999 resultados para Wilderness areas


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Gilgul Theatre was founded in May 1991 by director Barrie Kosky and manager flighting designer Robert Lehrer, who aimed to establish 'Australia's first professional Jewish theatre company'.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Genotoxicity potential of soils taken from wastewater irrigation areas and bioremediation sites was assessed using the Vicia faba root tip micronucleus assay. Twenty five soils were tested, of which 8 were uncontaminated soils and taken as the control to examine the influence of soil properties; 6 soils were obtained from paddy rice fields with a history of long-term wastewater irrigation; 6 soils were obtained from bioremediation sites to examine effects of bioremediation; and 5 PAH-contaminated soils were used to examine methodological effects between direct soil exposure and exposure to aqueous soil extracts on micronuclei (MN) frequency () in the V. faba root tips. Results indicate that soil properties had no significant influences on MN frequencies (p > 0.05) when soil pH varied between 3.4 to 7.6 and organic carbon between 0.4% and 18.6%. The MN frequency measured in these control soils ranged from 1.6‰ to 5.8‰. MN frequencies in soils from wastewater irrigation areas showed 2- to 48-fold increase as compared with the control. Soils from bioremediation sites showed a mixed picture: MN frequencies in some soils decreased after bioremediation, possibly due to detoxification; whereas in other cases remediated soils induced higher MN frequencies, suggesting that genotoxic substances might be produced during bioremediation. Exposure to aqueous soil extracts gave a higher MN frequency than direct exposure in 3 soils. However, the opposite was observed in the other two soils, suggesting that both exposure routes should be tested in case of negative results from one route. Data obtained from this study indicate that the MN assay is a sensitive assay suitable for evaluating genotoxicity of soils.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The aim of the research was to gain a better understanding of the relationship between drinking water quality, householders' knowledge and maintenance practices of private water supplies and drinking water-related public health risk on farms. Samples of drinking water were taken from 100 farming households. The Colilert-18 method was used for the detection of total coliforms and Escherichia coli (E. coli) as indicators of water quality. Each household completed a questionnaire about their knowledge and practices relating to a safe water supply. Coliforms were present in 52 water samples and E. coli was present in 38. Seven households reported minor illnesses in the previous three months and two households reported gastroenteritis. Some tank maintenance occurred in 86 households, but tank maintenance activities varied considerably. Four of the households had published guidelines on water quality. None of the participating households had their drinking water tested regularly. There was no obvious relationship between drinking water quality, householder knowledge, maintenance practices and drinking water-related health risk on farms.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The word “wilderness” in America is generally identified with pristine places where humans are not among the primary influences on the land and its ecology. The American wilderness ethic creates a strict dichotomy between humans and nature. The Wilderness Preservation Act of 1964 defines wilderness as “an area where the earth and its community of life are untrammeled by man, where man himself is a visitor who does not remain” (wilderness.net). This statutory definition of wilderness is essentially the functional embodiment of the American wilderness ethic. Wilderness can also be interpreted in ways that incorporate humans as active players in the natural world. Land which is managed for human use but is uninhabited can be considered wilderness to some degree because “man himself is a visitor who does not remain.” Wilderness, especially in the Northeast, can be visualized based on different land use characteristics. Conservation in the Northeast requires a redefinition of wilderness in order to incorporate land that has been utilized by humans.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

http://digitalcommons.colby.edu/atlasofmaine2009/1022/thumbnail.jpg

Relevância:

20.00% 20.00%

Publicador:

Resumo:

http://digitalcommons.colby.edu/atlasofmaine2009/1018/thumbnail.jpg

Relevância:

20.00% 20.00%

Publicador:

Resumo:

http://digitalcommons.colby.edu/atlasofmaine2008/1012/thumbnail.jpg

Relevância:

20.00% 20.00%

Publicador:

Resumo:

http://digitalcommons.colby.edu/atlasofmaine2006/1011/thumbnail.jpg

Relevância:

20.00% 20.00%

Publicador:

Resumo:

http://digitalcommons.colby.edu/atlasofmaine2005/1014/thumbnail.jpg

Relevância:

20.00% 20.00%

Publicador:

Resumo:

http://digitalcommons.colby.edu/atlasofmaine2008/1010/thumbnail.jpg

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Wilderness is a unique environmental resource that provides a multitude of use and non-use benefits. The use and management of wilderness depend on the assessment of wilderness quality. Current wilderness assessment in Australia is based on two broad criteria, the remoteness and naturalness of the wilderness, determined using geographic information systems. This paper discusses a complementary assessment method using the Analytic Hierarchy Process (AHP). The AHP can be used to incorporate additional criteria, such as social and cultural criteria, to improve the quality of wilderness assessment. It provides a flexible and compatible method for large-scale wilderness assessments with multiple criteria. The weighting factors for the different criteria can be obtained from expert panels and focus groups.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The purpose of this survey investigation was to gain insight into the different home literacy practices of preschool children in some disadvantaged areas across the state of Victoria, Australia. Findings indicate that parents read to their children regularly from a young age, found libraries easy to access and use, and have children who enjoy books and paper and pencil activities. However, more than half of them found there was not enough information available to support them in their child's literacy development. It is argued here that such information should be made available as a matter of some urgency and be distributed through libraries.