59,034 research outputs found

    The distribution of chlorophyll in the western Indian Ocean during the northeast monsoon period, February 13-July 16, 1965

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    This report contains the observations of phytoplankton pigment characteristics made during ATLANTIS II Cruise No. 15 in the western Indian Ocean and its reaches during the period of February 13 through July 16, 1965. As pointed out in a previous report for this region (Laird et al., 1964), the observations should by no means be considered synoptic since short-term variation will occur in biological measurements. The value of the present observations is greatly enhanced by the fact that they repeat and extend the previous data from ATLANTIS II Cruise No. 8 for the area, but are taken at the opposite period of the year for all regions. The data permit only a first approximation of the relative fertility in the area, yet the seasonal contrast becomes an important consideration in the analysis and interpretation of the data. It is believed that this represents the first such large-scale survey for Indian Ocean waters.The National Science Foundation under Grant NSF-GP 82

    Resource allocation in a university environment : a test of the Ruefli, Freeland, and Davis goal programming decomposition algorithms / BEBR No. 735

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    Bibliography: p. 20-22

    Stable coronary syndromes: pathophysiology, diagnostic advances and therapeutic need

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    The diagnostic management of patients with angina pectoris typically centres on the detection of obstructive epicardial CAD, which aligns with evidence-based treatment options that include medical therapy and myocardial revascularisation. This clinical paradigm fails to account for the considerable proportion (approximately one-third) of patients with angina in whom obstructive CAD is excluded. This common scenario presents a diagnostic conundrum whereby angina occurs but there is no obstructive CAD (ischaemia and no obstructive coronary artery disease—INOCA). We review new insights into the pathophysiology of angina whereby myocardial ischaemia results from a deficient supply of oxygenated blood to the myocardium, due to various combinations of focal or diffuse epicardial disease (macrovascular), microvascular dysfunction or both. Macrovascular disease may be due to the presence of obstructive CAD secondary to atherosclerosis, or may be dynamic due to a functional disorder (eg, coronary artery spasm, myocardial bridging). Pathophysiology of coronary microvascular disease may involve anatomical abnormalities resulting in increased coronary resistance, or functional abnormalities resulting in abnormal vasomotor tone. We consider novel clinical diagnostic techniques enabling new insights into the causes of angina and appraise the need for improved therapeutic options for patients with INOCA. We conclude that the taxonomy of stable CAD could improve to better reflect the heterogeneous pathophysiology of the coronary circulation. We propose the term ‘stable coronary syndromes’ (SCS), which aligns with the well-established terminology for ‘acute coronary syndromes’. SCS subtends a clinically relevant classification that more fully encompasses the different diseases of the epicardial and microvascular coronary circulation

    Interview with Thomas Wolf, December 29, 1994 & August 9, 1995

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    Thomas Wolf was interviewed on December 29, 1994 & August 9, 1995 by Michael J. Birkner & David Hedrick about his service in World War II and involvement in the Nixon administration. He discusses his role in the Air Force Counterintelligence Corps during World War II, and his work with several government agencies, such as the Citizens of Eisenhower and the Office of Economic Opportunity. Wolf also describes the Watergate Scandal and his participation in the trial. Length of Interview: 92 Minutes (Part 1), 47 Minutes (Part 2) Collection Note: This oral history was selected from the Oral History Collection maintained by Special Collections & College Archives. Transcripts are available for browsing in the Special Collections Reading Room, 4th floor, Musselman Library. GettDigital contains the complete listing of oral histories done from 1978 to the present. To view this list and to access selected digital versions please visit -- http://gettysburg.cdmhost.com/cdm/landingpage/collection/p16274coll

    Impacts of risk aversion on whole-farm management in Syria

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    This article reports on a study of the impact of risk on farm management practices in northern Syria, focusing particularly on how these are affected by risk aversion and farm size. The study is based on production data from an eight‐year field trial and on prices from market surveys. A large linear programming model is built, representing the eight years as observations from a discrete probability distribution. Risk aversion is modelled by inclusion of a utility function with constant relative risk aversion, represented using the DEMP/UEP approach.Farm Management, Risk and Uncertainty,
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