cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Charged hairy black holes in the gauged Einstein-Friedberg-Lee-Sirlin model
Creators: name: Kunz, Jutta
name: Shnir, Yakov
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We obtain charged spherically symmetric black holes in the two-component scalar Einstein-Maxwell-Friedberg-Lee-Sirlin model with a symmetry breaking potential. These asymptotically flat black holes carry resonant scalar Q-hair. As expected, these hairy black holes give rise to non-uniqueness. When comparing these solutions with the corresponding charged boson stars and Reissner-Nordström black holes, we find a different pattern in the case of a massive real scalar component and a massless one. We demonstrate that, as the real component becomes massless, the resonant hairy black holes bifurcate from Reissner-Nordström black holes for sufficiently small gravitational coupling.
description: 21 pages, 9 figures
Sonnenfleckenzeichnung Nr. 28204.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.08.1990, erstellt von Hans Ulrich Keller.
Zusätzlich ist vermerkt: Sonnenturm
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Coelostat/Teleskop: Das Sonnenlicht wurde über einen Coelostat in eine Vertikalachse, anschliessend von einem Umlenkungsspiegel durch ein Horizontalteleskop gelenkt, und von dessen Okular auf das vertikal fixierte "Sonnenblatt" projiziert.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Symmetry Energy II: Isobaric Analog States
Creators: name: Danielewicz, Pawel
name: Lee, Jenny
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using excitation energies to isobaric analog states (IAS) and charge invariance, we extract nuclear symmetry coefficients, from a mass formula, on a nucleus-by-nucleus basis. Consistently with charge invariance, the coefficients vary weakly across an isobaric chain. However, they change strongly with nuclear mass and range from a_a~10 MeV at mass A~10 to a_a~22 MeV at A~240. Following the considerations of a Hohenberg-Kohn functional for nuclear systems, we determine how to find in practice the symmetry coefficient using neutron and proton densities, even when those densities are simultaneously affected by significant symmetry-energy and Coulomb effects. These results facilitate extracting the symmetry coefficients from Skyrme-Hartree-Fock (SHF) calculations, that we carry out using a variety of Skyrme parametrizations in the literature. For the parametrizations, we catalog novel short-wavelength instabilities. In comparing the SHF and IAS results for the symmetry coefficients, we arrive at narrow (+-2.4 MeV) constraints on the symmetry energy values S(rho) at 0.04
description: 101 pages, 27 figures, 2 tables; submitted to Nuclear Physics A
title: Der "Ueberfall von Nidwalden"
title: (9. September 1798)
titleType: Subtitle
Creators: name: Escher, Conrad
Publisher: name: Art. Institut Orell Füssli
Year: 1899
Subjects: subject: 940 Geschichte Europas
subject: Neujahrsblatt
subject: Nidwalden

description: Weiterer Verlag: Kommissionsverlag Fäsi & Beer in Zürich
The whole is greater than the sum of the parts: Recognising missed opportunities for an optimal response to the rapidly maturing TB-HIV co-epidemic in South Africa
Creators: name: Perumal, Rubeshan
name: Padayatchi, Nesri
name: Stiefvater, Ellen
Publisher: name: Columbia University
Year: 2009
Subjects: Public health

description: Despite widely acknowledged WHO guidelines for the integration of TB and HIV services, heavily burdened countries have been slow to implement these and thus significant missed opportunities have arisen. The individual-centred, rights-based paradigm of the SA National AIDS Policy, remains dissonant with the compelling public-health approach of TB control. The existence of independent and disconnected TB and HIV services results in a wastage of scarce health resources, an increased burden on patients' time and finances, and ignores evidence of patients' preference for an integrated service. The current situation translates into a web of unacceptable, ongoing missed opportunities such as failure to maximize collaborative disease surveillance, VCT, adherence support, infection control, and positive prevention. TB services present a readily identifiable cohort for HIV provider-initiated testing. Integrating HAART and DOTS will promote efficient usage of health workers' time and a more navigable experience for patients, ultimately ensuring increased TB treatment completion rates and MDR-TB prevention. As direct observation evolves into a more supportive, empowering experience for patients, adherence to both TB drugs and HAART will be bolstered. Little attention has been paid to the transmission of TB within HIV services. Low cost infection control interventions include: triaging patients, scheduling new and follow-up patients separately; well-ventilated, sheltered waiting rooms; and the use of personal respirators by patients and staff. A more patient-centred approach to TB care may be able to recruit the active participation of TB patients in positive prevention efforts, including maximizing personal infection control, limiting exposure of social contacts to TB during the intensive phase of treatment, advocating isoniazid prophylaxis within the home and patient-centred education efforts to reduce overall transmission. Several model programmes demonstrated synergy, in which the impact of the "whole" or integrated response was greater than the sum of the non-integrated parts. The full potential of an integrated TB-HIV service has not been fully harvested. Missed opportunities discount existing efforts in both programmes, will perpetuate the burden of disease, and prevent major gains in future interventions. This paper outlines simple, readily-implementable strategies to narrow the gap and reclaim existing missed opportunities.
Sonnenfleckenzeichnung Nr. 28132.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 13.03.1990, erstellt von Hans Ulrich Keller.
Zusätzlich ist vermerkt: Sonnenturm
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Coelostat/Teleskop: Das Sonnenlicht wurde über einen Coelostat in eine Vertikalachse, anschliessend von einem Umlenkungsspiegel durch ein Horizontalteleskop gelenkt, und von dessen Okular auf das vertikal fixierte "Sonnenblatt" projiziert.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Mergers in Galaxy Groups - I. Structure and Properties of Elliptical Remnants
Creators: name: Taranu, Dan S.
name: Dubinski, John
name: Yee, H. K. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present collisionless simulations of dry mergers in groups of three to twenty-five galaxies to test the hypothesis that elliptical galaxies form at the centers of such groups. Mock observations of the central remnants confirm their similarity to ellipticals, despite having no dissipational component. We vary the profile of the original spiral's bulge and find that ellipticals formed from spirals with exponential bulges have too low Sersic indices. Mergers of spirals with de Vaucouleurs (classical) bulges produce remnants with larger Sersic indices correlated with luminosity, as with SDSS ellipticals. Exponential bulge mergers are better fits to faint ellipticals, whereas classical bulge mergers better match luminous ellipticals. Similarly, luminous ellipticals are better reproduced by remnants undergoing many (>5) mergers, and fainter ellipticals by those with fewer mergers. The remnants follow tight size-luminosity and velocity dispersion-luminosity (Faber-Jackson) relations (<0.12 dex scatter), demonstrating that stochastic merging can produce tight scaling relations if the merging galaxies also follow tight scaling relations. The slopes of the size-luminosity and Faber-Jackson relations are close to observations but slightly shallower in the former case. Both relations' intercepts are offset - remnants are too large but have too low dispersions at fixed luminosity. Some remnants show substantial (v/σ> 0.1) rotational support, although most are slow rotators and few are very fast rotators (v/σ> 0.5). These findings contrast with previous studies concluding that dissipation necessary to produce ellipticals from binary mergers of spirals. Multiple, mostly minor and dry mergers can produce bright ellipticals, whereas significant dissipation could be required to produce faint, rapidly-rotating ellipticals.
description: ApJ accepted
Zero-bias photodetection in 2d materials via geometric design of contacts
Creators: name: Semkin, Valentin A.
name: Shabanov, Aleksandr V.
name: Mylnikov, Dmitry A.
name: Kashchenko, Mikhail A.
name: Domaratskiy, Ivan K.
name: Zhukov, Sergey S.
name: Svintsov, Dmitry A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Structural or crystal asymmetry are necessary conditions for emergence of zero-bias photocurrent in light detectors. Structural asymmetry has been typically achieved via $p-n$ doping being a technologically complex process. Here, we propose an alternative approach to achieve zero-bias photocurrent in 2d material flakes exploiting the geometrical non-equivalence of source and drain contacts. As a prototypical example, we equip a square-shaped flake of PdSe$_2$ with mutually orthogonal metal leads. Upon uniform illumination with linearly-polarized light, the device demonstrates non-zero photocurrent which flips its sign upon 90$^\circ$ polarization rotation. The origin of zero-bias photocurrent lies in polarization-dependent lightning-rod effect. It enhances the electromagnetic field at one contact from the orthogonal pair, and selectively activates the internal photoeffect at the respective metal-PdSe$_2$ Schottky junction. The proposed technology of contact engineering can be extended to arbitrary 2d materials and detection of both polarized and natural light.
Sonnenfleckenzeichnung Nr. 28232.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 18.10.1990, erstellt von Hans Ulrich Keller.
Zusätzlich ist vermerkt: Sonnenturm
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Coelostat/Teleskop: Das Sonnenlicht wurde über einen Coelostat in eine Vertikalachse, anschliessend von einem Umlenkungsspiegel durch ein Horizontalteleskop gelenkt, und von dessen Okular auf das vertikal fixierte "Sonnenblatt" projiziert.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Superconducting properties of BiS2 based superconductor NdO1-xFxBiS2 (x=0 to 0.9)
Creators: name: Jha, Rajveer
name: Awana, V. P. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report the phase diagram of NdO1-xFxBiS2 (x=0.1, 0.3, 0.5, 0.7, 0.9) compound. The samples synthesized by the vacuum encapsulation technique are crystallized in a tetragonal P4/nmm space group. The superconductivity of all samples is confirmed by DC magnetic susceptibility and electrical transport measurements. The maximum Tc of 5.25K is seen for x = 0.7 sample. The upper critical field is calculated from magneto transport measurements. The Thermal activated flux flow - TAFF studies are also carried out. Hall measurements show that electrons are the dominating charge carriers in these systems.
description: 17 pages text + Figs
Die Beschlüsse der deutschen Reichsversammlung über die Grundrechte des deutschen Volkes, insbesondere den Schutz und die Entlastung des Eigenthums; [1848]
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Beilage zur Darmstädter Zeitung Nr. 304 vom 1. November 1848
НАВОИЙНИНГ "ТАРИХИ АНБИЁ ВА ҲУКАМО" ҚАНДАЙ АСАР
Creators: name: Шарипов, Назаржон
Publisher: name: Zenodo
Year: 2023

description: Навоий 1485 йилда "Хамса"ни ёзиб тугатгач, "Тарихи анбиё ва ҳукамо" асарини ёзишга киришади. Асар уч қисмдан иборат бўлиб, биринчи қисмда пайғамбарлар ҳаёти ва насаблари ҳақида маълумотлар берилади. Иккинчи қисмда Аллоҳга яқин бўлган обид инсонлар ҳақидаги хабарлар келтирилади.
Sonnenfleckenzeichnung Nr. 28176.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 28.06.1990, erstellt von Hans Ulrich Keller.
Zusätzlich ist vermerkt: Sonnenturm
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Coelostat/Teleskop: Das Sonnenlicht wurde über einen Coelostat in eine Vertikalachse, anschliessend von einem Umlenkungsspiegel durch ein Horizontalteleskop gelenkt, und von dessen Okular auf das vertikal fixierte "Sonnenblatt" projiziert.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Earl Hines and "Rosetta"
Creators: name: Taylor, Jeffrey
Publisher: name: Columbia University
Year: 2002
Subjects: Music

description: One of the proudest moments of Earl "Fatha" Hines's career took place in 1976, when he was invited to perform at a White House dinner in honor of the President of France. "Rosetta" had been composed by Hines and his arranger Henri Woode over forty years earlier. That the pianist chose this tune for such an occasion, and at this late stage of his career, says much about its prominence in his life. Hines recorded four solo versions of "Rosetta." The two available performances, placed side by side, capture Hines's relentless virtuosity and innovative musical mind, and provide a fascinating example of how a jazz musician can revisit the same melody and chord structure from two perspectives. But the recordings also raise larger issues of context, for they are closely linked both to the tune's creation and subsequent performance history and to Hines's working life as one of the most gifted band pianists of his generation.
Sonnenfleckenzeichnung Nr. 28125.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 24.02.1990, erstellt von Hans Ulrich Keller
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Heavy quarkonium with finite three momentum near $T_c$
Creators: name: Kim, HyungJoo
name: Yeo, Seokwoo
name: Cho, Sungtae
name: Lee, Su Houng
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the non-trivial 3-momentum effects on the masses of heavy quarkonium states that are moving in a hot medium using QCD sum rules. For all charmonium states, we observe a negative mass shift near $T_c$ that is less than 3$\%$ at a momentum of 1$\rm{GeV}$. Specifically, we first investigate the difference between the longitudinal and transverse modes of both $J/ψ$ and $χ_{c1}$. We find that the transverse mode of the $J/ψ$ experiences larger modification than the longitudinal mode, while the $χ_{c1}$ has the opposite behavior. By comparing the $η_c$ and $χ_{c0}$, and also the unpolarized $J/ψ$ and $χ_{c1}$, we recognize that the P-wave particles have stronger momentum dependencies on their masses than the S-wave ones. We also find $Υ$(1S) has negligible 3-momentum dependence compared to the charmonium states, e.g. less than 0.01$\%$ even at 1.4$T_c$ and at a momentum of 4$\rm{GeV}$.
description: 6 pages, 7 figures
Scat Singing: A Timbral and Phonemic Analysis
Creators: name: Bauer, William R.
Publisher: name: Columbia University
Year: 2002
Subjects: Music

description: In this article William Bauer analyzes scat and timbre within the context of Jazz and their effects on music over time. He concludes that for many vocalists timbre is much more than a vehicle for adding coloristic touches to a melodic line. But while singers' distinctive use of timbre sets their work apart from that of instrumentalists, the crossover of ideas between instrumentalists and vocalists indicates that the timbral analysis of scat vocals may offer insights that are applicable to instrumental music. Regardless of this potential application, however, it is evident that by closely examining how singers exercise mastery over timbre as well as other musical raw materials we can increase our understanding of singers' accomplishments and deepen our appreciation of their contribution to jazz.
Sonnenfleckenzeichnung Nr. 28177.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 29.06.1990, erstellt von Hans Ulrich Keller.
Zusätzlich ist vermerkt: Sonnenturm
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Coelostat/Teleskop: Das Sonnenlicht wurde über einen Coelostat in eine Vertikalachse, anschliessend von einem Umlenkungsspiegel durch ein Horizontalteleskop gelenkt, und von dessen Okular auf das vertikal fixierte "Sonnenblatt" projiziert.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Seeing Hofstadter's Butterfly in Atomic Fermi Gases
Creators: name: Wang, Lei
name: Troyer, Matthias
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a novel way to detect the fractal energy spectrum of the Hofstadter model from the density distributions of ultracold fermions in an external trap. At low temperature, the local compressibility is proportional to the density of states of the system which reveals the fractal energy spectrum. However, thermal broadening and noises in the real experimental situation inevitably smear out fine features in the density distribution. To overcome this difficulty, we use the maximum entropy method to extract the density of states directly from the noisy thermal density distributions. Simulations show that one is able to restore the core feature of the Hofstadter's butterfly spectrum with current experimental techniques. By further reducing the noise or the temperature, one can refine the resolution and observe fine structures of the butterfly spectrum.
description: 5+epsilon pages, 5 figures
Small vs large dust grains in transitional disks: do different cavity sizes indicate a planet?
Creators: name: Garufi, Antonio
name: Quanz, Sascha P
name: Avenhaus, Henning
name: Buenzli, Esther
name: Dominik, Carsten
name: Meru, Farzana
name: Meyer, Michael R
name: Pinilla, Paola
name: Schmid, Hans Martin
name: Wolf, Sebastian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Transitional disks represent a short stage of the evolution of circumstellar material. Studies of dust grains in these objects can provide pivotal information on the mechanisms of planet formation. Dissimilarities in the spatial distribution of small (micron-size) and large (millimeter-size) dust grains have recently been pointed out. Constraints on the small dust grains can be obtained by imaging the distribution of scattered light at near-infrared wavelengths. We aim at resolving structures in the surface layer of transitional disks (with particular emphasis on the inner 10 - 50 AU), thus increasing the scarce sample of high resolution images of these objects. We obtained VLT/NACO near-IR high-resolution polarimetric differential imaging observations of SAO 206462 (HD135344B). This technique allows one to image the polarized scattered light from the disk without any occulting mask and to reach an inner working angle of 0.1''. A face-on disk is detected in H and Ks bands between 0.1'' and 0.9''. No significant differences are seen between the H and Ks images. In addition to the spiral arms, these new data allow us to resolve for the first time an inner cavity for small dust grains. The cavity size (about 28 AU) is much smaller than what is inferred for large dust grains from (sub)mm observations (39 to 50 AU). The interaction between the disk and potential orbiting companion(s) can explain both the spiral arm structure and the discrepant cavity sizes for small and large dust grains. One planet may be carving out the gas (and, thus, the small grains) at 28 AU, and generating a pressure bump at larger radii (39 AU), which holds back the large grains. We analytically estimate that, in this scenario, a single giant planet (with a mass between 5 and 15 Jupiter masses) at 17 to 20 AU from the star is consistent with the observed cavity sizes.
description: 11 pages, 6 figures; accepted for publication in A&A
Omega Transmission Lines with Applications to Effective Medium Models of Metamaterials
Creators: name: Vehmas, Joni
name: Hrabar, Silvio
name: Tretyakov, Sergei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper we introduce the concept of transmission lines with inherent bi-anisotropy and establish an analogy between these lines and volumetric bi-anisotropic materials. In particular, we find under what conditions a periodically loaded transmission line can be treated as an effective omega medium. Two example circuits are introduced and analyzed. The results have two-fold implications: opening a route to emulate electromagnetic properties of bi-anisotropic omega media using transmission-line meshes and understanding and improving effective medium models of composite materials with the use of effective circuit models of unit cells.
description: Accepted to be published in Journal of Applied Physics
Pairing and rotational properties of actinides and superheavy nuclei in covariant density functional theory
Creators: name: Afanasjev, A. V.
name: Abdurazakov, O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The cranked relativistic Hartree-Bogoliubov (CRHB) theory has been applied for a systematic study of pairing and rotational properties of actinides and light superheavy nuclei. Pairing correlations are taken into account by the Brink-Booker part of finite range Gogny D1S force. For the first time in the covariant density functional theory (CDFT) framework the pairing properties are studied via the quantities (such as three-point $Δ^{(3)}$ indicators) related to odd-even mass staggerings. The investigation of the moments of inertia at low spin and the $Δ^{(3)}$ indicators shows the need for an attenuation of the strength of the Brink-Booker part of the Gogny D1S force in pairing channel. The investigation of rotational properties of even-even and odd-mass nuclei at normal deformation, performed in the density functional theory framework in such a systematic way for the first time, reveals that in the majority of the cases the experimental data are well described. These include the evolution of the moments of inertia with spin, band crossings in the $A\geq 242$ nuclei, the impact of the particle in specific orbital on the moments of inertia in odd-mass nuclei. The analysis of the discrepancies between theory and experiment in the band crossing region of $A\leq 240$ nuclei suggests the stabilization of octupole deformation at high spin, not included in the present calculations. The evolution of pairing with deformation, which is important for the fission barriers, has been investigated via the analysis of the moments of inertia in the superdeformed minimum. The dependence of the results on the CDFT parametrization has been studied by comparing the results of the calculations obtained with the NL1 and NL3* parametrizations.
description: 32 pages, 31 figures, Physical Review C, in press
Prospects for localising Planet 9 with a future Uranus mission
Creators: name: Bucko, Jozef
name: Soyuer, Deniz
name: Zwick, Lorenz
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Past years have seen various publications attempting to explain the apparent clustering features of trans-Neptunian objects, the most popular explanation being an unconfirmed "Planet 9". The recently proposed Uranus Orbiter and Probe mission by NASA's Planetary Science and Astrobiology Decadal Survey could offer the opportunity to precisely determine Planet 9's sky location and mass by carefully monitoring ranging data during the interplanetary cruise. We use Monte Carlo-Markov Chain methods to reconstruct simulated spacecraft trajectories in a simplified solar system model containing Planet 9, providing an estimate of the mission's localisation capacity depending on sky location, Earth-spacecraft Doppler link noise level and data collection rate. We characterise the noise via the Allan deviation $σ_{\rm A}$, scaled to the Cassini-era value $σ_{\rm A}^{\rm \scriptscriptstyle Cass} = 3 \times 10^{-15}$, finding that daily measurements of the spacecraft position can lead to $\sim$0.2 deg$^2$ localisation of Planet 9 (assuming $M_9 = 6.3 M_{\oplus}$, $d_9 = 460$AU). As little as a 3-fold improvement in $σ_{\rm A}$ drastically decreases the sky localisation area size to $\sim$0.01 deg$^2$. Thus, we showcase that a future Uranus mission carries a significant potential also for non-Uranian science.
description: Accepted for publication in MNRAS: Letters, 5 pages, 4 figures
Sonnenfleckenzeichnung Nr. 28144.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 19.04.1990, erstellt von Hans Ulrich Keller.
Zusätzlich ist vermerkt: Sonnenturm
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Coelostat/Teleskop: Das Sonnenlicht wurde über einen Coelostat in eine Vertikalachse, anschliessend von einem Umlenkungsspiegel durch ein Horizontalteleskop gelenkt, und von dessen Okular auf das vertikal fixierte "Sonnenblatt" projiziert.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Determining Inclinations of Active Galactic Nuclei Via Their Narrow-Line Region Kinematics - I. Observational Results
Creators: name: Fischer, T. C.
name: Crenshaw, D. M.
name: Kraemer, S. B.
name: Schmitt, H. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Active Galactic Nuclei (AGN) are axisymmetric systems to first order; their observed properties are likely strong functions of inclination with respect to our line of sight. However, except for a few special cases, the specific inclinations of individual AGN are unknown. We have developed a promising technique for determining the inclinations of nearby AGN by mapping the kinematics of their narrow-line regions (NLRs), which are often easily resolved with Hubble Space Telescope (HST) [O III] imaging and long-slit spectra from the Space Telescope Imaging Spectrograph (STIS). Our studies indicate that NLR kinematics dominated by radial outflow can be fit with simple biconical outflow models that can be used to determine the inclination of the bicone axis, and hence the obscuring torus, with respect to our line of sight. We present NLR analysis of 53 Seyfert galaxies and resultant inclinations from models of 17 individual AGN with clear signatures of biconical outflow. Our model results agree with the unified model in that Seyfert 1 AGN have NLRs inclined further toward our line of sight (LOS) than Seyfert 2 AGN. Knowing the inclinations of these AGN NLRs, and thus their accretion disk and/or torus axes, will allow us to determine how their observed properties vary as a function of polar angle. We find no correlation between the inclinations of the AGN NLRs and the disks of their host galaxies, indicating that the orientation of the gas in the torus is independent from that of the host disk.
description: Accepted for publication in The Astrophysical Journal Supplement Series - 116 pages, 69 figures
PhenoGO: an integrated resource for the multiscale mining of clinical and biological data
Creators: name: Sam, Lee
name: Mendonça, Eneida
name: Li, Jianrong
name: Blake, Judith
name: Friedman, Carol
name: Lussier, Yves
Publisher: name: Columbia University
Year: 2009
Subjects: subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Genetics--Data processing
subject: Genetics—Research

description: The evolving complexity of genome-scale experiments has increasingly centralized the role of a highly computable, accurate, and comprehensive resource spanning multiple biological scales and viewpoints. To provide a resource to meet this need, we have significantly extended the PhenoGO database with gene-disease specific annotations and included an additional ten species. This a computationally-derived resource is primarily intended to provide phenotypic context (cell type, tissue, organ, and disease) for mining existing associations between gene products and GO terms specified in the Gene Ontology Databases Automated natural language processing (BioMedLEE) and computational ontology (PhenOS) methods were used to derive these relationships from the literature, expanding the database with information from ten additional species to include over 600,000 phenotypic contexts spanning eleven species from five GO annotation databases. A comprehensive evaluation evaluating the mappings (n = 300) found precision (positive predictive value) at 85%, and recall (sensitivity) at 76%. Phenotypes are encoded in general purpose ontologies such as Cell Ontology, the Unified Medical Language System, and in specialized ontologies such as the Mouse Anatomy and the Mammalian Phenotype Ontology. A web portal has also been developed, allowing for advanced filtering and querying of the database as well as download of the entire dataset http://www.phenogo.org.
TRAIT-FACTOR EFFECTING GUIDANCE AND COUNSELLING APPROACH ON SENIOR SECONDARY STUDENT CAREER CHOICE
Creators: name: Utang Ibok Effanga
Publisher: name: Zenodo
Year: 2008
Subjects: Trait-Factor Effecting Guidance and Counselling Approach, Career Choice, Career Counselling, Career Guidance and Counselling, Career Decision Making

description: This research project examines Trait-Factor effecting Guidance and Counselling Approach on Senior Secondary Student"s Career Choice in Nigeria. Students are faced with the dilemma of choosing a lucrative and befitting career that they would pursue in time. This makes students prone to different opinion from parents, teachers and peer. Hence, the need for proper career counselling using the trait- factor counselling approach. The trait and factor theory operates under the premise that it is possible to measure both individual talents and the attributes required in particular jobs. Trait-factor counselling approaches assume that career choice may be facilitated and career outcomes optimized through a fairly straight forward process of matching an individual"s most relevant work-relevant characteristics (abilities, interests, values, etc) with information regarding job activities, demands, rewards, and availability. The counselling process for this approach typically starts with a client interview, then proceeds to extensive psychometric assessment of the client"s work-relevant characteristics, and is finalized with an interpretation of assessment results with connections being drawn between these results and one or more occupational classification systems. Many factors can influence or come into play in students" career choice such as interest in field, academic ability, familiarity, economic stability, and influential people can all play a role in their career choice. Conclusions and recommendations were made.
Sonnenfleckenzeichnung Nr. 28186.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 13.07.1990, erstellt von Hans Ulrich Keller.
Zusätzlich ist vermerkt: Sonnenturm
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Coelostat/Teleskop: Das Sonnenlicht wurde über einen Coelostat in eine Vertikalachse, anschliessend von einem Umlenkungsspiegel durch ein Horizontalteleskop gelenkt, und von dessen Okular auf das vertikal fixierte "Sonnenblatt" projiziert.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
Robotic neurorehabilitation: a computational motor learning perspective
Creators: name: Huang, Vincent
name: Krakauer, John
Publisher: name: Columbia University
Year: 2009
Subjects: subject: Neurosciences
subject: FOS: Clinical medicine
subject: Physical therapy

description: Conventional neurorehabilitation appears to have little impact on impairment over and above that of spontaneous biological recovery. Robotic neurorehabilitation has the potential for a greater impact on impairment due to easy deployment, its applicability across of a wide range of motor impairment, its high measurement reliability, and the capacity to deliver high dosage and high intensity training protocols.
We first describe current knowledge of the natural history of arm recovery after stroke and of outcome prediction in individual patients. Rehabilitation strategies and outcome measures for impairment versus function are compared. The topics of dosage, intensity, and time of rehabilitation are then discussed.
Robots are particularly suitable for both rigorous testing and application of motor learning principles to neurorehabilitation. Computational motor control and learning principles derived from studies in healthy subjects are introduced in the context of robotic neurorehabilitation. Particular attention is paid to the idea of context, task generalization and training schedule. The assumptions that underlie the choice of both movement trajectory programmed into the robot and the degree of active participation required by subjects are examined. We consider rehabilitation as a general learning problem, and examine it from the perspective of theoretical learning frameworks such as supervised and unsupervised learning. We discuss the limitations of current robotic neurorehabilitation paradigms and suggest new research directions from the perspective of computational motor learning.
The temperature of the diffuse HI in the Milky Way I: High resolution HI 21 cm absorption studies
Creators: name: Roy, Nirupam
name: Kanekar, Nissim
name: Braun, Robert
name: Chengalur, Jayaram N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have carried out deep, high velocity resolution, interferometric Galactic HI 21 cm absorption spectroscopy towards 32 compact extra-galactic radio sources with the Giant Metrewave Radio Telescope (GMRT) and the Westerbork Synthesis Radio Telescope (WSRT). The optical depth spectra for most sources have root mean square noise values \lesssim 10^{-3} per 1 km/s velocity channel and are thus sufficiently sensitive to detect absorption by warm neutral hydrogen with HI column densities N_HI \gtrsim 10^{20} cm^{-2}, spin temperatures T_s \leq 5000 K, and line widths equal to the thermal width (20 km/s). HI 21 cm absorption was detected against all background sources but one, B0438-436. The spectra of sources observed separately with GMRT and WSRT show excellent agreement, indicating that spectral baseline problems and contamination from HI 21 cm emission are negligible. This paper presents the absorption spectra, the emission spectra along neighbouring sightlines from the Leiden-Argentine-Bonn survey, and the derived spin temperature spectra. On every sightline, the maximum spin temperature detected (at \ge 3 sigma significance) even at a velocity resolution of 1 km/s is \gtrsim 1000 K, indicating that we are detecting the warm neutral medium along most sightlines. This is by far the largest sample of Galactic HI 21 cm absorption spectra of this quality, providing a sensitive probe of physical conditions in the neutral atomic ISM.
description: 14 pages, 5 figures. Accepted for publication in MNRAS. The definitive version will be available at http://mnras.oxfordjournals.org/
On the computation of interstellar extinction in photoionized nebulae
Creators: name: Morisset, Christophe
name: Corradi, Romano L. M.
name: García-Rojas, Jorge
name: Mampaso, Antonio
name: Jones, David
name: Kwitter, Karen B.
name: Magrini, Laura
name: Villaver, Eva
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Ueta & Otsuka (2021) proposed a method, named as the "Proper Plasma Analysis Practice", to analyze spectroscopic data of ionized nebulae. The method is based on a coherent and simultaneous determination of the reddening correction and physical conditions in the nebulae. The same authors (Ueta & Otsuka 2022, UO22) reanalyzed the results of Galera-Rosillo et al. (2022, GR22) on nine of the brightest planetary nebulae in M31. They claim that, if standard values of the physical conditions are used to compute the extinction instead of their proposed method, extinction correction is underestimated by more than 50% and hence, ionic and elemental abundance determinations, especially the N/O ratio, are incorrect. Several tests were performed to assess the accuracy of the results of GR22, when determining: i) the extinction coefficient, ii) the electron temperature and density, and iii) the ionic abundances. In the latter case, N+ /H+ ionic abundance was recalculated using both H_alpha and H_beta as the reference H I emissivity. The analysis shows that the errors introduced by adopting standard values of the plasma conditions by GR22 are small, within their quoted uncertainties. On the other hand, the interstellar extinction in UO22 is found to be overestimated for five of the nine nebulae considered. This propagates into their analysis of the properties of the nebulae and their progenitors. The python notebook used to generate all the results presented in this paper are of public access on a Github repository. The results from GR22 are proven valid and the conclusions of the paper hold firmly. Although the PPAP is, in principle, a recommended practice, we insist that it is equally important to critically assess which H I lines are to be included in the determination of the interstellar extinction coefficient, and to assert that physical results are obtained for the undereddened line ratios.
description: Accepted for publication in A&A Letter
Sonnenfleckenzeichnung Nr. 28219.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 14.09.1990, erstellt von Hans Ulrich Keller.
Zusätzlich ist vermerkt: Sonnenturm
Creators: name: Eidgenössische Sternwarte in Zürich (ETH Zürich bzw. vor 1911 Polytechnikum)
Publisher: name: [s.n.]
Year: 1990

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der ehem. Eidgenössischen Sternwarte Zürich. Instrument: Coelostat/Teleskop: Das Sonnenlicht wurde über einen Coelostat in eine Vertikalachse, anschliessend von einem Umlenkungsspiegel durch ein Horizontalteleskop gelenkt, und von dessen Okular auf das vertikal fixierte "Sonnenblatt" projiziert.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit den statistischen Angaben, für die Werte g, f und mit einer Spalte für A: von blossem Auge sichtbare Flecken, beobachtet mit Hilfe eines korrekt-reduzierenden optischen Filters (naked eye sunspots).
Beobachtungstätigkeit am erwähnten Ort im Auftrag des Schweizerischen Militärdepartements, Bundesamt für Übermittlungstruppen (BAUEM): Zählungen am Fraunhoferschen Normalrefraktor und Zeichnungen am Zeiss-Coudé-Refraktor
From 2N to infinitely many escape orbits
Creators: name: Fontana-McNally, Josep
name: Miranda, Eva
name: Oms, Cédric
name: Peralta-Salas, Daniel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Dynamical Systems (math.DS)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: In this short note, we prove that singular Reeb vector fields associated with generic $b$-contact forms have either (at least) $2N$ or an infinite number of escape orbits, where $N$ denotes the number of connected components of the critical set.
description: 16 pages, for Alain Chenciner on his 2N-birthday. The article has undergone substantial improvement incorporating stronger results and introducing a novel count of escape orbits with multiplicity