cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hopf fibration and monopole connection over the contact quantum spheres
Creators: name: Brzezinski, Tomasz
name: Dabrowski, Ludwik
name: Zielinski, Bartosz
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary 58B34; Secondary 17B37

description: Noncommutative geometry of quantised contact spheres introduced by Omori, Maeda, Miyazaki and Yoshioka is studied. In particular it is proven that these spheres form a noncommutative Hopf fibration in the sense of Hopf-Galois extensions. The monopole (strong) connection is constructed, and projectors describing projective modules of all monopole charges are computed.
description: 15 pages, LaTeX
Apareiodon agmatos Taphorn, Lopez-Fernandez & Bernard 2008
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Characiformes
Parodontidae
Apareiodon
Apareiodon agmatos

description: Apareiodon agmatos Taphorn, López-Fernández & Bernard, 2008: 34, fig. 1.
Paratypes: 1 lot, 5 specimens —NUP 5950, 5, 41.6–49.1 mm SL, Guyana, Mazaruni river drainage, sandy beach and embayment on right bank, upstream from village of Jawalla, 5°41’35.4” N, 60°28’11.8” W, H. López-Fernández, D.C. Taphorn, E. Liverpool, K. Kramer, C. Thierens, 18 Apr 2008.
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 5, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
Pseudocryptobium spinolae
Creators: name: Asenjo, Angélico
name: e, Sistemática
name: de, Bioecologia
name: Coleoptera
name: Zoologia
name: Federal, Universidade
name: Cep
name: Curitiba
name: Irmler, Ulrich
name: Klimaszewski, Jan
name: Herman, Lee H.
name: Chandler, Donald S.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Pseudocryptobium
Pseudocryptobium spinolae

description: Pseudocryptobium spinolae (Guérin-Méneville 1844: 13)
 Distribution. Brazil?, Colombia.
 Brazilian Biome. Amazon forest.
 Locality records. AMAZONAS: Without specific locality Guérin-Méneville 1855: 583.
description: Published as part of Asenjo, Angélico, e, Sistemática, de, Bioecologia, Coleoptera, Zoologia, Federal, Universidade, Cep, Curitiba, Irmler, Ulrich, Klimaszewski, Jan, Herman, Lee H. & Chandler, Donald S., 2013, A complete checklist with new records and geographical distribution of the rove beetles (Coleoptera, Staphylinidae) of Brazil, pp. 1-419 in Insecta Mundi 2013 (277) on page 249, DOI: 10.5281/zenodo.5184652
MOESM1 of A prospective study of hepatic safety of statins used in very elderly patients
Creators: name: Meizi Guo
name: Junli Zhao
name: Yingjiu Zhai
name: Panpan Zang
name: Lv, Qing
name: Dongya Shang
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Additional file 1: Table S1. Clinical characteristics of total population.
Argument Component Classification for Classroom Discussions
Creators: name: Lugini, Luca
name: Litman, Diane
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: This paper focuses on argument component classification for transcribed spoken classroom discussions, with the goal of automatically classifying student utterances into claims, evidence, and warrants. We show that an existing method for argument component classification developed for another educationally-oriented domain performs poorly on our dataset. We then show that feature sets from prior work on argument mining for student essays and online dialogues can be used to improve performance considerably. We also provide a comparison between convolutional neural networks and recurrent neural networks when trained under different conditions to classify argument components in classroom discussions. While neural network models are not always able to outperform a logistic regression model, we were able to gain some useful insights: convolutional networks are more robust than recurrent networks both at the character and at the word level, and specificity information can help boost performance in multi-task training.
Finding the remnants of lost jets at RHIC
Creators: name: Pal, Subrata
name: Pratt, Scott
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A fast jet propagating through partonic matter loses energy by medium-induced gluon radiation. We propose a method to detect the energy loss of jets and the final-state interaction of the radiated gluons and the jets with the partonic medium. By embedding jets and radiated energy into a parton cascade, we find that the fate of lost jets can be studied by analyzing the momentum distribution of soft hadrons relative to the jet axis.
description: 5 pages, Revtex, 2 figs, Revised Version, To appear in PLB
Automatic detection of full ring galaxy candidates in SDSS
Creators: name: Shamir, Lior
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: A full ring is a form of galaxy morphology that is not associated with a specific stage on the Hubble sequence. Digital sky surveys can collect many millions of galaxy images, and therefore even rare forms of galaxies are expected to be present in relatively large numbers in image databases created by digital sky surveys. Sloan Digital Sky Survey (SDSS) data release (DR) 14 contains ~2.6*10^6 objects with spectra identified as galaxies. The method described in this paper applied automatic detection to identify a set of 443 ring galaxy candidates, 104 of them were already included in the Buta + 17 catalogue of ring galaxies in SDSS, but the majority of the galaxies are not included in previous catalogues. Machine analysis cannot yet match the superior pattern recognition abilities of the human brain, and even a small false positive rate makes automatic analysis impractical when scanning through millions of galaxies. Reducing the false positive rate also increases the true negative rate, and therefore the catalogue of ring galaxy candidates is not exhaustive. However, due to its clear advantage in speed, it can provide a large collection of galaxies that can be used for follow-up observations of objects with ring morphology.
description: MNRAS, accepted
The Theory of the Firm and the Concept of an Elasticity of Substitution in Product Space
Creators: name: Debertin, David L.
name: Debertin, David L.
Publisher: name: Unknown
Year: 1987
Subjects: subject: Production Economics
subject: Research Methods/ Statistical Methods
subject: production economics
subject: product space
subject: multiple products

description: Much of the theory of the firm in product space is not nearly as well developed as the theory of the firm in factor space. For example, both general and agricultura1 economists have devoted considerable effort to developing functional forms representing production processes in factor space, but the companion effort in product space has been very limited. The purpose of this paper is to present some product-space concepts analogous to those commonly used in factor space.
High-Resolution Computer Graphics: A Research and Educational Tool in Production Economics
Creators: name: Debertin, David L.
name: Bradford, Garnett L.
name: Debertin, David L.
name: Bradford, Garnett L.
Publisher: name: Unknown
Year: 1988
Subjects: subject: Production Economics
subject: Research Methods/ Statistical Methods
subject: Teaching/Communication/Extension/Profession
subject: computer graphics
subject: production economics
subject: production functions

description: This paper investigates some applications of high-resolution, three­ dimensional PC-based computer graphics to research and education in agricultural production economics. Examples illustrate issues in the identification of stages of production for the multifactor case; special cases in which second-order conditions for extrema are violated; neoclassical cost functions in two-product space; and CES-type functions in two-product space.
Mass constraints for 15 protoplanetary disks from HD 1-0
Creators: name: Kama, M.
name: Trapman, L.
name: Fedele, D.
name: Bruderer, S.
name: Hogerheijde, M. R.
name: Miotello, A.
name: van Dishoeck, E. F.
name: Clarke, C.
name: Bergin, E. A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Hydrogen deuteride (HD) rotational line emission can provide reliable protoplanetary disk gas mass measurements, but it is difficult to observe and detections have been limited to three T-Tauri disks. No new data have been available since the \emph{Herschel} Space Observatory mission ended in 2013. We set out to obtain new disk gas mass constraints by analysing upper limits on HD 1-0 emission in \emph{Herschel}/PACS archival data from the DIGIT key programme. With a focus on the Herbig Ae/Be disks, whose stars are more luminous than T Tauris, we determine upper limits for HD in data previosly analysed for its line detections. Their significance is studied with a grid of models run with the DALI physical-chemical code, customised to include deuterium chemistry. Nearly all the disks are constrained to $M_{\rm gas}\leq0.1\,$M$_{\odot}$, ruling out global gravitational instability. A strong constraint is obtained for the HD 163296 disk mass, $M_{\rm gas} \leq 0.067\,$M$_{\odot}$, implying $Δ_{\rm g/d}\leq100$. This HD-based mass limit is towards the low end of CO-based mass estimates for the disk, highlighting the large uncertainty in using only CO and suggesting that gas-phase CO depletion in HD 163296 is at most a factor of a few. The $M_{\rm gas}$ limits for HD 163296 and HD 100546, both bright disks with massive candidate protoplanetary systems, suggest disk-to-planet mass conversion efficiencies of $M_{\rm p}/(M_{\rm gas} + M_{\rm p})\approx10$ to $40\,$% for present-day values. Near-future observations with SOFIA/HIRMES will be able to detect HD in the brightest Herbig~Ae/Be disks within $150\,$pc with $\approx10\,$h integration time.
description: Accepted for publication in A&A
Pycnocrypta gigas
Creators: name: Asenjo, Angélico
name: e, Sistemática
name: de, Bioecologia
name: Coleoptera
name: Zoologia
name: Federal, Universidade
name: Cep
name: Curitiba
name: Irmler, Ulrich
name: Klimaszewski, Jan
name: Herman, Lee H.
name: Chandler, Donald S.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Pycnocrypta
Pycnocrypta gigas

description: Pycnocrypta gigas (Sharp 1876c: 210)
 Distribution. Brazil.
 Brazilian Biome. Amazon forest.
 Locality records. AMAZONAS: Tefé [Ega] Sharp 1876c: 211. Without specific locality Bernhauer and Schubert 1912: 283. WITHOUT SPECIFIC STATE: Without specific locality Blackwelder 1944: 125.
description: Published as part of Asenjo, Angélico, e, Sistemática, de, Bioecologia, Coleoptera, Zoologia, Federal, Universidade, Cep, Curitiba, Irmler, Ulrich, Klimaszewski, Jan, Herman, Lee H. & Chandler, Donald S., 2013, A complete checklist with new records and geographical distribution of the rove beetles (Coleoptera, Staphylinidae) of Brazil, pp. 1-419 in Insecta Mundi 2013 (277) on page 249, DOI: 10.5281/zenodo.5184652
Apareiodon vladii Pavanelli 2006
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Characiformes
Parodontidae
Apareiodon
Apareiodon vladii

description: Apareiodon vladii Pavanelli, 2006: 90, fig. 1.
Paratypes: 2 lots, 14 specimens —NUP 3374, 5, 84.5–100.8 mm SL, rio Piquiri, approximately 5 km from Paiquerê village, Nova Laranjeiras, Paraná State, Brazil, 25°01’40.9”S, 52°27’32.8”W, 455 meters a.s.l., V. P. Margarido, 15 April 2004. NUP 3376, 9 (3, 85.3–99.9 mm SL + 6 eviscerated for cytogenetic analysis, 98.6–107.0 mm SL): same locality and collectors as previous, 20 May 2004.
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 5, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
Some Remarks on Group Bundles and C*-dynamical systems
Creators: name: Vasselli, Ezio
Publisher: name: arXiv
Year: 2003
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L05, 55R10, 22D45

description: We introduce the notion of fibred action of a group bundle on a C(X)-algebra. By using such a notion, a characterization in terms of induced C*-bundles is given for C*-dynamical systems such that the relative commutant of the fixed-point algebra is minimal (i.e., it is generated by the centre of the given C*-algebra and the centre of the fixed-point algebra). A class of examples in the setting of the Cuntz algebra is given, and connections with superselection structures with nontrivial centre are discussed.
description: 22 pages; to appear on Comm. Math. Phys
Molecular envelope around the HII region RCW 120
Creators: name: Kirsanova, M. S.
name: Pavlyuchenkov, Ya N.
name: Wiebe, D. S.
name: Boley, P. A.
name: Salii, S. V.
name: Kalenskii, S. V.
name: Sobolev, A. M.
name: Anderson, L. D
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The H II region RCW120 is a well-known object, which is often considered as a target to verify theoretical models of gas and dust dynamics in the interstellar medium. However, the exact geometry of RCW120 is still a matter of debate. In this work, we analyse observational data on molecular emission in RCW120 and show that 13CO(2-1) and C18O(2-1) lines are fitted by a 2D model representing a ring-like face-on structure. The changing of the C18O(3-2) line profile from double-peaked to single-peaked from the dense molecular Condensation 1 might be a signature of stalled expansion in this direction. In order to explain a self-absorption dip of the 13CO(2-1) and 13CO(3-2) lines, we suggest that RCW120 is surrounded by a diffuse molecular cloud, and find confirmation of this cloud on a map of interstellar extinction. Optically thick 13CO(2-1) emission and the infrared 8 um PAH band form a neutral envelope of the H II region resembling a ring, while the envelope breaks into separate clumps on images made with optically thin C18O(2-1) line and far-infrared dust emission.
description: accepted to MNRAS
Additional file of WSES-AAST guidelines: management of inflammatory bowel disease in the emergency setting
Creators: name: De Simone, Belinda
name: Davies, Justin
name: Chouillard, Elie
name: Salomone Di Saverio
name: Hoentjen, Frank
name: Tarasconi, Antonio
name: Sartelli, Massimo
name: Biffl, Walter L.
name: Ansaloni, Luca
name: Coccolini, Federico
name: Chiarugi, Massimo
name: De’Angelis, Nicola
name: Moore, Ernest E.
name: Kluger, Yoram
name: Abu-Zidan, Fikri
name: Sakakushev, Boris
name: Coimbra, Raul
name: Celentano, Valerio
name: Wani, Imtiaz
name: Pintar, Tadeja
name: Sganga, Gabriele
name: Di Carlo, Isidoro
name: Tartaglia, Dario
name: Pikoulis, Manos
name: Cardi, Maurizio
name: De Moya, Marc A.
name: Leppaniemi, Ari
name: Kirkpatrick, Andrew
name: Agnoletti, Vanni
name: Poggioli, Gilberto
name: Carcoforo, Paolo
name: Baiocchi, Gian Luca
name: Catena, Fausto
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file of WSES-AAST guidelines: management of inflammatory bowel disease in the emergency setting
Evolution and Nucleosynthesis of Massive Stars and Related Nuclear Uncertainties
Creators: name: Rauscher, T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Properties of atomic nuclei important for the prediction of astrophysical reaction rates are reviewed. In the first part, a recent simulation of evolution and nucleosynthesis of stars between 15 and 25 solar masses is presented. This study is used to illustrate the required nuclear input as well as to give examples of the sensitivity to certain rates. The second part focusses on the prediction of nuclear rates in the statistical model (Hauser-Feshbach) and direct capture (DWBA). Some of the important ingredients are addressed. Discussed in more detail are approaches to predict level densities, parity distributions, and optical alpha+nucleus potentials.
description: Invited talk at 17th Int. Nucl. Phys. Conf. of the EPS "Nuclear Physics in Astrophysics", Debrecen, Hungary, 2002 (new version: fixed typo in alpha potential parameters; note: the parameters are incorrect in the NPA paper)
Scale_self-perception_NF1_visibility_16abril2021.pdf
Creators: name: Melo, Débora
name: Bicudo, Natália
Publisher: name: figshare
Year: 2021
Subjects: subject: 110311 Medical Genetics (excl. Cancer Genetics)
subject: FOS: Basic medicine
subject: 110304 Dermatology
subject: FOS: Clinical medicine

description: A scale to assess the visibility of NF1, which can be accessed remotely and applied by the own patient.
Pycnocrypta mrazi
Creators: name: Asenjo, Angélico
name: e, Sistemática
name: de, Bioecologia
name: Coleoptera
name: Zoologia
name: Federal, Universidade
name: Cep
name: Curitiba
name: Irmler, Ulrich
name: Klimaszewski, Jan
name: Herman, Lee H.
name: Chandler, Donald S.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Pycnocrypta
Pycnocrypta mrazi

description: Pycnocrypta mrazi (Rambousek 1925: 73)
 Distribution. Brazil.
 Brazilian Biome. Atlantic forest.
 Locality records. RIO DE JANEIRO: Petrópolis Bernhauer 1934c: 159. SÃO PAULO: Mogi das Cruzes Rambousek 1925: 74. WITHOUT SPECIFIC STATE: Without specific locality Bierig 1933: 477; Blackwelder 1944: 125; Scheerpeltz 1933: 1295.
description: Published as part of Asenjo, Angélico, e, Sistemática, de, Bioecologia, Coleoptera, Zoologia, Federal, Universidade, Cep, Curitiba, Irmler, Ulrich, Klimaszewski, Jan, Herman, Lee H. & Chandler, Donald S., 2013, A complete checklist with new records and geographical distribution of the rove beetles (Coleoptera, Staphylinidae) of Brazil, pp. 1-419 in Insecta Mundi 2013 (277) on page 249, DOI: 10.5281/zenodo.5184652
Annotating Student Talk in Text-based Classroom Discussions
Creators: name: Lugini, Luca
name: Litman, Diane
name: Godley, Amanda
name: Olshefski, Christopher
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Classroom discussions in English Language Arts have a positive effect on students' reading, writing and reasoning skills. Although prior work has largely focused on teacher talk and student-teacher interactions, we focus on three theoretically-motivated aspects of high-quality student talk: argumentation, specificity, and knowledge domain. We introduce an annotation scheme, then show that the scheme can be used to produce reliable annotations and that the annotations are predictive of discussion quality. We also highlight opportunities provided by our scheme for education and natural language processing research.
MOESM1 of Reproducibility of compartmental modelling of 18F-FDG PET/CT to evaluate lung inflammation
Creators: name: Vass, Laurence
name: Lee, Sarah
name: Wilson, Frederick
name: Fisk, Marie
name: Cheriyan, Joseph
name: Wilkinson, Ian
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1 Online supplement.
Issues of Size and Costs of Education in Rural Areas
Creators: name: Clouser, Rodney L.
name: Debertin, David L.
name: Clouser, Rodney L.
name: Debertin, David L.
Publisher: name: Unknown
Year: 1988
Subjects: subject: Labor and Human Capital
subject: Public Economics
subject: economics of education
subject: educational finance
subject: educational economics
subject: human capital

description: In this paper, a conceptual framework is developed representing the dynamic optimization problem for maximizing educational quality subject to a limited amount of available funds. We then examine how the quality of education offered by a school system and the cost of producing education might be influenced by changes in enrollments (cost-size-quality relationships).
Pycnocrypta plagipennis
Creators: name: Asenjo, Angélico
name: e, Sistemática
name: de, Bioecologia
name: Coleoptera
name: Zoologia
name: Federal, Universidade
name: Cep
name: Curitiba
name: Irmler, Ulrich
name: Klimaszewski, Jan
name: Herman, Lee H.
name: Chandler, Donald S.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Pycnocrypta
Pycnocrypta plagipennis

description: Pycnocrypta plagipennis (Sharp 1876c:211)
 Distribution. Brazil.
 Brazilian Biome. Amazon forest.
 Locality records. AMAZONAS: Tefé [Ega] Sharp 1876c:212. Without specific locality Bernhauer and Schubert 1912: 285. WITHOUT SPECIFIC STATE: Without specific locality Blackwelder 1944: 125.
description: Published as part of Asenjo, Angélico, e, Sistemática, de, Bioecologia, Coleoptera, Zoologia, Federal, Universidade, Cep, Curitiba, Irmler, Ulrich, Klimaszewski, Jan, Herman, Lee H. & Chandler, Donald S., 2013, A complete checklist with new records and geographical distribution of the rove beetles (Coleoptera, Staphylinidae) of Brazil, pp. 1-419 in Insecta Mundi 2013 (277) on page 250, DOI: 10.5281/zenodo.5184652
Fermi surface and quasiparticle dynamics of Na(x)CoO2 {x=0.7} investigated by Angle-Resolved Photoemission Spectroscopy
Creators: name: Hasan, M. Z.
name: Chuang, Y. -D.
name: Kuprin, A. P.
name: Kong, Y.
name: Qian, D.
name: Li, Y. W.
name: Mesler, B. L.
name: Hussain, Z.
name: Fedorov, A. V.
name: Kimmerling, R.
name: Rotenberg, E.
name: Rossnagel, K.
name: Koh, H.
name: Rogado, N. S.
name: Foo, M. L.
name: Cava, R. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present an angle-resolved photoemission study of Na0.7CoO2, the host cobaltate of the NaxCoO2.yH2O series. Our results show a large hexagonal-like hole-type Fermi surface, an extremely narrow strongly renormalized quasiparticle band and a small Fermi velocity. Along the Gamma to M high symmetry line, the quasiparticle band crosses the Fermi level from M toward Gamma consistent with a negative sign of effective single-particle hopping (t ): t is estimated to be about 8 meV which is on the order of exchange coupling J in this system. This suggests that t ~ J ~ 10 meV is an important energy scale in the system. Quasiparticles are well defined only in the T-linear resistivity regime. Small single particle hopping and unconventional quasiparticle dynamics may have implications for understanding the unusual behavior of this new class of compounds.
description: Revised text, Added Figs, Submitted to PRL
MOESM1 of SyRI: finding genomic rearrangements and local sequence differences from whole-genome assemblies
Creators: name: Goel, Manish
name: Hequan Sun
name: Jiao, Wen-Biao
name: Schneeberger, Korbinian
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Computational Biology

description: Additional file 1. Additional notes and figures - Additional notes describing the method and additional results
A hunt for ultrahard materials
Creators: name: Solozhenko, Vladimir L.
name: Godec, Yann Le
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recent results on search (theoretical prediction, high-pressure synthesis, etc.) for novel superhard and ultrahard materials are briefly reviewed.
Metynnis cuiaba Pavanelli, Ota & Petry 2009
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Characiformes
Serrasalmidae
Metynnis
Metynnis cuiaba

description: Metynnis cuiaba Pavanelli, Ota & Petry, 2009: 143, fig. 1.
Paratypes: 13 lots, 21 specimens —NUP 2055, 2, 103.2– 119.3 mm SL: Brazil, Mato Grosso, Barão do Melgaço / Santo Antônio do Leverger, baía Sinhá Mariana, rio Cuiabá, rio Paraguai basin, 16°20’20”S, 55°54’10”W, Nupélia staff, 21 Nov 2003. NUP 2933, 1, 80.8 mm SL: same locality and collectors as previous, 21 Jun 2003. NUP 3276, 1, 131.1 mm SL: same locality and collectors as previous, 20 Nov 2003. NUP 4782, 5, 104.5– 137.4 mm SL: same locality and collectors as previous, 26 Jan 2001. NUP 5211, 1, 63.0 mm SL: same locality and collectors as previous, 23 Jul 2002. NUP 5220, 1, 130.1 mm SL: same locality and collectors as previous, 24 Apr 2000. NUP 5264, 2, 61.4–72.4 mm SL: same locality and collectors as previous, 24 Jul 2002. NUP 5265, 1, 70.4 mm SL: same locality and collectors as previous, 14 Aug 2002. NUP 5266, 1, 115.7 mm SL: same locality as previous, 15 Dec 2002. NUP 5267, 1, 59.2 mm SL: same locality and collector as previous, 21 Jun 2003. NUP 5268, 1, 98.5 mm SL: same locality as previous, 26 Jul 2003. NUP 4983, 2, 42.5–48.3 mm SL: Brazil, Mato Grosso, Chapada dos Guimarães, Nobres / Barão de Melgaço, baía Tia Chica at rio Manso, rio Paraguai basin, 14°52’21”S, 55°47’53”W, Nupélia staff, 20 Jul 1998. NUP 5213, 2, 64.9–72.2 mm SL: Brazil, Mato Grosso, Manso Reservoir at rio Manso, rio Paraguai basin, 14°52’22”S, 55°46’28”W, Nupélia staff, 15 Aug 2003.
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 5, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
Pay For Locally Monitored Performance- A Welfare Analysis for Teacher Attendance in Ugandan Primary Schools
Creators: name: Jacobus, Cilliers
name: Ibrahim, Kasirye
name: Clare, Leaver
name: Pieter, Serneels
name: Andrew, Zeitlink
name: Jacobus, Cilliers
name: Ibrahim, Kasirye
name: Clare, Leaver
name: Pieter, Serneels
name: Andrew, Zeitlink
Publisher: name: Unknown
Year: 2016
Subjects: Institutional and Behavioral Economics
Labor and Human Capital
Public Economics
Resource /Energy Economics and Policy
Risk and Uncertainty
Teaching/Communication/Extension/Profession

description: Public sector organizations often rely on reports by local monitors that are costly to verify and that serve twin objectives: to incentivize agent performance, and to provide information for planning purposes. Received wisdom has it that pay for locally monitored performance (P4LMP) will result in collusion and undermine both objectives. But simple Coasian logic suggests the reverse: P4LMP puts transferable money on the table and may enable interested parties to bargain to a more efficient outcome. This paper develops a theoretical model that shows why, and for which parameters, the welfare-enhancing Coasian scenario exists. Focusing on education, the authors model how the preferences of a teacher (agent) and head-teacher (local monitor) affect actual and reported teacher attendance, and how these equilibrium outcomes depend on the financial stakes attached to reports. To capture the value of information, we also consider the welfare of a bureaucracy that makes a costly policy mistake when holding the wrong belief about teacher performance. We test the model and estimate the predicted effects using data from a field experiment in Ugandan primary schools, randomly varying whether head teachers’ reports of teacher attendance are tied to bonus payments or not. Consistent with Coasian logic, P4LMP increased actual and reported teacher attendance (by 9 and 15 percentage points respectively) and reduced policy mistakes (by 7 percentage points) relative to unincentivized local monitoring. We use these experimental impacts to undertake a detailed cost-benefit analysis and conclude, even under conservative assumptions that welfare improved when paying for locally monitored performance.
Giant Valley-Zeeman Splitting from Spin-Singlet and Spin-Triplet Interlayer Excitons in WSe2/MoSe2 Heterostructure
Creators: name: Wang, Tianmeng
name: Miao, Shengnan
name: Li, Zhipeng
name: Meng, Yuze
name: Lu, Zhengguang
name: Lian, Zhen
name: Blei, Mark
name: Taniguchi, Takashi
name: Watanabe, Kenji
name: Tongay, Sefaattin
name: Smirnov, Dmitry
name: Shi, Su-Fei
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Transition metal dichalcogenides (TMDCs) heterostructure with a type II alignment hosts unique interlayer excitons with the possibility of spin-triplet and spin-singlet states. However, the associated spectroscopy signatures remain elusive, strongly hindering the understanding of the Moire potential modulation of the interlayer exciton. In this work, we unambiguously identify the spin-singlet and spin-triplet interlayer excitons in the WSe2/MoSe2 hetero-bilayer with a 60-degree twist angle through the gate- and magnetic field-dependent photoluminescence spectroscopy. Both the singlet and triplet interlayer excitons show giant valley-Zeeman splitting between the K and K' valleys, a result of the large Lande g-factor of the singlet interlayer exciton and triplet interlayer exciton, which are experimentally determined to be ~ 10.7 and ~ 15.2, respectively, in good agreement with theoretical expectation. The PL from the singlet and triplet interlayer excitons show opposite helicities, determined by the atomic registry. Helicity-resolved photoluminescence excitation (PLE) spectroscopy study shows that both singlet and triplet interlayer excitons are highly valley-polarized at the resonant excitation, with the valley polarization of the singlet interlayer exciton approaches unity at ~ 20 K. The highly valley-polarized singlet and triplet interlayer excitons with giant valley-Zeeman splitting inspire future applications in spintronics and valleytronics.
Multimode Lasing in Wave-Chaotic Semiconductor Microlasers
Creators: name: Cerjan, Alexander
name: Bittner, Stefan
name: Constantin, Marius
name: Guy, Mikhail
name: Zeng, Yongquan
name: Wang, Qi Jie
name: Cao, Hui
name: Stone, A. Douglas
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate experimentally and theoretically the lasing behavior of dielectric microcavity lasers with chaotic ray dynamics. Experiments show multimode lasing for both D-shaped and stadium-shaped wave-chaotic cavities. Theoretical calculations also find multimode lasing for different shapes, sizes and refractive indices. While there are quantitative differences between the theoretical lasing spectra of the stadium and D-cavity, due to the presence of scarred modes with anomalously high quality factors, these differences decrease as the system size increases, and are also substantially reduced when the effects of surface roughness are taken into account. Lasing spectra calculations are based on Steady-State Ab Initio Laser Theory, and indicate that gain competition is not sufficient to result in single-mode lasing in these systems.
description: 15 pages, 9 figures
Pycnocrypta quadratipennis
Creators: name: Asenjo, Angélico
name: e, Sistemática
name: de, Bioecologia
name: Coleoptera
name: Zoologia
name: Federal, Universidade
name: Cep
name: Curitiba
name: Irmler, Ulrich
name: Klimaszewski, Jan
name: Herman, Lee H.
name: Chandler, Donald S.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Pycnocrypta
Pycnocrypta quadratipennis

description: Pycnocrypta quadratipennis (Bernhauer 1934c: 159)
 Distribution. Brazil.
 Brazilian Biome. Atlantic forest.
 Locality records. RIO DE JANEIRO: Petrópolis Bernhauer 1934c: 160. Without specific locality Bernhauer 1934c: 160. WITHOUT SPECIFIC STATE: Without specific locality Blackwelder 1944: 125.
description: Published as part of Asenjo, Angélico, e, Sistemática, de, Bioecologia, Coleoptera, Zoologia, Federal, Universidade, Cep, Curitiba, Irmler, Ulrich, Klimaszewski, Jan, Herman, Lee H. & Chandler, Donald S., 2013, A complete checklist with new records and geographical distribution of the rove beetles (Coleoptera, Staphylinidae) of Brazil, pp. 1-419 in Insecta Mundi 2013 (277) on page 250, DOI: 10.5281/zenodo.5184652
What Happened to Illinois’ Economy Following the January 2011 Tax Increases? A Midwestern Comparison
Creators: name: Crosby, Andrew W.
name: Merriman, David F.
name: Crosby, Andrew W.
name: Merriman, David F.
Publisher: name: Unknown
Year: 2016
Subjects: Agricultural and Food Policy
Environmental Economics and Policy

description: In January 2011, Illinois enacted legislation that substantially increased personal and corporate tax rates. Academic researchers and policymakers frequently reach divergent conclusions as to the effect of such increases on economic activity. Using employment, unemployment, and average weekly earnings data, we find that Illinois’ economy has performed less well than expected compared to a control group of Midwestern peers since January 2011. We find that, compared to historical patterns, Illinois’ employment is about 1.8 percent lower than we would expect and Illinois is losing six-one hundredths of a percent of employment relative to the rest of the Midwest each month. Also, Illinois’ unemployment rate is about 1.25 percent higher than would be expected. This can be attributed to many factors, including the income tax increase.
Study of the decay mode D^0 -> K-K-K+pi+
Creators: name: FOCUS Collaboration
name: Link, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement of the branching ratio for the Cabibbo-favored decay mode $D^0 \to K^-K^-K^+π^+$. From a sample of $143 \pm 19$ fully reconstructed $D^0 \to K^-K^-K^+π^+$ events, we measure $Γ(D^0 \to K^-K^-K^+π^+)/Γ(D^0 \to K^-π^-π^+π^+) = 0.00257 \pm 0.00034(stat.) \pm 0.00024(syst.)$. A coherent amplitude analysis has been performed to determine the resonant substructure of this decay mode. This analysis reveals a dominant contribution from $ϕ$ and $\bar K^{*0}(890)$ states.
description: 15 pages, 4 figures, to be submitted to Physics Letters B
Additional file 1 of Structural variations in papaya genomes
Creators: name: Zhenyang Liao
name: Xunxiao Zhang
name: Shengcheng Zhang
name: Zhicong Lin
name: Xingtan Zhang
name: Ming, Ray
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Supplemental Figure S1. Bubble chart of GO enrichment for genes with overlapping SV and CDS regions.
Gnathymenus klimai
Creators: name: Asenjo, Angélico
name: e, Sistemática
name: de, Bioecologia
name: Coleoptera
name: Zoologia
name: Federal, Universidade
name: Cep
name: Curitiba
name: Irmler, Ulrich
name: Klimaszewski, Jan
name: Herman, Lee H.
name: Chandler, Donald S.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Gnathymenus
Gnathymenus klimai

description: Gnathymenus klimai (Bernhauer 1927a: 239)
 Distribution. Brazil.
 Brazilian Biome. Atlantic forest.
 Locality records. RIO DE JANEIRO: Guanabara Herman 1981: 428. Without specific locality Bernhauer 1927a: 239. WITHOUT SPECIFIC STATE: Without specific locality Blackwelder 1944: 126; Scheerpeltz 1933: 1289.
 Gnathymenus plancus Herman 1981: 493
 Distribution. Brazil.
 Brazilian Biome. Atlantic forest, Savannah.
 Locality records. DISTRITO FEDERAL: Brasilia city Herman 1981: 493. PARANÁ: Guarapuava Herman 1981: 493.
 Gnathymenus radulus Herman 1981: 430
 Distribution. Brazil.
 Brazilian Biome. Atlantic forest.
 Locality records. SÃO PAULO: São Paulo city Herman 1981: 430.
 Gnathymenus scoliodontus Herman 1981: 487
 Distribution. Brazil.
 Brazilian Biome. Atlantic forest.
 Locality records. SANTA CATARINA: Nova Teutônia Herman 1981: 488. SÃO PAULO: São Paulo city Herman 1981: 487, 488.
 Gnathymenus setosus Herman 1981: 399
 Distribution. Brazil.
 Brazilian Biome. Atlantic forest.
 Locality records. SÃO PAULO: Barueri Herman 1981: 399.
 Gnathymenus umbus Herman 1981: 397
 Distribution. Brazil.
 Brazilian Biome. Atlantic forest.
 Locality records. SÃO PAULO: São Paulo city Herman 1981: 397.
 Gnathymenus zarzus Herman 1981: 429
 Distribution. Brazil.
 Brazilian Biome. Atlantic forest.
 Locality records. SÃO PAULO: São Paulo city Herman 1981: 429.
description: Published as part of Asenjo, Angélico, e, Sistemática, de, Bioecologia, Coleoptera, Zoologia, Federal, Universidade, Cep, Curitiba, Irmler, Ulrich, Klimaszewski, Jan, Herman, Lee H. & Chandler, Donald S., 2013, A complete checklist with new records and geographical distribution of the rove beetles (Coleoptera, Staphylinidae) of Brazil, pp. 1-419 in Insecta Mundi 2013 (277) on pages 252-253, DOI: 10.5281/zenodo.5184652
Additional file 2 of Structural variations in papaya genomes
Creators: name: Zhenyang Liao
name: Xunxiao Zhang
name: Shengcheng Zhang
name: Zhicong Lin
name: Xingtan Zhang
name: Ming, Ray
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Supplemental Figure S2. KEGG enrichment histogram of genes with overlapping SV and CDS regions.
Treatment of Advanced Divertor Configurations in the Flux-Coordinate Independent turbulence code GRILLIX
Creators: name: Body, Thomas
name: Stegmeir, Andreas
name: Zholobenko, Wladimir
name: Coster, David
name: Jenko, Frank
Publisher: name: arXiv
Year: 2019
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Advanced divertor configurations modify the magnetic geometry of the diverter to achieve a combination of strong magnetic flux expansion, increased connection length and higher divertor volume - to improve detachment stability, neutral/impurity confinement and heat-channel broadening. In this paper, we discuss the modification of the Flux-Coordinate Independent (FCI) turbulence code GRILLIX to treat generalised magnetic geometry, to allow for the investigation of the effect of magnetic geometry on turbulent structures in the edge and SOL. The development of grids and parallel operators from numerically-defined magnetic equilibria is discussed, as is the application of boundary conditions via penalisation, with the finite-width method generalised to treat complex non-conformal boundaries. Initial testing of hyperbolic (advection) and parabolic (diffusion) test cases is presented for the Snowflake scenario.
description: Submitted for 17th International Workshop on Plasma Edge Theory in Fusion Devices
Equilibrium in Heavy Ion Collisions
Creators: name: Koch, V.
name: Majumder, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the question of equilibriation in heavy ion collisions and how it can be addressed in experiment
description: Proceedings 19th Winter Workshop on Nuclear Dynamics, Breckenridge, Co, 2003
Acalophaena germana
Creators: name: Asenjo, Angélico
name: e, Sistemática
name: de, Bioecologia
name: Coleoptera
name: Zoologia
name: Federal, Universidade
name: Cep
name: Curitiba
name: Irmler, Ulrich
name: Klimaszewski, Jan
name: Herman, Lee H.
name: Chandler, Donald S.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Acalophaena
Acalophaena germana

description: Acalophaena germana (Sharp 1876c: 268)
 Distribution. Brazil.
 Brazilian Biome. Amazon forest.
 Locality records. AMAZONAS: Without specific locality Bernhauer and Schubert 1912: 245. PARÁ: Tapajos region Sharp 1876c: 268. WITHOUT SPECIFIC STATE: Without specific locality Blackwelder 1944: 122.
description: Published as part of Asenjo, Angélico, e, Sistemática, de, Bioecologia, Coleoptera, Zoologia, Federal, Universidade, Cep, Curitiba, Irmler, Ulrich, Klimaszewski, Jan, Herman, Lee H. & Chandler, Donald S., 2013, A complete checklist with new records and geographical distribution of the rove beetles (Coleoptera, Staphylinidae) of Brazil, pp. 1-419 in Insecta Mundi 2013 (277) on page 258, DOI: 10.5281/zenodo.5184652
Additional file 3 of Structural variations in papaya genomes
Creators: name: Zhenyang Liao
name: Xunxiao Zhang
name: Shengcheng Zhang
name: Zhicong Lin
name: Xingtan Zhang
name: Ming, Ray
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Supplemental Figure S3. WGCNA module aggregation diagram
Metynnis melanogrammus Ota, Rapp Py-Daniel & Jegu 2016
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Characiformes
Serrasalmidae
Metynnis
Metynnis melanogrammus

description: Metynnis melanogrammus Ota, Rapp Py-Daniel & Jégu 2016: e160023[2], fig. 1a.
Paratype: 1 lot, 1 specimen —NUP 17869, 1, 155.8 mm SL: Brazil, Amazonas, lago Curirarra, 4 hours upstream rio Caurés, Barcelos, 1°20’04”S, 62°21’40”W, Expedition Negro-Caurés, 25 Dec 1976.
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 5, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
MOESM3 of Systematic review on the needle and suture types for uterine compression sutures: a literature review
Creators: name: Matsuzaki, Shinya
name: Jitsumori, Mariko
name: Takeya Hara
name: Matsuzaki, Satoko
name: Nakagawa, Satoshi
name: Miyake, Tatsuya
name: Takiuchi, Tsuyoshi
name: Kakigano, Aiko
name: Kobayashi, Eiji
name: Tomimatsu, Takuji
name: Kimura, Tadashi
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Additional file 3: Table S3 Comparison of uterine preservation rate among different suture sizes in uterine atony cases
Current Limitations in Cyberbullying Detection: on Evaluation Criteria, Reproducibility, and Data Scarcity
Creators: name: Emmery, Chris
name: Verhoeven, Ben
name: De Pauw, Guy
name: Jacobs, Gilles
name: Van Hee, Cynthia
name: Lefever, Els
name: Desmet, Bart
name: Hoste, Véronique
name: Daelemans, Walter
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computation and Language (cs.CL)
subject: Computers and Society (cs.CY)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: The detection of online cyberbullying has seen an increase in societal importance, popularity in research, and available open data. Nevertheless, while computational power and affordability of resources continue to increase, the access restrictions on high-quality data limit the applicability of state-of-the-art techniques. Consequently, much of the recent research uses small, heterogeneous datasets, without a thorough evaluation of applicability. In this paper, we further illustrate these issues, as we (i) evaluate many publicly available resources for this task and demonstrate difficulties with data collection. These predominantly yield small datasets that fail to capture the required complex social dynamics and impede direct comparison of progress. We (ii) conduct an extensive set of experiments that indicate a general lack of cross-domain generalization of classifiers trained on these sources, and openly provide this framework to replicate and extend our evaluation criteria. Finally, we (iii) present an effective crowdsourcing method: simulating real-life bullying scenarios in a lab setting generates plausible data that can be effectively used to enrich real data. This largely circumvents the restrictions on data that can be collected, and increases classifier performance. We believe these contributions can aid in improving the empirical practices of future research in the field.
Differential Astrometry of Sub-arcsecond Scale Binaries at the Palomar Testbed Interferometer
Creators: name: Lane, B. F.
name: Muterspaugh, M. W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used the Palomar Testbed Interferometer to perform very high precision differential astrometry on the 0.25 arcsecond separation binary star HD 171779. In 70 minutes of observation we achieve a measurement uncertainty of approximately 9 micro-arcseconds in one axis, consistent with theoretical expectations. Night-to-night repeatability over four nights is at the level of 16 micro-arcseconds. This method of very-narrow-angle astrometry may be extremely useful for searching for planets with masses as small as 0.5 Jupiter Masses around a previously neglected class of stars -- so-called ``speckle binaries.'' It will also provide measurements of stellar parameters such as masses and distances, useful for constraining stellar models at the 10^-3 level.
description: 19 pages including 6 figures. Submitted to ApJ. Typos corrected, several parts reworded for clarification