The lack of in-depth understanding of the seismic behavior and ductility of precast concrete structures makes it difficult to reach to ductility demand which could be exhibited during an earthquake. The limitations are mainly related to the beam-to-column connections as the main load transfer paths. Two distinct exterior beam-column connections made of normal-strength concrete are investigated experimentally. Both dry and wet type installment techniques are used in the industrial type joints while the residential type joints are wet connections. The specimens are subjected cyclic displacement reversals in order to obtain information on strength, stiffness and ductility characteristics of the connection details. The preliminary design of the joints has been updated during the tests based on the damages observed, thus a set of improved specimens have also been built and tested, and a relatively better performance is obtained expectedly. The industrial and residential types of connections showed stable load-displacement cycles with high energy dissipation up to structural drift of 2%, though a significant level of pinching and deterioration of the critical section have occurred at around 3% drift level. The tested specimens have been numerically modeled to calibrate the analytical tools, and a satisfactory approximation has been obtained between experimental and numerical results.
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In recent years, the number of human-induced earthquakes in Groningen, a large gas field in the north of the Netherlands, has increased. The majority of the buildings are built by using unreinforced masonry (URM), most of which consists of cavity (i.e. two-leaf) walls, and were not designed to withstand earthquakes. Efforts to define, test and standardize the metal ties, which do play an important role, are valuable also from the wider construction industry point of view. The presented study exhibits findings on the behavior of the metal tie connections between the masonry leaves often used in Dutch construction practice, but also elsewhere around the world. An experimental campaign has been carried out at Delft University of Technology to provide a complete characterization of the axial behavior of traditional connections in cavity walls. A large number of variations was considered in this research: two embedment lengths, four pre-compression levels, two different tie geometries, and five different testing protocols, including monotonic and cyclic loading. The experimental results showed that the capacity of the connection was strongly influenced by the embedment length and the geometry of the tie, whereas the applied pre-compression and the loading rate did not have a significant influence.
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Habitual behavior is often hard to change because of a lack of self-monitoring skills. Digital technologies offer an unprecedented chance to facilitate self-monitoring by delivering feedback on undesired habitual behavior. This review analyzed the results of 72 studies in which feedback from digital technology attempted to disrupt and change undesired habits. A vast majority of these studies found that feedback through digital technology is an effective way to disrupt habits, regardless of target behavior or feedback technology used.
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In patients with COPD, self-management skills are important to reduce the impact of exacerbations. However, both detection and adequate response to exacerbations appear to be difficult for some patients. Little is known about the underlying process of exacerbation-related self-management. Therefore, the objective of this study was to identify and explain the underlying process of exacerbation-related self-management behavior. A qualitative study using semi-structured in-depth interviews was performed according to the grounded theory approach, following a cyclic process in which data collection and data analysis alternated. Fifteen patients (male n=8; age range 59–88 years) with mild to very severe COPD were recruited from primary and secondary care settings in the Netherlands, in 2015.
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There is increasing interest in the use of experiential knowledge and the development of experiential expertise in mental health. Yet, little is known about how best to use this expertise in the role of a psychiatrist. This study aims to gain insight into the concerns of psychiatrists using their lived experiences with mental health distress as a source of knowledge for patients, colleagues and themselves. Eighteen psychiatrists with lived experience as patients in mental health care were interviewed with a semi-structured questionnaire. The interviews were analyzed using qualitative narrative thematic analysis. The majority of the respondents use their lived experience implicitly in the contact with patients, which makes the contact more equal and strengthens the treatment relationship. When explicitly using experiential knowledge in the contact with patients, thought should be given at forehand to its purpose, timing and dosage. Recommendations are that the psychiatrist should be able to reflect on his/her lived experience from a sufficient distance and should take patient factors into account. When working in a team, it is advisable to discuss the use of experiential knowledge in advance with the team. An open organizational culture facilitates the use of experiential knowledge and safety and stability in the team are vital. Current professional codes do not always offer the space to be open. Organizational interests play a role, in the degree of self-disclosure as it can lead to conflict situations and job loss. Respondents unanimously indicated that the use of experiential knowledge in the role of a psychiatrist is a personal decision. Self-reflection and peer supervision with colleagues can be helpful to reflect on different considerations with regard to the use of experiential knowledge. Having personal lived experiences with a mental disorder affects the way psychiatrists think about and performs the profession. The perception of psychopathology becomes more nuanced and there seems to be an increased understanding of the suffering. Even though harnessing experiential knowledge makes the doctor-patient relationship more horizontal it remains unequal because of the difference in roles. However, if adequately used, experiential knowledge can enhance the treatment relationship.
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Empirical studies in the creative arts therapies (CATs; i.e., art therapy, dance/movement therapy, drama therapy, music therapy, psychodrama, and poetry/bibliotherapy) have grown rapidly in the last 10 years, documenting their positive impact on a wide range of psychological and physiological outcomes (e.g., stress, trauma, depression, anxiety, and pain). However, it remains unclear how and why the CATs have positive effects, and which therapeutic factors account for these changes. Research that specifically focuses on the therapeutic factors and/or mechanisms of change in CATs is only beginning to emerge. To gain more insight into how and why the CATs influence outcomes, we conducted a scoping review (Nstudies = 67) to pinpoint therapeutic factors specific to each CATs discipline, joint factors of CATs, and more generic common factors across all psychotherapy approaches. This review therefore provides an overview of empirical CATs studies dealing with therapeutic factors and/or mechanisms of change, and a detailed analysis of these therapeutic factors which are grouped into domains. A framework of 19 domains of CATs therapeutic factors is proposed, of which the three domains are composed solely of factors unique to the CATs: “embodiment,” “concretization,” and “symbolism and metaphors.” The terminology used in change process research is clarified, and the implications for future research, clinical practice, and CATs education are discussed.
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The aim of this study is to clarify how pre-service teachers perceive mentor teachers' use of mentoring skills. Sixty stimulated-recall interviews were conducted, each in connection with a previously recorded mentoring dialogue. A quantitative analysis showed that six types of mentoring skills appeared to be perceived by pre-service teachers as offering emotional support and five others as offering task assistance. After mentor teachers were trained in mentoring skills, shifts in their frequencies of use of distinct skills, as observed by independent raters, corresponded to a considerable extent with shifts in frequencies of pre-service teacher perceptions of mentor teachers' mentoring behaviour.
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The impact communities of practice (CoPs) make can be understood in several different ways, depending on which theoretical perspective is used. For example, CoPs have been studied from a learning-theory perspective, from organizational development theory, and from a small-group theory. To understand the effects of participating in a CoP on individuals, groups or the organization in which they function, we could use traditional learning theory, organizational learning theory, information-processing theory or small-group process theory, etc. Or we could look at the internal processes of CoPs; the output they generate, or employ a synthesized view. CoPs can also be seen as impacting different actors in the organization in which they operate; individuals, groups or the whole organization. This means, for example, that we could look at CoPs from an organizational learning perspective to see how CoPs impact strategy development or renewal. At the level of the group, we could look at how CoPs lead to increased group performance and how that in turn leads to a higher output of knowledge products. And as learning is one of the key processes in a CoP, an important aspect of we need to study is how the individual learns, as well as what the individual learns. The complexity of impact a CoP can have on the diverse actors requires a pluralistic and multiperspective approach. However, a review of the literature showed no comprehensive model that neither integrates these different levels of impact nor employs multiple theoretical perspectives. Furthermore, most models of measurement or assessment use traditional types of output measurement, such as ROI, or anecdotal evidence that the CoP has improved organizational capability. Much like any human resource development initiative – which is the perspective of CoPs we take in this paper – there has been no real attempt to develop measures for assessing impact. We try to fill this gap by presenting a comprehensive, multidisciplinary, conceptual model that approaches measuring certain aspects a CoP has on individuals, groups and organizations.
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This paper lays the groundwork for building a communication model that will help cultivate communities of practice through the use of strategic communications. Theoretical models describing communities of practice in organizational knowledge generation typically have three main actors; the individual, the community and the organization. These models usually mention the necessity for their interaction, but are never specific about how this should be done. Furthermore, there has been little research on how communication processes can affect the relationship between the three actors in the model. This paper proposes that the interaction between the community, the individual members of the community and the organization must be facilitated and promoted through specific strategic communications in order to guarantee the success of the community. Topics such as knowledge sharing, knowledge building and organizational learning are looked at through a communication perspective.
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Inaugural lecture, delivered upon public acceptance of the endowed professorship in Professionalisation of Nursing and Care in Elderly Care by Prof. Dr. Robbert J.J. Gobbens at Tilburg University on 29 September 2023.
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