936 research outputs found
Conservation : concept and reality.
Before any individual, organisation or discipline contemplates its future, it is prudent to know where it currently stands, where it has come from and what the world around it is like. Thus to start a conference on ‘Current Trends and Future Directions in Archaeological Conservation’, it is surely prudent to consider, if briefly, what we understand conservation to be i.e. the concept of conservation, and something of the history of conservation to show how we got here. We also need to understand the reality of the world in which conservation exists, what others expect from conservation and conservators
Inter-individual variation in nucleotide excision repair in young adults: effects of age, adiposity, micronutrient supplementation and genotype
Nucleotide excision repair (NER) is responsible for repairing bulky helix-distorting DNA lesions and is essential for the maintenance of genomic integrity. Severe hereditary impairment of NER leads to cancers such as those in xeroderma pigmentosum, and more moderate reductions in NER capacity have been associated with an increased cancer risk. Diet is a proven modifier of cancer risk but few studies have investigated the potential relationships between diet and NER. In the present study, the plasmid-based host cell reactivation assay was used to measure the NER capacity in peripheral blood mononuclear cells from fifty-seven volunteers aged 18–30 years before and after 6 weeks of supplementation with micronutrients (selenium and vitamins A, C and E). As a control, nine individuals remained unsupplemented over the same period. Volunteers were genotyped for the following polymorphisms in NER genes: ERCC5 Asp1104His (rs17655); XPC Lys939Gln (rs2228001); ERCC2 Lys751Gnl (rs13181); XPC PAT (an 83 bp poly A/T insertion–deletion polymorphism in the XPC gene). NER capacity varied 11-fold between individuals and was inversely associated with age and endogenous DNA strand breaks. For the first time, we observed an inverse association between adiposity and NER. No single polymorphism was associated with the NER capacity, although significant gene–gene interactions were observed between XPC Lys939Gln and ERCC5 Asp1104His and XPC Lys939Gln and ERCC2 Lys751Gnl. While there was no detectable effect of micronutrient supplementation on NER capacity, there was evidence that the effect of fruit intake on the NER capacity may be modulated by the ERCC2 Lys751Gnl single nucleotide polymorphism
What is news? News values revisited (again)
The deceptively simple question “What is news?” remains pertinent even as we ponder the future of journalism in the digital age. This article examines news values within mainstream journalism and considers the extent to which news values may be changing since earlier landmark studies were undertaken. Its starting point is Harcup and O’Neill’s widely-cited 2001 updating of Galtung and Ruge’s influential 1965 taxonomy of news values. Just as that study put Galtung and Ruge’s criteria to the test with an empirical content analysis of published news, this new study explores the extent to which Harcup and O’Neill’s revised list of news values remain relevant given the challenges (and opportunities) faced by journalism today, including the emergence of social media. A review of recent literature contextualises the findings of a fresh content analysis of news values within a range of UK media 15 years on from the last study. The article concludes by suggesting a revised and updated set of contemporary news values, whilst acknowledging that no taxonomy can ever explain everything
3D modelling of geological and anthropogenic deposits at the World Heritage Site of Bryggen in Bergen, Norway
The landscape of many historic cities and the character of their shallow subsurface environments are
defined by a legacy of interaction between anthropogenic and geological processes. Anthropogenic
deposits and excavations result from processes ranging from archaeological activities to modern urban
development. Hence, in heritage cities, any geological investigation should acknowledge the role of past
and ongoing human activities, while any archaeological investigation should be conducted with geological
processes in mind. In this paper it is shown that 3D geological and anthropogenic models at different scales
can provide a holistic system for the management of the subsurface. It provides a framework for the
integration of other spatial and processmodels to help assess the preservationpotential for buried heritage.
Such an integrated framework model is thus contributing to a decision support system for sustainable
urban (re)development and regeneration in cities, while preserving cultural heritage. A collaborative
approach is proposed to enhance research and implementation of combined geological and archaeological
modelling for sustainable land use planning and heritage preservation, using York and Bryggen as prime
examples. This paper presents the status of 3D framework modelling at Bryggen in Norway as an example
Playing with words and pictures : intersemiosis in a new genre of news reportage
The newspaper is dead. Long live the newspaper! It goes without saying that now, more than ever, newspapers, in their print form, are fighting for their very survival. It is also widely acknowledged that one of the greatest assets a newspaper has is its bond with its readers, and if newspapers are to stand up to the challenges of the 21st Century they need to nurture this bond or perish. One newspaper that does appear to have found an innovative way to build community among its readers is the Australian broadsheet newspaper The Sydney Morning Herald. At this newspaper, certain news stories are packaged in a way that foregrounds a play on words and pictures. This forms an evaluative stance on the news event being depicted and creates an opportunity for the newspaper to bond with its readers over this wit. The photographs used in these stories are also noted for their quality: their striking clarity and composition creating a certain aesthetic appeal. I have termed this news story genre the image-nuclear news story. Between June 2004 and August 2008, all image-nuclear news stories were actively collected from The Sydney Morning Herald. This produced a total of 1317 stories. A smaller corpus of 1000 stories was logged and analysed in a relational database. Building on social semiotic theories of language and images, this research project investigated the intersemiotic play established through the multiplication of meaning at the interface between words and images in the image-nuclear news story. The analysis also included investigation of the kinds of photographs that are commonly used in image-nuclear news stories both in terms of their news values and compositional/aesthetic qualities. Finally, the project examined the potential effects of this play and use of image for bonding and community building between newspapers and their readers, as well as between readers and the news events. The findings of this research suggest that the inclusion of stories such as image-nuclear news stories in the news story repertoire at The Sydney Morning Herald can be viewed as encouraging a readership that can pride itself in the knowledge that this newspaper caters to their extensive understanding of the world and to their wit. In turn, this means that this newspaper can establish a very powerful readership profile that can be easily packaged and sold to advertisers. This may also be viewed as an attempt by the newspaper to set itself apart from other news providers, maintaining readership loyalties through this special relationship with its readers, and thus prolonging the longevity of the newspaper amid the ever growing and sometimes fierce competition from other media platforms
A pragmatic cognitive model for the interpretation of verbal–visual communication in television news programmes
The combination of the verbal and the visual track in television news discourse poses a considerable analytical challenge. In the viewers’ minds the co-habitation of these two semiotic channels triggers a complex network of inferential processes, based on expectations of coherence and relevance, with which they make sense of the representation of the world offered in the news. Through the analysis of a number of news items, this article considers the cognitive processes which viewers may activate when extracting meaning from the multimedial messages contained in television news. The analysis of news items from two British television networks offered by the authors traces the possible meanings that, it is assumed, become available to a potential, ‘idealised’ or ‘implied’ viewer, who accesses the information with some social and cultural knowledge of contemporary Britain. Building on existing studies, the article proposes a model for the classification of verbal–visual relations
Intervention for African American adults with type 2 diabetes
The purpose of this project was to examine outcomes in African American adult patients with type 2 diabetes who received education and diet and exercise services compared to those who did not. Type 2 diabetes accounts for 90-95% of all diabetes cases, and is more prevalent among African Americans. Diabetes is the fifth leading cause of death in the African American community
From other-representation to self-representation: exploring identity and activism in historical news media writing
This study addresses a significant gap in our understanding of self-representation in historical news media reporting. It focusses on one significant historical publication: the first nationally distributed Indigenous Australian newspaper written and edited by First Nations people – The Australian Abo Call: The Voice of the Aborigines (hereafter The AAC). The AAC was published in six editions in 1938, the year of the 150th anniversary of invasion of the continent now known as Australia. The corpus consists of all (non-fiction) articles from all six editions of this newspaper, which was founded, edited and largely written by Yorta Yorta man J.T. (Jack) Patten. As such, the study offers a synchronic ‘snapshot’ of a particular moment in Australian history. The study uses corpus-assisted discourse analysis to explore the linguistic construction of self-representation – how First Nations people write about themselves and the communities they represent. I proceed from inductively identifying group-based identity labels to categorising these labels in terms of their positionality in relation to ‘self’ and ‘other’. Using concordances, the study also qualitatively examines these identity labels through transitivity analysis. The results suggest that The AAC was a site of political awakening directed at both Indigenous and white Australians, calling on the former to mobilise, on the latter to listen, and on both to act. The analysis also shows that this activism sits very much within the dominant Western/Colonial frame, reflecting the historical settler-colonial context of the period in which this newspaper was published. The study has broader implications for corpus-assisted discourse analysis, by indicating the insights we gain by shifting our gaze away from ‘other’-representation in mainstream newspapers towards ‘self’-representation in community-led publications
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