https://theamericanjournals.com/index.php/tajabe <p>E-ISSN <strong>2689-1018</strong></p> <p>DOI Prefix <strong>10.37547/tajabe</strong></p> <p>Started Year <strong>2019</strong></p> <p>Frequency <strong>Monthly</strong></p> <p>Language <strong>English</strong></p> <p>APC <strong>$250</strong></p> The USA Journals en-US The American Journal of Agriculture and Biomedical Engineering 2689-1018 <p><em>Authors retain the copyright of their manuscripts, and all Open Access articles are disseminated under the terms of the <a href="https://creativecommons.org/licenses/by/4.0/"><strong>Creative Commons Attribution License 4.0 (CC-BY)</strong></a>, which licenses unrestricted use, distribution, and reproduction in any medium, provided that the original work is appropriately cited. The use of general descriptive names, trade names, trademarks, and so forth in this publication, even if not specifically identified, does not imply that these names are not protected by the relevant laws and regulations.</em></p> https://theamericanjournals.com/index.php/tajabe/article/view/6043 <p>To determine the insecticidal activity of TRANIL 20% EC against the cotton bollworm (Helicoverpa armigera Hbn), which causes significant damage to cotton crops in our country, field trials were conducted using a dosage rate of 0.2 liters per hectare. The results of the trial showed that by the 7th day, the effectiveness of the preparation reached 89.1%.</p> Alamuratov Rayimjon Abdimurat o‘g‘li Abdillayev Marat Ibodillayevich Sattorov Shoximardon Xushmamatovich Copyright (c) 2025 Alamuratov Rayimjon Abdimurat o‘g‘li, Abdillayev Marat Ibodillayevich, Sattorov Shoximardon Xushmamatovich https://creativecommons.org/licenses/by/4.0 2025-04-09 2025-04-09 7 04 6 9 10.37547/tajabe/Volume07Issue04-02 https://theamericanjournals.com/index.php/tajabe/article/view/6010 <p>The partial volume effect (PVE) in positron emission tomography/computed tomography (PET/CT) imaging leads to inaccurate quantification of radiotracer uptake, particularly in small structures or regions with low activity. This study proposes a method for calculating recovery coefficients (RCs) to correct for the PVE in PET/CT images using a customized anthropomorphic body phantom. The phantom was designed to replicate human body anatomy, including various organs and tissues, with controlled activity distributions. PET/CT scans were acquired at different spatial resolutions, and the RCs were derived by comparing the measured and true activity concentrations. Our findings demonstrate that the RCs vary based on the size and shape of the region of interest (ROI) and the resolution of the PET scan. These recovery coefficients can be applied to improve quantitative accuracy in PET/CT imaging, particularly for small lesions and organs. The results highlight the effectiveness of using a customized anthropomorphic phantom for PVE correction and the potential clinical benefits of this method in diagnostic imaging.</p> Nickolas Miser Copyright (c) 2025 Nickolas Miser https://creativecommons.org/licenses/by/4.0 2025-04-01 2025-04-01 7 04 1 5