Life Sciences Commons^™

Evaluation Of The Essentiality Of Dextran In The Dental Caries Process, William Redman Grigsby

Theses and Dissertations

In summary, the main points to support the view that dextran synthesis is unessential to the dental caries process are presented below:

1 . Dextran-fed, microbe-bearing rats do not experience dental caries.

2 . Lactobacillus casei 4646 has no extracellular dextransucrase enzyme or other extracellular enzymes which release glucose or fructose from sucrose .

3. L. casei 4646 does not synthesize extracellular polysaccharide of the dextran class when grown on sucrose-containing medium.

4. L. casei 4646 does not exhibit in vitro, adherent growth on stainless-steel wire when grown on sucrose-containing medium .

5. L. casei 4646 does not cause dental …

The Effects Of Alcohol On Three Levels Of Complex Human Behavior, Grady Vancil Maraman

Theses and Dissertations

That alcohol affects human behavior has been known for centuries. However, how and why it affects behavior has not been precisely established despite extensive research and study. The inconsistent action of alcohol at different doses on different tissue systems and on different response systems has been well documented (Kalant 1 referenced in 39). The exact sites of action of alcohol in the central nervous system and the relative influence of each of these sites in cognitive and motor behavior are not known. The primary purpose of this experiment was to study the effects of blood alcohol concentrations below 0.100 percent …