77,125 research outputs found
Intercultural discussion of conceptual universals in discourse: joint online methodology to bring about social change through novel conceptualizations of Covid-19
No full textThe present article addresses the professional conclusions of an international platform of education in intercultural discourse in the European Union’s EDUC Project. In flagging social issues and concerns, cross-cultural academic collaboration is a powerful tool to bring about social change. In our educational project participants encounter different cultures, so the discussed topics, and especially the metaphors for the Covid-19 pandemic, receive instant reflections from different cultural perspectives, multiplying the potential sphere of valid interpretations, yielding novel perspectives in intercultural pragmatics and communication. This gives birth to a novel methodology that builds on the open-minded integration of different points of view, understanding universal traits of human cognition and differences in culture in the linguistics of discourse
Thermal expansion, polarization and phase diagrams of Ba1−yBi2y/3Ti1−xZrxO3 and Ba1−yLayTi1−y/4O3 compounds
No full textThe thermal expansion properties of the ceramic compositions Ba1−yLayTi1−y/4O3 (y = 0.0, 0.026, 0.036, 0.054) and Ba1−yBi2y/3Ti1−xZrxO3 (y = 0.10; x = 0.0, 0.04, 0.05, 0.10, 0.15) were determined in the temperature range 120–700 K. We report the temperature-dependent measurements of the strain, thermal expansion coefficient and the magnitude of root mean square polarization. The results obtained are discussed together with the data on the structure and dielectric properties
The Benefits of Being Economics Professor A (and not Z)
No full textAlphabetic name ordering on multi-authored academic papers, which is the convention in the economics discipline and various other disciplines, is to the advantage of people whose last name initials are placed early in the alphabet. As it turns out, Professor A, who has been a first author more often than Professor Z, will have published more articles and experienced afaster growth rate over the course of her career as a result of reputation and visibility. Moreover, authors know that name ordering matters and indeed take ordering seriously: Several characteristics of an author group composition determine the decision to deviate from the default alphabetic name order to a significant extent.performance measurement, incentives, economists, name ordering
Final word on Jersey Dutch
No full textIn this article, William Z. Shetter compares and contrasts the dialects that developed between different Dutch colonies in the New World. He explores in-depth the nuances of Jersey Dutch, and provides theories to explain how Dutch and colonial languages blended. The article is reprinted from American Speech, December 1958, Volum XXXIII, No. 4
Generation Z and their (non)existing relationships
No full textDie Generation Z ist wie keine Generation zuvor durch die Individualisierung und Pluralisierung der Lebensläufe geprägt, wodurch neue Lebens- und Beziehungsmodelle möglich werden. Dennoch ist das Liebesleben der Generation im deutschsprachigen Raum kaum erforscht. Deshalb ist das Ziel dieser Masterarbeit, die Prävalenz von Partnerschaftsmodellen abseits der monogamen Beziehung (offene und polygame/-amore Beziehung, kurzfristige sexuelle Kontakte) und deren zugrundeliegenden Werte aufzuzeigen. Zusätzlich wird überprüft, inwieweit soziale und psychologische Faktoren in Verbindung mit unterschiedlichen Partnerschaftsmodellen stehen. Zur Beantwortung der Forschungsfrage ist ein Fragebogen generiert worden, der an Personen zwischen 18 und 28 Jahren versendet wurde. Insgesamt konnten 511 vollständige Fragebögen zur quantitativen Datenanalyse herangezogen werden.Die Ergebnisse zeigen, dass sich die Generation Z ihren Freiheiten in Bezug auf Partnerschaft bewusst ist, indem verschiedene Partnerschaftsmodelle ausprobiert und gelebt werden, die monogame Beziehung wird dennoch mehrheitlich präferiert. Den Partnerschaftsmodellen liegen unterschiedliche Einstellungen in Bezug auf Attraktivität, emotionale sowie sexuelle Treue, Kontakthäufigkeit, guter Sex, Vertrauen sowie Sicherheit und Geborgenheit zugrunde. Es konnte festgehalten werden, dass jene Menschen, die Erfahrungen mit polyamoren Beziehungen oder kurzfristigen sexuellen Kontakten gemacht haben, im Vergleich zu den anderen Partnerschaftsmodellen unsicherer gebunden sind. Zudem wird die Qualität der Alternativen in monogamen Beziehungen am geringsten wahrgenommen. Außerdem dient das eingegangene Commitment als Indikator, Langzeitbeziehungen von kurzfristigen Affären zu trennen. Anzumerken ist, dass die neu gewonnenen Freiheiten in Bezug auf Partnerschaft auch herausfordernd wahrgenommen werden. Schlussfolgernd bietet die vorliegende Arbeit einen Einblick in die Dynamik romantischer Beziehungen der Generation Z.Like no generation before, the Generation Z is characterized by individualization and pluralization of life courses. This has led to newly gained freedoms, which allow new life and relationship constellations. So far in the german-speaking scientific community the love life of the Generation Z has received little attention. Therefore, the aim of this master´s thesis is to demonstrate the prevalence of relationship types beyond monogamous relationships (open and polygamous/amorous relationships, short-term sexual contacts) and their underlying values. Additionally, it is examined to what extent social and psychological factors are associated with different types of partnership. To address the research question, a questionnaire was generated and distributed to individuals between 18 and 28 years old. In total, 511 complete questionnaires were collected for quantitative data analysis.The results show that Generation Z are aware of their freedom in terms of partnership by trying out and living different partnership models, but the majority still prefer monogamous relationships. Different attitudes towards attractiveness, emotional and sexual fidelity, frequency of contact, good sex, trust, security and intimacy underlie the different relationship models. Furthermore, it was found that individuals who have experience with polyamorous relationships or casual sexual contacts tend to be more insecurely attached compared to the other types of relationships. Additionally, the quality of alternatives in monogamous relationships is perceived as the lowest. Moreover, commitment serves as indicator to distinguish between long-term relationships and short-term affairs. It should be noted that die gained freedoms regarding relationships are also perceived as challenging. In conclusion, this thesis provides insights into the dynamics of romantic relationships of the Generation Z.Julia Rachensperger, BA, Carina Schnell, BAMasterarbeit Universität Graz 2024Zusammenfassungen auf Deutsch und Englisc
TOWARDS UNRAVELLING THE FORMATION OF ICE GRAINS: THE PHENANTHRENE-WATER COMPLEX
No full textPolycyclic aromatic hydrocarbons (PAHs) are believed to act as catalysts in ice grains formation. The formation of interstellar ice can thus be described as an aggregation process of gaseous water starting on PAH surfaces.
The structural investigation of PAH-HO clusters, therefore, represents a first and important step to undertake in order to shed light on potential ice grains formation pathways. Previous studies have focused on mimicking the initial stage of this aggregation process in laboratories by forming complexes between PAH and water molecules in the gas phase and investigating them by microwave spectroscopy. As the outcome of these studies, precise information on the structure and intermolecular interactions were obtained [1,2].
Herein we take this approach further and present preliminary data on the structural investigation of the complex of phenanthrene, a PAH molecule featuring three fused benzene rings, and water. Its pure rotational spectrum was recorded using a chirped pulse Fourier transform microwave spectrometer (CP-FTMW) operating in the region 2-8 GHz, and structural information on the respective water clusters can be obtained.\\
[1] Pérez, C.; Steber, A. L.; Rijs, A. M.; Temelso, B.; Shields, G. C.; Lopez, J. C.; Kisiel, Z.; Schnell, M., Phys. Chem. Chem. Phys. 2017, 19, 14214-14223.
[2] Steber, A. L.; Pérez, C.; Temelso, B.; Shields, G. C.; Rijs, A. M.; Pate, B. H.; Kisiel, Z.; Schnell, J. Phys. Chem. Lett. 2017, 8, 5744-5750
Logarithmic variance profiles and the corresponding f-1 spectra of temperature fluctuations in turbulent Rayleigh-Bénard convection
No full textWe report experimental results for the temperature variance 2(z) and the corresponding frequency spectra P(f) in turbulent Rayleigh-Bénard convection (RBC) in a cylindrical sample of aspect ratioT= D/L = 1:00 (D = 1:12 m is the diameter and L = 1:12 m the height). The measurements were conducted in the Rayleigh-number range 1011 < Ra < 1:35 1014 and Pr ' 0:8. For Ra = 1:35x1014, 2(z) could be described well by a logarithmic dependence on the vertical position z in a range of z 1 < z < z 2 with z 1 ' 70 and z 2 = 0:1L. Here L=(2Nu) is the thickness of a thin thermal sublayer adjacent to the horizontal plate where the heat flux (denoted by the Nusselt number Nu) is carried mostly by thermal diffusion. In the log layer, we found that the temperature spectra had a significant frequency range over which P(f) f with close to 1. As Ra decreased, increased so that the log layer became thinner. At Ra = 2:05 1011, z 2 < z 1 and therefore there was no range for a log layer. Correspondingly, the temperature spectrum near the horizontal plate did not have the f1 scaling form either
Towards unravelling the formation of ice grains: The phenanthrene-water complex
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Previous issue date: 6Polycyclic aromatic hydrocarbons (PAHs) are believed to act as catalysts in ice grains formation. The formation of interstellar ice can thus be described as an aggregation process of gaseous water starting on PAH surfaces. The structural investigation of PAH-H2O clusters, therefore, represents a first and important step to undertake in order to shed light on potential ice grains formation pathways. Previous studies have focused on mimicking the initial stage of this aggregation process in laboratories by forming complexes between PAH and water molecules in the gas phase and investigating them by microwave spectroscopy. As the outcome of these studies, precise information on the structure and intermolecular interactions were obtained [1,2].
Herein we take this approach further and present preliminary data on the structural investigation of the complex of phenanthrene, a PAH molecule featuring three fused benzene rings, and water. Its pure rotational spectrum was recorded using a chirped pulse Fourier transform microwave spectrometer (CP-FTMW) operating in the region 2-8 GHz, and structural information on the respective water clusters can be obtained.
[1] Perez, C.; Steber, A. L.; Rijs, A. M.; Temelso, B.; Shields, G. C.; Lopez, J. C.; Kisiel, Z.; Schnell, M., Phys. Chem. ´ Chem. Phys. 2017, 19, 14214-14223. [2] Steber, A. L.; Perez, C.; Temelso, B.; Shields, G. C.; Rijs, A. M.; Pate, B. H.; ´ Kisiel, Z.; Schnell, J. Phys. Chem. Lett. 2017, 8, 5744-5750
Statistics of the subgrid scales after the shock-turbulence interaction
No full textThe interaction of a normal shock with isotropic turbulence (IT) represents a basic problem for studying some of the phenomena associated with high speed flows, such as hypersonic flight, supersonic combustion and Inertial Confinement Fusion (ICF). In general, in practical applications, the shock width is much smaller than the turbulence scales and the upstream turbulent Mach number is modest. In this case, recent high resolution shock-resolved Direct Numerical Simulations (DNS) (Ryu and Livescu, J. Fluid Mech., 756, R1, 2014) show that the interaction can be described by the Linear Interaction Approximation (LIA). By using LIA to alleviate the need to solve the shock, DNS post-shock data can be generated at much higher Reynolds numbers than previously possible. Here, such results with Taylor Reynolds number around are used to investigate the properties of the subgrid scales (SGS). In particular, it is shown that the shock interaction decreases the asymmetry of the SGS dissipation PDF as the shock Mach number increases, with a significant enhancement in size of the regions and magnitude of backscatter
Transition to turbulence in a qblique shock-wave/boundary-layer interaction at M=15
No full textDirect numerical simulations are carried out for different forcing techniques to trigger transition during the interaction between an oblique shock-wave and a laminar boundary-layer at M = 1.5. Three forcing methods are used: a) forcing of oblique unstable modes, whose shape and behaviour are determined by the local linear stability theory, b) broadband free-stream acoustic disturbances, and c) a cold plasma flow control device. While the oblique-mode breakdown is dominant for low-amplitude forcing, long streaky structures drive the transition process in a high-amplitude disturbance environment. LES are also performed on the experimental setup by the Institute of Theoretical and Applied Mechanics (ITAM) from Novosibirsk State University with cold plasma actuation. As well as the disturbance type, the effect of Reynolds number and forcing amplitude will be investigated
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