47 research outputs found
Cambodge
As ASEAN Chair in 2022, Cambodia navigated through a complex geopolitical environment, with the heightened rivalry between China and the United States, the Russia-Ukraine conflict and the Myanmar crisis. While 2022 saw the return of tourists and foreign investors, and the economic outlook looks promising for 2023, there are signs that Cambodia is still recovering from the various effects of the covid-19 pandemic. For most Cambodians, 2022 was dominated by inflationary pressures driven by higher global fuel and fertilizer prices, and economic hardships due to growing risks posed by climate change. These issues work as more or less visible tension lines, and contribute to increasing social and economic inequalities at different scales. Within this context, the Government strengthened state control and stepped up its means of oppression against its critics. Ahead of the national elections in 2023, the ruling party won the local elections in June and endorsed Prime Minister Hun Senâs eldest son as the next prime ministerial candidate
I'm Transforming! Effects of Visual Transitions to Change of Avatar on the Sense of Embodiment in AR
International audienceVirtual avatars are more and more often featured in Virtual Reality (VR) and Augmented Reality (AR) applications. When embodying a virtual avatar, one may desire to change of appearance over the course of the embodiment. However, switching suddenly from one appearance to another can break the continuity of the user experience and potentially impact the sense of embodiment (SoE), especially when the new appearance is very different. In this paper, we explore how applying smooth visual transitions at the moment of the change can help to maintain the SoE and benefit the general user experience. To address this, we implemented an AR system allowing users to embody a regular-shaped avatar that can be transformed into a muscular one through a visual effect. The avatarâs transformation can be triggered either by the user through physical action (âactiveâ transition), or automatically launched by the system (âpassiveâ transition). We conducted a user study to evaluate the effects of these two types of transformations on the SoE by comparing them to control conditions where there was no visual feedback of the transformation. Our results show that changing the appearance of oneâs avatar with an active transition (with visual feedback), compared to a passive transition, helps to maintain the userâs sense of agency, a component of the SoE. They also partially suggest that the Proteus effects experienced during the embodiment were enhanced by these transitions. Therefore, we conclude that visual effects controlled by the user when changing their avatarâs appearance can benefit their experience by preserving the SoE and intensifying the Proteus effects
Evaluation of cataract formation in fish exposed to environmental radiation at Chernobyl and Fukushima
Recent studies apparently finding deleterious effects of radiation exposure on cataract formation in birds and voles living near Chernobyl represent a major challenge to current radiation protection regulations. This study conducted an integrated assessment of radiation exposure on cataractogenesis using the most advanced technologies available to assess the cataract status of lenses extracted from fish caught at both Chernobyl in Ukraine and Fukushima in Japan. It was hypothesised that these novel data would reveal positive correlations between radiation dose and early indicators of cataract formation.The structure, function and optical properties of lenses were analysed from atomic to millimetre length scales. We measured the short-range order of the lens crystallin proteins using Small Angle X-Ray Scattering (SAXS) at both the SPring-8 and DIAMOND synchrotrons, the profile of the graded refractive index generated by these proteins, the epithelial cell density and organisation and finally the focal length of each lens.The results showed no evidence of a difference between the focal length, the epithelial cell densities, the refractive indices, the interference functions and the short-range order of crystallin proteins (X-ray diffraction patterns) in lens from fish exposed to different radiation doses. It could be argued that animals in the natural environment which developed cataract would be more likely, for example, to suffer predation leading to survivor bias. But the cross-length scale study presented here, by evaluating small scale molecular and cellular changes in the lens (pre-cataract formation) significantly mitigates against this issue
Alibaba, un projet dâavenir pour la Wallonie ?
Dans la matinĂ©e du mercredi 5 dĂ©cembre 2018, le gouvernement fĂ©dĂ©ral vacille. Le Premier ministre doit prendre la parole devant la Chambre, mais ce matin-lĂ , Charles Michel est Ă lâaĂ©roport de LiĂšge, pour la signature de lâarrivĂ©e du gĂ©ant chinois du commerce en ligne, Alibaba, via sa filiale Cainiao. « Un jour historique », selon lui
LâAsie du Sud-Est 2023 : bilan, enjeux et perspectives
Chaque annĂ©e, lâInstitut de recherche sur lâAsie du Sud-Est contemporaine (IRASEC), basĂ© Ă Bangkok, mobilise une vingtaine de chercheurs et dâexperts pour mieux comprendre lâactualitĂ© rĂ©gionale de ce carrefour Ă©conomique, culturel et religieux, au cĆur de lâIndo-Pacifique. Cette collection permet de suivre au fil des ans lâĂ©volution des grands enjeux contemporains de cette rĂ©gion continentale et archipĂ©lagique de plus de 680 millions dâhabitants, et dâen comprendre les dynamiques dâintĂ©gration rĂ©gionale et de connectivitĂ©s avec le reste du monde. LâAsie du Sud-Est 2023 propose une analyse synthĂ©tique et dĂ©taillĂ©e des principaux Ă©vĂ©nements politiques et diplomatiques, ainsi que des Ă©volutions Ă©conomiques, sociales et environnementales de lâannĂ©e 2022 dans chacun des onze pays de la rĂ©gion. Ce dĂ©cryptage est complĂ©tĂ© pour chaque pays par un focus sur deux personnalitĂ©s de lâannĂ©e et une actualitĂ© marquante en image. Lâouvrage propose Ă©galement cinq dossiers thĂ©matiques qui abordent des sujets traitĂ©s Ă lâĂ©chelle rĂ©gionale sud-est asiatique : les ressorts institutionnels de lâapproche de santĂ© intĂ©grĂ©e One Health, le vieillissement de la population et sa prise en compte par les politiques publiques, les cĂąbles sous-marins au cĆur de la connectivitĂ© sud-est asiatique, lâamĂ©nagement du bassin du MĂ©kong et ses multiples acteurs, et les enjeux politiques et linguistiques des langues transnationales. Des outils pratiques sont Ă©galement disponibles : une fiche et une chronologie par pays et un cahier des principaux indicateurs dĂ©mographiques, sociaux, Ă©conomiques et environnementaux
Margarita de Sossa, Sixteenth-Century Puebla de los Ăngeles, New Spain (Mexico)
Margarita de Sossaâs freedom journey was defiant and entrepreneurial. In her early twenties, still enslaved in Portugal, she took possession of her body; after refusing to endure her ownerâs sexual demands, he sold her, and she was transported to Mexico. There, she purchased her freedom with money earned as a healer and then conducted an enviable business as an innkeeper. Sossaâs biography provides striking insights into how she conceptualized freedom in terms that included â but was not limited to â legal manumission. Her transatlantic biography offers a rare insight into the life of a free black woman (and former slave) in late sixteenth-century Puebla, who sought to establish various degrees of freedom for herself. Whether she was refusing to acquiesce to an abusive owner, embracing entrepreneurship, marrying, purchasing her own slave property, or later using the courts to petition for divorce. Sossa continued to advocate on her own behalf. Her biography shows that obtaining legal manumission was not always equivalent to independence and autonomy, particularly if married to an abusive husband, or if financial successes inspired the envy of neighbors
Karine Meslin, Les réfugiés du Mékong. Cambodgiens, Laotiens et Vietnamiens en France
Comblant une lacune des Ă©tudes migratoires, la sociologue Karine Meslin explore lâhistoire collective des ressortissants dâAsie du Sud-Est en France. Dans la lignĂ©e de son travail de thĂšse menĂ© auprĂšs de rĂ©fugiĂ©s cambodgiens des Pays-de-la-Loire, elle propose plus prĂ©cisĂ©ment de revisiter la situation des individus poussĂ©s Ă lâexil par le contexte politique de leurs pays dâorigine â rĂ©unification du Vietnam, arrivĂ©e au pouvoir du Pathet Lao au Laos et des Khmers rouges au Cambodge. En dĂ©voila..
Incarner un Avatar en Réalité Augmentée : Revue de la Littérature
En raison de la situation sanitaire actuelle (Covid-19), WACAI est reportĂ© du 02 au 04/06/2021International audienceLâobjectif de cet article est de passer en revue la littĂ©rature ayant pour sujet lâincarnation en rĂ©alitĂ© augmentĂ©e et les systĂšmes permettant de lâexpĂ©rimenter. Il commence par prĂ©ciser ce quâest un âavatarâ dans ce contexte et introduit les principaux concepts de la notion dâincarnation. Il dĂ©crit ensuite les travaux de recherche qui ont contribuĂ© Ă mieux la comprendre et Ă la mettre en place au sein dâun environnement rĂ©el. Dans cette partie, les connaissances sur les composantes du sentiment dâincarnation et sur les facteurs techniques qui lâaffectent sont exposĂ©es ainsi que les technologies et modes de visualisation utilisĂ©s pour lâĂ©tudier. Pour terminer, cet article rĂ©sume et discute de ces rĂ©sultats afin dâoffrir des perspectives de recherches
Being an Avatar "for Real": a Survey on Virtual Embodiment in Augmented Reality
International audienceVirtual self-avatars have been increasingly used in Augmented Reality (AR) where one can see virtual content embedded into physical space. However, little is known about the perception of self-avatars in such a context. The possibility that their embodiment could be achieved in a similar way as in Virtual Reality opens the door to numerous applications in education, communication, entertainment, or the medical field. This article aims to review the literature covering the embodiment of virtual self-avatars in AR. Our goal is (i) to guide readers through the different options and challenges linked to the implementation of AR embodiment systems, (ii) to provide a better understanding of AR embodiment perception by classifying the existing knowledge, and (iii) to offer insight on future research topics and trends for AR and avatar research. To do so, we introduce a taxonomy of virtual embodiment experiences by defining a "body avatarization" continuum. The presented knowledge suggests that the sense of embodiment evolves in the same way in AR as in other settings, but this possibility has yet to be fully investigated. We suggest that, whilst it is yet to be well understood, the embodiment of avatars has a promising future in AR and conclude by discussing possible directions for research
Virtual, Real or Mixed: How Surrounding Objects Influence the Sense of Embodiment in Optical See-Through Experiences?
International audienceThis paper studies the sense of embodiment of virtual avatars in Mixed Reality (MR) environments visualized with an Optical See-Through display. We investigated whether the content of the surrounding environment could impact the userâs perception of their avatar, when embodied from a first-person perspective. To do so, we conducted a user study comparing the sense of embodiment toward virtual robot hands in three environment contexts which included progressive quantities of virtual content: real content only, mixed virtual/real content, and virtual content only. Taken together, our results suggest that users tend to accept virtual hands as their own more easily when the environment contains both virtual and real objects (mixed context), allowing them to better merge the two âworldsâ. We discuss these results and raise research questions for future work to consider