cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Symmetry-resolved entanglement of 2D symmetry-protected topological states
Creators: name: Azses, Daniel
name: Mross, David F.
name: Sela, Eran
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Symmetry-resolved entanglement is a useful tool for characterizing symmetry-protected topological states. In two dimensions, their entanglement spectra are described by conformal field theories but the symmetry resolution is largely unexplored. However, addressing this problem numerically requires system sizes beyond the reach of exact diagonalization. Here, we develop tensor network methods that can access much larger systems and determine universal and nonuniversal features in their entanglement. Specifically, we construct one-dimensional matrix product operators that encapsulate all the entanglement data of two-dimensional symmetry-protected topological states. We first demonstrate our approach for the Levin-Gu model. Next, we use the cohomology formalism to deform the phase away from the fine-tuned point and track the evolution of its entanglement features and their symmetry resolution. The entanglement spectra are always described by the same conformal field theory. However, the levels undergo a spectral flow in accordance with an insertion of a many-body Aharonov-Bohm flux.
description: 16 pages, 12 figures
Bethe vectors of gl(3)-invariant integrable models, their scalar products and form factors
Creators: name: Ragoucy, E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: This short note corresponds to a talk given at "Lie Theory and Its Applications in Physics", (Varna, Bulgaria, June 2013) and is based on joint works with S. Belliard, S. Pakuliak and N. Slavnov, see arXiv:1206.4931, arXiv:1207.0956, arXiv:1210.0768, arXiv:1211.3968 and arXiv:1312.1488.
description: 15 pages
Evidence for quiescent synchrotron emission in the black hole X-ray transient Swift J1357.2-0933
Creators: name: Shahbaz, T.
name: Russell, D. M.
name: Zurita, C.
name: Casares, J.
name: Corral-Santana, J. M.
name: Dhillon, V. S.
name: Marsh, T. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present high time-resolution ULTRACAM optical and NOTCam infrared observations of the edge-on black hole X-ray transient Swift J1357.2-0933. Our data taken in 2012 and 2013 show the system to be at its pre-outburst magnitude and so the system is in quiescence. In contrast to other X-ray transients, the quiescent light curves of Swift J1357.2-0933 do not show the secondary star's ellipsoidal modulation. The optical light curve is dominated by variability with an optical fractional rms of ~35 per cent, a factor of >3 larger than what is observed in other systems at similar time-resolution. Optical flare events lasting 2-10min with amplitudes of up to ~1.5 mag are seen as well as numerous rapid ~0.8 mag dip events which are similar to the optical dips seen in outburst. Similarly the infrared J-band light curve is dominated by variability with a fractional rms of ~21 per cent and flare events lasting 10--30 min with amplitudes of up to ~1.5 mag are observed. The quiescent optical to mid-infrared spectral energy distribution in quiescence is dominated by a non-thermal component with a power--law index of -1.4, (the broad-band rms SED has a similar index) which arises from optically thin synchrotron emission most likely originating in a weak jet; the lack of a peak in the spectral energy distribution rules out advection-dominated models. Using the outburst amplitude--period relation for X-ray transients we estimate the quiescent magnitude of the secondary star to lie in the range V_min=22.7 to 25.6, which when combined with the absolute magnitude of the expected M4.5 V secondary star allows us to constrain to the distance to lie in the range 0.5 to 6.3 kpc. (Abridged)
description: 12 pages, 7 figures, 2 tables, accepted for publication in MNRAS
Our raw data from Plant carbohydrate content limits performance and lipid accumulation of an outbreaking herbivore
Creators: name: Talal, Stav
name: Cease, Arianne J.
name: Youngblood, Jacob P.
name: Farington, Ruth
name: Trumper, Eduardo V.
name: Medina, Hector E.
name: Rojas, Julio E.
name: A. Fernando Copa
name: Harrison, Jon F.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Locusts are major intermittent threats to food security and the ecological factors determining where and when these occur remain poorly understood. For many herbivores, obtaining adequate protein from plants is a key challenge. We tested how dietary protein:non-structural carbohydrate ratio (p : c) affects the developmental and physiological performance of 4th-5th instar nymphs of the South American locust, Schistocerca cancellata, which has recently resurged in Argentina, Bolivia and Paraguay. Field marching locusts preferred to feed on high carbohydrate foods. Field-collected juveniles transferred to the laboratory selected artificial diets or local plants with low p : c. On single artificial diets, survival rate increased as foods became more carbohydrate-biased. On single local plants, growth only occurred on the plant with the lowest p : c. Most local plants had p : c ratios substantially higher than optimal, demonstrating that field marching locusts must search for adequate carbohydrate or their survival and growth will be carbohydrate-limited. Total body lipids increased as dietary p : c decreased on both artificial and plant diets, and the low lipid contents of field-collected nymphs suggest that obtaining adequate carbohydrate may pose a strong limitation on migration for S. cancellata. Anthropogenic influences such as conversions of forests to pastures, may increase carbohydrate availability and promote outbreaks and migration of some locusts.
Frequency Domain Min-Max Optimization of Noise-Shaping Delta-Sigma Modulators
Creators: name: Nagahara, Masaaki
name: Yamamoto, Yutaka
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: This paper proposes a min-max design of noise-shaping delta-sigma modulators. We first characterize the all stabilizing loop-filters for a linearized modulator model. By this characterization, we formulate the design problem of lowpass, bandpass, and multi-band modulators as minimization of the maximum magnitude of the noise transfer function (NTF) in fixed frequency band(s). We show that this optimization minimizes the worst-case reconstruction error, and hence improves the SNR (signal-to-noise ratio) of the modulator. The optimization is reduced to an optimization with a linear matrix inequality (LMI) via the generalized KYP (Kalman-Yakubovich-Popov) lemma. The obtained NTF is an FIR (finite-impulse-response) filter, which is favorable in view of implementation. We also derive a stability condition for the nonlinear model of delta-sigma modulators with general quantizers including uniform ones. This condition is described as an H-infinity norm condition, which is reduced to an LMI via the KYP lemma. Design examples show advantages of our design.
Supplementary mothods for flight capability from Plant carbohydrate content limits performance and lipid accumulation of an outbreaking herbivore
Creators: name: Talal, Stav
name: Cease, Arianne J.
name: Youngblood, Jacob P.
name: Farington, Ruth
name: Trumper, Eduardo V.
name: Medina, Hector E.
name: Rojas, Julio E.
name: A. Fernando Copa
name: Harrison, Jon F.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Locusts are major intermittent threats to food security and the ecological factors determining where and when these occur remain poorly understood. For many herbivores, obtaining adequate protein from plants is a key challenge. We tested how dietary protein:non-structural carbohydrate ratio (p : c) affects the developmental and physiological performance of 4th-5th instar nymphs of the South American locust, Schistocerca cancellata, which has recently resurged in Argentina, Bolivia and Paraguay. Field marching locusts preferred to feed on high carbohydrate foods. Field-collected juveniles transferred to the laboratory selected artificial diets or local plants with low p : c. On single artificial diets, survival rate increased as foods became more carbohydrate-biased. On single local plants, growth only occurred on the plant with the lowest p : c. Most local plants had p : c ratios substantially higher than optimal, demonstrating that field marching locusts must search for adequate carbohydrate or their survival and growth will be carbohydrate-limited. Total body lipids increased as dietary p : c decreased on both artificial and plant diets, and the low lipid contents of field-collected nymphs suggest that obtaining adequate carbohydrate may pose a strong limitation on migration for S. cancellata. Anthropogenic influences such as conversions of forests to pastures, may increase carbohydrate availability and promote outbreaks and migration of some locusts.
PEŔEZ MORALES, Edgardo (2018). No Limits to Their Sway: Cartagena’s Privateers and the Masterless Caribbean in the Age of Revolution. Nashville: Vanderbilt University Press, 236 p.
Creators: name: Pupo Pernet, Guillermo
Publisher: name: Dirāsāt Hispānicas. Revista Tunecina de Estudios Hispánicos
Year: 2020

description: Reseña bibliográfica
description: Dirāsāt Hispānicas. Revista Tunecina de Estudios Hispánicos, N.º 6 (2020)
Regular matchstick graphs
Creators: name: Kurz, Sascha
name: Pinchasi, Rom
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52C99, 05C62

description: A graph G=(V,E) is called a unit-distance graph in the plane if there is an injective embedding of V in the plane such that every pair of adjacent vertices are at unit distance apart. If additionally the corresponding edges are non-crossing and all vertices have the same degree r we talk of a regular matchstick graph. Due to Euler's polyhedron formula we have $r\le 5$. The smallest known 4-regular matchstick graph is the so called Harborth graph consisting of 52 vertices. In this article we prove that no finite 5-regular matchstick graph exists and provide a lower bound for the number of vertices of 4-regular matchstick graphs.
description: 7 pages, 1 table, 2 figures
CAMACHO, Jorge (2018). Amos, siervos y revolucionarios: la literatura de las guerras de Cuba (1868-1898), una perspectiva transatlántica. Madrid: Iberoamericana/Vervuert, 318 p.
Creators: name: Ghorbal, Karim
Publisher: name: Dirāsāt Hispānicas. Revista Tunecina de Estudios Hispánicos
Year: 2020

description: Reseña bibliográfica
description: Dirāsāt Hispānicas. Revista Tunecina de Estudios Hispánicos, N.º 6 (2020)
Systematic study for two-dimensional $Z_2$ topological phase transitions at high-symmetry points in all layer groups
Creators: name: Sasaki, Ren
name: Tanaka, Yutaro
name: Murakami, Shuichi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We construct a general theory of $Z_2$ topological phase transitions in two-dimensional systems with time-reversal symmetry. We investigate the possibilities of $Z_2$ topological phase transitions at band inversions at all high-symmetry points in $k$-space in all the 80 layer groups. We exclude the layer groups with inversion symmetry because the $Z_2$ topological phase transition is known to be associated with band inversions with an exchange of parities. Among the other layer groups, we find 21 layer groups with insulator-to-insulator transitions with band inversion, and this problem is finally reduced to five point groups $C_3, C_4, C_6, S_4$, and $C_{3h}$. We show how the change of the $Z_2$ topological invariant at a band inversion is entirely determined by the irreps of occupied and unoccupied bands at the high-symmetry point. For example, in the case of $C_3$, we show that the $Z_2$ topological invariants change whenever the band inversion occurs between two Kramers pairs whose $C_3$ eigenvalues are $\{e^{πi / 3}, e^{-πi / 3}\}$ and $\{-1, -1\}$. These results are not included in the theory of symmetry-based indicators or topological quantum chemistry.
description: 15 pages, 9 figures
Fluent APIs in Functional Languages (full version)
Creators: name: Roth, Ori
name: Gil, Yossi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Fluent API is an object-oriented pattern for elegant APIs and embedded DSLs. A smart fluent API can enforce the API protocol or DSL syntax at compile time. As fluent API designs typically rely on function overloading, they are hard to realize in functional programming languages. We show how to write functional fluent APIs using parametric polymorphism and type inference instead of overloading. Our designs support all regular and deterministic context-free API protocols and beyond.
Triaxial nuclei and analytical solutions of the conformable fractional Bohr Hamiltonian with some exponential-type potentials
Creators: name: Hammad, M. M.
name: Yahia, M. M.
name: Bonatsos, Dennis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: New approximate analytical solutions have been obtained for the conformable fractional collective Bohr Hamiltonian suitable for triaxial nuclei, with the harmonic oscillator in γ-part of the collective potential and different exponential-type potentials (namely Morse, Tietz-Hua, and multi-parameter exponential-type potential) in \b{eta}-part. The conformable fractional Nikiforov-Uvarov approach is used to derive closed analytical formulas for energy spectra and wave functions. The relation between the conformable fractional spectra of the three potentials and the Z(5) spectrum has been studied. The evolution of the energy spectra as a function of the potential parameters has been investigated for the three potentials. The normalized B(E2) transition rates and spectra have been calculated and compared with the experimental data and theoretical predictions of Kratzer potential. The predictions can describe well the experimental results for 114,116Pd, 126,128Xe, and 192,194Pt isotopes.
title: The Unconfined Power of European Union Law
Creators: name: Chalmers, Damian
Publisher: name: European Papers (www.europeanpapers.eu)
Year: 2016
Subjects: subject: power of EU law
subject: conflicts and EU law
subject: public opinion
subject: culture and EU law
subject: expertise and EU law
subject: solidarity

description: European Papers - A Journal on Law and Integration, 2016 1(2), 405-437
description: I. Introduction. - II. The three puzzles of EU contestation. - III. The three dimensions of EU legal power. - III.1. EU law's excessive responsibilisation of its subjects. - III.2. The obscure and destabilising features of what the European Union does. - III.3. EU law's alienating depiction of life. - IV. Unconfined EU legal power? - IV.1. The confines of the Treaties. - IV.2. The casual disregard for EU legal power by the Court of Justice. - IV.3. The impoverished vocabulary of national constitutional courts. - V. The incidence, dynamics and significance of EU legal conflicts. - V.1. The incidence of conflicts: expert and non expert worlds. - V.2. The dynamics of contestation: the dislocation of the familiar and authoritarian overreach. - VI. Conclusion.
description: Certain features condition when most EU law comes into being. EU laws must compete with other laws for authority. They form part of legal regimes which are partial in scope and can cut across national legal regimes. They justify themselves by reference to a vision of political community which values what individuals do together more than simply their living together. These features act as a source of conflict in two ways. They, first, endow EU law with certain qualities which act as a source of stress. These include over-responsibilisation, destabilisation and functionalism. Secondly, the concern to secure authority by legislating better to realise certain shared activities leads to expertise heavily influencing both the content and incidence of EU law and to a disregard of those activities which link daily life experiences to wider processes of identity formation. The failure to address these features is central to the malaise and antipathy currently confronting the European Union.
A characterization of the relative entropies
Creators: name: Gselmann, Eszter
name: Maksa, Gyula
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 94A17, 39B82, 39B72

description: In this note we give a characterization of a family of relative entropies on open domain depending on a real parameter $α$ based on recursivity and symmetry. In the cases $α=1$ and $α=0$ we use additionally a weak regularity assumption while in the other cases no regularity assumptions are made at all.
description: 8 pages, published in Annales Univ. Sci. Budapest., Sect. Comp in 2011
Bringing Online Egocentric Action Recognition into the wild
Creators: name: Goletto, Gabriele
name: Planamente, Mirco
name: Caputo, Barbara
name: Averta, Giuseppe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: To enable a safe and effective human-robot cooperation, it is crucial to develop models for the identification of human activities. Egocentric vision seems to be a viable solution to solve this problem, and therefore many works provide deep learning solutions to infer human actions from first person videos. However, although very promising, most of these do not consider the major challenges that comes with a realistic deployment, such as the portability of the model, the need for real-time inference, and the robustness with respect to the novel domains (i.e., new spaces, users, tasks). With this paper, we set the boundaries that egocentric vision models should consider for realistic applications, defining a novel setting of egocentric action recognition in the wild, which encourages researchers to develop novel, applications-aware solutions. We also present a new model-agnostic technique that enables the rapid repurposing of existing architectures in this new context, demonstrating the feasibility to deploy a model on a tiny device (Jetson Nano) and to perform the task directly on the edge with very low energy consumption (2.4W on average at 50 fps). The code is publicly available at: https://github.com/EgocentricVision/EgoWild.
description: Accepted to RA-L, for associated video, see https://www.youtube.com/watch?v=7rtynmoYnuw&t=9s
Fast regocnition of planar non unit distance graphs
Creators: name: Kurz, Sascha
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C10, 52A40

description: We study criteria attesting that a given graph can not be embedded in the plane so that neighboring vertices are at unit distance apart and the straight line edges do not cross.
description: 9 pages, 1 table, 5 figures
SILVERSTEIN, Stephen (2016). The Merchant of Havana: The Jew in the Cuban Abolitionist Archive. Nashville: Vanderbilt University Press, 205 p.
Creators: name: Ghorbal, Karim
Publisher: name: Dirāsāt Hispānicas. Revista Tunecina de Estudios Hispánicos
Year: 2018

description: Reseña bibliográfica
description: Dirāsāt Hispānicas. Revista Tunecina de Estudios Hispánicos, N.º 5 (2018)
Supplementary tables from Plant carbohydrate content limits performance and lipid accumulation of an outbreaking herbivore
Creators: name: Talal, Stav
name: Cease, Arianne J.
name: Youngblood, Jacob P.
name: Farington, Ruth
name: Trumper, Eduardo V.
name: Medina, Hector E.
name: Rojas, Julio E.
name: A. Fernando Copa
name: Harrison, Jon F.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Locusts are major intermittent threats to food security and the ecological factors determining where and when these occur remain poorly understood. For many herbivores, obtaining adequate protein from plants is a key challenge. We tested how dietary protein:non-structural carbohydrate ratio (p : c) affects the developmental and physiological performance of 4th-5th instar nymphs of the South American locust, Schistocerca cancellata, which has recently resurged in Argentina, Bolivia and Paraguay. Field marching locusts preferred to feed on high carbohydrate foods. Field-collected juveniles transferred to the laboratory selected artificial diets or local plants with low p : c. On single artificial diets, survival rate increased as foods became more carbohydrate-biased. On single local plants, growth only occurred on the plant with the lowest p : c. Most local plants had p : c ratios substantially higher than optimal, demonstrating that field marching locusts must search for adequate carbohydrate or their survival and growth will be carbohydrate-limited. Total body lipids increased as dietary p : c decreased on both artificial and plant diets, and the low lipid contents of field-collected nymphs suggest that obtaining adequate carbohydrate may pose a strong limitation on migration for S. cancellata. Anthropogenic influences such as conversions of forests to pastures, may increase carbohydrate availability and promote outbreaks and migration of some locusts.
ORTEGA, Marie-Linda et Sylvie TURC-ZINOPOULOS, dir./eds. (2017). De la violence et des femmes : Espagne, 1808-1918 / De la violencia y de las mujeres: España, 1808-1918. Bruxelles : PIE Pieter Lang, 229 p.
Creators: name: Langue, Frédérique
Publisher: name: Dirāsāt Hispānicas. Revista Tunecina de Estudios Hispánicos
Year: 2018

description: Reseña bibliográfica
description: Dirāsāt Hispānicas. Revista Tunecina de Estudios Hispánicos, N.º 5 (2018)
SLOPT: Bandit Optimization Framework for Mutation-Based Fuzzing
Creators: name: Koike, Yuki
name: Katsura, Hiroyuki
name: Yakura, Hiromu
name: Kurogome, Yuma
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Mutation-based fuzzing has become one of the most common vulnerability discovery solutions over the last decade. Fuzzing can be optimized when targeting specific programs, and given that, some studies have employed online optimization methods to do it automatically, i.e., tuning fuzzers for any given program in a program-agnostic manner. However, previous studies have neither fully explored mutation schemes suitable for online optimization methods, nor online optimization methods suitable for mutation schemes. In this study, we propose an optimization framework called SLOPT that encompasses both a bandit-friendly mutation scheme and mutation-scheme-friendly bandit algorithms. The advantage of SLOPT is that it can generally be incorporated into existing fuzzers, such as AFL and Honggfuzz. As a proof of concept, we implemented SLOPT-AFL++ by integrating SLOPT into AFL++ and showed that the program-agnostic optimization delivered by SLOPT enabled SLOPT-AFL++ to achieve higher code coverage than AFL++ in all of ten real-world FuzzBench programs. Moreover, we ran SLOPT-AFL++ against several real-world programs from OSS-Fuzz and successfully identified three previously unknown vulnerabilities, even though these programs have been fuzzed by AFL++ for a considerable number of CPU days on OSS-Fuzz.
description: To appear in Proceedings of the 2022 Annual Computer Security Applications Conference (ACSAC '22)
Symmetric quiver Hecke algebras and R-matrices of quantum affine algebras II
Creators: name: Kang, Seok-Jin
name: Kashiwara, Masaki
name: Kim, Myungho
Publisher: name: arXiv
Year: 2013
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 81R50, 16G, 16T25, 17B37

description: Let $\g$ be an untwisted affine Kac-Moody algebra of type $A^{(1)}_n$ $(n \ge 1)$ or $D^{(1)}_n$ $(n \ge 4)$ and let $\g_0$ be the underlying finite-dimensional simple Lie subalgebra of $\g$. For each Dynkin quiver $Q$ of type $\g_0$, Hernandez and Leclerc (\cite{HL11}) introduced a tensor subcategory $\CC_Q$ of the category of finite-dimensional integrable $\uqpg$-modules and proved that the Grothendieck ring of $\CC_Q$ is isomorphic to $\C [N]$, the coordinate ring of the unipotent group $N$ associated with $\g_0$. We apply the generalized quantum affine Schur-Weyl duality introduced in \cite{KKK13} to construct an exact functor $\F$ from the category of finite-dimensional graded $R$-modules to the category $\CC_Q$, where $R$ denotes the symmetric quiver Hecke algebra associated to $\g_0$. We prove that the homomorphism induced by the functor $\F$ coincides with the homomorphism of Hernandez and Leclerc and show that the functor $\F$ sends the simple modules to the simple modules.
description: 46 pages
Supplementary Figures from Plant carbohydrate content limits performance and lipid accumulation of an outbreaking herbivore
Creators: name: Talal, Stav
name: Cease, Arianne J.
name: Youngblood, Jacob P.
name: Farington, Ruth
name: Trumper, Eduardo V.
name: Medina, Hector E.
name: Rojas, Julio E.
name: A. Fernando Copa
name: Harrison, Jon F.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Locusts are major intermittent threats to food security and the ecological factors determining where and when these occur remain poorly understood. For many herbivores, obtaining adequate protein from plants is a key challenge. We tested how dietary protein:non-structural carbohydrate ratio (p : c) affects the developmental and physiological performance of 4th-5th instar nymphs of the South American locust, Schistocerca cancellata, which has recently resurged in Argentina, Bolivia and Paraguay. Field marching locusts preferred to feed on high carbohydrate foods. Field-collected juveniles transferred to the laboratory selected artificial diets or local plants with low p : c. On single artificial diets, survival rate increased as foods became more carbohydrate-biased. On single local plants, growth only occurred on the plant with the lowest p : c. Most local plants had p : c ratios substantially higher than optimal, demonstrating that field marching locusts must search for adequate carbohydrate or their survival and growth will be carbohydrate-limited. Total body lipids increased as dietary p : c decreased on both artificial and plant diets, and the low lipid contents of field-collected nymphs suggest that obtaining adequate carbohydrate may pose a strong limitation on migration for S. cancellata. Anthropogenic influences such as conversions of forests to pastures, may increase carbohydrate availability and promote outbreaks and migration of some locusts.
On the reliability of measuring differential rotation of spotted stars
Creators: name: Kővári, Zsolt
name: Bartus, János
name: Kriskovics, Levente
name: Vida, Krisztián
name: Oláh, Katalin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Cross-correlation of consecutive Doppler images is one of the most common techniques used to detect surface differential rotation (hereafter DR) on spotted stars. The disadvantage of a single cross-correlation is, however, that the expected DR pattern can be overwhelmed by sudden changes in the apparent spot configuration. Another way to reconstruct the image shear using Doppler imaging is to include a predefined latitude-dependent rotation law in the inversion code (`sheared image method'). However, special but not unusual spot distributions, such like a large polar cap or an equatorial belt (e.g., small random spots evenly distributed along the equator), can distort the rotation profile similarly as the DR does, consequently, yielding incorrect measure of the DR from the sheared image method. To avoid these problems, the technique of measuring DR from averaged cross-correlations using time-series Doppler images (`ACCORD') is introduced and the reliability of this tool is demonstrated on artificial data.
description: 2 pages, 2 figures, to be appeared in 'Magnetic Fields Throughout the Stellar Evolution', Proc. IAU Symp. 302, (26-30 Aug 2013, Biarritz, France)
Constraints on Dark Energy from the Gravitational Wave Background
Creators: name: Khodagholizadeh, Jafar
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Current observational data indicate that dark energy (DE) is a cosmological constant without considering its conclusiveness evidence. Considering the dynamic nature of $Λ$ individually as a function of time and the scale factor, we review their effects on the gravitational waves. This article is a continuation of the previous work \textit{JHEAp 36 (2022) 48-54}, in which DE only was based on Hubble's parameter and/or its derivatives. For the DE model based on the scale factor ($a^{-m}$), the results showed that the parameter $m$ is more limited as $ 2 < m \leqslant 3$ compared with the other models and due to the small value of DE density at the early universe. It is only in the mode $m=3$ that DE affects the low-frequency gravitational waves when its frequency is less than the $10^{-3}$Hz in a matter-dominated epoch. The broad bound on reducing the amplitude and the "B-B" polarization multipole coefficients, from maximum to minimum, is for the models developed based on the Hubble parameter function. There are primary sources of low- and very low-frequency GWs, such as the coalescence of massive black hole binaries with $M_{bh} > 10^{3} M_{sun}$, to determine the type of DE by mHz frequency space experiments (e.g., LISA) and by nHz-range NANOGrav 15-year data.
description: 24 pages. arXiv admin note: text overlap with arXiv:2208.06844
Ground-state phase diagram of the extended two-leg $t$-$J$ ladder
Creators: name: Lu, Xin
name: Qu, Dai-Wei
name: Qi, Yang
name: Li, Wei
name: Gong, Shou-Shu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Inspired by the observation of a robust $d$-wave superconducting phase driven by tuning the next-nearest-neighbor (NNN) electron hopping in recent density matrix renormalization group (DMRG) studies of six- and eight-leg $t$-$J$ model, we systematically study the phase diagram of the two-leg $t$-$J$ ladder with the NNN couplings (including NNN hopping and spin interaction) in a large region of doping level, by means of the DMRG calculations. Upon doping from half filling, we identify the Luther-Emery liquid (LEL) phase, which can be distinguished as the pairing-dominant and charge density-dominant regime by comparing the Luttinger parameter $K_ρ$. With the growing NNN couplings, pairing correlations are enhanced and correspondingly $K_ρ$ increases, driving the system from the density-dominant to the pairing-dominant regime. In the Tomonaga-Luttinger liquid (TLL) phase in the larger doping region, we identify two TLL regimes with different features of charge density correlation. At the quarter filling ($1/2$ doping level), we find that the strong dimer orders of bond energy in the open system actually decay algebraically and thus do not indicate a spontaneous translational symmetry breaking. Our results show that in the LEL phase of the two-leg ladder, the NNN couplings seem to play the similar role as that on the wider $t$-$J$ cylinder, and studies on this more accessible system can be helpful towards understanding the emergence of the remarkable $d$-wave superconducting phase on the wider system.
description: 16 pages, 15 figures
title: Legal and Accountability Issues Arising from the ECB's Conditionality
Creators: name: Viterbo, Annamaria
Publisher: name: European Papers (www.europeanpapers.eu)
Year: 2016
Subjects: subject: ECB
subject: conditionality
subject: collateral
subject: SMP
subject: ELA
subject: OMT
subject: PSPP

description: European Papers - A Journal on Law and Integration, 2016 1(2), 501-531
description: I. Introduction. - II. The ECB's conditionality in context. - III. Conditionality applied to collateral eligibility for Eurosystem credit operations. - IV. Conditionality applied to the provision of Emergency Liquidity Assistance. - V. Conditionality applied to the Securities Markets Programme. - VI. Conditionality applied to the transfer of SMP profits to Greece. - VII. The shift to explicit conditionality in the Outright Monetary Transactions and the Public Sector Purchase programmes. - VIII. Conclusions.
description: The aim of this research is to clarify the legal framework under which the ECB applies its conditionality policy, by making a distinction between implicit and explicit conditionality. In the first years of the sovereign debt crisis, the ECB resorted to an implicit form of conditionality, driving Euro Area Member States towards acceptance of an economic adjustment programme or the adoption of significant economic, fiscal and structural reforms. Implicit conditionality has been applied in the context of the ECB's collateral policy, to the provision of Emergency Liquidity Assistance (ELA), to the purchase of sovereign bonds under the Securities Markets Programme (SMP), as well as to the transfer of profits deriving from these purchases (the so-called SMP profits). Eventually, the ECB decided to shift to explicit conditionality. Under the Outright Monetary Transactions programme (OMT) and the Public Sector Purchase Programme (PSPP), sovereign bonds purchases became subject to compliance with the EU/IMF strict and effective conditionality. The temporary framework for collateral eligibility was modified following the same approach. While the shift to explicit condi-tionality has to be welcomed, it does not lessen concerns about the ECB's democratic accountability and its interference in domestic reform processes. Some regards the ECB's conditionality as a true political action departing from the standards of neutrality and independence that central banks should meet. This paper describes the set of policy instruments through which conditionality has been applied, with a view to assess the legitimacy of the ECB's actions.
Elementary excitations in an integrable twisted J1-J2 spin chain in the thermodynamic limit
Creators: name: Wang, Wei
name: Qiao, Yi
name: Liu, Rong-Hua
name: Liu, Wu-Ming
name: Cao, Junpeng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The exact elementary excitations in a typical U(1) symmetry broken quantum integrable system, that is the twisted J1-J2 spin chain with nearest-neighbor, next nearest neighbor and chiral three spin interactions, are studied. The main technique is that we quantify the energy spectrum of the system by the zero roots of transfer matrix instead of the traditional Bethe roots. From the numerical calculation and singularity analysis, we obtain the patterns of zero roots. Based on them, we analytically obtain the ground state energy and the elementary excitations in the thermodynamic limit. We find that the system also exhibits the nearly degenerate states in the regime of $η\in \mathbb{R}$, where the nearest-neighbor couplings among the z-direction are ferromagnetic. More careful study shows that the competing of interactions can induce the gapless low-lying excitations and quantum phase transition in the antiferromagnetic regime with $η\in \mathbb{R}+iπ$.
description: 29 pages, 20 figures
A lower bound for 4-regular planar unit distance graphs
Creators: name: Kurz, Sascha
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C10, 52A40

description: We perform an exhaustive search for the minimum 4-regular unit distance graph resulting in a lower bound of 34 vertices.
description: 11 pages, 5 figures
title: Brexit Referendum: Beginning of the End or Just a Turning Point?
Creators: name: Lazowski, Adam
Publisher: name: European Papers (www.europeanpapers.eu)
Year: 2016
Subjects: subject: Brexit
subject: United Kingdom
subject: referendum
subject: European Union
subject: Article 50 TEU
subject: disintegration

description: European Papers - A Journal on Law and Integration, 2016 1(2), 377-381
description: On 23 June 2016 the voters, by a slim majority, decided that the United Kingdom (UK) should leave the European Union. This has been a major earthquake with political and economic aftershocks going beyond the white cliffs of Dover. They are destined to continue for months, if not years. For the first time in history of the European Communities/the European Union a Member State has decided to ask for a divorce. It may well be a major turning point, a wake-up call for the EU, its political elites and millions of EU citizens. It may lead to stagnation and slow demise of the EU, it may well lead to consolidation or even deeper integration. While predicting the future should be left to fortune-tellers, the academic community will use a lot of ink to analyze, among other things, the political, legal and economic implications of the Brexit vote. This short Editorial is by no means an attempt to analyze the Brexit referendum in great depth. It merely aims to give some food for thought.
Higher order complex cubic quintic Ginzburg Landau equation : Chirped solitary waves
Creators: name: Saha, Naresh
name: Roy, Baranana
name: Khare, Avinash
Publisher: name: arXiv
Year: 2023
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Propagation characteristics of the chirped dissipative solitary waves are investigated within the framework of higher order complex cubic quintic Ginzburg Landau equation. Potentially rich set of exact chirped dissipative pulses, such as, bright, dark, grey, antidark, kink, antikink are derived in the presence of the self steepening, self frequency shift and nonlinear gain/loss. The linear stability results are corroborated by the direct numerical simulations. The effect of the variation of model parameters on physical quantities like the speed, amplitude and chirping are explored.
description: To appear in Europhysics Letters
Golden Ratio Controlled Chaos in Supersymmetric Dynamics
Creators: name: Hubsch, Tristan
name: Katona, Gregory A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct supersymmetric Lagrangians for the recently constructed off-shell worldline N=3 supermultiplet $Y_I/(i D_I X)$ for I=1,2,3, where $Y_I$ and $X$ are standard, Salam-Strathdee superfields: $Y_I$ fermionic and $X$ bosonic. Already the Lagrangian bilinear in component fields exhibits a total of thirteen free parameters, seven of which specify Zeeman-like coupling to external (magnetic) fluxes. All but special subsets of this parameter space describe aperiodic oscillatory response, some of which are controlled by the "golden ratio," $φ\approx1.61803$. We also show that all of these Lagrangians admit an $N=3\to 4$ supersymmetry extension, while a subset admits two inequivalent such extensions.
Filtration-Domination in Bifiltered Graphs
Creators: name: Alonso, Ángel Javier
name: Kerber, Michael
name: Pritam, Siddharth
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Geometry (cs.CG)
subject: Algebraic Topology (math.AT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.2.2

description: Bifiltered graphs are a versatile tool for modelling relations between data points across multiple grades of a two-dimensional scale. They are especially popular in topological data analysis, where the homological properties of the induced clique complexes are studied. To reduce the large size of these clique complexes, we identify filtration-dominated edges of the graph, whose removal preserves the relevant topological properties. We give two algorithms to detect filtration-dominated edges in a bifiltered graph and analyze their complexity. These two algorithms work directly on the bifiltered graph, without first extracting the clique complexes, which are generally much bigger. We present extensive experimental evaluation which shows that in most cases, more than 90% of the edges can be removed. In turn, we demonstrate that this often leads to a substantial speedup, and reduction in the memory usage, of the computational pipeline of multiparameter topological data analysis.
On reducing inconsistency of pairwise comparison matrices below an acceptance threshold
Creators: name: Bozóki, Sándor
name: Fülöp, János
name: Poesz, Attila
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90B50, 90C11

description: A recent work of the authors on the analysis of pairwise comparison matrices that can be made consistent by the modification of a few elements is continued and extended. Inconsistency indices are defined for indicating the overall quality of a pairwise comparison matrix. It is expected that serious contradictions in the matrix imply high inconsistency and vice versa. However, in the 35-year history of the applications of pairwise comparison matrices, only one of the indices, namely CR proposed by Saaty, has been associated to a general level of acceptance, by the well known ten percent rule. In the paper, we consider a wide class of inconsistency indices, including CR, CM proposed by Koczkodaj and Duszak and CI by Peláez and Lamata. Assume that a threshold of acceptable inconsistency is given (for CR it can be 0.1). The aim is to find the minimal number of matrix elements, the appropriate modification of which makes the matrix acceptable. On the other hand, given the maximal number of modifiable matrix elements, the aim is to find the minimal level of inconsistency that can be achieved. In both cases the solution is derived from a nonlinear mixed-integer optimization problem. Results are applicable in decision support systems that allow real time interaction with the decision maker in order to review pairwise comparison matrices.
description: 20 pages
Principled interpolation of Green's functions learned from data
Creators: name: Praveen, Harshwardhan
name: Boulle, Nicolas
name: Earls, Christopher
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We present a data-driven approach to mathematically model physical systems whose governing partial differential equations are unknown, by learning their associated Green's function. The subject systems are observed by collecting input-output pairs of system responses under excitations drawn from a Gaussian process. Two methods are proposed to learn the Green's function. In the first method, we use the proper orthogonal decomposition (POD) modes of the system as a surrogate for the eigenvectors of the Green's function, and subsequently fit the eigenvalues, using data. In the second, we employ a generalization of the randomized singular value decomposition (SVD) to operators, in order to construct a low-rank approximation to the Green's function. Then, we propose a manifold interpolation scheme, for use in an offline-online setting, where offline excitation-response data, taken at specific model parameter instances, are compressed into empirical eigenmodes. These eigenmodes are subsequently used within a manifold interpolation scheme, to uncover other suitable eigenmodes at unseen model parameters. The approximation and interpolation numerical techniques are demonstrated on several examples in one and two dimensions.
title: Openness towards European Law and Cooperation with the Court of Justice Revisited: The Bundesverfassungsgericht Judgment of 21 June 2016 on the OMT Programme
Creators: name: Starita, Massimo
Publisher: name: European Papers (www.europeanpapers.eu)
Year: 2016
Subjects: subject: German Federal Constitutional Court
subject: ultra vires review
subject: CJEU's preliminary rulings
subject: operative parts and reasons
subject: erga omnes effects
subject: CJEU's legal reasoning
subject: legal realism

description: European Papers - A Journal on Law and Integration, 2016 1(2), 395-403
description: I. Introduction. - II. The evolving relationship between the German Federal Constitutional Court and the CJEU under the ultra vires review. - III. The FCC criticism of the CJEU's legal reasoning. - IV. The legal effects of the CJEU's preliminary rulings.
description: The Judgment of the German Federal Constitutional Court (FCC) of 21 June 2016 on the OMT Programme can be considered as the reaffirmation of a recent, less cooperative, approach of this Court towards the CJEU in the ultra vires review procedure. Indeed, while basing its decision on the CJEU's Gauweiler preliminary ruling of 16 June 2015, the FCC rigorously criticizes the legal reasoning followed by the CJEU therein. Moreover, the FCC attributes broad legal effects to Gauweiler, but, in so doing, it strengthens its prerogatives towards the CJEU.
Influence of La and Mn vacancies on the electronic and magnetic properties of LaMnO$_{3}$ thin films grown by pulsed laser deposition
Creators: name: Marozau, Ivan
name: Das, Proloy T.
name: Döbeli, Max
name: Storey, James G.
name: Uribe-Laverde, Miguel A.
name: Das, Saikat
name: Wang, Chennan
name: Rössle, Matthias
name: Bernhard, Christian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: With pulsed laser deposition we have grown c-axis oriented thin films of the nominal composition LaMnO$_{3}$ (LMO) on LSAT(001) substrates. We find that, depending on the oxygen background pressure during growth, the LMO films contain sizeable amounts of La and/or Mn vacancies that strongly influence their electronic and magnetic properties. Specifically, we show that the Mn/La ratio can be systematically varied from 0.92 at 0.11 mbar to 1.09 at 0.30 mbar of oxygen. These cationic vacancies lead to markedly different disorder effects that become most pronounced once the samples are fully oxygenated and thus strongly hole doped. All as-grown and thus slightly oxygen deficient LMO films are ferromagnetic insulators with saturation moments in excess of 2.5 μ$_{B}$ per Mn ion, their transport and optical properties that can be understood in terms of trapped ferromagnetic polarons. Upon oxygen annealing, the most La-deficient films develop a metallic response with an even larger ferromagnetic saturation moment of 3.8 μ$_{B}$ per Mn ion. In contrast, in the oxygenated Mn-deficient films the ferromagnetic order is almost completely suppressed to less than 0.5 μ$_{B}$ per Mn ion and the transport remains insulator-like. We compare our results with the ones that were previously obtained on bulk samples and present an interpretation in terms of the much stronger disorder potential of the Mn vacancies as compared to the La vacancies. We also discuss the implications for the growth of LMO thin films with well-defined physical properties that, for example, are a prerequisite for the study of interface effects in multilayers.