cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modelling the environmental and ecological drivers of chytridiomycosis
Creators: name: Doddington, Benjamin
Publisher: name: Imperial College London
Year: 2011

description: Amphibians are the most threatened taxon assessed by the IUCN Red List, with over 42% of all species in decline. The emerging infectious disease chytridiomycosis, caused by the fungus Batrachochytrium dendrobatidis, has been shown to a driver of many of these declines. The broad aim of this thesis is to develop mechanistic models that realistically capture the observed disease dynamics of Bd within Europe, and use these to help understand its ecological and environmental drivers. Mathematical modelling, field work and experimental work are used in order to obtain an understanding of a Bd-host system on Mallorca, and in combination, to show how the host population response to Bd is highly context-dependent. The understanding gained is used to help predict the consequences of an attempt to mitigate (reduce or avoid the negative effects of) Bd in this system, and the mitigation attempt’s short-comings are then analyzed in order to better inform future efforts. The context-dependence of a host-population response to Bd will depend of two components: a component dependent on the host and a component dependent on Bd. Modelling of infection experiment results in the frog species Silurana tropicalis is used to show a temperature-dependent host response which is separate to the temperature-dependent response of Bd. Multi-host models of Bd are created and used to show how increasing species diversity can increase disease risk, and a method of estimating unknown epidemiological parameters for Bd based on known facts about the host’s biology is presented.
Data Synthesis based on Generative Adversarial Networks
Creators: name: Park, Noseong
name: Mohammadi, Mahmoud
name: Gorde, Kshitij
name: Jajodia, Sushil
name: Park, Hongkyu
name: Kim, Youngmin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Databases (cs.DB)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: H.3.4; I.2; K.6.5

description: Privacy is an important concern for our society where sharing data with partners or releasing data to the public is a frequent occurrence. Some of the techniques that are being used to achieve privacy are to remove identifiers, alter quasi-identifiers, and perturb values. Unfortunately, these approaches suffer from two limitations. First, it has been shown that private information can still be leaked if attackers possess some background knowledge or other information sources. Second, they do not take into account the adverse impact these methods will have on the utility of the released data. In this paper, we propose a method that meets both requirements. Our method, called table-GAN, uses generative adversarial networks (GANs) to synthesize fake tables that are statistically similar to the original table yet do not incur information leakage. We show that the machine learning models trained using our synthetic tables exhibit performance that is similar to that of models trained using the original table for unknown testing cases. We call this property model compatibility. We believe that anonymization/perturbation/synthesis methods without model compatibility are of little value. We used four real-world datasets from four different domains for our experiments and conducted in-depth comparisons with state-of-the-art anonymization, perturbation, and generation techniques. Throughout our experiments, only our method consistently shows a balance between privacy level and model compatibility.
description: Full Version - VLDB 2018
Super-Eddington accretion disc around a Kerr black hole
Creators: name: Beloborodov, Andrei M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate the structure of accretion disc around a rapidly rotating black hole with a super-Eddington accretion rate. The luminosity and height of the disc are reduced by the advection effect. In the case of a large viscosity parameter, alpha > 0.03, the accretion flow strongly deviates from thermodynamic equilibrium and overheats in the central region. With increasing accretion rate, the flow temperature steeply increases, reaches a maximum, and then falls off. The maximum is achieved in the advection dominated regime of accretion. The maximum temperature in the disc around a massive black hole, M=10^8 M_sun, with alpha=0.3 is of order 3 x 10^8 K. Discs with large accretion rates can emit X-rays in quasars as well as in galactic black hole candidates.
description: accepted for publication in MNRAS, 8 pages
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 0431
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: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0431, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0431, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Papilio panope Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Papilionidae
Papilio
Papilio panope

description: Papilio panope [spec. nov.]
P. N. alis dentatis fuscis concoloribus: limbo exteriore albo maculatis: posticis margine luteo maculatis.
Habitat in Asia.
Alae primores ad marginem exteriorem maculis obsoletioribus albis sagittatis. Posticae intra marginem posteriorem ordine triplici macularum sagittiformium, quarum postremae reniformes luteae.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on pages 479-480, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Supergravity and Space-Time Non-Commutative Open String Theory
Creators: name: Harmark, Troels
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the non-critical space-time non-commutative open string (NCOS) theory using a dual supergravity description in terms of a certain near-horizon limit of the F1-Dp bound state. We find the thermodynamics of NCOS theory from supergravity. The thermodynamics is equivalent to Yang-Mills theory on a commutative space-time. We argue that this fact does not have to be in contradiction with the expected Hagedorn behaviour of NCOS theory. To support this we consider string corrections to the thermodynamics. We also discuss the relation to Little String Theory in 6 dimensions.
description: 19 pages, latex, v2,v3: comments and details added, refs. added, minor corrections, page format changed, v4: refs. added
Sleep disordered breathing in chronic heart failure: causes, consequences and treatment
Creators: name: Atalla, Angela
Publisher: name: Imperial College London
Year: 2012

description: Chronic heart failure (HF) is a prevalent clinical syndrome in which both central and obstructive sleep disordered breathing (SDB) have been described. The aim of this research was to investigate the mechanisms causing central SDB, their consequences with reference to sleep and physical activity, and the way in which treatment modalities may modify these. The first study of this thesis is the SERVE-HF study, a randomised controlled trial of adaptive servoventilation (ASV) to treat central SDB in patients with CHF. This study is ongoing and aims to test the hypothesis that patients randomised to ASV will have a reduction in mortality compared to controls. Data regarding those randomised at the Royal Brompton Hospital are presented alongside data on ventilator compliance in the ASV group. The second study investigated ventilatory control, in HF patients both with and without SDB. It tested the hypothesis that those with central SDB had heightened chemosensitivity (assessed by the hypercapnic ventilatory response, HCVR) compared to those with no SDB and older healthy controls. The third study explored the effect of treatment on ventilatory control by testing the hypothesis that the implantation of a cardiac-resynchronisation therapy pacemaker would be associated with a reduction in the HCVR from baseline to 3 months post implantation. The fourth study investigated the consequences of SDB in CHF. Physical activity, subjective sleepiness and sleep were assessed in patients with CHF and older healthy controls to test the hypothesis that physical activity would be reduced in those with central SDB compared to those without SDB, and reduced in both patient groups compared to the controls. In summary, this thesis investigated the mechanisms underlying central SDB in patients with HF, to elucidate their consequences, both by day and night and to address the ways in which treatment modalities may modify these pathophysiological mechanisms. [For supplementary files please contact author].
MOESM1 of The Ankylosing Spondylitis-Associated HLA-B*2705 Presents a B*0702-Restricted EBV Epitope and Sustains the Clonal Amplification of Cytotoxic T Cells in Patients
Creators: name: Tedeschi, Valentina
name: Vitulano, Carolina
name: Cauli, Alberto
name: Paladini, Fabiana
name: Piga, Matteo
name: Mathieu, Alessandro
name: Sorrentino, Rosa
name: Fiorillo, Maria
Publisher: name: figshare
Year: 2016
Subjects: subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: The Ankylosing Spondylitis-Associated HLA-B*2705 Presents a B*0702-Restricted EBV Epitope and Sustains the Clonal Amplification of Cytotoxic T Cells in Patients
The 6.4 keV Fluorescent Iron Line from Cluster Cooling Flows
Creators: name: Churazov, E.
name: Sunyaev, R.
name: Gilfanov, M.
name: Forman, W.
name: Jones, C.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: For the inner region of the cooling flow (e.g. within the radius of $\sim$50--100 kpc) the Thomson optical depth of the hot gas in a massive cooling flow can be as large as $\sim 0.01$. Assuming that the cooling time in the inner region is few times shorter than the life time of the cluster, the Thomson depth of the accumulated cold gas can be higher accordingly (if most of the gas remains in the form of clouds). The illumination of the cold clouds by the X-ray emission of the hot gas should lead to the appearance of a 6.4 keV iron fluorescent line, with an equivalent width proportional to $τ_T$. The equivalent width only weakly depends on the detailed properties of the clouds, e.g. on the column density of individual clouds, as long as the column density is less than few $10^{23} cm^{-2}$. Another effect also associated exclusively with the cold gas is a flux in the Compton shoulder of bright X-ray emission lines. It also scales linearly with the Thomson optical depth of the cold gas. With the new generation of X-ray telescopes, combining large effective area and high spectral resolution, the mass of the cold gas in cooling flows (and it's distribution) can be measured.
description: 6 pages, 3 figures, submitted to MNRAS
Papilio similis Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Papilionidae
Papilio
Papilio similis

description: Papilio similis [spec. nov.]
P. N. alis subrepandis nigris concoloribus: punctis caerulescenti-albis basin versus lineatis.
Pet. gaz. t. 92. f. 13; an t. 3. f. 4?
Habitat in Asia.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 479, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Ageing@Work Human factors and metrics analysis
Creators: name: Mockałło Zofia
name: Żołnierczyk-Zreda Dorota
name: Sumińska Sylwia
name: Hildt-Ciupińska Katarzyna
name: Mazur-Różycka Joanna
name: Bugajska Joanna
name: Kacperska-Vukić Magdalena
name: Stamos Angelos
name: Paliokas Ioannis
name: Segkouli Sofia
Publisher: name: Zenodo
Year: 2019

description: The aim of this deliverable is to present the results of the analysis of the data collected on work ability, as well as occupational health and safety issues to be included in the Ageing@Work system. Ageing@Work has received funding from the EU Horizon 2020 Framework Programme for Research and Innovation under Grant Agreement No 826299
Quality of care in emergency general surgery
Creators: name: Symons, Nicholas
Publisher: name: Imperial College London
Year: 2013

description: There are more than 600,000 emergency general surgery admissions per year in England. These patients comprise about 50 percent of general surgical workload but make up 80-90 percent of all general surgical deaths. In recent years surgical colleges and societies in the UK have warned of significant variability in the quality of care between hospitals but, to date, little formal evaluation of the quality of care in emergency general surgery exists. This thesis uses the Structure/Process/Outcome quality assessment framework, devised by Avedis Donabedian, to examine quality of care in emergency general surgery across all three of these domains. A study of high risk emergency general surgical admissions using the administrative Hospital Episode Statistics dataset demonstrated significant variability in 30-day in-hospital mortality between NHS Trusts. Investigation of NHS Trust structure was performed using data from the Department of Health. There were significant differences in the provision of intensive care beds and in the utilization of computed tomography and ultrasound scanning between low mortality and high mortality NHS Trusts. The process of care was assessed using an explicit checklist for the admission phase of care and using ethnographic field notes for patients’ subsequent hospital stay. Across 5 London hospitals, process reliability during admissions to hospital was poor, with nearly 20% of recommended processes omitted. Failures in the process of care were also common in subsequent ward based care. Failures were considered to be highly preventable and frequently caused harm to patients or delayed their discharge. Overall, this thesis has identified significant variability in the quality of care for emergency general surgical patients in structure, process and outcomes. While the thesis does not evaluate every single aspect of patient care it demonstrates the degree of improvement required in emergency surgical care and provides some recommendations for future quality improvement.
title: ADCO, Grènetier de Cîteaux : comptes (1499-1503) (11 H 1173), f. 00056
Creators: name: de la Côte-d'Or, Archives départementales
name: CBMA/CG21/F.PETOT/2019
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: comptes
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173), f. 00056, 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
Additional file 1: of Survival of patients with chronic heart failure in the community: a systematic review and meta-analysis protocol
Creators: name: Jones, Nicholas
name: Roalfe, Andrea K.
name: Ibiye Adoki
name: F. Richard Hobbs
name: Taylor, Clare
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: PRISMA-P 2015 Checklist. (DOCX 32 kb)
Oral history interview with Marylin Bender, 2001
Publisher: name: Columbia University
Year: 2021

description: Early life in Brooklyn; love of flying, French culture, and newspapers; Smith College, B.A. 1944; encouraging atmosphere of Smith; Columbia Law School graduate 1947; discouragement over gender discrimination at Columbia; insulting and intimidating professors at Columbia; high attendance of veterans at Columbia after war; passing of courses and bar exam; pursuing journalism over law; experiences in writing for Parade, Journal-American, New York Times; investigative reporting at Journal-American; joining fashion section of the Times; marriage to Selig Altschul, guru of aviation finance; author, The Beautiful People, The Chosen Instrument; female editor of Sunday Business section of the Times; head of Business World Quarterly magazine for the Times; interviewing public figures, people in business; deposition against the Times for sex discrimination lawsuit; opinions on gender roles, fashion, and business
Leaving the BPS bound: Tunneling of classically saturated solitons
Creators: name: Binosi, D.
name: Shifman, M.
name: ter Veldhuis, T.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss quantum tunneling between classically BPS saturated solitons in two-dimensional theories with N=2 supersymmetry and a compact space dimension. Genuine BPS states form shortened multiplets of dimension two. In the models we consider there are two degenerate shortened multiplets at the classical level, but there is no obstruction to pairing up through quantum tunneling. The tunneling amplitude in the imaginary time is described by instantons. We find that the instanton is nothing but the 1/4 BPS saturated ``wall junction,'' considered previously in the literature in other contexts. Two central charges of the superalgebra allow us to calculate the instanton action without finding the explicit solution (it is checked, though, numerically, that the saturated solution does exist). We present a quantum-mechanical interpretation of the soliton tunneling.
description: LaTeX, 22 pages, 9 figures (eps)
Widely Linear State Space Filtering of Improper Complex Signals
Creators: name: Dini, Dahir Hersi
Publisher: name: Imperial College London
Year: 2013

description: Complex signals are the backbone of many modern applications, such as power systems, communication systems, biomedical sciences and military technologies. However, standard complex valued signal processing approaches are suited to only a subset of complex signals known as proper, and are inadequate of the generality of complex signals, as they do not fully exploit the available information. This is mainly due to the inherent blindness of the algorithms to the complete second order statistics of the signals, or due to under-modelling of the underlying system. The aim of this thesis is to provide enhanced complex valued, state space based, signal processing solutions for the generality of complex signals and systems. This is achieved based on the recent advances in the so called augmented complex statistics and widely linear modelling, which have brought to light the limitations of conventional statistical complex signal processing approaches. Exploiting these developments, we propose a class of widely linear adaptive state space estimation techniques, which provide a unified framework and enhanced performance for the generality of complex signals, compared with conventional approaches. These include the linear and nonlinear Kalman and particle filters, whereby it is shown that catering for the complete second order information and system models leads to significant performance gains. The proposed techniques are also extended to the case of cooperative distributed estimation, where nodes in a network collaborate locally to estimate signals, under a framework that caters for general complex signals, as well as the cross-correlations between observation noises, unlike earlier solutions. The analysis of the algorithms are supported by numerous case studies, including frequency estimation in three phase power systems, DIFAR sonobuoy underwater target tracking, and real-world wind modeling and prediction.
Papilio rumina Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Papilionidae
Papilio
Papilio rumina

description: Papilio rumina [spec. nov.]
P. N. alis dentatis variegatis: supra primoribus punctis sex, posticis quatuor rubris.
Catesb. car. 2. p. 95. t. 95.
Habitat in Europa australi.
Alae Postieae subtus maculis 8 albis.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 480, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Oral history interview with Mason Hoffenberg, 1981
Publisher: name: Columbia University
Year: 2020
Subjects: Authors
Drug addicts--United States
Drug traffic--History--20th century.--United States
Drug abuse--History--20th century.--United States
Heroin abuse--History--20th century.--United States
Recreational marijuana use
Drug addicts--Rehabilitation--United States
Methadone maintenance--History--20th century.--United States

description: In this interview, Mason Hoffenberg discusses his life experiences, both in New York City and abroad, with a focus on his drug use. He describes his time in the Air Force during World War II. He discusses in depth his navigation of the blossoming artistic and literary scene in Greenwich Village in the 1940s and 1950s, where he met Allen Ginsberg, James Baldwin, and Jack Kerouac, among others. He explains that this group was very insular and tight-knit partially because they were among the first in the United States to start recreationally smoking marijuana. He discusses the development of an insider language among people in this scene, and explains that much of the slang originated from black jazz musicians, carnival workers, and drug addicts. He describes his nearly lifelong oscillation between Paris and New York, working for Olympia Press, and Agence France-Presse (AFP) in Paris, and his marriage to a Frenchwoman in 1953. He discusses his novel "Candy" which he co-authored with his friend Terry Southern in the mid 1950s. He describes his cycles of heroin addiction and detoxification, both in hospitals and independently. He describes traveling to London to recieve apomorphine treatment, designed by Doctor John Yerbury Dent. He compares the price, availability, and public perception of narcotics between London, Paris, and New York, as well as the addict-doctor relationships in the three cities. He discusses his move to Woodstock in the 1960s, and describes the drug scene and his personal heroin connections there. He describes his experience on the methadone program, as well as his experience detoxing from methadone. He compares heroin as a street drug to methadone, a sanctioned drug. He describes drug "supermarkets" that started opening up on the Lower East Side in the 1970s. He describes his reacquaintance with Judaism in recent years, and his studies at Lincoln Center Synagogue
Lorentz Anomaly and 1+1-Dimensional Radiating Black Holes
Creators: name: Amelino-Camelia, G.
name: Griguolo, L.
name: Seminara, D.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The radiation from the black holes of a 1+1-dimensional chiral quantum gravity model is studied. Most notably, a non-trivial dependence on a renormalization parameter that characterizes the anomaly relations is uncovered in an improved semiclassical approximation scheme; this dependence is not present in the naive semiclassical approximation.
description: 7 pages, LaTex
Additional file 1: of Couple relationship education program “Living as Partners”: evaluation of effects on marital quality and conflict
Creators: name: Neumann, Angélica
name: Wagner, Adriana
name: Remor, Eduardo
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Table S1. Description of the workshops’ objectives and activities. (DOCX 18 kb)
Novel Propagation Mechanisms of Vapour Cloud Explosions
Creators: name: Hadjipanayis, Michalis
Publisher: name: Imperial College London
Year: 2013

description: This thesis considers the possibility of a novel propagation mechanism of vapour cloud explosions. The hypothesis is based on the potential of forward thermal radiation from hot combustion products to initiate combustion ahead of the main flame front by igniting particles suspended in the unburnt gas mixture. The formation of such local ignition events may cause an augmented explosion. An experimental investigation is described in which a laser source is used to heat various types of particles in flammable butane-air mixtures. It is found that fine powders can ignite an adjacent charge upon irradiation. Ignition times are established for a range of particles with widely different characteristics (size, type, morphology, etc.). In particular, ignition times scales ~100 ms could be obtained at an irradiance of 600 kW/m^2 using glass substrates coated with a carbon black. The relationship between absorption-emission properties of different powders is investigated further by determining particle temperatures under relevant radiation levels using time-resolved emission spectroscopy. Two different ignition regimes were observed, ignition temperatures appeared to be constant for non-reactive silicon carbide, while for reactive powders, temperature appeared to be not the sole ignition criterion. In response to the lack of radiation measurements for large scale premixed systems, a tool is developed for estimating the radiation flux emitted from such systems along with the corresponding level of irradiance posed on particles raised in the unburnt gas mixture. This information permits an assessment of the potential role of forward thermal radiation on the flame propagation. The comparison of such theoretical estimates with the experimentally measured ignition time data is vital for evaluation purposes. The analysis shows that the estimated and required fluxes are comparatively close and, hence, the proposed flame propagation mechanism is credible.
Team assembly mechanisms and the knowledge produced in the Mexico's National Institute of Geriatrics: a network analysis and agent-based modelling approach
Creators: name: García-Peña, Carmen
name: Gutiérrez-Robledo, Luis Miguel
name: Cabrera-Becerril, Augusto
name: Fajardo-Ortiz, David
Publisher: name: arXiv
Year: 2018
Subjects: subject: Digital Libraries (cs.DL)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Mexico's National Institute of Geriatrics (INGER) is the national research center of reference for matters related to human aging. INGER scientists perform basic, clinical and demographic research which may imply different scientific cultures working together in the same specialized institution. In this paper, by a combination of text mining, co-authorship network analysis and agent-based modeling we analyzed and modeled the team assembly practices and the structure of the knowledge produced by scientists from INGER. Our results showed a weak connection between basic and clinical research, and the emergence of a highly connected academic leadership. Importantly, basic and clinical-demographic researchers exhibited different team assembly strategies: Basic researchers tended to form larger teams mainly with external collaborators while clinical and demographic researchers formed smaller teams that very often incorporated internal (INGER) collaborators. We showed how these two different ways to form research teams impacted the organization of knowledge produced at INGER. Following these observations, we modeled, via agent-based modeling, the coexistence of different scientific cultures (basic and clinical research) exhibiting different team assembly strategies in the same institution. Our agent model successfully reproduced the current situation of INGER. Moreover, by modifying the values of homophily we obtain alternative scenarios in which multidisciplinary and interdisciplinary research could be done.
description: 8 pages, 5 figures
On Majorana algebras and representations
Creators: name: Castillo Ramirez, Alonso
Publisher: name: Imperial College London
Year: 2014

description: The basic concepts of Majorana theory were introduced by A. A. Ivanov (2009) as a tool to examine the subalgebras of the Griess algebra V_M from an elementary axiomatic perspective. A Majorana algebra is a commutative non-associative real algebra generated by a finite set of idempotents, called Majorana axes, that satisfy some properties of Conway’s 2A-axes of V_M. If G is a finite group generated by a G-stable set of involutions T, a Majorana representation of (G,T) is an algebra representation of G on a Majorana algebra V together with a compatible bijection between T and a set of Majorana axes of V . Ivanov’s definitions were inspired by Sakuma’s theorem, which establishes that any two-generated Majorana algebra is isomorphic to one of the Norton-Sakuma algebras. Since then, the construction of Majorana representations of various finite groups has given non-trivial information about the structure of V_M. This thesis concerns two main themes within Majorana theory. The first one is related with the study of some low-dimensional Majorana algebras: the Norton-Sakuma algebras and the Majorana representations of the symmetric group of degree 4 of shapes (2A,3C) and (2B,3C). For each one of these algebras, all the idempotents, automorphism groups, and maximal associative subalgebras are described. The second theme is related with a Majorana representation V of the alternating group of degree 12 generated by 11,880 Majorana axes. In particular, the possible linear relations between the 3A-, 4A-, and 5A-axes of V and the Majorana axes of V are explored. Using the known subalgebras and the inner product structure of V , it is proved that neither sets of 3A-axes nor 4A-axes is contained in the linear span of the Majorana axes. When V is a subalgebra of V_M, these results, enhanced with information about the characters of the Monster group, establish that the dimension of V lies between 3,960 and 4,689.
On the use of scaling relations for the Tolman test
Creators: name: Moles, Mariano
name: Campos, Ana
name: Kjaergaard, Per
name: Fasano, Giovanni
name: Bettoni, Daniela
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The use of relations between structural parameters of early type galaxies to perform the Tolman test is reconsidered. Scaling relations such as the FP or the Kormendy relation, require the transformation from angular to metric sizes, to compare the relation at different z values. This transformation depends on the assumed world model: galaxies of a given angular size, at a given z, are larger (in kpc) in a non-expanding universe than in an expanding one. Furthermore, the luminosities of galaxies are expected to evolve with z in an expanding model. These effects are shown to conspire to reduce the difference between the predicted SB change with redshift in the expanding and non expanding cases. We find that the predictions for the visible photometric bands of the expanding models with passive luminosity evolution are very similar to those of the static model till z about 1, and therefore, the test cannot distinguish between the two world models. Recent good quality data are consistent with the predictions from both models. In the K-band, where the expected (model) luminosity evolutionary corrections are smaller, the differences between the xpanding and static models amount to about 0.4 (0.8) magnitudes at z = 0.4 (1). It is shown that, due to that small difference between the predictions in the covered z-range, and to the paucity and uncertainties of the relevant SB photometry, the existing K-band data is not adequate to distinguish between the different world metrics, and cannot be yet used to discard the static case. It is pointed out that the scaling relations could still be used to rule out the non-evolving case if it could be shown that the coefficients change with the redshift.
description: Latex, 15 pages with 2 figures. To be published in ApJ Letters
Papilio dissimilis Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Papilionidae
Papilio
Papilio dissimilis

description: Papilio dissimilis [spec. nov.]
P. N. alis dentatis dilatato-venosis nigris concoloribus: maculis sagittatis albis postremis subtus luteis.
Ehret. pict. t. 17.
Habitat. in Asia.
Alae omnes nigrae, quasi ex venis nigris dilatatis striatae, interjectis maculis albis sagittatis: anterioribus longioribus, postremis brevioribus: in alis posticis ordo extimus macularum reniformis luteus; ex his ad angulum ani maculae luteae geminatae, etiam supra conspicuae.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 479, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Design of structural steel elements with the Continuous Strength Method
Creators: name: Liew, Andrew
Publisher: name: Imperial College London
Year: 2014

description: The current practice of ultimate limit state design for steel structures involves an elastic--perfectly plastic material model and the classification of cross-sections into discrete behavioural classes. This leads to a design philosophy which is simple, but generally over-conservative. The Continuous Strength Method is a strain based design approach which allows for the beneficial influence of strain hardening. At the core of the method is a base curve which relates the deformation capacity of a cross-section to its cross-section slenderness. Deformation capacity is defined through a strain ratio, which is the ratio of the maximum strain that a cross-section can endure to its yield strain. The formulation for the base curve was derived by means of stub column and bending tests collected from the literature. Knowing the limiting strain and assuming plane sections remain plane, the resistance of cross-sections to combinations of axial load and bending moments can be calculated by integrating the stresses arising from a suitable strain hardening material model over the area of the cross-section. Analytical and design expressions have been developed, and the resistance predictions for open and closed cross-section shapes have been compared with existing collated test data, and shown to give additional capacity over current design approaches, with a reduction in scatter and a more consistent method. Beyond the analysis of the cross-section, the method has been extended to the global instability of pin-ended columns by utilising moment--curvature--thrust curves. The curves were paired with an assumed buckled displacement shape to find applicable equilibrium configurations, and to extract the peak axial loads for producing buckling curves. The column buckling curves showed two distinct regions based on the global slenderness of the column. Firstly a region of global-dominated failure, where the columns failed by a loss of overall flexural rigidity, and secondly a local-dominated failure region, where the mid-height cross-sections failed by local buckling. The local cross-section failure mode allowed for axial loads greater than the cross-section yield loads. The column buckling curves were found to be dependent on the initial out-of-straightness, the cross-section geometry and the material yield stress. An experimental program provided insight into the cross-section resistance of hot-rolled rectangular hollow sections (RHS). The experiments included 32 material tensile coupon tests, eight stub column tests and four simply supported beam tests, and exhibited little strain hardening. Overall, a series of developments to a strain based approach for steel structures has been presented, and areas for future developments have also been highlighted.
Papilio comma Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Papilionidae
Papilio
Papilio comma

description: Papilio comma [spec. nov.]
P. P. alis integerrimis divaricatis fulvis: punctis albis lineolaque nigra. Fn. svec. 793.
Merian. eur. 15. t. 48.
Habitat in Europa.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 484, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Functional characterisation of A2A receptor thermostable mutants using a yeast signalling assay
Creators: name: Bertheleme, Nicolas
Publisher: name: Imperial College London
Year: 2014

description: G-protein-coupled receptors (GPCR) are transmembrane proteins that play a crucial role in the communication of cells with their external environment. In the last few years, several GPCR crystal structures have been solved using genetically engineered protein. The turkey β1-adrenergic receptor, the human neutrotensin 1 receptor and the adenosine A2A receptor (A2AR) structures involved the introduction of stabilizing mutations. The engineered mutant can be stabilized in an agonist or an antagonist bound conformation making the GPCR less flexible and therefore easier to crystallize. The aim of this study was to use functional characterization of the key thermostabilising mutants of the A2AR in order to understand the molecular basis of the thermostabilisation. The different mutants were characterized using a yeast-based growth assay, which measures down-stream signaling in response to agonist and radioligand binding analysis using both an agonist and an antagonist. Point mutations leading to a reduction/loss of constitutive receptor activity have been identified. In addition, a single point mutation abolishing the ability of receptor to bind the agonist NECA has also been identified. Conformational stabilization of the receptor is thus achieved by reducing basal activity along with modifying the ligand-binding pocket leading to inability to bind agonist. Such markers can be used to screen for stable mutants for structural characterization. Since thermostabilising mutations are not directly transferable across receptors, the yeast based growth assay could serve as a quick and inexpensive way to screen for mutations for a wide range of GPCRs.
Marginal Stability and the Metamorphosis of BPS States
Creators: name: Ritz, Adam
name: Shifman, Mikhail
name: Vainshtein, Arkady
name: Voloshin, Mikhail
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the restructuring of the BPS spectrum which occurs on certain submanifolds of the moduli/parameter space -- the curves of the marginal stability (CMS) -- using quasiclassical methods. We argue that in general a `composite' BPS soliton swells in coordinate space as one approaches the CMS and that, as a bound state of two `primary' solitons, its dynamics in this region is determined by non-relativistic supersymmetric quantum mechanics. Near the CMS the bound state has a wave function which is highly spread out. Precisely on the CMS the bound state level reaches the continuum, the composite state delocalizes in coordinate space, and restructuring of the spectrum can occur. We present a detailed analysis of this behavior in a two-dimensional N=2 Wess-Zumino model with two chiral fields, and then discuss how it arises in the context of `composite' dyons near weak coupling CMS curves in N=2 supersymmetric gauge theories. We also consider cases where some states become massless on the CMS.
description: 48 pages, 10 figures; significant revision of section 5 on dyons in 3+1D and related changes elsewhere
Rational homotopy theory in arithmetic geometry, applications to rational points
Creators: name: Lazda, Christopher David
Publisher: name: Imperial College London
Year: 2014

description: In this thesis I study various incarnations of rational homotopy theory in the world of arithmetic geometry. In particular, I study unipotent crystalline fundamental groups in the relative setting, proving that for a smooth and proper family of geometrically connected varieties f:X->S in positive characteristic, the rigid fundamental groups of the fibres X_s glue together to give an affine group scheme in the category of overconvergent F-isocrystals on S. I then use this to define a global period map similar to the one used by Minhyong Kim to study rational points on curves over number fields. I also study rigid rational homotopy types, and show how to construct these for arbitrary varieties over a perfect field of positive characteristic. I prove that these agree with previous constructions in the (log-)smooth and proper case, and show that one can recover the usual rigid fundamental groups from these rational homotopy types. When the base field is finite, I show that the natural Frobenius structure on the rigid rational homotopy type is mixed, building on previous results in the log-smooth and proper case using a descent argument. Finally I turn to l-adic étale rational homotopy types, and show how to lift the Galois action on the geometric l-adic rational homotopy type from the homotopy category Ho(Q_l-dga) to get a Galois action on the dga representing the rational homotopy type. Together with a suitable lifted p-adic Hodge theory comparison theorem, this allows me to define a crystalline obstruction for the existence of integral points. I also study the continuity of the Galois action via a suitably constructed category of cosimplicial Q_l-algebras on a scheme.
Essays on Dynamic Discrete Choice Economies
Creators: name: Michelini, Martin
Publisher: name: Carnegie Mellon University
Year: 2025
Subjects: classificationCode: 38
subject: Economics
classificationCode: 380199
subject: Applied economics not elsewhere classified
classificationCode: 380202
subject: Econometric and statistical methods
classificationCode: 380113
subject: Public economics - public choice
classificationCode: 380111
subject: Labour economics
classificationCode: 380112
subject: Macroeconomics (incl. monetary and fiscal theory)
classificationCode: 380119
subject: Welfare economics
classificationCode: 380203
subject: Economic models and forecasting

description: This thesis consists of two chapters: Tax Dynamics for the Long RunCosts of adjustment delay and complicate behavioral response to tax change. To accommodate such response, we integrate a dynamic discrete choice frame-work into optimal tax theory. We identify long run outcomes with stationary distributions of workers over income-generating states and formulate optimal tax equations in terms of the sensitivity of such distributions to consumption variation. We obtain formulas for these sensitivities that facilitate quantitative evaluation of long run substitution patterns. Novel “inverted” optimal tax equations are derived that establish marginal costs of inducing long run population movements to states as sufficient statistics for optimal taxes. The optimal tax implications of a dynamic quantitative model of occupational choice are analyzed.Identification and estimation of dynamic matching models with unobserved heterogeneityWe introduce a dynamic model of matching within a competitive market framework that explicitly incorporates time-invariant unobserved heterogeneity on both sides of the market along with endogenous separation and re-matching. In each period, agents make two sequential, forward-looking discrete choices. First, they decide whether to match with a partner or remain unmatched. In the second stage, they are committed to their matching status and face other choice margins. We establish the model’s identification under the assumpton of stationarity in panel datasets where the sampling unit is the household but the measurement unit is the individual, such as the German SOEP.We propose an Expectation-Maximization (EM) algorithm for estimation. Monte Carlo simulations support our theoretical identification results and demonstrate that our model offers a computationally viable framework for studying the economic incentives underlying matching, separation, and re-matching, particularly in settings where unobserved characteristics play a critical role
Oral history interview with Matthew Barbieri 1975
Publisher: name: Columbia University
Year: 2019
Subjects: Accountants
Executives
Accounting
Industrial management

description: Youth, training in cost accounting; career in accounting with Continental Can; introduction of industrial accounting by Heller Associates; standardization of new acquisitions' accounting methods; humane concerns of Continental Can for its employees; reorganizations of management structure.