228 research outputs found

    Editorial: Women in plant science:redox biology of plant abiotic stress 2022

    Get PDF
    MR-P thanks Spanish Ministry of Science and Innovation for Financial support (PID2021-122280NB-I00). CF thanks BBSRC/GCRF (UK) for Financial support (BB/T008865/1). LG thanks Agritech National Research Center (European Union Next-Generation, EU), Piano Nazionale di Ripresa e Resilienza (PNRR) —Missione 4 Componente 2, Investimento 1.4—D.D. 1032 17/06/ 2022, CN00000022)

    A Chinese Model for Labour in Europe?

    Get PDF
    Based on long-term fieldwork in multiple locations, our article questions the approach that posits a Chinese model of work and employment relations as increasingly exporting its form of labour management and dominating worldwide. It does so by focusing on Europe and discussing two labour regimes considered as typically Chinese: the Chinese fashion workshops in the Italian fashion industry, and the Foxconn electronics plants in the Czech Republic. Our findings bring new insights to bear on issues for which research is still thin on the ground and challenge the hypothesis of a \u2018Chinesisation\u2019 of work and employment practices in Chinese small firms and MNCs operating in Europe. We move the focus away from the simple analysis of firm management prevailing in the literature and suggest that, in order to understand the firm\u2019s behaviours, the role of the state, the unions, the migrant workers and the role of temporary work agencies should all be taken into consideration

    Time--delay autosynchronization of the spatio-temporal dynamics in resonant tunneling diodes

    Full text link
    The double barrier resonant tunneling diode exhibits complex spatio-temporal patterns including low-dimensional chaos when operated in an active external circuit. We demonstrate how autosynchronization by time--delayed feedback control can be used to select and stabilize specific current density patterns in a noninvasive way. We compare the efficiency of different control schemes involving feedback in either local spatial or global degrees of freedom. The numerically obtained Floquet exponents are explained by analytical results from linear stability analysis.Comment: 10 pages, 16 figure

    Bottom-up grassroots innovation in transport: motivations, barriers and enablers

    Get PDF
    This article was published in the journal, Transportation Planning and Technology [© Taylor & Francis], available online at: http://www.tandfonline.com/doi/abs/10.1080/03081060.2012.680820There is a growing phenomenon of ‘grassroots’ innovation, i.e. that triggered by individual users or communities (physical or virtual) seeking a solution to a personal or societal problem. This has great potential as a new source of sustainable transport innovations, but has been received little attention to date. This study conducted 16 in-depth interviews and a workshop with grassroots innovators in transport. A detailed thematic analysis of the interview data identified: catalysts for the idea and the motivation behind its pursuit; the barriers experienced (those that were overcome and those that were not); and the enablers that permitted the innovations to continue and to flourish. The paper concludes by identifying the conditions that need to exist for such innovations to be created, developed and exploited in order that their potential for increasing the sustainability of the transport system can be fulfilled

    An Evaluation Model For Web-based 3D Mass Customization Toolkit Design

    Get PDF
    The development of geometric modelling technologies and web technologies provides the ability to present a virtual 3D product in a mass customization (MC) toolkit. Compared with 2D graphic toolkits, 3D toolkit design requires better consideration of individual customer needs, consumer and toolkit interaction, and also a means of integrating with the underlying technical infrastructure. However, there is currently no widely accepted model or criteria to regulate and evaluate 3D MC toolkit design. Given these considerations, in this paper we provide an evaluation model for web-based 3D toolkits and a heuristic evaluation of two representative commercial web-based 3D toolkits. The evaluation results indicate the usefulness and effectiveness of the model as a scale for evaluating 3D toolkits. It also reveals that despite a fair amount of effort that has been devoted to theoretical research, current 3D toolkits are still at an early development stage. We therefore conclude this paper by identifying and encouraging further topics and questions as directions for future research

    Osteoporosis in the community. Sensitivity of self-reported estimates and medication use of those diagnosed with the condition

    Get PDF
    Objectives: To assess the sensitivity and specificity of self-reported osteoporosis compared with dual energy X-ray absorptiometry (DXA) defined osteoporosis, and to describe medication use among participants with the condition. Methods: Data were obtained from a population-based longitudinal study and assessed for the prevalence of osteoporosis, falls, fractures and medication use. DXA scans were also undertaken. Results: Overall 3.8% (95% confidence interval (CI) 3.2 to 4.5) of respondents and 8.8% (95% CI 7.5 to 10.3) of those aged ≥ 50 years reported that they had been diagnosed with osteoporosis by a doctor. The sensitivity (those self-reporting osteoporosis and having low bone mineral density (BMD) on DXA) was low (22.7%), although the specificity was high (94.4%). Only 16.1% of those aged ≥ 50 years and with DXA-defined osteoporosis were taking bisphosphonates. Conclusions: The sensitivity of self-reporting to identify osteoporosis is low. Anti-osteoporotic medications are an important part of osteoporosis treatment but opportunities to use appropriate medications were missed and inappropriate medications were used.T. K. Gill, A. W. Taylor, C. L. Hill, P. J. Phillip

    Survival in amoeba: a major selection pressure on the presence of bacterial copper and zinc resistance determinants?: identification of a "copper pathogenicity island"

    Get PDF
    The presence of metal resistance determinants in bacteria usually is attributed to geological or anthropogenic metal contamination in different environments or associated with the use of antimicrobial metals in human healthcare or in agriculture. While this is certainly true, we hypothesize that protozoan predation and macrophage killing are also responsible for selection of copper/zinc resistance genes in bacteria. In this review, we outline evidence supporting this hypothesis, as well as highlight the correlation between metal resistance and pathogenicity in bacteria. In addition, we introduce and characterize the "copper pathogenicity island" identified in Escherichia coli and Salmonella strains isolated from copper- and zinc-fed Danish pigs
    corecore