W. Richard Webb – författare

The physics of disordered systems has enjoyed a resurgence of interest in the last decade. New concepts such as weak localization, interaction effects and Coulomb gap, have been developed for the transport properties of metals and insulators. With the fabrication of smaller and smaller samples and the routine availability of low temperatures, new physics has emerged from the studies of small devices. The new field goes under the name "mesoscopic physics" and has rapidly developed, both experimentally and theoretically. This book is designed to review the current status of the field.Most of the chapters in the book are devoted to the development of new ideas in the field. They include reviews of experimental observations of conductance fluctuations and the Aharonov-Bohm oscillations in disordered metals, theoretical and experimental work on low frequency noise in small disordered systems, transmittancy fluctuations through random barriers, and theoretical work on the distribution of fluctuation quantities such as conductance. Two chapters are not connected directly to the mesoscopic fluctuations but deal with small systems. They cover the effects of Coulomb interaction in the tunneling through the small junctions, and experimental results on ballistic transport through a perfect conductor.

Featuring 229 sharp, new images obtained with state-of-the-art technology, the Second Edition of this popular pocket atlas is a quick, handy guide to interpreting computed tomography body images. It shows readers how to recognize normal anatomic structures on CT scans...and distinguish these structures from artifacts.Chapters cover the neck and larynx, thorax, portal venous phase abdomen, pelvis, arterial phase abdomen, and reconstructions. Each page presents a high-resolution image, with anatomic landmarks clearly labeled. Directly above the image are a key to the labels and a thumbnail illustration that orients the reader to the location and plane of view. This format--sharp images, orienting thumbnails, and clear keys--enables readers to identify features with unprecedented speed and accuracy.

In clear and concise language, Fundamentals of High-Resolution Lung CT, provides a straightforward guide to understanding the high-resolution lung CT (HRCT) assessment of diffuse lung diseases. You will learn to accurately interpret HRCT findings, and how those findings can translate into the correct diagnosis or appropriate differential diagnosis. This volume includes over 600 images we consider classic, many of which have been updated and improved to facilitate easier reading and more precise interpretation. This new edition includes two-page summaries of each chapter, including; key diseases, facts, and findings, as well as classic images -- useful for review or to better understand CT findings and specific topicsEvery chapter has been updated with new content and new imagery to reflect recent advances and understanding of diseases, and to aid in diagnosis.Numerous pathology images have been added to help you better understand disease processes.Seminal images are now highlighted so you can compare to more recent findings.Covers many commonly encountered diseases like pneumonias, sarcoidosis, and connective tissue diseases, as well as rare diseases.Not just for radiologists in practice and residence; specialists in pulmonology and oncology benefit, too! Enhance Your eBook Reading ExperienceRead directly on your preferred device(s), such as computer, tablet, or smartphone.Easily convert to audiobook, powering your content with natural language text-to-speech.

Until the middle of the present century, the morphology and function of the thymus were primarily of interest to those working in the fields of pathologic anatomy, endo­ crinology, and pediatrics. However, during recent decades careful and refined histo­ logic studies of the organ have expanded our knowledge. It now seems certain that the thymus plays a central role in the immune system, and some of the substances pro­ duced by this organ are considered together under the collective term of "thymic hor­ mones". In clinical medicine (in particular endocrinology and pediatrics, as well as surgery and radiologic oncology), the startling advances that have taken place in radiologic diagnostics with the advent of new imaging procedures such as computed tomography and magnetic resonance imaging have provided fresh impetus in the search for effec­ tive treatments for hyperplasia, tumors, and tumor-like changes of the thymus. Normal variants of the thymus, which lies concealed within the anterior superior mediastinum, have been recorded, and pathologic changes such as primary or secondary tumors can now be analyzed and correctly diagnosed.

Until the middle of the present century, the morphology and function of the thymus were primarily of interest to those working in the fields of pathologic anatomy, endo­ crinology, and pediatrics. However, during recent decades careful and refined histo­ logic studies of the organ have expanded our knowledge. It now seems certain that the thymus plays a central role in the immune system, and some of the substances pro­ duced by this organ are considered together under the collective term of "thymic hor­ mones". In clinical medicine (in particular endocrinology and pediatrics, as well as surgery and radiologic oncology), the startling advances that have taken place in radiologic diagnostics with the advent of new imaging procedures such as computed tomography and magnetic resonance imaging have provided fresh impetus in the search for effec­ tive treatments for hyperplasia, tumors, and tumor-like changes of the thymus. Normal variants of the thymus, which lies concealed within the anterior superior mediastinum, have been recorded, and pathologic changes such as primary or secondary tumors can now be analyzed and correctly diagnosed.