Application of advanced shearing techniques to the calibration of autocollimators with small angle generators and investigation of error sources.

The application of advanced error-separating shearing techniques to the precise calibration of autocollimators with Small Angle Generators (SAGs) was carried out for the first time. The experimental realization was achieved using the High Precision Small Angle Generator (HPSAG) of TUBITAK UME under classical dimensional metrology laboratory environmental conditions. The standard uncertainty value of 5 mas (24.

The importance of hemosiderin deposition in the infant brain: an autopsy study.

Background/aim: Iron is an essential element involved in many metabolic processes. Presence and accumulation of iron in various body systems can result in different outcomes. Its accumulation in the central nervous system (CNS) cannot be detected routinely by application of hematoxylin-eosin staining.

The evaluation of left ventricular dyssynchronization in patients with hypertension by phase analysis of myocardial perfusion-gated SPECT.

Purpose: Hypertension is one of the most important risk factors for cardiovascular disease. However, hypertension may also result in left ventricular dyssynchrony (LVD) which is characterized by delayed activation of certain ventricular segments leading to uncoordinated contraction. The aim of this study was to evaluate the LVD measured by phase analysis of gated single-photon emission computed tomography (SPECT) imaging in patients with hypertension.

Bullying among High School Students.

Objective: The main aim of this research is to investigate the prevalence of bullying behaviour, its victims and the types of bullying and places of bullying among 14-17 year-old adolescents in a sample of school children in Bursa, Turkey.

Methodology: A cross-sectional survey questionnaire was conducted among class 1 and class 2 high school students for identification bullying.

Results: Majority (96.

Comparison of fragmented QRS and myocardial perfusion-gated SPECT findings.

Aim: Fragmented QRS (fQRS) complex is an ECG parameter that has recently been introduced and investigated. It is assumed that fQRS occurs because of disruptions in ventricular conduction due to ventricular infarction and ischemia. Therefore, in this article, we aimed to investigate the relationship between the detection of infarction and ischemia on myocardial perfusion-gated single-photon emission computed tomography images and appearance of fQRS on ECG.