F.M. Brazier
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29 records found
1
Information sharing for coordinated self-organisation in disasters
An agent-based modelling study
This thesis puts forward a way to systematically study disaster information sharing from an actor-centered perspective through a combination agent-based modeling and empirical case study research. It does so by developing a methodology to create Agent-Based Models (ABMs) for studying disaster information sharing through qualitative inquiry (2). This approach is chosen given the challenges of gathering quantitative data about disaster response (e.g., through surveys and disaster simulation exercises).
The methodology was applied to the case of Jakarta to develop an empirical descriptive ABM. Findings from case study research and simulations with this ABM show that, when actors are unaware of the information they need (i.e., their needs are latent), delivering information on time to them becomes particularly challenging. Further, the results show that communities tend to address a higher portion of their information needs compared to professional responders (3,2). Communities’ highly localized situational awareness needs to be combined with a more global perspective concerning a disaster and its development to foster effective coordination. To achieve this, a two-way communication between professional response organizations and communities is essential.
The empirical ABM was then extended and abstracted from the Jakarta case to develop a theoretical ABM to study the emergence of Informational Boundary Spanners (IBSs); i.e. of actors that facilitate inter-group information exchange. Findings from simulations with this ABM suggest that individually learning who provides high-quality information is a mechanism that fosters the emergence of IBSs (4). This collectively intelligent behavior is contingent on stable information sources and a high number of trusted inter-group connections among communities and professional response organizations, especially at high levels of volatility (4).
The methodology proposed in this thesis provided the means to systematically study actor-centered disaster information sharing. First, the methodology was found to be rigorous in translating qualitative data into ABMs, and to provide a way to balance cross-case comparability with the flexibility to capture the nuances of specific cases (1,2). Second, the methodology was found to be versatile in developing both empirical and theoretical ABMs to study actor centered disaster information sharing, including mechanisms leading to the emergence of intergroup information exchange during disasters (2,4).
Future research will focus on exploring synergies among coordinated self-organization, collective intelligence, and resilience beyond the context of disaster response, concentrating on how collective learning, sensing, and remembering can foster adaptive, transformative, and absorptive resilience capacities in both the short and long term.
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This thesis puts forward a way to systematically study disaster information sharing from an actor-centered perspective through a combination agent-based modeling and empirical case study research. It does so by developing a methodology to create Agent-Based Models (ABMs) for studying disaster information sharing through qualitative inquiry (2). This approach is chosen given the challenges of gathering quantitative data about disaster response (e.g., through surveys and disaster simulation exercises).
The methodology was applied to the case of Jakarta to develop an empirical descriptive ABM. Findings from case study research and simulations with this ABM show that, when actors are unaware of the information they need (i.e., their needs are latent), delivering information on time to them becomes particularly challenging. Further, the results show that communities tend to address a higher portion of their information needs compared to professional responders (3,2). Communities’ highly localized situational awareness needs to be combined with a more global perspective concerning a disaster and its development to foster effective coordination. To achieve this, a two-way communication between professional response organizations and communities is essential.
The empirical ABM was then extended and abstracted from the Jakarta case to develop a theoretical ABM to study the emergence of Informational Boundary Spanners (IBSs); i.e. of actors that facilitate inter-group information exchange. Findings from simulations with this ABM suggest that individually learning who provides high-quality information is a mechanism that fosters the emergence of IBSs (4). This collectively intelligent behavior is contingent on stable information sources and a high number of trusted inter-group connections among communities and professional response organizations, especially at high levels of volatility (4).
The methodology proposed in this thesis provided the means to systematically study actor-centered disaster information sharing. First, the methodology was found to be rigorous in translating qualitative data into ABMs, and to provide a way to balance cross-case comparability with the flexibility to capture the nuances of specific cases (1,2). Second, the methodology was found to be versatile in developing both empirical and theoretical ABMs to study actor centered disaster information sharing, including mechanisms leading to the emergence of intergroup information exchange during disasters (2,4).
Future research will focus on exploring synergies among coordinated self-organization, collective intelligence, and resilience beyond the context of disaster response, concentrating on how collective learning, sensing, and remembering can foster adaptive, transformative, and absorptive resilience capacities in both the short and long term.
The Dutch drinking water companies face three major challenges regarding strategic investment decisions. First, the current sourcing and production capacity must be expanded to meet future drinking water demand. Second, there is a great demand for End-of-Life replacement of pipes in the drinking water infrastructure. Third, an investment challenge of a lesser financial magnitude but with an expected great impact on business operations is related to gaining operational control over the drinking water distribution network by integrating state-of-the-art sensor technology.
The outcomes of the internal decision-making processes of the drinking water utilities regarding these three strategic challenges will affect the stakeholders of the drinking water utilities. In addition, it offers possibilities for alignment with the goals of the other stakeholders. The main problem that this research seeks to address is a lack of engagement with drinking water utilities' stakeholders in the decision-making processes. A way to engage with stakeholders is by using Participatory Modelling, a technique that is not commonly applied by drinking water utilities.
These possibilities to engage stakeholders in the decision-making process are further backed by the development of new resources that have become available in recent years. These resources are new modelling techniques that have been applied in the field of drinking water research, in recent years. And, a novel perspective on multi-modelling e.g. the Multi-Model Ecology (MME) with Multi-Model Interface (MMI). In the current practice of research for Water Resource Management and other research for drinking water utilities, an MME and MMI (MME+I) have not yet materialised. This study aims to determine if an MME+I can benefit research for drinking water utilities and facilitate Participatory Modelling.
The Participatory Systems Design methodology (PSD methodology) is applied to generate a design for the conceptual model of the MME+I and the logical architecture for the MMI. A Proof of Concept (PoC) use case of model-coupling was applied. Here, an ABM model for Water Demand generates water demand patterns for an EPANET hydraulic model. This is a novel approach in hydraulic modelling for Dutch drinking water utility Oasen, since it introduces agents' behaviour from the ABM model to the modelling of hydraulic networks. It demonstrated that the outcomes of an ABM model affect the performance of the EPANET hydraulic model. In addition, It provided insight into how changes in water demand from scenario studies can affect strategic investment decisions for drinking water utilities.
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The Dutch drinking water companies face three major challenges regarding strategic investment decisions. First, the current sourcing and production capacity must be expanded to meet future drinking water demand. Second, there is a great demand for End-of-Life replacement of pipes in the drinking water infrastructure. Third, an investment challenge of a lesser financial magnitude but with an expected great impact on business operations is related to gaining operational control over the drinking water distribution network by integrating state-of-the-art sensor technology.
The outcomes of the internal decision-making processes of the drinking water utilities regarding these three strategic challenges will affect the stakeholders of the drinking water utilities. In addition, it offers possibilities for alignment with the goals of the other stakeholders. The main problem that this research seeks to address is a lack of engagement with drinking water utilities' stakeholders in the decision-making processes. A way to engage with stakeholders is by using Participatory Modelling, a technique that is not commonly applied by drinking water utilities.
These possibilities to engage stakeholders in the decision-making process are further backed by the development of new resources that have become available in recent years. These resources are new modelling techniques that have been applied in the field of drinking water research, in recent years. And, a novel perspective on multi-modelling e.g. the Multi-Model Ecology (MME) with Multi-Model Interface (MMI). In the current practice of research for Water Resource Management and other research for drinking water utilities, an MME and MMI (MME+I) have not yet materialised. This study aims to determine if an MME+I can benefit research for drinking water utilities and facilitate Participatory Modelling.
The Participatory Systems Design methodology (PSD methodology) is applied to generate a design for the conceptual model of the MME+I and the logical architecture for the MMI. A Proof of Concept (PoC) use case of model-coupling was applied. Here, an ABM model for Water Demand generates water demand patterns for an EPANET hydraulic model. This is a novel approach in hydraulic modelling for Dutch drinking water utility Oasen, since it introduces agents' behaviour from the ABM model to the modelling of hydraulic networks. It demonstrated that the outcomes of an ABM model affect the performance of the EPANET hydraulic model. In addition, It provided insight into how changes in water demand from scenario studies can affect strategic investment decisions for drinking water utilities.
A Maghreb-Iberian Green Hydrogen System
Network Simplex Method to compare design scenarios
In this idea the strong solar radiation in African countries is used to supply Europe with hydrogen The Desertec project, despite its promising potential, never materialized. Studies examining the reasons for its non-realization concur that the primary hindrance was not technological limitations but rather the complexities arising from multi-country politics (Schmitt, 2018; Scheer, 2012; Lilliestam & Ellenbeck, 2011). Scheer (2012) aptly described the plan as "practically impossible for obvious political, economic, and sociological reasons" (Schmitt, 2018). He emphasized that coordinating an energy system involving over forty different goverments, each with their own energy grids and territories for power transmission, inevitably led to unrealistic expectations.
In response, this research presents a system that addresses key barriers that impeded the Desertec project's success. By focusing on a specific geographical area with fewer national governments involved, integrated energy grids, and no energy transport crossing other countries' territories, the research proposes a solution to the challenges identified by Scheer (2012) and Schmitt (2018). Portugal and Spain, with an integrated energy grid and limited European energy grid connection, are considered, while Spain's existing natural gas pipelines to Algeria offer a paved path for hydrogen transport. With this more manageable consortium of four national governments and fewer complexities, the research seeks to evaluate various technological design options using a cost model to test their feasibility and impact on energy security. The aim of this research is to provide an answer to: How does a technologically feasible Maghreb-Iberian green hydrogen system (MIGHS) impact the Iberian energy cost and energy security? ...
In this idea the strong solar radiation in African countries is used to supply Europe with hydrogen The Desertec project, despite its promising potential, never materialized. Studies examining the reasons for its non-realization concur that the primary hindrance was not technological limitations but rather the complexities arising from multi-country politics (Schmitt, 2018; Scheer, 2012; Lilliestam & Ellenbeck, 2011). Scheer (2012) aptly described the plan as "practically impossible for obvious political, economic, and sociological reasons" (Schmitt, 2018). He emphasized that coordinating an energy system involving over forty different goverments, each with their own energy grids and territories for power transmission, inevitably led to unrealistic expectations.
In response, this research presents a system that addresses key barriers that impeded the Desertec project's success. By focusing on a specific geographical area with fewer national governments involved, integrated energy grids, and no energy transport crossing other countries' territories, the research proposes a solution to the challenges identified by Scheer (2012) and Schmitt (2018). Portugal and Spain, with an integrated energy grid and limited European energy grid connection, are considered, while Spain's existing natural gas pipelines to Algeria offer a paved path for hydrogen transport. With this more manageable consortium of four national governments and fewer complexities, the research seeks to evaluate various technological design options using a cost model to test their feasibility and impact on energy security. The aim of this research is to provide an answer to: How does a technologically feasible Maghreb-Iberian green hydrogen system (MIGHS) impact the Iberian energy cost and energy security?
Transfer care system performance in relation to resource scarcity
Implications for sustainability of the healthcare system performance
The dissertation first explores the requirements for conceptualizing applied game engagement, identified through an analysis of three applied gaming projects and an empirical study. It then uses these requirements to develop the Applied Games Engagement Model (AGEM). The AGEM posits that engagement is the process of focusing attention on a task and that attention can be purposefully directed through design.
The practical use of the AGEM is then explored by analyzing applied games. The theory is extended with relevant game design knowledge and applied to game design practice. This results in the Lens of Engagement for Applied Games, a unique way to view the design of an applied game.
Overall, this dissertation provides a comprehensive perspective on applied game engagement, emphasizing the role of attention and its relation to game design. It offers a practical and workable method of considering and discussing game engagement, which can be used by anyone creating or studying applied games. ...
The dissertation first explores the requirements for conceptualizing applied game engagement, identified through an analysis of three applied gaming projects and an empirical study. It then uses these requirements to develop the Applied Games Engagement Model (AGEM). The AGEM posits that engagement is the process of focusing attention on a task and that attention can be purposefully directed through design.
The practical use of the AGEM is then explored by analyzing applied games. The theory is extended with relevant game design knowledge and applied to game design practice. This results in the Lens of Engagement for Applied Games, a unique way to view the design of an applied game.
Overall, this dissertation provides a comprehensive perspective on applied game engagement, emphasizing the role of attention and its relation to game design. It offers a practical and workable method of considering and discussing game engagement, which can be used by anyone creating or studying applied games.
To reach the objective of the present research, an online survey was conducted among Chinese university students, which consists of GAD-7, PHQ-8, BIS/BAS, and PANAS questionnaires, followed by a writing task to describe their feelings about university life and one anxious moment happened in the university. Finally, demographics were assessed. All the sample data were exported into .csv format and imported into the software JASP (JASP, 2017). And the text of the writing task was uploaded on LIWC 2022 software (LIWC, 2022) package, and on the statistical software SPSS for additional analyses.
Through the experiment, the main Research Question and Sub-Research Questions were answered and all hypotheses were accepted. By reflecting on the whole thesis, some limitations of the current research were pointed out and some suggestions were proposed for future work. ...
To reach the objective of the present research, an online survey was conducted among Chinese university students, which consists of GAD-7, PHQ-8, BIS/BAS, and PANAS questionnaires, followed by a writing task to describe their feelings about university life and one anxious moment happened in the university. Finally, demographics were assessed. All the sample data were exported into .csv format and imported into the software JASP (JASP, 2017). And the text of the writing task was uploaded on LIWC 2022 software (LIWC, 2022) package, and on the statistical software SPSS for additional analyses.
Through the experiment, the main Research Question and Sub-Research Questions were answered and all hypotheses were accepted. By reflecting on the whole thesis, some limitations of the current research were pointed out and some suggestions were proposed for future work.
Mental disorders are now becoming prevalent illnesses. More than 1 billion people globally were affected by mental and addictive disorders in 2016, which caused 7% of all global burden of disease (Rehm & Shield, 2019). Among those mental disorders, anxiety disorders and depression rank at the top. GAD is the most common anxiety disorder form in primary care, and the burden caused by GAD is severe in terms of decreased work productivity and increased health care utilization. The present study pivoted around GAD, studying the intersection between motivational arousal, language, and sympathetic activation. A Randomized Controlled Trial (RCT) was designed and undertaken. The findings were satisfactory: Different arousal manipulation led to different language patterns of students. For example, negative (avoidance) arousal triggered fatigue-related words use. GAD inhibited motivational arousal effect on language, which extended the previous study that GAD people have ’diminished physiological flexibility’. Furthermore, sympathetic activation was observed during arousal manipulation, and the variability of Heart Rate (HR) and Heart Rate Variability (HRV) was significantly affected. Lastly, the ’diminished physiological flexibility’ of GAD people was also shown in the present study: GAD students experienced little change in Electrodermal Activity (EDA), HR, and HRV under motivational arousal manipulation ...
Mental disorders are now becoming prevalent illnesses. More than 1 billion people globally were affected by mental and addictive disorders in 2016, which caused 7% of all global burden of disease (Rehm & Shield, 2019). Among those mental disorders, anxiety disorders and depression rank at the top. GAD is the most common anxiety disorder form in primary care, and the burden caused by GAD is severe in terms of decreased work productivity and increased health care utilization. The present study pivoted around GAD, studying the intersection between motivational arousal, language, and sympathetic activation. A Randomized Controlled Trial (RCT) was designed and undertaken. The findings were satisfactory: Different arousal manipulation led to different language patterns of students. For example, negative (avoidance) arousal triggered fatigue-related words use. GAD inhibited motivational arousal effect on language, which extended the previous study that GAD people have ’diminished physiological flexibility’. Furthermore, sympathetic activation was observed during arousal manipulation, and the variability of Heart Rate (HR) and Heart Rate Variability (HRV) was significantly affected. Lastly, the ’diminished physiological flexibility’ of GAD people was also shown in the present study: GAD students experienced little change in Electrodermal Activity (EDA), HR, and HRV under motivational arousal manipulation
From the data it was confirmed that the VR induced stress in the participants. The data for heart rate, electrodermal activity, and heart rate variability showed an increase in stress level during the VR; Temperature did not show a difference. From the linear regression analysis done, no significant influence of stress on responses to moral dilemmas and a significant influence of personality type was confirmed.
The possibilities of VR in the field of psychology has the potential to improve research regarding stress. VR can be used as a coping method but also as a stress inducing activity. Future research should focus on discovering new possibilities for VR to be used. By improving the research about stress, an improvement of our lifes will follow. ...
From the data it was confirmed that the VR induced stress in the participants. The data for heart rate, electrodermal activity, and heart rate variability showed an increase in stress level during the VR; Temperature did not show a difference. From the linear regression analysis done, no significant influence of stress on responses to moral dilemmas and a significant influence of personality type was confirmed.
The possibilities of VR in the field of psychology has the potential to improve research regarding stress. VR can be used as a coping method but also as a stress inducing activity. Future research should focus on discovering new possibilities for VR to be used. By improving the research about stress, an improvement of our lifes will follow.
Together we make places
Designing connections in urban space
The Role Of The EU In Encouraging Sustainable Protein Consumption
An Agent-Based Model On The Effect Of Social Norms On Reducing Meat Consumption in the Netherlands
The research found that the most fitting technology adoption model when it comes to digital twins in the Dutch energy sector was the Technology-Organization-Environment (TOE) Framework with the following relevant (non-exhaustive) adoption variables: Complexity, Compatibility, Perception, Technological Characteristics, Availability, Organizational culture, Organizational size, Budget size, Incentives, Management support, Ab- sorptive capacity, (decision-maker’s) Demographics, Attitude towards technology, Regulations, Competitive pressure and Network effects. In addition, the overall perception of digital twins was found to be positive across the Dutch Energy sector, however, there was no consistent relationship established between organizational characteristics and the levels of digital twin perception. Similarly, the research suggested that organizational characteristics and absorptive capacity were not correlated. Nonetheless given the limitations of having a low number of study participants and the potential of bias amongst respondents towards their employer, the strength (significance) of these discovered relationships are indicative and should be further investigated in future research prior to making any additional claims that are conclusive. ...
The research found that the most fitting technology adoption model when it comes to digital twins in the Dutch energy sector was the Technology-Organization-Environment (TOE) Framework with the following relevant (non-exhaustive) adoption variables: Complexity, Compatibility, Perception, Technological Characteristics, Availability, Organizational culture, Organizational size, Budget size, Incentives, Management support, Ab- sorptive capacity, (decision-maker’s) Demographics, Attitude towards technology, Regulations, Competitive pressure and Network effects. In addition, the overall perception of digital twins was found to be positive across the Dutch Energy sector, however, there was no consistent relationship established between organizational characteristics and the levels of digital twin perception. Similarly, the research suggested that organizational characteristics and absorptive capacity were not correlated. Nonetheless given the limitations of having a low number of study participants and the potential of bias amongst respondents towards their employer, the strength (significance) of these discovered relationships are indicative and should be further investigated in future research prior to making any additional claims that are conclusive.
Determining effective evacuation strategies based on WiFi data in Buildings
An exploratory data-driven and agent-based evacuation modeling approach
Institutional enablers and barriers towards social resilience
A case study in Rotterdam Bospolder-Tussendijken
This study aims to determine how the extent to which formal and informal actors are resilient in interaction with one another can be determined. Therefore, a literature study was conducted that led to the development of the Institutional Resilience Analysis and Development (IRAD) framework, that is a modification of the Institutional Analysis and Development (IAD) framework that is complemented with variables influencing decision-making processes that are extracted from the literature on social resilience and adaptive governance.
The IRAD framework is applied to an exploratory case study with the Resilient Bospolder Tussendijken 2028 programme in the neighbourhood Bospolder-Tussendijken in Rotterdam as the research context. Hereby, desk research and semi-structured interviews were held with formal and informal actors to study interactions resulting from a conflict concerning the management of societal real estate in the neighborhood.
The application of the developed IRAD framework thereby identified both enablers and barriers for resilient interactions between formal and informal actors. Access to social networks has been identified as an enabler for resilient actions, whereas the lack of trust of residents in the municipality, lack of communication between formal and informal actors and a lack of a political base for new insights have been identified as barriers to resilient actions.
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This study aims to determine how the extent to which formal and informal actors are resilient in interaction with one another can be determined. Therefore, a literature study was conducted that led to the development of the Institutional Resilience Analysis and Development (IRAD) framework, that is a modification of the Institutional Analysis and Development (IAD) framework that is complemented with variables influencing decision-making processes that are extracted from the literature on social resilience and adaptive governance.
The IRAD framework is applied to an exploratory case study with the Resilient Bospolder Tussendijken 2028 programme in the neighbourhood Bospolder-Tussendijken in Rotterdam as the research context. Hereby, desk research and semi-structured interviews were held with formal and informal actors to study interactions resulting from a conflict concerning the management of societal real estate in the neighborhood.
The application of the developed IRAD framework thereby identified both enablers and barriers for resilient interactions between formal and informal actors. Access to social networks has been identified as an enabler for resilient actions, whereas the lack of trust of residents in the municipality, lack of communication between formal and informal actors and a lack of a political base for new insights have been identified as barriers to resilient actions.
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