Judul: Pengaruh Kebijakan Fiskal Terhadap Pertumbuhan Ekonomi Dalam Model Neoklasik
Abstrak: Pertumbuhan ekonomi jangka panjang merupakan pertumbuhan output riil perekonomian suatu negara. Pemerintah dapat mengatur kebijakan fiskal untuk meningkatkan pertumbuhan ekonomi. Tujuan karya ilmiah ini ialah menganalisis pengaruh kebijakan fiskal yang berupa tingkat pajak dan komposisi pengeluaran pemerintah terhadap output per kapita saat kondisi steady state dan pertumbuhan ekonomi pada masa transisi. Model neoklasik suatu perekonomian akan mencapai kondisi konstan apabila modal per kapita mencapai tingkat yang stabil dan fungsi kesejahteraan sosial maksimum. Bagian simulasi karya ilmiah ini menunjukkan bahwa pengaruh tingkat pajak dan komposisi pengeluaran pemerintah terhadap pertumbuhan ekonomi adalah tidak monoton. Selain itu, nilai pajak dan komposisi pengeluaran pemerintah dapat mengoptimumkan nilai output per kapita dan tingkat pertumbuhan ekonomi.
Keyword: kebijakan fiskal, model neoklasik, pertumbuhan ekonomi

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: Molecular Identification of Mutant Candidate of Gα Gene from Soybean cv. Slamet Based on mRNA.
Abstrak: Heterotrimeric G proteins composed of α, β, and γ subunits, are bound to the inside surface of the cell membrane. Gα proteins will be activated by extracellular stimuli (biotic or abiotic stress). It is presumably Gα proteins playing an important role in aluminum (Al)-stress tolerance. Soybean cv. Slamet was considered as a tolerant plant to Al and has a single copy of Gα gene. Gamma irradiation to soybean cv. Slamet seeds caused a random chromosomal mutation of second generation plants (designated as M2). The Gα mutant candidates were selected based on stomatal closure in the daylight and dwarf. Gα mutant candidates M4, number 338 and 103 have severe root cell tissues damage compared to non mutant ones. Plant number 338/3S1.174/12/14 (M4) and 103/3S3.103/8/5/1/4 (M5) have a Gα gene mutation at the U3-L4 sequences (exon 5 – exon 11). Whereas, plant number 344/3S1.196/14/1/8 (M4) is assumed as Gα gene mutant. All of those plants were replanted until sixth generation. The candidates of Gα mutant selected have more than fifty percent of closed stomata and dwarf. Four number of M5 plants and three number of M6 plants were selected for Gα mutant identification based on mRNA analysis. The fifth generation plant number 344/3S1.196/14/1/8/7 were decreased its Gα gene expression at L5-L4 sequences (exon 7 – exon 11). The M6 generation plant number 344/3S1.196/14/1/8/7/5 have mutation in Gα gene at L1-L3 sequences (exon 2 – exon 6). A major contributing factor to decreased expression levels of Gα gene may be due to mutation of Gα gene promotor. Three other of M5 plants were assumed as Gα mutant. M6 plant number 103/3S3.103/8/5/1/4/8 has mutation at L3-L2 sequences (exon 6 – exon 15) and number 103/3S3.103/8/5/1/4/9 has mutation at U3-L4 sequences (exon 5 – exon 11). The decreasing of gene expression caused by mutation in those plants was indicated by the less pronounced DNA bands on agarose gel than that of non mutant plants.
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