Miracle-dz/UniFAR-FTUs huggingface dataset:
PREVALENCE OF BURNOUTIN MEDICALSTUDENTS IN ROMANIA DURING COVID-19 PANDEMIC RESTRICTIONS (PRELIMINARY DATA)

Medical student burnout can cause emotional exhaustion and detachment from educational objectives. The objectives of this study were to evaluate burnout using the Maslach Burnout Inventory-General Survey for Students (MBI-GS(S)) associated with online education and pandemic restrictions. Methods: The MBI-GS (S) was administered to final-year medical students at Romania's most prominent medical faculties from June to July 2021. Descriptive statistics and the internal consistency of the MBI-GS (S) were assessed. In addition, mean MBI-SG (S) subscale scores for burnout were calculated for cynicism (CY), emotional exhaustion (EE), and academic efficacy (AE). Results: 50 medical students completed the online survey, and 42% reported self-perceived burnout. The MBI-GS(S) subscale scores were higher for cynicism (CY) (52%) and low professional efficacy (PE) (60%), and almost half of the students (48%) reported emotional exhaustion (EE). Conclusions: Recent studies have found strong associations between burnout in medical students and disappointment in their studies, fear of inadequate professional training, not having necessary skills to enter medical practice, being less than satisfied with the educational system and social support, optimism, and motivation in pursuing a medical career. We suggest the continuation of burnout studies to overcome the limitations of a cross-sectional research design. In addition, measuring burnout in the medical student population could be extended to all study years and how adequate educational strategies and wellness initiatives could ameliorate burnout.
Homeward Bound? Rural Principal Hiring, Transfer, and Turnover Patterns in Texas

A growing body of literature has recognized that the rural principalship is generally unique from its urban and suburban counterparts in its roles, demands, and expectations (Hansen, 2018; McHenry-Sorber & Hall, 2018; Preston & Barnes, 2017). Research has shown that rural principals have more fluid role definitions, often work with less professional support, and maintain tight networks within the school and community (Cruzeiro & Boone, 2009; Starr & White, 2008; Wieczorek & Manard, 2018). They also face a broadened set of community expectations, with the principalship viewed as a symbolic vanguard of community identity (Harmon & Schafft, 2009), offering less privacy and requiring more public visibility, sociocultural ‘fit,’ and personal responsibility for school (Barley & Beesley, 2007; Budge, 2006; Starr & White, 2008). Networking, limited budgets, professional development, and accountability mandates all present specific challenges due to geographic isolation, smaller staff, and economies of scale (Hite et al., 2018; Klocko & Justis, 2019;
Positive Expressive Writing as a Stress Management Strategy for Japanese Students: Willingness to Engage in Expressive Writing

ABSTRACT Positive expressive writing may improve willingness to engage in expressive writing. An individual, three-day, homework-style experiment was conducted with 42 Japanese undergraduate students who completed a writing task about their feelings regarding a stressful experience. Participants were assigned sequentially to positive, negative, or standard prompt groups. ANOVAs were performed to compare students’ willingness to engage in expressive writing across groups and revealed a relative increase in the positive prompt group’s willingness from baseline to follow-up. In that group, students’ willingness significantly increased from pre-session to post-session. The positive prompt helped maintain higher levels of continued expressive writing and promoted participants’ willingness to engage in expressive writing, causing fewer interruptions during writing sessions. Expressive writing may be an early stress intervention strategy.
Bacterial Profile and Risk Factors Associated with Dental Caries in Enugu Metropolis, Southeast Nigeria

Dental caries is one of the most prevalent and costly diseases that are a challenge to health care providers. There is limited data on the bacterial profile and risks associated with dental caries in Nigeria. The study aimed to isolate and identify bacteria and risk factors associated with dental caries in Enugu. It was a case-controlled study. A total of 336 samples were randomly collected comprising of 125 healthy subjects and 211 patients with dental caries attending various hospitals and dental clinics in Enugu, Nigeria. Samples were subjected to standard microbiological and biochemical techniques. Standardized questionnaires were used to record demographic variables and risk factors. A total of 635 and 254 microorganisms were isolated from carious lesions and healthy subjects respectively. Of these 635 isolates, 218 (34.4%) Gram-positive bacilli, 210 (33.0%) Gram-positive cocci, 46 (7.2%) Gram-negative cocci, and 43 (6.8%) yeasts were recovered. Two hundred and seven samples were (98.1%) polymicrobial while 4 samples (1.9%) were monomicrobial. Among the organisms recovered, anaerobic Lactobacillus spp (141, 66.8%) was the most prevalent followed by Streptococcus mutans (104, 49.2%), and the least were Actinomyces israelii and Capnocytophaga spp (1, 0.05%) respectively. Of the 254 isolates from apparently healthy subjects, Streptococcus sanguis ranked highest and the least was Porphyromonas gingivalis. The factors that were found to be significantly associated with dental caries were level of education P=0.005, feeding habit P= 0.001, Favourite snack P=0.004, sweet consumption P< 0.0001, type of gum P < 0.0001, history of toothache P < 0.0001, visit dentist P< 0.0001, and the bleeding gum P < 0.0001. This research highlighted the polymicrobial nature of carious lesions and associated predictors of dental caries. Hence public enlightenment and the implementation of oral health education in schools are crucial.
PEDESTRIAN ROUTE CHOICES BETWEEN ESCALATOR AND STAIRWAY IN MTR STATIONS

Passenger demands on underground stations are always excessive and can cause severe congestion. The study of pedestrian behavior is particularly important in planning and design of the underground stations during peak hours. This paper reports an investigation on the behavior of pedestrians in choosing between escalators and stairways in Hong Kong Mass Transit Railway (MTR) stations during peak hours. Time-lapse photography surveys were conducted in six selected MTR stations to collect the relevant data. The travel time functions of the vertical pedestrian facilities have been calibrated and are used for developing the pedestrian route choice model. Service levels have been defined for the vertical pedestrian facilities based upon the service levels defined by previous researchers. It was found that the stairway capacities in the ascending and descending directions in the Hong Kong Mass Transit Railway stations are higher than in London Underground stations. It was also found that the pedestrians are more sensitive to the relative delays when using the vertical pedestrian facilities in the descending direction than in the ascending direction.
R&D Investment on Alternative Fuel Vehicles: Insights from a Two-Stage Game Theoretic Model

The R&D on alternative fuel vehicles has gained increasing attention by companies. In this study we develop a two-stage game theoretic model to explore the cooperative and noncooperative R&D activities in alternative fuel vehicles with spillovers. The results provide practical insights into actions that could be considered by regulators and organizations to encourage environmental investments.
Low switching frequency modulation for generalized three-phase multilevel inverters geared toward Grid Codes compliance

In this paper, a generalized three-phase multilevel power inverter (MLI) structure is proposed under asymmetric configurations. The operating mode and the switching combinations are briefly exposed according to the parity of the number of direct current (DC) voltage sources in use. Subsequently, the proposed topology is evaluated in terms of commonly used factors and then benchmarked against some of the state-of the-art cascaded MLIs featuring multiple DC voltage sources (MDCS-CMLIs) while putting emphasis on the reduction of power switching devices. Moreover, a new nearest level control (NLC)-based modulation technique is designed for the purpose of better comply with some quality grid codes, namely the European EN 50160 and the International IEC 61000-2-12. The identification of the optimal control thresholds is realized by a constrained optimization algorithm (e.g., particle swarm optimization (PSO)) which is implemented in python script and validated through SIMULINK fast fourier transform (FFT) analysis tool. Lastly, the harmonic performance of the proposed technique is compared side-by-side with that of the conventional NLC scheme and exhibits significant reduction in harmonic distortion.
The Maz Metasedimentary Series (Western Sierras Pampeanas, Argentina). A relict basin of the Columbia supercontinent?

Abstract The Maz Metasedimentary Series is part of the Maz Complex that crops out in the sierras of Maz and Espinal (Western Sierras Pampeanas) and in the Sierra de Umango (Andean Frontal Cordillera), northwestern Argentina. The Maz Complex is found within a thrust stack of Silurian age, which later underwent open folding. The Maz Metasedimentary Series mainly consists of medium-grade garnet–staurolite–kyanite–sillimanite schists and quartzites, with minor amounts of marble and calc-silicate rocks. Transposed metadacite dykes have been recognized along with amphibolites, metagabbros, metadiorites and orthogneisses. Schist, quartzite and metadacite samples were analysed for SHRIMP U–Pb zircon dating. The Maz Metasedimentary Series is polymetamorphic and records probably three metamorphic events during the Grenvillian orogeny, at c. 1235, 1155 and 1035 Ma, and a younger metamorphism at c. 440–420 Ma resulting from reactivation during the Famatinian orogeny. The sedimentary protoliths were deposited between 1.86 and 1.33–1.26 Ga (the age of the Andean-type Grenvillian magmatism recorded in the Maz Complex), and probably before 1.75 Ga. The main source areas correspond to Palaeoproterozoic and, to a lesser magnitude, Meso-Neoarchaean rocks. The probable depositional age and the detrital zircon age pattern suggest that the Maz Metasedimentary Series was laid down in a basin of the Columbia supercontinent, mainly accreted between 2.1 and 1.8 Ga. The sedimentary sources were diverse, and we hypothesize that deposition took place before Columbia broke up. The Rio Apa block, and the Río de la Plata, Amazonia and proto-Kalahari cratons, which have nearby locations in the palaeogeographic reconstructions, were probably the main blocks that supplied sediments to this basin.
Effects of Void Scale of Coal Accumulation on Methane-Air Flame Propagation and Overpressure Dynamics

ABSTRACT With the coal mining toward depth, there is an increased probability of gas explosion accidents. While the propagation characteristics of gas explosion on account of goaf environment have not been determined yet, which has great significance for the prevention of the goaf fire spreading to working face. This paper investigates the critical void scale of coal piles that allowed for the propagation of gas explosion flames using a closed duct with the dimensions of 100 × 20 × 10 cm. The void ratios of the stacked coals varied in 0.554, 0.521, 0.492, and 0.471. The results show that the increased flame speed in the coal accumulations poses a greater explosion hazard. While the smaller coal particle sizes are more advantageous for the suppression effect on flame velocity. The explosion duration is inversely proportional to the void ratio, which mainly depends on the void diffusion stage and the flame extinction stage. Moreover, the maximum overpressure and (dP/dt)max of the explosions attenuate with the decrease in the void scale. The critical void ratio of coal accumulation is between 0.47 and0.49 for premixed methane-air flame with an equivalence ratio of 1. The irregular coal geometry makes flame quenching easier. The void-scale effect of accumulations on flame propagation should be fully considered in the explosion prevention works.
Multiple microstrip lines on a multilayered cylindrical dielectric substrate on perfectly conducting wedge

The quasi-TEM characteristics of a class of cylindrical microstrip lines are rigorously determined. The class of microstrip lines considered consists of multiple infinitesimally thin strips on a multilayered dielectric substrate on a perfectly conducting wedge. Expressions for the potential distribution inside and outside the dielectric substrate, charge distribution on the strips, and capacitance matrix of the microstrip lines are derived. The problems of a microstrip line on a cylindrically capped wedge and on a cylindrical dielectric substrate on perfectly conducting core are also considered as special cases. Sample numerical results based on the derived expressions are given and discussed. >
COVID-19 Pandemic Impact on Students Intention to Use E-Learning Among Malaysian Higher Education Institutions

In the emergence of pandemic Coronavirus Disease (COVID-19), the delivery of education service becomes a global issue, and many traditional higher education institutes are shifting toward digital alternatives methods. E-learning is considered the most appropriate effective method of knowledge delivery to meet the current academic requirements. This study investigates the key determinants which influence the Intentions to use e-learning among students in higher education institutes in Malaysia due to the outbreak of the novel Covid-19 pandemic. The data were collected through structured questionnaires from students. The data were analyzed using the structural equation modeling using partial least squares (SEMPLS). The research findings revealed that Attitude, Subjective Norm, Perceived usefulness, and Perceived behavioral becomes a positive predictor of Intention to use e-learning. However, Subjective norms found no significant effect on Intention to use e-learning in the Malaysian context. It is due to the COVID-19 emergency that an individual must choose for the e-learning method disregarding their perceptions. Perceived ease of use and Perceived usefulness has a significant positive effect on attitude. These findings offer guidelines to educational institutes for the implementation of the e-learning system during unavoidable circumstances for the sustainable education system.
Efficient characterization of multilayered microwave wireless circuits on gyrotropic dielectric media including magnetized ferrites

The ever‐growing use of anisotropic ferrite devices in modern wireless communication systems highlighted the need for robust design tools to reliably characterize the dispersion behavior of such devices in radio frequency (RF)/microwave bands, especially for multilayered configurations. Indeed, as ferrites present a biaxial anisotropy, spectral analysis of multilayered configurations with such substrates is not generalized, however, restricted to some particular cases of tensors. Therefore, this article deals with the characterization of anisotropy effects on the dispersion parameters of multilayered wireless circuits with ferrite substrates, particular case of gyrotropic medias. In the proposed approach, a rigorous analysis was carried out by taking into account, for the first time, the electrical aspect of anisotropy. The computed results are in good agreement with those available in the literature. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:978–982, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25951
Physical activity and nutrition of children in primary education

Abstract Physical inactivity is the fourth major cause of mortality in the world, so the World Health Organisation advises for children and adolescents to accumulate moderate physical activity at least 60 minutes a day with the aim to preserve health and prevent the occurrence of various chronic diseases. Elevated overweight and obesity, besides in adulthood, occur increasingly more in childhood. The aim of the research is to determine the level of nutrition and physical activity of younger school children, as well as the differences between girls and boys. The results obtained on a sample of 265 participants of a younger school age show that girls and boys have a normal nutritional level in the first and third grade, while for girls and boys of the second and fourth grade an elevated level of the body mass index (BMI) was noticed. Results show that most girls and boys of a younger school age do sports in their free time, and that they spend approximately 2 to 3 hours a day outdoors. Boys usually train three times a week, girls train two times a week, while the average boys’ training lasts 60, and the girls’ training 75 minutes.
Optimisation for multi-part flow-line configuration of reconfigurable manufacturing system using GA

To facilitate the configuration selection of reconfigurable manufacturing systems (RMS) at the beginning of every demand period, it needs to generate K (predefined number) best configurations as candidates. This paper presents a GA-based approach for optimising multi-part flow-line (MPFL) configurations of RMS for a part family. The parameters of the MPFL configuration comprise the number of workstations, the number of paralleling machines and machine type as well as assigned operation setups (OSs) for each workstation. Input requirements include an operation precedence graph for each part, relationships between operations and OSs as well as machine options for each OS. The objective is to minimise the capital cost of MPFL configurations. A 0-1 nonlinear programming model is developed to handle sharing machine utilisation over consecutive OSs for each part which is ignored in the existing approach. Then a novel GA-based approach is proposed to identify K economical solutions within a refined solution space comprising the optimal configurations associated with all feasible OS assignments. A case study shows that the best solution found by GA is better than the optimum obtained by the existing approach. The solution comparisons between the proposed GA and a particle swarm optimisation algorithm further illustrate the effectiveness and efficiency of the proposed GA approach.
Using Internet of Things application for Monitoring Photo-Voltaic Panel Based on Ask Sensors Cloud

Internet of Things (IOT) devices and monitoring systems are essential for the accurate, reliable, and proper functioning of photovoltaic (PV) solar energy systems. The data acquisition and monitoring system ensure adequate operation and ascertain system malfunctions before they become significant problems. The IOT integrates ordinary items using modern technology in the physical scope. It is all feasible to utility voltage, current, temperature, and humidity sensors. The current research focuses on developing a cost-effective, accessible, and steadfast data monitoring system. A microcontroller-based data logger is stored in a cloud. The data can be downloaded directly from the website using the IoT technique because photovoltaic (PV) panels are built-in faraway locations and humans cannot reach them. The suggested system demonstrates the online utilization of solar PV power.
Powder XRD Study of Changes of Cd2+ Modified Clinoptilolite at Different Stages of the Ion Exchange Process

Cadmium exchange on clinoptilolite is performed and structurally studied for different durations of the ion exchange process (2 h, 24 h, 72 h, 168 h, 12 days, 22 days) at room temperature and 90 °C. The distribution of Cd2+ ions in all samples is elucidated after exchange on clinoptilolite using powder XRD data processed by Rietveld structural software. Clinoptilolite is not selective for cadmium cations, but at 90 °C the exchange is ~2.5 cations per unit cell. At RT it reaches ~1.25 cations per unit cell being twice as low. The obtained maximum exchanged sample for 22 days 90 °C was structurally refined in order to find the cadmium positions in the clinoptilolite voids. The structural refinements of the occupations of the incoming and outgoing cations give an idea of how the intracrystalline diffusion is processed. A good correlation between results obtained by structural refinement of the Cd-exchanged samples and the data of the EDS measurements was achieved.
Turbulence Dictates Bedload Transport in Vegetated Channels Without Dependence on Stem Diameter and Arrangement

Vegetation provides habitat and nature‐based solutions to coastal flooding and erosion, drawing significant interest in its restoration, which requires an understanding of sediment transport and retention. Laboratory experiments examined the influence of stem diameter and arrangement on bedload sediment transport by considering arrays of different stem diameter and mixed diameters. Bedload transport rate was observed to depend on turbulent kinetic energy, with no dependence on stem diameter, which was shown to be consistent with the impulse model for sediment entrainment. Existing predictors of bedload transport for bare beds, based on bed shear stress, were recast in terms of turbulence. The new turbulence‐based model predicted sediment transport measured in model canopies across a range of conditions drawn from several previous studies. A prediction of turbulence based on biomass and velocity was also described, providing an important step toward predicting turbulence and bedload transport in canopies of real vegetation morphology.
Non-Indigenous Species on Artificial Coastal Environments: Experimental Comparison between Aquaculture Farms and Recreational Marinas

Globally, there is growing concern regarding the effects of the increasing anthropogenic pressures in marine communities. Artificial structures such as marinas and aquaculture facilities serve as invasion hotspots; hence, monitoring fouling communities on these structures can be valuable for detecting new invasions. In the current study, 24 settlement PVC plates were deployed for three months to compare the recruitment ability of these two artificial environments along the south coast of the offshore island of Madeira (NE Atlantic). The results showed higher variations in the species richness between regions (SW vs. SE) than between artificial habitats (sea-cages vs. marinas), although the community composition differed. Cnidaria and Bryozoa were the most representative groups in the aquaculture systems, while Bryozoa and Chordata were in the marinas. A sum of 18 NIS was recorded for the study, accounting for between 21.88% and 54.84% of the total number of species in the aquaculture facilities and marinas, respectively. The higher NIS percentage from the marinas was even more explicit in the SE coast, where Cradoscrupocellaria bertholletii, Parasmittina alba, and Botrylloides niger distinctly dominated fouling populations. The results suggest that at least some particular NIS previously reported in the studied marinas successfully colonized sea-cages. Future assessments need to address the potential role of aquaculture facilities as drivers for the secondary spread of NIS. Additionally, two new records are considered for Madeira: Eudendrium capillare and Ericthonius punctatus.