showing 36 of ~574560 from 574555 documents
Development of processes, qualification, and de-risking for the Ariel primary mirror
2022
The work carried out in the Ph.D. program focused on developing the optics design of the Atmospheric Remote-Sensing Infrared Exoplanet Large Survey (Ariel) telescope, an optical/infrared mission of the European Space Agency (ESA), whose primary mirror is an off-axis paraboloid mirror measuring 1.2 · 0.7m. The novelty of the telescope is that both the mirrors and the telescope structure will be made of aluminium, and the primary mirror will be made of bare aluminium without a thick hard coating. The choice is mainly due to the thermo-mechanical properties of the material, and the usage of the same material for the whole structure will allow better heat exchange between the mirror and the opt…
Facial Emotion Recognition in Psychosis and Associations With Polygenic Risk for Schizophrenia
2022
The EU-GEI Project was funded by the European Community’s Seventh Framework Programme under grant agreement No. HEALTH-F2-2010-241909 (Project EU-GEI). The Brazilian study was funded by the Säo Paulo Research Foundation under grant number 2012/0417-0.
Betrug und Täuschung in der Literatur des späten 15. und des frühen 16. Jahrhunderts
2022
Heterogenizing palladium tetraiodide catalyst for carbonylation reactions
2022
We report the first example of successful heterogenization of the classical PdI42- carbonylation catalyst, achieved in two simple steps from ionic liquid-functionalized multi-walled carbon nanotubes (MWCNTs). The newly developed materials (PdI4@MWCNT-imi-X, X = Br, I) present the PdI42- anion supported on an imidazolium network (imi) grown on MWCNTs and have been fully characterized. The activity of PdI4@MWCNT-imi-X has been successfully tested in a paradigmatic carbonylation reaction, the oxidative monoaminocarbonylation of 1-alkynes with amines to give high value added 2-ynamides (obtained in good yields, 50–84%, starting from various substrates). The heterogeneous catalyst could be easil…
Simplified equivalent finite element modelling of concrete-filled steel tubular K-joints with and without studs
2022
Concrete Filled Steel Tubular (CFST) K-joints employed for truss structures gained high interest in the last years due to their widespread use in engineering practice. The overall performances of these joints can be efficiently improved by using steel studs welded in the inner surface of the steel chord filled with the concrete, avoiding punching shear failure, and improving the overall strength and ductility. However, a reliable prediction of the structural behavior of the joints is outmost of importance for the assessment of the capacity of new and existing structures, and there are no standardized design methods nowadays. In this paper, the structural performances of CFST K-joints with a…
Il travertino nella costruzione muraria ad Alcamo
2022
This study describes construction features typical of masonry buildings in the historic centre of Alcamo, Sicily. This local context is significant for the extent of the historic building stock and for the large use of travertine as traditional masonry material. The local availability of this rock is a peculiarity of Alcamo, in comparison with the rest of Sicily, and its use explains the originality of several construction details. The analysis exposed in this study is part of a wider research, aimed at developing a Sicilian database of mechanical and hygrothermal data for masonry tipologies. The historic tonewalls of Alcamo have been described by means of four masonry categories, whose mai…
Cigarette smoke promotes inflammasome‐independent activation of caspase‐1 and ‐4 leading to gasdermin D cleavage in human macrophages
2022
Mechanisms and consequences of gasdermin D (GSDMD) activation in cigarette smoke (CS)-associated inflammation and lung disease are unknown. GSDMD is a downstream effector of caspase-1, -8, and -4. Upon cleavage, GSDMD generates pores into cell membranes. Different degrees of GSDMD activation are associated with a range of physiological outputs ranging from cell hyperactivation to pyroptosis. We have previously reported that in human monocyte-derived macrophages CS extract (CSE) inhibits the NLRP3 inflammasome and shifts the response to lipopolysaccharide (LPS) towards the TLR4-TRIF axis leading to activation of caspase-8, which, in turn, activates caspase-1. In the present work, we investig…
Exploring the conceptual framework and measurement model of intrinsic capacity defined by the World Health Organization: A scoping review
2022
WHO has defined intrinsic capacity (IC) as the composite of all physical and mental capacities of an individual covering five subdomains: cognition, locomotion, sensory, vitality, and psychological. Despite this well accepted definition, the conceptual and measurement model of IC remains unclear, which hampers a standardized operationalization of the construct. We performed a scoping review to give a comprehensive overview of the extent to which the current literature of IC addresses and assumes the conceptual framework and measurement model of IC as reflective or formative. For inclusion, we considered all types of articles that were published in peer-reviewed journals except for protocol …
Frontiera geografica e frontiere mentali nella «Saga di Eirik il Rosso»
2022
La «Saga di Eirik il Rosso» («Eiríks saga rauða») appartiene al gruppo delle “Family Sagas” ("Íslendinga sögur") dell’antica letteratura islandese. Essa si configura come un testo di straordinario interesse storico e antropologico perché contiene una delle più antiche narrazioni della penetrazione dei Vichinghi, prima in Groenlandia e poi nel Nuovo Continente (la cosiddetta Vinlandia), circa 500 anni prima della “scoperta” dell’America da parte di Cristoforo Colombo. Ma è anche un testo ricco di suggestioni che afferiscono alle dimensioni del magico, del meraviglioso, dell’immaginario, e insieme un’opera nella quale la “frontiera” geografica si fonde e si confonde – nella redazione scritta …
Multidimensionalità del valore aziendale e valutazione dell’impatto sociale: nuove prospettive di indagine
2022
Nel presente volume viene trattato il tema del “valore” prodotto dalle aziende ponendo enfasi su come questo sia un concetto più ampio rispetto alla sua sola dimensione economico-finanziaria. Nella prima parte della trattazione esporremo come le aziende siano oggi chiamate a ricoprire un ruolo a elevato contenuto sociale, come ciò sia stato teorizzato e stia ottenendo sempre più ampio riconoscimento a livello nazionale e internazionale. Nella seconda parte introdurremo invece il tema della valutazione e rendicontazione degli impatti sociali. Nel fare ciò tratteremo il concetto di “impatto sociale” e la relazione tra sua rendicontazione e valutazione. Illustreremo, infine, una roadmap genera…
Apprendere come insegnare ai bambini a comporre testi sintetici e chiari
2022
Nella scuola primaria l’itinerario di conquista della capacità di comporre testi chiari, corretti e significativi, è spesso denso di difficoltà che finiscono con il rallentare le diverse acquisizioni dell’alunno; in mancanza di interventi tempestivi le problematiche si riversano negli ordini di scuola successivi. La scrittura è un processo costruttivo e dinamico che vede l’apprendista scrittore impegnato in un compito di risoluzione di problemi, con lo scopo di realizzare un testo che risulti comprensibile, semplice nella struttura e completo nel suo senso. Se adeguatamente stimolato, l’alunno impara a progettare il testo, a pianificare e organizzare le informazioni, a sintetizzare gli argo…
Coping in the role as next of kin of a person with a brain tumour: a qualitative metasynthesis
2022
ObjectiveBeing the next of kin of a person with a brain tumour is a stressful experience. For many, being a next of kin involves fear, insecurity and overwhelming responsibility. The purpose of this study was to identify and synthesise qualitative original studies that explore coping in the role as next of kin of a person with a brain tumour.MethodsA qualitative metasynthesis guided by Sandelowski and Barroso’s guidelines was used. The databases Medline, CHINAL and PsycINFO were searched for studies from January 2000 to 18 January 2022. Inclusion criteria were qualitative original studies that aimed to explore coping experience by the next of kin of a person with brain tumour. The next of k…
Ancient dental calculus preserves signatures of biofilm succession and interindividual variation independent of dental pathology
2022
AbstractDental calculus preserves oral microbes, enabling comparative studies of the oral microbiome and health through time. However, small sample sizes and limited dental health metadata have hindered health-focused investigations to date. Here we investigate the relationship between tobacco pipe smoking and dental calculus microbiomes. Dental calculus from 75 individuals from the 19th century Middenbeemster skeletal collection (Netherlands) were analyzed by metagenomics. Demographic and dental health parameters were systematically recorded, including the presence/number of pipe notches. Comparative data sets from European populations before and after the introduction of tobacco were also…
THE SCHOOL AT THE SERVICE OF THE SOCIETY: CONSEQUENCES FOR THE "NEW WORLD"
2022
Introduction In this article I shall seek to demonstrate the remarkable contemporary relevance of John Dewey’s pedagogic ideas, found in publications such as My Pedagogic Creed, The School and Society and Democracy and Education. Through a brief analysis of these works I will highlight how much Dewey believed in a school that is connected to society and which places itself at its service, contributing to the birth or consolidation of a democracy understood not just as a form of government, but as a way of life. In view of this analysis and in light of the present pandemic caused by COVID-19, I will consider the importance today of the school. Following Dewey, I will take into account the ro…
TRA ACQUA E TERRA, TRA CULTURA ALTA E RACCONTO POPOLARE: I NOMI DELLA TRILOGIA DELLE METAMORFOSI DI ANDREA CAMILLERI
2022
La dimensione onomastica della cosiddetta “Trilogia fantastica” di Andrea Camilleri è costituita da un misto di evocazioni mitologiche, di residui leggendari, di storie popolari raccontate alla fiamma serale, dove il reale incontra il favolistico. Maruzza Musumeci (2007), Il casellante (2008), Il sonaglio (2009), la raccolta di romanzi nota come «trilogia delle metamorfosi» per definizione dello stesso Camilleri, rappresenta una sorta di diversivo consapevole rispetto alle altre scelte di genere. Qui le scelte onomastiche si fanno voce di contesti narrativi in cui la storia e la cronaca trascendono verso memorie astratte e simboliche, vere perché nutrite di evocazioni poetiche. Donne-sirene…
Fenomenologie inquisitorie o guarentigie costituzionali nelle dinamiche dei poteri ex art. 409, 4° comma, c.p.p. del g.i.p. sull'inazione del p.m.?
2022
Le sezioni unite hanno riconosciuto in capo al g.i.p. il potere di ordinare al p.m. di procedere, quale atto di indagine suppletivo disposto a norma dell'art. 409, 4° comma, c.p.p., all'interrogatorio dell'indagato, anche per un reato diverso da quello per il quale il magistrato requirente aveva richiesto l'archiviazione, essendo dovuta, in tal caso, solo la previa iscrizione nel registro ex art. 335 c.p.p.
Printable Thermo- and Photo-stable Poly(D,L-lactide)/Carbon Nanodots Nanocomposites via Heterophase Melt-Extrusion Transesterification
2022
We propose for the first time an one-pot synthesis of carbon nanodots-poly(D,L-lactide) (CDs-PLA) nanocomposites, obtained by a simple reactive melt-extrusion process involving polar surface groups of multicolor CDs and ester bonds of PLA chains. Apart from providing an excellent method to produce polyester-coated CDs, our protocol allows obtaining perfect PLA@CDs blends giving rise to homogeneous extruded PLA@CDs filaments (ePLA@CDs) suitable for 3D printing applications (e.g., additive manufacturing for biomaterials and biodegradable encoded polymer ink technology). We demonstrate that ePLA@CDs filaments can be used to build a huge range of fluorescent objects with increasing architectura…
The predictive power of power-laws: An empirical time-arrow based investigation
2022
The efficient market hypothesis forbids any predictability towards future, but there is no such restriction in the case of reversed-looking approaches. We analyze if this asymmetry in non-predictability is reflected in the statistical features of financial time series. Our study is based on the analysis of the length-distribution of periods with high variability, and introduces time-asymmetric modifications of the method which are capable of revealing differences of the time series in forward and reversed time. We show that the future and reversed-looking time-series possess very similar properties, with some features being distinguishable with our method. Our findings give also evidence of…
Space of seclusion and life: the monastery of Santa Caterina d’Alessandria in Palermo between conservation, use, maintenance and enhancement
2022
Il complesso di Santa Caterina d’Alessandria di Palermo costituisce uno spazio abitato da più di 700 anni, come monastero di clausura femminile domenicano prima e oggi come spazio per la contemplazione della bellezza e della vita collettiva. Nel saggio si propone di istituire una squadra permanente per monitorare lo stato di conservazione del monumento e operare per la sua periodica e continua sua manutenzione. Solo così sarà possibile meglio conservare, fruire, valorizzare e vivere questo straordinario stratificato esempio di spiritualità, storia, architettura e cultura. The complex of Santa Caterina d'Alessandria in Palermo has been inhabited for more than 700 years, first as a Dominican …
GENETIC NEUROCHAPERONOPATHIES ASSOCIATED WITH CCT5 AND HSP60 VARIANTS: ANALYSIS OF THEIR MOLECULAR ANATOMY AND POSSIBLE PATHOGENIC IMPLICATIONS
2022
Generalized power-angle control for grid-forming converters: A structural analysis
2022
Several control schemes have been recently proposed and studied as grid-forming controls for power converters. In all these schemes, the power-angle control loop is the part which defines the fundamental capabilities of the grid-forming control: that control loop governs in fact the inherent synchronization mechanism of the power converter, the power sharing with the other generation sources in the system and the oscillatory characteristics of the converter-based resource. This article introduces a general formulation for the power-angle control characterizing the grid-forming concept for power converters. The generalized power-angle control is based on a polynomial fraction formulation, an…
Individual tactical effects of finishing at three mini-goals instead one regular goal during small sided games in youth soccer players.
2022
The aim of this investigation was to determine the effects of modifying the number and type of targets on the individual offensive behavior during small-sided games (SSGs) in youth soccer players. A total of 20 youth elite players (age: 13.9± 0.6 years; weight: 53.2±5.6 kg; height: 1.6±8.3) performed a training game in form of 5vs5 players + 1 floater (excluding goalkeepers) under two different formats: 1) finishing at one regular goal and goalkeeper (RG) and 2) finishing at three mini-goals without goalkeeper (3MG). The sample comprised 1056 individual possessions for which six technical tactical indicators were evaluated by means of observational methodology. Descriptive and comparative a…
Bioactive Phytochemicals from Grape Seed Oil-Processing By-Products
2022
Winemaking leads to by-products with high added value, which can be used for new productions in different fields. The reuse of grape seed is addressed in the production of oil and related oil-processing by-products. The main residue from seed oil processing is represented by grape seed flour. A focus on grapeseed oil and health by literature quantitative research analysis is presented. Chemical composition, bioactive compounds, and biological and functional properties ofgrape seed oil and oil-processing by-products are described, and databases containing data and information on grape seed by-products are highlighted. Due to their contents of nutrients and bioactive molecules, grape seed oil…
Novel green bio-composite geopolymeric thermo-plasters for innovative building applications: upcycling spent coffee ground
2022
This study proposes the reuse of spent coffee ground and biomass fly ash in the development of green geopolymeric thermo-plastering for innovative building applications. The former waste is the major residue of the brewing process, that is usually used as fertilisers or disposed of in landfill with extreme harmfulness for the natural environment. The latter is an industrial waste generated during the Kraft paper-pulp process, that is usually landfilled. The mortar is produced with a combination of metakaolin (30 wt.%) and biomass fly ash (70 wt.%), and natural siliceous sand filled with spent coffee ground (up to 17.5 wt.%). The high amount of reused waste makes the material an optimum cand…
La Natura come soggetto di diritto: l'approccio ecuadoriano
2022
All legal systems by now must confront the issue of environmental protection. The scope of this paper is to analyse the Ecuadorian approach, considering that it is the only legal system which, so far, has constitutionalized the rights of Nature, thus allowing a change in the status of Nature, from object to subject of law, overcoming the traditional approach of Western environmental law. The paper also aims to show how the theme of the rights of Nature offers a valuable opportunity for intercultural dialogue, and how the Ecuadorian experience represents, in this sense, a perfect mix between Western legal notions, such as damage, protection, or representation, and the ancestral knowledge of …
Non-volatile memory characteristics of a Ti/HfO2/Pt synaptic device with a crossbar array structure
2022
The resistive switching and synaptic behavior of a fabricated Ti/HfO2/Pt crossbar array device are investigated. The results demonstrated that TiOx layers are created by the movement of oxygen ions during the positive SET process, thereby improving the endurance and multilevel switching behavior of the device. The random properties of SET process were described with the help of stochastic model of memristor based on the length of conductive filament. The analysis of the mean first passage time allows estimating the parameters of the dielectric switching layer such as the activation energy of the diffusive defects, its variation under the influence of the driving voltage and the value of the…
Use of xanthan gum as edible coating to prolong shelf life of cactus pear fruit
2022
The objective of this work was to elucidate the effect of xanthan gum-based edible coating C35H49O29 on the quality of cactus pear fruit (Opuntia ficus-indica). The research was conducted in 2018, on O. ficus-indica ‘Bianca’ fruit, coming from second bloom “scozzolatura”. After harvest, 100 fruits were coated with a xantan gum (XAN) and distilled water and on other 100 fruits were immersed in distilled water (CTR). All fruits were stored at 6±0.5°C with RH 90% for 30 days. Every 7 days, visual quality browning index score, flesh colour, total soluble solids (TSS), total acidity (TA), ascorbic acid and total phenols were measured. During cold storage, fruit treated with XAN (p<0.05) showe…
Analytical Modeling of the Temperature Sensitivity of the Maximum Power Point of Solar Cells
2022
Author's accepted manuscript Abstract—This article presents new analytical expressions for the temperature coefficients of the voltage, current, and power of a solar cell at its maximum power point MPP). A new analytical expression of the temperature coefficient of the fill factor is also derived. The new expressions are written as functions of photovoltaic (PV) metrics that can be obtained from i-V measurements. Nonideal diode behavior is partially accounted for through a temperature dependent ideality factor. The recombination parameter γ, which has been shown to account for the thermal sensitivity of all mechanisms determining the open-circuit voltage, appears to play a role also for the…
A simple method for the photometric characterization of organic light-emitting diodes
2022
A simple method for the photometric characterization of organic light-emitting diodes (OLEDs) is reported. It is based on the indirect measurement of the total emitted optical power by using a calibrated photodiode and the optical emission spectrum and space emission diagram of the OLED. From this and by measuring the current–voltage characteristic of the OLED all the relevant radiometric and photometric quantities can be extracted, including the external quantum efficiency. The usual method to collect all photons emitted by a LED source in the half space uses an integrating sphere with the LED source placed at the entrance hole and a photodiode (PD) placed at an exit hole at some point on …
An overview of the microbiological characteristics of the wooden shelves used in cheese ripening
2022
Cheese ripening is a complex phenomenon affected by several factors. Among these, the influence of the wooden shelves used for aging traditional cheeses is underrated. The surfaces of the wooden boards are in contact with cheese rind for the entire ripening period and develop a microbial community. The aims of this review article is to provide an overview on the microbiological approaches applied to study the biofilms associated to the wooden tools used for dairy productions and to summarize the studies specifically performed on the wooden shelves used to ripen traditional cheeses. A critical discussion is focused on the hygienic aspects and the safety of these systems applied in cheese pro…
Las independencias iberoamericanas a debate: reflexiones sobre revoluciones y liberalismos en la década de 1820
2022
The Ibero-American independences have provoked important historiographi- cal debates that have shown the impor- tance of the revolutionary transforma- tions that took place between the end of the 18th century and the beginning of the 19th century. The idea is to show that, in the 1820s, the revolutionary ele- ments of nineteenth-century liberalism that formed the independent republics were implemented in almost all the Ibe- ro-American territories. Thus, I am based on the concept of revolution to de- fine the processes of independence in Ibero-America, highlighting that this oc- curred from the assumptions of liberal- ism. In this way, this reflection allows us to broaden our perspective an…
Seasonal characterization of nutritional, technological and antioxidant properties of Opuntia ficus-indica Mill. mucilage
2022
Opuntia ficus-indica Mill. fruit and cladodes are a source of mucilage, a carbohydrate complex, as well as of phytochemicals and other nutrients, useful in the food industry. Despite the environmental-based composition variability studied, there is no information on its seasonal variability, which is particularly important for its industrial use. In this study, some technological, nutritional, and bioactive properties of O. ficus-indica Mill. cladodes mucilage were analysed during the seasonal growth period. Total proteins did not change during the whole period and the lipid content significantly decreased from winter to the onset of summer. The fatty acid profile showed high levels of palm…
Flipped Language teaching. Lingua, comunicazione, apprendimento
2022
The volume intends to offer a contribution to language teaching research starting from the issues related to the teaching / learning of foreign languages at school. From an examination of the cultural and regulatory context of reference, from the need to find a correspondence between the linguistic objectives defined by national policies and the European recommendations in the field of language education, from the definition of the concept of 'linguistic competence' as outlined by the CEFR, an operational proposal is articulated focused on the methodology of Flipped teaching aimed at promoting the use and transmission of the LS, through precise lines of language teaching planning. All the…
GREEN ENERGY HARVESTING FROM CONCENTRATED SALTWORKS BITTERNS BY REVERSE ELECTRODIALYSIS
2022
Concentrated bitterns discharged from saltworks have extremely high salinity, often up to 300 g/L, thus their direct disposal not only can have harmful effect on the environment, but also generates a depletion of a potential resource of renewable energy. Here, reverse electrodialysis (RED), an emerging electrochemical membrane process, is introduced to capture the salinity gradient power (SGP) intrinsically conveyed by these bitterns also aiming at the reduction of concentrated salty water disposal. A RED unit at the laboratory scale has been adopted to study the SGP potential with different ion exchange membrane and different operating conditions. In particular, membranes supplied by Fujif…
L’ordine del discorso autoriale. Immagini, pratiche, estetiche tra politica e biografia
2022
The paper aims to investigate the possibilities for the concept of “political author” as an effect of discourse to survive in contemporary cinema by analysing the case of Italian biopics of the new Millennium. After a proposal of definition of a political authoriality, the analyses of the films attempt to show how the articula- tion of such an authoriality in three different figures – the director, the actor, and the real model – and in subcategories defines a specific feature of biographical cinema, to eventually conclude with some remarks about the posthumous life of the authorial discourse after the “death of the author”, between politics and commitment.
University students’ career resources and the associations with perceived career control and decisional self-efficacy
2022
In recent years, to better face university paths, the first approaches to the labor market, and then the actual transition, university students are asked to have broader skills, such as the ability to network, the involve- ment in career-related issues, and the ability to explore the characteristics of occupations as much as per- sonal ones. The aim of this study is to confirm the psychometric properties of the Italian translation of the Career Resources Questionnaire (Hirschi et al., 2018) and the relationships between its components and two outcomes, students’ perceived career control and decisional self-efficacy, among 311 university students. The results highlight differences in perceiv…