一种新型环境友好污水处理工艺——蚯蚓生态滤池

蚯蚓生态滤池将蚯蚓创造性地引入到污水处理系统中,延长和扩展了微生物代谢链,强化了生态系统富集与扩散、合成与分解、拮抗与协同等多种自然调控作用,实现了污水污泥的同步高效处理。滤池出水可用作绿化和农田灌溉,蚓粪污泥含水率低,减量化稳定化效果显著,较好地解决了剩余污泥的处置问题。蚯蚓生态滤池工艺高效节能,具有鲜明的"生态平衡"和"环境友好"技术特色,符合可持续发展的理念,具有技术经济竞争优势,环境效益比较显著,具有良好的实际应用前景。     

An empirical investigation of firm public and private knowledge

Many studies examine firm private knowledge, but purport to be generalizable to the totality of firm knowledge, both public and private. This study demonstrates that public and private firm knowledge are empirically separable constructs that have significant and yet different influences on innovative outcomes. The example of product development effectiveness within this study shows that both public and private knowledge are significantly related to product development quality; however, public knowledge is negatively related to quality lapses while private knowledge is positively related to quality lapses. Copyright © 2002 John Wiley & Sons, Ltd.     

Ethics,gratuities, and professionalization of the purchasing function

This study investigated (1) whether potential future purchasing agents were predisposed to accept gratuities or whether the practice of gratuity acceptance is a manifestation of the job itself, (2) whether the existence of a code of ethics forbidding gratuity acceptance curtails the occurrence, and (3) whether disparities in ethics policies between the sales and purchasing functions affect gratuity acceptance. Hypotheses based upon the concepts of organizational concern and institutionalized ethics are developed and empirically tested. Results suggest that future purchasing agents are predisposed to accept gratuities and that formal written ethics policies decrease the acceptance of gratuities. Disparities in ethics policies between the sales and purchasing functions concerning gratuities failed to affect gratuity acceptance significantly.Gregory B. Turner is assistant professor of marketing at Livingston University. He has published inThe International Journal of Logistics Management and theTransportation Journal.G. Stephen Taylor is Associate Professor of management at Mississippi State University. His research interests include ethics in computer usage, performance appraisal, and turnover control.Mark F. Hartley is Assistant Professor and National Association of Purchasing Management/Carolinas-Virginia chair of Purchasing at the College of Charleston. His research interests include ethics and professionalization of the purchasing function.     

Business ethics,economic development and protection of the environment in the new world order

The end of the cold war has elevated environmental issues to the highest level of concern for humanity while creating a world order dominated by the United States of America and other Western nations. This new power structure may likely lead to increased business activity in many parts of the world, as nations formerly preoccupied with the cold war turn their attention to economic development. This paper examines the linkages among ethics, economic development and protection and restoration of the environment in The New World Order.Emily F. Carasco is Associate Professor at the Faculty of Law of the University of Windsor. Her research focus is on international law and family law.Jang B. Singh is Associate Professor at the Faculty of Business Administration of the University of Windsor. His research focus is on ethical issues involved in the management process.     

Human capital,investment and growth: Some results from an endogenous growth model

Recent theoretical literature on the sources of economic growth has emphasized the role of human capital as an internal contributing force in the growth process. Empirical results reported in this paper provide support for this theoretical proposition. Cross-country data from 32 developing countries indicate that human capital (as alternatively measured by the primary school enrollment rate or the adult literacy rate) exerts a significant positive impact upon output growth.     

B‐TO‐B E‐COMMERCE: A CONTENT ANALYTICAL ASSESSMENT OF MOTOR CARRIER WEBSITES

An Internet presence is a critical early component in the process of building towards a fully operational and unified e‐commerce strategy. E‐commerce has significantly impacted logistics/supply chain strategies and the development and implementation of a website have become key issues for many firms within the transportation industry. This study provides an overview of website content within the motor carrier industry. Content analysis was used to assess the site design, informational content, and the interactive content of 152 motor carrier websites, and to compare the features offered on the Top 100 motor carrier firm websites with those offered on the sites of smaller carrier firms.