Report cards in physical education.

Thesis (Ed.M.)--Boston Universit

York\u27s Twin Pine Camps

A brochure highlighting scenery and recreation opportunities of the Katahdin mountain range between Greenville and Millinocket, Maine. Includes several photographs and a map of the Katahdin District showing the location of York\u27s Twin Pine Camps, circa 1900

Designing for Metaphor in a Study of Adult Educators: An Exploration and Critique of Metaphor Analysis

The authors argue that designing for metaphors in case study can offer insight into how adult educators view their roles and responsibilities in the classroom. They also critique metaphor analysis, arguing that, like all dialogue with participants, metaphors must also be analyzed within the space of the interview

In vitro expanded human CD4+CD25+ regulatory T cells suppress effector T cell proliferation.

Regulatory T cells (Tregs) have been shown to be critical in the balance between autoimmunity and tolerance and have been implicated in several human autoimmune diseases. However, the small number of Tregs in peripheral blood limits their therapeutic potential. Therefore, we developed a protocol that would allow for the expansion of Tregs while retaining their suppressive activity. We isolated CD4+CD25 hi cells from human peripheral blood and expanded them in vitro in the presence of anti-CD3 and anti-CD28 magnetic Xcyte Dynabeads and high concentrations of exogenous Interleukin (IL)-2. Tregs were effectively expanded up to 200-fold while maintaining surface expression of CD25 and other markers of Tregs: CD62L, HLA-DR, CCR6, and FOXP3. The expanded Tregs suppressed proliferation and cytokine secretion of responder PBMCs in co-cultures stimulated with anti-CD3 or alloantigen. Treg expansion is a critical first step before consideration of Tregs as a therapeutic intervention in patients with autoimmune or graft-versus-host disease

Composition of Ancient Peruvian Copper

Author Institution: Department of Chemistry, The Ohio State University, Columbus, 43210omplete quantitative analyses were made of samples of metal taken from fifteen Peruvian copper objects that came from various sites and ranged in date from the fourth to the fifteenth century A.D. Twelve of the samples were found to be composed of arsenical copper containing a wide variety of impurities. One was native copper and one other was apparently native copper modified by heat treatment. Only one sample contained enough tin to warrant classification as bronze. Some tentative general conclusions are advance