Judul: Keanekaragaman Jenis dan Karakteristik Habitat Kelelawar di Kawasan Hutan Batang Toru Bagian Barat (HBTBB), Sumatera Utara
Abstrak: The Western Batang Toru Forest area is a habitat to many kinds of animals including bats. The aim of this study is to identify the species and habitat characteristics of bats in the Western Batang Toru Forest. There are 4 habitat that was chosen to represent Western Batang Toru Forest, which were Transitory Hill- Montane Forest, Peat Forest, Upper Dipterocarpaceae Forest and Liang Cave. Bats were captured using 2 Harptrap. A total of 331 were captured and 11 of them were identified as recapture. Bats that were captured consisting 16 species, where 3 species were from the suborder Megachiroptera and 13 species were from the suborder Microchiroptera. Bat species identified in this research were Chironax melanocephalus, Cynopterus brachyotis Forest Lineage, Rousettus amplexicaudatus, Hipposideros bicolor, Hipposideros cervinus, Hipposideros larvatus, Rhinolophus affinis, Rhinolophus lepidus, Rhinolophus pusillus, Rhinolophus stheno, Rhinolophus acuminatus, Kerivoula papillosa, Murina cyclotis, Phoniscus atrox, Miniopterus magnater, and Miniopterus schreibersii.
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Judul: Keanekaragaman Jenis Kelelawar di Desa Cikarawang Kecamatan Dramaga Kabupaten Bogor Provinsi Jawa Barat
Abstrak: Bat is one type of mammals having an important role for human life. The role consist of plants pollinators agent, plant seed disperser, producing guano for fertilizer, and as controlling pests insect of plants. This study aims to identify the bats species and measuring bats community similarity between paddy fields, garden, and forest habitat. The amount of the successful caught during this studies about 11 species of four family, namely: Hipposideridae (1 species), Vespertilionidae (4 species), Rhinolophidae (1 species), and Pteropodidae (5 species). Diversity index of bats in garden habitat is 1.80, forest habitat is 1.64, and paddy field habitat is 1.29 respectivelly. Similarity of bats community betwee garden and paddy field habitat is 0.72, between forest and garden habitat is 0.46, and between forest and paddy field is 0.36 respectivelly.
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Judul: Kapsul Ibuprofen Tersalut Pektin-Natrium Alginat- ZnO sebagai Sistem Pengantar Obat dengan Metode Gelasi Ionik.
Abstrak: Ibuprofen merupakan obat antiinflamasi dan analgesik yang memiliki waktu paruh yang singkat di dalam plasma, menyebabkan konsumsinya meningkat hingga 3-4 kali dalam sehari sehingga dibutuhkan penyalut yang dapat mengendalikan rilisnya ibuprofen. Enkapsulasi ibuprofen berbahan dasar komposit polimer pektin-natrium alginat-ZnO dibuat dengan metode gelasi ionik. Sebelumnya senyawa ZnO berhasil disintesis dengan metode hidrotermal. Ukuran kristal ZnO yang didapat berkisar 273–556 nm dengan bentuk heksagonal. Kapsul dibuat dengan jumlah tambahan ZnO yang berbeda, pada kapsul komposit 1 mengandung jumlah ZnO lebih banyak dari kapsul komposit 2. Ukuran kapsul yang didapat berkisar 1.9-2.2 mm. Semakin banyak ZnO yang ditambahkan ke dalam matriks penyalut menyebabkan pelepasan ibuprofen terjadi secara perlahan. Efisiensi penyalutan yang didapatkan ialah 32.57% untuk kapsul komposit 1 dan 31.46% untuk kapsul komposit 2. Kinetika pelepasan ibuprofen dengan penyalut pektin-natrium alginat-ZnO mengikuti model Korsmeyer Peppas.
Keyword: gelasi ionik, natrium alginat, pektin, ZnO