cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Influence of non-statistical properties in nuclear structure on emission of prompt fission neutrons
Creators: name: Kawano, Toshihiko
name: Okumura, Shin
name: Lovell, Amy E.
name: Stetcu, Ionel
name: Talou, Patrick
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Hauser-Feshbach Fission Fragment Decay (HF$^3$D) model is extended to calculate the prompt fission neutron spectrum (PFNS) for the thermal neutron induced fission on $^{235}$U, where the evaporated neutrons from all possible fission fragment pairs are aggregated. By studying model parameter sensitivities on the calculated PFNS, as well as non-statistical behavior of low-lying discrete level spin distribution, we conclude that discrepancies between the aggregation calculation and the experimental PFNS seen at higher neutron emission energies can be attributed to both the primary fission fragment yield distribution and the possible high spin states that are not predicted by the statistical theory of nuclear structure.
Band structure of ZnO from resonant x-ray emission spectroscopy
Creators: name: Preston, A. R. H.
name: Ruck, B. J.
name: Piper, L. F. J.
name: DeMasi, A.
name: Smith, K. E.
name: Schleife, A.
name: Fuchs, F.
name: Bechstedt, F.
name: Chai, J.
name: Durbin, S. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Soft x-ray emission and absorption spectroscopy of the O K-edge are employed to investigate the electronic structure of wurtzite ZnO(0001). A quasiparticle band structure calculated within the GW approximation agrees well with the data, most notably with the energetic location of the Zn3d - O2p hybridized state and the anisotropy of the absorption spectra. Dispersion in the band structure is mapped using the coherent k-selective part of the resonant x-ray emission spectra. We show that a more extensive mapping of the bands is possible in the case of crystalline anisotropy such as that found in ZnO.
description: 5 pages, 5 figures
Kai-Uwe Klare: Imperium ante portas. Die deutsche Expansion in Mittel- und Osteu¬ropa zwischen Weltpolitik und Lebensraum (1914–1918).
Creators: name: Schattkowsky, Ralph
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 4 (2020)
La paternità del male. Caos parentale e guerra civile nelle  Phoenissae  di Seneca
Creators: name: Li Causi, Pietro
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Giving his sons the paradoxical order to carry out the crime which they are independently going to commit, the Oedipus of Phoenissae tries to reassure his primacy in evil within his dynasty. In fact,  while reconfiguring himself as the principal instigator of a civil war  that has its archetypal roots in the incest with Jocasta, the Senecan  hero represents himself as solely responsible for all the deeds which  his descendants are going to accomplish. But if on the one hand Oedipus  is able, through this sophisticated ploy, to overcome an initial  situation of impotence (and the risk of appearing inferior to his sons,  considered by him as rivals in evil), on the other hand, Jocasta, by  contrast, is represented by the dramatist as completely devoid of  resources and expedients. Not only, in fact, will Laius' former wife   fail to settle the conflict between Eteocles and Polynices, but she will  also involuntarily trigger it, thus becoming the unwitting accomplice  in the strange scheme of her husband/son, who - with the death of his  descendents - will partly achieve, in his hallucinated logic, the desire  to revenge his father and return ad ortus, thus erasing all the signs of his guilt, and paradoxically rolling back the time of the story.
description: Annali Online  Lettere - Ferrara, IV 1 (2009)
Learning in African public libraries: INELI-SSAf projects in perspective
Creators: name: Chijioke, Chidumebi Okwuoma
name: Adepoju, Folasade
name: Mwape, Alice Musonda
Publisher: name: AfLIA
Year: 2023
Subjects: classificationCode: 461006
subject: Library studies
classificationCode: 350705
subject: Innovation management

description: Public libraries are centers for development and lifelong learning for members of communities wherever they are established. The level of development in communities may be in correlation to the level of sophistication of the public libraries available. The digital age triggered the need for African public libraries to embrace changes in service provision. This also brought about the need for an operational shift in order to make more impact and not lose relevance. Innovation was the only rescue. The need to create new ways of rendering service in African public libraries so as to fit into the digital age cannot be overemphasized. Public librarians as would-be drivers of these innovations needed to be reoriented through adequate and dynamic capacity building. African Library and Information Associations and Institutions (AfLIA) took up this onerous task by creating the platform for International Network for Emerging Library Innovators Sub-Saharan Africa (INELI SSAf). Two cohorts of innovators pooled from public libraries across African countries have graduated from this training programme anchored by AfLIA. INELI is a global initiative of the Bill and Melinda Gates Foundation to groom young library leaders to connect, learn and explore ideas and opportunities. The innovators were exposed to dynamic training modules that inculcated in them effective librarianship in the digital age. Consequently, innovations have continued to spring up across African public libraries. Informed users are constantly emerging from learning creative lifestyle through these programmes. The objectives of this paper are to examine the content of the Moodle learning platform of INELI-SSAf, to identify the community projects carried out by different innovators and evaluate the impact of the innovations on the communities. This was an evidence based research. Results indicated that the innovators learned new ways of creating innovations in libraries, various projects were carried out by the innovators, and the impact has been positive on the library user communities across Africa. Recommendation include that more public librarians should be given this opportunity to learn.
Emerging Trends for Global DevOps: A New Zealand Perspective
Creators: name: Hussain, Waqar
name: Clear, Tony
name: MacDonell, Stephen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The DevOps phenomenon is gaining popularity through its ability to support continuous value delivery and ready accommodation of change. However, given the relative immaturity and general confusion about DevOps, a common view of expectations from a DevOps role is lacking. Through investigation of online job advertisements, combined with interviews, we identified key Knowledge Areas, Skills and Capabilities for a DevOps role and their relative importance in New Zealand's job market. Our analysis also revealed the global dimensions and the emerging nature of the DevOps role in GSE projects. This research adds a small advanced economy (New Zealand) perspective to the literature on DevOps job advertisements and should be of value to employers, job seekers, researchers as well educators and policy makers.
description: Conference paper, 10 pages, 5 figures, 1 appendix
Arkadiusz Stempin: Das vergessene Generalgouvernement. Die deutsche Besatzungs-politik in Kongresspolen 1914‒1918.
Creators: name: Stokłosa, Katarzyna
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 4 (2020)
Geometric test for topological states of matter
Creators: name: Klevtsov, Semyon
name: Zvonkine, Dimitri
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We generalize the flux insertion argument due to Laughlin, Niu-Thouless-Tao-Wu, and Avron-Seiler-Zograf to the case of fractional quantum Hall states on a higher-genus surface. We propose this setting as a test to characterise the robustness, or topologicity, of the quantum state of matter and apply our test to the Laughlin states. Laughlin states form a vector bundle, the Laughlin bundle, over the Jacobian - the space of Aharonov-Bohm fluxes through the holes of the surface. The rank of the Laughlin bundle is the degeneracy of Laughlin states or, in presence of quasiholes, the dimension of the corresponding full many-body Hilbert space; its slope, which is the first Chern class divided by the rank, is the Hall conductance. We compute the rank and all the Chern classes of Laughlin bundles for any genus and any number of quasiholes, settling, in particular, the Wen-Niu conjecture. Then we show that Laughlin bundles with non-localized quasiholes are not projectively flat and that the Hall current is precisely quantized only for the states with localized quasiholes. Hence our test distinguishes these states from the full many-body Hilbert space.
description: 6 pages
Hanna Kozińska-Witt: Politycy czy klakierzy? Żydzi w krakowskiej radzie miejskiej w XIX wieku [Politiker oder Claqueure? Juden im Krakauer Stadtrat im 19. Jahrhundert.]
Creators: name: Kisiel, Piotr
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 4 (2020)
A modern potential model calculation of proton-proton bremsstrahlung
Creators: name: Workman, R. L.
Publisher: name: University of British Columbia
Year: 2010

description: We describe a modern potential model calculation for proton-proton bremsstrahlung( ppγ). This calculation is important as it uses the Paris Nucleon-Nucleon potential, a modern theoretically based potential which has not been used in ppγ calculations before. Observables for the ppγprocess are calculated and compared with results obtained by other authors - both theoretical and experimental. We calculate both cross sections and analyzing powers for ppγ. Asymmetry data is expected from a new TRIUMF ppγ experiment, which will provide the first opportunity for comparison of modern asymmetry data with a modern potential model calculation. Several potentials are used in the present ppγ calculation; results for the Reid soft-core potential, the 'Extended' Reid soft-core potential and, the Paris potential are produced. The partial-waved Reid soft-core and Paris potentials are described in detail. The calculation utilizes fully relativistic kinematics, coplanar and non-coplanar geometries and, can be performed in either the lab or center-of-mass frame. Relativistic spin corrections have been added and the effect of Liou's gauge term has been considered. The numerical calculations are checked in several ways. Comparisons are made with soft-photon approximation calculations near the soft-photon limit. In addition, elastic observables are produced and checked at intermediate points in the calculation. We find that results from the Extended Reid and Paris potentials are qualitatively the same. We also find that the analyzing powers are sensitive to approximations made in the calculation - more sensitive than are the cross sections.
Canadian Gallup Poll # 520-2
Creators: name: Inc., The Canadian Gallup Poll
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Federal elections vote intent(1); past federal elections vote(1); compensation for victims of crime(2); immigration to Canada(3); parole of criminals(2); personal worries(5); capital punishment (6); perceptions of major political party leaders(6). Note: Standard demographics(17).
Reheating a multi-throat universe by brane motion
Creators: name: Mukohyama, Shinji
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a mechanism of reheating after inflation in multi-throat scenarios of warped extra dimensions. Validity of an effective field theory on the standard model (SM) brane requires that the position of the SM brane during inflation be different from the position after inflation. The latter is supposed to be near the tip of the SM throat but the former is not. After inflation, when the Hubble expansion rate becomes sufficiently low, the SM brane starts moving towards the tip and eventually oscillates. The SM fields are excited by the brane motion and the universe is reheated. Since interaction between the brane position modulus and the SM fields is suppressed only by the local string scale, the modulus effectively decays into the SM fields.
description: 15 pages. v3: estimate of reheat temperature and reference added; published version
Stochastic gravitational-wave background from metastable cosmic strings
Creators: name: Buchmuller, Wilfried
name: Domcke, Valerie
name: Schmitz, Kai
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A metastable cosmic-string network is a generic consequence of many grand unified theories (GUTs) when combined with cosmic inflation. Metastable cosmic strings are not topologically stable, but decay on cosmic time scales due to pair production of GUT monopoles. This leads to a network consisting of metastable long strings on superhorizon scales as well as of string loops and segments on subhorizon scales. We compute for the first time the complete stochastic gravitational-wave background (SGWB) arising from all these network constituents, including several technical improvements to both the derivation of the loop and segment contributions. We find that the gravitational waves emitted by string loops provide the main contribution to the gravitational-wave spectrum in the relevant parameter space. The resulting spectrum is consistent with the tentative signal observed by the NANOGrav and Parkes pulsar timing collaborations for a string tension of Gμ~ 10^-11...-7 and has ample discovery space for ground- and space-based detectors. For GUT-scale string tensions, Gμ~ 10^-8...-7, metastable strings predict a SGWB in the LIGO-Virgo-KAGRA band that could be discovered in the near future.
description: 31 pages, 6 figures. v2: signal recently reported by the Parkes Pulsar Timing Array (PPTA) collaboration [2107.12112] added to Figs. 2 to 4
Ludwig August Frankl (1810–1894). Eine jüdische Biographie zwischen Okzident und Orient. Hrsg. von Louise Hecht.
Creators: name: Hofmeister, Alexis
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 4 (2020)
Keilen_2021_Supporting information.docx
Creators: name: Keilen, Julia
name: Gar, Christina
name: Rottenkolber, Marietta
name: Fueessl, Louise
name: Joseph, Anna
name: Draenert, Rika
name: Seissler, Jochen
name: Lechner, Andreas
Publisher: name: figshare
Year: 2021
Subjects: Medicine

description: Supplemental data: Keilen et al., 2021, AJPENDO
Macroscopic Strings and "Quirks" at Colliders
Creators: name: Kang, Junhai
name: Luty, Markus A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider extensions of the standard model containing additional heavy particles ("quirks") charged under a new unbroken non-abelian gauge group as well as the standard model. We assume that the quirk mass m is in the phenomenologically interesting range 100 GeV--TeV, and that the new gauge group gets strong at a scale Lambda < m. In this case breaking of strings is exponentially suppressed, and quirk production results in strings that are long compared to 1/Lambda. The existence of these long stable strings leads to highly exotic events at colliders. For 100 eV < Lambda < keV the strings are macroscopic, giving rise to events with two separated quirk tracks with measurable curvature toward each other due to the string interaction. For keV < Lambda < MeV the typical strings are mesoscopic: too small to resolve in the detector, but large compared to atomic scales. In this case, the bound state appears as a single particle, but its mass is the invariant mass of a quirk pair, which has an event-by-event distribution. For MeV < Lambda < m the strings are microscopic, and the quirks annihilate promptly within the detector. For colored quirks, this can lead to hadronic fireball events with 10^3 hadrons with energy of order GeV emitted in conjunction with hard decay products from the final annihilation.
description: Added discussion of photon-jet decay, fixed minor typos
On approximability by embeddings of cycles in the plane
Creators: name: Skopenkov, Mikhail
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 57Q35 (Primary), 54C25, 57M20 (Secondary)

description: We obtain a criterion for approximability by embeddings of piecewise linear maps of a circle to the plane, analogous to the one proved by Minc for maps of a segment to the plane. Theorem. Let S be a triangulation of a circle with s vertices. Let f be a simplicial map of the graph S to the plane. The map f is approximable by embeddings if and only if for each i=0,...,s the i-th derivative of the map f (defined by Minc) neither contains transversal self-intersections nor is the standard winding of degree greater than 1. We deduce from the Minc result the completeness of the van Kampen obstruction to approximability by embeddings of piecewise linear maps of a segment to the plane. We also generalize these criteria to simplicial maps of a graph without vertices of degree >3 to a circle.
description: in English, in Russian (Sections 1-3 only), 14 pages, 12 figures; Improvement of exposition in Section 1
Spotlighting quantum phase transition in spin-1/2 Ising-Heisenberg diamond chain employing Measurement-Induced Nonlocality
Creators: name: Bhuvaneswari, S.
name: Muthuganesan, R.
name: Radha, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We examine thermal quantum correlations characterized by Measurement-Induced Nonlocality (MIN) in an infinite spin-1/2 Ising-Heisenberg spin chain with Dzyaloshinskii-Moriya (DM) interaction. We evaluate MIN analytically in the thermodynamic limit using the transfer matrix approach and show that the MIN and its first-order derivative may spotlight the quantum criticality and quantum phase transition (QPT). We observe that the DM interaction reduces the role of anisotropy parameter in initiating QPT. Further, the DM interaction also induces the nonlocality in the system if the spins are unentangled and greatly enhances the quantum correlations if the spins are correlated. The impact of the magnetic field and temperature on quantum correlations is also brought out at a critical point.
description: 14 pages, 8 color figures. Comments are welcome
Unveiling the dopant segregation effect at hematite interfaces
Creators: name: de Lima, Felipe Crasto
name: Schleder, Gabriel R.
name: Junior, João B. Souza
name: Souza, Flavio L.
name: Destro, Fabrício B.
name: Miwa, Roberto H.
name: Leite, Edson R.
name: Fazzio, Adalberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Understanding the effects of atomic structure modification in hematite photoanodes is essential for the rational design of high-efficiency functionalizations. Recently it was found that interface modification with Sn/Sb segregates considerably increases hematite photocatalytic efficiency. However, the understanding of the different electronic effects of these modifications at the atomic level is still lacking. This letter describes the segregation effects of two different dopants-Sn and Sb-on both the solid-solid (grain-boundaries) and solid-liquid interfaces (surfaces) of hematite. Within an ab-initio approach, we quantitatively extract the potential barrier reduction on polycrystalline interfaces due to the dopant, which causes an increase in the inter-grain electron transport. Concomitantly, the dopants' segregation on hematite surfaces results in a decrease of the oxygen vacancy formation energy. Such vacancies lead to the experimentally observed rise of the flat-band potential. The comprehension of the electronic effects of dopants on both types of interfaces explains the experimental peak efficiency of interface-modified hematite with dopant segregates, also enabling the control and design of interfaces for different higher-efficiency applications.
Theory of the Nernst effect near quantum phase transitions in condensed matter, and in dyonic black holes
Creators: name: Hartnoll, Sean A.
name: Kovtun, Pavel K.
name: Mueller, Markus
name: Sachdev, Subir
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a general hydrodynamic theory of transport in the vicinity of superfluid-insulator transitions in two spatial dimensions described by "Lorentz"-invariant quantum critical points. We allow for a weak impurity scattering rate, a magnetic field B, and a deviation in the density, ρ, from that of the insulator. We show that the frequency-dependent thermal and electric linear response functions, including the Nernst coefficient, are fully determined by a single transport coefficient (a universal electrical conductivity), the impurity scattering rate, and a few thermodynamic state variables. With reasonable estimates for the parameters, our results predict a magnetic field and temperature dependence of the Nernst signal which resembles measurements in the cuprates, including the overall magnitude. Our theory predicts a "hydrodynamic cyclotron mode" which could be observable in ultrapure samples. We also present exact results for the zero frequency transport co-efficients of a supersymmetric conformal field theory (CFT), which is solvable by the AdS/CFT correspondence. This correspondence maps the ρand B perturbations of the 2+1 dimensional CFT to electric and magnetic charges of a black hole in the 3+1 dimensional anti-de Sitter space. These exact results are found to be in full agreement with the general predictions of our hydrodynamic analysis in the appropriate limiting regime. The mapping of the hydrodynamic and AdS/CFT results under particle-vortex duality is also described.
description: 44 pages, 4 figures; (v3) Added new subsection highlighting negative Hall resistance at hole densities smaller than 1/8
MPEC 2023-Y78 : DAILY ORBIT UPDATE (2023 December 23)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Bicomplex quantum mechanics: I. The generalized Schrödinger equation
Creators: name: Rochon, Dominic
name: Tremblay, Sébastien
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce the set of bicomplex numbers $\mathbb{T}$ which is a commutative ring with zero divisors defined by $\mathbb{T}=\{w_0+w_1 \bold{i_1}+w_2\bold{i_2}+w_3 \bold{j}| w_0,w_1,w_2,w_3 \in \mathbb{R}\}$ where $\bold{i^{\text 2}_1}=-1, \bold{i^{\text 2}_2}=-1, \bold{j}^2=1,\ \bold{i_1}\bold{i_2}=\bold{j}=\bold{i_2}\bold{i_1}$. We present the conjugates and the moduli associated with the bicomplex numbers. Then we study the bicomplex Schrödinger equation and found the continuity equations. The discrete symmetries of the system of equations describing the bicomplex Schrödinger equation are obtained. Finally, we study the bicomplex Born formulas under the discrete symetries. We obtain the standard Born's formula for the class of bicomplex wave functions having a null hyperbolic angle.
Václav Bok: Der Breslauer Stadtschreiber Peter Eschenloer.
Creators: name: Stachowiak, Remigius
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 4 (2020)
Nuclear Structure at the Crossroads
Creators: name: Furnstahl, R. J.
name: Hammer, H. -W.
name: Schwenk, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Steven Weinberg's seminal papers from 1990-92 initiated the use of effective field theories (EFTs) for nuclei. We summarize progress, priorities, and open questions for nuclear EFT developments based on the 2019 INT program "Nuclear Structure at the Crossroads."
description: 15 pages, Contribution to Special Issue: Celebrating 30 years of Steven Weinberg's papers on Nuclear Forces from Chiral Lagrangians; published version
Generating Electron Beam Lithography Write Parameters from the FORTIS Holographic Grating Solution
Creators: name: Carlson, Mackenzie
name: McCandliss, Stephan
name: McEntaffer, Randall
name: Grisé, Fabien
name: Kruczek, Nicholas
name: Fleming, Brian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Far-UV Off Rowland-circle Telescope for Imaging and Spectroscopy (FORTIS) has been successful in maturing technologies for carrying out multi-object spectroscopy in the far-UV, including: the successful implementation of the Next Generation of Microshutter Arrays; large-area microchannel plate detectors; and an aspheric "dual-order" holographically ruled diffraction grating with curved, variably-spaced grooves with a laminar (rectangular) profile. These optical elements were used to construct an efficient and minimalist "two-bounce" spectro-telescope in a Gregorian configuration. However, the susceptibility to Lyman alpha (Ly$α$) scatter inherent to the dual order design has been found to be intractably problematic, motivating our move to an "Off-Axis" design. OAxFORTIS will mitigate its susceptibility to Ly$α$ by enclosing the optical path, so the detector only receives light from the grating. The new design reduces the collecting area by a factor of 2, but the overall effective area can be regained and improved through the use of new high efficiency reflective coatings, and with the use of a blazed diffraction grating. This latter key technology has been enabled by recent advancements in creating very high efficiency blazed gratings with impressive smoothness using electron beam lithography and chemical etching to create grooves in crystalline silicon. Here we discuss the derivation for the OAxFORTIS grating solution as well as methods used to transform the FORTIS holographic grating recording parameters (following the formalism of Noda et al.1974a,b), into curved and variably-spaced rulings required to drive the electron beam lithography write-head in three dimensions. We will also discuss the process for selecting silicon wafers with the proper orientation of the crystalline planes and give an update on our fabrication preparations.
description: 10 pages, 6 figures, to appear in Proc. of SPIE Vol. 11821, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXII
Quantum Hall Effect in AdS/CFT
Creators: name: Keski-Vakkuri, Esko
name: Kraus, Per
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Drawing on the connection with superconductivity, we give a simple AdS realization of the quantum Hall effect. The theory includes a statistical gauge field with a Chern-Simons term, in analogy with effective field theory models of the QHE.
description: 12 pages
Local electronic structure and magnetic properties of LaMn0.5Co0.5O3 studied by x-ray absorption and magnetic circular dichroism spectroscopy
Creators: name: Burnus, T.
name: Hu, Z.
name: Hsieh, H. H.
name: Joly, V. L. J.
name: Joy, P. A.
name: Haverkort, M. W.
name: Wu, Hua
name: Tanaka, A.
name: Lin, H. -J.
name: Chen, C. T.
name: Tjeng, L. H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have studied the local electronic structure of LaMn0.5Co0.5O3 using soft-x-ray absorption spectroscopy at the Co-L_3,2 and Mn-L_3,2 edges. We found a high-spin Co^{2+}--Mn^{4+} valence state for samples with the optimal Curie temperature. We discovered that samples with lower Curie temperatures contain low-spin nonmagnetic Co^{3+} ions. Using soft-x-ray magnetic circular dichroism we established that the Co^{2+} and Mn^{4+} ions are ferromagnetically aligned. We revealed also that the Co^{2+} ions have a large orbital moment: m_orb/m_spin ~ 0.47. Together with model calculations, this suggests the presence of a large magnetocrystalline anisotropy in the material and predicts a non-trivial temperature dependence for the magnetic susceptibility.
description: 8 pages, 7 figures
Bubble-Wrap for Bullets: The Stability Imparted By A Thin Magnetic Layer
Creators: name: Dursi, L. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: There has been significant recent work which examines a situation where a thin magnetic layer is `draped' over a core merging into a larger cluster; the same process also appears to be at work at a bubble rising from the cluster centre. Such a thin magnetic layer could thermally isolate the core from the cluster medium, but only if the same shear process which generates the layer does not later disrupt it. On the other hand, if the magnetized layer can stabilize against the shear instabilities, then the magnetic layer can have the additional dynamical effect of reducing the shear-driven mixing of the core's material during the merger process. These arguments could equally well to underdense cluster bubbles, which would be even more prone to disruption. While it is well known that magnetic fields can suppress instabilities, it is less clear that a thin layer can suppress instabilities on scales significantly larger than its thickness. Here we consider the stability imparted by a thin magnetized layer. Such a layer can have a significant stabilizing effect even on modes with wavelengths much larger than the thickness of the layer l; to stabilize modes ten times larger requires only that the Alfvén speed in the magnetized layer is comparable to the relevant destabilizing velocity -- the shear velocity in the case of pure Kelvin-Helmholtz like instability, or a typical buoyancy velocity in the case of pure Rayleigh-Taylor. We confirm our calculations with two-dimensional numerical experiments using the Athena code.
description: 20pp, 10 figures; ApJ in press. Please email any comments. v2: Typo in Atwood number definition fixed, and resolution study mentioned. v3: As accepted by ApJ
Velocity microstructure measurements in the western and central equatorial Pacific
Creators: name: Moum, James Norman
Publisher: name: University of British Columbia
Year: 2010

description: Measurements of velocity microstructure were made in two quite different oceanic regimes using the free-falling profiler, Camel III. In conjunction with the Pacific Equatorial Ocean Dynamics (PEQUOD) expedition, profiles were made at or near the equator between 138°W and 153°W. Estimates of the rate of dissipation of turbulent kinetic energy, e, made from the velocity microstructure measurements are surprisingly small in magnitude. Averaged values at 70, 90 and 110 meters (in the region of large mean shear just above the core of the equatorial undercurrent) are more than ten times smaller than those previously reported. The dissipation integrated from the level of no zonal velocity (≈ 70 meters) to the undercurrent core is less than 10% of an estimate made of the work done by the zonal pressure gradient. It is possible that the proposed balance between the work done by the zonal pressure gradient and the turbulent friction does not hold at all places at all times for the equatorial undercurrent. A second set of measurements was made along 152°E between 27°N and 42°N, south of the Kuroshio Extension current. A strong main thermocline between 500 and 800 meters depth and south of 34°N manifested itself as a secondary subsurface maximum in buoyancy frequency, N, which concurred with a subsurface maximum in averaged dissipation. A plot of e vs N indicates that e scales with N rather than depth. A simple model was developed to explain the relatively greater occurrence of turbulent patches in the main thermocline which assumes that the turbulence is generated by internal waves. The prediction of the probability of occurrence of small Richardson number is proportional to e[sup -1/N] which predicts the shape of the distribution of the turbulence relatively successfully.
Direct photons ~basis for characterizing heavy ion collisions~
Creators: name: Sakaguchi, Takao
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: After years of experimental and theoretical efforts, direct photons become a strong and reliable tool to establish the basic characteristics of a hot and dense matter produced in heavy ion collisions. The recent direct photon measurements are reviewed and a future prospect is given.
description: 8 pages, 8 figures, Invited plenary talk at Quark Matter 2008
Too Small to Succeed? East Central Europe and the Historical Study of State Assessment
Creators: name: Richter, Klaus
name: Hein-Kircher, Heidi
Publisher: name: Journal of East Central European Studies
Year: 2020

description: In the three essays of the newly established JECES “forum” in issue 2/2018, three col-leagues posit contemporary East Central Europe as “interwar period 2.0” and emphasize the significance of references to interwar history in contemporary memory politics. Their contributions point out the importance of these historical references for nation and state building after 1989/90 and for contemporary national identities. Building on this diagnosis, we would like to propose a methodological framework that looks at state-building in East Central Europe from a different perspective: by taking as an object of study the broad range of different—and often negative—views on the performance and capabilities of the states of East Central Europe from the nineteenth century until today. We argue that if we want to understand the various conflicts that affected—and continue to affect—the devel¬opment of states in this region, we need to understand how views on states shape activities towards states. If we achieve this, we can challenge deeply entrenched narratives—both popular and historiographical—that center around the idea of the inevitable collapse of states in East Central Europe, be they the Polish-Lithuanian Commonwealth, the Habsburg and Romanov Empires, the interwar states or the states of the Warsaw Pact.
description: Journal of East Central European Studies, Bd. 69 Nr. 4 (2020)
Leptophilic Gauge Bosons at ILC Beam Dump Experiment
Creators: name: Asai, Kento
name: Moroi, Takeo
name: Niki, Atsuya
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the prospects of searching for leptophilic gauge bosons (LGBs) at the beam dump experiment using $e^\pm$ beams of International $e^+e^-$ Linear Collider (ILC). We consider LGBs in association of $U(1)_{e-μ}$, $U(1)_{e-τ}$, and $U(1)_{μ-τ}$ gauge symmetries, which are assumed to be light and long-lived. Utilizing the energetic electron and positron beams of the ILC, we show that the ILC beam dump experiment can cover the parameter regions which have not been explored before. We also discuss the possibility of distinguishing various models.
Spin currents in rough graphene nanoribbons: Universal fluctuations and spin injection
Creators: name: Wimmer, M.
name: Adagideli, I.
name: Berber, S.
name: Tomanek, D.
name: Richter, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate spin conductance in zigzag graphene nanoribbons and propose a spin injection mechanism based only on graphitic nanostructures. We find that nanoribbons with atomically straight, symmetric edges show zero spin conductance, but nonzero spin Hall conductance. Only nanoribbons with asymmetrically shaped edges give rise to a finite spin conductance and can be used for spin injection into graphene. Furthermore, nanoribbons with rough edges exhibit mesoscopic spin conductance fluctuations with a universal value of $\mathrm{rms} G_\mathrm{s}\approx 0.4 e/4π$.
description: 4 pages, 5 figures, PdfLaTeX, accepted for publication in Physical Review Letters
Teatro o...?
Creators: name: Zaccagnino, Maria Carmela
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: The article analyses Sambin's role similar to the actor and the  performer but at the same time different from them too, a kind of  tertium whose expressive power is given to the synesthesia and  synchronism of the various artistical languages use
description: Annali Online  Lettere - Ferrara, II 1 (2007)
Racconti di retorica: rappresentazioni della retorica in atto in pagine della narrativa moderna
Creators: name: Spina, Luigi
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: «Nota an end but a beginning». In a novel written by Achille Campanile, a  teacher of rhetoric explains this formula which then he applies to  persuade his pupils of his method. The presence of orators and of  rhetorical speeches in the modern narrative is very interesting to  analyze and to compare with the opinion people have about rhetoric and  his use in everyday life, from political speech to eulogy.
description: Annali Online  Lettere - Ferrara, IV 2 (2009)
Cesare, La guerra civile.Introduzione di Giovanni Cipriani e Grazia Maria Masselli, traduzione di Lorenzo Montanari, con un saggio di Federica Introna. Testo latino a fronte. Siena. Barbera. 2008. pp. 360.
Creators: name: Spina, Luigi
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Annali Online  Lettere - Ferrara, IV 2 (2009)
How the “Richta Team” Was Born: The Scientific and Technological Revolution and Political Decision-making in Czechoslovak Reform Communism
Creators: name: Hoppe, Jiří
name: Sommer, Vítězslav
Publisher: name: Journal of East Central European Studies
Year: 2020

description: The following article is a case study on the relationship between expertise and political de-cision-making in the “Eastern Bloc.” It focuses on the attempt to reform state socialism, which took place in Czechoslovakia in the 1960s. This effort was linked to the extensive involvement of experts in the policy-making of the Communist Party of Czechoslovakia (CPCz). Using the example of the research on the “Scientific and Technological Revolu¬tion” (STR), headed by philosopher Radovan Richta, this article examines the close ties between high politics and knowledge production in state socialism. This article analyzes the STR project from the perspective of the intellectual history of Reform Communism and situates the STR theory in a broader context of post-Stalinist political thought. In its second part this study examines how the STR research team was established. This in¬stitutional history shows that the STR project was not only the result of intellectual and political aspirations of reform-oriented intellectuals, but also emerged as a consequence of the attempt of the Party leadership to revitalize its central ideology apparat. The efforts to update the official ideology, in order to react to the demise of Stalinism and to promote new economic policies, resulted in the establishment of an intellectually innovative and internationally acclaimed research project, which provided a theoretical background for far-reaching reform policies of the Prague Spring era.
description: Journal of East Central European Studies, Bd. 69 Nr. 4 (2020)
The Moment between Occupation and Freedom: Forms of Collective Violence at the End of World War II in the Czech Lands
Creators: name: Mrňka, Jaromír
Publisher: name: Journal of East Central European Studies
Year: 2020

description: The paper focuses on the violent interactions that occurred in the Czech lands at the end of World War II. By analyzing the structure, forms and causes of acts of collective violence, the author attempts to answer to what extent they were the result of either spontaneous popular anger or targeted state policies. This study is a response to the conventional thesis of Czech historiography about the so-called “wild expulsions,” which has misleadingly stated that, from the immediate post-war days until long into the summer of 1945, sponta­neous acts of violence were persisting, for which, however, the Czechoslovak state did not bear responsibility. Unlike most previous studies, therefore, it focuses not only on the period following the liberation of Czechoslovakia, but also in more detail on the links be­tween the waning Nazi terror, the final war operations and the outrageous post-war retalia­tion. Based on concrete cases of the anti-Nazi uprising and post-war Czech cleansing from Germans, the author uncovers specific actors, their mutual interactions in groups and con­ditions that allowed the escalation of mass atrocities. He proves that spontaneous acts of violence were associated with transitional rituals and brutalization and occurred only for a limited time of a few post-war days. Thus, at the end of the war, collective violence re­mained an integral part of state policy in both Nazi and Czechoslovakian rule. These two regimes relied heavily on violence specialists to exercise their power and limited the space for manifestations of spontaneous popular anger. The author stresses that the main factor influencing the dynamics of violence were two simultaneous but uneven processes: the Nazi system of government was collapsing, while the Czechoslovak state power was being restored.
description: Journal of East Central European Studies, Bd. 69 Nr. 4 (2020)
Bishop Andrew of Prague and Church in Medieval Czech Lands after the Fourth Lateran Council
Creators: name: Antonín, Robert
Publisher: name: Journal of East Central European Studies
Year: 2020

description: The paper focuses on the personal actions of Bishop Andrew of Prague and the situation within the church in the Czech Lands after the Fourth Lateran Council. Andrew is a central representative in the process of immediate reception of the Fourth Lateran Council in the Czech Lands. Previous research has focused on the fundamental question of Andrews’s episcopate: his conflict with King Ottokar I regarding the church reforms introduced in the Czech Lands between 1216 and 1222. However, it is necessary to study the conflict in a long-term perspective (from the middle of the twelfth till the end of the thirteenth centu¬ries) and in the context of the promotion of the patronage law, the judicial exemption of clergy, and the enforcement of church control over tithes. The analysis shows that the church was a strongly decentralized institution controlled by local lay elites and damaged by nepotism. The private life of the clergy was corrupted by concubinage and, resulting from that, we can see attempts to create “clerical dynasties.” The route to a change only began with Bishop Andrew and the implementation of the change would not have been possible without the overall transformations of the political, economic, social and mental structures.
description: Journal of East Central European Studies, Bd. 69 Nr. 4 (2020)
Growth and Characterization of Off-Stoichiometric LaVO$_3$ Thin Films
Creators: name: Zhang, Biwen
name: Xin, Yan
name: Karapetrova, Evguenia
name: Holleman, Jade
name: McGill, Stephen A.
name: Beekman, Christianne
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: LaVO$_3$ (LVO) has been proposed as a promising material for photovoltaics because its strongly correlated \textit{d} electrons can facilitate the creation of multiple electron-hole pairs per incoming photon, which would lead to increased device efficiency. In this study, we intentionally grow off-stoichiometric LVO films by changing the growth conditions such as laser fluence. Our aim is to study how deviating La:V stoichiometries affect the electronic properties of LVO thin films. We find that the off-stoichiometry clearly alters the physical properties of the films. Structural characterization shows that both La-rich and V-rich films have different levels of structural distortion, with La-rich (V-rich) films showing a larger (smaller) out-of-plane lattice parameter compared to what one would expect from epitaxial strain effects alone. Both types of films show deviation from the behavior of bulk LVO in optical measurement, i.e., they do not show signatures of the expected long range orbital order, which can be a result of the structural distortions or the presence of structural domains. In transport measurements, La-rich films display clear signatures of electronic phase separation accompanying a temperature induced metal-insulator transition, while V-rich films behave as Mott insulators. The out-of-plane lattice parameter plays a crucial role in determining the transport properties, as the crossover from Mott-insulating to disorder-induced phase-separated behavior occurs around a lattice parameter value of 3.96 $\overset{\circ}{\mathrm{A}}$, quite different from what has been previously reported.
description: Main text: 8 pages, 9 figures; Supplementary materials: 5 pages, 7 figures
Helmut Neubach: Posen – Preußens ungeliebte Provinz. Beiträge zur Geschichte des deutsch-polnischen Verhältnisses 1815–1918. Hrsg. von Wolfgang Kessler
Creators: name: Schutte, Christoph
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 3 (2020)