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Multiscale Characterization of Graphene/ITO Hybrid Electrodes for Solar Cells
No full textElectrodes play a crucial role in the efficiency, stability and overall performance of electronic and optoelectronic devices, particularly solar cells. Indium tin oxide (ITO) functions as a transparent conductive electrode in solar cells because it provides high conductivity together with high transparency. The performance of ITO-based devices suffers because of non-negligible sheet resistance and brittleness that cause deterioration mostly in flexibly designed or large-area applications. The exceptional electrical conductivity and mechanical strength with high transparency of graphene has made it a potential candidate as an electrode. The independent application of graphene fails to exhibit essential anti-reflectance characteristics; nevertheless, it brings exceptional conductivity when used to enhance traditional transparent conductive oxides like ITO by optimizing their properties alongside improved electrical performance. In this research, a monolayer graphene film, obtained by cold wall chemical vapour deposition (CVD) on copper substrate, was transferred on commercial ITO electrodes. Scanning electron microscopy (SEM) and Energy Dispersive X-ray analysis (microscale) provide evidence showing that the graphene layer uniformly coats ITO with no damage to its structure. Four-probe (macroscale) measurements show that the addition of a graphene layer to ITO can leads to a 23% increase in conductivity
L'inclusività nel rituale sportivo. Per una revisione dell’eredità durkheimiana nella sociologia dello sport
No full textThe Durkheimian legacy is mostly associated, within the sociology of sport, with the functionalist perspective and an exclusionary view of ritual as a marker of boundaries between in-group and out-group. After reconstructing how this exclusionary view of ritual characterises the main traditions of thought concerned with sport, the essay aims to overturn this reading and show how Durkheim offered an interpretation of ritual as a ludic-aesthetic practice with the potential to be inclusive. In the Conclusions, the relevance of Durkheim’s legacy and the continuity between sport and ritual in modern rationalized societies are discussed
Evolution of Secondary Metabolites in Eruca sativa from the Microgreen to the Reproductive Stage: An Integrative Multi-Platform Metabolomics Approach
No full textEruca sativa Mill. (rocket; Fam. Brassicaceae) is widely appreciated for its peculiar flavour and beneficial effects on human health. Glucosinolates (GSLs) and their enzymatic hydrolysis products, isothiocyanates (ITCs), are considered to be responsible for health-promoting effects and for sensory relevance in rocket, respectively. This study aimed at evaluating and comparing the metabolite profiles of rocket leaves collected at different phenological stages, to investigate the content evolution during cultivation. To minimise metabolic variability induced by environmental factors, plants were cultivated in an innovative growing system equipped with precision lighting and ventilation. A multi-platform metabolomics approach combining liquid chromatography-high-resolution mass spectrometry (LC-HRMS) and headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry (HS-SPME/GC-MS) was carried out for comprehensive coverage of non-volatile and volatile organic compounds (VOCs). To integrate data from both platforms, a multivariate data fusion strategy was used. Higher GSLs content was detected in the microgreens stage. In particular, glucoraphanin, glucoiberverin, glucoerucin, DMB-GLS, and 1,4-dimethoxyglucobrassicin were identified as biological markers of rocket microgreens. ITCs levels were found to increase in mature leaves. These findings suggest a dynamic modulation of secondary metabolism during the plant life cycle, possibly in response to different adaptation needs to environmental conditions. Our findings confirm the potential of microgreens as a functional food in promoting health and preventing chronic diseases and can also tailor rocket cultivation to maximise the production of beneficial metabolites and to improve selected sensorial features
Amalia Gräfin von Münster-Meinhövel, geb. von Ompteda (1767 – 1814): Poetische Versuche / Egeria. Mit einer Biographie der Dichterin herausgegeben von Mario Zanucchi
No full textOptimizing Textile Disinfection in Hospital-Associated Infections Using Gaseous Ozone
No full textHealthcare-associated infections (HAIs) pose a significant risk in clinical settings by extending hospitalization times and increasing healthcare costs. This study aimed to evaluate the effectiveness of gaseous ozone, generated by an automatic rotary dispenser, in disinfecting hospital fabrics contaminated with common HAI-related pathogens. The antimicrobial efficacy of ozone was tested on cotton, polyester, and blended fabrics artificially contaminated with Staphylococcus aureus, Escherichia coli, and Candida albicans. The fabrics were exposed to ozone treatment cycles of 25 and 45 min. Additional tests were conducted on layered fabrics to assess ozone penetration into folds and seams. A 25 min ozone exposure significantly reduced the microbial load on all tested fabrics. A 45 min cycle resulted in an almost complete elimination of the tested pathogens. Ozone also effectively disinfected inner fabric layers, indicating its ability to reach areas typically resistant to conventional cleaning methods. Gaseous ozone demonstrates high efficacy as a disinfectant for hospital textiles, offering thorough decontamination across various materials and fabric structures. This technology represents a sustainable, residue-free alternative to traditional disinfection methods and promises to reduce the transmission of HAIs in healthcare environments
FROM METEOROLOGICAL TO GROUNDWATER DROUGHT IN THE TANAGRO RIVER BASIN IN THE PERSPECTIVE OF CLIMATE CHANGE.
No full textLenguaje, género y visibilidad profesional: nomina agentis en el ámbito médico en España e Italia
No full textEn este artículo se examinan los nomina agentis en el ámbito médico, a partir del análisis de un corpus de currículos en línea de doctoras en España e Italia (Topdoctors). La elección de este tipo de texto se fundamenta en su relevancia para la construcción de la identidad profesional femenina en el espacio público. La frecuencia y la distribución de las formas masculinas y femeninas, así como los mecanismos de concordancia gramatical, evidencian una mayor aceptación de los términos femeninos en español en comparación con el italiano, incluso en el caso de una forma como médica, que parecía presentar cierta resistencia. En cambio, en italiano se observa una alternancia entre forma masculina y femenina, a menudo ambigua y agramatical, reflejo de una marcada resistencia al uso del léxico femenino, que acaba ratificando el prestigio social del masculino y su valoración pública para el marketing profesional
A modular augmented reality framework for real-time clinical data visualization and interaction
No full textEnhancing soil and plant biodiversity via marine waste-derived organic amendments
No full textIn Mediterranean climates, soils are degraded by anthropogenic activities that deplete organic matter, reduce biodiversity and impair ecosystem functioning. Ecological restoration through organic amendments may counteract these trends and recover degraded soils, preventing the loss of ecosystem services. Indeed, organic amendments improve soil chemico-physical properties and microbial biodiversity, promote natural revegetation and accelerate community successions. In this context, and aligned with circular economy principles, the preliminary results on the effects of a novel lumbricompost (derived from Posidonia oceanica litter + fish market residues) compared to traditional sewage sludge, applied with or without zeolites from limestone quarry waste, are reported. The study, part of the EMBRACE project (PRIN PNRR 2022), aims to assess the potential of these organic and inorganic matrices in improving industrial soil functioning. To this end, a field experiment was conducted on a quarry substrate with 5 treatments, each replicated in three plots: lumbricompost, sewage sludge, their respective zeolite-enriched variants, and an untreated control. After three months from the amendments, soils were characterized for several chemico-physical (water content, organic matter, pH, electrical conductivity and water-holding capacity) and biological properties (seed germination, natural revegetation, community-level physiological profiling as well as enzymatic activities targeting major nutrient cycles, such as hydrolase, β-glucosidase, β-1,4-N-acetylglucosaminidase, phosphatase and arylsulfatase). Results obtained so far (spring sampling) showed functional shifts in soil microbial community across treatments, with compost-enriched soils generally exhibiting enhanced biodiversity and metabolic activity. In particular, hydrolase and β-glucosidase activities significantly increased, indicating improved soil biochemical functioning because of the amendments. Organic matter addition promoted revegetation in treated as compared to untreated soils, leading to structural and functional changes in plant diversity depending on the amendment applied. In addition, treatments did
not elicit phytotoxic effects. Seasonal monitoring will further clarify the effectiveness of these sustainable strategies for restoring soils under climatic and anthropogenic pressures