cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An Analytic, Fully Relativistic Framework for Tidal Disruption Event Streams in Schwarzschild Geometry
Creators: name: Dittmann, Alexander J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present an analytic and fully relativistic framework for studying the self-intersection of tidal disruption event (TDE) streams, restricting ourselves to the Schwarzschild spacetime. By taking advantage of the closed-form solution to the geodesic equations in the Schwarzschild metric, we calculate properties of the self-intersection without numerically evaluating the geodesic equations or making any post-Newtonian approximations. Our analytic treatment also facilitates geometric definitions of the orbital semi-major axis and eccentricity, as opposed to Newtonian formulas which lead to unphysical results for highly-relativistic orbits. Combined with assumptions about energy dissipation during the self-intersection shock, our framework enables the calculation of quantities such as the fraction of material unbound during the self-intersection shock, and the characteristic semi-major axes and eccentricities of the material which remains in orbit after the collision. As an example, we calculate grids of post-intersection properties in stellar and supermassive black hole (SMBH) masses for disruptions of main sequence stars, identifying regions where no material is ejected during self intersection (e.g. SMBH mass $\lesssim 5\times10^6\, {\rm M_\odot}$ for $1\,{\rm M_\odot}$ stars disrupted at the tidal radius), potentially explaining the TDEs observed by SGR/eROSITA which are visible in X-rays but not optical wavelengths. We also identify parameters for which the post-intersection accretion flow has low eccentricity ($e\lesssim0.6$), and find that the luminosity generated by self-intersection shocks only agrees with observed trends in the relationship between light curve decay timescales and peak luminosities over a narrow range of SMBH masses.
description: 12 pages, 12 figures, submitted to MNRAS. Comments welcome
The galaxy of Coxeter groups
Creators: name: Rego, Yuri Santos
name: Schwer, Petra
Publisher: name: arXiv
Year: 2022
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F55

description: In this paper we introduce the galaxy of Coxeter groups -- an infinite dimensional, locally finite, ranked simplicial complex which captures isomorphisms between Coxeter systems. In doing so, we would like to suggest a new framework to study the isomorphism problem for Coxeter groups. We prove some structural results about this space, provide a full characterization in small ranks and propose many questions. In addition we survey known tools, results and conjectures. Along the way we show profinite rigidity of triangle Coxeter groups -- a result which is possibly of independent interest.
description: 30 pages, 6 figures. v2: Incorporated referee's suggestions; Corrected a mistake in the proof of Theorem 4.25 (formerly 4.24), improved other proofs and text; v3: Corrected a few typos, final version. (Journal of Algebra (2023), in press.)
The structure of accreted neutron star crust
Creators: name: Horowitz, C. J.
name: Berry, D. K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using molecular dynamics simulations, we determine the structure of neutron star crust made of rapid proton capture nucleosynthesis material. We find a regular body centered cubic lattice, even with the large number of impurities that are present. Low charge $Z$ impurities tend to occupy interstitial positions, while high $Z$ impurities tend to occupy substitutional lattice sites. We find strong attractive correlations between low $Z$ impurities that could significantly increase the rate of pycnonuclear (density driven) nuclear reactions. The thermal conductivity is significantly reduced by electron impurity scattering. Our results will be used in future work to study the effects of impurities on mechanical properties such as the shear modulus and breaking strain.
description: 7 pages, 9 figures, added A values to table I, version as published
Quantum theory of spontaneous emission in multilayer dielectric structures
Creators: name: Creatore, Celestino
name: Andreani, Lucio Claudio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present a fully quantum-electrodynamical formalism suitable to evaluate the spontaneous emission rate and pattern from a dipole embedded in a non-absorbing and lossless multilayer dielectric structure. In the model here developed the electromagnetic field is quantized by a proper choice of a complete and orthonormal set of classical spatial modes, which consists of guided and radiative (partially and fully) states. In particular, by choosing a set of radiative states characterized by a single outgoing component, we get rid of the problem related to the quantum interference between different outgoing modes, which arises when the standard radiative basis is used to calculate spontaneous emission patterns. After the derivation of the local density of states, the analytical expressions for the emission rates are obtained within the framework of perturbation theory. First we apply our model to realistic Silicon-based structures such as a single Silicon/air interface and a Silicon waveguide in both the symmetric and asymmetric configurations. Then, we focus on the analysis of the spontaneous emission process in a silicon-on-insulator (SOI) Slot waveguide (a 6 layers model structure) doped with erbium ions (emitting at the telecom wavelength). In this latter case we find a very good agreement with the experimental evidence [M. Galli et al., Appl. Phys. Lett. 89, 241114 (2006)] of an enhanced TM/TE photoluminescence signal. Hence, this model is relevant to study the spontaneous emission in Silicon-based multilayer structures which nowadays play a fundamental role for the development of highly integrated multifunctional devices.
description: 36 pages, 13 figures
AirVO: An Illumination-Robust Point-Line Visual Odometry
Creators: name: Xu, Kuan
name: Hao, Yuefan
name: Yuan, Shenghai
name: Wang, Chen
name: Xie, Lihua
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This paper proposes an illumination-robust visual odometry (VO) system that incorporates both accelerated learning-based corner point algorithms and an extended line feature algorithm. To be robust to dynamic illumination, the proposed system employs the convolutional neural network (CNN) and graph neural network (GNN) to detect and match reliable and informative corner points. Then point feature matching results and the distribution of point and line features are utilized to match and triangulate lines. By accelerating CNN and GNN parts and optimizing the pipeline, the proposed system is able to run in real-time on low-power embedded platforms. The proposed VO was evaluated on several datasets with varying illumination conditions, and the results show that it outperforms other state-of-the-art VO systems in terms of accuracy and robustness. The open-source nature of the proposed system allows for easy implementation and customization by the research community, enabling further development and improvement of VO for various applications.
Tour Guiding Familiarization: An Experiential Learning towards Tour Activity Enhancement
Creators: name: Coronado, Lito
name: Baclit, Ma. Christina Antonnette B.
Publisher: name: figshare
Year: 2021
Subjects: Tourism management
Tourism marketing
Tourism resource appraisal
Tourist behaviour and visitor experience
Tourism forecasting

description: The purpose of this study was to determine the overall perception of the 3rd year Tourism Management students on the Batis Aramin, Lucban, Quezon Tour by means of establishing the perceived value in experiential learning, identifying the most valuable activity, and how these affect their learning as Tourism students. This is a phenomenological study that allowed the respondents to fully express and expound on their lived experiences during the tour. The data were gathered using structured interview and focus group discussion to allow the respondents to freely narrate their experiences. They were pre-selected employing purposive sampling from those who actively participated in all the activities. Using thematic analysis, most of the responses revealed that students learn better when provided with “hands-on” and allowed to observe and collect a wide range of information. It was evidenced by the numerous responses in this study that the students learned the concrete experience of tour guiding and reflective observation about what they have learned during the tour. This study underscores the importance of allowing the students to become reflective learners and that taking into consideration of the students’ feedback constitutes a significant role in their learning and improvement of the tour guiding program of the school.
Heavy Flavor Production and Energy Loss with Two-Particle Correlations at PHENIX
Creators: name: Engelmore, Tatia
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Heavy quarks are a valuable probe of the hot, dense medium created in a heavy ion collision, and are an important test of proposed mechanisms of energy loss. It was discovered that single non-photonic electrons are suppressed at a similar level to light hadrons, implying a comparable level of energy loss between light and heavy partons. Because theory has had a difficult time explaining the level of heavy quark energy loss, it is crucial to better understand charm and bottom suppression. Electron-hadron correlations have been used at PHENIX to study heavy flavor in both p+p and Au+Au collisions. In p+p the ratio of charm to bottom production has been measured using mass correlations through a partial reconstruction of the D meson. Electron-hadron angular correlations have also been used to study medium modification of heavy flavor, and we see hints of energy loss effects. A complementary study of correlated electron-muon pairs provides a clean measurement of heavy flavor production in a rapidity range not yet studied.
description: 4 pages, 3 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee
title: Exil Großbritannien - Brief von Esther Simpson (Society for the Protection of Science and Learning) an Josef Steindl
Creators: name: Esther, Simpson
Year: 2018

description: Titel fingiert. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
description: Kopie, Typoskript, 1 Seite
On the Poisson Stability to Study a Fourth-Order Dynamical System with Quadratic Nonlinearities
Creators: name: Pchelintsev, Alexander N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: Numerical Analysis (math.NA)
subject: Chaotic Dynamics (nlin.CD)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 34D45

description: This article discusses the search procedure for the Poincaré recurrences to classify solutions on an attractor of a fourth-order nonlinear dynamical system using a previously developed high-precision numerical method. For the resulting limiting solution, the Lyapunov exponents are calculated using the modified Benettin's algorithm to study the stability of the found regime and confirm the type of attractor.
description: Mathematics, 9:17 (2021), 2057
title: Exil Großbritannien - Brief von Josef Steindl an "Society for the Protection of Science and Learning"
Creators: name: Steindl, Josef
Year: 2018

description: Titel fingiert - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
description: Kopie, Typoskript, 1 Seite
title: Exil Großbritannien - Brief von Esther Simpson (Society for the Protection of Science and Learning) an Josef STeindl
Creators: name: Simpson, Esther
Year: 2018

description: Titel fingiert. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
description: Kopie, Typoskript, 1 Seite
title: Exil Großbritannien - Brief von Tracy B. Kittredge (Rockefeller Foundation) an Josef Steindl
Creators: name: Kittredge, Tracy B.
Year: 2018

description: Titel fingiert - Entstehungsort vermutlich Paris . - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
title: Exil Großbritannien - Brief von Esther Simpson (Society for the Protection of Science and Learning an Alexander Dunlop Lindsay (Balliol College Oxford)
Creators: name: Simpson, Esther
Year: 2018

description: Titel fingiert, - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries
description: Kopie, Typoskript, 1 Seite
Legendrian contact homology and nondestabilizability
Creators: name: Shonkwiler, Clayton
name: Vela-Vick, David Shea
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 57R17, 57M25, 53D12, 53D40

description: We provide the first example of a Legendrian knot with nonvanishing contact homology whose Thurston-Bennequin invariant is not maximal.
description: 12 pages, 2 figures
Efficient Conditionally Invariant Representation Learning
Creators: name: Pogodin, Roman
name: Deka, Namrata
name: Li, Yazhe
name: Sutherland, Danica J.
name: Veitch, Victor
name: Gretton, Arthur
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We introduce the Conditional Independence Regression CovariancE (CIRCE), a measure of conditional independence for multivariate continuous-valued variables. CIRCE applies as a regularizer in settings where we wish to learn neural features $φ(X)$ of data $X$ to estimate a target $Y$, while being conditionally independent of a distractor $Z$ given $Y$. Both $Z$ and $Y$ are assumed to be continuous-valued but relatively low dimensional, whereas $X$ and its features may be complex and high dimensional. Relevant settings include domain-invariant learning, fairness, and causal learning. The procedure requires just a single ridge regression from $Y$ to kernelized features of $Z$, which can be done in advance. It is then only necessary to enforce independence of $φ(X)$ from residuals of this regression, which is possible with attractive estimation properties and consistency guarantees. By contrast, earlier measures of conditional feature dependence require multiple regressions for each step of feature learning, resulting in more severe bias and variance, and greater computational cost. When sufficiently rich features are used, we establish that CIRCE is zero if and only if $φ(X) \perp \!\!\! \perp Z \mid Y$. In experiments, we show superior performance to previous methods on challenging benchmarks, including learning conditionally invariant image features.
description: ICLR 2023
title: Exil Großbritannien - Brief von Josef Steindl an Balliol College, Oxford
Creators: name: Steindl, Josef
Year: 2018

description: Titel fingiert. - Unterzeichnet mit Joseph Steindl. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries
description: Kopie, handschriftlich verfasst, 1 Seite
Nearly isotropic upper critical fields in a SrFe$_{1.85}$Co$_{0.15}$As$_{2}$ single crystal
Creators: name: Khim, Seunghyun
name: Kim, Jun Sung
name: Kim, Jae Wook
name: Lee, Suk Ho
name: Balakirev, F. F.
name: Bang, Yunkyu
name: Kim, Kee Hoon
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study temperature dependent upper critical field $H_{\rm c2}$ of a SrFe$_{1.85}$Co$_{0.15}$As$_{2}$ single crystal (\textit{T$_c$}=20.2 K) along \textit{ab}-plane and \textit{c}-axis through resistivity measurements up to 50 T. For the both crystalline directions, $H_{\rm c2}$ becomes nearly isotropic at zero temperature limit, reaching $\sim$ 48 T. The temperature dependence of the $H_{\rm c2}$ curves is explained by interplay between orbital and Pauli limiting behaviors combined with the two band effects.
description: Proceedings of M2S-IX, Tokyo 2009
Supernova Siblings and their Parent Galaxies in the Zwicky Transient Facility Bright Transient Surve
Creators: name: Graham, M. L.
name: Fremling, C.
name: Perley, D. A.
name: Biswas, R.
name: Phillips, C. A.
name: Sollerman, J.
name: Nugent, P. E.
name: Nance, S.
name: Dhawan, S.
name: Nordin, J.
name: Goobar, A.
name: Miller, A.
name: Neill, J. D.
name: Hall, X. J.
name: Hankins, M. J.
name: Duev, D. A.
name: Kasliwal, M. M.
name: Rigault, M.
name: Bellm, E. C.
name: Hale, D.
name: Mróz, P.
name: Kulkarni, S. R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Supernova (SN) siblings -- two or more SNe in the same parent galaxy -- are useful tools for exploring progenitor stellar populations as well as properties of the host galaxies such as distance, star formation rate, dust extinction, and metallicity. Since the average SN rate for a Milky Way-type galaxy is just one per century, a large imaging survey is required to discover an appreciable sample of SN siblings. From the wide-field Zwicky Transient Facility (ZTF) Bright Transient Survey (BTS; which aims for spectroscopic completeness for all transients which peak brighter than $r{
description: 14 pages, 4 tables, 7 figures, accepted to MNRAS
Composite metamaterials with dual-band magnetic resonances in the terahertz frequency regime
Creators: name: Li, Ming
name: Wen, Zhenchao
name: Fu, Jinxin
name: Fang, Xu
name: Dai, Yaomin
name: Liu, Rongjuan
name: Han, Xiufeng
name: Qiu, Xianggang
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Composite metamaterials(CMMs) combining a subwavelength metallic hole array (i.e. one-layer fishnet structure) and an array of split-ring resonators(SRRs) on the same board are fabricated with gold films on silicon wafer. Transmission measurements of the CMMs in the terahertz range have been performed. Dual-band magnetic resonances, namely, a LC resonance at 4.40 THz and an additional magnetic resonance at 8.64 THz originating from the antiparallel current in wire pairs in the CMMs are observed when the electrical field polarization of the incident light is parallel to the gap of the component SRR. The numerical simulations agree well with the experimental results and further clarify the nature of the dual-band magnetic resonances.
description: 4 figures, 14 pages
title: Exil Großbritannien - Brief von George Douglas Howard Cole (Balliol College, Oxford) an Esther Simpson (Society for the Protection of Science and Learning)
Creators: name: Cole, George D. H.
Year: 2018

description: Titel fingiert. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries
description: Kopie, Brief, handschriftlich, 2 Seiten
Measurements of high-pT probes in heavy ion collisions at CMS
Creators: name: Veres, Gábor I.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The capabilities of the CMS detector at the LHC will be described for measuring high-pT hadrons, photons and jets in heavy ion collisions. Detailed simulations of various studies planned with the CMS apparatus, including charged particle tracking, jet reconstruction using calorimetry, dimuon and isolated photon detection and the measurement of in-medium fragmentation functions using high-pT photon-jet correlations will be discussed.
description: 4 pages, 5 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee, USA
title: Exil Großbritannien - Brief von Esther Simpson (Society for the Protection of Science and Learning) an George Douglas Howard Cole (Balliol College, Oxford)
Creators: name: Simpson, Esther
Year: 2018

description: Titel fingiert. - Mit Bleistift angebrachte Anmerkung "Steindl". - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
description: Kopie, Typoskript, 1 Seite
Application of Hierarchical Temporal Memory Theory for Document Categorization
Creators: name: Shah, Deven
name: Ghate, Pinak
name: Paranjape, Manali
name: Kumar, Amit
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The current work intends to study the performance of the Hierarchical Temporal Memory(HTM) theory for automated classification of text as well as documents. HTM is a biologically inspired theory based on the working principles of the human neocortex. The current study intends to provide an alternative framework for document categorization using the Spatial Pooler learning algorithm in the HTM Theory. As HTM accepts only a stream of binary data as input, Latent Semantic Indexing(LSI) technique is used for extracting the top features from the input and converting them into binary format. The Spatial Pooler algorithm converts the binary input into sparse patterns with similar input text having overlapping spatial patterns making it easy for classifying the patterns into categories. The results obtained prove that HTM theory, although is in its nascent stages, performs at par with most of the popular machine learning based classifiers.
description: 6 pages, 3 figures, 2 tables
title: Exil Großbritannien - Brief von Esther Simpson (Society for the Protection of Science and Learning) an Ronald Percy Bell (Balliol College, Oxford)
Creators: name: Simpson, Esther
Year: 2018

description: Titel fingiert. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
description: Kopie, Typoskript, 1 Seite
title: Exil Großbritannien - Brief von Ronald Percy Bell (Balliol College, Oxford) an Esther Simpson (Society for the Protection of Science and Learning)
Creators: name: Bell, Ronald P.
Year: 2018

description: Titel fingiert. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
description: Kopie, Brief, handschriftlich, 1 Seite
Search for dark photons from Higgs boson decays via $ZH$ production with a photon plus missing transverse momentum signature from $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
Creators: name: Atlas Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: This paper describes a search for dark photons ($γ_d$) in proton-proton collisions at $\sqrt{s}=13$ TeV at the Large Hadron Collider (LHC). The dark photons are searched for in the decay of Higgs bosons ($H \to γγ_d$) produced through the $ZH$ production mode. The transverse mass of the system, made of the photon and the missing transverse momentum from the non-interacting $γ_d$, presents a distinctive signature as it peaks near the Higgs boson mass. The results presented use the total Run-2 integrated luminosity of 139 fb$^{-1}$ recorded by the ATLAS detector at the LHC. The dominant reducible background processes are estimated using data-driven techniques. A Boosted Decision Tree technique is adopted to enhance the sensitivity of the search. As no excess is observed with respect to the Standard Model prediction, an observed (expected) upper limit on the branching ratio BR$(H\to γγ_d)$ of 2.28$\%$ (2.82$^{+1.33}_{-0.84}\%$) is set at 95$\%$ CL for massless $γ_d$. For massive dark photons up to 40 GeV, the observed (expected) upper limits on BR$(H\to γγ_d)$ at 95\% confidence level is found within the [2.19,2.52]$\%$ ([2.71,3.11]$\%$) range.
description: 48 pages, author list starting page 31, 14 figures, 10 tables, published in JHEP. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HDBS-2019-13
Mathematical Foundations for a Compositional Account of the Bayesian Brain
Creators: name: Smithe, Toby St Clere
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Artificial Intelligence (cs.AI)
subject: Category Theory (math.CT)
subject: Dynamical Systems (math.DS)
subject: Statistics Theory (math.ST)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This dissertation reports some first steps towards a compositional account of active inference and the Bayesian brain. Specifically, we use the tools of contemporary applied category theory to supply functorial semantics for approximate inference. To do so, we define on the `syntactic' side the new notion of Bayesian lens and show that Bayesian updating composes according to the compositional lens pattern. Using Bayesian lenses, and inspired by compositional game theory, we define fibrations of statistical games and classify various problems of statistical inference as corresponding sections: the chain rule of the relative entropy is formalized as a strict section, while maximum likelihood estimation and the free energy give lax sections. In the process, we introduce a new notion of `copy-composition'.
 On the `semantic' side, we present a new formalization of general open dynamical systems (particularly: deterministic, stochastic, and random; and discrete- and continuous-time) as certain coalgebras of polynomial functors, which we show collect into monoidal opindexed categories (or, alternatively, into algebras for multicategories of generalized polynomial functors). We use these opindexed categories to define monoidal bicategories of cilia: dynamical systems which control lenses, and which supply the target for our functorial semantics. Accordingly, we construct functors which explain the bidirectional compositional structure of predictive coding neural circuits under the free energy principle, thereby giving a formal mathematical underpinning to the bidirectionality observed in the cortex. Along the way, we explain how to compose rate-coded neural circuits using an algebra for a multicategory of linear circuit diagrams, showing subsequently that this is subsumed by lenses and polynomial functors.
description: DPhil thesis, as accepted by the University of Oxford. Comments most welcome
title: Exil Großbritannien - Brief von Esther Simpson (Society for Protection of Science and Learning) an Ronald Percy Bell (Balliol College, Oxford)
Creators: name: Simpson, Esther
Year: 2018

description: Titel fingiert. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
description: Kopie, Typoskript, 1 Seite
Low regularity well-posedness of KP-I equations: the three-dimensional case
Creators: name: Herr, Sebastian
name: Sanwal, Akansha
name: Schippa, Robert
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper, low regularity local well-posedness results for the Kadomtsev--Petviashvili--I equation posed in spatial dimension $d =3$ are proved. Periodic, non-periodic and mixed settings as well as generalized dispersion relations are considered. In the weak dispersion regime, these initial value problems show a quasilinear behavior so that bilinear and energy estimates on frequency dependent time scales are used in the analysis.
description: 36 pages
title: Exil Großbritannien - Brief von Ronald Percy Bell (Balliol College, Oxford) an Esther Simpson (Society for the Protection of Science and Learning)
Creators: name: Bell, Ronald P.
Year: 2018

description: Titel fingiert. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries
description: Kopie, Brief, handschriftlich, 1 Seite
title: Exil Großbritannien - Brief von Josef Steindl an Society for the Protection of Science and Learning.
Creators: name: Steindl, Josef
Year: 2018

description: Titel fingiert. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries
description: Kopie, Typoskript, 1 Seite
title: Exil Großbritannien - Brief von Ilse J. Ursell (Society for the Protection of Science and Learning) an Josef Steindl
Creators: name: Ursell, Ilse J.
Year: 2018

description: Titeöl fingiert. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
description: Kopie, Typoskript, 1 Seite
PauliComposer: Compute Tensor Products of Pauli Matrices Efficiently
Creators: name: Romero, Sebastián V.
name: Santos-Suárez, Juan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We introduce a simple algorithm that efficiently computes tensor products of Pauli matrices. This is done by tailoring the calculations to this specific case, which allows to avoid unnecessary calculations. The strength of this strategy is benchmarked against state-of-the-art techniques, showing a remarkable acceleration. As a side product, we provide an optimized method for one key calculus in quantum simulations: the Pauli basis decomposition of Hamiltonians.
description: 6 pages, 4 figures
Consistent Histories in Quantum Cosmology
Creators: name: Craig, David A.
name: Singh, Parampreet
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We illustrate the crucial role played by decoherence (consistency of quantum histories) in extracting consistent quantum probabilities for alternative histories in quantum cosmology. Specifically, within a Wheeler-DeWitt quantization of a flat Friedmann-Robertson-Walker cosmological model sourced with a free massless scalar field, we calculate the probability that the univese is singular in the sense that it assumes zero volume. Classical solutions of this model are a disjoint set of expanding and contracting singular branches. A naive assessment of the behavior of quantum states which are superpositions of expanding and contracting universes may suggest that a "quantum bounce" is possible i.e. that the wave function of the universe may remain peaked on a non-singular classical solution throughout its history. However, a more careful consistent histories analysis shows that for arbitrary states in the physical Hilbert space the probability of this Wheeler-DeWitt quantum universe encountering the big bang/crunch singularity is equal to unity. A quantum Wheeler-DeWitt universe is inevitably singular, and a "quantum bounce" is thus not possible in these models.
description: To appear in Foundations of Physics special issue on quantum foundations
Stochastic optimization of a cold atom experiment using a genetic algorithm
Creators: name: Rohringer, Wolfgang
name: Buecker, Robert
name: Manz, Stephanie
name: Betz, Thomas
name: Koller, Christian
name: Goebel, Martin
name: Perrin, Aurelien
name: Schmiedmayer, Joerg
name: Schumm, Thorsten
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We employ an evolutionary algorithm to automatically optimize different stages of a cold atom experiment without human intervention. This approach closes the loop between computer based experimental control systems and automatic real time analysis and can be applied to a wide range of experimental situations. The genetic algorithm quickly and reliably converges to the most performing parameter set independent of the starting population. Especially in many-dimensional or connected parameter spaces the automatic optimization outperforms a manual search.
description: 4 pages, 3 figures
Evolution of a pairing-induced pseudogap from the superconducting gap of (Bi,Pb)2Sr2CuO6
Creators: name: Nakayama, K.
name: Sato, T.
name: Sekiba, Y.
name: Terashima, K.
name: Richard, P.
name: Takahashi, T.
name: Kudo, K.
name: Okumura, N.
name: Sasaki, T.
name: Kobayashi, N.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed an ultrahigh-resolution angle-resolved photoemission spectroscopy study of slightly-overdoped (Bi,Pb)2Sr2CuO6 to elucidate the origin of pseudogap. By using a newly developed xenon-plasma light source, we determined the comprehensive momentum and temperature dependences of the superconducting gap and the pseudogap. We found that the antinodal pseudogap persists far above the superconducting transition temperature and is smoothly connected to the nodal gap. The characteristic temperature of the pseudogap scales well with the superconducting-gap size irrespective of the momentum location. The present experimental results point to the pairing origin of the pseudogap.
description: 4 pages, 3 figures, to appear in PRL
title: Exil Großbritannien - Brief von Alexander Dunlop Lindsay (Balliol College, Oxford) an Aliens Department of the Home Office, Stanley House, London
Creators: name: Lindsay, Alexander Dunlop
Year: 2018

description: Titel fingiert. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
description: Kopie, Typoskript, 1 Seite
title: Exil Großbritannien - Brief von Aliens Department, Home Office (Stanley House, London) an Alexander Dunlop Lindsay (Balliol College, Oxford)
Creators: name: :Unkn
Year: 2018

description: Titel fingiert. - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
description: Kopie, Typoskript, 1 Seite
Bogoliubov compensation principle in the electro-weak interaction: value of the gauge constant, muon g-2 anomaly, predictions for Tevatron and LHC
Creators: name: Arbuzov, Boris A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We apply Bogoliubov compensation principle to the gauge electro-weak interaction to demonstrate a spontaneous generation of anomalous three-boson gauge invariant effective interaction. The non-trivial solution of compensation equations uniquely defines values of parameters of the theory and the form-factor of the anomalous interaction. The contribution of this interaction to running EW coupling $α_{ew}(p^2)$ gives its observable value $α_{ew}(M_W^2)=0.0374$ in satisfactory agreement to the experiment. The anomalous three-boson interaction gives natural explanation of the well-known discrepancy in muon $g-2$. The implications for EW studies at Tevatron and LHC are briefly discussed.
description: 14 pages, 9 figures, 2 tables, typos corrected
The Rohlin property for inclusions of $C^*$-algebras with a finite Watatani index
Creators: name: Osaka, Hiroyuki
name: Kodaka, Kazunori
name: Teruya, Tamotsu
Publisher: name: arXiv
Year: 2010
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L55; 46L35

description: We introduce notions of the Rohlin property and the approximate representability for inclusions of unital $C^*$-algebras. We investigate a dual relation between the Rohlin property and the approximate representability. We prove that a number of classes of unital $C^*$-algebras are closed under inclusions with the Rohlin property, including: AF algebras, AI algebras, AT algebras, and related classes characterized by direct limit decomposition using semiprojective building blocks. $C^*$-algebras with stable rank one. $C^*$-algebras with real rank zero.
description: We revised the section 4 and its correspondent part in Introduction in the original paper
title: Exil Großbritannien - Brief von E.N. Cooper (Aliens Department, Home Office, Stanley House, London) an Society for the Protection and Learning
Creators: name: Cooper, E. N.
Year: 2018

description: Titel fingiert. - University of Oxford, Bodleian Library, shelfmark: MS SPSL, 442/1, fols.1-4.
description: Kopie, Typoskript, 1 Seite
The shape of disorder broadened Landau subbands in graphene
Creators: name: Zhu, W.
name: Shi, Q. W.
name: Wang, X. R.
name: Chen, J.
name: Hou, J. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Density of states (DOS) of graphene under a high uniform magnetic field and white-noise random potential is numerically calculated. The disorder broadened zero-energy Landau band has a Gaussian shape whose width is proportional to the random potential variance and the square root of magnetic field. Wegner-type calculation is used to justify the results.
An Analysis of an Alternative Pythagorean Expected Win Percentage Model: Applications Using Major League Baseball Team Quality Simulations
Creators: name: Ehrlich, Justin
name: Boudreaux, Christopher
name: Boudreau, James
name: Sanders, Shane
Publisher: name: arXiv
Year: 2021
Subjects: subject: Econometrics (econ.EM)
subject: FOS: Economics and business

description: We ask if there are alternative contest models that minimize error or information loss from misspecification and outperform the Pythagorean model. This article aims to use simulated data to select the optimal expected win percentage model among the choice of relevant alternatives. The choices include the traditional Pythagorean model and the difference-form contest success function (CSF). Method. We simulate 1,000 iterations of the 2014 MLB season for the purpose of estimating and analyzing alternative models of expected win percentage (team quality). We use the open-source, Strategic Baseball Simulator and develop an AutoHotKey script that programmatically executes the SBS application, chooses the correct settings for the 2014 season, enters a unique ID for the simulation data file, and iterates these steps 1,000 times. We estimate expected win percentage using the traditional Pythagorean model, as well as the difference-form CSF model that is used in game theory and public choice economics. Each model is estimated while accounting for fixed (team) effects. We find that the difference-form CSF model outperforms the traditional Pythagorean model in terms of explanatory power and in terms of misspecification-based information loss as estimated by the Akaike Information Criterion. Through parametric estimation, we further confirm that the simulator yields realistic statistical outcomes. The simulation methodology offers the advantage of greatly improved sample size. As the season is held constant, our simulation-based statistical inference also allows for estimation and model comparison without the (time series) issue of non-stationarity. The results suggest that improved win (productivity) estimation can be achieved through alternative CSF specifications.
description: 5 pages
title: Exil Großbritannien - Brief von General Secretary of State (Home Office, Aliens Department) an E. N. Cooper (Under Secretary of State, Home Office, Aliens Department)
Creators: name: :Unkn
Year: 2018

description: Titel fingiert - Online published by kind permission of CARA (Council for At-Risk Academics), former Society for the Protection of Science and Learning (SPSL) and University of Oxford, Bodleian Libraries.
description: Kopie, Typoskript, 1 Seite
Eccentricity fluctuation effects on elliptic flow in relativistic heavy ion collisions
Creators: name: Hirano, Tetsufumi
name: Nara, Yasushi
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study effects of eccentricity fluctuations on the elliptic flow coefficient v_2 at mid-rapidity in both Au+Au and Cu+Cu collisions at sqrt{s_NN}=200 GeV by using a hybrid model that combines ideal hydrodynamics for space-time evolution of the quark gluon plasma phase and a hadronic transport model for the hadronic matter. For initial conditions in hydrodynamic simulations, both the Glauber model and the color glass condensate model are employed to demonstrate the effect of initial eccentricity fluctuations originating from the nucleon position inside a colliding nucleus. The effect of eccentricity fluctuations is modest in semicentral Au+Au collisions, but significantly enhances v_2 in Cu+Cu collisions.
description: 10 pages, 5 figures
title: Der Konjunkturzyklus
Creators: name: Steindl, Josef
Year: 2018

description: Kopie des Sonderdrucks im Zusammenhang mit dem Exil nach Großbritannien zusammen mit dem CV und der Publikationsliste an "Society for the Protection of Science and Learning" abgeschickt.
description: Kopie, Sonderdruck der Zeitschrift, 6 Blätter
IMPACT OF AGRICULTURAL PRACTICES ON BIODIVERSITY OF SOIL INVERTEBRATES, ASSESSMENT THROUGH DNA METABARCODING APPROACH
Creators: name: ALALI, SUMER
Publisher: name: Universit� degli Studi di Milano
Year: 2019

description: In spite of the increase of the organically farmed areas worldwide, it has been always doubted if the organic farming really enhances the soil biodiversity, as the main component in the agroecosystems. This doubt was a target of many studies, trying to reveal the true impact of the applied agricultural practices in the adopted farming strategies, targeting the soil invertebrates as bioindicators of the impact. Unfortunately, the doubt is still, due to the limitations in the sampling and taxonomy of the soil?s invertebrates communities. In the last years, the molecular approaches represent promising methods to overcome these limitations. Thus, the DNA metabarcoding was applied targeting the COI gene in the DNA extracted from soil samples collected in different farming strategies (organic vs non organic), with a different cropping systems (stable meadow vs barley) and different levels in the field from the margin to center, this sampling was performed in three seasons (May, July and October). In addition, the soil properties (pH, texture, N%, C% and C/N ratio) were determined for the selected samples. The illumine MiSeq run was performed and the obtained reads were processed bioinformatically to get the OTU table (Operational Taxonomic Unite). This OTU table was used for the statistical and ecological analysis. Finally, the QBS, a soil quality index depends on the soil inhibiting microarthropods, was calculated by its classic method and estimated based on the obtained molecular data, to check the correlation between the resulted values. Results showed that the DNA metabarcoding approach represents a promising method for the assessment of soil biodiversity in the agroecosystem, but this approach is not able to detect the seasonal changes of the soil invertebrates? communities. Regarding the farming strategies, the farming management as organic or non organic (conventional) did not affect significantly the community structure of soil invertebrates and the biodiversity indices Shannon and Pielou?s evenness, while the species richness was significantly lower in the conventional farm. Soil invertebrates? communities were significantly affected by the crop and the position of the field (as margin or field), and the C/N ratio. For Rotifera and Tardigrada communities? structure were affected by the farming strategy, while insects? communities were affected by the pH of the soil. The role of the margin of the field as a reservoir is increased in the cultivated fields (barley), while in the stable meadows the interactions between the margin and the center of the field are lower. Finally, the soil biological quality is decreased from the margin to the center of the field (of the same field), also decreased in the barley field comparing to the stable meadows. The obtained molecular index mQBS that is developed based on the QBS-ar is a promising approach for the soil biological quality estimation.