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 Landak Jawa (Hystrix javanica)
Abstrak: This study was conducted to observe the anatomical structure of pelvic and thigh muscles in Javan porcupine included their origins and insertions in order to describe the possible functions of each muscles. This study used two specimen of adult male porcupines preserved in 10% formalin. Observations carried out by observing the outer morphology of pelvic and thigh regions. Determination of structures, origins, and insertions of each muscles was done by dissecting the superficial and deep layers and the muscles were named according to the Nomina Anatomica Veterinaria 2005. The muscles which found in pelvic and thigh regions were the cutaneous, psoas minor, iliopsoas (psoas major and iliacus venter lateral et medial), quadratus lumborum, tensor fasciae latae, gluteus superficialis, gluteus medius, piriformis, gluteus profundus, biceps femoris, abductor cruris caudalis, semitendinosus, semimembranosus, quadriceps femoris (vastus lateralis, rectus femoris, vastus intermedius, and vastus medialis), gemelli, obturatorius externus, obturatorius internus, sartorius, gracilis, pectineus, adductor longus, and adductor magnus et brevis. The results showed that Javan porcupine has unique structure of pelvic and thigh muscles that is the prominent of cutaneous muscle was extended up to the pelvic and thigh regions, the quadratus lumborum with two bellies, and the course of biceps femoris and semitendinosus which reached up to the sacrum and coccygeal regions. The structure of these pelvic and thigh muscles are sugested to be related with the adaptation and behavior of Javan porcupine during erecting the quills, rattling the tail quills, rushing enemies, and digging burrows.
Keyword: 

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