Using the underlying idea of the current-mode control, a new dynamical, sliding-mode control for the boost dc-dc converter is proposed. Such controller is easy to design, robust under load and input voltage variations, exhibits fast response, does not depend on…

Following the deaths of Victoria Climbié and of Peter Connelly (Baby P) the media has raged about social work competence, the public have expressed dismay and the government has responded with proposals designed to alter practice procedures. Altering procedures gives…

Investigates informal leisure uses of technology, including developing home pages, building special interest sites, surfing the Net and participating in electronic communities.

The purpose of this paper is to introduce patent litigation as a leading indicator of market
growth. We model the intensity of patent litigation and the market growth for the
personal computer and cellular phone market in the US. By…

We report the creation of strained silicon on silicon (SSOS) substrate technology. The method uses a relaxed SiGe buffer as a template for inducing tensile strain in a Si layer, which is then bonded to another Si handle wafer. The…

Tennis is a sport that is characterized by intermittent dynamics, with intervallic moderate and high-intensity efforts due to repetitive actions of short-duration and high intensity. This review analyzes aspects such as the game's temporal structure, oxygen consumption, heart rate, lactate…

Childhood obesity is heavily documented as a public health crisis in the United
States. Today, more than one-third of American youth can be medically classified as
overweight or obese. Of those children, a disproportionately high number are Hispanic.
There is…

The United States education system is not meeting the needs of today’s youth, and
this is especially the case for minority and low socio-economic status youth. Although
there are a number of policy proposals that could improve youth academic performance,

Can children genuinely create new knowledge, as opposed to merely carrying out activities that resemble those of mature scientists and innovators? The answer is yes, provided the comparison is not to works of genius but to standards that prevail in…

The Knowledge Society Network (KSN) “takes advantage of new knowledge media to maximize and democratize society’s knowledge-creating capacity” (www.ikit.org/KSN). This article synthesizes the principles and designs of this network which were initiated over 15 years ago, and presents an exploratory…