Miracle-dz/UniFAR-FTUs huggingface dataset:
A Multi-Angle Hierarchical Differential Evolution Approach for Multimodal Optimization Problems

Multimodal optimization problem (MMOP) is one of the most common problems in engineering practices that requires multiple optimal solutions to be located simultaneously. An efficient algorithm for solving MMOPs should balance the diversity and convergence of the population, so that the global optimal solutions can be located as many as possible. However, most of existing algorithms are easy to be trapped into local peaks and cannot provide high-quality solutions. To better deal with MMOPs, considerations on the solution quality angle and the evolution stage angle are both taken into account in this paper and a multi-angle hierarchical differential evolution (MaHDE) algorithm is proposed. Firstly, a fitness hierarchical mutation (FHM) strategy is designed to balance the exploration and exploitation ability of different individuals. In the FHM strategy, the individuals are divided into two levels (i.e., low/high-level) according to their solution quality in the current niche. Then, the low/high-level individuals are applied to different guiding strategies. Secondly, a directed global search (DGS) strategy is introduced for the low-level individuals in the late evolution stage, which can improve the population diversity and provide these low-level individuals with the opportunity to re-search the global peaks. Thirdly, an elite local search (ELS) strategy is designed for the high-level individuals in the late evolution stage to refine their solution accuracy. Extensive experiments are developed to verify the performance of MaHDE on the widely used MMOPs test functions i.e., CEC’2013. Experimental results show that MaHDE generally outperforms the compared state-of-the-art multimodal algorithms.
Success rate of salvage surgical intervention of acutely thrombosed arteriovenous fistula in hemodialysis patients

Background: Establishing and maintaining vascular access for hemodialysis in end stage renal disease (ESRD) patients are important prognostic factors for patient survival. The loss of vascular access, most frequently due to thrombosis, remains one of the most challenging obstacles in their long-term management. Success rate of surgical intervention of the vascular access in patients with acutely thrombosed arteriovenous fistulas (AVF) is still a controversial issue. Objective: To assess the success rate of salvage of acutely thrombosed arteriovenous fistula through surgical intervention. Patient and Methods: Uncontrolled clinical trial, was conducted over the period from November 2018 to `October 2019 on 52 patients with acute thrombosis of autogenous AVF in Suez Canal University Hospital. Patients were treated using open thrombectomy with or without surgical interventions as jump graft or re-insertion of anastomosis to correct juxta-anastomosis stenosis or re-anastomosis if needed regarding the cause. Results: The mean age was 51 +/- 14 years. The cause of thrombosis was stenosis in 13 patients (25%). Surgical intervention was successful to regain immediate functioning AVF in 34 patients (65.4%). The secondary patency rate after intervention was more than 6 months in 29 patients (85.3%). Jump graft with surgical thrombectomy in treatment of stenosis as a cause of thrombosis was the highest rate success in 8 patients (88.9%). Conclusion:Intervention with different surgical modalities for acutely thrombosed AVFs is a safe and effective procedure in many cases. It is associated with good success rates, low complication rates, and maintained long-term patency of vascular access.
Analysis of Students' Understanding of Concepts on Momentum and Impulse Material Using Research-Based Learning (RBL) Models

This study aims to analyze students' understanding of concepts in the material of momentum and impulses using research-based learning (RBL) models. This type of research is quantitative research with a descriptive approach. The population in this study were students of class XI of SMA 3 Bireuen, the subjects in this study were students of class XI2 of SMA 3 Bireuen as many as 30 students. The results of this study indicate that 30 students in class XI2. 53.3% of students in the category understood the concept, 20% students in the guessing category and 26.7% students in the don't understand the category. This shows students will better understand the concepts of momentum and impulses by using research-based learning models.
Iris recognition algorithm based on Contourlet Transform and Entropy

The iris is one of the most secure biometric types of information that is widely employed in authentication systems. In this paper we present a method for iris recognition based on the Contourlet Transform and Shannon Entropy which entails (i) the detection and segmentation of the iris, (ii) its normalization, (iii) the application of the Contourlet Transform, (iv) the generation of the iris descriptor, and (v) the matching between the query iris and those in the database. The proposed method has been tested with images taken from the popular CASIA-V4 and UBIRIS.v1 datasets and compared against other six recent iris recognition algorithms using the statistics EER, AUC and ARR. The results show a higher performance of the proposed method with a reduced computation time.
Behavior of Cackling Canada Geese during brood rearing

We studied behavior of Cackling Canada Goose (Branta canadensis minima, cacklers) broods between 1992 and 1996 on the Yukon Delta National Wildlife Refuge in western Alaska. An increase in time spent foraging by goslings during our study was weakly correlated with an increase in the size of the local breeding population. Amount of time spent feeding by adults and goslings increased throughout the brood rearing period. Overall, goslings spent more time feeding than either adult females or males, and adult males spent the most time alert. Time alert varied among brood rearing areas and increased with brood size, but there was no variation in time spent alert among years. Increases in feeding or alert behaviors were at a cost to time spent in all other behaviors. We suggest that there is not a simple trade-off between feeding and alert behavior in cacklers, but instead that time spent feeding and alert are optimized against all other behaviors. We suggest that forage quality and availability determines the amount of time spent feeding, whereas the threat of predation or disturbance determines the amount of time spent alert.
Comparison of Classifiers for Power Quality Disturbances with Wavelet Statistical Analysis

In this paper, an attempt is made to compare the Power Quality (PQ) recognition accuracy with efficient features. Initially, a few of the reliable statistical parameters such as the mean, standard deviation, Root Mean Square (RMS), form factor, crest factor, Shannon entropy, log entropy, normalized entropy, skewness, and kurtosis of eight synthetically generated PQ disturbances and the pure tone signal are computed. These statistical parameters are simple to compute and are of low-dimension. A host of classification techniques such as the K-nearest Neighbor (KNN), Discriminant Analysis (DA), Decision Tree (DT), Support Vector Machine (SVM), Naïve Bayes' (NB), and Random Forest (RF) have been put to test for performance appraisal to determine the discriminating ability of these parameters. Further, the applicability of multi-resolution Wavelet Transform (WT) has been explored to extract these chosen statistical parameters in the WT domain for a possible enhancement in recognition accuracy. The result shows, the RF remains the slowest with the highest accuracy while the performance of the DA remains the poorest. The WT has outperformed the baseline method of statistical analysis as revealed from our results. However, the KNN tends to provide the highest classification accuracy among all others for low feature dimension whereas the speed of response of DT has been fastest.
A Study on CAG Repeat Polymorphisms of the Androgen Receptor in Korean Androgenetic Alopecia - Preliminary Report -

Background: The androgen receptor (AR) is a conserved member of the nuclear receptor superfamily. Differences in the AR gene sequence are characterized mostly by a highly polymorphic trinucleotide repeat (CAG) encoding a polyglutamine stretch in the N-terminal domain. The transactivational activity of the AR might be inversely associated with the numbers of this CAG repeat chain, and the smaller numbers of CAG repeats are believed to be associated with androgenetic alopecia? (AGA). Objective: The purpose of this study was to investigate a possible etiologic association between Korean AGA and CAG repeat numbers in the AR gene. Methods: We compared CAG repeat numbers within the AR gene of 64 male Korean AGA patients with those of 40 normal male controls. Results: There was no significant difference in the number of CAG repeats between the Korean AGA patients and controls. There were no robust or significant correlations between (i) CAG repeat numbers and (ii) age of onset or severity of AGA in Korean AGA patients. Conclusion: This study suggests that AR receptor CAG polymorphisms in the Korean male population might not have a major role in susceptibility to AGA expression.
EFFECT OF WATER REGIMES ON YIELD AND QUALITY OF APPLE UNDER SEMI-ARID, LIBYA

This study, was carried out in 2011/2012, to investigate the yield and quality parameters of apple fruits (double red delicious) with different irrigation systems; surface and trickle irrigation and with different water levels; 100, 75 and 50 % of ETc. Traditional irrigation (rainfall irrigation) presented 34.8% from ETc. The water irrigation requirement was determined by using Penman-Monteith’s equation. An increase in fruit yield, properties and quality (fruit diameter, fruit weight, total soluble solid and sugar) has been noted with trickle irrigation method comparing with surface and rainfall irrigations. The highest fruit diameter (80.9 mm), fruit mass (216.3 g), extra and class 1 fruit ratios (36.2 and 36.5%), total soluble solid (1.551 ton/fed) and sugar (1.38 ton/fed) were observed with DET100 treatment. To obtain a high quantity and quality apples, DET100 treatment with 100% ETc and trickle irrigation system are recommended during transition from rainfall and surface irrigation to trickle irrigation for similar climatic and soil conditions. The results showed that trickle irrigation system increases the qualitative and quantitative properties of apple fruits.
Mutational profile of Diffuse Large B-cell Lymphoma with central nervous system relapse: analysis of CBioPortal for Cancer Genomics database

In this study, based on the information presented in the specialized resource CBioPortal for Cancer Genomics database, the data on the diffuse large B-cell lymphoma (DLBCL) mutation profile detected by next generation sequencing (NGS) methods have been analyzed. The features associated with a high risk of secondary central nervous system (CNS) involvement have been highlighted. In patients with DLBCL and secondary CNS involvement, the most frequently mutated genes were MYD88, PIM1, CARD11 and CD79B. These genes related to the BCR/NF-kB signaling pathway. The MYD88, PIM1 and CD79B genes mutations were often combined and, in total, occurred in 39.6% of cases in patients with CNS relapsed DLBCL.
Characteristics of the Admissions of Old-old Patients to the Emergency Department

Aim: Through advances in technology and medicine, life expectancy is longer than before. The area covered by elderly people in the population pyramid has been changing over the years. Emergency departments are often used by elderly patients. It increases the density and fullness in already-crowded departments. In this study, we aimed to examine characteristics of the admissions of old-old people through the EDs and we wanted to discuss the precautions and regulations that might be taken in order to improve the quality of care and management. Methodology: This study was carried out cross-sectionally and retrospectively in the one-year period between 01.01. 2017-31.12. 2017 in a department of emergency medicine. Patients' age, gender, the hours of admissions to the emergency department, the month of admissions, reasons for admissions, diagnoses, consultations, final status, the place of hospitalization, the name of the hospitalization department and the number of readmissions in a one-year period were recorded in the study form. The study data were analyzed with SPSS for Windows 22.0. P < 0.05 was considered statistically significant. Results: 4331 of these patients were included in the study. The mean age of the patients was 85.25 ± 3.90 and 60.5% of them were female. According to the months, the first three of the admission months were December, November and October (9.7%, 9.6%, 9.2% respectively). The most common admission was in the 08: 00-15: 59 time zone with 47%, followed by 41.8% with the 16: 00-23: 59 time zone.4331 patients included in the study admitted to the emergency department 12.988 times during the study period. 46.2% of the patients admitted to the department once, 53.8% of them admitted 2 times and more. The discharge rate of patients who were admitted only once was 84.2% and the rate was 88.4% for twice and more admissions. Conclusion: The existence and increasing number of this population should not be forgotten in changes to be made in emergency departments and other parts of the health system. Efforts should be made to improve the quality of care and to train staff to manage these patients more quickly and safely.
Sexual satisfaction and associated individual factors among midlife and older people in Ile-Ife, Southwest Nigeria: implications for sexual and reproductive health

Sexual satisfaction refers to individual subjective assessment of the level of satisfaction or happiness arising from their sexual relationship. Sexual satisfaction is a key measure of sexual health that is intricately linked to marital satisfaction and quality of life. Across the world, poor sexual satisfaction has been widely reported to cause depression and other mental challenges among all segments of men and women. However, the effects of sexual satisfaction among the midlife and older people deserves more research attention because the sexual health of these groups of men and women particularly older people are underserved in most sexual and reproductive health services. This may undermine the sexual and reproductive health and rights of older men and women. In Nigeria, the current National Reproductive Health Policy particularly notes that the health issues of older population groups are largely ignored in the reproductive health field. It also stressed that the increasing population of older persons in the country demands more attention to the health issues including sexual health issues of older persons.
High efficiency 6-junction solar cells for the global and direct spectra

We show 6-junction inverted metamorphic solar cells with high efficiencies under both the global and direct spectrum, and discuss improvements to device components. High voltage AlGaInP subcells are demonstrated on GaAs substrates miscut 2° towards (111)B by using Sb surfactant to reduce atomic ordering. This miscut enables high voltage and low dislocation density GaInAs subcells by using atomically-ordered GaInP-based graded buffers. One-sun efficiencies of 39.2 ± 1.3% under the global spectrum and 39.4 ± 1.1% direct spectrum have been demonstrated by using these high voltage subcell components. For high efficiency under the concentrated direct spectrum, low resistance is also necessary, which requires a challenging and nonintuitive optimization of tunnel junctions and heterobarriers. Increasing the thickness of a (Al)GaInAs spacer layer between the back surface fields (BSF) and tunnel junctions (TJ) of latticemismatched subcells reduces nonlinear resistance, which implies a detrimental interaction between the BSF and TJ. Concentrator devices with optimized spacer layers show reduced effective resistance and maintain fill factor ≫ 75% at 1100 suns. Device efficiencies under the concentrated direct spectrum peak at 47.1 ± 3.2% at 143 suns.
Experimental Hybrid AC/DC-Microgrid Prototype for Laboratory Research

This paper describes a flexible testbed of a hybrid AC/DC microgrid developed for research purposes. The experimental setup is composed of 3 AC and 6 DC distributed generator units which are emulated by using three-legs inverters and settable output filters. The microgrid architecture allows to validate control schemes upstream of the modulation stage of each inverter, by using real-time targets and Mat-lab/Simulink interface. Two independent real-time communication networks can be used. The first one is based on optical fibre technology, whereas the second one is an Ethercat communication network. Both of them are used for instrumentation purposes and to implement the primary control level of the microgrid. To implement secondary control schemes into the microgrid (or higher control levels), an additional optical fibre-based network is used, allowing to emulate scenarios with or without communication issues such as latency, data-losses and topology changes. The built microgrid can be splitted into AC-side (3 and/or 4 wires), DC-side and interlinking-side, where both the AC and the DC side can be operated independently, according to the required electrical topology. In this testbed, several control schemes, such as proportional-integral, proportional-resonant or predictive controllers, have been investigated. Realised experimental tests include load changes, plug-and-play and communication issues scenarios.
Reinforcement Learning Meets Cognitive Situation Management: A Review of Recent Learning Approaches from the Cognitive Situation Management Perspective

With Reinforcement Learning (RL), artificial agents learn reaching their goals “in the wild”, i.e., from interacting with their environments. By learning to perform the correct action(s) in the given situation, RL thus adopts an action or decision- centric problem orientation. Conversely, the field of Cognitive Situation Management (CogSiMa), more originating from the control field, focuses on managing the encountered situations, i.e., environment states, such that the desired goal situations are reached or maintained. Whereas both fields of research thus appear complementary in pursuing similar overall goals, RL and CogSiMa have largely evolved independently from each other, leading to terminological gaps, misconceptions and unawareness of potentially related research. The present review attempts to bridge these gaps by providing an integrated framework highlighting the intersections between RL and CogSiMa: We outline how RL in real-world problem domains relates to CogSiMa, aim to bridge the terminological gaps between these distinct communities, and hope to provide the grounding for a cross-fertilization between these distinct research areas. We contribute a review of recent RL developments and discuss their implications and potential for CogSiMa.
Modeling and Multimode Analysis of Electrically Driven Flying Car

Aiming at a flying car which can be used for land-air amphibious, the dynamic models of its land drive module and air flight module are built respectively to obtain the simulation model under different working conditions. In order to ensure that the simulation model can stably track the driving speed and other indicators, different controllers are designed for the land and air modules as the nominal control structures, respectively. A series of simulations of different working conditions for flying car are presented, such as straight-line driving on the ground to fly in the air. The results show that the vehicle can track the speed well under the straight-line driving condition, and it can track the height well under the hovering condition. The vehicle wheel vertical load and lateral load will decrease to zero during switching driving on ground to fly in the air. When it takes off completely, it will experience an oscillation process and finally stabilize.
Contemporary outcomes of debridement, antibiotics and implant retention in knee arthroplasty

Periprosthetic joint infection (PJI) is a major complication after knee arthroplasty, with approximately a quarter of knee arthroplasty revisions citing PJI as an indication. With the demand for knee arthroplasty predicted to increase, coupled with a lack of evidence for decreasing PJI risk, an appreciation of the burdens of PJI on both patients and health care systems is vital. Patients with PJI can experience a reduced quality of life as well as increased morbidity, whilst the management of PJI has significant economic implications. Surgical options include debridement, antibiotics and implant retention (DAIR), single-stage revision, two-stage revision and salvage procedures. DAIR involves the systematic debridement of all infected and unhealthy tissues coupled with directed antibiotic therapy, with definitive infection clearance the objective. In contrast to single- and two-stage revision procedures for PJI, DAIR does not involve the removal of fixed implants, with only modular components exchanged. Potential benefits of DAIR include reduced tissue destruction, reduced morbidity and reduced healthcare burdens, but with a higher reinfection risk compared to staged revision techniques, and utility largely restricted to acute bacterial PJI. A review of contemporary DAIR outcomes is of value given advances in the understanding of PJI biology; the development of consensus-based definitions for PJI diagnosis and treatment outcomes; and evolution of DAIR indications and technique. This review discusses outcomes of DAIR for knee PJI, published over the last two decades.
Effect of short term thermal aging on PVC films by the extended voltage response measurement method

As a result of various new appliances connecting to the low voltage grid (e.g. renewable power sources, electric vehicles etc.) the distribution grid has to face new challenges. Since the distributed power generation can cause reverse power flow, parts of the cables might become overloaded raising the temperature of the cable, hence decreasing its lifetime. In this paper the effect of short term thermal aging (3 and 6 hour long at 110°C) on PVC films were investigated by the Extended Voltage Response (EVR) measurement method and measuring Shore D hardness. The PVC samples contained four different plasticizer contents: 50, 40, 30 and 0 wt%. The results suggest that the EVR measurement method is a useful tool to follow the effect of short term aging.
Reconfiguring TDMA Communications for Dynamic Formation of Vehicle Platoons

Platooning is a promising concept used within the Intelligent Transportation System to increase efficiency and safety of road transportation. It is based on periodically sharing the kinematic status of the platoon members to allow reducing inter-vehicle distances in a safe way. This coordination is automatic and depends heavily on the wireless channel. A common technique to improve the channel properties is to use Time-Division Multiple Access (TDMA) that organizes the access to the wireless medium in slots assigned exclusively to each vehicle. However, while platoons are physical and dynamic, the corresponding dynamic reconfiguration of a logical TDMA frame is non-trivial. In this paper we address this Cyber-Physical problem resorting to the RA-TDMAp protocol to track the dynamics of a platoon, specifically joining, merging and leaving. In our solution, we include an adequate admission control block, to verify whether joining or merging can be accepted, and we present the state-machine that handles the reconfiguration process. We validate our TDMA reconfiguration mechanism with simulations using the Plexe/Vein/OMNeT++ framework. We show the effectiveness of the proposed mechanisms which ensures a synchronized start of the platoon control with the TDMA frame reconfiguration.