Miracle-dz/UniFAR-FTUs huggingface dataset:
Design of utility functions for game-based channel allocation in cognitive radio wireless sensor network

Cognitive radio enabled wireless sensor network is capable of reducing the spectrum scarcity problem of the wireless networks. Looking at the scarcity of available bandwidth, and the high growth in the number of communication devices in recent times, cognitive radio technology has proven to be a promising technology for the days to come. The application of Game Theory in cognitive radio networks has been visible in recent research works. However, only limited literature is available in which possibilities of applying the game-theory based approaches for the challenging task of channel assignment in cognitive radio wireless sensor are available in the literature. It is understood that the crux of the solution to the problem of scheming games for allocation of the channel is centered on the selection of the utility function in order to increase the efficiency of the channel allocation algorithm. Accordingly, the study regarding the influence of several utility functions on the performance of the corresponding channel allocation algorithm is important. Such a study enables designers to arrive at the optimal utility function to be used in game-theory based channel allocation algorithms, and the same is explored to the best extent, in this paper. The detailed procedure of allocating channels to all the contending nodes through game-based channel allocation has been discussed in this paper. Moreover, the performance of six different utility functions proposed which can be used for channel allocation using game theory has been evaluated for respective performances through MATLAB-based simulations.
Equivalent subdomain method for performance prediction of permanent magnet eddy current brakes

An equivalent subdomain method for calculating the performance parameters of permanent magnet eddy current brakes (ECB) is presented by combining subdomain technology with a magnetic equivalent circuit (MEC) model. The proposed method replaces the source term in the subdomain model with an equivalent current sheet applied to the boundary of an equivalent region. The relative permeability of the equivalent region is related to design parameters rather than infinite ones and is obtained by the MEC model considering the eddy current reaction. A small prototype experimental platform is established. The validity of the proposed method is verified by the experiment and the finite element method (FEM). The results show that the braking force predicted by the method match well with those obtained by the FEM without considering the edge effect, and are slightly larger than those measured by the experiment. Considering the static edge effect, the results of the proposed method agree well with the measured values and FEM results. The method also proves to be effective in the performance prediction of the ECB with different design parameters. In addition, the limitation of the proposed method is discussed in detail.
Numerical modelling of the effect of dry air traces in a helium parallel plate dielectric barrier discharge

A validated numerical model developed for the study of helium barrier discharges in the presence of dry air impurities is presented in this paper. The model was used to numerically investigate the influence of air traces on the evolution of the helium dielectric barrier discharge (DBD). The level of dry air used as impurity was in the range from 0 to 1500 ppm, which corresponds to the most commonly encountered range in atmospheric pressure discharge experiments. The results presented in this study clearly show that the plasma chemistry and consequently the discharge evolution is highly affected by the concentration level of impurities in the mixture. In particular, it was observed that air traces assist the discharge ignition at low concentration levels (~55 ppm), while on the other hand, they increase the burning voltage at higher concentration levels (~1000 ppm). Furthermore, it was found that the discharge symmetry during the voltage cycle highly depends on the concentration of air. For the interpretation of the results, a detailed analysis of the processes that occur in the discharge gap is performed and the main reaction pathways of ion production are described. Thanks to this approach, useful insight into the physics behind the evolution of the discharge is obtained.
Genetic and Morpho-Agronomic Characterization of Sicilian Tetraploid Wheat Germplasm

Cereal landraces are a very valuable resource in contemporary agriculture. A renewed focus for breeding purposes could ameliorate some negative consequences of modern agriculture and conventional breeding, such as the loss of genetic diversity. One strategy combining molecular genotyping and characterization of morpho-agronomic traits related to productivity is proposed to assess a group of tetraploid wheat landraces named Bufala, historically cultivated in the mountain areas of Sicily and characterized by adaptability in terms of cold tolerance, ability to grow in marginal soils, weed competitiveness and resistance to diseases. A total of 55 SSR molecular markers were used to detect patterns of diversity in 30 rivet and durum wheat genotypes. Furthermore, phenotyping was then conducted for 8 morpho-agronomic traits. Discriminant analysis of principal components (DAPC), STRUCTURE and phylogenetical analysis allowed to identify three groups, two of them genetically close and including both Bufala and Bufala-related rivet landraces. To the third group, old and more recent durum wheat varieties, constituting the outgroup, were assigned. Clustering was confirmed by Principal Component Analysis (PCA). Finally, a correlation analysis showed that Bufala genotypes are characterized by lower ear density, major ear length and later earing time compared with the other studied genotypes. The levels of diversity and population structure could be an important contribution to parent selection in tetraploid wheat breeding programs, as well as to germplasm conservation and management.
Close Correlations Between The Carotid And Radial Relative Artery Blood Flow Velocity Ratio and BMI and Temperature In Normal Individuals

Background: Measuring carotid and radial pulses as a diagnostic method 11 plays a vital role in sphygmology applied via traditional Chinese medicine (TCM). In particular, many TCM theories and doctors have 13 indicated that the pulse force ratio is closely correlated with human 14 physiological conditions, such as weight and body temperature. However, 15 few studies have explored these potential correlations. Thus, the purpose 16 of this study was to investigate the relationships between the pulse 17 strength ratio and human metabolism indicators. 18 Methods: The carotid and radial relative artery blood flow velocity 19 (RABFV) and pulse force from 122 normal adults were examined by 20 ultrasound and manual palpation by a doctor, and the same group was 21 tested via a thermal texture map (TTM). 22 Results: Obvious differences in the body side and sex were not observed 23 in the ratio of carotid and radial RABFV among normal individuals ( p > 0.05 ). However, the ratio of young people was greater than that of old 25 people ( p<0.001 ), and strong support was obtained for traditional 26 Chinese medicine (TCM) assumptions of seasonal differences in the ratio 27 ( p<0.001 ). Furthermore, we discovered that the ratio had a negative 28 correlation with BMI and torso temperature but a positive correlation 29 with hand temperature. 30 Conclusion: Our results demonstrated that the ratio of carotid and radial 31 RABFV could serve as an indicator of human physical conditions, such 32 as BMI and human temperature, and represents a valuable tool for 33 evaluating yin-yang properties in TCM clinical practice. The close correlations reported above verified some theories of TCM and provided 35 strong support for sphygmology in TCM. 36
A cellular model for screening of lactobacilli that can enhance tight junctions

It is widely believed that the dysfunction of tight junctions (TJs) in the gut barrier is one of the most important pathogenic factors in inflammatory bowel disease (IBD). More and more studies show that probiotics can be engaged as a substitute for traditional medicine such as antibiotics to treat IBD. However, there are very few efficient cellular models that can rapidly screen effective probiotics for TJ regulation. Co-incubation of probiotics and PT–gliadin has been used by some researchers to study the TJ regulatory function of bacteria. In this study, a modification was performed to overcome the deficiency of this method, i.e., that the indirect effect of probiotics on TJ restoration cannot be excluded. In a sectional incubation model, some of the Lactobacillus strains proved to be effective in TJ regulation, which is similar to the result obtained with an animal model. Principal component analysis showed that the modified sectional incubation model reflected the regulatory mode of probiotics in the gut more accurately than that by the co-incubation model. This study provides a new strategy that may improve the efficiency of rapid screening of available probiotics for intervention in IBD.
Studies on the constituents from the herb of Elshotzia rugulosa

Objective: To isolate and elucidate the chemical constituents of the plant of Elshotzia rugulosa, and provide evidence for its development. Method: The compounds were separated with silica gel column chromatography and their structures were identified by IR, NMR, and MS spectral analysis and physico chemical property comparion. Result: Eight compounds were isolated and identified as eicosane (Ⅰ), hexatriacontane (Ⅱ), β sitosterol (Ⅲ), stigmasterol (Ⅳ), sorbic acid (Ⅴ), betulinic acid (Ⅵ), 7,4′ dimethoxykaempferol (Ⅶ) and apigenin (Ⅷ). Among them, compoundsⅠ, Ⅱ, Ⅴ, Ⅵ were first found from the genus.
Part-MOT: A multi-object tracking method with instance part-based embedding

Part-MOT, a one-stage anchor-free architecture which uniﬁes the object identiﬁcation representation and detection in one task for visual object tracking is presented. For object representation, a position relevant feature is obtained using the center-ness information, which takes advantage of the anchor-free ideal to encode the feature map as the instance-aware embedding. To adapt to the object’s movement, the clustering-based method to get the global instance feature is introduced. This enables this approach more robust to make better tracking decisions. Part-MOT achieves the state-of-the-art performance on public datasets, with especially strong results for object deformation and movement changes.
Application of optical properties in water purification quality testing

The current study was performed to test filtration media system performance on quality of water purification and to evaluate optical properties, such as reflection, transmission and absorption intensities for filtered water using a spectrophotometer operating in the range 350–400 nm. Head losses through filtration system at the experiments were equal to 20, 40, and 60 kPa. With the progress of the filtration process and increase in different head loss (from 20 to 60 kPa), both the content of total suspended solids and turbidity in optical properties intensities for filtrated water increased, together with the water cloudiness. It is shown that the intensity of optical properties can be considered a reliable indicator that to determine the need for backwashing of the filtration
Phytochemical and Toxicity Analysis of Leucas zeylanica crude extracts

Leucas zeylanica (L.) R. Br. (L. zeylanica) originated from Lamiaceae family which is also known as “Pokok ketumbit” by local Malaysian is famous for therapeutic treatment uses especially in India and Sri Lanka. Throughout this study, four different solvents which were n-hexane, chloroform, methanol, and distilled water used in the extraction method using cold maceration technique. Optimization was done and methanol became the best solvent that produced highest percentage yield compared to the other solvents and also been chose to carry out a few other analysis. The extracts were subjected to qualitative and quantitative analyses to determine the phytochemical constituents present in aerial parts of L. zeylanica. The Fourier Transform Infrared spectroscopy – Attenuated Total Reflection (FTIR-ATR) results showed few significance peaks according to extracted solvents. Qualitative analysis on the methanolic extract showed that L. zeylanica contains phenol, flavonoid and tannin through phytochemical screening tests using colorimetric method. The Gas Chromatography – Mass Spectrometry (GC-MS) results demonstrated few fatty acids been extracted in both n-hexane and chloroform extracts with high peak area, while Liquid Chromatography Tandem with Mass Spectrometry (LC-MS-MS) results identified that chloroform extract showed fragment spectrum of tricin [M+H]+ ion at m/z 328.1 with retention time of 19.49 min, while methanol extract had two fragment spectrum of tricin and apigenin at m/z 282.3 and 270.4 in positive ion mode at 19.53 min and 16.70 min respectively. Quantitative analysis on methanolic extract was done via Ultra Violet-visible spectrophotometric assay for estimation of total phenolic content (TPC), total flavonoid content (TFC) and total tannin content (TTC). TPC showed a gallic acid standard calibration curve, y = 0.0063x + 0.02 and estimated amount was 151.54 ± 0.04 mg of gallic acid equivalent/ 1 g of extract, meanwhile TFC displayed a quercetin standard calibration curve of y = 0.0050x + 0.037 and estimated amount of flavonoids was 71.76 ± 0.2 mg of quercetin equivalent/ 1 g of extract. Additionally, The toxicity test for the L. zeylanica extract showing that this compound is safe and non-toxic in term of skin irritation, cytotoxicity and also genotoxicity.
Causes of Stress among Students in Higher Educational Institutions in India

A student has to deal with pressure from many directions. When the extent of the pressure exceeds the capacity of an individual, it becomes stressful. Students may experience stress due several factors like academics, workload, relationships with friends and peers, teachers, parents, job and career aspirations and financial problems. The present study was carried out to find the level of stress and the main factors responsible for it among students in higher educational institutions in India. From all over India, a sample of 616 students was taken. The respondents were the states of Assam, Gujarat, Punjab, Rajasthan, Uttar Pradesh, Madhya Pradesh, Bihar and Rajasthan. Primary data was collected with the help of a structured and pre-tested questionnaire. It included information about demographic profile of the respondents and had seven sub-scales pertaining to different stress factors. Results showed that moderate to low level stress was experienced by majority of the students. 'Job and career' and 'financial difficulties' were the main causes of stress. The next important factors were academics and work load. This paper further analyses the important reasons behind each stress factor. Received: 18 November 2020 / Accepted: 26 February 2021 / Published: 17 May 2021
Análisis empírico sobre el rendimiento académico de los estudiantes en la asignatura de inglés con el uso de Voscreen

La tecnología es parte importante de la sociedad actual y una interesante herramienta para mejorar el aprendizaje, su uso responde a la naturaleza lúdica que la caracteriza. El objetivo de la presente investigación es conocer si existe una correlación entre el uso frecuente de la aplicación VoScreen y el rendimiento académico de los estudiantes de idioma inglés de la Universidad Estatal de Bolívar, Ecuador. Esta investigación cuantitativa experimental, se basa en un muestreo no probabilístico intencional, aplicado durante un periodo de dieciséis semanas a un total de 270 estudiantes universitarios de diferentes edades y pertenecientes a diferentes carreras. Se analizó el uso o no de la aplicación VoScreen y los resultados obtenidos al final del periodo académico, constatando la investigación correlacional entre el uso de la aplicación y la obtención de mejores calificaciones al término del periodo académico. Finalmente, una encuesta aplicada reflejó la alta aceptación de la aplicación.
Degradation mechanism and kinetics of carbendazim using Achromobacter sp. strain GB61

Abstract The present study was planned with the objective to isolate and characterize a carbendazim-degrading Achromobacter sp. strain GB61 from the contaminated agriculture field. Optimized carbendazim biodegradation (76.2%) by Achromobacter sp. strain GB61 was observed at 30 °C, pH 7.0, and 120 rpm within 20 days of incubation and was determined using response surface methodology. The degradation kinetics revealed the half-life (t1/2 ) of 7.3 days, and correlation coefficient (R2 ) 0.0882 and degradation constant (K) 0.095 respectively. Maximum specific degradation rate (q max), half-saturation constant (K s) and inhibition constant (K i) were determined to be 0.122 d−1, 0.724 mg L−1 and 271.71 mg L−1, respectively. Intermediate metabolites of carbendazim biodegradation confirming the formation of dihydroxybenzimidazole, 2-aminobenzimidazole and benzimidazole as intermediates. The results of the experiments suggested that the strain GB61 could be used for large-scale bioremediation of carbendazim contaminated environments.
Modeling and Analysis of Flat Double-sided Linear Permanent Magnet Synchronous Generator by Magnetic Equivalent Circuit

Background and Objectives: In recent years, linear generators have been broadly utilized to harness wave motion energy. There are various types of linear generators with different magnetic and geometric structures. Among these generators, linear permanent magnet synchronous generator provides a higher energy density than other generators. Due to the simplicity of the structure and the low cost of producing a flat double-sided structure, this type of structure is investigated in this paper. Methods: The purpose of the paper can be divided into two main categories: first, modeling of the flat double-sided linear permanent magnet synchronous generator by using magnetic equivalent circuit (MEC) method and second, deriving the generator electrical equations which are used in analysis and design process. Results: The behavior of the linear permanent magnet synchronous generator is studied and the induced voltages are calculated. The no-load and loaded conditions of the generator with different loads are investigated and the voltage and the current of the load are obtained. Conclusion: In order to confirm the results, finite element method (FEM) is employed. The designed linear generator is simulated by FEM. Comparing the results obtained by MEC and FEM show good agreements between two methods, validating the presented modelling method. ntervals t[0, 3 Sec]. ======================================================================================================Copyrights©2021 The author(s). This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, as long as the original authors and source are cited. No permission is required from the authors or the publishers. ======================================================================================================
Natuna Off-Shelf Current (NOC) Vertical Variability and Its Relation to ENSO in the North Natuna Sea

During the northwest monsoon (NWM), southerly flow off the Natuna Islands appeared as the extension of the turning Vietnam coastal jet, known as Natuna off-shelf current (NOC). NOC is generated by the interaction of wind stress and the North Natuna Sea’s bottom topography. The purposes of the present study is to investigate the vertical variability of NOC and its relation to El Niňo Southern Oscillation (ENSO) using Marine Copernicus reanalysis data. The vertical variability refers to the spatial distribution of NOC pattern at the surface layer, thermocline layer, and deep/bottom layer. in 2014 as representative of normal ENSO condition. To investigate the effect of ENSO, the spatial distribution of NOC in 2011 and 2016 were compared which represent the La Niňa and El Niňo conditions, respectively. The results show that NOC starts to generate at the southeast monsoon season to the transition I season and peaks in the northwest monsoon season. The occurrence of NOC is identified at all depth layers with the weakened NOC at the deep layer. Related to the ENSO effect, La Niňa tends to strengthen NOC while El Niňo tends to weaken NOC. These are releted with the strengthening and weakening northerly wind speed during La Niňa and El Niňo, Respectively. During La Niňa events, the NOC occurs more frequently than during El Niňo. Thus, beside affecting the magnitude of NOC, ENSO also influence the frequency occurrence of NOC.
Strengthened 32-bit AES implementation: Architectural error correction configuration with a new voting scheme

Digital data transmission is day by day more vulnerable to both malicious and natural faults. With an aim to assure reliability, security and privacy in communication, a low ‐ cost fault resilient architecture for Advanced Encryption Standard (AES) is proposed. In order not to degrade the reliability of our AES architecture, the reliability of voter is very important, for which reason we have introduced a novel voting scheme include a majority voter (named TMR voter) and an error barrier element (named DMR voter). In this paper, a reliable and secure 32 ‐ bit data ‐ path AES implementation based on our robust fault resilient approach is developed. We illustrate that the proposed architecture can tolerate up to triple ‐ bit (byte) simultaneous faults at each pipeline stage’s logic and verify our claim through extensive error simulations. Error simulation results also show that our architecture achieves close to 100% fault ‐ masking capability for multiple ‐ bit (byte) faults. Finally, it is shown that the Application ‐ Specific Integrated Circuit implementation of the fault ‐ tolerant architectures using the composite field ‐ based S ‐ box, CFB ‐ AES, and ROM ‐ based S ‐ box, RB ‐ AES allows better area usage, throughput and fault resilience trade ‐ off compared to their counterparts. So, it provides the most appropriate features to be used in highly ‐ secure resource ‐ constraint applications.
DENGUE FEVER: STAGES, COMPLICATION, DIAGNOSIS, AND PREVENTION STRATEGIES

Dengue fever virus (DENV) is said to be a single-stranded, positive-sense RNA virus that belongs to the family Flaviviridae and the genus is Flavivirus. The disease can be transmitted through infected blood products and also through organ donation. Vertical transmission (from mother to child) at the time of pregnancy or during birth has been reported. Other unusual reports showed man-to-man modes of transmission. Hemorrhagic fever is specified by hemorrhage, thrombocytopenia, leakage of blood plasma, or dengue shock syndrome. Dengue is basically transmitted by various species of mosquito among the genus Aedes, the most uniquely identified one is Aedes aegypti. There are four different but very closely related serotypes (DENV-1, DENV-2, DENV-3, and DENV-4) of the virus that causes Dengue. Lifelong immunity against the particular serotype that has caused the infection is believed to have been imparted upon recovery. However, cross-immunity to the other serotypes is either partial or temporary upon recovery and hence future infections by any of the other serotypes enhance the risk of developing severe dengue. Prevention is identified by reducing the habitat and the number of mosquitoes and also by limiting exposure to bites. Treatment of mild or moderate type is supportive, with oral or intravenous rehydration. The intravenous fluids and blood transfusion for more severe cases are found to be effective. The present study aimed to present brief and informative salient features of various facts regarding dengue, including its global incidence, structure, mode of transmission, clinical signs and symptoms, control, and preventive measures.