Miracle-dz/UniFAR-FTUs huggingface dataset:
Alternative liquid dielectrics in power transformer insulation: a review

Transformer liquid dielectrics evolved where mineral oil has been the dominant choice until emergence of synthetic esters and natural esters. Natural ester-based oils have been under extensive investigations to enhance their properties for replacing petroleum-based mineral oil, which is non-biodegradable and has poor dielectric properties. This paper focuses on exposition of natural ester oil application in mixed transformer liquid dielectrics. Physical, chemical, electrical, and ageing characteristics of these dielectrics and the dissolved gas analysis (DGA) were reviewed. Physical properties include viscosity, pour point, flash and fire point which are vital indicators of heat insulation and fire risk. Chemical properties considered are water content, acid number, DGA, corrosive sulphur, and sludge content to limit and detect degradation and corrosion due to oil ageing. Electrical properties including breakdown voltage were considered for consistent insulation during overload and fault conditions. These properties of evolving alternative dielectrics were reviewed based on ASTM International standards and International Electro technical Commission standards for acceptable transformer liquid dielectrics. This review paper was compiled to avail modern methodologies for both the industry and scholars, also providing the significance of using mixed dielectrics for power transformers as they are concluded to show superiority over non-mixed dielectrics.
buildH: Build hydrogen atoms from united-atom molecular dynamics of lipids and calculate the order parameters

1 CNRS, Université de Paris, UPR 9080, Laboratoire de Biochimie Théorique, 13 Rue Pierre et Marie Curie, F-75005 Paris, France 2 Institut de Biologie Physico-Chimique–Fondation Edmond de Rothschild, PSL Research University, Paris, France 3 Laboratoire Coopératif “Lipotoxicity and Channelopathies ConicMeds,” Université de Poitiers, F-86000 Poitiers, France 4 Université de Paris, CNRS, Institut Jacques Monod, F-75006, Paris, France 5 Sorbonne Université, Ecole Normale Supérieure, PSL Research University, CNRS, Laboratoire des Biomolécules (LBM), F-75005 Paris, France 6 Université de Paris, UFR Sciences du Vivant, F-75013 Paris, France DOI: 10.21105/joss.03521
Synovial Fluid-Induced Aggregation Occurs across <named-content content-type='genus-species'>Staphylococcus aureus</named-content> Clinical Isolates and is Mechanistically Independent of Attached Biofilm Formation

Rapid synovial fluid-induced aggregation of Staphylococcus aureus is currently being investigated as an important factor in the establishment of periprosthetic joint infections (PJIs). Pathogenic advantages of aggregate formation have been well documented in vitro, including recalcitrance to antibiotics and protection from host immune defenses. The objective of the present work was to determine the strain dependency of synovial fluid-induced aggregation by measuring the degree of aggregation of 21 clinical S. aureus isolates cultured from either PJI or bloodstream infections using imaging and flow cytometry. Furthermore, by measuring attached bacterial biomass using a conventional crystal violet assay, we assessed whether there is a correlation between the aggregative phenotype and surface-associated biofilm formation. While all of the isolates were stimulated to aggregate upon exposure to bovine synovial fluid (BSF) and human serum (HS), the extent of aggregation was highly variable between individual strains. Interestingly, the PJI isolates aggregated significantly more upon BSF exposure than those isolated from bloodstream infections. While we were able to stimulate biofilm formation with all of the isolates in growth medium, supplementation with either synovial fluid or human serum inhibited bacterial surface attachment over a 24 h incubation. Surprisingly, there was no correlation between the degree of synovial fluid-induced aggregation and quantity of surface-associated biofilm as measured by a conventional biofilm assay without host fluid supplementation. Taken together, our findings suggest that synovial fluid-induced aggregation appears to be widespread among S. aureus strains and mechanistically independent of biofilm
Degradation of PVDF-Coated Fabrics after Engineering Applications: Correlations between Surface Microstructure, Physical Properties, and Mechanical Properties Based on Statistical Analysis

Material degradation has marked impact on the long-term properties and service life of membrane structures. This study is aimed at assessing and understanding the deterioration in visual aspect, surface microstructure, and mechanical properties of a polyvinylidene fluoride (PVDF) polymer after engineering applications. Three groups of PVDF-coated fabrics were removed from different membrane structures in China, which have been used for 15, 16, and 19 years, respectively. Firstly, spectrocolorimetry tests were carried out to determine the evolution of chromaticity and lightness. Other methods such as contact angle and thickness measurements were used to characterize the physical properties. Then, surface morphology was observed by using scanning electron microscope (SEM) technology. Moreover, a series of uniaxial tensile tests and tearing tests were performed to obtain the mechanical indicators including uniaxial tensile strength, strain at break, tearing strength, and uniaxial elastic modulus. In order to further study the degradation mechanism, infrared spectroscopy was used to characterize the molecular structure of aged fabrics. Finally, Principal Component Analysis (PCA) provided a comprehensive description of correlations between surface microstructure, physical properties, and mechanical properties. This paper offers a further understanding of the design, qualification, and durability evaluation of membrane structures.
Effect of Cadmium Chloride on the Histological Structure of Lung in Adult Male Mice with and without Parsley Oil

This study is to detect the toxic effect of cadmium chloride on the histological structure of the lung and the effect of parsley oil to amilorate these changes In this experiement 40 adult male mice were divided into four groups. Goup A (control group) in this group animals were injected with the normal saline intraperitoneally single daily dose for 30 days. Group B injected intrapertioneally with cadmium chloride single daily dose 3.5 mg/kg body weight for 30 days. Group C injected intraperetonially with cadmium chloride in a dose of 3.5 mg/kg body weight. Intragastric tube was put to recieve parsley oil in a dose of 0.5 ml/kg body weight prior to cadmium injection. The two drugs were given for 30 days. Group D recieved 0.5 ml/kg body weight by intragastric tube of parsley oil for 30 days. At the end of this experiement, the animals were sacrified the lungs were collected from all groups and prepared for light microscopical examination. Histological changes were detected in cadmium chloride treated group in comparison with the control group including congestion, inflammatory cell infiltration, interstial pneumonia (decreased alveolar space), thickening of interalveolar septum and damge to the alveolar cells. All these changes were eliminated by giving parsley oil.
NĚKTERÉ EKONOMICKÉ ASPEKTY AKTIVNÍHO ŽIVOTNÍHO STYLU SOME ECONOMIC VIEWS OF ACTIVE LIFESTYLE

The aim of this contribution is to relate the contemporary trend toward the active lifestyle with economic conditions in the reality of present-day divided world. The author defines basic macroeconomical approaches, quantitative indicators and aims of the economical growth. The conclusion is that they are limited and one-sided from the point of view of uderstanding present-day life. The author states that the active lifestyle is a reflection and a targeted reaction to the negative consequences of the non-active lifestyle that has been set up by favouring the economical growth and consumerism in developed countries. In the sphere of food consumption, he highlights the negative phenomenon of consumerism – diseases affluence: overweight and obesity. He is trying to show how economical market features support their occurence. Their nature is explained also in the framework of contemporary information economics. The solution could be found not only in screening, but also in the global change of the consumer behavior by their education towards the active lifestyle and active wellbeing.
Examination of the Transitions between Modal Representations in Coding Training

This study aims to determine the perceptions of undergraduates, who are receiving coding training in a faculty of education, on modal representations employed in the training process and identify their transition skills between representations. The research used the quantity search method, non-experimental design, and descriptive search models, calculating the obtained data frequencies by numerical analysis. The study was carried out with the participation of 58 undergraduates in the Computer and Instructional Technology Department of an education faculty in the 2018-2019 academic year. The representational skill-testing used in the study consists of 12 open-ended questions developed by the researchers. The reliability of the test was calculated as . 96 with the Pearson product-moment correlation coefficient value. Transitions between the representation of mathematics, verbal, flowchart, and code were rankly listed in the test, which was applied in a single session. The obtained data were scored with a grading key and undergraduate achievement was assessed according to the transition between representations. The analysis has revealed that representation transition skills may differ from each other and that coding training, which takes into account these transition skills, should be carried out with flow chart, verbal, mathematical and ultimately code representations, respectively.
Association between Chewable Tobacco Consumption and Oral Hygiene Habits on Periodontal Health

Aims: To determine the pattern of chewable tobacco habits, to assess the oral hygiene habits among patients visiting dental OPD and to determine the association of oral health maintenance and chewable tobacco with severity of periodontal disease. Study Design: It was a comparative cross sectional study. Place and Duration of Study: Dental Outpatient Department, Liaquat University Hospital Hyderabad and Jamshoro for six months from 1st February 2020 to 31st July 2020. Methodology: A total of 362 subjects were selected by non-probability sampling technique. A pre-designed questionnaire was used to collect the data. Questionnaire forms was close and open ended. The investigator checked the patients, under the supervision of the OPD specialist and classified the periodontal health status. Statistical package for social sciences (SPSS v.22) was used for data analysis. Results: A total of 362 subjects, (84.5%) male and (15.5%) females were included in the study with the mean age 34.9 and SD ± 11.7. A highly significant association was found between chewable tobacco consumption and oral hygiene habits on periodontal health (p=<0.001) and statistically significant difference was found between the scores of measure of probing depth and loss of attachment for male and females (p=<0.001). Conclusion: Periodontal diseases and poor oral hygiene have been diagnosed in all consumers of chewable tobacco. Usage of various types of chewing tobacco has been found to exacerbate the condition by developing pocket formation, bleeding on the probe, and inducing gingival recession as well.
Feasibility Study of MRI and Multimodality CT/MRI Radiomics for Lung Nodule Classification

Lung cancer is the most common and lethal form of cancer, and its early diagnosis is key to the patient's survival. CT is the reference imaging scan for lung cancer screening; however, it presents the drawback of exposing the patient to ionizing radiation. Recent studies have shown the relevance of MRI in lung nodules diagnosis. In this work, we aimed to evaluate whether radiomics features from MRI are well-suited for lung nodules characterization and if the combination of CT and MRI features can yield better results than the features from the individual modalities. For such, we segmented paired CT and MRI nodules from 33 lung nodules patients, extracted 89 radiomics features from each modality, and combined it into a multimodality feature set. Those features were then used for classifying the nodules into benign and malignant by a set of machine learning algorithms, assessing the AUC across 30 trials. Our results show that MRI radiomics features are suitable for characterizing lung lesions, yielding AUC values up to 17% higher than their CT counterparts, and shedding light on MRI as a viable image modality for decision support systems. Conversely, our multimodality approach did not improve performance compared to the single-modality models, suggesting that the direct combination of multimodality features might not be an adequate strategy for dealing with multimodality medical images.
The differences between Froriepia subpinnata (Ledeb.) Baill. and Pimpinella anisum L. commonly named as anarijeh based on major components of the essential oil; a marker for resolve ambiguities

Background: Froriepia subpinnata (Ledeb.) Baill. and Pimpinella anisum L. are two important medicinal plants belong to the Apiaceae family. Due to the similar Persian name in ethnobotanical studies, namely “anarijeh”, these two medicinal plants are mistakenly used instead of each other in the Iranian medicinal plants market and even in scientific reports. Objective: In this study, the correct morphological description of studied species were introduced and the chemical composition of their essential oils and their using DPPH and FRAP Results: p -Cymen-8-ol (51.13 (7.69 (6.83 (85.65 carvone anisum EO. The results antioxidant activities in DPPH and FRAP assays at 250 μg/ml were 53.03 and 62.72 % for F. subpinnata 50.27 and 59.91 P. anisum , respectively. results of antioxidant activity DPPH FRAP almost similar potential.
TOWARDS A SCORING SYSTEM FOR QUANTIFYING THE OBJECTIVE WELL-BEING OF INDIA AND ANALYSIS OF ITS COMPONENT INDICATORS

- The well-being of an individual is very subjective in nature. A rich person can be miserable while at the same time a middle class person can be content with the way he/she is. Officially it is defined as “the state of being comfortable, healthy or happy” [1]. However, well-being is a much broader concept than moment-to-moment happiness. A person’s wellbeing can encompass a number of factors ranging from health indicators to wealth related indicators. In this paper, we are proposing a means to objectively analyze the well-being (OWBA) of individuals in India. We first start by finding the most contributing indicators towards a person’s well-being in India. Finally, we present a way to calculate the objective wellbeing score (OWBS) of the population by taking into account these important indicators.
THE QUALITY OF SURVEY SCALES FOR MEASURING INFORMATION PRIVACY CONCERNS ON SOCIAL NETWORK SITES: A SYSTEMATIC REVIEW

Information privacy concerns (IPCs) play an important role in user behavior on social network sites (SNSs). They are associated with self-disclosure behavior, enjoyment, and, perhaps most importantly, a user’s intention and ability to form and sustain social ties on SNSs. While conceptual integration of different approaches to studying IPCs has already been pursued, prior research has pointed to potential problems with respect to the survey measurements of IPCs. More specifically, a plethora of self-assessment scales have been developed but the differences among them have not yet been systematically elaborated, and this is further complicated by many methodologically questionable adaptations of existing IPC survey scales to ever-emerging online contexts and SNS platforms. Accordingly, this study comprises a systematic literature review based on the COSMIN methodology to comprehensively examine the quality of survey scales used for measuring IPCs among SNS users. The results have unveiled significant variety with 35 uni- or multidimensional survey scales used in 71 articles published since 2009. Many of the scales are of questionable quality in terms of structural validity, and only a few of the studies tested them for measurement invariance. Nevertheless, we identified some scales that are promising candidates for future use, although further testing and potential improvements are needed. Our findings could also act as the foundation for a unified measurement approach to IPCs that could be used across different SNSs platforms.
Effects of High Shearing Rates on the Shear Behavior of Saturated Loess Using Ring Shear Tests

The shear behavior of saturated loess was examined by performing a series of ring shear tests with different shearing rates. The effects of shearing rates on the shear behavior of saturated loess with different normal stress are presented and discussed. The results showed that peak shear strength and steady-state shear strength were greater when the shearing rate was low and vice versa. Compared with high and low shearing rates, the maximum strength reduction ratios of peak shear strength and steady-state shear strength were 34.2% and 37.2%, respectively. The axial displacement during shearing was measured and was found to increase with increasing shear displacement in all tests. A comparison of sample height reduction (when the shear rate was stopped) found that the low shearing rate test sample underwent a much greater reduction than the high shearing rate test sample; however, the variation reduction range was within 4 mm. Monitoring the pore-water pressure during the shearing process revealed that it increased with shear displacement, and a higher excess pore-water pressure was generated within the shear zone during the fast-shearing process. Comparing the particle size distribution of the samples after the test and the original sample showed that the particles were crushed during the shearing process. The percentage that was finer than 0.005 mm increased with shearing rates and normal stress, and the soil structure implosion became more pronounced with increasing normal stress.
Application of PI controller based active filter for harmonic mitigation of grid-connected PV-system

The recent trends show the interconnection of PV system with electric grid. With this configuration the issue of harmonics comes into existence. The mounting figure of power-electronic instruments has formed considerable impression on the power-quality of electric supply. Harmonics deformations have conventionally been handled amid the application of passive-LC filters. Active Filter has emerged as a good substitute for passive filters to reduce the harmonics to great extent as it has numerous benefits over the former filters. The active filter’s most vital part is the applied control strategies. Several researches are being under process to advance the functioning of the filter. One of the important control requirements of filter is the regulation of DC link up capacitor voltage. Here the voltage supervision of capacitor is being done using PI controller. The paper show current harmonics compensation of PV grid connected system using PI controller based active filter. Simulation outcomes have been shown which displays the harmonics are within the IEEE boundaries.
Emerging Viruses Besides the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)

The emergence of deadly viruses is one of the epitomes of major global health threats. Currently the world is going through the COVID-19 pandemic resulting in extreme morbidity and mortality, which is caused by the severe acute respiratory coronavirus 2 (SARS-CoV-2). Besides, SARS-CoV-2, recent global perturbation caused by the chikungunya virus (CHIKV) infection, dengue caused by dengue virus (DENV), zika virus (ZIKV) infection, etc. are worth being noted. Although an array of research on the genome sequences within spatial geographical locations, infectious components, viral transmissibility and dynamics, treatment strategies using in silico model, animal/cell culture, and patient trials of these emerging viruses is being conducted, the human population is still at risk of being exposed to the emerging and re-emerging viral infections posing a most dreadful threat to the global public health. Besides the genomic characterization and the proteomic studies for drug repurposing or repositioning as well as the possible candidate vaccine development, the general awareness among the mass public about the preventive care against these emerging viruses is also an important concern. Lots of works have been reported on SARS-CoV-2 since its commencement on December 2019. Besides the elucidation of the respiratory viruses, present review briefly pointed on the viruses from Flaviviridae family, Paramyxoviridae family, Filoviridae family and Bunyaviridae family
BIANCA DEL BIANCO SAHM MODULAÇÃO DO FATOR DE TRANSCRIÇÃO TBX2 COMO NOVA ESTRATÉGIA ANTICÂNCER: ESTUDO BASEADO NA ATIVIDADE BIOLÓGICA DE CROMOMICINA A5 EM CÉLULAS DE MELANOMA

Melanoma is a neoplasm derived from melanocytes, with a high rate of heterogeneity that hinders the effectiveness of the treatment currently available for this disease. Therefore, the search for new treatments that act on different molecular targets is still necessary in melanoma therapy. Studies have shown that the transcription factor TBX2, known for its functions in embryogenesis, favors the proliferation and immortality of melanoma cells through the escape of senescence, and still confers resistance to treatment with DNA-alkylating agents, being considered a new anticancer target. Marine natural products represent a large arsenal of unique molecules with diverse biological activities, being an important source of compounds with anticancer activity. Thus, the present study aimed to identify natural compounds of marine origin with potential for binding to the TBX2 transcription factor. Our prospecting strategy was to use a reverse affinity procedure where the TBX2 recombinant protein was used as bait. In the present study we explored the ability of marine bacteria in producing bioactive compounds and describe the isolation and characterization of molecules belonging to the class of chromomycins. Subsequently, chromomycins were tested for their potential to bind with TBX2. The results show that chromomycin A5 (CA5) potentially binds to this target. CA5 also showed strong cytotoxic activity against a TBX2-driven metastatic melanoma cell line (IC50 0.8 nM). Still, using genetically modified models, where the expression of TBX2 was increased or depleted, revealed that the presence of this transcription factor alters the cytotoxicity profile of CA5 in these cells. Further studies of anticancer characterization suggest that modulation of TBX2 transcription properties may play a role in the cytotoxic effects of CA5 in melanoma cells. Finally, we discuss the current scenario of different strategies that aim the modulation of transcription factors as an important approach in anticancer therapy.