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971 | 2023 article | Preparation and characterization of FsHA/FsCol beads: cell attachment and cytotoxicity studies Ismail Zainol The present study was conducted to prepare the fish scales' hydroxyapatite/collagen beads (FsHA/FsCol) and characterize their biological, physical, and chemical properties. A new method was used to prepare FsHA/FsCol composite beads by infiltrating the beads of FsHA in the solution of FsCol as a green method. X-ray diffraction analysis (XRD), scanning electron microscopy (SEM) analysis, Fourier-transform infrared (FTIR) spectroscopy analysis and energy dispersive X-ray analysis (EDX), used to evaluate the physical-chemical properties of the synthesized samples. Meanwhile, the cytotoxic and attachment studies of the FsHA/FsCol beads were used to investigate the biological features against the MG-63 human cell line. The results specified the efficiency of the new method, functional groups of FsCol were indicated to be present inside the beads of FsHA according to the XRD analysis which shows the functional peaks of FsCol. The SEM image were conformed successfully use starch as a porous a..... 59 hits |
972 | 2023 article | Detection of orthodontically induced inflammatory root resorption-associated biomarkers from the gingival crevicular fluid by proteomics analysis: a randomized-controlled clinical trial Al-Obaidi, Jameel R. Orthodontically induced inflammatory root resorption (OIIRR) is an undesirable complication of orthodontic treatment (OT) with an ambiguous aetiologic mechanism. This study aimed to identify OIIRR-associated biomarkers in the gingival crevicular fluid (GCF) using proteomic analysis. In this randomized clinical trial, the upper first premolars (UFP) were exposed either to light or heavy force. The GCF was collected at 1h, 1day, 7days, 14days, 21days, and 28days following force application. After extraction of UFP, roots were imaged and resorption premolar, was used to deliver either light forcecraters were measured. Proteomic analysis of GCF was performed using 2D gel electrophoresis with MALDI-TOF/TOF MS/MS. Results were further analyzed by bioinformatics analyses showing the biological functions and predicted pathways. The predicted canonical pathways showed that the expression of immunoglobulin kappa (IGKC), neutrophil gelatinase-associated lipocalin (NGAL), neurolysin mitochondrial ..... 85 hits |
973 | 2023 article | Effect of anxiety and self-efficacy on class performance in Arabic language online class Mei, Suo Yan This study aimed to explore the effect of anxiety and self-efficacy on class performance in Arabic language online classes. This study used a quantitative research approach, and the data was collected through a survey instrument administered to 148 first-year Arabic learner students enrolled in an Arabic language online class. The data were analysed using descriptive statistics as well as a structural equation model to examine the relationship between variables. The study?s results showed that anxiety had a negative effect on class performance, while self-efficacy positively impacted class performance. Therefore, anxiety is the main contributor to Arabic online learning performance. Additionally, self-efficacy was found to have a moderating effect on the relationship between anxiety and class performance. The findings of this study suggest that anxiety and self-efficacy are important factors to consider in an online learning environment, as they can significantly impact class performan..... 72 hits |
974 | 2023 article | Optical trapping of a single chloroform microdroplet in water Muhamad Safuan Mat Yeng The study aims to optically trap a single chloroform (CHCl3) microdroplet in water using optical tweezers. The study also investigates the effect of the preparation procedure by sonication on the chloroform microdroplet size and its stability in water. This microdroplet can potentially act as a carrier containing active molecules and for sensor applications in a fluid. The chloroform is sonicated in deionized water to produce a chloroform microdroplet solution. The size of the resultant microdroplets is observed under the optical microscope. The stability of the chloroform microdroplets in water was studied by monitoring the absorption spectra within a specified duration of time for 1 hour. A single chloroform microdroplet in the water is trapped using a 976 nm continuous laser beam with optical tweezers. The finding shows that the average size of the produced chloroform microdroplets does not vary significantly when the sonication time is less than 10 minutes. Furthermore, Chloroform ..... 95 hits |
975 | 2023 article | Active extrapolation of dimsims in nordsieck representation Annie Gorgey Diagonally implicit multistage integration methods (DIMSIMs) are widely utilized in finding the solution to any problems in the subject of ordinary differential equations. These methods are selected from the general linear methods, which is considerable potential for efficient implementations. The extrapolation is derived from the stability of the explicit Runge-Kutta methods. In this paper, the combination of DIMSIMs with Richardson extrapolation of different orders shows that numerical solutions give higher accuracy when the extrapolation is applied with the base method. 2023 Penerbit UTM Press... 94 hits |
976 | 2023 article | Micromorphological analyses of stomata and epidermal cell among different species in the genus Premna L. (Lamiaceae) Nor Nafizah Mohd Noor The genus Premna in Lamiaceae family was categorized into two groups namely P. serratifolia-group and P. trichostoma-group by de Kok in 2013. The division was based on three distinct morphological characters which are twigs, calyx and fruit. This group category lacks of anatomical and micromorphological evidence and solely based on those morphological characters. Therefore, in this study, anatomical and micromorphological characters were analysed on six Premna species (P. interrupta, P. serratifolia, P. trichostoma, P. tomentosa, P. parasitica and P. odorata) from few localities in Peninsular Malaysia. They were investigated to determine the size of stomata and some epidermal characters among the species members to provide some evidence towards the division. The methods involved in this research were epidermal peel preparation and field emission microscopy (FESEM) technique. The stomata were observed under the microscope and also photographed at different magnifications. Based on the o..... 135 hits |
977 | 2023 article | Effect of alumina and thiol\s roles for Hg2+ adsorption in wastewater a short review Aisyah Mohamad Sharif The issue of mercury (Hg2+) existing in water supplies has been brought up since it has an impact on both people and the environment. The ideal method for removing Hg2+ is adsorption since it is easy to use, highly effective, and economical. Alumina composite and thiols are two probable substances that have been used to remove Hg2+ from wastewater, but it is still unclear how these substances work when it comes to adsorbing the metal. In order to observe the present method of removing Hg2+ from wastewater, this review has been undertaken. This study examined the characteristics, processes, and qualities of two different types of adsorbents: alumina and thiol. There are numerous phases of alumina, and each has distinct properties. The characteristics of alumina at various temperatures, levels of porosity, and surface area, as well as its primary identification as a Hg2+ adsorbent by the bonding of Al-Hg in XPS, XRD, and TEM, are described. Additionally, through imaging and bonding confi..... 111 hits |
978 | 2023 article | The effects of the communicative approach and the use of information technology on students motivation and achievement in Indonesian language learning Wong, Kung Tech This study aimed to explain the structural influence of the implementation of the communicative approach and the use of information technology in Indonesian language learning on students motivation and learning achievement. This research was conducted in Blitar, Indonesia, and 186 students were chosen as the samples. An explanatory research design was used in this research. The data collection techniques used questionnaires and documentation, while data analysis techniques used descriptive statistics and structural equation modeling. The results of the analysis showed that there was a direct effect of the communication approach and the use of information technology on students learning motivation. There was a significant direct effect of students learning motivation on students achievement in the Indonesian language class. The communicative approach had an indirect effect on students achievement and showed a stronger coefficient of the effect on learning motivation compared to the use ..... 88 hits |
979 | 2023 article | Developing forecasting model for future pandemic applications based on COVID-19 data 2020-2022 Nurul Hila Zainuddin Improving forecasting particularly time series forecasting accuracy, efficiency and precisely become crucial for the authorities to forecast, monitor, and prevent the COVID-19 cases so that its spread can be controlled more effectively. However, the results obtained from prediction models are inaccurate, imprecise as well as inefficient due to linear and non-linear patterns exist in the data set, respectively. Therefore, to produce more accurate and efficient COVID-19 prediction value that is closer to the true COVID-19 value, a hybrid approach has been implemented. Thus, aims of this study is (1) to propose a hybrid ARIMA-SVM model to produce better forecasting results. (2) to investigate in terms of the performance of the proposed models and percentage improvement against ARIMA and SVM models. statistical measurements such as MSE, RMSE, MAE, and MAPE then conducted to verify that the proposed models are better than ARIMA and SVM models. Empirical results with three real datasets of w..... 65 hits |
980 | 2023 article | Systematic literature review: effectiveness of a teaching aid based on the achievement and interest of students in the field of measurement and geometry Shazlyn Milleana Shaharudin The purpose of this systematic literature review (SLR) is to identify: (a) the topic of the study, (b) the research methods used, and (c) the results of research on Mathematics education in Malaysia. This study discusses the use of teaching aid (TA) in the field of syllabus and geometry for Form 2 students. The use of TA is considered highly successful and relevant for educators to improve the quality of the teachers instructions and students understanding. Therefore, using the rules of optional reporting items for systematic review and meta-analysis (PRISMA) by Moher et al. (2015), a review system was carried out to determine the appropriate strategies and variables for the field. Four stages constitute the PRISMA paradigm used in this study: identification, screening, qualification, and admission. Using criteria opted by researchers from multiple searches, including Google Scholar, Researchgate, Scopus, and Emerald, over 20 papers were identified for additional investigation. The dat..... 67 hits |
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