Ryerson University

About: Ryerson University is a education organization based out in Toronto, Ontario, Canada. It is known for research contribution in the topics: Population & Poison control. The organization has 7671 authors who have published 20164 publications receiving 394976 citations. The organization is also known as: Ryerson Polytechnical Institute & Ryerson Institute of Technology.

Acquisition Announcements and Stock Market Valuations of Acquiring Firms’ Rivals: A Test of the Growth Probability Hypothesis in China

Abstract: To examine the impact of acquisition announcements on the stock market returns of rivals of the acquiring firms, we propose a growth probability hypothesis: When an acquisition is announced, it signals the potential for future growth in the acquirer’s industry to the market, resulting in positive stock market reactions to rivals of the acquiring firms. We test the growth probability hypothesis with a longitudinal sample of Chinese domestic and cross-border acquisitions during 1993-2008. The results provide robust support for this hypothesis as a means to explain market reactions to rivals of acquiring firms. We also empirically test and negate alternative theoretical explanations advanced in prior literature to explain positive market reactions to rivals of the target firms.

Thermal Conductivity of Standard Sands. Part I. Dry-State Conditions

Abstract: A comprehensive thermal conductivity (λ) database of three dry standard sands (Ottawa C-109, Ottawa C-190, and Toyoura) was developed using a transient line heat source technique. The database contains λ data representing a variety of soil compactions and temperatures (T) ranging from 25 °C to 70 °C. The tested standard sands, due to their repeatable physical characteristics, can be used as reference materials for validation of thermal probes applied to similar dry granular materials. The measured data show an increasing trend of thermal conductivity at dryness (λdry) against T in spite of declining quartz λ with T. The air content (porosity) controls the λ of dry sands by acting as a very effective thermal insulator around solid soil particles. As a result, a diminutive increase of λdry with T is driven by increasing λ of air. The experimental λ data of dry sands were exceptionally well predicted by de Vries and Woodside–Messmer models, and also by a thermal conductance model, a product of λ of solids and the thermal conductance factor.

The Restructuring of Food Systems: Trends, Research, and Policy Issues

Abstract: This issue brings together a selection of articles based on presentations at two Conferences in 1997. The aim has been 1) to offer clearer and more understandable descriptions of the major trends and relationships that are involved in the structural transformations that are occurring in food systems at all levels; 2) to help develop better theoretical and conceptual tools to aid us in analyzing such restructurings and their dynamics; and 3) to clarify a number of practical issues facing those seeking to promote more sustainable and just food systems, especially at the local level. With only one exception, all the articles here focus on Western economies where food systems are highly commodified, globally integrated, corporate, and state structures have been restructured by a series of neo-liberal reforms in recent years. In pointing out the problems with these food systems, the articles also discuss various possibilities for structural reforms for more healthy, sustainable, just, and equitable food systems and societies.