Il contributo del welfare aziendale territoriale alla co-progettazione delle politiche sociali locali

Il welfare aziendale territoriale (WAT) è un fenomeno in espansione che costituisce, per gli attori coinvolti, l’evoluzione del welfare aziendale in una strategia di risposta al diversificarsi dei bisogni della popolazione e all’acuirsi delle situazioni di vulnerabilità sociale, alle quali le logiche del welfare tradizionale non riescono più a far fronte (Arletti 2018; Busacca e Masiero 2019; Maino e Razetti 2019). Nel tentativo di superare la crisi del sistema di welfare, e nell’ottica della creazione di valore sociale, il WAT si sostanzia in reti multiattore e multistakeholder sempre più complesse e articolate, di dimensione locale e composte da soggetti pubblici e privati che co-finanziano, co-producono e co-gestiscono interventi sociali “con l’obiettivo di dar vita a un’offerta capace di integrare, in maniera coerente e più inclusiva, quella pubblica” (Maino 2021b, 219). In queste esperienze si affronta la questione, centrale nel welfare attuale, attinente all’innovazione del welfare a partire dalla trasformazione della natura e della consistenza delle relazioni tra il mondo produttivo, il welfare statale, lo sviluppo socioeconomico e occupazionale. Questa riflessione coinvolge tutti i livelli dello Stato, ma in particolare il livello locale, dando vita a soluzioni in cui il welfare (e il WAT in particolare) è inteso come fattore di crescita, di fioritura e di valorizzazione della comunità (Scansani 2015; Zamagni 2015; Zandonai 2021; Zandonai Venturi 2019). Nell’esperienza italiana, il WAT nasce e si sviluppa quando le aziende iniziano a riflettere sul contributo del loro modello di welfare aziendale allo sviluppo economico e sociale locale e, contestualmente, i decisori politici, a tutti i livelli, sperimentano le prime forme di partnership con i soggetti del privato, alla ricerca di finanziamenti e strategie operative comuni per sostenere il progresso sociale ed economico delle comunità

Il tirocinio tecnico-pratico nei corsi di studio in igiene dentale. II parte: standard del tirocinio e dell’insegnamento

Il Gruppo di lavoro della Commissione Nazionale dei Corsi di Studio in Igiene Dentale ha elaborato un documento di consensus con indicazioni volte a uniformare gli standard del tirocinio tecnico-pratico presso i Corsi di Studio in Igiene Dentale sul territorio nazionale

Il tirocinio tecnico-pratico nei Corsi di Studio in Igiene Dentale. I parte: obiettivi

Il Gruppo di lavoro della Commissione Nazionale dei Corsi di Studio in Igiene Dentale ha elaborato un documento di consensus con indicazioni volte a uniformare gli standard del tirocinio tecnico-pratico presso i Corsi di Studio in Igiene Dentale sul territorio nazionale

Due 'paradossi meccanici' della Collezione Storica degli Strumenti di Fisica dell'Universit\`a di Palermo

Many instruments of the Historical Collection of the Physics Instruments of the University of Palermo date back to the early nineteenth century, when experimental Physics begun to be taught in university studies by using instruments and apparatuses in the classroom to illustrate the laws of Physics. Among the various instruments belonging to the Collection, there are also the so-called 'paradoxes', instruments with surprising properties that do not seem to follow the laws of Physics. In this article we analyze two 'mechanical paradoxes' of the Collection and discuss their possible educational use.Comment: 11 Pages, in Italian, 9 Figures. Accepted for publication in Quaderni di Ricerca in Didattica (Science), special Issue in Italian languag

Insights into the Structure of Dot@Rod and Dot@Octapod CdSe@CdS Heterostructures

CdSe@CdS dot@rods with diameter around 6 nm and length of either 20, 27, or 30 nm and dot@octapods with pod diameters of ?15 nm and lengths of ?50 nm were investigated by X-ray absorption spectroscopy. These heterostructures are prepared by seed-mediated routes, where the structure, composition, and morphology of the CdSe nanocrystals used as a seed play key roles in directing the growth of the second semiconducting domain. The local structural environment of all the elements in the CdSe@CdS heterostructures was investigated at the Cd, S, and Se K-edges by taking advantage of the selectivity of X-ray absorption spectroscopy, and was compared to pure reference compounds. We found that the structural features of dot@rods are independent of the size of the rods. These structures can be described as made of a CdSe dot and a CdS rod, both in the wurtzite phase with a high crystallinity of both the core and the rod. This result supports the effectiveness of high temperature colloidal synthesis in promoting the formation of core@shell nanocrystals with very low defectivity. On the other hand, data on the CdSe@CdS with octapod morphology suggest the occurrence of a core composed of a CdSe cubic sphalerite phase with eight pods made of CdS wurtzite phase. Our findings are compared to current models proposed for the design of functional heterostructures with controlled nanoarchitecture

Design of Dual-Emitting Nonaromatic Fluorescent Polymers through Thermal Processing of l-Glutamic Acid and l-Lysine

Fluorescence emission of proteins containing aromatic groups and conjugated bonds is generally associated with light absorption in the ultraviolet range, around 185-320 nm. Photoluminescence in nonaromatic biopolymers, however, has also been observed in amyloid-like structures and polymers derived from l-lysine and glycine. Here, we show, for the first time, that branched polymers obtained through thermal copolymerization of two nonaromatic amino acids, l-lysine and l-glutamic acid, exhibit two-color centers with relative absorptions in the visible range. Thermal homopolymerization of l-lysine or l-glutamic acid gives rise to the formation of branched polyglutamic acid and polylysine with a single fluorescence emission peaking at around 450 nm. The coreaction of the two amino acids produces instead a branched peptide-like polymer with a new emission centered at around 380 nm. The structures of the copolymers were studied by differential scanning calorimetry, in situ temperature-resolved FTIR, NMR, and TEM spectroscopy techniques. The optical properties were investigated by UV-vis and fluorescence spectroscopy. The double emission can be correlated with two different intramolecular charge transfer processes between the polymer backbone and the oppositely charged moieties of the two precursor side chains, Lys and Glu, which are at the origin of near-UV fluorescence

Carbon Nanodots from an In Silico Perspective

Carbon nanodots (CNDs) are the latest and most shining rising stars among photoluminescent (PL) nanomaterials. These carbon-based surface-passivated nanostructures compete with other related PL materials, including traditional semiconductor quantum dots and organic dyes, with a long list of benefits and emerging applications. Advantages of CNDs include tunable inherent optical properties and high photostability, rich possibilities for surface functionalization and doping, dispersibility, low toxicity, and viable synthesis (top-down and bottom-up) from organic materials. CNDs can be applied to biomedicine including imaging and sensing, drug-delivery, photodynamic therapy, photocatalysis but also to energy harvesting in solar cells and as LEDs. More applications are reported continuously, making this already a research field of its own. Understanding of the properties of CNDs requires one to go to the levels of electrons, atoms, molecules, and nanostructures at different scales using modern molecular modeling and to correlate it tightly with experiments. This review highlights different in silico techniques and studies, from quantum chemistry to the mesoscale, with particular reference to carbon nanodots, carbonaceous nanoparticles whose structural and photophysical properties are not fully elucidated. The role of experimental investigation is also presented. Hereby, we hope to encourage the reader to investigate CNDs and to apply virtual chemistry to obtain further insights needed to customize these amazing systems for novel prospective applications

Selecting molecular or surface centers in carbon dots-silica hybrids to tune the optical emission: A photo-physics study down to the atomistic level

In this work, we unveil the fluorescence features of citric acid and urea-based Carbon Dots (CDs) through a photo-physical characterization of nanoparticles synthesized, under solvent-free and open-air condi-tions, within silica-ordered mesoporous silica, as a potential host for solid-state emitting hybrids. Compared to CDs synthesized without silica matrices and dispersed in water, silica-CD hybrids display a broader emission in the green range whose contribution can be increased by UV and blue laser irradi-ation. The analysis of hybrids synthesized within different silica (MCM-48 and SBA-15) calls for an active role of the matrix in directing the synthesis toward the formation of CDs with a larger content of graphitic N and imidic groups at the expense of N-pyridinic molecules. As a result, CDs tuned in size and with a larger green emission are obtained in the hybrids and are retained once extracted from the silica matrix and dispersed in water. The kinetics of the photo-physics under UV and blue irradiation of hybrid samples show a photo-assisted formation process leading to a further increase of the relative contribution of the green emission, not observed in the water-dispersed reference samples, suggesting that the porous matrix is involved also in the photo-activated process. Finally, we carried out DFT and TD-DFT calcula-tions on the interaction of silica with selected models of CD emitting centers, like surface functional groups (OH and COOH), dopants (graphitic N), and citric acid-based molecules. The combined experimen-tal and theoretical results clearly indicate the presence of molecular species and surface centers both emitting in the blue and green spectral range, whose relative contribution is tuned by the interaction with the surrounding media

Direct oral Xa inhibitors versus warfarin in patients with cancer and atrial fibrillation: a meta-analysis

Patients with cancer are at higher risk of atrial fibrillation, thromboembolic complications and bleeding events compared with the general population. The aim of the present meta-analysis was to compare the efficacy and safety of direct oral Xa inhibitor anticoagulants versus warfarin in patients with cancer and atrial fibrillation

Non-invasive Coronary Flow Velocity Reserve Assessment Predicts Adverse Outcome In Women With unstable angina Without Obstructive Coronary Artery Stenosis

Background: Evaluation of coronary flow velocity reserve (CFVR) is the physiological approach to assess the severity of coronary stenosis and microvascular dysfunction. Impaired CFVR occurs frequently in women with suspected or known coronary artery disease . The aim of this study was to assess the role of CFVR to predict long-term cardiovascular event rate in women with unstable angina (UA) without obstructive coronary artery stenosis. Methods: CFVR in left anterior descending coronary artery was assessed by adenosine transthoracic echocardiograhy in 161 women admitted at our Department with UA and without obstructive coronary artery disease. Results: During a mean FU of 32.5 ±19.6 months, 53 cardiac events occurred: 6 nonfatal acute myocardial infarction , 22 UA, 7 coronary revascularization by percutaneous transluminal coronary angioplasty, 1 coronary bypass surgery, 3 ischemic stroke and 8 episodes of congestive heart failure with preserved ejection fraction and 6 cardiac deaths. Using a ROC curve analysis, CFVR 2.14 was the best predictor of cardiac events and was considered as abnormal CFVR. Abnormal CFVR was associated with lower cardiac event-free survival (30% vs 80%, p<0.0001). During FU, 70% of women with reduced CFVR had cardiac events whereas only 20% with normal CFVR (p=0.0001). At multivariate Cox analysis, smoke habitus (p=0.003), metabolic syndrome (p=0.01), and CFVR (p<0.0001) were significantly associated with cardiac events at FU. Conclusion: Noninvasive CFVR provides an independent predictor of cardiovascular prognosis information in women with UA without obstructive coronary artery disease whereas, impaired CFVR seems to be associated with higher CV events at FU