Judul: Management Training and Utilization of Palm Cockatoo as Display Animal in TMII Jakarta Bird Park
Abstrak: Kakatua raja merupakan salah satu spesies burung dilindungi di Indonesia yang dikonservasi dan dimanfaatkan sebagai satwa peraga untuk menarik minat pengunjung di Taman Burung TMII Jakarta. Penelitian ini bertujuan mengidentifikasi manajemen pelatihan, menganalisis persepsi dan preferensi responden, serta menghitung nilai ekonomi berdasarkan kesediaan membayar untuk pemanfaatan kakatua raja di taman Burung TMII Jakarta. Penelitian ini dilaksanakan di Taman Burung TMII Jakarta pada Maret sampai April 2022. Metode yang digunakan adalah observasi lapang, wawancara, survey, dan studi literatur. Hasil penelitian menunjukkan bahwa manajemen pelatihan kakatua raja terdiri dari tiga tahap yaitu adaptasi, bonding, dan latihan. Persepsi responden cenderung setuju mengenai pemanfaatan dan konservasi kakatua raja di Taman Burung TMII Jakarta. Nilai total kesediaan membayar yang bersedia responden keluarkan terhadap interaksi kakatua raja sebagai satwa peraga adalah sebesar Rp 13.474 dengan rataan jumlah pengunjung 7268 orang per bulan dengan total pendapatan ekonomi sebesar Rp 97.926.737/bulan., Palm cockatoo (Probosciger aterrimus) is one of the protected bird species in Indonesia that is conserved and used as a display animal to attract visitors at TMII Jakarta Bird Park. This study aims to identify training management, analyze respondents’perceptions and preferences, and calculate the economic value based on willingness to pay (WTP) for the use palm cockatoo at TMII Jakarta Bird Park. This research was conducted at TMII Jakarta Bird Park on March to April 2022. The methods used in this research are field observations, interviews, surveys, and literature studies. The results showed that the palm cockatoo management training consisted of three stages, namely adaption, bonding, and training. Respondents’perceptions tend to agree about the use and conservation of palm cockatoo at TMII Jakarta Bird Park. The total value of willingness to pay that respondents are willing to spend on the interactions of the palm cockatoo as a display animal is Rp. 13.474. with an average number of visitor of 7268 people/month with a total economic income of Rp 97.926.737/month.
Keyword: Palm cockatoo, perception, preference, training management, willingness to pay

Judul: Javan Hawk-eagle Welfare Management and Utilization as Display Animal in TMII Jakarta Bird Park
Abstrak: Ketertarikan pengunjung merupakan salah satu aspek yang menjadi pertimbangan bagi pengelola Taman Burung TMII dalam memanfaatkan elang jawa sebagai satwa peraga. Penelitian ini bertujuan menilai tingkat kesejahteraan elang jawa di Taman Burung TMII Jakarata dan menghitung nilai ekonomi elang jawa berdasarkan kesediaan membayar oleh pengunjung atas setiap bentuk atraksi elang jawa sebagai satwa peraga. Penelitian ini dilaksanakan di Taman Burung TMII Jakarta pada bulan Maret sampai April 2021. Metode yang digunakan adalah observasi lapang, wawancara, dan studi literatur. Hasil penelitian menunjukkan bahwa capaian implemetasi kesejahteraan elang jawa di Taman Burung TMII termasuk kedalam kategori sangat baik. Persepsi responden cenderung setuju mengenai pemanfaatan elang jawa sebagai satwa peraga. Nilai total WTP yang bersedia responden keluarkan terhadap interaksi elang jawa sebagai satwa peraga adalah sebesar Rp 57.050 dengan rataan jumlah pengunjung 8474 orang per bulan dengan total pendapatan ekonomi sebesar Rp 483.441.700/bulan., Visitors' interest is one aspect that becomes a consideration for the management of the TMII Bird Park in utilizing the Javan hawk-eagle as a display animal. This study aims to assess the welfare of the Javan hawk-eagle in the TMII Jakarta Bird Park and calculate the economic value of Javan hawk-eagle based on the visitors’ willingness to pay for every form of Javan hawk-eagle attraction as a display animal. This research will be conducted at the TMII Bird Park in Jakarta from March to April 2021. Methods used for data collection are field observations, interviews, and literature studies. The Results that the achievement of the implementation of the welfare of the Javan eagle in the TMII Bird Park is included in the very good. Respondents' perceptions tend to agree about the use of the Javan eagle as a display animal. The total value of WTP that respondents are willing to spend on the interactions and attractions of the Javan eagle as a display animal is Rp. 57,050. with an average number of visitor of 8747 people/month with a total economic income of Rp 483.441.700/month.
Keyword: Javan Hawk-eagle, welfare, willingness to pay (WTP) analysis

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