cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
New York Times Upshot/Siena College: October 2018 New York 01 Poll
Creators: name: New York Times
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Likelihood of voting in 2018 election (2); opinion of various public figures (2); New York Congressional District 01 (1); Democratic Candidate Perry Gershon (1); Republican Candidate Lee Zeldin (1); vote for Democrat/Republican for Congress (1); respondent would like Democrats/Republicans to control House of Representatives (1); President Donald Trump job performance (1); support/oppose positions on various issues (3); prefer representative in Congress to support/serve as check on Trump (1); Supreme Court nominee Brett Kavanaugh sexual assault allegations (1); political partisanship (1).
Optical control of an individual Cr spin in a semiconductor quantum dot
Creators: name: Besombes, L.
name: Boukari, H.
name: Tiwari, V.
name: Lafuente-Sampietro, A.
name: Kuroda, S.
name: Makita, K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate that the spin of a Cr atom in a quantum dot (QD) can be controlled optically and we discuss the main properties of this single spin system. The photoluminescence of individual Cr-doped QDs and their evolution in magnetic field reveal a large magnetic anisotropy of the Cr spin induced by local strain. This results in a splitting of the Cr spin states and in a thermalization on the lower energy states states S$_z$=0 and S$_z$=$\pm$1. The magneto-optical properties of Cr-doped QDs can be modelled by an effective spin Hamiltonian including the spin to strain coupling and the influence of the QD symmetry. We also show that a single Cr spin can be prepared by resonant optical pumping. Monitoring the intensity of the resonant fluorescence of the QD during this process permits to probe the dynamics of the optical initialization of the spin. Hole-Cr flip-flops induced by an interplay of the hole-Cr exchange interaction and the coupling with acoustic phonons are the main source of relaxation that explains the efficient resonant optical pumping. The Cr spin relaxation time is measured in the $μs$ range. We evidence that a Cr spin couples to non-equilibrium acoustic phonons generated during the optical excitation inside or near the QD). Finally we show that the energy of any spin state of an individual Cr atom can be independently tuned by a resonant single mode laser through the optical Stark effect. All these properties make Cr-doped QDs very promising for the development of hybrid spin-mechanical systems where a coherent mechanical driving of an individual spin in an oscillator is required.
description: arXiv admin note: text overlap with arXiv:1606.04221, arXiv:1609.08829
Towards quantum gravity with neural networks: Solving the quantum Hamilton constraint of U(1) BF theory
Creators: name: Sahlmann, Hanno
name: Sherif, Waleed
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In the canonical approach of loop quantum gravity, arguably the most important outstanding problem is finding and interpreting solutions to the Hamiltonian constraint. In this work, we demonstrate that methods of machine learning are in principle applicable to this problem. We consider $U(1)$ BF theory in 3 dimensions, quantized with loop quantum gravity methods. In particular, we formulate a master constraint corresponding to Hamilton and Gauss constraints using loop quantum gravity methods. To make the problem amenable for numerical simulation we fix a graph and introduce a cutoff on the kinematical degrees of freedom, effectively considering $U_q(1)$ BF theory at a root of unity. We show that the Neural Network Quantum State (NNQS) ansatz can be used to numerically solve the constraints efficiently and accurately. We compute expectation values and fluctuations of certain observables and compare them with exact results or exact numerical methods where possible. We also study the dependence on the cutoff.
description: 43 pages, 12 figures. Version now identical to the one in Class. Quantum Gravity
A note on the ampleness of numerically positive log canonical and anti-log canonical divisors
Creators: name: Fukuda, Shigetaka
Publisher: name: arXiv
Year: 2003
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E30

description: In this short note, we consider the conjecture that the log canonical divisor (resp. the anti-log canonical divisor) $K_X + Δ$ (resp. $-(K_X + Δ)$) on a pair $(X, Δ)$ consisting of a complex projective manifold $X$ and a reduced simply normal crossing divisor $Δ$ on $X$ is ample if it is numerically positive. More precisely, we prove the conjecture for $K_X + Δ$ with $Δ\neq 0$ in dimension 4 and for $-(K_X + Δ)$ with $Δ\neq 0$ in dimension 3 or 4.
description: 5 pages, LaTeX2e, the former title ``A note on log canonical divisors" changed
Single-Shot Characterization of High Transformer Ratio Wakefields in Nonlinear Plasma Acceleration
Creators: name: Roussel, Ryan
name: Andonian, Gerard
name: Lynn, Walter
name: Sanwalka, Kunal
name: Robles, River
name: Hansel, Claire
name: Deng, Aihua
name: Lawler, Gerard
name: Rosenzweig, James
Publisher: name: arXiv
Year: 2019
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Plasma wakefields can enable very high accelerating gradients for frontier high energy particle accelerators, in excess of 10 GeV/m. To overcome limits on total acceleration achievable, specially shaped drive beams can be used in both linear and nonlinear plasma wakefield accelerators (PWFA), to increase the transformer ratio, implying that the drive beam deceleration is minimized relative to acceleration obtained in the wake. In this Letter, we report the results of a nonlinear PWFA, high transformer ratio experiment using high-charge, longitudinally asymmetric drive beams in a plasma cell. An emittance exchange process is used to generate variable drive current profiles, in conjunction with a long (multiple plasma wavelength) witness beam. The witness beam is energy-modulated by the wakefield, yielding a response that contains detailed spectral information in a single-shot measurement. Using these methods, we generate a variety of beam profiles and characterize the wakefields, directly observing beam-loaded transformer ratios up to R=7.8. Furthermore, a spectrally-based reconstruction technique, validated by 3D particle-in-cell simulations, is introduced to obtain the drive beam current profile from the decelerating wake data.
Raymunida bellior
Creators: name: Baba, Keiji
name: Macpherson, Enrique
name: Poore, Gary C. B.
name: Ahyong, Shane T.
name: Bermudez, Adriana
name: Cabezas, Patricia
name: Lin, Chia-Wei
name: Nizinski, Martha
name: Rodrigues, Celso
name: Schnabel, Kareen E.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Galatheidae
Raymunida
Raymunida bellior

description: Raymunida bellior (Miyake & Baba, 1967)
 Munida bellior Miyake & Baba, 1967b: 216, figs 3, 4 (Sagami Bay, 80–190 m). — Baba, 1988: 90 (between Masbate and Leyte, 209 m).
 Raymunida bellior. — Macpherson & Machordom, 2001: 698, fig. 1A–D (reexamination of material reported by Baba (1988). — Baba, 2005: 202, 306 (key, synonymies, Kei Islands and Sagami Bay, Japan, 300–549 m).
 Not Munida bellior. — Macpherson, 1994: 450 (Chesterfield Islands, 330 m (= R. confundens Macpherson & Machordom, 2001); fig. 66, Loyalty Islands, 285 m (= R. dextralis Macpherson & Machordom, 2001)); Chesterfield Islands, 80–120 m (= R. elegantissima (De Man, 1902)). — Macpherson, 1996a: 390, fig. 12 (Futuna Island, 105–160 m (= R. elegantissima (De Man, 1902)); fig. 12, Futuna Island, 224–252 m (= R. erythrina Macpherson & Machordom, 2001)).
Type data: holotype, male, BLIH 183.
Type locality: S of Jogashima, Sagami Bay, 80–90 m.
description: Published as part of Baba, Keiji, Macpherson, Enrique, Poore, Gary C. B., Ahyong, Shane T., Bermudez, Adriana, Cabezas, Patricia, Lin, Chia-Wei, Nizinski, Martha, Rodrigues, Celso & Schnabel, Kareen E., 2008, Catalogue of squat lobsters of the world (Crustacea: Decapoda: Anomura-families Chirostylidae, Galatheidae and Kiwaidae), pp. 1-220 in Zootaxa 1905 (1) on page 178, DOI: 10.11646/zootaxa.1905.1.1, http://zenodo.org/record/5134587
Electronic structure of half-metallic double perovskites
Creators: name: Szotek, Z.
name: Temmerman, W. M.
name: Svane, A.
name: Petit, L.
name: Winter, H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the self-interaction corrected local spin density (SIC-LSD) electronic structure and total energy calculations, leading also to valencies of the ground state configurations, for the half-metallic double perovskites such as Sr$_{2}$FeMoO$_{6}$, Ba$_{2}$FeMoO$_{6}$, Ca$_{2}$FeMoO$_{6}$, and Ca$_{2}$FeReO$_{6}$. We conclude that the Fe and Mo (or Re) spin magnetic moments are anti-parallel aligned, and the magnitude of the hybridization induced moment on Mo does not vary much between the different compounds. The hybridization spin magnetic moment on Re is of the order of -1.1 $μ_{B}$, while that on Mo is about -0.4 $μ_{B}$, independently of the alkaline earth element. Also the electronic structure of all the compounds studied is very similar, with a well defined gap in the majority spin component and metallic density of states for the minority spin component, with highly hybridized Fe, Mo (or Re), and oxygen bands.
description: 6 pages, 2 figures
Additional file 8 of Transcriptome analysis provides new insights into the transcriptional regulation of methyl jasmonate-induced flavonoid biosynthesis in pear calli
Creators: name: Apekshika T. Premathilake
name: Junbei Ni
name: Jiaqi Shen
name: Songling Bai
name: Teng, Yuanwen
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 8: Table S5. Accession numbers of the flavonoid regulatory MYB transcription factors in pear (Pyrus spp.), apple (Malus domestica), and Arabidopsis (Arabidopsis thaliana) that were included in the phylogenetic analysis.
The limit law of certain discrete multivariate distributions
Creators: name: Grigutis, Andrius
name: Nakliuda, Artur
Publisher: name: arXiv
Year: 2024
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60E05, 60G50, 60J80

description: Let $X_1,\,X_2,\,\ldots,\,X_N$, $N\in\mathbb{N}$ be independent but not necessarily identically distributed discrete and integer-valued random variables. Assume that $X_1\geqslant m_1$, $X_2\geqslant m_2$, $\ldots$, $X_N\geqslant m_N$ almost surely, where $m_1,\,m_2,\ldots,\,m_N$ are some integer numbers such that $m_1+m_2+\ldots+m_N<0$, and $X_k$ is identically distributed as $X_{k+N}$, for all $k\in\mathbb{N}$ in the sequence $X_1,\,X_2,\,\ldots$ In this communication, we make use of some of the known results to provide the closed-form expression of the limit multivariate distribution function $\mathbb{P}(X_1\leqslant x,\,X_1+X_2\leqslant x,\,\ldots)$, $x\in\mathbb{Z}$ via: (1) inclusion-exclusion principle based product of the roots of $G_{N}(s)=1$, where $G_{N}(s)$ is the probability generating function of $S_N=X_1+X_2+\ldots+X_N$, (2) the probability mass function of $S_N$, and (3) the expectation $\mathbb{E}S_N$.
Stringy excited baryons in holographic QCD
Creators: name: Hayashi, Yasuhiro
name: Ogino, Takahiro
name: Sakai, Tadakatsu
name: Sugimoto, Shigeki
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze excited baryon states using a holographic dual of QCD that is defined on the basis of an intersecting D4/D8-brane system. Studies of baryons in this model have been made by regarding them as a topological soliton of a gauge theory on a five-dimensional curved spacetime. However, this allows one to obtain only a certain class of baryons. We attempt to present a framework such that a whole set of excited baryons can be treated in a systematic way. This is achieved by employing the original idea of Witten, which states that a baryon is described by a system composed of $N_c$ open strings emanating from a baryon vertex. We argue that this system can be formulated by an ADHM-type matrix model of Hashimoto-Iizuka-Yi together with an infinite tower of the open string massive modes. Using this setup, we work out the spectra of excited baryons and compare them with the experimental data. In particular, we derive a formula of the nucleon Regge trajectory assuming that the excited nucleons lying the trajectory are characterized by the excitation of a single open string attached on the baryon vertex.
description: 31 pages, 1 pdf file, v2: version published in PTEP
The Effect of Supersymmetric CP Phases on qq-bar Annihilations
Creators: name: Aydemir, Aytekin
name: Cankocak, Kerem
name: Sever, Ramazan
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the rates for $q \bar{q}$ annihilation into charginos and neutralinos by taking into account the effects of supersymmetric soft phases. In particular, the phase of the $μ$ parameter gains direct accessibility via the production of dissimilar charginos and neutralinos. The phases of the trilinear soft masses do not have a significant effect on the cross sections. Our results can be important for sparticle searches at the LHC.
description: 23 papes
Additional file 1 of Canadian after-school care providers’ perceived role promoting healthy lifestyles: a focused ethnography
Creators: name: Elias, Pierrette H.
name: Montemurro, Genevieve
name: Sulz, Lauren
name: Torrance, Brian
name: Storey, Kate E.
Publisher: name: figshare
Year: 2020
Subjects: subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1 Supplementary file 1: Interview Guide. Study interview guide developed by the researchers for interview with after-school care providers.
Pseudo-Random Generator based on a Photonic Neuromorphic Physical Unclonable Function
Creators: name: Dermanis, Dimitris
name: Rizomiliotis, Panagiotis
name: Bogris, Adonis
name: Mesaritakis, Charis
Publisher: name: arXiv
Year: 2024
Subjects: subject: Emerging Technologies (cs.ET)
subject: Optics (physics.optics)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this work we provide numerical results concerning a silicon-on-insulator photonic neuromorphic circuit configured as a physical unclonable function. The proposed scheme is enhanced with the capability to be operated as an unconventional deterministic pseudo-random number generator, suitable for cryptographic applications that alleviates the need for key storage in non-volatile digital media. The proposed photonic neuromorphic scheme is able to offer NIST test compatible numbers with an extremely low false positive/negative probability below 10-14. The proposed scheme offers multi-functional capabilities due to the fact that it can be simultaneously used as an integrated photonic accelerator for machine-learning applications and as a hardware root of trust.
description: 8 pages, 7 figures
Quotients of AdS_{p+1} x S^q: causally well-behaved spaces and black holes
Creators: name: Figueroa-O'Farrill, Jose
name: Madden, Owen
name: Ross, Simon F.
name: Simon, Joan
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Starting from the recent classification of quotients of Freund--Rubin backgrounds in string theory of the type AdS_{p+1} x S^q by one-parameter subgroups of isometries, we investigate the physical interpretation of the associated quotients by discrete cyclic subgroups. We establish which quotients have well-behaved causal structures, and of those containing closed timelike curves, which have interpretations as black holes. We explain the relation to previous investigations of quotients of asymptotically flat spacetimes and plane waves, of black holes in AdS and of Godel-type universes.
description: 48 pages; v2: minor typos corrected
Sadayoshia Baba 1969
Creators: name: Baba, Keiji
name: Macpherson, Enrique
name: Poore, Gary C. B.
name: Ahyong, Shane T.
name: Bermudez, Adriana
name: Cabezas, Patricia
name: Lin, Chia-Wei
name: Nizinski, Martha
name: Rodrigues, Celso
name: Schnabel, Kareen E.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Galatheidae
Sadayoshia

description: Genus Sadayoshia Baba, 1969
 Sadayoshia Baba, 1969b: 18 (gender: feminine). — Baba, 2005: 203.
 Type species: Sadayoshia miyakei Baba, 1969, by monotypy.
description: Published as part of Baba, Keiji, Macpherson, Enrique, Poore, Gary C. B., Ahyong, Shane T., Bermudez, Adriana, Cabezas, Patricia, Lin, Chia-Wei, Nizinski, Martha, Rodrigues, Celso & Schnabel, Kareen E., 2008, Catalogue of squat lobsters of the world (Crustacea: Decapoda: Anomura-families Chirostylidae, Galatheidae and Kiwaidae), pp. 1-220 in Zootaxa 1905 (1) on page 180, DOI: 10.11646/zootaxa.1905.1.1, http://zenodo.org/record/5134587
Additional file 7 of Transcriptome analysis provides new insights into the transcriptional regulation of methyl jasmonate-induced flavonoid biosynthesis in pear calli
Creators: name: Apekshika T. Premathilake
name: Junbei Ni
name: Jiaqi Shen
name: Songling Bai
name: Teng, Yuanwen
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 7: Table S4. Primers used for the qRT-PCR analysis.
Table-top soft x-ray source for XAS experiments with photon energies up to 350 eV
Creators: name: Naranjo-Montoya, O. A.
name: Bridger, M.
name: Bhar, R.
name: Kalkhoff, L.
name: Schleberger, M.
name: Wende, H.
name: Tarasevitch, A.
name: Bovensiepen, U.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a table-top setup for femtosecond x-ray absorption spectroscopy based on high harmonic generation (HHG) in noble gases. Using sub-millijoule pump pulses at a central wavelength of 1550 nm broadband HHG in the range 70 to 350 eV was demonstrated. The HHG coherence lengths of several millimeters were achieved by reaching the nonadiabatic regime of harmonic generation. NEXAFS experiments on the boron K edge of a boron foil and a hexagonal BN (hBN) 2D material demonstrate the capabilities of the setup.
New definitions of thermodynamic temperature and entropy not based on the concepts of heat and thermal reservoir
Creators: name: Beretta, Gian Paolo
name: Zanchini, Enzo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: From a new rigorous formulation of the general axiomatic foundations of thermodynamics we derive an operational definition of entropy that responds to the emergent need in many technological frameworks to understand and deploy thermodynamic entropy well beyond the traditional realm of equilibrium states of macroscopic systems. The new treatment starts from a previously developed set of carefully worded operational definitions for all the necessary basic concepts, and is not based on the traditional ones of "heat" and of "thermal reservoir." It is achieved in three steps. First, a new definition of thermodynamic temperature is stated, for any stable equilibrium state. Then, by employing this definition, a measurement procedure is developed which defines uniquely the property entropy in a broad domain of states, which could include \textit{in principle}, even some non-equilibrium states of few-particle systems, provided they are separable and uncorrelated. Finally, the domain of validity of the definition is extended, possibly to every state of every system, by a different procedure, based on the preceding one, which associates a range of entropy values to any state not included in the previous domain. The principle of entropy non-decrease and the additivity of entropy are proved in both the domains considered.
description: 23 pages. Presented at Thermocon'16, International Conference and Summer School on Thermal Theories of Continua: Survey and Developments, Messina, Italy, April 19-22, 2016. Published in AAPP: Atti della Accademia Peloritana dei Pericolanti. http://dx.doi.org/10.1478/AAPP.97S1A1. arXiv admin note: substantial text overlap with arXiv:1411.5395
NFT1000: A Cross-Modal Dataset for Non-Fungible Token Retrieval
Creators: name: Wang, Shuxun
name: Lei, Yunfei
name: Zhang, Ziqi
name: Liu, Wei
name: Liu, Haowei
name: Yang, Li
name: Li, Wenjuan
name: Li, Bing
name: Hu, Weiming
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: E.2
subject: Computing methodologies Image representations

description: With the rise of "Metaverse" and "Web 3.0", Non-Fungible Token (NFT) has emerged as a kind of pivotal digital asset, garnering significant attention. By the end of March 2024, more than 1.7 billion NFTs have been minted across various blockchain platforms. To effectively locate a desired NFT, conducting searches within a vast array of NFTs is essential. The challenge in NFT retrieval is heightened due to the high degree of similarity among different NFTs, regarding regional and semantic aspects. In this paper, we will introduce a benchmark dataset named "NFT Top1000 Visual-Text Dataset" (NFT1000), containing 7.56 million image-text pairs, and being collected from 1000 most famous PFP1 NFT collections2 by sales volume on the Ethereum blockchain. Based on this dataset and leveraging the CLIP series of pre-trained models as our foundation, we propose the dynamic masking fine-tuning scheme. This innovative approach results in a 7.4\% improvement in the top1 accuracy rate, while utilizing merely 13\% of the total training data (0.79 million vs. 6.1 million). We also propose a robust metric Comprehensive Variance Index (CVI) to assess the similarity and retrieval difficulty of visual-text pairs data. The dataset will be released as an open-source resource. For more details, please refer to: https://github.com/ShuxunoO/NFT-Net.git.
description: 11 pages,12figures to be published in ACM Multimedia 2024, see https://openreview.net/forum?id=xUtNrKH8iB¬eId=xUtNrKH8iB
Sadayoshia acroporae Baba 1972
Creators: name: Baba, Keiji
name: Macpherson, Enrique
name: Poore, Gary C. B.
name: Ahyong, Shane T.
name: Bermudez, Adriana
name: Cabezas, Patricia
name: Lin, Chia-Wei
name: Nizinski, Martha
name: Rodrigues, Celso
name: Schnabel, Kareen E.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Galatheidae
Sadayoshia
Sadayoshia acroporae

description: Sadayoshia acroporae Baba, 1972
 Sadayoshia acroporae Baba, 1972a: 43, figs 1, 2 (Kabira, Ishigaki-jima, Ryukyus Ishigaki-jima of the Ryukyus, subtidal). — Baba, 1979b: 644 (Marsegu Island, Moluccas, subtidal). — Tirmizi, 1980: 108, figs 1–7 (Bay of Bengal, 80 m; Mozambique Channel, 1225 m).
Type data: holotype, male, KU.
Type locality: Kabira, Ishigaki-jima, Ryukyus Ishigaki-jima of the Ryukyus, subtidal.
description: Published as part of Baba, Keiji, Macpherson, Enrique, Poore, Gary C. B., Ahyong, Shane T., Bermudez, Adriana, Cabezas, Patricia, Lin, Chia-Wei, Nizinski, Martha, Rodrigues, Celso & Schnabel, Kareen E., 2008, Catalogue of squat lobsters of the world (Crustacea: Decapoda: Anomura-families Chirostylidae, Galatheidae and Kiwaidae), pp. 1-220 in Zootaxa 1905 (1) on page 180, DOI: 10.11646/zootaxa.1905.1.1, http://zenodo.org/record/5134587
Dynamics of fluctuations in a fluid below the onset of Rayleigh-Bénard convection
Creators: name: Oh, Jaechul
name: de Zárate, José M. Ortiz
name: Sengers, Jan V.
name: Ahlers, Guenter
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present experimental data and their theoretical interpretation for the decay rates of temperature fluctuations in a thin layer of a fluid heated from below and confined between parallel horizontal plates. The measurements were made with the mean temperature of the layer corresponding to the critical isochore of sulfur hexafluoride above but near the critical point where fluctuations are exceptionally strong. They cover a wide range of temperature gradients below the onset of Rayleigh-Bénard convection, and span wave numbers on both sides of the critical value for this onset. The decay rates were determined from experimental shadowgraph images of the fluctuations at several camera exposure times. We present a theoretical expression for an exposure-time-dependent structure factor which is needed for the data analysis. As the onset of convection is approached, the data reveal the critical slowing-down associated with the bifurcation. Theoretical predictions for the decay rates as a function of the wave number and temperature gradient are presented and compared with the experimental data. Quantitative agreement is obtained if allowance is made for some uncertainty in the small spacing between the plates, and when an empirical estimate is employed for the influence of symmetric deviations from the Oberbeck-Boussinesq approximation which are to be expected in a fluid with its density at the mean temperature located on the critical isochore.
description: 13 pages, 10 figures, 52 references
Wolf-Rayet stars in young massive star clusters as potential sources of Galactic cosmic rays
Creators: name: Kalyashova, Maria E
name: Bykov, Andrei M
name: Osipov, Sergei M
name: Ellison, Donald C
name: Badmaev, Danir V
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: For most elements, the isotopic ratios seen in cosmic rays (CRs) are similar to those in the solar wind. The most important exception to this is $^{22}$Ne/$^{20}$Ne where the CR value is $\sim 5$ times that of the solar wind. According to most recent models of nucleosynthesis, a large amount of $^{22}\mathrm{Ne}$ is generated in Wolf-Rayet (WR) stars. In the winds of carbon sequence WR stars, i.e., WC stars, the isotopic ratio $^{22}\mathrm{Ne}$/$^{20}\mathrm{Ne}$ can be much larger than in the solar wind. Here, we consider CRs produced by $^{22}\mathrm{Ne}$-enriched WR winds in compact clusters of young massive stars like Westerlund~1. We assume that efficient CR acceleration in clusters occurs over the WR lifetime in an ensemble of shock waves from multiple massive star winds. We estimate the fraction of all Galactic CRs such sources may produce for a given set of parameters.
description: 5 pages, 1 figure, accepted for publication in IOP Journal of Physics: Conf. Series
Dirac neutrinos from Peccei-Quinn symmetry: two examples
Creators: name: de la Vega, Leon M. G.
name: Nath, Newton
name: Peinado, Eduardo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We aim to explain the nature of neutrinos using Peccei-Quinn symmetry. We discuss two simple scenarios, one based on a type-II Dirac seesaw and the other in a one-loop neutrino mass generation, which solve the strong CP problem and naturally lead to Dirac neutrinos. In the first setup latest neutrino mass limit gives rise to axion which is in the reach of conventional searches. Moreover, we have both axion as well as WIMP dark mater for our second set up.
description: 11 pages, 4 figures ; v2: Version to appear in Nuclear Physics B, Section 2.2 has been expanded
Additional file 20 of Proteogenomic insights into the biology and treatment of pancreatic ductal adenocarcinoma
Creators: name: Tong, Yexin
name: Sun, Mingjun
name: Chen, Lingli
name: Wang, Yunzhi
name: Li, Yan
name: Li, Lingling
name: Zhang, Xuan
name: Cai, Yumeng
name: Qie, Jingbo
name: Pang, Yanrui
name: Xu, Ziyan
name: Zhao, Jiangyan
name: Zhang, Xiaolei
name: Liu, Yang
name: Tian, Sha
name: Qin, Zhaoyu
name: Feng, Jinwen
name: Zhang, Fan
name: Zhu, Jiajun
name: Xu, Yifan
name: Lou, Wenhui
name: Ji, Yuan
name: Zhao, Jianyuan
name: He, Fuchu
name: Hou, Yingyong
name: Ding, Chen
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 20: Fig. S20. HOGA1 regulated LARP7 expression, related to Fig. 8. A The association of the mRNA expression of HOGA1with prognosis (log-rank test). B Boxplot showing the differential expression of HOGA1 between tumors and NATs in CPTAC cohort (Student’s t test). C Expression of HOGA1, LARP7, CDK1, CCNB1, and CCNB2, in tumor tissues were detected by western blot analysis. N = non-tumor adjacent tissue, T = tumor tissue. D The impacts of HOGA1 overexpression on PANC-1 and BxPC-3 cells proliferation. E Proliferation of PANC-1 and BxPC-3 cells associated with various treatments (n = 4 repeats per group). F Cellular localization of HOGA1 in PANC-1 cells. G GO term category of HOGA1 interacting proteins. H–I LARP7 mRNA levels in PANC-1 cells with various treatments. J The percentage of G2/M phase cells in PANC-1 cells (n = 5 repeats per group). **** p < 1.0E-4, *** p < 1.0E-3, ** p < 1.0E-2, * p < 0.05, ns > 0.05.
Discovery of X-ray absorption features from the dipping low-mass X-ray binary XB 1916-053 with XMM-Newton
Creators: name: Boirin, L.
name: Parmar, A. N.
name: Barret, D.
name: Paltani, S.
name: Grindlay, J. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of narrow Fe XXV and Fe XXVI K alpha X-ray absorption lines at 6.65 and 6.95 keV in the persistent emission of the dipping low-mass X-ray binary (LMXB) XB 1916-053 during an XMM-Newton observation performed in September 2002. In addition, there is marginal evidence for absorption features at 1.48 keV, 2.67 kev, 7.82 keV and 8.29 keV consistent with Mg XII, S XVI, Ni XXVII K alpha and Fe XXVI K beta transitions, respectively. Such absorption lines from highly ionized ions are now observed in a number of high inclination (ie. close to edge-on) LMXBs, such as XB 1916-053, where the inclination is estimated to be between 60-80 degrees. This, together with the lack of any orbital phase dependence of the features (except during dips), suggests that the highly ionized plasma responsible for the absorption lines is located in a cylindrical geometry around the compact object. Using the ratio of Fe XXV and Fe XXVI column densities, we estimate the photo-ionization parameter of the absorbing material to be 10^{3.92} erg cm s^{-1}. Only the Fe XXV line is observed during dipping intervals and the upper-limits to the Fe XXVI column density are consistent with a decrease in the amount of ionization during dipping intervals. This implies the presence of cooler material in the line of sight during dipping. We also report the discovery of a 0.98 keV absorption edge in the persistent emission spectrum. The edge energy decreases to 0.87 keV during deep dipping intervals. The detected feature may result from edges of moderately ionized Ne and/or Fe with the average ionization level decreasing from persistent emission to deep dipping. This is again consistent with the presence of cooler material in the line of sight during dipping.
description: 13 pages, accepted for publication in Astronomy and Astrophysics
Central Charge in Quantum Optics
Creators: name: Burgarth, Daniel
name: Facchi, Paolo
name: Nakazato, Hiromichi
name: Pascazio, Saverio
name: Yuasa, Kazuya
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The product of two unitaries can normally be expressed as a single exponential through the famous Baker-Campbell-Hausdorff formula. We present here a counterexample in quantum optics, by showing that an expression in terms of a single exponential is possible only at the expense of the introduction of a new element (a central extension of the algebra), implying that there will be unitaries, generated by a sequence of gates, that cannot be generated by any time-independent quadratic Hamiltonian. A quantum-optical experiment is proposed that brings to light this phenomenon.
description: 13 pages, 7 figures
Additional file 2 of Canadian after-school care providers’ perceived role promoting healthy lifestyles: a focused ethnography
Creators: name: Elias, Pierrette H.
name: Montemurro, Genevieve
name: Sulz, Lauren
name: Torrance, Brian
name: Storey, Kate E.
Publisher: name: figshare
Year: 2020
Subjects: subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2 Supplementary file 2: Standards for Reporting Qualitative Research Checklist. SRQR Checklist completed for this qualitative study.
A Unified Algebraic Approach to Few and Many-Body Correlated Systems
Creators: name: Gurappa, N.
name: Panigrahi, Prasanta K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The present article is an extended version of the paper {\it Phys. Rev.} {\bf B 59}, R2490 (1999), where, we have established the equivalence of the Calogero-Sutherland model to decoupled oscillators. Here, we first employ the same approach for finding the eigenstates of a large class of Hamiltonians, dealing with correlated systems. A number of few and many-body interacting models are studied and the relationship between their respective Hilbert spaces, with that of oscillators, is found. This connection is then used to obtain the spectrum generating algebras for these systems and make an algebraic statement about correlated systems. The procedure to generate new solvable interacting models is outlined. We then point out the inadequacies of the present technique and make use of a novel method for solving linear differential equations to diagonalize the Sutherland model and establish a precise connection between this correlated system's wave functions, with those of the free particles on a circle. In the process, we obtain a new expression for the Jack polynomials. In two dimensions, we analyze the Hamiltonian having Laughlin wave function as the ground-state and point out the natural emergence of the underlying linear $W_{1+\infty}$ symmetry in this approach.
description: 18 pages, Revtex format, To appear in Physical Review B
Effectiveness of Intellectual Property Protection: Survey Evidence from China
Creators: name: Shi, Guanming
name: Pray, Carl E.
name: Zhang, Wenhui
name: Shi, Guanming
name: Pray, Carl E.
name: Zhang, Wenhui
Publisher: name: Unknown
Year: 2012
Subjects: subject: Demand and Price Analysis
subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business
subject: intellectual property rights
subject: innovation policy
subject: pesticide
subject: China

description: This paper examines Chinese pesticide firms’ use and perceptions of various means of intellectual property (IP) protection in protecting their innovations, using a unique dataset from 97 pesticide firms surveyed in 2008. These firms rate Chinese patents as quite effective in protecting their IP from infringement, although 70 percent of them state that improved enforcement is needed. Those firms that have been granted patents and those that claim their patents have been infringed upon both give lower ratings to the perceived effectiveness of patents. Trademarks are rated as less effective than patents, but firms that have had experience with patenting and infringement of patents tend to rate trademarks as more effective than those firms that do not have direct experience with the patent system. General government policies to encourage increased privatization, more private R&D, and higher education are associated with more faith in IP, but policies to strengthen IP by promoting mandatory IP training and the development of specialized IP divisions in the firms do not influence perceptions of IP effectiveness. We conclude that if the Chinese government wants to encourage innovation using IP protection, it must focus on improving the enforcement of patents.
Convergence rates for an inexact ADMM applied to separable convex optimization
Creators: name: Hager, William W.
name: Zhang, Hongchao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Convergence rates are established for an inexact accelerated alternating direction method of multipliers (I-ADMM) for general separable convex optimization with a linear constraint. Both ergodic and non-ergodic iterates are analyzed. Relative to the iteration number k, the convergence rate is O(1/k) in a convex setting and O(1/k^2) in a strongly convex setting. When an error bound condition holds, the algorithm is 2-step linearly convergent. The I-ADMM is designed so that the accuracy of the inexact iteration preserves the global convergence rates of the exact iteration, leading to better numerical performance in the test problems.
description: arXiv admin note: text overlap with arXiv:1604.02494
Chandra Observation of Diffuse Gas and LMXBs in the Elliptical Galaxy NGC 4649 (M60)
Creators: name: Randall, S. W.
name: Sarazin, C. L.
name: Irwin, J. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a Chandra X-ray observation of the X-ray bright E2 elliptical galaxy NGC4649. In addition to bright diffuse emission, we resolve 165 discrete sources, most of which are presumably low-mass X-ray binaries (LMXBs). As found in previous studies, the luminosity function of the resolved sources is well-fit by a broken power-law. In NGC4697 and NGC1553, the break luminosity was comparable to the Eddington luminosity of a $1.4 M_{\odot}$ neutron star. One possible interpretation of this result is that those sources with luminosities above the break are accreting black holes and those below are mainly accreting neutron stars. The total X-ray spectrum of the resolved sources is well-fit by a hard power-law, while the diffuse spectrum requires a hard and a soft component, presumably due to the relatively soft diffuse gas and the harder unresolved sources. We also find evidence for structure in the diffuse emission near the center of NGC4649. Specifically, there appear to be bright "fingers" of emission extending from the center of the galaxy and a 5 arcsec long bar at the center of the galaxy. The fingers are morphologically similar to radial features seen in two-dimensional hydrodynamic simulations of cooling flows in elliptical galaxies, and although their other properties do not match the predictions of the particular simulations used we conclude that the radial fingers might be due to convective motions of hot outflowing gas and cooler inflowing gas. The bar is coincident with the central extended radio source; we conclude that the bar may be caused by weak shocks in the diffuse gas from an undetected low-luminosity active galactic nucleus (AGN).
description: 26 pages, 11 figures. Accepted for publication in the Astrophysical Journal
Sadayoshia balica
Creators: name: Baba, Keiji
name: Macpherson, Enrique
name: Poore, Gary C. B.
name: Ahyong, Shane T.
name: Bermudez, Adriana
name: Cabezas, Patricia
name: Lin, Chia-Wei
name: Nizinski, Martha
name: Rodrigues, Celso
name: Schnabel, Kareen E.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Galatheidae
Sadayoshia
Sadayoshia balica

description: Sadayoshia balica (Boone, 1935)
 Galathea balica Boone, 1935: 46, pl. 11 (Bali).
Type data: syntypes, recorded under Vanderbilt Marine Museum Cat. No. 692; not located.
Type locality: Bali.
description: Published as part of Baba, Keiji, Macpherson, Enrique, Poore, Gary C. B., Ahyong, Shane T., Bermudez, Adriana, Cabezas, Patricia, Lin, Chia-Wei, Nizinski, Martha, Rodrigues, Celso & Schnabel, Kareen E., 2008, Catalogue of squat lobsters of the world (Crustacea: Decapoda: Anomura-families Chirostylidae, Galatheidae and Kiwaidae), pp. 1-220 in Zootaxa 1905 (1) on page 180, DOI: 10.11646/zootaxa.1905.1.1, http://zenodo.org/record/5134587
Price transmission analysis of pasteurised liquid milk in South Africa: Granger causality approach
Creators: name: Ramoshaba, T.
name: Hlongwane, J.
name: Belete, A.
name: Ramoshaba, T.
name: Hlongwane, J.
name: Belete, A.
Publisher: name: Unknown
Year: 2018
Subjects: Demand and Price Analysis

description: Price transmission studies have become increasingly important in Sub Saharan Africa over the past decades because of its nature of providing clear and insightful information into our markets. In this study, price transmission mechanism is described with an agricultural product within the dairy industry, which is pasteurised liquid milk. The aim of the study was to investigate and analyse the nature of price transmission mechanism of pasteurised liquid milk South Africa. The study used secondary time series data that covered a sample size of 17 years (2000 -2016) of pasteurised liquid milk. Granger causality test and Vector Error Correction Model were used for data analysis. The Granger causality tests suggested a bidirectional causal relationship between processor and farm gate prices and also between retail and processor prices. On the other hand, a unidirectional causality was found from retail to farm gate prices. The VECM results showed asymmetric price transmission implying that retailers and processors react quicker to price increases than to price decrease. Price monitoring policy is suggested in order to protect the consumers from unfair prices passed on by the retailers. Keywords: Price transmission, granger causality, pasteurised liquid milk, Vector Error Correction model
The Food Corporation of India and the Public Distribution System: Impacts on Market Integration in Wheat, Rice, Pearl Millet, and Corn
Creators: name: Mallory, Mindy
name: Baylis, Kathy
name: Mallory, Mindy
name: Baylis, Kathy
Publisher: name: Unknown
Year: 2012
Subjects: Agricultural marketing

description: This paper examines the spatial integration of major staple commodity markets in India. We consider wheat, rice, pearl millet, and corn markets. This set represents the two most highly regulated crops, wheat and rice; and two that are regulated to a lesser degree, pearl millet and corn. Our data come from the states of Bihar, Haryana, Uttar Pradesh, and West Bengal, states that produce a large share of India’s cereal grains. Access to food remains an important issue for India as it develops. Because of this, the Indian government regulates the markets for staple foods heavily, requiring almost all grain be marketed through government licensed mandis. The government enforces a minimum price in the regulated markets by placing government buyers in each market that will purchase any amount of grain meeting minimum quality standards at the minimum support price. This activity results in the government being the primary entity engaged in the storage of staple food crops. These market interventions discourage private investment in storage capacity among farmers and traders who handle grain in the private sector, which could impact market integration and efficient price transmission. However, we find the strongest evidence for market integration in the rice markets, which is one of the most regulated of the crops considered. Therefore, there seems to be some benefit from the government’s market making activities that may compensate for a lack of infrastructure to facilitate market integration
Impurity effects in unconventional density waves in the unitary limit
Creators: name: Dóra, Balázs
name: Virosztek, Attila
name: Maki, Kazumi
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the effect of strong, nonmagnetic impurities on quasi-one-dimensional conventional and unconventional density waves (DW and UDW). The conventional case remains unaffected similarly to s-wave superconductors in the presence of weak, nonmagnetic impurities. The thermodynamic properties of UDW were found to be identical to those of a d-wave superconductor in the unitary limit. The real and imaginary part of the optical conductivity is determined for electric fields applied in the perpendicular directions. A new structure can be present corresponding to excitations from the bound state at the Fermi energy to the gap maximum in addition to the usual peak at 2Δ. In the dc limit, universal electric conductivity is found.
description: 9 pages, 5 figures
The Behavior of Bid-Ask Spreads in the Electronically Traded Corn Futures Market
Creators: name: Wang, Xiaoyang
name: Garcia, Philip
name: Irwin, Scott H.
name: Wang, Xiaoyang
name: Garcia, Philip
name: Irwin, Scott H.
Publisher: name: Unknown
Year: 2012
Subjects: Agricultural marketing

description: This paper is the first to study liquidity costs based on actual observed bid-ask spreads (BAS) in commodity futures markets. Using electronically-traded corn futures contracts, we calculate the BAS directly faced by market participants, avoiding estimation problems encountered previously. Over the extended horizon that a contract is traded there exist a pronounced non-linear U-shaped maturity pattern, and a strong seasonality consistent with the term structure of implied volatilities. Statistical analysis in the nearby and next nearby periods, in which most trading activity occurs, indicates that the BAS is generally small (well below two ticks), despite the turbulent market in the 2008 to early 2010 sample period. As in open outcry markets, the BAS responds to daily volume and price volatility, particularly over the last 40 non-expiration month trading days. For the next nearby contracts, a significant declining trend exists in the BAS independent of daily volume and volatility. In both periods, USDA Grain Stock and Production-WASDE announcements significantly widen the BAS, as do short-term price trends. The index fund roll has little impact on the BAS, but contract specific effects are present reflecting a seasonal pattern where the BAS is lowest in December, and highest in September. Week-day effects are relatively weak in magnitude or non-existent.
Kiwaidae Macpherson, Jones & Segonzac 2005
Creators: name: Baba, Keiji
name: Macpherson, Enrique
name: Poore, Gary C. B.
name: Ahyong, Shane T.
name: Bermudez, Adriana
name: Cabezas, Patricia
name: Lin, Chia-Wei
name: Nizinski, Martha
name: Rodrigues, Celso
name: Schnabel, Kareen E.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Kiwaidae

description: Family Kiwaidae Macpherson, Jones & Segonzac, 2005  Kiwaidae Macpherson, Jones & Segonzac, 2005: 712.
 Type genus: Kiwa Macpherson, Jones & Segonzac, 2005.
description: Published as part of Baba, Keiji, Macpherson, Enrique, Poore, Gary C. B., Ahyong, Shane T., Bermudez, Adriana, Cabezas, Patricia, Lin, Chia-Wei, Nizinski, Martha, Rodrigues, Celso & Schnabel, Kareen E., 2008, Catalogue of squat lobsters of the world (Crustacea: Decapoda: Anomura-families Chirostylidae, Galatheidae and Kiwaidae), pp. 1-220 in Zootaxa 1905 (1) on page 182, DOI: 10.11646/zootaxa.1905.1.1, http://zenodo.org/record/5134587