title: Variance anisotropy in compressible 3-D MHD

authors: Oughton, Sean

abstract: All Rights Reserved.We employ spectral method numerical simulations to examine the dynamical development of anisotropy of the variance, or polarization, of the magnetic and velocity field in compressible magnetohydrodynamic (MHD) turbulence. Both variance anisotropy and spectral anisotropy emerge under influence of a large-scale mean magnetic field B0; these are distinct effects, although sometimes related. Here we examine the appearance of variance parallel to B0, when starting from a highly anisotropic state. The discussion is based on a turbulence theoretic approach rather than a wave perspective. We find that parallel variance emerges over several characteristic nonlinear times, often attaining a quasi-steady level that depends on plasma beta. Consistency with solar wind observations seems to occur when the initial state is dominated by quasi-two-dimensional fluctuations.

text: Variance anisotropy in compressible 3-D MHD All Rights Reserved.We employ spectral method numerical simulations to examine the dynamical development of anisotropy of the variance, or polarization, of the magnetic and velocity field in compressible magnetohydrodynamic (MHD) turbulence. Both variance anisotropy and spectral anisotropy emerge under influence of a large-scale mean magnetic field B0; these are distinct effects, although sometimes related. Here we examine the appearance of variance parallel to B0, when starting from a highly anisotropic state. The discussion is based on a turbulence theoretic approach rather than a wave perspective. We find that parallel variance emerges over several characteristic nonlinear times, often attaining a quasi-steady level that depends on plasma beta. Consistency with solar wind observations seems to occur when the initial state is dominated by quasi-two-dimensional fluctuations.

year: 2016

title: The value relevance of corporate responsibility reporting: South African evidence

authors: de Klerk, Marna

subjects: corporate responsibility reporting (CRR)

abstract: Purpose – Corporate responsibility reporting (CRR) deals with companies’ ethical, economic, environmental, and social impacts. The purpose of this paper is to contribute to the debate on whether CRR is associated with the information set that shareholders use to value a company's equity and therefore, the value-relevance thereof for investment decision making.
Design/methodology/approach – The paper uses a modified Ohlson model developed by Hassel, Nilsson and Nyquist to examine the role of CRR in providing information to shareholders that may affect their valuation of a company. The paper uses two data sets, namely a KPMG dataset on the CRR of the top 100 South African companies and the McGregor BFA database for financial data.
Findings – It was found that the share prices of companies with higher levels of CRR are likely to be higher.
Originality/value – Prior research in which different valuation methods and different assessment periods were used was conducted in different developed countries. Some studies show value relevance, while others do not. South Africa is a developing country and by bringing a developing country to the literature the authors’ aim is to contribute to the current debate on the value relevance of CRR.

text: The value relevance of corporate responsibility reporting: South African evidence Purpose – Corporate responsibility reporting (CRR) deals with companies’ ethical, economic, environmental, and social impacts. The purpose of this paper is to contribute to the debate on whether CRR is associated with the information set that shareholders use to value a company's equity and therefore, the value-relevance thereof for investment decision making.
Design/methodology/approach – The paper uses a modified Ohlson model developed by Hassel, Nilsson and Nyquist to examine the role of CRR in providing information to shareholders that may affect their valuation of a company. The paper uses two data sets, namely a KPMG dataset on the CRR of the top 100 South African companies and the McGregor BFA database for financial data.
Findings – It was found that the share prices of companies with higher levels of CRR are likely to be higher.
Originality/value – Prior research in which different valuation methods and different assessment periods were used was conducted in different developed countries. Some studies show value relevance, while others do not. South Africa is a developing country and by bringing a developing country to the literature the authors’ aim is to contribute to the current debate on the value relevance of CRR.

year: 2012

title: Taku Manawa: Patterns of alternative health care practices in Aotearoa/New Zealand

authors: Whangapirita, Laura

subjects: Maori

abstract: Currently, there are an increased
number of Māori people seeking alternative
solutions to their health needs. The use of
Rongoa Māori is not just an alternative
health practice, but also a traditional one,
making the practice far more significant
than one that simply meets health needs.

text: Taku Manawa: Patterns of alternative health care practices in Aotearoa/New Zealand Currently, there are an increased
number of Māori people seeking alternative
solutions to their health needs. The use of
Rongoa Māori is not just an alternative
health practice, but also a traditional one,
making the practice far more significant
than one that simply meets health needs.

year: 2003