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  • 1
    Online Resource
    Online Resource
    SAGE Publications ; 2023
    In:  Discourse & Communication Vol. 17, No. 5 ( 2023-10), p. 613-629
    In: Discourse & Communication, SAGE Publications, Vol. 17, No. 5 ( 2023-10), p. 613-629
    Abstract: This paper provides an integrated social semiotic framework for analyzing intertextuality in multimodal advertising discourse. Following the distinction between manifest intertextuality and interdiscursivity, our model entails the three interrelated components of explicating what the intertextual sources are, how they are constructed with multimodal resources, and how they interact with the promotional discourse. Analysis of 30 popular video advertisements shows the fundamental role of character voices and different social semiotic activities in achieving the purpose of promoting products and services. Through intertextual devices, the advertisements construct multiple identities, including authoritative and peer ones, to evoke different reading positions. In particular, the identity of middle-class urbanites sharing their experiences and values with the audience is dominant. The intertextual devices achieve promotional, relational, and entertainment functions, and the promotional function is realized through sharing, recreating, expounding, and reporting activities, while the recommending activities only occupy a very small portion of the screen time of the advertisements. The framework of multimodal intertextuality provides a useful lens for explicating the complex meaning-making resources, their communicative functions, and hidden ideologies in advertising discourse, which can further provide new insight into the social reality.
    Type of Medium: Online Resource
    ISSN: 1750-4813 , 1750-4821
    RVK:
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2023
    detail.hit.zdb_id: 2272946-X
    SSG: 3,4
    SSG: 7,11
    SSG: 3,5
    Location Call Number Limitation Availability
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  • 2
    Online Resource
    Online Resource
    Proceedings of the National Academy of Sciences ; 2011
    In:  Proceedings of the National Academy of Sciences Vol. 108, No. 31 ( 2011-08-02), p. 12943-12948
    In: Proceedings of the National Academy of Sciences, Proceedings of the National Academy of Sciences, Vol. 108, No. 31 ( 2011-08-02), p. 12943-12948
    Abstract: Many drugs are nature derived. Low drug productivity has renewed interest in natural products as drug-discovery sources. Nature-derived drugs are composed of dozens of molecular scaffolds generated by specific secondary-metabolite gene clusters in selected species. It can be hypothesized that drug-like structures probably are distributed in selective groups of species. We compared the species origins of 939 approved and 369 clinical-trial drugs with those of 119 preclinical drugs and 19,721 bioactive natural products. In contrast to the scattered distribution of bioactive natural products, these drugs are clustered into 144 of the 6,763 known species families in nature, with 80% of the approved drugs and 67% of the clinical-trial drugs concentrated in 17 and 30 drug-prolific families, respectively. Four lines of evidence from historical drug data, 13,548 marine natural products, 767 medicinal plants, and 19,721 bioactive natural products suggest that drugs are derived mostly from preexisting drug-productive families. Drug-productive clusters expand slowly by conventional technologies. The lack of drugs outside drug-productive families is not necessarily the result of under-exploration or late exploration by conventional technologies. New technologies that explore cryptic gene clusters, pathways, interspecies crosstalk, and high-throughput fermentation enable the discovery of novel natural products. The potential impact of these technologies on drug productivity and on the distribution patterns of drug-productive families is yet to be revealed.
    Type of Medium: Online Resource
    ISSN: 0027-8424 , 1091-6490
    RVK:
    RVK:
    Language: English
    Publisher: Proceedings of the National Academy of Sciences
    Publication Date: 2011
    detail.hit.zdb_id: 209104-5
    detail.hit.zdb_id: 1461794-8
    SSG: 11
    SSG: 12
    Location Call Number Limitation Availability
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