cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Teacher perceptions of factors associated with diverse classroom compositions
Creators: name: Ferguson, Cailan E.
Publisher: name: Electronic version published by Vancouver Island University
Year: 2023
Subjects: subject: Classroom environment

description: Classroom compositions have been dramatically shifting to include a wider range of cultural, linguistic, and developmental diversity. Research surrounding the professional learning sought by teachers to work in diverse classrooms has been international in scope and primarily focused on initial teacher training programs, in-service and professional development, and teacher turnover. Studies from Australia, Eastern Asia, North America and Western Europe outline the comfort and preparedness level of teachers worldwide, consistently identifying a correlation between classroom compositions and challenges teachers experience. The purpose of this study was to explore the experiences of British Columbia public school teachers, specifically, as they relate to the contemporary dynamic classroom compositions. An explanatory sequential mixed methods approach was implemented here whereby quantitative data, collected using an online survey was used to identify themes for further exploration in a qualitative focus group discussion. Perceptions identified in this study were based on thematic identification through convergent and divergent analysis. This research revealed that teachers, though feeling mostly comfortable to meet the needs of their students, often feel ill-prepared and not supported with their work in diverse classrooms. To determine the preparedness of educators, teachers were asked specifically about their initial teacher training, in-service opportunities, and impactful professional learning. To gain more insight into supports necessary to assist teachers in meeting the needs of their students, participants were queried about their access to resources, consistency of specialists within the district and EA allocation. This paper elaborates on these findings and how they were determined. The significance and limitations of this paper are also established while providing recommendations for further research.
A high-level framework for efficient computation of performance - energy trade-offs in Markov population models
Creators: name: Stefanek, Anton
Publisher: name: Imperial College London
Year: 2013

description: Internet scale applications such as search engines and social networks run their services on large-scale data centres consisting of tens of thousands of servers. These systems have to cope with explosive and highly variable user demand and maintain a high level of performance. At the same time, the energy consumption of a data centre is one of the major contributors to its operational cost. This embodies the performance-energy trade-off problem. We need to find configurations which minimise the energy consumed in running important applications in complex environments, but which also allow those applications to run reliably and fast. In this thesis, we develop a general performance--energy analysis framework that can be used to express complex behaviour in communicating systems and provide a rapid analysis of performance and energy goals. It is intended that this framework can be used both at design time to predict long-run performance and energy consumption of an application in a large execution environment; and at run time to make short-term predictions given current conditions of the environment. In both cases the rapid model analysis permits detailed what-if scenarios to be tested without the need for expensive experiments or time-consuming simulations. The major contributions of this thesis are: (i) development of the Population Continuous-Time Markov Chain (PCTMC) representation as a low-level abstraction for very large performance models, (ii) development of rapid ODE analysis techniques to compute performance-based Service Level Agreements (SLA) and reward-based energy metrics in PCTMCs, (iii) hybrid extension of PCTMCs that allows models to incorporate continuous variables such as temperature and that permits the specification of systems with time-varying workloads, (iv) an extension of the GPEPA process algebra that can support session-based synchronisation between agents and that can be mapped to PCTMCs, thus giving access to the rapid ODE analysis. We support the framework with a software tool GPA, which implements all the described formalisms and analysis techniques.
Single-electron $G^{(2)}$ function at nonzero temperatures
Creators: name: Moskalets, Michael
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The single-particle state is not expected to demonstrate second-order coherence. This proposition, correct in the case of a pure quantum state, is not verified in the case of a mixed state. Here I analyze the consequences of this fact for the second-order correlation function, $G ^{(2)}$, of electrons injected on top of the Fermi sea with nonzero temperature. At zero temperature, the function $G ^{(2)}$ unambiguously demonstrates whether the injected state is a single- or a multi-particle state: $G^{(2)}_{}$ vanishes in the former case, while it does not vanish in the latter case. However, at nonzero temperatures, when the quantum state of injected electrons is a mixed state, the purely single-particle contribution makes the function $G ^{(2)}_{}$ to be non vanishing even in the case of a single-electron injection. The single-particle contribution puts the lower limit to the second-order correlation function of electrons injected into conductors at nonzero temperatures. The existence of a single-particle contribution to $G ^{(2)}_{}$ can be verified experimentally by measuring the cross-correlation electrical noise.
description: main text - 6 pages; appendices - 7 pages; 3 figures
The regulated four parameter one dimensional point interaction
Creators: name: Roman, J. M.
name: Tarrach, R.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The general four parameter point interaction in one dimensional quantum mechanics is regulated. It allows the exact solution, but not the perturbative one. We conjecture that this is due to the interaction not being asymptotically free. We then propose a different breakup of unperturbed theory and interaction, which now is asymptotically free but leads to the same physics. The corresponding regulated potential can be solved both exactly and perturbatively, in agreement with the conjecture.
description: 17 pages, no figures, Tex file
Event modelling and recognition in video
Creators: name: Gkalelis, Nikolaos
Publisher: name: Imperial College London
Year: 2013

description: The management of digital video has become a very challenging problem as the amount of video content continues to witness phenomenal growth. This trend necessitates the development of advanced techniques for the efficient and effective manipulation of video information. However, the performance of current video processing tools has not yet reached the required satisfaction levels mainly due to the gap between the computer generated semantic descriptions of video content and the interpretations of the same content by humans, a discrepancy commonly referred to as the semantic gap. Inspired from recent studies in neuroscience suggesting that humans remember real life using past experience structured in events, in this thesis we investigate the use of appropriate models and machine learning approaches for representing and recognizing events in video. Specifically, a joint content-event model is proposed for describing video content (e.g., shots, scenes, etc.), as well as real-life events (e.g., demonstration, birthday party, etc.) and their key semantic entities (participants, location, etc.). In the core of this model stands a referencing mechanism which utilizes a set of video analysis algorithms for the automatic generation of event model instances and their enrichment with semantic information extracted from the video content. In particular, a set of subclass discriminant analysis and support vector machine methods for handling data nonlinearities and addressing several limitations of the current state-of-the-art approaches are proposed. These approaches are evaluated using several publicly available benchmarks particularly suited for testing the robustness and reliability of nonlinear classification methods, such as the facial image collection of the Four Face database, datasets from the UCI repository, and other. Moreover, the most efficient of the proposed methods are additionally evaluated using a large-scale video collection, consisting of the datasets provided in TRECVID multimedia event detection (MED) track of 2010 and 2011, which are among the most challenging in this field, for the tasks of event detection and event recounting. This experiment is designed in such a manner so that it can be conceived as a fundamental evaluation of the proposed joint content-event model.
Self association and transcription activation determinants in a bacterial enhancer binding protein
Creators: name: Lawton, Edward
Publisher: name: Imperial College London
Year: 2013

description: Bacterial transcription initiation relies on the binding of a dissociable sigma factor to the catalytic RNA polymerase (RNAP) ‘core’ enzyme to enable promoter specific DNA recognition. While the initial σ70 RNAP-promoter DNA bound complex (termed the closed complex) can spontaneously isomerise to form open promoter complexes, RNAP containing the major variant, the σ54 factor requires activation by bacterial enhancer binding proteins (bEBPs) which reorganize the initial closed promoter complex to an open complex in an ATP consuming reaction. These bEBPs belong to the AAA+ (ATPases associated with various cellular activities) superfamily of proteins that form oligomeric rings (often hexamers) on upstream activation sequences (UAS) ~150bp upstream of the promoter. A DNA looping event, often mediated by integration host factor (IHF), brings the bEBP in close proximity to the σ54-RNAP closed complex (RPc). The interaction between σ54 (within the context of the RPc) and the bEBP is strictly dependent on a sequence insertion (that is common to all bEBPs) termed the L1 loop, which is thought to be the major structural determinant in energy transfer between the bEBP and σ54. The σ54 subunit is split up into three distinct regions (termed Regions I, II and III), where the L1 loop interacts with the mobile Region I and Region III forms the DNA contacts necessary for engaging with -12 and -24 consensus sequences on promoter DNA. A basic understanding of the global interactions that mediate σ54-dependent transcription has already been obtained, yet many specific mechanistic details remain unknown. In this study we elucidate three features of σ54 transcription activation: i) The interactions required within the bEBP complex for functional oligomerisation, ii) the mechanism that transcription activation determinants act and iii) the role of Region III in binding to the -12 element.
Additional file 1: of Evaluating the social fitness Programme for older people with cognitive problems and their caregivers: lessons learned from a failed trial
Creators: name: H Donkers
name: D Van Der Veen
name: S Teerenstra
name: M Vernooij-Dassen
name: M Nijhuis-Vander Sanden
name: M Graff
Publisher: name: figshare
Year: 2018
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Original study design and outcomes of the Social Fitness Programme RCT. We designed an effectiveness study (RCT) to evaluate the Social Fitness Programme. As a result of the high amount of study decline in relation to the participants who gave informed consent, study inclusion was terminated. As a result of limited inclusion it was not feasible to perform the linear mixed models for the primary outcomes as planned. We therefore performed explorative descriptive analyses on our data. Additional file 1 contains the study design of the RCT and the descriptive results of our primary and secondary outcomes. (DOCX 74 kb)
Nonmonotonic Inductive Logic Programming as Abductive Search
Creators: name: Corapi, Domenico
Publisher: name: Imperial College London
Year: 2011

description: Inductive Logic Programming (ILP) is a machine learning technique that relies on logic programs as a representation language. Most of the effort in the field of ILP has concentrated on a restricted class of problems, providing solutions that do not fully support negation. On the other hand, integration of negation and nonmonotonic reasoning in logic programming is common and important for a number of problems. This thesis presents an approach to nonmonotonic ILP that is based on a transformation of the original problem to a problem that can be solved by employing abductive reasoning. In particular we present a general framework for the transformation that can be used as reference for concrete implementations. We instantiate the transformation to derive two alternative implementations that are rooted in the two dominant computational logic paradigms: Prolog and Answer Set Programming (ASP). In the first case, we derive an implementation, called TAL, that is based on the abductive proof procedure SLDNFA and uses a customisable best-first search on the space of abductive solutions. In the second case the transformation is further refined in order to exploit the computational properties of available ASP solvers. In the proposed system called ASPAL, a theory is constructed from a set of mode declarations and used to extend the search of the underlying solver, so enabling the derivation of inductive hypotheses. We provide completeness and soundness results for the framework and the ILP systems presented and show how, as a consequence of this, it is possible to induce complex multi-predicate hypotheses involving negation, recursion and the definition of elements of the domain that are not directly observed. We validate the framework on established ILP benchmark problems, on some nonmonotonic ILP problems proposed in the literature. Furthermore we demonstrate the approach on a novel application of nonmonotonic ILP to the revision of normative frameworks.
Activity budget and movement patterns of Brown Swiss and Alpine Grey lactating cows during summer grazing in alpine pastures
Creators: name: Raniolo, S.
name: Sturaro, E.
name: Bovolenta, S.
name: Gianelle, D.
name: Ramanzin, M.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: We used GPS tracking to monitor the grazing patterns of Brown Swiss and Alpine grey lactating cows on an alpine summer pasture (2038 m a.s.l.; SD = 146) in the Dolomites. The pasture (171 ha) was managed with a continuous grazing system (0.52 LU/ha) with morning and evening milking in the barn, guided grazing during the ‘day’, and free grazing at ‘night’. GPS positions were collected from 8 Brown Swiss multiparous and 9 Alpine Grey (4 primiparous and 5 multiparous) cows every two minutes. We inferred behaviours (grazing, resting, walking) from movement metrics, activity sensors and direct behavioural observations. After excluding milking periods, the cows grazed for 8 h/d, rested 10–11 h/d, and walked for 1.5/d. Grazing extended into late evening after milking, and resting prevailed throughout the ‘night’ until the morning milking. When grazing and resting, cows mainly used grasslands as the preferred habitat, but forest and sparse shrub were also used remarkably without consistent negative or positive selection. The pasture use was highly heterogeneous, with higher animal loads close to the barn, especially at night, and in areas with gentler slopes. Alpine Grey primiparous cows were less limited by slope and distance from the barn in their movement but were more selective in habitat use than multiparous cows. Differences between multiparous cows of the two breeds were less marked. Further studies should help understand the internal and external drivers of cattle grazing patterns to devise management practices combining animals’ productivity and welfare with the conservation of the grassland ecosystem services. Lactating cows in Alpine summer pastures spent daily 8 hours grazing, 10–11 hours resting, and 1.5 hours walking. The pasture was used unevenly. Grassland was the habitat most used and preferred by the cows, but forest and sparse forest were also used remarkably. Activity budget and pasture use differed more between primiparous and multiparous cows within breed than between multiparous cows of different breeds.
The Marxisms of West Germany's "1968" : remaking a public critique through literary magazines
Creators: name: Lampe, Josch
name: 0000-0002-0903-3138
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Marxism
1968
Enzensberger
Kursbuch
Literaturmagazin

description: My dissertation focuses on two of West Germany's preeminent literary magazines—Kursbuch (founded in 1965) and Literaturmagazin (founded in 1973)—and the ways in which they sought to shape and redefine a literary public sphere as a site of intellectual, cultural, and political critique during the long '68, as well as their role in the reevaluation and dissemination of different, global Marxisms. It combines archival research on the editorial correspondence and conceptualization of these respective magazines with a detailed analysis of their content in order to better understand the intellectual event "1968" and its immediate aftermath as part of a larger contested history of publishing practices in West Germany after 1945. My work outlines how these two publications not only trafficked in different Marxisms at different times and to different ends, but also took part in the (re)constitution of an engaged literary public sphere through the creation, design, and circulation of competing conceptions of literary magazines. More critically, I argue that Kursbuch and Literaturmagazin suggest clear evidence of a continuation of Marxist debates from earlier eras about the links of aesthetic judgment and political action (such as the so-called Realism-Modernism Debate), indicating that "1968" is a mere interim stage in an unfinished debate on Marxist aesthetics. My project therefore recoups a set of West German and international voices that have been too often overlooked as viable experiments in Western Marxisms within an international framework, not just as part of West Germany's nation-(re)building and World War II recovery. In other words, these magazines brought to public discussion a broader spectrum of leftist thought. I illustrate how the journals' editorial staffs were assessing West Germany by addressing its weaknesses through the lenses of an inherently international, multilayered, and often incoherent set of Marxist agendas in the making.
MOESM3 of Tri-methylation of ATF7IP by G9a/GLP recruits the chromodomain protein MPP8
Creators: name: Tsusaka, Takeshi
name: Kikuchi, Masaki
name: Shimazu, Tadahiro
name: Suzuki, Takehiro
name: Sohtome, Yoshihiro
name: Akakabe, Mai
name: Sodeoka, Mikiko
name: Naoshi Dohmae
name: Umehara, Takashi
name: Shinkai, Yoichi
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 3: Fig. S2. G9a/GLP methylate ATF7IP and ATF7IP2. Aâ B An in vitro methylation assays were performed as in Fig.Â 1e (related to Fig.Â 1).
An Investigation into Factors affecting Ultrasound and Microbubble mediated Gene Transfection
Creators: name: Browning, Richard Johannes
Publisher: name: Imperial College London
Year: 2011

description: Gene therapy is a promising tool in the treatment of genetic disorders. Viral vectors have a natural ability to genetically alter cells, however, concern over their immunogenic and mutagenic effects has led to the development of safer non-viral alternatives, such as ultrasound and microbubble mediated gene transfection (UMGT). UMGT causes cellular bioeffects leading to uptake of genetic material; however transfection efficiencies in vivo are poor. It was the aim of this project to investigate key factors that affect UMGT in vivo. A Model Protocol was created with techniques capable of characterising the acoustic response and stability of microbubbles, as well as their population statistics and ability to transfect the heart of six to eight week old, CD1, female mice with a luciferase plasmid. This was used to investigate the effect of needle gauge and microbubble formulation on transfection. It was found that the needle gauge used to systemically deliver SonoVue microbubbles affected microbubble number and transfection. 29G needles caused a decrease in microbubble concentration and transfection, whilst 25G needles caused no microbubble destruction and resulted in significantly greater transfection. Albumin microbubbles are more effective than lipid microbubbles at transfection, but are not optimised. It was found that altering the dextrose and albumin content of an albumin microbubble affected their acoustic and transfection properties. A link between the attenuation behaviour of a microbubble and its transfection efficiency was found, suggesting that optimising acoustic behaviour could improve transfection. DNA-loaded, cationic lipid microbubbles have shown greater transfection ability than neutral microbubbles due to co-localisation of DNA at the site of microbubble activation. Albumin microbubbles have not been fully investigated for this effect. A novel, potentially safe, microbubble formulation was created and fluorescence techniques used to demonstrate its loading capability. This project has identified needle gauge and microbubble acoustic behaviour as key factors affecting the effectiveness of UMGT.
Semi-empirical modelling of SiGe hetero-structures
Creators: name: Elder, Warren James
Publisher: name: Imperial College London
Year: 2012

description: The k . p perturbation method, initially developed for bulk systems has subsequently been generalised to model heterostructures using the envelope function approximation. This semi-empirical modelling technique provides vital information on the electronic and optical properties of complicated material systems that form heterostructures. It is known that k . p theory can be formulated in two ways; either through use of single or double group basis functions, with the implication that spin orbit interaction is either treated as a perturbation in parallel with the k . p term, or as part of the unperturbed Hamiltonian. The critical difference between the two approaches is that under the former, single group selection rules are considered in the evaluation of the k-dependent Hamiltonian, and the subsequent treatment of spin orbit interaction as a perturbation places restrictions on the adapted double group bases. Under the latter approach, double group selection rules are considered, resulting in an explicit change in the k-dependent Hamiltonian for multiband models of 14-band models or higher, and implicit changes to material parameters describing lower band models. A key result, is the ability of the double group formulated k . π theory to properly account for the experimentally measured spin orbit band and conduction band effective masses. This in particular leads to a change in the bulk valence band dispersion relation. In heterostructures, double group-effective mass equations result in changes to the operator ordered Hamiltonian, and the use of double group material parameters impacts the confinement energies and in-plane dispersion of subbands in a quantum well. An investigation is made into the impact of these changes on the electronic properties of Ge/SiGe heterostructures, which have applications as optical modulator devices.
CPT anomaly in two-dimensional chiral U(1) gauge theories
Creators: name: Klinkhamer, F. R.
name: Nishimura, J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The CPT anomaly, which was first seen in perturbation theory for certain four-dimensional chiral gauge theories, is also present in the exact result for a class of two-dimensional chiral U(1) gauge theories on the torus. Specifically, the chiral determinant for periodic fermion fields changes sign under a CPT transformation of the background gauge field. There is, in fact, an anomaly of Lorentz invariance, which allows for the CPT theorem to be circumvented.
description: 4 pages, REVTeX, v3: published version
title: 01_2570
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Price experimentation in confidential negotiations
Creators: name: Lee, Jangwoo
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Sequential bargaining
Confidentiality
Competition
Mergers & acquisition

description: I develop a model in which a long-lived seller concurrently negotiates with multiple long-lived buyers over two periods. Within this framework, I consider two protocols: a public negotiation process and a confidential negotiation process. In the confidential negotiation process, buyers competitively engage in “price experimentation”: they sacrifice part of initial profits so that they can enjoy informational advantages over competitors later. Due to this channel, the seller benefits from (1) maintaining confidentiality over past offers and (2) reducing the number of buyers in the confidential negotiation process, even without any entry cost.
On the total number of principal series of a finite abelian group
Creators: name: Bentea, Lucian
name: Tărnăuceanu, Marius
Publisher: name: arXiv
Year: 2018
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: In this note we give a bijective proof for the explicit formula giving the total number of principal series of the direct product $\mathbb{Z}_{p^{α_1}} \times \mathbb{Z}_{p^{α_2}}$, where $p$ is a prime number. This new proof is easier to generalize to arbitrary finite abelian groups than the original direct calculation method.
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Cart. 190 (11 H 75), 316 folios, f. 0181v
Creators: name: de la Côte d'Or, Archives départementales
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: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0181v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VI, Archives départementales de la Côte-d'Or, Cart. 190 (11 H 75), 316 folios, f. 0181v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: abbaye de Cîteaux
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Oral history interview with Léonard Bernstein Rist, 1961
Publisher: name: Columbia University
Year: 2020
Subjects: Economists
Bankers
Banks and banking, International
Loans, Foreign

description: Early organization of Bank and International Monetary Fund; economic department; evolution of credit standards; studies of internal fiscal policies of borrowing countries; commodity studies; Meyer, McCloy, and Black presidencies; reconstruction loans and development loans; loans for imports, education, and public health programs
Oral history interview with László Pâthy, 1976
Publisher: name: Columbia University
Year: 2020
Subjects: Diplomats--Hungary
Diplomatic negotiations in international disputes
Shipping--Hungary

description: Egyptian-Hungarian cotton agreement, 1932; establishment of Hungarian-Egyptian Trading Company, expansion of commercial and cultural ties; shipping activities; 1938 Hungarian disavowal of German activities; effects of World War II on shipping business
Silicon-Containing Organic Conjugated Materials for Light Emitting Diodes
Creators: name: Keyworth, Colin William
Publisher: name: Imperial College London
Year: 2010

description: This thesis contains a study of polymer light emitting diodes (PLEDs) for commercial use within blue organic light-emitting diode (OLED) display technologies. The introduction chapter outlines the aims and synthetic strategies / targets employed during the research and gives background information as to the historical development of OLEDs and PLEDs. The first chapter of research involves the synthesis of several alternating co-polymers of dibenzosilole (a previously reported monomer used in light emitting devices), along with the prerequisite monomers. These co-polymers have been fully characterised and their optoelectronic properties evaluated. The energy levels of the co-polymers (HOMO / LUMO) were measured, then compared with each other and used to establish correlations between these values and the use of co-monomers and the polymer backbone linearity. By tuning the energy levels of conjugated polymers, it is possible to alter both the energy of the light emitted (and therefore the colour) and also improve the charge-injection balance within the OLED device, thereby improving lifetimes and performance. This research was primarily concerned with blue light-emission, therefore these energy level studies were conducted with a view to achieving blue light emission with the desired CIE coordinates and luminance. The novel co-polymers were used to fabricate several prototype OLED devices and the performance of these has been evaluated. The second chapter of research contains a study of several novel silicon-containing monomer structures, for incorporation into conjugated PLEDs. The first structure is a disilaanthracene derivative and the attempted synthesis of this monomer is reported. The other two monomers are based on spirosilabifluorene and the syntheses and full characterisations are reported. Attempts at the coupling of these monomers were made, using several different known coupling reactions including Suzuki, Stille and Kumada. The attempted coupling products were simple trimers, using 9,9-dioctylfluorene as a co-monomer. These were to be used in small molecule organic light-emitting diodes (SMOLEDs). The outcomes of these coupling reactions are described.
Finite groups determined by an inequality of the orders of their normal subgroups
Creators: name: Tărnăuceanu, Marius
Publisher: name: arXiv
Year: 2018
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: In this article we introduce and study a class of finite groups for which the orders of normal subgroups satisfy a certain inequality. It is closely connected to some well-known arithmetic classes of natural numbers.
7 mm lambda VLBA Observations of Sagittarius A*
Creators: name: Bower, Geoffrey C.
name: Backer, Donald C.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present 7 mm lambda VLBA observations of the compact nonthermal radio source in the Galactic Center, Sgr A*. These observations confirm the hypothesis that the image of Sgr A* is a resolved elliptical Gaussian caused by the scattering of an intervening thermal plasma. The measured major axis of Sgr A* is 0.76 \pm 0.04 mas, consistent with the predicted scattering size of 0.67 \pm 0.03. We find an axial ratio of 0.73 \pm 0.10 and a position angle of 77.0 \pm 7.4 deg. These results are fully consistent with VLBI observations at longer wavelengths and at 3 mm lambda. We find no evidence for any additional compact structure to a limit of 35 mJy. The underlying radio source must be smaller than 4.1 AU for a galactocentric distance of 8.5 kpc. This result is consistent with the conclusion that the radio emission from Sgr A* results from synchrotron or cyclo-synchrotron radiation of gas in the vicinity of a black hole with a mass near 10^6 M_sun.
description: 12 pages, aastex
Combining Tools and Techniques for Embedding an Ecosystem Approach in Spatial Planning
Creators: name: Ojike, Uzoma
Publisher: name: Imperial College London
Year: 2013

description: Despite the attention garnered by sustainability in the last three decades and the advances in its tools and techniques, we are no closer to attaining sustainability now than we were at the start. This elusiveness has been attributed to the lack of a clearly defined global method for evaluating sustainability and poor integration into sector, national and international policies and decision-making, amongst others. A clear limitation observed in most concepts/methods is their inability to integrate effectively ecological, economic and social sustainability during assessment. Rather, there is a tendency to assess them separately and integrate them after the assessment. This process often leaves loopholes in sustainability assessment as there are trade-offs created that often favour economic sustainability but more rarely favour environmental, or even social, sustainability. In order to address this limitation, the Millennium Ecosystem Assessment (MEA) in 2005 recognized that the complex interactions between these ecological, economic and social processes have to be understood and established a universal valuation concept known as ecosystem services which can be used in sustainability assessment and Spatial Planning. Ecosystem services are the benefits or services created by the ecosystem which are essential for the daily functioning of humans and economies. This research explores how best to achieve integration of the Ecosystem Approach within environmental/sustainability assessment. It adopts a mixed method approach that combines the use of existing qualitative techniques, Network Analysis and stakeholder engagement, and quantitative techniques, Geographical Information Systems, within a regeneration case study at local level (Dartford in North Kent, United Kingdom). The thesis makes recommendations for better integration of an Ecosystem Approach in Spatial Planning and decision making and the ways in which assessment tools and techniques can be best combined.
Multiferroicity and magnetoelastic coupling in alpha-Mn2O3: A binary perovskite
Creators: name: Chandra, Mohit
name: Yadav, Satish
name: Choudhary, R. J.
name: Rawat, R.
name: Sinha, A. K.
name: Lepetit, Marie-Bernadette
name: Singh, Kiran
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Multiferroics where at least two primary ferroic orders are present and coupled in a single system constitute an important class of materials. They attracted special consideration as they present both intriguing fundamental physics problems and technological importance for potential multifunctional devices. Here, we present the evidence of multiferroicity and magnetoelectric (ME) coupling in alpha-Mn2O3; a unique binary perovskite. Corresponding to the antiferromagnetic (AFM) ordering around 80K, a clear frequency independent transition is observed in the dielectric permittivity. We showed that electric polarization emerges near AFM regime that can be modulated with magnetic field. The detailed structural analysis using synchrotron radiation X-ray diffraction demonstrates the increase in structural distortion with decreasing temperature, as well as changes in the unit cell parameters and bond lengths across the ferroelectric and magnetic ordering temperatures. This observation of multiferroicity and magnetoelastic coupling in alpha-Mn2O3 provides insights for the exploration of ME coupling in related materials.
description: Page 20 and 6 figures
Oral history interview with M. Alister McIntyre, 2001
Publisher: name: Columbia University
Year: 2020
Subjects: Economists
Economic development--Caribbean Area
States, Small--Economic conditions
International economic relations
Decolonization--Caribbean Area
Education--Economic aspects--Caribbean Area

description: Born 1930 in Grenada. Education: British-style secondary school, London School of Economics, Oxford University, Fulbright Scholarship to Columbia University, Princeton University. Career: lecturer, vice chancellor at University of the West Indies (UWI); chairman of Commonwealth Group of Experts on the New International Economic Order; United Nations Conference on Trade and Development (UNCTAD): Director of Commodities, Deputy Secretary-General, Officer in Charge; Secretary-General of Caribbean Community Common Market (CARICOM), Themes: economics of development in the Caribbean, economics of small states, establishment of Caribbean Free Trade Association (CARIFTA) and CARICOM, impact of Depression and World War II in the Caribbean, impact of the UN in the Caribbean, decolonization, Caribbean education, gender and development issues, development of Integrated Programme of Commodities, disappointment with the limitations of international organizations, geographical representation in the UN, capable leaders in UN, effects of political ideology on development policy, smothering effects of bureaucracy and rivalry on ideas and programs, impact of reports and writing on policy, importance of planned and focused international conferences, application of international models in the Caribbean, relations between small and large states, differences between Caribbean and Latin America, regional integration in the Caribbean, problem of the "knowledge divide," international migration, goal to improve efficiency
A note on subgroup coverings of finite groups
Creators: name: Tărnăuceanu, Marius
Publisher: name: arXiv
Year: 2018
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: In this note we determine the finite groups that can be written as the union of any three irredundant/distinct proper subgroups. The finite groups that can uniquely be written as the union of three proper subgroups are also characterized.
A Spherical Non-LTE Line-Blanketed Stellar Atmosphere Model of the Early B Giant epsilon CMa
Creators: name: Aufdenberg, J. P.
name: Hauschildt, P. H.
name: Shore, S. N.
name: Baron, E.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use a spherical non-LTE fully line blanketed model atmosphere to fit the full multi-wavelength spectrum, including the extreme ultraviolet (EUV) continuum observed by the {\it Extreme Ultraviolet Explorer}, of the B2 II star \epscma. The available spectrophotometry of \epscma\ from 350 Å to 25 \micron\ is best fit with model parameters \Teff = 21750\,K, \Logg = 3.5, and an angular diameter of 0.77 mas. The close agreement between the model and the measured EUV flux from \epscma\ is a result of the higher temperatures at the formation depths of the \ion{H}{1} and \ion{He}{1} Lyman continua compared to other models. The realistic model treatment of early B giants with spherical geometry and NLTE metal line blanketing results in the prediction of significantly larger EUV fluxes compared with plane-parallel models. We find that our metal line blanketed spherical models show significantly warmer temperature structures, 1-3 kK at the formation depth of the Lyman continua, and predict stronger EUV fluxes, up to a factor of 5 in the \ion{H}{1} Lyman continuum, compared with plane-parallel atmospheres that have identical model parameters. In contrast, we find spherical and plane-parallel models that do not include metal line blanketing are nearly identical. Our \Teff = 21000 K, \Logg = 3.2, spherical NLTE model predicts more than twice as many hydrogen ionizing photons and over 200 times more neutral helium ionizing photons than a standard hydrostatic plane-parallel LTE model with the same stellar parameters.
description: ApJ, in press (May 10th issue), 24 pages, also available at ftp://calvin.physast.uga.edu/pub/preprints/epsCMa.ps.gz
Generalization of the Calogero-Cohn Bound on the Number of Bound States
Creators: name: Chadan, K.
name: Kobayashi, R.
name: Martin, A.
name: Stubbe, J.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that for the Calogero-Cohn type upper bounds on the number of bound states of a negative spherically symmetric potential $V(r)$, in each angular momentum state, that is, bounds containing only the integral $\int^\infty_0 |V(r)|^{1/2}dr$, the condition $V'(r) \geq 0$ is not necessary, and can be replaced by the less stringent condition $(d/dr)[r^{1-2p}(-V)^{1-p}] \leq 0, 1/2 \leq p < 1$, which allows oscillations in the potential. The constants in the bounds are accordingly modified, depend on $p$ and $\ell$, and tend to the standard value for $p = 1/2$.
description: 1 page. Correctly formatted version (replaces previous version)
Effect of dietary Flammulina velutipes (Curt.: Fr.) stem waste on ovarian follicles development in laying hens
Creators: name: Sun, Chang
name: Wu, Haoyuan
name: Xiao, Huanwei
name: Tsopmejio, Ivan Stève Nguepi
name: Jin, Zhouyu
name: Song, Hui
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Statistics
subject: FOS: Mathematics
subject: Science Policy

description: Flammulina velutipes is one of the most consumed mushrooms mainly produced in China but their stem base, which is a waste resource in production usually not used, but has revealed reducing cholesterol effects and preventing fatty liver. Considering the important role of ovarian development in poultry production and the unclear mechanism of dietary nutrition in ovarian development, the effect of F. velutipes stem waste (FVS) on ovarian follicle development in laying hens and its potential mechanism were investigated by adding 2%, 4% and 6% FVS to the diet of laying hens and the production performance, biochemical parameters, hypothalamic-pituitary-ovarian axis hormone level, mRNA and protein changes on laying hens at sexual maturity and peak laying period were evaluated. FVS significantly improved the egg white weight and eggshell strength of laying hens, and markedly reduced the levels of lipid and abdominal fat. In addition to regulate lipid metabolism, FVS also inhibited the ovarian apoptosis pathway, reduced follicular atresia, increased the genes and proteins expression related to follicle stimulating hormone receptor (FSHR), luteinizing hormone receptor (LHR) and steroid hormone synthesis signal pathway, and increased the level of serum hormone. FVS could thus promote ovarian development by reducing cholesterol and other lipid levels, stimulating steroid hormone signalling pathway as well as improve the production performance of laying hens, suggesting that FVS could be added to poultry feed as a nutritional supplement.HIGHLIGHTSFlammulina velutipes stem waste can improve egg white weight and eggshell strength;Flammulina velutipes stem waste reduces ovarian apoptosis and inhibits follicular atresia;Flammulina velutipes stem waste can be used as a feed supplement to improve ovarian health in poultry; Flammulina velutipes stem waste can improve egg white weight and eggshell strength; Flammulina velutipes stem waste reduces ovarian apoptosis and inhibits follicular atresia; Flammulina velutipes stem waste can be used as a feed supplement to improve ovarian health in poultry;