Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2008

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 211 - 213 of 213

Full-Text Articles in Entire DC Network

Effects Of Aqui-S Exposure In 3 Species Of Fish From The Sacramento-San Joaquin Delta, California., Melody Danley Jan 2008

Effects Of Aqui-S Exposure In 3 Species Of Fish From The Sacramento-San Joaquin Delta, California., Melody Danley

Graduate Theses, Dissertations, and Problem Reports (ETD)

There is need for an anesthetic to sedate fishes that does not require a mandatory post-exposure withdrawal period. Such an anesthetic could be used to sedate handled fishes as they are moved from tank to tank on the farm, surveyed in the wild, released from state and federal hatcheries, or harvested for human consumption. A proprietary form of clove oil, AQUI-S® , was recently submitted to the U.S. Food and Drug Administration for approval as a 0-day withdrawal anesthetic for use on aquatic organisms. As part of the approval process, a large series of efficacy and toxicity studies are required. …

Go to article

Schoolyard Improvements And Standardized Test Scores: An Ecological Analysis, Russ Lopez, Richard Campbell, James Jennings Jan 2008

Schoolyard Improvements And Standardized Test Scores: An Ecological Analysis, Russ Lopez, Richard Campbell, James Jennings

Gastón Institute Publications

Boston MA’s schoolyards had seriously deteriorated since the middle of the 20th century resulting in dangerous and unusable outdoor spaces. Beginning in the mid 1990s, a program to renovate these schoolyards has resulted in approximately half of the schools now having outdoor recreational, learning and garden spaces. This study compared the 4th grade test score results in renovated vs. unrenovated schools. Controlling for school demographics, schools that had a renovated schoolyard had more of their students passed the state mandated math test (1.06, 95% confidence interval = .00012, .12). Effects on the state mandated English language arts test were not …

Go to article

Introduction To Ecological Landscaping: A Holistic Description And Framework To Guide The Study And Management Of Urban Landscape Parcels, Loren B. Byrne, Parwinder Grewal Jan 2008

Introduction To Ecological Landscaping: A Holistic Description And Framework To Guide The Study And Management Of Urban Landscape Parcels, Loren B. Byrne, Parwinder Grewal

Arts & Sciences Faculty Publications

Urbanized ecosystems and urban human populations are expanding around the world causing many negative environmental effects. A challenge for achieving sustainable urban social ecological systems is understanding how urbanized landscapes can be designed and managed to minimize negative outcomes. To this end, an interdisciplinary Ecological Landscaping conference was organized to examine the interacting sociocultural and ecological causes and consequences of landscaping practices and products. This special issue of Cities and the Environment contains a diverse set of articles arising from that conference. In this introductory paper, we describe the meaning of ecological landscaping and a new conceptual framework that helps …

Go to article

First Prev