542 research outputs found

    Distinctions Between Photographs Matter: Theorising the Artistic Legitimisation of Photography in Italy

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    The paper investigates the collective efforts at legitimising photography as art by focusing on field-members' discourses. The analysis draws on in-depth face-to-face interviews with photography professionals and ethnographic data collected in Italy. Field actors adopt a strategy of discursive theorisation, namely differentiation, to promote the artistic legitimisation of photography. Differentiation is the discursive opposition between worthy and un-worthy individuals, groups and cultural products, sustained by referencing an artistic ideology. The analysis stresses how differentiation pertains to several analytical dimensions at the intersection of the social worlds of photography and art, and points out its limitations in legitimising photography when actors adopt differing legitimising principles

    (Non-)Sharing as a Form of Maternal Care? The Ambiguous Meanings of Sharenting for Mothers of 0- To-8-Year-Old Children

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    The present article reports on findings from a survey administered in (country anonymised) to a national representative sample of parents of children aged 0-8 around their sharenting behaviour. We first frame sharenting as a complex phenomenon where gendered, generational and agentic matters intertwine and mingle in complex ways. We then report results from a cluster analysis aimed at identifying different sharenting styles reflecting the scale and scope of parents’ sharing behaviour among our sample. The relationships between sharenting styles and parents’ socio-demographics, as well as parental practices of privacy management are further explored and reported. Altogether, findings provide insights into the experience of sharenting in family life pointing to a variety of sharing practices, while also showing first that sharenting represents a key site of identity performance for young mothers, and then how parents negotiate and manage related issues of agency and privacy

    The datafication of childhood: examining children's and parent's data practices, children's right to privacy and parent's dilemmas

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    With an ever-growing use and variety of digital devices, most recently the Internet of Things, children’s and family privacy is an important topic with many under-researched aspects (Livingstone, Stoilova, Nandagiri, 2019). Although children and adolescents might be more likely to share greater amounts of personal information than adults, and to apply more lenient privacy settings on social media (Walrave, Vanwesenbeeck, & Heirman, 2012), studies have also shown that young people tend to care about their privacy (see e.g. boyd, 2014; Marwick & boyd, 2014). In this article, we examine “privacy concern” as a possible source of motivation for privacy protecting behaviors. According to the widely used Communication Privacy Management (CPM) theory (Petronio, 2002, 2015), higher privacy concern leads to employing more restrictive privacy behaviors. Nonetheless, previous research has also identified the concept of “privacy paradox” (De Wolf cf. Acquisti & Gross, 2006; Hargittai & Marwick, 2016), which proposes that despite reported privacy concern, young people nonetheless disclose large amounts of information about themselves. A possible explanation is in the feeling of a lack of control in networked environments generating “apathy” and “cynicism” and the impression that “privacy violations are inevitable” (Hargittai & Marwick, 2016, p. 3752). We test the paradox by studying whether children who report greater privacy concern actually disclose more or less personal information about themselves; or otherwise engage in behaviors that might jeopardize their privacy (e.g. by using wearable devices and the Internet of Things, which might expose them to increased levels of data collection for commercial purposes). We further examine whether children whose parents or caregivers share significant amounts of information about them, and children who have experienced sharentingrelated breaches (such as being upset about what their parents have posted online) are more likely to be concerned about their privacy than other children. Following CPM, such breaches, which the theory terms as “turbulence” would lead to higher privacy concern. Finally, we also test whether children whose parents display higher levels of privacy concern tend to be more concerned about their privacy as well. We study these questions on a nationally representative sample of 9-17-year-old Internet using children from Norway and one of their parents/caregivers, conducted as part of the EU Kids Online project in 2018. As a case study, Norway is a country where the use of digital technology among youth is very high, as confirmed by the most recent analyses on nationally representative samples of children in 19 European countries; and so is exposure to risks (Smahel et al., 2020; Helsper et al., 2013). While children’s independent smartphone and social media use starts early, children also tend to enjoy significant family, social and policy-level support for safe digital media use, as compared to other European countries. With this in mind, we ask the following research questions: RQ1: What are the characteristics of children who report grater levels of concern for their privacy online and with digital technology? RQ1a: Are children with higher digital skills more worried about their privacy (because they are more aware of the dangers)? RQ1b: Are children who have experienced privacy or data-protection-related harms more likely to report privacy concerns? RQ2: What are the characteristics of families of children who report grater levels of concern for their privacy online and with digital technology? RQ2a: How are parental attitudes to privacy online and with digital technology related to children’s levels of concern for their privacy? RQ2b: What is the relationship between parental digital skills and children’s levels of concern for their privacy? RQ3: Do children who report higher privacy concern share more information about themselves online than children who report lower concern? RQ3a: Are children who report higher privacy concern less likely than other children to use wearable devices and the Internet of Things devices? Sampling and method This study relies on a nationally representative survey sample of Internet-using children in Norway. The data was collected between June and October 2018 within the EU Kids Online research project. 1001 children of both sexes, aged from 9 to 17 years, were interviewed via CASI method. The data was collected by Ipsos Mori. 47.1% of the sample was female, Mage= 13.3. The sampling frame was stratified by the economic characteristics of municipalities as well as the number of 9 to 17-year-old children who lived there. Respondents were initially recruited by telephone, followed by face-to-face interviews at home. Respondents’ anonymity and confidentiality were secured. The data collection was approved by the Norwegian national Data Authority (Datatilsynet), and followed procedures established by the National Ethical Committees for Social Science and Humanities and by the Norwegian Center for Research Data (NSD). Informed consent was obtained from each parent and each child that participated. Data analyses and initial results In order to verify determinants of higher levels of privacy concern in children and teenagers, we conducted a series of logistic regression analyses in the proportional odds model, controlling for child demographics and psychological characteristics. Findings indicate that privacy breaches such as sharenting, as well as general risk experiences significantly predict higher levels of privacy concern. Furthermore, children who declare having found themselves in a situation where they could use the privacyrelated advice (e.g. on sharing personal information online) are also more concerned about their privacy online. Additionally, parental level of privacy concern seems to have a modelling effect on a child’s attitude towards privacy online. Preliminary analyses into privacy paradox did not provide support for nor evidence against the effect

    Disease-Modifying Therapies and Coronavirus Disease 2019 Severity in Multiple Sclerosis

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    Objective: This study was undertaken to assess the impact of immunosuppressive and immunomodulatory therapies on the severity of coronavirus disease 2019 (COVID-19) in people with multiple sclerosis (PwMS). Methods: We retrospectively collected data of PwMS with suspected or confirmed COVID-19. All the patients had complete follow-up to death or recovery. Severe COVID-19 was defined by a 3-level variable: mild disease not requiring hospitalization versus pneumonia or hospitalization versus intensive care unit (ICU) admission or death. We evaluated baseline characteristics and MS therapies associated with severe COVID-19 by multivariate and propensity score (PS)-weighted ordinal logistic models. Sensitivity analyses were run to confirm the results. Results: Of 844 PwMS with suspected (n = 565) or confirmed (n = 279) COVID-19, 13 (1.54%) died; 11 of them were in a progressive MS phase, and 8 were without any therapy. Thirty-eight (4.5%) were admitted to an ICU; 99 (11.7%) had radiologically documented pneumonia; 96 (11.4%) were hospitalized. After adjusting for region, age, sex, progressive MS course, Expanded Disability Status Scale, disease duration, body mass index, comorbidities, and recent methylprednisolone use, therapy with an anti-CD20 agent (ocrelizumab or rituximab) was significantly associated (odds ratio [OR] = 2.37, 95% confidence interval [CI] = 1.18-4.74, p = 0.015) with increased risk of severe COVID-19. Recent use (<1 month) of methylprednisolone was also associated with a worse outcome (OR = 5.24, 95% CI = 2.20-12.53, p = 0.001). Results were confirmed by the PS-weighted analysis and by all the sensitivity analyses. Interpretation: This study showed an acceptable level of safety of therapies with a broad array of mechanisms of action. However, some specific elements of risk emerged. These will need to be considered while the COVID-19 pandemic persists

    COVID-19 Severity in Multiple Sclerosis: Putting Data Into Context

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    Background and objectives: It is unclear how multiple sclerosis (MS) affects the severity of COVID-19. The aim of this study is to compare COVID-19-related outcomes collected in an Italian cohort of patients with MS with the outcomes expected in the age- and sex-matched Italian population. Methods: Hospitalization, intensive care unit (ICU) admission, and death after COVID-19 diagnosis of 1,362 patients with MS were compared with the age- and sex-matched Italian population in a retrospective observational case-cohort study with population-based control. The observed vs the expected events were compared in the whole MS cohort and in different subgroups (higher risk: Expanded Disability Status Scale [EDSS] score > 3 or at least 1 comorbidity, lower risk: EDSS score ≀ 3 and no comorbidities) by the χ2 test, and the risk excess was quantified by risk ratios (RRs). Results: The risk of severe events was about twice the risk in the age- and sex-matched Italian population: RR = 2.12 for hospitalization (p < 0.001), RR = 2.19 for ICU admission (p < 0.001), and RR = 2.43 for death (p < 0.001). The excess of risk was confined to the higher-risk group (n = 553). In lower-risk patients (n = 809), the rate of events was close to that of the Italian age- and sex-matched population (RR = 1.12 for hospitalization, RR = 1.52 for ICU admission, and RR = 1.19 for death). In the lower-risk group, an increased hospitalization risk was detected in patients on anti-CD20 (RR = 3.03, p = 0.005), whereas a decrease was detected in patients on interferon (0 observed vs 4 expected events, p = 0.04). Discussion: Overall, the MS cohort had a risk of severe events that is twice the risk than the age- and sex-matched Italian population. This excess of risk is mainly explained by the EDSS score and comorbidities, whereas a residual increase of hospitalization risk was observed in patients on anti-CD20 therapies and a decrease in people on interferon

    SARS-CoV-2 serology after COVID-19 in multiple sclerosis: An international cohort study

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    DMTs and Covid-19 severity in MS: a pooled analysis from Italy and France

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    We evaluated the effect of DMTs on Covid-19 severity in patients with MS, with a pooled-analysis of two large cohorts from Italy and France. The association of baseline characteristics and DMTs with Covid-19 severity was assessed by multivariate ordinal-logistic models and pooled by a fixed-effect meta-analysis. 1066 patients with MS from Italy and 721 from France were included. In the multivariate model, anti-CD20 therapies were significantly associated (OR = 2.05, 95%CI = 1.39–3.02, p < 0.001) with Covid-19 severity, whereas interferon indicated a decreased risk (OR = 0.42, 95%CI = 0.18–0.99, p = 0.047). This pooled-analysis confirms an increased risk of severe Covid-19 in patients on anti-CD20 therapies and supports the protective role of interferon

    Study of the B−→Λc+Λˉc−K−B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} decay

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    The decay B−→Λc+Λˉc−K−B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} is studied in proton-proton collisions at a center-of-mass energy of s=13\sqrt{s}=13 TeV using data corresponding to an integrated luminosity of 5 fb−1\mathrm{fb}^{-1} collected by the LHCb experiment. In the Λc+K−\Lambda_{c}^+ K^{-} system, the Ξc(2930)0\Xi_{c}(2930)^{0} state observed at the BaBar and Belle experiments is resolved into two narrower states, Ξc(2923)0\Xi_{c}(2923)^{0} and Ξc(2939)0\Xi_{c}(2939)^{0}, whose masses and widths are measured to be m(Ξc(2923)0)=2924.5±0.4±1.1 MeV,m(Ξc(2939)0)=2938.5±0.9±2.3 MeV,Γ(Ξc(2923)0)=0004.8±0.9±1.5 MeV,Γ(Ξc(2939)0)=0011.0±1.9±7.5 MeV, m(\Xi_{c}(2923)^{0}) = 2924.5 \pm 0.4 \pm 1.1 \,\mathrm{MeV}, \\ m(\Xi_{c}(2939)^{0}) = 2938.5 \pm 0.9 \pm 2.3 \,\mathrm{MeV}, \\ \Gamma(\Xi_{c}(2923)^{0}) = \phantom{000}4.8 \pm 0.9 \pm 1.5 \,\mathrm{MeV},\\ \Gamma(\Xi_{c}(2939)^{0}) = \phantom{00}11.0 \pm 1.9 \pm 7.5 \,\mathrm{MeV}, where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt Λc+K−\Lambda_{c}^{+} K^{-} sample. Evidence of a new Ξc(2880)0\Xi_{c}(2880)^{0} state is found with a local significance of 3.8 σ3.8\,\sigma, whose mass and width are measured to be 2881.8±3.1±8.5 MeV2881.8 \pm 3.1 \pm 8.5\,\mathrm{MeV} and 12.4±5.3±5.8 MeV12.4 \pm 5.3 \pm 5.8 \,\mathrm{MeV}, respectively. In addition, evidence of a new decay mode Ξc(2790)0→Λc+K−\Xi_{c}(2790)^{0} \to \Lambda_{c}^{+} K^{-} is found with a significance of 3.7 σ3.7\,\sigma. The relative branching fraction of B−→Λc+Λˉc−K−B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} with respect to the B−→D+D−K−B^{-} \to D^{+} D^{-} K^{-} decay is measured to be 2.36±0.11±0.22±0.252.36 \pm 0.11 \pm 0.22 \pm 0.25, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-028.html (LHCb public pages

    Measurement of the ratios of branching fractions R(D∗)\mathcal{R}(D^{*}) and R(D0)\mathcal{R}(D^{0})

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    The ratios of branching fractions R(D∗)≡B(Bˉ→D∗τ−Μˉτ)/B(Bˉ→D∗Ό−ΜˉΌ)\mathcal{R}(D^{*})\equiv\mathcal{B}(\bar{B}\to D^{*}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}\to D^{*}\mu^{-}\bar{\nu}_{\mu}) and R(D0)≡B(B−→D0τ−Μˉτ)/B(B−→D0Ό−ΜˉΌ)\mathcal{R}(D^{0})\equiv\mathcal{B}(B^{-}\to D^{0}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(B^{-}\to D^{0}\mu^{-}\bar{\nu}_{\mu}) are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb−1{ }^{-1} of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode τ−→Ό−ΜτΜˉΌ\tau^{-}\to\mu^{-}\nu_{\tau}\bar{\nu}_{\mu}. The measured values are R(D∗)=0.281±0.018±0.024\mathcal{R}(D^{*})=0.281\pm0.018\pm0.024 and R(D0)=0.441±0.060±0.066\mathcal{R}(D^{0})=0.441\pm0.060\pm0.066, where the first uncertainty is statistical and the second is systematic. The correlation between these measurements is ρ=−0.43\rho=-0.43. Results are consistent with the current average of these quantities and are at a combined 1.9 standard deviations from the predictions based on lepton flavor universality in the Standard Model.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-039.html (LHCb public pages

    Multidifferential study of identified charged hadron distributions in ZZ-tagged jets in proton-proton collisions at s=\sqrt{s}=13 TeV

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    Jet fragmentation functions are measured for the first time in proton-proton collisions for charged pions, kaons, and protons within jets recoiling against a ZZ boson. The charged-hadron distributions are studied longitudinally and transversely to the jet direction for jets with transverse momentum 20 <pT<100< p_{\textrm{T}} < 100 GeV and in the pseudorapidity range 2.5<η<42.5 < \eta < 4. The data sample was collected with the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.64 fb−1^{-1}. Triple differential distributions as a function of the hadron longitudinal momentum fraction, hadron transverse momentum, and jet transverse momentum are also measured for the first time. This helps constrain transverse-momentum-dependent fragmentation functions. Differences in the shapes and magnitudes of the measured distributions for the different hadron species provide insights into the hadronization process for jets predominantly initiated by light quarks.Comment: All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-013.html (LHCb public pages
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