Green-Emitting GdGaO: Tb Nanoparticles Phosphor: Synthesis, Structure, and Luminescence.

Nano- and microceramics of GdGaO garnet doped with 1 mol % Tb ions were synthesized via co-precipitation and high-temperature solid-state reaction methods. X-ray diffraction measurements confirmed the formation of the garnet structure with Ia3d space group in all investigated samples. Atomic force microscopy surface images and grain-size distribution diagrams of GdGaO: 1 mol % Tb nanoceramics with 300 and 400 g/mol of polyethylene glycol (PEG) were obtained.

Documenting changes in the delivery of substance abuse services: the Status of the "100 best treatment centers for alcoholism and drug abuse" of 1988.

This study explores the impact of managed care on the substance abuse service system by reviewing the current status of the programs that were among the elite service providers in 1988. A survey was conducted assessing the status of the one hundred centers touted as the 100 best treatment centers for alcoholism and drug abuse (Sunshine& Wright, 1988). Findings include the following: Almost a third of these centers (31%) are no longer providing services, the majority of the programs who reported data continue to provide services primarily at a residential level of care (92%); however occupancy rates have dropped, the number of annual inpatient admissions have risen, and the length of treatment episodes has significantly decreased.