cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gemini Near Infrared Field Spectrograph Observations of the Seyfert 2 Galaxy Mrk 573: In Situ Acceleration of Ionized and Molecular Gas Off Fueling Flows
Creators: name: Fischer, Travis C.
name: Machuca, Camilo
name: Diniz, Marlon R.
name: Crenshaw, D. Michael
name: Kraemer, Steven B.
name: Riffel, Rogemar A.
name: Schmitt, Henrique R.
name: Baron, Fabien
name: Storchi-Bergmann, Thaisa
name: Straughn, Amber N.
name: Revalski, Mitchell
name: Pope, Crystal L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present near-infrared and optical emission-line and stellar kinematics of the Seyfert 2 galaxy Mrk 573 using the Near-Infrared Field Spectrograph (NIFS) at Gemini North and Dual Imaging Spectrograph (DIS) at Apache Point Observatory, respectively. By obtaining full kinematic maps of the infrared ionized and molecular gas and stellar kinematics in a 700 x 2100 pc^2 circumnuclear region of Mrk 573, we find that kinematics within the Narrow-Line Region (NLR) are largely due to a combination of both rotation and in situ acceleration of material originating in the host disk. Combining these observations with large-scale, optical long-slit spectroscopy that traces ionized gas emission out to several kpcs, we find that rotation kinematics dominate the majority of the gas. We find that outflowing gas extends to distances less than 1 kpc, suggesting that outflows in Seyfert galaxies may not be powerful enough to evacuate their entire bulges.
description: 19 pages, 17 figures, submitted for publication in ApJ
title: Verteilung stabiler Isotope im Grundwasser Nordwestdeutschlands: Untersuchung zum Einfluss von Kontinental‑, Höhen- und Landnutzungseffekt
title: Distribution of stable isotope values in groundwater in Northwestern Germany: Evaluation of continental, altitude and land use effects
titleType: AlternativeTitle
Creators: name: Lehner, Katharina
name: Fröllje, Henning
name: Kubier, Andreas
name: Pichler, Thomas
Publisher: name: Springer
Year: 2019
Subjects: subject: stable water isotopes
subject: Groundwater
subject: Lower Saxony
subject: Continental effect
subject: Altitude effect
subject: 550

description: Diese Arbeit liefert einen Überblick über die Verteilung der stabilen Isotope von Wasserstoff (δ2H) und Sauerstoff (δ18O) im Grundwasser Niedersachsens und Bremens anhand von 133 Grundwasserproben, die mit der Cavity-Ring-Down-Spectroscopy untersucht wurden. Die Ergebnisse zeigen das Auftreten eines Kontinentaleffekts in Nordwest-Südost-Richtung entlang der vorherrschenden Windrichtung mit einer Abreicherung des Isotopensignals im Wasser mit zunehmender Entfernung von der Küste (δ2H: −48,3 ‰; δ18O: −6,8 ‰) ins Landesinnere (δ2H: −56,8 ‰; δ18O: −7,8 ‰) sowie einen vermeintlichen Höheneffekt, der allerdings über eine große räumliche Entfernung auftritt und daher höchstwahrscheinlich nicht real ist, sondern durch den Kontinentaleffekt bestimmt wird. Des Weiteren wird die Abhängigkeit der δ2H- und δ18O-Werte des Grundwassers von der Evaporationsrate deutlich, die ihrerseits von der Bodenporosität und dem Pflanzenbewuchs abhängt und auf unterschiedliche Landnutzung oder das Vorkommen von verschiedenen hydrogeologischen Räumen zurückzuführen ist. Letztgenannte Effekte beeinflussen sich wechselseitig und sind ebenfalls durch den Kontinentaleffekt überprägt.
Highly efficient light-emitting diodes based on intramolecular rotation
Creators: name: Di, Dawei
name: Romanov, Alexander S.
name: Yang, Le
name: Jones, Saul
name: Friend, Richard H.
name: Linnolahti, Mikko
name: Bochmann, Manfred
name: Credgington, Dan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The efficiency of an organic light-emitting diode (OLED) is fundamentally governed by the spin of recombining electron-hole pairs (singlet and triplet excitons), since triplets cannot usually emit light. The singlet-triplet energy gap, a key factor for efficient utilization of triplets, is normally positive. Here we show that in a family of materials with amide donor and carbene acceptor moieties linked by a metal, this energy gap for singlet and triplet excitons with charge-transfer character can be tuned from positive to negative values via the rotation of donor and acceptor about the metal-amide bond. When the gap is close to zero, facile intersystem crossing is possible, enabling efficient emission from singlet excitons. We demonstrate solution-processed LEDs with exceptionally high quantum efficiencies (near-100% internal and >27% external quantum efficiencies), and current and power efficiencies (87 cd/A and 75 lm/W) comparable to, or exceeding, those of state-of-the-art vacuum-processed OLEDs and quantum dot LEDs.
Competitive Adsorption of As(III) and As(V) by Ferrihydrite: Equilibrium, Kinetics, and Surface Complexation
Creators: name: Qi, Pengfei
name: Pichler, Thomas
Publisher: name: Springer
Year: 2016
Subjects: subject: Competitive adsorption
subject: As(III) and As(V)
subject: ferrihydrite
subject: Equilibrium and kinetics
subject: 550

description: The competitive/simultaneous adsorption of arsenite (As(III)) and arsenate (As(V)) onto ferrihydrite is one of main processes controlling the distribution of arsenic under oxidizing conditions in the natural environment. Adsorption reactions of As(III) and As(V) with ferrihydrite were investigated by employing a combination of batch adsorption experiments and Fourier transform infrared (FTIR) spectroscopy measurements in single and binary systems, i.e., both As species were present at the same time. Isotherm studies showed that the adsorption of As(III) in the binary system was less than that in single system, indicating that As(V) hindered As(III) adsorption. The presence of As(III) had almost no impact on As(V) adsorption at pH 5 in the binary systems. Freundlich model described the equilibrium data well (R 2 > 0.94), and the adsorption affinity onto ferrihydrite was in the following order: As(III)-single > As(III)-binary > As(V)-single > As(V)-binary. Kinetic data of As(III) and As(V) from single and binary systems were both well described by pseudo-second-order equation (R 2 > 0.98). FTIR showed that after adsorbing of either As species, a new peak occurred at 826 cm−1 due to the formation of Fe-O-As bonds, indicating that competition between As(III) and As(V) could take place on the surface sites as a result of the formation of a similar surface complexes.
Étale dynamical systems and topological entropy
Creators: name: Truong, Tuyen Trung
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: Algebraic Geometry (math.AG)
subject: General Topology (math.GN)
subject: FOS: Mathematics

description: In this paper, we consider two questions about topological entropy of dynamical systems. We propose to resolve these questions by the same approach of using étale analogs of topological and algebraic dynamical systems. The first question is to define topological entropy for a topological dynamical system $(f,X,Ω)$. The main idea is to make use - in addition to invariant compact subspaces of $(X,Ω)$ - of compactifications of étale covers $π:(f',X',Ω')\rightarrow (f,X,Ω)$, that is $π\circ f'=f\circ π$ and the fibers of $π$ are all finite. We prove some basic results and propose a conjecture, whose validity allows us to prove further results. The second question is to define topological entropy for algebraic dynamical systems, with the requirement that it should be as close to the pullback on cohomology groups as possible. To this end, we develop an étale analog of algebraic dynamical systems.
description: 13 pages. Title changed, exposition and structure of the paper improved. The topological case: The infimum is now taken on all etale covers p :(f',X',\Omega ') ->(f,X,\Omega ), that is when p has finite fibres. This unifies the treatments of both topological and algebraic cases. A conjecture is proposed. The algebraic case: The case when K has positive characteristic is described in more details
An Assessment of Service Delivery Quality in Relation to Customer Satisfaction in Industrial Projects Service
Creators: name: Beyan, Mohammed
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: The Industrial Project Service is a consultancy firm with a capacity to render a wide range of professional consultancy services. Currently the organization is observing signs of customers' dissatisfaction with the service delivery. Thus, understanding customers' satisfaction level and identifying drawbacks are found to be necessary. This project is focused on service quality and customer satisfaction. The objective of the study is to assess and analyze service quality and customer satisfaction, and propose improvement for better service delivery. A quantitative method of analysis was employed. Since this study dwelled upon those customers who have been actively getting IPS service in the last 5 years, a total of 50 customers were taken as a target population. A structured questionnaire was used as an instrument for data collection. Descriptive statistics of means and standard deviations, and mean of customers' expectation and perception gap analysis methodologies were used. This study indicated that in most service quality dimensions the performance of the Industrial Projects Service was below customers' expectation. Majority of customers' expressed that they were not satisfied with the service delivery of the Industrial Project Service. Customers also suggested that in order to improve the service delivery, proper reform should be done on service quality and those observed weaknesses especially on staff and study report areas. Key words: Service Quality, Customer Satisfaction, Customers' Expectation, Customers' Perception, SERVQUAL, Process Quality, Hard Quality, Soft Quality and Outcome Quality
Evaluating Complex Hydrogeological Settings in a Constructed Wetland: An Isotopic/Chemical Mass Balance Approach
Creators: name: Lazareva, Olesya
name: Pichler, Thomas
Publisher: name: Springer
Year: 2011
Subjects: subject: Florida
subject: Stable isotopes
subject: Waste water treatment
subject: Fluid mixing
subject: 550

description: The objective of this study was to investigate the hydrogeological conditions of an artificial wetland, with four possible sources of water: (1) ground water, (2) industrial waste water, (3) seepage from a water body to the north, and (4) seepage from a water body to the south. The wetland was designed to improve the quality of municipal effluent and industrial wastewater. To evaluate and separate the impact of wetland processes from those due to dilution with water from “clean” sources (i.e., rain water or ground water), a combined isotope/chemical mass-balance approach was employed. The δD, δ18O, and Na were monitored for 18 months. Based on the data, the variation of individual proportions of each water type in the wetland and monitor wells was calculated. The isotopic composition of water in the wetland varied throughout the study period changing along the wetland flow path. The wetland contained mainly wastewater (88%–100%) during normal operations; however, hurricanes and inconsistent pumping added low conductivity water directly and triggered enhanced groundwater inflow into the wetland of up to 78%. Finally, the composition of water in monitor wells was mostly groundwater dominated; however seepage from a water body to the north was detected.
Directing search in Metagame
Creators: name: Cron, Danny.
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.
Extremally charged line
Creators: name: Ryzner, Jiří
name: Žofka, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the properties of a static, cylindrically symmetric Majumdar-Papapetrou-type solution of Einstein-Maxwell equations. We locate its singularities, establish its algebraic type, find its asymptotic properties and weak-field limit, study the structure of electrogeodesics, and determine the mass and charge of its sources. We provide an interpretation of the spacetime and discuss the parameter appearing in the metric.
description: 16 pages, 7 figures
Machine learning algorithms to optimize the properties of bio-based poly(butylene succinate-co- butylene adipate) nanocomposites withcarbon nanotubes
Creators: name: Diez Pascual, Ana Maria
name: Champa Bujaico, Elizabeth
name: Garcia Diaz, Pilar
name: Sessini, Valentina
name: Mosquera, Marta E.G.
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 340305
subject: Physical properties of materials
classificationCode: 340799
subject: Theoretical and computational chemistry not elsewhere classified
classificationCode: 460207
subject: Modelling and simulation
classificationCode: 461104
subject: Neural networks

description: A simple, cost-effective and scalable solution to improve the mechanical properties of Poly[(butylene succinate)-co-adipate], PBSA, is reported by using functionalized single-walled carbon nanotubes (SWCNTs). Different SWCNT loadings have been incorporated in the PBSA matrix via simple solution casting, and the ultrasonication conditions have been optimized to attain a homogenous SWCNT dispersion. The nanocomposites have been characterized in detail by scanning electron microscopy (SEM), Infrared spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), tensile and impact strength tests. Unprecedented increments in stiffness were found at low nanotube loadings. Further, four machine learning (ML) algorithms, Polynomial Regression (PR), Support Vector Machines for Regression (SVR), Gradient Boosting (GB) and Artificial Neural Network (ANN), were applied to predict their mechanical properties. The algorithm´s performance was assessed using analytical parameters such as the coefficient of determination (R2), the mean square error (MSE) and the mean absolute error (MAE). The developed models exhibited strong performance, achieving R2 values ranging from 0.69 to 0.99 across the evaluated properties. The results corroborate that even when the same prediction model is used, its performance varies depending on the physical property to be predicted. Thus, SVR, GB, PR, and ANN were found to be the most effective for estimating the Young’s modulus, tensile strength, elongation at break and impact strength, respectively. This research holds great potential for advancing the field of modelling the mechanical properties of polymeric nanocomposites and their practical applications in various industries such as food, pharmaceutical and biomedicine.
Corporate Governance and Financial Performance of Commercial Banks in Ethiopia
Creators: name: Million, Kokeb
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Corporate governance is an old age concept which provides for a set of transparent relationships between an institution's management, its board, shareholders and other stakeholders. This paper investigates the impact of corporate governance mechanisms on firms' financial performance using five years data from the year 2012 to 2016 with total population of the study consists of 19 banks operating in Ethiopia and using purposive sampling technique and select a sample of fifteen Ethiopian commercial banks. Return on asset was used as the financial performance indicator. Corporate governance mechanisms considered in this study include board size, frequency of board meeting, board gender diversity, availability of separate risk management committee in the board, and level of corporate governance disclosure. The study controls the effect of bank size and financial leverage. The Pearson Correlation and the regression analysis were used to find out whether there is a relationship between the corporate governance variables and firms performance. In examining the level of corporate governance disclosures of the sampled banks, content analysis was applied to determine the level of disclosure using un-weighted checklist and a disclosure index was developed by adapted from (Ranti U. O., 2011) which is guided by UNCTAD- ISAR (United Nations Conference on Trade and Development/International Standards of Accounting and Reporting) benchmark of corporate governance disclosure items, the NBE code and OECD code of corporate governance. The study therefore observed that a negative relationship exists between board gender diversity and availability of separate risk management committee and the financial performance of these banks, while a positive relationship was also noticed between frequency of board meeting and performance. Finally, the board size and level of corporate governance disclosure does not have a statistically significant effect. The study suggests that importance of increasing board meetings. Also, steps should be taken to encourage commercial banks to disclose corporate governance information. Keywords: Corporate Governance Mechanisms, Disclosure Index, Financial Performance, Commercial Banks and Ethiopia
A fair rate allocation algorithm for ABR service in ATM networks
Creators: name: Tirtowidjojo, Jojada J.
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.
Correlations in quantum thermodynamics: Heat, work, and entropy production
Creators: name: Alipour, S.
name: Benatti, F.
name: Bakhshinezhad, F.
name: Afsary, M.
name: Marcantoni, S.
name: Rezakhani, A. T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We provide a characterization of energy in the form of exchanged heat and work between two interacting constituents of a closed, bipartite, correlated quantum system. By defining a binding energy we derive a consistent quantum formulation of the first law of thermodynamics, in which the role of correlations becomes evident, and this formulation reduces to the standard classical picture in relevant systems. We next discuss the emergence of the second law of thermodynamics under certain---but fairly general---conditions such as the Markovian assumption. We illustrate the role of correlations and interactions in thermodynamics through two examples.
description: 16 pages
The Effect of Corporate Governance on the Performance of Private Commercial Banks in Ethiopia
Creators: name: Getahun, Tadele
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2007

description: The paper looked at the effects of corporate governance on the financial performance of private commercial banks in Ethiopia. This explanatory study sought to analyze the effect of different corporate governance mechanisms, particularly board size, variety number of internal board sub-committee and meeting frequency on the financial performance of 7 privately owned commercial banks of Ethiopia. The financial performance measure was Return on Asset (ROA). In order to achieve this objective, the study used quantitative research approach that is by adopting quantitative method research approach by documentary analysis of secondary data which was collected from the National Bank of Ethiopia (NBE). And capturing and administrating primary data using unstructured questionnaire which were completed by board secretary and delegated staffs as he/she is in a better position to comment on corporate governance affairs. Panel data covering 13year period from 2004-2016 was analyzed and regression result with recommendation are displayed for the selected 7 private commercial banks. The cross section fixed effect technique has been applied to find out the most significant variables from considered corporate governance variables. The findings indicated that Board size and variety, number of internal board sub-committee had statistically significant negative effect on private commercial bank financial performance and board meeting frequency is negatively insignificant on banks performance. When number of board members and variety number of internal board sub-committee increase, ROA will decrease and there should be optimal number of both. Meeting frequency of board members is insignificant to ROA. Future researchers need to focus on these significant variables and additional corporate governance mechanisms. Keywords: Banking Sector, Private Commercial Bank, Financial Performance, Corporate Governance.
Off- and on-shell harmonic superspaces for 6D SYM theories
Creators: name: Ivanov, Evgeny
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81T60, 70S15

description: It is a brief account of the harmonic superspace formulations of {\cal N}=(1,0) and {\cal N}=(1,1) SYM theories in six dimensions. The on-shell {\cal N}=(1,1) harmonic superspace is argued to provide an efficient tool of constructing candidate counterterms and other invariants of {\cal N}=(1,1) SYM. It allows one, e.g., to find out an essential difference between the single- and double-trace dimension d=10 invariants, which could be capable to explain the absence of the three-loop double-trace (non-planar) counterterms in this theory. The defining superspace constraints of {\cal N}=(1,1) SYM are solved in terms of {\cal N}=(1,0) harmonic superfields.
description: 9 pages, To appear in the Proceedings of the International Conference on Integrable Systems and Quantum Symmetries (ISQS24), 14-18 June 2016, Prague
Empowering Global Collaboration in Structural Biology and Life Sciences
Creators: name: Alexandre, Bonvin
Publisher: name: Zenodo
Year: 2023
Subjects: #Data
#OpenScience
#StructuralBiology
#Haddock
#WeNMR
#ResearchObjects
#EOSCinPractice

description: Structural biology is a field that focuses on understanding the intricate details of biological macromolecules at the atomic level, including their structural and dynamic properties. This knowledge is essential for understanding the majority of cellular processes and has various applications in fields like health and food sciences. The WeNMR initiative aims to provide valuable tools to the structural biology community while ensuring their accessibility in a user-friendly, efficient, and cost-effective manner. The challenge is to execute these tools in a distributed environment that optimizes their utilization, thus benefiting the wider scientific community.
Infrared vertically-illuminated photodiode for chip alignment feedback
Creators: name: Alloatti, Luca
name: Ram, Rajeev Jagga
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on vertically-illuminated photodiodes fabricated in the GlobalFoundries 45nm 12SOI node and on a packaging concept for optically-interconnected chips. The photodiodes are responsive at 1180 nm, a wavelength currently used in chip-to-chip communications. They have further a wide field-of-view which enables chip-to-board positional feedback in chip-board assemblies. Monolithic integration enables on-chip processing of the positional data.
description: 7 pages, 4 figures
Exact solutions and symmetry analysis for the limiting probability distribution of quantum walks
Creators: name: Xu, Xin-Ping
name: Ide, Yusuke
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the literature, there are numerous studies of one-dimensional discrete-time quantum walks (DTQWs) using a moving shift operator. However, there is no exact solution for the limiting probability distributions of DTQWs on cycles using a general coin or swapping shift operator. In this paper, we derive exact solutions for the limiting probability distribution of quantum walks using a general coin and swapping shift operator on cycles for the first time. Based on the exact solutions, we show how to generate symmetric quantum walks and determine the condition under which a symmetric quantum walk appears. Our results suggest that choosing various coin and initial state parameters can achieve a symmetric quantum walk. By defining a quantity to measure the variation of symmetry, deviation and mixing time of symmetric quantum walks are also investigated.
description: 17 pages, 2 figures
Fast full-search equivalent nearest-neighbour search algorithms
Creators: name: Chua, Joselito J. .
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 the kinematic detection of accreted streams in the Gaia era: a cautionary tale
Creators: name: Jean-Baptiste, I.
name: Di Matteo, P.
name: Haywood, M.
name: Gomez, A.
name: Montuori, M.
name: Combes, F.
name: Semelin, B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The $Λ$CDM cosmological scenario predicts that our Galaxy should contain hundreds of stellar streams at the solar vicinity, fossil relics of the merging history of the Milky Way and more generally of the hierarchical growth of galaxies. Because of the mixing time scales in the inner Galaxy, it has been claimed that these streams should be difficult to detect in configuration space but can still be identifiable in kinematic-related spaces like the energy/angular momenta spaces, E-Lz and Lperp-Lz, or spaces of orbital/velocity parameters. By means of high-resolution, dissipationless N-body simulations, containing between 25$\times10^6$ and 35$\times10^6$ particles, we model the accretion of a series of up to four 1:10 mass ratio satellites then up to eight 1:100 satellites and we search systematically for the signature of these accretions in these spaces. In all spaces considered (1) each satellite gives origin to several independent overdensities; (2) overdensities of multiple satellites overlap; (3) satellites of different masses can produce similar substructures; (4) the overlap between the in-situ and the accreted population is considerable everywhere; (5) in-situ stars also form substructures in response to the satellite(s) accretion. These points are valid even if the search is restricted to kinematically-selected halo stars only. As we are now entering the 'Gaia era', our results warn that an extreme caution must be employed before interpreting overdensities in any of those spaces as evidence of relics of accreted satellites. Reconstructing the accretion history of our Galaxy will require a substantial amount of accurate spectroscopic data, that, complemented by the kinematic information, will possibly allow us to (chemically) identify accreted streams and measure their orbital properties. (abridged)
description: Accepted on A&A. A high-resolution version of the paper is available at http://aramis.obspm.fr/~paola/ELZ/Elz.pdf
ELENA Roll-up banner
Creators: name: Amir Ghadimi, Liz Rouiller
Publisher: name: Zenodo
Year: 2022
Subjects: ELENA Lithium Niobate on Insulator; LMOI PICs for Europe

description: The ELENA roll-up banner is a communication tool that serves as an eye-catcher at internal and external events. It provides basic information about the project and is designed to work together with the poster, which provides complementary in-depth information.
Supply Chain Management Practices and Firm Performance in Case of Awash Tannery Plc.
Creators: name: Mohammed, Mustefa
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: Effective supply chain management (SCM) has become a potentially valuable way of securing competitive advantage through enhancing operational and improving organizational performances since competition is no longer between organizations, but among supply chains. This research conceptualizes and develops five dimensions of SCM practice (strategic supplier partnership, customer relationship, level of information sharing, quality of information sharing, and internal lean practices) and tests the relationships between SCM practices, operational performance, and organizational performance. The data for the study was collected from 42 employees of Awash tannery Plc. The relationships proposed in the framework were tested using Pearson correlation, and the causal relations were analyzed using regression analysis. From the result of the analysis it is concluded that there is strong relationship between SCM practices, operational performance and organizational performance. Besides, SCM practices have an influence both on operational performance and organizational performance. On the other hand, operational performance has also an influence on organizational performance. Therefore, in order to achieve advancement in marketing and financial performance in the long-run through enhancing organizational performance, it is better for the organization to give due emphasis to the constructs of SCM practices and the measures of operational performance. Keyword: supply chain management, operational performance, organizational performance
Personal data protection law in Taiwan
Creators: name: Ho, Ching-Hsun.
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.
Social Interactions in Large Networks: A Game Theoretic Approach
Creators: name: Xu, Haiqing
Publisher: name: arXiv
Year: 2016
Subjects: subject: Methodology (stat.ME)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: This paper studies social interactions in a game theoretic model with players in a large social network. We consider observations from one single equilibrium of a large network game with asymmetric information, in which each player chooses an action from a finite set and is subject to interactions with her friends. Simple assumptions about the structure are made to establish the existence and uniqueness of equilibrium. In particular, we show that the equilibrium strategies satisfy a network decaying dependence (NDD) condition requiring that dependence between any two players' decisions decays with their network distance. The formulation of such an NDD property is novel and serves as the basis for statistical inference. Further, we establish the identification of the structural model and introduce a computationally feasible and efficient estimation method. We illustrate the estimation method with an actual application to college attendance, as well as in Monte Carlo experiments.
description: A previous version of this paper was circulated under the title "Social interactions: a game theoretic approach" (2010). This paper was presented at the 2011 Cornell--PSU Macro Seminar, the 2011 North American Econometric Society Summer Meeting, and 2012 Texas Econometrics Camp
The origin of most massive black holes at high-z: BLUETIDES and the next quasar frontier
Creators: name: Di Matteo, Tiziana
name: Croft, Rupert A. C.
name: Feng, Yu
name: Waters, Dacen
name: Wilkins, Stephen
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: The growth of the most massive black holes in the early universe, consistent with the detection of highly luminous quasars at $z> 6$ implies sustained, critical accretion of material to grow and power them. Given a black hole seed scenario, it is still uncertain which conditions in the early Universe allow the fastest black hole growth. Large scale hydrodynamical cosmological simulations of structure formation allow us to explore the conditions conducive to the growth of the earliest supermassive black holes. We use the cosmological hydrodynamic simulation BlueTides, which incorporates a variety of baryon physics in a (400 Mpc/h)^3 volume with 0.7 trillion particles to follow the earliest phases of black hole critical growth. At z=8 the most massive black holes (a handful) approach masses of 10^8 Msun with the most massive (with M_BH = 4 x 10^8 Msun ) being found in an extremely compact spheroid-dominated host galaxy. Examining the large-scale environment of hosts, we find that the initial tidal field is more important than overdensity in setting the conditions for early BH growth. In regions of low tidal fields gas accretes 'cold' onto the black hole and falls along thin, radial filaments straight into the center forming the most compact galaxies and most massive black holes at earliest times. Regions of high tidal fields instead induce larger coherent angular momenta and influence the formation of the first population of massive compact disks. The extreme early growth depends on the early interplay of high gas densities and the tidal field that shapes the mode of accretion. Mergers play a minor role in the formation of the first generation, rare massive BHs.
description: 9 pages, 7 figures, submitted to MNRAS
Effectiv[e]ness of visualization techniques for data mining
Creators: name: Keniya, Hemal Lakhamshi.
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.
Fourier Coefficients for Degenerate Eisenstein Series and the Descending Decomposition
Creators: name: Cai, Yuanqing
Publisher: name: arXiv
Year: 2016
Subjects: subject: Representation Theory (math.RT)
subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 11F30, 11F70, Secondary 05E10, 22E50, 22E55

description: We determine the unipotent orbits attached to degenerate Eisenstein series on general linear groups. This confirms a conjecture of David Ginzburg. This also shows that any unipotent orbit of general linear groups does occur as the unipotent orbit attached to a specific automorphic representation. The key ingredient is a root-theoretic result. To prove it, we introduce the notion of the descending decomposition, which expresses every Weyl group element as a product of simple reflections in a certain way. It is suitable for induction and allows us to translate the question into a combinatorial statement.
Crystallographic orientation and induced potential effects in photoelectron emission from metal surfaces by ultrashort laser pulses
Creators: name: Rubiano, C. A. Rios
name: Della Picca, R.
name: Mitnik, D. M.
name: Silkin, V. M.
name: Gravielle, M. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The influence of the crystallographic orientation of a typical metal surface, like aluminum, on electron emission spectra produced by grazing incidence of ultrashort laser pulses is investigated by using the band-structure-based-Volkov (BSB-V) approximation. The present version of the BSB-V approach includes not only a realistic description of the surface interaction, accounting for band structure effects, but also effects due to the induced potential that originates from the collective response of valence-band electrons to the external electromagnetic field. The model is applied to evaluate differential electron emission probabilities from the valence band of Al(100) and Al(111). For both crystallographic orientations, the contribution of partially occupied surface electronic states and the influence of the induced potential are separately analyzed as a function of the laser carrier frequency. We found that the induced potential strongly affects photoelectron emission distributions, opening a window to scrutinize band structure effects.
description: 10 pages, 7 figures
The red dwarf pair GJ65AB: inflated, spinning twins of Proxima
Creators: name: Kervella, P.
name: Mérand, A.
name: Ledoux, C.
name: Demory, B. -O.
name: Bouquin, J. -B. Le
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The nearby red dwarf binary GJ65AB (UB+BL Ceti, M5.5Ve+M6Ve) is a cornerstone system to probe the physics of very low mass stars. We present new interferometric measurements of the angular diameters of the two components of GJ65AB with the PIONIER instrument in the H band: thetaUD (A) = 0.558 +/- 0.008 +/- 0.020 mas and thetaUD (B) = 0.539 +/- 0.009 +/- 0.020 mas. They translate into limb-darkened angular diameters of LD (A) = 0.573 +/- 0.021 mas and LD (B) = 0.554 +/- 0.022 mas. From the known parallax, the radii are R(A) = 0.165 +/- 0.006 Rsun and R(B) = 0.159 +/- 0.006 Rsun (sigma(R)/R = 4%). We also observed GJ65AB with the VLT/NACO adaptive optics and refine the orbital parameters and infrared magnitudes of the system. We derive masses for the two components of m(A) = 0.1225 +/- 0.0043 Msun and m(B) = 0.1195 +/- 0.0043 Msun (sigma(m)/m = 4%). To derive the radial and rotational velocities of the two stars, as well as their relative metallicity with respect to Proxima, we also present new individual UVES high resolution spectra. Placing GJ65 A&B in the mass-radius diagram shows that their radii are larger respectively by 14 +/- 4% and 12 +/- 4% compared to expectations from the models by Baraffe et al. (2015). Following Chabrier et al. (2007), we propose that this discrepancy is caused by the inhibition of convective energy transport by a strong internal magnetic field generated by dynamo effect in these two fast rotating stars. A comparison with the almost identical twin but slowly-rotating Proxima strengthens this hypothesis, as the radius of Proxima does not appear inflated compared to models.
description: 12 pages, 10 pages, A&A in press, correction of an error in the Galactic space velocity computation in Table 4
Towards an EBRAINS service for brain wave analysis: Cobrawap
Creators: name: Lupo, Cosimo
name: Bernava, Irene
name: Gutzen, Robin
name: Pastorelli, Elena
name: Capone, Cristiano
name: De Luca, Chiara
name: Allegra Mascaro, Anna Letizia
name: Resta, Francesco
name: Manasanch, Arnau
name: Karvounari, Sofia
name: Mathioulaki, Eleni
name: Pavone, Francesco Saverio
name: Sanchez-Vives, Maria V.
name: Mattia, Maurizio
name: Gruen, Sonja
name: Davison, Andrew
name: Paolucci, Pier Stanislao
name: Denker, Michael
name: De Bonis, Giulia
Publisher: name: Zenodo
Year: 2023

description: The current variety of data from neuronal recordings, collected with heterogeneous experimental techniques and setups, poses the challenge to consistently compare data across experiments, species, and spatio-temporal scales, and to provide standardized metrics for model validation and calibration. In the context of brain wave analysis, Cobrawap (Collaborative Brain Wave Analysis Pipeline) is a successful tool, built to achieve these goals. Aiming at a wider diffusion and at facilitating the usage of this tool for an extended community of users, we are pointing at providing Cobrawap as a service accessible through the EBRAINS web portal, leveraging computational resources from High-Performance Computing (HPC) platforms belonging to the FENIX-ICEI federation.
description: Progetto EBRAINS-Italy IR00011, CUP B51E2200015006,Missione 4 - Istruzione e Ricerca, Componente 2, Azione 3.1.1 Funded by EU.
On a non-homogeneous eigenvalue problem involving a potential: an Orlicz-Sobolev space setting
Creators: name: Mihăilescu, Mihai
name: Rădulescu, Vicenţiu
name: Repovš, Dušan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35D05, 35J60, 35J70, 58E05, 68T40, 76A02

description: In this paper we study a non-homogeneous eigenvalue problem involving variable growth conditions and a potential $V$. The problem is analyzed in the context of Orlicz-Sobolev spaces. Connected with this problem we also study the optimization problem for the particular eigenvalue given by the infimum of the Rayleigh quotient associated to the problem with respect to the potential $V$ when $V$ lies in a bounded, closed and convex subset of a certain variable exponent Lebesgue space.
Internet access technologies for home users
Creators: name: Wijaya, Agus.
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.
Staff Turnover in International Non-Governmental Organizations (NGOs): A Case Study of International Rescue Committee (IRC)
Creators: name: Debebe, Yared
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2007

description: This project paper aims to analyze the staff turnover of international non governmental organizations (NGO) and particularly the case of the International Rescue Committee (IRC). Non government non profit organizations are one type of the institutions that provide employment opportunities in addition to the private sectors and government institutions. The success of NGOs is determined by the availability and commitment of efficient and effective human resources. However, currently most of the NGOs are highly affected by staff turnover and therefore the quality of the service they provide to the beneficiaries is affected and the financial and non-financial cost of replacing vacant posts is significantly increased. In order to identify the causes and impact of the staff turnover in IRC, the project has used both primary and secondary data. With regard to primary data, first hand data have been collected through questionnaire filled by twelve terminated, thirty one existing non-management and seven management staffs of the organization selected based purposive sampling. Moreover data about the trend of both existing and terminated staff were collected from the organization. IRC (An American NGO) was founded at the suggestion of Albert Einstein in 1933 with the objective to assist Germans suffering under Hitler. Currently it works in twenty five countries and fifteen are found in Africa. IRC Ethiopia program has started in 2000 in response to the severe drought in Somali Region. With 209 permanent employees IRC Ethiopia participate in education and Community service, Environmental Health (Water and Sanitation), Health, and other sectors in the four refugee camps and local communities. Since from the period 2004/2005 to 2006/2007 the total number of staffs terminated from the IRC is counted to 89. However, though the organization does not keep detailed record for each resigned/terminated staffs, the total number of terminated staffs since from establishment is around 174. This indicates that the organization has lost almost 45% (174 out of 383) of its employees due to different reasons. The analysis of the three year period figures portray that most of the employees are terminated /resigned from the IRC during the first months of their employment period. Of the total terminated 89 employees, the highest share of terminated staff based on position is counted for the Officer and Assistant positions. Regarding termination based on filed office Assosa and department Education and Community service takes the lion shares.The findings of the study also revealed that the causes of staff turnover are a combination of factors. Family problems, poor leadership, dissatisfaction with the job, better opportunity in other organizations, dissatisfaction with the area, and educational opportunity are some of the causes. Based on the findings recommendations are suggested.
A Reverse Shock in GRB 160509A
Creators: name: Laskar, Tanmoy
name: Alexander, Kate D.
name: Berger, Edo
name: Fong, Wen-fai
name: Margutti, Raffaella
name: Shivvers, Isaac
name: Williams, Peter K. G.
name: Kopac, Drejc
name: Kobayashi, Shiho
name: Mundell, Carole
name: Gomboc, Andreja
name: Zheng, WeiKang
name: Menten, Karl M.
name: Graham, Melissa L.
name: Filippenko, Alexei V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the second multi-frequency radio detection of a reverse shock in a $γ$-ray burst. By combining our extensive radio observations of the Fermi-LAT GRB 160509A at $z = 1.17$ up to $20$ days after the burst with Swift X-ray observations and ground-based optical and near-infrared data, we show that the afterglow emission comprises distinct reverse shock and forward shock contributions: the reverse shock emission dominates in the radio band at $\lesssim10~$days, while the forward shock emission dominates in the X-ray, optical, and near-infrared bands. Through multi-wavelength modeling, we determine a circumburst density of $n_0\approx10^{-3}~$cm$^{-3}$, supporting our previous suggestion that a low-density circumburst environment is conducive to the production of long-lasting reverse shock radiation in the radio band. We infer the presence of a large excess X-ray absorption column, $N_{\rm H} \approx 1.5\times10^{22}~$cm$^{-2}$, and a high rest-frame optical extinction, $A_{\rm V}\approx3.4~$mag. We identify a jet break in the X-ray light curve at $t_{\rm jet}\approx6~$d, and thus derive a jet opening angle of $θ_{\rm jet}\approx4~$deg, yielding a beaming-corrected kinetic energy and radiated $γ$-ray energy of $E_{\rm K}\approx4\times10^{50}~$erg and $E_γ\approx1.3\times10^{51}~$erg ($1$-$10^4~$keV, rest frame), respectively. Consistency arguments connecting the forward and reverse shocks suggest a deceleration time of $t_{\rm dec} \approx 460~$s$~\approx T_{90}$, a Lorentz factor of $Γ(t_{\rm dec})\approx330$, and a reverse shock to forward shock fractional magnetic energy density ratio of $R_{\rm B}\equivε_{\rm B,RS}/ε_{\rm B,FS}\approx8$.
description: 8 pages, 2 tables, 4 figures. Submitted to ApJ
Strategic issues of Internet Commerce and the role of Internet Electronic Document Interchange and ActiveX components in facilitating organisations to conduct business electronically using the internet
Creators: name: Trinh, Dung Quoc .
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.