showing 36 of ~574560 from 574555 documents
Enhanced modulation strategy for 7-level voltage waveform in asymmetrical 5-level Cascaded H-Bridge Inverters
2022
The CHBMI performance optimization can be reached both with hardware and software solutions. Generally, asymmetrical configurations allow the extension of the voltage levels number and the implementation of an innovative modulation strategy allows for improving the performance in terms of harmonic distortion and conversion efficiency. This work is devoted to the development of a modulation strategy that allows improving the performance of an asymmetrical single-phase five-level Cascaded H-Bridge Inverter generating a 7-level voltage waveform. Thus, a digital approach and corresponding digital functions are presented. Subsequently, the impact of the dead time and the influence on the voltage…
Juego y exploración del entorno en Educación Infantil
2022
El presente capítulo se ubica dentro de un proyecto más amplio donde, desde una orientación investigadora de corte cualitativo, tratamos de explorar y comprender cómo se generan experiencias de aprendizaje relevantes en aula de educación infantil a través de proyectos y propuestas que resultan significativas para los infantes This chapter is located within a broader project where, from a qualitative research orientation, we try to explore and understand how relevant learning experiences are generated in the early childhood education classroom through projects and proposals that are significant for infants. El estudio que se presenta se desarrolla en dos aulas del tercer nivel del segundo ci…
Hybrid Work: Gen Z Expectations and Internal Employer Branding Implications
2022
Gen Z – also known as ‘Generation Z’ or ‘iGeneration’ born between 1997 and 2009 – has been hit the hardest by the pandemic and remote work. Whilst the global workforce will include nearly 27% of Gen Z by 2025, it appears essential to address their needs and preferences. This chapter provides new Gen Z white-collar workers’ insights hitherto scarce in research – comparably to those of Gen Z students – to help understand how to motivate, engage, and develop them. In particular, Gen Z's values and expectations for hybrid work emerge from 15 qualitative online interviews leveraged to advance recommendations to enhance internal employer branding – that is branding intended for the organisation’…
Test-Retest Reliability of Task Performance for Golf Swings of Medium- to High-Handicap Players
2022
Background: Golf swing performance in medium- to high-handicap players must be reliably measured to use this variable in both research studies and in applied settings. Nevertheless, there are no studies published on this topic and test–retest evidence is only available for low-handicap players. The aim of this study was to determine the number of attempts necessary to obtain a reliable measurement protocol for swing performance variables in medium- to high-handicap players. Methods: Ten amateur players (55.67 (13.64) years, 78.4 (11.4) kg, 1.75 (7.95) m) took part in a test–retest study in two experimental sessions one week apart. In each one, fifteen swings with a six iron and a driver wer…
Design and Validation of a Dynamic Inductive Power Transfer System for EV Battery Charging
2022
In this paper, a Dynamic Resonant Inductive Power Transfer (DRIPT) System for the Electric Vehicle (EV) battery charging is proposed. In particular, the aim of the work is the general design of the whole system and its validation, with particular attention to the power electronic converters and their control. For the transmitter side, a DC/AC converter is used. It is controlled through the phase-shift technique and supervised by a Zero Phase Angle detection algorithm to ensure the maximum power transfer. For the receiver side, a double conversion stage, consisting of a diode rectifier and a controlled buck converter, is provided. The system is then simulated to verify its proper design.
Unpacking social innovation by nonstate service providers in the challenging social work practice
2022
Nonstate service providers in the form of nongovernmental organizations (NGOs) play an important role in the delivery of social services and the development of social work practice, in particular in fragile and conflict-affected countries. In such challenging settings, NGOs also mobilize various resources, implement novel activities or service delivery models that may induce the development of social innovation; however, such perspectives have been overlooked in the social work literature. This study outlines a framework for understanding how social innovation generates by nonstate service providers in a challenging social work context. By analyzing 15 interviews from Bosnia and Herzegovina…
RNA-Binding Proteins as Epigenetic Regulators of Brain Functions and Their Involvement in Neurodegeneration.
2022
A central aspect of nervous system development and function is the post-transcriptional regulation of mRNA fate, which implies time- and site-dependent translation, in response to cues originating from cell-to-cell crosstalk. Such events are fundamental for the establishment of brain cell asymmetry, as well as of long-lasting modifications of synapses (long-term potentiation: LTP), responsible for learning, memory, and higher cognitive functions. Post-transcriptional regulation is in turn dependent on RNA-binding proteins that, by recognizing and binding brief RNA sequences, base modifications, or secondary/tertiary structures, are able to control maturation, localization, stability, and tr…
Comparison of validation protocols for blood pressure measuring devices in children and adolescents
2022
Accuracy of blood pressure (BP) measurement is important for the evaluation of hypertension in children and adolescents, and it is critically dependent upon the accuracy of the BP measuring device. A device that could pass validated protocols with reliable accuracy would be desirable in clinical and research settings. Several scientific organizations have published recommendations on the validation of different BP measuring devices. Most of them focus on adults but separate recommendations and validation criteria for BP devices intended for use in children and adolescents are included in some validation protocols. In this review, we compare the validation criteria for BP measuring devices a…
Hierarchical Analysis of Forms of Support for Employees in the Field of Health Protection and Quality of Work during the COVID-19 Pandemic and the De…
2022
Issues of employee support during the COVID-19 pandemic and the post-pandemic period are of an interdisciplinary nature. Moreover, these should be considered from both an epistemological and a practical perspective. The aim of this study was to determine what forms of support for employees in terms of health and quality of work were provided by employers during the pandemic and what forms of support will be expected by employees after it ceases. The research process was carried out in two stages: primary and secondary exploration and quantitative clarification. In the first stage, a systematic review of the literature and a critical analysis of the so-called grey literature was performed. I…
A cross-country configurational approach to international academic mobility: exploring mobility effects on academics’ career progression in EU countr…
2022
This study takes a novel perspective on mobility as career script compliance to explore the factors that might influence how mobile academics in a country perceive the impact of international mobility on their overall academic career progression and job options. We conduct a country-level qualitative comparative analysis on a sample of 24 European Union (EU) countries, based on data from European Commission’s MORE3 indicator tool. We find that these perceptions about the impact are shaped by the dominant patterns of mobility in that country, and the general perception of academics in that particular country that international mobility is rewarded in the institutional promotion schemes. This…
Revising the stretch reflex threshold method to measure stretch hyperreflexia in cerebral palsy
2022
Funding Information: This work was supported by the Olvi Foundation, Research Foundation of Cerebral Palsy Alliance (PHD00321), Finnish Cultural Foundation, University of Jyväskylä, Academy of Finland (grants #296240, #307250, #327288, #311877, #326988), including “Brain changes across the life-span” profiling funding to University of Jyväskylä, Jane and Aatos Erkko Foundation (#602.274), and the Netherlands Organization for Scientific Research (NWO-016.186.144). Ministry of Education and Culture (OKM/28/626/2022). Hyper-resistance is an increased resistance to passive muscle stretch, a common feature in neurological disorders. Stretch hyperreflexia, an exaggerated stretch reflex response, …
Progression Free Survival, Overall Survival, and Relapse Rate in Endometrioid Ovarian Cancer and Synchronous Endometrial-Ovarian Endometrioid Cancer …
2022
Background and Objectives: We aimed to evaluate Progression Free Survival (PFS), Overall Survival (OS), and relapse rate in women affected by endometrioid ovarian cancer and synchronous endometrial-ovarian endometrioid cancer (SEO-EC). As secondary outcome, we assessed whether systematic pelvic and para-aortic lymphadenectomy could be considered a determinant of relapse rate in this population. Materials and Methods: We performed a retrospective analysis of women with diagnosis of endometrioid ovarian cancer or SEO-EC between January 2010 to September 2020, and calculated PFS, OS and relapse rate. Results: In almost all the patients (97.6%) who underwent systematic pelvic and para-aortic ly…
Construcción de la Identidad y autonomía en Educación Infantil
2022
El estudio que se presenta analiza la relevancia del ambiente de aprendizaje para fomentar la construcción de la identidad y la autonomía en educación Infantil desde el análisis de diferentes microespacios de aula. Este capítulo se inserta en un Proyecto más amplio de corte cualitativo (Angrosino, 2012) que investiga como el diseño y la creación de espacios por parte del docente en el aula de Infantil facilita el desarrollo de la autonomía y el crecimiento de la Infancia en armonía. The study that is presented analyzes the relevance of the learning environment to promote the construction of identity and autonomy in Early Childhood Education from the analysis of different classroom microspac…
Highly Compact Partial Power Converter for a Highly Efficient PV-BESS Stacked Generation System
2022
The inherently intermittent nature of photovoltaic (PV) energy has brought increasing interest towards the integration between PV sources and Battery Energy Storage Systems (BESS). In this paper, a Series Partial Power Processing (PPP) converter based on Capacitive Power Transfer (CPT) is proposed to integrate PV and BESS in a grid-connected inverter system. The proposed converter has been simulated according to a PV string capable to provide 1430 W under full irradiance conditions, a BESS nominal voltage equal to 215 V and a solar inverter assumed to operate with a minimum voltage of 150 V and a maximum current of 10 A. Simulation tests carried out at different conditions of solar radiatio…
Smart-City Citizen Engagement: The Answer to Energy Savings in an Economic Crisis?
2022
As the populations of cities grow, it is obvious that they need more and more resources. Energy is currently one of the most desirable resources due to the economic and energy crisis, but it needs to be used in a sustainable manner. There are cities that achieve smart city (SC) status that provide smart policies towards sustainable development. The aim of the present paper is to determine whether citizen engagement in SC can contribute to reduced energy consumption in the current economic crisis. The paper presents an original survey intended to collect primary data and a study conducted based exclusively on qualitative methods. The results concern a broad and multifaceted review of literat…
Bioaccumulation of Trace Elements from Aqueous Solutions by Selected Terrestrial Moss Species
2022
The interrelationship between metal concentrations in mosses and their surroundings prompts research toward examining their accumulation properties, as it is particularly important for their usage in biomonitoring studies that use mosses. In this study, the kinetics of elemental sorption in three moss species (Pleurozium schreberi, Dicranum polysetum, and Sphagnum fallax) were investigated under laboratory conditions. Sorption from metal salt solutions was carried out under static conditions with decreasing elemental concentration. Functional groups responsible for binding metal cations to the internal structures of the mosses were also identified. It was shown that the equilibrium state wa…
Abnormal jugular valves are not the sole explanation of an impaired outflow from the cranial cavity through the internal jugular veins: results of in…
2022
Background. Currently, pathological jugular valves are thought to be the main cause of altered hemodynamics in the internal jugular veins, the so-called chronic cerebrospinal venous insufficiency. The alternative interpretation of flow disturbances in these veins is that the main source of abnormal outflow are nozzle-like strictures in their upper parts, at the level or just below the jugular foramen, for example, caused by an enlarged transverse process of the atlas and/or styloid process of the temporal bone.1 These in silico studies were aimed at validation of this hypothesis.
 Methods. With the use of computational fluid mechanics software: the Flowsquare+ and the COMSOL multiphysi…
Impact of COVID-19 Pandemic on Disease Control Status and Quality of Life of Patients with Acromegaly.
2022
Background and Objectives: Despite the best efforts of healthcare workers and the deployment of alternative healthcare delivery solutions through telemedicine, the pandemic has disrupted standard care for patients with chronic conditions. The long-lasting pandemic has also had a profound impact on the quality of life (QoL) of the majority of patients with chronic illnesses. The management of rare diseases has been particularly challenging. We aimed to evaluate the impacts that the long-lasting pandemic had on the disease control status and QoL in patients with acromegaly. Materials and Methods: Our prospective study included 34 patients from a national referral centre. The baseline SAGIT an…
Fotovoz como metodología innovadora en educación superior
2022
La adaptación al EEES ha exigido el surgimiento de metodologías activas adscritas a la educación, siendo fotovoz clave en diferentes niveles educativos. Sin embargo, la investigación en el contexto educativo, y en concreto en el de Educación Superior, es escaso. Por tanto, el objetivo de este trabajo es analizar el uso de fotovoz en educación superior, a través de una revisión sistemática basada en la Declaración PRISMA 2020 en tres bases de datos. Quince de los 408 estudios identificados cumplieron con los criterios de inclusión. Los resultados posicionan Fotovoz como una alternativa educativa con potencial en entornos de Educación Superior. The adaptation to the EHEA has demanded the emer…
Tactics of invisibility : How people in vulnerable positions make datafied everyday life livable
2022
Various data platforms force the individual into constant presence and visibility. However, the ways in which datafied environments relate to experienced vulnerabilities in our everyday lives remain unclear. Through diaries produced by and interviews with participants from three groups who occupy presumably vulnerable positions and who currently live in Finland, we explore the ways in which people challenge expectations and prior assumptions related to forced visibility. Using the concept of tactics developed by de Certeau, we aim to understand how individuals make everyday surveillance culture livable through what we call tactics of invisibility. Based on our analysis, we identify three k…
Predicting acute termination and non-termination during ablation of human atrial fibrillation using quantitative indices
2022
Background: Termination of atrial fibrillation (AF), the most common arrhythmia in the United States, during catheter ablation is an attractive procedural endpoint, which has been associated with improved long-term outcome in some studies. It is not clear, however, whether it is possible to predict termination using clinical data. We developed and applied three quantitative indices in global multielectrode recordings of AF prior to ablation: average dominant frequency (ADF), spectral power index (SPI), and electrogram quality index (EQI).Methods: In N = 42 persistent AF patients (65 ± 9 years, 14% female) we collected unipolar electrograms from 64-pole baskets (Abbott, CA). We studied N = 1…
Novel high-performance QCA Fredkin gate and designing scalable QCA binary to gray and vice versa
2022
AbstractIn the design of digital logic circuits, QCA technology is an excellent alternative to CMOS technology. Its advantages over CMOS include low power consumption, fast circuit switching, and nanoscale design. Circuits that convert data between different formats are code converters. Code converters have an essential role in high-performance computing and signal processing. In this paper, first, we proposed a novel QCA structure for the quantum reversible Fredkin gate. Second, we proposed 4-bit and 8-bit QCA binary-to-gray converter and vice versa. For the second proposal, both reversible and irreversible structures are suggested. The proposed structures are scalable up to N bits. To cha…
Long-Term Stability of TiS2–Alkylamine Hybrid Materials
2022
Layered TiS2 intercalated with linear alkylamines has recently attracted significant interest as a model compound for flexible n-type thermoelectric applications, showing remarkably high power factors at room temperature. The thermal and, particularly, environmental stability of such materials is, however, a still an open challenge. In this paper, we show that amine-intercalated TiS2 prepared by a simple mechanochemical process is prone to chemical decomposition through sulfur exsolution, and that the presence of molecular oxygen is likely to mediate the decomposition reaction. Through computational analysis of the possible reaction pathways, we propose that Ti-N adducts are formed as a con…
Blessed Be the Fruit: Santa Brígida y las resignificaciones religiosas en el referéndum sobre el aborto en Irlanda
2022
La fotografía de Olivia Harris, Blessed Be the Fruit, muestra a santa Brígida de Kildare, patrona de Irlanda, sujetando una pancarta en apoyo a la derogación de la Octava Enmienda de la Constitución de dicho país. Esta performance se inscribe en el clima previo al referéndum que tuvo lugar en 2018 en la República de Irlanda para decidir si se revocaba la ley que prohibía la interrupción voluntaria del embarazo. Esta fotografía y otras manifestaciones artísticas constituyen la base para realizar un estudio sobre la identidad nacional de Irlanda y sobre la figura de santa Brígida, personaje doblemente resignificado: primero por la apropiación del cristianismo, luego por el activismo feminista…
Editorial: Interrogating the design of smart, sustainable, and socially just urban spaces: A look at institutions, places, and values
2022
The article is the Editorial on the Research Topic Interrogating the design of smart, sustainable, and socially just urban spaces: A look at institutions, places, and values, which explore the dynamics between the socio-technological processes – value-based design being foremost among them – through which urban space emerges and takes on meaning. Furthermore, they engage with the question of how institutional design principles shape citizen participation in these processes.
Cyclo- and Polyphosphazenes for Biomedical Applications
2022
Cyclic and polyphosphazenes are extremely interesting and versatile substrates characterized by the presence of -P=N- repeating units. The chlorine atoms on the P atoms in the starting materials can be easily substituted with a variety of organic substituents, thus giving rise to a huge number of new materials for industrial applications. Their properties can be designed considering the number of repetitive units and the nature of the substituent groups, opening up to a number of peculiar properties, including the ability to give rise to supramolecular arrangements. We focused our attention on the extensive scientific literature concerning their biomedical applications: as antimicrobial age…
AI for Resource Allocation and Resource Allocation for AI: a two-fold paradigm at the network edge
2022
5G-and-beyond and Internet of Things (IoT) technologies are pushing a shift from the classic cloud-centric view of the network to a new edge-centric vision. In such a perspective, the computation, communication and storage resources are moved closer to the user, to the benefit of network responsiveness/latency, and of an improved context-awareness, that is, the ability to tailor the network services to the live user's experience. However, these improvements do not come for free: edge networks are highly constrained, and do not match the resource abundance of their cloud counterparts. In such a perspective, the proper management of the few available resources is of crucial importance to impr…
Deep Talk: A Dialogic Instruction Method for Enhancing the Sense of Belonging
2022
In this study, we investigate Deep Talk, which is a method used in the context of early years education in Finland. The method is based on multisensory storytelling and clear phases. The method has received positive feedback from educators and children, but no prior research has been conducted on it. This data aims to determine the significant elements of the method for the individual child and the children in a group. The data consisted of 25 narrations of educators who participated in Deep Talk training and had been serving as Deep Talk instructors. The data were analyzed using a data- and theory-driven qualitative content analysis through the dialogical process of the research team. The …
Neuropsychiatric Disorders in Covid-19 - Symptoms of Infection or A New Disease Entity Triggered by Infection?
2022
Correction to: Female-driven social entrepreneurship in service business
2022
The United Nations has stated that to meet the 17 Sustainable Development Goals of the 2030 Agenda, analysis of the development and impact of women entrepreneurship is needed. Based on data from the Web of Science, an initial analysis of research on both women entrepreneurship and social entrepreneurship was performed. Although the frst published article date back to 2004, it was not until 2014 when scholars began to study women social entrepreneurship more systematically. This special issue covers these two areas in conjunction, with an added emphasis on service business.
La ejemplaridad de la muerte y la inmortalidad del saber en la literatura sapiencial medieval
2022
El origen escriturario de la muerte como castigo es el punto de partida de su ejemplaridad que, basada en presupuestos teológicos, le imprimió un halo de penitencia, que se perfila en todos los órdenes de actuación y convivencia del ser humano, en aras de conseguir el perdón y retornar a la gracia divina. En este trabajo se analizan los diferentes motivos que proyectan la ejemplaridad de la muerte en el ámbito de la literatura sapiencial: muerte física y muerte espiritual; trascendencia y sentencia del alma; el hecho maravilloso (milagros, premoniciones, relevaciones o visiones); el miedo (y lo macabro) ligado al arquetipo de la muerte transida y sus plasmaciones en variados tópicos (mement…
Measurement and analysis of maxillary anterior teeth color in the chinese population
2022
Abstract Objective To measure the difference in the crown color of the maxillary anterior teeth in the Chinese population, to study its potential regularity, and to provide a reference for the colorimetry of oral anterior teeth restoration. Method Use VITA Easyshade Advance4.0 spectrophotometer to measure the color of 1/3 of maxillary anterior crowns in different age groups, use CIE-1976-L*a*b* color system to describe the color, use Spss26.0 software Statistical analysis was performed to obtain the trend of the color change of maxillary anterior teeth. Conclusion: 1. The color of the labial crown of maxillary anterior teeth in the Chinese population is related to different age groups and t…
Measurements of Differential Cross Sections of Inclusive $\pi^0$ and $K^0_S$ Production in $e^{+}e^{-}$ Annihilation at Energies from 2.2324 to 3.671…
2022
Based on electron positron collision data collected with the BESIII detector operating at the BEPCII storage rings, the differential cross sections of inclusive $\pi^0$ and $K^0_S$ production as a function of hadron momentum, normalized by the total cross section of the $e^{+}e^{-} \to$ hadrons process, are measured at six center-of-mass energies from 2.2324 to 3.6710 GeV. Our results with a relative hadron energy coverage from 0.1 to 0.9 significantly deviate from several theoretical calculations based on existing fragmentation functions, especially at lower energies.
Buccal Thin Films as Potent Permeation Enhancers for Cytisine Transbuccal Delivery
2022
Cytisine (CYT) is a powerful anti-smoking compound which could greatly benefit from transbuccal delivery because of both its unfavorable pharmacokinetics after oral administration and its intrinsic ability to permeate the buccal mucosa. This work aims to design CYT-loaded buccal thin films suitable for transbuccal drug delivery due to its capability of promoting the interaction between CYT and the buccal membrane. The solvent casting method was employed to prepare several thin films combining various excipients such as matrixing polymers, mucoadhesion agents, plasticizers and other compounds as humectants and sweeteners, component ratios and solvents. A total of 36 compositions was prepared…
Evaluation of the Oral Microcirculation in Patients Undergoing Anti COVID-19 Vaccination: A Preliminary Study
2022
Videocapillaroscopy allows the study of both the morphological and architectural structure of the microcirculation and its hemodynamic conditions; these parameters are directly involved in autoimmune and/or inflammatory pathologies. The purpose of this research, based on capillaroscopy, is to establish whether a patient who receives an anti-COVID 19 vaccine has any changes in their oral microcirculation. A complete capillaroscopic mapping of the oral cavity of the subjects examined was made; the investigated mucosa sites were the following: cheek, labial, chewing-gingival and back of the tongue. This study showed an increase in capillary density from the comparison between the mean labial c…
Photocatalytic Functionalization of Dihydroquinoxalin‐2‐Ones with Pyrazolones
2022
A visible-light photoredox functionalization of 3,4-dihydro-quinoxalin-2-ones with pyrazolones using an inexpensive organophotoredox catalyst is described. The reaction uses 9,10-phenanthrenedione as photocatalyst, a very simple and cheap photocatalyst, a HP single Blue LED (455 nm) as visible-light source and oxygen from air as terminal oxidant, obtaining the corresponding acetylated pyrazoles with good yields. The reaction can be extended to other nitrogen heterocycles such as 5-aminopyrazoles with good results.