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Evidence of superfluidity in a dipolar supersolid
No full textThe elusive supersolid, an exotic quantum phase that combines the properties of a crystalline solid and those of a superfluid, has been recently discovered in a system of Bose-condensed strongly magnetic atoms. In this paper, I report on an experiment that directly demonstrates the superfluid behavior of the dipolar supersolid measuring its anomalous response to a rotational excitation. I complement the illustration of the experimental results with a review and an original interpretation of a seminal model due to Leggett
Tailoring superparamagnetic nanoparticles for entrapment into red blood cells
No full textThe aim of the work here described is the synthesis of magnetic nanoparticles (MNPs) for the inclusion into human Red Blood Cells (RBCs) and as potential contrast agent for magnetic resonance imaging (MRI). Synthesis, characterization and preliminary in vitro tests are the main topics. Superparamagnetic iron oxide nanoparticles and manganese/zinc ferrite nanoparticles have been synthesized, by using wet-chemistry techniques such as co-precipitation and thermal decomposition methods. For biomedical application, a suitable surface coating must be grafted to MNPs surface, to preserve the colloidal stability even in physiological condition. Therefore, a biomimetic coating based on non-modified dextran was
grafted to MNPs for ensuring optimal stability and low toxicity for the inclusion in living RBCs
Textile sensor for chloride monitoring in sweat
No full textSmart textile represents a novel and extremely fast-growing area in the well-established wearable sensors field. The possibility to integrate sensing and monitoring features to standard garments as shirts or bands using exclusively
textile substrate is capturing a lot of attention. This article presents a good example of a compact, cost-effective, and comfortable textile thread sensor that can
monitor the chloride concentration in human sweat for healthcare and sports applications. The single-thread sensor is based on conductive polymers poly(3,4-ethylene
dioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS) and nano-composite material (silver-silver chloride nanoparticles) deposited on a common cotton thread, and
easily scalable for large-scale production. The sensitivity, selectivity, electrolyte volume independent performances, and reliability are evaluated in artificial human sweat showing the chance to achieve a point-of-care sweat analysis for a large textile multi-sensing platform
Students’ understanding of Universe birth and evolution
No full textA coherent picture of high school students conceptual understanding of cosmology is yet to be provided. To this aim, we conducted a survey on a convenience sample of 432 Italian high school students. The students responses to
an open-ended questionnaire were analysed with a non-hierarchical cluster analysis, using SPSS K-means algorithm. In this study we could identify patterns amongst students beliefs and ideas. Our preliminary findings may guide the design of meaningful and more effective teaching activities to improve students understanding of this content are
Teaching asymmetry in physics and art
No full textHigh school physics textbooks often turn their attention to mathematical and physical aspects that highlight elements of symmetry in physical phenomena and laws, skipping the key role that asymmetry has had in recent and past physics discoveries. The contribution aims to highlight how the couples beauty = symmetry and symmetry = creativity are not always well matched. The didactic path was realized in the school years 2018–2019 and 2019–2020 with a group of 64
students
GERDA final results on neutrinoless double beta decay search
No full textThe GErmanium Detector Array (Gerda) experiment searched at Laboratori Nazionali del Gran Sasso of INFN for neutrinoless double beta (0νββ) decay of the 76Ge isotope. The experiment has used 44 kg of bare high-purity germanium detectors, acting simultaneously as source and detector, deployed into ultra-pure liquid argon. The last Gerda results lead the 0νββ decay field, reporting the highest sensitivity on the half-life of 0νββ decay, 1.8×1026 yr, and the lowest background index at the Q-value of the decay, of 5.2×10−4 cts/(keV·kg·yr). These achievements are the result of the careful selection of highly radiopure materials and of efficient background suppression techniques. The experimental setup, the active background reduction techniques and the final results of Gerda will be summarized
The DarkSide-20k neutron veto
No full textDarkSide-20k is a background-free experiment under construction at INFN, Laboratori Nazionali del Gran Sasso. It aims to directly detect Dark Matter particles exploiting WIMP-nucleon scattering in liquid argon. In order to identify neutron interactions, a gadolinium-doped veto was developed, which takes advantage of liquid argon scintillation. Studying the optimal placement of the photodetectors in the veto, the non-uniformity of the light collection was simulated to be 3% at 1σ
L’impact de la loi-cadre espagnole contre la violence de genre sur un groupe professionnel : le cas de la médiation familiale
Get PDFIl presente articolo analizza le modalità attraverso le quali l’interdizione formale della mediazione familiare in caso di violenza di genere in Spagna è stata recepita e messa in pratica da alcuni operatori che lavorano in ambito socio-giuridico quando si occupano di situazioni caratterizzate da rotture di legami familiari. L’applicazione di una legge dipende in gran parte dall’interpretazione effettuata da parte di coloro che devono metterla in pratica. L’autrice esaminerà la maniera in cui tali operatori (avvocati, giudici, psicologici, mediatori familiari) attribuiscono senso alla legge, rispettandola o rifiutandola. A partire da un’indagine qualitativa effettuata tramite interviste semi-strutturate rivole a 18 operatori socio-giuridici, l’autrice intende mostrare come questi professionisti definiscono in maniera diversa, e talvolta divergente, la violenza di genere, i limiti della mediazione e, infine, come essi conferiscono senso ad una legge di ispirazione femministra in una società patriarcale formalmente egualitaria.
Cet article présente comment l’interdiction formelle de la médiation familiale en cas de violence de genre en Espagne a été reçue et pratiquée par certains professionnel·le·s socio-juridiques travaillant sur les ruptures familiales. La mise en œuvre d’une loi dépend en grande partie de l’interprétation qui est faite par ceux et celles qui sont censé·e·s l’appliquer. Nous verrons la manière dont des professionnel·le·s (avocat·te·s, juges, psychologues, médiateurs et médiatrices familiales) font sens de la loi, y adhérent ou la rejettent. À partir d’une enquête qualitative par entretiens semi-dirigés avec 18 opérateurs sociojuridiques, je montre comment les professionnel·le·s définissent de manière diverse et parfois divergente la violence de genre, les limites de la médiation et in fine, comment elles et ils font sens de d’une loi d’inspiration féministe dans une société patriarcale formellement égalitaire.
This paper presents how the formal prohibition of family mediation in cases of gender violence in Spain has been received and practised by some social and legal professionals working on family ruptures. The implementation of a law depends, to a large extent, on the way it is interpreted by those who are supposed to apply it. We will see how professionals (lawyers, judges, psychologists and family mediators) make sense of this law, adhere to it or reject it. Based on a qualitative survey composed of 18 semi-structured interviews with socio-legal operators, I show how professionals define gender violence in different and at times opposite ways, the limits of the mediation process and, finally, how they (the professionals) make sense of a feminist-inspired law within a patriarchal formally egalitarian society
Incontro di partenariato CLUSTER -Economia del Mare - Progetti ITEM TEOREMA a coordinamento DIITET
No full textPresentazione delle regole del bando MIUR D.D. 1610/2016 e del D.M. 593/2016, nell'ambito del workshop effettuato in occasione dell'incontro di partenariato dei progetti ITEM e TEOREMA a coordinamento DIITET
D-dimer and C-reactive Protein Blood Levels Over Time Used to Predict Pulmonary Embolism in Two COVID-19 Patients
Get PDFThe diagnosis of pulmonary embolism is challenging in symptomatic COVID-19 patients since shortness of breath, chest pain, tachycardia, tachypnoea, fever, oxygen desaturation and high D-dimer blood levels might be features of both diseases. We present two COVID-19 patients in whom pulmonary embolism was suspected (and diagnosed) due to a discrepancy between an increase in D-dimer blood levels and a decrease in C-reactive protein blood levels over time. We believe that an opposite change in the blood levels of both biomarkers over time may be used as a novel method to predict pulmonary embolism in COVID-19 patients