cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exact Solutions of Integrable 2D Contour Dynamics
Creators: name: Alonso, Luis Martinez
name: Medina, Elena
Publisher: name: arXiv
Year: 2004
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: A class of exact solutions of the dispersionless Toda hierarchy constrained by a string equation is obtained. These solutions represent deformations of analytic curves with a finite number of nonzero harmonic moments. The corresponding tau-functions are determined and the emergence of cusps is studied.
description: 13 pages, 3 figures
Measurements of the hyperfine structure of $nP_J$ Rydberg states by microwave spectroscopy in Cs atoms
Creators: name: Song, Rong
name: Bai, Jingxu
name: Li, Zhenhua
name: Jiao, Yuechun
name: Jia, Suotang
name: Zhao, Jianming
Publisher: name: arXiv
Year: 2024
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present measurements of hyperfine structure (HFS) of the $nP_J$ Rydberg states for large principal quantum number $n$ range ($n=41-55$) employing the microwave spectroscopy in an ultra-cold cesium Rydberg ensemble. A microwave field with 30-$μ$s duration couples the $ nS \to nP $ transition, yielding a narrow linewidth spectroscopy that approaches the Fourier limit, which allows us to resolve the hyperfine structure of $ nP_J $ states. By analyzing the hyperfine splittings of $nP_J$ states, we determine the magnetic-dipole HFS coupling constant $\bar{A}_{HFS,P_{1/2}}=3.760(26) ~$GHz for $P_{1/2}$ state, $\bar{A}_{HFS,P_{3/2}}= 0.718(27)~$GHz, and $ \bar{B}_{HFS,P_{3/2}}= -0.084(102)~$GHz for $P_{3/2}$ state, respectively. Systematic uncertainties caused by stray electromagnetic field, microwave field power and Rydberg interaction are analyzed. This measurement is significant for the investigation of Rydberg electrometry and quantum simulation with dipole interaction involving $nP_J$ state.
The impact of non-LTE effects and granulation inhomogeneities on the derived iron and oxygen abundances in metal-poor halo stars
Creators: name: Shchukina, Nataliya
name: Bueno, Javier Trujillo
name: Asplund, Martin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper presents the results of a detailed theoretical investigation of the impact of non-LTE effects and of granulation inhomogeneities on the derived iron and oxygen abundances in the metal-poor halo subgiant HD140283. Our analysis is based on both the `classical' one-dimensional (1D) stellar atmosphere models and on the new generation of three-dimensional (3D) hydrodynamical models. We find that the non-LTE effects on the iron abundance derived from Fe {\sc i} lines are very important, amounting to ${\sim}0.9$ dex and to ${\sim}0.6$ dex in the 3D and 1D cases, respectively. On the other hand, we find that non-LTE and 3D effects have to be taken into account for a reliable determination of the iron abundance from weak Fe {\sc ii} lines, because the significant overexcitation of their upper levels in the granular regions tend to produce emission features. As a result such Fe {\sc ii} lines are weaker than in LTE and the abundance correction amounts to ${\sim}0.4$ dex for the 3D case. We derive also the oxygen-to-iron abundance ratio in the metal-poor star HD140283 by using the O {\sc i} triplet at 7772--5 Åand the forbidden [O {\sc i}] line at 6300 Å. Interestingly, when both non-LTE and 3D effects are taken into account there still remains significant discrepancies in the iron abundances derived from Fe {\sc i} and Fe {\sc ii} lines, as well as in the oxygen abundances inferred from the O {\sc i} and [O {\sc i}] lines. We conclude that the metalicity of this type of metal-poor stars could be significantly larger than previously thought, which may have far-reaching implications in stellar astrophysics.
description: The Astrophysical Journal (in press). (35 pages, 5 figures and 4 tables)
Addressing Gender Gaps in the Ugandan Labour Market
Creators: name: Kasirye, Ibrahim
name: Kasirye, Ibrahim
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Financial Economics
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: Labor and Human Capital
subject: Production Economics
subject: Risk and Uncertainty
subject: Productivity survey
subject: gender discrimination
subject: eprc

description: Four out of every five women in Uganda are employed in agriculture, according to the 2008 Gender and Productivity Survey (GPS) in Uganda (EPRC, 2009); and 42 percent of women in the labour force are unpaid family workers—receiving no income despite contributing the largest proportion of the agricultural labour. Gender discrimination in the labour market is a pervasive economic problem in developing countries.1 Discrimination based on sex can take many forms in the labour market—from restricted access to certain sectors of employment—to differential pay by gender. As earlier noted, whereas 42 percent of women in Uganda are unpaid family workers, the corresponding rate for men is only 16 percent according to the 2008 GPS. Furthermore, the 2008 GPS shows that in the private sector, women in Uganda receive on average lower pay than men. Gender gaps in the labour market do not only lead to reduced incomes for women but also affects the status of women within society. Nevertheless, gender norms continue to dictate what a woman can and cannot do in Uganda and whether she can work outside her marital home. This environment has ensured that female exploitation in the labour market persists. As such, there is a need to address gender equity in labour market in Uganda—especially as the country attempts to attain the Millennium Development Goals (MDGs).
3PLSPs in Pakistan: An Exploratory Study on MRO, Term of Service, Fueling, and Fee Charging Strategies, Adopted by MNCs and Domestic Firms
Creators: name: Siddiqui, Zeeshan Noor
Publisher: name: figshare
Year: 2020
Subjects: subject: 150309 Logistics and Supply Chain Management
subject: FOS: Economics and business
subject: 150703 Road Transportation and Freight Services

description: An exploratory study that endeavors to bring out new dimensions related to 3PLPS through phenomenological approach. The study qualitatively highlights ‘MRO’ (maintenance repair operation), and ‘term of service’ as contributing propositions towards ‘fee charging strategies’. During course of data collection and thematic analysis another proposition ‘fueling strategy’ is also highlighted. Data is collected through semi-structured interviews, conducted from four (4) 3PLSPs, Selected through ‘purposive sampling’ with an expert of the domain. Set of recommendations include ‘policy recommendation’ for the policy makers, and individual recommendations for all 3PLSPs working in Pakistan. Future research endeavors in the field of MRO, term of service, fueling, and fee charging strategies are also suggested. This study is a pioneering effort to explore and develop our understanding about these dimensions that directly or in-directly affect 3PLSPs.
Ensuring Adequate Early Childhood Development for Uganda’s Children
Creators: name: Kasirye, Ibrahim
name: Kasirye, Ibrahim
Publisher: name: Unknown
Year: 2012
Subjects: subject: Community/Rural/Urban Development
subject: Health Economics and Policy
subject: Labor and Human Capital
subject: child deaths
subject: childhood development
subject: children
subject: immunization
subject: child nutritional health
subject: eprc

description: Although Uganda has made significant progress in reducing child deaths in the past five years, the country still faces major challenges in ensuring adequate early childhood development. This briefing highlights some of the major challenges affecting children during the first five years of life with focus on: the low immunization coverage rates and vaccine availability; poor child nutritional health status; and the limited enrolment of children in Early Childhood Development Centres.
Reversible Regulation of a Benzamidine-catalyzed Aldol Reaction by CO2
Creators: name: König, B.
name: Ilgen, Florian
Publisher: name: Universität Regensburg
Year: 2009
Subjects: subject: Aldol Reaction, Carbon Dioxide, Benzamidine, Regulated Catalysis
subject: 540 Chemie

description: The catalytic activity of benzamidine during an aldol reaction was reversibly switched on and off with CO2 as an orthogonal signal without affecting the converted substrate or products.
A minimum-hypothesis explanation for the Radcliffe Wave: Kelvin-Helmholtz instability
Creators: name: Fleck, Robert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It is suggested that the wavelike character of the recently discovered 2.7-kiloparsec spatially and kinematically coherent complex of interstellar clouds in the solar neighborhood--the Radcliffe Wave--may be the result of a Kelvin-Helmholtz instability arising at the interface between the Galactic disk and non-corotating halo.
THE INFLUENCE OF ISLAM ON THE FORMATION OF THE SOCIO-CULTURAL ENVIRONMENT OF THE EAST
Creators: name: Boymirzayev, Qahramon
Publisher: name: Zenodo
Year: 2024

description: The article examines the historical, socio-cultural conditions and social environment in the Muslim East, the scientific and methodological bases of studying the interpretation of justice in the moral views of Abu Abdullah Rudaki. Also, the life and career path of Abu Abdullah Rudaki, the factors that influenced the formation of his moral views were analyzed.
title: "What alternative punishment is there?": Military Executions During World War I
Creators: name: Oram, Gerard Christopher
Publisher: name: The Open University
Year: 2000

description: The power to inflict the death penalty formed a vital part of the disciplinary process in all the major armies during the First World War. Yet serious historians have neglected the subject. This thesis addresses the topic in a critical manner and challenges the view that executions were arbitrary, reflecting a distant and uncaring High Command. Analysis of military and criminal law in Europe and the United States establishes a comparative framework from which to proceed. Changing ideas about discipline and duty as the war impacted on both the military and British society are assessed. The concept of morale - so important to military commanders during the war - is evaluated in the context of changing demands on the army as it adjusted to the absorption of 'citizen soldiers' and conscripts as well as disappointment on the battlefield. Differences between Regular, Territorial and 'New Army' formations are assessed. So too is the impact of the big offensives such as the Battle of the Somme in 1916. Finally, three divisions (one Regular, one Territorial, and one 'New Army') are subjected to detailed analysis from their initial deployment on the Western Front then on to the Italian Front where a different disciplinary approach can be detected. The central theme of the thesis is that whilst some British commanders adopted a progressive approach to discipline most clung to traditional ideas of deterrence. In this they were encouraged by the very nature of British military law which differed from continental and American models in vital areas. Driven by the fear of a collapse in discipline amongst their 'citizen soldiers' some commanders took refuge in traditional methods of punishment to maintain what they termed 'fighting spirit'. This, however, altered at the end of 1917 when traditional approaches gave way to new forms of management.
Competition of defect ordering and site disproportionation in strained LaCoO$_{3}$ on SrTiO$_3$(001)
Creators: name: Geisler, Benjamin
name: Pentcheva, Rossitza
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The origin of the $3 \times 1$ reconstruction observed in epitaxial LaCoO$_{3}$ films on SrTiO$_3(001)$ is assessed by using first-principles calculations including a Coulomb repulsion term. We compile a phase diagram as a function of the oxygen pressure, which shows that ($3 \times 1$)-ordered oxygen vacancies (LaCoO$_{2.67}$) are favored under commonly used growth conditions, while stoichiometric films emerge under oxygen-rich conditions. Growth of further reduced LaCoO$_{2.5}$ brownmillerite films is impeded by phase separation. We report two competing ground-state candidates for stoichiometric films: a semimetallic phase with $3 \times 1$ low-spin/intermediate-spin/intermediate-spin magnetic order and a semiconducting phase with intermediate-spin magnetic order. This demonstrates that tensile strain induces ferromagnetism even in the absence of oxygen vacancies. Both phases exhibit an intriguing ($3 \times 1$)-reconstructed octahedral rotation pattern and accordingly modulated La-La distances. In particular, charge and bond disproportionation and concomitant orbital order of the $t_{2g}$ hole emerge at the Co sites that are also observed for unstrained bulk LaCoO$_3$ in the intermediate-spin state and explain structural data obtained by x-ray diffraction at elevated temperature. Site disproportionation drives a metal-to-semiconductor transition that reconciles the intermediate-spin state with the experimentally observed low conductivity during spin-state crossover without Jahn-Teller distortions.
description: 11 pages, 9 figures, Supplement
title: The Religious Beliefs Of Charlotte Brontë, as Reflected in Her Novels And Letters
Creators: name: Jones, Phyllis Kelson
Publisher: name: The Open University
Year: 1997

description: I have attempted to find out what was of significance in the sphere of religion in Charlotte Bronte's life and thought. For information on this I have concentrated on a study of her better known novels, her letters and the contacts she had through family and friends. Naturally of importance was her up-bringing in an Evangelical Anglican household. But at the same time, she had a father, who though orthodox in his theology was unorthodox in his views on child-rearing. The mental freedom this gave her was important. Her education, though far from conventional, was such as stimulated and invigorated her imagination. Her natural inclination and independence of thought, , enabled her to use this freedom. Her letters are revealing of a person capable of passionate feelings and strong emotions. But these she was only able to give open expression to in her novels. This was undoubtedly what contributed to their lasting appeal. In delving into these personal responses it has been possible to throw an interesting light on religious thinking in sections of nineteenth-century church life, particularly on the contentions and divergencies within the EvangeIical and Catholic wings of the Anglican church This has in turn shown how, leading an isolated life in an isolated part of the world does not exclude Charlotte Brontë from absorbing and reflecting currents of religious thought that were strong at that time. To give background to all this, it seemed helpful to introduce the whole subject by a brief outline of what those main strands of thought were, both Protestant and Catholic. This, in turn, led to a consideration of the changes that had taken place during the eighteenth and early nineteenth centuries not only in Anglicanism, but in Catholicism and Methodism. In summing up, it was interesting to trace Charlotte Brontë’s changmg attitudes; how she responded to new ideas and controversies as her literary reputation grew and her horizons expanded. What remains after all this sifting of ideas is the conviction that over and above all the outside influences there is always the indefinable factor, the spark of genius.
On compactness and fixed point theorems in partial metric spaces
Creators: name: Bugajewski, Dariusz
name: Maćkowiak, Piotr
name: Wang, Ruidong
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54D30, 54E35, 54E50, 54H25

description: In this paper we examine two basic topological properties of partial metric spaces, namely compactness and completeness. Our main result claims that in these spaces compactness is equivalent to sequential compactness. We also show that Hausdorff compact partial metric spaces are metrizable. In the second part of this article we discuss the significance of bottom sets of partial metric spaces in fixed point theorems for mappings acting in these spaces.
description: minor corrections, 16 pages, initially submitted to a journal on November 6, 2019
Integrating MA in adolescents with R/LD (Collins et al., 2020)
Creators: name: Collins, Ginger
name: Wolter, Julie A.
name: Meaux, Ashley Bourque
name: Crystle N. Alonzo
Publisher: name: ASHA journals
Year: 2020
Subjects: Language

description: Purpose: Reading and writing are language-based skills, and effective literacy instruction/intervention practices should include an explicit linguistic focus. A multilinguistic structured literacy approach that integrates morphological awareness is proven beneficial to improve reading and writing for students with language literacy deficits. The key components of this approach are explored.Method: An intensive 2-week clinical summer camp, Camp CHRONICLE, which utilizes a multilinguistic structured literacy intervention model that integrates morphological awareness for adolescents with literacy deficits, is reviewed, and three case examples are included.Conclusion: Multilinguistic structured literacy intervention with a morphological awareness focus is an ideal approach to improve literacy skills of children and adolescents with language literacy deficits.
Supplemental Material S1. Sample clinical observation and data sheet: Day 6.
Supplemental Material S2. Camp CHRONICLE sample daily lesson plan: Day 4.
Collins, G., Wolter, J. A., Meaux, A. B., Alonzo, C. N. (2020). Integrating morphological awareness in a multilinguistic structured literacy approach to improve literacy in adolescents with reading and/or language disorders. Language, Speech, and Hearing Services in Schools, 51(3), 531-543. https://doi.org/10.1044/2020_LSHSS-19-00053
Publisher Note: This article is part of the Forum: Morphological Awareness as a Key Factor in Language-Literacy Success for Academic Achievement.
A Review on Low-Dose Emission Tomography Post-Reconstruction Denoising with Neural Network Approaches
Creators: name: Bousse, Alexandre
name: Kandarpa, Venkata Sai Sundar
name: Shi, Kuangyu
name: Gong, Kuang
name: Lee, Jae Sung
name: Liu, Chi
name: Visvikis, Dimitris
Publisher: name: arXiv
Year: 2024
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Low-dose emission tomography (ET) plays a crucial role in medical imaging, enabling the acquisition of functional information for various biological processes while minimizing the patient dose. However, the inherent randomness in the photon counting process is a source of noise which is amplified in low-dose ET. This review article provides an overview of existing post-processing techniques, with an emphasis on deep neural network (NN) approaches. Furthermore, we explore future directions in the field of NN-based low-dose ET. This comprehensive examination sheds light on the potential of deep learning in enhancing the quality and resolution of low-dose ET images, ultimately advancing the field of medical imaging.
description: 16 pages, 6 figures
title: Geolearners: Informal Learning with Mobile and Social Technologies
Creators: name: Clough, Gill
Publisher: name: The Open University
Year: 2009

description: This thesis investigates how mobile and social technologies are influencing informal learning in the context of online community membership. The development of mobile technologies that use Global Positioning System (GPS) data to pinpoint geographical location together with the rapidly evolving Web 2.0 applications supporting the creation and consumption of content suggest a potential for cooperative informal learning linked to location. This research explores whether this potential has been realised. Two pilot studies were conducted, a technology-enhanced Birdwatch (16 participants) and a GPS-guided Nature Trail (11 participants) to evaluate the effects of connected, location aware technology on informal learning and community building. The main study focused on the Geocaching community, a geographically dispersed group who use mobile and Web 2.0 technologies to link the virtual social spaces of the internet with the physical spaces that surround them. This research built on insights from the Mobilearn project that mobile learning is connected to the mobility of the learner moving between different sources of technological and social resources, rather than the technology (Attewell and Savill-Smith, 2004). Online survey participants were recruited from the Geocaching forums. From the 659 responses, five linked case studies were selected for interviews. This data was supplemented by information collected from the Geocaching website and forums and analysed using qualitative techniques. The work reported in this thesis reinforces the Preece and Shneiderman (2009) four stage communities model, illustrating that learning opportunities are built into the community membership trajectory. It uncovered novel ways of using mobile and Web 2.0 technologies to create learning activities connected to location. It also revealed a growing undercurrent of cooperative informal learning through distributed networks of connected individuals who made innovative use of both mobile and social technologies to create a persistent digital narrative of location which served as a community resource.
Visual Analytics for Temporal Hypergraph Model Exploration
Creators: name: Fischer, Maximilian T.
name: Arya, Devanshu
name: Streeb, Dirk
name: Seebacher, Daniel
name: Keim, Daniel A.
name: Worring, Marcel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Many processes, from gene interaction in biology to computer networks to social media, can be modeled more precisely as temporal hypergraphs than by regular graphs. This is because hypergraphs generalize graphs by extending edges to connect any number of vertices, allowing complex relationships to be described more accurately and predict their behavior over time. However, the interactive exploration and seamless refinement of such hypergraph-based prediction models still pose a major challenge. We contribute Hyper-Matrix, a novel visual analytics technique that addresses this challenge through a tight coupling between machine-learning and interactive visualizations. In particular, the technique incorporates a geometric deep learning model as a blueprint for problem-specific models while integrating visualizations for graph-based and category-based data with a novel combination of interactions for an effective user-driven exploration of hypergraph models. To eliminate demanding context switches and ensure scalability, our matrix-based visualization provides drill-down capabilities across multiple levels of semantic zoom, from an overview of model predictions down to the content. We facilitate a focused analysis of relevant connections and groups based on interactive user-steering for filtering and search tasks, a dynamically modifiable partition hierarchy, various matrix reordering techniques, and interactive model feedback. We evaluate our technique in a case study and through formative evaluation with law enforcement experts using real-world internet forum communication data. The results show that our approach surpasses existing solutions in terms of scalability and applicability, enables the incorporation of domain knowledge, and allows for fast search-space traversal. With the technique, we pave the way for the visual analytics of temporal hypergraphs in a wide variety of domains.
description: 11 pages, 6 figures, IEEE VIS VAST 2020 - IEEE Transactions on Visualization and Computer Graphics
Addressing the Poor Nutrition of Ugandan Children
Creators: name: Ssewanyana, Sarah
name: Kasirye, Ibrahim
name: Ssewanyana, Sarah
name: Kasirye, Ibrahim
Publisher: name: Unknown
Year: 2012
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: Labor and Human Capital
subject: Demography
subject: FOS: Sociology
subject: maternal health
subject: eprc

description: One out of every three young children in Uganda are short for their age, according to the 2011 Uganda Demographic and Health Survey (UDHS); and the incidence of poor nutritional status is highest in the relatively better off sub region of South Western Uganda. Although poor child nutrition status is a pervasive global problem, it is mainly concentrated in a few developing countries. According to the United Nations Children’s Fund (UNICEF) 24 developing countries account for over 80 percent of the world’s 195 million children faced with stunting. Out of the 24 countries, at least 11 are from Sub Saharan Africa (SSA). Furthermore, countries in SSA have made the least progress in reducing stunting rates—from 38% to 34% between 1990 and 2008—compared to a reduction of 40% to 29% for all developing countries. Uganda is among the developing countries with the largest population of stunted children—an estimated 2.4 million children aged less than 5 years in Uganda are stunted and this places the country at the rank of 14th—based on the ranking of countries with large populations of nutritionally challenged children...
title: Access to Islamic Finance and Banking as a Human Right
title: A Conceptual Analysis from a Human Rights Perspective on the Islamic Prohibition of Riba
titleType: Subtitle
Creators: name: Sallam, Ahmed
Publisher: name: Lancaster University
Year: 2022

description: Islamic religion strictly prohibits paying and charging any amount of interest on borrowing and lending, or what is so-called Riba. Consequently, in the light of the interest-based global economic systems, the adherents of the Islamic faith may become confronted with a dilemma to choose between two alternatives. Either they comply with their religious beliefs and thus refrain from accessing some essential financial services that directly charge an interest such as housing mortgages and education loans, or they deal with these services against their will to manifest their religious beliefs. Either choice may result in certain human rights issues confronting the adherents of the Islamic religion. On the assumption that such adherents choose to relinquish their religious beliefs in order to access the interest-based financial services, they may indirectly deny themselves their right to freedom of religion or belief. On the other end of the spectrum, when the adherents of the Islamic faith elect to adhere to their religious beliefs, they may indirectly deny themselves access to the interest-based financial services such as housing mortgages and education loans. This may not only affect their equal access to these services in relation to their non-Muslim counterparts but may have also an indirect adversely impact on some of their economic, social and cultural rights such as their right to adequate housing and their right to education. The focus of this research is to address these human rights issues and to bring to light a new perspective on whether access to a specific type of financial and banking services, namely Islamic finance and banking, may reflect certain entitlements for the adherents of the Islamic religion under the international human rights framework. This study examines such access in light of three particular human rights, namely the right to freedom of religion or belief, the right to adequate housing and the right to education. In order to illustrate examples of the relevant human rights issues, this thesis also conducts a case study on Islamic finance and banking in the UK jurisdiction in the final part of the thesis.
Moving the California distributed CMS xcache from bare metal into containers using Kubernetes
Creators: name: Fajardo, Edgar
name: Tadel, Matevz
name: Balcas, Justas
name: Tadel, Alja
name: Wuerthwein, Frank
name: Davila, Diego
name: Guiang, Jonathan
name: Sfiligoi, Igor
Publisher: name: arXiv
Year: 2020
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The University of California system has excellent networking between all of its campuses as well as a number of other Universities in CA, including Caltech, most of them being connected at 100 Gbps. UCSD and Caltech have thus joined their disk systems into a single logical xcache system, with worker nodes from both sites accessing data from disks at either site. This setup has been in place for a couple years now and has shown to work very well. Coherently managing nodes at multiple physical locations has however not been trivial, and we have been looking for ways to improve operations. With the Pacific Research Platform (PRP) now providing a Kubernetes resource pool spanning resources in the science DMZs of all the UC campuses, we have recently migrated the xcache services from being hosted bare-metal into containers. This paper presents our experience in both migrating to and operating in the new environment.
Contaminant-induced current decline in capillary array electrophoresis
Creators: name: Coope, Robin
Publisher: name: University of British Columbia
Year: 2010

description: This research clarifies, for the first time, the mechanism and impact of current decline in capillary array electrophoresis (CAE). High throughput capillary array electrophoresis instruments for DNA sequencing suffer to varying degrees from failure associated with electrophoretic current decline and inhibition or delay in the arrival of fragments at the detector. This effect is known to be associated with residual quantities of large, slow moving fragments of template or genomic DNA carried through from sample preparation and sequencing reactions. Here, we document and investigate the existence of an expanding ionic depletion region induced by overloading the capillary with low-mobility DNA fragments, and the effect of growth of this region on electrophoresis run failure. This depletion region forms upstream of the smaller sequencing fragments, and its expansion was found not to affect the quality of the sequencing peaks at the detector. Rather the current decline associated with depletion region growth reduces the velocity of the downstream sequencing fragments, so fewer fragments arrive at the detector during the run. It is shown, through analytical and numerical models, how increasing quantities of slow moving DNA cause the concentration of background electrolyte downstream to decline. With the concentration of such fragments beyond a threshold quantity, the anode-side boundary of the nascent depletion region is shown to propagate toward the anode at a rate faster than the contaminant DNA migration. Under such conditions the depletion region expands, the current declines, and the electrophoresis run suffers from a reduced yield of sequence data or fails completely. While the upstream boundary of the depletion region propagates with the DNA, the propagation rate of the downstream boundary is found to be inversely proportional to the amount of ionic depletion, and independent of the motion of the DNA. Observations suggest that these downstream boundaries may propagate as a result of an imbalance in current carriers brought about by the exposure of bound charges in the matrix or capillary wall, which may be coupled to a rise in pH.
Spin-selective optical absorption of singly charged excitons in a quantum dot
Creators: name: Högele, A.
name: Kroner, M.
name: Seidl, S.
name: Karrai, K.
name: Atatüre, M.
name: Dreiser, J.
name: Imamoğlu, A.
name: Warburton, R. J.
name: Badolato, A.
name: Gerardot, B. D.
name: Petroff, P. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate high resolution laser absorption spectroscopy of a single InGaAs/GaAs self-assembled quantum dot embedded in a field-effect structure. We show experimentally that the interband optical absorption to the lower Zeeman branch of the singly charged exciton is strongly inhibited due to spin (Pauli) blockade of the optical transition. At high magnetic fields the optical absorption to the upper Zeeman branch dominates the absorption spectrum. We find however that the spin blockade is not complete and a 10% leakage remains at high magnetic fields. Applying a gate voltage to empty the dot of its resident electron turns off the spin blockade. This effect is observed at 1.5 K and up to 9 Tesla.
description: 3 pages, 4 figures; content as published
title: See you in Panmunjom ! : Umnutzungszenario von Ranmunjom als interkulturelles Dorf
Creators: name: Sicong Qiu, Johannes
Publisher: name: TU Wien
Year: 2017
Subjects: subject: Nordkorea
subject: Grenzarchitektur
subject: Umnutzung
subject: North Korea
subject: border architecture
subject: conversion

description: Die momentane Lage auf der koreanischen Halbinsel ist dominiert durch eine Situation der Unsicherheit und Unberechenbarkeit, die die Aufmerksamkeit internationaler Staaten auf sich zieht. Es scheint, als hätte sich die derzeitige Lage durch kontinuierliche Drohungen und Provokationen (auch in den Jahren zuvor) verschärft und festgefahren. Falls diese Situation eskaliert, hätte das katastrophale Folgen für die Region und würde die Stabilität anderer Staaten gefährden. Um es nicht so weit kommen zu lassen, ist es notwendig, dass alle Parteien die Bereitschaft zeigen, sich persönlich zu treffen und einen Dialog zu führen. Die vorliegende Diplomarbeit befasst sich mit der Entwicklung eines Szenarios der Umnutzung von Panmunjom in der Demilitarisierten Zone (DMZ) zugunsten einer besseren/verbesserten Beziehung zwischen den beiden getrennten Koreas sowie einer Förderung der Interaktion der dort lebenden Menschen. Als mögliche Antwort auf die Aufgabe soll ein interkulturelles Dorf in Panmunjeom (JSA) entstehen. Das Konzept nimmt traditionelle Elemente der koreanischen Kultur und Baukunst auf und interpretiert diese neu. Ziel dieser Arbeit ist es, einen architektonischen Lösungsansatz zur Annäherung der beiden getrennten Länder zu liefern und einen Beitrag zu einem friedvollen Miteinander der Menschen zu leisten.
description: The current state on the Korean Peninsula is dominated by a situation of uncertainty and of unpredictability which attracts international attention. It seems that the current situation has intensified by continuous threats and provocations (also in the years before). An escalation would have catastrophic consequences for the region and would also threaten the stability of the neighboring states in this region. In order to prevent those scenarios, it is necessary that all parties are willing to meet each other in person to start a dialog. Therefore, this thesis focuses on the development of a scenario of a conversion of Panmunjom in the Demilitarized Zone (DMZ) to improve and to boost the relationship between the two separate Koreas. As a possible answer to this task is to establish an intercultural village in Panmunjom (Joint Security Area). This concept reinterprets traditional elements of Korean culture and architecture. The goal of this thesis is to provide an architectural solution to the approach of the two separate countries and to deliver a contribution to a peaceful coexistence.
Spin-polarized transport through carbon nanotubes
Creators: name: Krompiewski, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Carbon nanotubes (CNT) belong to the most promising new materials which can in the near future revolutionize the conventional electronics. When sandwiched between ferromagnetic electrodes, the CNT behaves like a spacer in conventional spin-valves, leading quite often to a considerable giant magneto-resistance effect (GMR). This paper is devoted to reviewing some topics related to electron correlations in CNT. The main attention however is directed to the following effects essential for electron transport through nanotubes: (i) nanotube/electrode coupling and (ii) inter-tube interactions.It is shown that these effects may account for some recent experimental reports on GMR, including those on negative (inverse) GMR.
description: 7 pages, 3 figures
Development Impact of Higher Education in Africa: the case of Uganda
Creators: name: Obwona, Marios
name: Ssewanyana, Sarah
name: Obwona, Marios
name: Ssewanyana, Sarah
Publisher: name: Unknown
Year: 2007
Subjects: subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Institutional and Behavioral Economics
subject: Labor and Human Capital
subject: Production Economics
subject: Resource /Energy Economics and Policy
subject: GDP growth
subject: Universities
subject: Tax revenue
subject: eprc

description: Using micro data from a series of household surveys, the paper demonstrates that to some extent there is positive correlation between per capita GDP growth and student enrolment in public universities in Uganda. It also finds that the higher education graduates are employed in those sectors which have recorded higher growth rates. The higher education graduates do contribute to the economy indirectly through tax revenue which are in turn used to support social programs among others that benefit the society at large. The paper also demonstrates that the share of taxes from higher education graduates has been increasing over time. The paper reveals that the returns to higher education are higher than at any other lower education levels. More importantly, university education shows the highest private returns.
Magnetorotational neutron star kicks
Creators: name: Kondratyev, Ilya A.
name: Moiseenko, Sergey G.
name: Bisnovatyi-Kogan, Gennady S.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: High velocity neutron stars, observed as rapidly moving radio-pulsars, are believed to gain high linear velocities -- kicks -- in aspherical supernova explosions. The mechanism of the kick formation is probably connected with anisotropic neutrino flash, and/or anisotropic matter ejection. In this paper, we investigate a neutron star kick origin in a magnetorotational (MR) supernova explosion model. The simulations have been done for a series of core collapse supernova models with initial equatorially asymmetric magnetic fields. We have realized 2D magnetohydrodynamic simulations, considering the protoneutron star kick and explosion properties in three different asymmetric magnetic field configurations. The simulations show, that in the MR supernova model protoneutron star kicks are formed with velocities up to ~500 km/s, due to asymmetric matter ejection in jets. It may explain the observed kick velocities of some neutron stars, formed in the MR supernovae explosions.
description: 15 pages, 15 figures, 4 tables, published recently in PRD. This is the accepted version of the paper, which is slightly different from the journal one due to minor language corrections from the editorial staff during production process
Shock-Heated Gas in the Large Scale Structure of the Universe
Creators: name: Kang, Hyesung
name: Ryu, Dongsu
name: Cen, Renyue
name: Song, Doojong
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Cosmological shock waves play a major role in heating baryonic gas in the large scale structure of the universe. In this contribution we study the shock-heated gas in connection with shocks themselves. The distributions of shock speed and temperature of shock-hated gas both should reflect the depth of gravitational potential of associated nonlinear structures, so their morphology. From their distributions we find, in addition to hot gas in and around clusters/groups and warm-hot intergalactic medium (WHIM) with T=10^5-10^7 K mostly in filaments, there is a significant amount of low temperature WHIM with T < 10^5 K distributed mostly as sheet-like structures. Not only the WHIM with T=10^5-10^7 K but also the WHIM with T < 10^5 K make up a significant fraction of gas mass, implying the low temperature WHIM could be important in resolving the missing baryon problem. The shock-heated gas in filaments and sheets are manifested best through emissions and absorptions in soft X-ray and far UV. We confirm that the WHIM with T=10^5-10^7 K makes significant contributions to the soft X-ray background, absorptions of highly ionized species such as OVII and OVIII in AGN spectra, and line emissions from OVII and OVIII ions, as pointed by previous studies. However, the WHIM with T < 10^5 K is the major contributor to absorptions of lower ionized species such as OV and OVI, because these photo-ionized ions are most abundant in sheets of low density and temperature. (abridged)
description: To appear in ApJ. 8 figures with 3 in jpg. Postscript file with full resolution figures - http://canopus.chungnam.ac.kr/ryu/kangetal.zip
Accelerated electron populations formed by Langmuir wave-caviton interactions
Creators: name: Sircombe, N. J.
name: Arber, T. D.
name: Dendy, R. O.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Direct numerical simulations of electron dynamics in externally driven electrostatic waves have been carried out using a relativistic two-fluid one-dimensional Vlasov-Poisson code. When the driver wave has sufficiently large amplitude, ion density holes (cavitons) form. The interaction between these cavitons and other incoming Langmuir waves gives rise to substantial local acceleration of groups of electrons, and fine jet-like structures arise in electron phase space. We show that these jets are caused by wave-breaking when finite amplitude Langmuir waves experience the ion density gradient at the leading edge of the holes, and are not caused by caviton burn-out. An analytical two-fluid model gives the critical density gradient and caviton depth for which this process can occur. In particular, the density gradient critically affects the rate at which a Langmuir wave, moving into the caviton, undergoes Landau damping. This treatment also enables us to derive analytical estimates for the maximum energy of accelerated electrons, and for the energy spectrum along a phase-space jet. These are confirmed by direct numerical simulations.
description: 9 pages 10 figures. Quality of figures reduced to reduce submission size
CP noninvariance and an effective cosmological constant: the energy density in a pseudoscalar field which arises from a cosmological, spontaneously-broken chiral symmetry
Creators: name: Barshay, Saul
name: Kreyerhoff, Georg
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present and discuss the properties and the main results of a cosmological model with a spontaneously-broken chiral symmetry. The model contains and relates dynamically, two spin-zero fields. The scalar field can provide the dynamical basis for inflation in the early universe. The pseudoscalar, Goldstone field can provide an early, small residual vacuum energy density, the absolute value of which we estimate to be similar to the present, empirically small vacuum energy density. The small energy scale for this effective cosmological constant is estimated separately, by relating it dynamically to the empirical, small scale of neutrino mass. CP invariance is broken spontaneously. This provides a natural basis for the early generation of an antineutrino-neutrino asymmetry, whose magnitude we estimate, and find to be significant.
description: 11 pages, 1 figure. Some typing errors corrected. Accepted for publication in Mod. Phys. Lett. A
A Incorporação de Corredores de Conectividade no Manejo de Florestas Industriais Utilizando a Heurística da RazãoR
Creators: name: Moreira, José Mauro Magalhães Ávila Paz
name: Rodriguez, Luiz Carlos Estraviz
name: Moreira, José Mauro Magalhães Ávila Paz
name: Rodriguez, Luiz Carlos Estraviz
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Environmental Economics and Policy
subject: heuristics
subject: R-ratio
subject: optimized forest management
subject: connectivity corridors
subject: dynamic programming.

description: Planning models that connect natural forests through corridors formed by industrial forests result in combinatorial mathematical problems that are difficult to solve and demand special techniques. The main objective of this paper is to apply, improve and evaluate the performance of a heuristic method named R-ratio (NOBRE and RODRIGUEZ, 2005), developed to solve forest planning problems that consider exclusively binary variables and are formulated as a model Type I harvest scheduling problem (JOHNSON and SCHEURMAN, 1977 apud CLUTTER et al., 1992, p. 281). The solution’s connectivity deficit was evaluated by a recursive algorithm based on the Graph Theory and dynamic programming techniques. A farm of industrial forest that supplies round wood to a pulp wood company in the State of São Paulo was used as a study case. The method was effective in creating feasible solutions after a few number of interactions, showing inefficiency only in the computational time required. The objective function values of the solutions provided by the heuristic vary from 99.71% to 99.83% of the optimal solution found by a mixed integer linear programming, with an average of 48 interactions.
The Smooth Trajectory Estimator for LMB Filters
Creators: name: Van Nguyen, Hoa
name: Nguyen, Tran Thien Dat
name: Shim, Changbeom
name: Anuar, Marzhar
Publisher: name: arXiv
Year: 2024
Subjects: subject: Signal Processing (eess.SP)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper proposes a smooth-trajectory estimator for the labelled multi-Bernoulli (LMB) filter by exploiting the special structure of the generalised labelled multi-Bernoulli (GLMB) filter. We devise a simple and intuitive approach to store the best association map when approximating the GLMB random finite set (RFS) to the LMB RFS. In particular, we construct a smooth-trajectory estimator (i.e., an estimator over the entire trajectories of labelled estimates) for the LMB filter based on the history of the best association map and all of the measurements up to the current time. Experimental results under two challenging scenarios demonstrate significant tracking accuracy improvements with negligible additional computational time compared to the conventional LMB filter. The source code is publicly available at https://tinyurl.com/ste-lmb, aimed at promoting advancements in MOT algorithms.
description: 6 pages, 5 figures. Presented at The 12th IEEE International Conference on Control, Automation and Information Sciences (ICCAIS 2023), Nov 2023, Hanoi, Vietnam