Judul: Anatomin Daerha Bahu dan Lengan Atas Landak Jawa (Hystrix javanica)
Abstrak: The study was aimed to observe the characteristic of javan porcupine shoulder and arm muscles and to compare with other animals which have similiarity on anatomy, phylogenetic, and behaviour. The study used two cadaver of javan porcupine that had been preserved in 10% formaline fixation. The muscles of shoulder and arm region were observed macroscopically include structure, origins and insertions after the skin was cut and opened. The results were photographed using a digital camera. Image were edited by using software Adobe Photoshop CS3® then named based on Nomina Anatomica Veterinaria 2012. The muscles found in shoulder and arm were the cutaneus, trapezius, rhomboideus, brachiocephalicus, latissimus dorsi, serratus ventralis, deltoideus, supraspinatus, infraspinatus, subscapularis, teres major, coracobrachialis, superficialis pectoral, deep pectoral, triceps brachii, tensor fascia antebrachii, m. brachialis, dan m. biceps brachii. The result showed that the muscles in javan porcupine were generally similar to dog and pangolin shoulder and arm muscles. However, there were differences in the muscles structure of the cutaneus, trapezius, serratus ventralis, and teres minor. The differences were presumed to be related with the adaptation to habitat, behavior, and their body.
Keyword: Bogor Agricultural University (IPB), javan porcupine, shoulder, muscle, Arm

Judul: Anatomi Otot Daerah Panggul dan Paha Trenggiling Jawa (Manis javanica)
Abstrak: The purpose of the study was to observe the muscles anatomy of the pelvic and thigh region of javan pangolin (Manis javanica) including the origin and insertion, and functions of the muscles related to pangolin behavior. Two specimen of javan pangolin preserved in 10% formaline was used in the study. The results were then compared with several animals that have related in phylogenic, anatomy and behaviour, from literature that related to the study. The muscles of pelvic and thigh region of javan pangolin that act as flexion and extension were m. tensor fascia lata, m. quadriceps femoris, m. gluteus medius, and m. gluteus superficialis. The muscles were relatively developed to produce maximum flexion and extension activity. The muscles that support adduction activity of hind legs were m. adductor magnus, m. adductor brevis, m. adductor longus, and m. gracillis. The most interesting result of the study was finding of m. abductor that absence in other mammalian muscles reported so far. The origin of the muscle was caudolateral side of os femoris and the insertion was caudodistal os tibia. It presumed that the muscle dominantly works as abduction of hind legs of javan pangolin. The pelvic girdle muscles such as m. psoas minor, m. psoas major, m. quadratus lumborum, and m. iliacus were well developed, thus helping the body to roll up. Therefore, it can be concluded that the muscle structure of the pelvic and thigh region of the javan pangolin have typical characteristics as digger and climber animal, and also support the body to roll up.
Keyword: Bogor Agricultural University (IPB), pelvic and thigh region, muscles, Manis javanica

Judul: Membran Komposit Polistirena Tersulfonasi–SiO2 untuk Aplikasi Direct Methanol Fuel Cell
Abstrak: Nafion® merupakan membran elektrolit pada direct methanol fuel cell (DMFC) yang memiliki nilai permeabilitas metanol yang tinggi. Oleh karena itu, membran alternatif seperti polistirena tersulfonasi (PSS) yang ditambahi SiO2 dikembangkan untuk mengurangi tingginya permeabilitas metanol tersebut. Penelitian ini bertujuan menentukan pengaruh tambahan SiO2 pada kinerja PSS. Keberhasilan proses sulfonasi ditunjukkan oleh nilai derajat sulfonasi (DS) dari PSS dengan konsentrasi PS 15% sebesar 81%. Membran komposit dibuat dengan ragam konsentrasi 3%, 5%, dan 7%. Spektrum inframerah transformasi fourier membran komposit menunjukkan gugus sulfonat (-SO3) pada 1008 cm-1 dan O-Si-O pada 1013 cm-1. Nilai konduktivitas proton dan beda potensial tertinggi dihasilkan pada membran PSS-SiO2 3% dengan nilai berturut-turut 2.1 × 10-4 S/cm dan 79 mV. Berdasarkan hasil tersebut, membran komposit PSS-SiO2 dapat diaplikasikan untuk DMFC.
Keyword: membran komposit, SiO2, polistirena tersulfonasi, sel bahan bakar metanol