An evaluation of the testing procedures used in teaching American history.

Mounted forms, p. I-XI, at end. Typewritten sheets in cover. Thesis (M.A.)--Boston University "Selected bibliography:" p. 138-140

A Lethal Combination That Cannot be Ignored: President Clinton and National Health Insurance

President Clinton started a historic effort to find an acceptable new balance of competing public demands, to reinvent health care in ways that provide somewhat less freedom for patients and doctors and somewhat more cost control. In its mind-boggling complexity, the debate is whether his program or any of its rivals can do what they claim

Rapid placement and anatomical sculpting of hardened posterior composite

Posterior composites have long had a reputation for being difficult and time consuming in clinical practice. In addition to this reputation, it has been noted that recurrent caries and in general failure of these restorations prematurely has been a problem. Relative to amalgams, posterior composites have vexed even good clinical dentist. This video presentation illustrates techniques that not only save time but also create more predictable high-quality restorations

Conjugate Product Graphs for Globally Optimal 2D-3D Shape Matching

We consider the problem of finding a continuous and non-rigid matching between a 2D contour and a 3D mesh. While such problems can be solved to global optimality by finding a shortest path in the product graph between both shapes, existing solutions heavily rely on unrealistic prior assumptions to avoid degenerate solutions (e.g. knowledge to which region of the 3D shape each point of the 2D contour is matched). To address this, we propose a novel 2D-3D shape matching formalism based on the conjugate product graph between the 2D contour and the 3D shape. Doing so allows us for the first time to consider higher-order costs, i.e. defined for edge chains, as opposed to costs defined for single edges. This offers substantially more flexibility, which we utilise to incorporate a local rigidity prior. By doing so, we effectively circumvent degenerate solutions and thereby obtain smoother and more realistic matchings, even when using only a one-dimensional feature descriptor. Overall, our method finds globally optimal and continuous 2D-3D matchings, has the same asymptotic complexity as previous solutions, produces state-of-the-art results for shape matching and is even capable of matching partial shapes

Shear Bond Strength of Nine Dual Cured Build-Up Materials and a Light-Curing Adhesive System on Dentin

The purpose of this study was to measure the shear bond strength of nine different commercially available dual cured core build-up materials on human dentin in conjunction with a light curing adhesive system. The null hypothesis was that there is no statistical significant difference among the core build-up systems