| 1. |
- Abelev, Betty, et al.
(författare)
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Long-range angular correlations on the near and away side in p-Pb collisions at root S-NN=5.02 TeV
- 2013
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Ingår i: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics. - : Elsevier BV. - 0370-2693. ; 719:1-3, s. 29-41
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Tidskriftsartikel (refereegranskat)abstract
- Angular correlations between charged trigger and associated particles are measured by the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV for transverse momentum ranges within 0.5 < P-T,P-assoc < P-T,P-trig < 4 GeV/c. The correlations are measured over two units of pseudorapidity and full azimuthal angle in different intervals of event multiplicity, and expressed as associated yield per trigger particle. Two long-range ridge-like structures, one on the near side and one on the away side, are observed when the per-trigger yield obtained in low-multiplicity events is subtracted from the one in high-multiplicity events. The excess on the near-side is qualitatively similar to that recently reported by the CMS Collaboration, while the excess on the away-side is reported for the first time. The two-ridge structure projected onto azimuthal angle is quantified with the second and third Fourier coefficients as well as by near-side and away-side yields and widths. The yields on the near side and on the away side are equal within the uncertainties for all studied event multiplicity and p(T) bins, and the widths show no significant evolution with event multiplicity or p(T). These findings suggest that the near-side ridge is accompanied by an essentially identical away-side ridge. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.
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| 2. |
- Abelev, Betty, et al.
(författare)
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Measurement of prompt J/psi and beauty hadron production cross sections at mid-rapidity in pp collisions at root s=7 TeV
- 2012
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Ingår i: Journal of High Energy Physics. - 1029-8479. ; :11
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Tidskriftsartikel (refereegranskat)abstract
- The ALICE experiment at the LHC has studied J/psi production at mid-rapidity in pp collisions at root s = 7 TeV through its electron pair decay on a data sample corresponding to an integrated luminosity L-int = 5.6 nb(-1). The fraction of J/psi from the decay of long-lived beauty hadrons was determined for J/psi candidates with transverse momentum p(t) > 1,3 GeV/c and rapidity vertical bar y vertical bar < 0.9. The cross section for prompt J/psi mesons, i.e. directly produced J/psi and prompt decays of heavier charmonium states such as the psi(2S) and chi(c) resonances, is sigma(prompt J/psi) (p(t) > 1.3 GeV/c, vertical bar y vertical bar < 0.9) = 8.3 +/- 0.8(stat.) +/- 1.1 (syst.)(-1.4)(+1.5) (syst. pol.) mu b. The cross section for the production of b-hadrons decaying to J/psi with p(t) > 1.3 GeV/c and vertical bar y vertical bar < 0.9 is a sigma(J/psi <- hB) (p(t) > 1.3 GeV/c, vertical bar y vertical bar < 0.9) = 1.46 +/- 0.38 (stat.)(-0.32)(+0.26) (syst.) mu b. The results are compared to QCD model predictions. The shape of the p(t) and y distributions of b-quarks predicted by perturbative QCD model calculations are used to extrapolate the measured cross section to derive the b (b) over bar pair total cross section and d sigma/dy at mid-rapidity.
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| 3. |
- Abelev, Betty, et al.
(författare)
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Underlying Event measurements in pp collisions at root s=0.9 and 7 TeV with the ALICE experiment at the LHC
- 2012
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Ingår i: Journal of High Energy Physics. - 1029-8479. ; :7
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Tidskriftsartikel (refereegranskat)abstract
- We present measurements of Underlying Event observables in pp collisions at root s = 0 : 9 and 7 TeV. The analysis is performed as a function of the highest charged-particle transverse momentum p(T),L-T in the event. Different regions are defined with respect to the azimuthal direction of the leading (highest transverse momentum) track: Toward, Transverse and Away. The Toward and Away regions collect the fragmentation products of the hardest partonic interaction. The Transverse region is expected to be most sensitive to the Underlying Event activity. The study is performed with charged particles above three different p(T) thresholds: 0.15, 0.5 and 1.0 GeV/c. In the Transverse region we observe an increase in the multiplicity of a factor 2-3 between the lower and higher collision energies, depending on the track p(T) threshold considered. Data are compared to PYTHIA 6.4, PYTHIA 8.1 and PHOJET. On average, all models considered underestimate the multiplicity and summed p(T) in the Transverse region by about 10-30%.
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| 4. |
- Bellini, Elena, et al.
(författare)
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Sensory Design in the Birth Environment: Learning from Existing Case Studies
- 2023
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Ingår i: Buildings. - : MDPI AG. - 2075-5309. ; 13:3
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Tidskriftsartikel (refereegranskat)abstract
- Studies have shown how built environments for hospitals can influence psychological and physiological conditions and status for childbearing women. Sensory attributes of birth spaces can enhance comfort, feelings of wellbeing, and, to some extent, clinical outcomes. Recently, some case studies of multisensory rooms for the birth environment have been developed based on, e.g., Snoezelen room examples. The aim of this research is to develop an overview of how sensory aspects for birth environments are designed, used, and tested in current and recent studies. Case studies were selected according to sensory aspect significance, observing space factors, and relationship with the experience and comfort of users (women, partners, midwives). All case studies were analysed to collect information about the design and validation process. The collected data were organised in categories and compared for the selected case studies. Main findings were summarised in tables with the aim of underlining how sensory design processes and projects can positively influence comfort for birthing. Conclusions about how to bring forward the issue of sensory design so that it can be used and applied to support childbearing women is discussed.
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| 5. |
- Bellini, Tommaso, et al.
(författare)
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Clinical Course, Laboratory Findings, and Prognosis of SARS-CoV-2 Infection in Infants up to 90 Days of Age: A Single-Center Experience and a Proposal for a Management Pathway
- 2024
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Ingår i: Healthcare. - 2227-9032. ; 12:5, s. 1-14
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Tidskriftsartikel (refereegranskat)abstract
- Aim: To provide a comprehensive description of the clinical features, biochemical characteristics, and outcomes of infants up to 90 days old with COVID-19. Moreover, to assess the severity of the disease and propose an effective management pathway. Methods: Retrospective single-center study spanning three years. Patient data includes age, sex, symptoms, comorbidities, blood and urine test results, cultures, admission, length of stay, therapies, intensive care unit admission, and mortality. Results: A total of 274 patients were enrolled in the study, comprising 55% males. Among them, 60 patients (22%) were under the age of 29 days, while 214 (78%) fell within the 29 to 90 days age range. The overall incidence of SARS-CoV-2 infections was 0.28 per 10,000 Pediatric Emergency Department admissions. Blood inflammatory markers showed no significant abnormalities, and there were no recorded instances of positive blood cultures. Less than 1% of infants showed urinary tract infections with positive urine cultures, and 1.5% of patients had a concurrent RSV infection. Hospitalization rates were 83% for neonates and 67% for infants, with a median length of stay (LOS) of 48 h for both age groups. None of the patients required admission to the Pediatric or Neonatal Intensive Care Unit, and only one required High Flow Nasal Cannula (HFNC). No secondary serious bacterial infections were observed, and all hospitalized patients were discharged without short-term sequelae. No deaths were reported. Discussion and Conclusions: Infants with COVID-19 generally exhibit milder or asymptomatic forms of the disease, making home management a viable option in most cases. Blood tests, indicative of a mild inflammatory response, are recommended primarily for children showing symptoms of illness. Hospitalization precautions for infants without apparent illness or comorbidities are deemed unnecessary. Given the evolving nature of experiences with COVID-19 in infants, maintaining a high level of clinical suspicion remains imperative.
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| 6. |
- Setola, Nicoletta, et al.
(författare)
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Interdisciplinary approach to evaluate environmental users’ perceived restoration in hospital public spaces.
- 2019
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Ingår i: ARCH19 – Proceedings from the 4th Conference on Architecture Research Care & Health. - 9788253617183
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Konferensbidrag (refereegranskat)abstract
- Objective – The study aims to: 1) assess the relationship between the quality of hospital's public spaces expressed in terms of accessibility and visibility of art and greenery and users' restorative experiences; 2) highlight how physical environment may promote health and wellbeing of patients and staff/user. Background – The issue of public spaces in hospitals is very debated today: the direction taken by a few decades is to implement these spaces giving them a humanization feature to promote the well-being of patients and staff. Architectural trends have developed around the creation of halls, mostly glazed, with more volumes appearing, and large dimensions. The importance of restorative spaces as a mediator factor for health outcomes among the users is increasingly recognized. Research questions – 1) Which public spaces are perceived to be more restorative? 2) Does familiarity with a place affect the users’ perception of restoration in hospital public spaces? 3) To what extent does the perception of restoration vary across settings that support similar functions but present varying levels of art and greenery? 4) How does the combined use of Technical Environmental Analysis (TEA) and Observed Based Environmental Assessments (OBEA) measures support our understanding of perceived restoration across different public spaces in hospital settings? Methods – A cross-sectional investigation was performed in seven public spaces of the Santa Maria Nuova Hospital (IT) by adopting TEA and OBEA tools. Technical Environmental Analysis: • Visits on site to evaluate the quality of the space, to assess the presence of artworks and/or greenery and to describe the historicity of the space • Spatial analysis: Space Syntax evaluation parameters (Hillier, 2007) to evaluate the integration of the space (e.g., visibility, accessibility) and to quantify the presence of artworks and green view (% isovist area from key points), performed by Visibility Graph Analysis (VGA) and Isovist Analysis. Observed Based Environmental Assessments: • This type of assessments implies an evaluation of public spaces done by the users (n = 327) (i.e., outpatient, staff, relative, volunteer and social services). Their recruitment was done in place. • Adapted version of the Perceived Restoration Scale (PRS) (1-5 Likert scale). Results – Overall the results seem to suggest that the public spaces had relatively high restorative qualities. However, significant higher perceived restoration was also found for the Medicherie cloister, suggesting that some architectural and natural features affected the result. In order to gain a better understanding of what aspects of the physical environment of hospital public spaces might have had an impact on users’ perception of restoration TEA and OBEA, data were merged together and their interaction was discussed. Conclusion – New insights about the concept of restoration and its interaction with physical characteristics of hospital’s public spaces is put forward. Furthermore, the methodology proposed by linking TEA and OBEA data contributes to a more reliable understanding of the influence that existing buildings might have on users’ well-being.
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