cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sulfur and zinc abundances of red giant stars
Creators: name: Takeda, Yoichi
name: Omiya, Masashi
name: Harakawa, Hiroki
name: Sato, Bun'ei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Sulfur and zinc are chemically volatile elements, which play significant roles as depletion-free tracers in studying galactic chemical evolution. However, regarding red giants having evolved off the main sequence, reliable abundance determinations of S and Zn seem to be difficult despite that a few studies have been reported so far. Given this situation, we tried to establish the abundances of these elements for an extensive sample of 239 field GK giants (-0.8 < [Fe/H] < +0.2), by applying the spectrum-fitting technique to S I 8694-5, S I 6757, and Zn I 6362 lines and by taking into account the non-LTE effect. Besides, similar abundance analysis was done for 160 FGK dwarfs to be used for comparison. The non-LTE corrections for the S and Zn abundances derived from these lines turned out < 0.1(-0.2) dex for most cases and not very significant. It revealed that the S I 6757 feature is more reliable as an abundance indicator than S I 8694-5 for the case of red giants, because the latter suffers blending of unidentified lines. The finally resulting [S/Fe]-[Fe/H] and [Zn/Fe]-[Fe/H] relations for GK giants were confirmed to be in good agreement with those for FGK dwarfs, indicating that S and Zn abundances of red giants are reliably determinable from the S I 6757 and Zn I 6362 lines. Accordingly, not only main-sequence stars but also evolved red giant stars are usable for tracing the chemical evolution history of S and Zn in the regime of disk metallicity by using these lines.
description: 20 pages, 8 figures, 3 tables (along with 2 electronic data tables), accepted for publication in Publ. Astron. Soc. Japan
Hyper-Bonds – Applications and Challenges
Creators: name: Bruns, Wilhelm
Publisher: name: Universität Bremen
Year: 2004
Subjects: subject: Mensch-Technik-Interaktion
subject: 0

description: A new concept of mixing distributed real and virtual worlds through a unified human-machine interface will be introduced, some first realizations and a focus on resulting challenges of control-theory and modeling are presented.
Andrena subopaca Nylander 1848
Creators: name: Pauly, Alain
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Andrena
Andrena subopaca

description: Andrena subopaca Nylander, 1848
 7.V.1979, 1♂, boulaie, Vaccinium myrtillus.
description: Published as part of Pauly, Alain, 2018, Les abeilles sauvages de la lande de Streupas (Hymenoptera: Apoidea), pp. 1-36 in Belgian Journal of Entomology 60 on page 14, DOI: 10.5281/zenodo.13619251
Wissenschaftsgenese und Wissenschaftskonzepte der informatischen Disziplin Computerarchitektur: Modelle der Artefaktstruktur, des Designraums und der Designkonflikte. Bericht des Theorieprojektes
Creators: name: Hellige, Hans Dieter
Publisher: name: Universität Bremen
Year: 2002
Subjects: subject: Informatikgeschichte
subject: 0

description: Bislang kann von einer Geschichte der Informatik noch keine Rede sein, sondern bestenfalls von Geschichten der Informatik. Der Plural verweist dabei zum einem auf die vielfach nur in Form von Geschichtserzählungen beteiligter Pioniere bestehenden Darstellungen. Zum anderen ist er Ausdruck der noch immer nicht zum Abschluß gekommenen Disziplinwerdung des Faches wie des unfertigen Standes der wissenschafts- und technikhistorischen Aufarbeitung, die eine Gesamtdarstellung der Geschichte des Fachs noch nicht zulassen.
Photometric Calibration of the [$α$/Fe] Element: I. Calibration with UBV Photometry
Creators: name: Karaali, S.
name: Gokce, E. Yaz
name: Bilir, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the calibration of the [$α$/Fe] element in terms of the ultra-violet excess for 469 dwarf stars with $0.325
description: 16 pages, 5 figures and 6 tables, accepted for publication in Astrophysics and Space Science
An analysis of spatiotemporal localized solutions in the variable coefficients (3+1)-dimensional nonlinear Schrödinger equation with six different forms of dispersion parameters
Creators: name: Manikandan, K.
name: Senthilvelan, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We construct spatiotemporal localized envelope solutions of a (3+1)-dimensional nonlinear Schrödinger equation with varying coefficients such as dispersion, nonlinearity and gain parameters through similarity transformation technique. The obtained localized rational solutions can serve as prototypes of rogue waves in different branches of science. We investigate the characteristics of constructed localized solutions in detail when it propagates through six different dispersion profiles, namely constant, linear, Gaussian, hyperbolic, logarithm and exponential. We also obtain expressions for the hump and valleys of rogue wave intensity profiles for these six dispersion profiles and study the trajectory of it in each case. Further, we analyze how the intensity of another localized solution, namely breather, changes when it propagates through the aforementioned six dispersion profiles. Our studies reveal that these localized solutions co-exist with the collapsing solutions which are already found in the (3+1)-dimensional nonlinear Schrödinger equation. The obtained results will help to understand the corresponding localized wave phenomena in related fields.
description: 32 pages, 17 figures, Accepted for publication in Chaos
Infinity in string cosmology: A review through open problems
Creators: name: Antoniadis, Ignatios
name: Cotsakis, Spiros
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We review recent developments in the field of string cosmology with particular emphasis on open problems having to do mainly with geometric asymptotics and singularities. We discuss outstanding issues in a variety of currently popular themes, such as tree-level string cosmology asymptotics, higher-order string correction effects, M-theory cosmology, braneworlds, and finally ambient cosmology.
description: 37 pages, to appear in the IJMPD, v2: matches published version
Corporate branding : different stakeholder perspectives and performance implications
Creators: name: Anisimova., Tatiana Anatolevna
Publisher: name: Monash University
Year: 2021

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.
Bi-directional Mixed Reality Electric Circuit - Virtual Equivalence
Creators: name: Yoo, Yong-Ho
Publisher: name: Universität Bremen
Year: 2004
Subjects: subject: Mensch-Technik-Interaktion
subject: 0

description: The aim of this paper is to introduce Virtual Equivalence, a method to merge real circuits and virtual circuits. Also it is a new method to implement the Hyper-Bond (Bruns, 2001) for voltage and current flow. The electric power (current × voltage) interactions, at which the real electric components can be bi-directionally connected with the virtual electric components, using only one interface port between the real and virtual environment, are presented. With detailed implementations, it will be shown that this method can be applied in various mixed reality models with electric circuits, from learning environments of physics laboratory at school to simulation systems used in industry.
Akzeptanz und Wirkung der Vor-Ort-Energiesparberatung von Mieter_innen : Evaluation des „EnergieSparChecks für GEWOBA-Mieterhaushalte“
Creators: name: Fingerhut, Yann-Ph.
name: Stührmann, Sönke
name: Weller, Ines
Publisher: name: Universität Bremen
Year: 2015
Subjects: subject: Energieeinsparung
subject: Stromverbrauch
subject: Wärmeverbrauch
subject: 320

description: In diesem artec-paper werden Methodik und Ergebnisse der wissenschaftlichen Begleitfor-schung des „EnergieSparCheck für Mieterhaushalte“ vorgestellt, die erzielten Wirkungen dieses Beratungsansatzes diskutiert sowie Empfehlungen zu seiner Weiterentwicklung präsentiert.
Aboveground biomass mapping in French Guiana by combining remote sensing, forest inventories and environmental data
Creators: name: Fayad, Ibrahim
name: Baghdadi, Nicolas
name: Guitet, Stéphane
name: Bailly, Jean-Stéphane
name: Hérault, Bruno
name: Gond, Valéry
name: Hajj, Mahmoud
name: Minh, Dinh Ho Tong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Mapping forest aboveground biomass (AGB) has become an important task, particularly for the reporting of carbon stocks and changes. AGB can be mapped using synthetic aperture radar data (SAR) or passive optical data. However, these data are insensitive to high AGB levels (\textgreater{}150 Mg/ha, and \textgreater{}300 Mg/ha for P-band), which are commonly found in tropical forests. Studies have mapped the rough variations in AGB by combining optical and environmental data at regional and global scales. Nevertheless, these maps cannot represent local variations in AGB in tropical forests. In this paper, we hypothesize that the problem of misrepresenting local variations in AGB and AGB estimation with good precision occurs because of both methodological limits (signal saturation or dilution bias) and a lack of adequate calibration data in this range of AGB values. We test this hypothesis by developing a calibrated regression model to predict variations in high AGB values (mean \textgreater{}300 Mg/ha) in French Guiana by a methodological approach for spatial extrapolation with data from the optical geoscience laser altimeter system (GLAS), forest inventories, radar, optics, and environmental variables for spatial inter-and extrapolation. Given their higher point count, GLAS data allow a wider coverage of AGB values. We find that the metrics from GLAS footprints are correlated with field AGB estimations (R 2 =0.54, RMSE=48.3 Mg/ha) with no bias for high values. First, predictive models, including remote-sensing, environmental variables and spatial correlation functions, allow us to obtain "wall-to-wall" AGB maps over French Guiana with an RMSE for the in situ AGB estimates of ~51 Mg/ha and R${}^2$=0.48 at a 1-km grid size. We conclude that a calibrated regression model based on GLAS with dependent environmental data can produce good AGB predictions even for high AGB values if the calibration data fit the AGB range. We also demonstrate that small temporal and spatial mismatches between field data and GLAS footprints are not a problem for regional and global calibrated regression models because field data aim to predict large and deep tendencies in AGB variations from environmental gradients and do not aim to represent high but stochastic and temporally limited variations from forest dynamics. Thus, we advocate including a greater variety of data, even if less precise and shifted, to better represent high AGB values in global models and to improve the fitting of these models for high values.
Brownian duet: A novel tale of thermodynamic efficiency
Creators: name: Proesmans, Karel
name: Dreher, Yannik
name: Gavrilov, Momčilo
name: Bechhoefer, John
name: Broeck, Christian Van den
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate analytically the stochastic thermodynamic properties of an isothermal Brownian engine driven by a duo of time-periodic forces, including its Onsager coefficients, the stochastic work of each force, and the corresponding stochastic entropy production. We verify the relations between different operational regimes, maximum power, maximum efficiency and minimum dissipation, and reproduce the signature features of the stochastic efficiency. All these results are experimentally tested without adjustable parameters on a colloidal system.
description: 13 pages, 6 figures
„Umweltsünder“ oder „Vorreiter“? Über Bewertungs- und Motivationsprobleme im Umweltmanagement an Hochschulen
Creators: name: Bogun, Roland
Publisher: name: Universität Bremen
Year: 2004
Subjects: subject: Umweltmanagement
subject: Hochschule
subject: 320

description: Auch die Hochschulen sehen sich zunehmend mit der Erwartung gesellschaftlicher Anspruchsgruppen konfrontiert, einen Beitrag zur Bewältigung der "ökologischen Krise“ zu leisten. Im praktischen Umgang mit diesen neuen Anforderungen spielt die Einführung von Umweltmanagementsystemen eine zentrale Rolle (1). Im vorliegenden Beitrag wird angesichts der offenkundig bestehenden Schwierigkeiten auf dem Weg der "Ökologisierung“ der Hochschulen die These entwickelt, dass diese in besonderer Weise mit Problemen konfrontiert sind, die auch allgemein als zentrale Kernprobleme des Umweltmanagements gelten (2). Diese beziehen sich auf die Einschätzung und Bewertung der ökologischen Relevanz der Hochschulen - im Sinne einer sachlich begründeten und sozial akzeptierten gemeinsamen Problemdefinition - sowie die Beteiligung und Motivation der Hochschulmitglieder. Sie lassen sich zum einen auf die ökologische Ausgangslage und zum anderen auf die besonderen Merkmale der "Organisation“ Hochschule (3) zurückführen. Im 4. Abschnitt wird die einschlägige Literatur auf die sich daraus ergebenden praktischen Probleme und empirischen Fragestellungen bezogen, woraus im 5. Abschnitt ein abschließendes Fazit gezogen wird.
The acceptance of information technology in Saudi Arabia
Creators: name: Alhussein., Abdulmajeed A.
Publisher: name: Monash University
Year: 2021

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.
Andrena vaga Panzer 1799
Creators: name: Pauly, Alain
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Andrena
Andrena vaga

description: Andrena vaga Panzer, 1799
21.IV.2014, 4♀, lande étrépée, nid dans le sol.
description: Published as part of Pauly, Alain, 2018, Les abeilles sauvages de la lande de Streupas (Hymenoptera: Apoidea), pp. 1-36 in Belgian Journal of Entomology 60 on page 14, DOI: 10.5281/zenodo.13619251
Robust Relativistic Bit Commitment
Creators: name: Chakraborty, Kaushik
name: Chailloux, André
name: Leverrier, Anthony
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Relativistic cryptography exploits the fact that no information can travel faster than the speed of light in order to obtain security guarantees that cannot be achieved from the laws of quantum mechanics alone. Recently, Lunghi et al [Phys. Rev. Lett. 2015] presented a bit commitment scheme where each party uses two agents that exchange classical information in a synchronized fashion, and that is both hiding and binding. A caveat is that the commitment time is intrinsically limited by the spatial configuration of the players, and increasing this time requires the agents to exchange messages during the whole duration of the protocol. While such a solution remains computationally attractive, its practicality is severely limited in realistic settings since all communication must remain perfectly synchronized at all times. In this work, we introduce a robust protocol for relativistic bit commitment that tolerates failures of the classical communication network. This is done by adding a third agent to both parties. Our scheme provides a quadratic improvement in terms of expected sustain time compared to the original protocol, while retaining the same level of security.
description: 22 pages, 1 figure
Recent Issues on Transnational Entrepreneurship
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Bremen
Year: 2018
Subjects: subject: Entrepreneurship
subject: 330

description: The following research papers have been developed with advanced students in a research seminar in 2017 at University of Bremen, Germany. The student teams developed condensed project reports of their research activities that transformed in the papers following up this editorial. One by one, the papers to some extent tie in the above-mentioned three sets of questions and provide first answers. Mane Narimanyan and Tatevik Narimanyan address the motivational foundations of becoming a diaspora entrepreneur. A core ambition of the paper is to connect findings that, to date, relate predominantly to particular types of diaspora entrepreneurship. For an overview and a categorization, the paper identifies four different types of diaspora entrepreneurs. Another issue of the paper is the attempt to depart from a solely qualitative view on motivation and to take quantitative measurement aspects into account. In this vein, numeric relations between motivational factors were introduced. Nicoletta Capriuolo, Alessandro Cuman, Ambra Evandri, Federico Gianni and Arianna Saturni research on entrepreneurship in ethnic enclaves. Based on a literature-based content analysis, the authors develop a framework of determinants of self-employment and a model identifying performance indicators of ethnic ventures. The paper challenges traditional views od ethnic enclaves by shedding light on more recent settings with ethnic enclaves as a cohesive social body beyond solely geographical aspects. Lisa Ahuis, Myra Louise Grewe, Franziska Otten and Helena Rolf both summarize and analyze the state of the art in returnee entrepreneurship. As the field of returnee entrepreneurship is wide open, the authors frame their consideration by dwelling on the following research questions: which aspects of returnee entrepreneurship have been studied so far and why? Moreover, they ask about the gaps of previous research. For a first access to available research results, the authors focus their paper on a limited set of criteria to locate the nature of literature contributions. This set considers discipline, methodology, country of origin and industry background of the relevant articles and provides readers with a first orientation as to this interesting and developing field of research.
Monteswitch: A package for evaluating solid-solid free energy differences via lattice-switch Monte Carlo
Creators: name: Underwood, T. L.
name: Ackland, G. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Lattice-switch Monte Carlo (LSMC) is a method for evaluating the free energy between two given solid phases. LSMC is a general method, being applicable to a wide range of problems and interatomic potentials. Furthermore it is extremely efficient, ostensibly more efficient than other existing general methods. Here we introduce a package, monteswitch, which can be used to perform LSMC simulations. The package can be used to evaluate the free energy differences between pairs of solid phases, including multicomponent phases, via LSMC for atomic (i.e., non-molecular) systems in the NVT and NPT ensembles. It could also be used to evaluate the free energy cost associated with interfaces and defects. Regarding interatomic potentials, monteswitch currently supports various commonly-used pair potentials, including the hard-sphere, Lennard-Jones, and Morse potentials, as well as the embedded atom model. However the main strength of the package is its versatility: it is designed so that users can easily implement their own potentials.
Die Geschichte des Internets als Lernprozess
Creators: name: Hellige, Hans Dieter
Publisher: name: Universität Bremen
Year: 2003
Subjects: subject: Internet
subject: Geschichte
subject: 0

description: Der Beitrag reflektiert die bisherigen Geschichtsbetrachtungen von Pionieren und Historikern des Internet. Er möchte zeigen, dass die bislang dominierende heroische Sichtweise die eigentlich interessierenden Entwicklungen des Internets von einer unvollständigen Systemlösung zu einem massentauglichen Informations- und Kommunikationsmedium ausblendet. Am Beispiel des Wandels der Leitbilder und Nutzungsszenarien der engeren Internet-Community und der Prägungswirkungen der Akteurskonstellationen auf die Netzwerkarchitektur werden neuere Ansätze der historischen Technikgeneseforschung auf die Internet- Entwicklung angewandt.
Influence of incoherent scattering on stochastic deflection of high-energy negative particle beams in bent crystals
Creators: name: Kirillin, I. V.
name: Shul'ga, N. F.
name: Bandiera, L.
name: Guidi, V.
name: Mazzolari, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: An investigation on stochastic deflection of high-energy negatively charged particles in a bent crystal was carried out. On the basis of analytical calculation and numerical simulation it was shown that it exists a maximum angle at which most of the beam is deflected. The existence of a maximum, which is taken in the correspondence of the optimal radius of curvature, is a novelty with respect to the case of positively charged particles, for which the deflection angle can be freely increased by increasing the crystal length. This difference has to be ascribed to the stronger contribution of incoherent scattering affecting the dynamics of negative particles that move closer to atomic nuclei and electrons. We therefore identified the ideal parameters for the exploitation of axial confinement for negatively charged particle beam manipulation in future high-energy accelerators, e.g., ILC or muon colliders.
Probleme und Chancen der Benutzerschnittstellen bei Wearable Computern
Creators: name: Rachuy, Carsten
name: Warden, Tobias
Publisher: name: Universität Bremen
Year: 2004
Subjects: subject: Wearable Computer
subject: Bedienschnittstelle
subject: Benutzerschnittstelle
subject: 0

description: Das Thema mobiles Arbeiten ist in letzter Zeit durch die Entwicklung immer besserer mobiler Rechnersysteme wie Laptops und PDAs stark in den Vordergrund getreten. Diese Ausarbeitung soll sich mit einem anderen Bereich, nämlich dem der ultra-mobilen Geräte, den tragbaren, ”wearable” Computern befassen und konzentriert sich auf die Probleme hinsichtlich der Bedienschnittstellen für diese Systeme. Dabei beschränkt sich dieser Text auf den Bereich Hardware. Probleme betreffend der Software bzw. der GUI-Ergonomie wurden von uns explizit nicht betrachtet.
Internationale Arbeitsregulierung in Zeiten der Globalisierung. Politikveränderungen der Internationalen Arbeitsorganisation in der Perspektive organisatorischen Lernens
Creators: name: Dirks, Jan
name: Liese, Andrea
name: Senghaas-Knobloch, Eva
Publisher: name: Universität Bremen
Year: 2002
Subjects: subject: Internationale Arbeitsorganisation (IAO)
subject: Arbeitspolitik
subject: Globalisierung
subject: 320

description: Uns interessiert die Art und Weise, wie sich die IAO neuer Herausforderungen durch eine sich stetig verändernde Umwelt, insbesondere aufgrund neuer globaler Strukturen annimmt. Wir beziehen uns dabei auf die IAO als eine internationale Organisation mit spezifischem Auftrag, die sich gleichwohl mit grundlegenden Problemen jedweder Organisation auseinandersetzen muss und nutzen eine Heuristik organisatorischen Lernens, in deren Perspektive wir Veränderungen in ihren drei Tätigkeitssäulen Normensetzung und –implementation, Forschung und Aufklärung sowie technische Zusammenarbeit untersuchen. Veränderungen können sich auf die IAO als ganze Organisation beziehen, aber auch auf spezifische Problem- und Politikfelder. Unsere Untersuchung konzentriert sich auf Veränderungen in der Gesamtstrategie der IAO und auf zwei spezifische IAO-Politikfelder Kinderarbeit und Handelsschifffahrt, die von den globalen neuen Strukturen und Tendenzen besonders betroffen werden.
The effect of rotation on oscillatory double-diffusive convection (semiconvection)
Creators: name: Moll, Ryan
name: Garaud, Pascale
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Oscillatory double-diffusive convection (ODDC, more traditionally called semiconvection) is a form of linear double-diffusive instability that occurs in fluids that are unstably stratified in temperature (Schwarzschild unstable), but stably stratified in chemical composition (Ledoux stable). This scenario is thought to be quite common in the interiors of stars and giant planets, and understanding the transport of heat and chemical species by ODDC is of great importance to stellar and planetary evolution models. Fluids unstable to ODDC have a tendency to form convective thermo-compositional layers which significantly enhance the fluxes of temperature and chemical composition compared with microscopic diffusion. Although a number of recent studies have focused on studying properties of both layered and non-layered ODDC, few have addressed how additional physical processes such as global rotation affect its dynamics. In this work we study first how rotation affects the linear stability properties of rotating ODDC. Using direct numerical simulations we then analyze the effect of rotation on properties of layered and non-layered ODDC, and study how the angle of the rotation axis with respect to the direction of gravity affects layering. We find that rotating systems can be broadly grouped into two categories, based on the strength of rotation. Qualitative behavior in the more weakly rotating group is similar to non-rotating ODDC, but strongly rotating systems become dominated by vortices that are invariant in the direction of the rotation vector and strongly influence transport. We find that whenever layers form, rotation always acts to reduce thermal and compositional transport.
Andrena ventralis Imhoff 1832
Creators: name: Pauly, Alain
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Andrena
Andrena ventralis

description: Andrena ventralis Imhoff,1832
21.IV.2014, 2♀, au sol.
description: Published as part of Pauly, Alain, 2018, Les abeilles sauvages de la lande de Streupas (Hymenoptera: Apoidea), pp. 1-36 in Belgian Journal of Entomology 60 on page 14, DOI: 10.5281/zenodo.13619251
Nachhaltiger Konsum: Aufgabe der „Neuen Verbraucherpolitik?“
Creators: name: Reisch, Lucia
Publisher: name: Universität Bremen
Year: 2004
Subjects: subject: Verbraucherpolitik
subject: Konsumverhalten
subject: Nachhaltigkeit
subject: 320

description: Der Beitrag beschäftigt sich mit neueren Entwicklungen im Politikfeld Verbraucherpolitik. Es wird der Frage nachgegangen, inwiefern es sich bei der so genannten „Neuen Verbraucherpolitik“ inhaltlich materiell und institutionell-formell um einen Neubeginn handelt. Das „Neue“, so wird argumentiert, ergibt sich zum einen aus neuen Herausforderungen (Globalisierung, Europäisierung, Aufgabe der Nachhaltigen Entwicklung u.a.), zum anderen aus einem veränderten Selbstverständnis der Politik als aktive wirtschafts- und lebensqualitätsfördernde Querschnittspolitik. Die Förderung nachhaltiger Konsummuster als verbraucherpolitisches Ziel wird diskutiert.
Work/life benefits : management and employee perspectives
Creators: name: Abbott., Jacqueline Faye
Publisher: name: Monash University
Year: 2021

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.
ОСОБЕННОСТИ ОЦЕНКИ ИМУЩЕСТВЕННОГО КОМПЛЕКСА АГРОПРОМЫШЛЕННЫХ ФОРМИРОВАНИЙ
Creators: name: Л. З. Абдокова
name: Р. М. Никаева
Publisher: name: Естественно-гуманитарные исследования
Year: 2020
Subjects: имущественный комплекс
оборотные активы
внеоборотные активы
эффективность
ликвидность
рентабельность
сельское хозяйство
финансовая отчетность
платежеспособность.

description: На сегодняшний день сельское хозяйство является одним наиболее важных и значимых направлений в развитии национальной экономики. Неоднозначность термина имущественного комплекса затрудняет подходы к трактовке данного понятия с учетом особенностей агропромышленного производства, при этом также недостаточно разработаны и теоретические аспекты по количественной оценке имущественного комплекса предприятий данного сектора. Проблема выбора оценочных показателей, определение их допустимых значений, системы аналитического обеспечения оценки имущества предприятия, учитывающей специфику сельскохозяйственного производства, является весьма актуальной на сегодняшний день. В статье рассмотрены особенности оценки имущественного комплекса предприятия, проведен анализ состава имущества предприятия с точки зрения эффективности его использования, а также источников его формирования, выявлен имущественный потенциала предприятия.
Stadtsauberkeit und Müllmanagement in Bremen
Creators: name: Lange, Hellmuth
name: Rau, Andreas
Publisher: name: Universität Bremen
Year: 2002
Subjects: subject: Abfallwirtschaft
subject: Abfallentsorgung
subject: Bremen
subject: 320

description: Im Rahmen der vorliegenden empirischen Untersuchung wurden zwei verschiedene Verfahren angewendet. Einerseits wurde eine statistische Befragung mit Bremer Bürgerinnen und Bürgern durchgeführt. Andererseits wurden weitere Quellen durch die Durchführung qualitativer Experteninterviews sowie die laufende Auswertung der lokalen Presse zum Thema genutzt.
РАЗВИТИЕ ФИНАНСОВЫХ ТЕХНОЛОГИЙ В КОНТЕКСТЕ ЦИФРОВИЗАЦИИ ЭКОНОМИЧЕСКИХ ПРОЦЕССОВ
Creators: name: Е. В. Абызова
name: М. И. Ленкова
name: В. Д. Сотник
Publisher: name: Естественно-гуманитарные исследования
Year: 2020
Subjects: цифровизация
цифровая экономика
электронное правительство
финансовые технологии
блокчейн
биткойн

description: В статье рассмотрена терминология в области цифровой экономики; выявлены тенденции и обоснована необходимость оцифровки экономических процессов на основе использования новых финансовых технологий; раскрыты информативные характеристики финансовых технологий, перспективных для России. Цифровизация социально-экономических факторов меняет формат таких систем, как здравоохранение, образование и государственное управление, цифровой формат может значительно улучшить качественные показатели различных видов продукции, технологий, оборудования, хранения и продаж товаров и услуг. В широком смысле экономическая цифровизация рассматривается как «цифровое правительство». В узком смысле, экономическая цифровизация определяется как часть экономики, которая включает разработку и производство информационных и компьютерных технологий, помимо этого: тиражирование компьютерной техники, мобильной связи, Интернет и других средств связи. В статье определены задачи по развитию внутреннего рынка новых финансовых технологий.
Stability Analysis of C-band 500-kW Klystron with Multi-cell Output cavity
Creators: name: Hwang, Jihyun
name: Park, Sung-Ju
name: Namkung, Won
name: Cho, Moohyun
Publisher: name: arXiv
Year: 2016
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A progogype 5-GHz 500-kW CW klystron (model E3762 provided by Toshiba Electron Tubes & Devices Co. Ltd.) has been operating as the RF source for the lower hybrid current drive (LHCD) system in the KSTAR tokamak. In order to investigate how the efficiency of the 5-GHz 500-kW CW klystron prototype could be enhanced, the cavity design study is being carried out with simulation code based on the main klystron operation parameters. This is being done by simulating klystron performances for various cavity parameters including the number of cavities, inter-cavity distance, and cavity tuning frequencies. The simulation has been done with the FCI (field charge interaction) code aided by a matlab script for scanning input parameters. Initial set of scan parameters was obtained by benchmarking the E3762 klystron. It was possible to obtain optimized design parameters with better efficiency for a cavity system adopting a multi-cell output cavity. However, the multi-cell output cavity is prone to produce a self-oscillation due to the prolonged (several half RF periods) beam-field interaction along its multiple gaps. We have checked the feasibility of the optimization by evaluating the stability of output cavity system. The stability is given by the ratio of a beam-loading conductance to the circuit conductance.
ОСОБЕННОСТИ СОЗДАНИЯ И РАЗВИТИЯ ПРОИЗВОДСТВЕННОЙ ИНФРАСТРУКТУРЫ РЕГИОНАЛЬНОГО ПРОМЫШЛЕННОГО КОМПЛЕКСА
Creators: name: Р. Р. Аванесова
name: И. Ш. Баснукаев
Publisher: name: Естественно-гуманитарные исследования
Year: 2020
Subjects: глобализация
возрастающая конкуренция
промышленный комплекс
регион
производственная инфраструктура
управление.

description: Необходимость незамедлительной модернизации российской экономики, выявления высокоэффективных факторов ее экономического роста объективно актуализируют значение услуг производственной инфраструктуры. И это естественно, ибо производственная инфраструктура является основополагающим условием конкурентоспособности промышленного производства, выступает в виде динамической системы, всецело зависящей от масштабов инвестиций, направляемых на ее модернизацию. Речь идет о том, что производственную инфраструктуру нельзя рассматривать лишь в качестве статистической величины, а как явление развивающееся. Такое положение подтверждает необходимость разработки и задействования комплекса эффективных мероприятий управленческого и институционального характера, сопряженных с построением концепции страте-гического управления инфраструктурным развитием России, ее субъектов и муниципалитетов, созданием и развитием государственных институтов регулирования и мониторинга производственной инфраструктуры, совершенствованием инструментариев государственно-частного партнерства, формулированием особых законов для регулирования производственной инфраструктуры как вида экономической деятельности, реализацией комплекса мероприятий господдержки малого бизнеса в отраслях производственной инфраструктуры. Однозначно, что такой подход позволит обеспечить надлежащим образом кардинальные экономические преобразования в этой сфере, развивать конкурентные отношения, разработать эффективные мероприятия по увеличению рентабельности, сформировать привлекательный инвестиционный климат, разработать и реализовать высокоэффективные инструменты роста капитализации объектов производственной инфраструктуры. Бесспорно, все вышеизложенное говорит об актуальности избранной нами темы исследования.
The government securities market during the economic transformation in China
Creators: name: Li., Fang
Publisher: name: Monash University
Year: 2021

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.
Existence theorem for homogeneous incompressible Navier-Stokes equation with variable rheology
Creators: name: Chupin, Laurent
name: Mathé, Jordane
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We look at a homogeneous incompressible fluid with a time and space variable rheology of Bingham type, which is governed by a coupling equation. Such a system is a simplified model for a gas-particle mixture that flows under the influence of gravity. The main application of this kind of model is pyroclastic flows in the context of volcanology. In order to prove long time existence of weak solutions, classical Galerkin approximation method coupled with a priori estimates allows us to partially solve the problem. A difficulty remains with the stress tensor, which must satisfy an implicit constitutive relation. Some numerical simulations of a flow of this type are given in the last section. These numerical experiments highlight the influence of the fluidization phenomenon in the flow.
description: European Journal of Mechanics - B/Fluids, Elsevier, 2016
РОЛЬ СТРАТЕГИЧЕСКОГО ПЛАНИРОВАНИЯ В РАЗВИТИИ ПРЕДПРИНИМАТЕЛЬСКОЙ ДЕЯТЕЛЬНОСТИ
Creators: name: А. А. Адаменко
name: Т. Е. Хорольская
name: Д. В. Петров
Publisher: name: Естественно-гуманитарные исследования
Year: 2020
Subjects: предпринимательство
предпринимательская деятельность
стратегическое планирование
конкурентоспособность

description: В настоящее время достаточно высокие требования предъявляются к конкурентоспособности экономических субъектов, однако зачастую руководителям предпринимательских структур не достает опыта оценки собственных бизнес-идей, им не хватает соответствующих компетенций, а именно навыков стратегического планирования. Стратегическое планирование преследует в качестве своей основной цели разработку и реализацию стратегических приоритетов развития экономического субъекта с учетом современных научных подходов и имеющихся прогрессивных технологий. Объектом стратегического планирования являются экономические системы, а предметная область стратегического планирования охватывает различные явления и события, происходящие как внутри, так и вовне объекта планирования. Процесс стратегического планирования выступает инструментом, позволяющим разрабатывать и принимать управленческие решения в долгосрочной перспективе, направленные на развитие экономического субъекта в условиях неопределенности и с учетом внешних факторов. В статье обозначен ряд преимуществ стратегического планирования для экономического субъекта, представлен процесс стратегического планирования, сформулирована роль такой процедуры стратегического планирования, как прогнозирование, а также описано значение стратегического контроля.
Unfassbare Technologien, internationale Innovationsverläufe und ausdifferenzierte Politikregime : Perspektiven nationaler Technologie- und Innovationspolitiken
Creators: name: Dolata, Ulrich
Publisher: name: Universität Bremen
Year: 2004
Subjects: subject: Technologiepolitik
subject: Innovationspolitik
subject: 320

description: Ich werde diesen Fragen im Folgenden in drei Schritten nachgehen: Im nächsten Abschnitt werde ich zunächst meinerseits einen Blick auf veränderte Rahmenbedingungen der Technikentwicklung und deren Rückwirkungen auf die staatliche Technologie- und Innovationspolitik werfen. Daran anschließend werde ich vor dem aktuellen Hintergrund der EU-Initiative zu einer Europe-an Research Area das Verhältnis von nationaler und europäischer Politik ausloten – und insbesondere der Frage nachgehen, ob im hier interessierenden Politikfeld eine signifikante Verlagerung von Kompetenzen und Ressourcen von der nationalen auf die europäische Ebene zu beobachten ist. Und schließlich werde ich am Beispiel der Bundesrepublik erörtern, mit welchen neuen Ansätzen nationale Technologie- und Innovationspolitiken auf die veränderten Rahmenbedingungen reagieren (können) und über welche Gestaltungsperspektive sie dabei verfügen.
ПРИМЕНЕНИЕ ИНФОРМАЦИОННЫХ ТЕХНОЛОГИЙ В МАРКЕТИНГОВЫХ КОММУНИКАЦИЯХ УЧРЕЖДЕНИЙ КУЛЬТУРЫ
Creators: name: М. Д. Азизян
name: А. Ю. Куликов
Publisher: name: Естественно-гуманитарные исследования
Year: 2020
Subjects: культура
информатизация
информационные технологии
маркетинг
реклама
PR.

description: Культурная сфера претерпевает серьёзные изменения в контексте развития информационного общества и современных технологий. Учреждения культуры сталкиваются с трудностями, потому что сегодня они вынуждены конкурировать за внимание аудитории с современной медиасредой. Под воздействием нововведений культурные учреждения должны адаптироваться под новые форматы взаимодействия с аудиторией. В условиях информатизации культурные учреждения становятся полноправными участниками рынка. Поэтому перед ними встают новые маркетинговые задачи, связанные с применением информационных технологий в коммуникации с целевой аудиторией. Но для многих организаций культурной сферы это становится проблемой, так как это процесс связан с множеством трудностей. Статья посвящена проблематике применения информационных технологий в маркетинговой деятельности российских учреждений культуры. В статье рассматриваются примеры из практической деятельности российских организаций.
Militärische Einflüsse auf Leitbilder, Lösungsmuster und Entwicklungsrichtungen der Computerkommunikation
Creators: name: Hellige, Hans Dieter
Publisher: name: Universität Bremen
Year: 1992
Subjects: subject: Computerkommunikation
subject: militärisch-ziviler Technologietransfers
subject: Großvernetzungsprojekt
subject: SAGE
subject: ARPANET
subject: 0

description: Während die Spin-off-Forschung bisher überwiegend Apparate- oder Bauelementetechniken untersucht hat, möchte der folgende Beitrag anhand der Computerkommunikation komplexere Anwendungssysteme unter dem Aspekt des militärisch-zivilen Technologietransfers analysieren.1) Der Begriff der Computerkommunikation umfaßt dabei sowohl Entwicklung, Betrieb und Nutzung von Daten- und Rechnernetzen als auch die entsprechenden Infrastruktur-Einrichtungen, und zwar von der lediglich fernmeldetechnischen Verbindung von Computern, Terminals usw. bis zu integrierten Computernetzen, die über den reinen Datentransport hinaus auch den Ressourcen-, Last- und Funktionsverbund realisieren können. Da wesentliche Basis- und Systemtechniken sowie die frühen Anwendungskonzepte vor allem im militärindustriellen Komplex der USA entstanden sind, steht die US-Entwicklung der Computerkommunikation hier im Mittelpunkt. Anhand der beiden wichtigsten militärischen Großvernetzungsprojekte, SAGE und ARPANET, werden verschiedenartige Prägungsformen mit unterschiedlicher Prägungstiefe untersucht. Dabei zeigt sich, daß immaterielle Übertragungsvorgänge wie der Leitbildtransfer und eine generelle (Fehl-)Orientierung des Problemlösungshorizontes von Ingenieuren eine viel folgenreichere Bedeutung haben können als die bisher von der Spin-off-Forschung bisher analysierten unmittelbaren kommerziellen Einflüsse auf Hard- und Software-Techniken
Rashba-Dirac cones at the tungsten surface: Insights from a tight-binding model and thin film subband structure
Creators: name: Kirczenow, George
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A tight-binding model of bcc tungsten that includes spin-orbit coupling is developed and applied to the surface states of (110) tungsten thin films. The model describes accurately the anisotropic Dirac cone-like dispersion and Rashba-like spin polarization of the surface states, including the crucial effect of the relaxation of the surface atomic layer of the tungsten towards the bulk. It is shown that the surface relaxation affects the tungsten surface states because it results in increased overlaps between atomic orbitals of the surface atomic layer and nearby layers whereas electric fields that are due to charge transfer between the tungsten and the vacuum near the surface or between the bulk and surface layers do not significantly affect the Rashba-Dirac surface states. It is found that hybridization with bulk modes has differing strengths for thin film surface states belonging to the upper and lower Rashba-Dirac cones and results in $reversal$ of the directions of travel of spin $\uparrow$ and $\downarrow$ electrons in most of the upper Rashba-Dirac cone relative to those expected from phenomenology. It is also shown that intrasite (not intersite) matrix elements of the spin-orbit Hamiltonian are primarily responsible for the formation of the Rashba-Dirac cones, and their spin polarization. This finding should be considered when modeling topological insulators, the spin Hall effect and related phenomena.
description: 7 pages, 4 figures
Which FAIR Are You? A Detailed Comparison of Existing FAIR Metrics in the Context of Research Data Management - Presentation
Creators: name: Moser, Mario
name: Werheid, Jonas
name: Hamann, Tobias
name: Abdelrazeq, Anas
name: Schmitt, Robert H.
Publisher: name: Zenodo
Year: 2023
Subjects: FAIR
FAIR Metrics

description: Presentation at the 1st Conference on Research Data Infrastructure (CoRDI 2023) in Karlsruhe [https://www.nfdi.de/cordi-2023/]. Which FAIR Are You? Presentation on a comparison of FAIR metrics. The peer-reviewed extended abstract in the proceedings of the 1st Conference on Research Data Infrastructure (CoRDI 2023): 10.52825/cordi.v1i.401 The comparison spreadsheet as supplementary material: 10.5281/zenodo.8342686
description: The authors would like to thank the Federal Government and the Heads of Government of the Länder, as well as the Joint Science Conference (GWK), for their funding and support within the framework of the NFDI4Ing consortium. Funded by the German Research Foundation (DFG) - project number 442146713
Vulnerability and resilience of cyber- physical power systems: Results from an empirical-based study
Creators: name: Tapia, Mariela
name: Thier, Pablo
name: Gößling-Reisemann, Stefan
Publisher: name: Universität Bremen
Year: 2020
Subjects: subject: cyber-physical power systems
subject: resilience management
subject: vulnerability assessment
subject: guiding principle
subject: resilience enhancing measures
subject: 500

description: Power systems are undergoing a profound transformation towards cyber-physical systems. Disruptive changes due to energy system transition and the complexity of the interconnected systems expose the power system to new, unknown and unpredictable risks. To identify the critical points, a vulnerability assessment was conducted, involving experts from power as well as information and communication technologies (ICT) sectors. Weaknesses were identified e.g., the lack of policy enforcement worsened by the unreadiness of involved actors. The complex dynamics of ICT makes it infeasible to keep a complete inventory of potential stressors to define appropriate preparation and prevention mechanisms. Therefore, we suggest applying a resilience management approach to increase the resilience of the system. It aims at a better ride through failures rather than building higher walls. We conclude that building resilience in cyber-physical power systems is feasible and helps in preparing for the unexpected.