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Spatial sensing

Relationships between stereocenters vary between two extremes. On the one hand, stereocenters may interact strongly in a spatial sense if they are directly joined, proximate to one another, or part of a compact rigid-ring structure. On the other hand, two stereocenters which are remote from one another and/or flexibly connected may be so independent that one cannot be used to provide substrate spatial control for the other. Nonetheless, this latter type of stereorelationship may still be clearable if the target molecule can be disconnected to divide the two stereocenters between two precursors or if an appropriate enantioselective transform is available. [Pg.54]

In brief, we can say that the study of macromolecular compounds has introduced a new dimension into organic stereochemistry. This is true not only in the spatial sense if one considers the shape of the macromolecule, but also in the time sense if one examines the process of polymerization and the transmission of stereoregularity and chirality within each macromolecule. Finally, the study of macromolecules has necessitated the introduction of concepts and methods (e.g., the statistical approach), which are usually not pertinent to the stereochemistry of low molecular weight compounds (4). [Pg.2]

Isomers in the broadest sense are compounds with the same molecular formula but different structures. Isomers are most broadly categorized as either structural isomers or stereoisomers. Compounds that are structural isomers have a different arrangement of atom connectivity relative to each other, whereas compounds that are stereoisomers have the same atom connectivity but the atoms still arrange differently in a spatial sense. We ll begin this section with structural isomers, for which one example is shown in Figure 8.15. [Pg.235]

Dusenbery, D. B., Spatial sensing of stimulus gradients can be superior to temporal sensing for free-swimming bacteria, Biophys. J., 74, 2272, 1998. [Pg.426]

Continuum wave functions are spatially extended and are not normalizable in the usual spatial sense. Instead an energy normalization is chosen.186... [Pg.189]

Together, these profiles characterize the turbulent flow transformation along the canopy, as shown in Fig. 3.31. There are several distributions at each x-location it was explained above why the y-shifted profiles do not coincide. No available theory can predict such a periodic 3d flow structure. However, fortunately, there is the practical interest in profiles which have been averaged in a spatial sense [522], It is very significant that the measurements further downstream along the canopy show less differences between individual profiles, thus validating the continuous approach of mathematical modeling. [Pg.155]

T. Meyer, Spatial sensing in fibroblasts mediated by 3 phosphoinositides,/. Cell Biol. 2000, 151,1269-1279. [Pg.1080]

Strata may be spatial, temporal, or determined by other relevant criteria. For example, in the spatial sense, a series of strata could comprise discrete areas associated with a study location, each with different geology, or different topography, or different history of contamination, or different soils (or aquatic sediments), or waters sampled at different depths within a lake to take account of stratification or, in an estuary, salinity gradient. See Ref. 5 for more detail of stratification issues in water sampling. In the temporal sense, different strata could comprise different seasons, or portions of the diurnal cycle, or time periods relative to a process such as an upstream effluent release. [Pg.7]

C0O2N2] unit in [Co(salen)] are important in a spatial sense. It seems more likely that the differences in reactivity between the two compounds are due to electronic differences. That is, [Co(amben)] has a 82 ground state, whereas that of [Co(salen)] is The pseudo-tetrahedral complexes, Co(btat)X and... [Pg.241]

The gradient sensed by amoebae temporal vs. spatial sensing... [Pg.270]

Maturation of the brain occurs from the back to the front. In the back are the regions that concern direct contact with the environment through sensory function. Just in front of those regions are areas that coordinate the senses and give a spatial sense. The last portion of the brain to mature in the late teens is the prefrontal cortex, the part that helps to organize thoughts, suppress impulses, plan, set priorities, and weigh the consequences of various actions. [Pg.456]

Collins, C.C. 1985. On mobihty aids for the bhnd. In D.H. Warren and E.R. Strelow (Eds.), Electronic Spatial Sensing for the Blind, pp 35 64. Dordrecht, The Netherlands, Matinus Nijhoff. [Pg.1181]

Spatial sense helps for recording the positions of the sensors and all localizing procedures. [Pg.394]

Our new approach includes fractal geometry in describing complexity of the spatial distribution of BaTiOs grains. The best fractal model is a sponge model, or and it is more correct to say. a kind of three -dimensional lacunary set (a set with voids). The structure of tetrahedral influence may be established in each spatial sense, which means that one has a tetrahedral lattice that fills the space. [Pg.83]

Connectivity Continuity, in a spatial sense, of habitat across an area (such as a landscape). [Pg.1098]

Add space adds a spatial sense (not at time gap) to the effect hy panning the sound between the left and right stereo channels. [Pg.151]

Irequencies above the one selected with the slider. This is like a high-shelf filter in some of the EQ plug-ins. You should be careful when filtering the higher frequencies since these are the exact frequencies that are most important to the spatial sense of a sound. [Pg.172]

Canah, C., Mazzorri, C., Larsen, L. B., Heiskanen, A., Martinsen, 0. G., WoUF, A.,. .. Emneus, J. (2015). An impedance method for spatial sensing of 3D cell constructs - towards applications in tissue engineering. The Analyst (in press). doi 10.1039/c5an00987a... [Pg.52]

These reasons limit the use of nucleonic tomography to obtaining average values, accurately in the spatial sense (Figures 6 - 9). On the other hand ECT is used as a crude method of obtaining the solids concentration with fast data acquisition rates (see instantaneous images in Figure 13). [Pg.820]

The word rate here is used not in a temporal sense but in a spatial sense, as in energy per unit crack area this choice conforms witii tiie terminology in tiie literature. [Pg.374]


See other pages where Spatial sensing is mentioned: [Pg.1030]    [Pg.158]    [Pg.224]    [Pg.49]    [Pg.190]    [Pg.394]    [Pg.1070]    [Pg.268]    [Pg.74]    [Pg.272]    [Pg.273]    [Pg.291]    [Pg.292]    [Pg.102]    [Pg.126]    [Pg.162]    [Pg.233]    [Pg.256]    [Pg.1787]    [Pg.132]   
See also in sourсe #XX -- [ Pg.270 , Pg.272 , Pg.291 ]




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Spatial Information Obtained with Sensing Arrays

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