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All Journal BERKALA SAINSTEK Jurnal Teknik Kimia The Journal of Pure and Applied Chemistry Research Konversi JURNAL PUSTAKA BUDAYA al-Afkar, Journal For Islamic Studies JUKEJ: Jurnal Kesehatan Jompa Jurnal Penelitian Multidisiplin Bangsa JURNAL REKAYASA KIMIA & LINGKUNGAN
Widiyastuti Widiyastuti
Universitas Islam Negeri Sunan Kalijaga Yogyakarta
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Veterinary

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The Effectiveness of the Problem Based Learning Model Assisted by Snake and Ladder Game Media on Student Learning Outcomes Widiyastuti, Widiyastuti; Mahluddin, Mahluddin; Arif Wiratama
al-Afkar, Journal For Islamic Studies Vol. 9 No. 2 (2026)
Publisher : Perkumpulan Dosen Fakultas Agama Islam Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/afkarjournal.v9i2.3298

Abstract

This study aims to analyze the effect of implementing the Problem-Based Learning (PBL) model assisted by the Snake and Ladder Game (SLG) media on the cognitive learning outcomes of students in Mathematics in grade II at MI Al-Munawwarah, Jambi City. This study used a quantitative approach with a quasi-experimental method and a Nonequivalent Control Group Design. There were 57 students in the study, divided into an experimental class and a control class. The experimental class was taught using the PBL model assisted by the SLG media, while the control class used the PBL model without the game media. Data collection was conducted through pre-tests and post-tests, while data analysis used descriptive and inferential statistics, including normality tests, homogeneity tests, Independent Sample t-Tests, and N-Gain analysis. The results showed that the average post-test scores and N-Gain of the experimental class were higher than those of the control class. The t-test results obtained a significance value of 0.047 (< 0.05), which indicates a significant difference in learning outcomes. Thus, it can be concluded that the application of the PBL model assisted by the Snake and Ladder Game media has a significant effect on improving students' cognitive learning outcomes in mathematics learning.
Process intensification of silica amination through ultrasound-assisted impregnation: toward highly efficient amino-functionalized particles Ajiz, Hendrix Abdul; Widiyastuti, Widiyastuti; Setyawan, Heru; Suryandari, Ade Sonya; Erliyanti, Nove Kartika
Konversi Vol 15, No 1 (2026): APRIL 2026
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v15i1.25507

Abstract

Amine-functionalized porous silica is a highly promising material for sustainable carbon capture; however, increasing amine loading is often limited by pore blocking and diffusion resistance of the modifying agents. This study proposes an ultrasound-assisted ex-situ impregnation strategy to enhance aminopropyl grafting efficiency within macroporous silica matrices. Macroporous silica particles were synthesized via a sol-gel spray drying route using an anionic surfactant template and subsequently functionalized with alkoxy-aminopropyl ligands. The results demonstrate that the synergistic effects of ultrasonic irradiation and macroporous morphology significantly improve ligand distribution homogeneity, suppress particle agglomeration, and promote aminopropyl penetration into the internal pore network while minimizing pore blocking induced by self-condensation. FTIR and TG-DTA analyses confirm a substantial increase in aminopropyl loading up to 0.9610 mmol g-1 silica, nearly twice that achieved by conventional impregnation, despite a reduction in specific surface area due to pore filling. Overall, this approach provides an efficient and scalable pathway for producing amine-rich silica adsorbents with enhanced accessibility and strong potential for sustainable CO2 capture applications.
Enhancing Cellulose-Gelatin Film Properties for Wound Dressings Application: The Role of Ultrasonic-Assisted Pretreatment Shafira Nur Adiningsih; Sekar Tri Wulan Amelia; Ni Made Intan Putri Suari; Heru Setyawan; Widiyastuti, Widiyastuti; Nurtono, Tantular
The Journal of Pure and Applied Chemistry Research Vol. 15 No. 1 (2026): Edition January-April 2026
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2026.015.01.7954

Abstract

This study aims to enhance the cellulose-gelatin film properties using ultrasonic-assisted pretreatment for wound dressing applications. The film is made from cellulose isolated from avocado seed waste, composited with gelatin, and applied citric acid as a crosslinker and antimicrobial agent. The main factor that affects the performance of cellulose in films was dispersion of cellulose within the composite material. To improve cellulose dispersion, cellulose was pretreated using ultrasonic-assisted methods, its effects on film’s properties were investigated and compared with no ultrasonic pretreated cellulose. Scanning electron microscopy revealed more even dispersion in ultrasonic pretreated samples, further confirmed by their chemical bonds analysis. These improvements significantly enhanced the mechanical properties of the composite film, increasing the tensile strength from 0.099 MPa to 0.988 MPa and the percent elongation from 77 % to 106 %. Moreover, films with ultrasonic pretreated cellulose exhibited resilient swelling behavior, indicating better resilience in aqueous environment. Additionally, films revealed antibacterial activity against gram-positive and gram-negative bacteria, which has inhibition zone against Escherichia coli for CF-nSON and CF-SON are 39 mm and 35, mm respectively. As the inhibition zone against Staphylococcus auerus for CF-nSON and CF-SON are 33 mm and 26.3 mm, respectively. These results are pointing out their performance as wound dressing.
Co-Authors Adhi Setiawan Ajiz, Hendrix Abdul Ansori, Wheny Churnia Ningsih Arif Wiratama Eka Mayangsari, Novi Eko Kurniawan Erliyanti, Nove Kartika Heru Setyawan Heru Setyawan Hikmanti, Arlyana Kurniawati, Vita Kusdianto, Kusdianto Lestariningsih, Endang Dwi Lizda Johar Mawarani Mahendra P, I. G. Wahyudi Mahluddin Mahluddin Ni Made Intan Putri Suari Noviana, Yeyen Novitasari, Veradiana Nugroho, Agung R. Andini, R. Andini Ratnasari, Delyana Rendra, Y. Erwin Prana S. Machmudah, S. Machmudah S. Winardi, S. Winardi Sasongko, Wahono Hasfi Yudo Sebayang, Septian Mixrova Sekar Tri Wulan Amelia Setyowati, Riesha Shafira Nur Adiningsih SRIE MULJANI Suari, Ni Made Intan Putri Suryandari, Ade Sonya T. Nurtono, T. Nurtono Tantular Nurtono Tulaini, Sahara