2,066 research outputs found
THE USE OF POWDERED JEQUIRITY IN CERTAIN AFFECTIONS OF THE EYE.: Read in the Section of Ophthalmology, at the Forty-first Annual Meeting of the American Medical Association, at Nashville, Tenn., May, 1890.
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The Vinland, Kansas Church of Christ: Its History and Significance
This thesis describes the history of the Vinland Church of Christ, and its development in a rural community. This study considers some social factors which were a major source of the division in the Restoration Movement and notes their effect on the Vinland Church. Local history is of importance in an understanding of cultural development. Research for this thesis has been conducted with the aid of four basic sources of information, each of which helped to determine the validity and fill in the gaps of the other. The four sources are: (1) published material on the Restoration Movement in America, Kansas State history, which helped provide specific dates and information on the settlers of Douglas County and the Vinland community; (2) periodical material such as journals published by members of the Church of Christ and local newspapers proved to be an invaluable source of material dealing with specific details of events otherwise forgotten; (3) county land books were helpful as were church records, (but these are sparse indeed); and (4) personal interviews of members were useful in providing narrative information. The primary method of organization is a chronological study of the beginning, growth and survival of the Vinland Church of Christ. The conclusion reached is that the division in the Restoration Movement might be dated as early as 1876 and that the factors involved explain the action and attitudes of the church leaders who drew up the property deed at Vinland in 1906. Their concern that "progressionism" might corrupt New Testament worship as embraced by the Church of Christ caused them to take steps to guarantee that their building would not fall into the hands of the Christian Church
Single-stage experimental evaluation of tandem-airfoil rotor and stator blading for compressors. Part 1: Analysis and design of stages A, B, and C
A conventional rotor and stator, two dual-airfoil tandem rotors, and one dual-airfoil tandem stator were designed. The two tandem rotors were each designed with different percentages of the overall lift produced by the front airfoil. Velocity diagrams and blade leading and trailing edge metal angles selected for the conventional rotor and stator blading were used in the design of the tandem blading. Rotor inlet hub/tip ratio was 0.8. Design values of rotor tip velocity and stage pressure ratio were 757 ft/sec and 1.30, respectively
Executive functions and the ω-6-to-ω-3 fatty acid ratio: a cross-sectional study
BACKGROUND: The ω-6 (n-6) to ω-3 (n-3) fatty acid (FA) ratio (n-6:n-3 ratio) was previously shown to be a predictor of executive function performance in children aged 7-9 y.
OBJECTIVE: We aimed to replicate and extend previous findings by exploring the role of the n-6:n-3 ratio in executive function performance. We hypothesized that there would be an interaction between n-3 and the n-6:n-3 ratio, with children with low n-3 performing best with a low ratio, and those with high n-3 performing best with a high ratio.
DESIGN: Children were recruited on the basis of their consumption of n-6 and n-3 FAs. The executive function performance of 78 children aged 7-12 y was tested with the use of the Cambridge Neuropsychological Test Automated Battery and a planning task. Participants provided blood for plasma FA quantification, and the caregiver completed demographic and activity questionnaires. We investigated the role of the n-6:n-3 ratio in the entire sample and separately in children aged 7-9 y (n = 41) and 10-12 y (n = 37).
RESULTS: Dietary and plasma n-6:n-3 ratio and n-3 predicted performance on working memory and planning tasks in children 7-12 y old. The interaction between dietary n-6:n-3 ratio and n-3 predicted the number of moves required to solve the most difficult planning problems in children aged 7-9 y and those aged 10-12 y, similar to results from the previous study. There was also an interaction between the plasma n-6:n-3 ratio and n-3 predicting time spent thinking through the difficult 5-move planning problems. The n-6:n-3 ratio and n-3 predicted executive function performance differently in children aged 7-9 y and in those aged 10-12 y, indicating different optimal FA balances across development.
CONCLUSIONS: The n-6:n-3 ratio is an important consideration in the role of FAs in cognitive function, and the optimal balance of n-6 and n-3 FAs depends on the cognitive function and developmental period studied. This trial was registered at clinicaltrials.gov as NCT02199808
AN INVESTIGATION OF A RADIO FREQUENCY GENERATED CYLINDRICAL PLASMA WITH ALKALI METAL INJECTION
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76275/1/AIAA-1966-1636-392.pd
A Flight and Analog Study of the Effect of Elevating the Radar-boresight Axis upon Stability and Tracking Performance of an Automatically Controlled Interceptor
A flight and analytical study of methods for reducing automatic-interceptor tracking errors caused by target maneuvers
Omega-6/omega-3 fatty acid intake of children and older adults in the U.S.: dietary intake in comparison to current dietary recommendations and the Healthy Eating Index
Abstract Background Omega-6 and omega-3 fatty acids (FAs) and their ratio have been shown to affect cognitive function in children and older adults. With these analyses, we aimed to describe omega-6 and omega-3 FA intake among children and older adults in light of FA intake recommendations and with consideration of overall diet. Methods Data were merged from two cross-sectional studies with 219 children 7 to 12Â years old and one longitudinal study with 133 adults 65 to 79Â years old. Demographic data, anthropometric data, and Healthy Eating Index scores were used to study relations among the omega-6 to omega-3 FA ratio and age, education, body mass index, and diet quality. FA intake, demographic, and anthropometric data were examined using partial correlations, t-tests, and analysis of variance. Results Most children and adults consumed at least the recommended amount of alpha-linolenic acid (LNA; omega-3) for their age and gender without consuming high amounts of linoleic acid (LA; omega-6), but did not consume sufficient eicosapentaenoic acid (EPA; omega-) and docosahexaenoic acid (DHA; omega-3). The average omega-6 to omega-3 ratios in both groups were lower than previously reported. Eating lower ratios was associated with healthier diets and consuming adequate amounts of several other nutrients. No demographic or anthropometric variables were related to FA intake in children. Adults with a college degree had significantly lower ratios than those without a college degree. Conclusions American children and older adults are able to consume more balanced omega-6 to omega-3 ratios than has been indicated by commodity data. However, very few American children met even the lowest recommendations for EPA and DHA intake. Research is needed to clarify recommendations for the optimal ratio across development, which may aid in increasing EPA and DHA intake and improving health outcomes in the United States. Trial registration ClinicalTrials.gov NCT02199808 13 July 2014, NCT01823419 (retrospectively registered) 20 March 2013, and NCT01515098 18 January 2012
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