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31.479  Articles
1 of 3.149 pages  |  10  records  |  more records»
This paper presented a new algorithm for determining the distance of an object in front of a stereo camera placed on a helmet. By using a stereo camera with a Sum of Absolute Difference with a Sobel edge detector, our previous Grid-Edge-Depth map algorith... see more

Background: Due to the high failure rates in engineering courses, it is of fundamental importance to seek alternatives that minimise the difficulties that students entering Brazilian universities have in the disciplines of the area of mathematics. An alte... see more

Background: The integration of STEM areas (science, technology, engineering and mathematics) in engineering courses has been the focus of research in the educational context and mathematical modelling has the potential for its success. Objectives: The res... see more

Background: Mathematical tasks for university teaching are generally of great cognitive demand, without thinking about the limitations they imply for their students. Objectives: To develop a theoretical analysis of the teaching limitations and cognitive d... see more

Objective: To investigate the value of serum procalcitonin(PCT), C-reactive protein(CRP), and neutrophil gelatinase-associated lipocalin(NGAL) in the early diagnosis of acute kidney injury(AKI) after upper urinary tract calculi(UUTC).Methods: The clinical... see more

Objective: To compare and analyze the clinical effects of ultrasound-guided percutaneous nephrolithotripsy and X-ray-guided percutaneous nephrolithotripsy in the treatment of complex renal calculi without hydronephrosis.Methods: Eighty patients with multi... see more

Today, pollution is a worldwide problem. Pollution is a result due to the rapid growth of civilization and the number of motor vehicles. It causes deterioration and poisoning of the environment, including air, water and soil, and poses a serious threat to... see more

Objective. To study perioperative changes in hemodynamics, the oxygen state and metabolism in patients, suffering an acute calculous cholecystitis, and to determine the methods of their correction.Materials and methods. The investigation was based on 131 ... see more

One of the essential resources in management is human resources. The importance of human resources needs to be realized by all levels of management. Schools as a unified education system are expected to provide learning experiences for all students to mas... see more

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