Judul: Respon Perilaku Abnormal Kukang Sumatera Terhadap Pengayaan Obyek Pakan di Yayasan International Animal Rescue (IAR) Bogor
Abstrak: Kukang sumatera adalah satwa endemik asal pulau Sumatera. Populasi kukang semakin menurun, sehingga dibutuhkan usaha yang lebih untuk melindungi dan menyelamatkannya. Penelitian ini dilaksanakan di Yayasan International Animal Rescue dengan menggunakan 3 individu kukang sumatera, yaitu Bima, Jupe, Lucia sebagai objek pengamatannya. Pengamatan terhadap perilaku harian dilakukan dengan menggunakan metode scan sampling dan metode one zero sampling. Terdapat 3 tahapan pada penelitian ini, yaitu tahapan pra perlakuan, tahapan pemberian perlakuan, dan tahapan pasca perlakuan. Perilaku abnormal stereotip hanya teridentifikasi pada satu ekor kukang, yaitu Bima. Pengayaan bambu ayun serangga adalah bentuk pengayaan yang paling disukai oleh kukang dan memberikan pengaruh signifikan dalam menekan perilaku grooming, sementara itu pengayaan lemper buah merupakan bentuk pengayaan yang memberikan pengaruh paling signifikan dalam menekan perilaku abnormal stereotip.
Keyword: abnormal, International Animal Rescue, kukang sumatera, rehabilitasi

Judul: analisis perilaku harian dan sosial kukang (nycticebus coucang) pada pusat studi satwa primata LPPM-IPB
Abstrak: Indonesia memiliki tiga jenis kukang, yaitu Nycticebus coucang yang tersebar di Sumatera dan Kepulauan Riau, Nycticebus menangesis yang tersebar diKalimantan, Bangka Belitung, dan Nycticebus javanicus (kukang jawa) yang hanyatersebar di pulau Jawa dan Panaitan. Kukang juga dikenal sebagai hewan yang hidup soliter di habitat aslinya. Perilaku sosial sangat jarang ditemukan pada pengamatan kukang di habitat aslinya. Status keberadaan kukang sekarang menjadi hewan yang dilindungi akibat banyaknya perburuan liar. Guna meningkatkanpopulasi kukang sudah banyak konservasi yang dibuat untuk melestarikan kukang.Salah satu faktor penentu keberhasilan suatu konservasi ex situ yaitu keadaan kandang satwa yang merupakan habitat buatan yang mewakili habitat alaminya dialam. Dalam pengelolaan kandang diperlukan pengayaan kandang sebagai suatu metode yang mempresentasikan habitat aslinya di alam. Kegiatan pengamatan perilaku sosial juga perlu diamati guna memperkirakan keberhasilan kegiatan mating dan memperbanyak populasi. Hasil penelitian ini menunjukkan bahwa hewan soliter seperti kukang mengalami peningkatan aktivitas dan interaksi sosial pada Pusat Studi Satwa Primata LPPM-IPB.
Keyword: Kukang, perilaku, konservasi, pengamatan

Judul: Algorithm construction of HLI hash function
Abstrak: Cryptography is a study of mathematical techniques related to aspects of information security regarding on confidentiality, data integrity, entity authentication, and data origin authentication. Data integrity is a service, which is associated with the conversion of data carried out by unauthorized parties. To maintain data integrity, one can use hash functions. An hash function is a computationally efficient function to map an arbitrary length bitstring to a fixed length bitstring called as hash value. The use of hash function in maintaining the information integrity and authentication is in digital signatures, virus protection, and software distribution. Illustration of the hash function in the integrity and authentication of information that is emailed as follow. The sender sends the information and hash value to the recipient. If the hash value of the information is equal to the hash value that is sent by the sender, then information has not been changed. Otherwise the information has been changed. An hash function has two properties, one way and collision resistance. An hash function is called one way if it is computationally infeasible to find any input such that when given any hash value . Meanwhile an hash function is called collision resistant if it is computationally infeasible to find any two inputs where such that . The purpose of this study is to construct a HLI hash function algorithm, to analyze the speed and security of the hash functions as a results of construction. Furthermore, it is to compare it with SWIFFT. Hash function is constructed based on the result of algebraic operations on modular polynomial ringwith . Modular polynomial ring noted as is a set of all polynomials of degree at most with coefficients in . can be represented as a set of integer vector of modulo in dimension . So, it is simple to implement in a computer. In vector operations, is lattice . Furthermore, alattice that is defined from certain polynomial ring is called ideal lattice. HLI hash function is consists of addition and multiplication algorithm in the ring. Addition algorithm consists of sumation operations of modulo and multiplication consists of multiplication operations of modulo . Generally, algorithm of HLI hash function consists of multiplication operations of modulo and addition operations of modulo . However, if the input is binary number then multiplication algorithm only consists of multiplication operation of modulo , so algorithm of HLI hash function consists of multiplication operations of modulo and addtion operations of modulo . An hash function is secured if it has two properties, i.e., one way and collision resistance. HLI hash function hash is one way, it is following the proof of Micciancio. It is has collision resistant because of polynomial is irreducible over and monic. Moreover, it is proved that for every unit vector , the vector is small vector. If the input of hash function is a binary number then HLI hash function only involves addition operations of modulo . So the time that used almost same with SWIFFT. The excellence of HLI hash function is the key size smaller than SWIFFT. This effect on
Keyword: hash function, modular polynomial ring, lattice