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…

Aujourd’hui, on parle du Web social. Facebook par exemple, porte bien la marque de son époque ; il est devenu le réseau social le plus convoité dans le monde. Toutefois, l’entreprise a été souvent critiquée en raison de sa politique…

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,

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

Les élèves dyslexiques éprouvent de grandes difficultés à lire et à écrire. Leurs difficultés en production orthographique sont reconnues pour être persistantes. Elles peuvent être expliquées par un déficit des procédures phonologiques. Or, pour orthographier une langue alphabétique comme le…

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…

El presente trabajo describe el escenario actual de la figura del DirCom en Ecuador y propone una estrategia de comunicación orientada a posicionar y aumentar la notoriedad de la figura del DirCom en el ámbito empresarial y académico. En la…

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