240 research outputs found

    Destination risk news framing effects–the power of audiences

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    This media effects study reflects on the practices tourists employ in making destination risk judgments on the basis of news coverage of terrorist attacks and events of political instability. Through qualitative research, insights are gained into the link between news media representations of risk and individual destination risk information processing. The paper discusses the nuanced ways in which audiences interpret destination risk by drawing on a blend of their knowledge of hazards and portrayals of risk embedded in news reports. The findings point towards a cognitive-transactional model of media effects, which recognise the active role and power of audiences in determining effects. Consideration is given to psychological mechanism underlying framing effects and destination marketing practice

    Determinants of canal boat tour participant behaviours: an explanatory mixed-method approach

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    Drawing on cumulative prospect theory (CPT), we measured the risk and motivational factors involved in “canal boat tours” and used these to test conceptual models to predict canal boat tour participant’s behavioural intentions in France. Data were collected using face-to-face questionnaire surveys and subjected to rigorous analysis. In-depth interviews provided deeper insight into participants’ post-purchase behaviour. Assessment of the study results using two key features of CPT – diminishing sensitivity and risk aversion – confirmed that this theory can explain how risk and motivational factors interact to drive canal boat tour participants’ post-purchase behaviours

    Food information presentation: consumer preferences when eating out

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    Advances have been made in the provision of nutritional and ingredient information on packaged food, however there is a need to translate this to eating out reflecting consumer desire for greater transparency and knowledge of menu content. The aim of this study is to assess consumer’s preferences for food information presentation in four European countries (UK, Greece, Denmark, and France) in a workplace dining setting. This study focuses on work-place canteens since the regularity in which they are used provides an important context and potential for behaviour change. An exploratory phase designed iteratively in collaboration with experts, end-users and researchers (qualitative) informed a survey (quantitative) conducted in four European countries. The survey was used to examine workplace diners’ preferences towards food information presentation. Differences were found and clustered (n=5) to ‘Heuristic Processors’ (33%) ‘Brand orientated’ (25%) ‘Systematic Processors’ (17.3%) ‘Independent Processors’ (16.1%) and ‘Tech-savvy’ (8.6%). Dual process theories were used to analyse the findings and produce new insight into how menu information can be most effectively delivered. When eating out consumers struggle to make choices or make the wrong choice from a health perspective, partly caused by a lack of nutrient profile information as well as other criteria of concern. Giving catering managers the understanding of preferred communication channels can enable a more competitive operator. Traffic light labeling was the optimal presentation with the opportunity for consumers to discover more detailed information if desired. For the first time this research has given operational clarity whilst allowing food providers to be considered as part of corporate health

    Chromatin differentiation between Theobroma cacao L. and T. grandiflorum Schum

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    A comparative analysis of mitotic chromosomes of Theobroma cacao (cacao) and T. grandiflorum (cupuaçu) was performed aiming to identify cytological differences between the two most important species of this genus. Both species have symmetric karyotypes, with 2n = 20 metacentric chromosomes ranging in size from 2.00 to 1.19 ÎŒm (cacao) and from 2.21 to 1.15 ÎŒm (cupuaçu). The interphase nuclei of both species were of the arreticulate type, displaying up to 20 chromocentres, which were more regularly shaped in cacao than in cupuaçu. Prophase chromosomes of both species were more condensed in the proximal region, sometimes including the whole short arm. Both species exhibited only one pair of terminal heterochromatic bands, positively stained with chromomycin A 3 , which co-localized with the single 45S rDNA site. Each karyotype displayed a single 5S rDNA site in the proximal region of another chromosome pair. Heterochromatic bands were also observed on the centromeric/pericentromeric regions of all 20 chromosomes of cacao after C-banding followed by Giemsa or DAPI staining, whereas in cupuaçu they were never detected. These data suggest that the chromosomes of both species have been largely conserved and their pericentromeric chromatin is the only citologically differentiated region

    FISH and DAPI staining of the synaptonemal complex of the Nile tilapia (Oreochromis niloticus) allow orientation of the unpaired region of bivalent 1 observed during early pachytene

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    Bivalent 1 of the synaptonemal complex (SC) in XY male Oreochromis niloticus shows an unpaired terminal region in early pachytene. This appears to be related to recombination suppression around a sex determination locus. To allow more detailed analysis of this, and unpaired regions in the karyotype of other Oreochromis species, we developed techniques for FISH on SC preparations, combined with DAPI staining. DAPI staining identified presumptive centromeres in SC bivalents, which appeared to correspond to the positions observed in the mitotic karyotype (the kinetochores could only be identified sporadically in silver stained EM SC images). Furthermore, two BAC clones containing Dmo (dmrt4) and OniY227 markers that hybridize to known positions in chromosome pair 1 in mitotic spreads (near the centromere, FLpter 0.25, and the putative sex determination locus, FLpter 0.57, respectively) were used as FISH probes on SCs to verify that the presumptive centromere identified by DAPI staining was located in the expected position. Visualization of both the centromere and FISH signals on bivalent 1 allowed the unpaired region to be positioned at Flpter 0.80 to 1.00, demonstrating that the unpaired region is located in the distal part of the long arm(s). Finally, differences between mitotic and meiotic measurements are discussed

    Inner Ear Malformations in Congenital Deafness Are Not Associated with Increased Risk of Breech Presentation

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    Background: There is speculation that an immature vestibular system may be associated with breech presentation at delivery. Our aim was to determine whether syndromes with congenital inner ear malformations were accompanied by a higher frequency of breech presentation/malpresentations than in the general population (2%−3%). Methods: A review was conducted for published literature using PubMed/MEDLINE (1936–2016), to determine frequency of breech presentation and transverse lie in cases with congenital deafness (Michel aplasia, Wildervanck syndrome, Mondini-Alexander dysplasia, Waardenburg syndrome, CHARGE syndrome, Large vestibular aqueductal syndrome, Pendred syndrome, Oculo-aurico-vertebral spectrum, Jervel and Lange-Nielsen syndrome, Usher syndrome, and Scheibe dysplasia) and vestibular nerve aplasia. Results: Identified were total of 122 cases. The frequency of breech presentation was 1.64%, and of transverse lie 1.64%, giving a total of 3.28% malpresentations. Conclusion: The results of the study suggest that congenital malformations of the vestibular apparatus are not associated with the increased risk of breech presentation at delivery

    A comprehensive evaluation of interaction between genetic variants and use of menopausal hormone therapy on mammographic density.

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    INTRODUCTION: Mammographic density is an established breast cancer risk factor with a strong genetic component and can be increased in women using menopausal hormone therapy (MHT). Here, we aimed to identify genetic variants that may modify the association between MHT use and mammographic density. METHODS: The study comprised 6,298 postmenopausal women from the Mayo Mammography Health Study and nine studies included in the Breast Cancer Association Consortium. We selected for evaluation 1327 single nucleotide polymorphisms (SNPs) showing the lowest P-values for interaction (P int) in a meta-analysis of genome-wide gene-environment interaction studies with MHT use on risk of breast cancer, 2541 SNPs in candidate genes (AKR1C4, CYP1A1-CYP1A2, CYP1B1, ESR2, PPARG, PRL, SULT1A1-SULT1A2 and TNF) and ten SNPs (AREG-rs10034692, PRDM6-rs186749, ESR1-rs12665607, ZNF365-rs10995190, 8p11.23-rs7816345, LSP1-rs3817198, IGF1-rs703556, 12q24-rs1265507, TMEM184B-rs7289126, and SGSM3-rs17001868) associated with mammographic density in genome-wide studies. We used multiple linear regression models adjusted for potential confounders to evaluate interactions between SNPs and current use of MHT on mammographic density. RESULTS: No significant interactions were identified after adjustment for multiple testing. The strongest SNP-MHT interaction (unadjusted P int <0.0004) was observed with rs9358531 6.5kb 5' of PRL. Furthermore, three SNPs in PLCG2 that had previously been shown to modify the association of MHT use with breast cancer risk were found to modify also the association of MHT use with mammographic density (unadjusted P int <0.002), but solely among cases (unadjusted P int SNP×MHT×case-status <0.02). CONCLUSIONS: The study identified potential interactions on mammographic density between current use of MHT and SNPs near PRL and in PLCG2, which require confirmation. Given the moderate size of the interactions observed, larger studies are needed to identify genetic modifiers of the association of MHT use with mammographic density.This is the final version of the article. It first appeared from BioMed Central via http://dx.doi.org/10.1186/s13058-015-0625-

    Rethinking journalism practice through innovative approaches to post conflict reporting

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    Journalism has a long history of interviewing vulnerable people caught up in natural disasters, conflict or tragedy. While it is widely recognised that journalists have an important role to play in telling the stories of those traumatised by such events, the concepts of ‘peace journalism’ or ‘journalism of attachment’ have often elicited a negative reaction in traditional journalistic circles. Drawing on the authors’ research project working with young people embroiled in Colombia’s civil conflict, this paper sets out an alternative and innovative approach to the retelling of the stories of others. It outlines how the research team engaged with the young people, some of whom had operated as child soldiers before Colombia’s peace accord with FARC rebels, and encouraged them to narrate their own stories in their own style. Through a series of workshops, the team experimented with oral and visual representations of their experiences, staying close to their accounts, enabling their voices to be heard. The participants combined traditional narrative with animation to produce a short documentary setting out their hopes for peace and reconciliation. This project, with its focus on immersion and listening, offers an alternative approach for journalists trying to relay the experiences of traumatised individuals marginalised in society as a result of their participation in the armed conflict. While the project was located in the specific context of Colombia, the paper argues that the journalistic approaches used could be applied more widely to the reporting of trauma in post conflict or marginalised communities

    The metabolic significance of octulose phosphates in the photosynthetic carbon reduction cycle in spinach

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    (14)C-Labelled octulose phosphates were formed during photosynthetic (14)CO(2) fixation and were measured in spinach leaves and chloroplasts. Because mono- and bisphosphates of d-glycero-d-ido-octulose are the active 8-carbon ketosugar intermediates of the L-type pentose pathway, it was proposed that they may also be reactants in a modified Calvin–Benson–Bassham pathway reaction scheme. This investigation therefore initially focussed only on the ido-epimer of the octulose phosphates even though (14)C-labelled d-glycero-d-altro-octulose mono- and bisphosphates were also identified in chloroplasts and leaves. (14)CO(2) predominantly labelled positions 5 and 6 of d-glycero-d-ido-octulose 1,8-P(2) consistent with labelling predictions of the modified scheme. The kinetics of (14)CO(2) incorporation into ido-octulose was similar to its incorporation into some traditional intermediates of the path of carbon, while subsequent exposure to (12)CO(2) rapidly displaced the (14)C isotope label from octulose with the same kinetics of label loss as some of the confirmed Calvin pathway intermediates. This is consistent with octulose phosphates having the role of cyclic intermediates rather than synthesized storage products. (Storage products don’t rapidly exchange isotopically labelled carbons with unlabelled CO(2).) A spinach chloroplast extract, designated stromal enzyme preparation (SEP), catalysed and was used to measure rates of CO(2) assimilation with Calvin cycle intermediates and octulose and arabinose phosphates. Only pentose (but not arabinose) phosphates and sedoheptulose 7-phosphate supported CO(2) fixation at rates in excess of 120 Όmol h(−1) mg(−1) Chl. Rates for octulose, sedoheptulose and fructose bisphosphates, octulose, hexose and triose monophosphates were all notably less than the above rate and arabinose 5-phosphate was inactive. Altro-octulose phosphates were more active than phosphate esters of the ido-epimer. The modified scheme proposed a specific phosphotransferase and SEP unequivocally catalysed reversible phosphate transfer between sedoheptulose bisphosphate and d-glycero-d-ido-octulose 8-phosphate. It was also initially hypothesized that arabinose 5-phosphate, an L-Type pentose pathway reactant, may have a role in a modified Calvin pathway. Arabinose 5-phosphate is present in spinach chloroplasts and leaves. Radiochromatography showed that (14)C-arabinose 5-phosphate with SEP, but only in the presence of an excess of unlabelled ribose 5-phosphate, lightly labelled ribulose 5-phosphate and more heavily labelled hexose and sedoheptulose mono- and bisphosphates. However, failure to demonstrate any CO(2) fixation by arabinose 5-phosphate as sole substrate suggested that the above labelling may have no metabolic significance. Despite this arabinose and ribose 5-phosphates are shown to exhibit active roles as enzyme co-factors in transaldolase and aldolase exchange reactions that catalyse the epimeric interconversions of the phosphate esters of ido- and altro-octulose. Arabinose 5-phosphate is presented as playing this role in a New Reaction Scheme for the path of carbon, where it is concluded that slow reacting ido-octulose 1,8 bisphosphate has no role. The more reactive altro-octulose phosphates, which are independent of the need for phosphotransferase processing, are presented as intermediates in the new scheme. Moreover, using the estimates of phosphotransferase activity with altro-octulose monophosphate as substrate allowed calculation of the contributions of the new scheme, that ranged from 11% based on the intact chloroplast carboxylation rate to 80% using the carboxylation rate required for the support of octulose phosphate synthesis and its role in the phosphotransferase reaction
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