Judul: Pengaruh Pemberian Minuman Cincau Hijau (Premna oblongifolia Merr.) terhadap Penurunan Tekanan Darah pada Wanita Dewasa Penderita Hipertensi Ringan dan Sedang
Abstrak: This study was aimed to analyze the effect of green grass jelly drink (Premna oblongifolia Merr.) on reducion of blood pressure among adult women suffered from mild and moderate hypertension in Central Bogor Region. There were two intervention formulas, namely Formula A consisted of green grass jelly and brown sugar and Formula B consisted of green grass jelly and non calori brown sugar. Subjects consisted of 25 adult women aged over 45 years old and divided into 5 groups, namely one control and four experimental groups. Formula A was intervented into 2 groups, P1 (received intervention everyday) and P2 (intervention every two days). Formula B had the same pattern with the Formula A (P3 and P4). The result shows that the systolic blood pressure of P1 decreased significantly (p<0.05) by 20-25 mmHg. In addition, the diastolic blood pressure on groups of P1 and P3 decreased significantly (p<0.05) by 14-15 mmHg after the two weeks intervention.
Keyword: adult women., flavonoid, hypertension, green grass jelly drink (Premna oblongifolia Merr.), Bogor Agricultural University (IPB)

Judul: Pengaruh Intervensi Jelly Cincau Hijau (Premna oblongifolia Merr.) terhadap Profil Lipid Pria Perokok Dewasa
Abstrak: Smoking habit is strongly associated with changes in lipid profile. Functional beverages such as green grass jelly can be used as an alternative to improve lipid profile. The general objective of this study was to analyse the effect of green grass jelly intervention on lipid profile of adult male smokers. This study used an experimental with pre-post test control design. Subjects were divided into four groups, consisting of 1) Control (K) did not received any intervention; 2) P1 received intervention for 14 days; 3) P2 received intervention for 21 days; and 4) P3 received intervention for 28 days. Subjects of the intervention groups were asked to consume 200 grams of green grass jelly per day. The results showed that there was a significant reduction in total cholesterol and LDL cholesterol levels and also a significant increase in HDL cholesterol levels (p<0.05) of subjects in group P1, P2, and P3 after the intervention. The results of ANOVA test on triglyceride levels showed that there was no significant difference in triglyceride levels among subjects of all groups.
Keyword: Bogor Agricultural University (IPB), lipid profile, green grass jelly, smoking

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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