Judul: The Influence of Self-Concept and Parent Attachment on Quarter-Life Crisis in Generation Z
Abstrak: Pada masa dewasa awal, seseorang dapat mengalami krisis yang disebut quarter-life crisis. Penelitian ini bertujuan untuk menganalisis pengaruh karakteristik individu, karakteristik orang tua, konsep diri, dan kelekatan orang tua terhadap quarter-life crisis pada generasi Z. Desain penelitian yang digunakan adalah penelitian eksplanatori dengan pendekatan kuantitatif. Penelitian ini melibatkan 213 responden yang terbagi menjadi dua kelompok generasi Z yaitu kelompok mahasiswa dan karyawan berusia 18-25 tahun yang berdomisili di daerah Jabodetabek. Hasil uji beda menunjukkan bahwa konsep diri, kelekatan orang tua, dan quarter-life crisis memiliki perbedaan signifikan antara generasi Z yang berprofesi sebagai mahasiswa dan karyawan. Hasil uji hubungan menemukan bahwa konsep diri memiliki hubungan negatif dengan quarter-life crisis, sementara kelekatan orang tua tidak memiliki hubungan dengan quarter-life crisis. Konsep diri juga secara konsisten memengaruhi quarter-life crisis dari hasil uji pengaruh pada penelitian ini., In early adulthood, a person may experience a crisis called a quarter-life crisis. This study aims to analyze the influence of individual characteristics, parental characteristics, self-concept, and parental attachment to the quarter-life crisis in generation Z. The research design used is explanatory research with a quantitative approach. This research involved 213 respondents who were divided into two groups of generation Z, namely groups of college students and employees aged 18-25 years domiciled in the Jabodetabek area. The results of the different test show that self-concept, parental attachment, and quarter-life crisis have significant differences between generation Z who work as college students and employees. The results of the relationship test found that self-concept had a negative relationship with quarter-life crisis, while parental attachment had no relationship with quarter-life crisis. Self-concept also consistently influences the quarter-life crisis from the results of the regression test in this study.
Keyword: generation Z, parental attachment, quarter-life crisis, self-concept

Judul: The Effects of Resilience and Parental Interactions on Quarter-Life Crisis among Early Adults
Abstrak: Setiap periode perkembangan manusia memiliki keunikan tantangan yang berbeda-beda, namun apabila tantangan tersebut tidak dapat diatasi akan menyebabkan munculnya krisis dalam hidup. Krisis pada periode dewasa awal disebut quarter-life crisis. Penelitian ini bertujuan untuk menganalisis hubungan dan pengaruh resiliensi dan interaksi orang tua terhadap quarter-life crisis pada dewasa awal. Penelitian ini menggunakan desain explanatory dengan 266 dewasa awal yang berusia 18-29 tahun di wilayah Jakarta, Bogor, Depok, Tangerang, dan Bekasi (Jabodetabek). Penelitian ini menggunakan teknik voluntary sampling dengan survei dilakukan secara online. Hasil analisis korelasi menunjukkan bahwa resiliensi dan interaksi orang tua dengan anak memiliki hubungan negatif signifikan dengan quarter-life crisis. Hasil analisis regresi menunjukkan bahwa resiliensi dan interaksi orang tua dengan anak memiliki pengaruh negatif signifikan terhadap quarter-life crisis., Each period of human development has unique challenges, but if these challenges cannot be overcome, it will cause crisis in life. The crisis during early adulthood is known as quarter-life crisis. This study aimed to analyze the relationship and the effect of resilience and parental interactions in early adult who experience a quarter-life crisis. The research design was explanatory involving 266 early adults with age ranged 18-29 years old in the areas of Jakarta, Bogor, Depok, Tangerang, and Bekasi (Jabodetabek). This study employed a voluntary sampling technique using online survey. The correlation analysis showed that resilience and parental interactions had a significant negative relationship with quarter-life crisis. The regression analysis showed that resilience and parental interactions had a significant effect on the quarter-life crisis.
Keyword: dewasa awal, interaksi orang tua, quarter-life crisis, resiliensi

Judul: Rancang Bangun Elemen Pemanas Bahan Bakar Minyak Nyamplung Untuk Motor Bakar Diesel dengan Memanfaatkan Panas Gas Buang
Abstrak: Tamanu oil is one of biosolar substituter as diesel engine fuel. High viscosity of tamanu oil becomes main obstacle in direct using of tamanu oil as diesel engine fuel. Heater element is made to decrease tamanu oil viscosity. Heater element is benefitted high temperature of diesel engine exhaust gas as reheating source. Optimum temperature which is needed to reduce tamanu oil viscosity of 3-5 cSt is 110 Celcius degree (biosolar viscosity of 30oC is 5-7 cSt). IV design of element heater has optimum tamanu oil reheating. There are four kind of tamanu oil that has different treatment. degumming neutralization (N4) tamanu oil has best quality with the lowest viscosity of 30cSt in 30oC. Tamanu oil (N4) usage as fuel occur reduction power of 12.26 %, torsion of 9.59 %, power maximum of diesel engine is 5.39 kW and maximum torsion of 123.74 Nm. Maximum power of diesel engine using biosolar is 5.99 kW and maximum torsion of 144.53 Nm. But then, tamanu oil can replace biosolar (fossil energy), without made as biodiesel first and mixed with biosolar.
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