Judul: Faktor-Faktor yang Memengaruhi Pengungkapan Islamic Social Reporting pada Perusahaan di Jakarta Islamic Index.
Abstrak: Islamic Social Reporting (ISR) merupakan tolak ukur pelaporan kinerja sosial berbasis Islami pada perusahaan-perusahaan. Namun demikian, perkembangan ISR saat ini belum berkembang pesat di Indonesia karena belum ada regulasi yang mengatur standar pelaporan tanggung jawab sosial secara syariah. Peningkatan pengungkapan kinerja sosial Islami diharapkan memengaruhi keputusan investor muslim dalam memilih saham syariah di perusahaan Jakarta Islamic Index. Penelitian ini bertujuan untuk menganalisis pengungkapan tanggung jawab sosial perusahaan secara syariah dan faktor-faktor yang memengaruhinya. Metode yang digunakan dalam penelitian ini adalah regresi data panel dengan pendekatan Fixed Effect Model (FEM). Hasil analisis menunjukkan bahwa dari lima variabel yang diduga memengaruhi tingkat pengungkapan ISR, tiga variabel yaitu ukuran perusahaan berpengaruh positif, umur perusahaan dan leverage berpengaruh negatif signifikan terhadap pengungkapan ISR. Dua variabel lainnya yaitu jumlah dewan komisaris dan profitabilitas tidak berpengaruh terhadap pengungkapan ISR.
Keyword: data panel, Islamic Social Reporting (ISR), Jakarta Islamic Index, pengungkapan

Judul: The Fundamental analysis of the Jakarta Islamic Index (JII) in the 2015-2020 period
Abstrak: Perkembangan saham syariah di Indonesia cukup pesat, ditunjukan dengan pertambahan emiten saham syariah. Saham Syariah menjadi tempat berinvestasi yang sesuai dengan hukum Islam. Fluktuasi harga saham menyebabkan resiko ketidakpastian dari investasi. Naik turunnya harga saham di pengaruhi oleh faktor fundamental. Fundamental perusahaan dan fundamental ekonomi mempengaruhi harga saham. Tujuan penelitian ini adalah menganalisis pengaruh fundamental terhadap harga saham JII periode 2015-2020. Metode penelitian ini adalah Regresi panel data statis. Hasil menunjukkan variabel Earnings Per Share (EPS), Debt Equity Ratio (DER), Price Earning Ratio (PER), Return on Asset (ROA), Produk Dosmetik Bruto (PDB), The fed, Suku bunga riil dan Real Effective Exchange Rate (REER). memiliki pengaruh signifikan terhadap harga saham. Variabel EPS, PER, the fed dan REER mempunyai pengaruh positif terhadap harga saham. Variabel DER, ROA PDB dan suku bunga riil mempunyai hasil negatif terhadap harga saham JII., The development of Islamic stocks in Indonesia is quite rapid, it was shown by the accretion of the sharia shares issuer. Sharia stocks become an alternative investment instrument that comply with Islamic law. The fluctuations in stock prices lead to the risk of uncertainty of the investment. The up and down of the stock prices are influenced by fundamental factors. The fundamental of the company and the economy affect stock prices. The objective of this study is to analyze the influence of fundamental on the Jakarta Islamic Index (JII) stock prices in the 2015-2020 period. The method of this study is a Static Panel Data Regression. The result shows that the variables EPS, DER, PER, ROA, The fed, PDB, real interest rate and REER have a significant impact on stock prices. The variables EPS, PER, the fed and REER have a positive effect on stock prices. Meanwhile, DER, ROA, PDB and real interest rate variable has a negative effect on JII stock prices
Keyword: Economy, Fluctuations, Fundamental, Data Panel, JII

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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