1000 resultados para ambient debate


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"This book offers a critical reassessment of the "Asian values" debate, which dominated the human rights discourse in the late 1990s, and a reappraisal of the human rights situation in Asia since then. In this book Asian and non-Asian scholars contextualize the "Asian values" debate and examine in what ways the issues raised then continue to trouble Asian societies. Human rights are seen both in the context of political developments in individual Asian countries as well as in relation to global issues such as the Global War on Terror. The book challenges the reader to critically examine human rights rhetoric and practice both in Asia and globally."--BOOK JACKET.

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There has never been a better time for an insightful look at international corporate governance. This rather timely, up-to-date and authorative is based on the latest regional and international research, with contributions coming from a hand-picked team of experts. This exciting edited text explores and analyses the issues, trends and challenges for corporate governance in the future as well as today.  

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The intensity of sexual selection is influenced by environmental conditions because these conditions influence signal propagation and the risks of the signal being exploited by predators and parasites. We explore the possibility that spatial or temporal heterogeneity in environmental signalling conditions (in this case light spectrum) may induce fluctuating sexual selection on male behaviour and ornamentation in guppies. We used shade cloth and filters to experimentally manipulate light spectrum, mimicking conditions found naturally: early morning/late afternoon light (SC treatment), midday forest shade (F89 filter treatment) and midday woodland shade (F55 filter treatment). Females were more responsive to male courtship and males were less likely to attempt sneak copulations under F55 light than the other two treatments. By contrast, male display rate was not influenced by treatment. Females tended to prefer the same males under SC and F55 light, but attractiveness in these treatments was unrelated to attractiveness under F89 light. There were similarities among treatments in the traits that females preferred: females preferred males with larger areas of orange in all three treatments. There were, however, also some differences, including preference for larger males under F89 light and for smaller males under the other treatments. Overall, the influence of ambient light spectrum on the relative importance of mate choice and male sneak copulation may have important implications for the mode and strength of sexual selection in different environments. The findings on attractiveness and preference functions, however, suggest that light spectrum only weakly affects the direction of sexual selection by female choice.

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This paper argues for greater dialogue on public health ethics. There has been little discussion in Australia about the significant ethical dilemmas in this field, and there is no agreed framework for analysing and responding to these challenges. We highlight concerns about the suitability of biomedical principles-based ethics for public health, and encourage public health professionals in this country to reflect on ethical challenges in public health research. A focus on research ethics concerns will deliver concrete examples demonstrating the need for a public health ethics frame work. Recommendations are offered for how public health ethics promotion may occur locally.

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The state aid debate is one of the longest running and most intractable issues in the public policy sphere in Australia. Recent decisions by the Commonwealth government to increase funding to private schools has reignited the debate. But the traditional defences of public education have proved inadequate to the task of hanging the course of current neo-liberal education policy trajectories. As the percentage of students attending private schools continues to grow, and as the spectre of a residualised public education system looms larger, so the need to rethink Australian public education becomes a more urgent project. In this paper we analyse what is happening and why; identify a range of concerns from the standpoint of a social democratic educational agenda; and theorise some possible strategies which might be pursued by those committed to a vibrant public schooling
system in Australia.

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New Product Development (NPD) innovation is a critical activity in the current economic environment. In order to manage their NPD innovation projects, firms use Management Controls Systems (MCS). However, the effect that these systems have on NPD innovation is not clear. One stream of research suggests that MCS help NPD innovation while another stream suggests MCS hinder NPD innovation. Past research has shown that the role and style of MCS used may offer explanations on why MCS can both help and hinder NPD innovation. This paper adds another explanation by examining the relationship between three models (divisional, activity/decision and conversion/response) of a commonly used MCS, known as the Stage-Gate Process1 in the NPD innovation literature, and three types of NPD innovation projects (incremental, semi-radical and radical). The insights from an ethnomethodology informed field study are used to understand how and why the firms may use a different MCS (Stage-Gate Process models) for different NPD innovation project types.

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Though constructed with different purposes, the theory of constraints and activity based costing systems pose a choice problem in respect of product mix decisions. We believe that the existing explanation of short versus long run criterion to explain firms' choice between these two systems is incomplete and offer an alternate explanation based on asset specificity. We argue that the extent to which specialized resources are deployed to make products in a mix determines the choice. We present a 2*2 matrix stating that when asset specificity is high, a firm is likely to choose ABC instead of TOC since ABC makes a large portion of costs visible to enable control. However, the choice is likely to be a TOC-ABC combination when the manufacture of asset specific products is also constrained by bottlenecks.

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A number of novel organic ionic compounds based on the pyrrolidinium cation are described which have been found to be ion conductors in their solid states around room temperature. The properties of the compounds are consistent with their exhibiting plastic crystal phases. In order to understand some of the molecular origins of the plastic crystal behaviour and the ion conductivity that it promotes, a number of related compounds based on the imidazolium and ammonium cations are also described which have structural elements in common with the pyrrolidinium cation, but which do not show the plastic behaviour. It is found therefore that the nature of the cation is quite critical to the development of this behaviour. The alkyl methyl pyrrolidinium cation is found to produce plastic crystal phases when the alkyl chains are short, thereby preserving the ability of the cation to rotate with minimal steric hindrance. The ammonium and imidazolium cations of comparable size and structure are less able to produce these plastic phases, in many cases because the low temperature phase proceeds to melt rather than forming a stable rotator phase.

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N,N,N,N-Tetramethylammonium dicyanamide (Me4NDCA) has been examined via differential scanning calorimetry (DSC), thermogravimetric analysis, conductivity, single crystal X-ray diffraction and 1H nuclear magnetic resonance (NMR) analyses, and was found to be highly conductive in the solid state (σ =10−3 S cm−2 at 420 K) and to also exhibit unusual plastic crystal behaviour. To investigate the correlation between such behaviour and the occurrence of molecular rotations in the crystal, 1H NMR second moment measurements are compared with calculated values predicted from the crystal structure. While DSC analysis indicates a number of solid–solid transitions at ambient temperatures, subsequent 1H NMR analysis of the Me4N+ cation shows that a variety of rotational motions become active at low (<240 K) temperatures, and that such transitions in rotational states occur over a range of temperatures rather than in a sharp transition. Conductivity analysis reveals that between 320 K and 420 K the conductivity increases by more than six orders of magnitude in the solid state, in line with the transition of the Me4N+ cation to a diffusive state, and that other phase transitions observed in this temperature range have no marked effect on the conductivity. Conduction in this solid state is therefore envisaged to involve a vacancy-diffusion model, involving Me4N+ cation vacancies.

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The synthesis of 16 tetraalkyl ammonium bis(trifluoromethane sulfonyl) imide salts, (CnH2n+1)4 +N -N (SO2CF3)2 (n = 1, 2, 3, 4),  (C2H5)2(i-C3H7)2 +N -N(SO2CF3)2, (C2H5)(CH3)(i-C3H7)2+N-N(SO2CF3)2, (n-C7H15)(C2H5)i-C3H7)2+N-N(SO2CF3)2 and (CnH2n+1)(CmH2m+1)3+N-N(SO2CF3)2 (n = 6,7,8; m = 1, 2, 4) are reported in this paper. Trends in properties of these salts are discussed. The symmetrical tetraalkyl ammonium salts with the bis(trifluoromethyl sulfonyl) imide anion exhibited a lower melting point than that of corresponding ammonium halides. The salts with low symmetry ammonium cations were found to be of generally lower melting point, and many were stable liquids at room temperature. Several of these did not crystallize during cooling below room temperature and exhibited glass transition temperatures in the region of −60 °C∼−80 °C. A comparison of properties between the ammonium imide salts and corresponding trifluoromethane sulfonates is also presented.