This qualitative study explored emotional responses of two white Dutch student teachers during a Critical Race Theory (CRT) based course. Following Plutchik's (2001) classification of 32 emotions, the analysis of their weekly diaries resulted in the identification of 16 emotions. In both diaries similar emotional responses were identified. However, the analysis did not reveal a straightforward path these students emotionally went through. The number and types of emotional responses, both comfortable and uncomfortable, fluctuated weekly and occurred simultaneously in various combinations. Even when similar emotional responses were identified, students connected differently to the course content. This could be explained by different starting points both students had when entering the course. The findings add to past work by identifying a variety and complexity of emotional responses of white student teachers during a CRT based course and can be used to create course conditions to prepare teachers for contributing to anti-racist education.
Spatial variation in habitat riskiness has a major influence on the predator–prey space race. However, the outcome of this race can be modulated if prey shares enemies with fellow prey (i.e., another prey species). Sharing of natural enemies may result in apparent competition, and its implications for prey space use remain poorly studied. Our objective was to test how prey species spend time among habitats that differ in riskiness, and how shared predation modulates the space use by prey species. We studied a one‐predator, two‐prey system in a coastal dune landscape in the Netherlands with the European hare (Lepus europaeus) and European rabbit (Oryctolagus cuniculus) as sympatric prey species and red fox (Vulpes vulpes) as their main predator. The fine‐scale space use by each species was quantified using camera traps. We quantified residence time as an index of space use. Hares and rabbits spent time differently among habitats that differ in riskiness. Space use by predators and habitat riskiness affected space use by hares more strongly than space use by rabbits. Residence time of hare was shorter in habitats in which the predator was efficient in searching or capturing prey species. However, hares spent more time in edge habitat when foxes were present, even though foxes are considered ambush predators. Shared predation affected the predator–prey space race for hares positively, and more strongly than the predator–prey space race for rabbits, which were not affected. Shared predation reversed the predator–prey space race between foxes and hares, whereas shared predation possibly also released a negative association and promoted a positive association between our two sympatric prey species. Habitat riskiness, species presence, and prey species’ escape mode and foraging mode (i.e., central‐place vs. noncentral‐place forager) affected the prey space race under shared predation.
MULTIFILE
Recycling of plastics plays an important role to reach a climate neutral industry. To come to a sustainable circular use of materials, it is important that recycled plastics can be used for comparable (or ugraded) applications as their original use. QuinLyte innovated a material that can reach this goal. SmartAgain® is a material that is obtained by recycling of high-barrier multilayer films and which maintains its properties after mechanical recycling. It opens the door for many applications, of which the production of a scoliosis brace is a typical example from the medical field. Scoliosis is a sideways curvature of the spine and wearing an orthopedic brace is the common non-invasive treatment to reduce the likelihood of spinal fusion surgery later. The traditional way to make such brace is inaccurate, messy, time- and money-consuming. Because of its nearly unlimited design freedom, 3D FDM-printing is regarded as the ultimate sustainable technique for producing such brace. From a materials point of view, SmartAgain® has the good fit with the mechanical property requirements of scoliosis braces. However, its fast crystallization rate often plays against the FDM-printing process, for example can cause poor layer-layer adhesion. Only when this problem is solved, a reliable brace which is strong, tough, and light weight could be printed via FDM-printing. Zuyd University of Applied Science has, in close collaboration with Maastricht University, built thorough knowledge on tuning crystallization kinetics with the temperature development during printing, resulting in printed products with improved layer-layer adhesion. Because of this knowledge and experience on developing materials for 3D printing, QuinLyte contacted Zuyd to develop a strategy for printing a wearable scoliosis brace of SmartAgain®. In the future a range of other tailor-made products can be envisioned. Thus, the project is in line with the GoChem-themes: raw materials from recycling, 3D printing and upcycling.
Despite Dutch Hospitality industry’s significant economic value, employers struggle to attract and retain early career professionals at a time when tourism is forecasted to grow exponentially (Ruël, 2018). Universally, hospitality management graduates are shunning hospitality careers preferring other career paths; stimulating the Dutch Hospitality to find innovative ways of attracting and retaining early career professionals. Following calls from the Human Resource Management (HRM) community (Ehnert, 2009), we attribute this trend to personnel being depicted as rentable resources, driving profit’’ often at personal expense. For example, hotels primarily employ immigrants and students for a minimum wage suppressing salaries of local talent (Kusluvan, et al 2010, O’Relly and Pfeffer, 2010). Similarly, flattening organizational structures have eliminated management positions, placing responsibility on inexperienced shoulders, with vacancies commonly filled by pressured employees accepting unpaid overtime jeopardizing their work life balance (Davidson, et al 2010,). These HRM practices fuel attrition by exposing early career professionals to burnout (Baum et al, 2016, Goh et al, 2015, Deery and Jog, 2009). Collectively this has eroded the industry’s employer brand, now characterized by unsocial working hours, poor compensation, limited career opportunities, low professional standing, high turnover and substance abuse (Mooney et al, 2016, Gehrels and de Looij, 2011). In contrast, Sustainable HRM “enables an organizational goal achievement while simultaneously reproducing the human resource base over a long-lasting calendar time (Ehnert, 2009, p. 74).” Hence, to overcome this barrier we suggest embracing the ROC framework (Prins et al, 2014), which (R)espects internal stakeholders, embraces an (O)pen HRM approach while ensuring (C)ontinuity of economic and societal sustainability which could overcome this barrier. Accordingly, we will employ field research, narrative discourse, survey analysis and quarterly workshops with industry partners, employees, union representatives, hotel school students to develop sustainable HRM practices attracting and retaining career professionals to pursue Dutch hospitality careers.
Door de grote ontwerpvrijheid van 3D printen heeft het de belofte om echte maatwerkproducten te creëren. Zo biedt het grote kansen voor het maken van poreuze, en dus lichtgewicht, structuren. In vergelijking met traditionele schuimen, waar de porositeit moeilijk te beïnvloeden is, kan met 3D printen de poreuze structuur geheel gecontroleerd worden geïntroduceerd en gevarieerd binnen een object. Dit is zeer interessant voor sectoren als (i) zorg, (ii) bouw en (iii) automotive industrie omdat (i) het kansen biedt protheses/implantaten te maken die het (vaak inhomogene) natuurlijk weefsel nabootsen; (ii/iii) lichtgewicht, stijve constructies gemaakt kunnen worden waarbij de massa wordt geminimaliseerd wat leidt tot lagere materiaalkosten binnen de bouw en minder brandstofgebruik bij transport. Vergelijkbaar met de opkomst van spuitgieten in de jaren ’70-’80, is de kennis rondom 3D printen nog gefragmenteerd. Om hoogwaardige functionele producten te ontwikkelen is het nodig om kennis over materiaalkeuze, printstrategie en microscopisch en macroscopisch ontwerp te koppelen. In dit project werken ontwerpers, machinebouwers en materiaaldeskundigen van bedrijven en kennisinstituten samen aan de uitdaging: Hoe kunnen unieke, functionele en hoogwaardige lichtgewicht producten verkregen worden via 3D printen? Door het printen van diverse polymere materialen met verschillende printstrategieën en microstructuren wordt nieuwe kennis verkregen omtrent eigenschappen als sterkte, zachtheid, warmte-regulerend vermogen en de onderlinge werking/samenhang. Vervolgens zal deze kennis toegepast worden in een drietal Use Cases: o Printen van duurzame comfortabele borstprotheses. Naast pasvorm zijn eigenschappen als zachtheid, warmte- en vochtregulering en gewicht belangrijk voor het draagcomfort. o Printen van innovatieve gevelelementen die voldoende sterk en isolerend moeten zijn. Lichtgewicht biedt hier het voordeel dat het de bouwprofessionals ontlast en transportkosten spaart. o Printen van een lichtgewicht auto om brandstof te besparen. Als demonstrator is gekozen voor het printen van een raceauto die voldoet aan de veiligheidseisen van Formula Student races.
