Miracle-dz/UniFAR-FTUs huggingface dataset:
Properties and Acceleration Mechanisms of Electrons Up To 200 keV Associated With a Flux Rope Pair and Reconnection X‐Lines Around It in Earth's Plasma Sheet

The properties and acceleration mechanisms of electrons (<200 keV) associated with a pair of tailward traveling flux ropes and accompanied reconnection X‐lines in Earth's plasma sheet are investigated with MMS measurements. Energetic electrons are enhanced on both boundaries and core of the flux ropes. The power‐law spectra of energetic electrons near the X‐lines and in flux ropes are harder than those on flux rope boundaries. Theoretical calculations show that the highest energy of adiabatic electrons is a few keV around the X‐lines, tens of keV immediately downstream of the X‐lines, hundreds of keV on the flux rope boundaries, and a few MeV in the flux rope cores. The X‐lines cause strong energy dissipation, which may generate the energetic electron beams around them. The enhanced electron parallel temperature can be caused by the curvature‐driven Fermi acceleration and the parallel electric potential. Betatron acceleration due to the magnetic field compression is strong on flux rope boundaries, which enhances energetic electrons in the perpendicular direction. Electrons can be trapped between the flux rope pair due to mirror force and parallel electric potential. Electrostatic structures in the flux rope cores correspond to potential drops up to half of the electron temperature. The energetic electrons and the electron distribution functions in the flux rope cores are suggested to be transported from other dawn‐dusk directions, which is a 3‐dimensional effect. The acceleration and deceleration of the Betatron and Fermi processes appear alternately indicating that the magnetic field and plasma are turbulent around the flux ropes.
A Review of Cyclodextrin Encapsulation and Intelligent Response for the Release of Curcumin

To overcome the low water solubility and low bioavailability of curcumin (CUR), multiple delivery strategies have been proposed. Among these, cyclodextrin-based carriers have been widely used for the encapsulation and delivery of CUR. Cyclodextrins (CDs), as natural oligosaccharides, have been well known for their biodegradability, biocompatibility, non-toxicity, and internal hydrophobic and external hydrophilic structural features. This paper summarizes the recently reported CD-based carriers for encapsulating CUR. Particularly, the polymerization properties of CD self-assembly to enhance the encapsulation of CUR are discussed. In addition, the current progress on stimuli-responsive CD carriers for controlled release of CUR is described, which laid an important foundation for the development of CUR-based precision therapy in clinical practice. In conclusion, this review may provide ideas for the future development of a CD-based encapsulant for CUR.
Parameter optimization for GARCH Model using hybrid PSO-GA

Building Garch Models using classical numerical methods has been a difficult task, and many approaches to solve this problem has been proposed in the recent past which includes meta heuristic and evolutionary algorithms as well. In addition, the Fluctuations found in stock market follow volatility clustering. This clustering feature has made forecasting difficult. In this paper we plan to estimate the parameters of GARCH Model using PSO-GA approach, and also consider the effects caused by the positive shocks and negative shocks using GJR-Garch. We also propose a comparison between hybrid PSO(Particle Swarm Optimization) and GA(Genetic Algorithm) for parameter optimization in GARCH Model, which will be compared with the existing systems.
An algorithm for pole assignment of time invariant linear systems

An algorithm is suggested for the computation of a linear state feedback for a single input system such that the resultant closed-loop system has specified eigenvalues. The algorithm is more efficient than many comparable techniques, and has some desirable numerical properties. It is closely related to the QR algorithm for the eigenproblem, and extends to descriptor systems.
IAES International Journal of Artificial Intelligence (IJ-AI)

Received Jun 22, 2022 Revised Oct 3, 2022 Accepted Nov 2, 2022 Precise traffic classification is essential to numerous network functionalities such as routing, network management, and resource allocation. Traditional classification techniques became insufficient due to the massive growth of network traffic that requires high computational costs. The arising model of software defined networking (SDN) has adjusted the network architecture to get a centralized controller that preserves a global view over the entire network. This paper proposes a model for SDN traffic classification based on machine learning (ML) using the Spark framework. The proposed model consists of two phases; learning and deployment. A ML pipeline is constructed in the learning phase, consisting of a set of stages combined as a single entity. Three ML models are built and evaluated; decision tree, random forest, and logistic regression, for classifying a well-known 75 applications, including Google and YouTube, accurately and in a short time scale. A dataset consisting of 3,577,296 flows with 87 features is used for training and testing the models. The decision tree model is elected for deployment according to the performance results, which indicate that it has the best accuracy with 0.98. The performance of the proposed model is compared with the state-of-the-art works, and better accuracy result is reported.
Real-time SLAM Algorithm for Efficient Association Prediction Introducing Residual Connection

In view of the problems of blurred images and insufficient feature points caused by the structured environment or too fast camera movement in the current slam (Simultaneous Localization and Mapping) system, this paper proposes a real-time slam algorithm for efficient association prediction introducing residual connection. The algorithm introduced residual connection on the basis of an efficient correspondence prediction network to make up for the loss of information in the downsampling process, and form a new feature point extraction and matching method, which can replace the ORB (Oriented FAST and Rotated BRIEF) feature points in ORB-SLAM2. This paper conducted experiments on the TUM dataset and compared it with the experimental results of ORB-SLAM2 and a smaller version of efficient correspondence prediction network. The results show that this method can enhance map readability and effectively improve the accuracy of camera positioning while ensuring real-time performance.
Stock Market Prediction Using Yahoo finance and Twitter Polarity

Predicting the stock market is one of the intriguing and real life problem statements. In the current virtual world, social media like Twitter is the perfect representation of public opinion. Using the information available on these platforms, we can create very genuine and helpful insights about stocks. This paper explains different methods of interactively learning the complex market and its trends. We have used three different models for this paper which are Support Vector Regression, Long Short Term Memory and Random Forest and have also performed sentiment analysis on tweets related to Apple stock and compared the final results with Amazon and Tesla results. The model with the least error is the ideal and the most preferred method for prediction. We have combined Twitter's polarity data with Yahoo Finance's stock data for an efficient input. The results have given us a clear polarity view, both a statistical, and a graphical view.
TriLoc: Toward Accurate Indoor Localization With Assistance of Microwave Reflections

With the development of the Internet of Things (IoT), indoor localization technology plays a vital role in smart factories, smart cities, and other fields. When using the network infrastructures such as Wi-Fi, some conventional localization technologies usually need multiple access points (APs), which involve time and data synchronizations. As a result, those drawbacks hinder the deployment of those localization technologies. In this article, we propose TriLoc, a single AP-based indoor localization system with the assistance of microwave reflections, which has the minimum overheads compared to the existing schemes. The insight is that the reflection paths and the direct path experience the same phase errors, and thus, it can be used for locating the user device using only a single AP. In the system, we first estimate the angle of arrivals (AoA) and time of flight (ToF) of propagation paths and then use the multipath triangle that consists of one first-order reflection path and the direct path to locate the user device. Finally, we construct the prototype using software-defined radio and evaluate it in various indoor environments. The experimental results show that TriLoc can achieve submeter localization accuracy using only a single AP.
The Effect of a 14-Day gymnema sylvestre Intervention to Reduce Sugar Cravings in Adults

Gymnemic-acids (GA) block lingual sweet taste receptors, thereby reducing pleasantness and intake of sweet food. Objective: To examine whether a 14-day gymnema-based intervention can reduce sweet foods and discretionary sugar intake in free-living adults. Healthy adults (n = 58) were randomly allocated to either the intervention group (INT) or control group (CON). The intervention comprised of consuming 4 mg of Gymnema sylvestre containing 75% gymnema acids, a fibre and vitamin supplement, and an associated healthy-eating guide for 14 days; participants in the CON group followed the same protocol, replacing the GA with a placebo mint. Amount of chocolate bars eaten and sensory testing were conducted before and after the 14-day intervention (post-GA or placebo dosing on days zero and 15, respectively). Food frequency questionnaires were conducted on days zero, 15 and after a 28-day maintenance period to examine any changes in intake of sweet foods. A range of statistical procedures were used to analyse the data including Chi square, t-test and two-way analysis of variance. Post dosing, INT consumed fewer chocolates (2.65 ± 0.21 bars) at day zero than CON (3.15 ± 0.24 bars; p = 0.02); there were no differences between groups at day 15 (INT = 2.77 ± 0.22 bars; CON = 2.78 ± 0.22 bars; p = 0.81). At both visits, a small substantive effect (r < 0.3) was observed in the change in pleasantness and desire ratings, with INT showing a slight increase while CON showed a small decrease over the 14-day period. No differences were found in the intake of 9 food categories between groups at any timepoint. There were no differences in consumption of low sugar healthy foods between visits, or by group. The 14-day behavioural intervention reduced pleasantness and intake of chocolate in a laboratory setting. There was no habituation to the mint over the 14-day period. This study is the first to investigate the effect of longer-term gymnema acid consumption on sweet food consumption outside of a laboratory setting; further research is needed to assess how long the effect of the 14-day intervention persists.
Transcriptome and Gene Regulatory Network Analyses Reveal New Transcription Factors in Mature Fruit Associated with Harvest Date in Prunus persica

Harvest date is a critical parameter for producers and consumers regarding agro-industrial performance. It involves a pleiotropic effect controlling the development of other fruit quality traits through finely controlling regulatory mechanisms. Fruit ripening is a process in which various signals and biological events co-occur and are regulated by hormone signaling that produces the accumulation/degradation of multiple compounds. However, the regulatory mechanisms that control the hormone signaling involved in fruit development and ripening are still unclear. To investigate the issue, we used individuals with early, middle and late harvest dates from a peach segregating population to identify regulatory candidate genes controlling fruit quality traits at the harvest stage and validate them in contrasting peach varieties for this trait. We identified 467 and 654 differentially expressed genes for early and late harvest through a transcriptomic approach. In addition, using the Arabidopsis DAP-seq database and network analysis, six transcription factors were selected. Our results suggest significant hormonal balance and cell wall composition/structure differences between early and late harvest samples. Thus, we propose that higher expression levels of the transcription factors HB7, ERF017 and WRKY70 in early harvest individuals would induce the expression of genes associated with the jasmonic acid pathway, photosynthesis and gibberellins inhibition. While on the other hand, the high expression levels of LHY, CDF3 and NAC083 in late harvest individuals would promote the induction of genes associated with abscisic acid biosynthesis, auxins and cell wall remodeling.
Design of A High Efficiency S-band Transceiver Module for Spaceborne Phased-array Antenna

A design of high efficiency S-band transceiver module compatible with spaceborne phased-array antenna had been described in this paper. This highly reliable and consistent module is suitable for mass production, with stable transmit power of 31dBm. To realize miniaturization and cost-effectiveness, substrate selection and electrical space layout had been performed through loss pre-calculation, and interface performance had been optimized through HFSS electromagnetic field modeling simulation. According to the measurements, the working efficiency is greater than 40% and the VSWR is less than 1.3, while the amplitude fluctuation among channels under extreme temperature (-40°C/+60°C) is less than 0.8dBm.
Chernobyl dreams: investigating visitors’ storytelling in the Chernobyl exclusion zone

Purpose Little is known about the overall meaning of the Chernobyl exclusion zone (CEZ) from the visitors’ point of view. Conceptualizing the zone as a storyscape and its narratives as intangible heritage resources, this study aims to investigate the visitors’ engagement with these resources and the resulting articulations from the engagements as translated into verbal and visual storytelling. Design/methodology/approach Participant observation and participant generated images in combination with in-depth interviews with different types of tourists were conducted. This paper uses the photographs chosen by the interviewees themselves as a photo essay to explore the evocation of stories through narrative engagement. Findings Through participant-oriented research, this study identified three dominant storytelling themes through which visitors focus their understanding of the CEZ. Visitors’ narrative engagements and visual storytelling co-produce the site and entail fluid and even conflicting narrative articulations about the CEZ and its cultural significance. Research limitations/implications The discoveries of this study stem from a unique developing heritage site. This study provided a more nuanced understanding of the different visitor categories in the CEZ and their group-specific ways to articulate, imagine and co-produce the storyscape of Chernobyl. Originality/value Gaining insight into the verbal and visual storytelling of tourists will contribute to the discussion of narrative consumption of different consumption profiles in tourism sites in addition to the mediation and construction of entangled memory spaces.
Relationships between perceived stress at work, occupational burnout and ego-resiliency in a group of public administration employees: testing the assumption about the moderating role of ego-resiliency (replication study in Poland)

Objectives. The job demands–resources (JD-R) theory assumes that job demands can be balanced by resources, which ultimately leads to the development of engagement and prevent burnout. Research shows that human resources weaken the relationship between job demands/stress and employee health. However, some reports do not confirm this. The overriding goal of the research was to empirically verify the theory of the buffering role of personal resources in the JD-R model with a sample of public administration employees in Poland. Methods. The participants were 144 administrative employees. The study was carried out in a correlation scheme. Correlations between the variables of perceived stress at work, burnout and ego-resiliency were established. It was also checked whether ego-resiliency moderates the relationship between perceived stress at work and burnout. Results. As expected, burnout significantly correlated with perceived stress at work (positively) and ego-resiliency (negatively). However, there was no statistically significant relationship between ego-resiliency and perceived stress at work. Ego-resiliency did not moderate the relationship between stress and burnout. Conclusion. More research is required to test the role of different personal resources in the relationships between job demands and burnout, as well as between organizational resources and work engagement.
Water-Based Synthesis of Novel Hybrid Material of Sulfated Polysaccharide Through Radical Polymerization Process

ABSTRACT Water-soluble “sulfated polysaccharides of Chaetomorpha antennina” (CMsps) seaweed were isolated and fractionated (charged & neutral) using column chromatography followed by modification with acrylamide (AAm) to get novel hybrid materials. This polysaccharide comprises 6.356 polydispersity which ascribes to their branching behavior. The crude polysaccharides consist of ribose, arabinose, xylose, and galactose, carbohydrates units. The peak that appeared in the FT-IR spectrum at 1250 cm−1 confirms the sulfated nature of polysaccharides. The charged polysaccharides, pronounced “control CMsps” before the modification, were modified with AAm under microwave irradiation and characterized to investigate potential grafting. FT-IR, SEM, C13NMR, TGA, XRD, CD, and optical rotation were applied for control CMsps and CMsps-g-PAAm (grafted product). The FT-IR and SEM tools have significant capability to prove occurring successful potential grating with fluctuating peaks and morphology, respectively. XRD graphs for materials “control CMsps and CMsps-g-PAAm” reaffirm the successful grafting, leading to symmetrical molecular construction. TGA graphs support the exclusive thermal stability of CMsps-g-PAAm rather than control CMsps. The varying peak/trough ratio was evaluated by the CD spectrum, which identified the reversal change in the chirotopical profile with the insertion of polyacrylamide (PAAm) in polysaccharide chains. The materials, control CMsps and CMsps-g-PAAm were capable to develop hydrogel hence it can be exploited as a promising rheological modifier for food industry applications. The materials can also be useful in the biomedical field as demulcent drug formulation, dental impression product, and drug delivery for local therapy. Graphical abstract
Risk Factors for Mortality and Antimicrobial Regimens in Pediatric Intensive Care Unit Patients with Carbapenem-Resistant Enterobacteriaceae Infections: A Six-Year Retrospective Study

Purpose Limited data are available on the characteristics, risk factors, and antimicrobial treatment of critically ill pediatric patients with carbapenem-resistant Enterobacteriaceae (CRE) infections. This study was to identify the risk factors for 30-day mortality in pediatric intensive care unit (PICU) patients with CRE infections and compare the clinical outcomes of different antimicrobial regimens. Methods A retrospective, observational cohort study was performed on patients admitted to the PICU with positive CRE cultures between January 2016 and December 2021. Results For the 56 patients, the overall 30-day mortality was 50% (n=28). Multivariable logistic regression analysis revealed that pediatric critical illness score (PCIS; HR = 0.879; 95% CI, 0.827–0.935; P < 0.001) and serum albumin levels (HR = 0.921; 95% CI, 0.860–0.987; P = 0.019) were independently associated with 30-day mortality. At the same time, there was no significant difference in 30-day mortality (42.9% versus 45.5%, P = 0.854) or clinical efficiency rate (53.4% versus 40.9%, P = 0.374) between with and without polymyxin B therapy. Conclusion The study revealed PCIS and serum albumin levels were the independent mortality-related risk factors of CRE infections in critically ill pediatric patients. Treatment with polymyxin B could not reduce 30-day mortality. Future prospective cohort studies are needed to investigate the optimal antimicrobial regimens for CRE infection in PICU patients.
Household Food Insecurity, Anemia, Malnutrition and Unfavorable Dietary Diversity among Adolescents: Quadruple Whammies in the Era of Escalating Crises in Lebanon

Adolescence is a transitional period between childhood and adulthood. Nowadays, adolescents in Lebanon are growing during a time of unprecedented health crises and political instability. This study aimed to determine the prevalence and correlates of malnutrition, dietary diversity in adolescents’ households, and adolescents’ self-reported food insecurity in Lebanon. A national representative sample of 450 parent–adolescent dyads (parents: mean age ± standard deviation (SD) = 46.0 ± 7.0, mothers: 59.0%; adolescents: mean age ± SD = 15.0 ± 3.0, girls: 54.6%) were interviewed. Anthropometric and blood hemoglobin measurements were performed for adolescents. The Food Consumption Score, the Arab Family Food Security Scale and the Adolescent-Level Food-Security Scale were used. The overall prevalence of adolescent stunting, thinness, overweight, obesity and anemia was 6.7%, 4.7%, 19.3%, 12.9% and 16.7%, respectively. Almost 40.4% and 68% of adolescent’s households consumed undiversified diets and were food insecure, respectively. Food insecurity (FI) affected 54.0% of adolescents. Adolescents attending schools (vs. university) were eight times more likely to be stunted (p = 0.04). Boys had a 4.3 times higher thinness risk (p = 0.005) compared to girls. Households reporting an income decline since the start of the Lebanese economic crisis were three times more likely to have a thin adolescent (p = 0.01). Parental overweight/obesity (p = 0.002) and lower education level (p = 0.04) nearly doubled the risk of adolescent overweight or obesity. At a time when escalating crises in Lebanon are shifting diets for the youngest generations, the development of adolescent-responsive nutritional policies becomes a must.
Glycogen Synthase Kinase 3β Is a Key Regulator in the Inhibitory Effects of Accumbal Cocaine- and Amphetamine-Regulated Transcript Peptide 55–102 on Amphetamine-Induced Locomotor Activity

Microinjection of cocaine- and amphetamine-regulated transcript (CART) peptide 55–102 into the nucleus accumbens (NAcc) core significantly attenuates psychostimulant-induced locomotor activity. However, the molecular mechanism remains poorly understood. We examined the phosphorylation levels of Akt, glycogen synthase kinase 3β (GSK3β), and glutamate receptor 1 (GluA1) in NAcc core tissues obtained 60 min after microinjection of CART peptide 55–102 into this site, followed by systemic injection of amphetamine (AMPH). Phosphorylation levels of Akt at Thr308 and GSK3β at Ser9 were decreased, while those of GluA1 at Ser845 were increased, by AMPH treatment. These effects returned to basal levels following treatment with CART peptide 55–102. Furthermore, the negative regulatory effects of the CART peptide on AMPH-induced changes in phosphorylation levels and locomotor activity were all abolished by pretreatment with the S9 peptide, an artificially synthesized indirect GSK3β activator. These results suggest that the CART peptide 55–102 in the NAcc core plays a negative regulatory role in AMPH-induced locomotor activity by normalizing the changes in phosphorylation levels of Akt-GSK3β, and subsequently GluA1 modified by AMPH at this site. The present findings are the first to reveal GSK3β as a key regulator of the inhibitory role of the CART peptide in psychomotor stimulant-induced locomotor activity.