BACKGROUND 99mTc-sestamibi and thallium imaging have similar accuracy when used for diagnostic purposes, but whether sestamibi provides accurate information regarding myocardial viability in patients with chronic coronary artery disease has not been established. Since there is minimal redistribution of sestamibi over time, it may overestimate nonviable myocardium in patients with left ventricul...

Electroorganic reactions, where energy is either stored or released from chemical bonds within carbon-based molecules, are essential to help achieve a circular economy. Central electrochemical conversion of organic molecules carbon monoxide (CO), which serves as both an intermediate in CO 2 reduction hydrocarbons and oxidation fuel cells that operate via oxygenated (e.g., ethanol, methanol). Fo...

Grain-scale dwell fatigue behavior in Ti-Fe-O alloy is elucidated, with attention focused on the stress redistribution phenomenon that occurs within soft-hard grain combination. Elastoplastic properties of β phase are determined using nanoindentation and crystal plasticity modeling. On this basis, role intergranular lath evaluated. Redistribution from soft to hard α inhibited presence during pe...

Objective: Life stress is hypothesized to alter the dynamic regulation of the autonomic, neuroendocrine, and immune systems. This study examined the effects of antecedent chronic life stress on psychological and physiological responsivity after acute challenge with a psychological stressor. Method: Using a within-subject mixed design, male volunteers with [N = 12) and without chronic life stres...