showing 36 of ~574560 from 574555 documents
Petrographic characterization of quartzite tools from the Palaeolithic site of San Teodoro cave (Sicily): Study on the provenance of lithic raw mater…
2022
A petrographic characterization has been used here, for the first time, in the study of lithic raw materials exploited in prehistoric Sicily. Our research interests one of the oldest archaeological sites with evidence of the early human peopling of the island (∼15kyr ago): San Teodoro Cave, in northeastern Sicily. Two geological Formations, Numidian and Monte Soro Flysch gave origin to well-rounded pebbly quartzite elements scattered in the marine terraces surrounding the cave and likely exploited as one of the sources of the raw materials for the production of lithic tools by the Epigravettian communities having settled the place. The preference for one of the two qualities of quartzite is…
Social information use by predators : expanding the information ecology of prey defences
2022
Social information use is well documented across the animal kingdom, but how it influences ecological and evolutionary processes is only just beginning to be investigated. Here we evaluate how social transmission may influence species interactions and potentially change or create novel selection pressures by focusing on predator-prey interactions, one of the best studied examples of species coevolution. There is extensive research into how prey can use social information to avoid predators, but little synthesis of how social transmission among predators can influence the outcome of different stages of predation. Here we review evidence that predators use social information during 1) encount…
Finding the right balance in oxygen delivery after resuscitation
2022
Global impact of the COVID-19 pandemic on subarachnoid haemorrhage hospitalisations, aneurysm treatment and in-hospital mortality: 1-year follow-up.
2022
BackgroundPrior studies indicated a decrease in the incidences of aneurysmal subarachnoid haemorrhage (aSAH) during the early stages of the COVID-19 pandemic. We evaluated differences in the incidence, severity of aSAH presentation, and ruptured aneurysm treatment modality during the first year of the COVID-19 pandemic compared with the preceding year.MethodsWe conducted a cross-sectional study including 49 countries and 187 centres. We recorded volumes for COVID-19 hospitalisations, aSAH hospitalisations, Hunt-Hess grade, coiling, clipping and aSAH in-hospital mortality. Diagnoses were identified by International Classification of Diseases, 10th Revision, codes or stroke databases from Jan…
Visual-auditory substitution device for indoor navigation based on fast visual marker detection
2022
Introducing the DYNAMICS framework of moment-to-moment development in achievement motivation
2022
This article introduces a new theoretical and psychometric framework describing moment-to-moment development and inter-dependencies of achievement motivation in terms of the situated expectancy-value theory, by introducing dynamical systems concepts into this line of research. As a first empirical example of a study using this framework, we examined whether task values, costs, and success expectancies measured in a learning situation (time point t) predicted themselves and each other at the next situation (t + 1; 27 min later) within a weekly university lecture. Situational task values, expectancies, and costs were assessed using the experience sampling method in 155 university teacher trai…
The production of western Greek amphorae in Agrigento (Southern Sicily): An archaeometric and archaeological characterisation of the late 6th-4th cen…
2022
This paper aims at an interdisciplinary, archaeological and archaeometric characterisation of the western Greek amphorae series produced in late Archaic and Classical-period Agrigento (southern Sicily). The research is based on a macroscopic examination, according to the standardised methods of Fabrics of the Central Mediterranean (FACEM), combined with petrographic analyses of 21 amphorae samples of presumed local fabric found in Agrigento itself. These were found in the artisanal area outside Porta V, in the excavations South of the temple of Zeus, and in several Sicilian consumption sites. Furthermore, a selection of 12 coarse ware samples and three tiles, all of supposed local manufactu…
Guidelines of the Italian societies of gastroenterology on the diagnosis and management of coeliac disease and dermatitis herpetiformis
2022
Introduction: Coeliac disease and dermatitis herpetiformis are immune-mediated diseases triggered by the consumption of gluten in genetically predisposed individuals. These guidelines were developed to provide general practitioners, paediatricians, gastroenterologists, and other clinicians with an overview on the diagnosis, management and follow-up of coeliac patients and those with dermatitis herpetiformis.Methods: Guidelines were developed by the Italian Societies of Gastroenterology. Following a systematic literature review, the Grading of Recommendations Assessment, Development and Evaluation methodol-ogy was used to assess the certainty of the evidence. Statements and recommendations w…
Measurement of the absolute branching fraction of the singly Cabibbo suppressed decay Λc+ →pη′
2022
Physical review / D 106(7), 072002 (2022). doi:10.1103/PhysRevD.106.072002
Behavioral and Socio-Emotional Disorders in Intellectual Giftedness: A Systematic Review
2022
AbstractThis work systematically reviewed past literature to investigate the association between intellectual giftedness and socio-emotional and/or behavioral disorders. Nineteen studies met the inclusion criteria, 17 of which have children and/or adolescents as participants, and 12 have a non-gifted control group. Socio-emotional problems, such as withdrawal, were found in 3 out of 8 studies; internalizing disorders, such as anxiety, were found in 5 out of 9; externalizing disorders, such as hyperactivity, were found in 3 out of 5. The most investigated comorbidity was attention-deficit/hyperactivity disorder. A univocal conclusion on the relationship between intellectual giftedness and so…
Identifying territories using presence-only citizen science data : An application to the Finnish wolf population
2022
Citizens, community groups and local institutions participate in voluntary biological monitoring of population status and trends by providing species data e.g. for regulations and conservation. Sophisticated statistical methods are required to unlock the potential of such data in the assessment of wildlife populations. We develop a statistical modelling framework for identifying territories based on presence-only citizen science data. The framework can be used to jointly estimate the number of active animal territories and their locations in time. Our approach is based on a data generating model which consists of a dynamic submodel for the appearance/removal of territories and an observatio…
La disciplina giuridica delle piattaforme online per la ristorazione
2022
The paper investigates the legal issues concerning online platform for restaurants. A coherent regulatory framework of these platforms is proposed, considering the P2B and B2C relationships involved in their activities, with a focus on the protection of food choices and personal data entered by users. While for the P2B issues the European legislation lay down by Reg. EU n. 1150/2019 and the previous Dir. 2000/31/EC on electronic commerce is involved; the B2C issues are discussed considering the regulation on unfair commercial practices provided by Dir. n. 2005/29/EC and, specifically, Reg. EU n. 1169/2011 on food information. As regards the privacy issues of the platform customers, the GDPR…
Covid-19 in Philadelphia-negative myeloproliferative neoplasms: a GIMEMA survey on incidence, clinical management and vaccine
2022
Sounding the Middle Ages : A Cinematic Chronotope
2022
Abstract This article explores the strategies used in movies to recreate the sound of the Middle Ages. The musical elements that our culture chooses for identifying the past and their reasons for those choices are an interesting point to start this investigation. Bakhtin's notion of “chronotope” is useful for discovering the musical signs of “medievalness”; indeed, the sources for authenticity are not the “historical” sources but the musical paradigm defined before the Second World War.
Conventional MRI-Derived Biomarkers of Adult-Type Diffuse Glioma Molecular Subtypes: A Comprehensive Review.
2022
The introduction of molecular criteria into the classification of diffuse gliomas has added interesting practical implications to glioma management. This has created a new clinical need for correlating imaging characteristics with glioma genotypes, also known as radiogenomics or imaging genomics. Although many studies have primarily focused on the use of advanced magnetic resonance imaging (MRI) techniques for radiogenomics purposes, conventional MRI sequences remain the reference point in the study and characterization of brain tumors. A summary of the conventional imaging features of glioma molecular subtypes should be useful as a tool for daily diagnostic brain tumor management. Hence, t…
Norm-inflation results for purely BBM-type Boussinesq systems
2022
This article is concerned with the norm-inflation phenomena associated with a periodic initial-value abcd-Benjamin-Bona-Mahony type Boussinesq system. We show that the initial-value problem is ill-posed in the periodic Sobolev spaces H−sp (0, 2π)×H−sp (0, 2π) for all s > 0. Our proof is constructive, in the sense that we provide smooth initial data that generates solutions arbitrarily large in H−sp (0, 2π) × H−sp (0, 2π)-norm for arbitrarily short time. This result is sharp since in [15] the well-posedness is proved to holding for all positive periodic Sobolev indexes of the form Hsp (0, 2π) × Hsp (0, 2π), including s = 0. peerReviewed
Small fish in big ponds : Connections of green finance assets to commodity and sectoral stock markets
2022
We analyze return and volatility connectedness of the rising green asset and the well-established US industry stock and commodity markets from September 2010 to July 2021. We find that the time-varying return and volatility connectedness have exhibited serious crisis jumps. Some individual assets of both the green and commodity markets are in connection to the US sectoral stock market returns, and the volatility connections are even more common than the return connections. Furthermore, some financial and economic uncertainty indicators manifest positive impacts from the volatility of some `big pond markets for e.g. commodities, whereas some others affect the connectedness negatively. Additi…
How pedagogical agents communicate with students: A two-phase systematic review
2022
Technological advancements have improved the capabilities of pedagogical agents to communicate with students. However, an increased use of pedagogical agents in learning environments calls for a deeper understanding of student–agent communication to assess the effectiveness of pedagogical agents in learning. This study is a two-phase systematic review of scientific papers on pedagogical agent communication research published between 2010 and 2020, including review papers and original research papers. In the first phase, this study analyses literature reviews and meta-analyses to find the status and research gaps. The findings indicate that pedagogical agents' characteristics and impact on l…
Transient Electrical Behaviour of the TF Superconducting Coils of Divertor Tokamak Test Facility During a Fast Discharge
2022
The paper is focused on the electromagnetic analysis of the Toroidal Field (TF) superconducting coils of the Divertor Tokamak Test facility (DTT) when electrical transients occur in the TF coils system: for example, during the operations of the Fast Discharge Units (FDUs) and considering also, the simultaneous occurrence of a fault condition. During the FDU intervention, a transient voltage excitation lasting few microseconds occurs at the TF coil terminals and it electrically stresses the insulations of TF coils itsef. To investigate the voltage distribution across, inside and between different Double Pancakes (DPs) of each TF coil, a lumped parameters circuital model has been developed an…
Pierre Bourdieu e le pratiche sociali
2022
Pierre Bourdieu (1930-2002) is considered one of the greatest sociologists of the contemporary era. A scholar of many interests, as can be seen from the number of his works, the breadth of the topics he dealt with, and the breadth of the theoretical-epistemological issues he debated with the sociological scientific community, he represents the example of a French intellectual who combines an intense research life with an equally intense presence in the public debate concerning controversial issues. Born into an underprivileged family (his father was a sharecropper later employed as a postal worker) in a small town in southern France, he trained at the École Normal Supérieure under Luis Alth…
Partial-order reduction for parity games and parameterised Boolean equation systems
2022
AbstractIn model checking, reduction techniques can be helpful tools to fight the state-space explosion problem. Partial-order reduction (POR) is a well-known example, and many POR variants have been developed over the years. However, none of these can be used in the context of model checking stutter-sensitive temporal properties. We propose POR techniques for parity games, a well-established formalism for solving a variety of decision problems, including model checking. As a result, we obtain the first POR method that is sound for the full modal $$\upmu $$ μ -calculus. We show how our technique can be applied to the fixed point logic called parameterised Boolean equation systems, which pro…
Driver Distraction Detection Using Bidirectional Long Short-Term Network Based on Multiscale Entropy of EEG
2022
Driver distraction diverting drivers' attention to unrelated tasks and decreasing the ability to control vehicles, has aroused widespread concern about driving safety. Previous studies have found that driving performance decreases after distraction and have used vehicle behavioral features to detect distraction. But how brain activity changes while distraction remains unknown. Electroencephalography (EEG), a reliable indicator of brain activities has been widely employed in many fields. However, challenges still exist in mining the distraction information of EEG in realistic driving scenarios with uncertain information. In this paper, we propose a novel framework based on Multi-scale entrop…
Multi-sensor spectral synergies for crop stress detection and monitoring in the optical domain: A review
2022
The Trasversale Sicula. Themes and action research projects in sensitive Mediterranean areas
2022
There are many sensitive territories located in disadvantaged areas of the Mediterranean where depopulation has been a significant consequence of their economic and demographic decline. This has led to the gradual flight of young people and the disappearance of certain essential services. The conservation of resources is a topic of growing interest in Europe. It is necessary to rethink a new vision concerning the territory of small towns. Within this framework, this action research project aims to define a new collective sensibility, full of resources and history, throughout the territory of the Trasversale Sicula. The narrative of a new imaginary of the Sicilian hinterland is the foundatio…
Presentazione convegno
2022
The idea behind this Conference is to promote and disseminate legal and digital forms capable of making "sustainability" mandatory: and on the other hand to really achieve the climate objectives that would like to eliminate CO2 emissions and the land consumption by 2050, adherence to disciplinary leads to sustainability mindsets cannot be left to the "conscience" of entrepreneurs but should switch from incentivized forms of coercion or negotiation also with the use of already tested tools such as those of collective autonomy.
Heterozygote advantage and pleiotropy contribute to intraspecific color trait variability
2022
The persistence of intrapopulation phenotypic variation typically requires some form of balancing selection because drift and directional selection eventually erode genetic variation. Heterozygote advantage remains a classic explanation for the maintenance of genetic variation in the face of selection. However, examples of heterozygote advantage, other than those associated with disease resistance, are rather uncommon. Across most of its distribution, males of the aposematic moth Arctia plantaginis have two hindwing phenotypes determined by a heritable one locus-two allele polymorphism (genotypes: WW/Wy = white morph, yy = yellow morph). Using genotyped moths, we show that the presence of o…
A simulation study for assessing the impact of energy storage systems for Fast Reserve with additional synthetic inertia control on the Continental E…
2022
This article shows the results of a simulation study on the application of battery storage systems for providing fast frequency regulation (the so-named Fast Reserve) with additional synthetic inertia control. The aim of the study is to assess the impact of the extension of the regulation provided by the FRUs to all the Continental Europe synchronous grid, with the same power proportions of the first Italian FRU auction. The simulations are conducted in two different scenarios: a base one related to 2020 and a future one related to 2040 and based on ENTSO-E projections for load and generation. The results show that, for the reference incident of 3000 MW, the frequency quality parameters in …
Trattato del Modo di tenere il Libro Doppio Domestico col suo Essemplare (1636) Saggio introduttivo
2022
Questo saggio introduttivo correda la ripubblicazione, in testo integralmente traslitterato, del celeberrimo Trattato di Flori del 1636 con cui il principio di competenza economica e lo stesso conto economico trovano la loro origine nella letteratura contabile. Esso vuole essere soprattutto una guida ragionata alla sua lettura in cui si compendia il dibattito sin qui disponibile e si fornisce una chiave di lettura sull'impatto dell'opera nella più generale Storia della Ragioneria. Per far ciò il saggio riprende la storiografia in materia ad oggi disponibile, presenta i dati biografici dell'Autore, espone – sia pure con il dovuto grado di sintesi – i contenuti del testo. Posta questa ricostr…
Ruolo della Ciclofosfamide nel trattamento del Lupus Eritematoso Sistemico in paziente afroamericana con severo incremento degli indici di funzionali…
2022
Introduzione: la Ciclofosfamide rappresenta con il Micofenolato Mofetile uno tra i farmaci di scelta nelle fasi di induzione della nefrite lupica. Tuttavia, risulta ancora controverso il suo utilizzo nei soggetti di razza afroamericana. Caso Clinico: Paziente afroamericana puerpera di 36 anni, che giungeva alla nostra osservazione dopo parto cesareo in urgenza alla 34° settimana per riscontro di preclampasia. La paziente si presentava in stato anasarcatico, oligoanurica, con severa alterazione degli indici di funzione renale (Cr 4 mg/dl) proteinuria in range nefrosico ed anemizzazione severa. Storia di TBC linfonodale. Riscontro di positività ad esami bioumorali di autoimmunità: ANA, Anti- …
Middle-late Pleistocene eastern Mediterranean nutricline depth and coccolith preservation linked to Monsoon activity and Atlantic meridional overturn…
2022
Altres ajuts: Unidad de excelencia María de Maeztu CEX2019-000940-M; Universidade de Vigo's programme to attract excellent research talent (RR04092017) The eastern Mediterranean Sea lies under the influence of high- and low-latitude climatic systems. The northern part of the basin is affected by Atlantic depressions and continental and polar air masses that promote intermediate and deep-water formation. The southern part is influenced by subtropical conditions and monsoon activity. Monsoon intensification results in enhanced freshwater discharge from the Nile River and other (now dry) systems along the North African margin. This freshwater influx into the Mediterranean Sea reduces surface w…
Association between arterial stiffness and walking capacity in older adults
2022
Background and aim: Arterial stiffening – a process that is largely due to intimal thickening, collagen disposition or elastin fragmentation – significantly contributes to cardiovascular events and mortality. There is also some evidence that it may negatively affect physical function. This study aimed to evaluate whether arterial stiffness was associated with measures of walking capacity in a large, population-based sample of highly aged older adults.Methods: A population-based sample of 910 community-dwelling adults (aged 75, 80, or 85 years) were investigated in a cross-sectional observational study. Pulse wave velocity (PWV), a surrogate marker of arterial stiffness, was estimated based …
La verifica di un de restauro come criterio per una riflessione necessaria. La Villa Romana del Casale di Piazza Armerina (Enna), dal 1997 nella Worl…
2022
Nei pressi di Piazza Armerina (Enna), all'inizio del sec. XX, sono stati scoperti i resti della Villa romana del Casale (IV sec. dC), con ricchi pavimenti musivi. Dopo il primo restauro, verso la metà degli anni Cinquanta del sec. XX, l'architetto F. Minissi e C. Brandi progettarono una protezione stabile e un sistema per la fruizione dei resti della villa. Il tetto è stato realizzato con materiali moderni: profili in alluminio e lastre di vetro e perspex, che evocavano le antiche volurne, pur mantenendo l'autenticità dei resti. La sistemazione, per mancanza di manutenzione, è stata fonte di degrado per i mosaici, e infatti dal 2007 sono iniziati i lavori per la loro distruzione e sostituzi…
Real constituents of permutation characters
2022
Abstract We prove a broad generalization of a theorem of W. Burnside about the existence of real characters of finite groups to permutation characters. If G is a finite group, under the necessary hypothesis of O 2 ′ ( G ) = G , we can also give some control on the parity of multiplicities of the constituents of permutation characters (a result that needs the Classification of Finite Simple Groups). Along the way, we give a new characterization of the 2-closed finite groups using odd-order real elements of the group. All this can be seen as a contribution to Brauer's Problem 11 which asks how much information about subgroups of a finite group can be determined by the character table.
The effect of a temperature-sensitive prophage on the evolution of virulence in an opportunistic bacterial pathogen.
2022
https://doi.org/10.1111/mec.16638 Abstract Viruses are key actors of ecosystems and have major impacts on global biogeochemical cycles. Prophages deserve particular attention as they are ubiquitous in bacterial genomes and can enter a lytic cycle when triggered by environmental conditions. We explored how temperature affects the interactions between prophages and other biological levels by using an opportunistic pathogen, the bacterium Serratia marcescens, that harbours several prophages and that had undergone an evolution experiment under several temperature regimes. We found that the release of one of the prophages was temperature-sensitive and malleable to evolutionary changes. We furthe…
Ethics, Dialogue and English as a Lingua Franca for ESD in Higher Education
2022
Abstract The urgency for education to participate in the plan of action of the UN 2030 Agenda for Sustainable Development (SD) poses challenges to language education in university language centers. This paper discusses the potential of Higher Education (HE) language center courses to provide students with the knowledge and skills of inclusive, respectful, and equal communication needed in promoting SD and global citizenship. Education for sustainable development (ESD) in language teaching often focuses on integrating the content of SD topics into the language course. This paper focuses on the skills dimension and reports on a case study of a dialogue approach, a pedagogical method that coul…
Lowered nutritional quality of prey decrease the growth and biomolecule content of rainbow trout fry
2022
Diet quality is crucial for the development of offspring. Here, we examined how the nutritional quality of prey affects somatic growth and the lipid, carbohydrate, protein, amino acid, and polyunsaturated fatty acid content of rainbow trout (Oncorhynchus mykiss) fry using a three-trophic-level experimental setup. Diets differed especially in their content of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which are physiologically essential polyunsaturated fatty acids for a fish fry. Trout were fed with an artificial diet (fish feed, DHA-rich), marine zooplankton diet (krill/Mysis, DHA-rich), or freshwater zooplankton diet (Daphnia, Cladocera, DHA-deficient). The Daphnia were gr…