cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multiwavelength analysis of the young open cluster NGC 2362
Creators: name: Delgado, A. J.
name: Gonzalez-Martin, O.
name: Alfaro, E. J.
name: Yun, J. Lin
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a multiwavelength analysis of the young open cluster NGC 2362. UBVRcIc CCD photometric observations, together with available data in the Chandra data base, near infrared data from the Two Micron All Sky Survey (2MASS), and recently published Halpha spectroscopy were used to get information about the evolutionary stage of the cluster and the main physical properties of its stellar content. Cluster membership is estimated for every individual star by means of ZAMS and isochrone fitting. The cluster is confirmed to host a richly populated pre-main sequence (PMS), and to contain a large amount of X-ray emitting stars, which reach from the PMS members of GK spectral type, up to the most luminous OB type main sequence (MS) members. The PMS cluster members show no significant age spread, and the comparison to both PMS and post-MS isochrones suggests a younger age for the more massive MS than for lower mass PMS members. The analysis allows to asses the validity of currently used pre-main sequence evolutionary models, and supports the suggestion of a well defined positive correlation of the X-ray emission from PMS stars with their bolometric luminosity. Clear differences are found on the other hand, between the X-ray activity properties of MS and PMS cluster members, both in the relation between X-ray luminosity and bolometric luminosity, and in spectral properties as well.
description: 1 gzipped file: 1 tex file with 9 pages text. 5 ps files with figures. Submitted to Astrophysical Journal
Der digitale Habitus
Creators: name: Biermann, Ralf
Publisher: name: Medienimpulse
Year: 2023

description: Der Beitrag von Ralf Biermann zeigt wie ausgehend vom Habitus-Konzept Pierre Bourdieus und angesichts von Digitalisierung und Automatisierung eine Erweiterung der medienpädagogischen Theoriebildung um den digitalen Habitus notwendig ist. Dabei wird et al. das Zusammenspiel von Medien und Habitus angesichts der Algorithmisierung unserer Lebenswelten diskutiert, um etwa im Blick auf Online-Handel, Gesichtserkennungssoftware oder Bonitätsprüfungen der These Raum zu geben, dass Computer und Algorithmen so weit in unsere sozialen Welten eingreifen, dass ihnen der Status von Akteuren zugesprochen werden kann. Damit wird auch der Bereich gesellschaftlicher Handlungen und Praktiken um die Kultur der Digitalität erweitert.


 
description: Medienimpulse, Bd. 61 Nr. 4 (2024): Habitus / Medialer Habitus / Digitaler Habitus
Chiral-Odd Generalized Parton Distributions and Transversity in Light-Front Constituent Quark Models
Creators: name: Pincetti, M.
name: Pasquini, B.
name: Boffi, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the general framework to calculate chiral-odd generalized parton distributions in the overlap representation using the Fock-state decomposition in the transverse spin basis. In the forward limit we derive the transversity distribution, the tensor charge and the angular momentum sum rule for quarks with transverse polarization in an unpolarized nucleon. Numerical results are obtained by applying the formalism to the case of light-cone wavefunctions of constituent quark models.
description: 8 pages, 3 figures. Invited talk at the "Advanced Studies Institute on SYMMETRIES AND SPIN" (SPIN-Praha-2006), 19-26 July, 2006, Prague. To be pubblished in Czechoslovak Journal of Physics. Some references added
Analytical Solution for the Deformation of a Cylinder under Tidal Gravitational Forces
Creators: name: Scheithauer, S.
name: Lämmerzahl, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Classical Physics (physics.class-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Quite a few future high precision space missions for testing Special and General Relativity will use optical resonators which are used for laser frequency stabilization. These devices are used for carrying out tests of the isotropy of light (Michelson-Morley experiment) and of the universality of the gravitational redshift. As the resonator frequency not only depends on the speed of light but also on the resonator length, the quality of these measurements is very sensitive to elastic deformations of the optical resonator itself. As a consequence, a detailed knowledge about the deformations of the cavity is necessary. Therefore in this article we investigate the modeling of optical resonators in a space environment. Usually for simulation issues the Finite Element Method (FEM) is applied in order to investigate the influence of disturbances on the resonator measurements. However, for a careful control of the numerical quality of FEM simulations a comparison with an analytical solution of a simplified resonator model is beneficial. In this article we present an analytical solution for the problem of an elastic, isotropic, homogeneous free-flying cylinder in space under the influence of a tidal gravitational force. The solution is gained by solving the linear equations of elasticity for special boundary conditions. The applicability of using FEM codes for these simulations shall be verified through the comparison of the analytical solution with the results gained within the FEM code.
description: 23 pages, 3 figures
High Throughput Bioreactor Validation and Use in Mammalian Cell Culture Process Change Studies Utilizing Gene Expression Data
Creators: name: Hanson, Michael
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: high throughput bioprocessing
optical sensor
disposable bioreactor
gene expression
DNA microarray
cell culture process changes
Engineering, Chemical (0542)

description: During upstream bioprocess development, a high producing production organism is selected, an appropriate growth media is formulated, and optimal bioreactor growth conditions and cultivation schemes are established. Hundreds of experiments must be carried out to accomplish these objectives. The first aspect of my dissertation research was to improve the tools available for carrying out this multitude of development experiments. First, optical sensors for dissolved oxygen (DO) and pH were compared to traditional electrochemical probes during hybridoma cell culture in a 5 L bioreactor. There was a 98.7 and 99.7% correlation between our DO and pH optical sensors and the electrochemical probes, respectively, throughout the duration of the experiment. These optical sensors were also employed in a high throughput bioreactor (HTBR) system capable of simultaneously carrying out twelve 35 ml cell culture experiments. We validated the HTBR for use in process change studies by testing bioreactor reproducibility in terms of sensor and cell culture data. We also showed that sensor instrumentation had no impact on cell physiology at the transcript level. Cell culture comparisons were carried out between the HTBR, a 5 L lab scale stirred-tank bioreactor, and a disposable bag bioreactor. Cells grew similarly in all three systems, but achieved a higher productivity in the bag bioreactor. In addition to during development, changes are made at the cell culture level throughout the biopharmaceutical product lifetime to allow for improvements such as enhanced expression systems, different media components, increased yields, scale-up, and new technologies. The second aspect of my dissertation research was to evaluate the utility of using DNA microarrays to screen cell culture process changes for their potential to adversely affect product quality. We studied the impact of sodium butyrate addition, increased osmolality, and change in bioreactor type. All process changes resulted in significant differences in gene expression and culture behavior. In summary, we have shown that DNA microarrays can be used to profile the transcriptional response of industrially relevant cell culture process changes.
rbcL sequence.docx
Creators: name: Khan, Muhammad Naeem
name: Khan, Sultan Habibullah
name: Ghouri, Muhammad Zubair
name: Ahmad, Aftab
name: Munawar, Nayla
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310803
subject: Plant cell and molecular biology

description: Molecular fingerprinting of Pakistani almonds using chloroplast DNA sequences of rbcL and matK genes
Fracture Testing and Simultaneous Confocal Microscopy of Bovine Arterial Tissue
Creators: name: Spiegler, Julian Christopher
Publisher: name: Maryland Shared Open Access Repository
Year: 2011
Subjects: aorta
bovine
confocal
fracture
stress
toughness

description: Blunt injury to the aorta and other arteries remains a leading cause of death in automobile collisions. We sought to study the fracture mechanics of the bovine descending thoracic aorta and intercostal arteries to gain an understanding of the mechanisms of failure of the arterial wall. Fracture tests were performed on the bovine aorta at a series of locations and orientations. These tests were performed in a medium of phosphate-buffered saline (PBS), and compared to the use of deionized (DI) water. It was discovered that the average fracture strength of specimens stored and tested in DI water was higher than that of corresponding specimens in PBS. It was also found that fracture strength in distal aorta wall samples increased nonlinearly from the fracture strength at the aortic isthmus. A tensile testing system was created in order to test intercostal artery specimens while simultaneously viewing their microstructure using a confocal laser scanning microscope. This technique allowed for a unique perspective of the failure mechanism of the arterial wall.
MECHANICAL AND PHYSICAL CHARACTERIZATION OF PUMICE/EPOXY STOCHASTIC CELLULAR SOLIDS
Creators: name: Fleischer, Corey Adam
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Engineering, Mechanical (0548)
Engineering, Materials Science (0794)
cellular solids
blast mitigation
energy absorption

description: Popular cellular solids including: metallic, ceramic and polymer foams, honeycombs and micro-truss structures are all commonly utilized for core materials within sandwich panels. The cellular core offers a unique strain softening failure mechanism allowing more energy to be absorbed while transferring relatively low stress to supporting structures. Currently most cellular solid sandwich panel cores require multiple advanced manufacturing procedures that drive increasing cost for applications. Pumice is a low cost naturally occurring cellular solid that exhibits a microstructure very similar to advanced ceramic foams. This paper presents a manufacturing process for producing composite panels of pumice stones and epoxy binder. This cost and weight efficient structure is evaluated through mechanical testing and investigated for possible applications towards blast mitigation. Mechanical performance at various relative densities will be presented and compared to currently available core materials using traditional scaling models. Shock physics hydro-code simulations will be presented to evaluate pumice's potential within large scale blast mitigation applications.
An Analysis by Synthesis Method that Allows Accurate Spatial Modeling of Thickness of Cortical Bone from Clinical QCT
Creators: name: Reinhold, Stefan
name: Damm, Timo
name: Büsse, Sebastian
name: Gorb, Stanislav N.
name: Glüer, Claus-C.
name: Koch, Reinhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Osteoporosis is a skeletal disorder that leads to increased fracture risk due to decreased strength of cortical and trabecular bone. Even with state-of-the-art non-invasive assessment methods there is still a high underdiagnosis rate. Quantitative computed tomography (QCT) permits the selective analysis of cortical bone, however the low spatial resolution of clinical QCT leads to an overestimation of the thickness of cortical bone (Ct.Th) and bone strength. We propose a novel, model based, fully automatic image analysis method that allows accurate spatial modeling of the thickness distribution of cortical bone from clinical QCT. In an analysis-by-synthesis (AbS) fashion a stochastic scan is synthesized from a probabilistic bone model, the optimal model parameters are estimated using a maximum a-posteriori approach. By exploiting the different characteristics of in-plane and out-of-plane point spread functions of CT scanners the proposed method is able assess the spatial distribution of cortical thickness. The method was evaluated on eleven cadaveric human vertebrae, scanned by clinical QCT and analyzed using standard methods and AbS, both compared to high resolution peripheral QCT (HR-pQCT) as gold standard. While standard QCT based measurements overestimated Ct.Th. by 560% and did not show significant correlation with the gold standard ($r^2 = 0.20,\, p = 0.169$) the proposed method eliminated the overestimation and showed a significant tight correlation with the gold standard ($r^2 = 0.98,\, p < 0.0001$) a root mean square error below 10%.
description: Accepted for publication in MICCAI 2020 conference
Boosting in Univariate Nonparametric Maximum Likelihood Estimation
Creators: name: Li, YunPeng
name: Ye, ZhaoHui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Nonparametric maximum likelihood estimation is intended to infer the unknown density distribution while making as few assumptions as possible. To alleviate the over parameterization in nonparametric data fitting, smoothing assumptions are usually merged into the estimation. In this paper a novel boosting-based method is introduced to the nonparametric estimation in univariate cases. We deduce the boosting algorithm by the second-order approximation of nonparametric log-likelihood. Gaussian kernel and smooth spline are chosen as weak learners in boosting to satisfy the smoothing assumptions. Simulations and real data experiments demonstrate the efficacy of the proposed approach.
MECHANICAL AND MICROSTRUCTURAL CHARACTERIZATION OF COPPER MICROSAMPLES AFTER COLD DRAWING
Creators: name: Cheng, Christopher Lee
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Engineering, Materials Science (0794)
Engineering, Mechanical (0548)
copper
cold drawing
microsamples
texture

description: Copper is a robust elemental metal with favorable mechanical, material, electrical, thermal, and alloying properties. Copper have been exploited mechanically and constitutively for applications that range from munitions for firearms, building material found in roofing and plumbing, electrical wire/interconnects in electrification and integrated circuits, germicide protection, cookware, and many other widely varying products. In munitions, copper is widely used as a bullet jacketing material protecting the steel core and lead slug during rifling, flight to the target, and delivery at target. In this study, an approach is developed to investigate and link the mechanical and microstructural evolution of the cold drawing of a copper jacket. Copper jackets are fabricated in a multi-step drawing process where an as-received copper plate is transformed into a 'cup', and then a pre-swaged jacket for the bullet. The drawing process causes deformation and rotation in the material, which develops anisotropy and texture that varies along the length of the copper jacket. Microsample test specimens have been extracted longitudinally from the copper jacket, with nominal dimensions of 3 mm x 1 mm and a gage cross-section of ~150 ?m square by electro-discharge machining. Metallographic analysis performed on the matching gage section area of each microsample revealed high levels of cold working as a result of the drawing process. Qualitative x-ray diffraction performed on the gripping ends showed strong texturing and evolution in texture for the copper microsamples longitudinally as a function of location on the jacket. Nanoindentation experiments mapped Young's Modulus and Hardness information on the gage section of the copper microsamples as a function of position. The microhardness showed no variability in the through-thickness of the microsample gage section and supported the Hardness trends of the nanoindentation results. Microsample tensile testing provided Young's Modulus, Yield Strength, and Ultimate Tensile Strength as a function of location on the copper jacket.
Manuscript preparation
Creators: name: Fonnes, Siv
name: Öberg, Stina
Publisher: name: Zenodo
Year: 2024
Subjects: Reporting
Manuscript
Biomedical articles

description: This includes the summarising slides from the ph.d. course 'Writing a medical science manuscript' on 'Manuscript preparation' held by Siv Fonnes and Stina Öberg on October 9, 2024.
Investigations of FFF 3D-printed zirconium dioxide implants = Untersuchungen an mittels FFF-3D-gedruckten Implantaten aus Zirkoniumdioxid
Creators: name: Roser, Christoph
name: Nötzel, Dorit
name: Eickhoff, Ralf
name: Scholz, Mark
name: Hanemann, Thomas
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2024

description: Stableandreliableboneanchorageiscrucialindentistry.Zirconiumdioxide(ZrO2)isapromisingalternativetotitaniumduetoitsaesthetics,highbiocompatibility,reducedbiofilmformation,lowerwear,andlessinflammation.FusedFilamentFabrication(FFF)3Dprintingoffersdesignflexibilityandcost-effectiveproduction.WeaimtouseFFFtocreatepatient-specific,root analogimplantstailoredtobonestructure,reducingtheneedforpredrilling.Furthermore,FFF3Dprintingallowsdirectintegrationofsurfacemodificationstoenhanceosteointegration,eliminatingextensivepost-processing.
Tuning the performance of a micrometer-sized Stirling engine through reservoir engineering
Creators: name: Roy, Niloyendu
name: Leroux, Nathan
name: Sood, A K
name: Ganapathy, Rajesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Colloidal heat engines are paradigmatic models to understand the conversion of heat into work in a noisy environment - a domain where biological and synthetic nano/micro machines function. While the operation of these engines across thermal baths is well-understood, how they function across baths with noise statistics that is non-Gaussian and also lacks memory, the simplest departure from equilibrium, remains unclear. Here we quantified the performance of a colloidal Stirling engine operating between an engineered \textit{memoryless} non-Gaussian bath and a Gaussian one. In the quasistatic limit, the non-Gaussian engine functioned like an equilibrium one as predicted by theory. On increasing the operating speed, due to the nature of noise statistics, the onset of irreversibility for the non-Gaussian engine preceded its thermal counterpart and thus shifted the operating speed at which power is maximum. The performance of nano/micro machines can be tuned by altering only the nature of reservoir noise statistics.
description: 17 pages, 3 Figures
Die Notwendigkeit einer kritischen medienpädagogischen Praxis im Kontext von medialem Habitus und Habitat
Creators: name: Nilles, Ken
Publisher: name: Medienimpulse
Year: 2023

description: Für Pierre Bourdieu ist jeder Lebensstil auch Ausdruck von gesellschaftlichen Ungleichheiten, die sich in diesen eingeschrieben haben. Bourdieu bezeichnete diese „Inkorporation“ als Habitus und entwickelte damit ein Konzept, das die sozialwissenschaftlichen Debatten bis heute prägt. Im folgenden Beitrag soll der Habitus – und konkreter der mediale Habitus – als Ausgangspunkt dienen, um eine (medien-)pädagogische Debatte zu eröffnen. Dabei wird von der These ausgegangen, dass Habitus – inklusive medialer Habitus – und Habitat in einer sich wechselseitig bedingenden Beziehung stehen. Der Rückgriff auf die sozialräumlichen Annahmen von Martina Löw erlaubt es in diesem Zusammenhang auf die Prozesshaftigkeit gesellschaftlicher Strukturen einzugehen und die Problematik von sich reproduzierenden exklusiven Räumen zu diskutieren. Die Auseinandersetzung mit dieser Problematik ermöglicht es, die Notwendigkeit einer kritischen medienpädagogischen Praxis zu unterstreichen.
description: Medienimpulse, Bd. 61 Nr. 4 (2024): Habitus / Medialer Habitus / Digitaler Habitus
Workload reduction of a generalized Brownian network
Creators: name: Harrison, J. M.
name: Williams, R. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J60, 60K30, 90B15, 90B36 (Primary)

description: We consider a dynamic control problem associated with a generalized Brownian network, the objective being to minimize expected discounted cost over an infinite planning horizon. In this Brownian control problem (BCP), both the system manager's control and the associated cumulative cost process may be locally of unbounded variation. Due to this aspect of the cost process, both the precise statement of the problem and its analysis involve delicate technical issues. We show that the BCP is equivalent, in a certain sense, to a reduced Brownian control problem (RBCP) of lower dimension. The RBCP is a singular stochastic control problem, in which both the controls and the cumulative cost process are locally of bounded variation.
description: Published at http://dx.doi.org/10.1214/105051605000000458 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Photometric and kinematical study of nearby groups of galaxies around IC 65 and NGC 6962
Creators: name: Vennik, J.
name: Tago, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the structure, galaxy content and kinematics of a sparse, probably collapsing group around IC 65 and an evolved rich group around NGC 6962
description: Poster contribution on 2 pages with 2 figures to be published in ESO Astrophysics Symposia: "Groups of Galaxies in the Nearby Universe", eds. I. Saviane, V. Ivanov, J. Borissova
Spontaneous Breaking of Rotational Symmetry in Rotating Solitons - a Toy Model of Excited Nucleons with High Angular Momentum
Creators: name: Hen, Itay
name: Karliner, Marek
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the phenomenon of spontaneous breaking of rotational symmetry (SBRS) in the rotating solutions of two types of baby Skyrme models. In the first the domain is a two-sphere and in the other, the Skyrmions are confined to the interior of a unit disk. Numerical full-field results show that when the angular momentum of the Skyrmions increases above a certain critical value, the rotational symmetry of the solutions is broken and the minimal energy configurations become less symmetric. We propose a possible mechanism as to why SBRS is present in the rotating solutions of these models, while it is not observed in the `usual' baby Skyrme model. Our results might be relevant for a qualitative understanding of the non-spherical deformation of excited nucleons with high orbital angular momentum.
description: RevTex, 9 pages, 9 figures. Added content
About Orientifold Planar Equivalence on the Lattice
Creators: name: Patella, Agostino
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The orientifold planar equivalence is the equivalence in the large-N limit of the bosonic sectors of the super Yang-Mills and the QCD with a quark in the antisymmetric representation. I give a sketch of the proof of the orientifold planar equivalence in the strong-coupling and large-mass phase on the lattice. It is still matter of discussion, if its validity extends also in the continuum limit.
description: 7 pages, 4 EPS figures (including PSlogo), uses PoS
Transfer of characters for discrete series representations of the unitary groups in the equal rank case via the Cauchy-Harish-Chandra integral
Creators: name: Merino, Allan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 22E45 (Primary), 22E46, 22E30 (Secondary)

description: As conjectured by T. Przebinda, the transfer of characters in the Howe's correspondence should be obtained via the Cauchy-Harish-Chandra integral. In this paper, we prove that the conjecture holds for the dual pair $(G = U(p, q), G' = U(r, s))$, $p+q = r+s$, starting with a discrete series representation $Π$ of $\widetilde{U}(p, q)$.
description: 32 pages
Swimming in curved space or The Baron and the cat
Creators: name: Avron, J. E.
name: Kenneth, O.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the swimming of non-relativistic deformable bodies in (empty) static curved spaces. We focus on the case where the ambient geometry allows for rigid body motions. In this case the swimming equations turn out to be geometric. For a small swimmer, the swimming distance in one stroke is determined by the Riemann curvature times certain moments of the swimmer.
description: 19 pages 6 figures
International Trade Finance from the Origins to the Present: Market Structures, Regulation and Governance
Creators: name: Accominotti, Olivier
name: Ugolini, Stefano
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Finance (q-fin.GN)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Economics and business

description: This chapter presents a history of international trade finance - the oldest domain of international finance - from its emergence in the Middle Ages up to today. We describe how the structure and governance of the global trade finance market changed over time and how trade credit instruments evolved. Trade finance products initially consisted of idiosyncratic assets issued by local merchants and bankers. The financing of international trade then became increasingly centralized and credit instruments were standardized through the diffusion of the local standards of consecutive leading trading centres (Antwerp, Amsterdam, London). This process of market centralization/product standardization culminated in the nineteenth century when London became the global centre for international trade finance and the sterling bill of exchange emerged as the most widely used trade finance instrument. The structure of the trade finance market then evolved considerably following the First World War and disintegrated during the interwar de-globalization and Bretton Woods period. The reconstruction of global trade finance in the post-1970 period gave way to the decentralized market structure that prevails nowadays.
Magnetism at the interface of non-magnetic Cu and C$_{60}$
Creators: name: Sharangi, Purbasha
name: Gargiani, Pierluigi
name: Valvidares, Manuel
name: Bedanta, Subhankar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The signature of magnetism without a ferromagnet in a non-magnetic heterostructure is novel as well as fascinating from fundamental research point of view. It has been shown by Al'Mari et al: that magnetism can be induced at the interface of Cu/C60 due to change in density of states. However, the quantification of such interfacial magnetic moment has not been performed yet. In order to quantify the induced magnetic moment in Cu, we have performed X-ray magnetic circular dichroism (XMCD) measurements on Cu/C$_{60}$ multilayers. We have observed room temperature ferromagnetism in Cu/C$_{60}$ stack. Further XMCD measurements show that ~0.01 $μ_B$/atom magnetic moment has been induced in Cu at the Cu/C$_{60}$ interface.
description: 5 pages, 5 figures
Ökumene in den zwanziger Jahren - Adolf Deißmann und sein Umfeld
Creators: name: Raiser, Konrad
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 66 Nr. 3 (2017): Ökumenische Rundschau, Band 66, Heft 3
Is Image Encoding Beneficial for Deep Learning in Finance? An Analysis of Image Encoding Methods for the Application of Convolutional Neural Networks in Finance
Creators: name: Wang, Dan
name: Wang, Tianrui
name: Florescu, Ionuţ
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Machine Learning (cs.LG)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: In 2012, SEC mandated all corporate filings for any company doing business in US be entered into the Electronic Data Gathering, Analysis, and Retrieval (EDGAR) system. In this work we are investigating ways to analyze the data available through EDGAR database. This may serve portfolio managers (pension funds, mutual funds, insurance, hedge funds) to get automated insights into companies they invest in, to better manage their portfolios. The analysis is based on Artificial Neural Networks applied to the data.} In particular, one of the most popular machine learning methods, the Convolutional Neural Network (CNN) architecture, originally developed to interpret and classify images, is now being used to interpret financial data. This work investigates the best way to input data collected from the SEC filings into a CNN architecture. We incorporate accounting principles and mathematical methods into the design of three image encoding methods. Specifically, two methods are derived from accounting principles (Sequential Arrangement, Category Chunk Arrangement) and one is using a purely mathematical technique (Hilbert Vector Arrangement). In this work we analyze fundamental financial data as well as financial ratio data and study companies from the financial, healthcare and IT sectors in the United States. We find that using imaging techniques to input data for CNN works better for financial ratio data but is not significantly better than simply using the 1D input directly for fundamental data. We do not find the Hilbert Vector Arrangement technique to be significantly better than other imaging techniques.
description: 12 pages, 7 figures, 13 tables in the main content. IEEE Internet of Things Journal
Goth Brunch: Documentation as Object, Event as Image
Creators: name: Farley, Michael Anthony
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: Angst
Documentation
Exhibition
Social Media

description: GOTH BRUNCH: DOCUMENTATION AS OBJECT, EVENT AS IMAGE is an exploration of documentation as a medium unto itself with capacity for subjective experience. My research has involved synthesizing the archival processes of social media, photography, curatorial practice, and surveillance as an experiment in constructing and disseminating identity and narrative. With content informed by semi-autobiographical anecdotes, inside jokes, teen angst, image/object relations, and web culture, GOTH BRUNCH attempts to highlight the successes and failures of indexing culture, from the mundane to the profane.
Content-Based Textual File Type Detection at Scale
Creators: name: Del Bonifro, Francesca
name: Gabbrielli, Maurizio
name: Zacchiroli, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Programming language detection is a common need in the analysis of large source code bases. It is supported by a number of existing tools that rely on several features, and most notably file extensions, to determine file types. We consider the problem of accurately detecting the type of files commonly found in software code bases, based solely on textual file content. Doing so is helpful to classify source code that lack file extensions (e.g., code snippets posted on the Web or executable scripts), to avoid misclassifying source code that has been recorded with wrong or uncommon file extensions, and also shed some light on the intrinsic recognizability of source code files. We propose a simple model that (a) use a language-agnostic word tokenizer for textual files, (b) group tokens in 1-/2-grams, (c) build feature vectors based on N-gram frequencies, and (d) use a simple fully connected neural network as classifier. As training set we use textual files extracted from GitHub repositories with at least 1000 stars, using existing file extensions as ground truth. Despite its simplicity the proposed model reaches 85% in our experiments for a relatively high number of recognized classes (more than 130 file types).
Impact of Activated Carbon on Benthic Organism Toxicity and PCB Loss From Sediment
Creators: name: Jerscheid, Jennifer Lynn
Publisher: name: Maryland Shared Open Access Repository
Year: 2010
Subjects: Activated Carbon
benthic toxicity
Grasse River
Polychlorinated Biphenyls

description: Prior research has demonstrated that amending sediment with activated carbon (AC) reduces contaminant bioavailability by strongly binding organic and inorganic contaminants. An ongoing pilot scale study involving adding AC to a polychlorinated biphenyl (PCB)-impacted river is currently underway in Grasse River (GR) in Massena, NY that is evaluating the impact of AC on PCB bioavailability in the field. This research had two main goals involving two evaluation aspects of the technology in the field.  The first was to evaluate potential impacts of AC on benthic invertebrates through an analysis of laboratory exposure data and field observations to assess possible toxicity to AC when added in sediment. Testing included laboratory toxicity testing, worm recovery data from field and laboratory bioaccumulation studies, and benthic community studies performed in GR before and after AC addition. The second was to evaluate PCB loss from sediments over time in field sediment cores due to either AC amendment as well as microbial dechlorination. Experimentation showed both that AC reduces PCB extractability by 45% and that dechlorination was evident in GR sediment cores. All findings suggest AC to be an efficient, cost-effective remedial technique in the removal of PCBs from river sediment
Capacity to manage water resources : perspective for the Sechelt Nation
Creators: name: Boudreau, Sherry L.
Publisher: name: University of British Columbia
Year: 2009

description: The capacity to determine the future of any community depends on the extent of options available. This thesis describes the historical development of control over water resources, and how this impacts on the Sechelt Indian Bands (SIB) capacity to determine their future interests. Water management is a concern for the SIB both in terms of their being able to determine their future development, but also for non-consumptive issues such as maintenance of their fisheries. The construction of management authorities via legislation has curtailed the capacity for the SIB to define the development of Sechelt lands and participate in the management of water. The Sechelt Indian Band Self-Government Act was negotiated by the Sechelt people to expand control over the development of Band lands and resources. This municipal model of self-government, although it affords some benefits with respect to community access of water, is constrained by the continuance of licensed priority allocations, overlapping bureaucracies, and the Provinces focus on program (versus area) management. The Provincial the Chapman/Gray Integrated Watershed Management process, was reviewed to ascertain whether, by their participation in this process, the SIB has wrested any control over water and water management. The discussion highlights that: within the process extractive industries are still a priority, this can be a prohibitively protracted experience, and that the responsibility conferred on the water purveyor does not enable the authority to deliver quality water. This affects the Bands capacity to actualize their community vision.
MULTI-SCALE NUMERICAL STUDY OF NANOPARTICLE TRANSPORT IN DEFORMABLE TISSUES DURING AN INFUSION PROCESS
Creators: name: Su, Di
Publisher: name: Maryland Shared Open Access Repository
Year: 2011
Subjects: Deposition
Hyperthermia
Infusion
Nanoparticle transport
Tissue deformation

description: Nanoparticles have attracted growing research interest in novel hyperthermia treatments of cancers due to their ability to generate impressive levels of heat when excited by an external alternating magnetic field. Intratumoral injection by means of needle is an important method to deliver nanoparticles in tumors, and the resulting distribution of the particles is a critical factor determining the distribution of temperature elevations. In order to maximize the outcome of magnetic nanoparticle hyperthermia treatment, it is essential to acquire knowledge and understanding of the transport of nanoparticles and nanofluid in biological tissues during and after an infusion process.  A multiscale model is developed in this dissertation that consists of a macroscale model for nanofluid flow, tissue deformation, nanoparticle convection and diffusion, as well as nanoparticle deposition in porous tissues, and a particle trajectory tracking model that considers particle-surface interactions and the resulting effect of particle deposition. The integration of these two models at different scales enables the study of the behavior of nanoparticle deposition on the cellular structure, the formation of backflow and the variation of tissue porosity induced by an infusion, the spreading shape of nanofluid, and the transport mechanism of nanoparticles in a tumor. The particle deposition rate coefficient, the shapes of nanofluid distribution volume, the length of backflow, and the distribution of nanoparticle concentration are predicted for a wide range of injection conditions. The results show that tissue deformation and particle binding to the cell surface are leading mechanisms that substantially affect the particle concentration distribution and the nanofluid spreading shape after an intratumoral injection. Infusion-induced tissue deformation results in backflow that causes nanofluid to flow back and infiltrate along the needles track, thus leading to an irregular shape of the nanofluid spreading. Tissue deformation also alters the pore size near the injection site, and thereby facilitates particle penetration through the tissue. Particle binding to the cellular structure, which reduces the particle concentration in the fluid phase, is found to be the leading mechanism causing the non-uniform distribution of the nanoparticles after an injection. The rate of particle binding to the cellular structure can be reduced by increasing the local interstitial fluid velocity, tissue porosity, and surface charge of the particles. Simulations are also performed under various infusion conditions, and the effects of injection rate, needle sizes, tissue elastic properties, and injection amounts on the spatial distribution of nanoparticles in tumors are quantified.
NA (JA) GENAU – die intelligente humorvolle TV-Sendung auf OKTO
Creators: name: Tradinik, Ernst
Publisher: name: Medienimpulse
Year: 2023

description: Die TV-Sendung "NA (JA) GENAU" feiert ihr zehnjähriges Bestehen und ist inzwischen mehrfach preisgekrönt. Die inklusive Sendereihe ermöglicht Menschen mit (Lern-)Behinderung und/oder psychischer Erkrankung, journalistische Arbeit und Moderation vor der Kamera zu erlernen und in der Praxis umzusetzen. Die ersten Sendungen wurden im Studio aufgenommen, später kamen Außendrehaufnahmen hinzu. Die Ziele der Arbeit sind, die Öffentlichkeit für diese Personengruppe zu sensibilisieren, Vorurteile abzubauen und ihnen die Möglichkeit zu bieten, journalistisch tätig zu sein. Die Arbeit mit "NA (JA) GENAU" umfasst verschiedene Bereiche, darunter Journalismus, Entwicklung von Kompetenzen und Selbstbemächtigung sowie Förderung von Selbstbewusstsein, Öffentlichkeit und Partizipation. Die Sendung bietet auch Kinogespräche in Kooperation mit den Breitenseer Lichtspielen an. Inklusive Medienarbeit wird als elektronische Medienarbeit von und mit Menschen mit (Lern-)Behinderung und/oder psychischer Erkrankung definiert. Die Zusammenarbeit mit Institutionen gestaltet sich oft schwierig, da der Blick auf Defizite orientiert ist. Die Arbeit an der Sendung zeigt, dass inklusive Medienarbeit durchaus erfolgreich in kommerziellen und öffentlich-rechtlichen TV-Sendern integriert werden kann. Der Autor betont die Bedeutung von Mut, inklusive Sendeformate zuzulassen, und sieht die Sendung als Motivation für Menschen mit (Lern-)Behinderung, sich in Medienberufen zu sehen. Es wird darauf hingewiesen, dass sowohl die Gesellschaft als auch die Betroffenen selbst aktiv werden müssen, um Rahmenbedingungen für die Teilnahme an solchen Arbeitsfeldern zu schaffen.
description: Medienimpulse, Bd. 61 Nr. 4 (2024): Habitus / Medialer Habitus / Digitaler Habitus
The Clustering of Massive Halos
Creators: name: Wetzel, Andrew R.
name: Cohn, J. D.
name: White, Martin
name: Holz, Daniel E.
name: Warren, Michael S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The clustering properties of dark matter halos are a firm prediction of modern theories of structure formation. We use two large volume, high-resolution N-body simulations to study how the correlation function of massive dark matter halos depends upon their mass and formation history. We find that halos with the lowest concentrations are presently more clustered than those of higher concentration, the size of the effect increasing with halo mass; this agrees with trends found in studies of lower mass halos. The clustering dependence on other characterizations of the full mass accretion history appears weaker than the effect with concentration. Using the integrated correlation function, marked correlation functions, and a power-law fit to the correlation function, we find evidence that halos which have recently undergone a major merger or a large mass gain have slightly enhanced clustering relative to a randomly chosen population with the same mass distribution.
description: 10 pages, 8 figures; text improved, references and one figure added; accepted for publication in ApJ
Bosonic quantum error correction codes in superconducting quantum circuits
Creators: name: Cai, W.
name: Ma, Y.
name: Wang, W.
name: Zou, C. -L.
name: Sun, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum information is vulnerable to environmental noise and experimental imperfections, hindering the reliability of practical quantum information processors. Therefore, quantum error correction (QEC) that can protect quantum information against noise is vital for universal and scalable quantum computation. Among many different experimental platforms, superconducting quantum circuits and bosonic encodings in superconducting microwave modes are appealing for their unprecedented potential in QEC. During the last few years, bosonic QEC is demonstrated to reach the break-even point, i.e. the lifetime of a logical qubit is enhanced to exceed that of any individual components composing the experimental system. Beyond that, universal gate sets and fault-tolerant operations on the bosonic codes are also realized, pushing quantum information processing towards the QEC era. In this article, we review the recent progress of the bosonic codes, including the Gottesman-Kitaev-Preskill codes, cat codes, and binomial codes, and discuss the opportunities of bosonic codes in various quantum applications, ranging from fault-tolerant quantum computation to quantum metrology. We also summarize the challenges associated with the bosonic codes and provide an outlook for the potential research directions in the long terms.
description: 23 pages, 10 figures, 1 table
Expanding Recycling Horizons: USDA Forest Service Research
Creators: name: Service, Forest
name: Service, Forest
Publisher: name: Unknown
Year: 1991
Subjects: Environmental Economics and Policy
Research and Development/Tech Change/Emerging Technologies
Resource /Energy Economics and Policy

description: Excerpts from the report: The USDA Forest Service's stewardship responsibilities include ensuring wise and efficient use of the Nation's timber resources. Our interest in recycling as a key method of conserving resources began over 40 years ago. Expanding recycling technology fits well with our long history of wood products research. In fact, Congress mandated our participation in recycling research in the National Forest Management Act of 1976. Since then, the Forest Service has taken an active role in gaining the knowledge needed for developing technologies to convert paper and wood wastes into useable products.
Modeling and Design of Halide Chemical Vapor Deposition for Silicon Carbide Epitaxial Film Growth
Creators: name: Wang, Rong
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Engineering, Mechanical (0548), Engineering, Materials Science (0794)

description: Silicon carbide (SiC) is a superior material for electronic and optoelectronic devices functioning under harsh environment because of its excellent properties. Among multiple processes involved in the fabrication of silicon carbide-based devices, one important step is to deposit SiC films on substrates to acquire the desired functionality. Currently, halide chemical vapor deposition emerges as a potent technique for growing silicon carbide epitaxial layers with a high deposition rate in the range of 50-300 μm/hr. Experimental studies of the silicon carbide halide chemical vapor deposition process suggest that the temperature field, gas velocity field, gas-phase and surface chemistry in the reactor has profound influence on the deposition rate, the quality, and the properties of the as-deposited epitaxial films. In this dissertation, a comprehensive mathematical model is developed for silicon carbide halide chemical vapor deposition process including gas dynamics, heat and mass transfer, gas-phase and surface chemical reaction mechanism, and radiofrequency induction heating. The governing equation system of this model is discretized by finite volume method, and solved by iterative solver to predict the thermal and flow field, gas composition and film deposition rate. Two-dimensional axisymmetric simulations of the deposition process in a horizontal hot-wall reactor using silicon tetrachloride, propane, and hydrogen as precursors are performed over a wide range of operational parameters to quantify the effects of deposition temperature, precursor flow rate and reactor configuration. Special attention is directed to the etching of silicon carbide films by hydrogen chloride and its impact on the film deposition rate at different processing conditions. Simplified chemical reaction mechanism is obtained using two-dimensional study, which makes the threedimensional simulation feasible using available computing resource. Threedimensional simulation is performed to address issues such as the film uniformity and the effects of buoyancy flow and deposition pressure on the film growth. Modified reactor design and process parameters are examined for controlling the reactive gas flow in a reactor chamber and enhancing the deposition rate. Our simulation shows that the formation of hydrogen chloride and the associated etching effect can be reduced by employing a modified gas delivery system.