Per un’analisi socio-spaziale del territorio. Un’introduzione

Il volume nasce nell’ambito di un insegnamento di Sociologia urbana all’interno del quale era stata prevista un’attività seminariale che intendeva rispondere ad un’esigenza didattica prioritaria: mostrare agli studenti la poliedricità di studi e ricerche che si collocavano nell’ambito della disciplina e al contempo evidenziarne la comune opzione euristica, andando oltre la prima impressione di un cumularsi magmatico di filoni di ricerca. Coinvolgendo giovani ricercatori, l’attività seminariale non intendeva pertanto focalizzarsi su uno specifico oggetto di ricerca, da approfondire nei diversi incontri previsti, ma richiamare l’attenzione sulla valenza esplicativa della dimensione territoriale nella comprensione di una molteplicità di fenomeni sociali anche laddove questa non era immediatamente evidente e spesso non adeguatamente riconosciuta. Si trattava, per gli studenti coinvolti, di cogliere il filo rosso che univa i diversi contributi presentati nel seminario e ora pubblicati in questo volume. Oltre a testimoniare la pluralità e ricchezza degli studi territoriali, le ricerche illustrate nel volume hanno il pregio e il merito di concentrarsi sugli aspetti spaziali e territoriali delle diverse forme sociali studiate cogliendone la dimensione materiale contribuendo al contempo ad una spazializzazione della teoria sociologica. In questa lettura il territorio non emerge come mero sfondo e contenitore di un insieme di processi sociali ma come socialmente strutturato dalle forze in campo e al contempo strutturante le stesse. Nello spazio non si proietta semplicemente la vita sociale che su di esso si appoggia, ma esso stesso è “fattore attivo”

Endoscopic-assisted canal wall-up tympanomastoidectomy for reduction of residual cholesteatoma

Introduction The treatment of cholesteatoma is generally surgical, and the major obstacle is the high prevalence of recidivism. The endoscopic ear surgery technique is proposed to minimize this problem. Objectives To utilize endoscopes to visualize andmanipulate cholesteatoma residues after microscopic removal Methods Cross-sectional study. Thirty-two patients with cholesteatoma underwent microscopic wall-up mastoidectomy combined with the endoscopic approach. The subjects were assessed for the presence and location of covert disease. Results Of the 32 cases, 17 (53.12%) had residual cholesteatoma in the endoscopic phase.Minimal disease was found, usually fragments of the cholesteatomamatrix. Pars tensa cholesteatomas had more covert disease than pars flaccida cholesteatomas (62.50% vs 43.75%). Posterior recesses (47.05%) and tegmen tympani (41.17%) were the locations with more covert disease (p<0.05). Conclusion Cholesteatomas of the pars tensa presented more residual disease and were significantly more common in the posterior recesses and tegmen tympani

Esplorare il territorio. Linee di ricerca socio-spaziali

Il volume nasce nell’ambito di un insegnamento di Sociologia urbana all’interno del quale era stata prevista un’attività seminariale che intendeva rispondere a un’esigenza didattica prioritaria: mostrare agli studenti la poliedricità di studi e ricerche che si collocavano nell’ambito della disciplina e al contempo evidenziarne la comune opzione euristica, andando oltre la prima impressione di un cumularsi magmatico di filoni di ricerca. Coinvolgendo giovani ricercatori, l’attività seminariale intendeva richiamare l’attenzione sulla valenza esplicativa della dimensione territoriale nella comprensione di una molteplicità di fenomeni sociali anche laddove questa non era immediatamente evidente e spesso non adeguatamente riconosciuta. Si trattava, per gli studenti coinvolti, di cogliere il filo rosso che univa i diversi contributi esposti nel seminario, pubblicati in questo volume. Le ricerche presentate hanno il pregio e il merito di concentrarsi sugli aspetti spaziali e territoriali delle diverse forme sociali studiate, cogliendone la dimensione materiale e contribuendo inoltre a una spazializzazione della teoria sociologica. Il territorio non emerge come mero sfondo e contenitore di un insieme di processi sociali ma come socialmente strutturato dalle forze in campo e strutturante le stesse. Nello spazio non si proietta semplicemente la vita sociale che su di esso si appoggia, ma esso stesso è “fattore attivo”

Visualising biological data: a semantic approach to tool and database integration

<p>Abstract</p> <p>Motivation</p> <p>In the biological sciences, the need to analyse vast amounts of information has become commonplace. Such large-scale analyses often involve drawing together data from a variety of different databases, held remotely on the internet or locally on in-house servers. Supporting these tasks are <it>ad hoc </it>collections of data-manipulation tools, scripting languages and visualisation software, which are often combined in arcane ways to create cumbersome systems that have been customised for a particular purpose, and are consequently not readily adaptable to other uses. For many day-to-day bioinformatics tasks, the sizes of current databases, and the scale of the analyses necessary, now demand increasing levels of automation; nevertheless, the unique experience and intuition of human researchers is still required to interpret the end results in any meaningful biological way. Putting humans in the loop requires tools to support real-time interaction with these vast and complex data-sets. Numerous tools do exist for this purpose, but many do not have optimal interfaces, most are effectively isolated from other tools and databases owing to incompatible data formats, and many have limited real-time performance when applied to realistically large data-sets: much of the user's cognitive capacity is therefore focused on controlling the software and manipulating esoteric file formats rather than on performing the research.</p> <p>Methods</p> <p>To confront these issues, harnessing expertise in human-computer interaction (HCI), high-performance rendering and distributed systems, and guided by bioinformaticians and end-user biologists, we are building reusable software components that, together, create a toolkit that is both architecturally sound from a computing point of view, and addresses both user and developer requirements. Key to the system's usability is its direct exploitation of semantics, which, crucially, gives individual components knowledge of their own functionality and allows them to interoperate seamlessly, removing many of the existing barriers and bottlenecks from standard bioinformatics tasks.</p> <p>Results</p> <p>The toolkit, named Utopia, is freely available from <url>http://utopia.cs.man.ac.uk/</url>.</p

Artistas sobre outras obras

Refletindo sobre a arte enfenta-se coisa difícil, e não raro temos de encarar o regresso à partida: é coisa antiga, ligação funda ao que diferencia o humano, assentando na arbitrariedade da sua cultura e na sua transmissão sígnica. A pergunta, na busca dos grandes signos, é quase simples: o que há de novo? Poderia dizer-se que a esta pergunta respondem, cada um a seu modo, os 16 artistas, agora autores, desafiados pela convocatória desta revista: no Estúdio se faz a Estúdio.info:eu-repo/semantics/publishedVersio

Complement lectin pathway activation is associated with COVID-19 disease severity, independent of MBL2 genotype subgroups

IntroductionWhile complement is a contributor to disease severity in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections, all three complement pathways might be activated by the virus. Lectin pathway activation occurs through different pattern recognition molecules, including mannan binding lectin (MBL), a protein shown to interact with SARS-CoV-2 proteins. However, the exact role of lectin pathway activation and its key pattern recognition molecule MBL in COVID-19 is still not fully understood.MethodsWe therefore investigated activation of the lectin pathway in two independent cohorts of SARS-CoV-2 infected patients, while also analysing MBL protein levels and potential effects of the six major single nucleotide polymorphisms (SNPs) found in the MBL2 gene on COVID-19 severity and outcome.ResultsWe show that the lectin pathway is activated in acute COVID-19, indicated by the correlation between complement activation product levels of the MASP-1/C1-INH complex (p=0.0011) and C4d (p&lt;0.0001) and COVID-19 severity. Despite this, genetic variations in MBL2 are not associated with susceptibility to SARS-CoV-2 infection or disease outcomes such as mortality and the development of Long COVID.ConclusionIn conclusion, activation of the MBL-LP only plays a minor role in COVID-19 pathogenesis, since no clinically meaningful, consistent associations with disease outcomes were noted

Age-related immune response heterogeneity to SARS-CoV-2 vaccine BNT162b2

Abstract: Although two-dose mRNA vaccination provides excellent protection against SARS-CoV-2, there is little information about vaccine efficacy against variants of concern (VOC) in individuals above eighty years of age1. Here we analysed immune responses following vaccination with the BNT162b2 mRNA vaccine2 in elderly participants and younger healthcare workers. Serum neutralization and levels of binding IgG or IgA after the first vaccine dose were lower in older individuals, with a marked drop in participants over eighty years old. Sera from participants above eighty showed lower neutralization potency against the B.1.1.7 (Alpha), B.1.351 (Beta) and P.1. (Gamma) VOC than against the wild-type virus and were more likely to lack any neutralization against VOC following the first dose. However, following the second dose, neutralization against VOC was detectable regardless of age. The frequency of SARS-CoV-2 spike-specific memory B cells was higher in elderly responders (whose serum showed neutralization activity) than in non-responders after the first dose. Elderly participants showed a clear reduction in somatic hypermutation of class-switched cells. The production of interferon-γ and interleukin-2 by SARS-CoV-2 spike-specific T cells was lower in older participants, and both cytokines were secreted primarily by CD4 T cells. We conclude that the elderly are a high-risk population and that specific measures to boost vaccine responses in this population are warranted, particularly where variants of concern are circulating

Single-cell multi-omics analysis of the immune response in COVID-19

Funder: Lister Institute of Preventive Medicine; doi: https://doi.org/10.13039/501100001255Funder: University College London, Birkbeck MRC Doctoral Training ProgrammeFunder: The Jikei University School of MedicineFunder: Action Medical Research (GN2779)Funder: NIHR Clinical Lectureship (CL-2017-01-004)Funder: NIHR (ACF-2018-01-004) and the BMA FoundationFunder: Chan Zuckerberg Initiative (grant 2017-174169) and from Wellcome (WT211276/Z/18/Z and Sanger core grant WT206194)Funder: UKRI Innovation/Rutherford Fund Fellowship allocated by the MRC and the UK Regenerative Medicine Platform (MR/5005579/1 to M.Z.N.). M.Z.N. and K.B.M. have been funded by the Rosetrees Trust (M944)Funder: Barbour FoundationFunder: ERC Consolidator and EU MRG-Grammar awardsFunder: Versus Arthritis Cure Challenge Research Grant (21777), and an NIHR Research Professorship (RP-2017-08-ST2-002)Funder: European Molecular Biology Laboratory (EMBL)Abstract: Analysis of human blood immune cells provides insights into the coordinated response to viral infections such as severe acute respiratory syndrome coronavirus 2, which causes coronavirus disease 2019 (COVID-19). We performed single-cell transcriptome, surface proteome and T and B lymphocyte antigen receptor analyses of over 780,000 peripheral blood mononuclear cells from a cross-sectional cohort of 130 patients with varying severities of COVID-19. We identified expansion of nonclassical monocytes expressing complement transcripts (CD16+C1QA/B/C+) that sequester platelets and were predicted to replenish the alveolar macrophage pool in COVID-19. Early, uncommitted CD34+ hematopoietic stem/progenitor cells were primed toward megakaryopoiesis, accompanied by expanded megakaryocyte-committed progenitors and increased platelet activation. Clonally expanded CD8+ T cells and an increased ratio of CD8+ effector T cells to effector memory T cells characterized severe disease, while circulating follicular helper T cells accompanied mild disease. We observed a relative loss of IgA2 in symptomatic disease despite an overall expansion of plasmablasts and plasma cells. Our study highlights the coordinated immune response that contributes to COVID-19 pathogenesis and reveals discrete cellular components that can be targeted for therapy

Protective intraoperative ventilation with higher versus lower levels of positive end-expiratory pressure in obese patients (PROBESE): study protocol for a randomized controlled trial

Background: Postoperative pulmonary complications (PPCs) increase the morbidity and mortality of surgery in obese patients. High levels of positive end-expiratory pressure (PEEP) with lung recruitment maneuvers may improve intraoperative respiratory function, but they can also compromise hemodynamics, and the effects on PPCs are uncertain. We hypothesized that intraoperative mechanical ventilation using high PEEP with periodic recruitment maneuvers, as compared with low PEEP without recruitment maneuvers, prevents PPCs in obese patients. Methods/design The PRotective Ventilation with Higher versus Lower PEEP during General Anesthesia for Surgery in OBESE Patients (PROBESE) study is a multicenter, two-arm, international randomized controlled trial. In total, 2013 obese patients with body mass index ≥35 kg/m2 scheduled for at least 2 h of surgery under general anesthesia and at intermediate to high risk for PPCs will be included. Patients are ventilated intraoperatively with a low tidal volume of 7 ml/kg (predicted body weight) and randomly assigned to PEEP of 12 cmH2O with lung recruitment maneuvers (high PEEP) or PEEP of 4 cmH2O without recruitment maneuvers (low PEEP). The occurrence of PPCs will be recorded as collapsed composite of single adverse pulmonary events and represents the primary endpoint. Discussion To our knowledge, the PROBESE trial is the first multicenter, international randomized controlled trial to compare the effects of two different levels of intraoperative PEEP during protective low tidal volume ventilation on PPCs in obese patients. The results of the PROBESE trial will support anesthesiologists in their decision to choose a certain PEEP level during general anesthesia for surgery in obese patients in an attempt to prevent PPCs. Trial registration ClinicalTrials.gov identifier: NCT02148692. Registered on 23 May 2014; last updated 7 June 2016. Electronic supplementary material The online version of this article (doi:10.1186/s13063-017-1929-0) contains supplementary material, which is available to authorized users

Where are adolescents with cutaneous melanoma treated? An Italian Nation wide study on referrals based on hospital discharge records.

We analyzed the nationwide hospital discharge records of adolescent inpatients in Italy to map where adolescents with melanoma are treated and identify expert centers. We identified 137 hospitals pointing out a dispersion of these patients that must be addressed to ensure to all adolescents with melanoma adequate treatment and enrolment in clinical studies