showing 36 of ~574560 from 574555 documents
Prosodic modulation as a mark to express pragmatic values: The case of mitigation in Spanish
2021
Abstract One of the functions of prosody in discourse is to convey pragmatic values that add up to the core semantic meaning of spoken units or segments. Regarding mitigation, Caffi (1999: 890) specifically discusses “the very important prosodic and kinesic means of mitigation, such as changes in pitch prominence, rhythm, speech rate, as well as eye-contact, gaze, gaze aversion, smile, particular postures, etc.” In this paper, I focus on some prosodic factors such as pitch, intensity, duration and speech rate that can be used in European Spanish, in combination with pragmatic meanings. The first aim is to establish a theoretical deliberation on prosody as a clear marker to convey pragmatic …
Editorial RES 2/2021
2021
Cardiac Computed Tomography Angiography Follow-Up of Resorbable Magnesium Scaffolds.
2021
Abstract Introduction An ancillary advantage of bioresorbable scaffolds is the possibility of non-invasive imaging assessment of the treated coronary segment. Cardiac computed tomography angiography (CCTA) studies of resorbable magnesium scaffolds (RMS) are scarce. Methods In this collaborative, international study, nine patients who had an RMS implanted underwent CCTA as part of follow-up assessment. Core-lab blinded quantitative and qualitative assessment was performed by an independent CCTA investigator. Results Eight studies were amenable for quantitative analysis, and the blinded CT investigator successfully located and evaluated patency of RMS in all cases. The CCTA follow-up in-scaff…
Dianthus superbus as a critically endangered species in Latvia: evaluation of its growth conditions and conservation possibilities
2021
Abstract Dianthus superbus is one of the most endangered species in Latvia and is on the verge of local extinction. Therefore, the aim of this study was to inventory previously identified populations of D. superbus in Latvia and to develop activities to conserve this species in accordance with the results obtained in situ. Expeditions on 18 previously documented locations, according to the data of Nature Conservation Agency, revealed only three existing D. superbus localities in Latvia with a significant number of specimens located in the Latgale region near Silenieki. In 2020, for the first time, two more new D. superbus localities were found in the vicinity of these three approved locatio…
I BBPR a Palermo tra innesti di modelli esogeni e influenze endogene
2021
Se vi è qualcosa di profondamente e visceralmente connaturato alla stessa dimensione esistenziale della città di Palermo, sin dalle sue molteplici e stratificate origini fenicio-puniche, questo è certamente il concetto di ‘innesto’. Ed in analogia con l’innesto agrario, cioè con la pratica del far concrescere in una pianta esistente una parte di un altro vegetale, al fine di rafforzare il primo soggetto ma modificandolo verso un genere diverso da quello iniziale, l’intera storia millenaria della città potrà essere riguardata come il frutto di continui, ciclici introduzioni di modelli architettonici e urbani esogeni, declinati rispetto alle contingenze culturali autoctone dei diversi esempi …
L’ammissibilità ratione personae dei ricorsi alla Corte europea di individui estremamente vulnerabili: uguaglianza sostanziale e tutela del diritto d…
2021
The legal framework governing proceedings before the ECtHR does not deal with cases in which victims of human rights violations are not de jure and/or de facto capable of lodging applications with the Court. In the effort of overcoming such a procedural lacuna, the Court has established a test that, taking into consideration the extreme vulnerability of the victims (such as minors and persons with disabilities) and the seriousness of the alleged violations, allows NGOs to apply as their ‘de facto representatives’, provided that some other conditions are fulfilled. The Court’s approach, however, has not been always consistent and does not guarantee predictability and legal certainty. Moreove…
The Pion Single-Event Latch-Up Cross Section Enhancement: Mechanisms and Consequences for Accelerator Hardness Assurance
2021
Pions make up a large part of the hadronic environment typical of accelerator mixed fields. Characterizing device cross sections against pions is usually disregarded in favor of tests with protons, whose single-event latch-up (SEL) cross section is, nonetheless, experimentally found to be lower than that of pions for all energies below 250 MeV. While Monte Carlo simulations are capable of reproducing such behavior, the reason for the observed pion cross-section enhancement can only be explained by a deeper analysis of the underlying mechanisms dominating proton–silicon and pion–silicon reactions. The mechanisms dominating the SEL response are found to vary with the energy under consideratio…
Inclusive heavy-flavour production at central and forward rapidity in Xe–Xe collisions at TeV
2021
The first measurements of the production of muons and electrons from heavy-flavour hadron decays in Xe–Xe collisions at sNN=5.44 TeV, using the ALICE detector at the LHC, are reported. The measurement of the nuclear modification factor RAA is performed as a function of transverse momentum pT in several centrality classes at forward rapidity (2.5<y<4) and midrapidity (|y|<0.8) for muons and electrons from heavy-flavour hadron decays, respectively. A suppression by a factor up to about 2.5 compared to the binary-scaled pp reference is observed in central collisions at both central and forward rapidities. The RAA of muons from heavy-flavour hadron decays is compared to previous measur…
The effective group size for teaching cardiopulmonary resuscitation skills – A randomized controlled simulation trial
2021
Abstract Aim of the study The ideal group size for effective teaching of cardiopulmonary resuscitation is currently under debate. The upper limit is reached when instructors are unable to correct participants’ errors during skills practice. This simulation study aimed to define this limit during cardiopulmonary resuscitation teaching. Methods Medical students acting as simulated Basic Life Support course participants were instructed to make three different pre-defined Basic Life Support quality errors (e.g., chest compression too fast) in 7 min. Basic Life Support instructors were randomized to groups of 3–10 participants. Instructors were asked to observe the Basic Life Support skills and …
Enuresis. Let's look towards the future. What concepts are useful?
2021
Global capitalism guided by desire- Solvang, CA, as a “real” place
2021
Abstract How to deal with the transformation of place in the face of global capitalism is marked by many active debates. This paper dives into the transformation of the city of Solvang in California, from an agricultural village to a tourist destination. One way to analyse the process is to treat it as commodification, where values produced in places are being turned into exchangeable commodities. What results from such critical studies of capitalism too often result in apathy rather than positive action, it tends to deal less with ‘the real world’ than thought experiments about possible worlds. Another approach connects to the relational turn and the application of assemblage theory in stu…
Pre-conceptual design of EU-DEMO Divertor primary heat transfer systems
2021
Abstract In the frame of the activities promoted and encouraged by the EUROfusion Power Plant Physics and Technology (PPPT) department aimed at developing the EU-DEMO fusion reactor, strong emphasis has been recently addressed to the whole Balance of Plant (BoP) which represents the set of systems devoted to convert the plasma generated thermal power into electricity and to deliver it to the grid. Among these systems, the Divertor Primary Heat Transfer Systems (PHTSs) are intended to feed coolant to the two main components of the Divertor assembly, namely the Plasma Facing Components (PFCs) and the Cassette Body (CB). Since the DEMO Divertor must withstand high heat flux loads together with…
Identification of high-affinity phage-displayed VH fragments by use of a quartz crystal microbalance with dissipation monitoring
2021
10 Pág. Departamento de Tecnología de Alimentos
Shear Capacity Model with Variable Orientation of Concrete Stress Field for RC Beams Strengthened by FRP with Different Inclinations
2021
A design-oriented analytical model able to evaluate the shear capacity of reinforced concrete (RC) beams strengthened with fiber-reinforced polymer (FRP) sheets or strips oriented in any direction is proposed. The formulation of the model is based on the variable-inclination stress-field approach, aiming to extend the provisions of current European standards to beams strengthened in shear using FRP. The main novelty of the model lies in taking into account the possible different inclination of steel stirrup and FRP reinforcement in determining the orientation of a compressed concrete stress field, and in shear strength evaluation, overcoming the approximation of the known models with variab…
Persone, organizzazioni e intermediari alla ricerca del lavoro
2021
Il primo capitolo illustra i cambiamenti che stanno interessando le economie e le societ contemporanee sia con riferimento al contesto nazionale che internazionale e il loro impatto sui processi di ricerca. A questo scopo il capitolo prende in esame una serie di fattori demografici, aziendali, economici, politici e tecnologici i cui trend stanno rendendo sempre pi critico il tema della ricerca delle risorse umane. Il secondo capitolo prende in considerazione la ricerca dal punto di vista delle organizzazioni aziendali. Esso si articola in tre parti. Nella prima parte si spiega la collocazione teorica della funzione organizzativa nel quadro della teoria generale delle risorse umane. Succes…
Current L2 self-concept of Finnish comprehensive school students : The role of grades, parents, peers, and society
2021
L2 (second/foreign language) motivation research in Finland has been scarce. Furthermore, international motivational research has focused more on ideal and ought-to selves, leaving the current L2 self-concept in the background. In the present study, we attempted to address this gap, exploring what shapes L1 (mother tongue) Finnish students' understanding of themselves as users and learners of L2s. Using structural equation modelling, we studied the relationships between students' (n = 1206) current L2 self-concept and parental encouragement, peer pressure, societal expectations, and grades. We further studied which of these factors are the best predictors of students' current L2 self-concep…
Global Chronic Total Occlusion Crossing Algorithm: JACC State-of-the-Art Review
2021
© 2021 The Authors. Published by Elsevier on behalf of the American College of Cardiology Foundation. This is an open access article under the CC-BY-NC-ND license.
Análisis de las habilidades del manejo del grupo en un programa de educación afectivo-sexual para DFI
2021
Las habilidades de manejo de grupo que presenten los profesionales que imparten los programas de educación afectivo-sexual para personas con discapacidad intelectual son esenciales a fin de dirigir las sesiones hacia los objetivos establecidos. Por ello, el objetivo del presente trabajo es explorar las incidencias producidas durante la aplicación del Programa SALUDIVERSEX, en función del tipo de contenido de la sesión, analizando las habilidades de manejo del grupo de los 29 profesionales (90% mujeres y 10% hombres) que aplicaron este programa. Los resultados sugieren que las conductas inapropiadas de los/as usuarios/as son las incidencias más frecuentes tanto en las sesiones que trabajan h…
Immune-Mediated Desquamative Gingivitis and Optical Coherence Tomography Diagnostic Patterns: Clinical Implication from a Systematic Review
2021
Desquamative Gingivitis (DG) comprises heterogeneous clinical manifestations of numerous immune-mediated muco-cutaneous diseases. Optical Coherence Tomography (OCT) has been proposed as a valuable diagnostic support even if, to date, there are no standardized OCT-diagnostic patterns applicable to DGs. A systematic review was performed to detect existing data on in vivo OCT diagnostic patterns of the most common immune-mediated DGs (i.e., pemphigus vulgaris, mucous membrane pemphigoid and oral lichen planus). It has been found that OCT exhibits specific patterns that address the diagnosis of DG by pemphigus vulgaris (i.e., intraepithelial unilocular blister, reduced epithelial thickness, pre…
Social media use to improve communication on children and adolescent’s health: the role of the Italian Paediatric Society influencers
2021
Abstract Background Fake news on children’s and adolescent health are spreading. Internet availability and decreasing costs of media devices are contributing to an easy access to technology by families. Public health organizations are working to contrast misinformation and promote scientific communication. In this context, a new form of communication is emerging social media influencers. Aim of this study is to evaluate the role of paediatric influencers (PI) in communicating information about children and adolescents’ health. Materials and methods A group of PI was enrolled from December 2019 to January 2020 by a scientific commission nominated by the Italian Paediatric Society (SIP). PI w…
Quality of life and fear of COVID-19 in 2600 baccalaureate nursing students at five universities : a cross-sectional study
2021
Abstract Background The COVID-19 pandemic has caused significant disruptions in the implementation of programs across educational institutions. Nursing students, being both young adults and by practical training, part of the health care system, may be particularly vulnerable during the COVID-19 pandemic. The purpose of this study was to explore the associations between self-reported fear of COVID-19, general health, psychological distress and overall quality of life (QoL) in a sample of Norwegian baccalaureate nursing students compared to reference data. Methods The survey targeted baccalaureate nursing students from five universities in February 2021. An electronic questionnaire consisted …
Periodontal Behavior and Patient Satisfaction of Anterior Teeth Restored with Single Zirconia Crowns Using a Biologically Oriented Preparation Techni…
2021
bjectives. The aim of this study was to analyze the behavior of the periodontal tissues around teeth in the anterior region when restored with zirconia single crowns, using a biologically oriented preparation technique (BOPT), over a 6-year follow-up. Methods. The study investigated tooth-supported single crowns in the anterior region that were fabricated with a zirconia core and feldspathic ceramic covering, in 34 patients. Follow-up analysis took place annually for 6 years, assessing periodontal responses by evaluating the following variables: plaque index (PI)
Cuencas de montaña y la construcción de una encuesta interdisciplinaria
2021
Este estudio presentó una reflexión sobre la encuesta como estrategia de investigación social, dentro de un contexto específico, como lo representan las cuencas de montaña. Y más aún, la problemática se enfocó en la recolección de datos que tienen que darse dentro de los sistemas de riego; por esta razón, el objetivo fue la identificación de aquellos aspectos que deben ser tomados en cuenta para la construcción de una encuesta interdisciplinaria en ese contexto. Se realizó una revisión sistemática exploratoria de literatura sobre el tema propuesto y en la región señalada. Los principales hallazgos establecieron la necesidad de que los estudios sobre estos ecosistemas, tienen que tomar en cu…
Determining a healthy reference range and factors potentially influencing PRO-C3 – A biomarker of liver fibrosis
2021
Background & Aims Progressive fibrosis has been identified as the major predictor of mortality in patients with non-alcoholic fatty liver disease (NAFLD). Several biomarkers are currently being evaluated for their ability to substitute the liver biopsy as the reference standard. Recent clinical studies in NAFLD/NASH patients support the utility of PRO-C3, a marker of type III collagen formation, as a marker for the degree of fibrosis, disease activity, and effect of treatment. Here we establish the healthy reference range, optimal sample handling conditions for both short- and long-term serum storage, and robustness for the PRO-C3 assay. Methods PRO-C3 was measured in 269 healthy volunteers…
A study of capillarity phenomena by using a computer-based simulation approach
2021
Liquid properties are relevant for the understanding of fundamental and applied sciences. Among these properties, those that can be traced back and explained through the surface tension are particularly interesting to study and reconstruct in educational terms. Traditional educational treatment of surface tension is often obscure or too complex, sometimes superficial or completely neglected. The aim of the research here described is to discuss in detail a mesoscopic model of liquids and show quantitative results obtained by a computer simulation approach. Looking at the educational aspect, the main advantage of this approach is that it allows the student/teacher to control the simulation pa…
Follow‐up of patients subjected to direct and indirect pulp capping of young permanent teeth. A retrospective study
2021
Abstract Objective A retrospective study of the success rate of direct pulp capping (DPC) and indirect pulp capping (IPC) was carried out in children between 6–14 years‐old, considering separately primary caries or caries affecting teeth with molar incisor hypomineralization (MIH). Material and methods Data were collected in a dental public health service. Following the inclusion criteria, 232 treatments were analyzed. Success was defined by the presence of a functional tooth without clinical signs or symptoms of pulpal or periapical disease. The success rate was correlated to patient gender, the affected tooth and the indication of therapy using the chi‐squared and Fisher exact test. The s…
Gamma-valerolactone from levulinic acid and its esters: Substrate and reaction media determine the optimal catalyst
2021
13 figures, 7 tables.-- © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0
Impact of anionic system modification on the desired properties for CuGa(S1−Se )2 solid solutions
2021
Abstract One of promising directions of the modern solar cells’ development is related to the use of the ternary chalcopyrite crystals (CuInS2, CuGaS2 etc.) and their solid solutions as efficient light absorbing layers. Unfortunately, so far there is no systematic research linking chemical composition to useful properties allowing their optimization to increase the efficiency of solar cells. Therefore, we report the results of the detailed theoretical studies of the structural, electronic, and optical properties for the series of CuGa(S1−xSex)2 solid solutions (x = 0, 0.25, 0.5, 0.75, 1) in the framework of the density functional theory. For this purpose, crystal structures are analyzed wit…
The role of sense of community in harnessing the wisdom of crowds and creating collaborative knowledge during the COVID-19 pandemic
2021
Abstract This study investigates the role of sense of community in harnessing the wisdom of the crowd and creating collaborative knowledge during the COVID-19 pandemic. It also explores the impact of collaborative knowledge creation on the perceived value of social media crowdsourcing in such crises. PLS-SEM was used to analyze the data and test the research model. The results show that sense of community has a significant role in harnessing the wisdom of the crowd and creating collaborative knowledge. The results confirm a significant impact of sense of community, the wisdom of the crowd, and collaborative knowledge creation on the perceived value of social media crowdsourcing in respondin…
Right ventricular diastolic function in post-surgical Tetralogy of Fallot patients: A pilot study to make a comparison between echocardiography and c…
2021
Background: right ventricular (RV) systolic dysfunction is associated with poor outcomes in Tetralogy of Fallot (ToF) patients. Conversely, the influence of diastolic dysfunction in this setting is poorly known. In addition, evaluation of RV diastolic function by cardiac MRI is rarely performed.Materials and methods: twenty-four surgically treated ToF patients were enrolled in the study (54% males; median age at study: 28 (18–50) years; median age at surgery: 1.9 (0.4–8.2) years. They were studied by echocardiography to assess RV diastolic function in terms of traditional and TDI-derived parameters. At cardiac MRI, RV diastolic function was assessed by using phase-contrast analysis of flow …
Recent advances on development of portable biosensors for monitoring of biological contaminants in foods
2021
Abstract Background There is a demand for easy, rapid and affordable analysis of biological contaminants in foods to guarantee their safety and quality. Most analysis of food contaminants is commonly performed in a limited number of samples in centralized laboratories by an expert technician. Therefore, developing of alternative techniques such as portable biosensors is of great significance. Scope and approach This review aims to discuss the recent advances in designing and applying of portable biosensors for the detection of biological food contaminants including bacteria, fungi and the related toxins. Also, the review deals briefly the basic knowledge of various portable biosensors which…
Benefits of Integrating an Explicit Self-Efficacy Intervention With Calculation Strategy Training for Low-Performing Elementary Students
2021
This study examined the malleability of math self-efficacy (SE) among children with poor calculation fluency via an intervention that targeted four sources of SE (mastery experiences, vicarious experiences, social persuasions, and emotional and physiological states). The effect of pure strategy training was contrasted with an intervention that integrated strategy training and explicit SE support. Moreover, the changes in SE source experiences and their relation with math SE, as well as the relation between math-SE profiles and calculation fluency development, were examined. In a quasi-experimental design, 60 Finnish children with calculation fluency problems in Grades 2 to 4 participated in…
Numerical evaluation of iterated integrals related to elliptic Feynman integrals
2021
We report on an implementation within GiNaC to evaluate iterated integrals related to elliptic Feynman integrals numerically to arbitrary precision within the region of convergence of the series expansion of the integrand. The implementation includes iterated integrals of modular forms as well as iterated integrals involving the Kronecker coefficient functions $g^{(k)}(z,\tau)$. For the Kronecker coefficient functions iterated integrals in $d\tau$ and $dz$ are implemented. This includes elliptic multiple polylogarithms.
Polarization properties of a fiber optic loop mirror
2021
Abstract In this work, we present the spectral polarization properties of a fiber optic loop mirror (FOLM) which includes a 50/50 coupler and 25-cm long highly birefringent (hi-bi) fiber. The modulation depth of the reflection/transmission spectra can be adjusted by twisting the hi-bi fiber at the splices by means of two azimuth rotators (AR). The results show that the polarization properties of the reflection strongly depends on the angle rotation. We found that it is possible to obtain reflection spectral polarization independence for any modulation depth with the proper parameters. The experimental behavior was confirmed by numerical simulations based on the Jones matrix formulation.
High-efficiency fullerene free ternary organic solar cells based with two small molecules as donor
2021
Abstract Herein, we have designed a ternary system comprising of two small molecules (B2 and B3), as donor and a narrow bandgap non-fullerene small molecule acceptor Y6. The chemical structures of B2 and B3 are close to each other but their absorption spectra are complementary with different energy levels. Using these small-molecules, a ternary organic solar cell was fabricated. The presence of B2 in the B3:Y6 blend increases the photon harvesting as well as also forms cascade energy level arrangement which benefits assisting the balancing between the dissociation of excitons into free charge carriers and their subsequent charge transfer between the two donors (B2 and B3) and the acceptor (…
High-Yield Growth and Tunable Morphology of Bi2Se3 Nanoribbons Synthesized on Thermally Dewetted Au
2021
The yield and morphology (length, width, thickness) of stoichiometric Bi2Se3 nanoribbons grown by physical vapor deposition is studied as a function of the diameters and areal number density of the Au catalyst nanoparticles of mean diameters 8–150 nm formed by dewetting Au layers of thicknesses 1.5–16 nm. The highest yield of the Bi2Se3 nanoribbons is reached when synthesized on dewetted 3 nm thick Au layer (mean diameter of Au nanoparticles ~10 nm) and exceeds the nanoribbon yield obtained in catalyst-free synthesis by almost 50 times. The mean lengths and thicknesses of the Bi2Se3 nanoribbons are directly proportional to the mean diameters of Au catalyst nanoparticles. In contrast, the me…