cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Influence of high-energy electron irradiation on the transport properties of La_{1-x}Ca_{x}MnO_{3} films (x \approx 1/3)
Creators: name: Belevtsev, B. I.
name: Krasovitsky, V. B.
name: Bobkov, V. V.
name: Naugle, D. G.
name: Rathnayaka, K. D. D.
name: Parasiris, A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The effect of crystal lattice disorder on the conductivity and colossal magnetoresistance in La_{1-x}Ca_{x}MnO_{3} (x \approx 0.33) films has been examined. The lattice defects are introduced by irradiating the film with high-energy (\simeq 6 MeV) electrons with a maximal fluence of about 2\times 10^{17} cm^{-2}. This comparatively low dose of irradiation produces rather small radiation damage in the films. The number of displacements per atom (dpa) in the irradiated sample is about 10^{-5}. Nethertheless, this results in an appreciable increase in the film resistivity. The percentage of resistivity increase in the ferromagnetic metallic state (below the Curie tempetature T_{c}) was much greater than that observed in the insulating state (above T_{c}). At the same time irradiation has much less effect on T_{c} or on the magnitude of the colossal magnetoresistance. A possible explanation of such behavior is proposed.
description: RevTex, 22 pages, 3 Postscript figures, submitted to Eur. Phys. J. B
Determinants of Foreign Direct Investment in EU Countries – Do Corporate Taxes Really Matter?
Creators: name: Hunady, Jan
name: Orviska, Marta
Publisher: name: figshare
Year: 2019
Subjects: subject: 140210 International Economics and International Finance
subject: FOS: Economics and business
subject: 150308 International Business
subject: 180117 International Trade Law
subject: FOS: Law
subject: Economics
subject: 140212 Macroeconomics (incl. Monetary and Fiscal Theory)
subject: 140207 Financial Economics
subject: 140299 Applied Economics not elsewhere classified
subject: 150205 Investment and Risk Management
subject: 150299 Banking, Finance and Investment not elsewhere classified
subject: 180125 Taxation Law
subject: 140215 Public Economics- Taxation and Revenue
subject: 150399 Business and Management not elsewhere classified
subject: 200209 Multicultural, Intercultural and Cross-cultural Studies
subject: FOS: Other humanities
subject: 140211 Labour Economics
subject: 180118 Labour Law
subject: 160510 Public Policy
subject: FOS: Political science
subject: 160509 Public Administration
subject: 150202 Financial Econometrics
subject: 150201 Finance

description: Presentation of the research dealing with determinants of FDI in EU countries with focus on corporate taxation.
THE ROLE OF TEMPERAMENT IN ADAPTATION TO THE EDUCATIONAL PROCESS IN ELEMENTARY SCHOOL STUDENTS
Creators: name: Uzakbaeva, Venera
Publisher: name: Zenodo
Year: 2024

description: Temperament is part of the biologically determined structures of the individual. Temperament determines the existence of many psychological differences between people, as well as in emotions, emotional impressionability, rhythm and speed of actions, and other dynamic characteristics. This article talks about the role of temperament in the adaptation of primary school students to the educational process.
Additional file 7 of The genomic underpinnings of apoptosis in the silkworm, Bombyx mori
Creators: name: Zhang, Jin-Ye
name: Pan, Min-Hui
name: Sun, Zhi-Ya
name: Huang, Shu-Jing
name: Yu, Zi-Shu
name: Liu, Di
name: Zhao, Dan-Hong
name: Lu, Cheng
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Authors’ original file for figure 3
Supplemental Material_JCEM_Relationship between distal skin temperature daily rhythm and brown adipose tissue 18F-Fluordeoxyglucose uptake in young adults
Creators: name: Manzano, Francisco Miguel Acosta
name: Martinez-Tellez, Borja
name: Blondin, Denis P.
name: Haman, François
name: Rensen, Patrick C. N.
name: Llamas-Elvira, Jose M.
name: Martinez-Nicolas, Antonio
name: Jonatan R. Ruiz
Publisher: name: figshare
Year: 2019
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: Supplementary file of the manuscripted "Relationship between distal skin temperature daily rhythm and brown adipose tissue 18F-Fluordeoxyglucose uptake in young adults" submitted to "Journal of Clinical Endocrinology and Metabolism"
Quantum melting of magnetic long-range order near orbital degeneracy. Classical phases and Gaussian fluctuations
Creators: name: Oles, Andrzej M.
name: Feiner, Louis Felix
name: Zaanen, Jan
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the effective spin-orbital model derived for the d9 ions in a three-dimensional perovskite lattice, as in KCuF_3, where at each site the doubly degenerate eg orbitals contain a single hole. The model describes the superexchange interactions that depend on the pattern of orbitals occupied. We present the ground state properties of this model, depending on the splitting between the eg orbitals E_z, and the Hund's rule coupling in the excited d8 states, J_H. The classical phase diagram consists of six magnetic phases which all have different orbital ordering: two antiferromagnetic (AF) phases with G-AF order and either x2-y2 or 3z2-r2 orbitals occupied, two phases with mixed orbital (MO) patterns and A-AF order, and two other MO phases with either C-AF or G-AF order. All of them become degenerate at the multicritical point M=(E_z,J_H)=(0,0). Using a generalization of linear spin-wave theory we study both the transverse excitations which are spin-waves and spin-and-orbital-waves, as well as the longitudinal (orbital) excitations. The transverse modes couple to each other, and the spin-and-orbital-wave turns into a soft mode near the M point. Therefore, quantum corrections to the long-range-order parameter are drastically increased near the orbital degeneracy, and classical order is suppressed in a crossover regime between the G-AF and A-AF phases in the (E_z,J_H) plane. This behavior is reminiscent of that found in frustrated spin models, and we conclude that orbital degeneracy provides a new and physically realizable mechanism which stabilizes a spin liquid ground state due to inherent frustration of magnetic interactions. We also point out that such a disordered magnetic phase is likely to be realized in LiNiO_2.
description: 33 pages, 19 figures
Core reconstruction of the 90-degree partial dislocation in non-polar semiconductors
Creators: name: Nunes, R. W.
name: Bennetto, J.
name: Vanderbilt, David
Publisher: name: arXiv
Year: 1998
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the energetics of the single-period and double-period core reconstructions of the 90-degree partial dislocation in the homopolar semiconductors C, Si, and Ge. The double-period geometry is found to be lower in energy in all three materials, and the energy difference between the two geometries is shown to follow the same trends as the energy gap and the stiffness. Both structures are fully reconstructed, consisting entirely of fourfold coordinated atoms. They differ primarily in the detail of the local strains introduced by the the two reconstructions in the core region. The double-period structure is shown to introduce smaller average bond-length deviations, at the expense of slightly larger average bond-angle bending distortions, with respect to the single-period core. The balance between these two strain components leads to the lower energy of the double-period reconstruction.
description: 4 pages, two-column style with 1 postscript figure embedded. Uses REVTEX and epsf macros. Also available at http://www.physics.rutgers.edu/~dhv/preprints/index.html#rn_dp90
Cybianthus leprieurii G. Agostini
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
Magnoliopsida
Ericales
Primulaceae
Cybianthus
Cybianthus leprieurii

description: [1409] Cybianthus leprieurii G.Agostini
 Acta Biol. Venez. 10 (2): 159 (Agostini 1980). — Weigeltia parviflora Mez, Pflanzenr. [Engler] IV.236 (Heft 9): 288 [6 May 1902] (Mez 1902).
NOTE. — Known only from the Guiana Shield.
 HERBARIUM DATA (FG). — 5 collections at CAY. Sel. exs.: F.M.R. Leprieur s.n. (original material P [P00715205]); R. A. A. Oldeman B-521, height 11 m.
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 644, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Low energy effective Hamiltonian for the XXZ spin chain
Creators: name: Lukyanov, S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Coupling constants for the most relevant terms in the low energy effective Hamiltonian of the XXZ spin chain are derived. Using this result we study the low energy (low temperature, weak magnetic field) thermodynamics, finite size effects and subleading long distance asymptotics of correlation functions.
description: 20 pages, harvmac.tex, two epsf figures
Aggregating E-commerce Search Results from Heterogeneous Sources via Hierarchical Reinforcement Learning
Creators: name: Takanobu, Ryuichi
name: Zhuang, Tao
name: Huang, Minlie
name: Feng, Jun
name: Tang, Haihong
name: Zheng, Bo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: In this paper, we investigate the task of aggregating search results from heterogeneous sources in an E-commerce environment. First, unlike traditional aggregated web search that merely presents multi-sourced results in the first page, this new task may present aggregated results in all pages and has to dynamically decide which source should be presented in the current page. Second, as pointed out by many existing studies, it is not trivial to rank items from heterogeneous sources because the relevance scores from different source systems are not directly comparable. To address these two issues, we decompose the task into two subtasks in a hierarchical structure: a high-level task for source selection where we model the sequential patterns of user behaviors onto aggregated results in different pages so as to understand user intents and select the relevant sources properly; and a low-level task for item presentation where we formulate a slot filling process to sequentially present the items instead of giving each item a relevance score when deciding the presentation order of heterogeneous items. Since both subtasks can be naturally formulated as sequential decision problems and learn from the future user feedback on search results, we build our model with hierarchical reinforcement learning. Extensive experiments demonstrate that our model obtains remarkable improvements in search performance metrics, and achieves a higher user satisfaction.
description: WWW 19, 11 pages
Ultraviolet Activity as indicator of Small-scale Magnetic Fields in gamma Cassiopeiae
Creators: name: Smith, Myron A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The recorded activity of gamma Cas (B0.5 IVe) in the ultraviolet is important to an understanding of the mechanism behind this prototypical Be star's high energy activity, especially its hard X-ray emissions. Our analysis focuses first on the phasing of ultraviolet and optical light curves from different epochs. The rotational interpretation of the 1.22d optical signal is justifiedin part on this phasing. Next we detail observations of "migrating subfeatures," which traverse blue to red across line profiles in high quality spectra. These are likely to be proxies for surface magnetic fields, which have not been detected yet by spectropolarimetric means in rapid rotating Be stars like gamma Cas. We also analyze the important responses of the semi-forbidden resonance S IV line at \lambda1404.8 to simultaneous X-ray variations. These results offer indirect support for the existence of small-scale magnetic fields on this Be star.
description: Accepted by Pub. Astron. Soc. Pacific; 9 pages, 3 figures
On the high derivative fermionic operator and trace anomaly
Creators: name: de Berredo-Peixoto, G.
name: Shapiro, I. L.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a new example of the high derivative four-dimensional conformal operator. This operator acts on fermions, and its contribution to the trace anomaly has opposite sign, as compared to conventional scalars, spinors and vectors. Possible generalizations and applications are discussed.
description: 9 pages, LaTeX, no figures
The Effect of Higher Education on Entrepreneurial Activities and Starting Up Successful Businesses
Creators: name: Hunady, Jan
name: Orviska, Marta
name: Pisar, Peter
Publisher: name: figshare
Year: 2019
Subjects: subject: 150304 Entrepreneurship
subject: FOS: Economics and business
subject: 130304 Educational Administration, Management and Leadership
subject: FOS: Educational sciences
subject: 160506 Education Policy
subject: FOS: Political science
subject: Education
subject: 140204 Economics of Education
subject: 139999 Education not elsewhere classified
subject: 130103 Higher Education
subject: 140214 Public Economics- Publically Provided Goods
subject: 130203 Economics, Business and Management Curriculum and Pedagogy
subject: Economics
subject: 150314 Small Business Management
subject: 150301 Business Information Management (incl. Records, Knowledge and Information Management, and Intelligence)
subject: 150399 Business and Management not elsewhere classified
subject: 160511 Research, Science and Technology Policy

description: The paper deals with the potential relationship between higher education and entrepreneurial activities. Universities and other higher education institutions could be seen as boosting entrepreneurship in the region. University graduates could be more often involved in starting up a new business and the university itself could commercialize their innovations by creating academic spin-off companies. The paper aims to examine the potential effect of higher education on the probability of starting a business as well as its further success. Based on the data for 40 EU and non-EU countries, retrieved from a Eurobarometer survey, we conducted probit and IV probit regressions. These have tested the assumed relationship between higher education and entrepreneurial activities. Our results strongly suggest that higher education can often be very beneficial for starting up a new business and this seems to be one of the factors determining the success of new businesses. Furthermore, those respondents who attended courses related to entrepreneurship appear to be more active in starting-up a business and this seems to be also positively correlated with the company's future success. Interestingly, university graduates from Brazil, Portugal and India in particular, tend to appreciate the role that their universities have played in acquiring the skills to enable them to run a business.
Additional file 1 of Single nucleotide polymorphisms associated with postoperative inadequate analgesia after single-port VATS in Chinese population
Creators: name: Xing, Xiufang
name: Bai, Yongyu
name: Sun, Kai
name: Yan, Min
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology

description: Additional file 1: Figure S1. LD plots of SNPs of the SCN11A gene. Identifies the linkage disequilibrium of SNPs among SCN11A gene.
Additional file 6 of The genomic underpinnings of apoptosis in the silkworm, Bombyx mori
Creators: name: Zhang, Jin-Ye
name: Pan, Min-Hui
name: Sun, Zhi-Ya
name: Huang, Shu-Jing
name: Yu, Zi-Shu
name: Liu, Di
name: Zhao, Dan-Hong
name: Lu, Cheng
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Authors’ original file for figure 2
Double exchange-driven spin pairing at the (001) surface of manganites
Creators: name: Filippetti, Alessio
name: Pickett, Warren E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The (001) surface of La_{1-x}Ca_xMnO_3 system in various magnetic orderings is studied by first principle calculations. A general occurrence is that z^2 dangling bond charge -- which is ``invisible'' in the formal valence picture -- is promoted to the bulk gap/Fermi level region. This drives a double-exchange-like process that serves to align the surface Mn spin with its subsurface neighbor, regardless of the bulk magnetic order. For heavy doping, the locally ``ferromagnetic'' coupling is very strong and the moment enhanced by as much as 30% over the bulk value.
description: 6 pages, 4 figures
Cybianthus potiaei G. Agostini
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
Magnoliopsida
Ericales
Primulaceae
Cybianthus
Cybianthus potiaei

description: [1411] Cybianthus potiaei (Mez) G.Agostini
(Fig. 46D)
 Acta Biol. Venez. 10 (2): 161 (Agostini 1980). — Weigeltia potiaei Mez, Pflanzenr. [Engler] IV.236 (Heft 9): 285 [6 May 1902] (Mez 1902 ).
 HERBARIUM DATA (FG). — 11 collections at CAY. Sel. exs.: P.A. Poiteau s.n. (original material P[P00715218]).
INVENTORY DATA (FG). — 1 tree, dbh = 11.8 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 644, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Finite-size effects in the self-organized critical forest-fire model
Creators: name: Schenk, Klaus
name: Drossel, Barbara
name: Clar, Siegfried
name: Schwabl, Franz
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study finite-size effects in the self-organized critical forest-fire model by numerically evaluating the tree density and the fire size distribution. The results show that this model does not display the finite-size scaling seen in conventional critical systems. Rather, the system is composed of relatively homogeneous patches of different tree densities, leading to two qualitatively different types of fires: those that span an entire patch and those that don't. As the system size becomes smaller, the system contains less patches, and finally becomes homogeneous, with large density fluctuations in time.
description: 10 pages, 11 figures
Additional file 1 of Comparison of brain connectomes by MRI and genomics and its implication in Alzheimer’s disease
Creators: name: Woo, Young
name: Roussos, Panos
name: Haroutunian, Vahram
name: Katsel, Pavel
name: Gandy, Samuel
name: Schadt, Eric
name: Zhu, Jun
Publisher: name: figshare
Year: 2020
Subjects: subject: Cell Biology
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Marine Biology

description: Additional file 1: Supplementary figures.
Additional file 9 of The genomic underpinnings of apoptosis in the silkworm, Bombyx mori
Creators: name: Zhang, Jin-Ye
name: Pan, Min-Hui
name: Sun, Zhi-Ya
name: Huang, Shu-Jing
name: Yu, Zi-Shu
name: Liu, Di
name: Zhao, Dan-Hong
name: Lu, Cheng
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Authors’ original file for figure 5
In vitro and in vivo evaluation of the trypanocidal activity of the acetone extract of lichen Usnea steineri and its chemical constituents
Creators: name: Ferreira, Luiz Antonio
name: da Silva Ferreira, Daniele
name: Tozatti, Marcos Gomide
name: de Almeida Silva, Marcelly Canuto
name: Groppo, Milton
name: Magalhães, Lizandra Guidi
name: Andrade e Silva, Márcio Luis
name: Januário, Ana Helena
name: Pauletti, Patrícia Mendonça
name: Verly, Leonardo Bindelli
name: Santos, Mário F. C.
name: Cunha, Wilson Roberto
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer

description: More than 2.5 billion people live in endemic areas for neglected tropical diseases caused by the protozoan Trypanosoma cruzi. Which establishes chronic infections and increases public health spending. Thus, this paper describes the chemical study of Usnea steineri acetone extract and evaluations of trypanocidal activity in vitro and in vivo. Four chemical constituents from the acetone extract have been isolated: usnic acid, diffractaic acid, galbinic acid, and norstictic acid. The acetone extract of U. steineri revealed an IC50 of 49.4 ± 1.5 µg/mL regarding the trypomastigote T. cruzi forms. The usnic acid revealed the biggest effectivity regarding the trypomastigote T. cruzi forms. The trypanocidal activity of the usnic acid regarding the amastigote forms revealed promising results, showing IC50 of 67.0 ± 3.8 µM. The in vivo evaluation with the usnic acid revealed a decreased parasitemia at 40 mg/kg. Therefore, the results obtained open the perspectives for future studies aiming at its pharmacological application.
Analysis of Neptune's 2017 Bright Equatorial Storm
Creators: name: Molter, Edward
name: de Pater, Imke
name: Luszcz-Cook, Statia
name: Hueso, Ricardo
name: Tollefson, Joshua
name: Alvarez, Carlos
name: Sánchez-Lavega, Agustín
name: Wong, Michael H.
name: Hsu, Andrew I.
name: Sromovsky, Lawrence A.
name: Fry, Patrick M.
name: Delcroix, Marc
name: Campbell, Randy
name: de Kleer, Katherine
name: Gates, Elinor
name: Lynam, Paul David
name: Ammons, S. Mark
name: Coy, Brandon Park
name: Duchene, Gaspard
name: Gonzales, Erica J.
name: Hirsch, Lea
name: Magnier, Eugene A.
name: Ragland, Sam
name: Rich, R. Michael
name: Wang, Feige
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the discovery of a large ($\sim$8500 km diameter) infrared-bright storm at Neptune's equator in June 2017. We tracked the storm over a period of 7 months with high-cadence infrared snapshot imaging, carried out on 14 nights at the 10 meter Keck II telescope and 17 nights at the Shane 120 inch reflector at Lick Observatory. The cloud feature was larger and more persistent than any equatorial clouds seen before on Neptune, remaining intermittently active from at least 10 June to 31 December 2017. Our Keck and Lick observations were augmented by very high-cadence images from the amateur community, which permitted the determination of accurate drift rates for the cloud feature. Its zonal drift speed was variable from 10 June to at least 25 July, but remained a constant $237.4 \pm 0.2$ m s$^{-1}$ from 30 September until at least 15 November. The pressure of the cloud top was determined from radiative transfer calculations to be 0.3-0.6 bar; this value remained constant over the course of the observations. Multiple cloud break-up events, in which a bright cloud band wrapped around Neptune's equator, were observed over the course of our observations. No "dark spot" vortices were seen near the equator in HST imaging on 6 and 7 October. The size and pressure of the storm are consistent with moist convection or a planetary-scale wave as the energy source of convective upwelling, but more modeling is required to determine the driver of this equatorial disturbance as well as the triggers for and dynamics of the observed cloud break-up events.
description: 42 pages, 14 figures, 6 tables; Accepted to Icarus
Vertex-corrected perturbation theory for the electron-phonon problem with non-constant density of states
Creators: name: Freericks, J. K.
name: Zlatic', V.
name: Chung, Woonki
name: Jarrell, Mark
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A series of weak-coupling perturbation theories which include the lowest-order vertex corrections are applied to the attractive Holstein model in infinite dimensions. The approximations are chosen to reproduce the iterated perturbation theory in the limit of half-filling and large phonon frequency (where the Holstein model maps onto the Hubbard model). Comparison is made with quantum Monte Carlo solutions to test the accuracy of different approximation schemes.
description: 31 pages, 15 figures, typeset in ReVTeX
Cybianthus resinosus Mez
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
Magnoliopsida
Ericales
Primulaceae
Cybianthus
Cybianthus resinosus

description: [1413] Cybianthus resinosus Mez
 Pflanzenr. [Engler] IV.236 (Heft 9): 219 [6 May 1902] (Mez 1902).
 HERBARIUM DATA (FG). — 2 collections at CAY. Sel. exs.: J.-J. de Granville et al. 8915.
SIZE. — Up to 15 m tall (Pipoly & Gustafsson 2002).
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 645, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Thermodynamic properties of the one-dimensional Kondo insulators studied by the density matrix renormalization group method
Creators: name: Shibata, N.
name: Ammon, B.
name: Troyer, M.
name: Sigrist, M.
name: Ueda, K.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Thermodynamic properties of the one-dimensional Kondo lattice model at half-filling are studied by the density matrix renormalization group method applied to the quantum transfer matrix. Spin susceptibility, charge susceptibility, and specific heat are calculated down to T=0.1t for various exchange constants. The obtained results clearly show crossover behavior from the high temperature regime of nearly independent localized spins and conduction electrons to the low temperature regime where the two degrees of freedom couple strongly. The low temperature energy scales of the charge and spin susceptibilities are determined and shown to be equal to the quasiparticle gap and the spin gap, respectively, for weak exchange couplings.
description: 4 pages, 3 Postscript figures, REVTeX, submitted to J. Phys. Soc. Jpn
Universe's Primordial Quantum Memories
Creators: name: Dvali, Gia
name: Eisemann, Lukas
name: Michel, Marco
name: Zell, Sebastian
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We provide a very general argument showing that the Universe must have kept its quantum memories from an epoch much earlier than $60$ e-foldings before the end of inflation. The point is that a generic system of enhanced memory storage capacity exhibits a phenomenon of memory burden. Due to its universal nature this effect must be applicable to de Sitter since the latter has a maximal memory storage capacity thanks to its Gibbons-Hawking entropy. The primordial information pattern encoded in de Sitter memory initially costs very little energy. However, because of Gibbons-Hawking evaporation, the memory burden of the pattern grows in time and increasingly back reacts on the evaporation process. After a finite time the memory burden becomes unbearable and de Sitter quantum breaks. If inflation ended not long before its quantum break-time, the imprints of the primordial memory pattern can be observable. This provides a qualitatively new type of window in the Universe's beginning, a sort of cosmic quantum hair.
description: 9 pages, 2 figures
Hypermultiplets, Hyperkahler Cones and Quaternion-Kahler Geometry
Creators: name: de Wit, Bernard
name: Rocek, Martin
name: Vandoren, Stefan
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study hyperkahler cones and their corresponding quaternion-Kahler spaces. We present a classification of 4(n-1)-dimensional quaternion-Kahler spaces with n abelian quaternionic isometries, based on dualizing superconformal tensor multiplets. These manifolds characterize the geometry of the hypermultiplet sector of perturbative moduli spaces of type-II strings compactified on a Calabi-Yau manifold. As an example of our construction, we study the universal hypermultiplet in detail, and give three inequivalent tensor multiplet descriptions. We also comment on the construction of quaternion-Kahler manifolds that may describe instanton corrections to the moduli space.
description: 52 pages, no figures, typos corrected, some references added
Efficient Proximal Mapping Computation for Unitarily Invariant Low-Rank Inducing Norms
Creators: name: Grussler, Christian
name: Giselsson, Pontus
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optimization and Control (math.OC)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 90C06, 90C25, 90C26, 90C59, 68W25, 49M20

description: Low-rank inducing unitarily invariant norms have been introduced to convexify problems with low-rank/sparsity constraint. They are the convex envelope of a unitary invariant norm and the indicator function of an upper bounding rank constraint. The most well-known member of this family is the so-called nuclear norm. To solve optimization problems involving such norms with proximal splitting methods, efficient ways of evaluating the proximal mapping of the low-rank inducing norms are needed. This is known for the nuclear norm, but not for most other members of the low-rank inducing family. This work supplies a framework that reduces the proximal mapping evaluation into a nested binary search, in which each iteration requires the solution of a much simpler problem. This simpler problem can often be solved analytically as it is demonstrated for the so-called low-rank inducing Frobenius and spectral norms. Moreover, the framework allows to compute the proximal mapping of compositions of these norms with increasing convex functions and the projections onto their epigraphs. This has the additional advantage that we can also deal with compositions of increasing convex functions and low-rank inducing norms in proximal splitting methods.
Magnetic excitations in coupled Haldane spin chains near the quantum critical point
Creators: name: Zheludev, A.
name: Masuda, T.
name: Tsukada, I.
name: Uchiyama, Y.
name: Uchinokura, K.
name: Boni, P.
name: Lee, S. -H.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Two quasi-1-dimensional S=1 quantum antiferromagnetic materials, PbNi2V2O8 and SrNi2V2O8, are studied by inelastic neutron scattering on powder samples. While magnetic interactions in the two systems are found to be very similar, subtle differences in inter-chain interaction strengths and magnetic anisotropy are detected. The latter are shown to be responsible for qualitatively different ground state properties: magnetic long-range order in SrNi2V2O8 and disordered ``spin liquid'' Haldane-gap state in PbNi2V2O8.
description: 15 figures, Figs. 5,9, and 10 in color. Some figures in JPEG format. Complete PostScript and PDF available from http://papillon.phy.bnl.gov/publicat.htm
Stripe order at low temperatures in La{2-x}Sr{x}NiO4 for 1/3 < x < 1/2
Creators: name: Yoshizawa, H.
name: Kakeshita, T.
name: Kajimoto, R.
name: Tanabe, T.
name: Katsufuji, T.
name: Tokura, Y.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Stripe order in La{2-x}Sr{x}NiO4 beyond x = 1/3 was studied with neutron scattering technique. At low temperatures, all the samples exhibit hole stripe order. Incommensurability εof the stripe order is approximately linear in the hole concentration n_h = x + 2δup to x = 1/2, where δdenotes the off-stoichiometry of oxygen atoms. The charge and spin ordering temperatures exhibit maxima at n_h = 1/3, and both decrease beyond n_h > 1/3. For 1/3 < n_h < 1/2, the stripe ordering consists of the mixture of the ε= 1/3 stripe order and the n_h = 1/2 charge/spin order.
description: REVTeX, 4 pages, 4 figures
title: Strengthening EU-Southern Neighbourhood Relations
title: The Imperative of Equal Partnerships in the  Green Energy Transition
titleType: Subtitle
Creators: name: Ayadi, Rym
name: Ronco, Sara
name: Stotts-Lee, Elena
name: Weiss, Stefani
Publisher: name: Bertelsmann Stiftung
publisherIdentifier: https://ror.org/01wj9hk44
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Green Energy Transition
European Union
Southern Neighbourhood

description: This study underscores the pivotal role of green energy cooperation between the EU and its Southern Neighbourhood as a transformative pathway towards strengthening bilateral relations. It emphasizes the geopolitical imperative for the EU to bolster its ties with this region, crucial in today's evolving geopolitical landscape. By prioritizing equitable green energy initiatives, both regions can not only reshape their energy landscapes but also foster a partnership grounded in mutual respect and collective progress.

The study advocates for an approach centered on equity, ensuring that the transition to renewable energy addresses both the EU's environmental and energy security needs while catalyzing economic development and sustainability in the Southern Neighbourhood. It highlights the importance of collaborative efforts in technology transfer, capacity building, and innovative financing mechanisms to create a resilient and sustainable energy infrastructure benefiting both regions.

The study's recommendations offer a roadmap for a fair and cooperative green transition, aligning efforts with broader goals of sustainable development and mutual prosperity.
The first study of 54 new eccentric eclipsing binaries in our Galaxy
Creators: name: Zasche, P.
name: Wolf, M.
name: Uhlar, R.
name: Cagas, P.
name: Jurysek, J.
name: Masek, M.
name: Honkova, K.
name: Kucakova, H.
name: Lehky, M.
name: Kotkova, L.
name: White, G. J.
name: Bewsher, D.
name: Tylsar, M.
name: Jelinek, M.
name: Paschke, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an analysis of the apsidal motion and light curve parameters of 54 never-before-studied galactic Algol-type binaries. This is the first analysis of such a large sample of eccentric eclipsing binaries in our Galaxy, and has enabled us to identify several systems that are worthy of further study. Bringing together data from various databases and surveys, supplemented with new observations, we have been able to trace the long-term evolution of the eccentric orbit over durations extending back up to several decades. Our present study explores a rather different sample of stars to those presented in the previously published catalogue of eccentric eclipsing binaries, sampling to fainter magnitudes, covering later spectral types, sensitive to different orbital periods with more than 50% of our systems having periods longer than six days. The typical apsidal motion in the sample is rather slow (mostly of order of centuries long), although in some cases this is less than 50 yr. All of the systems, except one, have eccentricities less than 0.5, with an average value of 0.23. Several of the stars also show evidence for additional period variability. In particular we can identify three systems in the sample, HD 44093, V611 Pup, and HD 313631, which likely represent relativistic apsidal rotators.
description: 8 pages of text, many sets of figures, include also appendix large list of minima times, published in 2018A&A...619A..85Z
Stylogyne orinocensis Mez
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
Magnoliopsida
Ericales
Primulaceae
Stylogyne
Stylogyne orinocensis

description: [1418] Stylogyne orinocensis (Kunth) Mez
 Pflanzenr. [Engler] IV.236 (Heft 9): 270 [6 May 1902] (Mez 1902). — Ardisia orinocensis Kunth, Nova genera et species plantarum [H.B.K.] 3: 244 [9 July 1819] (Kunth 1819). — Tinus orinocensis (Kunth) Kuntze, Revis. Gen. Pl. 2: 974 [5 Nov. 1891] (Kuntze 1891).
 Badula schomburgkiana A.DC., Ann. Sci. Nat., Bot. sér. 2, 16: 90 (Candolle 1841). — Ardisia schomburgkiana (A.DC.) Miq., Fl. Bras. [Martius] 10: 289 [15 Mar. 1856] (Miquel 1856). — Tinus schomburgkiana (A.DC.) Kuntze, Revis. Gen. Pl. 2: 975 [5 Nov. 1891] (Kuntze 1891). — Stylogyne schomburgkiana (A.DC.) Mez, Pflanzenr. [Engler] IV.236 (Heft 9): 270 [6 May 1902] (Mez 1902).
 Badula schomburgkiana var. brasiliensis A.DC., Prodr. [A. P. de Candolle] 8: 111 [mid Mar. 1844] (Candolle 1844). — Stylogyne brasiliensis (A.DC.) Mez, Pflanzenr. [Engler] IV.236 (Heft 9): 269 [6 May 1902] (Mez 1902).
 Ardisia hostmannii Miq., Fl. Bras. [Martius] 10: 288 [15 Mar. 1856] (Miquel 1856), “ hostmanni ”. — Tinus hostmannii (Miq.) Kuntze, Revis. Gen. Pl. 2: 974 [5 Nov. 1891] (Kuntze 1891).
 Ardisia surinamensis Miq., Fl. Bras. [Martius] 10: 288 [15 Mar. 1856] (Miquel 1856). — Tinus surinamensis (Miq.) Kuntze, Revis. Gen. Pl. 2: 975 [5 Nov. 1891] (Kuntze 1891). — Stylogyne surinamensis (Miq.) Mez, Pflanzenr. [Engler] IV.236 (Heft 9): 271 [6 May 1902] (Mez 1902).
 Stylogyne micans Mez, Pflanzenr. [Engler] IV.236 (Heft 9): 272 [6 May 1902] (Mez 1902).
 Stylogyne poeppigii Mez, Pflanzenr. [Engler] IV.236 (Heft 9): 274 [6 May 1902] (Mez 1902).
 Stylogyne amazonica Mez, Pflanzenr. [Engler] IV.236 (Heft 9): 275 [6 May 1902] (Mez 1902).
 Stylogyne kappleri Mez, Pflanzenr. [Engler] IV.236 (Heft 9): 275 [6 May 1902] (Mez 1902).
VERNACULAR NAMES. — Pa: pune-etni-priye (for Stylogyne sp.) • Ka: payawalu.
 HERBARIUM DATA (FG). — 2 collections at CAY. Sel. exs.: C. Moretti 606.
SIZE. — Up to 14 m tall (Ricketson & Pipoly 2010).
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 646, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Solution of a Generalized Stieltjes Problem
Creators: name: Shastry, B. Sriram
name: Dhar, Abhishek
Publisher: name: arXiv
Year: 2001
Subjects: subject: Condensed Matter (cond-mat)
subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present the exact solution for a set of nonlinear algebraic equations $\frac{1}{z_l}= πd + \frac{2 d}{n} \sum_{m \neq l} \frac{1}{z_l-z_m}$. These were encountered by us in a recent study of the low energy spectrum of the Heisenberg ferromagnetic chain \cite{dhar}. These equations are low $d$ (density) ``degenerations'' of more complicated transcendental equation of Bethe's Ansatz for a ferromagnet, but are interesting in themselves. They generalize, through a single parameter, the equations of Stieltjes, $x_l = \sum_{m \neq l} 1/(x_l-x_m)$, familiar from Random Matrix theory. It is shown that the solutions of these set of equations is given by the zeros of generalized associated Laguerre polynomials. These zeros are interesting, since they provide one of the few known cases where the location is along a nontrivial curve in the complex plane that is determined in this work. Using a ``Green's function'' and a saddle point technique we determine the asymptotic distribution of zeros.
description: 19 pages, 4 figures
Critical Clearing Time Sensitivity for Inequality Constrained Systems
Creators: name: Mishra, Chetan
name: Pal, Anamitra
name: Centeno, Virgilio A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Systems and Control (eess.SY)
subject: Dynamical Systems (math.DS)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: From a stability perspective, a renewable generation (RG)-rich power system is a constrained system. As the quasistability boundary of a constrained system is structurally very different from that of an unconstrained system, finding the sensitivity of critical clearing time (CCT) to change in system parameters is very beneficial for a constrained power system, especially for planning/revising constraints arising from system protection settings. In this paper, we derive the first order sensitivity of a constrained power system using trajectory sensitivities of fault-on and post-fault trajectories. The results for the test system demonstrate the dependence between ability to meet angle and frequency constraints, and change in power system parameters such as operating conditions and inertia.
description: To appear in IEEE PES General Meeting 2019
Charged domain walls as quantum strings living on a lattice
Creators: name: Eskes, Henk
name: Osman, Osman Yousif
name: Grimberg, Rob
name: van Saarloos, Wim
name: Zaanen, Jan
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A generic lattice cut-off model is introduced describing the quantum meandering of a single cuprate stripe. The fixed point dynamics is derived, showing besides free string behavior a variety of partially quantum disordered phases, bearing relationships both with quantum spin-chains and surface statistical physics.
description: 22 page, 17 figures
The CARMENES search for exoplanets around M dwarfs: The warm super-Earths in twin orbits around the mid-type M dwarfs Ross 1020 (GJ 3779) and LP 819-052 (GJ 1265)
Creators: name: Luque, R.
name: Nowak, G.
name: Pallé, E.
name: Kossakowski, D.
name: Trifonov, T.
name: Zechmeister, M.
name: Béjar, V. J. S.
name: Guillén, C. Cardona
name: Tal-Or, L.
name: Hidalgo, D.
name: Ribas, I.
name: Reiners, A.
name: Caballero, J. A.
name: Amado, P. J.
name: Quirrenbach, A.
name: Aceituno, J.
name: Cortés-Contreras, M.
name: Díez-Alonso, E.
name: Dreizler, S.
name: Guenther, E. W.
name: Henning, T.
name: Jeffers, S. V.
name: Kaminski, A.
name: Kürster, M.
name: Lafarga, M.
name: Montes, D.
name: Morales, J. C.
name: Passegger, V. M.
name: Schmitt, J. H. M. M.
name: Schweitzer, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We announce the discovery of two planetary companions orbiting around the low mass stars Ross 1020 (GJ 3779, M4.0V) and LP 819-052 (GJ 1265, M4.5V). The discovery is based on the analysis of CARMENES radial velocity observations in the visual channel as part of its survey for exoplanets around M dwarfs. In the case of GJ 1265, CARMENES observations were complemented with publicly available Doppler measurements from HARPS. The datasets reveal one planetary companion for each star that share very similar properties: minimum masses of $8.0\pm0.5$ M$_{\oplus}$ and $7.4\pm0.5$ M$_{\oplus}$ in low-eccentricity orbits with periods of $3.023\pm0.001$ d and $3.651\pm0.001$ d for GJ 3779 b and GJ 1265 b, respectively. The periodic signals around three days found in the radial velocity data have no counterpart in any spectral activity indicator. Besides, we collected available photometric data for the two host stars, which confirm that the additional Doppler variations found at periods around 95 d can be attributed to the rotation of the stars. The addition of these planets in a mass-period diagram of known planets around M dwarfs suggests a bimodal distribution with a lack of short-period low-mass planets in the range of 2-5 M$_{\oplus}$. It also indicates that super-Earths (> 5 M$_{\oplus}$) currently detected by radial velocity and transit techniques around M stars are usually found in systems dominated by a single planet.
description: Accepted for publication in A&A. 15 pages, 12 figures, 4 tables
Galaxy Rotation Curve of Triangulum Galaxy (M-33) By Using New Quantum Gravity Theory
Creators: name: Ravindra Mundase
Publisher: name: figshare
Year: 2019
Subjects: Astrophysics

description: A detailed study of roatation curve of triangulum galaxy(M33) has been done using new quantum gravity theory.The new quantum gravity theory is based on baryonic matter only. This new theory is not based on the dark matter. Hence the existence of dark matter is rejected. The new theory is different from Newton’s gravitational theory or any other gravitational theory postulated at present. The new theory is non-relativistic theory in which space and time are constant and not related to each other. This theory is a quantum gravity theory in which gravity is made up of small quantas.It is observed that the theoretical rotational velocities curve form a cusp at the radius of 20 kly. This is a dominant and most important aspect of new quantum gravitational theory. The halo cusp problem cannot be solved by dark matter hypothesis. Inability to solve halo cusp problem is main drawback of dark matter hypothesis. This new quantum gravitational theory solves the halo cusp problem of rotation curve of galaxy.