In control of urban traffic systems, synchronization of traffic lights is one of the measures used to improve the throughput, as it allows vehicles to pass an arterial without stop. Classical approaches are off-line, top-down planned and centralized. Moreover, they are inflexible since they cannot cope with dynamic changes in the traffic flow or depend too much on communication. This paper desc...

SHAPIRO, HARVEY M., DON D. STROMBERG, DENNIS R. LEE, AND CURT A. WIEDERHIELM. Dynamic pressures in the pial arterial microcirculation. Am. J. Physiol. 22 l(1) : 279-283. 197 1 .-Using a modified Wiederhielm servo-micropipet system with pipet tips of 0.5-l p diam, we measured and recorded dynamic arterial pressures in 42 arteries and arterioles of the pial vascular network on the surface of the ...

OBJECTIVE The aim of the study was to evaluate image quality of a dynamic hepatic magnetic resonance (MR) imaging strategy based on advanced parallel acquisition combined with rhythmic breath-hold and gadoxetate disodium enhancement. MATERIALS AND METHODS Twenty-seven patients (21 male/6 female; mean age, 57.3 years) were enrolled in this institutional review board-approved study and underwen...

This article provides an overview of the history behind the physiological concepts defining the role of the arterial baroreflexes and their regulation of arterial blood pressure during dynamic exercise. Initially, the case is made as to "why the arterial baroreflexes must be involved with blood pressure regulation during exercise." Subsequently, the historical animal and human experiments perfo...

Hypoxia is known to impair cerebral autoregulation (CA). Previous studies indicate that CA is profoundly affected by cerebrovascular tone, which is largely determined by the partial pressure of arterial O(2) and CO(2). However, hypoxic-induced hyperventilation via respiratory chemoreflex activation causes hypocapnia, which may influence CA independent of partial pressure of arterial O(2). To id...