cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The impact of social belief on landscape change: a geographical study of Vancouver
Creators: name: Gibson, Edward Mark Walter
Publisher: name: University of British Columbia
Year: 2011

description: The landscapes of Western Canadian cities reflect a distinctive blend of social beliefs and municipal policies derived from the founding groups whose origins were in the last decades of the nineteenth century. This study investigates, within Vancouver, the extent of order between social beliefs and the man-made landscapes observed in the period between 1886 and 1929; the persistence of these beliefs and landscapes in the period between 1929 and 1970; and the process of change through the intervening years. To compensate for the limited documented social history of Vancouver, the reconstruction of early beliefs and landscapes was guided by a theoretical model of Victorian society and landscape emphasizing the conflictive nature of social interaction in British cities. In Vancouver, economic, class and racial conflict contributed to the social segregation of the city into four major groups within distinctive sectors. Although there is no absolute order in relations between beliefs and landscapes, close associations are demonstrated between beliefs about nature and society, and local landscape, as defined by street layouts, park design and housing orientations. Diversity of landscape was maintained in the early period when the sectors tended to be politically discrete. In the modern period political control has been increasingly confined to the western sector, and recent landscape changes have tended to reflect the beliefs of these elite and middle-class groups. Nevertheless the persistence of beliefs about society and nature identified in the early period was corroborated by the statistical analysis of survey data. Further, five case studies of recent public issues concerning landscape changes illustrated the legacy of the distinctive origins and the persistence of inter-group conflict in the political processes controlling landscape change. The analysis of changing landscapes and the interpretation of "beliefs were based upon archival material such as city reports, club proceedings, diaries, maps, and interviews as well as field observations. The identification of contemporary social beliefs and landscape conflicts was based upon participant observation in civic organizations, interviews with civic leaders and a systematic analysis of data produced by the application of the Kluckhohn-Strodtbeck value-orientation test. Some implications of the study's findings for geographical research and urban policy are explored.
Charmonium decays to gamma pi0, gamma eta, and gamma eta'
Creators: name: CLEO Collaboration
name: Pedlar, T. K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Using data acquired with the CLEO-c detector at the CESR e+e- collider, we measure branching fractions for J/psi, psi(2S), and psi(3770) decays to gamma pi0, gamma eta, and gamma eta'. Defining R_n = B[ psi(nS)-->gamma eta ]/B[ psi(nS)-->gamma eta' ], we obtain R_1 = (21.1 +- 0.9)% and, unexpectedly, an order of magnitude smaller limit, R_2 < 1.8% at 90% C.L. We also use J/psi-->gamma eta' events to determine branching fractions of improved precision for the five most copious eta' decay modes.
description: 14 pages, available through http://www.lns.cornell.edu/public/CLNS/, published in Physical Review D
A study of the aristocratic ideal and the theme of moral decline in Latin love elegy.
Creators: name: Devine, A. M.
Publisher: name: University Of Tasmania
Year: 2023

description: The thesis argues that the love elegists show an original approach to the aristocratic ideal of service to the state and, more specifically, towards the subject of moral decline. in the first chapter the aristocratic ideal and the traditional version of moral decline are outlined from the epigraphic and literary evidence of pre-Augustan times. It is concluded that the aristocratic ideal centred on service to the state through the public career and that the traditional concept of moral decline involved dereliction of duty towards the state. A more detailed analysis of this traditional concert based on the study of moral terminology in the works of Sallust and Livy is included in the form of an appendix. It is strongly recommended that this be read immediately after chapter one. In chapter two there is an examination of the terminology used by the love elegists to describe the past, the ideal society and the causes and symptoms of moral decline. Their treatment of specific vices and virtues mentioned by the historians is also discussed and some comment is made on the different usage of moral terminology in the two genres. On the basis of this it is suggested that the love elegists significantly re-shape traditional aristocratic moral concepts, particularlv concerning moral decline. Next the treatment of the ideal society and the past is discussed in more depth. Chapter three shows how the love elegists reject the traditional aristocratic view of the ideal society as an austere and warlike community living in early Rome, replacing this with assorted Utopias of their own, both past and present. It is argued that they select many details from the traditional version of the past, but re-share them both for humorous effect and, more seriously, in protest , against war. In chapter four the love elegists' treatment of private morality is explored. It is shown that, in spite of occasional signs of sympathy for the aristocratic moral code (found mainly in the works of Propertius), the love elegists borrow extensively from Roman comedy and generally make fun of the aristocratic ideal and the traditional concept of private moral decline. The public career, which lies at the heart of the aristocratic ideal, is discussed in chapter five. Here it is suggested that, with rare exceptions, the love elegists approach the subject of the public career in a spirit either of antagonism or humour, which reflects their opposition to the aristocratic ideal. Finally, it is argued in chapter six that the subjects of the aristocratic ideal and moral decline have a variety of literary functions in love elegy. It is concluded that the most important of these are their functions as vehicles for humour and protest. It is here that the real novelty of their treatment lies.
Equation of state of hadron resonance gas and the phase diagram of strongly interacting matter
Creators: name: Satarov, L. M.
name: Dmitriev, M. N.
name: Mishustin, I. N.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The equation of state of hadron resonance gas at finite temperature and baryon density is calculated taking into account finite-size effects within the excluded volume model. Contributions of known hadrons with masses up to 2 GeV are included in the zero-width approximation. Special attention is paid to the role of strange hadrons in the system with zero total strangeness. A density- dependent mean field is added to guarantee that the nuclear matter has a saturation point and a liquid-gas phase transition. The deconfined phase is described by the bag model with lowest order perturbative corrections. The phase transition boundary is found by using the Gibbs conditions with the strangeness neutrality constraint. The sensitivity of the phase diagram to the hadronic excluded volume and to the parametrization of the mean-field is investigated. The possibility of strangeness-antistrangeness separation in the mixed phase is analyzed. It is demonstrated that the peaks in the kaon to pion and lambda to pion multiplicity ratios can be explained by a nonmonotonous behavior of the strangeness fugacity along the chemical freeze-out line.
description: 40 pages, 31 figures
English : logic and syntax.
Creators: name: Foster, Monica Jean
Publisher: name: University Of Tasmania
Year: 2023

description: This paper presents the results of research undertaken in order to examine two major subjects in the field of syntactic theory with application to English. The one subject concerns problems of procedure which have arisen from recent publications in analysing and presenting the syntax of English and other natural languages. The other concerns the relationship of certain artificial languages of symbolic logic with the syntax of English, and ensuing general implications concerning the nature of the artificial languages, Both studies were undertaken with the aim of clarifying procedures for the classification of morphemes into class variables and constants, and of clarifying formation and transformation rules which can be applied to then. It is hoped that the results will provide not only knowledge of the structure of English, but some information upon syntactic theory in general. It Is also hoped that they will provide some preliminary resolution of problems in the development of a calculus of English for machine use.
title: A genetic multi marker approach to estimate spatial and temporal structuring and Ne of albacore (Thunnus alalunga)
Creators: name: Laconcha, Urtzi
name: Iriondo, Mikel
name: Manzano, Carmen
name: Albaina, Aitor
name: Arrizabalaga, Haritz
name: Estonba, Andone
Publisher: name: ASC 2014 - Theme session E
Year: 2023
Subjects: Fisheries and aquaculture
Ecosystem observation, processes and dynamics

description: No abstracts are to be cited without prior reference to the author. Albacore (Thunnus alalunga) is a mostly over-exploited commercially important pelagic species [1]. Population genetic structure definition, along with effective population size (Ne ) estimation, are essential for the sustainable management and conservation of exploited species [2]. While defining population genetic structure is essential in order to define stocks or fisheries management units, Ne determines how vulnerable populations are to losing genetic diversity due to genetic drift and, consequently, assesses their responsiveness [3]. However, despite the great importance of this parameter for species’ conservation, nowadays there is no a published work with a Ne estimation for the albacore
A new series of thiazolyl pyrazoline derivatives linked to benzo[1,3]dioxole moiety: Synthesis and evaluation of antimicrobial and anti-proliferative activities
Creators: name: Mansour, Eman
name: Aboelnaga, Asmaa
name: Ekhlass M. Nassar
name: Safaa I. Elewa
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Hematology
subject: Plant Biology
subject: FOS: Biological sciences

description: 2-(5-(Benzo[d][1,3]dioxol-5-yl)-3-(naphthalen-1-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-(4-substituted phenyl)thiazole (7) and thiazole derivatives (9) were synthesized via reaction of 4,5-dihydro-1H-pyrazoles (5a,b) with substituted phenacyl bromide and a number of α-halo-compounds respectively. Also, (E)-2-(5-(benzo[d][1,3]dioxol-5-yl)-3-(naphthalen-1-yl)-4,5 dihydro-1H-pyrazol-1-yl)-4-methyl-5-(substituted phenyldiazenyl)thiazole (11) were prepared through reactions of carbothioamide (5a,b) with hydrazonoyl halides. In addition, thioamides (5a–b) were used as starting materials for preparation of thiazoles (12a–b) and benzylidene thiazoles (13a–b). Most of synthesized compounds show interesting biological properties as antimicrobial and antiproliferative activities, the results of minimum inhibitory concentration showed that pyrazole derivative 7c (MIC: 0.23 mg/mL) showed better results when compared with 11c and 12a (MIC: 0.1–0.125 mg/mL) as obtained from their MIC values. On the other hand, 2-(5-(benzo[d][1,3]dioxol-5-yl)-3-(naphthalen-2-yl)-4,5-dihydro-1H-pyrazol-1-yl)-4-(4-chlorophenyl) thiazole (7c) can be considered as the most promising anti-proliferative agent against HCT-116 cancer cells owing to its notable inhibitory effect on HCT-116 cells with an IC50 value of 6.19 µM.
The economic evaluation of non-marketed recreational resources
Creators: name: Laub, Michael Elwood
Publisher: name: University of British Columbia
Year: 2011

description: The fundamental difficulty faced by researchers attempting to evaluate recreational sites is that outdoor recreation is seldomly marketed. This thesis investigates the validity and feasibility of a number of techniques that attempt to value recreational benefits by simulating markets for access to recreational sites. First, the relevance of deriving statistical demand functions for outdoor recreation is established, along with some of the limitations inherent in such demand functions. A theoretical model of consumer behavior is then developed to provide an analytical framework within which the validity of the various market simulation techniques for estimating recreational demand function can be evaluated. A number of different demand concepts are developed as a result of (i) the income effect of access fees, and (ii) the quality effect arising from the impact access fees have on congestion. Which demand concept is relevant depends on the evaluational point of view. The discussion then proceeds, to a number of evaluational "short-cuts" that have been used in the past. These "short-cuts" and the reasons the resulting evaluations are unacceptable are briefly outlined. Five market simulation techniques are isolated for more intensive study, four of which are indirect approaches using differentials in travel costs as proxies for prices, while the fifth relies on direct interviews. Since the simulated demand functions are not themselves subject to direct empirical testing without actually creating a market where none exists, the evaluation of the validity of these techniques must rely on consideration of both the internal logic of each technique and the assumptions upon which the theoretical framework is based. In order to provide further insight into the conceptual and practical limitations of each approach, there is a comparative application of three of the techniques to the the problem of evaluating a sport fishery. The application of the interview approach is used to test some of the assumptions underlying the indirect travel cost techniques as well as to explore the implications of using both the price-compensating and price-equivalent concepts of consumers' surplus in the evaluation. High priority is placed on research to replace the single site evaluation approach for which the currently utilized techniques were designed with a systems approach wherein the demand interactions among the various recreational sites are explicitly incorporated. An evaluational technique is proposed that represents a first step in this direction. To date, there has been a serious imbalance in the allocation of research effort with a relative over-emphasis on the problems of implementing the various market-simulation techniques and a relative under-emphasis on the extraction and testing the underlying assumptions. This thesis calls attention to this imbalance and attempts to illustrate its fundamental importance.
Fast optimal frictionless atom cooling in harmonic traps
Creators: name: Chen, Xi
name: Ruschhaupt, A.
name: Schmidt, S.
name: del Campo, A.
name: Guery-Odelin, D.
name: Muga, J. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A method is proposed to cool down atoms in a harmonic trap without phase-space compression as in a perfectly slow adiabatic expansion, i.e., keeping the populations of the instantaneous initial and final levels invariant, but in a much shorter time. This may require that the harmonic trap becomes an expulsive parabolic potential in some time interval. The cooling times achieved are also shorter than previous minimal times using optimal-control bang-bang methods and real frequencies.
A Problem in Virtual Graviton exchanges in Flat Large Extra Dimensions
Creators: name: Namatame, Haruka
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is pointed out in a class of models with large extra dimensions that the cross section of processes with virtual Kaluza-Klein graviton exchanges becomes either much smaller or much larger by many orders of magnitude than what is expected from that of the on-shell production of the Kaluza-Klein gravitons. We demonstrate how the problem arises using a toy model. The cause of this new problem lies in the fact that we do not have momentum conservation in the extra dimensions. To search for the signal of the large extra dimensions with high energy collider experiments, we need more care in interpreting the earlier results on the cross sections of these processes.
description: 12 pages, no figure
Estimating Purity and Entropy in Stabilizer State Experiments
Creators: name: Wunderlich, Harald
name: Plenio, Martin B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Many experiments in quantum information aim at creating graph states. Quantifying the purity of an experimentally achieved graph state could in principle be accomplished using full-state tomography. This method requires a number of measurement settings growing exponentially with the number of constituents involved. Thus, full-state tomography becomes experimentally infeasible even for a moderate number of qubits. In this paper we present a method to estimate the purity of experimentally achieved graph states with simple measurements. The observables we consider are the stabilizers of the underlying graph. Then, we formulate the problem as: "What is the state with the least purity that is compatible with the measurement data?" We solve this problem analytically and compare the obtained bounds with results from full-state tomography for simulated data.
description: submitted to International Journal of Quantum Information - Special Issue on Distributed Quantum Computing
Evaluation of TLS session tickets
Creators: name: Nachtigall, Simon
Publisher: name: Universität Paderborn
Year: 2021

description: To establish a secure TLS connection between client and server, both parties have to perform a handshake where they establish a common secret. However, performing the secret establishment every time is very costly and increases the latency. For that reason, TLS offers session resumption mechanisms that allow both parties to reuse a previously established secret. A widely used resumption mechanism is session tickets. After the secret has been established, the server issues a session ticket containing the secret to the client. In the session resumption, the client sends the ticket back to the server. It is essential for the confidentiality of the sessions that the server encrypts the ticket with a STEK (Session Ticket Encryption Key). In 2020, Fiona Klute found a vulnerability in GnuTLS where the STEK was initialized with all-zeros allowing an attacker to decrypt recorded sessions retrospectively. This motivates us to evaluate the TLS session ticket ecosystem in more detail. Therefore, we present different vulnerabilities that might appear in session ticket handling of webservers. Next, we implement test suites for the presented vulnerabilities and evaluate them for the Tranco Top Million hosts in a large-scale scan. Finally, we present the results for the different evaluated vulnerabilities and other interesting findings in our thesis. We discovered that similarly to GnuTLS several thousand domains hosted by AWS used an all-zero STEK to encrypt their session tickets.
title: Snow crab (Chionoecetes opilio) – a new invasive crab species becoming an important player in the Barents Sea ecosystem
Creators: name: Sundet, Jan H.
name: Bakanev, Sergey
Publisher: name: ASC 2014 - Theme session F
Year: 2023
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. Since the first recordings in 1996, the snow crab has now spread to most parts of the Russian Economic Zone and international waters of the Barents Sea. It is also observed in the Norwegian Economic Zone and in the Svalbard area. The extent of distribution and crab density indices reveal that the total stock size must be considerable. Recordings of berried female snow crabs and numerous juveniles confirm that this species is self reproducing in the Barents Sea. It is therefore obvious that the propagule pressure for further spread in this arctic region is high and that new areas further north and west is likely to be invaded. The snow crab in the Barents Sea will probably adopt a more northerly distribution than the red king crab; the other invasive crab species in the area. A commercial fishery started in 2013 and counts now 15 vessels fishing for the snow crab in the Barents Sea. Future impact of this new species on the existing ecosystem is discussed based on preliminary stomach analyses and potential spread to new areas.
Cosmic x-ray surveys.
Creators: name: Francey, R J
Publisher: name: University Of Tasmania
Year: 2023

description: Chapters 1 to 3 are devoted solely to review of the X-ray sky, the environmental limitations on an experiment, and the techniques of X-ray detection. These are necessary for the design of proportional counters for a series of rocket surveys of the X-ray sky. Particular attention is given to the reduction of background noise, and significant improvements in the performance of laboratory tested detectors is achieved and discussed in Chapter 4. Chapter 4. also describes a wide range of calibration techniques developed and used on the rocket payloads. Because of the desirability of recording design detail, it is included in Chapters 1-4, contained in Volume 1. The first volume is used freely as a source of reference in Volume 2, the analysis section of the thesis. Results from three early rocket flights were available for analysis. Preliminary results, published at the time of these flights are included in Chapter 5. These are (i) the discovery of an intense X-ray source in Centaurus on 4. April 1967 (flight i) (2) a measure of the decrease in intensity and steepening of X-ray spectrum of the source, Cen XR-2, by 20 April 1967 (flight II) and complete disappearance by I December 1967 (flight III). (The variability made Cen XR-2 unique among X-ray sources at the time.) (3) a possible source in Cetus, significant in view of its large separation from the galactic disc (flight ii, III). In Chapter 6, flight II data has been reanalysed in detail and in the light of more recent evidence. Two significant findings are (i) An accurate and unambiguous location of Cen XR-2 in galactic longitude. The new position excludes a number of objects (hard X-ray, optical, radio), whose properties have been employed in constructing models for the source. (2) An established variability of X-ray sources in the Cygnus and nearby regions. The properties of the variation in Cen XR-2 and a similar newly discovered variable allow some restrictions to be placed on source models. With future low noise surveys in mind, the possibility of galactic structure in the diffuse X-ray background is investigated in Chapter 7. Remarkable similarities in the spectra of low frequency radio, X-ray and extraterrestrial electron spectra are displayed, and can be interpreted in terms of galactic phenomena with some reservations.. The radio data are used to predict possible X-ray anisotropies. Finally, in Chapter 8 attention is given to the possibility of ground based surveys of X-ray stars. Extensive new information on the electron production rates in the ionospheric fl-region are compiled and it is shown that the reported detection of a cosmic X-ray effect has implications on the chemistry of the ionosphere.
Measurement of the branching fraction for the decay Upsilon(4S) -> Upsilon(1S)pi+pi-
Creators: name: The Belle Collaboration
name: Sokolov, A.
name: Shapkin, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study transitions between Upsilon states with the emission of charged pions using 604.6/fb of data collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The measured product branching fraction is B(Upsilon(4S) -> Upsilon(1S)pi+pi-) * B(Upsilon(1S) -> mu+mu-) = = (2.11 +/- 0.30(stat.) +/- 0.14(sys.))*10^(-6) and the partial decay width is Gamma(Upsilon(4S) -> Upsilon(1S)pi+pi-) = = (1.75 +/- 0.25(stat.) +/- 0.24(sys.)) keV.
description: 5 pages, 3 figures, submit to PR(D)
Statistically significant length scale of filaments as a robust measure of galaxy distribution
Creators: name: Pandey, Biswajit
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have used a statistical technique "Shuffle" (Bhavsar & Ling 1988; Bharadwaj, Bhavsar & Sheth 2004) in seven nearly two dimensional strips from the Sloan Digital Sky Survey Data Release Six (SDSS DR6) to test if the statistically significant length scale of filaments depends on luminosity, colour and morphology of galaxies. We find that although the average filamentarity depends on these galaxy properties, the statistically significant length scale of filaments does not depend on them. We compare it's measured values in SDSS against the predictions of Lambda CDM N-body simulations and find that Lambda CDM model is consistent with observations. The average filamentarity is known to be very sensitive to the bias parameter. Using Lambda CDM N-body simulations we simulate mock galaxy distributions for SDSS NGP equatorial strip for different biases and test if the statistically significant length scale of filaments depends on bias. We find that statistically significant length scale of filaments is nearly independent of bias. The average filamentarity is also known to be dependent on the galaxy number density and size of the samples. We use Lambda CDM dark matter N-body simulations to test if the statistically significant length scale of filaments depends on these factors and find a very weak dependence. Finally we test the reliability of our method by applying it to controlled samples of segment Cox process and find that our method successfully recovers the length of the inputted segments. Summarizing these results we conclude that the statistically significant length scale of filaments is a robust measure of the galaxy distribution.
description: 11 pages, 11 figures, submitted
An analytic approach to number counts of weak-lensing peak detections
Creators: name: Maturi, M.
name: Angrick, C.
name: Bartelmann, M.
name: Pace, F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We develop and apply an analytic method to predict peak counts in weak-lensing surveys. It is based on the theory of Gaussian random fields and suitable to quantify the level of spurious detections caused by chance projections of large-scale structures as well as the shape and shot noise contributed by the background galaxies. We compare our method to peak counts obtained from numerical ray-tracing simulations and find good agreement at the expected level. The number of peak detections depends substantially on the shape and size of the filter applied to the gravitational shear field. Our main results are that weak-lensing peak counts are dominated by spurious detections up to signal-to-noise ratios of 3--5 and that most filters yield only a few detections per square degree above this level, while a filter optimised for suppressing large-scale structure noise returns up to an order of magnitude more.
description: 9 pages, 5 figures, submitted to A&A
title: Functional redundancy in Barents Sea fish
Creators: name: Wiedmann, Magnus Aune
name: Aschan, Michaela
name: Greenacre, Michael
name: Dolgov, Andrey
name: Primicerio, Raul
Publisher: name: ASC 2014 - Theme session F
Year: 2023
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. When facing environmental change and intensified anthropogenic impact on marine ecosystems, extensive knowledge of how these systems are functioning is required in order to manage them properly
DFT study of graphene antidot lattices: The roles of geometry relaxation and spin
Creators: name: Fuerst, Joachim A.
name: Pedersen, Thomas G.
name: Brandbyge, Mads
name: Jauho, Antti-Pekka
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Graphene sheets with regular perforations, dubbed as antidot lattices, have theoretically been predicted to have a number of interesting properties. Their recent experimental realization with lattice constants below 100 nanometers stresses the urgency of a thorough understanding of their electronic properties. In this work we perform calculations of the band structure for various hydrogen-passivated hole geometries using both spin-polarized density functional theory (DFT) and DFT based tight-binding (DFTB) and address the importance of relaxation of the structures using either method or a combination thereof. We find from DFT that all structures investigated have band gaps ranging from 0.2 eV to 1.5 eV. Band gap sizes and general trends are well captured by DFTB with band gaps agreeing within about 0.2 eV even for very small structures. A combination of the two methods is found to offer a good trade-off between computational cost and accuracy. Both methods predict non-degenerate midgap states for certain antidot hole symmetries. The inclusion of spin results in a spin-splitting of these states as well as magnetic moments obeying the Lieb theorem. The local spin texture of both magnetic and non-magnetic symmetries is addressed.
Children's spontaneous drawings : a normative study : an exploratory study of the drawings of children aged five to ten years.
Creators: name: Frost, Barry P
Publisher: name: University Of Tasmania
Year: 2023

description: The purpose of this investigation was to study the spontaneous drawings of Tasmanian Primary School children from five to ten years of age with a view to discovering the typical usage of form, colour and content at each age level. An analysis of spontaneous drawings made in the classroom situation by the subjects of the study who were 1090 children (573 boys, 517 girls) from five to ten years was carried out. These children were the total population (within the age range) of two large Hobart Primary Schools. The frequencies obtained for the different formal, colour and content categories were tabulated and discussed with particular reference to the findings and conclusions of other investigators. From these results a tentative developmental scale was drawn up in terms of each age level and for boys and girls separately. The relation of maturity and intelligence to the various categories was examined. It appeared that while developmental trends were present, the correlation of intelligence with the categories was not high enough to explain deviation from the general pattern. This increases the probability that emotional factors are important in cases which show deviation from the developmental norm in their drawings. As no direct evidence of the operation of emotional factors was available possible further studies and methods for study were indicated.
Rechtliche Rahmenbedingungen des Forschungsdatenmanagements - Teil 1: Urheber- und Leistungsschutzrechte an Forschungsdaten; Teil 2: Entscheidungsbefugnis über den Umgang mit Forschungsdaten
Creators: name: HeFDI-Hessische Forschungsdateninfrastrukturen
Publisher: name: Zenodo
Year: 2020
Subjects: Research Data Management rights copyright

description: Rechtsaspekte des Forschungsdatenmanagements werfen nach wie vor viele Fragen für Forschende und Nachnutzende auf: Wer darf welche Daten zu welchen Zwecken erheben und verarbeiten? Wem können die Daten „zugeordnet“ werden? Wer darf entscheiden, ob und wann sie veröffentlicht werden? Welche Lizenzen sind geeignet? Um den Unsicherheiten im rechtlichen Umgang mit Forschungsdaten zu begegnen, hat HeFDI auf Basis des Gutachtens des DataJus-Projekts (https://tu-dresden.de/gsw/jura/igetem/jfbimd13/ressourcen/dateien/dateien/DataJus/DataJus_Zusammenfassung_Gutachten_12-07-18.pdf?lang=de) die hier publizierte Handreichung zusammengestellt. Die Handreichung dient dazu, Forschenden und Forschungsdatenmanager*innen einen gut verständlichen Zugang zu Rechtsfragen hinsichtlich Forschungsdaten zu ermöglichen. Das anschaulich konzipierte Material kann sowohl in Schulungen zum Datenmanagement als auch in konkreten Beratungsprozessen eingesetzt werden. In einem ersten Schritt hat HeFDI die Themenfelder (I) Urheber- und Leistungsschutzrechte an Forschungsdaten sowie (II) Entscheidungsbefugnis über den Umgang mit Forschungsdaten in der hier publizierten Handreichung zusammengefasst. Das vorliegende Material umfasst zum einen eine animierte Präsentation in editierbarem Format. Gleichzeitig stellt HeFDI den Inhalt der Präsentation sowohl editierbar als auch im PDF-Format als Druckvorlage für ein Handout o. Ä. im DIN A4-Format zur Verfügung. Die Handreichung soll bei Bedarf aktualisiert werden. Anmerkungen und Korrekturen sowie Verbesserungsvorschläge bitten wir an hefdi@uni-marburg.de zu senden. Dieses Werk ist lizensiert unter einer Creative Commons Namensnennung - Weitergabe unter gleichen Bedingungen 4.0 International -Lizenz (https://creativecommons.org/licenses/by-sa/4.0/).
description: Bearbeiter: Patrick Langner, Christian Krippes, Nina Dworschak
Coherent Atom-Molecule Oscillations in a Bose-Fermi Mixture
Creators: name: Olsen, M. L.
name: Perreault, J. D.
name: Cumby, T. D.
name: Jin, D. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We create atom-molecule superpositions in a Bose-Fermi mixture of Rb-87 and K-40 atoms. The superpositions are generated by ramping an applied magnetic field near an interspecies Fano-Feshbach resonance to coherently couple atom and molecule states. Rabi- and Ramsey-type experiments show oscillations in the molecule population that persist as long as 150 microseconds and have up to 50% contrast. The frequencies of these oscillations are magnetic-field dependent and consistent with the predicted molecule binding energy. This quantum superposition involves a molecule and a pair of free particles with different statistics (i.e. bosons and fermions), and furthers exploration of atom-molecule coherence in systems without a Bose-Einstein condensate.
description: 5 pages, 4 figures
High energy emission from galaxy clusters and particle acceleration due to MHD turbulence
Creators: name: Brunetti, G.
name: Blasi, P.
name: Cassano, R.
name: Gabici, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the next years the FERMI gamma ray telescope and the Cherenkov telescopes will put very stringent constraints to models of gamma ray emission from galaxy clusters providing crucial information on relativistic particles in the inter-galactic-medium. We derive the broad band non-thermal spectrum of galaxy clusters in the context of general calculations in which relativistic particles (protons and secondary electrons due to proton-proton collisions) interact with MHD turbulence generated in the cluster volume during cluster mergers, and discuss the importance of future gamma ray observations.
description: 9 pages, 2 figures, in proceedings of "Science with the new generation of high energy gamma ray experiments", AIP Conf. Proc. Series, D.Bastieri and R.Rando eds
Reproductive development in Pisum : the role of genes Sn and Lf
Creators: name: Duchene, Christiane
Publisher: name: University Of Tasmania
Year: 2023

description: The influence of the flowering genes Sn/sn and Lfd/Lf/lf/lfa on postinitiation reproductive events in Pisum was examined using pure lines and two specially selected near-isogenic lines in the case of the Sn/sn difference and pure lines and segregating progenies in the case of the Lf series. From a comparison of lines 299+ (Sn, early photoperiodic) and 299- (sn, early day neutral) in short day conditions, it was found that gene Sn slowed the rate of flower bud, pod and seed development, prolonged flower life-span and increased the number of pods per raceme. Sn also promoted vegetative growth by delaying the onset of apical arrest and increasing the tendency to produce lateral branches. The delay in growth of the proximal pod at the first reproductive node remained even when the distal flower was excised at this and all subsequent nodes. The delay was therefore not a consequence of raceme ontogenesis. In contrast, removal of the apical bud immediately above the node bearing the first pod partly eliminated the effect of the Sn/sn difference on pod growth. By comparing genetically male sterile with fertile plants in a segregating progeny, it was found that flower lifespan was substantially extended in the absence of fertilisation. However, when the growth of Sn and sn pollen tubes was examined in vivo with the aid of fluorescence microscopy, no difference in the rate of growth could be demonstrated for the two genotypes. Hence, the increased life-span in Sn flowers does not appear to be a consequence of slower pollen tube growth. Since short days increased the interval between flower initiation and open flower in Sn plants but not sn plants, this interval is neither independent of photoperiod nor genotype in Pisum. The effect of the Lf series was examined on a day neutral background. The rate of flower bud development and pod growth was slightly promoted as the sequence lfa , lf, Lf and Lfd was ascended, i.e., as the time to flower initiation was delayed, and the promotion in reproductive growth appears to be a consequence of the delay in time to initiation. It is suggested that the underlying metabolism is, at first, strongly geared toward vegetative growth but that it becomes more favourable to reproductive growth with the passage of time. In contrast, Sn appears to interfere with the metabolic pathway, probably by delaying the time at which autonomous changes in the underlying metabolism occur. Sn may act by controlling assimilate partitioning within the shoot system. One of the crosses used to examine the effect of an Lfd/lf segregation also permitted the effect of segregation for the flowering gene pair Hr/hr to be studied on an Lfd sn background for the first time. Although many of the Lfd segregates initiated their first flower at node 20 or higher, no significant effect of segregation for Hr/hr could be detected. It seems therefore that sn remains epistatic to Hr in these circumstances.
Method of estimating the region of attraction for a system with many nonlinearities.
Creators: name: Foster, William Robert
Publisher: name: University of British Columbia
Year: 2011

description: A method of determining regions of attraction for a system with multiple nonlinearities is considered in this thesis. Application of the method involves finding the global minimum of a nonconvex Lyapunov function. This is done by finding a graphical solution using Lagrange multipliers and then applying the projected gradient method to determine the exact solution. A three machine power system example is included to illustrate the application.
HeFDI Gemeinsames Qualitätssicherungskonzept Schulungen
Creators: name: HeFDI -- Hessische Forschungsdateninfrastrukturen
Publisher: name: Zenodo
Year: 2020
Subjects: Research Data Management Data Literacy Quality Management

description: Das Management digitaler Forschungsdaten und Forschungssoftware gewinnt im Zuge der digitalen Transformation für Wissenschaft und Hochschulen eine immer höhere Bedeutung. Forschungsdatenmanagement ist eine grundlegende Kompetenz für Wissenschaftlerinnen und Wissenschaftler, um in der digitalen Welt erfolgreich und verantwortungsvoll forschen und arbeiten zu können. Um darüber hinaus in Arbeitswelt und Gesellschaft zu bestehen und teilzuhaben, müssen Hochschulabsolvierende aller Fächer über die Fähigkeiten verfügen, planvoll mit Daten umzugehen und sie im jeweiligen Kontext bewusst einsetzen und hinterfragen zu können. Im Verbund HeFDI -- Hessische Forschungsdateninfrastrukturen (www.hefdi.de) ist daher die Ausbildung von Datenkultur und Datenkompetenz ein eigenes Arbeitsfeld, zu dem das Angebot und die Umsetzungen von Schulungen gehören. Sie werden als eigenständige Veranstaltungen oder als integrierte Inhalte in bestehenden Lehrveranstaltungen durchgeführt und umgesetzt. Neben der Realisierung durch die Forschungsdatenreferent/innen vor Ort ist eine Kooperation mit lokalen Einrichtungen oder externen Partner/innen aus der Forschungsdaten-Community insbesondere dann anzustreben, wenn es sich um die Vermittlung fachspezifischer Inhalte handelt. Zielgruppen sind Studierende, Promovierende, Forschende und technisch-administratives Personal. Je nach Bedarf und Zielgruppe und im Hinblick auf die Unterscheidung der Kompetenzbereiche „Wissen und Verstehen“ und „Einsatz, Anwendung und Erzeugung von Wissen“[3] wird dabei unter Schulungen eine Reihe von Veranstaltungen mit unterschiedlichen Lernszenarien subsumiert, so etwa Informationsveranstaltungen, Workshops mit Aufgaben und Transferleistungen, themenspezifische Schulungen mit hohem Anwendungsbezug, curriculare Lehrveranstaltungen. Unter der Zielsetzung, Schulungen bedarfsorientiert, mit nachprüfbarer und einheitlicher Qualität und kontinuierlich angepasst durchzuführen, werden im gemeinsamen Qualitätssicherungskonzept Schulungen die Prozesse zur Qualitätsplanung, -kontrolle und -verbesserung beschrieben sowie Vorlagen bereitgestellt, die zur Qualitätssicherung der Veranstaltung genutzt werden können. Die Lenkungsgruppe von HeFDI hat dieses Qualitätssicherungskonzept im Oktober 2019 beschlossen. Alle HeFDI-Partner wirken daran mit, es kontinuierlich umzusetzen.
How can we design out on-farm food waste?
Creators: name: Sheridan, Jennifer
name: Rothwell, Prudence
name: Roberts, Megan
name: Chow, Lok
name: Open Food Network
Publisher: name: figshare
Year: 2021
Subjects: subject: 70605 Post Harvest Horticultural Technologies (incl. Transportation and Storage)
subject: FOS: Agriculture, forestry and fisheries

description: This report provides a summary of insights of the barriers and opportunities for farmers to sell everything they produce in order to reduce on-farm food waste, increase their return and mitigate the impact on climate change. This includes our understanding of the problem from a research perspective and the best practice measures that have been applied elsewhere to solve this problem. The report also details early findings from our ‘Whole Crop Purchasing’ project and on-the-ground investigation in the context of Victoria, Australia and how we might minimise on-farm food waste through innovative, co-designed partnerships between farmers and buyers.
title: Evaluation of RF photonics for future airborne multi-function sensor systems
Creators: name: Cumming, Tamrha
Publisher: name: University of Glasgow
Year: 2021
Subjects: subject: RF Photonics, microwave photonics, RF over fibre, multi-function sensor systems, airborne radar.

description: This thesis presents the findings of an engineering doctorate in the area of RF photonics for future airborne multi-function sensor systems (AMFSS). A future AMFSS will be required to achieve high levels of performance over more channels, using less system resources, at lower cost and on a shorter schedule than existing federated radar, electronic warfare and communications systems. This project aimed to examine the feasibility of utilising RF photonics to resolve some of the technical challenges faced in the implementation of RF transceivers for such systems. Photonic analogue to digital conversion techniques are available with the potential for very precise sampling of high frequency RF signals. The maturity of these techniques however was found to be too low to be viable for consideration for the first generation of AMFSS. Semiconductor laser based optoelectronic oscillators offer the potential for a very compact method of generating high frequency RF signals. Further development is still required to utilise this potential by improving the phase noise and stability of the RF signals generated and ensuring that this can be maintained in the harsh airborne environment. The distribution of high dynamic range RF signals over fibre around the aircraft offers the potential to reduce the size and weight of aircraft cabling. An RF over fibre link model was developed and validated against experimental results. This model was used to design a link based on commercially available components with 13.5 dB loss, 4.1 dBm OIP3 and 37.9 dB noise figure. Despite the higher than desired noise figure a very high two tone spurious free dynamic range of 90 dBc across a 1 GHz instantaneous bandwidth was achieved with this link at X-band. A bi-directional wavelength division multiplexed link was also constructed and then used to demonstrate the distribution of multiple RF transceiver reference signals and a high speed digital signal simultaneously over the same fibre. In this work RF photonics was found to have the potential to offer high performance solutions for a future AMFSS, assuming that the development of ruggedised and more highly integrated components continues. Of the three areas considered over the course of this project, distribution of high dynamic range RF signals over fibre appears to be feasible in the short term and photonic ADCs and optoelectronic oscillators should be considered in the longer term after further development.
title: Is the Canadian Arctic likely to be invaded by aquatic invasive species? A niche modelling study under various climate change scenarios
Creators: name: Goldsmit, Jesica
name: Howland, Kimberly
name: Chust, Guillem
name: Archambault, Philippe
Publisher: name: ASC 2014 - Theme session F
Year: 2023
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author. The combination of global warming, resource exploitation and the resulting increase in Arctic shipping activity are expected to increase the risk of aquatic invasive species (AIS) introductions to Arctic waters in the near future. We used MaxEnt to model the potential distribution of high risk AIS into the Canadian Arctic waters. The invasive red king crab (Paralithodes camtschaticus) was selected to test the model performance under current environmental conditions. The predicted probability of occurrence of this species in the Canadian Arctic, particularly in Hudson Bay, resulted in a 40-60% likelihood of presence. The application of niche modelling will aid in the identification of high risk geographic locations and species to allow for more focused AIS monitoring and research efforts with current environmental conditions and also in response to climate change.