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UPSI Digital Repository (UDRep)
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| 3111 | 2023 Article | Effect of tacit knowledge on student self-determination in Indonesia: a mixed-methods study Aslina Ahmad This study was initiated in response to the condition of students' low self-determination, which results in an inability to complete tasks well, a low achievement index, and even congestion and dropout. The research employed a mixed methodology with a concurrent embedded design and a selection without random assignment. The participants of this study were 406 undergraduate students in Indonesia, with 38 experimental and control participants, respectively. The self-determination instrument refers to the theory of Ryan and Deci, which was analyzed using the Rasch Model, and the effectiveness test used the Mann-Whitney U test. The results showed the impact of the identified regulation level that the focus of learning in higher education was successful in developing cognitive, affective, and psychomotor aspects but still needs to reach the development of students' self-determination dimension. The tacit knowledge model has advantages in the learning process that can be attached to all cour..... 424 hits |
| 3112 | 2023 Article | Immunosuppressive effects of annona muricata l. leaf extract on cellular and humoral immune responses in male wistar rats Mohd Azlan Nafiah Background: Annona muricata L. (Annonaceae) (AM)'s remarkable anti-inflammatory and anti-cancer activities make it a targeted plant to be explored for its immunomodulatory proper-ties. Traditional practitioners have employed various components of AM to cure a variety of ail-ments, including cancer, diabetes, and inflammation. Objective: The present study evaluated the immunosuppressive effects of 80% ethanol extract of of AM leaves in male Wistar rats on different parameters of humoral and cellular immune responses. Methods: AM leaf extract (AMLE) was analyzed using UHPLC-MS/MS to profile its secondary metabolites. AMLE was rich in polyphenols which include (epi)catechin-(epi)catechin-(epi) cate-chin, caffeic acid, coumaroylquinic acid, hyperin, kaempferol, quinic acid and rutin. The rats were administered 100, 200 and 400 mg/kg bw of the extract daily for 14 days. The effects of AMLE on innate immune responses were determined by evaluating phagocytosis, neutrophils migration, reac-tiv..... 470 hits |
| 3113 | 2023 Article | Estimating value uplift from transit investments in Subang Jaya, selangor using difference-in-difference method Mohd Faris Dziauddin It is generally believed that public transport investment such as urban rail transit systems can improve accessibility, particularly in larger and denser metropolitan areas. The improved accessibility provided by urban rail transit systems can drive up the value of surrounding land or property due to increased buyer demand. Based on this general belief, the study estimates the impact of the Kelana Jaya LRT line extension on residential property values in Subang Jaya, Selangor. Using Difference-in-Difference (DID) method with transaction-based data of 1,006 terraced properties, it is estimated that a typical terraced unit located within 0.8 km of the nearest LRT station and be sold during the construction phase of the project and after the system became operational would fetch a respective premium of approximately 4.7% and 5.3%, or RM31,490 and RM35,510 on average. It is also estimated that the overall impact on the price of terraced properties located within 0.8 km from the nearest LRT..... 643 hits |
| 3114 | 2023 Article | Content validity of an instrument to assess the low carbon approach in the front office department of tourist accomodation using I-CVI and mean analysis Nor Kalsum Mohd Isa The front office (FO) department manages reservation, registration, room and rate assignment, guest services, room status, concierge and bell service. The department services are crucial in developing a tourist accommodation into a low-carbon accommodation such as hotel, resort and others. The purpose of this study is to discuss the content validity of instruments for low-carbon tourist accommodation indicators in the FO department of hotels. Based on the theoretical framework, there are 53 indicators frequently used in constructing low-carbon FO instruments. The study employed the Item Content Validity Indexes (ICVI) analysis method and mean analysis to assess content validity. The method comprised item clarity, language appropriateness, and score scale using a five-point Likert scale to analyze expert evaluations of items using a questionnaire form. The instrument was assessed by a panel of six professionals in tourism, hospitality, and industry involved in low-carbon research. An in..... 356 hits |
| 3115 | 2023 Article | Chemical composition, anti-tyrosinase activity and molecular docking studies of knema malayana warb. essential oil Wan Mohd Nuzul Hakimi Wan Salleh Essential oils produced from aromatic plants denote significant biological activities and are gaining prominence in scientific research. In this study, the chemical composition, anti-tyrosinase activity, and molecular docking studies of Knema malayana Warb. essential oil was investigated. A hydrodistillation method was used to produce the essential oil, characterised by gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC/MS). Additionally, anti-tyrosinase activity was evaluated against mushroom tyrosinase, while molecular docking studies were performed with the major components. A total of 38 components (98.9%) were successfully identified in the essential oil, which was characterised by high proportions of ?-cadinene (20.2%), ?-cadinol (13.7%), ?-amorphene (10.3%), ?-cadinene (6.3%), ?-gurjunene (5.3%), ?-gurjunene (5.3%), and ?-muurolene (5.0%). The essential oil demonstrated moderate activity towards tyrosinase activity with an IC50 value of 85.3 ?g/mL. Conseque..... 295 hits |
| 3116 | 2023 Article | Sentiment analysis on covid-19 vaccine tweets using machine learning and deep learning algorithms Shazlyn Milleana Shaharudin One of the main functions of NLP (Natural Language Processing) is to analyze a sentiment or opinion of the text considered. In this research the objective is to analyze the sentiment in the form of tweets towards the Covid-19 vaccination. In this study, the collected tweets are in the form of a dataset from Kaggle that have been categorized into positive and negative depending on the polarity of the sentiment in that tweet, to visualize the overall situation. The reviews are translated into vector representations using various techniques, including Bag-Of-Words and TF-IDF to ensure the best result. Machine learning algorithms like Logistic Regression, Nave Bayes, Support Vector Machine (SVM) and others, and Deep Learning algorithms like LSTM and Bert were used to train the predictive models. The performance metrics used to test the performance of the models show that Support Vector Machine (SVM) achieved the highest accuracy of 88.7989% among the machine learning models. Compared to th..... 268 hits |
| 3117 | 2023 Article | Cross-sectional analysis of shooting distance of futsal players in Indonesian futsal league matches Elumalai, Gunathevan Putting the ball into the goal more than the opponent with shooting skills is the main principle of the futsal game. The study purpose was determined the shooting distance of futsal players in the Indonesian Futsal League match. This study also analyzed the shooting distance that scored and did not score. The research method used a cross sectional survey design. The sample consists of a Black Steel vs BTS match played by 20 players. Movie maker software was used for cutting videos of every shooting motion and Kinovea software was used for shooting distance analysis. The shooting motion was expressed in total shots, while the shooting distance taken by the players was expressed as the total distance, mean, and SD. The results showed that during the Black Steel vs BTS match, the total shots were 65 times with a total shooting distance of 708.12 meters, the average shooting distance was 10.894.57. From these shots, 5 shots scored with a total shooting distance of 26.36 meters, the average..... 1057 hits |
| 3118 | 2023 Article | Validity and reliability of the Young Futsal Specific Test Battery (YFSTB) to measure the skills performance of futsal players Elumalai, Gunathevan The research purpose was design, assess the validity and reliability of test-retest the Young Futsal Specific Test Battery (YFSTB) to measure the skill performance of young futsal players. YFSTB provided a competency assessment of futsal skills which includes running with the ball, wall pass, checking off (moving without the ball and returning to the ball), dribble with the ball, and shoot in the shooting area. YFSTBs assessment is based on response time and performance accuracy (errors in doing futsal tests are recorded in the form of time penalties). The 60 young futsal players participated in this study. All participants underwent YFSTB 2 times on 2 different days. Participants also completed a futsal match to assess the players technical-tactical behavior in the match. Intraclass correlation (ICC) and paired t-test were used to assess test retest reliability. To assess validity, researchers assessed content validity and construct validity. The results showed that all experts confir..... 1061 hits |
| 3119 | 2023 Article | Analysis of speed dribbling of futsal players in the 2021 Indonesian futsal league semifinals and finals Elumalai, Gunathevan Futsal players must mastered dribbling in the attack and defend pattern. The study purposes was analyzed the speed dribbling of futsal players and compare speed dribbling between round 1 and round 2 in the match of 2021 Indonesian Futsal League semi-finals and finals. The study method was used cross sectional survey design. Sample consist of 4 matches (2 semi-finals matches and 2 final matches) played by 4 teams (40 players). Movie maker software was used for cutting video every movement dribbling and Kinovea software used for analysis the distance and time of dribbling. To determined the speed dribbling counts with formula of distance shared time. Players speed declared as total, mean, SD. Difference speed dribbling player among round 1 and round 2 each team and every match calculated using Wilcoxon. Research results showed that there is not significant difference statistically on speed dribbling in round 1 and round 2 in semi-finals and finals match (p = 0.199 for semi-finals and p =..... 971 hits |
| 3120 | 2023 Article | Electrochemical sensor of multiwalled carbon nanotube electrode modified by 1-phenyl-3-methyl-4-orthofluoro benzoyl-5-pyrazolone for sensing dopamine Mohamad Syahrizal Ahmad This work explicates a simple, rapid, and sensitive method for the electrochemical detection of dopamine (DOP) utilising 1-phenyl-3-methyl-4-orthofluorobenzoyl-5-pyrazolone (HPMoFBP)/multiwalled carbon nanotube (MWCNT) carbon paste electrode (CPE). The electrochemical behaviour of DOP was performed through cyclic voltammetry and square wave voltammetry. HPMoFBP/MWCNT showed a higher current at the lower potential for the oxidation of DOP compared to bare MWCNT. The sensor's improved electrocatalytic activity was observed to detect in a 1.0 x 10-1 M phosphate buffer saline (PBS) solution at pH 8.0. A good linear regression analysis was observed between electrical response and the concentration of DOP in the range of 1 to 1000 M. Under optimized experimental conditions, 1.0 x 10-7 M has been determined as the limit of detection (LOD). The sensor has expressed considerable sensitivity towards DOP detection without interference and is successfully used to determine DOP in dopamine hydrochl..... 343 hits |
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