97 research outputs found

    The holy grail:Environmental management, competitive advantage and business performance in the Spanish hotel industry

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    © Emerald Group Publishing Limited G959-6119. Purpose - This paper aims to analyse the influence of environmental proactivity on cost and differentiation competitive advantages, and to explore the double relationship between environmental proactivity and business performance. Design/methodology/approach - The population consists of all three- to five-star hotels in Spain. A sample of 350 hotels was classified according to environmental proactivity and performance levels, employing a two-step cluster analysis. Significant differences between groups were examined. Findings - The results show two types of environmental behaviour (reactive and proactive), with proactive hotels developing significantly better on both cost and differentiation competitive advantage and achieving significantly higher performance levels. Hotels which achieve above average business performance levels are significantly more environmentally proactive. Research limitations/implications - The present paper demonstrates that environmental management is related to competitive advantages and business performance. Environmental management systems are more developed in higher category, chain-affiliated and larger hotels. This could be due to having more resources to develop their environmental capability. The environmental proactivity scale employed in this study is presented as a reference measure for hotel managers to benchmark their current practices and implement environmental improvements. Originality/value - First, measuring environmental proactivity using four managerial systems (operative, information, strategic and technical) is innovative and provides a more detailed approach to measuring environmental proactivity. Second, demonstrating a double association between environmental proactivity and performance provides fresh insights into the relationship between these variables

    Seminario de demandas de agua en El Salvador

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    Uno de los problemas mas importantes para el diseñador de abastecimiento de agua es la consideración que es necesario hacer con respecto a los valores de los consumos promedio diario a la población a la cual se le quiere suministrar agua potable. Los factores que inciden para la estimación de estos valores son: el nivel económico de la población servida, calidad del agua, continuidad en el servicio de agua, estado de la red de distribución, presión de servicio adecuad0.estos factores son variados que la posibilidad de obtener datos verdaderamente exactos lleva a suposiciones que no hace mas que conducir a diseños antieconómico

    Cyclooxygenase-2 polymorphisms confer susceptibility to sarcoidosis but are not related to prognosis

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    SummaryBackgroundThe aim of this multicenter study was to investigate the relationship between single nucleotide polymorphisms (SNPs) of the cyclooxygenase-2 (COX2) gene and susceptibility to sarcoidosis, as well as the relation between these SNPs and the evolution of the disease.Material and methodsThis multicenter investigation involved seven hospitals in Spain. We used a case–control design followed by a prospective follow-up study. Sarcoid patients were recruited from the participating institutions during outpatient routine visits. Age- and gender-matched control subjects were recruited mainly from among outpatients attending the participating hospitals. Four SNPs in the COX2 gene (COX2.5909 T > G, COX2.8473 T > C, COX2.926 G > C, and COX2.3050 G > C) were genotyped using fluorescent hybridization probes among 131 patients with sarcoidosis (63 males; mean age: 47 ± 15 years) and 157 healthy controls (83 males; mean age: 50 ± 16 years). We employed a binomial multiple logistic regression analysis to test the association between the selected SNPs and disease susceptibility. The clinical, functional and radiological prognosis of the sarcoidosis patients was determined after a mean follow-up of 37.4 ± 30.4 months.ResultsCarriers of the homozygous CC genotype of the COX2.8473 T > C polymorphism had a higher risk of sarcoidosis compared with TT carriers (OR: 3.08; 95% CI: 1.2–7.7; p = 0.035). 84% of patients achieved improvement or complete remission at follow-up. No association between the investigated SNPs and prognosis was seen.ConclusionsOur data suggest that the homozygous CC genotype of the COX2.8473 T > C polymorphism may be associated with sarcoidosis susceptibility. No significant association with prognosis was detected

    Short-term versus long-term benefits: balanced sustainability framework and research propositions

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    Sustainability research has been expanding rapidly during recent decades. Such research takes various forms with the identification of mixed results. Even though there are several review articles on sustainability with valuable insights, the time dimension aspect of sustainability is totally missing in addition to lack of well-developed framework. This paper systematically reviews previous sustainability studies published in the refereed scientific journals for the past two decades to understand the evolution of sustainability issues in the business context and solutions proposed until now. The study categorizes the popular sustainability practices into short- and long-term practices based on the time effect, and link them with different forms of organizational capabilities and sustainability performance. The paper further proposes a two-dimensional sustainability framework that incorporates practices, capabilities and performance, and the balancing issues between short- and long-term sustainability. At the end, it suggests potential research directions for future research as well

    Being 'Green and Competitive': The Impact of Environmental Actions and Collaborations on Firm Performance

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    In this paper, we seek to enhance the understanding of the link between environmental management and firm performance, so contributing to the debate of being "green and competitive". Relying on the resource-based view, we study the effect of different environmental management capabilities on a firm's market and image performance. In particular, we analyze the capabilities to implement product and process-related environmental actions with different types of environmental focus (materials, energy, pollution) and the capabilities to develop environmental collaborations with different types of actors (both business actors and non-business actors). To this aim we conducted a survey on 122 Italian companies. Results show that market performance and image performance have partially different antecedents. Specifically, a firm's market performance is positively affected by the capabilities to implement environmental actions with a focus on energy and pollution and to develop environmental collaborations both with business and with non-business actors. On the other hand, a firm's image performance is positively affected by the capabilities to implement environmental actions with a focus on materials and to develop environmental collaborations with non-business actors. © 2013 John Wiley & Sons, Ltd and ERP Environment

    Properties and customization of sensor materials for biomedical applications.

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    Low-power chemo- and biosensing devices capable of monitoring clinically important parameters in real time represent a great challenge in the analytical field as the issue of sensor calibration pertaining to keeping the response within an accurate calibration domain is particularly significant (1–4). Diagnostics, personal health, and related costs will also benefit from the introduction of sensors technology (5–7). In addition, with the introduction of Registration, Evaluation, Authorization, and Restriction of Chemical Substances (REACH) regulation, unraveling the cause–effect relationships in epidemiology studies will be of outmost importance to help establish reliable environmental policies aimed at protecting the health of individuals and communities (8–10). For instance, the effect of low concentration of toxic elements is seldom investigated as physicians do not have means to access the data (11)

    Environmental regulations, innovation and firm performance: A revisit of the porter hypothesis

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    This paper examines the relationships between environmental regulations, firms’ innovation and private sustainability benefits using nine case studies of UK and Chinese firms. It aims to unravel the mechanisms by which a firm’s environmental behaviour in improving its private benefits of sustainability is influenced by its relationship with the government, which primarily enacts regulations to maximise public sustainability benefits in the interests of society as a whole. The paper takes its cue from the Porter hypothesis to make some broad preliminary assumptions to inform the research design. A conceptual framework was developed through inductive case studies using template analysis. The results show that depending on firms’ resources and capabilities, those that adopt a more dynamic approach to respond to environmental regulations innovatively and take a proactive approach to manage their environmental performance are generally better able to reap the private benefits of sustainability.Part of the research for this paper was supported by funding from Nottingham Innovative Manufacturing Research Centre and the University of Bedfordshire Business and Management Research Institute

    Autoantibodies against type I IFNs in patients with life-threatening COVID-19

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    Interindividual clinical variability in the course of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is vast. We report that at least 101 of 987 patients with life-threatening coronavirus disease 2019 (COVID-19) pneumonia had neutralizing immunoglobulin G (IgG) autoantibodies (auto-Abs) against interferon-w (IFN-w) (13 patients), against the 13 types of IFN-a (36), or against both (52) at the onset of critical disease; a few also had auto-Abs against the other three type I IFNs. The auto-Abs neutralize the ability of the corresponding type I IFNs to block SARS-CoV-2 infection in vitro. These auto-Abs were not found in 663 individuals with asymptomatic or mild SARS-CoV-2 infection and were present in only 4 of 1227 healthy individuals. Patients with auto-Abs were aged 25 to 87 years and 95 of the 101 were men. A B cell autoimmune phenocopy of inborn errors of type I IFN immunity accounts for life-threatening COVID-19 pneumonia in at least 2.6% of women and 12.5% of men

    Evaluation of appendicitis risk prediction models in adults with suspected appendicitis

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    Background Appendicitis is the most common general surgical emergency worldwide, but its diagnosis remains challenging. The aim of this study was to determine whether existing risk prediction models can reliably identify patients presenting to hospital in the UK with acute right iliac fossa (RIF) pain who are at low risk of appendicitis. Methods A systematic search was completed to identify all existing appendicitis risk prediction models. Models were validated using UK data from an international prospective cohort study that captured consecutive patients aged 16–45 years presenting to hospital with acute RIF in March to June 2017. The main outcome was best achievable model specificity (proportion of patients who did not have appendicitis correctly classified as low risk) whilst maintaining a failure rate below 5 per cent (proportion of patients identified as low risk who actually had appendicitis). Results Some 5345 patients across 154 UK hospitals were identified, of which two‐thirds (3613 of 5345, 67·6 per cent) were women. Women were more than twice as likely to undergo surgery with removal of a histologically normal appendix (272 of 964, 28·2 per cent) than men (120 of 993, 12·1 per cent) (relative risk 2·33, 95 per cent c.i. 1·92 to 2·84; P < 0·001). Of 15 validated risk prediction models, the Adult Appendicitis Score performed best (cut‐off score 8 or less, specificity 63·1 per cent, failure rate 3·7 per cent). The Appendicitis Inflammatory Response Score performed best for men (cut‐off score 2 or less, specificity 24·7 per cent, failure rate 2·4 per cent). Conclusion Women in the UK had a disproportionate risk of admission without surgical intervention and had high rates of normal appendicectomy. Risk prediction models to support shared decision‐making by identifying adults in the UK at low risk of appendicitis were identified
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