Miracle-dz/UniFAR-FTUs huggingface dataset:
A robust predictive feedback FPID controller using elephant herd virtual inertia optimization control algorithm in Islanded microgrid

Due to load shedding, circumvent equipment damage, and possible power outages in the electric power system. The continuity of power supply under the Islanded mode of operation in microgrid creates shrink in the power of the tie‐line, and frequency oscillation in the event of small load perturbations. Hence, there needs a sufficient capacity of distributed energy resources, proper power management, and a grid dynamic behavior to satisfy the load demand. Therefore, in this paper, an intelligent predictive feedback fuzzy controller (PFF) together with a conventional proportional–integral–derivative (PID) controller (PFFPID) using hybrid elephant herd virtual inertia (EVI) control optimization algorithm is proposed. The proposed controller is designed to optimize the operation based on considering the uncertainties of the grid situation in terms of weather conditions, energy backup capacity, and load profile. The three inputs provided to PFF are renewable power, battery power, and load power, as a membership function in different forms to find the power variation in terms of voltage, frequency, and current. Then to estimate the gain of each output power, the PID controller is used. The purpose of the EVI algorithm is used as a controller optimization algorithm to tune the PFFPID controller to compensate the load based on generated power to meet the load demand. Finally, the simulation is performed with several existing controllers and the result indicates that the proposed controller is robust with respect to random load perturbations and change in the parameter.
Toxicity Effects of Chinese Herbal ‘Five-seeds’ Formulation on Human Kidney HEK-293 and Chang Liver Cells

‘Five-seeds’ formulation (Lycium barbarum, Cuscuta chinensis Lam, Rubus idaeus, Schisandra chinensis, Plantago asiatica) have been used by Chinese medicine practitioner for the treatment of male infertility for a long time. The present study aims to investigate the potential toxicity effects of the individual herb used in ‘five-seeds’ formulation and as a concoction on human HEK293 and Chang liver cells, using cell viability MTT assay and SubG1 flow cytometry analysis. Percentage of cell viability from samples (1, 25, 50, 75, 100 mg/mL) decreased as the concentration increased. Half maximal inhibitory concentration (IC50) values indicated that Cuscuta chinensis, Rubus idaeus and Schisandra chinensis are among the most toxic herb samples on HEK293 cells, with the IC50 values less than 22 mg/mL. On the other hand, Rubus idaeus (IC50 value 20.1 mg/mL) and Schisandra chinensis (IC50 value 17.8 mg/mL) were found to have the highest toxicity effect on Chang liver cells. Plantago asiatica and Lycium barbarum (IC50 more than 67 mg/mL) are the least toxic herbs tested on both human HEK293 kidney and Chang liver cells. ‘Five-seeds’ herbal formulation had IC50 values of 33 mg/mL and 38.5 mg/mL on HEK293 and Change liver cells respectively, suggesting that ‘five seeds’ formulation has modulated the toxicity effect of the mixed herbs used in this formula. Apoptotic cells in SubG1 phase were also found to be significantly low for HEK293 (13.08%) and Chang liver cells (10.17%) with the treatment of 25 mg/mL of ‘five seeds’ formulation. Toxicity effect of five-seeds’ herbal formulation has seemingly been modulated when all the five herbs mixed as a concoction, and potentially non-toxic as a concoction to HEK293 kidney and Chang liver cells. However, more investigations should be done to draw a solid conclusion.
Can Supraspinatus Tears Contribute to Acquired Subcoracoid Impingement? A Radiological Study of Anterosuperior Cuff Tears

246 SUMMARY Backgroud. Many subscapularis (SubS) lesions represent the result of the progression of anterosuperior cuff tears, although their pathophysiology is still relatively unknown. The goal of this paper was to determine the influence of supraspinatus tears in the development of subcoracoid impingement and therefore SubS tears. Methods. This is a retrospective, controlled and single-blinded study. We analyzed 301 patients with rotator cuff pathology and an MRI study. The coraco-humeral distance and coracoid overlap were measured. The presence of supraspinatus and subscapularis lesions were also evaluated. Results. Supraspinatus tears were found to be associated with the presence of subscapularis tears (p = 0.003). A significant relationship (p = 0.002) was achieved between supraspinatus tears and inferior coraco-humeral distance, with average values of 8.4 ± 2.9 mm and 10.2 ± 3.2 mm in shoulders with and without supraspinatus tears respectively. On the opposite side, there wasn’t a significant association between supraspinatus tears and the coracoid overlap. Conclusions. This paper is, to our knowledge, the first to study the influence of supraspinatus tears in different parameters implied in subscapularis tears pathology, representing also the largest published sample on this theme, including 301 patients. Finally, this study offers an explanation for anterosuperior cuff progression pathophysiology, confirming that supraspinatus full thickness tears can lead to a secondary subcoracoid impingement and thus subscapularis tears.
A highly stable rhenium organosol on a DNA scaffold for catalytic and SERS applications

Highly stable Re nanoparticles (NPs) have been synthesized in an organic solvent for the first time through a homogeneous reduction route using DNA as a scaffold within 10 min at room temperature. Transfer of both (NH4)ReO4 and DNA salts to the organic layer has been executed by a two phase extraction procedure using TOAB (phase transfer catalyst) followed by successive reduction with NaBH4 resulting in the formation of highly stable Re NPs. By changing the molar ratio of the starting reagents and by varying other reaction parameters, the diameter of the synthesized Re NPs can be tuned. The average diameter of the Re NPs is found to be 1.5 ± 0.7 nm and 6.5 ± 1.5 nm for two different morphologies. The as-synthesized Re organosol has been applied in two distinct potential applications such as catalysis and SERS studies. The catalysis reaction has been done for the reduction of hexavalent chromium ions in the presence of thiosulfate for which the catalytic rate was found to be faster compared to previous reports. SERS activity was monitored using methylene blue (MB) dye as a model SERS probe and the observed enhancement factor (EF) value was 3.35 × 106 using Re NPs having an average diameter of 1.5 ± 0.7 nm. This is the highest EF value for Re organosol ever reported. The synthesized Re organosol has been found to be extremely stable for more than six months when kept in a refrigerator in a sealed container. Moreover, the synthesized Re0 NPs can readily be re-dispersed in all protic and non-protic solvents which can be used for further applications in other interdisciplinary areas.
An Enhanced Message Distribution Mechanism for Northbound Interfaces in the SDN Environment

Software-Defined Network (SDN), which is recommended as a new generation of the network, a substitute for TCP/IP network, has the characteristics of separation of data plane and control plane. Although the separation of the control plane brings a high degree of freedom and simple operation and maintenance, it also increases the cost of north–south communication. There are many additional modules for SDN to modify and enhance the basic functions of SDN. This paper proposes a message queue-based northbound communication mechanism, which pre-categorizes messages from the data plane and accurately pushes them to the apps potentially interested. This mechanism improves the efficiency of northbound communication and apps’ execution. Furthermore, it supports both OpenFlow and the protocol-independent southbound interface, and it has strong compatibility. Experiments have proved that this mechanism can reduce the control-response latency by up to 41% when compared with the normal controller northbound communication system, and it also improves the network situation of the data plane, such as real-time bandwidth.
Smartphone app-guided secondary prevention in patients with coronary heart disease

Type of funding sources: Foundation. Main funding source(s): Deutsche Forschungsgemeinschaft Background Coronary artery disease (CAD) is the leading cause of death worldwide. Lifestyle change is a crucial part of secondary prevention. Only 30% of CAD patients follow the corresponding guideline recommendations. The widespread adoption of smartphones offers the opportunity to integrate secondary prevention into the daily routine of CAD patients. Purpose The purpose of this study was to show that smartphone-guided secondary prevention (SGSP) could achieve lifestyle changes and a gain of disease specific knowledge among CAD patients. Methods We developed an app to integrate secondary prevention into CAD patients’ everyday life. The app provided a daily 15-minute program that included video-guided exercises, video sessions with background information about CAD, and a tool to record blood pressure and heart rate once a day. The SGSP app was tested with the primary outcome of 28-day adherence. The secondary outcome was a composite of self-reported behavioural changes, gain of knowledge about cardiovascular risk factors and an increase in quality of life. Results Of the 66 patients screened, 43 (65%) were included into the study and, of those, 17 (40%) used the app continuously for 28 days. From this group, 14 (82%) were physically more active and ten (59%) improved their dietary habits. Usage of the SGSP app was also associated with a gain of knowledge about cardiovascular risk factors (70% physical activity, 59% healthy diet). Conclusion The regular use of a SGSP app appears to support lifestyle changes in patients with CAD. Primary and secondary endpoints Results Overall(n = 17) P-Value Adherence (28 days) 17 (39.5) 0.34 Behavioural change Significantly increased physical activity no. (%) 14 (82.4) 0.08 Implemented a healthier diet no. (%) 10 (58.8) 0.64 Relevant gain of knowledge about CVRF Physical activity no. (%) 12 (70.6) 0.13 Unhealthy diet no. (%) 10 (58.8) 1.00 Smoking no. (%) 1 (5.9) 0.47 Stress no. (%) 7 (41.2) 0.13 Potential for long-term use Willingness to use the App over a long time period (>28 days), no. (%) 15 (88.2) 1.00 Abstract Figure.
Breaking or keeping the habits: exploring the role of legacy habits in the process of discontinuing organisational information systems

Users develop habits in relation to information systems (IS) to reduce the cognitive and behavioural efforts needed for using them. However, when these systems have to be discontinued, users face challenges regarding how to stop relying on their legacy habits. Despite their importance, we know little about how legacy habits shape the way users discontinue a legacy system. Through a comparative case‐study approach, in a large mortgage firm and an international telecommunication company, we identify three roles that these habits play during the discontinuance process. We demonstrate that legacy habits not only play an ‘inhibiting’ role by keeping users attached to legacy systems; they also play a ‘bridging’ role by acting as a common ground for users to start working with a new system and a ‘deterring’ role when users resent certain habits of working with the legacy systems, despite their orientation to keep relying on these habits. We contribute to the IS habit literature by extending the roles of legacy habits beyond an inhibiting role. We also enrich the conceptualisation of legacy habits beyond the individual level by showing that the socio‐technical conditions in which the habits are embedded impact the emergence and evolution of their roles during the discontinuance process. We discuss the implications of our findings for theorising and managing IS discontinuance process.
The effect of group size on reproduction in cooperatively breeding gray wolves depends on density

In cooperatively breeding species, large group size is often positively related to reproductive success and group persistence. We have a poor understanding, however, of how group sizes within a population affect reproduction particularly as density varies. We hypothesized that at low densities, wolves in both small and large groups would have similar reproductive rates. At high densities, however, wolves in small groups would have lower reproductive rates compared to those in large groups. Using empirical data from radio‐collared wolves in Idaho and Yellowstone National Park, WY, USA (1996–2012), we compared reproductive rates (i.e. proportion reproducing, litter size, pup survival) among small and large groups of wolves as density fluctuated within the populations. Reproductive rates were generally lower for individuals in small groups compared to those in large groups, particularly as density increased. Pup survival, however, was slightly higher for wolves in small groups compared to large groups except at very high densities. Polygamy increased with density regardless of group size, suggesting a polygamy threshold for wolves. Large group size resulted in less parturition failure, more breeding females per group, larger litter sizes, and ultimately more pups recruited per group. Large group size appears advantageous for several, but not all, aspects of reproduction particularly when population density is high.
A study to compare the outcomes of CO2 laser assisted myringoplasty versus conventional type1 tympanoplasty in small central tympanic perforations

Background: The standard treatment of tympanic membrane perforation is conventional surgical closure using myringoplasty or a tympanoplasty type 1. In this study the role of cabon dioxide (CO 2 )-laser-assisted de-epitheliazation of perforation margins and application of bioinert silastic sheet. Success rate was compared with conventional microscopic surgery. Methods: This was a comparative study containing 60 patients with small dry tympanic membrane perforation (diameter 1-3 mm). The causes of tympanic membrane perforations were mainly traumatic or the eardrum did not heal after spontaneous perforation caused by an acute otitis media or after surgery. The procedure was performed under local anaesthesia. CO 2 (acupulse) applied along the edge of the perforation until complete de-epitheliazation and application of bioinert silastic sheet in small dry perforation. Closure of eardrum perforation was monitored using an otoendoscope. Success rate of the CO 2 laser myringoplasty was compared with conventional type 1 tympanoplasty. Results: Complete eardrum closure occurred in 24 cases (80%), 06 patients (20%) had a residual perforation. The success rate of this procedure is lower than conventional type 1 tympanoplasty, which is 90-94%. There were no complications during and after the treatment. Conclusions: A closure rate of 80% (24/30) was achieved with a CO 2 -laser-assisted de-epitheliazation. This procedure can be offered carefully to selected cases with perforation size <3 mm, where the CO 2 facility is available before they undergo formal conventional microscopic surgery.
Nitric oxide regulation of c-di-GMP metabolism and biofilm formation in Shewanella woodyi

Cyclic-di-GMP signaling is used by many bacteria to control biofilm formation. As biofilm formation is an important survival strategy for many bacteria, the synthesis and degradation of cyclic-di-GMP is tightly regulated by enzymes containing domains with conserved GGDEF and EAL sequence motifs, respectively. In this report I characterize a protein with both cyclase and phosphodiesterase activities and demonstrate that it contributes to secretion of the extracellular polysaccharide matrix, an important step in early biofilm formation. A genomicaly adjacent protein, SwH-NOX, was also characterized to demonstrate its potential as a nitric oxide sensor.
Visual Analytics in Effects of Gross Domestic Product to Human Immunodeficiency Virus Using Tableau

As data becomes more accessible, visualization methods are needed to help make it easier to understand the information. Analyzing and visualizing data makes it easier to understand a dataset without having to read through it, and elucidate connections between two or more different datasets. Tableau is one of the most popular interactive data visualization software. By using Tableau, it is easy to find correlations between datasets, reorganize datasets through pivoting or joining them, and create visualizations such as geo map charts, geo bubble charts, table charts, line charts, pie charts, and treemap charts. This project aims to show the correlation between a country’s gross domestic product (GDP) and human immunodeficiency virus (HIV) through Tableau. Large data sets related to the GDP and HIV were gathered from open data sources. The data will be cleaned through Tableau and Excel, and correlations between datasets will be shown through variable charts with Tableau.
Minimum Grade Requirements for Economics Majors: Effects on Enrollments and Student Learning

This paper studies one college's policy requiring minimum grades in core courses for completion of the economics major. The policy reduced majors by approximately 6 percent. Grades of C-and D (requiring students to retake the course) dropped substantially, while grades of C (the minimum acceptable grade) did not change, and grades from C+ to B rose. Difference-in-difference analysis suggests that the policy caused the grade shift. Because C grades did not change and grades as high as B increased, I conclude that the policy caused increased effort by students who were below and somewhat above the performance standard.
The Results of Sex Abuse Prevention Education For Ethnic Minority Junior High School Students In Ha Giang Province Regarding Awareness

Education activities on prevention of sexual abuse for junior high school students who are ethnic minorities aim to prevent students from having attitudes and behaviors that are inconsistent with social standards, and keep the educational environment. healthy education, in order to implement the movement of building friendly schools, effective students, contributing to the achievement of education goals of the Party and State in the stage of industrialization and modernization of the land. country. Sexual abuse prevention education for students aims to help students see the consequences of sexual abuse, have dissatisfied attitudes towards the above actions, and consciously fight against behaviors. wrong; actively detect abusive manifestations, promptly inform teachers and parents of students to prevent sexual abuse from happening. The article analyzes and finds some suitable solutions to help a better school environment.
Earnings shocks: An event study on Boursa Kuwait

This study investigates the effects of earnings announcements on stock prices in Boursa Kuwait, formerly known as the Kuwait Stock Exchange (KSE). The data spans the period 2018–2020, and both positive and negative earnings announcements are employed as shock events and their effects assessed. The study results show that there is a statistically abnormal rate of return before and after the earnings announcements and that most abnormal returns are just after the earnings announcement. This most likely indicates that Boursa Kuwait is a semi-strong efficient stock market. One important implication is an indication that insider-related trading might be absent in Boursa Kuwait.
Connected Play in Virtual Worlds: Communication and Control Mechanisms in Virtual Worlds for Children and Adolescents

Technology plays an essential role in shaping youth’s communication and social interactions in online multiplayer games. Due to physical distancing restrictions during the COVID-19 global pandemic, online multiplayer games like Minecraft and Roblox are well-positioned to amplify healthy communication/social connections and mitigate the impact of social isolation. Research so far has been focused on how these gaming environments support youth development from the perspectives of individual stakeholders (e.g., caregivers, educators, designers, and developers). However, features of these games, such as communication and parental controls, are often misaligned with the ways in which children develop communication and social skills. Using a series of case studies of popular virtual worlds and online games, this paper provides an analysis of critical design features that serve youth throughout different stages of childhood and early adolescence. We offer three main contributions: (a) a comparison matrix of similarities and differences in communication and control features between platforms; (b) an evaluation of design features in selected virtual world platforms that promote safe and positive social interactions; and (c) a method for cross-platform comparison aimed at helping researchers, designers, and practitioners examine specific dimensions of social communication and play experience in virtual worlds.
Mathematical modelling of water sorption isotherms and thermodynamic properties of wastewater sewage sludge

This study was aimed at determining wastewater sewage sludge moisture sorption characteristics using a static gravimetric method at 303 K, 313 K and 323 K. Eleven mathematical models were adopted to simulate the experimental data, and the optimal model was analysed. The indexes included the net isosteric heat of adsorption (qst), differential entropy (△S), spreading pressure (π), net integral enthalpy (qin) and net integral entropy (△Sin) to evaluate the thermodynamic properties of the sludge. The isotherm curves exhibited type II behaviour according to the Brunauer--Emmett--Teller classification. The sorption isotherm fitting showed that the Gugghenheim--Anderson--de Boer model was able to reproduce the equilibrium moisture content evolution with water activity for a moisture range varying from 6% to 89% (0.991 < R2 < 0.999). The net isosteric heat of sorption and differential entropy were evaluated through direct use of moisture isotherms via the Clausius–Clapeyron equation and used to investigate the enthalpy–entropy compensation theory. The net isosteric heat and differential entropy obviously decreased as the equilibrium moisture content increased, which satisfied the compensation theory. The spreading pressure of the sludge sorption process decreased as the temperature increased at a given water activity and increased as the water activity increased at a given temperature. When the spreading pressure was at a fixed level, the net integral enthalpy decreased as the equilibrium moisture content increased, whereas the net integral entropy decreased as the equilibrium moisture content increased to a minimum value of −93.17, −98.34 and −93.28 J/(mol.K) at 303 K, 313 K and 323 K, respectively, and then tended to increase.
Synthesis and Application of Cu(II) Immobilized MCM-41 Based Solid Lewis Acid Catalyst for Aminolysis Reaction Under Solvent-Free Condition

In this paper, a Cu(II) immobilized periodic mesoporous organosilica (PMOs) was synthesized and used as a reusable solid Lewis acid catalyst for the aminolysis of epoxides under solvent-free conditions. An amide-based ligand, L-propylsilyl having a specific binding pocket was prepared and fabricated on mesoporous MCM-41 to produce mesoporous organosilica L-propylsilyl@MCM-41. Further, it has been utilized for anchoring Cu(II) ions under controlled reaction conditions to yield solid Lewis acid catalyst Cu(II)-L-propylsilyl@MCM-41. The synthesized catalyst 3 exhibits significantly higher catalytic activity for aminolysis compared to hitherto known solid Lewis acid catalysts. An extensive range of β-amino alcohols with high regio and stereoselectivity were prepared by using catalyst 3. The catalyst was recovered easily and reused seven times without any loss in its catalytic activity. Furthermore, the synthesis of clinically significant propranolol (β-blocker) from α- naphthyl glycidyl ether was attained successfully using catalyst 3 in a very decent yield.