Judul: Analisis pemilihan dan penentuan wilayah kerja alat pengupas kacang tanah mekanis buatan Thailand pada tingkat kelompok tani di kabupaten Simalungun, Sumatera Utara
Abstrak: Sumatera Utara adalah penghasil kacang tanah yang potensial di Indonesia, dan Kabupaten Simalungun adalah penghasil kacang tanah yang sangat potensial di Sumatera Utara. Tingkat produksi di kabupaten Simalungun sudah tidak memungkinkan lagi dilakukan pengupasan secara manual. Keadaan ini menimbulkan masalah bahwa Kabupaten Simalungun membutuhkan alat pengupas kacang tanah mekanis yang tepat secara teknis maupun ekonomis.
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Judul: Analisis sistem penempatan alat perontok padi mekanis pada wilayah kerja penyuluh pertanian di Kabupaten Padang Pariaman, Sumatera Barat
Abstrak: Padi merupakan sumber bahan pangan utama di Indonesia dan diusahakan hampir di semua daerah. Program pemerintah untuk mempertahankan swasembada beras dilakukan dengan meningkatkan produksi padi seiring dengan pertam- bahan jumlah penduduk. Penekanan dalam peningkatan pro- duksi tersebut adalah memaksimumkan produksi per satuan luas tanam, karena kecenderungan penurunan luas lahan pertanian sebagai akibat perkembangan sektor nonpertanian. Penelitian ini menganalisis salah satu kegiatan pada penanganan pasca panen padi yaitu perontokan dan dilaksanakan di Kabupaten Padang Pariaman, Sumatera Barat. Tujuan dari penelitian ini adalah 1) menganalisis sistem pengoperasian alat perontok padi mekanis di lapangan, 2) menentukan jenis dan jumlah alat perontok padi mekanis yang optimum pada tingkat Wilayah Kerja Penyuluh Pertanian dan 3) menentukan sistem penempatan alat perontok padi pada WKPP dan pola alokasi perontokan padi di Kabupaten Padang Pariaman…dst
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Judul: Effects of Alcohol Consumption on Spatial Memory Performance and Neuron Complexity
Abstrak: Alcoholic beverages have always been a common drink all around the globe. The ethanol that is contained inside these alcoholic beverages have been known to have various negative side effects to the brain if consumed excessively. Other articles have claimed a certain moderate amount of alcohol consumption could have beneficial effects on the brain, but no exact concentration limit of consumption has been elaborated to cause damage in the hippocampal area. The objective of this research is examining the effects of alcohol towards neuron complexity and spatial memory performance. Four groups of mice were used as test subjects and were given the solution pre-orally. The first group is the control group which is given water, the second group was given 5% alcohol, the third group was given 15% alcohol, and the fourth group was given commercially sold alcoholic beverage. The mice were given said solutions in the span of 30 days. Spatial memory performance is observed by how a mice scores inside a Y-maze in the span of 5 minutes after 30 days of treatment. Neuron complexity is determined by the number of intersections of dendrites and the maximum angle of neurons inside the Dentate Gyrus (DG) and Cornu Ammonis (CA) region of the hippocampus which is observed by Golgi-Cox staining, photographed with optilab and then analyzed using the ImageJ application. alcohol consumption does not have any significant effect on spatial memory performance nor neuron complexity in the hippocampal area. These findings are not significantly different than the control group, possibly because the treatment is not chronic enough to trigger a significant physiological change.
Keyword: Ethanol, spatial memory, complexity, hippocampus