Since year 2020, researchers have conducted research on challenges and perceptions of emergency remote teaching and learning (ERTL) during the COVID-19 pandemic on students. Many studies were conducted on the effectiveness of online learning, but there is a lack of studies on ERTL where online learning differs from ERTL. Thus, this study aims to identify the challenges and perceptions of students on ERTL during the early COVID-19. The methodology employed in this study are systematic literature review which used Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA), synthesis analysis and quality appraisal to review 51 selected articles. These articles are from two publishers (ScienceDirect and IEEE) and two databases (ERIC and Scopus). This study revealed that students experienced four types of challenges during the early period of ERTL namely technological, pedagogical, personal, and social issues. However, students have positive perceptions toward ERTL to pursu.....

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A computer-aided language translation using a Machine translation (MT) is an application performed by computers (machines) that translates one natural language to another. There are many online language translation tools, but thus far none offers a sequence of text translations for the under-resourced Kadazandusun language. Although there are web-based and mobile applications of Kadazandusun dictionaries available, the systems do not translate more than one word. Hence, this paper aims to present the discussion of the preliminary translation of Malay to Kadazandusun. The basic word-to-word with dictionary alignment translation based on Direct Machine Translation (DMT) is selected to begin the exploration of the translation domain where DMT is one of the earliest translation methods which relies on the word-to-word approach (sequence-to-sequence model). This paper aims to investigate the under-resourced language and the task of translating from the Malay language to the Kadazandusun lan.....

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Plant-derived natural products are an important source of potential medicines and continue to have a major impact on the drug discovery process. Natural product discovery assignments provide an opportunity to present various experimental techniques to undergraduate students in introductory medicinal chemistry. This assignment was developed to serve as a meaningful hands-on exercise to introduce undergraduate Chemistry students to the common procedure in the early phase of drug discovery using inexpensive corn silk, in which the final year undergraduate student used Recycling Preparative High-Performance Liquid Chromatography to separate and purify steroids from corn silk. The student used advanced spectroscopic methods such as UV, IR, and one- and two-dimensional NMR to elucidate the structures of these steroids. The cytotoxic activity of these steroids was also evaluated and found to be non-cytotoxic to normal human MRC-5 cells at 60 ?g/mL via 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl.....

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The fabrication of a zinc hydroxide nitrate-sodium dodecylsulfate bispyribac modified with multi-walled carbon nanotube (ZHN-SDS-BP/MWCNT) paste electrode for uric acid and bisphenol A detection was presented in this study. Electrochemical impedance spectroscopy, chronocoulometry, square-wave voltammetry, and cyclic voltammetry were all used to examine the electrocatalytic activities of modified paste electrodes. The modified electrode's sensitivity and selectivity have been considered in terms of the composition of the modifier in percentages, the types of supporting electrolytes used, the pH of the electrolyte, and square-wave voltammetry parameters like frequency, pulse size, and step increment. Square-wave voltammetry is performed by applying a small amplitude square-wave voltage to a scanning potential from -0.3 V to +1.0 V, demonstrating a quick response time and high sensitivity. The ZHN-SDS-BP/MWCNT sensor demonstrated a linear range for uric acid and bisphenol A from 5.0 M to .....

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This study aims to develop a reliable instrument measuring the assessment literacy of ESL teachers through Exploratory Factor Analysis based on five constructs. A survey was administered to 200 secondary school ESL teachers. The study revealed that only 78 items with a cut-off point of above .60 from the factor loading are retained. Cronbachs Alpha showed that the items retained are reliable. This study developed and validated an instrument to measure ESL teachers assessment literacy in the Malaysian context. An assessment literacy framework can be developed based on this research which will benefit the education field in Malaysia. 2023, North American Business Press. All rights reserved...

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Assessment for Learning (AfL) and Assessment as Learning (AaL) are gaining increasing prominence especially in university EFL writing lessons. This study sheds light on the practices and values of Indonesian EFL writing teachers towards AfL and AaL strategies during the constrained context of online learning setting because of the COVID-19 pandemic. By using descriptive statistics and thematic analysis, explanatory sequential mixed method was used in conjunction with a case study research design. Quantitative data were obtained from 54 teachers who responded to the AfL and AaL Strategy Questionnaire (AfL-AaLSQ), indicating their practices and values of AfL-AaL strategies. Meanwhile, the qualitative data were the results of interview sessions with seven selected participants, who described their practices and values in details. The findings show that all respondents accorded high importance to all AfL-AaL strategies and rated themselves as frequently implementing the AfL-AaL strategies......

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Background and Study Aim Material and Methods In the physically demanding combat sport of Silat, strength and power dominate. Consequently, applying various stance widths during barbell hip thrusts may tailor athletes lower-body exercises to individual needs. This has the potential to optimize performance. The aim of this study is to investigate the impact on performance of power, speed, and stance width among Silat combat athletes. Participants performed 10RM tests in three stance widths: wider than shoulder width (WSW), normal shoulder width (NSW), and narrower than shoulder width (NRW). This was done using a 72-hour counterbalance cross-over study design. Power and velocity were measured and analyzed using a mixed ANOVA design. Results The results indicated a significant main effect of stance width on power (F(2,56) = 3.086, p < 0.05) and velocity (F(2,56) = 3.683, p < 0.03) output. Both males and females demonstrated the highest power in NRW (M = 413.26, SD = 131.76; M = 239.53, SD.....

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The present study focuses on using jackfruit seed waste (JSW) for bioremediation of heavy toxic metals from water. The fruit is abundantly grown in India and Far East countries and produces myriad tons of seeds. A simple procedure is developed in the laboratory by thermally activating JSW by orthophosphoric acid at 500 C. Surface morphology, porosity, and structural analyses of the resultant biochar were conducted. The activated biochar was applied for batch adsorption of several heavy metal ions: Fe(III), Cd(II), Cu(II), Pb(II), and Mn(VII) at pH 7. The average heavy metal uptake by activated JSW biochar is 76.4 mg g?1, 79.4 mg g?1, 97.9 mg g?1, 79.9 mg g?1, and 79.8 mg g?1 for Fe(III), Pb(II), Cu(II), Cd(II), and Mn(VII), respectively. The experimental conditions were optimized to remove heavy metals at neutral pH. The adsorption process was exothermic, and Langmuir and pseudo-second-order kinetic study models were best fitted. The observation was in close agreement with the experime.....

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Since the COVID-19 pandemic, telemedicine or non-face-to-face medicine has increased significantly. In practice, various types of medical images are essential to achieve effective telemedicine. Medical image encryption algorithms play an irreplaceable role in the fast and secure transmission and storage of these medical images. However, most of the existing medical image encryption algorithms are full encryption algorithms, which are inefficient and time-consuming, so they are not suitable for emergency medical scenarios. To improve the efficiency of encryption, a small number of works have focused on partial or selective encryption algorithms for medical images, in which different levels of encryption strategies were adopted for different information content regions of medical images. However, these encryption algorithms have inadequate security more or less. In this paper, based on the Logistic map, we designed an improved variable dimension map. Then, an encryption algorithm for med.....

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As global median temperatures continue to rise, the demand for active cooling systems (ACs) is increasing. These systems are particularly prevalent in developed countries for maintaining comfort during hot weather. Various ACs technologies are available, and assessing their performance in multi-perspective settings is necessary to determine the best option for intended usage. This requires an evaluation platform for assessment. This paper presents a novel multi-criteria decision-making (MCDM) model based on a new integrated 2-tuple linguistic Pythagorean fuzzy-weighted zero-inconsistency (2 TLP-FWZIC) and modified 2-tuple linguistic Pythagorean fuzzy multi-attributive border approximation area comparison (2TLPF-MABAC). The former is used to determine the importance of assessment criteria, while the latter is employed for selecting the optimal ACs using the obtained weights. The first-level weighting results reveal that performance criteria were predominantly favored for assessment, wit.....

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