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This research paper aims to provide information about certified learning apps for biological education and gave an ordered list of all learning apps currently used by Austrian biology teachers in the classroom, which should serve as an overview for all biology teachers. In addition, the (currently little known) certification process of learning apps (seal of quality for educational applications) is described.

Online questionnaire for all biology teachers throughout Austria, on the one hand to find out the apps, and on the other hand to research how Austrian teachers find suitable apps. The data were evaluated using descriptive statistics.

A total of84 different learning apps are currently used by biology teachers in Austria. There are two certified lernapps in Austria, both are used. The most common app in biology lessons is “Anton”. The teachers find the information about apps throughout their own research or through colleagues. There are regional and school-specific differences in regards of usage and knowledge about seal of quality. It needs its own teacher training (TT) via suitable learning apps, because problems (data protection, advertising) are sometimes not taken into account during use.

Limitations of this paper are that some of the teachers indicated the apps from other subjects (mathematics) to use this learning app, although this is not possible for biology lessons. Data protection was stated to the best of the authors’ knowledge by the authors, if the authors were not sure it says “unsure”. The participants are mainly women, but this corresponds to the gender ratio, which is typical of the Austrian teaching profession.

The overview of the apps, compiled by this Austria-wide research, can be taken over into the biology lessons of all teachers. In addition, on the basis of this study, a TT at the University of Education 2023 in Linz was created. In addition, the (currently little known) certification process of learning apps is described.

The TT and the overview of the learning apps used serve as guidelines for teachers as to which apps they can use in biology lessons without hesitation. Above all, the aspect of the follow-up of digital media/apps will be emphasized. Data backup, inappropriate advertising must be processed in class or completely omitted. Biology teachers need the right training (TT) and appropriate materials and tools (apps) to reduce problems (cybercrimes).

Currently, there is no prepared list of suitable (certified and uncertified) learning apps for biology lessons. There are isolated recommendations and individual apps, but the selection criteria and backgrounds of the authors are not clear. This list shows which apps (how often) are used by which teachers. In addition, the (currently little known) certification process of learning apps is described.

Self-presentation is an important aspect of influencer marketing. Drawing upon self-presentation theory and source credibility theory, this study aimed to unravel how the self-presentation strategies of a layperson, opinion leadership and micro-celebrity influence source credibility (i.e. trustworthiness, expertise, physical attractiveness and social attractiveness) and how source credibility, in turn, affects brand responses.

An online experiment among female participants (N = 229) was conducted. Participants were shown a sponsored blog in which the influencer presented herself as either a layperson, an opinion leader or a micro-celebrity.

The study demonstrated that the presentation strategy of a layperson was more persuasive than a micro-celebrity presentation because of higher levels of (1) trust and (2) social attractiveness. In addition, opinion leaders were perceived as having more expertise than laypeople and, therefore, positively enhanced brand responses.

The current findings provide relevant insights into the theoretical mechanisms (i.e. expertise, trustworthiness and social attractiveness) that explain the effects of self-presentation strategies on brand responses.

Our findings imply that credibility perceptions determine the persuasiveness of the SMI. This study showed that layperson and opinion leadership self-presentation strategies are relatively more persuasive.

This study is the first to show that influencers’ self-presentation strategies determine how people respond to the brands that influencers promote. In addition, we show that these effects are explained by the influencers’ trust, social attractiveness and expertise.

Providing leadership education for young men growing up without their father, through a structured curriculum and mentoring program, should enhance their development. To examine this, the authors interviewed adult alumni who participated as adolescents in a cohort-based, sixmonth leadership program. Interviews outlined several key themes: once served by others the young men desired to serve their community, choosing an authentic leadership educator matters, program mentors inspired positive life changes, and the learned leadership lessons transcended the setting and the curriculum. This qualitative project examined the efficacy of a youth leadership development program by interviewing past participants. This research outlined how service to others can inspire more service and that leadership education has the potential to alter lives, and in this case, even save lives.

Polyurethane (PUR) foam parts are traditionally manufactured using metallic molds, an unsuitable approach for prototyping purposes. Thus, rapid tooling of disposable molds using fused filament fabrication (FFF) with polylactic acid (PLA) and glycol-modified polyethylene terephthalate (PETG) is proposed as an economical, simpler and faster solution compared to traditional metallic molds or three-dimensional (3D) printing with other difficult-to-print thermoplastics, which are prone to shrinkage and delamination (acrylonitrile butadiene styrene, polypropilene-PP) or high-cost due to both material and printing equipment expenses (PEEK, polyamides or polycarbonate-PC). The purpose of this study has been to evaluate the ease of release of PUR foam on these materials in combination with release agents to facilitate the mulding/demoulding process.

PETG, PLA and hardenable polylactic acid (PLA 3D870) have been evaluated as mold materials in combination with aqueous and solvent-based release agents within a full design of experiments by three consecutive molding/demolding cycles.

PLA 3D870 has shown the best demoldability. A mold expressly designed to manufacture a foam cushion has been printed and the prototyping has been successfully achieved. The demolding of the part has been easier using a solvent-based release agent, meanwhile the quality has been better when using a water-based one.

The combination of PLA 3D870 and FFF, along with solvent-free water-based release agents, presents a compelling low-cost and eco-friendly alternative to traditional metallic molds and other 3D printing thermoplastics. This innovative approach serves as a viable option for rapid tooling in PUR foam molding.

Despite the widespread use and application of resilience, much uncertainty about the conceptualization and operationalization in the context of tourism destinations still exists. The purpose of this paper is to provide a conceptual elaboration on destination resilience and to introduce a model for an improved understanding of the concept.

Taking a conceptual research approach, this paper seeks to untangle the fuzziness surrounding the destination and resilience concept by providing a new interpretation that synthesizes theories and concepts from various academic disciplines. It analyses the current debate to derive theoretic baselines and conceptual elements that subsequently inform the development of a new “Destination Resilience Model”.

The contribution advances the debate by proposing three key themes for future resilience conceptualizations: (1) the value of an actor-centered and agency-based resilience perspective; (2) the importance of the dynamic nature of resilience and the (mis)use of measurement approaches; (3) the adoption of a dualistic resilience perspective distinguishing specified and general resilience. Building on these propositions, we introduce a conceptual model that innovatively links elements central to the concepts of destination and risk and combines different narratives of resilience.

The contribution advances the debate surrounding destination resilience by critically examining the conceptualization and operationalization of destination resilience within previous research and by subsequently proposing a “Destination Resilience Model” that picks up central element of the three new frontiers identified in the conceptually driven review. The innovative integration strengthens the comprehension of the resilience concept at destination level and supports building future capacities to manage immediate adverse impacts as well as novel and systemic risks.

The purpose of this paper is to investigate the effect of remelting each layer on the homogeneity of nickel-titanium (NiTi) parts fabricated from elemental nickel and titanium powders using laser powder bed fusion (LPBF). In addition, the influence of manufacturing parameters and different melting strategies, including multiple cycles of remelting, on printability and macro defects, such as pore and crack formation, have been investigated.

An LPBF process was used to manufacture NiTi alloy from elementally blended powders and was evaluated with the use of a remelting scanning strategy to improve the homogeneity of fabricated specimens. Furthermore, both single melt and up to two remeltings were used.

The results indicate that remelting can be beneficial for density improvement as well as chemical and phase composition homogenization. Backscattered electron mode in scanning electron microscope showed a reduction in the presence of unmixed Ni and Ti elemental powders in response to increasing the number of remelts. The microhardness values of NiTi parts for the different numbers of melts studied were similar and ranged from 487 to 495 HV. Nevertheless, it was observed that measurement error decreases as the number of remelts increases, suggesting an increase in chemical and phase composition homogeneity. However, X-ray diffraction analysis revealed the presence of multiple phases regardless of the number of melt runs.

For the first time, to the best of the authors’ knowledge, elementally blended NiTi powders were fabricated via LPBF using remelting scanning strategies.

Neither visitors of visiting friends and relatives (VFR) travel nor hosts are homogeneous segments (Griffin & Guttenberg, 2020). For this reason, this study aims to address students as hosts of VFR travel and analyzes differences in the visitor and the host segment. As a result, marketing implications for destination marketing organizations that seek to realize the potential of the student VFR segment arise.

This research project adopts a multi-method approach to derive a deeper empirical understanding of visitors’ behaviors and the role of students hosting friends and relatives (SHFR). The quantitative study aims to reveal the relevance and differences between visits to friends (VF) and visits to relatives (VR), whereas the qualitative study elaborates on the findings of the quantitative study and seeks to understand the role and experiences of students as hosts.

The findings reveal that VR and VF travelers vary in terms of their expenditure. Hosts’ spending depends on visitors’ budgets; in general, both their direct and indirect (when relatives pay) spending increases when they have visitors. Furthermore, the data identify two distinct hosting styles: functional hosting is concerned with providing outstanding hospitality based on a more traditional, guest-oriented understanding of the role, whereas integrative hosting blurs the lines between hospitality and lifestyle based on a more modern, host-oriented understanding of the role.

Regarding limitations, this study did not differentiate between students who were simultaneously locals and students who resided in the city only for study purposes. In a similar vein, the cultural background of the students was not considered in the research. Finally, the differences between VF and VR could further be explored in a quantitative follow-up study and in testing for significant differences in SHFR spending behaviors. Further research could examine whether domestic travelers, travelers with cultural proximity and/or short-distance VFR travelers are more likely to visit after COVID-19 as suggested by Backer and Ritchie (2017) in the case of crises and disaster.

Students as hosts differ from other hosts in VFR travel in their reluctance to embrace conventional tourism products. This study found that place attachment makes hosts of VFR travelers passionate ambassadors and advertisers for the destinations; destination marketing organizations (DMOs) could support this already positive image by providing and supporting students with more detailed information about their cities and the opportunities they offer. Results are of particular relevance because the COVID-19 pandemic is forcing DMOs to develop destination strategies that incorporate social-distancing and avoid crowded places.

When students take their friends out to events and nightclubs, they contribute significantly to experiences that go beyond typical tourism activities such as sightseeing and shopping. By offering special discounts to visitors who come with their hosts, DMOs could help visitors delve more deeply into city life and thereby reduce the likeliness of crowded city centers. Considering the findings relating to the social and emotional qualities of VFR travel, DMO marketing to VFR travelers could benefit from promoting socio-cultural spaces and offerings that value groups’ social ties (e.g. family prices for families with adult children) or alumni status.

According to the authors’ knowledge, this study is the first which analyzes both, visitors and hosts of VFR travel using a two methods approach. Very recently, Griffin and Guttenberg (2020) miss VFR research focusing on the heterogeneity of the segment, and Backer et al. (2020) claim for more VFR research on the role of hosts carried out outside of Australia, New Zealand, Canada, the UK and the USA. To the authors’ best knowledge, this study is the first which delivers empirical insights on SHFR in Central Europe.

The purpose of this paper is to consider the key findings of a yearlong collaborative research project focusing on the London Symphony Orchestra’s development, implementation and testing of a branded smartphone app. This app was designed to primarily sell discounted tickets, engage and inform a student audience.

A mixed-method approach including an analysis of the technology, focus groups and interviews was used.

Though the aims of app developers and marketers are often to provide customers with more choice and interactivity, this research suggests that though the app proved a useful mechanism for selling discounted tickets, it indicates that existing customers were mostly enroled and mobilised via a limited and focused functionality for the app.

This paper is significant as mobile phone use remains comparatively under-researched, in particular there is still a relatively small literature on the growing phenomena of apps, and even less on their use in brand marketing. Also importantly, though this paper offers a consideration of one case, the app has since been expanded to include the ticketing for ten major orchestras in London, and moreover, many of the lessons learnt from this study will be of relevance to other arts organisations.