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    SAlexNet: Superimposed AlexNet using residual attention mechanism for accurate and efficient automatic primary brain tumor detection and classification by Qurat-ul-ain Chaudhary, Shahzad Ahmad Qureshi, Touseef Sadiq, Anila Usman, Ambreen Khawar, Syed Taimoor Hussain Shah, Aziz ul Rehman

    Published 2025-03-01
    “…In this work, we propose Superimposed AlexNet (SAlexNet-1 and its extension SAlexNet-2) to detect the malignancy of primary brain tumors (Glioma, Meningioma, and Pituitary) by incorporating three enhancements: (1) fusing Hybrid Attention Mechanism (HAM), (2) dense feature extraction by replacing initial convolution 11 × 11 layer with multiple convolution 3 × 3 layers for extra non-linearity alleviating parameter burden, and (3) pretraining the encoder path on a correlated dataset via semi-transfer learning (STL) enhancing model performance. …”
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    TERPENES OF Melipona quadrifasciata GEOPROPOLIS by Marta S. D. Freitas, Matheus H. O. de Sousa, Alexandre Piccinini, Luiz Antonio Mendonça Alves da Costa, Neusa F. de Moura

    Published 2025-01-01
    “…Additionally, gas chromatography-mass spectrometry (GC-MS) analysis of the hexane fraction obtained via cold extraction under ultrasound revealed the presence of abietane diterpenes and pentacyclic triterpenes, particularly amyrins, with α-amyrin presented in all geopropolis samples.…”
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