An Era of Hazard: Persistent Organic Pollutants By Marco A. Olsen, S.J.D. Candidate In May 2001, representatives from over 122 countries, NGOs representing citizens and the chemical industry, met in Stockholm to adopt and open for signature The Stockholm Convention on Persistent Organic Pollutants. The Convention is a legally binding treaty designed to protect human health and the environment f...

A friendly benign, green, rapid and facile strategy for synthesis a series of arylquinoxalines was achieved by condensation of aromatic 1,2-diamines with arylglyoxals under clay-catalyzed as an inexpensive and eco-friendly catalyst using grindstone chemistry. Significant decreases in reaction times and high yields have been observed by this green chemistry approach in comparison with previously...

This paper describes a media-friendly congestion control algorithm suited for multimedia streaming in best-effort networks. The transmission rate computed by this algorithm follows the shape of the transmission rate of a TCP-friendly congestion control, but it considers also the distortion it would create in the stream perceived by the receiver. Based on this predicted distortion, the media-fri...

Let G = (V,E) be a connected simple graph. A labeling f : V → Z2 induces an edge labeling f : E → Z2 defined by f(xy) = f(x) + f(y) for each xy ∈ E. For i ∈ Z2, let vf (i) = |f−1(i)| and ef(i) = |(f+)−1(i)|. A labeling f is called friendly if |vf (1) − vf(0)| ≤ 1. For a friendly labeling f of a graph G, we define the friendly index of G under f by if(G) = ef (1) − ef(0). The set {if(G) | f is a...

Let G = (V,E) be a simple graph. An edge labeling f : E → {0, 1} induces a vertex labeling f : V → Z2 defined by f(v) ≡ ∑ uv∈E f(uv) (mod 2) for each v ∈ V , where Z2 = {0, 1} is the additive group of order 2. For i ∈ {0, 1}, let ef (i) = |f−1(i)| and vf (i) = |(f+)−1(i)|. A labeling f is called edge-friendly if |ef (1) − ef (0)| ≤ 1. If (G) = vf (1) − vf (0) is called the edge-friendly index o...

The purpose of this study is to find a method for measuring the volition level in elderly patients during gait training physical therapy. First, both the walking speed and tempo of the elderly patients were experimentally measured with a video camera under musical stimulation, however, neither walking speed nor tempo was directly related to the subjects’ will or level of enthusiasm to undergo t...