cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Holographic entanglement renormalisation of topological order in a quantum liquid
Creators: name: Mukherjee, Anirban
name: Lal, Siddhartha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a novel momentum space entanglement renormalization group (MERG) scheme for the topologically ordered (T.O.) ground state of the 2D Hubbard model on a square lattice (\cite{anirbanmotti,anirbanmott2}) using a unitary quantum circuit comprised of non-local unitary gates. At each MERG step, the unitary quantum circuit disentangles a set of electronic states, thereby transforming the tensor network representation of the many-particle state. By representing the non-local unitary gate as a product of two-qubit disentangler gates, we provide an entanglement holographic mapping (EHM) representation for MERG. Using entanglement based measures from quantum information theory and complex network theory, we study the emergence of topological order in the bulk of the EHM. The MERG reveals distinct holographic entanglement features for the normal metallic, topologically ordered insulating quantum liquid and Neél antiferromagnetic symmetry-broken ground states of the 2D Hubbard model at half-filling found in Ref.\cite{anirbanmotti}. An MERG analysis of the quantum critical point of the hole-doped 2D Hubbard model found in Ref.\cite{anirbanmott2} reveals the evolution of the many-particle entanglement of the quantum liquid ground state with hole-doping, as well as how the collapse of Mottness is responsible for the emergence of d-wave superconductivity. We perform an information theoretic analysis of the EHM network, demonstrating that the information bottleneck principle is responsible for the distillation of entanglement features in the heirarchical structure of the EHM network. As a result, we construct a deep neural network (DNN) architecture based on our EHM network, and employ it for predicting the onset of topological order. We also demonstrate that the DNN is capable of distinguishing between the topologically ordered and gapless normal metallic phases.
description: 51 pages, 28 figures, 111 references
Adaptive BEM for elliptic PDE systems, Part I: Abstract framework for weakly-singular integral equations
Creators: name: Gantner, Gregor
name: Praetorius, Dirk
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In the present work, we consider weakly-singular integral equations arising from linear second-order strongly-elliptic PDE systems with constant coefficients, including, e.g., linear elasticity. We introduce a general framework for optimal convergence of adaptive Galerkin BEM. We identify certain abstract properties for the underlying meshes, the corresponding mesh-refinement strategy, and the ansatz spaces that guarantee convergence at optimal algebraic rate of an adaptive algorithm driven by the weighted-residual error. These properties are satisfied, e.g., for discontinuous piecewise polynomials on simplicial meshes as well as certain ansatz spaces used for isogeometric analysis. Technical contributions include local inverse estimates for the (non-local) boundary integral operators associated to the PDE system.
Causality of black holes in 4-dimensional Einstein-Gauss-Bonnet-Maxwell theory
Creators: name: Ge, Xian-Hui
name: Sin, Sang-Jin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study charged black hole solutions in 4-dimensional (4D) Einstein-Gauss-Bonnet-Maxwell theory to the linearized perturbation level. We first compute the shear viscosity to entropy density ratio. We then demonstrate how bulk causal structure analysis imposes a upper bound on the Gauss-Bonnet coupling constant in the AdS space. Causality constrains the value of Gauss-Bonnet coupling constant $α_{GB}$ to be bounded by $α_{GB}\leq 0$ as $D\rightarrow 4$.
description: 13 pages, minor revision, references added
title: 01_2844
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/
Pseudo-effective and numerically flat reflexive sheaves
Creators: name: Wu, Xiaojun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: In this note, we discuss the concept of pseudoeffective vector bundle and also introduce pseudoeffective torsion-free sheaves over compact Kähler manifolds. We show that a pseudoeffective reflexive sheaf over a compact Kähler manifold with vanishing first Chern class is in fact a numerically flat vector bundle. A proof is obtained through a natural construction of positive currents representing the Segre classes of pseudoeffective vector bundles.
description: 45 pages, final version
Translocacion de fotosintatos en sarmientos de la vid durante el periodo vegetativo
Creators: name: Balcar, J.
name: Hernandez, J.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: Translocation of photosynthate in grapevine shoots during the growth period During 4 years, translocation of photosynthate was studied in shoots of three grape varieties supported with 3-wire trellis (2 m) andin five growth stages: pre-flowering, fruit set, prior to ripening, ripening and post-harvest. 14CO2 was applied on the middle leaf of the basal, middle or apical third of the shoot, respectively (volume 200 ml under a plastic bag, 300 ppm of 14CO2 of 3.7 x 106 Bq, 30 min, four shoots per variant). After 5 d, the radioactivity of the triturated tissues of the leaves of each third (excluding the treated leaf), of the clusters and of the growing tip was assayed in cpm/g in a Geiger Müller counter and dpm/mg of dry matter in a liquid scintillation counter. The maximum value of radioactivity within each shoot was taken as 100 % and all other data were related to it. Photosynthate produced in the basal third of the shoot is always translocated to the cluster. The apical third does not export photosynthate. The cluster becomes the principal sink for photosynthate produced in the middle third of the shoot after fruit set, during its most intensive growth.
description: VITIS - Journal of Grapevine Research, Vol. 27 No. 1 (1988): VITIS
Dry matter and nitrogen partitioning and root growth of young field-grown Thompson Seedless grapevines
Creators: name: Araujo, F. J.
name: Williams, L. E.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: Seasonal changes in dry weight and nitrogen distribution were quantified on 2-year-old pruned and unpruned Thompson Seedless grapevines grown in the field. Entire vines were harvested several times during the growing season from budbreak to fruit harvest. Vine dry weight and N coptent increased throughout the season for both treatments, however, the accumulation of both parameters was delayed and of a smaller magnitude for the pruned vines. The increase in root dry weight of the pruned vines occurred later in the season when compared to the unpruned vines, but there was no difference in root dry weight between treatments at the end of the study. Root N content remained constant early in the growing season followed by a significant increase later in the season for both treatments. The root N concentration decreased as a result of an increase in root dry weight, then it leveled off at about 1.2 % for both treatments due to similar rates of root dry matter and N accumulation. The results do not support the role of roots as the major storage organ of N to supply the rest of the plant early in the season for young grapevines. However, N from other permanent structures of the vine supplied between 14 and 26 % of that required for shoot growth shortly after budbreak.
description: VITIS - Journal of Grapevine Research, Vol. 27 No. 1 (1988): VITIS
ECoPANN: A Framework for Estimating Cosmological Parameters using Artificial Neural Networks
Creators: name: Wang, Guo-Jian
name: Li, Si-Yao
name: Xia, Jun-Qing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: In this work, we present a new method to estimate cosmological parameters accurately based on the artificial neural network (ANN), and a code called ECoPANN (Estimating Cosmological Parameters with ANN) is developed to achieve parameter inference. We test the ANN method by estimating the basic parameters of the concordance cosmological model using the simulated temperature power spectrum of the cosmic microwave background (CMB). The results show that the ANN performs excellently on best-fit values and errors of parameters, as well as correlations between parameters when compared with that of the Markov Chain Monte Carlo (MCMC) method. Besides, for a well-trained ANN model, it is capable of estimating parameters for multiple experiments that have different precisions, which can greatly reduce the consumption of time and computing resources for parameter inference. Furthermore, we extend the ANN to a multibranch network to achieve a joint constraint on parameters. We test the multibranch network using the simulated temperature and polarization power spectra of the CMB, Type Ia supernovae, and baryon acoustic oscillations, and almost obtain the same results as the MCMC method. Therefore, we propose that the ANN can provide an alternative way to accurately and quickly estimate cosmological parameters, and ECoPANN can be applied to the research of cosmology and even other broader scientific fields.
description: 21 pages, 14 figures, and 7 tables. Corrected typo in section 2.3.2. The code repository is available at https://github.com/Guo-Jian-Wang/ecopann
Campylobacter jejuni as a Cause of Acute Infectious Thyroiditis, on a Background of SLE-related End Stage Renal Failure and CMV Viraemia: A Case Report and Review of the Literature
Creators: name: Diggins B
name: Diaz-Cano, Salvador J.
name: Schulte KM
Publisher: name: figshare
Year: 2014
Subjects: subject: Pathology
subject: Microbiology
subject: FOS: Biological sciences
subject: 60506 Virology
subject: Medicine
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Acute suppurative thyroiditis is a rare cause of thyroid disease; however it is capable of causing widespread systemic illness, with catastrophic complications. A large number of causative pathogens have been identified, the most common being Staphylococcus and Streptococcal species. We report a rare case of acute suppurative thyroiditis, caused by Campylobacter jejuni in a patient with systemic lupus erythematosus-related end-stage renal failure and excessive CMV viraemia. She developed severe respiratory compromise and required emergency total thyroidectomy and central neck clearance, which cured the local septic focus. The patient died from refractory sepsis due to E. coli.
Wittig Olefination Using Phosphonium Tetraphenylborate in the Absence of Additional Base
Creators: name: Wenhua Huang
name: Shuang-Hong Zhao
name: Dong, Guang-Ping
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Sociology
subject: FOS: Sociology
subject: Ecology
subject: FOS: Biological sciences
subject: Earth and Environmental Sciences
subject: Cell Biology

description: GRAPHICAL ABSTRACT
Stability and bifurcation phenomena in asymptotically Hamiltonian systems
Creators: name: Sultanov, Oskar A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34C23, 34D10, 34D20, 37J65

description: The influence of time-dependent perturbations on an autonomous Hamiltonian system with an equilibrium of center type is considered. It is assumed that the perturbations decay at infinity in time and vanish at the equilibrium of the unperturbed system. In this case the stability and the long-term behaviour of trajectories depend on nonlinear and non-autonomous terms of the equations. The paper investigates bifurcations associated with a change of Lyapunov stability of the equilibrium and the emergence of new attracting or repelling states in the perturbed asymptotically autonomous system. The dependence of bifurcations on the structure of decaying perturbations is discussed.
description: 18 pages, 5 figures
Synthesis of Terminal Vinylphosphonates Via Dbu-Promoted Tandem Phospha-Michael/Elimination Reactions
Creators: name: Hui-Xuan Chen
name: Huang, Lin-Jie
name: Liu, Jin-Biao
name: Weng, Jiang
name: Lu, Gui
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Science Policy
subject: Biological Sciences
subject: Earth and Environmental Sciences
subject: Molecular Biology
subject: Cell Biology
subject: Microbiology
subject: FOS: Biological sciences
subject: Biochemistry

description: GRAPHICAL ABSTRACT
The vote of Italians abroad: an anomaly in the new Italian political landscape?
Creators: name: Battiston, Simone
name: Luconi, Stefano
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 4303
subject: Historical studies
classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: In the parliamentary elections of 2018, right-wing populism and anti-establishment politics profoundly reshaped Italy’s electoral geography and party system. The xenophobic Lega (League) and the anti-establishment Movimento 5 Stelle (Five-star Movement, M5s) made substantial electoral gains in the domestic constituencies, paving the way for a coalition government. Outside Italy, in the constituency for Italians resident abroad, the primacy of pro-system and pro-European parties continued to be affirmed. This article examines the extent to which the ex-patriot vote represented an anomalous feature of the new Italian political landscape. It demonstrates that the electoral behaviour of Italians resident abroad showed patterns of continuity with the past, amid important signs of change. The predominance of the moderate-progressive vote was challenged by the advancement of the anti-establishment and conservative forces. However, what the 2018 elections ultimately revealed, perhaps more than any other previous poll, are the existential challenges that this model of extraterritorial voting and representation now faces, including: low turnouts; allegations of electoral fraud; negative media coverage, and controversial changes to the electoral law, which gave momentum to proposals for constitutional reforms aiming at reducing the number of MPs representing constituencies abroad.
Synthesis, Characterization, and Reactivity of 2,2′-Oxydiethanol Complexes of Silicon
Creators: name: Gurjaspreet Singh
name: Sheenam Girdhar
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Cell Biology

description: GRAPHICAL ABSTRACT
Bringing Anatomical Information into Neuronal Network Models
Creators: name: van Albada, Sacha Jennifer
name: Morales-Gregorio, Aitor
name: Dickscheid, Timo
name: Goulas, Alexandros
name: Bakker, Rembrandt
name: Bludau, Sebastian
name: Palm, Günther
name: Hilgetag, Claus-Christian
name: Diesmann, Markus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: For constructing neuronal network models computational neuroscientists have access to wide-ranging anatomical data that nevertheless tend to cover only a fraction of the parameters to be determined. Finding and interpreting the most relevant data, estimating missing values, and combining the data and estimates from various sources into a coherent whole is a daunting task. With this chapter we aim to provide guidance to modelers by describing the main types of anatomical data that may be useful for informing neuronal network models. We further discuss aspects of the underlying experimental techniques relevant to the interpretation of the data, list particularly comprehensive data sets, and describe methods for filling in the gaps in the experimental data. Such methods of `predictive connectomics' estimate connectivity where the data are lacking based on statistical relationships with known quantities. It is instructive, and in certain cases necessary, to use organizational principles that link the plethora of data within a unifying framework where regularities of brain structure can be exploited to inform computational models. In addition, we touch upon the most prominent features of brain organization that are likely to influence predicted neuronal network dynamics, with a focus on the mammalian cerebral cortex. Given the still existing need for modelers to navigate a complex data landscape full of holes and stumbling blocks, it is vital that the field of neuroanatomy is moving toward increasingly systematic data collection, representation, and publication.
Wittig Olefination Using Phosphonium Tetraphenylborate in the Absence of Additional Base
Creators: name: Wenhua Huang
name: Shuang-Hong Zhao
name: Dong, Guang-Ping
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Sociology
subject: FOS: Sociology
subject: Ecology
subject: FOS: Biological sciences
subject: Earth and Environmental Sciences
subject: Cell Biology

description: The thermal decomposition of (substituted methyl)triphenylphosphonium tetraphenylborates, which can also be generated in situ from the corresponding phosphonium halide and NaBPh4, with an aldehyde affords olefins in 22-100% yields. This Wittig olefination does not need use additional base to form phosphorus ylide, and is highly tolerant of benzoic acid.Graphical abstract:
Systematics of Type IIA moduli stabilisation
Creators: name: Marchesano, Fernando
name: Prieto, David
name: Quirant, Joan
name: Shukla, Pramod
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyse the flux-induced scalar potential for type IIA orientifolds in the presence of $p$-form, geometric and non-geometric fluxes. Just like in the Calabi-Yau case, the potential presents a bilinear structure, with a factorised dependence on axions and saxions. This feature allows one to perform a systematic search for vacua, which we implement for the case of geometric backgrounds. Guided by stability criteria, we consider configurations with a particular on-shell F-term pattern, for which we derive a no-go result for de Sitter extrema. We classify branches of supersymmetric and non-supersymmetric vacua, and argue that the latter are perturbatively stable for a large subset of them. Our solutions reproduce and generalise previous results in the literature, obtained either from the 4d or 10d viewpoint.
description: 41 pages + appendices, 2 figures; v2: minor corrections and references added
Ergebnisse zehnjähriger Untersuchungen über die Eignung der Eindrahterziehung für Weitraum-Hochkulturanlagen
Creators: name: Redl, H.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: Results of a ten-year study on the suitability of one-wire training for wide-spaced, high-trunked plantation of grapevine During 1977-1986, investigations were carried out in the low-rainfall region of Krems, Lower Austria, to compare two training methods. Green Veltliner vines on Kober 5 BB rootstock, growing in a wide-spaced vineyard (3.4 m x 1.2 m), were trained to horizontal bilateral cordons, either by the traditional Lenz-Moser system with a trunk height of 1.35 m and trellis support by three pairs of wires, or according to the recently popularized one-wire system (reversal upbringing, high cordon), with a stem height of 1.70 m and just one wire supporting the espalier. From the results obtained, it was obvious that the Moser training system resulted in an enlarged leaf area with better distribution and improved light exposition of the leaves. The fruits were healthier and less affected by Botrytis cinerea, Oidium tuckeri and stiellaehme (grape peduncle necrosis). Accordingly, a high grape yield of good quality was achieved compared with the onewire training system. No differences could be traced between the two training systems with respect to expenditure of time, labour and money. Suggestions were made for improving the one-wire training system in order to obtain optimum benefits.
description: VITIS - Journal of Grapevine Research, Vol. 27 No. 1 (1988): VITIS
title: Defending the Right to Communicate: Anonymity and Filter Traversal & Fair Validation of Database Replies
title: Das Recht auf Kommunikation verteidigen: Anonymitaet und Filter-Unterwanderun
Creators: name: Bauer, Matthias
Publisher: name: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Year: 2005
Subjects: subject: Databases Anonymity
subject: DDC Classification::0 Informatik, Informationswissenschaft, allgemeine Werke :: 00 Informatik, Wissen, Systeme :: 004 Datenverarbeitung; Informatik

description: This dissertation consists of two parts. The main thesis of the first part is that secret, two-party communication cannot be prevented on the Internet, regardless of filtering methods. We show how partners can arrange a channel for further communication despite active filtering. We examine covert channels on all layers of the TCP/IP stack and its main application protocols. We describe anonymizing techniques and their limits in certain scenarios. By combining covert channels in a popular protocol and anonymization we develop a messaging protocol which allows unobservable communication. In the second part of the dissertation we present a protocol for the interactive validation of database replies. The protocol is efficient in the number and size of the messages exchanged. A special property is that even the non-existence of records can be verified efficiently.
description: Die Arbeit besteht aus zwei Teilen. Die Hauptaussage des ersten Teils besteht darin, dass geheime Zwei-Wege-Kommunikation im Internet nicht verhindert werden kann, unabhaengig von etwaigen Filtermethoden. Wir zeigen wie Partner Kanaele fuer spaetere Kommunikation auch unter aktiver Filterung anlegen koennen. Wir untersuchen verdeckte Kanaele auf allen Schichten des TCP/IP Schichtmodells und der wichtigsten Anwendungsprotokolle. Wir beschreiben Anonymisierungstechniken und ihre Beschraenkungen in bestimmten Szenarien. Durch Kombination von verdeckten Kanaelen in einem verbreiteten Protokoll und Anonymisierung entwickeln wir ein Nachrichtenprotokoll das unbeobachtbare Kommunikation erlaubt. Im zweiten Teil der Dissertation stellen wir ein Protokoll zur interaktiven Ueberpruefung von Datenbank-Antworten vor. Das Protokoll ist effizient in der Anzahl und Groesse der ausgetauschten Nachrichten. Eine besondere Eigenschaft ist, dass sogar die Nicht-Existenz von Eintraegen effizient verifiziert werden kann.
Ploidy stability in grapevines following long term storage in vitro
Creators: name: Skene, K. G. M.
name: Goodwins, D. R.
name: Barlass, M.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: A modified method to prepare root tip squashes was used for the routine examination of chromosomes of grapevines developed from in vitro shoot cultures. The results established that adventitious buds obtained by culture of fragmented shoot apices were diploid, and that storage at 9.5 °C of multiple shoot cultures of eight Vitis genotypes for periods up to 12 months did not affect the ploidy level of plants regenerated from them.
description: VITIS - Journal of Grapevine Research, Vol. 27 No. 1 (1988): VITIS
Carbofunctional Silatrane Possessing Imidazole Moiety: Synthesis, Characterization, and Antibacterial Studies
Creators: name: Gurjaspreet Singh
name: Sheenam Girdhar
name: Sharma, Raj Pal
name: Przemysław Starynowicz
name: Singh, Baljinder
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Science Policy
subject: Developmental Biology
subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Cell Biology
subject: Microbiology
subject: FOS: Biological sciences

description: GRAPHICAL ABSTRACT
Stein factors for variance-gamma approximation in the Wasserstein and Kolmogorov distances
Creators: name: Gaunt, Robert E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary 60F05, 62E17

description: We obtain new bounds for the solution of the variance-gamma (VG) Stein equation that are of the correct form for approximations in terms of the Wasserstein and Kolmorogorov metrics. These bounds hold for all parameters values of the four parameter VG class. As an application we obtain explicit Wasserstein and Kolmogorov distance error bounds in a six moment theorem for VG approximation of double Wiener-Itô integrals.
description: 36 pages
Wall proteins of Vitis vinifera pollen I. Constancy of the phenotype
Creators: name: Cargnello, G.
name: Gianazza, Elisabetta
name: Tedesco, G.
name: Capella, Mariella
name: Gerola, F. M.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: Isoelectric focusing of buffer-soluble wall proteins from pollen grains is suggested for the characterization of different Vitis vinifera cultivars. The protein pattern includes several tens of bands, most of which common to all samples. A few clone-specific components are identified, whose expression is stable over time and independent from the influence of environment.
description: VITIS - Journal of Grapevine Research, Vol. 27 No. 1 (1988): VITIS
Case study data collection methodology (including list of cases for in-depth study) (D3.3)
Creators: name: Pel, Bonno
name: Vadovics, Edina
name: Schmid, Benjamin
name: Markantoni, Marianna
name: Debourdeau, Ariane
name: Thalberg, Karin
name: Losada Puente, Louisa
name: Kemp, Renatus
name: Schäfer, Martina
name: Hajdinjak, Marko
Publisher: name: Zenodo
Year: 2022
Subjects: energy citizenship
case studies
energy democracy
energy transition
climate change

description: This deliverable includes the methodology in EnergyPROSPECTS for an in-depth study of energy citizenship. It features the criteria used for selecting the cases for indepth study, the list of cases selected for in-depth study as well as key research foci and empirical research questions.
Approximating Power Flow and Transmission Losses in Coordinated Capacity Expansion Problems
Creators: name: Neumann, Fabian
name: Hagenmeyer, Veit
name: Brown, Tom
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Systems and Control (eess.SY)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: With rising shares of renewables and the need to properly assess trade-offs between transmission, storage and sectoral integration as balancing options, building a bridge between energy system models and detailed power flow studies becomes increasingly important, but is computationally challenging. W compare approximations for two nonlinear phenomena, power flow and transmission losses, in linear capacity expansion problems that co-optimise investments in generation, storage and transmission infrastructure. We evaluate different flow representations discussing differences in investment decisions, nodal prices, the deviation of optimised flows and losses from simulated AC power flows, and the computational performance. By using the open European power system model PyPSA-Eur we obtain detailed and reproducible results aiming at facilitating the selection of a suitable power flow model. Given the differences in complexity, the optimal choice depends on the application, the user's available computational resources, and the level of spatial detail considered. Although the commonly used transport model can already identify key features of a cost-efficient system while being computationally performant, deficiencies under high loading conditions arise due to the lack of a physical grid representation. Moreover, disregarding transmission losses overestimates optimal grid expansion by 20%. Adding a convex relaxation of quadratic losses with two or three tangents to the linearised power flow equations and accounting for changing line impedances as the network is reinforced suffices to represent power flows and losses adequately in design studies. We show that the obtained investment and dispatch decisions are then sufficiently physical to be used in more detailed nonlinear simulations of AC power flow in order to better assess their technical feasibility.
description: addresses the need for detailed grid modelling in linear energy system models
title: 03_0685
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/
Early bunchstem necrosis in grapes - a cause of poor fruit set
Creators: name: Jackson, D. I.
name: Coombe, B. G.
Publisher: name: VITIS - Journal of Grapevine Research
Year: 2015

description: A disorder affecting the inflorescence of grapevines was identified and described. It occurs at any time from the early appearance of the inflorescence until flowering, causing shrivelling and death of some or all branches on the peduncle or bunch. It seems not to be caused by fungi or other pathological agent. Its appearance and development resemble stiellaehme or bunchstem necrosis (BSN), excepting that it occurs much earlier; thus the name 'early bunchstem necrosis' (EBSN) is suggested. Like BSN its aetiology appears to be related to the effects of specific inorganic chemicals. EBSN-like symptoms were induced by the cations Ca++ and NH4+but no response was found to K + and Mg++. There was considerably more EBSN in shaded compared with unshaded vines. No control or protective measures have so far been found.
description: VITIS - Journal of Grapevine Research, Vol. 27 No. 1 (1988): VITIS
Fully-programmable universal quantum simulator with a one-dimensional quantum processor
Creators: name: Bastidas, V. M.
name: Haug, T.
name: Gravel, C.
name: Kwek, L. -C.
name: Munro, W. J.
name: Nemoto, Kae
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Current quantum devices execute specific tasks that are hard for classical computers and have the potential to solve problems such as quantum simulation of material science and chemistry, even without error correction. For practical applications it is highly desirable to reconfigure the connectivity of the device, which for superconducting quantum processors is determined at fabrication. In addition, we require a careful design of control lines and couplings to resonators for measurements. Therefore, it is a cumbersome and slow undertaking to fabricate a new device for each problem we want to solve. Here we periodically drive a one-dimensional chain to engineer effective Hamiltonians that simulate arbitrary connectivities. We demonstrate the capability of our method by engineering driving sequences to simulate star, all-to-all, and ring connectivities. We also simulate a minimal example of the 3-SAT problem including three-body interactions, which are difficult to realize experimentally. Our results open a new paradigm to perform quantum simulation in near term quantum devices by enabling us to stroboscopically simulate arbitrary Hamiltonians with a single device and optimized driving sequences
description: 13 pages, 11 Figures. Comments are welcome
Optical frequency comb by giant nonlinear capillary waves
Creators: name: Maksymov, Ivan
name: Pototskyy, Andriy
name: Greentree, Andrew D.
Publisher: name: Swinburne
Year: 2024
Subjects: classificationCode: 4901
subject: Applied mathematics
classificationCode: 510203
subject: Nonlinear optics and spectroscopy

description: Nonlinear optical processes are essential for modern photonics and they are possible mostly when light is produced by a high-power laser. However, nonlinear effects of non-optical origin, such as those observed in acoustical and mechanical systems, are many orders of magnitude stronger than optical nonlinearities, and therefore they can be induced with energy that is much lower than that of a laser pulse. Here, we experimentally confirm our theoretical prediction of the possibility to convert giant acoustic and capillary wave nonlinearities into optical signals, thereby effectively reproducing the result of a conventional nonlinear-optical interaction. We excite highly nonlinear capillary Faraday waves on the surface of a thin layer of ethanol and we reflect a beam of low-power, incoherent light from these waves to produce an optical frequency comb. Our results can be used in many areas of photonics, including new classes of biomedical sensors that do not rely on high laser powers.
Twisted bilayer graphene I. Matrix elements, approximations, perturbation theory and a $k\cdot p$ 2-Band model
Creators: name: Bernevig, B. Andrei
name: Song, Zhi-Da
name: Regnault, Nicolas
name: Lian, Biao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the Twisted Bilayer Graphene (TBG) model to obtain an analytic understanding of its energetics and wavefunctions needed for many-body calculations. We provide an approximation scheme which first elucidates why the BM $K_M$-point centered calculation containing only $4$ plane-waves provides a good analytical value for the first magic angle. The approximation scheme also elucidates why most many-body matrix elements in the Coulomb Hamiltonian projected to the active bands can be neglected. By applying our approximation scheme at the first magic angle to a $Γ_M$-point centered model of 6 plane-waves, we analytically understand the small $Γ_M$-point gap between the active and passive bands in the isotropic limit $w_0=w_1$. Furthermore, we analytically calculate the group velocities of passive bands in the isotropic limit, and show that they are \emph{almost} doubly degenerate, while no symmetry forces them to be. Furthermore, away from $Γ_M$ and $K_M$ points, we provide an explicit analytical perturbative understanding as to why the TBG bands are flat at the first magic angle, despite it is defined only by vanishing $K_M$-point Dirac velocity. We derive analytically a connected "magic manifold" $w_1=2\sqrt{1+w_0^2}-\sqrt{2+3w_0^2}$, on which the bands remain extremely flat as $w_0$ is tuned between the isotropic ($w_0=w_1$) and chiral ($w_0=0$) limits. We analytically show why going away from the isotropic limit by making $w_0$ less (but not larger) than $w_1$ increases the $Γ_M$- point gap between active and passive bands. Finally, perturbatively, we provide an analytic $Γ_M$ point $k\cdot p$ $2$-band model that reproduces the TBG band structure and eigenstates in a certain $w_0,w_1$ parameter range. Further refinement of this model suggests a possible faithful $2$-band $Γ_M$ point $k\cdot p$ model in the full $w_0, w_1$ parameter range.
description: 25+21 pages, 13+7 figures. Published version
Twisted bilayer graphene. II. Stable symmetry anomaly
Creators: name: Song, Zhi-Da
name: Lian, Biao
name: Regnault, Nicolas
name: Bernevig, B. Andrei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show that the entire continuous model of twisted bilayer graphene (TBG) (and not just the two active bands) with particle-hole symmetry is anomalous and hence incompatible with a lattice model. Previous works, e.g., [Phys. Rev. Lett. 123, 036401], [Phys. Rev. X 9, 021013], [Phys. Rev. B 99, 195455], and others [1-4] found that the two flat bands in TBG possess a fragile topology protected by the $C_{2z}T$ symmetry. [Phys. Rev. Lett. 123, 036401] also pointed out an approximate particle-hole symmetry ($\mathcal{P}$) in the continuous model of TBG. In this work, we numerically confirm that $\mathcal{P}$ is indeed a good approximation for TBG and show that the fragile topology of the two flat bands is enhanced to a $\mathcal{P}$-protected stable topology. This stable topology implies $4l+2$ ($l\in\mathbb{N}$) Dirac points between the middle two bands. The $\mathcal{P}$-protected stable topology is robust against arbitrary gap closings between the middle two bands the other bands. We further show that, remarkably, this $\mathcal{P}$-protected stable topology, as well as the corresponding $4l + 2$ Dirac points, cannot be realized in lattice models that preserve both $C_{2z}T$ and $\mathcal{P}$ symmetries. In other words, the continuous model of TBG is anomalous and cannot be realized on lattices. Two other topology related topics, with consequences for the interacting TBG problem, i.e., the choice of Chern band basis in the two flat bands and the perfect metal phase of TBG in the so-called second chiral limit, are also discussed.
description: References added; A figure showing evolution of Dirac nodes added
Topology of Clique Complexes of Line Graphs
Creators: name: Goyal, Shuchita
name: Shukla, Samir
name: Singh, Anurag
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 05C69, 55P15

description: The clique complex of a graph G is a simplicial complex whose simplices are all the cliques of G, and the line graph L(G) of G is a graph whose vertices are the edges of G and the edges of L(G) are incident edges of G. In this article, we determine the homotopy type of the clique complexes of line graphs for several classes of graphs including triangle-free graphs, chordal graphs, complete multipartite graphs, wheel-free graphs, and 4-regular circulant graphs. We also give a closed form formula for the homotopy type of these complexes in several cases.
description: Version 2: Section 3 and Section 5 have been merged, and the proofs have been modified incorporating the referee's comments. To appear in the Art of Discrete and Applied Mathematics
Twisted bilayer graphene III. Interacting Hamiltonian and exact symmetries
Creators: name: Bernevig, B. Andrei
name: Song, Zhi-Da
name: Regnault, Nicolas
name: Lian, Biao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We derive the explicit Hamiltonian of twisted bilayer graphene (TBG) with Coulomb interaction projected into the flat bands, and study the symmetries of the Hamiltonian. First, we show that all projected TBG Hamiltonians can be written as Positive Semidefinite Hamiltonian, the first example of which was found in [PRL 122, 246401]. We then prove that the interacting TBG Hamiltonian exhibits an exact U(4) symmetry in the exactly flat band (nonchiral-flat) limit. We further define, besides a first chiral limit where the AA stacking hopping is zero, a new second chiral limit where the AB/BA stacking hopping is zero. In the first chiral-flat limit (or second chiral-flat limit) with exactly flat bands, the TBG is enhanced to have an exact U(4)$\times$U(4) symmetry, whose generators are different between the two chiral limits. While in the first chiral limit and in the non-chiral case these symmetries have been found in [PRX 10, 031034] for the $8$ lowest bands, we here prove that they are valid for projection into any $8 n_\text{max}$ particle-hole symmetric TBG bands, with $n_\text{max}>1$ being the practical case for small twist angles $<1^\circ$. Furthermore, in the first or second chiral-nonflat limit without flat bands, an exact U(4) symmetry still remains. We also elucidate the link between the U(4) symmetry presented here and the similar but different U(4) of [PRL 122, 246401]. Furthermore, we show that our projected Hamiltonian can be viewed as the normal-ordered Coulomb interaction plus a Hartree-Fock term from passive bands, and exhibits a many-body particle-hole symmetry which renders the physics symmetric around charge neutrality. We also provide an efficient parameterization of the interacting Hamiltonian. The existence of two chiral limits, with an enlarged symmetry suggests a possible duality of the model yet undiscovered.
description: 12+32 pages, 3+1 figures. Published version
Synthesis of Terminal Vinylphosphonates via Dbu-Promoted Tandem Phospha-Michael/Elimination Reactions
Creators: name: Hui-Xuan Chen
name: Huang, Lin-Jie
name: Liu, Jin-Biao
name: Weng, Jiang
name: Lu, Gui
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: Science Policy
subject: Biological Sciences
subject: Earth and Environmental Sciences
subject: Molecular Biology
subject: Cell Biology
subject: Microbiology
subject: FOS: Biological sciences
subject: Biochemistry

description: The terminal vinylphosphonates were prepared from various β-nitroolefins and phosphites through tandem phospha-Michael/elimination reactions. In the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), a variety of new vinylphosphonates were obtained in moderate to high yields under simple and mild condition. These new compounds were characterized by HRMS, 1H, 13C and 31P NMR techniques.graphical abstract
Synthesis, Characterization And Reactivity Of 2,2’-Oxydiethanol Complexes Of Silicon
Creators: name: Gurjaspreet Singh
name: Sheenam Girdhar
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Cell Biology

description: A series of 2,5,8-trioxasilocanes – 1,1-diethoxy-2,5,8-trioxasilocane (5), 1,1-diisothiocyanto-2,5,8-trioxasilocane (6), 1,1-diisocyanto-2,5,8-trioxasilocane (7), 1-phenyl-1-chloro-2,5,8-trioxasilocane (9) and 1-phenyl-1-isothiocyanato-2,5,8-trioxasilocane (10) – are prepared starting from diethylene glycol, which acts as a dianionic tridentate ligand. The composition and structures of all novel compounds are established by IR spectroscopy, 1H and 13C NMR spectroscopy, elemental analysis and thermogravimetric analysis. The structural data obtained from geometry optimizations by DFT calculations correlate with the experimental results.
Convenient Synthesis of Novel N-Acylsulfonamides Containing Phosphonate Moiety
Creators: name: Wahida Boufas
name: Hadjer Cheloufi
name: Bouchareb, Fouzia
name: Berredjem, Malika
name: Aouf, Nour-Eddine
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Science Policy
subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Cell Biology
subject: Microbiology
subject: FOS: Biological sciences

description: GRAPHICAL ABSTRACT
Overcharging a Reissner-Nordström Taub-NUT regular black hole
Creators: name: Feng, Wen-Bin
name: Yang, Si-Jiang
name: Tan, Qin
name: Yang, Jie
name: Liu, Yu-Xiao
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The destruction of a regular black hole event horizon might provide us the possibility to access regions inside black hole event horizon. This paper investigates the possibility of overcharging a charged Taub-NUT regular black hole via the scattering of a charged field and the absorption of a charged particle. For the charged scalar field scattering, both the near-extremal and extremal charged Taub-NUT regular black holes cannot be overcharged. For the test charged particle absorption, the result shows that the event horizon of the extremal charged Taub-NUT regular black hole still exists while the event horizon of the near-extremal one can be destroyed. However, if the charge and energy cross the event horizon in a continuous path, the near-extremal charged Taub-NUT regular black hole might not be overcharged.
description: 22 pages, 3 figures