A fact that should be noticed is: although neither the technique of Hölder's estimates nor Harnack inequality can be applied to get the growth of solutions in the case of (1< p<2) in [5], a 'minimum principle (in spatial variables)' for singular parabolic equations given in [6] (Lemma 2.3) may be used in our problem as a substitute tool at this step.
Hence, where mammograms or X-rays are not available, an MD tissue index could be a valuable substitute tool to guide the selection of HMD and LMD breast tissue for future studies.
One limitation is that although the retro-pre model may reveal valuable information, it is not a substitute tool for an objective measure or a gold standard, but can be used where a large number of skills are to be assessed at one point in time.
If you have already been using a free e-mail program like Yahoo Mail or Google Gmail, you have some experience with substituting tools on the Web for programs residing on the hard drive of your computer.
Professor Goldstein, who is on leave from L.B.S. while working as a research scientist for Yahoo in New York, asked that students, in the spirit of the course, reduce paper use to the minimum by substituting online tools for storing and exchanging information.
Besides the preventive and therapeutical strategies generally recommended for nickel-sensitized individuals, already discussed in this article, there is the necessity to improve the workplace environment by eliminating and substituting metallic tools.
Democracy as agency is radically different than the shriveled sense of "democracy" in today's public discussion, where tools substitute for substance.
Currently, no data are available on GFD review outcomes in different countries, and there is no evidence that a careful review can substitute for other tools (eg, biopsy) to predict mucosal damage.
I learned that things could be accomplished without the proper tools, substituting sheer sweat and determination".
These methods with low instrumental requirements were soon substituted by dedicated tools for relative protein quantification such as the differential gel electrophoresis (DIGE), a 2D gel electrophoresis (ELPHO) combined with fluorescent dyes [35].
