Judul: The Effect of Self-Efficacy, Self-Directed Learning Readiness, Academic Motivation, and Self-Regulated Learning towards Academic Stress Undergraduate Student
Abstrak: Pembelajaran daring yang pada masa Covid-19 mengakibatkan mahasiswa mengalami stres akademik. Penelitian ini bertujuan untuk menganalisis pengaruh karakteristik individu, karakteristik keluarga, efikasi diri, kesiapan belajar mandiri, motivasi akademik, dan pengaturan diri dalam belajar terhadap stres akademik pada mahasiswa. Penelitian ini menggunakan desain eksplanatori yang melibatkan 238 mahasiswa di salah satu perguruan tinggi di Bogor. Penelitian ini dilakukan secara daring dengan teknik purposive sampling. Hasil uji menunjukkan hubungan antara jenis kelamin dengan beberapa variabel. Laki-laki lebih rendah dari perempuan dalam efikasi diri, kesiapan belajar mandiri, dan pengaturan diri dalam belajar. Laki-laki juga lebih rendah dari perempuan dalam tingkat stres akademik. Selain itu, usia mahasiswa berhubungan negatif signifikan dengan motivasi akademik. Hasil uji regresi linier berganda menunjukkan bahwa jenis kelamin, efikasi diri, dan motivasi akademik berpengaruh negatif signifikan terhadap stres akademik sedangkan pengaturan diri dalam belajar berpengaruh positif signifikan terhadap stres akademik., Online learning during the Covid-19 period resulted in students experiencing academic stress. This study aims to analyze the effect of individual characteristics, family characteristics, self-efficacy, readiness for independent learning, academic motivation, and self-regulation in learning on academic stress in students. This study used an explanatory design involving 238 students at a university in Bogor. This research was conducted online using a purposive sampling technique. The test results show a relationship between gender and several variables. Men are lower than women in self-efficacy, self-directed learning readiness, and self-regulated learning. Boys are also lower than girls in terms of academic stress. In addition, student age has a significant negative relationship with academic motivation. The results of multiple linear regression tests show that gender, self-efficacy, and academic motivation have a significant negative effect on academic stress, while self-regulated learning has a significant positive effect on academic stress.
Keyword: academic motivation, academic stress, self-directed learning readiness, self-efficacy, self-regulated learning

Judul: Academic Stress on Undergraduate Students: The Role of Social Capital, Self-Directed Learning Readiness, and Active Procrastination
Abstrak: Pembelajaran daring yang terlaksana akibat pandemi Covid-19 mengakibatkan mahasiswa mengalami stres akademik. Penelitian ini memiliki tujuan untuk menganalisis pengaruh karakteristik individu, karakteristik keluarga, modal sosial, kesiapan belajar mandiri, dan prokrastinasi aktif terhadap stres akademik. Penelitian ini adalah penelitian eksplanatori yang melibatkan 238 mahasiswa di suatu perguruan tinggi di Bogor. Penelitian ini dilakukan secara daring menggunakan kuesioner online dengan teknik purposive sampling yang memiliki ketentuan mahasiswa tahun kedua dan ketiga program sarjana yang pernah atau sedang melaksanakan pembelajaran daring. Hasil uji hubungan memperlihatkan jenis kelamin memiliki hubungan positif signifikan dengan kesiapan belajar mandiri dan prokrastinasi aktif. Selain itu, jenis kelamin memiliki hubungan negatif signifikan dengan stres akademik. Prokrastinasi aktif juga memiliki hubungan negatif signifikan dengan jumlah saudara. Hasil uji regresi (R2=0,257) menunjukkan bahwa modal sosial, kesiapan belajar mandiri, dan prokrastinasi aktif berpengaruh negatif signifikan terhadap stres akademik., Online learning carried out due to the Covid-19 pandemic causes students to experience academic stress. This study aims to analyze the effect of individual characteristics, family characteristics, social capital, self-directed learning readiness, and active procrastination on academic stress. This research is explanatory research involving 238 students at a university in Bogor. This research was conducted online using an online questionnaire with a purposive sampling technique which has provisions for second-year and third-year undergraduate students who have or are currently carrying out online learning. The results showed that gender positively correlated with self-directed learning readiness and active procrastination. In addition, gender has a significant negative relationship with academic stress. Active procrastination also has a significant negative relationship with the number of siblings. The regression test results (R2=0,257) showed that social capital, self-directed learning readiness, and active procrastination significantly negatively affected academic stress.
Keyword: academic stress, active procrastination, online learning, self-directed learning readiness, social capital

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4