Judul: Notifikasi Antrian Pesanan Di Rumah Makan Self Service Menggunakan Frekuensi Radio Dengan Model Komunikasi Point-To-Point.
Abstrak: Cara pemesanan makanan di sebagian rumah makan di Indonesia masih kurang efektif dan efisien karena pembeli harus menunggu pesanannya selesai dalam keadaan berdiri. Oleh sebab itu, suatu alat untuk memberikan notifikasi pesanan makanan yang murah dan sederhana dibuat agar pembeli dapat menunggu pesanannya dengan nyaman. Penelitian ini bertujuan untuk membuat alat yang dapat memberikan notifikasi menggunakan frekuensi radio dengan modulasi digital amplitude shift keying (ASK). Penelitian ini menghasilkan alat notifikasi pesanan makanan yang terdiri atas 4 pasang perangkat yaitu 4 transmitter untuk di kasir dan 4 receiver untuk pembeli. Alat telah berfungsi berfungsi dengan baik, namun masih ada sedikit kekurangan. Receiver dapat menerima sinyal dengan memberikan tanda berupa nyala LED dan buzzer yang berbunyi. Bel notifikasi dengan antena sepanjang 17 cm dan frekuensi 433 MHz dapat menempuh jarak 120 m pada luar ruangan dan 40 m sampai 50 m di dalam ruangan. Pembuatan 4 pasang transmitter dan receiver memerlukan biaya sebesar Rp400.000,00.
Keyword: frekuensi, transmitter, receiver, ASK, modulasi

Judul: Sistem Notifikasi Pemesanan Makanan Berbasis Mikrokontroler Dengan Radio Frequency
Abstrak: Food ordering system in Indonesia is still inefficient because there is no tool that can reduce the notification queue and replace the function of servars. This study aims to develop a cheap and simple notification system for food ordering based on microcontroller with radio frequency. The system consists of 2 main devices: a transmitter for the seller and a receiver for the customer. These devices are connected to each other by a radio signal with a frequency of 433 MHz using Amplitude Shift Keying (ASK) modulation. It is found that this device can make the queuing system becomes more efficient by giving notification in the form of LED light and buzzer sound. The maximum distance between the transmitter and receiver is 70-80 m.
Keyword: Bogor Agricultural University (IPB), transmitter, receiver, radio frequency, microcontroller, amplitude shift keying

Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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