Laboratoire Interdisciplinaire pour la Sociologie Economique

BACKGROUND: Therapeutic virtual reality (VR) has emerged as an efficacious treatment modality for a wide range of health conditions. However, despite encouraging outcomes from early stage research, a consensus for the best way to develop and evaluate VR treatments within a scientific framework is needed. OBJECTIVE: We aimed to develop a methodological framework with input from an international working group in order to guide the design, implementation, analysis, interpretation, and communication of trials that develop and test VR treatments. METHODS: A group of 21 international experts was recruited based on their contributions to the VR literature. The resulting Virtual Reality Clinical Outcomes Research Experts held iterative meetings to seek consensus on best practices for the development and testing of VR treatments. RESULTS: The interactions were transcribed, and key themes were identified to develop a scientific framework in order to support best practices in methodology of clinical VR trials. Using the Food and Drug Administration Phase I-III pharmacotherapy model as guidance, a framework emerged to support three phases of VR clinical study designs-VR1, VR2, and VR3. VR1 studies focus on content development by working with patients and providers through the principles of human-centered design. VR2 trials conduct early testing with a focus on feasibility, acceptability, tolerability, and initial clinical efficacy. VR3 trials are randomized, controlled studies that evaluate efficacy against a control condition. Best practice recommendations for each trial were provided. CONCLUSIONS: Patients, providers, payers, and regulators should consider this best practice framework when assessing the validity of VR treatments.

Much academic research on low-carbon transitions focuses on the diffusion or use of innovations such as electric vehicles or solar panels, but overlooks or obscures downstream and upstream processes, such as mining or waste flows. Yet it is at these two extremes where emerging low-carbon transitions in mobility and electricity are effectively implicated in toxic pollution, biodiversity loss, exacerbation of gender inequality, exploitation of child labor, and the subjugation of ethnic minorities. We conceptualize these processes as part of an emerging “decarbonisation divide.” To illustrate this divide with clear insights for political ecology, sustainability transitions, and energy justice research, this study draws from extensive fieldwork examining cobalt mining in the Democratic Republic of the Congo (DRC), and the processing and recycling of electronic waste in Ghana. It utilizes original data from 34 semi-structured research interviews with experts and 69 community interviews with artisanal cobalt miners, e-waste scrapyard workers, and other stakeholders, as well as 50 site visits. These visits included 30 industrial and artisanal cobalt mines in the DRC, as well as associated infrastructure such as trading depots and processing centers, and 20 visits to the Agbogbloshie scrapyard and neighborhood alongside local waste collection sites, electrical repair shops, recycling centers, and community e-waste dumps in Ghana. The study proposes a concerted set of policy recommendations for how to better address issues of exploitation and toxicity, suggestions that go beyond the often-touted solutions of formalisation or financing. Ultimately, the study holds that we must all, as researchers, planners, and citizens, broaden the criteria and analytical parameters we use to evaluate the sustainability of low-carbon transitions.

The international development community is beginning to recognise that people with disabilities constitute among the poorest and most vulnerable of all groups and thus must be a core issue in development policies and programmes. Yet, the relationship between disability and poverty remains ill-defined and under-researched, with few studies providing robust and verifiable data that examines the intricacies of this relationship. A second, linked issue is the need for – and current lack of – criteria to assess whether and how disability-specific and disability ‘mainstreamed’ or ‘inclusive’ programmes work in combating the exclusion, marginalisation and poverty of people with disabilities. This article reviews existing knowledge and theory regarding the disability/poverty nexus. Using both established theoretical constructs and field based data, it attempts to identify what knowledge gaps exist and need to be addressed with future research.

In this Viewpoint, we argue that transitions research needs to engage more firmly with the role of incumbents and various forms of incumbencies. We identify shortcomings of existing research, notably a tendency to portray incumbents as ‘villains’ wedded to resisting, slowing down or preventing transition efforts. With that in mind, the Viewpoint briefly summarises shortcomings within existing research and proposes four steps for pluralising the discussion. We call attention to more emphasis on 1) a multiplicity of incumbent actor types, 2) a variety of actor strategies within (and across) organisational populations, 3) the transient nature of strategic positioning (over time), and 4) the varied resources that incumbents may deploy to support transformative change.

Wildlife species as reservoirs of infectious pathogens represent a serious constraint in the implementation of disease management strategies. In the Mediterranean island of Corsica, the dynamics of hepatitis E virus (HEV) and Aujeszky's disease virus (ADV) are suspected to be influenced by interactions between wild and domestic pigs. To improve our understanding of these influences, we first compared the seroprevalences of both viruses in domestic pig populations from different locations with contrasted levels of wild-domestic interactions, ADV vaccination, biosafety, and farm husbandry. Second, we performed an analysis at a more restricted geographical scale, to assess the matching of ADV or HEV prevalence between sympatric wild boar and outdoor pig farms most exposed to interactions with wildlife. Logistic models were adjusted to the observed data. A high seroprevalence of HEV (>80%) and ADV (40%) in pigs, with no significant difference according to the region, confirms that both pathogens are enzootic in Corsica. Vaccination against ADV had a strong protective effect, even when performed voluntarily by farmers. Farm biosafety had an additional effect on pigs' exposure, suggesting that contact between wild boars and pigs were involved in disease transmission. A strong correlation in HEV seroprevalence was observed between pigs and wild boars that were in close contact, and significantly lower seroprevalence was observed in pigs when they had little contact with wild boars due to spatial segregation. These results suggest a regular HEV circulation between sympatric wild boar and domestic pigs. The high HEV seroprevalence observed in domestic pigs (>80%) suggests a spillover of the virus from domestic to wild populations through environmental contamination, but this hypothesis has to be confirmed. Conversely, even though avoiding sows' release on pasture during estrus showed some protecting effect in the free ranging pig farms regarding ADV, ADV seroprevalence was not dependent on the swine populations (wild or domestic) or on the wild-domestic spatial overlap, suggesting two quasi-separate enzootic cycles. This information will prove useful for designing more efficient disease management strategies in Corsica and similar contexts.

The Internet of Things (IoT) is now destroying the barriers between the real and digital worlds. However, one of the huge problems that can slow down the development of this global wave, or even stop it, concerns security and privacy requirements. The criticality of these latter comes especially from the fact that the smart objects may contain very intimate information or even may be responsible for protecting people’s lives. In this paper, the focus is on access control in the IoT context by proposing a dynamic and fully distributed security policy. Our proposal will be based, on one hand, on the concept of the blockchain to ensure the distributed aspect strongly recommended in the IoT; and on the other hand on machine learning algorithms, particularly on reinforcement learning category, in order to provide a dynamic, optimized and self-adjusted security policy.

Transitions intermediaries—agents who connect diverse groups of actors involved in transitions processes and their skills, resources and expectations—are becoming more prominent in research on low-carbon transitions. Most work, however, has focused on their ability to push innovations or emerging technologies forward, emphasising their involvement in disrupting incumbent regimes or firms. However, in focusing on new entrants, often at the grassroots level, such literature runs the risk of overlooking the potentially positive role that incumbent transition intermediaries—those oriented to work with or centrally consider the interests of dominant government, market or civic stakeholders—can play in meeting sustainable energy and transport goals. In this paper, we focus specifically on five different incumbent transition intermediaries—Smart Energy GB in the United Kingdom, Energiesprong in the Netherlands, SULPU in Finland, CERTU in France, and the Norwegian Electric Vehicle Association —and explain their efforts to meet socially desirable goals of accelerating innovation or decarbonizing energy or transport systems. We ask: Why were these intermediaries created, and what problems do they respond to? How do they function? What are their longer-term strategies and aspirations? In what ways do they reflect, reinforce, or otherwise shape incumbency? In answering these questions via a comparative case study approach, the paper aims to make contributions to the study of incumbency and intermediation in the context of transitions, to identifying different types of incumbent intermediaries (market, governmental, civic), and to informing debates over energy and climate policy and politics.

Où trouver une main-d’oeuvre abondante, motivée et gratuite pour émettre un billet de train, fournir des photos d’actualité, concevoir une publicité ou dépanner une installation Internet ? Une solution, promue par le marketing et facilitée par les technologies, consiste à mettre les consommateurs au travail. La coproduction dans les services est avérée depuis longtemps, mais la sociologie s’est rarement penchée sur l’activité même des consommateurs. Partant de situations quotidiennes dans des services marchands (transports, banque, supermarchés, restauration, médias, culture, réseaux sociaux, etc.), l’auteure identifie trois formes dans leur mise au travail : l’autoproduction dirigée, la coproduction collaborative et le travail d’organisation. Le consommateur se fait tour à tour guichetier, concepteur, prescripteur, producteur, réparateur, formateur, acheteur, expert et même manager. Qu’il travaille pour consommer ou qu’il produise pour avoir le plaisir de travailler, son activité est organisée dans un rapport social nouveau, qui crée de la valeur pour l’entreprise. Mais comment faire travailler un consommateur alors qu’il n’est ni un professionnel ni un employé ? Que fait-il réellement ? Consent-il à travailler ? Quelles sont les formes de coopération, de conflit et de régulation dans cette division du travail ? La seconde édition de cet ouvrage comporte une postface inédite sur l’actualité de la recherche internationale sur ce sujet et un retour sur le concept de « travail ». Un livre essentiel pour comprendre les transformations actuelles du capitalisme.

Here, we report a new synthetic route for spherical small copper nanoparticles (CuNPs) with size ranging from 3.5 nm to 11 nm and with an unprecedented associated monodispersity (<10%). This synthesis is based on the reduction of an organometallic precursor (CuCl(PPh3)3) by tert-butylamine borane in the presence of dodecylamine (DDA) at a moderate temperature (50 to 100 °C). Because of their narrow size distribution, the CuNPs form long-range 2D organizations (several μm(2)). The wide range of CuNPs sizes is obtained by controlling the reaction temperature and DDA-to-copper phosphine salt ratio during the synthesis process. The addition of oleic acid (OA) after the synthesis stabilizes the CuNPs (no coalescence) for several weeks under a nitrogen atmosphere. The nature and the reactivity of the ligands were studied by IR and UV-visible spectroscopy. We thus show that just after synthesis the nanoparticles are coated by phosphine and DDA. After adding OA, a clear exchange between phosphine and OA is evidenced. This exchange is possible thanks to an acid-base reaction between the free alkylamine in excess in the solution and OA. OA is then adsorbed on the NPs surface in the form of carboxylate. Furthermore, the use of oleylamine (OYA) instead of DDA as the capping agent allows one to obtain other NP shapes (nanorods, triangles and nanodisks). We get evidence that OYA allows the selective adsorption of chloride ions derived from the copper precursor on the different crystallographic faces during the growth of CuNPs that induces the formation of anisotropic shapes such nanorods or triangles.

International audience

The future is, as Arjun Appadurai (2013) puts it, a "cultural fact". Anticipatory practices -prophecies, utopias, predictions, forecasts, or scenarios -fulfil important societal functions in pre-modern and modern societies alike They provide orientation in social interactions (Luhmann, 1997), shape expectations in market transactions Since World War II, such practices have undergone a process of scientisation and professionalisation. Formalised approaches draw on cybernetics, cognitive and behavioural sciences, gaming and econometrics, as well as techniques of computational modelling and simulation. They were forged in Cold War think tanks such as the US RAND Corporation (Andersson, 2012) and the International Institute for Applied Systems Analysis (IIASA) in Laxenburg, Austria

This article deals with the productive activities carried out by consumers, supervised by the suppliers for their profit, in the market economy. There is abundant managerial literature on this topic. A corpus of marketing texts shows that putting consumers to work is a specific aim of those responsible for organizing work in companies. Sociological studies followed, but in unsystematic and sectorized ways. This article analyses consumer activity itself, using the concepts and tools of the sociology of work. The four aspects of consumer activity are described: the way it is prescribed and organized, the actual work done, the output, and the meaning it has for those who carry it out. With this theoretical frame and an empirical survey, I identify three ways in which the consumer is put to work: in addition to the forms of work that have already been clearly identified, that is, self-service and collaborative coproduction, which I discuss here, I consider “organizational work.”

International audience

This article describes the appearance of a solidarity economy movement in different national and continental contexts, stressing the diversity of practices within civil society at local and international level. Emerging in the last decades, these initiatives, which are both political and economic in nature, have extended and renewed the social economy, thereby offering a concrete alternative at a time of capitalist crisis. As such, the movement cannot be overlooked in the quest for a new economic model and public action.

Secteur professionnel, scènes locales, under­ground, acteurs publics s'y côtoient. Ils agissent parfois de concert, parfois de manière antagoniste. À la lecture de ce livre, on comprend ainsi de quelles manières et par quels mécanismes la musique que nous partageons quotidiennement est produite.Proposant une sociologie qui tient compte de données culturelles, sociales, historiques et économiques, cet ouvrage analyse les processus d'élaboration des musiques amplifiées en France.Il montre d'abord comment s'est structurée dès la première moitié du XXe siècle une industrie de la musique, centrée sur Paris, par la montée en puissance d'un secteur économique et l'institutionnalisation de fonctions spécifiques dans les secteurs du disque, des médias, et du spectacle.Il met ensuite en évidence la manière dont ont pu émerger, suite au développement générationnel de la pratique de ces musiques et à la structuration de scènes locales sur le territoire français, des sources de production et de diffusion se revendiquant alternatives à cette industrie.Enfin, à travers une enquête de terrain, il explicite comment se déploient aujourd'hui les cultures musicales amplifiées qui touchent à la fois, le plus souvent au sein de collectifs, des musiciens amateurs et d'autres qui cherchent à se professionnaliser. En interrogeant l'articulation entre phénomènes globaux et pratiques quotidiennes liées à la musique en France, l'étude met ainsi à jour comment les normes et les usages technologiques, économiques ou juridiques influencent la production de la culture.

This work deals with the design of a high sensitivity DNA sequence detector using a 50 MHz quartz crystal microbalance (QCM) electronic oscillator circuit. The oscillator circuitry is based on Miller topology, which is able to work in damping media. Calibration and experimental study of frequency noise are carried out, finding that the designed sensor has a resolution of 7.1 ng/cm(2) in dynamic conditions (with circulation of liquid). Then the oscillator is proved as DNA biosensor. Results show that the system is able to detect the presence of complementary target DNAs in a solution with high selectivity and sensitivity. DNA target concentrations higher of 50 ng/mL can be detected.

The concept of frailty as a health dimension in old age is recent and has its origin in the development of geriatric medicine. Initially an unformulated clinical intuition, it is now defined by a diminished physiological reserve of multiple organs that exposes older individuals to increased vulnerability to stressors and a higher risk of adverse outcomes. The operational definition of frailty, however, is still debated. From a diversity of models, two emerged in the early 2000s from epidemiological studies conducted in large population-based aging cohorts. The body of research emphasized prospective associations between a frailty phenotype and a range of adverse outcomes or between a frailty index measuring the accumulation of deficits and death. A few studies showed promising spontaneous remissions in the early stages of frailty, raising expectations for effective interventions. Transitions between frailty stages and effective interventions on frailty nevertheless remain two fields needing further investigation. More recently, these tools have been applied as screening instruments in clinical settings to guide individual decision-making and orient treatments. New questions are raised by the use of instruments developed to screen frailty in epidemiological research for assessing individual situations. Inquiring whether frailty screening is relevant opens a Pandora's box of doubts and debates. There are many reasons to screen for frailty both from a public health and a clinical perspective that are only exacerbated by the current demographic evolution. Open questions remain about the feasibility of frailty screening, the properties of screening tools, the relevance of an integration of socioeconomic dimensions into screening tools, and the effectiveness of interventions targeting frailty. Fifteen years after the publication of the Fried and Rockwood landmark papers proposing operational definitions of frailty, this article presents an overview of current perspectives and issues around frailty screening in populations and in individuals.

AIMS: We assess the cost-effectiveness of dental implant first-line strategy vs. fixed partial denture strategy in patients suffering from one single missing tooth. MATERIALS AND METHODS: The model used a simulation decision framework over a 20-year period. Potential treatment switches can occur every 5 years. Transition probabilities come from literature, epidemiological reports or expert opinions. They have been programmed using specific distribution ranges to simulate the patients' and practice variability, and to take into account parameter uncertainty. Direct medical costs have been assessed according to a cost survey. Probabilistic sensitivity analyses were conducted using 5000 Monte-Carlo simulations, generating confidence intervals of model outcomes. RESULTS: We found that mean cost-effectiveness of the bridge strategy is higher than the implant strategy. CONCLUSION: Implant as the first-line strategy appears to be the 'dominant' strategy, considering the lower overall costs and the higher success rate.

The Tau model of phenotypic transmission has been used to analyze the familial correlations (nuclear families and extended families) of longevity at Arthez d'Asson (individuals born between 1686 and 1899). At birth, the transmissibility (t2) is very weak: 0.103; at 20 years old, t2 = 0.167; at 50 years old, t2 = 0.294. The effect of sibling environment on children's phenotype is s = 0.086 at birth, is thus null. A cohabitional effect between spouses: p = 0.167 appears after 50 years. There is no social homogamy effect via grandparents.

Attention in the literature on global climate politics has recently turned from a focus on intergovernmental negotiations to conceptualizing climate governance ‘beyond’ or ‘outside’ the UN regime. However, this literature differs on three key aspects: the underlying research paradigms, what is identified as the heart of the problem, and proposed solutions. One group of scholars calls for an attention shift from the ‘tip of the iceberg’ of climate governance to its much larger ‘hidden parts,’ conceptualized through notions such as the ‘climate change regime complex,’ a ‘fragmented climate governance architecture,’ and ‘transnational climate governance.’ A second set of authors points to the ‘elephant in the room,’ namely underlying power structures and material configurations in the international system that block effective responses to the climate crisis. A third group has argued that instead of looking at the individual ‘trees’ of climate negotiations, research should focus on the ‘forest’ of climate governance, made up of framings, norms, and emerging ‘climate governmentalities.’ The article proposes the concept of a ‘schism of reality’ as a means to overcome this fragmentation of the literature. This notion offers a new way of understanding interactions between the climate regime and its wider environment by focusing on discrepancies and contradictions. It accommodates different theoretical perspectives and provides common ground for future research: on how paradoxes and contradictions are dealt with in climate governance; how they can be overcome; how current developments in climate governance reduce the schism; and where and why aspects of the schism persist. WIREs Clim Change 2016, 7:318–328. doi: 10.1002/wcc.391 This article is categorized under: Policy and Governance &gt; International Policy Framework