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Adsorpsi Ion Amonium dari Larutan Encer Menggunakan Zeolit Alam Sarulla Termodifikasi KCl Husin, Amir; Harahap, Hamidah; Ansari, Wan Rizki; Supriharti, Denny; Fadhila, Fadhila
Jurnal Teknik Kimia USU Vol. 14 No. 1 (2025): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v14i1.16240

Abstract

This study aims to evaluate the effectiveness of KCl-modified Sarulla natural zeolite in removing ammonium ions from aqueous solutions. The zeolite was modified by soaking in 0.5 M (ZA05) and 1.5 M (ZA15) KCl solutions for 24 hours at a solid/solvent ratio of 1:3 (weight/volume). The adsorption process was conducted in batch mode using an orbital shaker at a speed of 100 rpm, with contact times ranging from 0 to 210 minutes. The initial ammonium ion concentration was 100 mg/L, and the analysis was performed using a UV-visible spectrophotometer. The results showed that ZA05 and ZA15 adsorbents achieved ammonium ion removal efficiencies of 14.62% and 12.29%, respectively. Adsorption isotherm analysis using the Langmuir and Freundlich models demonstrated a good fit with the equilibrium data, with ZA15 exhibiting a higher maximum adsorption capacity than ZA05. This study confirms the potential of KCl-modified Sarulla natural zeolite as an effective adsorbent material for wastewater treatment.
PERAN ORANG TUA DALAM MENUMBUHKAN KECERDASAN ANAK USIA DINI PERSFEKTIF SURAT AN-NAHL Yulia, Ayu; Fadhila, Fadhila
Jurnal Anak Bangsa Vol. 4 No. 1 (2025): Jurnal Anak Bangsa
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/jas.v4i1.90

Abstract

The purpose of this study was to determine the role of parents in fostering the intelligence of early childhood based on the perspective of Surat An-Nahl. The early childhood development phase that lasts from the age of 0 to 6 years, which is considered a critical period in the formation of the basics of intelligence, character, and behavior. During this age range, children have high learning potential and curiosity. This study identifies the role of parents, namely providing appropriate stimulation, being a good role model, and ensuring balanced nutrition. In addition, parents are expected to support the moral and spiritual development of children by instilling positive values and gratitude. Through this approach, it emphasizes the importance of the role of parents in children's education, so that children are not only academically intelligent, but also have good character. The role of parents in creating a generation that is not only intellectually intelligent, but also has high moral and spiritual integrity, in accordance with the values contained in Surat An-Nahl. 
Influence Of Iot-Based Problem Based Learning Model To Increase Problem Solving Abilities Physics Students Fadhila Fadhila; Aris Munandar; Abdul Haling
International Journal of Educational Development Vol. 2 No. 2 (2025): April : International Journal of Educational Development
Publisher : Asosiasi Periset Bahasa Sastra Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijed.v2i2.298

Abstract

This study aims to comprehensively examine the influence of the Problem-Based Learning (PBL) model integrated with the Internet of Things (IoT) on enhancing students’ problem-solving abilities in physics education. The integration of IoT into PBL is seen as a progressive approach to address the growing demand for innovative instructional strategies that promote higher-order thinking skills. A quantitative approach was adopted, utilizing a quasi-experimental design with a pretest-posttest nonequivalent control group format to assess the effectiveness of the intervention. The participants were 25 undergraduate physics students from the University of West Sulawesi, selected through saturated sampling due to the limited population size. To evaluate students’ problem-solving skills, data were collected using structured written tests designed around five key indicators: understanding the problem, describing the problem, planning the solution, executing the solution, and evaluating the results. Prior to hypothesis testing, normality of the data was assessed using the Kolmogorov-Smirnov test, followed by paired sample t-tests with IBM SPSS Statistics 23 to determine the significance of differences in pretest and posttest scores. The findings revealed a statistically significant improvement in students’ problem-solving skills following the implementation of the IoT-based PBL model, with results showing significance at the 5% level and gain scores classified as effective. These outcomes demonstrate the potential of the PBL-IoT integration to foster critical thinking and improve educational quality. Therefore, the implementation of this instructional model is recommended for physics educators seeking to enhance student engagement, problem-solving proficiency, and learning outcomes through the integration of emerging technologies.
Adsorpsi Ion Amonium dari Larutan Encer Menggunakan Zeolit Alam Sarulla Termodifikasi KCl Husin, Amir; Harahap, Hamidah; Ansari, Wan Rizki; Supriharti, Denny; Fadhila, Fadhila
Jurnal Teknik Kimia USU Vol. 14 No. 1 (2025): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v14i1.16240

Abstract

This study aims to evaluate the effectiveness of KCl-modified Sarulla natural zeolite in removing ammonium ions from aqueous solutions. The zeolite was modified by soaking in 0.5 M (ZA05) and 1.5 M (ZA15) KCl solutions for 24 hours at a solid/solvent ratio of 1:3 (weight/volume). The adsorption process was conducted in batch mode using an orbital shaker at a speed of 100 rpm, with contact times ranging from 0 to 210 minutes. The initial ammonium ion concentration was 100 mg/L, and the analysis was performed using a UV-visible spectrophotometer. The results showed that ZA05 and ZA15 adsorbents achieved ammonium ion removal efficiencies of 14.62% and 12.29%, respectively. Adsorption isotherm analysis using the Langmuir and Freundlich models demonstrated a good fit with the equilibrium data, with ZA15 exhibiting a higher maximum adsorption capacity than ZA05. This study confirms the potential of KCl-modified Sarulla natural zeolite as an effective adsorbent material for wastewater treatment.
Pengaruh Harga, Variasi Produk Dan Kualitas Produk Terhadap Keputusan Pembelian Keripik Singkong Saat Pandemi COVID-19 Di UKM Cap Rumah Adat Minang Medan Fadhila, Fadhila; Munte, Sirmas; Polewangi, Yudi Daeng
Jurnal Ilmiah Teknik Mesin & Industri (JITMI) Vol 1, No 1 (2022): Jurnal Ilmiah Teknik Mesin & Industri (JITMI), May
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jitmi.v1i1.1222

Abstract

Buying decisions are part of consumer behavior; consumer behavior is research on how people, groups, and organizations select, buy, use, and how goods, services, ideas, or experiences satisfy their needs and wants. The purpose of this study was to determine the effect of price, product variation, and product quality on purchasing decisions during the COVID-19 pandemic at UKM (Small Medium Enterprise) Cap Rumah Adat Minang Medan. The type of research is associative research. The populations in this study were all customers who bought cassava chips during the COVID-19 pandemic at UKM Cap Rumah Adat Minang Medan. The samples in the study were 100 consumers. The sampling technique used was non-robability sampling with an accidental sampling approach. Then, data collections methods used were questionnaires, interviews, and a literature study. The analytical method used was the multiple linear regression analysis methods which were processed with SPSS 25.0 software. The results obtained were that price, product variation, and product quality simultaneously affect the decision to buy cassava chips during the COVID-19 pandemic at UKM Cap Rumah Adat Minang Medan at age 20 with a score of 40.583 and 0.000 and age 21-25 with a score of 75.332 and 0.000. Meanwhile, price, product variation, and product quality simultaneously did not affect the decision to buy cassava chips during the COVID-19 pandemic at UKM Cap Rumah Adat Minang Medan at the age of 26-30 with a score of 0.249 and 0.000, age 30 with a score of 1.109 and 0.361, and the highest coefficient of determination was at the age of 21-25 with a score of 90.7%. Thus, price, product variety, and product quality had a very strong influence on buying decisions, the remaining 9.3% was influenced by other factors outside of this research variable.
EFL Students' Perception of Character AI as a Tool to Improve Their Writing Skills: A Qualitative Study Fadhila, Fadhila; Kembaren, Farida Repelita Waty Br.
Nusantara: Jurnal Pendidikan Indonesia Vol. 5 No. 2 (2025)
Publisher : Lembaga Sosial Rumah Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62491/njpi.2025.v5i2-4

Abstract

Purpose – This article aims to explain students' perspectives toward Character AI and how Character AI helps them develop their writing skills and confidence in writing.Method – This article employs a qualitative case study to gather data through questionnaires and interviews, aiming to understand the respondents' perspectives on the application. Findings – The participants concluded that Character AI aids in writing skills by helping them learn new sentences, improve grammar, and understand context, ultimately boosting self-confidence. Survey results show that 33.3% found Character AI significantly contributed to their English sentence acquisition, while 66.7% experienced some linguistic benefits. In terms of grammatical improvement, 33.3% rated it highly effective, 44.4% noted moderate efficacy, and 22.2% reported minimal enhancement. Regarding writing confidence, 33.3% experienced a significant decline, 55.6% a moderate decrease, and 11.1% a marginal drop. Research Implications – This study highlights the potential of artificial intelligence in education, particularly in enhancing students' writing skills. Through questionnaires and interviews, it was found that character AI significantly impacts students' ability to learn new sentences, correct grammar, and understand context, while also boosting their confidence in writing. The research utilized a quantitative methodology with a larger participant group to validate these findings. However, further studies are necessary to explore the real effects of character AI on students' writing, as this technology is still new to them.
PKM WORKSHOP TINKERCAD: MENGHIDUPKAN SAINS DENGAN SIMULASI INTERAKTIF BAGI PESERTA DIDIK MTS DDI LAPEO Agung, Afiq; Saddia, Andi; Fadhila, Fadhila
Jurnal Pengabdian Kepada Masyarakat Patikala Vol. 4 No. 4 (2025): Jurnal PkM PATIKALA
Publisher : Education and Talent Development Center of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/patikala.v4i4.3272

Abstract

The results of observations and interviews conducted at MTs DDI Lapeo showed that learning at the school was still dominated by one-way lecture methods and was less interactive. The strategies commonly used by teachers did not support the needs of practical-based science, so that students still had few opportunities to interact with learning objects. This community service aims to increase students' interest in science at MTs DDI Lapeo with the help of an interactive simulation called Tinkercad. The implementation method consists of three main stages: preparation, implementation, and evaluation. The preparation stage involves initial observation, document collection, FGD, and team briefing. In the implementation stage, participants were trained to foster interest in science with interactive simulations by raising their learning materials in class. The results of the questionnaire showed that the paper-making workshop received a very positive response, especially from aspects related to the material, and student respondents agreed that this activity actively involved them and greatly increased their interest. The training was considered interactive, not boring, and able to create interesting conditions for participants. No less importantly, this activity gave them satisfaction while participating in the activity.
Analisis Status Mutu Air di Danau Toba Menggunakan Metode STORET: Studi Kasus Keramba Jaring Apung di Desa Tongging Hidayati, Hidayati; Zulfa Hanie, Meidina; Heickel Kenza Ginting, Kevin; Fadhila, Fadhila; Ashari Syawal, Ferdy
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9592

Abstract

Lake Toba as the largest volcanic lake in Southeast Asia faces a serious threat in the form of water pollution due to the activities of Floating Net Cages (KJA). This study aims to evaluate the status of water quality in the waters of Lake Toba, especially in Tongging Village, Karo Regency. The evaluation was carried out using the STORET method approach. Water samples were taken at three different time conditions (before, during, and after feeding) at five strategic points representing KJA, around KJA, and river inlets. The results showed that the concentrations of phosphate and nitrate had exceeded the quality standards of PP No. 22 of 2021, reaching 0.072 mg/L and 9.950 mg/L, respectively. The highest STORET method score was -35, indicating severely polluted water conditions. These findings emphasize the need for sustainable fisheries management in Lake Toba.
Analisis Kemampuan Pemecahan Masalah Mahasiswa Fisika Semester Menengah dalam Mata Kuliah Fisika Inti Fadhila, Fadhila; Yunus, Ayyub; Saz, Jushadi Arman
Journal of Health, Education, Economics, Science, and Technology Vol. 7 No. 2 (2025): Journal of Health, Education, Economics, Science, and Technology
Publisher : Journal of Health, Education, Economics, Science, and Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36339/

Abstract

Problem-solving ability is a key competence in physics education; however, many physics education students still struggle to apply scientific thinking processes systematically, particularly in the Nuclear Physics course. This study aims to analyze the problem-solving abilities of mid-level physics education students based on the stages of Polya's model. A descriptive quantitative approach was employed, involving two classes of fifth-semester students at the University of West Sulawesi. Data were collected through validated open-ended problem-solving tests and analyzed using descriptive techniques. The results show that 67% of students encountered difficulties in understanding the problem, 83% struggled with planning and executing solutions, and all students (100%) faced obstacles in reviewing their solutions. These findings indicate weak reflective and strategic thinking skills among students and highlight the need for the explicit integration of problem-solving models in instruction. The implications emphasize the importance of designing learning experiences that focus not only on final outcomes but also on fostering scientific thinking processes to prepare students as competent future physics educators..  
IDENTIFYING COMMON CONTRASTIVE ERRORS IN ENGLISH GRAMMAR MADE BY INDONESIAN EFL LEARNERS: CAUSES AND SOLUTION Sabrina, Azra Batrisyia; Sitanggang, Cansa Namira; Salmanda, Dandi; Fadhila, Fadhila; Fadlan, Fadlan; Mashalan, Fahima; Purba, Kezia Nur Elizanti; Khairunnisa, Khairunnisa; Fitria, Lailatul; Fadhila, Nurul; Batubara, Putri Fadila; Aulia, Sirrul; Ismahani, Siti
Jurnal Review Pendidikan dan Pengajaran Vol. 8 No. 1 (2025): Volume 8 No. 1 Tahun 2025
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jrpp.v8i1.40288

Abstract

This study identifies common contrastive errors in English grammar made by Indonesian EFL learners, along with their causes and solutions. Such errors often arise from structural differences between the learner's first language (L1) and English (L2), potentially leading to misunderstandings. Using a descriptive qualitative research design, data were collected from eleven undergraduate students in the English Education program at Universitas Islam Negeri Sumatera Utara. Data collection methods included grammar tests and surveys to explore the underlying causes of errors. Analysis revealed that common errors included tense usage, subject-verb agreement, article usage, and preposition errors. These mistakes are attributed to language transfer, interlanguage phenomena, and a lack of understanding of English structures. The study recommends teaching strategies such as drilling activities, corrective feedback, context-based learning, and comparative grammar analysis to mitigate these errors. By implementing these approaches, it is hoped that learners will enhance their understanding and application of English grammar more effectively, ultimately improving their communication skills in English.