Work-Hardening of Incompatible Zinc Bicrystals

Phenomenology and Mechanism of Grain Boundary Sliding in Zinc Bicrystals

Outcome analysis of work-hardening programs.

The competitive marketplace and the demand for accountability by health care payers are strongly influencing the need for work hardening programs to participate in program evaluation and produce outcome data. This study compiled program performance data on 22 work programs in Wisconsin over an 11-month period. Client data related to demographics of gender, age, occupation, insurance coverage, d...

Work hardening: past, present, and future--the work programs special interest section national work-hardening outcome study.

OBJECTIVES A review of outcome research conducted between 1982 and 1992 revealed return-to-work rates for industrial rehabilitation programs that ranged from 50% to 88%. Variations in outcome statistics appeared to reflect discrepancies in factors such as type of research design, initial characteristics of the client sample, and clients excluded from the study group. METHOD A work-hardening o...

Work hardening: occupational therapy in industrial rehabilitation.

Work hardening, presented in this paper as a "new" service for the industrially injured, is actually well grounded in the traditional models and practices of occupational therapy. From the profession's early roots in industrial therapy to the development of a variety of programs for the industrially injured through the 1950s and 1960s, the historical and philosophical bases of occupational ther...

Critical role of zinc in hardening of Nereis jaws.

Hardening of invertebrate jaws and mandibles has been previously correlated to diverse, potentially complex modifications. Here we demonstrate directly, for the first time, that Zn plays a critical role in the mechanical properties of histidine-rich Nereis jaws. Using nanoindentation, we show that removal of Zn by chelation decreases both hardness and modulus by over 65%. Moreover, reconstituti...