''This paper aims to analyze the behavior of experimentally tested unreinforced masonry walls subjected to in-plane loading. Monotonic load analyses are conducted using FEM and AEM modeling approaches. The models presented here are based on the assumption of both unit and mortar joints modeled as solid elements, which behave nonlinearly. Therefore, the damages occur along the mortar and brick in the analyses. The FEM analysis is carried out by using LS-DYNA, and the AEM analysis is carried out by using ELS (Extreme Loading for Structures). Experimental studies of a masonry wall in-plane loading conditions are used for verification against numerical models. Analysis of the tests performed on masonry shear walls by Raijmakers and Vermeltfoort within the CUR project is carried out. The presented analyses methods can be applied to other unit and mortar compositions. Computational results from this study provide a monotonic load-deformation curve, which then is compared to the envelope of the horizontal load-deformation curves that are experimentally obtained. The agreement of each method with the experimental results, in terms of strength, stiffness and ductility, as well as the predicted damage mechanisms, are discussed.''
In this paper, I explored how to research a sensitive topic such as gossip in organizations and used a narrative approach to illustrate the methodological and ethical issues that come up when considering a variety of research methods. I first attempted to conduct an ethnographic research on a project group from a Dutch university undergoing a major change. At the very beginning of the project, as a participant observer, I struggled to remain an outsider, or a “fly on the wall.” But as issues of power came into play and access became increasingly problematic, I moved towards the role of an “observing participant.” Therefore, in order to research gossip and some of the hidden dimensions of organizational life, I turned to auto- and self-ethnography as a way to regain access and greater authenticity. While following this route presented its share of ethical and methodological issues, it also provided valuable insights that could be of value to researchers attempting to study sensitive topics such as gossip in organizations. https://nsuworks.nova.edu/tqr/vol23/iss7/18 LinkedIn: https://www.linkedin.com/in/dominiquedarmon/
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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.
The postdoc candidate, Giuliana Scuderi, will strengthen the connection between the research group Biobased Buildings (BB), (collaboration between Avans University of Applied Sciences and HZ University of Applied Sciences (HZ), and the Civil Engineering bachelor programme (CE) of HZ. The proposed research aims at deepening the knowledge about the mechanical properties of biobased materials for the application in the structural and infrastructural sectors. The research is relevant for the professional field, which is looking for safe and sustainable alternatives to traditional building materials (such as lignin asphalt, biobased panels for bridge constructions, etc.). The study of the mechanical behaviour of traditional materials (such as concrete and steel) is already part of the CE curriculum, but the ambition of this postdoc is that also BB principles are applied and visible. Therefore, from the first year of the programme, the postdoc will develop a biobased material science line and will facilitate applied research experiences for students, in collaboration with engineering and architectural companies, material producers and governmental bodies. Consequently, a new generation of environmentally sensitive civil engineers could be trained, as the labour market requires. The subject is broad and relevant for the future of our built environment, with possible connections with other fields of study, such as Architecture, Engineering, Economics and Chemistry. The project is also relevant for the National Science Agenda (NWA), being a crossover between the routes “Materialen – Made in Holland” and “Circulaire economie en grondstoffenefficiëntie”. The final products will be ready-to-use guidelines for the applications of biobased materials, a portfolio of applications and examples, and a new continuous learning line about biobased material science within the CE curriculum. The postdoc will be mentored and supervised by the Lector of the research group and by the study programme coordinator. The personnel policy and job function series of HZ facilitates the development opportunity.
In the context of global efforts to increase sustainability and reduce CO2 emissions in the chemical industry, bio-based materials are receiving increasing attention as renewable alternatives to petroleum-based polymers. In this regard, Visolis has developed a bio-based platform centered around the efficient conversion of plant-derived sugars to mevalonolactone (MVL) via microbial fermentation. Subsequently, MVL is thermochemically converted to bio-monomers such as isoprene and 3-methyl-1,5-pentane diol, which are ultimately used in the production of polymer materials. Currently, the Visolis process has been optimized to use high-purity, industrial dextrose (glucose) as feedstock for their fermentation process. Dutch Sustainable Development (DSD) has developed a direct processing technology in which sugar beets are used for fermentation without first having to go through sugar extraction and refinery. The main exponent of this technology is their patented Betaprocess, in which the sugar beet is essentially exposed to heat and a mild vacuum explosion, opening the cell walls and releasing the sugar content. This Betaprocess has the potential to speed up current fermentation processes and lower feedstock-related costs. The aim of this project is to combine aforementioned technologies to enable the production of mevalonolactone using sucrose, present in crude sugar beet bray after Betaprocessing. To this end, Zuyd University of Applied Sciences (Zuyd) intends to collaborate with Visolis and DSD. Zuyd will utilize its experience in both (bio)chemical engineering and fermentation to optimize the process from sugar beet (pre)treatment to product recovery. Visolis and DSD will contribute their expertise in microbial engineering and low-cost sugar production. During this collaboration, students and professionals will work together at the Chemelot Innovation and Learning Labs (CHILL) on the Brightlands campus in Geleen. This collaboration will not only stimulate innovation and sustainable chemistry, but also provides starting professionals with valuable experience in this expanding field.
Behandel- en nazorgtrajecten binnen de oncologische zorg duren meestal lang en kennen veel gespreksmomenten tussen zorgprofessionals en patiënten. Aanleiding voor het project ‘Care for Sexuality’ is dat de gesprekken gedurende een traject vooral gaan over de diagnose en de behandeling en dat zorgen over seksualiteit en intimiteit nauwelijks aan bod komen, ook niet in het nazorgtraject. Oncologische zorgprofessionals erkennen het belang van dergelijke gesprekken over seksualiteit en intimiteit, maar geven aan het lastig te vinden om het gesprek hierover te voeren. De zorgprofessionals sluiten daarbij ook onvoldoende aan op de informatiebehoefte, emoties of zorgen van de patiënt. Dit is niet zo vreemd, want in het medisch onderwijs ligt de nadruk op (bio)medische kennis en lijken communicatieve en relationele vaardigheden het onderspit te delven (Epner & Baile, 2014; Walling, et al., 2008). Hierdoor wordt het opbouwen van een goede verstandhouding tussen zorgverlener en patiënt belemmerd, en worden patiënten minder geholpen in het nemen van weloverwogen beslissingen in hun behandel- en nazorgtraject. Het is daarom belangrijk dat de zorgen van patienten over seksualiteit onderdeel worden van het gesprek. Bestaande en recent ontwikkelde leermiddelen op dit gebied geven wel handreikingen voor het agenderen van het thema, maar geven onvoldoende antwoord op de vraag hoe interacties over intimiteit en seksualiteit tussen zorgprofessionals en kankerpatiënten daadwerkelijk verlopen en wat faciliterende en belemmerende gespreksfactoren daarbij zijn. Het doel van het beoogde project is drieledig: (1) Het gesprek over seksualiteit en intimiteit in de spreekkamer mogelijk maken en op gang brengen bij zorgprofessionals in de oncologie en hun patiënten; (2) Het ontwerpen van een leeromgeving voor zorgprofessionals waarin gesprekszorgen en realistische gespreksscenario’s verwerkt zijn, zodat de zorgprofessional bewust wordt van de gespreksgevoeligheden en daarop kan anticiperen en (3) Het verkennen van de vorm waarin de leeromgeving het beste in de praktijk aangeboden kan worden.
