Judul: Pengembangan Front-end Aplikasi Marketplace Tokocabai berbasis Web
Abstrak: Cabai merupakan salah satu komoditas pertanian yang sering mengalami fluktuasi harga. Hal ini bisa berasal dari berbagai macam faktor, salah satunya yaitu alur distribusi produk cabai yang panjang. Tokocabai merupakan aplikasi marketplace berbasis web untuk tujuan kegiatan jual beli cabai dari petani lokal ke konsumen. Aplikasi ini diharapkan bisa mempersempit alur distribusi produk cabai, sehingga petani bisa mendapat harga jual yang lebih bagus. Penelitian ini mengembangkan aplikasi dari sisi front-end menggunakan framework Vue Js. Pengembangan front-end dikerjakan oleh satu orang yang tergabung dalam sebuah tim marketplace. Pengembangan aplikasi Tokocabaimenggunakan metode extreme programming (XP). Tahapan metode XP yaitu planning, design, coding, testing, dan release. Iterasi yang berhasil dilaksanakan yaitu sebanyak dua kali dengan jumlah user story sebanyak 19. Jumlah user story pada iterasi satu sebanyak 8 dan iterasi dua sebanyak 11. Kategori fitur yang sudah berhasil diimplementasikan yaitu auth, katalog produk, profil, transaksi, dan review produk.
Keyword: cabai, extreme programming, front-end, marketplace, web

Judul: Perancangan User Experience Aplikasi Mobile Tokocabai dengan Metode Lean UX
Abstrak: Cabai merupakan komoditas pertanian di Indonesia yang memiliki produksi dan permintaan yang cukup tinggi, namun harga cabai di pasar seringkali mengalami fluktuasi harga yang menyebabkan kerugian di kalangan petani cabai. Teknologi informasi berupa marketplace dinilai dapat membantu petani dalam meningkatkan keuntungan penjualan komoditas pertanian khususnya cabai. Sebelumnya, marketplace Tokocabai sudah tersedia untuk versi web, namun untuk versi mobile belum tersedia. Penelitian ini bertujuan menghasilkan rancangan prototipe mobile user experience sistem Tokocabai yang sesuai dengan kebutuhan para praktisi dan pengguna. Metode Lean UX memiliki empat tahap cycle yaitu declare assumption, create an MVP, run an experiment, dan feedback and research. Penelitian ini dilakukan sebanyak dua iterasi, pada iterasi pertama pengujian dilakukan dengan usability testing terhadap lima orang responden, sedangkan pada iterasi kedua evaluasi dilakukan dengan heuristic evaluation on mobile interface. Pada iterasi pertama, hasil usability testing menunjukkan bahwa seluruh responden dapat menyelesaikan task yang diberikan, selain itu pada iterasi kedua, telah disajikan daftar evaluasi yang dapat dijadikan acuan perbaikan pada penelitian berikutnya. Hasil akhir penelitian ini berupa prototipe aplikasi mobile Tokocabai yang sudah disesuaikan bagi kebutuhan praktisi dan pengguna., Chili is an agricultural commodity in Indonesia which has a quite high production and demand, but chili prices in the market often experiences price fluctuations which cause losses among chili farmers. Marketplace is considered to be able to help farmers increase profits from selling agricultural commodities, especially chilies. Previously, the Tokocabai marketplace was available for the web version, but the mobile version is not yet available. This study aims to produce a mobile user experience prototype design for the Tokocabai system that suits the needs of practitioners and users. The Lean UX method has four cycle stages, namely declare assumption, create an MVP, run an experiment, and feedback and research. This research was conducted in two iterations, in the first iteration the test was carried out by usability testing on five respondents, while in the second iteration the evaluation was carried out by heuristic evaluation on mobile interface. In the first iteration, the results of usability testing showed that all respondents were able to complete the given task. In the second iteration, an evaluation list was presented which could be used as a reference for improvement in subsequent research. The final result of this research is a prototype of the Tokocabai mobile application that has been adapted to the needs of practitioners and users.
Keyword: cabai, lean ux, marketplace, user experience

Judul: Mercury Toxicity and It’s Effect on Histopathology Change of Nile Tilapia (Oreochromis niloticus).
Abstrak: Nile tilapia (Oreochromis niloticus) is one of fish species that oportunity to contaminated with mercury. The effects of pollutants can damage living organisms organs and can cause death. The effects caused mercury had acute or chronic character. The aims of this study are to determine threshold and acute toxicity of mercury chloride (HgCl2) of Nile tilapia (Oreochromis niloticus), to assess the effect of mercury chloride (HgCl2) on several biometric parameters (survival, growth rate of average daily weighted, liver condition, bile and reproductive variability of Nile tilapia (Oreochromis niloticus), assess the level of damage to the histological structure of the gills, liver and kidney of Nile tilapia (Oreochromis niloticus) caused mercury chloride (HgCl2) exposure. This study was conducted from February to June 2013. Nile Tilapia (Oreochromis niloticus) were used in this study were female with average weight 20 grams or 11-13 cm length range. Toxicant materials used in this study was mercury chloride (HgCl2). Fish were reared in each aquarium 60x40x30 containing 48 liters of water. This study consists of three stages: a preliminary test, acute test, and sub-chronic test. To determine the changes in biometric condition of tilapia approximated by measuring the survival rate (SR), the growth rate of average daily weight , the content of mercury in the fish organs, hepatosomatic index (HSI), the relative bile volume (VER), gonadal soamtic index (IKG), fecundity and oocit diameter, tissue damage caused by mercury in fish organs by making histological preparations stained with hematoxylin and eosin. The median lethal concentration (96 hr, LC50) of Mercury Chloride was calculated as 1,64 mgL--1.The survival rate was highest in the control treatment (46,67 %) . Mercury chloride with concentration 0.196 mgL--1 show significant effect to changes HSI and relative bile volume, and oocyte diameter of Nile tilapia (p < 0,05). Mercury chloride with a concentration of 0,164 mgL-1 and 0,196 mgL-1 have not a significant effect on the growth rate of weight, gonadal somatic index and fecundity of Nile tilapia (p > 0,05). Mercury chloride cause damage to gills (hyperplasia, hypertrophy, proliferation and neukrosis), liver (hyperplasia, hemorhage, shrinkage of hepatocytes, proliferation and neukrosis) and kidney (hyperplasia, hemorrhage, shrinkage of the glomerulus, proliferation and neukrosis).
Keyword: Nile tilapia, Hepatosomatic indexs (HSI), histopathology