Abstract Due to its prominent role in online social networks, avatar creation has become an important research topic the field of computer-mediated communication. One main motive for creating avatars is representation one’s own identity. Previous indicates that depends on activity context which created. Though, studies comparing a wide variety contexts are still missing. The present study addresses this empirical gap by examining (1) self-representation physical, demographical, and...

Abstract The roles of YouTube videos and YouTubers for getting information about political societal topics are becoming gradually more important to young people. Quantitative research people’s use perception YouTube-videos their potential effects on opinion formation is sparse though. This cross-sectional quantitative study addresses this empirical gap. We examined analytic-critical evaluations (YTPS-videos), how these affected by the age gender. analysed questionnaire data 562 participants...

Virtual reality (VR) and 360° VR videos are becoming increasingly important for mass media campaigns due to their immersive potential. This applies in particular topics that many recipients find difficult grasp, including environmental protection issues. However, a comprehensive comparison of the effects on users' attitudes behavioural intentions with more traditional is lacking. Previous research has revealed mixed results mediation were largely neglected. To address this gap, we compare 2D...

Social media influencers focussing on beauty, fashion, and fitness topics (BFFI) are important opinion leaders Instagram. Nevertheless, they criticized for their potential negative influence followers' physical mental health due to potentially biased self-presentation. Previous research has mainly focused perceptions of influencers' self-presentation, leaving a gap regarding the views. The present survey included 26 female BFFIs from Germany (18-35 years old), with 16 self-reported...

Abstract Campylobacter jejuni is a commensal in many animals but causes diarrhea humans. Its polysaccharide capsule contributes to host colonization and virulence strain‐ model‐specific manner. We investigated if the its heptose are important for interactions of strain NCTC 11168 with various hosts their innate immune defenses. determined that they support bacterial survival Drosophila melanogaster enhance Galleria mellonella . showed had limited antiphagocytic activity human chicken...

The free energies of activation for hindered rotation around the C—N bond have been determined a series N,N-disubstituted thioamides by means 13 C and 1 H dynamic nmr.A comparison between barriers 20 amides corresponding thioamides, studied under similar conditions, has drawn up using both our results data obtained from literature. An excellent linear correlation obtained. same also holds primary (thio)amides seems to be general significance. Substituent effects on barrier heights are...

Abstract This work presents the implementation of a synthetic aperture radar (SAR) at 77 GHz, for automotive applications. is unique in sense that it radar-only solution most use-cases. The set-up consists two sensors, one to calculate ego trajectory and second SAR measurements. Thus need expensive GNSS-based dead reckoning systems, which are any case not accurate enough fulfill requirements SAR, eliminated. results presented here have been obtained from able deliver processed images matter...

We propose a novel approach to measure photosynthetically active radiation (PAR ) in the form of photosynthetic photon flux density with an inexpensive, small multi-channel spectrometer sensor, integrated optical filters and analog-to-digital converter. Our experiments prove that combination eight spectral channels different sensitivities, such as sensorchip use (AS7341, ams), derive PAR accuracy 14/m2/s. Enabled by sensor architecture, additional information about light quality can be...

Abstract 13 C n.m.r. spectra of a series N , ‐disubstituted thioamides have been recorded and signal assignments were performed. Separate signals are observed for methylene groups fixed on the nitrogen atom. Since carbon atom syn to thiocarbonyl sulfur resonates at higher field than anti carbon, ‐ assignment in 1 H is easily obtained by selective double irradiation. This method, which rapid reliable, affords rather general solution interesting problem resonance tertiary amides (and analogous...

Testing is an effective learning method, and it the basis of mobile quiz apps. Quiz apps have potential to facilitate remote self-regulated learning. In this context, automatized feedback plays a crucial role. two experimental studies, we examined effects types on performance, namely, standard corrective that incorporates additional information related correct response option. We realized controlled lab setting ( n = 68, Study 1) unsupervised 150, 2). phase, participants used app received...

Abstract A large series of cyclohexane and cyclopentane spiro compounds has been studied by carbon‐13 NMR. Increments have derived in terms α, β, γ substituent effects, one ring being considered as the other. As usual α β effects are paramagnetic diamagnetic. They compared with corresponding associated introduction a gem dimethyl group into or ring. The size two rings involved spirane structure marked influence especially on chemical shift carbon atom. Comparison between monospiro dispiro...

Potential alcohol, as obtained by grape maturity, affects the extraction of phenolics during winemaking. The extent to which potential alcohol is correlated phenolic and sensory characteristics red wine was investigated. Decoupling ripening kinetics constituents due climate change emphasizes this question. impact naturally maturity or adjusted sugar addition, representing high but low on investigated for two varieties over vintages. Enhancement late harvest conditions did not achieve made...

We present a planning and control framework that enables physically simulated characters to perform various types of motor tasks. To create physically-valid motion plans, our method uses hierarchical set simplified models. Computational resources are therefore focused where they matter most: plans for the immediate future generated using higher-fidelity models, while coarser models used with longer time horizons. Our can be different skills, including ones actions arms legs must precisely...

Previous research on news perception has been dominated by a cognitively oriented perspective reception processes, whereas emotions have widely neglected. Consequently, it remained open which features of story might elicit affective responses and hence modulate perception, shifting the focus to emotional potential narrative. According affective-disposition theory, experience suspense is striving force immersion in fictional dramas. Thereby, positive disposition toward protagonist high...

Introduction Social networking sites (SNS) are increasingly used by consumers to read and share political news. In this context, Instagram plays an important role due its prevalence visual characteristics. However, previous research has highlighted that fail identify the source of online news, though characteristics were shown be vital for news credibility perceptions. Nevertheless, on whether which have influence consumers’ perceptions engagement intentions lacking. The present study...