Miracle-dz/UniFAR-FTUs huggingface dataset:
Dielectric Characterization of Impregnating Varnishes for Inverter-Fed Motors

Fast switching converters cause increased electrical stresses on the insulation of rotating machines. Within this context one of the roles of impregnating varnishes/resins is to guarantee high partial discharge inception voltages (PDIV). Most of the resins operate in the plasto-viscous region (above their glass-transition temperature) where large permittivity values can be expected. Field enhancement in the air surrunding such materials may be expected, possibily reducing the PDIV level. Here the value of the resin permittivity and its impact on the PDIV of impregnated samples of turn-turn insulation have been investigated as a function of temperature. The results indicate that PDIV depends mostly on the coating properties of the resin. Permittivity seems to affect PDIV to a lesser extent, but results are entangled with the thermal expansion of the resin, making definitive evaluations very difficult.
Error-Free 100Gbps PAM-4 Transmission Over 100m OM5 MMF using 1060nm VCSELs

We experimentally demonstrate error-free (BER <10−12) rates beyond 100Gbps over 100m OM5 using unpackaged 1060nm VCSELs. Power penalties of PAM-2/PAM-4 are examined demonstrating OM5 fiber capacity to support wavelengths to 1060nm with only transmitter equalization.
Rotor-stator rim seal analysis in one stage gas turbine Part I:Ingestion and seal

Gas Turbine rotor stator rim seal problem was studied by using experimental and CFD method based on a one stage turbine model. Part one focused on the mechanism of ingestion and distribution of ingested flow in rotor stator cavity. The results showed that the non-uniform pressure distribution of annulus flow is the main factor cause hot gas ingestion. The cavity can be well sealed when the pressure in it is higher than that of annulus flow, otherwise the ingestion happens. The tangential velocity of main flow will enhance the ingestion process. The mixing process between sealing flow and ingestion flow happens near the seal clearance and then goes into the lower location of the cavity by the entrainment effect induced by rotor disc. All these factors should be considered and well organized when new and highly efficient rim seal structure is designed.
Global Principles for Professional Learning in Gifted Education and Italian Primary Teachers

Aligned with the 10 Global Principles for Professional Learning in Gifted Education (WCGTC, 2021), this exploratory study investigated the co-construction of inclusive differentiated instruction for a fourth grade gifted student with three general education teachers in a North Italy public education primary school using learning menus and learning contract strategies. The research questions examined responses of general education teachers toward (a) an identified gifted student, (b) inclusion practices in the primary classroom, and (c) co-constructed interdisciplinary curricula for a gifted student. Conducted during a six-week timeframe, the primary researcher conducted Pre- and Post-Intervention Focus Groups, established an instructional baseline, planned interdisciplinary activities in five academic subjects, suggested lesson extensions, and concluded with a Parent Interview. The primary researcher provided professional learning experiences in accordance with the Italian Ministry of Education ministerial law n. 562 (2019) that mandated inclusion of children with giftedness in the category of special education needs. Analysis of Pre- and Post-Intervention Focus Groups results indicated improved dispositions of teachers toward a gifted student in general education primary classrooms, development of inclusive classroom practices with guidance from a gifted education specialist, and documented competencies co-constructing interdisciplinary curricula integrated with 10 Global Principles for Professional Learning in Gifted Education.
Three‐dimensional volume rendering planning, surgical treatment, and clinical outcomes for femoral and tibial detorsional osteotomies in dogs

Abstract Objectives To describe a computed tomographic (CT) methodology for planning the correction of femoral and tibial torsion and report the clinical outcomes after femoral (FDO) and tibial (TDO) detorsional osteotomy in dogs affected by torsion malalignment and patellar luxation (PL). Study design Multicenter retrospective study. Animals Eighteen client‐owned dogs. Methods Dogs underwent CT to measure femoral (FTA) and tibial torsion angle (TTA). Abnormal femoral external torsion was defined when FTA <20°, abnormal femoral internal torsion if FTA >35°; abnormal tibial external torsion was defined when TTA < −10°, and abnormal tibial internal torsion when TTA >2°. The cortical arch length (CAL) was measured with CT and used intraoperatively to determine the magnitude of correction. The medical records and radiographs were reviewed and used to report clinical and radiographic outcomes. Radiographs were reviewed to evaluate postoperative limb alignment, patellar position, and bone healing. Results Twenty‐two detorsional osteotomies were performed. Mean preoperative FTA was 14° for medial‐PL and 45.2° for lateral‐PL. Mean preoperative TTA was 11° for medial‐PL. Physiological patellar tracking was restored in 22/22 of cases. CAL measurement allowed for correction of abnormal torsion in 19/22 of cases. Seventeen out 18 dogs had full or acceptable functional outcome. The median radiographic follow‐up was 3 months. Major complications occurred in 2/22 cases, which suffered an iatrogenic abnormal femoral internal torsion and a persistent hindlimb lameness. Conclusions CAL can be measured with CT and used intraoperatively to guide the correction of abnormal torsion in dogs. Clinical relevance Abnormal femoral and tibial torsion are predisposing factors for PL. A higher complication rate is expected when FDO and TDO are performed in the same hindlimb.
Autonomous Cooperative Vehicle Coordination at Road Intersections

Appropriate traffic coordination at road intersections plays a crucial part in modern intelligent transportation systems (ITS). In this paper, we first try to extend the traditional single collision-set (CS) coordination strategy to multiple-collision-set strategies, by which the traffic throughput can be significantly improved. Unlike the existing centralized coordination methods, two low complexity coordination methods are proposed based on the multi-agents Q-learning frameworks. Numerical results show that, the proposed high throughput strategies are able to provide safe and efficient traffic coordination. Meanwhile, since only local information is required, the coordination complexity can be reduced, which is attractive in highly dynamic real time scenarios.
Mapping Marine Traffic Density by Using AIS Data: An Application in the Northern Aegean Sea

Abstract Automatic Identification System (AIS) data is used for monitoring the movements of vessels live movements through instant transmission of vessel information while, at the same time, historical AIS data is used for marine traffic analysis by researchers. There are several methods and computer programs developed for the analysis of marine traffic by the use of AIS data. Combining the intersection algorithm proposed by Antonio (1992) and distance calculation method, this study develops a method to analyse vessel distribution on a selected cross sectional line (SCS) in the Northern Aegean Sea. As a complementary to the new methods proposed, a desktop application is developed in C# programming language to visualize the vessel distribution on the SCS line. SQL server is used for AIS data storage and analysis. The study is conducted over 7-day AIS data, specifically 2.382. 469 rows and 42.884. 442 data in total, belonging to the Northern Aegean Sea marine traffic. As a result, the mapping of the movements of different types of vessels in the Northern Aegean Sea is effectively performed and Frequency-Distance, Draught-Distance, SOG-Distance, SOG-COG distributions on the SCS line are successfully analysed by the new method introduced.
Parasocial relationships of Gen Z consumers with social media influencers

In a marketing environment where consumers trust each other far more than they trust companies’ marketing communications, social media influencers have become important mediators in consumer decision making, particularly for younger consumers. A social media influencer is an opinion leader or tastemaker in one or more areas of consumption, who has a considerable following in social media. Previous research has revealed that when consumers form a one-sided relationship that has an illusion of intimacy with the influencer – a parasocial relationship - they are more likely to be influenced by them in their purchasing decisions. The purpose of this study is to identify and analyze the nature and types of parasocial relationships formed between consumers and influencers on social media. This purpose is addressed through an interpretive, qualitative study (n = 29) of Gen Z consumers who can be considered as “social media natives”. The findings contribute to an in-depth understanding of how consumers form relationships with influencers and what these relationships mean to consumers in their daily lives.
Does tertiarisation lead to secular stagnation? A Kaldorian-Baumolian analysis across eight developed economies.

This study examines the impact of tertiarisation on labour productivity growth in eight developed economies from a Kaldorian-Baumolian perspective, going back to the late 1970s. Given that the literature has normally applied the shift-share analysis to estimate the impact of structural change, we develop a novel decomposition formula that corrects the main flaws of the conventional shift-share analysis and satisfactorily integrates both Kaldorian and Baumolian assumptions. Firstly, our decomposition does not assume that returns to scale are homogeneous across industries, but it rather incorporates the Verdoorn coefficients that we previously estimate using system GMM. This leads us to identify an additional effect of structural change that depends on the reallocation of labour that takes place across industries with heterogeneous Verdoorn coefficients. Secondly, our formula also includes the asymptotic Baumolian effects into a framework that considers productivity growth as endogenously determined by demand. This allows us to assess not only the average impact of structural change over a period, but also whether tertiarisation leads to a gradual decrease in the productivity growth rate. Our results show that only three countries (the USA, the UK and the Netherlands) exhibit, on average, a negative impact of structural change. To a large extent, this negative impact is linked to a reallocation of labour towards industries with low returns to scale. However, the cumulative changes that take place in terms of the nominal value added and employment shares lead to a gradual decrease in the contribution of structural change in seven of the eight economies. We also find that these Baumolian effects do not only increasingly slow down the actual productivity growth rate, but also the counterfactual productivity growth that could be achieved with a structural change that worked in favour of industries with high returns to scale.
STRENGTHS-BASED NURSING AND HEALTHCARE: PERCEPTION OF WOMEN IN A USUAL RISK MATERNITY HOSPITAL

Objective: to present the perception of women hospitalized in a maternity hospital regarding the nursing care received, with the theoretical reference Strengths-Based Nursing and Healthcare, by Laurie Gottlieb. Method: exploratory study with a qualitative approach. Twenty puerperal women hospitalized in the period from November to December 2019, in a usual risk maternity hospital in Curitiba-PR, Brazil, were interviewed. Data were transcribed and categorized, using MaxQDA®2020 software, and content analysis was performed, according to Creswell’s steps. Results: two categories were established: “absence of elements of the theoretical framework”; and “presence of elements of the theoretical framework”. Conclusion: the theoretical framework was perceived by women in the care they received; they benefited from this model, understanding their active role in the delivery process. Developing this theoretical framework in usual-risk maternity hospitals and in other care realities is a window of opportunity for the development of nurses’ work.
Correlation Between Perceived Stress, Sense of Entrapment, and Irrational Beliefs of Mothers Parenting Mentally-Ill Children: A Descriptive-Correlational Study

Objectives: Evidence shows that mothers are influenced by their children more greatly than other family members since child’s needs are more often satisfied by mothers. This study explored the correlation between perceived stress, a sense of entrapment, and irrational beliefs in mothers parenting children with mental disorders. Materials and Methods: In this descriptive-correlational study, 194 mothers who have a child with mental disorders were selected from Tehran hospitals, Iran during 2018. Data were collected with Cohen and colleagues’ Perceived Stress Scale, Jones’ Irrational Beliefs Scale, Gilbert & Allan’s Entrapment Scale, and demographics questionnaire. Results: The findings showed that the mean perceived stress was 29.26 ± 4.62, the mean sense of entrapment of participating mothers was moderate (external entrapment, 11.12 ± 8.16, and internal entrapment, 12.23 ± 10.05), and the mean irrational beliefs was above the moderate level (114.58 ± 22.5). There was a significant correlation between perceived stress and sense of entrapment (p = 0.003, r = 0.214) and between sense of entrapment and mothers’ irrational beliefs (p < 0.001, r = 0.573); yet, there was no significant correlation between perceived stress and mothers’ irrational beliefs (p = 0.738, r = 0.025). Conclusions: Based on our findings, it may be concluded that given the importance of mental health of mothers parenting children with mental disorders, development of educational programs, referral to supportive foundations, and training of healthcare personnel for clarifying the situation and its present challenges are necessary for this group of mothers leading to the promotion of their health and the related factors.
Optimized Microgrid Protection Considering Different Topologies Based on N-1 Contingency by Dual Setting Directional Overcurrent Relays

The deployment of microgrids (MGs) and smart grids to maximize the benefits from distributed generations (DGs) has increased. Although the MG framework and concept improve system flexibility and reliability, new challenges corresponding to the MG protection system appear compared to conventional passive distribution networks. The adaptive protection schemes, which have been reported to consider various topologies in MG protection, need communication infrastructure. Also, the failure of telecommunication systems and cyber-attacks has drawn attention to unrelated protection schemes using local measurements, taking into account different topologies and related selectivity constraints. The literature shows a research gap in the development of local measurement-based protection schemes considering different operating modes and network configurations due to the unavailability of upstream substations, DGs, and other MGs sub-systems such as lines. This research attempts to fill this research gap by proposing a new protection scheme using dual setting directional overcurrent relays (DS-DOCRs) based on N-1 contingency topologies. The introduced method is applied to the distribution portion of the IEEE 30-bus test system. The Genetic Algorithm (GA) has been selected as the optimization algorithm, which is implemented in MATLAB, and the power system analyses are done in DIgSILENT. The test results show the advantages of the proposed method compared to the existing designs, only considering the limited operation modes. The test results indicate that mis-coordination for the N-1 contingency-based topologies does not appear using the proposed method.
THE EFFECT OF THE PANDEMIC ON THE CARE OF PATIENTS THE OPERATOR

SUMMARY Background: The Covid-19 Pandemic has had a significant impact on psychophysical well-being and the ability to work productively in contexts concern (cid:76)(cid:81)(cid:74)(cid:3)(cid:83)(cid:72)(cid:82)(cid:83)(cid:79)(cid:72)(cid:182)(cid:86)(cid:3) physical and mental care. The helping professions involved have seen an increase in stress levels, a sense of helplessness, fear, pain and social isolation. They are anchored to the hope of being able to return to their normality. Method: In this study, 87 mental health operators were evaluated, divided into nurses, psychiatric rehabilitation technicians, educators, social workers, psychologists and doctors, working in two psychiatric care rehabilitation communities in Puglia and Campania in southern Italy. Results: The results obtained with the administration of the scales ProQOL, BHS, Save-9, BDI-II, BEES reported a remarkable impact in nursing and medical professions due to the pandemic. A 11%. burn-out was reported by nurses. Conclusions: The collected data are comparable to the previous work (Franza et al. 2015, 2020); however, there is no evidence of a high level of burnout in the helping professions involved in this study.
The role of values in road safety culture: Are motorcycle riders’ higher accident risk a result of their appreciation of freedom to take risk?

Focus on paternalistic values versus individual freedom is a fundamental theme, which defines the status of road safety in different settings. The present study examines the role of values related to freedom to take risk in traffic in road safety culture (RSC) based on survey data from car drivers and (n=882) motorcycle riders (n=330) from two countries with distinctly different road safety records: Norway, which had the lowest road mortality rate in Europe with 20 road deaths per million inhabitants in 2017, and Greece, which had 69 road deaths per million inhabitants, which was well above the EU average of 50. In line with our first hypothesis, we find that the Greek drivers and riders value freedom to take risk in traffic higher than drivers and riders from Norway. We suggest that this is due to a lower focus on individual freedom to take risk in traffic (and higher acceptance of paternalistic measures) among the Norwegian respondents, as this country has adopted Vision Zero, has the highest road safety level in Europe and presumably the most comprehensive regulations of drivers’ freedom. In line with our second hypothesis, we find that motorcycle riders in both countries value freedom to take risk in traffic significantly higher than car drivers in their country. Regression analyses indicate a relationship between higher valuation of freedom to take risk in traffic and risky rider behaviors, which are related to accident involvement. Our results indicate that values focusing on freedom to take risk have an important role in RSC, presumably legitimizing and motivating risky driving. This is in line with previous research, where riders cite freedom as the main enjoyment factor for riding. Previous studies find six times higher accident risk among riders than drivers, which is explained partly by pointing to risky rider behaviours. risk in and risky rider behaviors, which are related to accident involvement. Although it may be hard to conclude whether motorcycle riders’ higher accident risk than car drivers is a result of their appreciation of freedom to take risk, we see a pattern involving higher valuation of freedom to take risk, and higher levels of risk taking, which is related to higher risk of accidents. Our results indicate that values focusing on freedom to take risk have an important role in RSC, presumably legitimizing and motivating risky driving. Our discussion also indicates that values may have crucial importance in RSC, making them hard to influence in order to improve road safety. We hope that our discussion has pointed to some fruitful ways of approaching this in the future. The present
Acute and subchronic toxicity assessment of the dichloromethane / methanol stem bark extract from Erythrina senegalensis DC (Fabaceae) in Wistar rats

Erythrina senegalensis is a medicinal plant used in sub-Saharan Africa to treat pain, asthenia, inflammation, jaundice, malaria and infections. This work aimed to study the phytochemistry, the acute and subchronic toxicity of the dichloromethane / methanol stem bark extract from E. senegalensis . The phytochemical groups have been characterized in the extract. The content of total polyphenols and flavonoids was determined using the colorimetric methods of Folin-Ciocalteu and aluminum trichloride respectively. Acute toxicity was assessed in NMRI mice and the 28-day subchronic toxicity in Wistar rats by oral gavage. Total polyphenols and flavonoids had a high content in the extract. The DCM / MeOH extract, up to 1200mg / Kg of body weight (bw), did not cause any mortality or modification of the behavior of the treated mice. In the subchronic toxicity study by oral administration of 60 and 120mg / Kg of bw of extract, neither the relative weight nor the biological parameters of renal or hepatic impairment were significantly different from a group treated with the control group (p > 0.05). Anatomopathological examination revealed no signs of toxicity of the extract on the heart, lungs, spleen, liver and kidney. E. senegalensis is rich in polyphenols. The doses administered did not induce any significant toxicity.
Estimates of the prevalence of motor speech disorders in children with idiopathic speech delay

ABSTRACT The goal of this research was to obtain initial estimates of the prevalence of each of four types of motor speech disorders in children with idiopathic Speech Delay (SD) and to use findings to estimate the population-based prevalence of each disorder. Analyses were completed on audio-recorded conversational speech samples from 415 children recruited for research in idiopathic SD in six USA cities during the past three decades. The speech and motor speech status of each participant was cross-classified using standardized measures in the finalized version of the Speech Disorders Classification System described in the Supplement. Population-based prevalence estimates for the four motor speech disorders were calculated from epidemiological studies of SD conducted in Australia, England, and the USA. A total of 82.2% of the 415 participants with SD met criteria for No Motor Speech Disorder at assessment, 12% met criteria for Speech Motor Delay, 3.4% met criteria for Childhood Dysarthria, 2.4% met criteria for Childhood Apraxia of Speech, and 0% met criteria for concurrent Childhood Dysarthria and Childhood Apraxia of Speech. The estimated population-based prevalence of each of the first three motor speech disorders at 4 to 8 years of age were Speech Motor Delay: 4 children per 1,000; Childhood Dysarthria: 1 child per 1,000; and Childhood Apraxia of Speech: 1 child per 1,000. The latter finding cross-validates a prior prevalence estimate for Childhood Apraxia of Speech of 1–2 children per 1,000. Findings are interpreted to indicate a substantial prevalence of motor speech disorders in children with idiopathic SD. Abbreviations: CAS, childhood apraxia of speech; CD, childhood dysarthria; CND, complex neurodevelopmental disorders; DI, dysarthria index; DSI, dysarthria subtype indices; MSD, motor speech disorder; No MSD, no motor speech disorder; NSA, normal(ized) speech acquisition; PEPPER, programs to examine phonetic and phonologic evaluation records; PM, pause marker; PMI, pause marker index; PSD, persistent speech delay; PSE, persistent speech errors; SD, speech delay; SDCS, speech disorders classification system; SDCSS, speech disorders classification system summary; SE, speech errors; SMD, speech motor delay.