Judul: Penentuan pola sekuensial pada data transaksi perpustakaan IPB menggunakan algoritma graph search techniques
Abstrak: Data transaksi di Perpustakaan IPB terutama peminjaman buku dicatat setiap hari sehingga menghasilkan kumpulan data transaksi peminjaman buku dalam ukuran besar. Untuk mengetahui pola perilaku peminjaman buku oleh seluruh anggota perpustakaan khususnya mahasiswa Strata 1 (S1) tahun masuk 2003 digunakan salah satu metode dalam data mining yaitu sequential pattern mining dengan algoritma Graph Search Techniques (GST) sebagai pembentuk large sequence. Algortima GST dapat menemukan urutan large k-sequence (k ≥ 3) tanpa mengetahui langsung large (k-1) sequence. Pola sekuensial yang merupakan large sequence maksimal dicari dari seluruh large sequence yang terbentuk. Pola sekuensial yang diperoleh kemudian direpresentasikan agar mudah dipahami dan diinterpretasikan. Informasi yang diperoleh diharapkan dapat berguna bagi pengelola perpustakaan dalam peningkatan mutu layanan di Perpustakaan IPB.
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Judul: Penerapan Algoritme Prefixspan dan Clospan untuk Mencari Pola Sekuensial pada Data Peminjaman Buku di Perpustakaan IPB
Abstrak: Library is an important facility in university. From the library data we can obtain various information, such as patterns of borrowing books by library users. This study aims to determine the sequential patterns of IPB’s library book loan data using two algorithms namely Clospan and Prefixspan. This study used the dataset with the size ranging from 50 to 4.140 and minimum support ranging from 5% to 15%. The experimental results show that the larger dataset and the minimum support used, Clospan algorithm has better performance than Prefixspan. In addition, the results of two sequential pattern algorithms which shows the relationships between the book code 027 (general libraries) with 820 (literature) books, 631 (farm management,agronomy, andhorticulture) books with book code 636 (animal husbandry and breeding in general), and 631 (farm management,agronomy, andhorticulture) to 658 (business management, administration, and commercial organization).
Keyword: Clospan, Prefixspan, library circulation data, sequential pattern

Judul: Acute Oral Toxicity Lethal
Dose 50 (LD50) of Cayenne Pepper (Capsicum annuum) Infusion in DDY Strain
Mice (Mus musculus)
Abstrak: In recent years, there has been a growing interest in herbal remedies such as cayenne pepper which is known for its versatility beyond its culinary use. Cayenne pepper’s phytochemicals, including capsaicinoids, carotenoids, phenolic compounds, vitamins, and minerals, offer antioxidant, antimicrobial, and antiinflammatory properties, making it a valuable ingredient in various fields such as veterinary medicine, agro-food, cosmetics, and pharmaceuticals. However, concerns regarding the potential risks of cayenne pepper consumption as herbal medicine arise. This study aims to determine the acute oral toxicity lethal dose 50 (LD50) of cayenne pepper infusion in female DDY strain mice and its effects on the mice's organs. The research involved 20 DDY strain female mice divided into 4 groups which are control group (administered with distilled water) and treatment groups that are given cayenne pepper infusion at doses of 5, 10, and 15 g/kg BW orally. The observed variables included mortality, clinical symptoms, physiological responses, and organ weight. Acute toxicity testing indicated that the cayenne pepper infusion falls into the category of practically non toxic formulations. Administration of the cayenne pepper infusion up to a dose of 15 g/kg BW did not induce toxicity symptoms, such as clinically pathological symptoms, macro anatomical organ changes, or mortality nor affect both weight gain and loss.
Keyword: cayenne pepper, infusion, acute oral toxicity, DDY strain mice, herbal medicine