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2003

Schopflocher, D., Voaklander, D. C., Rowe, B. H., May, L. A., Saunders, L. D., Svenson, L. W., Dryden, D. M., Yiannakoulias, N.

Objectives: To describe the incidence and pattern of traumatic spinal cord injury and cauda equina injury (SCI) in a geographically defined region of Canada. Methods: The study period was April 1, 1997 to March 31, 2000. Data were gathered from three provincial sources: administrative data from...

2006

Norris, C.M., Graham, M.M., Galbraith, P.D., Knudtson, M.L., Ghali, W.A.

Aims: To describe health status outcomes at 4 years for a cohort of elderly patients with cardiac disease. Methods and results: Using the Alberta Provincial Project for Outcomes Assessment in Coronary Heart Disease, an outcomes initiative capturing all patients undergoing cardiac catheterization...

1979

Price, M. A., Berg, R. T., Jones, S. D. M.

The effect of winter weight loss in Hereford cows on calf birth weight and performance to weaning was examined over a period of 4 yr. The average winter weight loss of cows (60 + 36.2 kg mean += SD) over the period of this study had a significant effect (P < 0.001) on calf birth weight, but no...

2000

He, F., Alfaro, R.I.

The survival time of a white spruce tree (Picea glauca (Moench) Voss) with respect to the attack by the white pine weevil (Pissodes strobi (Peck)) was defined as the number of years until an attack occurred. In this context, resistant trees are those capable of delaying attacks rather than...

1981

Price, M. A., Berg, R. T., Jones, S. D. M.

A trial is reported comparing the accumulation of lipid in rib cuts from 12 bull and 12 heifer carcasses from two breed types: Hereford (HE) and Dairy Synthetic (DY). Serial slaughter was carried out from weaning (163 ± 15.1 (SD) days) to approximately 16 mo of age. The left side of each carcass...

2013

Martin Hermansson, Frederik Doyon, Per Angelstam, Marine Elbakidze, Kjell Andersson, Jonas Jacobsson, Glen W. Armstrong, Robert Axelsson, Yurij Pautov

This paper analyzes how sustained yield (SY) forestry is defined and implemented in Sweden and Russia, two countries with different forest-industrial regimes. We first compare definitions of SY forestry in national legislation and policies. Then we study forest management planning in two large...

2005

Fortin, D., Beyer, H. L., Smith, D. W., Boyce, M. S., Mao, J. S., Duchesne, T.

A trophic cascade recently has been reported among wolves, elk, and aspen on the northern winter range of Yellowstone National Park, Wyoming, USA, but the mechanisms of indirect interactions within this food chain have yet to be established. We investigated whether the observed trophic cascade...

2001

Hannon, S. J., Norton, M. R., Tittler, R.

Abstract: Retention of residual trees in \"cutblocks,\" logged blocks of forest, has been proposed as a method to conserve songbirds in landscapes fragmented by clear-cut logging. We examined songbird communities in the boreal mixed-wood forest of Alberta, Canada, to investigate the effect on...

2002

Hamann, A., Namkoong, G., Koshy, M.P.

Adjustment for micro-environmental heterogeneity in inadequately blocked field experiments is desirable to improve estimates of genetic parameters and to maximize genetic gains from selection. In three forestry field trials of red alder (Alnus rubra Bong.) we removed spatially autocorrelated...

2003

Day, Andy E., Andersson, Leif, Plastow, Graham S., Pielberg, Gerli

Gene duplications are common in the vertebrate genome, and duplicated loci often show a variation in copy number that may have important phenotypic effects. Here we describe a powerful method for quantification of duplicated copies based on pyrosequencing. A reliable quantification was obtained...