TY - JOUR A1 - Spangenberg, Joachim A1 - Lorek, Sylvia T1 - Sufficiency and consumer behaviour: from theory to policy JF - Energy Policy N2 - It is increasingly obvious that for safeguarding environmental sustainability, eco‐efficiency measures will need to be complemented by sufficiency, in particular by strong sustainable consumption. The Theory of Planned Behaviour TPB and Social Practice Theory SPT offer different views on consumer behaviour, and on ways to change it. This paper briefly describes the challenges, discusses the applicability of both theories and their meaningfulness for policy recommendations. We suggest an approach combining results of both bodies of theory, complemented by ideas from political economy, to substantiate the Prism of Sustainable Consumption we introduce as a heuristic sufficiency policy tool. It is useful to identify affordability criteria for change in each dimension, as the basis for deriving suggestions for effective policy interventions. We conclude that (i) effective interventions are possible, (ii) they have to address several dimensions of affordability simultaneously, and (iii) the sufficiency policy space prism can be a useful tool in structuring planned interventions. KW - dimensions of affordability KW - Theory of Planned Behaviour TPB KW - Social Practice Theory SPT KW - Prism of Sustainable Consumption KW - sufficiency policy options Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-104648 UR - https://www.sciencedirect.com/science/article/pii/S0301421519301764 VL - 129, June 2019 SP - 1070 EP - 1079 ER - TY - JOUR A1 - Sanfilippo-Schulz, Jessica T1 - Becoming Cross-Cultural Kids in K. J. Fowler’s ‘We Are All Completely Beside Ourselves’ JF - Junctions: Graduate Journal of the Humanities KW - Third culture kids KW - critical animal studies KW - cross cultural kids KW - childhood studies KW - Karen J. Fowler Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-169847 SN - 2468-8282 VL - 4 IS - 1 SP - 23 EP - 42 PB - The Graduate School of Humanities, Utrecht University ER - TY - JOUR A1 - Petzold, Neele A1 - Landinez, Lina A1 - Baaken, Thomas T1 - Disruptive innovation from a process view: A systematic literature review JF - Creativity and Innovation Management N2 - There are many challenges in identifying and managing a disruptive innovation stemming from the limited knowledge on how it unfolds over time. Researchers have identified early signals and ex ante conditions that indicate its occurrence. However, an analysis from a process view acknowledging the underlying dynamics is yet to be done. By taking a process view within a systematic literature review, we analyse the scattered findings on the process of disruptive innovation to identify events and actions leading to a disruptive effect over time. We challenge the understanding of disruptive innovation as an outcome and the linearity of the process by proposing that disruptive innovation can be understood as occurring through emergent dynamics. These dynamics are constituted by: (a) the timing of entry and underlying processes that influences (b) the synchronization of events and actions and is shaped by (c) the adaptability of strategic actions. Thus, we complexify the concept of disruptive innovation to support the understanding of its unfolding and advance its manageability. KW - Disruptive Innovation KW - Disruptive Technologies KW - Process View KW - Systematic literature review Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-102323 UR - https://onlinelibrary.wiley.com/doi/epdf/10.1111/caim.12313 VL - 2019 SP - 1 EP - 18 ER - TY - JOUR A1 - Lorek, Sylvia A1 - Spangenberg, Joachim T1 - Energy sufficiency through social innovation in housing JF - Energy Policy N2 - Experience shows that energy savings through energy efficiency measures are partly compensated by income growth, and partly by rebound effects. Therefore to be effective, efficiency measures have to be embedded in a concept of sufficiency which strives for limits and absolute reduction of energy consumption. While the sufficiency concept is not new, it only recently gained attention in the field of housing. This paper provides a basis for broader and more informed debates in policy and research on the potential of sufficiency considerations to contribute to the overall reduction of energy consumption in the residential sector. It recommends shifting the attention from energy consumption of buildings towards a concept of sustainable homes in which e.g. the size of the living area plays a crucial role. A further important aspect is the possibility to fulfil other basic needs like the provision with food, recreation and social contacts in the nearby environment. The paper describes first examples of housing projects guided by sufficiency criteria, depicts the potential roles of different actor groups and points towards some general policy recommendations. KW - energy consumption KW - households KW - social innovation KW - sufficiency Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-104638 UR - https://www.sciencedirect.com/science/article/pii/S0301421518307493 VL - 126, March 2019 SP - 287 EP - 294 ER - TY - RPRT A1 - Klemm, Christian A1 - Vennemann, Peter T1 - Optimization of resource efficiency in mixed-use quarters Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-110361 ER - TY - JOUR A1 - Kernebeck, Sven A1 - Holle, Daniela A1 - Pogscheba, Patrick A1 - Jordan, Felix A1 - Mertl, Fabian A1 - Huldtgren, Alina A1 - Bader, Sebastian A1 - Kirste, Thomas A1 - Teipel, Stefan A1 - Holle, Bernhard A1 - Halek, Margareta T1 - A Tablet App– and Sensor-Based Assistive Technology Intervention for Informal Caregivers to Manage the Challenging Behavior of People With Dementia (the insideDEM Study): Protocol for a Feasibility Study JF - JMIR Research Protocols N2 - Despite the enormous number of assistive technologies (ATs) in dementia care, the management of challenging behavior (CB) of persons with dementia (PwD) by informal caregivers in home care is widely disregarded. The first-line strategy to manage CB is to support the understanding of the underlying causes of CB to formulate individualized nonpharmacological interventions. App- and sensor-based approaches combining multimodal sensors (actimetry and other modalities) and caregiver information are innovative ways to support the understanding of CB for family caregivers. The main aim of this study is to describe the design of a feasibility study consisting of an outcome and a process evaluation of a newly developed app- and sensor-based intervention to manage CB of PwD for family caregivers at home. In this feasibility study, we perform an outcome and a process evaluation with a pre-post descriptive design over an 8-week intervention period. The Medical Research Council framework guides the design of this feasibility study. The data on 20 dyads (primary caregiver and PwD) are gathered through standardized questionnaires, protocols, and log files as well as semistructured qualitative interviews. The outcome measures (neuropsychiatric inventory and Cohen-Mansfield agitation inventory) are analyzed by using descriptive statistics and statistical tests relevant to the individual assessments (eg, chi-square test and Wilcoxon signed-rank test). For the analysis of the process data, the Unified Theory of Acceptance and Use of Technology is used. Log files are analyzed by using descriptive statistics, protocols are analyzed by using documentary analysis, and semistructured interviews are analyzed deductively using content analysis. The newly developed app- and sensor-based AT has been developed and was evaluated until July in 2018. The recruitment of dyads started in September 2017 and was concluded in March 2018. The data collection was completed at the end of July 2018. This study presents the protocol of the first feasibility study to encompass an outcome and process evaluation to assess a complex app- and sensor-based AT combining multimodal actimetry sensors for informal caregivers to manage CB. The feasibility study will provide in-depth information about the study procedure and on how to optimize the design of the intervention and its delivery. DERR1-10.2196/11630 Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-173274 SN - 1929-0748 VL - 8 SP - e11630 ER - TY - CHAP A1 - Kazasidis, Orestis A1 - Verpoort, Sven A1 - Wittrock, Ulrich T1 - Image-based wavefront correction for space telescopes T2 - International Conference on Space Optics - ICSO 2018 N2 - With a view to future large space telescopes, we investigate image-based wavefront correction with active optics. We use an image-sharpness metric as merit function to evaluate the image quality, and the Zernike modes as control variables. In severely aberrated systems, the Zernike modes are not orthogonal to each other with respect to this merit function. Using wavefront maps, the PSF, and the MTF, we discuss the physical causes for the non-orthogonality of the Zernike modes with respect to the merit function. We show that for combinations of Zernike modes with the same azimuthal order, a flatter wavefront in the central region of the aperture is more important than the RMS wavefront error across the full aperture for achieving a better merit function. The non-orthogonality of the Zernike modes with respect to the merit function should be taken into account when designing the algorithm for image-based wavefront correction, because it may slow down the process or lead to premature convergence. KW - active optics, adaptive optics, sharpness metrics, aberration compensation, algorithm design Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-109036 UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11180/111807Z/Image-based-wavefront-correction-for-space-telescopes/10.1117/12.2536206.full?SSO=1 SP - 111807Z PB - Proc. SPIE ER - TY - JOUR A1 - Kazasidis, Orestis A1 - Verpoort, Sven A1 - Wittrock, Ulrich T1 - Aberration balancing using an image-sharpness metric JF - J. Opt. Soc. Am. A N2 - Image-sharpness metrics can be used to optimize optical systems and to control wavefront sensorless adaptive optics systems. We show that for an aberrated system, the numerical value of an image-sharpness metric can be improved by adding specific aberrations. The optimum amplitudes of the additional aberrations depend on the power spectral density of the spatial frequencies of the object. KW - adaptive optics; image-sharpness Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-109198 UR - https://www.osapublishing.org/josaa/abstract.cfm?uri=josaa-36-8-1418 VL - 36 IS - 8 SP - 1418 EP - 1422 ER - TY - RPRT A1 - Gardemann, Joachim T1 - Severe Acute Malnutrition, Refeeding and Insulin N2 - The evolutionary role of insulin in starvation is the key of understanding its action in phases of over- and undernutrition. KW - insulin KW - malnutrition KW - refeeding KW - diabetes Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-115492 ER - TY - JOUR A1 - Fischer, T. A1 - Njoroge, H. A1 - Och, U. A1 - Klawon, I. A1 - Marquardt, T. T1 - Ketogenic diet treatment in adults with glycogenosis type IIIa (Morbus Cori) JF - Clinical Nutrition Experimental Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-170947 VL - 28 SP - 83 EP - 91 ER -