Abdominal MR imaging following antegrade air introduction into the intestinal loops

Air was used to distend the gastrointestinal tract and act as a contrast medium to effectively delineate the other abdominal organs/masses and to outline intraluminal or mural lesions. We used a nasogastric tube to introduce air into the stomach. Metoclopramide was administered to propel air throughout the gastrointestinal tract. Bowel peristalsis was then controlled by scopolamine butylbromide. Most of the alimentary tract could be distended by air. The normal bowel walls were barely visible between intraluminal signal-void air and extraluminal high-signal fat. Intraluminal tumor, wall thickening, and adjacent structures could be clearly delineated.     

Retrograde air insufflation in MRI: A technical note

Retrograde air insufflation was employed to distend the colon and the ileum in 18 patients and five volunteers for magnetic resonance examination. Good and moderate marking of the ileum was obtained in 18 cases. The colon was nearly completely distended in every case. Intraluminal tumor, mural thickening, and extraluminal lesion were outlined by intraluminal air and surrounding air-distended bowel. This study shows that retrograde air insufflation is a useful method to mark the colon and most parts of the ileum.     

Barrier option pricing: a hybrid method approach

This paper adapts the hybrid method, a combination of the Laplace transformation and the finite-difference approach, to the pricing of barrier-style options. The hybrid method eliminates the time steps and provides a highly accurate and precise numerical solution that can be rapidly obtained. This method is superior to lattice methods when trying to solve barrier-style options. Previous studies have tried to solve barrier-style options; however, there have continually been several disadvantages. Very small time steps and stock node spaces are needed to avoid undesirable numerically induced oscillations in the solution of barrier option. In addition, all the intermediate option prices must be computed at each time step, even though one may be only interested in the terminal price of barrier-style complex options. The hybrid method may also solve more complex problems concerning barrier-style options with various boundary constraints such as options with a time-varying rebate. In order to demonstrate the accuracy and efficiency of the proposed scheme, we compare our algorithm with several well-known pricing formulas of barrier-type options. The numerical results show that the hybrid method is robust, and provides a highly accurate solution and fast convergence, regardless of whether or not the initial asset prices are close to the barrier.     

Knowledge flows and performance of multinational subsidiaries: the perspective of human capital

This paper examines the relationships between knowledge flows and subsidiaries' performance in the perspective of human capital. Our empirical study of 130 Taiwanese multinational companies' (MNCs') subsidiaries show that outflow of knowledge can enhance performance; however, the inflow of knowledge can facilitate performance only in the case of high investment of human capital in subsidiaries. Additionally, the effects of knowledge inflow on subsidiary's performance are found significant only in its earlier stage of establishment.     

Corporate elite characteristics and firm's internationalization: CEO-level and TMT-level roles

This study attempts resolution of certain ambiguities of the corporate elite – Chief Executive Officer (CEO) and Top Management Team (TMT) – effect on corporate internationalization strategy. This work hypothesized that curvilinear relationship exists between CEO position tenure, TMT size, and TMT tenure heterogeneity and a firm's internationalization, by combining previous upper echelon theory and processing international business school perspective. Our detailed empirical findings indicate that CEO and TMT characteristics show a nonlinear relationship, based on 165 samples of Taiwanese firms operating in a technologically intensive industry. An inverted U-shaped relationship exists between CEO position tenure and TMT size regarding a firm's internationalization. These associations are an inverted U-shape, when internationalization level facing TMT tenure heterogeneity is accounted for.     

The criticality of transferable skills development and virtual learning environments used in the teaching of project management

Studies have found the development of transferable skills and the provision of virtual learning environments (VLEs) to be crucial to students who are learning project management. Taking these factors into consideration, this article explores why project management students have emphasized the importance of these two critical learning and teaching parameters in their developmental needs. The study was conducted utilizing focus groups consisting of 88 students in a UK higher education institution. Overall, we found the existence of five critical and applied themes grouped against transferable skills and the provision of VLEs under which students' needs could be classified.     

Promoting organizational learning and self‐renewal in Taiwanese companies: The role of HRM

This study identifies key characteristics of human resource management (HRM) practices that contribute to promoting positive learning attitudes and creating a self‐renewal organizational climate. We use a behavioral perspective to develop a framework to show the relationships among learning‐oriented HRM, positive learning attitudes, and a self‐renewal organizational climate. Structural equation analysis is applied to empirically test the relationships and the path model suggests that a learning‐oriented HRM plays an important role in either directly creating a self‐renewal organizational climate or indirectly facilitating positive learning attitudes that foster organizational self‐renewal. © 2004 Wiley Periodicals, Inc.     

Towards an integrative framework of strategic international human resource control: the case of Taiwanese subsidiaries in the People's Republic of China

This study integrates the resource-based view of the firm, the resource dependence model, institutionalism theory and the cybernetic system model into a framework to investigate the determinants of international human resource (IHR) control at the subsidiary level. The effects of competitive strategies and the mediating effects of inter-organizational interdependencies on three different dimensions of IHR control (input, behaviour and output) were studied by using a sample of 101 Taiwanese subsidiaries operating in the People's Republic of China (PRC). Four notable associations were found: (1) a robust direct relationship between the adoption of a low-cost strategy and two dimensions of IHR control (behaviour and output) was testified; (2) an indirect effect of a low-cost strategy on IHR input control through dependence on the parent's resources was found; (3) the direct relationship between local differentiation strategy and IHR input control could not be testified because a positive mediating effect of dependence on local resources counteracted the negative mediating effect of dependence on parents resources; (4) the direct effects of dependence on local resources on the IHR input control and dependence on parent's resources on IHR input control and behavioural control were testified.     

How do business groups’ small world networks effect diversification,innovation, and internationalization?

Small world networks which demonstrate better group cohesiveness have attracted much theoretical attention in enhancing performance and creativity in strategic management. Yet, empirical studies of the benefits that can accrue to business groups’ strategic or economic outcomes remain scarce in the business group literature. Conceptualizing the business group as an embedded group network, we investigate the previously untested role of a small world group structure on relationships with group (industrial) diversification, core firm innovation and its internationalization. We find all these have positive and significant impacts. Group diversification is also found to mediate the relationship between a small world group structure and a group’s degree of internationalization. However, a small world group structure does not directly relate to a group’s degree of internationalization. Drawing on embeddedness and social network perspectives, we find general support for the hypotheses that a small world group structure facilitates strategic and economic outcomes for groups and core firms by virtue of efficiencies in resources exchange in a way that extends the literature on business groups.