cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Vom Nowland zum Nextland : eine Methode zur Schulentwicklung im digitalen Wandel : Konzeptpapier
Creators: name: Kortegast, Vanessa
name: Röwert, Ronny
name: Ladwig, Tina Jessica
Publisher: name: Technische Universität Hamburg, ITBH
Year: 2021
Subjects: subject: Schulentwicklung
subject: Digitalisierung
classificationCode: 370
subject: Erziehung, Schul- und Bildungswesen

description: Diese Anleitung zur Methode „Vom Nowland zum Nextland“ dient Schulleitungen und der Schulgemeinschaft als Praxisleitfaden für ein anwendungsnahes, strukturiertes und zukunftsgerichtetes Verfahren für die proaktive Auseinandersetzung mit der Schulentwicklung im digitalen Wandel. Ziel ist es, dass Schulleitungen mit dem Kollegium bzw. der Schulgemeinschaft in einem kreativen Prozess gemeinsame Zielbilder und Entwicklungslinien der eigenen Schule im Handlungsfeld Digitalisierung sowie in der Medienbildung herausarbeiten. Im Rahmen des strukturierten Verfahrens durchlaufen die Teilnehmenden drei angeleitete Arbeitsaufträge, angelehnt an das Format der Zukunftswerkstatt, jedoch bereits operationalisiert. Das Ergebnis ist eine ideenreiche und gemeinsam mit dem Kollegium erarbeitete Landkarte, welche zum einen den Status quo der eigenen Schule aufzeigt, zukünftige Entwicklungslinien und Zielbilder der Schule skizziert und mögliche Maßnahmen zur Erreichung dieser visualisiert.
description: The instructions for the method "From Nowland to Nextland" serves as an easily applicable, structured and future-oriented procedure for school administrators and the school community to proactively deal with school development in the digital age. The aim is to develop common goals for schools in the field of digital transformation and media education in creative ways with the staff and the school community. Within the framework of the structured process, the participants go through three guided work assignments. It results in a mapping of the vision of a school, rich in ideas and developed together with the staff, which shows the status quo of their own school, outlines future lines of development and goals for the school and visualises possible measures to achieve them.
THE EFFECT OF CERTAIN SUBSTANCES ON THE GROWTH OF PUMPKIN SEEDS
Creators: name: Foziljonov Shukrullo Fayzullo Ugli
name: Numonjonov Mukhiddin Gulomjon Ugli
Publisher: name: Science and Education
Year: 2020
Subjects: Cucurbitaceae Juss
Cucurbita L
chemical composition
сucurbita Fructus
grow
vegetation time
medicaments

description: In this article, cultivated squash species belonging to the genus Cucurbitaceae Juss (Cucurbita L.), botanical and morphophysiological characteristics of their most cultivated varieties, the chemical composition of some species, some biologically and chemically active for seed germination detailed information on the effects of substances as well as various factors.The main purpose of this study is to determine the laws of seasonal growth and development, composition, and importance of melon seeds for the most widely grown varieties of melons in the country and some imported hybrids.
Summary report of baseline surveys and installations conducted in 2015 in the National Marine Sanctuary of American Samoa.
Creators: name: Coral Reef Ecosystem Program (U.S.)
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Pacific Islands Fisheries Science Center.
Year: 2016
Subjects: subject: Coral reefs and islands--Monitoring--American Samoa.

description: This report describes baseline surveys conducted as a partnership between the Coral Reef Ecosystem Division (CRED) and the National Marine Sanctuary of American Samoa (NMSAS) in February and March 2015. CRED implements the Pacific Reef Assessment and Monitoring Program (RAMP), an ecosystem-scale interdisciplinary coral reef monitoring program. This partnership with NMSAS enabled additional sampling work which focused on the marine sanctuaries of American Samoa. Collectively, these resulting data provide a baseline assessment of American Samoa’s sanctuaries. Furthermore, since the survey method and design are also implemented as part of Pacific RAMP, these data are directly comparable to data from elsewhere in the region. The intention here is to continue this work periodically so that the status of biological communities within sanctuaries can be tracked over time and in comparison to reef areas outside of the sanctuaries.
Wigner function for a particle in an infinite lattice
Creators: name: Hinarejos, Margarida
name: Pérez, A.
name: Bañuls, Mari-Carmen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the Wigner function for a quantum system with a discrete, infinite dimensional Hilbert space, such as a spinless particle moving on a one dimensional infinite lattice. We discuss the peculiarities of this scenario and of the associated phase space construction, propose a meaningful definition of the Wigner function in this case, and characterize the set of pure states for which it is non-negative. We propose a measure of non-classicality for states in this system which is consistent with the continuum limit. The prescriptions introduced here are illustrated by applying them to localized and Gaussian states, and to their superpositions.
description: 19 pages (single column), 7 figures
Messinstrument für Eigenschaften eines strömenden Mediums
Creators: name: Kern, Thorsten Alexander
name: Schlüter, Michael
Publisher: name: TUHH Universitätsbibliothek
Year: 2020
Subjects: classificationCode: 600
subject: Technik
classificationCode: 620
subject: Ingenieurwissenschaften

description: [DE] Messinstrument (1) für die räumliche Verteilung mindestens einer Eigenschaft eines strömenden Mediums (2), umfassend eine von dem Medium (2) durchströmbare dreidimensionale Struktur (3) aus mindestens einem elektrisch leitenden oder halbleitenden Material, weiterhin umfassend eine Vielzahl von Kontaktierungsmitteln (4), wobei jedes Kontaktierungsmittel (4) einen definierten Ort (4a) innerhalb der dreidimensionalen Struktur (3) kontaktiert und es somit ermöglicht, an diesem Ort (4a) eine elektrische Spannung an die dreidimensionale Struktur (3) anzulegen und/oder abzugreifen, und/oder einen elektrischen Strom in die dreidimensionale Struktur (3) einzuleiten und/oder aus der dreidimensionalen Struktur auszuleiten.Durchströmbarer Reaktor (10) mit dem Messinstrument (1).Verfahren (100) zum Betreiben des Messinstruments (1), wobei Linienintegrale (9) des elektrischen Widerstands, der Impedanz und/oder einer hieraus abgeleiteten Größe zwischen den Orten (4a, 4a') vieler Paarungen (4c) ermittelt werden (110) und wobei durch tomographische Rekonstruktion aus den Linienintegralen eine räumliche Verteilung (9a) der interessierenden Größe ermittelt wird (120).
Possible corrections to quantum mechanical predictions in hidden variable model
Creators: name: Budiyono, Agung
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive possible corrections to the statistical predictions of quantum mechanics in measurement over ensemble of identically prepared system based on a hidden variable model of quantization developed in the previous work. The corrections are characterized by a dimensionless parameter $σ$ and the prediction of quantum mechanics is reproduced in the formal limit $σ\rightarrow 0$. Quantum mechanics is argued to be reliable for sufficiently low quantum number.
description: 24 pages, to appear in Physica A
Shock equations and jump conditions for the 2D Adjoint Euler equations
Creators: name: Lozano, Carlos
name: Ponsin, Jorge
Publisher: name: arXiv
Year: 2024
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This paper considers the formulation of the adjoint problem in two dimensions when there are shocks in the flow solution. For typical cost functions, the adjoint variables are continuous at shocks, where they have to obey an internal boundary condition, but their derivatives may be discontinuous. The derivation of the adjoint shock equations is reviewed and detailed predictions for the behavior of the gradients of the adjoint variables at shocks are obtained as jump conditions for the normal adjoint gradients in terms of the tangent gradients. Several numerical computations on a very fine mesh are used to illustrate the behavior of numerical adjoint solutions at shocks.
description: Accepted version
Supersymmetry in Light of 1/fb of LHC Data
Creators: name: Buchmueller, O.
name: Cavanaugh, R.
name: De Roeck, A.
name: Dolan, M. J.
name: Ellis, J. R.
name: Flacher, H.
name: Heinemeyer, S.
name: Isidori, G.
name: Santos, D. Martinez
name: Olive, K. A.
name: Rogerson, S.
name: Ronga, F. J.
name: Weiglein, G.
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: We update previous frequentist analyses of the CMSSM and NUHM1 parameter spaces to include the public results of searches for supersymmetric signals using ~1 /fb of LHC data recorded by ATLAS and CMS and ~0.3/fb of data recorded by LHCb in addition to electroweak precision and B-physics observables. We also include the constraints imposed by the cosmological dark matter density and the XENON100 search for spin-independent dark matter scattering. The LHC data set includes ATLAS and CMS searches for jets + missing ET events and for the heavier MSSM Higgs bosons, and the upper limits on B_s to mu^+ mu^- from LHCb and CMS. The absences of jets + missing ET signals in the LHC data favour heavier mass spectra than in our previous analyses of the CMSSM and NUHM1, which may be reconciled with (g-2)_mu if tan beta ~ 40, a possibility that is however under pressure from heavy Higgs searches and the upper limits on B_s to mu^+ mu^-. As a result, the p-value for the CMSSM fit is reduced to ~ 15 (38)%, and that for the NUHM1 to ~ 16 (38)%, to be compared with ~ 9 (49)% for the Standard Model limit of the CMSSM for the same set of observables (dropping (g-2)_mu), ignoring the dark matter relic density in both cases. We discuss the sensitivities of the fits to the (g-2)_mu and b to s gamma constraints, contrasting fits with and without the (g-2)_mu constraint, and combining the theoretical and experimental errors for b to s gamma linearly or in quadrature. We present predictions for m_gluino, B_s to mu^+ mu^-, M_h and M_A, and update predictions for spin-independent dark matter scattering, stressing again the importance of taking into account the uncertainty in the pi-nucleon sigma term, Sigma_{pi N}. Finally, we present predictions based on our fits for the likely thresholds for sparticle pair production in e^+e^- collisions in the CMSSM and NUHM1.
description: 25 pages, 36 figures
Accurate Photoionization Models of Nebula in Three Dimensions
Creators: name: Jin, Yifei
Publisher: name: The Australian National University
Year: 2023

description: Accurate predictions of the physics of interstellar medium are vital for understanding galaxy formation and evolution. Modeling photoionized regions with complex geometry produces realistic ionization structures within the nebulae, providing the necessary physical predictions to interpret data. 3D photoionization codes built with Monte Carlo techniques provide powerful tools to produce the ionizing radiation field with fractal geometry, which includes the regions ionized by both stellar and diffuse photons. In the first part of this thesis, we will present the observation of four nearby HII regions in the Large Magellanic Cloud and the Small Magellanic Cloud through the integral field spectrograph. Our observations demonstrate that the current photoionization models cannot reproduce the complex structures of the nebulae. A new self-consistent photoionization model with arbitrary geometry is required. In the second part of this thesis, we will present a new self-consistent three-dimensional photoionization code -- Messenger Monte-Carlo MAPPINGS V (M3), which is designed for modeling nebulae in arbitrary three-dimensional geometries. The new code passes the Kentucky benchmark test to guarantee its accuracy of producing emission-line fluxes. We also create the diffuse ionized gas by using the new photoionization code. The third part of this thesis presents one example nebula model with fractal geometries in 3D, created by the new Monte Carlo MAPPINGS code. The fluxes of emission-lines preferentially located at the nebular boundary are larger in the fractal model than the equivalent spherical model. This thesis is the first to demonstrate the dependence of emission-line behaviors on nebular geometry from theoretical photoionization models. We present the future work in the final part of this thesis. We propose to combine radiation hydrodynamic simulations with the Monte Carlo photoionization code to produce the nebula shaped by stellar feedback. Our research has important implications for studies of the fundamental properties of galaxies using emission lines in the era of large IFU surveys and JWST.
Nonlinear Metasurface for Broad-angle Photon-pair Generation
Creators: name: Jiang, Yuxin
Publisher: name: The Australian National University
Year: 2023
Subjects: Nanophotonics
Nonlinear optics
Quantum optics

description: Entangled photons have found extensive applications in various quantum information technologies. Traditionally, entangled photons are generated through spontaneous para- metric down conversion (SPDC) in bulky nonlinear crystals. The demand for miniaturized quantum optical devices has led to the development of nonlinear metasurfaces (NMs) as a potential replacement for these nonlinear crystals. NMs are 2D arrays of nanoresonators integrated with ultrathin nonlinear material films. By manipulating the geometry, mate- rial, and arrangement of nanoresonators, it is possible to tailor the resonant behavior of the NM and thereby control various nonlinear optical processes. Nonetheless, the spatial emission angles of photons from previously studied NMs were inherently constrained due to the strong angular dispersion of optical resonances. To be effectively used in quantum imaging applications, it is crucial to achieve broad-angle SPDC emission, which provides a wide field of view (FOV) and superior resolution. This project aims to pioneer the development of NMs capable of broad-angle SPDC emission. Broad-angle emission necessitates a flat resonance band in the transverse momentum space. Two NM designs were formulated to control the coupling between optical reso- nances and modify the photonic band structures. Through careful design of the meta- surface parameters, flat resonance bands were created in both NM designs. We employed finite element modelling of electromagnetic waves to simulate SPDC emission properties from the designed flat-band NMs. Our optimal results demonstrated uniform emission of photon pairs within a 6° FOV, yielding a total emission rate of 539 Hz/mW, which is approximately 36 times higher than the previously reported values. The broad-angle SPDC emission has proved robustness against variations in experimental parameters within the achievable limits. Following the fabrication of these structures, we are progressing with experiments to directly demonstrate the broad-angle photon-pair generation with non-classical correlations. Our research outcomes hold the potential to open new opportunities for applications in free-space quantum optics, including quantum imaging and quantum communication.
title: Entwicklung eines Modells zur Kosten- und Leistungsbewertung von Containerschiffen in intermodalen Transportketten
title: Development of a model for cost and performance benchmarking of container ships in intermodal transportation chains
titleType: AlternativeTitle
Creators: name: Schönknecht, Axel
Publisher: name: TUHH Universitätsbibliothek
Year: 2007
Subjects: subject: container ships
subject: transportation chain
subject: modeling
subject: cost and performance benchmarking
classificationCode: 330
subject: Wirtschaft
classificationCode: 330
subject: Economics
classificationCode: 85.32
subject: Beschaffung, Materialwirtschaft
subject: Container
subject: Frachtschiff
subject: Kostenrechnung
subject: Leistungsbewertung
subject: Modellierung
subject: Transportkette

description: Gegenstand der Arbeit ist eine Methode zur Kosten- und Leistungsbewertung von Containerschiffen als Transportmittel des Hauptlaufes in intermodalen Transportketten für ISO-Container. Anlass bildet die permanente Größenentwicklung der Containerschiffe und die daraufhin ausgerichtete Infrastruktur- und Transportkettenentwicklung im Vor- und Nachlauf, die nicht risikofrei zu beurteilen ist. Mit der vorgestellten Methode wird deutlich, dass die Erfolgs- bzw. Misserfolgsfaktoren der Großcontainerschiffe fast nur noch in den Häfen und deren Hinterlandanbindungen zu suchen sind.
description: Topic of this article is a method for cost- and performance benchmarking of containerships as means of transport of the main carriage in intermodal transportation chains for ISO-container. Occasion is the permanent growth of ship size and upon that justified infrastruc-ture and transport chain development in precarriage and onward carriage, which is not to be judged risk-free. The presented method will clarify that factors of success and failure depend nearly exclusive on the harbours and their hinterland connection.
The gravitational force and potential of the finite Mestel disk
Creators: name: Schulz, Earl
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Mestel determined the surface mass distribution of the finite disk for which the circular velocity is constant in the disk and found the gravitational field for points in the $z=0$ plane. Here we find the exact closed form solutions for the potential and the gravitational field of this disk in cylindrical coordinates over all the space. The Finite Mestel Disk (FMD) is characterized by a cuspy mass distribution in the inner disk region and by an exponential distribution in the outer region of the disk. The FMD is quite different from the better known exponential disk or the untruncated Mestel disk which, being infinite in extent, are not realistic models of real spiral galaxies. In particular, the FMD requires significantly less mass to explain a measured velocity curve.
A rapid review of community engagement and informed consent processes for adaptive platform trials and alternative design trials for public health emergencies
Creators: name: Harriss, Elinor
name: Dr. Ilja Ormel
name: Dr. Lisa Schwartz
name: Bernier, Alexe
name: Noni Mumba
name: Gobat, Nina
name: Phaikyeong Cheah
name: Dr. Alun Davies
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Rapid review
subject: Consent
subject: Engagement

description: A rapid review to appraise the evidence on engagement and informed consent for ADTs and APTs during PHE to consider what (if any) recommendations can inform practice.
Adaptive diversification in experimental populations of Escherichia coli
Creators: name: Tyerman, Jabus
Publisher: name: University of British Columbia
Year: 2010

description: What processes contribute to the origin and maintenance of biological diversity? When populations occupy different environments, that have divergent ecological characteristics, natural selection can cause each population to adapt to its environment, resulting in phenotypic divergence between populations. But can natural selection cause a single population to diverge? Adaptive dynamics theory predicts that ecological interactions between individuals in a population can result in negative frequency-dependent selection, and the branching of the population into phenotypically distinct subpopulations. Here, I tested predictions from adaptive dynamics theory. To do this, I experimentally evolved populations of the clonal bacterium Escherichia coli in the lab. First, using replicate populations of E. coli that had diversified in parallel, I tested whether convergent ecotypes among replicate populations competed in a likewise manner. I found they do not, suggesting that the genetic underpinnings of the convergent ecotypes among populations were different. The ecological interaction that has received the most attention from adaptive dynamics theory is resource competition, yet there are few direct tests that competition for resources does cause phenotypic distributions to evolve. I used diversified populations of bacteria, and experimentally demonstrated that competition can cause ecological character displacement. Subsequently, I explored whether mutational bias for novelty can regulate adaptive radiation when ecological opportunities and selection were similar. I found an asymmetry in the extent and range of diversification among replicate populations initiated from different genotypes, suggesting that mutational bias can regulate adaptive diversification. Finally, I tested for resource specialization trade-offs by measuring the extent of variation in populations evolved in environments that range in complexity from one to three resources and found that diversity was not related to environmental complexity. Additionally, I explored the role of growth rate vs. yield trade-offs within and among populations that have diversified, and found little support for the hypothesis that these trade-offs underlie adaptive diversification in our bacterial populations. Together, these chapters test the predictions of adaptive diversification, so that we may better understand adaptive diversification in nature.
Computational aspects of nuclear coupled-cluster theory
Creators: name: Hagen, Gaute
name: Nam, Hai Ah
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss computational aspects of the spherical coupled-cluster method specific to the nuclear many-body problem. Using chiral nucleon-nucleon interaction at next-to-next-to-next-to leading order (N3LO) with cutoff Lambda = 500MeV, we present coupled-cluster results for the ground state of 40Ca. Scaling and performance studies are presented together with challenges we meet with when extending the coupled-cluster effort to nuclei mass hundred and beyond.
description: 9 pages, 5 figures, Proceedings for YKIS2011 Symposium
An Administrative response to urban growth pressure
Creators: name: Boon, Carolyn M.
Publisher: name: Environmental Design
Year: 1977
Subjects: subject: HT 127 B64 1977 Microfiche
subject: Urbanization - Alberta - Calgary
subject: Municipal government - Alberta - Calgary
subject: Calgary (Alta.) - City planning
subject: City planning - Alberta

description: Bibliography: p. 236-242.
Report from the Usage Dimensions of Open Workgroup
Creators: name: Archambault, Eric
name: Dempsey, Lorcan
name: Erdmann, Christopher
name: Fulton, Stephanie
name: Magnoni, Dee
name: McElroy, Emily
name: Nurnberger, Amy
name: Strader, Ginger
name: Woert, Michael Van
Publisher: name: Open Scholarship Initiative Proceedings
Year: 2016

description: The Usage Dimensions of Open workgroup came together and considered definitions and priorities around its topic. From priorities, themes were identified. One theme included the character of research outputs and the actual research workflow process. The second theme represented economic considerations. Stakeholders were identified, and solutions considÂ­ered. Solutions included both short- and long-term actions.
OSI2016 Workgroup Question
What are the usage-related challenges currently faced by open efforts? For instance, open data is intriguing in principle, but in reality, making underlying data open can be problematic, conÂ­flicting with the need for research secrecy (whether driven by the desire to be first to publish, or the desire of funders to hold onto data to protect future discovery potential), the potential for misinterpretation by other researchers, and so on. Publishing clinical trial data in open formats is also intriguing but would run afoul of many current consent agreements, particularly older consents. Open access is similarly challenged in some instances by a conÂ­flict between which versions of papers is allowed to appear in open repositories. What is the value of archiving non-final versions? What is the range of issues here, what are the perspecÂ­tives, and what might be some possible solutions?
description: Open Scholarship Initiative Proceedings, 2016
Explaining the Lack of Mesh Convergence of Inviscid Adjoint Solutions Near Solid Walls for Subcritical Flows
Creators: name: Lozano, Carlos
name: Ponsin, Jorge
Publisher: name: arXiv
Year: 2024
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Numerical solutions to the adjoint Euler equations have been found to diverge with mesh refinement near walls for a variety of flow conditions and geometry configurations. The issue is reviewed and an explanation is provided by comparing a numerical incompressible adjoint solution with an analytic adjoint solution, showing that the anomaly observed in numerical computations is caused by a divergence of the analytic solution at the wall. The singularity causing this divergence is of the same type as the well-known singularity along the incoming stagnation streamline and both originate at the adjoint singularity at the trailing edge. The argument is extended to cover the fully compressible case, in subcritical flow conditions, by presenting an analytic solution that follows the same structure as the incompressible one.
description: 20 pages, accepted version
Open EM Data in Switzerland
Creators: name: Bliven, Spencer
name: Ashton, Alun
name: Loewith, Robbie
name: Stahlberg, Henning
Publisher: name: Zenodo
Year: 2023
Subjects: electron microscopy, open research data, data repository, metadata standards, cryoEM, switzerland,

description: Poster describing the Open EM Data Network (OpEM), a consortium of Swiss electron microscopy facilities to improve open research data practices. Abstract The Open EM Data Network (OpEM) is a consortium of Swiss electron microscopy facilities working together to: Improve Open Research Data (ORD) practices in the Swiss EM community Provide an open and FAIR repository for Swiss EM data not hosted elsewhere Standardize EM metadata & automate collection at Swiss EM facilities Follow a consistent data lifecycle when collecting data at different facilities Streamline publication of EM data into open repositories like EMPIAR, EMDB, and the PDB OpEM will target both researchers producing EM data and consumers of open data for additional science. Data producers benefit from more streamlined data collection, standardized facilities, easier deposition for publication, and adherence to data management policies. The wider availability of open EM data brings numerous benefits, including reproducing results, applying new techniques to old data, training AI & other new methods, and mining data for new insights.
Quantitative Imaging and Tomography with Polychromatic X-rays
Creators: name: Huang, Yiyue
Publisher: name: The Australian National University
Year: 2023
Subjects: X-ray computed tomography
polychromatic multi-energy imaging
Alvarez-Macovski model
Two-Material model

description: X-ray computed tomography (XCT) is a powerful tool, renowned for its ability to non-destructively produce highly-detailed 3D images of an object's internal structure. The scanning process captures X-ray projections of the object of interest from various angles and then computationally creates a volumetric map of its X-ray attenuation coefficient. Conventional lab-based XCT invariably employs polychromatic (or broadband) X-ray radiation. This causes imaging artifacts since attenuation (the reconstructed quantity) is a function of X-ray energy, making it difficult to differentiate materials, let alone obtain quantitative information. While some methods have been proposed in the literature, no effective approach has been widely applied. In this work, we propose a two-material (2M) model for polychromatic multi-energy XCT. This model is an alternative to the well-known Alvarez-Macovski (AM) model, that approximates that X-ray attenuation for a material by a simple function of its density, atomic number, and the energy of X-rays. The 2M model assumes that X-ray attenuation for a material can be modeled by a linear combination of that of two known materials (basis materials). We can then effectively reconstruct a quantitative estimate of the material properties: density and atomic number, from those of the two basis materials. Moreover, since these models capture the energy-dependence of attenuation, they inherently account for common tomography artifacts. In simulation tomography, the 2M model showed improved artifact correction and yielded quantitative results comparable to the AM model, with densities and atomic numbers having a relative error within 10\%. Through experiments, we demonstrated that the 2M model can simplify laboratory XCT calibration. Unlike the AM model, which requires full spectrum knowledge, the 2M approach only needs measurements of X-ray attenuation for specific basis material combinations to approximate where our target material fits. While the 2M model exhibited some potential, we further identified its limitations in the lab and suggested future improvements for its mature implementation
Non nodal condensation of eigenvalue problems
Creators: name: Mackens, Wolfgang
name: Voß, Heinrich
Publisher: name: TUHH Universitätsbibliothek
Year: 1997
Subjects: subject: Symmetric eigenvalue problem
subject: Guyan condensation
subject: generalized condensation
classificationCode: 510
subject: Mathematik
subject: Eigenwertproblem
classificationCode: 65F15
subject: Eigenvalues, eigenvectors

description: We generalize the Guyan condensation of large symmetric eigenvalue problems to allow general degrees of freedom to be master variables. On one hand useful information from other condensation methods (such as Component Mode Synthesis) thus can be incorporated into the method. On the other hand this opens the way to iterative refinement of eigenvector approximations. Convergence of such a procedure follows from the result, that one step of (static) condensation is equivalent to one step of inverse subspace iteration. A short outlook on several applications is included.
Design, Synthesis and Physicochemical Analysis of Ruthenium(II) Polypyridyl Complexes for Application in Phototherapy and Nucleic Acid Sensing
Creators: name: Wachter, Erin Melissa
Publisher: name: University of Kentucky
Year: 2016
Subjects: subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Current chemotherapeutics exhibit debilitating side effects as a result of their toxicity to healthy tissues. Reducing these side effects by developing chemotherapeutics with selectivity for cancer cells is an active area of research. Phototherapy is one promising modality for selective treatment, where drug molecules are “turned on” when irradiated with light, reducing damage to healthy tissues by spatially restricting the areas exposed to irradiation. A second approach to improve selectivity is to exploit the differences in cancerous versus healthy cells, such as increased metabolism and/or upregulation of cell surface receptors. Ruthenium(II) polypyridyl complexes are candidates for phototherapy due to their highly tunable photophysical and photochemical properties. The addition of strain to the metal center is a general approach used to render complexes susceptible to light-induced ligand loss. Upon ejection of a ligand, the Ru(II) center is capable of covalently binding biomolecules within cells to produce a cytotoxic effect. The ligands surrounding the metal center are amenable to chemical modification through the incorporation of pendent functional groups as chemical “handles”, allowing for different directing molecules to be attached.  Nucleic acids are important targets for drug discovery, and the development of selective probes to either visualize or selectively damage nucleic acids within the cell is an ongoing area of research. Specifically, G-rich regions are abundant in the human genome, and the presence of G-quadruplexes in telomeres and promoter regions of oncogenes make them potential therapeutic targets. Ru(II) complexes are known to bind nucleic acids, and some have been shown to induce and/or stabilize G-quadruplex Structures. Multiple series of Ru(II) compounds have been synthesized and tested to improve the functional range for Ru(II) complexes for in vivo applications, where they act as “light switches” for DNA. These molecules are “off” when in an aqueous environment but turned “on” in the presence of DNA. Several hit compounds were identified that showed selectivity for specific G-quadruplex structures.
Evaluation of Flocculation, Sedimentation, and Filtration for Dewatering of Algal Biomass
Creators: name: Rhea, Nicholas A.
Publisher: name: University of Kentucky
Year: 2016
Subjects: subject: Bioresource and Agricultural Engineering
subject: Polymer and Organic Materials

description: Algae can be used as a feedstock for agricultural fertilizers, livestock/poultry feeds, anaerobic digestion, and biofuel production. Regardless of the end product, water removal is necessary and difficult to do cost effectively. For each product the requirements for moisture content (or solids content) vary, such that a desirable water removal strategy would need to be adaptable to varying levels of water removal. Flocculation, with sedimentation and drying was evaluated as a possible strategy for algae dewatering. Anionic and nonionic flocculants are known to be ineffective at flocculating algal culture, which was confirmed for this case by electro-osmotic flow testing of the algae and jar tests with three flocculant charge types. Electrophoretic mobility of the algae indicated that it has a negative charge and no flocs were present in the jars. The effectiveness of the cationic flocculant was determined by measuring settling rates, supernatant turbidity, and filtration rates. Sedimentation and filtration rates of Scenedesmus acutus were measured with varying dosages (0-25 ppm) of a synthetic cationic polymeric flocculant. The results of this study should assist in predicting the time it takes to thicken algae at a concentration range of 0.4-1.0 g/L to a product at a concentration range of 15-250 g/L.
Circumstellar Material in Type Ia Supernovae via Sodium Absorption Features
Creators: name: Sternberg, Assaf
name: Gal-Yam, Avishay
name: Simon, Josh D.
name: Leonard, Douglas C.
name: Quimby, Robert M.
name: Phillips, Mark M.
name: Morrell, Nidia
name: Thompson, Ian B.
name: Ivans, Inese
name: Marshall, Jennifer L.
name: Filippenko, Alexei V.
name: Marcy, Geoffrey W.
name: Bloom, Josh S.
name: Patat, Ferdinando
name: Foley, Ryan J.
name: Yong, David
name: Penprase, Bryan E.
name: Beeler, Daniel J.
name: Prieto, Carlos Allende
name: Stringfellow, Guy S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Type Ia supernovae are key tools for measuring distances on a cosmic scale. They are generally thought to be the thermonuclear explosion of an accreting white dwarf in a close binary system. The nature of the mass donor is still uncertain. In the single-degenerate model it is a main-sequence star or an evolved star, whereas in the double-degenerate model it is another white dwarf. We show that the velocity structure of absorbing material along the line of sight to 35 type Ia supernovae tends to be blueshifted. These structures are likely signatures of gas outflows from the supernova progenitor systems. Thus many type Ia supernovae in nearby spiral galaxies may originate in single-degenerate systems.
description: Accepted for publication in Science 5 July 2011
Cities At Night:Iss Pictures To Trace The Environmental Impact The Light Pollution
Creators: name: Sánchez de Miguel, Alejandro
name: Gomez Castaño, Jose
name: Lombraña, Daniel
name: García Sánchez-Carnerero, Lucia
name: Aubé, Martin
name: Dominguez, Alejandro
name: Fernandez, Beatriz
name: Solera, Juan
name: Vela, M.
name: Zamrano, Jaime
name: Gallego, Jesus
name: Other Volunteers
Publisher: name: Zenodo
Year: 2016
Subjects: light pollution
ISS

description: The ISS images are the only multispectral that is able currently to measure the environmental impact of the light pollution. To achive that first we need to tag, locate, and georeference this images. Some examples of the posibilities of the tecnique are presented.
Effects of the reaction cavity on metastable optical excitation in ruthenium-sulfur dioxide complexes
Creators: name: Phillips, Anthony E.
name: Cole, Jacqueline M.
name: d'Almeida, Thierry
name: Low, Kian Sing
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We report photoexcited-state crystal structures for two new members of the [Ru(SO_2)(NH_3)_4X]Y family: 1:X=H2O, Y=(+/-)-camphorsulfonate_2; 2:X=isonicotinamide, Y=tosylate_2. The excited states are metastable at 100 K, with a photoconversion fraction of 11.1(7)% achieved in 1, and 22.1(10)% and 26.9(10)% at the two distinct sites in 2.We further show using solid-state density-functional-theory calculations that the excited-state geometries achieved are strongly influenced by the local crystal environment. This result is relevant to attempts to rationally design related photoexcitation systems for optical data-storage applications.
description: 6 pages, 5 figures
A Comparison of two urban simulation models
Creators: name: Dital, Joseph
Publisher: name: Environmental Design
Year: 1979
Subjects: subject: HT 169 C392 C333 1986
subject: Cities and towns - Simulation methods
subject: Calgary (Alta.) - City planning - Simulation methods
subject: Toronto (Ont.) - City planning - Simulation methods

description: Bibliography: p. 168-175.
Multi-messenger signatures of magnetically dominated baryon-loaded blazar jets
Creators: name: Petropoulou, Maria
Publisher: name: Zenodo
Year: 2023
Subjects: blazars
neutrinos
IceCube

description: Blazars are a rare class of active galactic nuclei (AGN) with relativistic jets pointing towards the observer. In this contribution, we present a simple, yet physically motivated, model for blazar emission. According to this, electrons and protons are energized via magnetic reconnection in parts of the jet where the plasma magnetization is still high (σ>1). The magnetization σ and bulk Lorentz factor Γ are related to the available jet energy per baryon, μ. We also adopt an observationally motivated relation between Γ and the mass accretion rate, which controls the luminosity of external radiation fields. I will present our results about the photon and neutrino jet emission as a function of the fundamental parameters μ, σ, and Γ, and discuss their implications about the contribution of the blazar population to the astrophysical neutrino flux measured by IceCube.
Methods for Efficient Reinforcement Learning in Novel Environments
Creators: name: Nikonova, Ekaterina
Publisher: name: The Australian National University
Year: 2023

description: Recent advancements in artificial intelligence have resulted in remarkable progress in developing systems that can perform tasks at both superhuman and human levels. In deep reinforcement learning, this progress has led to the creation of agents that outperform humans in games such as Atari, Dota 2, and Go. However, these systems often require massive amounts of data and computational resources to learn to perform a single task. When deploying such systems in the real world, it is essential to ensure that they can adapt to changes quickly without needing to retrain from scratch. Creating artificially intelligent systems that can adjust to environmental changes rapidly remains a significant and challenging task. While there have been many approaches to making learning more efficient and adaptable, recent research in lifelong and open-world learning emphasizes the importance of reusing previous knowledge when dealing with novelty. In this thesis, we focus on developing approaches that use previous knowledge and experience to make deep reinforcement learning agents more efficient and adaptable to changes. We present several methods that explore this idea. Our methods vary from using human knowledge and agent observations to measuring the similarity between the tasks and reusing learned policies. We begin by presenting a method that combines deep learning with Newton's laws of physics for accurate trajectory prediction in physical games. We demonstrate that this method has transfer learning capabilities and can transfer from one physical domain to another. We then propose a method to measure the similarity between scenarios and a method to construct a policy from the policies of highly similar tasks. Our results show that the proposed methods allow the agent to solve new scenarios more quickly or even instantly. We then address safety concerns in reinforcement learning by using human-defined safety rules that override the agent's actions if they are considered unsafe, resulting in much more efficient and safer learning. Later, we eliminate the need for human-defined rules by proposing a general framework for deep reinforcement learning agents that discovers task-specific rules and self-supervises its learning. We demonstrate that this approach leads to significantly more efficient learning in domains of various complexities. Finally, we propose a universal method to measure the difficulty of novelties and test it in real-world evaluation. We present the experimental results for all of these methods and show how each method makes learning more efficient and adaptable to sudden changes and novelties.
Implementation of Portion Approach in Distributed Firewall Application for Network Security Framework
Creators: name: Kaur, Harleen
name: E., Omid MahdiEbadati
name: Alm, M. Afshar
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: The stimulate of this research seeks collaboration of firewalls which, could reach to the capability of distributed points of security policy; the front-end entity may much interact by the invaders so the separation between this entity and back-end entity to make the secure domain protection is necessary; collaborative security entity has the various task in the organization and there is a certain security policy to apply in; the entities like DPFF have to be protected from outsiders. Firewalls are utilized typically to be the main layer of security in the network framework. The research is presented the particular segment of the proposed framework that DPFF based on the developed iptable firewall to be the layers of defense, which is protected front and backend of the framework with a dynamic security and policy update to control the framework's safeguard through proposed portion approach algorithm that utilize to reduce the traffic and efficiency in detection and policy update mechanism. The policy update mechanism for DPFF is given the way of its employment. The complete framework signifies a distributed firewall, where the administrator configures the policy rules set, which could be separately or else from administration nodes' side.
description: 11 pages, 8 figurs, 4 tables, IJCSI; ISSN (Online): 1694-0814
Information trade-offs for optical quantum communication
Creators: name: Wilde, Mark M.
name: Hayden, Patrick
name: Guha, Saikat
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Recent work has precisely characterized the achievable trade-offs between three key information processing tasks---classical communication (generation or consumption), quantum communication (generation or consumption), and shared entanglement (distribution or consumption), measured in bits, qubits, and ebits per channel use, respectively. Slices and corner points of this three-dimensional region reduce to well-known protocols for quantum channels. A trade-off coding technique can attain any point in the region and can outperform time-sharing between the best-known protocols for accomplishing each information processing task by itself. Previously, the benefits of trade-off coding that had been found were too small to be of practical value (viz., for the dephasing and the universal cloning machine channels). In this letter, we demonstrate that the associated performance gains are in fact remarkably high for several physically relevant bosonic channels that model free-space / fiber-optic links, thermal-noise channels, and amplifiers. We show that significant performance gains from trade-off coding also apply when trading photon-number resources between transmitting public and private classical information simultaneously over secret-key-assisted bosonic channels.
description: 6 pages, 2 figures, see related, longer article at arXiv:1105.0119
Topics in Sarcee syntax
Creators: name: Hofer, Earl Douglas
Publisher: name: University of Calgary
Year: 1974
Subjects: subject: PM 2275 H62 1974 Microfiche
subject: Sarsi language - Syntax
subject: Indians of North America - Languages

description: Bibliography: p. 67-70.
description: This thesis examines some syntactic rules in Sarcee. Chapter I presents some background material on Sarcee phonology and morphology. A Subject-Object Inversion rule is proposed in Chapter II to account for sentences where the basic word order of Subject - Object - Verb is changed to Object - Subject - Verb. Also in such sentences a Y!_ prefix is attached to the verb. This rule called yi-attachment, must be a separate operation from S-0 Inversion in order to account for sentences in which the verb contains the Y!_ prefix but where S-0 Inversion has not applied. They!_ prefix is attached to a transitive verb when the VP does not contain a NP, i.e. an object. Chapter III examines relative clause formation. A Relativization rule which deletes either the relativized NP or the antecedent NP is consideredQ This analysis fails to account for certain sentences. In an alternative analysis, it is argued that Relativization deletes only the relativized NP, and a Permutation rule, which is independently motivated, accounts for the problematic sentences.
Spin-plasmons in topological insulator
Creators: name: Efimkin, D. K.
name: Lozovik, Yu. E.
name: Sokolik, A. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Collective plasmon excitations in a helical electron liquid on the surface of strong three-dimensional topological insulator are considered. The properties and internal structure of these excitations are studied. Due to spin-momentum locking in helical liquid on a surface of topological insulator, the collective excitations should manifest themselves as coupled charge- and spin-density waves.
description: 3 pages, 2 figures