Search

2003

Weeks, B., Wilson, G. W.

Net solar radiation is one of the key factors affecting evaporation from soil covers on waste rock dumps. While net solar radiation is normally taken as a uniform parameter over a site for modelling purposes, there can be significant variation in the radiation actually received on various...

2002

Bork, Edward W., Willms, Walter D., Adams, Barry W.

A three year monitoring program evaluated the effects of a December 1997 wildfire in southwest Alberta, on Foothills Rough Fescue grassland species composition, ground cover, herbage production, and forage quality. Changes in species abundance included a reduction in grass cover (p<0.10) after...

2010

Brigandt, Ingo

The discussion presents a framework of concepts that is intended to account for the rationality of semantic change and variation, suggesting that each scientific concept consists of three components of content: (1) reference, (2) inferential role, and (3) the epistemic goal pursued with the...

2013

Gardner Costa, J.M., Daly, c., Kovalenko, K.E., Dixon, D.G., Ciborowski, J.J.H., Slama, C.A., Kennedy, K., Foote, A.L., Liber, K., Smits, J.E.G., Frederick, K.R., Roy, M.C., Farwell, A.J.

Boreal wetlands play an important role in global carbon balance. However, their ecosystem function is threatened by direct anthropogenic disturbance and climate change. Oil sands surface mining in the boreal regions of Western Canada denudes tracts of land of organic materials, leaves large areas...

2012-01-01

Kur, Nhial Tiitmamer, Hvenegaard, Glen T.

For the whale-watching industry to be managed according to ecotourism principles, it should focus on nature-based attractions, provide environmental education, and promote environmental, economic, and social sustainability. Using 62 whale-watching brochures from 1998, 2005, and 2010, the study...

1997

Samson, J. C., Rankin, Robert, Voronkov, I., Tikhonchuk, V. T.

The effect of the ponderomotive force (PF) on the temporal evolution of shear Alfven field line resonances (FLRs) is considered for a magnetic dipole geometry appropriate to the Earth's magnetosphere. We derive a set of equations which describes the coupling of shear Alfven and slow mode waves...

2018-01-01

Windsor Reid, Pamela J., Matveev, Eugueni, McClymont, Alexandra, Posfai, Dora, Hill, April L., Leys, Sally P.

Background: The Wnt signaling pathway is uniquely metazoan and used in many processes during development, including the formation of polarity and body axes. In sponges, one of the earliest diverging animal groups, Wnt pathway genes have diverse expression patterns in different groups including...

2021-04-29

Popowich, Sam

Recent controversies in Canadian librarianship—the Toronto Public Library room rental to a "gender-critical feminist" group and the institution of “airport-style” security at the Winnipeg Public Library—have exposed divisions within the profession. This article attempts to untangle the...

2011

Peng, Fred Y., Weselake, Randall J.

Background In Arabidopsis, a large number of genes involved in the accumulation of seed storage reserves during seed development have been characterized, but the relationship of gene expression and regulation underlying this physiological process remains poorly understood. A more holistic view of...

2011

Els, C., Ratajewicz, S.E., Asirifi, M.A., Wilson, D.M.

Elder abuse is a global issue, with an estimated 4–10% of older persons in Canada abused each year. Although Canadian legislation has been created to prevent and punish the abuse of older persons living in nursing homes and other care facilities, community-dwelling older persons are at greater...