Penelitian ini bertujuan Untuk mengetahui pengaruh Pengenaan PPN terhadap daya beli konsumen barang elektronik di pasar Batusangkar. Penulis menggunakan jenis penelitian lapangan (field research) yang dilakukan di pasar Batusangkar pada toko elektronik dengan menggunakan pendekatan Deskriftif Kuantitatif. Populasi dalam penelitian ini adalah konsumen barang elektronik di pasar Batusangkar, pengambilan sampel dilakukan dengan teknik random sampling, jumlah sampel ditentukan sebanyak 50 orang dari jumlah polulasi sebanyak 100 orang. Teknik pengumpulan data yang dipakai adalah dengan menggunakan kuesioner. Teknik analisis data yang digunakan untuk menjawab hipotesis dalam penelitian ini adalah teknik analisis regresi linier sederhana, sehingga dapat diketahui bahwa adanya pengaruh pajak pertambahan nilai terhadap daya beli konsumen barang elektronik di pasar Batusangkar. Hal ini dibuktikan dengan koefisien korelasi antara Pajak Pertambahan Nilai dengan Daya Beli sebesar 0,812 yang bearti korelasi positif dan mempunyai hubungan yang sangat kuat, Artinya jika harga naik maka daya beli konsumen akan menurun mengakibatkan pajak yang dikenekan berupa PPN juga akan menurun.Kata Kunci : Pajak Pertambahan Nilai, Daya Beli Konsumen

639 Laksono, R.A. dan • Y. Irawan: Pengaruh sistem tanam dan tinggi genangan air terhadap produktivitas tanaman padi kultivar Mekongga di Kabupaten Karawang Laksono, R.A. • Y. Irawan Pengaruh sistem tanam dan tinggi genangan air terhadap produktivitas tanaman padi kultivar Mekongga di Kabupaten Karawang Effect of planting system and flooding on productivity of paddy cultivar Mekongga in Karawang DistrictAbstract. The program that increase food security is government target to supply national food needs. Rice is the staple food for most of Indonesia's population whose productivity must be increased. This study aims to obtain planting system and flooding that is able to provide the highest productivity in Mekongga rice cultivar in Karawang district. The research was conducted in the rice fields of Tanjung Bungin Village, Pakisjaya, Karawang Regency, West Java Province. It is 5 meters above sea level. This study was conducted from September 2016 until December 2016. The research method used was experiment method and experimental design used was Randomized Block Design, with nine treatments and repeated three times. There were combination of planting system and flooding for treatments. The results showed that planting system and flooding significantly affect crop height at 42, 56, and 70 day after planting (dap). Number of tillers at 42, 56, and 70 dap, number of panicles, number of grain per panicle, percentage of filled grain, and dried milled grain weight. Legowo 4: 1 planting system and 5 cm flooding gave highest yield of dried grain of 15.2 kg / plot or equal to 7.20 ton / ha.

Traveling around a city and making transit in certain areas is called a city tour. Furthermore, determining the optimal city tour route can be considered as a traveling salesman problem. There are many kinds of algorithms to solve this, one of which is the Genetic Algorithm (GA). In developing the City Tour application, a platform is needed to be taken to various places anywhere and anytime. Finally, we developed an application that runs on mobile devices. This application is built on the Android platform so that its use can be more efficient. Furthermore, it can be concluded that the GA applied to the Android-based City Tour Application is reliable to determine city tour routes; this is evidenced by comparing GA with the brute force method, where GA provides optimum results with less running time.

Objective: To evaluate the effect of testosterone replacement on epithelial and stromal changes of prostatic lobes in castrated wistar rats. Material & Method: The subjects were 30 wistars equally assigned to castrated + testosterone replacement group (n = 10), castrated group (n = 10), and control group (n = 10). After 60 days, prostatectomy was performed in all rats and prostatic specimens were analyzed by haematoxylin eosin (HE) staining under microscope. Semi–quantitative analysis was performed by evaluating growth of epithelial structure and loss of fibromuscular stroma. Results were analyzed using ANOVA test method for normally distributed data. The statistical analysis was performed using SPSS. Results: There was significant reversibility in castration + testosterone replacement groups in all prostatic lobes compared with castration groups (p = 0,010).There were 5 rats showing normal structure of prostate gland compared to control groups in all prostatic lobes (50%), and 5 showed hyperplasia in all prostatic lobes (50%). Conclusion: Testosterone deprivation can cause prostatic atrophy. Dominant atrophy was found in ventral and lateral lobes. Testosterone replacement can prevent atrophy in all prostatic lobes regardless of specific prostatic lobes.Keywords: Testosterone deprivation, testosterone replacement, prostatic lobes.

Cocoa pod borer (Conopomorpha cramerella L.) is a major pest of cocoa, including in Southeast Sulawesi and is able to reduce yields up to 90%, especially in the dry season. So far, farmers control these pests through the application of chemicals with high doses so that it has a negative impact on the environment. The aim of this research was to obtain a package of environmentally friendly C. cramerella pest control technology which was carried out at the center of Watarema Village, Lambuya District, Konawe Regency in 2019. The study was arranged using a randomized block design (RCBD) with 6 treatments, namely: (a). Beauveria bassiana, (b). Citronellal eleostreric myuric acid lauric acid, (c). Trichoderma asperellum, (d). A combination of garlic extract and clove oil, (e). Lighting + ultrasonic sound waves, and (f). lambda cyhalothrin thiametoxam as a control. All treatments were repeated 5 times on Sulawesi 1 cocoa clones, aged 10 years. Observation data were analyzed using analysis of variance and continued with the mean value test using Duncan's multiple range at the 0.05 level. The results of preliminary observations indicate the percentage of pest attacks at the study site ranged from 40-90%. The results showed that the lighting treatment at night accompanied by the use of ultrasonic sound produced the lowest percentage and intensity of attacks, respectively 7.69% and 7.85% and were significantly different from controls, although not significantly different from other treatments. Decreasing the percentage and intensity of C. cramerella pests can improve the health of cocoa beans and fruit. This is able to increase the number of fruits and seeds, dry seed weight and weight per 100 seeds, seed yield, and cocoa productivity of 730.19-805.35 kg / ha and reduce cocoa yield loss of 432.87-511.55 kg / ha .