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Mate value is an important concept in mate choice research although its operationalization and understanding are limited. Here, we reviewed and evaluated previously established conceptual and methodological approaches measuring mate value and presented original research using individual differences in how people view themselves as a face-valid proxy for mate value in long- and short-term contexts. In data from 41 nations (N = 3895, M age = 24.71, 63% women, 47% single), we tested sex, age, and relationship status effects on self-perceived mate desirability, along with individual differences in the Dark Triad traits, life history strategies, peer-based comparison of desirability, and self-reported mating success. Both sexes indicated more short-term than long-term mate desirability; however, men reported more long-term mate desirability than women, whereas women reported more short-term mate desirability than men. Further, individuals who were in a committed relationship felt more desirable than those who were not. Concerning the cross-sectional stability of mate desirability across the lifespan, in men, short- and long-term desirability rose to the age of 40 and 50, respectively, and decreased afterward. In women, short-term desirability rose to the age of 38 and decreased afterward, whereas long-term desirability remained stable over time. Our results suggest that measuring long- and short-term self-perceived mate desirability reveals predictable correlates.
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This overview article for the special issue on ‘Desirable Transport Futures’ sets out with a brief introduction of the current development of the global transport system, suggesting that it remains unclear whether transport systems are heading towards desirable change. This desirability is defined as a reduction in the system's negative externalities, including accidents, congestion, pollutants and/or noise, while retaining its functionality. There is evidence that transport externalities continue to grow with an increasingly mobile and growing global population. Against this background, the article discusses what may constitute more desirable transport futures, as well as the barriers that have to be overcome to move towards such futures. The article concludes that transport governance will be essential to far-reaching change, and that greater focus has to be placed on individual and societal socio-psychological perspectives shaping mobility consumption. Nine papers contained in this special issue provide in-depth analyses of transport systems, as well as insight into how these may be changed in more systemic ways. A concluding research agenda is offered that outlines a number of innovative approaches researchers may pursue as part of further efforts to engender desirable transport futures.
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Why people conduct different sharing about their travel is unclear. Understudied areas include the roles of tourism activity type, tourist well-being, and social context. Under the framework of construal level theory, three studies which combined secondary data and experiments revealed that: 1) challenging (relaxing) tourism activities lead to more desirability (feasibility) sharing; 2) eudaimonia (hedonia) occupy the dominant position and mediate the relationship between challenging (relaxing) tourism activity and desirability (feasibility) sharing; and 3) social context induces the transformation of the relationship between eudaimonia and hedonia, and has a significant moderating impact on the mechanism of travel experience sharing type. Theoretical and managerial implications of travel experience sharing type and mutual transformation between eudaimonia and hedonia are discussed.
Despite their various appealing features, drones also have some undesirable side-effects. One of them is the psychoacoustic effect that originates from their buzzing noise that causes significant noise pollutions. This has an effect on nature (animals run away) and on humans (noise nuisance and thus stress and health problems). In addition, these buzzing noises contribute to alerting criminals when low-flying drones are deployed for safety and security applications. Therefore, there is an urgent demand from SMEs for practical knowledge and technologies that make existing drones silent, which is the main focus of this project. This project contributes directly to the KET Digital Innovations\Robotics and multiple themes of the top sectors: Agriculture, Water and Food, Health & Care and Safety. The main objective of this project is: Investigate the desirability and possibilities of extremely silent drone technologies for agriculture, public space and safety This is an innovative project and there exist no such drone technology that attempts to reduce the noises coming from drones. The knowledge within this project will be converted into the first proof-of-concepts that makes the technology the first Minimum Viable Product suitable for market evaluations. The partners of this project include WhisperUAV, which has designed the first concept of a silent drone. As a fiber-reinforced 3D composite component printer, Fiberneering plays a crucial role in the (further) development of silent drone technologies into testable prototypes. Sorama is involved as an expert company in the context of mapping the sound fields in and around drones. The University of Twente is involved as a consultant and co-developer, and Research group of mechatronics at Saxion is involved as concept developer, system and user requirement verifier and validator. As an unmanned systems innovation cluster, Space53 will be involved as innovation and networking consultant.
While several governmental and research efforts are set upon mobility-as-a-service (MaaS), most of them are driven by individual travel behavior and potential usage. Scholars argue that this is a too narrow perspective when evaluating government projects because choices individuals make in a private setting might not accurately reflect their preferences towards public policy. Participatory Value Evaluation (PVE) is a novel evaluation framework specifically designed to alleviate this issue by analyzing preferences on the allocation of public budgets. Thus, based on PVE, this project aims at assessing different features of MaaS-services (e.g. enhancing mobility of the elderly and the poor, complementing public transport, etc.) from a social desirability perspective and compare them with investments in alternative social projects. Specifically, it aims at establishing the citizen value of MaaS as compared to social investments in green/recreational areas or transport infrastructure (e.g. bike or bus lanes), and eliciting trade-offs between different features of them. The project includes the selection of different investment projects (and their features) that are politically relevant in Rotterdam. It also includes a qualitative assessment on the way individuals evaluate different social projects and their features and a quantitative assessment based on choice models that allow eliciting trade-offs between different attributes and projects. Finally, policy recommendations are provided based on these results. They allow conceiving investments projects to maximize the societal benefits as well as to construct optimal investment portfolios. This information is to be used as a complement of the evaluation of projects on the basis of individual preferences.
Een duurzaam energiesysteem op wijkniveau: met Smart Solar Charging wordt lokaal opgewekte zonne-energie in (deel)auto’s opgeslagen via een slim en dynamisch systeem (Vehicle2Grid). Wij onderzoeken de wenselijkheid van deze dienst voor gebruikers.Doel We onderzoeken wat de beste ervaringen zijn van de gebruikers van het energiesysteem Smart Solar Charging. Een Smart Solar Charging-systeem werkt pas bij een (deel)autosysteem van minimaal honderd auto’s. Dit kan een goede oplossing zijn voor het mobiliteitsprobleem in de steden. Maar wat is het voordeel voor de gebruikers? Wat verandert er in hun leven en hoe reageren zij hierop? Waar zijn zij bang voor? Wat verlangen ze? Zoals hierboven genoemd zijn dit belangrijke aspecten om ervoor te zorgen dat het nieuwe systeem daadwerkelijk kan slagen. Hoe ziet de ervaringswereld van mogelijke betrokkenen eruit? Het antwoord op deze vraag zal worden meegenomen in de ontwikkeling van de diensten. Resultaten Dit onderzoek loopt. Na afloop vind je hier een samenvatting van de resultaten. Op de projectwebsite lees je meer over Smart Solar Charging Looptijd 01 april 2017 - 01 april 2021 Aanpak Het lectoraat Co-Design van Hogeschool Utrecht doet onderzoek naar optimale gebruikersinteracties van de beoogde diensten. In het Design Innovation model van Ideo zijn drie elementen die de basis voor innovatie zijn. Waar andere partijen in het project zich met name richten op de zakelijke en technische kanten van het verhaal, onderzoekt het lectoraat Co-Design de human en dus desirability-kant, vanzelfsprekend in verbinding met de twee andere elementen.