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405 result(s) for "Ritchie, Donald A"
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Washington's Iron Butterfly
Had Elizabeth \"Bess\" Clements Abell (1933–2020) been a boy, she would likely have become a politician like her father, Earle C. Clements. Effectively barred from office because of her gender, she forged her own path by helping family friends Lyndon and Lady Bird Johnson. Abell's Secret Service code name, \"Iron Butterfly,\" exemplified her graceful but firm management of social life in the Johnson White House. After Johnson's administration ended, she maintained her importance in Washington, DC, serving as chief of staff to Joan Mondale and cofounding a public relations company. Donald A. Ritchie and Terry L. Birdwhistell draw on Abell's own words and those of others known to her to tell her remarkable story. Focusing on her years working for the Johnson campaign and her time in the White House, this engaging oral history provides a window into Abell's life as well as an insider's view of the nation's capital during the tumultuous 1960s.
Distribution, diversity and evolution of the bacterial mercury resistance (mer) operon
Abstract Mercury and its compounds are distributed widely across the earth. Many of the chemical forms of mercury are toxic to all living organisms. However, bacteria have evolved mechanisms of resistance to several of these different chemical forms, and play a major role in the global cycling of mercury in the natural environment. Five mechanisms of resistance to mercury compounds have been identified, of which resistance to inorganic mercury (HgR) is the best understood, both in terms of the mechanisms of resistance to mercury and of resistances to heavy metals in general. Resistance to inorganic mercury is encoded by the genes of the mer operon, and can be located on transposons, plasmids and the bacterial chromosome. Such systems have a worldwide geographical distribution, and furthermore, are found across a wide range of both Gram-negative and Gram-positive bacteria from both natural and clinical environments. The presence of mer genes in bacteria from sediment cores suggest that mer is an ancient system. Analysis of DNA sequences from mer operons and genes has revealed genetic variation both in operon structure and between individual genes from different mer operons, whilst analysis of bacteria which are sensitive to inorganic mercury has identified a number of vestigial non-functional operons. It is hypothesised that mer, due to its ubiquity with respect to geographical location, environment and species range, is an ancient system, and that ancient bacteria carried genes conferring resistance to mercury in response to increased levels of mercury in natural environments, perhaps resulting from volcanic activity. Models for the evolution of both a basic mer operon and for the Tn21-related family of mer operons and transposons are suggested. The study of evolution in bacteria has recently become dominated by the generation of phylogenies based on 16S rRNA genes. However, it is important not to underestimate the roles of horizontal gene transfer and recombinational events in evolution. In this respect mer is a suitable system for evaluating phylogenetic methods which incorporate the effects of horizontal gene transfer. In addition, the mer operon provides a model system in the study of environmental microbiology which is useful both as an example of a genotype which is responsive to environmental pressures and as a generic tool for the development of new methodology for the analysis of bacterial communities in natural environments.
The Congress of the United States : a student companion
This completely revised and updated third edition to the Young Oxford Companion to the Congress of the United States (1994) and The Congress of the United States: A Student Companion, second edition (2001) contains more than 200 articles, arranged alphabetically, that provide a concise and easy-to-use guide to the people, issues, vocabulary, and activities of the U.S. Senate and House of Representatives.
Doing oral history
Doing Oral History is considered the premier guidebook to oral history, used by professional oral historians, public historians, archivists, and genealogists as a core text in college courses and throughout the public history community. The recent development of digital audio and video recording technology has continued to alter the practice of oral history, making it even easier to produce and disseminate quality recordings. At the same time, digital technology has complicated the preservation of the recordings, past and present. This basic manual offers detailed advice for setting up an oral history project, conducting interviews and using oral history for research, making video recordings, preserving oral history collections in archives and libraries, and teaching and presenting oral history.
Reporting from Washington : the history of the Washington press corps
Donald Ritchie here offers a vibrant chronicle of news coverage in our nation’s capital, from the early days of radio and print reporting and the heyday of the wire services to the brave new world of the Internet. Beginning with 1932, when a newly elected FDR energized the sleepy capital, Ritchie highlights the dramatic changes in journalism that have occurred in the last seven decades. We meet legendary columnists--including Walter Lippmann, Joseph Alsop, and Drew Pearson (voted “the best ratcatching reporter in town”)--as well as the great investigative reporters, from Paul Y. Anderson (who broke the Teapot Dome scandal) to the two green Washington Post reporters who launched the political story of the decade--Woodward and Bernstein. We read of the rise of radio news--fought tooth and nail by the print barons--and of such pioneers as Edward R. Murrow, H. V. Kaltenborn, and Elmer Davis. Ritchie also offers a vivid history of TV news, from the early days of Meet the Press, to Huntley and Brinkley and Walter Cronkite, to the cable revolution led by C-SPAN and CNN. In addition, he compares political news on the Internet to the alternative press of the ‘60s and ‘70s; describes how black reporters slowly broke into the white press corps (helped mightily by FDR’s White House); discusses path-breaking woman reporters such as Sarah McClendon and Helen Thomas, and much more. From Walter Winchell to Matt Drudge, the people who cover Washington politics are among the most colorful and influential in American news. Reporting from Washington offers an unforgettable portrait of these figures as well as of the dramatic changes in American journalism in the twentieth century.
Distribution, diversity and evolution of the bacterial mercury resistance ( mer) operon
Mercury and its compounds are distributed widely across the earth. Many of the chemical forms of mercury are toxic to all living organisms. However, bacteria have evolved mechanisms of resistance to several of these different chemical forms, and play a major role in the global cycling of mercury in the natural environment. Five mechanisms of resistance to mercury compounds have been identified, of which resistance to inorganic mercury (Hg R) is the best understood, both in terms of the mechanisms of resistance to mercury and of resistances to heavy metals in general. Resistance to inorganic mercury is encoded by the genes of the mer operon, and can be located on transposons, plasmids and the bacterial chromosome. Such systems have a worldwide geographical distribution, and furthermore, are found across a wide range of both Gram-negative and Gram-positive bacteria from both natural and clinical environments. The presence of mer genes in bacteria from sediment cores suggest that mer is an ancient system. Analysis of DNA sequences from mer operons and genes has revealed genetic variation both in operon structure and between individual genes from different mer operons, whilst analysis of bacteria which are sensitive to inorganic mercury has identified a number of vestigial non-functional operons. It is hypothesised that mer, due to its ubiquity with respect to geographical location, environment and species range, is an ancient system, and that ancient bacteria carried genes conferring resistance to mercury in response to increased levels of mercury in natural environments, perhaps resulting from volcanic activity. Models for the evolution of both a basic mer operon and for the Tn 21-related family of mer operons and transposons are suggested. The study of evolution in bacteria has recently become dominated by the generation of phylogenies based on 16S rRNA genes. However, it is important not to underestimate the roles of horizontal gene transfer and recombinational events in evolution. In this respect mer is a suitable system for evaluating phylogenetic methods which incorporate the effects of horizontal gene transfer. In addition, the mer operon provides a model system in the study of environmental microbiology which is useful both as an example of a genotype which is responsive to environmental pressures and as a generic tool for the development of new methodology for the analysis of bacterial communities in natural environments.