Judul: Characteristic of Instagram User dan Exposure of Pro-Environmental Campaign via  Instagram and Pro-Environmental Awareness
Abstrak: Kerusakan lingkungan adalah permasalahan yang dihadapi oleh Indonesia bahkan dunia. Kampanye lingkungan berperan untuk menumbuhkan kesadaran pro-lingkungan di masyarakat luas. Kampanye lingkungan dilakukan melalui media sosial Instagram. Tujuan penelitian ini adalah untuk menganalisis hubungan antara karakteristik pengguna Instagram dan keterdedahan kampanye pro-lingkungan melalui media sosial dalam meningkatkan kesadaran pro-lingkungan pengguna media sosial. Penelitian ini mengambil kasus akun media sosial Instagram @sayapilihbumi dalam kampanye pro-lingkungan dengan responden berjumlah 82 orang dengan teknik pengambilan sampel secara aksidental. Variabel penelitian ini terdiri atas karakteristik pengguna Instagram, keterdedahan kampanye pro-lingkungan, dan kesadaran pro-lingkungan. Data diolah dengan menggunakan uji korelasi Rank Spearman untuk data ordinal dan uji Chi-Square dengan alternatif uji Fisher’s Exact untuk data nominal. Hasil penelitian menunjukkan bahwa kesadaran pro-lingkungan pengguna Instagram tinggi. Hasil uji korelasi dan Fisher’s Exact menunjukkan karakteristik pengguna Instagram tidak berhubungan dengan kesadaran pro-lingkungan pengguna Instagram, sedangkan keterdedahan kampanye pro-lingkungan berhubungan dengan kesadaran pro-lingkungan pengguna Instagram., Environmental damage is a problem faced by Indonesia and even the world. Environmental campaign to raise pro-environment awareness in the wider community. Environmental campaigns are carried out through Instagram. The purpose of this study was to analyze the relationship between the characteristics of Instagram users and the exposure of pro-environmental campaigns through social media in increasing pro-environmental awareness of social media users. This study takes the case of the Instagram social media account @sayapilihbumi in a pro-environment campaign with respondents, 82 people with accidental sampling techniques. The variables of this research consist of characteristics of Instagram users, exposure to pro environment campaigns, and pro-environment awareness. The data was processed using the Spearman Rank correlation test for ordinal data dan Chi-Square test with alternatif Fisher’s Exact test untuk data nominal. The results showed that the pro-environmental awareness of Instagram users was high. The results of the correlation test show that the characteristics of Instagram users are not related to pro-environmental awareness of Instagram users, while the exposure of pro-environment campaigns is related to pro-environmental awareness of Instagram users.
Keyword: campaign exposure, pro-environment, pro-environment awareness

Judul: Efektivitas Pesan Pembagian 1000 Kantong Ramah Lingkungan Melalui Media Sosial Instagram @bogormengabdi
Abstrak: Permasalahan lingkungan yang memerlukan perhatian masyarakat luas membuat penggiat lingkungan memanfaatkan media sosial untuk mengkampanyekan berbagai program dan kegiatan yang akan dilakukan. Pemanfaatan media sosial Instagram untuk kampanye juga dilakukan oleh @bogormengabdi. Penelitian ini bertujuan untuk mengidentifikasi keefektifan pesan @bogormengabdi melalui media sosial instagram, serta menganalisis hubungan antara terpaan media sosial dengan keefektifan pesan dan menganalisis hubungan karakteristik pesan kampanye dengan keefektifan pesan. Model yang digunakan dalam penelitian ini adalah model AISAS. Metode penelitian yang digunakan adalah survey menggunakan instrumen kuesioner yang disebar secara online melalui Google Form yang disebarkan kepada 105 responden sebagai pengikut akun @bogormengabdi. Hasil penelitian menunjukan bahwa efektivitas pesan pembagian 1000 kantong ramah lingkungan efektif pada tahap attention dan interest. Hubungan sangat nyata ditemukan antara frekuensi mengakses akun @bogormengabdi dengan efektivitas kampanye pada variabel terpaan media sosial. Hubungan nyata ditemukan antara durasi mengakses akun dengan efektivitas pesan pada tahap attention, interest dan share. Selain itu, terdapat hubungan sangat nyata antara indikator karakteristik pesan dengan efektivitas pesan., Environmental problems that require the attention of the wider community have made environmental activists use social media to campaign for various programs and activities will be carried out. The use of Instagram social media for campaigns is also carried out by @bogormengabdi. This study aims to identify the effectiveness of @bogormengabdi's messages through Instagram social media, as well as analyze the relationship between social media exposure and message effectiveness and analyze the relationship between campaign message characteristics and message effectiveness. The model used in this study is the AISAS model. The research method used was a survey using a questionnaire instrument which was distributed online via the Google Form which was distributed to 105 respondents as followers of the @bogormengabdi account. The results showed that the effectiveness of the message for distributing 1000 eco-friendly bags was effective at the attention and interest stages. A very significant relationship was found between the frequency of accessing the @bogormengabdi account and campaign effectiveness on social media exposure variables. A real relationship was found between the duration of accessing and message effectiveness at the attention, interest and share stages. In addition, there is a very real relationship between the post characteristic indicators and message effectiveness.
Keyword: instagram, pesan, model aisas, AISAS model, instagram, message

Judul: Hydrothermal Synthesis of Biphasic Calcium Posphate
Abstrak: Biphasio calsium phosphate (BCP), which was a mixture of hydroxypatite (HA) and tricalcium phosphate (TCP), was synthesized by hydrothermal method followed by sintering process. Hydroxyapatite was produced by using natural calcium source CaO from hen's eggshell and (NH4)2HPO4 as phosphate souce, other hydroxyapatite sample was produce by using synthetic calcium source Ca(OH) and H3PO4 as phosphate source.
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