Fracture Resistance Behaviors of Titanium-Zirconium and Zirconia Implants.

Purpose: To evaluate the fracture resistance behaviors of titanium-zirconium, one-piece zirconia, and two-piece zirconia implants restored by zirconia crowns and different combinations of abutment materials (zirconia and titanium) and retention modes (cement-retained and screw-retained zirconia crowns).

Material And Methods: Three research groups (n=12) were evaluated according to combinations of abutment material, retention mode, and implant type. In the control group (TTC), titanium-zirconium implants (∅ 4.

Effects of occupational therapy home service on patients with rheumatoid arthritis.

Because there is little information about the efficacy of home occupational therapy, we decided to assess the effects of a home service on patients with rheumatoid arthritis. 105 patients aged 18-70 years, on stable medical therapy, were randomised to receive a 6-week comprehensive programme of occupational therapy (experimental group, 53 patients) or to receive no such treatment (control group, 52). At 6 weeks, control patients received the experimental regimen, and experimental patients were continued on treatment as needed up to 12 weeks.

Functional and metabolic heterogeneity among normal neutrophil subpopulations.

In this study, normal human peripheral blood neutrophils were separated into subpopulations by centrifugation on discontinuous Percoll density gradients and further characterized according to various functional and metabolic capabilities. Chemotaxis was measured in response to optimal concentrations (20 nM) of the chemotactic peptide N-formyl-methionyl-leucyl-phenylalanine (fMLP). According to a population ratio analysis, the majority of cells that contain the highest proportion of fast migrating cells are isolated between the densities of 1.

An interactive computer program that accurately estimates the ED50, its standard error and other parameters related to the probit regression line.

A program suitable for terminal, conversational-mode usage was developed in the BASIC language to compute the median effective dose (LD50), various error terms, and confidence intervals. The overall algorithm used in the program was based on a method described by Finney. The accuracy, speed and flexibility of the program makes the terminal approach an efficient alternative to simple graphic methods.