Judul: Penjadwalan Perawat Menggunakan Goal Programming: Studi Kasus di Rumah Sakit Hasanah Graha Afiah Depok
Abstrak: One of the problems that frequently arises in the hospital management system is the nurse scheduling problem. A proper schedule is needed in order to avoid exhausted suffered by nurses, both physically and psychologically, which subsequently may deteriorate their performance. In this work, nurse scheduling problem is modeled as preemptive and nonpreemptive goal programming. The objective is to minimize deviations caused by constraints posed by hospital management and nurses themself. The optimization problem is then applied to nurse scheduling at Hasanah Graha Afiah Hospital Depok.
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Judul: Penjadwalan Perawat Menggunakan Fuzzy Goal Programming: Studi Kasus di Rumah Sakit Hasanah Graha Afiah Depok
Abstrak: Rumah sakit seringkali masih menggunakan cara manual dalam menyelesaikan masalah penjadwalan perawat. Cara seperti ini kurang efisien dan rentan terhadap kesalahan saat melibatkan jumlah perawat yang relatif besar. Tujuan karya ilmiah ini ialah memodelkan masalah penjadwalan perawat menggunakan metode fuzzy goal programming. Fungsi objektifnya yaitu memaksimumkan derajat kepuasan fungsi keanggotaan dari setiap fungsi tujuan fuzzy. Berdasarkan pemodelan ini diperoleh jadwal perawat dengan jumlah hari kerja dan jumlah shift yang didapat setiap perawat yang lebih baik dan tidak ada pola libur masuk libur. Kata kunci: fuzzy goal programming, pemodelan, penjadwalan, perawat., Hospitals often still use manual methods in solving nurse scheduling problems. This method is less efficient and prone to errors when involving a relatively large number of nurses. The purpose of this scientific paper is to model the problem of scheduling nurses using the fuzzy goal programming method. The objective function is to maximize the degree of satisfaction of the membership function of each fuzzy goal function. Based on this modeling, nurses' schedules with the number of working days and the number of shifts each nurse gets are better and there is no pattern of holidays in the holidays. Keywords: fuzzy goal programming, modeling, nurse, scheduling.
Keyword: fuzzy goal programming, modeling, nurse, scheduling

Judul: Pengaruh Jumlah Bahan Pretanning dan Minyak Biji Karet (Hevea brasiliensis) Terhadap Mutu Kulit Samoa. Di
Abstrak: Animal hides or skins are the most valuable by product of the meat industry. Most of those hides are converted into leather by leather tanning process. Chrome based tanning is the most popular tanning process. At the chrome based tanning process, a lot of amount chrome are throw away into the environment that make a significant effect to the biological and ecological environment damaged. Due to concerns over the use and disposal of chromed tanned leather, the leather industry is now facing increasing scrutiny over its use of chrome as tanning agent. The use of non-chrome tannages has gradually become pre-eminent to producing leather, particularly in the European automotive leather markets. Chamois leather is one of leather product. It is produced from animal hides/skins by oil tanning process, usually with fish oil. High price and odour problems to the chamois leather that produced using fish oil motivate to do some research to solve that problems. Rubber seed oil is an oil that predicted can substitute fish oil. Pretanning process is needed to increase the oil penetration and protects the pelt from putrefying during oxidation periods (Khrisnan et al., 2005). Relugan GT 50 is the agent that used on this research. Relugan GT 50 is an aldehyde tanning agent, produced by BASF. This research was aimed to find out the effects of Relugan GT 50 concentration (offer) and rubber seeds (Hevea brasiliensis) oil to the chamois leather’s quality. Beside that, this research is also aimed to decide the best combination of the factors to produce chamois leather also to know the chamois leather characteristics. The preliminary research was carried out by analyzing the rubber seed’s kernel and eggshell as well as physico-chemical properties of the rubber seed oil. The main research was done by tanning the skin with Relugan GT 50 in concentrations of 1.5, 3.0 and 4.5% followed by rubber seed oil concentrations of 10, 20, and 30%. The experimental design used was completely randomize factorial design. The preliminary research shows that rubber seed’s kernel was 49% and rubber seed’s eggshell was 51%. The rubber seed’s oil characterstics were density of 0.94 (g/cm3), viscosity of 48,4 centistokes, colour of 2713 PtCo units, inodine value 113 g iod/ 100 g, peroxide value of 24 miliequivalent/1000 gram oil, acid value of 15 mg KOH/g oil and FFA content of 5.8%. The research shows that Relugan GT 50 concentration significantly affected shrinkage temperature (Ts) and pH; rubber seed oil concentration significantly affect the organoleptic properties of the leather. The optimum conditions for the tanning were Relugan GT of 3.0% concentration and 10% rubber seeds oil. The physical properties of the leather were shrinkage temperature of 75oC, thickness of 0.92 mm, tensile strength of 21.50 N/mm2, elongation at break of 144%, tear strength of 55.77 N/mm, water absorption of 266% (2 hours) and 299% (24 hours). The chemical properties were oil content of 2.5%, ash content of 1.2% and pH of 8. The organoleptic properties were softness of 7–8, colour of 8-9, and odour of 8-9.
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