Judul: Designing Paddy Leaf Chart Color Digital Based on Arduino Using RGB with Reflectance Methode.
Abstrak: Bagan warna daun padi digital merupakan alat penentu kadar kebutuhan pupuk pada tanaman padi, alat ini memanfaatkan fungsi dari sistem minimum Arduino Atmega 328P, sumber cahaya yang digunakan yaitu RGB light emitting diode (LED) dengan jangkauan panjang gelombang cahaya merah 620–750 nm, cahaya hijau 495–570 nm, cahaya biru 450–495 nm. Sistem kerja alat menggunakan sensor optik yaitu fotodioda sebagai detektor nilai intensitas cahaya yang dipantulkan oleh sampel, data acuan yang digunakan berupa nilai analog to digital converter (ADC) yang dibentuk ke dalam suatu database sebagai nilai pembanding yang disandingkan dengan skala bagan warna daun (BWD) berstandarkan International Rice Research Institute (IRRI). Hasil pembacaan sensor yang ditampilkan lycuid crystal display (LCD) merupakan nilai ADC dari setiap pembacaan nilai reflektansi red, green, blue serta penunjukan skala warna padi yang telah ditentukan kadar kebutuhan pupuknya.
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Leaf color chart, Light sensor, Microcontroller, RGB, Mikrokontroler, Sensor cahaya, Karakterisasi sensor, Skala warna

Judul: Pengembangan Sensor Warna Daun untuk Menduga Kebutuhan Pupuk pada Tanaman Padi
Abstrak: Leaf colour is an indicator of plant fertility level which can be used for predicting fertilizer need of the paddy plants. The use of leaf colour chart (LCC) is one of instruments to measure greenness level. This research used image processing technology for analysing leaf colour level according to the IRRI-LCC standard. Taking the image of paddy leaves used a cart which is equiped with a proximity sensor and a CCD camera. Proximity sensor functions sending a signal to the camera to capture an image at every certain travelling distance. The captured images were then saved in the hard disk memory. Furthermore, those images were processed with Visual Basic program for analysing leaves area and greenness level. Then, the results were transformed into an area colour map, where each patch of land contains information about fertilizer need. Beside analysing with image processing, the measurement of leaf colour level was also done manually. The result of the manual measurement was also translated into an area colour map. The results of the manual and image processing measurement were then compared for determining the accuracy level. Accuracy at the colour level 2 was 38%, the colour level 3 was 69%, and the colour level 4 was 75%. The correlation between leaf colour level and nutrient content of soil was observed by comparing the result of soil nutrient content test and leaf colour level. It was found that both averages show a strong correlation
Keyword: 

Judul: Dampak Lokal Blok Anestesi Lignocaine-Ropivacaine Pasca Kastrasi Kucing.
Abstrak: This study aimed to assess the impact of a lignocaine-ropivacaine block on cats post castration. Eight cats were divided into two groups. First group consists of 4 male cats that were induced with mixture of tiletamine+zolazepam (Zoletil®), ketamine, and xylazine (TKX) with the dosage of 0.02ml/kg – 0.03ml/kg. Second group consists of 4 male cats that were induced with TKX and combination of local block of 1 mg/kg lignocaine and 0.75 mg/kg ropivacaine at the scrotal sac. Pain score of each group is assesed using Universidade Estadual Paulista (UNESP)- Botucatu Multidimensional Composite Pain Scale at the timeline of 2, 4, and 24 hours post castration. As a conclusion, infiltration of TKX with the combination of local block (Lignocaine + Ropivacaine) helped to managed post-operative pain as compared to inducing of TKX only.
Keyword: cat, castration, local block, lignocaine-ropivacaine, post operative