Hacking away at the identity of indiscernibles: Possible worlds and Einstein's principle of equivalence
Journal of Philosophy 92 (9):455-466 (1995)
Purpose:Ultraviolet (UV) corneal cross-linking is an accepted method for the treatment of corneal ecstatic disorders. The authors evaluated whether a rapid treatment protocol (higher intensity and shorter irradiation time) could achieve the same increase in corneal stiffness as the currently-used standard protocol.Methods:Stress-strain measurements were performed on porcine corneal strips. The corneas (n=72) were cut into three strips, each randomly receiving a different treatment: rapid (10 mW/c(2), 9 minutes), standard (3 mW/c(2), 30 minutes) or no irradiation (control, 0 mW/c(2)). After irradiation, Young's modulus of each strip was determined. The results of the stress-strain measurements were analyzed statistically.Results:Statistical analysis showed that, after irradiation, the median value of Young's modulus from both active treatment groups (rapid: 3.83 N/m(2); standard: 3.88 N/m(2)) was significantly higher (p<0.05) than that of the control group (2.91 N/m(2)). Treatment increased Young's modulus by a factor of 1.3. However, there was no significant difference (p=0.43) in the median of Young's modulus between the rapid and standard groups.Conclusions:Rapid UV cross-linking treatment can be regarded as equivalent to the standard procedure in terms of increase in corneal stiffness. The new rapid protocol shortens the treatment duration by more than two-thirds, from 30 minutes to 9 minutes. The safety of the higher intensities has to be addressed in further clinical studies
|Keywords||Analytic Philosophy Contemporary Philosophy|
|Categories||categorize this paper)|
References found in this work BETA
No references found.
Citations of this work BETA
Weak Discernibility in Quantum Mechanics: Does It Save PII?Jonas Rafael Becker Arenhart - 2013 - Axiomathes 23 (3):461-484.
Similar books and articles
Symmetrical Universes and the Identity of Indiscernibles.Thomas R. Foster - 1982 - Philosophy Research Archives 8:169-183.
On Some Putative Graph-Theoretic Counterexamples to the Principle of the Identity of Indiscernibles.Rafael De Clercq - 2012 - Synthese 187 (2):661-672.
Why the Principle of the Identity of Indiscernibles is Not Contingently True Either.Steven French - 1989 - Synthese 78 (2):141 - 166.
Brute Facts, the Necessity of Identity, and the Identity of Indiscernibles.Charles B. Cross - 2011 - Pacific Philosophical Quarterly 92 (1):1-10.
Two Spheres, Twenty Spheres, and the Identity of Indiscernibles.Michael Della Rocca - 2005 - Pacific Philosophical Quarterly 86 (4):480–492.
Ontic Structural Realism and the Principle of the Identity of Indiscernibles.Peter Ainsworth - 2011 - Erkenntnis 75 (1):67-84.
The Principle of Equivalence.Michel Ghins & Tim Budden - 2001 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 32 (1):33-51.
The Identity of Indiscernibles and the Co-Location Problem.Robin Jeshion - 2006 - Pacific Philosophical Quarterly 87 (2):163–176.
Added to index2009-01-28
Total downloads47 ( #112,283 of 2,178,189 )
Recent downloads (6 months)2 ( #166,012 of 2,178,189 )
How can I increase my downloads?