cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Trapping of Atoms by the Counter-Propagating Stochastic Light Waves
Creators: name: Romanenko, Victor I.
name: Yatsenko, Leonid P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We calculate the temperature of the atoms in the field of counter-propagating stochastic light waves (the chaotic-field model). We show that the temperature of the atomic ensemble depends on the autocorrelation time of the waves, their intensity and the detuning of the carrier frequency of the waves from the atomic transition frequency. The field can form a one-dimensional trap for atoms, as is readily seen from our previous investigation of light-pressure force on an atom in counter-propagating stochastic light waves [V. I. Romanenko, B. W. Shore, L. P. Yatsenko, Opt. Commun. 268 (2006) 121-132]. We carry out a numerical simulation of the atomic ensemble using parameters appropriate for sodium atoms. Analyzing the known investigation of the light-pressure force on atoms and their motion in the counter-propagating polychromatic waves, we suggest an hypothesis that any polychromatic counter-propagating waves that have a discrete spectrum, or waves described by a stationary stochastic process, one of which repeats the other, can form a trap for atoms.
description: 24 pages, 7 figures
title: Higher wages, overstaffing or both?
title: The employer’s assessment of problems regarding wage costs and staff level in codetermined establishments
titleType: AlternativeTitle
Creators: name: Gralla, Rafael
name: Kraft, Kornelius
Publisher: name: Technische Universität Dortmund
Year: 2012
Subjects: subject: employment
subject: wages
subject: works councils
subject: 310
subject: 330
subject: 620

description: This study examines the differences in the likelihood of overpayment and overemployment in establishments with and without works councils. In contrast to other studies, we use assessments by the management concerning the existence of such problems. Furthermore, we also analyze how different types of works councils influence the probability of overemployment and overpayment. Using the wave 2006 of the IAB Establishment Panel, we show that establishments with works councils that are prepared to interfere with the management are more likely to suffer from overemployment but do not differ in the likelihood of overpayment compared to establishments without works councils. Establishments with works councils that are in line with the management, however, do not differ from establishments without a works council with regard to the likelihood of overemployment but have a lower likelihood of overpayment.
description: Discussion Paper / SFB 823;18/2012
Measuring the Innermost Stable Circular Orbits of Supermassive Black Holes
Creators: name: Chartas, G.
name: Krawczynski, H.
name: Zalesky, L.
name: Kochanek, C. S.
name: Dai, X.
name: Morgan, C. W.
name: Mosquera, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a promising new technique, the g-distribution method, for measuring the inclination angle (i), the innermost stable circular orbit (ISCO), and the spin of a supermassive black hole. The g-distribution method uses measurements of the energy shifts in the relativistic iron line emitted by the accretion disk of a supermassive black hole due to microlensing by stars in a foreground galaxy relative to the g-distribution shifts predicted from microlensing caustic calculations. We apply the method to the gravitationally lensed quasars RX J1131-1231 (z_s=0.658, z_l=0.295), QJ 0158-4325 (z_s=1.294, z_l=0.317), and SDSS 1004+4112 (z_s=1.734, z_l=0.68). For RX J1131-1231 our initial results indicate that r_ISCO<8.5 gravitational radii (r_g) and i > 76 degrees. We detect two shifted Fe lines, in several observations, as predicted in our numerical simulations of caustic crossings. The current DeltaE-distribution of RX J1131-1231 is sparsely sampled but further X-ray monitoring of RX J1131-1231 and other lensed quasars will provide improved constraints on the inclination angles, ISCO radii and spins of the black holes of distant quasars.
description: 40 pages, includes 20 figures, Replaced with version accepted by The Astrophysical Journal
Nature and technology as impetus for image and process
Creators: name: Burke, Geraldine.
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.
An investigation of design classification systems for fibreboard packaging products : with particular reference to computer aided design applications
Creators: name: Farrah, Timothy Francis.
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.
Robust watermarking and its applications to communication problems
Creators: name: Samee, Muhammad Kashif
Publisher: name: Technische Universität Dortmund
Year: 2012
Subjects: subject: authentication
subject: CDMA
subject: DCT
subject: DWT
subject: scrambling
subject: security
subject: watermarking
subject: 620

description: Digital watermarking has recently gained an intense interest in research and applications. An invisible and secret signal, called watermark, is added to the host data. With the help of this watermark issuer of the data can be unveiled, unauthorised users can be identified, illicit copying can be avoided, any attempt to temper with the data can be detected and many other security services can be provided. In this thesis, the relations and differences between watermarking and communication systems are elaborated. Based on these results new methods for both watermarking and communication are derived. A new blind, robust and reversible watermarking scheme based on Code Division Multiple Access (CDMA) is presented in this thesis. Using this scheme watermark is arithmetically added to spatial domain or frequency domain. Watermark is extracted by using spreading codes only. Proposed watermarking scheme is simple, computationally efficient and can be applied to any image format. A novel idea that watermark can be part of the image is presented. By using watermark, which is a part of an image, digital watermarking can be used beyond simple security tasks. A part of an image is selected and embedded in the whole image as watermark. This watermarked image is attacked (transmitted or compressed). By using the extracted watermark and attacked selected part image quality can be assessed or jpeg quantization ratio can be estimated or even image can be equalized blindly. Furthermore, CDMA based watermarking is used to authenticate radio frequency signal. Spreaded watermark is added in the form of noise to the modulated radio frequency signal. If this noise is increased, watermarked signal automatically becomes a scrambled signal. Later watermark is extracted and by using reversibility of proposed scheme watermark is removed. Once the watermarked is removed original signal is restored, hence descrambled.
The effect of Social Media on Sales volume performance: The case of Ayat Residential real estate
Creators: name: Wolde, Azenegash
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The advent of technologies, Social media marketing become known and vital in the economy.In this research social media and its effect on sales volume of the real estate discussed. Variables such as social computer pressure, innovation management and social media marketing management were discussed and their effects were dealt. Three hundred sixty one participants were surveyed by the researcher in order to measure their activity, interest level, and motivation for processing posts by real estate professionals on Social media. Their corresponding data were analyzed for answers to four specific research questions. The researcher's findings were suggested that the average social media user is the same as the real estate agent's target client. The findings from this study suggested that current levels of real estate marketing via these social networking sites engage users enough to hold their sufficiency threshold. With respect of un regulated status of real estate companies, Ayat residential real estate sales has been affected by the mentioned variable of social media (IT infrastructure, Social computer pressure Innovation management and, Marketing management).
Autofocusing and self-healing of partially blocked circular Airy derivative beams
Creators: name: Kumari, Anita
name: Dev, Vasu
name: Pal, Vishwa
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We numerically and experimentally study the autofocusing and self-healing of partially blocked circular Airy derivative beams (CADBs). The CADB consists of multiple rings, and partial blocking of CADB with different kinds is achieved by using symmetric and asymmetric binary amplitude masks, enabling blocking of inner/outer rings and sectorially. The CADB blocked with different types possesses the ability to autofocus, however, the required propagation distance for abrupt autofocusing vary with the amount and types of blocking. The abrupt autofocusing is quantified by a maximum k-value, and how fast it changes around the autofocusing distance ($z_{af}$). In particular, CADB blocked with inner rings (first/two/three) exhibits an abrupt autofocusing, as the k-value sharply increases [decreases] just before [after] $z_{af}$. The maximum k-value always occurs at $z_{af}$, which decreases as the number of blocked inner rings increases. For CADB blocked with outer rings, the k-value gradually changes around $z_{af}$, indicating a lack of abrupt autofocusing. The value of $z_{af}$ increases with the number of blocked outer rings. This suggests that although outer rings contain low intensities, these play an important role in autofocusing. A sectorially blocked CADB possesses an abrupt autofocusing, and maximum k-value depends on the amount of blocking. The CADB blocked with different types possesses good self-healing abilities, where blocked parts reappear as a result of redistribution of intensity. The maximum self-healing occurs at $z_{af}$, where an overlap integral approaches a maximum value. Finally, we have compared ideal CADB and partially blocked CADB having the same radii, and found that an ideal CADB possesses better abrupt autofocusing. We have found a good agreement between the numerical simulations and experimental results.
description: 16 pages, 20 figures
HISTORICIDADE DA REDE 5G (QUINTA GERAÇÃO):  APLICAÇÕES E DESAFIO
Creators: name: Santana, Washington Lima de
name: Sisnando, Anderson Dourado
name: Ribeiro, Kilder
name: Maniçoba, Robson Hebraico Cipriano
name: Santos, Alex Ferreira dos
Publisher: name: Zenodo
Year: 2024
Subjects: subject: 5G
subject: Internet of things
subject: Internet das coisas
subject: aplicações de redes

description: A tecnologia sem fio provocou mudanças na sociedade e nas formas de negócio. A evolução dos dispositivos móveis desde o sistema de comunicação analógico ao que se tem hoje de comunicação instantânea, forneceram de forma eficiente as necessidades da sociedade. No entanto, devido as novas demandas de uso de banda larga fixa e móvel, comunicação massiva de Internet, cidade e indústrias baseados na efemeridade da informação, fora exigido uma rede confiável e de baixa latência. Neste sentido, a rede 5G tem se apresentado como um facilitador na transformação digital, trazendo tecnologias e experiências inéditas. Dessa forma, o presente trabalho tem como objetivo analisar a rede 5G e sua nova arquitetura, demonstrando através de seus resultados as possíveis aplicações e possibilidades técnicas da nova rede, bem como, elencar os desafios a serem superados. Para isso, foi realizado um levantamento bibliográfico nas principais bases de dados com recorte temporal entre os anos de 2019 e 2023. Os tópicos sucedem esta introdução, descrevem sobre a historicidade das redes de comunicações móveis, caracterização da rede 5G, panorama atual da nova arquitetura nos contextos global e local (Brasil), além de apresentar a aplicabilidade da rede. O estudo de revisão permitiu observar que a nova rede de quinta geração, tem o potencial de possibilitar novas aplicações e modelos de negócios que podem melhorar drasticamente a qualidade de vida em todo o mundo. Ainda que existam desafios, operadoras e empresas do ramo de tecnologia tem feito esforços para tornar a rede 5G realidade, principalmente no Brasil.
Relation between halo spin and cosmic web filaments at z=3
Creators: name: Gonzalez, Roberto E.
name: Prieto, Joaquin
name: Padilla, Nelson
name: Jimenez, Raul
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the spin evolution of dark matter haloes and their dependence on the number of connected filaments from the cosmic web at high redshift (spin-filament relation hereafter). To this purpose, we have simulated $5000$ haloes in the mass range $5\times10^{9}h^{-1}M_{\odot}$ to $5\times10^{11}h^{-1}M_{\odot}$ at $z=3$ in cosmological N-body simulations. We confirm the relation found by Prieto et al. 2015 where haloes with fewer filaments have larger spin. We also found that this relation is more significant for higher halo masses, and for haloes with a passive (no major mergers) assembly history. Another finding is that haloes with larger spin or with fewer filaments have their filaments more perpendicularly aligned with the spin vector. Our results point to a picture in which the initial spin of haloes is well described by tidal torque theory and then gets subsequently modified in a predictable way because of the topology of the cosmic web, which in turn is given by the currently favoured LCDM model. Our spin-filament relation is a prediction from LCDM that could be tested with observations.
description: 8 pages, 9 figures. Accepted for publication in MNRAS
Relocations : Jewish heritage, Islamic culture
Creators: name: Treister, Aloma.
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.
Öcsöd-Kováshalom, Ungarn. Forschungen zu Tell-Siedlungen und ihrer Umgebung in Ostungarn. Die Arbeiten der Jahre 2018 bis 2021
Creators: name: Bánffy, Eszter
name: Rassmann, Knut
name: Füzesi, András
name: Raczky, Pál
Publisher: name: e-Forschungsberichte
Year: 2023

description: The research of tell settlements coming from the first half of the 5th millennium BC go back to almost a century. Yet, earlier research was concentrated on the sites and barely on their perimeter. The new project of the RGK, in cooperation with the Eötvös Loránd (ELTE) University in Budapest and with the Hungarian National Museum, sets mainly these outskirts in focus. New data of non- or minimalinvasive surveay as well as small-sclae, targeted excavations will be compared with the results of earlier excavations, opening new avenues for so that a better understanding of social structure and networks within the late Neolithic Carpathian basin.
description: e-Forschungsberichte, Faszikel 1 (2023)
Maximum propagation speed and Cherenkov effect in optical phonon transport through periodic molecular chains
Creators: name: Burin, Alexander L.
name: Parshin, Igor V.
name: Rubtsov, Igor V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Optical phonons serve as the fast and efficient carriers of energy across periodic polymers due to their delocalization, large group velocity because of covalent bonding and large energy quantum compared to that for acoustic phonons, as it was observed in a number of recent measurements in different oligomers. However, this transport is dramatically sensitive to anharmonic interactions, including the unavoidable interaction with acoustic phonons responsible for the transport decoherence, suppressing ballistic transport at long distances. Here we show that this decoherence is substantially suppressed if the group velocity of optical phonons is less than the sound velocity of acoustic phonons; otherwise ballistic transport is substantially suppressed by a Cherenkov's like emission of acoustic phonons. This conclusion is justified considering energy and momentum conservation during phonon absorption or emission and supported by the numerical evaluation of lifetimes of the optical phonons. It is also consistent with the recent experimental investigations of ballistic optical phonon transport in oligomers with minor exception of relatively short oligophenylenes.
description: 35 pages, 16 figures, to appear in Journal of Chemical Physics
Performance of Micro and Small Enterprises and their Role in Enhancing Local Economic Development: A Case Study in Gullele Sub City of Addis Ababa
Creators: name: Sherefa, Munira
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2012

description: Local economies often get developed with the participation of government, non-government organizations, and the community at large. Among the community, micro and small enterprises operators have the capability to strengthen the local economy through mobilizing local resources. This research explores the performance of Micro and Small enterprises and their role in enhancing local economic development in Gullele Sub-City, Addis Ababa. The analysis was based on primary and secondary data collected through administrative type of questionnaires and key informant interviews from the operators, government officials, and enterprise representatives. Contribution of MSEs is viewed in terms of the enterprises' performance by using their capital, profit, and employment creation. To see their impact, the study also review contribution of MSEs in light of economic improvement of the operators through household income and saving habit, household's expenditure to food, education, health, durable and non-durable assets. Finally, discussion was held with operators regarding the challenge and opportunities the enterprises and operators are facing now. The results indicate that, MSEs show improvement in their capital and profit. The enterprises' performance in terms of employment, capital and profit varies based on the sector in the study area. Construction and wood and metal works need high initial capital, they are labor intensive and have higher profit margin than the textile and the food and beverage sub sectors. Hence, this shows their contribution to local economic development is encouraging. Most of the operators are performing without appropriate training even if training is provided by the government. Nonetheless, the operator's living standard, income, food consumption, education, health, durable, and non-durable household assets are increasing. Most of the operators have a plan to expand the business either in the same line or to have a branch and diversify the business which has a greater impact to the local economic development. However, there is still much untapped potential for improvements in this respect beyond what has been achieved so far. Major constraining factors for realizing such potential include lack of technical and entrepreneurial skills, lack of sufficient capital, affordable access to raw material and input and lack of market to their product
Measuring Attention to Irrelevant Stimuli in Contextual Cueing of Visual Search
Creators: name: Vadillo, Miguel
name: Aivar, M Pilar
name: Giménez-Fernández, Tamara
name: Vicente-Conesa, Francisco
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: contextual cueing
subject: implicit learning
subject: selective attention

description: Several experiments conducted with the contextual cueing paradigm manipulate selective attention by asking participants to pay attention to stimuli presented in just one colour. In the present study we put to the test the hypothesis that participants might still be paying a residual amount of attention to stimuli presented in the "irrelevant" colour. This has important implications for the interpretation of previous results concluding that selective attention might not be necessary for contextual cuing.
Resolved astrometric orbits of ten O-type binaries
Creators: name: Bouquin, J. -B. Le
name: Sana, H.
name: Gosset, E.
name: De Becker, M.
name: Duvert, G.
name: Absil, O.
name: Anthonioz, F.
name: Berger, J. -P.
name: Ertel, S.
name: Grellmann, R.
name: Guieu, S.
name: Kervella, P.
name: Rabus, M.
name: Willson, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Our long term aim is to derive model-independent stellar masses and distances for long period massive binaries by combining apparent astrometric orbit with double-lined radial velocity amplitudes (SB2). We follow-up ten O+O binaries with AMBER, PIONIER and GRAVITY at the VLTI. Here, we report about 130 astrometric observations over the last 7 years. We combine this dataset with distance estimates to compute the total mass of the systems. We also compute preliminary individual component masses for the five systems with available SB2 radial velocities. Nine over the ten binaries have their three dimensional orbit well constrained. Four of them are known colliding wind, non-thermal radio emitters, and thus constitute valuable targets for future high angular resolution radio imaging. Two binaries break the correlation between period and eccentricity tentatively observed in previous studies. It suggests either that massive star formation produce a wide range of systems, or that several binary formation mechanisms are at play. Finally, we found that the use of existing SB2 radial velocity amplitudes can lead to unrealistic masses and distances. If not understood, the biases in radial velocity amplitudes will represent an intrinsic limitation for estimating dynamical masses from SB2+interferometry or SB2+Gaia. Nevertheless, our results can be combined with future Gaia astrometry to measure the dynamical masses and distances of the individual components with an accuracy of 5 to 15\%, completely independently of the radial velocities.
description: Accepted in A&A; Astrometric positions available in CDS; revised version after language edition
Analytic three-dimensional primary hair charged black holes and thermodynamics
Creators: name: Priyadarshinee, Supragyan
name: Mahapatra, Subhash
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present and discuss new families of primary hair charged black hole solutions in asymptotically anti-de Sitter space in three dimensions. The coupled Einstein-Maxwell-scalar gravity system, that carries the coupling $f(ϕ)$ between the scalar and Maxwell fields is solved, and exact hairy black hole solutions are obtained analytically. The hairy solutions are obtained for three different profiles of the coupling function: (i) $f(ϕ)=1$, corresponding to no direct coupling between the scalar and Maxwell fields, (ii) $f(ϕ)=e^{-ϕ}$, and (iii) $f(ϕ)=e^{-ϕ^2/2}$; corresponding to non-minimal coupling between them. For all these couplings the scalar field and curvature scalars are regular everywhere outside the horizon. We analyze the thermodynamics of the hairy black hole and find drastic changes in its thermodynamic structure due to the scalar field. For $f(ϕ)=1$, there exists a critical value of the hairy parameter above which the charged hairy black hole exhibits the Hawking/Page phase transition, whereas no such phase transition occurs below this critical value. Similarly, for $f(ϕ)=e^{-ϕ}$ and $f(ϕ)=e^{-ϕ^2/2}$, the hairy solution exhibits a small/large black hole phase transition for above critical values of the hairy parameter. Interestingly, for these couplings, the thermodynamic phase diagram of three-dimensional hairy charged black holes resembles that of a higher-dimensional RN-AdS black hole, albeit with two second-order critical points.
description: 34 pages; many figures; slightly changed title, discussion on primary hair added, typos corrected, references added
The role of mergers and halo spin in shaping galaxy morphology
Creators: name: Rodriguez-Gomez, Vicente
name: Sales, Laura V.
name: Genel, Shy
name: Pillepich, Annalisa
name: Zjupa, Jolanta
name: Nelson, Dylan
name: Griffen, Brendan
name: Torrey, Paul
name: Snyder, Gregory F.
name: Vogelsberger, Mark
name: Springel, Volker
name: Ma, Chung-Pei
name: Hernquist, Lars
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Mergers and the spin of the dark matter halo are factors traditionally believed to determine the morphology of galaxies within a $Λ$CDM cosmology. We study this hypothesis by considering approximately 18,000 central galaxies at $z=0$ with stellar masses $M_{\ast} = 10^{9}-10^{12} \, {\rm M}_{\odot}$ selected from the Illustris cosmological hydrodynamic simulation. The fraction of accreted stars -- which measures the importance of massive, recent and dry mergers -- increases steeply with galaxy stellar mass, from less than 5 per cent in dwarfs to 80 per cent in the most massive objects, and the impact of mergers on galaxy morphology increases accordingly. For galaxies with $M_{\ast} \gtrsim 10^{11} \, {\rm M}_{\odot}$, mergers have the expected effect: if gas-poor they promote the formation of spheroidal galaxies, whereas gas-rich mergers favour the formation and survivability of massive discs. This trend, however, breaks at lower masses. For objects with $M_{\ast} \lesssim 10^{11} \, {\rm M}_{\odot}$, mergers do not seem to play any significant role in determining the morphology, with accreted stellar fractions and mean merger gas fractions that are indistinguishable between spheroidal and disc-dominated galaxies. On the other hand, halo spin correlates with morphology primarily in the least massive objects in the sample ($M_{\ast} \lesssim 10^{10} \, {\rm M}_{\odot}$), but only weakly for galaxies above that mass. Our results support a scenario where (1) mergers play a dominant role in shaping the morphology of massive galaxies, (2) halo spin is important for the morphology of dwarfs, and (3) the morphology of medium-sized galaxies -- including the Milky Way -- shows little dependence on galaxy assembly history or halo spin, at least when these two factors are considered individually.
description: 16 pages, 14 figures, accepted for publication in MNRAS
Measuring Customer Based Brand Equity (CBBE) Of Mobile Phone Brands In Ethiopia
Creators: name: Elyasse, Daniel
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The purpose of this study was to Measure Customer Based Brand Equity (CBBE) in Ethiopian Mobile Phone Market. The study used determinants of Customer Based Brand Equity model proposed by Aaker (1991). The study focused on four determinants namely: Perceived quality, Brand Awareness, Brand Association, Brand Loyalty. As the number of Mobile Phone brands in Ethiopia is increasing in number, the study focused on 4(four) mobile phone brands namely: TECHNO, SAMSUNG, HUAWEI and SMADL. The study examined how and to what extent Aaker's Brand Equity determinants affect customers brand preference and identify factors that lead to high brand choice. Both primary and secondary data sources were applied. For primary data questionnaires were used as a main primary data source and other related literatures as secondary data. Different documents were assessed in line with the secondary data sources. The researcher distributed a structured questionnaires written in Amharic and in English and administered by the researcher and business students. Out of the total sample size, 336 response was retained for further analysis. The analysis was performed using descriptive and inferential statistics by using SPSS version 21 software with Amos graphics package; Moreover SEM (Structural Equation Modeling) was also employed to investigate the causal relationship b/n independent and dependent variables. According to the findings of the study determinants of Customer Based Brand Equity; Brand association and Brand Loyalty have shown a significant positive effect on Overall Brand Equity. Whereas Perceived Quality and Brand Awareness were insignificant to affect CBBE of mobile phone brands. In addition, the findings show that Brand Loyalty and Brand Association have the largest impact on Overall Brand Equity. Accordingly, Marketing Managers and Brand Managers of Mobile Phone Manufacturers', importers and Wholesalers need to give more emphasis and due attention on Perceived Quality, Brand Awareness, Brand Association and Brand Loyalty so as to prioritize the firms resource and to have large market share in Ethiopian Mobile Phone Market
Lie symmetry classification for the 1+1 and 1+2 generalized Zoomeron equations
Creators: name: Paliathanasis, Andronikos
name: Leach, P. G. L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present a complete algebraic classification of the Lie symmetries for generalized Zoomeron equations. For the generalized 1+1 and 2+1 Zoomeron equations we solve the Lie symmetry conditions in order to constrain the free functions of the equations. We find that the differential equations of our consideration admit the same number of Lie symmetries with the non-generalized equations. The admitted Lie symmetries form the Lie algebras $2A_{1}$, $A_{3,3}$ $\ $for the 1+1 generalized Zoomeron equation, and the $% A_{4,5}^{ab}\,$, $3A_{1}\otimes _{s}2A_{1}$ in the case of the 2+1 generalized Zoomeron equation. The one-dimensional optimal system is constructed for the two equations and similarity solutions are derived.\ The similarity transformation lead to the derivation of kink solutions. Indeed, the similarity exact solutions determined in this work are asymptotic solutions near to the singular behaviour of the kink behaviour.
description: 18 pages, no figures, to appear in Mod. Phys Lett. A
Light and organic form as the basis of an aesthetic in translucent bone china
Creators: name: Mellor, Angela.
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.
Milet, Türkei. Marmor in Milet der Kaiserzeit. Bericht über die archäometrische Studie. Die Arbeiten der Jahre 2018 bis 2022
Creators: name: Toma, Natalia
Publisher: name: e-Forschungsberichte
Year: 2023

description: The report presents the archaeometrical methods used to provenance the marble building material used to adorn the city of Miletus. Within the framework of the DFG-funded research project (TO1102/1-1), more than 440 ­archaeological and geological samples were examined during the period 2018 to 2022, and each was provided with an archaeometric dataset containing numerical parameters and descriptively recorded properties, which ­serves as the basis for a multivariate provenance analysis of the marble. In addition, two collections of geological material and archaeological samples were recorded: the legacy of Klaus Germann (TU-Berlin), which is now preserved at the Antikensammlung in Berlin, and the collection of Gregor Borg stored at the Martin-Luther-University of Halle.
description: e-Forschungsberichte, Faszikel 1 (2023)
Optimal designs for regression models with a constant coefficient of variation
Creators: name: Dette, Holger
name: Müller, Werner G.
Publisher: name: Technische Universität Dortmund
Year: 2012
Subjects: subject: constant coefficient of variation
subject: heteroscedasticity
subject: optimal design
subject: polynomial regression
subject: 310
subject: 330
subject: 620

description: In this paper we consider the problem of constructing optimal designs for models with a constant coefficient of variation. We explore the special structure of the information matrix in these models and derive a characterization of optimal designs in the sense of Kiefer and Wolfowitz (1960). Besides locally optimal designs, Bayesian and standardized minimax optimal designs are also considered. Particular attention is spent on the problem of constructing D-optimal designs. The results are illustrated in several examples where optimal designs are calculated analytically and numerically.
description: Discussion Paper / SFB 823;20/2012
Efficiency of Electronic Service Delivery: A Case Study of Automated Systems for Customs Data (ASYCUDA) in Ethiopian Revenue and Customs Authority (ERCA)
Creators: name: Bekele, Gossa
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: This study aims to explore the efficiency of electronic service delivery by taking Automated System for Customs Data (ASYCUDA) as the case study in Ethiopia Revenue and Customs Authority (ERCA). To conduct this study descriptive research method was used. The study tried to describe the efficiency of the system (ASYCUDA) by triangulating different data from the view points of customers, employees, clearing agents and other relevant offices which use ASYCUDA processed data in their works. Survey has been used to collect data from the total sample size of 130.The sample of this study were chosen using stratified random sampling. Questionnaires, interviews, data analysis and observation were used to collect necessary data. The research study involved three categories of sample population: customers of the authority, employees of ERCA and relevant offices which directly use the report of ASYCUDA driven data. Data analysis was made by using SPSS version 20 software and other simple statistical tools like percentage, ratio and tables. The study finding indicates that even though ASYCUDA is facilitating the import and export process of the authority, it faces implementation problems. This creates inefficiency in the maximizations of the benefits expected from implementations of ASYCUDA. The major technical and institutional problems associated with implementations of ASYCUDA were also analyzed. Some of the challenges which created problems in smooth process of implementation of ASYCUDA were: lack of trained manpower, repeated system failure because of different reasons, frequent electric power interruptions and frequent network failures. These have created a big problem in import and export process of the authority. From the descriptive statistics method of quantitative data analysis and interview interpretation, study concludes that these factors should be improved by creating coordination inside and outside of the organization to improve the efficiency of ASYCUDA which solve the problems of import and export process and make the revenue collection of ERCA smooth. The study gives recommendations accordingly and some of the recommendations are: give training to employees regarding ASYCUDA, using latest versions of ASYCUDA (version four instead of version three), improve management system of the work process, improve the availability of network by coordinating with Ethiopian telecommunication (ETC) and Ethiopian Electric Power Authority regarding electric power failure by using alternative source of energy to reduce the power interruptions at working hours
Phase diagram and superconductivity of Calcium Alanates under pressure
Creators: name: Di Cataldo, Simone
name: Boeri, Lilia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this paper we present a first-principles study of the high-pressure superconducting phase diagram of calcium alanates (Ca-Al-H), based on ab-initio crystal structure prediction and anisotropic Migdal-Eliashberg Theory. Calcium alanates have been intensively studied at ambient pressure for their hydrogen-storage properties, but their high-pressure behavior is largely unknown. By performing a full scan of the ternary convex hull at several pressures between 0 and 300 GPa, we identify several new structural motifs, characterized by a high Al-H coordination, where Al--$d$ orbitals participate in the bonding. Among all new phases thus identified, we focus in particular on a phase with CaAlH$_7$ composition, which lies on the convex hull at 300 GPa, and remains dynamically stable down to 50 GPa, with a predicted superconducting T$_c$ of 82 K, which likely represents a new promising template to achieve increase chemical precompression in ternary hydrides. Our findings reveal important insights into the structure-property relationships of calcium alanates under high pressure, and highlight a possible strategy to achieve conventional superconductivity at low pressures.
description: 5 figures, submitted to JPCM
The good, the bad, and the cuddly
Creators: name: Doolan, Michael.
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.
On propagation of positive and negative streamers in air in uniform electric fields
Creators: name: Naidis, G V
name: Babaeva, N Yu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Recently published results of numerical simulations of positive and negative streamers propagating in uniform electric fields in air are analyzed here in the framework of an analytical approach. Obtained approximate relations between the streamer radius, velocity and length, depending on the value of applied electric field, are in reasonable agreement with the results of numerical simulations.
Lykien, Türkei. Lykische Familien in hellenistischer und römischer Zeit. Eine regionale Untersuchung der Inschriften. Die Arbeiten bis zum Jahr 2022
Creators: name: Kılıç Aslan, Selen
Publisher: name: e-Forschungsberichte
Year: 2023

description: The roots of the Lycians, one of the oldest populations in Asia Minor, reach back to the Luwians of the Late Bronze Age. Indigenous Lycian culture was strongly influenced by the Greek culture, but elements of the Anatolian tradition remained in the Lycians’ religious beliefs, burial practices and onomastics until Late Antiquity. Many aspects of Lycian society can therefore only be understood in a regional perspective. In the context of the dissertation ­(finished in 2020, to be published as part of the series Brill Studies in Greek and Roman Epigraphy in 2023s), three central elements of familial life in the Hellenistic and Roman periods were investigated: marriage, ­children and inheritance practices. Literary and legal sources are lacking, but numerous inscriptions, in particular funerary texts, provide valuable information.
description: e-Forschungsberichte, Faszikel 1 (2023)
Emotion regulation and felt security
Creators: name: Marshall, Emma
name: Simpson, Jeffry
name: Overall, Nickola
name: Karantzas, Gery
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: The current study aims to determine how emotion regulation strategies impact felt security within the context of romantic relationships, by using 2 existing mixed method datasets (i.e., datasets that utilise observational and self-report methodologies). More specifically, we want to determine how a person's felt security is impacted by the emotion regulation strategies they use during a conflict discussion and the emotion regulation strategies their partner use.
Resonant transfer of large momenta from finite duration pulse sequences
Creators: name: Fekete, Julia
name: Chai, Shijie
name: Gardiner, Simon A.
name: Andersen, Mikkel F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We experimentally investigate the atom optics kicked particle at quantum resonance using finite duration kicks. Even though the underlying process is quantum interference it can be well described by an $ε$-pseudoclassical model. The $ε$-pseudoclassical model agrees well with our experiments for a wide range of parameters. We investigate the parameters yielding maximal momentum transfer to the atoms and find that this occurs in the regime where neither the short pulse approximation nor the Bragg condition is valid. Nonetheless, the momentum transferred to the atoms can be predicted using a simple scaling law, which provides a powerful tool for choosing optimal experimental parameters. We demonstrate this in a measurement of the Talbot time (from which $h/M$ can be deduced), in which we coherently split atomic wave-functions into superpositions of momentum states that differ by 200 photon recoils. Our work may provide a convenient way to implement large momentum difference beam splitters in atom interferometers.
Determinants Of Export Performance Of Leather And Leather Products Sector In Ethiopia
Creators: name: Gorfu, Lisanework
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Leather and leather products export plays an important role in Ethiopia's economy, influencing the level of economic growth, employment and balance of trade. Given the central role of leather and leather products exports in the economy, it was important to identify the factors affecting leather export. Thus, this paper identify the factors that affect Ethiopia's leather and leather products using gravity model for a sample of 43 trading partners, over a period of 2000-2016. In addition, the paper investigates whether there is unexploited trade potential between Ethiopia and its trading partners within this sector. The empirical results show that importer's GDP, FDI and Ethiopia's domestic infrastructure exert positive and significant impact on leather and leather products exports, while geographical distance had a negative and significant impact. On the other hand, results also point out that market access preference, bilateral real effective exchange rate and Ethiopia's GDP play insignificant role in enhancing exports performance. Furthermore, the analysis shows that export potential exists with 31 of sample countries while 12 destination markets overused. Finally, the paper ends with some policy recommendations aiming at to improve the performance of Ethiopian leather and leather products exports
All-optical hyperpolarization of electron and nuclear spins in diamond
Creators: name: Green, Ben L.
name: Breeze, Ben G.
name: Rees, Gregory J.
name: Hanna, John V.
name: Chou, Jyh-Pin
name: Ivády, Viktor
name: Gali, Adam
name: Newton, Mark E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Low thermal polarization of nuclear spins is a primary sensitivity limitation for nuclear magnetic resonance. Here we demonstrate optically pumped (microwave-free) nuclear spin polarization of $^{13}\mathrm{C}$ and $^{15}\mathrm{N}$ in $^{15}\mathrm{N}$-doped diamond. $^{15}\mathrm{N}$ polarization enhancements up to $-2000$ above thermal equilibrium are observed in the paramagnetic system $\mathrm{N_s}^{0}$. Nuclear spin polarization is shown to diffuse to bulk $^{13}\mathrm{C}$ with NMR enhancements of $-200$ at room temperature and $-500$ at $\mathrm{240~K}$, enabling a route to microwave-free high-sensitivity NMR study of biological samples in ambient conditions.
description: 5 pages, 5 figures
Counterterrorism and Humanitarian Policy in al-Hol Refugee Camp in Syria
Creators: name: Adair, Bianca
name: Ham, Taylor
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: public affairs
Syria
counterterrorism
policy

description: This Policy Research Project evolved as a result of a Spring 2022 course on US Foreign Policy in the Middle East, which sought to explore national security challenges in the region, including the issue of the al-Hol Syrian refugee camp. As concerns with the al-Hol camp evolved, a group of 22 graduate students enrolled in the year-long Policy Research Project to work on solving the issue. First, through academic research that culminated in five literature reviews, students analyzed repatriation, radicalization, deradicalization, forced migration, and ISIL propaganda. By breaking down the issue into pieces that took humanitarianism and security into account, students approached the issue through multidisciplinary perspectives.
Predicting Frequencies of Intrusive Memories: An Exploratory Data-Mining Synthesis Surveying the Roles of Intervention Properties
Creators: name: Millroth, Philip
name: Gamble, Beau
name: Singh, Laura
name: Holmes, Emily
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Clinical Psychology
subject: Psychiatry and Psychology
subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: • This is an exploratory project on existing data from laboratory studies and clinical studies within our research team that have already been identified, extracted, and collated. At the time of preregistration we have not yet analyzed these data. • The study focuses on examining to what extent different properties of working-memory interference task interventions (e.g., duration of reminder cue, type of interference task) can predict frequencies of intrusive memories. • This document is an initial preregistration for the first exploratory analyses planned for this dataset – we may upload additional preregistrations to address further research questions or as the database grows with the addition of future studies.