Judul: Efek Pemberian Kunci Pepet dan Asam Gelugur terhadap Stamina dan Kadar Asam Laktat Darah Tikus Obes
Abstrak: Obesitas menjadi salah satu faktor menurunnya stamina. Hal ini menyebabkan perlu adanya upaya untuk meningkatkan stamina. Kunci pepet dan asam gelugur adalah tanaman yang mengandung senyawa yang diduga dapat meningkatkan stamina. Tujuan penelitian ini adalah melihat efek pemberian kunci pepet (Kaempferia rotunda) dan asam gelugur (Garcinia atroviridis) secara akut dan kronis terhadap stamina dan kadar asam laktat darah tikus (Rattus norvegicus) obes. Penelitian ini menggunakan 20 ekor tikus obes yang terbagi menjadi 4 kelompok perlakuan, yaitu tikus yang diberikan akuades sebagai kontrol, dan kombinasi asam gelugur dan kunci pepet dengan dosis 115 mg/200 g BB, 345 mg/200 g BB, dan 1036 mg/200 g BB. Pengukuran stamina dilakukan dua kali dengan melihat durasi waktu renang. Pengukuran kadar asam laktat darah dilakukan sebanyak empat kali yaitu, sewaktu istirahat dan lelah setelah pemberian perlakuan secara kronis, sewaktu istirahat dan lelah setelah pemberian perlakuan secara akut. Data yang diperoleh dianalisis dengan metode one-way Analysis of Variance (ANOVA) dilanjutkan dengan uji Duncan. Hasil menunjukkan bahwa, pemberian asam gelugur dan kunci pepet dengan dosis 1036 mg/200 g BB cenderung lebih efektif untuk meningkatkan stamina setelah diberikan secara kronis, namun belum mampu untuk meningkatkan stamina setelah diberikan secara akut. Pemberian kunci pepet dan asam gelugur dengan dosis 345 mg/200 g BB cenderung lebih efektif untuk menahan kenaikan kadar asam laktat darah setelah direnangkan dan dosis 1036 mg/200 g BB cenderung lebih efektif untuk menurunkan akumulasi asam laktat setelah direnangkan.
Keyword: asam gelugur, asam laktat, kunci pepet, stamina

Judul: Efek Pemberian Asam Gelugur (Garcinia atroviridis) dan Kunci Pepet (Kaempferia rotunda) terhadap Fungsi Ginjal Tikus Obes.
Abstrak: Kombinasi sam gelugur dan kunci pepet diketahui dapat digunakan sebagai pelangsing. Penelitian ini bertujuan untuk menguji efek pemberian asam gelugur dan kunci pepet sebagai obat pelangsing terhadap kadar kreatinin serum serta gambaran histopatologi ginjal tikus. Sebanyak 35 tikus obes dibagi menjadi 7 kelompok perlakuan yaitu diberikan aquades 0.05 mg/kg BB (KN), orlistat 3 mg/kg BB sekali sehari (KP), dan kelompok lainnya diberikan kombinasi asam gelugur dan kunci pepet 115 mg/200 g BB sekali sehari (D1), 345 mg/200 g BB sekali sehari (D2), 1036 mg/200 g BB sekali sehari (D3), 115 mg/200 g BB dua kali sehari (D4), dan 345 mg/200 g BB dua kali sehari (D5). Sediaan asam gelugur dan kunci pepet diberikan secara peroral selama 30 hari. Kadar kreatinin tikus diukur pasca 30 hari perlakuan. Hasil pengukuran kadar kreatinin serum dan pengamatan preparat histopatologi ginjal menunjukkan adanya penurunan fungsi dan kerusakan ginjal. Hal ini ditandai dengan peningkatan kadar kreatinin serum dan perubahan histopatologi berupa nekrosis tubulus dan endapan protein seiring dengan meningkatnya jumlah dosis yang diberikan.
Keyword: asam gelugur, endapan protein, kreatinin, kunci pepet, nekrosis sel

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