1,559 research outputs found

    AE and DE mass spectrometer observations relevant to the shuttle glow

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    Recent work suggested that NO2 may be responsible for the observed continuum glow near surfaces of the space shuttle. The observations of atomic nitrogen (N) are reported at shuttle altitudes using mass spectrometers, giving special attention to the surface reactions of N relevant to the production of NO2 on spacecraft surfaces. Data from two semi-open sources mass spectrometers, the OSS instruments on the Atmosphere Explorer-C and -D satellites, and the closed source Neutral Atmospheric Composition Spectrometer (NACS) on the Dynamic Explorer-2 satellite are presented to show the similar behavior of NO in each case and the contrasting behavior of NO2. Although signals of NO and NO2 are highly dependent on surface temperature and surface composition, it appears that direct exposure of ion source surfaces to rammed gas is a necessary condition for the production of large amounts of NO2. Evidence that elevated surface temperatures can significantly reduce the production of NO2, likely by causing more rapid desorption of NO from these surfaces, is presented

    A correlative investigation of the propagation of ULF wave power through the dayside magnetosphere

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    Three different ULF wave phenomena (azimuthally polarized Pc 3 pulsations, radially polarized Pc 4 pulsations, and solitary Pc 5 pulsations related to solar wind pressure pulses) were studied. The main problems covered are: (1) how do magnetospheric Pc 3-4 pulsations, which appear to originate in the solar wind, enter the magnetosphere, and how is this wave energy transported throughout the magnetosphere once it enters; (2) what is the ULF response of the outer dayside magnetosphere to solar wind pressure pulses; and (3) how do Pc 3-4 pulsations modulate ELF-VLF emissions in the dayside magnetosphere

    Analysis of magnetometer data/wave signals in the Earth's magnetosphere

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    Work on the reduction and analysis of Dynamics Explorer (DE) satellite magnetometer data with special emphasis on the ULF fluctuations and waves evident in such data is described. Research focused on the following: (1) studies of Pc 1 wave packets near the plasmapause; (2) satellite-ground pulsation study; (3) support for studies of ion energization processes; (4) search for Pc 1 wave events in 1981 DE 1 data; (5) study of Pc 3-5 events observed simultaneously by DE 1 and by AMPTE CCE; (6) support for studies of electromagnetic transients on DE 1; and (7) analysis of wave events induced by sudden impulses

    A correlative investigation of the propagation of ULF wave power through the dayside magnetosphere

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    Work performed from 1 Jan. - 30 Jun. 1992 is reported. The topics covered include the following: the radial pulsation study, the wave polarization study; radial boundaries of Pc 3-4 pulsations in the dayside magnetosphere; and source regions for correlated ULF-VLF pulsations

    Atomic nitrogen densities near the polar cusp

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    The neutral atmospheric composition spectrometer on board the Dynamics Explorer 2 spacecraft sampled several major and minor thermospheric gases including atomic nitrogen. A selection of passes over the polar cusp that provide a quantitative measure of N densities in this region and provide evidence of localized density increases due to soft particle precipitation is presented. Increases in N densities are frequently observed but are smaller than accompanying increases in N2 densities. The observations support earlier studies suggesting that N densities increase more rapidly than O densities during periods of high solar EUV flux and N densities are larger in the summer hemisphere than in the winter hemisphere. A series of passes in February 1983, late in the lifetime of DE 2, indicated N densities at 200 km altitude were a factor of 2 larger near the southern cusp than near the northern cusp

    Both universal and local: The catholic/Catholic identity of the Catholic school within the church

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    This is the third in a series of four papers which seeks to articulate theologically and practically the consequences of the ecclesial identity of the Catholic school. The series is based on the principle that the marks of the Church-one, holy, catholic and apostolic-are also marks of the Catholic school. In this paper, the third of the marks of the Church and therefore of the Catholic school- catholic- is discussed in terms of what it means for the school to be both catholic and Catholic. It is argued that as catholic, the mission of the school is universal, and the implications of this in terms of students from other Christian denominations and other religions are considered. It is also argued that as Catholic, the school is called to the religious socialization of Catholic students, and that this task takes place within a particular theological context, and has particular responsibilities

    The Restructuring of a Network Architecture

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    Learning about and learning from religion: The pedagogical theory of Michael Grimmitt

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    SB57: Resolution Creating a Stipend for the ASUM Faculty Advisor

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    SB57: Resolution Creating a Stipend for the ASUM Faculty Advisor. This resolution failed 0Y-25N-2A at the February 15, 2017 meeting of the Associated Students of the University of Montana Senate (ASUM)

    Foundational Issues in Educating Young People for Understanding and Appreciation of the Religions in Their Communities

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    This is a conceptual paper considering some of the foundational issues that a teacher needs to have at least considered (if not resolved) when he or she sets out to encourage students to understand and appreciate the variety of religions in their communities. The first issue is that of what to call the enterprise; the second relates to assumed hierarchies of religions and the barriers these can impose on genuine education about religions; the third issue is that of the fundamentalist student; the fourth issue is the pervasive presence of religious history especially when religion has been the oppressor; the fifth, the position of the believing student in the conversation; and the sixth, the development of critical thinking about religions. All of these foundational issues provide rich content for educators’ reflections, reading, and discussions with colleagues and dialogue with students
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