Judul: Analisis dan Perbaikan Sistem Kerja Berdasarkan Metode Studi Gerak dan Waktu Pada Lini Produksi Squash Orange di PT. Buanasari
Abstrak: Assessment of work productivity should be done routinely by a company. Achieving high productivity required special attention to efficiency and effectiveness of work. For that reason, there was a need to analyze working movement and work time required for one cycle of process. Time required at the beginning and the end of a process shift was different depends on the decrease of labor’s motivation and stamina, which related to fatique condition of labor. Fatique could be caused by working conditions and work capacity of workers. Motions were analyzed and grouped according to the cycle and type of motion. Average time of each motion adjusted with Westinghouse rating and allowances to obtain the standard time. Standard time for the squash orange production from was 25.46 seconds/bottle, while the standard time for the packaging process was 20.22 seconds/bottle. Productivity can be calculated by dividing the daily product output with the number of workers and duration to finish one cycle of process. It was obtained from the calculation that each production worker’s productivity was 36 bottles/hour, while the packaging worker’s productivity was 7 cartons/hour.
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Judul: Analysis and repair work system based on time and motion studies in production proccess of long stick biscuit
Abstrak: Every company want to increase their productivity. To achieve high productivity required special attention to effectiveness and efficiency of work accomplished. For that reason there is a need for analysis working movement and labor time required for one cycle of proccess. Time required to perform a proccess at the beginning and the end of a shift is different, related to decrement of labor’s motivation and stamina due to fatigue. Fatigue can be caused by working conditions, work capacity of workers, and others. Standard time is a “factor looseness and the adjustment factor is summed with the cycle time”. Standard time for the proccess of preparation of raw flour is 112.68 seconds, while the standard time for the packaging process is 90.74 seconds. Productivity can be calculated by dividing the output of that day with the number of workers and duration to accomplish one proccess, was obtained from the calculation of productivity of each workers in the process of preparation of wheat flour is 400 kilogram/hour, while the packaging productivity of each workers is 3.76 cartons/hour.
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Judul: Distribution and Diversity of Ectoparasite Mites on Geckos in Indonesia
Abstrak: Data on the diversity and dispersal of parasitic mites on house geckos in Indonesia are very scarce. In this work, the distribution and diversity of mites living on three species of house geckos, namely Cosymbotus platyurus, Hemidactylus frenatus, and H. garnotii collected throughout Indonesia, has been elaborated. Geckos and mites were captured and immediately preserved in 70% ethanol. Whole mount of the mites was prepared by clearing in lactophenol followed by mounting on polyvinyl lactophenol solutions. The SEM preparation was conducted to examine the detail morphological characters of the mites. The results showed that among 448 individuals of geckos, 221 geckos were infected by Geckobia mites. Prevalences of C. platyurus, H. frenatus, and H. garnotii infested by mites were 14.8%, 50.69%, and 79.6%, respectively. Three different spesies of Geckobia (G1, G2, and G3) could be differentiated; and based on similarities of their morphological characters to ones described in published literatures, Geckobia G2 is Geckobia glebosum and Geckobia G3 is Geckobia bataviensis while G1 could not be identified to the species level. The highest mean intensity of Geckobia G1 infestation was found on H. garnotii (I=7.0), G. glebosum infestation on H. frenatus (I=3.5), and G. bataviensis infestation on H. garnotii (I=11.8). In general, C. platyurus was infested by the least number of mites. Geckobia G1 were found living on the skin folds on the claws, G. glebosum were found mainly on the body and thigh, and G. bataviensis were found on almost all parts of the host’s body. Geckobia mites are distributed randomly throughout Indonesian Archipelago, following the pattern of distribution of their hosts. So it is concluded that Geckobia G1, G. glebosum, and G. bataviensis are sympatric.
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