This research utilized theory uses and gratifications for discussing students' behavior in taking advantages of social media. Respondents came from 3 public universities in the city of Padang. The data collection method was done by distributing questionnaires and interviews, then, the data analyzed statistically. The results concluded that 97% of students claimed as social media active users. Based on the type of the application, the messenger/ chat app. was more preferable then the social networks. WhatsApp is the most application used. As many as 96% of respondents claimed using it. Whereas Facebook, the most preferable application uses throughout the world, is only used by 36% of respondents. A large number of WhatsApp users is in line with their goals and benefits use this content. The majority (87%) of respondents use social media as a tool of communication, in addition to information retrieval, and social interaction. ABSTRAKPenelitian ini memanfaatkan teori uses and gratifications untuk membahas tentang perilaku mahasiswa dalam memanfaatkan media sosial. Responden berasal dari 3 perguruan tinggi negeri di Kota Padang. Metode pengumpulan data dilakukan dengan membagikan kuesioner dan wawancara. Data dianalisis secara statistik. Hasil penelitian 97% mahasiswa mengaku sebagai pengguna aktif media sosial. Berdasarkan jenis aplikasinya, messenger/chat app lebih diminati dibandingkan dengan social network. WhatsApp menjadi aplikasi yang paling banyak digunakan. Sebanyak 96% responden mengaku menggunakannya. Sedangkan Facebook, aplikasi yang selama ini paling banyak digunakan di seluruh dunia, hanya digunakan oleh 36% responden. Banyaknya jumlah pengguna WhatsApp sejalan dengan tujuan dan manfaat menggunakan konten ini. Sebagian besar responden (87%) memanfaatkan media sosial sebagai alat komunikasi, disamping untuk pencarian informasi, serta interaksi sosial.

AbstrakBiodiesel merupakan bahan bakar nabati alternatif sebagai pengganti bahan bakar fosil yang jumlahnya semakin hari semakin menipis. Telah dilakukan penelitian untuk membuat biodiesel dengan bahan baku minyak goreng bekas dan metanol menggunakan zeolit alam teraktivasi sebagai katalis. Dengan memvariasikan waktu pengadukan dan perbandingan berat campuran pada proses pembuatan biodiesel didapatkan hasil yield yang tidak begitu berbeda jauh untuk setiap variasi waktu pengadukan, sedangkan yield nampak berubah untuk variasi perbandingan berat campuran yaitu 6,6493 % untuk perbandingan 4:1 metanol dan 76,4152 % untuk perbandingan 1:4 metanol. Namun biodiesel yang didapatkan tidak memenuhi standar SNI tentang biodiesel. AbstractBiodiesel is an alternative biofuel as a substitute for fossil. The research has been conducted to make biodiesel with raw materials of used cooking oil and methanol using activated natural zeolite as a catalyst. By varying the stirring time and the ratio of mixed weights in the biodiesel manufacturing process, the yields did not differ greatly for each variation of stirring time, while the yield appears to vary for the ratio of weight 6.6493% for a ratio of 4: 1 methanol and 76.4152 % for a ratio of 1: 4 methanol. However, the biodiesel obtained did not meet the SNI standard on biodiesel.

Bagian penjualan dalam suatu organisasi perusahaan merupakan sesuatu yang vital karena kamajuan perusahaan salah satunya sangat ditentukan dari bagian ini. Permasalahan yang ada dalam administrasi tentang bagaimana pengelolaan arsip data proses pencarian dokumen dapat lebih cepat dan akurat, pengadaan persediaan data beserta kelengkapan datanya tidak bisa terkontrol. Dengan adanya permasalahan tersebut penelitian bertujuan untuk membuat sistem aplikasi penjualan untuk mengelola sales order, delivery order, invoice, shipping slip dan sales jurnal  setelah dilakukan perancangan dilakukan pengujian performance pada aplikasi penjualan dapat digunakan perusahaan dalam mengelola arsip penjualan sehingga pengelolaan data penjualan dapat terorganisasi  dengan baik.

<p class="Pa9">The best user award is one of the awards that given to increase visitors interest to visit library. During this time, UPT Central Library Andalas University, and most of the other libraries only used instrument of the transaction number of borrowing book as the criteria for selection. The development of library services and the utilization of information technology has demanded a review of the best selection system. In addition to the number of lending transactions, it is necessary to add the criteria of number of visits, delay returning of borrowing and the contribution of the librarian towards the development of the library. The system involved 20 candidate based on the number of borrowing transaction and the visitation number. They were observed by the criteria delay of returning number, and scientific writing about library. Result of assessment from each alternative which were converted into Likert Scale in decision matrix form. The MCDM model was used for deciding the assessment result. This model is used to determine the final value of each alternative with the help of TOPSIS method. This method is used to determine the criteria weight and calculate the value of alternative preferences. The best user is awarded by the highest references value.</p>

Termites are perceived as decomposers and as pests in an ecosystem. A study on the species composition of termites in different soil types (i.e. clay, sand and peat) in oil palm plantations was conducted between