52 research outputs found

    The role of environmental sustainability in the relocation choices of MNEs: Back to the home country or welcome in a new host country?

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    This study investigates how firms' awareness of environmental sustainability affects the revision of their internationalization strategies. Combining Stakeholder and Signalling theories, we argue that firms concerned with environmental sustainability have a higher propensity to return to their home country when confronted with the need to relocate foreign manufacturing subsidiaries, in order to match Corporate Social Responsibility (CSR) stakeholder expectations and enhance the effectiveness of sustainable disclosure endeavours. We also argue that the home country's environmental policy stringency, reflecting a stronger pressure by stakeholders and a higher need for effective signals, positively moderates the relationship between the firm environmental sustainability concern and the likelihood to move back home. The empirical analysis conducted on a sample of 150 relocations performed across European nations in 2002–2016 reveals that MNEs signalling their CSR are more likely to backshore only in case of rigid environmental laws, which are perceived as an opportunity to align with CSR stakeholder expectations and to amplify the benefits of disclosing the shortening of their global value chain

    Detrimental Impact of Interferon-Based Regimens for Chronic Hepatitis C on Vitamin D/Parathyroid Hormone Homeostasis

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    Background: Both the anti-infective and anti-inflammatory properties of vitamin D, an essential hormone of calcium homeostasis, have ample support in the literature. The high rates of vitamin D deficiency among patients with chronic hepatitis C are also well known. That supplementation with vitamin D may boost sustained viral response rates in vitamin D deficient, hepatitis C virus (HCV) infected patients undergoing Interferon-alpha (IFN) treatment, on the other hand, is controversial. Surprisingly, studies considering in this latter setting what are the effects of IFN treatment (with or without vitamin D supplementation) on the other major regulator of mineral metabolism, i.e. the Parathyroid hormone (PTH), are lacking. Aim: Evaluate the impact of interferon-based treatment against HCV (±cholecalciferol supplementation) on vitamin D and PTH homeostasis. Methods: A series of 40 consecutive patients received pegylated IFN plus ribavirin to treat chronic hepatitis C. At the discretion of their physician, some of them (N. = 27) received vitamin D supplementation while others did not (N. = 13). All had measured plasma 25-hydroxycholecalciferol and PTH concentrations at baseline, at completion of the 4th (TW4) and 12th treatment week (TW12) and at 24 weeks after the end of therapy (SVR24). Results: Plasma PTH concentration increased significantly from baseline during treatment, raising to 44.8 [30.7-57.2] pg/mL at TW4 (p=0.01), 47.0 [37.1-63.2] pg/mL at TW12 (p=0.006) to return to baseline levels in the follow-up (34.5 [27.6-43.0]; p=0.16). The proportion of patients who satisfied criteria for hyperparathyroidism was higher at TW12 (N=10, 25%) than at TW4 (N=6, 15%). There was no statistical correlation between vitamin D and PTH blood levels (ρ=-0.07; p=0.65). Conclusion: An increase in plasma PTH occurs systematically during IFN treatment of HCV patients and cannot be prevented by vitamin D supplementation

    Small Plasma Focus as Neutron Pulsed Source For Nucleids Identification

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    In this paper, we present preliminary results on the feasibility of employing a low energy (2 kJ, 31 kV) plasma focus device as a portable source of pulsed neutron beams (2.45 MeV) generated by nuclear fusion reactions D-D, for the “in situ” analysis of substances by nuclear activation. This source has the relevant advantage of being pulsed at requirement, transportable, not permanently radioactive, without radioactive waste, cheap, among others. We prove the feasibility of using this source showing several spectra of the characteristic emission line for manganese, gold, lead, and silverFil: Milanese, Maria Magdalena. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico - CONICET - Tandil. Centro de Investigaciones en FĂ­sica e IngenierĂ­a del Centro de la Provincia de Buenos Aires; Argentina;Fil: Niedbalski, Jorge Julio. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico - Conicet - Tandil. Centro de Investigaciones En FĂ­sica E IngenierĂ­a del Centro de la Provincia de Buenos Aires, Argentina;Fil: Moroso, Roberto Luis. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico - Conicet - Tandil. Centro de Investigaciones En FĂ­sica E IngenierĂ­a del Centro de la Provincia de Buenos Aire;Fil: Barbaglia, Mario Oscar. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico - Conicet - Tandil. Centro de Investigaciones En FĂ­sica E IngenierĂ­a del Centro de la Provincia de Buenos Aire;Fil: Mayer, Roberto Edmundo. ComisiĂłn Nacional de EnergĂ­a AtĂłmica; Argentina;Fil: Castillo, Fernando Anibal. Instituto de Ciencias Nucleares. Universidad Nacional AutĂłnoma de MĂ©xico; MĂ©xico;Fil: GuichĂłn, S.. Universidad Nacional del Centro de la Provincia de Bs.as.. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina

    Overcoming barriers to the effective management of severe asthma in Italy

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    Introduction: People with severe asthma (SA) often have poor disease control and quality of life, and are at high risk of exacerbations, lung function decline and asthma-related death. The present expert opinion article aimed to identify unmet needs in the management of SA in Italy, and propose possible solutions to address these needs. Methods: At five multidisciplinary events in Italy, attendees identified factors that interfered with the effective management of SA and suggested how these barriers could be overcome. A core group of 12 Italian experts (pulmonologists, general practitioners, allergists, payers and patients) identified the main issues and proposed possible solutions based on the results from the meetings and relevant articles from the literature. Results and Conclusions: We reviewed the gap between real-world practice and guide-lines, oral corticosteroid overuse, SA-related mortality, and barriers to effective SA treat-ment. Common themes were lack of awareness about SA among both patients and clinicians, and lack of networking/information exchange between those involved in the treatment of SA. Participants agreed on the need to implement patient education and create multidisciplinary groups of specialists to improve SA management through multidisciplinary educational initiatives, meetings with local experts, development of a flow chart for referral/connection with local experts and specialized centers. Clinical instruments that might help specialists improve SA management included referral networks, integrated care pathways, phenotyping and treatment algorithms, exacerbation tracking, and examination of electronic medical records for patients with uncontrolled asthma. The following actions need to be implemented in Italy: i) maximize the use of advanced therapies, eg, biologics; ii) increase/improve education for physicians and patients; iii) improve multidisciplinary communication and care coordination; iv) introduce regional and local protocols for SA diagnosis and treatment; and v) change the structure of healthcare services to reduce specialist waiting times and facilitate access to biologic therapies

    Nutritional status in post SARS-Cov2 rehabilitation patients

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    After prolonged hospitalization, the assessment of nutritional status and the identification of adequate nutritional support is of paramount importance. In this observational study, we aimed at assessing the presence of a malnutrition condition in SARS-Cov2 patients after the acute phase and the effects of a multidisciplinary rehabilitation program on nutritional and functional status

    CAS: centre for advanced studies

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    The JRC‘s Centre for Advanced Studies (CAS) was created in 2016 to help improve and bridge the interface between science and policy in order to enhance the JRC‘s capacity to better inform and influence the regulatory frameworks needed to address the new and emerging societal challenges confronting the EU and our societies as a whole. By creating the conditions necessary for innovative and interdisciplinary research, as well as offering a creative and generative space in which ideas and knowledge in emerging thematic fields across different scientific and technological disciplines can thrive and flourish, CAS has become an incubator for formal inquiry, stimulating ideas and activities and providing the JRC with new insights, data projections and solutions for the increasingly complex medium and longterm challenges facing the EU, especially in the fields of demography, big data and digital transformation. Through the performance of advanced, cutting edge research, ranging from applied research to topics of a more academic character, all within a stimulating trans- and interdisciplinary environment, CAS allows external researchers and scientists to work together with the JRC to explore and exchange new ideas and knowledge on scientific research in emerging fields of strategic societal importance, which might otherwise fall outside the policy support activities undertaken by the JRC on behalf of the European Commission

    Breast cancer incidence and overdiagnosis in Catalonia (Spain)

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    Introduction: Early detection of breast cancer (BC) with mammography may cause overdiagnosis and overtreatment, detecting tumors which would remain undiagnosed during a lifetime. The aims of this study were: first, to model invasive BC incidence trends in Catalonia (Spain) taking into account reproductive and screening data; and second, to quantify the extent of BC overdiagnosis. Methods: We modeled the incidence of invasive BC using a Poisson regression model. Explanatory variables were: age at diagnosis and cohort characteristics (completed fertility rate, percentage of women that use mammography at age 50, and year of birth). This model also was used to estimate the background incidence in the absence of screening. We used a probabilistic model to estimate the expected BC incidence if women in the population used mammography as reported in health surveys. The difference between the observed and expected cumulative incidences provided an estimate of overdiagnosis. Results: Incidence of invasive BC increased, especially in cohorts born from 1940 to 1955. The biggest increase was observed in these cohorts between the ages of 50 to 65 years, where the final BC incidence rates more than doubled the initial ones. Dissemination of mammography was significantly associated with BC incidence and overdiagnosis. Our estimates of overdiagnosis ranged from 0.4% to 46.6%, for women born around 1935 and 1950, respectively. Conclusions: Our results support the existence of overdiagnosis in Catalonia attributed to mammography usage, and the limited malignant potential of some tumors may play an important role. Women should be better informed about this risk. Research should be oriented towards personalized screening and risk assessment tools

    Ancient horizontal gene transfer and the last common ancestors

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    Background The genomic history of prokaryotic organismal lineages is marked by extensive horizontal gene transfer (HGT) between groups of organisms at all taxonomic levels. These HGT events have played an essential role in the origin and distribution of biological innovations. Analyses of ancient gene families show that HGT existed in the distant past, even at the time of the organismal last universal common ancestor (LUCA). Most gene transfers originated in lineages that have since gone extinct. Therefore, one cannot assume that the last common ancestors of each gene were all present in the same cell representing the cellular ancestor of all extant life. Results Organisms existing as part of a diverse ecosystem at the time of LUCA likely shared genetic material between lineages. If these other lineages persisted for some time, HGT with the descendants of LUCA could have continued into the bacterial and archaeal lineages. Phylogenetic analyses of aminoacyl-tRNA synthetase protein families support the hypothesis that the molecular common ancestors of the most ancient gene families did not all coincide in space and time. This is most apparent in the evolutionary histories of seryl-tRNA synthetase and threonyl-tRNA synthetase protein families, each containing highly divergent “rare” forms, as well as the sparse phylogenetic distributions of pyrrolysyl-tRNA synthetase, and the bacterial heterodimeric form of glycyl-tRNA synthetase. These topologies and phyletic distributions are consistent with horizontal transfers from ancient, likely extinct branches of the tree of life. Conclusions Of all the organisms that may have existed at the time of LUCA, by definition only one lineage is survived by known progeny; however, this lineage retains a genomic record of heterogeneous genetic origins. The evolutionary histories of aminoacyl-tRNA synthetases (aaRS) are especially informative in detecting this signal, as they perform primordial biological functions, have undergone several ancient HGT events, and contain many sites with low substitution rates allowing deep phylogenetic reconstruction. We conclude that some aaRS families contain groups that diverge before LUCA. We propose that these ancient gene variants be described by the term “hypnologs”, reflecting their ancient, reticulate origin from a time in life history that has been all but erased”.National Science Foundation (U.S.) (Grant DEB 0830024)Exobiology Program (U.S.) (Grant NNX10AR85G)United States. National Aeronautics and Space Administration (Postdoctoral Program

    Maize RNA PolIV affects the expression of genes with nearby TE insertions and has a genome-wide repressive impact on transcription

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    Abstract Background RNA-directed DNA methylation (RdDM) is a plant-specific epigenetic process that relies on the RNA polymerase IV (Pol IV) for the production of 24 nucleotide small interfering RNAs (siRNA) that guide the cytosine methylation and silencing of genes and transposons. Zea mays RPD1/RMR6 gene encodes the largest subunit of Pol IV and is required for normal plant development, paramutation, transcriptional repression of certain transposable elements (TEs) and transcriptional regulation of specific alleles. Results In this study we applied a total RNA-Seq approach to compare the B73 and rpd1/rmr6 leaf transcriptomes. Although previous studies indicated that loss of siRNAs production in RdDM mutants provokes a strong loss of CHH DNA methylation but not massive gene or TEs transcriptional activation in both Arabidopsis and maize, our total RNA-Seq analysis of rpd1/rmr6 transcriptome reveals that loss of Pol IV activity causes a global increase in the transcribed fraction of the maize genome. Our results point to the genes with nearby TE insertions as being the most strongly affected by Pol IV-mediated gene silencing. TEs modulation of nearby gene expression is linked to alternative methylation profiles on gene flanking regions, and these profiles are strictly dependent on specific characteristics of the TE member inserted. Although Pol IV is essential for the biogenesis of siRNAs, the genes with associated siRNA loci are less affected by the pol IV mutation. Conclusions This deep and integrated analysis of gene expression, TEs distribution, smallRNA targeting and DNA methylation levels, reveals that loss of Pol IV activity globally affects genome regulation, pointing at TEs as modulator of nearby gene expression and indicating the existence of multiple level epigenetic silencing mechanisms. Our results also suggest a predominant role of the Pol IV-mediated RdDM pathway in genome dominance regulation, and subgenome stability and evolution in maize
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