Potential influence

With this approach, when an element becomes severly distorted, it is eliminated from the computational grid and becomes a free mass point. Clearly, care must be taken to avoid eliminating elements that could potentially influence the problem at some later time. An example of a three-dimensional Lagrangian calculation that uses the eroding element scheme is presented in the next section. 

The potential influence of shape on the correct design of laboratory test-pieces has been discussed in detail by Romanski. Samples of iron in the form of discs, cylinders, plates or parallelepipeds, and of a wide range of areas, were sulphidised under controlled conditions. The parabolic rate constant could be expressed in terms of the area A of the samples by... 

Fig. 8-32 Examples of how temperature, pressure, and takeoff speed (time) variations can potentially influence the shape of the extrudate.

Metal Ecotoxicology in Fluvial Biofilms Potential Influence of Water Scarcity... 

Fig. 6. Sequence comparisons of Rieske proteins from spinach chloroplasts, beef heart mitochondria, green sulfur bacteria, and firmicutes. The extended insertion of proteobacterial Rieske proteins as compared to the mitochondrial one is indicated by a dotted arrow. The redox-potential-influencing Ser residue is marked by a vertical arrow. The top and the bottom sequence numberings refer to the spinach and bovine proteins, respectively. Fully conserved residues are marked by dark shading, whereas the residues conserved in the b6f-group are denoted by lighter shading.

In case (1) the different samples must be individually prepared. In the strictest interpretation of this rule, every factor that could conceivably contribute to the result needs to be checked for bias, i.e., solvents, reagents, calibrations, and instruments. That this is impractical is immediately apparent, especially because many potential influences are eliminated by careful exper-... 

Of probably greater importance is the effect of local concentration gradients. For example, analysis for a given constituent in the entire meat mass does not reflect the real concentration at a given point. For example, DNA is localized in the nuclei and lipid is localized predominantly in the adipose cells. Another factor of potential influence in reaction schemes for nitrite is the fact that polar-nonpolar interfaces are present as a result of structural compartmentalization. In an adipose cell, the lipid is contained as the body of the cell, but it is surrounded by a thin layer of sarcoplasmic protein. Therefore, large surface areas are involved. 

Another example are the sometimes rather complex relations existing between the potential and the reaction rate. The electrode potential influences not only the parameter h [see, e.g., Eq. (14.15)] but also the degree of surface coverage by reactant particles [i.e., the coefficients in Eq. (14.18) or (14.20)]. When a sharp drop in adsorption occurs with increasing electrode polarization (rising values of hj, the monotonic relation between reaction rate and potential may break down and the current actually may decrease within a certain region while polarization increases. 

The presence of solution at a metal surface, as has been discussed, can significantly influence the pathways and energetics of a variety of catalytic reactions, especially electrocatalytic reactions that have the additional complexity of electrode potential. We describe here how the presence of a solution and an electrochemical potential influence the reaction pathways and the reaction mechanism for methanol dehydrogenation over ideal single-crystal surfaces. 

An understanding of the residual catalyst content of prepared materials is important as it could potentially influence materials ageing and reliability. For FeCl3, the co-ordination by water to the Fe3+ will result in the formation of acidic species that could induce hydrolysis and scission of the Si—O—Si linkage. We have utilised Mossbauer spectroscopy to assess the nature of the FeCl3 catalyst in the final polymer. Our work in this area is quite original, as there are no reports of any such studies being performed previously on these materials. 

Information on which parasite products might regulate infected muscle cell characteristics is unresolved. Parasite proteins will be the focus of this discussion. This focus results in part from general lack of information on other secreted products/metabolic wastes and their potential influences on the host cell. In addition, arguments for cell-permeable parasite products are less compelling, and no clear evidence exists for a bystander effect in which bona fide infected cell characteristics become established in neighbouring, uninfected host muscle cells. 

Recent work at Diversa has provided some insights into the host effects on desulfurization. It was reported that in addition to the obvious substrate transport and growth differences between various strains of same genus, the intracellular redox potential can potentially influence the rate as well as extent of desulfurization [219], Additionally,... 

Lubiniecki, A. 1997. Potential influence of international harmonization of pharmaceutical regulations on biop-harmaceutical development. Current Opinion in Biotechnology 8(3), 350-356. 

The Ebro catchment is the largest river basin in Spain. It covers an area of 85,362 km2 (http //www.chebro.es) and receives the potential influence of three million people. It suffers a considerable ecological impact from different industrial activities located predominantly in the last third of its course. These activities result on the release to the Ebro River and to some of its tributaries of Tm quantities of chlorinated organic compounds, PBDE and other brominated flame retardants, mercury, and other metals. In addition, intensive agricultural practices, mainly concentrated in the last 30 km of the river course and in its Delta, imply the use of large quantity of pesticides and fertilizers. In this paper, we review physiological effects of these pollutants in resident fish and shellfish populations and provide a general picture of the health status of the low course of the Ebro River. 

The methodology for conducting aquatic model ecosystem studies was well established by the late 1990s. However, the use of the data in risk assessments raised a number of uncertainties regarding their interpretation and implementation [32]. Four of the uncertainties that were identified were the extent to which aquatic model ecosystem data generated in one location could be applied to another situation, the potential influence of mixtures of chemicals or stressors, whether the timing (season) of application would influence the outcome of the study, and whether differences in ecosystem properties (e.g., trophic status) might influence the results. 

The potential influence of the dendrylation on the functional core unit includes sometimes a drastically increased molecule size as well as a steric shielding (encapsulation) and a micro-environment different and isolated from its external surroundings, eg., unimolecular micellar structures, electron-rich shells, solubilization. It is even possible to activate the core unit by both energy and electron transfer processes. In the following subsections, these design possibilities will be dealt with in more detail. 

Special attention was paid to the potential influence on phenylketonurics (PKU), as aspartame contains phenylalanine. As persons suffering from PKU should avoid uncontrolled intake of phenylalanine-containing food constituents or food additives, most countries require a warning on aspartame-sweetened products unless the aspartame level brought about by constituents of these products will exceed the aspartame levels.1314 Evaluations of aspartame were carried out by JECFA, and an ADI of 0-40mg/kg of body weight was allocated.15 The SCF allocated the same level,10 whereas the FDA published a value of 50 mg/kg.16... 

Seaton MJ, Schlosser PM, Medinsky MA. 1995. In vitro conjugation of benzene metabolites by human liver Potential influence of interindividual variability on benzene toxicity. Carcinogenesis 16 1519-1527. 

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