Judul: Hospital Strategic Plan by Analyzing the Schedule of Operating Rooms.
Abstrak: Rumah sakit memiliki keterbatasan dalam melayani operasi yang diperlukan oleh pasien. Keterbatasan tersebut disebabkan oleh beberapa faktor antara lain banyaknya ruang operasi, banyaknya ahli bedah, dan jam kerja di rumah sakit. Dengan adanya keterbatasan tersebut maka operasi dapat ditunda atau dibatalkan. Penjadwalan operasi dapat dilakukan dengan menggunakan model matematika. Salah satu metode penjadwalan ruang operasi di rumah sakit adalah menggunakan mixed integer programming. Tujuan dari penulisan karya ilmiah ini adalah memodelkan masalah penjadwalan ruang operasi dalam bentuk mixed integer programming dan menyelesaikan model tersebut untuk meminimumkan biaya yang disebabkan oleh adanya penundaan pelaksanaan operasi, pembatalan pelaksanaan operasi, dan kekurangan jam penggunaan ruang operasi. Masalah penjadwalan ini memerlukan data perkiraan permintaan operasi pasien rawat inap, rawat jalan, dan pasien darurat, dan banyaknya ruang operasi berdasarkan spesialisasi pengobatan. Penyelesaian dengan menggunakan software LINGO 11.0 memberikan beberapa informasi antara lain banyaknya penggunaan ruang operasi biasa dan darurat, penundaan operasi bagi pasien rawat inap dan rawat jalan, dan banyaknya operasi pasien rawat inap dan rawat jalan yang dibatalkan. Hasil penelitian ini dapat dimanfaatkan oleh rumah sakit untuk mengevaluasi ketersediaan sumber daya yang ada. Seiring dengan peningkatan permintaan operasi pihak rumah sakit dapat memperkirakan kondisi optimal dari banyaknya ruang operasi, ahli bedah, dan jam kerja di masa yang akan datang.
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Judul: Penjadwalan Operasi Bedah Menggunakan Integer Programming : Studi Kasus Optimasi Waktu Target Ahli Bedah di Rumah Sakit Jakarta Eye Center
Abstrak: The limitation of operation equipments, the availability of operating room and surgeon as well as the duration of time available for an operating room use, have complicated hospital management in making decision to schedule surgical operation. Each surgeon in a hospital has a target of operating time set by the hospital. Schedule should consider the available surgeon and the targeted operating time. This paper presented a model of integer programming which use the availability of operating room to time at a hospital by minimizing the total underallocation of operating room time for each surgeon, relative toward the targeted time of each surgeon, considering the limitation and availability of surgeon, equipments, and operating room. The result of this research is a surgical operation schedule with an optimum surgeon’s targeted operating time. In this case, the hospital could evaluate that the facilities owned by the hospital, such as equipment operations, operating room, and surgeon, was already sufficient
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Judul: Jumlah Polen Kelapa Sawit dan Viabilitasnya pada Tubuh Kumbang Jantan Elaeidobius kamerunicus Faust.
Abstrak: Elaeidobius kamerunicus Faust. is a weevil pollinator of oil palm. These weevil transfer pollen from male to female inflorescences of oil palm (Elaeis guineensis). The aim of the research were to study pollen load and its viability on male weevils E. kamerunicus as a pollinator of oil palm. Male weevil E. kamerunicus was submerged in etanol 70% : gliserol (4:1) solution and was rotated during 24 hours. After those, weevil was outed, the solution was sentrifugated and pollen in each individual weevil was counted with haemacytometer. Other weevils were immobilized by ethyl acetate were counted of pollen loads in each body of the weevil. To measure viability pollen, were germinated in sucrose 8% and boric acid 15 ppm solution and were counted its viability after 2 hours of treatment. Result showed that male weevil E. kamerunicus carried 3258 pollen grains. Most pollen grains were carried by weevil in the elytra (1067 pollen grains), head (495 pollen grains), and abdomen (296 pollen grains), respectively. Less pollen (27 pollen grains) attached in antenna. The pollen shape of oil palm is triangel with aperture type, that is tricolpata, 38 μm in long and 30 μm in wide. In the germination process, pollen tube’s long between was 60 μm-700 μm. Pollen viability carried by male weevils was 74,18%.
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