cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Endure. Correspondence from the island of Tyflonia, Place of Internment For those Afflicted by The Loss
title: Endure : korespondencja z wyspy Tyflonii, miejsca internowania dotkniętych Utratą
titleType: AlternativeTitle
title: Wytrwaj. Znieś. Przetrzymaj
titleType: AlternativeTitle
Creators: name: Robertson, Theodosia
Publisher: name: Agora Publishers
Year: 2009
Subjects: subject: Endure
subject: Halina Bortnowska
subject: search for the meaning of life
subject: epistolary novel
subject: novel in letters
subject: Polish literature
subject: interpersonal relations
subject: feeling
subject: exclusion
subject: social exclusion
subject: isolation
subject: island
subject: monastery
subject: monastic life
subject: allegory
subject: philosophical tale
subject: philosophical fiction
subject: fiction
subject: destiny
subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: Humanities
subject: FOS: Humanities

description: The island of Tyflonia (from the Greek tyflos, meaning “blind”) is a place of internment for The Lost. Who are they? People who experience vision loss — slow, progressive, inevitable. The cause of vision damage is mysterious. The island has no hospital or sanatorium, only barracks for the dying. Tyflonia is a penal colony. The Lost are supposed to be there. Forever. What do these people do, how do they respond, what do they occupy themselves with? After the initial shock of isolation, being thrown out of the “normal world,” they try to live. And this is what is fascinating in this magical story; how people in the abnormal conditions of forced isolation, limited by poor vision or blindness, how they try to create an almost normal world for themselves. Some seek salvation in friendship, love, and helping others. They arrange a home, make love, have children, help and support others (or not). Some do not succeed. And yet the point is to persevere, to endure, and endure. Original manuscript (in Polish) is located at POLONA, the National Library of Poland, the National Repository of Manuscripts: https://katalogi.bn.org.pl/permalink/48OMNIS_NLOP/1aot9i7/alma991021421809705066
description: Written by Halina Bortnowska. Translated by Theodosia Robertson. A philosophical tale about characters afflicted by a mysterious blindness (called “The Loss”). Exiled to a remote northern island, some of the exiles form a community to help one another; most, however, give up and slowly die. After a wave of religious fervor, the community recommits to survival, striving moment by moment — to endure.
Resonance in pressurized piping systems
Creators: name: Chaudhry, Mohammad Hanif
Publisher: name: University of British Columbia
Year: 2011

description: A new approach, based on the transfer matrix method used in the theory of vibrations, is presented to analyze the steady-oscillatory flows, and to determine the resonating characteristics of piping systems. By linearizing the friction loss term, considering the system as distributed and assuming the discharge and pressure head fluctuations as sinusoidal, field matrices for a simple pipeline and for a parallel system are derived. A numerical technique is presented to determine the field matrix for a pipe having variable characteristics along its length. Point matrices for orifices, and for oscillating valves are obtained by linearizing the gate equation. Point matrices for the junction of the main and a branch having various boundary conditions, e.g., dead end, reservoir, orifice, oscillating valve, are also derived. A numerical procedure is outlined for computing the resonant frequencies of piping systems. Expressions are developed to determine the frequency response of systems having periodic forcing functions, such as fluctuating pressure head; fluctuating discharge; and oscillating valve. A number of systems commonly used in waterpower development and water supply schemes are analyzed. The results obtained by the method presented herein are in close agreement with those obtained experimentally by earlier investigators; or determined by using the method of characteristics, impedance theory, or energy concepts.
Out-of-plane impurities induced the deviation from the monotonic d-wave superconducting gap in cuprate superconductors
Creators: name: Wang, Zhi
name: Feng, Shiping
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The electronic structure of cuprate superconductors is studied within the kinetic energy driven superconducting mechanism in the presence of the out-of-plane impurities. With increasing the impurity concentration, although both superconducting coherence peaks around nodal and antinodal regions are suppressed, the position of the leading-edge mid-point of the electron spectrum around the nodal region remains at the same position, while it is shifted towards higher binding energies around the antinodal region, this leads to a strong deviation from the monotonic d-wave superconducting gap in the out-of-plane impurity-controlled cuprate superconductors.
description: 8 pages, 3 figures, added discussions and updated references, accepted for publication in Phys. Rev. B
One-loop derivation of the Wilson polygon - MHV amplitude duality
Creators: name: Gorsky, A.
name: Zhiboedov, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the origin of the Wilson polygon - MHV amplitude duality at the perturbative level. It is shown that the duality for the MHV amplitudes at one-loop level can be proven upon the peculiar change of variables in Feynman parametrization and the use of the relation between Feynman integrals at the different space-time dimensions. Some generalization of the duality which implies the insertion of the particular vertex operator at the Wilson triangle is found for the 3-point function. We discuss analytical structure of Wilson loop diagrams and present the corresponding Landau equations. The geometrical interpretation of the loop diagram in terms of the hyperbolic geometry is discussed.
description: 29 pages
Simultaneous State and Parameter Estimation for Physics-Based Tracking of Heart Surface Motion
Creators: name: Bogatyrenko, Evgeniya
name: Hanebeck, Uwe D.
Publisher: name: Karlsruhe
Year: 2010

description: Most existing approaches for tracking of the beating heart motion assume known cardiac kinematics and material parameters. However, these assumptions are not realistic for application in beating heart surgery. In this paper, a novel probabilistic tracking approach based on a physical model of the heart surface is presented. In contrast to existing approaches, the physical information about heart kinematics and material properties is incorporated and considered in an estimation of the heart behavior. An additional advantage is that the time-dependencies and uncertainties of the heart parameters are efficiently handled by exploiting simultaneous state and parameter estimation. Furthermore, by decomposing the state into linear and nonlinear substructures, the computational complexity of the estimation problem is reduced. The experimental results demonstrate the high performance of the method proposed in this paper. The solution of the parameter identification problem allows a personalized physical model and opens up possibilities to apply the physics-based tracking of the heart surface motion in a clinical environment.
Multivariate Parametric Density Estimation Based On The Modified Cramér-von Mises Distance
Creators: name: Krauthausen, Peter
name: Eberhardt, Henning
name: Hanebeck, Uwe D.
Publisher: name: Karlsruhe
Year: 2010

description: In this paper, a novel distance-based density estimation method is proposed, which considers the overall density function in the goodness-of-fit. In detail, the parameters of Gaussian mixture densities are estimated from samples, based on the distance of the cumulative distributions over the entire state space. Due to the ambiguous definition of the standard multivariate cumulative distribution, the Localized Cumulative Distribution and a modified Cram\'{e}r-von Mises distance measure are employed. A further contribution is the derivation of a simple-to-implement optimization procedure for the optimization problem. The proposed approach's good performance in estimating arbitrary Gaussian mixture densities is shown in an experimental comparison to the Expectation Maximization algorithm for Gaussian mixture densities.
Indenture, Between Jonathan Edwards and his Father, Thomas Edwards, March 19, 1770
Creators: name: Edwards, Jonathan
name: Edwards, Thomas
Publisher: name: Unknown
Year: 1770
Subjects: Edwards Family
Contracts
Debt

description: This indenture is between Jonathan Edwards and his father, Thomas Edwards, dated for March 19, 1770. This item is part of the Isaac Edwards Deed Collection, donated by Bess Rattray in December 2020.
Additional file 1 of Comprehensive transcriptomic and proteomic analyses identify intracellular targets for myriocin to induce Fusarium oxysporum f. sp. niveum cell death
Creators: name: Wang, Hengxu
name: Wang, Zhigang
name: Xu, Weihui
name: Wang, Kexin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Number (a) and venn diagram (b) of DEGs in CK_VS_MIC and CK_VS_8MIC. Figure S2. Distribution of the network center coefficient. Figure S3. Validation of RNA-seq data using RT-qPCR (FOXG_09470 and FOXG_08276). Figure S4. Validation of RNA-seq data using RT-qPCR (FOXG_03084, FOXG_03472, FOXG_09570, FOXG_21153 and FOXG_03836).
Reflexive state awareness within mobile robots through sensor fusion and qualitative reasoning
Creators: name: Weas, Abram Damon
Publisher: name: The University of Texas at Austin
Year: 2004
Subjects: Reflexive Sensor Fusion System
Q-State
Mobile robots

description: The overall goal of the project described in this thesis is to discover and implement a methodology that provides the groundwork for robotic systems to comprehend large amounts of sensory data in real-time (i.e. reflexive state awareness), termed a Reflexive Sensor Fusion System (RSFS). This is done by creating a new form of qualitative description of its state, termed a “Q-State.” The goals of this paper are to: Verify the usability of the pattern classification techniques by testing multidegree-of-freedom, simple dynamic systems within the software test-bed. Develop an overall methodology for the implementation of physical test-beds. Within this thesis, these goals were accomplished by implementing a software test-bed testing the ability of pattern classification methods, including Bayesian classification and Nearest Neighbor Rule, and two dimensional reduction methods: Principle Component Analysis and Multiple Discriminate Analysis, to correctly recognize the Q-States defined for a simulated bicycle and rider and a mobile robot modeled after the Mars Pathfinder, Sojourner. Finally, the results showing high classification rates are discussed along with suggestions to move forward with physical implementation
Enhancing hyperspectral image unmixing with spatial correlations
Creators: name: Eches, Olivier
name: Dobigeon, Nicolas
name: Tourneret, Jean-Yves
Publisher: name: arXiv
Year: 2010
Subjects: subject: Methodology (stat.ME)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: This paper describes a new algorithm for hyperspectral image unmixing. Most of the unmixing algorithms proposed in the literature do not take into account the possible spatial correlations between the pixels. In this work, a Bayesian model is introduced to exploit these correlations. The image to be unmixed is assumed to be partitioned into regions (or classes) where the statistical properties of the abundance coefficients are homogeneous. A Markov random field is then proposed to model the spatial dependency of the pixels within any class. Conditionally upon a given class, each pixel is modeled by using the classical linear mixing model with additive white Gaussian noise. This strategy is investigated the well known linear mixing model. For this model, the posterior distributions of the unknown parameters and hyperparameters allow ones to infer the parameters of interest. These parameters include the abundances for each pixel, the means and variances of the abundances for each class, as well as a classification map indicating the classes of all pixels in the image. To overcome the complexity of the posterior distribution of interest, we consider Markov chain Monte Carlo methods that generate samples distributed according to the posterior of interest. The generated samples are then used for parameter and hyperparameter estimation. The accuracy of the proposed algorithms is illustrated on synthetic and real data.
description: Manuscript accepted for publication in IEEE Trans. Geoscience and Remote Sensing
Plate bending analysis with isosceles trapezoidal bar cells
Creators: name: Ha, Huy Kinh
Publisher: name: University of British Columbia
Year: 2011

description: A bar cell in the shape of an isosceles trapezoid is devised for use in flexure problems of circular plates. The cell members are endowed with elastic properties such that it deforms in the same manner as a piece of plate in condition of arbitrary uniform bending about any axis in the plane of a plate. The stiffness matrix of the cell is derived explicitly. Two methods of computation of stresses are described, one by the nodal forces and the other by the nodal displacements. The validity of the cell is tested on two examples whose exact solutions are known. One involves a semicircular clamped plate under uniform load, and the other a simply-supported circular plate under an eccentric concentrated load. The results compared favourably with the theory of elasticity solutions and the no-bar finite element solutions. Good trend of convergence of solutions is indicated on reduction of the element size.
A Spatial Model of Tumor-Host Interaction: Application of Chemotherapy
Creators: name: Hinow, Peter
name: Gerlee, Philip
name: McCawley, Lisa J.
name: Quaranta, Vito
name: Ciobanu, Madalina
name: Wang, Shizhen
name: Graham, Jason M.
name: Ayati, Bruce P.
name: Claridge, Jonathan
name: Swanson, Kristin R.
name: Loveless, Mary
name: Anderson, Alexander R. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: In this paper we consider chemotherapy in a spatial model of tumor growth. The model, which is of reaction-diffusion type, takes into account the complex interactions between the tumor and surrounding stromal cells by including densities of endothelial cells and the extra-cellular matrix. When no treatment is applied the model reproduces the typical dynamics of early tumor growth. The initially avascular tumor reaches a diffusion limited size of the order of millimeters and initiates angiogenesis through the release of vascular endothelial growth factor (VEGF) secreted by hypoxic cells in the core of the tumor. This stimulates endothelial cells to migrate towards the tumor and establishes a nutrient supply sufficient for sustained invasion. To this model we apply cytostatic treatment in the form of a VEGF-inhibitor, which reduces the proliferation and chemotaxis of endothelial cells. This treatment has the capability to reduce tumor mass, but more importantly, we were able to determine that inhibition of endothelial cell proliferation is the more important of the two cellular functions targeted by the drug. Further, we considered the application of a cytotoxic drug that targets proliferating tumor cells. The drug was treated as a diffusible substance entering the tissue from the blood vessels. Our results show that depending on the characteristics of the drug it can either reduce the tumor mass significantly or in fact accelerate the growth rate of the tumor. This result seems to be due to complicated interplay between the stromal and tumor cell types and highlights the importance of considering chemotherapy in a spatial context.
description: revised version, 25 pages, 9 figures, minor misprints corrected
No Museum is an Island
Creators: name: Macdonald, Sharon
name: Gerbich, Christine
name: Von Oswald, Margareta
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: ethnography
subject: museum
subject: methodology
subject: organization
subject: organigram
subject: Berlin
subject: 301 Soziologie, Anthropologie
subject: 069 Museumswissenschaft

description: This article addresses the question of how to go beyond the conceptualisation of museums as islands in museum ethnography without losing the ethnographic depth and insights that such research can provide. Discussing existing ethnographic research in museums, the ethnographic turn in organization studies, and methodological innovation that seeks to go beyond bounded locations in anthropology, we offer a new museum methodology that retains ethnography’s capacity to grasp the often overlooked workings of organizational life – such as the informal relations, uncodified activities, chance events and feelings – while also avoiding ‘methodological containerism’, that is, the taking of the museum as an organization for granted. We then present a project design for a multi-sited, multi-linked, multi-researcher ethnography to respond to this; together with its specific realisation as the Making Differences project currently underway on Berlin’s Museum Island. Drawing on three sub-projects of this large ethnography – concerned with exhibition-making in the Museum of Islamic Art, in the Ethnological Museum in preparation for the Humboldt Forum (a high profile and contested cultural development due to open in 2019) and a new exhibition about Berlin, also for the Humboldt Forum – we highlight the importance of what happens beyond the ‘container,’ the discretion of what we even take to be the ‘container’, and how ‘organization-ness’ of various kinds is ‘done’ or ‘achieved’. We do this in part through an analysis of organigrams at play in our research fields, showing what these variously reveal, hide and suggest. Understanding museums, and organizations more generally, in this way, we argue, brings insight both to some of the specific developments that we are analysing as well as to museum and organization studies more widely.
Assessing Compliance of Inputs in Organic Agriculture
Creators: name: van den Berge, Paul
name: Richter, Toralf
name: Kadzere, Irene
name: Speiser, Bernhard
Publisher: name: Zenodo
Year: 2024
Subjects: organic farming
certification
pesticide
fertiliser
seeds
propagation material
regulation
assessment
procedure

description: This User Guide shall help certification bodies, private label organisations and other key stakeholders to assess whether a specific input can be used in organic agriculture or not. It explains in a step by step procedure how substances and products can be evaluated on their conformity with regulatory frameworks on organic agriculture in the country of production or in the country to which the agricultural produce shall be exported.
Dirichlet-Ford Domains and Arithmetic Reflection Groups
Creators: name: Lakeland, Grant S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 30F35

description: In this paper, it is shown that a Fuchsian group, acting on the upper half-plane model for $\mathbb{H}^2$, admits a Ford domain which is also a Dirichlet domain, for some center, if and only if it is an index 2 subgroup of a reflection group. This is used to exhibit an example of a maximal arithmetic hyperbolic reflection group which is not congruence. Analogous results, and counterexamples, are given in the case of Kleinian groups.
description: 15 pages, 4 figures. One new section added from previous version
Advice on time-temperature Indicators on food products
Creators: name: Product Safety Authority, Office for Risk Assessment and ResearNetherlands Food and Consumer ch
Publisher: name: Zenodo
Year: 2021
Subjects: subject: Time-temperature indicator
subject: Food Safety
subject: http://id.agrisemantics.org/gacs/C1146
subject: http://id.agrisemantics.org/gacs/C4525
subject: http://id.agrisemantics.org/gacs/C105

description: One of the goals of the Ministry of Agriculture, Nature and Food Quality (LNV) is to achieve a halving of food waste by 2030 compared to the situation in 2015. One of the possibilities that LNV is exploring is the use of a time-temperature indicator (TTI) on food products. A TTI could be more reliable than using a labeled date that applies to an entire batch. A Dutch supermarket chain has submitted an application to investigate, through a field trial, whether TTIs can be used in the Netherlands for the perishable foods 'fresh chicken meat' and 'fresh fish or fresh fish fillet'. The supermarket is cooperating with a university in this regard. For this practical trial, a temporary exemption is needed from the Minister for Medical Care and Sport (MZS). The Ministry of Health, Welfare and Sport (VWS) has asked the Office for Risk Assessment & Research (BuRO) for a risk assessment to substantiate the exemption.
description: NL; PDF; NVWAEFSAFocalPoint@nvwa.nl
Gravitational waves in the Hyperspace?
Creators: name: Corda, Christian
name: Fontana, Giorgio
name: Cuadrado, Gloria Garcia
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the framework of the debate on high-frequency gravitational waves (GWs), after a review of GWs in standard General Relativity, which is due for completness, the possibility of merging such a traditional analysis with the Hyperspace formalism that has been recently introduced in some papers in the literature, with the goal of a better understanding of manifolds dimensionality also in a cosmological framework, is discussed. Using the concept of refractive index in the Hyperspace, spherical solutions are given and the propagation of GWs in a region of the Hyperspace with an unitary refractive index is also discussed. Propagation phenomena associated to the higher dimensionality are proposed, possibly including non-linear effects. Further and accurate studies in this direction are needed.
description: Accepted for publication by Modern Physics Letters A. In the new version the references have been updated
Suburbanites engaged: perspectives of civic engagement in a multi-ethnic community
Creators: name: Robinson-Wyatt, Edrice
Publisher: name: No Publisher Supplied
Year: 2023

description: Civic engagement motivations and actions are instrumental to society from the local level to the world at large. With a minimal body of civic engagement work within the last decade focused on American suburbs from a resident’s perspective, this study has contributed to that discourse. My observations of community challenged the narratives that suburbanites are less civically engaged and that traditionally White people were more civically engaged than other races. This study offered a new understanding of engagement modes and locations resulting from the impacts of an increasing population of racial/ethnic minorities in suburbia. The research design focused on an evaluation of civic engagers’ motivations to engage, modes of engagement and their intended benefit within the local community. Twenty-seven adults from one, multi-ethnic New Jersey suburban community participated in semi-structured interviews and completed a questionnaire about their engagement experiences. Findings suggested the motivation to engage can 1) begin at an early age, 2) be the result of feelings of marginalization, and 3) satisfy the need to address important issues. Engagers were involved in multiple activities, and life course events played an important role in choosing the type of activities they participated in. Most engagers were involved in group associations, feeling that they offered an opportunity to have a larger impact on the communities they served. The impact of race/ethnicity on civic engagement decisions mattered and cultural diversity beyond race/ethnicity or age was valued. Finally, there was no significant finding that the age of the engager was a factor in engagement decisions. Though the civic engagement journey is unique, engagers were connected by their desire to impact people and where they live. This study also identified concepts that push this conversation forward with a consideration of civic engagement opportunities that shape a community’s identity and future.
Regularized Non-Parametric Multivariate Density and Conditional Density Estimation
Creators: name: Krauthausen, Peter
name: Hanebeck, Uwe D.
Publisher: name: Karlsruhe
Year: 2010

description: In this paper, a distance-based method for both multivariate non-parametric density and conditional density estimation is proposed. The contributions are the formulation of both density estimation problems as weight optimization problems for Gaussian mixtures centered about samples with identical parameters. Furthermore, the minimization is based on the modified Cram\'{e}r-von Mises distance of the Localized Cumulative Distributions, removing the ambiguity of the defi- nition of the multivariate cumulative distribution function. The minimization problem is amended with a regularization term penalizing the densities' roughness to avoid overfitting. The resulting estimation problems for both densities and conditional densities are shown to be phrasable in the form of readily implementable quadratic programs. Experimental comparison against EM, SVR, and GPR based on the log-likelihood and performance in benchmark recursive filtering applications show high quality of the densities and good performance at less computational cost, i.e., the density representations are sparser.
Constitutional Authority and Judicial Review: A Common Law Theory of Ultra Vires
Creators: name: Allen, JG
Publisher: name: University Of Tasmania
Year: 2023
Subjects: Legal theory, jurisprudence and legal interpretation
Constitutional law

description: What justifies the High Court’s power to review exercises of the non-statutory powers of government officials? The conventional answer would run that the Court acts as a kind of agent for Parliament; as Parliament is sovereign in the British constitutional order, all powers and their limits derive from parliamentary intention. This proposition, however, has been the subject of intense disagreement among British public lawyers in the context of powers held by non-statutory bodies. The ‘ultra vires debate’ pitted this traditional view against a powerful critique that the courts impose common law ‘principles of good administration’ on all repositories of administrative power, independently of Parliament. The debate ultimately burned itself out; a kind of consensus by default emerged around a modified version of the ultra vires theory. The non-statutory powers of the Crown reignite the debate in a new and more challenging context. This is particularly the case for the so-called ‘third source’ of governmental authority—a set of powers or capacities said to inure in the Crown in virtue of the Crown’s legal personality. The Crown is an arcane legal figure, frequently misunderstood. Rather than shying away from the ‘clanking of medieval chains’, however, we must explain it. This begins with a basic analysis of institutions and the powers they wield. Applying the concept of ‘institutional facts’ drawn from John Searle’s social ontology and Neil MacCormick’s institutional theory of law, this thesis builds a model of constitutional authority that can be used to answer the question posed above. The result is a greater emphasis on the concept of office and official powers, which suggests a vires-based account of judicial review. This differs from traditional explanations of the supervisory jurisdiction, however, in several respects. First, it is based on a fundamental account of constitutional authority, which our unwritten constitution entails a contingent relationship only with legislative intention. Secondly, for this reason, ultra vires review applies to the Crown’s non-statutory powers. Thirdly, when applied to Parliament, the model of authority it rests on entails that Parliament has limited vires which may, in appropriate cases, be amenable to judicial control.
Robust Model Predictive Control with Least Favorable Measurements
Creators: name: Lyons, Daniel
name: Hekler, Achim
name: Kuderer, Markus
name: Hanebeck, Uwe D.
Publisher: name: Karlsruhe
Year: 2010

description: Closed-loop model predictive control of nonlinear systems, whose internal states are not completely accessible, incorporates the impact of possible future measurements into the planning process. When planning ahead in time, those measurements are not known, so the closed-loop controller accounts for the expected impact of all potential measurements. We propose a novel conservative closed-loop control approach that does not calculate the expected impact of all measurements, but solely considers the single future measurement that has the worst impact on the control objective. In doing so, the model predictive controller guarantees robustness even in the face of high disturbances acting upon the system. Moreover, by considering only a single dedicated measurement, the complexity of closed-loop control is reduced significantly. The capabilities of our approach are evaluated by means of a path planning problem for a mobile robot.
Xampling: Signal Acquisition and Processing in Union of Subspaces
Creators: name: Mishali, Moshe
name: Eldar, Yonina C.
name: Elron, Asaf
Publisher: name: arXiv
Year: 2009
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We introduce Xampling, a unified framework for signal acquisition and processing of signals in a union of subspaces. The main functions of this framework are two. Analog compression that narrows down the input bandwidth prior to sampling with commercial devices. A nonlinear algorithm then detects the input subspace prior to conventional signal processing. A representative union model of spectrally-sparse signals serves as a test-case to study these Xampling functions. We adopt three metrics for the choice of analog compression: robustness to model mismatch, required hardware accuracy and software complexities. We conduct a comprehensive comparison between two sub-Nyquist acquisition strategies for spectrally-sparse signals, the random demodulator and the modulated wideband converter (MWC), in terms of these metrics and draw operative conclusions regarding the choice of analog compression. We then address lowrate signal processing and develop an algorithm for that purpose that enables convenient signal processing at sub-Nyquist rates from samples obtained by the MWC. We conclude by showing that a variety of other sampling approaches for different union classes fit nicely into our framework.
description: 16 pages, 9 figures, submitted to IEEE for possible publication
More non-Abelian loop Toda solitons
Creators: name: Nirov, Kh. S.
name: Razumov, A. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 37K10; 37K15; 35Q58

description: We find new solutions, including soliton-like ones, for a special case of non-Abelian loop Toda equations associated with complex general linear groups. We use the method of rational dressing based on an appropriate block-matrix representation suggested by the Z-gradation under consideration. We present solutions in a form of a direct matrix generalization of the Hirota's soliton solution already well-known for the case of Abelian loop Toda systems.
description: 13 pages, introduction, concluding remarks and bibliography extended, version to appear in J. Phys. A: Math. Theor
Elimination of IR/UV via Gravity in Noncommutative Field Theory
Creators: name: Kersting, N.
name: Yan, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Models of particle physics with Noncommutative Geometry (NCG) generally suffer from a manifestly non-Wilsonian coupling of infrared and ultraviolet degrees of freedom known as the "IR/UV Problem" which would tend to compromise their phenomenological relevance. In this Letter we explicitly show how one may remedy this by coupling NCG to gravity. In the simplest scenario the Lagrangian gets multiplied by a nonconstant background metric; in $ϕ-4$ theory the theorem that $\int d^4 x ϕ\star ϕ= \int d^4 x ϕ^2$ is no longer true and the field propagator gets modified by a factor which depends on both NCG and the variation of the metric. A suitable limit of this factor as the propagating momentum gets asymptotically large then eradicates the IR/UV problem. With gravity and NCG coupled to each other, one might expect anti-symmetric components to arise in the metric. Cosmological implications of such are subsequently discussed.
description: 6 pages; MPLA version
Nonlinear Model Predictive Control Considering Stochastic and Systematic Uncertainties with Sets of Densities
Creators: name: Hekler, Achim
name: Lyons, Daniel
name: Noack, Benjamin
name: Hanebeck, Uwe D.
Publisher: name: Karlsruhe
Year: 2010

description: In Model Predictive Control, the quality of control is highly dependent upon the model of the system under control. Therefore, a precise deterministic model is desirable. However, in real-world applications, modeling accuracy is typically limited and systems are generally affected by disturbances. Hence, it is important to systematically consider these uncertainties and to model them correctly. In this paper, we present a novel Nonlinear Model Predictive Control method for systems affected by two different types of perturbations that are modeled as being either stochastic or unknown but bounded quantities. We derive a formal generalization of the Nonlinear Model Predictive Control principle for considering both types of uncertainties simultaneously, which is achieved by using sets of probability densities. In doing so, a more robust and reliable control is obtained. The capabilities and benefits of our approach are demonstrated in real-world experiments with miniature walking robots.
Wikipédia como REA no Ensino Superior: um caminho da utopia à realidade
Creators: name: Cardoso, Teresa
name: Pestana, Filomena
Publisher: name: Internet Latent Corpus Journal
Year: 2020

description: O estudo sustenta a primeira implementação em Portugal do Programa Wikipédia na Universidade, correspondendo nomeadamente à fase de diagnóstico, e pretende compreender como professores e estudantes do Ensino Superior Português percebem e usam a Wikipédia em contextos educacionais. Metodologicamente optou-se por uma abordagem mista e foram desenvolvidos dois questionários, disponibilizados online. Foi possível concluir que professores e estudantes acedem e têm uma conceção positiva relativamente à Wikipédia. No entanto, ainda é raro seu uso em práticas educacionais. Os alunos o adotam para trabalhos académicos e não académicos, e os professores o utilizam para pesquisa de informação não académica. Quanto à sua credibilidade, para os estudantes é fácil presumir a correção dos artigos na Wikipédia; por parte dos professores, há alguma reserva. Em suma, embora as conceções e práticas de professores e estudantes sejam favoráveis à Wikipédia, será necessária mais formação para que possa ser integrada de modo consistente no ensino superior.
description: Internet Latent Corpus Journal, vol. 9 n.º 1 (2019)
Procavia capensis
Creators: name: Aidek, Ahmad E.
name: Ibrahim, Amir
name: Amr, Zuhair
name: Hutterer, Rainer
name: Kryštufek, Boris
name: Serra, Gianluca
name: Benda, Petr
name: Shkaky, Yesra
name: Barbanera, Filippo
name: Al-Sheikhly, Omar F.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Hyracoidea
Procaviidae
Procavia
Procavia capensis

description: 1. Rock Hyrax, Procavia capensis (Pallas, 1766)
(IUCN Red List: LC)
Subspecies: P. c. syriaca (Schreber, 1784).
Distribution: Rare; restricted to the rocky mountains of ar-Ruqad Valley (Shehab 2002) and Yarmuk Valley (Serra 2008). (Fig. 4)
Remarks: The Rock Hyrax is the only representative of the order Hyracoidea in the Middle East. This is an African species that extended its range along the Jordan Valley reaching as far as southern Lebanon and the Yarmouk River Basin (Rifai et al. 2000). Kumerloeve (1975) did not list P. capensis among the mammals of Syria, but an observation was recorded in the southwest of Golan close to Lake Tiberias in 1990 by M. Kasparek (Rifai et al. 2000).
description: Published as part of Aidek, Ahmad E., Ibrahim, Amir, Amr, Zuhair, Hutterer, Rainer, Kryštufek, Boris, Serra, Gianluca, Benda, Petr, Shkaky, Yesra, Barbanera, Filippo & Al-Sheikhly, Omar F., 2025, Checklist of Mammals of Syria, pp. 1-130 in Zootaxa 5580 (1) on page 25, DOI: 10.11646/zootaxa.5580.1.1, http://zenodo.org/record/14797597
Massive black hole binary evolution in gas-rich mergers
Creators: name: Colpi, M.
name: Callegari, S.
name: Dotti, M.
name: Mayer, L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report on key studies on the dynamics of black holes (BHs) in gas-rich galaxy mergers that underscore the vital role played by gas dissipation in promoting BH inspiral down to the smallest scales ever probed with use of high-resolution numerical simulations. In major mergers, the BHs sink rapidly under the action of gas-dynamical friction while orbiting inside the massive nuclear disc resulting from the merger. The BHs then bind and form a Keplerian binary on a scale of 5 pc. In minor mergers, BH pairing proceeds down to the minimum scale explored of 10-100 pc only when the gas fraction in the less massive galaxy is comparatively large to avoid its tidal and/or ram pressure disruption and the wandering of the light BH in the periphery of the main halo. Binary BHs enter the gravitational wave dominated inspiral only when their relative distance is typically of 0.001 pc. If the gas preserves the degree of dissipation expected in a star-burst environment, binary decay continues down to 0.1 pc, the smallest length-scale ever attained. Stalling versus hardening below 0.1 pc is still matter of deep investigations.
description: 8 pages, 5 figures, to appear in Classical and Quantum Gravity, Lisa-7 Special Issue
Becoming emblematic: lessons from a mediatized megaproject conflict in Chile
Creators: name: Mocatta, Marie-Gabrielle
Publisher: name: University Of Tasmania
Year: 2023
Subjects: Communication studies
Media studies

description: The construction of megaprojects – large, landscape transforming infrastructure projects – is booming. Megaprojects are becoming more immense and more environmentally damaging. Requiring vast, often transnational investment, megaprojects have escaped the boundaries of the nation state, and are often enacted in transnational contexts. Research has shown that megaprojects almost always rely on a combination of overstated benefits and underestimated environmental impacts in order to be approved, attract investment, and be built. Megaprojects therefore typically rely on highly targeted strategic communications and attempts to steer public discourse, in order to emphasize their advantages and downplay risks. This leads to accusations that they are insufficiently transparent, even deceptive. However, in a hyper-connected world, megaprojects and their risks are now more visible than ever, and are increasingly contested in local, national and global public arenas. Megaprojects are constructed in discourse both by project developers and their supporters, and by protest groups, as well as through their representation in the media. During the protracted communicational sparring that often accompanies them, megaprojects can become conferred with symbolic meaning. This case study reveals the mediatized construction of a Chilean energy megaproject over eleven years from the project’s inception, to its final dissolution. The proposed HidroAysén hydroelectric scheme for Patagonia was at first a largely invisible project, unknown outside the potentially affected region, until protest made the project visible. Presented by the developing company and by authorities as a nation building project to bring Chile energy independence, over time it garnered such vehement opposition that it sparked the largest protests that Chile had seen since its return to democracy. By analysing discourse in influential print and social media during the debate, using interviews with key actors, and strategic communications material from both sides, this study traces the discourse over the megaproject through several key stages. It shows what the symbolic communication of HidroAysén led the megaproject to represent, arguing that when a megaproject becomes layered with multiple symbolic meanings over time, it can become emblematic: a situation which is hard to shift. Though this study focuses on the case of one megaproject in Chile – and indeed shows how the nation was changed by the HidroAysén debate – it also draws wider lessons from the emblematic case of HidroAysén, enabling a better understanding of the communicational unfolding of transnational megaprojects, and the frequently transnational protests that oppose them.
A Novel Bayesian Method for Fitting a Circle to Noisy Points
Creators: name: Baum, Marcus
name: Klumpp, Vesa
name: Hanebeck, Uwe D.
Publisher: name: Karlsruhe
Year: 2010

description: This paper introduces a novel recursive Bayesian estimator for the center and radius of a circle based on noisy points. Each given point is assumed to be a noisy measurement of an unknown true point on the circle that is corrupted with known isotropic Gaussian noise. In contrast to existing approaches, the novel method does not make assumptions about the true points on the circle, where the measurements stem from. Closed-form expressions for the measurement update step are derived. Simulations show that the novel method outperforms standard Bayesian approaches for circle fitting.
Precast concrete load bearing wall panels
Creators: name: Chandwani, Ramesh Hassanand
Publisher: name: University of British Columbia
Year: 2011

description: The object of this thesis is twinfold. Firstly, to study and check the effective width requirements recommended by different committees¹ for the design of ribbed precast concrete load bearing walls. Secondly, to rationalize the practice of the designing of the precast prefabricated components of any general polygonal shape. The recommendations regarding the minimum thickness of a thin wall, the effective width, etc., have been specified for some cases in code books and other tentative specification books², in the form of rules of thumb. In these rules of thumb, several parameters which may be of significance, such as dimensions of the rib itself, are not taken into account. A finite element approach has been adopted to investigate various combinations of these parameters, as well as the effects of different boundary conditions. Similar problems arise also in the cases of T-beams, L-beams and design of aircraft structures, in which a stressed skin is mounted on ribs, which are assembled in the form of a space frame. So far interaction curves have been made available in some design books only for the prestressed concrete member having rectangular cross-sections and for any other shape, approximations are made, such as making a rectangular section having an equivalent area or having the same moment of inertia or section modulii, etc. But this practice seems very irrational especially in the case of precast components which are always produced in a factory on a mass scale. A computer program has been written which can give the interaction curve for the member of any polygonal shape. 1. DRAFT 3: Of PCI Committee, 'Recommendations for Prestressed Bearing Wall Design.' 2. 'Symposium on Precast Concrete Wall Panels.' Publications ACI, SP-11, Second Printing 1966, pp. 39-44.
MPEC 2023-K154 : 2023 KC3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 KC3

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
The Development of an Instrument to Evaluate Nursing Assistants’ Knowledge, Skills and Attitudes within a Palliative Approach
Creators: name: Karacsony, Sara
Publisher: name: University Of Tasmania
Year: 2023
Subjects: Aged care nursing

description: Older people entering Residential Aged Care Facilities (RACF) have complex health care needs, with many requiring a palliative approach on admission. The focus of a palliative approach is on managing physical and emotional symptoms to reduce suffering, promote comfort, and enable a peaceful death. Providing this level of care however, requires essential knowledge, skills and attitudes in care processes. ‘Nursing assistant’ is the umbrella term used in this study to describe the largest aged care workforce. At present nursing assistants make up 70% of the RACF workforce, and are increasingly assuming more direct care of residents with limited supervision and support. Determining nursing assistants’ knowledge, skills and attitudes to provide care with a palliative approach is particularly important given their level of involvement in care processes. This study aims to develop a valid and reliable instrument capable of determining the training and development needs of nursing assistants providing a palliative approach in RACFs. The development and testing of the instrument follows recommended psychometric processes and comprises four separate sequential phases, using a mixed methods approach. In Phase 1, items were generated from qualitative interviews with nursing assistants (n=25). In Phase 2, item content was validated with four groups of experts. In Phase 3, three separate questionnaires entitled PANA (Palliative Approach for Nursing Assistants) were pilot tested as a single instrument. In Phase 4, the psychometric properties of the new instrument were evaluated using a random sample of 348 nursing assistants across 17 RACFs in the Greater Sydney region. Individual item properties were analysed for difficulty, discrimination and item-total correlations, reducing the item set to 40. Psychometric testing included translational (face and content) and construct validity. Three separate questionnaires were finalised: the PANA_Knowledge Questionnaire, the PANA_Skills Questionnaire and the PANA_Attitudes Questionnaire. Internal consistency for the instruments ranged from α=0.81 to 0.74. Test-retest reliabilities using the intra-class correlation were in the range of 0.709-0.335 for the three instruments. Five discriminative and divergent hypotheses were made; four were supported. The study’s results show that experience in the role, rather than the level of education, results in higher knowledge and attitude scores across groups of nursing assistants, while their skills largely remain static. What emerges is an identification of the gaps and current educational shortfalls affecting nursing assistants’ competence to deliver care with a palliative approach. The PANA questionnaires demonstrate sensitivity for nursing assistants’ level of education and scope of practice and, as such, are reliable tools by which to identify the educational needs of the largest cohort of the aged care workforce.