cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sonnenfleckenzeichnung Nr. 110.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 18.05.1991, 07:15, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Universality, exponents and anomaly cancellation in disordered Dirac fermions
Creators: name: Mastropietro, Vieri
Publisher: name: arXiv
Year: 2013
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Disordered 2D chiral fermions provide an effective description of several materials including graphene and topological insulators. While previous analysis considered delta correlated disorder and no ultraviolet cut-offs, we consider here the effect of short range correlated disorder and the presence of a momentum cut-off, providing a more realistic description of condensed matter models. We show that the density of states is anomalous with a critical exponent function of the disorder and that conductivity is universal only when the ultraviolet cut-off is removed, as consequence of the supersymmetric cancellation of the anomalies.
Klimawandel - Schicksal oder bewältigbare Herausforderung
Creators: name: Hauf, Thomas
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2019
Subjects: subject: Klimawandel
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::551 | Geologie, Hydrologie, Meteorologie

description: no abstract available
Urban Development, the Environment and Automobility
Creators: name: Lathrop, George T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1991

description: North Carolina shares four transportation-related problems with the rest of the United States: • Environmental quality • Dependence on petroleum • Congestion and delay on highway and transit systems • The changing nature of cities More specifically, the relationship shared by these problems involves the emergence of the automobile as the dominant means of personal individual transportation in the United States and the characteristics of the automobile itself.
Sonnenfleckenzeichnung Nr. 22.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 30.01.1991, 08:30, erstellt von Michele Bianda, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Top properties in $t\bar{t}$ events at CMS (includes mass)
Creators: name: Adler, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Selected results from the following topics are presented: Measurements of several top quark properties are obtained from the CMS data collected in 2011 at a center-of-mass energy of 7 TeV. The results include measurements of the top quark mass, the W helicity in top decays, the top quark charge, and of the $t\bar{t}$ spin correlation and the search for anomalous couplings.
description: 5 pages, 10 figures. Presented at HCP 2012 Hadron Collider Physics Symposium 2012
Sonnenfleckenzeichnung Nr. 225.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 17.09.1991, 07:15, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Morphological resources in the LiLa Knowledge Base. An overview of past, present and future work
Creators: name: Pellegrini, Matteo
Publisher: name: Zenodo
Year: 2021
Subjects: Latin
Morphology
Linked Data
Language Resources

description: Presentation given at the Morphology Reading Group of the "Laboratoire de Linguistique Formelle", Université de Paris (17 December 2021)
Critiquing the Critique: Analyzing a Report on the Housing Credit Program
Creators: name: Shelbourne, Mark
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: The federal low-income housing tax credit (“LIHTC”) is the largest production resource for affordable rental housing. Advocacy groups have critiques of the program’s administration, but a recent study used to support their arguments contains multiple controversial elements. In evaluating this report, Mark Shelburne also discusses racial desegregation, concentrating poverty, preservation, community revitalization, and other related housing policy issues. This article concludes that those researching the LIHTC program should communicate with state administrators in order to avoid analytical flaws.
Terahertz pulse generation by two-color laser fields with circular polarization
Creators: name: Tailliez, C.
name: Stathopulos, A.
name: Skupin, S.
name: Buožius, D.
name: Babushkin, I.
name: Vaičaitis, V.
name: Bergé, L.
Publisher: name: Bristol : IOP Publishing Ltd.
Year: 2020
Subjects: subject: filamentation
subject: plasma
subject: polarization control
subject: terahertz generation
subject: ultrashort pulse propagation
subject: Circular polarization
subject: Color
subject: Ionization of gases
subject: Optical pumping
subject: Photocurrents
subject: Ultrafast lasers
subject: 3-D numerical simulation
subject: Circularly polarized
subject: Circularly polarized lasers
subject: Destructive interference
subject: Linearly polarized
subject: Terahertz pulse generation
subject: Terahertz radiation
subject: Two-color laser fields
subject: Terahertz waves
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We study the influence of the polarization states of ionizing femtosecond two-color pulses on the emitted terahertz radiation in gases. A local-current model and plane-wave evaluations justify the previously-reported impact on the THz energy yield and a (almost) linearly-polarized THz field when using circularly-polarized laser harmonics. For such pump pulses, the THz yield is independent of the relative phase between the two colors. When the pump pulses have same helicity, the increase in the THz yield is associated with longer ionization sequences and higher electron transverse momenta acquired in the driving field. Reversely, for two color pulses with opposite helicity, the dramatic loss of THz power comes from destructive interferences driven by the highly symmetric response of the photocurrents lined up on the third harmonic of the fundamental pulse. While our experiments confirm an increased THz yield for circularly-polarized pumps of same helicity, surprisingly, the emitted THz radiation is not linearly-polarized. This effect is explained by means of comprehensive 3D numerical simulations highlighting the role of the spatial alignment and non-collinear propagation of the two colors. © 2020 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft.
Radiation Hardness of Graphene and MoS2 Field Effect Devices Against Swift Heavy Ion Irradiation
Creators: name: Ochedowski, O.
name: Marinov, K.
name: Wilbs, G.
name: Keller, G.
name: Scheuschner, N.
name: Severin, D.
name: Bender, M.
name: Maultzsch, J.
name: Tegude, F. J.
name: Schleberger, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have investigated the deterioration of field effect transistors based on twodimensional materials due to irradiation with swift heavy ions. Devices were prepared with exfoliated single layers of MoS2 and graphene, respectively. They were characterized before and after irradiation with 1.14 GeV U228+2 ions using three different fluences. By electrical characterization, atomic force microscopy and Raman spectroscopy we show that the irradiation leads to significant changes of structural and electrical properties. At the highest fluence of 4 x 102^11 ions/cm^2, the MoS2 transistor is destroyed, while the graphene based device remains operational, albeit with an inferior performance.
Sonnenfleckenzeichnung Nr. 205.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 26.08.1991, 07:00, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
O Curriculum Vitae e a bibliografia de Serafim Leite (1890-1969)
Creators: name: Pratas, Leonor
Publisher: name: Instituto de História da Arte, Faculdade de Ciências Sociais e Humanas, Universidade Nova de Lisboa
Year: 2023

description: O Arquivo Português da Companhia de Jesus (APCJ) tem à sua guarda o espólio do historiador jesuíta Serafim Leite, que, entre manuscritos, impressos e outras tipologias arquivísticas, conserva o seu Curriculum Vitae (Doc. 1) e uma bibliografia (Doc. 2) de obras publicadas na sua vida. Estes dois documentos, dactilografados, com numeração própria, são fundamentais para entender os principais passos do seu percurso, assim como ficar a conhecer, a partir da sua redação, as obras a que consagrou a sua vida.
A transcrição e edição destas fontes, dactilografadas, surge no quadro do seed-project Uma História 'em construção'. Artistas e Artífices nos espólios de Francisco Rodrigues, S.J. (1873-1956) e de Serafim Leite, S.J. (1890-1969), financiado pelo Instituto de História da Arte, Faculdade de Ciências Sociais e Humanas da Universidade NOVA de Lisboa / IN2PAST — Laboratório Associado para a Investigação e Inovação em Património, Artes, Sustentabilidade e Território e realizado em colaboração com a Brotéria.
title: Дни науки и инноваций НовГУ: материалы XXIX Всероссийской научой конференции преподавателей, аспирантов и студентов НовГУ
Creators: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Часть 2 сборника включает 40 статей по экономике, управлению и праву, педагогике и психологии, авторы которых явились победителями в секционных заседаниях традиционной научной конференции в НовГУ. В ряде статей сборника поднимаются вопросы внедрения инновационных технологий в области экономики, права и образования.
Предназначено для студентов, аспирантов, молодых исследователей, а также специалистов в соответствующей области науки и для широкого круга интересующихся достижениями социально-гуманитарного направления в Новгородском регионе.
Sonnenfleckenzeichnung Nr. 204.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 25.08.1991, 08:00, erstellt von Andrea Manna, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 86.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 20.04.1991, 09:00, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
RESISTIRE factsheet: Transformative Funding: A Pathway for Creative and Effective Crisis Response
Creators: name: Altınay, Ayşe Gül
name: Ensari, Pınar
name: Türker, Nazlı
Publisher: name: Zenodo
Year: 2023
Subjects: gender+
COVID-19
Feminist Funding
Civil Society Organizations
Crisis response

description: The RESISTIRÉ research has demonstrated that civil society organisations (CSOs) played an essential role in responding to and managing the COVID-19 pandemic as a crisis, particularly in terms of addressing the needs of the most vulnerable groups and mitigating intersectional and gendered inequalities. Yet the lack of secure, flexible, and sustainable funding interrupted and in some cases hampered these vital efforts. As Europe and the world face multiple and intersecting crises (health, war, energy, food security, environmental degradation, drought, fires, earthquakes, gender-based violence), it has become all the more imperative to design funding schemes that support CSO resilience and enable rapid and effective civic response to crises. This requires a shift in funding schemes towards participatory, transformative, flexible, long-term, capacity-building funding.
Luzula lutea
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. lutea (L.) DC. Cat. 15. Gartenflüchtling. l: Vouvry (F. 1923); Monthey (F. 1923); Champery (Thommen 1945); Les Marecottes (J, Wilczek, Wurgler).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Sonnenfleckenzeichnung Nr. 182.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 03.08.1991, 07:00, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Effect of resonant magnetic perturbations with toroidal mode numbers of 4 and 6 on ELMs in single null H-mode plasmas in MAST
Creators: name: Kirk, A.
name: Chapman, I. T.
name: Harrison, J.
name: Liu, Yueqiang
name: Nardon, E.
name: Saarelma, S.
name: Scannell, R.
name: Thornton, A. J.
name: team, the MAST
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The application of resonant magnetic perturbations (RMPs) with a toroidal mode number of n=4 or n=6 to lower single null plasmas in the MAST tokamak produces up to a factor of 5 increase in Edge Localized Mode (ELM) frequency and reduction in plasma energy loss associated with type-I ELMs. A threshold current for ELM mitigation is observed above which the ELM frequency increases approximately linearly with current in the coils. Despite a large scan of parameters, complete ELM suppression has not been achieved. The results have been compared to modelling performed using either the vacuum approximation or including the plasma response. During the ELM mitigated stage clear lobe structures are observed in visible-light imaging of the X-point region. The size of these lobes is correlated with the increase in ELM frequency observed. The characteristics of the mitigated ELMs are similar to those of the natural ELMs suggesting that they are type I ELMs which are triggered at a lower pressure gradient. The application of the RMPs in the n=4 and n=6 configurations before the L-H transition has little effect on the power required to achieve H-mode while still allowing the first ELM to be mitigated.
description: 48 pages, 23 figures. This is an author-created, un-copyedited version of an article accepted for publication in Plasma Phys. Control. Fusion. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it
Statistical Analysis on the Structural Size of Simulated Thin Film Growth with Molecular Dynamics for Glancing Angle Incidence Deposition
Creators: name: Badorreck, Holger
name: Jensen, Lars
name: Ristau, Detlev
name: Jupé, Marco
Publisher: name: Basel : MDPI
Year: 2021
Subjects: subject: glancing angle deposition
subject: thin film growth
subject: molecular dynamics
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: For the purpose of a deeper understanding of thin film growth, in the last two decades several groups developed models for simulation on the atomistic scale. Models using molecular dynamics as their simulation method already give results comparable to experiments, however statistical analysis of the simulations themselves are lacking so far, reasoned by the limits imposed by the computational power and parallelization that can only be used in lateral dimensions. With advancements of software and hardware, an increase in simulation speed by a factor of up to 10 can be reached. This allows either larger structures and/or more throughput of the simulations. The paper analyses the significance of increasing the structure size in lateral dimensions and also the repetition of simulations to gain more insights into the statistical fluctuation contained in the simulations and how well the coincidence with the experiment is. For that, glancing angle incidence deposition (GLAD) coatings are taken as an example. The results give important insights regarding the used interaction potential, the structure size and resulting important differences for the density, surface morphology, roughness and anisotropy. While larger structures naturally can reproduce the real world in more detail, the results show which structure sizes are needed for these aspects without wasting computational resources.
Including the Word Formation Latin Resource in the LiLa Knowledge Base
Creators: name: Pellegrini, Matteo
name: Litta, Eleonora
name: Passarotti, Marco
name: Mambrini, Francesco
name: Moretti, Giovanni
Publisher: name: Zenodo
Year: 2021
Subjects: Latin
Morphology
Word Formation
Language Resource
Linked Data

description: Presentation given at the International Symposium of Morphology (22-24 September 2021)
A comparative study of root-based and stem-based approaches for measuring the similarity between arabic words for arabic text mining applications
Creators: name: Froud, Hanane
name: Lachkar, Abdelmonaim
name: Ouatik, Said Alaoui
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Representation of semantic information contained in the words is needed for any Arabic Text Mining applications. More precisely, the purpose is to better take into account the semantic dependencies between words expressed by the co-occurrence frequencies of these words. There have been many proposals to compute similarities between words based on their distributions in contexts. In this paper, we compare and contrast the effect of two preprocessing techniques applied to Arabic corpus: Rootbased (Stemming), and Stem-based (Light Stemming) approaches for measuring the similarity between Arabic words with the well known abstractive model -Latent Semantic Analysis (LSA)- with a wide variety of distance functions and similarity measures, such as the Euclidean Distance, Cosine Similarity, Jaccard Coefficient, and the Pearson Correlation Coefficient. The obtained results show that, on the one hand, the variety of the corpus produces more accurate results; on the other hand, the Stem-based approach outperformed the Root-based one because this latter affects the words meanings.
Electronic analogy of Goos-Hänchen effect: a review
Creators: name: Chen, Xi
name: Lu, Xiao-Jing
name: Ban, Yue
name: Li, Chun-Fang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The analogies between optical and electronic Goos-Hänchen effects are established based on electron wave optics in semiconductor or graphene-based nanostructures. In this paper, we give a brief overview of the progress achieved so far in the field of electronic Goos-Hänchen shifts, and show the relevant optical analogies. In particular, we present several theoretical results on the giant positive and negative Goos-Hänchen shifts in various semiconductor or graphen-based nanostructures, their controllability, and potential applications in electronic devices, e.g. spin (or valley) beam splitters.
description: 21 pages, 5 figures, contribution to "Beam Shifts" special issue in Journal of Optics
Crystal structure of (1S,2R,5R,6R)-2-methoxy-6-(16-nitrophenylethynyl)-1-azabicyclo[3.2.2]nonane, C17H20N2O3
Creators: name: Frackenpohl, J.
name: Roper, S.
name: Hoffmann, H.M.R.
name: Wartchow, Rudolf
Publisher: name: Berlin, Boston : De Gruyter
Year: 2000
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Discovery of an ultramassive pulsating white dwarf
Creators: name: Hermes, J. J.
name: Kepler, S. O.
name: Castanheira, Barbara G.
name: Gianninas, A.
name: Winget, D. E.
name: Montgomery, M. H.
name: Brown, Warren R.
name: Harrold, Samuel T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We announce the discovery of the most massive pulsating hydrogen-atmosphere (DA) white dwarf (WD) ever discovered, GD 518. Model atmosphere fits to the optical spectrum of this star show it is a 12,030 +/- 210 K WD with a log(g) = 9.08 +/- 0.06, which corresponds to a mass of 1.20 +/- 0.03 Msun. Stellar evolution models indicate that the progenitor of such a high-mass WD endured a stable carbon-burning phase, producing an oxygen-neon-core WD. The discovery of pulsations in GD 518 thus offers the first opportunity to probe the interior of a WD with a possible oxygen-neon core. Such a massive WD should also be significantly crystallized at this temperature. The star exhibits multi-periodic luminosity variations at timescales ranging from roughly 425-595 s and amplitudes up to 0.7%, consistent in period and amplitude with the observed variability of typical ZZ Ceti stars, which exhibit non-radial g-mode pulsations driven by a hydrogen partial ionization zone. Successfully unraveling both the total mass and core composition of GD 518 provides a unique opportunity to investigate intermediate-mass stellar evolution, and can possibly place an upper limit to the mass of a carbon-oxygen-core WD, which in turn constrains SNe Ia progenitor systems.
description: 5 pages, 3 figures, Astrophysical Journal Letters, 771, L2 (2013)
Sonnenfleckenzeichnung Nr. 83.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 15.04.1991, 07:30, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
title: Der Feldzug des Germanicus an der Weser im Jahre 16. nach Chr. Geb, von E. v. Wietersheim, Leipzig 1850
Creators: name: Freudenberg, Johannes
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Der Feldzug des Germanicus an der Weser im Jahre 16. nach Chr. Geb, von E. v. Wietersheim. Mit einer Karte. Leipzig, Wiedmann'sche Buchhandlung. 1850.
VLT/VIMOS Observations of an Occulting Galaxy Pair: Redshifts and Effective Extinction Curve
Creators: name: Holwerda, B. W.
name: Boker, T.
name: Dalcanton, J. J.
name: Keel, W. C.
name: de Jong, R. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present VLT/VIMOS IFU observations of an occulting galaxy pair previously discovered in HST observations. The foreground galaxy is a low-inclination spiral disk, which causes clear attenuation features seen against the bright bulge and disk of the background galaxy. We find redshifts of $z=0.064 \pm0.003$ and z=0.065 for the foreground and background galaxy respectively. This relatively small difference does not rule out gravitational interaction between the two galaxies. Emission line ratios point to a star-forming, not AGN-dominated foreground galaxy. We fit the Cardelli, Clayton & Mathis (CCM) extinction law to the spectra of individual fibres to derive slope ($R_V$) and normalization ($A_V$). The normalization agrees with the HST attenuation map and the slope is lower than the Milky Way relation ($R_V<3.1$), which is likely linked to the spatial sampling of the disk. We speculate that the values of $R_V$ point to either coherent ISM structures in the disk larger than usual ($\sim9$ kpc) or higher starting values of $R_V$, indicative of recent processing of the dust. The foreground galaxy is a low stellar mass spiral ($M_* \sim 3 \times 10^9 M_\odot$) with a high dust content ($M_{\rm dust} \sim 0.5 \times 10^6 M_\odot$). The dust disk geometry visible in the HST image would explain the observed SED properties of smaller galaxies: a lower mean dust temperature, a high dust-to-stellar mass ratio but relatively little optical attenuation. Ongoing efforts to find occulting pairs with a small foreground galaxies will show how common this geometry is.
description: 16 pages, 3 tables, 13 figures, accepted for publication in MNRAS
title: Das Herz des Marktes schlägt links
Creators: name: Ullrich, Wolfgang
Publisher: name: University Library Heidelberg
Year: 2016

description: kritische berichte - Zeitschrift für Kunst- und Kulturwissenschaften, Bd. 34, Nr. 3 (2006): krtische berichte, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Exact Partition Function Zeros of the Wako-Saito-Muñoz-Eaton Protein Model
Creators: name: Lee, Julian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: I compute exact partition function zeros of the Wako-Saito-Muñoz-Eaton model for various secondary structural elements and for two proteins, 1BBL and 1I6C, using both analytic and numerical methods. Two-state and barrierless downhill folding transitions can be distinguished by a gap in the distribution of zeros at the positive real axis.
description: 5 pages, 5 figures
title: Es ist nicht alles Gold oder Silber, was glänzt. Blicke in und über einen Musterkarton der „Vereinigten Leonischen Fabriken Nürnberg“ hinaus
Creators: name: Schindler, Thomas
Publisher: name: University Library Heidelberg
Year: 2016

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 49 (2016): KulturGut: aus der Forschung des Germanischen Nationalmuseums, Beginn und Erscheinungsfrequenz: Jahr: 2004
title: Neue Bücher aus dem Germanischen Nationalmuseum
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2016

description: KulturGut : aus der Forschung des Germanischen Nationalmuseums, Nr. 49 (2016): KulturGut: aus der Forschung des Germanischen Nationalmuseums, Beginn und Erscheinungsfrequenz: Jahr: 2004
Power-Law and Logarithmic Entropy-Corrected Ricci Viscous Dark Energy and Dynamics of Scalar Fields
Creators: name: Pasqua, Antonio
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this work, I consider the logarithmic-corrected and the power-law corrected versions of the holographic dark energy (HDE) model in the non-flat FRW universe filled with a viscous Dark Energy (DE) interacting with Dark Matter (DM). We propose to replace the infra-red cut-off with the inverse of the Ricci scalar curvature $R$. I obtain the equation of state (EoS) parameter $ω_Λ$, the deceleration parameter $q$ and the evolution of energy density parameter $Ω_D'$ in the presence of interaction between DE and DM for both corrections. I study the correspondence of the logarithmic entropy corrected Ricci Dark Dnergy (LECRDE) and power-law entropy corrected Ricci Dark Energy (PLECRDE) models with the the Modified Chaplygin Gas (MCG) and some scalar fields including tachyon, K-essence, dilaton and quintessence. I also make comparisons with previous results.
Sonnenfleckenzeichnung Nr. 172.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 24.07.1991, 09:30, erstellt von Andrea Manna, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 101.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.05.1991, 08:00, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Characterization of nanoparticle mediated laser transfection by femtosecond laser pulses for applications in molecular medicine
Creators: name: Schomaker, Markus
name: Heinemann, Dag
name: Kalies, Stefan
name: Willenbrock, Saskia
name: Wagner, Siegfried
name: Nolte, Ingo
name: Ripken, Tammo
name: Escobar, Hugo Murua
name: Meyer, Heiko
name: Heisterkamp, Alexander
Publisher: name: London : Biomed Central Ltd
Year: 2015
Subjects: subject: laser transfection
subject: plasmonics
subject: nanoparticles
subject: permeabilization mechanisms
subject: sirna
subject: gene delivery
subject: gold nanoparticles
subject: selective nanophotothermolysis
subject: plasmonic nanobubbles
subject: mammalian-cells
subject: gene-transfer
subject: cancer
subject: optoporation
subject: nanomanipulations
subject: manipulation
subject: therapy
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Background: In molecular medicine, the manipulation of cells is prerequisite to evaluate genes as therapeutic targets or to transfect cells to develop cell therapeutic strategies. To achieve these purposes it is essential that given transfection techniques are capable of handling high cell numbers in reasonable time spans. To fulfill this demand, an alternative nanoparticle mediated laser transfection method is presented herein. The fs-laser excitation of cell-adhered gold nanoparticles evokes localized membrane permeabilization and enables an inflow of extracellular molecules into cells. Results: The parameters for an efficient and gentle cell manipulation are evaluated in detail. Efficiencies of 90% with a cell viability of 93% were achieved for siRNA transfection. The proof for a molecular medical approach is demonstrated by highly efficient knock down of the oncogene HMGA2 in a rapidly proliferating prostate carcinoma in vitro model using siRNA. Additionally, investigations concerning the initial perforation mechanism are conducted. Next to theoretical simulations, the laser induced effects are experimentally investigated by spectrometric and microscopic analysis. The results indicate that near field effects are the initial mechanism of membrane permeabilization. Conclusion: This methodical approach combined with an automated setup, allows a high throughput targeting of several 100,000 cells within seconds, providing an excellent tool for in vitro applications in molecular medicine. NIR fs lasers are characterized by specific advantages when compared to lasers employing longer (ps/ns) pulses in the visible regime. The NIR fs pulses generate low thermal impact while allowing high penetration depths into tissue. Therefore fs lasers could be used for prospective in vivo applications.
Sonnenfleckenzeichnung Nr. 33.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 12.02.1991, 08:15, erstellt von Michele Bianda, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Durham Neighborhood Housing Services: Reversing Neighborhood Decline
Creators: name: Glass, Brent
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1982

description: Since 1980, Durham Neighborhood Housing Services (NHS) has offered free financial counseling and technical assistance to all property owners in the Old North Durham neighborhood (see map below). The program's goal is to reverse neighborhood decline by bringing together the resources that contribute to reinvestment and growth: residents, business, and government. A volunteer board of directors that represents each of these elements runs the organization with a paid staff of three professionals carrying out the daily delivery of services. In the four cases described in this article, Durham NHS served as a bridge between the private and public sectors to achieve the renovation of under-maintained property. The improvement of each of these properties directly led to additional reinvestment in adjacent properties in the neighborhood.
Sonnenfleckenzeichnung Nr. 124.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 01.06.1991, 08:30, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Early Warning and Plant Closings in Chicago in the 1980s
Creators: name: O’Neill-Kohl, Sara
name: Clavel, Pierre
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: During the 1970s and 1980s, plant shutdowns across the nation provoked a grassroots response, spearheaded by community and labor groups. This paper explores the history of one such response in Chicago: early warning systems, which were independent research networks that combined public and private information with worker knowledge in order to provide advance notice of a possible closing. Using primary sources, interviews with activists, and economic and political analysis of the time, the paper looks at the relationship between participating groups as well as the catalytic role played by the progressive Harold Washington mayoral administration. The local capacity generated during this time is viewed in the context of lessons for the current period of economic restructuring.
title: Nachlese zum Aktuellen Thema der Arch.Inf. 9 Heft 2, 1986. Erhaltung: Mit einem Bein - oder allen Vieren - im Sumpf. Eine spezifische Art des Sterbens und archäologischen Überlebens eiszeitlicher und holozäner Großtiere
Creators: name: Löhr, Hartwig
Publisher: name: University Library Heidelberg
Year: 2016

description: [nicht vorhanden / not available]
Heteronuclear Limit of Strong-Field Ionization: Fragmentation of HeH+ by Intense Ultrashort Laser Pulses
Creators: name: Wustelt, Philipp
name: Oppermann, Florian
name: Yue, Lun
name: Möller, Max
name: Stöhlker, Thomas
name: Lein, Manfred
name: Gräfe, Stefanie
name: Paulus, Gerhard G.
name: Sayler, A. Max
Publisher: name: College Park, MD : American Physical Society
Year: 2018
Subjects: subject: Bond length
subject: Impact ionization
subject: Ion beams
subject: Laser theory
subject: Molecular dynamics
subject: Molecules
subject: Ultrashort pulses
subject: Asymmetric molecules
subject: Electronic excitation
subject: Fragmentation dynamics
subject: Fragmentation pathways
subject: Single ionization
subject: Strong field ionization
subject: Symmetric systems
subject: Vibrational excitation
subject: Laser excitation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The laser-induced fragmentation dynamics of this most fundamental polar molecule HeH+ are measured using an ion beam of helium hydride and an isotopologue at various wavelengths and intensities. In contrast to the prevailing interpretation of strong-field fragmentation, in which stretching of the molecule results primarily from laser-induced electronic excitation, experiment and theory for nonionizing dissociation, single ionization, and double ionization both show that the direct vibrational excitation plays the decisive role here. We are able to reconstruct fragmentation pathways and determine the times at which each ionization step occurs as well as the bond length evolution before the electron removal. The dynamics of this extremely asymmetric molecule contrast the well-known symmetric systems leading to a more general picture of strong-field molecular dynamics and facilitating interpolation to systems between the two extreme cases.
Sonnenfleckenzeichnung Nr. 55.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 13.03.1991, 08:15, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Quantum law of rare events for systems with Bose-Einstein statistics
Creators: name: Sokolovski, Dmitri
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In classical physics the joint probability of a number of individually rare independent events is given by the Poisson distribution. It describes, for example, unidirectional transfer of population between the densely and sparsely populated states of a classical two-state system. We derive a quantum version of the law for a large number of non-interacting systems (particles) obeying Bose-Einstein statistics. The classical low is significantly modified by quantum interference, which allows, among other effects, for the counter flow of particles back into the densely populated state. Suggested observation of this classically forbidden counter flow effect can be achieved with modern laser-based techniques used for manipulating and trapping of cold atoms.
Sonnenfleckenzeichnung Nr. 153.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 05.07.1991, 07:30, erstellt von Sergio Cortesi, Sonnenobservatorium Specola Solare Ticinese in Locarno
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1991

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
A Planner's Role in Preservation (Commentary)
Creators: name: Howard, J. Myrick
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1989

description: When I first started my job in 1978 as Executive Director of the Historic Preservation Foundation of North Carolina, as a recent graduate of the Law and Planning joint degree program at Chapel Hill, I constantly had people respond to me with either, "I was expecting someone much older" or, "what's a nice young man like you doing in a field like historic preservation?" What they were really expecting was the proverbial blue-haired little old lady with tennis shoes - or at least a gaunt pale man who looked like he wandered out of the library stacks. A sterling pedigree would be a given. Degrees in city and regional planning and law seemed strange. More than a decade later, I better understand the comments. I realize that there is marked contrast between being involved in history and in historic preservation. The people are different, the goals are different, and the perspective is decidedly different. And yet, many people don't recognize or understand the distinction - sometimes, even, professionals in the field.