cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Neutrino Self-Interactions
Creators: name: Hasenkamp, Jasper
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a theory that equips the active neutrinos with interactions among themselves that are at least three orders of magnitude stronger than the weak interaction. We introduce an Abelian gauge group $U(1)_x$ with vacuum expectation value $v_x \lesssim \mathcal{O}(100 \textrm{ MeV})$. An asymmetric mass matrix implements the active neutrinos as massless mass eigenstates carrying "effective" charges. To stabilize $v_x$, supersymmetry breaking is mediated via loops to the additional sector with the only exception of xHiggs terms. No Standard Model interaction eigenstate carries $U(1)_x$ charge. Thus the dark photon's kinetic mixing is two-loop suppressed.With only simple and generic values of dimensionless parameters, our theory might explain the high-energy neutrino spectrum observed by IceCube including the PeV neutrinos. We comment on the imposing opportunity to incorporate a self-interacting dark matter candidate.
description: 6 pages, 1 figure
Pharotis Thomas 1914
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Pharotis

description: Pharotis Thomas, 1914. Ann. Mag. Nat. Hist., ser. 8, 14:381. TYPE SPECIES: Pharotis imogene Thomas, 1914.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 219, DOI: 10.5281/zenodo.7353060
Geometrical splitting and reduction of Feynman diagrams
Creators: name: Davydychev, Andrei I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A geometrical approach to the calculation of N-point Feynman diagrams is reviewed. It is shown that the geometrical splitting yields useful connections between Feynman integrals with different momenta and masses. It is demonstrated how these results can be used to reduce the number of variables in the occurring functions.
description: 6 pages, 8 figures, contribution for proceedings of ACAT 2016 (Valparaiso, Chile, January 18-22, 2016)
Numerical Investigation of Evaporation Induced Self-Assembly of Sub-Micron Particles Suspended in Water
Creators: name: Tayeb, Raihan
name: Mao, Yijin
name: Zhang, Yuwen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Self-assembly of sub-micron particles suspended in a water film is investigated numerically. The liquid medium is allowed to evaporate leaving only the sub-micron particles. A coupled CFD-DEM approach is used for the simulation of fluid-particle interaction. Momentum exchange and heat transfer between particles and fluid and among particles are considered. A history dependent contact model is used to compute the contact force among sub-micron particles. Simulation is done using the open source software package CFDEM which basically comprises of two other open source packages OpenFOAM and LIGGGHTS. OpenFOAM is a widely used solver for CFD related problems. LIGGGHTS, a modification of LAMMPS, is used for DEM simulation of granular materials. The final packing structure of the sub-micron particles is discussed in terms of distribution of coordination number and radial distribution function (RDF). The final packing structure shows that particles form clusters and exhibit a definite pattern as water evaporates away.
A Numerical Study of Long-Range Magnetic Impacts during Coronal Mass Ejections
Creators: name: Jin, M.
name: Schrijver, C. J.
name: Cheung, M. C. M.
name: DeRosa, M. L.
name: Nitta, N. V.
name: Title, A. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: With the global view and high-cadence observations from SDO/AIA and STEREO, many spatially separated solar eruptive events appear to be coupled. However, the mechanisms for "sympathetic" events are still largely unknown. In this study, we investigate the impact of an erupting flux rope on surrounding solar structures through large-scale magnetic coupling. We build a realistic environment of the solar corona on 2011 February 15 using a global magnetohydrodynamics (MHD) model and initiate coronal mass ejections (CMEs) in active region (AR) 11158 by inserting Gibson-Low analytical flux ropes. We show that a CME's impact on the surrounding structures depends not only on the magnetic strength of these structures and their distance to the source region, but also on the interaction between the CME with the large-scale magnetic field. Within the CME expansion domain where the flux rope field directly interacts with the solar structures, expansion-induced reconnection often modifies the overlying field, thereby increasing the decay index. This effect may provide a primary coupling mechanism underlying the sympathetic eruptions. The magnitude of the impact is found to depend on the orientation of the erupting flux rope, with the largest impacts occurring when the flux rope is favorably oriented for reconnecting with the surrounding regions. Outside the CME expansion domain, the influence of the CME is mainly through field line compression or post-eruption relaxation. Based on our numerical experiments, we discuss a way to quantify the eruption impact, which could be useful for forecasting purposes.
description: 38 pages, 13 figures
Brief an Samuel Reyher
Creators: name: Kirch, Gottfried
Publisher: name: [s.n.]
Year: 1701

description: Neueinrichtung der Kalender von 1700 infolge der Kal.-Verbesserung; K.s Kritik an der Reform u. ihre Folgen; Berufung nach Berlin; Tiedius ewig währender Kalender [möglicherweise Tiedius, Joachim: Calendarium novum. - 1699]
description: von [Gottfried Kirch]
description: Bl.135 ist leer
description: Am Briefende: "Herrn Samuel Rheyern, J.U. Doctori, auch ...[?] et Mathem. Professori bey der Hochfürstl. ...[?] Universität in Kiel"
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Digitalisierung=Digitization=Numérisation April 2022 TIFF
description: Verzeichnung=Description=Inventaire Sept. 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis, Briefkatalog und Originalbrief
Die Nationalratswahlen 1943 im Kanton Zürich
Creators: name: (:Unkn) Unknown
Publisher: name: Zentralbibliothek Zürich
Year: 1944
Subjects: subject: 314 Allgemeine Statistiken zu Europa
subject: 320 Politikwissenschaft
subject: Kanton Zürich
subject: Amtliche Statistik
subject: Wahl
subject: Schweiz. Bundesversammlung. Nationalrat

description: Mit neun Karten: 1 Übersichtskarte der politischen Gemeinden bei den Nationalratswahlen 1943 im Kanton Zürich ; 8 Karten zur Parteistärke in den Gemeinden pro Partei (Bauernpartei, Sozialdemokratische Partei, Evangelische Volkspartei, Demokratische Partei, Freisinnige Partei, Christlichsoziale Partei, Unabhängig-Freie, Landesring der Unabhängigen).
description: Inhalt: Einleitung ; Die Wahlvorschläge ; Die Stimmberechtigten ; Die Wahlbeteiligung ; Die Wahlzettel ; Die Stimmen ; Die Mandate (Darstellung der Sitzverteilung) ; Die Gewählten und die Ersatzkandidaten ; Zusammenfassung und Schluss.
Brief an Sebastian Schobinger
Creators: name: Egs, Johann Friedrich
Publisher: name: [s.n.]
Year: 1607

description: von Johann Friedrich Eggs
description: Datierung gemäss Briefkatalog (wohl 1607)
description: Entspricht Briefnummer XIV
description: Weitere Abschrift: G2 II 7:Bl.7-9
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Verzeichnung=Description=Inventaire April 2022 HAN-Katalogisierungsregeln Katalogisierung nach Briefkatalog und Original ben
Pharotis imogene Thomas 1914
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Pharotis
Pharotis imogene

description: Pharotis imogene Thomas, 1914. Ann. Mag. Nat. Hist., ser. 8, 14:382. TYPE LOCALITY: Papua New Guinea, Central Prov., Lower Kemp Welch River, Kamali. DISTRIBUTION: SE New Guinea.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 219, DOI: 10.5281/zenodo.7353060
Brief an Andrea Alciato
Creators: name: Amerbach, Bonifacius
Publisher: name: [s.n.]
Year: 1521

description: von Bonifacius Amerbach
description: Öffentliche Bibliothek der Universität Basel
description: Aus dem Amerbach-Kabinett.
description: Druck: Die Amerbachkorrespondenz / bearbeitet und herausgegeben von Alfred Hartmann, II Band: Die Briefe aus den Jahren 1514-1524. - Basel : Verlag der Universitätsbibliothek, 1943, Brief Nr. 791, S.306-310
description: Verzeichnung=Description=Inventaire April 2022 HAN-Katalogisierungsregeln ben
description: Digitalisierung=Digitization=Numérisation April 2022 TIFF
Philetor Thomas 1902
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Philetor

description: Philetor Thomas, 1902. Ann. Mag. Nat. Hist., ser. 7, 9:220. TYPE SPECIES: Philetor rohui Thomas, 1902 (= Vespertilio brachypterus Temminck, 1840).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 219, DOI: 10.5281/zenodo.7353060
Demographic characteristics and complications of nontraumatic spinal cord injury
Creators: name: New, Peter.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
GW150914: The Advanced LIGO Detectors in the Era of First Discoveries
Creators: name: The LIGO Scientific Collaboration
name: The Virgo Collaboration
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Following a major upgrade, the two advanced detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO) held their first observation run between September 2015 and January 2016. With a strain sensitivity of $10^{-23}/\sqrt{\mathrm{Hz}}$ at 100 Hz, the product of observable volume and measurement time exceeded that of all previous runs within the first 16 days of coincident observation. On September 14th, 2015 the Advanced LIGO detectors observed a transient gravitational-wave signal determined to be the coalescence of two black holes [Phys. Rev. Lett. 116, 061102 (2016)], launching the era of gravitational-wave astronomy. The event, GW150914, was observed with a combined signal-to-noise ratio of 24 in coincidence by the two detectors. Here we present the main features of the detectors that enabled this observation. At full sensitivity, the Advanced LIGO detectors are designed to deliver another factor of three improvement in the signal-to-noise ratio for binary black hole systems similar in masses to GW150914.
Heat flux and information backflow in cold condensed matter systems
Creators: name: Schmidt, Rebecca
name: Maniscalco, Sabrina
name: Ala-Nissila, Tapio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We examine non-Markovian effects in an open quantum system from the point of view of information flow. To this end, we consider the spin-boson model with a cold reservoir, accounting for the exact time-dependent correlations between the system and the bath to study the exchange of information and heat. We use an information theoretic measure of the relevant memory effects and demonstrate that the information backflow from the reservoir to the system does not necessarily correlate with the backflow of heat. We also examine the influence of temperature and coupling strength on the loss and gain of information between the system and the bath. Finally, we discuss how additional driving changes the backflow of information, giving rise to potential applications in reservoir engineering.
description: 5 pages, 4 figures
Philetor brachypterus
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Philetor
Philetor brachypterus

description: Philetor brachypterus (Temminck, 1840). Monogr. Mamm., 2:215. TYPE LOCALITY: Indonesia, Sumatra, Padang Dist. DISTRIBUTION: Nepal, W Malaysia, Sumatra, Java, Borneo, Philippines, Sulawesi, New Guinea, New Britain Isl (Bismarck Arch.), perhaps Banka Isl (Indonesia). SYNONYMS: rohui, veraecundus (see Hill, 19714).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 219, DOI: 10.5281/zenodo.7353060
[Spalding mit seinen Kindern am Grabe seiner Gattin]
Creators: name: Füssli, Johann Heinrich
Publisher: name: [s.n.]
Year: 1763
Subjects: Spalding, Johann Joachim1714-1804

description: H. F. [i.e. Johann Heinrich Füssli]
description: Bezeichnet an der Denkmalsmauer "Cur hoc; plus ultra quaere", auf dem Sockel "H.F."
Joh: Jacobus Scheuchzer : Med. D. Physic. Math. Prof. Coll. Carol: Canon Acad: Imper: Naturæ Curios: Adjunct:, dict Accarnam Socc. Regg. Angl. et Boruss. atque Instit. Bonon Membru[m] ; ob: 23. Junij 1735 æt. 61
Creators: name: Heidegger, Hans Ulrich
name: Lochmann, Hans Conrad
Publisher: name: [s.n.]
Year: 1734
Subjects: Scheuchzer, Johann Jacob1672-1733

description: Porträt des Arztes und Naturforschers Johann Jacob Scheuchzer (1672-1733), im Hintergrund eine Gebirgslandschaft mit Wasserfall, mit der Hand auf ein Alpenmannstreu (Eryngium alpinum), das über einem Buch liegt, weisend, links Muschel; Beschriftung in Kartusche unten links
description: Pinx. J. Huld. Heidegger
description: Gemalt 1734 auf Veranlassung von Dr. med. Johann Conrad Lochmann (1710-1743)
description: Geschenk der Naturforschenden Gesellschaft 1840 Exemplar der Zentralbibliothek Zürich, Graphische Sammlung und Fotoarchiv
description: Vermkerk auf der Rückseite der Leinwand mit Pinsel in Schwarz: "In memoriam Mæcenatis atque / Præceptoris Colendissime post piu[m] obitu[m] / pingi curavit Joh: Conradus / Lochmann M.D. 1734"
Aria à 5 (in Discante) : Della Buona figliola Maritata : "O me morie ancor gradite"
Creators: name: Piccinni, Niccolò
name: Goldoni, Carlo
Publisher: name: [s.n.]
Year: 1761

description: Stimmen: Sopran [Marianna] (soprano) + Bassinstrument (die letzte 4 Takten fehlen) ; Violine I zur Unterstützung der Stimme (mit Sopran ohne Text im Rezitativ) (violino primo per sostener la voce) ; Violine I (violino primo) ; Violine II (violino secondo) ; Viola (alto viola) ; Bassinstrument (basso)
description: Del Signore Nicola Piccini ; [Text von Carlo Goldoni]
description: Aus der Oper "La buona figliuola maritata" (1761)
description: Italienisch
description: Verzeichnung=Description=Inventaire 2009 Übernahme Rekatalogis. AK UB durch Medea 2002-2005
description: Verzeichnung=Description=Inventaire November 2021 HAN-Katalogisierungsregeln jpl
Structure of prominence legs: Plasma and magnetic field
Creators: name: Levens, P. J.
name: Schmieder, B.
name: Labrosse, N.
name: Ariste, A. López
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the properties of a `solar tornado' observed on 15 July 2014, and aim to link the behaviour of the plasma to the internal magnetic field structure of the associated prominence. We made multi-wavelength observations with high spatial resolution and high cadence using SDO/AIA, the IRIS spectrograph and the Hinode/SOT instrument. Along with spectropolarimetry provided by the THEMIS telescope we have coverage of both optically thick emission lines and magnetic field information. AIA reveals that the two legs of the prominence are strongly absorbing structures which look like they are rotating, or oscillating in the plane of the sky. The two prominence legs, which are both very bright in Ca II (SOT), are not visible in the IRIS Mg II slit-jaw images. This is explained by the large optical thickness of the structures in Mg II which leads to reversed profiles, and hence to lower integrated intensities at these locations than in the surroundings. Using lines formed at temperatures lower than 1 MK, we measure relatively low Doppler shifts on the order of +/- 10 km/s in the tornado-like structure. Between the two legs we see loops in Mg II, with material flowing from one leg to the other, as well as counterstreaming. It is difficult to interpret our data as showing two rotating, vertical structures which are unrelated to the loops. This kind of `tornado' scenario does not fit with our observations. The magnetic field in the two legs of the prominence is found to be preferentially horizontal.
description: 13 pages, 14 figures, one table
Aria à 10 (in Discante) con Recitativo : Recitativo: "Ah non Povero Prence" : Aria: "Da Mille Dubbi, oh Dio"
Creators: name: Piccinni, Niccolò
name: Metastasio, Pietro
Publisher: name: [s.n.]
Year: 1761

description: Stimmen: Sopran (soprano) + Bassinstrument ; Violine I obligato zur Unterstützung der Stimme  (violino primo obligato per secondare la vocce) ; Sopran (nur im Rezitativ) + Violine I (violino primo) ; Sopran (nur im Rezitativ) + Violine II (violino secondo) ; Sopran (nur im Rezitativ) + Viola I (viola prima/viola) ; Viola II (viola secondo) ; Sopran (nur im Rezitativ) + Bassinstrument (basso) ; Bassinstrument (basso) (nur Arie) ; Flöte I (flauto primo) ; Flöte II (flauto secondo) ; Trompete (clarino) ; Horn I (corno primo in F) ; Horn I (im Altschlüssel notiert) (corno primo in alto viola) ; Horn II (corno secondo in F) ; Horn II (im Altschlüssel notiert) (corno secondo in alto viola) ; Umschlag
description: Del Signore Piccini ; [Text von Pietro Metastasio]
description: Aus der Oper "Olimpiade" (1761)
description: Auf der Rückseite der Trompetenstimme befinden sich einer Violine obligato-Stimme eines anderes Werks
description: Italienisch
description: Verzeichnung=Description=Inventaire 2009 Übernahme Rekatalogis. AK UB durch Medea 2002-2005
description: Verzeichnung=Description=Inventaire November 2021 HAN-Katalogisierungsregeln jpl
Pipistrellus Kaup 1829
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Pipistrellus

description: Pipistrellus Kaup, 1829. Skizz. Entwickel.-Gesch. Nat. Syst. Europ. Thierwelt, 1:98. TYPE SPECIES: Vespertilio pipistrellus Schreber, 1774. SYNONYMS: Arielulus, Falsistrellus, Hypsugo, Perimyotis, Scotozous, Vansonia. COMMENTS: For synonyms see Ellerman and Morrison-Scott (1951: 162-163); but also see Hill (1976:25); Kitchener et al. (1986); and Menu (1984). Hypsugo was considered a full genus by Tiunov (1986). Hill and Harrison (1987) would transfer Neomicia and Vespadelus to here from Eptesicus. Otherwise the subgenera they use are followed here.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 219, DOI: 10.5281/zenodo.7353060
description: {"references": ["Ellerman, J. R., and T. C. S. Morrison-Scott. 1951. Checklist of Palaearctic and Indian mammals 1758 to 1946. Trustees of the British Museum (Natural History), London, 810 pp.", "Hill, J. E. 1976. Bats referred to Hesperoptenus Peters, 1869 (Chiroptera: Vespertilionidae) with the description of a new subgenus. Bulletin of the British Museum (Natural History), Zoology Series, 30: 1 - 28.", "Menu, H. 1984. Revision du statut de Pipistrellus subflavus (F. Cuvier, 1832). Proposition d'un taxon generique nouveau: Perimyotis nov. gen. Mammalia, 48: 409 - 416.", "Tiunov, M. P. 1986. [External structure of the male accessory gland in chiropterans and utilization of this character in their taxonomy.] Zoologicheskii Zhurnal, 65: 1275 - 1279 (in Russian).", "Hill, J. E., and D. L. Harrison. 1987. The baculum in the Vespertilioninae (Chiroptera: Vespertilionidae) with a systematic review, a synopsis of Pipistrellus and Eptesicus, and the description of a new genus and subgenus. Bulletin of the British Museum (Natural History), Zoology Series, 52 (7): 225 - 305."]}
Communicating the environmental crisis to non-specialist audiences: A quality assessment of machine translated subtitles into three different languages
Creators: name: McDonagh, Sarah
Publisher: name: Zenodo
Year: 2023
Subjects: Education for sustainable development, eco-school, environmental education, sustainability, sustainability competences, GreenComp

description: Sarah's presentation focused on the topic of communicating the environmental crisis to non-specialist audiences. One aspect she discussed was the use of machine-translated subtitles in three different languages as a means of reaching a wider audience. The aim of this approach was to ensure that information about the environmental crisis is effectively conveyed and understood by individuals who may not be familiar with the subject matter. While the use of machine translation can be helpful in increasing accessibility, it is important to assess the quality of the translations to ensure accurate and meaningful communication.
Diagnosis of sleep disordered breathing by Victorian sleep centres
Creators: name: Manser, Renee.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Aria à 5 (in Discante) : "Una povera ragazza"
Creators: name: Piccinni, Niccolò
name: Goldoni, Carlo
Publisher: name: [s.n.]
Year: 1760

description: Stimmen: Sopran [Cecchina] + Bassinstrument ; Violine I (violino primo) ; Violine II (violino secondo) ; Viola (violetta) ; Bassinstrument (basso) ; Umschlag
description: Del Signore Piccini ; [Text von Carlo Goldoni]
description: Aus der Oper "La buona figliuola" (1760)
description: Italienisch
description: Verzeichnung=Description=Inventaire 2009 Übernahme Rekatalogis. AK UB durch Medea 2002-2005
description: Verzeichnung=Description=Inventaire November 2021 HAN-Katalogisierungsregeln jpl
Large and exact quantum degeneracy in a Skyrmion magnet
Creators: name: Doucot, B.
name: Kovrizhin, D. L.
name: Moessner, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We identify a large family of ground states of a topological Skyrmion magnet whose classical degeneracy persists to all orders in a semiclassical expansion. This goes along with an exceptional robustness of the concomitant ground state configurations, which are not at all dressed by quantum fluctuations. We trace these twin observations back to a common root: this class of topological ground states saturates a Bogomolny inequality. A similar phenomenology occurs in high-energy physics for some field theories exhibiting supersymmetry. We propose quantum Hall ferromagnets, where these Skyrmions configurations arise naturally as ground states away from integer filling, as the best available laboratory realisations.
description: 9.5 pages
Brief an Leonhard Christ[oph] Sturm
Creators: name: Kirch, Maria Margaretha
name: Kirch, Gottfried
Publisher: name: [s.n.]
Year: 1706

description: Macht, an Stelle ihres Mannes, St. auf das Auftreten von Sonnenflecken aufmerksam
description: von Mar[ia] Marg[aretha] Kirchin
description: Öffentliche Bibliothek der Universität Basel
description: Deutsch
description: Digitalisierung=Digitization=Numérisation April 2022 TIFF
description: Verzeichnung=Description=Inventaire Okt. 2016 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis, Briefkatalog und Originalbrief
description: Bl.213-216: 4 verschiedene Adressatsentwürfe für Leonhard Christoph Sturm, von Gottfried Kirch (davon 3 im Querformat)
Astrophysical Implications of the Binary Black-Hole Merger GW150914
Creators: name: The LIGO Scientific Collaboration
name: The Virgo Collaboration
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The discovery of the gravitational-wave source GW150914 with the Advanced LIGO detectors provides the first observational evidence for the existence of binary black-hole systems that inspiral and merge within the age of the Universe. Such black-hole mergers have been predicted in two main types of formation models, involving isolated binaries in galactic fields or dynamical interactions in young and old dense stellar environments. The measured masses robustly demonstrate that relatively "heavy" black holes ($\gtrsim 25\, M_\odot$) can form in nature. This discovery implies relatively weak massive-star winds and thus the formation of GW150914 in an environment with metallicity lower than $\sim 1/2$ of the solar value. The rate of binary black-hole mergers inferred from the observation of GW150914 is consistent with the higher end of rate predictions ($\gtrsim 1 \, \mathrm{Gpc}^{-3} \, \mathrm{yr}^{-1}$) from both types of formation models. The low measured redshift ($z \sim 0.1$) of GW150914 and the low inferred metallicity of the stellar progenitor imply either binary black-hole formation in a low-mass galaxy in the local Universe and a prompt merger, or formation at high redshift with a time delay between formation and merger of several Gyr. This discovery motivates further studies of binary-black-hole formation astrophysics. It also has implications for future detections and studies by Advanced LIGO and Advanced Virgo, and gravitational-wave detectors in space.
description: 17 pages, 4 figures, accepted to ApJL
Half-levitons -- zero-energy excitations of a driven Fermi sea
Creators: name: Moskalets, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A voltage pulse of a Lorentzian shape carrying a half of the flux quantum excites out of a zero-temperature Fermi sea an electron in a mixed state, which looks like a quasi-particle with an effectively fractional charge $e/2$. A prominent feature of such an excitation is a narrow peak in the energy distribution function laying exactly at the Fermi energy $ μ$. Another spectacular feature is that the distribution function has symmetric tails as above as below $ μ$, which results in a zero energy of an excitation. This sounds improbable since at zero temperature all available states below $ μ$ are fully occupied. The resolution is lying in the fact that such a voltage pulse excites also electron-hole pairs which free some space below $ μ$ and thus allow a zero-energy quasi-particle to exist. I discuss also how to address separately electron-hole pairs and a fractionally charged zero-energy excitation in experiment.
description: 6 pages, 3 figures
Pipistrellus aegyptius
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Pipistrellus
Pipistrellus aegyptius

description: Pipistrellus aegyptius (Fischer, 1829). Synopsis Mammalium, p. 105. TYPE LOCALITY: Egypt, Luxor. DISTRIBUTION: Egypt, N Sudan, Lybia, Algeria, Burkina Fasso. SYNONYMS: deserti. COMMENTS: Subgenus Pipistrellus. For use of this name in place of deserti see Qumsiyeh (1985).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 219, DOI: 10.5281/zenodo.7353060
description: {"references": ["Qumsiyeh, M. B. 1985. The bats of Egypt. Special Publications, The Museum, Texas Tech University Press, 23: 1 - 102."]}
Pipistrellus aero Heller 1912
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Pipistrellus
Pipistrellus aero

description: Pipistrellus aero Heller, 1912. Smithson. Mise. Coll., 60(12):3. TYPE LOCALITY: Kenya, Mathews Range, Mt. Gargues. DISTRIBUTION: NW Kenya, perhaps Ethiopia. COMMENTS: Subgenus Pipistrellus. The Ethiopian specimens in the British Museum are clearly P. kuhlii; see Hayman and Hill (1971:41).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 219, DOI: 10.5281/zenodo.7353060
description: {"references": ["Hayman, R. W., and J. E. Hill. 1971. Order Chiroptera. Part 2. Pp. 1 - 73, in The mammals of Africa: An identification manual (J. Meester and H. W. Setzer, eds.) [issued 15 Jul 1971]. Smithsonian Institution Press, Washington, D. C., not continuously paginated."]}
Pipistrellus affinis
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Pipistrellus
Pipistrellus affinis

description: Pipistrellus affinis (Dobson, 1871). Proc. Asiat. Soc. Bengal, p. 213. TYPE LOCALITY: Burma, Bhamo. DISTRIBUTION: NE Burma, Yunnan (China), N India. COMMENTS: Subgenus Falsistrellus.
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 219, DOI: 10.5281/zenodo.7353060
Pipistrellus anchietai
Creators: name: Koopman, Karl F.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Pipistrellus
Pipistrellus anchietai

description: Pipistrellus anchietai (Seabra, 1900). J. Sei. Math. Phys. Nat. Lisboa, ser. 2, 6:26, 120. TYPE LOCALITY: Angola, Cahata. DISTRIBUTION: Angola, S Zaire, Zambia. COMMENTS: Subgenus Hypsugo. The oldest name for this species may be bicolor; see Koopman (1975:404).
description: Published as part of Karl F. Koopman, 1993, Order Chiroptera, pp. 137-241 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 219, DOI: 10.5281/zenodo.7353060
description: {"references": ["Koopman, K. F. 1975. Bats of the Sudan. Bulletin of the American Museum of Natural History, 154: 353 - 444."]}
Holographic imaging through a scattering medium by diffuser-aided statistical averaging
Creators: name: Purcell, Michael J.
name: Kumar, Manish
name: Rand, Stephen C.
name: Lakshminarayanan, Vasudevan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We introduce a practical digital holographic method capable of imaging through a diffusive or scattering medium. The method relies on statistical averaging from a rotating ground glass diffuser to negate the adverse effects caused by speckle introduced by a first, static diffuser or scattering medium. In particular, a setup based on Fourier transform holography is used to show that an image can be recovered after scattering by introducing an additional diffuser in the optical setup. This method is capable of recovering object information from behind a scattering layer in biomedical or military imaging applications.
description: 8 pages, 7 figures
Spatio-temporal Control of Light Transmission through a Multimode Fiber with Strong Mode Coupling
Creators: name: Xiong, Wen
name: Ambichl, Philipp
name: Bromberg, Yaron
name: Rotter, Stefan
name: Cao, Hui
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally generate and characterize the eigenstates of the Wigner-Smith time-delay matrix, called principal modes, in a multimode fiber with strong mode coupling. The unique spectral and temporal properties of principal modes enable a global control of the temporal dynamics of optical pulses transmitted through the fiber, despite random mode mixing. Our analysis reveals that the well-defined delay time of the eigenstates are formed by multi-path interference, which can be effectively manipulated by the spatial degrees of freedom of the input wavefront. This study is essential to controlling the dynamics of wave scattering, paving the way for coherent control of pulse propagation through complex media.
Seed Endophytic Microbial Populations between Organically and Conventionally Grown Rice are Taxonomically and Functionally Different
Creators: name: Khanal, Sabin
name: Imran, Muhammad
name: Antony-Babu, Sanjay
name: Xin-Gen Zhou
Publisher: name: Zenodo
Year: 2023
Subjects: Rice, Organic farming, biocontrol, seedling diseases, SSU-based metabarcoding

description: In this study, we characterized the endophytic microbial communities in seeds of rice grown under organic and conventional management through culture-dependent and independent analyses. The SSU-based metabarcoding, targeting the V4 regions of 16S rRNA and ITS-based region was used in the identification of bacterial taxa and fungal taxa, respectively. The cultivable bacterial isolates were also identified by the full length 16S rRNA gene. These culturable bacteria were screened for their antagonistic activities against rice pathogens, Marasmius graminum and Rhizoctonia solani AG1, AG4, and AG11. Our results suggests that there is significant difference in the endophytic microbial populations in rice seeds grown under organic and conventional management.
Sonnenfleckenzeichnung Nr. 26577.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 11.01.1983, erstellt von Hans Ulrich Keller
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1983

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der 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 sowie Gr (Anzahl g) und darüber hinaus einer Spalte für A: mit Hilfe eines korrekt-reduzierenden optischen Filters von blossem Auge sichtbare Flecken
Sonnenfleckenzeichnung Nr. 26573.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.01.1983, erstellt von Hans Ulrich Keller.
Zusätzlich ist vermerkt: Beobachtung unvollständig (nicht abgeschlossen)
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1983

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Subtitles in 360º video Results from an eye-tracking experimen
Creators: name: Brescia-Zapata, Marta
Publisher: name: Zenodo
Year: 2023
Subjects: Green Deal, GreenSCENT, Horizon2020, UX, Accessibility, Diversity, Inclusion, GreenVerse, 360

description: This presentation focuses on the findings of an eye-tracking experiment conducted to evaluate the effectiveness of subtitles in 360º video content.
Sonnenfleckenzeichnung Nr. 26576.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 10.01.1983, erstellt von Hans Ulrich Keller
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1983

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der 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 sowie Gr (Anzahl g) und darüber hinaus einer Spalte für A: mit Hilfe eines korrekt-reduzierenden optischen Filters von blossem Auge sichtbare Flecken
Magnetic curves associated to Killing vector fields in a Galilean space
Creators: name: Aydin, Muhittin Evren
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A35, 53B25, 53Z05

description: In this paper, we completely classify the magnetic curves (also N-magnetic curves with constant curvature) in a Galilean 3-space associated to a Killing vector field.
description: 9 pages, 2 figures
Sonnenfleckenzeichnung Nr. 26574.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 08.01.1983, erstellt von Hans Ulrich Keller
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1983

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der 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 sowie Gr (Anzahl g) und darüber hinaus einer Spalte für A: mit Hilfe eines korrekt-reduzierenden optischen Filters von blossem Auge sichtbare Flecken
Soziokulturelle Agitation: Auf ins heisse Universum der Animation
Creators: name: Althaus, Andreas
name: Vögeli, Sandra
Publisher: name: Zenodo
Year: 2011
Subjects: subject: gnd:4299677-6
subject: gnd:4020588-5

description: Die Literaturarbeit nimmt sich folgenden Fragen an: Welche gesellschaftlichen Veränderungen sollen aufgrund einer Gesellschaftsanalyse angestrebt werden? Inwiefern und mit welchen Ansätzen kann und soll die Soziokulturelle Animation zum Erreichen dieser Veränderungen beitragen? Die Autorin und der Autor erarbeiten damit einen Beitrag zum kritischen Diskurs der Soziokulturellen Animation. Sie gehen dabei von der Annahme aus, dass die Soziokulturelle Animation nur mit dem Fokus auf eine gesellschaftliche Veränderung die Situation von Benachteiligten nachhaltig verbessern kann. Aus den Gesellschaftstheorien von Karl Marx und der Kritischen Theorie – insbesondere von Max Horkheimer, Theodor W. Adorno und Erich Fromm, Jürgen Habermas und Pierre Bourdieu – werden anzustrebende gesellschaftliche Veränderungen abgeleitet. Bei der Betrachtung der gesellschaftlichen Aufgaben der Soziokulturellen Animation wird erkannt, dass ihr eine grundsätzliche Zuständigkeit für die genannten Veränderungen zukommt. Die Ansätze von Saul Alinsky und Paulo Freire geben Impulse für die Praxis. Diese ergeben mit den anzustrebenden Veränderungen in der Synthese die «Soziokulturelle Agitation». Dabei wird ersichtlich, dass sich die Soziokulturelle Animation unter anderem Aufgaben, wie dem Fördern eines richtigen Bewusstseins, dem Betrachten von Problemlagen im gesellschaftlichen Kontext, dem Abbau von Konkurrenz und dem Übernehmen von Entscheidungsmacht widmen soll. Auch stellt sich heraus, dass sich Professionelle vermehrt klar auf die Seite von Benachteiligten stellen müssen, wie dies Jean-Claude Gillet im «heissen Universum der Animation» beschreibt.
description: + Code Diss LU: hslusa bask 2011 be + Fussnote: Bachelor-Arbeit, Hochschule Luzern - Soziale Arbeit, Ausbildungsgang Soziokultur, 2011
Sonnenfleckenzeichnung Nr. 26575.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 09.01.1983, erstellt von Hans Ulrich Keller
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1983

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der 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 sowie Gr (Anzahl g) und darüber hinaus einer Spalte für A: mit Hilfe eines korrekt-reduzierenden optischen Filters von blossem Auge sichtbare Flecken
Sonnenfleckenzeichnung Nr. 26579.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 13.01.1983, erstellt von Hans Ulrich Keller
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1983

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der 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 sowie Gr (Anzahl g) und darüber hinaus einer Spalte für A: mit Hilfe eines korrekt-reduzierenden optischen Filters von blossem Auge sichtbare Flecken
Sonnenfleckenzeichnung Nr. 26578.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 12.01.1983, erstellt von Hans Ulrich Keller
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1983

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der 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 sowie Gr (Anzahl g) und darüber hinaus einer Spalte für A: mit Hilfe eines korrekt-reduzierenden optischen Filters von blossem Auge sichtbare Flecken
Synthesis of a mixed-valent tin nitride and considerations of its possible crystal structures
Creators: name: Caskey, Christopher M.
name: Holder, Aaron
name: Shulda, Sarah
name: Christensen, Steve
name: Diercks, David
name: Schwartz, Craig P.
name: Biagioni, David
name: Nordlund, Dennis
name: Kukliansky, Alon
name: Natan, Amir
name: Prendergast, David
name: Orvananos, Bernardo
name: Sun, Wenhao
name: Zhang, Xiuwen
name: Ceder, Gerbrand
name: Tumas, William
name: Ginley, David S.
name: Perkins, John D.
name: Stevanovic, Vladan
name: Pylypenko, Svitlana
name: Lany, Stephan
name: Richards, Ryan M.
name: Zakutayev, Andriy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Recent advances in theoretical structure prediction methods and high-throughput computational techniques are revolutionizing experimental discovery of the thermodynamically stable inorganic materials. Metastable materials represent a new frontier for studies, since even simple binary non ground state compounds of common elements may be awaiting discovery. However, there are significant research challenges related to non-equilibrium thin film synthesis and crystal structure predictions, such as small strained crystals in the experimental samples and energy minimization based theoretical algorithms. Here we report on experimental synthesis and characterization, as well as theoretical first-principles calculations of a previously unreported mixed-valent binary tin nitride. Thin film experiments indicate that this novel material is N-deficient SnN with tin in the mixed II/IV valence state and a small low-symmetry unit cell. Theoretical calculations suggest that the most likely crystal structure has the space group 2 (SG2) related to the distorted delafossite (SG166), which is nearly 0.1 eV/atom above the ground state SnN polymorph. This observation is rationalized by the structural similarity of the SnN distorted delafossite to the chemically related Sn3N4 spinel compound, which provides a fresh scientific insight into the reasons for growth of polymorphs of the metastable material. In addition to reporting on the discovery of the simple binary SnN compound, this paper illustrates a possible way of combining a wide range of advanced characterization techniques with the first-principle property calculation methods, to elucidate the most likely crystal structure of the previously unreported metastable materials.
Ne X X-ray Emission due to Charge Exchange in M82
Creators: name: Cumbee, R. S.
name: Liu, L.
name: Lyons, D.
name: Schultz, D. R.
name: Stancil, P. C.
name: Wang, J. G.
name: Ali, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recent X-ray observations of star-forming galaxies such as M82 have shown the Ly beta/Ly alpha line ratio of Ne X to be in excess of predictions for thermal electron impact excitation. Here we demonstrate that the observed line ratio may be due to charge exchange and can be used to constrain the ion kinetic energy to be <500 eV/u. This is accomplished by computing spectra and line ratios via a range of theoretical methods and comparing these to experiments with He over astrophysically relevant collision energies. The charge exchange emission spectra calculations were performed for Ne[10+] +H and Ne[10+] +He using widely applied approaches including the atomic orbital close coupling, classical trajectory Monte Carlo, and multichannel Landau- Zener (MCLZ) methods. A comparison of the results from these methods indicates that for the considered energy range and neutrals (H, He) the so-called "low-energy l-distribution" MCLZ method provides the most likely reliable predictions.
description: 8 pages, 9 figures
Sonnenfleckenzeichnung Nr. 26572.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 06.01.1983, erstellt von Hans Ulrich Keller
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1983

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der 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 sowie Gr (Anzahl g) und darüber hinaus einer Spalte für A: mit Hilfe eines korrekt-reduzierenden optischen Filters von blossem Auge sichtbare Flecken
Sonnenfleckenzeichnung Nr. 26571.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.01.1983, erstellt von Hans Ulrich Keller
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1983

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der 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 sowie Gr (Anzahl g) und darüber hinaus einer Spalte für A: mit Hilfe eines korrekt-reduzierenden optischen Filters von blossem Auge sichtbare Flecken