This decommissioned ERA site remains active temporarily to support our final migration steps to https://ualberta.scholaris.ca, ERA's new home. All new collections and items, including Spring 2025 theses, are at that site. For assistance, please contact erahelp@ualberta.ca.
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Spring 2015
Arsenic (As) concentration above the Health Canada and WHO drinking water guidelines of 10 µg L-1 in the Cold Lake area, Alberta is an issue of concern for environmental and human health. The source of groundwater As is ambiguous. This study was initiated to characterize the surficial deposits...
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Molecular and functional bases of coordination in early branching metazoans – insights from physiology and investigations of potassium channels in the Porifera
DownloadFall 2010
Tompkins MacDonald, Gabrielle Jean
Sponges are filter feeders that lack nerves and muscle but are nonetheless able to respond to changes in the ambient environment to control their feeding current. Cellular sponges undergo coordinated contractions that effectively expel debris. Syncytial sponges propagate action potentials through...
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Fall 2023
In river freeze-up periods, small disc-shaped frazil ice forms during supercooling in turbulent river flow. Under continuous cooling, these particles collide and freeze to form frazil flocs and entrain suspended sediments. Sediment-laden flocs might rise to the surface and freeze into frazil...