cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Peculiarities of Surface Plasmons in Quantum Plasmas
Creators: name: Tyshetskiy, Yuriy O.
name: Vladimirov, Sergey V.
name: Kompaneets, Roman
Publisher: name: arXiv
Year: 2012
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Surface plasmons (SP) in a semi-bounded quantum plasma with degenerate electrons (e.g., a metal) is considered, and some interesting consequences of electron Pauli blocking for the SP dispersion and temporal attenuation are discussed. In particular, it is demonstrated that a semi-bounded degenerate plasma with a sharp boundary supports two types of SP with distinct frequencies and qualitatively different temporal attenuation, in contrast to a non-degenerate plasma that only supports one type of SP \citep{Guernsey_1969}.
description: 10 pages, 3 figures. Submitted to Journal of Plasma Physics. arXiv admin note: text overlap with arXiv:1111.6723
Eine transportable optische Gitteruhr basierend auf Strontium
Creators: name: Vogt, Stefan
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Optical clocks
subject: frequency standards
subject: lattice clocks
subject: transportable clocks
subject: laser cooling
subject: permanent magnet Zeeman slower
subject: Optische Uhren
subject: Frequenzstandards
subject: Gitteruhren
subject: transportable Uhren
subject: Strontium
subject: Laserkühlung
subject: Zeeman-Abbremser aus Permanentmagneten
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
CORRELATION OF NECK AND WRIST CIRCUMFERENCE WITH VARIOUS ANTHROPOMETRY INDICES AMONG STUDENT OF AFE BABALOLA UNIVERSITY, ADO-EKITI (ABUAD)
Creators: name: ENYE L. A
name: SAKA O. S
name: ADEWOLE O. S
name: OGUNSANYA S T
name: SAKA A. A
name: OLUWABUSOLA A. E
name: CHUKWU C. B
Publisher: name: Zenodo
Year: 2023
Subjects: BMI, Neck circumference, Waist circumference, Height, obese.

description: Abstract
Aim of study: The aim of this study is to determine the prevalence of obesity among students at Afe Babalola University in Ado Ekiti and its connection to anthropometry indices. Patients and methods: Type of study is cross sectional study. Afe Babalola University was the site of the study, with samples drawn at random from students at the several colleges. The age considered was between 18-25 years old of both male and female. Using the formula BMI=weight in Kg/height in meter squared, we assessed height using a tape measure and weight using a weighing scale. Result: Out of the 113 male students, 59.3%, 9.7%, 18.6%, and 12.4% were normal weight, underweight, overweight, and obese, whereas out of the 161 female students, 52.2%, 8.7%, 27.3%, and 11.8% were normal weight, underweight, overweight, and obese respectively. A significant positive correlation is found between neck circumference and the BMI, waist circumference, in female normal weight. A significant positive correlation is found between neck circumference and the waist circumference, in female overweight and obese group respectively. A significant positive correlation is found between wrist circumference and the waist circumference, hip circumference in male normal, while a positive significant correlation was observed between wrist circumference and height, BMI, waist circumference and weight in female normal. A significant positive correlation is found between wrist circumference and the height, weight in male overweight group, while a positive significant correlation was observed between wrist circumference and hip circumference, weight in female overweight. In the obese group a significant positive correlation was observed between the wrist circumference with the height and waist to hip ratio in male while waist to hip ratio in female. Conclusion: Neck and wrist circumference had significant positive correlation with waist circumference and BMI in the female than male subject at normal, overweight and obese.
Untersuchung von Abbauprozessen an bioresorbierbaren Implantatmaterialien
Creators: name: Vano Herrera, Kelim
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Implant materials
subject: degradability
subject: poly (L-lactide)
subject: in-stent-stenosis
subject: Implantatmaterialien
subject: Abbaubarkeit
subject: Stent
subject: BMS
subject: DES
subject: Poly(L-lactid)
subject: Paclitaxel
subject: Sirolimus
subject: In-Stent-Stenose
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
title: Die Anfänge des Neolithikums vom Orient bis Nordeuropa. Herausgegeben von H. Schwabedissen unter Mitwirkung zahlreicher Fachwissenschaftler - bearbeitet von J. Lüning
Creators: name: Schwabedissen, Hermann
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Die Anfänge des Neolithikums vom Orient bis Nordeuropa. Herausgegeben von H. Schwabedissen unter Mitwirkung zahlreicher Fachwissenschaftler - bearbeitet von J. Lüning. Fundamenta-Monographien zur Urgeschichte, Reihe A, Bd. 3, Teil VI "Frankreich". 255 S. , 24 Abb. , 158 Taf. Teil VII "Westliches Mittelmeergebiet und Britische Inseln". 250 S. , 43 Abb. , 85 Taf
title: Acta praehistorica et archaeologica. Adriaan von Müller, Gerdt Kutscher, Stephan Waetzoldt, Berlin 1970
Creators: name: Ankel, Cornelius
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Acta praehistorica et archaeologica. Herausgegeben für die Berliner Gesellschaft für Anthropologie, Ethnologie und Urgeschichte, das Iberoamerikanische Institut Preussischer Kulturbesitz Berlin, die Staatlichen Museen Preussischer Kulturbesitz Berlin, vonAdriaan von Müller, Gerdt Kutscher, Stephan Waetzoldt, Bruno Hessling-Verlag Berlin, Bd. 1, 1970, 216 S. u. zahlr. Abb.
Numerische und algebraisch-graphentheoretische Algorithmen für korrelierte Quantensysteme
Creators: name: Paech, Martin
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Bethe lattice
subject: Butcher trees
subject: (blind) deconvolution
subject: dynamical density-matrix renormalization group
subject: high-performance computing
subject: (extended) Hubbard model
subject: Kato(-Takahashi) perturbation theory
subject: Mott transition
subject: noise reduction
subject: strong-coupling limit
subject: Bethegitter
subject: Butcherbäume
subject: dynamische Dichtematrix-Renormierungsgruppe
subject: (blinde) Entfaltung
subject: Hochleistungsrechnen
subject: (erweitertes) Hubbardmodell
subject: Kato(-Takahashi)-Störungstheorie
subject: Mottübergang
subject: Rauschfilterung
subject: Starkwechselwirkungslimes
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Kontextbasierte Sicherheitsmaßnahmen für mobile Geräte in nicht vertrauenswürdigen Netzwerken
Creators: name: Szongott, Christian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Context-based recognition
subject: spreading
subject: Evil Twin
subject: Hotspot
subject: kontextbasierte Erkennung
subject: mobile Malware
subject: Ausbreitung
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: [no abstract]
Relativistic Mean-Field Models and Nuclear Matter Constraints
Creators: name: Dutra, M.
name: Lourenço, O.
name: Carlson, B. V.
name: Delfino, A.
name: Menezes, D. P.
name: Avancini, S. S.
name: Stone, J. R.
name: Providência, C.
name: Typel, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: This work presents a preliminary study of 147 relativistic mean-field (RMF) hadronic models used in the literature, regarding their behavior in the nuclear matter regime. We analyze here different kinds of such models, namely: (i) linear models, (ii) nonlinear σ^3+σ^4 models, (iii) σ^3+σ^4+ω^4 models, (iv) models containing mixing terms in the fields σand ω, (v) density dependent models, and (vi) point-coupling ones. In the finite range models, the attractive (repulsive) interaction is described in the Lagrangian density by the σ(ω) field. The isospin dependence of the interaction is modeled by the ρmeson field. We submit these sets of RMF models to eleven macroscopic (experimental and empirical) constraints, used in a recent study in which 240 Skyrme parametrizations were analyzed. Such constraints cover a wide range of properties related to symmetric nuclear matter (SNM), pure neutron matter (PNM), and both SNM and PNM.
description: 3 Pages, submitted for proceedings of XXXV Reuni\~ao de Trabalho sobre F\'isica Nuclear no Brasil 2012
Event topology and global observables in heavy-ion collisions at the Large Hadron Collider
Creators: name: Prasad, Suraj
name: Mallick, Neelkamal
name: Behera, Debadatta
name: Sahoo, Raghunath
name: Tripathy, Sushanta
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Particle production and event topology are very strongly correlated in high-energy hadronic and nuclear collisions. Event topology is decided by the underlying particle production dynamics and medium effects. Transverse spherocity is an event shape observable, which has been used in pp and heavy-ion collisions to separate the events based on their geometrical shapes. It has the unique capability to distinguish between jetty and isotropic events. In this work, we have implemented transverse spherocity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV using A Multi-Phase Transport Model (AMPT). While awaiting for experimental explorations, we perform a feasibility study of dependence of transverse spherocity on some of the global observables in heavy-ion collisions at the Large Hadron Collider energies. These global observables include the Bjorken energy density ($ε_{\rm B_j}$), speed of sound ($c_{\rm s}^2$) in the medium and the kinetic freeze-out properties for different collision centralities. The present study reveals about the usefulness of event topology dependent measurements in heavy-ion collisions in contrast to proton-proton collisions.
description: Same as the published version
Kompetenzorientierung in modularisierten Studiengängen zur Schließung curricularer Lücken
Creators: name: Schmidt, Sibylle
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Learning-outcomes
subject: curriculum development
subject: soft skills
subject: Bologna-Reform
subject: Kompetenzorientierung
subject: Studiengangsentwicklung
subject: Hochschuldidaktik
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: [no abstract]
Tibet- Tibetan Dance with Sword and Kata (Veil of Friendship)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2020
Subjects: Tibetans

description: Raphael Tuck & Sons postcard featuring two Tibetan children playing with swords in its Oilette Series on Tibet. Painting is adapted from "Tibet" by A. Henry Savage Landor.
Lipschitz geometry of complex curves
Creators: name: Neumann, Walter D.
name: Pichon, Anne
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14B05, 32S25, 32S05, 57M99

description: We describe the Lipschitz geometry of complex curves. For the most part this is well known material, but we give a stronger version even of known results. In particular, we give a quick proof, without any analytic restrictions, that the outer Lipschitz geometry of a germ of a complex plane curve determines and is determined by its embedded topology. This was first proved by Pham and Teissier, but in an analytic category.
description: Added acknowledgements, a reference and extra details in proof of 5.1
Prevalence of Bovine Trypanosomosis in Abeshige District of Gurage Zone, South Western Ethiopia
Creators: name: Lemma, Fethu
name: Alemu, Sisay
name: Haile, Sisay
Publisher: name: East African Journal of Veterinary and Animal Sciences
Year: 2017

description: A cross sectional study was conducted from November 2014 to May 2015 in Abeshige district of Gurage Zone in Southwestern Ethiopia with the objectives of estimating the prevalence and identifying the species of trypanosomes. A total of 498 blood samples were collected and tested using conventional thin smear and buffy coat techniques. The result revealed an overall prevalence rate of 12.4% trypanosomosis. There were no significant difference in prevalence between animals of different location, age, sex and breed (p>0.05). The mean PCV of parasitemic animals (24.5%) was significantly lower than that of aparasitemic animals (29%) (p<0.05). The most commonly encountered trypanosome species among parasitemic cattle was T. congolense (67.7%) followed by T. vivax (29%) and mixed (T. congolense and T. vivax) (2.3%) infections. In conclusion, the result indicated trypanosomosis to be a major livestock production challenge in the study area that warrant control strategies.
description: East African Journal of Veterinary and Animal Sciences, Vol. 1 No. 1 (2017): East African Journal of Veterinary and Animal Sciences
Surface plasmon polaritons in a semi-bounded degenerate plasma: role of spatial dispersion and collisions
Creators: name: Tyshetskiy, Yuriy
name: Vladimirov, Sergey V.
name: Kompaneets, Roman
Publisher: name: arXiv
Year: 2012
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Surface plasmon polaritons (SPPs) in a semi-bounded degenerate plasma (e.g., a metal) are studied using the quasiclassical mean-field kinetic model, taking into account the spatial dispersion of the plasma (due to quantum degeneracy of electrons) and electron-ion (electron-lattice, for metals) collisions. SPP dispersion and damping are obtained in both retarded ($ω/k_z\sim c$) and non-retarded ($ω/k_z\ll c$) regions, as well as in between. It is shown that the plasma spatial dispersion significantly affects the properties of SPPs, especially at short wavelengths (less than the collisionless skin depth, $λ\lesssim c/ω_{pe}$). Namely, the collisionless (Landau) damping of SPPs (due to spatial dispersion) is comparable to the purely collisional (Ohmic) damping (due to electron-lattice collisions) in a wide range of SPP wavelengths, e.g., from $λ\sim20$ nm to $λ\sim0.8$ nm for SPP in gold at T=293 K, and from $λ\sim400$ nm to $λ\sim0.7$ nm for SPPs in gold at T=100 K. The spatial dispersion is also shown to affect, in a qualitative way, the dispersion of SPPs at short wavelengths $λ\lesssim c/ω_{pe}$.
title: Stone artefacts from Saaleck and their position in the late Young Palaeolithic between the rivers Weisse Elster, Saale and Unstrut
Creators: name: Bock, Clemens
name: Genschow, Michael
name: Hellmich, Martin
name: Köhler, Sylvia
name: Mewes, Maximilian
name: Otto, Grit
name: Pasda, Clemens
name: Pollock, Michaela
name: Roa Romero, Roland
name: Rüdel, Casha
name: Weiss, Juliane
name: Zeiss, Diana
Publisher: name: University Library Heidelberg
Year: 2016

description: Grundlage der Arbeit ist die Vorstellung bisher unveröffentlichten Steinartefaktmaterials von der großen Magdalénien- Fundstelle Saaleck (Burgenlandkreis, Sachsen-Anhalt). Hierzu werden die bisherigen zu dieser Freilandfundstelle publizierten Ergebnisse zusammengefasst und die mit der Arbeit erzielten Daten im Kontext der im letzten Jahrzehnt zum späten Jungpaläolithikum Mitteldeutschlands erzielten Erkenntnisse präsentiert. Funktionale Unterschiede zu anderen Magdalénien-Fundstellen der Region lassen sich nicht fassen, allerdings zeichnen sich die Feuersteingeräte von Saaleck durch eigenständige Merkmale aus. Nach Abschluss einer Diskussion zur Archäostratigraphie des späten Jungpaläolithikums und Spätpaläolithikums zwischen Weißer Elster, Saale und Unstrut wird vorgeschlagen, Saaleck jünger als die Nebraer Gruppe des mitteldeutschen Magdaléniens zu datieren.
description: The central part of this article is the presentation of the hitherto unpublished stone artefacts from the large Magdalenian site Saaleck (Burgenlandkreis, Saxony-Anhalt). For this purpose, the results so far published on this open air site are summarised and the data is contextualised within the findings on the late Young Palaeolithic of Central Germany from the last decades. Functional differences to other Magdalenian sites of the region cannot be distinguished. However, the flint tools from Saaleck are characterised by distinctive features. Following a discussion on archaeostratigraphy of the late Young Palaeolithic and the Late Palaeolithic between the rivers Weisse Elster, Saale and Unstrut it appears plausible to date the site Saaleck later than the Nebra Group of the Central German Magdalenian.
title: Machine Learning Techniques as Applied to Discrete and Combinatorial Structures
Creators: name: Schwartz, Samuel David
Publisher: name: Utah State University
Year: 2019

description: Machine Learning Techniques have been used on a wide array of input types: images, sound waves, text, and so forth. In articulating these input types to the almighty machine, there have been all sorts of amazing problems that have been solved for many practical purposes.

Nevertheless, there are some input types which don’t lend themselves nicely to the standard set of machine learning tools we have. Moreover, there are some provably difficult problems which are abysmally hard to solve within a reasonable time frame.

This thesis addresses several of these difficult problems. It frames these problems such that we can then attempt to marry the allegedly powerful utility of existing machine learning techniques to the practical solvability of said problems.
title: A Structural Equation Modeling Approach Combining Multitrait-Multimethod Designs with Moderated Mediation Analysis
Creators: name: Litson, Kaylee
Publisher: name: Utah State University
Year: 2019

description: Researchers who study clinical and developmental psychology are often interested in answering questions such as how interventions work, when treatment begins to improve health outcomes, or for whom treatment has the greatest impact. Answers to these and similar questions impact the general understanding of health and behavior, and can be imperative for effectively implementing intervention and prevention programs. To evaluate such complex relationships among variables, researchers have turned to moderated mediation analysis. Moderated mediation analysis is a statistical tool used to identify the conditional processes among observed or latent variables. However, in developmental and clinical psychology, variables are regularly measured using multiple sources or multiple methods. In fact, best practice recommendations in clinical psychology suggest measuring variables with multiple methods (Achenbach, 2006). The question arises how to use multimethod assessments in statistical analyses such as moderated mediation analysis. The objectives of the present study were to create a multimethod moderated mediation model, apply the model to an extant dataset of child developmental behaviors, and evaluate conditions under which the model performed well using a Monte Carlo simulation study. Results from the application showed that the indirect path from hyperactivity to academic impairment through oppositional defiant behavior was significant but not moderated by inattention. Results from the simulation study indicated that excluding true method effects from a moderated mediation model resulted in unacceptable parameter and standard error bias. These results point to the advantages of using the M4 model to evaluate moderated mediation in the presence of multimethod data.
Control of conditional quantum beats in cavity QED: amplitude decoherence and phase shifts
Creators: name: Cimmarusti, A. D.
name: Schroeder, C. A.
name: Patterson, B. D.
name: Orozco, L. A.
name: Barberis-Blostein, P.
name: Carmichael, H. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We implement a simple feedback mechanism on a two-mode cavity QED system to preserve the Zeeman coherence of a ground state superposition that generates quantum beats on the second-order correlation function. Our investigation includes theoretical and experimental studies that show how to prevent a shift away from the Larmor frequency and associated decoherence caused by Rayleigh scattering. The protocol consists of turning off the drive of the system after the detection of a first photon and letting it evolve in the dark. Turning the drive back on after a pre-set time reveals a phase accumulated only from Larmor precession, with the amplitude of the quantum beat more than a factor of two larger than with continuous drive.
description: 17 pages, 9 figures
title: Developing and Securing Software for Small Space Systems
Creators: name: Shirley, Brandon L.
Publisher: name: Utah State University
Year: 2019

description: The space systems industry is moving towards smaller multi-vendor satellites, known as Small Space. This shift is driven by economic and technological factors that necessitate hardware and software components that are modular, reusable, and secure. This research addresses two problems associated with the development of modular, reusable, and secure space systems: developing software for space systems (the Development Problem) and securing space systems (the Security Problem). These two problems are interrelated and this research addresses them together.

The Development Problem encompasses challenges that space systems developers face as they try to address the constraints induced by reduced budgets, design and development lifecycles, maintenance allowances, multi-vendor component integration and testing timelines. In order to satisfy these constraints a single small satellite might incorporate hardware and software components from dozens of organizations with independent workforces and schedules. The Security Problem deals with growing need to ensure that each one of these software or hardware components behaves according to policy or system design as well as the typical cybersecurity concerns that face any information system.

This research addresses the Development Problem by exploring the needs and barriers of Small Space to find the best path forward for the space systems industry to catch up with the methodology advancements already being widely used in other software fields. To do this exploration a series of five surveys, referred to as SISDPA, was conducted to assess current attitudes and state of practice among space system developers. This crystallized a need in space system development — modular reusable open networks can help Small Space realize its potential, but there is still need to address certain security threats.

This research addresses the Security Problem by augmenting a modular reusable open-network software development framework, called SSM, by adding policy enforcement in the form of authentication, access control, and encryption provisions, to create a new development framework, SSSM. This design and implementation adds security provisions while minimizing the impact on developers using the framework. SSSM is evaluated in terms of developer and system resource burden and shows that SSSM does not significantly increase developer burden and preserves the ease-of-use of SSM.
Nanopartikel-Biotestung mittels in-vitro-Kulturen von Säugerzellen
Creators: name: Sambale, Franziska
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Nanotoxicology
subject: nanoparticles
subject: 3D cell growth
subject: dynamic cultivation
subject: Nanotoxikologie
subject: Nanopartikel
subject: 3D-Zellwachstum
subject: dynamische Kultivierung
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
Hermite Polynomial Representation of the Spin States
Creators: name: Lemeshevskiy, Dmitry B.
name: Man'ko, Vladimir I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The invertable map of spin state density operator onto quasiprobability distribution of three continuous variables is constructed. The connection with two-mode electromagnetic field oscillators is discussed. The inversion formula for spin-density matrix is given in terms of Hermite polynomials. The connection with the spin-tomographic representation is examined. The problem of the magnetic moment rotation in the magnetic field is considered in the suggested representation of spin states.
description: 10 pages
title: Characterization of Biofilms in a Synthetic Rhizosphere Using Hollow Fiber Root-Mimetic Systems
Creators: name: Bonebrake, Michelle
Publisher: name: Utah State University
Year: 2019

description: The area around a plant’s roots hosts a complex and diverse microbial community. This environment can include a large number of bacteria that live on the surface of the root and benefit from the nutrients that the roots exude into the soil. These microbes can in turn be beneficial to the plant by protecting the roots from harmful fungi or stressful environmental conditions such as drought. In this thesis, several root-mimetic systems (RMSs) were developed for the study and growth of plant-beneficial bacteria in the laboratory environment. The RMS uses a porous hollow fiber used in hemodialysis as a surface for microbial growth. This fiber can either be draped into liquid nutrients or nutrients can be pumped through the hollow fiber with seepage through pores in the fiber to the outside. These systems are simple but well-controlled models of how a root would feed a bacterial community. The RMSs can be used to study how bacteria receiving nutrients through the RMS react to external factors, and if the bacterial response varies with nutrients received through the fiber. One such application is to study how plant colonizing microbes react to stressors like nanoparticle technology, a growing part of the fertilizer industry.

Several different commercial hollow fiber membranes were explored as possible surfaces for microbe attachment. A synthetic polysulfone / polyvinylpyrrolidone hollow fiber membrane, treated with bleach to change the surface properties, was found to be a favorable surface for attachment of the beneficial root-colonizing microbe Pseudomonas chlororaphis O6 (PcO6). In addition to hollow fiber membrane chemistry, the nutrient composition delivered to the bacteria strongly influenced surface colonization and biofilm formation. Thus, using the hollow fiber root model, bacteria can be studied with respect to their responses to changes in nutrient composition as well as their response to stressors such as nanoparticles. Contrasted with studying bacteria on a living root, the model systems developed in this thesis allow microbes to be investigated without the added complexity of unknown variations in the nutrients that the roots pump into the soil.
title: Ars emblematica – a late medieval wooden dish found in Elbląg/Elbing
Creators: name: Nawrolska, Grażyna
name: Wachowski, Krzysztof
name: Witkowski, Jacek
Publisher: name: University Library Heidelberg
Year: 2016

description: Ein bemalter, spätmittelalterlicher Holzteller, der in der Hansestadt Elbląg (woj. warmińsko-mazurskie) ausgegraben wurde, stellt ein einzigartiges Exemplar seiner Gattung in Europa dar. Eine geschnitzte und mit schwarzer Farbe bemalte Szene zeigt einen Streit zwischen Tricktrack-Spielern. Ähnliche Szenen, die böse Charaktere darstellen, waren in der westlichen mittelalterlichen Kunst verbreitet. Meist gehörten sie zur Ikonographie des Jüngsten Gerichts, der Zehn Gebote oder der Sieben Todsünden. Im östlichen Mitteleuropa erschienen solche moralisierenden Darstellungen meist auf Ofenkacheln. Eines der am weitesten verbreiteten Motive ist ein Streit, bei dem sich die beiden Kontrahenden »an den Haaren reißen«. Aus stilistischen Gründen kann der untersuchte Teller in die Mitte des 14. Jahrhunderts datiert werden. Anhand des Dekors ist wohl eine Herstellung in den Niederlanden anzunehmen.
description: The painted wooden late medieval dish unearthed in the Hanseatic town Elbląg (woj. warmińsko-mazurskie), proves to be one of the most unique finds of its kind in Europe. The scene engraved and filled with black paint on its surface depicts a quarrel between tric-trac players. Similar scenes, showing evil characters were popular in western medieval art. Usually they belong to the iconographic cycles of the Last Judgement, the Ten Commandments or the Seven Deadly Sins. In eastern Central Europe, similar moralising depictions appear mainly on stove tiles. One of the most popular motifs in this case is a »hair tearing« fight between two adversaries. The analysed dish was dated to the mid-14th century on stylistic grounds. Its decoration almost certainly indicates its original production in the Netherlands.
Percolation of a general network of networks
Creators: name: Gao, Jianxi
name: Buldyrev, Sergey V.
name: Stanley, H. Eugene
name: Xu, Xiaoming
name: Havlin, Shlomo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Percolation theory is an approach to study vulnerability of a system. We develop analytical framework and analyze percolation properties of a network composed of interdependent networks (NetONet). Typically, percolation of a single network shows that the damage in the network due to a failure is a continuous function of the fraction of failed nodes. In sharp contrast, in NetONet, due to the cascading failures, the percolation transition may be discontinuous and even a single node failure may lead to abrupt collapse of the system. We demonstrate our general framework for a NetONet composed of $n$ classic Erdős-Rényi (ER) networks, where each network depends on the same number $m$ of other networks, i.e., a random regular network of interdependent ER networks. In contrast to a \emph{treelike} NetONet in which the size of the largest connected cluster (mutual component) depends on $n$, the loops in the RR NetONet cause the largest connected cluster to depend only on $m$. We also analyzed the extremely vulnerable feedback condition of coupling. In the case of ER networks, the NetONet only exhibits two phases, a second order phase transition and collapse, and there is no first phase transition regime unlike the no feedback condition. In the case of NetONet composed of RR networks, there exists a first order phase transition when $q$ is large and second order phase transition when $q$ is small. Our results can help in designing robust interdependent systems.
description: 31 pages, 12 figures
title: Ceramic fragments of lanterns in context: finds from the western canabae legionis from Nijmegen (prov. Gelderland)
Creators: name: Höpken, Constanze
name: Niemeijer, Ryan
Publisher: name: University Library Heidelberg
Year: 2016

description: Bei den Ausgrabungen in den Nijmegener canabae wurden Reste von mindestens vier sogenannten Schornsteintöpfen bzw. Lichthäuschen gefunden. Es handelt sich um Fragmente eines lokal produzierten, gedrehten, runden Typus, der in Britannien und entlang des Rhein- und Donau-Limes verbreitet ist. Wegen fehlender Sekundär- und Gebrauchsspuren, die Hinweise auf die Funktion dieser Objekte geben könnten, sollen hier die Kontexte für eine Interpretation ausgewertet werden. Sofern Informationen zu Lichthäuschen-Fundkontexten bekannt sind, liegen diese in Heiligtümern, Bädern, Landhäusern und Werkstätten. In Nijmegen weisen die Fundkontexte auf eine Benutzung möglicherweise in Heiligtümern und in Bädern im Zusammenhang mit einer Hypokaustanlage hin. Letztendlich ist weiterhin zu prüfen, ob Lichthäuschen als Anzeiger für Bäder und Heiligtümer zu werten sind.
description: Remains of at least four so-called chimney pots or lanterns were excavated in the canabae of Nijmegen. They are fragments of a locally produced wheel-turned and round type, distributed in Britain and along the Rhine and Danube limes. So far, there are no traces of its use indicating its function; therefore, it is sought to analyse the find context of the lanterns. In the cases of available information on find contexts they come from sanctuaries, bath houses, villae rusticae and workshops. In Nijmegen the find contexts possibly indicate a use in sanctuaries and baths at hypocaust systems. Finally, it remains to examine whether lanterns can be interpreted as evidence for bath houses and sanctuaries.
Randzonenbeeinflussung durch die Rekonturierung komplexer Investitionsgüter aus Ti-6Al-4V
Creators: name: Nespor, Dennis
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Re-contouring
subject: ball end milling
subject: surface integrity
subject: surface topography
subject: residual stress
subject: process forces
subject: Regeneration
subject: Rekonturierung
subject: Kugelkopffräsen
subject: Randzoneneigenschaften
subject: Oberflächentopographie
subject: Eigenspannungen
subject: Prozesskräfte
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Gesteuerte laserinduzierte Mikrostrukturen zur Beeinflussung des Reflexionsgrades von Halbleitern
Creators: name: Schütz, Viktor
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Structuring
subject: photovoltaics
subject: process parallelization
subject: external electromagnetic fields
subject: Strukturierung
subject: Laser
subject: Photovoltaik
subject: Prozessparallelisierung
subject: externe elektromagnetische Felder
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: [no abstract]
Abelian quotients of the string link monoid
Creators: name: Meilhan, Jean-Baptiste
name: Yasuhara, Akira
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: The set SL(n) of n-string links has a monoid structure, given by the stacking product. When considered up to concordance, SL(n) becomes a group, which is known to be abelian only if n=1. In this paper, we consider two families of equivalence relations which endow SL(n) with a group structure, namely the C_k-equivalence introduced by Habiro in connection with finite type invariants theory, and the C_k-concordance, which is generated by C_k-equivalence and concordance. We investigate under which condition these groups are abelian, and give applications to finite type invariants.
description: 20 pages
title: Preparing for a sustained volcanic degassing episode in Auckland
Creators: name: Stewart, Carol
name: Smid, E
name: Charlton, D
name: Leonard, Graham S.
name: Tomašek, I
name: Wilson, T. M.
name: Talbot, N.
Publisher: name: GNS Science
Year: 2019

description: The Auckland metropolitan area is built upon the intraplate Auckland Volcanic Field (AVF), which poses a considerable threat to the highly exposed people and infrastructure of Auckland. An important component of evaluating and quantifying volcanic risks to Auckland has been the development of AVF eruption scenarios. These are useful for purposes such as assessing impacts on buildings and critical infrastructure and providing decision support for emergency managers and civil authorities. However, while several scenario-based studies have noted the potential for volcanic gas emissions to cause impacts on downwind populations, infrastructure and the built environment, this important volcanic hazard has so far received little systematic attention and there have been no attempts at quantitation. The purpose of this report is to consider issues arising from volcanic gas emissions in the event of a future AVF eruption. Here we introduce volcanic gases and discuss their hazards to human health, infrastructure, the built environment and aviation; we describe in detail three recent eruption case studies where gas impacts have been important; we describe the current arrangements for monitoring the relevant air pollutants in Auckland; we estimate fluxes of sulfur dioxide (SO2) for selected AVF eruption scenarios and put them in context alongside known anthropogenic sources of SO2 nationally, regionally and locally; and finally we identify key issues and knowledge gaps and provide recommendations on how these might be addressed. Estimates of gas emission rates for AVF eruption scenarios B and E suggest average and peak SO2 fluxes of ~650 t/d and ~1200 t/d. These fluxes are similar to the range of SO2 fluxes recorded for White Island volcano during 2019 and exceed total daily SO2 fluxes from all known anthropogenic sources in New Zealand by factors of 5-10. In relation to regional and local sources of SO2, new volcanic sources are expected to be even more dominant. A new AVF eruption will therefore be a major new air pollution point source in metropolitan Auckland. Impacts will depend on the following factors: vent location, meteorological conditions, populations and assets exposed, plume height and timing. For effective management of a future AVF eruption, we recommend developing improved capability for gas dispersion modelling and forecasting, improved capacity to forecast impacts of acidic volcanic gases on infrastructure and the built environment, and a multipronged approach to managing impacts on public health. (auth)
A square from similar rectangles
Creators: name: Dorichenko, Sergey
name: Skopenkov, Mikhail
Publisher: name: arXiv
Year: 2013
Subjects: subject: History and Overview (math.HO)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: In the present popular science paper we determine when a square can be dissected into rectangles similar to a given rectangle. The approach to the question is based on a physical interpretation using electrical networks. Only secondary school background is assumed in the paper.
description: 5 pages, 5 figures, in Russian
title: Teachers' Conceptions of Mathematics and Intelligent Tutoring System Use
Creators: name: Glaze, Andrew R.
Publisher: name: Utah State University
Year: 2019

description: The purpose of this mixed-methods study was to investigate the relationship between teachers’ conceptions of mathematics and their use of intelligent tutoring systems for mathematics instruction. Intelligent tutoring systems are adaptive computer programs which administer mathematics instruction to students based on their cognitive state. A conception is a mixture of beliefs and knowledge. The participants in this study were 93 junior high school mathematics teachers from three school districts in the Midwest. Data were gathered using a two-part online survey. The first part of the survey contained questions about their use of intelligent tutoring systems, graphing calculators, Desmos and dynamic geometry software. The second part of the survey contained Likert questions from the teachers’ version of the Conceptions of Mathematics Inventory. Desmos is a website providing interactive classroom activities and a user-friendly graphing calculator. Dynamic geometry software is a class of interactive geometry programs.

The quantitative analysis revealed no statistically significant interactions between teachers’ conception scores and intelligent tutoring system use, or between teachers’ conception scores and how intelligent tutoring systems were used. There were statistically significant interactions between teachers’ conception scores and their use of graphing calculators, Desmos, and dynamic geometry software. The qualitative analysis revealed that teachers used intelligent tutoring systems for differentiation. Teachers used graphing calculators, Desmos, and dynamic geometry software for visual, computational, and exploratory purposes. Teachers exclusively using intelligent tutoring systems to incorporate technology should also incorporate technology which promotes student exploration.
Below-Cutoff Propagation in Metamaterial-Lined Circular Waveguides
Creators: name: Pollock, Justin G.
name: Iyer, Ashwin K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: This paper investigates the propagation characteristics of circular waveguides whose interior surface is coated with a thin metamaterial liner possessing dispersive, negative, and near-zero permittivity. A field analysis of this system produces the dispersion of complex modes, and reveals in detail intriguing phenomena such as backward-wave propagation below the unlined waveguide's fundamental-mode cutoff, resonant tunneling of power, field collimation, and miniaturization. It is shown how the waveguide geometry and metamaterial parameters may be selected to engineer the lined waveguide's spectral response. Theoretical dispersion and transmission results are closely validated by full-wave simulations.
description: 8 pages, 8 figures
Theoretical Treatments of the Bound-Free Contribution and Experimental Best Practice in X-ray Thomson Scattering from Warm Dense Matter
Creators: name: Mattern, Brian A.
name: Seidler, Gerald T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: By comparison with high-resolution synchrotron x-ray experimental results, we assess several theoretical treatments for the bound-free (core-electron) contribution to x-ray Thomson scattering (i.e., also known as nonresonant inelastic x-ray scattering). We identify an often overlooked source of systematic error in the plane- wave form factor approximation (PWFFA) used in the inference of temperature, ionization state, and free electron density in some laser-driven compression studies of warm dense matter. This error is due to a direct violation of energy conservation in the PWFFA. We propose an improved practice for the bound-free term that will be particularly relevant for XRTS experiments performed with somewhat improved energy resolution at the National Ignition Facility or the Linac Coherent Light Source. Our results raise important questions about the accuracy of state variable determination in XRTS studies, given that the limited information content in low-resolution XRTS spectra does not strongly constrain the models of electronic structure being used to fit the spectra.
Tibetan woman in Lhasa wearing apron and jewelry, looking to her right
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2020
Subjects: Tibetans
Women
Dress accessories

description: Photo of Karma Decchen (wife of Gegen Dorje Tharchin) at a younger age, or her younger sister, taken in front of altar in home in Lhasa, Tibet.
The restricted primitive model of ionic fluids with nonadditive diameters
Creators: name: Fantoni, Riccardo
name: Pastore, Giorgio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The restricted primitive model with nonadditive hard-sphere diameters is shown to have interesting and peculiar clustering properties. We report accurate calculations of the cluster concentrations. Implementing efficient and ad hoc Monte Carlo algorithms we determine the effect of nonadditivity on both the clustering and the gas-liquid binodal. For negative nonadditivity, tending to the extreme case of completely overlapping unlike ions, the prevailing clusters are made of an even number of particles having zero total charge. For positive nonadditivity, the frustrated tendency to segregation of like particles and the reduced space available to the ions favors percolating clusters at high densities.
description: 6 pages, 3 figures
IK und KI – ein Herz und eine Seele : Ein Streit über künstliche Intelligenz im Kontext von Informationskompetenz
Creators: name: Burblies, Christine
name: Pianos, Tamara
Publisher: name: Berlin : de Gruyter
Year: 2019
Subjects: subject: Artificial Intelligence
subject: Künstliche Intelligenz
subject: Informationskompetenz
subject: Bibliothek
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::020 | Bibliotheks- und Informationswissenschaft

description: Ein Streit über künstliche Intelligenz im Kontext von Informationskompetenz.
Resonanzanalyse und Resonanzidentifikation mittels Eigenmoden
Creators: name: Benz, Jan
name: Hansen, Jan
name: Frei, Stephen
Publisher: name: Aachen : Apprimus
Year: 2022
Subjects: subject: EMV
subject: Verträglichkeit
subject: Elektromagnetik
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Für die Störaussendung und Störfestigkeit eines elektronischen Systems ist oftmals dessen Resonanzverhalten ausschlaggebend [1]. Es ist bekannt, dass sich Eigenmoden zum Auffinden von Resonanzkreisen eignen [2], [3]. In komplexen Elektroniken (die durch Netzwerke mit zahlreichen funktionalen und parasitären Schaltungselementen beschrieben werden können) ist es jedoch meist sehr aufwändig, den Anteil der verschiedenen Elemente an einer Resonanz zu bestimmen. Die vorgestellte Methodik zeigt, dass sich über eine modale Energie- und Leistungsberechnung der Beitrag dieser Elemente zu Resonanzen und den zugehörigen Gütefaktoren direkt berechnen lässt. In Kombination mit der Stromverteilung der Eigenmoden kann zwischen Elementen unterschieden werden, welche nur den Strom der Resonanz übertragen, und solchen, die ursächlich für die Resonanz sind, bzw. diese bedämpfen. Wird die Energie/Leistung anteilig bzgl. der Gesamtenergie/-leistung angegeben, lässt sich der Einfluss jedes Elements auf die Resonanzfrequenz und den Gütefaktor angeben. Die wesentlich an einer Resonanz beteiligten Elemente lassen sich direkt identifizieren und ermöglichen ein besseres Verständnis und das Entwickeln von Maßnahmen gegen diese Resonanz.
Hydrodynamic thermoelectric transport in Corbino geometry
Creators: name: Li, Songci
name: Levchenko, Alex
name: Andreev, A. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study hydrodynamic electron transport in Corbino graphene devices. Due to the irrotational character of the flow, the forces exerted on the electron liquid are expelled from the bulk. We show that in the absence of Galilean invariance, force expulsion produces qualitatively new features in thermoelectric transport: (i) it results in drops of both voltage and temperature at the system boundaries and (ii) in conductance measurements in pristine systems, the electric field is not expelled from the bulk. We obtain thermoelectric coefficients of the system in the entire crossover region between charge neutrality and high electron density regime. The thermal conductance exhibits a sensitive Lorentzian dependence on the electron density. The width of the Lorentzian is determined by the fluid viscosity. This enables determination of the viscosity of electron liquid near charge neutrality from purely thermal transport measurements. In general, the thermoelectric response is anomalous: it violates the Matthiessen's rule, the Wiedemann-Franz law, and the Mott relation.
description: 9 pages, 3 figures