Judul: Beberapa Faktor yang Memengaruhi Keberhasilan Penggabungan Dua Perusahaan
Abstrak: Perusahaan akan membayar dividen kepada para pemegang saham sedemikian rupa sehingga besarnya akumulasi total pembayaran dividen yang dihitung berdasarkan nilai sekarang sesuai harapan pemegang saham. Dividen akan dibayarkan berdasarkan strategi barier, artinya jika surplus perusahaan telah melebihi optimal barrier keuntungan perusahaan, maka kelebihan dari barrier keuntungan tersebut semuanya akan dibayarkan sebagai dividen kepada para pemegang saham. Pembayaran dividen akan terhenti bila perusahaan mengalami kebangkrutan. Jumlah pendapatan bersih yang dihasilkan oleh gabungan dua perusahaan dimodelkan dengan gerak Brown bivariat dengan parameter drift μ dan ragam per satuan waktu. Fungsi surplus merupakan turunan model gerak Brown dan dari fungsi surplus didapatkan hasil tentang potensi untung dan rugi pada penggabungan dua perusahaan. Jika optimal barrier perusahaan gabungan lebih kecil dari hasil penjumlahan optimal barrier setiap perusahaan, untuk nilai koefisien korelasi  sama dengan satu, dan hasil kali dari nilai tingkat bunga  dengan koefisien ragam dari proses agregat pendapatan bersih setiap perusahaan pada tingkat suku bunga kurang dari 6,87%, maka merger akan mendapatkan keuntungan.
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Judul: Memaksimumkan Nilai Harapan Kekayaan Investor dengan Strategi Investasi Saham Dua Perusahaan yang Bergabung
Abstrak: Stock is the most popular form of investment. Its price changes dynamically and randomly. It is assumed that the price moves according to Brownian motion. Investors can earn more profit when a company merges with another one. In case of a merger of two companies, there is a linear combination of two stock prices that change according to Brownian motion. The objective of this research is to determine the expected value of investor’s wealth with a certain strategy. The result is presented in a theorem, which describes the investment strategy according to the company’s stock return at certain time. It has been proved that the investor can have two possibilities, i.e. the investor does not invest in either companies, or the investor invest only in one company. The expected value of wealth will be maximum if the allocation of investment in both companies are maximum.
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Judul: Kandungan Mineral Kalakai (Stenochlaena Palustris) yang Tumbuh pada Jenis Tanah Berbeda serta Dimasak dengan Cara Berbeda
Abstrak: Kalakai (Stenochlaena palustris) is one of the local vegetables commonly available in the Palangkaraya. Previous research states that kalakai has a relatively high content of nutrients like beta carotene, folic acid, as well as some important minerals. Local communities (Dayak people) in Central Kalimantan and surrounding used to consume kalakai, especially mothers after child-birth.Kalakai has been recognized as an important vegetable to boost milk supplies for mothers who are breast-feeding. Kalakai was unique, because it can grow on various soil types, even on nutrient-poor soil. Therefore, this research aims to determine the effect of different types of soil on the mineral content of kalakai, and influence of processing on the mineral content. The sampling was conducted at five sites with different soil. They are peaty soil, sulphate acid soils, quartz sand soil, and alluvial soil in January and February. All of the samples were given four different treatments, boiling, frying, steaming and fresh (no treatment). Samples were analyzed moisture, ash, and minerals. Analysis of mineral content using Atomic Absorption Spectrophotometer (AAS) Perkin Elmer 1100B. The type of soil affect the content of minerals in the tip of kalakai leaf. It which grown on peaty soil containing a rather high of mineral Mg, Ca, Zn, Mn, which continuously reach to 5160, 6399, 134.6, 158 ppm, while Fe, Cu, and Al with a low successive level of 117.2, 4.5, 20.5 ppm. The pH of peaty soil in this study was 6.08, allegedly still quite a lot of minerals which can be absorbed by plants. Kalakai which grown on acid-suphate soil contains high Fe and Al i.e. 336.4 and 76.4 ppm. The high micro-mineral Al and Fe in acid-sulphate soils due to soil pH is low. Kalakai grown on quartz sand soil containing high minerals Ca, Cu, and Al, namely 6299, 25.1, and 58.1 ppm, respectively, while other minerals such as Mg, Fe, Zn, and Mn were low, it implies in the amount of 4598, 65, 86.8, and 65.9 ppm, respectively. Kalakai grown on alluvial soil is found that the content of Cu quite high, i.e. 7.26 ppm, whereas Fe, Mn, and Al content were low respectively 52, 63.4, and 5.3 ppm. Relatively low mineral content on kalakai of quartz sand and alluvial soil allegedly because of the low element nutrients contained in these soil types. Results of analysis of total mineral or ash content in various ways of cooking show that kalakai has a different total mineral content. Total minerals from the lowest to the highest were kalakai cooked by boiling, frying, steaming and fresh or without treatment of cooking. Cooking process give an effect to mineral content of kalakai. The process of boiling is the highest role in decreasing Mg (21-68%), Cu (11-60%), Ca (39%) and Mn (8- 38%). Other minerals such as Zn and Fe decreased by frying in the amount of 14-37% and 9-43%, respectively. The whole minerals, except Cu, still in the recommended daily intake limit, if assumed that one portion of kalakai is 50 gram dry basis.
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