cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of Protein intake and outcome of critically ill patients: analysis of a large international database using piece-wise exponential additive mixed models
Creators: name: Hartl, Wolfgang H.
name: Kopper, Philipp
name: Bender, Andreas
name: Scheipl, Fabian
name: Day, Andrew G.
name: Elke, Gunnar
name: Küchenhoff, Helmut
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Computational Biology

description: Additional file 1: Supplementary information and results.
Relationship between Intellectual Capital and Innovations: The Mediating Role of Organizational Capital (The case of Commercial Banks in Ethiopia)
Creators: name: Demissie, Asheber
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: The study was conducted with the aim of investigating the direct and indirect effect of intellectual capital on innovations considering organizational capital as a mediator in the Ethiopian commercial banking sector. Primary data was collected using a 5 item likert scaled questionnaire from 235 branch managersfrom282 expected sample size having a response rate of (83%). Data was tested in confirmatory factor analysis and it fulfills construct validity (both convergent and discriminant validity) using Analysis of Moment Structure (AMOS) version 20. A deductive and quantitative approach was followed to test the model. Empirical findings of the study show that, intellectual capital does not have a significant direct effect on product innovation with the exception of organizational capital. Organizational capital mediates the relationship between intellectual capital and innovations. Human, organizational and customer capital have a positive direct effect on process innovation while social capital has a negative direct effect. Human, customer and social capital do not have a significant direct effect on Ethiopian banking sector's product innovation.To becompetitivein the industry, managers should utilize the skills, competencies, and experiences of their employees through well designed learning, organizational culture and supportive organizational structure. Key words: intellectual capital, product innovation, process innovation
title: Nachhaltigkeitsengagement junger Muslim:innen: Motive, Chancen, Hindernisse
title: Sustainability Engagement of Young Muslim:ers: Motives, Opportunities, Obstacles
titleType: AlternativeTitle
Creators: name: Kılıç, Şeyma
name: Sponick, Sören
Publisher: name: Universität Osnabrück
Year: 2023
Subjects: subject: Islam
subject: Nachhaltigkeit
subject: Umwelt
subject: BNE
subject: Jugendliche
subject: Theologie
subject: Generation
subject: Jugendforschung
subject: 290 - Andere Religionen
subject: 11.80 - Islam: Allgemeines
subject: 43.00 - Umweltforschung, Umweltschutz: Allgemeines
subject: 73.84 - Umwelt und Kultur
subject: 71.35 - Kindersoziologie, Jugendsoziologie
subject: 80.51 - Religiöse Erziehung

description: Die Handreichung präsentiert die komprimierten Erkenntnisse aus dem zweijährigen Forschungsprojekt »Förderung und Entwicklung der Nachhaltigkeitsbildung bei muslimischen Jugendlichen in Niedersachsen« (FEMNI). In Teil eins werden das Forschungsprojekt, dessen zugrundeliegende Forschungsinteresse sowie das methodische Vorgehen beschrieben. Teil zwei präsentiert die die für Schule und Lehrkräfte, muslimische Gemeinden und Sozialarbeit sowie Zivilgesellschaft relevanten Projektergebnisse. Daraus werden in Teil drei Handlungsempfehlungen für die Praxis abgeleitet. Die Handreichung schließt mit der Praxisreflektion des Forschungsprojektes.
Sampling on the Sphere by Mutually Orthogonal Subspaces
Creators: name: Grupel, Uri
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: The purpose of this paper is twofold. First, we provide an optimal $Ω(\sqrt{n})$ bits lower bound for any two-way protocol for the Vector in Subspace Communication Problem which is of bounded total rank. This result complements Raz's $O(\sqrt{n})$ protocol, which has a simple variant of bounded total rank. Second, we present a plausible mathematical conjecture on a measure concentration phenomenon that implies an $Ω(\sqrt{n})$ lower bound for a general protocol. We prove the conjecture for the subclass of sets that depend only on $O(\sqrt{n})$ directions.
description: Symposium on Discrete Algorithms (2017)
Restrictions on the Coherence of the Ultrafast Optical Emission from an Electron-Hole-Pair Condensate
Creators: name: Olaya-Castro, A.
name: Quiroga, L.
name: Rodríguez, F. J.
name: Tejedor, C.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Single atom edge-like states via quantum interference
Creators: name: Pelegrí, G.
name: Polo, J.
name: Turpin, A.
name: Lewenstein, M.
name: Mompart, J.
name: Ahufinger, V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate how quantum interference may lead to the appearance of robust edge-like states of a single ultracold atom in a two-dimensional optical ribbon. We show that these states can be engineered either within the manifold of local ground states of the sites forming the ribbon, or of states carrying one unit of angular momentum. In the former case, we show that the implementation of edge-like states can be extended to other geometries, such as tilted square lattices. In the latter case, we suggest to use the winding number associated to the angular momentum as a synthetic dimension.
description: 5 pages, 5 figures
Economic Empowerment from a Gender Perspective: An Assessment of the Situations Informal Self-Employed Women and Support Interventions by Local Governments, A Case Study of Jimma Town
Creators: name: Hideto, Muluneh
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2008

description: Empowerment, commonly of the poor and/or women, is considered as a crosscutting issue in developmental work apropos poverty reduction and gender equality. Closely linked to this vista, the study is conducted with the main objective of cross-examining the local government's stab at incorporating gender perspective in economic empowerment endeavors. A particular emphasis is thus, given to examination of the panorama of self-employed women in the informal sector and their access to productive resources and assets. Thereupon, the status of the informal self- employed women is appraised apropos livelihood engagements and labor, access to relevant information, collective capabilities and its benefits, financial support and access to credit, and awareness on salient policies and individual agency. To comply with the objective of the study, data is collected from both the informal self-employed women and local government offices that are directly pursuing economic empowerment objectives. To this end, primary data is obtained through questionnaire survey, in-depth interview with local officials, and personal observation with some informal interviews. Secondary data are also collected from local offices and other sources. The study's finding shows that the local government's effort in incorporating gender perspective in to economic empowerment programmes is quite low, even though a relative improvement is exhibited. In particular, the self-employed women in the informal sector are economically disempowered as they are constrained by limited or poor access to productive assets. Furthermore, the local supports available are also the one that reinforce women's traditional engagements that hardly yield a better income to achieve growth and improvement. Besides, constraints including lack of working premise, working capital, credit access, excessive domestic responsibilities are found as some of the prominent factors that erode the earnings of the informal self-employed women. In general, to truly realize the empowerment of women and the poor women in the informal sector, a long way move forward must be made. Accordingly, to see a turnaround, policy implementers need to strictly adhere to existing policy and regulatory frameworks that enhances women's wellbeing apart from devising practical and feasible ways of unraveling the constraints of women engaging in activities with diminutive rewards
An Experimental Analysis of Asymmetric Power in Conflict Bargaining
Creators: name: Sieberg, Katri
name: Clark, David
name: Holt, Charles A.
name: Nordstrom, Timothy
name: Reed, William
Publisher: name: MDPI
Year: 2013
Subjects: bargaining
conflict
quantal response equilibrium
laboratory experiments

description: Demands and concessions in a multi-stage bargaining process are shaped by the probabilities that each side will prevail in an impasse. Standard game-theoretic predictions are quite sharp: demands are pushed to the precipice with nothing left on the table, but there is no conflict regardless of the degree of power asymmetry. Indeed, there is no delay in reaching an agreement that incorporates the (unrealized) costs of delay and conflict. A laboratory experiment has been used to investigate the effects of power asymmetries on conflict rates in a two-stage bargaining game that is (if necessary) followed by conflict with a random outcome. Observed demands at each stage are significantly correlated with power, as measured by the probability of winning in the event of disagreement. Demand patterns, however, are flatter than theoretical predictions, and conflict occurs in a significant proportion of the interactions, regardless of the degree of the power asymmetry. To address these deviations from the standard game-theoretic predictions, we also estimated a logit quantal response model, which generated the qualitative patterns that are observed in the data. This one-parameter generalization of the Nash equilibrium permits a deconstruction of the strategic incentives that cause demands to be less responsive to power asymmetries than Nash predictions.
Hochschild homology, and a persistent approach via connectivity digraphs
Creators: name: Caputi, Luigi
name: Riihimäki, Henri
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Topology (math.AT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 18G85, 16E40, 05C20, 55N31

description: We introduce a persistent Hochschild homology framework for directed graphs. Hochschild homology groups of (path algebras of) directed graphs vanish in degree $i\geq 2$. To extend them to higher degrees, we introduce the notion of connectivity digraphs and analyse two main examples; the first, arising from Atkin's $q$-connectivity, and the second, here called $n$-path digraphs, generalising the classical notion of line graphs. Based on a categorical setting for persistent homology, we propose a stable pipeline for computing persistent Hochschild homology groups. This pipeline is also amenable to other homology theories; for this reason, we complement our work with a survey on homology theories of digraphs.
description: Comments are welcome!
Close Correlation between the Magnetic Moments, Lattice Distortions, and Hybridization in LaMnO3 and La1xSrxMnO3 + delta
Creators: name: Koide, T.
name: Miyauchi, H.
name: Okamoto, J.
name: Sekine, T.
name: Shidara, T.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
The Role of Groups in Galaxy Evolution: compelling evidence of pre-processing out to the turnaround radius of clusters
Creators: name: Lopes, P. A. A.
name: Ribeiro, A. L. B.
name: Brambila, D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present clear and direct evidence of the pre-processing effect of group galaxies falling into clusters in the local Universe ($z \lesssim 0.1$). We start with a sample of 238 clusters, from which we select 153 with N$_{200} \ge$ 20. We considered 1641 groups within the turnaround radius ($\sim$ 5$\times$R$_{200}$) of these 153 clusters. There are 6654 {\it individual cluster galaxies} and 4133 {\it group galaxies} within this radius. We considered two control samples of galaxies, in isolated groups and in the field. The first comprises 2601 galaxies within 1606 {\it isolated groups}, and the latter has 4273 field objects. The fraction of star forming galaxies in infalling groups has a distinct clustercentric behavior in comparison to the remaining cluster galaxies. Even at $5 \times $R$_{200}$ the {\it group galaxies} already show a reduced fraction of star forming objects. At this radius, the results for the {\it individual cluster galaxies} is actually compatible to the field. That is strong evidence that the group environment is effective to quench the star formation prior to the cluster arrival. The group star forming fraction remains roughly constant inwards, decreasing significantly only within the cluster R$_{200}$ radius. We have also found that the pre-processing effect depends on the group mass (indicated by the number of members). The effect is larger for more massive groups. However, it is significant even for pairs an triplets. Finally, we find evidence that the time scale required for morphological transformation is larger than the one for quenching.
description: 7 pages, 4 figures, Accepted for publication as a Letter to the MNRAS
$\bar B \to D^{(*)} \ell \bar{X}$ decays in effective field theory with massive right-handed neutrinos
Creators: name: Datta, Alakabha
name: Liu, Hongkai
name: Marfatia, Danny
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We calculate the complete differential decay distributions for the $B$ meson decays, $\bar B \to D^{(*)} \ell \bar{X}$, to a massive right-handed (RH) neutrino in the low-energy effective field theory (LEFT) framework. We find that a massive RH neutrino does not introduce any new angular structures compared to the massless case, but can cause significant distortions in angular observables. We study the phenomenology of low-energy four-fermion operators permitted by the standard model effective field theory (SMEFT) extended with RH neutrinos (SMNEFT). We show that to explain the positive value of the difference in forward-backward asymmetries, $ΔA_{\text{FB}}\equiv A_{\text{FB}}^μ-A_{\text{FB}}^e$, tentatively inferred from Belle data, the RH neutrino must be massive. We also make predictions for $q^2$ dependent angular observables to motivate future measurements.
description: 12 pages, 4 figures, 3 tables. Version to appear as a Letter in PRD
Anomalous Quasiparticle Lifetime in Graphite
Creators: name: Benedict, Lorin X.
name: Cazalilla, Miguel A.
name: Echenique, Pedro M.
name: Rubio, Angel
name: Spataru, Catalin D.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Report about the 2nd Workshop on “African Forced Migration Studies in Germany” focusing on Peace and Forced Migration
Creators: name: Edler, Hannah
Publisher: name: Universität Osnabrück
Year: 2023
Subjects: subject: Forced Migration
subject: Peace
subject: Workshop
subject: 320 - Politik

description: The second workshop of the series “African Forced Migration Studies in Germany” placed the focus on peace and forced migration. Whereas Forced Migration Studies has, in general, intensively addressed the relationship between conflict and displacement, peace constitutes a neglected area in research. This workshop sought to contribute to filling this gap by exploring meanings of peace in African Forced Migration Studies. The following report summarizes key discussion points and outcomes.
title: Bodenpolitik und gewollter Leerstand
title: ist das Eigentumsrecht an nicht bewohnten Apartments in Top-Lagen schützenswert?
titleType: AlternativeTitle
Creators: name: Maurer, Astrid
Publisher: name: TU Dortmund
Year: 2023
Subjects: subject: Bodenpolitik
subject: Leerstand
subject: Akteure
subject: Eigentumstheorien
subject: Bodenpolitische Strategien
subject: 710
subject: Bodenpolitik
subject: Leerstand
subject: Eigentumstheorie

description: In the public perception, volitional vacancy is not yet sufficiently understood as a land policy problem. In the high-price segment of private residential property, volitional vacancy is closely linked to questioning the outcome of people amassing apartments in prime locations without spending much time there. It is after all their own private decision how they invest their money and what they do with their private property. In order to broaden the spectrum of future and innovative development potentials, a continuous and in-depth examination of developments relevant to the land market is required. This is precisely where this exploratory work comes in, helping to better understand a phenomenon that has been little studied to date - volitional vacancy. Volitional vacancy can have advantages and disadvantages for both the beneficiaries and those affected. The root of the land policy problem is not the phenomenon itself, but rather the interaction between the various actors involved in land policy. One group of actors, the owners, have unique and previously overlooked characteristics that contribute to the problem. As property owners, they value their freedom and the ability to make decisions regarding their land, yet they also have a responsibility to consider the greater good of the community. If landowners of residential properties leave their property unused or underused, they contriubute to housing scarcity and potentially increase tension on the housing markets. Such volitional vacant properties can be observed on many scales, from within individual cities to regions of entire countries. The central research question of this paper is: Is ownership of unoccupied housing in prime locations worth protecting? In summary, the answer is that intentional vacancy is protected under real estate law, but whether intentional vacancy in the wake of large-scale speculative investment projects is worth protecting is more controversial.
description: PhD Series InPlanning;
Kinematic Space and Wormholes
Creators: name: Zhang, Jian-dong
name: Chen, Bin
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The kinematic space could play a key role in constructing the bulk geometry from dual CFT. In this paper, we study the kinematic space from geometric points of view, without resorting to differential entropy. We find that the kinematic space could be intrinsically defined in the embedding space. For each oriented geodesic in the Poincaré disk, there is a corresponding point in the kinematic space. This point is the tip of the causal diamond of the disk whose intersection with the Poincaré disk determines the geodesic. In this geometric construction, the causal structure in the kinematic space can be seen clearly. Moreover, we find that every transformation in the $SL(2,\mathbb{R})$ leads to a geodesic in the kinematic space. In particular, for a hyperbolic transformation defining a BTZ black hole, it is a timelike geodesic in the kinematic space. We show that the horizon length of the static BTZ black hole could be computed by the geodesic length of corresponding points in the kinematic space. Furthermore, we discuss the fundamental regions in the kinematic space for the BTZ blackhole and multi-boundary wormholes.
description: 31 pages, 20 figures, published version
Shape shifting : night and darkness explored in visual art
Creators: name: Newey, Saffron.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The Effect Of Service Quality On Customer Satisfaction In Addis Ababa: Experience From Selected 3 And 4 Star Hotels
Creators: name: zeleke, yalew
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The role of service quality in the success of hotel businesses cannot be denied, the service quality asserted by the Addis Ababa hotel need to be studied. It is vital for the hotel directors and owners to have a good understanding on what precisely the customers desire. Identifying the dimensions of the service quality, and their relative importance for customers for three and four star category of hotel industry would definitely help managers in improving the service quality. The main objective of this research is to evaluate the effect of service quality on customer satisfaction of three and four star hotels in Addis Ababa by applying a modified SERVQUAL model called HOLSERV from the point of the three service quality dimension (employee behavior and appearance, tangibility and reliability) of the service delivered by the three and four star hotels in Addis Ababa. To achieve this objective, quantitative research design and causal research approach were used to analyze the data collected through a structured questionnaire from a sample of 384 hotel guests. These respondents were selected using non-probability convenience simple method and hotels were selected purposefully. The data collected through a questionnaire were analyzed using statistical tools such as mean, standard deviation, correlation and regression analysis via SPSS Version 20. The major finding of the study indicates, the employee behavior and appearance dimension can highly affect customer satisfaction, followed by reliability and tangibility. Based on the findings of the study, the researcher recommended that the owners or top management to improve quality services so as to satisfy customer's needs should hire professional, self-motivated, passionate employees who are capable to deal with customer and solve customer complaints and other issues in an effective manner, besides this continuous training should be provided. The study only addressed twelve three and four star rated hotels, which found in Addis Ababa this limits the generalizability of the study
Numerical simulation of TEM images for In(Ga)As/GaAs quantum dots with various shapes
Creators: name: Maltsi, Anieza
name: Niermann, Tore
name: Streckenbach, Timo
name: Tabelow, Karsten
name: Koprucki, Thomas
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
subject: semiconductors
subject: quantum dots
subject: TEM images
subject: electron wave propagation
subject: strain

description: We present a mathematical model and a tool chain for the numerical simulation of TEM images of semiconductor quantum dots (QDs). This includes elasticity theory to obtain the strain profile coupled with the Darwin–Howie–Whelan equations, describing the propagation of the electron wave through the sample. We perform a simulation study on indium gallium arsenide QDs with different shapes and compare the resulting TEM images to experimental ones. This tool chain can be applied to generate a database of simulated TEM images, which is a key element of a novel concept for model-based geometry reconstruction of semiconductor QDs, involving machine learning techniques.
CATS: Conditional Adversarial Trajectory Synthesis for Privacy-Preserving Trajectory Data Publication Using Deep Learning Approaches
Creators: name: Rao, Jinmeng
name: Gao, Song
name: Zhu, Sijia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: I.2

description: The prevalence of ubiquitous location-aware devices and mobile Internet enables us to collect massive individual-level trajectory dataset from users. Such trajectory big data bring new opportunities to human mobility research but also raise public concerns with regard to location privacy. In this work, we present the Conditional Adversarial Trajectory Synthesis (CATS), a deep-learning-based GeoAI methodological framework for privacy-preserving trajectory data generation and publication. CATS applies K-anonymity to the underlying spatiotemporal distributions of human movements, which provides a distributional-level strong privacy guarantee. By leveraging conditional adversarial training on K-anonymized human mobility matrices, trajectory global context learning using the attention-based mechanism, and recurrent bipartite graph matching of adjacent trajectory points, CATS is able to reconstruct trajectory topology from conditionally sampled locations and generate high-quality individual-level synthetic trajectory data, which can serve as supplements or alternatives to raw data for privacy-preserving trajectory data publication. The experiment results on over 90k GPS trajectories show that our method has a better performance in privacy preservation, spatiotemporal characteristic preservation, and downstream utility compared with baseline methods, which brings new insights into privacy-preserving human mobility research using generative AI techniques and explores data ethics issues in GIScience.
description: 9 figures, 4 figures
Iterative Adaptive Spectroscopy of Short Signals
Creators: name: Chowdhury, Avishek
name: Le, Anh Tuan
name: Weig, Eva M.
name: Ribeiro, Hugo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop an iterative, adaptive frequency sensing protocol based on Ramsey interferometry of a two-level system. Our scheme allows one to estimate unknown frequencies with a high precision from short, finite signals. It avoids several issues related to processing of decaying signals and reduces the experimental overhead related to sampling. High precision is achieved by enhancing the Ramsey sequence to prepare with high fidelity both the sensing and readout state and by using an iterative procedure built to mitigate systematic errors when estimating frequencies from Fourier transforms.
Additional file 1 of Effect of fixed orthodontic appliances on gingival status and oral microbiota: a pilot study
Creators: name: Marincak Vrankova, Zuzana
name: Rousi, Margarita
name: Cvanova, Michaela
name: Gachova, Daniela
name: Ruzicka, Filip
name: Hola, Veronika
name: Lochman, Jan
name: Izakovicova Holla, Lydie
name: Brysova, Alena
name: Borilova Linhartova, Petra
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1: Table S1. Literature review of studies focusing on the effect of fixed orthodontic appliances on oral microbiota, which were not included in the meta-analysis by Guo et al., 2017. Table S2. Correlations between the different taste preferences and changes in the oral environment of 30 patients. Table S3. The percentages of 3 selected cariogenic and 7 periodontal bacteria relative to the total prokaryotic DNA at two time points – T0 (before bonding of fixed orthodontic appliances) and T1 (till the end of 7th month after bonding of fixed orthodontic appliances) in 30 patients.
Negative temperature is cool for cooling
Creators: name: Damas, Gabriella G.
name: de Assis, Rogério J.
name: de Almeida, Norton G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work, we study an autonomous refrigerator composed of three qubits [Phys. Rev. Lett. 105, 130401 (2010)] operating with one of the reservoirs at negative temperatures, which has the purpose of cooling one of the qubits. We find the values of the lowest possible temperature that the qubit of interest reaches when fixing the relevant parameters, and we also study the limit for cooling the qubit arbitrarily close to absolute zero. We thus proceed to a comparative study showing that reservoirs at effective negative temperatures are more powerful than those at positive temperatures for cooling the qubit of interest.
Complete Minors in Complements of Non-Separating Planar Graphs
Creators: name: Fowler, Leonard
name: Li, Gregory
name: Pavelescu, Andrei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 05C10 (primary), 57M15 (secondary)

description: We prove that the complement of any non-separating planar graph of order $2n-3$ contains a $K_n$ minor, and argue that the order $2n-3$ is lowest possible with this property. To illustrate the necessity of the non-separating hypothesis, we give an example of a planar graph of order 11 whose complement does not contain a $K_7$ minor. We argue that the complements of planar graphs of order 11 are intrinsically knotted. We compute the Hadwiger numbers of complements of wheel graphs.
description: 13 pages, 8 figures
The Effect of Service Quality on Customer Based Brand Equity (A case of Commercial Bank of Ethiopia)
Creators: name: Sileshi, Hirut
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Brand equity is one of the crucial components that enable banks to get superior advantage over their competitors. This study will be intended to investigate the effect of service quality on customer based brand equity. So, the objective of this research will be: to analyze the effect of SERVQUAL on brand equity dimensions, to compare and evaluate each SERVQUAL dimensions in relation to brand equity dimensions, to analyze the level of performance of CBE regarding proper awareness and implementation of SERVQUAL dimensions, and to evaluate and review the position of customers associated with CBE brand equity. Furthermore, the finding of different researchers indicated that service quality dimensions are not equally important for achieving brand equity. The degree of importance is depending on the nature of the service and performance of the service provider. The service quality of banking industry in Ethiopia in general and CBE in particular demonstrate improvement but the degree of dependability, helpfulness, responsiveness (promptness) and availability and consistency of facilities such as ATM machine, outreaches of branch outlet and other modern technology is inadequate to gain customer based brand equity This study was conducted on customers of CBE in selected branches of Addis Ababa district. In connection to this, structured questionnaire have been distributed for to 384 randomly selected samples but analysis was made based on the data collected from 328 respondents. Analysis and interpretation of the data was conducted by using descriptive and inferential statistical tools with the help of SPSS. The finding of this research clearly states that Service quality is considered as a significant instrument for a firm's great effort in order to differentiate itself from its competitors and effective implementation of those five dimensions of service quality have a significant effect on customer based brand equity. Service quality is vital to the development and infuses strong and dominant brands because it enhances perceived superiority of the brands or customer based brand equity on side of existing and potential customers and helps to distinguish brands from other similar service providers in competitive markets. Key words: SERVQUAL, brand equity, SERVQUAL dimension, banking industry
Resistivity scaling in metallic thin films and nanowires due to grain boundary and surface roughness scattering
Creators: name: Moors, Kristof
name: Sorée, Bart
name: Magnus, Wim
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A modeling approach, based on an analytical solution of the semiclassical multi-subband Boltzmann transport equation, is presented to study resistivity scaling in metallic thin films and nanowires due to grain boundary and surface roughness scattering. While taking into account the detailed statistical properties of grains, roughness and barrier material as well as the metallic band structure and quantum mechanical aspects of scattering and confinement, the model does not rely on phenomenological fitting parameters.
description: 11 pages, 7 figures, accepted for publication in Microelectronic Engineering edition on Materials for Advanced Metallization
Propagation of a fast radio burst through a birefringent relativistic plasma
Creators: name: Kumar, Pravir
name: Shannon, Ryan M.
name: Lower, Marcus E.
name: Deller, Adam T.
name: Prochaska, J. Xavier
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The study of impulsive astrophysical radio emission makes it possible to probe the intervening plasma between the emission source and the Earth. In cold electron-ion plasmas, the circular propagating wave modes primarily alter the linear polarization plane that scales with the inverse-square of the emission frequency. In relativistic plasmas, the wave modes are elliptically polarized, and it is possible to convert linearly polarized emission into circular and vice versa. Fast radio bursts (FRBs) enable the study of not only the electron-ion plasma of the intergalactic medium but potentially the extreme magneto-ionic medium in which these intense pulses are produced. Here we report on the polarimetric analysis of a repeat burst from the FRB 20201124A source. The burst displayed a significant frequency-dependent circularly polarized component, unlike other bursts from this source or any other FRB found to date. We model the frequency dependence of the circular polarization using a phenomenological generalized Faraday rotation framework. We find that the observed circular polarization in the burst can be adequately explained by the propagation of an initially linearly polarised burst signal through a relativistic plasma along the line of sight from the progenitor.
description: 8 pages, 4 figures; accepted for publication in Physical Review D
Using Koopmans' theorem for constructing basis sets: Approaching high Rydberg excited states of lithium with a compact Gaussian basis
Creators: name: Šmydke, Jan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: For accurate ab initio description of Rydberg excited states the study suggests generating the appropriate diffuse basis functions by a cheap variational optimization of virtual orbitals of the corresponding ion core. By following this approach, dozens of converged correlated lithium Rydberg states, namely all the states up to 24S, 25P, 14D, 16F and 16G, not yet achieved by other ab initio approaches, could be obtained at the EOM-CCSD level of theory with compact and mostly state-selective contracted Gaussian basis sets. Despite its small size and Gaussian character, the optimized basis leads to highly accurate excitation energies that differ merely in the order of meV from the reference state-of-the-art explicitly correlated Gaussian method and even surpass Full-CI results on Slater basis by an order of magnitude.
The Effect Of Internal Marketing On Customer Satisfaction: The Case Of Commercial Bank Of Ethiopia (CBE)
Creators: name: Solomon, Mengistu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The purpose of this paper is to explore the effect of internal marketing on customers' satisfaction the case of Commercial Bank of Ethiopia. The study was descriptive and quantitative in its approach. A structured questionnaire was developed. The hypotheses were simultaneously tested on a sample of 504 out of 645 questioners distributed to customers and employees of the bank by selecting fourteen branches in Addis Ababa based on convenience sampling technique, giving a valid response rate of 78 percent. Several analytical techniques were used to assess the relationships among the variables under investigation such as Pearson correlation, multiple linear regressions. The application used to analyze and examine the hypotheses is the SPSS V20. The findings of this study have shown a significant effect of internal marketing dimensions on customer satisfaction at the level of (α ≤ 0.05) The mean scores of employees perception of the internal marketing program of the bank range from 3.48-4.12 indicating that it is more than average. Overall satisfaction on the internal marketing program of the bank has resulted a mean score of 3.14 which shows there is average satisfaction on the implementation of the identified IM elements. The entire IM dimension in this study is positively correlated with customer satisfaction. The regression result shows that the adjusted R Square value was .857 and this implied that IM dimensions (predictors) accounts for 85.7% of the variation in customer satisfaction which is significant and 14.3% are other extraneous variables that can affect customer satisfaction. Only job quality and reward, promotional activities and benchmarking of benefit packages are predictors of customers satisfaction with beta value of .955, .669 , and .818 respectively that have positive contribution for variation in customer satisfaction .The results are useful in identifying areas for strategic focus to help CBE to evaluate and implement internal marketing programs for the satisfaction of its customers to maintain its market leadership in the industry. As evident from the finding section that the study was conducted in Ethiopia only, applicability of the results in other countries may result differently. Further, as the study is conducted in the banking industry, application of the same in other industries, like; education and health may not come up with the same findings.
On the integral Hodge conjecture for varieties with trivial Chow group
Creators: name: Diaz, Humberto A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We obtain examples of smooth projective varieties over $\mathbb{C}$ that violate the integral Hodge conjecture and for which the total Chow group is of finite rank. Moreover, we show that there exist such examples defined over number fields.
description: submitted; comments welcome
Lessons Learned from the 787 Dreamliner Issue on Lithium-Ion Battery Reliability
Creators: name: Williard, Nicholas
name: He, Wei
name: Hendricks, Christopher
name: Pecht, Michael
Publisher: name: MDPI
Year: 2013
Subjects: lithium-ion
battery
reliability
safety
aviation
Dreamliner
risk

description: On 16 January 2013, all Boeing 787 Dreamliners were indefinitely grounded due to lithium-ion battery failures that had occurred in two planes. Subsequent investigations into the battery failures released through the National Transportation Safety Board (NTSB) factual report, the March 15th Boeing press conference in Japan, and the NTSB hearings in Washington D.C., never identified the root causes of the failures—a major concern for ensuring safety and meeting reliability expectations. This paper discusses the challenges to lithium-ion battery qualification, reliability assessment, and safety in light of the Boeing 787 battery failures. New assessment methods and control techniques that can improve battery reliability and safety in avionic systems are then presented.
Beneficiary Impact Assessment of Demobilization and Reintegration Program: the Case of Dansha Re-settlements Project
Creators: name: Kidanemariam, Aklilu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2008

description: The purpose of this study is to assess the demobilization and reintegration of ex-combatants in Dansha resettlement project. It is to make impact assessments on the ex-combatants' economic independence and their subsequent acceptance by the host community. The study was highly important to examine the potential risks of the resettlement, which is taken as a means to reintegrate ex-combatants, and draw possible lessons to prevent these risks. To meet the objective of the study, both primary and secondary data were used. For the primary data, key informants were interviewed and questionnaires were distributed to randomly selected 120 settlers and focus group discussions were undertaken. The data were analyzed using descriptive and qualitative techniques. The findings of the study clearly show that the settlers are reintegrated economically, socially and politically in a sustainable way. The economic impact assessment of the program revealed that the settlers were provided land for farming and housing facility. They also had access to credit, pension scheme, and other transitional subsistence support such as farming tools, seeds and other extension packages. Like wise, the settlers are now economically reintegrated, having the capacity to produce sesame for cash and sorghum for food. Livestock breeding and off-farm activities also helped them to have sustainable livelihood in the area. The social impact assessment also indicates that settlers have got sufficient social services, that are access to health, potable water and education which are comparatively adequate to support the settlers. The study also shows that settlers have close relationships with host community and high involvement in political and social affairs of the society. Therefore, it is inferred that, existence of sufficient social infrastructure, access to credit and market, with potential area for farming and livestock are observed to be potential strengths that enabled settlers to be successful. On top of that, the close relationship with the host community and among themselves encouraged the achievement of sustainable reintegration. The study concludes that resettlement scheme can be an effective way of reintegrating ex-combatants. For the success of such type of resettlement, it needs to be guided by well-organized documents, committed government, motivated staff and willing beneficiaries. It also should be based on adequate and reliable socio-economic study with proper implementation and monitoring. On top of that, the consent of the host community with the above mentioned factors is decisive for successful reintegration of ex-combatants. The study then recommends that clear and consistent orientation on benefits and modalities of reintegration should be stated appropriately. It also recommends better training on agricultural extension, and veterinary services should be realized
التوجه نحو استغلال الطاقات الخضراء كسبيل لتحقيق التنمية المستدامة بالجزائر
Creators: name: خلوفي, سفيان
Publisher: name: figshare
Year: 2023
Subjects: Ecological economics
Heterodox economics
Comparative economic systems
Other economics not elsewhere classified

description: تعد الطاقات المتجددة من الطاقات الحديثة الاستعمال إذ أن الالتفات لهذه الطاقات جاء نتيجة الاضطرابات والكوارث البيئية التي لحقت بالكوكب إلى جانب اقتراب نفاذ المخزون من الطاقات التقليدية بالعالم، كما تعتبر مدخلا نحو تحقيق التنمية المستدامة بأبعادها، فعلاقة هذين المصطلحين تتميز بالارتباط الشديد إذ أن الاستخدام الرشيد والكفء للطاقات المتجددة يحقق تنمية مستدامة فعلية لما توفره هذه الطاقات من استخدامات نظيفة صديقة للبيئة، لذلك هدفت دراستنا لتحديد كل من المفهومين (الطاقات المتجددة- التنمية المستدامة) وتوضيح طبيعة العلاقة بينهما، إلى جانب توضيح الطريق الصحيحة والمثالية لاستغلال الطاقة المتجددة بغية الوصول إلى التنمية المستدامة، كما سلطنا الضوء على واقع الطاقات المتجددة بالجزائر والبرامج الوطنية التي اهتمت بها والى آخر الإحصائيات بخصوص الجزائر واستعمالاتها للطاقات المتجددة بدل الطاقات التقليدية، ولقد توصلنا من خلال ذلك لوجود علاقة قوية تربط الطاقات المتجددة بالتنمية المستدامة إذ تعمل الطاقات المتجددة على الحفاظ على البيئة من خلال استعمالاتها التي لا تضر بالبيئة وتخفض مستوى استغلال الكربون محققة بذلك تنمية مستدامة. الكلمات المفتاحية: الطاقات المتجددة (الطاقة الشمسية، طاقة الرياح، الطاقة الهيدروليكية، الطاقة الحرارية، الطاقة الحيوية)، التنمية المستدامة، البرنامج الوطني لتطوير الطاقات المتجددة. Renewable energies are considered to be one of the most modern uses of energy. The attention to these energies is the result of the environmental disasters and disasters that have afflicted the planet, as well as the entry into the world of the traditional energy resources. It is also an approach to achieving sustainable development in its dimensions. For renewable energies, achieves sustainable sustainable development for the benefit of these clean and environmentally friendly uses. Therefore, our study aimed at identifying both the concepts of renewable energies and sustainable development, clarifying the nature of their relationship, We have highlighted the reality of the renewable energies in Algeria and the national programs that have been taken care of, and the latest statistics on Algeria and its uses of renewable energies instead of traditional energies. We have thus reached a strong relationship between renewable energies and sustainable development. Renewable energies work to preserve the environment through its environmentally friendly uses and reduce the level of carbon exploitation, thereby achieving sustainable development . Key words: renewable energies (solar energy, wind power, hydropower, thermal energy, bioenergy), Sustainable Development, National Renewable Energy Development Program.
Highest Cusped Waves for the Burgers-Hilbert equation
Creators: name: Dahne, Joel
name: Gómez-Serrano, Javier
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper we prove the existence of a periodic highest, cusped, traveling wave solution for the Burgers-Hilbert equation $f_{t} + f f_{x} = H[f]$ and give its asymptotic behaviour at $0$. The proof combines careful asymptotic analysis and a computer-assisted approach.
description: 44 pages, 3 figures
Superconductivity in the Filled Cage Compounds Ba6Ge25 and Ba4Na2Ge25
Creators: name: Carrillo-Cabrera, W.
name: Grosche, F. M.
name: Langhammer, C.
name: Paschen, S.
name: Yuan, H. Q.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters