Results 281 to 290 of about 19,218,504 (341)
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Postgraduate Medical Journal, 2016
About 15% of basic specialist trainees (ST1–ST3) in paediatrics leave the specialty.1 The single most important factor for staff retention is overall job satisfaction which is influenced by a variety of factors.2 We aimed to explore the views of paediatricians on job satisfaction, with a view to identifying modifiable factors. We conducted a web-based
Manisha, Ramphul +2 more
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About 15% of basic specialist trainees (ST1–ST3) in paediatrics leave the specialty.1 The single most important factor for staff retention is overall job satisfaction which is influenced by a variety of factors.2 We aimed to explore the views of paediatricians on job satisfaction, with a view to identifying modifiable factors. We conducted a web-based
Manisha, Ramphul +2 more
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Relaxation Times in Magnetic Resonance
Physical Review, 1955Line-widths and relaxation times in magnetic resonance are discussed via a random walk model which is derived by a simple argument. Using the result, various topics in nuclear resonance and in conduction-electron spin resonance are discussed. The physical basis for the effect of motion in narrowing resonance lines is clearly evident, and a simple ...
Pines, David, Slichter, Charles P.
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Nursery World, 2015
Working in the baby room can be rewarding, but it can also prove stressful and emotionally challenging.
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Working in the baby room can be rewarding, but it can also prove stressful and emotionally challenging.
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Dielectric Relaxation Time and Relaxation Time Distribution of Alcohol−Water Mixtures
The Journal of Physical Chemistry A, 2001Complex permittivity was measured in the frequency range from 10 MHz to 20 GHz at 25 °C for water mixtures of 22 aliphatic alcohols. The molecular structures of these alcohols systematically changed with the number of carbon atoms and hydroxyl groups, and their positions in the molecules.
Seiichi Sudo +3 more
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Relaxation time measurements in NMR imaging. Part I: Longitudinal relaxation time
Concepts in Magnetic Resonance, 1993AbstractRelaxation time measurements are important in magnetic resonance imaging. This paper discusses the need for creating calculated relaxation time images and it reviews current practices in the field. Imaging techniques based on inversion recovery, partial saturation, and variable‐tip‐angle experiments, as well as single‐shot methods that employ ...
Eleni Kaldoudi, Steve C. R. Williams
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The Conundrum of Relaxation Times
Nuklearmedizin, 1988The current theories of proton relaxation times fall short of explaining satisfactorily the physical and biological mechanisms responsible for the dissimilarities of relaxation behavior in normal and pathological tissues. An alternative approach to understand these mechanisms is needed.
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The quagmire of relaxation times
Medical Hypotheses, 1988NMR researchers continue to be puzzled by the quagmire of relaxation times of normal and malignant cells. Here a simple theory points out that the dissimilarities of relaxation behavior are not due to macromolecule alterations or phase transition in the water but to the consumption of dissolved oxygen in the cell associated water.
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Relaxation times and NMR signals
Magnetic Resonance Imaging, 1984The strength of signals in magnetic resonance imaging (and the resulting image contrast) depends not just on the number density of the nuclei being detected, but also on the relaxation times, T1 and T2. The relationship of signal strength to relaxation time depends on the particular choice of pulse sequences used to produce the signals.
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Optician
Optician presents a selection of relaxation lenses designed to reduce eye strain
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Optician presents a selection of relaxation lenses designed to reduce eye strain
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