cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hardy's Test versus the CHSH Test of Quantum Non-Locality: Fundamental and Practical Aspects
Creators: name: Braun, Daniel
name: Choi, Mahn-Soo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We compare two different tests of quantum non-locality, both in theoretical terms and with respect to a possible implementation in a mesoscopic circuit: Hardy's test [Hardy, Phys. Rev. Lett. \textbf{68}, 2981 (1992)] and the CHSH test, the latter including a recently discovered inequality relevant for experiments with three possible outcomes [Collins and Gisin, J. Phys. A \textbf{37}, 1775 (2004)]. We clarify the geometry of the correlations defined by Hardy's equations with respect to the polytope of causal correlations, and show that these equations generalize to the CHSH inequality if the slightest imperfections in the setup need to be taken into account. We propose a mesoscopic circuit consisting of two interacting Mach-Zehnder interferometers in a Hall bar system for which both Hardy's test and the CHSH test can be realized with a simple change of gate voltages, and evaluate the robustness of the two tests in the case of fluctuating experimental parameters. The proposed setup is remarkably robust and should work for fluctuations of beam splitter angles or phases up to the order of one radian, or single particle loss rates up to about 15%.
description: 26 pages; 3 EPS figures; typos corrected; references added/corrected
Belastung und Beanspruchung von Lehrkräften im Rahmen der Einführung und Umsetzung von Inklusion an Schulen
Creators: name: Burchert, Anja
Publisher: name: Universität Vechta
Year: 2021
Subjects: subject: Belastung
subject: Beanspruchung
subject: Burnout
subject: Lehrkräfte
subject: Inklusion
subject: Schule
subject: DDC Sachgruppen:: 100 - Philosophie und Psychologie
subject: DDC Sachgruppen:: 300 - Sozialwissenschaften

description: Mit der Ratifizierung der UN-Behindertenrechtskonvention (UN-BRK) hat sich Deutschland 2009 zur Umsetzung von Inklusion verpflichtet. Infolge dessen ist eine fundamentale Veränderung im Bildungssystem eingeleitet worden, die nicht zuletzt auch für Lehrkräfte eine enorme Herausforderung und Umstellung in der Schul- und Unterrichtsgestaltung darstellt. Verschiedene Studien belegen, dass unter den bisherigen Arbeitsbedingungen Lehrkräfte belastet und in hohem Maße beansprucht sind (u.a. Käser & Wasch, 2009; Körner, 2003; Schaarschmidt, 2005). Mit der vorliegenden Dissertationsschrift wird daher der Frage nachgegangen, was diese massive Veränderung für das Belastungs- und Beanspruchungserleben bei Lehrkräften bedeutet, welche Aspekte besondere Belastungsquellen darstellen und in welchem Ausmaß Lehrkräfte beansprucht sind. Dabei gilt besonderes Augenmerk vor allem auch darauf, welche inklusionsspezifischen Aspekte im schulischen Arbeitskontext als belastend erlebt werden und das Beanspruchungserleben beeinflussen, umgekehrt aber auch, welche Faktoren gesundheitsförderliche Ressourcen darstellen. Mittels eines quantitativen Forschungsdesigns wurde im Abstand von einem Jahr jeweils eine schriftliche Befragung von Lehrkräften an allgemeinbildenden Schulen in drei Bundesländern durchgeführt, mit dem Ziel das Belastungs- und Beanspruchungserleben sowie die Arbeitsbedingungen nicht nur punktuell, sondern auch im Zeitverlauf zu erfassen und auf mögliche Veränderungen zu prüfen. Darüber hinaus werden durch Kombination von schul- und individualbezogenen Merkmalen wesentliche Faktoren identifiziert, die das Beanspruchungserleben im inklusiven Schulkontext beeinflussen. Die Ergebnisse aus der eigenen Untersuchung werden abschließend kritisch reflektiert sowie in den bisherigen Forschungskontext eingeordnet und diskutiert, aus denen sich Implikationen für die Praxis ableiten lassen.
ICPSR’s Disclosure Risk Guide for Data Depositors
Creators: name: Corden, Gin
name: Eady, Julie
name: Jang, Joy
name: Kirkwood, Michal
name: Reneau, Kyrani
name: Tang, Sandra
Publisher: name: My University
Year: 2022
Subjects: subject: data curation
subject: data disclosure
subject: restricted data
subject: Statistics and Numeric Data
subject: Social Sciences

description: ICPSR implements a disclosure risk review (DRR) of every data and documentation file deposited with us. This guide describes how ICPSR assesses the disclosure risk of a dataset. 2023-12-21 new version of document uploaded.
Sophia Theresa Pemberton : her life and art
Creators: name: Tuele, Nicholas
Publisher: name: University of British Columbia
Year: 2010

description: Sophia Theresa Pemberton was born in 1869 and died in 1959. She was raised in one of the affluent and socially important families of late nineteenth century Victoria, British Columbia. At an early age, Sophie, as she was known throughout her life, received lessons in drawing, painting, and music. In this she was like most young women of her class and upbringing. Unlike her peers Sophie decided to pursue a career as a professional artist and by the early 1880's was seeking artistic training. Sophie excelled in her lessons and was soon established as a promising artist with an international reputation. Her work was known to the critics in Western Canada, England and the capital of the art world - Paris. She exhibited extensively at the Royal Academy, the Salon and in group and individual shows during the last years of the nineteenth century and the first decade of the twentieth century. Her career came to an abrupt end shortly after her first marriage. In the years since her last exhibition as a practising artist she has slipped into semi-obscurity and has been virtually overlooked by the public and in the pages of Canadian Art History. Her modest accomplishments as an artist and her outstanding achievement as the first woman artist to win the Prix Julian, in 1899, are only briefly mentioned in the standard Canadian Art History texts. In searching for the details of Sophie's life I have referred to numerous newspapers and journals of her day. As well, I have benefited from interviews with her two nieces Mrs. A.L. Harvey and Mrs. C. Holmes. Both women, advanced in years, have vivid and detailed memories of their aunt with whom they spent a great deal of time as young women. Finally, I was given access to many diaries and letters of Sophie's by various family members. All of the paintings located for this thesis were found in family collections, the Art Gallery of Greater Victoria and the B.C. Provincial Archives. My thesis will show the reasons for the brevity of Sophie's career, a combination of spouse disapproval, ill health and an unfortunate accident. Possible reasons for the demise of her reputation are given - modest artistic output, changing tastes and the fact that most of her works remained in family collections. Also, a brief artistic analysis shows the range and scope of Sophie's efforts and indicates that, had her career continued, she might well have developed a more highly distinctive and personal artistic statement.
Scaling properties of complex networks: Toward Wilsonian renormalization for complex networks
Creators: name: Ichikawa, Kento
name: Uchida, Masato
name: Tsuru, Masato
name: Oie, Yuji
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Nowadays, scaling methods for general large-scale complex networks have been developed. We proposed a new scaling scheme called "two-site scaling". This scheme was applied iteratively to various networks, and we observed how the degree distribution of the network changes by two-site scaling. In particular, networks constructed by the BA algorithm behave differently from the networks observed in the nature. In addition, an iterative scaling scheme can define a new renormalizing method. We investigated the possibility of defining the Wilsonian renormalization group method on general complex networks and its application to the analysis of the dynamics of complex networks.
description: 4pages, 6 figures, submitted to PHYSCOMNET08
The Effects of Thermal Conduction on the ADAF with a Toroidal Magnetic Field
Creators: name: Abbassi, S.
name: Ghanbari, J.
name: Najjar, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The observation of the hot gas surrounding Sgr $A^*$ and a few other nearby galactic nuclei imply that electron and proton mean free paths are comparable to the gas capture radius. So, the hot accretion flows is likely to proceed under week-collision conditions. Hence, thermal conduction has been suggested as a possible mechanism by which the sufficient extra heating is provided in hot ADAF accretion disks. We consider the effects of thermal conduction in the presence of a toroidal magnetic field in an advection-dominated accretion flow around a compact object. For a steady-state structure of such accretion flows a set of self-similar solutions are presented. We find two types solutions which represent high and slow accretion rate. They have different behaviors with saturated thermal conduction parameter, $ϕ$.
description: Accepted for publication MNRAS
Trapping of Ultracold Atoms in a Hollow-core Photonic Crystal Fiber
Creators: name: Christensen, Caleb A.
name: Will, Sebastian
name: Saba, Michele
name: Jo, Gyu-Boong
name: Shin, Yong-Il
name: Ketterle, Wolfgang
name: Pritchard, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Ultracold sodium atoms have been trapped inside a hollow-core optical fiber. The atoms are transferred from a free space optical dipole trap into a trap formed by a red-detuned gaussian light mode confined to the core of the fiber. We show that at least 5% of the atoms held initially in the free space trap can be loaded into the core of the fiber and retrieved outside.
description: 4 pages, 3 figures, corrected author list, added refs, changed figs, changed content, accepted by PRA
Integrating OPC Data into GSN Infrastructures
Creators: name: Passalacqua, Olivier
name: Benoit, Eric
name: Huget, Marc-Philippe
name: Moreaux, Patrice
Publisher: name: arXiv
Year: 2008
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This paper presents the design and the implementation of an interface software component between OLE for Process Control (OPC) formatted data and the Global Sensor Network (GSN) framework for management of data from sensors. This interface, named wrapper in the GSN context, communicates in Data Access mode with an OPC server and converts the received data to the internal GSN format, according to several temporal modes. This work is realized in the context of a Ph.D. Thesis about the control of distributed information fusion systems. The developed component allows the injection of OPC data, like measurements or industrial processes states information, into a distributed information fusion system deployed in a GSN framework. The component behaves as a client of the OPC server. Developed in Java and based on the Opensaca Utgard, it can be deployed on any computation node supporting a Java virtual machine. The experiments show the component conformity according to the Data Access 2.05a specification of the OPC standard and to the temporal modes.
Universal spaces for manifolds equipped with a closed integral k-form
Creators: name: Le, Hong-Van
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Topology (math.AT)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C10, 53C42

description: In this note we prove that any integral closed k-form $ϕ^k$, $k\ge 3$, on a m-dimensional manifold $M^m$, $m \ge k$, is the restriction of a universal closed k-form $h^k$ on a universal manifold $U^{d(m,k)}$ as a result of an embedding of $M^m$ to $U^{d(m,k)}$.
description: 17 pages, extended version of the second part of previously submitted note math.DG/0603182, containing an appendix written in communication with Kaoru Ono
Statistical mechanics of damage phenomena
Creators: name: Abaimov, S. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This paper applies the formalism of classical, Gibbs-Boltzmann statistical mechanics to the phenomenon of non-thermal damage. As an example, a non-thermal fiber-bundle model with the global uniform (meanfield) load sharing is considered. Stochastic topological behavior in the system is described in terms of an effective temperature parameter thermalizing the system. An equation of state and a topological analog of the energy-balance equation are obtained. The formalism of the free energy potential is developed, and the nature of the first order phase transition and spinodal is demonstrated.
description: Critical point appeared to be a spinodal point
Asymmetric Magnetization Reversal in a Single Exchange-Biased Micro Bar
Creators: name: Gredig, T.
name: Tondra, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The asymmetric magnetization reversal is studied in a single exchange-biased microbar of 1.5 x 13 micrometer with anisotropic magnetoresistance and magnetic force microscopy. The particle has a moment of less than 10^-9 emu and is not accessible with standard magnetometry. The asymmetric hysteresis loop of CoFe/CrMnPt shows a repeatable rotation process, followed by an irreversible nucleation process that is marked by jumps in the magnetoresistance. The induced unidirectional anisotropy enhances the rotation process in one branch of the hysteresis loop, followed by a sped up nucleation process. Imprinted ferromagnetic domain patterns left behind by the antiferromagnet are observed after the nucleation process occurred but before complete saturation is reached.
description: 4 pages, 5 figures
Classifying subcategories of modules over a commutative noetherian ring
Creators: name: Takahashi, Ryo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Commutative Algebra (math.AC)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 13C05, 16D90, 18E30

description: Let R be a quotient ring of a commutative coherent regular ring by a finitely generated ideal. Hovey gave a bijection between the set of coherent subcategories of the category of finitely presented R-modules and the set of thick subcategories of the derived category of perfect R-complexes. Using this isomorphism, he proved that every coherent subcategory of finitely presented R-modules is a Serre subcategory. In this paper, it is proved that this holds whenever R is a commutative noetherian ring. This paper also yields a module version of the bijection between the set of localizing subcategories of the derived category of R-modules and the set of subsets of Spec R which was given by Neeman.
description: 17 pages, to appear in J. Lond. Math. Soc
Yang-Mills bar connections over compact Kähler manifolds
Creators: name: Van Le, Hong
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C55, 53C44, 58E99

description: In this note we introduce a Yang-Mills bar equation on complex vector bundles over compact Hermitian manifolds as the Euler-Lagrange equation for a Yang-Mills bar functional. We show the existence of a non-trivial solution of this equation over compact Kähler manifolds as well as a short time existence of the negative Yang-Mills bar gradient flow. We also show a rigidity of holomorphic connections among a class of Yang-Mills bar connections over compact Kähler manifolds of positive Ricci curvature.
description: 27 pages, some badly changes in notations of the last version has been reversed
La révolte contre le patriarcat dans l’oeuvre de Marie-Claire Blais
Creators: name: Tremblay, Victor
Publisher: name: University of British Columbia
Year: 2010

description: Apres plus de vingt ans consacres a son metier d'ecrivain, Marie-Claire Blais est l'un des piliers du Quebec litteraire contemporain grace a l'orientation sociale significative de son oeuvre. Sa vision du monde ainsi que son style prennent naissance dans des preoccupations per-sonnelles plus ou inoins inconscientes qui aboutissent a un enseignement moral universel. Le but de cette etude est de suivre l'evolution de la conscience creatrice de l'auteur a travers son oeuvre, aussi importait-il d'examiner l'oppression que les institutions sociales et religieuses lui firent subir au cours de sa vie dans sa quete d'identite et d'affirmation comme Quebecoise, femme et lesbienne. Sous la rubrique de "cycle mythique", nous avons range les premiers efforts de l'ecrivain, comprenant sa poesie d'adolescence et les quatre romans qui y font suite. L'analyse de ces oeuvres de jeunesse revele, en effet, par la repetition de metaphores et de formes structurales communes, la presence d'un mythe personnel relie au drame pre-oedipien du rejet maternel. Cette thematique originelle de culpabilite s'amplifie sous l'influence de valeurs traditionnelles. Celles-ci,tout en renforgant l'inferiority quebecoise, demeurent essentiellement misogynes et s'opposent categoriquement a l'homosexualite. Bientot, cependant, l'auteur prend conscience de son alienation, mais, incapable de vivre sa rebellion, elle tente de se liberer par l'ecriture. De ses ecrits du "cycle de revolte", nous avons etudie particulierement "Une Saison dans la vie d'Emmanuel" qui, mieux que les autres, illustre a la fois les trois degres d'alienation precedemment nommes. Par la suite, nous avons analyse rapidement les trois tomes des Manuscrits de Pauline Archange qui constituent le "cycle autobiographique." Au cours de ce cycle, l'auteur se penche sur son passe et sa vocation litteraire. Puis, dans nos considerations sur les romans du "cycle de liberation", nous nous sommes attarde surtout au Loup qui presente l'art et l'amour fraternel comme les solutions ideales au desirde liberie. Entrai-tant de ces deux derniers cycles, nous avons voulu eviter les redites , aussi avons-nous joint l'etude de leurs caracteristiques a une perspective globale et evolutive des structures et themes d'oppression et de re-volte rencontres dans toute l'oeuvre blaisienne. Enfin, en dernier lieu, nous avons relie l'imaginaire de Marie-Claire Blais a une vision mythique globale de l'univers.
title: Resilience and the EU’s External Action Instruments
title: Towards Multiple, Sustained, and Indirect Actions
titleType: Subtitle
Creators: name: Bargués, Pol
name: Cadier, David
name: Gibadło, Lidia
name: Kaca, Elżbieta
name: Morillas, Pol
name: Narbone, Luigi
name: Pirozzi, Nicoletta
name: Terlikowski, Marcin
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: Tags Limited statehood
subject: contested orders
subject: foreign policy
subject: Resilience
subject: EU diplomacy
subject: CSDP
subject: 300 Sozialwissenschaften::320 Politikwissenschaft::320 Politikwissenschaft

description: The EU is increasingly concerned with the diffusion and uncertainty of risks and threats in the neighbourhood, and resilience appears as a useful and pragmatic policy framework to address risks in areas of limited statehood and contested orders. The working paper draws from extensive report analysis and semi-structured interviews with EU officials to examine the diplomatic, economic, and military instruments that the EU mobilizes in a resilience-informed external action. The main contribution is that these instruments are increasingly facilitating resilience through multiple, long-term, and indirect actions. First, instruments have expanded and diversified to undertake as many different actions as possible. Second, they are sustained over long periods of time, even when there are no risks or threats or after peace and stability have been reached. Third, since resilience emerges “from below”, building on societies’ own resources and tools, EU instruments facilitate resilience indirectly, through constant engagement in the neighbourhood.
title: An economic analysis of the empty nest syndrome
title: What the leaving child does matters
titleType: Subtitle
Creators: name: Piper, Alan
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Life Satisfaction
subject: Subjective Well-being
subject: Empty Nest Syndrome
subject: Family
subject: Income
subject: Consumption
subject: Leisure
subject: 300 Sozialwissenschaften::330 Wirtschaft::330 Wirtschaft

description: This study is an empirical investigation of the empty nest syndrome, commonly understood as a situation where there are feelings of loss or loneliness for mothers and/or fathers following the departure of the last child from the family home. This investigation makes use of rich, longitudinal, nationally representative German data to assess whether there is evidence for such a syndrome. Furthermore, the analysis considers the role of two key economic variables: consumption and leisure via the standard economic concept of utility maximisation. The analysis highlights a conflict between what economic theory predicts - more disposable income and a gain of leisure time - and the psychological (and cultural) notion of the lonely, sad empty nester. This conflict is an empirical question and here it is resolved via an assessment of the change in life satisfaction that is reported when parents become empty nesters. Importantly, this investigation also tracks what the last child leaving the household goes on to do: The found reduced life satisfaction seems to be wholly moderated if the last child leaves the nest for the purposes of education, but not if for purposes of employment.
Bioinformatic Analysis of Plasmodium berghei Hypoxanthine-guanine-xanthine phosphoribosyltransferase (HGPRT): a Potential Therapeutic Target
Creators: name: Ali, Nahla O. M.
Publisher: name: Figshare
Year: 2019
Subjects: Molecular Biology

description: Hypoxanthine-guanine-xanthine phosphoribosyltransferase (HGPRT) is
essential for purine nucleotide and nucleic acid synthesis in the malaria
parasite, Plasmodium spp. The gene is annotated as encoding PRTase activity and proposed as
essential for P. berghei survival. The aims of this work were to
investigate the HGPRT structure from P. berghei and to compare the key
features of the enzyme to other PRTases employing computational modeling, and
bioinformatic tools. Bioinformatics was employed to analyze the sequence of P.
berghei HGPRT, and a structural model of the HGPRT was built using comparative
modelling techniques. It was demonstrated that the HGPRT gene of P.
berghei encodes a functional fold of the phosphoribosyltransferase
family. Sequence Analysis showed that the HGPRT is significantly divergent from
equivalent mammalian enzymes. Modelling identified specific features of PbHGPRT
and key residues involved in binding ligands and catalysis.  A model of an open, unliganded form of PbHPRT
was constructed based on sequence homology to P. falciparum, human, Toxoplasma
gondii and Bacillus anthracis HGPRT using the program PHYRE2. The
active site of the open structure is much larger and will be useful for docking
of inhibitors. The P. berghei HGPRT is structurally similar to P.
falciparum HGPRT and other RPTases, but there were significant differences in
the RPTase domain of PbHGPRT and other RPTases.
Effect of different management intensities on natural and human-induced carbon fluxes in a golf course in northern Italy
Creators: name: Zuffa, Daniele <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: AGR/04 Orticoltura e floricoltura

description: Turfgrasses are ubiquitous in urban landscape and their role on carbon (C) cycle is increasing important also due to the considerable footprint related to their management practices. It is crucial to understand the mechanisms driving the C assimilation potential of these terrestrial ecosystems
Several approaches have been proposed to assess C dynamics: micro-meteorological methods, small-chamber enclosure system (SC), chrono-sequence approach and various models.
Natural and human-induced variables influence turfgrasses C fluxes. Species composition, environmental conditions, site characteristics, former land use and agronomic management are the most important factors considered in literature driving C sequestration potential. At the same time different approaches seem to influence C budget estimates.
In order to study the effect of different management intensities on turfgrass, we estimated net ecosystem exchange (NEE) through a SC approach in a hole of a golf course in the province of Verona (Italy) for one year. The SC approach presented several advantages but also limits related to the measurement frequency, timing and duration overtime, and to the methodological errors connected to the measuring system.
Daily CO2 fluxes changed according to the intensity of maintenance, likely due to different inputs and disturbances affecting biogeochemical cycles, combined also to the different leaf area index (LAI). The annual cumulative NEE decreased with the increase of the intensity of management.
NEE was related to the seasonality of turfgrass, following temperatures and physiological activity. Generally on the growing season CO2 fluxes towards atmosphere exceeded C sequestered. The cumulative NEE showed a system near to a steady state for C dynamics.
In the final part greenhouse gases (GHGs) emissions due to fossil fuel consumption for turfgrass upkeep were estimated, pinpointing that turfgrass may result a considerable C source. The C potential of trees and shrubs needs to be considered to obtain a complete budget.
Competing With the Use of Business Model innovation - an Exploratory Case Study of the Journey of Born Global Firms
Creators: name: Johansson, Marlene
name: Abrahamsson, Jan Tony
Publisher: name: Journal of Business Models
Year: 2014

description: Purpose: The purpose of this article is to investigate how business models are used by born global firms to act upon new business opportunities and how they manage business model innovation over time to prosper and grow.

Design/Methodology: The study is based on three exploratory case studies of born global firms in mobile communication, financial services and digital music distribution.

Findings: Three interrelated capabilities to manage business model innovation are articulated in the context of born global firms; sensing capabilities, entrepreneurial capabilities and relational capabilities and four propositions are formulated. We find that business model innovations are used as a tool by maturing born global firms to navigate the value chains and achieve international growth. We further propose that born global need the capabilities to balance different business model designs simultaneously and to manage its business model innovation in a timely manner.

Originality: This article contributes to both the business model literature and research of international entrepreneurship. By putting business model research into the dynamic context of rapidly internationalizing born global firms, we contribute to the field of business model research with findings of how business models are used in the internationalization processes. Certain capabilities are needed to manage business model innovation for born global firms to dynamically use business models as a tool in the international growth overtime.
description: Journal of Business Models, Vol 2 No 1 (2014): Special issue: The business model eruption
Carl Borden and archaeology in British Columbia : an interactive history
Creators: name: Williams, Anne M.
Publisher: name: University of British Columbia
Year: 2010

description: Carl Borden has been designated "Grandfather of B.C. archaeology" (Carlson 1979: 233). I present an aspect of his claim to this title by focusing on his important contribution to the efforts made in the 1950's, 60's and early 70's to provide a forum amenable to the pursuit of archaeological research in British Columbia. My thesis is, therefore, primarily a contribution to the literature which addresses itself to understanding Borden's place in the history of archaeology in British Columbia. As such, it will not only interest those archaeologists and anthropologists who knew and worked with Borden, but also a wider audience of Canadian anthropologists and archaeologists who are concerned with understanding the significance of the persons and institutions discussed in "local histories" within the broader framework of the history of Canadian anthropology. In presenting history, I also engage in its creation. My thesis reflects my self^consciousness in producing an account where Borden's point of yiew Cas expressed in the literature and a series of interviews) and my interpretation of his point of view are negotiated. I call this process of negotiation an :interactive history. It is through this process that I discover an important aspect of the significance of Borden to archaeology in British Columbia. Therefore, it is a process which will be of relevance to those anthropologists interested in the social construction of knowledge. Presenting history and being self-conscious about how we discover history are part of a reflexive approach to furthering an understanding of ourselves and our Western Culture. My thesis advances this approach in two ways. First, by applying the anthropological method of fieldwork, traditionally applied to other cultures, to make a statement about an institution - archaeology in British Columbia - which emerges from my own culture. Second, by confronting this statement and making its formulation explicit.
Multi-frequency solitons in commensurate-incommensurate photonic moiré lattices
Creators: name: Kartashov, Yaroslav V.
name: Ye, Fangwei
name: Konotop, Vladimir V.
name: Torner, Lluis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Other Condensed Matter (cond-mat.other)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We predict that photonic moiré patterns created by two mutually twisted periodic sublattices in quadratic nonlinear media allow the formation of parametric solitons under conditions that are strongly impacted by the geometry of the pattern. The question addressed here is how the geometry affects the joint trapping of multiple parametrically-coupled waves into a single soliton state. We show that above the localization-delocalization transition the threshold power for soliton excitation is drastically reduced relative to uniform media. Also, the geometry of the moiré pattern shifts the condition for phase-matching between the waves to the value that matches the edges of the eigenmode bands, thereby shifting the properties of all soliton families. Moreover, the phase-mismatch bandwidth for soliton generation is dramatically broadened in the moiré patterns relative to latticeless structures.
description: 5 pages, 5 figures, to appear in Physical Review Letters
Quantum walk based search algorithms
Creators: name: Santha, Miklos
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this survey paper we give an intuitive treatment of the discrete time quantization of classical Markov chains. Grover search and the quantum walk based search algorithms of Ambainis, Szegedy and Magniez et al. will be stated as quantum analogues of classical search procedures. We present a rather detailed description of a somewhat simplified version of the MNRS algorithm. Finally, in the query complexity model, we show how quantum walks can be applied to the following search problems: Element Distinctness, Matrix Product Verification, Restricted Range Associativity, Triangle, and Group Commutativity.
description: 16 pages, survey paper
An accretion disc model for quasar optical variability
Creators: name: Li, Shuang-Liang
name: Cao, Xinwu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Some different correlations between optical-UV variability and other quasar properties, such as luminosity, black hole mass and rest-frame wavelength, were discovered. The positive correlation between optical-UV variability amplitude and black hole mass was first found by Wold et al., and this was confirmed by Wilhite et al. We suggest that the accretion disk model can explain these correlations, provided the optical-UV variability is triggered by the change of accretion rate. The disk temperature of accretion discs decreases with increasing black hole mass, which leads to systematical spectral shape difference with black hole mass even if the black hole is accreting at the same rate m_dot (m_dot = M_dot / M_dotEdd). The observed positive correlation between optical-UV variability and black hole mass can be well reproduced by our model calculations, if the mean accretion rate m_dot0 ~ 0.1 with variation of m_delta ~ 0.4 - 0.5 m_dot0. We also found that the observed correlations of optical-UV variability amplitude with luminosity or rest-frame wavelength can be qualitatively explained by this accretion disc model.
description: 4 pages, 4 figures, accepted for publication in MNRAS Letters
Theoretical and experimental study of AC loss in HTS single pancake coils
Creators: name: Šouc, J.
name: Pardo, E.
name: Vojenčiak, M.
name: Gömöry, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The electromagnetic properties of a pancake coil in AC regime as a function of the number of turns is studied theoretically and experimentally. Specifically, the AC loss, the coil critical current and the voltage signal are discussed. The coils are made of Bi2Sr2Ca2Cu3O10/Ag (BiSCCO) tape, although the main qualitative results are also applicable to other kinds of superconducting tapes, such as coated conductors. The AC loss and the voltage signal are electrically measured using different pick up coils with the help of a transformer. One of them avoids dealing with the huge coil inductance. Besides, the critical current of the coils is experimentally determined by conventional DC measurements. Furthermore, the critical current, the AC loss and the voltage signal are simulated, showing a good agreement with the experiments. For all simulations, the field dependent critical current density inferred from DC measurements on a short tape sample is taken into account.
description: 22 pages, 15 figures; contents extended (sections 3.2 and 4); one new figure (figure 5) and two figures replaced (figures 3 and 8); typos corrected; title changed
Asymptotic enumeration of constellations and related families of maps on orientable surfaces
Creators: name: Chapuy, Guillaume
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We perform the asymptotic enumeration of two classes of rooted maps on orientable surfaces of genus g: m-hypermaps and m-constellations. For m=2, they correspond respectively to maps with even face degrees and bipartite maps. We obtain explicit asymptotic formulas for the number of such maps with any finite set of allowed face degrees. Our proofs rely on the generalisation to orientable surfaces of the Bouttier-Di Francesco-Guitter bijection, and on generating series methods. We show that each of the 2g fondamental cycles of the surface contributes a factor m between the numbers of m-hypermaps and m-constellations -- for example, large maps of genus g with even face degrees are bipartite with probability tending to 1/2^{2g}. A special case of our results implies former conjectures of Gao.
description: 39 pages, 9 figures
Equation of state for $β$-stable hot nuclear matter
Creators: name: Moustakidis, Ch. C.
name: Panos, C. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We provide an equation of state for hot nuclear matter in $β$-equilibrium by applying a momentum-dependent effective interaction. We focus on the study of the equation of state of high-density and high-temperature nuclear matter, containing leptons (electrons and muons) under the chemical equilibrium condition in which neutrinos have left the system. The conditions of charge neutrality and equilibrium under $β$-decay process lead first to the evaluation of proton and lepton fractions and afterwards of internal energy, free energy, pressure and in total to the equation of state of hot nuclear matter. Thermal effects on the properties and equation of state of nuclear matter are assesed and analyzed in the framework of the proposed effective interaction model. Special attention is dedicated to the study of the contribution of the components of $β$-stable nuclear matter to the entropy per particle, a quantity of great interest for the study of structure and collapse of supernova.
description: 28 pages, 18 figures
Casimir Pistons for Massive Scalar Fields
Creators: name: Zhai, Xiang-hua
name: Zhang, Yan-yan
name: Li, Xin-zhou
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Casimir force on two-dimensional pistons for massive scalar fields with both Dirichlet and hybrid boundary conditions is computed. The physical result is obtained by making use of generalized $ζ$-function regularization technique. The influence of the mass and the position of the piston in the force is studied graphically. The Casimir force for massive scalar field is compared to that for massless scalar field.
description: 6 pages, 7 figures, in press version of Mod. Phys. Lett. A
Probing extended Higgs sector through rare b --> s mu+ mu- transitions
Creators: name: Alok, Ashutosh Kumar
name: Dighe, Amol
name: Sankar, S. Uma
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the constraints on the contribution of new physics in the form of scalar/pseudoscalar operators to the average forward backward asymmetry of muons in B --> K mu+ mu- and the longitudinal polarization asymmetry A_{LP} of muons in B_s --> mu+ mu-. We find that the maximum possible value of allowed by the present upper bound on B(B_s --> mu+ mu-) is about 1% at 95% C.L. and hence will be very difficult to measure. On the other hand, the present bound on B(B_s --> mu+ mu-) fails to put any constraints on A_{LP}, which can be as high as 100% even if B(B_s --> mu+ mu-) is close to its standard model prediction. The measurement of A_{LP} will be a direct evidence for an extended Higgs sector, and combined with the branching ratio B(B_s --> mu+ mu-) it can even separate the new physics scalar and pseudoscalar contributions.
description: 21 pages, 4 figures
GRAVITY: getting to the event horizon of Sgr A*
Creators: name: Eisenhauer, F.
name: Perrin, G.
name: Brandner, W.
name: Straubmeier, C.
name: Richichi, A.
name: Gillessen, S.
name: Berger, J. P.
name: Hippler, S.
name: Eckart, A.
name: Schoeller, M.
name: Rabien, S.
name: Cassaing, F.
name: Lenzen, R.
name: Thiel, M.
name: Clenet, Y.
name: Ramos, J. R.
name: Kellner, S.
name: Fedou, P.
name: Baumeister, H.
name: Hofmann, R.
name: Gendron, E.
name: Boehm, A.
name: Bartko, H.
name: Haubois, X.
name: Klein, R.
name: Dodds-Eden, K.
name: Houairi, K.
name: Hormuth, F.
name: Graeter, A.
name: Jocou, L.
name: Naranjo, V.
name: Genzel, R.
name: Kervella, P.
name: Henning, T.
name: Hamaus, N.
name: Lacour, S.
name: Neumann, U.
name: Haug, M.
name: Malbet, F.
name: Laun, W.
name: Kolmeder, J.
name: Paumard, T.
name: Rohloff, R. -R.
name: Pfuhl, O.
name: Perraut, K.
name: Ziegleder, J.
name: Rouan, D.
name: Rousset, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the second-generation VLTI instrument GRAVITY, which currently is in the preliminary design phase. GRAVITY is specifically designed to observe highly relativistic motions of matter close to the event horizon of Sgr A*, the massive black hole at center of the Milky Way. We have identified the key design features needed to achieve this goal and present the resulting instrument concept. It includes an integrated optics, 4-telescope, dual feed beam combiner operated in a cryogenic vessel; near infrared wavefront sensing adaptive optics; fringe tracking on secondary sources within the field of view of the VLTI and a novel metrology concept. Simulations show that the planned design matches the scientific needs; in particular that 10 microarcsecond astrometry is feasible for a source with a magnitude of K=15 like Sgr A*, given the availability of suitable phase reference sources.
description: 13 pages, 11 figures, to appear in the conference proceedings of SPIE Astronomical Instrumentation, 23-28 June 2008, Marseille, France
PCE_result.zip
Creators: name: Sen, Lin
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 310899
subject: Plant biology not elsewhere classified
classificationCode: 300499
subject: Crop and pasture production not elsewhere classified

description: Polygonati Rhizoma is a widely cultivated herb in China, renowned for its culinary and medicinal uses. Despite extensive research, comprehensive studies on the population genetic diversity and core collection construction of medicinal Polygonatum species remain scarce. To address this, we employed 18 highly polymorphic SSR markers to develop two machine learning models for species discrimination. Subsequently, we performed comprehensive population genetic analyses on 175 accessions comprising three pharmacopoeial species and one closely related species, followed by core germplasm construction. The study demonstrated that the machine learning-based approach achieved consistently high discrimination accuracy, exceeding 81% for Polygonatum species identification. Among the four investigated Polygonati Rhizoma, significant variations in genetic diversity were observed, ranked from highest to lowest genetic diversity as follows: Polygonatum cyrtonema Hua (P. cyrtonema), Polygonatum sibiricum Red. (P. sibiricum), Polygonatum kingianum Coll. et Hemsl. (P. kingianum), and Polygonatum zanlanscianense Pamp. (P. zanlanscianense). Analysis of molecular variance (AMOVA) indicates that the majority of genetic variation occurs within populations, and a positive correlation exists between genetic distance and geographic distance. Cluster and population structure analyses identified three primary subgroups: Group 1, comprising P. kingianum; Group 2, including the majority of P. sibiricum and P. zanlanscianense; and Group 3, primarily consisting of P. cyrtonema and P. sibiricum from Sichuan Province. A core collection was constructed through stepwise clustering based on genetic distance. The C78 primary core collection achieved an allele retention rate of 84.59%, with minimal genetic redundancy, effectively representing both the geographic origins and genetic diversity of the original accessions. These findings provide a robust foundation for the conservation of medicinal Polygonatum spp. germplasm and offer potential resources for future genetic improvement and variety selection.
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Georgiadis, Loukas
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2023
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Theory of computation → Design and analysis of algorithms

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 265, 21st International Symposium on Experimental Algorithms (SEA 2023), pages 0:i-0:xii
Bjorken Sum Rule and pQCD frontier on the move
Creators: name: Pasechnik, Roman S.
name: Shirkov, Dmitry V.
name: Teryaev, Oleg V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The reasonableness of the use of perturbative QCD notions in the region close to the scale of hadronization, i.e., below $\lesssim 1 \GeV$ is under study. First, the interplay between higher orders of pQCD expansion and higher twist contributions in the analysis of recent Jefferson Lab (JLab) data on the Generalized Bjorken Sum Rule function $Γ_1^{p-n} (Q^2)$ at $0.1
description: 10 pages, 3 figures, minor changes
Dynamics of nonlinear resonances in Hamiltonian systems
Creators: name: Bustamante, Miguel D.
name: Kartashova, Elena
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: It is well known that the dynamics of a Hamiltonian system depends crucially on whether or not it possesses nonlinear resonances. In the generic case, the set of nonlinear resonances consists of independent clusters of resonantly interacting modes, described by a few low-dimensional dynamical systems. We show that 1) most frequently met clusters are described by integrable dynamical systems, and 2) construction of clusters can be used as the base for the Clipping method, substantially more effective for these systems than the Galerkin method. The results can be used directly for systems with cubic Hamiltonian.
description: New version: improved physical motivation and added details about clipping method
Interstellar Chemistry: Radiation, Dust and Metals
Creators: name: Spaans, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An overview is given of the chemical processes that occur in primordial systems under the influence of radiation, metal abundances and dust surface reactions. It is found that radiative feedback effects differ for UV and X-ray photons at any metallicity, with molecules surviving quite well under irradiation by X-rays. Starburst and AGN will therefore enjoy quite different cooling abilities for their dense molecular gas. The presence of a cool molecular phase is strongly dependent on metallicity. Strong irradiation by cosmic rays (>100x the Milky Way value) forces a large fraction of the CO gas into neutral carbon. Dust is important for H2 and HD formation, already at metallicities of 10^-4-10^-3 solar, for electron abundances below 10^-3.
description: Invited contribution to IAU Symposium 255 -- Low-Metallicity Star Formation: From the First Stars to Dwarf Galaxies
The role of the federal state : tripartism, incomes policy in Canada, 1966-78
Creators: name: Russell, James Albert
Publisher: name: University of British Columbia
Year: 2010

description: This thesis is an analysis, in a Marxist perspective, of the role of the federal state in managing the crisis of capital accumulation by means of incomes policy proposals and programs and tripartite institutions in the period 1966-78. The theory constructed is based on a Marxist understanding of the role of the state vis a vis the capitalist class and the working class in the period of monopoly capitalism. Incomes policy and tripartism are seen as state programs and institutions which effect a transfer of national income from wages and salaries to profits by further integrating the working class into the capitalist economy. The problem of managing the conflicts created by the economic class struggle is discussed. Sources include government and trade union documents, labour history studies and interviews with trade unionists. Implications and problems resulting from new institutions of industrial relations are discussed for the state and for the trade union movement.