Binding constants between the glycopeptide antibiotic, Teicoplanin (Teic), and D-Ala-D-Ala terminus peptides were determined by affinity capillary electrophoresis (ACE) and by on-column ligand synthesis coupled to ACE. In the first technique, a plug of Teic and two non-interacting standards are injected and electrophoresed. Analysis of the change in the relative migration time ratio (RMTR) of T...

A high speed stirring method was used to measure the adsorption behavior of 5-octyloxymethyl-8-quinolinol (Hocqn) at the chloroform= water interface over a range of pH 1 13. Results showed the increase in adsorptivity of Hocqn at both low and high pH conditions and indicated that the protonated form (H2ocqn 2þ) was more adsorbable at the interface than the deprotonated form (ocqn ) of this mole...

The goal of the 1993 Los Angeles Region Seismic Experiment (LARSE93) passive phase was to collect waveform data from local and distant earthquakes to study lower crust and upper mantle structural features in southern California, particularly under the San Gabriel Mountains and San Andreas fault. During LARSE93, approximately 88 stations were deployed in a 175-km-long, linear array across the Lo...

Imposing a moderate level of nutrient deficiency may be an effective management strategy to limit vegetative growth and enhance maturity of Pima cotton (Gossypium barbadense L.). Whether such deficiency affects fiber quality of American Pima cotton, however, is not well known. A field study was conducted in 1991 and 1992 to determine the fiber quality responses of Pima cotton to nitrogen and ph...

We consider weak Gabriel drawings of unbounded degree trees in the three-dimensional space. We assume a minimum distance between any two vertices. Under the same assumption, there exists an exponential area lower bound for general graphs. Moreover, all previously known algorithms to construct (weak) proximity drawings of trees, generally produce exponential area layouts, even when we restrict o...

The impact that nitrogen (N), phosphorus (P), and potassium (K) application rates on the sulfur (S) fractions in leaves and fruits of greenhouse-grown cucumbers plants (Cucumis sativus L. cv. Brunex) are presented. The treatments were as follows: N (N11⁄4 5 g NO3NH4=m, N21⁄4 10 g NO3NH4=m, N31⁄4 20 g NO3NH4=m , N41⁄4 40 g NO3NH4=m), two levels of P (P11⁄4 8 g H3PO4=m 2 and P21⁄4 16 g H3PO4=m), ...

Let P be a set of n points in the plane. A geometric graph G on P is said to be locally gabriel if for every edge (u, v) in G, the disc with u and v as diameter does not contain any points of P that are neighbors of u or v in G. Motivated by applications in topology control of wireless networks, [KL03] initiated the study of this graph. An interesting combinatorial question is to bound the edge...