Research

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PSU Study Finds That Leaving Welfare for Work Means Losing Health Care for Many Oregonians

A recent study from Portland State University (PSU) found that 40 percent of adults are without health insurance within 18 months of leaving welfare for work, as are 22 percent of children.

Oregon Population Growth Continues in 2004

Oregon’s state population grew at a rate of 1.2 percent in 2004, according to estimates prepared by the Population Research Center at Portland State University.

The center’s final certified estimates indicate that the state’s population grew to 3,582,600 for the year ending July 1, 2004, an increase of 41,100 people, or 1.2 percent, from the year ending July 1, 2003, which saw a gain of 36,800, or 1.1 percent. Oregon’s natural increase (births minus deaths) was 17,922, accounting for 44 percent of the annual growth. The remaining 56 percent was due to net migration.

Survey Finds 81 Introduced Aquatic Species in the Lower Columbia River; Eight Previously Undetected

Scientists at Portland State University, the University of Washington and Oregon State University, with the support of the Ports of Portland and Astoria, Ore., have jointly completed the first-ever comprehensive survey of nonnative aquatic plants and animals in the lower Columbia River. A total of 81 species including fish, aquatic plants, crustaceans and worms have been introduced since the mid-1800s.

Hot Time in the City: Researchers Examine Role of Human Behavior on Urban Climate

Researchers at Portland State are taking the lead in analyzing to what extent human behavior impacts urban climates, and assessing the role that public policies play in affecting heat waves and episodes of poor air quality.

The project, "Complex Interactions Among Urban Climate, Air Quality, and Adaptive-Reactive Human Response," is funded by a $1.7 million grant from the National Science Foundation's Biocomplexity in the Environment initiative, and runs from September 2004 though February 2009.