344 research outputs found

    Introduction to the special issue: between practices and policies. Rethinking urban regeneration in Southern European cities after the crisis

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    This Special Issue explores new approaches to urban regeneration, and potentially give new meanings to the term itself, as it appears in the context of austerity urbanism. In particular, the aim of this Special Issue is to offer a Southern European perspective of the nexus between the withdrawal of the State from urban governance, and of the new forms of cooperation arising from civil society, thus presenting original research material, and innovative perspectives, for current debates in urban studies

    Fatigue in Rheumatoid Arthritis Benchmark Study

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    Fatigue is perceived as one of the dominant symptoms of Rheumatoid Arthritis (RA) along with the pain that affects activities of daily life. RA-related fatigue was also described as unpredictable in its severity, duration, frequency, and intensity (Primdahl et al., 2019). The fatigue can mean feeling overwhelmed with feeling tired, unmotivated, increased pain, lack of concentration, or not getting enough sleep to combat the feeling of being tired (Choy & Dures, 2019). According to Widemark (2014), it is estimated that 40% to nearly 90% of RA patients experience chronic fatigue. The fatigue can happen at any time with RA. It is reported during remission and during flare-ups of joint pain and swelling. The physiological and psychological impact that fatigue has on a patients’ daily life should equally be addressed. There are medications to slow joint deformity and reduce pain, but there is no medication or defined regimen for the management of RA-related fatigue

    ESPON Project 2.3.1., Application and effects of the ESDP in Member States. First Interim Report

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    This First Interim Report includes the initial results of the project “Application and Effects of the ESDP in the Member States” within the ESPON Programme 2000-2006. The focus of the study is the application of the European Spatial Development Perspective (ESDP), which was adopted at the Potsdam European Council meeting in May 1999

    A multidisciplinary study on the spatial variability of the local stratigraphic conditions in partially saturated slopes for flow-like landslide prediction

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    Flow-like landslides, which occur mainly in shallow granular deposits resting on steep bedrock, represent a major natural hazard worldwide. The pore water pressure distribution and the soil water content directly affect the soil shear strength, thus controlling the triggering of these landslides. Criticalgeomorphological and topographical settings, together with peculiar stratigraphic and hydrogeological features, are commonly recognized as predisposing factors for flow-like landslides occurrence. Hence, investigating the spatial and temporal variability of hydraulic slope conditions is a fundamental activity that consists of identifying local geological factors and seasonal monitoring of the subsurface water regime. The present work proposes an integrated geological, geophysical and geotechnical approach to identify the spatial variability of the local stratigraphic setting and hydrogeological conditions in a partially saturated slope, in order to set up a procedure able to provide a prediction of the flow-like landslides occurrence atslope scale. The multidisciplinary study has been applied to a test site on Mt. Faito, in the Lattari Mts. (Southern Italy), where extensive geophysical, geological and geotechnical soil characterization and in situmonitoring data collected over two years are available

    Complex chloroplast RNA metabolism: just debugging the genetic programme?

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    <p>Abstract</p> <p>Background</p> <p>The gene expression system of chloroplasts is far more complex than that of their cyanobacterial progenitor. This gain in complexity affects in particular RNA metabolism, specifically the transcription and maturation of RNA. Mature chloroplast RNA is generated by a plethora of nuclear-encoded proteins acquired or recruited during plant evolution, comprising additional RNA polymerases and sigma factors, and sequence-specific RNA maturation factors promoting RNA splicing, editing, end formation and translatability. Despite years of intensive research, we still lack a comprehensive explanation for this complexity.</p> <p>Results</p> <p>We inspected the available literature and genome databases for information on components of RNA metabolism in land plant chloroplasts. In particular, new inventions of chloroplast-specific mechanisms and the expansion of some gene/protein families detected in land plants lead us to suggest that the primary function of the additional nuclear-encoded components found in chloroplasts is the transgenomic suppression of point mutations, fixation of which occurred due to an enhanced genetic drift exhibited by chloroplast genomes. We further speculate that a fast evolution of transgenomic suppressors occurred after the water-to-land transition of plants.</p> <p>Conclusion</p> <p>Our inspections indicate that several chloroplast-specific mechanisms evolved in land plants to remedy point mutations that occurred after the water-to-land transition. Thus, the complexity of chloroplast gene expression evolved to guarantee the functionality of chloroplast genetic information and may not, with some exceptions, be involved in regulatory functions.</p

    Integrin αvβ5 is a primary receptor for adenovirus in CAR-negative cells

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    <p>Abstract</p> <p>Background</p> <p>Viruses bind to specific cellular receptors in order to infect their hosts. The specific receptors a virus uses are important factors in determining host range, cellular tropism, and pathogenesis. For adenovirus, the existing model of entry requires two receptor interactions. First, the viral fiber protein binds Coxsackie and Adenovirus Receptor (CAR), its primary cellular receptor, which docks the virus to the cell surface. Next, viral penton base engages cellular integrins, coreceptors thought to be required exclusively for internalization and not contributing to binding. However, a number of studies reporting data which conflicts with this simple model have been published. These observations have led us to question the proposed two-step model for adenovirus infection.</p> <p>Results</p> <p>In this study we report that cells which express little to no CAR can be efficiently transduced by adenovirus. Using competition experiments between whole virus and soluble viral fiber protein or integrin blocking peptides, we show virus binding is not dependent on fiber binding to cells but rather on penton base binding cellular integrins. Further, we find that binding to low CAR expressing cells is inhibited specifically by a blocking antibody to integrin αvβ5, demonstrating that in these cells integrin αvβ5 and not CAR is required for adenovirus attachment. The binding mediated by integrin αvβ5 is extremely high affinity, in the picomolar range.</p> <p>Conclusions</p> <p>Our data further challenges the model of adenovirus infection in which binding to primary receptor CAR is required in order for subsequent interactions between adenovirus and integrins to initiate viral entry. In low CAR cells, binding occurs through integrin αvβ5, a receptor previously thought to be used exclusively in internalization. We show for the first time that integrin αvβ5 can be used as an alternate binding receptor.</p

    The association between insight and depressive symptoms in schizophrenia: Undirected and Bayesian network analyses

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    Background. Greater levels of insight may be linked with depressive symptoms among patients with schizophrenia, however, it would be useful to characterize this association at symptom-level, in order to inform research on interventions. Methods. Data on depressive symptoms (Calgary Depression Scale for Schizophrenia) and insight (G12 item from the Positive and Negative Syndrome Scale) were obtained from 921 community-dwelling, clinically-stable individuals with a DSM-IV diagnosis of schizophrenia, recruited in a nationwide multicenter study. Network analysis was used to explore the most relevant connections between insight and depressive symptoms, including potential confounders in the model (neurocognitive and social-cognitive functioning, positive, negative and disorganization symptoms, extrapyramidal symptoms, hostility, internalized stigma, and perceived discrimination). Bayesian network analysis was used to estimate a directed acyclic graph (DAG) while investigating the most likely direction of the putative causal association between insight and depression. Results. After adjusting for confounders, better levels of insight were associated with greater self-depreciation, pathological guilt, morning depression and suicidal ideation. No difference in global network structure was detected for socioeconomic status, service engagement or illness severity. The DAG confirmed the presence of an association between greater insight and self-depreciation, suggesting the more probable causal direction was from insight to depressive symptoms. Conclusions. In schizophrenia, better levels of insight may cause self-depreciation and, possibly, other depressive symptoms. Person-centered and narrative psychotherapeutic approaches may be particularly fit to improve patient insight without dampening self-esteem

    Observation of the J/ψJ/\psi and ψ(3686)\psi(3686) decays into ηΣ+Σˉ\eta\Sigma^{+}\bar{\Sigma}^{-}

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    The decays J/ψηΣ+ΣˉJ/\psi\to\eta\Sigma^{+}\bar{\Sigma}{}^- and ψ(3686)ηΣ+Σˉ\psi(3686)\to\eta\Sigma^{+}\bar{\Sigma}{}^- are observed for the first time, using (10087±44)×106(10087 \pm 44)\times 10^{6} J/ψJ/\psi and (448.1±2.9)×106(448.1 \pm 2.9)\times 10^{6} ψ(3686)\psi(3686) events collected with the BESIII detector at the BEPCII collider. We determine the branching fractions of these two decays to be B(J/ψηΣ+Σˉ)=(6.34±0.21±0.37)×105{\cal B}(J/\psi\to\eta\Sigma^{+}\bar{\Sigma}{}^-)=(6.34 \pm 0.21 \pm 0.37)\times 10^{-5} and B(ψ(3686)ηΣ+Σˉ)=(9.59±2.37±0.61)×106{\cal B}(\psi(3686)\to\eta\Sigma^{+}\bar{\Sigma}{}^-)=(9.59 \pm 2.37 \pm 0.61)\times 10^{-6}, where the first uncertainties are statistical and the second are systematic. The ratio of these two branching fractions is determined to be B(ψ(3686)ηΣ+Σˉ)B(J/ψηΣ+Σˉ)=(15.1±3.8)%\frac{{\cal B}(\psi(3686)\to\eta\Sigma^{+}\bar{\Sigma}{}^-)}{{\cal B}(J/\psi\to\eta\Sigma^{+}\bar{\Sigma}{}^-)}=(15.1 \pm 3.8)\%, which is in agreement with the "12\% rule."Comment: 9 pages and 10 figure
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