Abstract:Calculus of Multiple Variables is a core course in the Mathematics Education study program and plays a crucial role in developing students advanced mathematical thinking skills. Success in this course relies heavily on mastery…
astery of the prerequisite material, particularly the concepts of derivatives and integrals of functions of one variable. Therefore, understanding mathematical concepts is a fundamental aspect that determines students’ ability to understand the interrelationships between topics and solve problems systematically and logically. This study aims to describe students' conceptual understanding of multivariable calculus. The approach used is a descriptive approach with a purposive sampling technique, namely selecting research subjects based on certain criteria in the form of the highest and lowest levels of mathematical concept understanding. The results of the study indicate that students conceptual understanding varies across different materials. In the partial derivative material, students were not yet fully able to accurately represent the solution concept, especially in applying the rules for derivatives of exponential functions, so the results obtained did not conform to mathematical principles. These errors are conceptual in nature and indicate a weak grasp of certain basic concepts. However, in the material on derivatives of products of two functions and triple integrals, students demonstrated goog conceptual understanding. They were able to select, use, and apply solution procedures appropriately and systematically. This finding indicates that despite weaknesses in certain concepts, students still possess quite good procedural and conceptual abilities in the context of other problems in polynomial calculus.
Abstract:This study centered on the Lendawi (The Lanny Tribe Lamentation): Its Structure, Types, and Socio-Cultural Values. This Lendawi, as part of the Lanny culture, should be carried out by the Lanny community. The objectives…
are (1) to explain the structure of the Lendawi (Lanny lamentation), (2) to find out the type of stanza among the Lanny tribe, (3) to discuss on what occasions the Lendawi (Lanny lamentation) lamented, and (4) to elaborate the socio-cultural values contained in the Lendawi (Lanny lamentation). This research is qualitative because it only gives explanations about a problem in the form of words, not numbers. The writer found a structural pattern in the lendawi structure. Pattern (1) for men: silent trigger (inhale) + men starting pattern (2) for women: silent trigger (inhale) + women starting. Occasion: (1) to mourn the death of twenty-one people; (2) to welcome the new family who has just returned from a foreign land; (3) to release the family member to go overseas; (4) to release a girl to marry and follow her husband; (5) to remember a family member who has died; (6) to thank people for offering; (7) to mourn for a person who looks similar to a family member (dead or alive); and (8) to think about hard work in the garden that used to be shared with other family members (either dead or alive but living in some other place). Types of stanzas range from 3 lines (triplet) up to 12 lines (sonnet) or more. Sociocultural values are as follows: 1. Kinship address, 2. Using local cultural expressions, e.g., “rainfall,” “white, 3. Mount Tari, 4. The Donggi and Konda rivers 5. The Walem bird 6. The Gweage River, 9. The Ugwa River, 12. The Prikokir Bird 13. Special respect for uncles (mother’s brothers), 14. The Mukoko Clan, and 15. Grandmother as a protector for orphans.
Abstract:Abstract: This research is motivated by the problem of building material inventory management at Jaqfar Building Store, which is still done manually and based on subjective estimates. This often results in inaccuracies in…
n determining stock levels, either in the form of overstock or understock, which hinders operational effectiveness. The purpose of this study is to apply the Multiple Linear Regression method to analyze the relationship between incoming stock (X1) and outgoing stock (X2) variables with the ending stock variable (Y) to produce an optimal inventory prediction model. The research methodology used includes collecting historical transaction data for building materials such as cement, ceramics, zinc, plywood, and iron. This web-based prediction system was developed using the PHP programming language and a MySQL database. The analysis results show that the resulting regression model can provide a mathematical picture of future inventory patterns based on historical data. Implementation of this system is expected to assist the management of Jaqfar Building Materials Store in making strategic decisions regarding purchasing and sales in a more measured and efficient manner.
Keyword: building materials; data mining; inventory; multiple linear regression
Abstrak: Penelitian ini dilatarbelakangi oleh permasalahan pengelolaan persediaan bahan bangunan di Toko Bangunan Jaqfar yang masih dilakukan secara manual dan berdasarkan perkiraan subjektif. Hal ini menyebabkan sering terjadinya ketidaktepatan dalam menentukan jumlah stok, baik berupa kelebihan barang (overstock) maupun kekurangan barang (understock) yang menghambat efektivitas operasional. Tujuan dari penelitian ini adalah menerapkan metode Multiple Linear Regression (Regresi Linear Berganda) untuk menganalisis hubungan antara variabel stok masuk (X1) dan stok keluar (X2) terhadap variabel stok akhir (Y) guna menghasilkan model prediksi persediaan yang optimal. Metodologi penelitian yang digunakan mencakup pengumpulan data historis transaksi bahan bangunan seperti semen, keramik, seng, triplek, dan besi. Sistem prediksi ini dikembangkan berbasis web menggunakan bahasa pemrograman PHP dan basis data MySQL. Hasil analisis menunjukkan bahwa model regresi yang dihasilkan mampu memberikan gambaran matematis mengenai pola persediaan di masa mendatang berdasarkan data historis. Implementasi sistem ini diharapkan dapat membantu manajemen Toko Bangunan Jaqfar dalam mengambil keputusan strategis terkait pembelian dan penjualan secara lebih terukur serta efisien.
Kata kunci: bahan bangunan; data mining; persediaan; regresi linear berganda
Abstract:Saat ini kualitas sumber daya manusia Indonesia tertinggal jauh dari perkembangan negara-negara lain di dunia, termasuk negara tetangga. Berdasarkan hal tersebut dibutuhkan program atau kebijakan yang dapat mendukung pengembangan…
gembangan sumber daya manusia di Indonesia,salah satunya melalui sinergi triple helix.Penelitian ini dilakukan dengan tujuan untuk menganalisis lebih mendalam tentang kolaborasi triple helix di Indonesia dalam meningkatkan sumber daya manusia.Metode penelitian yang digunakan adalah penelitian kualitatif yang disampaikan secara deskriptif.Jenis data yang digunakan adalah data sekunder yang berdasarkan dari sumber data seperti jurnal dan buku-buku yang berkaitan dengan judul penelitian ini. Adapun objek dari jurnal ini ialah sinergi triple helix yang mencakup pemerintah,industri dan universitas, sedangkan subjek pada penelitian ini yaitu kualitas sumber daya manusia.Hasil dari penelitian ini yakni pemerintah bertanggung jawab untuk menetapkan kebijakan,universitas yang bertanggung jawab pengembangan pengetahuan dan penelitian, dan industri berkontribusi dengan menerapkan temuan penelitian ke dunia nyata, menghasilkan barang atau jasa inovatif, dan menyediakan peluang kerja yang sesuai dengan keterampilan yang dibutuhkan pasar. Program triple helix yang sudah berjalan hingga saat ini di Indonesia yaitu seperti program kampus merdeka melalui magang di bidang industri, proyek sosial, kewirausahaan, dan program Indonesia pintar (KIP dan Pemkab).Melalui program tersebut dapat menunjang dalam peningkatan sumber daya manusia di Indonesia