Dissolution kinetics of zinc oxide (ZnO) powders used as feed additives for supplementation in diet animals is studied relation to the powder physicochemical characteristics. The fundamental issue discrimination reaction-limited or diffusion-limited dissolution into a stirred liquid medium addressed. Relationships between and properties are investigated set 34 ZnO samples various origins. A pri...

In this paper an approach to the study of relationship dissolution as a consequence of midrange network change is presented. The key idea is to explain two divergent views of the possibility for legal redress following dyadic relationship disengagement: long term relationship as implied contract, and contract-in-law. An empirical example of an exclusive customer-supplier relationship is present...

This randomized clinical trial replicated the efficacy of the ePREP preventive intervention for mental health and relationship relevant outcomes in a sample of 77 college students. It extended previous research by demonstrating efficacy at a 10-month follow up. Participants in the ePREP condition experienced improved mental health and relationship relevant outcomes relative to those who receive...

The purpose of this study was to develop a suitable dissolution test for feverfew products and to investigate the parthenolide content, disintegration, and dissolution performance of several marketed feverfew products. Parthenolide content was determined by a validated HPLC method. Disintegration was tested according to the USP requirements for botanical dosage forms. A suitable dissolution tes...

S resulting in sinkholes within dissolution mine fields in and around the city of Hutchinson, Kansas, USA (Figure 1) has been reported for more than 90 years. Salt dissolution and the resulting unpredictable upward migration of the dissolution voids can be observed both in proximity to well bores (dissolution mining, brine disposal, and oil wells; seismic shot holes, etc.) and in areas known to...

Introduction Correlations between in vitro and in vivo data (IVIVC) are often used during pharmaceutical development in order to reduce development time and optimize the formulation. A good correlation is a tool for predicting in vivo results based on in vitro data. IVIVC allows dosage form optimization with the fewest possible trials in man,fixes dissolution acceptance criteria,and can be used...

Event history data provide a longitudinal record of the timing of events such as partnership formation and dissolution, births, and changes in employment and housing. Typically outcomes of one process will influence the occurrence of events in another process. For example the presence of children, who constitute prior outcomes of the fertility process, is often found to be negatively associated...