cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
J of Applied Microbiology - 2020 - Gut dysbacteriosis and intestinal disease mechanism and treatment-2.pdf
Creators: name: Meng, X.
name: Zhang, G.
name: Cao, H.
name: Yu, D.
name: Fang, X.
name: Vos, W. M. de
name: Wu, H.
Publisher: name: Health Research Alliance
Year: 2024
Subjects: classificationCode: 310702
subject: Infectious agents

description: The gut microbiome functions like an endocrine organ, generating bioactive
metabolites, enzymes or small molecules that can impact host physiology. Gut
dysbacteriosis is associated with many intestinal diseases including (but not
limited to) inflammatory bowel disease, primary sclerosing cholangitis-IBD,
irritable bowel syndrome, chronic constipation, osmotic diarrhoea and
colorectal cancer. The potential pathogenic mechanism of gut dysbacteriosis
associated with intestinal diseases includes the alteration of composition of gut
microbiota as well as the gut microbiota–derived signalling molecules. The
many correlations between the latter and the susceptibility for intestinal
diseases has placed a spotlight on the gut microbiome as a potential novel
target for therapeutics. Currently, faecal microbial transplantation, dietary
interventions, use of probiotics, prebiotics and drugs are the major therapeutic
tools utilized to impact dysbacteriosis and associated intestinal diseases. In this
review, we systematically summarized the role of intestinal microbiome in the
occurrence and development of intestinal diseases. The potential mechanism of
the complex interplay between gut dysbacteriosis and intestinal diseases, and
the treatment methods are also highlighted.
Tęstiniai (longitudiniai) duomenys: Taikymas ir naudojimas NVO, valstybės tarnautojams, politikams, žurnalistams ir mokytojams, kitiems duomenų naudotojams
Creators: name: Dirsytė, Irma
Publisher: name: Zenodo
Year: 2023
Subjects: tęstiniai
longitudiniai
duomenys
GGS
ESS
EUSILC
gyvenimo
kelio
perspektyva
COORDINATE

description: Skaidrės, skirtos mokymams apie tęstinius (longitudinius) duomenis nemokslininkams. 

Material for the COORDINATE project workshop on "Introductory Course on Longitudinal and Cohort Data to Non-Scientific Users' in Lithuanian.
Radio jet interactions in the radio galaxy PKS 2152-699
Creators: name: Fosbury, R. A. E.
name: Morganti, R.
name: Wilson, W.
name: Ekers, R. D.
name: Alighieri, S. di Serego
name: Tadhunter, C. N.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present radio observations of the radio galaxy PKS 2152-699 obtained with the Australia Telescope Compact Array (ATCA). The much higher resolution and s/n of the new radio maps reveals the presence of a bright radio component about 10 arcsec NE of the nucleus. This lies close to the highly ionized cloud previously studied in the optical and here shown in a broadband red snapshot image with the HST PC2. It suggests that PKS 2152-699 may be a jet/cloud interaction similar to 3C277.3. This could cause the change in the position angle (of ~20 deg) of the radio emission from the inner to the outer regions. On the large scale, the source has Fanaroff & Riley type II morphology although the presence of the two hot-spots in the centres of the lobes is unusual. The northern lobe shows a particularly relaxed structure while the southern one has an edge-brightened, arc-like structure.
description: 7 pages, 5 encapsulated figures, 1 JPEG figure, accepted for MNRAS
title: Nanaimo slides map
Creators: name: (:Unkn) Unknown
Publisher: name: Electronic version published by Vancouver Island University
Year: 2021
Subjects: subject: Nanaimo (B.C.)--History

description: The Nanaimo Slide Collection Map showcases the various historical locations found in the Nanaimo Slide Collection. These digitized slides feature people and places in Nanaimo during the years 1875-1945.
Oral history interview with Livia Lengyel, 1986
Publisher: name: Columbia University
Year: 2020
Subjects: Hungarian Americans
World War, 1914-1918--Prisoners and prisons
Emigration and immigration

description: Reminiscences on life of husband, Emil Lengyel; family history; husband's service in World War I and time in Russia as prisoner-of-war; husband's education; husband's emigration to United States; his first work experience; early literary efforts; lecturing experiences; teaching experiences; travels in Europe; professional correspondences; fundraising during World War II for Hungarian emigration
Optimal LQG Control under Delay-dependent Costly Information
Creators: name: Maity, Dipankar
name: Mamduhi, Mohammad H.
name: Hirche, Sandra
name: Johansson, Karl Henrik
name: Baras, John S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optimization and Control (math.OC)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: In the design of closed-loop networked control systems (NCSs), induced transmission delay between sensors and the control station is an often-present issue which compromises control performance and may even cause instability. A very relevant scenario in which network-induced delay needs to be investigated is costly usage of communication resources. More precisely, advanced communication technologies, e.g. 5G, are capable of offering latency-varying information exchange for different prices. Therefore, induced delay becomes a decision variable. It is then the matter of decision maker's willingness to either pay the required cost to have low-latency access to the communication resource, or delay the access at a reduced price. In this article, we consider optimal price-based bi-variable decision making problem for single-loop NCS with a stochastic linear time-invariant system. Assuming that communication incurs cost such that transmission with shorter delay is more costly, a decision maker determines the switching strategy between communication links of different delays such that an optimal balance between the control performance and the communication cost is maintained. In this article, we show that, under mild assumptions on the available information for decision makers, the separation property holds between the optimal link selecting and control policies. As the cost function is decomposable, the optimal policies are efficiently computed.
Vacuum Polarization and Chiral Lattice Fermions
Creators: name: Randjbar--Daemi, S.
name: Strathdee, J.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The vacuum polarization due to chiral fermions on a 4--dimensional Euclidean lattice is calculated according to the overlap prescription. The fermions are coupled to weak and slowly varying background gauge and Higgs fields, and the polarization tensor is given by second order perturbation theory. In this order the overlap constitutes a gauge invariant regularization of the fermion vacuum amplitude. Its low energy -- long wavelength behaviour can be computed explicitly and we verify that it coincides with the Feynman graph result obtainable, for example, by dimensional regularization of continuum gauge theory. In particular, the Standard Model Callan--Symanzik RG functions are recovered. Moreover, there are no residual lattice artefacts such as a dependence on Wilson--type mass parameters.
description: 23 pages, LaTeX
Additional file 13: of Deep proteomic network analysis of Alzheimerâ s disease brain reveals alterations in RNA binding proteins and RNA splicing associated with disease
Creators: name: Johnson, Erik
name: Dammer, Eric
name: Duong, Duc
name: Luming Yin
name: Thambisetty, Madhav
name: Troncoso, Juan
name: Lah, James
name: Levey, Allan
name: Seyfried, Nicholas
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology

description: Figure S6. Cell Type Population Changes Associated with AD and Correlation with Amyloid and Tau Pathology. The abundance of cell type-specific protein markers of astrocytes, microglia, neurons, and oligodendrocytes (oligos) was used to calculate the percentage of each cell type in control, asymptomatic AD (AsymAD), and AD brain tissue (see Methods). Percentage cell type was then correlated with the degree of neuritic amyloid plaque pathology (CERAD Amyloid Score) and tau tangle burden (Braak Stage) across all brains. (PDF 141Â kb)
Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model
Creators: name: Blesio, G. G.
name: Manuel, L. O.
name: Roura-Bas, P.
name: Aligia, A. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study a generalized Anderson model that mixes two localized configurations --one formed by two degenerate doublets and the other by a triplet with single-ion anisotropy $DS_z^2$-- by means of two degenerate conduction channels. The model has been derived for a single Ni impurity embedded into an O-doped Au chain. Using the numerical renormalization group, we find a topological quantum phase transition, at a finite value $D_c,$ between two regular Fermi liquid phases of high (low) conductance and topological number $2 I_L/π= 0$ (-1) for $D < D_c$ ($D > D_c$), where $I_L$ is the well-known Luttinger integral. At finite temperature the two phases are separated by a non-Fermi liquid phase with fractional impurity entropy $\frac{1}{2}{\rm ln}2$ and other properties which remind those of the two-channel Kondo model.
description: 6 pages + Supplemental Material, 8 figures
Friendship, Connection and Loss: Everyday Digital Kinning and Digital Homing among Chinese Transnational Grandparents in Perth, Australia
Creators: name: Stevens, Catriona
name: Baldassar, Loretta
name: Wilding, Raelene
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 470411
subject: Sociolinguistics
classificationCode: 470102
subject: Communication technology and digital media studies

description: This chapter explores how practices of digital kinning and digital homing enacted through smartphones shape the experiences of Chinese older adults in Perth, Australia. Transnational grandparent carers must balance the risks of diminished social networks with the benefits of providing intergenerational care. Some form strong friendships in Perth, but many yearn for a leisured life with their friends in China. Findings illustrate the central role of digital migration practices in transnational families and friendships, not only sustaining distant support networks, but also building new communities in host settings. However, for some, the co-presence afforded through WeChat may intensify feelings of loss and dislocation. Observing these digital practices reveals the emotional geographies that characterize the lives of aged migrants and transnational caregivers.
Single Crystal High Entropy Perovskite Oxide Epitaxial Films
Creators: name: Sharma, Yogesh
name: Musico, Brianna L.
name: Gao, Xiang
name: Hua, Chengyun
name: May, Andrew F.
name: Herklotz, Andreas
name: Rastogi, Ankur
name: Mandrus, David
name: Yan, Jiaqiang
name: Lee, Ho Nyung
name: Chisholm, Matthew F.
name: Keppens, Veerle
name: Ward, T. Zac
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The first examples of single crystal epitaxial thin films of a high entropy perovskite oxide are synthesized. Pulsed laser deposition is used to grow the configurationally disordered ABO3 perovskite, Ba(Zr0.2Sn0.2Ti0.2Hf0.2Nb0.2)O3, epitaxially on SrTiO3 and MgO substrates. X-ray diffraction and scanning transmission electron microscopy demonstrate that the films are single phase with excellent crystallinity and atomically abrupt interfaces to the underlying substrates. Atomically-resolved electron energy loss spectroscopy mapping shows a uniform and random distribution of all B-site cations. The ability to stabilize perovskites with this level of configurational disorder offers new possibilities for designing materials from a much broader combinatorial cation pallet while providing a fresh avenue for fundamental studies in strongly correlated quantum materials where local disorder can play a critical role in determining macroscopic properties.
Oral history interview with Lisbeth Schorr and Leonard Lesser 1967
Publisher: name: Columbia University
Year: 2019
Subjects: Health insurance
Social security--Law and legislation
Social security--United States
Labor unions--Officials and employees

description: Role of AFL-CIO in health insurance and social security programs from 1958; legislation in Eisenhower, Kennedy, and Johnson administrations; relationship with American Medical Association.
title: ADCO, Cart. 186 (11 H 71), f. 0341v
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: LaMOP
subject: Chartes de la Bourgogne du Moyen Âge
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, t. II (XVe siècle), tome II, Archives départementales de la Côte-d'Or, C
art. 186 (11 H 71). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, t. II (XVe siècle), tome II, Archives départementales de la
 Côte-d'Or, Cart. 186 (11 H 71), f. 0341v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-
project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
BigDataStack - D5.1 WP 5 Scientific Report and Prototype Description - Y1
Creators: name: Amaryllis Raouzaiou
name: Giannakakis, Konstantinos
name: Kousiouris, George
name: Karagiorgou, Sophia
name: Lykousas, Nikos
name: Kranas, Pavlos
name: Vilaça, Ricardo Manuel Pereira
name: Roldan, Jacob
name: Ballesteros, Francisco
name: Martinez, Patricio
name: Doulkeridis, Christos
name: Gould, Peter Jason
name: Cordero, Ismael Cuadrado
name: Avila-García, Orlando
name: Patiño, Marta
name: McCreadie, Richard
name: Plitsos, Stathis
Publisher: name: Zenodo
Year: 2020

description: BigDataStack delivers a complete high-performant stack of technologies addressing the needs of data operations and applications. BigDataStack’s holistic solution incorporates approaches for data-focused application analysis and dimensioning, and process modelling towards increased performance, agility and efficiency. A toolkit allowing the specification of analytics tasks in a declarative way, their integration in the data path, as well as an adaptive visualization environment, realize BigDataStack’s vision of openness and extensibility.
description: {"references": ["https://nodered.org/", "https://github.com/node-red/node-red", "X. Tian et al., \"BigDataBench-S: An Open-Source Scientific Big Data Benchmark Suite,\" 2017 IEEE International Parallel and Distributed Processing Symposium Workshops (IPDPSW), Lake Buena Vista, FL, 2017, pp. 1068-1077.", "Ivanov et al., \"Big Data Benchmark Compendium\", Performance Evaluation and Benchmarking: Traditional to Big Data to Internet of Things, Springer International Publishing, 2016, pp. 135-155.", "https://www.cs.waikato.ac.nz/ml/weka/", "https://spark.apache.org/mllib/", "https://www.gnu.org/software/octave/", "https://www.ansible.com/", "https://www.dropwizard.io/", "Pavel Brazdil, Christophe G. Giraud-Carrier, Carlos Soares, Ricardo Vilalta: Metalearning - Applications to Data Mining. Cognitive Technologies, Springer 2009, ISBN 978-3-540- 73262-4, pp. I-X, 1-176", "METAL: A meta-learning assistant for providing user support in machine learning and data mining. ESPRIT Framework IV LTR Reactive Project Nr. 26.357, 1998-2001. http://www.metal-kdd.org.", "K. Morik and M. Scholz. The MiningMart approach to knowledge discovery in databases. In N. Zhong and J. Liu, editors, Intelligent Technologies for Information Analysis, chapter 3, pages 47\u201365. Springer, 2004. Available from http://www-ai.cs.unidortmund.de/MMWEB.", "Kate Smith-Miles: Cross-disciplinary perspectives on meta-learning for algorithm selection. ACM Comput. Surv. 41(1): 6:1-6:25 (2008).", "Mustafa V. Nural, Hao Peng, John A. Miller: Using meta-learning for model type selection in predictive big data analytics. BigData 2017: 2027-2036.", "Daniel Gomes Ferrari, Leandro Nunes de Castro: Clustering algorithm selection by metalearning systems: A new distance-based problem characterization and ranking combination methods. Inf. Sci. 301: 181-194 (2015).", "https://d3js.org/", "https://www.highcharts.com/", "https://www.chartjs.org/"]}
Diffraction Investigations of High Temperature Shape Memory Alloys
Creators: name: Azeem, Mohammed Abdul
Publisher: name: Imperial College London
Year: 2013

description: Shape memory alloys are intermetallic materials with a unique ability to revert to a predefined physical shape by virtue of diffusionless transformations. Recent interest by aerospace and automotive industries to exploit the functionalities of these materials in future energy efficient designs has renewed scientific research in this field. However, the current understanding of transformation hysteresis is inhibited by experimental difficulties associated with viewing the transformations and therefore most of our knowledge is confined to symptomatic bulk properties such as those accessible from calorimetry and dilatometry. In the current study, in situ synchrotron X-ray diffraction (SXRD) was used to accurately document the adaptability of unit cells of participating phases during transformation in a series of high temperature shape memory alloys (HTSMAs). Selected alloys based on NiTi, ZrCu and NiMnGa systems were prepared in vacuum arc melter, homogenized and rolled to grain size adequate for SXRD experiments. The resulting diffraction patterns were Rietveld refined and the evolution of unit cell parameters of participating phases were recorded as a function of temperature. It was observed that the lattices of participating phases undergo a significant overall dilation during transformation. The lower symmetry martensite unit cell was observed to undergo unprecedented anisotropic strains, reaching as high as 1.2% in certain alloys. The high temperature higher symmetry austenite was observed to complement the changes in martensite lattice during heating and vice versa was observed during cooling. These changes were mostly observed in final stages of transformation. Surprisingly, a negative coefficient of thermal expansion was observed in the b lattice parameter of the monoclinic martensite in NiTi based alloys. The implications of such strains on the current phenomenological martensitic transformation models that takes into consideration lattice parameters away from the transformation regime for prediction of orientation between participating phases has been discussed.
Influencia de la violencia escolar en el desarrollo de aprendizajes: análisis desde la teoría del aprendizaje social de Bandura
Creators: name: Muñoz-Escobar, Catalina
Publisher: name: Zenodo
Year: 2024

description: La violencia escolar se sustenta en el abuso de poder y desigualdad, siendo un comportamiento aprendido e intencionado a maltratar y/o controlar. En este escrito el concepto de violencia será entendido como todo acto de agresión constante, efectuado por un estudiante hacia otro estudiante, aquella situación de violencia se valida de esa manera, en el momento que exista maltrato, humillación y temor. Para comprender la manera que el acoso escolar puede afectar a los estudiantes en su proceso de enseñanza es necesario mencionar y explicar los roles de cada uno de los participantes de violencia, los tipos de violencia y los factores de riesgo. Igualmente, la información será analizada tomando como base la Teoría del Aprendizaje Social de Bandura, quien aporta una perspectiva primordial para entender cómo la violencia escolar puede afectar los aprendizajes significativos de los educandos. Se concluye que, la violencia escolar es un problema a nivel mundial, que se debe manejar de la manera más asertiva y definitiva posible, creando reglamentos escolares que atiendan esta necesidad y educando a los docentes para controlar una situación de agresión en el centro educativo y acogiendo a todos los roles involucrados en el momento.
MOESM2 of The methylome of the marbled crayfish links gene body methylation to stable expression of poorly accessible genes
Creators: name: Gatzmann, Fanny
name: Falckenhayn, Cassandra
name: Gutekunst, Julian
name: Hanna, Katharina
name: GĂźnter Raddatz
name: Vitor Carneiro
name: Lyko, Frank
Publisher: name: figshare
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Whole-genome bisulfite sequencing details.
Mock 2dF and SDSS galaxy redshift surveys
Creators: name: Cole, Shaun
name: Hatton, Steve
name: Weinberg, David H.
name: Frenk, Carlos S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a comprehensive set of mock 2dF and SDSS galaxy redshift surveys constructed from a set of large, high-resolution cosmological N-body simulations. The radial selection functions and geometrical limits of the catalogues mimic those of the genuine surveys. The catalogues span a wide range of cosmologies, including both open and flat universes. In all the models the galaxy distributions are biased so as to approximately reproduce the observed galaxy correlation function on scales of 1--10 Mpc/h In some cases models with a variety of different biasing prescriptions are included. All the mock catalogues are publically available at http://star-www.dur.ac.uk/~cole/mocks/main.html . We expect these catalogues to be a valuable aid in the development of the new algorithms and statistics that will be used to analyse the 2dF and SDSS surveys when they are completed in the next few years. Mock catalogues of the PSCZ survey of IRAS galaxies are also available at the same WWW location.
description: Accepted by MNRAS after minor revisions. All the mock catalogues presented and related information and software are available at http://star-www.dur.ac.uk/~cole/mocks/main.html . This WWW site also contains versions of this paper with high resolution (and colour) figures and many other figures illustrating the 2dF and SDSS surveys
Thermally driven convection in Li||Bi liquid metal batteries
Creators: name: Personnettaz, Paolo
name: Beckstein, Pascal
name: Landgraf, Steffen
name: Köllner, Thomas
name: Nimtz, Michael
name: Weber, Norbert
name: Weier, Tom
Publisher: name: arXiv
Year: 2018
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Liquid Metal Batteries (LMBs) are a promising concept for cheap electrical energy storage at grid level. These are built as a stable density stratification of three liquid layers, with two liquid metals separated by a molten salt. In order to ensure a safe and efficient operation, the understanding of transport phenomena in LMBs is essential. With this motivation we study thermal convection induced by internal heat generation. We consider the electrochemical nature of the cell in order to define the heat balance and the operating parameters. Moreover we develop a simple 1D heat conduction model as wellas a fully 3D thermo-fluid dynamics model. The latter is implemented in the CFD library OpenFOAM, extending the volume of fluid solver, and validated against a pseudo-spectral code. Both models are used to study a rectangular 10x10 cm Li||Bi LMB cell at three different states of charge.
A Corpus-based Study of the English Translation of Chinese Empty Words
Creators: name: Chen, Yi-Chiao
Publisher: name: Imperial College London
Year: 2013

description: This study aims to investigate the translation procedures adopted for the English translation of Chinese empty words. To begin with, the methods which translators adopt to tackle empty words are identified by examining examples in a specially-constructed parallel corpus, which includes Chinese literary texts and their English translations. Eventually, eight translation procedures (1) Match; 2) Paraphrase; 3) Shared Match; 4) Implicitation; 5) Amplification; 6) Grammatical Conveyance; 7) Borrowing; 8) Omission) and one non-procedure (Mismatch) are identified. It is noted that Grammatical Conveyance is a procedure which could be deemed as a newly-identified method. As a further step, the proportion of these procedures/non-procedure is investigated to identify the most-/least-adopted ones (Match and Amplification respectively) and to discuss category-specific ones (Shared Match and Borrowing). In addition to identifying the procedures for translating Chinese empty words into English, this research also makes contributions in the following two aspects. Firstly, this study, to my knowledge, is the first research which examines all Chinese empty words at a time to identify the ways translators tackle them. Secondly, it is known from the results that difficult-to-tackle empty words are found in the categories of Adverb and Particle. In other words, not all empty words are difficult to translate as former scholars have described.
Value of flexible demand-side technologies in future low-carbon systems
Creators: name: Aunedi, Marko
Publisher: name: Imperial College London
Year: 2013

description: Decarbonisation of energy supply in future low-carbon systems is expected to entail two key components: a rapid increase in the capacity of intermittent renewable generation and other low-carbon sources, and the electrification of heat and transport demand, i.e. large-scale deployment of electric vehicles and heat pumps. Both of these components are expected to impose a significant demand for additional flexibility, particularly for ancillary services associated with system balancing, while leading to additional system costs due to the degradation in generation and network infrastructure utilisation, reduced efficiency of real-time operation, and the need for network reinforcement. In this thesis a computationally efficient annual generation scheduling algorithm is developed to assess the economic and environmental performance of low-carbon systems characterised by a high penetration of intermittent renewable capacity. The algorithm performs a simultaneous optimisation of electricity generation and the provision of ancillary services such as operating reserve and frequency response. The results of applying the model to future GB system with high wind penetration indicate that the cost of wind integration in may be very high, particularly in cases when there is less flexibility available from conventional generators. The thesis proceeds to develop methodological approaches to establish system benefits that could be achieved by deploying a range of Flexible Demand (FD) technologies – Heating, Ventilation and Air Conditioning (HVAC) systems, electric vehicles, residential heat pumps or smart domestic appliances – which are all capable of altering their baseline electricity consumption profile in order to improve system operation. Detailed bottom-up models developed in the thesis characterise the behaviour patterns of FD users, establishing a link between the useful service provided by flexible devices and the resulting electricity demand pattern, while also ensuring the level of service expected by the users is not compromised as a result FD participation. A broad range of potential applications of FD has been analysed in the thesis towards a more efficient performance of future electricity systems. Key system-level benefits of deploying FD include the improved long-term system security, more efficient system balancing and ancillary services, and improved utilisation of generation and network capacity. The results suggest that system-level benefits of FD can be substantial, particularly in systems with scarce operational flexibility, such as those based on very high contribution of intermittent renewable electricity, and those accommodating a significant share of electrified transport and heating demand.
Distributed Consensus in Networks
Creators: name: Babaee, Arta
Publisher: name: Imperial College London
Year: 2013

description: Distributed algorithms have gained a lot of attention during recent years. Their application in industry, particularly in wireless sensor networks has motivated researchers to try to design them in order to be less resource-consuming (e.g. memory and power), faster, and more reliable. There have been numerous distributed algorithms for different types of problems in the context of distributed algorithms. We are interested in a fundamental coordination problem namely the majority consensus problem. In the majority consensus problem nodes try to find the opinion of the majority in a network of interest. As our first contribution and motivated by the distributed binary consensus problem in [1] we propose a distributed algorithm for multivalued consensus in complete graphs. As our second contribution we propose an algorithm for the optimization of the binary interval consensus algorithm pioneered by Ben ezit et al in [2]. Finally we use binary interval consensus algorithm to design a framework for error-free consensus in dynamic networks using which nodes can leave or join the network during or after the consensus process.
Asymptotic algebra for charged particles and radiation
Creators: name: Herdegen, Andrzej
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A C*-algebra of asymptotic fields which properly describes the infrared structure in quantum electrodynamics is proposed. The algebra is generated by the null asymptotic of electromagnetic field and the time asymptotic of charged matter fields which incorporate the corresponding Coulomb fields. As a consequence Gauss' law is satisfied in the algebraic setting. Within this algebra the observables can be identified by the principle of gauge invariance. A class of representations of the asymptotic algebra is constructed which resembles the Kulish-Faddeev treatment of electrically charged asymptotic fields.
description: 28 pages, LaTeX; minor corrections, a reference added
Software Performance Engineering using Virtual Time Program Execution
Creators: name: Baltas, Nikolaos
Publisher: name: Imperial College London
Year: 2013

description: In this thesis we introduce a novel approach to software performance engineering that is based on the execution of code in virtual time. Virtual time execution models the timing-behaviour of unmodified applications by scaling observed method times or replacing them with results acquired from performance model simulation. This facilitates the investigation of "what-if" performance predictions of applications comprising an arbitrary combination of real code and performance models. The ability to analyse code and models in a single framework enables performance testing throughout the software lifecycle, without the need to to extract performance models from code. This is accomplished by forcing thread scheduling decisions to take into account the hypothetical time-scaling or model-based performance specifications of each method. The virtual time execution of I/O operations or multicore targets is also investigated. We explore these ideas using a Virtual EXecution (VEX) framework, which provides performance predictions for multi-threaded applications. The language-independent VEX core is driven by an instrumentation layer that notifies it of thread state changes and method profiling events; it is then up to VEX to control the progress of application threads in virtual time on top of the operating system scheduler. We also describe a Java Instrumentation Environment (JINE), demonstrating the challenges involved in virtual time execution at the JVM level. We evaluate the VEX/JINE tools by executing client-side Java benchmarks in virtual time and identifying the causes of deviations from observed real times. Our results show that VEX and JINE transparently provide predictions for the response time of unmodified applications with typically good accuracy (within 5-10%) and low simulation overheads (25-50% additional time). We conclude this thesis with a case study that shows how models and code can be integrated, thus illustrating our vision on how virtual time execution can support performance testing throughout the software lifecycle.
Reminiscences
Creators: name: Sakita, Bunji
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Reminiscences of Bunji Sakita.
description: Published in "A Quest for Symmetry," Selected Works of Bunji Sakita. Eds.: Keiji Kikkawa, Miguel Virasoro, Spenta Wadia. Published by World Scientific
Novel and Improved Stage Estimation in Parkinson's Disease using Clinical Scales and Machine Learning
Creators: name: Prashanth, R.
name: Roy, Sumantra Dutta
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The stage and severity of Parkinson's disease (PD) is an important factor to consider for taking effective therapeutic decisions. Although the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) provides an effective instrument evaluating the most pertinent features of PD, it does not allow PD staging. On the other hand, the Hoehn and Yahr (HY) scale which provides staging, does not evaluate many relevant features of PD. In this paper, we propose a novel and improved staging for PD using the MDS-UPDRS features and the HY scale, and developing prediction models to estimate the stage (normal, early or moderate) and severity of PD using machine learning techniques such as ordinal logistic regression (OLR), support vector machine (SVM), AdaBoost- and RUSBoost-based classifiers. Along with this, feature importance in PD is also estimated using Random forests. We observe that the predictive models of SVM, Adaboost-based ensemble, Random forests and probabilistic generative model performed well with the AdaBoost-based ensemble giving the highest accuracy of 97.46%. Body bradykinesia, tremor, facial expression (hypomimia), constancy of rest tremor and handwriting (micrographia) were observed to be the most important features in PD. It is inferred that MDS-UPDRS combined with classifiers can form effective tools to predict PD staging which can aid clinicians in the diagnostic process.
description: Article accepted in the Neurocomputing journal
Additional file 1: of The Italian neuromuscular registry: a coordinated platform where patient organizations and clinicians collaborate for data collection and multiple usage
Creators: name: Ambrosini, Anna
name: Calabrese, Daniela
name: Avato, Francesco
name: Catania, Felice
name: Cavaletti, Guido
name: Pera, Maria
name: Toscano, Antonio
name: Vita, Giuseppe
name: Monaco, Lucia
name: Pareyson, Davide
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Hematology
subject: Computational Biology

description: Working Groups â affiliations (DOCX 16 kb)
MobiDataLab D4.3 Reference Data Catalogue V1
Creators: name: CHEVALLIER, Thierry
name: DE-RYCK, Didier
name: MECHYAKHA, Hiba
name: NGUYEN, Huy Minh
name: OBREGON-GONZALES, Renée
name: SIGHOKO, Sorel
Publisher: name: Zenodo
Year: 2022
Subjects: CKAN
metadata storage
harvesting
data catalogue
OpenDataSoft
GeoNetwork
Multilingual management
Solr
PostgerSQL
database
transport cloud
GTFS
open data
Elasticsearch
CSV
CSW
DCAT
GIS
SaaS
OGC
WFS
WMS
KPI
FAIR

description: The deliverable D4.3 is a report providing an overview on the version 1 of the MobiDataLab datacatalogue. This integrated catalogue built on CKAN, GeoNetwork and OpenDataSoft solutions,references all open transport datasets and corresponding metadata in the territorial context andspecific domains of the “Reference Group” of MobiDataLab stakeholders.
Controlling the interstitial element concentration in Ti-6Al-4V using calciothermic reduction
Creators: name: Moorhouse, Benjamin
Publisher: name: Imperial College London
Year: 2013

description: The production of Ti-6Al-4V components via powder metallurgy routes is looked upon as an efficient production method that reduces wastage, but leaves finished products with high interstitial oxygen concentrations that do not meet industrial standards. The ability to control the interstitial oxygen concentration in Ti-6Al-4V powder metallurgy would improve the viability of near net shape processing for the production of industrial components. One process that has demonstrated the ability to remove oxygen from titanium alloys is calciothermic reduction, which is a reduction process originally developed to reduce titanium dioxide to commercial purity titanium using a molten flux of calcium and calcium chloride. The aim of this thesis is to examine whether calciothermic reduction can be used to control the interstitial concentration of oxygen and nitrogen in powder metallurgy Ti-6Al-4V and understand the reaction mechanisms that enable this process to work. By understanding these mechanisms, the process can then be optimised to improve the properties of powder metallurgy Ti-6Al-4V components, and provide a basis to extend this to other alloy systems. Calciothermic reduction was demonstrated to be effective at reducing the interstitial oxygen concentration in powder metallurgy Ti-6Al-4V to acceptable industrial standards (< 2,000 wt .ppm). The optimisation of the process required the balance of thermodynamics and kinetics to be controlled; thermodynamics was important to ensuring the reaction would begin, with the kinetics becoming more important during the reduction process because the removal of interstitial oxygen concentration relied upon a diffusion based mechanism. Evaluation of the mechanism that underpins the removal of oxygen via calciothermic reduction, was assessed using a FIB-SIMS based technique. This method of analysis was developed during this research and demonstrated to be effective at quantifying interstitial oxygen concentrations in titanium alloy, which was used to confirm the formation of oxygen concentration gradients from titanium alloy bulk to the surface during calciothermic reduction. Further investigation of the reduction process indicated that calciothermic reduction could facilitate the nitriding of Ti-6Al-4V in a sealed air environment, forming a wear resistant surface layer in a novel process referred to as “Calciothermic Assisted Immersion Nitriding” (CAIN). The nitriding process produced a consistent TiCxNyOZ surface layer where the chemical composition of the layer developed in a three stage reaction involving the inward diffusion of interstitial carbon and nitrogen, whilst oxygen was removed from the surface. This surface layer improved the tribological properties of the Ti-6Al-4V samples by changing the wear mechanism from adhesive to abrasive, which resulted in an increased wear resistance, which was comparable to a commercial produced, physical vapour deposition TiCN coating.
Toda Lattice Models with Boundary
Creators: name: Fujii, Akira
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the soliton solutions in 1- and (1+1)-dimensional Toda lattice models with a boundary. We make use of the solutions already known on a full line by means of the Hirota's method. We explicitly construct the solutions satisfying the boundary conditions. The ${\bf Z}_{\infty}$-symmetric boundary condition can be introduced by the two-soliton solutions naturally.
description: 9 pages, latex, no figures
Exploring polyethylene degrading capabilities of bacteria using bioprospecting and synthetic biology
Creators: name: Facey, Fiona Steele Black
Publisher: name: Macquarie University
Year: 2024
Subjects: classificationCode: 310704
subject: Microbial genetics

description: Plastic waste is a massive global problem, causing significant environmental concerns on land and in aquatic environments. Of the > 390 million tonnes of plastics produced in 2021, ~27% was polyethylene (PE), which is particularly difficult to break down and currently is not readily recyclable. Fortunately, larvae of the beehive pest Galleria mellonella are known to efficiently consume PE, but little is known about how this occurs. My first aim of this thesis was to isolate and identify bacteria in the G. mellonella larvae microbiome potentially driving PE degradation. By feeding larvae a PE diet, culturing larval homogenate on PE-containing agar plates and further differential plating, I successfully isolated candidate PE degrading bacteria and used 16S PCR for species identification. Secondarily, I set out to assess the validity of the most well studied PE degrading gene and explore potential new PE-degrading genes, identified previously in my laboratory. For this, I synthesised gene constructs of potential PE-degrading genes and introduced them into non-PE degrading E. coli. For both aims, PE-degradation ability was assessed using various microscopy and chemical methods. Together these approaches provided insight into the PE degradation potential of bacteria, laying a groundwork for further experimentation.
Energy loss of a heavy quark in a hot QCD plasma
Creators: name: Adhya, S. P.
name: Mandal, M.
name: Sarkar, S.
name: Roy, P. K.
name: Chattopadhyay, S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we have studied the collisional energy loss of a heavy quark propagating through a high temperature QCD plasma consisting of both heavy and light quarks to leading logarithmic order in the Quantum Chromodynamics (QCD) coupling constant. The formalism adopted in this work shows a significant enhancement for the charm quark energy loss when the bath particles are also considered to be heavy in addition to light quarks. We know the running coupling constant is dependent on the momentum of the particles and the temperature of the system. Therefore, we have presented a comparison of the energy loss of the charm quark due to scattering with another heavy quark with constant and running coupling constant for different temperatures. The results show a substantial increase of the energy loss when compared to the fixed coupling case.
description: Published in Proceedings of Science (Conference : ICPAQGP-2015); based on arXiv:1408.6705
New materials, regimes and applications of fibre laser technology
Creators: name: Zhang, Meng
Publisher: name: Imperial College London
Year: 2013

description: Nonlinear optics enables the manipulation of spectral and temporal characteristics of optical pulses interacting with a dielectric medium. Optical fibres, as a uniquely practical medium, provide an environment for effectively exploiting the nonlinear effects. This has facilitated the rapid growing interest in this field focused on the investigation of fibrebased sources incorporated with various novel saturable absorber devices for ultrashort pulse generation. This thesis reports a series of experiments exploring the ongoing research in the field of nonlinear optics, including the development of ultrafast mode-locked fibre sources and their applications in supercontinumm generation and third order parametric interactions in new carbon materials. Firstly, the integration of carbon-based materials with rare-earth doped media allows the demonstration of ultrafast mode-locked laser sources operating at wavelengths across the near-infrared region in a compact, low cost and environmentally robust scheme. Power scaling of such sources can be achieved by operating in the all-normal dispersion regime making use of a glass-substrate saturable absorber device that exhibits a higher damage threshold. Supercontinuum generation has been used as an effective method for spectral broadening. Pumping with a conceptually simple and reliable fibre-based system, a continuum covering from 2 to 3 μm is generated in a highly nonlinear GeO2 fibre. This experiment demonstrates a robust and long-term stable source of radiation in an important band, coincident with a portion of the atmospheric transmission window. Finally, the demonstration of a simple and compact nano-material based dual-wavelength system shows the performance of such devices as a simultaneous saturable absorber and passive synchroniser. An experimental study of coherent frequency mixing at large frequency shifts in a graphene sample, pumped by a two-colour fibre-integrated source, proves the strong nonlinear response of this new carbon material.
RXTE Absolute Timing Results for the Pulsars B1821-24 and B1509-58
Creators: name: Rots, A. H.
name: Jahoda, K.
name: Macomb, D. J.
name: Kawai, N.
name: Saito, Y.
name: Kaspi, V. M.
name: Lyne, A. G.
name: Manchester, R. N.
name: Backer, D. C.
name: Somer, A. L.
name: Marsden, D.
name: Rothschild, R. E.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Observations with the Rossi X-ray Timing Explorer and the Jodrell Bank, Parkes, and Green Bank telescopes have enabled us to determine the time delay between radio and X-ray pulses in the two isolated pulsars B1821-24 and B1509-58. For the former we find that the narrow X-ray and radio pulse components are close to being coincident in time, with the radio peak leading by 0.02 period (60 +/- 20 microsec), while the wide X-ray pulse component lags the last of the two wider radio components by about 0.08 period. For the latter pulsar we find, using the standard value for the dispersion measure, that the X-ray pulse lags the radio by about 0.27 period, with no evidence for any energy-dependence in the range 2-100 keV. However, uncertainties in the history of the dispersion measure for this pulsar make a comparison with previous results difficult. It is clear that there are no perceptable variations in either the lag or the dispersion measure at time scales of a year or less.
description: 20 pages including 6 figures, accepted by Astrophysical Journal
Canonical quantization of a particle near a black hole
Creators: name: Siopsis, George
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the quantization of a particle near an extreme Reissner-Nordstrom black hole in the canonical formalism. This model appears to be described by a Hamiltonian with no well-defined ground state. This problem can be circumvented by a redefinition of the Hamiltonian due to de Alfaro, Fubini and Furlan (DFF). We show that the Hamiltonian with no ground state corresponds to a gauge in which there is an obstruction at the boundary of spacetime requiring a modification of the quantization rules. The redefinition of the Hamiltonian a la DFF corresponds to a different choice of gauge. The latter is a good gauge leading to standard quantization rules. Thus, the DFF trick is a consequence of a standard gauge-fixing procedure in the case of black hole scattering.
description: 13 pages, ReVTeX, no figures