2,458 research outputs found
Climate Change in Space: The Impact on Space Debris
No full textRising carbon dioxide concentrations are causing cooling and contraction of the thermosphere, reducing the neutral density and therefore the atmospheric drag experienced by space debris. Simulations of the thermosphere under increasing carbon dioxide concentrations have been performed with the Whole Atmosphere Community Climate Model - extended (WACCM-X). These have been used to create a density scaling factor for thermospheric density, which is dependent upon altitude, ground-level carbon dioxide (CO2) concentration, and solar activity. Results show there has already been a 21% decrease in thermospheric density at 400 km altitude since the year 2000. If global temperatures increase by 1.5◦C at ground level, WACCM-X predicts there will be a 15 - 32% decrease in density at 400 km compared to the year 2000, dependent upon solar activity. Moreover, the reduction in thermospheric density is predicted to continue at faster rates with further increases in the CO2 concentration. The debris environment has been modelled with the new Binned Representative Atmospheric Decay (BRAD) debris model under the four Representative Concentration Pathways (RCPs) for CO2 concentration. Compared against a control scenario with no density reductions, it is shown that the number of trackable objects by the year 2100 is 40% larger under the low-emissions RCP2.6 scenario and 214% larger in the high-emissions RCP8.5 scenario.<br/
Graduate recital, choral conducting. Brown, L., 1988
No full textRecorded during a live performance at Dalton Center Recital Hall, Western Michigan University, Kalamazoo, Michigan, April 10, 1988, 3:00 p.m., the 303rd concert of the School of Music's 1987-1988 season.Concert Choir and Treble Chorus, variously, Lyle Brown, conductor ; various vocal and instrumental soloists.In partial fulfillment of the requirements of the Master of Music degree in choral conducting, Western Michigan University, 1988.Information from performance program.Summer is icumen in / Anonymous (ca. 1240) -- Crucifuxus / Antonio Lotti -- Magnificat. 11. Sicut locutus est ; 12. Gloria Patri / Johann Sebastian Bach (Mary Ross, cello ; Matthew Elliott, harpsichord) -- Laudate pueri / Felix Mendelssohn (Fern Annette Lane, Julie Gummert, Corlyn Longer, vocal soloists ; Matthew Elliott, harpsichord) -- Sault printemps / Claude Debussy (Corlyn Longer, soprano soloist ; Matthew Elliott, piano) -- Elegischer Gesang / Ludwig van Beethoven (Sherry Witmer, Ellen Garey, violins ; Kristen Shoup, viola ; Erika Reinel, cello) -- Miracles in the sky: world premiere / Neal Woodson (Fern Annette Lane, Melissa Heng, soloists) -- What if I never speed? / John Dowland (Fern Annette Lane, soprano ; Debbie Gruber, alto ; Steven Morris, tenor ; Kenneth Lee, bass ; Chris Garrett, Tamara Ballen, Marie Blankenship, recorders ; Mary Ross, viola da gamba) -- Matra pictures. Summer ; The hen song / Zoltán Kodály (Kenneth Lee, baritone ; Barbara Sudeikis, mezzo-soprano ; David Veenhuis, baritone) -- The promise of living, from The tender land / Aaron Copland (Matthew Elliott, Steven Morris, pianos
Dataset supporting the article: "Future Decreases in Thermospheric Neutral Density in Low Earth Orbit due to Carbon Dioxide Emissions"
No full textThis dataset is supporting the article
"Future Decreases in Thermospheric Neutral Density in Low Earth Orbit due to Carbon Dioxide Emissions".
Published in JGR Atmospheres, Volume126, Issue8, 27 April 2021,
e2021JD034589
https://doi.org/10.1029/2021JD034589
The data portrays Neutral density scaling tables for empirical atmospheric models to account for thermospheric contraction due to carbon dioxide emissions.
Scaling factors that can be applied to the neutral densities obtained from empirical atmospheric models, particularly NRLMSISE-00. These are designed to account for the reductions in density within the upper atmosphere caused by carbon dioxide emissions. They were created using WACCM-X (see https://doi.org/10.1029/2021JD034589 for further details on the low solar activity data). Each scaling factor is relative to the year 2000, and is dependent upon altitude (range 100-500 km), solar activity through F10.7 (70-200 sfu) and ground-level carbon dioxide concentration (368.9 to 890.0 ppm, covering years 2000-2100 in the RCP8.5 scenario). RCP refers to the Representative Concentration Pathways of the IPCC's Fifth Assessment Report. ScalingArray.txt is dependent upon carbon dioxide concentration, while each .txt file with an RCP appended is dependent upon the year (2000-2100) instead, following the carbon dioxide concentrations of the named RCP. Each file contains information on the format of the table used.</span
Zechariah and the Gospel off Matthew: the use of a biblical tradition
No full textThis thesis examines the use of Zechariah traditions in Matthew's Gospel. It analyzes and interprets the ways Matthew transmits, alters or adds Zechariah traditions to his sources. Instead of looking at portions of the Gospel in light of Zechariah 9-14 only, this study addresses the entire Gospel and all of Zechariah. In focusing on Zechariah tradition, the thesis has kept the following considerations in view. First, the content and function of Matthew's explicit uses of Zechariah are examined. Second, ways in which tradition derived from Zechariah may have exerted influence on portions of the gospel sub-structure are identified. Third, it explores the extent to which Matthew alludes to characteristic Zechariah themes. Together, these components illuminate how Matthew's Gospel incorporates its Zechariah material, whether alone or in combination with other prophetic traditions. Thus the methodological approach of the thesis is not only grounded in classical methods of biblical criticism but is also open to recent literary methods. In addition to explicit citations, numerous allusions and echoes of Zechariah tradition are present in Matthew. They appear in Matthean materials and in traditions Matthew has taken from Mark and Q. Because the focus of this thesis is open to both the Gospel and the Zechariah traditions in their entirety, two important observations have been made. First, traces of Zechariah material are found in the Infancy and Gaililean healing Narratives as well as in the Passion Narrative. Not only is the impact of Zechariah 9-14 observed, but important sections of Zechariah 1-8 are also discerned in Matthew's narrative structure. Moreover, Matthew's Son of David Christology is enriched and partially defined by Zechariah's prophet-shepherd imagery, as well as by the royal messianic motif
'Woe to you, hypocrites!' : law and leaders in The Gospel of Matthew
No full textThis thesis seeks to move beyond the impasse in Matthean scholarship that posits the reason for conflict in Matthew 23 with the authorial community. A framework is developed that allows the possibility that the gospel was received and understood by a widespread, general audience that itself was not necessarily embroiled in conflict. Multiple complementary methods are used to analyze how an ancient audience might expect conflict and work through its development in the narrative. Analysis of comparative biographical literature and of Old Testament references and allusions shows that readers could expect in literature the type and intensity of conflict exhibited in Matthew 23. The gospel's internal narrative development provides unity to the conflict episodes in Matthew 9-23. It also offers rationale for the escalation of conflict for which Matthew 23 is the summary. Chapter One: The Shape of the Discussion surveys representative works including redaction, social scientific, socio-historical, narrative and genre critics, to understand the options for studying conflict in Matthew. Reader-response oriented genre criticism provides language for framing reader expectations. Chapter Two: Expecting Conflict examines expectations that can be associated with Matthew's use of the Old Testament and by comparison with ancient biographies. Chapter Three: The Conflict Builds works systematically through each of the points of contact between Jesus and the leaders of Israel in chapters 9-22 organized by three topics: legal interpretation, the identity and authority of Jesus, and the character of the leaders. Chapter Four: Woe to You takes up the task of examining Matthew 23. The analysis of Matthew 23 identifies three components in the summary of conflict: Jesus presented as the model for his audience, Jesus' final denunciation of the leaders, and the presentation of Jesus as God’s representative. The multi-methodological approach used in this study of Matthew 23 suggests a narrative that invites the reader to rethink how one knows and understands God. The study thereby provides an alternative to the assumption that conflict reflects the immediate experience of a narrowly conceived authorial community
Joseph Lee: Poems from the Great War
No full textRanked alongside Owen, Brooke and Sassoon, Joseph Lee was once regarded as one of Scotland's finest First World War poets. During the conflict his works were well-known in Britain and around the world. Since then his powerfully evocative poems have become sadly neglected. This illustrated anthology of some of the best of his verse seeks to re-establish Lee as one of the major poets of the Great War. This collection has been edited by Caroline Brown and Matthew Jarron and includes a critical appraisal by Dr Keith Williams
Beauty for the Present: Mill, Arnold, Ruskin and Aesthetic Education
No full textThe present thesis examines the idea of aesthetic education of three eminent Victorians: John Stuart Mill, Matthew Arnold and John Ruskin. By focusing on the essence of what they meant with ‘the cultivation of the beautiful’ and, more importantly, the way their ideas of beauty informed their criticism of society, my study aims to contribute to our understanding of the idea of aesthetic education in the Victorian context and, further, to participate in a recent debate about the nature of beauty and aesthetic education.
Chapter One focuses on John Stuart Mill’s concept of ‘feeling’ in a series of essays. I will demonstrate how Mill’s idea of ‘aesthetic education’ was an ‘education of feelings,’ and moreover, how this idea was integrated into his literary criticism, his later critique of democratisation, his description of an ideal liberal society and even his own style of writing. Chapter Two contains a comparative study of Matthew Arnold and Friedrich Schiller. Through a rereading of Arnold, I will argue that his idea of aesthetic education is essentially Schillerian and that their resemblance consists primarily in their stress on the importance of aesthetic unity for modern life, which was becoming increasingly fragmentary and multitudinous. Chapter Three examines John Ruskin’s idea of aesthetic education and concentrates particularly on the cultivation of perception. Perception, as I shall show, was pivotal in Ruskin’s idea of aesthetic education. Just as what happened in Mill and Arnold, the emphasis on the education of seeing continued from his early writings well into his art and social criticisms. It not only differentiated him from his fellow art critics; the conviction that people should perceive with a pure heart also enabled him to link observation of artistic details with moral criticism of contemporary society and, thereby, to turn the cultivation of the beautiful into a moral-aesthetic experience
Wisdom and apocalyptic in the Gospel of Matthew : a comparative study with 1 Enoch and 4QInstruction
No full textRecent scholarship has demonstrated that Matthew's gospel has significantly developed
both sapiential and apocalyptic elements within its narrative. Little attention has been paid,
however, to the question of how these two features of Matthew's gospel might relate to one
another. It is this gap in scholarly literature that the present study is intended to fill, by means of a
comparative study with two other texts of mixed genre: 1 Enoch and 4Qlnstruction.
An examination of these texts demonstrates that each is marked by an inaugurated
eschatology, within which the revealing of wisdom to an elect group, defined in distinction to the
Jewish parent group, serves as the pivotal moment of inauguration. In addition, within
4Qlnstruction the idea is developed that possession of this revealed wisdom allows the remnant
to live in fidelity to the will of the Creator and to the patterns built-in to the original creation.
Thus, possession of revealed wisdom facilitates a recovery of creation.
These findings provide lines of enquiry that may be brought to Matthew. Three sections
of the gospel are examined (chapters 5-7; 11-12; 24-25). It is argued that Jesus is presented as an
eschatological figure who reveals wisdom to an elect group. This wisdom cannot be reduced to
great moral insight or interpretation of Torah, but is presented as prophetic revelation, happening
in eschatological time. It remains the case, however, that Matthew presents it as wisdom and
presents Jesus as a sage.
More tentatively, it is suggested that creation provides the patterns for the ethical
requirements of Jesus' wisdom, thus indicating that the idea of restored creation is also at work in
Matthew. The fall of the temple may also be connected in Matthew's narrative to such a
restoration, but again, the evidence for this is not clear
Dromaeosaurus Matthew & Brown 1922
No full textFamily DROMAEOSAURIDAE Dromaeosaurus sp. Material.— DMNH 34594 tooth (Denver Formation, Loc. 17); DMNH 44386 tooth (Denver Formation, Loc. 20); UCM 38743 tooth (Laramie Formation, Loc. 4); UCM 38754 tooth (Laramie Formation, Loc. 4); UCM 38755 tooth (Laramie Formation, Loc. 4); UCM 42323 tooth (Laramie Formation, Loc. 1); UCM 42324 tooth (Laramie, Loc. 1); and UCM 68917 tooth (Denver Formation, Loc. 34). Description and discussion. — Small theropod teeth are tentatively referred to Dromaeosaurus based on their overall size, shape, and denticle pattern (where preserved).Published as part of Kenneth Carpenter & D. Bruce Young, 2002, Late Cretaceous dinosaurs from the Denver Basin, Colorado, pp. 237-254 in Rocky Mountain Geology 37 on page 244, DOI: 10.2113/gsrocky.37.2.237, http://zenodo.org/record/394308
Reactive iron delivery to the Gulf of Alaska via a Kenai eddy
No full textMesoscale anticyclonic eddies in the Gulf of Alaska are an important mechanism for cross-shelf exchange of high iron, low nitrate coastal waters and low iron, high nitrate offshore waters. A Kenai eddy was sampled in September 2007, 8 months after formation. The subsurface eddy core layer contained reactive iron concentrations more than eight times greater than waters at the same depths outside the eddy. The subsurface core of the Kenai eddy (25.4≤σθ≤25.8) is suggested to be seasonally important as these waters can be brought to the surface with storm events and deep winter mixing. The deeper core layer (25.8≤σθ≤27.0) is suggested to be a source of iron to HNLC waters on a longer timescale, due to isopycnal mixing and eventual eddy relaxation. The subsurface and deeper core layers are important reservoirs of iron that can promote and sustain primary productivity over the lifetime of the Kenai eddy. In addition, dissolved and leachable particulate manganese are shown to be excellent tracers of eddy surface and subsurface waters, respectively.</p
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