Escalation of commitment has been linked to losses in information systems （IS） projects. Understanding the nature and the rationality of escalation allows the firm to promote optimal project management practices. Th...Escalation of commitment has been linked to losses in information systems （IS） projects. Understanding the nature and the rationality of escalation allows the firm to promote optimal project management practices. This study takes an inter-disciplinary approach and draws on research from economics and management to create a model of irrational escalation and a model of rational escalation. The forces that contribute to irrational escalation include the responsibility of the same manager for both the project selection and project continuation decisions that create proneness to self-justification, the potential for negative framing of decision options due to large sunk costs, the proximity of project completion and the presence of organizational inertia. Identifying these irrational escalation factors helps design appropriate de-escalation techniques. The rational escalation model draws on the real option theory and the bandit process theory to identify conditions when project continuation is justified by the value of information and the value of flexibility that the firm receives from continuing the project.展开更多
Senior corporate managers＇ innovation ability and spirit are very important in the growth process of corporate business development. This paper focuses on the innovation capacities of the senior corporate managers of...Senior corporate managers＇ innovation ability and spirit are very important in the growth process of corporate business development. This paper focuses on the innovation capacities of the senior corporate managers of listed companies in China and the complex relationship between firm performance and the operating environment to study and analyze the management and development of Chinese enterprises. Through relevant theoretical analysis and development of research hypotheses using the A-shares in Shanghai and Shenzhen listed companies announced in 2007 and 2008, the authors design an empirical model. The study found that in Chinese listed companies, the higher the innovation spirit of senior corporate managers, the better their business performances; the stronger the dynamic and complexity of the operating environment, the more the corporate managers＇ innovation ability will be developed.展开更多
This paper presented an online quality inspection system based on artificial neural networks. Chromatism classification and edge detection are two difficult problems in glass steel surface quality inspection. Two arti...This paper presented an online quality inspection system based on artificial neural networks. Chromatism classification and edge detection are two difficult problems in glass steel surface quality inspection. Two artificial neural networks were made and the two problems were solved. The one solved chromatism classification. Hue, saturation and their probability of three colors, whose appearing probabilities were maximum in color histogram, were selected as input parameters, and the number of output node could be adjusted with the change of requirement. The other solved edge detection. In this neutral network, edge detection of gray scale image was able to be tested with trained neural networks for a binary image. It prevent the difficulty that the number of needed training samples was too large if gray scale images were directly regarded as training samples. This system is able to be applied to not only glass steel fault inspection but also other product online quality inspection and classification.展开更多
This paper investigates one aspect of the processing perspective in L2 （the second language） learning： the processing of new words. The article does not try to offer a comprehensive overview of language acquisition...This paper investigates one aspect of the processing perspective in L2 （the second language） learning： the processing of new words. The article does not try to offer a comprehensive overview of language acquisition mechanisms, but rather it intends to review more narrowly how our conceptual systems, governed by intricately linked networks of neural connections in the brain, make language development possible, at the same time creating some L2 processing problems. Vocabulary acquisition and application has been one of the main issues in English as a Second Language （ESL）/English as a Foreign Language （EFL） learning and teaching research. EFL instructors in Bosnia and Herzegovina, in particular, are coping with the effective vocabulary teaching approaches. The current paper will examine three principles based on cognitive linguistics （CL）, namely the study of categorization, prototype, and metaphor, and applications of these principles in formal vocabulary instruction in a Bosnian context of English learning in Bosnia and Herzegovina.展开更多
The Organisation for Economic Cooperation and Development （OECD） defines corporate governance as, ＂the way in which boards oversee the running of a company by its managers, and how board members are in turn account...The Organisation for Economic Cooperation and Development （OECD） defines corporate governance as, ＂the way in which boards oversee the running of a company by its managers, and how board members are in turn accountable to shareholders and the company.＂ In recent years the issue of corporate governance and committees related to it and their impacts on corporate performance have continued to gain widespread prominence in the capital market economy. Corporate Governance Rating is meant to indicate the relative level to which an organisation accepts and follows the codes and guidelines of corporate governance practices. The purpose of the paper is to examine the rating reports of 27 companies which have obtained the corporate governance rating by rating agencies. The study highlights that the ＂stakeholders＂ sections of the reports are the most powerful part of the reports whereas the ＂board of directors＂ sections are the weakest. Potential areas for improvements are also identified.展开更多
Objective: To study cyclinD1/bcl-1 and p27/kip1 expression in gliomas and their correlation with pathological grade and prognosis. Methods: Immunohistochemical technique was used to detect the cyclinD1/bcl-1 and p...Objective: To study cyclinD1/bcl-1 and p27/kip1 expression in gliomas and their correlation with pathological grade and prognosis. Methods: Immunohistochemical technique was used to detect the cyclinD1/bcl-1 and p27/kip1 expression in 48 human brain glioma tissues of different malignant grades, and 12 normal non-neoplastic tissues collected from internal decompression. The data were analyzed quantitatively by the image system and also correlated retrospectively with the patients' clinical characteristics. Results: The immunohistochemical reaction for cyclinD1/bcl-1 and p27/kip1 was confined to the nuclei. The abnormal positive expression rates of both cyclinD1/bcl-1 and p27/kip1 in gliomas were found higher than that in non-neoplastic tissues(P<0.05). The number and staining intensity of cyclinD1/bcl-1 positive nuclei increased with malignant grades (P<0.05). On the contrary, the positive nuclei of p27/kip1 expression decreased in number and staining intensity with malignant grades(P<0.05). Higher expression of cyclinD1/bcl-1 or/and lower expression of p27/kip1 were associated with poor prognosis(P<0.05). Conclusion: The abnormal expression of both cyclinD1/bcl-1 and p27/kip1 might be closely related to the occurrence and development of gliomas and they might have synergistic effect. These data suggest that both cyclinD1/bcl-1 expression and p27/kip1 expression can act as an independent prognostic factor.展开更多
Since 2010, there has been renewed discussion on China＇s economic future. After 30 years of breakneck economic growth, China＇s position in the world economy is more important than ever and people must understand how...Since 2010, there has been renewed discussion on China＇s economic future. After 30 years of breakneck economic growth, China＇s position in the world economy is more important than ever and people must understand how China＇s economic dominance will change the world economy. Some economists who are bearish about China＇s future believe that China＇s growth engine will lose fire in the next two or three years. To address their predictions about China＇s future, the author will address three themes： （11） Why did China manage to grow so rapidly？ （2） How long will China keep growing？ （3） Can China＇s economy keep growing in the future？ By analyzing the theory of inadequate consumer demand in China and by evaluating the general patterns of China＇s basic advantages in education, technology and human capital and industrial upgrading, the author explicitly argue why it is unlikely for China to fall into the ＂middle-income trap. ＂展开更多
Performance management has become a competitive advantage of enterprises to cultivate core competitiveness of strategic initiatives, but how to act performance management out scientifically has been difficult. An uncl...Performance management has become a competitive advantage of enterprises to cultivate core competitiveness of strategic initiatives, but how to act performance management out scientifically has been difficult. An unclear understanding of the various issues often results in improper handling counterproductive. Thus, we should analyze human resource performance management problems and their causes, and only on this basis can we establish and implement effective hunlan resource management system dynamic performance during the difficulties and the main factors that should be considered to elaborate.展开更多
文摘Escalation of commitment has been linked to losses in information systems （IS） projects. Understanding the nature and the rationality of escalation allows the firm to promote optimal project management practices. This study takes an inter-disciplinary approach and draws on research from economics and management to create a model of irrational escalation and a model of rational escalation. The forces that contribute to irrational escalation include the responsibility of the same manager for both the project selection and project continuation decisions that create proneness to self-justification, the potential for negative framing of decision options due to large sunk costs, the proximity of project completion and the presence of organizational inertia. Identifying these irrational escalation factors helps design appropriate de-escalation techniques. The rational escalation model draws on the real option theory and the bandit process theory to identify conditions when project continuation is justified by the value of information and the value of flexibility that the firm receives from continuing the project.
文摘Senior corporate managers＇ innovation ability and spirit are very important in the growth process of corporate business development. This paper focuses on the innovation capacities of the senior corporate managers of listed companies in China and the complex relationship between firm performance and the operating environment to study and analyze the management and development of Chinese enterprises. Through relevant theoretical analysis and development of research hypotheses using the A-shares in Shanghai and Shenzhen listed companies announced in 2007 and 2008, the authors design an empirical model. The study found that in Chinese listed companies, the higher the innovation spirit of senior corporate managers, the better their business performances; the stronger the dynamic and complexity of the operating environment, the more the corporate managers＇ innovation ability will be developed.
基金Supported by Science and Technology Fundation (China University of Geosciences) (No.200520)
文摘This paper presented an online quality inspection system based on artificial neural networks. Chromatism classification and edge detection are two difficult problems in glass steel surface quality inspection. Two artificial neural networks were made and the two problems were solved. The one solved chromatism classification. Hue, saturation and their probability of three colors, whose appearing probabilities were maximum in color histogram, were selected as input parameters, and the number of output node could be adjusted with the change of requirement. The other solved edge detection. In this neutral network, edge detection of gray scale image was able to be tested with trained neural networks for a binary image. It prevent the difficulty that the number of needed training samples was too large if gray scale images were directly regarded as training samples. This system is able to be applied to not only glass steel fault inspection but also other product online quality inspection and classification.
文摘This paper investigates one aspect of the processing perspective in L2 （the second language） learning： the processing of new words. The article does not try to offer a comprehensive overview of language acquisition mechanisms, but rather it intends to review more narrowly how our conceptual systems, governed by intricately linked networks of neural connections in the brain, make language development possible, at the same time creating some L2 processing problems. Vocabulary acquisition and application has been one of the main issues in English as a Second Language （ESL）/English as a Foreign Language （EFL） learning and teaching research. EFL instructors in Bosnia and Herzegovina, in particular, are coping with the effective vocabulary teaching approaches. The current paper will examine three principles based on cognitive linguistics （CL）, namely the study of categorization, prototype, and metaphor, and applications of these principles in formal vocabulary instruction in a Bosnian context of English learning in Bosnia and Herzegovina.
文摘The Organisation for Economic Cooperation and Development （OECD） defines corporate governance as, ＂the way in which boards oversee the running of a company by its managers, and how board members are in turn accountable to shareholders and the company.＂ In recent years the issue of corporate governance and committees related to it and their impacts on corporate performance have continued to gain widespread prominence in the capital market economy. Corporate Governance Rating is meant to indicate the relative level to which an organisation accepts and follows the codes and guidelines of corporate governance practices. The purpose of the paper is to examine the rating reports of 27 companies which have obtained the corporate governance rating by rating agencies. The study highlights that the ＂stakeholders＂ sections of the reports are the most powerful part of the reports whereas the ＂board of directors＂ sections are the weakest. Potential areas for improvements are also identified.
文摘Objective: To study cyclinD1/bcl-1 and p27/kip1 expression in gliomas and their correlation with pathological grade and prognosis. Methods: Immunohistochemical technique was used to detect the cyclinD1/bcl-1 and p27/kip1 expression in 48 human brain glioma tissues of different malignant grades, and 12 normal non-neoplastic tissues collected from internal decompression. The data were analyzed quantitatively by the image system and also correlated retrospectively with the patients' clinical characteristics. Results: The immunohistochemical reaction for cyclinD1/bcl-1 and p27/kip1 was confined to the nuclei. The abnormal positive expression rates of both cyclinD1/bcl-1 and p27/kip1 in gliomas were found higher than that in non-neoplastic tissues(P<0.05). The number and staining intensity of cyclinD1/bcl-1 positive nuclei increased with malignant grades (P<0.05). On the contrary, the positive nuclei of p27/kip1 expression decreased in number and staining intensity with malignant grades(P<0.05). Higher expression of cyclinD1/bcl-1 or/and lower expression of p27/kip1 were associated with poor prognosis(P<0.05). Conclusion: The abnormal expression of both cyclinD1/bcl-1 and p27/kip1 might be closely related to the occurrence and development of gliomas and they might have synergistic effect. These data suggest that both cyclinD1/bcl-1 expression and p27/kip1 expression can act as an independent prognostic factor.
文摘Since 2010, there has been renewed discussion on China＇s economic future. After 30 years of breakneck economic growth, China＇s position in the world economy is more important than ever and people must understand how China＇s economic dominance will change the world economy. Some economists who are bearish about China＇s future believe that China＇s growth engine will lose fire in the next two or three years. To address their predictions about China＇s future, the author will address three themes： （11） Why did China manage to grow so rapidly？ （2） How long will China keep growing？ （3） Can China＇s economy keep growing in the future？ By analyzing the theory of inadequate consumer demand in China and by evaluating the general patterns of China＇s basic advantages in education, technology and human capital and industrial upgrading, the author explicitly argue why it is unlikely for China to fall into the ＂middle-income trap. ＂
文摘Performance management has become a competitive advantage of enterprises to cultivate core competitiveness of strategic initiatives, but how to act performance management out scientifically has been difficult. An unclear understanding of the various issues often results in improper handling counterproductive. Thus, we should analyze human resource performance management problems and their causes, and only on this basis can we establish and implement effective hunlan resource management system dynamic performance during the difficulties and the main factors that should be considered to elaborate.
