نتایج جستجو برای: through fid
تعداد نتایج: 1353509 فیلتر نتایج به سال:
Introduction Rapid chemical shift imaging (CSI) techniques are of considerable interest for hyperpolarized C metabolic imaging [1,2]. Undersampled spiral CSI (spCSI) using a free induction decay (FID) acquisition mode has been applied to real-time metabolic imaging with acquisition times of less than 1 s per slice [3]. The FID acquisition necessitates phase correction during reconstruction for ...
OBJECTIVE Tissue kallikrein (TK) participates in acute flow-induced dilatation (FID) of large arteries. We investigated whether TK deficiency blunts FID and alters chronic flow-related arterial structural and functional changes in resistance-sized muscular arteries. METHODS AND RESULTS Vasomotor responses and structural parameters were determined in uterine arteries isolated from nonpregnant,...
Flight initiation distance (FID) is the distance between a potential threat and the point at which a potential prey flees. Animals may modify their FID to compensate for increased risk generated by external/extrinsic factors such as habitat type, visibility, group size, time of year, predatorapproach velocity, and distance to burrow, as well as internal/intrinsic factors such as physical condit...
Gas chromatographs equipped with flame ionization detectors (GC/FID) are widely used for the quantitative analysis of hydrocarbon compounds. For precise quantitative analysis, it is essential to calibrate the GC/FID system using calibration standards for each analyte. This is both inefficient and cost−prohibitive. The response factor method is also used for calibration of the GC/FID. The respon...
We hypothesized that transient high-glucose concentration interferes with mediation by nitric oxide (NO) of flow-induced dilation (FID) of arterioles due to enhanced production of superoxide. In isolated, pressurized (80 mmHg) rat gracilis muscle arterioles ( approximately 130 microm) after transient high-glucose treatment (tHG; incubation with 30 mM glucose for 1 h), FID was reduced (maximum: ...
We propose a new experimental protocol to investigate the atmospheric dispersion of dense gas in wind-tunnel experiments. Simultaneous measurements concentration and velocity are performed by coupling flame ionisation detector (FID) hot-wire anemometer (HWA), whose probes located sufficiently close each other so that respective correspond same sampling volume. The heavy emission consists mixtur...
One of Darwin's most widely known conjectures is that prey are tame on remote islands, where mammalian predators are absent. Many species appear to permit close approach on such islands, but no comparative studies have demonstrated reduced wariness quantified as flight initiation distance (FID; i.e. predator-prey distance when the prey begins to flee) in comparison with mainland relatives. We u...
In this contribution we will address the main puzzling empirical issues that have been formulated around Free Indirect Discourse (FID): the constraints on the use of first person pronouns and of proper names (as well as of definite descriptions), the reasons why different grammatical features (person, gender, number) give rise to presuppositions that must be resolved at different levels of inte...
Magnetic resonance imaging (MRI) is highly susceptible to subject’s motion and can significantly degrade image quality. In brain MRI exams, involuntary headmovements can affect the sampled k-space data. Such unintended alterations may result in visible image artifacts such as blurring, ghosting and others, and therefore potentially disqualify the image fromdiagnostic purposes. Methods to charac...
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