title: Exploring different 'perspectives' in secondary geography: Professional development options

authors: Chalmers, Lex

subjects: education policy

abstract: Significant changes have occurred in the worlds of geography since 1973, and a substantial literature has emerged about these changes and their effects on the 'divide' between secondary and tertiary geographers. We suggest that while the divide has not had much effect on the content taught in secondary geography in New Zealand and Britain, exposure to a range of perspectives on this content is a neglected area of professional development. Post-Fordism and deep ecology are described as perspectives that are not widely used in delivering secondary geography content. We argue firstly that effective use of different perspectives needs to be based on professional, personal and social change, and secondly that the Internet is a powerful tool in the engineering of such change.

text: Exploring different 'perspectives' in secondary geography: Professional development options Significant changes have occurred in the worlds of geography since 1973, and a substantial literature has emerged about these changes and their effects on the 'divide' between secondary and tertiary geographers. We suggest that while the divide has not had much effect on the content taught in secondary geography in New Zealand and Britain, exposure to a range of perspectives on this content is a neglected area of professional development. Post-Fordism and deep ecology are described as perspectives that are not widely used in delivering secondary geography content. We argue firstly that effective use of different perspectives needs to be based on professional, personal and social change, and secondly that the Internet is a powerful tool in the engineering of such change.

year: 2002

title: Virtual numbers for virtual machines?

authors: Tan, Alan Y.S.

subjects: cloud computing

abstract: Knowing the number of virtual machines (VMs) that a cloud physical hardware can (further) support is critical as it has implications on provisioning and hardware procurement. However, current methods for estimating the maximum number of VMs possible on a given hardware is usually the ratio of the specifications of a VM to the underlying cloud hardware’s specifications. Such naive and linear estimation methods mostly yield impractical limits as to how many VMs the hardware can actually support. It was found that if we base on the naive division method, user experience on VMs at those limits would be severely degraded. In this paper, we demonstrate through experimental results, the significant gap between the limits derived using the estimation method mentioned above and the actual situation. We believe for a more practicable estimation of the limits of the underlying infrastructure,

text: Virtual numbers for virtual machines? Knowing the number of virtual machines (VMs) that a cloud physical hardware can (further) support is critical as it has implications on provisioning and hardware procurement. However, current methods for estimating the maximum number of VMs possible on a given hardware is usually the ratio of the specifications of a VM to the underlying cloud hardware’s specifications. Such naive and linear estimation methods mostly yield impractical limits as to how many VMs the hardware can actually support. It was found that if we base on the naive division method, user experience on VMs at those limits would be severely degraded. In this paper, we demonstrate through experimental results, the significant gap between the limits derived using the estimation method mentioned above and the actual situation. We believe for a more practicable estimation of the limits of the underlying infrastructure,

year: 2014

title: Waitangi Soda Springs alum dosing – bioavailability of aluminium 2013

authors: Ling, Nicholas

abstract: Continuous alum dosing of the Waitangi Soda Springs at Lake Rotoehu commenced in 2010 to reduce inflows of dissolved reactive phosphorus to Lake Rotoehu. Analyses of bioaccumulation in the tissues of kōura and goldfish from Lake Rotoehu were undertaken on animals collected in September 2013 to determine the bioavailability and bioaccumulation of aluminium. Comparative analyses were undertaken on kōura and goldfish collected from Lakes Rotorua and Rotoiti. Lake Rotoehu kōura and goldfish showed slightly elevated aluminium concentrations in the gills indicating enhanced exposure to aluminium but little evidence for significant bioaccumulation in tissues.

text: Waitangi Soda Springs alum dosing – bioavailability of aluminium 2013 Continuous alum dosing of the Waitangi Soda Springs at Lake Rotoehu commenced in 2010 to reduce inflows of dissolved reactive phosphorus to Lake Rotoehu. Analyses of bioaccumulation in the tissues of kōura and goldfish from Lake Rotoehu were undertaken on animals collected in September 2013 to determine the bioavailability and bioaccumulation of aluminium. Comparative analyses were undertaken on kōura and goldfish collected from Lakes Rotorua and Rotoiti. Lake Rotoehu kōura and goldfish showed slightly elevated aluminium concentrations in the gills indicating enhanced exposure to aluminium but little evidence for significant bioaccumulation in tissues.

year: 2015