From the early demise of Trent Lott at the hands of bloggers to the agonized scream of Howard Dean; from Daily Kos and the blogosphere to the rise of Twitter and Facebook, politics and new media have co-existed and evolved in rapid succession. Here, an academic and practitioner team up to consider how new and old media technologies mix with combustible politics to determine, in real time, the shape of the emerging political order. Our political moment shares with other realigning periods the sense that political parties are failing to address the public interest. In an era defined by the collapse of the political center, extreme income inequality, rapidly changing demography, and new methods of communicating and organizing, a second-generation online progressive movement fueled by email and social media is coming into its own. In this highly readable text, the authors – one a scholar of Internet politics, the other a leading voice of the first generation netroots – draw on unique data and on-the-ground experience to answer key questions at the core of our tumultuous politics: How has Internet activism changed in form and function? How have the left and right changed with it? How does this affect American political power?
Optical frequency combs (OFC) have revolutionized various applications in applied and fundamental sciences that rely on the determination of absolute optical frequencies and frequency differences. The latter requires only stabilization of the spectral distance between the individual comb lines of the OFC, allowing to tailor and reduce system complexity of the OFC generator (OFCG). One such application is the quantum test of the universality of free fall within the QUANTUS experimental series. Within the test, the rate of free fall of two atomic species, Rb and K, in micro-gravity will be compared. The aim of this thesis was the development of a highly compact, robust, and space-suitable diode laser-based OFCG with a mode-locked optical spectrum in the wavelength range around 780 nm. A diode laser-based OFCG was developed, which exceeds the requirements with a spectral bandwidth > 16 nm at 20 dBc, a comb line optical power > 650 nW (at 20 dBc), a pulse repetition rate of 3.4 GHz, and an RF linewidth of the free-running pulse repetition rate < 10 kHz. To realize a proof-of-concept demonstrator module, the diode laser-based OFCG was hybrid-integrated into a space-suitable technology platform that has been developed for future QUANTUS experiments. Proof of sufficient RF stability of the OFCG was provided by stabilizing the pulse repetition rate to an external RF reference. This resulted in a stabilized pulse repetition rate with an RF linewidth smaller than 1.4 Hz (resolution limited), thus exceeding the requirement. The developed diode laser-based OFCG represents an important step towards an improved comparison of the rate of free fall of Rb and K quantum gases within the QUANTUS experiments in micro-gravity.
In The American South: A History, Fifth Edition, William J. Cooper, Jr. and Thomas E. Terrill demonstrate their belief that it is impossible to divorce the history of the South from the history of the United States. The authors' analysis underscores the complex interaction between the South as a distinct region and the South as an inescapable part of America. Cooper and Terrill show how the resulting tension has often propelled section and nation toward collision. In supporting their thesis, the authors draw on the tremendous amount of profoundly new scholarship in Southern history. Each volume includes a substantial bibliographical essay—completely updated for this edition—which provides the reader with a guide to literature on the history of the South. This volume contains updated chapters, and tables.
Essentials of Occupational Health Psychology provides a thorough overview of Occupational Health Psychology (OHP) with a focus on empowering readers to take appropriate and reasoned action to address a wide variety of worker health, safety, and well-being challenges that are present in working situations all over the world. Although relatively new as an area of specialization, OHP research and intervention efforts are already having major impacts on the way work is done around the world. Each of the twelve chapters in Essentials of Occupational Health Psychology addresses an essential aspect of OHP, with a consistent emphasis on putting what is known about that area into practice. Topics include essential background information regarding the history of OHP and major areas of OHP research and practice, such as work-related stress and recovery, psychological and physical demands and resources, interpersonal mistreatment, work and nonwork role dynamics, and safety. Each chapter features a discussion of why these topics are important to workers and organizations, as well as pertinent evaluation and/or intervention recommendations to help readers better understand what they can do to improve worker health, safety, and well-being, and how to convince others of the value of such efforts. Additional supplements within each chapter include a set of targeted learning objectives to help structure student reading and in-class discussion, focused discussion questions, pertinent media resources to provide current examples of these topics, and professional profiles based on interviews conducted by the authors with fourteen well-known and widely respected OHP researchers and practitioners. Essentials of Occupational Health Psychology is valuable to graduate and advanced undergraduate students as well as working professionals who are interested in learning how to manage work environments that support worker health, safety, and well-being. The chapters in this text could also provide supplemental reading for training and development workshops for professionals in related disciplines who could benefit from a better understanding of the psychology associated with work experiences.
Recent advances in microfabrication technologies have enabled the development of entirely new classes of small-scale devices with applications in fields ranging from biomedicine, to wireless communication and computing, to reconnaissance, and to augmentation of human function. In many cases, however, what these devices can actually accomplish is limited by the low energy density of their energy storage and conversion systems. This breakthrough book brings together in one place the information necessary to develop the high energy density combustion-based power sources that will enable many of these devices to realize their full potential. Engineers and scientists working in energy-related fields will find: • An overview of the fundamental physics and phenomena of microscale combustion; • Presentations of the latest modeling and simulation techniques for gasphase and catalytic micro-reactors; • The latest results from experiments in small-scale liquid film, microtube, and porous combustors, micro-thrusters, and micro heat engines; • An assessment of the additional research necessary to develop compact and high energy density energy conversion systems that are truly practical.
A chemocentric view of the molecular structures of antibiotics, their origins, actions, and major categories of resistance Antibiotics: Challenges, Mechanisms, Opportunities focuses on antibiotics as small organic molecules, from both natural and synthetic sources. Understanding the chemical scaffold and functional group structures of the major classes of clinically useful antibiotics is critical to understanding how antibiotics interact selectively with bacterial targets. This textbook details how classes of antibiotics interact with five known robust bacterial targets: cell wall assembly and maintenance, membrane integrity, protein synthesis, DNA and RNA information transfer, and the folate pathway to deoxythymidylate. It also addresses the universe of bacterial resistance, from the concept of the resistome to the three major mechanisms of resistance: antibiotic destruction, antibiotic active efflux, and alteration of antibiotic targets. Antibiotics also covers the biosynthetic machinery for the major classes of natural product antibiotics. Authors Christopher Walsh and Timothy Wencewicz provide compelling answers to these questions: What are antibiotics? Where do antibiotics come from? How do antibiotics work? Why do antibiotics stop working? How should our limited inventory of effective antibiotics be addressed? Antibiotics is a textbook for graduate courses in chemical biology, pharmacology, medicinal chemistry, and microbiology and biochemistry courses. It is also a valuable reference for microbiologists, biological and natural product chemists, pharmacologists, and research and development scientists.
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