Capturing and managing email knowledge.

In many successful organisations today, significant resources are invested in training and development efforts exploring group dynamics and effective team building. The challenge from a knowledge management perspective is to explore how technology could facilitate knowledge sharing (both tacit and explicit) in a group context. The paper highlights the benefits of developing such Knowledge Management tools to make better use of the information contained within email messages, and shows how organisations could become more effective by adopting such an application

The effectiveness of training in reducing email defects

Previous research has shown that there are many defects associated with email use within the workplace. This paper describes the effectiveness of email training in enabling employees to write better emails. Employees were asked to evaluate the emails they received from specified senders before and after the senders had received training. These emails were marked against a set of ten criteria that covered different aspects of email, including whether the email had a suitable subject line, whether it was relevant and if it was easy to read. By comparing the results before and after the training it is possible to see how effective the training has been and which areas of email use benefited the most from the training. The results show that some of the email defects are more receptive to training than others. The data also shows the relationships between the evaluation criteria used. This is important because it shows how some of the problems with email are related; similarly it shows how an improvement in one area is likely to lead to an improvement in another. This paper highlights some of the problem areas often associated with email and shows the effect of training in reducing these email defects

Email training significantly reduces email defects

Organisations are now becoming aware of the problems associated with email use and are keen to reduce these defects. These email defects relate to the ineffective way that email is used within organisations, and are not only limited to the volume of email that is sent and received, but also the quality of the email content. Email defects lead to inefficiencies within the workplace as employees spend more time dealing with email rather than doing other aspects of their job. This paper firstly examines how email is used within a large organisation and highlights the defects associated with email. The initial results show that these defects affect some groups of employees more than others. The paper also reports on the effectiveness of email training in reducing the defects associated with email use. The results show that some of these defects are related and that training can significantly reduce some of the email defects and improve the way people write emails

Measuring electronic communication defects and their impact at 3M

Although email is frequently often thought of as a quick and efficient form of communication, often little thought is given to how email affects the employee. This paper has made steps towards gaining a better understanding of email communication and how it can be used more effectively in an organisation. The results obtained from this study can also provide the basis for communication usage policies and training, which could then reduce wasted time and improve employee productivity. It has also shown both the value of obtaining metrics and the difficulties involved. The paper highlights some of the problems, and some of the issues that need to be addressed with email communication within a large organisation

Warped Reheating in Multi-Throat Brane Inflation

We investigate in some quantitative details the viability of reheating in multi-throat brane inflationary scenarios by estimating and comparing the time scales for the various processes involved. We also calculate within perturbative string theory the decay rate of excited closed strings into KK modes and compare with that of their decay into gravitons; we find that in the inflationary throat the former is preferred. We also find that over a small but reasonable range of parameters of the background geometry, these KK modes will preferably tunnel to another throat (possibly containing the Standard Model) instead of decaying to gravitons due largely to their suppressed coupling to the bulk gravitons. Once tunneled, the same suppressed coupling to the gravitons again allows them to reheat the Standard Model efficiently. We also consider the effects of adding more throats to the system and find that for extra throats with small warping, reheating still seems viable.Comment: 29 pages, 4 figures, discussions on closed string decay expanded, references adde

Overproduction of cosmic superstrings

We show that the naive application of the Kibble mechanism seriously underestimates the initial density of cosmic superstrings that can be formed during the annihilation of D-branes in the early universe, as in models of brane-antibrane inflation. We study the formation of defects in effective field theories of the string theory tachyon both analytically, by solving the equation of motion of the tachyon field near the core of the defect, and numerically, by evolving the tachyon field on a lattice. We find that defects generically form with correlation lengths of order M_s^{-1} rather than H^{-1}. Hence, defects localized in extra dimensions may be formed at the end of inflation. This implies that brane-antibrane inflation models where inflation is driven by branes which wrap the compact manifold may have problems with overclosure by cosmological relics, such as domain walls and monopoles.Comment: 31 pages, 16 figures, JHEP style; References added; Improved discussion of initial condition

The effect of extra dimensions on gravity wave bursts from cosmic string cusps

We explore the kinematical effect of having extra dimensions on the gravity wave emission from cosmic strings. Additional dimensions both round off cusps, and reduce the probability of their formation. We recompute the gravity wave burst, taking into account these two factors, and find a potentially significant damping on the gravity waves of the strings.Comment: 33 pages, 8 figures, published versio

Brane Inflation and Cosmic String Tension in Superstring Theory

In a simple reanalysis of the KKLMMT scenario, we argue that the slow roll condition in the D3-anti-D3-brane inflationary scenario in superstring theory requires no more than a moderate tuning. The cosmic string tension is very sensitive to the conformal coupling: with less fine-tuning, the cosmic string tension (as well as the ratio of tensor to scalar perturbation mode) increases rapidly and can easily saturate the present observational bound. In a multi-throat brane inflationary scenario, this feature substantially improves the chance of detecting and measuring the properties of the cosmic strings as a window to the superstring theory and our pre-inflationary universe.Comment: Combined bounds from WMAP and SDSS Lyman alpha experiments are added for analysis, changes are added to the tabl

Cosmic Strings and Superstrings

Cosmic strings are predicted by many field-theory models, and may have been formed at a symmetry-breaking transition early in the history of the universe, such as that associated with grand unification. They could have important cosmological effects. Scenarios suggested by fundamental string theory or M-theory, in particular the popular idea of brane inflation, also strongly suggest the appearance of similar structures. Here we review the reasons for postulating the existence of cosmic strings or superstrings, the various possible ways in which they might be detected observationally, and the special features that might discriminate between ordinary cosmic strings and superstrings.Comment: Minor errors corrected and some references added, 34 pages, 6 figure