RECENT OBSERVATIONS ON EXPLOSIVE AGENTS

Gamma-Ray Observations of Explosive Nucleosynthesis Products

In this review I discuss the various γ-ray emission lines that can be expected and, in some cases have been observed, from radioactive explosive nucleosynthesis products. The most important γ-ray lines result from the decay chains of Ni, Ni, and Ti. Ni is the prime explosive nucleosynthesis product of Type Ia supernovae, and its decay determines to a large extent the Type Ia light curves. Ni is...

Leptospirosis : Recent Observations 617 105 Leptospirosis : Recent Observations

Some Observations on Recent Economic Developments

I confess that I had diffi culty in deciding on a topic for tonight’s talk. There were, in my view, no burning issues that I wanted to address, or messages that I wanted to leave my listeners with. In the event, I have decided to talk about three topics: how the world has coped with a tripling of oil prices, how the world is emerging from a period of exceptionally low interest rates, and, quite...

Recent Observations on " Forestry Tropical _ America • In

. ~ :: During recent months members of the Tropical Forest Research Center staff have travelled to many of the countries of the Caribbean area. The purposes of these -t!'ips have been to see trees, forests, and silvicultural and utilization practices that might be useful in Puerto Rico, to collect data on forest plantations for the Latin American Forestry Commission ofF AO, and to obtain infonn...

Recent Observations on Cavitation and Cavitation Noise

This paper is primarily concerned with the acoustics of traveling bubble cavitation around foils or headforms. We begin with observations of individual bubbles and the acoustic signals they emit, our purpose being to identify areas of research which would enhance our tlriderstaridirig of the history of individual bubbles. Then we present some riumerical integrations of the Rayleigh/Plesset equa...