Miracle-dz/UniFAR-FTUs huggingface dataset:
On the prediction accuracy of movement speed and force from single-trial EEG recordings of healthy volunteers and stroke patients

Objective. Building efficient movement decoding models from brain signals is crucial for many biomedical applications. Moreover, decoding specific movement features, such as speed and force, may provide useful information at the expense of increasing the complexity of the decoding problem. Recent attempts to predict movement kinetics from the electroencephalogram (EEG) achieved classification accuracy levels not better than chance, stressing the demand for more accurate prediction strategies. Thus, the aim of this study was to determine the prediction accuracy of movement kinetics that can be achieved from single-trial EEG signals recorded from healthy volunteers and stroke patients. Approach. A strategy based on convolutional neural networks (ConvNet) was tested, since it has recently shown good performance in the classification of EEG signals. EEG data were minimally pre-processed, in order to mimic online classification scenarios. Main results. Overall accuracy for the 4-class classification problem using ConvNets was close to 80% for healthy volunteers and around 60% for stroke patients. Significance: These results represent a substantial improvement over previously reported results, suggesting that movement kinetics can be accurately predicted from single-trial EEG using ConvNets.
Radar Network Time Scheduling for Multi-Target ISAR Task With Game Theory and Multiagent Reinforcement Learning

In this paper, contrapose the impendency for multi-target high-resolution imaging with the limited resources, a radar network time scheduling is proposed based on game theory and reinforcement learning for inverse synthetic aperture radar (ISAR) imaging task regarding the targets in different radar beams. According to the demand for using the least amount of time to achieve the expected imaging resolution, the radar observation time scheduling problem is formulated. The game behaviour in the optimization problem is analyzed, and a time scheduling game is constructed to acquire the time scheduling strategy. For the purpose of finding out the optimal strategy profile, an equilibrium-based multiagent reinforcement learning (MARL) for the time scheduling game is proposed. Simulation results demonstrate that the time scheduling game belongs to exact potential game and can converge to the optimal strategy profile of the radar observation time scheduling problem by the proposed equilibrium-based MARL. Besides, the learning ability of the equilibrium-based MARL is proved.
Densities of -Carotene-Supercritical Carbon Dioxide Mixtures

The densities of β-carotene−supercritical carbon dioxide mixtures were measured at (308.15, 313.15, 323.15, and 333.15) K and within the pressure range (10 to 40) MPa using a vibrating tube densimeter. The reliability of this technique has been verified in our previous work.
A Novel Framework for the Coverage Problem in Battery-Free Wireless Sensor Networks

Battery-free wireless sensor network (BF-WSN) is a newly proposed network architecture to address the limitation of traditional wireless sensor networks (WSNs). The special features of BF-WSNs make the coverage problem quite different and even more challenging from and than that in traditional WSNs. This paper defines a new coverage problem in BF-WSNs which aims at maximizing coverage quality rather than prolonging network lifetime. The newly defined coverage problem is proved to be at least NP-Hard. Two sufficient conditions, under which the optimal solution of the problem can be derived in polynomial time, are given in this paper. Furthermore, three approximate algorithms are proposed to derive nearly optimal coverage when the sufficient conditions are unsatisfied. The time complexity and approximate ratio of the three algorithms are analyzed. Extensive simulations are carried out to examine the performance of the proposed algorithms. The simulation results show that these algorithms are efficient and effective.
A Common Grounded Type Dual-Mode Five-Level Transformerless Inverter for Photovoltaic Applications

This article presents a novel dual-mode five-level common grounded type (5L-DM-CGT) transformerless inverter topology for a medium-power application with a wide input voltage range (200–400 V). It consists of nine semiconductor switches, two inner flying-capacitors, and a small LC filter at the output side. Due to the direct connection of the negative terminal of the photovoltaic to the neutral point of the grid, there is no leakage current in the 5L-DM-CGT. Depending on the magnitude of the input voltage, the converter can operate in both buck and boost mode to produce the same ac output voltage. The theoretical analysis shows the advantages of the dual-mode inverter for various industrial applications. Finally, the laboratory test results are presented to verify the theoretical analysis. Measurement results show that the proposed inverter rated at 1 kW has around 97±1% efficiency over a wide range of load with a peak efficiency of 98.96% at 130 VA in buck mode and peak efficiency of 99% at 122 VA in boost mode.
Identification of Sequence Motifs for the Protein Components of Type IX Secretion System

Porphyromonas gingivalis is the bacterium responsible for chronic periodontitis, a severe periodontal disease. Virulence factors produced by this bacterium are secreted by the Type IX Secretion System (T9SS). The specific functions for each protein component of the T9SS have yet to be characterized thus limiting our understanding of the mechanisms associated with the translocation and modification processes of the T9SS. This study aims to identify the sequence motifs for each T9SS component and predict the functions associated with each discovered motif using motif comparisons. We extracted the sequences of 20 T9SS components from the P. gingivalis proteome that were experimentally identified to be important for T9SS function and used them for homology searching against fully sequenced bacterial proteomes. We developed a rigorous pipeline for the identification of seed sequences for each protein family of T9SS components. We verified that each selected seed sequence are true members of the protein family hence sharing conserved sequence motifs using profile Hidden Markov Models. The motifs for each T9SS component are identified and compared to motifs in the Pfam database. The discovered motifs for 11 components with known functions matched the motifs associated with the reported functions. We also suggested the putative functions for four components. PorM and PorW might form the putative energy transduction complex. PorP and PorT might be the putative O-deacylases. The identified motifs for five components matched the motifs associated with functions that related/unrelated to the T9SS.
Human capital formation and changes in low pay persistence

ABSTRACT This study presents new empirical evidence on the role of time trends in low pay persistence. We utilize population-wide tax records to track monthly labour market trajectories of initially low-paid workers. By performing age- and qualification-specific regressions, we find that low pay persistence reduces with time. However, the magnitude is highly heterogeneous across workforce characteristics. For a qualified worker in their early 20s, the risk of staying on low-pay declines by, on average, 5–10% points after one year. For a worker in their 50s, persistence remains almost unchanged regardless of their qualification level. We conclude that policy initiatives need to be more nuanced than a simple one-size-fits-all approach by accounting for time trends in low-pay persistence.
Polymorphism of SYNE2 Gene and its Association with Litter Size in Small Tail Han Sheep

1Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China 2College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471003, China 3Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China Article Information Received 15 August 2019 Revised 22 September 2019 Accepted 01 October 2019 Available online 25 June 2020
Cooperative Sweep Coverage Problem With Mobile Sensors

Sweep coverage plays an important role in many applications such as data gathering, sensing coverage and devices control. In this paper, we deal with the cooperative sweep coverage problem with multiple mobile sensors to periodically cover all positions of interest (PoIs) in the surveillance region. Different from traditional sweep coverage scenarios, the cooperative sweep coverage (CSC) problem allows the deployment of multiple sensors on the same trajectory to further reduce the sweep period or detection delay. We also consider the multi-sink sweep coverage (MSSC) problem where each mobile sensor must periodically transmit its collected data to a base station due to the limited storage capacity and power supply. Correspondingly, we propose two constant-factor approximations, namely <inline-formula><tex-math notation="LaTeX">${{CoCycle}}$</tex-math><alternatives><mml:math><mml:mrow><mml:mi>C</mml:mi><mml:mi>o</mml:mi><mml:mi>C</mml:mi><mml:mi>y</mml:mi><mml:mi>c</mml:mi><mml:mi>l</mml:mi><mml:mi>e</mml:mi></mml:mrow></mml:math><inline-graphic xlink:href="gao-ieq1-3008348.gif"/></alternatives></inline-formula> and <inline-formula><tex-math notation="LaTeX">${{SinkCycle}}$</tex-math><alternatives><mml:math><mml:mrow><mml:mi>S</mml:mi><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>k</mml:mi><mml:mi>C</mml:mi><mml:mi>y</mml:mi><mml:mi>c</mml:mi><mml:mi>l</mml:mi><mml:mi>e</mml:mi></mml:mrow></mml:math><inline-graphic xlink:href="gao-ieq2-3008348.gif"/></alternatives></inline-formula>, to minimize the maximum sweep period for these two problems. The approximation ratios of <inline-formula><tex-math notation="LaTeX">${{CoCycle}}$</tex-math><alternatives><mml:math><mml:mrow><mml:mi>C</mml:mi><mml:mi>o</mml:mi><mml:mi>C</mml:mi><mml:mi>y</mml:mi><mml:mi>c</mml:mi><mml:mi>l</mml:mi><mml:mi>e</mml:mi></mml:mrow></mml:math><inline-graphic xlink:href="gao-ieq3-3008348.gif"/></alternatives></inline-formula> and <inline-formula><tex-math notation="LaTeX">${{SinkCycle}}$</tex-math><alternatives><mml:math><mml:mrow><mml:mi>S</mml:mi><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>k</mml:mi><mml:mi>C</mml:mi><mml:mi>y</mml:mi><mml:mi>c</mml:mi><mml:mi>l</mml:mi><mml:mi>e</mml:mi></mml:mrow></mml:math><inline-graphic xlink:href="gao-ieq4-3008348.gif"/></alternatives></inline-formula> are proved to be 4 and 6 respectively. As far as we know, <inline-formula><tex-math notation="LaTeX">${{SinkCycle}}$</tex-math><alternatives><mml:math><mml:mrow><mml:mi>S</mml:mi><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>k</mml:mi><mml:mi>C</mml:mi><mml:mi>y</mml:mi><mml:mi>c</mml:mi><mml:mi>l</mml:mi><mml:mi>e</mml:mi></mml:mrow></mml:math><inline-graphic xlink:href="gao-ieq5-3008348.gif"/></alternatives></inline-formula> is the first approximation for the sweep coverage problem with multiple sinks. We also provide two optimal algorithms for the CSC problem in one dimensional case and a useful insight regarding the MSSC problem with only one available sink. Finally, we conduct various numerical experiments to validate the effectiveness and efficiency of our designs.
Comparative Population Genomics of Bread Wheat (Triticum aestivum) Reveals Its Cultivation and Breeding History in China

The evolution of bread wheat (Triticum aestivum) is distinctive in that domestication, natural hybridization, and allopolyploid speciation have all had significant effects on the diversification of its genome. Wheat was spread around the world by humans and has been cultivated in China for ~4,600 years. Here, we report a comprehensive assessment of the evolution of wheat based on the genome-wide resequencing of 120 representative landraces and elite wheat accessions from China and other representative regions. We found substantially higher genetic diversity in the A and B subgenomes than in the D subgenome. Notably, the A and B subgenomes of the modern Chinese elite cultivars were mainly derived from European landraces, while Chinese landraces had a greater contribution to their D subgenomes. The duplicated copies of homoeologous genes from the A, B, and D subgenomes were commonly found to be under different levels of selection. Our genome-wide assessment of the genetic changes associated with wheat breeding in China provides new strategies and practical targets for future breeding.
Big Data Velocity Management–From Stream to Warehouse via High Performance Memory Optimized Index Join

Efficient resource optimization is critical to manage the velocity and volume of real-time streaming data in near-real-time data warehousing and business intelligence. This article presents a memory optimisation algorithm for rapidly joining streaming data with persistent master data in order to reduce data latency. Typically during the transformation phase of ETL (Extraction, Transformation, and Loading) a stream of transactional data needs to be joined with master data stored on disk. To implement this process, a semi-stream join operator is commonly used. Most semi-stream join operators cache frequent parts of the master data to improve their performance, this process requires careful distribution of allocated memory among the components of the join operator. This article presents a cache inequality approach to optimise cache size and memory. To test this approach, we present a novel Memory Optimal Index-based Join (MOIJ) algorithm. MOIJ supports many-to-many types of joins and adapts to dynamic streaming data. We also present a cost model for MOIJ and compare the performance with existing algorithms empirically as well as analytically. We envisage the enhanced ability of processing near-real-time streaming data using minimal memory will reduce latency in processing big data and will contribute to the development of high-performance real-time business intelligence systems.
Rendimiento del crecimiento y perfil de la sangre de gallos jóvenes por la administración del champiñón ostra (Ostreatus pleurotus) en agua y alimento

Este estudio investigó el rendimiento del crecimiento y el perfil sanguíneo de 240 gallos jóvenes expuestos a diferentes niveles de champiñón ostra (Pleurotus ostreatus Jacq ex fr.) en agua y piensos durante 12 semanas. Las aves fueron criadas durante 3 semanas y posteriormente subdivididas en ocho grupos de tratamiento siguiendo un diseño experimental factorial de 2 x 4 consistente en 2 vías de administración (agua y piensos) cada una a 4 niveles de inclusión (0, 5, 10 y 15 ml/litro de agua y 0 , 500, 750 y 1000 ppm, respectivamente). Cada tratamiento contenía 30 aves con tres repeticiones de 10 aves cada una. Los datos obtenidos fueron sometidos a un diseño completamente aleatorio. Las aves en 1000 ppm y 15 ml de niveles de inclusión de champiñones ostra en pienso y agua, respectivamente, tuvieron el mayor peso final (P < 0.05) y aumento de peso, y las mejores proporciones de conversión de alimento de 3,16 y 3,19, respectivamente. El PCV, HB, RBC, la proteína total y la globulina de los gallos jóvenes resultaron los más altos (P < 0.05) en la inclusión champiñón de ostra en 10 ml en un litro de agua. El colesterol total, los triglicéridos, el LDL y el VLDL fueron los más bajos (P < 0.05) en los gallos jóvenes a la inclusión de 1000 ppm de champiñón ostra en la alimentación. Los gallos jóvenes, tras la inclusión de 15 ml y 750 ppm de champiñón ostra en agua y en alimentación, respectivamente registraron el HDL más alto (49,50 mg/dL). Se concluyó que la administración de champiñones ostra en agua y piensos a 15 ml/litro y 750 ppm, respectivamente, podría adoptarse en la producción de pollos de gallo para mejorar el rendimiento del crecimiento y el perfil sanguíneo.
S-VIT: Stereo Visual-Inertial Tracking of Lower Limb for Physiotherapy Rehabilitation in Context of Comprehensive Evaluation of SLAM Systems

Estimation of the motion of an agent and its environment concurrently is done by simultaneous localization and mapping (SLAM). In the recent past, SLAM has made rapid and exciting progress and is used in different fields such as unmanned aerial vehicle (UAV), medical surgeries, and endoscopic procedures. The aim of this article is to devise a more accurate physiotherapy exercise monitoring device on the basis of analysis from eight different SLAM algorithms with criteria including power and memory consumption, CPU heat, and CPU utilization. This article provides a comprehensive evaluation on an embedded platform and is first of its kind, especially providing that SLAM systems ego-motion estimation has never been done so explicitly before. Based on the results of the prior analysis, we proposed a stereo visual-inertial tracking (S-VIT) for lower limb tracking in physiotherapy applications. Our proposed algorithm has significantly improved results compared with the state-of-the-art algorithms. Data sets of various physiotherapy rehabilitation exercises for leg are also collected for detailed validations where the ground truth is acquired with a state-of-the-art motion tracking system, Vicon. Note to Practitioners—Accurate real-time tracking in an unknown environment is a challenging task, especially if high accuracy is needed. In physiotherapy, analyzing the daily recorded data (data acquired from a patient’s body movement) will be beneficial in the process of rehabilitation. However, keeping the daily record of patient body motion during exercise is a difficult task in most of the circumstances, which is due to the nonavailability of precise portable devices for accurate motion tracking. In this article, a solution for tracking the patient’s motion (during physiotherapy) using a small hand-held device is presented. For this purpose, simultaneous localization and mapping (SLAM) is used, which, according to the best of our knowledge, is not used in the field of physiotherapy before. In the first part of this article, we present an extensive analysis of a few SLAM algorithms based on power, memory consumption, CPU heat, and CPU utilization. Based on these results, we select the best algorithm EMoVI-SLAM, and then, we extend the work of this article by modifying EMoVI-SLAM. We propose a new SLAM algorithm called stereo visual-inertial tracking (S-VIT). The proposed algorithm is compared with the EMoVI-SLAM on our data set. We collect the data set of various movements of the lower limb. The result shows that S-VIT outperforms EMoVI-SLAM.
A network of bHLH factors controls self-renewal and bipotential differentiation in the Drosophila intestine

The mechanism that controls adult stem cell commitment is not fully elucidated, although it is known that the transcriptional control plays a major role in this process. Since the discovery of stem cells in the Drosophila melanogaster posterior midgut, many transcription factors have been identified to control whether intestinal stem cells (ISC) remain in the stem compartment, commit into the absorptive fate (enterocytes, EC) or differentiate into enteroendocrine (EE) cells. However, the molecular mechanisms governing these cell fate decisions remain to be fully elucidated. We have identified a network of basic helix-loop-helix (bHLH) transcription factors to be key for ISC fate and the maintenance of the tissue homeostasis. The class I bHLH factor Daughterless (Da) impedes terminal differentiation by forming Da:Da homodimers, accumulating cells as ISCs or as absorptive committed cells (enteroblasts, EB). However, the class V HLH protein Extramacrochaete (Emc) inhibits the formation of Da:Da by forming dimers which lack transcriptional activity. We confirmed that emc is expressed in the posterior midgut and we showed that emc over-expression produces terminal differentiation of ISCs into ECs. Moreover, we found that Emc function is downstream of the Notch-Delta pathway. Importantly, we identified that Emc is also important in EBs to block de-differentiation of EBs into ISCs. This blocking is due to Emc inhibition over a bHLH class II, Scute (Sc). We showed that Sc has a dual role; it drives the expression of stem cells genes, such as Dl, while when being expressed at high levels, Sc initiates secretory differentiation. Finally, we studied the function of a bHLH-leucine zipper called Cropped (Crp), whose expression produces the complete arrest of cell division and differentiation in ISCs. Our results indicate that a simple Sc/Da/Emc network of bHLH factors act as a three-position toggle switch, choosing between the stem, secretory and absorptive fates by swapping dimerization partners. This is the first time that such a mechanism can account for all cell fate transitions in the fly gut, and it has direct implications for the maintenance of the mammalian intestine.
The effect of drugs of abuse and alcohol can lead to ocular disorders: A systematic meta-analysis

Background & Aim: The effect of those drug and alcohol on the ocular can range from mild to severe that can cause visual loss or even blindness. The effects of drug and alcohol abuse remain unclear and were studied in this meta-analysis. Methods: Prospective studies that randomised heavier alcohol consumption to either were included. The primary outcome was odds ratio (OR) with a 95% confidence level risk of early AMD. Methodological quantitative was assessed using STATA software. Results: Patients with more than three drinks per day were classified in the highest category in all studies. The six studies reported an increased risk of early AMD in relation to heavy alcohol consumption, but only in one study found it to be statistically significant. There was a borderline heterogeneity between studies (p 0.698; <50%); therefore the results are presented in the form of a fixed effect. Conclusion: Heavy alcohol consumption more than three times the standard drink per day is associated with an increased risk of early Age-related macular degeneration (AMD). Although this relationship appears to be independent and is thought
Production of bioplastic material from algal biomass

Bioplastic composite material was developed from polylactic acid used as basic polymer and microalgae. Two types of biomaterials were prepared based on the proportion of microalgae and polylactic acid. The mass ratios were set to 5:95 and 10:90. First, spirulina was chosen as initial material and then a mixed culture of microalgae community from the biogas digestate treatment. The aim of the research was to study the characteristics of materials in order to determine whether the algal biomass community could be used in the production of bioplastics. It was found out that microalgae do not significantly impact the properties of the polylactic acid material. The degree of material crystallinity increased, the melting temperature reduced, and the modules of losses increased.