Titlebook: NMR: Principles and Applications to Biomedical Research; Jay W. Pettegrew Book 1990 Springer-Verlag New York Inc. 1990 Optische Kohärenzto

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Solid State 31P and 27Al NMR Studies of Model Membranes and Mammalian Brain: Possible Implications insoluble, and concentrations of dissolved aluminum are, therefore, low in both surface and subsoil water. The solubility of aluminum increases at lower pH values in the presence of calcium which has a buffering effect that facilitates aluminum dissolution (Ganrot 1986).

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Self-Help-Group

High-Resolution NMR of Solids,ation mechanisms rather than as line broadening effects (Lyerla et al 1974). The most important of these are chemical shift anisotropy, dipolar coupling, conformation effects, and quadrupole splittings.

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NMR Imaging: Techniques and Developments,y Bothner-By) or spin warp technique (see chapter by Lowe), are presented elsewhere in this volume. Here we emphasize that NMR images of several different types can be produced, and the practical roles of some of these have not yet been clearly defined.

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Apoptosis

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Nuclear Magnetic Resonance and Cell pH with a Focus on Brain pH,rather than a truly homogeneous solution and local microscopic pH environments probably exist. Nevertheless, “overall” or “mean” or “average” cytoplasmic pH is an important quantity which helps define the cell’s metabolic state.

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er to appreciate the elegance and power of this technology a historical perspective is in order. In 1924 Pauli suggested that hydrogen nuclei might possess a magnetic IIlOlllent. This was in fact confinned by Rabbi in 1939 who demonstrated that a beam of hydrogen molecules in the presence of a magne

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Principles of Pulse NMR Spectroscopy,hem in a magnetic field they will develop a net magnetization. NMR spectroscopy is concerned primarily with compounds of this type. The human body is composed primarily of diamagnetic materials and because of this whole body imaging is possible. Although whole body and other imaging experiments are

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Relaxation Theory with Applications to Biological Studies,hydrogen (.H) NMR imaging for several reasons. Their values affect the selection of pulse sequence parameters in imaging. The differences among the NMR relaxation times of the various tissues and of pathological states of these tissues are crucial to the use of NMR imaging in the detection of anatom