cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Finite Size SU(3) Perk-Schultz Model with Deformation Parameter q=exp(i 2 pi/3)
Creators: name: Alcaraz, F. C.
name: Stroganov, Y.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: From extensive numeric diagonalizations of the SU(3) Perk-Schultz Hamiltonian with a special value of the anisotropy and different boundary conditions, we have observed simple regularities for a significant part of its eigenspectrum. In particular the ground state energy and nearby excitations belong to this part of the spectrum. Our simple formulae describing these regularities remind, apart from some selection rules, the eigenspectrum of the free fermion model. Based on the numerical observations we formulate several conjectures. Using explicit solutions of the associated nested Bethe-ansatz equations, guessed from an analysis of the functional equations of the model, we provide evidence for a part of them.
description: 19 pages, no figures
Essays on agency problems
Creators: name: Lee, Yeon Joon
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Agency problems
Vertical integration
Brokers
Intermediaries
Consumer finance
Structured products

description: This dissertation addresses many important economic questions surrounding agency problems and vertical incentives. The first chapter documents the institutional background and pricing of U.S. reverse convertible bonds. The primary reason why I look into the reverse convertible bonds market is that it has interesting variation, enabling me to answer research questions in the second chapter and the third chapter. The second chapter shows some suggestive evidence of agency problems and vertical incentives in the reverse convertible bonds market mainly using a reduced-form analysis. Finally, the third chapter estimates the degree of agency problems and the degree of vertical incentives using a structural model. I conclude by analyzing various counterfactual scenarios. The first chapter introduces a financial product called a reverse convertible bond. It documents the product, market structure, and distribution process of the bond. Using a data set on reverse convertible bonds, I calculate the fair value of each bond by which I derive an issuer markup, i.e. how much an issuer earns by issuing each bond. This variable plays a critical role in investigating agency problems and vertical incentive issues in the second and third chapters. I also introduce my second data set on broker firms in this chapter. The second chapter documents some suggestive evidence of agency problems and vertical incentives in the reverse convertible bonds market. Combining two data sets described in the first chapter, I show descriptive evidence of agency problems and vertical incentives which are against the relevant regulations in the market. Specifically, broker behavior indicates agency problems while the relevant regulations such as suitability standard or fiduciary duty prevent them from doing so. In addition, I show that brokers are sensitive to their vertically integrated upstream firm's profit while arms-length transaction laws prohibit them from doing so. The final chapter estimates the degree of agency problems as well as the degree of vertical incentives in the reverse convertible bonds market. Although I show suggestive evidence of agency problems and vertical incentives in the second chapter, it is not straight forward to estimate their severity using a reduced-form analysis. Thus, I introduce a structural model that allows us to estimate the degree of agency problems and the degree of vertical incentives. The estimation results suggest that there are severe levels of both agency problems and vertical incentives in the market. Lastly, the counterfactual analysis shows that there is a substantial consumer surplus loss arising from agency problems. I also document a consumer welfare loss coming from vertical incentives but the magnitude is smaller than the consumer welfare loss from agency problems.
Some economic aspects affecting small ruminants development in near east countries
Creators: name: I, Soliman
name: I, Soliman
Publisher: name: Unknown
Year: 1988
Subjects: subject: Farm Management
subject: International Development
subject: Livestock Production/Industries
subject: Economic aspects
subject: ruminants
subject: development in near east countries

description: Proceeding of A workshop on Small Ruminants Research and Development in the Near East, Held in Cairo, Egypt
Yang-Mills Integrals
Creators: name: Cicuta, G. M.
name: Molinari, L.
name: Vernizzi, G.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Two results are presented for reduced Yang-Mills integrals with different symmetry groups and dimensions: the first is a compact integral representation in terms of the relevant variables of the integral, the second is a method to analytically evaluate the integrals in cases of low order. This is exhibited by evaluating a Yang-Mills integral over real symmetric matrices of order 3.
description: LaTeX, 10 pages, references added and minimal changes
Exposure of subtle multipartite quantum nonlocality
Creators: name: Taddei, M. M.
name: Silva, T. L.
name: Nery, R. V.
name: Aguilar, G. H.
name: Walborn, S. P.
name: Aolita, L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The celebrated Einstein-Podolsky-Rosen quantum steering has a complex structure in the multipartite scenario. We show that a naively defined criterion for multipartite steering allows, like in Bell nonlocality, for a contradictory effect whereby local operations could create steering seemingly from scratch. Nevertheless, neither in steering nor in Bell nonlocality has this effect been experimentally confirmed. Operational consistency is reestablished by presenting a suitable redefinition: there is a subtle form of steering already present at the start, and it is only exposed -- as opposed to created -- by the local operations. We devise protocols that, remarkably, are able to reveal, in seemingly unsteerable systems, not only steering, but also Bell nonlocality. Moreover, we find concrete cases where entanglement certification does not coincide with steering. A causal analysis reveals the crux of the issue to lie in hidden signaling. Finally, we implement one of the protocols with three photonic qubits deterministically, providing the experimental demonstration of both exposure and super-exposure of quantum nonlocality.
description: Main text 9 pages and 5 figures, with appendices 21 pages and 7 figures total. Linked cross-references within PDF, but with no mark-up
Magnetic-domain-controlled vortex pinning in a superconductor/ferromagnet bilayer
Creators: name: Lange, M.
name: Van Bael, M. J.
name: Moshchalkov, V. V.
name: Bruynseraede, Y.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Vortex pinning in a type-II superconducting Pb film covering a Co/Pt multilayer with perpendicular magnetic anisotropy is investigated. Different stable magnetic domain patterns like band and bubble domains can be created in the Co/Pt multilayer, clearly influencing the vortex pinning in the superconducting Pb layer. Most effective pinning is observed for the bubble domain state. We demonstrate that the pinning properties of the superconductor/ferromagnet bilayer can be controlled by tuning the size, density and magnetization direction of the bubbles.
description: 4 pages, 3 figures, accepted for APL
Saldula lindbergi Lindskog 1975
Creators: name: Fent, Meral
name: Kment, Petr
name: Çamur-Elipek, Belgin
name: Kirgiz, Timur
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Saldidae
Saldula
Saldula lindbergi

description: Saldula lindbergi Lindskog, 1975
(Fig. 38)
 Material examined. ASIAN TURKEY: Antalya province: 80 km NE of Antalya, BeŞkonak, Köprülü canyon, 7.ix.1992, 2 ♂♂ (Fig. 38), Z. Jindra lgt., P. Kment det. (NMPC ZJPC); 50 km S Antalya, Tekirova env., near antique Phaselis, 3.–4.v.1991, 1 ♂, Z. Jindra lgt., P. Kment det. (ZJPC).
 Asian Turkey. Drake & Hoberlandt (1952, as S. hirsuta, misidentification), Hoberlandt (1952a, as S. hirsuta, misidentification); Cobben (1959, as a new species different from S. hirsuta), Lindskog (1975, 1995); this paper.
 Turkey (not distinguished). Kıyak & Özsaraç (2001), Önder et al. (2006).
 General distribution. Cyprus and southern Anatolia (Lindskog 1975, 1995).
 Comments. Drake & Hoberlandt (1952) and Hoberlandt (1952a) recorded this species from Anatolia under the name Saldula hirsuta (Reuter, 1888). Cobben (1959) was the first who recognized it as a new species different from S. hirsuta, but he did not describe it. Lindskog (1975) described his new species from Cyprus and attributed the Hoberlandt’s (1952a) specimens to it, considering the slight differences as intraspecific variability. Unfortunately, both specimens of S. linbergi from ‘Bürücek’ (Hoberlandt 1952a, Lindskog 1975) are currently missing in the NMPC.
 Identification. Lindskog (1975).
description: Published as part of Fent, Meral, Kment, Petr, Çamur-Elipek, Belgin & Kirgiz, Timur, 2011, Annotated catalogue of Enicocephalomorpha, Dipsocoromorpha, Nepomorpha, Gerromorpha, and Leptopodomorpha (Hemiptera: Heteroptera) of Turkey, with new records 2856, pp. 1-84 in Zootaxa 2856 (1) on pages 50-51, DOI: 10.11646/zootaxa.2856.1.1, http://zenodo.org/record/5286719
Increasing Developer Productivity by Assigning Well-Defined Roles in Teams
Creators: name: Gesing, Sandra
Publisher: name: figshare
Year: 2021
Subjects: Applied Computer Science

description: Developer productivity can be defined and measured in diverse ways. We support that counting lines, number of solved bugs and working hours are not good measures for analyzing developer productivity - we prefer to look at impact and sustainability of scientitic software. Based on these measurements, developer productivity for scientific software is influenced by various factors, some are more objective like good software engineering practices and some are subjective such as teamwork skills or preferences for software development kits. The work environment as well as team formation have a big influence on software sustainability and, thus, developer productivity. Developers often still work in silos in academia on a specific scientific software and might have a dual role as researcher and developer of scientific software. They are “all-rounders” for the development process and normally have to fill all roles in the development process from gathering requirements to implementing software to quality assurance measures. For the remainder of this paper we focus on developers working in teams for scientific software.
Digital Cultural Heritage and Wikimedia Commons Licenses: Copyright or Copywrong?
Creators: name: Kelly, Elizabeth Joan
Publisher: name: figshare
Year: 2019
Subjects: subject: 80706 Librarianship
subject: FOS: Media and communications
subject: Library and Information Studies
subject: Law
subject: FOS: Law

description: Cultural heritage institutions can contribute to public knowledge and increase awareness of their collections by uploading digital objects to Wikimedia Commons for use on Wikipedia and other Wikimedia Foundation projects. However, prior research has established the difficulty of and/or hesitation by many cultural heritage institutions in clearly and accurately labeling the copyright status of their born-digital and digitized collections. With this knowledge, how likely is it that digital cultural heritage will be findable and usable on Wikimedia Commons? This study seeks to determine how accurate rights statements for cultural heritage objects on Wikimedia Commons are, and whether inaccuracies can be linked to problematic rights statements in cultural heritage digital libraries or whether the inaccuracies stem from Wikimedia Commons. By evaluating the rights statements, licenses, and sources for 308 Wikimedia Commons objects from 57 cultural heritage organizations and comparing that information to corresponding licenses from digital libraries, we can begin to develop best practices and educational needs for digital librarians, archives, museum curators, and Wikipedians alike to improve the user experience for those using digital cultural heritage on Wikimedia projects.
This is the publisher's version of a manuscript originally published in The Journal of Copyright in Education and Librarianship, Volume 3, Issue 3: https://doi.org/10.17161/jcel.v3i3.9771
Entropic Elasticity at the Sol-Gel Transition
Creators: name: Farago, Oded
name: Kantor, Yacov
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The sol-gel transition is studied in two purely entropic models consisting of hard spheres in continuous three-dimensional space, with a fraction $p$ of nearest neighbor spheres tethered by inextensible bonds. When all the tethers are present ($p=1$) the two systems have connectivities of simple cubic and face-centered cubic lattices. For all $p$ above the percolation threshold $p_c$, the elasticity has a cubic symmetry characterized by two distinct shear moduli. When $p$ approaches $p_c$, both shear moduli decay as $(p-p_c)^f$, where $f\simeq 2$ for each type of the connectivity. This result is similar to the behavior of the conductivity in random resistor networks, and is consistent with many experimental studies of gel elasticity. The difference between the shear moduli that measures the deviation from isotropy decays as $(p-p_c)^h$, with $h\simeq 4$.
description: 12 pages, 3 eps figures, RevTex
Saldula melanoscela AT
Creators: name: Fent, Meral
name: Kment, Petr
name: Çamur-Elipek, Belgin
name: Kirgiz, Timur
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Saldidae
Saldula
Saldula melanoscela

description: Saldula melanoscela (Fieber, 1859)
 Material examined. ASIAN TURKEY: Antalya province: 80 km NE of Antalya, BeŞkonak, Köprülü canyon, 7.ix.1992, 1 ♀, Z. Jindra lgt., P. Kment det. (ZJPC); Elmalı env., Avlanbeli Geçidi [pass], 800–1600 m a.s.l., 14.– 17.vi.1996, 1 ♂ 1 ♀, Z. Malinka & V. Švihla lgt., P. Kment det. (NMPC, ZJPC). İzmir province: Efes, ruins of ancient Ephesos, 29.iv.1991, 1 ♀, Z. Jindra lgt., P. Kment det. (ZJPC).
 Asian Turkey. Hoberlandt (1952a, revised!), Lindskog (1995), Önder et al. (2006).
 Turkey (not distinguished). Cobben (1960), Péricart (1990), Kıyak & Özsaraç (2001).
 General distribution. Distributed from Sweden, Great Britain and Spain to Israel, Iran, Central Asia, northern China and East Siberia (Lindskog 1995; Lukashuk 1997; Protić 1998; Hewitt 2001; Vinokurov 2004, 2009b). In the collection of NMPC, there is one specimen from Lebanon: Nahr Array, 800 m a.s.l., 15.–20.ix.1952, Coll. Am Un. Beirut, K. Christiansen lgt., N.N. Vinokurov det. This is a new record for Lebanon.
 Identification. Cobben (1960), Péricart (1990), Linnavuori & Hosseini (2000), Vinokurov (2004).
description: Published as part of Fent, Meral, Kment, Petr, Çamur-Elipek, Belgin & Kirgiz, Timur, 2011, Annotated catalogue of Enicocephalomorpha, Dipsocoromorpha, Nepomorpha, Gerromorpha, and Leptopodomorpha (Hemiptera: Heteroptera) of Turkey, with new records 2856, pp. 1-84 in Zootaxa 2856 (1) on page 51, DOI: 10.11646/zootaxa.2856.1.1, http://zenodo.org/record/5286719
Do equidistant energy levels necessitate a harmonic potential?
Creators: name: Teichert, Fabian
name: Kuhn, Eduard
name: Thränhardt, Angela
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Experimental results from literature show equidistant energy levels in thin Bi films on surfaces, suggesting a harmonic oscillator description. Yet this conclusion is by no means imperative, especially considering that any measurement only yields energy levels in a finite range and with a nonzero uncertainty. Within this study we review isospectral potentials from the literature and investigate the applicability of the harmonic oscillator hypothesis to recent measurements. First, we describe experimental results from literature by a harmonic oscillator model, obtaining a realistic size and depth of the resulting quantum well. Second, we use the shift-operator approach to calculate anharmonic non-polynomial potentials producing (partly) equidistant spectra. We discuss different potential types and interpret the possible modeling applications. Finally, by applying $n$th order perturbation theory we show that \textbf{exactly} equidistant eigenenergies cannot be achieved by polynomial potentials, except by the harmonic oscillator potential. In summary, we aim to give an overview over which conclusions may be drawn from the experimental determination of energy levels and which may not.
Lattice Pseudospin Model for $ν=1$ Quantum Hall Bilayers
Creators: name: Burkov, A. A.
name: MacDonald, A. H.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a new theoretical approach to the study of $ν=1$ quantum Hall bilayer that is based on a systematic mapping of the microscopic Hamiltonian to an anisotropic SU(4) spin model on a lattice. To study the properties of this model we generalize the Heisenberg model Schwinger boson mean field theory (SBMFT) of Arovas and Auerbach to spin models with anisotropy. We calculate the temperature dependence of experimentally observable quantities, including the spin magnetization, and the differential interlayer capacitance. Our theory represents a substantial improvement over the conventional Hartree-Fock picture which neglects quantum and thermal fluctuations, and has advantages over long-wavelength effective models that fail to capture important microscopic physics at all realistic layer separations. The formalism we develop can be generalized to treat quantum Hall bilayers at filling factor $ν=2$.
description: 26 pages, 10 figures. The final version, to appear in PRB
Fixed-order and merged parton-shower predictions for WW and WWj production at the LHC including NLO QCD and EW corrections
Creators: name: Bräuer, Stephan
name: Denner, Ansgar
name: Pellen, Mathieu
name: Schönherr, Marek
name: Schumann, Steffen
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Regular Article - Theoretical Physics
NLO Computations
QCD Phenomenology

description: Abstract: First, we present a combined analysis of pp →μ+vμe−v¯e and pp →μ+vμe−v¯ej at next-to-leading order, including both QCD and electroweak corrections. Second, we provide all-order predictions for pp →μ+vμe−v¯e+jets using merged parton-shower simulations that also include approximate EW effects. A fully inclusive sample for WW production is compared to the fixed-order computations for exclusive zero- and one-jet selections. The various higher-order effects are studied in detail at the level of cross sections and differential distributions for realistic experimental set-ups. Our study confirms that merged predictions are significantly more stable than the fixed-order ones in particular regarding ratios between the two processes.
Molecular Modeling: Studies Investigating Mechanisms behind the Function of Biological Macromolecules
Creators: name: Serzhan Sakipov
Publisher: name: Carnegie Mellon University
Year: 2019
Subjects: subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: The main goal of research presented in this work is to decipher mechanisms of processesin macromolecular biological systems. Several such case studies are presented in this thesis. In biological systems a majority of sub-molecular atomistic mechanisms of functionally important processes are not accessible by experimental approaches. However, modern methods of computational chemistry and molecular modeling are suitable with the right application to step in and study the molecular mechanisms of some of these phenomena. The main approach used in this work is, for a given problem, to pick and match an appropriate combination of computational methods out of a modern theoretical tool kit. The first problem presented in this thesis is to predict pKas of amino acid residues in proteins. We have implemented an efficient algorithm to apply a Free Energy Perturbation (FEP) method to calculation of pKas. We have then established a link of
pKas of single amino acid residues with global conformational rearrangements of the protein. The second problem presented here is to model a pathway by which a bacterial scavenger protein extracts an iron heme group from a hemoglobin protein. The simulations allowed us to elucidate a mechanism of a heme extraction and to uncover
driving forces for such extraction, as well as to identify key amino acid residues involved in the heme transfer. The third problem presented in this work is to develop a mechanism
of a divalent ion permeation through a calcium selective epithelial ion channel TRPV6. We have also studied a difference in permeation mechanisms of different mono- and divalent cations through the TRPV6 channel. The forth problem presented in this thesis is conformational analysis of a backbone branched RNA (bbRNA) in free and bound to a protein states. The final problem described in this work is to understand mechanism of interactions of non-competitive inhibitors with a glutamate receptor.
The puzzlingly small CaII triplet absorption in elliptical galaxies
Creators: name: Saglia, R. P.
name: Maraston, Claudia
name: Thomas, Daniel
name: Bender, Ralf
name: Colless, Matthew
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We measure the central values (within Re/8) of the CaII triplet line indices CaT* and CaT and the Paschen index PaT at 8600 AA for a 93%-complete sample of 75 nearby early-type galaxies with BT<12 and Vgal<2490 km/s. We find that the values of CaT* are constant to within 5% over the range of central velocity dispersions 100
description: Accepted for publication in ApJL
Saldula opacula AT
Creators: name: Fent, Meral
name: Kment, Petr
name: Çamur-Elipek, Belgin
name: Kirgiz, Timur
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Saldidae
Saldula
Saldula opacula

description: Saldula opacula (Zetterstedt, 1838)
 Material examined. ASIAN TURKEY: Mersin province: KurtuluŞ, salt marsh, coast of Göksu river delta, Silifke env., 24.v.2005, 1 spec., Z. Malinka lgt., N. N. Vinokurov det. (NMPC). Sivas province: Zara env., Demiryurt (N 39°50'35.1" E 37°36'47.5"), river above the village, 26.vi.2002, 1 ♀, P. Kment lgt. & det. (NMPC).
 Asian Turkey. Seidenstücker (1964), Önder et al. (1981), Lindskog (1995), Önder et al. (2006); this paper.
 Turkey (not distinguished). Cobben (1960), Péricart (1990), Kıyak & Özsaraç (2001).
 General distribution. Holarctic species, distributed in Europe, in Asia from Anatolia to India (Kashmir), China (Heilongjiang, Inner Mongolia, Sichuan, Xinjiang, Yunnan), Korea, and Japan, and in Canada and the USA (Lee et al. 1994; Lindskog 1995; Protić 1998; Vinokurov, pers. comm.).
 Identification. Cobben (1960), Péricart (1990), Linnavuori & Hosseini (2000), Vinokurov (2004).
description: Published as part of Fent, Meral, Kment, Petr, Çamur-Elipek, Belgin & Kirgiz, Timur, 2011, Annotated catalogue of Enicocephalomorpha, Dipsocoromorpha, Nepomorpha, Gerromorpha, and Leptopodomorpha (Hemiptera: Heteroptera) of Turkey, with new records 2856, pp. 1-84 in Zootaxa 2856 (1) on page 52, DOI: 10.11646/zootaxa.2856.1.1, http://zenodo.org/record/5286719
waLBerla: A block-structured high-performance framework for multiphysics simulations
Creators: name: Bauer, Martin
name: Eibl, Sebastian
name: Godenschwager, Christian
name: Kohl, Nils
name: Kuron, Michael
name: Rettinger, Christoph
name: Schornbaum, Florian
name: Schwarzmeier, Christoph
name: Thönnes, Dominik
name: Köstler, Harald
name: Rüde, Ulrich
Publisher: name: arXiv
Year: 2019
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Programming current supercomputers efficiently is a challenging task. Multiple levels of parallelism on the core, on the compute node, and between nodes need to be exploited to make full use of the system. Heterogeneous hardware architectures with accelerators further complicate the development process. waLBerla addresses these challenges by providing the user with highly efficient building blocks for developing simulations on block-structured grids. The block-structured domain partitioning is flexible enough to handle complex geometries, while the structured grid within each block allows for highly efficient implementations of stencil-based algorithms. We present several example applications realized with waLBerla, ranging from lattice Boltzmann methods to rigid particle simulations. Most importantly, these methods can be coupled together, enabling multiphysics simulations. The framework uses meta-programming techniques to generate highly efficient code for CPUs and GPUs from a symbolic method formulation. To ensure software quality and performance portability, a continuous integration toolchain automatically runs an extensive test suite encompassing multiple compilers, hardware architectures, and software configurations.
Building the Digitally Gated Community: The Case of Nextdoor
Creators: name: Kurwa, Rahim
Publisher: name: University of Illinois at Chicago
Year: 2021
Subjects: subject: Law
subject: FOS: Law
subject: Sociology
subject: FOS: Sociology

description: The neighborhood is a historic and contemporary site of the assertion of white racial and economic domination, particularly over Black people. Although there is strong evidence that whites continue to prefer racially segregated neighborhoods, fifty years of fair housing jurisprudence has made it more difficult to openly bar non-white residents. Among the many strategies used to protect white domination of residential space is the coordinated surveillance and policing of non-white people. In this paper, I show how Nextdoor, a neighborhood-based social network, has become an important platform for the surveillance and policing of race in residential space, enabling the creation of what I call digitally gated communities. First, I describe the history of the platform and the forms of segregation and surveillance it has supplemented or replaced. Second, I situate the platform in a broader analysis of carcerality as a mode and logic of regulating race in the United States. Third, using examples drawn from public reports about the site, I illustrate how race is surveilled and policed in the context of gentrification and integration. Finally, I discuss implications, questions, and future issues that might arise on the platform.
Enhancing statistical inference in psychological research via prospective and retrospective design analysis
Creators: name: Altoè, Gianmarco
name: Bertoldo, Giulia
name: Callegher, Claudio Zandonella
name: Toffalini, Enrico
name: Calcagnì, Antonio
name: Finos, Livio
name: Pastore, Massimiliano
Publisher: name: arXiv
Year: 2019
Subjects: subject: Methodology (stat.ME)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: 62P15, 62-07, 62F03

description: In the past two decades, psychological science has experienced an unprecedented replicability crisis which uncovered several issues. Among others, statistical inference is too often viewed as an isolated procedure limited to the analysis of data that have already been collected. We build on and further develop an idea proposed by Gelman and Carlin (2014) termed "prospective and retrospective design analysis". Rather than focusing only on the statistical significance of a result and on the classical control of type I and type II errors, a comprehensive design analysis involves reasoning about what can be considered a plausible effect size. Furthermore, it introduces two relevant inferential risks: the exaggeration ratio or Type M error (i.e., the predictable average overestimation of an effect that emerges as statistically significant), and the sign error or Type S error (i.e., the risk that a statistically significant effect is estimated in the wrong direction). Another important aspect of design analysis is that it can be usefully carried out both in the planning phase of a study and for the evaluation of studies that have already been conducted, thus increasing researchers' awareness during all phases of a research project. We use a familiar example in psychology where the researcher is interested in analyzing the differences between two independent groups. We examine the case in which the plausible effect size is formalized as a single value, and propose a method in which uncertainty concerning the magnitude of the effect is formalized via probability distributions. Through several examples, we show that even though a design analysis requires big effort, it has the potential to contribute to planning more robust and replicable studies. Finally, future developments in the Bayesian framework are discussed.
description: 35 pages, 4 figures, manuscript currently under review
Quantum Field Theory on Noncommutative Spaces
Creators: name: Szabo, Richard J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A pedagogical and self-contained introduction to noncommutative quantum field theory is presented, with emphasis on those properties that are intimately tied to string theory and gravity. Topics covered include the Weyl-Wigner correspondence, noncommutative Feynman diagrams, UV/IR mixing, noncommutative Yang-Mills theory on infinite space and on the torus, Morita equivalences of noncommutative gauge theories, twisted reduced models, and an in-depth study of the gauge group of noncommutative Yang-Mills theory. Some of the more mathematical ideas and techniques of noncommutative geometry are also briefly explained.
description: 111 pages LaTeX, 6 eps figures; Some material and discussions added for clarity, corrections done, references added; Final version to be published in Physics Reports
Income structures of Maasai households- Who benefits whom?
Creators: name: Loos, Tim
name: Zeller, Manfred
name: Loos, Tim
name: Zeller, Manfred
Publisher: name: Unknown
Year: 2015
Subjects: subject: Consumer/Household Economics
subject: Gender
subject: household income
subject: milk sale
subject: Maasai
subject: Tanzania

description: Gendered division of responsibilities and activities is traditionally anchored in Maasai culture. With the changing socio-economic and natural environment, a diversification of livelihood strategies is observe by researchers. This found to induce intra-household changes. It is yet unclear how women and men contribute to household income and who benefits from milk sales as women's main income activity. Based on theoretic considerations, we use data of Maasai households living in Morogoro region, Tanzania, to address these questions by assessing respective income shares and milk commercialization. Our findings suggest that with increasing access to milk markets women contribute 39%, 52% and up to 57% of total income. Further, our results indicate that most women control the direct use of milk income. COnsidering indirect effects, this income benefits one fifth of women respondents. Supplementary housekeeping money is mostly spent on diversifying and increasing food purchases.
Syntheses, structure, DNA-binding and DFT studies of a Cu(II) complex based on a pyrazolone derivative
Creators: name: Xi, Wei
name: Wang, Cai-Yun
name: Meng, Huan-Huan
name: Song, Xue-Qin
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: A Cu(II) complex based on a pyrazolone derivative, 2-hydroxy-N′-((1-(4-methoxyphenyl)-3methyl-5-oxo-4,5-dihydro-1H-pyrazol-4-yl)(phenyl)methylene)benzohydrazide (H2L), has been prepared. IR spectra, UV-vis spectra, elemental analysis and single-crystal X-ray diffraction indicate that the Cu(II) complex was mononuclear with the chemical composition of [Cu(HL)Cl]·CH3OH. The Cu(II) compound presented herein exhibits interesting supramolecular characteristics and a novel 3D supramolecular architecture resulted due to the appropriate synergy of multiple intermolecular hydrogen bonds. The interaction of the Cu(II) complex with calf-thymus DNA was investigated by electronic absorption titration as well as EB-DNA competition experiment, and the results indicate that the Cu(II) compound which has a strong affinity for binding DNA is combined with DNA in an embedded manner. Furthermore, Time-Dependent Density Functional Theory calculations (TD-DFT) have been performed on optimized geometries for a better understanding of the electronic transitions in the UV-vis spectra of H2L and Cu(II) complex.
EU-wide individual Farm Model for CAP Analysis (IFM-CAP): Application to Crop Diversification Policy
Creators: name: Louhichi, Kamel
name: Ciaian, Pavel
name: Espinosa, Maria
name: Colen, Liesbeth
name: Perni, Angel
name: Gomez Y Paloma, Sergio
name: Louhichi, Kamel
name: Ciaian, Pavel
name: Espinosa, Maria
name: Colen, Liesbeth
name: Perni, Angel
name: Gomez Y Paloma, Sergio
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: Common Agricultural Policy
subject: Greening
subject: Farm Level Model
subject: Positive Programming Model
subject: EU

description: This paper presents the first EU-wide individual farm level model (IFM-CAP) intending to assess the impacts of CAP towards 2020 on farm economic and environmental performances. IFM-CAP is a static positive programming model applied to each EU-FADN individual farm to guarantee the highest representativeness of the EU agricultural sector and to capture the full heterogeneity across EU farms in terms of policy representation and impacts. The model is used to assess the effects of the crop diversification measure. Results show that most farms choose to comply with the diversification measure owing to the sizable subsidy reduction imposed in case of non-compliance. However, the overall impact on farm income is rather limited: farm income decreases by less than 1% at EU level, and only 5% of the farm population will be negatively affected. Nevertheless, for a small number of farms the income effect could be more substantial (more than -10%).
МАГНИТОМЕТР ПРОТОННЫЙ РЕГИСТРИРУЮЩИЙ модель MP - 03. Проспект НПФ ИМПЕДАНС, 2005. - 2 с.
Creators: name: Зверев А.С., Кириаков В.Х.
Publisher: name: Zenodo
Year: 2005
Subjects: Магнитное поле, протонные магнитометры, магнитные измерения, магнитовариационная станция

description: Магнитометр предназначен для автоматического измерения модуля вектора магнитной индукции (ВМИ) поля Земли и накопления данных во внутренней памяти. Основное назначение прибора - работа в качестве переносной вариационной станции.
Asymmetric Cost Pass-Through? Empirical Evidence on the Role of Market Power, Search and Menu Costs
Creators: name: Loy, Jens-Peter
name: Glauben, Thomas
name: Weiss, Christoph
name: Loy, Jens-Peter
name: Glauben, Thomas
name: Weiss, Christoph
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Asymmetric Cost Pass-Through
subject: Market Power
subject: Menu Costs
subject: Search Costs
subject: Milk
subject: Food Retailing
subject: Germany

description: We estimate cost pass-through rates based on data for store-level retail prices and wholesale costs. The data allows us to identify heterogeneity in cost pass-through across retailers and relate it to underlying explanatory factors such as retailer market power, measures of consumer search and menu costs. Results from a threshold-errorcorrection- model clearly provide empirical support for the ‘rockets and feathers’ phenomenon. In contrast to much of the literature which explains the ‘rockets and feathers’ phenomenon as a result of retailers’ market power, we find contrary find that the degree of asymmetry between costs and prices is negatively related to a measure of market power.
Do We Understand What Is Deconfinement?
Creators: name: Yukalov, V. I.
name: Yukalova, E. P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: An overview is given of different approaches to describing the process of deconfinement in quantum chromodynamics. The analysis of the known approaches demonstrates that the detailed picture of how deconfinement really occurs has not yet been understood. Therefore, one has to be rather cautious when interpreting experimental signals as attributed to deconfinement.
description: Latex file, 18 pages
Saldula orthochila
Creators: name: Fent, Meral
name: Kment, Petr
name: Çamur-Elipek, Belgin
name: Kirgiz, Timur
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Saldidae
Saldula
Saldula orthochila

description: Saldula orthochila (Fieber, 1859)
 Asian Turkey. Lindskog (1995).
 Turkey (not distinguished). Péricart (1990, as revised), Kıyak & Özsaraç (2001), Önder et al. (2006).
 General distribution. Widely distributed in Palaearctic, Oriental (India), Nearctic, and Neotropical Region (Lindskog 1995, Protić 1998).
 Comment. There is no exact record published from Turkey so far.
 Identification. Cobben (1960), Péricart (1990), Linnavuori & Hosseini (2000), Vinokurov (2004).
description: Published as part of Fent, Meral, Kment, Petr, Çamur-Elipek, Belgin & Kirgiz, Timur, 2011, Annotated catalogue of Enicocephalomorpha, Dipsocoromorpha, Nepomorpha, Gerromorpha, and Leptopodomorpha (Hemiptera: Heteroptera) of Turkey, with new records 2856, pp. 1-84 in Zootaxa 2856 (1) on page 52, DOI: 10.11646/zootaxa.2856.1.1, http://zenodo.org/record/5286719
The Effects of Vietnamese Export Policies on the World Market Integration of Domestic Rice Markets
Creators: name: Luckmann, Jonas
name: Ihle, Rico
name: Kleinwechter, Ulrich
name: Grethe, Harald
name: Luckmann, Jonas
name: Ihle, Rico
name: Kleinwechter, Ulrich
name: Grethe, Harald
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: export ban
subject: export tax
subject: multivariate Vector Error Correction Model
subject: price transmission
subject: South East Asia

description: World market prices of rice have been subject to large fluctuations in recent years. Vietnam is a major exporter of rice which is also the main staple food in the country. The Vietnamese government is limiting exports, to insulate domestic consumers from world market price hikes. The effects of these policy interventions on price transmission are investigated in this study. We analyze the marketing chain of rice in Vietnam and construct a multivariate Vector Error Correction Model for markets across the country and include a policy parameter and an international reference price. We find reasonable cointegration of most markets analyzed and only a limited effect of the applied export policies: they suppressed the price in the main producing region, but did not significantly affect the prices in main deficit region. Thus food security programs directly targeting poor consumers are likely to be more efficient to improve food security.
When Water Saving Limits Recycling: Modeling Economy-wide Linkages of Wastewater Use
Creators: name: Luckmann, Jonas
name: Grethe, Harald
name: McDonald, Scott
name: Luckmann, Jonas
name: Grethe, Harald
name: McDonald, Scott
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: wastewater recycling
subject: general computable equilibrium model (CGE)
subject: STAGE_W
subject: Israel

description: Due to water scarcity problems, the reclamation of wastewater becomes a more and more important water source in many parts of the world. The use of reclaimed wastewater is often fostered, as a cheap and reliable form of water supply, which preserves water resources and at the same time allows to economically making use of sewage. This study presents a novel approach to integrate wastewater recycling in a Computable General Equilibrium model and to link the quantity of reclaimed wastewater produced to the water consumption of economic entities connected to a sewer system, such that a cascading water use can be modeled in a meaningful way. An application to the case of Israel shows that not considering this linkage can lead to an overestimation of compensation effects from wastewater recycling in case economic entities engage in water saving.
TEACHING AGRICULTURAL ECONOMICS IN THE GENERAL UNIVERSITIES OF BANGLADESH
Creators: name: Huq, Mahfuzul
name: Huq, Mahfuzul
Publisher: name: Unknown
Year: 1984
Subjects: Teaching/Communication/Extension/Profession

description: This paper outlines the importance of teaching agricultural economics in Bangladesh, then makes a critical review of the syllabuses on the subject taught as a part of the curricula for under-and postgraduate degrees in economics offered by the four general universities in the country. It is concluded that the emphasis laid by different universities to the need for teaching agricultural economics is generally low and varied as reflected in the differences in curriculum, quality of teaching staff, reading materials and other supporting inputs. A greater emphasis on the subject is advocated and to materialise it, a number of suggestions are made.
Congruence method for global Darboux reduction of finite-dimensional Poisson systems
Creators: name: Hernández-Bermejo, Benito
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A new procedure for the global construction of the Casimir invariants and Darboux canonical form for finite-dimensional Poisson systems is developed. This approach is based on the concept of matrix congruence and can be applied without the previous determination of the Casimir invariants (recall that their prior knowledge is unavoidable for the standard reduction methods, thus requiring either the integration of a system of PDEs or solving some equivalent problem). Well the opposite, in the new congruence method, both the Darboux coordinates and the Casimir invariants arise simultaneously as the outcome of the reduction algorithm. In fact, the congruence algorithm proceeds only in terms of matrix-algebraic transformations and direct quadratures, thus avoiding the need of previously integrating a system of PDEs and therefore improving previously known approaches. Physical examples illustrating different aspects of the theory are provided.
Invariant embeddings of unimodular random planar graphs
Creators: name: Benjamini, Itai
name: Timar, Adam
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Consider an ergodic unimodular random one-ended planar graph $\G$ of finite expected degree. We prove that it has an isometry-invariant locally finite embedding in the Euclidean plane if and only if it is invariantly amenable. By "locally finite" we mean that any bounded open set intersects finitely many embedded edges. In particular, there exist invariant embeddings in the Euclidean plane for the Uniform Infinite Planar Triangulation and for the critical Augmented Galton-Watson Tree conditioned to survive. Roughly speaking, a unimodular embedding of $\G$ is one that is jointly unimodular with $\G$ when viewed as a decoration. We show that $\G$ has a unimodular embedding in the hyperbolic plane if it is invariantly nonamenable, and it has a unimodular embedding in the Euclidean plane if and only if it is invariantly amenable. Similar claims hold for representations by tilings instead of embeddings.
description: 24 pages, 4 figures
Transition form factors and helicity amplitudes for electroexcitation of negative- and positive parity nucleon resonances in a light-front quark model
Creators: name: Obukhovsky, Igor T.
name: Faessler, Amand
name: Fedorov, Dimitry K.
name: Gutsche, Thomas
name: Lyubovitskij, Valery E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A workable basis of quark configurations $s^3$, $s^2p$ and $sp^2$ at light front has been constructed to describe the high-$Q^2$ behavior of transition form factors and helicity amplitudes in the electroproduction of the lightest nucleon resonances, $N_{1/2^-}(1535)$ and $N_{1/2^+}(1440)$. High-quality data of the CLAS Collaboration are described in the framework of a model which takes into account mixing of the quark configurations and the hadron-molecular states. The model allows for a rough estimate of the quark core weight in the wave function of the resonance in a comparison with high momentum transfer data on resonance electroproduction.
description: 18 pages
DEVELOPMENT OF TEACHING MATERIALS FOR AGRICULTURAL ECONOMICS
Creators: name: Khan, M. Sekandar
name: Khan, M. Sekandar
Publisher: name: Unknown
Year: 1984
Subjects: Research and Development/Tech Change/Emerging Technologies

description: It is contended in this paper that in the general universities teaching agricultural economics as a subject has received unduly low preference. There are many reasons for this, one of the most important being lack of teaching materials based on local farming systems, experiences and data. Efforts to improve the situation have been identified and possible future actions suggested.
Effect of the electric field on a superconducting powder
Creators: name: Shrivastava, Keshav N.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We find that in the presence of an electric field there is an attractive intergrain interaction in superconductors which is small. When charge on the ball is permitted to vary with the ball radius, very large balls can be formed. The pairing energy makes the ball compact and hence reduces the size of the ball compared with the classical value. The ball radius depends on the gap of the superconductor due to Josephson tunneling.
description: 8 pages TeX