introduction: the aim of this study was to explore the relationship between genu varum abnormality and the performance and strength of lower extremity in teenage footballers. materials and methods: 60 young male football players with the mean age of 15.2± 0.78 yr, mean weight of 58.9 ± 3.39 kg and mean height of 166.6.21 cm participated in this study. kendall’s method and plumb line were used t...

Symmetric positive definite (spd) matrices pervade numerous scientific disciplines, including machine learning and optimization. We consider the key task of measuring distances between two spd matrices; a task that is often nontrivial whenever the distance function must respect the non-Euclidean geometry of spd matrices. Typical non-Euclidean distance measures such as the Riemannian metric δR(X...

introduction: the distance between the anterior commissure of the larynx and the first tracheal ring (ac.t. distance) is of great importance in laryngotracheal surgeries.  the amount of narrowing of the subglottic airway is used as a quantitative mean to determine whether the lesion is subglottic or has extended to the trachea and therefore helps in the prediction of the final prognosis.   mate...

     Introduction: Objective: This study aimed to assess the possible variations in root canal anatomy and topography of the apices of first and second maxillary molars. Materials and methods: A total of 67 first and second maxillary permanent molars were collected. Access cavity was prepared and 2% methylene blue was injected. The teeth were demineralized by 5% nitric acid and cleared with met...

With hundreds or thousands of attributes in high-dimensional data, the computational workload is challenging. Attributes that have no meaningful influence on class predictions throughout classification process increase computing load. This article's goal to use attribute selection reduce size which will lessen Considering selected subsets cover all attributes. As a result, there are two stages ...