Miracle-dz/UniFAR-FTUs huggingface dataset:
Coordinated Charging Control of Electric Vehicles While Improving Power Quality in Power Grids Using a Hierarchical Decision-Making Approach

As electric vehicles (EVs) are connected to the distribution power system, EV owners desire to charge their EVs economically, reliably, confidentially and without requiring major modification to the charging systems in their EVs. At the same time, the increasing EV connections to the distribution power system can increase the electric load demand and decrease the power quality (PQ) of the power system due to the charging current of the EV chargers. It is, therefore, necessary to devise novel strategies for the coordination of the connection of EVs at the distribution level. Although different control methods have been proposed previously, most of these solutions require costly advanced infrastructures and computational resources. In this paper, a charging control system (CCS) using a hierarchical decision-making (HDM) approach is devised that can be easily applied for the economical and reliable charging of commercial EVs with minor modifications while improving the PQ in the power grids. The HDM approach includes a primitive energy management strategy and an adaptive droop control for the real-time operation. A thorough investigation of the effectiveness of the proposed CSS to meet the major needs of EV owners while improving the PQ of the distribution network has been carried out. The results from the case studies show that the CCS can satisfy the preferences of the EV owners, while improving the PQ of distribution grids. Specifically, the CCS can meet the economical and reliable EV charging for the EV owners, and at the same time maintain the voltage deviation within the acceptable PQ limits.
New approach of non-linear fitting to estimate the temporal trajectory of the COVID-19 cases

COVID-19 was declared, in March 2020, as a pandemic by the World Health Organization, and has since called attention to the monitoring given by the Internet and other means of communication for statistical data related to the number of cases of infected patients in healthcare systems, number of recovered and number of deaths with daily update of new and accumulated data. Some studies have been developed to estimate the temporal evolution of data related to COVID-19 to try to predict incidence and lethality scenarios, among other information about this disease. This work aims to determine when and how
Enhancement of Movement Intention Detection Using EEG Signals Responsive to Emotional Music Stimulus

Recent psychological and neurological studies suggest that human motor preparation and execution are largely affected by the subjective emotional state. Thus, external emotion stimuli can be a potential tool to enhance the detectability of movement intention from pre-movement neural signals. This article investigated whether emotion-evoking music stimulus could improve the performances of a fully predictive Brain-Computer Interface (BCI) system for movement intention detection. For this purpose, electro encephalo graphical (EEG) signals were recorded from twelve healthy subjects under three emotional conditions: happy, sad, and neutral. The emotions were elicited using external music stimuli while they performed a wrist extension action. Additionally, support vector machine-based offline and pseudo online testing schemes were employed to solve a binary classification problem for determining movement intention from pre-movement EEG. EEG power analysis showed that happy music stimulus resulted in an early occurrence of event-related desynchronization in alpha band compared to other emotional states. Happy emotional stimuli also resulted in comparatively better performances in both offline and pseudo online testing paradigms. The results of this article suggest that external happy music stimulus could enhance the early and accurate detectability of human self-paced movement intention and thus could contribute to the predictive capability of state-of-the-art assistive BCIs.
An Analysis of Reading Comprehension Questions in English Textbooks for SMAN Kota Padang: HOTS

This paper presents the investigation on the reading comprehension questions found in the textbooks for Senior High School EFL classrooms in Padang, West Sumatra related to the level of the reading comprehension questions. A basic premise is that higher-order thinking skill has become a major theme in education, however, to what extent EFL teachers have applied it, does not clearly defined yet. This study was carried out in EFL classrooms in four senior high schools in Padang, West Sumatra, Indonesia aimed at identifying the level of reading comprehension questions. All reading comprehension questions found in the English textbooks used by the students at all grades at public senior high school were analyzed using Higher Order Thinking Skill category. Ten textbooks were identified used by the English teachers in SMA Negeri Kota Padang. The findings show that the level of the reading comprehension questions found in those textbooks were mostly in the lower level (LOTS). Some of the questions found in the textbooks have already in HOTS category, however, the number was still far below LOTS questions. Therefore, it is suggested that teachers need to use other sources besides textbook analysed in this research to provide students with higher-order questions in order to encourage the student to have critical thinking.
Epitopos imunodominantes da MSP1a de Anaplasma marginale 
e suas aplicações diagnósticas e vacinais

Anaplasmosis, a persistent intraerythrocytic infection of cattle by Anaplasma marginale, causes severe anemia and a higher rate of abortion, resulting in significant loss to both dairy and beef industries. Clinical diagnosis is based on symptoms and confirmatory laboratory tests are required. Currently, all the diagnostic assays have been developed with whole antigens with indirect ELISA based on multiple epitopes. In a pioneer investigation we demonstrated the use of critical motifs of an epitope as biomarkers for immunosensor applications. Mimotopes of the MSP1a protein functional epitope were obtained through Phage Display after three cycles of selection of a 12-mer random peptide library against the neutralizing monoclonal antibody 15D2. Thirty-nine clones were randomly selected, sequenced, translated and aligned with the native sequence. The consensus sequences SxSSQSEASTSSQLGA was obtained, which is located in C-terminal end of the 28-aa repetitive motif of the MSP1a protein, but the alignment and sequences‟ variation among mimotopes allowed us to map the
Efficient Critical Point Detection for Curvilinear Structures Using a Ring-Like Ray-Shooting Model

The correct location and identification of critical points, including terminations, three-branch points, and four-branch points, for curvilinear structures in images is a crucial task in many curvilinear structure reconstruction processes. Few methods have been proposed to detect all three types of critical points simultaneously. In this article, we upgraded the existing ray-shooting model to a multifunctional ring-like ray-shooting model that can efficiently detect all types of critical points for curvilinear structures at the same time. First, we measured the minimum and maximum radii of the region of interest based on a sphere-growing method and the modified ray-burst model, respectively. Second, the estimated minimum and maximum radii are used to determine the inner and outer radii of the ring-like ray-shooting model, allowing the proposed model to adaptively extract the pixel intensity distribution feature along the potential branches. Finally, the density-based spatial clustering of applications with noise (DBSCAN) algorithm is used to detect critical points of curvilinear structures by analyzing the number of clusters of pixel intensity distribution extracted from the ring-like ray-shooting model. The experimental results on multiple data sets confirmed that the proposed method can achieve very accurate detection results efficiently and provide the reconstruction of curvilinear structures with beneficial information.
Design Principles of Batteryless Transponder for Vehicular DSRC at 5.8 GHz

This article presents design principles for a totally batteryless and cost-effective wireless transponder, based on commercially-of-the-shelf (COTS) components. The transponder architecture is compliant with the physical layers of most common vehicular dedicated short range communications (DSRC) applications operating at 5.8 GHz. The paper is organized in two parts. We discuss firstly the design principles and system architecture, which includes both the energy harvesting and the back-scattering modes. The second part introduces a batteryless transponder prototype for vehicular DSRC, as result of the discussed design principles. In this part of the article reports a full set of experimental results, illustrating the consistency with the design principles, as well as the effective performance in terms of power consumption, energy efficiency and radio communication capabilities. In particular we report that at the distance of 1.05 m, a legacy road-side unit can establish both the down-link and up-link, with the latter requiring 37 s of charging time to enable 68 ms of data link at 8 Mbps.
Diammonium bis­[hexa­aqua­nickel(II)] deca­vanadate tetra­hydrate, (NH4)2[Ni(H2O)6]2V10O28·4H2O

The crystal structure of the title compound, (NH4)2[Ni(H2O)6]2V10O28·4H2O, comprises centrosymmetric [V10O28]6− anions that are linked via hydrogen bonding by two NH4+ cations, two [Ni(H2O)6]2+ cations, and four water mol­ecules into a three-dimensional structure. The compound is isotypic with other members of the [M(H2O)6]2(NH4)2V10O28·4H2O series (M = Mg and Co).
REF Codes: Intermediate Performance Oriented Fountain Codes With Feedback

In this article, a novel class of fountain codes with feedback, called relative-entropy-based fountain (REF) codes, is proposed. The transmitter of REF codes adapts the degrees of encoded symbols to make the degree distribution at the receiver close to the robust soliton distribution, where the distance between two distributions is measured by relative entropy. The proposed REF codes are shown to achieve excellent intermediate performance over binary erasure channels (BECs), and binary-input additive white Gaussian noise channels (BI-AWGNCs) for both unicast, and multicast scenarios. For multicast, a non-uniform input symbol selection scheme is proposed to enhance the performance of REF codes. Furthermore, since the feedback is imprecise under noisy channels, the concept “belief” is introduced to improve the reliability of REF codes. Theoretical analysis is performed for the proposed REF codes, with an upper bound, and an approximate lower bound of the intermediate performance of REF codes over BECs derived. Both theoretical analysis, and simulations show that the proposed REF codes outperform the state-of-the-art fountain codes with feedback, in terms of the intermediate performance, with low overhead.
IgM Memory B Cell Heterogeneity in Immune Responses to Pneumococcal Vaccination in HIV-positive and Healthy Individuals

Abstract Background: Both normal aging and HIV infection impact B cell functionality and lead to activation of resting B cells, memory cell depletion and altered gene expression. As a result, HIV+ individuals and the elderly fail to demonstrate robust and durable immune responses against pneumococcal polysaccharides. Herein, we assessed altered B cell function in high risk groups by utilizing single cell technology. Methods: HIV-positive individuals with CD4+T cell counts >200 on Antiretroviral Therapy (ART) and HIV-negative individuals age groups 21-40 and 50-65 received pneumococcal vaccination. Serum IgG and IgM PPS-specific antibodies were measured pre- and post-immunization using ELISA method. Evaluation of B cells was performed using flow cytometry and single cell RT-PCR. Results: IgM memory B cells are important players in responding to pneumococcal antigens and are present in reduced quantities in HIV+ and aging HIV- individuals. Single cell analysis of IgM memory B cells demonstrated heterogeneity and identified two unique subpopulations. One of the subpopulations represents B cells with higher expression of TACI and BAFF-R and is more likely to dominate in T-cell independent immune responses. IgD+IgM+memory B cells were present in equal proportions in both subpopulations. Conclusion: Pneumococcal vaccine responses in HIV+ and aging HIV- individuals are multifactorial and largely depend on the abundance and phenotypic characteristics of IgM memory B cells.
The study of genetic diversity of flat leeches

The conservation of species is one of the most important tasks of biology, which involves a comprehensive study and determination of the taxonomic hierarchy of various representatives of the fauna. Species composition of flat leeches requires thorough revision, as evidenced by ambiguous morphological descriptions due to anatomic features of glossiphoniids, which complicates the taxonomic identification of leeches of this group. The combination of methods of morphological identification and molecular genetic analysis allowed us to prove the belonging of A.hyalina as a third form of the species A.heteroclita along with A.heteroclita f.papillosa and A.heteroclita f.striata. Intraspecies genetic variability was 0.2%, which confirmed the genetic homogenity of the leeches of this species. The results obtained during the study demonstrate the effectiveness of the genetic diversity analysis within the comprehensive approach to the study of the species composition of flat leeches.
Previsão de Curto Prazo da Potência Consumida em Instalação de Médio Porte Utilizando um Conjunto de Redes Neurais Artificiais

Arthur Weyll∗, Eduardo F. Simas Filho∗, Kim Samejima† e Fabio da C. Cruz‡ ∗Programa de Pós Graduação em Engenharia Elétrica, PPGEE, Universidade Federal da Bahia UFBA E-mails: arthur.lucide@ufba.br, eduardo.simas@ufba.br †Departamento de Estatı́stica Instituto de Matemática, UFBA E-mail: samejimal@ufba.br ‡Department of Electrical and Computer Engineering, University of Québec at Trois-Rivières Trois-Rivières, QC, Canada E-mail: fabio.da. conceicao.cruz@uqtr.ca
Factors Affecting Job Satisfaction of Construction Workers in Can Tho City, Vietnam

The study aims to identify factors affecting the job satisfaction of construction workers in Can Tho City, Vietnam. Research data were collected from 145 workers who have been working on construction projects in Can Tho City. The Exploratory Factor Analysis (EFA) and the multivariate linear regression were applied to achieve the results. The research results show that factors that positively affect job satisfaction of construction workers are Working condition, Work environment, Nature of work, Compensation and benefits, and Leadership style. Finally, the study proposes several administrative implications to improve job satisfaction of construction workers in Can Tho City.
Numerical simulations of different models describing cerebrospinal fluid dynamics

The aim of this paper is to present an extensive overview of numerical simulations aimed at confirming and completing the theoretical results obtained in the analysis of some cerebrospinal fluid dynamics models which are treated from a purely mathematical view point. The present study is designed to support the first attempts in the approach to these physiological models from a more theoretical standpoint since their investigation in literature only concerns the modelization and the clinical feedback.
Early migration of precursor neurons initiates cellular and functional regeneration after spinal cord injury in zebrafish

Zebrafish have a remarkable capacity to regenerate following spinal cord (SC) injury but the responsible cellular events are not well understood. We used in vivo imaging and genetics to pin-point specific cellular processes controlling SC regeneration in zebrafish. We identified two temporally and mechanistically distinct phases of cellular regeneration in the SC. The initial phase relies on migration of precursor neurons to the injury, enabling rapid functional recovery, and activation of quiescent neural progenitor cells (NPCs). A second phase of regenerative neurogenesis compensates for both the lost tissue and cells depleted due to precursor neuron migration. We propose a critical role of precursor neurons recruitment in initiating neuronal circuit recovery and buying sufficient time for regenerative neurogenesis to take place. Taken together, our data suggests an unanticipated role of precursor cell recruitment in driving neural repair and functional recovery during the regenerative response. Graphical Abstract
Effect of Artesunate vs Memantine in Aluminum Chloride Induced Model of Neurotoxicity in Rats

Alzheimer disease is one of the commonest neurological diseases which is characterized by amyloid plaques accumulation in multiple brain regions. This study investigated the potential neuroprotective effect of artesunate on aluminum induced neurotoxicity vs memantine in rats. 40 male albino Wistar rats were divided randomly into 4 groups as follow: Group 1 negative control, group 2 positive control group induced by ammonium chloride, group 3 rats treated by NH4Cl + artesunate solution, group 4 rats treated by NH4Cl + memantine S.C. spatial Memory and Learning were evaluated using Morris Water Maze (MWM) test. Malondialdehyde (MDA) and reduced glutathione (GSH) levels were measured in cerebral cortex tissue homogenate. Tumor necrosis factor-α (TNFα) and interleukin-1 beta (IL-1β) concentrations were measured in rat cerebral cortex tissue homogenate using rat enzyme linked immunosorbent assay (ELISA) kits. Real-time quantitative reverse transcription-polymerase chain reaction (Real-time qRT-PCR) for Caspase-3, Bcl-2 and iNOS gene expression was measured in rat cerebral cortex. Slices from cerebral cortex were studied by histopathological examination. Artesunate significantly decreased MDA level and inhibited iNOS, caspase and upregulated Bcl-2 gene expression in cerebral cortex. ART increased significantly antioxidant level GSH, and decreased significantly TNF-alpha and IL-B levels. It reduced significantly 1ry retention latency, 2ry retention latency and initial acquisition latency. It also improved brain histopathology and decreased amyloid plaque deposition. ART exerted neuroprotective effect through oxidative stress correction and enhancement of antiapoptotic markers in neuronal cells of the cerebral cortex.
Prognostic Value of Combined; Cox-2, Cyclin D1 and P21 Expression in Colorectal Cancer (CRC) Patients: An Immunohistochemical Study

Background: Cyclooxygenase (COX) is a rate limiting enzyme in synthesis of prostanoids pathway and it has 2 isoforms (COX-1 and COX-2). It has many biological roles in inflammation and oncogenesis. Cox-2 was incriminated in performing disturbances in the cell cycle control in CRC, but its role of in CRC needs clarification of the mechanisms by which Cox-2 might affect the process of colorectal carcinogenesis. Cyclin D1 is an oncogene that regulates G1 phase progression to S phase of the cell cycle. Its stimulatory role on cell cycle is antagonized by Cyclin D1-dependent kinase (CDK) inhibitors like p21. P21 plays an essential role in cell cycle regulation; it may have a pro-apoptotic or an antiapoptotic role in cancer. P21 was found to have many roles in cancer; invasion metastases, cellular senescence and stem cells aging. The roles of combined expression of Cox-2, Cyclin D1 and P21 in CRC tissues and their role of prognosis and patients survival are not sufficiently clarified. Aim of the Study: To evaluate tissue expression of Cox-2, Cyclin D1 and P21 in CRC and to correlate such expression with pathological parameters, clinical and prognostic data of the patients. Methods: Cox-2, Cyclin D1 and P21 are evaluated in colon cancer tissues. Correlations between their level of expressions pathological parameters, clinical and prognostic data of patients were analyzed. Results: Cox-2, Cyclin D1 over-expression was associated with higher grade, higher incidence of occurrence of lymph node & distant metastasis and advanced stage (P = 0.000). Cox-2 was related to higher tumor recurrence rate (P = 0.04) and decreased overall patients survival rate (p = 0.002). (r correlation coefficient = +0.987). Conclusion: Cox-2 and Cyclin D1 are markers of poor prognosis colon cancer patients.
Electrophysiological assessment of retinal functions by ERG in Ischemia/Reperfusion (I/R) Allium cepa pre-treated mice

Retinal disorders are the one of the most challenging and complex degenerative diseases that need to be addressed because of rapid increase in the number of affected individuals. Most of the available treatments strategies are inadequate to exert permanent solution to the patients. Therefore, as an alternative approach we wanted to test the efficacy of Allium cepa(A. cepa) in an Ischemia/Reperfusion (I/R) mouse model. We orally administered the aqueous extract of A. cepa at different dosages 100 mg/kg, 200 mg/kg, 300 mg/kg 24 hrs prior to the surgery. Electroretinogram (ERG) analysis was carried out at 7 day, 21 day, and 28 day after the surgery. ERG recording depicted that A. cepa administration is able to increase the implicit time but not at the statistically significant level for which larger sample size and deeper analysis is required.