Zoekresultaten

Life cycle highway; a four-stage approach to develop Cycle Highways

From Square Meters to Pixels. Semiconductors and the future of B-to-B events

Developing a personalised virtual coach ‘Denk je zèlf!’ for emotional eaters through the design of emotion-enriched personas

Obesity is a fast-growing societal threat, causingchronic conditions, physical and psychological health problems,as well as sickness absence and heavy healthcare costs. Despitenumerous attempts to promote physical activity and healthydiet, existing interventions do not focus on the commonemotional causes of obesity. There is a need for self-managementsupport of this vulnerable target group: emotional eaters. Thispaper presents the results of the design case study focusing on aholistic design and evaluation of a personalised virtual mHealthcoach that provides self-management training ‘Denk je zèlf!’(Dutch for ‘Develop a wise mind and counsel yourself’). Thetarget group are young adults with an emotional eating disorderand who are obese. The contextual inquiry study was conductedto gain insights into the needs and experiences of the targetusers, including interviews and questionnaires with emotionaleaters, patients undergoing obesity treatment, and healthcarepractitioners. Personas and the use-case scenario were derivedfrom these results and translated into the new ‘Denk je zèlf!’virtual coach, based on Dialectical Behaviour Therapy andexperience sampling measures to capture user experience andemotional state. The main contributions of this paper are: (a)combining holistic eHealth design, behavior chain analysis, anddialectic behaviour therapy in one personalised virtual mHealthcoaching application for emotional eaters; (b) applying emotionenrichedPersonas to guide the design; (c) the results of theinitial user evaluation. Preliminary results suggest that the‘Denk je zèlf!’ virtual coach is useful for helping the targetgroup. Future research will be aimed at further iterative (re)-design and evaluation, as well as development of the dialecticaldialogues for the virtual coach and content for the education andinstruction modules.

ACCURATE ALIGNMENT SYSTEM FOR PHOTONIC BASED BIOSENSOR CARTRIDGES

Photonic biosensors for medical diagnostics have been in development for some time. They have proven to show equal or better performance as compared to other techniques in terms of sensitivity, accuracy, and reliability. In order for companies to successfully introduce these sensor products on the market, they must also perform equal or better in price per test and usability. The price per test is to a large extent determined by the costs of the (disposable) cartridge containing the sensor chip and bioactive layer. If the active components can be left out of the cartridge a significant cost reduction can be obtained. However, this adds the challenge of coupling light from the source to the sensor chip inside the cartridge and back onto detectors. This coupling requires a positioning accuracy in the (sub-) micrometer regime. Here, we present a demonstrator system, which implements an passive alignment step followed by an active alignment procedure. The initial alignment is realized with high accuracy when placing a cartridge in an acceptor slot. This results in finding a “first light” state, which allows the active alignment to take over. Active alignment is then realized by moving the fiber by means of a set of actuators to the position with optimal coupling efficiency. A demonstrator was designed and manufactured to test the influence of several key parameters, such as the influence of production accuracy of the cartridges on the initial alignment. The resulting system has shown to comply with the requirements of ease of alignment along with full automation.

TriPleX-based micro ring resonators for food safety applications

Micro Ring Resonators (MRRs) have become the workhorse in photonics, both for data/telecomas well as bio-chemical sensing applications. In this contribution the use of MRRs as sensors for food-safety applications will be discussed.

Stakeholder engagement in maritime spatial planning : the efficacy of a serious game approach

The 2014 EU Directive on Maritime Spatial Planning (MSP) lays down obligations for the EU Member States to establish a maritime planning process, resulting in a maritime spatial plan by 2020. Consultation should be carried out with local, national and transnational stakeholders. Stakeholder engagement in MSP is complex because of the great number and diversity of maritime stakeholders and the unfamiliarity of some of these stakeholders with MSP and its potential impact. To facilitate stakeholder engagement in MSP, the 'MSP Challenge' table top strategy game was designed and played as part of several stakeholder events in different European countries. The authors study the efficacy of the game for stakeholder engagement. Background and evaluation data of nineteen game sessions with a total of 310 stakeholders with different backgrounds were collected through post-game surveys. Furthermore, the efficacy of the game for stakeholder engagement processes, organised by competent MSP authorities in Scotland and Belgium, is studied in more detail. The results show that the board game, overall, has been a very efficient and effective way of familiarising a great diversity of stakeholders with MSP and to create meaningful interaction and learning among stakeholders in formal planning processes. However, the case studies also show that contextual factors-the level of familiarity with MSP and participants' perception to sustainability-influences the efficacy of the game.