Judul: The influence of individual charateristic and the role of extension worker on increasing household food diversification
Abstrak: The Government of Indonesia has launched accelereted diversification of food consumption program (P2KP). This program aims to encourage people in improving food consumption patterns, nutritious, balanced, and safe nutition. Bogor district is one of the districts managing P2KP program. The program involves Food Security and Extension Agency for Agriculture, Fisheries and Forestry (BKP4K) as program implementers. The objectives of the research are: (1) to identify community perceptions of participants and non-participants of P2KP program towards food diversification; (2) to analyze the effect of individual characteristics on community perceptions toward food diversification; (3) to analyze the effect of individual characteristics to the level of diversification of household; (4) to analyze the effect extension role on community perceptions toward food diversification; (5) to analyze the effect of extension of the role on the level of food diversification of household and; (6) to formulate extension strategies to improve household food diversification. Research using ex Post facto design. Field research was conducted in sub District of Dramaga, Cibungbulang and Ciomas of Bogor District West Java Province from February 2013 to June 2013. The data were analyzed qualitatively and quantitatively. Quantitative analysis used descriptive and inferential statistics. The analysis consisted of frequency distributions, while the inferential statistics used stepwise regression analysis based on SPSS 17.0 software. The results showed: (1) perception of P2KP program participants and non participant at the high category with a mean score of 2.97 and 2.73 respectively of a maximum score of 3.0; (2) the individual characteristics that significantly affect perceptions in terms of diversification are: age, formal education and keterdedahan on TV and newspaper media; (3) the individual characteristics that affect the level of food diversification of household is age, education formal and income; (4) the roles of extension personnel as communicator and motivator affected significantly the community perception of food diversification is the role as role as a communicator and motivator; (5) the role of extension personnel did not affect the level of food diversification of household; (6) need to change food diversification extension strategy both in terms of the target extension to the method used, for example the father and adolescents as subjects of education and the use of television media to explain the importance of diversification.
Keyword: diversification of household food, perception, role of extension

Judul: Analisis Preferensi Pangan Masyarakat Dan Daya Dukung Gizi Menuju Pencapaian Diversifikasi Pangan Kabupaten Bogor
Abstrak: General objective of this study is to analyse Community’s Food Preference and nutritional carrying capacity in the direction of food diversification achievement in Bogor Regency. The spesific objectives are (1) to analyse individual characteristic sample i.e. last education, salary per capita, expenditure per capita, (2) to identify environment characteristic i.e. number of family, job, information from mass media, and production, (3) to identify food preference, (4) to analyse the correlation between food preference with individual and environment characteristic, (5) to analyse local food’s production and preference. Design of this study was cross sectional study with cluster analysis and simple random sampling. Number of sample is 106 for two region characteristics. Data were analized by Microsoft Excel and SPSS 16.0 for Window. Food preference of Bogor Regency community shows that almost sample like to 9 food groups in Desireable Dietary Pattern. The reason of this food preference is food factor (taste, nutrition content, food processing). Local food potential in order to reach food diversification consider to food preference and production. It also an alternative way to fulfill carbohidrat, animal and plant based protein, vitamin and mineral needs. Output of Chi square dan Spearman analysis show that almost food don’t have correlation (p>0.05) with individual and environmental characteristic. Potensial local food based on food preference and production as alternative food for food diversification i.e. corn, cassava, sweet potato, taro (carbohydrate sources): fish, mung bean, tempe, tofu (protein sources); and green leaf vegetables, cow peas, banana and guava (vitamins and minerals sources). Production data shows that corn, fish, mung bean, and soybean production need to be increased its production or import from the other region, especially in West Java. This analysis need to support food preference and by itself it will also support food diversification.
Keyword: 

Judul: Cycle Hamilton pada Graf Lengkap, Graf Regular, dan Graf 2-Connected 4-Regular Berorder Kurang dari Sepuluh
Abstrak: Suatu graf disebut graf Hamilton apabila graf tersebut memuat cycle Hamilton, yaitu cycle yang melewati setiap vertex tepat satu kali. Menentukan keberadaan cycle Hamilton pada suatu graf dapat menggunakan syarat cukup yang berupa teorema-teorema yang telah diperkenalkan sejak tahun 1950-an. Beberapa syarat cukup yang dibahas dalam karya ilmiah ini adalah syarat cukup yang berhubungan dengan graf lengkap dan graf regular. Suatu graf lengkap berorder 𝑛������ ≥ 3 dan graf r-regular berorder 𝑛������ ≤ 2𝑟������ + 1 merupakan graf Hamilton, Karena kedua graf tersebut memuat cycle Hamilton. Selanjutnya, syarat cukup tersebut digunakan untuk menentukan keberadaan cycle Hamilton pada graf 2-connected 4- regular berorder kurang dari 10.
Keyword: graf Hamilton, graf regular, graf lengkap, graf 2-connected 4-regular