cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Widespread HCO emission in the M82's nuclear starburst
Creators: name: Garcia-Burillo, S.
name: Martin-Pintado, J.
name: Fuente, A.
name: Usero, A.
name: Neri, R.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a high-resolution (~ 5'') image of the nucleus of M82 showing the presence of widespread emission of the formyl radical (HCO). The HCO map, the first obtained in an external galaxy, reveals the existence of a structured disk of ~ 650 pc full diameter. The HCO distribution in the plane mimics the ring morphology displayed by other molecular/ionized gas tracers in M82. More precisely, rings traced by HCO, CO and HII regions are nested, with the HCO ring lying in the outer edge of the molecular torus. Observations of HCO in galactic clouds indicate that the abundance of HCO is strongly enhanced in the interfaces between the ionized and molecular gas. The surprisingly high overall abundance of HCO measured in M82 (X(HCO) ~ 4x10^{-10}) indicates that its nuclear disk can be viewed as a giant Photon Dominated Region (PDR) of ~ 650 pc size. The existence of various nested gas rings, with the highest HCO abundance occurring at the outer ring (X(HCO) ~ 0.8x10^{-9}), suggests that PDR chemistry is propagating in the disk. We discuss the inferred large abundances of HCO in M82 in the context of a starburst evolutionary scenario, picturing the M82 nucleus as an evolved starburst.
description: 13 pages, 3 figures, to appear in ApJ Letters; corrected list of authors
title: Machen uns Computer schneller, zumindest in der Prüfung?
Creators: name: Schüttpelz-Brauns, Katrin
name: Karay, Yassin
name: März, Maren
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: In der Literatur befinden sich für die Beantwortung von Multiple-Choice-Fragen Richtwerte von 60-90 Sekunden Bearbeitungszeit pro Frage (Nitko & Brookhart, 2010). Die Richtwerte beziehen sich auf Papier-basierte bestehensrelevante Prüfungen. Im Zuge der Digitalisierung werden[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
title: Änderung des Besonderen Teils der Prüfungsordnung für den Studiengang "Wirtschaftsingenieurwesen, Studienrichtung Bauingenieurwesen" mit dem Abschluss "Master of Science" an der Technischen Universität Braunschweig, Fakultät Architektur, Bauingenieurwesen und Umweltwissenschaften und Carl-Friedrich-Gauß Fakultät
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Fakultät 3
Year: 2011
Subjects: subject: Prüfungsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 744
Chaotic Symmetry Breaking and Dissipative Two-Field Dynamics
Creators: name: Ramos, Rudnei O.
name: Navarro, F. A. R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The dynamical symmetry breaking in a two-field model is studied by numerically solving the coupled effective field equations. These are dissipative equations of motion that can exhibit strong chaotic dynamics. By choosing very general model parameters leading to symmetry breaking along one of the field directions, the symmetry broken vacua make the role of transitory strange attractors and the field trajectories in phase space are strongly chaotic. Chaos is quantified by means of the determination of the fractal dimension, which gives an invariant measure for chaotic behavior. Discussions concerning chaos and dissipation in the model and possible applications to related problems are given.
description: 18 pages, 2 .eps figures (uses epsf), Revtex. A much larger version, more comments, refs. and results. Version in press Physical Review D
title: „Halten die Akkus durch?“ – Pilotprojekt zum tabletbasierten schriftlichen Prüfen an der Medizinischen Fakultät Carl Gustav Carus der TU Dresden
Creators: name: Linke, Maike
name: Berth, Hendrik
name: Richter, Ernst Peter
name: Pich, Henryk
name: Kugel, Thomas
name: Hinz, Matthias
name: Ehrlich, Stefan
name: Mutschler, Anna
name: Brass, Konstantin
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Der Einsatz von Tablets in der Lehre hat an der Medizinischen Fakultät Carl Gustav Carus der TU Dresden bereits eine lange Tradition. Sie werden bei den jährlichen Auswahlgesprächen, bei der Lehr-Evaluation und bei OSCE-Prüfungen erfolgreich zur effektiven papierlosen Protokollierung[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
title: Ordnung für die Zentrale Einrichtung "Sportzentrum"
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Sportzentrum
Year: 2011
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 743
title: Die Zukunft des Prüfungswesens: Umfrage zu Herausforderungen an den Medizinischen Fakultäten/Universitäten im deutschsprachigen Raum 2018
Creators: name: Himmelbauer, Monika
name: Bauer, Daniel
name: Finsterer, Sonja
name: März, Maren
name: Arias, Johann
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einführung: Die Auseinandersetzung, wie man sinnhaft, effektiv und effizient prüft, um die Lernenden, Prüfenden und andere Beteiligte bestmöglich zu unterstützen – letztlich auch zum Wohle von Patientinnen und Patienten – stellt eine wichtige Aufgabe von medizinischen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
Diblock copolymers at a homopolymer-homopolymer-interface: a Monte Carlo simulation
Creators: name: Werner, A.
name: Schmid, F.
name: Binder, K.
name: Mueller, M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The properties of diluted symmetric A-B diblock copolymers at the interface between A and B homopolymer phases are studied by means of Monte Carlo (MC) simulations of the bond fluctuation model. We calculate segment density profiles as well as orientational properties of segments, of A and B blocks, and of the whole chain. Our data support the picture of oriented ``dumbbells'', which consist of mildly perturbed A and B Gaussian coils. The results are compared to a self consistent field theory (SCFT) for single copolymer chains at a homopolymer interface. We also discuss the number of interaction contacts between monomers, which provide a measure for the ``active surface'' of copolymers or homopolymers close to the interface.
Flickering presentations do affect the judgment of learning but not the learning outcome
Creators: name: Ebersbach, Mirjam
name: Guschlbauer, Jana Antonia
name: Rummer, Ralf
Publisher: name: Universität Kassel
Year: 2023
Subjects: subject: distance
subject: judgment of learning
subject: learning
subject: learning disfluency effect
subject: 150
subject: Lernen
subject: Lernstörung
subject: Beurteilung

description: Gefördert im Rahmen des Projekts DEAL
title: Berichtigung der Änderung des Besonderen Teils der Prüfungsordnung für den Studiengang „Finanz- und Wirtschaftsmathematik" mit dem Abschluss „Bachelor of Science" an der Technischen Universität Braunschweig, Carl-Friedrich-Gauß-Fakultät
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Fakultät 1
Year: 2011
Subjects: subject: Prüfungsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 742
title: Einführung Tablet-basierter Klausuren an der Medizinischen Fakultät der Christian-Albrechts-Universität zu Kiel
Creators: name: Karsten, Gudrun
name: Gerull, Stefanie
name: Heid, Jörn
name: Cascorbi, Ingolf
name: Ebermann, Inga
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Ziel der Medizinischen Fakultät der Christian-Albrechts-Universität zu Kiel ist es, die schriftlichen (Multiple Choice) Prüfungen des 2. Studienabschnitts im Medizinstudium vollständig von Papier- auf Tablet-basierte Durchführung umzustellen. Gründe für[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
title: Satzung des Studentenwerks Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Studentenwerk OstNiedersachsen
Year: 2011
Subjects: subject: Satzung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 741
title: Messung ärztlicher kommunikativer Kompetenzen bei Medizinstudierenden: Entwicklung und Erprobung einer videobasierten E-Prüfung mit Bezug zu einer OSCE (digi-Role Projekt)
Creators: name: Schneider, Stephanie
name: Behling, Lina
name: Persike, Malte
name: Schmidt, Uwe
name: Fischbeck, Sabine
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die Überprüfung ärztlicher kommunikativer Kompetenzen erfolgt im deutschsprachigen Raum neben klassischen schriftlichen Prüfungen vor allem über die Prüfungsform OSCE [ref:1]. Diese ermöglicht eine Überprüfung praktischer Fertigkeiten,[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
title: Änderung des Besonderen Teils der Prüfungsordnung für den Studiengang "Biologie" mit dem Abschluss "Bachelor of Science" an der Technischen Universität Braunschweig, Fakultät für Lebenswissenschaften
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Fakultät 2
Year: 2010
Subjects: subject: Prüfungsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 740
N-, B-, P-, Al-, As-, Ga-graphdiyne/graphyne lattices: First-principles investigation of mechanical, optical and electronic properties
Creators: name: Mortazavi, B.
name: Shahrokhi, M.
name: Madjet, M. E.
name: Hussain, T.
name: Zhuang, X.
name: Rabczuk, T.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Graphdiyne and graphyne are carbon-based two-dimensional (2D) porous atomic lattices, with outstanding physics and excellent application prospects for advanced technologies, like nanoelectronics and energy storage systems. During the last year, B- and N-graphdiyne nanomembranes were experimentally realized. Motivated by the latest experimental advances, in this work we predicted novel N-, B-, P-, Al-, As-, Ga-graphdiyne/graphyne 2D lattices. We then conducted density functional theory simulations to obtain the energy minimized structures and explore the mechanical, thermal stability, electronic and optical characteristics of these novel porous nanosheets. Acquired theoretical results reveal that the predicted carbon-based lattices are thermally stable. It was moreover found that these novel 2D nanostructures can exhibit remarkably high tensile strengths or stretchability. The electronic structure analysis reveals semiconducting electronic character for the predicted monolayers. Moreover, the optical results indicate that the first absorption peaks of the imaginary part of the dielectric function for these novel porous lattices along the in-plane directions are in the visible, IR and near-IR (NIR) range of light. This work highlights the outstanding properties of graphdiyne/graphyne lattices and recommends them as promising candidates to design stretchable energy storage and nanoelectronics systems.
title: OSCE: Fairness über mehrere Prüfungstage mittels PCM-Modelling
Creators: name: Backhaus, Joy
name: Kasseckert, Kerstin
name: Simmenroth, Anne
name: König, Sarah
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die Auswertung von OSCEs (Objective Structured Clinical Examination) zur Prüfung ärztlicher Kompetenzen stellt eine besondere Herausforderung dar. Eine Vergleichbarkeit der Bewertungen sollte über mehrere Parcours und Tage sichergestellt werden [ref:1]. Der Tatsache,[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
title: Änderung des Besonderen Teils der Prüfungsordnung für den Studiengang "Biologie" mit dem Abschluss "Master of Science" an der Technischen Universität Braunschweig, Fakultät für Lebenswissenschaften
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Fakultät 2
Year: 2010
Subjects: subject: Prüfungsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 739
title: Änderung des Besonderen Teils der Prüfungsordnung für den Masterstudiengang "Kultur der technisch-wissenschaftlichen Welt" der Fakultät für Geistes- und Erziehungswissenschaften an der TU Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Fakultät 6
Year: 2010
Subjects: subject: Prüfungsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 738
Additional file 4: of Comparative survival benefit of currently licensed second or third line treatments for epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase (ALK) negative advanced or metastatic non-small cell lung cancer: a systematic review and secondary analysis of trials
Creators: name: Connock, Martin
name: Armoiry, Xavier
name: Tsertsvadze, Alexander
name: G. Melendez-Torres
name: Royle, Pamela
name: Andronis, Lazaros
name: Clarke, Aileen
Publisher: name: figshare
Year: 2019
Subjects: Medicine
Cancer
Science Policy

description: Results for Progression Free Survival (PFS). (DOCX 4601 kb)
title: Herausforderungen im Bereich medizinischer Prüfungen gemeinsam meistern
Creators: name: Brass, Konstantin
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Die Prüfungskultur der medizinischen Ausbildung befindet sich im Wandel: zunehmend soll sie sich an den für die ärztliche Berufstätigkeit erforderlichen Kompetenzen orientieren. Hierfür wurde mit dem NKLM ein bundesweiter Kompetenzrahmen für ein Kerncurriculum[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
title: Vergabe von Studienplätzen nach der Hochschul-Vergabeordnung
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Abt. 15
Year: 2010
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 737
Spectra of random networks with arbitrary degrees
Creators: name: Newman, M. E. J.
name: Zhang, Xiao
name: Nadakuditi, Raj Rao
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We derive a message passing method for computing the spectra of locally tree-like networks and an approximation to it that allows us to compute closed-form expressions or fast numerical approximates for the spectral density of random graphs with arbitrary node degrees -- the so-called configuration model. We find the latter approximation to work well for all but the sparsest of networks. We also derive bounds on the position of the band edges of the spectrum, which are important for identifying structural phase transitions in networks.
description: 10 pages, 4 figures
The mechanics of human brain organoids
Creators: name: Balbi, Valentina
name: Destrade, Michel
name: Goriely, Alain
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Organoids are prototypes of human organs derived from cultured human stem cells. They provide a reliable and accurate experimental model to study the physical mechanisms underlying the early developmental stages of human organs morphogenesis and, in particular, the early morphogenesis of the cortex. Here, we propose a mathematical model to elucidate the role played by two mechanisms which have been experimentally proven to be crucial in shaping human brain organoids: the contraction of the inner core of the organoid and the microstructural remodeling of the outer cortex. Our results show that both mechanisms are crucial for the final shape of the organoid and can explain the origin of brain pathologies such as lissencephaly (smooth brain).
Exact Solutions for Boson-Fermion Stars in (2+1) dimensions
Creators: name: Sakamoto, Kenji
name: Shiraishi, Kiyoshi
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We solve Einstein equations coupled to a complex scalar field with infinitely large self-interaction, degenerate fermions, and a negative cosmological constant in $(2+1)$ dimensions. Exact solutions for static boson-fermion stars are found when circular symmetry is assumed. We find that the minimum binding energy of boson-fermion star takes a negative value if the value of the cosmological constant is sufficiently small.
description: 19 pages, 5 figures, RevTeX 3.0, second revised version
title: Dritte Änderung des Besonderen Teils der Prüfungsordnung für den Studiengang Biotechnologie mit dem Abschluss "Bachelor of Science" an der Technischen Universität Braunschweig, Fakultät für Lebenswissenschaften
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Fakultät 2
Year: 2010
Subjects: subject: Prüfungsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 736
Performing Massacre
Creators: name: Mitsi, Efterpi
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2017
Subjects: theatre; history; violence

description: Christopher Marlowe's The Massacre at Paris, a play which probably dates from 1592 but has reached posterity in a mangled form, enacts the incorporation of religious and state politics in the theatre. Through a sequence of short scenes characterized by senseless brutality and black humor, Marlowe revisits one of the darkest episodes of French history, the Saint Bartholomew‘s Day Massacre, which took place on the 24th and 25th August 1572. Dramatizing the slaughter of thousands of Protestants by Catholics, the play not only reflects on the significance of massacre as a political term for an increasingly absolutist Renaissance Europe but also translates the violence of massacre into aesthetic form. Itself alien within the body of Marlowe’s dramatic works, The Massacre at Paris has rarely been performed after its Elizabethan successful performances at the Rose; this is not surprising given the state of the extant text and its dismissal by many critics as crude anti-Catholic propaganda. Yet, the Massacre's corrupt and incomplete form, political ambiguities and emphasis on theatrical violence have inspired two contemporary artists, the French director Guillaume Delaveau and the Austrian composer Wolfgang Mitterer, to rethink and revive it. Both Delaveau's Massacre à Paris, first performed at Toulouse in 2007 and Mitterer's experimental opera Massacre, composed in 2003 and performed in 2008 and 2010 in France, refer to recent wars and atrocities and rejoice in the irony of the play. This paper seeks to investigate the play's ability to convey political thought and provoke contemporary audiences by reading it together with Delaveau and Mitterer's adaptations. The challenge of reworking the Massacre for our age involves the question of the theatre's potential to expose the audience to the horror of history.
description: Gramma: Journal of Theory and Criticism, Vol 24 (2017): The Viewing of Politics and the Politics of Viewing: Theatre Challenges in the Age of Globalized Communities
LCK metrics on toric LCS manifolds
Creators: name: Istrati, Nicolina
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We show a bijective correspondence between compact toric locally conformally symplectic manifolds which admit a compatible complex structure and pairs $(C,a)$, where $C$ is a good cone in the dual Lie algebra of the torus and $a$ is a positive real number. Moreover, we prove that any toric locally conformally Kähler metric on a compact manifold admits a positive potential.
description: 17 pages
Spectra of massive and massless QCD Dirac operators: A novel link
Creators: name: Akemann, G.
name: Kanzieper, E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Lattice (hep-lat)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We show that integrable structure of chiral random matrix models incorporating global symmetries of QCD Dirac operators (labeled by the Dyson index beta=1,2, and 4) leads to emergence of a connection relation between the spectral statistics of massive and massless Dirac operators. This novel link established for beta-fold degenerate massive fermions is used to explicitly derive (and prove the random matrix universality of) statistics of low--lying eigenvalues of QCD Dirac operators in the presence of SU(2) massive fermions in the fundamental representation (beta=1) and SU(N_c >= 2) massive adjoint fermions (beta=4). Comparison with available lattice data for SU(2) dynamical staggered fermions reveals a good agreement.
description: 4 pages, published version
The exponential distribution analog of the Grubbs--Weaver method
Creators: name: Sills, Andrew V.
name: Champ, Charles W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Grubbs and Weaver (JASA 42 (1947) 224--241) suggest a minimum-variance unbiased estimator for the population standard deviation of a normal random variable, where a random sample is drawn and a weighted sum of the ranges of subsamples is calculated. The optimal choice involves using as many subsamples of size eight as possible. They verified their results numerically for samples of size up to 100, and conjectured that their "rule of eights" is valid for all sample sizes. Here we examine the analogous problem where the underlying distribution is exponential and find that a "rule of fours" yields optimality and prove the result rigorously.
description: 10 pages; to appear in Communications in Statistics: Theory and Methods
Jones-matrix Formalism as a Representation of the Lorentz Group
Creators: name: Han, D.
name: Kim, Y. S.
name: Noz, Marilyn E.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Optics (physics.optics)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that the two-by-two Jones-matrix formalism for polarization optics is a six-parameter two-by-two representation of the Lorentz group. The attenuation and phase-shift filters are represented respectively by the three-parameter rotation subgroup and the three-parameter Lorentz group for two spatial and one time dimensions. It is noted that the Lorentz group has another three-parameter subgroup which is like the two-dimensional Euclidean group. Possible optical filters having this Euclidean symmetry are discussed in detail. It is shown also that the Jones-matrix formalism can be extended to some of the non-orthogonal polarization coordinate systems within the framework of the Lorentz-group representation.
description: RevTeX, 27 pages, no figures, to be published in J. Opt. Soc. Am. A
A critical review on the separation of heavy metal(loid)s from the contaminated water using various agricultural wastes
Creators: name: Younas, Fazila
name: Younas, Sadia
name: Bibi, Irshad
name: Farooqi, Zia Ur Rahman
name: Hameed, Muhammad Ashir
name: Mohy-Ud-Din, Waqas
name: Shehzad, Muhammad Tahir
name: Hussain, Muhammad Mahroz
name: Shakil, Qamar
name: Shahid, Muhammad
name: Niazi, Nabeel Khan
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Space Science
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Wastewater contamination with heavy metal(loids)s has become a worldwide environmental and public health problem due to their toxic and non-degradable nature. Different methods and technologies have been applied for water/wastewater treatment to mitigate heavy metal(loid)-induced toxicity threat to humans. Among various treatment methods, adsorption is considered the most attractive method because of its high ability and efficiency to remove contaminants from wastewater. Agricultural waste-based adsorbents have gained great attention because of high efficiency to heavy metal(loids)s removal from contaminated water. Chemically modified biosorbents can significantly enhance the stability and adsorption ability of the sorbents. The two mathematical models of sorption, Freundlich and Langmuir isotherm models, have mostly been studied. In kinetic modeling, pseudo-second-order model proved better in most of the studies compared to pseudo-first-order model. The ion exchange and electrostatic attraction are the main mechanisms for adsorption of heavy metal(loid)s on biosorbents. The regeneration has allowed various biosorbents to be recycled and reused up to 4-5 time. Most effective eluents used for regeneration are dilute acids. For practical perspective, biosorbent removal efficiency has been elucidated using various types of wastewater and economic analysis studies. Economic analysis of adsorption process using agricultural waste-based biosorbents proved this approach cheaper compared to traditional commercial adsorbents, such as chemically activated carbon. The review also highlights key research gaps to advance the scope and application of waste peels for the remediation of heavy metal(loid)s-contaminated wastewater. This review provides new information and insights on the potential utilization of agriculture-based biosorbents for the removal of contaminants, especially heavy metal(loid)s from toxic water/wastewater, as well as their mechanisms, adsorption efficiency, and regeneration ability. For practical perspective, biosorbent adsorption efficiency was elucidated by using various types of wastewater and economic analysis studies.
The blue compact dwarf galaxy I Zw 18: a comparative study of its low-surface-brightness component
Creators: name: Papaderos, P.
name: Izotov, Y. I.
name: Thuan, T. X.
name: Noeske, K. G.
name: Fricke, K. J.
name: Guseva, N. G.
name: Green, R. F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (abridged): Using HST and ground-based optical and NIR imaging data, we investigate whether the blue compact dwarf (BCD) galaxy I Zw 18 possesses an extended low-surface-brightness (LSB) old stellar population underlying its star-forming (SF) regions. We show that the exponential intensity decrease observed in the filamentary LSB envelope of the BCD out to 18 arcsec (1.3 kpc at a distance of 15 Mpc) is not due to an evolved stellar disc, but rather due to extended ionized gas emission. Broad-band images reveal, after subtraction of nebular line emission, a compact stellar LSB component extending slightly beyond the SF regions. This stellar host, being blue over a radius range of 5 exponential scale lengths and showing little colour contrast to the SF component, differs strikingly from the red LSB host of standard BCDs. This fact, in connection with the blue colors of component I Zw 18 C, suggests that most of the stellar mass in I Zw 18 has formed within the last 0.5 Gyr. Furthermore, we show that the exponential intensity fall-off in the filamentary ionized envelope of I Zw 18 is not particular to this system but a common property of the ionized halo of many SF dwarf galaxies on galactocentric distances of several kpc. In the absence of an appreciable underlying stellar background, extended ionized gas emission dominates in the periphery of I Zw 18, mimicking an exponential stellar disc on optical surface brightness profiles.
description: 24 pages, 16 figures; accepted for publication in Astronomy & Astrophysics; higher resolution images available at http://alpha.uni-sw.gwdg.de/~papade/IZw18/
The Politics of Derek Walcott’s Poetic Drama
Creators: name: Ollier, Nicole
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2017
Subjects: Derek Walcott; carnival; historical drama

description: This essay focuses on Derek Walcott’s The Haitian Earth, a chronicle of Haiti’s violent revolution led by Toussaint l’Ouverture, Jean-Jacques Dessalines and Henri Christophe. Far from painting a romantic idealization of those legendary heroes, Walcott gives a fairly unsavoury realistic picture of what power does to men in a postcolonial context, and of how violent models can be appropriated and made worse. The use of language, dialect, of different registers of creole and standard English plays a major role in drawing the dividing-line between morality and unethical, bestial behaviour. The essay also focus on an unpublished musical comedy, Marie Laveau, which was however staged and recorded in Trinidad, in which dialogism develops between several forms of language, including that of songs, and also between two separate worlds. In Haitian Earth, Walcott seems to have opted for a realistic pessimism, while in the musical comedy Marie Laveau, he has chosen an unrealistic, somewhat romantic faith in man’s ability to reform himself and in human redemption at large.
description: Gramma: Journal of Theory and Criticism, Vol 24 (2017): The Viewing of Politics and the Politics of Viewing: Theatre Challenges in the Age of Globalized Communities
Scalar radiation emitted from a source rotating around a black hole
Creators: name: Crispino, Luis C. B.
name: Higuchi, Atsushi
name: Matsas, George E. A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the scalar radiation emitted from a source rotating around a Schwarzschild black hole using the framework of quantum field theory at the tree level. We show that for relativistic circular orbits the emitted power is about 20% to 30% smaller than what would be obtained in Minkowski spacetime. We also show that most of the emitted energy escapes to infinity. Our formalism can readily be adapted to investigate similar processes.
description: 19 pages (REVTEX), 5 figures, title slightly changed, extra demonstration and minor improvements included. To appear in Class. Quant. Grav
Long-term Stellar Variability in the Galactic Centre Region
Creators: name: Molina, C. Navarro
name: Borissova, J.
name: Catelan, M.
name: Lucas, P. W.
name: Medina, N.
name: Pena, C. Contreras
name: Kurtev, R.
name: Minniti, D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the detection of variable stars within a 11.5' x 11.5' region near the Galactic centre (GC) that includes the Arches and Quintuplet clusters, as revealed by the VISTA Variables in the Via Lactea (VVV) survey. There are 353 sources that show Ks-band variability, of which the large majority (81%) correspond to red giant stars, mostly in the asymptotic giant branch (AGB) phase. We analyze a population of 52 red giants with long-term trends that cannot be classified into the typical pulsating star categories. Distances and extinctions are calculated for 9 Mira variables, and we discuss the impact of the chosen extinction law on the derived distances. We also report the presence of 48 new identified young stellar object (YSO) candidates in the region.
description: Resubmitted to MNRAS after a positive referee report, 21 pages, 23 figures and 3 tables
MAIN ASPECTS OF INFLUENZA PREVENTION IN MODERN  CONDITIONS AMONG MEDICAL UNIVERSITY STUDENTS
Creators: name: Nodira I. Vafoeva, TASHKENT MEDICAL ACADEMY, TASHKENT, UZBEKISTAN
name: Nasiba Sh. Zhonuzokova, TASHKENT MEDICAL ACADEMY, TASHKENT, UZBEKISTAN
name: Umida A. Asatullaeva, TASHKENT MEDICAL ACADEMY, TASHKENT, UZBEKISTAN
Publisher: name: Zenodo
Year: 2024

description: Influenza  is  a  massive  viral  infection  that  can  affect  anyone, outbreaks of which are more common in winter and early spring. The causative agent  of  influenza  is  a  virus  that  passes  from  infected  people  into  the nasopharynx of others. The influenza virus has a pronounced ability to change its antigenic structure, so the diagnosis  of “influenza” can be made repeatedly during the life of each person. Influenza differs from many infectious diseases in that  it  is  easily  transmitted  from  a  sick  person  to  a  healt hy  person  -  through airborne droplets (when talking, coughing, sneezing), causing illness a day after infection. Prevention of influenza and ARVI (acute respiratory viral infection) is a set of measures aimed at preventing infection of the human body with  viruses that cause the disease.
A new study towards PSR J1826-1334 and PSR J1826-1256 in the region of HESS J1825-137 and HESS J1826-130
Creators: name: Duvidovich, L.
name: Giacani, E.
name: Castelletti, G.
name: Petriella, A.
name: Supán, L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Aims. The goal of this paper is to detect synchrotron emission from the relic electrons of the crushed pulsar wind nebula (PWN) HESS J1825-137 and to investigate the origin of the $γ$-ray emission from HESS J1826-130.\\ Methods. The study of HESS J1825-137 was carried out on the basis of new radio observations centred at the position of PSR J1826-1334 performed with the Karl G. Jansky Very Large Array at 1.4 GHz in configurations B and C. To investigate the nature of HESS J1826-130, we reprocessed unpublished archival data obtained with XMM-Newton.\\ Results. The new radio continuum image towards PSR J1826-1334 reveals a bright radio source, with the pulsar located in its centre, which suggests that this feature could be the radio counterpart of the compact component of the PWN detected at high energy. The new 1.4 GHz radio data do not reveal emission with an extension comparable with that observed in $γ$-rays for the HESS J1825-137 source. On the other hand, the XMM-Newton study of the region including PSR J1826-1256 reveals an elongated non-thermal X-ray emitting nebula with the pulsar located in the northern border and a tail towards the peak of the very high energy source. The spectrum is characterized by a power law with a photon index going from 1.6 around the pulsar to 2.7 in the borders of the nebula, a behaviour consistent with synchrotron cooling of electrons. From our X-ray analysis we propose that HESS J1826-130 is likely produced by the PWN powered by PSR J1826-1256 via the inverse Compton mechanism.
description: 9 pages, 5 figures, 4 tables. Accepted for publication in the Astronomy & Astrophysics Journal. The quality of the images has been degraded
Additional file 8: of Unique RNA signature of different lesion types in the brain white matter in progressive multiple sclerosis
Creators: name: Elkjaer, Maria
name: Frisch, Tobias
name: Reynolds, Richard
name: Kacprowski, Tim
name: Burton, Mark
name: Kruse, Torben
name: Thomassen, Mads
name: Baumbach, Jan
name: Illes, Zsolt
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Table S5. Top 10 up- and downregulated genes in lesion types vs control WM (PDF 262 kb)
Fermion determinants in matrix models of QCD at nonzero chemical potential
Creators: name: Halasz, M. A.
name: Jackson, A. D.
name: Verbaarschot, J. J. M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The presence of a chemical potential completely changes the analytical structure of the QCD partition function. In particular, the eigenvalues of the Dirac operator are distributed over a finite area in the complex plane, whereas the zeros of the partition function in the complex mass plane remain on a curve. In this paper we study the effects of the fermion determinant at nonzero chemical potential on the Dirac spectrum by means of the resolvent, G(z), of the QCD Dirac operator. The resolvent is studied both in a one-dimensional U(1) model (Gibbs model) and in a random matrix model with the global symmetries of the QCD partition function. In both cases we find that, if the argument z of the resolvent is not equal to the mass m in the fermion determinant, the resolvent diverges in the thermodynamic limit. However, for z =m the resolvent in both models is well defined. In particular, the nature of the limit $z \rightarrow m$ is illuminated in the Gibbs model. The phase structure of the random matrix model in the complex m and μ-planes is investigated both by a saddle point approximation and via the distribution of Yang-Lee zeros. Both methods are in complete agreement and lead to a well-defined chiral condensate and quark number density.
description: 27 pages, 6 figures, Latex
Additional file 3: of Comparative survival benefit of currently licensed second or third line treatments for epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase (ALK) negative advanced or metastatic non-small cell lung cancer: a systematic review and secondary analysis of trials
Creators: name: Connock, Martin
name: Armoiry, Xavier
name: Tsertsvadze, Alexander
name: G. Melendez-Torres
name: Royle, Pamela
name: Andronis, Lazaros
name: Clarke, Aileen
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Hematology

description: Reconstructed hazard ratios compared to published hazard ratios. (DOCX 19 kb)
The New Science of Complexity
Creators: name: McCauley, J. L.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Classical Physics (physics.class-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: Deterministic chaos, and even maximum computational complexity, have been discovered within Newtonian dynamics. Economists assume that prices and price changes can also obey abstract mathematical laws of motion. Sociologists and other postmodernists advertise that physics and chemistry have outgrown their former limitations, that chaos and complexity provide new holistic paradigms for science, and that the boundaries between the hard and soft sciences, once impenetrable, have disappeared like the Berlin Wall. Three hundred years after the deaths of Galileo, Descartes, and Kepler, and the birth of Newton, reductionism appears to be on the decline, with holistic approaches to science on the upswing. We therefore examine the evidence that dynamical laws of motion may be discovered from empirical studies of chaotic or complex phenomena, and also review the foundation of reductionism in invariance principle.
Quantum Theory of Geometry III: Non-commutativity of Riemannian Structures
Creators: name: Ashtekar, Abhay
name: Corichi, Alejandro
name: Zapata, Jose. A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The basic framework for a systematic construction of a quantum theory of Riemannian geometry was introduced recently. The quantum versions of Riemannian structures --such as triad and area operators-- exhibit a non-commutativity. At first sight, this feature is surprising because it implies that the framework does not admit a triad representation. To better understand this property and to reconcile it with intuition, we analyze its origin in detail. In particular, a careful study of the underlying phase space is made and the feature is traced back to the classical theory; there is no anomaly associated with quantization. We also indicate why the uncertainties associated with this non-commutativity become negligible in the semi-classical regime.
description: 20 pages, revtex, 1 figure. Some typos corrected. References updated
title: Zweite Änderung des Besonderen Teils der Prüfungsordnung für den Studiengang Biotechnologie mit dem Abschluss "Master of Science" an der Technischen Universität Braunschweig, Fakultät für Lebenswissenschaften
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Fakultät 2
Year: 2010
Subjects: subject: Prüfungsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 735
The mass profile of A1413 observed with XMM-Newton: implications for the M-T relation
Creators: name: Pratt, G. W.
name: Arnaud, M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an XMM-Newton observation of A1413, a hot (kT = 6.5 keV) galaxy cluster at z=0.143. We construct gas and temperature profiles up to ~1700 kpc, equivalent to ~0.7 r_200. The gas distribution is well described by a beta model in the outer regions, but is more concentrated in the inner ~250 kpc. We introduce a new parameterisation for the inner regions, allowing a steeper gas density distribution. The projected radial temperature profile declines gradually towards the outer regions, by ~20% between 0.1 r_200 and 0.5 r_200, and is well described by a polytropic model with gamma = 1.07+/-0.01. We find that neither projection nor PSF effects change substantially the form of the temperature profile. Assuming hydrostatic equilibrium (HE) and spherical symmetry, we use the observed temperature profile and the new parametric form for the gas density profile to produce the total mass distribution. The mass profile is remarkably well fitted with the Moore et al. (1999) parameterisation with a concentration parameter in the range expected from numerical simulations. There are several indications that beyond a density contrast delta \~600, the gas may no longer be in HE. There is an offset with respect to adiabatic numerical simulations in the virialised part of the cluster, in that the predicted mass for the cluster temperature is ~40% too high. The gas distribution is peaked in the centre primarily as a result of the cusp in the dark matter profile. The X-ray gas to total mass ratio rises with increasing radius to f_gas ~ 0.2. These data strongly support the validity of the current approach for the modelling of the dark matter collapse, but confirm that understanding the gas specific physics is essential. (Abridged)
description: To appear in A&A
title: Promotionsordnung der Fakultät für Lebenswissenschaften der Technischen Universität Carolo-Wilhelmina zu Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Fakultät 2
Year: 2010
Subjects: subject: Promotionsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 734
In Response to Narratives of Stereotypes: Arab American Playwrights Reclaim and Fortify Arab American Representation
Creators: name: Ali, Roaa
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2017
Subjects: Arab-American drama; 9/11; stereotyping

description: In America, the aftermath of 9/11 saw stereotyping against Arabs become a dominant ideological force, inscribing and impacting the relationship between Arab Americans and the US. Along with a tradition of stereotyping always-already framed within an Orientalist discourse, the lack of representational platforms for Arab Americans solidified their negative visibility. This paper examines how Arab American playwrights have used the theatrical space to offer self-representation as an alternative to culturally and institutionally inscribed stereotypes in response to an urgent demand for cultural, social and political survival. Dramatizing the process and effects of social stereotyping, Sam Younis' Browntown (2009) reveals the cultural mechanisms of mainstream stereotypes through satirically presenting an Arab American actor, only cast for terrorist roles. Yussef El Guindi's Back of the Throat (2005) captures institutional legalization of discrimination as the more damaging form of stereotypes presenting the case of an Arab American framed and tried by the "terrorist" stereotype. Younis and El Guindi’s plays unsettle stereotypes offering a resisting Althusserian interpellation against anti-Arab/Muslim ("terrorist") state ideology. This paper thus argues that theatre provided a radical platform for Arab Americans to defy state and cultural discourses and reach a multicultural identity that is American in its principles and Arab American in its terminology.
description: Gramma: Journal of Theory and Criticism, Vol 24 (2017): The Viewing of Politics and the Politics of Viewing: Theatre Challenges in the Age of Globalized Communities