114 results for "Cook S"
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All-Cause, Cardiovascular and Respiratory Mortality in People with Type 2 Diabetes and Chronic Obstructive Pulmonary Disease (COPD) in England: A Cohort Study Using the Clinical Practice Research Datalink (CPRD)
…Lung Institute, Imperial College London, London, UKCorrespondence: Sarah Cook, Department of Primary Care and Public Health, School of Public Health, Imperial College London, Floor 9, Michael Uren Building, 86 Wood Lane, White City, London, W12 0BZ, UK, Email sarah.cook@imperial.ac.ukBackground…
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Reassessing the Leadership Principles of the Duke Healthcare Leadership Model for Use in Undergraduate and Graduate Medical Education
Nick Tsipis,1 Steve Cook,2 Joe Doty3 1Department of Emergency Medicine, Carilion Roanoke Memorial Hospital, Roanoke, VA, USA; 2Department of Neurosurgery, Duke University Medical School, Durham, NC, USA; 3Duke University School of Medicine, Durham, NC, USACorrespondence: Joe Doty, Duke University…
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THE EFFECT OF LOW PRESSURES ON CELL OXIDATION
1. A method is described for measuring tissue oxidation under reduced barometric pressure. 2. The oxygen uptake of yeast is diminished by low barometric pressures to a greater extent than by a reduction of the partial pressure of oxygen, to a corresponding degree, at atmospheric pressure. 3. This…
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THE EFFECTS OF CERTAIN HEAVY METALS ON RESPIRATION
1. The effect of the heavy metals on the respiration of Aspergillus niger is to cause the rate of carbon dioxide production to decrease from the first or to increase and subsequently diminish. 2. The speed of the toxic action varies as a constant power of the concentration. 3. The temperature…
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A LATENT PERIOD IN THE ACTION OF COPPER ON RESPIRATION
1. When copper chloride is allowed to act on Aspergillus niger there is at first a period during which there is no change in the rate of the production of carbon dioxide, following which the rate of respiration falls. The interval of no change is called the latent period. 2. When the copper is…
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THE RÔLE OF CERTAIN METALLIC IONS AS OXIDATION CATALYSTS
1. When iron and copper are allowed to act on hydrogen peroxide and pyrogallol, enough carbon dioxide is produced to be readily measured. 2. The curve of the production of carbon dioxide may be fitted by an empirical equation, by the use of which the initial rate and the total amount of the…
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THE TOXIC ACTION OF COPPER ON NITELLA
1. Using the loss of turgidity of the cells as a criterion it is found that the toxicity curve of copper chloride with Nitella is sigmoid. An empirical equation can be constructed which will approximately fit the curve. 2. When the concentration of the copper chloride is varied the toxic effect…
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THE ACTION OF POTASSIUM CYANIDE AND POTASSIUM FERRICYANIDE ON CERTAIN RESPIRATORY PIGMENTS
The oxygen in hemoglobin is liberated by K(3)Fe(CN)(6) and not by KCN, that in hemocyanin by KCN and not by K(3)Fe(CN)(6), that in hemerythrin by both, and that in echinochrome by K(3)Fe(CN)(6) and not by KCN. The bearing of these results on the nature of the substances involved is discussed.
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THE EFFECT OF SUDDEN CHANGES OF TEMPERATURE ON PROTOPLASMIC STREAMING
A sudden fall of temperature of 15° to 20° causes a complete cessation of the protoplasmic streaming in Nitella. The recovery of the normal rate follows a definite course and the time of recovery is dependent on the temperature. Evidence is adduced to show that the inhibition of streaming is due to…
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Subjective memory beliefs and cognitive performance in normal and mildly impaired older adults
Previous research suggests that subjective perceptions of memory may be related to objective memory performance. In the present study, healthy community-dwelling elders (N = 73, mean age = 75.25 years, education = 16.2 years) completed a neuropsychological assessment, including two questionnaires…
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Journal Article
Management of People with Asthma in Primary Care by Smoking Status: A Cohort Study
Rutao Jia,1 Sarah Cook,2 Jennifer K Quint,1 Hannah Whittaker1 1School of Public Health, Imperial College London, London, UK; 2Department of Health Services Research and Policy, Faculty of Public Health and Policy, London School of Hygiene & Tropical Medicine, London, UKCorrespondence: Hannah…
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Kinetic and biochemical correlation between sustained p44ERK1 (44 kDa extracellular signal-regulated kinase 1) activation and lysophosphatidic acid-stimulated DNA synthesis in Rat-1 cells.
Rat-1 fibroblasts were used to study the role of the sustained activation of extracellular signal-regulated kinase 1 (ERK1) in lysophosphatidic acid (LPA)-stimulated mitogenic signalling. Mitogenic doses of LPA, like serum, stimulated biphasic, sustained, ERK activation that persisted towards the…