50,958 research outputs found

    Instruction for HeaIthcare Administrators

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    Instrument calculates moments of inertia of complex plane figures

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    Instrument consisting of a narrow field scanner coupled with a simple preprogrammed computer calculates distributive-area properties of complex or irregular plane figures representing cross sections of structural members. The calculator obtains the properties quickly and with a high degree of accuracy

    The Obligations of Catholics and the Rights of Unborn Children A Pastoral Statement

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    Social Security: An Investment in Family Protection

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    When Social Security was passed into law in 1935, it was not intended to be an investment program to which Americans could contribute. Rather, it was established as a risk pool to which all Americans were mandated to contribute in order to insure the presence of a stable safety net. Social Security began in the Great Depression but by 1956 it had evolved into a full-scale family-oriented insurance program that included survivors' benefits. Its intent is to provide families with support for the contingencies that occur throughout the course of life, including disability, retirement and survival of widows and children. Thus, dependent spouses and children of victims of the tragic September 11th terrorist attacks will receive Social Security survivors' benefits.It is amazing to realize that public insurance provided by Social Security to cover disability and death is greater than all private coverage of life and disability, and that it covers some 3 million children as well as older people. In fulfilling its mission, the International Longevity Center studies a variety of systems to meet the needs of people through their life course in the United States and abroad. This Brief explores the Social Security Program in the US

    Adaptive guidance and control for future remote sensing systems

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    A unique approach to onboard processing was developed that is capable of acquiring high quality image data for users in near real time. The approach is divided into two steps: the development of an onboard cloud detection system; and the development of a landmark tracker. The results of these two developments are outlined and the requirements of an operational guidance and control system capable of providing continuous estimation of the sensor boresight position are summarized

    Micro-geographic risk factors for malarial infection.

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    BACKGROUND: Knowledge of geography is integral to the study of insect-borne infectious disease such as malaria. This study was designed to evaluate whether geographic parameters are associated with malarial infection in the East Sepik province of Papua New Guinea (PNG), a remote area where malaria is a major cause of morbidity and mortality. METHODS: A global positioning system (GPS) unit was used at each village to collect elevation, latitude and longitude data. Concurrently, a sketch map of each village was generated and the villages were sub-divided into regions of roughly equal populations. Blood samples were taken from subjects in each region using filter paper collection. The samples were later processed using nested PCR for qualitative determination of malarial infection. The area was mapped using the GPS-information and overlaid with prevalence data. Data tables were examined using traditional chi square statistical techniques. A logistic regression analysis was then used to determine the significance of geographic risk factors including, elevation, distance from administrative centre and village of residence. RESULTS: Three hundred and thirty-two samples were included (24% of the total estimated population). Ninety-six were positive, yielding a prevalence of 29%. Chi square testing within each village found a non-random distribution of cases across sub-regions (p < 0.05). Multivariate logistic regression techniques suggested malarial infection changed with elevation (OR = 0.64 per 10 m, p < 0.05) and distance from administrative centre (OR = 1.3 per 100 m, p < 0.05). CONCLUSION: These results suggest that malarial infection is significantly and independently associated with lower elevation and greater distance from administrative centre in a rural area in PNG. This type of analysis can provide information that may be used to target specific areas in developing countries for malaria prevention and treatment
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