Judul: Isolasi Bacillus Thuringiensis dari berbagai contoh tanah dan toksisitasnya terhadap larva spodoptera litura
Abstrak: Dalam usaha mengi solasi bakteri penghasil kristal protein (p.k.p.) dari 24 contoh tanah, diperoleh empat isolat yang berasal dari empat contoh tanah yang berbeda (16.67%). yaitu contoh tanah M.041, M.211, M.071, dan M.191. Pada pengamatan bentuk kristal menggunakan mikroskop kontras fase pada perbesaran 1000 kali di jumpai dua bentuk kristal, yaitu bipiramida (M.041, M.191, M.211) dan bulat (M.071). Rendahnya perolehan isolat bakteri p.k.p. dari contoh tanah yang diperiksa kemungkinan besar disebabkan karena contoh tanah yang diperiksa terlalu lama disimpan (tujuh bulan). beberapa di antaranya berasal pembakaran limbah ulat sutra dari tempat Hasil penquil an toksisitas kristal terhadap empat isolat tersebut ditambah 15 isolat hasil peneliti lain menunjukkan bahwa isolat 1.01 dan K.04 menvebabkan mortalitas mendekati 100 % pada larva S. litura. Data ini ditafsirkan dengan hati-hati dari perlu dilakukarı pengujian ulang.
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Judul: Pengaruh Inokulum Bacillus thuringiensis terhadap Perubahan Struktur Usus Tengah Ulat Grayak (Spodoptera litura F.)
Abstrak: Bacillus thuringiensis was known as biocontrol agent of cotton leafworm growth. B. thuringiensis isolate produced protein crystal as Cry protein which on alkaline condition caused epitel cell in the midgut of cotton leafworm swelled. The aim of this research was to know the effect of B. thuringiensis inoculum from different subspesies to cotton leafworm and the histopatology change in its midgut. Bacillus thuringiensis subsp. aizawai (Bta), B. thuringiensis subsp. pakistani (Btp), B. thuringiensis 47 (Bt47), and B. thuringiensis Lot 2 (BtL2) were tested to 3rd instar larvae. The structures of its midgut were observed at 0, 24th, 48th, 72nd, 96th and 120th hours. They were preparated by Paraffin method and Hematoxylin-Eosin staining. Generally, all 0 hour treatments showed the similar condition with control which the peritrophic membrane and epithelial cells below were still normal. The peritrophic membrane was dissapear at 24th hours, followed by the swelling of epithelial cells and its cores at 48th till 72nd hours. At 96th and 120th hours, the epithelial cells were lysis and disintegrated. The BtL2 isolate had the highest and fastest damages, followed simultantly by Bta, Bt47, and Btp.
Keyword: Spodoptera litura, midgut, histopathology, acillus thuringiensis

Judul: Penambahan Fitur Connex sebagai Atribut Community pada Aplikasi Hypepreneur
Abstrak: Aplikasi Hypepreneur menawarkan fitur community yang didasarkan pada kebutuhan pengusaha serta calon pengusaha. Agar fitur community dapat berfungsi sesuai manfaat komunitas bisnis, maka perlu diadakan penyesuaian aplikasi berupa penambahan fitur. Penelitian menggunakan metode analisis MoSCoW untuk menganalisis penambahan fitur berdasarkan pandangan tim Hypepreneur serta analisis konjoin untuk menganalisis preferensi konsumen terhadap atribut dalam penambahan fitur pada Hypepreneur. Data yang digunakan berupa data metrik dengan evaluasi rating terhadap kombinasi level dari masing-masing atribut. Penelitian menghasilkan atribut preferensi konsumen yaitu profil komunitas, laman diskusi, team up dan kalender event. Atribut tersebut terintegrasi dalam fitur Connex pada prototype aplikasi Hypepreneur., The Hyperpreneur application offers community features based on the needs of entrepreneurs as well as potential entrepreneurs. In order for the community feature to function according to the benefits of the business community, it is necessary to make application adjustments in the form of additional features. This study uses the MoSCoW analysis method to analyze the addition of features based on the views of the Hypepreneur team and conjoint analysis to analyze consumer preferences for attributes in adding features to the Hyperpreneur. The data used is in the form of metric data with rating evaluation on the combination of levels of each attribute. Research produces consumer preference attributes, namely community profiles, discussion pages, team ups and event calendars. These attributes are integrated in the Connex feature on the Hyperpreneur application prototype.
Keyword: analisis MosCoW, Hypepreneur, preferensi, komunitas bisnis, analisis conjoint