Feldman hypothesis

A significant hysteresis loop, ranging up to the veiy low pressures (Fig. 5.26) is the other experimental result which seems to proof the Feldman hypothesis. These shape of adsorption and desorption curves, resembling that occurring in case of some clay minerals (vermiculite) and the paste, indicates the reversible introducing of water into the stracture of solid phase. The increase of interplanar spaces in clay minerals is in this case frequently observed. 

According to Feldman hypothesis [129], the creep is a symptom of C-S-H gel ordering , ageing and consequently better regularity of this phase structural arrangement. The mutual translation of layers with interlayer water is required, linked with breakdown of the old bonds and formation of the new one. 

A second hypothesis to explain the cardiovascular effects of clonidine involves an interaction with imidazoline-1 receptors (Bousquet and Feldman 1999). However, the available evidence at present does not prove conclusively the imidazoline hypothesis for the mechanism of action of clonidine and analog drugs, like rilmeni-dine and moxonidine (Szabo 2002). 

Mitchell advocated the hypothesis that 2H driven by AjUh directly attack the O of PO in a complex with ADPO and Mg at the active site of F, [113]. However, ATP synthesis takes place in the absence of proton flux down the [154-156]. Feldman and Sigman found that CF, synthesized enzyme-bound ATP from Pj [154]. The reaction did not depend on ADP in the medium indicating that the ADP substrate was tightly bound to CF,. The addition of hexokinase and... 

Many human walnut clinical intervention trials have been reported in addition to the studies discussed here they are summarized in Feldman s review [39].These clinical trials support the hypothesis that a walnut diet improves Upid metabolism and reduces the risk of CHD in normal humans, humans with polygenic hypercholesterolemia, and those with type 2 diabetes. Scientists hypothesize that the effects of diets containing walnuts are due to the amount of (o3 fatty acids, such as a-linolenic acid, and the ratio of ca6 to 0)3 fatty acids in the diets. 

The Feldman and Sereda hypothesis [35, 43, 48, 57, 62, 64] is based on the assumption that the exchange of interlayer water in the C-S-H phase occurs. The volume of this water is equivalent to the volume of adsorbed water reduced by the volume of adsorbed nitrogen The measurements of helium volume... 

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