Judul: Analisis Portofolio Investasi oleh Investor Bertipe Risk Averse.
Abstrak: Investasi adalah penanaman modal yang dilakukan untuk memperoleh keuntungan di masa yang akan datang. Agar dapat memaksimumkan keuntungan yang akan diperoleh atau meminimumkan risiko dalam suatu investasi saham di pasar modal, para calon investor membentuk portofolio saham. Tujuan dari karya ilmiah ini adalah menganalisis sensitivitas risk averse dan ragam dengan nilai parameter yang berbeda oleh investor dengan tipe risk averse. Sebagai ilustrasi untuk menjawab tujuan digunakan data harga penutupan saham McDonald, Google, dan AT&T mulai dari 12 Desember 2013 sampai 12 Desember 2016 yang diperoleh dari situs http://finance.yahoo.com. Hasil yang diperoleh menunjukkan bahwa nilai parameter faktor risk averse tidak berpengaruh terhadap proporsi kekayaan yang dialokasikan pada saham pembentuk portofolio. Sedangkan ragam berpengaruh terhadap proporsi kekayaan yang dialokasikan pada saham pembentuk portofolio, yakni semakin kecil ragam imbal hasil saham semakin besar proporsi kekayaan yang dialokasikan pada saham pembentuk portofolio tersebut.
Keyword: investasi, portofolio, risiko, risk averse

Judul: Membentuk Portofolio Beresiko Yang Optimal Dengan Seleksi Porto Folio Markowitz
Abstrak: Perkembangan perekonomian secara global menyediakan banyak kesempatall bagi investor Ilntuk berinvestasi baik secara riil maupnn secara fmansial. Dalam melakukan iuvestasi, investor melalui suatu proses yang dinamakan proses investasi. Langkah awal dalam melakukan investasi adalah mellentukan tujuan investasi dan jumIah kekayaan yang akan diinvestasikan. Karena adanya hubnngan positif antara resiko dan tingkat kembalian suatu investasi maka investor harus mempertimbangkan resiko kerugian yang mllilgkin teljadi. Untuk menghindari atau memperkecil kerugian dilakukan diversifikasi. Dengan adanya diversifikasi, resiko dari portofolio berkurang.
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Judul: Biology and ecology of the buffalo fly, haematobia exigua de meijere (diptera:muscidae)
Abstrak: The life history of the buffalo fly was observed at room temperature of 27°-29.5°C and at a relative humidity of 48-68 percent. The eggs hatched after 17-22 hours, with an average of 18 hours. First instar larvae measured 1.25 + 0.16 mm long and 0.27 + 0.037 mm wide. reach the second larval stage. It took 6-12 hours to the second instar larvae measured 2.676 +0.187 mm long and 0.353 +0.028 mm wide. The second instar took about 12-24 hours to reach the third larval stage. The third instar measured 6.833 + 0.189 mm long and 0.919 + 0.051 mm wide. It took about 2-3 days for the third instar to become pupae. Duration of the pupal stage was about 5-7 days before the adults emerged. Under laboratory condition, the buffalo fly completed its life cycle in 9.5 to 10.5 days, whereas under field condition it took 9-14 days with an average of 10.5 days. The growth ratio which was based on the measurements of the cephalo-pharyngeal skeleton of each instar was 1.797. The preoviposition period was 8-12 days and mating usually occurred on the 6th or 7th day. The longevity of the male was 29 days, whereas it was 32 days in the female. The range of egg production under laboratory condition was between 20-139 per female fly. The belly and hind legs of the carabao were the most preferred habitat either during cloudy and cool dry or shiny and warm day. When the weather was clear and the carabao was in the shade, the flies tended to be more distributed particularly on the shoulder, dewlap, back and horns. The carabaos had relatively fewer Musca sp. and Stomoxys calcitrans than cattle; never the less carabaos had a higher infestation of buffalo fly than cattle. Oviposition occured either during the day or night but the buffalo flies were more active during the night than in the day time. The effect of various lengths of exposure time of manure in relation to the oviposition was profound. observed, the maximum number of the buffalo flies was occurred when the dung was exposed for 30 minutes. With increasing time of exposure the number and variety of insects also increase. It was evident that Sepsidae and psychodidae were the most dominant insects emerging from the dung. The number of buffalo flies also increased with increasing
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