Judul: Sistem Informasi Geografis Berbasis Web untuk Produksi Kedelai di Indonesia Menggunakan K-Means Clustering
Abstrak: Information concerning areas that are potential for soybean production is not provided in an interactive information system that can be easily accessed by public. Nowadays, information about soybean production in all districts in Indonesia is displayed in the tabular form in the website http://aplikasi.deptan.go.id/bdsp. For that, in this study, a web-based geographic information system (GIS) was developed to manage and visualize soybean production in all districts in Indonesia. K-means clustering was performed to group data on production, productivity and harvested areas of soybean to make the coloring process become easier in GIS. The best clustering was obtained with 4 clusters and the sum square error (SSE) were 2.07, 1.53, and 0.0037 for data on production, productivity, and harvested areas of soybean, respectively. The GIS was developed using OpenGeo Suite 3.0 as the geospatial tool for managing and providing information about soybean production in Indonesia in forms of maps, tables, and graphs based on the results of k-means clustering.
Keyword: soybean production, k-means, clustering, geographic information system

Judul: Sistem Informasi Geografis Berbasis Web untuk Produksi Padi di Indonesia Menggunakan OpenGeo Suite 3.0
Abstrak: Rice is an agricultural commodity which plays an important role in economy and becomes a main food for Indonesian people. Currently, Java Island provides the largest contribution in paddy production. Ministry of Agriculture has provided information regarding paddy production in Indonesia that can be accessed by public. The existing representation of paddy production information is less interactive because the information is provided only in the tabular format. In this study, web-based geographic information system (GIS) was developed using OpenGeo Suite 3.0 software. OpenGeo Suite 3.0 is an application which bundles PostgreSQL with a spatial extension PostGIS as a database management system to interactively display information on the spread of paddy production in Indonesia and GeoServer as map server. The GIS displays information about production, productivity, and harvested areas of paddy in the form of tables, maps, and graphs. The system is useful to facilitate the public in accessing information regarding paddy production in all districts in Indonesia.
Keyword: web-based geographic information system, paddy production, opengeo, geoserver

Judul: The Effects of Hypothyroidism in the Fertility of Male Rats
Abstrak: Thyroid hormones are involved in the development and maintenance of virtually all tissues. The purpose of the study is to understand effects of the neonatal hypothyroidism in the fertility of male rats. Recent studies with juvenile rats indicate that changes in thyroid function early in life have a major impact on the endocrine and/or paracrine factors regulating testicular growth and function. However, one should keep in mind that hypothyroidism is a complex hormonal dysfunction rather than a single hormonal defect. Hypothyroidism has been also shown to reduce the secretion of GnRH (gonadotropins releasing hormone), LH (Luteinizing Hormone), FSH (Follicle Stimulating Hormone), GH (Growth Hormone) and testicular testosterone in rats. Therefore, many of the testicular changes observed in prolonged hypothyroidism could result in some degree of diminished levels of the aforementioned hormones. The transient neonatal hypothyroidism model results in the unnatural testicular development and in sperm production in neonates hence resulting in decreased fertility upon puberty.
Keyword: Hypothyroidism, Neonates, Testicular Growth, Fertility