Hochschulbibliothekszentrum des Landes Nordrhein-Westfalen

Institutionelles Repositorium der Hochschule Düsseldorf
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    Kindliche Viktimisierung als Faktor in der Entwicklung sexueller Delinquenz

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    „Inwiefern besteht ein Zusammenhang zwischen kindlicher Viktimisierung und der Wahrscheinlichkeit der späteren Entwicklung sexueller Delinquenz?“. Zur Beantwortung der Forschungsfrage wird eine literaturgestützte Methodik gewählt. Die Auswahl relevanter Literatur erfolgt auf interdisziplinäre Basis, da die Thematik der kindlichen Viktimisierung und sexuellen Delinquenz verschiedene Fachrichtungen umfasst. Psychologische, kriminologische und gesellschaftliche Perspektiven werden integriert, um die Komplexität des Themas zu erfassen und aus vielschichtigen Blickwinkeln zu beleuchten

    Condensation Flow of Refrigerants Inside Mini and Microchannels: A Review

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    Nowadays, the demand for obtaining high heat flux values in small volumes has increased with the development of technology. Condensing flow inside mini- and microchannels has been becoming a promising solution for refrigeration, HVAC, air-conditioning, heat pumps, heat pipes, and electronic cooling applications. In these applications, employing mini/microchannels in the condenser design results in the working fluid, generally refrigerant, undergoing a phase change inside the mini/microchannels. On the other hand, the reduction in the hydraulic diameter during condensation gives rise to different flow regimes and heat transfer mechanisms in the mini- and microchannels compared to the conventional channels. Therefore, the understanding of fluid flow and heat transfer characteristics during condensation of refrigerant inside mini- and microchannels has been gaining importance in terms of condenser design. This study presents a state-of-the-art review of condensation studies on refrigerants inside mini- and microchannels. The review includes experimental studies as well as correlation models, which are developed to predict condensation heat transfer coefficients and pressure drop. The refrigerant type, thermodynamical performance, and compatibility, as well as the environmental effects of refrigerant, play a decisive role in the design of refrigeration systems. Therefore, the environmental impacts of refrigerants and current regulations against them are also discussed in the present review

    Age- and Sex-Related Differences in Music Requests on a Radio Show for Children

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    In research on the development of musical preferences, children are often asked either to evaluate musical pieces that have been previously selected by adult experimenters, or to give self-reports on preferences for different musical styles. This study involved analyzing a sample of 1,412 freely and publicly expressed music requests from children aged between 4 and 11 years taken from a German radio program, with regard to age- and sex-specific differences. The music was categorized into genres, as listed on Spotify, and examined using methods of music information retrieval provided by the Spotify Developer application programming interface. Results showed that, at younger ages, the requests were generally more evenly distributed across different genres. Regarding single genres, we observed small positive relationships between age and the likelihood of requesting the genres pop or electro and small negative relationships between age and the likelihood of requesting A capella, German songwriter, indie, theme songs, or children's music. Furthermore, we found that boys requested significantly more rock or hip-hop, whereas girls had a higher tendency to ask for pop. Finally, age- (but no sex-) related differences regarding the Spotify features of valence and liveness of the requested music were found, which were related to the preference for children's music at younger ages. The results thus suggest that previous findings regarding differences between boys and girls and an increasing formation of distinct genre preferences during infancy also apply to single song requests made on a radio show

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    Institutionelles Repositorium der Hochschule Düsseldorf
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