Factors important in the translocation process of proteins across the nuclear membrane were studied by microinjecting either fluoresceinated nonimmune IgG and F(ab)2 or the corresponding molecules, prepared from antisera to histones, into the nucleus and cytoplasm of human fibroblasts. Intact IgG from both preparations remained at the site of injection regardless of whether it was injected into...

This paper describes a behavior-based approach to stealth. The specific problem we consider is that of making stealthy traverses, i.e., transiting from one point to another while remaining hidden from an observer. Since we assume that the robot has no a priori model of the environment, our stealthy traverse behavior makes opportunistic use of terrain features to hide from the observer. This beh...

The dynamic topological order problem is that of efficiently updating a topological order after some edge(s) are inserted into a graph. Much prior work exists on the unit-change version of this problem, where the order is updated after every single insertion. No previous (non-trivial) algorithms are known for the batch version of the problem, where the order is updated after every batch of inse...

We synthesize a new longitudinal framework for investing in IT assets to support sustainability and to prescribe specific investments for each stage of sustainability. This framework provides an IT investment plan for organizations that supports the five stages of sustainability and will positively moderate the relationship between an organization’s ability to traverse the stages of sustainabil...

Central to effective roadway design is the ability to understand how drivers behave as they traverse a segment of roadway. While simple and complex microscopic models have been used over the years to analyse driver behaviour, most models: 1.) incorporate separate car-following and lane-changing algorithms, and thus do not capture the interdependencies between lane-changing and car-following veh...

This paper investigates alternative methods for multichannel sound diffusion which are based on the mapping of physical gestures to spatial location. The approach addresses issues surrounding the inappropriateness of mixing consoles as an effective interface for sound diffusion in multi-channel loudspeaker environments and instead proposes a system that allows the user to traverse all possible ...

1.0 Introduction Recent years have seen an increase in the number of devices with differing communication, compute and display capabilities. Increasingly, services need to interact with a wide spectrum of devices with varying networking capabilities. In most cases, services and the functions that they perform are independent of the transports deployed for communications. Furthermore, given the ...