548 research outputs found

    Despliegue de la Smart Specialisation para la resiliencia económica regional: el papel de la estructura industrial

    Get PDF
    The European Regional Development Funds for the programmatic cycle 2014-2020 aims to support regions that implement an innovation strategy based on Smart Specialisation. Within this framework, the European Commission emphasises the role of smart specialisation in favouring regional transformation, enhancing competitiveness and fostering resilience. However, the concepts of smart specialisation and resilience have been poorly combined. The article aims at investigating their relationship to understand if a smart specialisation strategy may promote the economic resilience of regions in response to major economic shocks. Drawing upon the concepts of adaptation/adaptability, the analysis investigates the relatedness of new industrial specialisations to the existing industrial structure before and after a shock occurrence. Evaluating the resilience of Italian provinces in relation to the economic crisis of 2008, the analysis aims to understand if provinces that resisted and recovered better followed a smart specialisation framework where new industrial specialisations are related to the existing industrial structure.El Fondos Europeos de Desarrollo Regional para el ciclo programático 2014-2020 tienen como objetivo apoyar a las regiones que aplican una estrategia de innovación basada en la Smart Specialisation. En este marco, la Comisión Europea destaca el papel de la Smart Specialisation para favorecer la transformación regional, mejorar la competitividad y fomentar la resiliencia. Sin embargo, los conceptos de Smart Specialisation y resiliencia han sido poco combinados. El artículo pretende investigar su relación para entender si una estrategia de Smart Specialisation puede promover la resiliencia económica de las regiones en respuesta a las grandes crisis económicas. Basándose en los conceptos de adaptación/adaptabilidad, el análisis investiga la relación de las nuevas especializaciones industriales con la estructura industrial existente antes y después de una crisis. Evaluando la resiliencia de las provincias italianas en relación con la crisis económica de 2008, el análisis pretende comprender si las provincias que resistieron y se recuperaron mejor siguieron un marco de Smart Specialisation en el que las nuevas especializaciones industriales están relacionadas con la estructura industrial existente

    In-vitro evaluation of different antimicrobial combinations with and without colistin against carbapenem-resistant acinetobacter baumannii

    Get PDF
    Carbapenem-resistant Acinetobacter baumannii (CR-Ab) infections are associated with high morbidity and mortality. The aim of the study was to evaluate the in-vitro activity of different antimicrobial combinations (with and without colistin, COL) against clinical isolates of CR-Ab collected from patients with CR-Ab infection, including unconventional combinations such as COL + VANcomycin (VAN) and COL + rifampin (RIF). CR-Ab strains were collected from hospitalized patients at Sapienza University of Rome. Antimicrobial susceptibility patterns were determined throughout MIC50/90s whereas the synergistic activity was evaluated by qualitative (i.e., checkerboard) and quantitative (i.e., killing studies) methods. All the strains were found oxacillinase (OXA) producers and tigecycline (TIG) sensitive whereas 2 strains were resistant to COL. Application of the checkerboard method indicated complete synergism in COL combinations at different extension: 21.4%, 57.1%, 42.8%, 35.7% for COL + meropenem (MEM), COL + RIF, COL + VAN and COL + TIG, respectively, with the non-conventional combinations COL + VAN and COL + RIF exhibiting the highest rate of synergism. Regarding COL-free combination, complete synergism was observed in 35.7% of the strains for MEM + TIG. Killing studies showed that the combinations COL + MEM, COL + TIG and MEM + TIG were bactericidal and synergistic against both colistin-sensitive and low colistin-resistant strains whereas only the combinations COL + VAN and COL + RIF showed an early and durable bactericidal activity against all the tested strains, with absence of growth at 24 h. This study demonstrated that COL-based combinations lead to a high level of synergic and bactericidal activity, especially COL + VAN and COL + RIF, even in the presence of high level of COL resistance

    Open Innovation, Soft Branding and Green Influencers: Critiquing 'Fast Fashion' and 'Overtourism'

    Get PDF
    This paper explores digital reality replication for cultural consumption and green-digital open-system innovation, along with responsible, sustainable practices fashioned in a post-COVID-19 era. We address these after the dystopian effects of lockdown on global tourism and, in particular, the looming crisis of unsustainable 'overtourism'. The aim of this paper is to disclose problems and policies related to moderating consumption to more sustainable levels. The scope of the article tackles three fields: urban re-branding, fast fashion, and overtourism. Each problem area is analysed against the background of digital surveillance in the attention economy with the aid of a conceptual model. Accordingly, the principal objectives of this paper are to analyse key sustainability problem sources, evolutionary processes, and policy responses. The paper's originality and value lie in its recognition of tractable problem engagement through conceptual and practicable methods. This contribution also explores other consumption modes that tourists appreciate, namely, retail activity and its unsustainable "fast fashion" obsession. Finally, the paper analyses urban soft branding, the third tourism attractor within the niche touristic activity of the creative-cultural and gastronomic kind, which also features impulses that affect the perpetuation of unsustainable touristic practices. Thus, this contribution also assesses various studies on tourism futures that exploit digital media to assist in conserving both natural and cultural environments. Accordingly, we first narrate the soft re-branding of an "Art City" as a "Fashion City" and consider the example of green-digital innovation in the cultural milieu of Florence, Italy, in light of criticism of the unsustainability of "fast fashion". We consider which actions are envisioned or advised in the similarly "over-touristed" city of Venice. In a different vein, we consider whether the mobilisation of 'pop celebrity' performers such as audience engagers or influencers works for sustainable intervention through an assessment of the cultural interventions of Madonna in Lisbon. Finally, we anatomise "green" politics and policies for creative-cultural cities with the support of digital media to influence sustainable actions to moderate or, alternatively, revitalise polluted, congested, or otherwise over-touristed city centres. The greening of central Paris, Barcelona, Milan, and London offer a a series of examples of this type of moderation and revitalisation. Keywords: digital reproduction; open innovation; lockdown; overtourism; soft branding; influencer

    Chemical and antimicrobial analyses of Sideritis romana L. subsp. purpurea (Tal. ex Benth.) Heywood, an endemic of the Western Balkan

    Get PDF
    A comprehensive study on essential oil and different solvent extracts of Sideritis romana L. subsp. purpurea (Tal. ex Benth.) Heywood (Lamiaceae) from Montenegro is reported. The gas chromatography-mass spectrometry analysis of the essential oil revealed a total of 43 components with bicyclogermacrene (23.8%), germacrene D (8%), (E)-caryophyllene (7.9%) and spathulenol (5.5%) as the major ones. Sesquiterpenoid group was found to be the most dominant one (64.8%), with 19.9% of the oxygenated forms. In the crude methanol extract of the investigated plant, obtained by Sohhlet exraction, the total phenol content was 14.7 ± 0.4 mg of GA/g, the total flavonoids were 0.29 ± 0.03% expressed as hyperoside percentage, whereas the total tannins content was 0.22 ± 0.04% expressed as pyrogallol percentage. For the antimicrobial activity determination, the following microorganisms have been used: methicillin-susceptible Staphylococcus aureus (MSSA (American Type Culture Collection (ATCC) 29213)) and methicillin-resistant S. aureus (MRSA (clinical strain)), Escherichia coli (ATCC 25922), carbapenem-susceptible Klebsiella pneumoniae (clinical strain), carbapenem-resistant K. pneumoniae (clinical strain) and Candida albicans (ATCC 14053). The essential oil showed high potency against MSSA and MRSA, both at high (~5 × 10 5 CFU/mL) and low (~5 × 10 3 CFU/mL) inoculum. With respect to MSSA, the minimal inhibitory concentration (MIC) value was 0.307 mg/mL, with bactericidal activity obtained at 0.615 mg/mL, while, in the case of MRSA, the MIC and minimal bactericidal concentration (MBC) values were 0.076 and 0.153 mg/mL, respectively. Regarding anti-Candida albicans activity, the MIC value was 2.46 mg/mL without reaching fungicidal activity. In addition to the observed essential oil efficacy, different solvent extracts were analyzed for their antimicrobial activity. Similarly to the essential oil, thehighest efficacy was observed against both MSSA and MRSA strains, at high and low inoculums, in the case of the 1,2-dichloroethane and methanol extracts. A potent fungicidal activity has been also found for the n-hexane and 1,2-dichloroethane extracts. It can be concluded that Sideritis romana L. subsp. purpurea (Tal. ex Benth.) Heywood provides a wide range of application in different fields such as phytochemistry, pharmacology, toxicology or pharmacognosy

    High potency of melaleuca alternifolia essential oil against multi-drug resistant gram-negative bacteria and methicillin-resistant staphylococcus aureus

    Get PDF
    Purpose: Herein, an extended investigation of Tea tree oil (TTO) against a number of multi-drug resistant (MDR) microorganisms in liquid and vapor phases is reported. Methods: The activity of TTO was tested against methicillin-sensitive Staphylococcus aureus (MSSA), Escherichia coli, and clinical strains of methicillin-resistant S. aureus (MRSA), extended-spectrum beta lactamases producer carbapenem-sensitive Klebsiella pneumoniae (ESBL-CS-Kp), carbapenem-resistant K. pneumoniae (CR-Kp), Acinetobacter baumannii (CR-Ab), and Pseudomonas aeruginosa (CR-Pa). Minimal inhibitory/bactericidal concentrations (MIC/MBCs) and synergistic activity between TTO and different antimicrobials were determined. In the vapor assay (VP), TTO-impregnated discs were placed on the lid of a petri dish and incubated for 24 h at 37°C. Results: TTO showed a potent bactericidal activity against all the tested microorganisms. TTO in combination with each reference antimicrobial showed a high level of synergism at sub-inhibitory concentrations, particularly with oxacillin (OXA) against MRSA. The VP assay showed high activity of TTO against CR-Ab. Conclusion: Evaluation of in-vitro activity clearly indicated TTO as a potential effective antimicrobial treatment either alone or in association with known drugs against MDR. Therefore, TTO could represent the basis for a possible role in non-conventional regimens against S. aureus and Gram-negative MDR. TTO in VP might represent a promising option for local therapy of pneumonia caused by CR-Ab

    The Novel Antitubulin Agent TR-764 Strongly Reduces Tumor Vasculature and Inhibits HIF-1α Activation

    Get PDF
    Tubulin binding agents (TBAs) are commonly used in cancer therapy as antimitotics. It has been described that TBAs, like combretastatin A-4 (CA-4), present also antivascular activity and among its derivatives we identified TR-764 as a new inhibitor of tubulin polymerization, based on the 2-(alkoxycarbonyl)-3-(3',4',5'-trimethoxyanilino)benzo[b]thiophene molecular skeleton. The antiangiogenic activity of TR-764 (1-10 nM) was tested in vitro on human umbilical endothelial cells (HUVECs), and in vivo, on the chick embryo chorioallantoic membrane (CAM) and two murine tumor models. TR-764 binding to tubulin triggers cytoskeleton rearrangement without affecting cell cycle and viability. It leads to capillary tube disruption, increased cell permeability, and cell motility reduction. Moreover it disrupts adherens junctions and focal adhesions, through mechanisms involving VE-cadherin/β-catenin and FAK/Src. Importantly, TR-764 is active in hypoxic conditions significantly reducing HIF-1α. In vivo TR-764 (1-100 pmol/egg) remarkably blocks the bFGF proangiogenic activity on CAM and shows a stronger reduction of tumor mass and microvascular density both in murine syngeneic and xenograft tumor models, compared to the lead compound CA-4P. Altogether, our results indicate that TR-764 is a novel TBA with strong potential as both antivascular and antitumor molecule that could improve the common anticancer therapies, by overcoming hypoxia-induced resistance mechanisms
    corecore