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Papers by Antonio Chan

Research paper thumbnail of A study of environmental web disclosures and financial performance of mainland Chinese dually listed companies | NOVA. The University of Newcastle's Digital Repository

China is one of the fastest growing economies in the world, yet studies have shown that it has a ... more China is one of the fastest growing economies in the world, yet studies have shown that it has a poor corporate governance structure. Researchers have also discovered various problems with corporate governance, corporate social responsibility and corporate environmental responsibility in Mainland Chinese firms. Unlike China, large corporations in Western countries do not generally buy products from firms that have poor environmental practices. Firms use environmental disclosure statements in their annual reports to secure legitimacy because stakeholders admire environmental disclosure more than other socially responsible activity. In addition, firms use corporate websites to build a reputation among stakeholders that is beyond the requirements of corporate disclosure. Many studies in Western developed countries have documented a positive association between a firm's level of environmental disclosure and its financial performance. There are few studies in developing countries, especially in Mainland China. This study therefore explored the relationship between discretionary environmental disclosure and the financial performance of Mainland Chinese firms. By analysing relevant literature and theoretical frameworks, the study adopted a multidimensional focus on environmental disclosures and legitimacy in order to answer a number of research questions.

Research paper thumbnail of Mast cells in the rat liver are phenotypically heterogeneous and exhibit features of immaturity

Immunology and Cell Biology, 2001

Gastrointestinal hypersensitivity to food allergens is a significant but relatively poorly unders... more Gastrointestinal hypersensitivity to food allergens is a significant but relatively poorly understood allergic disease. Recent evidence from a rat model of IgE-mediated gastrointestinal hypersensitivity has suggested that hepatic mast cells (HMC) may play an important role in such reactions. The present study was undertaken to better define their phenotype. Livers from Australian albino Wistar (AaW), Brown Norway (BN) and PVG/c rats were examined using traditional histological techniques and reverse transcription-polymerase chain reaction (RT-PCR). Hepatic mast cells were overwhelmingly Alcian blue positive, sensitive to formalin fixation and predominantly rat mast cell protease (RMCP) 1 + /2 -(AaW 57%; BN 53%). Such a phenotype has previously been associated with an immature mast cell phenotype. A significant number of HMC also stained RMCP 1 -/2 + (AaW 15%; BN 19%) or were RMCP 1 + /2 + (AaW 24%; BN 26%). In contrast to previous reports, RT-PCR showed that the liver expressed mRNA of other mast cell proteases, including the chymase RMCP 5 as well as two tryptases, RMCP 6 and RMCP 7. These results suggest that HMC are a heterogeneous population of mast cells with some characteristics previously associated with immature cells.

Research paper thumbnail of A study of environmental web disclosures and financial performance of mainland Chinese dually listed companies | NOVA. The University of Newcastle's Digital Repository

China is one of the fastest growing economies in the world, yet studies have shown that it has a ... more China is one of the fastest growing economies in the world, yet studies have shown that it has a poor corporate governance structure. Researchers have also discovered various problems with corporate governance, corporate social responsibility and corporate environmental responsibility in Mainland Chinese firms. Unlike China, large corporations in Western countries do not generally buy products from firms that have poor environmental practices. Firms use environmental disclosure statements in their annual reports to secure legitimacy because stakeholders admire environmental disclosure more than other socially responsible activity. In addition, firms use corporate websites to build a reputation among stakeholders that is beyond the requirements of corporate disclosure. Many studies in Western developed countries have documented a positive association between a firm's level of environmental disclosure and its financial performance. There are few studies in developing countries, especially in Mainland China. This study therefore explored the relationship between discretionary environmental disclosure and the financial performance of Mainland Chinese firms. By analysing relevant literature and theoretical frameworks, the study adopted a multidimensional focus on environmental disclosures and legitimacy in order to answer a number of research questions.

Research paper thumbnail of Mast cells in the rat liver are phenotypically heterogeneous and exhibit features of immaturity

Immunology and Cell Biology, 2001

Gastrointestinal hypersensitivity to food allergens is a significant but relatively poorly unders... more Gastrointestinal hypersensitivity to food allergens is a significant but relatively poorly understood allergic disease. Recent evidence from a rat model of IgE-mediated gastrointestinal hypersensitivity has suggested that hepatic mast cells (HMC) may play an important role in such reactions. The present study was undertaken to better define their phenotype. Livers from Australian albino Wistar (AaW), Brown Norway (BN) and PVG/c rats were examined using traditional histological techniques and reverse transcription-polymerase chain reaction (RT-PCR). Hepatic mast cells were overwhelmingly Alcian blue positive, sensitive to formalin fixation and predominantly rat mast cell protease (RMCP) 1 + /2 -(AaW 57%; BN 53%). Such a phenotype has previously been associated with an immature mast cell phenotype. A significant number of HMC also stained RMCP 1 -/2 + (AaW 15%; BN 19%) or were RMCP 1 + /2 + (AaW 24%; BN 26%). In contrast to previous reports, RT-PCR showed that the liver expressed mRNA of other mast cell proteases, including the chymase RMCP 5 as well as two tryptases, RMCP 6 and RMCP 7. These results suggest that HMC are a heterogeneous population of mast cells with some characteristics previously associated with immature cells.

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