Prognostic Significance of Fragmented QRS in Patients with Acute Ischemic Stroke.

Objectives: There are studies in the literature showing the clinical importance of fragmented QRS (fQRS) in many systemic diseases. In this study, we aimed to investigate the frequency and prognostic value of fQRS on electrocardiogram (ECG) in patients with acute ischemic stroke.

Materials And Methods: We prospectively enrolled 241 patients with acute ischemic stroke between January 2018 and January 2020.

Assessment of factors related to statin non-adherence in patients with established coronary artery disease: A single-center observational study.

Objective: Lifelong statin treatment is recommended in patients with cardiovascular diseases, but drug adherence is a significant problem. The aim of this study was to investigate factors related to statin discontinuation in high-risk patients with coronary artery disease (CAD) diagnosed by coronary angiography.

Methods: A total of 300 consecutive patients who were followed-up with a diagnosis of CAD were recruited.

HUMAN KARYOTYPE ANALYSIS IN DIAGNOSIS VERIFICATION.

When analyzing a patient’s karyotype using classic cytogenetic tools, clinical cytogeneticists frequently face a problem of whether the observed morphological variant of a chromosome is the norm or pathology. Here we present three cases, when the use of additional approaches allowed us to accurately and reliably describe the chromosomal abnormalities and to provide a substantiated medical and genetic prognosis. Translocations were preliminary diagnosed in the first two patients.

High temperature gate control of quantum well spin memory.

Time-resolved optical measurements in (110)-oriented GaAs/AlGaAs quantum wells show a tenfold increase of the spin-relaxation rate as a function of applied electric field from 20 to 80 kV cm(-1) at 170 K and indicate a similar variation at 300 K, in agreement with calculations based on the Rashba effect. Spin relaxation is almost field independent below 20 kV cm(-1) reflecting quantum well interface asymmetry. The results indicate the achievability of a voltage-gateable spin-memory time longer than 3 ns simultaneously with a high electron mobility.

Precession and motional slowing of spin evolution in a high mobility two-dimensional electron gas.

Optical spin-dynamic measurements in a high-mobility n-doped GaAs/AlGaAs quantum well show oscillatory evolution at 1.8 K consistent with a quasi-collision-free D'yakonov-Perel'-Kachorovskii regime. Above 5 K evolution becomes exponential as expected for collision-dominated spin dynamics.

[Double and single ventricular correction of dual deviation of main vessels from the right ventricle of transposition type].

The experience of surgical treatment of double deviation of main vessels from right ventricle of transpositional type for the 1996-2001 period. Double ventricular correction was done in 22 (73.3%), singleventricular one--in 8 (26.

Manifestation of intrinsic defects in optical properties of self-organized opal photonic crystals.

Self-organized synthetic opals possessing a face centered cubic (fcc) lattice are promising for fabrication of a three-dimensional photonic crystal with a full photonic band gap in the visible. The fundamental limiting factor of this method is the large concentration of lattice defects and, especially, planar stacking faults, which are intrinsic to self-assembling growth of colloidal crystal. We have studied the influence of various types of defects on photonic band structure of synthetic opals by means of optical transmission, reflection and diffraction along different crystallographic directions.

[The clinical picture, diagnosis and surgery of cancer of the lung in young subjects].

The article discusses the experience in the diagnosis and surgical treatment of lung carcinoma in 195 patients under 40 years of age. The specific features of the clinical course of lung carcinoma in the young, the principles of establishing the diagnosis, and the indications for surgery are determined. Various complications occurred in 16.

[Determination of local muscular blood flow in the hindlimbs of dogs following electrolysis of conducting vascular prostheses previously implanted in the abdominal portion of the aorta].

Peripheral blood flow in the posterior limbs in electrolysis of electroconductive vascular prosthesis preliminarily implanted into the abdominal aorta was experimentally determined on 25 mongrel dogs. Following reestablishment of the main blood flow a positive electrical potential (3--4 V) was fed on the prosthesis by means of a current conductor. Tissue blood flow was radiographically studied with xenon-133.