Judul: Dynamic model of Economic Growth with Variable Time Diskret Fiscal and Monetary Policy.
Abstrak: This paper is a scientific analysis on how fiscal and monetary policies affect economic growth (related to the amount of money and consumption). Model is essentially a budget constraint the household sector for the period of time. Budget constraints that made equality of conditions that describes the ability of households and the government to pay for the expenses / pay off debts. Objective function that optimized is a function which is the utility function of consumption and real money. Then conducted a qualitative analysis on the optimal trajectory for the influence of nominal interest rates and inflation on the dynamics of consumption and real money demand (the case of Bernoulli type utility function). Finally, I analyze the influence of several fiscal and monetary decisions on the optimal trajectory. The results form an objective function that is affected by the level of inflation. Keywords: Economic Growth, Fiscal Policy, Monetary Policy, Maximum Principles.
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Judul: Pengaruh Komposisi Pengeluaran Pemerintah dan Tingkat Pajak terhadap Pertumbuhan Ekonomi dalam Model Neoklasik
Abstrak: Long-term economic growth is a reflection of economic prosperity of a country. Government manages the fiscal policy to increase economic growth. The main purpose of this scientific work is to study the effect of government spending composition and tax rate, which are parts of fiscal policy, towards economic growth in long-term equilibrium or steady state. In the neoclassical model, the economy of a country will reach the steady state if the capital per capita reaches a stable level, with the assumption, government can influence the private capital accumulation through the tax rate, and influences the public capital accumulation through the government spending composition. The simulation section of this paper shows the effect of tax rate and government spending composition towards economic growth are not monotonic. Moreover, tax rate and government spending composition can optimize the rate of economic growth.
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Judul: Isolasi dan pencirian komponen hemotoksin bisa ular kobra
Abstrak: Bisa ular kobra (Naja sputatrix) diyakini sangat berkhasiat untuk menyembuhkan berbagai penyakit yang berhubungan dengan trombosis. Penelitian ini bertujuan mengisolasi dan mencirikan komponen hemotoksin bisa ular kobra dan pengujiannya dengan menggunakan sel darah merah sapi untuk aktivitas hemolisis dan fibrinolisis. Uji aktivitas dilakukan terhadap ekstrak kasar dan fraksi kolom bisa ular kobra. Fraksi kolom diperoleh dari pemurnian ekstrak kasar menggunakan kromatografi filtrasi gel (Sephadex G-75) untuk memperoleh fraksi-fraksi dengan serapan tertinggi pada panjang gelombang 280 nm. Pengukuran kandungan protein diukur serapan tertinggi pada ekstrak kasar dan fraksi kolom. Selanjutnya, penentuan bobot molekul pada fraksi aktif hasil uji aktivitas hemolisis dilakukan dengan cara elektroforesis SDS PAGE. Bisa ular kobra merupakan cairan pekat berwarna kuning dengan kadar air 28.22 %. Berdasarkan hasil uji aktivitas, bisa ular memiliki aktivitas hemolisis dan fibrinolisis sel darah merah sapi. Hasil elektroforesis fraksi 3 memiliki bobot molekul 189.2, 116.5, 54.7, 30.2, 27.2, 21.9, dan 16.7 (kD). Fraksi 4 memiliki bobot molekul 222.4, 189.2, 75.6, 54.7, 27.2, dan 21.9 (kD).
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