Introduction: There are several technical features that make PET an ideal device for the noninvasive evaluation of cardiac physiology. Organ motion due to respiration is a major challenge in diagnostic imaging, especially in cardiac PET imaging. These motions reduce image quality by spreading the radiotracer activity over an increased volume, distorting apparent les...

Prenylated 1,3-dihydroxyxanthone has been successfully synthesized using Prenyl bromide and KOH. Characterization of the compound Infra Red (IR) Nuclear Magnetic Resonance (1H-NMR) showed that monosubstituted c-prenylation was occurred at carbon number 2 to form 1,3-dihydroxy-2-prenylxanthone. The synthesis result a yellow-brown paste with yield 43.09%. This prenylated had moderate antibacteria...

A fundamental feature of the temporal organization of neural activity is phase-amplitude coupling between brain rhythms at different frequencies, where the amplitude of a higher frequency varies according to the phase of a lower frequency. Here, we show that this rule extends to brain-organ interactions. We measured both the infra-slow (~0.05Hz) rhythm intrinsically generated by the stomach - t...

background: dyslipidemia is considered an independent risk factor for coronary heart disease (chd). in the present study, we examined lipid profiles and paraoxonase 1 (pon1) activity and atherogenic indexes status and the relationship of pon1 activity by high-density lipoprotein (hdl) and atherogenic indexes in chd patients and healthy people. methods: the aim of the study was to compare pon1, ...

This article consists of an introduction, material and methods, analysis heart rate variability, conclusion a list references. paper is devoted to the development monitor model for diagnosing variability. The obtained estimates main parameters uniform oscillations are dynamic series. kind particularly all intents purposes series, which really quite significant. In methods recording cardiac acti...