منابع مشابه
Smooth Muscle Tone
The objective of this study was to elucidate the mechanisms associated with the reciprocal relation between magnesium and calcium on vascular smooth muscle tone in bovine pulmonary artery and vein. Rapid removal of magnesium from Krebs-bicarbonate medium used to bathe isolated rings of precontracted artery or vein caused transient endotheliumand calciumdependent relaxation and cyclic GMP accumu...
متن کاملassessment of the efficiency of s.p.g.c refineries using network dea
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
Reflex regulation of airway smooth muscle tone.
Autonomic nerves in most mammalian species mediate both contractions and relaxations of airway smooth muscle. Cholinergic-parasympathetic nerves mediate contractions, whereas adrenergic-sympathetic and/or noncholinergic parasympathetic nerves mediate relaxations. Sympathetic-adrenergic innervation of human airway smooth muscle is sparse or nonexistent based on histological analyses and plays li...
متن کاملObjective quality assessment of tone-mapped images
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract – Tone mapping operators plays an important role to compress high dynamic range (HDR) images to low dynamic range images. High dynamic range images have plenty of applications especially in space and medical fields. For visualization of HDR images ...
متن کاملImage Quality Assessment of Tone Mapped Images
This paper proposes an objective assessment method for perceptual image quality of tone mapped images. Tone mapping algorithms are used to display high dynamic range (HDR) images onto standard display devices that have low dynamic range (LDR). The proposed method implements visual attention to define perceived structural distortion regions in LDR images, so that a reasonable measurement of dist...
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ژورنال
عنوان ژورنال: Age and Ageing
سال: 2000
ISSN: 1468-2834
DOI: 10.1093/ageing/29.5.385