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Conjugation of visual enhancers in lateral flow immunoassay for rapid forensic analysis: A critical review

During crime scene investigations, numerous traces are secured and may be used as evidence for the evaluation of source and/or activity level propositions. The rapid chemical analysis of a biological trace enables the identification of body fluids and can provide significant donor profiling information, including age, sex, drug abuse, and lifestyle. Such information can be used to provide new leads, exclude from, or restrict the list of possible suspects during the investigative phase. This paper reviews the state-of-the-art labelling techniques to identify the most suitable visual enhancer to be implemented in a lateral flow immunoassay setup for the purpose of trace identification and/or donor profiling. Upon comparison, and with reference to the strengths and limitations of each label, the simplistic one-step analysis of noncompetitive lateral flow immunoassay (LFA) together with the implementation of carbon nanoparticles (CNPs) as visual enhancers is proposed for a sensitive, accurate, and reproducible in situ trace analysis. This approach is versatile and stable over different environmental conditions and external stimuli. The findings of the present comparative analysis may have important implications for future forensic practice. The selection of an appropriate enhancer is crucial for a well-designed LFA that can be implemented at the crime scene for a time- and cost-efficient investigation.

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Conjugation of visual enhancers in lateral flow immunoassay for rapid forensic analysis: A critical review

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An exploratory study on notational characteristics of visual notations used in decision management

The visual representation of Information System (IS) artefacts is an important aspect in the practical application of visual representations. However, important and known visual representation principles are often undervalued, which could lead to decreased effectiveness in using a visual representation. Decision Management (DM) is one field of study in which stakeholders must be able to utilize visual notations to model business decisions and underlying business logic, which are executed by machines, thus are IS artefacts. Although many DM notations currently exist, little research actually evaluates visual representation principles to identify the visual notations most suitable for stakeholders. In this paper, the Physics of Notations framework of Moody is operationalized and utilized to evaluate five different DM visual notations. The results show several points of improvement with regards to these visual notations. Furthermore, the results could show the authors of DM visual notations that well-known visual representation principles need to be adequately taken into account when defining or modifying DM visual notations.

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An exploratory study on notational characteristics of visual notations used in decision management

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Visual functioning in nursing home residents

Older adults experience visual problems owing to biological ageing or eye disease. In the Netherlands, the prevalence of visual impairments is the highest in the subgroup of nursing home residents (41.3%). These impairments influence quality of life in terms of limiting daily activities and participation in social activities. Furthermore, 63% of visual problems are defined as ‘avoidable blindness’. For this reason, screening of visual functioning in the nursing home is of major importance. Moreover, visual functioning should also be taken into account to prevent the incidence of falls.

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Visual functioning in nursing home residents

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Organising and learning experiences of the first semester MA Program ePedagogy / Visual Knowledge Building

This paper will discuss the process of the MA program ePedagogy / Visual Knowledge Building during the first semester of the academic year 2005 – 2006. This MA program is a joint venture between the Universities of Helsinki, Hamburg and INHOLLAND. This publication will discuss and evaluate the concrete steps (in terms of learning process) during this first semester. In particular the role of the eTutor will get special attention. This publication is based on the principle of action research. Hart & Bond defines action research as “it is a form of reflective inquiry which enables practitioners to better realise such qualities in their practice. The tests for good action research are very pragmatic ones. Does it improve the professional quality of the transactions between practitioners and clients/colleagues? This action research approach is being realised upon three main sources. As an eTutor and member of the staff of this program I weekly filled in an “Evaluation Log” in which the following questions are centralized: 1. What happened (this week) 2. Significant experience 3. Reflection 4. Actions Secondly I used a little survey which was being used by the staff to evaluate the first semester. All the three Universities filled in a form with the following questions concerning the education and organisation: Education 1. What do you consider most hindering in your teaching? 2. What do you consider most beneficial in your teaching? 3. What kind of teaching methods do you prefer in this program? 4. Do you think the course offers are attractive for the target group? 5. How do you evaluate student’s engagements and motivation in your courses? 6. What can / should be improved in terms of collaborative learning activities and processes? Organisation 1. In what specific context do you spot organisational constraints? 2. Does your organisation recognise and support the MA program? 3. What is your short-, mid- and long term vision on this program? Thirdly an important source for this action research approach was the International Seminar which was hold in the middle of February 2006. In this seminar the changes based on the questions of the questionnaire were discussed and implemented. The theoretical framework in this publication is based on the dissertation of Karel Kreijns (Sociable CSCL Environments). In this dissertation he discussed the collaborative cognitiveand epistemic performance in a CSCLE. The social presence theory takes a central position in this dissertation. In this paper the pitfalls and barriers concerning a sociable CSCLE are being discussed and evaluated. This paper describes, the interventions the staff took, in order to improve the educational context of the program. From this perspective we looked very carefully to the barriers and pitfalls in our Virtual Learning Environment (VLE). We found evidence for the fact that a good CSCLE consists at least a good balance between Content, Community and Pedagogy. In the program we emphasised our focus (too much) on content and (too) little on community and pedagogy. The community was poor because of the fact that we used three content learning systems, which didn’t stimulate the group processes. Pedagogy was too much based on individual eTutor behaviour. In January 2006, after the courses were ended, the Universities organised a little survey. In this survey was shown that we have to some interventions to improve the learning process. At the International Seminar in February 2006 eTutors and students discussed the problems. The following interventions are being considered and implemented: 1. The use of three Virtual Learning Environments should be decreased. Especially the INHOLLAND / Blackboard system doesn’t reflect the open source philosophy. Besides this the accessibility of this system is not very easy for foreign students 2. The collaborative aspect should be increased, by emphasising the interdisciplinaryand international co-operation. The formation of international subgroups is implemented.

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Organising and learning experiences of the first semester MA Program ePedagogy / Visual Knowledge Building

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Age related visual pathologies among nursing home residents: an evaluation of light conditions and recording in client files

The finding of poor lighting conditions in nursing homes in combination with a high prevalence of visual problems (with cataract found to be the most common age related pathology), stretches the need of enhanced awareness of eye care by professional caregivers.

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Age related visual pathologies among nursing home residents: an evaluation of light conditions and recording in client files

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Eye-tracking street users' visual exploration of buildings across the globe

People in western countries spend approximately 90% of their time indoors. This severely affects their health (WHO 2013; Klepeis et al. 2001). The health risks are exacerbated if people travel between indoor spaces by car or public transport. Buildings on streets specifically designed to create a human scale and connected with the street-space can potentially invite people to walk and enhance their engagement with their surroundings (O’Mara 2019; Ewing et al. 2013). Since the 1960s, influential empirical studies have raised awareness of the walkability of streets (e.g. Jacobs 2008) but reliable evidence on the effectiveness of applied design solutions remains scarce (Spanjar & Suurenbroek 2020). This eye-tracking study focused on the visual ‘scanning’ of streetscapes and people’s appreciation of applied design principles. The aim was to gather together lessons learned from a variety of streetscapes in cities around the world and use them to inform the design of new developments in the Netherlands. Google Street View was used to select 19 images of streets in high-density environments with human-scale attributes in their façades and street-spaces. They were presented in a randomized order in a laboratory setting to 40 participants, who viewed them for 5 seconds. The participants’ visual explorative behaviour was recorded with advanced eye-tracking technology. A survey recorded their overall appreciation of the scenes and mouse-tracking collated their specific areas of interest (see fig. 1). The comparative analysis of the participants’ aggregated eye-fixation images together with the supplementary methods suggests that certain attributes for creating a human scale catch the eye in the first few seconds and are highly appreciated. These include the variety of a street’s façades, a street’s enclosedness, and the level of detail in the transition zone between the private ground floor and the public street (see fig. 2). Green features are particularly valued and might have important restorative qualities for people who spend most of their time indoors (Kaplan 1995; Ulrich 1984). Future research should focus on the design of façades and the street-space itself, taking people’s indoor lives and related stress levels as a starting point.

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Eye-tracking street users' visual exploration of buildings across the globe

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Eye-tracking street users' visual exploration of buildings across the Western World

People in western countries spend approximately 90% of their time indoors. This severely affects their health (WHO 2013; Klepeis et al. 2001). The health risks are exacerbated if people travel between indoor spaces by car or public transport. Buildings on streets specifically designed to create a human scale and connected with the street-space can potentially invite people to walk and enhance their engagement with their surroundings (O’Mara 2019; Ewing et al. 2013). Since the 1960s, influential empirical studies have raised awareness of the walkability of streets (e.g. Jacobs 2008) but reliable evidence on the effectiveness of applied design solutions remains scarce (Spanjar & Suurenbroek 2020). This eye-tracking study focused on the visual ‘scanning’ of streetscapes and people’s appreciation of applied design principles. The aim was to gather together lessons learned from a variety of streetscapes in cities around the world and use them to inform the design of new developments in the Netherlands. Google Street View was used to select 19 images of streets in high-density environments with human-scale attributes in their façades and street-spaces. They were presented in a randomized order in a laboratory setting to 40 participants, who viewed them for 5 seconds. The participants’ visual explorative behaviour was recorded with advanced eye-tracking technology. A survey recorded their overall appreciation of the scenes and mouse-tracking collated their specific areas of interest (see fig. 1). The comparative analysis of the participants’ aggregated eye-fixation images together with the supplementary methods suggests that certain attributes for creating a human scale catch the eye in the first few seconds and are highly appreciated. These include the variety of a street’s façades, a street’s enclosedness, and the level of detail in the transition zone between the private ground floor and the public street (see fig. 2). Green features are particularly valued and might have important restorative qualities for people who spend most of their time indoors (Kaplan 1995; Ulrich 1984). Future research should focus on the design of façades and the street-space itself, taking people’s indoor lives and related stress levels as a starting point.

DOCUMENT

Eye-tracking street users' visual exploration of buildings across the Western World

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Learning environments for multi-stakeholder participation in water management

Sustainable management of the Citarum River is a complex problem due to climate challenges such as increase of extreme weather events, as well as by increased anthropogenic activities leading to water pollution, waterborne diseases and floods. To act on this, active engagement of diverse stakeholders in decision-making for integrated water management is needed to share knowledges and understand diverse perspectives. This research reflects on the potential of the Visual Problem Appraisal (VPA) methodology to facilitate stakeholders’ participation in the complexity of sustainable water management in Indonesia. A VPA consists of a series of filmed interviews allowing stakeholders to express their concerns and issues. The interviews are used in thematic workshops to enhance dialogue and stimulating social learning in complex multi-stakeholder settings, in order to enhance environmental governance. Using the VPA solves two well-known problems: shortage of time and means for stakeholders to participate (stakeholder fatigue) and the fact that often the same people participate in diverse arenas (the usual suspects). The VPA could be used at ITB for bachelor’s and master’s degrees regarding Environmental Engineering, at Dutch universities and as a method to facilitate mediated participation within the Living Lab Upper Citarum.

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Design and development of mediated participation for environmental governance transformation

For environmental governance to be more effective and transformative, it needs to enhance the presence of experimental and innovative approaches for participation. This enhancement requires a transformation of environmental governance, as too often the (public) participation process is set up as a formal obligation in the development of a proposed intervention. This article, in search of alternatives, and in support of this transformation elaborates on spaces where participatory and deliberative governance processes have been deployed. Experiences with two mediated participation methodologies – community art and visual problem appraisal – allow a demonstration of their potential, relevance and attractiveness. Additionally, the article analyzes the challenges that result from the nature of these arts-based methodologies, from the confrontational aspects of voices overlooked in conventional approaches, and from the need to rethink professionals’ competences. Considering current environmental urgencies, mediated participation and social imaginaries still demonstrate capacities to open new avenues for action and reflection.

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Conjugation of visual enhancers in lateral flow immunoassay for rapid forensic analysis: A critical review

An exploratory study on notational characteristics of visual notations used in decision management

Visual functioning in nursing home residents

Organising and learning experiences of the first semester MA Program ePedagogy / Visual Knowledge Building

Age related visual pathologies among nursing home residents: an evaluation of light conditions and recording in client files

Eye-tracking street users' visual exploration of buildings across the globe

Eye-tracking street users' visual exploration of buildings across the Western World

Learning environments for multi-stakeholder participation in water management

Design and development of mediated participation for environmental governance transformation

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Products 631

Conjugation of visual enhancers in lateral flow immunoassay for rapid forensic analysis: A critical review

An exploratory study on notational characteristics of visual notations used in decision management

Visual functioning in nursing home residents

Organising and learning experiences of the first semester MA Program ePedagogy / Visual Knowledge Building

Age related visual pathologies among nursing home residents: an evaluation of light conditions and recording in client files

Eye-tracking street users' visual exploration of buildings across the globe

Eye-tracking street users' visual exploration of buildings across the Western World

Learning environments for multi-stakeholder participation in water management

Design and development of mediated participation for environmental governance transformation