cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum Teleportation with a Class of Non-Gaussian Entangled Resources
Creators: name: Bose, Soumyakanti
name: Kumar, M. Sanjay
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-Gaussian entangled states of light have been found to improve the success of quantum telepor- tation. Earlier works in the literature focussed mainly on two-mode non-Gaussian states generated by de-Gaussification of two-mode squeezed vacuum states. In the current work, we study quan- tum teleportation with a class of non-Gaussian entangled resource states that are generated at the output of a passive beam splitter (BS) with different input single mode non-Gaussian states. In particular, we consider input states that are generated under successive application of squeezing and photon addition/subtraction operations in various orders. We focus on identifying what attributes of the resource states are necessary or sufficient for quantum teleportation (QT). To this end we first evaluate two attributes considered in the literature, viz. squeezed vacuum affinity (SVA) and EPR correlation. While SVA is not non-zero for all two-mode resource states, EPR correlation is neither necessary nor sufficient of QT. We consider yet another attribute, viz. two-mode quadrature squeezing as defined by Simon et. al. [Phys. Rev. A 49, 1567 (1994)]. Our numerical results on the de-Gaussified two-mode squeezed vacuum state as well as the BS generated non-Gaussian states lead us to the conclusion that two-mode quadrature squeezing is a necessary condition for QT, in general. We further demonstrate the plausibility of this conclusion by giving an analytical proof that two-mode quadrature squeezing is a necessary condition for QT in the case of symmetric two-mode Gaussian resource states.
description: 10 pages, 7 figures
title: Merchant Acceptance of Cash and Credit Cards at the Point of Sale
Creators: name: Fung, Ben
name: Huynh, Kim
name: Nield, Kerry
name: Welte, Angelika
Publisher: name: Bank of Canada
Year: 2018

description: Recent data show that the use of credit cards in Canada has been increasing, while the use of cash has been declining. At the same time, only two-thirds of small or medium-sized businesses accept credit cards. To better understand future development of this trend, it is important to study whether a change in merchant fees will increase credit card acceptance and will thus further reduce cash use. In this note, we calculate the level of the merchant fee where a merchant would be indifferent to accepting a credit card or cash payment, using the merchant indifference test. We find that the results are sensitive to the underlying assumptions. Furthermore, we discuss several main issues of applying such a methodology to Canada.
description: D’après de récentes données, l’utilisation au Canada des cartes de crédit a augmenté au détriment de celle de l’argent comptant. Pourtant, seuls les deux tiers des commerçants de petite et moyenne taille acceptent les cartes de crédit. Pour mieux comprendre l’évolution future de cette tendance, il importe de voir si une réduction des frais imposés aux commerçants les incitera à accepter davantage les cartes de crédit, et donc réduira encore plus l’utilisation de l’argent comptant. Dans cette note, nous essayons de déterminer, grâce au test d’indifférence du commerçant, le montant des frais auquel les commerçants n’accordent pas plus de préférence à la carte de crédit qu’à l’argent comptant. Nous constatons que les résultats dépendent des hypothèses de fond. Nous nous penchons en outre sur différents grands enjeux que soulève l’application de cette méthode au Canada.
Broadband Defects Emission and Enhanced Ligand Raman Scattering in 0D Cs3Bi2I9 Colloidal Nanocrystals
Creators: name: Paterno', Giuseppe M.
name: Mishra, Nimai
name: Barker, Alex J.
name: Dang, Zhiya
name: Lanzani, Guglielmo
name: Manna, Liberato
name: Petrozza, Annamaria
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Excitonic 0D and 2D lead-halide perovskites have been recently developed and investigated as new materials for light generation. Here we report broadband (> 1 eV) emission from newly synthesised zero-dimensional (0D) lead-free colloidal Cs3Bi2I9 nanocrystals. We investigate the nature of their emissive states as well as the relative dynamics which are currently hotly debated. In particular, we find that the broadband emission is made by the coexistence of emissive excitons and sub-bandgap emissive trap-states. Remarkably, we observe evidence of enhanced Raman scattering from the ligands when attached to the nanocrystals surface, an effect that we preliminary attribute to strong exciton-ligands electronic coupling in these systems.
Localizing periodicity in near-field images
Creators: name: Fraundorf, P.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show that Bayesian inference, like that used in statistical mechanics, can guide the systematic construction of Fourier dark-field methods for localizing periodicity in near-field (e.g. scanning-tunneling and electron-phase-contrast) images. For crystals in an aperiodic field, the Fourier coefficient Ze^{i phi} combines with a prior estimate for background amplitude B to predict background phase (beta) values distributed with a probability p(beta - phi | Z,phi,B) inversely proportional to the amplitude P of the signal of interest, when this latter is treated as an unknown translation scaled to B.
description: 5 pages (4 figs, 13 refs) RevTeX; apps http://newton.umsl.edu/stei_lab
Additional file 2: of Spatiotemporal characteristics and primary influencing factors of typical dengue fever epidemics in China
Creators: name: Zheng, Lan
name: Ren, Hong-Yan
name: Run-He Shi
name: Lu, Liang
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Pearson correlation analysis of variables in the PRD. (DOCX 19 kb)
Astrocaryum sciophilum Pulle
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Arecales
Arecaceae
Astrocaryum
Astrocaryum sciophilum

description: [145] Astrocaryum sciophilum (Miq.) Pulle
 Enum. Vasc. Pl. Surinam 73 (Pulle 1906). — Bactris sciophila Miq., Natuurk. Verh. Wet. Haarlem, ser. 2, 7: 208 (Miquel 1851).
 NOTE. — Hyperdominant in Amazonia (ter Steege et al. 2020).
VERNACULAR NAMES. — Pa: kwasɨi-muumuuwa, kwaswe-muumuuwa • Ka: mulumulu • Te: mubulu • Wp: mulumulu • Wn: mumu, muumu • Nt: bugu • Cr: mouroumourou • Br: murumuru.
 HERBARIUM DATA (FG). — 25 collections at CAY. Sel. exs.: A.H. Gentry & E.M. Zardini 50232.
INVENTORY DATA (FG). — 1197 trees in 107 plots; Fmax = 19.8 %; dbhinv = 22.3 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on pages 391-392, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Enumeration of rational curves in a moving family of $\mathbb{P}^2$
Creators: name: Mukherjee, Ritwik
name: Paul, Anantadulal
name: Singh, Rahul Kumar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14N35, 14J45

description: We obtain a recursive formula for the number of rational degree $d$ curves in $\mathbb{P}^3$, whose image lies in a $\mathbb{P}^2$, passing through $r$ lines and $s$ points, where $r + 2s = 3d+2$. This can be viewed as a family version of the classical question of counting rational curves in $\mathbb{P}^2$. We verify that our numbers are consistent with those obtained by T. Laarakker, where he studies the parallel question of counting $δ$-nodal degree $d$ curves in $\mathbb{P}^3$ whose image lies inside a $\mathbb{P}^2$. Our numbers give evidence to support the conjecture, that the polynomials obtained by T. Laarakker are enumerative when $d \geq 1 + [\fracδ{2}]$, which is analogous to the {G}öttsche threshold for counting nodal curves in $\mathbb{P}^2$.
description: 10 pages. Comments are welcome
Activated barrier crossing dynamics of a Janus particle carrying cargo
Creators: name: Debnath, Tanwi
name: Ghosh, Pulak Kumar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We numerically study the escape kinetics of a self-propelled Janus particle, carrying a cargo, from a meta-stable state. We assume that the cargo is attached to the Janus particle by a flexible harmonic spring. We take into account the effect of velocity field, created in the fluid due to movements of dimer's components, by considering space-dependent diffusion tensor (Oseen tensor). Our simulation results show that the synchronization between barrier crossing events and rotational relaxation process can enhance escape rate to a large extent. Also, the load carrying capability of a Janus particle is largely controlled by its rotational dynamics and self-propulsion velocity. Moreover, the hydrodynamic interaction, conspicuously, enhances the escape rate of the Janus-cargo dimer. The most of the important features in escape kinetics have been justified based on the analytic arguments.
description: 10 pages, 6 figures
Dynamic Exponent of t-J and t-J-W Model
Creators: name: Tsunetsugu, Hirokazu
name: Imada, Masatoshi
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Drude weight of optical conductivity is calculated at zero temperature by exact diagonalization for the two-dimensional t-J model with the two-particle term, $W$. For the ordinary t-J model with $W$=0, the scaling of the Drude weight $D \propto δ^2$ for small doping concentration $δ$ is obtained, which indicates anomalous dynamic exponent $z$=4 of the Mott transition. When $W$ is switched on, the dynamic exponent recovers its conventional value $z$=2. This corresponds to an incoherent-to-coherent transition associated with the switching of the two-particle transfer.
description: LaTeX, JPSJ-style, 4 pages, 5 eps files, to appear in J. Phys. Soc. Jpn. vol.67, No.6 (1998)
title: Central Bank Digital Currency: Motivations and Implications
Creators: name: Engert, Walter
name: Fung, Ben S. C.
Publisher: name: Bank of Canada
Year: 2017

description: The emergence of digital currencies such as Bitcoin and the underlying blockchain and distribution ledger technology have attracted significant attention. These developments have raised the possibility of considerable impacts on the financial system and perhaps the wider economy. This paper addresses the question of whether a central bank should issue digital currency that could be used by the general public. It begins by discussing the possible motivations for a central bank to issue a digital currency. The paper then sets out a benchmark central bank digital currency (CBDC) with features that are similar to cash. The implications of such a digital currency are explored, focusing on central bank seigniorage, monetary policy, the banking system and financial stability, and payments. Finally, a CBDC that differs from the benchmark digital currency in a significant way is considered.
description: L’arrivée des monnaies numériques comme le bitcoin ainsi que la chaîne de blocs ou technologie du grand livre partagé sous-jacente suscitent beaucoup d’intérêt. Ces évolutions laissent entrevoir la possibilité d’incidences notables sur le système financier et peut-être même sur l’ensemble de l’économie. Dans la présente étude, nous nous penchons sur la question de savoir si les banques centrales devraient émettre une monnaie numérique à l’intention du grand public. D’abord, nous discutons des raisons qui pourraient les motiver à le faire. Ensuite, nous décrivons une monnaie numérique de référence émise par une banque centrale dont les caractéristiques se rapprochent de celles de l’argent comptant. Nous examinons les conséquences d’une telle monnaie, notamment pour les recettes de seigneuriage de la banque centrale, la politique monétaire, le système bancaire, la stabilité financière et les paiements. Enfin, nous envisageons une monnaie numérique émise par une banque centrale qui serait considérablement différente de la monnaie numérique de référence.
Astrocaryum vulgare Mart.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Arecales
Arecaceae
Astrocaryum
Astrocaryum vulgare

description: [146] Astrocaryum vulgare Mart.
 Hist. Nat. Palm. 2 (3): 74 [after 13 Apr. 1824] (Martius 1824).
 Astrocaryum awarra de Vriese, Jaarb. Kon. Ned. Maatsch. Aanm. Tuinb. 1848: 12 (de Vriese 1848).
 Astrocaryum guianense Splitg. ex Mart., Hist. Nat. Palm. 3 (10): 323 [Jan.-July 1853] (Martius 1853).
 Astrocaryum segregatum Drude, Fl. Bras. [Martius] 3 (2): 382 [1 Nov. 1881] (Drude 1881).
 Astrocaryum tucumoides Drude, Fl. Bras. [Martius] 3 (2): 381 [1 Nov. 1881] (Drude 1881).
 NOTE. — Incipiently domesticated by pre-Columbian Amerindians (Levis et al. 2017).
VERNACULAR NAMES. — Pa: wahatwi • Ka: awala, awala’i • Te: dzawala • Wp: awala • Wn: awala • Nt: awaa • Cr: awara, wara • Br: tucumã-do-Pará.
 HERBARIUM DATA (FG). — 6 collections at CAY. Sel. exs.: J.-J. de Granville 8340.
SIZE. — Up to 20 cm dbh (Granville & Gayot 2014).
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 392, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Bound-State Instability of the Chiral Luttinger Liquid in One-Dimension
Creators: name: Ho, A. F.
name: Coleman, P.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have developed a new boot-strap method for solving a class of interacting one-dimensional chiral fermions. The conventional model for interacting right-moving electrons with spin has an SO(4) symmetry, and can be written as four interacting Majorana fermions, each with the same velocity. We have found a method for solving some cases when the velocities of these Majorana fermions are no longer equal. We demonstrate in some detail the remarkable result that corrections to the non skeleton self-energy identically vanish for these models, and this enables us to solve them exactly. For the cases where the model can be solved by bosonization, our method can be explicitly checked. However, we are also able to solve some new cases where the excitation spectrum differs qualitatively from a Luttinger liquid. Of particular interest, is the so-called SO(3) model, where a triplet of Majorana fermions moving at one velocity, interact with a single Majorana fermion moving at another velocity. We show using our method, that a sharp bound (or anti-bound) state splits off from the original Luttinger liquid continuum, cutting off the X-ray singularity to form a broad incoherent excitation with a lifetime that grows linearly with frequency.
description: 12 pages, 12 figs. Long version of cond-mat/9812441
พระคิลานุปัฏฐาก: บทบาทการดูแลสุขภาวะพระสงฆ์
Creators: name: พระอธิการเฉลิม กนฺตสาโร
Publisher: name: มหาวิทยาลัยมหาจุฬาลงกรณราชวิทยาลัย วิทยาเขตนครสวรรค์
Year: 2022
Subjects: พระคิลานุปัฏฐาก
บทบาทการดูแล
สุขภาวะพระสงฆ์

description: The Journal of Research and Academics, 5, 2, 275-284
title: Product Sophistication and the Slowdown in Chinese Export Growth
Creators: name: Kruger, Mark
name: Steingress, Walter
name: Thanabalasingam, Sri
Publisher: name: Bank of Canada
Year: 2017

description: Chinese real export growth decelerated considerably during the last decade. This paper argues that the slowdown largely resulted from China moving to a more sophisticated mix of exports: China produced more sophisticated goods over which it had pricing power instead of producing greater volumes of less sophisticated products. Indeed, we show that the share of highly sophisticated products in Chinese exports increased steadily over time and that Chinese exports became less price sensitive, suggesting increased pricing power. Further, a decomposition of China’s market share gains shows that China continues to gain market share despite exporting products with higher-than-average world prices. China’s continuous gain in global export market share suggests that its export machine is far from broken.
description: La croissance des exportations réelles de la Chine a décéléré de façon significative au cours des dix dernières années. Notre analyse démontre que ce ralentissement s’explique en grande partie par la présence de biens plus sophistiqués dans les exportations chinoises. En effet, la Chine a produit des biens plus sophistiqués pour lesquels elle est en mesure d’imposer ses prix au lieu de fabriquer de grands volumes de biens moins sophistiqués. En fait, nous montrons que la part des produits très sophistiqués parmi les exportations chinoises a augmenté continuellement au fil du temps, et que les exportations de la Chine sont devenues moins sensibles aux mouvements des prix, phénomène qui indiquerait une capacité accrue du pays d’imposer ses prix. Lorsqu’on décompose les gains de parts de marché de la Chine, on constate qu’ils se poursuivent même si les prix des produits exportés sont plus élevés que la moyenne internationale. La hausse constante des parts de marché de la Chine tend à montrer que la machine à exporter du pays est loin d’être en panne.
The scaling evolution of cosmological constant
Creators: name: Shapiro, Ilya L.
name: Sola, Joan
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In quantum field theory the parameters of the vacuum action are subject to renormalization group running. In particular, the ``cosmological constant'' is not a constant in a quantum field theory context, still less should be zero. In this paper we continue with previous work, and derive the particle contributions to the running of the cosmological and gravitational constants in the framework of the Standard Model in curved space-time. At higher energies the calculation is performed in a sharp cut off approximation. We assess, in two different frameworks, whether the scaling dependences of the cosmological and gravitational constants spoil primordial nucleosynthesis. Finally, the cosmological implications of the running of the cosmological constant are discussed.
description: 25 pages, 1 figure using axodraw. Extended version. The title and the part of the discussion concerning a gravitational energy scale modified. The new section about the role of the cosmological constant in the anomaly-induced inflation added. Misprint in one reference corrected
Uncomputability and complexity of quantum control
Creators: name: Bondar, Denys I.
name: Pechen, Alexander N.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In laboratory and numerical experiments, physical quantities are known with a finite precision and described by rational numbers. Based on this, we deduce that quantum control problems both for open and closed systems are in general not algorithmically solvable, i.e., there is no algorithm that can decide whether dynamics of an arbitrary quantum system can be manipulated by accessible external interactions (coherent or dissipative) such that a chosen target reaches a desired value. This conclusion holds even for the relaxed requirement of the target only approximately attaining the desired value. These findings do not preclude an algorithmic solvability for a particular class of quantum control problems. Moreover, any quantum control problem can be made algorithmically solvable if the set of accessible interactions (i.e., controls) is rich enough. To arrive at these results, we develop a technique based on establishing the equivalence between quantum control problems and Diophantine equations, which are polynomial equations with integer coefficients and integer unknowns. In addition to proving uncomputability, this technique allows to construct quantum control problems belonging to different complexity classes. In particular, an example of the control problem involving a two-mode coherent field is shown to be NP-hard, contradicting a widely held believe that two-body problems are easy.
description: 10 pages, 1 figure [expanded explanations]
Quantum cellular automata for quantum error correction and density classification
Creators: name: Guedes, Thiago L. M.
name: Winter, Don
name: Müller, Markus
Publisher: name: Forschungzentrum Jülich
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: arXiv (2023). doi:10.48550/ARXIV.2309.03608
description: Quantum cellular automata are alternative quantum-computing paradigms to quantum Turing machines and quantum circuits. Their working mechanisms are inherently automated, therefore measurement free, and they act in a translation invariant manner on all cells/qudits of a register, generating a global rule that updates cell states locally, i.e., based solely on the states of their neighbors. Although desirable features in many applications, it is generally not clear to which extent these fully automated discrete-time local updates can generate and sustain long-range order in the (noisy) systems they act upon. In special, whether and how quantum cellular automata can perform quantum error correction remain open questions. We close this conceptual gap by proposing quantum cellular automata with quantum-error-correction capabilities. We design and investigate two (quasi-)one dimensional quantum cellular automata based on known classical cellular-automata rules with density-classification capabilities, namely the local majority voting and the two-line voting. We investigate the performances of those quantum cellular automata as quantum-memory components by simulating the number of update steps required for the logical information they act upon to be afflicted by a logical bit flip. The proposed designs pave a way to further explore the potential of new types of quantum cellular automata with built-in quantum error correction capabilities.
description: Published by arXiv
Comparing the anomalous Hall effect and the magneto-optical Kerr effect through antiferromagnetic phase transitions in Mn$_3$Sn
Creators: name: Balk, A. L.
name: Sung, N. H.
name: Thomas, S. M.
name: Rosa, P. F. S.
name: McDonald, R. D.
name: Thompson, J. D.
name: Bauer, E. D.
name: Ronning, F.
name: Crooker, S. A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In the non-collinear antiferromagnet Mn$_3$Sn, we compare simultaneous measurements of the anomalous Hall effect (AHE) and the magneto-optical Kerr effect (MOKE) through two magnetic phase transitions: the high-temperature paramagnetic/antiferromagnetic phase transition at the Néel temperature ($T_N \approx$420~K), and a lower-temperature incommensurate magnetic ordering at $T_1 \approx$270~K. While both the AHE and MOKE are sensitive to the same underlying symmetries of the antiferromagnetic non-collinear spin order, we find that the transition temperatures measured by these two techniques unexpectedly differ by approximately 10~K. Moreover, the applied magnetic field at which the antiferromagnetic order reverses is significantly larger when measured by MOKE than when measured by AHE. These results point to a difference between the bulk and surface magnetic properties of Mn$_3$Sn.
description: 5 pages, 3 figures; published in APL
SHAXS MA'NAVIY KAMOLOTINI MILLIY QADRIYATLAR ASOSIDA SHAKLLANTIRISHNING AHAMIYATI
Creators: name: Xomidov, Muhammadzakiy
Publisher: name: Zenodo
Year: 2024

description: In an era marked by globalization and cultural convergence, the preservation and nurturing of personal spiritual development rooted in national values stand as pillars of societal resilience and identity. The interplay between spirituality and cultural heritage forms a fundamental aspect of human existence, shaping individual perceptions, behaviors, and aspirations. As societies navigate the complexities of modernity, understanding the intrinsic importance of fostering this symbiotic relationship becomes paramount.
Topological defects of dipole patchy particles on a spherical surface
Creators: name: Lieu, Uyen Tu
name: Yoshinaga, Natsuhiko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the assembly of the dipole-like patchy particles confined to a spherical surface by Brownian dynamics simulations. The surface property of the spherical particle is described by the spherical harmonic $Y_{10}$, and the orientation of the particle is defined as the uniaxial axis. On a flat space, we observe a defect-free square lattice with nematic order. On a spherical surface, defects appear due to the topological constraint. As for the director field, four defects of winding number $+1/2$ are observed, satisfying the Euler characteristic. We have found many configurations of the four defects lying near a great circle. Regarding the positional order for the square lattice, eight grain boundary scars proliferate linearly with the sphere size. The positions and orientations of the eight grain boundary scars are strongly related to the four $+1/2$ defect cores.
description: 9 pages, 10 figures
The Hubbard chain at finite temperatures: ab initio calculations of Tomonaga-Luttinger liquid properties
Creators: name: Juttner, G.
name: Klumper, A.
name: Suzuki, J.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a novel treatment of finite temperature properties of the one-dimensional Hubbard model. Our approach is based on a Trotter-Suzuki mapping utilizing Shastry's classical model and a subsequent investigation of the quantum transfer matrix. We derive non-linear integral equations for three auxiliary functions which have a clear physical interpretation of elementary excitations of spin type and charge excitations in lower and upper Hubbard bands. This allows for a transparent analytical study of certain limiting cases as well as for precise numerical investigations. We present data for the specific heat, magnetic and charge susceptibilities for various particle densities and coupling strengths U. The structure exposed by these curves is discussed in terms of the elementary charge and spin excitations. Special emphasis is placed on the study of the low-temperature behavior within our ab initio approach confirming the scaling predictions by Tomonaga-Luttinger liquid theory. In addition we make contact with the ``dressed energy'' formalism established for the analysis of ground state properties.
description: 33 pages including 24 Postscript figures
On the energy spectrum of rapidly rotating forced turbulence
Creators: name: Sharma, Manohar K.
name: Verma, Mahendra K.
name: Chakraborty, Sagar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper, we investigate the statistical features of the fully developed, forced, rapidly rotating, {turbulent} system using numerical simulations, and model {the} energy {spectrum} that {fits} well with the numerical data. Among the wavenumbers ($k$) larger than the Kolmogorov dissipation wavenumber, the energy is distributed such that the suitably non-dimensionized energy spectrum is ${\bar E}({\bar k})\approx \exp(-0.05{\bar k})$, where overbar denotes appropriate non-dimensionalization. {For the wavenumbers smaller than that of forcing, the energy in a horizontal plane is much more than that along the vertical rotation-axis.} {For} such wavenumbers, we find that the anisotropic energy spectrum, $E(k_\perp,k_\parallel)$ follows the power law scaling, $k_\perp^{-5/2}k_\parallel^{-1/2}$, where `$\perp$' and `$\parallel$' respectively refer to the directions perpendicular and parallel to the rotation axis; this result is in line with the Kuznetsov--Zakharov--Kolmgorov spectrum predicted by the weak inertial-wave turbulence theory for the rotating fluids.
description: 11 pages, 7 figures, accepted in Physics of FLuids
Additional file 1: of Spatiotemporal characteristics and primary influencing factors of typical dengue fever epidemics in China
Creators: name: Zheng, Lan
name: Ren, Hong-Yan
name: Run-He Shi
name: Lu, Liang
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Multilingual abstracts in the five official working languages of the United Nations. (PDF 225 kb)
de Sitter Brane Gravity: from Close-Up to Panorama
Creators: name: Parikh, Maulik K.
name: Solodukhin, Sergey N.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We find explicitly the induced graviton propagator on de Sitter branes embedded in various five-dimensional spacetimes; de Sitter branes in AdS and Minkowski space are particular cases. By studying the structure of the momentum-space propagator, we are able to extract interesting physics, much of which is qualitatively different from that of flat branes. We find that 1) there can be a set of graviton-like particles which mediate brane gravity at different scales; 2) localized gravity can exist even on de Sitter branes in Minkowski space; 3) Kaluza-Klein modes also contribute to conventional 4-D gravity for de Sitter branes in AdS; and 4) Newton's constant can vary considerably with scale. We comment on the implications for the effective cosmological constant.
description: 15 pages, latex, 1 figure; added appendix of useful Legendre formulas, minor modifications, more references, to appear in Phys. Lett. B
Cocos nucifera L.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Arecales
Arecaceae
Cocos
Cocos nucifera

description: [148] Cocos nucifera L.
 Sp. Pl. 2: 1188 [1 May 1753] (Linnaeus 1753). — Calappa nucifera (L.) Kuntze, Revis. Gen. Pl. 2: 982 [5 Nov. 1891] (Kuntze 1891).
 Palma cocos Mill., Gard. Dict., ed. 8, n. 2 [16 Apr. 1768] (Miller 1768).
 Cocos mamillaris Blanco, Fl. Filip. [F.M. Blanco] 722 (Blanco 1837). Cocos indica Royle, Ill. Bot. Himal. Mts.: 395 (Royle 1840).
 Cocos nana Griff., Not. Pl. Asiat. 3: 166 (Griffith 1851).
 Cocos nucifera var. synphyllica Becc., Agric. Colon. 10: 586 (Beccari 1916).
 Diplothemium henryanum F.Br., Bull. Bernice P. Bishop Mus. 84: 128 (Brown 1931).
NOTE. — A species native to the South-West Pacific, introduced and naturalised on all tropical shores.
VERNACULAR NAMES. — Pa: koko • Ka: koko, kokoepu • Te: koko • Wp: koko • Wn: koko • Nt: kokonoto bon, kokoonto bon • Fr: cocotier • Br: cóco, coqueiro.
 HERBARIUM DATA (FG). — 2 collections at CAY. Sel. exs.: J.-J. de Granville 7203, dbh 25-28 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 392, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
A greedy non-intrusive reduced order model for shallow water equations
Creators: name: Dutta, Sourav
name: Farthing, Matthew W.
name: Perracchione, Emma
name: Savant, Gaurav
name: Putti, Mario
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: 41A05, 65D05, 65M60

description: In this work, we develop Non-Intrusive Reduced Order Models (NIROMs) that combine Proper Orthogonal Decomposition (POD) with a Radial Basis Function (RBF) interpolation method to construct efficient reduced order models for time-dependent problems arising in large scale environmental flow applications. The performance of the POD-RBF NIROM is compared with a traditional nonlinear POD (NPOD) model by evaluating the accuracy and robustness for test problems representative of riverine flows. Different greedy algorithms are studied in order to determine a near-optimal distribution of interpolation points for the RBF approximation. A new power-scaled residual greedy (psr-greedy) algorithm is proposed to address some of the primary drawbacks of the existing greedy approaches. The relative performances of these greedy algorithms are studied with numerical experiments using realistic two-dimensional (2D) shallow water flow applications involving coastal and riverine dynamics.
BC-SIM-TR-040 - EGSE ICO#5 Report
Creators: name: Politi, Romolo
name: Simioni, Emanuele
name: Zusi, Michele
name: Cremonese, Gabriele
name: Capaccioni, Fabrizio
name: Doressoundiram, Alain
name: Palumbo, Pasquale
name: Re, Cristina
name: Vincendon, Mathieu
Publisher: name: Zenodo
Year: 2024
Subjects: SIMBIO-SYS
BepiColombo
Ground Segment
Space Instrumentation
Instrument CheckOut

description: In this document we will describe all the tests performed during the fifth Instrument Checkout (ICO#05B) recovery for the Spectrometers and Imagers for MPO BepiColombo Integrated Observatory SYStem (SIMBIO-SYS). The checkout session was performed June 14th 2021. For each test it will be presented the pipeline report and, where necessary, a discussion on the detected anomalies.
Structure and equation-of-state of a disordered system of shape anisotropic patchy particles
Creators: name: Wagner, Susanne
name: Kahl, Gerhard
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a new two dimensional model for elliptic (i.e., shape anisotropic) patchy colloids, where the impenetrable core of the particles is decorated on its co-)vertices by Kern-Frenkel type of patches. Using (i) well-documented criteria for the overlap of the undecorated ellipses and (ii) proposing new criteria that give evidence if the patchy regions of two particles interact we perform extensive Monte Carlo simulations in the NPT ensemble. Considering elliptic particles of aspect ratios \{kappa} = 2, 4, and 6 with two patches located at the co-vertices and choosing representative values for the temperature we study on a semi-quantitative level the emerging disordered phases in terms of snapshots and radial distribution functions and present results for the equation-of-state.
Single-electron transistor effect in a two-terminal structure
Creators: name: Vyshenski, S. V.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A peculiarity of the single-electron transistor effect makes it possible to observe this effect even in structures lacking a gate electrode altogether. The proposed method can be useful for experimental study of charging effects in structures with an extremely small central island confined between tunnel barriers like a nanometer-sized quantum dot or a macromolecule probed with a tunneling microscope), where it is impossible to provide a gate electrode for control of the tunnel current.
description: 5 pages, 2 figures
Recensione a A. Tsing, The Mushroom at the End of the World
Creators: name: Mariaenrica Giannuzzi
Publisher: name: Zenodo
Year: 2019

description: Science is a translation machine. Not only because protocols and zealous technicians select the parts to be integrated into a unified system of knowledge. Science is also translation because its insights are drawn from diverse ways of life. (217) Anna Lowenhaupt Tsing develops a science of the ecologies of encounter. This science looks at every form of life across every link of the supply chain. Every link is a source of surplus; and every link is valorized in the translation from one form of life into another. This science behaves as unresolved translation. Interpreting nature, as in the case of the Japanese matsutake science of Shiho Satsuka, requires training with both the machinic parts and “the eruption of difference.” Adventures of difference are at the core of Tsing’s groundbreaking work The Mushroom at the End of the World: On the Possibilities of Life in Capitalist Ruins. Tsing’s biocentrism decenters the tales of the anthropos. The matsutake mushroom is the nonhuman protagonist. The nonhuman lens allows multiple transformative commodifications to emerge, and to reveal how a commodity organizes life-cycles across the species. Or better yet, how life organizes itself around patches of local semantics. Tsing revels in the messiness of science. Here the mushroom plays as a metaphor for unpredictable insurgencies. A delicacy on the Japanese and international market, the matsutake is mostly picked in Oregon and other similarly deforested areas. This labor is carried out by Southern Asian immigrants, as a post-modern manifestation of freedom, and a side-job. The entanglements of markets, rituals, the stories of pickers, environmental histories, laws, philosophies and everyday life are so tight, that the book enhances a morphology of worldhistorical processes.
Lateral photocurrent spreading in single quantum well infrared photodetectors
Creators: name: Ershov, Maxim
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Lateral physical effects in single quantum well infrared photodetectors (SQWIPs) under non-uniform illumination over detector area are considered. These effects are due mainly to the in-plane transport of the photoinduced charge in the QW. The length of the lateral photocurrent spreading is determined by the in-plane conductivity of the carriers in the QW and characteristic time of the QW recharging, and can be as large as 10-10000 mkm. Closed-form analytical expressions for SQWIP responsivity for modulated infrared signal and modulation transfer function are obtained. Possible techniques to suppress lateral photocurrent spreading are discussed.
description: Latex (Revtex), 3 pages, 1 ps figure. To be published in Appl. Phys. Lett
THE SOLUTION OF NONLINEAR FORWARD LOOK RATIONAL EXPECTATIONS MODELS
THE SOLUTION OF NONLINEAR FORWARD LOOK RATIONAL EXPECTATIONS MODELS
Creators: name: Jurriens, P
name: Jurriens, Y
name: Jurriens, P
name: Jurriens, Y
Publisher: name: Unknown
Year: 1986
Subjects: subject: Research Methods/ Statistical Methods
subject: rational expectations models
subject: multiple-shooting
subject: algorithm

description: In this paper a solution technique is developed for non-linear rational expectation models. In models with current expectations of future variables we show that shooting can only be applied if the model is solved simultaneously over these future periods. Our algorith provides a solution path for this problem.
Additional file 1: of Increased expression of cancer-associated fibroblast markers at the invasive front and its association with tumor-stroma ratio in colorectal cancer
Creators: name: Sandberg, Tessa
name: Stuart, Maaike
name: Oosting, Jan
name: Tollenaar, Rob
name: Sier, Cornelis
name: Mesker, Wilma
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer

description: Figure S1. Emission spectrum of the extracellular matrix-related and immune-related fibroblast markers used for spectral unmixing and representation of the single markers. Figure S2. Workflow of the measurement and analysis of the immunofluorescence staining. Figure S3. Western blot and immunohistochemical staining of fibroblast activated protein (FAP). Table S1. Patient characteristics of the LUMC cohort and stage III cohort. Table S2. Number and proportion of tumors expressing the different stromal markers in the tumor centre and at the invasive part following immunofluorescent quantification. (DOCX 4828 kb)
Photon Green's function and the Casimir energy in a medium
Creators: name: Klich, Israel
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A new expansion is established for the Green's function of the electromagnetic field in a medium with arbitrary $ε$ and $μ$. The obtained Born series are shown to consist of two types of interactions - the usual terms (denoted $\cal P$) that appear in the Lifshitz theory combined with a new kind of terms (which we denote by $\cal Q$) associated with the changes in the permeability of the medium. Within this framework the case of uniform velocity of light ($εμ={\rm const}$) is studied. We obtain expressions for the Casimir energy density and the first non-vanishing contribution is manipulated to a simplified form. For (arbitrary) spherically symmetric $μ$ we obtain a simple expression for the electromagnetic energy density, and as an example we obtain from it the Casimir energy of a dielectric-diamagnetic ball. It seems that the technique presented can be applied to a variety of problems directly, without expanding the eigenmodes of the problem and using boundary condition considerations.
Rational Cuspidal Curves in a moving family of $\mathbb{P}^2$
Creators: name: Mukherjee, Ritwik
name: Singh, Rahul Kumar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 14N35, 14J45

description: In this paper we obtain a formula for the number of rational degree d curves in $\mathbb{P}^3$ having a cusp, whose image lies in a $\mathbb{P}^2$ and that passes through $r$ lines and $s$ points (where $r + 2s = 3d + 1$). This problem can be viewed as a family version of the classical question of counting rational cuspidal curves in $\mathbb{P}^2$, which has been studied earlier by Z. Ran, R. Pandharipande and A. Zinger. We obtain this number by computing the Euler class of a relevant bundle and then finding out the corresponding degenerate contribution to the Euler class. The method we use is closely based on the method followed by A. Zinger and I. Biswas, S. D'Mello, R. Mukherjee and V. Pingali. We also verify that our answer for the characteristic numbers of rational cuspidal planar cubics and quartics is consistent with the answer obtained by N. Das and the first author, where they compute the characteristic number of $δ$-nodal planar curves in $\mathbb{P}^3$ with one cusp (for $δ\leq 2$).
description: 13 pages. Comments are welcome
title: Understanding the Time Variation in Exchange Rate Pass-Through to Import Prices
Creators: name: Cunningham, Rose
name: Friedrich, Christian
name: Hess, Kristina
name: Kim, Min Jae
Publisher: name: Bank of Canada
Year: 2017

description: In this paper, we analyze the presence of time variation in the pass-through from the nominal effective exchange rate to import prices for 24 advanced economies over the period 1995–2015. In line with earlier studies in the literature, we find substantial heterogeneity in the level of exchange rate pass-through across countries. But, in addition, we show that the dynamics of exchange rate pass-through also differ across countries. Potential explanations for this observation could be of a country-specific nature or could relate to differences in the composition or transmission of global shocks across countries. We then investigate the role of global demand shocks as potential determinants of exchange rate pass-through dynamics in seven advanced economies. We conduct this analysis by running a set of instrumental variable regressions to quantify the contemporaneous exchange rate pass-through that arises from different shocks. Out of the global demand shocks that we examine, we find that oil demand shocks, in particular, are associated with a relatively higher exchange rate pass-through to import prices, while US fiscal policy shocks appear to have the lowest impact.
description: Dans cette étude, nous analysons la présence de variations temporelles dans la transmission des variations du taux de change effectif nominal aux prix des importations pour 24 économies avancées, au cours de la période 1995-2015. À l’instar des études de la littérature publiées précédemment, nous constatons une importante hétérogénéité dans le degré de transmission des variations du taux de change au sein de divers pays. Cependant, nous montrons aussi que la dynamique de cette transmission diffère d’un pays à l’autre. Cette observation pourrait s’expliquer par des facteurs propres à chaque pays ou par des différences dans la composition des chocs économiques mondiaux ou leur transmission entre les pays. Nous nous penchons ensuite sur le rôle des chocs de demande mondiaux en tant que déterminants potentiels de la dynamique de la transmission des variations du taux de change dans sept économies avancées. Nous effectuons cette analyse au moyen d’un ensemble de régressions utilisant des variables instrumentales pour quantifier le degré de transmission actuel des mouvements de change découlant de différents chocs. Parmi les chocs de demande mondiaux que nous examinons, nous découvrons que les chocs de la demande de pétrole, plus particulièrement, sont associés à un degré de transmission relativement élevé des variations du taux de change aux prix des importations, tandis que les chocs liés à la politique budgétaire des États-Unis semblent avoir l’incidence la plus faible.