نتایج جستجو برای: sustained
تعداد نتایج: 81748 فیلتر نتایج به سال:
Objective: This study aimed to evaluate the effect of neurofeedback training on improving sustained attention of veterans with posttraumatic stress disorder (PTSD). Methods: The research design is quasi-experimental with pretest-posttest and control group. The study population consisted of the veterans with PTSD who were hospitalized in psychiatric wards. Purposeful sampling met...
OBJECTIVES To explore the relation between non-invasive measures of cardiac function and sudden cardiac death, as well as the development and utility of an index integrating these variables to identify patients at increased risk of this mode of death. DESIGN UK-HEART (United Kingdom-heart failure evaluation and assessment of risk trial) was a prospective study conducted between December 1993 ...
We report a multifunctional micromotor fabricated by the self-assembly technique using multifunctional materials, i.e. polymer single crystals and nanoparticles, as basic building blocks. Not only can this micromotor achieve autonomous and directed movement, it also possesses unprecedented functions, including enzymatic degradation-induced micromotor disassembly, sustained release and molecular...
this report details the presence of hyperammonemia in a patient who sustained cardiac arrest after a traumatic amputation. serum ammonia levels may rise due to numerous etiologies; however, few reports detail its usefulness in diagnosing subclinical seizures. in this case, we successfully utilized persistently elevated serum ammonia levels as a marker of subclinical seizures in a patient who su...
Our purpose was to investigate the efficacy, safety, and electrophysiological mechanism of ultrarapid subthreshold electrical stimulation in terminating sustained ventricular tachycardia (VT) in humans. Fifteen patients with inducible sustained hemodynamically stable VT and whose VT cycle length ranged between 295 and 440 msec (337 +/- 60 msec) were included in this study. The stimulation thres...
When the left and right eyes are simultaneously presented with different images, observers typically report exclusive awareness of only one image. This phenomenon is termed binocular rivalry, reflecting the fact that the dominant image alternates every few seconds in a cycle of perceptual competition that continues indefinitely. Despite the apparent continuity in perceptual switching, we now de...
BACKGROUND Resetting and entrainment have both been used to characterize the electrophysiological properties of the reentrant circuit in ventricular tachycardia. Several entrainment studies have suggested that the circuit has decremental properties, because the return cycle increases at faster pacing rates. Resetting, however, demonstrates a fully excitable gap in the majority of tachycardias. ...
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