Judul: Salmonella species occurrence related to coliform counts, and the  hygiene and sanitation conditions in ready-to-eat food outlets.
Abstrak: The presence of enteric bacteria like Salmonella and certain coliform groups can be very harmful. Salmonella is responsible for serious and sometimes fatal food poisoning. Coliforms are an indication of whether there has been fecal contamination or the determine the general hygiene and sanitation status of an area; mostly employed to indicate food safety and sanitation conditions of the work areas in general including environment, equipments, utensils, food handlers, and raw materials and the distribution network. Both groups of organisms are of major concern in the food sector. Ready-to-eat (RTE) foods provide a source of possible cause for some of the most dangerous foodborne illnesses. Examples of ready-to-eat foods sold in the RTE food outlets around Bogor Agricultural University area are Fat cakes, doughnuts; corn-on-the-cob, crisp extruded products (Kurupuk), beef, goat meat, fish and chicken, apples, bananas, pears, oranges, grapes and mangoes, soft drinks, juices, and ice pop, Rice is mainly served with the meaty products or vegetarian choices like gado-gado. The number of customers to have one of the outlets serve when filled ranges (outlet I) from 6 􀂱 8 people; (outlet II) 14 􀂱 16 people; (outlet III) more than 20 people.
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Judul: Kasus Salmonellosis Disebabkan Konsumsi Olahan Daging Ayam Di Malaysia
Abstrak: Salmonella spp. is one of the most frequently isolated foodborne pathogens. This literature study aims to examine more in depth the factors that support the incidence of Salmonellosis in humans related to the consumption of processed chicken products, based on cases reported in Malaysia. Secondary data of Salmonellosis cases in Malaysia were obtained from several credible articles, journals, books and websites from 2013 to 2016. Based on existing data, Salmonellosis cases occur in consumers who consume food from school canteens provided in large quantities, religious celebrations, weddings and night markets. Salmonellosis cases frequently occur in school children who consume food from the school canteen. Based on the results of the investigation, it was found that the main causes of Salmonellosis include chicken meat contaminated by Salmonella spp. due to cross-contamination of the equipment used, improper storage and cooking methods of chickens, lack of hygienic measures for food processors when processing food, ignorance of food processors regarding hygiene and sanitation, misuse of temperature during food preparation, storage and distribution, violations of hazard analysis and control points critical (HACCP), exposure of food to the environment for a long time, the cooking time is short and the time between cooking and consumption is too long. Providing food safety education and adequate sanitation facilities in school canteens, weddings and night markets is highly recommended to increase food safety from chicken dishes. Keywords: Salmonellosis, chicken meat, Malaysia, chicken dishes, Salmonella spp. is one of the most frequently isolated foodborne pathogens. This literature study aims to examine more in depth the factors that support the incidence of Salmonellosis in humans related to the consumption of processed chicken products, based on cases reported in Malaysia. Secondary data of Salmonellosis cases in Malaysia were obtained from several credible articles, journals, books and websites from 2013 to 2016. Based on existing data, Salmonellosis cases occur in consumers who consume food from school canteens provided in large quantities, religious celebrations, weddings and night markets. Salmonellosis cases frequently occur in school children who consume food from the school canteen. Based on the results of the investigation, it was found that the main causes of Salmonellosis include chicken meat contaminated by Salmonella spp. due to cross-contamination of the equipment used, improper storage and cooking methods of chickens, lack of hygienic measures for food processors when processing food, ignorance of food processors regarding hygiene and sanitation, misuse of temperature during food preparation, storage and distribution, violations of hazard analysis and control points critical (HACCP), exposure of food to the environment for a long time, the cooking time is short and the time between cooking and consumption is too long. Providing food safety education and adequate sanitation facilities in school canteens, weddings and night markets is highly recommended to increase food safety from chicken dishes.
Keyword: Salmonellosis, chicken meat, Malaysia, chicken dishes

Judul: Invers dari Matriks Tridiagonal Jacobi
Abstrak: Suatu matriks berukuran n×n dinamakan matriks tridiagonal jika untuk . Karya ilmiah ini memberikan algoritma yang mudah untuk menemukan invers ( dari matriks tridiagonal Jacobi yang simetrik dan nonsimetrik. Setiap elemen pada matriks tridiagonal ini adalah bilangan real. Terdapat 3 lema dan 2 teorema untuk menentukan . Lema pertama menunjukkan persamaan utama dalam membuktikan lema-lema dan teorema-teorema selanjutnya. Invers dari matriks yang simetrik dibuktikan oleh lema kedua yang menunjukkan elemen-elemen baris ke- dari . Selanjutnya, lema kedua dilengkapi dengan teorema pertama yang menunjukkan elemen-elemen dengan . Invers dari matriks yang nonsimetrik dibuktikan oleh lema ketiga yang menunjukkan elemen-elemen dengan dan elemen-elemen dengan dibuktikankan oleh teorema kedua.
Keyword: symmetric, nonsymmetric, matrix