Use of video shadow for small group interaction awareness on a large interactive display surface

This paper reports work done as part of the Large Interactive Display Surface (LIDS) project at the University of Waikato. One application of the LIDS equipment is distributed meeting support. In this context large display surfaces are used as shared workspaces by people at collaborating sites. A meeting with start with a shared presentation document, typically and agenda document with summary and detail on agenda items as required. During the meeting, annotations with be made on the shared document, and new pages will be added with notes and drawings. To prevent access collisions and generally mediate use of the shared space, mechanisms to provide awareness of actions of people at other sites are required. In our system a web camera is used to capture a low-resolution image of the person/people near the board on each side. Rather than transmit the image directly we computed a shadow/silhouette. The shadow is displayed behind other screen content. This provides awareness of position and impending write actions and allows intentional pointing to locations of the screen. It also has the advantage of being transmitted with low bandwidth, being relatively insensitive to low frame rates, and minimizing visual interference with substantive data being displayed on the screen

Epigenetic remodelling of brain, body and behaviour during phase change in locusts

Abstract The environment has a central role in shaping developmental trajectories and determining the phenotype so that animals are adapted to the specific conditions they encounter. Epigenetic mechanisms can have many effects, with changes in the nervous and musculoskeletal systems occurring at different rates. How is the function of an animal maintained whilst these transitions happen? Phenotypic plasticity can change the ways in which animals respond to the environment and even how they sense it, particularly in the context of social interactions between members of their own species. In the present article, we review the mechanisms and consequences of phenotypic plasticity by drawing upon the desert locust as an unparalleled model system. Locusts change reversibly between solitarious and gregarious phases that differ dramatically in appearance, general physiology, brain function and structure, and behaviour. Solitarious locusts actively avoid contact with other locusts, but gregarious locusts may live in vast, migrating swarms dominated by competition for scarce resources and interactions with other locusts. Different phase traits change at different rates: some behaviours take just a few hours, colouration takes a lifetime and the muscles and skeleton take several generations. The behavioural demands of group living are reflected in gregarious locusts having substantially larger brains with increased space devoted to higher processing. Phase differences are also apparent in the functioning of identified neurons and circuits. The whole transformation process of phase change pivots on the initial and rapid behavioural decision of whether or not to join with other locusts. The resulting positive feedback loops from the presence or absence of other locusts drives the process to completion. Phase change is accompanied by dramatic changes in neurochemistry, but only serotonin shows a substantial increase during the critical one- to four-hour window during which gregarious behaviour is established. Blocking the action of serotonin or its synthesis prevents the establishment of gregarious behaviour. Applying serotonin or its agonists promotes the acquisition of gregarious behaviour even in a locust that has never encountered another locust. The analysis of phase change in locusts provides insights into a feedback circuit between the environment and epigenetic mechanisms and more generally into the neurobiology of social interaction.RIGHTS : This article is licensed under the BioMed Central licence at http://www.biomedcentral.com/about/license which is similar to the 'Creative Commons Attribution Licence'. In brief you may : copy, distribute, and display the work; make derivative works; or make commercial use of the work - under the following conditions: the original author must be given credit; for any reuse or distribution, it must be made clear to others what the license terms of this work are

Examining the existence of double jeopardy and negative double jeopardy within Twitter

Purpose: The theory of Double Jeopardy (DJ) is shown to hold across broad ranging geographies and physical product categories. However, there is very little research appertaining to the subject within an online environment. In particular, studies that investigate the presence of DJ and the contrasting view point to DJ, namely that of Negative Double Jeopardy (NDJ), are lacking. This study contributes to this identified research gap, and examines the presence of DJ and NDJ within a product category, utilising data from Twitter. Design/methodology/approach: 354,676 tweets are scraped from Twitter and their sentiment analysed and allocated into positive, negative and no-opinion clusters using fuzzy c-means clustering. The sentiment is then compared to the market share of brands within the beer product category to establish whether a DJ or NDJ effect is present. Findings: The data reveals an NDJ effect with regards to original tweets (i.e. tweets which have not been retweeted). That is, when analysing tweets relating to brands within a defined beer category, we find that larger brands suffer by having an increased negativity amongst the larger proportion of tweets associated with them. Research limitations/implications: The clustering approach to analyse sentiment in Twitter data brings a new direction to analysis of such sentiment. Future consideration of different numbers of clusters may further the insights this form of analysis can bring to the DJ/NDJ phenomenon. Managerial implications discuss the uncovered practitioner’s paradox of NDJ and strategies for dealing with DJ and NDJ effects. Originality/value: This study is the first to explore the presence of DJ and NDJ through the utilisation of sentiment analysis derived data and fuzzy clustering. DJ and NDJ are under-explored constructs in the online environment. Typically, past research examines DJ and NDJ in separate and detached fashions. Thus, the study is of theoretical value because it outlines boundaries to the DJ and NDJ conditions. Second, this research is the first study to analyse the sentiment of consumer-authored tweets to explore DJ and NDJ effects. This study also highlights the need to separate original tweets from retweets because our data shows that jeopardy dynamics differ in these different domains. Finally, the current study offers valuable insight into the DJ and NDJ effects for practicing marketing managers. Examining the existence of double jeopardy and negative double jeopardy within Twitter. Available from: https://www.researchgate.net/publication/313056508_Examining_the_existence_of_double_jeopardy_and_negative_double_jeopardy_within_Twitter [accessed May 2, 2017]

Palliative care in primary care: A study to determine whether patients and professionals agree on symptoms

BACKGROUND: Difficulties in managing symptoms of palliative care patients at home have been identified, yet there has been no investigation of agreement on symptom assessment in primary care. Lack of agreement between patients' and primary care professionals' symptom assessments may be contributing to difficulties in symptom control. AIM: To investigate agreement on symptom assessments between patients at home and GPs and district nurses. DESIGN OF STUDY: Prospective, self-completed, structured symptom assessments. SETTING: Routine contacts with adult palliative care patients estimated to be in their last year of life. METHOD: Patient and professional symptom assessments were obtained using CAMPAS-R, a comprehensive and reliable measure validated for palliative care in the community. Prevalence of reported symptoms was calculated in patient–professional pairs. Intraclass correlation techniques (ICCs) and percentage agreement were used to determine how well symptom assessments of patients and professionals agreed. RESULTS: Anxiety and depression were significantly more likely to be reported by professionals, and GPs over-identified nausea, vomiting and constipation. Professionals assessed emotional symptoms as more severe than patients. Agreement on scoring of physical symptoms was better, although this was at least partially due to agreement on absence of symptoms. Unlike previous reports, pain scores recorded by doctors in this study, were not significantly different from patients. CONCLUSION: This quick and easy to complete assessment tool, CAMPAS-R, has potential for monitoring quality of palliative care symptom control at home

The Stirling Protocol - Putting the environment at the heart of prosperity and social inclusion

While the global coronavirus crisis impacts society and the economy in a myriad of ways, it provides, what is likely to be, a once in a lifetime opportunity for us to rethink our response to climate change. According to the 2020 Global Risk Register, extreme weather and climate action failure are the two most likely and impactful risks to the global economy, which now more than ever needs to be avoided. Addressing the major challenges that we face from climate change can often appear to conflict with economic priorities. Add to this the fact that environmental mitigation steps can inadvertently exclude sections of the population and the enormity and complexity of climate change responses can result in paralysis. In contrast, the Stirling Protocol provides the framework for rapid, effective action and comprises three pillars: Environment, Economy & Inclusion. By addressing and balancing these three pillars, the simple protocol can be adopted throughout organisations putting the environment at the heart of sustainable prosperity and inclusion and provide a benchmark for positive action

Putting the environment at the heart of prosperity & social inclusion: The Stirling Protocol

Scotland’s Programme for Government 2019-20, Protecting Scotland’s Future, sets out an ambitious target to achieve net-zero greenhouse gas emissions by 2045. Meeting this objective will require policymakers, businesses and other organisations to reconsider how they operate, and make the transition to alternative, sustainable ways of working. All too often, it can seem as if there is a conflict between the need to address climate change and demands for economic growth. Where solutions are put in place, they can often exclude certain sections of the population, or can be impractical or burdensome for smaller organisations to adopt. This complexity often leads to paralysis, leaving headline pledges to decarbonise unfulfilled. This briefing paper overviews the Stirling Protocol, a simple framework which enables organisations to balance the demands of economic growth, environmental sustainability, and social inclusion. As Scotland emerges from the economic shock of the global coronavirus pandemic, the Protocol will be relevant to all those with an interest in placing sustainable, inclusive prosperity at the heart of Scotland’s economic recovery.Scotland-specific policy Briefing based on: Cusack et al. The Stirling Protocol – Putting the environment at the heart of prosperity and social inclusion, Science of The Total Environment, Volume 737, 1 October 2020, doi: https://doi.org/10.1016/j.scitotenv.2020.14007

Situated Sketching and Enactment for Pervasive Displays

International audienceSituated sketching and enactment aim at grounding designs in the spatial, social and cultural practices of a particular place. This is particularly relevant when designing for public places in which human activities are open-ended, multi-faceted, and difficult to anticipate, such as libraries, train stations, or commercial areas. In order to investigate situated sketching and enactment, we developed Ébauche. It enables designers to collaboratively sketch interfaces, distribute them across multiple displays and enact use cases. We present the lessons learned from six situated sketching and enactment workshops on public displays with Ébauche, and a controlled study with 8 pairs of designers who used paper and Ébauche. We describe how participants leveraged the place, and how paper or Ébauche influenced the integration of their designs in the place. Looking at the design outcomes, our results suggest that paper leads to broader exploration of ideas and deeper physical integration in the environment. Whereas Ébauche leads to more refined sketches and more animated enactments

Mercury Levels in an Urban Pregnant Population in Durham County, North Carolina

The adverse effects of prenatal mercury exposure, most commonly resulting from maternal fish consumption, have been detected at very low exposure levels. The omega-3 fatty acids found in fish, however, have been shown to support fetal brain and vision development. Using data from a prospective, cohort study of pregnant women from an inland area in the US South, we sought to understand the fish consumption habits and associated mercury levels across subpopulations. Over 30% of women had at least 1 μg/L of mercury in their blood, and about 2% had blood mercury levels above the level of concern during pregnancy (≥3.5 μg/L). Mercury levels were higher among Asian/Pacific Islander, older, higher educated, and married women. Fish consumption from any source was reported by 2/3 of the women in our study, with older women more likely to consume fish. Despite eating more fish meals per week, lower income, lower educated women had lower blood mercury levels than higher income, higher educated women. This suggests the different demographic groups consume different types of fish. Encouraging increased fish consumption while minimizing mercury exposure requires careful crafting of a complex health message