Judul: Jangka Reproduksi Wanita di Suku Semendo, Sumatera Selatan.
Abstrak: Fase pubertas merupakan fase transisi dari masa anak-anak menuju dewasa. Siklus pertama menstruasi atau menarche digunakan untuk menentukan waktu pubertas seorang wanita. Menstruasi merupakan pendarahan normal dari bagian vagina yang terjadi sebagai bagian dari siklus bulanan wanita. Menopause atau tidak mengalami menstruasi selama 12 bulan mengindikasikan fase akhir reproduksi. Menarche dan menopause merupakan dua komponen penting dalam sistem reproduksi wanita. Penelitian sebelumnya melaporkan bahwa adanya variasi usia menarche dan menopause pada wanita di yang tinggal di daerah pedesaan dan perkotaan. Semendo merupakan salah satu populasi yang tinggal di daerah pedesaan Sumatera Selatan, Indonesia. Metode status quo dan recall digunakan untuk menentukan usia saat menarche dan usia saat menopause. Semua data dianalisis menggunakan metode Probit Generalized Linear Models yang diimplementasikan dalam program R. Jangka reproduksi wanita di Suku Semendo yaitu 33.0 tahun. Jangka reproduksi ditentukan berdasarkan usia saat menarche dan usia saat menopause. Rata-rata usia saat menarche di Suku Semendo yaitu 13.8 tahun. Sedangkan rata-rata usia saat menopause yaitu 46.8 tahun.
Keyword: menarche, menopause, reproduksi

Judul: Jangka Reproduksi Wanita Suku Baduy, Kabupaten Lebak, Provinsi Banten
Abstrak: Humans grow and develop into a child, adolescent, adult, and aging. Condition who switch from the children phase to teen or young adult phase is called puberty. First menstruation (menarche) in women marking the occurrence of puberty. The women reproductive phase begin with menarche and end at the time of menopause. Menopause is a condition which there is no ovulation and the menstrual cycle. The lead time from puberty until menopause is called the reproductive period of women. Knowing the reproductive period of women is very close with to the nature of women to become pregnant. Baduy tribe was chosen as the comparative with previous studies. Due to, they live outside of alienating themselves from society, the marriage happens his fellow man, not getting an education, and still maintain customs. This study used longitudinal method, the status quo method, and memory method. Data was collected from interviews. The data was processed using the Probit GLM (Generalized Linear Models) in R program. The result showed that menopausal age was 48.64 years, menarche age was 14.97 years (year 1976). The reproductive period was limited by the age of menarche and menopause obtained for 33.67 years.
Keyword: 

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
Keyword: