Judul: Pengaruh Struktur Modal terhadap Kinerja Keuangan pada Dual Banking System di Indonesia.
Abstrak: Struktur modal bank berkaitan langsung dengan risiko dan tingkat pengembalian. Penelitian ini bertujuan untuk menganalisis pengaruh struktur modal terhadap kinerja keuangan pada dual banking system di Indonesia periode triwulan I 2013 sampai dengan triwulan III 2019 meliputi 9 Bank Umum Konvensional (BUK) dan 9 Bank Umum Syariah (BUS) sebagai sampel penelitian. Metode penelitian adalah regresi data panel dengan Return on Asset (ROA) dan Return on Equity (ROE) sebagai variabel dependen, Equity to Total Asset Ratio (EAR), Debt to Equty Ratio (DER), ukuran perusahaan, dan pertumbuhan ekonomi sebagai variabel independen. Hasil analisis data menunjukkan EAR, DER, dan pertumbuhan ekonomi berpengaruh positif dan signifikan terhadap ROA dan ROE Bank Umum Konvensional. Pada Bank Umum Syariah, EAR dan DER berpengaruh negatif dan signifikan terhadap ROA dan ROE, serta ukuran perusahaan dan pertumbuhan ekonomi berpengaruh positif dan signifikan terhadap ROA dan ROE. Hasil tersebut menunjukkan pengaruh struktur modal terhadap kinerja keuangan tidak selalu positif.
Keyword: Dual banking system, kinerja keuangan, regresi data panel, struktur modal

Judul: Analisis Pengaruh Struktur Modal Bank terhadap Profitabilitas Bank Umum Syariah di Indonesia
Abstrak: Kinerja bank sangat dipengaruhi oleh struktur modalnya. Hal ini karena dalam permodalan suatu usaha atau bisnis, utang dapat menjadi sumber utama pertumbuhan atau sebaliknya meningkatkan risiko kebangkrutan/kesulitan keuangan (financial distress). Penelitian ini bertujuan melihat pengaruh struktur modal Bank Umum Syariah (BUS) di Indonesia dan pengaruhnya terhadap profitabilitas. Data yang digunakan dalam penelitian ini adalah data empiris 5 bank selama tahun 2008-2017. Kinerja bank diukur dengan rasio profitabilitas yaitu Rasio Laba terhadap Aset (ROA) dan Rasio Laba terhadap Ekuitas (ROE). Variabel struktur modal yang digunakan adalah Rasio Ekuitas terhadap Aset (EAR). Penelitian ini juga menggunakan variabel dependen Ukuran Perusahaan, Tingkat SBIS Riil, dan Pertumbuhan Ekonomi. Secara umum struktur modal berpengaruh signifikan negatif terhadap ROA/ROE. Pertumbuhan ekonomi sebagai salah satu variabel makroekonomi berpengaruh signifikan dan positif terhadap ROA maupun ROE.
Keyword: struktur modal, profitabilitas, data panel, bank umum syariah

Judul: DNA Extraction and Characterization of Salmonella‟s Lytic Bacteriophage Genome
Abstrak: Bacteriophages are ubiquitous in nature and are known to proliferate wherever their bacterial hosts exist. Their virion particles can exist independently outside the host, however all phages are need their host to propagate. Several phages are highly specific to host cell surface receptors and any slight changes in structure results in little or no interaction between the phage and its host. Salmonella‟s phage isolated from sewage water where their bacteria exist. Three isolated of phages (phages 15, 19 and 38) were used in this research that concentrated using three types of methods. PEG/ NaCl method was firstly used to concentrate the phages based on their molecular weight to precipitate the phage particles during centrifugation. The second method was Scraping Plaque method. In this method, overlay plaques were scraped and collected in SM buffer to get phage concentrates. Enrichment method was the last method used to concentrate the phages. Phage genome isolation was done using two methods i.e. EDTA/SDS and Proteinase K methods. The first method was done using DNase I to eliminate bacterial DNA followed by SDS/EDTA treatment to release phages DNA and phenol-chloroform-isoamyl alcohol to extract the DNA. DNA was collected by isopropanol extraction. While in Proteinase K method, bacterial DNA was eliminated by DNase I and Proteinase K/SDS was used to degrade phages capsids and ethanol for DNA precipitation. The result showed that PEG/NaCl method resulted the highest phage concentration for phage 15 and phage 19, while scrapping method was the highest for phage 38. The quantity and purity of extracted DNA were low for PEG/NaCl and Scraping methods, while Enrichment method was higher indicated higher purity. Run on agarose gel electrophoresis of extracted DNA confirmed that Enrichment method results were the best while scraping and PEG/NaCl method was appeared smear background. Based on DNA genome size determination, the bacteriphages of Salmonella sp were comparable with other study of Salmonella phages. Phage P15 with genome size of 39,5 kb was close to phage epsilon15. Phage P19 with genome size of 41 kb was close to phage ST160. And phage P38 with genome size of 48,5 kb was close to phage Gifsy-1.
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