cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Uniform chemical pressure effect in solid solutions Ba(1-x)Sr(x)Fe2As2 and Sr(1-x)Ca(x)Fe2As2
Creators: name: Saha, Shanta R.
name: Kirshenbaum, Kevin
name: Butch, Nicholas P.
name: Zavalij, Peter Y.
name: Paglione, Johnpierre
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The effect of alkaline earth substitution on structural parameters was studied in high-quality single crystals of Ba(1-x)Sr(x)Fe2As2 and Sr(1-x)Ca(x)Fe2As2 grown by the self-flux method. The results of single-crystal and powder x-ray diffraction measurements suggest a continuous monotonic decrease of both a- and c-axis lattice parameters, the c/a tetragonal ratio, and the unit cell volume with decreasing alkaline earth atomic radius as expected by Vegard's law. As a result, the system experiences a continuously increasing chemical pressure effect in traversing the phase diagram from x=0 in Ba(1-x)Sr(x)Fe2As2 to x=1 in Sr(1-x)Ca(x)Fe2As2.
description: 4 pages, 4 figures, and 1 table, submitted to SCES2010 proceedings
title: Predictive Modelling Approach to Data-driven Computational Psychiatry
Creators: name: Alghamdi, Wajdi
Publisher: name: Goldsmiths, University of London
Year: 2018

description: This dissertation contributes with novel predictive modelling approaches to data-driven
computational psychiatry and offers alternative analyses frameworks to the standard statistical
analyses in psychiatric research. In particular, this document advances research in
medical data mining, especially psychiatry, via two phases. In the first phase, this document
promotes research by proposing synergistic machine learning and statistical approaches
for detecting patterns and developing predictive models in clinical psychiatry
data to classify diseases, predict treatment outcomes or improve treatment selections. In
particular, these data-driven approaches are built upon several machine learning techniques
whose predictive models have been pre-processed, trained, optimised, post-processed
and tested in novel computationally intensive frameworks. In the second phase,
this document advances research in medical data mining by proposing several novel extensions
in the area of data classification by offering a novel decision tree algorithm,
which we call PIDT, based on parameterised impurities and statistical pruning approaches
toward building more accurate decision trees classifiers and developing new ensemblebased
classification methods. In particular, the experimental results show that by building
predictive models with the novel PIDT algorithm, these models primarily led to better
performance regarding accuracy and tree size than those built with traditional decision
trees. The contributions of the proposed dissertation can be summarised as follow.
Firstly, several statistical and machine learning algorithms, plus techniques to improve
these algorithms, are explored. Secondly, prediction modelling and pattern detection approaches
for the first-episode psychosis associated with cannabis use are developed.
Thirdly, a new computationally intensive machine learning framework for understanding
the link between cannabis use and first-episode psychosis was introduced. Then, complementary
and equally sophisticated prediction models for the first-episode psychosis associated
with cannabis use were developed using artificial neural networks and deep learning
within the proposed novel computationally intensive framework. Lastly, an efficient
novel decision tree algorithm (PIDT) based on novel parameterised impurities and statistical
pruning approaches is proposed and tested with several medical datasets. These contributions
can be used to guide future theory, experiment, and treatment development in
medical data mining, especially psychiatry.
title: Sounding Materiality : Explorations In Resonant Practice
Creators: name: Bulley, James
Publisher: name: Goldsmiths, University of London
Year: 2018

description: How might we explore material agency in sound arts practice to promote more
ecological ways of knowing our world? Through practice-based inquiry what
methodologies might emerge that can provide a framework for novel, open ways of
exploring the relation between sound and materiality?

Sounding Materiality is an account of arts research that works at the intra-face
(Barad 2000) of theory and practice. Through the critical analysis and portrayal of three
case-studies, the thesis contributes two novel sound practice techniques of ‘live
composition’ and ‘locative sound’, which it is proposed enable a closer and more fruitful
relationship between materiality and sound. Within the case-studies that underpin the
thesis, the process of experimenting with an expanded source bond between sound,
meaning, and materiality leads to diverse explorations with natural systems, haptic art,
phonography, sonic spatialisation, and participatory practice. Three sound-based
installations are the catalysts for these inquiries, including two place-specific works
driven by natural processes, Variable 4 and Living Symphonies, and the haptic sound
installation Tactus, conceived as a direct communicative artwork for the blind and
visually impaired. These iterative works took place over the seven-year duration of this
thesis (2010–2017) and have been exhibited publicly, with cross media documentation
of their occurrences imbricated in this text. In their critical analysis two distinct
contributions to sound practice emerge: ‘live composition’, a framework that uses
sonification and generative techniques to drive real-time sound composition based on
live source data, and ‘locative sound’ a technique that promotes the placing of sound in
the reality of the world, drawing relationships of ‘synchresis’ (Chion 1994) between
materiality and composed ‘sonic events’ (Cox 2015).

A methodological framework of ‘resonant practice’ inspired by Schön’s
‘reflective practitioner’ (Schön 1987) emerges by reflection on these case-studies,
portraying a praxis built on specific methodologies of ‘material thinking’ (Carter 2004),
iteration, dialogic collaboration, and communication of knowing through an ‘artstext’.
‘Resonant practice’ takes an ‘acoustemological’ approach (Feld 1994), venturing that an
arts research project rooted in sounding materiality promotes unique, ecological and
vibrant ways of knowing through sound. Through a resonant practice artists working
with sound can aim to propagate a ‘vibrant materialism’ (Bennett 2010), forwarding
communicative, ecological and sustainable approaches to our sonic and material
environment.
DC distribution systems for home application
Creators: name: Iyer, Shreya
Publisher: name: University of British Columbia
Year: 2015

description: Unprecedented expansion of native direct current (DC) powered equipment (computers and consumer electronics) has increased household DC electricity consumption over the past decade. Since power utilities deliver alternating current (AC) rather than DC, the conversion process (rectifier) used to supply DC loads is very inefficient. The research investigates the suitability of employing conventional AC wiring to distribute DC power to supply loads directly, in particular around outlet/switch arcing issues. The problem of arcing in DC system is very predominant and needs to be addressed to meet safety requirements while improving the efficiency of the system. In order to overcome the arcing issues, an alternative flat DC wiring system is proposed which offers improved transient electrical and thermal characteristics for household wiring. The flat wire solution employs the same raw materials and provides improvements in parasitic values associated with arcing while reducing thermal resistance. The proposed flat wire geometry is expected to achieve reduction of arcing and improve the overall efficiency of the distribution system. Simulations of the two preliminary AC and DC systems are provided for typical domestic loads and switching events. These characteristics are verified by conducting similar tests on house wiring system prototype created in the lab. Furthermore, the switching behaviour is observed on loading the system through the outlet.
title: Full Colour & Splendour and Fatigue
Creators: name: Gregory, Matthew
Publisher: name: Goldsmiths, University of London
Year: 2018

description: This essay discusses the travel poetry of John Ash and the historical portraits of Durs Grünbein in relation to my manuscript, Full Colour. Isolated here are the two constitutive elements of my poetry collection: travel and history. Through an appraisal of these two poets, I examine my own thematic concerns and poetics indirectly, before considering the manuscript itself. Overall, the thesis is a practitioner’s perspective that includes both critical analysis of the finished text and reflection on points of craft.
     
Beginning with John Ash’s ‘Byzantine’ travel poems, the chapter considers his valorisation of the ancient scenery, cities and monuments of the ‘Old World’, as a subtle criticism of modernity. This chapter deploys the concepts of anti-tourism, picturesque and non-place to deepen this analysis, locating an opposition to the commodification of travel and instrumentalisation more broadly.

The focus then turns to the historical portraits of Durs Grünbein and their displacement of a sense of catastrophe (the post-catastrophic) – derived from the German twentieth century – onto scenes from ancient Rome. This section examines the imaginative techniques Grünbein employs to ‘actualize’ his historical scenarios.
 
These diverse analyses are united in a final chapter on my own manuscript. This dual focus – on travel and history – is necessitated by their mutual role in my work, elicited by the catalyst for many of my poems: a period living in Naples. Drawing from the theoretical categories deployed in relation to Ash and Grünbein, the thesis elucidates a unitary poetics in my manuscript.
title: Typographical Portabilities: The Designer and User in
Communication Technologies
Creators: name: Maragiannis, Anastasios
Publisher: name: Goldsmiths, University of London
Year: 2021

description: This thesis investigates how the gradual shift from print to portable screen based technology has
impacted typographic communication. The transition from print to portable screen based
devices, from material to virtual space, and from the textual to the visual has inevitably altered
our relationship to type, as readers and as designers. Virtual typography can be defined as a new
form of typographic communication that is reimagining the way we understand type as a visually
communicating medium; we have moved from viewing type in print as “voice” to increasingly
regarding type in screen based environments “as image”. This thesis takes the form of practiceled
research conducted as a comparative study that explores the nature of virtual typography,
counter to formalised models and established print based frameworks, in order to demarcate the
nature of virtual typography in its current form and how this affects the activity of reading and
design practices. Virtual typographic communication exhibits a tendency to suspend the
constraints underlying conventional understandings and approaches to legibility and readability,
suggesting that the communication process is undergoing a paradigm shift. Print typography has
been guided by the ideological tendency to fulfil the role of mediator between author and
reader; driven by the sole purpose of imperceptibly transmitting authorial messages to a reader.
Virtual typography has redefined these parameters in its ability to convey and go beyond the
remit of textual language; it has formed a direct relationship between designer and reader and
has gone from transmitting messages to acquiring the capability of generating its own messages,
partaking in the activity of narrative construction. Virtual typography is neither invisible nor
silent rather, it reveals and informs the complex cognitive and perceptual processes involved in
communication and the reciprocal relationship between designer and reader. Kinesis combined
with interaction in virtual typography escapes the fixity of meaning without suspending it; in
contrast it generates the conditions, which enable the creation of a multiplicity of meanings. The
original contribution to knowledge and argument of this thesis is that mobile technology has
reinvented typography and as a result, the changing landscape and conceptualisation of
typographic practices are in turn, redefining the communication process.
EXAMINING THE RELATIONSHIP BETWEEN THE GUT MICROBIOME AND CENTRAL NERVOUS SYSTEM INFLAMMATION IN RATS WITH FETAL ALCOHOL SYNDROME
Creators: name: Moh, Sarah G
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Microbiology not elsewhere classified
Microbial ecology
Other biological sciences not elsewhere classified
Sequence analysis
Biological psychology not elsewhere classified

description: Fetal Alcohol Syndrome (FAS) is the most serious form of Fetal Alcohol Spectrum Disorders (FASD) and the most prevalent neurodevelopmental disorder in North America. Patients with FAS may exhibit cognitive problems with working memory, manipulating information, and reduced executive functioning. Additionally, previous studies exhibited that stress responses are affected by prenatal alcohol consumption Gut microbiota compositions can also influence stress responses and memory, as several studies have shown strong relationships between the enteric gut system and the brain. However, few studies have examined how prenatal alcohol exposure’s effects on the gut microbiome and neuroinflammatory responses. For this study, pregnant HsdBlu:LE Long Evans rats were treated with either a dry diet, liquid diet, or liquid diet with alcohol. On day 28 and 42 after birth, three male and three female adolescent pups from each treatment group had their gut microbiome (fecal samples) analyzed through 16S rRNA amplicon sequencing. Brain histology staining of the cortex and hippocampus regions was also done to evaluate changes in the CNS through microglial counts and morphology analysis. There were no significant differences in alpha diversity of the fecal microbiome between groups of pups based on prenatal alcohol exposure (PAE), sex, age, the interaction of PAE and sex, or in the morphology of cortex microglia. However, analysis of beta diversity using Bray-Curtis dissimilarity and weighted UniFrac suggested distinct microbial communities between the treatment groups based on PAE and the interaction of PAE, sex, and the interaction between PAE and sex. Microglial count comparisons by PAE or sex were only statistically different in the cortex (p ≤ 0.005). The significance of this study suggests that there are some associations between the gut microbiome and CNS inflammation in rats with PAE. Based on these findings, 11 future studies may implement therapeutics such as antibiotics or probiotics to mitigate cognitive or neural symptoms of FASD affected individuals.
High precision $^{89}$Y($α$,$α$)$^{89}$Y scattering at low energies
Creators: name: Kiss, G. G.
name: Mohr, P.
name: Fülöp, Zs.
name: Galaviz, D.
name: Gyürky, Gy.
name: Elekes, Z.
name: Somorjai, E.
name: Kretschmer, A.
name: Sonnabend, K.
name: Zilges, A.
name: Avrigeanu, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Elastic scattering cross sections of the $^{89}$Y($α$,$α$)$^{89}$Y reaction have been measured at energies E$_{c.m.}$ = 15.51 and 18.63 MeV. The high precision data for the semi-magic $N = 50$ nucleus $^{89}$Y are used to derive a local potential and to evaluate the predictions of global and regional $α$-nucleus potentials. The variation of the elastic alpha scattering cross sections along the $N = 50$ isotonic chain is investigated by a study of the ratios of angular distributions for $^{89}$Y($α$,$α$)$^{89}$Y and $^{92}$Mo($α$,$α$)$^{92}$Mo at E$_{c.m.} \approx$ 15.51 and 18.63 MeV. This ratio is a very sensitive probe at energies close to the Coulomb barrier, where scattering data alone is usually not enough to characterize the different potentials. Furthermore, $α$-cluster states in $^{93}$Nb = $^{89}$Y $\otimes$ $α$ are investigated.
Small-x Physics with the ALICE experiment at the CERN-LHC
Creators: name: Nayak, Tapan K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: High energy p-p, p-Pb and Pb-Pb collisions at the CERN-LHC offer unprecedented opportunities for studying wide variety of physics at small Bjorken-x. Here we discuss capabilities of the ALICE experiment at the CERN-LHC for probing small-x QCD physics. A new forward electromagnetic calorimeter is being proposed as an ALICE upgrade to explore the small-x region in more detail.
description: Prepared for the Workshop on "Saturation, the Color Glass Condensate and Glasma: What Have we Learned from RHIC?" - to be published in Nucl. Phys. A
On how the optical depth tunes the effects of ISM neutral atom flow on debris disks
Creators: name: Marzari, Francesco
name: Thebault, Philippe
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The flux of ISM neutral atoms surrounding stars and their environment affects the motion of dust particles in debris disks, causing a significant dynamical evolution. Large values of eccentricity and inclination can be excited and strong correlations settle in among the orbital angles. This dynamical behaviour, in particular for bound dust grains, can potentially cause significant asymmetries in dusty disks around solar type stars which might be detected by observations. However, the amount of orbital changes due to this non--gravitational perturbation is strongly limited by the collisional lifetime of dust particles. We show that for large values of the disk's optical depth the influence of ISM flow on the disk shape is almost negligible because the grains are collisionally destroyed before they can accumulate enough orbital changes due to the ISM perturbations. On the other hand, for values smaller than $10^{-3}$, peculiar asymmetric patterns appear in the density profile of the disk when we consider 1-10 mum grains, just above the blow-out threshold. The extent and relevance of these asymmetries grow for lower values of the optical depth. An additional sink mechanism, which may prevent the formation of large clumps and warping in the disks is related to the fast inward migration due to the drag component of the forces. When a significant eccentricity is pumped up by the ISM perturbations, the drag forces (Poynting-Robertson and in particular ISM drag) drive the disk particles on fast migrating tracks leading them into the star on a short timescale. It is then expected that disks with small optical depth expand inside the parent body ring all the way towards the star while disks with large optical depth would not significantly extend inside.
description: accepted for publication in MNRAS
Room to breathe : a retreat for educators
Creators: name: Martens, Rachel Dionne
Publisher: name: University of British Columbia
Year: 2015

description: This written thesis presents reflections and analysis of my thesis performance, Room to Breathe: A Retreat for Educators. As both a contemporary theatre practitioner and an educator, my theoretical and practical cross-disciplinary research has culminated in the creation of this interdisciplinary theatre event. Simultaneously a workshop and a work of art, this three-hour evening experience takes place inside an immersive theatrical environment, an aesthetic context designed to facilitate embodied self-reflection. The interactive performance invites educators to consider how we can create more room to breathe within our bodies, within our schedules, and within our classrooms. Inspired by the transformative potential of theatre as a ritual, I directed a four-week interdisciplinary collaboration between myself and three performing artists (Melisa Hernandez, Lolu Oyedele, and Keith Wyatt), using fabric, lighting, sound, text, projections, dance, and music to generate a series of metaphors for educators to observe, and to participate in co-creating. Fueled by what the rhythm of the breath continues to teach me about teaching and learning, this aesthetic experience was designed to engage educators in a subtle praxis of attunement to the rhythm of the breath within the framework of the body and within the learning process. Each educator contributed her unique presence, perspective and way of making meaning to the collective. I facilitated a dialogical exploration of how the embodied experiences that unfolded throughout the evening might be translated into personal and professional practice. In conclusion, I propose that providing educators with an aesthetic experience of liminal space/time can transform body-based practices, metaphors, and conversations into gateways for experiencing mindfulness as an integrated lifestyle: an embodied way of seeing and being. Within this embodied experience, participants can access shifts in perspective, lines of inquiry, and poetic insight that would not be available in an educational context that focuses purely on cultivating intellectual understanding. Attunement to the rhythm of the breath can engender curiosity about, trust in, and surrender to intrinsic rhythm in curricular enactment, inviting educators to engage their whole being (body, mind and spirit) in the dynamic reciprocity of relationships, and in learning and teaching as ongoing spirals of transformation.
In-situ measurements of the optical absorption of dioxythiophene-based conjugated polymers
Creators: name: Hwang, J.
name: Nikolou, M.
name: Ihas, B.
name: Clark, R.
name: Cornick, M.
name: Tanner, D. B.
name: Schwendeman, I.
name: Reynolds, J. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Conjugated polymers can be reversibly doped by electrochemical means. This doping introduces new sub-bandgap optical absorption bands in the polymer while decreasing the bandgap absorption. To study this behavior, we have prepared an electrochemical cell allowing measurements of the optical properties of the polymer. The cell consists of a thin polymer film deposited on gold-coated Mylar behind which is another polymer that serves as a counterelectrode. An infrared transparent window protects the upper polymer from ambient air. By adding a gel electrolyte and making electrical connections to the polymer-on-gold films, one may study electrochromism in a wide spectral range. As the cell voltage (the potential difference between the two electrodes) changes, the doping level of the conjugated polymer films is changed reversibly. Our experiments address electrochromism in poly(3,4-ethylene-dioxy-thiophene) (PEDOT) and poly(3,4-dimethyl-propylene-dioxy-thiophene) (PProDOT-Me$_2$). This closed electrochemical cell allows the study of the doping induced sub-bandgap features (polaronic and bipolaronic modes) in these easily oxidized and highly redox switchable polymers. We also study the changes in cell spectra as a function of polymer thickness and investigate strategies to obtain cleaner spectra, minimizing the contributions of water and gel electrolyte features.
WASP-34b: a near-grazing transiting sub-Jupiter-mass exoplanet in a hierarchical triple system
Creators: name: Smalley, B.
name: Anderson, D. R.
name: Cameron, A. Collier
name: Hellier, C.
name: Lendl, M.
name: Maxted, P. F. L.
name: Queloz, D.
name: Triaud, A. H. M. J.
name: West, R. G.
name: Bentley, S. J.
name: Enoch, B.
name: Gillon, M.
name: Lister, T. A.
name: Pepe, F.
name: Pollacco, D.
name: Segransan, D.
name: Smith, A. M. S.
name: Southworth, J.
name: Udry, S.
name: Wheatley, P. J.
name: Wood, P. L.
name: Bento, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the discovery of WASP-34b, a sub-Jupiter-mass exoplanet transiting its 10.4-magnitude solar-type host star (1SWASP J110135.89-235138.4; TYC 6636-540-1) every 4.3177 days in a slightly eccentric orbit (e = 0.038 +/- 0.012). We find a planetary mass of 0.59 +/- 0.01 M_Jup and radius of 1.22 ^{+0.11}_{-0.08} R_Jup. There is a linear trend in the radial velocities of 55+/-4 m/s/y indicating the presence of a long-period third body in the system with a mass > 0.45 M_Jup at a distance of >1.2 AU from the host star. This third-body is either a low-mass star, white dwarf, or another planet. The transit depth ((R_P/R_*)^2 = 0.0126) and high impact parameter (b = 0.90) suggest that this could be the first known transiting exoplanet expected to undergo grazing transits, but with a confidence of only ~80%.
description: 5 pages, 6 figures, accepted on 9 December 2010 by A&A Main Journal, Section 10. Planets and planetary systems
The size of the longest filament in the Luminous Red Galaxy distribution
Creators: name: Pandey, Biswajit
name: Kulkarni, Gauri
name: Bharadwaj, Somnath
name: Souradeep, Tarun
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Filaments are one of the most prominent features visible in the galaxy distribution. Considering the Luminous Red Galaxies (LRGs) in the Sloan Digital Sky Survey Data Release Seven (SDSS DR7), we have analyzed the filamentarity in 11 nearly two dimensional (2D) sections through a volume limited subsample of this data. The galaxy distribution, we find, has excess filamentarity in comparison to a random distribution of points. We use a statistical technique "Shuffle" to determine $L_{\rm MAX}$, the largest length-scale at which we have statistically significant filaments. We find that $L_{\rm MAX}$ varies in the range $100-130 \, h^{-1} {\rm Mpc}$ across the 11 slices, with a mean value $L_{\rm MAX}=110 \pm 12 \, h^{-1}{\rm Mpc}$. Longer filaments, though possibly present in our data, are not statistically significant and are the outcome of chance alignments.
description: 6 pages, 6 figures, Accepted for publication in MNRAS
Antiteuchus marmoratus
Creators: name: Fernandes, José Antônio Marin
name: Grazia, Jocélia
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Antiteuchus
Antiteuchus marmoratus

description: Grupo A. marmoratus Este grupo é composto somente por A. marmoratus, portanto a descrição e comentários são apresentados apenas para espécie.
description: Published as part of Fernandes, José Antônio Marin & Grazia, Jocélia, 2006, Revisão do gênero Antiteuchus Dallas (Heteroptera, Pentatomidae, Discocephalinae), pp. 165-231 in Revista Brasileira de Entomologia 50 (2) on page 205, DOI: 10.1590/S0085-56262006000200004, http://zenodo.org/record/3966045
Precise distance measurements in DNA G-quadruplex dimers and sandwich complexes by pulsed dipolar EPR spectroscopy
Creators: name: Stratmann, Lukas M.
name: Kutin, Yury
name: Kasanmascheff, Müge
name: Clever, Guido H.
Publisher: name: TU Dortmund
Year: 2020
Subjects: subject: DNA
subject: G-quadruplexes
subject: Metal base-pairing
subject: p-stacking
subject: EPR spectroscopy
subject: 540

description: DNA G-quadruplexes show a pronounced tendency to form higher-order structures, such as π-stacked dimers and aggregates with aromatic binding partners. Reliable methods for determining the structure of these non-covalent adducts are scarce. Here, we use artificial square-planar Cu(pyridine)4 complexes, covalently incorporated into tetramolecular G-quadruplexes, as rigid spin labels for detecting dimeric structures and measuring intermolecular Cu2+–Cu2+ distances via pulsed dipolar EPR spectroscopy. A series of G-quadruplex dimers of different spatial dimensions, formed in tail-to-tail or head-to-head stacking mode, were unambiguously distinguished. Measured distances are in full agreement with results of molecular dynamics simulations. Furthermore, intercalation of two well-known G-quadruplex binders, PIPER and telomestatin, into G-quadruplex dimers resulting in sandwich complexes was investigated, and previously unknown binding modes were discovered. Additionally, we present evidence that free G-tetrads also intercalate into dimers. Our transition metal labeling approach, combined with pulsed EPR spectroscopy, opens new possibilities for examining structures of non-covalent DNA aggregates.
description: Angewandte chemie international edition;Vol. 60. 2021, Issue 9, 4939-4947
All-optical ion generation for ion trap loading
Creators: name: Sheridan, Kevin
name: Lange, Wolfgang
name: Keller, Matthias
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We have investigated the all-optical generation of ions by photo-ionisation of atoms generated by pulsed laser ablation. A direct comparison between a resistively heated oven source and pulsed laser ablation is reported. Pulsed laser ablation with 10 ns Nd:YAG laser pulses is shown to produce large calcium flux, corresponding to atomic beams produced with oven temperatures greater than 650 K. For an equivalent atomic flux, pulsed laser ablation is shown to produce a thermal load more than one order of magnitude smaller than the oven source. The atomic beam distributions obey Maxwell-Boltzmann statistics with most probable speeds corresponding to temperatures greater than 2200 K. Below a threshold pulse fluence between 280 mJ/cm^2 and 330 mJ/cm^2, the atomic beam is composed exclusively of ground state atoms. For higher fluences ions and excited atoms are generated.
description: 7 pages, 9 figures
Materialien zur Musiklehrer*innenbildung
Creators: name: Neuhaus, Daniela
name: Lenord, Christiane
name: Puffer, Gabriele
Publisher: name: Die Materialwerkstatt. Zeitschrift für Konzepte und Arbeitsmaterialien für Lehrer*innenbildung und Unterricht.
Year: 2022

description: Mit der „Qualitätsoffensive Lehrbildung“ des BMBF rückt die Musiklehrer*innenbildung unter neuen Schwerpunktsetzungen in den Fokus musikpädagogischer Forschungs- und Entwicklungsarbeit. Dieses Themenheft bündelt Materialien aus acht Qualitätsoffensive-Projekten sowie freie Beiträge. Vorgestellt werden hochschuldidaktische Formate zur Anregung von Reflexion und zur Vermittlung musikpädagogischer Inhalte. Ergänzt werden sie durch Beiträge, die das Nachdenken über Musiklehrer*innenbildung zum Thema haben. Das Editorial erläutert den Entstehungskontext der Materialien und gibt einen Überblick über deren Anordnung und inhaltliche Schwerpunktsetzungen.
description: Die Materialwerkstatt. Zeitschrift für Konzepte und Arbeitsmaterialien für Lehrer*innenbildung und Unterricht., Bd. 4 Nr. 2 (2022): Materialien zur Musiklehrer*innenbildung
Portfolioimpulse als Eingriff in Prozesse der Ästhetischen Forschung
Creators: name: Janczik, Lukas
name: Czyrnick-Leber, Uta
Publisher: name: Die Materialwerkstatt. Zeitschrift für Konzepte und Arbeitsmaterialien für Lehrer*innenbildung und Unterricht.
Year: 2022

description: Das interdisziplinären Projektseminar "Crossover" zielt auf eine performativ-künstlerische Auseinandersetzung mit einem Semesterthema ab, welche in einer Kleingruppen-Performance mit dazugehöriger Reflexion als Prüfungsleistung mündet. Hierbei spielen sowohl musikalische und künstlerische Inhalte als auch bewegungsbezogene Aspekte eine Rolle. Methodisch ist das Seminar an das Konzept der Ästhetischen Forschung (Kämpf-Jansen, 2012) angelehnt. Da Ästhetische Forschung einen selbstbestimmten und ergebnisoffenen Prozess impliziert, stellt uns die Übertragung des Konzepts in den Hochschulkontext vor Herausforderungen. Aufgrund der festgelegten Prüfungsleistung und der damit einhergehenden zu vermittelnden ästhetischen Praktiken entwickelt sich ein Spannungsfeld zwischen den angestrebten freien individuellen Prozessen und den hochschulorganisatorischen Vorgaben. Um diesem zu begegnen, erweitern wir das – im Konzept der Ästhetischen Forschung vorgesehene – Dokumentationsinstrument des Tagebuchs durch gezielte Portfolioimpulse, die eine Erprobung und Reflexion der zu vermittelnden ästhetischen Praktiken anstreben. Im Beitrag wird die Konzeption des Seminars dargestellt. Die Portfolioimpulse werden als Möglichkeit evaluiert, obligatorische Inhalte in Prozesse der Ästhetischen Forschung zu integrieren.
description: Die Materialwerkstatt. Zeitschrift für Konzepte und Arbeitsmaterialien für Lehrer*innenbildung und Unterricht., Bd. 4 Nr. 2 (2022): Materialien zur Musiklehrer*innenbildung
Influence of different alloying strategies on the mechanical behavior of tool steel produced by laser-powder bed fusion
Creators: name: Chehreh, Abootorab Baqerzadeh
name: Strauch, Anna
name: Großwendt, Felix
name: Röttger, Arne
name: Fechte-Heinen, Rainer
name: Theisen, Werner
name: Walther, Frank
Publisher: name: TU Dortmund
Year: 2021
Subjects: subject: Powder mixing
subject: New alloying strategies for additive manufacturing
subject: Tool steel
subject: Laser-powder bed fusion (L-PBF)
subject: Compression test
subject: Computed tomography
subject: 660
subject: Rapid Prototyping
subject: Legierung
subject: Werkzeugstahl
subject: Selektives Laserschmelzen
subject: Druckversuch
subject: Mikrocomputertomographie

description: Additive manufacturing is a high-potential technique that allows the production of components with almost no limitation in complexity. However, one of the main factors that still limits the laser-based additive manufacturing is a lack of processable alloys such as carbon martensitic hardenable tool steels, which are rarely investigated due to their susceptibility to cold cracking. Therefore, this study aimed to expand the variety of steels for laser powder bed fusion (L-PBF) by investigating an alternative alloying strategy for hot work tool steel powder. In this study, a comprehensive investigation was performed on the powder and L-PBF processed specimen properties and their correlation with the existing defects. Cubical specimens were created using the following two alloying strategies by means of L-PBF: conventional pre-alloyed gas-atomized powder and a mixture of gas-atomized powder with mechanically crushed pure elements and ferroalloys. The influence of the particle parameters such as morphology were correlated to the defect density and resulting quasi-static mechanical properties. Micromechanical behavior and damage evolution of the processed specimens were investigated using in situ computed tomography. It was shown that the properties of the L-PBF processed specimens obtained from the powder mixture performs equal or better compared to the specimens produced from conventional powder.
description: Materials;Vol. 14. 2021, issue 12, articleId 3344
Interdisziplinarität als Chance
Creators: name: Voss, Christiana
name: Freytag, Verena
Publisher: name: Die Materialwerkstatt. Zeitschrift für Konzepte und Arbeitsmaterialien für Lehrer*innenbildung und Unterricht.
Year: 2022

description: Im Rahmen dieses Beitrags möchten wir zum Nachdenken über Potenziale und Herausforderungen interdisziplinärer Seminarsettings anregen. Wir stellen ein Projekt vor, in dem die Fachgebiete Musikpädagogik, Kunstpädagogik, Sportpädagogik (Tanz) und Ästhetische Bildung (Grundschullehramt) gemeinsam ein Seminarkonzept entwickelt haben, das Studierende des Lehramts auf die Initiierung und Begleitung ästhetisch-künstlerischer Gestaltungsprozesse vorbereiten soll. Der Schwerpunkt des Artikels liegt auf der Darstellung und Diskussion von Evaluationsergebnissen, die uns zur Weiterentwicklung des Seminarkonzepts angeregt haben.
description: Die Materialwerkstatt. Zeitschrift für Konzepte und Arbeitsmaterialien für Lehrer*innenbildung und Unterricht., Bd. 4 Nr. 2 (2022): Materialien zur Musiklehrer*innenbildung
title: Characterization of post-yield behavior of a warship grillage subject to repeated impacts
Creators: name: Robbins, Matthew Lee
Publisher: name: Memorial University of Newfoundland
Year: 2020

description: This thesis investigates the progressive accumulation of plastic strain in the response of a uniaxially-stiffened warship grillage repeatedly impacted by a smooth, rigid, spherical indenter. An explicit, nonlinear numerical model was developed, and five distinct indentation patterns were applied over an ultra-low cycle frequency range (<50 impacts) across a range of impact velocities to characterize the grillage response. The results were analyzed to assess whether a ship structure exhibits shakedown behaviors associated with small strain plasticity and fatigue behaviors, or whether sufficient evidence exists to suggest considerations for progressive plastic accumulation (ratcheting) be made when assessing damage capacity in ship structural analysis. Impact experimentation was conducted at full-scale using a double-pendulum style impact apparatus to validate the numerical model. The experimental observations show fair agreement with the numerical simulations. It was found that at increasing levels of impact energy, the grillage response transitioned from elastic shakedown to pseudo-shakedown or ratcheting responses.
Decay of a plasmon into neutral modes in a carbon nanotube
Creators: name: Chen, Wei
name: Andreev, A. V.
name: Mishchenko, E. G.
name: Glazman, L. I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We evaluate the rate of energy loss of a plasmon in a disorder-free carbon nanotube. The plasmon decays into neutral bosonic excitations of the electron liquid. The process is mediated either by phonon-assisted backscattering of a single electron, or Umklapp backscattering of two electrons. To lowest order in the backscattering interactions the partial decay rates are additive. At zero doping the corresponding decay rates scale as power-laws of the temperature with positive and negative exponents for the two mechanisms, respectively. The precise values of the exponents depend on the Luttinger liquid parameter. At finite doping the decay rates are described by universal crossover functions of frequency and chemical potential measured in units of temperature. In the evaluation of the plasmon decay, we concentrate on a finite-length geometry allowing excitation of plasma resonances.
description: 10 pages, 4 figures
D4.1 METRO-HAUL Control and Management Requirements and Framework
Creators: name: Casellas, Ramon
name: Martínez, Ricardo
name: Vilalta, Ricard
name: Raül Muñoz
name: Svaluto, Michela
name: Luis Velasco,
name: Junyent, Gabriel
name: Comellas, Jaume
name: Ruiz, Marc
name: Muro, Francisco Javier Moreno
name: Garrich, Miquel
name: Pavón, Pablo
name: Maier, Guido
name: Tornatore, Massimo
name: Musumeci, Francesco
name: Troia, Sebastian
name: Giorgetti, Alessio
name: Cugini, Filippo
name: Morro, Roberto
name: Dios, Oscar González De
name: Silva, Rafael Alejandro Lopez Da
name: Jorge López De Vergara,
name: Rafael Leira, Mario Ruiz
name: Danish Rafique
name: King, Daniel
name: Napoli, Antonio
name: Uniyal, Navdeep
name: Matrakidis, Chris
name: Kosmatos, Evangelos
name: D'Errico, Antonio
Publisher: name: Zenodo
Year: 2018
Subjects: SDN/NFV; Network Control Plane; Multilayer and Optical

description: This document (D4.1) reports the initial design of the METRO-HAUL control platform. It provides an overview of the control and management requirements and framework justifying design choices and deployment models. D4.1 covers a preliminary specification of the interfaces in view of integration and interoperability, listing selected components to be developed and to be integrated in demonstration scenarios. For each component, D4.1 details its implementation roadmap, functional regression and integration tests, and the means to validate the implementation, including control KPIs.

The METRO-HAUL control, orchestration and management system that enables the dynamic provisioning of services, such as network data connectivity or network slicing instances, is presented from a high-level point of view. The COM is based on Software Defined Networking principles, with a centralized network control plane. This control plane is hierarchical, with an SDN control per technology domain. Along the SDN control plane for the provisioning of connectivity, a European Telecommunications Standards Institute Network Function Virtualization Management and Orchestration MANO part is responsible for the instantiation of NFV-based Network Services, understood in this context as interconnected Virtual Network Functions. As key components of the system and as examples of the innovation behind METRO-HAUL, there is Monitoring and Data Analytics (MDA) subsystem, able to recommend actions to the controllers based on performance monitoring and telemetry data and a service and network planner component, which enables the COM system to off-load computations such as VNF placement or network reconfiguration to task optimized entities.
Reflexionsanlässe schaffen
Creators: name: Höller, Katharina
name: Duve, Jan
name: Hildebrand, Thilo
name: Langner, Johanna
name: Kranefeld, Ulrike
Publisher: name: Die Materialwerkstatt. Zeitschrift für Konzepte und Arbeitsmaterialien für Lehrer*innenbildung und Unterricht.
Year: 2022

description: Für Lehramtsstudierende im Fach Musik besteht eine zentrale Herausforderung darin, sich im Laufe ihres Studiums innerhalb der Pluralität oftmals unverbunden nebeneinanderstehender fachdidaktischer Konzeptionen zu orientieren. Dabei müssen sie nicht nur mit divergierenden Zieldimensionen, sondern zudem mit unterschiedlichen Gegenstandsverständnissen umgehen. Deshalb bedarf es einer reflexiven Musiklehrer*innenbildung, die durch sorgfältig entwickelte Impulse Reflexionsprozesse initiiert und damit eigene fachdidaktische Positionierungen der Studierenden für die spätere Berufspraxis anbahnt. Im Beitrag werden Erträge der Entwicklung von hochschuldidaktischen Lehr-/Lernformaten in den BMBF-geförderten Projekten „Degree 4.0“, „K4D“ und „DoProfiL“ an der musikpädagogischen Forschungsstelle der TU Dortmund dargestellt. Die Projekte zielen auf die Förderung von Reflexionsprozessen und reflexionsbezogenen Dispositionen (wie einer reflexiven Haltung) und nehmen dabei digitale, teils videobasierte Lernsettings zum Musik-Erfinden, zum Sprechen über Musik und zur Inklusion im Musikunterricht in den Blick.
description: Die Materialwerkstatt. Zeitschrift für Konzepte und Arbeitsmaterialien für Lehrer*innenbildung und Unterricht., Bd. 4 Nr. 2 (2022): Materialien zur Musiklehrer*innenbildung
Near-threshold high-order harmonic spectroscopy with aligned molecules
Creators: name: Soifer, H.
name: Botheron, P.
name: Shafir, D.
name: Diner, A.
name: Raz, O.
name: Bruner, B. D.
name: Mairesse, Y.
name: Pons, B.
name: Dudovich, N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study high-order harmonic generation in aligned molecules close to the ionization threshold. Two distinct contributions to the harmonic signal are observed, which show very different responses to molecular alignment and ellipticity of the driving field. We perform a classical electron trajectory analysis, taking into account the significant influence of the Coulomb potential on the strong-field-driven electron dynamics. The two contributions are related to primary ionization and excitation processes, offering a deeper understanding of the origin of high harmonics near the ionization threshold. This work shows that high harmonic spectroscopy can be extended to the near-threshold spectral range, which is in general spectroscopically rich.
description: 4 pages, 4 figures
Musikdidaktische Konzeptionen als „Massive Open Online Course“ (MOOC)
Creators: name: Wieneke, Julia
Publisher: name: Die Materialwerkstatt. Zeitschrift für Konzepte und Arbeitsmaterialien für Lehrer*innenbildung und Unterricht.
Year: 2022

description: Der Beitrag beschreibt die Hintergründe und Organisation eines umfassenden Online-Kurses zur Geschichte musikdidaktischer Konzeptionen. Der Aufbau des MOOCs mit den sieben Modulen wird kurz vorgestellt, und es werden die verfügbaren zusätzlichen Materialien beschrieben. Der Kurs auf der iMooX-Plattform ermöglicht durch die offene Lizensierung als „Open Educational Resource“ (OER) auch eine Bearbeitung durch die Nutzer*innen und eröffnet dadurch weitere Verwendungsweisen in der universitären Lehre und darüber hinaus. Einige Ideen für die Einbindung in der Lehrer*innenbildung werden vorgestellt, und es wird ein Einblick gegeben in die Erfahrungen und das bisherige Feedback, seit der Kurs im November 2020 online gegangen ist.
description: Die Materialwerkstatt. Zeitschrift für Konzepte und Arbeitsmaterialien für Lehrer*innenbildung und Unterricht., Bd. 4 Nr. 2 (2022): Materialien zur Musiklehrer*innenbildung
Dipolar Bose-Einstein condensate of Stationary-Light Dark-state Polaritons
Creators: name: Zimmer, Frank E.
name: Nikoghosyan, Gor
name: Plenio, Martin B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We put forward and discuss in detail a scheme to achieve Bose-Einstein condensation of stationary-light dark-state polaritons with dipolar interaction. To this end we have introduced a diamond-like coupling scheme in a vapor of Rydberg atoms under the frozen gas approximation. To determine the system's dynamics we employ normal modes and identify the dark-state polariton corresponding to one of the modes. We show that in contrast to atomic dipolar ultra-cold vapors dark-state polariton Bose-Einstein condensates proposed here can be stable for a negative dipolar interaction constant.
description: 5 pages, 1 figure
A non-adapted sparse approximation of PDEs with stochastic inputs
Creators: name: Doostan, Alireza
name: Owhadi, Houman
Publisher: name: arXiv
Year: 2010
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We propose a method for the approximation of solutions of PDEs with stochastic coefficients based on the direct, i.e., non-adapted, sampling of solutions. This sampling can be done by using any legacy code for the deterministic problem as a black box. The method converges in probability (with probabilistic error bounds) as a consequence of sparsity and a concentration of measure phenomenon on the empirical correlation between samples. We show that the method is well suited for truly high-dimensional problems (with slow decay in the spectrum).
In-Flow dynamics of an area-difference-energy spring-particle red blood cell model on non-uniform grids
Creators: name: Walsh, Dr. Brendan
name: Boyle, Prof. Fergal J.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Hematology

description: In this paper the area-difference-energy spring-particle (ADE-SP) red blood cell (RBC) structural model developed by Chen and Boyle is coupled with a lattice Boltzmann flux solver to simulate RBC dynamics. The novel ADE-SP model accounts for bending resistance due to the membrane area difference of RBCs while the lattice Boltzmann flux solver offers reduced computational runtimes through GPU parallelisation and enabling the employment of non-uniform meshes. This coupled model is used to simulate RBC dynamics and predictions are compared with existing experimental measurements. The simulations successfully predict tumbling, tank-treading, swinging and intermittent behaviour of an RBC in shear flow, and demonstrate the capability of the model in capturing in-flow RBC behaviours.