Judul: Aplikasi Pencarian Tempat Wisata Kuliner Di Kota Bogor Berbasis Location Based Service Dan Geotagging Pada Android
Abstrak: Bogor sebagai salah satu kota wisata memiliki destinasi kuliner yang digemari oleh banyak wisatawan. Aplikasi pencarian wisata kuliner merupakan suatu fasilitas yang dibutuhkan oleh wisatawan. Penelitian ini mengembangkan sebuah aplikasi pencarian tempat wisata kuliner berbasis location based service (LBS) dan geotagging pada Android. Aplikasi pada penelitian ini memiliki 9 kebutuhan fungsional, yaitu melihat peta wisata kuliner, melihat daftar restoran terdekat, melihat daftar semua restoran/menu kuliner, melakukan pencarian restoran/menu kuliner, melihat detail restoran/menu kuliner, menambah data restoran/menu dengan foto geotagging, menampilkan rute perjalanan, memberi rating restoran/menu kuliner, serta pengaturan tipe tampilan peta. Aplikasi menggunakan Google API sebagai penyedia peta dan penyedia rute ke lokasi wisata kuliner. Aplikasi ini juga mengimplementasikan geotagging untuk menambahkan data lokasi ke server. Evaluasi usability melalui kuesioner pengguna pada sistem menghasilkan nilai 84.78%.
Keyword: Android, geotagging, kuliner, LBS

Judul: Aplikasi Mobile GIS Pencarian Tempat Olahraga di Bogor.
Abstrak: The location of sport facilities that are difficult to find has made location search system such as location based services (LBS) more important. Global positioning system (GPS) feature on the smartphone makes it possible to use smartphone as a navigation tool. The purpose of this research is to develop a LBS application that is used as mobile GIS search location in Bogor. The application is developed by using the Android-based smartphones, GPS to obtain the position of users, and Google Maps as map viewer. This research was carried out by using the prototype method that consists of several stages, namely: problem identification, prototype development, operational system coding by using App Inventor, and testing. Evaluation was conducted until the system is acceptable and can perform the desired functionality. The result of this research is an application system that can show the locations of sport facilities in Bogor.
Keyword: location based service, Google Maps, global positioning system, App Inventor, Android

Judul: Comparison of HIV Model with and without Time Delay
Abstrak: Acquired immunodeficiency syndrome (AIDS) is the reduction of the human immune system. AIDS is caused by human immunodeficiency virus (HIV). No medicine has been found for this desease until recently. An AIDS therapy is usually performed with highly active antiretroviral therapy, namely reverse transcriptase inhibitors, protease inhibitors and combination of both. Various models have been developed to explain the immune system of patients with AIDS, namely the HIV, response and the time delay model. This paper discusses the comparison between the dynamics of the HIV virus, the dynamic response of protease inhibitors and dynamics of time delay. The dynamics model of HIV is influenced by the level of white blood cells produced and the rate of its death. Dynamics of protease inhibitors on the response and the time delay model is influenced by the death rate of infected white blood cells and the failure rate of treatment.
Keyword: