Subadventitial resection of the ureter-new method for surgical corrections of the ureteropelvic junction and ureterovesical junction obstructions.

Objective: The aim of our study was to examine results of pyeloplasty using the new method-subadventitial resection of the ureter with preservation of the ureteral artery proposed by us and the possibility of using this method in one-stage surgery with ureteropelvic junction (UPJ) and ureterovesical junction (UVJ) obstructions or vesicoureteral reflux.

Methods: A retrospective analysis of 108 patients with hydronephrosis (including two patients with hydroureteronephrosis) who received treatment from March 1998 to March 2020 was carried out, with an average follow-up period of 36 months. Dismembered pyeloplasty using a subadventitial technique with preservation of ureteral blood supply was performed in 108 patients (including bilateral in two cases).

High activity and high functional connectivity are mutually exclusive in resting state zebrafish and human brains.

Background: The structural connectivity of neurons in the brain allows active neurons to impact the physiology of target neuron types with which they are functionally connected. While the structural connectome is at the basis of functional connectome, it is the functional connectivity measured through correlations between time series of individual neurophysiological events that underlies behavioral and mental states. However, in light of the diverse neuronal cell types populating the brain and their unique connectivity properties, both neuronal activity and functional connectivity are heterogeneous across the brain, and the nature of their relationship is not clear.

Nonsmooth Optimization-Based Model and Algorithm for Semisupervised Clustering.

Using a nonconvex nonsmooth optimization approach, we introduce a model for semisupervised clustering (SSC) with pairwise constraints. In this model, the objective function is represented as a sum of three terms: the first term reflects the clustering error for unlabeled data points, the second term expresses the error for data points with must-link (ML) constraints, and the third term represents the error for data points with cannot-link (CL) constraints. This function is nonconvex and nonsmooth.

[Treatment of postoperative macular edema (a clinical case study)].

Pseudophakic cystoid macular edema (CMO) known to appear in 0.1-2.35% of patients after phacoemulsification is one of the common causes of vision decrease during the postoperative period.