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: 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: Analysis of Value Creation for Seva.id Based on Brand Consideration Metrics
Abstrak: Kondisi pasar yang potensial dan tren membuat Seva.id hadir sebagai platform otomotif digital terintegrasi yang melayani jual beli mobil baru dan bekas milik ASTRA. Namun demikian, kehadiran Seva.id belum memberikan dampak positif bagi ASTRA, kondisi penjualan mobil dari ASTRA sendiri pada Juli 2019 cenderung menurun 19,1% dibandingakan periode tahun lalu. Pencapaian Seva.id terhadap jumlah pengunjung tahun 2019 juga menurun 39,25% dari tahun sebelumnya. Seva.id sering melakukan promo flash sale, namun capaiannya hanya 10% untuk target register. Penelitian ini bertujuan untuk mengidentifikasi masalah dalam value creation Seva.id dengan pemetaan Value Proposition Canvas (VPC) 0, merumuskan matriks Brand Consideration Seva.id, merumuskan Kerangka Kerja Empat Langkah dan memformulasikan value proposition Seva.id yang sesuai dengan preferensi konsumen. Dari VPC 0 didapatkan Seva.id sebagai platform all in one untuk purchase managing mobil baru atau bekas dengan fitur lengkap. Kemudian, nilai tersebut dikaji dengan perspektif konsumen sehingga menghasilkan elemen-elemen matriks Brand Consideration yang terbagi menjadi 2 jenis yaitu 7 elemen fungsional, diantaranya informs, quality, variety, makes money, reduce effort, reduce cost, dan organized. Sedangkan, 2 elemen emosional, diantaranya reduce anxiety dan provide access. Kerangka Kerja Empat Langkah memetakan 15 nilai yang ditingkatkan dan delapan nilai baru potensial untuk Seva.id. Nilai tersebut diformulasikan dalam dalam VPC 1.0., Potential market conditions and trends make Seva.id present as an integrated digital automotive platform that serves the buying and selling of new and used cars owned by ASTRA. However, the presence of Seva.id has not had a positive impact on ASTRA, the condition of car sales from ASTRA itself in July 2019 tended to decrease by 19.1% compared to last year's period. Seva.id's achievement of the number of visitors in 2019 also decreased by 39.25% from the previous year. Seva.id often does flash sale promos, but only 10% of the achievement is for the target register. This study aims to identify problems in Seva.id value creation by mapping Value Proposition Canvas (VPC) 0, formulating the Seva.id Brand Consideration matrix, formulating a Four-Step Framework and formulating a Seva.id value proposition that suits consumer preferences. From VPC 0, Seva.id is found as an all in one platform for purchasing managing new or used cars with full features. Then, the value is examined with a consumer perspective to produce Brand Consideration matrix elements which are divided into 2 types, namely 7 functional elements, including information, quality, variety, making money, reduce effort, reduce cost, and organized. Meanwhile, 2 emotional elements, including reduce anxiety and provide access. The Four-Step Framework maps 15 improved values and eight potential new values for Seva.id. This value is formulated in VPC 1.0.
Keyword: value creation, e-commerce, automotive, car, brand consideration