Since saliva is an important mechanism in maintaining one's oral pH level, chronic stimulant abusers who do not hydrate sufficiently may experience demineralization of their teeth due to the pH of the tooth surface dropping too low ( below 5.5 ).
42.
When the fossilized bone was treated over several weeks to remove mineral content from the fossilized bone marrow cavity ( a process called demineralization ), Schweitzer found evidence of intact structures such as blood vessels, bone matrix, and connective tissue ( bone fibers ).
43.
When the fossilized bone was treated over several weeks to remove mineral content from the fossilized bone-marrow cavity ( a process called demineralization ), Schweitzer found evidence of intact structures such as blood vessels, bone matrix, and connective tissue ( bone fibers ).
44.
Since land is naturally fertilized in glacial periods, remineralizing the Earth would emulate the glaciation process, allowing the reversal of what Hamaker and Weaver referred to as the " interglacial soil demineralization and retrogressive vegetational succession " ( decline in the vegetative index ).
45.
Additional observations included the presence of postflight orthostatic intolerance that was still present for up to 50 hours after landing in soe crewmembers, a decrease in red cell mass of 5-20 % from preflight levels, and radiographic indications of bone demineralization in the calcaneus.
46.
The resulting activity shift in the biofilm ( and resulting acid production within the biofilm, at the tooth surface ) is associated with an imbalance between demineralization and remineralisation leading to net mineral loss within dental hard tissues ( enamel and then dentin ), the sign and symptom being a carious lesion.
47.
Weaver explained that Hamaker was convinced that humanity was rushing into the next glacial period due to carbon dioxide build-up after the normal interglacial soil demineralization and retrogressive vegetational succession, as summarized by Johannes Iversen and Svend Andersen, State Geologists from Denmark in the book " The Holocene " by Neil Roberts.
48.
However, scientists such as Mukul Sharmar, Charles A . Perry, Yuk Yung, Nigel Calder, Henrik Svensmark, Eigil Friis-Christensen, Knud Lassen and Alexander Chizhevsky who have cited variations in the sunspot cycle as the dominant mechanism in climate cycles on Earth, not vegetation, have yet to incorporate the demineralization dimension.
