If you are preparing for any version of the TOEFL, you are not alone. Almost a million people all over the world took the TOEFL last year. A high score on this test is an essential step in being admitted to graduate or undergraduate programs at almost all colleges and universities in North America. But preparing for this test can be a...

As highways, crossing points, and urban streets become increasingly jammed with traffic, more and more roadway authorities are turning to electronic tolling and pricing to manage traffic and road usage. This authoritative book offers professionals expert guidance in planning, procuring, and operating electronic tolling and road-user charging...

Since 1982, Ras proteins have been the subject of intense research investigation by the biomedical research community. The wide interest in Ras has been stimulated for three key reasons. This book features chapters contributed by leading investigators in the field that highlight the current state-of-the art in Ras biochemistry, structure and...

Diabetes mellitus is an important public health problem worldwide, and more than 75% of patients who have had diabetes mellitus for more than 20 years will have some sort of retinopathy. Diabetic retinopathy correlates with the duration of diabetes; thus with increasing life expectancy, diabetic retinopathy and the ensuing blindness will tend...

Over the past 5 years there has been great excitement and controversy in the scientific, financial, and lay literature for the potential of stem cell-based strategies for the prev- tion and treatment of chronic heart failure (CHF). Not that long ago we believed we were born with a set number of cardiac myocytes and that once damaged there was...