Judul: Uji Viabilitas Polen pada Dua Spesies Belimbing Hutan (Averrhoa dolichocarpa dan A. leucopetala)
Abstrak: Wild starfruit Averrhoa dolichocarpa and A. leucopetala are new species reported. The aims of the research were to testing pollen viability at a day before anthesis (H-1) and at anthesis (H0) stadia with germination in Brewbaker and Kwack (BK) and 10% sucrose media and staining test with 1% anilin blue and 1% I2KI. The optimum time for germination was 16 hours. Pollen viability in staining test results were higher than in germination test ie. 64.80% in BK medium, 54.60% in sukrosa, 88.60% in aniline blue dye and 88.50% in I2KI. BK medium showed a better result for germination test than 10% sucrose. In vitro viability germination test obtained the result that pollen viability value of wild starfruit at H0 stadia was higher than pollen viability at H-1 stadia. While the result of staining test obtained that H-1 stadia was higher than at H0 stadia. Long filament of Averrhoa dolichocarpa located on the slope had higher pollen viability than short filament. Filament factor in staining test was not significant. Pollen viability both in 10% sucrose to 1% aniline dye and 10% sucrose to 1% I2KI were negatively correlated. The correlation of pollen viability was not found either in BK medium and aniline dye blue or in BK medium and I2KI.
Keyword: Bogor Agricultural University (IPB), staining test, in vitro germination, pollen viability, starfruit

Judul: Fenologi dan Dinamika Kandungan Klorofil pada Pembungaan Dua Spesies Belimbing Hutan (Averrhoa dolichocarpa dan Averrhoa leucopetala).
Abstrak: Averrhoa dolichocarpa is a wild starfruit from Gorontalo and Averrhoa leucopetala from Papua. Both starfruits have unique characters of the leaves, infloresens, flowers, and fruit. The aims of the research were to determine the phenology of flowers and leaf chlorophyll content dynamics in flowering of two wild starfruits species Averrhoa dolichocarpa and Averrhoa leucopetala. The study was conducted in February 2012 to May 2012 by doing observations on the wild starfruits collections of Bogor Botanical Garden. Averrhoa dolichocarpa has infloresens initiation time (8-14) days, single flower’s small bud phase (11-15) days, large bud phase 1 day, anthesis 3 days and fruit development (40-45) days. Flower and fruit drop rate is quite high and the most influential environment factor is the wind speed. The chlorophyll content is very dynamic and influenced by the state of the location and the large of plant canopy. Averrhoa leucopetala has infloresens initiation time (30-34) days, small bud phase (12-15) days, large bud phase 1 day, anthesis 5 days, and fruit development (40-42) days. Flower and fruit drop rate is also quite high. Chlorophyll content is more static and tends to increase in the fruit development phase.
Keyword: 

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