cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonlinear Force-Free Magnetic Field Fitting to Coronal Loops with and without Stereoscopy
Creators: name: Aschwanden, Markus J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We developed a new nonlinear force-free magnetic field (NLFFF) forward-fitting algorithm based on an analytical approximation of force-free and divergence-free NLFFF solutions, which requires as input a line-of-sight magnetogram and traced 2D loop coordinates of coronal loops only, in contrast to stereoscopically triangulated 3D loop coordinates used in previous studies. Test results of simulated magnetic configurations and from four active regions observed with STEREO demonstrate that NLFFF solutions can be fitted with equal accuracy with or without stereoscopy, which relinquishes the necessity of STEREO data for magnetic modeling of active regions (on the solar disk). The 2D loop tracing method achieves a 2D misalignment of $μ_2=2.7^\circ\pm 1.3^\circ$ between the model field lines and observed loops, and an accuracy of $\approx 1.0%$ for the magnetic energy or free magnetic energy ratio. The three times higher spatial resolution of TRACE or SDO/AIA (compared with STEREO) yields also a proportionally smaller misalignment angle between model fit and observations. Visual/manual loop tracings are found to produce more accurate magnetic model fits than automated tracing algorithms. The computation time of the new forward-fitting code amounts to a few minutes per active region.
description: ApJ, Febr 2013, (in press), 11 Figures
Formae reformandae - For a reorganisation of verb form annotation in Universal Dependencies illustrated by the specific case of Latin
Creators: name: Cecchini, Flavio Massimiliano
Publisher: name: Zenodo
Year: 2023
Subjects: Morphosyntax
Verbs
Typology
Latin

description: Slides for the presentation given at the Fifth Workshop on Universal Dependencies (UDW, SyntaxFest 2021), March 23rd, 2022, online/Sofia, Bulgaria.
description: {"references": ["https://aclanthology.org/2021.udw-1.1/"]}
Superradiance from a Charged Dilaton Black Hole
Creators: name: Shiraishi, Kiyoshi
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the behavior of the wave function of charged Klein-Gordon field around a charge dilaton black hole. The rate of spontaneous charge loss is estimated for large black hole case.
description: 6 pages, no figure
Genetische und molekularbiologische Untersuchungen zur Hitzestresstoleranz bei Tomaten
Creators: name: Musmann, Dörthe
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Tomato
subject: heat stress
subject: climate factors
subject: gene expression
subject: anthers
subject: candidate gene
subject: Tomate
subject: Solanum lycopersicum
subject: Hitzestress
subject: Klimafaktoren
subject: Genexpression
subject: Antheren
subject: QTL
subject: Kandidatengen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Quantifying modeling uncertainties when combining multiple gravitational-wave detections from binary neutron star sources
Creators: name: Kunert, Nina
name: Pang, Peter T. H.
name: Tews, Ingo
name: Coughlin, Michael W.
name: Dietrich, Tim
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: With the increasing sensitivity of gravitational-wave detectors, we expect to observe multiple binary neutron-star systems through gravitational waves in the near future. The combined analysis of these gravitational-wave signals offers the possibility to constrain the neutron-star radius and the equation of state of dense nuclear matter with unprecedented accuracy. However, it is crucial to ensure that uncertainties inherent in the gravitational-wave models will not lead to systematic biases when information from multiple detections are combined. To quantify waveform systematics, we perform an extensive simulation campaign of binary neutron-star sources and analyse them with a set of four different waveform models. Based on our analysis with about 38 simulations, we find that statistical uncertainties in the neutron-star radius decrease to $\pm 250\rm m$ ($2\%$ at $90\%$ credible interval) but that systematic differences between currently employed waveform models can be twice as large. Hence, it will be essential to ensure that systematic biases will not become dominant in inferences of the neutron-star equation of state when capitalizing on future developments.
description: 9 pages, 5 figures
Radial velocity signatures of Zeeman broadening
Creators: name: Reiners, Ansgar
name: Shulyak, Denis
name: Anglada-Escude, Guillem
name: Jeffers, Sandra V.
name: Morin, Julien
name: Zechmeister, Mathias
name: Kochukhov, Oleg
name: Piskunov, Nikolai
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Stellar activity signatures such as spots and plage can significantly limit the search for extrasolar planets. Current models of activity-induced radial velocity (RV) signals focused on the impact of temperature contrast in spots predicting the signal to diminish toward longer wavelengths. On the other hand, the relative importance of the Zeeman effect on RV measurements should grow with wavelength, because the Zeeman displacement itself grows with λ, and because a magnetic and cool spot contributes more to the total flux at longer wavelengths. We model the impact of active regions on stellar RV measurements including both temperature contrast in spots and Zeeman line broadening. We calculate stellar line profiles using polarized radiative transfer models including atomic and molecular Zeeman splitting from 0.5 to 2.3\mum. Our results show that the amplitude of the RV signal caused by the Zeeman effect alone can be comparable to that caused by temperature contrast. Furthermore, the RV signal caused by cool and magnetic spots increases with wavelength. We also calculate the RV signal due to variations in average magnetic field strength from one observation to the next, but find it unlikely that this can significantly influence the search for extrasolar planets. As an example, we derive the RV amplitude of the active M dwarf AD Leo as a function of wavelength using data from the HARPS spectrograph. The RV signal does not diminish at longer wavelengths but shows evidence for the opposite behavior. We conclude that the RV signal of active stars does not vanish at longer wavelength but sensitively depends on the combination of spot temperature and magnetic field; in active low-mass stars, it is even likely to grow with wavelength.
description: 12 pages, accepted by A&A, abstract shortened
Synthese und Charakterisierung von Polymernanopartikeln auf Basis von Polycrylaten
Creators: name: Misiun, Anna Karolina
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Crosslinking emulsion copolymerization
subject: polymernanoparticles
subject: nanocomposites
subject: Vernetzende Emulsionscopolymerisation
subject: Polymernanopartikel
subject: Nanokomposite
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
Favolus scaber Berk. & Broome, J. Linn. Soc., Bot.
Creators: name: Karunarathna, Samantha C.
name: Priyashantha, K Hasith
name: Tibpromma, Saowaluck
name: Galappaththi, Mahesh C. A.
name: Premarathne, Bhagya M.
name: Wijayawardene, Nalin N.
name: Wimalasena, Madhara K.
name: Jayalal, Udeni
name: Wickramanayake, Kawmini D.
name: Dangalla, Hasanka
name: Jayathunga, Hashini
name: Brahmanage, Rashika S.
name: Weerakoon, Gothamie
name: Ariyawansa, Kahandawa G. S. U.
name: Yapa, Neelamanie
name: Nanayakkara, Chandrika M.
name: Ediriweera, Surani
name: Fan, Xin-Lei
name: Kirk, Paul M.
name: Zhang, Gui-Qing
name: Ediriweera, Aseni
name: Bhat, Jayarama
name: Dawoud, Turki M.
name: Kumara, Wasantha
name: Deng, Chun Ying
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Polyporales
Polyporaceae
Favolus
Favolus scaber

description: F.  scaber Berk. & Broome, J. Linn. Soc., Bot. 14 (no. 73): 57 (1873) [1875]/IF: 241279
 Current name: Favolus tenuiculus P. Beauv., Fl.Oware 1(8): 74[tab. 43,fig.2] (1806) (New classification: Polyporaceae, Polyporales, Agaricomycetes)
Typification Details: K (M), Gardner 618; K (M), Gardner 46, On dead wood, Sri Lanka
Reference: Berkeley & Broome (1873)
description: Published as part of Karunarathna, Samantha C., Priyashantha, K Hasith, Tibpromma, Saowaluck, Galappaththi, Mahesh C. A., Premarathne, Bhagya M., Wijayawardene, Nalin N., Wimalasena, Madhara K., Jayalal, Udeni, Wickramanayake, Kawmini D., Dangalla, Hasanka, Jayathunga, Hashini, Brahmanage, Rashika S., Weerakoon, Gothamie, Ariyawansa, Kahandawa G. S. U., Yapa, Neelamanie, Nanayakkara, Chandrika M., Ediriweera, Surani, Fan, Xin-Lei, Kirk, Paul M., Zhang, Gui-Qing, Ediriweera, Aseni, Bhat, Jayarama, Dawoud, Turki M., Kumara, Wasantha & Deng, Chun Ying, 2023, Checklist, typification details, and nomenclature status of Basidiomycota, originally described from Sri Lanka, pp. 1-86 in Phytotaxa 621 (1) on page 53, DOI: 10.11646/phytotaxa.621.1.1, http://zenodo.org/record/10065102
Gluon saturation scale from the KGBJS equation
Creators: name: Kutak, Krzysztof
name: Toton, Dawid
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The CCFM equation and its extended form with a quadratic term (KGBJS equation) are solved with fixed and running coupling constant. The solution of the KGBJS equation is compared to gluon densities resulting from the CCFM and BK equations. As the saturation scale $Q_s$ now becomes available as a function of the hard scale $p$ we observe that low values of $p$ impede its growth with $\frac 1 x$. Also, at values much larger than partons transversal momentum the saturation effects become independent on the hard scale what we call liberation of saturation scale. We also introduce the hard-scale-related saturation scale $P_s$ and investigate its energy dependence. We observe that the new scale as a function of $x$ decreases starting from the value of transversal momentum of gluon.
The framework dikolan (Digital competencies for teaching in science education) as basis for the self-assessment tool dikolan-grid
Creators: name: Kotzebue, Lena Von
name: Meier, Monique
name: Finger, Alexander
name: Kremser, Erik
name: Huwer, Johannes
name: Thoms, Lars-Jochen
name: Becker, Sebastian
name: Bruckermann, Till
name: Thyssen, Christoph
Publisher: name: Basel : MDPI AG
Year: 2021
Subjects: subject: Science education
subject: Self-report measure
subject: Student teachers
subject: Technological pedagogical content knowledge
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: For the planning and implementation of lessons with digital technologies, a subject-specific technology-related professional competence of teachers is of central importance. However, the competency frameworks developed so far remain in a general perspective and do not explicitly address subject-specific issues. Furthermore, digital competencies are predominantly measured with subject-unspecific self-assessment instruments, as subject-specific operationalizations for this area are not yet available in a differentiated form. In this article, the framework for Digital Competencies for Teaching in Science Education (DiKoLAN), a subject-specific framework for pre-service science teachers, is introduced, on the one hand, and, on the other hand, first results of a self-assessment tool based on the framework are described. DiKoLAN defines competency areas highly specific to science, as well as more general competency areas that include aspects common to all subjects. Each competency area is described by competency expectations, which, in turn, are structured with reference to the four technology-related dimensions of the TPACK framework (i.e., Technological and Pedagogical Content Knowledge) and three levels of performance (Name, Describe, Use/Apply). Derived from DiKoLAN, a corresponding self-assessment instrument (DiKoLAN-Grid) was developed and empirically tested for the two competency areas, (n = 118) and Information Search and Evaluation (n = 90), in biology student teachers. By means of path models, tendencies regarding structural correlations of the four components Special Tools (TK), Content-specific Context (TCK), Methods and Digitality (TPK), and Teaching (TPACK) are presented for both competency areas and discussed, as well as in comparison to previously conducted, subject-unspecific surveys. © 2021, MDPI. All rights reserved.
Nanostrukturierte Graphendevices
Creators: name: Müller, André
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Graphene
subject: quantum dot
subject: strain engineering
subject: Graphen
subject: Coulomb-Blockade
subject: Quantenpunkt
subject: thermischer Stress
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
ATRIUM Data Management Plan Initial Version
Creators: name: Black, Megan
name: Raciti, Marco
name: Gouzi, Francoise
Publisher: name: Zenodo
Year: 2024
Subjects: subject: Digital humanities
subject: Humanities
subject: FOS: Humanities
subject: Arts
subject: data management
subject: research infrastructure
subject: open science

description: As Advancing Frontier Research In the Arts and Humanities (ATRIUM) is a project that exploits and strengthens complementarities between four leading European infrastructures (DARIAH, ARIADNE, CLARIN and OPERAS), data management plays a crucial role in the project’s conception. Namely, ATRIUM is dedicated to improving the metadata quality of existing catalogues and repositories, consolidating service portfolios and promoting the use of standards and FAIR (Findable, Accessible, Interoperable, Reusable) principles. As such, many of ATRIUM’s tasks and work packages are directly designed to accommodate and facilitate FAIR data. With the aim to make a groundbreaking contribution to the consolidation and expansion of services to cover all phases of the research data lifecycle, ATRIUM also follows robust data management practices aligned with Open Science.
Universality of 2d causal dynamical triangulations
Creators: name: Ambjorn, J.
name: Ipsen, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The formalism of Causal Dynamical Triangulations (CDT) attempts to provide a non-perturbative regularization of quantum gravity, viewed as an ordinary quantum field theory. In two dimensions one can solve the lattice theory analytically and the continuum limit is universal, not depending on the details of the lattice regularization.
description: 11 pages
Untersuchung der Magnetotransporteigenschaften von hochbeweglichen zweidimensionalen Elektronengasen
Creators: name: Bockhorn, Lina
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Quantum Hall effect
subject: negative magnetoresistance
subject: electron-electron interaction
subject: Quanten-Hall Effekt
subject: negativer differentieller Magnetowiderstand
subject: Elektron-Elektron Wechselwirkung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
title: Manfred K. H. Eggert / Stefanie Samida: Ur- und Frühgeschichtliche Archäologie, Tübingen / Basel 2009
Creators: name: Fernández-Götz, Manuel A.
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Manfred K. H. Eggert und Stefanie Samida, Ur- und Frühgeschichtliche Archäologie. UTB Basics 3254. A. Francke Verlag, Tübingen und Basel 2009. IX, 326 Seiten.
Two-wire Terahertz Fibers with Porous Dielectric Support
Creators: name: Markov, Andrey
name: Skorobogatiy, Maksim
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A novel plasmonic THz fiber is described that features two metallic wires that are held in place by the porous dielectric cladding functioning as a mechanical support. This design is more convenient for practical applications than a classic two metal wire THz waveguide as it allows direct manipulations of the fiber without the risk of perturbing its core-guided mode. Not surprisingly, optical properties of such fibers are inferior to those of a classic two-wire waveguide due to the presence of lossy dielectric near an inter-wire gap. At the same time, composite fibers outperform porous fibers of the same geometry both in bandwidth of operation and in lower dispersion. Finally, by increasing cladding porosity one can consistently improve optical properties of the composite fibers.
title: Beiträge zu den Neufunden 1999–2006 aus der spätlatènezeitlichen Großsiedlung bei Altenburg, Gem. Jestetten, Kreis Waldshut: Literaturverzeichnis
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
Hemiasterellidae LENDENFELD 1889
Creators: name: Morrow, Christine
name: Cárdenas, Paco
name: Boury-Esnault, Nicole
name: Picton, Bernard
name: Mccormack, Grace
name: Soest, Rob Van
name: Collins, Allen
name: Redmond, Niamh
name: Maggs, Christine
name: Sigwart, Julia
name: Allcock, Louise A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Porifera
Demospongiae
Tethyida
Hemiasterellidae

description: FAMILY HEMIASTERELLIDAE LENDENFELD, 1889
Diagnosis (emended from Hooper, 2002b): Encrusting, cup-shaped, arborescent or branching growth forms; megascleres styles, oxea or both enclosed within axially compressed spongin fibres or basally compressed in encrusting taxa, and plumose to plumo-reticulate extra-axial branches or sometimes with a definite axis. Microscleres are euasters, usually with microspination.
Type genus: Hemiasterella Carter, 1879.
Included genera: In WPD, Van Soest et al. (2018) listed four genera: Adreus Gray, 1867; Axos Gray, 1867; Hemiasterella Carter, 1879; and Leptosastra Topsent, 1904.
description: Published as part of Morrow, Christine, Cárdenas, Paco, Boury-Esnault, Nicole, Picton, Bernard, Mccormack, Grace, Soest, Rob Van, Collins, Allen, Redmond, Niamh, Maggs, Christine, Sigwart, Julia & Allcock, Louise A., 2019, Integrating morphological and molecular taxonomy with the revised concept of Stelligeridae (Porifera: Demospongiae), pp. 31-81 in Zoological Journal of the Linnean Society 187 on page 75
The Microstructure of Tool Steel after Low Temperature Ion Nitriding
Creators: name: Zagonel, L. F.
name: Mittemeijer, E. J.
name: Alvarez, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The microstructural development in H13 tool steel upon nitriding by an ion beam process was investigated. The nitriding experiments were performed at a relatively low temperature of about 400°C and at constant ion beam energy (400 eV) of different doses in a high-vacuum preparation chamber; the ion source was fed with high purity nitrogen gas. The specimens were characterized by X-ray photoelectron spectroscopy (XPS), electron probe microanalysis (EPMA), scanning and transmission electron microscopy (SEM and TEM), and grazing incidence and Bragg-Brentano X-ray diffractometry. In particular, the influence of the nitrogen surface concentration on the development of the nitrogen concentration-depth profile and the possible precipitation of alloying element nitrides are discussed.
description: 14 pages, 11 figures
Exact BPS bound for noncommutative baby Skyrmions
Creators: name: Domrin, Andrei V.
name: Lechtenfeld, Olaf
name: Linares, Román
name: Maceda, Marco
Publisher: name: Amsterdam : Elsevier B.V.
Year: 2013
Subjects: subject: Physics
subject: Abelian group
subject: Grassmannian
subject: Commutative property
subject: Sigma model
subject: Quantum electrodynamics
subject: Deformation (mechanics)
subject: Perturbation theory
subject: Quantum mechanics
subject: Noncommutative geometry
subject: Skyrmion
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The noncommutative baby Skyrme model is a Moyal deformation of the two-dimensional sigma model plus a Skyrme term, with a group-valued or Grassmannian target. Exact abelian solitonic solutions have been identified analytically in this model, with a singular commutative limit. Inside any given Grassmannian, we establish a BPS bound for the energy functional, which is saturated by these baby Skyrmions. This asserts their stability for unit charge, as we also test in second-order perturbation theory.
Asymptotic symmetries of scalar electrodynamics and of the abelian Higgs model in Hamiltonian formulation
Creators: name: Tanzi, Roberto
name: Giulini, Domenico
Publisher: name: Berlin ; Heidelberg : Springer
Year: 2021
Subjects: subject: Gauge Symmetry
subject: Global Symmetries
subject: Space-Time Symmetries
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We investigate the asymptotic symmetry group of a scalar field minimally-coupled to an abelian gauge field using the Hamiltonian formulation. This extends previous work by Henneaux and Troessaert on the pure electromagnetic case. We deal with minimally coupled massive and massless scalar fields and find that they behave differently insofar as the latter do not allow for canonically implemented asymptotic boost symmetries. We also consider the abelian Higgs model and show that its asymptotic canonical symmetries reduce to the Poincaré group in an unproblematic fashion. © 2021, The Author(s).
Gamma-rays from nebulae around binary systems containing energetic rotation powered pulsars
Creators: name: Bednarek, W.
name: Sitarek, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We consider nebulae which are created around binary systems containing rotation powered pulsars and companion stars with strong stellar winds. It is proposed that the stellar and pulsar winds have to mix at some distance from the binary system, defined by the orbital period of the companion stars and the velocity of the stellar wind. The mixed pulsar-stellar wind expands with a specific velocity determined by the pulsar power and the mass loss rate of the companion star. Relativistic particles, either from the inner pulsar magnetosphere and/or accelerated at the shocks between stellar and pulsar winds, are expected to be captured and isotropized in the reference frame of the mixed wind. Therefore, they can efficiently comptonize stellar radiation producing GeV-TeV $γ$-rays in the inverse Compton process. We calculate the $γ$-ray spectra expected in such scenario for the two example binary systems: J1816+4510 which is the redback type millisecond binary and LS 5039 which is supposed to contain energetic pulsar. It is concluded that the steady TeV $γ$-ray emission from J1816+4510 should be on the 100 hr sensitivity limit of the planned Cherenkov Telescope Array, provided that $ε\sim 10%$ of the rotational energy lost by the pulsar is transferred to TeV electrons. On the other hand, the comparison of the predicted steady TeV $γ$-ray emission, expected from $γ$-ray binary LS 5039, with the observations of the TeV emission in a low state, reported by the H.E.S.S. Collaboration, allows us to put stringent upper limit on the product of the part of the hemisphere in which the mixed pulsar-stellar wind is confined, $Δ_{\rm mix}$, and the energy conversion efficiency, $ε$, from the supposed pulsar to the TeV electrons injected in this system, $Δ_{\rm mix}\cdot ε<1%$.
description: 10 pages, 2 figures, 3 tables, accepted to MNRAS
Implications of Smallholder Farm Production Diversity for Household Food Consumption Diversity: Insights from Diverse Agro-Ecological and Market Access Contexts in Rural Tanzania
Creators: name: Kissoly, Luitfred
name: Fasse, Anja
name: Grote, Ulrike
Publisher: name: Basel : MDPI
Year: 2018
Subjects: subject: smallholders
subject: farm production diversity
subject: food consumption diversity
subject: seasonal food consumption
subject: Tanzania
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Owing to persistent challenges of food and nutritional insecurity, recent literature has focused on the role diversity of farm production has on food consumption diversity, particularly for smallholder households. Yet, the relationship between farm production diversity and household food consumption diversity remains complex and empirical evidence is, so far, mixed. The present article assesses this relationship using two districts-Kilosa and Chamwino-with contrasting agro-ecological and market contexts in rural Tanzania. These districts represent the majority of farming systems found in Tanzania as well as in several countries within the region. We used household data and employed descriptive as well as multivariate regression analyses. The results indicated a positive role of farm production diversity for food consumption diversity in the district with relatively harsh climatic and agro-ecological characteristics and poor access to markets. Furthermore, increased farm production diversity was generally associated with seasonal food consumption diversity. However, results suggested a lesser role of farm production diversity in the presence of better agro-ecological and market access characteristics. These findings imply that promoting farm production diversity should consider the existing agro-ecological and market characteristics. In addition, achieving increased food consumption diversity among rural households may require effective market related infrastructure and institutions.
The Nature and Normativity of Emotion
Creators: name: Yip, Brandon
Publisher: name: The Australian National University
Year: 2023

description: My dissertation is an exploration of the role of emotion in our moral and social lives. It consists of a series of essays that explore the nature and normativity of emotion structured into two large sections. The first section explores the nature of emotion, where I attempt to provide a philosophical psychology of emotion that explains its centrality to our normative nature. Essentially, I argue that emotions are evaluative perceptions that have a direct modulatory effect on our motivational profile. The second section focuses more on normative questions of emotion. I begin by setting up a framework to approach the question of how to determine when an emotion is fitting. The kinds of emotions and fittingness standards that rightly demand our normative allegiance, I suggest, are those that constitutively secure for us key prudential and moral goods. I then apply some of the lessons gleaned to look at two emotions: shame and disgust. I provide analyses of them and try to elucidate the kind of value that they alert us to and enable. Both shame and disgust, often maligned emotions, play important roles and ought not to be discarded from our moral and social lives.
Pflanzenzüchtung im Gartenbaustudium in den Hochschulen in Deutschland
Creators: name: Grunewaldt, Jürgen
Publisher: name: Quedlinburg : Julius Kühn-Institut, Bundesforschungsinstitut für Kulturpflanzen
Year: 2017
Subjects: subject: innovation
subject: ornamental plants
subject: qualification
subject: specialization
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::600 | Technik::640 | Hauswirtschaft und Familienleben

description: In Deutschland wird Gartenbau an neun Hochschulen, davon sieben für Angewandte – und zwei für Grundlagenwissenschaften, gelehrt. Innerhalb des Agrarstudienganges bieten die Rheinische Friedrich Wilhelms-Universität Bonn und die Universität Hohenheim neben dem Fach Pflanzenzüchtung Module aus dem Fach Gemüse- und Obstbau bzw. Obstbau an. Diese beiden Universitätsstandorte werden daher in die berichtete Analyse einbezogen. Das Angebot im Fach Pflanzenzüchtung in den einzelnen Hochschulen kann an der erzielbaren Anzahl Leistungspunkte (LP’s) bei Wahl entsprechender Module und dem Thema der B.Sc.- und M.Sc.-Arbeit erfasst und verglichen werden. Aus dem Angebot lässt sich weiter ableiten, welchen Anteil das Fach Pflanzenzüchtung an dem gesamten Fächerangebot hat. Dieses ist ein Hinweis auf die Spezialisierungsmöglichkeit im Fach Pflanzenzüchtung in der entsprechenden Hochschule. In den B.Sc. Studiengängen werden, außer in einer Hochschule, Module mit Pflanzenzüchtungsinhalt angeboten. Der Umfang ist mit anderen Fächern vergleichbar und erlaubt, dem klaren Ziel eines B.Sc. Abschlusses entsprechend, eine Spezialisierung in dem Fach Pflanzenzüchtung nicht. Im M.Sc.-Studium können grundlegende, umfassende Erkenntnisse im Fach Pflanzenzüchtung aufgrund des Angebotes nur an den genannten vier Hochschulen für Grundlagenwissenschaften erworben werden. Entscheidend ist dabei eine eigenständig vertretene Professur für Pflanzenzüchtung. Im Studienfach Gartenbau existiert diese nur in der LU Hannover. In den drei anderen Hochschulen wird das Angebot Pflanzenzüchtung aus dem Studiengang Agrarwissenschaften importiert. Traditionell streben Pflanzenzüchter zur weiteren Ausbildung eine Promotion an. Bis die Universitäten für Angewandte Wissenschaften ein Promotionsrecht und die entsprechende Ausstattung erhalten, stehen dafür nur die „alten Universitäten“ in der Verantwortung. Eine sehr prekäre Situation ist bereits bei der Ausbildung des Hochschullehrernachwuchses eingetreten. Aktuell ist es nahezu ausgeschlossen, geeignete Kandidaten/Kandidatinnen für das Fach Pflanzenzüchtung zu finden. Vielfältige Anstrengungen werden von Parteien, Ländern, Hochschulen, wissenschaftlichen Gesellschaften und dem Berufsstand unternommen, um dem Abbau von Lehre und Forschung im Gartenbau und der Gartenbaulichen Pflanzenzüchtung entgegenzutreten. Die Erfolge sind sehr gering und können den sich eher beschleunigenden Abbau von Lehre und Forschung im Gartenbau nicht aufhalten.
Leveraging Sequence Information for Protein Engineering
Creators: name: Saunders, Jake
Publisher: name: The Australian National University
Year: 2023

description: Enzymes have become vital in many industries, from chemical synthesis to food production and textile manufacturing. However, many enzymes are commonly limited by low substrate specificity or a lack of stability, making them rarely suited to industry applications. Protein engineering, often aided by computational algorithms, aims to modify the genetic code to alter the structure and function of an enzyme. This field has seen dramatic growth in the past few decades, showing success in many different applications, including the creation of new biosensors, enzymes used in chemical and pharmaceutical production, and improved enzymes for plastic degradation. Although still in its infancy, this field has yet to reach its true potential. This thesis uses various engineering techniques to improve several enzymes. Following the introduction, the first part of the thesis follows the protein engineering story of enzymes involved in the degradation of PET plastic, specifically MHETase and PET hydrolysing cutinases. The latter part of this thesis focuses on using the bioinformatics and protein engineering technique ancestral sequence reconstruction to design variants of the asparaginyl endopeptidase (AEP) family and N2-(2-carboxyethyl)-arginine synthase (CEAS) that hopefully possess enhanced properties. Chapter 1 introduces the critical information and concepts that this thesis revolves around, providing insight into the protein engineering tools used herein. Chapter 2 explores the protein engineering of MHETase, first characterising a new assay method to detect this enzyme's activity and then using this assay to develop a highly expressible variant to aid in future engineering projects. Chapter 3 investigates the impact that point mutations identified from ancestral sequence reconstruction (ASR) have on the structure of a PET hydrolyse cutinase. Chapter 4 provides a comprehensive overview of the current state of ASR in its applications in protein engineering. Chapter 5 explores the practical application of ASR to identify new variants of the plant AEP family with improved or modified functionality to generate an improved peptide ligation tool for protein and peptide synthesis and engineering. In Chapter 6, we examine the use of ASR on CEAS, an enzyme that exhibits a distinctive catalytic intermediate, to identify ancestors and their mutations that may improve enzyme stability or promiscuity to streamline the chemical synthesis of B-lactone derived antibiotics. Finally, Chapter 7 concludes the thesis by bringing together all the ideas discussed throughout this thesis and discussing recent developments around this project and future aspirations.
Influence of convex and concave curvatures in a coastal dike line on wave run-up
Creators: name: Subramaniam, Suba Periyal
name: Scheres, Babette
name: Schilling, Malte
name: Liebisch, Sven
name: Kerpen, Nils B.
name: Schlurmann, Torsten
name: Altomare, Corrado
name: Schüttrumpf, Holger
Publisher: name: Basel : MDPI AG
Year: 2019
Subjects: subject: Curved dike
subject: DualSPHysics
subject: OpenFOAM
subject: Physical model tests
subject: Wave run-up
subject: Coastal engineering
subject: Levees
subject: Mesh generation
subject: Numerical models
subject: Underwater foundations
subject: Center of curvature
subject: Mesh-based modeling
subject: Physical model test
subject: Planning and design
subject: Structural parameter
subject: Wave runup
subject: Hydraulic structures
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk

description: Due to climatic change and the increased usage of coastal areas, there is an increasing risk of dike failures along the coasts worldwide. Wave run-up plays a key role in the planning and design of a coastal structure. Coastal engineers use empirical equations for the determination of wave run-up. These formulae generally include the influence of various hydraulic, geometrical and structural parameters, but neglect the effect of the curvature of coastal dikes on wave run-up and overtopping. The scope of this research is to find the effects of the dike curvature on wave run-up for regular wave attack by employing numerical model studies for various dike-opening angles and comparing it with physical model test results. A numerical simulation is carried out using DualSPHysics, a mesh-less model and OpenFOAM, a mesh-based model. A new influence factor is introduced to determine the influence of curvature along a dike line. For convexly curved dikes (αd = 210° to 270°) under perpendicular wave attack, a higher wave run-up was observed for larger opening angles at the center of curvature whereas for concavely curved dikes (αd = 90° to 150°) under perpendicular wave attack, wave run-up increases at the center of curvature as the opening angle decreases. This research aims to contribute a more precise analysis and understanding the influence of the curvature in a dike line and thus ensuring a higher level of protection in the future development of coastal structures.
Chemical Precipitation Synthesis of Ferric Chloride Doped Zinc Sulphide Nanoparticles and Their Characterization Studies
Creators: name: Theivasanthi, T.
name: Kartheeswari, N.
name: Alagar, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nanoparticles of Ferric Chloride doped ZnS has been synthesized by simple chemical precipitation method and characterized by XRD, SEM, UV-Vis analysis, Differential Thermal Analysis, Thermo Gravimetric Analysis and Differential Scanning Calorimetry. XRD patterns of the samples reveal particle size, specific surface area and the formation of cubic structure. The SEM images show that the cauliflower likes structure. Optical band gap values have been obtained from UV-Vis absorption spectra. It has also been found that energy band gap (Eg) increases with the increase in molar concentration of reactant solution. Thermal analysis measurement of the prepared sample shows that the thermal stability of pure ZnS is decreased due to increase in Ferric Chloride concentration. Undoped ZnS is more thermal stable when compared to FeCl3 doped ZnS.
description: 14 pages, 5 tables, 7 figures
Characterization of the flower morphology of three Duboisia species
Creators: name: Hiltrop, Rosa
name: Rothauer, Andreas
name: Winkelmann, Traud
name: Sparke, Julia
Publisher: name: Quedlinburg : Julius Kühn-Institut, Bundesforschungsinstitut für Kulturpflanzen
Year: 2016
Subjects: subject: flower morphology
subject: Duboisia sp.
subject: microscopy
subject: molecular genetic analysis
subject: Solanaceae
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::600 | Technik::640 | Hauswirtschaft und Familienleben

description: The tropane alkaloid scopolamine, an important precursor of active pharmaceutical ingredients due to its anticholinergic properties, can be extracted from leaf material of Duboisia R. Br., a member of the Solanaceae family. Robust and high-yielding Duboisia plants are a major requirement in cultivation because of challenges such as climatic changes and the rising demand of the active pharmaceutical ingredient. Therefore, breeding activities are carried out to improve Duboisia plants with regard to leaf and scopolamine yield maximization as well as a higher tolerance to environmental conditions. Molecular genetic analysis of highly conserved plastid sequences was used to prove the identity of the species Duboisia hopwoodii, D. myoporoides and D. leichhardtii. To evaluate different breeding options various flower characteristics have been analyzed by means of stereo microscopy for the three species. For D. hopwoodii and D. leichhardtii, all characteristics occur stably with nearly no variation. In contrast, the number of flower organs such as petals and anthers varied for D. myoporoides.
The black hole - bulge mass relation of Active Galactic Nuclei in the Extended Chandra Deep Field - South Survey
Creators: name: Schramm, Malte
name: Silverman, John D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present results from a study to determine whether relations, established in the local Universe, between the mass of supermassive black holes (SMBHs) and their host galaxies are in place at higher redshifts. We establish a well-constructed sample of 18 X-ray-selected, broad-line Active Galactic Nuclei (AGN) in the Extended Chandra Deep Field South - Survey with 0.5 < z < 1.2. This redshift range is chosen to ensure that HST imaging is available with at least two filters that bracket the 4000 Angstrom break thus providing reliable stellar mass estimates of the host galaxy by accounting for both young and old stellar populations. We compute single-epoch, virial black hole masses from optical spectra using the broad MgII emission line. For essentially all galaxies in our sample, their total stellar mass content agrees remarkably well, given their BH masses, with local relations of inactive galaxies and active SMBHs. We further decompose the total stellar mass into bulge and disk components separately with full knowledge of the HST point-spread-function. We find that ~80% of the sample is consistent with the local M_BH - M_Bulge relation even with 72% of the host galaxies showing the presence of a disk. In particular, bulge dominated hosts are more aligned with the local relation than those with prominent disks. We further discuss the possible physical mechanisms that are capable building up the stellar mass of the bulge from an extended disk of stars over the subsequent eight Gyrs.
description: 14 pages, 11 figures, accepted for publication in ApJ
title: Künstlerleben in Rom. Bertel Thorvaldsen (1770-1844). Der dänische Bildhauer und seine deutschen Freunde. Eine Ausstellung im Germanischen Nationalmuseum. 1. Dezember 1991 bis 1. März 1992
Creators: name: Luther, Edith
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
Model Selection ensuring Practical Identifiability for Models of Electric Drives with Coupled Mechanics
Creators: name: Tantau, Mathias
name: Popp, Eduard
name: Perner, Lars
name: Wielitzka, Mark
name: Ortmaier, Tobias
Publisher: name: Frankfurt ; München [u.a.] : Elsevier
Year: 2020
Subjects: subject: model selection
subject: structure and parameter identi cation
subject: practical identi ability
subject: sensitivity analysis
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik

description: Physically motivated models of electric drive trains with coupled mechanics are ubiquitous in industry for control design, simulation, feed-forward, model-based fault diagnosis etc. Often, however, the effort of model building prohibits these model-based methods. In this paper an automated model selection strategy is proposed for dynamic simulation models that not only optimizes the accuracy of the fit but also ensures practical identifiability of model parameters during structural optimization. Practical identifiability is crucial for physically motivated, interpretable models as opposed to pure prediction and inference applications. Our approach extends structural optimization considering practical identifiability to nonlinear models. In spite of the nonlinearity, local and linear criteria are evaluated, the integrity of which is investigated exemplarily. The methods are validated experimentally on a stacker crane.
title: Integrated Seismic-Reflection and Microgravity Imaging Across the Southern Boundary of the Charleston Uplift, New Madrid Seismic Zone, USA
Creators: name: Burford, Drew D., Jr.
Publisher: name: University of Kentucky Libraries
Year: 2019

description: The Charleston Uplift (CU), a 30-km-long by 7-km-wide, N46°E-oriented subsurface geologic anomaly in the northern Mississippi embayment near Charleston, Missouri, exhibits up to 36 m of vertical relief across the Paleogene/Quaternary unconformity. Subsurface structural relief, along with the CU’s coincident boundary alignment with contemporary microseismicity and the New Madrid North Fault (NMNF), suggest a structural origin. Subsequent seismic soundings indicate vertical structural relief is present in Cretaceous and Paleozoic horizons, supporting the fault-controlled origin. The southern boundary (CU-s) had not been investigated, nor had any direct fault images been acquired. Integrated microgravity and seismic-reflection methods across the inferred CU-s establish the first image of this fault.
Forward modeling indicated that the vertical variation of strata across the CU-s would induce a microgravity anomaly of 1.6 mGal. The observed microgravity anomaly survey across the southern boundary is 1.616 ± .004 mGal, and is consistent with the tectonic interpretation. A subsequently acquired seismic-reflection profile corroborates this interpretation. The imaged fault shows approximately 60, 35, and 35 meters of vertical down-to-the-south throw across the tops of Paleozoic, Cretaceous, and Tertiary horizons, respectively. This confirms the CU is not an erosional feature, but a structurally controlled extension of the NMNF.
description: Copyright © Drew David Burford Jr. 2019
description: Funding information: This thesis was made possible through the support of the Kentucky Research Consortium for Energy and Environment, the Department of Energy and the Kentucky Geological Survey.
The ranking lasso and its application to sport tournaments
Creators: name: Masarotto, Guido
name: Varin, Cristiano
Publisher: name: arXiv
Year: 2013
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Ranking a vector of alternatives on the basis of a series of paired comparisons is a relevant topic in many instances. A popular example is ranking contestants in sport tournaments. To this purpose, paired comparison models such as the Bradley-Terry model are often used. This paper suggests fitting paired comparison models with a lasso-type procedure that forces contestants with similar abilities to be classified into the same group. Benefits of the proposed method are easier interpretation of rankings and a significant improvement of the quality of predictions with respect to the standard maximum likelihood fitting. Numerical aspects of the proposed method are discussed in detail. The methodology is illustrated through ranking of the teams of the National Football League 2010-2011 and the American College Hockey Men's Division I 2009-2010.
description: Published in at http://dx.doi.org/10.1214/12-AOAS581 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Photon- and phonon-assisted tunneling in the three-dimensional charge stability diagram of a triple quantum dot array
Creators: name: Braakman, Floris R.
name: Barthelemy, Pierre
name: Reichl, Christian
name: Wegscheider, Werner
name: Vandersypen, Lieven M. K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report both photon- and phonon-assisted tunneling transitions in a linear array of three quantum dots, which can only be understood by considering the full three-dimensionality of the charge stability diagram. Such tunneling transitions potentially contribute to leakage of qubits defined in this system. A detailed understanding of these transitions is important as they become more abundant and complex to analyze as quantum dot arrays are scaled up.
Maximizing the capture velocity of molecular magneto-optical traps with Bayesian optimization
Creators: name: Xu, Supeng
name: Kaebert, Paul
name: Stepanova, Mariia
name: Poll, Timo
name: Siercke, Mirco
name: Ospelkaus, Silke
Publisher: name: Bristol, Bad Honnef : IOP Publishing Ltd., Deutsche Physikalische Gesellschaft
Year: 2021
Subjects: subject: Atomic and molecular physics
subject: quantum gases
subject: magneto-optical trap
subject: laser cooling
subject: cold molecules
subject: Bayesian optimization
subject: Atom- und Molekülphysik
subject: Ultrakalte Gase
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Magneto-optical trapping (MOT) is a key technique on the route towards ultracold molecular ensembles. However, the realization and optimization of magneto-optical traps with their wide parameter space is particularly difficult. Here, we present a very general method for the optimization of molecular magneto-optical trap operation by means of Bayesian optimization. As an example for a possible application, we consider the optimization of a calcium fluoride MOT for maximum capture velocity. We find that both the X2Σ+ to A2Π1/2 and the X2Σ+ to B2Σ+ transition to allow for capture velocities with 24 m s−1 and 23 m s−1 respectively at a total laser power of 200 mW. In our simulation, the optimized capture velocity depends logarithmically on the beam power within the simulated power range of 25 to 400 mW. Applied to heavy molecules such as BaH, BaF, YbF and YbOH with their low capture velocity MOTs it might offer a route to far more robust MOT.