Development of Mathematics Learning Devices with GDL Models to Improve Mathematical Problem-Solving Ability of Class VII Junior High School
(Latifa Efni, Yerizon Yerizon, Elita Zusti Jamaan)
DOI : 10.55606/jubpi.v2i4.3247
- Volume: 2,
Issue: 4,
Sitasi : 0 05-Aug-2024
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| Last.13-Aug-2025
Abstrak:
This research aims to produce mathematics learning tools with the Guided Discovery Learning (GDL) Model which is Valid, practical, and effective to improve the mathematical problem-solving abilities of students in class VII SMP/MTsN. The Plomp model is used because it is more flexible than Plomp's other models; beside that, at each step, it contains activities development that can be adapted to the characteristics of the research. Instruments were used during the study in the form of observation sheets, interview guidelines, questionnaires, validation sheets, learning tools, and tests of mathematical problem-solving skills learners. The results of the validity test show that the GDL-based mathematics learning tool is declared valid according to the experts. The results of the practicality test show that GDL-based mathematics learning tools are practical based on teachers and students as users. The effectiveness test results show that students' learning outcomes after learning are better by showing the percentage of completeness that reaches 75.86% exceeding the specified effectiveness limit of 70%. In addition, the device is said to be effective; it can be seen from the activities of students during the learning process that it has increased. Based on the validity, practicality, and effectiveness tests, the mathematics learning tools based on GDL in the Association material for Class VII Junior High School students are valid, practical, and effective
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2024 |
Analysis of the Influence of Abnormal Accrual, Internal Control System, and Audit Findings on the Quality of Government Financial Reports
(Chyntia Dwi Putri, Rindu Rika Gamayuni, Fajar Gustiawaty Dewi, Kamadie Sumanda Syafis)
DOI : 10.61132/ijems.v1i3.170
- Volume: 1,
Issue: 3,
Sitasi : 0 05-Aug-2024
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| Last.07-Aug-2025
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This study aims to exmine the influence of abnormal accrual, internal control system, and audit findings on the quality of financial reports of district/city goverments in Indonesia. The sampel that used in this study was local goverments in Indonesia at the district/city level in 2020-2022, with the sampel amounted to 1,518 sampels. The sampel selection is using purposive sampling technique and proceed using multinomial logistic regression analysis. The result of this study indicate that abnormal accrual do not affect the quality of local government financial reports. Then internal control system has a positive effect on the quality of local government financial reports. And audit finding has a negative effect on the quality of local government financial reports.
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2024 |
Making A Multi Purpose Liquid (Eco-Enzyme) as An Alternative for Prosesing Household Organic Waste and Reviewing Its Benefits
(Daffa Ulwan Nafilah, Fera Rahmawati, Mohamad Tafrikan, Nur Khasanah)
DOI : 10.26623/jpk.v2i2.9832
- Volume: 2,
Issue: 2,
Sitasi : 0 04-Aug-2024
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| Last.09-Jul-2025
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<p><em>This activity was conducted to increase public awareness and knowledge in managing household organic waste into eco-enzymes. Eco-enzyme is a natural liquid from the fermentation process of organic kitchen waste such as fruit and vegetable peels, granulated sugar (white sugar, brown sugar, or cane sugar), and water. The training activity was held at the home of the head of Gentan Hamlet, Doplang Village, Bawen Subdistrict, Semarang Regency on Wednesday, October 25, 2023, with the training participants being women members of Dasawisma (Dawis). The activity was carried out using socialization and demonstration methods to facilitate participants' understanding of the material and the process of making eco-enzymes. Based on the evaluation results, the participants were very enthusiastic about learning new knowledge they did not know before. Participants learned about the technology of making eco-enzymes from household waste. In addition to creating a clean environment, the resulting eco-enzyme also provides various benefits for life.</em></p>
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2024 |
Analisis Keuntungan Usaha Pisang Ijo sebagai Diversifikasi Pangan Olahan Pisang Manis di Kabupaten Konawe
(Novita Ramadani, Muhammad Adwan)
DOI : 10.62951/botani.v1i3.93
- Volume: 1,
Issue: 3,
Sitasi : 0 03-Aug-2024
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| Last.13-Aug-2025
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This study aims to determine the costs, revenues, and profits of Mr. Ashar's Es Pisang Ijo business in Unaaha City. Analysis of the Es Pisang Ijo business is important for producers to know the state of the business, especially from the financial side, so that it can be used as a contribution of thought, evaluation material, and consideration in making decisions related to the progress of Mr. Ashar's Es Pisang Ijo business. This study uses a case study research type. Data collection techniques Data collection techniques used are: Primary data and secondary data. Sampling technique The withdrawal of respondents in this study was carried out purposively or intentionally, at Mr. Ashar's Es Pisang Ijo Culinary business in Unaaha City, Konawe Regency. The total cost of Mr. Ashar's Es Iisang Ijo Business in one production process with raw materials of 4 combs of sweet bananas produces an output of 65 cups of Es Pisang Ijo in one production process, with a total cost of Rp. 421,500.00 and the income obtained in one production process is Rp 975,000.00, thus obtaining a profit of Rp 553,500.00. The R/C value produced by Mr. Ashar's Es Pisang Ijo business is 1.76.
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2024 |
Evaluasi Efektivitas Kinerja Instalasi Pengolahan Air Limbah (IPAL) di Kota Surakarta
(Rizky Nugraha Ramadhan, Budi Utomo, Solichin Solichin, Cahyono Ikhsan, Koosdaryani Soeryodarundio)
DOI : 10.58192/ocean.v3i3.2421
- Volume: 3,
Issue: 3,
Sitasi : 0 02-Aug-2024
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| Last.07-Jul-2025
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Household sewage treatment in Surakarta City depends on the performance of the available domestic wastewater treatment plants (IPAL), including Pucangsawit IPAL, Semanggi IPAL, Mojosongo IPAL, and UNS IPAL. Each of these IPAL’s serves a specific area, such as the UNS IPAL which serves the UNS area and its surroundings, the Mojosongo IPAL which is in charge of the North Area of Surakarta, the Semanggi IPAL which takes care of the South Area of Surakarta, and the Pucangsawit IPAL which serves the Central Area of Surakarta City. This research aimed at the effectiveness of the performance and development plan of each IPAL in the next 20 years. This research used descriptive qualitative and quantitative analysis methods. Qualitative descriptive analysis was conducted by observing the existing condition of IPAL Komunal in the research location. Quantitative descriptive analysis in this study was carried out by testing samples at the inlet, aeration, and outlet points of the IPAL. Based on the quality standards of the Minister of Environment and Forestry Regulation number P 68 of 2016, each IPAL. UNS IPAL is 47.27% for BOD, 73.81% for COD, 76.36% for TSS. Mojosongo IPAL is 88.71% for BOD, 76.50% for COD, 78.57% for TSS. Pucangsawit IPAL was 91.88% for BOD, 83.20% for COD, 74.82% for TSS. Semanggi IPAL is 20.45% for BOD, 69.95% for COD, 69.05% for TSS. Alternative development at the IPAL that can be done to prepare for the next 20 years is to increase the volume in the initial settling basin, aerobic biofilter basin, and also the final settling basin.
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2024 |
Pengembangan Materi Ajar Pendidikan Islam Bernuansa Adat Basandi Syara’, Syara’ Basandi Kitabullah Bagi Narapidana di Rutan Kota Padang Panjang
(Hubban Jamma, Duski Samad, Muhammad Zalnur)
DOI : 10.58192/sidu.v3i3.2424
- Volume: 3,
Issue: 3,
Sitasi : 0 02-Aug-2024
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| Last.07-Jul-2025
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A prisoner is someone who is serving a sentence in a detention center. This research aims to: 1) describe Islamic Education teaching materials in the Padang Panjang City State Detention Center. 2) Developing Islamic Education Teaching Materials with the nuances of Adat Basandi Syara', Syara' Basandi Kitabullah (ABS SBK). 3) Revealing the validity, practicality and effectiveness of the development of Islamic Education Teaching Materials with the nuances of Adat Basandi Syara', Syara' Basandi Kitabullah (ABS SBK). This research is a development research or Research and Development (R&D) with research steps referring to the 4-D development model. The findings in this study are: 1) Islamic Education Teaching Materials at the Padang Panjang City State Detention Center have not been properly arranged in accordance with teaching material components such as a) KI and KD analysis, b) Material Title and Indicators and Objectives, c) Material Outline, d) References, and e) Illustrations of Images, Tables, Diagrams. 2) Based on experiments, Islamic Education Teaching Materials with the nuances of Adat Basandi Syara', Syara' Basandi Kitabullah (ABS SBK) can be applied in all Islamic Education teaching materials. 3) The validity, practicality and effectiveness tests show that the Islamic Education Teaching Materials with the nuances of Adat Basandi Syara', Syara' Basandi Kitabullah (ABS SBK) are very valid, practical and effective.
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2024 |
Pemodelan Molekul untuk Pengaplikasian Senyawa Anti-UV dari Senyawa Kuersetin Menggunakan Pendekatan Semi Empiris
(Lidya Tesalonika, Tety Wahyuningsih Manurung, Mokhamat Ariefin)
DOI : 10.24246/juses.v7i2p128-135
- Volume: 7,
Issue: 2,
Sitasi : 0 02-Aug-2024
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| Last.07-Jul-2025
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Sinar UV merupakan salah satu gelombang elektromagnetik yang dipancarkan oleh matahari. Paparan sinar ultraviolet berlebih dapat menyebabkan dampak buruk bagi kulit, terlebih UV A dan UV B yang memiliki kecenderungan lebih tinggi untuk menyebabkan kerusakan pada kulit. Kuersetin merupakan salah satu senyawa golongan flavonoid yang dapat mengalami modifikasi pada struktur cincin benzenanya membentuk beberapa senyawa turunan kuersetin. Modifikasi struktur cincin benzena kuersetin memberikan pengaruh pada kemampuan kuersetin dalam menyerap sinar UV. Pada penelitian ini dilakukan permodelan struktur dan spektra UV pada tiga senyawa turunan kuersetin melalui metode semi empiris untuk mengetahui sifat dan efektivitas turunan kuersetin sebagai senyawa pelindung radiasi ultraviolet (UV). Studi komputasi yang dilakukan menggunakan Austin Model 1 (AM1) yang dapat memprediksi absorbtivitas UV pada senyawa. Hasil penelitian yang telah dilakukan menunjukkan bahwa modifikasi senyawa kuersetin dengan gugus alkil (metil) pada senyawa 1, 2, dan 3 berpengaruh terhadap panjang ikatan, sudut dehedral, dan energi gap HOMO LUMO 3 senyawa turunan kuersetin tersebut. Data spektrum UV yang dihasilkan melalui pemodelan transisi elektron menunjukkan bahwa ketiga senyawa turunan kuersetin memiliki puncak absorpsi yang terletak pada wilayah UV-A. Ketiga senyawa turunan kuersetin tersebut memiliki potensi sebagai pelindung dari sinar UV-A.
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2024 |
Model Penduga Kadar Glukosa dalam Jus Buah Menggunakan Spektroskopi Inframerah-dekat dan Regresi Kuadrat Terkecil Parsial
(Dina N Samalukang, Ferdy Semuel Rondonuwu, Indri D Pratiwi, Adita Sutresno)
DOI : 10.24246/juses.v7i2p74-80
- Volume: 7,
Issue: 2,
Sitasi : 0 02-Aug-2024
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| Last.07-Jul-2025
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Glukosa merupakan gula alami yang terdapat dalam buah segar dan memainkan peran penting pada rasa dan derajat kemanisan jus buah tersebut. Mengetahui kadar glukosa dalam jus buah murni berguna untuk pengendalian kualitas dan pelabelan gizi serta memastikan bahwa konsumen mendapatkan produk yang mereka harapkan. Paper ini membahas teknik pendugaan kadar kandungan glucosa jus buah menggunakan spektroskopi inframerah dekat (Near-Infrared Spectroscopy, NIRS) dan metode Regresi Kuadrat Terkecil Parsial (Partial Least Square Regression, PLSR). Sebanyak 14 sample glukosa-akuades dengan konsentrasi antara 0 – 2500 mg/dL digunakan sebagai sumber data spektral pembangun model regresi sedangkan sampel jus dari 10 jenis buah digunakan sebagai sumber data spektral target penentuan kadar glukosa berdasarkan model yang dibangun. Seluruh data spektral dianalisis pada daerah bilangan gelombang 4200 – 4800 cm-1. Pra-perlakuan data meliputi smoothing, normalisasi, turunan pertama, dan turunan kedua diterapkan pada masing-masing spektrum. Penggunaan variabel laten sebanyak 4 menghasilkan PRESS (Predicted Residual Error Sum Of Square) terkecil atau hasil prediksi yang optimal. Model prediksi yang dihasilkan mampu menentukan kadar glukosa dengan nilai RMSE 3 mg/dL pada data kalibrasi dan dapat menentukan kadar glukosa jus buah tertinggi yaitu 713 mg/dL pada tebu dan kadar glukosa terendah yaitu 247 mg/dL pada kelapa.
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2024 |
Phytochemical Investigation and GC-MS analysis of Tribulus terrestris L. cultivated in Iraq
(Amani Amer Tawfeeq, Tahany Amir Tawfeeq, Zahraa A.E Al Naqqash, ZIinah Alaa Kamal)
DOI : 10.61132/obat.v2i5.594
- Volume: 2,
Issue: 5,
Sitasi : 0 02-Aug-2024
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| Last.07-Aug-2025
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Tribulus terrestris L.,Gokshur in Sanskt, is an annual herbaceous, little prostrate, silky from the Zygophyllaceae family. It is found in extensive, arid, and scorching regions of India. is used in traditional folk medicines as an aphrodisiac, astringent, lithotriptic, diuretic, and urinary disinfectant. however, uneven, pinnae, elliptical leaves. Sprinkled, round, compressed, five-cornered, transverse partitioned carpel fruits with many seeds ripen in July. Pieces of the cylindrical-fibrous root are 7-18 cm and 0.3-0.7 cm wide. According to reported studies, the investigations indicated the presence of the saponins ;gitogenin, tigogenin, neogitogenin, hecogenin, and flavonoid tribuloside was kaempferol-3-glucoside. Furthermore, Tribulus terrestris plays a vital role in hepatotoxicity and is greatly reduced by Tribulus extracts. Similarly, T.terrestris plays a remarkable role in reducing the elevated level of serum glucose, triglycerides, VLDL, and cholesterol. This study aims to conduct a preliminary analysis of the phytochemicals of Tribulus leaves cultivated in Iraq and to determine the active constituent of the ethanolic extract of the leaves using Gc-Mass. Qualitative detection of herbal leaves in Iraqi soil, investigated by GC-MASS revealed important constituents. The funding shows a new compound; dihydrocoumarin and other major constituents neophytadiene and alpha-tocopherol.
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2024 |
Mendambakan Kecantikan Ideal Sebagai Penindasan: Analisis Resepsi Iklan ImPerfect Beauty Elshe Skin
(Rochmad Effendy, Meirina Aulia Damayanti, Sri Widayati, Lian Agustina Setiyaningsih)
DOI : 10.33366/jkn.v6i1.471
- Volume: 6,
Issue: 1,
Sitasi : 0 02-Aug-2024
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| Last.07-Oct-2025
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Involving down syndrome model, Imperfect Beauty ad is called pro-women's advertising. Reception analysis was carried out by employing critical perspective aimed at not only finding dominant meaning, negotiation and opposition but also trying to build audience’s agency to involve them in forming participatory culture. Through interview, focus group discussions and literature searches methods with informants who have backgrounds as student organization activists and are familiar with the entertainment and fashion development, this research found informants who rejected this pro-women advertisement; feelings of psychological insecurity, low self-esteem since they cannot meet ideal beauty standards which leads to self-oppression. Poor media representation of women which prioritizes their physical bodies over their political power leads to symbolic annihilation. Beautifying oneself has become a national and global political matter involving producers, the state and the media. Media naturalized beauty myths as if it were innocent and natural.
Abstrak
Dilihat dari tajuk dan pelibatan model penyandang down syndrome, reklame Imperfect Beauty merupakan iklan pemberdayaan perempuan. Analisis resepsi terhadap iklan ini dilakukan dengan menerapkan perspektif kritis yang diarahkan tidak hanya menemukan pemaknaan dominan, negosiasi dan oposisi tapi berusaha membangun agensi khalayak demi melibatkan mereka dalam membentuk budaya popular partisipatif. Lewat metode wawancara, diskusi kelompok terarah serta penelurusan pustaka dengan informan berlatarbelakang pegiat organisasi kemahasiswaan dan akrab dengan dunia entertainment dan fashion model, penelitian ini menemukan informan yang menolak iklan pro-perempuan ini (makna oposisi). Mereka merasakan ketidaknyamanan aman psikologis, harga diri yang rendah karena tidak bisa memenuhi standar kecantikan ideal. Dampaknya, mereka menindas diri. Representasi wanita di media yang lebih mengedepankan tubuh fisik daripada kekuatan sosial politiknya dapat mengarah kepada pemusnahan simbolik. Mempercantik diri menjadi masalah politik nasional dan global yang melibatkan produsen, negara dan media. Mitos kecantikan ciptaan industri oleh media dinaturalisasi; seolah alami dan memang demikian seharusnya.
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2024 |