Judul: Impact of E-Service Quality and Customer Trust on Buying Ticket Decisions on Pelni Mobile Application
Abstrak: Indonesia merupakan negara urutan ke lima di dunia dengan kepulauan terbesar di dunia. Transportasi laut dapat menjadi salah satu peluang dalam transportasi di Indonesia. Melihat persaingan bisnis pada industri transportasi lainnya di Indonesia, transportasi laut mengalami penurunan penggunanya. PT PELNI (Persero) sebagai perusahaan yang bergerak dibidang pelayaran dengan melihat peluang peningkatan penggunaan internet di Indonesia menciptakan aplikasi Pelni Mobile. Tujuan penelitian ini menganalisis pengaruh e-service quality dan kepercayaan pelanggan terhadap keputusan pembelian pada aplikasi Pelni Mobile. Penelitian dilakukan di Pelabuhan Tanjung Priok dengan metode kuantitatif dari bulan April 2024 hingga Mei 2024. Sampel yang diteliti adalah pengguna aplikasi Pelni Mobile sebanyak 200 orang yang dipilih menggunakan teknik purposive sampling. Metode analisis yang digunakan pada penelitian ini adalah analisis deskriptif dan SEM-PLS dengan aplikasi Smart PLS 4. Hasil penelitian menunjukkan bahwa terdapat pengaruh positif dan signifikan dari eservice quality dan kepercayaan pelanggan terhadap keputusan pembelian pada Aplikasi Pelni Mobile., Indonesia is the fifth largest island country in the world. Maritime transport can be one of the opportunities in transport in Indonesia. Seeing business competition with other transport industries in Indonesia, maritime transport is experiencing a decline in its usage. PT PELNI (Persero) as a company that is moving in the field of navigation by seeing opportunities to increase the use of the Internet in Indonesia created the application Pelni Mobile. The purpose of this study is to analyze the impact of e-service quality and customer trust on purchasing decisions on the Pelni Mobile app. The research was conducted at Tanjung Priok Harbour using quantitative methods from April 2024 to May 2024. The sample examined was a user of the Pelni Mobile application of 200 people selected using purposive sampling techniques. The method of analysis used in this study is descriptive analysis and SEM-PLS with Smart PLS 4. The results of the study show that there is a positive and significant influence of e-service quality and customer trust on purchasing decisions on the Pelni Mobile Application.
Keyword: SEM-PLS, Customer Trust, Aplikasi Pelni Mobile, E-Service Quality, Kepercayaan Pelanggan, E-Service Quality, Pelni Mobile application

Judul: The Influence of E-Service Quality, Product Price, and Customer Trust on Purchasing Decisions of Electronic Products in E-Commerce
Abstrak: Kemajuan teknologi dan ekonomi telah menciptakan e-commerce, memungkinkan pembelian produk elektronik secara online. Namun, ketidakpastian akan kualitas produk dan sifat High Involvement Experience Product meningkatkan kompleksitas keputusan pembelian. Penelitian ini bertujuan menganalisis pengaruh e-service quality, harga produk, dan kepercayaan pelanggan terhadap keputusan pembelian di e-commerce Shopee dan Tokopedia. Penelitian ini dilaksanakan dengan menyebarkan kuesioner secara online melalui Google Forms kepada responden yang berusia 17-44 tahun. Metode analisis data yang digunakan adalah analisis deskriptif dan Structural Equation Modelling dengan model Partial Least Square (SEM-PLS). Hasil penelitian menunjukkan bahwa e-service quality dan harga produk secara parsial berpengaruh signifikan terhadap keputusan pembelian dan kepercayaan pelanggan. Namun, kepercayaan pelanggan tidak berpengaruh terhadap keputusan pembelian. Selain itu, kepercayaan tidak mampu memediasi hubungan antara e-service quality atau harga produk dengan keputusan pembelian., Technological and economic advances had created e-commerce, enabling the purchase of electronic products online. However, uncertainty about product quality and the nature of High Involvement Experiences Products increased the complexity of purchasing decisions. This study aimed to analyze the effect of electronic service quality, product price, and customer trust on purchasing decisions in Shopee and Tokopedia e-commerce. This study is conducted by distributing questionnaires online via Google Forms to respondents aged 17-44 years. The data analysis method used were descriptive analysis and Structural Equation Modeling with the Partial Least Square (SEM-PLS) model. The results showed that electronic service quality and product price partially had a significant effect on purchasing decisions and customer trust. However, customer trust had not influenced purchasing decisions. In addition, trust could not mediate the relationship between electronic service quality or product price and purchasing decisions.
Keyword: Purchase Decision, Customer Trust, Electronic Product, Electronic Service Quality, Product Price

Judul: Hydrothermal Synthesis of Biphasic Calcium Posphate
Abstrak: Biphasio calsium phosphate (BCP), which was a mixture of hydroxypatite (HA) and tricalcium phosphate (TCP), was synthesized by hydrothermal method followed by sintering process. Hydroxyapatite was produced by using natural calcium source CaO from hen's eggshell and (NH4)2HPO4 as phosphate souce, other hydroxyapatite sample was produce by using synthetic calcium source Ca(OH) and H3PO4 as phosphate source.
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