This study was conducted to assess the clinical effect of photodynamic therapy (PDT) in the decontamination of the deep dentin of deciduous molars submitted to partial removal of carious tissue. After cavity preparation, dentin samples were taken from the pulp wall of nineteen deciduous molars before and after PDT application. Remaining dentin was treated with 0.01% methylene blue dye followed ...

In their description of the isolation and properties of ceruloplasmin, Holmberg and Laurel1 (1) noted that this intensely blue copper-protein could be decolorized by reducing agents such as ascorbic acid. Although the decoloriaation was “. . . completely reversible in the presence of oxygen, attempts to (restore blue color by oxidation) with potassium ferricyanide were not successful.” They won...

Recent observations have demonstrated a significant growth in the integrated stellar mass of the red sequence since z = 1, dominated by a steadily increasing number of galaxies with stellar masses M∗ < 10M⊙. In this paper, we use the COMBO-17 photometric redshift survey in conjunction with deep Spitzer 24μm data to explore the relationship between star formation and the growth of stellar mass. ...

In the 70’s and 80’s the success of knowledge-intensive approaches to problem solving eclipsed earlier work on compute-intensive weak methods. However, in recent years, compute-intensive methods have made a surprising comeback. One of the most prominent examples is the success of IBM’s Deep Blue in defeating Gary Kasparov in the 1997 ACM Challenge match. Deep Blue’s performance led Kasparov to ...

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