24 research outputs found
Study of the effect of seed priming with antioxidants on seed quality of fresh and old seed lot of onion (Allium cepa L.)
Comparison of axial and sagittal views for angulation, cuspal tip distance, and alveolus width in maxillary impacted canines using CBCT
A Brief Study on Lane Detection using Lane Boundary Marker Network
Both advanced driver assistance systems and self-driving automobiles rely heavily on lane detection. While current techniques utilize a scope of highlights from low-level to profound highlights separated from convolutional brain networks, they all experience the ill effects of the issue of impediment and battle to distinguish paths with low or no proof on the street. Key points along the lane boundaries are identified using a lane boundary marker network in this paper. An backwards viewpoint planning is assessed
utilizing street geometry which is then applied to the recognized markers and lines/bends are fitted together on the amended focuses. Finally, missing path limits are anticipated utilizing path geometry limitations i.e., equidistant and parallelism. Reciprocal weighted averaging guarantees path limits with solid proof rule their anticipated other options. This demonstrates our algorithm's resistance to occluded and missing lanes. We also demonstrate that our algorithm can be used in conjunction with other lane detectors to enhance their lane retrieval capabilities.</jats:p
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Final LDRD report : the physics of 1D and 2D electron gases in III-nitride heterostructure NWs.
The proposed work seeks to demonstrate and understand new phenomena in novel, freestanding III-nitride core-shell nanowires, including 1D and 2D electron gas formation and properties, and to investigate the role of surfaces and heterointerfaces on the transport and optical properties of nanowires, using a combined experimental and theoretical approach. Obtaining an understanding of these phenomena will be a critical step that will allow development of novel, ultrafast and ultraefficient nanowire-based electronic and photonic devices
Spectrophotometric Assay of Mebendazole in Dosage Forms Using Sodium Hypochlorite
A simple, selective and sensitive spectrophotometric method is described for the determination of mebendazole (MBD) in bulk drug and dosage forms. The method is based on the reaction of MBD with hypochlorite in the presence of sodium bicarbonate to form the chloro derivative of MBD, followed by the destruction of the excess hypochlorite by nitrite ion. The color was formed by the oxidation of iodide with the chloro derivative of MBD to iodine in the presence of starch and forming the blue colored product, which was measured at 570 nm. The optimum conditions that affect the reaction were ascertained and, under these conditions, a linear relationship was obtained in the concentration range of 1.25-25.0·g/ml MBD. The calculated molar absorptivity and Sandell sensitivity values are 9.56·103 l·mol-1·cm-1 and 0.031 μg/cm2, respectively. The limits of detection and quantification are 0.11 and 0.33 μg/ml, respectively. The proposed method was applied successfully to the determination of MBD in bulk drug and dosage forms, and no interference was observed from excipients present in the dosage forms. The reliability of the proposed method was further checked by parallel determination by the reference method and also by recovery studies
Assessment of coronary artery calcium using dual-energy subtraction digital radiography.
Cardiovascular disease is the leading cause of global mortality, yet its early detection remains a vexing problem of modern medicine. Although the computed tomography (CT) calcium score predicts cardiovascular risk, relatively high cost (250-400) and radiation dose (1-3 mSv) limit its universal utility as a screening tool. Dual-energy digital subtraction radiography (DE; <60, 0.07 mSv) enables detection of calcified structures with high sensitivity. In this pilot study, we examined DE radiography's ability to quantify coronary artery calcification (CAC). We identified 25 patients who underwent non-contrast CT and DE chest imaging performed within 12 months using documented CAC as the major inclusion criteria. A DE calcium score was developed based on pixel intensity multiplied by the area of the calcified plaque. DE scores were plotted against CT scores. Subsequently, a validation cohort of 14 additional patients was independently evaluated to confirm the accuracy and precision of CAC quantification, yielding a total of 39 subjects. Among all subjects (n = 39), the DE score demonstrated a correlation coefficient of 0.87 (p < 0.0001) when compared with the CT score. For the 13 patients with CT scores of <400, the correlation coefficient was -0.26. For the 26 patients with CT scores of ≥400, the correlation coefficient yielded 0.86. This pilot study demonstrates the feasibility of DE radiography to identify patients at the highest cardiovascular risk. DE radiography's accuracy at lower scores remains unclear. Further evaluation of DE radiography as an inexpensive and low-radiation imaging tool to diagnose cardiovascular disease appears warranted
