This article focuses on the role of the artistic process in connecting to the natural environment. In my research I have explored what participants experience and learn when they engage in different types of arts-based environmental education (AEE) practices that I have facilitated. The premise of AEE is that efforts to learn about our (natural) environment can effectively take their starting point in an artistic activity, usually conducted in groups. I found that, on the whole, two major orientations can be distinguished. One starts from the point of aesthetic sensibility: the tuning in with the senses, or with ‘a new organ of perception’ (Goethe), in order to perceive ‘the more than human’ with fresh new eyes. This tradition can be traced back (but is by no means limited) to the Romantic Movement. Art in this context may help to amplify the receptivity of the senses and strengthen a sense of connectedness to the natural world. The other major orientation in seeking bridges between nature and art builds on a view of artistic process as leading to unexpected outcomes and ‘emergent properties’. The fundamentally singular experience of making a work of art may evoke an aesthetic object that becomes a ‘self-sufficient, spiritually breathing subject’ (Kandinsky). The artwork can be spontaneously generative and multilayered with meanings, some of which may even be ambiguous and paradoxical. But perhaps more importantly: it can catch the participant of an AEE activity by surprise, overwhelm him or her as ‘coming from behind one’s back’. The element of improvisation, of taking in the new and unanticipated and accommodating for it, is the core quality here. These two orientations, when practiced as part of AEE, have implications on how we relate to nature through art. In the closing of this article I address the question of whether it is possible to bridge the dualism between the two orientations.
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Objective: In myocardial perfusion single-photon emission computed tomography (SPECT), abdominal activity often interferes with the evaluation of perfusion in the inferior wall, especially after pharmacological stress. In this randomized study, we examined the effect of carbonated water intake versus still water intake on the quality of images obtained during myocardial perfusion images (MPI) studies. Methods: A total of 467 MIBI studies were randomized into a carbonated water group and a water group. The presence of intestinal activity adjacent to the inferior wall was evaluated by two observers. Furthermore, a semiquantitative analysis was performed in the adenosine subgroup,using a count ratio of the inferior myocardial wall and adjacent abdominal activity. Results: The need for repeated SPECT in the adenosine studies was 5.3 % in the carbonated water group versus 19.4 % in the still water group (p = 0.019). The inferior wall-to-abdomen count ratio was significantly higher in the carbonated water group compared to the still water group (2.11 ± 1.00 vs. 1.72 ± 0.73, p\0.001). The effect of carbonated water during rest and after exercise was not significant. Conclusions: This randomized study showed that carbonated water significantly reduced the interference of extra-cardiac activity in adenosine SPECT MPI. Keywords: Extra-cardiac radioactivity, Myocardial SPECT, Image quality enhancement, Carbonated water
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Standard SARS-CoV-2 testing protocols using nasopharyngeal/throat (NP/T) swabs are invasive and require trained medical staff for reliable sampling. In addition, it has been shown that PCR is more sensitive as compared to antigen-based tests. Here we describe the analytical and clinical evaluation of our in-house RNA extraction-free saliva-based molecular assay for the detection of SARS-CoV-2. Analytical sensitivity of the test was equal to the sensitivity obtained in other Dutch diagnostic laboratories that process NP/T swabs. In this study, 955 individuals participated and provided NP/T swabs for routine molecular analysis (with RNA extraction) and saliva for comparison. Our RT-qPCR resulted in a sensitivity of 82,86% and a specificity of 98,94% compared to the gold standard. A false-negative ratio of 1,9% was found. The SARS-CoV-2 detection workflow described here enables easy, economical, and reliable saliva processing, useful for repeated testing of individuals.
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