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All Journal International Journal of Science and Applied Science: Conference Series Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia JURNAL MUTIARA MANAJEMEN Jurnal Absis : Jurnal Pendidikan Matematika dan Matematika Indonesian Review of Physics (IRiP) Edudikara: Jurnal Pendidikan dan Pembelajaran Jejak digital: Jurnal Ilmiah Multidisiplin Jurnal Pendidikan Fisika Indonesia Jurnal Sains dan Teknologi
Aprilia, Ananda
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Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Pengaruh Budaya Belajar terhadap Self-Efficacy Siswa Cerdas Istimewa di Sekolah Menengah Atas Aprilia, Ananda; Masyithoh, Siti; SAM, Mu'arif
Edudikara: Jurnal Pendidikan dan Pembelajaran Vol 6 No 3 (2021): September
Publisher : IPTPI Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/edudikara.v6i3.258

Abstract

Penelitian ini bertujuan untuk mengumpulkan data empiris tentang pengaruh budaya belajar terhadap self-efficacy siswa cerdas istimewa di SMAN 78 Jakarta. Penelitian ini menggunakan metode kuantitatif dengan analisis regresi linear sederhana dan pengambilan sampel berdasarkan teknik simple random sampling dengan penentuan jumlah sampel yang dikembangkan oleh Isaac dan Michael. Data dikumpulkan menggunakan angket, wawancara, dan studi dokumentasi. Berdasarkan pengolahan data SPSS Ver.22, hasil pengujian korelasi (uji-r) menunjukkan rhitung bernilai positif sebesar 0,829 > rtabel sebesar 0,304 dengan signifikansi sebesar 0,000 < 0,05, maka terdapat hubungan yang signifikan antara budaya belajar terhadap self-efficacy siswa cerdas istimewa dalam tingkatan sangat kuat dan searah. Hasil perhitungan regresi linear sederhana menghasilkan koefisien regresi sebesar 0,845 yang diinterpretasikan budaya belajar berpengaruh positif terhadap self-efficacy siswa cerdas istimewa. Pada perhitungan koefisien determinasi diketahui pengaruh budaya belajar terhadap self-efficacy siswa cerdas istimewa sebesar 68,6%, sementara sisanya 31,4% dipengaruhi oleh faktor lain yang tidak diteliti. Dapat disimpulkan budaya belajar berpengaruh positif sebesar 68,6% terhadap self-efficacy siswa cerdas istimewa. Semakin baik budaya belajar siswa cerdas istimewa maka akan semakin tinggi self-efficacynya.
A Study of Tracker Software-assisted Spring Coupled Pendulum Oscillation Aprilia, Ananda; Dwandaru, Wipsar Sunu Brams
Indonesian Review of Physics Vol. 6 No. 2 (2023)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v6i2.7423

Abstract

Oscillatory motions are an essential part of our physical world. These motions need to be studied and learned by students. However, complicated oscillatory motions, e.g.: spring coupled pendulum, are rarely taught to students because their analytical solutions (if they exist) are complicated Here, we use the Tracker software to bridge between the actual coupled pendulum oscillation and its analytical solution. This study aimed to determine the period and frequency of Tracker software-assisted spring coupled pendulum oscillations. The displacement of the pendulum is divided into in-phase and out-of-phase motions. Data collection was carried out by recording the oscillatory motions up to 10 oscillations. The data were obtained from the pendulum position with respect to time. The data analysis techniques in this study used two methods, namely: i) Tracker software and ii) analytical calculations. The results showed that the period and frequency obtained via the Tracker software were in accordance with the analytical calculations. The periods of the in-phase motion and analytical calculation were 1.42 s and 1.54 s, respectively. The periods of the out-of-phase motions and analytical calculation were 0.7 s and 0.55 s, respectively. The frequencies of the in-phase motion and analytical calculation were 0.70 Hz and 0.65 Hz, respectively. The frequencies of the out-of-phase motions and analytical calculation were 1.50 Hz and 1.83 Hz, respectively. The uncertainty values of the results were 7% to 22%. Hence, the spring coupled pendulum oscillations became tractable and can be compared to the analytical solution.
PENGARUH LINGKUNGAN KERJA DAN EFIKASI DIRI TERHADAP KINERJA PEGAWAI PADA KANTOR DINAS PENDIDIKAN DELI SERDANG Aprilia, Ananda; Lubis, Anggia Sari
JURNAL MUTIARA MANAJEMEN Vol 6 No 1 (2021): Jurnal Mutiara Manajemen
Publisher : UNIVERSITAS SARI MUTIARA INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/jmm.v6i1.2121

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh lingkungan kerja dan efikasi diri terhadap kinerja pegawai pada Kantor Dinas Pendidikan Deli Serdang. Teknik pengambilan sampel menggunakan sampel jenuh berjumlah 76 orang. Metode pengumpulan data menggunakan kuesioner. Dari persamaan regresi Y = 5,550 + 0,452X1 + 0,715X2 + e. Pada uji hipotesis parsial (Uji t) variabel lingkungan kerja berpengaruh positif dan signifikan terhadap kinerja pegawai dengan nilai t hitung > t tabel (6,536 > 1,665) dan nilai signifikan 0,000 < 0,05 dan efikasi diri berpengaruh positif dan signifikan terhadap kinerja pegawai dengan nilai t hitung > t tabel (8,190 > 1,665) dan nilai signifikan 0,000 < 0,05. Hasil uji hipotesis secara simultan (Uji F) variabel lingkungan kerja dan efikasi diri berpengaruh positif dan signifikan terhadap kinerja pegawai dengan nilai F hitung > F tabel (74,620 > 3,12) dan nilai signifikan 0,000 < 0,05. Hasil uji determinasi diperoleh nilai R Square sebesar 0,672, artinya variabel kinerja pegawai dapat dijelaskan sebesar 67,2% oleh lingkungan kerja dan efikasi diri, sementara sisanya 32,8% dijelaskan oleh variabel lain yang tidak dimasukkan dalam penelitian ini.
Evaluation of the performance of TBATS and SARIMA methods in forecasting air temperature in Indonesia Aprilia, Ananda; Wijaya, Madona Yunita; Zulkifli, Dhea Urfina
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 8 No. 2 (2025): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v8i2.3052

Abstract

Indonesia is a tropical archipelago located along the equator, where air temperature patterns exhibit seasonal trends and unstable fluctuations. This instability can impact several sectors, including agriculture—making it difficult for farmers to determine planting and harvesting times—electricity demand, which increases during hotter periods, and public health, as erratic weather may reduce productivity and elevate the risk of diseases such as dehydration, asthma, and respiratory infections. This study aims to evaluate the performance of the Trigonometric, Box-Cox Transformation, ARMA Errors, Trend, and Seasonal (TBATS) model and the Seasonal Autoregressive Integrated Moving Average (SARIMA) model in forecasting air temperature in Indonesia. The dataset used comprises 2-meter air temperature records in Indonesia from January 1940 to August 2024, obtained from ECMWF. The evaluation method applied is cross-validation with a rolling basis. The results show that the RMSE for the TBATS model is 21.3843%, while the SARIMA model has an RMSE of 21.2958%. These results indicate that SARIMA has a slightly better performance than TBATS. However, both methods perform well in forecasting air temperature in Indonesia, as their RMSE percentages are within an acceptable range. This research is expected to contribute to the scientific literature on air temperature forecasting in Indonesia and encourage further studies on hybrid models that integrate TBATS and SARIMA. Additionally, it may support efforts to mitigate the adverse impacts of air temperature changes in the country.
Tracker Software Assisted Guided Inquiry Learning Model to Improve High School Students' Graphical Representation Ability Aprilia, Ananda; Wijayanti, Pipit; Wilujeng, Insih; Aryono, Ichwan; Dwandaru, Wipsar
Jurnal Pendidikan Fisika Indonesia Vol. 21 No. 1 (2025)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v21i1.3364

Abstract

This research aimed to improve students' graphical representation using the guided inquiry learning model assisted by the Tracker software. The method used in this research was a pre-experimental study with a one-group pretest-posttest design. The data collection techniques used were observation, interview, and tests. The sample for this research was students of science class X at Public Senior High School. The analysis techniques were carried out using Wilcoxon and N-Gain test calculations. The results of the research showed that the Wilcoxon test produced a significance, which means that there were differences in the guided inquiry learning model assisted by Tracker software to improve the graphical representation abilities of high school students on the Work and Energy topic. The N-Gain test indicated that more than half of the students achieved a high category, while only a small number obtained the low category. Moreover, the N-Gain results for the two-question item indicators showed that most students were in the medium and high categories. Thus, students' graphical representation abilities can be improved using the guided inquiry learning model assisted by the Tracker software.
Analisis Kelayakan Bisnis Muka Bumi Coffe House di Bandung Timur: Pendekatan Aspek Pasar, Operasional, Manajemen, dan Finansial Fega, Amelia; Khairi, Ahmad; Nazmi, Alfathir Hilal; Sawalni, Sawalni; Firdaus, Alvin; Aprilia, Ananda; Mubarok, Adam Rizqi
Jejak digital: Jurnal Ilmiah Multidisiplin Vol. 2 No. 2 (2026): MARET 2026
Publisher : INDO PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63822/74ymhn51

Abstract

This study aims to evaluate the business feasibility of Muka Bumi Coffee House as a café business operating in East Bandung. The analysis applies a business feasibility study approach covering market and marketing aspects, operational and technical aspects, management and human resource aspects, legal, social and environmental aspects, as well as financial aspects. The research employs a descriptive method with both quantitative and qualitative approaches, utilizing primary data obtained through interviews and direct observations, along with secondary data related to revenue, operational costs, and initial investment. The financial feasibility analysis is conducted using Break Even Point (BEP), Payback Period (PP), and Accounting Rate of Return (ARR) methods. In addition, sensitivity analysis and SWOT analysis are applied to assess the business resilience against changes in sales volume and operational costs, as well as to determine its strategic position in the competitive café industry. The findings indicate that Muka Bumi Coffee House has promising market potential with relatively stable demand, supported by effective operational management and structured business organization. From a financial perspective, the business generates consistent net profit, operates above the break-even point, and demonstrates a relatively short capital recovery period. Overall, the results suggest that Muka Bumi Coffee House is financially and operationally feasible and has sustainable development prospects within the competitive coffee shop industry.
Pembuatan Kolom Adsorber untuk Pemurnian Gas H2S pada Produksi Biogas Ampas Tebu Aprilia, Ananda; Hasnah Ulia; Khairul Akli; Tasya Aqilah Cantifa
Jurnal Sains dan Teknologi Vol. 1 No. 3 (2026): Edisi: April-Juni
Publisher : Pustaka Bangsa Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan memanfaatkan limbah ampas tebu sebagai biosorben untuk mengadsorpsi gas H₂S dalam biogas. Karbon aktif dibuat dari ampas tebu dan diaktivasi menggunakan NaOH dan KOH dengan ukuran partikel 40 dan 100 mesh, kemudian diuji pada kolom kontinu. Konsentrasi H₂S diukur menggunakan detektor gas. Hasil penelitian menunjukkan bahwa model kinetika Pseudo-First Order merupakan model yang paling sesuai dengan nilai R² sebesar 0,9734. Proses adsorpsi mencapai efisiensi hingga 100% dalam waktu 15 menit pada kondisi pengisian penuh. Nilai kapasitas adsorpsi tertinggi (qe) sebesar 6,4×10⁻⁴ mg/g diperoleh pada karbon aktif aktivasi KOH ukuran 100 mesh. Temuan ini menunjukkan bahwa ampas tebu berpotensi sebagai biosorben yang murah, efektif, dan ramah lingkungan untuk pemurnian biogas.
The Effect of Adding MTMS (Methyl-trimethoxysilane) as a Pore Former on the Absorption of Hydrogels Based on NACMC (Sodium Carboximethyl Cellulose) Anggraini, Dwi; Susmanto, Prahady; Aprilia, Ananda; Damayanti, Delfiana Triaprilia
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 11, No 1 (2026): EDISI MARET 2026
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v11i1.7643

Abstract

Superabsorbent hydrogels (SAHs) possess the remarkable ability to absorb and retain large amounts of water, making them promising eco-friendly materials for various applications. In this study, sodium carboxymethyl cellulose (NaCMC) was employed as the main polymer, modified with polyvinyl alcohol (PVA) to enhance structural stability through hydrogen bonding, and crosslinked with methyltrimethoxysilane (MTMS) to generate water-retaining porous networks. The effects of varying PVA and MTMS concentrations on the absorption capacity and chemical structure of the hydrogels were systematically investigated. The results demonstrated that the formulation containing 3 g of PVA and 4.71 mL of MTMS (B3) exhibited the highest absorption capacity of 453%, indicating optimal performance. These findings highlight the potential of NaCMC-based hydrogels as sustainable superabsorbent materials with promising applications in agriculture, water management, and biomedical fields.
Profile of Doctoral Student’s Motivation in Science Education Program: A Mini Research Ilma, Arina Zaida; Aprilia, Ananda; Purbowati, Dwi; Susdarwati, Susdarwati; Anjarsari, Putri; Wibowo, Widodo Setiyo; Bastian, Norma; Utami, Rita Bekti
International Journal of Science and Applied Science: Conference Series Vol 8, No 1 (2024): International Journal of Science and Applied Science: Conference Series
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/ijsascs.v8i1.106959

Abstract

The evolving landscape of higher education and its potential implications for the careers of doctoral graduates is growing. This research aims to analyze the motivation profiles of doctoral students in a Science Education program. Survey data was collected from students enrolled in the Science Education Doctoral Program at Universitas Negeri Yogyakarta in the 2024/2025 academic year. Ten question surveys with qualitative open-ended questions were developed in this research. Findings highlight intrinsic, integrated, and identified motivational factors and their potential implications for educational practices in doctoral programs in science education. The recommendations provided institutions to design more effective support strategies to ensure the academic success and contribution of doctoral students to the advancement of science education in Indonesia.
Co-Authors Anggia Sari Lubis, Anggia Sari Aryono, Ichwan Bastian, Norma Damayanti, Delfiana Triaprilia Dhea Urfina Zulkifli Dwandaru, Wipsar Dwi Anggraini Dwi Purbowati Fega, Amelia Firdaus, Alvin Hasnah Ulia Ilma, Arina Zaida Insih Wilujeng Khairi, Ahmad Khairul Akli Mubarok, Adam Rizqi Nazmi, Alfathir Hilal Putri Anjarsari Rita Bekti Utami SAM, Mu'arif Sawalni, Sawalni Siti Masyithoh, Siti Susdarwati, Susdarwati Susmanto, Prahady Tasya Aqilah Cantifa Wibowo, Widodo Setiyo Wijaya, Madona Yunita Wijayanti, Pipit Wipsar Sunu Brams Dwandaru