The use of fossil energy in the maritime industry has become a major source of carbon emissions and vulnerability to fuel price fluctuations. In an effort to overcome these challenges and move towards a more sustainable future, the use of solar energy has emerged as a significant potential solution. Batam City, with its strategic location and rapidly growing maritime interests, has great potential to adopt solar energy in its maritime operations. This study aims to investigate the potential and challenges of developing solar-based sustainable electrical energy in the maritime sector in Batam City. We identify the most suitable locations for solar panel installations, explore efficient energy storage technologies, and analyze reliable maritime grid system integration. Additionally, we discuss personnel training and environmental awareness efforts necessary to support this transition. This study also reviews the role of policy and regulation in encouraging investment in solar energy and encouraging collaboration with relevant stakeholders. The research results show that the use of solar energy in maritime governance in Batam City can reduce carbon emissions, increase energy security and reduce operational costs in the long term. This study provides valuable insights for decision making and strategic planning for local governments, industry players and academic institutions interested in realizing sustainable and future-oriented maritime governance.
 
 

The Mangongkal Holi tradition which is carried out at each event makes the writer interested in researching it because in its implementation there are symbols and behaviors/activities that are interconnected and have their own meaning. What is the importance of the Mangongkal Holi tradition for the Toba Batak people so that this tradition must be carried out. This study uses descriptive analysis with qualitative research, which emphasizes the perspectives, ways of life, tastes or expressions of emotions and beliefs from the people studied regarding the problems studied which are also data. In this study the authors used a descriptive research method with a qualitative method. Therefore, the research subjects were traditional leaders, families who carry out the Mangongkal Holi ceremony, and local residents in North Sumatra. And the object of this research is the symbolic meaning of the Mangongkal Holi ceremony for the Toba Batak people in North Sumatra. Purposive sampling technique used to take informants.

<p><strong>Abstract. </strong>Early marriage is still a phenomenon in the neighborhood. Several factors cause someone to marry early. The purpose of this study is to give the readers an insight into a woman's adaptation in deciding the marriage age so that later, the number of early marriages can be indirectly reduced. The research method used is qualitative research based on the philosophy of postpositivism. Data collection techniques are triangulated (combined), and data analysis is inductive/qualitative. Data will be collected using in-depth interview techniques and documentary studies. In this case, researchers will study 3 women who marry at an early age. The results of this study show that most of the factors that cause early marriage are encouragement from parents and economic factors. The study results can describe self-adjustment in women who married early to get better.</p><strong><em>Keywords: </em></strong><em>Self-Adjustment; Early Marriage; Women; Decision Making</em>

Tujuan adanya penelitian ini yaitu untuk menganalisis pengaruh manfaat, kemudahan dan fitur layanan terhadap keputusan penggunaan dompet digital OVO pada mahasiswa. Populasi yang digunakan yaitu mahasiswa UIN Raden Mas Said Surakarta yang pernah atau sedang menggunakan dompet digital OVO. Sampel diambil melalui teknik purposive sampling sehingga diperoleh sampel sebesar 100 responden. Metode yang digunakan yaitu metode kuantitatif. Penganalisisan data menggunakan analisis regresi linear berganda. Hasil penelitian menyatakan secara simultan variabel manfaat, kemudahan dan fitur layanan berpengaruh terhadap keputusan penggunaan dompet digital OVO pada mahasiswa. Berdasar hasil uji t, variabel manfaat dan kemudahan memberikan pengaruh positif terhadap keputusan penggunaan. Sementara fitur layanan tidak memiliki pengaruh terhadap keputusan penggunaan.