Judul: Faktor - Faktor yang Mempengaruhi Minat Penggunaan Aplikasi Investasi AJAIB di Jabodetabek
Abstrak: AJAIB menjadi perusahaan unicorn pertama di bidang investasi dan menjadi platform sekuritas paling favorit di Indonesia tahun 2022. Oleh karena itu, AJAIB harus terus melakukan pengembangan mengenai adopsi aplikasi dan melihat teknologi AJAIB dapat diterima oleh masyarakat atau tidak. Hal ini untuk melihat AJAIB dapat bertahan di dalam persaingan yang semakin kompetitif serta menjaga eksistensi dan keberlanjutan AJAIB. Penelitian ini bertujuan untuk menganalisis karakteristik pengguna aplikasi investasi AJAIB di Jabodetabek, menguji pengaruh persepsi manfaat, persepsi kemudahan, persepsi risiko, dan kepercayaan terhadap niat perilaku penggunaan aplikasi investasi AJAIB di Jabodetabek. Responden dalam penelitian ini terdiri dari 150 orang berdomisili Jabodetabek yang menggunakan aplikasi investasi AJAIB. Data primer yang digunakan untuk penelitian ini diperoleh melalui kuesioner yang disebarkan secara online, pemilihan responden menggunakan metode purposive sampling. Analisis data menggunakan Structural Equation Modeling (SEM), menggunakan software SmartPLS. Hasil penelitian menunjukkan bahwa persepsi manfaat, persepsi risiko dan kepercayaan berpengaruh positif dan signifikan terhadap niat perilaku penggunaan. Namun, persepsi kemudahan yang dirasakan tidak berpengaruh signifikan terhadap niat perilaku penggunaan.
Keyword: AJAIB, perceived risk, SEM-PLS, unicorn

Judul: Analysis of Investors in Jabodetabek Intention for Using the IPOT Application using the Technology Acceptance Model (TAM) Approach
Abstrak: Perkembangan teknologi informasi turut merevolusi kegiatan bisnis menuju ke arah digital. Pasar modal merupakan salah satu usaha yang merevolusi model bisnisnya ke arah digital. IPOT merupakan salah satu platform penyedia layanan untuk melakukan transaksi di Bursa Efek Indonesia (BEI). Saat ini, IPOT merupakan aplikasi paling digemari di Indonesia untuk melakukan transaksi di pasar modal. Penelitian ini bertujuan untuk menganalisis pengaruh persepsi manfaat, persepsi kemudahan, dan persepsi kepercayaan terhadap minat penggunaan aplikasi IPOT pada investor di Jabodetabek. Penelitian ini menggunakan perangkat lunak IBM SPSS Statistics 26 dan SmartPLS 3.0 untuk pengolahan data. Hasil dari penelitian ini menunjukkan adanya pengaruh positif signifikan dari persepsi manfaat dan persepsi kemudahan dalam minat investor untuk menggunakan aplikasi IPOT, serta ditemukan persepsi kepercayaan tidak mempengaruhi minat investor untuk menggunakan aplikasi IPOT., The development of information technology is revolutionizing business activities towards digital. The capital market is one of the businesses that revolutionizes its business model towards digital. IPOT is a service provider platform for conducting transactions on the Indonesia Stock Exchange (IDX). Currently IPOT is the most popular application in Indonesia to perform transactions in the capital market. This study aims to analyze the effect of perceived usefulness, perceived ease of use, and perceived trust on investors intention in using the IPOT application in Jabodetabek. This research uses IBM SPSS Statistics 26 and SmartPLS 3.0 software for data processing. The results of this study indicate that there is a significant positive effect of perceived usefulness and perceived ease of use in investors intention to use the IPOT application, and it is found that the perceived trust does not affect investor intention to use the IPOT application.
Keyword: IPOT, Persepsi Manfaat, Persepsi Kemudahan, Persepsi Kepercayaan, Minat Pengunaan

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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