Judul: Keefektifan komunikasi penyuluh dan petandu dalam kegiatan SLPHT di Kabupaten DT II Sukabumi
Abstrak: Sekolah Lapang Pengendalian Hama Terpadu (SLPHT) merupakan metode baru" dalam pemasyarakatan PHT di kalangan petani dengan sawah sebagai sarana Selajarnya. Metode ini berusaha mengembangkan kemampuan petani dalam mengendalikan OPT berdasarkan konsep PHT, sehingga dapat menghindari penggunaan pestisida yang berlebihan. Pemasyarakatan PHT melalui SLPHT akan memerlukan komunikator yang tidak hanya menguasai aspek-aspek komunikasi tetapi juga dapat mengelola SLPHT ini sesuai dengan garis-garis yang telah ditentukan. Pemandu diharapkan dapat menjalankan fungsi tersebut.
Keyword: Communication, Pengendalian Hama Terpadu, Penyuluh

Judul: Perilaku pemanfaatan saluran komunikasi dalam penerapan teknologi PHT dikalangan petani Kabupaten Sukabumi
Abstrak: Konsep PHT merupakan inovasi baru yang memerlukan upaya untuk memasyarakatkannya di kalangan petani. Pada awalnya pemasyarakatan PHT di kalangan petani dilakukan melalui jalur penyuluhan pertanian yang di tingkat lapangan dikoordinasikan di Balai Penyuluhan Pertanian (BPP). Melalui Program Nasional PHT, maka dimulailah pemasyarakatan PHT melalui kegiatan Sekolah Lapangan Pengendalian Hama Terpadu (SLPHT).
Keyword: Communication, saluran komunikasi, teknologi PHT

Judul: The Effects of Variance of Interest rate to Variance of Annuity Future Values
Abstrak: Time value of money is a concept that refers to the difference of the value of money due to time difference. The value of money for present time would not be the same as the value of money in the future. The value of money for present time is called as Present Value (PV) of the money and the value of money for future time is called Future Value (FV) of the money. Determination the value of money, for present and future time, depends on the time and rate of return. The value of money is determined by several factors such as inflation, fluctuation of interest rates, and government policy in securities and taxation. Due to fluctuation of the value of money we need a FV formulation, it is useful for knowing whether an investment can be profitable or not, and this information is useful also in budget analysis. Annuity is defined as a series of payments made for a specific period. The payment, fixed or varied, can be made at the beginning or at the end of the period. Annuity paid at the beginning of the period is called annuity-due and annuity paid at the end of the period is called immediate annuity-certain. The accumulated value of the annuity after few years later is called as a final value or a future value. Burnecki et al. (2003) have discussed about the FV of a fixed-rate annuity in which payments are made according to the arithmetic or geometric series. They have also examined FV for annuities in which payments are made according to arithmetic or geometric series with random rates of interest. This paper examines FV for annuity-due in which payments are made according to arithmetic or geometric series with interest rates as a random variable, which is normal distribution ,  . Future value formula is expressed in recursive form. FV for annuity-due which payments are made according to the arithmetic or geometric series with random rates of interest is calculated by theoretical way and simulation way. The random rates of interest is denoted as k k i  i  , where k i an independent random variable; i is a constant and k  is a random variable which has normal distribution ,  . By using the determined parameters, a sequence of random rates of interest are generated for theoretical calculation. Meanwhile for the simulation, the random rates of interest is generated 1000 times for the simulation. The generated data give mean value, variance, and standard deviation. Moreover, error of mean value, variance, and standard deviation from the theoretical and simulation results are calculated. Error calculation uses Symmetric Mean Absolute Percentage Error (SMAPE). The smaller the value of SMAPE is the more accurate the simulation. The interest rate variances are varied from 0.000036 to 0.0001 to study the relationship between variance of rates of interest and variance of future value. The theoretical and simulation results show that when the variance of random rates of interest increases, then the variance of FV increases linearly. FV of the annuity-due in
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