The development of good quality software is a critical element of successful competition for today’s software market shares. However, software products are becoming larger and more complex; therefore, the development of quality software is neither easy nor rapid. Agile software development methods focus on generating early releases of working products. They aim to deliver business value immedia...

Extreme Programming (XP) is becoming popular as a software development method and there is quite a lot of literature describing its philosophy and practices. However, in all of this literature Software Configuration Management (SCM) is almost never mentioned explicitly, leaving XP practitioners with the impression that SCM is not needed and SCM people with the impression that XP is not sound fr...

We have investigated the effects of sulfated chitin derivatives and heparin on the invasion of B16-BL6 melanoma cells through reconstituted basement membrane Matrigel which contains laminin, type IV collagen, heparin sulfate proteoglycan, and entactin. 6-O-sulfated chitin (S-chitin) and 6-O-sulfated and carboxymethyl chitin (SCM-chitin) significantly inhibited the penetration of tumor cells thr...

We have investigated the effects of sulfated chitin derivatives and heparin on the invasion of B16-BL6 melanoma cells through reconstituted basement membrane Matrigel which contains laminin, type IV collagen, heparan sulfate proteoglycan, and entactin. 6-O-sulfated chitin (S-chitin) and 6-O-sulfated and carboxymethyl chitin (SCM-chitin) significantly inhibited the penetration of tumor cells thr...

Separation of concerns is one of the foundational rules of software engineering. Separating the aspects of systems that perform different roles simplifies the code of software systems, making those systems easier to implement, easier to understand, and less prone to bugs. Similarly, software configuration management (SCM) systems are one of the foundational tools of software engineering. SCM to...

Software configuration management (SCM) is the discipline of controlling the evolution of large and complex software systems. Many tools and systems for SCM have been developed which are based on a variety of different version models. Usually, an SCM application is a single software system whose underlying architecture is implicitly defined by its implementation. MOD2-SCM, instead, is a modular...

Software configuration management (SCM) is the discipline of controlling the evolution of large and complex software systems. Many tools and systems for SCM have been developed which are based on a variety of different version models. Usually, the underlying version models have been hard-wired into the respective tool or system. In this paper we present MOD2-SCM, a PhD project which is dedicate...

The third generation partnership Project’s (3GPP) spatial channel model (SCM) is a stochastic channel model for MIMO systems. Due to fixed subpath power levels and angular directions, the SCM model does not show the degree of variation which is encountered in real channels. In this paper, we propose a modified SCM model which has random subpath powers and directions and still produces Laplace s...

The current SCM (Successive Correction Method) routine in GEOSDAS seems to leave room for improvement. This report first shows the problem with the current SCM smoothing solution, and then introduces an iterative algorithm and a Sigmoid function to improve the solution. Parameters in the iterative algorithm are studied in this report. The overall performance and accuracy of the iterative method...