cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum Walk in Momentum Space with a Bose-Einstein Condensate
Creators: name: Dadras, Siamak
name: Gresch, Alexander
name: Groiseau, Caspar
name: Wimberger, Sandro
name: Summy, Gil S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present a discrete-time, one-dimensional quantum walk based on the entanglement between the momentum of ultracold rubidium atoms (the walk space) and two internal atomic states (the "coin" degree of freedom). Our scheme is highly flexible and can provide a platform for a wide range of applications such as quantum search algorithms, the observation of topological phases, and the realization of walks with higher dimensionality. Along with the investigation of the quantum-to-classical transition, we demonstrate the distinctive features of a quantum walk and contrast them to those of its classical counterpart. Also, by manipulating either the walk or coin operator, we show how the walk dynamics can be steered or even reversed.
description: 5 pages, 3 figures
Hamiltonian Approach to $2D$ Supergravity
Creators: name: Gamboa, J.
name: Ramirez, C.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study $2D$ supergravity in a covariant and gauge independent way. The theory is obtained from $2D$ bosonic gravity following the square root method and the diffeomorphism superalgebra is explicitly computed. We argue that our approach could be a procedure for introducing nontrivial physics in quantum $2D$ (super)gravity.
description: 11pp, Plain tex, IPNO-TH 92/79
Anomaly Cancellation in Six Dimensions
Creators: name: Erler, Jens
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I show that anomaly cancellation conditions are sufficient to determine the two most important topological numbers relevant for Calabi-Yau compactification to six dimensions. This reflects the fact that K3 is the only non-trivial CY manifold in two complex dimensions. I explicitly construct the Green-Schwarz counterterms and derive sum rules for charges of additional enhanced U(1) factors and compare the results with all possible Abelian orbifold constructions of K3. This includes asymmetric orbifolds as well, showing that it is possible to regain a geometrical interpretation for this class of models. Finally, I discuss some models with a broken $E_7$ gauge group which will be useful for more phenomenological applications.
description: 19 pages, UPR-0567T
On closure operators and reflections in Goursat categories
Creators: name: Borceux, Francis
name: Gran, Marino
name: Mantovani, Sandra
Publisher: name: arXiv
Year: 2007
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18C05, 54B30, 08B05

description: By defining a closure operator on effective equivalence relations in a regular category $C$, it is possible to establish a bijective correspondence between these closure operators and the regular epireflective subcategories $L$ of $C$. When $C$ is an exact Goursat category this correspondence restricts to a bijection between the Birkhoff closure operators on effective equivalence relations and the Birkhoff subcategories of $C$. In this case it is possible to provide an explicit description of the closure, and to characterise the congruence distributive Goursat categories.
description: 14 pages. Accepted for publication in "Rendiconti dell'Istituto Matematico di Trieste"
title: Identification of Random Resource Shares in Collective Households Without Preference Similarity Restrictions
Creators: name: Dunbar, Geoffrey
name: Lewbel, Arthur
name: Pendakur, Krishna
Publisher: name: Bank of Canada
Year: 2017

description: Resource shares, defined as the fraction of total household spending going to each person in a household, are important for assessing individual material well-being, inequality and poverty. They are difficult to identify because consumption is measured typically at the household level, and many goods are jointly consumed, so that individual-level consumption in multi-person households is not directly observed. We consider random resource shares, which vary across observationally identical households. We provide theorems that identify the distribution of random resource shares across households, including children’s shares. We also provide a new method of identifying the level of fixed or random resource shares that does not require previously needed preference similarity restrictions or marriage market assumptions. Our results can be applied to data with or without price variation. We apply our results to households in Malawi, estimating the distributions of child and female poverty across households.
description: La part de ressources, au sens de fraction de la dépense totale d’un ménage qui se rapporte à chaque membre du foyer, joue un rôle important dans l’évaluation du bien-être matériel des personnes, de leur inégalité de situation et de leur niveau de pauvreté. Il est difficile d’estimer cette part, car la consommation est généralement mesurée au niveau du ménage. De plus, comme les personnes d’un même foyer consomment ensemble bon nombre de biens, la consommation de chacun dans des ménages de plus d’un individu n’est pas directement observable. Nous examinons des parts de ressources qui varient aléatoirement dans des ménages au profil identique. Nous présentons des théorèmes qui permettent de dégager la répartition des parts aléatoires de ressources parmi les ménages recensés, notamment celles des enfants. Nous exposons également une nouvelle méthode de calcul des parts fixes ou aléatoires de ressources, qui ne demande pas comme auparavant l’imposition de restrictions sur la similarité des préférences ni la formulation d’hypothèses sur le marché matrimonial. Nos résultats sont applicables aux données assorties ou non d’une variation de prix. Nous les appliquons à des ménages du Malawi pour évaluer la répartition des taux de pauvreté des femmes et des enfants.
The Electroweak Chiral Lagrangian and New Precision Measurements
Creators: name: Appelquist, T.
name: Wu, G.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A revised and complete list of the electroweak chiral lagrangian operators up to dimension-four is provided. The connection of these operators to the $S$, $T$ and $U$ parameters and the parameters describing the triple gauge boson vertices $WWγ$ and $WWZ$ is made, and the size of these parameters from new heavy physics is estimated using a one flavor-doublet model of heavy fermions. The coefficients of the chiral lagrangian operators are also computed in this model.
description: 21 pages, LaTex, 2 figures (not included), YCTP-P7-93
Detecting Life-bearing Extra-solar Planets with Space Telescopes
Creators: name: Beckwith, Steven V. W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: One of the promising methods to search for life on extra-solar planets (exoplanets) is to detect life's signatures in their atmospheres. Spectra of exoplanet atmospheres at the modest resolution needed to search for oxygen, carbon dioxide, water, and methane will demand large collecting areas and large diameters to capture and isolate the light from planets in the habitable zones around the stars. For telescopes using coronagraphs to isolate the light from the planet, each doubling of telescope diameter will increase the available sample of stars by an order of magnitude, indicating a high scientific return if the technical difficulties of constructing very large space telescopes can be overcome. For telescopes detecting atmospheric signatures of transiting planets, the sample size increases only linearly with diameter, and the available samples are probably too small to guarantee detection of life-bearing planets. Using samples of nearby stars suitable for exoplanet searches, this paper shows that the demands of searching for life with either technique will require large telescopes, with diameters of order 10m or larger in space.
description: 15 pages, 6 figures, submitted to Ap. J
Glassy dynamics due to a trajectory phase transition in dissipative Rydberg gases
Creators: name: Pérez-Espigares, Carlos
name: Lesanovsky, Igor
name: Garrahan, Juan P.
name: Gutiérrez, Ricardo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The physics of highly excited Rydberg atoms is governed by blockade or exclusion interactions that hinder the excitation of atoms in the proximity of a previously excited one. This leads to cooperative effects and a relaxation dynamics displaying space-time heterogeneity similar to what is observed in the relaxation of glass-forming systems. Here we establish theoretically the existence of a glassy dynamical regime in an open Rydberg gas, associated with phase coexistence at a first-order transition in dynamical large deviation functions. This transition occurs between an active phase of low density in which dynamical processes take place on short timescales, and an inactive phase in which excited atoms are dense and the dynamics is highly arrested. We perform a numerically exact study and develop a mean-field approach that allows to understand the mechanics of this phase transition. We show that radiative decay --- which becomes experimentally relevant for long times --- moves the system away from dynamical phase coexistence. Nevertheless, the dynamical phase transition persists and causes strong fluctuations in the observed dynamics.
description: 7 pages, 4 figures, published in Physical Review A as a Rapid Communication, and selected as Editors' Suggestion
Pre-Big-Bang in String Cosmology
Creators: name: Gasperini, M.
name: Veneziano, G.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The duality-type symmetries of string cosmology naturally lead to a pre-big-bang phase of accelerated evolution as dual counterpart of the decelerated expansion of standard cosmology. We discuss several properties of this scenario, including the possibility that tracks of the pre-big-bang may be found either in the spectrum of relic gravitons or in the distortion they induce on the cosmic microwave background.
description: 36 pages (plus 1 table and 3 figures ava. upon request), CERN-TH.6572
title: Measuring Limits of Arbitrage in Fixed-Income Markets
Creators: name: Fontaine, Jean-Sébastien
name: Nolin, Guillaume
Publisher: name: Bank of Canada
Year: 2017

description: We use relative value to measure limits to arbitrage in fixed-income markets. Relative value captures apparent deviations from no-arbitrage relationships. It is simple, intuitive and can be computed model-free for any bond. A pseudo-trading strategy based on relative value generates higher returns than one based on the well-known noise measure. The relative value is therefore a better proxy for limits to arbitrage. We construct relative value indices for the US, UK, Japan, Germany, Italy, France, Switzerland and Canada. Limits to arbitrage increase with the scarcity of capital: we find that each index is correlated with local volatility and funding costs. Limits to arbitrage also exhibit strong commonality across countries, consistent with the international mobility of capital. The relative value indices are updated regularly and available publicly.
description: Nous utilisons la valeur relative pour mesurer les limites à l’arbitrage sur titres à revenu fixe. La valeur relative rend compte des écarts apparents par rapport aux relations de nonarbitrage. Il s’agit d’une valeur simple, intuitive et calculable sans le recours à un modèle, quelle que soit l’obligation. Une stratégie de pseudo-négociation se fondant sur la valeur relative génère des rendements plus élevés que celle qui s’appuie sur la mesure bien connue du bruit statistique. La valeur relative est donc un meilleur indicateur des limites à l’arbitrage. Nous élaborons des indices de valeur relative pour les États-Unis, le Royaume-Uni, le Japon, l’Allemagne, l’Italie, la France, la Suisse et le Canada. Les limites à l’arbitrage augmentent avec la rareté du capital dans chacun des pays. Elles présentent aussi de fortes similitudes entre les pays, ce qui cadre avec la mobilité des capitaux dans le monde. Les indices de valeur relative sont mis à jour régulièrement et rendus publics.
Statistical physics in deformed spaces with minimal length
Creators: name: Fityo, Taras
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We considered the thermodynamics in spaces with deformed commutation relation leading to existence of the minimal length. We developed a classical method of the partition function evaluation. We calculated the partition function and heat capacity for ideal gas and harmonic oscillators using this method. The obtained results are in good agreement with the exact quantum ones. We also showed that the minimal length introduction reduces degrees of freedom of an arbitrary system in the high temperature limit significantly.
description: 16 pages, 2 figures; several mistakes are corrected
Encouraging authors to use and cite data in public repositories; A publisher perspective
Creators: name: Hunter, Christopher
name: Molcrette, Bastien
name: Fan, Yannan
name: Tuli, Mary Ann
Publisher: name: F1000 Research Limited
Year: 2025

description: Encouraging authors to use and cite data in public repositories; a publisher perspective.

Chris Hunter1, Bastien Molcrette1, Yannan Fan1, Mary Ann Tuli1

1GigaScience Press

GigaScience Press publishes two journals; GigaScience and GigaByte, both have extremely high standards for transparency and reproducibility. In order to maintain these standards we have a team of data curators (biocurators) whose job is to ensure the manuscripts' are as transparent and reproducible as possible prior to publication.

Whilst we do have GigaDB, our own repository to host data associated with GigaScience Press articles, we try to use that only for data that do not have a natural home in a suitable stable public repository such as the INSDC. GigaDB biocurators act as an interpretation layer between the often-verbose standards of FAIR data, and time-pressured authors, who require succinct and pertinent guidance specific to their

manuscript. We accomplish this by scanning the manuscript prior to peer-review and

instructing the submitting author(s) how to make their data available either privately whilst under peer-review, or directly open. This ensures reviewers can spend their time reviewing the article rather than hunting the data. Collecting the data at this stage ensures that if the manuscript passes peer-review we can proceed straight away with the publication process.

Here we present a summary of the variety of different repositories that our biocurators recommend to authors, and how we ensure those data are suitably cited and linked from the journal articles and, where appropriate, from GigaDB datasets.
Creativity, Media Law, and Artificial Intelligence
Creators: name: Mukhtar, Mohamed
Publisher: name: American University of Bahrain
Year: 2025
Subjects: classificationCode: 4602
subject: Artificial intelligence

description: The intersection of artificial intelligence (AI) and intellectual property (IP) law presentsunprecedented challenges as AI increasingly generates original content across various fields. Thispaper explores the transformative effects of AI on traditional IP frameworks, which historicallyemphasized human creativity and ownership rights. With AI systems now capable of producingcontent that mirrors human ingenuity, questions about authorship, originality, and fair use haveintensified. Notably, existing IP laws are strained to address whether AI-generated content can becopyrighted and, if so, who should hold these rights—the AI developer, user, or machine itself.Significant legal cases, such as Andy Warhol Foundation v. Goldsmith and Authors Guildv. Google, Inc., illustrate the complexities around fair use and transformative use in AI-generatedworks, with courts grappling to balance creators' rights against technological advancements.Additionally, ethical concerns regarding AI’s reliance on copyrighted data for training, as seen inGetty Images v. Stability AI, highlight the tension between innovation and IP protections, raisingquestions on transparency, accountability, and the rights of original creators. These issues arefurther compounded by global inconsistencies in IP laws, urging international cooperation toharmonize IP regulations in the context of AI.The paper also examines cultural perspectives, particularly within Islamic contexts, wherecommunal knowledge-sharing values challenge Western IP norms, proposing an approach thatbalances individual ownership with public access. Looking forward, the paper calls for adaptableIP frameworks that address AI's unique characteristics while respecting ethical considerations andsocietal values. As technology progresses, a collaborative, balanced approach to IP is essential tosupport innovation, uphold creator rights, and align with the global digital landscape.
Simultaneous Edit and Imputation for Household Data with Structural Zeros
Creators: name: Akande, Olanrewaju
name: Barrientos, Andrés
name: Reiter, Jerome P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Multivariate categorical data nested within households often include reported values that fail edit constraints---for example, a participating household reports a child's age as older than his biological parent's age---as well as missing values. Generally, agencies prefer datasets to be free from erroneous or missing values before analyzing them or disseminating them to secondary data users. We present a model-based engine for editing and imputation of household data based on a Bayesian hierarchical model that includes (i) a nested data Dirichlet process mixture of products of multinomial distributions as the model for the true latent values of the data, truncated to allow only households that satisfy all edit constraints, (ii) a model for the location of errors, and (iii) a reporting model for the observed responses in error. The approach propagates uncertainty due to unknown locations of errors and missing values, generates plausible datasets that satisfy all edit constraints, and can preserve multivariate relationships within and across individuals in the same household. We illustrate the approach using data from the 2012 American Community Survey.
title: The Mode is the Message: Using Predata as Exclusion Restrictions to Evaluate Survey Design
Creators: name: Chen, Heng
name: Dunbar, Geoffrey
name: Shen, Q. Rallye
Publisher: name: Bank of Canada
Year: 2017

description: Changes in survey mode (e.g., online, offline) may influence the values of survey responses, and may be particularly problematic when comparing repeated cross-sectional surveys. This paper identifies mode effects by correcting for both unit non-response and sampling selection using the sample profile data (predata) — the individual’s number of previous survey invitations, the number of completed past surveys, and the reward points balance. The findings show that there is statistically significant evidence of mode effects in recall and subjective questions, but not for factual ones.
description: L’utilisation de différents modes d’enquête (questionnaires en ligne et autres) peut influer sur la teneur des réponses et poser notamment problème lors de la comparaison d’enquêtes transversales répétées. Dans cette étude, nous déterminons les effets des modes d’enquête en apportant une solution aux biais de non-réponse et d’échantillonnage. Cette solution passe par l’utilisation du profil de l’échantillon (les « prédonnées »), à savoir le nombre d’invitations reçues précédemment par chaque répondant pour participer à une enquête, le nombre d’enquêtes auxquelles il a déjà répondu et les points de récompense qu’il a accumulés. D’après les résultats, nous disposons de données statistiques probantes concernant les effets qu’ont les différents modes d’enquête sur les questions de rappel et les questions subjectives, mais pas sur les questions d’ordre factuel.
title: Communicating Science
title: Guidelines for evidence-based communication for early-stage researchers and journalists
titleType: Subtitle
Creators: name: Bunevičienė, Inesa
name: Juraitė, Kristina
Publisher: name: ERUM Consortium
Year: 2021

description: The guidelines are based on research on controversial issues in the news media by the ERUM project team, a survey conducted amongst journalists and media professionals, as well as a literature review. The survey data include information about journalists’ current and former work practices, ethical standards in reporting, fact-checking procedures, disinformation, and COVID-19 challenges to journalism and media. 

The ERUM project was a European initiative which addressed the need for the development of students’ key transversal competences in terms of media literacy, evidence-based communication and resilience to dis/misinformation. ERUM aimed to strengthen the capacity of media experts vis-a-vis evidence- and research-based communication.
Intergenerational Occupational Mobility Across Six Generations in the U.S., 1850-2000
Creators: name: Ferrie, Joseph P.
name: Massey, Catherine G.
name: Rothbaum, Jonathan L.
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: Economics

description: Parallel Sessions A: Wealth and Occupational Persistence Across Time and Space
Anisotropic fixed points in Dirac and Weyl semimetals
Creators: name: Pozo, Oscar
name: Ferreiros, Yago
name: Vozmediano, María A. H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The effective low energy description of interacting Dirac and Weyl semimetals is that of massless quantum electrodynamics with several Lorentz breaking material parameters. We perform a renormalization group analysis of Coulomb interaction in anisotropic Dirac and Weyl semimetals and show that the anisotropy persists in the material systems at the infrared fixed point. In addition, a tilt of the fermion cones breaking inversion symmetry induces a magnetoelectric term in the electrodynamics of the material whose magnitude runs to match that of the electronic tilt at the fixed point.
description: Version as published. Title changed
Re-Examination of Generation of Baryon and Lepton Number Asymmetries by Heavy Particle Decay
Creators: name: Liu, Jiang
name: Segre, Gino
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is shown that wave function renormalization can introduce an important contribution to the generation of baryon and lepton number asymmetries by heavy particle decay. These terms, omitted in previous analyses, are of the same order of magnitude as the standard terms. A complete cancellation of leading terms can result in some interesting cases.
description: 12 pages, 2 Feynman graphs (not included), UPR-0559
LMPIT-inspired Tests for Detecting a Cyclostationary Signal in Noise with Spatio-Temporal Structure
Creators: name: Pries, Aaron
name: Ramírez, David
name: Schreier, Peter J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In spectrum sensing for cognitive radio, the presence of a primary user can be detected by making use of the cyclostationarity property of digital communication signals. For the general scenario of a cyclostationary signal in temporally colored and spatially correlated noise, it has previously been shown that an asymptotic generalized likelihood ratio test (GLRT) and locally most powerful invariant test (LMPIT) exist. In this paper, we derive detectors for the presence of a cyclostationary signal in various scenarios with structured noise. In particular, we consider noise that is temporally white and/or spatially uncorrelated. Detectors that make use of this additional information about the noise process have enhanced performance. We have previously derived GLRTs for these specific scenarios; here, we examine the existence of LMPITs. We show that these exist only for detecting the presence of a cyclostationary signal in spatially uncorrelated noise. For white noise, an LMPIT does not exist. Instead, we propose tests that approximate the LMPIT, and they are shown to perform well in simulations. Finally, if the noise structure is not known in advance, we also present hypothesis tests using our framework.
Cahier de Prélude à la guerre, 2e version (LAG 61.4)
Creators: name: Lagarce, Jean-Luc
name: Lagarce, Jean-Luc
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: Jean-Luc Lagarce
Prélude à la guerre
Théâtre
Inédit
Carnet de travail

description: Texte manuscrit de la pièce inédite Prélude à la guerre, suivi de notes pour un projet intitulé Une Maison de repos, de notes pour Noce, de notes concernant des réunions, des comptes et quelques notes personnelles. Le titre du manuscrit ne figure pas sur le bloc-notes auquel il manque probablement la première page. Le bloc-notes est endommagé, la couverture et 4 feuillets se sont détachés. Une lettre dactylographiée du Lycée d'Etat Jules Haag à Besançon adressée aux maîtres d'internat est insérée dans le carnet.
Le document est consultable avec sa transcription diplomatique sur le portail TXM à l'adresse : http://fanum-txm.univ-fcomte.fr/txm/?command=documentation&path=/CORPUS-LAGARCE
description: Bibliographic citation: Cote (IMEC) : 364LAG/61/4
Cote (ELLIADD) : JLL1041
title: Heimatbuch Dübendorf 1960
title: Dübendorfer Heimatbuch
titleType: AlternativeTitle
Creators: name: Corrodi, P.
name: Angele, Rudolf
name: Jaboulin, Reynold
name: Brüngger, Robert
name: Heusser, W.
name: Frei, Hans
name: Suter, H.
name: Gut, R.
name: Keller, Alfred
name: Fenner, Hans
name: Meyer, Emanuel
Publisher: name: Verkehrs- und Verschönerungsverein
Year: 1960
Subjects: subject: 914 Geografie Europas und Reisen in Europa
subject: 949 Geschichte anderer Teile Europas
subject: Dübendorf
subject: Heimatkunde

description: Enthält eine Chronik der Gemeinde Dübendorf vom Oktober 1959 bis September 1960
On surrogate dimension reduction for measurement error regression: An invariance law
Creators: name: Li, Bing
name: Yin, Xiangrong
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G08, 62H12 (Primary)

description: We consider a general nonlinear regression problem where the predictors contain measurement error. It has been recently discovered that several well-known dimension reduction methods, such as OLS, SIR and pHd, can be performed on the surrogate regression problem to produce consistent estimates for the original regression problem involving the unobserved true predictor. In this paper we establish a general invariance law between the surrogate and the original dimension reduction spaces, which implies that, at least at the population level, the two dimension reduction problems are in fact equivalent. Consequently we can apply all existing dimension reduction methods to measurement error regression problems. The equivalence holds exactly for multivariate normal predictors, and approximately for arbitrary predictors. We also characterize the rate of convergence for the surrogate dimension reduction estimators. Finally, we apply several dimension reduction methods to real and simulated data sets involving measurement error to compare their performances.
description: Published in at http://dx.doi.org/10.1214/009053607000000172 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Additional file 2 of Putative genes in alkaloid biosynthesis identified in Dendrobium officinale by correlating the contents of major bioactive metabolites with genes expression between Protocorm-like bodies and leaves
Creators: name: Wang, Zhaojian
name: Jiang, Weimin
name: Liu, Yingying
name: Meng, Xiaoxi
name: Su, Xinglong
name: Cao, Mengyang
name: Wu, Liping
name: Yu, Nianjun
name: Xing, Shihai
name: Peng, Daiyin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2 Putative biosynthetic pathway of the alkaloids in D. officinale.
Origin of spontaneous violation of the Lorentz symmetry: Vortices in the cosmos
Creators: name: Ahluwalia, D. V.
name: Goldman, T.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: By carefully studying the (1,0)+(0,1) representation space for massive particles we point to the existence of certain inherent tachyonic dispersion relations: E^2= p^2-m^2. We put forward an interpretation that exploits these ``negative mass squared'' solutions; rotational invariance is spontaneously broken. Relevance of these results to the vortices in the cosmos is pointed out. NOTE: Just as "negative energy solutions'' of Dirac equation are re-interpreted as antiparticles, similarly the possibility exists for re-interpreting the tachyonic dispersion relations of all (j,0)+(0,j) representation spaces via spontaneous Lorentz symmetry breaking. In Mod. Phys. Lett. A8:2623-2630,1993 we exhibited this explicitly for the j=1 representation space. The interest in this old subject has grown markedly in recent years as is evident from numerous theoretical and phenomenological works on the subject. With this observation, we make this replacement of our paper fourteen years after its initial publication. The Abstract and main text remain unaltered. The title is changed to reflect the underlying physics more closely.
description: This is an exact copy of the published paper with an extended bibliography and a revised title. A brief note is added to point out a systematic way to spontaneously break Lorentz symmetry
title: Global Trade Flows: Revisiting the Exchange Rate Elasticities
Creators: name: Bussière, Matthieu
name: Gaulier, Guillaume
name: Steingress, Walter
Publisher: name: Bank of Canada
Year: 2017

description: This paper contributes to the debate on the magnitude of exchange rate elasticities by providing a set of price and quantity elasticities for 51 advanced and emerging-market economies. Specifically, for each of these countries we report the elasticity of trade prices and trade quantities on both the export and on the import sides, as well as the reaction of the trade balance. To that end, we use a large unified database of highly disaggregated bilateral trade flows, covering 5,000 products and more than 160 trading partners. We present a range of estimates using not only standard regression techniques but also generated regressors that aim to address key omitted variable biases, particularly relating to unobserved marginal costs and competitor prices in the importing market. Our results show that quantity elasticities are significantly below one, pass-through is incomplete and export prices react significantly to exchange rate changes. Despite low quantity elasticities, the trade balance reacts positively to a depreciation in all countries because export and import prices adjust. Overall, our findings suggest that changes in the exchange rate can play an important role in addressing global trade imbalances.
description: Cet article contribue au débat sur l’ordre de grandeur des élasticités commerce en fournissant les élasticités prix et quantités de 51 pays avancés et émergents. Plus particulièrement, nous présentons pour chacun de ces pays l’élasticité des prix et des quantités au taux de change pour les exportations et pour les importations, ainsi que la réaction de la balance commerciale. À cette fin, nous utilisons des données très désagrégées de commerce bilatéral couvrant 5 000 produits différents et plus de 160 pays partenaires. Nous présentons une gamme de résultats obtenus à la fois au moyen de régressions classiques et de régresseurs générés qui prennent en compte l’effet de variables non observées, notamment les coûts marginaux et le prix des compétiteurs dans le pays importateur. Ces résultats montrent que les élasticités quantités sont significativement inférieures à un, que la transmission des variations du taux de change est incomplète et que les prix d’exports réagissent significativement aux mouvements du taux de change. Malgré des élasticités quantités faibles, la réaction de la balance commerciale à une dépréciation est positive pour tous les pays parce que les prix d’imports et d’exports s’ajustent. Dans l’ensemble, les résultats donnent à penser que les taux de change peuvent jouer un rôle important dans la correction des balances commerciales.
The quadrupole mechanism of hole spin relaxation
Creators: name: Serebrennikov, Yuri A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: For spin-3/2 holes the anisotropic part of the instantaneous Luttinger Hamiltonian can be represented as an effective quadrupole coupling. We investigate the hole spin relaxation process induced by nonadiabatic fluctuations of this interaction. The obtained analytical solution of the stochastic Liouville equation describes the polarization decay of spin-3/2 holes in all regimes of momentum scattering: from collision-dominated to ballistic. Our results create the basis for quantitative interpretation of recent experiments and elucidate the striking difference between the hole spin relaxation process in bulk crystals and 2D semiconductor nanostructures.
description: This version of the article is considerably extended
Anomalous transport in biased ac-driven Josephson junctions: Negative conductances
Creators: name: Kostur, M.
name: Machura, L.
name: Talkner, P.
name: Hanggi, P.
name: Luczka, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate classical anomalous electrical transport in a driven, resistively and capacitively shunted Josephson junction device. Novel transport phenomena are identified in chaotic regimes when the junction is subjected to both, a time periodic (ac) and a constant, biasing (dc) current. The dependence of the voltage across the junction on the dc-current exhibits a rich diversity of anomalous transport characteristics: In particular, depending on the chosen parameter regime we can identify so termed absolute negative conductance around zero dc-bias, the occurrence of negative differential conductance and, after crossing a zero conductance, the emergence of a negative nonlinear conductance in the non-equilibrium response regime remote from zero dc-bias.
description: 7 pages, 5 figures
Dynamical Quantum Phase Transitions: A Geometric Picture
Creators: name: Lang, Johannes
name: Frank, Bernhard
name: Halimeh, Jad C.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Loschmidt echo (LE) is a purely quantum-mechanical quantity whose determination for large quantum many-body systems requires an exceptionally precise knowledge of all eigenstates and eigenenergies. One might therefore be tempted to dismiss the applicability of any approximations to the underlying time evolution as hopeless. However, using the fully connected transverse-field Ising model (FC-TFIM) as an example, we show that this indeed is not the case, and that a simple semiclassical approximation to systems well described by mean-field theory (MFT) is in fact in good quantitative agreement with the exact quantum-mechanical calculation. Beyond the potential to capture the entire dynamical phase diagram of these models, the method presented here also allows for an intuitive geometric interpretation of the fidelity return rate at any temperature, thereby connecting the order parameter dynamics and the Loschmidt echo in a common framework. Videos of the post-quench dynamics provided in the supplemental material visualize this new point of view.
description: Accepted version. 7 pages with 4 Figures in main file. 3 pages including 2 Figures of supplemental material. 3 videos linked in the references of the main file
A Bargmann-Wightman-Wigner Type Quantum Field Theory
Creators: name: Ahluwalia, D. V.
name: Johnson, M. B.
name: Goldman, T.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This version corrects an inportant typographical error in Eq. 17. COMMENTS, FOR THE RECORD: A referees reoprt from Phys. Rev. Lett. read in part ``The first named author has appreciated my exceptionally long report. He has read and well assimilated the literature I suggested. Congratulations! This very new version of the manuscript has now three authors and carries a very well chosen title. Indeed Bargmann, Wightman and Wigner had studied, this subject forty years ago, in an unpublished book (several chapters were distributed as preprints). The authors explain well the scope of their paper. They have made a thorough construction of a field theory of a non usual Wigner type; that is completely new and all references are relevant. {\it This paper should be published.}" Despite the fact that no other report was received, the editors of Phys. Rev. Lett. rejected this paper. D.V.A.
description: 13 pages, RevTex, LA-UR-92-3726-REV
title: Government Spending Multipliers Under the Zero Lower Bound: Evidence from Japan
Creators: name: Miyamoto, Wataru
name: Nguyen, Thuy Lan
name: Sergeyev, Dmitriy
Publisher: name: Bank of Canada
Year: 2017

description: Using a rich data set on government spending forecasts in Japan, we provide new evidence on the effects of unexpected changes in government spending when the nominal interest rate is near the zero lower bound (ZLB). The on-impact output multiplier is 1.5 in the ZLB period, and 0.6 outside of it. We estimate that government spending shocks increase both private consumption and investment during the ZLB period but crowd them out in the normal period. There is evidence that expected inflation increases by more in the ZLB period than in the normal period.
description: À l’aide de données détaillées sur les prévisions de dépenses publiques au Japon, nous présentons des éléments nouveaux sur les effets des variations non anticipées des dépenses publiques lorsque le taux d’intérêt nominal avoisine la valeur plancher. Lorsque les taux sont à zéro, le multiplicateur de la production à l’impact est de 1,5 alors qu’il est de 0,6 lorsque les taux n’avoisinent pas la valeur plancher. Nous estimons que les chocs touchant les dépenses publiques font augmenter la consommation et l’investissement privés quand les taux sont à la valeur plancher, mais qu’ils ont en temps normal un effet d’éviction sur ces deux variables. Nos données montrent que quand les taux sont à la valeur plancher, l’inflation anticipée progresse plus fortement qu’en temps normal.
PROVINCE OF BRITISH COLUMBIA DEPARTMENT OF LANDS AND FORESTS HON. E. T. KENNEY, Minister. G. P. MELROSE, Deputy Minister of Lands. Report of the Deputy Minister of Lands containing the Reports of the Lands Branch, Surveys and Mapping Service, and Water Rights Branch together with the Dyking and Drainage Commissioner, Southern Okanagan Lands Project, University Endowment Lands, and the Coal, Petroleum, and Natural Gas Controller Year ended December 31st 1949
Creators: name: British Columbia. Legislative Assembly
Publisher: name: Victoria, BC : Government Printer
Year: 2017

Abstract
Discretization of the Superparticle Path Integral
Creators: name: Grundberg, J.
name: Lindstrom, U.
name: Nordstrom, H.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Requiring that the path integral has the global symmetries of the classical action and obeys the natural composition property of path integrals, and also that the discretized action has the correct naive continuum limit, we find a viable discretization of the (D=3,N=2) superparticle action.
description: 10 pages
Additional file 3 of Putative genes in alkaloid biosynthesis identified in Dendrobium officinale by correlating the contents of major bioactive metabolites with genes expression between Protocorm-like bodies and leaves
Creators: name: Wang, Zhaojian
name: Jiang, Weimin
name: Liu, Yingying
name: Meng, Xiaoxi
name: Su, Xinglong
name: Cao, Mengyang
name: Wu, Liping
name: Yu, Nianjun
name: Xing, Shihai
name: Peng, Daiyin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3 Putative biosynthetic pathway of the flavonoids in D. officinale.
Quantum information processing using nuclear and electron magnetic resonance: review and prospects
Creators: name: Baugh, J.
name: Chamilliard, J.
name: Chandrashekar, C. M.
name: Ditty, M.
name: Hubbard, A.
name: Laflamme, R.
name: Laforest, M.
name: Maslov, D.
name: Moussa, O.
name: Negrevergne, C.
name: Silva, M.
name: Simmons, S.
name: Ryan, C. A.
name: Cory, D. G.
name: Hodges, J. S.
name: Ramanathan, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper describes recent progress using nuclear magnetic resonance (NMR) as a platform for implementing quantum information processing (QIP) tasks. The basic ideas of NMR QIP are detailed, examining the successes and limitations of liquid and solid state experiments. Finally, a future direction for implementing quantum processors is suggested,utilizing both nuclear and electron spin degrees of freedom.
description: 24 pages, 8 figures (to appear in Physics in Canada, Special Issue on Quantum Computing and Quantum Information, 2007)
title: Changes in Monetary Regimes and the Identification of Monetary Policy Shocks: Narrative Evidence from Canada
Creators: name: Champagne, Julien
name: Sekkel, Rodrigo
Publisher: name: Bank of Canada
Year: 2017

description: We use narrative evidence along with a novel database of real-time data and forecasts from the Bank of Canada's staff economic projections from 1974 to 2015 to construct a new measure of monetary policy shocks and estimate the effects of monetary policy in Canada. We show that it is crucial to take into account the break in the conduct of monetary policy caused by the announcement of inflation targeting in 1991 when estimating the effects of monetary policy. For instance, we find that a 100-basis-point increase in our new shock series leads to a 1.0 per cent decrease in real GDP and a 0.4 per cent fall in the price level, while not accounting for the break leads to a permanent decrease in real GDP and a price puzzle. Finally, we compare our results with updated narrative evidence for the U.S. and the U.K. and argue that taking into account changes in the conduct of monetary policy in these countries also yields significantly different effects of monetary policy.
description: Nous utilisons de l’information narrative ainsi qu’une nouvelle base de données en temps réel et des prévisions provenant des projections économiques établies par le personnel de la Banque du Canada de 1974 à 2015 pour construire une nouvelle mesure de chocs de politique monétaire et estimons les effets de la politique monétaire au Canada. Nous montrons qu’il est primordial de prendre en compte le changement structurel dans la conduite de la politique monétaire causé par l’annonce du ciblage de l’inflation en 1991 lorsque nous estimons les effets de la politique monétaire. Par exemple, nous constatons qu’une augmentation de 100 points de base de notre nouvelle série se traduit par une diminution de 1 % du PIB réel et de 0,4 % du niveau des prix, tandis que nous observons un recul permanent du PIB réel et une augmentation inattendue du niveau des prix si le changement structurel dans la conduite de la politique monétaire n’est pas pris en compte. Finalement, nous comparons nos résultats avec ceux des États-Unis et du Royaume-Uni et trouvons aussi que prendre en compte le changement de la conduite de la politique monétaire dans ces pays produit des effets différents en matière de politique monétaire.
Towards Exact Molecular Dynamics Simulations with Machine-Learned Force Fields
Creators: name: Chmiela, Stefan
name: Sauceda, Huziel E.
name: Müller, Klaus-Robert
name: Tkatchenko, Alexandre
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Molecular dynamics (MD) simulations employing classical force fields constitute the cornerstone of contemporary atomistic modeling in chemistry, biology, and materials science. However, the predictive power of these simulations is only as good as the underlying interatomic potential. Classical potentials often fail to faithfully capture key quantum effects in molecules and materials. Here we enable the direct construction of flexible molecular force fields from high-level ab initio calculations by incorporating spatial and temporal physical symmetries into a gradient-domain machine learning (sGDML) model in an automatic data-driven way. The developed sGDML approach faithfully reproduces global force fields at quantum-chemical CCSD(T) level of accuracy and allows converged molecular dynamics simulations with fully quantized electrons and nuclei. We present MD simulations, for flexible molecules with up to a few dozen atoms and provide insights into the dynamical behavior of these molecules. Our approach provides the key missing ingredient for achieving spectroscopic accuracy in molecular simulations.