Nowadays the necessity to reveal the hidden information from complex data sets is increasing due to the development of high-throughput instrumentation. The possibility to jointly analyze data sets ...arising from different sources (e.g. different analytical determinations/platforms) allows capturing the latent information that would not be extracted by the individual analysis of each block of data. Several approaches are proposed in the literature and are generally referred to as data fusion approaches. In this work a mid level data fusion is proposed for the characterization of three varieties (Salamino di Santa Croce, Grasparossa di Castelvetro, Sorbara) of Lambrusco wine, a typical PDO wine of the district of Modena (Italy). Wine samples of the three different varieties were analyzed by means of 1H-NMR spectroscopy, Emission-Excitation Fluorescence Spectroscopy and HPLC-DAD of the phenolic compounds.
Since the analytical outputs are characterized by different dimensionalities (matrix and tensor), several multivariate analyses were applied (PCA, PARAFAC, MCR-ALS) in order to extract and merge, in a hierarchical way, the information present in each data set.
The results showed that this approach was able to well characterize Lambrusco samples giving also the possibility to understand the correlation between the sources of information arising from the three analytical techniques.
•MidLevel data fusion simultaneously allows interpretation of data of different nature.•Data fusion provides better results for the classification of Lambrusco PDO wines.•Sample characterization is enhanced using different sources of information.•Multi-way, multiset and bilinear methods were used to extract informative features.
The present study is aimed at evaluating the possibility to predict bread specifications, for an industrial bread-making process, on the basis of the properties of flour employed in production. The ...flour delivered at the production plant, of which rheological and chemical properties were available, were analysed by means of Near Infrared Spectroscopy (NIRS). Based on the flour properties and NIR signals, multivariate control charts were constructed in order to detect flour batches leading to a bread with non-optimal behaviour. The results show that it is possible to distinguish flour batches leading to a product with a particularly negative performance, by modelling the properties commonly measured on flours and the acquired Near Infrared signals. In spite of the absence of monitoring of process variables, which could have offered a more sound basis for the interpretation, especially when false positives and negatives are detected, these results are of particular interest from the point of view of raw material evaluation in process monitoring. Also, the potentiality of Near Infrared Spectroscopy allows considering this approach for an on-line implementation in the control of incoming raw materials in this industrial process.
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Agarose gel (agargel) composites with commercial and laboratory made silver nanoparticles were prepared by a wet solution method at room temperature. The gel composites were used for pigment ...extraction and detection by Raman spectroscopy. Red (alizarin) and violet (crystal violet) pigments deposited on paper were extracted by the composites and were investigated by micro-Raman spectroscopy. Evaluation was carried out of the surface-enhanced Raman spectroscopy (SERS) effect induced by the silver nanoparticles embedded in the gel. A kinetic approach as a function of time was used to determine the efficiency of pigments extraction by composites deposition. A non-invasive extraction process of few minutes is demonstrated. This process induces active SERS for both used pigments. The reported results show the full exploitability of agargel silver nanoparticle composites for the extraction of pigments from paper based artworks.
The arterial vascular supply of maxillary sinus has to be considered in all the surgical procedures where it is involved. In particular, the intraosseous anastomosis between the posterior superior ...alveolar artery and the infraorbital artery branches in the bony canal can be tricky to a not well aware clinician. The aim of this study is to investigate the arterial blood supply of the maxillary sinus to give clinicians the basis for a better understanding of vascular complications that can derive from surgical procedures at this level.
One hundred cone beam computed tomography were analysed by the Imaging software for three-dimensional images, i-Dixel 2.0. The parameters considered have been the presence (i), the calibre (ii), the dorso-ventral length (iii) and the cranio-caudal distance (iv). The data have been processed with means, standard deviations and verified by T-Student test.
The statistical outputs showed that the 38% of samples presented the intraosseous anastomosis. Those anastomosis resulted long in dorso-ventral way both on left (12.55 ± 4.3 mm) and right side (12.4 ± 4.3 mm). The mean cranio- -caudal distance resulted 15.71 ± 5.08 mm on the left and 14.73 ± 4.74 mm on right side. The calibre measurements resulted quite big as well: 1.68 ± 0.3 mm on the left and 1.54 ± 0.38 mm on the right. The differences between the right and left sides were found not statistically significant.
This in vivo investigation shows how a knowledge of the maxillary sinus vascularisation is essential during the programming surgical phase in order to prevent blood complications during the operations involving this region. (.
Abstract Introduction Heart failure (HF) is a significant global health problem, affecting over 64,000 people annually and resulting in high mortality rates (Savarese et al., 2023). However, for ...those receiving follow–up care, there is a 20% increase in 5–year survival (Braunwald, 2013). Globally, heart failure affects 1–3% of the population in developed countries, with 15 million patients in Europe and a 2% prevalence in Italy, accompanied by a 20% mortality rate (Heidenreich et al., 2022). Patients with heart failure often experience a reduction in quality of life (QoL), impacting their psychosocial well–being (Lupón, 2013). Indeed, those with lower QoL tend to experience more adverse events, such as rehospitalization and mortality (Ly et al., 2023). Therefore, it becomes crucial to assess QoL over time, utilizing new technologies for home monitoring. Continuous evaluation of QoL and the use of home monitoring technologies, such as telemedicine and telemonitoring, are essential and can have a positive impact on promoting QoL (Morken et al., 2022). OBJECTIVE: Investigate the perceived quality of life in geriatric patients with heart failure, describing the impact of the condition on QoL. Materials and Methods This mixed–methods study aims to explore QoL perception in a cohort of real–life outpatient geriatric patients with HF based on different stages of the disease. The study consists of two phases: a quantitative survey and a qualitative investigation. The KCCQ 23 scale was used to quantitatively assess self–reported QoL during in–person follow–up appointments and subsequently through phone follow–ups at 6 and/or 12 months. Additionally, the qualitative phase involved conducting semi–structured interviews via video calls. Results, Discussion and Conclusions The study involved 478 patients with heart failure, with women, who were underrepresented, reporting lower QoL than men. Analysis of interviews and subsequent triangulation of quantitative and qualitative data revealed that the QoL of HF patients is influenced by six identified themes: future perspectives, self–care, social interactions, emotional state, functional status, awareness of the disease, and awareness of one‘s health status. Furthermore, it was observed that deceased patients who received follow–up care reported significantly worse QoL scores compared to those who did not receive follow–up.
► We investigate the microwave surface resistance of melt-textured YBCO samples. ► The samples are boron doped and irradiated by thermal neutrons. ► The main aim is to study of the effect of B2O3 ...addition on the fluxon dynamics. ► The results are discussed taking into account the d-wave nature of HTS. ► We found that the depinning frequency increases on increasing the B2O3 addition.
We report on the microwave surface resistance of melt-textured Y1.6Ba2.3Cu3.3O7−x samples, doped with different amount of B2O3 and, subsequently, irradiated by thermal neutrons at the fluence of 1.476×1017cm−2. The microwave surface resistance has been measured as a function of temperature and DC magnetic field. The experimental results are quantitatively discussed in the framework of the Coffey and Clem theory, properly adapted to take into account the d-wave nature of cuprate superconductors. By fitting the experimental data at zero DC field, we have highlighted the effects of the induced defects in the general properties of the samples, including the intergranular region. The analysis of the results obtained at high DC fields allowed us to investigate the fluxon dynamics and deduce the depinning frequency; in particular, we show that the addition of B2O3 up to 0.1wt.% increases the effectiveness of the defects to hinder the fluxon motion induced by the microwave current.
The magnetic-field-induced variations of the microwave surface resistance have been investigated in a heavily neutron-irradiated MgB2 sample, in which the irradiation has caused the merging of the ...two gaps into a single value. The experimental results have been analyzed in the framework of the Coffey and Clem model. By fitting the experimental data, we have determined the field dependence of the depinning frequency, ω0, at different values of the temperature. Although the pinning is not particularly effective, the value of ω0 obtained at low temperatures is considerably higher than that observed in conventional low-temperature superconductors.
We discuss the microwave energy losses in superconductors in the critical state. The field-induced variations of the surface resistance are determined, in the framework of the Coffey and Clem model, ...by taking into account the distribution of the vortex magnetic field inside the sample. It is shown that the effects of the critical state cannot generally be disregarded to account for the experimental data. Results obtained in bulk niobium at low temperatures are quantitatively justified.
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