Enhancing Learning Technology: By Incorporating Social Media Platforms in Language Teaching Classrooms

Social Media performs a high-surpassed position in English, as it allows English language beginners to improve their studying and writing abilities. Social media is utilized in classrooms, wherever students can begin their blogs. They will make their connections with humans more prominent and construct a social community known as PLN (Personal Learning Network). Throughout COVID-19, all social media networks became popular, and plenty of used sites for an off-the-cuff time-pass. With the assistance of web 2.0 technology, blogs became treasured and engaging equipment for English and Foreign Languages, teachers the scope of these social networks, significantly blogs, thus, will broaden the learner-learner and learner-teacher interactions. The researcher will analyze the difficulties of EFL learners and suggest technical remedies to eliminate the problem and face barriers in writing English via educational technology

Bayesian Repetitive Deferred Sampling Plan Indexed Through Relative Slopes

This paper deals with designing of Bayesian Repetitive Deferred Sampling Plan (BRDS) indexed through incoming and outgoing quality levels with their relative slopes on the OC curve. The Repetitive Deferred Sampling (RDS) Plan has been developed by Shankar and Mohapatra (1991) and this plan is an extension of the Multiple Deferred Sampling Plan MDS - (c1, c2), which was proposed by Rambert Vaerst (1981). &nbsp

Retinal Blood Vessels Extraction Based on Curvelet Transform and by Combining Bothat and Tophat Morphology

Retinal image contains vital information about the health of the sensory part of the visual system. Extracting these features is the first and most important step to analysis of retinal images for various applications of medical or human recognition. The proposed method consists of preprocessing, contrast enhancement and blood vessels extraction stages. In preprocessing, since the green channel from the coloured retinal images has the highest contrast between the subbands so the green component is selected. To uniform the brightness of image adaptive histogram equalization is used since it provides an image with a uniformed, darker background and brighter grey level of the blood vessels. Furthermore Curvelet transforms is used to enhance the contrast of an image by highlighting its edges in various scales and directions. Eventually the combination of Bothat and Tophat morpholological function followed by local thresholding is provided to classify the blood vessels. Hence the retinal blood vessels are separated from the background image.DOI:http://dx.doi.org/10.11591/ijece.v4i3.632

Construction and Evaluation of Performance Measures for Bayesian Chain Sampling Plan (BChSP-1)

Bayesian Acceptance Sampling Approach is associated with utilization of prior process history for the selection of Distributions (viz., Gamma Poisson, Beta Binomial) to describe the random fluctuations involved in Acceptance Sampling. Calvin (1984) provides procedures and tables for implementing Bayesian Sampling Plan. Dodge (1955) has proposed Chain Sampling Plan in which Chain Sampling Plan allows significant reduction in sample size and the condition for a continuing succession of lots from a stable and trusted supplier. Usha (1991) has proposed procedure for Bayesian Chain Sampling Plan. Latha (2002) has further studied Bayesian Chain Sampling Plan – 1 involving designing of Bayesian Chain Sampling Plan indexed through AQL, LQL, OAOQL, and MAAPD. The main thrust of this paper is to account for the possibility of dependence among the items of a sample. This paper mainly relates with the procedure for designing Bayesian Chain Sampling Plan indexed with relative slopes at acceptable and limiting quality levels. Tables and Procedures are also provided for the selection of the parameters for the plan with specified h1, h0 and h2 (Relative Slopes). Numerical Illustration are also provided for the shop floor applications of these procedures

Anti-inflammatory activity of quercetin-3-rhamnopyranosyl-(1-6) glucopyranoside isolated from Delonix elata against Freund’s complete adjuvant induced inflammation in rats

Delonix elata L. has been used for the treatment of pain and joint stiffness in the traditional medicines of Chitradurga District, Karnataka, India. In the present study, the anti-inflammatory activity of quercetin-3-rhamnopyranosyl-(1-6) glucopyranoside (QRPG) isolated from D. elata stem bark extract was carried out against Freund’s complete adjuvant (FCA) induced inflammation in rats. The anti-inflammatory activity was evaluated by various methods such as radiographic analysis of hind paws, measurement of paw volume, joint diameter assessment, erythrocyte sedimentation rate, serum nitrites concentration, myeloperoxidase activity, the activity of lysosome enzymes (acid phosphatase, β-glucuronidases and collagenolytic enzymes) and histological observations. Indomethacin was used as the standard drug. QRPG showed significant attenuation in paw oedema of FCA-induced rats. Biochemical analysis in QRPG treated animals revealed a significant reduction in the levels of erythrocyte sedimentation rate, serum nitrites concentration, myeloperoxidase activity, lysosome enzyme activities as compared to control animals. Results obtained in biochemical assays were supported by the histological observations. The present investigation demonstrated promising anti-inflammatory activity of quercetin-3-rhamnopyranosyl-(1-6) glucopyranoside and it could be the principal compound in D. elata stem bark extract. Thus, this study provides the scientific basis for the ethnomedicinal uses of D. elata for joint problems

Synthesis of silver nanoparticles using the seed extract of Ensete superbum and their antibacterial activity assessment

Seeds of Ensete superbum have been used in Ayurvedic medicine to treat kidney stones and diabetes. The current work report the synthesis and characterization of silver nanoparticles (AgNPs) and their antibacterial property. The synthesis of AgNPs was done by mixing silver nitrate solution with aqueous E. superbum seed extract. The pale-yellow colour of the seed extract was changed to deep brown due to the reduction of silver ions to AgNPs, under ambient conditions. The characterization of AgNPs was carried out by UV–Visible spectroscopy, TEM, XRD, and FTIR. The peak absorbance of the UV–Vis spectra was at 420 nm confirming the formation of AgNPs. TEM showed the existence of spherical and hexagonal-shaped nanoparticles. XRD results show that the AgNPs were face-centered cubic (fcc) lattices. FTIR analysis established a link that the presence of different classes of compounds viz. flavonoids, alkaloids, saponins, and terpenoids in E. superbum seed extract is responsible for the reduction and stabilization of AgNPs. The current study aims to point out the application of AgNPs as an antibacterial agent against S. typhi, P. aeruginosa, K. pneumoniae, and V. cholerae, using the well diffusion method. The AgNPs effectively inhibited bacterial growth against P. aeruginosa and S. typhi

Milk Coagulation Properties - A Study on Milk Protein Profile of Native and Improved Cattle Breeds Types in Sri Lanka

This study was conducted to assess the variations of milk coagulation properties (MCP) among two native cattle types, e.g., Thamankaduwa White (TW), Lankan cattle (LC) and two improved cattle breeds, e.g., Friesian (FR) and Jersey (JS), in relation to distinctive milk protein compositions. MCP traits, including rennet coagulation time (RCT), curd firmness, meltability and yield, were measured. The milk protein profile of each breed/type was analyzed using capillary zone electrophoresis. Significant differences (

RADIOPROTECTIVE ACTIVITY OF FICUS RACEMOSA ETHANOL EXTRACT AGAINST ELECTRON BEAM INDUCED DNA DAMAGE IN VITRO, IN VIVO AND IN SILICO

Objective: To investigate the radioprotective effect of Ficus racemosa (Fr) ethanol stem bark extract against electron beam radiation (EBR) induced DNA damage using in vitro, in vivo and in silico models.Methods: The extract of Fr was tested against radiation induced DNA damage by exposing pBR322 plasmid to different EBR dose rates. Comet assay was conducted using mice which were exposed at 6Gy EBR. In silico study was performed by inhibiting p53 protein C-chain (1TUP C) using phyto chemicals of Fr.Results: The in vitro results revealed that, Fr at lower concentration (50µg) showed inhibitory effect on radiation induced DNA damage compared with control. Exposure of mice to 6Gy EBR increased comet parameters like TL (Tail length), OTM (Olive tail moment) and %T (percentage of DNA in the tail) of blood lymphocytes. Fr ethanol extract given orally prior to irradiation at a dose of 400 mg/kg body weight protected the DNA from the radiation damage. The phytochemicals of Fr showed clear interaction with p53 protein chain C, specifically binding to Arginine 248 (ARG248) and Arginine 273 (ARG273) amino acid residues thereby inhibiting the p53 protein-DNA interaction upon radiation.Conclusion: The present study indicates that Fr ethanol extract significantly reduced radiation induced DNA damage in vivo and in vitro. It also showed that the biologically active compounds of Fr have ability to inhibit wild p53 protein which is responsible for apoptosis; these compounds can be used as radioprotectors during chemotherapy to protect normal tissues surrounding cancerous tissue.Â

Evidence of Balanced Diversity at the Chicken Interleukin 4 Receptor Alpha Chain Locus

Background: The comparative analysis of genome sequences emerging for several avian species with thefully sequenced chicken genome enables the genome-wide investigation of selective processes infunctionally important chicken genes. In particular, because of pathogenic challenges it is expected thatgenes involved in the chicken immune system are subject to particularly strong adaptive pressure.Signatures of selection detected by inter-species comparison may then be investigated at the populationlevel in global chicken populations to highlight potentially relevant functional polymorphisms.Results: Comparative evolutionary analysis of chicken (Gallus gallus) and zebra finch (Taeniopygia guttata)genes identified interleukin 4 receptor alpha-chain (IL-4Rα), a key cytokine receptor as a candidate with asignificant excess of substitutions at nonsynonymous sites, suggestive of adaptive evolution. Resequencingand detailed population genetic analysis of this gene in diverse village chickens from Asia and Africa,commercial broilers, and in outgroup species red jungle fowl (JF), grey JF, Ceylon JF, green JF, grey francolinand bamboo partridge, suggested elevated and balanced diversity across all populations at this gene, actingto preserve different high-frequency alleles at two nonsynonymous sites.Conclusion: Haplotype networks indicate that red JF is the primary contributor of diversity at chickenIL-4Rα: the signature of variation observed here may be due to the effects of domestication, admixtureand introgression, which produce high diversity. However, this gene is a key cytokine-binding receptor inthe immune system, so balancing selection related to the host response to pathogens cannot be excluded