cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Flavor Violation in Warped Extra Dimensions and CP Asymmetries in B Decays
Creators: name: Burdman, Gustavo
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We show that CP asymmetries in $b\to s$ hadronic decays are potentially affected by the presence of massive color-octet particles strongly coupled to the third generation quarks. Theories with warped extra dimensions provide natural candidates in the Kaluza-Klein excitations of gluons in scenarios where flavor-breaking by bulk fermion masses results in the localization of fermion wave-functions. Topcolor models, in which a new gauge interaction leads to top-condensation and a large top mass, also result in the presence of these color-octet states with TeV masses . We find that large effects are possible in modes such as $B\toϕK_s$, $B\to η' K_s$ and $B\toπ^0 K_s$ among others.
description: Version to appear in Physics Letters B
Genomes of scv loci–positive bacteria species
Creators: name: Liu, Ming
Publisher: name: figshare
Year: 2022
Subjects: subject: 60501 Bacteriology
subject: FOS: Biological sciences
subject: 60408 Genomics
subject: Microbiology

description: 1 Genomes sequences used in this study (not annotated)2 Genomes of scv loci–positive bacteria species (annotated using RAST).
The Use of Psalms and Hymns in Christian Worship: Historical Perspectives and Modern Applications
Creators: name: Mirna Christian Marbun*
name: Testi Bazarni Zebua
Publisher: name: Zenodo
Year: 2023
Subjects: Psalms, Hymns, Christian Worship.

description: Abstract: This study investigates the historical use of psalms and hymns in Christian worship and explores their contemporary applications. Through a comprehensive review of literature and analysis of current worship practices, the research traces the evolution of musical worship from ancient times to the modern era. The methodology focuses on a qualitative analysis of historical documents and modern worship contexts, identifying key shifts in the use of psalms and hymns across different time periods. The results reveal that while the foundational elements of psalm and hymn traditions remain influential in contemporary worship, significant adaptations have been made to accommodate modern cultural preferences and the evolving needs of worshippers. These changes include the incorporation of contemporary music styles, digital platforms, and the shifting roles of communal and individual worship in Christian communities. The discussion highlights the enduring significance of psalms and hymns in preserving theological and liturgical continuity, while also acknowledging the challenges and opportunities presented by modern worship innovations. Ultimately, the study concludes that psalms and hymns continue to serve as vital components of Christian worship, even as they undergo meaningful transformations in response to the dynamics of contemporary society. This research contributes to the broader understanding of the relationship between historical worship traditions and modern adaptations, offering insights into how ancient practices can be meaningfully integrated into current worship contexts. The findings suggest future directions for exploring the role of tradition and innovation in shaping the spiritual and communal experiences of Christian worshippers.
Caligus rotundigenitalis Yu 1933
Creators: name: Venmathi Maran, B. A.
name: Ohtsuka, Susumu
name: Shang, Xu
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Maxillopoda
Siphonostomatoida
Caligidae
Caligus
Caligus rotundigenitalis

description: Caligus rotundigenitalis Yü, 1933   (Fig. 8C)
 Caligus rotundigenitalis Yü, 1933: 118; Rangnekar 1959: 43; Yamaguti 1963: 59; Pillai and Natarajan 1977: 31; Pillai 1985: 348; Ho and Sey 1996: 65; Ho et al. 2000: 177; Ho and Lin 2001: 193; Grobler 2004: 141; Venmathi Maran et al. 2009: 797; Nagasawa et al. 2010: 103.
 Caligus multispinosus (not Shen, 1957): Lin et al. 1994: 259; 1997: 1483; Lin and Ho 1998b: 96.
 Material examined. One adult ♂ (XOB-PC12), Amoy (=Xiamen), Fujian Province, China (St. 1), 20 September 2008 (Table 1).
 Description. Male. Body (Fig. 8C) 1.38 mm long, excluding caudal setae. Cephalothoracic shield slightly wider than long, 0.71 mm × 0.75 mm. Fourth pediger wider than long, 0.14 mm × 0.30 mm. Genital complex subquadrate, small, longer than wide, 0.24 mm × 0.20 mm. Abdomen distinctly 2-segmented, longer than wide, 0.20 mm × 0.12 mm. Caudal ramus longer than broad, 0.08 mm × 0.05 mm, armed with 3 short and 3 long plumose setae.
 Remarks. This is the first record of C. rotundigenitalis in a plankton sample. Four other species of Caligus have hitherto been reported from plankton samples in China (Shen and Li 1959), including three species of which the hosts are as yet unknown, viz., C. aduncus Shen and Li, 1959, C. costatus Shen and Li, 1959, and C. undulatus Shen and Li, 1959.
 Distribution. Caligus rotundigenitalis is one of the most common caligids on cultured and wild fishes in Asia (Ho et al. 2000; Venmathi Maran et al. 2009; Nagasawa et al. 2010). It shows low host-specificity, utilizing a total of 32 fish species in 19 families as hosts in Taiwan (Ho et al. 2000).
description: Published as part of Venmathi Maran, B. A., Ohtsuka, Susumu & Shang, Xu, 2012, Records of Adult Caligiform Copepods (Crustacea: Copepoda: Siphonostomatoida) in Marine Plankton from East Asia, Including Descriptions of Two New Species of Caligus (Caligidae), pp. 201-219 in Species Diversity 17 (2) on page 212, DOI: 10.12782/sd.17.2.201, http://zenodo.org/record/4649334
Constraining evolution in the Halo Model using galaxy redshift surveys
Creators: name: Yan, Renbin
name: Madgwick, Darren S.
name: White, Martin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use the latest observations from the 2dF Galaxy Redshift Survey to fit the conditional luminosity function (CLF) formulation of the halo-model for galaxies at z=0. This fit is then used to test the extent of evolution in the halo occupation distribution (HOD) to z=0.8, by comparing the predicted clustering from this CLF to preliminary results from the DEEP2 Redshift Survey. We show that the current observations from the DEEP2 Redshift Survey are remarkably consistent with no evolution in the CLF from z=0 to z=0.8. This result is surprising, in that it suggests that there has been very little change in the way galaxies occupy their host dark matter halos over half the age of the Universe. We discuss in detail the observational constraints we have adopted and also the various different selection effects in each survey and how these impact on the galaxy populations encountered in each survey.
description: 11 pages, 5 figures. Minor modifications to match version accepted by ApJ
Marginal Likelihood Score-Based Tests of Regression Disturbances in the Presence of Nuisance Parameters
Creators: name: Rahman, Shahidur
name: King, Maxwell L.
name: Rahman, Shahidur
name: King, Maxwell L.
Publisher: name: Unknown
Year: 1993
Subjects: Research Methods/ Statistical Methods

description: This paper is concerned with tests of the covariance matrix of the disturbances in the linear regression model that involve nuisance parameters which cannot be eliminated by usual invariance arguments. Score-based tests, namely Lagrange multiplier (LM) and locally most mean powerful (LMMP) tests are derived from the marginal likelihood. Applications considered include (i) testing for random regression coefficients; (ii) testing for secondorder autoregressive (AR(2)) disturbances in the presence of AR(1) disturbances; and (iii) testing for ARMA(1,1) disturbances; each in the presence of AR(1) disturbances. An empirical size and power comparison shows that typically the new tests have more accurate asymPtotic critical values and slightly more power than their respective conventional counterparts.
Maximum Likelihood Estimation in Binary Data Models Using Panel Data Under Alternative Distributional Assumptions
Creators: name: Orme, Chris
name: Fry, Tim R. L.
name: Orme, Chris
name: Fry, Tim R. L.
Publisher: name: Unknown
Year: 1993
Subjects: Research Methods/ Statistical Methods

description: This note considers a model of (recurrent) univariate binary outcomes which incorporates random individual effects. Given simplifying distributional assumptions, a likelihood can easily be obtained having the attractive feature of being the product of contributions which only involve sums and no numerical integration. A recent paper by Conaway (1990) considers the same problem but solves it by finding expressions for the probabilities of all the 2T possible sequences of the T recurrent binary outcomes, some of which will not be observed in a given data set. The approach adopted in this paper derives an expression for the appropriate likelihood given a particular set of data. The likelihood, score vector and hessian matrix can all be written in simple forms which readily permits the use of Newton-Raphsonigradient methods to locate the roots of the score equations. Simulation experiments suggest that convergence is rapid and also provide evidence on the robustness of the model to distributional misspecification.
title: Development of a Pathogen Profiling Approach for Detecting and Dissecting Markers of Pathogenicity and Hyper-Variability in Group B Streptococci
Creators: name: Loy, Richard Paul
Publisher: name: The Open University
Year: 2013

description: Sequence typing is a rapidly evolving field and offers improved analysis into the genetic background and lineages of organisms compared to serological or DNA banding pattern based analysis. However, the resolution of molecular typing schemes varies between organisms and often loci used in sequence typing lack discriminatory power and give limited information into the evolution of the organism. This is particularly true of group B streptococci (GBS), where the same sequence types appear worldwide, which is unlikely for such a pathogen. This project aimed to develop a two component pathogen profiling approach which accurately reflected the phylogeny of GBS isolates, using elements of the core genome and elements of the variable genome. To address this a bioinformatic approach which selected loci for sequence typing based on predicting genes which evolve in the same manner as the average for the core genomes was adapted from a previously applied study for designing genus level sequence typing schemes. This informed the selection of candidate loci which were then experimentally verified, using a collection of 135 GBS clinical isolates. It was demonstrated that it was possible to obtain greater resolution and accuracy using only three unique genes that are intelligently selected, rather than using seven known housekeeping genes that are selected at random. Sources of hyper variability within the genome, in particular the presence of mononucleotide repeats (MNR) were investigated in non-coding DNA. It was postulated that these regions of DNA are more prone to mutation due to the lack of selective pressures, the presence of MNR repeats make these regions more unstable during replication and that in core genes these regions may be involved in genomic regulation by slipped strand mispairing. Results did confirm that non-coding DNA containing MNR repeats were more variable than DNA without them but these did not match the discriminatory power of MLST typing or the new three gene typing scheme. However, it was observed that one MNR tract was an insertion site for one of two insertion sequences and that typing using the presence/absence of these insertion sequences further enhanced discriminatory power in addition to the 3 gene scheme and may yet prove to be an indicator of virulence in clinical GBS isolates. As well as demonstrating that sequence typing can be more informative if sequence typing markers are intelligently selected, this project also showed the importance of developing computational methods to analyse pathogen genome sequences that are being released in ever increasing numbers thanks to new and constantly improving technologies. For example, methods-used here to determine the core and pan-genome of any given set of genomes are becoming increasingly important to the study of pathogen evolution, virulence and population dynamics.
Pre-Test Strategies for Time-Series Forecasting in the Linear Regression Model
Creators: name: King, Maxwell L.
name: Rankin, Mei Leng
name: King, Maxwell L.
name: Rankin, Mei Leng
Publisher: name: Unknown
Year: 1993
Subjects: Research Methods/ Statistical Methods

description: In linear time-series regression analysis, there is typically uncertainty about which variables to include as regressors and the exact form of the disturbance process. This paper uses the Monte Carlo method to investigate the predictive performance of nine different pretesting strategies for misspecification. Data generating processes used in the study include first-order autoregressive (AR(1)) disturbances, first-order moving average disturbances, an extra exogenous regressor and the lagged dependent variable as an extra regressor. We find that remarkably robust predictions for a range of misspecified models result from applying the Durbin-Watson test for autocorrelation and correcting for AR(1) disturbances when the test is significant.
Trusted Confidence Bounds for Learning Enabled Cyber-Physical Systems
Creators: name: Boursinos, Dimitrios
name: Koutsoukos, Xenofon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Cyber-physical systems (CPS) can benefit by the use of learning enabled components (LECs) such as deep neural networks (DNNs) for perception and decision making tasks. However, DNNs are typically non-transparent making reasoning about their predictions very difficult, and hence their application to safety-critical systems is very challenging. LECs could be integrated easier into CPS if their predictions could be complemented with a confidence measure that quantifies how much we trust their output. The paper presents an approach for computing confidence bounds based on Inductive Conformal Prediction (ICP). We train a Triplet Network architecture to learn representations of the input data that can be used to estimate the similarity between test examples and examples in the training data set. Then, these representations are used to estimate the confidence of set predictions from a classifier that is based on the neural network architecture used in the triplet. The approach is evaluated using a robotic navigation benchmark and the results show that we can computed trusted confidence bounds efficiently in real-time.
description: Accepted at the Workshop on Assured Autonomous Systems at the IEEE Symposium on Security and Privacy 2020
Pastiching as Artistic Research: Ifigenia/Ipermestra (Brussels, 2006)
Creators: name: Bruno, Forment
Publisher: name: Zenodo
Year: 2021
Subjects: subject: opera seria
subject: pasticcio
subject: artistic research
subject: https://www.wikidata.org/wiki/Q210675
subject: https://www.wikidata.org/wiki/Q674448
subject: https://www.wikidata.org/wiki/Q20827087

description: This is the open data set accompanying the homonymous article in 'Musicology Today', and consisting of two full scores and an Italian libretto with Dutch translation. Abstract: On 6 December 2006, students of the Royal Conservatoire of Brussels performed two one-act pasticci arranged by the author of this article: Ifigenia and Ipermestra. Assembled by the author of this article as experiments in the young discipline of artistic research in music, both ‘cut & paste’ operas offered opportunities to explore issues of music-dramatic syntax in opera seria. In this article, I explain how individual arias and recitatives were combined into two meta-compositions that sometimes respected, and sometimes overrode the eighteenth-century generic conventions. By revisiting the scores, libretti, archives and first-hand memories pertaining to this venture, I will show that ‘pastiching’ (pasticciare) is more than a historical form; it is a transhistorical method, involving a broad network of agencies, operators, and stakeholders whose strategies can be artistic and non-artistic, convergent and divergent. Pastiching does not necessarily result in ‘works’, fixed in time and space, but rather produces meta-compositional assemblages, the transience and formal instability of which provide opportunities to showcase neglected repertoire and tackle outdated musical ontologies.
Testing Hildreth-Houck Against Return to Normalcy Random Regression Coefficients
Creators: name: Brooks, Robert D.
name: King Maxwell, L.
name: Brooks, Robert D.
name: King Maxwell, L.
Publisher: name: Unknown
Year: 1993
Subjects: Research Methods/ Statistical Methods

description: In the context of the linear regression model, this paper considers testing for a single Hildreth-Houck random coefficient against the alternative that the coefficient follows the return to normalcy model. We attempt to construct a point-optimal invariant test but find that we have to resort to the class of approximate point-optimal invariant (APOI) tests introduced by King (1987). Empirical power calculations show that these tests have good small-sample properties compared to the likelihood ratio and Wald tests. A particular APOI test is recommended and is found to be remarkably robust to nonnormality.
title: Analysis and Development of Instrument Software Paradigms: Conception and Implementation of a New Instrument Control and Data Acquisition System, Proven by Material Scientific Applications
Creators: name: Flemming, Stefan Alexander
Publisher: name: The Open University
Year: 2013

description: During the last 50 years, the quality of analysis methods in many scientific disciplines has been enhanced by electronic applications, automation and data processing. While the features, performance and usability of these processes have been continually enhanced, it is conspicuous that the majority of institutes operate own proprietary software. This situation arises for both historical and financial reasons, plus a wish to retain autonomy fuelled by the requirement for a system that remains compatible with both new and legacy hardware.

This thesis reviews the commonly used scientific software systems and their stakeholders and tries to identify generic problems. The demands on instrument systems are summarized by a requirement specification. Based on these requirements, a basic concept is developed that reflects the current state-of-the art in software design and which may provide a blueprint for instrument system architectures.

The results are used to create a proof-of-concept implementation. Core to this approach is an application server that comes with a container, which makes use of the Inversion-of-Control pattern to loosely couple and execute components. These do not need to implement fixed interfaces and are thus decoupled from a specific use-case. Components can, for example, be proxies that control and acquire data from legacy hardware, perform calculations, provide a human-machine interface or act as storage. They are dynamically wired to experiments using XML-based Assembly files. Both Assemblies and Components can be published using a central store on a collaboration platform and shared by the community. This increases reusability and allows the use of existing Assemblies with new hardware by simply replacing the hardware proxy modules.

Example components have been provided for the access to legacy and new instrument hardware, the storage of results in the NeXus format, data reduction, simulation with McStas, the execution of customizable scans and the visualization of data.
Solitons, solitonic vortices, and vortex rings in a confined Bose-Einstein condensate
Creators: name: Komineas, S.
name: Papanicolaou, N.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Quasi-one-dimensional solitons that may occur in an elongated Bose-Einstein condensate become unstable at high particle density. We study two basic modes of instability and the corresponding bifurcations to genuinely three-dimensional solitary waves such as axisymmetric vortex rings and non-axisymmetric solitonic vortices. We calculate the profiles of the above structures and examine their dependence on the velocity of propagation along a cylindrical trap. At sufficiently high velocity, both the vortex ring and the solitonic vortex transform into an axisymmetric soliton. We also calculate the energy-momentum dispersions and show that a Lieb-type mode appears in the excitation spectrum for all particle densities.
description: RevTeX 9 pages, 9 figures
Magnetically Induced Optical Transparency With Ultra-Narrow Spectrum
Creators: name: Dong, Guohui
name: Xu, Dazhi
name: Zhang, Peng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Magnetically induced optical transparency (MIOT) is a technique to realize the narrow transmission spectrum in a cavity quantum electric dynamics (cavity QED) system, which is demonstrated in the recent experiment of cold 88Sr atoms in an optical cavity [Phys. Rev. Lett. 118, 263601 (2017)]. In this experiment, MIOT induces a new narrow transmission window for the probe beam, which is highly immune to the fluctuation of the cavity mode frequency. The linewidth of this transmission window approaches the decay rate of the electronic 3P1 state (about 2pi*7.5kHz) and is much less than the uncertainty of the cavity mode frequency (about 2pi*150kHz). In this work, we propose an approach to further reduce the linewidth of this MIOT-induced transmission window, with the help of two Raman beams which couples the electronic 3P1 state to the3S1state, and the3S1state to the 3P0 state, respectively. With this approach, one can reduce the transmission linewidth by orders of magnitude. Moreover, the peak value of the relative transmission power or the transmission rate of the probe beam is almost unchanged by the Raman beams. Our results are helpful for the study of precision measurement and other quantum optical processes based on cavity quantum electronic dynamics (cavity-QED).
description: 10 pages, 6 figures
Participatory Citizen Science
Creators: name: Aitkenhead, Georgia
name: Iwai, Suzanne
name: Markham, Sarah
name: Smith, Otis
Publisher: name: Zenodo
Year: 2021
Subjects: citizen science, prticipatory science, reproducibility, open science, sensory processing, autism

description: A talk for the third cohort of OLS presenting participatory, citizen science, and using AutSPACEs as a case study.
An Investigation into Light Bulb Sustainability
Creators: name: Chen, James
name: Pan, York
name: Renison, Andrew
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
title: Effects of Text Materials on Cultural Learning Among Taiwanese Students in South-East England
Creators: name: Clawson, David Ernest
Publisher: name: The Open University
Year: 2013

description: This research investigates Taiwanese students' reactions to textbooks in EFL classes in South-East England; specifically in Brighton and Hove, and how the use of such textbooks influences students' adaptation to the host culture. To investigate this area of study I have formulated three research questions based on my experience of research at Masters Level, an initial study and a review of the relevant literature. Research Questions: 1. What influence do textbooks used in EFL classes in the South-East of England have on Taiwanese students' experience and understanding of the culture in Britain? This question is further broken down into the following headings: 1.1 In what ways do the textbooks relate to the contemporary culture in Britain as experienced by the students in South-East England? How important is this for students' learning? 1.2 Are the cultural practices represented in the textbook aligned with what the students require? 2. Which factors, other than the core textbook, may also be important in determining the degree to which and the rate at which the Taiwanese students come to terms with the culture in Britain? Specifically, the influence of the following: 2.1 multinational classroom environment. 2.2 students' experiences outside the classroom. 3. Are there any significant barriers, specifically related to cultural factors, in Britain that are particularly troublesome for Taiwanese students? Does the information available to the students in the textbooks raise or lower these barriers? I chose to conduct a qualitative study using grounded theory within a case study approach. The methods of data collection chosen were: questionnaires, classroom observations, small-group interviews and students' diaries. The main findings suggest that Taiwanese students are influenced by the visual images and the language in their textbooks, and that the importance many students attach to the textbook is largely based on their Confucian background. The findings from this research may be of value to language schools in Taiwan and the South-East of England, and may also contribute to the field of English language teaching and learning and cultural preparation for study abroad, and specifically to teachers, teacher educators, study abroad administration and textbook writers and publishers.
A Multi-Target Track-Before-Detect Particle Filter Using Superpositional Data in Non-Gaussian Noise
Creators: name: Ito, Nobutaka
name: Godsill, Simon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Methodology (stat.ME)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This paper proposes a novel particle filter for tracking time-varying states of multiple targets jointly from superpositional data, which depend on the sum of contributions of all targets. Many conventional tracking methods rely on preprocessing for detection (e.g., thresholding), which severely limits tracking performance at a low signal-to-noise ratio (SNR). In contrast, the proposed method operates directly on raw sensor signals without requiring such preprocessing. Though there also exist methods applicable to raw sensor signals called track-before-detect, the proposed method has significant advantages over them. First, it is general without any restrictions on observation/process noise statistics (e.g., Gaussian) or the functional form of each target's contribution to the sensors (e.g., linear, separable, binary). Especially, it includes Salmond et al.'s track-before-detect particle filter for a single target as a particular example up to some implementation details. Second, it can track an unknown, time-varying number of targets without knowing their initial states owing to a target birth/death model. We present a simulation example of radio-frequency tomography, where it significantly outperformed Nannuru et al.'s state-of-the-art method based on random finite sets in terms of the optimal subpattern assignment (OSPA) metric.
description: Multi-target tracking (MTT), track-before-detect, superpositional data, particle filter, birth/death process
Matter-wave interferometry in periodic and quasi-periodic arrays
Creators: name: Eksioglu, Y.
name: Vignolo, P.
name: Tosi, M. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We calculate within a Bose-Hubbard tight-binding model the matter-wave flow driven by a constant force through a Bose-Einstein condensate of Rb 87 atoms in various types of quasi-onedimensional arrays of potential wells. Interference patterns are obtained when beam splitting is induced by creating energy minigaps either through period doubling or through quasi-periodicity governed by the Fibonacci series. The generation of such condensate modulations by means of optical-laser structures is also discussed.
description: 11 pages, 6 figures. To appear in Opt. Comm
Transport in Almost Integrable Models: Perturbed Heisenberg Chains
Creators: name: Jung, P.
name: Helmes, R. W.
name: Rosch, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The heat conductivity kappa(T) of integrable models, like the one-dimensional spin-1/2 nearest-neighbor Heisenberg model, is infinite even at finite temperatures as a consequence of the conservation laws associated with integrability. Small perturbations lead to finite but large transport coefficients which we calculate perturbatively using exact diagonalization and moment expansions. We show that there are two different classes of perturbations. While an interchain coupling of strength J_perp leads to kappa(T) propto 1/J_perp^2 as expected from simple golden-rule arguments, we obtain a much larger kappa(T) propto 1/J'^4 for a weak next-nearest neighbor interaction J'. This can be explained by a new approximate conservation law of the J-J' Heisenberg chain.
description: 4 pages, several minor modifications, title changed
Synchronization in leader-follower switching dynamics
Creators: name: Park, Jinha
name: Kahng, B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The features of animal population dynamics, for instance, flocking and migration, are often synchronized for survival under large-scale climate change or perceived threats. These coherent phenomena have been explained using synchronization models. However, such models do not take into account asynchronous and adaptive updating of an individual's status at each time. Here, we modify the Kuramoto model slightly by classifying oscillators as leaders or followers, according to their angular velocity at each time, where individuals interact asymmetrically according to their leader/follower status. As the angular velocities of the oscillators are updated, the leader and follower status may also be reassigned. Owing to this adaptive dynamics, oscillators may cooperate by taking turns acting as a leader or follower. This may result in intriguing patterns of synchronization transitions, including hybrid phase transitions, and produce the leader-follower switching pattern observed in bird migration patterns.
title: Academic Development Through Teaching: A Study Into the Experiences of Postgraduate and Postdoctoral Researchers
Creators: name: McGugan, Stuart Alexander
Publisher: name: The Open University
Year: 2013

description: This study aims to develop an understanding of the learning about academic practice that postgraduate and postdoctoral researchers develop through teaching experiences. Three key questions are asked: What is the nature of the teaching roles that postgraduate and postdoctoral researchers undertake? What kinds of processes help postgraduate and postdoctoral researchers engage with teaching roles? What kinds of learning do teaching opportunities provide postgraduate and postdoctoral researchers? To address these questions a research design using an interpretive approach with 14 postgraduate and postdoctoral researchers at a UK university was undertaken. This involved a visual method of data collection that captured teaching experiences through photo-elicitation. The study found that the teaching roles that were undertaken varied significantly in their complexity, and that these roles were primarily accessed through ad-hoc and informal means. The study also found five key processes that helped engagement with teaching roles. These processes were identified as informal conversations with colleagues; feedback on teaching performance; observations of other teachers; collaborative working; and training. The outcome of these processes resulted in the development of new understandings about both academic work and emerging professional identities. The implications of the findings are twofold. Firstly they contribute to an improved theoretical understanding about the relationship between teaching and academic development for early career researchers, and a new model that conceptualises the nature of this relationship is presented. Secondly, the findings also have implications for professional practice. The study highlighted that the quality of the learning derived from a teaching experience will be greatly enhanced when opportunities for teaching dialogues with more experienced colleagues are present. This provides the rationale for institutions to adopt a peer review of teaching scheme that can offer formative and developmental support for postgraduate and postdoctoral researchers who are undertaking a teaching role.
Unified Field Theory From Enlarged Transformation Group. The Consistent Hamiltonian
Creators: name: Pandres,, Dave
name: Green, Edward L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A theory has been presented previously in which the geometrical structure of a real four-dimensional space time manifold is expressed by a real orthonormal tetrad, and the group of diffeomorphisms is replaced by a larger group. The group enlargement was accomplished by including those transformations to anholonomic coordinates under which conservation laws are covariant statements. Field equations have been obtained from a variational principle which is invariant under the larger group. These field equations imply the validity of the Einstein equations of general relativity with a stress-energy tensor that is just what one expects for the electroweak field and associated currents. In this paper, as a first step toward quantization, a consistent Hamiltonian for the theory is obtained. Some concluding remarks are given concerning the need for further development of the theory. These remarks include discussion of a possible method for extending the theory to include the strong interaction.
description: 22 pages, 1 table
Blue colours of BL Lac host galaxies
Creators: name: Kotilainen, J. K.
name: Falomo, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Near-infrared and optical imaging of BL Lac host galaxies is used to investigate their colour properties. We find that the R-H colour and colour gradient distributions of the BL Lac hosts are much wider than those for normal ellipticals, and many objects have very blue hosts and/or steep colour gradients. The blue colours are most likely caused by recent star formation. The lack of obvious signs of interaction may, however, require a significant time delay between the interaction event with associated star formation episodes and the onset of the nuclear activity.
description: 2 pages, 1 figure, to appear in the proceedings of "The Interplay among Black Holes, Stars and ISM in Galactic Nuclei", IAU 222, eds. T. Storchi Bergmann, L.C. Ho, and H.R. Schmitt
Many-Body Physics with Individually-Controlled Rydberg Atoms
Creators: name: Browaeys, Antoine
name: Lahaye, Thierry
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Over the last decade, systems of individually-controlled neutral atoms, interacting with each other when excited to Rydberg states, have emerged as a promising platform for quantum simulation of many-body problems, in particular spin systems. Here, we review the techniques underlying quantum gas microscopes and arrays of optical tweezers used in these experiments, explain how the different types of interactions between Rydberg atoms allow a natural mapping onto various quantum spin models, and describe recent results that were obtained with this platform to study quantum many-body physics.
description: 14 pages, 6 figures, 115 references. Invited review in Nature Physics. This is the manuscript as initially submitted; there are only very minor changes in the published version
NM 2
Creators: name: Arlo, Griffiths
name: Levivier, Adeline
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2019
Subjects: drumslab
slab

description: uninscribed
description: Provenance: India
description: Provenance: Andhra Pradesh
description: Provenance: Nagarjunakonda
description: Provenance: Nagarjunakonda Museum
description: date: 0200-0300
An Investigation into Sustainable Computer Hardware for the New SUB Project
Creators: name: Kidson, Stephen
name: Hui, Derek
name: Eldridge, Dale
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
HUMAN CAPITAL AND SELF-ENFORCING CONTRACTS
Creators: name: Azariadis, Costas
name: Azariadis, Costas
Publisher: name: Unknown
Year: 1987
Subjects: Agricultural and Food Policy
Labor and Human Capital

description: This essay analyzes labor contracts as a device for rearranging factor incomes over time when the lack of verifiable public information about future compensation prevents finitely-lived workers from borrowing against their earnings. Specific human capital is used as an incentive to implement intertemporal self-enforcing contracts between workers and firms. I propose a necessary and sufficient condition for the existence of such contracts, explore the resulting equilibrium earnings profiles, and investigate how imperfections in the credit market influence the way workers allocate time between current production and training.
Better Foreground Segmentation Through Graph Cuts
Creators: name: Howe, Nicholas R.
name: Deschamps, Alexandra
Publisher: name: arXiv
Year: 2004
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.4.6

description: For many tracking and surveillance applications, background subtraction provides an effective means of segmenting objects moving in front of a static background. Researchers have traditionally used combinations of morphological operations to remove the noise inherent in the background-subtracted result. Such techniques can effectively isolate foreground objects, but tend to lose fidelity around the borders of the segmentation, especially for noisy input. This paper explores the use of a minimum graph cut algorithm to segment the foreground, resulting in qualitatively and quantitiatively cleaner segmentations. Experiments on both artificial and real data show that the graph-based method reduces the error around segmented foreground objects. A MATLAB code implementation is available at http://www.cs.smith.edu/~nhowe/research/code/#fgseg
description: 8 pages, 110 figures. Revision: Added web link to downloadable Matlab implementation
GENERAL EQUILIBRIUM AND IMPERFECT COMPETITION: PROFIT FEEDBACK EFFECTS AND PRICE NORMALISATIONS
Creators: name: Cripps, M. W.
name: Myles, G. D.
name: Cripps, M. W.
name: Myles, G. D.
Publisher: name: Unknown
Year: 1988
Subjects: Demand and Price Analysis
Productivity Analysis

description: There are two general issues which bedevil general equilibrium models with imperfect competition: price normalisation and the feedback from prices to incomes. We present a class of normalisations which do not affect the behaviour of oligopolists, this is argued to be the only class of normalisations with this general property. We also provide a set of necessary conditions for the existence of equilibrium with monopoly and feedback effects.
Sexualization of Children or Human Rights? Attitudes Toward Addressing Sexual-Orientation Diversity in School
Creators: name: Klocke, Ulrich
Publisher: name: Humboldt-Universität zu Berlin
Year: 2022
Subjects: subject: sex education
subject: school-based intervention
subject: public opinion
subject: homosexuality (attitudes toward)
subject: attitude
subject: sexual and gender minorities
subject: surveys and questionnaires
subject: LGBTQI
subject: sexual orientation
subject: social values
subject: 150 Psychologie

description: Lesbian, gay, and bisexual (LGB) adolescents are more likely to experience mental health problems than their heterosexual peers because they are victimized more often or fear discrimination. Governmental plans to improve this situation by addressing sexual diversity in German schools have been accompanied by public resistance and misinformation, e.g., that they aim to sexualize children. The present study assessed how widespread negative attitudes toward such plans really are and how they can be explained. A random sample of 2,013 German residents was surveyed by phone. Only 10% opposed promoting acceptance of LGB in school. Approval of such plans was predominantly predicted by respondents’ beliefs about sexual orientation and the plans’ aim, and only marginally by societal values. Respondents who knew that the plans’ aim was to promote acceptance of LGB and not to sexualize children and that children with same-sex parents are just as well off as those with heterosexual parents showed higher approval, whereas respondents who believed that homosexuality is affected by socialization showed higher opposition.
What about overcoming the Germ Theory?
Creators: name: Santos, Mara
Publisher: name: F1000 Research Limited
Year: 2021

description: Science is not a static knowledge. Scientists are always looking for a new
 understanding of everything and society must apply this constant evolution in its
 own way to evaluate phenomena and react in abnormal situations.

 One year passed since COVID-19 was announced but we’re still facing this
 pandemic using a theory from XIX century, Germ theory, ignoring all the new
 findings achieved in the laboratories and this has a negative impact in the society.

 Social relations, economy and freedom cannot be victims of an old theory that is not
 finding reason to still be used nowadays. Health is an inner chemical equilibrium
 and it cannot be dependent on solutions that don’t integrate Biochemical new
 concepts and their mutual relations.

 COVID-19 is showing us that we need to update our vision about Virus and how to
 prevent and cure them and this is my vision following recent researches.
Identifying Carbon as the Source of Visible Single Photon Emission from Hexagonal Boron Nitride
Creators: name: Mendelson, Noah
name: Chugh, Dipankar
name: Reimers, Jeffrey R.
name: Cheng, Tin S.
name: Gottscholl, Andreas
name: Long, Hu
name: Mellor, Christopher J.
name: Zettl, Alex
name: Dyakonov, Vladimir
name: Beton, Peter H.
name: Novikov, Sergei V.
name: Jagadish, Chennupati
name: Tan, Hark Hoe
name: Ford, Michael J.
name: Toth, Milos
name: Bradac, Carlo
name: Aharonovich, Igor
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Single photon emitters (SPEs) in hexagonal boron nitride (hBN) have garnered significant attention over the last few years due to their superior optical properties. However, despite the vast range of experimental results and theoretical calculations, the defect structure responsible for the observed emission has remained elusive. Here, by controlling the incorporation of impurities into hBN and by comparing various synthesis methods, we provide direct evidence that the visible SPEs are carbon related. Room temperature optically detected magnetic resonance (ODMR) is demonstrated on ensembles of these defects. We also perform ion implantation experiments and confirm that only carbon implantation creates SPEs in the visible spectral range. Computational analysis of hundreds of potential carbon-based defect transitions suggest that the emission results from the negatively charged VBCN- defect, which experiences long-range out-of-plane deformations and is environmentally sensitive. Our results resolve a long-standing debate about the origin of single emitters at the visible range in hBN and will be key to deterministic engineering of these defects for quantum photonic devices.
Local demands on sterile neutrinos
Creators: name: Latimer, David C.
name: Ernst, David J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In a model independent manner, we explore the local implications of a single neutrino oscillation measurement which cannot be reconciled within a three-neutrino theory. We examine this inconsistency for a single region of baseline to neutrino energy $L/E$. Assuming that sterile neutrinos account for the anomaly, we find that the {\it local} demands of this datum can require the addition to the theory of one to three sterile neutrinos. We examine the constraints which can be used to determine when more than one neutrino would be required. The results apply only to a given region of $L/E$. The question of the adequacy of the sterile neutrinos to satisfy a global analysis is not addressed here. Finally, using the results of a 3+2 analysis, we indicate values for unknown mixing matrix elements which would require two sterile neutrinos due to local demands only.
description: 11 pages, 1 figure, discussion added
Optimal Destabilisation, Active Learning, and the Choice of Step Length in Policy Reform
Creators: name: Frewer, Geoff
name: Frewer, Geoff
Publisher: name: Unknown
Year: 1985
Subjects: Agricultural and Food Policy
Research Methods/ Statistical Methods

description: A theoretical model is presented in which the decision marker's choice of step length for reform is allowed to depend on the consequences which this is expected to have for the accuracy of information about the structure of the economy. Also, destabilisation by means of introducing variance into policies, is desirable under some circumstances since it speeds up the learning process.