Miracle-dz/UniFAR-FTUs huggingface dataset:
Detection of Some Virulence Factors in Staphylococci Isolated from Mastitic Cows and Ewes

Abstract About 150 million families around the world are engaged in milk production. However, inflammation of the mammary gland (mastitis) remains a major problem in dairy ruminants that affects the quality of milk worldwide. The aim of this study was the examination of udder health with detection of contagious and environmental pathogens causing mastitis in 960 and 940 dairy cows and ewes, respectively. The presence of selected virulence factors such as: the formation of haemolysis, gelatinase, biofilm, hydrolyse DNA, and resistance to antibiotics with detection of methicillin resistance gene (mecA), were determined in selected virulence factors associated with isolated staphylococci. These isolated staphylococci with selected virulence factors can have untoward effects on the severity of mastitis. The results of our study indicated that, in addition to the major udder pathogens (S. aureus, S. uberis, and S. agalactiae) causing mastitis, non-aureus staphylococci (NAS), is a major risk to dairy cows and ewes. NAS, such as S. chromogenes, S. warneri, and S. xylosus isolated from infected animals with clinical and chronic mastitis, had the highest representation of virulence factors in comparison to less virulent strains. In addition, the isolates of S. aureus and NAS demonstrated 77.0 % and 44.2 % resistance to one or more antimicrobial classes from mastitic milk samples obtained from dairy cows and ewes, respectively. Due to the high resistance to β-lactamantibiotics in two isolates of S. aureus and two species of NAS isolated from cows’ mastitic milk samples, the presence of a methicillin-resistant gene mecA poses serious complications for the treatment and a serious health risk to milk consumers.
Parsons Problems and Beyond: Systematic Literature Review and Empirical Study Designs

Programming is a complex task that requires the development of many skills including knowledge of syntax, problem decomposition, algorithm development, and debugging. Code-writing activities are commonly used to help students develop these skills, but the difficulty of writing code from a blank page can overwhelm many novices. Parsons problems offer a simpler alternative to writing code by providing scrambled code blocks that must be placed in the correct order to solve a problem. In the 16 years since their introduction to the computing education community, an expansive body of literature has emerged that documents a range of tools, novel problem variations and makes numerous claims of benefits to learners. In this work, we track the origins of Parsons problems, outline their defining characteristics, and conduct a comprehensive review of the literature to document the evidence of benefits to learners and to identify gaps that require exploration. To facilitate future work, we design empirical studies and develop associated resources that are ready for deployment at a large scale. Collectively, this review and the provided experimental resources will serve as a focal point for researchers interested in advancing our understanding of Parsons problems and their benefits to learners.
HeadsUp: Mobile Collision Warnings through Ultrasound Doppler Sensing

Smartphone-using pedestrians are often distracted, leading to frequent accidents of varying severity with a risk of both awkwardness and injury. We introduce HeadsUp, a mobile app designed to warn the user of imminent collisions with solid obstacles. HeadsUp runs on unmodified commodity smartphones without additional hardware and uses active ultrasound sensing based on the Doppler effect. We contribute an analysis of the ultrasound audio characteristics of six different smartphone models to verify the feasibility of our approach across vendors and device classes, and a description of two implementation variants of our signal processing pipeline. We evaluate our system both in a lab environment and under real-world conditions, and we conclude that HeadsUp can effectively work at a range of up to 3 meters, even though overall performance is heavily dependent on both the individual user and the environment characteristics.
Self-management of chronic disease in Latina Kinship caregivers: an integrative review

ABSTRACT In the United States, Latinos experience a higher prevalence of chronic diseases with concomitant complications when compared to Non-Latino Whites. Older Latina women often manage a chronic illness while also providing kinship care. This article presents an integrative review of Latina kinship caregivers’ self-management of chronic disease. An extensive review of the literature was conducted in seven databases. Four resulting studies included qualitative, quantitative, and mixed methods research and suggested health outcomes for Latina kinship caregivers were often worse when compared to other groups. A major gap in the literature identified an absence of disease-specific self-management behaviors for this population.
Dielectric Switching and Ferroelectric Studies of α, γ PVDF Phases for Energy Storage Properties

Abstract This article presents the current–voltage (I–V) characteristics, ferroelectric (P–E) and energy density properties of polyvinylidene fluoride (PVDF) film samples synthesized by melt-press and solution-cast techniques. Our earlier work reported the α and γ -PVDF phase stabilization in PVDF film samples processed by melt-pressing and solution-casting respectively. In the present work, the I–V loops of pure PVDF film samples were recorded with variable delay time from 0.0005 to 1 s in order to understand the switching behavior response of molecular dipoles in different PVDF molecular conformations. The hysteresis behavior of I–V loops revealed the dominance of dipolar switching current in both the α and γ-PVDF phases. The slim P–E hysteresis loops with low remnant polarization Pr values ≈0.26 and 0.21 μC/cm2 at an applied electric field of 100 kV/cm for α and γ -PVDF phases respectively were traced. The dielectric energy storage efficiency η as calculated from P–E loop data was found to be ≈37.7% and 38.6%, respectively, for α and γ -phases of PVDF. The low leakage current and slim P–E hysteresis behavior in both the α and γ -phases of PVDF are favorable or desired for their application in dielectric energy storage capacitors.
Research Progress on Piezoelectric Energy Harvesting Circuits

Abstract This paper details several piezoelectric energy recovery interface circuits that have been widely studied at home and abroad to rectify the AC power generated by piezoelectric energy harvesting devices into DC power for direct utilization or storage, and divides the energy recovery circuits into single-stage, bipolar, and three-stage interface circuits according to the purpose and number of interfaces. According to the different interface circuits, the development history of each interface is introduced in detail, and a preliminary outlook on the piezoelectric energy harvesting circuit is provided for further improvement by related researchers.
The Accuracy of Area Measurement by Point Counting Techniques

AbstractThis paper deals with the nature of the sampling errors which may occur in measurement of area by a square pattern 'dot planimeter'. The important conclusion is that the relative error of measurement is small if the count of points is of the order of 100 per parcel. The authors recommend the use of different sizes of point pattern for the measurement of different sizes of parcel, rather than the use of a single overlay for the measurement of every parcel on a given map. The theoretical work is supported by some results of measurements made on the McKay Pattern Map using the MK Area Calculator.
SOME ASPECTS OF M/G/1 QUEUE WITH TWO DIFFERENT VACATION TIMES UNDER MULTIPLE VACATION POLICY

This paper deals with the steady state behavior of an M/G/1 queuing system with two different vacation times under multiple vacation policy, where length of the first vacation is different from the second and subsequent vacations. In this paper, attempts have been made to obtain the additional queue size distribution, distribution of additional delay and waiting time distribution of this model. Also, we obtain some important measures of this model.
Interval uncertainty analysis of elastic bimodular truss structures

Two numerical models are presented for the interval uncertainty analysis of elastic bimodular truss structures. The first one is for the intervals estimation of displacements when constitutive parameters are interval variables, and the second one is for the intervals estimation of unknown constitutive parameters when there exists an interval uncertainty in the measurement. Based on a smoothed FE model, an interval relationship between displacements and bimodular parameters is put forward using Taylor series expansion and interval arithmetic, two deterministic formulae are derived to estimate the uncertain interval bounds of displacements, and a two-step strategy is developed to estimate the intervals of elastic bimodular constitutive parameters as well. Numerical comparisons are provided to verify the proposed approach and the advantage/shortcomings of the proposed approach is discussed.
Moral intuition, strength, and metacognition

ABSTRACT Moral intuitions are generally understood as automatic strong responses to moral facts. In this paper, I offer a metacognitive account according to which the strength of moral intuitions denotes the level of confidence of a subject. Confidence is a metacognitive appraisal of the fluency with which a subject processes information from a morally salient stimulus. I show that this account is supported by some empirical evidence, explains the main features of moral intuition and is preferable to emotional or quasi-perceptual views of moral intuition.
Development and evaluation of a formulation of probiont Phaeobacter inhibens S4 for the management of vibriosis in bivalve hatcheries

Larval eastern oysters (Crassostrea virginica) grown in shellfish hatcheries are susceptible to bacterial diseases, particularly vibriosis. Probiotics are microbes that confer health benefits to the host and have been identified as promising tools to manage diseases in aquaculture. The marine bacterium Phaeobacter inhibens S4 (S4) protects larval eastern oysters against challenge with the bacterial pathogen Vibrio coralliilyticus RE22 (RE22). A concentrated liquid formulation of probiont S4 that maintained high cell viability after long-term storage was developed for commercial use in shellfish hatcheries. The safety and efficacy of the formulation was tested in six different trials in two hatcheries. The S4 formulation was added to C. virginica larvae culture tanks daily at 104 colony forming units (CFU)/mL from day 1 post fertilization until day 6, 12, or 14, depending on the trial. Treatment of larvae in the hatchery with the S4 formulation did not significantly affect the survival and growth of the larvae. Formulated probiont S4 treatment in the hatchery led to a significant increase in Relative Percent Survival (RPS) when larvae were subsequently challenged with the pathogen RE22 (105 CFU/mL) for 24 hours in a laboratory challenge, as compared to probiotic-untreated RE22-challenged larvae (Relative Percent Survival increase of 46 - 74%, p < 0.05). These results suggest that this novel S4 formulation is a safe, easy to use, and effective tool in preventing larval losses due to vibriosis in hatcheries.
Confocal microscope photoluminescence and electrical characteristics of single poly(3-hexylthiophene) nanowire strand

The photoluminescence (PL) spectra and images of a single strand of poly(3-hexylthiophene) (P3HT) nanowires with different doping states were compared by means of a laser confocal microscope with a high spatial resolution. The P3HT nanowires were electrochemically synthesized by using an ionic liquid as a dopant. From the ultraviolet and visible absorption spectra, the doping and dedoping effects of the P3HT nanowires through the treatment of organic solvent were investigated. The electrical conductivity of the single strand of the lightly doped P3HT nanowires was estimated to be ∼3.5×10−3S∕cm, which was higher than that (∼5.4×10−5S∕cm) of the dedoped one. From the laser confocal microscope PL experiments, we quantitatively observed more homogeneous and three to eight times brighter light emission from the single strand of the dedoped P3HT nanowires.
Intelligent System of Dynamic 2D Visualization of Passenger Flows of Public Transport Routes Based on OpenGL

The paper analyses existing and current scientific developments and literature sources, which show the advantages and disadvantages of many different algorithms and methods, approaches, and methods for solving problems of 2D visualization of passenger flows on public routes. As a result of the research, stable connections have been established between the factors and criteria in assessing the quality of passenger transport services. The system analysis of the designed system is executed, and examples of the structure of an intelligent system of 2D visualization of passenger flows are created. The system's connections with the essential elements of the external world are analyzed. Our unique algorithms have been developed to display visualizations in two modes: schematic and "on the map". In the "on the map" mode, a method of calculating data on the movement of transport units on the route was successfully applied for 2D visualization on the screen, taking into account the absolute values of geographical coordinates in the world. It avoids unnecessary errors and inaccuracies in the calculations. A neural network has been developed that operates using the RMSprop learning algorithm. The neural network predicts how the values of passenger traffic will change when adjusting the schedule of the transport unit on the route. The obtained results make it possible to form and substantiate the expediency of changing the vehicle running on the route schedule to make more efficient use of races during peak times.
Analysing the Cases of Population Disease at Critical Levels of Environmental Pollution by Emissions, Discharges, and Waste

As a result, we investigated population disease at critical levels of pollution emissions, discharges, and the waste environment worldwide. We did a detailed analysis of the dataset and demonstrated obtained results. We also studied the composition and structure of the interrelationship of quantity population disease at critical pollution emissions, discharges, and waste in the environment in European countries. We concluded that in Romania, most numbers formed households and enterprises waste causes more diseases in the population.
Recommendation System for Leisure Time-Management in Quarantine Conditions

The paper describes the problems during quarantine restrictions and how this affects the psycho-emotional health of the person. The need to adapt and modify the usual forms of leisure activity to the new format has been determined. The most famous modern information systems, providing entertainment services are narrow-purpose systems. They generate recommendations related to media services. Methods of providing recommendations have been studied. A tree of goals was built to solve the problem situation. Alternative means of implementation of the information system are considered. Using the Analytical Hierarchy Method, the optimal type of system for the implementation of the proposed solution was chosen –
Risk for Severe Illness and Death among Pediatric Patients with Down Syndrome Hospitalized for COVID-19, Brazil

Down syndrome is the most common human chromosomal disorder. Whether Down syndrome is a risk factor for severe COVID-19 outcomes in pediatric patients remains unclear, especially in low-to-middle income countries. We gathered data on patients <18 years of age with SARS-CoV-2 infection from a national registry in Brazil to assess the risk for severe outcomes among patients with Down syndrome. We included data from 14,684 hospitalized patients, 261 of whom had Down syndrome. After adjustments for sociodemographic and medical factors, patients with Down syndrome had 1.8 times higher odds of dying from COVID-19 (odds ratio 1.82, 95% CI 1.22–2.68) and 27% longer recovery times (hazard ratio 0.73, 95% CI 0.61–0.86) than patients without Down syndrome. We found Down syndrome was associated with increased risk for severe illness and death among COVID-19 patients. Guidelines for managing COVID-19 among pediatric patients with Down syndrome could improve outcomes for this population.
Activation and diffusion studies of ion-implanted p and n dopants in germanium

We have demonstrated symmetrically high levels of electrical activation of both p- and n-type dopants in germanium. Rapid thermal annealing of various commonly implanted dopant species were performed in the temperature range of 600–850 °C in germanium substrates. Diffusion studies were also carried out by using different anneal times and temperatures. T-SUPREM™ simulations were used to fit the experimental profiles and to extract the diffusion coefficient of various dopants.
Firms’ corporate social responsibility behavior to stakeholders and its effect on financial performance indices: A case study of Ctrip

In recent years, some domestic and foreign scholars have studied the relationship between corporate social responsibility and corporate performance. Some of these studies show that there is a positive relationship; others found a negative correlation while others found no correlation between them. It is of great significance for internet enterprises to undertake corporate social responsibility when private sector operators provide public services. Through case analysis, this study selects Ctrip, a Chinese multinational online travel company with many incidents of social responsibility in recent years, to explore the impact of corporate social responsibility on corporate financial performance by reading its corporate citizenship report from 2014 to 2020 and selecting major social responsibility events for detailed study. This study has done a specific analysis of its social responsibility performance for different stakeholders such as shareholders, consumers, government, society and the environment, and employees. The case study shows that there is an impact of social responsibility performance on the stock price, revenue, or operating income for different stakeholders. Improving corporate performance using social responsibility is suggested in this study.
Isolated systolic or diastolic hypertension and mortality risk in young adults using the 2017 American College of Cardiology/American Heart Association blood pressure guideline: a longitudinal cohort study

Background: Little is known regarding the health effects of different hypertension phenotypes including isolated systolic hypertension (ISH), isolated diastolic hypertension (IDH), and systolic and diastolic hypertension (SDH) defined by the 2017 American College of Cardiology (ACC)/American Heart Association (AHA) guideline among young adults. We conducted this longitudinal study using time-varying analyses to evaluate the relationship between cardiovascular/all-natural mortality risk and different hypertension phenotypes in young adults. Methods: A total of 284 597 young adults (aged 18–39 years) were recruited between 1996 and 2016. Participants were classified into eight mutually exclusive BP groups: normal blood pressure (BP), elevated BP, stage 1 IDH, stage 1 ISH, stage 1 SDH, stage 2 IDH, stage 2 ISH, and stage 2 SDH. The outcomes were cardiovascular and all-natural mortality. Results: After a median follow-up of 15.8 years, 2341 all-natural deaths with 442 cardiovascular deaths were observed. When compared with individuals with normal BP, the multivariable adjusted hazard ratios (95% confidence interval) of cardiovascular mortality was 1.39 (1.01–1.93) for elevated BP, 2.00 (1.45–2.77) for stage 1 IDH, 1.66 (1.08–2.56) for stage 1 ISH, 3.08 (2.13–4.45) for stage 1 SDH, 2.85 (1.76–4.62) for stage 2 IDH, 4.30 (2.96–6.25) for stage 2 ISH, and 6.93 (4.99–9.61) for stage 2 SDH, respectively. In consideration to all-natural mortality, similar results were observed for stage 1 SDH, stage 2 ISH, and stage 2 SDH; but not for elevated BP, stage 1 IDH, stage 1 ISH, and stage 2 IDH. Conclusion: Young adults with stage 1 or stage 2 ISH, IDH, and SDH are at increased risk of cardiovascular death than those with normal BP. Regardless of BP stage, SDH was associated with a higher cardiovascular mortality risk than IDH and ISH.
Effects of light music played by piano intervention on satisfaction, anxiety, and pain in patients undergoing colonoscopy: A randomized controlled trial

Background: Colonoscopy is the main kind of way to detect and treat diseases about large intestine, but during the examination and preparation, these 2 processes are able to lead abdominal pain, abdominal distention and other discomfort feel, which will cause patients to refuse the examination and become anxious. Painless and sedative endoscopy may reduce discomfort of patients, but there is a risk of adverse effects. Many studies have shown that playing music during colonoscopy can reduce discomfort and increase acceptance of colonoscopy, but the conclusion remains controversial. The 3 approaches of random, single-blind, controlled method were used to investigate the interventions effects of piano light music on satisfaction, anxiety and pain in patients undergoing colonoscopy. Methods: A total of 216 patients were randomly divided into piano music group (n = 112, piano music played during colonoscopy) and control group (n = 104, no music during colonoscopy) to compare patients satisfaction, anxiety score, pain score, vital signs, endoscopic difficulty score, and willingness to undergo colonoscopy again. Results: There were no significant differences in vital signs, pre-colonoscopic state anxiety score, and trait anxiety score before and after colonoscopy, and willingness to undergo colonoscopy again between the 2 groups (P > .05). The difficulty of colonoscopy operation and the score of state anxiety after colonoscopy in the piano group were lower than those in the control group (P < .05), and the satisfaction of colonoscopy process, pain management and overall service satisfaction were better than those of the control group (P < .05), and they were more likely to listen to music in the next examination (P < .001). Conclusion: The light music played by piano can relieve patients’ anxiety, improve the satisfaction of colonoscopy process, pain management and service satisfaction, reduce the difficulty of colonoscopy, which have no obvious adverse reactions. Therefore, it is worthy of promotion.