Judul: Perencanaan Sistem Jaringan Perpipaan Bertekanan untuk Irigasi Padi Sawah di Balai Besar Penelitian Tanaman Padi (Subang, Jawa Barat).
Abstrak: Indonesian Center for Rice Research (ICRR) is a research institute that need precision and high accuracy to strengthen the analysis of research at the institute. One of those research is water balance analysis that need infrastructure such as irrigation. The objective of this research was to design burried pressure pipeline network system for paddy irrigation which starts from the determination of the diameter to the structural analysis. Diameter determination is done by combining the Bernoulli and Darcy-Colebrook-White equation, whereas the structure analysis following the standard of American Water Works Association (AWWA) M41 for pipes made of ductile iron. The results of design indicated that the water from the inlet could not flow by gravity, thus requiring the pump with head difference between the inlet to the outlet was 2.73 m. The main pipe diameters were respectively 36, 30, 24, and 18 in the pipeline while the branch was uniformed with 8 in. Hydraulic gradient along the flow was positive and exceeded the minimum operating pressure at each node, making sure the water can flow throughout both the main and branch pipes. Results of the analysis of the structure of the pipeline due to external loading indicated that the total pressure was still below the maximum bending stress. Total pressure also remained under maximum pressure deflection. Therefore, the pipe can withstand a design load and secure from buckling factor and ring deflection.
Keyword: ductile iron, hydraulic gradient, Indonesian Center for Rice Research, irrigation, pressurized pipe

Judul: Perencanaan dan Perancangan Saluran Drainase Daerah Irigasi di Balai Besar Penelitian Tanaman Padi Subang, Jawa Barat.
Abstrak: Drainage is one of the technical actions to reduce excess water from rain water, seepage, or excess irrigation water on an area so it can function optimally. The purpose of this research are designing drainage channels, designing channels dimension, and modelling planned drainage channels. This research was conducted during months of February to May 2015 at BB Padi, Sukamandi, Subang. The stage of this research are depiction of topographic maps, determination the location of drainage channels, determination of runoff discharge design and drainage channel dimensions, planning sewers, evaluation the performance of drainage channel. Soil texture used i.e. sandy loam. The distance between the drainage channels were designed every 200 m in accordance with the draft consolidation using reference layout of rice fields in Japan. The direction of water flow leads to the North and South, with the main drainage, tertiary drainage, ii and Taman Burung Sukamandi as a downstream of the water flow. Rainfall distributions design with Gumbel method used for a 2 year period (76.25 mm). Stream runoff is planned in each plot. Channel drainage system construction with open channels are not resistant to erosion. The intersection between the channel and the JUT branch cause the need of culvert planning. The design of the channel dimensions made uniform in both the upper and lower channels to sewer plans Evaluation of channel plan performance assessment was done as a channel drain water runoff.
Keyword: drainage channel, Gumbel, land consolidation, rainfall

Judul: Beberapa aspek toxoplasmosis pada domba
Abstrak: Toxoplasmosis merupakan penyakit yang disebabkan oleh infeksi protozoa yaitu Toxoplasma gondii. Menurut Kudo (1960), Toxoplasma digolongkan dalam filum Protozoa, sub filum Plasmodroma, kelas Sporozoa, sub kelas Telosporidia, ordo Haemosporidia, famili Babesiidae dan genus Toxoplasma. Selanjutnya Levine et al. (1980) dalam Thomas Cheng (1986), memngklasifikasikan Toxoplasma sebagai berikut : filum Apicomplexa, kelas Sporozoa, sub kelas Coccidia, ordo Eucoccidiida dan sub ordo Eimiriina dengan genus Toxoplasma. Toxoplasma gondii berkembang biak secara seksual dan aseksual. Stadium seksual terjadi di dalam epitel usus ku- cing rumah dan famili Felidae lainnya, sedangkan perkembang biakkan secara aseksual terjadi pada induk semang antara yaitu carnivora, herbivora dan mamalia (Levine, 1973). Kucing mengeluarkan ookista yang belum bersporulasi dalam feses selama 3 10 hari. Hal Ini terjadi setelah kucing tersebut memakan tikus yang telah terinfeksi bradizoit atau trofozoit atau mencerna ookista (Dubey dan Frenkel, 1976 dalam Georgi, 1980). Induk semang antara dapat terinfeksi Toxoplasma gondii bila tertulari ookista bersporulasi dari feses kucing, takhi- zoit atau bradizoit yang terdapat dalam jaringan induk semang antara yang lain, dapat juga terjadi karena terinfeksi takhizoit melalui penularan secara transplasental (Soulsby 1982). Dalam imunitas terdapat satu hal yang menarik yaitu kemampuan Toxoplasma untuk bertahan dalam makrofag yang seca- ra umum dapat membunuh organisme ekstraselular. Menurut Ian Tizzard (1981), respon kekebalan yang perta- ma dari tubuh terhadap parasit Toxoplasma gondii adalah res- pon kekebalan selular (CMI response). Sebagian besar infeksi oleh Toxoplasma gondii tidak menunjukkan gejala klinis yang jelas. Pada domba gejala klinis yang dapat terlihat berupa demam, dispnoe. tremor secara umum dan kadang-kadang terlihat adanya inkoordinasi gerak. Tetapi gejala yang paling umum terjadi adalah plasentitis diikuti abortus atau terjadi kematian foetus pada saat 3 atau 4 minggu terakhir dari kebuntingan. Selanjutnya pada domba gejala dari dikatakan juga gejala yang dapat terlihat betina adalah "circle walking" yang merupakan encephalitis (Soulsby, 1982)…dst
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