cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: A non‐conforming finite element formulation for modeling compressible viscous fluid and flexible solid interaction
Creators: name: Hassanpour Guilvaiee, Hamideh
name: Toth, Florian
name: Kaltenbacher, Manfred
Publisher: name: Wiley
Year: 2022
Subjects: compressible-viscous fluid
finite element method
non-conforming mesh

description: In modeling fluid–solid interaction (FSI), considering the impact of fluid compressibility is necessary to describe sound propagation. Furthermore, in micro-scale, fluid viscosity is important. We present a finite element formulation for modeling a flexible solid coupled to a compressible viscous fluid. We use the linearized Navier–Stokes equations for a Newtonian fluid and describe the linear elastic solid using the linearized balance of momentum. For coupling between fluid and solid, we develop a non-conforming finite element formulation, and propose an estimation for the necessary penalty factor by applying a scaling approach. The formulation is validated based on several test cases for various material combinations and shows good agreement with analytical solutions. Further, Nitsche-based and symmetrization-free formulations are compared, and spatial convergence is studied. Finally, we present an application example of a miniature Helmholtz resonator, which depicts a notable impact of the solid interaction on the viscous flow. In sum, our study indicates the potential for widespread use of the presented numerical approach in modeling FSI in miniature systems.
The p-Laplace heat equation with a source term : self-similar solutions revisited
Creators: name: Bidaut-Véron, Marie-Françoise
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K60;35K65

description: We study the self-similar solutions of any sign of the equation u_{t}-div(|∇u|^{p-2}∇u)=|u|^{q-1}u, in R^{N}, where p,q>1. We extend the results of Haraux-Weissler obtained for p=2 to the case q>p-1>0. In particular we study the existence of slow or fast decaying solutions. For given t>0, the fast solutions u(t,.) have a compact support in R^{N} when p>2, and |x|^{p/(2-p)}u(t,x) is bounded at infinity when p<2. We describe the behaviour for large |x| of all the solutions. According to the position of q with respect to the first critical exponent p-1+p/N and the critical Sobolev exponent q^{∗}, we study the existence of positive solutions, or the number of the zeros of u(t,.). We prove that any solution u(t,.) is oscillatory when p<2 and q is closed to 1.
Magnesium and Zinc Hydride complexes of Zirconium
Creators: name: Butler, Michael James
Publisher: name: Imperial College London
Year: 2017

description: Interest in heterobimetallic complexes stems from the promise they hold as precursors to materials, reagents in synthesis, and as new catalysts. The thesis begins by presenting the TM-H-M linkage(TM = transition metal; M = Mg, Zn, Al, Ga) and organising the full catalogue of examples for its developed understanding. The /3-diketi minate/(trihydrido)zirconocene complexes of Mg and Zn (0 Mg•Zr and 0 Zn•Zr )are reported, creating a Mg, Zn, Al series. The Zr-H-Zn linkageis hitherto unknown, and Zr­ H-Mg has not been reported without support from alkyne or alkene bridging ligands. The new complexes show very little evidence of bridge cleavage to form the mononuclear complexes under 363 K. Such dissociation is facile in the aluminium system (MAl•Zr ) down to 193 K. The bridging unit is probed further using 1H NMR spectroscopy and OFT calculations: a 'cog' mechanism is established for the chemical exchange process between terminal and bridging hydride in both the Mg and Zn analogues. This exchange, and M11/Zr d issociat ion, are found to be easier with 0 Zn•Zr. The reactivity differences in the M/Zr series are investigated with regards to alkene isomerisation. In the case of tightly-bound0 Mg•Zr (and the easily dissociatingMAl•Zr ), on ly the catalytic isomerisation of cycloocta-1,5-diene to cycloocta-1,3-diene is effected. However, the slightly weaker-bound 0 Zn•Zr reacts with either cyclooctadiene to give a new Zr-H-Zn complex that includes a bridging cyclooctyne ligand. It is proposed that 0 Zn•Zr has the ability to dissociateto give a spectator Zn hydride fragment and the Zr centre that is active for the on­ metal isomerisation, before later recombination. Tightly-bound 0 Mg•Zr gives the (E)-selective isomerisation of terminal alkenes to internal positions with a high ratio of alkene:alkane products across a number of substrates - MAl•Zr gives larger amounts of alkane by-products, and 0 Zn•Zr is not an active catalyst.
INTRODUCTION OF PREMIXES INTO THE DIET OF BUFFALOES
Creators: name: ALIYEV M. M
name: MAMEDOVA G.R
name: BAYRAMOVA H. H
name: IBRAGIMOVA L. R
name: ORUJEVA N.K
Publisher: name: Zenodo
Year: 2023
Subjects: Buffalo, Premix, Milk, Rumen Digestion, Milk Research.

description: Abstract

The most acute problem in the structure of livestock production in Azerbaijan at present is increasing the volume of buffalo milk production, the solution of which is related to improving genetic resources and increasing their productive longevity. Conventional feeds are no longer able to cope with the task of meeting the needs of livestock and poultry for the substances necessary for their growth and development. It is premixes – additives of vitamins, minerals, antioxidants and biologically active substances – that allow you to obtain a balanced feed supply. It is thanks to them, that it became possible to solve a number of problems: strengthening the body of animals, increasing their immunity to many diseases, accelerating metabolic processes, and therefore growth, improving the condition and thickness of the coat, a significant increase in productivity, improving the quality and taste of meat, eggs, and milk. The article presents the results of a scientific and economic experiment in which a vitamin-mineral mixture will be used for the first time in buffalo diets. As a result of feeding 100 g of a vitamin-mineral supplement to buffaloes, rumen digestion, as well as the nutritional value of milk, improved. There was also a noticeable increase in daily milk yield. The premix had a positive effect on the general condition of the animals.
Sham–Real Shadows: On Navigating the Anthropocene
Creators: name: Van Den Eÿnden, Trevor
Publisher: name: Emily Carr University of Art and Design
Year: 2015
Subjects: Wallpaper
Design
Light art
Shadow
Sculpture

description: I make intimate scale objects that encourage audience interaction through their mobile devices, or small to larger scale works utilizing phenomenological engagement with projections, or mirrors. My research is focused on the Anthropocene, our current human-influenced global geological epoch born of the Industrial Revolution. It is my hope that my passion for the ideas contained in this subject will have some resonance in the work, while the things I make and the experiences they permit can be understood as meditations, and salves for bleak subject matter. The works discussed herein do not lecture toward my personal thinking around the Anthropocene (we get the planet we make), rather they dire themselves toward suggestions of how nature is presented, understood and utilized in a human-dominated world, and what that does to how we under and our relationship vis-à-vis nature. I believe that these are symptom and source for the problems we currently face and will carry with us into the future. The works discussed in detail are Familiar Strangers, Sham–Real Shadows, and The Relics of the Anthropocene Temple. These works utilize human-made materials sourced from nature such as paper, MDF, light, and plastics, as well as contemporary technology such as lasers (an Anthropocene futuristic form of primitive fire). Frequent research sources, such as naturali wallpaper, are chosen for their presentation of a commodified and rationalized Nature; a shadow of a shadow used as simulacrum to decorate interiors in a human world. The areas of inquiry focus on two streams with the attempt to answer the question, “are there ways to explore the ideological underpinnings and ramifications of the Anthropocene?” These two primary avenues of exploration are: 1) Nature–human dichotomies and ways of designing nature, presenting and thus knowing Nature as simulacrum represented in repetitive patterns and then used to decorate human space; and 2) Hyperobjects as Burkeian, and Kantian sublime presented as patterning of indeterminate space as meditations on, and signi ers of bleakness and hope, light and darkness destabilization and interconnectedness, time and the unknown knowing.These two outcomes are explored in detail with in this document, and have formed the basis of my current practice.
description: In support of the fulfillment of Low-Residency Master of Applied Arts degree in Visual Arts.
description: Anthropocene
description: Pattern
description: Microagression
description: Laser
description: Infinity box
description: Evocative object
title: Development and Characterization of Carbon Supported Palladium-based Anode Catalysts for the Alkaline Direct Ethanol Fuel Cell
Creators: name: Wolf, Sigrid
name: Roschger, Michaela
name: Hacker, Viktor
Publisher: name: TU Wien
Year: 2020
Subjects: Direct ethanol fuel cell
Anode catalysts
Alkaline ethanol oxidation reaction
Rotating disk electrode analysis

description: Direct ethanol fuel cells (DEFC) are limited by the slow kinetics of the ethanol oxidation reaction (EOR) at the anode. In this work, a ternary PdNiBi/C catalyst was synthesized via the modified instant method including a few modifications to investigate the influence on the performance for the alkaline EOR. The catalyst was ex‑situ characterized by means of thin film rotating disk electrode technique using a standard three electrode set-up. The results were compared with a commercial Pd/C catalyst. With the CV measurements, all characteristic reduction and oxidation peaks for Pd, Ni, and Bi as well as for the hydrogen ad/absorption were observed. The PdNiBi/C (636 cm2 mg‑1) catalyst presents a higher EASA than the commercial Pd/C (411 cm2 mg-1). The onset potential of the ternary catalyst (0.193 V) is lower, the maximum current density (138 mA cm-2) of the forward scan is higher and a better byproduct tolerance is examined compared to the commercial catalyst (0.255 V, 126 mA cm-2). The remaining current density of the PdNiBi/C is 13 % higher than that of the commercial Pd/C.
title: มาตรการทางกฎหมายในการจัดการมลพิษตกค้างจากโรงงานอุตสาหกรรมที่เลิกประกอบกิจการแล้ว : ศึกษากรณีโรงงานอุตสาหกรรมปิโตรเคมี
Creators: name: บุณย์นลิน วินิจนันทกร
Publisher: name: สาขารัฐประศาสนศาสตร์ คณะศิลปศาสตร์ มหาวิทยาลัยกาฬสินธุ์
publisherIdentifierScheme: ROR
Year: 2019
Subjects: โรงงานอุตสาหกรรม
อุตสาหกรรมปิโตรเคมี
มลพิษตกค้าง

description: วารสารการบริหารปกครอง, 8, 1, 371-385
11th Annual Meeting of the European Society for the Study of Human Evolution Abstracts Online, 22-24 September 2021
Creators: name: European Society For The Study Of Human Evolution, ESHE:
Publisher: name: PaleoAnthropology
Year: 2021

description: 2021 ESHE meeting abstracts.
description: PaleoAnthropology, 2021: PaleoAnthropology
Stable Degenerations of Surfaces Isogenous to a Product II
Creators: name: Liu, Wenfei
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J10

description: In this note, we describe the possible singularities on a stable surface which is in the boundary of the moduli space of surfaces isogenous to a product. Then we use the $\mathbb Q$-Gorenstein deformation theory to get some connected components of the moduli space of stable surfaces.
description: 17 pages; the preliminary part is made more concise. Accecpted by Transactions of the American Mathematical Society
Development of a novel wound management dressing based on the combination of collagen and Manuka honey
Creators: name: Neri, Annalisa
Publisher: name: Imperial College London
Year: 2018

description: Wound care, is an extremely challenging field, particularly in the management of chronic hard-to-heal wounds. Nowadays a number of patients are affected by this kind of injuries, which are often associated with other common pathologies, especially diabetes or vascular issues. Chronic wounds are characterised by recurring infections, prolonged inflammation phase and high levels of proteolytic enzymes impairing the normal process of healing. A dressing that actively promotes healing and prevent infection in these difficult wounds is still required; to address this problem a novel formulation based on collagen combined with honey is presented in this work. Collagen is characterised by weak antigenicity and biodegradability. It is naturally involved in the physiological healing process and has shown some potential in the termination of the chronic state of a wound [1]. Manuka honey’s unique anti-inflammatory and anti-bacterial properties are confirmed by a very long clinical history [2]. For these reasons, their combination in the form of film dressings seems suitable for addressing chronic superficial wounds. In addition, the fabrication of collagen–fibronectin films has also been studied. Fibronectin is involved in wound repair in vivo and is also known for stabilising the fibrillary structure of collagen. A process for the production of collagen-based films has been developed. Samples were obtained by swelling and homogenisation of Bovine Type I Collagen with fibronectin or with varying amounts of Manuka honey. The resulting suspensions were dried in hydrophobic glass moulds in a convection oven at 37°C to produce the two types of film dressings (collagen-honey and collagen-fibronectin). The thermal stability, chemical composition, homogeneity, microstructure and mechanical behaviour (stiffness, strength, elongation at break, fracture energy and viscoelasticity) of the films has been extensively investigated and related to their suitability as wound dressings. The swelling behaviour and the degradation rate have been assessed using buffers at different pH values in order to simulate wounds of different depth. The degradation kinetics has also been tested in a simulated wound bed developed in this project in order to mimic more accurately the final application environment. Also, the moisture vapour transmission has been tested. In vitro studies suggest that the collagen-honey films provide good cell viability and proliferation of human skin fibroblasts and keratinocytes while inhibiting bacteria growth for Staphylococcus aureus and epidermidis. The results obtained from the characterisation of the collagen-based films suggest that they are remarkably promising for wound healing application.
Accreting millisecond pulsar SAX J1808.4-3658 during its 2002 outburst: evidence for a receding disc
Creators: name: Ibragimov, Askar
name: Poutanen, Juri
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: An outburst of the accreting X-ray millisecond pulsar SAX J1808.4-3658 in October-November 2002 was followed by the Rossi X-ray Timing Explorer for more than a month. We demonstrate how the area covered by the hotspot at the neutron star surface is decreasing in the course of the outburst together with the reflection amplitude. These trends are in agreement with the natural scenario, where the disc inner edge is receding from the neutron star as the mass accretion rate drops. These findings are further supported by the variations of the pulse profiles, which clearly show the presence of the secondary maximum at the late stages of the outburst after October 29. This fact can be interpreted as the disc receding sufficiently far from the neutron star to open the view of the lower magnetic pole. In that case, the disc inner radius can be estimated. Assuming that disc is truncated at the Alfvén radius, we constrain the stellar magnetic moment to μ=(9\pm5) 10^{25} G cm^3, which corresponds to the surface field of 10^8 G. On the other hand, using the magnetic moment recently obtained from the observed pulsar spin-down rate we show that the disc edge has to be within factor of two of the Alfvén radius, putting interesting constraints on the models of the disc-magnetosphere interaction. We also demonstrate that the sharp changes in the phase of the fundamental are intimately related to the variations of the pulse profile, which we associate with the varying obscuration of the antipodal spot. The pulse profile amplitude allows us to estimate the colatitude of the hotspot centroid to be 4-10 deg.
description: 17 pages, 13 figures; MNRAS, in press; a heavily revised version
title: Einsatz und Betrieb von Pflanzenkläranlagen in der Praxis
Creators: name: Perfler, Reinhard
name: Laber, Johannes
name: Haberl, Raimund
Publisher: name: TU Wien
Year: 1996
Subjects: dezentrale Abwasserreinigung
bepflanzter Bodenfilter
Kleinkläranlage

description: Obwohl über den Einsatz und den Betrieb von Pflanzenkläranlagen mittlerweile sowohl national wie international eine relativ breite und auch verlässliche Datenbasis mit entsprechend positiven Erfahrungen vorliegt, führt der Wunsch nach Anwendung dieser naturnahen Technologie in der Regel nach wie vor zu einem erhöhten (Erklärungs)Aufwand im Genehmigungsverfahren. Durch die Erstellung und rasche Verbreitung von Regelwerken (Normen, Richtlinien) auf Basis des aktuellen Wissensstandes sollen einerseits der Planungsprozeß in technischer und ökonomischer Hinsicht verbessert werden und andererseits die Einsatzmöglichkeiten und -grenzen von Pflanzenanlagen besser beschrieben werden. Die Anwendung der unterschiedlichen Konstruktionsprinzipien ist im Zusammenhang mit der Stellung im Reinigungsprozeß zu beurteilen, wobei die Nitrifikation durch vertikal durchströmte, intermittierend beschickte bepflanzte Bodenfilter am besten gesichert erscheint. Die in der aktuellen Forschung behandelten Fragen befassen sich im wesentlichen mit Optimierungsansätzen für den Reinigungsprozeß - weit über das gesetzlich geforderte Ausmaß (vgl. Emissionsverordnungen) - , mit betriebstechnischen und ökonomischen Verbesserungen sowie mit Fragen sehr spezifischer Einsatzbedingungen. Die positiven Erfahrungen mit dem praktischen Einsatz von Pflanzenanlagen im Kleinkläranlagenbereich lassen eine vermehrte Anwendung dieser Technologie befürworten.
Connectivity of chamber graphs of buildings and related complexes
Creators: name: Björner, Anders
name: Vorwerk, Kathrin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E15, 05C40, 51E24

description: Let Δbe a finite building (or, more generally, a thick spherical and locally finite building). The chamber graph G(Δ), whose edges are the pairs of adjacent chambers in Δ, is known to be q-regular for a certain number q=q(Δ). Our main result is that G(Δ) is q-connected in the sense of graph theory. Similar results are proved for the chamber graphs of Coxeter complexes and for order complexes of geometric lattices.
description: 14 pages, 9 figures
Scattering of electromagnetic waves by long radially inhomogeneous isotropic cylinders
Creators: name: Parkinson, Robert George
Publisher: name: University of British Columbia
Year: 2011

description: The problem of normal-incidence scattering by isotropic cylinders with arbitrary radial permittivity variation and by perfectly conducting cylinders surrounded by radially inhomogeneous isotropic shells is studied. Two types of approximation are considered, namely (i) an approximation of the permittivity variation which allows the use of a power series solution of the wave equation and (ii) approximation of the cylinder by a layered structure. For the latter type, computations are carried out for homogeneous shells and for shells with linearly-varying permittivities. The results are compared with those obtained by numerical integration of the Riccati-type differential equation for impedance or admittance. In general, the homogeneous-shell approximation appears to be easiest to apply and requires a relatively short computation time. It is shown that the scattered-field coefficients can be calculated from measurements of the scattered, field at a single radius by applying a Fourier least-squares fit to the data. The scattered field for plane-wave incidence can therefore be calculated from that for cylindrical-wave incidence, which suggests a more compact system for experimental investigation. Cylinders with a "smoothly" varying permittivity were constructed using a certain type of artificial dielectric. Measurements were carried out in a parallel-plate region for both plane and cylindrical wave incidence; the results obtained agree with computed results and disagree with some previously published theoretical results. As an application, an investigation is made of the range of validity of a planar model when interpreting phase angle measurements on dielectric-enclosed and -unenclosed cylindrical plasmas.
title: Towards a hierarchical indoor data model from a route perspective
Creators: name: Zhou, Zhiyong
name: Weibel, Robert
name: Richter, Kai-Florian
name: Huang, Haosheng
Publisher: name: TU Wien
Year: 2021
Subjects: hierarchy
indoor data model
route instruction

description: Published in “Proceedings of the 16th International Conference on Location Based Services (LBS 2021)”, edited by Anahid Basiri, Georg Gartner and Haosheng Huang, LBS 2021, 24-25 November 2021, Glasgow, UK/online.
description: In mobile navigation systems, an appropriate level of detail of the route instructions provided is important for navigation users to understand, memorise, and follow routes. However, few existing indoor navigation systems are capable of providing route instructions with multiple levels of detail. To close this gap, it is critical to model indoor environments with multiple granularities for route instructions to be generated on varying levels of detail. We propose a hierarchical model for route instructions in multi-storey buildings by allowing for representing actions (i.e., turning left or right, and going straight) in conceptualising route instructions. As a proof of concept, a case study is being conducted to present the feasibility of the proposed hierarchical model.
High-statistics measurement of neutral-pion pair production in two-photon collisions
Creators: name: Uehara, S.
name: Watanabe, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have measured the cross section for pi^0 pi^0 production in two-photon collisions using a data sample with an ntegrated luminosity of 95 fb^-1 collected with the Belle detector. We find at least four resonant structures including a peak from f_0(980), and a fitting of the result to partial-wave amplitudes assuming some resonances are applied. We also make a discussion on the higher-energy region data based on the preliminary results from an increased sample corresponding to the integrated luminosity of 223 fb^-1.
description: 3 pages, 4 figures, proceedings to poster session at ICHEP08, Jul.29-Aug.5, 2008, Philadelphia, PA, USA
Mobility of Paleolithic Populations: Biomechanical Considerations and Spatiotemporal Modelling
Creators: name: Vaissié, Erwan
Publisher: name: PaleoAnthropology
Year: 2021

description: Questions relating to territories and mobility patterns during the Paleolithic are crucial to understanding the social geography of earlier populations. Despite significant progress in the analysis of mobility clues (faunal remains, raw material uses), there have been few advances in their representative models during the last 40 years. Use of GIS and cost distance modelling in this sense has proven to be of great value as they shed light on the impact of the environment on hunter-gatherer mobility patterns. The aim of this study is to present a protocol for cost distance modelling based on the data available from biomechanics on the metabolic cost of mobility and their applicability to the archaeological context. We apply this method to a Mousterian site in the French Massif Central to propose an alternative vision of the techno-economic zonation for lithic raw material acquisition and use. Our results show the impact of walking speed, body mass, terrain, topography, and load on human mobility and allow us to include 3D (highlighting potential paths) and even 4D (suggesting a travel time for covering these paths) models to socio-economic organization of space by human groups. We highlight a completely different perception of time / space relationships within a given territory compared to classical Euclidean representation and establish in a quantified manner the investment (in time and in energy) needed by the group to visit defined points of interest. We discuss the efficiency of GIS cost distance modelling to emphasize socio-economic patterns and choices for past human groups. The usefulness of models in highlighting potential factors behind behavioral variations in the management of space in prehistoric times is also addressed.
description: PaleoAnthropology, 2021: PaleoAnthropology
Analyzing the Obstacles and Crucial Aspects of Implementing Agile Scrum in Southeast Asian IT Companies
Creators: name: Chowdhury, Md Rubel
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 461202
subject: Empirical software engineering
classificationCode: 350713
subject: Project management

description: Agile Scrum methodology has emerged as a transformative approach in the software development landscape, fostering collaboration, flexibility, and rapid delivery. However, the implementation of Agile Scrum in Southeast Asian IT companies presents unique challenges rooted in cultural, organizational, and contextual factors. This research endeavors to explore these challenges comprehensively, shedding light on the intricate dynamics of Agile Scrum adoption in Southeast Asia. Through an in-depth analysis of case studies, interviews, and relevant literature, this paper not only identifies hurdles but also proposes strategic solutions and best practices tailored to the Southeast Asian context, aiming to facilitate successful Agile Scrum implementation in the region.
Conformal invariance, multifractality, and finite-size scaling at Anderson localization transitions in two dimensions
Creators: name: Obuse, Hideaki
name: Subramaniam, Arvind R.
name: Furusaki, Akira
name: Gruzberg, Ilya A.
name: Ludwig, Andreas W. W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We generalize universal relations between the multifractal exponent α_0 for the scaling of the typical wave function magnitude at a (Anderson) localization-delocalization transition in two dimensions and the corresponding critical finite size scaling (FSS) amplitude Λ_c of the typical localization length in quasi-one-dimensional (Q1D) geometry: (i) When open boundary conditions are imposed in the transverse direction of Q1D samples (strip geometry), we show that the corresponding critical FSS amplitude Λ_c^o is universally related to the boundary multifractal exponent α_0^s for the typical wave function amplitude along a straight boundary (surface). (ii) We further propose a generalization of these universal relations to those symmetry classes whose density of states vanishes at the transition. (iii) We verify our generalized relations [Eqs. (6) and (7)] numerically for the following four types of two-dimensional Anderson transitions: (a) the metal-to-(ordinary insulator) transition in the spin-orbit (symplectic) symmetry class, (b) the metal-to-(Z_2 topological insulator) transition which is also in the spin-orbit (symplectic) class, (c) the integer quantum Hall plateau transition, and (d) the spin quantum Hall plateau transition.
description: 13 pages, 7 figures
Predicting postoperative liver cancer death outcomes with machine learning
Creators: name: Wang, Yong
name: Ji, Chaopeng
name: Wang, Ying
name: Ji, Muhuo
name: Yang, Jian-Jun
name: Zhou, Cheng-Mao
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Science Policy
subject: Plant Biology
subject: FOS: Biological sciences
subject: Virology

description: To investigate the effect of 5 machine learning algorithms in predicting total hepatocellular carcinoma (HCC) postoperative death outcomes. This study was a secondary analysis. A prognosis model was established using machine learning with python. The results from the machine learning gbm algorithm showed that the most important factors, ranked from first to fifth, were: preoperative aspartate aminotransferase (GOT), preoperative AFP, preoperative cereal third transaminase (GPT), preoperative total bilirubin, and LC3. Postoperative death model results for liver cancer patients in the test group: of the 5 algorithm models, the highest accuracy rate was that of forest (0.739), followed by the gbm algorithm (0.714); of the 5 algorithms, the AUC values, from high to low, were forest (0.803), GradientBoosting (0.746), gbm (0.724), Logistic (0.660) and DecisionTree (0.578). Machine learning can predict total hepatocellular carcinoma postoperative death outcomes.
Chemical biology tools for ion channel drug discovery
Creators: name: Raymond, Philip Neil
Publisher: name: Imperial College London
Year: 2017

description: Ion channels are important therapeutic targets for drug discovery. Voltage Gated Sodium Channels (VGSCs), for example, are involved in the treatment of chronic pain, epilepsy and cardiac arrhythmia, amongst other conditions. However, drugs, chemical probes and other small molecule imhibitors used to investigate or modulate them are typically unselective between VSGC subtypes, and other ion channels. The research described in this thesis develops chemical methodology that will allow for greater insight into the subtype-selective structure, function and modulation of these proteins, with a particular emphasis on VGSCs implicated in pain pathways. The first chapter describes the development of novel methodology for the synthesis of vinyl sulfonamides, an electrophilic class of molecules that can be used in the affinity labelling of a variety of classes of ion channel, including some of those involved in pain pathways. The second chapter describes the development of photoaffinity labelling probes in an attempt to define the binding site of a subtype-selective series of inhibitors of NaV1.8, a VGSC found in the peripheral nervous system strongly implicated in the transmission of pain. It then goes on to develop a hypothesis for the mechanism behind this subtype-selectivity by combining computational modelling with information gained in the development of the aforementioned probes. The final chapter moves from the structure to the function of the channels, describing early work towards synthesising subtype-selective photocaged tools, with which the function of NaV1.8 could be explored with spatial and temporal precision. In this context, it also explores the question of whether or not meso-methyl substituted BODIPY compounds can be used as photocaging groups for amides.
Treacherous Evidence: Archival Documents and the Search for Peking Man
Creators: name: Roberts, Michael F.
name: DeVisser, Elizabeth M.
name: Marrant, Joel P.
Publisher: name: PaleoAnthropology
Year: 2021

description: The Peking Man skeletal materials, excavated in China in the 1920s and 1930s, disappeared in December 1941. The assumption that the fossils were acquired by the U.S. military has emerged as the core idea of what we call the “Standard Scenario.” We challenge this scenario by 1) highlighting the factual and chronological inconsistencies in the accounts of the loss of the fossils; 2) critiquing the casual and uncritical acceptance of personal reports lacking independent verification; 3) emphasizing the absence in official archives of supposed documents used to support the Standard Scenario; and, 4) reanalyzing a 1972 photograph used by some investigators to associate the fossils with the U.S. Marines. Our detailed forensic analysis strongly suggests the 1972 photograph is a deception. In addition, we present 5) a previously unknown document from U.S. State Department archives that indicates it is very unlikely that the fossils were delivered to American hands. We propose that there is no evidence the U.S. ever obtained the fossils and that any future investigations must be based on research into actual documents relevant to their loss. Our approach should invite mindful consideration of alternatives to the Standard Scenario that have been thus far ignored.
description: PaleoAnthropology, 2021: PaleoAnthropology
title: Transdisciplinary and Participatory Research for Robotic Care Technology - Mapping Challenges and Perspectives
Creators: name: Frijns, Helena Anna
name: Dobrosovestnova, Anna
name: Brauneis, Carina
name: Grabler, Reinhard
name: Hirschmanner, Matthias
name: Stoeva, Darja
name: Vetter, Ralf
name: Vogel, Laura
Publisher: name: TU Wien
Year: 2022
Subjects: Transdisciplinary Collaboration
Human-Robot Interaction
Care
Participatory Design

description: The presentation was peer reviewed.
description: The project Caring Robots // Robotic Care is a transdisciplinary research collaboration between scientific disciplines and practice partners to engage in participatory design processes for (robotic) care technology. As transdisciplinary work presents not only opportunities for new solutions, but also challenges when it comes to finding a shared language, bridging disciplinary boundaries and respecting perspectives of stakeholders, we conducted an exercise of documenting interpretations of PhD and master students with different disciplinary backgrounds regarding care, project success and challenges we experience or expect to encounter. In this short paper, we summarize the key themes that came up and complement them with the perspective of a representative of the care institution that is our research partner (Caritas Wien).
Radiative Decays of the Heavy Flavored Baryons in Light Cone QCD Sum Rules
Creators: name: Aliev, T. M.
name: Azizi, K.
name: Ozpineci, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The transition magnetic dipole and electric quadrupole moments of the radiative decays of the sextet heavy flavored spin 3/2 to the heavy spin 1/2 baryons are calculated within the light cone QCD sum rules approach. Using the obtained results, the decay rate for these transitions are also computed and compared with the existing predictions of the other approaches.
description: 49 Pages, 40 Figures and 4 Tables
title: ความคิดเห็นเกี่ยวกับการบริหารจัดการโครงสร้างพื้นฐานเพื่อรองรับการขยายตัวของเมือง กรณีศึกษาเทศบาลตำบลบ้านเป็ด อำเภอเมือง จังหวัดขอนแก่น
Creators: name: นันทพจน์  บุญประสิทธิ์
Publisher: name: สาขารัฐประศาสนศาสตร์ คณะศิลปศาสตร์ มหาวิทยาลัยกาฬสินธุ์
publisherIdentifierScheme: ROR
Year: 2019
Subjects: การบริหารจัดการ
โครงสร้างพื้นฐาน
การขยายตัวของเมือง

description: วารสารการบริหารปกครอง, 8, 1, 386-404
A New Analysis of An Old Box of Bones: Debunking a Peking Man Deception
Creators: name: DeVisser, Elizabeth M.
name: Roberts, Michael F.
name: Marrant, Joel P.
Publisher: name: PaleoAnthropology
Year: 2021

description: Anthropologists have searched fruitlessly for the Peking Man fossils for almost eighty years. Writers have made many unwarranted claims about the loss of the fossils, starting with the assumption that they were transferred from Chinese to American control just before the Japanese attack on Pearl Harbor in 1941 and then brought to the United States. This line of thinking is primarily supported by a highly suspect piece of evidence that came to public attention in 1972—a photograph of a Marine footlocker with many bones, one of which appeared to be a Peking Man skull. Although experts examined the photograph, no formal analysis was performed. Nonetheless, people who have written about this subject have assumed the box of bones contains at least one of the Peking Man fossils and thus that the collection reached the U.S. After conducting a detailed inventory and analysis of the contents of the footlocker as revealed in the photograph, we propose that the photograph is a deception; all bones except the skull are modern anatomical specimens while the skull is best interpreted as a teaching cast. Thus, the photograph cannot be used as evidence that the Peking Man fossils ever came to the U.S.
description: PaleoAnthropology, 2021: PaleoAnthropology
Something Something Something: Toward a Minor Practice
Creators: name: Gronsdahl, Troy
Publisher: name: Emily Carr University of Art and Design
Year: 2015
Subjects: Conceptual art
Irony in art
Wit and humor in art
Minimal art

description: The social and political relevance of contemporary art is bound up in paradox. As the perceived failures of the avant-garde demonstrate, even the most radical projects of the 20th century eventually succumb to some form of institutional enfranchisement. As an artist working within an art museum, this irony is particularly acute. Given the problematic political biases of the institutions of art, how can artists elude this performative capture to exercise their agency? In response to this, artists have probed the boundaries of art practice seeking a way out. Acts of complete withdrawal, while dramatic, are not productive. Critique plays an important political function of art, yet negation on its own is not enough. There is, I think, another way: not a way out but a way in. Situated in and between modes of affirmation and dissent, my sculptures, texts and photographs work in dialogue with art world conventions to create witty and poetic meditations on art and knowledge. Through the use of humour and ambiguity, I operate strategically within dominant narratives to keep performative capture at bay. Using a methodology adapted from Deleuze and Guattari's theory of the minor, I aim to create a space of productive estrangement to call forth new subjectivities.
description: In support of the fulfillment of Low-Residency Master of Applied Arts degree in Visual Arts.
description: Humour
description: Irony
description: Minor practice
Extreme coronagraphy with an adaptive hologram Simulations of exo-planet imaging
Creators: name: Ricci, D.
name: Coroller, H. Le
name: Labeyrie, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Aims. We present a solution to improve the performance of coronagraphs for the detection of exo-planets. Methods. We simulate numerically several kinds of coronagraphic systems, with the aim of evaluating the gain obtained with an adaptive hologram. Results. The detection limit in flux ratio between a star and a planet (Fs/Fp) observed with an apodized Lyot coronagraph characterized by wavefront bumpiness imperfections of lambda/20 (resp. lambda/100) turns out to be increased by a factor of 10^3.4 (resp. 10^5.1) when equipped with a hologram. Conclusions. This technique could provide direct imaging of an exo-Earth at a distance of 11 parsec with a 6.5m space telescope such as the JWST with the optical quality of the HST.
description: 8 pages, 1 figure
title: Improved Breaking Length Development of Unbleached Softwood Kraft Pulp in PFI Refining by Addition of Primary Fines
Creators: name: Mandlez, Daniel
name: Zangl-Jagiello, Lukas
name: Eckhart, Rene
name: Bauer, Wolfgang
Publisher: name: TU Wien
Year: 2020
Subjects: Kraft pulp
Primary fines
Beating
Refining

description: Nowadays the so called fines fraction is experiencing increasing interest for the papermaking society, as an essential component of any papermaking pulp. It shows distinctive properties affecting both production process and product properties to a large extent. Several research groups have experimented with either primary and/or secondary fines to assess their corresponding properties in the recent years. When it comes to the influence of primary fines on paper and process, these studies do not always show consistent results, attributed to different raw materials considered, to retention issues during sheet forming or maybe to formation issues arising at higher dosages. This work focuses on the clarification, how primary fines of unbleached softwood kraft pulp (Kappa number ~27) influence the product and process parameters, especially if the total fines amount is risen compared to the original stock. Primary fines are separated from the pulp using a laboratory pressure screen to be added again in controlled amounts afterwards. Thereby three pulp blends, showing a primary fines content of around 5%, 9% and 12% where prepared. These pulp blends were refined in a PFI mill at 1000, 4500 and 6000 revolutions and compared with the unbeaten reference. The refining treatment mainly resulted in fiber flexibilisation and internal fibrillation while barely any secondary fines were produced. Because retention of the fines material might be an issue, a Rapid-Köthen sheet former with white water recirculation was used. The results of paper testing show that the tensile index develops at lower specific refining energy when adding primary fines prior to refining due to increased densification of the sheets. The results also show increased dewatering resistance (Schopper-Riegler) at a given tensile index, while densification and air permeability (Gurley) are comparable. Considering the linear relationship between tensile index and sheet density – independent of the fines content – it can be concluded that fibre flexibilisation and primary fines both enhance fibre-fibre bonding and that both strategies result in the same increase in mechanical strength with the downside of slightly reduced dewatering in case of the introduction of primary fines.
Reevaluation of the Classification Scheme of the Acheulian in the Levant - 50 Years Later: A Morpho-Technological Analysis of Handaxe Variability
Creators: name: Herzlinger, Gadi
name: Varanda, Alexandre
name: Deschamps, Marianne
name: Brenet, Michel
name: Lopez-Tascon, Christina
name: Goren-Inbar, Naama
Publisher: name: PaleoAnthropology
Year: 2021

description: The chrono-cultural scheme of the Acheulian Technocomplex in the Levant, developed in the 1970’s on the basis of handaxe typological variability, still serves as the main framework for the description of this cultural entity and as a benchmark for the classification of new Acheulian assemblages. It consists of a tripartite division into Early, Middle, and Late Acheulian and it postulates a development in the shapes, sizes, and refinement of handaxes, suggesting that they become rounder, smaller, and more ‘finely made’ over time. The following study applies new analytical approaches, a 3D geometric morphometric shape analysis, a typo-technological attribute analysis, and diacritic diagrams to a large collection of handaxes from five sites in Israel in order to test the validity of the tripartite division, and to provide a detailed characterization of the nature of diachronic changes in handaxe properties. The results suggest that the general chrono-cultural division is valid, as assemblages pertaining to each of its three phases indeed differ significantly in terms of morphology and production technologies. In addition, they indicate a complex trend of change, in which the Middle Acheulian assemblage presents higher values of morpho-technological aspects associated with craftsmanship than some of the Late Acheulian assemblages. Lastly, the quantitative and objective nature of the approach and availability of the raw data establish a foundation for future expansion of this study by additional samples from different regions and chronologies.
description: PaleoAnthropology, 2021: PaleoAnthropology
Alcune forme di poesia dialettale sarda
Creators: name: Saba, Mario
Publisher: name: University of British Columbia
Year: 2011

description: In questo lavoro ho trattato alcune forme di poesia dialettale sarda quali il "muttu o muttettu," i "canti della culla," le "cantilene infantili," e i "canti funebri." Del muttu, forma caratteristica della poesia popolare sarda, al quale ho dedicato il primo cpitolo, ho analizzato per lo più quei problemi connessi con la sua struttura, forma, origine e quindi i suoi rapporti con componimenti di altre regioni italiane, e anche non italiane, portando esempi di muttus di varie parti della Sardegna per farne notare, più che il contenuto, che molto spesso in tali canti è simile, la diversità ortografica delle composizioni, diversità dovuta al gran numero di dialetti esistenti nell' isola. Nel secondo capitolo tratto invece i canti della culla e quelli della tomba. Dei canti della culla, che suddivido in ninnenanne e cantilene infantili, faccio notare il contenuto, ricco di espressioni vocative e di epiteti ispirati in gran parte alla natura: fiori, piante, frutta che offrono a questi canti, talvolta lenti e monotoni, talvolta allegri, un inesauribile repertorio. Dei canti della tomba, che in Sardegna vengono chiamati "attittidos," perchè erano spesso cantati dalle "attittadoras" o prefiche, porto soltanto esempi, interessanti e molto spesso inediti, da me raccolti in varie località dell'isola e pazientemente trascritti. L'importanza di questi canti e cantilene non è da ricercarsi nel loro valore letterario che è senz'altro minimo bensì nel loro grande valore folkloristico in quanto sono le ultime testimonianze di un folklore che pian piano ma inesorabilmente sta scomparendo.
Web 2.0 OLAP: From Data Cubes to Tag Clouds
Creators: name: Aouiche, Kamel
name: Lemire, Daniel
name: Godin, Robert
Publisher: name: arXiv
Year: 2009
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Increasingly, business projects are ephemeral. New Business Intelligence tools must support ad-lib data sources and quick perusal. Meanwhile, tag clouds are a popular community-driven visualization technique. Hence, we investigate tag-cloud views with support for OLAP operations such as roll-ups, slices, dices, clustering, and drill-downs. As a case study, we implemented an application where users can upload data and immediately navigate through its ad hoc dimensions. To support social networking, views can be easily shared and embedded in other Web sites. Algorithmically, our tag-cloud views are approximate range top-k queries over spontaneous data cubes. We present experimental evidence that iceberg cuboids provide adequate online approximations. We benchmark several browser-oblivious tag-cloud layout optimizations.
description: Software at https://github.com/lemire/OLAPTagCloud. arXiv admin note: substantial text overlap with arXiv:0710.2156