Results

1 - 25 of 636
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Previous work has shown that it is possible to image whole uncoated chloroplasts using scanning tunneling microscopy (STM), provided this is done in solution using tunnelling currents below about 100 pA. More recent images include some which suggest that the STM is sensitive to dynamic processes occ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Prince Edward Island, Salmon Fishing Area 17, is part of the southern Gulf - Gaspé Designatable Unit which COSEWIC assessed as Special Concern in 2010. Atlantic salmon probably occupied about 71 PEI rivers at the time of European contact. Rivers containing salmon fell to 28 in 2000-2002 and to 22 i...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Several lines of evidence suggest that L-type Ca2+ channels (1,4-dihydropyridine receptors) are modulated by GTP-binding proteins. We have further examined this interaction by measuring the effect of 1,4-dihydropyridines on GTPase activity in brain membranes. Dihydropyridine agonists significantly i...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
5-Hydroxytryptamine (5-HT) releases a purine nucleotide, which is subsequently converted to adenosine, from primary afferent nerve terminals in vitro. This release may mediate spinal antinociception by 5-HT. In the present study, we have investigated whether release also occurs from the spinal cord ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
5-Hydroxytryptamine (serotonin, 5-HT) increased the release of endogenous adenosine from dorsal, but not ventral, spinal cord synaptosomes. This release was reduced by (i) the 5-HT receptor antagonist methysergide, (ii) removal of Ca2+ from the medium, (iii) inhibition of ecto-5'-nucleotidase a...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The recent detection of the invasive colonial tunicate Diplosoma listerianum in Havre- Aubert, Magdalen Islands (Quebec, Canada) in 2008, prompted the development of a molecular assay as a method to detect and monitor for the potential invasion of this species in Prince Edward Island. The aim of thi...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Climate change will affect those most vulnerable in the developing world, and humanitarian relief and development organizations will need to respond. Using a quantitative survey, the attitudes of World Vision staff towards climate change and its risks for children were examined. Results indicate...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
A description is given of an axenic laboratory method for rearing Choristoneura fumiferana larvae that is suitable for physiological studies. The rearing procedure is a modification of the method of D. G. Grisdale (1984), using a wheat-germ based synthetic diet. The axenic rearing method resulted in...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
We investigated the reproductive morphology of representative material corresponding to the type species of each of the described genera presently placed in synonymy under Gracilaria. From these observations and published studies of recognized genera, 10 species groups are identified in the Gracilar...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The establishment of basic leaf shape in three representative members of the genus Vitis (Vitis riparia Michx., cultivars Vivant and Concord) was studied using scanning electron microscopy. At maturity, the leaves of the above taxa have specific and recognizable features which makes it possible to d...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Leaf characters, such as angles between major veins, ratios of the length of leaf lobes, of leaf lobes and sinuses, and of petioles and leaf lobes, were measured on leaves of different sizes and compared against leaf blade length (an indirect measure of developmental time) to see if there were diffe...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Focuses on the discovery of a new species of alga of the section Contorta of the genus Batrachospermum from Nonoc Island in Surigao del Norte Province, Philippines. Resemblance of the species with B. iriomotense, B. tabagatenese and B. nechochoense; Description of the gonimoblast filaments; Componen...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Aim: Constraint-induced movement therapy (CIMT), which forces use of the impaired arm following unilateral stroke, promotes functional recovery in the clinic but animal models of CIMT have yielded mixed results. The aim of this study is to develop a refined endothelin-1 (ET-1) model of focal ischemi...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
This quantitative developmental study examines various parameters associated with the growth of leaves of Myriophyllum aquaticum (Vell.) Verdc. on different shoot systems from a single clonal plant to determine the dynamics of growth processes during the development of a normal, typical leaf. Early ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
A modified mathematical model based on the concept of generative centres is proposed to describe organogenesis in young leaf primordia of Murraya paniculata. Measurements of specific parameters on leaf primordia at different stages of development support the basic assumptions of the model. These ass...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Building on breakthroughs recently made at kraft mills, a survey of mechanical pulp and paper mill effluents was undertaken to gain insights concerning potential effects on fish reproduction. Effluents from seven Canadian mills were characterized chemically for conventional parameters such as bioche...