Judul: Aktivitas Terbang dan Produktivitas Lebah Trigona laeviceps pada Bahan Stup Kayu Sengon dan Kayu Lapis (Plywood)
Abstrak: Trigona laeviceps is one of stingless bees species which produce propolis and its productivity influenced by flight activity of the workers. This study aimed to obtain stup material place Trigona hive which may improve the weight of bees colony and increase production of propolis. The weight gain of colony was counted every week while propolis+bee pollen and honey was measured at the end of the study. Temperature, internal temperature, relative humidity, light intensity and wind speed were also measured. Daily flight activity of Trigona for obtain pollen/resin and nectar/water on sengon stup was very significantly higher (p<0.01) compared to the bees kept in plywood stup (80.40±41.40 vs 42.33±21.90 bees/day). The light intensity affect the daily flight activity (R2=78.3% in sengon stup and R2= 85.6% in stup plywood). Colony weight gain on sengon stup was significantly higher (p<0.05) as compared to those on plywood stup (23.70 vs -−8.44 g/week). Whereas the production of propolis+bee pollen and honey were not significantly different (24.77 and 19.66 vs 19.92 and 17.61 g/8 weeks).
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Judul: Aktivitas dan Produktivitas Lebah Trigona laeviceps di Kebun Polikultur dan Monokultur Pala (Myristica fragrans)
Abstrak: Trigona laeviceps is belong to the family Apideae. It has belong to no sting (stingless bee) and produce propolis, honey and bee pollen. This study aimed to study and compare the activity and productivity of Trigona laeviceps in polyculture and monoculture plantation nutmeg (Myristica fragrans). The study used completely randomized with type of garden (policultures and monocultures of nutmeg) Trigona activity and productivity (honey, pollen, propolis and development of colonies) were the variables and the obtained data were analyzed by ANOVA T - test with 95% confidence interval. observation the activity in and out in the morning until late afternoon (from 06:00 to 17:00), and productivity seen from the weight indication colony, honey, propolis and bee pollen. Trigona bee activity in the nutmeg monoculture plantation (83 %) was higher than in polyculture garden (84 %) and determined by light intensity. Activity in the garden polyculture affected by temperature pollen and propolis production percentages were higher in policulture plantation, while Trigona colonies in nutmeg monoculture had a better development. However, in this study, ambient factors (temperature, Rh, and light intensity) do not significantly determined variation in Trigona productions.
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Judul: Quantum Convolutional Neural Network (QCNN) for Classification Brain Tumor MRI Image
Abstrak: Penelitian ini bertujuan untuk mengembangkan model deteksi tumor otak menggunakan citra MRI dengan metode Quantum Convolutional Neural Network. Data yang digunakan adalah citra MRI otak yang terdiri dari citra tumor otak glioma, meningioma, hipofisis, dan negatif tumor yang dibagi kedalam data latih dan uji dengan rasio 80:20. Selanjutnya data latih dilakukan penyeimbangan dengan teknik oversampling. Dilakukan pengembangan model untuk mendeteksi tumor otak (biner), dan juga model untuk mengklasifikasikan jenis tumor otak (multiclass). Parameter yang digunakan dalam pengembangan model adalah jumlah ukuran filer = 2 dan kedalaman = 4, dengan qubit 4, dan dilatih dengan jumlah epoch sebanyak 10. Data akan diproses dengan metode Quantum Convolutional Neural Network yang terdiri dari lapisan quantum convolution, lapisan flatten, dan lapisan dense. Model multiclass mendapatkan akurasi 52%, setelah data latih diseimbangkan akurasi model meningkat menjadi 62%, sedangkan model biner mendapatkan akurasi 88%, setelah data latih diseimbangkan akurasi model meningkat menjadi 89%.
Keyword: Citra MRI, Klasifikasi Citra, QCNN, Tumor Otak