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2231

Extraction, identification of chemical constituents, and in vitro evaluation against cells and bacterial pathogens of the leaves of polyalthia rumphii

Ismail Zainol

Abstract

Polyalthia rumphii (P. rumphii) is a member of the Annonaceae family with a wide distribution in tropical and subtropical regions. In traditional Chinese medicine, various members of this genus have been employed as medicinal plants to address refractory ailments. The Li ethnic minority, primarily residing in Hainan Island, has traditionally utilised extracts derived from P. rumphii for fever prevention, hypertension management, and the inhibition of cancer cell growth. The current study aimed to extract P. rumphii leaves and identify their chemical components using GS-MS and traditional phytochemical methods. This study evaluated the LPr's biomedical properties using antibacterial and cytotoxicity activities. Three solvents were employed to extract the LPr: hexane, dichloromethane (DCM), and methanol (MeOH). Prepared samples were collected and labelled as HLPr, DLPr, and MLPr, respectively, and their biomedical activities were assessed. The results of phytochemical screening showed th.....

Article Published 2024 327 hits Available

2232

Effect of mixed TeO2–B2O3 glass former in Ho3+/Yb3+-doped glass system: Raman spectroscopy, Judd-Ofelt and luminescence investigations

Muhammad Noorazlan Abd Azis

Abstract

In this work, glass with composition (75-x)B2O3-xTeO2-11Bi2O3–10Li2O-1Ho2O3-3Yb2O3 (x = 10–60 mol%) were synthesized using the melt quenching technique to investigate the effect of mixed glass former between TeO2 and B2O3 on the spectroscopic properties of glass. The Raman Spectroscopy has revealed a structural depolymerization undergone by the glasses with a sudden increment at x = 30 mol% that might arise from structural competition between TeO2 and B2O3. Optical absorption spectra have revealed 9 absorption peaks corresponding to Ho3+ ion transitions while one peak belongs to Yb3+ ion transition. The bonding parameter signifies the glasses are ionic in nature. The oscillator strength and Judd-Ofelt parameter Ω2,4,6 have reduced against increment of TeO2 concentration indicated a low asymmetry and low rigidity except for x = 30 mol% that may be due to strong interaction between TeO2 and B2O3. The radiative properties such as spontaneous emission probability, branching ratio, rad.....

Article Published 2024 192 hits Available

2233

The fundamental motor skills and motor coordination performance of children in West Sumatera Province, Indonesia

Mohd Izwan Shahril

Abstract

Background and Study Aim Material and Methods Results Conclusions Good motor coordination is needed to achieve good fundamental motor skills. This study aimed to analyze and describe the relationship between fundamental motor skills and motor coordination performance of elementary school students aged 7 to 9 years old. The subjects were elementary school students in grades 1, 2, and 3 with a total number of students was 478 (248 male students, and 230 female students) in 8 cities and regencies in West Sumatera, Indonesia. This study used a cross-sectional research design. The fundamental motor skills were examined using the Test of Gross Motor Development-Second Edition. This included assessing locomotor skills (running, galloping, sliding, leaping, hopping, and jumping) and object control skills (striking, catching, throwing, dribbling, rolling, and kicking). Motor coordination performance was assessed by using the Körperkoordinations Test für Kinder including balance beam, moving s.....

Article Published 2024 422 hits Available

2234

Cs+ substituted SrZnFe2O4 nanoparticles: Analysis of structural, morphological and electrical behavior

Suriani Abu Bakar

Abstract

The effect of Cs+ substitution on strontium zinc ferrites was reported. The cubic spinel phase of Sr0.5Zn0.5Fe2-xCsxO4 (0.01 ≤ x ≤ 0.09) was revealed from XRD analysis. The variation of lattice parameters with Cs+ substitution is attributed to Vegards law. The particle size of X-ray diffraction and W‒H were calculated in the range of 21–32 and 41–56 nm, respectively. Williams Hall and the size–strain plot are frequently utilized to understand the mechanical and structural properties of spinel ferrites. The morphological structure of strontium zinc spinel ferrites was examined by SEM. SEM depicts nanorods and spherical-like structures with a porous nature. FTIR was used to observe the bands of spinel ferrites within the range of 400–4000 cm−1. The absorption bands were obtained from 400 to 600 cm−1 range and these bands are used in fingerprint regions. Ohmic nature was revealed through I–V characteristics of Cs+-doped strontium zinc ferrites. Electrical properties.....

Article Published 2024 243 hits Available

2235

Effects of pervasive game on behavioral intention towards fitness among older adults in Henan: An empirical study

Erni Marlina Saari

Abstract

Improving the fitness of older adults is a primary concern in countries with rapidly growing aging populations. This study examines older adults’ behavioral intention to engage in fitness activities using a bespoke pervasive game called Agoing. Based on the Unified Theory of Acceptance and Use of Technology 2 (UTAUT2) model, this study developed the UTAUT-LK model, ‘LK’ is an acronym for linear and knowledge. The UTAUT-LK model tested five independent variables in a single-group quasi-experiment. Data were collected from 378 participants using a 20-item questionnaire and subsequently analyzed through a structural equation model. The results indicate that effort expectancy (EE, p =.033), social influence (SI, p =.029), and hedonic motivation (HM, p ..

Article Published 2024 460 hits Available

2236

Is knowledge management a missing link? linking entrepreneurial competencies and sustainable performance of manufacturing SMEs

Nurul Aini Mehat

Abstract

Purpose: By combining relevant literature and using quantitative methodology, this study aims to look into the role of knowledge management (KM) as a mediator between entrepreneurial competencies (ECs) and the sustainable performance (SP) of manufacturing small and medium-sized enterprises (SMEs). Design/methodology/approach: The relationships in the proposed model were examined with data collected from 122 Malaysian SMEs using a cross-sectional technique and a standardized questionnaire and analyzed using structural equation modeling path analysis. Findings: According to the findings, ECs have a positive and considerable impact on KM as well as the SP of manufacturing SMEs. Importantly, KM partially mediates between ECs and the SP of manufacturing SMEs. Research limitations/implications: This research provides a theoretical contribution through the integration of ECs, KM and SP within a unified framework that takes into account the viewpoints of the resource-based view, the knowledge-.....

Article Published 2024 400 hits Available

2237

Theoretical foundation for developing instructional guide for china pre-service EFL teachers to teach phonics

Raja Nor Safinas Raja Harun

Abstract

In China, the absence of a phonics instructional guide hinders pre-service EFL teachers’ preparation for phonics instruction. To bridge the gap, the purpose of this article is to lay the theoretical groundwork for developing a phonics instructional guide for Chinese pre-service EFL teachers and then to produce a research methodology for this instructional guide. The Bottom-up Theory of Reading Process; the S-R Theory with Reinforcement, particularly Instrumental Conditioning; and the Trial-and-Error Theory of Learning all have pedagogical implications for implementing explicit and systematic phonics instruction for EFL beginners in China. Additionally, in conjunction with the Andragogy Theory of Adult Learning, these theories provide a theoretical foundation for instructional design. Following the ADDIE sequential framework, a multi-phase mixed methods experimental design was used to collect data from 254 representative samples chosen through a stratified random sampling technique. T.....

Article Published 2024 305 hits Available

2238

Patterns in assignment submission times: Analysis of factors contributing to undergraduate students’ commitment to core-curriculum related course

Siti Musliha Mat Rasid

Abstract

Co-curricular activities equip students with essential skills and knowledge for personal and professional growth. Despite their importance, many students exert minimal effort to complete the assigned tasks. Instructors perceive that the lack of emphasis on final exams in co-curricular subjects reduces student effort and commitment. Moreover, poor time management and lack of effort in completing tasks have increased across various subjects in recent years. Therefore, it is important to investigate the factors that contribute to student commitment towards co-curricular subjects. In this study, the submission status of 339 tasks was retrieved from the student learning system to measure student commitment based on whether tasks were submitted on time, delayed, or not submitted. A chi-square test f was used to investigate the relationship between students’ demographic characteristics and their commitment. The findings revealed a significant association between student commitment and the t.....

Article Published 2024 260 hits Available

2239

Football as the formation of adolescent character and preventive program to overcome juvenile delinquency: A perspective from sport psychology

Zulakbal Abd Karim

Abstract

Adolescence is a crucial age at which juvenile delinquents commonly appear. Therefore, analyzing the juvenile delinquency prevention strategy at this age is crucial. One known preventive strategy for juvenile delinquents is sports activity. Therefore, this study aims to obtain in-depth information about the role and use of football as an effort to form a positive adolescent personality as well as a way to overcome the problem of juvenile delinquency. This study uses qualitative methods with a grounded theory approach. A total of 10 youth coaches licensed with a minimum of 5 years of experience in football coaching and five parents of children athletes participated in this research. This research uses data triangulation, namely open-ended semi-structured interviews, observation, and document analysis, as data collection procedures. The collected information is then analyzed using themes. The results of the study revealed that football is a medium that is able to shape teenagers’ chara.....

Article Published 2024 552 hits Available

2240

Explainable artificial intelligence multimodal of autism triage levels using fuzzy approach-based multi-criteria decision-making and LIME

Alamoodi, Abdullah Hussein

Abstract

A new framework for explainable artificial intelligence in the context of multimodal triage for autism spectrum disorders (ASD) using a fuzzy approach-based multi-criteria decision-making (MCDM) is proposed in this study. The framework consists of five phases. In the first phase, a real ASD dataset of 538 autistic patients is obtained and diagnosed based on 42 medical and sociodemographic criteria. In the second phase, an ASD methodology for triaging the 538 autistic patients into three levels (i.e., minor, moderate, and urgent) is presented using fuzzy approach-based MCDM techniques, namely, fuzzy Delphi method and fuzzy-weighted zero-inconsistency, followed by the processes for triaging autism patients. In the third phase, cost-sensitive learning is employed to balance two ASD datasets: one labeled based on the ASD triage methodology and the other labeled by specialized psychologists. Two multimodal of artificial intelligence are developed in the fourth phase using nine machine-learn.....

Article Published 2024 309 hits Available

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