organizational culture and communication quality) have significant positive effect on key account management effectiveness. However, among variables marketing strategy highly affects KAM effectiveness. Based on the result of analysis the study suggests a series of measures which could be taken by the banking that would support KAM effective implementation.
Where does the X(5568) structure come from?
Creators: name: Yang, Zhi
name: Wang, Qian
name: Meißner, Ulf-G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the semi-exclusive production of $π^\pm B_s^0$ pairs in hadron colliders which is associated with the $X(5568)$ structure observed by the D0 Collaboration in 2016, but that was not confirmed by LHCb and CMS later. The reason of its appearance in the D0 and absence in LHCb and CMS is discussed in this letter. In a semi-exclusive process, one might miss the third particle which is produced together with the $π^\pm B_s^0$ simultaneously. In the three-body Dalitz plot, once the remaining region is narrow enough after the kinematic cuts, its reflection to another invariant mass distribution will accumulate a large number of events within a specific energy region. If there is an enhancement in the remaining region, it will make the reflection structure more pronounced. The precise line shape of the reflection will depend on the specific interaction form. A combined study of different cone cuts and the low-energy dynamics, e.g. the Landau singularity, demonstrates that the $X(5568)$ structure could come from this kinematic reflection. This conclusion can be checked by both searching for the enhancement in another invariant mass distribution, such as $B_s^0\bar{B}^0$, and the cone cut dependence of the $X(5568)$ mass. Such a combined study can be used to distinguish the effects of the triangle singularity from a genuine state. We also propose how to avoid this kinematic reflection in future experimental analysis.
description: 5 pages, 4 figures, accepted for publication in Phys. Lett. B
EFFECTS OF TEMPERATURE ON TISSUE TURNOVER RATE OF GAMMARUS MINUS AND CAECIDOTEA KENKI
Creators: name: Amberger, Tara
Publisher: name: American University
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Marine and estuarine ecology (incl. marine ichthyology)

description: As global temperatures rise due to climate change it is important to investigate the impact that increasing temperatures will have on the organisms living on this planet. This study investigated the effects of temperature on the tissue turnover rate of the freshwater amphipod, Gammarus minus, and the isopod Caecidotea kenki. This was done by looking at the tissue turnover rate via δ13C at three temperatures 5°C, 12°C, and 18°C. It was found that for C. kenki there was a very clear and steady increase in the tissue turnover rate as the temperature increases going from 0.01 day−1 at 5°C, 0.025 day−1 at 12°C, and 0.032 day−1 at 18°C. G. minus had a less steady increase with the tissue turnover rate going from 0.013 day−1 at 5°C, to 0.033 day−1 at 12°C, and 0.029 day−1 at 18°C. The tissue turnover rate for G. minus seems to level out between 12°C and 18°C. The variability in the change in tissue turnover was also analyzed and it was found that C. kenki had increasing variability that aligned with increasing temperatures. G. minus however did not show any change in variability with the temperature change. This data suggests that G. minus will not do as well with increasing temperatures compared to C. kenki. The results from this study also show that tissue turnover via δ13C is an effective tool for understanding metabolic rates in very small organisms where traditional methods are very difficult and expensive.
The effects of the U$_\textrm{Y}$(1) Chern-Simons term and its baryonic contribution on matter asymmetries and hypermagnetic fields
Creators: name: Zadeh, S. Rostam
name: Gousheh, S. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we study the significance of the U$_\textrm{Y}$(1) Chern-Simons term in general, and its baryonic contribution in particular, for the evolution of the matter asymmetries and the hypermagnetic field in the temperature range $100$GeV$\leq T \leq 10$TeV. We show that an initial helical hypermagnetic field, denoted by $B_Y^{(0)}$, can grow matter asymmetries from zero initial value. However, the growth which is initially quadratic with respect to $B_Y^{(0)}$, saturates for values larger than a critical value. The inclusion of the baryonic contribution reduces this critical value, leading to smaller final matter asymmetries. Meanwhile, $B_Y(T_{EW})$ becomes slightly larger than $B_Y^{(0)}$. In the absence of the U$_\textrm{Y}$(1) Chern-Simons term, the final values of matter asymmetries grow without saturation. Conversely, we show that an initial matter asymmetry can grow an initial seed of hypermagnetic field, provided the Chern-Simons term is taken into account. The growth process saturates when the matter asymmetry drops abruptly. When the baryonic contribution is included, the saturation occurs at an earlier time, and $B_Y (T_{EW})$ becomes larger. We also show the results can be within the acceptable range of present day data, provided the inverse cascade process is also taken into account.
description: 34 pages, 4 figures
The Effect of Service Quality on Customer Satisfaction: The case of the billing system on Ethiopia Electric Utility Enterprise
Creators: name: Fekadu, Asenaku
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The purpose of this study was to investigate the effect of service quality on customer satisfaction in the case of the billing system on Ethiopia Electric Utility. The study used quantitative research method and employed explanatory survey design to objectively answer the research questions. For achieving the study objective, 386 sample respondents were selected through simple random sampling technique. Accordingly, data were collected through self administered questionnaire from sample respondents. Out of 386 respondents, workable data were obtained from 358 respondents. The data collected from the questionnaire were analyzed using. Statistical tools such as mean, standard deviation, correlation, and multiple regression analysis. The results of this study indicate that, except reliability the four service quality dimensions (tangibility, assurance, empathy and responsiveness) have positive and significant relationship with customer satisfaction. The finding of this study also indicates that majority of the respondents were disagree with the five dimensions of service quality. On the other hand the customers were dissatisfied with the overall satisfaction the firm billing methods. The results also indicate that unlike reliability the four service quality dimensions (tangibility, empathy, assurance and responsiveness) have positive and significant effect on customer satisfaction. Based on the findings of the study, the researcher forwards some recommendations to the EEU should work more in improving the low scored means of the five dimensions for EEU billing method
Axion-like particles resolve the $B \to πK$ and g-2 anomalies
Creators: name: Bhattacharya, Bhubanjyoti
name: Datta, Alakabha
name: Marfatia, Danny
name: Nandi, Soumitra
name: Waite, John
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We offer a new solution to an old puzzle in the penguin-dominated $B\toπK$ decays. The puzzle is the inconsistency among the measurements of the branching ratios and CP asymmetries of the four $B\toπK$ decays: $B^+ \to π^+ K^0$, $B^+\to π^0 K^+$, $B_d^0\toπ^- K^+$, $B_d^0\toπ^0 K^0$. We solve the $B\toπK$ puzzle by considering the effect of an axion-like particle (ALP) that mixes with the $π^0$ and has mass close to the $π^0$ mass. We show that the ALP can also explain the anomalies in the electron and muon anomalous magnetic moments.
description: 6 pages, 3 tables. Version to appear as a Letter in PRD
Die Zukunft eines qualitativen Keynesianismus in Europa
Creators: name: Zinn, Karl G.
Publisher: name: Lucius & Lucius Verlagsgesellschaft
Year: 2003
Subjects: subject: 300
subject: 650

description: Die westeuropäischen Länder weisen erhebliche Unterschiede in der langfristigen Entwicklung von Arbeitslosigkeit und sozialer Armut auf. Die markanten Differenzen deuten auf historisch tiefer liegende sozialethische Divergenzen hin. Mit Rückgriff auf Alfred Webers kultursoziologische Entwicklungstheorie werden der Einfluss der politischen Kultur bei jenen Differenzen thematisiert und die beschäftigungspolitischen Alternativen, wohlfahrtsstaatlich-keynesianische versus neofeudalistisch-liberalistische Beschäftigungspolitik, als Ausfluss unterschiedlicher Sozialkulturen interpretiert.
description: Arbeit