cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spin noise spectroscopy of a single-quantum-well microcavity
Creators: name: Poltavtsev, S. V.
name: Ryzhov, I. I.
name: Glazov, M. M.
name: Kozlov, G. G.
name: Zapasskii, V. S.
name: Kavokin, A. V.
name: Lagoudakis, P. G.
name: Smirnov, D. S.
name: Ivchenko, E. L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on the first experimental observation of spin noise in a single semiconductor quantum well embedded into a microcavity. The great cavity-enhanced sensitivity to fluctuations of optical anisotropy has allowed us to measure the Kerr rotation and ellipticity noise spectra in the strong coupling regime. The spin noise spectra clearly show two resonant features: a conventional magneto-resonant component shifting towards higher frequencies with magnetic field and an unusual "nonmagnetic" component centered at zero frequency and getting suppressed with increasing magnetic field. We attribute the first of them to the Larmor precession of free electron spins, while the second one being presumably due to hyperfine electron-nuclei spin interactions.
description: 5 pages, 6 figures + supplement (4 pages, 1 figure)
title: Defining the heathen Irish and the pagan African: two similar discourses a century apart
Creators: name: Bateman, Fiona
Publisher: name: University of Galway
Year: 2008
Subjects: subject: Ireland
subject: Representation
subject: Proselytisation
subject: Africa
subject: Discourse

description: This article looks at two different missionary projects separated by space and time: British Protestant missions to Ireland in the mid-nineteenth century; and Irish Roman Catholic missions to Africa in the 1920 and 1930s. It argues that in both cases missionary discourses were strongly influenced by prevailing public attitudes towards the 'other', in the earlier case the Irish, in the later case, the Africans. Using evidence from a range of contemporary mission publications, the article highlights the similarity between British Protestant efforts to 'colonise' Ireland in religious terms and later Irish Catholic attempts to create a 'Spiritual Empire' in Africa in the context of the recently-formed Irish Free State and in contrast to the ostensibly materialistic and corrupting influences on Africa of British imperialism. Cet article se penche sur deux projets missionnaires séparés dans le temps et l'espace: les missions protestantes britanniques en Irlande au milieu du 19e siècle, et les missions catholiques irlandaises en Afrique dans les années 1920-30. Il montre que, dans les deux cas, le discours missionnaire a été influencé par la façon dont le rapport à l'«Autre,» qu'il soit irlandais dans un cas ou africain dans l'autre, était généralement conçu. Par l'analyse de nombreuses publications missionnaires, le texte révèle les similarités existant entre les efforts des protestants britanniques pour «coloniser» religieusement l'Irlande et, plus tard, les efforts des Catholiques irlandais pour créer un «Empire spirituel» en Afrique dans le contexte du nouvel Etat Libre d'Irlande et d'un désir de se distinguer des influences matérialistes et néfastes de l'impérialisme britannique en Afrique.
The minimal number of generators of a finite semigroup
Creators: name: Gray, Robert D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20M05, 20M20, 05C25

description: The rank of a finite semigroup is the smallest number of elements required to generate the semigroup. A formula is given for the rank of an arbitrary (non necessarily regular) Rees matrix semigroup over a group. The formula is expressed in terms of the dimensions of the structure matrix, and the relative rank of a certain subset of the structure group obtained from subgroups generated by entries in the structure matrix, which is assumed to be in Graham normal form. This formula is then applied to answer questions about minimal generating sets of certain natural families of transformation semigroups. In particular, the problem of determining the maximum rank of a subsemigroup of the full transformation monoid (and of the symmetric inverse semigroup) is considered.
description: 14 pages
A UV-to-MIR monitoring of DR Tau: exploring how water vapor in the planet formation region of the disk is affected by stellar accretion variability
Creators: name: Banzatti, Andrea
name: Meyer, Michael R.
name: Manara, Carlo F.
name: Pontoppidan, Klaus M.
name: Testi, Leonardo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences
subject: 85-05

description: Young stars are known to show variability due to non-steady mass accretion rate from their circumstellar disks. Accretion flares can produce strong energetic irradiation and heating that may affect the disk in the planet formation region, close to the central star. During an extreme accretion outburst in the young star EX Lupi, the prototype of EXor variables, remarkable changes in molecular gas emission from $\sim1$ AU in the disk have recently been observed (Banzatti et al. 2012). Here, we focus on water vapor and explore how it is affected by variable accretion luminosity in T Tauri stars. We monitored a young highly variable solar-mass star, DR Tau, using simultaneously two high/medium-resolution ESO-VLT spectrographs: VISIR at 12.4 $μ$m to observe water lines from the disk, and X-shooter covering from 0.3 to 2.5 $μ$m to constrain the stellar accretion. Three epochs spanning timescales from several days to several weeks were obtained. Accretion luminosity was estimated to change within a factor $\sim2$, and no change in water emission was detected at a significant level. In comparison to EX Lupi and EXor outbursts, DR Tau suggests that the less long-lived and weaker variability phenomena typical of T Tauri stars may leave water at planet-forming radii in the disk mostly unaffected. We propose that these systems may provide evidence for two processes that act over different timescales: UV photochemistry in the disk atmosphere (faster) and heating of the disk deeper layers (slower).
description: 8 pages, 7 figures, accepted for publication in The Astrophysical Journal
Rhythm-controllable Attention with High Robustness for Long Sentence Speech Synthesis
Creators: name: Ke, Dengfeng
name: Deng, Yayue
name: Jia, Yukang
name: Xue, Jinlong
name: Luo, Qi
name: Li, Ya
name: Sun, Jianqing
name: Liang, Jiaen
name: Lin, Binghuai
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Regressive Text-to-Speech (TTS) system utilizes attention mechanism to generate alignment between text and acoustic feature sequence. Alignment determines synthesis robustness (e.g, the occurence of skipping, repeating, and collapse) and rhythm via duration control. However, current attention algorithms used in speech synthesis cannot control rhythm using external duration information to generate natural speech while ensuring robustness. In this study, we propose Rhythm-controllable Attention (RC-Attention) based on Tracotron2, which improves robustness and naturalness simultaneously. Proposed attention adopts a trainable scalar learned from four kinds of information to achieve rhythm control, which makes rhythm control more robust and natural, even when synthesized sentences are extremely longer than training corpus. We use word errors counting and AB preference test to measure robustness of proposed method and naturalness of synthesized speech, respectively. Results shows that RC-Attention has the lowest word error rate of nearly 0.6%, compared with 11.8% for baseline system. Moreover, nearly 60% subjects prefer to the speech synthesized with RC-Attention to that with Forward Attention, because the former has more natural rhythm.
description: 5 pages, 3 figures, Published in: 2022 13th International Symposium on Chinese Spoken Language Processing (ISCSLP)
Viscoelastic Tidal Dissipation in Giant Planets and Formation of Hot Jupiters Through High-Eccentricity Migration
Creators: name: Storch, Natalia I
name: Lai, Dong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We study the possibility of tidal dissipation in the solid cores of giant planets and its implication for the formation of hot Jupiters through high-eccentricity migration. We present a general framework by which the tidal evolution of planetary systems can be computed for any form of tidal dissipation, characterized by the imaginary part of the complex tidal Love number, ${\rm Im}[{\tilde k}_2(ω)]$, as a function of the forcing frequency $ω$. Using the simplest viscoelastic dissipation model (the Maxwell model) for the rocky core and including the effect of a nondissipative fluid envelope, we show that with reasonable (but uncertain) physical parameters for the core (size, viscosity and shear modulus), tidal dissipation in the core can accommodate the tidal-Q constraint of the Solar system gas giants and at the same time allows exoplanetary hot Jupiters to form via tidal circularization in the high-e migration scenario. By contrast, the often-used weak friction theory of equilibrium tide would lead to a discrepancy between the Solar system constraint and the amount of dissipation necessary for high-e migration. We also show that tidal heating in the rocky core can lead to modest radius inflation of the planets, particularly when the planets are in the high-eccentricity phase ($e\sim 0.6$) during their high-e migration. Finally, as an interesting by-product of our study, we note that for a generic tidal response function ${\rm Im}[{\tilde k}_2(ω)]$, it is possible that spin equilibrium (zero torque) can be achieved for multiple spin frequencies (at a given $e$), and the actual pseudo-synchronized spin rate depends on the evolutionary history of the system.
description: 10 pages, 8 figures, MNRAS in press
The role of Housing Act 2004 licensing in addressing the needs and issues of stakeholders in the private rental housing sector of England and Wales
Creators: name: Dawson, Henry
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Public health not elsewhere classified

description: This two-stage study investigated how Housing Act 2004 property licensing schemes could address the needs and issues of stakeholders in the private rental sector, clarifying the role of licensing in the governance of the sector. Stage one used focus groups and interviews to establish the needs and issues within the sector. Thematic analysis presented a complex, dynamic environment dominated by small-scale investors. Increasing complexity of legislation and the negative media portrayal of landlords has impacted investor morale. Higher demand for accommodation and limited funding for regulators and tenant support services has led to a perceived lack of accountability for landlords and created an adverse environment for low income and minority group tenants. Property management varied considerably due to the range of operators in the sector rather than any minority ‘rogue element,’ challenging the binary depiction of landlords/agents as ‘good’ or ‘bad/rogue.’ Stage two used an adapted version of the 2010 Building Research Establishment survey questionnaire sent to English and Welsh councils, to assess licensing activity. This was supplemented by text analysis of the local authority licence conditions, to determine minimum requirements placed on licensed properties. Findings from this stage showed improvements in the levels of property maintenance, anti-social behaviour, waste handling and the management practices of landlords, predominantly through the use of informal enforcement approaches. Councils showed considerable variation in the minimum amenity levels and management standards required in licence conditions. Licensing resulted in greater partnership working, provision of support services and a raised profile for the regulator. These all contributed towards local area improvements, but changes could take longer than the five years of a single property licence to be fully realised. Licensing performs an important role in raising standards and protecting the public’s health, using a regulatory approach that was completely self-financing in half of the responding councils. Licensing has contributed successfully towards most of the government’s aims for the legislation. A number of obstacles to licensing have been considered, along with potential solutions. Finally the role of local authority licensing alongside national registration/licensing and a potential self-regulation scheme are considered in the concluding chapter of this thesis.
Early Rumor Detection Using Neural Hawkes Process with a New Benchmark Dataset
Creators: name: Zeng, Fengzhu
name: Gao, Wei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Little attention has been paid on \underline{EA}rly \underline{R}umor \underline{D}etection (EARD), and EARD performance was evaluated inappropriately on a few datasets where the actual early-stage information is largely missing. To reverse such situation, we construct BEARD, a new \underline{B}enchmark dataset for \underline{EARD}, based on claims from fact-checking websites by trying to gather as many early relevant posts as possible. We also propose HEARD, a novel model based on neural \underline{H}awkes process for \underline{EARD}, which can guide a generic rumor detection model to make timely, accurate and stable predictions. Experiments show that HEARD achieves effective EARD performance on two commonly used general rumor detection datasets and our BEARD dataset.
description: Accepted at NAACL 2022
Magnetocaloric properties of a frustrated Blume-Capel antiferromagnet
Creators: name: Žukovič, M.
name: Bobák, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Low-temperature magnetization processes and magnetocaloric properties of a geometrically frustrated spin-1 Blume-Capel model on a triangular lattice are studied by Monte Carlo simulations. The model is found to display qualitatively different behavior depending on the sign of the single-ion anisotropy D. For positive values of D we observe two magnetization plateaus, similar to the spin-1/2 Ising antiferromagnet, and negative isothermal entropy changes for any field intensity. For a range of small negative values of D there are four magnetization plateaus and the entropy changes can be either negative or positive, depending on the field. If D is negative but large in absolute value then the entropy changes are solely positive.
description: Submitted to conference proceedings JEMS13
Design of propulsors for underwater vehicle by comprehensive design method
Creators: name: Cha, Kyungjung
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: Propeller design
Nonlinear optimization
Vortex-lattice method
Reynolds-Averaged Navier-Stokes model
Propulsive efficiency
Propeller/hull interaction

description: A comprehensive method which designs the propeller blades with the maximum efficiency to move a given underwater vehicle at a specified speed is introduced. A previously developed nonlinear optimization algorithm which defines the blade shape by 4×4 B-spline polygon is applied for a target propeller thrust and a given inflow. The propeller performance is evaluated by a vortex-lattice method (VLM) within the optimization scheme. The interaction of the propeller with hull (and duct) is accounted for by coupling the VLM with a Reynolds-Averaged Navier-Stokes (RANS) solver, in order to determine the hull resistance, the propeller thrust, and the propeller inflow. The optimization method as well as the propeller/hull interaction method continue until the propeller thrust and the hull resistance equal each other. The method is applied to design various open, ducted, and contra-rotating propellers for a given underwater vehicle. Several combinations of propeller size and propeller RPM are studied. Additional pressure constraints, such as the minimum pressure constraint and the pressure difference constraint, are imposed for some cases. The effect of propeller diameter and propeller rotational speed on the resulting propeller performance and on the required power are explored, providing proof of concept for the presented method as well as guidance to the propeller designer.
Initial explorations of ARM processors for scientific computing
Creators: name: Abdurachmanov, David
name: Elmer, Peter
name: Eulisse, Giulio
name: Muzaffar, Shahzad
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Numerical Analysis (math.NA)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Power efficiency is becoming an ever more important metric for both high performance and high throughput computing. Over the course of next decade it is expected that flops/watt will be a major driver for the evolution of computer architecture. Servers with large numbers of ARM processors, already ubiquitous in mobile computing, are a promising alternative to traditional x86-64 computing. We present the results of our initial investigations into the use of ARM processors for scientific computing applications. In particular we report the results from our work with a current generation ARMv7 development board to explore ARM-specific issues regarding the software development environment, operating system, performance benchmarks and issues for porting High Energy Physics software.
description: Submitted to proceedings of the 15th International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT2013), Beijing. arXiv admin note: text overlap with arXiv:1311.1001
Chelemys macronyx
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Chelemys
Chelemys macronyx

description: Chelemys macronyx (Thomas, 1894). Ann. Mag. Nat. Hist., ser. 6, 14:362. TYPE LOCALITY: Argentina, Mendoza Prov., Fort San Rafael. DISTRIBUTION: E and W flanks of S Andes along Chile-Argentina boundary, about 34°S latitude south to Straits of Magellan. C Chilean distribution augmented by Pine et al. (1979). SYNONYMS: alleni, connectens, fumosus, vestitus. COMMENTS: Treated as a subspecies of C. megalonyx by Mann (1978) and Tamayo and Frassinetti (1980); recognized as species by Osgood (1943) and Pearson (1984). Osgood (1943) designated the skin of Notiomys connectens as the holotype of this composite specimen and synonymized it with [C.] macronyx vestitus.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 699, DOI: 10.5281/zenodo.7353098
description: {"references": ["Pine, R. H., S. D. Miller, and M. L. Schamberger. 1979. Contributions to the mammalogy of Chile. Mammalia, 43: 339 - 376.", "Mann, G. F. 1978. Los pequenos mamiferos de Chile (marsupiales, quiropteros, edentados y roedores). Guyana (Zoologia), 40: 1 - 342.", "Tamayo H., M., and D. Frassinetti C. 1980. Catalogo de los mamiferos fosiles y vivientes de Chile. Boletin de Museo Nacional de Historia Natural Chile (Santiago), 37: 323 - 399.", "Osgood, W. H. 1943. The mammals of Chile. Field Museum of Natural History, Zoological Series, 30: 1 - 268.", "Pearson, O. P. 1984. Taxonomy and natural history of some fossorial rodents of Patagonia, southern Argentina. Journal of Zoology, London, 202: 225 - 237."]}
Observation of Low Energy Raman Modes in Twisted Bilayer Graphene
Creators: name: He, Rui
name: Chung, Ting-Fung
name: Delaney, Conor
name: Keiser, Courtney
name: Jauregui, Luis A.
name: Shand, Paul M.
name: Chancey, C. C.
name: Wang, Yanan
name: Bao, Jiming
name: Chen, Yong P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Two new Raman modes below 100 cm^-1 are observed in twisted bilayer graphene grown by chemical vapor deposition. The two modes are observed in a small range of twisting angle at which the intensity of the G Raman peak is strongly enhanced, indicating that these low energy modes and the G Raman mode share the same resonance enhancement mechanism, as a function of twisting angle. The 94 cm^-1 mode (measured with a 532 nm laser excitation) is assigned to the fundamental layer breathing vibration (ZO (prime) mode) mediated by the twisted bilayer graphene lattice, which lacks long-range translational symmetry. The dependence of this modes frequency and linewidth on the rotational angle can be explained by the double resonance Raman process which is different from the previously-identified Raman processes activated by twisted bilayer graphene superlattice. The dependence also reveals the strong impact of electronic-band overlaps of the two graphene layers. Another new mode at 52 cm^-1, not observed previously in the bilayer graphene system, is tentatively attributed to a torsion mode in which the bottom and top graphene layers rotate out-of-phase in the plane.
description: 12 pages, 5 figures, 14 supp. figures (accepted by Nano Lett)
Accelerated Universes from type IIA Compactifications
Creators: name: Blåbäck, Johan
name: Danielsson, Ulf
name: Dibitetto, Giuseppe
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study slow-roll accelerating cosmologies arising from geometric compactifications of type IIA string theory on $T^{6}/(\mathbb{Z}_{2}\,\times\,\mathbb{Z}_{2})$. With the aid of a genetic algorithm, we are able to find quasi-de Sitter backgrounds with both slow-roll parameters of order $0.1$. Furthermore, we study their evolution by numerically solving the corresponding time-dependent equations of motion, and we show that they actually display a few e-folds of accelerated expansion. Finally, we comment on their perturbative reliability.
description: 22 pages, 3 figures and 5 tables
AIC Brochure
Creators: name: Graham, Rebecca
Publisher: name: Zenodo
Year: 2023

description: The AIC is led by the Digital Library Federation (DLF) with support from the College Art Association (CAA). Funded to July 2000 by The Andrew W. Mellon Foundation and the DLF, and with contributions from Yale and Carnegie Mellon Universities, the AIC is presently developing a prototype. The prototype is envisaged as a working system exemplifying what may be achieved in a networked environment by and for the visual arts community. It is a collection of images and a set of tools that may be implemented, configured, and extended locally to meet institutional needs. It is designed according to open source principles and in compliance with industry- wide standards and best practices. As importantly, during the prototype’s development, the AIC will investigate organizational, legal, and business issues and produce a set of recommendations about how best to secure the development of what we hope may emerge as a vital community resource. The prototype’s development is a collaborative effort that draws upon the expertise of art historians, visual resource specialists, leading computer technologists, and business and legal advisors. Its presentation to interested communities in venues such as the CAA Annual Meeting and the Art Libraries Society of North American Conference affords a crucial opportunity to solicit feedback from potential users and contributors— feedback that may be incorporated into its further development.
Chelemys megalonyx
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Chelemys
Chelemys megalonyx

description: Chelemys megalonyx (Waterhouse, 1845). Proc. Zool. Soc. Lond., 1844:154 [1845]. TYPE LOCALITY: Chile, Valparaiso Prov., Lake Quintero. DISTRIBUTION: C Chile, Coquimbo Prov. south to Magallanes. SYNONYMS: delfini, microtis, niger, scalops. COMMENTS: The association of delfini — retained by Osgood (1943) as a species related to C. macronyx but listed as a subspecies of C. megalonyx by Tamayo and Frassinetti (1980) —needs resolution.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 699, DOI: 10.5281/zenodo.7353098
description: {"references": ["Osgood, W. H. 1943. The mammals of Chile. Field Museum of Natural History, Zoological Series, 30: 1 - 268.", "Tamayo H., M., and D. Frassinetti C. 1980. Catalogo de los mamiferos fosiles y vivientes de Chile. Boletin de Museo Nacional de Historia Natural Chile (Santiago), 37: 323 - 399."]}
Are gamma-ray bursts the same at high redshift and low redshift?
Creators: name: Littlejohns, O. M.
name: Tanvir, N. R.
name: Willingale, R.
name: Evans, P. A.
name: O'Brien, P. T.
name: Levan, A. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The majority of Swift gamma-ray bursts (GRBs) observed at z > 6 have prompt durations of T90 < 30s, which, at first sight, is surprising given that cosmological time-dilation means this corresponds to < 5s in their rest frames. We have tested whether these high-redshift GRBs are consistent with being drawn from the same population as those observed at low-redshift by comparing them to an artificially red-shifted sample of 114 z < 4 bursts. This is accomplished using two methods to produce realistic high-z simulations of light curves based on the observed characteristics of the low-z sample. In Method 1 we use the Swift/BAT data directly, taking the photons detected in the harder bands to predict what would be seen in the softest energy band if the burst were seen at higher-z. In Method 2 we fit the light curves with a model, and use that to extrapolate the expected behaviour over the whole BAT energy range at any redshift. Based on the results of Method 2, a K-S test of their durations finds a ~1% probability that the high-z GRB sample is drawn from the same population as the bright low-z sample. Although apparently marginally significant, we must bear in mind that this test was partially a posteriori, since the rest-frame short durations of several high-z bursts motivated the study in the first instance.
description: Accepted for publication in MNRAS, 17 pages, 14 figures, 3 tables
Quantum Speed Limit and optimal evolution time in a two-level system
Creators: name: Poggi, P. M.
name: Lombardo, F. C.
name: Wisniacki, D. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum mechanics establishes a fundamental bound for the minimum evolution time between two states of a given system. Known as the quantum speed limit (QSL), it is a useful tool in the context of quantum control, where the speed of some control protocol is usually intended to be as large as possible. While QSL expressions for time-independent hamiltonians have been well studied, the time-dependent regime has remained somewhat unexplored, albeit being usually the relevant problem to be compared with when studying systems controlled by external fields. In this paper we explore the relation between optimal times found in quantum control and the QSL bound, in the (relevant) time-dependent regime, by discussing the ubiquitous two-level Landau-Zener type hamiltonian.
description: (6 pages, 5 figures). The paper has been modified after discussion with peers, which revealed misconceptions about the ideas of quantum speed limit and optimal evolution time. The focus of the article has been moved to the relation between both concepts in a quantum control scenario
Efficiency and profitability of commercial banks in the pre and post crisis periods: The case of the Indian banking sector
Creators: name: Rani, Mukta
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Financial institutions (incl. banking)

description: The data used for the research project is secondary panel data which has been collected from Reserve bank of India database. The technical efficiency and performance of 26 commercial banks of India have been analysed. The technical efficiency scores of banks have been calculated employing the non-parametric frontier method DEA i.e. Data Envelopment Analysis. The inputs and outputs of banking activity used in the DEA method are determined using the intermediation approach. Loan loss provisions, operating expenses, deposits and borrowings are used as inputs and; investments, advances, net interest income and total other income are considered as outputs of the banking activity. After this, the relationship of technical efficiency with profitability of banks has been tested in the two periods. Return on equity (ROE) has been taken as a measure of profitability of banks. Lastly, micro and macro determinants of ROE have been tested in the pre and post crisis periods using regression methods. The internal determinants researched in the thesis are capital adequacy, market share, bank size, bank age, liquidity, non-performing assets and net interest margin and; the external variables are GDP, Inflation, exchange rate and real interest rate.
Chibchanomys Voss 1988
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Chibchanomys

description: Chibchanomys Voss, 1988. Bull. Am. Mus. Nat. Hist., 188:321. TYPE SPECIES: Ichthyomys trichotis Thomas, 1897. COMMENTS: Ichthyomyine. Described as a species of Ichthyomys, trichotis was thereafter associated first with Rheomys (Cabrera, 1961; Tate, 1932/1) and then Anotomys (Handley, 1976). Generic distinctiveness and phylogenetic relationships substantiated by Voss (1988).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 699, DOI: 10.5281/zenodo.7353098
description: {"references": ["Handley, C. O., Jr. 1976. Mammals of the Smithsonian Venezuelan Project. Brigham Young University Science Bulletin, Biological Series, 20: 1 - 91.", "Voss, R. S. 1988. Systematics and ecology of ichthyomyine rodents (Muroidea): Patterns of morphological evolution in a small adaptive radiation. Bulletin of the American Museum of Natural History, 188: 259 - 493."]}
Tunable transport with broken space-time symmetries
Creators: name: Denisov, Sergey
name: Flach, Sergej
name: Hanggi, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Transport properties of particles and waves in spatially periodic structures that are driven by external time-dependent forces manifestly depend on the space-time symmetries of the corresponding equations of motion. A systematic analysis of these symmetries uncovers the conditions necessary for obtaining directed transport. In this work we give a unified introduction into the symmetry analysis and demonstrate its action on the motion in one-dimensional periodic, both in time and space, potentials. We further generalize the analysis to quasi-periodic drivings, higher space dimensions, and quantum dynamics. Recent experimental results on the transport of cold and ultracold atomic ensembles in ac-driven optical potentials are reviewed as illustrations of theoretical considerations.
description: Phys. Rep., in press
No $ψ$-epistemic model can fully explain the indistinguishability of quantum states
Creators: name: Barrett, Jonathan
name: Cavalcanti, Eric G.
name: Lal, Raymond
name: Maroney, Owen J. E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: According to a recent no-go theorem (M. Pusey, J. Barrett and T. Rudolph, Nature Physics 8, 475 (2012)), models in which quantum states correspond to probability distributions over the values of some underlying physical variables must have the following feature: the distributions corresponding to distinct quantum states do not overlap. This is significant because if the distributions do not overlap, then the quantum state itself is encoded by the physical variables. In such a model, it cannot coherently be maintained that the quantum state merely encodes information about underlying physical variables. The theorem, however, considers only models in which the physical variables corresponding to independently prepared systems are independent. This work considers models that are defined for a single quantum system of dimension $d$, such that the independence condition does not arise. We prove a result in a similar spirit to the original no-go theorem, in the form of an upper bound on the extent to which the probability distributions can overlap, consistently with reproducing quantum predictions. In particular, models in which the quantum overlap between pure states is equal to the classical overlap between the corresponding probability distributions cannot reproduce the quantum predictions in any dimension $d \geq 3$. The result is noise tolerant, and an experiment is motivated to distinguish the class of models ruled out from quantum theory.
description: 5+5 pages
Chibchanomys trichotis
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Chibchanomys
Chibchanomys trichotis

description: Chibchanomys trichotis (Thomas, 1897). Ann. Mag. Nat. Hist., ser. 6, 20:220. TYPE LOCALITY: Colombia, "W. Cundinamarca." DISTRIBUTION: Highlands in W Venezuela, Colombia, and Peru. COMMENTS: Provenience of type, taxonomy, and distribution reviewed by Voss (1988).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 699, DOI: 10.5281/zenodo.7353098
description: {"references": ["Voss, R. S. 1988. Systematics and ecology of ichthyomyine rodents (Muroidea): Patterns of morphological evolution in a small adaptive radiation. Bulletin of the American Museum of Natural History, 188: 259 - 493."]}
Stability of Cosmic Ray Modified Shocks: Two-Fluid Approach
Creators: name: Saito, Tatsuhiko
name: Hoshino, Masahiro
name: Amano, Takanobu
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The stability of the cosmic ray modified shock (CRMS) is studied by means of numerical simulations. Owing to the nonlinear feedback of cosmic-ray (CR) acceleration, a downstream state of the modified shock can no longer be uniquely determined for given upstream parameters. It is known that up to three distinct solutions exist, which are characterized by the CR production efficiency as "efficient", "intermediate" and "inefficient" branches. The stability of these solutions is investigated by performing direct time-dependent simulations of a two-fluid model. It is found that both the efficient and inefficient branches are stable even against a large-amplitude perturbation, while the intermediate one is always unstable and evolves into the inefficient state as a result of nonlinear time development. This bistable feature is robust in a wide range of parameters and does not depend on the injection model. Fully nonlinear time evolution of a hydrodynamic shock with injection results in the least efficient state in terms of the CR production, consistent with the bistable feature. This suggests that the CR production efficiency at supernova remnant shocks may be lower than previously discussed in the framework of the nonlinear shock acceleration theory considering the efficient solution of the CRMS.
description: 11 pages, 12 figures, corrected typo at equation (6), submitted to ApJ
A Low Dishonest Decade....Smart Acquisition and Defence Procurement into the New Millennium
Creators: name: Louth, John
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Other commerce, management, tourism and services not elsewhere classified

description: Smart acquisition was the change programme introduced at the end of the twentieth century charged with transforming the effectiveness of defence procurement within the United Kingdom. The initiative was rolled-out as a cornerstone of the Blair government’s strategic defence initiative from 1998 onwards and represents, today, the management philosophy, public sector organisational structures and UK industrial strategy for delivering defence equipment. This research seeks to understand the manner and extent of changes to defence procurement derived from the smart acquisition initiative, viewed as a ‘technology’ through which government exercises power. Accordingly, understanding smart acquisition develops and deepens our knowledge of the nature of government itself. I offer, initially, in chapters 1 and 2 an introduction to smart acquisition, its background and historical antecedence. I discuss the methodology employed for interrogating the phenomenon as an auto/ethnographical study of UK defence practices. Chapter 3 details the factors that drove defence reorganisation, whilst chapter 4 derives smart acquisition as rational and benign managerial change. Chapter 5 critiques this perspective by unveiling smart acquisition as a neoliberal construct through which government procures and cements assemblages of regimes of control and socialisation, legitimised through managerial narratives and governmentalist forms. A revised critical analytical model of smart acquisition embracing governmentalist notions is, consequently, provided in chapter 6. Chapter 7 introduces a specific defence procurement project team and describes its transformation strategy and emerging business model. In chapter 8 the project team is superficially revealed as a rational change agent embedding and embracing management reform. Chapter 9 critiques this, presenting the team as a constructed governmentalist regime, an expression of control, socialisation and surrender of agency. Chapter 10 concludes the research by observing that smart acquisition is a complex set of understandings and a multiplicity of forms and discourses.
Chilomys Thomas 1897
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Chilomys

description: Chilomys Thomas, 1897. Ann. Mag. Nat. Hist., ser. 6, 19:500. TYPE SPECIES: Oryzomys instans Thomas, 1895. COMMENTS: Arranged with oryzomyines (Reig, 1984) but tribal affinity obscure; perhaps more closely related to thomasomyines. Aspects of morphology reported by Carleton (1973) and Voss and Linzey (1981).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 699, DOI: 10.5281/zenodo.7353098
description: {"references": ["Thomas, O. 1895. Preliminary diagnoses of new mammals from northern Luzon, collected by Mr. John Whitehead. Annals and Magazine of Natural History, ser. 6, 16: 160 - 164.", "Reig, O. A. 1984. Distribucao geografica e historia evolutiva dos roedores muroideos sulamericanos (Cricetidae: Sigmodontinae). Revista Brasileira de Genetica, 7: 333 - 365.", "Carleton, M. D. 1973. A survey of gross stomach morphology in New World Cricetinae (Rodentia, Muroidea), with comments on functional interpretations. Miscellaneous Publications, Museum of Zoology, University of Michigan, 146: 1 - 43.", "Voss, R. S., and A. V. Linzey. 1981. Comparative gross morphology of male accessory glands among Neotropical Muridae (Mammalia: Rodentia) with comments on systematic implications. Miscellaneous Publications, Museum of Zoology, University of Michigan, 159: 1 - 41."]}
Occurence of variable insertion sites and copy numbers of IS6110 in genomes of Mycobacterium bovis field strains reveal high disparity among different genetic families
Creators: name: C. Charles, L. Michelet
Publisher: name: Zenodo
Year: 2020

description: The main causative agent of bovine tuberculosis (bTB), a livestock wordwide-spread but also zoonotic disease, is Mycobacterium bovis (M. bovis). The insertion sequence IS6110 is a genetic target frequently used for the molecular diagnosis of bTB. IS6110 may play a role in the phenotypic variation within the Mycobacterium tuberculosis complex (MTBC), an important pathogenic group to which M. bovis belongs. In contrast to other MTBC species, M. bovis is mostly considered as possessing one or very few copies of IS6110. Surprisingly, using a real-time IS6110-PCR as a first line diagnosis method for bTB in cattle, we observed variable detection signals depending on the genotype (spoligotyping-VNTR) of the infective strain, suggesting that IS6110 copy number could be variable among them.
Dark Matter from Hidden Forces
Creators: name: Davoudiasl, Hooman
name: Lewis, Ian M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We examine the possibility that dark matter may be the manifestation of dark forces of a hidden sector, i.e. "Dark Force = Dark Matter." As an illustrative and minimal example we consider the hidden SU(2)_h x U(1)_h gauge group. The hidden dynamics is indirectly coupled to the Standard Model (SM) through kinetic mixing of U(1)_h with the U(1)_Y of hypercharge. We assume a hidden symmetry breaking pattern analogous to that of the SM electroweak symmetry, augmented with an extra scalar that allows both the "hidden Z boson" Z_h and the "hidden photon" γ_h to be massive. The "hidden W" bosons W_h are dark matter in this scenario. This setup can readily accommodate a potential direct detection signal for dark matter at ~10 GeV from CDMSII-Si data. For some choices of parameters, the model can lead to signals both in "dark matter beam" experiments, from Z_h\to W_h W_h, as well as in experiments that look for visible signals of dark photons, mediated by γ_h. Other possible phenomenological consequences are also briefly discussed.
description: 11 pages, 4 figures; References and additional comments added. Results unchanged
Multiband gravitational wave observations of stellar binary black holes at the low to middle and high frequencies
Creators: name: Zhao, Yuetong
name: Lu, Youjun
name: Yan, Changshuo
name: Chen, Zhiwei
name: Ni, Wei-Tou
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The ground-based gravitational wave (GW) observatories discover a population of merging stellar binary black holes (BBHs), which are promising targets for multiband observations by the low-, middle-, and high-frequency GW detectors. In this paper, we investigate the multiband GW detections of BBHs and demonstrate the advantages of such observations in improving the localization and parameter estimates of the sources. We generate mock samples of BBHs by considering different formation models as well as the merger rate density constrained by the current observations (GWTC-3). We specifically consider the astrodynamical middle-frequency interferometer GW observatory (AMIGO) in the middle-frequency band and estimate that it may detect $21$-$91$ BBHs with signal-to-noise ratio $\varrho\geq8$ in a $4$-yr observation period. The multiband observations by the low-frequency detectors [Laser Interferometer Space Antenna (LISA) and Taiji] and AMIGO may detect $5$-$33$ BBHs with $\varrho_{\rm LT}\geq5$ and $\varrho_{\rm AMI}\geq5$, which can evolve to the high-frequency band within $4$ yr and can be detected by the Cosmic Explorer (CE) and Einstein Telescope (ET). The joint observations of LISA-Taiji-AMIGO-ET-CE may localize the majority of the detectable BBHs in sky areas of $7\times10^{-7}$ to $2\times10^{-3}$ deg$^2$, which is improved by a factor of $\sim120$, $\sim2.4\times10^{5}$, $\sim1.8\times10^{4}$, or $\sim1.2\times10^{4}$, comparing with those by only adopting CE-ET, AMIGO, LISA-Taiji, or LISA-Taiji-AMIGO. These joint observations can also lead to an improvement of the measurement precision of the chirp mass (symmetric mass ratio) by a factor of $\sim5.5\times10^{4}$ ($33$), $\sim16$ ($8$), $\sim120$ ($90$), or $\sim5$ ($5$), comparing with those by CE-ET, AMIGO, LISA-Taiji, or LISA-Taiji-AMIGO.
description: 16 pages, 12 figures, MNRAS published
Chilomys instans
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Chilomys
Chilomys instans

description: Chilomys instans (Thomas, 1895). Ann. Mag. Nat. Hist., ser. 6, 16:368. TYPE LOCALITY: Colombia, Cundinamarca Dept., Bogota region, Hacienda de La Selva, 1380 m. DISTRIBUTION: N Andes, from N Ecuador through C and N Colombia, to W Venezuela. Venezuelan distribution amplified by Handley (1976). SYNONYMS: fumeus.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 699, DOI: 10.5281/zenodo.7353098
description: {"references": ["Handley, C. O., Jr. 1976. Mammals of the Smithsonian Venezuelan Project. Brigham Young University Science Bulletin, Biological Series, 20: 1 - 91."]}
Neutrino mass textures from F-theory
Creators: name: Antoniadis, I.
name: Leontaris, G. K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Experimental data on the neutrino mixing and masses strongly suggest an underlying approximate symmetry of the relevant Yukawa superpotential terms. Intensive phenomenological explorations during the last decade indicate that permutation symmetries such as S_4, A_4 and their subgroups, under certain assumptions and vacuum alignments, predict neutrino mass textures compatible with such data. Motivated by these findings, in the present work we analyse the neutrino properties in F-theory GUT models derived in the framework of the maximal underlying E_8 symmetry in the elliptic fibration. More specifically, we consider local F-SU(5) GUT models and study in detail spectral cover geometries with monodromies associated to the finite symmetries S_4, A_4 and their transitive subgroups, including the dihedral group D_4 and Z_2 X Z_2. We discuss various issues that emerge in the implementation of S_4, A_4 neutrino models in the F-theory context and suggest how these can be resolved. Realistic models are presented for the case of monodromies based on their transitive subgroups. We exemplify this procedure with a detailed analysis performed for the case of Z_2 X Z_2 model.
description: 37 pages, 3 figures, revised version