Judul: Analisis Faktor-faktor yang mempengaruhi Jual Beli Video Game Digital dalam Perspektif Syariah
Abstrak: Penelitian ini bertujuan untuk menganalisis apakah kegiatan jual beli permainan digital di Steam sesuai dengan prinsip syariah atau tidak. Data diperoleh dari 100 responden yang pernah membeli video game digital di Steam. Hasil dari analisis ini menggambarkan bahwa diperoleh 7 faktor yang menjadi indikasi soal ketidaksesuaian prinsip syariah pada pembelian game digital Steam, yaitu : banyaknya game yang dibeli, pengetahuan tentang diskon, jumlah steam wallet yang dibeli, steam wallet dalam bentuk dollar, diskon, pantauan terhadap dollar dan pembelian saat dollar turun.
Keyword: analisis faktor, jual beli, Steam

Judul: Faktor-faktor yang Memengaruhi Perilaku Pembelian Impulsif dalam Belanja melalui Platform E-commerce pada Konsumen Muslim
Abstrak: Kegiatan belanja online meningkat pesat saat pandemi Covid-19, didukung dengan meningkatnya persentase penetrasi pengguna internet disertai adanya platform e-commerce yang mudah dijangkau mendorong perilaku konsumtif penggunanya (pembelian impulsif). Pembelian impulsif merupakan perilaku pembelian tanpa perencanaan yang terjadi secara spontan, Islam melarang umatnya bersikap israf dan tabdzir dalam konsumsi. Penelitian ini bertujuan menganalisis faktor-faktor yang memengaruhi perilaku pembelian impulsif dalam belanja melalui platform e-commerce pada konsumen muslim. Metode analisis yang digunakan dalam penelitian ini yaitu analisis deskriptif dan SEM-PLS. Sampel yang diperoleh sebanyak 294 responden secara online dari pengguna platform e-commerce yang beragama Islam dan berdomisili di Jawa Barat. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang positif dan signifikan hubungan antara religiusitas terhadap sikap. Namun, perilaku pembelian impulsif tidak dipengaruhi oleh program promosi dan kemudahan yang dirasakan. Oleh karena itu, lembaga terkait diharapkan dapat memberikan edukasi terkait managemen keuangan pada konsumen muslim., Online shopping activities has been increasing rapidly during the Covid-19 pandemic, this also contributed by the increasing percentage of internet user penetration along with availability of easy-to-reach e-commerce platform that encourages user’s consumptive behavior (impulsive buying). Impulsive buying behavior is an act of users on spontaneously buying products without consideration, Islam forbids its people to be israf and tabdzir in consumption. This study aims to analyze the factors that influence the impulsive buying behavior of Muslim consumers shopping through e-commerce platform. The analytical method used in this research is descriptive analysis and SEM-PLS. The sample obtained was 294 respondents online from Muslim e-commerce users in West Java. The results showed that there was a positive and significant relationship between religiosity and attitude. However, impulsive buying behavior is not influenced by promotional programs and perceived easiness. Therefore, the institutions have to educated muslim consumers about financial management.
Keyword: E-commerce, Pembelian Impulsif, Konsumen Muslim, SEM-PLS

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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