4,015 research outputs found

    Place branding and the representation of people at work: Exploring issues of tourism imagery and migrant labour in the Republic of Ireland

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    This paper addresses destination brand image in tourism marketing and assesses the contribution of tourism ' s workforce to such image and branding, considering the role that employees play in visitors ' interpretation of their experience of destination and place. The focus of this paper, therefore, is on the role of people in the image of place and the potential for contradiction in imagery as the people who inhabit and work within a place change over time. At the same time, both those who promote a destination and those consuming the place as visitors may well have expectations that are fixed in imagery that does not accord with that held within the wider community. The location of this paper is Ireland where the traditional promotion of the tourism brand has given a core role to images of people and the friendliness of the hospitality of Irish people, represented by largely homogeneous images. Recent growth in the ' Celtic tiger ' economy has induced unprecedented and large-scale migration from countries across the globe to Ireland, particularly into the tourism sector. This paper raises questions with regard to the branding of Ireland as a tourist destination in the light of major changes within the demography and ethnicity of its tourism workforce

    People's perceptions and classifications of sounds heard in urban parks : semantics, affect and restoration

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    Sounds have been broadly categorized by researchers into ‘human’, ‘nature’ and ‘mechanical’. It is less clear if the general public define and classify sounds in the same way and which factors influence their classification process. Establishing people’s classification and impression of urban park sounds helps identify their perception and experience of urban parks. This in turn aides the process of defining parks with reference to soundscapes, to produce an appreciated and potentially restorative place. This study involved urban park sounds, identified by park users, being presented in card sorts and survey items. Participants sorted the sounds into similar groups, in reference to a visited park. The terminology, factors involved and classification of the sounds was assessed using multidimensional scaling. Triangulation of the results suggests affect is a key factor in people’s classification process. Participants’ grouped sounds were labelled by affective terms more often than their perceived physical properties. Affective evaluations of each sound produced a similar classification structure as the card sort results. People’s classification structure also varied depending on how restorative they found their urban park. Furthermore schematic recollections played a part with many sounds being ‘expected’. Overall similarities and differences with ‘human’, ‘nature’ and ‘mechanical’ classifications were observed

    Breather turbulence versus soliton turbulence: Rogue waves, probability density functions, and spectral features

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    10 págs.; 12 figs.Turbulence in integrable systems exhibits a noticeable scientific advantage: it can be expressed in terms of the nonlinear modes of these systems. Whether the majority of the excitations in the system are breathers or solitons defines the properties of the turbulent state. In the two extreme cases we can call such states >breather turbulence> or >soliton turbulence.> The number of rogue waves, the probability density functions of the chaotic wave fields, and their physical spectra are all specific for each of these two situations. Understanding these extreme cases also helps in studies of mixed turbulent states when the wave field contains both solitons and breathers, thus revealing intermediate characteristics. ©2016 American Physical SocietyThe authors acknowledge the support from the Volkswagen Stiftung. The work of JMSC was also supported by MINECO under Contract No. TEC2015-71127-C2-1-R, and by C.A.M. under Contract No. S2013/MIT-2790. N.D. and N.A. acknowledge support of the Australian Research Council (Discovery Project No. DP140100265).Peer Reviewe

    Cavitation-induced ignition of cryogenic hydrogen-oxygen fluids

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    The Challenger disaster and purposeful experiments with liquid hydrogen (H2) and oxygen (Ox) tanks demonstrated that cryogenic H2/Ox fluids always self-ignite in the process of their mixing. Here we propose a cavitation-induced self-ignition mechanism that may be realized under these conditions. In one possible scenario, self-ignition is caused by the strong shock waves generated by the collapse of pure Ox vapor bubble near the surface of the Ox liquid that may initiate detonation of the gaseous H2/Ox mixture adjacent to the gas-liquid interface. This effect is further enhanced by H2/Ox combustion inside the collapsing bubble in the presence of admixed H2 gas

    National Survey of Introductory Pharmacy Practice Experience Programs

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    Objective: The objective of this study was to identify commonalities and provide a descriptive overview of key program elements and oversight of U.S. introductory pharmacy practice experience (IPPE) programs. Methods: A Web-based questionnaire, consisting of 40 questions, was sent to 91 schools of pharmacy. The questionnaire addressed the following IPPE program topics, in addition to school demographics: program oversight, experience site selection, program structure, relationship to didactic curriculum, and quality assurance issues. Results: Forty-six schools of pharmacy responded resulting in a response rate of 50.5%. Results identified commonalities in each of the key areas, as well as identifying multiple discrepancies in interpretation of the 2007 Accreditation Council for Pharmacy Education (ACPE) Standards and Guidelines (Standards 2007) for IPPEs. Only 21 of 42 respondents indicated they believed their IPPE program was currently in compliance with Standards 2007. Conclusion: The survey results demonstrate a need for clarification by ACPE stakeholders in several areas addressed within the Standards 2007. No other previous research surveys were found addressing the key issues identified in this survey, revealing the need for additional research on IPPE programs within pharmacy school curricula

    Rogue wave spectra of the Sasa–Satsuma equation

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    We analyze the rogue wave spectra of the Sasa–Satsuma equation and their appearance in the spectra of chaotic wave fields produced through modulation instability. Chaotic wave fields occasionally produce high peaks that result in a wide triangular spectrum, which could be used for rogue wave detection.The authors acknowledge the support from the Volkswagen Stiftung. N. D. and N. A. acknowledge the support of the Australian Research Council (Discovery Project DP140100265). N. A. is a recipient of the Alexander von Humboldt Award (Germany). The work of JMSC is supported by the MINECO under contracts FIS2009- 09895 and TEC2012-37958-C02-02, and by C.A.M. under contract S2013/MIT-2790

    Actinomyces spp. gene expression in root caries lesions

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    Background: studies of the distribution of Actinomyces spp. on carious and non-carious root surfaces have not been able to confirm the association of these bacteria with root caries, although they were extensively implicated as a prime suspect in root caries. Objective: the aim of this study was to observe the gene expression of Actinomyces spp. in the microbiota of root surfaces with and without caries. Design: the oral biofilms from exposed sound root surface (SRS; n=10) and active root caries (RC; n=30) samples were collected. The total bacterial RNA was extracted and the mRNA was isolated. Samples with low RNA concentration were pooled, yielding a final sample size of SRS=10 and RC=9. cDNA libraries were prepared and sequenced on the Illumina Hi-Seq2500. Sequence reads were mapped to eight Actinomyces genomes. Count data were normalized using DESeq2 to analyse differential gene expression applying the Benjamini-Hochberg correction (FDR0.05), except for Actinomyces OT178 (p=0.001) and A. gerencseriae (p=0.004), which had higher read count in the SRS. Genes that code for stress proteins (clp, dnaK and groEL), enzymes of glycolysis pathways (including, enolase and phosphoenolpyruvate carboxykinase), adhesion (Type-2 fimbrial and collagen-binding protein) and cell growth (EF-Tu) were highly, but not differentially (p>0.001) expressed in both groups. Genes with the most significant up-regulation in RC were those coding for hypothetical proteins and uracil DNA glycosylase (p=2.61E-17). The gene with the most significant up-regulation in SRS was a peptide ABC transporter substrate-binding protein (log2FC= -6.00, FDR= 2.37E-05). Conclusion: there were similar levels of Actinomyces gene expression in both sound and carious root biofilms. These bacteria can be commensal in root surface sites, but may be cariogenic due to survival mechanisms allowing them to exist in acid environment and metabolize sugars saving energy

    Memetic Multilevel Hypergraph Partitioning

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    Hypergraph partitioning has a wide range of important applications such as VLSI design or scientific computing. With focus on solution quality, we develop the first multilevel memetic algorithm to tackle the problem. Key components of our contribution are new effective multilevel recombination and mutation operations that provide a large amount of diversity. We perform a wide range of experiments on a benchmark set containing instances from application areas such VLSI, SAT solving, social networks, and scientific computing. Compared to the state-of-the-art hypergraph partitioning tools hMetis, PaToH, and KaHyPar, our new algorithm computes the best result on almost all instances
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