Portail HAL UHA (Université de Haute-Alsace)
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    15686 research outputs found

    Introduction : Former aux métiers de la traduction aujourd'hui et demain

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    International audienceIntroduction au volume collectif Former aux métiers de la traduction aujourd'hui et demain

    Pellet combustion: strategies for the reduction of pollutant emissions

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    Recycled but devalued? Exploring the social representations of recycled clothing

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    International audiencePurpose : This study explores consumer perceptions of recycled clothing (RC) through the lens of social representations (SRs) theory. It examines key factors influencing consumer attitudes, including perceived quality, environmental value, and health concerns, while identifying barriers to RC adoption. Design/methodology/approach : A mixed-methods approach was used, combining qualitative and quantitative data collection. Social representations theory provided a framework to analyze shared beliefs, stereotypes, and cognitive structures shaping consumer perceptions. The study assessed the role of knowledge, perceived risks, and prior exposure to RC in shaping consumer behavior. Findings : Results indicate that consumers strongly associate RC with recycled plastic, which generates both positive and negative connotations. While RC is viewed as environmentally friendly, concerns about material quality and health risks persist. The study also highlights the gap between attitudes and behaviors, as affordability and accessibility continue to drive fast fashion consumption despite sustainability concerns. Effective communication strategies, including transparency, education, and influencer marketing, can help improve perceptions and encourage RC adoption. Research limitations/implications : Future research should explore cross-cultural differences in RC perceptions and test the effectiveness of different communication strategies in shifting SRs. Practical implications : Brands should enhance transparency, emphasize material variety, and implement in-store and digital educational initiatives to reshape consumer perceptions of RC. Social implications : Encouraging RC adoption can contribute to waste reduction, resource conservation, and the development of new recycling sectors, enhancing employability in the fashion industry. Originality/value : Unlike prior studies focusing solely on individual attitudes, this study emphasizes the collective construction of meaning in shaping consumer behavior

    Unlocking the Microbiome-Metabolome Nexus for Innovative One-Health Solution

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    Microbial communities, encompassing a vast taxonomic diversity, are fundamental to ecosystem integrity, biogeochemical cycles, and the health of humans, animals, and plants, along the One Health concept. A major scientific goal is to understand how these complex consortia function, interact, and adapt to environmental changes. Microbial meta-metabolomics has emerged as a powerful approach to tackle this by characterizing the collective metabolome of an entire community, linking it to environmental conditions and biogeochemical processes. It captures the functional output of both cultivable and uncultivable organisms, tracing chemical interactions and the impact of environmental perturbations. However, while meta-metabolomics provides a comprehensive snapshot of community chemistry, it alone cannot decipher the precise dynamics of which microorganisms are producing metabolites, when, where, and why. To address this, we propose the Microbial Metabolomics Framework (MiMetWork). This novel framework expands beyond descriptive meta-metabolomics to integrate spatial and temporal metabolomic characterizations with other omics data and phenotyping techniques. MiMetWork employs high-throughput screening of various microbiome components—from single cells to complex communities—under controlled conditions to elucidate ecophysiological functions and interaction mechanisms. By combining untargeted and targeted metabolomic datasets with microbial composition and pathway information, MiMetWork aims to build causal models of microbiome function and adaptation. This review outlines how this integrative framework leverages technological advances to elucidate microbiome interactions and functional responses across human, animal, and environmental niches, thereby addressing critical research gaps and enhancing our predictive understanding of microbiomes within the One Health paradigm

    Does the ecological transition pose a threat to the cultural worldview of the responsibilized consumer?: An exploration of social justice concerns within national sustainability policies.

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    International audienceIn line with the European Green Deal, national governments across Europe have introduced a wide array of regulatory, incentive-based and facilitative measures to accelerate the ecological transition. These policies have substantial implications for household consumption. This research investigates how such national sustainability measures impact the cultural worldview of the responsibilised consumer—a central figure in neoliberal approaches to sustainability, defined by a moral agency oriented toward informed climate-friendly choices. While prior studies show that even environmentally concerned consumers can experience psychological and social tensions when adopting particular prescribed conduct, consumer research has rarely examined how individuals interpret ecological measures holistically and relate them to the broader cultural standards that underpin the value of individual conduct. In particular, moral concerns about social justice—despite their prominence in recent public debates and protest movements—remain understudied in marketing research on the ecological transition.Drawing on the theoretical lens of expectation violations, we examine whether the sustainability policy landscape, taken as a whole, may threaten the social stability of consumers’ worldviews, thereby generating cognitive dissonance and weakening identification with responsibilisation. We adopt an exploratory sequential mixed-methods design. Study 1 consists of qualitative interviews in France (n = 43), which reveal that ecological transition policies are perceived as raising major social justice issues. These perceptions cluster around three types of threats to social stability: (1) technological inequalities affecting older or digitally excluded consumers; (2) territorial disparities in public infrastructure between urban and rural areas; and (3) income-based barriers to accessing green products. Building on these insights, Study 2 uses an online experiment (n = 300) to test the effects of a sustainability measure involving territorial inequalities. Results show that perceived threats to societal stability significantly mediate the relationship between the ecological measure which is associated with territorial inequalities and cognitive dissonance.This research extends the existing literature on consumer responsibilisation by shifting the focus from discrete consumption practices to consumers' justice-related interpretations of the ecological transition as a policy system. The study demonstrates the value of drawing on consumers' cultural worldviews to fully grasp the issues at stake in terms of the acceptability of transition measures. From a policy standpoint, the findings emphasise the necessity for more inclusive sustainability narratives and infrastructural strategies that acknowledge social and territorial inequalities. This is an essential condition for avoiding disidentification with ecological objectives and securing broader public support for the transition

    André Gide, Poesie

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    International audienceIL LIBRORomanziere, saggista, “contemporaneo capitale”, André Gide (1869-1951) ha fatto parlare di sé per le sue posizioni sociali e politiche e per la sua opera, insignita del premio Nobel per la letteratura nel 1947. Se i suoi scritti in prosa fanno parte dei classici del Novecento, meno conosciuta è la sua produzione poetica. Eppure Gide ha scritto poesia per tutta la vita: dai testi di gioventù pubblicati nel suo diario o in piccole riviste, fino ai brani che sono entrati poi a fare parte delle sue opere più celebri, come ilprosimetro I nutrimenti terrestri. Eccezion fatta per alcuni testi riuniti dall’autore nelle Œuvres complètes, le poesie di Gide sono intercalate alle sue opere letterarie in prosa, oppure disseminate nel Diario e in gior-nali e riviste ormai quasi introvabili. Il presente volume, frutto della collaborazione di una rodata équipe “poetico-universitaria” di traduttrici e curatrici, riunisce per la prima volta circa settanta testi, divisi in cinque sezioni, affiancandole alla loro traduzione in italiano e a un ricco paratesto. Considerando nel suo divenire un autore considerato “classico”, si tratta di seguirlo nella ricerca di quel “dolce accento”, di quella “rima lieve”, di quella voce poetica da cui non può prescindere la sua intera opera.L’AUTOREAndré Gide nasce a Parigi il 22 novembre 1969, da una famiglia dell’alta borghesia protestante. Altalenante negli studi, preferisce dedicarsi alla musica e alla scrittura. Le sue prime opere hanno un sapore ancoraromantico, poi simbolista; ma ben presto Gide si affranca dalle poetiche fin de siècle alla ricerca di una sua voce che coniughi limpidezza nella forma e profondità psicologica nel contenuto. Durante i primi viaggi, gli si rivela la sua omosessualità così come, più in generale, la sensualità della vita. Quando non viaggia, Gide vive tra Parigi e la Normandia. Nel 1895, sposa la cugina Madeleine Rondeaux. Accanto alla scrittura letteraria, coltiva corrispondenze con scrittori di tutta Europa ed è all’origine di importanti iniziative culturali come la Nouvelle Revue française. Assume posizioni pubbliche che suscitano polemiche e critiche, come la denuncia delle condizioni di sfruttamento in Africa, l’adesione e l’allontanamento dalcomunismo in seguito a un viaggio in URSS. Le sue opere creano scandalo, allo stesso tempo, sul piano politico e morale. Nel 1923, nasce Catherine, figlia di Gide e di Elisabeth Van Rysselberghe. Nel 1947,Gide è insignito del Premio Nobel. Muore a Parigi il 19 febbraio 1951. Nel 1952, l’insieme della sua opera è messo all’Indice dalla Chiesa cattolica

    Real time visualization of particle corona formation using simple microfluidic devices

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    Insights into the Photostability of Ag–In–S–Zn Quantum Dots/Photopolymer Composites for Flexible Textile Applications

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    International audienceHeavy-metal-free Ag-In-Zn-S quantum dots (AIZS QDs) stand as promising alternatives to the well-known cadmium or lead-based QDs. Similarly to their copper counterparts, alloyed or core/ shell AIZS QDs exhibit size-and composition-dependent photoluminescence (PL), which can be tuned from the visible to the nearinfrared. The current challenge lies in preserving the exceptional optical properties of these nanocrystals, which are known to be particularly susceptible to environmentally induced degradation. Although rigid polymers have been regarded as viable stabilizing host materials, flexible polymers are being actively investigated, as they offer a wider range of applications. Synthesized via a hot-injection method, the studied AIZS QDs were confined inside a flexible acrylate matrix and UV-polymerized onto textile substrates in less than 30 s. The resulting materials exhibited intense yellow PL but underwent photobleaching under LED exposure (emission loss over 55% after 30 min). After the degradation processes at play were identified, several stabilizing strategies were addressed by modifying either the nanocrystal structure or the polymer matrix. The most efficient involved confining the QDs inside flexible acrylate hydrogels, which reduced the PL emission loss from 55% to below 10% after 30 min of LED irradiation and enabled a sustained PL enhancement of up to +125% under continuous illumination over 15 days in humid/aqueous environments

    Vers une évaluation hyper-moderne des politiques publiques

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    National audienceDepuis son origine en contexte public, l’évaluation des politiques a connu différentes formes. D’abord, une évaluation qualifiée d’« administrative », inscrite dans une logique hiérarchique et centrée sur la conformité procédurale. Ensuite, une évaluation « managériale » portée par les principes du New Public Management (NPM), valorisant la performance, la responsabilisation individuelleet l’usage d’indicateurs quantitatifs. Enfin, une évaluation plus « collaborative et ouverte », intégrant la réflexivité, la participation et la prise en compte du contexte social et territorial de l’action publique, en intégrant des approches post-NPM, plus récentes. Pourtant, malgré ces évolutions, l’évaluation des politiques publiques est actuellement critiquée, que cela soit sur le plan conceptuel ou sur celui plus pratique. Une évaluation renouvelée semble alors nécessaire !

    New coupling method for anchoring molecularly imprinted polymers onto polymeric transducers: A case study for the detection of the heart failure biomarker Troponin T

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    International audienceMolecularly imprinted polymer nanogels (MIP-NGs) prepared by solid-phase synthesis are attractive as recognition elements in sensors as they offer the advantages of having surface-exposed binding sites, favoring rapid binding kinetics and fast response. On the other hand, transducers like optical fibers meet the needs of contemporary analysis and detection due to their ease of miniaturization, portability and implementation in remote areas. Generally, chemical grafting as opposed to physical coating of the MIP-NGs on the optical fibers is recommended, to ensure sensor stability. To this end, we developed a novel immobilization protocol introducing azido moieties onto polymer microstructures fabricated at the end of a standard telecommunication optical fiber, enabling the anchoring of propargylated MIP-NGs (MIP-ynes) by click chemistry. The set-up was then tested as a proof of concept with MIPs specific for cardiac troponin T (cTnT), a biomarker of myocardial injury. The MIP-NGs were prepared by solid-phase epitope imprinting, whereby the epitope was selected using a rational in silico approach, recently developed in-house. The resultant MIP-NGs were monodisperse and bound recombinant human cTnT with a high affinity and selectivity. MIP-ynes were immobilized on optical fibers using a multi-step process based on initially grafting a visible light trithiocarbonate photoiniferter, followed by surface-initiated photopolymerization of a polymer layer in order to introduce azido moieties on the fiber, and then by MIP attachment using azide-alkyne cycloaddition. The MIP-NGs anchored on the optical fiber recognized a fluorescent epitope peptide of cTnT, opening new horizons for optical fiber sensing with MIPs

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    Portail HAL UHA (Université de Haute-Alsace) is based in France
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