Judul: Aplikasi IPB-Sprachprogramm untuk pelajaran bahasa Jerman tingkat pengantar
Abstrak: Sistem pendidikan jarak jauh berbasis web merupakan salah satu alternatif pernerataan kesempatan Edalam bidang pendidikan di Indonesia. Pada penelitian ini dilakukan pengembangan aplikasi XPB- Sprachprogramm yang membantu terselenggaranya proses belajar jarak jauh bahasa Jerman melalui layanan web dengan metode implementasi secara asinkronus. Metode penelitian yang digunakan untuk pengembangan aplikasi ini adalah tahapan-tahapan siklus pengembangan sistem menurut Davis (1983). Kelas Einführungsstufe adalah kelas bahasa Jerman tingkat pengantar yang diselenggarakan oleh Laboratorium bahasa Jerman pada UPT Bahasa IPB. Permasalahan dan kesulitan yang berhubungan dengan proses belajar mengajar yang dihadapi siswa pada kelas tersebut menjadi dasar untuk merancang aplikasi IPB-Sprachprogramm Prinsip-prinsip belajar jarak jauh (distance learning) dan konsep-konsep pendidikan berbasis web (web based education) diterapkan pada IPB-Sprachprogramm, sehingga aplikasi ini dapat dimanfaatkan oleh seluruh pengguna yang belajar secara mandiri melalui koneksi Internet di mana saja dan kapan saja. Materi-materi pengajaran disajikan dalam bentuk halaman-halaman web dengan menerapkan konsep hypermedia yang meminimalkan penggunaan grafis. Pada aplikasi ini juga disediakan beberapa fasilitas pendukung proses pembelajaran, seperti latihan soal, ujian on line, forum tanya jawab antara siswa dan pengajar, serta kamus elektronik. Pada kamus elektronik, dapat dilakukan pencarian kemiripan kata dengan menggunakan metode n- gram. Penentuan nilai n-gram yang digunakan adalah berdasarkan hasil pengujian statistik deskriptif dan statistik inferensi (paired sample T test dan uji korelasi õivariate) pada data-data hasil percobaan dengan Eruang sampel yang telah ditentukan. Pada kamus Jerman-Indonesia diterapkan kombinasi pencarian kesamaan string dengan 4-gram dan 5-gram, sedangkan pada kamus Indonesia-Jerman diterapkan pencarian kesamaan string dengan 4-gram...
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Judul: Pengembangan WordNet Bahasa Indonesia Berbasis Web
Abstrak: WordNet is an electronic lexical database that classifies categories of words such as nouns, adjectives, verbs, adverbs, and others in a set called synonim set (synset). WordNet for English has been developed by Princeton University. The purpose of this study is to build an web-based WordNet for Bahasa Indonesia. We used evolutionary method that started by building the parts that were wellunderstood as the first implementation and continuously developed based on comments from users until an adequate application had been developed. The data sources of the application are Kamus Besar Bahasa Indonesia (KBBI) and Indonesian thesaurus. Our application can display the meaning/definition of a word and display a word’s relations with other words. This application can also be used to add new words, definitions, examples, and word relationships; this function can only be done by users who have registered and been approved for registration by administrator. In this study we also developed an XML document format and XML Schema Definition to assist others in obtaining data from the system.
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Judul: Characterization of The Chemical Constituents and Antioxidant Capacity of Green and Oolong Teas (Camellia sinensis) Manufactured in Thailand
Abstrak: Tea in Thailand most manufactured in northern area, especially Chiang Rai, Chiang Mai, Nan, and Mai Hang Son province. The aim of this study was to determine and compare the chemical compositions and antioxidant capacity of 4 important Thai tea products. A total of 13 of green teas of 2 major cultivars, assamicaand cv. oolong no.12 (chin hsuan oolong) and 26 of oolong tea of 2 major varieties, cv. oolong no. 12 and cv. oolong no. 17 (chin shin oolong) were collected from 18 factories in Chiang Rai province in 2011. The total polyphenol content was determined according to International Organization for Standardization (ISO 14502-1). For antioxidant capacity, DPPH radical scavenging activitiy assay and ferric reducing antioxidant power assay were determined. The catechins content and caffeine content were determined using HPLC by ISO method (ISO-14502-2). Results showed that about 95% of the 39 tea samples manufactured in Thailand had moisture content below 7%, 5% of tea samples being above 7%. The total polyphenol content in green tea was found to vary from 11.86 to 21.19%GAE, while in oolong tea was found in a range of10.22 to 17.57%GAE. The caffeine content in green tea samples were in a range of 1.69 to 3.7%, while in oolong tea samples were in a range of 1.61 to 3.26%. The catechin content in green tea samples were in a range of 8.31-14.08%, while in oolong tea samples were in a range of 6.81-12.46%. The antioxidant capacity in green tea samples was 164.01 mmole TE/100 g dry basis, while in oolong tea samples was about 132.73mmole TE/100 g dry basis. This study provided useful information for the tea industry in Thailand and other countries in processing and selecting a good-quality tea.
Keyword: Antioxidant capacity, Camellia sinensis, Green tea, Oolong tea, Thailand