Thomas H. Lee – författare

Since the 1950s, the death rate from heart attacks has plunged from 35 percent to about 5 percent—and fatalistic attitudes toward this disease and many others have faded into history. Much of the improved survival and change in attitudes can be traced to the work of Eugene Braunwald, MD. In the 1960s, he proved that myocardial infarction was not a “bolt from the blue” but a dynamic process that plays out over hours and thus could be altered by treatment. By redirecting cardiology from passive, risk-averse observation to active intervention, he helped transform not just his own field but the culture of American medicine.Braunwald’s personal story demonstrates how the forces of history affected the generation of researchers responsible for so many medical advances in the second half of the twentieth century. In 1938 Nazi occupiers forced his family to flee Vienna for Brooklyn. Because of Jewish quotas in medical schools, he was the last person admitted to his class, but went on to graduate number one. When the Doctor Draft threatened to interrupt his medical training during the Korean War, he joined the National Institutes of Health instead of the Navy, and there he began the research that made him the most influential cardiologist of his time.In Eugene Braunwald and the Rise of Modern Medicine, Thomas H. Lee offers insights that only authoritative firsthand interviews can provide, to bring us closer to this iconic figure in modern medicine.

The motivation for this book was the recognition by two of us (RL and TL) that, despite our training as cardiologists, we had a limited understand­ ing of many aspects of the surgical management of our patients. Conversa­ tions with other cardiologists at our own institution and at other medical centers around the country convinced us that many of our colleagues shared our uncertainty about the details of surgical procedures and the factors that determine decisions in the perioperative period. As surgical techniques continue to evolve, this knowledge gap can become only more severe. We therefore compiled information about cardiac surgery that might be useful for cardiologists and other nonsurgeons. We asked cardiologists what questions they would like to ask their surgical colleagues and provided these questions to the authors of the chapters. Thus, the goal of these chapters is to help nonsurgeons answer their own questions about common cardiac procedures, and to help prepare these physicians to address the questions raised by their patients. In addition, we hope that insight into these issues will improve communication between surgeons and their col­ leagues-and, ultimately, lead to better patient care. Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi 1 Chapter 1. Anesthesia for Cardiac Surgery JONATHAN B. MARK Chapter 2. Cardiopulmonary Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 DANIEL FITZGERALD Chapter 3. Myocardial Protection inCardiac Surgery . . . . . . . . . . . . . . . . . . 23 JEFFREY SELL Chapter 4. Coronary Artery Bypass Grafting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 HENDRICK B. BARNER Chapter 5. Surgery for Left Ventricular Outflow Obstruction: Aortic Valve Replacement and Myomectomy . . . . . . . . . . . . . .

Based on a profoundly important six-year study by the Center for the Quality of Management (CQM), "Integrated Management Systems" shows how successful organizations accomplish something unbelievably powerful: Creating their own particular ways of executing the scientific method. The authors worked with the cooperation of some of America's largest companies - Teradyne, Hewlett-Packard, Eastman Chemical, Ritz-Carlton -- and of non-profit organizations including top hospitals and the U.S. Navy. They were surprised to find how radically successful systems differed from one organization to the next. Yet the core of each was universal: Each organization had designed a system that gathered data about the organization's particular problems, developed theories, tested the theories, and finally documented and shared the results throughout the organization. Each successful organization's methods were unique much as the methods of each successful discipline within the sciences are unique. But less successful organizations had nothing comparable. And the processes through which the leaders in these organizations had gotten them on the right path had a great deal in common.

Modern wireless communications hardware is underpinned by RF and microwave design techniques. This insightful book contains a wealth of circuit layouts, design tips, and practical measurement techniques for building and testing practical gigahertz systems. The book covers everything you need to know to design, build, and test a high-frequency circuit. Microstrip components are discussed, including tricks for extracting good performance from cheap materials. Connectors and cables are also described, as are discrete passive components, antennas, low-noise amplifiers, oscillators, and frequency synthesizers. Practical measurement techniques are presented in detail, including the use of network analyzers, sampling oscilloscopes, spectrum analyzers, and noise figure meters. Throughout the focus is practical, and many worked examples and design projects are included. There is also a CD-ROM that contains a variety of design and analysis programs. The book is packed with indispensable information for students taking courses on RF or microwave circuits and for practising engineers.

This book, first published in 2004, is an expanded and thoroughly revised edition of Tom Lee's acclaimed guide to the design of gigahertz RF integrated circuits. A new chapter on the principles of wireless systems provides a bridge between system and circuit issues. The chapters on low-noise amplifiers, oscillators and phase noise have been significantly expanded. The chapter on architectures now contains several examples of complete chip designs, including a GPS receiver and a wireless LAN transceiver, that bring together the theoretical and practical elements involved in producing a prototype chip. Every section has been revised and updated with findings in the field and the book is packed with physical insights and design tips, and includes a historical overview that sets the whole field in context. With hundreds of circuit diagrams and homework problems this is an ideal textbook for students taking courses on RF design and a valuable reference for practising engineers.

There has been an increasing demand for Wireless Local Area Network (WLAN) systems. New frequency bands are allocated and new standards are being developed to accommodate higher data rates. The fast trend of CMOS scaling has provided an opportunity for the development of low cost integrated WLAN systems. Frequency synthesizers are one of the main building blocks of wireless transceivers. The high frequency digital frequency dividers in a phase-locked loop (PLL) based frequency synthesizer are among the most challenging blocks to design and usually account for a large percentage of the synthesizer total power dissipation. The successful design and integration of a high frequency PLL demands a comprehensive understanding of wireless systems, RF circuits, and loop stability issues. This title starts with an overview of WLAN systems and reviews the WLAN market and standards. It then studies PLLs as an essential building block of WLAN receivers, and provides guidelines and engineering recipes for the design of loop filters in high frequency PLLs.Additionally, the book investigates different analogue and digital frequency division techniques and introduces injection-locked frequency dividers (ILFDs) as an alternative for conventional frequency dividers. Finally, the book demonstrates a successful design of a fully integrated CMOS frequency synthesizer for a 5 GHz WLAN receiver. Multi-GHZ Frequency Synthesis & Division will be of interest to RF and high-speed analog circuit designers and students as well as wireless engineers.

The tremendous growth in wireless and mobile communications has placed stringent requirements on channel spacing and, by implication, on the phase noise of oscillators. Compounding the challenge has been a recent drive toward implementations of transceivers in CMOS, whose inferior l/f noise performance has usually been thought to disqualify it from use in all but the lowest-performance oscillators. Low noise oscillators are also highly desired in the digital world. The continued drive toward higher clock frequencies translates into a demand for ever-decreasing jitter. There is a need for a deep understanding of the fundamental mechanisms governing the process by which device, substrate, and supply noise turn into jitter and phase noise. Existing models generally offer only qualitative insights, however, and it has not always been clear why they are not quantitatively correct. This text offers a time-variant phase noise model for low noise oscillators. By discarding the implicit assumption of time-invariance underlying many other approaches, this model is capable of making quantitative predictions of the phase noise and jitter of different types of oscillators.It is able to attribute a definite amount of phase noise to every noise source in the circuit. Because of its time-variant nature, the model also takes into account the effect of cyclostationary noise sources in a natural way. It details the precise mechanism by which low frequency noise, such as l/f noise, upconverts into close-in phase noise. An important understanding is that rise and fall time symmetry controls such upconversion. More importantly, it suggests practical methods for suppressing this upconversion, so that good oscillators can be built in technologies with notoriously poor l/f noise performance (such as CMOS or GaAs MESFET). The book should be of interest to both analog and digital circuit as well as RF circuit designers.

The primary goal of this work is to explore techniques for implementing wireless receivers in an inexpensive complementary metal-oxide-semiconductor (CMOS) technology. Although the techniques developed apply somewhat generally across many classes of receivers, the specific focus of this work is on the Global Positioning System (GPS). Because GPS provides a convenient vehicle for examining CMOS receivers, a brief overview of the GPS system and its implications for consumer electronics is presented. The GPS system comprises 24 satellites in low earth orbit that continuously broadcast their position and local time. Through satellite range measurements, a receiver can determine its absolute position and time to within about 100m anywhere on Earth, as long as four satellites are within view. The deployment of this satellite network was completed in 1994 and, as a result, consumer markets for GPS navigation capabilities are beginning to blossom. Examples include automotive or maritime navigation, intelligent hand-off algorithms in cellular telephony, and cellular emergency services, to name a few.Of particular interest in the context of this book are embedded GPS applications where a GPS receiver is just one component of a larger system. Widespread proliferation of embedded GPS capability will require receivers that are compact, cheap and low-power.

Harness the power of social capital to improve the efficacy and efficiency of healthcare organizations Written by Thomas Lee, Chief Medical Officer at Press Ganey, Social Capital in Healthcare describes a new and powerful framework for improving healthcare, arguing that managers should approach the work of building trust, teamwork, and high reliability with the same intensity and discipline as CFOs use when managing the finances of their organizations. Lee's powerful framework integrates management priorities such as safety, quality, patient experience, and workforce resilience/burnout/loyalty, demonstrating through data that these “silos” are in fact intertwined, and the work of improving them is best taken on with a single focus: improving social capital. In this book, readers will learn about: Key social capital themes in healthcare, including trust, respect, connectedness, and teamworkThe necessity of social capital in healthcare due to changes in medicine, patients, and societyBuilding social capital through transitivity, reciprocity, bridging connections, and driving the right valuesSocial capital initiatives at institutions such as the Mayo Clinic, Houston Methodist, and Vanderbilt University Medical CenterDrawing upon deeply respected work from sociology, psychology, and business strategy, Social Capital in Healthcare earns a well-deserved spot on the bookshelves of all forward-thinking healthcare executives, managers, and consultants.

Improving the performance of the power amplifier is the most pressing problem facing designers of modern radio-frequency (RF) transceivers. Linearity and power efficiency of the transmit path are of utmost importance, and the power amplifier has proven to be the bottleneck for both. High linearity enables transmission at the highest data rates for a given channel bandwidth, and power efficiency prolongs battery lifetime in portable units and reduces heat dissipation in high-power transmitters. Cartesian feedback is a power amplifier linearization technique that acts to soften the tradeoff between power efficiency and linearity in power amplifiers. Despite its compelling, fundamental advantages, the technique has not enjoyed widespread acceptance because of certain implementation difficulties. Feedback Linearization of RF Power Amplifiers introduces new techniques for overcoming the challenges faced by the designer of a Cartesian feedback system. The theory of the new techniques are described and analyzed in detail. The book culminates with the results of the first known fully integrated Cartesian feedback power amplifier system, whose design was enabled by the techniques described. Feedback Linearization of RF Power Amplifiers is a valuable reference work for engineers in the telecommunications industry, industry researchers, academic researchers.

The motivation for this book was the recognition by two of us (RL and TL) that, despite our training as cardiologists, we had a limited understand­ ing of many aspects of the surgical management of our patients. Conversa­ tions with other cardiologists at our own institution and at other medical centers around the country convinced us that many of our colleagues shared our uncertainty about the details of surgical procedures and the factors that determine decisions in the perioperative period. As surgical techniques continue to evolve, this knowledge gap can become only more severe. We therefore compiled information about cardiac surgery that might be useful for cardiologists and other nonsurgeons. We asked cardiologists what questions they would like to ask their surgical colleagues and provided these questions to the authors of the chapters. Thus, the goal of these chapters is to help nonsurgeons answer their own questions about common cardiac procedures, and to help prepare these physicians to address the questions raised by their patients. In addition, we hope that insight into these issues will improve communication between surgeons and their col­ leagues-and, ultimately, lead to better patient care. Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi 1 Chapter 1. Anesthesia for Cardiac Surgery JONATHAN B. MARK Chapter 2. Cardiopulmonary Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 DANIEL FITZGERALD Chapter 3. Myocardial Protection inCardiac Surgery . . . . . . . . . . . . . . . . . . 23 JEFFREY SELL Chapter 4. Coronary Artery Bypass Grafting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 HENDRICK B. BARNER Chapter 5. Surgery for Left Ventricular Outflow Obstruction: Aortic Valve Replacement and Myomectomy . . . . . . . . . . . . . .

It is hardly a revelation to note that wireless and mobile communications have grown tremendously during the last few years. This growth has placed stringent requi- ments on channel spacing and, by implication, on the phase noise of oscillators. C- pounding the challenge has been a recent drive toward implementations of transceivers in CMOS, whose inferior 1/f noise performance has usually been thought to disqualify it from use in all but the lowest-performance oscillators. Low noise oscillators are also highly desired in the digital world, of course. The c- tinued drive toward higher clock frequencies translates into a demand for ev- decreasing jitter. Clearly, there is a need for a deep understanding of the fundamental mechanisms g- erning the process by which device, substrate, and supply noise turn into jitter and phase noise. Existing models generally offer only qualitative insights, however, and it has not always been clear why they are not quantitatively correct.

In the past 10 years extensive effort has been dedicated to commercial wireless local area network (WLAN) systems. Despite all these efforts, however, none of the existing systems has been successful, mainly due to their low data rates. The increasing demand for WLAN systems that can support data rates in excess of 20 Mb/s enticed the FCC to create an unlicensed national information infrastructure (U–NII) band at 5 GHz. This frequency band provides 300 MHz of spectrum in two segments: a 200 MHz(5.15–5.35 GHz) and a 100 MHz (5.725–5.825 GHz) frequency band. This newly released spectrum, and the fast trend of CMOS scaling, provide an opportunity to design WLAN systems with high data rate and low cost. One of the existing standards at 5 GHz is the European high performance radio LAN (HIPERLAN) standard that supports data rates as high as 20 Mb/s. One of the main building blocks of each wireless system is the f- quency synthesizer. Phase–locked loops (PLLs) are universally used to design radio frequency synthesizers. Reducing the power consumption of the frequency dividers of a PLL has always been a challenge. In this book, we introduce an alternative solution for conventional flipflop based xiv MULTI–GHZ FREQUENCY SYNTHESIS & DIVISION frequency dividers. An injection–locked frequency divider (ILFD) takes advantage of the narrowband nature of the wireless systems and employs resonators to trade off bandwidth for power.

It is hardly a profound observation to note that we remain in the midst of a wireless revolution. In 1998 alone, over 150 million cell phones were sold worldwide, representing an astonishing 50% increase over the previous year. Maintaining such a remarkable growth rate requires constant innovation to decrease cost while increasing performance and functionality. Traditionally, wireless products have depended on a mixture of semicond- tor technologies, spanning GaAs, bipolar and BiCMOS, just to name a few. A question that has been hotly debated is whether CMOS could ever be suitable for RF applications. However, given the acknowledged inferiority of CMOS transistors relative to those in other candidate technologies, it has been argued by many that “CMOS RF” is an oxymoron, an endeavor best left cloistered in the ivory towers of academia. In rebuttal, there are several compelling reasons to consider CMOS for wi- less applications. Aside from the exponential device and density improvements delivered regularly by Moore’s law, only CMOS offers a technology path for integrating RF and digital elements, potentially leading to exceptionally c- pact and low-cost devices. To enable this achievement, several thorny issues need to be resolved. Among these are the problem of poor passive com- nents, broadband noise in MOSFETs, and phase noise in oscillators made with CMOS. Beyond the component level, there is also the important question of whether there are different architectural choices that one would make if CMOS were used, given the different constraints.

Improving the performance of the power amplifier is the most pressing problem facing designers of modern radio-frequency (RF) transceivers. Linearity and power efficiency of the transmit path are of utmost importance, and the power amplifier has proven to be the bottleneck for both. High linearity enables transmission at the highest data rates for a given channel bandwidth, and power efficiency prolongs battery lifetime in portable units and reduces heat dissipation in high-power transmitters. Cartesian feedback is a power amplifier linearization technique that acts to soften the tradeoff between power efficiency and linearity in power amplifiers. Despite its compelling, fundamental advantages, the technique has not enjoyed widespread acceptance because of certain implementation difficulties. Feedback Linearization of RF Power Amplifiers introduces new techniques for overcoming the challenges faced by the designer of a Cartesian feedback system. The theory of the new techniques are described and analyzed in detail. The book culminates with the results of the first known fully integrated Cartesian feedback power amplifier system, whose design was enabled by the techniques described. Feedback Linearization of RF Power Amplifiers is a valuable reference work for engineers in the telecommunications industry, industry researchers, academic researchers.

Help your team excel.Go from being a good practitioner to being an extraordinary leader of healthcare professionals.If you read nothing else on leadership, read these articles. We've combed through hundreds of Harvard Business Review articles and selected the most important ones for healthcare leaders to help you and your team excel, maximize performance, and live into your mission.Leading experts, such as Thomas H. Lee, Daniel Goleman, Peter F. Drucker, John P. Kotter, and Amy C. Edmondson, provide the insights and advice you need to:Understand the difference between managers and leadersMotivate others to excelCreate successful cross-functional teams on the flyMaintain your identity and values as a clinician as you move into an organizational leadership roleHave an impact not only on your organization but on the surrounding systemWork in complex environments where authority is diffuseLead effectively in times of rapid changeThis collection of articles includes "What Makes a Leader?," by Daniel Goleman; "What Makes an Effective Executive," by Peter F. Drucker; "What Leaders Really Do," by John P. Kotter; "Level 5 Leadership: The Triumph of Humility and Fierce Resolve," by Jim Collins; "The Work of Leadership," by Ronald A. Heifetz and Donald L. Laurie; "Teamwork on the Fly," by Amy C. Edmondson; "Who Has the D? How Clear Decision Roles Enhance Organizational Performance," by Paul Rogers and Marcia Blenko; "In Praise of the Incomplete Leader," by Deborah Ancona, Thomas W. Malone, Wanda J. Orlikowski, and Peter M. Senge; "Using the Balanced Scorecard as a Strategic Management System," by Robert S. Kaplan and David P. Norton; "Health Care's Service Fanatics," by James I. Merlino and Ananth Raman; and "Engaging Doctors in the Health Care Revolution," by Thomas H. Lee and Toby Cosgrove.

Help your team excel.Go from being a good practitioner to being an extraordinary leader of healthcare professionals.If you read nothing else on leadership, read these articles. We've combed through hundreds of Harvard Business Review articles and selected the most important ones for healthcare leaders to help you and your team excel, maximize performance, and live into your mission.Leading experts, such as Thomas H. Lee, Daniel Goleman, Peter F. Drucker, John P. Kotter, and Amy C. Edmondson, provide the insights and advice you need to:Understand the difference between managers and leadersMotivate others to excelCreate successful cross-functional teams on the flyMaintain your identity and values as a clinician as you move into an organizational leadership roleHave an impact not only on your organization but on the surrounding systemWork in complex environments where authority is diffuseLead effectively in times of rapid changeThis collection of articles includes "What Makes a Leader?," by Daniel Goleman; "What Makes an Effective Executive," by Peter F. Drucker; "What Leaders Really Do," by John P. Kotter; "Level 5 Leadership: The Triumph of Humility and Fierce Resolve," by Jim Collins; "The Work of Leadership," by Ronald A. Heifetz and Donald L. Laurie; "Teamwork on the Fly," by Amy C. Edmondson; "Who Has the D? How Clear Decision Roles Enhance Organizational Performance," by Paul Rogers and Marcia Blenko; "In Praise of the Incomplete Leader," by Deborah Ancona, Thomas W. Malone, Wanda J. Orlikowski, and Peter M. Senge; "Using the Balanced Scorecard as a Strategic Management System," by Robert S. Kaplan and David P. Norton; "Health Care's Service Fanatics," by James I. Merlino and Ananth Raman; and "Engaging Doctors in the Health Care Revolution," by Thomas H. Lee and Toby Cosgrove.