#### Filter Results:

- Full text PDF available (5)

#### Publication Year

1974

2014

- This year (0)
- Last 5 years (2)
- Last 10 years (2)

#### Publication Type

#### Co-author

#### Journals and Conferences

#### Key Phrases

Learn More

- Maurice W Dysken, Mary Sano, +30 authors Peter D Guarino
- JAMA
- 2014

IMPORTANCE
Although vitamin E and memantine have been shown to have beneficial effects in moderately severe Alzheimer disease (AD), evidence is limited in mild to moderate AD.
OBJECTIVE
To determine if vitamin E (alpha tocopherol), memantine, or both slow progression of mild to moderate AD in patients taking an acetylcholinesterase inhibitor.
DESIGN,… (More)

- William Squire, George Trapp
- SIAM Review
- 1998

A method to approximate derivatives of real functions using complex variables which avoids the subtractive cancellation errors inherent in the classical derivative approximations is described. Numerical examples illustrating the power of the approximation are presented.

- Maurice W Dysken, Peter D Guarino, +29 authors Govind Vatassery
- Alzheimer's & dementia : the journal of the…
- 2014

BACKGROUND
Alzheimer's disease (AD) has been associated with both oxidative stress and excessive glutamate activity. A clinical trial was designed to compare the effectiveness of (i) alpha-tocopherol, a vitamin E antioxidant; (ii) memantine (Namenda), an N-methyl-D-aspartate antagonist; (iii) their combination; and (iv) placebo in delaying clinical… (More)

- Franz Delahan, William F. Klostermeyer, George Trapp
- SGCS
- 1995

In the nine-tails problem, a three by three matrix of coins is given, some heads up and some tails up. A player must flip coins so as to achieve an all tails configuration. However, when a player flips a particular coin, its rectilinearly adjacent neighbors (i.e. its left, right, top and bottom neighbors, if they exist) also flip over. In the March 1995… (More)

In general, we shall start with one 1 in the first row and three l's in the second row. The recurrence then determines the subsequent rows. The first few rows of the rhombus are given in Figure 2. We assume all blank positions are zero. So, for example, when calculating the second entry in the third row the two zeros are assumed to be up two places and up… (More)

- John L. Goldwasser, William Klostermeyer, Michael Mays, George Trapp
- Discrete Mathematics
- 1999

Pascal’s rhombus is a variation of Pascal’s triangle in which values are computed as the sum of four terms, rather than two. It is shown that the limiting ratio of the number of ones to the number of zeros in Pascal’s rhombus, taken modulo 2, approaches zero. An asymptotic formula for the number of ones in the rhombus is also shown. c © 1999 Elsevier… (More)

- William Simons, George Trapp
- Discrete Mathematics
- 1974

- ‹
- 1
- ›