Assessment of multiple herbicide protection seed treatments for seed-based restoration of native perennial bunchgrasses and sagebrush across multiple sites and years.

The invasion of exotic, annual plant species is a leading contributor to ecological degradation in drylands globally, and the use of pre-emergent herbicide to control these species is common. Pre-emergent herbicides pose challenges for seed-based restoration due to toxicity to the seeds of desired species. Herbicide protection (HP) technologies pose a potential solution by using activated carbon seed treatments to protect desirable seeds from herbicide exposure.

Early nighttime testosterone peaks are correlated with GnRH-induced testosterone in a diurnal songbird.

Experimental manipulation has established testosterone as a potent, pleiotropic regulator coordinating morphology, physiology and behavior. However, the relationship of field-sampled, unmanipulated testosterone concentrations with traits of interest is often equivocal. Circulating testosterone varies over the course of the day, and recent reports indicate that testosterone is higher during the night in diurnal songbirds.

An investigation of factors associated with infant mortality in two midwest counties.

The retrospective research study was designed to investigate the relationship between infant mortality and the six variables of early prenatal care, immaturity, maternal age, Maternal education, and socioeconomic status in two midwestern counties. Data from birth and birth and death cohort records were analyzed. The Health Belief Model was used as the theoretical framework.

Life in migrant camps for children-a hazard to health.

Migrant workers are a national resource as they plant, maintain, harvest, and process America's food. However, migrant workers and their children encounter many health hazards in the course of providing this service to the nation. This article describes life among migrants, and the health hazards to which they are constantly exposed.