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تعداد نتایج: 10935164 فیلتر نتایج به سال:
hat is the diagnosis? Stroke neurologists make use of inductive reasoning, a probabilistic exercise, to determine stroke mechanism. Where ≥1 possible mechanism exists, we typically adopt the philosophy of Occam's razor, assuming that 1 mechanism is dominant. The ensuing approach to preventive treatment rationally follows the determination of stroke mechanism. The appearance of an embolic-lookin...
Biochemical cellular targets and more general metabolic processes in cancer cells can be visualised. Extensive data are available on molecular imaging in preclinical models. However, innovative tracers move slowly to the clinic. This review provides information on the currently available methods of metabolic imaging, especially using PET in humans. The uptake mechanisms of tracer methods and a ...
The removal of chromosomes from recipient oocytes is one of the key steps in nuclear transfer cloning. Although microtubule interrupters have been successfully used for oocyte enucleation, their potential side effect on oocyte developmental potential should be considered, and less harmful drugs should be explored for chemical-assisted enucleation. Based on our previous findings that any maturat...
Inspired by ant navigation, we explore a method for sky segmentation using ultraviolet (UV) light. A standard camera is adapted to allow collection of outdoor images containing light in the visible range, in UV only and in green only. Automatic segmentation of the sky region using UV only is significantly more accurate and far more consistent than visible wavelengths over a wide range of locati...
gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
BACKGROUND Blood bank recommendations specify that Ringer's lactate solution (LR) should be avoided while transfusing blood. However, there are few studies either evaluating or quantifying increased coagulation during rapid infusion of LR and blood. DESIGN AND METHODS Whole blood (WB, n = 25) and packed red blood cells (PRBC, n = 26) were rapidly admixed with normal saline (NS), Lactate solut...
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