Book Description

Interactions of photons and electrons with atoms, molecules, and ions are fundamental elementary processes in a wide variety of neutral or ionized gases in nature or laboratory. The data on the cross sections or related quantities for those processes are eagerly needed in many fields of application such as astrophysics, atmospheric science, plasma science, radiation physics and chemistry, etc. They are also important in understanding physical or chemical properties of atoms, molecules, and their ions. Volume I/17 provides cross section data and related quantitative information on the collisions of photons with atoms, electrons with atoms, and electrons with atomic ions. Subvolume I/17A deals with the interactions of photons and electrons with neutral atoms. ... Read more

Book Description

Paperback. The first section of this volume focuses on the molecular mechanisms promoting and limiting the generation of genetic variation and gives a number of important, well-researched examples of the effects of genomic changes in pathogenic bacteria. The middle part of this book is devoted to host-parasite interactions. The activity of some genes is needed for survival and multiplication in the host. Five chapters demonstrate the powerful methods available to study host-parasite interactions. The third and final section of this publication deals with population genetics and clonal spread. ... Read more

Book Description

In previous volumes in this series, Advances in Metal and Semiconductor Clusters, the focus has been on atomic clusters of metals, semiconductors and carbon.Fundamental gas phase studies have been surveyed, and most recently scientists have explored new materials which can be produced from clusters or cluster precursors.In this latest volume, the focus shifts to clusters composed primarily of non-metal molecules or atoms which have one or more metal atoms seeded into the cluster as an impurity.These clusters provide model systems for metal ion solvation processes and metal-ligand interactions. Metal-ligand bonding underlies the vast fields of organometallic chemistry, transition metal chemistry and homogeneous catalysis.Catalytic activity, ligand displacement reactions and photochemical activity depend on the specific details of metal-ligand bonding.Likewise, metal ions are ubiquitous in chemistry and biology and weaker elect ... Read more