The growth of develop-for-import projects

This article examines develop-for-import projects financed by development loans and mixed credits supplied by export-import banks and other financial institutions of the central governments of France, Japan and the Federal Republic of Germany. The projects discussed are those producing bauxite, alumina, aluminium, chromium, copper, iron, manganese, molybdenum, nickel and tungsten, in developing market economies, Australia and Canada. The article estimates the volume of these metals committed to France, Japan and FRG to pay for loans and credits, examines the types of financial arrangement involved in develop-for-import projects, and considers the compatibility of these arrangements with the multilateral liberalized world trading system developed by the General Ageement on Tariffs and Trade (GATT) over the past 40 years. To the extent that these arrangements do not fully reflect changes in international market forces, world trade in metals will tend to be distorted and discriminatory.     

Canadian applications in resources analysis

Resource analysis is defined for this article as the process of integrating geological, technological, economic and other information to identify possible options and constraints in resource-based economic systems. The authors consider as examples two cases. In the first, energy resource options are considered in assessing available technological paths towards the specific target of providing energy for vehicle transport. In the second case, factors affecting the general use of Canadian copper resources are considered in an attempt to identify those that may provide limits to the exploitation of the resource.     

RDX loss in a surface soil under saturated and well drained conditions

On military training ranges, low-order, incomplete detonations deposit RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine) into surface soils. In this study, we evaluated RDX biodegradation in surface soils obtained from a military training range in Alaska. Two factors were compared: (i) soil water potential during the incubations; and (ii) the use of acetonitrile (ACN) as an RDX carrier to spike samples. Organic solvents have been used in laboratory studies to dissolve slightly water-soluble contaminants before addition to soil. We added ACN to obtain final soil ACN concentrations of 0 mg kg(-1) (0%), 1000 mg kg(-1) (0.1%) and 10 000 mg kg(-1) (1%). We then compared RDX attenuation in the soil under saturated and unsaturated conditions. RDX fell below the limit of detection within 3 wk of study initiation under the saturated condition. A maximum degradation rate of 0.15 mg RDX L(-1) d(-1) was measured. Under the unsaturated condition, 42% of the original RDX was still present at study termination (5 wk). The addition of acetonitrile at 0.1 or 1.0% had no affect on RDX loss in the saturated soil. In the unsaturated soil, however, ACN at 1.0% inhibited RDX loss by as much as 25%. These findings indicate that soil water potential and carrier solvent concentrations can impact the rate and extent to which RDX is attenuated in a surface soil.     

Phylogeography, historical demography, and the role of post-settlement ecology in two Hawaiian damselfish species

Coral reef fish generally have relatively sedentary juvenile and adult phases and a presumed highly dispersive pelagic larval phase, yet previous studies that have tried to relate pelagic larval duration (PLD) to population structure have given inconsistent results. In the present study, the population structures of two damselfishes, Stegastes fasciolatus and Dascyllus albisella, were examined using mitochondrial control region sequences. The two species have similar PLDs (∼25 and 27 days respectively), but consistently differ in their settlement preferences, habitat, and densities in populations throughout the Hawaiian Archipelago, from Hawaii north to Kure Atoll, and south to Johnston Atoll. Information on habitat preferences and population densities were collected between September 2000 and October 2002, and tissue samples for the genetic studies were collected between January and April 2004. Based on the differences in habitat and abundance of the two species, the expectation was that S. fasciolatus would have high genetic variability but little population structure compared to D. albisella, and this was largely confirmed. Stegastes fasciolatus had little population structure in most of the Hawaiian Islands, and D. albisella showed evidence of strong population structure throughout its range. An exception to this pattern was the large difference between the Kure Atoll population of S. fasciolatus and all others. These results suggest that the interaction of several biological factors (e.g. species-specific spawning habitat and season) with environmental factors (e.g. seasonal wind and current patterns) may have more influence on population structure than single life history characteristics, such as the PLD.     

Creating a “values” chain for sustainable development in developing nations: where Maslow meets Porter

This paper serves to establish an appropriate framework for prioritizing policy related to sustainable development by combining elements of Maslow’s hierarchy of needs theory with Porter’s value chain theory. An appropriate balance of social sustainability, economic sustainability, and environmental sustainability is defined so that policy makers may be provided some direction in regard to appropriate and socially just resource priorities. The model that forms the basis for this framework is then tested through hierarchal regression analysis using data from 45 developing countries. Using these results, the values chain framework has been refined to consider that self-actualization and sustainable development are one and the same and that the satisfaction of society’s physiological needs through the prioritization of policies related to environmental sustainability is the principle motivator for moving on to the attainment of higher-order needs such as increased levels of sustainable development.     

Emission Standards for Particulates

Promulgation of standards of performance under Section 111 and national emission standards for hazardous pollutants under Section 112 of the Clean Air Act is the responsibility of the Emission Standards and Engineering Division of EPA. The problems encountered and the bases used are examined.     

The use of electrolyte redox potential to monitor the Ce(IV)/Ce(III) couple

Mathematical modelling of the oxidation reduction redox potential (ORP) of an electrolyte has been carried out for a batch system comprising an electrochemical reactor and an electrolyte circuit containing a redox couple. The ORP can be useful to monitor the environmental impact of chemical species in solution that represent a risk to the environment. Considerations of four fundamental equations, namely, the Nernst equation, a mass balance, Faraday's laws of electrolysis and a first order kinetic equation, leads to an expression for the electrolyte redox potential as a function of the batch time, the electrical charge and the redox concentration. Such an expression facilitates graphical plots which can be used to estimate kinetic parameters, current efficiency and the relative redox concentration. The Ce(IV)/Ce(III) system has been chosen as a model reaction for electrolyte redox potential measurement in a batch recycle system consisting of a pumped flow through a divided FM01-LC parallel-plate electrochemical reactor (64cm(2) projected electrode area) and a well mixed tank (3600cm(3)). The differences between experimental and model predictions are discussed.