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Extrinsic consequences

Upon Triton X-114/water phase partitioning of photosystem I particles, most of the proteins that were released by the high salt wash (5.0, 8.2, 17.2 and 19.3 kDa), all partitioned to the aqueous phase (fig. 2 lane 1). This is in line with the washing experiment and confirms that these photosystem I proteins are hydrophilic and consequently extrinsic membrane proteins. In this experiment we were not able to resolve the 10.5 kDa polypeptide. [Pg.1542]

Semiconducting Ceramics. Most oxide semiconductors are either doped to create extrinsic defects or annealed under conditions in which they become non stoichiometric. Although the resulting defects have been carefully studied in many oxides, the precise nature of the conduction is not well understood. Mobihty values associated with the various charge transport mechanisms are often low and difficult to measure. In consequence, reported conductivities are often at variance because the effects of variable impurities and past thermal history may overwhelm the dopant effects. [Pg.357]

The expert tried to optimise the design of unbreakable crockery. First he wanted to find reasons for using ceramic as the main material in terms of desired properties. From this first step, he concluded that ceramic had some advantages over metals or composites. The expert made a sharp distinction between intrinsic and extrinsic properties. The choice of type of ceramics was not relevant becanse the desired properties are extrinsically determined. Thns relevant properties cannot be much influenced by the difference in bonding strength due to the different types of ions of the material. Consequently, the properties of ceramic crockery are not mnch inflnenced by the actual choice of ceramic material. Because of this, the expert did not inclnde the ionic stmcture in his reasoning. When he was asked why he did not nse this snb-microscopic level, he explained it was not necessary becanse this [the desired properly] is not imdeigoing influences at atomic level at all . [Pg.201]

Myelin in situ has a water content of about 40%. The dry mass of both CNS and PNS myelin is characterized by a high proportion of lipid (70-85%) and, consequently, a low proportion of protein (15-30%). By comparison, most biological membranes have a higher ratio of proteins to lipids. The currently accepted view of membrane structure is that of a lipid bilayer with integral membrane proteins embedded in the bilayer and other extrinsic proteins attached to one surface or the other by weaker linkages. Proteins and lipids are asymmetrically distributed in this bilayer, with only partial asymmetry of the lipids. The proposed molecular architecture of the layered membranes of compact myelin fits such a concept (Fig. 4-11). Models of compact myelin are based on data from electron microscopy, immunostaining, X-ray diffraction, surface probes studies, structural abnormalities in mutant mice, correlations between structure and composition in various species, and predictions of protein structure from sequencing information [4]. [Pg.56]

Whether or not chemical reactivity hazards are present is a function not only of each chemical s reactivity (by itself and in combination), but also of various extrinsic factors i.e., factors that are not intrinsic properties of the chemicals being handled. As the design for a facility progresses, decisions will be made regarding these factors that will affect the magnitude of the chemical reactivity hazards and the potential consequences if their control is lost. A partial list of extrinsic factors includes ... [Pg.93]

One reason for this was that some of the conditions had relatively trivial consequences for the patients. In other cases, like porphyria or hemophilia, it would be another 20 to 30 years before the biochemical abnormality could be identified. Furthermore clinical interests at the time largely focused on diseases with extrinsic origins—bacterial or viral infections—when constitutional idiosyncracies appeared of little relevance. [Pg.43]

We note that the defect energy contribution associated with extrinsic disorder varies considerably as a function of the partial pressure of oxygen of the system. These energy amounts may significantly affect the intracrystalline disorder, with marked consequences on thermobarometric estimates based on intracrystalline distribution. As we will see in detail in chapter 10, most of the apparent complexities affecting trace element distribution may also be solved by accurate evaluation of the defect state of the phases. [Pg.205]

Let us imagine now that for some reason, either intrinsic or extrinsic, the linear chain from Fig. 1.28(a) dimerizes but preserves its ID structure. The new distribution is illustrated in Fig. 1.29(a). The first consequence is that the period... [Pg.67]

In ethical committees and public debates the emphasis is on the so-called extrinsic concerns the risks for human health, for animals and for the environment. Most methods of risk analysis look only at the consequences and the effects of genetic engineering within the framework of a utilitarian ethics (weighing costs and benefits). [Pg.132]

However, the extrinsic analogy masks a principal difference consisting in the fact that in the case where chemical induction reactions are interrelated, consequently, they may not be described by two independent systems of differential equations, as for parallel reactions. If one makes an attempt to describe them by kinetic reactions for consecutive (or consecutive-parallel) reactions, similar to scheme (3.17), then conjugated reactions will be reduced to consecutive reactions, from which they principally differ. So what are the kinetic expressions that may show the individuality of chemical induction ... [Pg.55]

In Minero s Case 2, the concentration of the substrate is high or it is very hydrophobic, although it should be borne in mind that such a scenario may result in the oxidised substrate behaving as an extrinsic recombination centre. A direct consequence of this is that Minero s model is no longer applicable as his simplified kinetic scheme did not consider this reaction. Thus, the utility of the resultant expressions is limited to mainly very hydrophobic or poor water soluble compounds at low concentrations. Under these conditions, equation (9.59) simplifies to... [Pg.324]

But especially since a predicted phenotype based on genotyping data was used to define the study-groups, this investigation cannot consider all the extrinsic and intrinsic factors influencing the real activity of enzymes and transporters. During the further clinical development additional (population) analyses and studies might be required to elucidate the respective influence of the DME+T polymorphism and its consequences further. [Pg.711]


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See also in sourсe #XX -- [ Pg.159 , Pg.207 , Pg.208 ]




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