cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Self-consistent Conserving Theory for Quantum Impurity Systems: Renormalization Group Analysis
Creators: name: Kirchner, Stefan
name: Kroha, Johann
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We review the diagrammatic, conserving theory for quantum impurities with strong on-site repulsion. The method is based on auxiliary particle technique, where Wick's theorem is valid, which opens up the possibility for generalizations to more complicated situations. An analysis in terms of the perturbative renormalization group (RG) shows that on the level of the Conserving T--matrix Approximation the theory correctly describes the RG flow, including the non-scaling of potential scattering terms and the correct Kondo temperature.
description: 17 pages, 7 figures, dedicated to Prof. Peter W\"olfle on the occasion of his 60th birthday
From Television to social media. Persuasive strategies through 'intertextual irony'
Creators: name: Ruggiero, Federica
Publisher: name: Zenodo
Year: 2024
Subjects: Irony, Intertextuality, Social Media, Television, Advertising, Semiotics

description: Presentation for the Fifteenth International Conference on The Image #ICOTI24

 

Abstract

Irony is a complex discursive tool whose power can serve as both social critique and manipulative concealment. In fact, it is widely exploited in media communication due to its significant persuasive potential. The first postmodernist novelists played a key role in debunking the vacuous and manipulative nature of consumerism and entertainment culture. Their crucial tool has been irony, which unveiled the ideological essence of Western mass cultural products by subverting the conventions of TV narrations. Nevertheless, 1990s writers failed to introduce a new cultural paradigm that could supplant the former. Meanwhile, the television industry has started exploiting irony against itself to deflect criticism related to its own superficiality and manipulation. TV has become unbeatable because it appears self-critical and thus “sincere”. This paper delineates the type of irony that media have employed in order to influence the audience and to overcome its skepticism, focusing specifically on the evolution of this persuasive strategy from the era of TV dominance to the era of social media supremacy. In fact, the process earlier described is currently unfolding in nowadays advertising on social media, through something we can label as ‘intertextual irony’, which is a peculiar kind of irony that breaks traditional textual rules to establish a complicity with the viewers and induce them to align with the behaviours prompted by the advertisements. Using a semiotic perspective, it will show how this mechanism works by analysing a commercial for NooN nail polish line by the Italian rapper Fedez.
Agricultural Trade Policy Distortions and Food Security: Is there a Causal Relationship?
Creators: name: Magrini, Emiliano
name: Montalbano, Pierluigi
name: Nenci, Silvia
name: Salvatici, Luca
name: Magrini, Emiliano
name: Montalbano, Pierluigi
name: Nenci, Silvia
name: Salvatici, Luca
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: Research Methods/ Statistical Methods
subject: Food security
subject: International trade
subject: Trade measures
subject: Impact evaluation
subject: GPS

description: The aim of this paper is to assess the causal impact of trade policy distortions on food security. This is an hot issue since restrictions to agricultural trade have been generally applied by national governments, especially in developing countries, as a tool to insulate domestic markets from international prices turmoil. The added value of this work is twofold: i) the use of a non parametric matching technique with continuous treatment, namely the Generalised Propensity Score (GPS) to address the self selection bias; ii) the analysis of treatment (by commodities) as well as outcome heterogeneity (i.e., different dimensions of food security). The outcomes of our estimates show clearly that trade policy distortions are, overall, signficantly correlated with the various dimensions of food security under analysis but on the opposite direction than hoped for by policy-makers: countries less prone to adopt trade distortion policies tend to be better off in all the dimensions of food security (food availability, access, utilisation) with the relevant exception of food stability.
Anion charge-lattice volume dependent Li ion migration in compounds with the face-centered cubic anion frameworks
Creators: name: Xu, Zhenming
name: Chen, Xin
name: Chen, Ronghan
name: Li, Xin
name: Zhu, Hong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The proper design principles are essential for the efficient development of superionic conductors. However, the existing design principles are mainly proposed from the perspective of crystal structures. In this work, the face-centered cubic (fcc) anion frameworks were creatively constructed to study the effects of anion charge and lattice volume on the stability of lithium ion occupation and lithium ion migration. Both the large negative anion charges and large lattice volumes would increase the relative stabilities of lithium-anion tetrahedron, and make Li ions prefer to occupy the tetrahedral sites. For a tetrahedral Li ion migration to its adjacent tetrahedral site through an octahedral transition state, the smaller the negative anion charge is, the lower the lithium ion migration barrier will be. While for an octahedral Li ion migration to its adjacent octahedral site through a tetrahedral transition state, the larger negative anion charge is, the lower the lithium ion migration barrier will be. New design principles for developing superionic conductors with the fcc anion framework were proposed. Low Li ion migration barriers would be achieved by adjusting the non-lithium elements within the same crystal structure framework to obtain the desired electronegativity difference between the anion element and non-lithium cation element.
description: 28 pages. 5 figure
Impact of industry on agricultural development in Sylhet region of Bangladesh: Farmer’s perception
Creators: name: Riya, Susmita Das
name: Riya, Susmita Das
Publisher: name: Unknown
Year: 2021
Subjects: subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: Agriculture
subject: Industry
subject: Farmers
subject: Perception
subject: Impact

description: The study targets at farmer’s perception and their cognition how they conceive that agricultural performance has been affected and devastated through industrial work. It reviews and investigates the opinion of 25% farmers of two villages from each upazila of two named Madhapur and Habiganj sadar upazila in Sylhet division where Charu Ceramic Industry Limited and Olipur industry are located respectively from mid-September to mid-October, 2021 through survey of questionnaire, interview and group discussion. According to 85% farmers, the industry shades agriculture by imposing an adverse and toxic impact on agricultural exposure and development. Among them, (41.6% and 48.4%) of farmers realize that the industry creates high propensity of losing standard quality of soil and water, respectively. They (40.2%) notice that invasion of several dangerous insects on crops has become prominent and unmanageable near the industrial area. The study represents such kind of realization of farmers to show a salient feature in view of their finding causes and intuition with significant numerical data.
Observing the Feedback from Embedded Super Star Clusters with NIRSPEC
Creators: name: Cohen, Daniel Parke
Publisher: name: Zenodo
Year: 2020
Subjects: Galaxies
Galaxy evolution
Infrared astronomy
Observational astrophysics
Star clusters
Star formation

description: As the birth places of super star clusters (SSCs), starbursts provide a testbed of astrophysics on a vast range of scales, from the microphysics of star formation to the macrophysics describing the evolution of galaxies and ultimately the Universe as a whole. SSCs represent the dominant mode of star formation in the early Universe. In the local Universe, these ~1-10 Myr old systems host dense concentrations of thousands of massive stars, offering an unprecedented view of the likely progenitors of globular clusters. This dissertation investigates the influence of SSCs on the gas that they ionize and subsequent effect of their starbursts on the galaxies in which they form. In particular, I explore the following questions: how does massive star feedback clear natal gas from SSCs? What conditions allow a cluster to remain bound through this gas dispersal phase or form multiple generations of stars? Through what mechanisms do starbursts regulate the central mass evolution of disk galaxies? How do SSCs drive chemically enriched, galaxy-scale winds from starbursts? To study the launching of winds, we need tracers that can penetrate the dusty clouds around young SSCs, and both high spatial and spectral resolution. The Brackett α line (4.05μm) is ideal, but not available to most observers. Using NIRSPEC (Keck II) we can map Br α and probe the dynamics of heavily embedded HII regions near SSCs. In this thesis, we present NIRSPEC observations in a variety of starburst environments, with the aim of providing an empirical basis for the emerging paradigm in the formation of the most massive stellar systems.
Political Reforms and Food Security
Creators: name: Pieters, Hannah
name: Curzi, Daniele
name: Olper, Alessandro
name: Swinnen, Jo
name: Pieters, Hannah
name: Curzi, Daniele
name: Olper, Alessandro
name: Swinnen, Jo
Publisher: name: Unknown
Year: 2014
Subjects: subject: Health Economics and Policy
subject: Labor and Human Capital
subject: Political Economy
subject: food security
subject: political reform
subject: synthetic control method

description: This paper studies the effect of a political regime transition on food security and more specifically on child mortality. Using a new estimation approach, the Synthetic Control Method, we find that a political reform towards a democracy does not systematically reduce child mortality. Of the 33 country case studies, we find a significant and positive relation between food security and political reforms for 4 countries, while for the remaining 29 countries no impact was found. These results are in contrast with the results from the traditional difference-in-difference estimations
A Simple Proof of some Generalized Principal Ideal Theorems
Creators: name: Eisenbud, David
name: Huneke, Craig
name: Ulrich, Bernd
Publisher: name: arXiv
Year: 2002
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13C15, 13C40; 13D10

description: Using symmetric algebras we simplify (and slightly strengthen) the Bruns-Eisenbud-Evans "generalized principal ideal theorem" on the height of order ideals of non-minimal generators in a module. We also obtain a simple proof and an extension of a result by Kwieciński, which estimates the height of certain Fitting ideals of modules having an equidimensional symmetric algebra.
description: 6 pages, LaTeX
title: Average coseimic slip profiles
Creators: name: Thingbaijam, Kiran K.S.
name: Van Dissen, Russ J.
name: Shaw, B. E.
name: Gerstenberger, Matt C.
Publisher: name: GNS Science
Year: 2022

description: Despite the potential impact on earthquake rupture forecasts for seismic hazard analysis, derivation of applicable average coseismic slip profiles has received relatively limited attention. Here, we present improved insight using a set of rupture models of past earthquakes. We find that along-strike slip profiles are well approximated by a power-of-sine function with index = 1/2 (i.e. sinesqrt function), corroborating Biasi and Weldon (2006). However, elongated ruptures (with aspect ratios >5.0) have a flatter profile. Additionally, down-dip profiles for buried ruptures conform to the sinesqrt function, whereas those for surface rupture events have lesser tapering at the upper fault edge. These findings agree with those obtained from analysis of simulated quasi-dynamic rupture models. Further, we demonstrate that the present findings are also consistent with characterisation of slip heterogeneity through a random field model of slip. (The authors)
Quantum dots in magnetic fields: thermal response of broken symmetry phases
Creators: name: Dean, D. J.
name: Wells, J. C.
name: Strayer, M. R.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the thermal properties of circular semiconductor quantum dots in high magnetic fields using finite temperature Hartree-Fock techniques. We demonstrate that for a given magnetic field strength quantum dots undergo various shape phase transitions as a function of temperature, and we outline possible observable consequences.
description: In Press, Phys. Rev. B (2001)
Infrastructure and rural development: insights from a Grameen Bank village phone initiative in Bangladesh*
Creators: name: Bayes, Abdul
name: Bayes, Abdul
Publisher: name: Unknown
Year: 2001
Subjects: subject: International Development
subject: Research and Development/Tech Change/Emerging Technologies
subject: Telecommunications technology
subject: Microfinance
subject: Grameen Bank
subject: Rural development
subject: Gender

description: The intention of the present paper is to evaluate the role of telecommunications within the contexts of rural development in general and of poverty reduction in particular. Bangladesh has been selected as a case study due to the uniqueness it displayed in an innovative program for expanded telecom infrastructure, in which Grameen Bank (GB) of Bangladesh, the village-based micro-finance organisation, leased cellular mobile phones to successful members. GB calls these phones village pay phones (VPPs). The effects ofVPPs are assessed from two angles: sellers of services (telephone lessees/owners) and buyers of services (villagers). The findings of the study lead to two basic conclusions: first, pursuance of pragmatic policies can turn telephones into production goods, especially through lowering transaction costs, and second, the services originating from telephones in villages are likely to deliver (even) more benefits to the poor than to the non-poor. The VPPs also seem to have perceptible and positive effects on the empowerment and social status of phone-leasing women and their households. For villagers in general, phones offer additional non-economic benefits such as improved law enforcement, more rapid and effective communications during disasters, stronger kinship bonding, etc. GB's style of managing communications can help significantly to expand access to this vital information input for all segments of the population, reduce inequality and thus enhance the broad-based, pro-poor orientation of rural development activities.© 2001 Elsevier Science B.V. All rights reserved.
“Using Experiments to Address Attribute Non-attendance in Consumer Food Choices”
Creators: name: Caputo, Vincenzina
name: Loo, Ellen J. Van
name: Scarpa, Riccardo
name: Nayga, Rodolfo M.
name: Verbeke, Wim
name: Caputo, Vincenzina
name: Loo, Ellen J. Van
name: Scarpa, Riccardo
name: Nayga, Rodolfo M.
name: Verbeke, Wim
Publisher: name: Unknown
Year: 2014
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Research Methods/ Statistical Methods
subject: serial stated attribute non-attendance
subject: choice task attribute non-attendance
subject: inferred attribute non-attendance
subject: food choice experiments
subject: food labeling

description: A number of choice experiments (CEs) studies have shown that survey respondents employ heuristics such as attribute non-attendance (ANA) while evaluating food. This paper addresses a set of methodological questions. First, it explores if ANA is an issue to take into account in food valuation studies. Second, it assesses if there is any difference in terms of welfare estimates between the two common ways of collecting self-reported stated ANA (serial and choice task). Next, it validates the statements of ANA behavior provided by the respondents across serial and choice task self-reported ANA. Lastly, it explores the issue of concordance between the stated ANA and inferred ANA methods. We estimated a set of choice models including inferred or observed ANA information. Our results show a clear winner between the two stated approaches, choice task, which also better matches the inferred ANA data.
The distance between Inherent Structures and the influence of saddles on approaching the mode coupling transition in a simple glass former
Creators: name: Fabricius, Gabriel
name: Stariolo, Daniel A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We analyze through molecular dynamics simulations of a Lennard-Jones binary mixture the statistics of the distances between inherent structures (IS) sampled at temperatures above the mode coupling transition temperature T_MCT. We take equilibrated configurations and randomly perturb the coordinates of a given number of particles. After that we take the nearest IS of both the original configuration and the perturbed one and evaluate the distance between them. This distance presents an inflection point near T~1 with a strong decrease below this temperature and goes to a small but nonzero value on approaching T_MCT. In the low temperature region we study the statistics of events which give zero distance, i.e. dominated by minima, and find evidence that the number of saddles decreases exponentially near T_MCT. This implies that saddles continue to exist even for T<=T_MCT. As at T_MCT the extrapolated diffusivity goes to zero our results imply that there are saddles associated with nondiffusional events at T
description: 5 pages, 5 ps figures
Schizotrema leopardinum Hale 1949
Creators: name: Petrescu, Iorgu
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Lecanoromycetes
Ostropales
Graphidaceae
Schizotrema
Schizotrema leopardinum

description: Schizotrema leopardinum Hale, 1949
 Schizotrema leopardinum Hale, 1949: 234–236. Watling, 1991: 755. Băcescu, 1992: 260. Petrescu, 2001b: 116. Stoddart & Lowry, 2003: 418. Petrescu, 2006: 163.
 Material examined: 1♀, P.90818; 1♀, P.65083; 1♀, 1♂, P.65089; 1♀, P.65084; 1♀, P.65087; 2♀♀, P.65095; 2♀♀, 1♂, P.65099; 4♀♀, P.65295; 1♀, P.65374; 1♂, P.65375; 1♂, P.65383; 3♂♂, P.65610.
 Distribution. Australia (WA) at 3–5 m (Băcescu, 1992) and Tanzania (Petrescu, 2001). Now known to be more widespread in Australia: QLD—Lizard Island, at 3–21.2 m; SA—Yorke Peninsula; and WA— 30 km south of Carnarvon, Rottnest Island and Vlaming Head, at 0.5–1 m depth.
description: Published as part of Petrescu, Iorgu, 2018, On the Family Nannastacidae (Crustacea, Cumacea) from the Australian Museum Collection, pp. 1-111 in Records of the Australian Museum 70 (1) on page 45, DOI: 10.3853/j.2201-4349.70.2018.1645, http://zenodo.org/record/5236860
Dynamic percolation theory for particle diffusion in a polymer network
Creators: name: Durr, O.
name: Volz, T.
name: Dieterich, W.
name: Nitzan, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Tracer-diffusion of small molecules through dense systems of chain polymers is studied within an athermal lattice model, where hard core interactions are taken into account by means of the site exclusion principle. An approximate mapping of this problem onto dynamic percolation theory is proposed. This method is shown to yield quantitative results for the tracer correlation factor of the molecules as a function of density and chain length provided the non-Poisson character of temporal renewals in the disorder configurations is properly taken into account.
Additional file 2 of Investigation of synovial fluid lubricants and inflammatory cytokines in the horse: a comparison of recombinant equine interleukin 1 beta-induced synovitis and joint lavage models
Creators: name: Watkins, Amanda
name: Fasanello, Diana
name: Stefanovski, Darko
name: Schurer, Sydney
name: Caracappa, Katherine
name: D’Agostino, Albert
name: Costello, Emily
name: Freer, Heather
name: Rollins, Alicia
name: Read, Claire
name: Su, Jin
name: Colville, Marshall
name: Paszek, Matthew
name: Wagner, Bettina
name: Reesink, Heidi
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 2: Supplemental Data 2. Mean and standard error of the mean for the non-adjusted parameters measured in synovial fluid following synovitis induction and intra-articular lavage of the MCJ and TCJ. Data table of the means and standard error of the means for the unadjusted data described in the paper.
Tank irrigation management as a local common property: the case of Tamil Nadu, India
Creators: name: Sakurai, T.
name: Palanisami, K.
name: Sakurai, T.
name: Palanisami, K.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Farm Management
subject: Production Economics
subject: India
subject: Rice
subject: Tanks
subject: Wells
subject: Irrigation

description: The objective of this paper is to conduct theoretical inquiries and empirical analysis on the issue of institutional evolution for resource management, focusing on irrigation water, a traditional local common property resource. Two management schemes for inigation water, a community management regime (tank irrigation) and an individualised management regime (well irrigation), are compared in terms of rice production efficiency. Using farm household data collected by the authors in Tamil Nadu, India, it is found that the profit of rice production using well water only is low due to the high labour input required for well irrigation management. Then, estimation of the profit function reveals that the profit of farmers using both tank and well water is statistically significantly higher than that of farmers who use either well water only or tank water only. The result, based on game theoretical inquiries, implies that in equilibrium tank and well inigation can coexist. Moreover, it is calculated that about 90% of farmers will use wells in equilibrium. Considering that well users are only 37% of all farmers at present, the number of wells will increase. © 2001 Elsevier Science B. V. All rights reserved.
The Holographic Dual of Strongly γ-deformed N=4 SYM Theory: Derivation, Generalization, Integrability and Discrete Reparametrization Symmetry
Creators: name: Gromov, Nikolay
name: Sever, Amit
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently, we constructed the first-principle derivation of the holographic dual of N=4 SYM in the double-scaled $γ$-deformed limit directly from the CFT side. The dual fishchain model is a novel integrable chain of particles in AdS5. It can be viewed as a discretized string and revives earlier string-bit approaches. The original derivation was restricted to the operators built out of one of two types of scalar fields. In this paper, we extend our results to the general operators having any number of scalars of both types, except for a very special case when their numbers are equal. Interestingly, the extended model reveals a new discrete reparametrization symmetry of the "world-sheet", preserving all integrals of motion. We use integrability to formulate a closed system of equations, which allows us to solve for the spectrum of the model in full generality, and present non-perturbative numerical results. We show that our results are in agreement with the Asymptotic Bethe Ansatz of the fishnet model up to the wrapping order at weak coupling.
description: 30 pages, 11 figures. v2: references added
Magnetic field effects in energy relaxation mediated by Kondo impurities
Creators: name: Goeppert, G.
name: Galperin, Y. M.
name: Altshuler, B. L.
name: Grabert, H.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the energy distribution function of quasiparticles in voltage biased mesoscopic wires in presence of magnetic impurities and applied magnetic field. The system is described by a Boltzmann equation where the collision integral is determined by coupling to spin 1/2 impurities. We derive an effective coupling to a dissipative spin system which is valid well above Kondo temperature in equilibrium or for sufficiently smeared distribution functions in non-equilibrium. For low magnetic field an enhancement of energy relaxation is found whereas for larger magnetic fields the energy relaxation decreases again meeting qualitatively the experimental findings by Anthore et al. (cond-mat/0109297). This gives a strong indication that magnetic impurities are in fact responsible for the enhanced energy relaxation in copper wires. The quantitative comparison, however, shows strong deviations for energy relaxation with small energy transfer whereas the large energy transfer regime is in agreement with our findings.
description: 14 pages, 8 figures
Quasi-Contextualized Speech Treatment in Traumatic Brain Injury Inpatient Rehabilitation_Effects on Outcomes During the First Year After Discharge.pdf
Creators: name: Beaulieu, Cynthia
Publisher: name: Health Research Alliance
Year: 2021
Subjects: subject: 110321 Rehabilitation and Therapy (excl. Physiotherapy)
subject: FOS: Clinical medicine

description: The attached article describes the findings of our analysis of quasi-contextualized treatment
Additional file 1 of Clinical, biochemical, and genetic analysis of a Chinese Han pedigree with holocarboxylase synthetase deficiency: a case report
Creators: name: Zheng, Zhenzhu
name: Yuan, Gaopin
name: Zheng, Minyan
name: Lin, Yiming
name: Zheng, Faming
name: Jiang, Mengyi
name: Zhu, Lin
name: Fu, Qingliu
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. A The BAEP study during an acute episode in the patient. (B) The BAEP study after biotin therapy for 43 days.
Schizotrema nudum Tafe & Greenwood 1996
Creators: name: Petrescu, Iorgu
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Lecanoromycetes
Ostropales
Graphidaceae
Schizotrema
Schizotrema nudum

description: Schizotrema nudum Tafe & Greenwood, 1996
 Schizotrema nudum Tafe & Greenwood, 1996: 382–389. Stoddart & Lowry, 2003: 418.
 Material examined: 1♀, P.65377.
 Distribution. Australia: QLD—Moreton Bay, 2–3 m depth (Tafe & Greenwood, 1996) and now from WA: Rottnest Island.
description: Published as part of Petrescu, Iorgu, 2018, On the Family Nannastacidae (Crustacea, Cumacea) from the Australian Museum Collection, pp. 1-111 in Records of the Australian Museum 70 (1) on page 46, DOI: 10.3853/j.2201-4349.70.2018.1645, http://zenodo.org/record/5236860
Diagrammatic Quantum Monte Carlo for Two-Body Problem: Exciton
Creators: name: Burovski, E. A.
name: Mishchenko, A. S.
name: Prokof'ev, N. V.
name: Svistunov, B. V.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a novel method for precise numerical solution of the irreducible two-body problem and apply it to excitons in solids. The approach is based on the Monte Carlo simulation of the two-body Green function specified by Feynman's diagrammatic expansion. Our method does not rely on the specific form of the electron and hole dispersion laws and is valid for any attractive electron-hole potential. We establish limits of validity of the Wannier (large radius) and Frenkel (small radius) approximations, present accurate data for the intermediate radius excitons, and give evidence for the charge transfer nature of the monopolar exciton in mixed valence materials.
description: 4 pages, 5 figures
Zum Stand von DEAL an der Universität Bielefeld
Creators: name: Pieper, Dirk
Publisher: name: Kolloquium Wissensinfrastruktur
Year: 2021

description: Die Universität Bielefeld nimmt seit 2019 an dem DEAL-Wiley-Vertrag und seit 2020 an dem DEAL-Vertrag mit Springer Nature teil. Der Vortrag zieht auf Basis der Bielefelder Daten in OpenAPC für die abgeschlossenen Publikationsjahre 2019 und 2020 ein erstes Zwischenfazit auch vor dem Hintergrund, dass im kommenden Jahr wichtige Weichenstellungen für die Weiterführung von DEAL anstehen.
description: Kolloquium Wissensinfrastruktur, Wintersemester 2021/22
Additional file 1 of Investigation of synovial fluid lubricants and inflammatory cytokines in the horse: a comparison of recombinant equine interleukin 1 beta-induced synovitis and joint lavage models
Creators: name: Watkins, Amanda
name: Fasanello, Diana
name: Stefanovski, Darko
name: Schurer, Sydney
name: Caracappa, Katherine
name: D’Agostino, Albert
name: Costello, Emily
name: Freer, Heather
name: Rollins, Alicia
name: Read, Claire
name: Su, Jin
name: Colville, Marshall
name: Paszek, Matthew
name: Wagner, Bettina
name: Reesink, Heidi
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1: Supplemental Data 1. Heart rate (HR), temperature (T), respiratory rate (RR), and joint circumference (JC) following IL-1β-induced synovitis or intra-articular lavage. Graphs depicting changes in heart rate, temperature, respiratory rate and joint circumference following induction of synovitis and intra-articular lavage.
Contextualized.pdf
Creators: name: Bogner, Jennifer
Publisher: name: Health Research Alliance
Year: 2021
Subjects: subject: 110317 Physiotherapy
subject: FOS: Clinical medicine
subject: 110321 Rehabilitation and Therapy (excl. Physiotherapy)

description: This article describes the effects of greater proportions of contextualized treatment in inpatient rehabilitation.
Das Discoverysystem VuFind und Alma: Der neue katalog.plus der Universitätsbibliothek Bielefeld
Creators: name: Summann, Friedrich
name: Nold, Artur
name: Broschinski, Christoph
name: Pieper, Dirk
Publisher: name: Kolloquium Wissensinfrastruktur
Year: 2021

description: VuFind wird seit 2010 als Open-Source-Software für bibliothekarische Suchsysteme entwickelt. In Deutschland ist VuFind Grundlage für verschiedene Suchoberflächen wie z.B. für BASE, mehrere Fachinformationsdienste und Katalog- und Discoveryumgebungen. Der Vortrag beschreibt die Nutzung von VuFind in Zusammenhang mit Alma-Publishing und -API-Nutzung.
description: Kolloquium Wissensinfrastruktur, Wintersemester 2021/22
Anisotropy and periodicity in the density distribution of electrons in a quantum-well
Creators: name: Yayon, Y.
name: Rappaport, M.
name: Umansky, V.
name: Bar-Joseph, I.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use low temperature near-field optical spectroscopy to image the electron density distribution in the plane of a high mobility GaAs quantum well. We find that the electrons are not randomly distributed in the plane, but rather form narrow stripes (width smaller than 150 nm) of higher electron density. The stripes are oriented along the [1-10 ] crystal direction, and are arranged in a quasi-periodic structure. We show that elongated structural mounds, which are intrinsic to molecular beam epitaxy, are responsible for the creation of this electron density texture.
description: 10 pages, 3 figures
Additional file 3 of Investigation of synovial fluid lubricants and inflammatory cytokines in the horse: a comparison of recombinant equine interleukin 1 beta-induced synovitis and joint lavage models
Creators: name: Watkins, Amanda
name: Fasanello, Diana
name: Stefanovski, Darko
name: Schurer, Sydney
name: Caracappa, Katherine
name: D’Agostino, Albert
name: Costello, Emily
name: Freer, Heather
name: Rollins, Alicia
name: Read, Claire
name: Su, Jin
name: Colville, Marshall
name: Paszek, Matthew
name: Wagner, Bettina
name: Reesink, Heidi
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 3: Supplemental Data 3. Equine gene names, accession numbers, primer sequences and amplicon sizes for qRT-PCR. Table of primers used for gene expression analysis used in this paper.
Structural response to O*-O' and magnetic transitions in orthorhombic perovskites
Creators: name: Van Aken, Bas B.
name: Meetsma, Auke
name: Tomioka, Y.
name: Tokura, Y.
name: Palstra, Thomas T. M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a temperature dependent single crystal x-ray diffraction study of twinned orthorhombic perovskites La1-xCaxMnO3, for x=0.16 and x=0.25. These data show the evolution of the crystal structure from the ferromagnetic insulating state to the ferromagnetic metallic state. The data are modelled in space group Pnma with twin relations based on a distribution of the b axis over three perpendicular cubic axes. The twin model allows full structure determination in the presence of up to six twin fractions using the single crystal x-ray diffraction data.
description: 13 pages, including 13 figures and 2 tables
Market power and the pricing of commodities imported from developing countries: the case of US vanilla bean imports
Creators: name: Rakotoarisoa, Manitra A.
name: Shapouri, Shahla
name: Rakotoarisoa, Manitra A.
name: Shapouri, Shahla
Publisher: name: Unknown
Year: 2001
Subjects: subject: Demand and Price Analysis
subject: International Relations/Trade
subject: Exchange rates
subject: Exports
subject: Imports
subject: Market structure
subject: Prices
subject: Vanilla beans

description: A declining trend in the prices of vanilla beans reduce export earnings of developing country exporters. At the same time, currencies for these developing countries have depreciated. The 'new' trade theories suggest that market structure plays an important role in relating exchange rate devaluations to price declines. This paper investigates the market structure and estimates the impact of exchange rate movements on prices for vanilla beans imported by the USA from five producers of vanilla beans in developing countries. Unlike other studies, the estimation is based on a 'fixed-effects' econometric model derived from the importer's profit equation and the 'Pricing to Market' (PTM) hypothesis. Data are a pooled cross-section and time series covering the period 1967-1997. The results reveal some evidence that US importers of vanilla beans have the market power to apply price discrimination and to adjust import prices in reaction to exchange rate movement vis-a-vis exporters.© 2001 Elsevier Science B.V. All rights reserved.
FEEDBACK AND CRITICISM
Creators: name: Kadirova, Gulnora
Publisher: name: Zenodo
Year: 2024

description: As a teacher, you will come across individuals whom you have to individually stimulate and to whom you must give feedback about their behaviour and learning performance. You should do this from your own subjective viewpoint and describe your own perceptions and emotional reactions. This, and only this, is called feedback. In addition, if you want to initiate a change or need to set limits, then you are exercising criticism. Criticism should not be one-sided and negative, but should show what can be or has to be improved.
Unruh effect universality: emergent conical geometry from density operator
Creators: name: Prokhorov, Georgy Y.
name: Teryaev, Oleg V.
name: Zakharov, Valentin I.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Unruh effect has been investigated from the point of view of the quantum statistical Zubarev density operator in space with the Minkowski metric. Quantum corrections of the fourth order in acceleration to the energy-momentum tensor of real and complex scalar fields, and Dirac field are calculated. Both massless and massive fields are considered. The method for regularization of discovered infrared divergences for scalar fields is proposed. The calculated corrections make it possible to substantiate the Unruh effect from the point of view of the statistical approach, and to explicitly show its universality for various quantum field theories of massless and massive fields. The obtained results exactly coincide with the ones obtained earlier by calculation of the vacuum average of energy-momentum tensor in a space with a conical singularity. Thus, the duality of two methods for describing an accelerated medium is substantiated. One may also speak about the emergence of geometry with conical singularity from thermodynamics. In particular, the polynomiality of the energy-momentum tensor and the absence of higher-order corrections in acceleration can be explicitly demonstrated.
description: 26 pages, 1 figure
Recovering the Initial Condition of our Local Universe from NOG and PSCz Catalogues
Creators: name: Fontanot, Fabio
name: Monaco, Pierluigi
name: Borgani, Stefano
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We apply the ZTRACE algorithm to the optical NOG and infra-red PSCz galaxy catalogues to reconstruct the pattern of primordial fluctuations that have generated our local Universe. We check that the density fields traced by the two catalogues are well correlated, and consistent with a linear relation (either in $δ$ or in log(1+$δ$)) with relative bias (of NOG with respect to PSCz) b_rel = 1.1 $\pm$ 0.1. The relative bias relation is used to fill the optical zone of avoidance at |b| < 20$^\circ$ using the PSCz galaxy density field. We perform extensive testing on simulated galaxy catalogues to optimize the reconstruction. The quality of the reconstruction is predicted to be good at large scales, up to a limiting wavenumber k_lim $\simeq$ 0.4 h/Mpc beyond which all information is lost. We find that the improvement due to the denser sampling of the optical catalogue is compensated by the uncertainties connected to the larger zone of avoidance. The initial conditions reconstructed from the NOG catalogue are found (analogously to those from the PSCz) to be consistent with Gaussian paradigm. We use the reconstructions to produce sets of initial conditions ready to be used for constrained simulations of our local Universe.
description: 17 pages, 16 figures, Latex in the MN style - Accepted for publication by MNRAS
Successive Phase Transitions in a Metal-Ordered Manganite Perovskite YBaMn2O6
Creators: name: Nakajima, T.
name: Kageyama, H.
name: Ueda, Y.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Structural, magnetic and electric properties of a metal-ordered perovskite YBaMn2O6 have been studied by means of powder X-ray diffraction, DSC, magnetic susceptibility, and electric resistivity. It is found that this material undergoes a 1st order structural phase transition at Tc1=520 K, from a pseudo orthorhombic (monoclinic) phase to a pseudo tetragonal (monoclinic) one. Accompanied by this transition, the susceptibility exhibits a sharp drop, where ferromagnetic exchange interaction becomes antiferromagnetic. Furthermore, two more transitions, a metal-insulator transition at Tc2=480 K and an antiferromagnetic ordering at Tc3=200 K, have been observed respectively.
description: 4 pages, 5 figures, proceedings for ISSP8
Practical implementation of a quantum backtracking algorithm
Creators: name: Martiel, Simon
name: Remaud, Maxime
Publisher: name: arXiv
Year: 2019
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Emerging Technologies (cs.ET)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In previous work, Montanaro presented a method to obtain quantum speedups for backtracking algorithms, a general meta-algorithm to solve constraint satisfaction problems (CSPs). In this work, we derive a space efficient implementation of this method. Assume that we want to solve a CSP with $m$ constraints on $n$ variables and that the union of the domains in which these variables take their value is of cardinality $d$. Then, we show that the implementation of Montanaro's backtracking algorithm can be done by using $O(n \log d)$ data qubits. We detail an implementation of the predicate associated to the CSP with an additional register of $O(\log m)$ qubits. We explicit our implementation for graph coloring and SAT problems, and present simulation results. Finally, we discuss the impact of the usage of static and dynamic variable ordering heuristics in the quantum setting.
description: 18 pages, 10 figures
Latin American Agriculture in a World of Trade Agreements
Creators: name: Josling, Tim
name: Paggi, Mechel
name: Wainio, John
name: Yamazaki, Fumiko
name: Josling, Tim
name: Paggi, Mechel
name: Wainio, John
name: Yamazaki, Fumiko
Publisher: name: Unknown
Year: 2014
Subjects: International Relations/Trade
Political Economy

description: Latin American and Caribbean (LAC) countries have been among the most active participants in the negotiation of regional and bilateral FTAs. The countries of the region are members of 73 of the 259 FTAs notified to the WTO as currently in force, with 29 of these agreements containing tariff concessions made to one or more Latin American partners: the remaining 44 are between an LAC member country and a third country. Among LAC countries already linked by an FTA, a large percentage of agricultural tariffs are already duty free. But the progress in this direction seems to have stalled, with continued tensions in MERCOSUR and political difficulties in the Andean Community. Negotiation of the proposed Free Trade Areas of the Americas (FTAA) has been shelved, and the MERCOSUR-EU negotiations are moving at an imperceptible speed. Meanwhile other countries are moving ahead rapidly by negotiating ambitious mega-agreements, particularly the Trans Pacific Partnership (TPP) and the Trans-Atlantic Trade and Investment Partnership (T-TIP). The only LAC countries actively involved in the TPP talks are Mexico, Chile, and Peru. If either or both of these mega-agreements are concluded the impacts on the region could be significant. These impacts include trade diversion and preference erosion in major import markets, as competitors improve their market access. They could also involve the 3 de facto acceptance of regulatory decisions made by the mega-agreement partners. The Latin American strategies toward these potentially significant agreements and the impacts of the TPP and T-TIP on Latin American agriculture have so far gone largely unstudied. Several possible avenues exist for Latin American countries to counter the impact of a TPP and TTIP on agricultural exports. One possible avenue would be to strengthen existing bilateral trade agreements within the region and to rely on multilateral trade negotiations to improve market access in other regions. Another possible strategy would be to link existing multi-country agreements, such as MERCOSUR and the Pacific Alliance, to NAFTA, in effect reviving the idea for a Free Trade Area of the Americas (FTAA) under a different structure. Another possibility would be to complete and expand the scope of the MERCOSUR-EU FTA talks, to include other LAC countries. A fourth possible action would be for those countries that are not yet part of the negotiations to “sign on” to the TPP in so far as it is an “open access” agreement.
Extreme Nonreciprocity with Spatio-Temporally Modulated Metasurfaces
Creators: name: Cardin, Andrew E.
name: Silva, Sinhara R.
name: Vardeny, Shai. R.
name: Padilla, Willie J.
name: Saxena, A.
name: Taylor, Antoinette J.
name: Kort-Kamp, Wilton J. M.
name: Chen, Hou-Tong
name: Dalvit, Diego A. R.
name: Azad, Abul K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Emerging photonic functionalities are mostly governed by the fundamental principle of Lorentz reciprocity. Lifting the constraints imposed by this principle could circumvent deleterious effects that limit the performance of photonic systems. A variety of approaches have recently been explored to break reciprocity, yet most efforts have been limited to confined photonic systems. Here, we propose and experimentally demonstrate a spatio-temporally modulated metasurface capable of extreme breakdown of Lorentz reciprocity. Through tailoring the momentum and frequency harmonic contents of the scattered waves, we achieve dynamical beam steering, reconfigurable focusing, and giant free-space optical isolation exemplifying the flexibility of our platform. We develop a generalized Bloch-Floquet theory which offers physical insights into the demonstrated extreme nonreciprocity, and its predictions are in excellent agreement with experiments. Our work opens exciting opportunities in applications where free-space nonreciprocal wave propagation is desired, including wireless communications and radiative energy transfer.
description: 24 pages, 4 figures
Advanced.pdf
Creators: name: Timpson, Misti
name: Bogner, Jennifer
name: Beaulieu, Cynthia
Publisher: name: Health Research Alliance
Year: 2021
Subjects: subject: 110321 Rehabilitation and Therapy (excl. Physiotherapy)
subject: FOS: Clinical medicine
subject: 110317 Physiotherapy

description: The article describes the findings in regard to the effects of using a greater proportion of advanced therapy in inpatient rehabilitation for traumatic brain injury