cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Numerical study of the tidal interaction of a star and a massive black hole
Creators: name: Marck, J. A.
name: Lioure, A.
name: Bonazzola, S.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a formalism well adapted to the numerical study of the encounter of an ordinary main sequence star with a massive black hole. Symmetry considerations, the use of a well adapted moving grid and a well adapted moving frame along with integration of the partial differential equations by means of pseudo-spectral methods result in a very powerful and accurate tool. The hydrodynamical equations are written in a moving frame which mimics the bulk of the movement of the fluid, resulting in very small relative velocities and a well suited spatial resolution throughout the calculations. Therefore, the numerical calculations are considerably simplified, smoothing in particular the Courant condition. Typical runs are performed within a few hours on a workstation with the high accuracy linked to the spectral methods. Predictions of the so-called affine are tested against this full numerical simulation.
description: 11 pages, 9 PostScript figures (available as uuencoded compressed tar file), uses epsfig.tex, l-aa.sty (LaTeX style file for Astronomy & Astrophysics, vers. 3.0). Accepted on April 1995 for publication in Astronomy & Astrophysics Adding figure 1
title: ADCO, Cartulaire de l'office de la Porte de l'abbaye de Cîteaux, Registrum possessionum porte Cistercii (début XVe siècle), Cart. 172 (11 H 69), 115 folios, f. 0038
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: Cartulaire de l'office de la Porte de l'abbaye de Cîteaux, Registrum possessionum porte Cistercii (début XVe siècle), Archives départementales de la Côte-d'Or, Cart. 172 (11 H 69), 115 folios, f. 0038, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'office de la Porte de l'abbaye de Cîteaux, Registrum possessionum porte Cistercii (début XVe siècle), Archives départementales de la Côte-d'Or, Cart. 172 (11 H 69), 115 folios, f. 0038, 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
Data - Evaluating Habitable Room compliance of Entrance Structures.
Creators: name: Serfontein, Rudi
Publisher: name: figshare
Year: 2018
Subjects: subject: 120101 Architectural Design
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 120201 Building Construction Management and Project Planning
subject: FOS: Civil engineering

description: Overall compliance, and all the resulting data which the researcher collected. Example of the site survey used by the researcher to collect the data in a real-world state.
The Mass and Age of Very Low Mass Members of the Open Cluster Alpha Persei
Creators: name: Basri, Gibor
name: Martin, Eduardo L.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present spectroscopic optical and photometric infrared observations of 12 faint candidate members of the young open cluster Alpha Persei found by Prosser (1994). Keck HIRES echelle spectra provide radial and rotational velocity measurements for five objects, two of which are clearly nonmembers based on the radial velocities. These kinematic nonmembers also do not fit well in the V-I vs I-J cluster sequence. One additional faint object is likely a nonmember based on a low-resolution spectrum. Using HIRES, we have searched for the Li I resonance line. Combining the absence/presence of lithium and photometry of the faint Alpha Persei targets with confirmed membership constrains their ages and masses. The lack of lithium in AP J0323+4853 implies its age is greater than about 65 Myr, which is older than the cluster classical upper main-sequence turnoff age of 50 Myr. A similar age discrepancy is found in the Pleiades. We detect lithium in the faintest of our program stars, AP270, which implies a mass for it just at the substellar mass limit, given our adopted age and its luminosity. The membership of AP281 is in question because of its high radial velocity compared with the cluster mean. On the other hand AP281 lies on the photometric cluster sequence, and has a very high rotation velocity and H-alpha emission, indicating youth. If a member, its lack of lithium would push the minimum age of the cluster to 75 Myr, in agreement with a very recent upper main-sequence determination. In that case, AP270 would not be a brown dwarf.
description: Accepted by ApJ. The first lithium detection of a VLM star in Alpha Per
Behaviour and design of high strength steel structures
Creators: name: Wang, Jie
Publisher: name: Imperial College London
Year: 2016

description: High strength steels (HSS), which are generally considered to be those with yield strengths over 460 MPa, are being increasingly utilised in construction, particularly in high rise structural applications and where long and column-free spans are an important design requirement. In place of ordinary carbon steels, the use of HSS can enable structural elements with smaller cross-sections, resulting in significant material savings. However, compared to normal strength steels, the structural use of HSS is still quite rare. The European design code EN 1993-1-12 provides design rules for HSS up to S700, but was conceived as a simple extension of the rules in EN 1993-1-1 for normal strength steels. In order to contribute to the existing limited HSS data pool and to verify and develop the current Eurocode 3 design rules, a comprehensive experimental programme on hot-finished S460 and S690 square and rectangular hollow sections has been carried out. The testing programme covered different structural aspects at the material, cross-section and member levels and consisted of 40 tensile coupon tests, 11 compressive coupon tests, 11 stub column tests, 11 full section tensile tests, 22 in-plane bending tests, 12 eccentrically loaded stub column tests, 30 long column tests, as well as measurements of geometrical imperfections and residual stresses. Numerical models, validated against the test results, were also developed to examine the cross-section and member behaviour, and subsequently employed in a comprehensive parametric study in order to generate further data. Based on the combined test and numerical data set, as well as experimental results reported in the literature, the current HSS design rules in Eurocode 3, including the slenderness limits for cross-section classification, effective width equation, N-M interaction curves and column buckling curves, were assessed by means of reliability analyses in accordance with Annex D of EN 1990. To realise the potential of HSS in long span structures, a novel structural form was also examined, namely an HSS truss with prestressing cables housed within the tubular bottom chord. A total of 4 prestressed trusses, made of S460 square hollow sections with different prestress levels, were tested under static downward loading. The truss test results showed the enhanced structural efficiency brought about by the addition of prestressing cables and by the application of prestress. Additionally, 12 tensile and 10 compressive member tests with cables, representing the bottom chord of the truss under gravity and uplift loading, respectively, were carried out to investigate the behaviour of individual prestressed cable-in-tube members. Analytical models and numerical models were also established to compare with the test behaviour and to contribute to the development of design rules for prestressed cable-in-tube systems.
Rumex maritimus Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Polygonales
Polygonaceae
Rumex
Rumex maritimus

description: Rumex maritimus Linnaeus, Species Plantarum 1: 335. 1753.
"Habitat in Europae litoribus maritimis." RCN: 2585.
Lectotype (Jonsell & Jarvis in Nordic J. Bot. 14: 154. 1994): Herb. Linn. No. 150.3 (S).
Current name: Rumex maritimus L. (Polygonaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part R), pp. 785-805 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 804, DOI: 10.5281/zenodo.291971
From Linear to Nonlinear Responses of Thermal Pure Quantum States
Creators: name: Endo, Hiroyuki
name: Hotta, Chisa
name: Shimizu, Akira
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We propose a self-validating scheme to calculate the unbiased responses of quantum many-body systems to external fields of arbibraty strength at any temperature. By switching on a specified field to a thermal pure quantum state of an isolated system, and tracking its time evolution, one can observe an intrinsic thermalization process driven solely by many-body effects. The transient behavior before thermalization contains rich information on excited states, giving the linear and nonlinear response functions at all frequencies. We uncover the necessary conditions to clarify the applicability of this formalism, supported by a proper definition of the nonlinear response function. The accuracy of the protocol is guaranteed by a rigorous upper bound of error exponentially decreasing with system size, and is well implemented in the simple ferromagnetic Heisenberg chain, whose response at high fields exhibits a nonlinear band deformation. We further extract the characteristic features of excitation of the spin-1/2 kagome antiferromagnet; the wavenumber-insensitive linear responses from the possible spin liquid ground state, and the significantly broad nonlinear peaks which should be generated from numerous collisions of quasi-particles, that are beyond the perturbative description.
description: published version; 6 pages with 3 figures, and Supplemental Material
Self-Concept and Mental Health of the Higher Secondary Students in Alipurduar District.pdf
Creators: name: Halder, Ujjwal Kumar
Publisher: name: figshare
Year: 2018
Subjects: subject: 170103 Educational Psychology
subject: FOS: Psychology
subject: Education

description: The focus of this study is to examine the correlation between Self-concept and Mental Health of the higher secondary level students in Alipurduar district. In this paper, two standardized test were adopted namely, Self-concept Scale developed by Singh and Singh (1988) and Mental Health Inventory (MHI) developed by Jagdish and Srivastav (1995) to collect the data from four higher secondary schools among which two are rural and two are urban schools. Significant correlation between self-concept and mental health has been found among total students, male and urban students. It also shows that no significant correlation between self-concept and mental health of female and rural students of higher secondary level.
Figures - Evaluating Habitable Room compliance of Entrance Structures.
Creators: name: Serfontein, Rudi
Publisher: name: figshare
Year: 2018
Subjects: subject: 120101 Architectural Design
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 120201 Building Construction Management and Project Planning
subject: FOS: Civil engineering

description: These Figures contains the regional layout of the City of Tshwane. Region 1 - Region 7 is also presented individually. Furthermore, there is a combined set of guidelines to ensure optimal compliance for entrance structures at gated communities in South Africa.
Closterocerus porphyriops Hansson 2022, sp.nov.
Creators: name: Hansson, Christer
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eulophidae
Closterocerus
Closterocerus porphyriops

description: Closterocerus porphyriops sp.nov.
(Figs 143, 144)
 Diagnosis. Antenna flattened, scape widest at apex (Fig. 144); pronotal collar with a carina along anterior margin (Fig. 143); midlobe of mesoscutum with three pairs of setae (Fig. 143); hind tarsus with T1 dark brown, T2–4 white (Fig. 143); fore wing hyaline with median one-third and apical margin infuscate (Figs 143, 144); length of body female 1.1mm.
Female holotype: length of body 1.1mm.
 Antenna dark brown. Frons golden-green. Vertex metallic purple. Mesoscutum and dorsellum metallic purple. Mesoscutellum golden-green with lateral and posterior margins metallic purple. Propodeum dark brown with metallic tinges. Coxae, femora, mid and hind tibiae dark brown; fore tibia, fore and mid tarsi white, hind tarsus with T1 dark brown, T2–4 white. Fore wing hyaline with median one-third and apical margin infuscate, hind wing hyaline. Petiole dark brown. Gaster with Gt 1 metallic purple, remaining tergites dark brown.
Antenna flattened, scape widest at apex. Frons and vertex with strong reticulation. Fronto-facial suture V-shaped. Subtorular sutures present. Occipital margin rounded.
Pronotal collar with a carina along anterior margin. Mesoscutum with strong reticulation; notauli distinct in anterior two-thirds; midlobe with three pairs of setae. Mesoscutellum ±flat, with relatively weak reticulation. Dorsellum convex and smooth. Propodeum with weak reticulation, without median carina; callus with two setae. Fore wing speculum closed; with a stigmal hairline and with radial cell bare.
Petiole very short, just a narrow band. Gaster short-ovate; tergites smooth.
Relative measurements: head length dorsal 16; head length frontal 20; head width 31; POL 5; OOL 2.5; lateral ocellus maximum width 2.5; eye length 15.5; malar space 5; mouth width 6; mesosoma length 36; mesosoma width 26; mesoscutellum length 15.5; mesoscutellum width 15.5; fore wing length 55; fore wing width 32; marginal vein length 29; postmarginal vein length 1.5; stigmal vein length 5; fore wing marginal fringe length 5; gaster length 35; gaster width 25.
Male. Unknown.
 Hosts. Unknown.
 Distribution. Venezuela.
 Material examined.
Type material. Holotype ♀ “ VENEZUELA: Araqua, Rancho Grande, 28.v.1990, 3650´, J.B. Woolley, 90/003” (TAMU).
 Etymology. From the Greek porphyrio = purple, violet, and ops = appearance, referring to the colour of mesoscutum.
description: Published as part of Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., pp. 1-137 in Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) (Oxford, England) 1 (1) on page 69, DOI: 10.5281/zenodo.6464279
Biological Effects of Stellar Collapse Neutrinos
Creators: name: Collar, J. I.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Massive stars in their final stages of collapse radiate most of their binding energy in the form of MeV neutrinos. The recoil atoms that they produce in elastic scattering off nuclei in organic tissue create radiation damage which is highly effective in the production of irreparable DNA harm, leading to cellular mutation, neoplasia and oncogenesis. Using a conventional model of the galaxy and of the collapse mechanism, the periodicity of nearby stellar collapses and the radiation dose are calculated. The possible contribution of this process to the paleontological record of mass extinctions is examined.
description: gzipped PostScript (filename.ps.Z), 12 pages. Final version, Phys. Rev. Lett., in press
The Fundamental Need for a SM Higgs and the Weak Gravity Conjecture
Creators: name: Gonzalo, Eduardo
name: Ibáñez, Luis E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Compactifying the SM down to 3D or 2D one may obtain AdS vacua depending on the neutrino mass spectrum. It has been recently shown that, by insisting in the absence of these vacua, as suggested by {\it Weak Gravity Conjecture} (WGC) arguments, intriguing constraints on the value of the lightest neutrino mass and the 4D cosmological constant are obtained. For fixed Yukawa coupling one also obtains an upper bound on the EW scale $\left\langle H\right\rangle\lesssim {Λ_4^{1/4}} /{Y_{ν_{i}}}$,where $Λ_4$ is the 4D cosmological constant and $Y_{ν_{i}}$ the Yukawa coupling of the lightest (Dirac) neutrino. This bound may lead to a reassessment of the gauge hierarchy problem. In this letter, following the same line of arguments, we point out that the SM without a Higgs field would give rise to new AdS lower dimensional vacua. Absence of latter would require the very existence of the SM Higgs. Furthermore one can derive a lower bound on the Higgs vev $\left\langle H\right\rangle\gtrsim Λ_{\text{QCD}}$ which is required by the absence of AdS vacua in lower dimensions. The lowest number of quark/lepton generations in which this need for a Higgs applies is three, giving a justification for family replication. We also reassess the connection between the EW scale, neutrino masses and the c.c. in this approach. The EW fine-tuning is here related to the proximity between the c.c. scale $Λ_4^{1/4}$ and the lightest neutrino mass $m_{ν_i}$ by the expression $ \frac {ΔH}{H} \lesssim \frac {(aΛ_4^ {1/4} -m_{ν_i})} {m_{ν_i}}. $ We emphasize that all the above results rely on the assumption of the stability of the AdS SM vacua found.
description: 11 pages, 3 figures
Distributed control in the smart grid
Creators: name: De Paola, Antonio
Publisher: name: Imperial College London
Year: 2015

description: This thesis addresses some of the challenges that arise when the new smart grid paradigm is applied to power systems. In particular, novel control strategies are designed to deal in a decentralized matter with the increasing complexity of the network. Two main areas are investigated: participation to frequency control of variable-speed wind turbines and management of large populations of competing agents (e.g. micro-storage devices and "smart appliances") that exchange energy with the system. The first part of this work presents two different techniques that allow wind turbines to provide frequency response: following the trip of a large power plant, the turbines population increases its aggregate generated power, reducing the resulting drop in frequency. A first method models the wind turbines as stochastic hybrid systems: the generators switch randomly between two operative modes characterized by different efficiency and generated power at equilibrium. Transitions are driven by frequency-dependent switching functions: single generators behave randomly while large populations perform deterministically, changing the total power in response to frequency variations. The second proposed control strategy allows a prescribed increase in generation, distributing the control effort among the individual turbines in order to maximize the duration of frequency support or minimize the resulting kinetic energy losses. The second part of the thesis deals with large populations of agents which determine their operation strategy in response to a broadcast price signal. Micro-storage devices performing energy arbitrage are initially considered: each agent charges/discharges during the day in order to maximize its profit. By approximating the number of devices as infinite, modelling the population as a continuum and describing the problem through a differential game with infinite players (mean field game), it is possible to avoid synchronicity phenomena and determine an equilibrium for the market. Finally, the similar case of flexible demand is analyzed, with price-responsive appliances that schedule their power consumption in order to minimize their energy cost. Necessary and sufficient conditions for the existence of a Nash equilibrium are provided, extending the results by introducing time-varying constraints on the power rate and considering partial flexibility of the devices.
Sloshing simulations with the smoothed particle hydrodynamics (SPH) method
Creators: name: Green, Mashy David
Publisher: name: Imperial College London
Year: 2016

description: The main aims of this work are to identify, verify, and validate a smoothed particle hydrodynamics (SPH) method for simulating long duration transient and steady- state fluid sloshing in complex geometries. The validation will be carried out by comparing the SPH simulations against experimental data provided by ESA/ESTEC for transient and steady-state sloshing in a rectangular tank with a low filling ratio and of transient sloshing in a pill-shaped tank that exhibits transition from swaying to swirling waves. The experimental tests proved to be extremely challenging due to the low fill ratio of the rectangular tank and the long duration of both experiments. The main challenge is to devise a SPH scheme that balances spatial and temporal accuracy with an efficient computer implementation to produce accurate simulations at a reasonable computing cost. The investigation highlighted three issues of critical importance: the treatment of solid boundaries in order to limit the introduction numerical errors into the system; the application of a correct numerical dissipation scheme to reduce existing numerical errors; and the need for a massively parallel implementation.. Careful examination of the most suitable techniques led to the adoption a cor- rected δ-SPH scheme that provides numerical dissipation to reduce spurious pressure oscillations, and a fixed ghost particle boundary condition to accurately impose wall boundary conditions. The proposed SPH methods were coded in the open source parallel code DualSPHysics. The implementation showed significant improvements in energy conservation and solution accuracy when compared to state-of-the-art SPH methods, and accurately reproduced known analytical solutions to linear sloshing. The validation against the ESA/ESTEC experimental data showed excellent agreement between the SPH simulations and experiments, accurately reproducing the time history of wave heights and sloshing forces as well as capturing the full free-surface shapes. Only the careful selection of appropriate boundary conditions, artificial dissipation and a massively parallel GPU architecture allowed to accurately simulate these experiments.
Radiographic imaging of subsea pipelines
Creators: name: Haith, Misty Isanna
Publisher: name: Imperial College London
Year: 2016

description: Subsea pipelines are increasingly being used both around offshore drilling facilities and for long distance oil and gas transport. Accidents can have devastating environmental and economic impact, amplifying the need for accurate, reliable detection and characterisation of pipeline defects. Inspection of these pipelines for corrosion and other defects is crucial for safe operation. Radiography holds a significant advantage over many other inspection methods in that it does not require surface preparation or insulation removal. Subsea pipeline radiography is a relatively new technique, and underwater conditions are not covered by radiographic standards. Water can have a significant impact on a radiographic image and access is very difficult, meaning standardised above-water methods may not be applicable. This is particularly the case for defect characterisation; standard methods often call for calibration objects to be included in the setup, which can be a very complex operation in subsea conditions. There is also a lack of experimental data for research, due to the difficulty and high costs associated with subsea radiography. Simulation is one of the key ways of assessing inspection problems, however radiographic simulation models have not been validated for subsea inspections. This thesis addresses the two problems of accurate subsea simulation and alternative defect characterisation methods. Firstly the accuracy of a radiographic simulation model applied to subsea pipeline inspections is investigated. Experimental measurements of a sample in a water tank are used to adjust the simulation, with the aim of matching image quality parameters - such as signal-to-noise ratio and contrast. The simulation has been partially matched to experiment, with some differences found in contrast-to-noise ratio. Possible causes of the differences are analysed, with the most likely cause found to be detector backscatter and additional scatter from out-of-setup objects within the experimental exposure bay. The simulation model is then used to provide data for development and testing of a defect characterisation method. The method relies on knowledge of the setup geometry and use of multiple images, and does not require calibration objects to be included in the setup. It is specifically aimed at use in situations where access is difficult such as in subsea pipeline inspections. The method is tested on simulated and experimental flat bottomed hole defects and simulated corrosion patch defects. Results demonstrate a good, consistent ability to calculate lateral and axial defect dimensions. Defect thickness calculations are more difficult and as such errors are more significant. However, errors in thickness are due to overestimation, meaning the calculation could be used to place a maximum limit on potential defect size rather than as an actual estimate of the thickness.
Structural biology of the PRELI-TRIAP1 mitochondrial lipid transport system
Creators: name: Miliara, Xeni
Publisher: name: Imperial College London
Year: 2016

description: Mitochondria are involved in major cellular functions including energy production, phospholipid metabolism, stress responses and apoptosis, which are ultimately interconnected to provide cellular sustainability. Subsequently, deficiencies in mitochondrial functions are implicated in a plethora of pathological conditions including metabolic disorders, neurodegenerative disease and cancer, underlining the importance of the mechanisms involved in the fundamentals of mitochondrial biology. A hallmark of mitochondrial defects is morphological faults in their distinct membrane architecture. Maintenance of mitochondrial membrane integrity is therefore tightly connected to normal mitochondrial function and to the overall cellular homeostasis. Mitochondrial membrane integrity requires mechanisms that provide constant phospholipid supply to satisfy physiological and stress responses of the organelle. The mechanisms of phospholipid transport between mitochondrial membranes have remained unknown until the identification of the PRELI-TRIAP1 system. PRELI proteins and TRIAP1 assemble in a single unit in mitochondria to regulate phospholipid distribution between mitochondrial membranes. This mechanism appears to be fundamental as it is conserved across all eukaryotes. The ultimate goal of this project was to determine the high resolution 3D structure of the PRELI domain towards the understanding of the molecular mechanisms involved in lipid transport by the PRELI-TRIAP1 system. The work presented here describes structural and biophysical characterisation of human PRELID-TRIAP1 complexes, which, based on structural homology and similarity are important regulators involved in the CL and PE synthetic pathways in mitochondria. Using an MBP expression system, we crystallised and solved the structures of human TRIAP1, and human PRELI domains of PRELID3A and PRELID3B in complex with TRIAP1. Together with mutagenesis, and liposome based functional assays, these atomic details have advanced our understanding of the PRELI-TRIAP1 mechanism, within the wider context of phospholipid metabolism within cells.
Optoelectronic properties of new conjugated materials
Creators: name: Casey, Abby
Publisher: name: Imperial College London
Year: 2016

description: Next-generation electronic devices which are cheap, lightweight and flexible could be realised through the use of solution processable organic polymer and small molecule semiconductors. Unlike inorganic semiconductors such as silicon, soluble organic semiconductors could be processed using traditional high through-put printing techniques such as roll-to-roll processing and ink-jet printing, which would dramatically reduce manufacturing costs. Whilst organic semiconductors are not expected to be as high performance as inorganic semiconductors, improvements in performance are still required before commercialisation is possible. One way to help improve performance is to exploit the chemical versatility of organic materials. Many different structures can be synthesised through chemical modification, allowing the optoelectronic properties (such as the optical band gap and energy levels) and physical properties (such as solid state structure) of the material to be tuned. Materials can therefore be chemically designed to optimise their performance in organic electronic devices. This work is focused on exploring the relationship between chemical structure, material properties and device performance, through the design and synthesis of new materials for organic field-effect transistors (OFET) and organic photovoltaics (OPV). The majority of the new materials synthesised in this thesis are new donor-acceptor polymers (Chapters 2-6), in which an electron donating monomer and electron accepting monomer are co-polymerised. Whilst there is a vast wealth of different donor monomer structures available, there has been less focus on the synthesis of new electron accepting monomers. In this work the common electron acceptor monomer 2,1,3-benzothiadiazole (BT) is chemically modified to either increase the solubility (Chapter 2) or increase the electron accepting strength (Chapters 3 and 4). Increasing the strength of the electron accepting unit in donor-acceptor polymers was found to induce N-type (electron conducting) behaviour in OFET devices (Chapter 3) or improve OPV performance by reducing the optical band gap and increasing light absorption (Chapter 4). Power conversion efficiencies of ~6.5% in OPV devices were achieved. In chapter 6 a novel BT based acceptor monomer is designed to maximise polymer backbone planarity which resulted in promising hole mobilities of up to 0.5 cm2/Vs when tested in OFET devices. In Chapter 5 the strength of the common electron accepting unit benzo[d][1,2,3]thiadiazole (BTz) is also increased through chemical modification. Similarly to Chapter 4, we find that increasing the strength of the electron accepting unit of the donor-acceptor polymer improves the OPV performance through increased light absorption, resulting in efficiencies of ~6.5% in OPV devices. Finally in Chapter 7, new electron rich conjugated small molecules are synthesised and the optoelectronic properties investigated.
title: ADCO, Premier cartulaire de l'abbaye de Molesmes (XIIe siècle), Cart. 142 (7 H 6), 128 pages, f. 0005r
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/2009
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Premier cartulaire de l'abbaye de Molesmes (XIIe siècle), Archives départementales de la Côte-d'Or, Cart. 142 (7 H 6), 128 pages, f. 0005r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Premier cartulaire de l'abbaye de Molesmes (XIIe siècle), Archives départementales de la Côte-d'Or, Cart. 142 (7 H 6), 128 pages, f. 0005r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Molesme
description: Provenance: http://www.wikidata.org/entity/Q334044
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb137389344
Business experimentation for sustainability
Creators: name: Weissbrod, Ilka
Publisher: name: Imperial College London
Year: 2016

description: Carbon emissions and natural resource depletion are associated with urgent, linear timelines and irreversible damage. In contrast, the commercialization of radical innovations is associated with timelines of 20-40 years. These two timelines are at tension with each other and a shortening of the organizational radical innovation timeline is needed to address urgent sustainable development challenges through new product and service offers. This transdisciplinary PhD research investigates the practice of radical innovation in large firms. It generates insights on how firms pursue explorative innovation activities with the goal of creating social and environmental value whilst capturing economic value. The organizational capability of ‘experimentation’ has been highlighted as the key to improve radical innovation performance in established firms. However, the details of what the experimentation capability might be, and entail in the context of sustainable development challenges is unknown. Furthermore, how experimentation may address the contrasting timelines of organizational innovation and sustainable development challenges has not been explored. To address this gap in the knowledge, this research gathered qualitative data from leading practitioners through semi-structured interviews, followed by an in-depth case study. The insights generated through the data analysis contribute to knowledge in the strategic management and sustainability literature. This research offers a descriptive framework on how firms might build on the innovation process used in lean startup thinking to shorten the radical innovation timeline with the view to develop products and services that create environmental and social value whilst capturing economic value.
A dynamical origin for planets in triple star systems
Creators: name: Fragione, Giacomo
name: Loeb, Abraham
name: Ginsburg, Idan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent radial velocity and transit data discovered $\sim 100$ planets in binary or triple stellar systems out of the entire population of a few thousand known planets. Stellar companions are expected to strongly influence both the formation and the dynamical evolution of planets in multiple star systems. Here, we explore the possibility that planets in triples are formed as a consequence of the dynamical interactions of binaries in star clusters. Our simulations show that the probability of forming a planet-hosting triple as a consequence of a single binary-binary scattering is in the range $0.5-3\%$, when one of the binaries hosts a planet. Along with other formation scenarios, binary-binary encounters are a viable way of creating planet-hosting triple systems. The recently launched TESS satellite is expected to find a larger sample of planets in triple systems, and to shed light on their origin.
description: 7 pages, 4 figures, 2 tables, accepted by MNRAS
Additional file 1 of Coupling metal and whole-cell catalysis to synthesize chiral alcohols
Creators: name: Yin, Hang
name: Luan, Peng-Qian
name: Cao, Yu-Fei
name: Ge, Jun
name: Lou, Wen-Yong
Publisher: name: figshare
Year: 2022
Subjects: subject: Organic Chemistry
subject: FOS: Chemical sciences

description: Additional file 1: Figure S1. (a) HPLC calibration of 4-chlorobenzophenone at 254 nm. (b) HPLC calibration of (S)-4-chlorobenzhydrol at 210 nm. Figure S2. (a) Whole-cell catalyzed reaction at two-phase solvent. (b) Red column: yield to ketone of a tandem catalytic system, ND means no detected of alcohol. This means only ketone detected in concurrent catalytic system. Figure S3. Effect of different single addition of reaction component to whole cell catalysis (PA: phenylboronic acid; pCC: 4-chlorobenzoyl chloride). Figure S4. (A), (B) SEM of E. coli. (C), (D): E. coli stature after chemoenzymatic reaction. Figure S5. GC–MS analysis of 4-chlorobenzophenone. Figure S6. HPLC analysis of 4-chlorobenzophenone and (S)-4-chlorobenzhydrol. Figure S7. 1H NMR and 13C NMR spectrum for 4-chlorobenzophenone.
New Signatures and Sources for the Detection of WIMP Dark Matter in the Solar System
Creators: name: Krauss, Lawrence M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I first outline new results on the angular modulation of WIMP dark matter scattering on targets in terrestrial laboratories, based on our uncertainties of the WIMP halo distribution, I then outline an exciting new result which indicates that for the high end of allowed SUSY WIMP scattering cross sections there exists a new distribution of WIMP dark matter in our solar system which could produce a dramatically different signal from halo WIMP dark matter in terrestrial detectors.
description: 6 pages, latex, including 2 embedded ps files. To appear in Phys. Rep., Proceedings of Workshop on Sources and Detection of Dark Matter, UCLA, Feb 98
Digital quantum computation of fermion-boson interacting systems
Creators: name: Macridin, Alexandru
name: Spentzouris, Panagiotis
name: Amundson, James
name: Harnik, Roni
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We introduce a new method for representing the low energy subspace of a bosonic field theory on the qubit space of digital quantum computers. This discretization leads to an exponentially precise description of the subspace of the continuous theory thanks to the Nyquist-Shannon sampling theorem. The method makes the implementation of quantum algorithms for purely bosonic systems as well as fermion-boson interacting systems feasible. We present algorithmic circuits for computing the time evolution of these systems. The complexity of the algorithms scales polynomially with the system size. The algorithm is a natural extension of the existing quantum algorithms for simulating fermion systems in quantum chemistry and condensed matter physics to systems involving bosons and fermion-boson interactions and has a broad variety of potential applications in particle physics, condensed matter, etc. Due to the relatively small amount of additional resources required by the inclusion of bosons in our algorithm, the simulation of electron-phonon and similar systems can be placed in the same near-future reach as the simulation of interacting electron systems. We benchmark our algorithm by implementing it for a $2$-site Holstein polaron problem on an Atos Quantum Learning Machine (QLM) quantum simulator. The polaron quantum simulations are in excellent agreement with the results obtained by exact diagonalization.
description: 20 pages, 10 figures. arXiv admin note: text overlap with arXiv:1802.07347
Orexigenic action of oral zinc: metabolomic analysis in the rat hypothalamus
Creators: name: Nishiuchi, Mika
name: Sakai, Kumiko
name: Tajima, Hiroyuki
name: Katayama, Kazuo
name: Kimura, Fumiko
name: Hoshi, Seiko
name: Goto, Tomoko
name: Shirakawa, Hitoshi
name: Komai, Michio
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: We previously reported an orexigenic action of oral zinc administration in male Sprague-Dawley (SD) rats during an early stage of feeding with a zinc-deficient diet, without decreased zinc concentrations in tissues. The overall conclusion was that orally but not intraperitoneally administered zinc stimulates food intake in short-term zinc-deficient-diet fed rats. We here investigate the mechanism of the orexigenic action of zinc using GC-MS/MS-targeted metabolomic analysis in the rat hypothalamus. Four-week-old, male SD/Slc rats were used, and after 2 days of feeding with a zinc-deficient diet, 3 mg of ZnSO4 in 5 mL saline solution were administered to each rat either orally or intraperitoneally. Three hours after administration, the rats were sacrificed and the hypothalamus were excised and analyzed. We found that the oral administration group showed increased concentrations of 3-aminopropanoic acid (β-alanine), hypotaurine, dopamine, and biotin. In light of metabolomic analysis of these results, we indicate directions for further research. Plot of the results of an OPLS-DA for Zn-PO (oral) and Zn-IP (intraperitoneal) groups, and S-plot by OPLS-DA revealed several metabolites were increased in the hypothalamus by Zn-PO.
Development of a virtual reality system for studying sensorimotor control in mice and characterisation of neural responses to locomotion in the mouse cerebellum
Creators: name: Muzzu, Tomaso
Publisher: name: Imperial College London
Year: 2016

description: The function of the cerebellum has long been known to be essential in motor control and learning. Electrophysiological studies provided evidence of its involvement in locomotion, a behaviour that requires the coordination of multiple muscles and continuous adjustments to adapt to environmental conditions. Over the last forty years, step movements have been shown to be represented at a single cell level during locomotion. Imaging studies revealed that the activity of segregated populations of cerebellar neurons increases during movement as compared to stationary periods. To date, however, little is known as to how cerebellar neural activity modulates with behavioural state, such as locomotion speed. To this end, we recorded activity of cerebellar neurons from locomotion-related areas of the mouse cerebellum and characterised it during virtual reality (VR) behaviour. Experiments were performed using a novel experimental paradigm, combining a VR behavioural task with multi-unit electrophysiological recordings. As part of the project, a VR system for mice was developed with sufficiently low latency to measure motor behaviour with closed-loop perturbation of sensory information. Detailed protocols were established for the creation and configuration of the system. Behavioural assessment revealed that mice integrated the visual feedback to control their two-dimensional position in the VR environment. In addition, the VR system was integrated with an innovative mechanical perturbation mechanism for generating force fields capable of systematically deviating mouse trajectories in the virtual world. The combination of VR behaviour with a novel perturbation paradigm extends the range of applications of VR systems for studying sensorimotor control. During VR tasks, recordings from populations of neurons in lobules IV-V of cerebellar vermis were performed. Activity in the majority of the isolated units was found to change with locomotion speed. Some of these units were found to be also modulated with yaw velocity and stride pattern of the mouse. Further analysis revealed that these cells did not constitute separate classes of neurons but, instead, encoded all of these quantities to a greater or lesser extent. Furthermore, locomotion speed could be reconstructed with high accuracy with a simple linear decoder of neural activity of these units. These findings indicate that cerebellar activity is strongly modulated by kinematic parameters. Further characterisation of the cerebellar neurons via transgenic techniques and novel behavioural tasks (applicable with the VR system presented here) can help increase our understanding of how movement control is achieved through the cerebellum and probe computational theories of sensorimotor integration.
Large Scale Structure Tests of Warm Dark Matter
Creators: name: Colombi, Stephane
name: Dodelson, Scott
name: Widrow, Lawrence M.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Warm dark matter (WDM) is an intriguing model of structure formation from the point of view of both cosmology and particle physics. We consider a one-parameter family of WDM models. The linear power spectra for these models is calculated and compared with the corresponding spectra for cold dark matter (CDM), hot dark matter (HDM) and mixed dark matter (MDM) as well as the power spectrum derived from observations. Our linear analyses suggest that a model universe dominated by a particle whose mass to temperature ratio $m_x/T_x$ is increased by a factor of two as compared with the standard HDM neutrino gives a reasonable fit to the data on large $(>8h^{-1} {\rm ~Mpc})$ scales. $N$-body simulations for this particular WDM model show features of both HDM and CDM. As in HDM, the first objects to collapse are large pancake-like structures. The final matter distribution is rather smooth and structures as small as galaxy halos are excluded. However, there appear to be virialized rich clusters evident in the CDM but not the HDM simulations. Unfortunately, a simple comparison of the matter distribution and its statistical properties with observations indicates that WDM, like CDM, has too much power at small scales. This is particularly evident in the small-scale pairwize velocity dispersion. The cluster multiplicity function has the wrong shape with too many rich clusters being produced, though this conclusion is based on the simple assumption that light traces mass in groups of galaxies.
description: uuencoded Postscript with most figures included [300 kBytes]. Figures 4-6 [21 MBytes] available directly from authors or at http://fnas08.fnal.gov/pub/Publications/Pub-95-093-A