Miracle-dz/UniFAR-FTUs huggingface dataset:
Thermal Management of IGBT Module in the Wind Power Converter Based on the ROI

Insulated gate bipolar transistor (IGBT) module is one of the most prone-to-fail components in the wind power converter (WPC). The reduction of the junction temperature swing by thermal management can improve the reliability of a WPC. Due to the lack of an applicable selection criterion, not many studies on the control target of junction temperature swing were reported. This article proposes a thermal management strategy to find the control target of junction temperature swing. The proposed strategy considers the return on investment (ROI) of thermal management as a quantitative indicator to guide the control target selection. The selected control target enables optimal benefit of the thermal management. Results show that a 1% increase in the total harmonic distortion would extend the lifetime of IGBT module by 0.144 years. Success of the proposed scheme lies in the efficient regulation of the junction temperature swing. Case studies with different mission profiles and experimental tests on a three-phase two-level inverter are presented to validate the proposed method.
The Relationship between Inclusion Climate and Voice Behaviors beyond Social Exchange Obligation: The Role of Psychological Needs Satisfaction

Several studies have identified a work environment that promotes inclusiveness as a significant predictor of affiliative organizational citizenship behavior or OCB (such as helping), whereas not much research has focused on inclusion and challenging OCB (i.e., voice). Moreover, no previous studies have explored the above-mentioned relationship in the light of self-determination theory (SDT), given that social exchange theory has traditionally been used as the main explanatory mechanism. Therefore, the aim of the present research was to test the mediating role of basic psychological needs satisfaction in the relationship between inclusion climate, promotive voice and prohibitive voice. Data were collected through self-report questionnaires administered to 246 employees of an international company operating in the service industry. Structural equation modelling was used to analyze the data utilizing R software. Results showed that satisfaction of the needs for autonomy, competence and relatedness partially mediated the relationship between inclusion climate and promotive and prohibitive voice, therefore supporting the idea that social exchange might not be the only determinant for employees to engage in voice behavior. Most importantly, those findings underline how a truly inclusive workplace needs to fulfil its employees’ basic needs of behaving volitionally, feeling effective and connecting meaningfully; this would motivate the workers to voice their suggestions and concerns.
Optimum Condition for the Production of N-acetylglucosamine from Tiger Shrimp Shells using Semi Pure Extracellular Chitinase Enzyme Produced by Mucor circinelloides

Chitin is a biodegradable polysaccharide, commonly found in shrimp shells and further processed into its derivatives, such as glucosamine that is extensively used in dietary supplements for the treatment of osteoarthritis, knee pain and back pain. This research was conducted to determine the optimum pH, temperature, substrate concentration and fermentation time for semi pure extracellular chitinase enzyme from Mucor circinelloides to be used in N-acetylglucosamine production. The optimum pH was determined at different pH of 3, 4, 5, 6, 7, 8 and 9 and optimum temperature was determined at 30, 40, 50, 60, 70 and 80°C by measuring chitinase activity. Substrate concentration varies from 0.5, 1.0, 1.5 and 2.0% and fermentation time varies from 2, 4, 6 and 24 hours were used to determine the optimum condition for N-acetylglucosamine production. Results showed that optimum pH of extracellular chitinase enzyme produced by Mucor circinelloides with colloidal chitin as a substrate was 8 with chitinase activity of 5.76 ± 0.17 U/ml and optimum temperature was 50°C with chitinase activity of 6.78 ± 0.13 U/ml. The optimum substrate concentration of extracellular chitinase enzyme with chitin as substrate was 1.5% chitin with concentration of N-acetylglucosamine produced of 1285.73 ± 66.19 ppm and the optimum fermentation time was 2 hours with concentration of N-acetylglucosamine produced of 1322.71 ± 45.43 ppm.
Intake

24 Background: Low cleanliness living environment (LCLE) can increase gut microbial 25 diversity and prevent allergic diseases, whereas gut microbial dysbiosis is closely 26 related to the pathogenesis of asthma. Our previous studies suggested that soil in the 27 LCLE is a key factor in shaping intestinal microbiota. 28 Objective: We aimed to explore if sterilized soil intake as prebiotics while being 29 incubated with microbes in the air can attenuate mice asthma symptoms by modifying 30 gut microbiota. 31 Methods: 16S rRNA gene sequencing was used to analyze the gut microbial 32 composition, in combination with immune parameters measured in the lung and 33 serum samples. 34 Results: 16S rRNA gene sequencing results showed significant differences in the 35 fecal microbiota composition between the test and control mice, with a higher 36 abundance of Allobaculum , Alistipes, and Lachnospiraceae_UCG-001 , which produce 37 short-chain fatty acids and are beneficial for health in the test mice. Soil intake 38 downregulated the concentrations of IL-6, IL-4, IL-17F, TNF-α , and IL-22 in serum 39 and increased the expression of IFN-γ , which regulated the Th1/Th2 balance in lung 40 by polarizing the immune system toward Th1, strongly alleviating ovalbumin-induced 41 asthma inflammation. The effect of sensitization on gut microbiota was greater than 42 that of air microbes and age together, but weaker than that of soil. 43 Conclusion: Soil intake had a significant therapeutic effect on mouse asthma, 44 possibly by promoting the growth of multiple beneficial bacteria. The results
Systematic Observation of Physical Distancing Behaviors of Trail Users During the COVID-19 Pandemic

During the early months of the COVID-19 pandemic, opportunities for indoor and sometimes outdoor recreation were restricted across the world. Despite restrictions, many greenways and rail-trails saw increased use. Messaging from the federal and state public health authorities stressed the importance of social distancing and other preventive measures in reducing spread of the coronavirus. Little is known about actual behaviors of individuals and groups using these outdoor recreational opportunities. This study used passive infrared cameras to systematically observe physical distancing behaviors on multi-user trails in Boone, North Carolina, and Morgantown, West Virginia, to assess safety implications of trail use during June 2020. Most interactions (72.2%) occurred with the recommended six feet of distance between users. Maintaining six feet of distance is more likely to occur when a single individual passes another single individual (88.2%), users pass while traveling in opposite directions (75.9%), and trails are wider (76.8% on 12 ft width trail vs. 62.6% on a 10 ft width trail). Messaging on multi-user trails should target how groups pass other groups, such as “keep six feet” and “pass single file. ”
Serra da Estrela PDO Cheese Microbiome as Revealed by Next Generation Sequencing

Serra da Estrela PDO cheese is the oldest traditional cheese manufactured in Portugal. In this work, its microbiome as well as the main raw materials used in cheese production, raw ewes’ milk and thistle flowers (Cynara cardunculus L.), were characterized using next generation sequencing. Samples were accordingly retrieved from a local producer over two consecutive production campaigns and at different time periods within each campaign. The bacterial and fungi communities associated with each matrix were accessed through sequencing of V3–V4 and Internal Transcribed Spacer 2 regions of rRNA gene amplicons, respectively. A high microbial diversity was found associated to each matrix, differing significantly (p < 0.05) from each other. Over 500 taxa were identified in each analyzed matrix, ranging from dominant (relative abundance > 1%), sub-dominant (0.01–1%) and rare taxa (<0.01%). Specifically, in cheese, 30 taxa were present in all analyzed samples (core taxa), including species of Leuconostoc spp. and Lactococcus spp. for bacteria and Candida spp. , Debaryomyces spp. and Yarrowia spp. for fungi, that were cumulatively the most prevalent genera in Serra da Estrela PDO cheese (average relative abundance ≥10%). Ultimately, this characterization study may contribute to a better understanding of the microbial dynamics of this traditional PDO product, namely the influence of raw materials on cheese microbiome, and could assist producers interested in preserving the identity, quality and safety of Serra da Estrela PDO cheese.
Use of Cartographic Modeling for Assessment of Land Degradation of Damietta Governorate, Egypt

This study aims to assess the land degradation of Damietta governorate by using the cartographic modeling. To fulfill this objective a number of 18 soil profiles, representing different mapping units were studied. Thirty six soil samples were collected for laboratory analysis. Field work and soil analyses were linked with their relevant mapping units. A simple cartographic model was designed on bases of the international framework for evaluating the land degradation. The results indicated that a significant area of the governorate is threatened by high degradation hazard.
Analysis of Anapole States in Dielectric Spheres and Application to Near-Field Enhancement

Anapole states in isolated, homogeneous, and isotropic dielectric spheres are studied theoretically in accordance with Mie theory, numerically by full-wave electromagnetic simulations and by measurements at microwave and millimeter-wave frequency. Depending on the size and material properties of the dielectric spheres, the practical limitations of detection and possible applications of nonradiating anapole states are investigated. The electromagnetic signature, generated by anapole states of a spherical dielectric scatterer, in terms of finite extinction cross section, is verified by measurements, for both its electric and magnetic versions, in silicon and alumina spheres, respectively. In addition, the existence and the detection of higher order and hybrid anapole states are demonstrated. Finally, an approach to engineer electric field hotspots in a subwavelength-sized gap between two magnetic anapole coupled alumina ceramic spheres is demonstrated.
First Experiments and Radiographs on the MegaJOuLe Neutron Imaging Radiography (MJOLNIR) Dense Plasma Focus

A dense plasma focus (DPF) is a relatively compact coaxial plasma gun, which completes its discharge as a Z-pinch. These devices are designed to operate at a variety of scales to produce short (<100 ns) pulses of ions, X-rays, and/or neutrons. LLNL recently constructed and brought into operation a new device, the MegaJOuLe Neutron Imaging Radiography (MJOLNIR) DPF, which is designed for radiography and high-yield operations. This device has been commissioned and has achieved neutron yields of up to 3.8E11 neutrons/pulse at 2.5-MA peak current while operating at up to 1 MJ of stored energy in its original pulsed power configuration. MJOLNIR is equipped with a wide range of diagnostics, including nuclear activation detectors, neutron time-of-flight (nToF) detectors, a fast-framing camera, optical light gates, and a time-gated neutron and X-ray imager. LLNL also runs unique particle-in-cell (PIC) simulations of DPF discharges in the Chicago code and has gained significant insight into the various physical factors that influence neutron yield. MJOLNIR is one of the first DPFs whose design and continual upgrades are heavily influenced by model predictions. In this article, we describe insights from modeling, device operation, and recent results. Comparisons between modeling predictions and measurements, as well as X-ray and neutron images are presented.
Prevalence of Skin Diseases Among Schoolchildren in Qualiobya Governorate

Pediatric dermatology may be a paramount limb of dermatology that bargains for those diagnosis, treatment, What's more counteractive action of skin maladies happening in infancy, childhood, and youth. Skin maladies are basic in children, those frequency continuously 9–37% everywhere the universe. The aim of the present study was to assess prevalence of skin diseases among school children in Qualiobya Governorate. This investigation might have been led as An cross sectional healing center built contemplate. This contemplate that might have been led for pediatric patients suffice from different pediatric dermatoses. Patients were recurrited starting with the individuals going to the outpatient facility about dermatology What's more Andrology division from claiming Benha school healing centers Throughout the period from January 2018 with January 2019statistically non-significant difference between patients and control groups regarding socio-demographic characters. Most of our studied subjects were males [53.3%]. Main bulk of studied patients were in school age group [51.7%]. while the lowest number of studied patients were in infantile group [5%]. 25 [OH] Vit d lack might have been connected with pediatric dermatoses Also seriousness of diseases and indicated advertisement Similarly as the mossycup oak usually predominant took after Eventually Tom's perusing vitiligoand Along these lines we camwood Think as of that low serum level of 25 [OH] Vit d will be prognostic marker to a portion pediatric dermatosesin the examined assembly for egyptian patients.
Considering subnational support of climate change policy in the United States and the implications of symbolic policy acts

ABSTRACT While existing literature points to a number of factors that shape subnational support for climate policy, the extant scholarship has struggled to illustrate a clear and convincing explanation for subnational support of climate policy efforts and whether that support is meaningful. By looking to the United States, where subnational actors have an important role in environmental policy development and implementation, we find that legislators’ ideology and membership in the minority party determines sponsorship of climate bills. Specifically, liberal legislators with the fewest opportunities to signal efficacy to their constituents are the most likely to support subnational climate change policy efforts. Given that the individuals most likely to support climate policy efforts are those without capacity, many support efforts may be more symbolic than substantive.
Revisiting the “Quartz Problem” in Lithic Studies: A Review and New, Open-access, Experimental Dataset

ABSTRACT Quartz artefacts are common components of flaked stone assemblages worldwide. However, flaked quartz can appear similar to quartz fractured by natural and other (non-flaking) cultural processes. Despite attempts to address this “quartz problem”, the analysis and interpretation of flaked quartz assemblages remain problematic. Here we present a review of literature investigating the quartz problem, and a case study that examines an experimentally flaked assemblage – including the presence of “markers” widely reported to be diagnostic of knapped quartz. The results suggest that freehand knapping of a vein quartz block will produce mostly shatter and small, undiagnostic pieces with few artifacts exhibiting previously suggested markers. An integrated approach, considering physical features of individual quartz pieces, along with assemblage composition, characteristics and context more broadly, is therefore crucial. The dataset created for this study is freely available, providing the first example of an open-access dataset to aid study of flaked quartz assemblages worldwide.
The effects of racial status threat on White Americans’ support for Donald Trump: Results of five experimental tests

Prior theory and research suggest that threats to the status of White Americans may increase support for Donald Trump. Consistent with this, one previous experiment conducted in early 2016 documented this effect (Major et al., 2018), finding that making salient the declining White majority in the United States increased support for Trump’s presidential candidacy among White participants with high levels of ethnic identification. We report the results of five very similar experiments (total N = 3,076) also conducted in 2016, including one conducted on a national probability sample. The first experiment (conducted in January 2016) found that racial status threat increased Whites’ support for Trump. The other four (conducted from February to October 2016), however, all found null results, and an internal meta-analysis of the five studies found no significant main effect overall. Additionally, none of the studies found an interaction of racial demographic shift and ethnic identification in which racial demographic shift increased Trump support among high-identifying Whites. We conclude by discussing a variety of potential explanations for our findings, including (a) that racial status threats did not increase Whites’ Trump support, (b) that racial status threats increased Trump support early in the 2016 election cycle, but the role of this factor in Trump support declined over time, or (c) that this pattern is an example of a broader tendency of declining experimental treatment effects on candidate support over time in campaigns (Kalla & Broockman, 2018).
Women's Age of First Exposure to Internet Pornography Predicts Sexual Victimization

Increases in the availability and accessibility of Internet pornography have led growing numbers of children to become consumers of sexually explicit media. Research has identified negative behavioral and attitudinal outcomes associated with Internet pornography use in childhood and adolescence, but few studies have examined sexual victimization as a correlate. The current study aimed to examine the association between age of first Internet pornography exposure and sexual victimization. Data from 154 undergraduate women yielded several important findings. Women who viewed Internet pornography unintentionally at a younger age reported more sexual victimization. Specifically, compared to women who were first unintentionally exposed to Internet pornography at age 14 or older, women with unintentional first Internet pornography exposure before the age of 14 reported more childhood sexual abuse, sexual abuse in adulthood, and more instances of sexual coercion and aggression. Women with younger age of unintentional Internet pornography exposure also reported more interpersonal sexual objectification than women who had never viewed Internet pornography at all. Age of first intentional exposure to Internet pornography was not related to women’s self-reported experiences of objectification, although this may be because women’s intentional exposure tended to happen at older ages. Overall, the results of this study suggest that women’s unintentional Internet pornography exposure at a young age may contribute to a potentially harmful sexual socialization. Early Internet pornography exposure in childhood should be considered a potential risk factor for women’s sexual victimization.
Protective effects of wheat and barley grasses on hepatotoxicity induced by tramadol in male rats

Nowadays tramadol is becoming abused more popular among teens in most countries worldwide; especially between males. The aim of the present study was to investigate the protective effects of barley and wheat grasses on hepatotoxicity induced by tramadol in male rats. Thirty male albino rats weighing (150-200 g) were divided into two main groups: The first group (5 rats) was fed on basal diet and kept as a negative group (G-). The second group (25rats) was fed on basal diet and administrated tramadol (30mg/kg/day) orally for 30 days. After that, the rats were divided into five subgroups as following: Subgroup (1): kept as a positive group (G+). Subgroups (2&3) were given tramadol +wheat grass (250 and 500mg/kg body weight) and Subgroups (4&5) were given tramadol + barley grass (250 and 500mg/kg body weight) orally for 30 days. The biochemical data showed elevated liver enzymes; alanine transaminase (ALT), aspartate transaminase (AST), Alkaline Phosphatase (ALP), total bilirubin, direct bilirubin and in direct bilirubin as well as liver weight in tramadol group (G+). A significant increase in malondialdehyde (MDA) and nitric oxides (NO) were also noticed in (G+). While, there were a significant decrease in glutathione peroxidase (GPx), reduced glutathione (GSH) and catalase (CAT) levels in tramadol group (G+). Concomitant use of barley and wheat grass with tramadol induced improvement in the hepatotoxic effects. The best results were recorded for the groups treated with high dose (500mg/kg body weight) of barley and wheat grass. It was concluded from the present results that administration of barley and wheat grass with tramadol can ameliorating tramadol-induced hepatotoxicity which might be due to its antioxidant potential.
Exploring EFL Writing Teaching Through the Integrated Skills Approach: A Case Study in the Saudi Context

This study aims to explore the teaching practices of EFL writing that employ the integrated skills approach. It investigates the benefits and challenges associated with teaching writing that uses the integrated skills approach. The study also aims to provide solutions to the challenges faced by the EFL teachers in teaching writing skills. This study uses a qualitative approach by utilizing two instruments: diary writing of event logs in the first phase, and semi-structured interviews in the second phase. The data were collected in a Saudi university at a Preparatory Year Program (PYP). The sample included four general track teachers. After the analysis of the data, the findings revealed that the integrated skills approach can facilitate students’ output; however, students’ lower-level of proficiency, a large number of students in writing classes, and time constraints can negatively affect the teaching practices. Suggestive measures were proposed to eliminate the negative aspects that might hinder the implementation of the integrated skills approach while teaching writing skills. Based on the findings, pedagogical implications and directions for future research have been put forward.
Robotic-Based Well-Being Monitoring and Coaching System for the Elderly in Their Daily Activities

The increasingly ageing population and the tendency to live alone have led science and engineering researchers to search for health care solutions. In the COVID 19 pandemic, the elderly have been seriously affected in addition to suffering from isolation and its associated and psychological consequences. This paper provides an overview of the RobWell (Robotic-based Well-Being Monitoring and Coaching System for the Elderly in their Daily Activities) system. It is a system focused on the field of artificial intelligence for mood prediction and coaching. This paper presents a general overview of the initially proposed system as well as the preliminary results related to the home automation subsystem, autonomous robot navigation and mood estimation through machine learning prior to the final system integration, which will be discussed in future works. The main goal is to improve their mental well-being during their daily household activities. The system is composed of ambient intelligence with intelligent sensors, actuators and a robotic platform that interacts with the user. A test smart home system was set up in which the sensors, actuators and robotic platform were integrated and tested. For artificial intelligence applied to mood prediction, we used machine learning to classify several physiological signals into different moods. In robotics, it was concluded that the ROS autonomous navigation stack and its autodocking algorithm were not reliable enough for this task, while the robot’s autonomy was sufficient. Semantic navigation, artificial intelligence and computer vision alternatives are being sought.