Judul: Analisis Struktur, Perilaku dan Kinerja Pertambangan Non-Migas di Indonesia
Abstrak: This study aims to analyze the structure, conduct and performance of the mining industry of non-oil and gas in Indonesia and the factors that influence the performance of the mining industry of non-oil and gas in Indonesia. The data used are secondary data, the concentration ratio data, output value, value of inputs, value added, wages, production value and export value of minerals are available in a catalog issued by Statistics Indonesia Central Bureau of Statistics, in 2003 until 2007. Descriptive method used to analyze the behavior. Quantitative methods was two approaches, the SCP approach to analyze the structure and performance of non-oil mining and to analyze the performance of non-oil mining Indonesia using fixed effect panel data models. Market structure that occurs in non-oil mining is visible from a tight oligopoly concentration ratio of the two largest companies of each mineral that was 93.08 percent. Market entry barriers seen from the average MES each mineral was at 77.94 percent means that the barriers to entry to this sector was high. Market behavior can be seen from the pricing strategy used by companies as price takers because the prices prevailing in the mining sector is the market price (the seller and buyer agreements) of the world. Product strategy used by the business is to improve the quality of the products that can compete in world markets, while the promotion strategy, the company issued a publication through print and electronic media that shows the quality of products and companies. Performance seen from the estimates that show all the variables (X-efficiency, exports, productivity and the concentration ratio of the two largest firms) made positive effect on rates of return (PCM). Variables that have the greatest influence improve performance (PCM) is the efficiency-X (XEFF) and exports (EX).
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Judul: The Influence of Good Corporate Governance on Financial Performance (Case Study on Coal Mining Companies Listed on the IDX)
Abstrak: Perusahaan pertambangan batubara dibangun untuk melayani dan menjaga kestabilan pasokan batubara domestik terutama pada PLTU sehingga dapat tercapai skala ekonomi yang besar. Agar hal tersebut terjadi maka perlu adanya tata kelola perusahaan yang baik guna untuk menciptakan nilai tambah ekonomis bagi pertumbuhan dan perkembangan perusahaan. Penelitian ini bertujuan untuk menganalisis perkembangan kinerja keuangan industry pertambangan batubara yang terdaftar di BEI dengan menggunakan economic value added serta menganalisis pengaruh struktur modal terhadap kinerja keuangan yang tergantung pada good corporate governance pada industri pertambangan batubara yang terdaftar di BEI Teknik pengambilan contoh pada penelitian menggunakan metode non- probability sampling dengan teknik purposive sampling. Penelitian ini mengambil sampel sebanyak 20 perusahaan pertambangan batubara yang terdaftar di BEI. Pengumpulan data dilakukan dengan teknik dokumentasi. Analisis data dilakukan dengan menggunakan MRA (Moderated Regression Analysis). Hasil penelitian menunjukkan bahwa variabel ukuran dewan direksi dapat memperlemah pengaruh negatif struktur modal terhadap kinerja keuangan sedangkan kepemilikan manajerial dapat memperkuat pengaruh negatif struktur modal terhadap kinerja keuangan. Terdapat beberapa hal yang dapat direkomendasikan berdasarkan implikasi manajerial dalam penerapan tata kelola yang baik yang dimoderasi oleh struktur modal terhadap kinerja keuangan yaitu ukuran dewan direksi dapat diperbesar menjadi kecenderungannya 5 orang berkompeten di bidangnya terutama bidang tambang produksi, keuangan, pengembangan, pemasaran dan manajemen risiko karena indikasi tersebut dapat memberikan komunikasi secara efektif terhadap dewan komsaris maupun komite audit guna mengoptimalkan pengawasan laporan keuangan.Perusahaan juga disarankan untuk meningkatkan persentase kepemilikan saham manajerial maksimal kisaran 60-70% kecenderungannya karena jika manajemen inti menginvestasikan dana nya ke perusahaan secara berlebihan maka porsi pembayaran dividen akan semakin besar juga., Coal mining companies are built to serve and maintain the stability of domestic coal supply, especially at PLTU so that large economies of scale can be achieved. In order for this to happen, it is necessary to have good corporate governance in order to create economic added value for the growth and development of the company. This study aims to analyze the development of the financial performance of the coal mining industry listed on the BEI using economic value added and analyze the effect of capital structure on financial performance which depends on good corporate governance in the coal mining industry listed on the BEI. The sampling technique in this study used a non-probability sampling method with a purposive sampling technique. This study took a sample of 20 coal mining companies listed on the IDX. Data collection is done by documentation technique. Data analysis was carried out using MRA (Moderated Regression Analysis). The results show that the variable size of the board of directors can weaken the negative influence of capital structure on financial performance while managerial ownership can strengthen the negative effect of capital structure on Financial performance. The results show that the variable size of the board of directors can weaken the negative influence. There are several things that can be recommended based on managerial implications in the implementation of good governance moderated by capital structure on financial performance, namely the size of the board of directors can be enlarged to tend to be 5 competent people in their fields, especially in the field of mining
Keyword: Economic Value Added, Good Corporate Governance, Kinerja Keuangan, MRA

Judul: Antibodi anti-idiotipe sebagai kandidat vaksin rabies, Anti-idiotype andibody as a rabies vaccine candidate
Abstrak: Anti rabies serum (ARS) called antibody 1 (Ab1) was used as the antigen to immunize laying chickens. Anti-Ab1 chicken immunoglobulins (IgY), the antiidiotype antibodies against rabies (Ab2) was isolated from chicken blood every week for ten weeks. The highest titer of Ab2 was found at the third week after the last immunization. Immunoglobulin Y was separated by means of ammonium sulfate precipitation, then dialyzed using PBS pH 8.0 for 24 hours at 2 – 8 oC and purified using affinity chromatography column for IgY lead the proteins molecules with 185,000; 95,000 and 49,000 dalton in weigth. Purified IgY was used to immunize New Zealand White rabbit and the antibody response (Ab3) was detected using Agar Gel Precipitation Test (AGPT). The Ab3 showed specific reaction with Ab2 as well as rabies virus. Interestingly, Ab2 and rabies virus express partial identity reaction. This lead the insight, that not all parts of Ab2 are internal image of rabies virus. The efficacy of Ab3 was detected using enzyme linked immunosorbent assay (ELISA) and indicated that the level of Ab3 titer is protective according to WHO standard (more than 0.5 IU/ml). The conclusion of this study is the anti-idiotype antibody can induce protective immune response against rabies virus and can be used as an alternative for rabies anti-idiotype vaccine. Key words : anti-idiotype vaccine, antibody, rabies
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