Judul: Utilization of the media internet as information source for ornamental plant farmers in Bogor
Abstrak: Ornamental plant is one of the agricultural products to be developed. For such necessities, the ornamental plant farmers need informations from the right sources. One of the sources frequently used is the internet media. Now adays, the people of Indonesia have been familiarized to use such a useful media for many field of development, including the agriculture. At present, the information on the growth and development of agriculture is still very scarce. Whereas, farmers need the right information of agricultural development to support their functions. The question is at what extent do the ornamental plant farmers have utilized internet as the source of information on cultivation techniques, marketing, or the selection of ornamental plants. Internet media is defined as a vast network which is licensed not only to be able to connect each other to disseminate and share digital files, but also to shorten the distance between countries. This research analyzes: the characteristics of ornamental plant farmers, their motivation in using internet media, their perception about internet media, and the internet media usage as a source of information; the relationship between the characteristics of ornamental farmers and internet media utilization as a source of information; the relationship between farmers’ perceptions and internet usage as the sources of information; and the relationship between perceptions of farmers with the use of the internet as an ornamental plant resources. The study was conducted in the Bogor branch of Indonesian Floriculture Association. The populations in this study are all the 35 ornamental plant growers who use the internet as a source of information. Data were collected through questionnaires, observation, in-depth interviews and documentation from June to December 2012. The Data collected in this study consists of primary data and secondary data. Data were analyzed by descriptive statistics and inferential statistical analysis. Descriptive statistics were used to describe the data in general by using frequency, percentage, score and total score. Inferential statistical analysis is used to examine the relationship between variables X and Y with the Spearman Rank test and Chi Square. The results show that the age of ornamental plant farmers was dominated by 35- 51 years of age and most were female. Most farmers have low level of formal education, and most farmers had attended non-formal education. On the characteristics of learning resources, the majority of farmers conduct friends as a source of learning, Most of the farm-scale farmers is low (<600rb/month) and most have land only <300 square feet (narrow). Most farmers have high accessibilities of media. Regarding motives, farmers generally have a higher motive in using the internet as a source of information. Most of the farmers use internet media to add information, to broaden horizons, to overcome the problem, to expand social networks and to satisfy curiosity. Most farmers have a pretty good perception about the internet media and internet media utilization gains. On the use of the internet as a source of information, most of the farmers use the internet as a source of information on cultivation techniques, crop marketing and selection of plant species. The characteristic of farming experience has
Keyword: internet media, ornamental plant, information source

Judul: Utilization of information by the vegetable farmers (Case of Ciaruteun Ilir Village, Cibungbulang Subdistrict, Bogor Regency, West Java Province)
Abstrak: Utilization of vegetable farming informations is one of important matter for the farmers in practicing a variety of information relating to farming of vegetables obtained from different types of information sources, including land-use pratices, regular irrigation, seed selection, fertilization, pest eradication and crop diseases, post-harvest processing , marketing and other information relevant to vegetable farming. This study objectives were (1) To analyze the utilization of information by the vegetable farmers, (2) To analyze relationship characteristics of vegetable farmers to the level of exposure to sources of information, (3) To analyze relationship of perception of farmers to agricultural services with the level of exposure to sources of information; and (4) to analyze relationship between the level of exposure to sources of information to the level of utilization of information. The number of samples was 50 vegetable farmers. The important results showed (1) The utilization rate of farm information in most vegetable growers (54 percent) were categorized as being the average of one to two information practices, (2) There is significant correlation between characteristic of vegetable farmers to levels of exposure sources information those are age, education, income, experience of vegetable farming, the number of dependents and the perception of farmers towards agriculture (affective dimension) by the number of information sources, (3) There is significant correlation between the vegetable farmer perceptions of agricultural services to the levels of exposure to multiple sources information that is the perception of farmers to extension agents, farmers, merchants and traders of agricultural production, (4) There is significant correlation between the rate exposure to sources of information that is the number of sources of information and variety of information obtained from various sources of information to the level of utilization of informations
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Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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