J. M. Heale Скачать все книги 3 Количество книг

A bomb in Rome, a flash of bluish-white light, and photojournalist Josh Ryder's world exploded. From that instant nothing would ever be the same.As Josh recovers, his mind is increasingly invaded with thoughts that have the emotion, the intensity, the intimacy of memories. But they are not his memories. They are ancient– and violent. A battery of medical and psychological tests can't explain Josh's baffling symptoms.And the memories have an urgency he can't ignore– pulling him to save a woman named Sabina– and the treasures she is protecting. But who is Sabina? Desperate for answers, Josh turns to the world-renowned Phoenix Foundation– a research facility that scientifically documents cases of past life experiences.His findings there lead him to an archaeological dig and to Professor Gabriella Chase, who has discovered an ancient tomb– a tomb with a powerful secret that threatens to merge the past with the present. Here, the dead call out to the living, and murders of the past become murders of the present.

This history of America’s recent past focuses on the importance of the United States’ interaction with the outside world and includes detailed accounts of the presidencies of Reagan, Clinton and George W. Bush. Provides a substantial account of the dramatic history of America since 1980, covering the Reagan years, the Clinton presidency, the impact of 9/11, the War on Terror, and the election of Barack Obama Based on both secondary and primary resources, and includes research taken from newspapers, magazines, official documents, and memoirs Written by a distinguished contemporary historian and a leading historian of the United States Discusses the growing fragmentation of American society and the increasing distance between rich and poor under the impact of public policies and global forces

By means of electrochemical treatment, crystalline silicon can be permeated with tiny, nanostructured pores that entirely change the characteristics and properties of the material. One prominent example of this can be seen in the interaction of porous silicon with living cells, which can be totally unwilling to settle on smooth silicon surfaces but readily adhere to porous silicon, giving rise to great hopes for such future applications as programmable drug delivery or advanced, braincontrolled prosthetics. Porous silicon research is active in the fields of sensors, tissue engineering, medical therapeutics and diagnostics, photovoltaics, rechargeable batteries, energetic materials, photonics, and MEMS (Micro Electro Mechanical Systems). Written by an outstanding, well-recognized expert in the field, this book provides detailed, step-by-step instructions to prepare and characterize the major types of porous silicon. It is intended for those new to the fi eld. Sampling of topics covered: * Principles of Etching Porous Silicon * Etch Cell Construction and Considerations * Photonic Crystals, Microcavities, and Bragg Stacks Etched in Silicon * Preparation of Free-standing Films and Particles of Porous Silicon * Preparation of Photoluminescent Nanoparticles from Porous Silicon * Preparation of Silicon Nanowires by Electrochemical Etch of Silicon * Surface Modifi cation Chemistry and Biochemistry * Measurement of Optical Properties * Measurement of Pore Size, Porosity, Thickness, Surface Area The whole is backed by a generous use of color photographs to illustrate the described procedures in detail, plus a bibliography of further literature pertinent to a wide range of application fi elds. For materials scientists, chemists, physicists, optical physicists, biomaterials scientists, neurobiologists, bioengineers, and graduate students in those fields, as well as those working in the semiconductor industry.