Background: Azithromycin's long serum half-life (∼68 hours) allows for a short 5-day, 3-day,
and now 1-day course therapy with a large 2-g dose. Although the single-dose, 1-day …

The rapid expansion of reverse osmosis technology during the past two decades has
resulted in the development of a variety of new membranes. Unique polymer systems and …

The effects of acetyl content on the transport behavior of asymmetric cellulose acetate
membranes were determined. Acetyl content (AC) was varied by hydrolyzing commercial reverse …

Reducing the absorption difference between fed and fasted states is an important goal in
the development of pharmaceutical dosage forms. The goal of this work was to develop and …

The development of new-generation membranes that can tolerate wide pH ranges, higher
temperatures, and harsh chemical environments and that have improved water flux and solute …

One of the key challenges facing NASA engineers is the development of systems for
separating liquids and gases in microgravity environments. In this paper, a novel membrane-based …

Measurements of hydrolysis rates of homogeneous porous and dense cellulose acetate
membranes were analyzed in terms of external and internal mass transfer, and intrinsic …

… 214 McCRAY & SNOW … origins in material swept up by stellar winds (Castor, McCray &
Weaver … dense downstream flow may break up into sheets or filaments (McCray, …

Processes to remove and/or recover CO₂ from air are essential to the long-term success of
the US space program. In this paper, the results of a preliminary investigation of the use of a …

The control of temperature and humidity in spacecraft cabins is a vital component of
environmental-control and lifesupport systems. Separating the two phases (ie, water and air) that …