Head movements and prosody in multimodal feedback

Proceedings of the 3rd Nordic Symposium on Multimodal Communication. Editors: Patrizia Paggio, Elisabeth Ahlsén, Jens Allwood, Kristiina Jokinen, Costanza Navarretta. NEALT Proceedings Series, Vol. 15 (2011), 25–32. © 2011 The editors and contributors. Published by Northern European Association for Language Technology (NEALT) http://omilia.uio.no/nealt . Electronically published at Tartu University Library (Estonia) http://hdl.handle.net/10062/22532

“Just Carbon”: Ideas About Graphene Risks by Graphene Researchers and Innovation Advisors

Graphene is a nanomaterial with many promising and innovative applications, yet early studies indicate that graphene may pose risks to humans and the environment. According to ideas of responsible research and innovation, all relevant actors should strive to reduce risks related to technological innovations. Through semi-structured interviews, we investigated the idea of graphene as a risk (or not) held by two types of key actors: graphene researchers and innovation advisors at universities, where the latter are facilitating the movement of graphene from the laboratory to the marketplace. The most common idea found is that graphene is not a risk due to, e.g., low toxicity, low amounts produced/used, and its similarity to harmless materials (being “just carbon”). However, some researchers and advisors also say that graphene is a risk, e.g., under certain conditions or due to a lack of risk-related information. We explain the co-existence of these seemingly contradictory ideas through (1) the semantic ambiguity of the word risk and (2) a risk/no-risk rhetoric, where risks are mentioned rhetorically only to be disregarded as manageable or negligible. We suggest that some of the ideas held by the researchers and innovation advisors constitute a challenge to responsible research and innovation regarding graphene. At the same time, we acknowledge the dilemma that the discourse of responsible innovation creates for the actors: denying graphene risks makes them irresponsible due to a lack of risk awareness, while affirming graphene risks makes them irresponsible due to their everyday engagement in graphene development. We therefore recommend more research into what researchers and innovation advisors should do in practice in order to qualify as responsible

Risk, language and discourse

This doctoral thesis analyses the concept of risk and how it functions as an organizing principle of discourse, paying close attention to actual linguistic practice.           Article 1 analyses the concepts of risk, safety and security and their relations based on corpus data (the Corpus of Contemporary American English). Lexical, grammatical and semantic contexts of the nouns risk, safety and security, and the adjectives risky, safe and secure are analysed and compared. Similarities and differences are observed, suggesting partial synonymy between safety (safe) and security (secure) and semantic opposition to risk (risky). The findings both support and contrast theoretical assumptions about these concepts in the literature.           Article 2 analyses the concepts of risk and danger and their relation based on corpus data (in this case the British National Corpus). Frame semantics is used to explore the assumptions of the sociologist Niklas Luhmann (and others) that the risk concept presupposes decision-making, while the concept of danger does not. Findings partly support and partly contradict this assumption.           Article 3 analyses how newspapers represent risk and causality. Two theories are used: media framing and the philosopher John Mackie’s account of causality. A central finding of the study is that risks are “framed” with respect to causality in several ways (e.g. one and the same type of risk can be presented as resulting from various causes). Furthermore, newspaper reporting on risk and causality vary in complexity. In some articles, risks are presented without causal explanations, while in other articles, risks are presented as results from complex causal conditions. Considering newspaper reporting on an aggregated overall level, complex schemas of causal explanations emerge.           Article 4 analyses how phenomena referred to by the term nano (e.g. nanotechnology, nanoparticles and nanorobots) are represented as risks in Swedish newspaper reporting. Theoretically, the relational theory of risk and frame semantics are used. Five main groups of nano-risks are identified based on the risk object of the article: (I) nanotechnology; (II) nanotechnology and its artefacts (e.g. nanoparticles and nanomaterials); (III) nanoparticles, without referring to nanotechnology; (IV) non-nanotechnological nanoparticles (e.g. arising from traffic); and (V) nanotechnology and nanorobots. Various patterns are explored within each group, concerning, for example, what is considered to be at stake in relation to these risk objects, and under what conditions. It is concluded that Swedish patterns of newspaper reporting on nano-risks follow international trends, influenced by scientific assessment, as well as science fiction.           Article 5 analyses the construction and negotiation of risk in the Swedish controversy over the use of antibacterial silver in health care and consumer products (e.g. sports clothes and equipment). The controversy involves several actors: print and television news media, Government and parliament, governmental agencies, municipalities, non-government organisations, and companies. In the controversy, antibacterial silver is claimed to be a risk object that negatively affects health, the environment, and sewage treatment industry (objects at risk). In contrast, such claims are denied. Antibacterial silver is even associated with the benefit of mitigating risk objects (e.g. bacteria and micro-organisms) that threaten health and the environment (objects at risk). In other words, both sides of the controversy invoke health and the environment as objects at risk. Three strategies organising risk communication are identified: (i) representation of silver as a risk to health and the environment; (ii) denial of such representations; and (iii) benefit association, where silver is construed to mitigate risks to health and the environment.Avhandlingen analyserar begreppet risk och hur detta begrepp strukturerar diskurs. Ett centralt intresse för analysen är faktisk språkanvändning.           I den första artikeln analyseras de engelska begreppen risk, safety and security och deras relation. Analysen bygger på korpusdata (the Corpus of Contemporary American English). Lexikala och grammatiska kontexter för substantiven risk, safety och security och adjektiven risky, safe och secure analyseras och jämförs. Både likheter och skillnader identifieras vilka i stort bekräftar att safety (safe) och security (secure) är synonymer och i sin tur motsatser (antonymer) till risk (risky). Studien stödjer flera tidigare antaganden om dessa begrepp inom forskningslitteraturen, men motsäger andra.           I den andra artikeln analyseras de engelska begreppen risk och danger och deras relation baserat på korpusdata (the British National Corpus). Ramsemantik (eng. frame semantics) används för att undersöka antagandet att begreppet risk förutsätter beslutsfattande, medan begreppet danger inte gör det. Studien stödjer delvis detta antagande, men visar också på problem med antagandet.           I den tredje artikeln analyseras hur nyhetspress framställer risk och orsak-verkansamband (kausalitet). Två teorier används. För det första används teorin om medias ”inramning” av händelser (eng. media framing). För det andra används filosofiska perspektiv på kausala beskrivningar. En huvudsaklig slutsats är att risker framställs på många olika sätt med avseende på kausalitet. Exempelvis kan en och samma risk framställas som ett resultat av flera olika orsaker. Vidare framställer nyhetspress riskers kausalitet med olika grader av komplexitet. I vissa tidningsartiklar presenteras risker utan några kausala förklaringar. I andra tidningsartiklar presenteras risker som resultat av komplexa orsak-verkansamband. Om man betraktar nyhetsrapporteringen om risker på en övergripande nivå, så framträder en komplex bild av riskers orsakssamband.           I den fjärde artikeln analyseras framställningar av fenomen som benämns med morfemet nano, exempelvis nanoteknologi, nanomaterial och nanorobotar. Frågan som besvaras är på vilket sätt sådana fenomen framställs som risker i svensk nyhetspress. Teoretiskt utgår studien från den relationella teorin om risk och ramsemantik. Baserat på vilka fenomen som framställs som riskobjekt (eller hot) i tidningsartiklar, identifieras fem grupper av nanorisker: (I) nanoteknologi, (II) nanoteknologi och dess produkter (t.ex. nanopartiklar och nanomaterial), (III) nanopartiklar (utan referens till nanoteknologi), (IV) nanopartiklar som inte är resultat av nanoteknologi (utan istället uppstår t.ex. i trafiken) och (V) nanoteknologi och nanorobotar. För varje grupp undersöks vidare mönster i framställningen av dessa risker, exempelvis, vad som beskrivs som hotat av dessa riskobjekt och under vilka förutsättningar. Studiens empiriska observationer stödjer tidigare forskning om hur nanorisker rapporteras i nyhetspress internationalt. Rapporteringen av nanorisker är influerad av vetenskapliga riskbedömningar, men också av science fiction.           I den femte artikeln analyseras en kontrovers kring användningen av antibakteriellt silver inom sjukvården och i konsumentartiklar som exempelvis träningskläder och sportutrustning. Fokus för artikeln är hur risker uppfattas i den svenska debatten som inbegriper nyhetsmedia (press och TV), regering och riksdag, myndigheter, kommuner, intresseorganisationer och företag. Vissa aktörer menar att silver är ett riskobjekt som påverkar olika värden på ett negativt sätt, till exempel, folkhälsan, miljön, och avloppsreningsindustrin. Andra aktörer förnekar dessa påståenden. De menar till och med att silver har fördelar som att motverka risker som hotar folkhälsan och miljön. Med andra ord åberopar båda sidorna av kontroversen hälsa och miljö som värden viktiga att skydda. Slutligen identifieras tre strategier för riskkommunikation som tillämpas i kontroversen: (i) framställningen av silver som en miljö- och hälsorisk, (ii) förnekande av dessa påståenden, och (iii) nyttoassociationer där silver framställs som något som motverkar miljö- och hälsorisker.QC 20160127</p

The value of environment in the controversy over antibacterial silver: A Swedish case study

This study analyzes the argumentation used in the Swedish controversy over using silver as an antibacterial agent in consumer and healthcare products. The analysis is based on texts from the news media, government agencies, non-governmental organizations, municipalities, companies, and the Swedish parliament and government. Opponents argue that silver harms the environment, while proponents not only refute this, but even claim it to be beneficial. Refutation of opposing views and invocations of scientific evidence are overall argumentative strategies used by both sides of the controversy. These patterns of the controversy form a complex and multi-faceted context that can be expected to restrict citizen conceptualization, information seeking, participation, and deliberation

Repeated head movements, their function and relation to speech

This paper presents a study of multimodal communication in spontaneous “getting to know each other conversations”. The study focuses on repeated head movements (head-nods and head-shakes) and the speech co-occurring with them. The main function of such repeated head movements is found to be communicative feedback. This is also the most frequent function of the speech co-occurring with the head movements. However, there is mostly no 1-1 relation between repetition in head movement and vocal words. Repeated head movements are more often accompanied by single than repeated words. Both repeated head movements and repeated vocal words can also occur without accompaniment in the other modality. In such cases, the most frequent function for the head movements is still communicative feedback. However, the most frequent function of repeated words without accompaniment in the other modality is own communication management. Frequent functions of repeated head movements, besides feedback, are emphasis, self-reflection, citation, self-reinforcement and own communication management. Other findings in the study are that affirmative repeated head nods mostly start with an upward movement and involve two repetitions. 1

Controversy over antibacterial silver: implications for environmental and sustainability assessments

The potential risks and benefits of using silver, especially nanosilver, as an antibacterial agent in consumer and healthcare products are under debate globally. Using content analysis of texts from newspaper and TV, government agencies, municipalities, government and parliament, non-governmental organizations, and companies, we analyze the argumentation in the Swedish public controversy over antibacterial silver and relate the findings to environmental and sustainability assessments.We conclude that silver is regarded as either beneficial or harmful in relation to four main values: the environment, health, sewage treatment, and product effectiveness. Various arguments are used to support positive and negative evaluations of silver, revealing several contradictory reasons for considering silver beneficial or harmful. Current environmental and sustainability assessments (i.e. substance flow analysis, risk analysis, multi-criteria analysis, and lifecycle assessment) cover many of the concerns raised in the public controversy over antibacterial silver and can therefore inform the debate regarding its toxicity, emissions, and environmental impact. However, not all concerns raised in the public controversy are covered by current environmental and sustainability assessments, most notably, concerns over public health and bacterial resistance issues are not paid full attention. For future environmental and sustainability assessments to make an even more significant societal contribution and to inform consumers and decision-makers about concerns articulated in the public debate, a wider range of issues concerning antibacterial silver needs to be considered through a unified framework

A Definition Framework for the Terms Nanomaterial and Nanoparticle

Scientific writings and policy documents definethe terms nanomaterial and nanoparticle in variousways. This variation is considered problematic becausethe absence of a shared definition is understood aspotentially hindering nanomaterial knowledge productionand regulation. Another view is that the existence ofa shared definition may itself cause problems, as rigiddefinitions arguably exclude important aspects of thestudied phenomena. The aim of this paper is to informthis state of disagreement by providing analytical conceptsfor a systematic understanding of how, and evenwhether, nanomaterial and nanoparticle could andshould be defined. To do this, we review definitions ofnanomaterial and nanoparticle presented in researcharticles and policy documents. Definitions were identifiedby first conducting a Scopus search and then tracingcited definitions back to their sources. In total, 36 definitionswere identified. Theories of definition from philosophyand linguistics provide analytical guidance forstructuring and categorizing the identified definitions,and the main analytical dimensions of the definitions arethen identified and discussed. Finally, we propose aframework for understanding the process of definingnanomaterial and nanoparticle. This frameworkconsiders both the generality needed for a shared understanding(by suggesting proto-definitions ofnanomaterial and nanoparticle) and the level of precisionrequired for different purposes (by allowing forvarious explications of the proto-definitions)

The value of environment in the controversy over antibacterial silver: A Swedish case study

This study analyzes the argumentation used in the Swedish controversy over using silver as an antibacterial agent in consumer and healthcare products. The analysis is based on texts from the news media, government agencies, non-governmental organizations, municipalities, companies, and the Swedish parliament and government. Opponents argue that silver harms the environment, while proponents not only refute this, but even claim it to be beneficial. Refutation of opposing views and invocations of scientific evidence are overall argumentative strategies used by both sides of the controversy. These patterns of the controversy form a complex and multi-faceted context that can be expected to restrict citizen conceptualization, information seeking, participation, and deliberation