Government of Canada

About: Government of Canada is a government organization based out in Ottawa, Ontario, Canada. It is known for research contribution in the topics: Monetary policy & Debt. The organization has 796 authors who have published 886 publications receiving 21366 citations. The organization is also known as: federal government of Canada & Her Majesty's Government.

Comparison of the uptake and bioconcentration of fluridone and terbutryn by rainbow trout andChironomus tentans in sediment and water systems

Abstract: The rates of uptake and clearance of the aquatic herbicides terbutryn (14C) (2-t-butylamino4-ethylamino-6-methylthio-s-triazine) and (14C) fluridone (1-methyl-3-phenyl-5-(3-trifluoromethylphenyl)-4-(1H)-pyridinone) from water by rainbow trout andChironomus tentans (4th Instar) larvae were determined in static systems. Uptake rates for both herbicides were much lower than those for more hydrophobic compounds tested under similar conditions. Bioconcentration factors (BCFs) for fish of 91 and 312 were estimated for fluridone and terbutryn, respectively, by use of a pharmacokinetic model. Uptake and clearance of fluridone and terbutryn by chironomid larvae were more rapid than for rainbow trout. BCFs for chironomid larvae were estimated to be 128 for fluridone and 48 for terbutryn. Liver, intestine, and pyloric caeca of adult rainbow trout accumulated the highest residues of (14C)-fluridone and -terbutryn. Most of the radioactivity was found to be in the form of fluridone or 4-hydroxyfluridone (1-methyl-3-(4-hydroxyphenyl)-5-(3-trifluoromethyl phenyl)-4(1H)-pyridinone) while terbutryn and de-ethylated terbutryn (2-amino-4-(t-butylamino)-6-(methylthio)-s-triazine) were the major products in tissues of fish exposed to terbutryn. Accumulation of (14C)-fluridone and -terbutryn by chironomid larvae was studied in sediment spiked with 0.5 and 0.05 μg/g of each herbicide. Larvae in contact with sediment accumulated levels of radioactivity of both herbicides that were similar to the levels in larvae held in a screened cup above the sediment.

FET photodetectors: A combined study using optical and electron-beam stimulation

Abstract: The photosensitivity of GaAs FET's has been studied using both optical and electron-beam (e-beam) stimulation at various signal frequencies up to 1.3 GHz. The results indicate that, at high frequencies, the photoconductive mechanism which usually gives a small current gain is the dominant process, whereas at low frequencies photovoltaic mechanisms, which lead to "phototransistor" action are responsible for the observed high photosensitivity and current gain in the device.

Government On-Line in the Federal Government of Canada: the Organizational Issues:

Abstract: In this article, the authors analyze the Government On-line (GOL) initiative launched by the federal government of Canada in the winter 2000. The primary objective of GOL is to allow Canadians and non-Canadians to access public information and deal with the federal government via a single Web portal. The authors argue that GOL is not a simple technological change and that its designers will have to deal with many organizational issues and challenges in order for the project to succeed. The most important issues are: integration of services difficulties, necessary structural changes, insuring performance and accountability, organizational identity issues, security and human resources skills.

ICT use, innovation, and productivity : evidence from Sub-Saharan Africa

Abstract: This paper examines empirically the links between adoption of information and communications technology (ICT), defined as usage by firms, innovation, and productivity using firm-level data for a sample of six Sub-Saharan African countries: the Democratic Republic of Congo (DRC), Ghana, Kenya, Tanzania, Uganda, and Zambia. Although adoption of information and communications technology in these countries is still lagging behind OECD countries, there is significant heterogeneity on adoption rates across the countries. Kenya has the largest adoption rate of computer, software, and Internet usage. The Democratic Republic of Congo and Tanzania experience lower adoption rates. The degree of internationalization of the firm, use of technology, and extent of competition are important factors explaining firm-level use of ICT. The results of the estimates suggest that ICT use is an important and robust enabler of product, process, and organization innovation across all six countries. However, the final impact on productivity depends on the degree of novelty of the innovation introduced by the firm.