نتایج جستجو برای: fid)

تعداد نتایج: 2092  

Journal: :Magnetic resonance in medicine 2011
Henrik Haraldsson Andreas Sigfridsson Hajime Sakuma Jan Engvall Tino Ebbers

Accurate functional measurement in cardiovascular diseases is important as inaccuracy may compromise diagnostic decisions. Cardiac function can be assessed using displacement encoding with stimulated echoes, resulting in three signal components. The free induction decay (FID), arising from spins undergoing T(1) -relaxation, is not displacement encoded and impairs the displacement acquired. Tech...

Journal: :CoRR 2017
Huan Liu Haobin Dong Zheng Liu Jian Ge Bing Jie Bai Cheng Zhang

The parameters in a nuclear magnetic resonance (NMR) free induction decay (FID) signal contain information that is useful in magnetic field measurement, magnetic resonance sounding (MRS) and other related applications. A real time sampled FID signal is well modeled as a finite mixture of exponential sequences plus noise. We propose to use the Hilbert-Huang Transform (HHT) for noise reduction an...

2013
Colette Johnen

We propose a fast silent self-stabilizing building a k-independent dominating set, named FID. The convergence of protocol FID, is established for any computation under the unfair distributed scheduler. FID reaches a terminal (also legitimate) configuration in at most 4n+k rounds, where n is the network size. FID requires (k + 1)log(n+ 1) bits per node. keywords distributed computing, fault tole...

Journal: :Circulation 2001
H Miura R E Wachtel Y Liu F R Loberiza T Saito M Miura D D Gutterman

BACKGROUND Flow-induced vasodilation (FID) is a physiological mechanism for regulating coronary flow and is mediated largely by nitric oxide (NO) in animals. Because hyperpolarizing mechanisms may play a greater role than NO in the microcirculation, we hypothesized that hyperpolarization contributes importantly to FID of human coronary arterioles. METHODS AND RESULTS Arterioles from atria or ...

2001
Hiroto Miura Ruth E. Wachtel Yanping Liu Fausto R. Loberiza Takashi Saito Mamoru Miura David D. Gutterman

Background—Flow-induced vasodilation (FID) is a physiological mechanism for regulating coronary flow and is mediated largely by nitric oxide (NO) in animals. Because hyperpolarizing mechanisms may play a greater role than NO in the microcirculation, we hypothesized that hyperpolarization contributes importantly to FID of human coronary arterioles. Methods and Results—Arterioles from atria or ve...

2017
Flavio Cappa Valeria Campos Stella Giannoni Natalia Andino

The effects of poaching on wildlife have been widely studied in conservation biology and can be heterogeneous, particularly on ungulates. These effects can be estimated through different methodologies whose use depends on several conditions such as Flight-initiation distance (FID). Our objectives were: 1- to evaluate whether poaching affects the FID and group structure of a guanaco (Lama guanic...

2001
Hiroto Miura Ruth E. Wachtel Yanping Liu Fausto R. Loberiza Takashi Saito Mamoru Miura David D. Gutterman

Background—Flow-induced vasodilation (FID) is a physiological mechanism for regulating coronary flow and is mediated largely by nitric oxide (NO) in animals. Because hyperpolarizing mechanisms may play a greater role than NO in the microcirculation, we hypothesized that hyperpolarization contributes importantly to FID of human coronary arterioles. Methods and Results—Arterioles from atria or ve...

2016
Colette Johnen

We propose a fast silent self-stabilizing building a k-independent dominating set, named FID. The convergence of protocol FID, is established for any computation under the unfair distributed scheduler. FID reaches a terminal (also legitimate) configuration in at most 4n+k rounds, where n is the network size. FID requires (k + 1)log(n+ 1) bits per node. keywords distributed computing, fault tole...

Journal: :Behavioural Processes 2018
Peter Mikula Gabriel Šaffa Emma Nelson Piotr Tryjanowski

Like other animals, primates respond to predation using behavioural adaptations. Hence, they should optimise their escape strategy under the risk of predation, and flee at a distance, referred to as flight initiation distance (FID), when the fitness-related benefits of staying are balanced against the costs of escape. However, there is an absence of FID studies in primates. In this study, we us...

2011
Fraser A. Januchowski-Hartley Nicholas A. J. Graham David A. Feary Tau Morove Joshua E. Cinner

Prey flight decisions in response to predation risk are increasingly being considered in conservation and management decisions in the terrestrial realm, but are rarely considered in marine systems. This field-based study investigated how the behavioral response of coral reef fish families varied along a gradient of subsistence fishing pressure in Papua New Guinea. Specifically, we examined how ...

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