Gas-exchange measurements, including CO2-exchange rate (net photosynthesis), stomatal conductance, and transpiration, were conducted on intact and clipped cherrybark oak (Quercus pagoda Raf.) seedlings growing in the field and in a nursery bed. Seedlings inthe field, released from midstory and understory woody competition, showed significant increases in gas-exchange compared to non-released se...

BACKGROUND AND PURPOSE With many patients living long after microsurgical aneurysm clipping for subarachnoid hemorrhage (SAH) and with the evolution of intravascular procedures as less invasive alternatives, knowledge of the long-term results of clipping is becoming important. METHODS Of 412 patients who underwent clipping of ruptured or unruptured cerebral aneurysms at our institution betwee...

A new algorithm is proposed for updating the weights of an adaptive filter. The proposed algorithm is a modification of an existing method, namely, the clipped LMS, and uses a three-level quantization (+1, 0,−1) scheme that involves the threshold clipping of the input signals in the filter weight update formula. Mathematical analysis shows the convergence of the filter weights to the optimum Wi...

Objectives: As we known that the internal thoracic artery (ITA) has an excellent patency rate in coronary artery bypass grafting (CABG). However, early graft failure due to occlusion and spasm is still the major problem after coronary artery bypass surgery. We examined histopathologic findings of the clipped internal thoracic artery (ITA) in patients undergoing CABG using transmission electron ...

1. Previous studies have shown that administration of converting enzyme inhibitor (CEI, SQ 20 881) to two-kidney, one-clip Goldblatt hypertensive (GH) rats clipped for 3-4 weeks resulted in marked increases in glomerular filtration rate (GFR), water and sodium excretion by the non-clipped kidneys. The clipped kidneys exhibited reduced function that was due, in part, to the reductions in arteria...

BACKGROUND Clipping the winter coat in horses is done to improve heat dissipation during exercise and make grooming easier. It is often combined with blanketing to keep the horse warm. The aims of the present study were to investigate how clipping and the use of blankets affect thermoregulation during exercise and recovery in horses. METHODS One Gotland pony, one New Forest pony, and one warm...

BACKGROUND Isoforms of the NADPH oxidase contribute to vascular superoxide anion (*O2-) formation and limit NO bioavailability. We hypothesized that the endothelial gp91phox-containing NADPH oxidase is predominant in generating the O2- to scavenge endothelial NO and thus is responsible for the development of endothelial dysfunction. METHODS AND RESULTS Endothelial dysfunction was studied in a...

Six cases of unclippable vertebral aneurysms were treated by therapeutic occlusion of the proximal vertebral artery. In three cases, the vertebral artery was clipped proximal to the posterior inferior cerebellar artery (PICA), and all of these patients had a postoperative embolic complication or a fatal subarachnoid hemorrhage. In two cases, the vertebral artery was clipped distal to the PICA a...

We study the denoising of signals from clipped noisy observations, such as digital images of an underor over-exposed scene. From a precise mathematical formulation and analysis of the problem, we derive a set of homomorphic transformations that enable the use of existing denoising algorithms for non-clipped data (including arbitrary denoising Þlters for additive independent and identically dist...