Spatial Aspects

Steric IS derived from the Greek word stereos for solid and refers to the three dimensional or spatial aspects of chemistry... 

Strickert HH, Tong JR, EUis AB (1982) Luminescent photoelectrochemical cells. 6. Spatial aspects of the photoluminescence and electroluminescence of cadmium selenide electrodes. J Am Chem Soc 104 581-588... 

R. N. Zare (1988) Angular Momentum Understanding Spatial Aspects in Chemistry and Physics (John Wiley Sons, New York). 

E. Tomlinson, (Patho)physiology and the temporal and spatial aspects of drug delivery, in Site-Specific Drug Delivery. Cell Biology, Medical, and Pharmaceutical Aspects (E. Tomlinson and S. S. Davis, eds.), John Wiley Sons. Chichester, 1986, p. 1. 

Comparison (Tables 7-9) shows that 47 and 48 are similar in their host properties, but they are not equivalent in hehavior. Thus, host compound 48 is more qualified to select according to spatial aspects (see benzene derivatives) and, as a rule, it also forms the thermally more stable inclusions. This may be attributed to the rigid molecular geometry of the spirane 48, whereas the biaryl 47 allows sterical adaptation to different guests via the flexible hinge to a certain degree. 

Vaughan-Jones, R. D., Spitzer, K. W., and Swietach, P. (2006). Spatial aspects of intracellular pH regulation in heart muscle. Prog. Biophys. Mol. Biol. 90, 207-224. 

Tissue slices and whole organ culture maintain many spatial aspects of the intact tissue and, like whole cells, maintain the linkage between Phase I and Phase II enzymes (Sipes et al., 1987). Precision-cut tissue slices are more easily and reproducibly prepared than primary hepatocytes. However, viability limitations often restrict studies to a few hours duration. Histological examination of the material after exposure to a xenobiotic is possible with tissue slices. 

Modification of the temporal and spatial aspects of drug release using coating involves applying a layer or layers of retardant material between the drug and the elution/dissolution medium. If the coating material is... 

Regarding the spatial aspects of the enzymatic degradation of CA-g-PLLA, a surface characterization [30] was carried out for melt-molded films by atomic force microscopy (AFM) and attenuated total-reflection Fourier-transform infrared spectroscopy (ATR-FTIR) before and after the hydrolysis test with proteinase K. As exemplified in Fig. 3 for a copolymer of MS = 22, the AFM study showed that hydrolysis for a few weeks caused a transformation of the original smooth surface of the test specimen (Fig. 3a) into a more undulated surface with a number of protuberances of 50-300 nm in height and less than a few micrometers in width (Fig. 3b). The ATR-FTIR measurements proved a selective release of lactyl units in the surface region of the hydrolyzed films, and the absorption intensity data monitored as a function of time was explicable in accordance with the AFM result. 

Do we have data pertinent to the exposure situation to be considered, or are there specific spatial aspects in the exposure regime (e.g., spatial gradient of substance, or spatial distribution of exposed biota) If so, is there a trigger to consider this quantitatively important ... 

Gauge fields (M) that restore local phase invariance are evidently closely related also to the quantum-potential field. The wave function of a free electron, with temporal and spatial aspects of the phase factor separated, may be written as... 

These approaches place particular emphasis on the spatial aspects of the drug absorption from the gastrointestinal tract. The small intestine is assumed to be a cylindrical tube with fixed dimensions where the drug solution or suspension follows a homogeneous flow. Mass balance relationships under steady-state as-... 

Note that this result is independent of the residual stress, because the terms containing (crb + crT) in Eqns. (26) and (33) cancel when inserted into Eqn. (40a). The coefficient x depends on the spatial aspects of crack evolution periodic, random, etc. Simulations for spatial randomness indicate that X = 1.6.29 Moreover, these same simulations indicate that the saturation stress should scale with amc, such that... 

Bolton, R. G. Boddy, L. (1993). Characterisation of the spatial aspects of foraging mycelial cord systems using fractal geometry. Mycological Research, 97, 762-8. 

Frot-Coutaz J, Letoublon R, Degiuli A, Fayet Y, Audiger-Petit C, and Gor R (1985) Spatial aspects of mannosyl phosphoryl retinol formation. Biochimica et Biophysica Acta 841, 299-305. 

Many of these studies have resolved the temporal and spatial aspects of signaling networks. The dynamics of EGE stimulation... 

Zare, R.N. (1988) Angular Momentum understanding spatial aspects in chemistry and physics, John Wiler and Sons New York. 

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