Rocket radio measurement of electron density in the nighttime ionosphere

One experimental technique based on the Faraday rotation effect of radio waves is presented for measuring electron density in the nighttime ionosphere at midlatitudes. High frequency linearly-polarized radio signals were transmitted to a linearly-polarized receiving system located in a spinning rocket moving through the ionosphere. Faraday rotation was observed in the reference plane of the rocket as a change in frequency of the detected receiver output. The frequency change was measured and the information was used to obtain electron density data. System performance was evaluated and some sources of error were identified. The data obtained was useful in calibrating a Langmuir probe experiment for electron density values of 100/cu cm and greater. Data from two rocket flights are presented to illustrate the experiment

The Future of Career and Technical Education

The purpose of this study was to develop a new model and blueprint of the Southeast School District’s Career and Technical Education (CTE) curriculum which invest more in programs and training, connect education to careers and allow easy access and availability to all students. Career and technical education have the potential to engage students through relevant learning experiences and, when infused with rigorous academic standards, to thoroughly prepare students for college and career success. In one Southeast School District, career and technical education are yet to achieve its full potential for students. Whether partnerships have yet to be formed, updated instructional approaches have yet to be implemented, or data systems have yet to be aligned, many students do not have access nor availability to the most effective career and technical education programs. The need to re-imagine and remake career and technical education is urgent. One factor supporting the overall CTE\u27s deficiency is the district\u27s failure to inform students/parents of programs, such as CTE, and the benefits thereof. Dissemination of program information to all students and their parents is a relatively low-cost approach, with the potential to increase program participation among youth who may benefit most from work-based learning opportunities. The vision of the curriculum is that all youth have access to an excellent school curriculum that will prepare them to attain an excellent education and successfully transition to college and a career. The current Southeast School District\u27s CTE curriculum is widespread among 33 high schools where students do not have access nor exposure to specific programs that are of high interest to them. These programs have been identified as critical to developing skills and preparing iii youth to become workforce ready. Because campus sites where programs are offered are not accessible to where students live and only one or two schools offer the program of interest, chances of students getting into the program are very minimal. As a result, those students will not be exposed to skills and training that prepare them for opportunities and occupations beyond the classroom. Readiness takes time; students need access to prepare for the future now. Workplace readiness means understanding what to expect and having the skills and training to complete assigned tasks

A Twenty Year Path: Learning about Assessment; Learning from Assessment

This article reviews the development of educational assessment from the 1970\u27s to the present, including discussions of basic working definitions and models of assessment in information literacy. It reflects on what librarians have learned from assessment and about assessment, and how this information is being used to improve current and future assessment offerings

An analytical approach to solution of two- point boundary condition problems in optimal guidance Summary report, May 1965 - Apr. 1966

Analytical approaches to path-adaptive guidance functions, circular orbit trajectories, and use of Fortran-compiled program

Decreases in working memory capacity for sentence stimuli with adult aging

The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.Title from title screen of research.pdf file (viewed on March 26, 2008)Includes bibliographical references.Thesis (M.A.) University of Missouri-Columbia 2007.Dissertations, Academic -- University of Missouri--Columbia -- Psychology.Previous studies have found that older adults have poorer immediate recall for language. Older adults may recall fewer chunks from working memory, or may have difficulty binding words or sentences together to form multi-unit chunks. We examined these two hypotheses by presenting participants with 4 types of spoken sentences for immediate free recall, varied by the number and length of chunks per trial: 4 short, simple sentences; 8 such sentences; 4 compound sentences, meaningfully comprised of two short sentences; and 4 random sentences. On those trials where the number or length of presented chunks were large, older adults formed fewer chunks than young adults with few differences in chunk size. Our results suggest that both of the above hypotheses influenced recall for older adults, though the degree of involvement of each has yet to be determined

Reaction of pyrroles with ethyl 2-nitroso- and 2-azo-propenoates, and with ethyl cyanoformate N-oxide: a comparison of the reaction pathways

The reaction of ethyl 2-nitrosopropenoate 2a with 1 -methylpyrrole, 2.5-dimethylpyrrole and 2.5- diphenylpyrrole has been investigated. In every case the products result from highly regioselective attack at C-2 of the pyrrole by the electrophile. The azopropenoate esters 2b and 2c react similarly with pyrroles, to the extent that even 1 -(triisopropylsilyl)pyrrole is attacked exclusively at the 2-position by the azo ester 2b. In contrast, the nitrile oxide ethyl cyanoformate N-oxide 12 reacts at the 3-position of 2.5- dimethyl- and of 2,5-diphenyl-pyrrole. The reactions of the nitroso and azo esters with pyrroles are interpreted as Diels-Alder cycloadditions with inverse electron demand

Can the focus of attention accommodate multiple, separate items?

Title from PDF of title page (University of Missouri--Columbia, viewed on October 18, 2012).The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.Dissertation advisor: Dr. Nelson CowanVita.Ph. D. University of Missouri--Columbia 2011"May 2011"Researchers of working memory currently debate capacity limits of the focus of attention, the proposed mental faculty in which items are most easily accessed. Cowan (1999) suggested that its capacity is about 4 chunks, whereas others have suggested that its capacity is only 1 chunk. Recently, Oberauer and Bialkova (2009) found evidence that 2 items could reside in the focus of attention, but only because they were combined into a single chunk. We modified their experimental procedure, which depends on a pattern of switch costs, to obtain a situation in which chunking was not likely to occur (i.e., each item remained a separate chunk), and still obtained results consistent with a capacity of at least 2 items. Therefore, either the focus of attention can hold multiple chunks, or the switch cost logic must be reconsidered.Includes bibliographical reference

Behaviour change interventions to influence antimicrobial prescribing: a cross-sectional analysis of reports from UK state-of-the-art scientific conferences

Background To improve the quality of antimicrobial stewardship (AMS) interventions the application of behavioural sciences supported by multidisciplinary collaboration has been recommended. We analysed major UK scientific research conferences to investigate AMS behaviour change intervention reporting. Methods Leading UK 2015 scientific conference abstracts for 30 clinical specialties were identified and interrogated. All AMS and/or antimicrobial resistance(AMR) abstracts were identified using validated search criteria. Abstracts were independently reviewed by four researchers with reported behavioural interventions classified using a behaviour change taxonomy. Results Conferences ran for 110 days with >57,000 delegates. 311/12,313(2.5%) AMS-AMR abstracts (oral and poster) were identified. 118/311(40%) were presented at the UK’s infectious diseases/microbiology conference. 56/311(18%) AMS-AMR abstracts described behaviour change interventions. These were identified across 12/30(40%) conferences. The commonest abstract reporting behaviour change interventions were quality improvement projects [44/56 (79%)]. In total 71 unique behaviour change functions were identified. Policy categories; “guidelines” (16/71) and “service provision” (11/71) were the most frequently reported. Intervention functions; “education” (6/71), “persuasion” (7/71), and “enablement” (9/71) were also common. Only infection and primary care conferences reported studies that contained multiple behaviour change interventions. The remaining 10 specialties tended to report a narrow range of interventions focusing on “guidelines” and “enablement”. Conclusion Despite the benefits of behaviour change interventions on antimicrobial prescribing, very few AMS-AMR studies reported implementing them in 2015. AMS interventions must focus on promoting behaviour change towards antimicrobial prescribing. Greater focus must be placed on non-infection specialties to engage with the issue of behaviour change towards antimicrobial use