This study evaluates the potential of Unmanned Aerial Vehicle-based Ground-Penetrating Radar (UAV-GPR) for identifying buried features related to a suspected World War II (WWII) hiding place near Bornerbroekseweg, the Netherlands. The survey area is an active farmland field with limited surface indicators and partially documented historical significance. A total of six UAV flight lines and four ground-based GPR paths were conducted to cover the site. Subsurface anomalies were identified at depths between approximately 0.2 and 1.5 m. In particular, Flight 6 revealed a near-surface reflection at 0.2–0.4 m, whereas Flight 4 showed a deeper horizontal anomaly at around 1.2–1.5 m. Ground-based Path 3 supported these findings with continuous horizontal reflections distinct from natural stratigraphy. The integration of UAV and ground-based data enabled full-site coverage and localized resolution, supporting the identification of areas warranting further archaeological investigation. The results demonstrate the applicability of UAV-GPR for non-invasive prospection in rural historical sites with uncertain spatialrecords and suggest its value for informing targeted excavations.
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Improvisational drama techniques (IDTs) can benefit foreign language (FL) learners by offering them an engaging way to practise speaking while hiding behind the safety of a character mask. This study aimed to glean perceptions toward and experiences with IDTs among FL student teachers, as well as training needs related to integrating IDTs as a pedagogical tool. Foreign language student teachers at a Dutch university who had not received IDT-training took part in a questionnaire (n = 197). Former student teachers who had taken such a course in drama were interviewed in depth (n = 9). Almost all student teachers - both those who had and had not received IDT-training-shared the belief that IDTs have added pedagogical value. The majority of student teachers who had not had drama training indicated that they did not often implement IDTs in their classes. Former student teachers who had IDT-training continued to integrate IDTs with some regularity. Both groups provided valuable input on the components that should be included in a future IDT-training module for both student teachers and in-service teachers. Our findings give rise to the hypothesis that training can play a key role in galvanizing teachers to implement IDTs, and allow us to formulate design criteria for an innovative training module.
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Introduction: Losing items is a time-consuming occurrence in nursing homes that is ill described. An explorative study was conducted to investigate which items got lost by nursing home residents, and how this affects the residents and family caregivers. Method: Semi-structured interviews and card sorting tasks were conducted with 12 residents with early-stage dementia and 12 family caregivers. Thematic analysis was applied to the outcomes of the sessions. Results: The participants stated that numerous personal items and assistive devices get lost in the nursing home environment, which had various emotional, practical, and financial implications. Significant amounts of time are spent on trying to find items, varying from 1 hr up to a couple of weeks. Numerous potential solutions were identified by the interviewees. Discussion: Losing items often goes together with limitations to the participation of residents. Many family caregivers are reluctant to replace lost items, as these items may get lost again.
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Abusive online behaviors occur at a large scale on all social media, and have dire consequences for their victims. Although the problem is largely acknowledged, technological solutions remain limited to detecting and hiding abusive comments. More can be done to address abusers themselves. We propose to investigate the potential of conversational technologies to dialogue with abusers. In this problem description paper, we outline directions for studying the effectiveness dialogue strategies, e.g., to educate or deter abusers, or keep them busy with chatbots thus limiting the time they spend perpetuating abuses.
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Improvisational drama techniques (IDTs) can benefit foreign language (FL) learners by offering them an engaging way to practise speaking while hiding behind the safety of a character mask. This study aimed to glean perceptions toward and experiences with IDTs among FL student teachers, as well as training needs related to integrating IDTs as a pedagogical tool. Foreign language student teachers at a Dutch university who had not received IDT-training took part in a questionnaire (n = 197). Former student teachers who had taken such a course in drama were interviewed in depth (n = 9). Almost all student teachers - both those who had and had not received IDT-training-shared the belief that IDTs have added pedagogical value. The majority of student teachers who had not had drama training indicated that they did not often implement IDTs in their classes. Former student teachers who had IDT-training continued to integrate IDTs with some regularity. Both groups provided valuable input on the components that should be included in a future IDTtraining module for both student teachers and in-service teachers. Our findings give rise to the hypothesis that training can play a key role in galvanizing teachers to implement IDTs, and allow us to formulate design criteria for an innovative training module.
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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.
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The real-time simulation of human crowds has many applications. In a typical crowd simulation, each person ('agent') in the crowd moves towards a goal while adhering to local constraints. Many algorithms exist for specific local ‘steering’ tasks such as collision avoidance or group behavior. However, these do not easily extend to completely new types of behavior, such as circling around another agent or hiding behind an obstacle. They also tend to focus purely on an agent's velocity without explicitly controlling its orientation. This paper presents a novel sketch-based method for modelling and simulating many steering behaviors for agents in a crowd. Central to this is the concept of an interaction field (IF): a vector field that describes the velocities or orientations that agents should use around a given ‘source’ agent or obstacle. An IF can also change dynamically according to parameters, such as the walking speed of the source agent. IFs can be easily combined with other aspects of crowd simulation, such as collision avoidance. Using an implementation of IFs in a real-time crowd simulation framework, we demonstrate the capabilities of IFs in various scenarios. This includes game-like scenarios where the crowd responds to a user-controlled avatar. We also present an interactive tool that computes an IF based on input sketches. This IF editor lets users intuitively and quickly design new types of behavior, without the need for programming extra behavioral rules. We thoroughly evaluate the efficacy of the IF editor through a user study, which demonstrates that our method enables non-expert users to easily enrich any agent-based crowd simulation with new agent interactions.
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Author supplied: "Abstract—Software architecture compliance checking (SACC) is an approach to monitor the consistency between the intended and the implemented architecture. In case of static SACC, the focus is mainly on the detection of dependencies that violate architectural relation rules. Interpretation of reported violations may be cumbersome, since the violations need to be connected to architectural resolutions and targeted qualities such as maintainability and portability. This paper describes an SACC case study which shows that inclusion of different types of rules in the SACC process enhances reasoning on architecture violations, especially if a rule type is related to specific architectural pattern. The SACC is performed with HUSACCT, an SACC-tool that provides rich sets of module and rule types in support of patterns such as layers, facade, and gateway. The case system is a governmental system developed in C#, which follows the .NET common application architecture. Even though the system appeared to be well-structured, the SACC revealed that 10 of the 17 architectural rules were violated."
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The research project In search of pedagogical sensitivity is executed from the research department of the knowledge circle renewing methods and didactics for teacher education and training of the Hogeschool Utrecht in the Netherlands under supervision of Hans Jansen (associated professor of the Hogeschool Utrecht - chair: renewing methods and didactics for teacher education and training) by Karel Mulderij, Renée van der Linde and Loes Houweling (all senior teachers and senior researchers of the Hogeschool Utrecht and members of the knowledge circle renewing methods and didactics for teacher education and training) with assistance of 25 students (teachers) studying in a three year Master course Ecological Pedagogy.
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Despite increased interest in applying psychological theory to the practice of designing behavioral change interventions, design professionals often lack adequate knowledge and resources to do so. In this paper, we present a tool to help professionals in the creative industries design evidence-based health interventions, the Persuasive by Design model. This paper describes the contents and application of the model as well as plans for further development and testing.
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