cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the Feasibility of Linear Interference Alignment for MIMO Interference Broadcast Channels with Constant Coefficients
Creators: name: Liu, Tingting
name: Yang, Chenyang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we analyze the feasibility of linear interference alignment (IA) for multi-input-multi-output (MIMO) interference broadcast channel (MIMO-IBC) with constant coefficients. We pose and prove the necessary conditions of linear IA feasibility for general MIMO-IBC. Except for the proper condition, we find another necessary condition to ensure a kind of irreducible interference to be eliminated. We then prove the necessary and sufficient conditions for a special class of MIMO-IBC, where the numbers of antennas are divisible by the number of data streams per user. Since finding an invertible Jacobian matrix is crucial for the sufficiency proof, we first analyze the impact of sparse structure and repeated structure of the Jacobian matrix. Considering that for the MIMO-IBC the sub-matrices of the Jacobian matrix corresponding to the transmit and receive matrices have different repeated structure, we find an invertible Jacobian matrix by constructing the two sub-matrices separately. We show that for the MIMO-IBC where each user has one desired data stream, a proper system is feasible. For symmetric MIMO-IBC, we provide proper but infeasible region of antenna configurations by analyzing the difference between the necessary conditions and the sufficient conditions of linear IA feasibility.
description: 14 pages, 3 figures, accepted by IEEE Trans. on Signal Processing
Michaela Fuchs, Untersuchungen zur Ausstattung römischer Theater in Italien und den Westprovinzen des Imperium Romanum
Creators: name: Sturgeon, Mary C.
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Michaela Fuchs, Untersuchungen zur Ausstattung römischer Theater in Italien und den Westprovinzen des Imperium Romanum. Verlag Philipp von Zabern, Mainz 1987. 228 Seiten, 78 Tafeln.
description: Bonner Jahrbücher, Bd. 189.1989: Bonner Jahrbücher
Search And Visualization Of Richly Annotated Corpora With Annis2
Creators: name: Chiarcos, Christian
name: Krause, Thomas
name: Lüdeling, Anke
name: Ritz, Julia
name: Rosenfeld, Viktor
name: Stede, Manfred
name: Zeldes, Amir
name: Zipser, Florian
Publisher: name: Zenodo
Year: 2009
Subjects: ANNIS
AQL
search system
visualization system
search- and visualization system
linguistic data
corpora
corpus
multi-layer corpus
linguistics
corpus linguistic
linguistic
database

description: This poster presents the latest version of ANNIS2, a web browser-based search and

visualization environment designed to access richly annotated corpora with heterogeneous

annotation schemes. Developed within Collaborative Research Centre 632 (SFB 632:

“Information Structure: The Linguistic Means for Structuring Utterances, Sentences and

Texts”), ANNIS (ANNotation of Information Structure) must meet the requirements imposed

by diverse data from partner projects within the Research Centre and beyond.

Since information structure interacts with linguistic phenomena on many levels, the need to

concurrently query and visualize data annotated for syntax, semantics, morphology, prosody,

phonetics, referentiality and lexis, must be addressed, including where the data is multimodal.

For this reason, ANNIS2 supports annotations of tokens, token spans and trees or other DAGs

(directed acyclic graphs), and uses an appropriate query language capable of searching these

structures. Both query language and visualizations are fully Unicode compatible to ensure

support for a wide variety of non-European languages.

The underlying data for the system is annotated using both automatic taggers/parsers and a

small set of manual annotation tools: EXMARaLDA (Schmidt 2004), annotate (Brants &

Plaehn 2000) / Synpathy (www.lat-mpi.eu/tools/synpathy/), MMAX2 (Müller & Strube

2006), RSTTool (O’Donnell 2000) and PALinkA (Orasan 2003). These are then mapped onto

the encoding standard of the SFB, PAULA (Potsdamer AUstauschformat für Linguistische

Annotation / Potsdam Interchange Format for Linguistic Annotation), a stand-off multilevel

XML format, which serves as the basis for further processing. The XML data is compiled into

a relational database scheme, making the system’s backend particularly scalable.
Cramér large deviation expansions for martingales under Bernstein's condition
Creators: name: Fan, Xiequan
name: Grama, Ion
name: Liu, Quansheng
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary 60G42, 60F10, 60E15, Secondary 60F05

description: By using the conjugate distribution technique of Cramér, we obtain some expansions of large deviation probabilities for martingales with differences satisfying the conditional Bernstein's condition. The expansions are of the same order as in the classical Cramér's large deviation result and are therefore optimal.
description: 26 pages
Absence of Luttinger's Theorem due to Zeros in the Single-Particle Green Function
Creators: name: Dave, Kiaran B.
name: Phillips, Philip W.
name: Kane, Charles L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show exactly with an SU(N) interacting model that even if the ambiguity associated with the placement of the chemical potential, $μ$, for a T=0 gapped system is removed by using the unique value $μ(T\rightarrow 0)$, Luttinger's sum rule is violated even if the ground-state degeneracy is lifted by an infinitesimal hopping. The failure stems from the non-existence of the Luttinger-Ward functional for a system in which the self-energy diverges. Since it is the existence of the Luttinger-Ward functional that is the basis for Luttinger's theorem which relates the charge density to sign changes of the single-particle Green function, no such theorem exists. Experimental data on the cuprates are presented which show a systematic deviation from the Luttinger count, implying a breakdown of the electron quasiparticle picture in strongly correlated electron matter.
description: Published version with supplemental material rebutting the recent criticism that our theorem fails if the ground-state degeneracy is lifted
Emilie Riha, Römisches Toilettgerät und medizinische Instrumente aus Augst und Kaiseraugst
Creators: name: Bliquez, Lawrence J.
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Emilie Riha, Römisches Toilettgerät und medizinische Instrumente aus Augst und Kaiseraugst. Mit Beiträgen von M. Joos, J. Schibier und W. B. Stern. Forschungen in Augst 6. Römermuseum Augst, Augst 1986. 188 Seiten, 74 Tafeln.
description: Bonner Jahrbücher, Bd. 189.1989: Bonner Jahrbücher
Stefan Krautschick, Cassiodor und die Politik seiner Zeit
Creators: name: Gruber, Joachim
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Stefan Krautschick, Cassiodor und die Politik seiner Zeit. Habelts Dissertationsdrucke, Reihe Alte Geschichte, Heft 17. Dr. Rudolf Habelt GmbH, Bonn 1983. 202 Seiten.
description: Bonner Jahrbücher, Bd. 189.1989: Bonner Jahrbücher
Ursula Koch, Der Runde Berg bei Urach V
Creators: name: Knaust, Matthias
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Ursula Koch, Der Runde Berg bei Urach V. Die Metallfunde der frühgeschichtlichen Perioden aus den Plangrabungen 1967-198 1. Heidelberger Akademie der Wissenschaften, Kommission für Alamannische Altertumskunde, Schriften Band 10. Carl Winter Universitätsverlag, Heidelberg 1984. Textband mit 275 Seiten und 20 Abbildungen, Tafelband mit 93 Tafeln und 47 Karten.
description: Bonner Jahrbücher, Bd. 189.1989: Bonner Jahrbücher
Isomorphism Invariants for Multivariable C*-Dynamics
Creators: name: Kakariadis, Evgenios T. A.
name: Katsoulis, Elias G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 47L65, 47L75, 46L55, 46L40, 46L89

description: To a given multivariable C*-dynamical system $(A, \al)$ consisting of *-automorphisms, we associate a family of operator algebras $\alg(A, \al)$, which includes as specific examples the tensor algebra and the semicrossed product. It is shown that if two such operator algebras $\alg(A, \al)$ and $\alg(B, \be)$ are isometrically isomorphic, then the induced dynamical systems $(\hat{A}, \hat{\al})$ and $(\hat{B}, \hat{\be})$ on the Fell spectra are piecewise conjugate, in the sense of Davidson and Katsoulis. In the course of proving the above theorem we obtain several results of independent interest. If $\alg(A, \al)$ and $\alg(B, \be)$ are isometrically isomorphic, then the associated correspondences $X_{(A, \al)}$ and $X_{(B, \be)}$ are unitarily equivalent. In particular, the tensor algebras are isometrically isomorphic if and only if the associated correspondences are unitarily equivalent. Furthermore, isomorphism of semicrossed products implies isomorphism of the associated tensor algebras. In the case of multivariable systems acting on C*-algebras with trivial center, unitary equivalence of the associated correspondences reduces to outer conjugacy of the systems. This provides a complete invariant for isometric isomorphisms between semicrossed products as well.
description: 16 pages; changes in the Introduction and in Theorem 5.2
Off-Policy Evaluation of Ranking Policies under Diverse User Behavior
Creators: name: Kiyohara, Haruka
name: Uehara, Masatoshi
name: Narita, Yusuke
name: Shimizu, Nobuyuki
name: Yamamoto, Yasuo
name: Saito, Yuta
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (stat.ML)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Ranking interfaces are everywhere in online platforms. There is thus an ever growing interest in their Off-Policy Evaluation (OPE), aiming towards an accurate performance evaluation of ranking policies using logged data. A de-facto approach for OPE is Inverse Propensity Scoring (IPS), which provides an unbiased and consistent value estimate. However, it becomes extremely inaccurate in the ranking setup due to its high variance under large action spaces. To deal with this problem, previous studies assume either independent or cascade user behavior, resulting in some ranking versions of IPS. While these estimators are somewhat effective in reducing the variance, all existing estimators apply a single universal assumption to every user, causing excessive bias and variance. Therefore, this work explores a far more general formulation where user behavior is diverse and can vary depending on the user context. We show that the resulting estimator, which we call Adaptive IPS (AIPS), can be unbiased under any complex user behavior. Moreover, AIPS achieves the minimum variance among all unbiased estimators based on IPS. We further develop a procedure to identify the appropriate user behavior model to minimize the mean squared error (MSE) of AIPS in a data-driven fashion. Extensive experiments demonstrate that the empirical accuracy improvement can be significant, enabling effective OPE of ranking systems even under diverse user behavior.
description: KDD2023 Research track
Bisimilarity on Basic Process Algebra is in 2-ExpTime (an explicit proof)
Creators: name: Jancar, Petr
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences
subject: F.4.2; F.3.2

description: Burkart, Caucal, Steffen (1995) showed a procedure deciding bisimulation equivalence of processes in Basic Process Algebra (BPA), i.e. of sequential processes generated by context-free grammars. They improved the previous decidability result of Christensen, Hüttel, Stirling (1992), since their procedure has obviously an elementary time complexity and the authors claim that a close analysis would reveal a double exponential upper bound. Here a self-contained direct proof of the membership in 2-ExpTime is given. This is done via a Prover-Refuter game which shows that there is an alternating Turing machine deciding the problem in exponential space. The proof uses similar ingredients (size-measures, decompositions, bases) as the previous proofs, but one new simplifying factor is an explicit addition of infinite regular strings to the state space. An auxiliary claim also shows an explicit exponential upper bound on the equivalence level of nonbisimilar normed BPA processes. The importance of clarifying the 2-ExpTime upper bound for BPA bisimilarity has recently increased due to the shift of the known lower bound from PSpace (Srba, 2002) to ExpTime (Kiefer, 2012).
description: Final version accepted to LMCS
Quantum Matrices by Paths
Creators: name: Casteels, Karel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Algebra (math.QA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 16T30

description: We study, from a combinatorial viewpoint, the quantized coordinate ring of mxn matrices over an infinite field K (also called quantum matrices) and its torus-invariant prime ideals. The first part of this paper shows that this algebra, traditionally defined by generators and relations, can be seen as subalgebra of a quantum torus by using paths in a certain directed graph. Roughly speaking, we view each generator of quantum matrices as a sum over paths in the graph, each path being assigned an element of the quantum torus. The quantum matrices relations then arise naturally by considering intersecting paths. This viewpoint is closely related to Cauchon's deleting-derivations algorithm. The second part of this paper is to apply the paths viewpoint to the theory of torus-invariant prime ideals of quantum matrices. We prove a conjecture of Goodearl and Lenagan that all such prime ideals, when the quantum parameter q is a non-root of unity, have generating sets consisting of quantum minors. Previously, this result was known to hold only for char(K)=0 and q transcendental over Q. Our strategy is to show that the quantum minors in a given torus-invariant ideal form a Grobner basis.
description: Some proofs fixed, expanded or clarified. To appear in Algebra and Number Theory
A remark on the rates of convergence for integrated volatility estimation in the presence of jumps
Creators: name: Jacod, Jean
name: Reiss, Markus
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The optimal rate of convergence of estimators of the integrated volatility, for a discontinuous Itô semimartingale sampled at regularly spaced times and over a fixed time interval, has been a long-standing problem, at least when the jumps are not summable. In this paper, we study this optimal rate, in the minimax sense and for appropriate "bounded" nonparametric classes of semimartingales. We show that, if the $r$th powers of the jumps are summable for some $r\in[0,2)$, the minimax rate is equal to $\min(\sqrt{n},(n\log n)^{(2-r)/2})$, where $n$ is the number of observations.
description: Published in at http://dx.doi.org/10.1214/13-AOS1179 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
A sulfated polysaccharide of Ecklonia cava inhibits the growth of colon cancer cells by inducing apoptosis
Creators: name: Ahn, Ginnae
name: Lee, WonWoo
name: Kim, Kil-Nam
name: Lee, Ji-Hyeok
name: Heo, Soo-Jin
name: Kang, Nalae
name: Lee, Seung-Hong
name: Ahn, Chang-Bum
name: Jeon, You-Jin
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2015
Subjects: Ecklonia cava
sulfated polysaccharides
enzyme-assisted extraction
apoptosis
murine colon cancer cells (CT-26 cells)

description: We investigated anticancer effects of the crude polysaccharides (CPs) isolated from Ecklonia cava enzymatic extracts using AMG, Viscozyme, Protamex, and Alcalase enzyme against a colon cancer cell line, CT26 cells. Among them, the CP of Protamex extract (PCP) contained the highest fucose and sulfated group contents and showed the highest growth inhibitory effect against CT-26 cells. In addition, PCP dose-dependently increased the formation of apoptotic body and the percentage of Sub-G1 DNA contents. Also, PCP activated caspase 9 and PARP as regulating the expressions of Bax and Bcl-2. Moreover, PPP2, a fraction purified from PCP showed the highest growth inhibitory effect against CT 26 cells with the increased fucose and sulfated group contents. The results demonstrate that the isolated SP containing plentiful fucose and sulfated group contents has the anticancer effect on colon cancer cells via regulation of Bcl-2/Bax signal pathway.
description: EXCLI Journal; 14:Doc294; ISSN 1611-2156
Nepaloserica jumlaica Ahrens 1999
Creators: name: Gupta, Devanshu
name: Bhunia, Debika
name: Ahrens, Dirk
name: Chandra, Kailash
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Nepaloserica
Nepaloserica jumlaica

description: Nepaloserica jumlaica Ahrens, 1999
Material examined. 1 ♂ “ Nepal, P: Karnali, D: Humla Simlikot ~ 12 km SE, Ghatte, Yanchu Khola, S, Lumcha, 29°54'24"N, 81°55'08"E, 2920m, 16–18.VI.2022, leg. A. Weigel, 22-#06” (NME).
description: Published as part of Gupta, Devanshu, Bhunia, Debika, Ahrens, Dirk & Chandra, Kailash, 2025, New species and records of Sericinae from India and Nepal (Coleoptera: Scarabaeidae), pp. 371-385 in Zootaxa 5613 (2) on page 382, DOI: 10.11646/zootaxa.5613.2.11, http://zenodo.org/record/15216371
A Survey of Spherically Symmetric Spacetimes
Creators: name: Parry, Alan R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We survey many of the important properties of spherically symmetric spacetimes as follows. We present several different ways of describing a spherically symmetric spacetime and the resulting metrics. We then focus our discussion on an especially useful form of the metric of a spherically symmetric spacetime in polar-areal coordinates and its properties. In particular, we show how the metric component functions chosen are extremely compatible with notions in Newtonian mechanics. We also show the monotonicity of the Hawking mass in these coordinates. As an example, we discuss how these coordinates and the metric can be used to solve the spherically symmetric Einstein-Klein-Gordon equations. We conclude with a brief mention of some applications of these properties.
description: 27 pages, 1 figure, Analysis and Mathematical Physics, 2014
Atomic: An Open-Source Software Platform  For Multi-Level Corpus Annotation
Creators: name: Druskat, Stephan
name: Bierkandt, Lennart
name: Gast, Volker
name: Rzymski, Christoph
name: Zipser, Florian
Publisher: name: Zenodo
Year: 2014
Subjects: Atomic, linguistic editor, Eclipse RCP, plugin, annotation tool, Salt, Pepperlinguistic annotation, annotation

description: This poster presents Atomic, an open-source platform-independent desktop ap- plication for multi-level corpus annotation. Atomic aims at providing the linguistic community with a user-friendly annotation tool and sustainable platform through its focus on extensibility, a generic data model, and compatibility with existing linguistic formats. It is implemented on top of the Eclipse Rich Client Platform, a pluggable Java-based framework for creating client applications. Atomic - as a set of plug- ins for this framework - integrates with the platform and allows other researchers to de- velop and integrate further extensions to the software as needed. The generic graph- based meta model Salt serves as Atomic’s domain model and allows for unlimited annotation levels and types. Salt is also used as an intermediate model in the Pep- per framework for conversion of linguistic data, which is fully integrated into Atomic, making the latter compatible with a wide range of linguistic formats. Atomic pro- vides tools for both less experienced and expert annotators: graphical, mouse-driven editors and a command-line data manipula- tion language for rapid annotation.
description: {"references": ["McAffer, Jeff; Lemieux, Jean-Michel and Aniszczyk, Chris. 2010. Eclipse Rich Client Platform. 2nd edn. Addison-Wesley, Boston.", "Zipser, Florian and Romary, Laurent. 2010. A model oriented approach to the mapping of annotation formats using standards. In: Proceedings of the Workshop on Language Resource and Language Technology Standards, LREC 2010, Malta.", "Zipser, Florian; Zeldes, Amir; Ritz, Julia; Romary, Laurent; Leser, Ulf. 2011. Pepper: Handling a multiverse of formats. In: 33. Jahrestagung der Deutschen Gesellschaft f\u00fcr Sprachwissenschaft, G\u00f6ttingen, Feb 2011."]}
Topological antiferromagnetic phase in a correlated Bernevig-Hughes-Zhang model
Creators: name: Yoshida, Tsuneya
name: Peters, Robert
name: Fujimoto, Satoshi
name: Kawakami, Norio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological properties of antiferromagnetic phases are studied for a correlated topological band insulator by applying the dynamical mean field theory to an extended Bernevig-Hughes-Zhang model including the Hubbard interaction. The calculation of the magnetic moment and the spin Chern number confirms the existence of a non-trivial antiferromagnetic (AF) phase beyond the Hartree-Fock theory. In particular, we uncover the intriguing fact that the topologically non-trivial AF phase is essentially stabilized by correlation effects but not by the Hartree shifts alone. This counterintuitive effect is demonstrated, through a comparison with the Hartree-Fock results, and should apply for generic topological insulators with strong correlations.
description: 6 pages, 5 figures
Gauge theory of topological phases of matter
Creators: name: Froehlich, Juerg
name: Werner, Philipp
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the response of quantum many-body systems to coupling some of their degrees of freedom to external gauge fields. This serves to understand the current Green functions and transport properties of interacting many-body systems. Our analysis leads to a "gauge theory of states of matter" complementary to the well known Landau theory of order parameters. We illustrate the power of our approach by deriving and interpreting the gauge-invariant effective actions of (topological) superconductors, 2D electron gases exhibiting the quantized Hall- and spin-Hall effect, 3D topological insulators, as well as axion electrodynamics. We also use the theory to elucidate the structure of surface modes in these systems.
description: Published version
Resonant scattering of light in a near-black-hole metric
Creators: name: Stadnik, Y. V.
name: Gossel, G. H.
name: Flambaum, V. V.
name: Berengut, J. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that low-energy photon scattering from a body with radius R slightly larger than its Schwarzschild radius r_s resembles black-hole absorption. This absorption occurs via capture to one of the many long-lived, densely packed resonances that populate the continuum. The lifetimes and density of these meta-stable states tend to infinity in the limit r_s -> R. We determine the energy averaged cross-section for particle capture into these resonances and show that it is equal to the absorption cross-section for a Schwarzschild black hole. Thus, a non-singular static metric may trap photons for arbitrarily long times, making it appear completely `black' before the actual formation of a black hole.
description: 6 pages, 4 figures
The efficacy of a Queensland based purchasing training course: Views of participants
Creators: name: Jeffery, Ricki
Publisher: name: CQUniversity
Year: 2022
Subjects: Strategy, management and organisational behaviour not elsewhere classified
Professional education and training

description: This study addresses the degree of satisfaction of participants who have completed purchasing training courses within a Certification System and the extent that the objectives of these courses align with participants' work needs. This research is relevant by contributing to two organisations. It also provides future application to the specific industry in which the research is situated as purchasing processes are similar across private sector, public sector and non profit sector. The development of the research strategy for this study was an iterative process as research questions were developed and refined as part of routine work practices. The choice of methodology was driven by the researcher's desire to meet managers' and business researchers' expectations that problem solving efforts should relate in clear statements of research questions and research objectives. This was important as this research is focused on an investigation where the outcomes provide information concerning a specific training intervention for those in the workforce with purchasing responsibilities. The results from the research provided evidence that people who have completed the courses have recognised that there is both a learning and a career pathway for those with purchasing responsibilities. This recognition is desirable if purchasing, as a function in organisations is to be more strategic in its focus. The training courses of the Certification System meet the needs of purchasing staff and the training has begun to impact on the culture in the public sector. A tangible outcome of this research has been the development of a questionnaire to collect data about courses and the System. This questionnaire has been used in the field and is now available for future use to conduct further studies that can add to the sample selection and further articulate the level of sophistication of the role of purchasing as a strategic function in organisations. The trans disciplinary perspective of this research has offered the prospect of generating relevant knowledge and skills and new ways of solving problems for the purchasing field (CQU 2002). The application of the findings and use of the questionnaire developed as part of the research begin to link the worlds of business, work and education. Whilst the findings from this research are specific to the actual context, they may be used to inform considerations of potential stakeholders.
Stellar haloes of disc galaxies at z~1
Creators: name: Trujillo, Ignacio
name: Bakos, Judit
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Taking advantage of the ultra-deep near-infrared imaging obtained with the Hubble Space Telescope on the Hubble Ultra Deep Field, we detect and explore for the first time the properties of the stellar haloes of two Milky Way-like galaxies at z~1. We find that the structural properties of those haloes (size and shape) are similar to the ones found in the local universe. However, these high-z stellar haloes are approximately three magnitudes brighter and exhibit bluer colours ((g-r)<0.3 mag) than their local counterparts. The stellar populations of z~1 stellar haloes are compatible with having ages <1 Gyr. This implies that the stars in those haloes were formed basically at 1
description: 14 pages, 14 figures. Accepted in MNRAS. Replaced to match the published version
title: Residential child care in England
Creators: name: Stanley, Jonathan
Publisher: name: Strathprints - University of Strathclyde
Year: 2016

description: This article provides a summary of the current context for residential child care in England. It records continually increasing outcomes as evidenced in a new set of Quality Standards by a new inspection framework. Examples are given of the type of expectations now made for homes to evidence safety and specialism whilst retaining the 'golden thread' of 'Think Positive'. Declining income has the potential to affect provision as already seen through the effects of regulation. Solutions are proposed to overcoming what is perceived as the isolation and marginalisation of the sector.
copulaedas: An R Package for Estimation of Distribution Algorithms Based on Copulas
Creators: name: Gonzalez-Fernandez, Yasser
name: Soto, Marta
Publisher: name: arXiv
Year: 2012
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Mathematical Software (cs.MS)
subject: FOS: Computer and information sciences

description: The use of copula-based models in EDAs (estimation of distribution algorithms) is currently an active area of research. In this context, the copulaedas package for R provides a platform where EDAs based on copulas can be implemented and studied. The package offers complete implementations of various EDAs based on copulas and vines, a group of well-known optimization problems, and utility functions to study the performance of the algorithms. Newly developed EDAs can be easily integrated into the package by extending an S4 class with generic functions for their main components. This paper presents copulaedas by providing an overview of EDAs based on copulas, a description of the implementation of the package, and an illustration of its use through examples. The examples include running the EDAs defined in the package, implementing new algorithms, and performing an empirical study to compare the behavior of different algorithms on benchmark functions and a real-world problem.
Analytical holographic superconductors in $AdS_N$ Lifshitz topological black holes
Creators: name: Momeni, D.
name: Myrzakulov, R.
name: Sebastiani, L.
name: Setare, M. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present the analytic Lifshitz solutions for a scalar field model minimally coupled with the abelian gauge field in $N$ dimensions. We also consider the presence of cosmological constant $Λ$. The Lifshitz parameter $z$ appearing in the solution plays the role of the Lorentz breaking parameter of the model. We investigate the thermodynamical properties of the solutions and discuss the energy issue. Furthermore, we study the hairy black hole solutions in which the abelian gauge field breaks the symmetry near the horizon. In the holographic picture, it is equivalent to a second order phase transition. Explicitly we show that there exists a critical temperature which is a function of the Lifshitz parameter $z$. The system below the critical temperature becomes superconductor, but the critical exponent of the model remains the same of the usual holographic superconductors without the higher order gravitational corrections, in agreement with Ginzburg-Landau theories.
description: 27 pages, final version accepted in IJGMMP
Appearance of superconductivity in new BiS2 based layered LaO0.5F0.5BiS2
Creators: name: Awana, V. P. S.
name: Kumar, Anuj
name: Jha, Rajveer
name: Kumar, Shiva
name: Pal, Anand
name: Shruti
name: Saha, J.
name: Patnaik, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report here synthesis, structural, DC magnetization, and transport studies of new BiS2 based layered LaO0.5F0.5BiS2 superconductor [1]. The sample was synthesized by conventional solid state route via vacuum encapsulation technique at 800oC for 12h. LaO0.5F0.5BiS2 crystallizes in tetragonal P4/nmm space group with lattice parameters a = 4.0703(5)Å, c = 13.3902(4)Å. Bulk superconductivity is confirmed with superconducting transition temperature (Tc) of 2.7K by DC magnetization measurements. The Isothermal magnetization (MH) measurements showed closed loops with clear signatures of flux pinning and irreversible behavior. The resistivity measurements confirmed an onset Tc of 2.7K. The magneto-transport ρ(T,H) measurements showed a resistive broadening and decrease in Tc (ρ=0) to lower temperatures with increasing magnetic field. The magnetic phase diagram involving upper critical and irreversibility fields as a function of temperature has been ascertained. Our DC magnetization and electrical transport measurements confirm the appearance of bulk superconductivity in LaO0.5F0.5BiS2 superconductor.
description: 11 pages figures + Text: First observation/approval of LaO/FBiS2 superconductivity: comments/suggestions: awana@mail.nplindia.org
The automatic creation of concept maps from documents written using morphologically rich languages
Creators: name: Zubrinic, Krunoslav
name: Kalpic, Damir
name: Milicevic, Mario
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Concept map is a graphical tool for representing knowledge. They have been used in many different areas, including education, knowledge management, business and intelligence. Constructing of concept maps manually can be a complex task; an unskilled person may encounter difficulties in determining and positioning concepts relevant to the problem area. An application that recommends concept candidates and their position in a concept map can significantly help the user in that situation. This paper gives an overview of different approaches to automatic and semi-automatic creation of concept maps from textual and non-textual sources. The concept map mining process is defined, and one method suitable for the creation of concept maps from unstructured textual sources in highly inflected languages such as the Croatian language is described in detail. Proposed method uses statistical and data mining techniques enriched with linguistic tools. With minor adjustments, that method can also be used for concept map mining from textual sources in other morphologically rich languages.
description: ISSN 0957-4174
Spin correlations in polarizations of P-wave charmonia $χ_{cJ}$ and impact on $J/ψ$ polarization
Creators: name: Shao, Hua-Sheng
name: Chao, Kuang-Ta
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Based on a general form of the effective vertex functions for the decays of P-wave charmonia $\chicj$, angular distribution formulas for the subsequent decays $\chicj\rightarrow \jpsi γ$ and $\jpsi \to μ^+μ^-$ are derived. The formulas are the same as those obtained in a different approach in the literature. Our formulas are expressed in a more general form, including parity violation effects and the full angular dependence of $\jpsi$ and muon in the cascade decay $\chicj\to\jpsiγ\toμ^+μ^-γ$. The $\chicj$ polarization observables are expressed in terms of rational functions of the spin density matrix elements of $\chicj$ production. Generalized rotation-invariant relations for arbitrary integer-spin particles are also derived and their expressions in terms of observable angular distribution parameters are given in the $χ_{c1}$ and $χ_{c2}$. To complement our previous direct-$\jpsi$ polarization result, we also discuss the impact on the observable prompt-$\jpsi$ polarization. As an illustrative application of our angular distribution formulas, we present the angular distributions in terms of the tree-level spin density matrix elements of $χ_{c1}$ and $χ_{c2}$ production in several different frames at the Large Hadron Collider. Moreover, a reweighting method is also proposed to determine the entire set of the production spin density matrix elements of the $χ_{c2}$, some of which disappear or are suppressed for vanishing higher-order multipole effects making the complete extraction difficult experimentally.
description: Version published in PRD, 23 pages, 18 figures
The AGILE monitoring of Cygnus X-3: transient gamma-ray emission and spectral constraints
Creators: name: Piano, G.
name: Tavani, M.
name: Vittorini, V.
name: Trois, A.
name: Giuliani, A.
name: Bulgarelli, A.
name: Evangelista, Y.
name: Coppi, P.
name: Del Monte, E.
name: Sabatini, S.
name: Striani, E.
name: Donnarumma, I.
name: Hannikainen, D.
name: Koljonen, K. I. I.
name: McCollough, M.
name: Pooley, G.
name: Trushkin, S.
name: Zanin, R.
name: Barbiellini, G.
name: Cardillo, M.
name: Cattaneo, P. W.
name: Chen, A. W.
name: Colafrancesco, S.
name: Feroci, M.
name: Fuschino, F.
name: Giusti, M.
name: Longo, F.
name: Morselli, A.
name: Pellizzoni, A.
name: Pittori, C.
name: Pucella, G.
name: Rapisarda, M.
name: Rappoldi, A.
name: Soffitta, P.
name: Trifoglio, M.
name: Vercellone, S.
name: Verrecchia, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the AGILE-GRID monitoring of Cygnus X-3, during the period between November 2007 and July 2009. We report here the whole AGILE-GRID monitoring of Cygnus X-3 in the AGILE "pointing" mode data-taking, to confirm that the gamma-ray activity coincides with the same repetitive pattern of multiwavelength emission and to analyze in depth the overall gamma-ray spectrum by assuming both leptonic and hadronic scenarios. Seven intense gamma-ray events were detected in this period, with a typical event lasting one or two days. These durations are longer than the likely cooling times of the gamma-ray emitting particles, implying we see continuous acceleration rather than the result of an impulsive event such as the ejection of a single plasmoid which then cools as it propagates outwards. Cross-correlating the AGILE-GRID light curve with X-ray and radio monitoring data, we find that the main events of gamma-ray activity have been detected while the system was in soft spectral X-ray states (RXTE/ASM count rate > 3 counts/s), that coincide with local and often sharp minima of the hard X-ray flux (Swift/BAT count rate < 0.02 counts/cm^2/s), a few days before intense radio outbursts. [...] These gamma-ray events may thus reflect a sharp transition in the structure of the accretion disk and its corona, which leads to a rebirth of the microquasar jet and subsequent enhanced radio activity. [...] Finally, we examine leptonic and hadronic emission models for the gamma-ray events and find that both scenarios are valid. In the leptonic model - based on inverse Compton scatterings of mildly relativistic electrons on soft photons from the Wolf-Rayet companion star and from the accretion disk - the emitting particles may also contribute to the overall hard X-ray spectrum, possibly explaining the hard non-thermal power-law tail sometimes seen during special soft X-ray states in Cygnus X-3.
description: Accepted for publication in A&A on July 26, 2012
Quasi-Shadowing for Partially Hyperbolic Diffeomorphisms
Creators: name: Hu, Huyi
name: Zhou, Yunhua
name: Zhu, Yujun
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: A partially hyperbolic diffeomorphism $f$ has quasi-shadowing property if for any pseudo orbit ${x_k}_{k\in \mathbb{Z}}$, there is a sequence of points ${y_k}_{k\in \mathbb{Z}}$ tracing it in which $y_{k+1}$ is obtained from $f(y_k)$ by a motion $τ$ along the center direction. We show that any partially hyperbolic diffeomorphism has quasi-shadowing property, and if $f$ has $C^1$ center foliation then we can require $τ$ to move the points along the center foliation. As applications, we show that any partially hyperbolic diffeomorphism is topologically quasi-stable under $C^0$-perturbation. When $f$ has uniformly compact $C^1$ center foliation, we also give partially hyperbolic diffeomorphism versions of some theorems holden for uniformly hyperbolic systems, such as Anosov closing lemma, cloud lemma and spectral decomposition theorem.
Insight in schizophrenia: Structure and justification of sufferer's illness narratives
Creators: name: John, Michael A
Publisher: name: CQUniversity
Year: 2022
Subjects: Social determinants of health
Other psychology not elsewhere classified

description: Over the last decade, much of the literature on insight in schizophrenia has reflected a biomedical viewpoint whereby insight is represented as a multidimensional entity. Such an observer-privileged perspective stands at odds with positions which also validate a sufferer's meaning-centered illness beliefs. The general aims of the thesis are to investigate the merit of this latter understanding, and consider its usefulness for case management. A pilot study involving twenty two participants was undertaken to (a) examine the dimensionality of an insight questionnaire, (b) examine the structure of illness belief narratives given by participants deemed to be insightful or non-insightful, and (c) provide a qualitative commentary on illness experiences. No underlying dimensional structure of insight was found, and a series of analyses failed to find narrative event differences in the illness stories given by the insight groups. The qualitative commentary suggested that lived experiences are of particular significance to a sufferer and also ground his or her self-representation. These findings suggested, firstly, the lack of relevance of a biomedical construct for a sufferer's self-report, and secondly, the importance of a higher-order appraisal to investigate adequately a sufferer's illness accounts. In response, Experiment Two adopted a hermeneutic analysis, incorporating a structural and a poetics level of evaluation, to investigate the illness explanations of twenty four participants across three time points. The analysis focused specifically on "complexity", "emphasis, and "adjustment" evaluations at a discourse structure level, and conversely, at a poetics level, upon illness and self-representations signified in "turning-point" experiences. The results supported the predictions that (a) sufferers place greater importance upon "everyday" understandings of symptomatic experiences in comparison to their biomedical knowledge and, moreover, (b) turning-points play a pivotal role in framing everyday illness appreciations. A model integrating narrative explanations and the dual cognitive processes thought to underlie insight-awareness of change and judgement of morbidity-is proposed. It is argued that this conceptualisation provides new possibilities for case management practice.
Equal-bin-width histogram versus equal-bin-count histogram
Creators: name: Sulewski, Piotr
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: The histogram has all its bin widths equal to some non-random number arbitrary set by an analyst (EBWH). In the result, particular bin counts are random variables. This paper presents also a histogram that is constructed in a converse manner. Bin counts are all equal to some non-random number arbitrary set by an analyst (EBCH). In the result, particular bin widths are random variables. The first goal of the paper is a choose of constant bin width (of bin numbers k) in the EBWH, which maximize the similarity measure in the Monte Carlo simulation. The second goal is a choose of constant bin count in the EBCH, which maximize the similarity measure in the Monte Carlo simulation. The third goal is to present similarity measures between empirical and theoretical data. The fourth goal is the comparative analysis of two histogram methods by means of the frequency formula. The first additional goal is a tip how to proceed in EBCH when modulo(n,k)≠0. The second additional goal is the software in the form of a Mathcad file with the implementation of EBWH and EBCH.
Non-invasive digital etching of van der Waals semiconductors
Creators: name: Zhou, Jian
name: Zhang, Chunchen
name: Shi, Li
name: Kim, Xiaoqing Chen Tae-Soo
name: Gyeon, Minseung
name: Wang, Jian Chen Jinlan
name: Kang, Linwei Yu Xinran Wang Kibum
name: Orgiu, Emanuele
name: Samorì, Paolo
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Tsukagoshi, Kazuhito
name: Wang, Peng
name: Shi, Yi
name: Li, Songlin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The capability to finely tailor material thickness with simultaneous atomic precision and non-invasivity would be useful for constructing quantum platforms and post-Moore microelectronics. However, it remains challenging to attain synchronized controls over tailoring selectivity and precision. Here we report a protocol that allows for non-invasive and atomically digital etching of van der Waals transition-metal dichalcogenides through selective alloying via low-temperature thermal diffusion and subsequent wet etching. The mechanism of selective alloying between sacrifice metal atoms and defective or pristine dichalcogenides is analyzed with high-resolution scanning transmission electron microscopy. Also, the non-invasive nature and atomic level precision of our etching technique are corroborated by consistent spectral, crystallographic and electrical characterization measurements. The low-temperature charge mobility of as-etched MoS$_2$ reaches up to $1200\,$cm$^{2}\cdot$V$^{-1}\cdot$s$^{-1}$, comparable to that of exfoliated pristine counterparts. The entire protocol represents a highly precise and non-invasive tailoring route for material manipulation.
description: 46 pages, 4 figures, with SI
Phantom crossing and quintessence limit in extended nonlinear massive gravity
Creators: name: Saridakis, Emmanuel N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the cosmological evolution in a universe governed by the extended, varying-mass, nonlinear massive gravity, in which the graviton mass is promoted to a scalar-field. We find that the dynamics, both in flat and open universe, can lead the varying graviton mass to zero at late times, offering a natural explanation for its hugely-constrained observed value. Despite the limit of the scenario towards standard quintessence, at early and intermediate times it gives rise to an effective dark energy sector of a dynamical nature, which can also lie in the phantom regime, from which it always exits naturally, escaping a Big-Rip. Interestingly enough, although the motivation of massive gravity is to obtain an IR modification, its varying-mass extension in cosmological frameworks leads to early and intermediate times modification instead.
description: 16 pages, 2 figures, version published at Class.Quant.Grav
Hofstadter problem in higher dimensions
Creators: name: Kimura, Taro
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate some generalizations of the Hofstadter problem to higher dimensions with Abelian and non-Abelian gauge field configurations. We numerically show the hierarchical structure in the energy spectra with several lattice models. It is also pointed out the equivalence betwee the π-flux state and the staggered formalism of Dirac fermion.
description: 1+15 pages, 2 figures; minor corrections, references added