cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The appraisal of Canadian military personnel files of the First World War
Creators: name: Mitchell, Gary A.
Publisher: name: University of British Columbia
Year: 2010

description: Faced with the great and expanding volume of modern records created by government and other bodies, archivists have necessarily had to make choices about what to preserve and what to destroy. The conceptual basis for appraisal and practical implementation of appraisal in any given body of records are still matters not thoroughly worked out by archivists and archives. This thesis examines the conceptual basis of appraisal as it has been revealed in the literature on the subject, and applies to concepts found in the literature to appraisal of World War I military personnel files. The research strategy involves a reading of the professional literature on appraisal to determine the concepts which have been developed to rule the appraisal process, a survey of the disposition of military personnel records by several combatant states during World War I, and an analysis of Canadian military personnel records of the Canadian Expeditionary Force during World War I. Some attention has been paid to the military historiography and in particular to studies that appear to be relevant to a discussion of appraisal of military personnel records. It was found that by and large military personnel records were not treated as are other personnel or case files, which have rarely been preserved in their entirety by archives. Although the reasons for this are not entirely clear, a study of the CEF military personnel records suggests that they can be objectively analysed in the way archivists have proposed for other records. It is proposed that an initial analysis based on standards contemporary with the records can be undertaken, and a further, later appraisal can be made based on the research use to which the records are put in the interval. As well, the various options open to the Public Archives of Canada, which holds the CEF military personnel records, are discussed.
Roswitha Schieb: Schlesien – Geschichte, Landschaft, Kultur. Mit Fotos von Marek Maruszak
Creators: name: Schmerbauch, Maik
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 3 (2020)
Outflow Driven Turbulence in Molecular Clouds
Creators: name: Carroll, Jonathan J.
name: Frank, Adam
name: Blackman, Eric G.
name: Cunningham, Andrew J.
name: Quillen, Alice C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we explore the relationship between protostellar outflows and turbulence in molecular clouds. Using 3-D numerical simulations we focus on the hydrodynamics of multiple outflows interacting within a parsec scale volume. We explore the extent to which transient outflows injecting directed energy and momentum into a sub-volume of a molecular cloud can be converted into random turbulent motions. We show that turbulence can readily be sustained by these interactions and show that it is possible to broadly characterize an effective driving scale of the outflows. We compare the velocity spectrum obtained in our studies to that of isotropically forced hydrodynamic turbulence finding that in outflow driven turbulence a power law is indeed achieved. However we find a steeper spectrum (beta ~ 3) is obtained in outflow driven turbulence models than in isotropically forced simulations (beta ~ 2). We discuss possible physical mechanisms responsible for these results as well and their implications for turbulence in molecular clouds where outflows will act in concert with other processes such as gravitational collapse.
description: 12 pages, 3 figures
Nanoscale control of exchange bias with BiFeO3 thin films
Creators: name: Martin, Lane W.
name: Chu, Ying-Hao
name: Holcomb, Mikel B.
name: Huijben, Mark
name: Han, Shu-Jen
name: Lee, Donkoun
name: Wang, Shan X.
name: Ramesh, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We demonstrate a direct correlation between the domain structure of multiferroic BiFeO3 thin films and exchange bias of Co0.9Fe0.1/BiFeO3 heterostructures. Two distinct types of interactions, an enhancement of the coercive field (exchange enhancement) and an enhancement of the coercive field combined with large shifts of the hysteresis loop (exchange bias), have been observed in these heterostructures, which depend directly on the type and crystallography of the nanoscale (2 nm) domain walls in the BiFeO3 film. We show that the magnitude of the exchange bias interaction scales with the length of 109 degree ferroelectric domain walls in the BiFeO3 thin films which have been probed via piezoresponse force microscopy and x-ray magnetic circular dichroism.
description: Accepted to Nano Letters May 2008
Der Breslauer Psalter. MS 36-1950 Cambridge. The Fitzwilliam Museum. Kommentar zur Faksimile-Edition / The Breslau Psalter. MS 36-1950 Cambridge. The Fitzwilliam Museum. Commentary to the Facsimile Edition. Mit Beiträgen von Stella Panayotova, Nigel J. Morgan und Paola Ricciardi
Creators: name: Lipinsky, Jan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 3 (2020)
Patrizia Guida, Scrittrici di Puglia. Percorsi storiografici femminili dal XVI al XX secolo. Galatina. Mario Congedo Editore. 2008. pp. 495.
Creators: name: De Paolis, Alessandra
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Annali Online  Lettere - Ferrara, IV 2 (2009)
A Spitzer IRAC Census of the Asymptotic Giant Branch Populations in Local Group Dwarfs. II. IC 1613
Creators: name: Jackson, Dale C.
name: Skillman, Evan D.
name: Gehrz, Robert D.
name: Polomski, Elisha
name: Woodward, Charles E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Spitzer Space Telescope IRAC photometry of the Local Group dwarf irregular galaxy IC 1613. We compare our 3.6, 4.5, 5.8, and 8.0 micron photometry with broadband optical photometry and find that the optical data do not detect 43% and misidentify an additional 11% of the total AGB population, likely because of extinction caused by circumstellar material. Further, we find that a narrowband optical carbon star study of IC 1613 detects 50% of the total AGB population and only considers 18% of this population in calculating the carbon to M-type AGB ratio. We derive an integrated mass-loss rate from the AGB stars of 0.2-1.0 x 10^(-3) solar masses per year and find that the distribution of bolometric luminosities and mass-loss rates are consistent with those for other nearby metal-poor galaxies. Both the optical completeness fractions and mass-loss rates in IC 1613 are very similar to those in the Local Group dwarf irregular, WLM, which is expected given their similar characteristics and evolutionary histories.
description: Accepted by ApJ, 26 pages, 10 figures, version with high-resolution figures available at: http://webusers.astro.umn.edu/~djackson/
L'aceto nel cuore
Creators: name: Bianco, Maurizio Massimo
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: In Plautus' theatre, a widespread element of the Roman material culture,  as vinegar, becomes part of a well-structured metaphorical plane: from  the image of sourness in feelings, which is long-running in the comic  tradition, to the acetum as a metaphor of wit and cunning  intelligence, lined with the meaning offered afterwards by Horace. In  the Plautine comedy, vinegar, with effect from the gastronomic level, is  connected with the representation of an acutus person, able to handle a situation full of unexpected events: in Pseudolus it results as a suitable synthesis of an effective simulatio. At the end we examine a passage of Rudens, in which 'salt' and 'vinegar' are conceived as necessary ingredients of a deceptive cooking.
description: Annali Online  Lettere - Ferrara, IV 2 (2009)
Computing word length in alternate presentations of Thompson's group F
Creators: name: Horak, Matthew
name: Stein, Melanie
name: Taback, Jennifer
Publisher: name: arXiv
Year: 2007
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F65

description: We introduce a new method for computing the word length of an element of Thompson's group F with respect to a "consecutive" generating set of the form X_n={x_0,x_1,...,x_n}, which is a subset of the standard infinite generating set for F. We use this method to show that (F,X_n) is not almost convex, and has pockets of increasing, though bounded, depth dependent on n.
description: 28 pages, 13 figures
Ultrafast Optical-Pump Terahertz-Probe Spectroscopy of the Carrier Relaxation and Recombination Dynamics in Epitaxial Graphene
Creators: name: George, Paul A.
name: Strait, Jared
name: Dawlaty, Jahan
name: Shivaraman, Shriram
name: Chandrashekhar, Mvs
name: Rana, Farhan
name: Spencer, Michael G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The ultrafast relaxation and recombination dynamics of photogenerated electrons and holes in epitaxial graphene are studied using optical-pump Terahertz-probe spectroscopy. The conductivity in graphene at Terahertz frequencies depends on the carrier concentration as well as the carrier distribution in energy. Time-resolved studies of the conductivity can therefore be used to probe the dynamics associated with carrier intraband relaxation and interband recombination. We report the electron-hole recombination times in epitaxial graphene for the first time. Our results show that carrier cooling occurs on sub-picosecond time scales and that interband recombination times are carrier density dependent.
description: 4 pages, 5 figures
Smart Adaptive Mesh Refinement with NEMoSys
Creators: name: Patel, Akash A.
name: Safdari, Masoud
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: I.4.8; I.5.4; I.2.6
subject: 76-10 (Primary)

description: Adaptive mesh refinement (AMR) offers a practical solution to reduce the computational cost and memory requirement of numerical simulations that use computational meshes. In this work, we introduce a novel smart methodology for adaptive mesh refinement. Smart adaptive refinement blends classical AMR with machine learning to address some of the known issues of the conventional approaches. We provide an algorithm for adaptive refinement. Subsequently, we introduce a modular object-oriented structure for our smart AMR algorithm. Then we present procedures used for the training of a smart AMR model. The study follows with a demonstration of preliminary numerical studies indicating the feasibility of performing adaptive mesh refinement on a few demonstrative problems selected from the CFD domain. Finally, we conclude with a few comments about future work.
description: 12 pages, 11 figures, AIAA SciTech 2021 Conference
Energy of tsunami waves generated by bottom motion
Creators: name: Dutykh, Denys
name: Dias, Frédéric
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Analysis of PDEs (math.AP)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Computational Physics (physics.comp-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In the vast literature on tsunami research, few articles have been devoted to energy issues. A theoretical investigation on the energy of waves generated by bottom motion is performed here. We start with the full incompressible Euler equations in the presence of a free surface and derive both dispersive and non-dispersive shallow-water equations with an energy equation. It is shown that dispersive effects only appear at higher order in the energy budget. Then we solve the Cauchy-Poisson problem of tsunami generation for the linearized water wave equations. Exchanges between potential and kinetic energies are clearly revealed.
description: 20 pages, 12 figures. Accepted to Proceedings of the Royal Society A. Other authors papers and supporting material can be downloaded at http://www.lama.univ-savoie.fr/~dutykh
Bootstrap of means under stratified sampling
Creators: name: Pons, Odile
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62F12, 60F40 (Primary)

description: In a two-stage cluster sampling procedure, $n$ random populations are drawn independently from independent populations and a sub-sample of observations is taken in each of them. The estimator of the general mean of the observed variables is asymptotically Gaussian and the asymptotic distributions of several bootstrap versions of the normalized and studentized statistics are studied. A weighted population resampling provides a good approximation and its accuracy depends on the convergence rate of the sample size of the populations.
description: Published in at http://dx.doi.org/10.1214/07-EJS033 the Electronic Journal of Statistics (http://www.i-journals.org/ejs/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Economic determinants of interprovincial migration in British Columbia
Creators: name: Trépanier, Marie
Publisher: name: University of British Columbia
Year: 2010

description: Given the fundamental importance of population base to the level of economic activity, an accurate population estimate is essential to most planners. Interprovincial migration is the major factor in differing regional population growth. Hence an understanding of the Canadian "footloose" behaviour of individuals is invaluable. The purpose of this thesis was twofold: first to find the economic determinants of interprovincial migration for two-age cohorts (the working and the retired), for the 1966-1981 (ex-post) and second to forecast the number of working migrants for 1982 (ex-ante). The case of British Columbia was used. The main sources of migration data were the number of account transfers for family allowance and old age security benefits. Structural and time-series models were investigated. The former were used for explaining and forecasting purposes and the latter for forecasting purposes only. The techniques applied were ordinary least squares for the structural models and unconditional non-linear least squares with back forecasting (Box and Jenkins) for the time-series models. The outcome was that income variables, labour variables, housing prices, personal taxes, cost of living variables and housing market variables were all significant determinants of interprovincial migration. One exception was the out-migration of the elderly group where only housing prices and cost of living variables had any significance. The results also indicated that first the elderly were more sensitive to housing prices, personal taxes and cost of living differentials between British Columbia and the rest of Canada and second the two-age cohorts had similar elasticities to migrate for labour and housing market variables. Finally, in combining ex-ante and ex-post results, it was shown that the optimum solution for determining net migration of the working was in-migration estimates minus out-migration estimates using the structural models.
Nina Seiler: Privatisierte Weiblichkeit. Genealogien und Einbettungsstrategien feministischer Kritik im postsozialistischen Polen
Creators: name: Śliwińska, Katarzyna
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 3 (2020)
Recent results on 4-body, charm semileptonic decays
Creators: name: Wiss, Jim
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We summarize recent data on 4-body charm semileptonic decay concentrating on \kklndk{} and \kpilndk{}. We begin with giving some motivation for the study of these decays. We discuss several of the models traditionally used to describe these decays and conclude by presenting a non-parametric analysis of \kpiendk{} and its possible extension into non-parametric studies of \kpimndk{}.
description: To be published in the proceedings of CHARM07, Ithaca, NY, August 2007, eConf C070805
Reionization and the large-scale 21 cm-cosmic microwave background cross correlation
Creators: name: Adshead, Peter
name: Furlanetto, Steven
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Of the many probes of reionization, the 21 cm line and the cosmic microwave background (CMB) are among the most effective. We examine how the cross-correlation of the 21 cm brightness and the CMB Doppler fluctuations on large angular scales can be used to study this epoch. We employ a new model of the growth of large scale fluctuations of the ionized fraction as reionization proceeds. We take into account the peculiar velocity field of baryons and show that its effect on the cross correlation can be interpreted as a mixing of Fourier modes. We find that the cross-correlation signal is strongly peaked toward the end of reionization and that the sign of the correlation should be positive because of the inhomogeneity inherent to reionization. The signal peaks at degree scales (l~100) and comes almost entirely from large physical scales (k~0.01 Mpc). Since many of the foregrounds and noise that plague low frequency radio observations will not correlate with CMB measurements, the cross correlation might appear to provide a robust diagnostic of the cosmological origin of the 21 cm radiation around the epoch of reionization. Unfortunately, we show that these signals are actually only weakly correlated and that cosmic variance dominates the error budget of any attempted detection. We conclude that the detection of a cross-correlation peak at degree-size angular scales is unlikely even with ideal experiments.
description: 15 pages, 4 figures, submitted to MNRAS
The w-index: A significant improvement of the h-index
Creators: name: Wu, Qiang
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: I propose a new measure, the w-index, as a particularly simple and useful way to assess the integrated impact of a researcher's work, especially his or her excellent papers. The w-index can be defined as follows: If w of a researcher's papers have at least 10w citations each and the other papers have fewer than 10(w+1) citations, his/her w-index is w. It is a significant improvement of the h-index.
description: 7 pages, 3 tables, small changes from v2
ICHAK YETISHMOVCHILIGI BO'LGAN BOLALARDA ENDOGEN INTOKSIKATSIYANING IMMUNOLOGIK REAKTIVLIK HOLATIGA TA'SIRI
Creators: name: Ulug'muratov, A.A.
name: Mamatov, S.O
name: Xidirov, L.A.
Publisher: name: Zenodo
Year: 2023

description: Bolalarda Cl miqdorining ko'payishi va jarayonning og’irligi bolaning reaktivligiga bog’liqligi va gomeostazni himoya qilish tizimlarining o’ziga xos va o’ziga xos bo’lmagan reaktivligining o’zgarishi yuqumli jarayonning rivojlanishining birinchi va asosiy sharti ekanligi to’g’risida ishonchli ma’lumotlar tobora ko’payib bormoqda. Shu munosabat bilan bizning keyingi vazifamiz Cl bilan zararlangan yosh bolalarning immunologik reaktivligiga endogen intoksikatsiyaning ta’sirini o’rganish edi.
Chartered bank ownership of common equities : implications for Canada
Creators: name: Zelmer, Daniel Mark
Publisher: name: University of British Columbia
Year: 2010

description: The objective of this thesis is to examine the potential ramifications of allowing Canadian chartered A banks to invest in domestic common equities in excess of current regulations. The need for these investments has been born through attempts by companies to seek new common equity so that they may avoid financial catastrophe. However, as time goes on, it is a practice which can be expected to widen in popularity as chartered banks adjust to their new role as venture-capitalists. We begin our analysis by examining the impact of common equity investments on the financial performance of the chartered banks. Our approach is to conduct simulation studies of chartered bank performance using the Toronto Stock Exchange 300 index as a proxy for common equity behaviour. By adjusting bank financial statements to reflect assumed equity investment levels, we are able to demonstrate the probable impact on a bank's profitability, liquidity, and solvency. The above is followed by an examination of the potential impact of bank common equity holdings on the existing financial markets. In particular, we seek to examine the probable effect on the cost and availability of funds within the debt and equity markets. Finally, we strive to evaluate the public policy issues which are associated with bank common equity investments. These range from fears of potential power abuses derived from the corporate voting-power of common equity, to the impact on corporate bankruptcy costs. Our evaluation is based on a combination of traditional economic theory, along with drawing heavily from the West German experience where bank ownership of common equity has deep historical roots. In general, our findings indicate that chartered bank ownership of common equities should be encouraged subject to several limitations. These limitations are designed to ensure banking system financial stability, as well as to minimize any potential power abuses. In addition, any movement towards bank ownership of common equities should be accompanied by deregulation of traditional banking services so as to ensure minimal disruption to existing markets and services.
On the sl(2) foam cohomology computations
Creators: name: Caprau, Carmen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27

description: We show how to use Bar-Natan's `divide and conquer' approach to computations to efficiently compute the universal sl(2) dotted foam cohomology groups, even for big knots and links. We also describe a purely topological version of the sl(2) foam theory, in the sense that no dots are needed on foams.
description: 16 pages, many figures
The FIRST-2MASS Red Quasar Survey
Creators: name: Glikman, Eilat
name: Helfand, David J.
name: White, Richard L.
name: Becker, Robert H.
name: Gregg, Michael D.
name: Lacy, Mark
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Combining radio observations with optical and infrared color selection -- demonstrated in our pilot study to be an efficient selection algorithm for finding red quasars -- we have obtained optical and infrared spectroscopy for 120 objects in a complete sample of 156 candidates from a sky area of 2716 square degrees. Consistent with our initial results, we find our selection criteria -- J-K>1.7, R-K>4.0 -- yield a ~50% success rate for discovering quasars substantially redder than those found in optical surveys. Comparison with UVX- and optical color-selected samples shows that >~ 10% of the quasars are missed in a magnitude-limited survey. Simultaneous two-frequency radio observations for part of the sample indicate that a synchrotron continuum component is ruled out as a significant contributor to reddening the quasars' spectra. We go on to estimate extinctions for our objects assuming their red colors are caused by dust. Continuum fits and Balmer decrements suggest E(B-V) values ranging from near zero to 2.5 magnitudes. Correcting the K-band magnitudes for these extinctions, we find that for K <= 14.0, red quasars make up between 25% and 60% of the underlying quasar population; owing to the incompleteness of the 2MASS survey at fainter K-band magnitudes, we can only set a lower limit to the radio-detected red quasar population of >20-30%.
description: 80 pages (single-column, preprint format) 20 figures, Accepted for publicated in ApJ
Natural Neutrino Masses and Mixings from Warped Geometry
Creators: name: Perez, Gilad
name: Randall, Lisa
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We demonstrate that flavor symmetries in warped geometry can provide a natural explanation for large mixing angles and economically explain the distinction between the quark and lepton flavor sectors. We show how to naturally generate Majorana neutrino masses assuming a gauged a U(1)_{B-L} symmetry broken in the UV that generates see-saw masses of the right size. This model requires lepton minimal flavor violation (LMFV) in which only Yukawa matrices (present on the IR brane) break the flavor symmetries. The symmetry-breaking is transmitted to charged lepton bulk mass parameters as well to generate the hierarchy of charged lepton masses. With LMFV, a GIM-like mechanism prevents dangerous flavor-changing processes for charged leptons and permits flavor-changing processes only in the presence of the neutrino Yukawa interaction and are therefore suppressed when the overall scale for the neutrino Yukawa matrix is slightly smaller than one in units of the curvature. In this case the theory can be consistent with a cutoff of 10 TeV and 3 TeV Kaluza-Klein masses.
description: 18 pages, 3 figures, to match with published version
History of Astronomy in Australia: Big-Impact Astronomy from World War II until the Lunar Landing (1945-1969)
Creators: name: Graham, Alister W.
name: Kenyon, Katherine H.
name: Bull, Lochlan J.
name: Don, Visura C. Lokuge
name: Kuhlmann, Kazuki
Publisher: name: arXiv
Year: 2021
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Radio astronomy commenced in earnest after World War II, with Australia keenly engaged through the Council for Scientific and Industrial Research. At this juncture, Australia's Commonwealth Solar Observatory expanded its portfolio from primarily studying solar phenomena to conducting stellar and extragalactic research. Subsequently, in the 1950s and 1960s, astronomy gradually became taught and researched in Australian universities. However, most scientific publications from this era of growth and discovery have no country of affiliation in their header information, making it hard to find the Australian astronomy articles from this period. In 2014, we used the then-new Astrophysics Data System (ADS) tool Bumblebee to overcome this challenge and track down the Australian-led astronomy papers published during the quarter of a century after World War II, from 1945 until the lunar landing in 1969. This required knowledge of the research centres and facilities operating at the time, which are briefly summarised herein. Based on citation counts -- an objective, universally-used measure of scientific impact -- we report on the Australian astronomy articles which had the biggest impact. We have identified the top-ten most-cited papers, and thus also their area of research, from five consecutive time-intervals across that blossoming quarter-century of astronomy. Moreover, we have invested a substantial amount of time researching and providing a small tribute to each of the 62 scientists involved, including several trail-blazing women. Furthermore, we provide an extensive list of references and point out many interesting historical connections and anecdotes.
description: To appear in "A Trip across the Universe: Our Present Knowledge and Future Perspectives", Emilio Elizalde (Ed.), Galaxies, Multidisciplinary Digital Publishing Institute (MDPI)
Smooth maps of a foliated manifold in a symplectic manifold
Creators: name: Datta, Mahuya
name: Islam, Md. Rabiul
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 57R99, 58D10, 58J99

description: The immersions of a smooth manifold $M$ in a symplectic manifold $(N,σ)$ inducing a given closed form $ω$ on $M$ satisfy the $C^0$-dense $h$-principle in the space of all continuous maps which pull back the deRham cohomology class of $σ$ onto that of $ω$. In this paper we prove a foliated version of this result due to Gromov.
description: 10 pages
An Effective Model for Glueballs and Dual Superconductivity at Finite Temperature
Creators: name: Issifu, Adamu
name: Brito, Francisco A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The glueballs lead to gluon and QCD monopole condensations as by-products of color confinement. A color dielectric function $G(|ϕ|)$ coupled with Abelian gauge field is properly defined to mediate the glueball interactions at confining regime after {\it spontaneous symmetry breaking} (SSB) of the gauge symmetry. The particles are expected to form through quark gluon plasma (QGP) hadronization phase where the free quarks and gluons start clamping together to form hadrons. The QCD-like vacuum $\langleη^2m_η^2F^{μν}F_{μν}\rangle$, confining potential $V_c(r)$, string tension $σ$, penetration depth $λ$, superconducting and normal monopole densities ($n_s\,n_n$) and the effective masses ($m_η^{2}$ and $m_A^{2}$) will be investigated at finite temperature $T$. We also calculate the strong `running' coupling $α_s$ and subsequently the QCD $β$-function. {\it Dual superconducting} nature of the QCD vacuum will be investigated based on monopole condensation.
description: 21 pages, 11 figures
Super-tetrahedra and super-algebras
Creators: name: Sergeev, S. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this paper we give a detailed classification scheme for three-dimensional quantum zero curvature representation and tetrahedron equations. This scheme includes both even and odd parity components, the resulting algebras of observables are either Bose q-oscillators or Fermi oscillators. Three-dimensional $R$-matrices intertwining variously oriented tensor products of Bose and Fermi oscillators and satisfying tetrahedron and super-tetrahedron equations are derived. The 3d->2d compactification reproduces U_q(gl(n|m)) super-algebras and their representation theory.
description: LaTeX, 27 pages
Ute Frings-Merck: Zwischen Białystok und Berlin-Westend. Eine ethnografische Studie zu den Begegnungen von Polinnen und Deutschen in informellen Hausarbeitsverhältnissen
Creators: name: Blumberg-Stankiewicz, Katharina
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 3 (2020)
The Colours of Satellite Galaxies in Groups and Clusters
Creators: name: Font, Andreea S.
name: Bower, Richard G.
name: McCarthy, Ian G.
name: Benson, Andrew J.
name: Frenk, Carlos S.
name: Helly, John C.
name: Lacey, Cedric G.
name: Baugh, Carlton M.
name: Cole, Shaun
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Current models of galaxy formation predict satellite galaxies in groups and clusters that are redder than observed. We investigate the effect on the colours of satellite galaxies produced by the ram pressure stripping of their hot gaseous atmospheres as the satellites orbit within their parent halo. We incorporate a model of the stripping process based on detailed hydrodynamic simulations within the Durham semi-analytic model of galaxy formation. The simulations show that the environment in groups and clusters is less aggressive than previously assumed. The main uncertainty in the model is the treatment of gas expelled by supernovae. With reasonable assumptions for the stripping of this material, we find that satellite galaxies are able to retain a significant fraction of their hot gas for several Gigayears, thereby replenishing their reservoirs of cold, star forming gas and remaining blue for a relatively long period of time. A bimodal distribution of galaxy colours, similar to that observed in SDSS data, is established and the colours of the satellite galaxies are in good agreement with the data. In addition, our model naturally accounts for the observed dependence of satellite colours on environment, from small groups to high mass clusters.
description: Minor revisions to v1. (Note: The public version of the model is available at http://galaxy-catalogue.dur.ac.uk:8080/Millennium/)
Radiative transfer modeling of the observed line profiles in G31.41+0.31
Creators: name: Bhat, Bratati
name: Gorai, Prasanta
name: Mondal, Suman Kumar
name: Chakrabarti, Sandip K.
name: Das, Ankan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: An inverse P-Cygni profile of H13CO+ (1-0) in G31.41+0.31 was recently observed, which indicates the presence of an infalling gas envelope. Also, an outflow tracer, SiO, was observed. Here, exclusive radiative transfer modelings have been implemented to generate synthetic spectra of some key species (H13 CO+, HCN, SiO, NH3, CH3 CN, CH3OH, CH3SH, and CH3NCO) and extract the physical features to infer the excitation conditions of the surroundings where they observed. The gas envelope is assumed to be accreting in a spherically symmetric system towards the central hot core region. Our principal intention was to reproduce the observed line profiles toward G31.41+0.31 and extract various physical parameters. The LTE calculation with CASSIS and non-LTE analysis with the RATRAN radiative transfer codes are considered for the modeling purpose. The best-fitted line parameters are derived, which represents the prevailing physical condition of the gas envelope. Our results suggest that an infalling gas could explain the observed line profiles of all the species mentioned above except SiO. An additional outflow component is required to confer the SiO line profile. Additionally, an astrochemical model is implemented to explain the observed abundancests various species in this source.
description: 22 pages, 23 Figures, accepted for the publication in the Advances in Space Research
Ewa Palenga-Möllenbeck: Pendelmigration aus Oberschlesien. Lebensgeschichten in einer transnationalen Region Europas
Creators: name: Blumberg-Stankiewicz, Katharina
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2020

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 69 Nr. 3 (2020)
การประยุกต์ระบบสารสนเทศภูมิศาสตร์สร้างแบบจำลองเพื่อจัดสรรจุดจอดรถฉุกเฉินสำหรับบริการผู้สูงอายุ อำเภอชื่นชม จังหวัดมหาสารคาม
Creators: name: กันย์กิติมา ตาปะบุตร
name: ธัญญรัตน์ ไชยคราม
name: สาวิตรี รตโนภาส สุวรรณลี
name: จตุรงค์ สมอาจ
Publisher: name: กองบริหารการวิจัย
Year: 2562
Subjects: ระบบสารสนเทศภูมิศาสตร์
แบบจำลอง
ฉุกเฉิน
ผู้สูงอายุ
อำเภอชื่นชม
จังหวัดมหาสารคาม

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 27, 3, 381-394
Modular curves, the Tate-Shafarevich group and Gopakumar-Vafa invariants with discrete charges
Creators: name: Schimannek, Thorsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show that the stringy Kähler moduli space of a generic genus one curve of degree $N$, for $N\le 5$, is the $Γ_1(N)$ modular curve $X_1(N)$. This implies a correspondence between the cusps of the modular curves and certain large volume limits in the stringy Kähler moduli spaces of genus one fibered Calabi-Yau manifolds with $N$-sections. Using Higgs transitions in M-theory and F-theory as well as modular properties of the topological string partition function, we identify these large volume limits with elements of the Tate-Shafarevich group of the genus one fibration. Singular elements appear in the form of non-commutative resolutions with a torsional B-field at the singularity. The topological string amplitudes that arise at the various large volume limits are related by modular transformations. In particular, we find that the topological string partition function of a smooth genus one fibered Calabi-Yau threefold is transformed into that of a non-commutative resolution of the Jacobian by a Fricke involution. In the case of Calabi-Yau threefolds, we propose an expansion of the partition functions of a singular fibration and its non-commutative resolutions in terms of Gopakumar-Vafa invariants that are associated to BPS states with discrete charges. For genus one fibrations with 5-sections, this provides an enumerative interpretation for the partition functions that arise at certain irrational points of maximally unipotent monodromy.
description: 69+28 pages
Signal estimation in On/Off measurements including event-by-event variables
Creators: name: D'Amico, Giacomo
name: Terzić, Tomislav
name: Strišković, Jelena
name: Doro, Michele
name: Strzys, Marcel
name: van Scherpenberg, Juliane
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Signal estimation in the presence of background noise is a common problem in several scientific disciplines. An 'On/Off' measurement is performed when the background itself is not known, being estimated from a background control sample. The 'frequentist' and Bayesian approaches for signal estimation in On/Off measurements are reviewed and compared, focusing on the weakness of the former and on the advantages of the latter in correctly addressing the Poissonian nature of the problem. In this work, we devise a novel reconstruction method, dubbed BASiL (Bayesian Analysis including Single-event Likelihoods), for estimating the signal rate based on the Bayesian formalism. It uses information on event-by-event individual parameters and their distribution for the signal and background population. Events are thereby weighted according to their likelihood of being a signal or a background event and background suppression can be achieved without performing fixed fiducial cuts. Throughout the work, we maintain a general notation, that allows to apply the method generically, and provide a performance test using real data and simulations of observations with the MAGIC telescopes, as demonstration of the performance for Cherenkov telescopes. BASiL allows to estimate the signal more precisely, avoiding loss of exposure due to signal extraction cuts. We expect its applicability to be straightforward in similar cases.
description: Accepted in PRD
Deep learning reconstruction in ANTARES
Creators: name: García-Méndez, J.
name: Geißelbrecht, N.
name: Eberl, T.
name: Ardid, M.
name: Ardid, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: ANTARES is currently the largest undersea neutrino telescope, located in the Mediterranean Sea and taking data since 2007. It consists of a 3D array of photo sensors, instrumenting about 10Mt of seawater to detect Cherenkov light induced by secondary particles from neutrino interactions. The event reconstruction and background discrimination is challenging and machine-learning techniques are explored to improve the performance. In this contribution, two case studies using deep convolutional neural networks are presented. In the first one, this approach is used to improve the direction reconstruction of low-energy single-line events, for which the reconstruction of the azimuth angle of the incoming neutrino is particularly difficult. We observe a promising improvement in resolution over classical reconstruction techniques and expect to at least double our sensitivity in the low-energy range, important for dark matter searches. The second study employs deep learning to reconstruct the visible energy of neutrino interactions of all flavors and for the multi-line setup of the full detector.
description: 7 Pages, 4 Figures, 1 Table
แก๊สโครมาโทกราฟีที่มีการตรวจวัดแบบเฟลมไอออไนเซชันสำหรับการหาปริมาณอะคริลาไมด์ในมันฝรั่งทอด
Creators: name: อนุวัฒน์ รัศมีสมศรี
name: วราวุธ ติยพงศ์พัฒนา
Publisher: name: กองบริหารการวิจัย
Year: 2562
Subjects: แก๊สโครมาโทกราฟี
เฟรมไอออไนเซชัน
อะคริลาไมด์
แซนไทน์ดรอล
มันฝรั่งทอด

description: วารสารวิทยาศาสตร์และเทคโนโลยี, 27, 3, 395-406
Large closed-field corona of WX UMa evidenced from radio observations
Creators: name: Davis, I.
name: Vedantham, H. K.
name: Callingham, J. R.
name: Shimwell, T. W.
name: Vidotto, A. A.
name: Zarka, P.
name: Ray, T. P.
name: Drabent, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The space-weather conditions that result from stellar winds significantly impact the habitability of exoplanets. The conditions can be calculated from first principles if the necessary boundary conditions -- namely on the plasma density in the outer corona and the radial distance at which the plasma forces the closed magnetic field into an open geometry -- are specified. Low frequency radio observations ($ν\lesssim 200$ MHz) of plasma and cyclotron emission from stars probe these magneto-ionic conditions. Here we report the detection of low-frequency ($120-167\,{\rm MHz}$) radio emission associated with the dMe6 star WX UMa. If the emission originates in WX UMa's corona, we show that the closed field regions extends to at least $\approx 10$ stellar radii, that is about a factor of a few larger than the solar value, and possibly to $\gtrsim 20$ stellar radii. Our results suggest that the magnetic-field structure of M dwarfs is in between Sun-like and planet-like configurations, where compact over-dense coronal loops with X-ray emitting plasma co-exist with a large-scale magnetosphere with lower plasma density and closed magnetic geometry.
description: Accepted for publication in A&A, 10 pages, 7 figures, 2 tables
Wyniki pracy wywiadu naukowo-technicznego MSW PRL 1971–1989. [The Results of the Operations of the Scientific-Technical Intelligence of the Polish People’s Republic 1971–1989.] Hrsg. von Mirosław Sikora
Creators: name: Szumski, Jakub
Publisher: name: Journal of East Central European Studies
Year: 2020

description: Journal of East Central European Studies, Bd. 69 Nr. 3 (2020)
Fermi-Frenet coordinates for space-like curves
Creators: name: Underwood, Michael S.
name: Marzlin, Karl-Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We generalize Fermi coordinates, which correspond to an adapted set of coordinates describing the vicinity of an observer's worldline, to the worldsheet of an arbitrary spatial curve in a static spacetime. The spatial coordinate axes are fixed using a covariant Frenet triad so that the metric can be expressed using the curvature and torsion of the spatial curve. As an application of Fermi-Frenet coordinates, we show that they allow covariant inertial forces to be expressed in a simple and physically intuitive way.
description: 7 pages
Spin wave resonances in La_{0.7}Sr_{0.3}MnO_{3} films: measurement of spin wave stiffness and anisotropy field
Creators: name: Golosovsky, M.
name: Monod, P.
name: Muduli, P. K.
name: Budhani, R. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We studied magnetic field dependent microwave absorption in epitaxial La$_{0.7}$Sr$_{0.3}$MnO$_{3}$ films using an X-band Bruker ESR spectrometer. By analyzing angular and temperature dependence of the ferromagnetic and spin-wave resonances we determine spin-wave stiffness and anisotropy field. The spin-wave stiffness as found from the spectrum of the standing spin-wave resonances in thin films is in fair agreement with the results of inelastic neutron scattering studies on a single crystal of the same composition [Vasiliu-Doloc et al., J. Appl. Phys. \textbf{83}, 7343 (1998)].
description: 15 pages, 7 figures (now figure captions are included)
Suppressing quantum effects by optically driven nonequilibrium phonons
Creators: name: Ovadyahu, Z.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Optically-generated nonequilibrium phonon-distribution is used for exploring the origin of a nonlocal adiabatic response in an interacting Anderson insulator. Exposing the system to weak infrared radiation is shown to effectively suppress a long-range effect observed in field-effect experiments while producing little heating and barely changing the system conductance. These effects are shown to be consistent with the quantum nature of the effect and therefore are peculiar to disordered systems that are quantum-coherent.
Computing the Jones index of quadratic permutation endomorphisms of O_2
Creators: name: Conti, Roberto
name: Szymanski, Wojciech
Publisher: name: arXiv
Year: 2008
Subjects: subject: Operator Algebras (math.OA)
subject: Dynamical Systems (math.DS)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46L37; 46L05

description: We compute the index of the inclusions of type $III_{1/2}$ factors arising from endomorphisms of the Cuntz algebra ${\mathcal O}_2$ associated to the rank-two permutation matrices.
description: New title and some change in the presentation. J. Math. Phys., to appear
Superfluidity near phase separation in Bose-Fermi mixtures
Creators: name: Enss, Tilman
name: Zwerger, Wilhelm
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the transition to fermion pair superfluidity in a mixture of interacting bosonic and fermionic atoms. The fermion interaction induced by the bosons and the dynamical screening of the condensate phonons due to fermions are included using the nonperturbative Hamiltonian flow equations. We determine the bosonic spectrum near the transition towards phase separation and find that the superfluid transition temperature may be increased substantially due to phonon damping.
description: 7 pages and 3 figures, accepted version