cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Determinants of Deposit in Ethiopian Private Commercial Banks
Creators: name: Hailemariam, Dereje
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Understanding the nature of national savings behavior is critical in designing policies to promote savings and investment which in turn enhance economic growth through capital formation. This paper empirically examines the determinants of savings in private commercial banks of Ethiopia for the 2001-2015 periods. From total of sixteen private Banks which are engaged in commercial activities, six selected based on the historical time formation of banks. The conceptual framework for this study is originally derived from Life-Cycle model and appropriately modified to accommodate the peculiarities of a developing country and builds on the existing cross-country literature on determinant of saving mobilization. The researcher adopted Quantitative research approach. Bank specific and macroeconomic variables were analyzed by using the balanced panel fixed effect regression model. Different diagnostic tests (test for assumption of Homoscedasticity, Autocorrelation, Normality, average value of the error is zero and independent variables are non-stochastic) were conducted to check the appropriateness of the model. The results reveal that disposable income, real GDP growth, branch expansion, are positively and statistically significant on bank deposit growth; whereas, loan to deposit ratio (bank's liquidity)influence is negatively and statistically significant on bank deposit growth. Deposit rate and profitability had insignificant positive influence on bank deposit growth. Whereas population growth and capital to loan ratio (capital adequacy) had insignificant negative influence on bank deposit growth. The study implies that stimulation of economic growth is most important factors that affect bank deposit growth. The research recommends that private commercial banks should have to intensify branch expansion to areas where there are potential deposit sources even to remote locations .moreover, private commercial banks required to have enough liquid assets to meet the demand for cash outflows so as to generate and sustain public confidence of the depositors. Keywords: Private commercial Banks, Bank deposit, Regression Analysis
High energy neutrinos produced in the accretion disks by neutrons from nuclei disintegrated in the AGN jets
Creators: name: Bednarek, W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate the consequences of acceleration of nuclei in jets of active galaxies not far from the surface of an accretion disk. The nuclei can be accelerated in the re-connection regions in the jet and/or at the jet boundary, between the relativistic jet and its cocoon. It is shown that the relativistic nuclei can efficiently fragment onto specific nucleons in collisions with the disk radiation. Neutrons, directed towards the accretion disk, take a significant part of energy from the relativistic nuclei. These neutrons develop a cascade in the dense accretion disk. We calculate the neutrino spectra produced in such hadronic cascade within the accretion disk. We propose that the neutrinos produced in such scenario from the whole population of super-massive black holes in active galaxies can explain the extragalactic neutrino background recently measured by the IceCube neutrino detector, provided that $5\%$ fraction of galaxies is AGN and a few percent of neutrons reach the accretion disk. It is predicted that the neutrino signals in the present neutrino detectors, produced in terms of such a model, are not expected to be detectable even from the nearby radio galaxies similar to M87.
description: 13 pages, 3 figures; accepted for publication in ApJ
Coordination and Antenna Domain Formation in Cloud-RAN systems
Creators: name: Ghauch, Hadi
name: Rahman, Muhammad Mahboob Ur
name: Imtiaz, Sahar
name: Gross, James
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study here the problem of Antenna Domain Formation (ADF) in cloud RAN systems, whereby multiple remote radio-heads (RRHs) are each to be assigned to a set of antenna domains (ADs), such that the total interference between the ADs is minimized. We formulate the corresponding optimization problem, by introducing the concept of \emph{interference coupling coefficients} among pairs of radio-heads. We then propose a low-overhead algorithm that allows the problem to be solved in a distributed fashion, among the aggregation nodes (ANs), and establish basic convergence results. Moreover, we also propose a simple relaxation to the problem, thus enabling us to characterize its maximum performance. We follow a layered coordination structure: after the ADs are formed, radio-heads are clustered to perform coordinated beamforming using the well known Weighted-MMSE algorithm. Finally, our simulations show that using the proposed ADF mechanism would significantly increase the sum-rate of the system (with respect to random assignment of radio-heads).
description: 7 pages, IEEE International Conference on Communications 2016 (ICC 2016)
Fine abrasions of ceramics
Creators: name: Aghan, Robert Leslie.
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.
Structural and magnetic properties of Co-N thin films deposited using magnetron sputtering at 523 K
Creators: name: Pandey, Nidhi
name: Gupta, Mukul
name: Gupta, Rachana
name: Chakravarty, Sujay
name: Shukla, Neeraj
name: Devishvili, Anton
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, we studied cobalt nitride (Co-N) thin films deposited using a dc magnetron sputtering method at a substrate temperature (\Ts) of 523\,K. We find that independent of the reactive gas flow (\pn) used during sputtering, the phases of Co-N formed at this temperature seems to be identical having N \pat~$\sim$5. This is contrary to Co-N phases formed at lower \Ts. For \Ts$\sim$300\,K, an evolution of Co-N phases starting from Co(N)$\rightarrow$\tcn$\rightarrow$Co$_3$N$\rightarrow$CoN can be seen as \pn increases to 100\p, whereas when the substrate temperature increases to 523\,K, the phase formed is a mixture of Co and \tcn, independent of the {\pn} used during sputtering. We used x-ray diffraction (XRD) to probe long range ordering, x-ray absorption spectroscopy (XAS) at Co absorption edge for the local structure, Magneto-optical Kerr e ffect (MOKE) and polarized neutron reflectivity (PNR) to measure the magnetization of samples. Quantification of N \pat~was done using secondary ion mass spectroscopy (SIMS). Measurements suggest that the magnetic moment of Co-N samples deposited at 523\,K is slightly higher than the bulk Co moment and does not get affected with the \pn~used for reactive sputtering. Our results provide an important insight about the phase formation of Co-N thin films which is discussed in this work.
description: 6 pages, 5 figures
Dark matter halo cores and the tidal survival of Milky Way satellites
Creators: name: Errani, Raphaël
name: Navarro, Julio F.
name: Peñarrubia, Jorge
name: Famaey, Benoit
name: Ibata, Rodrigo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The cuspy central density profiles of cold dark matter (CDM) haloes make them highly resilient to disruption by tides. Self-interactions between dark matter particles, or the cycling of baryons, may result in the formation of a constant-density core which would make haloes more susceptible to tidal disruption. We use N-body simulations to study the evolution of NFW-like "cored" subhaloes in the tidal field of a massive host, and identify the criteria and timescales for full tidal disruption. Our results imply that the survival of Milky Way satellites places constraints on the sizes of dark matter cores. Indeed, we find that no subhaloes with cores larger than 1 per cent of their initial NFW scale radius can survive for a Hubble time on orbits with pericentres <10 kpc. A satellite like Tucana 3, with pericentre ~3.5 kpc, must have a core size smaller than ~2 pc to survive just three orbital periods on its current orbit. The core sizes expected in self-interacting dark matter (SIDM) models with a velocity-independent cross section of 1 cm^2/g seem incompatible with ultra-faint satellites with small pericentric radii, such as Tuc 3, Seg 1, Seg 2, Ret 2, Tri 2, and Wil 1, as these should have fully disrupted if accreted on to the Milky Way >10 Gyr ago. These results suggest that many satellites have vanishingly small core sizes, consistent with CDM cusps. The discovery of further Milky Way satellites on orbits with small pericentric radii would strengthen these conclusions and allow for stricter upper limits on the core sizes.
description: 13 pages, 13 figures, minor edits to match accepted version
Thermal Tomography of Asteroid Surface Structure
Creators: name: Harris, Alan
name: Drube, Line
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Knowledge of the surface thermal inertia of an asteroid can provide insight into surface structure: porous material has a lower thermal inertia than rock. We develop a means to estimate thermal inertia values of asteroids and use it to show that thermal inertia appears to increase with spin period in the case of main-belt asteroids (MBAs). Similar behavior is found on the basis of thermophysical modeling for near-Earth objects (NEOs). We interpret our results in terms of rapidly increasing material density and thermal conductivity with depth, and provide evidence that thermal inertia increases by factors of 10 (MBAs) to 20 (NEOs) within a depth of just 10 cm. Our results are consistent with a very general picture of rapidly changing material properties in the topmost regolith layers of asteroids and have important implications for calculations of the Yarkovsky effect, including its perturbation of the orbits of potentially hazardous objects and those of asteroid family members after the break-up event. Evidence of a rapid increase of thermal inertia with depth is also an important result for studies of the ejecta-enhanced momentum transfer of impacting vehicles ("kinetic impactors") in planetary defense.
description: 15 pages, 8 figures, accepted for publication in the Astrophysical Journal
The Implementation Of The Visual EEG Signals Classification System Based on The Deep Neural Network
Creators: name: OSMAN ABDOULSALAM AWAIS
Publisher: name: Zenodo
Year: 2023
Subjects: EEG
signal classification
deep neural networks
convolutional neural networks
feature extraction

description: This undergraduate thesis presents the development and evaluation of a visual EEG signal classification system based on deep neural networks. The main objectives of this research were to study existing EEG signal classification techniques, develop a deep neural network-based EEG signal classification system, evaluate its performance, and analyze spatial and temporal features of the EEG signals. The proposed system utilizes a Convolutional Neural Network (CNN) to classify visual stimuli evoked by EEG signals recorded from subjects viewing images from a subset of the ImageNet dataset. The EEG data was pre-processed using band-pass filtering, Independent Component Analysis (ICA), and artifact removal. Feature extraction techniques, such as time-frequency analysis using Morlet wavelet, power spectral density (PSD), and Common Spatial Patterns (CSP), were employed. The performance of the proposed system was compared to traditional machine learning techniques, including Linear Discriminant Analysis (LDA), Support Vector Machine (SVM), and Gradient Boosting Classifier (GBT). The proposed system achieved an accuracy of 76%, with precision, recall, and F1-score values of 0.77, 0.76, and 0.76, respectively, demonstrating its potential to contribute to more accurate and reliable EEG-based clinical diagnosis and treatment of neurological disorders. Future studies may explore incorporating advanced deep learning techniques or multimodal data sources to further enhance the classification performance of the system.
Determinants of Financial Distress: the Case of Microfinance Institutions in Ethiopia
Creators: name: Hailemariam, Haregewayin
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Micro-Finance Institutions (MFIs) play a vital role in the financial system by providing financial services to those who cannot access from the conventional banking service in developing countries. The main objective of this study was to examine the determinants of financial distress in the case of selected MFIs in Ethiopia. Balanced fixed effect panel regression was used for the data of ten microfinance institutions in the sample covered the period from 2006 to 2015 from the total population of thirty five microfinance institutions operating in the country . The study used the Altman's Z score of the MFIs as the proxy of financial distress to measure financial healthiness of MFIs. The study finds that capital adequacy, earning ability, liquidity and microfinance institutions age have significant negative impact on financial distress of MFIs, where as portfolio at risk greater than 30 days has significant positive influence on financial distress of MFIs. Operational efficiency of MFIs which is measured by operating expense to gross loan portfolio has negative influence on financial health of MFIs but statstically insignificant. Macro economic factors GDP and inflation have no significant influence on financial distress of MFIs in Ethiopia. Based on the findings, the study recommends that PAR>30 days which is found to negatively influencing the financial health of the MFIs need to be closely watched and taken care of. Thus, the managements of MFIs ensure strict adherence to regular loan monitoring and also credit policies of MFIs must be regularly updated. Moreover, managements of MFIs should give great emphasis in properly managing capital to asset ratio. Regulators and policy makers also need to set the minimum capital adequacy requirements for MFIs because well capitalized MFIs are more flexible in dealing with problems arising from unexpected losses. Keywords: Financial Distress, MFIs, Altman's Z score
Path to Low Cost Microfluidics
Creators: name: Govyadinov, Alexander N.
name: Torniainen, Erik
name: Kornilovitch, Pavel
name: Markel, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The paper describes a novel concept for a low cost microfluidic platform utilizing materials and processes used in low cost thermal inkjet printing. The concept re-purposes the jetting elements to create pumps, mixers, and valves all necessary components for the transport of fluids in a broad range of microfluidic applications.
description: 8 pages, 17 figures, 17 references. Lecture presented at 31st International Conference on Digital Printing Technologies (NIP), September 27 - October 1, 2015, Portland, Oregon, USA, http://www.imaging.org/ist/conferences/nip_df/NIP31_DF2015_PreliminaryProgram.pdf
A statistical representation of the cosmological constant from finite size effects at the apparent horizon
Creators: name: Viaggiu, Stefano
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we present a statistical description of the cosmological constant in terms of massless bosons (gravitons). To this purpose, we use our recent results implying a non vanishing temperature ${T_Λ}$ for the cosmological constant. In particular, we found that a non vanishing $T_Λ$ allows us to depict the cosmological constant $Λ$ as composed of elementary oscillations of massless bosons of energy $\hbarω$ by means of the Bose-Einstein distribution. In this context, as happens for photons in a medium, the effective phase velocity $v_g$ of these massless excitations is not given by the speed of light $c$ but it is suppressed by a factor depending on the number of quanta present in the universe at the apparent horizon. We found interesting formulas relating the cosmological constant, the number of quanta $N$ and the mean value $\overlineλ$ of the wavelength of the gravitons. In this context, we study the possibility to look to the gravitons system so obtained as being very near to be a Bose-Einstein condensate. Finally, an attempt is done to write down the Friedmann flat equations in terms of $N$ and $\overlineλ$.
description: Accepted for publication in General Relativity and Gravitation, Volume 48, Issue 7, July 2016
Location-aware green energy availability forecasting for multiple time frames in smart buildings: The case of Estonia
Creators: name: Hatamian, Mehdi
name: Panigrahi, Bivas
name: Dehury, Chinmaya Kumar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Renewable Energies (RE) have gained more attention in recent years since they offer clean and sustainable energy. One of the major sustainable development goals (SDG-7) set by the United Nations (UN) is to achieve affordable and clean energy for everyone. Among the world's all renewable resources, solar energy is considered as the most abundant and can certainly fulfill the target of SDGs. Solar energy is converted into electrical energy through Photovoltaic (PV) panels with no greenhouse gas emissions. However, power generated by PV panels is highly dependent on solar radiation received at a particular location over a given time period. Therefore, it is challenging to forecast the amount of PV output power. Predicting the output power of PV systems is essential since several public or private institutes generate such green energy, and need to maintain the balance between demand and supply. This research aims to forecast PV system output power based on weather and derived features using different machine learning models. The objective is to obtain the best-fitting model to precisely predict output power by inspecting the data. Moreover, different performance metrics are used to compare and evaluate the accuracy under different machine learning models such as random forest, XGBoost, KNN, etc.
description: The current version is submitted to Elsevier Solar Energy and is under consideration for future publication
On the optimization of hydraulic control system response
Creators: name: La Brooy, Roger C.
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.
Multifunctional all-dielectric nano-optical systems using collective multipole Mie resonances: Towards on-chip integrated nanophotonics
Creators: name: Chattaraj, Swarnabha
name: Madhukar, Anupam
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present an analysis of the optical response of a class of on-chip integrated nano-photonic systems comprising all-dielectric building block based multifunctional light manipulating units (LMU) integrated with quantum dot (QD) light sources. The multiple functions (such as focusing excitation light, QD emission rate enhancement, photon guidance, and lossless propagation) are simultaneously realized using the collective Mie resonances of dipole and higher order multipole modes of the dielectric building blocks (DBBs) constituting a single structural unit, the LMU. Using analytical formulation based on Mie theory we demonstrate enhancement of the excitation light simultaneously with the guiding and propagation of the emitted light from a QD emitter integrated with the DBB based LMU. The QD-DBB integrated structures can serve as the basic element for building nano-optical active circuits for optical information processing in both classical and quantum realms.
description: 19 pages, 7 figures
Determinants of Growth of Employees' Savings and Credit Associations in Ethiopia: the Case of Addis Ababa University, Ethio Telecom and Ethiopian Airlines Employees' Savings and Credit Associations
Creators: name: Kolcha, Tariku
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: Employees' savings and credit associations (ESCAs) in Ethiopia have been investing over the years with the objective of maximizing their wealth. As is the case with all investments, wealth maximization is a key objective whenever ESCAs have chosen an investment avenue from a universe of possible investment vehicles. The failure to build enough ESCAs' wealth, through accumulation of institutional capital, is attributable to weak financial stewardship, inappropriate capital structure and imprudent funds allocation strategy. This study assessed financial practice as a determinant of the growth of employees' savings and credit association with a view of improving the situation for socio-economic development. This study used descriptive design and data was collected from the respondents and financial records of the three ESCAs using a questionnaire and document review tool, and analyzed using both descriptive and inferential statistics. The study findings indicated that growth of ESCAs depended on financial stewardship, capital structure and funds allocation strategy. The study recommends that ESCAs credit policies should be the one that would enhance the evaluation of loan applications; ESCAs should make loan provisions to promote safety of funds, and apply optimum financing mix in their capital structure
Combining micro- and macroscopic probes to untangle single-ion and spatial exchange anisotropies in a $S = 1$ quantum antiferromagnet
Creators: name: Brambleby, Jamie
name: Manson, Jamie L.
name: Goddard, Paul A.
name: Stone, Matthew B.
name: Johnson, Roger D.
name: Manuel, Pascal
name: Villa, Jacqueline A.
name: Brown, Craig M.
name: Lu, Helen
name: Chikara, Shalinee
name: Zapf, Vivien
name: Lapidus, Saul H.
name: Scatena, Rebecca
name: Macchi, Piero
name: Chen, Yu-sheng
name: Wu, Lai-Chin
name: Singleton, John
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The magnetic ground state of the quasi-one-dimensional spin-1 antiferromagnetic chain is sensitive to the relative sizes of the single-ion anisotropy ($D$) and the intrachain ($J$) and interchain ($J'$) exchange interactions. The ratios $D/J$ and $J'/J$ dictate the material's placement in one or other of three competing phases: a Haldane gapped phase, a quantum paramagnet and an XY-ordered state, with a quantum critical point at their junction. We have identified [Ni(HF)$_2$(pyz)$_2]$SbF$_6$, where pyz = pyrazine, as a candidate in which this behavior can be explored in detail. Combining neutron scattering (elastic and inelastic) in applied magnetic fields of up to 10~tesla and magnetization measurements in fields of up to 60~tesla with numerical modeling of experimental observables, we are able to obtain accurate values of all of the parameters of the Hamiltonian [$D = 13.3(1)$~K, $J = 10.4(3)$~K and $J' = 1.4(2)$~K], despite the polycrystalline nature of the sample. Density-functional theory calculations result in similar couplings ($J = 9.2$~K, $J' = 1.8$~K) and predict that the majority of the total spin population of resides on the Ni(II) ion, while the remaining spin density is delocalized over both ligand types. The general procedures outlined in this paper permit phase boundaries and quantum-critical points to be explored in anisotropic systems for which single crystals are as yet unavailable.
Dependence of fusion on isospin dynamics
Creators: name: Godbey, K.
name: Umar, A. S.
name: Simenel, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We introduce a new microscopic approach to calculate the dependence of fusion barriers and cross-sections on isospin dynamics. The method is based on the time-dependent Hartree-Fock theory and the isoscalar and isovector properties of the energy density functional (EDF). The contribution to the fusion barriers originating from the isoscalar and isovector parts of the EDF is calculated. It is shown that for non-symmetric systems the isovector dynamics influence the sub-barrier fusion cross-sections. For most systems this results in an enhancement of the sub-barrier cross-sections, while for others we observe differing degrees of hindrance. We use this approach to provide an explanation of recently measured fusion cross sections which show a surprising enhancement at low $E_\mathrm{c.m.}$ energies for the system $^{40}$Ca+$^{132}$Sn as compared to the more neutron-rich system $^{48}$Ca+$^{132}$Sn, and discuss the dependence of sub-barrier fusion cross-sections on transfer.
description: 5 pages, 4 figures
Passport to Success Trial Protocol
Creators: name: Qualter, Pamela
name: Thompson, Alexander
name: O'Brien, Annie
name: Hamilton, Suzanne
name: Demkowicz, Ola
name: Boehnke, Jan R.
name: Panayiotou, Margarita
name: Burke, Lauren
name: Santos, Joao Garcez Aurelio Dos
name: Lu, Yizhuo
name: Humphrey, Neil
name: Lau, Jennifer
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Passport to Success
subject: SEL
subject: Protocol

description: This is the Trial Protocol for the Passport to Success Trial, as originally submitted to the Journal "Trials" on 26.04.2023. The full title of the Trial Protocol is: "Examining the impact of a universal social and emotional learning intervention (Passport) on internalising symptoms and other outcomes among children, compared to the usual school curriculum: Study protocol for a school-based cluster randomised trial".
Solving the Dynamic Correlation Problem of the Susceptible-Infected-Susceptible Model on Networks
Creators: name: Cai, Chao-Ran
name: Wu, Zhi-Xi
name: Chen, Michael Z. Q.
name: Holme, Petter
name: Guan, Jian-Yue
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The Susceptible-Infected-Susceptible model is a canonical model for emerging disease outbreaks. Such outbreaks are naturally modeled as taking place on networks. A theoretical challenge in network epidemiology is the dynamic correlations coming from that if one node is occupied, or infected (for disease spreading models), then its neighbors are likely to be occupied. By combining two theoretical approaches---the heterogeneous mean-field theory and the effective degree method---we are able to include these correlations in an analytical solution of the SIS model. We derive accurate expressions for the average prevalence (fraction of infected) and epidemic threshold. We also discuss how to generalize the approach to a larger class of stochastic population models.
description: 24 pages, many figure. Some relevant notes and remarks are added
Evaluating recent methods to overcome spatial confounding
Creators: name: Urdangarin, A.
name: Goicoa, T.
name: Ugarte, M. D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: The concept of spatial confounding is closely connected to spatial regression, although no general definition has been established. A generally accepted idea of spatial confounding in spatial regression models is the change in fixed effects estimates that may occur when spatially correlated random effects collinear with the covariate are included in the model. Different methods have been proposed to alleviate spatial confounding in spatial linear regression models, but it is not clear if they provide correct fixed effects estimates. In this article, we consider some of those proposals to alleviate spatial confounding such as restricted regression, the spatial+ model, and transformed Gaussian Markov random fields. The objective is to determine which one provides the best estimates of the fixed effects. Dowry death data in Uttar Pradesh in 2001, stomach cancer incidence data in Slovenia in the period 1995-2001 and lip cancer incidence data in Scotland between the years 1975-1980 are analyzed. Several simulation studies are conducted to evaluate the performance of the methods in different scenarios of spatial confounding. Results reflect that the spatial+ method seems to provide fixed effects estimates closest to the true value.
Anomaly Detection with the Voronoi Diagram Evolutionary Algorithm
Creators: name: Luis, Marti
name: Arsene, Fansi-Tchango
name: Laurent, Navarro
name: Schoenauer, Marc
Publisher: name: arXiv
Year: 2016
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper presents the Voronoi diagram-based evolutionary algorithm (VorEAl). VorEAl partitions input space in abnormal/normal subsets using Voronoi diagrams. Diagrams are evolved using a multi-objective bio-inspired approach in order to conjointly optimize classification metrics while also being able to represent areas of the data space that are not present in the training dataset. As part of the paper VorEAl is experimentally validated and contrasted with similar approaches.
Conditional Imitation: A new perspective of interpreting the fall of the Past East Asian Hegemon, the Late Qing Empire
Creators: name: Huang, Yanwen
Publisher: name: University of Chicago
Year: 2022
Subjects: subject: East Asian Studies
subject: Conditional Imitation
subject: East Asian Hegemon
subject: Late Qing Empire

description: The European powers, after years of capital accumulation through the industrial revolution, are ambitious about extending their order and influence beyond the scope of Europe. In the nineteenth century, the European powers and the United States brought their new international order and culture to challenge the east Asian hegemon Qing Empire and its neighbor Japan. Confronting the threat of the western powers, the Qing Empire and Japan had no other choice but to imitate stronger powers to ensure their survival. They imitated in different ways, which later completely diverged the fate of these two empires. As a result, Japan was successfully westernized and made it equal to the other European powers, but the Qing dynasty continued to decline until it collapsed. Why Japan's imitation was successful, but Qing Empire's imitation unsuccessful? Imitation is indeed a shortcut for backward countries to ensure survival and acquire more power; however, the case of Japan and Late Qing shows that not all imitations help prevent a state from survival crisis. Successful imitation comes with preconditions, which have been rarely discussed in imitation literature. This research developed a new term, conditional imitation, using the case of the Qing Empire and Japan to explain why Japan succeeded in imitating and China failed by concluding the necessary preconditions for a successful imitation. The result indicates that those preconditions include 1) the progressive mindset of elites, 2) a stable domestic power structure, and 3) a comprehensive one-step reform.
EXPERIÊNCIAS FORMATIVAS MARCANTES E APRENDIZAGEM SIGNIFICATIVA DOS ALUNOS DA EDUCAÇÃO DE JOVENS E ADULTOS: ESTUDO DE CASO EM UMA ESCOLA PÚBLICA NO INTERIOR DO AMAZONAS
Creators: name: Coelho, Romário
name: Alecio, Gaigher
Publisher: name: Zenodo
Year: 2023

description: O presente estudo de caso apresenta resultados advindos da investigação denominada: "Autobiografia: memórias afetivas e experiências marcantes na Educação de Jovens e Adultos (EJA)", desenvolvido no âmbito do Programa Ciência na Escola em 2020. O projeto teve financiamento da Fundação de Amparo à Pesquisa do Estado do Amazonas (FAPEAM), e foi realizado na escola Presidente Costa e Silva, em Anori-AM.
Breaking the Loss Limitation of On-chip High-confinement Resonators
Creators: name: Ji, Xingchen
name: Barbosa, Felippe A. S.
name: Roberts, Samantha P.
name: Dutt, Avik
name: Cardenas, Jaime
name: Okawachi, Yoshitomo
name: Bryant, Alex
name: Gaeta, Alexander L.
name: Lipson, Michal
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: On-chip optical resonators have the promise of revolutionizing numerous fields including metrology and sensing; however, their optical losses have always lagged behind their larger discrete resonator counterparts based on crystalline materials and flowable glass. Silicon nitride (Si3N4) ring resonators open up capabilities for optical routing, frequency comb generation, optical clocks and high precision sensing on an integrated platform. However, simultaneously achieving high quality factor and high confinement in Si3N4 (critical for nonlinear processes for example) remains a challenge. Here, we show that addressing surface roughness enables us to overcome the loss limitations and achieve high-confinement, on-chip ring resonators with a quality factor (Q) of 37 million for a ring with 2.5 μm width and 67 million for a ring with 10 μm width. We show a clear systematic path for achieving these high quality factors. Furthermore, we extract the loss limited by the material absorption in our films to be 0.13 dB/m, which corresponds to an absorption limited Q of at least 170 million by comparing two resonators with different degrees of confinement. Our work provides a chip-scale platform for applications such as ultra-low power frequency comb generation, high precision sensing, laser stabilization and sideband resolved optomechanics.
The effect of vitamin D supplementation on glycemic status of elderly people with prediabetes: a 12-month open-label, randomized-controlled study
Creators: name: Zaromytidou, Evangelia
name: Koufakis, Theocharis
name: Dimakopoulos, Georgios
name: Drivakou, Despina
name: Konstantinidou, Stavroula
name: Antonopoulou, Vasiliki
name: Grammatiki, Maria
name: Manthou, Eleni
name: Iakovou, Ioannis
name: Gotzamani-Psarrakou, Anna
name: Kotsa, Kalliopi
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
classificationCode: 19999
subject: Mathematical Sciences not elsewhere classified
classificationCode: 111714
subject: Mental Health
subject: Computational Biology

description: Data on the efficacy of vitamin D in improving the glycemic status of elderly people with prediabetes are scarce. This open-label, randomized-controlled trial investigated the effect of vitamin D supplementation on glycemic markers of Greek people with prediabetes aged 60 years or above, over 12 months. Participants were randomized to a weekly vitamin D3 dose of 25,000 IU (n = 45) or nothing (n = 45), on top of lifestyle measures. Anthropometric and glycemic markers were assessed at baseline, 3, 6, and 12 months Supplemented participants demonstrated a significant increase in 25(OH)D concentrations at 3, 6, and 12 months compared to baseline . In the intervention group, fasting glucose was decreased at 6 months compared to baseline (96.12 ± 5.51 vs 103.40 ± 12.05 mg/dl, p < 0.01) and glycated hemoglobin was significantly lower at 6 and 12 months compared to baseline [5.82 ± 0.21% vs 5.87 ± 0.21%, p = 0.004 and 5.80 ± 0.23% vs 5.87 ± 0.21%, p < 0.001, respectively]. Vitamin D could be complementary to lifestyle change strategy for the management of prediabetes in the elderly. ISRCTN51643592.
A journey into the proton structure: Progresses and challenges
Creators: name: Celiberto, Francesco Giovanni
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Unraveling the inner dynamics of gluons and quarks inside nucleons is a primary target of studies at new-generation colliding machines. Finding an answer to fundamental problems of Quantum ChromoDynamics, such as the origin of nucleon mass and spin, strongly depends on our ability of reconstructing the 3D motion of partons inside the parent hadrons. We present progresses and challenges in the extraction of TMD parton densities, with particular attention to the ones describing polarization states of gluons, which still represent an largely unexplored field. Then, we highlight connections with corresponding parton densities in the high-energy limit, the so-called unintegrated gluon distributions or UGDs and, more in general, to recent developments in high-energy physics.
description: 10 pages, 2 figures, version published in Universe
MEMÓRIAS DE UM LEITOR: A LITERATURA INFANTOJUVENIL COMO AMPLIAÇÃO DO UNIVERSO DE LEITURA DOS ALUNOS NO ENSINO MÉDIO
Creators: name: Alecio, Gaigher
name: Coelho, Romário
name: Santos, José
Publisher: name: Zenodo
Year: 2023

description: A leitura de textos literários promove uma construção de saberes, memórias e conhecimentos, isto é, opondo-se à educação bancária, contudo esta atividade vista como uma experiência emocional, permite o envolvimento dos leitores a tipos diversos de produções textuais a partir de uma leitura advinda de vontade própria gerando, assim, uma recordação afetiva
The Assessment of Quality External Audit Services: Evidence from Grades 'A' Private Audit Firms of Ethiopia
Creators: name: Chemeda, Zergaw
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: The study has been conducted with the aim of assessing the quality of external audit services like quality of services and sufficiency of resources, exercises of professional skepticism, professional independence and objectivity and external auditors' communications. To enable the researcher address the objectives of the study, a descriptive research was the preferred choice since it was meant to present a picture of the specific details of a quality audit services settings. The study is based on an interpretive approach employing survey questionnaires. The data collection was through Self-administered questionnaires and based on convenience sample selection 10 head of private audit firms, 10 auditor managers and 10 senior auditors totally 30 respondents selected. Totally 30 questionnaires were distributed and collected to 10 grades 'A' private audit firms and a response rate of 100%. The collected data fulfills construct validity (both convergent and discriminant validity) and reliability. The external auditors must remain independent and objective throughout the provision of their external audit services and when formulating their audit opinion. They need to be met prior to the appointment of professional financial advisors for non-audit services to safeguard the independence and objectivity of the external auditors. The provision of additional non-audit related services by the external auditor has the potential to impinge upon their independence and objectivity. The survey result shows that as per majority of respondents' perceptions grades 'A' authorized private audit firms are not independent and objective during their audit work. Key words: External Auditor, External Audit Services, Quality External Audit Services, non- audit services.
Predicting the dynamic response of an hydraulic system using power bond graphs
Creators: name: Barnard, Bevis W.
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.
Forecasting Hierarchical Time Series
Creators: name: Sangari, Seema
name: Zhang, Xinyan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: This paper addresses a common problem with hierarchical time series. Time series analysis demands the series for a model to be the sum of multiple series at corresponding sub-levels. Hierarchical Time Series presents a two-fold problem. First, each individual time series model at each level in the hierarchy must be estimated separately. Second, those models must maintain their hierarchical structure over the specified period of time, which is complicated by performance degradation of the higher-level models in the hierarchy. This performance loss is attributable to the summation of the bottom-level time series models. In this paper, the proposed methodology works to correct this degradation of performance through a top-down approach using odds, time series and systems of linear equations. Vertically, the total counts of corresponding series at each sub-level are captured while horizontally odds are computed to establish and preserve the relationship between each respective time series model at each level. The results, based on root mean square percentage error with simulated hierarchical time series data, are promising.
title: The Dynamics of Behavioral Responses During a Crisis
Creators: name: Hartung, Corinna
name: Veramendi, Gregory F.
name: Winter, Joachim
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2022

description: This paper investigates the dynamics of behavioral changes during a crisis. We study this in the context of the first year of the Covid-19 pandemic, where behavioral responses were important in mitigating the costs of the pandemic. To identify behavioral responses to unanticipated and transient health risk shocks, we combine high-frequency cellphone mobility data with detailed incidence data in Germany. Using an event-study design on local outbreaks, we find that county-level mobility immediately and significantly decreased by about 2.5% in response to an outbreak independent of non-pharmaceutical interventions. We also find that the reproduction rate decreased by about 17% in response to a local outbreak. Both behavioral responses are quite persistent even after the relative health risk has dissipated. By the time of the second wave, the behavioral response to a second or third shock is small or negligible. Our results demonstrate the importance of (1) integrating behavioral persistence in models used to study behavior and policies that change behavior, (2) the effectiveness of policies that provide high-frequency localized information on health risks, and (3) the potential persistence of behavioral changes after the Covid-19 pandemic has passed.
Optical performance of prototype horn-coupled TES bolometer arrays for SAFARI
Creators: name: Audley, Michael D.
name: de Lange, Gert
name: Gao, Jian-Rong
name: Khosropanah, Pourya
name: Hijmering, Richard
name: Ridder, Marcel L
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The SAFARI Detector Test Facility is an ultra-low background optical testbed for characterizing ultra-sensitive prototype horn-coupled TES bolmeters for SAFARI, the grating spectrometer on board the proposed SPICA satellite. The testbed contains internal cold and hot black-body illuminators and a light-pipe for illumination with an external source. We have added reimaging optics to facilitate array optical measurements. The system is now being used for optical testing of prototype detector arrays read out with frequency-domain multiplexing. We present our latest optical measurements of prototype arrays and discuss these in terms of the instrument performance.
description: 9 pages, 8 figures. Copyright 2016 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited
The Impacts of Working Capital Management on firms Profitability. Evidence from Selected Manufacturing Companies in Somali Regional State, Ethiopian.
Creators: name: Ibrahin, Niman
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: The purpose of this study is to investigate the impact of working capital management on firms' profitability. The study aims to examine the statistical significance between component of working capital management and firm's profitability. In light of this objective the study adopted quantitative method of research approaches to test a series research hypothesis. Specifically, the study used survey of documentary analysis of companies' audited financial statements. Stratified sampling design was employed based on purposively of companies. Then companies were selected based on purposively from each stratum's to avoid biases. Consequently, the study selected a sample of twenty five (25) companies for the period of six years (2009-2014) with the total of 150 observations. Data was analyzed on quantitative basis using Pearson's correlation and pooled panel data regression models of cross-sectional and time series data were used for analysis. More over the study used gross operating profit as dependent profitability variable. Accounts receivable Days, inventory holding Days, and accounts payable Days and cash conversion cycle are used as independent variables. Also current ratio, debt ratio, firm size and sale growth as control variable The results showed that there is statistical significance negative relationship between profitability and working capital management. It means that, companies managers can create profits or value for their companies and shareholders by handling correctly the cash conversion cycle and keeping each different component of working capital to a possible optimum level. The researcher found that there is a significant negative relationship between liquidity and profitability. Moreover the study finds that there is a significance negative relationship between size and firm profitability. Unlike, the study found that there is negative relationship between debt used and firms profitability. Meanwhile the study found that there is positive relationship between firm's growths and firm's profitability Keywords: working capital, working capital management, firm size, cash conversion cycle and profitability
Upper critical field in the model with finite range interaction between electrons
Creators: name: Shumilin, A. V.
name: Baranov, V. V.
name: Kabanov, V. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We develop a theory of the upper critical field in a BCS superconductor with a nonlocal interaction between electrons. We have shown that the nonlocal interaction is characterized by the parameter $k_Fρ_0$ where $k_F$ is the Fermi momentum and $ρ_0$ is the radius of electron-electron interaction. The presence of the external magnetic field leads to the generation of additional components of the order parameter with different angular momentum. This effect leads to the enhancement of the upper critical field above the orbital limiting field. In addition the upward curvature in the temperature dependence of $H_{c2}(T)$ in the clean limit is predicted. The impurity scattering suppresses the effect in the dirty limit.
description: Accepted for publication in Phys. Rev. B