Guayule ( A. Gray), a Renewable Resource for Natural Polyisoprene and Resin: Composition, Processes and Applications.

Natural rubber is an essential material, especially for plane and truck tyres but also for medical gloves. Asia ranks first in the production of natural rubber, of which the tree is currently the sole source. However, it is anticipated that this source alone will not be able to fulfill the growing demand.

Impact of climate change on the integrity of the superstructure of deteriorated U.S. bridges.

Bridges in America are aging and deteriorating, causing substantial financial strain on federal resources and tax payers' money. Of the various deterioration issues in bridges, one of the most common and costly is malfunctioning of expansion joints, connecting two bridge spans, due to accumulation of debris and dirt in the joint. Although expansion joints are small components of bridges' superstructure, their malfunction can result in major structural problems and when coupled with thermal stresses, the demand on the structural elements could be further amplified.

Mortality patterns among electrical workers employed in the U.S. construction industry, 1982-1987.

Background: Studies of electrical workers in the utility and manufacturing industries have reported excess site-specific cancer. No previous studies of electrical workers in the construction industry have been conducted.

Methods: Our study evaluated the mortality patterns of 31,068 U.

Cohort mortality study of 57,000 painters and other union members: a 15 year update.

Objectives: To study mortality patterns in the largest existing cohort of painters.

Methods: 15 years of follow up were added to a study of 42,170 painters and 14,316 non-painters based on union records. There were 23,458 deaths, compared with 5313 in the earlier follow up.

End-stage renal disease among silica-exposed gold miners. A new method for assessing incidence among epidemiologic cohorts.

Objective: To examine the association between silica exposure and end-stage renal disease (ESRD).

Design: Retrospective cohort study.

Participants: A cohort of 2412 white male gold miners was studied.

Mortality of Carpenters' Union members employed in the U.S. construction or wood products industries, 1987-1990.

This study evaluated the mortality of 27,362 members of the U.S. Carpenters' Union who died in 1987-1990.

Cancer incidence in the National Health and Nutrition Survey I. Follow-up data: diabetes, cholesterol, pulse and physical activity.

We examined cancer incidence among 14,407 men and women who were enrolled in the National Health and Nutrition Survey I in the early 1970s and then followed through 1987. We studied 657 male and 593 female cancer cases, using Cox regression. Analyses were conducted for all cancers, lung, colorectal, breast, and prostate cancer.