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MeSH Review:

Hardness

Weel, K.G. et al., Royer, A. et al., Okada, K. et al., Rheinstein, D.J. et al., Liatsikos, E.N. et al., et al.

Park, Krejci, Lutz, Okada, Tosaki, Hirota, Hume,

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High impact information on Hardness

Struvite calculi hardness was lowered by 41-52% compared to the dry hardness and uric acid calculi hardness decreased by 25-36%, compared to dry hardnesses [1].
Five whey protein gels, with different gel hardnesses and waterholding capacities, were flavored with ethylbutyrate or diacetyl and evaluated by a 10-person panel to study the relation between the gel structure and the sensory perception, as well as the nosespace flavor concentration during eating [2].
OBJECTIVES: This study was to investigate the effect of saliva used as storage liquid and the length of storage effect on surface hardnesses of Fuji IX (GP) (FIX), Dyract (DR), Z-100 and Estio LC (ELC) [3].
MATERIALS AND METHODS: Plaster of Paris (POP) stone phantoms having ratios of 1:1, 1.5:1, and 2:1 with water were fabricated into cubes of various hardnesses weighing an average of 24.6 g [4].
An analytical method for the determination of glufosinate ammonium and its principal metabolites, AE F064619 and AE F061517, in water of two different hardnesses (5 and 30 DH, French hardness) has been developed and validated [5].

Associations of Hardness with chemical compounds

Uncoated caffeine tablets of four different hardnesses were tested for dissolution rate by the Sartorius (S.S. method) and by the rotating basket method of the U.S.P. XVIII [6].
Basketball shoes of polyurethane and elastomer outsoles, each of three different hardnesses, were tested on clean and dusty hardwood floor samples, and on a sample of an artificial gymnasium flooring [7].

Gene context of Hardness

One-way ANOVA and Tukey was used for tests for the significant differences in hardnesses between 15 minutes, 6 hours, and 6 days after light curing for a given surface [8].

References

Effect of pH on the microhardness of renal calculi. Johrde, L.G., Cocks, F.H. J. Biomed. Mater. Res. (1986) [Pubmed]
Flavor release and perception of flavored whey protein gels: perception is determined by texture rather than by release. Weel, K.G., Boelrijk, A.E., Alting, A.C., Van Mil, P.J., Burger, J.J., Gruppen, H., Voragen, A.G., Smit, G. J. Agric. Food Chem. (2002) [Pubmed]
Surface hardness change of restorative filling materials stored in saliva. Okada, K., Tosaki, S., Hirota, K., Hume, W.R. Dental materials : official publication of the Academy of Dental Materials. (2001) [Pubmed]
Efficiency and efficacy of different intracorporeal ultrasonic lithotripsy units on a synthetic stone model. Liatsikos, E.N., Dinlenc, C.Z., Fogarty, J.D., Kapoor, R., Bernardo, N.O., Smith, A.D. J. Endourol. (2001) [Pubmed]
Determination of glufosinate ammonium and its metabolite (AE F064619 and AE F061517) residues in water by gas chromatography with tandem mass spectrometry after ion exchange cleanup and derivatization. Royer, A., Beguin, S., Sochor, H., Communal, P.Y. J. Agric. Food Chem. (2000) [Pubmed]
A comparison of the dissolution rates of caffeine tablets in a rotating-basket with those in a Sartorius dissolution tester. Kitazawa, S., Johno, I., Minouchi, T., Ito, Y., Okada, J. J. Pharm. Pharmacol. (1977) [Pubmed]
Effects on traction of outsole composition and hardnesses of basketball shoes and three types of playing surfaces. Rheinstein, D.J., Morehouse, C.A., Niebel, B.W. Medicine and science in sports. (1978) [Pubmed]
Hardness of celluloid strip-finished or polished composite surfaces with time. Park, S.H., Krejci, I., Lutz, F. The Journal of prosthetic dentistry. (2000) [Pubmed]

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