Antigene verwantschap van parainfluenza-virussen

Contains fulltext : mmubn000001_238695964.pdf (publisher's version ) (Open Access)Promotor : J. van der Veen75 p

Direct and comparative visualization techniques for HARDI Data

DWI is an MRI imaging technique used to gain information concerning the diffusion process in tissue. Using DTI techniques, a diffusion profile can be constructed for fiber tract analysis. Recently developed HARDI techniques increase the detail to visualization on the process of diffusion. While HARDI reconstruction methods are used to model the underlying diffusion process, the HARDI signal attenuation data can be used for a better understanding of noise in DWI data. This project addresses the direct visualization of HARDI data without any intermediate processing steps between acquisition and visualization. We present new glyph shapes for direct and comparative visualization of HARDI data using the signal attenuation or ADC and a multiple linked views layout. We developed new difference metrics to create a complete comparative visualization pipeline to identify and explore areas of interest. Evaluation of our developed methods by means of a case study, indicates the techniques to be a valued addition. The comparative visualization allows for quick identification of areas of interest. The glyph representation allows for rapid exploration of local diffusion data.Computer GraphicsMediamaticsElectrical Engineering, Mathematics and Computer Scienc

Where You End and I Begin: Cognition and Continuity in Experimental Improvised Music and Dance

When we improvise together in music and dance, our bodies, instruments, and environments not only interact; they become mutually dependent. A bassist's shoulder shifts, bow slides, instrument rings . . . vibrations bounce off the walls, reach the dancer's inner ear, filling the lungs, lunging toward the bassist's shoulder: these sounds, movements, spaces, and perceptions form a real-time feedback loop that blurs where you end and I begin. Recent research in embodied and situated cognition by scholars such as Clark and Chalmers (1998), Gallagher (2005, 2007), Hutchins (1995), Noë (2004), and Suchman (2007) provides a theoretical foundation for formalizing this continuity. This literature has inspired us to reconsider how cognitive processes we tacitly know within a specific aesthetic framework are in fact at work throughout everyday life. In four videos taken from an hour-long studio session recorded in February 2012, we explore these processes once again in our own practice, and offer reflections in the form of program notes that invite the audience to perform these connections themselves

Are patients' preferences regarding the place of treatment heard and addressed at the point of referral: an exploratory study based on observations of GP-patient consultations

Contains fulltext : 125245.pdf (publisher's version ) (Open Access)BACKGROUND: Today, in several north-western European countries, patients are encouraged to choose, actively, a healthcare provider. However, patients often visit the provider that is recommended by their general practitioner (GP). The introduction of patient choice requires GPs to support patients to be involved, actively, in the choice of a healthcare provider. We aim to investigate whether policy on patient choice is reflected in practice, i.e. what the role of the patient is in their choices of healthcare providers at the point of referral and to what extent GPs' and patients' healthcare paths influence the role that patients play in the referral decision. METHODS: In 2007-2008, we videotaped Dutch GP-patient consultations. For this study, we selected, at random, 72 videotaped consultations between 72 patients and 39 GPs in which the patient was referred to a healthcare provider. These were analysed using an observation protocol developed by the researchers. RESULTS: The majority of the patients had little or no input into the choice of a healthcare provider at the point of referral by their GP. Their GPs did not support them in actively choosing a provider and the patients often agreed with the provider that the GP proposed. Patients who were referred for diagnostic purposes seem to have had even less input into their choice of a provider than patients who were referred for treatment. CONCLUSIONS: We found that the GP chooses a healthcare provider on behalf of the patient in most consultations, even though policy on patient choice expects from patients that they choose, actively, a provider. On the one hand, this could indicate that the policy needs adjustments. On the other hand, adjustments may be needed to practice. For instance, GPs could help patients to make an active choice of provider. However, certain patients prefer to let their GP decide as their agent. Even then, GPs need to know patients' preferences, because in a principal-agent relationship, it is necessary that the agent is fully informed about the principal's preferences