showing 36 of ~574560 from 574555 documents
The dark side of phubbing in the workplace: Investigating the role of intrinsic motivation and the use of enterprise social media (ESM) in a cross-cu…
2022
Despite the increasing phenomena of supervisor phubbing (a counterproductive workplace behaviour of managers), very few studies have explored its outcomes in organisations. This study aims to bridge this gap by investigating the relationships between supervisor phubbing and key employee outcomes. We conducted two studies in cross-cultural settings. In Study 1, which was conducted in Pakistan (a collectivistic culture), we collected 370 useable responses through an online survey from the employees working in the service sector organisations. Study 2, which was conducted in the United States of America (an individualistic culture), utilised the Prolific data collection service to gather 352 r…
The role of psychological inflexibility in adolescent satisfaction with the educational track and school dropout intentions
2022
This study aimed to obtain novel understanding of the associations between psychological inflexibility and adolescents' engagement with upper secondary studies. The participants were 885 Finnish adolescents (mean age 15.74 at the outset) whose psychological inflexibility was measured with the short form of the Acceptance and Fusion Questionnaire for Youth (AFQ-Y8) in the fall of the final (ninth) grade of basic education. School engagement was measured as satisfaction with the educational track and as school dropout intentions, and they were measured twice in the first study year after the transition to upper secondary education. The results showed that high psychological inflexibility in t…
Yeast interaction on Chardonnay wine composition: Impact of strain and inoculation time.
2022
Abstract It is of great importance to understand the molecular characteristics and substantial chemical transformations due to yeast-yeast interaction. Non-targeted metabolomics was used to unravel must in fermentation composition, inoculated with non-Saccharomyces (NS) yeasts and Saccharomyces cerevisiae (S) for sequential fermentation. ultrahigh-resolution mass spectrometry was able to distinguish thousands of metabolites and provides deep insights into grape must composition allowing better understanding of the yeast-yeast interactome. The dominance of S, characterized by a metabolic richness not found with NS, is dependent on inoculation time and on the yeast species present. Co-inocula…
The Emerging Role of Dual GLP-1 and GIP Receptor Agonists in Glycemic Management and Cardiovascular Risk Reduction
2022
The incretin pathway is a self-regulating feedback system connecting the gut with the brain, pancreas, and liver. Its predominant action is on the postprandial glucose levels, with extraglycemic effects on fat metabolism and endovascular function. Of the two main incretin hormones released with food ingestion, the actions of glucagon-like peptide-1 (GLP-1) have been exploited for therapeutic benefit. However, little attention has been paid to glucose-dependent insulinotropic polypeptide (GIP) until the recent experimental introduction of dual agonists, or "twincretins". Interestingly, simultaneous activation of both receptors is not only replicative of normal physiology, it seems to be an i…
La riforma degli articoli 9 e 41 della Costituzione e la valorizzazione dell'ambiente.
2022
Con la riforma degli art. 9 e 41 della Costituzione, approvata l’8 febbraio 2022, l’ambiente entra nella Costituzione tra i principi fondamentali ed in qualità di limite all’esercizio dell’attività economica. Il saggio propone una lettura della riforma in grado di avvalorare quell’orientamento che, sin dal secolo scorso, propugnava la ricostruzione dell’ambiente come diritto fondamentale della persona, in linea con la valorizzazione dello stesso quale bene distinto dal paesaggio, in una prospettiva esistenzialista di tutela della persona. La modifica introdotta, secondo l’autore, colma un vuoto costituzionale, divenuto insostenibile alla luce degli sviluppi della tutela ambientale, così com…
Isometric factorization of vector measures and applications to spaces of integrable functions
2022
Let $X$ be a Banach space, $\Sigma$ be a $\sigma$-algebra, and $m:\Sigma\to X$ be a (countably additive) vector measure. It is a well known consequence of the Davis-Figiel-Johnson-Pelczýnski factorization procedure that there exist a reflexive Banach space $Y$, a vector measure $\tilde{m}:\Sigma \to Y$ and an injective operator $J:Y \to X$ such that $m$ factors as $m=J\circ \tilde{m}$. We elaborate some theory of factoring vector measures and their integration operators with the help of the isometric version of the Davis-Figiel-Johnson-Pelczýnski factorization procedure. Along this way, we sharpen a result of Okada and Ricker that if the integration operator on $L_1(m)$ is weakly compact, t…
Enlarged PLIN5-uncoated lipid droplets in inner regions of skeletal muscle type II fibers associate with type 2 diabetes
2022
Skeletal muscle physiology remains of paramount importance in understanding insulin resistance. Due to its high lipid turnover rates, regulation of intramyocellular lipid droplets (LDs) is a key factor. Perilipin 5 (PLIN5) is one of the most critical agents in such regulation, being often referred as a protector against lipotoxicity and consequent skeletal muscle insulin resistance. We examined area fraction, size, subcellular localization and PLIN5 association of LDs in two fiber types of type 2 diabetic (T2D), obese (OB) and healthy (HC) individuals by means of fluorescence microscopy and image analysis. We found that T2D type II fibers have a significant sub-population of large and inter…
L'éthique de la personne: Liberté, autonomie et conscience dans la pensée de Pierre de Jean Olivi by Stève Bobillier
2022
Challenge Demands and Resilience
2022
Abstract. This study investigates the relationship of challenge demands (i. e., time pressure, job complexity) on employee resilience. We provide insights into potential pathways (i. e., learning, cognitive irritation) for how challenge stressors influence employee resilience. We employed a two-wave, time-lagged design to examine the influences of challenge stressors and explanatory pathways on employee resilience 2 months later. The data from 359 participants (52.1 % male) were analyzed using a Bayesian time-lagged path model. Results indicate that time pressure and job complexity are negatively related to employee resilience via cognitive irritation. In contrast, we found a positive, ind…
Video and Emotionality in the Social Network Sites during Elections : the general election campaign of April 2019 in Spain.
2022
This is a study on videos generated or shared on Facebook, Twitter and Instagram by the main political parties’ candidates during the general election campaign for the government of Spain in April 2019. Using a quantitative analysis and a statistical approach, the means of audiovisual persuasion used by the candidates are analysed, addressing their emotional nature. It is shown that the traditional political parties in their campaigns use audiovisual formats that are less emotional than those of the new emerging parties. Secondly, a clear difference can be seen among the leaders in their use of audiovisual formats to convey their messages.
Linking circular economy and digitalisation technologies: A systematic literature review of past achievements and future promises
2022
The circular economy (CE) has the potential to capitalise upon emerging digital technologies, such as big data, artificial intelligence (AI), blockchain and the Internet of things (IoT), amongst others. These digital technologies combined with business model innovation are deemed to provide solutions to myriad problems in the world, including those related to circular economy transformation. Given the societal and practical importance of CE and digitalisation, last decade has witnessed a significant increase in academic publication on these topics. Therefore, this study aims to capture the essence of the scholarly work at the intersection of the CE and digital technologies. A detailed analy…
Dentro e fuori: lo strano caso delle clausole e dei principi generali
2022
The author offers a reconstruction of the typical modality of application of the general clauses, represented by their concretization. The latter takes place through the use, by the judge, of the the principles of the legal sistem, both of those specific to each specific sector, and of those of constitutional law.
Participation in sociolinguistic research
2022
Involving speakers in research on their linguistic practices has been at the core of sociolinguistics since the inception of the field. In contrast to social sciences, however, sociolinguists have rarely addressed the issues surrounding the participation of those involved and engaged in the research process. This paper aims at reviewing the state of the art and outlining critical dimensions and aspects with relation to participation. We explore previous studies and study designs with the help of the following questions: Who has been involved? How and with what impact have stakeholders participated in different strands of sociolinguistic research? Current developments are presented and revie…
Adaptive ML-based technique for renewable energy system power forecasting in hybrid PV-Wind farms power conversion systems
2022
Large scale integration of renewable energy system with classical electrical power generation system requires a precise balance to maintain and optimize the supply–demand limitations in power grids operations. For this purpose, accurate forecasting is needed from wind energy conversion systems (WECS) and solar power plants (SPPs). This daunting task has limits with long-short term and precise term forecasting due to the highly random nature of environmental conditions. This paper offers a hybrid variational decomposition model (HVDM) as a revolutionary composite deep learning-based evolutionary technique for accurate power production forecasting in microgrid farms. The objective is to obtai…
GPR 3D model in the area of the San Nicola church, Misterbianco (Sicily)
2022
Abstract In 1669 the most destructive eruption on Etna volcano was recorded since historical times (about 700 BCE), whose lava flow destroyed completely the ancient town of Misterbianco, located on the southern slope of Mount Etna. San Nicola church is one of the three churches that historically were covered by lava flow. In the 1980s, some works for the construction of a parking lot allowed to discover an ancient wall belonging to the church. Some georadar prospections were carried out in the investigated area finalized to reconstruct the planimetric development of the ancient church and to direct future excavation works.
Activated carbon from hydrolysis lignin: Effect of activation method on carbon properties
2022
This study presents the effects of different activation methods to produce activated carbon from the hydrolysis lignin. Pretreatment of the feedstock with common mineral acids (HCL, HNO3, and H3PO4), different steam rates for physical activation, and different chemical activating agents (ZnCl2, Na2CO3, and KOH) for chemical activation were investigated. The pretreated biomass was carbonized and activated in one-stage process and the surface characteristics, such as total pore volume, pore size distribution and specific surface area, were investigated. The results showed that the activated carbon surface properties were not greatly affected by acid pretreatment. Brunauer-Emmett-Teller (BET) …
Click amidations, esterifications and one–pot reactions catalyzed by Cu salts and multimetal–organic frameworks (M–MOFs)
2022
Amides and esters are prevalent chemicals in Nature, industry and academic laboratories. Thus, it is not surprising that a plethora of synthetic methods for these compounds has been developed along the years. However, these methods are not 100% atom economical and generally require harsh reagents or reaction conditions. Here we show a “spring–loaded”, 100% atom–efficient amidation and esterification protocol which consists in the ring opening of cyclopropenones with amines or alcohols. Some alkyl amines react spontaneously at room temperature in a variety of solvents and reaction conditions, including water at different pHs, while other alkyl amines, aromatic amines and alcohols react in th…
Appunti sparsi per una digitalità che si avvia verso il Metaverso
2022
Il Metaverso rappresenta un nuovo "turn" all'interno della tecnologia e della cultura digitale. Questa svolta fa emergere nuove questioni e pone nuove sfide soprattutto nel settore della comunicazione e della cultura.
Current European approaches in highway runoff management: A review
2022
Highway runoff is one of the most significant non-point sources of pollution for the terrestrial and aquatic environment with biological, physical, and chemical effects. Considering local characteristics, treatment practices, and determining factors are essential for highway runoff management. The aim of this paper is to survey the review of highway runoff management in Europe with emphasis on runoff characterization, treatment, and modeling approaches and identifying possible knowledge gaps exists based on our review. The results showed that highway runoff has spatiotemporal variation, which is the main factor in the regional selection of the best management practice (BMP). Also, recent st…
The Training Characteristics of World-Class Distance Runners: An Integration of Scientifc Literature and Results-Proven Practice
2022
AbstractIn this review we integrate the scientific literature and results-proven practice and outline a novel framework for understanding the training and development of elite long-distance performance. Herein, we describe how fundamental training characteristics and well-known training principles are applied. World-leading track runners (i.e., 5000 and 10,000 m) and marathon specialists participate in 9 ± 3 and 6 ± 2 (mean ± SD) annual competitions, respectively. The weekly running distance in the mid-preparation period is in the range 160–220 km for marathoners and 130–190 km for track runners. These differences are mainly explained by more running kilometers on each session for marathon …
Genetic integrity of European wildcats: Variation across biomes mandates geographically tailored conservation strategies
2022
Hybridisation between domestic and wild taxa can pose severe threats to wildlife conservation, and human-induced hybridisation, often linked to species' introductions and habitat degradation, may promote reproductive opportunities between species for which natural interbreeding would be highly unlikely. Using a biome-specific approach, we examine the effects of a suite of ecological drivers on the European wildcat's genetic integrity, while assessing the role played by protected areas in this process. We used genotype data from 1217 putative European wildcat samples from 13 European countries to assess the effects of landcover, disturbance and legal landscape protection on the European wild…
Search for invisible decays of the Λ baryon
2022
Physical review / D 105(7), L071101 (2022). doi:10.1103/PhysRevD.105.L071101
Saggio introduttivo. Le ragioni, gli esiti e le attuali criticità del Reddito di Cittadinanza
2022
Il saggio evidenzia le principali criticità e i punti di forza della misura di contrasto alle povertà. In esso l'autrice descrive le recenti indicazioni che l'Unione Europea ha fornito e segnala gli elementi di novità nell'erogazione del reddito di cittadinanza in Italia e i primi risultati ottenuti. The essay highlights the main critical points and strengths of the measure to combat poverty. In it, the author describes the recent indications that the European Union has provided and reports the elements of novelty in the provision of citizenship income in Italy and the first results obtained
Nessuno resta indietro: un progetto di service learning
2022
La chiusura delle scuole ha provocato un incremento significativo della povertà educativa ha sollecitato l’opportunità di progettare interventi integrati di service learning per favorire il recupero e il potenziamento dei minori in difficoltà. 869 studenti del Corso di Laurea Magistrale in Scienze della Formazione Primaria dell’Università degli Studi di Palermo, sono stati coinvolti nella progettazione e nella realizzazione di percorsi didattici mirati, rivolti agli alunni “fragili” di 33 scuole palermitane. Complessivamente sono state erogate 60.000 ore in DAD di attività di recupero e di potenziamento dell’apprendimento di alunni della scuola primaria di Palermo. Le attività didattiche sf…
Embodied and affective negotiation over spatial and epistemic group territories among school-children : (Re)producing moral orders in open learning e…
2022
This study investigates how schoolchildren organise their spatial and epistemic ‘territories’ among peer groups to constitute local social and moral orders in open learning environments. Open learning environments, the result of recent school reforms in Finland, challenge the conventional organisation of traditional classrooms. We use a microanalysis of naturally occurring video-recorded interactions to show the interactional dynamics of how children produce epistemic and spatial territories by creating moment-by-moment unfolding participation frameworks and emotional alliances. We suggest that the lack of institutional structures in open learning environments withholds children from the te…
Sediment transport mechanisms and selective removal of soil particles under unsteady-state conditions in a sheet erosion system
2022
Abstract Selective removal of particles and nutrients by water erosion is a key factor in soil erosion studies. Most agricultural soils are located on gentle slopes where fertility is high; however, until now, the main attention on sediment transport mechanisms was paid to high-slope gradients, where soil erosion is intense, but soils are less productive. Despite the importance of sediment size distribution (SSD) and transport mechanisms under unsteady-state conditions, few studies have been done on this issue. Higher sediment concentrations in the early stages of the runoff indicate the need to deal with unsteady-state conditions. To address this issue, sheet erosion experiments were done …
To what extent do our walking and cycling behaviours relate to each other, and do we cycle as well as we think we do? Piloting the Walking and Cyclin…
2022
Greater uptake of active transport has been argued as necessary for the transport system to achieve relevant sustainability and public health goals; however, the research tools used to investigate behaviour when using these modes are far less well-developed than those used to investigate driving behaviour. This study takes two self-report behavioural measures, the Walking Behaviour Questionnaire (WBQ) and the Cycling Behaviour Questionnaire (WBQ), and pilots them in the UK. Exploratory and confirmatory factor analyses with data from 428 respondents revealed factor structures different to those described in the limited number of previous studies that used the CBQ and WBQ. Across both questio…
INCLUSIVE HOUSEBOAT PROJECT
2022
The Nautical Centre LNI “BEYOND BARRIERS”, in the Cala of Palermo, has ordered the first inclusive Houseboat: a semi-custom product made in one piece by local workers. Over the past two decades, more attention has been paid to the issue of architectural barriers. Inclusive design must take into account many aspects of the product or service being designed, with a view to the future: the aging and longevity of the population, the dignity of people, the usability of products, their aesthetics of and the role of technology.
La partecipazione popolare al procedimento legislativo prevista dallo Statuto: vincolo giuridico o politico-parlamentare?
2022
This paper aims to analyze the participation of organized interests in the legislative process, disciplined by the article 12.3 of the Sicilian Statute. The results of the research show that no other regional statute, and not even the Rules of procedure of the two chambers of the Parliament, adopts the same mechanism of participation. The Sicilian Statute can be considered an interesting example of how the decision- making process can include organized interests as already experimented with the public debate on large infrastructures.
Riflessioni a margine dell’ordinanza cautelare del 26 novembre 2021 del Tribunale di Gorizia: greenwashing tra concorrenza sleale e diritto del consu…
2022
La pubblicizzazione sul mercato di prodotti ecofriendly non di rado si è rivelata frutto di pratiche scorrette di c.d. greenwashing, ciò consistendo in ipotesi di concorrenza sleale capaci di alterare i sistemi competitivi del libero mercato e ledere il diritto dei consumatori all’acquisto consapevole. Simili atti sono oggi sanzionati ricorrendo ad inibitorie e a comunicazioni pubbliche in cui l’impresa infedele informa i propri consumatori circa l’ingannevolezza dei comportamenti posti in essere. In tale ambito, che in primo luogo interessa il settore agroalimentare, si inserisce l’ordinanza cautelare del 26 novembre 2021 del Tribunale di Gorizia. Il ricorso a disciplinari di produzione ba…
Differences in the Assessment of Safe and Risky Driving Behaviors: Pedestrians Versus Drivers
2022
Interactions between pedestrians and drivers are an important traffic safety issue. Psycho-social factors such as thoughts, perceptions and attitudes toward other people can be reliable predictors of riskier or safer behaviors among road users. The aim of this study was to assess how frequently participants perceive that drivers perform safe and risky road behaviors through drivers’ self-reported behavior and pedestrians and other drivers’ external perceptions. The results show that pedestrians assess the road behaviors of drivers in a seriously negative way. Meanwhile, drivers perceive their own behaviors as more appropriate than those performed by the rest of drivers. Women attribute mor…
Pupil size differences between female and male patients after cataract surgery.
2022
Purpose To evaluate the changes in pupil diameter in women and men after cataract surgery. The correlation of pupillary changes with the variables age and anterior chamber depth will be analyzed. Methods The values of 109 randomized eyes who underwent cataract surgery were obtained and divided into two groups, 71 women and 38 men. Pupil diameter was measured preoperatively and 3-months postoperatively using the pupillometer software of the Topolyzer Vario (Wavelight Laser Technologie AG). Anterior chamber depth was obtained with Pentacam® (Oculus). Differences in pupillary diameters were investigated and correlations with age and anterior chamber depth were analyzed. Results For mesopic pup…
Quanta infestazione di mosca possiamo tollerare?
2022
In questo articolo sono riportati i sorprendenti risultati dei pochi recenti articoli scientifici che indicano la soglia di tolleranza della mosca delle olive per l'ottenimento di olio. In caso di raccolte precoci e medie, con estrazione entro le 24 ore, si possono ottenere oli extravergini d'altà qualità anche con 43-44% di fori d'uscita di Bactrocera oleae This article reports the surprising results of the few recent scientific papers that indicate the tolerance threshold of olive fly for obtaining oil. In case of early and medium harvests, with extraction within 24 hours, high quality extra virgin olive oils can be obtained even with 43-44% exit holes of Bactrocera oleae
Macrophage MerTK promotes profibrogenic cross-talk with hepatic stellate cells via soluble mediators
2022
Background & aims: Activation of Kupffer cells and recruitment of monocytes are key events in fibrogenesis. These cells release soluble mediators which induce the activation of hepatic stellate cells (HSCs), the main fibrogenic cell type within the liver. Mer tyrosine kinase (MerTK) signaling regulates multiple processes in macrophages and has been implicated in the pathogenesis of non-alcoholic steatohepatitis-related fibrosis. In this study, we explored if MerTK activation in macrophages influences the profibrogenic phenotype of HSCs. Methods: Macrophages were derived from THP-1 cells or differentiated from peripheral blood monocytes towards MerTK+/CD206+/CD163+/CD209- macrophages. Th…
Four-Year Environmental Surveillance Program of Legionella spp. in One of Palermo’s Largest Hospitals
2022
Legionella is a ubiquitous bacterium that lives in freshwater environments and colonizes human-made water systems. Legionella pneumophila is the most virulent species, and risk factors for Legionnaires’ disease include increasing age, smoking, chronic diseases, and immunodeficiency. For this reason, it is very important to assess and monitor hospital water systems in order to prevent legionellosis. We have monitored a large hospital in Palermo for four years. To determine the presence of microorganisms, according to national guidelines, we used the culture method, which is considered the gold standard for Legionella detection. Sampling was divided into five macro-areas, and a total of 251 s…
Management diversity begets biodiversity in production forest landscapes
2022
How to manage forest for biodiversity conservation is an ongoing debate. We argue that maximizing biodiversity in managed forest landscapes requires a diversity of forest management regimes in space and time. This will generate high levels of habitat heterogeneity at a landscape scale, which in turn will support various groups of forest species. Based on concepts from landscape ecology, we formulate five hypotheses on how management diversity, i.e. combining various management approaches can benefit overall biodiversity across a production forest landscape. First, management diversity will increase habitat diversity and, therefore, beta diversity (the habitat diversity hypothesis). Second, …