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  1. Book: Richard J. Davidson, in first person

    Davidson, Richard J / Walker, Larry / Garber, Kim M

    an oral history

    (Hospital administration oral history collection)

    2010  

    Institution American Hospital Association.
    Center for Hospital and Healthcare Administration History.
    Health Research and Educational Trust
    Author's details interviewed by Larry Walker on November 23, 2009 ; edited by Kim M. Garber ; sponsored by American Hospital Association, Center for Hospital and Healthcare Administration History and Health Research & Educational Trust
    Series title Hospital administration oral history collection
    MeSH term(s) Hospital Administrators ; History, 20th Century ; History, 21st Century ; Hospital Administration/history ; Organizations/history
    Keywords United States
    Language English
    Size 34 p. :, col. ill., ports. ;, 29 cm.
    Publisher Health Research & Educational Trust
    Publishing place Chicago, Ill
    Document type Book
    Database Catalogue of the US National Library of Medicine (NLM)

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  2. Book: Richard Ford

    Walker, Elinor Ann

    (Twayne's United States authors series ; 718)

    2000  

    Author's details Elinor Ann Walker
    Series title Twayne's United States authors series ; 718
    Language English
    Size XIII, 226 S, Ill
    Publisher Twayne
    Publishing place New York, NY
    Document type Book
    Note Literaturverz. S. 215 - 221
    ISBN 0805716793 ; 9780805716795
    Database Former special subject collection: coastal and deep sea fishing

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  3. Article: David Walker. Reduce costs first, then expand coverage. Interview by Richard L. Clarke.

    Walker, David

    Healthcare financial management : journal of the Healthcare Financial Management Association

    2009  Volume 63, Issue 10, Page(s) 44–8, 50

    MeSH term(s) Cost Control ; Health Care Costs ; Health Care Reform/legislation & jurisprudence ; History, 20th Century ; History, 21st Century ; Insurance Coverage ; Insurance, Health/legislation & jurisprudence ; United States
    Language English
    Publishing date 2009-10
    Publishing country United States
    Document type Biography ; Historical Article ; Interview ; Portraits
    ZDB-ID 605617-9
    ISSN 0735-0732 ; 0018-5639
    ISSN 0735-0732 ; 0018-5639
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.B 1763: Show issues Location:
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    Zs.MO 441: Show issues

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  4. Book ; Conference proceedings: The 2018 Vaccines Against Shigella and Enterotoxigenic Escherichia Coli (VASE) Conference

    Walker, Richard I.

    (Vaccine ; volume 37, issue 34 (7 August 2019) = special issue)

    2019  

    Event/congress Vaccines Against Shigella and Enterotoxigenic Escherichia Coli (VASE) Conference (2018, MexikoStadt)
    Author's details guest editors: Richard I. Walker, Mark S. Riddle, Allison Clifford
    Series title Vaccine ; volume 37, issue 34 (7 August 2019) = special issue
    Collection
    Language English
    Size Seite 4767-4822
    Publisher Elsevier
    Publishing place Amsterdam
    Publishing country Netherlands
    Document type Book ; Conference proceedings
    HBZ-ID HT020254522
    Database Catalogue ZB MED Medicine, Health

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    In stock of ZB MED Cologne/Königswinter

    Shelf markLoan statusLocation
    Zs A 1930 -37- not available for loan Zeitschriften-Lesesaal

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  5. Book ; Conference proceedings: The 2016 Vaccines Against Shigella and Enterotoxigenic Escherichia coli (VASE) Conference

    Walker, Richard I.

    (Vaccine ; volume 35, issue 49, part A = special issue (14 December 2017))

    2017  

    Event/congress Vaccines Against Shigella and Enterotoxigenic Escherichia coli (VASE) Conference (2016, WashingtonDC)
    Author's details guest editors: Richard I. Walker, Edwin V. Oaks
    Series title Vaccine ; volume 35, issue 49, part A = special issue (14 December 2017)
    Collection
    Language English
    Size Seite 6775-6818, Diagramme
    Publisher Elsevier
    Publishing place Amsterdam
    Publishing country Netherlands
    Document type Book ; Conference proceedings
    Note Tagungsdaten: June 28-30, 2016, Washington, DC
    HBZ-ID HT019550704
    Database Catalogue ZB MED Medicine, Health

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    Shelf markLoan statusLocation
    Zs A 1930 -35- not available for loan Zeitschriften-Lesesaal

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  6. Article: Misjudging drinking water quality risk: Adopting a barrier approach for meaningful risk assessment to address latent risks.

    Walker, Richard

    Journal of water and health

    2023  Volume 21, Issue 10, Page(s) 1404–1420

    Abstract: The water quality risk assessment is the foundation for every drinking Water Safety Plan. The need to conform with a 'Corporate' risk assessment model commonly dominated by asset management frequency data can cause misjudgement of microbial risk. Well- ... ...

    Abstract The water quality risk assessment is the foundation for every drinking Water Safety Plan. The need to conform with a 'Corporate' risk assessment model commonly dominated by asset management frequency data can cause misjudgement of microbial risk. Well-performed risk assessments should identify potential risks. Risk assessments which place too much emphasis on historical evidence to demonstrate 'likelihood' of microbial contamination are unsuitable for drinking water quality because they fail to recognise 'latent' risks associated with absent or underperforming barriers to contamination. Most outbreaks occur when these 'latent' factors align to create a failure. Good risk assessments need to provide foresight. This is achieved if drinking water quality risk assessments are based on a 'barrier' approach. Where adequate and reliable multiple barriers to contamination are present the likelihood of a hazardous event should then be categorised as rare. Where barriers are absent, inadequate, or unreliable, then a higher likelihood is appropriate, depending on the nature and extent of the barrier shortfall. Practical examples show how the 'barrier' approach can be applied. The barrier risk assessment directly informs the operational monitoring programme, enabling regular confirmation that the challenge and barrier performance are consistent with the predictions of the risk assessment.
    MeSH term(s) Water Quality ; Water Supply ; Drinking Water ; Risk Assessment ; Disease Outbreaks
    Chemical Substances Drinking Water
    Language English
    Publishing date 2023-10-30
    Publishing country England
    Document type Journal Article
    ZDB-ID 2123845-5
    ISSN 1996-7829 ; 1477-8920
    ISSN (online) 1996-7829
    ISSN 1477-8920
    DOI 10.2166/wh.2023.077
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 7513: Show issues

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  7. Book ; Online: Molybdenum and sulphur isotope ratios of early Pleistocene sapropels of ODP Hole 160-969D, supplementary data to: Scheiderich, Kathleen; Zerkle, Aubrey L; Helz, George R; Farquhar, James; Walker, Richard J (2010): Molybdenum isotope, multiple sulfur isotope, and redox-sensitive element behavior in early Pleistocene Mediterranean sapropels. Chemical Geology, 279(3-4), 134-144

    Scheiderich, Kathleen / Farquhar, James / Helz, George R / Walker, Richard J / Zerkle, Aubrey L

    2010  

    Abstract: Organic-rich sediments (sapropels) deposited in the Mediterranean are presumed to have formed ...

    Abstract Organic-rich sediments (sapropels) deposited in the Mediterranean are presumed to have formed during periods of increased productivity, and/or deep water oxygen depletion, possibly including the development of sulfidic conditions (euxinia). Geochemical redox proxies (Re, Mo, Mo isotopes, V, Fe/Al, and multiple S isotopes) in 8 sapropels from the Pleistocene confirm water column euxinic conditions of varying intensity during sapropel deposition. These same proxies indicate an oxic origin for hemipelagic sediments deposited between sapropel-forming episodes.
    In one intensively sampled sapropel, deposited between 1.450 and 1.458 Ma, changing concentrations of organic carbon, Ba, Re, Mo, V, and Fe/Al track one another closely, reflecting coupling between water column euxinia and biological productivity. Multiple S isotope data from this sapropel suggest that the redox interface where oxidative sulfur cycling occurred was present in the sediments during hemipelagic sedimentation, but moved into the water column during sapropel deposition.
    Molybdenum isotopes of these 8 sapropels encompass a range of values (d98Mo = +0.2 to +1.7), but are all 98Mo-depleted relative to seawater (d98Mo = +2.3 per mil), suggesting that quantitative removal of Mo did not occur. This finding contrasts with modern Black Sea sediments. In general, Re/Mo ratios in sapropels are greater than in modern seawater, implying that the water column was not sufficiently sulfidic during sapropel-forming episodes to induce complete removal of both these elements. Surprisingly, the heaviest d98Mo values are found within hemipelagic sediments. Very few of the hemipelagic samples preserve the negative d98Mo values commonly associated with modern oxic marine sediments. Many of the hemipelagic samples also contained higher concentrations of Re and Mo than are common in oxic sediments. These features may be attributable to diffusion from the sapropels of a 98Mo-enriched component into the hemipelagic sediments.
    Language English
    Dates of publication 2010-9999
    Size Online-Ressource
    Publisher PANGAEA - Data Publisher for Earth & Environmental Science
    Publishing place Bremen/Bremerhaven
    Document type Book ; Online
    Note This dataset is supplement to doi:10.1016/j.chemgeo.2010.10.015
    DOI 10.1594/PANGAEA.780236
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  8. Article ; Online: Misjudging drinking water quality risk

    Richard Walker

    Journal of Water and Health, Vol 21, Iss 10, Pp 1404-

    Adopting a barrier approach for meaningful risk assessment to address latent risks

    2023  Volume 1420

    Abstract: The water quality risk assessment is the foundation for every drinking Water Safety Plan. The need to conform with a ‘Corporate’ risk assessment model commonly dominated by asset management frequency data can cause misjudgement of microbial risk. Well- ... ...

    Abstract The water quality risk assessment is the foundation for every drinking Water Safety Plan. The need to conform with a ‘Corporate’ risk assessment model commonly dominated by asset management frequency data can cause misjudgement of microbial risk. Well-performed risk assessments should identify potential risks. Risk assessments which place too much emphasis on historical evidence to demonstrate ‘likelihood’ of microbial contamination are unsuitable for drinking water quality because they fail to recognise ‘latent’ risks associated with absent or underperforming barriers to contamination. Most outbreaks occur when these ‘latent’ factors align to create a failure. Good risk assessments need to provide foresight. This is achieved if drinking water quality risk assessments are based on a ‘barrier’ approach. Where adequate and reliable multiple barriers to contamination are present the likelihood of a hazardous event should then be categorised as rare. Where barriers are absent, inadequate, or unreliable, then a higher likelihood is appropriate, depending on the nature and extent of the barrier shortfall. Practical examples show how the ‘barrier’ approach can be applied. The barrier risk assessment directly informs the operational monitoring programme, enabling regular confirmation that the challenge and barrier performance are consistent with the predictions of the risk assessment. HIGHLIGHTS Explains why commonly used risk assessment methods can lead to water quality risks being misjudged.; Provides a ‘barrier’ risk assessment method to account for ‘latent’ risks.; Demonstrates that the greater the gap between barriers required and those existing, the higher the likelihood of contamination.; Explains how operational monitoring should be used to continuously validate the risk assessment;
    Keywords barriers to contamination ; latent risks ; risk assessment ; safe drinking water ; Public aspects of medicine ; RA1-1270
    Subject code 650
    Language English
    Publishing date 2023-10-01T00:00:00Z
    Publisher IWA Publishing
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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  9. Article ; Online: Osuntokun Award Lecture 2021: Challenges of Measuring the Burden of Stroke in Africa.

    Walker, Richard

    Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association

    2022  Volume 31, Issue 4, Page(s) 106386

    Abstract: Background: Over recent years non-communicable diseases have dramatically increased in low- and middle-income countries, including those of sub-Saharan Africa. With continuing high levels of infectious disease, these countries now face the double burden ...

    Abstract Background: Over recent years non-communicable diseases have dramatically increased in low- and middle-income countries, including those of sub-Saharan Africa. With continuing high levels of infectious disease, these countries now face the double burden of disease. Stroke has emerged as a major cause of hospital admission, disability, and mortality for which the major modifiable risk factor is hypertension, which is often not diagnosed and, even if diagnosed, not treated and, even if treated, not controlled.
    Methods: In this award lecture paper I outline my personal experience of measuring the burden of, and risk factors for, stroke in sub-Saharan Africa, along with the challenges faced. I will specifically describe the measurement of mortality and case fatality, prevalence and incidence as well as commenting on aetiology and risk factors and reflect on future initiatives and directions.
    Results: Over the past 5 decades there has been a dramatic increase in numbers of stroke patients admitted to hospital throughout sub-Saharan Africa, with high in hospital mortality rates, also reflected in high case fatality rates in those cohorts followed up following discharge from hospital. Community-based surveys assessing mortality from stroke using verbal autopsy have demonstrated very high age-adjusted rates. Age adjusted prevalence rates assessed by door-to-door surveys have generally shown lower prevalence than high income countries. The Tanzanian stroke incidence study, which incorporated verbal autopsy for those patients dying before reaching hospital, demonstrated some of the highest age-adjusted stroke incidence rates in the world. There were high rates of stroke in younger ages and high rates of intracranial haemorrhage though not as high as previously shown in hospital-based studies. Hypertension is the main modifiable risk factor but other risk factors such as HIV are important while, certainly in rural populations, raised cholesterol remains rare as does carotid artery stenosis and history of transient ischemic attack. Other vascular disease such as ischemic heart disease and peripheral vascular disease is also less common.
    Conclusions: There is already a large burden relating to stroke in sub-Saharan Africa and this will only escalate further as the population ages. Hypertension is the biggest risk factor for mortality worldwide and in sub-Saharan Africa prevalence rates are very high with the majority of people suffering with stroke not being diagnosed with their hypertension prior to their stroke. The most important challenge is to improve primary prevention for which improving diagnosis and control rates for hypertension is the number one priority. For those who do have stroke there is a need to increase the number of suitably staffed stroke units as these have been shown to have a very large impact on improving both mortality and morbidity in high income countries. There are still many unanswered questions and a need for more research throughout sub-Saharan Africa on risk factors, and treatment, for stroke.
    MeSH term(s) Africa South of the Sahara/epidemiology ; Awards and Prizes ; Humans ; Incidence ; Risk Factors ; Stroke/diagnosis ; Stroke/epidemiology ; Stroke/therapy
    Language English
    Publishing date 2022-03-22
    Publishing country United States
    Document type Journal Article ; Lecture
    ZDB-ID 1131675-5
    ISSN 1532-8511 ; 1052-3057
    ISSN (online) 1532-8511
    ISSN 1052-3057
    DOI 10.1016/j.jstrokecerebrovasdis.2022.106386
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.A 3519: Show issues Location:
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  10. Article ; Online: Farewell to Arms.

    Walker, Richard F

    Clinical interventions in aging

    2021  Volume 16, Page(s) 213–214

    Language English
    Publishing date 2021-02-03
    Publishing country New Zealand
    Document type Editorial
    ZDB-ID 2364924-0
    ISSN 1178-1998 ; 1176-9092
    ISSN (online) 1178-1998
    ISSN 1176-9092
    DOI 10.2147/CIA.S302011
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.A 6742: Show issues Location:
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