cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Polarization dependent scattering in cavity optomagnonics
Creators: name: Haigh, J. A.
name: Nunnenkamp, A.
name: Ramsay, A. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The polarization dependence of magnon-photon scattering in an optical microcavity is reported. Due to the short cavity length, the mode-matching conditions found in previously explored, large path-length whispering gallery resonators are absent. Nonetheless, for cross-polarized scattering a strong and broadband suppression of one side-band is observed. This arises due to an interference between the Faraday and second-order Cotton-Mouton effects. To fully account for the suppression of the cross-polarized scattering, it is necessary to consider the squeezing of magnon modes intrinsic to thin-film geometry. A co-polarized scattering due to Cotton-Mouton effect is also observed. In addition, the magnon modes involved are identified as Damon-Eshbach surface modes, whose non-reciprocal propagation could be exploited in devices applications. This work experimentally demonstrates the important role of second order Cotton-Mouton effect for optomagnonic devices.
description: 5 pages, 3 figures
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Bläser, Markus
name: Monmege, Benjamin
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2021
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Mathematics of computing → Combinatorics
subject: Mathematics of computing → Graph theory
subject: Theory of computation → Formal languages and automata theory
subject: Theory of computation → Logic
subject: Theory of computation → Design and analysis of algorithms
subject: Theory of computation → Computational complexity and cryptography
subject: Theory of computation → Models of computation

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 187, 38th International Symposium on Theoretical Aspects of Computer Science (STACS 2021), pages 0:i-0:xvi
Searching for SNPs with cloud computing
Creators: name: Langmead, Ben
name: Schatz, Michael C
name: Lin, Jimmy
name: Pop, Mihai
name: Salzberg, Steven L
Publisher: name: Springer Nature
Year: 2009
Subjects: Single Nucleotide Polymorphism
Cloud Computing
Additional Data File
Wall Clock Time
Heterozygous SNPs

description: As DNA sequencing outpaces improvements in computer speed, there is a critical need to accelerate tasks like alignment and SNP calling. Crossbow is a cloud-computing software tool that combines the aligner Bowtie and the SNP caller SOAPsnp. Executing in parallel using Hadoop, Crossbow analyzes data comprising 38-fold coverage of the human genome in three hours using a 320-CPU cluster rented from a cloud computing service for about $85. Crossbow is available from http://bowtie-bio.sourceforge.net/crossbow/ .
Hyper Suprime-Cam Subaru Strategic Program: A Mass-Dependent Slope of the Galaxy Size-Mass Relation at $z<1$
Creators: name: Kawinwanichakij, Lalitwadee
name: Silverman, John D.
name: Ding, Xuheng
name: George, Angelo
name: Damjanov, Ivana
name: Sawicki, Marcin
name: Tanaka, Masayuki
name: Taranu, Dan S.
name: Birrer, Simon
name: Huang, Song
name: Li, Junyao
name: Onodera, Masato
name: Shibuya, Takatoshi
name: Yasuda, Naoki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the galaxy size-mass ($R_{e}-M_{\ast}$) distributions using a stellar-mass complete sample of $\sim1.5$ million galaxies, covering $\sim100$ deg$^2$, with $\log(M_{\ast}/M_{\odot})>10.2~(9.2)$ over the redshift range $0.2
description: Accepted for publication in ApJ. 45 pages, 17 figures
Vortex motion in thin films
Creators: name: Hally, David
Publisher: name: University of British Columbia
Year: 2010

description: The classical theory of rectilinear vortex motion has been generalized to include vortices in thin fluids of varying depth on curved surfaces. The equations of motion are examined to lowest order in a perturbation expansion in which the depth of fluid is considered small in comparison with the principal radii of curvature of the surface. Existence of a generalized vortex streamfunction is proved and used to generate conservation laws. A number of simple vortex systems are described. In particular, criteria for the stability of rings of vortices on surfaces of revolution are found. In contradistinction to the result of von Karman, double rings (vortex streets) in both staggered and symmetric configurations may be stable. The effects of finite core size are examined. Departures from radial symmetry in core vorticity distributions are shown to introduce small wobbles in the vortex motion. The case of an elliptical core is treated in detail. Applications of the theory to atmospheric cyclones and superfluid vortices are discussed.
Dynamical attractors in contracting spacetimes dominated by kinetically coupled scalar fields
Creators: name: Ijjas, Anna
name: Pretorius, Frans
name: Steinhardt, Paul J.
name: Garfinkle, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present non-perturbative numerical relativity simulations of slowly contracting spacetimes in which the scalar field driving slow contraction is coupled to a second scalar field through an exponential non-linear sigma model-type kinetic interaction. These models are important because they can generate a nearly scale-invariant spectrum of super-Hubble density fluctuations fully consistent with cosmic microwave background observations. We show that the non-linear evolution rapidly approaches a homogeneous, isotropic and flat Friedmann- Robertson-Walker (FRW) geometry for a wide range of inhomogeneous and anisotropic initial conditions. Ultimately, we find, the kinetic coupling causes the evolution to deflect away from flat FRW and towards a novel Kasner-like stationary point, but in general this occurs on time scales that are too long to be observationally relevant.
description: 25 pages, 5 figures
Molecular characterization of the Great Lakes viral hemorrhagic septicemia virus (VHSV) isolate from USA
Creators: name: Ammayappan, Arun
name: Vakharia, Vikram N
Publisher: name: Springer Nature
Year: 2009
Subjects: Round Goby
Great Lake
Infectious Hematopoietic Necrosis Virus
Viral Hemorrhagic Septicemia Virus
Gene Start

description: Viral hemorrhagic septicemia virus (VHSV) is a highly contagious viral disease of fresh and saltwater fish worldwide. VHSV caused several large scale fish kills in the Great Lakes area and has been found in 28 different host species. The emergence of VHS in the Great Lakes began with the isolation of VHSV from a diseased muskellunge (Esox masquinongy) caught from Lake St. Clair in 2003. VHSV is a member of the genus Novirhabdovirus, within the family Rhabdoviridae. It has a linear single-stranded, negative-sense RNA genome of approximately 11 kbp, with six genes. VHSV replicates in the cytoplasm and produces six monocistronic mRNAs. The gene order of VHSV is 3'-N-P-M-G-NV-L-5'. This study describes molecular characterization of the Great Lakes VHSV strain (MI03GL), and its phylogenetic relationships with selected European and North American isolates. The complete genomic sequences of VHSV-MI03GL strain was determined from cloned cDNA of six overlapping fragments, obtained by RT-PCR amplification of genomic RNA. The complete genome sequence of MI03GL comprises 11,184 nucleotides (GenBank GQ385941) with the gene order of 3'-N-P-M-G-NV-L-5'. These genes are separated by conserved gene junctions, with di-nucleotide gene spacers. The first 4 nucleotides at the termini of the VHSV genome are complementary and identical to other novirhadoviruses genomic termini. Sequence homology and phylogenetic analysis show that the Great Lakes virus is closely related to the Japanese strains JF00Ehi1 (96%) and KRRV9822 (95%). Among other novirhabdoviruses, VHSV shares highest sequence homology (62%) with snakehead rhabdovirus. Phylogenetic tree obtained by comparing 48 glycoprotein gene sequences of different VHSV strains demonstrate that the Great Lakes VHSV is closely related to the North American and Japanese genotype IVa, but forms a distinct genotype IVb, which is clearly different from the three European genotypes. Molecular characterization of the Great Lakes isolate will be helpful in studying the pathogenesis of VHSV using a reverse genetics approach and developing efficient control strategies.
A Temporary Haven: Jewish World War II Refugee Scholars at the New York Public Library, 1933–1945
Creators: name: Intrator, Miriam
Publisher: name: Austrian Journal of Historical Studies
Year: 2010

description: The Humanities Research Library of the New York Public Library (NYPL) served as temporary employer and safe intellectual haven for a number of European refugee scholars fleeing Nazism. The closed-stack public library, dedicated to research and the development and documentation of comprehensive scholarly collections, more closely resembled European academic and library systems than did most, more informal, American colleges and universities. As such, NYPL, in conjunction with the Emergency Committee in Aid of Displaced Foreign Scholars, provided a welcome point of transition and life-saving and sustaining work and salaries for the newly arrived refugees who were able to secure some continuity with their pre-war intellectual lives within its walls.
description: Austrian Journal of Historical Studies, Bd. 21 Nr. 3 (2010): Vertriebene Wissenschaft
NGC 5746: formation history of a massive disc-dominated galaxy
Creators: name: Martig, Marie
name: Pinna, Francesca
name: Falcón-Barroso, Jesús
name: Gadotti, Dimitri
name: Husemann, Bernd
name: Minchev, Ivan
name: Neumann, Justus
name: Ruiz-Lara, Tomás
name: van de Ven, Glenn
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The existence of massive galaxies lacking a classical bulge has often been proposed as a challenge to $Λ$CDM. However, recent simulations propose that a fraction of massive disc galaxies might have had very quiescent merger histories, and also that mergers do not necessarily build classical bulges. We test these ideas with deep MUSE observations of NGC 5746, a massive ($\sim 10^{11}$ M$_\odot$) edge-on disc galaxy with no classical bulge. We analyse its stellar kinematics and stellar populations, and infer that a massive and extended disc formed very early: 80% of the galaxy's stellar mass formed more than 10 Gyr ago. Most of the thick disc and the bar formed during that early phase. The bar drove gas towards the center and triggered the formation of the nuclear disc followed by the growth of a boxy/peanut-shaped bulge. Around $\sim$ 8 Gyr ago, a $\sim$1:10 merger happened, possibly on a low-inclination orbit. The satellite did not cause significant vertical heating, did not contribute to the growth of a classical bulge, and did not destroy the bar and the nuclear disc. It was however an important event for the galaxy: by depositing its stars throughout the whole galaxy it contributed $\sim 30$% of accreted stars to the thick disc. NGC 5746 thus did not completely escape mergers, but the only relatively recent significant merger did not damage the galaxy and did not create a classical bulge. Future observations will reveal if this is representative of the formation histories of massive disc galaxies.
description: Accepted for publication in MNRAS. 22 pages, 21 figures (including appendix)
Detection of deuterated methylcyanoacetylene, CH$_2$DC$_3$N, in TMC-1
Creators: name: Cabezas, C.
name: Roueff, E.
name: Tercero, B.
name: Agúndez, M.
name: Marcelino, N.
name: de Vicente, P.
name: Cernicharo, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the first detection in space of the single deuterated isotopologue of methylcyanoacetylene, CH$_2$DC$_3$N. A total of fifteen rotational transitions, with $J$ = 8-12 and $K_a$ = 0 and 1, were identified for this species in TMC-1 in the 31.0-50.4 GHz range using the Yebes 40m radio telescope. The observed frequencies were used to derive for the first time the spectroscopic parameters of this deuterated isotopologue. We derive a column density of $(8.0\pm 0.4) \times 10^{10}$ cm$^{-2}$. The abundance ratio between CH$_3$C$_3$N and CH$_2$DC$_3$N is $\sim$22. We also theoretically computed the principal spectroscopic constants of $^{13}$C isotopologues of CH$_3$C$_3$N and CH$_3$C$_4$H and those of the deuterated isotopologues of CH$_3$C$_4$H for which we could expect a similar degree of deuteration enhancement. However, we have not detected either CH$_2$DC$_4$H nor CH$_3$C$_4$D nor any $^{13}$C isotopologue. The different observed deuterium ratios in TMC-1 are reasonably accounted for by a gas phase chemical model where the low temperature conditions favor deuteron transfer through reactions with H$_2$D$^+$.
description: Accepted for publication in A&A Letters
Perturbative and non-perturbative studies with the delta function potential
Creators: name: Bera, Nabakumar
name: Bhattacharyya, Kamal
name: Bhattacharjee, Jayanta K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that the delta function potential can be exploited along with perturbation theory to yield the result of certain infinite series. The idea is that any exactly soluble potential if coupled with a delta function potential remains exactly soluble. We use the strength of the delta function as an expansion parameter and express the second-order energy shift as an infinite sum in perturbation theory. The analytical solution is used to determine the second-order energy shift and hence the sum of an infinite series. By an appropriate choice of the unperturbed system, we can show the importance of the continuum in the energy shift of bound states.
description: 19 pages, 2 tables
Mechanisms for transient localization in a diatomic nonlinear chain
Creators: name: Lepri, Stefano
name: Piazza, Francesco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate transient nonlinear localization, namely the self-excitation of energy bursts in an atomic lattice at finite temperature. As a basic model we consider the diatomic Lennard-Jones chain. Numerical simulations suggest that the effect originates from two different mechanisms. One is the thermal excitation of genuine discrete breathers with frequency in the phonon gap. The second is an effect of nonlinear coupling of fast, lighter particles with slow vibrations of the heavier ones. The quadratic term of the force generate an effective potential that can lead to transient grow of local energy on time scales the can be relatively long for small mass ratios. This heuristics is supported by a multiple-scale approximation based on the natural time-scale separation. For illustration, we consider a simplified single-particle model that allows for some insight of the localization dynamics.
description: Accepted for publication in Communication in Nonlinear Science and Numerical Simulations
GW Ori: circumtriple rings and planets
Creators: name: Smallwood, Jeremy L.
name: Nealon, Rebecca
name: Chen, Cheng
name: Martin, Rebecca G.
name: Bi, Jiaqing
name: Dong, Ruobing
name: Pinte, Christophe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: GW Ori is a hierarchical triple star system with a misaligned circumtriple protoplanetary disc. Recent ALMA observations have identified three dust rings with a prominent gap at $100\, \rm au$ and misalignments between each of the rings. A break in the gas disc may be driven either by the torque from the triple star system or a planet that is massive enough to carve a gap in the disc. Once the disc is broken, the rings nodally precess on different timescales and become misaligned. We investigate the origins of the dust rings by means of $N$-body integrations and 3-dimensional hydrodynamic simulations. We find that for observationally-motivated parameters of protoplanetary discs, the disc does not break due to the torque from the star system. We suggest that the presence of a massive planet (or planets) in the disc separates the inner and outer disc. We conclude that the disc breaking in GW Ori is likely caused by undetected planets -- the first planet(s) in a circumtriple orbit.
description: 17 pages, 16 figures, accepted to MNRAS
Eigenvalue asymptotics of the even-dimensional exterior Landau-Neumann Hamiltonian
Creators: name: Persson, Mikael
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the Schroedinger operator with a constant magnetic field in the exterior of a compact domain in $\mathbb{R}^{2d}$, $d\geq 1$. The spectrum of this operator consists of clusters of eigenvalues around the Landau levels. We give asymptotic formulas for the rate of accumulation of eigenvalues in these clusters. When the compact is a Reinhart domain we are able to show a more precise asymptotic formula.
Statistical Supplement to Household Food Security in the United States in 2021
Creators: name: Coleman-Jensen, Alisha
name: Rabbitt, Matthew P
name: Gregory, Christian A
name: Singh, Anita
name: Coleman-Jensen, Alisha
name: Rabbitt, Matthew P
name: Gregory, Christian A
name: Singh, Anita
Publisher: name: Unknown
Year: 2022
Subjects: subject: Food Security and Poverty
subject: Food security
subject: food insecurity
subject: food spending
subject: food pantry

description: This supplement provides statistics that complement those in Household Food Security in the United States in 2021. That research report provides the primary national statistics on household food security, food spending, and use of Federal food and nutrition assistance programs by food-insecure households. Additional statistics here cover component items of the household food security measure, the frequency of occurrence of food-insecure conditions, and selected statistics on household food security, food spending, and use of Federal and community food and nutrition assistance programs.
Photoabsorption off nuclei with self consistent vertex corrections
Creators: name: Riek, F.
name: Lutz, M. F. M.
name: Korpa, C. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study photoproduction off nuclei based on a self consistent and covariant many body approach for the pion and isobar propagation in infinite nuclear matter. For the first time the t-channel exchange of an in-medium pion is evaluated in the presence of vertex correction effects consistently. In particular the interference pattern with the s-channel in-medium nucleon and isobar exchange contribution is considered. Electromagnetic gauge invariance is kept as a consequence of various Ward identities obeyed by the computation. Adjusting the set of Migdal parameters to the data set we predict an attractive mass shift for the isobar of about 50 MeV at nuclear saturation density.
description: 10 pages, 6 figures
75As NMR study of the ternary iron arsenide BaFe2As2
Creators: name: Fukazawa, H.
name: Hirayama, K.
name: Kondo, K.
name: Yamazaki, T.
name: Kohori, Y.
name: Takeshita, N.
name: Miyazawa, K.
name: Kito, H.
name: Eisaki, H.
name: Iyo, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report 75As-NMR measurements of the ternary iron arsenide BaFe2As2. 75As-NMR spectra clearly revealed that magnetic transition occurs at around 131 K in our samples, which corresponds to the emergence of spin density wave. Temperature dependence of the internal magnetic field suggests that the transition is likely of the first order. The critical-slowing-down phenomenon in the spin-lattice relaxation rate 1/T1 is not pronounced in this material.
description: To be published in J. Phys. Soc. Jpn
Scalable Surface Area Characterization by Electrokinetic Analysis of Complex Anion Adsorption
Creators: name: Hanaor, Dorian A. H.
name: Ghadiri, Maliheh
name: Chrzanowski, Wojciech
name: Gan, Yixiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: By means of the in situ electrokinetic assessment of aqueous particles in conjunction with the addition of anionic adsorbates, we develop and examine a new approach to the scalable characterization of the specific accessible surface area of particles in water. For alumina powders of differing morphology in mildly acidic aqueous suspensions, the effective surface charge was modified by carboxylate anion adsorption through the incremental addition of oxalic and citric acids. The observed zeta potential variation as a function of the proportional reagent additive was found to exhibit inverse hyperbolic sine-type behavior predicted to arise from monolayer adsorption following the Grahame-Langmuir model. Through parameter optimization by inverse problem solving, the zeta potential shift with relative adsorbate addition revealed a nearly linear correlation of a defined surface-area-dependent parameter with the conventionally measured surface area values of the powders, demonstrating that the proposed analytical framework is applicable for the in situ surface area characterization of aqueous particulate matter. The investigated methods have advantages over some conventional surface analysis techniques owing to their direct applicability in aqueous environments at ambient temperature and the ability to modify analysis scales by variation of the adsorption cross section.
The Galaxy Replacement Technique (GRT): a New Approach to Study Tidal Stripping and Formation of Intracluster Light in a Cosmological Context
Creators: name: Chun, Kyungwon
name: Shin, Jihye
name: Smith, Rory
name: Ko, Jongwan
name: Yoo, Jaewon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We introduce the Galaxy Replacement Technique (GRT) that allows us to model tidal stripping of galaxies with very high-mass (m$_{\rm{star}}=5.4\times10^4$~M$_\odot$/h) and high-spatial resolution (10 pc/h), in a fully cosmological context, using an efficient and fast technique. The technique works by replacing multiple low-resolution DM halos in the base cosmological simulation with high-resolution models, including a DM halo and stellar disk. We apply the method to follow the hierarchical build-up of a cluster since redshift $\sim8$ to now, through the hierarchical accretion of galaxies, individually or in substructures such as galaxy groups. We find we can successfully reproduce the observed total stellar masses of observed clusters since redshift $\sim$1. The high resolution allows us to accurately resolve the tidal stripping process and well describe the formation of ultra-low surface brightness features in the cluster ($μ_{V}<32$ mag arcsec$^{-2}$) such as the intracluster light (ICL), shells and tidal streams. We measure the evolution of the fraction of light in the ICL and brightest cluster galaxy (BCG) using several different methods. While their broad response to the cluster mass growth history is similar, the methods show systematic differences, meaning we must be careful when comparing studies that use distinct methods. The GRT represents a powerful new tool for studying tidal effects on galaxies and exploring the formation channels of the ICL in a fully cosmological context and with large samples of simulated groups and clusters.
description: 18 pages, 9 figures. Accepted for publication in The Astrophysical Journal, October 3rd, 2021
ЭПИДЕМИЛОГИЯ РАСПРОСТРАНЕНИЯ ПАРАЗИТОВ
Creators: name: Чудиновских С.А.
name: Мирзоева Р. К.
Publisher: name: Здоровье нации в XXI веке
Year: 2021
Subjects: гельминты
паразитарные инфекции
профилактика паразитозов в России
борьба с паразитозом.

description: В данной статье представлен литературный и статистический обзор о различных паразитарных инфекциях в мире и России. Особое внимание уделяется профилактике гельминтозов, даны конкретные рекомендации по профилактированию паразитозов среди населения России.
Intermediate energy pion production
Creators: name: Mathie, Edward Lawrence
Publisher: name: University of British Columbia
Year: 2010

description: An experimental study of intermediate energy pion production has been conducted at TRIUMF with polarized protons. Angular distributions of differential cross sections and polarization analysing powers are presented for (p/π) reactions on ¹H with 305 to 425 MeV protons, on ²H with 305 to 400 MeV protons, and on ⁹Be and ¹²C with 200 MeV protons. In addition the inclusive ¹²C(p,π⁺)X reaction has been studied for protons with 330 to 425 MeV energy. Theoretical model calculations of the ¹H (p,π⁺)²H reaction involve relatively few transition amplitudes in the 'threshold' kinematic region (where only s-and p-wave pions contribute). Prior to this experiment the threshold regicn was thought to extend to 140 MeV above threshold (289 MeV). The new data show that the threshold description is only valid up to 320 MeV. A second important observation cf this experiment is the similarity of the analysing power for ¹H (p,π⁺) pn to that for ¹H (p,π⁺)²H for pions with center of mass energies 10 to 20 MeV below the two body reaction. The similarity is also observed in the ²H (p,π⁺) X reaction, where the inclusive reaction analysing powers were slightly more positive than for ²H (p,π⁺)³H. In the 200 MeV nuclear (p,π) reactions studied, the shape of the angular distributions of cross section agree well with earlier 185 MeV results. The angular distributions of analysing power in the exclusive nuclear (p,π) reactions, never previously measured, show a remarkably large magnitude in the forward direction and enable a thorough testing of current theoretical models. These results are an indication of the explicit role of the two nucleon mechanism in nuclear pion production. Finally the results for the inclusive reaction, ¹²C (p,π⁺)X have been compared with a semiclassical model. The model results are reasonable, however at these low energies uncertainties in the input NN￫NNπ distributions lead to an underestimate of the cross section for low energy pions.
German-Speaking Émigré Neuroscientists in North America after 1933: Critical Reflections on Emigration-Induced Scientific Change
Creators: name: Stahnisch, Frank W.
Publisher: name: Austrian Journal of Historical Studies
Year: 2010

description: This paper endeavors to document and analyze the impact of forced-migration of German-speaking neuroscientists to Canada and the United States during the National-Socialist era, while specifically focusing on concepts and scientific applications of interdisciplinarity in 20th century neuroscientific research. The objectives of this paper are firstly, to describe the general research topic; secondly, to introduce a new model for the historiography and social studies of forced-migration in the neurosciences and thirdly, to explore, in a preliminary way, the impact that particular Central- European émigré-researchers had on this emerging postwar biomedical field in North America.
description: Austrian Journal of Historical Studies, Bd. 21 Nr. 3 (2010): Vertriebene Wissenschaft
High tensile strength and thermal conductivity in BeO monolayer: A first-principles study
Creators: name: Mortazavi, Bohayra
name: Shojaei, Fazel
name: Rabczuk, Timon
name: Zhuang, Xiaoying
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In a latest experimental advance, graphene-like and insulating BeO monolayer was successfully grown over silver surface by molecular beam epitaxy (ACS Nano 15(2021), 2497). Inspired by this accomplishment, in this work we conduct first-principles based simulations to explore the electronic, mechanical properties and thermal conductivity of graphene-like BeO, MgO and CaO monolayers. The considered nanosheets are found to show desirable thermal and dynamical stability. BeO monolayer is found to show remarkably high elastic modulus and tensile strength of 408 and 53.3 GPa, respectively. The electronic band gap of BeO, MgO and CaO monolayers are predicted to be 6.72, 4.79, and 3.80 eV, respectively, using the HSE06 functional. On the basis of iterative solutions of the Boltzmann transport equation, the room temperature lattice thermal conductivity of BeO, MgO and CaO monolayers are predicted to be 385, 64 and 15 W/mK, respectively. Our results reveal substantial decline in the electronic band gap, mechanical strength and thermal conductivity by increasing the weight of metal atoms. This work highlights outstandingly high thermal conductivity, carrier mobility and mechanical strength of insulating BeO nanosheets and suggest them as promising candidates to design strong and insulating components with high thermal conductivities.
The effects of twisted magnetic field on coronal loops oscillations and dissipation
Creators: name: Karami, K.
name: Barin, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The standing MHD modes in a zero-$β$ cylindrical magnetic flux tube modelled as a straight core surrounded by a magnetically twisted annulus, both embedded in a straight ambient external field is considered. The dispersion relation for the fast MHD waves is derived and solved numerically to obtain the frequencies of both the kink ($m=1$), and fluting ($m=2,3$) waves. Damping rates due to both viscous and resistive dissipations in presence of the twisted magnetic field is derived and solved numerically for both the kink and fluting waves.
description: 13 pages, 11 figures
Emissaries of Nazism
Creators: name: Harvey, Elizabeth
Publisher: name: Austrian Journal of Historical Studies
Year: 2020

description: In the 1930s, National Socialist students travelled from Germany to south-eastern Europe on study visits and ‘Land Service’ assignments organized by the Deutsche Studentenschaft with the aim of reaching and influencing German-speaking minority communities in Yugoslavia and Romania. Inspired by the idea of a single German Volkstum transcending state borders, the students saw themselves as emissaries of Nazism, promoting Nazi racial doctrines and techniques of social and political organization, and covertly cooperating with the ‘renewal movements’ (Erneuerungsbewegungen) of the 1930s that sought to align Romanian Germans and Yugoslav Germans more closely with the Reich. The article examines a range of trips by Reich German students to Yugoslavia and Romania between 1933 and 1939 while focusing particularly on the reports by a group of women students who travelled to Romania in 1935. It asks how far these ‘missions’ to ‘Germandom abroad’ provided additional momentum for the Nazi student movement in the Reich and explores how male and female students positioned themselves with dis- tinct roles in a ‘struggle’ that continued outside the borders of the Reich after the consolidation of National Socialist power in Germany. It shows how the students on their travels to south-eastern Europe looked for a ‘homeland away from home’ but were also gratified by discovering elements of the ‘exotic’ and ‘remote’ in the locations they visited. Finally, it asks how far travel and mobility functioned for men and for women as a commodity associated with power and influence, to be deployed in building their own careers, but also to be harnessed to the cause of widening the horizons of ‘Germans abroad’.
description: Austrian Journal of Historical Studies, Bd. 22 Nr. 1 (2011): Politisch Reisen
Pion-nucleus size resonances
Creators: name: Pai, David Mieng
Publisher: name: University of British Columbia
Year: 2010

description: The possibility and properties of pion-nucleus optical potential resonances (or size resonances) are investigated. There are two parts to the thesis. The first is mainly preparatory work. Resonance phenomena in reactions are examined in general, with emphasis on relating the nature of the interaction to the existence of various types of resonances- ranging from compound nucleus resonances to size resonances. It is argued that of these only size resonances may exist for the pion-nucleus system due to strong pion annihilation. The pion-nucleus interaction in the form of an optical potential is reviewed from basics. Many approximations are examined. In particular, the optical theorem which governs two-body scattering in a many-body environment and its usage for examining the impulse approximation are pointed out. The Kisslinger potential is examined from the continuity equation point of view and. two pathologies are uncovered. First, the potential fails to be absorptive everywhere; and second, it becomes singular when the potential exceeds a certain strength.The second pathology, after being remedied, still gives amusing results; for example, an infinite number of bound states, a kink in the wave function, negative elastic width,...etc. Many of these anomalous results can be understood in terms of the pion having a negative effective mass arising from the real part of the optical potential. The second part deals with size resonances specifically. The $-matrix formalism is presented with all necessary modifications for the Kisslinger potential. The age-old controversy on the choice of boundary radius is readdressed to sort out the resonance part of potential scattering properly. This formalism series two complementary purposes. It enables one to calculate size resonance parameters from a potential, as well as to judge whether a calculated resonance is narrow enough for observation. π⁻²⁰⁸Pb results show resonances of various partial wave and pion charge can occur in the region of 10 to 40 HeV. The corresponding elastic widths and absorption widths are in the order of 30 to 40 HeV. Lighter nuclei (⁵⁸Ni) show even larger elastic width. Without further analysis these widths are too large to produce any apparent effect even in the resonant part of the scattering amplitude. However, in a new method of phase shift analyses- which consists essentially of extracting the R-function, the broad resonances are shown to be distinct and their parameters can be extracted. This method has widespread possible application for analysing resonances in general.
„daß seine Mannschaft gantz unvollkommen sey“
Creators: name: Ründal, Erik O.
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 2011

description: Many ways of how we think and live today developed in the early modern period. If we look at masculinity and impotence for example, we see a broad societal discourse, which includes for the first time lower classes. Additionally, independent scientific interest emerges that over time takes on more and more rational traits of medicine and civil law. Next to the files from the marriage courts these contemporary works belong to the most important sources in an inquiry into impotence in the early modern period. An over­ view on aspects, terms, and sources on impotence in world history is follo­wed by the first quantitative analysis of early modern sources in scientific research. The practice of separation and the medical practice are delved into with examples from the 17th and 18th centuries. Thus, it can be shown that everyday life with and scientific disputes on the problem of impotence deter­ mined each other and also how this worked; not only scholars, theologians, and judges negotiated among themselves what the term impotence held for, but also the population took part in the discussions in different ways.
description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 22 Nr. 2 (2011): Gesundheit und Geschlecht
Quantum chaotic system as a model of decohering environment
Creators: name: Bandyopadhyay, Jayendra N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Chaotic Dynamics (nlin.CD)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: As a model of decohering environment, we show that quantum chaotic system behave equivalently as many-body system. An approximate formula for the time evolution of the reduced density matrix of a system interacting with a quantum chaotic environment is derived. This theoretical formulation is substantiated by the numerical study of decoherence of two qubits interacting with a quantum chaotic environment modeled by a chaotic kicked top. Like the many-body model of environment, the quantum chaotic system is efficient decoherer, and it can generate entanglement between the two qubits which have no direct interaction.
description: 5 pages, 3 figures. Published version!
COVID-19 Working Paper: Farm Sector Financial Ratios: Pre-COVID Forecasts and Pandemic Performance for 2020
Creators: name: Giri, Anil K
name: Litkowski, Carrie
name: Subedi, Dipak
name: McDonald, Tia
name: Giri, Anil K
name: Litkowski, Carrie
name: Subedi, Dipak
name: McDonald, Tia
Publisher: name: Unknown
Year: 2022
Subjects: subject: Health Economics and Policy
subject: Productivity Analysis
subject: Coronavirus
subject: Farm Financial Ratios
subject: Solvency Ratios
subject: Efficiency Ratios

description: The sound financial health of the U.S. farm sector is vital because of its importance to food security and for the wellbeing of U.S. farm households and rural communities. Analyzing key financial ratios is one way to examine the financial health of the farm sector. This study compares 2020 values for farm sector financial ratios before and after the onset of the Coronavirus (COVID-19) pandemic. Forecasts from the February 5, 2020, release of the USDA Economic Research Service’s Farm Income and Wealth Statistics data product represent the prepandemic (before) forecasts. Those forecast values are compared to the data released on February 4, 2022, which represent the realized values for 2020 and include pandemic impacts on commodity demand and the policy response to the economic shock. Solvency ratios (which are indicators of the sector's ability to repay financial liabilities via the sale of assets) worsened in 2020 relative to prepandemic expectations. Efficiency ratios (which evaluate the conversion of assets into production and revenue) and liquidity ratios (which are indicators of the availability of cash to cover debt payments) showed mixed outcomes for the realized results in 2020 relative to the pre-pandemic forecasts. Four profitability ratios were stronger in 2020 relative to pre-pandemic expectations. All solvency, liquidity, and profitability ratios plus 2 out of 5 efficiency ratios for 2020 were weaker than their respective average ratios obtained from 2000 to 2019 data.
Integrating Machine Learning with Financial Data Lakes for Predictive Analytics
Creators: name: Abhilash Katari*
name: Karthik Allam
Publisher: name: Zenodo
Year: 2024
Subjects: Financial data lakes, machine learning, predictive analytics, data integration, financial sector, data management, data preprocessing, data governance, risk management, fraud detection, scalable architecture, financial institutions, case studies, data quality, strategic planning, machine learning models, financial analytics, data security, future trends in finance, tools and technologies, implementation.

description: Abstract: In today's data-driven world, financial institutions are increasingly relying on predictive analytics to stay competitive and make informed decisions. One powerful tool in this endeavor is the data lake, a centralized repository that allows organizations to store vast amounts of raw data in its native format. This abstract explores the integration of machine learning (ML) with financial data lakes to enhance predictive analytics capabilities. By leveraging data lakes, financial organizations can efficiently manage and process large datasets from various sources, enabling more accurate and timely predictions. The integration of ML with data lakes offers several advantages, including improved data accessibility, scalability, and flexibility. Financial institutions can use ML algorithms to analyze historical data, identify patterns, and predict future trends, helping them make better investment decisions, detect fraudulent activities, and optimize operations. This approach not only enhances the accuracy of predictions but also accelerates the analytics process, allowing organizations to respond swiftly to market changes. Furthermore, this integration supports advanced analytics techniques such as deep learning and natural language processing, providing deeper insights into customer behavior and market dynamics. As financial data continues to grow in volume and complexity, the synergy between data lakes and ML will play a crucial role in driving innovation and maintaining a competitive edge in the financial sector.
Supplement to Adjusting to Higher Labor Costs in Selected U.S. Fresh Fruit and Vegetable Industries: Case Studies
Creators: name: Calvin, Linda
name: Martin, Philip
name: Simnitt, Skyler
name: Calvin, Linda
name: Martin, Philip
name: Simnitt, Skyler
Publisher: name: Unknown
Year: 2022
Subjects: subject: Labor and Human Capital
subject: Automation
subject: farm labor
subject: fruit
subject: guest workers

description: This supplement includes several case studies to reinforce the more general discussion contained in Adjusting to Higher Labor Costs in Selected U.S. Fresh Fruit and Vegetable Industries (EIB-235). Farm labor costs increased from 2010-19 for several reasons, including fewer newly-arrived unauthorized workers, rising State minimum wages, and new requirements to pay overtime wages to some farm workers.The included case studies provide information on production, trade patterns, and current labor use and alternatives to hand labor in four fresh fruit—apples, grapes, blueberries, and strawberries—and four fresh vegetable and melon commodities—lettuce, melons, and tomatoes.
Männergesundheit als Forschungsthema der Sozial- und Kulturwissenschaften
Creators: name: Dinges, Martin
name: Weigl, Andreas
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 2011

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 22 Nr. 2 (2011): Gesundheit und Geschlecht
Appréciation critique de l'action des organisations régionales africaines
Creators: name: GUEMIMI, Ilham
name: HANJIR, JAOUAD
Publisher: name: Centre Méditerranéen d'études et de Recherches    والأبحاث المغرب المركز المتوسطيي للدراسات
Year: 2024

description: The importance given today to the regionalization of crisis and conflict management is growing in the international arena, to the point of creating regional organizations that guarantee the resolution of crises and conflicts in accordance with international standards. The consequence is that the rapid evolution of mores and mentalities on the African continent calls for urgent responses for crisis management and conflict resolution. Therefore, their demands call for adequate responses, otherwise we will see the multiplication of internal crises that are the real challenge facing Africa today. Indeed, political instability, insecurity and the many wars that tear Africa apart are all evils that African countries must overcome. So far, relations between African states are marked by mistrust. This climate does not make it easy to find the third person often needed to help the antagonists resolve their differences. The simultaneous crises affecting Africa undermine fundamental principles of the AU and the international community as a whole. These include the principles of respect for national unity and territorial integrity of Member States; the rejection of terrorism and transnational organized crime, as well as unconstitutional changes of government; and respect for human rights. These principles are of vital importance for the maintenance of peace, security and stability on the continent, as well as for its development. Any attempt to undermine them with serious consequences and as such constitutes a threat to international peace and security.
The motility of normal and cancer cells in response to the combined influence of substrate rigidity and anisotropic microstructure
Creators: name: Tzvetkova-Chevolleau, Tzvetelina
name: Stéphanou, Angélique
name: Fuard, David
name: Ohayon, Jacques
name: Schiavone, Patrick
name: Tracqui, Philippe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Cell Behavior (q-bio.CB)
subject: FOS: Biological sciences

description: Cell adhesion and migration are strongly influenced by extracellular matrix (ECM) architecture and rigidity, but little is known about the concomitant influence of such environmental signals to cell responses, especially when considering cells of similar origin and morphology, but exhibiting a normal or cancerous phenotype. Using micropatterned polydimethylsiloxane substrates (PDMS) with tuneable stiffness (500kPa, 750kPa, 2000kPa) and topography (lines, pillars or unpatterned), we systematically analyse the differential response of normal (3T3) and cancer (SaI/N) fibroblastic cells. Our results demonstrate that both cells exhibit differential morphology and motility responses to changes in substrate rigidiy and microtopography. 3T3 polarization and spreading are influenced by substrate microtopography and rigidity. The cells exhibit a persistent type of migration, which depends on the substrate anisotropy. In contrast, the dynamic of SaI/N spreading is strongly modified by the substrate topography but not by substrate rigidity. SaI/N morphology and migration seem to escape from extracellular cues: the cells exhibit uncorrelated migration trajectories and a large dispersion of their migration speed, which increases with substrate rigidity.
Linear Magnetoresistance and Type-I Superconductivity in $β$-IrSn$_4$
Creators: name: Ahmad, Nazir
name: Shimada, Shunsuke
name: Hasegawa, Takumi
name: Suzuki, Hiroto
name: Afzal, Md Asif
name: Nakamura, Naoki
name: Higashinaka, Ryuji
name: Matsuda, Tatsuma D.
name: Aoki, Yuji
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Layered material $β$-IrSn$_4$ ($I4_1/acd$, $D^{20}_{4h}$, #142), whose electron bands have symmetry-enforced Dirac points, was investigated using high-quality single crystals. It exhibits a pronounced linear field-dependence of magnetoresistance (LMR), which cannot be explained by currently existing models. Structures in the field-angle dependence of magnetoresistance and Hall resistivity are attributable to the Fermi surface topology; the presence of open orbits is inferred. At the superconducting (SC) transition, the specific-heat jump exhibits a significant increase in applied fields, revealing the type-I SC nature. This feature is attributable to the high Fermi velocity of linearly dispersive multibands. To clarify the mechanism of the puzzling LMR, investigations into the topological nature of those multibands in applied fields are highly desired.