Judul: Peranan Sanrego (Lunasia amara Blanco) dalam Memperpendek Siklus Ranggah dan Meningkatkan Libido Seksual Rusa Timor (Cervus timorrensis de Blainville) Jantan.
Abstrak: The aims of the research are :1) to explore the role of sanrego in decreasing antler cycle stags and increasing timor stags libido sexual, 2) to observe the appropriate doses of sanrego and 3) to know the sexual behaviour of timor stags. Three difference doses of sanrego ware tested to the timor stags, i.e.6.000 mg, 8.000 mg and 10.000 mg per individual respectively. The role of sanrego in increasing libido sexual was analyzed using completely randomizet design, which was carreid out by significan difference least test. The trials showed that there were significant different (a < 0,05) in increasing libido sexual of timor stags, which was shown by its sexual behavior, i.e. approaching of famale (14,7±9,4), smelling the vulva (31,8±30,1), crying stage (10,7±5,0), wallowing in a mudhole (6,7±2,8), scrubing its velvet (8,2±5,0), agonistic (12,6±9,4) and mounting female (11,6±13,8), and there was no significant different in copulation activity (0,1±0,3). The use of sanrego of 10.000 mg doses gave the highest sexual, which was shown by the appearance shedding (4 th day), activities highest sexual, the longest performance of sexual activities (10 days) and the respon to sexual appearance (4th day). The sexual behaviour of timor stags was defined by: 1) approaching and driving the estrus female, wallowing, scrubing its velvet, 2) kissing of estrus female, agonistic to other males, kissing urine of estrus female and crying stage 3) erection, 4) mounting 5) intromision, 6) ejaculation, 7) refraktorinese. The total sexual activities was appeared within nine days.
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Judul: Perilaku Rusa Timor (Rusa timorensis de Blainville, 1822) Betina di Penangkaran Akibat Pemberian Tabat Barito (Ficus deltiodea Jack)
Abstrak: Timor deer is one of deer species which potential to be developed. Captivity is one of timor deer utilization which aim to maintain the population of timor deer as protected species. However, there are various issues related to its reproduction so that reproductive technology is required to improve female timor deer reproduction by stimulating sexual desire of female timor deer using natural materials that are aphrodisiac, one of them is tabat barito. The aim of this research is to determine the influence of giving tabat barito with various doses against daily activity and sexual behavior of female timor deer. There are 4 tabat barito doses which are given for 28 days. The doses are 0 mg, 4000 mg, 5000 mg and 6000 mg. The result of this research indicates that different dose which given not significantly influence the daily activity and sexual behavior. However, the 6000 mg dose can stimulate female deer estrus so copulation happened.
Keyword: tabat barito., sexual behavior, female timor deer, captivity

Judul: Penentuan Nilai Eigen dan Vektor Eigen dari Matriks Tridiagonal 2-Toeplitz dengan Pendekatan Polinomial Chebyshev
Abstrak: The eigenvalues and eigenvectors of a matrix can be determined by finding its characteristic polynomials. The characteristic polynomials of a tridiagonal 2-Toeplitz matrix is shown to be closely connected to polynomials which satisfy the Chebyshev recurrence relationship. If the order of the matrix is odd, then the eigenvalues are found explicitly in terms of the Chebyshev zeros and the eigenvectors are found in terms of the polynomials satisfying the recurrence relationship. For even ordered matrices, the situation is more complicated. The problem in these cases is that although the Chebyshev recurrence formula is still applied, its initial values are not generating Chebyshev polynomials
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