cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
General protocols for the efficient distillation of indistinguishable photons
Creators: name: Saied, Jason
name: Marshall, Jeffrey
name: Anand, Namit
name: Rieffel, Eleanor G.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We introduce state-of-the-art protocols to distill indistinguishable photons, reducing distinguishability error rates by a factor of $n$, while using a modest amount of resources scaling only linearly in $n$. Our resource requirements are both significantly lower and have fewer hardware requirements than previous works, making large-scale distillation experimentally feasible for the first time. This efficient reduction of distinguishability error rates has direct applications to fault-tolerant linear optical quantum computation, potentially leading to improved thresholds for photon loss errors and allowing smaller code distances, thus reducing overall resource costs. Our protocols are based on Fourier transforms on finite abelian groups, special cases of which include the discrete Fourier transform and Hadamard matrices. This general perspective allows us to unify previous results on distillation protocols and introduce a large family of efficient schemes. We utilize the rich mathematical structure of Fourier transforms, including symmetries and related suppression laws, to quantify the performance of these distillation protocols both analytically and numerically. Finally, our work resolves an open question concerning suppression laws for the $n$-photon discrete Fourier transform: the suppression laws are exactly characterized by the well-known Zero Transmission Law if and only if $n$ is a prime power.
description: V4: Close to published version. V3: Updated exposition, added appendix discussing relevance to fault-tolerant linear optical quantum computation, and fixed a typo in Theorem III.16. V2: Updated Th. III.9 with stronger statement, correcting mistake in V1 proof. Include discussion and analysis of more general Fourier protocols over abelian groups. Other minor changes
Numerical algorithms to calculate periodic solutions of the Sivashinsky equation
Creators: name: Karlin, Vladimir
name: Maz'ya, Vladimir
name: Schmidt, Gunther
Publisher: name: Weierstrass Institute
Year: 2002
Subjects: subject: saturated asymptotic approximations
subject: Sivashinsky equation
subject: flame fronts
subject: stability
subject: round-off errors
subject: 65M70
subject: 76E17
subject: 65G50

description: The primary aim of this work is the accurate calculation of periodic solutions to the Sivashinsky equation, which models dynamics of the long wave flame instability. A highly accurate computational algorithm has been developed in both one and two spatial dimensions and its crucial implementation details has been presented. The algorithm is based on the concept of "approximate approximations" which also can be referred to as saturated asymptotic approximations. The given computations support the idea of the instability of steady solutions to the Sivashinsky equation in large domains through huge linear amplification of nonmodal perturbations.  Unlike the presentation of the algorithm is given for a particular equation, the evaluations have been carried out in a very general manner and the algorithm can be straightforwardly applied to a wide variety of nonlinear integro-differential equations.
title: Οικονομική αξιολόγηση βιοχημικού εργαστηρίου Δημόσιου Νοσοκομείου-κοστολόγηση βιοχημικών εξετάσεων της Νοσηλευτικής Μονάδας Καλαμάτας του Γ.Ν. Μεσσηνίας
title: Economic evaluation of a biochemical laboratory of a Public Hospital-costing of biochemical examinations of the Kalamata Nursing Unit of G.N. Messinia
titleType: AlternativeTitle
Creators: name: Θεοδωρακοπούλου, Αλεξία
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2023
Subjects: subject: Νοσοκομεία, Δημόσια -- Ελλάδα
subject: Νοσοκομεία, Δημόσια -- Οικονομική αξιολόγηση
subject: Οικονομικά της υγείας
subject: Κόστος
subject: Οικονομική αξιολόγηση
subject: Τιμολόγηση
subject: Cost
subject: Economic evaluation
subject: Pricing

description: Μ.Δ.Ε. 82
description: Η παγκόσμια υγειονομική κρίση λόγω της νόσου COVID-19, είχε άμεσο αντίκτυπο στο σύστημα της υγείας στην χώρα μας που παρουσίαζε ήδη σημαντικά δημοσιονομικά και διαρθρωτικά προβλήματα εξαιτίας της οικονομικής κρίσης. Τα δημόσια νοσοκομεία που βίωσαν και βιώνουν την κρίση της Πανδημίας, συνεχίζουν να προσφέρουν στο μέγιστο τις υπηρεσίες τους. Ο εργαστηριακός τομέας σε συνεργασία με τους κλινικούς ιατρούς θεωρείται η ραχοκοκαλιά του συστήματος υγείας καθώς μαζί συμβάλλουν στην πρόληψη, τη διάγνωση και τη θεραπεία του ασθενούς. Στην παρούσα μελέτη επιχειρείται η οικονομική αξιολόγηση του Βιοχημικού Εργαστηρίου του Γενικού Νοσοκομείου Μεσσηνίας-Νοσηλευτική Μονάδα Καλαμάτας, το έτος 2021, ενώ παράλληλα διερευνάται η επίδραση της ζήτησης διαγνωστικών εξετάσεων την περίοδο των ετών 2016 έως το 2021. Βασικός σκοπός της μελέτης είναι ο προσδιορισμός του κόστους των υπηρεσιών, το αποτέλεσμα της οικονομικής χρήσης του τμήματος και η αποδοτικότητα του εργαστηρίου. Τα ευρήματα της οικονομικής αξιολόγησης αποδεικνύουν ότι η λειτουργία του Βιοχημικού Εργαστηρίου αποτελεί σημαντικό έσοδο για το νοσοκομείο. Επιπλέον, ο υψηλός δείκτης αποδοτικότητας του εξεταζόμενου έτους και η παρατηρούμενη αύξηση της ζήτησης για διαγνωστικές εξετάσεις ειδικά στην κορύφωση της κρίσης, καταδεικνύουν την αποτελεσματική λειτουργία του εργαστηρίου.
Exploring the Contributions of Indian Philosophy in Cultivating the Inner Potential of Educators: A School Administrator's Quest for Self-Realization
Creators: name: Mitchell-Pellett, Mary-Ann
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: General
subject: Leadership
subject: Spirituality
subject: Formation

description: This qualitative auto-ethnographic study was an exploration of the relevance of personal wholeness in my life as a teacher and an educational leader. It allowed me to further understand the ways I became “divided” from my True Self through the “deforming” processes located in many cultural contexts, which included educational institutions. This study also examined the reasons that I - a middle-class white female Canadian raised in a popular Western Christian faith - embraced Eastern (primarily Indian) philosophy on my healing journey. My story revealed the “delusion of separateness” from True Being, and the ways that I was reunited with my fundamental essence through a transformational process supported by Indian teachings and practices. Seven other educator participants accompanied me on this journey: four from Canada and/or the United States and three from India – all practitioners of a form of Indian philosophy. This research project analyzed data obtained through participant in-depth interviews and was triangulated with other data sets including their personal narratives, and a focus group. Self-data that was analyzed and shared throughout this study include personal journals, autobiographical writings, and essays and assignments collected over a ten-year period. This study identified three interconnected processes that were crucial to the unfolding of personal wholeness: Calling - Honoring the Call to Wholeness; Turning - Discovering Portals to Wholeness; and Walking - Living into Wholeness. This unfolding of Being, not only personally benefitted the participants, but also provided a variety of benefits for their students, colleagues, and educational institutions they served.
Identifying Genetic Interactions and Target Genes of Schizosaccharomyces pombe Transcription Factors by Functional Genomics
Creators: name: Chatfield-Reed, Katherine
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Microbiology
subject: Biology--Molecular
subject: Genomics
subject: Transcription Factors
subject: Fission Yeast

description: Transcriptional regulation of target genes is a critical component of cellular regulation. Changes in expression profiles characterize different cell types, stages of the cell cycle, reactions to the environment, and many diseases including cancer. Knowledge of transcriptional regulation is critical to understanding environmental adaption, cell fate, and targeted treatment of genetic diseases. Transcription factors do not act in isolation, and often have overlapping target genes or coordinated activity. As such, understanding transcription factors requires a global approach that can be achieved with high-throughput genomics. This study used Schizosaccharomyces pombe as a model organism to look at transcriptional regulation. Expression and chIP microarrays were used to look for the target genes of the calcineurin-responsive transcription factor Prz1. This work uncovered hundreds of putative target genes that were both positively and negatively regulated by Prz1. These genes illuminated an evolutionarily conserved function in the cell wall, and novel roles in flocculation and reproduction. The interplay between transcription factors was examined with a synthetic genetic array screen between the transcription factors. The double deletion mutants that were sicker suggest transcription factors that share target genes or regulate related processes. A full genome screen of Prz1 was used to look for possible genetic activators of Prz1. The pmr1+ calcium transporter gene was shown to negatively interact with prz1+, and increase Prz1 activity in the cell. While the alp31+ cofactor A gene also shared a negative genetic interaction with prz1+, it did not increase Prz1 activity. Finally, a synthetic dosage lethality screen was adapted for S. pombe and used to look for regulators of fourteen transcription factors. This screen found 195 sick interactions between the transcription factors and a miniarray of putative regulators. These interactions included two known upstream regulators of Yox1 and Scr1. It also showed interactions between Scr1 and two genes involved in protein degradation, the E3 ligase Ubr1 and the MYND domain protein SPBC31F10.10c, which are likely responsible for the ubiquitination of Scr1. These results introduce new insight into the S. pombe transcriptional-regulatory network, as well as providing a new methodology for examining genetic relationships in S. pombe in the future.
Оценка возможности продления срока эксплуатации турбогенераторов ТЭС и АЭС
Creators: name: Владимировна, Шевченко Валентина
name: Иванович, Милых Владимир
Publisher: name: Zenodo
Year: 2013
Subjects: атомные электростанции
АЭС
тепловые электростанции
ТЭС
турбогенераторы
ТГ
сроки эксплуатации

description: На русском: [Шевченко В.В., Милых В.И. Оценка возможности продления срока эксплуатации турбогенераторов ТЭС и АЭС // Сборник тезисов международной научно-практической конференции "Современные тенденции ТОиР. Диагностика оборудования горно-металлургического и энергетического комплексов", Мариуполь, 9-10 сентября 2013 г. - Украина, Мариуполь: ПАО "Мариупольский металлургический комбинат имени Ильича", 2013. - С. 66-68. https://doi.org/10.5281/zenodo.2551484]

Обсуждается методика обследования (параметры контроля и порядок оценки состояния) турбогенераторов при продлении сроков их эксплуатации.

Ключевые слова: атомные электростанции, тепловые электростанции, турбогенераторы, ТГ, сроки эксплуатации.

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Anagyrus malenotus De Santis 1972
Creators: name: Triapitsyn, Serguei V.
name: Logarzo, Guillermo A.
name: Aguirre, María B.
name: Aquino, Daniel A.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Anagyrus
Anagyrus malenotus

description: Anagyrus malenotus (De Santis, 1972)
(Figs 27–29)
 Leptomastix malenotus De Santis 1972: 44 –45, 46 (illustration of female antenna). Type locality: Loreto, Misiones, Argentina. Subsequent references: De Santis 1979: 185 (catalog); Loiácono et al. 2001: 154 (type information).
 Apoanagyrus malenotus (De Santis): Noyes 1980: 176 (brief discussion); Kerrich 1982: 413 (discussion), 415 (key); Noyes & Hayat 1994: 305 (revived combination).
 Epidinocarsis malenotus (De Santis): Noyes & Hayat 1984: 273.
 Anagyrus malenotus (De Santis): Noyes 2000: 29, 71 (mentioned).
 Type material examined. Holotype female [MLPA] on slide (Fig. 27) labeled: 1. “LORETO (Prov. de Misiones) Col. Ogloblin 10-V-1932 2682/1 [in pencil, MLPA type number added later]”; 2. “ Leptomastix malenotus Det. De Santis HOLOTIPO ♀ MUSEO DE LA PLATA ”. The holotype (Fig. 29) is in fair condition although poorly cleared, mounted dorsoventrally.
 Distribution. Argentina: Misiones (De Santis 1972).
 Hosts. Unknown.
 Taxonomic notes. This species was described from a single female (De Santis 1972). Both Noyes (1980, 2000) and Kerrich (1982) considered the possibility that it might be a mere color form of A. diversicornis (Howard). Although this is possible, we are not able to properly assess intraspecific variability in A. diversicornis or A. montivagus (De Santis). For practical reasons we prefer to keep all three names as valid, separating the putative species as indicated in the key. The holotype of A. malenotus has the fore wing (Fig. 29) about 2.6× as long as wide, whereas in A. diversicornis it is about 2.5× as long as wide (Noyes 2000). However, coloration of flagellar segments of the female antennae differs between the two. Some other morphological features of the holotype of A. malenotus are as follows: antenna (Figs 28, 29) with scape slender and with a dark brown band in the middle, its length (minus radicle) equal to combined length of F1–F3; apex of pedicel white; F1 dark brown, F2–F6 and clava pale or light brownish; funicular segments and clava with mps (F1 with 1 short mps at apex, F2 with 3, F3 with 4, F4 with 4, F5 with 4, and F6 with 5 mps); clava slightly shorter than combined length of F4–F6; scutellar placoid sensilla closer to apex of scutellum and close to each other; fore wing with postmarginal vein about as long as stigmal vein; ovipositor 1.16× as long as metatibia.
description: Published as part of Triapitsyn, Serguei V., Logarzo, Guillermo A., Aguirre, María B. & Aquino, Daniel A., 2014, Two new species of Anagyrus (Hymenoptera: Encyrtidae) from Argentina, parasitoids of Hypogeococcus spp. (Hemiptera: Pseudococcidae), with taxonomic notes on some congeneric taxa, pp. 201-230 in Zootaxa 3861 (3) on page 219, DOI: 10.11646/zootaxa.3861.3.1, http://zenodo.org/record/250604
Fabulation dans les récits autobiographiques : J.M.G. Le Clézio, Ananda Devi et Kim Thúy
Creators: name: Yuliia, Motuz
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Literature--Modern
subject: Biography
subject: autobiographie
subject: fabulation
subject: ipséité

description: Depuis des années, le brouillage des frontières entre le romanesque et l’autobiographique est devenu un des sujets importants et controversés du monde littéraire. La présence du fictionnel dans les récits de vie devient de plus en plus évidente. Face à l’impossibilité de décrire la réalité telle qu’elle est, les écrivains finissent par la romancer et la fictionnaliser. À partir de trois textes autobiographiques, Les hommes qui me parlent (2011) d’Ananda Devi, L’Africain (2004) de J.M.G. Le Clézio et Ru (2009) de Kim Thúy, nous étudierons les mécanismes qui sont au cœur de la fabulation des écrivains autour de leurs vies : mémoire, mythe et masque. Nous espérons que les conclusions auxquelles nous arriverons nous permettront de mieux comprendre cette tendance contemporaine de mélanger le romanesque et l’autobiographique.
Observation of Landau level-like quantizations at 77 K along a strained-induced graphene ridge
Creators: name: He, Lin
name: Yan, Hui
name: Sun, Yi
name: Nie, Jia-Cai
name: Chan, Moses H. W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recent studies show that the electronic structures of graphene can be modified by strain and it was predicted that strain in graphene can induce peaks in the local density of states (LDOS) mimicking Landau levels (LLs) generated in the presence of a large magnetic field. Here we report scanning tunnelling spectroscopy (STS) observation of nine strain-induced peaks in LDOS at 77 K along a graphene ridge created when the graphene layer was cleaved from a sample of highly oriented pyrolytic graphite (HOPG). The energies of these peaks follow the progression of LLs of massless 'Dirac fermions' (DFs) in a magnetic field of 230 T. The results presented here suggest a possible route to realize zero-field quantum Hall-like effects at 77 K.
Quark contact interactions at the LHC
Creators: name: Bazzocchi, F.
name: De Sanctis, U.
name: Fabbrichesi, M.
name: Tonero, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Quark contact interactions are an important signal of new physics. We introduce a model in which the presence of a symmetry protects these new interactions from giving large corrections in flavor changing processes at low energies. This minimal model provides the basic set of operators which must be considered to contribute to the high-energy processes. To discuss their experimental signature in jet pairs produced in proton-proton colllisions, we simplify the number of possible operators down to two. We show (for a representative integrated luminosity of 200 pb^-1 at \surd s = 7 TeV) how the presence of two operators significantly modifies the bound on the characteristic energy scale of the contact interactions which is obtained by keeping a single operator.
description: 8 pages, 2 figures
Gas transport in out-of-autoclave prepreg laminates
Creators: name: Louis, Bryan Michael
Publisher: name: University of British Columbia
Year: 2010

description: Out-of-autoclave (OOA) pre-impregnated (prepreg) materials are a prospective alternative to traditional autoclave processing, with the potential to reduce processing costs and build structures without size limitations imposed by the autoclave. Gas transport pathways in prepreg laminates play an important role in the removal of entrapped gases and volatiles during processing. Removal of gases by vacuum evacuation is essential in order to produce composite laminates with low final void content. Gas pathways are of particular importance in OOA prepregs where the maximum applied pressure during processing is 1 atm. In this study, the gas transport of OOA prepreg MTM45-1/CF2426A (epoxy/carbon) laminates is examined. The gas permeability of laminates is carefully measured in the in-plane and through-thickness directions. The study examines the effect of the number of layers, the effect of internal ply terminations, and the effects of heat on laminate gas transport. Supplemental experiments such as laminate compaction, microscopy, and water visualization are conducted to gain additional understanding of laminate gas transport. The study shows that gas transport is strongly directional for the studied prepreg with significantly higher permeability in-plane than in the through-thickness direction. Counter-intuitively, the permeability of MTM45-1/CF2426A is not found to be greater than autoclave prepreg when compared to carbon/epoxy Toray 3900-2 (plain weave). The physical nature of gas transport pathways in MTM45-1/CF2426A prepreg laminates is found to change with processing state. Debulking was found to decrease in-plane gas transport from its as-laid-up permeability. Laminate heating is found to affect laminate gas transport. In-plane permeability decreased with increasing temperature, while through-thickness permeability increased with increasing temperature. Correlations between gas transport and laminate compaction is also evident. During debulking, laminate compaction is found to correlate to decreasing in-plane permeability. Additionally, laminate compaction is found to relate to the quality of edge breathing.
Cold Dark Matters in U(1)' Models
Creators: name: Omura, Yuji
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider models with extra U(1)' gauge symmetry that is broken spontaneously. In the models, there are cold dark matter candidates which are charged under U(1)' symmetry. Depending on the charge assignment, we can evade the strong bound from the Drell-Yang process, and consider the scenario that the dark matters strongly interact with the fermions in the Standard Model through the extra gauge boson exchanging. As an illustrative example, we discuss a supersymmetric gauged U(1)_B \times U(1)_L model and see that not only correct relic density but also the DAMA/CoGeNT excess can be achieved by the dark matters.
description: 5 pages, 2 figures. Talk given at the 7th international workshop on the dark side of the Universe (DSU2011), Sept.26-30, KITPC, Beijing. To appear in the proceedings
Wireless Sensor Networks Lifetime Extension and a New Approach to Coverage Analysis
Creators: name: Rafiei Karkvandi, Hamid
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Engineering--Electronics and Electrical
subject: Wireless Sensor Network
subject: Lifetime-Aware Routing
subject: Sensing Spatial Coverage
subject: SSC
subject: Collection Tree Protocol
subject: Lifetime Improved Collection Tree Protocol
subject: Constant Transmission Power Flow Augmentation
subject: LICTP

description: Wireless Sensor Network (WSN) is a self-organizing, infrastructure-less network of miniature sensors. In this study, we introduce the concept of coverage confidence level and present a detailed analysis on Sensing Spatial Coverage (SSC) of WSN. This analysis aims to determine the required resources for WSN design and implementation. A detailed mathematical sensing model is proposed for photodiodes for a fire detection application. This work also considers the sensors directionality. Afterwards, an improved network lifetime definition is proposed based on the SSC analysis which is more consistent with real-world applications. Finally, a novel routing protocol known as the Lifetime Improved Collection Tree Protocol (LICTP) is proposed, and implemented. LICTP’s performance is evaluated and analyzed via simulations and experiments on a lab set-up that consisted of 25 motes. Results show that LICTP improves the lifetime efficiency by a factor of 2.3 - 2.8 in comparison with commonly used Collection Tree Protocol (CTP).
Triply efficient shadow tomography
Creators: name: King, Robbie
name: Gosset, David
name: Kothari, Robin
name: Babbush, Ryan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Given copies of a quantum state $ρ$, a shadow tomography protocol aims to learn all expectation values from a fixed set of observables, to within a given precision $ε$. We say that a shadow tomography protocol is triply efficient if it is sample- and time-efficient, and only employs measurements that entangle a constant number of copies of $ρ$ at a time. The classical shadows protocol based on random single-copy measurements is triply efficient for the set of local Pauli observables. This and other protocols based on random single-copy Clifford measurements can be understood as arising from fractional colorings of a graph $G$ that encodes the commutation structure of the set of observables. Here we describe a framework for two-copy shadow tomography that uses an initial round of Bell measurements to reduce to a fractional coloring problem in an induced subgraph of $G$ with bounded clique number. This coloring problem can be addressed using techniques from graph theory known as chi-boundedness. Using this framework we give the first triply efficient shadow tomography scheme for the set of local fermionic observables, which arise in a broad class of interacting fermionic systems in physics and chemistry. We also give a triply efficient scheme for the set of all $n$-qubit Pauli observables. Our protocols for these tasks use two-copy measurements, which is necessary: sample-efficient schemes are provably impossible using only single-copy measurements. Finally, we give a shadow tomography protocol that compresses an $n$-qubit quantum state into a $\text{poly}(n)$-sized classical representation, from which one can extract the expected value of any of the $4^n$ Pauli observables in $\text{poly}(n)$ time, up to a small constant error.
SAÚDE DO HOMEM: PREVENÇÃO É FUNDAMENTAL PARA UMA VIDA SAUDÁVEL
Creators: name: Da Silva, Maria Fernanda Bandeira
Publisher: name: Zenodo
Year: 2020
Subjects: Política de Saúde. Prevenção de doenças. Saúde do homem.

description: Os homens apresentam resistência para a realização de exames regulares, o que dificulta o diagnóstico precoce das enfermidades.
 Por isso, põe-se em pauta a promoção e prevenção à saúde masculina mediante as diretrizes da PNAISH, que visa diminuir os índices de morbimortalidade. Objetivo: analisar publicações sobre a prevenção de doenças e agravos à saúde do homem. Metodologia: trata-se de uma revisão de literatura, em que foram realizadas pesquisas na base de dados eletrônicos SciELO. Foram utilizados os descritores “Saúde do Homem”, “Política de Saúde”, e “Prevenção de Doenças". Inicialmente, foram lidos os títulos de cada pesquisa, e selecionados os que demonstravam conexão com a temática, depois foi realizada a leitura dos resumos e a seleção final. Foram selecionados 5 artigos que apresentaram maior número de evidências publicados entre 2015 a 2020. Resultados: é notável a alta negligência dos homens com a própria saúde. Por isso, é importante a implementação de estratégias educativas voltadas para prevenção dos agravos à saúde masculina, considerando-se uma sociedade circuncidada por machismo e carência de conhecimento. Conclusão: as informações, serviços e ações de saúde devem ter incentivos educacionais eficientes e adaptados à população alvo, para um melhor engajamento de políticas públicas.
MWS-Regeln zur Sicherung guter wissenschaftlicher Praxis
Creators: name: Max Weber Stiftung - Deutsche Geisteswissenschaftliche Institute im Ausland
Publisher: name: Zenodo
Year: 2023
Subjects: Policy
Max Weber Stiftung
wissenschaftliche Praxis

description: Der Stiftungsrat der Max Weber Stiftung (MWS) hat im Mai 2022 vorliegende Regeln beschlossen, welche die zentralen Standards guter wissenschaftlicher Praxis in den Einrichtungen der MWS zusammenfassen und das Verfahren im Falle ihrer Nichtbeachtung beschreiben. Diese basieren auf den Leitlinien zur Sicherung guter wissenschaftlicher Praxis der Deutschen Forschungsgemeinschaft vom September 2019.
Surface tension of multi-phase flow with multiple junctions governed by the variational principle
Creators: name: Matsutani, Shigeki
name: Nakano, Kota
name: Shinjo, Katsuhiko
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We explore a computational model of an incompressible fluid with a multi-phase field in three-dimensional Euclidean space. By investigating an incompressible fluid with a two-phase field geometrically, we reformulate the expression of the surface tension for the two-phase field found by Lafaurie, Nardone, Scardovelli, Zaleski and Zanetti (J. Comp. Phys. \vol{113} \yr{1994} \pages{134-147}) as a variational problem related to an infinite dimensional Lie group, the volume-preserving diffeomorphism. The variational principle to the action integral with the surface energy reproduces their Euler equation of the two-phase field with the surface tension. Since the surface energy of multiple interfaces even with singularities is not difficult to be evaluated in general and the variational formulation works for every action integral, the new formulation enables us to extend their expression to that of a multi-phase ($N$-phase, $N\ge2$) flow and to obtain a novel Euler equation with the surface tension of the multi-phase field. The obtained Euler equation governs the equation of motion of the multi-phase field with different surface tension coefficients without any difficulties for the singularities at multiple junctions. In other words, we unify the theory of multi-phase fields which express low dimensional interface geometry and the theory of the incompressible fluid dynamics on the infinite dimensional geometry as a variational problem. We apply the equation to the contact angle problems at triple junctions. We computed the fluid dynamics for a two-phase field with a wall numerically and show the numerical computational results that for given surface tension coefficients, the contact angles are generated by the surface tension as results of balances of the kinematic energy and the surface energy.
description: 54 pages, 3 figures
The Hermeneutics of Inclusion
Creators: name: Gilham, Christopher
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Education--History of
subject: Education--Philosophy of
subject: Education--Special
subject: Inclusion

description: This thesis explored the topic of inclusion using Hans-Georg Gadamer’s hermeneutics. Specifically, this thesis examined inclusion for students in K-12 codified as having severe emotional and behavioural disabilities (EBD) in the province of Alberta, Canada. The current trend in Alberta to talk about an inclusive education system could be seen as a response to the ongoing exclusion of students with EBD over the past 100 years. The research within this thesis involved interviewing three educators who de-segregated a highly specialized class for students with severe EBD to create inclusive classrooms. They implemented a co-operative teaching and inquiry based model for their year-long project. According to the educators interviewed, student’s academic skills and understanding improved and negative student behaviours diminished significantly. Themes emerged which contributed to the success of inclusion: listening and tactfully responding to questions students have about one another and curriculum topics; educators’ openness to ask questions of themselves and one another; seeing all students as capable learners; working in teams to facilitate and guide student learning; administrative support for inclusion; and inquiry based learning.
Assessment of the Rat Tapeworm Hymenolepis diminuta and its Antigens in the Treatment of DNBS Colitis
Creators: name: Campbell, Alec
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Animal Physiology
subject: Parasitology
subject: Immunology
subject: FOS: Clinical medicine
subject: Pharmacology

description: The concept of helminth therapy for autoinflammatory disorders is well-established. We utilized the H. diminuta-mouse model system to explore novel therapeutic options. We hypothesized that an optimal treatment regimen for H. diminuta existed which would be ideal for further study. Mice were infected with H. diminuta, or injected with one of two H. diminuta protein extracts, and the impact of this on dinitrobenzene sulphonic acid (DNBS)-induced colitis assessed. We found infection with a single H. diminuta significantly protected mice from DNBS. A single intraperitoneal injection of H. diminuta soluble products was also protective. Selective degradation of H. diminuta soluble products revealed a glycosylated, heat-stable immunomodulator. Finally, treatment with H. diminuta excretory-secretory products was effective at blocking DNBS. We conclude that infection with H. diminuta could be developed therapeutically for IBD and that further studies investigating the mechanism of H. diminuta’s immunomodulation should focus on the study of its excretory-secretory products.
Multicanonical entropy like-solution of statistical temperature weighted histogram analysis method (ST-WHAM)
Creators: name: Rizzi, Leandro G.
name: Alves, Nelson A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A multicanonical update relation for calculation of the microcanonical entropy $S_{micro}(E)$ by means of the estimates of the inverse statistical temperature $β_S$, is proposed. This inverse temperature is obtained from the recently proposed statistical temperature weighted histogram analysis method (ST-WHAM). The performance of ST-WHAM concerning the computation of $S_{micro}(E)$ from canonical measures, in a model with strong free-energy barriers, is also discussed on the basis of comparison with the multicanonical simulation estimates.
description: 10 pages, 2 figures
The Effects of Prebiotic Fibre Intake on Appetite and Body Mass Index z-score in Overweight and Obese Children.
Creators: name: Hume, Megan
Publisher: name: Graduate Studies
Year: 2015
Subjects: Nutrition

description: The aim of this thesis was to determine the effects of prebiotic fibre intake on appetite control and BMI z-score in 42 overweight and obese, male and female children ages 7 to 12 years old. Participants were randomly assigned to the: a) prebiotic fibre group (8 g/d of oligofructose-enriched inulin) or b) placebo group (3.3 g/d of maltodextrin) for 16 weeks. Visual analogue scales indicate that the prebiotic fibre group reported lower prospective food consumption and experienced greater feelings of fullness following meal consumption. Prebiotic supplementation significantly reduced energy intake at an ad libitum breakfast buffet in 11 and 12 year olds and increased fasting ghrelin concentrations. The prebiotic fibre group also showed a trend towards a greater reduction in BMI z-scores. This study demonstrates that the simple addition of prebiotic fibre to the diet of overweight and obese children improves aspects of appetite regulation.
Image segmentation of treated and untreated tumor spheroids by Fully Convolutional Networks
Creators: name: Streller, Matthias
name: Michlíková, Soňa
name: Ciecior, Willy
name: Lönnecke, Katharina
name: Kunz-Schughart, Leoni A.
name: Lange, Steffen
name: Voss-Böhme, Anja
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Quantitative Methods (q-bio.QM)
subject: Tissues and Organs (q-bio.TO)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Multicellular tumor spheroids (MCTS) are advanced cell culture systems for assessing the impact of combinatorial radio(chemo)therapy. They exhibit therapeutically relevant in-vivo-like characteristics from 3D cell-cell and cell-matrix interactions to radial pathophysiological gradients related to proliferative activity and nutrient/oxygen supply, altering cellular radioresponse. State-of-the-art assays quantify long-term curative endpoints based on collected brightfield image time series from large treated spheroid populations per irradiation dose and treatment arm. Here, spheroid control probabilities are documented analogous to in-vivo tumor control probabilities based on Kaplan-Meier curves. This analyses require laborious spheroid segmentation of up to 100.000 images per treatment arm to extract relevant structural information from the images, e.g., diameter, area, volume and circularity. While several image analysis algorithms are available for spheroid segmentation, they all focus on compact MCTS with clearly distinguishable outer rim throughout growth. However, treated MCTS may partly be detached and destroyed and are usually obscured by dead cell debris. We successfully train two Fully Convolutional Networks, UNet and HRNet, and optimize their hyperparameters to develop an automatic segmentation for both untreated and treated MCTS. We systematically validate the automatic segmentation on larger, independent data sets of spheroids derived from two human head-and-neck cancer cell lines. We find an excellent overlap between manual and automatic segmentation for most images, quantified by Jaccard indices at around 90%. For images with smaller overlap of the segmentations, we demonstrate that this error is comparable to the variations across segmentations from different biological experts, suggesting that these images represent biologically unclear or ambiguous cases.
description: 30 pages, 23 figures
A generating-function approach to modelling complex contagion on clustered networks with multi-type branching processes
Creators: name: Keating, Leah A.
name: Gleeson, James
name: O'SULLIVAN, DAVID
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 49
subject: Mathematical sciences

description: Understanding cascading processes on complex network topologies is paramount for modelling how diseases, information, fake news and other media spread. In this article, we extend the multi-type branching process method developed in Keating et al., (2022), which relies on networks having homogenous node properties, to a more general class of clustered networks. Using a model of socially inspired complex contagion we obtain results, not just for the average behaviour of the cascades but for full distributions of the cascade properties. We introduce a new method for the inversion of probability generating functions to recover their underlying probability distributions; this derivation naturally extends to higher dimensions. This inversion technique is used along with the multi-type branching process to obtain univariate and bivariate distributions of cascade properties. Finally, using clique-cover methods, we apply the methodology to synthetic and real-world networks and compare the theoretical distribution of cascade sizes with the results of extensive numerical simulations.
Creating safety in an emergency department
Creators: name: Hunte, Garth Stephen
Publisher: name: University of British Columbia
Year: 2010

description: Hospital emergency departments (EDs) are complex, high-hazard sociotechnical systems with distinction as sites of the highest proportion of preventable patient harm. Patient safety is threatened by abbreviated and uneven care in an interrupted environment marked by uncertainty, multiple transitions over space and time, and mismatch between demand and resources. Recommendations for reporting systems, standardization, and ‘safety culture’ are at the forefront of local, national, and international strategies to improve patient safety. British Columbia is currently implementing a provincial electronic Patient Safety Learning System to enhance reporting and learning, and to facilitate a culture of safety. However, the concept of ‘safety culture’, while popular and political, remains problematic and theoretically underspecified. Moreover, there is lack of clear evidence about how emergency care providers conceptualize, make sense of, and learn from patient safety incidents, and limited evidence to guide an effective safety learning strategy for providers and staff in a busy ED. In this multi-perspective, multi-method, practice-based ethnographic inquiry conducted at an inner city, tertiary care ED, I explore how ED practitioners and staff create safety in patient care in their everyday practice. In this context, ‘safety’ is an emergent phenomenon of collective joint action, enacted dialogically by multiple actors, within a resilient system imbued with multiple social, cultural and political meanings. I claim that patient safety within an ED (and likely in other health care settings) is most effectively created through dialogic storying, resilience, and phronesis. I present an alternative account to the dominant “medical error” and bureaucratic “measure and manage” discourse, and propose an approach to creating safety, including an open communicative space to facilitate sharing stories and learning about patient safety incidents, a safety action team charged with systems analysis and empowered to enact change, and an inter-professional simulation learning environment to enhance dialogic sensemaking and innovation, that offers more to facilitate safety and resilience in everyday practice. I advocate for a pragmatic practice-based account of patient harm within an ongoing reflective conversation about safety and performance, and for foresight and resilience in anticipating and responding to the complexities of everyday emergency care.
Vuzik: Exploring a Medium for Painting Music
Creators: name: Pon, Aura
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Music
subject: Vuzik
subject: Music
subject: painting
subject: composing
subject: score
subject: computer
subject: NIME
subject: interface

description: What if one could paint music? Music is often shaped by the medium we use to interact with it, and thus the development of different ways to compose and experience music can open up new creative possibilities to people. This somewhat whimsical proposition of painting music, and a quest to find a new medium to create, experience, and interact with music, gave impetus and shape to the development of a musical interface known as Vuzik. Vuzik is an interface for creating and visualizing music through painting gestures on a large interactive surface. This thesis presents the vision, design and implementation of Vuzik. It then describes explorations of it as a tool for music education, and for the performance and creation of electronic music. Finally, it presents evaluation efforts of Vuzik in its performance of each of these explorations, and reflects on their implications regarding the nature and potential of Vuzik.
On Pulsar-Driven Mass Ejection in Low-Mass X-ray Binaries
Creators: name: Fu, Lei
name: Li, Xiang-Dong
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: There is accumulating evidence for mass ejection in low-mass X-ray binaries (LMXBs) driven by radio pulsar activity during X-ray quiescence. In this paper we consider the condition for mass ejection by comparing the radiation pressure from a millisecond pulsar, and the gas pressure at the inner Lagrange point or at the surrounding accretion disk. We calculate the critical spin period of the pulsar below which mass ejection is allowed. Combining with the evolution of the mass transfer rate, we present constraints on the orbital periods of the systems. We show that mass ejection could happen in both wide and compact LMXBs. It may be caused by transient accretion due to thermal instability in the accretion disks in the former, and irradiation-driven mass-transfer cycles in the latter.
description: 11 pages, 3 figures,accepted for publication in RAA
Toward the Verification of a Simple Hypervisor
Creators: name: Dahlin, Mike
name: Johnson, Ryan
name: Krug, Robert Bellarmine
name: McCoyd, Michael
name: Young, William
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: D.2.4

description: Virtualization promises significant benefits in security, efficiency, dependability, and cost. Achieving these benefits depends upon the reliability of the underlying virtual machine monitors (hypervisors). This paper describes an ongoing project to develop and verify MinVisor, a simple but functional Type-I x86 hypervisor, proving protection properties at the assembly level using ACL2. Originally based on an existing research hypervisor, MinVisor provides protection of its own memory from a malicious guest. Our long-term goal is to fully verify MinVisor, providing a vehicle to investigate the modeling and verification of hypervisors at the implementation level, and also a basis for further systems research. Functional segments of the MinVisor C code base are translated into Y86 assembly, and verified with respect to the Y86 model. The inductive assertions (also known as "compositional cutpoints") methodology is used to prove the correctness of the code. The proof of the code that sets up the nested page tables is described. We compare this project to related efforts in systems code verification and outline some useful steps forward.
description: In Proceedings ACL2 2011, arXiv:1110.4473
Anisotropic transport properties in prismatic topological insulator nanowires
Creators: name: Gestsson, Hallmann Oskar
name: Manolescu, Andrei
name: Bardarson, Jens H.
name: Erlingsson, Sigurdur I.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The surface of a three dimensional topological insulator (TI) hosts surface states whose properties are determined by a Dirac-like equation. The electronic system on the surface of TI nanowires with polygonal cross-sectional shape adopts the corresponding polygonal shape. In a constant transverse magnetic field, such an electronic system exhibits rich properties as different facets of the polygon experience different values of the magnetic field due to the changing magnetic field projection between facets. We investigate the energy spectrum and transport properties of nanowires where we consider three different polygonal shapes, all showing distinct properties visible in the energy spectrum and transport properties. Here we propose that the wire conductance can be used to differentiate between cross-sectional shapes of the nanowire by rotating the magnetic field around the wire. Distinguishing between the different shapes also works in the presence of impurities as long as conductance steps are discernible, thus revealing the sub-band structure.
description: 9 pages with 7 figures
Coupling of guided Surface Plasmon Polaritons to proximal self-assembled InGaAs Quantum Dots
Creators: name: Bracher, Gregor
name: Schraml, Konrad
name: Blauth, Mäx
name: Jakubeit, Clemens
name: Müller, Kai
name: Koblmüller, Gregor
name: Bichler, Max
name: Kaniber, Michael
name: Finley, Jonathan J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present investigations of the propagation length of guided surface plasmon polaritons along Au waveguides on GaAs and their coupling to near surface InGaAs self-assembled quantum dots. Our results reveal surface plasmon propagation lengths ranging from 13.4 {\pm} 1.7 μm to 27.5 {\pm} 1.5 μm as the width of the waveguide increases from 2-5 μm. Experiments performed on active structures containing near surface quantum dots clearly show that the propagating plasmon mode excites the dot, providing a new method to spatially image the surface plasmon mode. We use low temperature confocal microscopy with polarization control in the excitation and detection channel. After excitation, plasmons propagate along the waveguide and are scattered into the far field at the end. By comparing length and width evolution of the waveguide losses we determine the plasmon propagation length to be 27.5 {\pm} 1.5 μm at 830 nm (for a width of 5 μm), reducing to 13.4 {\pm} 1.7 μm for a width of 2 μm. For active structures containing low density InGaAs quantum dots at a precisely controlled distance 7-120 nm from the Au-GaAs interface, we probed the mutual coupling between the quantum dot and plasmon mode. These investigations reveal a unidirectional energy transfer from the propagating surface plasmon to the quantum dot. The exquisite control of the position and shape afforded by lithography combined with near surface QDs promises efficient on-chip generation and guiding of single plasmons for future applications in nanoscale quantum optics operating below the diffraction limit.
description: 9 pages, 4 figures, SPIE Photonics West