cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
How is Identity Formed in Animated Film, through Representations of Self, Difference, Culture and Place?
Creators: name: Batkin, Jane
Publisher: name: University of Lincoln
Year: 2023

description: This critical commentary accompanies the selection of publications listed above and is submitted for consideration for the award of PhD by Publication. The thesis of these publications – namely five chapters, one monograph and one journal article – taken together, illustrates how identity shapes - and is shaped by - both animated characters and their worlds. They also inform how the medium of animation, as a malleable, often confrontational and contested form, addresses representations of Self, Difference and Place. The question of belonging is examined, along with ideas of the physical space the character inhabits, and how these identities are shaped in a unique way through the medium of animation. The commentary will address the ‘problem’ of animation as an artificial construct, and the topic of this PhD will be placed in its critical context. The commentary will then demonstrate the originality of the body of work, making reference to editors’ feedback and academic reviews. The publications to which this commentary applies will be discussed in a chronological order as a coherent body of work that reveals similar themes and representations on the topic of identity and its representation in animation, across stop motion, 2D and CG mediums.
Semileptonic and nonleptonic decays of $B_s$ mesons
Creators: name: Albertus, C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the semileptonic and nonleptonic decays of $B_s$ mesons. We work within the context of nonrelativistic constituent quark models. We calculate the different form factors that parameterize the hadron matrix elements.
description: Contribution to the proceedings of the 22nd European Conference on Few Body Problems in Physics (EFB22)
Hetero-ever-after: Homonormative happiness for gay and lesbian characters on US network television towards and after Marriage Equality.
Creators: name: Author, Unknown
Publisher: name: University of Lincoln
Year: 2023

description: The Supreme Court’s decision on Marriage Equality legalised same sex marriage across the United States, and marked the culmination of decades of legal struggle, political partisanship and social activism. This thesis examines how network television has used same sex marriage as a happy ending for its gay and lesbian characters, and how this perpetuates a narrative that Marriage Equality signifies a happy ending for the LGBTQ rights movement. By using theories from cultural, sociological and economic fields this thesis constructs network television as neoliberal, and examines its output not just as an artistic product, but as a reflection of the political positions of its audiences and its financiers. By drawing on the works of Sara Ahmed and Lisa Duggan, this work argues that the connections made between marriage and happiness, privilege homonormativity as happiness causing and casts queerness as the source of gay unhappiness. The programmes analysed portray their characters’ problems as solved by marriage, reinforcing the idea of Marriage Equality as a solution to the problems of the LGBTQ community. However, as the political landscape has changed, so has the way network television engages with gay and lesbian unhappiness, allowing space for its gay characters to experience unhappiness as an impetus for political action.
Lie symmetries for Lie systems: applications to systems of ODEs and PDEs
Creators: name: Estévez, P. G.
name: Herranz, F. J.
name: de Lucas, J.
name: Sardón, C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A {\it Lie system} is a nonautonomous system of first-order differential equations admitting a {\it superposition rule}, i.e., a map expressing its general solution in terms of a generic family of particular solutions and some constants. Using that a Lie system can be considered as a curve in a finite-dimensional Lie algebra of vector fields, a so-called {\it Vessiot--Guldberg Lie algebra}, we associate every Lie system with a Lie algebra of Lie point symmetries induced by the Vessiot--Guldberg Lie algebra. This enables us to derive Lie symmetries of relevant physical systems described by first- and higher-order systems of differential equations by means of Lie systems in an easier way than by standard methods. A generalization of our results to partial differential equations is introduced. Among other applications, Lie symmetries for several new and known generalizations of the real Riccati equation are studied.
Bookazines and what the Process of Producing Them Reveals About the Magazine Industry, Using Mortons Media as a Particular Case Study
Creators: name: Author, Unknown
Publisher: name: University of Lincoln
Year: 2023

description: Magazine publishers are facing tough times. In most cases circulations are decreasing, fewer people are buying print magazines, as they can get much of the information they want for free online, and retailers are cutting the amount of newsstand space they have available for print products in favour of other, more profitable goods. Some publishers, like TI Media with Marie Claire as of September 2019, are no longer producing print versions of some of their magazines. Yet there remains hope for the future for print, and for many publishers the bookazine is proving to be an important weapon in their resistance against the decline. This thesis examines the nature of the bookazine as a print product, why publishers are producing them when the magazine industry is facing such challenging times, what their existence reveals about the magazine industry as a whole and its future. Very little has been written by academics and industry experts on the bookazine and why they exist and the aims of this research are to determine whether they are produced solely to make up for publishers’ magazine losses and what bookazines reveal about the wider magazine industry. This thesis argues that there is more to it than just filling the gap caused by falling magazine sales. Semi-structured interviews were conducted with 15 magazine industry professionals at publishers that produce bookazines or similar print products and their views were compared with those of staff at one particular bookazine publisher, Mortons Media Group Ltd, in a case study. Analysis of the responses shows that although primarily bookazines are produced to bring much-needed extra revenue, that revenue itself is modest and there is much more to it than filling a gap, as bookazines are seen as a part of a wider, multi-platform strategy to raise the profile of publishers’ key brands, which bring in money in a number of other ways, including magazines, websites and events. Publishers are also keen to diversify their revenue streams to avoid being overly-reliant on one or two, including magazines, and thus more susceptible to volatility in those markets. The thesis concludes by suggesting how publishers like Mortons Media Group can make best use of its bookazines and other opportunities to promote its brands and prosper as a business, such as developing more partnerships with retailers and outside organisations with its bookazines and magazines and it also observes how by making bookazines, magazine publishers like Mortons are driving the evolution of magazines from products that once resembled books at the beginning in the 18th century, through to the traditional view of the glossy full-colour magazine, to something more akin to a book again, and even turning to publishing books themselves.
Case Study - X-Ray Absorption Spectroscopy
Creators: name: Stoli Catalysts Ltd
Publisher: name: Zenodo
Year: 2020
Subjects: spectroscopy
analysis
services
x-ray
XAS
catalysis
catalysts
characterisation
analytical techniques

description: This case study highlights a recent anlytical project Stoli carried out for a customer in the field of catalyst development.
description: This project has received funding from the European Union (EU) Horizon 2020 research and innovation programme SME-2 - SME instrument phase 2 under grant agreement No 848926
An introduction to a past and present stemmer for Persian intransitive verbs
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2013

description: The vast quantity of scientific information has made linguistic analysis almost impossible without application of linguistic software. Stemming is considered to be one of the essentials of information retrieval systems. This paper introduces a stemmer for Persian intransitive verbs, made by the author. In this software, rule-based algorithms and Bruth Force algorithms and also syntactic and morphological analyzers are used. Persian intransitive verbs are generally divided into 8 groups and the rest listed under exceptions, available to users when necessary. This stemmer is able to perform the followings in the shortest time: (1) Identifying infinitives from Persian verb stems 2. Identifying Persian infinitive-maker suffixes (3) Removing infinitive-maker suffixes and providing past stems (4) Removing suffixes and offering present stems (5) Identifying exceptions and offering their stems. This software can be applied in the areas of information retrieval, language teaching, syntax, morphology and grammar writing
Precision Astronomy with Imperfect Fully Depleted CCDs -- An Introduction and a Suggested Lexicon
Creators: name: Stubbs, Christopher W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: This paper summarizes the introductory presentation for a workshop that explored the challenges of making precision astronomical measurements using deeply depleted (thick) CCDs. While thick CCDs provide definite advantages in terms of increased quantum efficiency at NIR wavelengths, and reduced fringing from atmospheric emission lines, these devices also exhibit undesirable features that pose a challenge to precision determination of the positions, fluxes, and shapes of astronomical objects, and features in astronomical spectra. Many of the effects seen in these devices arise from lateral electrical fields within the detector, that produce charge transport anomalies that have been previously misinterpreted as quantum efficiency variations. Performing simplistic flat-fielding introduces systematic errors in the image processing pipeline. One measurement challenge is devising a calibration method that can distinguish genuine quantum efficiency variations from charge transport effects. Given the scientific benefits of improving both the precision and accuracy of astronomical measurements, we need to identify, characterize, and overcome these various detector artifacts. In retrospect, many of the detector features first identified in thick CCDs also afflict measurements made with more traditional CCD detectors, albeit often at a reduced level. I provide a qualitative overview of the physical effects we think are responsible for the observed device properties, and provide some perspective for the work that lies ahead. Finally, I take this opportunity to make a plea for establishing a clear and consistent vocabulary when describing these various detector features, and make some suggestions for a standard lexicon based on discussions at the workshop.
description: 12 page introductory talk for BNL workshop on Precision Astronomy with Fully Depleted CCDs, held Nov 2013
Precession-driven flows in non-axisymmetric ellipsoids
Creators: name: Noir, Jerome
name: Cébron, David
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the flow forced by precession in rigid non-axisymmetric ellipsoidal containers. To do so, we revisit the inviscid and viscous analytical models that have been previously developed for the spheroidal geometry by, respectively, Poincaré (Bull. Astronomique, vol. XXVIII, 1910, pp. 1-36) and Busse (J. Fluid Mech., vol. 33, 1968, pp. 739-751), and we report the first numerical simulations of flows in such a geometry. In strong contrast with axisymmetric spheroids, where the forced flow is systematically stationary in the precessing frame, we show that the forced flow is unsteady and periodic. Comparisons of the numerical simulations with the proposed theoretical model show excellent agreement for both axisymmetric and non-axisymmetric containers. Finally, since the studied configuration corresponds to a tidally locked celestial body such as the Earth's Moon, we use our model to investigate the challenging but planetary-relevant limit of very small Ekman numbers and the particular case of our Moon.
Case Study - Coating Methodologies for New Processes
Creators: name: Stoli Catalysts Ltd
Publisher: name: Zenodo
Year: 2020
Subjects: flow chemistry
coating
continuous
process
tube
monolith
catalysis
catalyst

description: Case study detailing novel catalyst coating methodologies for use in tube reactors.
description: This project has received funding from the European Union (EU) Horizon 2020 research and innovation programme SME-2 - SME instrument phase 2 under grant agreement No 848926
Confinement, Phase Transitions and non-Locality in the Entanglement Entropy
Creators: name: Kol, Uri
name: Nunez, Carlos
name: Schofield, Daniel
name: Sonnenschein, Jacob
name: Warschawski, Michael
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we study the conjectural relation between confinement in a quantum field theory and the presence of a phase transition in its corresponding entanglement entropy. We determine the sufficient conditions for the latter and compare to the conditions for having a confining Wilson line. We demonstrate the relation in several examples. Superficially, it may seem that certain confining field theories with a non-local high energy behaviour, like the dual of D5 branes wrapping a two-cycle, do not admit the corresponding phase transition. However, upon closer inspection we find that, through the introduction of a regulating UV-cutoff, new eight-surface configurations appear, that satisfy the correct concavity condition and recover the phase transition in the entanglement entropy. We show that a local-UV-completion to the confining non-local theories has a similar effect to that of the aforementioned cutoff.
description: 64 pages. Lots of figures
Extreme Infrared Variables from UKIDSS - I. A Concentration in Star Forming Regions
Creators: name: Peña, C. Contreras
name: Lucas, P. W.
name: Froebrich, D.
name: Kumar, M. S. N.
name: Goldstein, J.
name: Drew, J. E.
name: Adamson, A.
name: Davis, C. J.
name: Barentsen, G.
name: Wright, N. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present initial results of the first panoramic search for high-amplitude near-infrared variability in the Galactic Plane. We analyse the widely separated two-epoch K-band photometry in the 5th and 7th data releases of the UKIDSS Galactic Plane Survey. We find 45 stars with ΔK > 1 mag, including 2 previously known OH/IR stars and a Nova. Even though the mid-plane is not yet included in the dataset, we find the majority (66%) of our sample to be within known star forming regions (SFRs), with two large concentrations in the Serpens OB2 association (11 stars) and the Cygnus-X complex (12 stars). Sources in SFRs show spectral energy distributions (SEDs) that support classification as Young Stellar Objects (YSOs). This indicates that YSOs dominate the Galactic population of high amplitude infrared variable stars at low luminosities and therefore likely dominate the total high amplitude population. Spectroscopic follow up of the DR5 sample shows at least four stars with clear characteristics of eruptive pre-main-sequence variables, two of which are deeply embedded. Our results support the recent concept of eruptive variability comprising a continuum of outburst events with different timescales and luminosities, but triggered by a similar physical mechanism involving unsteady accretion. Also, we find what appears to be one of the most variable classical Be stars.
description: 26 pages, 16 Figures, accepted for publication in MNRAS
Case Study - Developing a Catalyst for a Highly Explosive Reaction
Creators: name: Stoli Catalysts Ltd
Publisher: name: Zenodo
Year: 2020
Subjects: high pressure
explosive
catalysis
catalysts
flow chemistry

description: Case study illustrating the development of catalysts for reactions at 100 bar in aggressive media.
description: This project has received funding from the European Union (EU) Horizon 2020 research and innovation programme SME-2 - SME instrument phase 2 under grant agreement No 848926
How Radio Can Improve Lives in Minority Communities
Creators: name: Braisby, Rose
Publisher: name: University of Lincoln
Year: 2023

description: This thesis will draw upon radio production, specifically community radio, to examine how the participation of the audience can empower participants and offer a voice to the voiceless. By embedding the values of community radio into community/rehabilitation projects, can radio improve lives for those participating in the production? This research will explore what is meant by the term minority community, and how those within a minority community can be better represented through the medium of radio. Radio produced ‘by the prisoner for the prisoner’ is beginning to draw academic interest as a means to help prisoners with their rehabilitation process. This thesis will explore the nature of the media within minority communities, and will specifically examine how radio production can be used to connect with the more challenging to reach communities such as prisoners and patients within a high-secure hospital. Are prisoners a minority community? If so, what defines them as such? By focusing on one element of minority communities; those who are incarcerated, this body of work examines the broader implications for other minority communities. It is necessary to examine the impact that radio has on the producer to analyse how radio can improve lives. By drawing on the theory and practice of media production, as well as the impact on participants, a conclusion can be made on how the lives of those involved are improved. The DiGi DBT (Digital Dialectical Behavioural Therapy) project will act as a case study to test the theory that radio production can improve lives. Through an observational research approach, the project will look specifically at patients diagnosed with personality disorders, living in a high-secure hospital. By encouraging patients to engage with community radiobased projects, can they be empowered? If empowerment takes place, can this aid the patients’ rehabilitation process? DiGi DBT was initially a two-year project, funded by Knowledge Transformation Partnerships (KTP), which was later extended to three years. DiGi DBT was observed first-hand by the researcher and author of this thesis, while being employed as the Media and Therapy Developer responsible for leading the programme. The project saw the University of Lincoln and Rampton High Secure Hospital come together to use radio as a medium to help patients diagnosed with personality disorder redesign Dialectical Behavioural Therapy (DBT) for future patients through radio production. This thesis uses ethnographic, observational and qualitative research techniques to evaluate the success of the project, the project aims and how this project can be used as a case study to evidence how radio can improve lives in minority communities
Achieve Better Ranking Accuracy Using CloudRank Framework for Cloud Services
Creators: name: Subha, M.
name: Saravanan, K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Building high quality cloud applications becomes an urgently required research problem. Nonfunctional performance of cloud services is usually described by quality-of-service (QoS). In cloud applications, cloud services are invoked remotely by internet connections. The QoS Ranking of cloud services for a user cannot be transferred directly to another user, since the locations of the cloud applications are quite different. Personalized QoS Ranking is required to evaluate all candidate services at the user - side but it is impractical in reality. To get QoS values, the service candidates are usually required and it is very expensive. To avoid time consuming and expensive realworld service invocations, this paper proposes a CloudRank framework which predicts the QoS ranking directly without predicting the corresponding QoS values. This framework provides an accurate ranking but the QoS values are same in both algorithms so, an optimal VM allocation policy is used to improve the QoS performance of cloud services and it also provides better ranking accuracy than CloudRank2 algorithm.
description: 6 pages, 10 figures, Published with International Journal of Engineering Trends and Technology (IJETT)
NuSTAR Observations of the Bullet Cluster: Constraints on Inverse Compton Emission
Creators: name: Wik, Daniel R.
name: Hornstrup, Allan
name: Molendi, Silvano
name: Madejski, Grzegorz
name: Harrison, Fiona A.
name: Zoglauer, Andreas
name: Grefenstette, Brian W.
name: Gastaldello, Fabio
name: Madsen, Kristin K.
name: Westergaard, Niels J.
name: Ferreira, Desiree D. M.
name: Kitaguchi, Takao
name: Pedersen, Kristian
name: Boggs, Steven E.
name: Christensen, Finn E.
name: Craig, William W.
name: Hailey, Charles J.
name: Stern, Daniel
name: Zhang, William W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The search for diffuse non-thermal inverse Compton (IC) emission from galaxy clusters at hard X-ray energies has been undertaken with many instruments, with most detections being either of low significance or controversial. Background and contamination uncertainties present in the data of non-focusing observatories result in lower sensitivity to IC emission and a greater chance of false detection. We present 266ks NuSTAR observations of the Bullet cluster, detected from 3-30 keV. NuSTAR's unprecedented hard X-ray focusing capability largely eliminates confusion between diffuse IC and point sources; however, at the highest energies the background still dominates and must be well understood. To this end, we have developed a complete background model constructed of physically inspired components constrained by extragalactic survey field observations, the specific parameters of which are derived locally from data in non-source regions of target observations. Applying the background model to the Bullet cluster data, we find that the spectrum is well - but not perfectly - described as an isothermal plasma with kT=14.2+/-0.2 keV. To slightly improve the fit, a second temperature component is added, which appears to account for lower temperature emission from the cool core, pushing the primary component to kT~15.3 keV. We see no convincing need to invoke an IC component to describe the spectrum of the Bullet cluster, and instead argue that it is dominated at all energies by emission from purely thermal gas. The conservatively derived 90% upper limit on the IC flux of 1.1e-12 erg/s/cm^2 (50-100 keV), implying a lower limit on B>0.2μG, is barely consistent with detected fluxes previously reported. In addition to discussing the possible origin of this discrepancy, we remark on the potential implications of this analysis for the prospects for detecting IC in galaxy clusters in the future.
description: 24 pages, 15 figures, submitted to ApJ
The challenges and the possibilities to the use of technology in the teaching and learning of English language as a case study.
Creators: name: Author, Unknown
Publisher: name: University of Lincoln
Year: 2023

description: The use of technology as a strategy for supporting language learning is an area which requires further exploration. Specifically, this study seeks to research the Saudi Arabian school situation. Simply put, the Saudi government dedicated a great deal of time and money into the education sector. However, as researchers have pointed out, there are still weaknesses in Saudi primary schools in terms of using technology in the classroom. The use of technology can help teachers to enhance the students’ learning and motivate them, especially with regard to learning English as a foreign language. This study which was based on a case study of a single public primary school in Saudi Arabia employed both qualitative and quantitative methods. Data was collected by conducting a survey, interviews, observations, and experimental research. The study was conducted to gain a deeper understanding on the usage of information in the teaching and learning of English language in Saudi Arabian public primary. The target population was Saudi Arabian school children and their teachers. The study shows that the teachers involved in the study appreciated the importance of technology in teaching EFL. The findings indicate that technologies such as laptops, tablets, YouTube and Internet generally have a positive impact on student language learning, engagement and interest in learning.
Hadronotus exsculptus Forster 1861
Creators: name: Awad, Jessica
name: Zimmermann, Dominique
name: Talamas, Elijah
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Scelionidae
Hadronotus
Hadronotus exsculptus

description: Hadronotus exsculptus Förstelr, 1861
Hadronotus exsculptus Förster, 1861: 41. Type locality: Switzerland, Val Roseg.
Gryon exsculptus – Kozlov 1978: 620.
Gryon exsculptum – Mineo 1981: 119, 126 (emendation).
Gryon exculptum – Mineo & Caleca 1994: 117 (misspelling).
Gryon exculptus – Kozlov & Kononova 1990: 266, 272 (misspelling).
Material examined
Holotype SWITZERLAND • 1 ♀; Val Roseg; A. Förster leg.; NHMW-HYM#0002996.
description: Published as part of Awad, Jessica, Zimmermann, Dominique & Talamas, Elijah, 2024, A photographic type catalogue of Platygastroidea (Insecta, Hymenoptera) in the Natural History Museum Vienna, pp. 1-58 in European Journal of Taxonomy 938 on page 23, DOI: 10.5852/ejt.2024.938.2565, http://zenodo.org/record/12106502
Algorithm For Multi-Hand Finger Counting: An Easy Approach
Creators: name: Dey, Sumit Kumar
name: Anand, Shubham
Publisher: name: arXiv
Year: 2014
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: In this paper we propose an easy algorithm for real time hand finger counting involving one or more than one hand. Hand finger counting is a simple medium for Human-Computer Interface which can prove to be a convenient input method for driving interactive menus, small applications and interactive games. Here, we also calculate the orientation of the hand which can be used to provide inputs for the direction and/or speed control of a robot, controlling mouse cursor or slide-show presentations. If being used by a single person, with his or her two hands, the person can trigger ten different commands with fingers in addition to the orientation of the hand. We tried to use very simple algorithm using very basic mathematics of 2D coordinate geometry and avoided the conventional use of calculus, contours and convex hull. Anyone seeking for an easy to implement hand finger counting algorithm can refer to it.
description: 8 pages, 4 sets of figures
What is a quantum simulator?
Creators: name: Johnson, T. H.
name: Clark, S. R.
name: Jaksch, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum simulators are devices that actively use quantum effects to answer questions about model systems and, through them, real systems. Here we expand on this definition by answering several fundamental questions about the nature and use of quantum simulators. Our answers address two important areas. First, the difference between an operation termed simulation and another termed computation. This distinction is related to the purpose of an operation, as well as our confidence in and expectation of its accuracy. Second, the threshold between quantum and classical simulations. Throughout, we provide a perspective on the achievements and directions of the field of quantum simulation.
description: 13 pages, 2 figures
Typology of Iranian Uses and Gratification in Goodreads
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2016

description: This survey tries finding and classifying the ways Iranians satisfy by Goodreads. For this purpose the Uses and Gratification theory used as theoretical framework. We send questionnaires for 290 people who were active in network. By using Factor Analysis we find that all 25 variable can be categorized in 6 factor:1- information seeking, 2- being with community, 3- escape from everyday life, 4- being with books, 5- Strengthening occupation and 6- knowing about Celebrities. Second purpose of the research was answering this question that “which factors can anticipate main activity of users?” we defined 3 activity as main activity: friend finding, rating and writing reviews.by using regression test we find that 2 factors (information seeking and being with books) can predict main activities of Iranian. As well as, being with community is another factor that Influence two main activity: friend finding and writing reviews.
Noisy Bayesian Active Learning
Creators: name: Naghshvar, Mohammad
name: Javidi, Tara
name: Chaudhuri, Kamalika
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Optimization and Control (math.OC)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 62L05, 62L10, 62B10, 62F03, 62F05, 93E35, 93E20

description: We consider the problem of noisy Bayesian active learning, where we are given a finite set of functions $\mathcal{H}$, a sample space $\mathcal{X}$, and a label set $\mathcal{L}$. One of the functions in $\mathcal{H}$ assigns labels to samples in $\mathcal{X}$. The goal is to identify the function that generates the labels even though the result of a label query on a sample is corrupted by independent noise. More precisely, the objective is to declare one of the functions in $\mathcal{H}$ as the true label generating function with high confidence using as few label queries as possible, by selecting the queries adaptively and in a strategic manner. Previous work in Bayesian active learning considers Generalized Binary Search, and its variants for the noisy case, and analyzes the number of queries required by these sampling strategies. In this paper, we show that these schemes are, in general, suboptimal. Instead we propose and analyze an alternative strategy for sample collection. Our sampling strategy is motivated by a connection between Bayesian active learning and active hypothesis testing, and is based on querying the label of a sample which maximizes the Extrinsic Jensen-Shannon divergence at each step. We provide upper and lower bounds on the performance of this sampling strategy, and show that these bounds are better than previous bounds.
description: 39 pages (one-column), 5 figures, submitted to IEEE Transactions on Information Theory
A New Method for Supporting Information Management in Engineering-consulting Companies: Organizational Network Analysis
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2014

description: Organizational performance depends on specialized information that is transfered throughout an organization via communication networks among employees. Interactions that occur within these networks are poorly understood and are generally unmanaged. In this case study, we describe a method that has potential to provide systematic support for information management in engineering- consulting companies. We applied organizational network analysis, a method for studying communication networks, to assess the method’s utility to support decision making for the managers of engineering-consulting companies in civil industry, and to determine what links existed between information use and the agency processes. Data on communication links among a company’s department’s staff was obtained via a survey with a 94% response rate, and were analyzed by the Organizational Risk Analyzer (ORA) software. The findings described the structure of information flow in the department’s communication networks. Results indicated that communications among employees between divisions were weak especially among experts staff. Shared situation awareness of organizational processes is low. However, speed of information flow was good. The analysis results in providing better insights into organizational processes for managers to address problems and to take advantage of network strengths.
Gravitational Collapse of an Imperfect Non Adiabatic Fluid
Creators: name: Chan, R.
name: da Silva, M. F. A.
name: Brandt, C. F. C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the evolution of an anisotropic shear-free fluid with heat flux and kinematic self-similarity of the second kind. We found a class of solution to the Einstein field equations by assuming that the part of the tangential pressure which is explicitly time dependent of the fluid is zero and that the fluid moves along time-like geodesics. The energy conditions, geometrical and physical properties of the solutions are studied. The energy conditions are all satisfied at the beginning of the collapse but when the system approaches the singularity the energy conditions are violated, allowing for the appearance of an attractive phantom energy. We have found that, depending on the self-similar parameter $α$ and the geometrical radius, they may represent a naked singularity. We speculate that the apparent horizon disappears due to the emergence of exotic energy at the end of the collapse, or due to the characteristics of null acceleration systems as shown by recent work.
description: 25 pages, 16 figures, published in IJMPD
Case Study - Catalyst for Fuel Cell Applications
Creators: name: Stoli Catalysts Ltd
Publisher: name: Zenodo
Year: 2020
Subjects: solid oxide fuel cell
fuel cell
hydrogen generation
hydrogen
gas phase
flow chemistry
continuous
environment

description: Case study detailing the development of catalysts for hydrogen generation in solid oxide fuel cells.
description: This project has received funding from the European Union (EU) Horizon 2020 research and innovation programme SME-2 - SME instrument phase 2 under grant agreement No 848926
Architectural Paint Research: Examining the Theoretical and Practice-Based Contributions to the Conservation of Built Heritage
Creators: name: Author, Unknown
Publisher: name: University of Lincoln
Year: 2023

description: Conservation is a dynamic discipline that contributes to studies of material culture, history, heritage and science. This research aims to establish the value of data generated by conservation-based research to demonstrate its contribution to the broader investigation of heritage places and objects. The research achieves this by exploring the theoretical and intellectual roots of APR as a conservation discipline and uses APR as a case study to explore the research questions using three examples of built heritage. Architectural paint research is an analytical technique that has emerged from art-historical practice and found a niche in the conservation of built heritage. The results and recommendations of architectural paint research can determine the decorative schemes used in the conservation and re-presentation of built heritage contributing to, and arguably altering, their cultural significance. This thesis argues that architectural paint research has been validated through its use in the heritage and conservation industries; however, the theoretical basis of the practice has not been explored or enunciated in any detail. The research proposes that architectural paint research is a methodological process, which acts as an interpretive bridge, linking the science and agency of decorative schemes with their social and historical context. Object-centred paint research and analysis generates scientific and practice-informed information, which can be contextualised in relation to archival evidence and interpreted to generate new explicit knowledge. The new knowledge can be expressed as narrative describing the relationship and connection between the world of the artefact and those who act in it.
Distributed Leadership in Middle Management: a comparative study of the educational and private sectors
Creators: name: Author, Unknown
Publisher: name: University of Lincoln
Year: 2023

description: The aim of this comparative and interdisciplinary research project was to investigate Distributed Leadership (DL) in Middle Management (MM) in the public and private sectors in Malta. This is apposite as Maltese contemporary education reforms are creating decentralised school systems and distributed leadership within Colleges. Similarly, in the private business sector, particularly in newer industries such as iGaming, new organisational models are being tried including leadership at lower levels. In addition, DL is currently viewed as the dominant format for both schools and commercial enterprises. Whereas leading theorists construe DL predominantly as a frame of analysis, other scholars take a more practical or applied view. In both cases, there was little agreement on the meaning of the term, and very few empirical studies of DL in action. With the aim of contributing a new theoretical framework, this research adopted the structure-agency analytical approach (Archer, 2003) in which structure and agency can be analyzed individually but not comprehended separately: organizational members (middle managers, in this study) who take an active part in DL act as agents within the organizational structure, who respond to, utilize and shape structural resources, cultural and social relations in organizations. The whole research comprised two phases (Study 1 and Study 2) and it employed an iterative sequential mixed method approach. More specifically, the aims of the first qualitative phase (documentary study, Study 1) were to explore the structural elements of DL in Middle management and to develop a framework for the empirical investigation of the agentic dimension (Study 2). Instead, using surveys and interviews, Study 2 adopted an explanatory sequential mixed method approach in order to investigate DL forms of configuration in both sectors and, in particular, how different levels of middle management involvement in leadership distribution are affected by and/or affect organizational and individual dimensions in both sectors. So far, Malta has little research on this in either the education, or in the business sectors so this project, by seeking data from both sectors, adds to local studies and to international comparative management studies research on DL, MM and effects of differing organizational cultures. In addition, cross- sector comparisons in MM offered unique possibilities for combining analyses of variations within dependent and independent variables, improving the foundation for new theoretical developments about the DL construct and its operalization.
Comparing the Overhead of Topological and Concatenated Quantum Error Correction
Creators: name: Suchara, Martin
name: Faruque, Arvin
name: Lai, Ching-Yi
name: Paz, Gerardo
name: Chong, Frederic T.
name: Kubiatowicz, John
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This work compares the overhead of quantum error correction with concatenated and topological quantum error-correcting codes. To perform a numerical analysis, we use the Quantum Resource Estimator Toolbox (QuRE) that we recently developed. We use QuRE to estimate the number of qubits, quantum gates, and amount of time needed to factor a 1024-bit number on several candidate quantum technologies that differ in their clock speed and reliability. We make several interesting observations. First, topological quantum error correction requires fewer resources when physical gate error rates are high, white concatenated codes have smaller overhead for physical gate error rates below approximately 10E-7. Consequently, we show that different error-correcting codes should be chosen for two of the studied physical quantum technologies - ion traps and superconducting qubits. Second, we observe that the composition of the elementary gate types occurring in a typical logical circuit, a fault-tolerant circuit protected by the surface code, and a fault-tolerant circuit protected by a concatenated code all differ. This also suggests that choosing the most appropriate error correction technique depends on the ability of the future technology to perform specific gates efficiently.
How does gender non-conformity intolerance impact homonegativity? An exploration of attitudes and behaviours towards lesbians.
Creators: name: Author, Unknown
Publisher: name: University of Lincoln
Year: 2023

description: The current research explores the importance of including gender non-conformity prejudice within research on negative attitudes and behaviours towards lesbians. The connectivity between lesbian homosexuality and masculine presentation are considered, as previous research has consistently shown that sexuality incongruity to the prescribed norm, prescribed incongruent gender presentation (Greene, 2007). The theory of heteronormativity, which conceptualises prescribed societal sexuality and genders norms (Habarth, 2015), themes this body of work. Across two studies, the impact of gender role beliefs and gender presentation on homonegativity was explored, to demonstrate the complexity of variable relationships effecting homonegative attitudes and behaviour. In the first study, experimental design used four vignettes (masculine presenting homosexual, feminine presenting homosexual and vice versa heterosexual women) to identify gender presentation and sexuality main effects and interactions. Using an online opportunity sample (n = 282). Results showed that vignettes with masculine appearance scored higher for passive harm and homosexual vignettes were scored higher for active harm. The second study explored attitudinal and behaviour variable relationships again using an opportunity sample (n = 385). Results showed that the heteronormativity scale (assumptions that gender binary and heterosexuality are normative) reduced positive behaviour towards homosexuals, through social distancing. Results also showed that the effect gender non-conformity prejudice has on discriminatory behaviour, is fully mediated by sexuality prejudice. Together, both studies show the complex relationships between gender non-conformity and sexuality prejudice. Conclusions drawn encourage further investigation of intersectional identities and promotes effective directions for future work in regards to reducing discriminatory behaviour and studying homonegative attitudes.
Ground-based transit observations of the super-Earth GJ 1214b
Creators: name: Caceres, Claudio
name: Kabath, Petr
name: Hoyer, Sergio
name: Ivanov, Valentin D.
name: Rojo, Patricio
name: Girard, Julien H.
name: Kempton, Eliza Miller-Ricci
name: Fortney, Jonathan J.
name: Minniti, Dante
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: GJ 1214b is one of the few known transiting super-Earth-sized exoplanets with a measured mass and radius. It orbits an M-dwarf, only 14.55 pc away, making it a favorable candidate for follow-up studies. However, the composition of GJ 1214b's mysterious atmosphere has yet to be fully unveiled. Our goal is to distinguish between the various proposed atmospheric models to explain the properties of GJ 1214b: hydrogen-rich or hydrogen-He mix, or a heavy molecular weight atmosphere with reflecting high clouds, as latest studies have suggested. Wavelength-dependent planetary radii measurements from the transit depths in the optical/NIR are the best tool to investigate the atmosphere of GJ 1214b. We present here (i) photometric transit observations with a narrow-band filter centered on 2.14 microns and a broad-band I-Bessel filter centered on 0.8665 microns, and (ii) transmission spectroscopy in the H and K atmospheric windows that cover three transits. The obtained photometric and spectrophotometric time series were analyzed with MCMC simulations to measure the planetary radii as a function of wavelength. We determined radii ratios of 0.1173 for I-Bessel and 0.11735 at 2.14 microns. Our measurements indicate a flat transmission spectrum, in agreement with last atmospheric models that favor featureless spectra with clouds and high molecular weight compositions.
description: 10 pages, 13 figures. Accepted for publication in A&A
QED cascade induced by high energy $γ$ photon in strong laser field
Creators: name: Tang, Suo
name: Bake, Muhammad Ali
name: Wang, Hong-Yu
name: Xie, Bai-Song
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The QED cascade induced by the two counter-propagating lasers is studied. It is demonstrated that the probability of a seed-photon to create a pair is much larger than that of a seed-electron. By analyzing the dynamic characteristics of the electron and positron created by the seed-photon, it is found that the created particles are more probable to emit photons than the seed-electron. With these result, further more, we also demonstrate that the QED cascade can be easier to be triggered by the seed-photon than by the seed-electron with the same incident energy and the same laser.
description: 15 pages, 6 figures, submitted to Phys. Rev. D