Judul: Analisis Faktor-Faktor yang Mempengaruhi Struktur Modal Perusahaan Sektor Pertambangan yang terdaftar di Bursa Efek Indonesia
Abstrak: Tingkat struktur modal yang merupakan bagian dari keputusan pendanaan yang merupakan salah satu faktor penting dalam meningkatkan nilai perusahaan. Keputusan mengenai struktur modal yang optimal harus mempertimbangkan perimbangan antara tingkat risiko dan manfaat. Tujuan penelitian ini adalah menganalisis pengaruh antara ukuran perusahaan (SIZE), pertumbuhan aktiva (GROWTH), struktur aktiva (STR_A), profitabilitas (ROA) dan pertumbuhan penjualan (SALES) terhadap struktur modal (LDER) baik secara simultan maupun parsial pada perusahaan sektor pertambangan. Sampel yang digunakan dalam penelitian ini adalah perusahaan sektor pertambangan yang terdaftar di Bursa Efek Indonesia periode 2007 sampai dengan 2011. Sampel diambil dengan menggunakan porpose sampling method. Metode analisis yang digunakan adalah regresi linier dengan toleransi tingkat kesalahan (α) sebesar 5%. Hasil penelitian menyatakan bahwa SIZE, GROWTH, STR_A, ROA dan SALES secara bersama-sama berpengaruh terhadap LDER dengan Adjusted R2 sebesar 37,1%. Hasil penelitian secara parsial menunjukkan bahwa variabel SIZE, ROA dan SALES masing-masing berpengaruh negatif dan signifikan terhadap LDER, variabel GROWTH berpengaruh positif dan signifikan terhadap LDER sedangkan variabel STR_A memiliki arah hubungan yang negatif tetapi tidak berpengaruh signifikan terhadap LDER.
Keyword: 

Judul: Analisis Faktor-faktor yang Memengaruhi Struktur Modal pada Sektor Pertanian yang Terdaftar di Bursa Efek Indonesia.
Abstrak: Penelitian ini bertujuan untuk menganalisis faktor determinan apa saja yang memengaruhi keputusan struktur modal perusahaan yang terdaftar dalam Sektor Pertanian di Bursa Efek Indonesia periode tahun 2012 hingga 2016. Sampel dalam penelitian ini seluruhnya berjumlah 14 perusahaan. Penelitian ini mengunakan fixed effect model yang diolah dalam program Eviews. Dalam penelitian ini ditemukan bahwa variabel pertumbuhan, likuiditas, struktur aset diketahui tidak memiliki pengaruh terhadap struktur modal perusahaan. Profitabilitas dan ukuran perusahaan diketahui memengaruhi struktur modal dimana profitabilitas berpengaruh secara negatif dan ukuran perusahan berpengaruh secara positif.
Keyword: likuiditas, perusahaan, pertumbuhan, profitabilitas, struktur aset, struktur modal, ukuran perusahaan

Judul: Development of DNA Vaccine Encoding Glycoprotein of Koi Herpes Virus Using Local Isolate.
Abstrak: The aim of this research was to develop DNA vaccine of Koi Herpesvirus in carp. Glycoprotein gene originated from ORF 25 KHV virus that is 1.8 kbp in size, is a potential gene in DNA vaccine construction. The sequencing and similarity analysis of the gene using BLAST software showed that this gene is a GP25 gene and was found to be very similar (99%) to GP25 of KHV virus from the USA and Israel. When this GP25 gene was ligated with pGEMT Easy (pT, 3 kbp in size) vector, plasmid size was increasing up to 5 kb. Following this, a digestion of pT-GP25 plasmid using Sal I enzyme was applied resulted in a GP25 fragment (1.8 kbp). Subsequently, pAct-D6 with a size of 8.5 kbp was also cut using the same enzyme to eleminate a D6 gene with a size of 1.6 kbp. GP25 gene was then ligated with pAct resulted a pAct-GP25 plasmid with a size of 8.8 kbp. As there was only one restriction site applied, ligation can be occurred in two different directions. Thus, in order to determine the plasmid with the desired direction PCR analysis was carried out, and plasmid with the right direction was the one that sized approximately 2.1 kbp (no. 6, 17 and 20). High level of GFP gene expression was detected in all tissues analyzed, i.e. kidney, gil, spleen, and muscle 24 hours after injection which indicated that β-actin promoter of Japanese medaka could be active in common carp. Although not as high as on 24 hours, expression was still detected until day 7 and disappeared after day 28 post injection indicating that pAct-GFP can be remained and β-actin promoter of Japanese medaka can be active in muscle, gills and kidney at least a week after injection. The result of RT-PCR analysis on pAct-GP25 injected common carp showed that GP25 gene expression can be detected 14 days after injection in all tissues observed. The expression level differences between GFP and GP25 genes possibly related to the primer sensitivity on annealing process to cDNA template and the size of PCR targeted DNA fragment, as smaller PCR targeted product will be easier to be amplified than a bigger one. The length of PCR targeted DNA with GP25 primer was 1.8 kbp whereas GFP gene was 0.6 kbp.The challenge test on common carp results showed that all unvaccinated and negative control (not infected with KHV) was alive until the end of the experiment. Whereas, the survival of fish vaccinated with a dose of 12.5 was ranged from 60.9 and 96.7%. In relation to the activity of β-actin promoter that was used in this DNA vaccine, gene expression was occured 24 hours after vaccination and remained until 2 weeks. The control fish that was not injected by GP25 showed no GP25 expression either in the observed tissues or organs and resulted in a lower survival, i.e. 23.3%. The challenge test results has indicated that the fish vaccinated with GP25 at doses of 7.5 and 12.5 μg/100μL were able to produce KHV glycoprotein in their body which would be
Keyword: