cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Development of a digital airborne position and speed indicator system
Creators: name: Chin, David T. F.
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.
A minimal model for spontaneous cell polarization and edge activity in oscillating, rotating and migrating cells
Creators: name: Raynaud, Franck
name: Ambuhl, Mark E.
name: Gabella, Chiara
name: Bornert, Alicia
name: Sbalzarini, Ivo F.
name: Meister, Jean-Jacques
name: Verkhovsky, Alexander B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: How the cells break symmetry and organize their edge activity to move directionally is a fun- damental question in cell biology. Physical models of cell motility commonly rely on gradients of regulatory factors and/or feedback from the motion itself to describe polarization of edge activity. Theses approaches, however, fail to explain cell behavior prior to the onset of polarization. Our analysis using the model system of polarizing and moving fish epidermal keratocytes suggests a novel and simple principle of self-organization of cell activity in which local cell-edge dynamics depends on the distance from the cell center, but not on the orientation with respect to the front-back axis. We validate this principle with a stochastic model that faithfully reproduces a range of cell-migration behaviors. Our findings indicate that spontaneous polarization, persistent motion, and cell shape are emergent properties of the local cell-edge dynamics controlled by the distance from the cell center.
description: 8 pages, 5 figures
MPEC 2024-Q85 : 2024 QS1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 QS1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Least Cost Influence Maximization Across Multiple Social Networks
Creators: name: Zhang, Huiyuan
name: Nguyen, Dung T.
name: Das, Soham
name: Zhang, Huiling
name: Thai, My T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Recently in Online Social Networks (OSNs), the Least Cost Influence (LCI) problem has become one of the central research topics. It aims at identifying a minimum number of seed users who can trigger a wide cascade of information propagation. Most of existing literature investigated the LCI problem only based on an individual network. However, nowadays users often join several OSNs such that information could be spread across different networks simultaneously. Therefore, in order to obtain the best set of seed users, it is crucial to consider the role of overlapping users under this circumstances. In this article, we propose a unified framework to represent and analyze the influence diffusion in multiplex networks. More specifically, we tackle the LCI problem by mapping a set of networks into a single one via lossless and lossy coupling schemes. The lossless coupling scheme preserves all properties of original networks to achieve high quality solutions, while the lossy coupling scheme offers an attractive alternative when the running time and memory consumption are of primary concern. Various experiments conducted on both real and synthesized datasets have validated the effectiveness of the coupling schemes, which also provide some interesting insights into the process of influence propagation in multiplex networks.
description: 21 pages, published in IEEE/ACM Transactions on Networking
Electronic Commerce: Opportunities and Challenges of general importers in Addis Ababa
Creators: name: Asrie, Belaynew
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2012

description: Advances in information technology have created great opportunities as well as threats to organizations in various business sectors. Though adoption of ecommerce is considered to provide substantial benefits to business; many general importers in Ethiopia still have not realized to adopt electronic commerce due to different factors. Identifying the main opportunities and challenges and suggests suitable strategies to promote e-commerce are the basic purpose of this research. To attain the objective, data for the study were obtained from sample of 203 general importers from total of 748 which are found in Addis Ababa and had collect data basically from primary sources. To do so questionnaire was designed and distributed to the top level managers of the selected companies. This study used descriptive survey research designs. The data collected was analyzed with the help of Microsoft Excel software packages. The empirical findings show that, although the country registered two digit economic growths, with stable political climate, the banking, ICT and Ecommerce practice in Ethiopia are underdeveloped. Dominant barriers that highly hinder e-commerce adoption are; lack of skilled workers, Fear of risk security and privacy, lack of e-commerce infrastructure. The government of Ethiopia should formulate strategies that enhance the e-commerce infrastructure and enabling policy environment by involving full participation of all stakeholders, develop awareness raising campaigns. Finally, service provider and customer should sign service level agreements.
Raise and collapse of strain-induced pseudo-Landau levels in graphene
Creators: name: Castro, Eduardo V.
name: Cazalilla, Miguel A.
name: Vozmediano, María A. H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Lattice deformations couple to the low energy electronic excitations of graphene as vector fields similar to the electromagnetic potential \cite{SA02b,VKG10}. The suggestion that certain strain configurations would be able to induce pseudo landau levels in the spectrum of graphene \cite{GKG10,GGKN10}, and the subsequent experimental observation of these \cite{LBetal10} has been one of the most exciting events in an already fascinating field. It opened a new field of research "straintronics" linked to new applications, and had a strong influence on the physics of the new Dirac materials in two and three dimensions \cite{Amorim16}. The experimental observation of pseudo landau levels with scanning tunnel microscopy presents nevertheless some ambiguities. Similar strain patterns show different images sometimes difficult to interpret. In this work we strain the analogy of the pseudo versus real electromagnetic fields, as well as the fact that graphene has a relativistic behavior and show that, for some strain configurations, the deformation potential acts like a parallel electric field able to destabilize the Landau level structure via a mechanism identical to that described in \cite{LSB07,PC07} for real electromagnetic fields. The underlying physics is the combination of Maxwell electrodynamics and special relativity implying that different reference frames observe different electromagnetic fields \cite{LSB07}. The mechanism applies equally if the electric field has an external origin, which opens the door to an electric control of the giant pseudomagnetic fields in graphene.
description: 5 pages, 2 figures
Distribution of Formation and migration energies of point defects in concentrated solid-solution alloys: Ni_{0.5}Co_{0.5}, Ni_{0.5}Fe_{0.5}, Ni_{0.8}Fe_{0.2} and Ni_{0.8}Cr_{0.2}
Creators: name: Zhao, Shijun
name: Stocks, G. Malcolm
name: Zhang, Yanwen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using ab initio calculations and special quasirandom structures, we have characterized the distribution of defect formation energy and migration barrier in Ni-based solid-solution alloys: Ni_{0.5}Co_{0.5}, Ni_{0.5}Fe_{0.5}, Ni_{0.8}Fe_{0.2} and Ni_{0.8}Cr_{0.2}. As defect formation energies depend sensitively on elemental chemical potential, we have developed a computationally efficient method for determining it which takes into account the global composition and local short-range order. We find that Fe has the biggest alloy effects for Ni among these four elements. Our results show that the distribution of migration energies for vacancies and interstitial have a region of overlap, which will facilitate the recombination between them.
Vertical radiation pattern shaping for VOR type structures
Creators: name: Jenvey, S. C.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Time and Space Optimal Counting in Population Protocols
Creators: name: Aspnes, James
name: Beauquier, Joffroy
name: Burman, Janna
name: Sohier, Devan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: This work concerns the general issue of combined optimality in terms of time and space complexity. In this context, we study the problem of (exact) counting resource-limited and passively mobile nodes in the model of population protocols, in which the space complexity is crucial. The counted nodes are memory-limited anonymous devices (called agents) communicating asynchronously in pairs (according to a fairness condition). Moreover, we assume that these agents are prone to failures so that they cannot be correctly initialized. This study considers two classical fairness conditions, and for each we investigate the issue of time optimality of counting given the optimal space per agent. In the case of randomly interacting agents (probabilistic fairness), as usual, the convergence time is measured in terms of parallel time (or parallel interactions), which is defined as the number of pairwise interactions until convergence, divided by n (the number of agents). In case of weak fairness, where it is only required that every pair of agents interacts infinitely often, the convergence time is defined in terms of non-null transitions, i.e, the transitions that affect the states of the interacting agents.First, assuming probabilistic fairness, we present a "non-guessing" time optimal protocol of O(n log n) expected time given an optimal space of only one bit, and we prove the time optimality of this protocol. Then, for weak fairness, we show that a space optimal (semi-uniform) solution cannot converge faster than in $Ω$(2^n) time (non-null transitions). This result, together with the time complexity analysis of an already known space optimal protocol, shows that it is also optimal in time (given the optimal space constrains).
Multi-region relaxed Hall magnetohydrodynamics with flow
Creators: name: Lingam, Manasvi
name: Abdelhamid, Hamdi M.
name: Hudson, Stuart R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The recent formulations of multi-region relaxed magnetohydrodynamics (MRxMHD) have generalized the famous Woltjer-Taylor states by incorporating a collection of "ideal barriers" that prevent global relaxation, and flow. In this paper, we generalize MRxMHD with flow to include Hall effects (MRxHMHD), and thereby obtain the partially relaxed counterparts of the famous double Beltrami states as a special subset. The physical and mathematical consequences arising from the introduction of the Hall term are also presented. We demonstrate that our results (in the ideal MHD limit) constitute an important subset of ideal MHD equilibria, and we compare our approach against other variational principles proposed for deriving the partially relaxed states.
description: 10 pages, 0 figures, published in Phys. Plasmas
Polarization measurement analysis III. Analysis of the polarization angle dispersion function with high precision polarization data
Creators: name: Alina, D.
name: Montier, L.
name: Ristorcelli, I.
name: Bernard, J. -P.
name: Levrier, F.
name: Abdikamalov, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: High precision polarization measurements open new opportunities for the study of the magnetic field structure as traced by polarimetric measurements of the interstellar dust emission. Polarization parameters suffer from bias in the presence of measurement noise. It is critical to take into account all the information available in the data in order to accurately derive these parameters. The goal of this paper is to characterize the bias on the polarization angle dispersion function that is used to study the spatial coherence of the polarization angle. We characterize, for the first time, the bias on the conventional estimator of the polarization angle dispersion function (S hereafter) and show that it can be positive or negative depending on the true value. Monte Carlo simulations are performed in order to explore the impact of the noise properties of the polarization data, as well as the impact of the distribution of the true polarization angles on the bias. We show that in the case where the ellipticity of the noise in (Q, U) varies by less than 10 percent, one can use simplified, diagonal approximation of the noise covariance matrix. In other cases, the shape of the noise covariance matrix should be taken into account in the estimation of S. We also study new estimators such as the dichotomic and the polynomial estimators. Though the dichotomic estimator cannot be directly used to estimate S, we show that, on the one hand, it can serve as an indicator of the accuracy of the conventional estimator and, on the other hand, it can be used for deriving the polynomial estimator. We propose a method for determining the upper limit of the bias on the conventional estimator of S. The method is applicable to any linear polarization data set for which the noise covariance matrices are known.
description: 12 pages, 12 figures. Accepted for publication to Astronomy & Astrophysics
Stoquastic Hamiltonians and the Monte Carlo sign problem
Creators: name: Ioannou, Marios
Publisher: name: Zenodo
Year: 2019
Subjects: Stoquastic Hamiltonians, Sign problem, Monte Carlo, computational complexity

description: Masters Thesis on the Monte Carlo sign problem and stoquastic Hamiltonians Author: Marios Ioannou Supervisor: Prof. Barbara Terhal
Optimisation of the use of imported softwood chemical pulp at APPM Burnie Mill
Creators: name: Miller, Paul.
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.
Assessment of the Motor Third Party Compulsory Insurance Practices and Challenges: the case of selected Insurance Companies in Ethiopia
Creators: name: Debela, Habtamu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Rarely a week goes by without a motor accident featuring in the national press, often as headline news. Some of these are considered newsworthy simply due to unusual circumstances and can be quite minor, whilst others are tragic events involving death and serious injury and loss of property. The Ethiopian Government promulgated Motor Third Party Compulsory Insurance (MTPCI) law under proclamation 559/2008 with the aim of laying down a mechanism to alleviate economic loss as a result of road accident. The MTPCI in Ethiopia came into effect on 11th September 2011. The proclamation was revised after two years in service by Proclamation No. 799/2013. This paper tried to assess the practice and implementation of the legislation with insurance companies and IFAA. In order to address the research problem, both quantitative and qualitative research approaches were used and also considered both primary and secondary data. From the findings it was observed that the performance of MTPCI with both insurers and IFAA was very profitable but not well understood. The tariff premium collected by IFAA was found to be at high side compared against the payouts for hit & run and medical expenses. The EMT case was not as smooth as required and its performance was still far behind schedule. Moreover, according to the finding, there had been many operational disparities with companies including but not limited to declining both cover and claim.
Arctic biodiversity, climate and food security
Creators: name: Heerema, Sabrina
name: Burgess, Philip
name: Lebel, Julien
name: Jungblut, Simon
Publisher: name: Zenodo
Year: 2023
Subjects: flyer
policy brief

description: ECOTIP, FACE-IT and CHARTER are three EU-funded projects that are researching biodiversity in relation to ice loss in the Arctic and have coordinated recommendations based on the preliminary results from the projects that are relevant to strategies being developed by the European Union and other international organisations in relation to the climate change and biodiversity crises. More specifically, information that is relevant for the EU's Arctic policy, EU missions and the Green Deal, as well as the work of IPCC and IPBES.
description: These projects have received funding from the European union's Horizon 2020 Research and Innovation programme under grant agreements 869383 (EcoTip), 869154 (FACE-IT) and 869471 (CHARTER).
Time-Correlated Blip Dynamics of Open Quantum Systems
Creators: name: Wiedmann, Michael
name: Stockburger, Jürgen T.
name: Ankerhold, Joachim
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The non-Markovian dynamics of open quantum systems is still a challenging task, particularly in the non-perturbative regime at low temperatures. While the Stochastic Liouville-von Neumann equation (SLN) provides a formally exact tool to tackle this problem for both discrete and continuous degrees of freedom, its performance deteriorates for long times due to an inherently non-unitary propagator. Here we present a scheme which combines the SLN with projector operator techniques based on finite dephasing times, gaining substantial improvements in terms of memory storage and statistics. The approach allows for systematic convergence and is applicable in regions of parameter space where perturbative methods fail, up to the long time domain. Findings are applied to the coherent and incoherent quantum dynamics of two- and three-level systems. In the long time domain sequential and super-exchange transfer rates are extracted and compared to perturbative predictions.
description: 13 pages, 18 figures
title: Reflektierender Dialog
title: DigitUS Handout
titleType: Subtitle
Creators: name: Reith, Sabrina
name: Berger, Sonja
name: Bannert, Maria
name: Stegmann, Karsten
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2022

description: Handout mit Reflexionsfragen bezüglich des Lernprozesses bei der Bearbeitung der Lernzirkel zum ICAP- und SRL-Modell, sowie Diskussionsfragen zur Implementierung der Inhalte in die Unterrichtspraxis (mit und ohne Musterlösung)
Formation of NOx and SOx precursors during the pyrolysis of coal and biomass
Creators: name: Tan, Li Lian.
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.
Carbon stars from LAMOST DR2 data
Creators: name: Ji, Wei
name: Cui, Wenyuan
name: Liu, Chao
name: Luo, Ali
name: Zhao, Gang
name: Zhang, Bo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this work, we present the new catalog of carbon stars from the LAMOST DR2 catalog. In total, 894 carbon stars are identified from multiple line indices measured from the stellar spectra. Combining the CN bands in the red end with \ctwo\ and other lines, we are able to identify the carbon stars. Moreover, we also classify the carbon stars into spectral sub-types of \ch, \CR, and \cn. These sub-types approximately show distinct features in the multi-dimensional line indices, implying that in the future we can use them to identify carbon stars from larger spectroscopic datasets. Meanwhile, from the line indices space, while the \cn\ stars are clearly separated from the others, we find no clear separation between \CR\ and \ch\ sub-types. The \CR\ and \ch\ stars seem to smoothly transition from one to another. This may hint that the \CR\ and \ch\ stars may not be different in their origins but look different in their spectra because of different metallicity. Due to the relatively low spectral resolution and lower signal-to-noise ratio, the ratio of $^{12}$C/$^{13}$C is not measured and thus the \cj\ stars are not identified.
description: 34 pages, 19 figures, accepted for publication in ApJS
Determinants and Management of Credit Risk in Micro Finance Institutions: Empirical Study on Selected MFIs in Ethiopia
Creators: name: Selamsew, Yohannes
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2012

description: Credit risk is one of the risks any financial institution is exposed for; managing their credit risk will be the key to their financial sustainability. The general objective of this research is to determine the factors influencing Ethiopian Micro finance institutions credit risk, management of credit risk of major Ethiopian MFIs, and an entire review of the management techniques and practices on credit risk management. The researcher used a mixed approach study where the quantitative data show the determinants of credit risk and the qualitative data describes the causes, techniques and other things related with credit risk which is better described qualitatively. In total ten years data of ten MFIs were used to make an econometrics model and five structured interviews are administered to collect the qualitative data. The finding suggest that five variables i.e. loan to deposit ratio, average loan per borrower, total assets, leverage, and management efficiency are significantly affecting the credit risk, and their credit risk arises from different aspects that can be seen from three perspective i.e. external and internal factors, borrowers and lenders characteristics, and firm and loan characteristics. Although, Ethiopian MFIs have different techniques that are used to manage their credit risk.
The impact of transformational school leadership on school staff and school culture in primary schools—a systematic review of international literature
Creators: name: Wilson Heenan, Inez
name: de Paor, Derbhile
name: Lafferty, Niamh
name: MANNIX-MC NAMARA, PATRICIA
Publisher: name: University of Limerick
Year: 2023
Subjects: Education

description: The purpose of this review is to examine transformational school leadership, responding to the question: ‘What is the research evidence in the international literature pertaining to the impact of transformational school leadership in primary schools on school staff and school culture?’. This review presents a synthesis of 15 studies performed between 2012 to 2022. The data are presented within a framework constructed from the dimensions and characteristics of transformational school leadership. They show transformational school leadership as a positive leadership style with a close interconnection between positive impact of transformational school leadership for school staff and for an enhanced school culture. An increased motivation in staff and the fostering of more positive school culture were found to be the leading impacts of transformational leadership on school staff and culture in this systematic literature review.
Stellar classification of CoRoT targets
Creators: name: Damiani, C.
name: Meunier, J. -C.
name: Moutou, C.
name: Deleuil, M.
name: Ysard, N.
name: Baudin, F.
name: Deeg, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The CoRoT faint stars channel observed about 163 600 targets to detect transiting planetary companions. Because CoRoT targets are faint (11< r <16) and close to the galactic plane, only a small subsample has been observed spectroscopically. We describe the latest classification scheme used to derive the spectral type of CoRoT targets, which is based on broadband multi-colour photometry. We assess the accuracy of this spectral classification for the first time. We find that the classification method performs better for stars that were observed during the mission-dedicated photometric ground-based campaigns.The luminosity class is wrong for less than 7% of the targets. Generally, the effective temperature of stars classified as early type (O, B, and A) is overestimated. Conversely, the temperature of stars classified as later type tends to be underestimated. This is mainly due to the adverse effect of interstellar reddening. We find that the median error on the effective temperature is less than 5% for dwarf stars classified with a spectral later than F0, but it is worse for earlier type stars, with up to 20\% error for A and late-B dwarfs, and up to 70% for early-B and O-type dwarfs. Similar results are found for giants, with a median error that is lower than 7% for G- and later type giants, but greater than 25% for earlier types. Overall, we find an average median absolute temperature difference |Delta Teff| = 533+\-6 K for the whole sample of stars classified as dwarfs and |Delta Teff| = 280+\-3 K for the whole sample of giant stars. The corresponding standard deviation is of about 92+\-5 K for dwarfs and 304+\-4 K for giants. Typically for late-type stars, this means that the classification is accurate to about half a class.
description: 24 pages, 30 figures, accepted for publication in A&A
Assessment of Adoption of Agency Banking Innovation in Ethiopia: Barriers and Drivers
Creators: name: Gugsa, Afework
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: This research project aims to describe factors that affect the adoption of agency banking in Ethiopian banking industry with respect to the barriers and benefits derived from adopting the system. In order to achieve the objective of this study and answer the research questions the researcher adopted quantitative research approach. This descriptive study was conducted based on the data gathered from the following four banks in Ethiopia; Dashen Bank, United Bank, Lion International Bank and Cooperative Bank of Oromia. The data collected was analyzed using descriptive statistics. A research framework developed based on the Technology - Organization - Environment (TOE) framework and Technology Acceptance Model (TAM) was used to guide the study. The study revealed the following major driving factors in adopting agency banking among commercial banks in Ethiopia; the prospects of cost reduction, availing services beyond restriction of space and time through established third party with the application of technology. The benefits were also classified as Perceived Ease of Use (PEOU) and Perceived Usefulness (PU). The barriers identified in this study came from the external environments like; lack of legal framework, under developed ICT infrastructure including poor network connectivity, lack of competition among banks and lack of sufficient government support, security risk and lack of customer trust towards the service. The study recommended banks to consider technology based competition focusing on customer base expansion, cost reduction, awareness creation, credibility, security, ease of use, and availability to exploit the benefit of agency banking while the government should support banking sector by facilitating sufficient ICT infrastructure development and issue workable legal frameworks to ease the adoption of agency banking system. Keywords: Banking industry, Agency banking, Mobile Banking, Adoption of Agency Banking by Ethiopian Banks, Branchless banking
A Young Eclipsing Binary and its Luminous Neighbors in the Embedded Star Cluster Sh 2-252E
Creators: name: Lester, Kathryn V.
name: Gies, Douglas R.
name: Guo, Zhao
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a photometric and light curve analysis of an eccentric eclipsing binary in the K2 Campaign 0 field that resides in Sh 2-252E, a young star cluster embedded in an H II region. We describe a spectroscopic investigation of the three brightest stars in the crowded aperture to identify which is the binary system. We find that none of these stars are components of the eclipsing binary system, which must be one of the fainter nearby stars. These bright cluster members all have remarkable spectra: Sh 2-252a (EPIC 202062176) is a B0.5 V star with razor sharp absorption lines, Sh 2-252b is a Herbig A0 star with disk-like emission lines, and Sh 2-252c is a pre-main sequence star with very red color.
description: Accepted for publication in The Astronomical Journal; 21 pages, 9 figures
A 2D Stress Tensor for 4D Gravity
Creators: name: Kapec, Daniel
name: Mitra, Prahar
name: Raclariu, Ana-Maria
name: Strominger, Andrew
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use the subleading soft-graviton theorem to construct an operator $T_{zz}$ whose insertion in the four-dimensional tree-level quantum gravity $\mathcal{S}$-matrix obeys the Virasoro-Ward identities of the energy momentum tensor of a two-dimensional conformal field theory (CFT$_2$). The celestial sphere at Minkowskian null infinity plays the role of the Euclidean sphere of the CFT$_2$, with the Lorentz group acting as the unbroken $SL(2,\mathbb{C})$ subgroup.
description: 12 pages. v2: updated acknowledgements
New tools to reduce radiation exposure during aortic endovascular procedures
Creators: name: Klaassen, Jurre
name: Vijn, Linde J.
name: Hazenberg, Constantijn E.V.B.
name: van Herwaarden, Joost A.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: The evolution of endovascular surgery over the past 30 years has made it possible to treat increasingly complex vascular pathologies with an endovascular method. Although this generally speeds up the patient’s recovery, the risks of health problems caused by long-term exposure to radioactive radiation increase. This warrants the demand for radiation-reducing tools to reduce radiation exposure during these procedures. For this systematic review Pubmed, Embase and Cochrane library databases were searched on 28 December 2021 to provide an overview of tools that are currently used or have the potential to contribute to reducing radiation exposure during endovascular aortic procedures. In addition, an overview is presented of radiation characteristics of clinical studies comparing a (potential) radiation-reducing device with conventional fluoroscopy use. Radiation-reducing instruments such as fiber optic shape sensing or electromagnetic tracking devices offer the possibility to further reduce or even eliminate the use of radiation during endovascular procedures. In an era of increasing endovascular interventional complexity and awareness of the health risks of long-term radiation exposure, the use of these technologies could have a major impact on an ongoing challenge to move toward radiation-free endovascular surgery.
Estimation of a discrete probability under constraint of k-monotony
Creators: name: Giguelay, Jade
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We propose two least-squares estimators of a discrete probability under the constraint of k-monotony and study their statistical properties. We give a characterization of these estimators based on the decomposition on a spline basis of k-monotone sequences. We develop an algorithm derived from the Support Reduction Algorithm and we finally present a simulation study to illustrate their properties.
description: 53 pages, 35 figures
Safety and efficacy of transcatheter aortic valve implantation in stenotic bicuspid aortic valve compared to tricuspid aortic valve: a systematic review and meta-analysis
Creators: name: Zghouzi, Mohamed
name: Osman, Heba
name: Ullah, Waqas
name: Suleiman, Abdul-Rahman
name: Razvi, Parveen
name: Abdalrazzak, Mukhlis
name: Rabbat, Firas
name: Alraiyes, Mowaffak
name: Sattar, Yasar
name: Bagur, Rodrigo
name: Paul, Timir
name: Matetic, Andrija
name: Mamas, Mamas A.
name: Lakkis, Nasser
name: Alraies, M. Chadi
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Transcatheter aortic valve implantation (TAVI) has emerged as a safe and effective alternative to surgical replacement for tricuspid aortic valve (TAV) stenosis. However, utilization of TAVI for aortic stenosis in bicuspid aortic valve (BAV) compared to TAV remains controversial. We queried online databases with various keywords to identify relevant articles. We compared major cardiovascular events and procedural outcomes using a random effect model to calculate odds ratios (OR). We included a total of 22 studies comprising 189,693 patients (BAV 12,669 vs. TAV 177,024). In the pooled analysis, there were no difference in TAVI for BAV vs. TAV for all-cause mortality, cardiovascular mortality, myocardial infarction (MI), vascular complications, acute kidney injury (AKI), coronary occlusion, annulus rupture, and reintervention/reoperation between the groups. The incidence of stroke (OR 1.24; 95% CI 1.1–1.39), paravalvular leak (PVLR) (OR 1.42; 95% CI 1.26–1.61), and the need for pacemaker (OR 1.15; 95% CI 1.06–1.26) was less in the TAV group compared to the BAV group, while incidence of life-threatening bleeding was higher in the TAV group. Subgroup analysis mirrored pooled outcomes except for all-cause mortality. The use of TAVI for the treatment of aortic stenosis in selective BAV appears to be safe and effective.
Rheological and physical–chemical properties of yogurt with oat–chia seeds composites
Creators: name: Nadtochii, L.A.
name: Baranenko, D.A.
name: Lu, W.
name: Safronova, A.V.
name: Lepeshkin, A.I.
name: Ivanova, V.A.
Publisher: name: Agronomy Research
Year: 2020
Subjects: yogurt
Salvia hispanica L.
oat-chia seeds composites
rheological properties
thixotropic properties
viscoelastic properties
water-holding capacity
article

description: Currently chia seeds (Salvia hispanica L.) are considered as a filler of functional food. However, ground chia seeds have a low viscosity and cohesion properties that are limited its applications. Based on previous data oat-chia seeds composites in different proportions as filler for yogurt have been tested. The investigation of water holding capacity of samples allowed to select the yogurt with filler in the ratio of 1:1 (oat bran:chia seed) in the amount of 3% and 5% as the most close to the control sample without any filler. The rheological characteristics of yogurt samples were investigated and their thixotropic and viscoelastic properties were identified depending on the amount of filler in the product. The yogurt without any filler had the less thixotropic properties in compare with yogurt with oat-chia seeds composites. The structure recovery of yogurt with 3% and 5% filler was close to 100% and greater than 100% respectively. Based on the data of G' and G" moduli was possible to ascertain the yogurt with filler has more viscoelastic properties compared with yogurt without filler. Yogurt with 5% filler exceeds yogurt without filler in biological value according to the content of essential amino acids and polyunsaturated fatty acids.
Functional Genomic Study of Tyrosine Hydroxylase rs6356 for Chronic Pain in Sickle Cell Disease
Creators: name: Yao, Tianzhuo
Publisher: name: University of Illinois at Chicago
Year: 2023

description: Patients with sickle cell disease (SCD) suffer from recurrent episodes of acute pain due to vaso-occlusive crisis and persistent chronic pain. The dopaminergic system has not been extensively studied in chronic pain. Tyrosine hydroxylase (TH) is the rate-limiting enzyme of catecholamine biosynthesis. In our ongoing pharmacogenomics study, one single nucleotide polymorphism (SNP) rs6356 (NM_000360.4: c.241C>T) in the tyrosine hydroxylase gene was found to be associated with chronic pain in sickle cell patients. In this study, rs6356 (V81M) variation in tyrosine hydroxylase was found to have an inhibitive effect in its enzymatic activity, and TH-81M was measured with a greater Km value, which represented a minor enzyme-substrate affinity than TH-81V. SH-SY5Y-rs6356 cell line was generated via CRISPR/Cas9 genomic editing in order to evaluate the influence of TH-V81M mutation in subsequent cellular pathways. It was shown that SH-SY5Y-rs6356 cells manifested a lower intensity of dopamine release in response to DMPP-induced acetylcholinergic activation. Further, SH-SY5Y-rs6356 cells also showed correspondingly mitigated activation of cAMP/PKA signaling, which could be exclusively blocked by the D1/D5 antagonist. In addition, V81M tyrosine hydroxylase showed a lower phosphorylation level when PKA was partially activated. We also found some evidence that peripheral PKA inhibition relieved the pain behavior related to thermal and mechanical stimuli in sickle cell mice.
An Evaluation of Promotional Practices for Private Colleges: The Case of Addis Ababa Medical College and Cup College
Creators: name: Weldegebriel, Gebremicael
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2011

description: The study was conducted to evaluate the promotional practice of private colleges in the case of CPU and Addis Ababa Medical colleges. A descriptive case study was employed to achieve the goal of this research. Two management officials and 71 students which are total of 73 participants were involved in the study. In the selection of the sample population purposive and random sampling were used. In order to get data from the target populations both questionnaire and interview was used. The questionnaire was administered to the students, and the interviews were conducted with the management officials of the colleges. The data collected through questionnaire were analyzed using percentage value and the qualitative data were analyzed using textual explanation. The findings generally indicate promotional efforts of the colleges are not achieve the intended objective. The result of the study also shows that there are problems in designing the messages and measuring results. As a result, the study presented some recommendations so as to alleviate the problems.
Infrared polarimetry of Mrk 231: Scattering off hot dust grains in the central core
Creators: name: Lopez-Rodriguez, E.
name: Packham, C.
name: Jones, T. J.
name: Siebenmorgen, R.
name: Roche, P. F.
name: Levenson, N. A.
name: Alonso-Herrero, A.
name: Perlman, E.
name: Ichikawa, K.
name: Almeida, C. Ramos
name: Gonzalez-Martin, O.
name: Nikutta, R.
name: Martinez-Paredes, M.
name: Shenoy, D.
name: Gordon, M. S.
name: Telesco, C. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present high-angular (0.17$-$0.35 arcsec) resolution imaging polarimetric observations of Mrk 231 in the 3.1 $μ$m filter using MMT-Pol on the 6.5-m MMT, and in the 8.7 $μ$m, 10.3 $μ$m, and 11.6 $μ$m filters using CanariCam on the 10.4-m Gran Telescopio CANARIAS. In combination with already published observations, we compile the 1$-$12 $μ$m total and polarized nuclear spectral energy distribution (SED). The total flux SED in the central 400 pc is explained as the combination of 1) a hot (731 $\pm$ 4 K) dusty structure, directly irradiated by the central engine, which is at 1.6 $\pm$ 0.1 pc away and attributed to be in the pc-scale polar region, 2) an optically-thick, smooth and disk-like dusty structure (`torus') with an inclination of 48 $\pm$ 23$^{\circ}$ surrounding the central engine, and 3) an extinguished (A$_{\mbox{V}} =$ 36 $\pm$ 5 mag) starburst component. The polarized SED decreases from 0.77 $\pm$ 0.14 per cent at 1.2 $μ$m to 0.31 $\pm$ 0.15 per cent at 11.6 $μ$m and follows a power-law function, $λ^{\sim0.57}$. The polarization angle remains constant ($\sim$108$^{\circ}$) in the 1$-$12 $μ$m wavelength range. The dominant polarization mechanism is explained as scattering off hot dust grains in the pc-scale polar regions.
description: 9 pages, 2 figures. Accepted for publication in MNRAS
Updating future year origin-destination matrices when using matrix estimation methods : Craig A. McGeoch.
Creators: name: McGeoch, Craig A. -.
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.
Orbital mapping of energy bands and the truncated spin polarization in three-dimensional Rashba semiconductors
Creators: name: Liu, Qihang
name: Zhang, Xiuwen
name: Waugh, J. A.
name: Dessau, D. S.
name: Zunger, Alex
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Associated with spin-orbit coupling (SOC) and inversion symmetry breaking, Rashba spin polarization opens a new avenue for spintronic applications that was previously limited to ordinary magnets. However, spin polarization effects in actual Rashba systems are far more complicated than what conventional single-orbital models would suggest. By studying via first-principles DFT and a multi-orbital k.p model a 3D bulk Rashba system (free of complications by surface effects) we find that the physical origin of the leading spin polarization effects is SOC-induced hybridization between spin and multiple orbitals, especially those with nonzero orbital angular momenta. In this framework we establish a general understanding of the orbital mapping, common to the surface of topological insulators and Rashba system. Consequently, the intrinsic mechanism of various spin polarization effects, which pertain to all Rashba systems even those with global inversion symmetry, is understood as a manifestation of the orbital textures. This finding suggests a route for designing high spin-polarization materials by considering the atomic-orbital content.
description: 13 pages, 3 fugures
Effects of non-uniform distributions of gain and loss in photonic crystals
Creators: name: Cerjan, Alexander
name: Fan, Shanhui
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a $\mathbf{k} \cdot \mathbf{p}$ theory of photonic crystals containing gain and loss in which the gain and loss are added to separate primitive cells of the underlying Hermitian system, thereby creating a supercell photonic crystal. We show that the supercell bands of this system can merge outward from the degenerate contour formed from folding the bands of the underlying Hermitian system into the supercell Brillouin zone, but that other accidental degeneracies in the band structure of the underlying Hermitian system do not yield band merging behavior. Finally, we show that the modal coupling matrix in PhCs with balanced gain and loss is trace-less, and thus the imaginary components of the eigenvalues can only move relative to one another as the strength of the gain and loss is varied, without any collective motion.
description: 13 pages, 5 figures
Structural Study of Viral Membrane Proteins and Method Development using Solution-NMR Spectroscopy
Creators: name: Banerjee, Indrani
Publisher: name: University of Illinois at Chicago
Year: 2023

description: The power of solution NMR spectroscopy lies in its versatility. Our group focuses on two major areas of research involving solution NMR: Solving structure of viral membrane proteins and novel method development. First part of this thesis will focus on elucidating the solution NMR structure of two lipid-protein complexes: Transmembrane domain of InfluenzaA hemagglutinin and C-terminal domain of InfluenzaA Matrix Protein1; in presence of lipids. A combination of different biophysical methods and NMR provided insight into the membrane interaction and structure-function relationship of these systems. The second part will focus on developing a novel, affordable and stable bicelle system for structural study of membrane proteins. Our study shows that these bicelles are comparable to the most popular DMPC/DHPC bicelles in terms of morphology, relaxation properties and interaction with membrane proteins.