Phytochemical investigation of methanolic extract of L. rubiginosa using modern chromatographic techniques has led to the isolation of three new triterpenoid saponins, lepiginosides A-C (1-3), a new farnesyl glycoside, lepiginoside D (4), together with lepisantheside B (5) and gleditsoside C (6). The characterization and structural elucidation of the isolated compounds were established by extensive spectroscopic data analysis and comparison with literature data. Moreover, the antibacterial activity against seven bacteria, but none is active. © 2022 Informa UK Limited, trading as Taylor & Francis Group...

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Despite the acknowledged importance of integrating creativity into school curricula, students with learning disabilities often lack the skill of creativity, due to its absence in classroom instruction. To address these gaps, the authors developed a needs analysis questionnaire assessing the necessity of a creativity module for primary school students with learning disabilities, focusing on Torrance's four creativity elements: (a) Originality, (b) Fluency, (c) Flexibility, and (d) Elaboration. This study, emphasizing content validity and reliability testing, comprised rigorous validation by a panel of nine special education experts, resulting in high content validity scores. In Part II, all items were accepted, yielding an overall S-CVI score of 0.97, indicating a ‘very suitable’ construct. In Part III two items were rejected; the overall S-CVI score remained at 0.80, signifying ‘very suitable’. A pilot test with 30 special education teachers demonstrated Cronbach's Alpha values.....

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Investigating learners' motivational factors from Basic Psychological Needs (BPN) has been prevalent in a foreign/second language domain, but there is a dearth of well-documented research on ESP instruction. This study addressed the void by scrutinizing ESP learners' BPN of relatedness, competence, and autonomy using a validated and reliable BPN instrument to assess online ESP practices and challenges within unideal EFL situations. A total of 617 ESP students and 94 ESP lecturers from 14 universities across provincial areas of Indonesia participated in the study. A mixed-method design administering questionnaire and interview was applied to draw ESP students' BPN from the perspective of lecturers and students. The results revealed significant differences between lecturers' and learners' perceptions regarding several indicators of relatedness, competence, and autonomy categories. While the lecturers' questionnaire and interviews reported that the ESP students had an acceptable level of .....

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The cornerstone of success for governmental organizations, particularly when employees lack motivation, is their commitment. This research delves into the dynamics of employee loyalty within the public sector of Dubai, examining the interplay between leadership approaches and employee dedication, with a special focus on the Dubai Immigration Department (DID). Furthermore, it evaluates how communication influences the nexus between leadership styles and employee commitment at DID. Employing quantitative methodologies for data gathering and analysis through smart-PLS, the study uncovers that both transformational and transactional leadership positively impact employee commitment at DID. Additionally, a notable correlation exists between these leadership styles and communication effectiveness. It was also discovered that communication positively mediates the relationship between the two leadership styles and employee commitment. This research's novel contribution lies in highlighting comm.....

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Malaria, a devastating disease, has claimed numerous lives and caused considerable suffering, with young children and pregnant women being the most severely affected group. However, the emergence of multidrug-resistant strains of Plasmodium and the adverse side effects associated with existing antimalarial drugs underscore the urgent need for the development of novel, well-tolerated, and more efficient drugs to combat this global health threat. To address these challenges, six new hydantoins derivatives were synthesized and evaluated for their in vitro antiplasmodial activity. Notably, compound 2c exhibited excellent inhibitory activity against the tested Pf3D7 strain, with an IC50 value of 3.97 ± 0.01 nM, three-fold better than chloroquine. Following closely, compound 3b demonstrated an IC50 value of 27.52 ± 3.37 µM against the Pf3D7 strain in vitro. Additionally, all the hydantoins derivatives tested showed inactive against human MCR-5 cells, with an IC50 value exceeding 100 μM. .....

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This research aimed to generate electricity from polystyrene waste materials combined with zinc oxide (ZnO) nanomaterials. Developing alternative polystyrene waste materials for generating electricity in triboelectric nanogenerator (TENG) could be beneficial in a circular economy and sustainable development. With the motivation to reduce environmental pollution by using polystyrene waste, a recycled polystyrene-ZnO nanocomposite film (rPS-ZnO NF) was synthesized and served as a triboelectric material for energy harvesting applications. ZnO nanopowder was produced by a low-temperature solution immersion method in conjunction with a simple film-casting method to prepare the rPS-ZnO NF. The effects of varying amounts of toluene as a solvent medium and the immersion time in stearic acid (SA) solution treatment on the structural properties, wettability behavior, surface morphology, chemical bonding properties, surface characteristics, and TENG performance were investigated. In this work, rP.....

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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.....

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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.....

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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.....

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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.....

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