Judul: Pengaruh Premi, Klaim, Hasil Investasi dan Biaya Operasional terhadap Laba Perusahaan Asuransi Umum
Abstrak: Profitabilitas merupakan kemampuan perusahaan untuk mendapatkan laba dalam periode tertentu. Hubungan antara profitabilitas dengan laba biasanya berbanding lurus. Perusahaan Asuransi Umum, termasuk PT XYZ, menyadari bahwa laba yang didapatkan perusahaan dapat tercermin dari premi, klaim, hasil investasi, dan biaya operasional yang ada pada perusahaan. Maksimisasi laba mencerminkan keberhasilan tujuan perusahaan. Tujuan dari penelitian ini adalah untuk mengidentifikasi pengaruh premi, klaim, hasil investasi, dan biaya operasional terhadap laba perusahaan. Data yang digunakan dalam penelitian ini merupakan hasil wawancara, laporan keuangan, dan disclosure PT XYZ periode 2007-2017. Metode analisis yang digunakan adalah analisis linear berganda, uji asumsi klasik, dan uji hipotesis dengan menggunakan bantuan program EViews. Berdasarkan hasil penelitan, secara simultan semua faktor berpengaruh signifikan terhadap laba perusahaan, namun secara parsial tidak semua faktor berpengaruh signifkan. Premi berpengaruh positif dan signifikan terhadap laba, klaim berpengaruh negatif dan tidak signifikan terhadap laba, investasi berpengaruh positif dan signifikan terhadap laba, dan biaya operasional berpengaruh negatif dan tidak signifikan terhadap laba perusahaan.
Keyword: Asuransi Umum, Biaya Operasional, Investasi, Klaim, Laba

Judul: Pengaruh Klaim dan Hasil Investasi terhadap Laba Perusahaan Asuransi Syariah
Abstrak: Laporan keuangan merupakan instrumen yang berisi variabel penting untuk menganalisis dan mengambil keputusan keuangan perusahaan. Tujuan karya ilmiah ini ialah menganalisis pengaruh klaim dan hasil investasi terhadap laba perusahaan asuransi syariah tahun 2011-2020. Metode penelitian yang digunakan yaitu regresi linear berganda menggunakan metode kuadrat terkecil. Pendugaan laba perusahaan menggunakan dua variabel (klaim dan hasil investasi) menghasilkan koefisien determinasi terbesar dibandingkan hanya menggunakan satu variabel. Hasil koefisien determinasi menunjukkan bahwa klaim dan hasil investasi berpengaruh terhadap laba perusahaan. Hasil investasi memiliki pengaruh terbesar terhadap laba perusahaan dibandingkan dengan klaim., Financial statements are instruments that contain important variables for analyzing and making financial decisions of companies. The purpose of this study was to analyze the influence of claims and investments on the profit of sharia insurance company in 2011-2020. The method of research used is multiple linear regression with ordinary least square. Estimating company profits using two variables (claims and investment returns) produces the largest coefficient of determination compared to using only one variable. The results of the coefficient of determination indicate that claims and investment affect the company's profit. The investment returns have the greatest influence on the company's profit than claims.
Keyword: sharia insurance, investments, claims, company’s profit, multiple linear regression

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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