Rise and fall of saliva pH by heating

The Rise and Fall of the Israeli-Palestinian Peace Process

This article examines the rise and fall of the Peace Process and questions the reason for which the United States of America was successful in bringing the two sides to the negotiating table during the 1990s. It investigates the reason for which the process ultimately failed, as well as the reason for which Washingtonwas unsuccessful in restarting the peace process in the past decade. It is arg...

Rise and fall.

If you travel almost anywhere in the world and talk to family physicians, you will find that they regard the British system of general practice as an ideal. Some of its central principles—including continuity of personal care, and acting as a ‘‘gatekeeper’’ for all hospital referrals— are widely envied, and have provided a model for other primary care systems. Yet British general practice is no...

Fall and rise of polypharmacy?

Early in the 20th century, in an era before the wide availability of effective drugs with established dose ranges and proven outcomes, the use of multiple drug combinations in individual tablets and capsules, described as polypharmacy, was common. Although there may have been a rational selection of agents sometimes, on more occasions a mixture was developed of dubious efficacy and rationale. W...

The Rise and Fall and Rise of Ancient DNA Studies

The Rise and Fall and Rise of Combinatorial Key Predistribution

There are many applications of symmetric cryptography where the only realistic option is to predistribute key material in advance of deployment, rather than provide online key distribution. The problem of how most effectively to predistribute keys is inherently combinatorial. We revisit some early combinatorial key predistribution shemes and discuss their limitations. We then explain why this p...