Browsing by Author "Bosri, Rabeya"

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    Machine Vision–Based Classification of Rare Fruits in Bangladesh Using Transfer Learning and Custom CNN Models
    (IUB, 2026-04) Hasan, Md. Hasib; Islam, Afsana; Bosri, Rabeya
    This study presents a deep learning framework for recognizing six rare Bangladeshi fruits using image classification. A dataset of 1,800 real-world images was created, and a lightweight Custom CNN was compared with transfer-learning models including MobileNetV2, InceptionV3, ResNet-50, and DenseNet-121. Experimental results show that the proposed Custom CNN achieved the best performance with 97.40% accuracy, along with superior ROC–AUC and PR–AUC scores. The findings demonstrate that domain-specific lightweight CNN architectures can outperform deeper pre-trained models while remaining computationally efficient. The proposed system has potential applications in digital agriculture, biodiversity conservation, and educational awareness related to Bangladesh’s rare fruit heritage.
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    Study of Pharmacological Activities of methanolic Extract of of Stephania japonica
    (East West University, 7/30/2016) Bosri, Rabeya
    Purpose: The research work was carried out to determine the pharmacological activities of methanolic extract of Stephania japonica Bark. Method: Methanolic bark extract was administered orally to the animal model (Swiss albino) and the effects were determined by comparing with respect to control group which were treated with 5% CMC.. Different experiments were used to determine the pharmacological profile which was Collected from internationally published publications and journals. Result: The plant was found to have depressive and carcinogenic effect. The CNS activity was evaluated by open field method and hole board test. In the open field method and hole board experiment the crude extract of Stephania japonica (200mg/kg, 400mg/kg & 800mg/kg) dose dependently reduces the number of peripheral locomotion, central locomotion and leaning in the open field test and reduces the number of head dipping and head poking in the hole board test. The reduction is significant (***p<0.001) when it is compared to the standard drug. The aim of the study was also to investigate the possible toxicity of the plant Stephania japonica and especially to establish the safety of the methanolic extract of this plant by focusing on its acute and chronic toxicity in mice. For finding chronic toxicity several tests are done such as CBC (Cell Blood count) test, Hepatic enzyme test and histopathological Studies. All data were analyzed by using SPSS analytical method. Conclusion: After summarize all the results it can say that bark of Stephania japonica may have several pharmacological activities but to prove the hypothesis it need further higher studies.