Judul: Analisis Niat Pengemudi Becak Bermotor Menjadi Pengemudi Ojek Daring Menggunakan Theory of Planned Behavior
Abstrak: Transportasi berbasis aplikasi daring (TBAD) atau yang biasa disebut dengan ojek daring merupakan perkembangan teknologi yang saat ini ramai dibicarakan. Penelitian ini bertujuan untuk menganalisis niat pengemudi becak bermotor berpindah ke ojek daring menggunakan Theory of Planned Behavior (TPB). Desain penelitian yang digunakan yaitu cross sectional study. Contoh dalam penelitian ini adalah 110 orang pengemudi becak bermotor yang berada di Kota Binjai, Sumatera Utara. Contoh dipilih menggunakan teknik convenience. Data dikumpulkan melalui wawancara langsung yang terdiri dari karakteristik contoh dan variabel yang terdapat pada theory of planned behavior. Hasil penelitian menunjukkan bahwa usia contoh berhubungan negatif dengan sikap terhadap perilaku, norma subjektif, dan niat menjadi pengemudi ojek daring, sedangkan lama pendidikan berhubungan positif signifikan dengan norma subjektif. Berdasarkan analisis menggunakan regresi linier berganda menunjukkan bahwa variabel sikap terhadap perilaku dan norma subjektif berpengaruh signifikan terhadap niat sedangkan variabel kontrol perilaku tidak berpengaruh terhadap niat.
Keyword: ojek daring, niat, kontrol perilaku, sikap terhadap perilaku, norma subjektif, theory of planned behavior

Judul: Online Transportation Application  Users Research on the Use of Digital Nudge to Shape Responsible Consumption
Abstrak: Riset Pengguna Aplikasi Transportasi Daring Terhadap Penggunaan Digital Nudge untuk Membentuk Konsumsi yang Bertanggung Jawab. Dibimbing oleh AUZI ASFARIAN dan ANNISA. Peningkatan penggunaan transportasi daring oleh generasi muda menghasilkan berbagai dampak. Untuk meminimalisir dampak negatif yang dihasilkan, aplikasi transportasi daring mulai mengimplementasikan strategi nudging, namun belum diketahui efektivitasnya di Indonesia. Sementara itu, penilaian ini diperlukan untuk menemukan strategi nudging yang efektif dalam menumbuhkan kebiasaan pemuda terhadap konsumsi yang bertanggung jawab. Untuk itu, pada penelitian ini dilakukan pengukuran efektivitas digital nudge pada aplikasi transportasi daring, khususnya di kalangan generasi muda berusia 18-29 tahun. Penelitian ini dilakukan secara kuantitatif dan kualitatif dengan berfokus pada sikap dan perilaku terkait konsumsi bertanggung jawab melalui digital nudges. Hasil penelitian menunjukkan adanya ketidaksesuaian antara sikap dan perilaku partisipan. Hal ini disebabkan oleh berbagai alasan, yaitu adanya biaya tambahan, kurangnya kesadaran akan keberadaan fitur, penyajian informasi yang kurang menarik, dan kekurangan kepercayaan terhadap transparansi alokasi dana dalam fitur tersebut., Online Transportation Application Users Research on the Use of Digital Nudge to Shape Responsible Consumption. Supervised by AUZI ASFARIAN dan ANNISA. The increasing use of ride-hailing by the younger generation has resulted in various impacts. To minimize the negative impacts, ride-hailing apps have begun to implement nudging strategies. However, its effectiveness in Indonesia is unknown. In fact, this assessment is needed to find nudging strategies that are effective in fostering youth habits towards responsible consumption. Therefore, this study measures the effectiveness of digital nudge in online transportation applications, especially among young people aged 18-29 years. This research was conducted quantitatively and qualitatively by focusing on attitudes and behaviors related to responsible consumption through digital nudges. The results showed a discrepancy between participants' attitudes and behaviors. This is due to various reasons, such as the presence of additional costs, lack of awareness of the existence of the feature, presentation of information that is less attractive, and lack of trust in the transparency of the allocation of funds.
Keyword: digital nudge, efektivitas, generasi muda, konsumsi bertanggung jawab, transportasi daring, responsible consumption, effectiveness, young generation, ride-hailing

Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
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