OBJECTIVE The objective of this report is to describe the methods used to recruit 8- to 10-year-old African-American girls into four 12-week randomized controlled pilot studies on obesity prevention. DESIGN The Girls health Enrichment Multi-site Study (GEMS) involved 4 field centers which independently developed and tested interventions designed to prevent excess weight gain in African-Americ...

Among the different reducing agents tributyltin hydride was found to be a powerful reducing agent for the denitration of a series of tertiary and secondary nitroesters. The organotin residues removed from the crude product using saturated potassium fluoride solution. The yield of the reactions was 62-98%.

In this article, we describe a photosensitizer (PS) whose ability to generate singlet oxygen (1O2) and fluorescence emission has been designed as tumor responsive. More specifically, the PS consists of a silicon phthalocyanine (SiPc) core, axially substituted with two subphthalocyanine (SubPc) units, covalently linked by a disulfide linker, which is cleavable in the presence of a strong reducin...