| 1. |
- Hassan, M. U., et al.
(författare)
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Digital Twins for Lighting Analysis : Literature Review, Challenges, and Research Opportunities
- 2022
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Ingår i: Proceedings - European Council for Modelling and Simulation, ECMS. - : European Council for Modelling and Simulation. ; , s. 226-235
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Konferensbidrag (refereegranskat)abstract
- Light modelling, simulation, and photometric calculations are by now common tasks in the lighting design process. These practices contribute to the definition and comparison of suitable layout arrangements and help predict the impact of lighting devices. Those tasks demand the use of tools to support the simulation of different scenarios, the analyses of their pros and cons according to different criteria (e.g., health and safety, perception, aesthetics, energy consumption, and costs), and decision-making. Digital twins have emerged as relevant technologies to simulate and visualize different “what-if” scenarios associated with physical entities and processes. In this paper, we investigate the state-of-the-art research concerning the use of digital twins for supporting lighting analysis in the urban/outdoor context. We also present and discuss challenges and research opportunities related to the design, implementation, and validation of digital twins in this domain.
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| 2. |
- Lionis, C, et al.
(författare)
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High Variability in Implementation of Selective-Prevention Services for Cardiometabolic Diseases in Five European Primary Care Settings
- 2020
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Ingår i: International journal of environmental research and public health. - : MDPI AG. - 1660-4601. ; 17:23
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Tidskriftsartikel (refereegranskat)abstract
- (1) Background: Cardiometabolic diseases are the most common cause of death worldwide. As part of a collaborative European study, this paper aims to explore the implementation of primary care selective-prevention services in five European countries. We assessed the implementation process of the selective-prevention services, participants’ cardiometabolic profile and risk and participants’ evaluation of the services, in terms of feasibility and impact in promoting a healthy lifestyle. (2) Methods: Eligible participants were primary care patients, 40–65 years of age, without any diagnosis of cardiometabolic disease. Two hundred patients were invited to participate per country. The extent to which participants adopted and completed the implementation of selective-prevention services was recorded. Patient demographics, lifestyle-related cardiometabolic risk factors and opinions on the implementation’s feasibility were also collected. (3) Results: Acceptance rates varied from 19.5% (n = 39/200) in Sweden to 100% (n = 200/200) in the Czech Republic. Risk assessment completion rates ranged from 65.4% (n = 70/107) in Greece to 100% (n = 39/39) in Sweden. On a ten-point scale, the median (25–75% quartile) of participant-reported implementation feasibility ranged from 7.4 (6.9–7.8) in Greece to 9.2 (8.2–9.9) in Sweden. Willingness to change lifestyle exceeded 80% in all countries. (4) Conclusions: A substantial variation in the implementation of selective-prevention receptiveness and patient risk profile was observed among countries. Our findings suggest that the design and implementation of behavior change cardiometabolic programmes in each country should be informed by the local context and provide some background evidence towards this direction, which can be even more relevant during the current pandemic period.
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| 3. |
- Angelaki, M., et al.
(författare)
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Translation and Validation of the Greek Version of the Antipsychotics and Sexual Functioning Questionnaire (ASFQ)
- 2021
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Ingår i: Sexual Medicine. - : Oxford University Press (OUP). - 2050-1161. ; 9:3
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Tidskriftsartikel (refereegranskat)abstract
- Introduction: Sexual dysfunction in patients with psychoses may be associated with the psychiatric illness itself (negative symptoms, such as apathy, and avolition), comorbid somatic health, psychosocial factors (stigmatization, discrimination), and the use of psychotropic drugs. In Greece, research into the study of antipsychoticinduced sexual dysfunction is not sufficient. Aim: This study was conducted to translate and validate the Greek version of the Antipsychotics and Sexual Functioning Questionnaire (ASFQ) in a sample of patients receiving antipsychotic treatment. Methods: A "forward-backward translation" method was applied. A pilot study was conducted with 15 outpatients with schizophrenia and bipolar disorder under antipsychotics treatment. Patients also completed the "Subjects' Response to Antipsychotics (SRA)" questionnaire in order to assess the validity of the ASFQ. The ASFQ and the SRA questionnaire were completed twice within 2 weeks. Main outcome measures: Reliability (internal consistency and test-retest) and validity were assessed. Results: The Greek translation of ASFQ was reliable, with excellent internal consistency (Cronbach's a = 0.90 formen and 0.95 for women in both measurements). In addition, the Spearman correlation coefficient was 1 (P<.001) in all Likert-type questions in both assessments. Finally, Spearman correlation coefficients between ASFQ and SRA were moderately positive to strongly positive (between 0.25 and 1) in both assessments, demonstrating moderate to high validity. Conclusions: The Greek version of the ASFQ has proved to be a reliable and valid clinical instrument, hence it can be used in further studies in the Greek population. Copyright (C) 2021 The Authors. Published by Elsevier Inc. on behalf of the International Society for Sexual Medicine.
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| 4. |
- Angelaki, Stavroula, et al.
(författare)
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Light as a Form of Visual Language Supporting Daily Schedules in Educational Spaces: A Design Framework
- 2024
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Ingår i: Buildings. - : MDPI AG. - 2075-5309. ; 14:5, s. 1385-1385
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Tidskriftsartikel (refereegranskat)abstract
- This study explores how lighting can be employed as a visual language to enhance communication between the space and its users and develop a design framework for educational spaces. A primary school is used as a case study to apply the proposed design framework. The study focuses on lighting interventions in existing educational spaces to support daily schedules and transitions between activities. In this context, electric light is used as an indicator, highlighting the daily schedule and activities in the space. A theoretical approach is used as a foundation for establishing the design framework that leads to lighting proposals based on the specific spatial characteristics of each study. The outcome is a design solution based on the dominant spatial elements that define the space’s identity and function. The study focuses on educational spaces and lighting for peripheral vision while considering pupils’ visual and spatial development. The proposal has the role of an additional light layer that signals transitions in terms of activities or spatial mobility.
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| 5. |
- Angelaki, Stavroula, et al.
(författare)
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Lighting in Kindergartens : Towards Innovative Design Concepts for Lighting Design in Kindergartens Based on Children’s Perception of Space
- 2022
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Ingår i: Sustainability. - : MDPI AG. - 2071-1050. ; 14:4, s. 2302-2302
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Tidskriftsartikel (refereegranskat)abstract
- Light is the foundation of the visual perceptual process that initiates the evaluation of the surrounding area. Linked to various aspects and rhythms of the body, light connects us to both the natural environment and the interior space. The process of perceiving and assessing space for children and adults with different viewing heights and viewing perspectives as well as the role of light to facilitate this are the key elements of this study. The paper describes general lighting design strategies for kindergartens, specifically developed to create an environment that takes into account the children’s scale and cognitive processes. The objective was to discuss environments that support the child’s spatial perception along with shape and object recognition by means of lighting design, for example by creating distinct, well-placed shadows. The proposed strategies are informed by a literature review on the concepts and interrelations of light, human physiology and the perception of scale and space. In addition, our process also included visits to kindergartens to observe and analyse existing lighting as well as the use of simulation programs to test lighting scenarios and their patterns/distribution of light and shadow. The outcome described in this paper is a proposal and strategy to take into account children’s vantage points when designing lighting in kindergartens that is still open to practical interpretations in real-world sites.
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| 6. |
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| 7. |
- Van Dijck, Gert, et al.
(författare)
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Probabilistic Identification of Cerebellar Cortical Neurones across Species
- 2013
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Ingår i: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 8:3
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Tidskriftsartikel (refereegranskat)abstract
- Despite our fine-grain anatomical knowledge of the cerebellar cortex, electrophysiological studies of circuit information processing over the last fifty years have been hampered by the difficulty of reliably assigning signals to identified cell types. We approached this problem by assessing the spontaneous activity signatures of identified cerebellar cortical neurones. A range of statistics describing firing frequency and irregularity were then used, individually and in combination, to build Gaussian Process Classifiers (GPC) leading to a probabilistic classification of each neurone type and the computation of equiprobable decision boundaries between cell classes. Firing frequency statistics were useful for separating Purkinje cells from granular layer units, whilst firing irregularity measures proved most useful for distinguishing cells within granular layer cell classes. Considered as single statistics, we achieved classification accuracies of 72.5% and 92.7% for granular layer and molecular layer units respectively. Combining statistics to form twin-variate GPC models substantially improved classification accuracies with the combination of mean spike frequency and log-interval entropy offering classification accuracies of 92.7% and 99.2% for our molecular and granular layer models, respectively. A cross-species comparison was performed, using data drawn from anaesthetised mice and decerebrate cats, where our models offered 80% and 100% classification accuracy. We then used our models to assess non-identified data from awake monkeys and rabbits in order to highlight subsets of neurones with the greatest degree of similarity to identified cell classes. In this way, our GPC-based approach for tentatively identifying neurones from their spontaneous activity signatures, in the absence of an established ground-truth, nonetheless affords the experimenter a statistically robust means of grouping cells with properties matching known cell classes. Our approach therefore may have broad application to a variety of future cerebellar cortical investigations, particularly in awake animals where opportunities for definitive cell identification are limited.
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