BACKGROUND It has been reported that the tumor suppressor gene, PTEN, which is inactivated in many malignant tumors, plays an important role in apoptosis, cell cycle arrest, cell migration, and cell spread. For cancer gene therapy, one of the most important problems is low gene transfection efficiency. METHODS In the present study, to take full advantage of adenovirus in gene expression, we p...

We analyze a sequential decision making process, in which at each stepthe decision is made in two stages. In the rst stage a partially optimalaction is chosen, which allows the decision maker to learn how to improveit under the new environment. We show how inertia (cost of changing)may lead the process to converge to a routine where no further changesare made. We illustrate our scheme with some...

a survey was .carried out to determine the incidence of sepsis after surgical operation. a total of 133 cases were studied. 33 percent of elean wounds w~reqffected by some. post operative sepsis and yielded pathogenic bacteria on culture. staphylococcus aureus was the most common pathogen but pseudomonas and e. coli were also common. cultures were taken from the staff, the environment and objec...

A model is developed for performance analysis of a microcellular digital mobile radio system with Rayleigh-faded cochannel interference, Gaussian noise, and narrow-band impulsive noise (Middleton’s Class A noise) using the differential phase shift keying modulation (DPSK) technique. The desired signal has been assumed to be Rician faded. The effects of selection diversity on the performance hav...

Research suggests that attention is attracted to evolutionary threats (e.g., snakes) due to an evolved "fear-module" that automatically detects biological threats to survival. However, recent evidence indicates that non-evolutionary threats (e.g., guns) capture and hold attention as well, suggesting a more general "threat-relevance" mechanism that directs attentional resources toward any potent...

Face judgments of dominance play an important role in human social interaction. Perceived facial dominance is thought to indicate physical formidability, as well as resource acquisition and holding potential. Dominance cues in the face affect perceptions of attractiveness, emotional state, and physical strength. Most experimental paradigms test perceptions of facial dominance in individual face...

2.4 GHz-band wireless LAN system based on a new standard, IEEE 802.11g, has been taking a great attention as it provides the attractive features such as low cost, unlicensed spectrum use, and high speed transmission rate up to 54 Mbps. However, 2.4 GHz radio frequency band is also used for Industrial, Scientific and Medical (ISM) devices such as microwave ovens, and the man-made noise leaked fr...

rapid growth of e-commerce has made the competition quite different. in this new environment customers have wide choices and are looking forward to the support which guarantees the delivery of what they have chosen. this leads to complexity in the relationship between the provider and the customer which obviously is made more in a b2b environment. service level agreement (sla) is a key tool to ...