37,842 research outputs found
Abbot, F. P. an Herman Grimm (2 Briefe)
No full textABBOT, F. P. AN HERMAN GRIMM (2 BRIEFE)
Abbot, F. P. an Herman Grimm (2 Briefe) (Br1)
Brief 1 (Br1)
Brief 6164 (Br6164
Glaciomarine sedimentation dynamics of the Abbot glacial trough of the Amundsen Sea Embayment shelf, West Antarctica
No full textSedimentary sequences of the continental shelf of the eastern Amundsen Sea Embayment in West Antarctica represent records of past outlet glaciers and ice streams. The former flow of ice streams was channelled through glacial troughs, which now form large bathymetric depressions. We therefore selected one of the largest troughs, the Abbot glacial trough in the outer shelf, to analyse its glacial depositional and erosional history, based on horizon-stratigraphy derived from seismic data. Several basement highs channellized the delivery of sediment and controlled the grounded ice sheet in early glacial periods. Both pre-glacial and full glacial seismic facies were identified. Glacially transported and deposited sediments extended the shelf break by 75 km from the pre-glacial shelf-edge. The main Abbot glacial trough contains sediment from confluent ice flows of the Pine Island/Thwaites, Cosgrove and Abbot Glacier systems, as well as smaller contributions from local ice streams emanating from Thurston Island. Sherman Island of Peacock Sound played an important role in the dynamics of the Abbot Glacier by dividing the ice flow into two ice streams, which interfered with the main glacial sediment transport paths from the south. This study contributes to an understanding of the formation of the Amundsen Sea shelf and the extent of past ice sheet advances
Logarithmic variance profiles and the corresponding f-1 spectra of temperature fluctuations in turbulent Rayleigh-Bénard convection
No full textWe report experimental results for the temperature variance 2(z) and the corresponding frequency spectra P(f) in turbulent Rayleigh-Bénard convection (RBC) in a cylindrical sample of aspect ratioT= D/L = 1:00 (D = 1:12 m is the diameter and L = 1:12 m the height). The measurements were conducted in the Rayleigh-number range 1011 < Ra < 1:35 1014 and Pr ' 0:8. For Ra = 1:35x1014, 2(z) could be described well by a logarithmic dependence on the vertical position z in a range of z 1 < z < z 2 with z 1 ' 70 and z 2 = 0:1L. Here L=(2Nu) is the thickness of a thin thermal sublayer adjacent to the horizontal plate where the heat flux (denoted by the Nusselt number Nu) is carried mostly by thermal diffusion. In the log layer, we found that the temperature spectra had a significant frequency range over which P(f) f with close to 1. As Ra decreased, increased so that the log layer became thinner. At Ra = 2:05 1011, z 2 < z 1 and therefore there was no range for a log layer. Correspondingly, the temperature spectrum near the horizontal plate did not have the f1 scaling form either
The life and works of Osbert of Clare
No full textOsbert of Clare was an English monastic writer, whose works extended from
the mid-1120s to the mid-1150s. His Latin hagiography reflects a deep admiration for
Anglo-Saxon saints and spirituality, while his letters provide a personal perspective
on his turbulent career. As prior of Westminster Abbey, Osbert of Clare worked to
strengthen the rights and prestige of his monastery. His production of forged or
altered charters makes him one of England's most prolific medieval forgers. At times
his passion for reform put him at odds with his abbots, and he was sent into exile
under both Abbot Herbert (1121-c.1136) and Abbot Gervase (1138-c.1157). Also
Osbert, as one of the first proponents of the Immaculate Conception of Mary, wrote
about the feast, worked to legitimize its celebration, and provided us with the only
significant narration of its introduction to England.
This thesis is divided into two sections. The first section is principally
historical and the second is principally literary. In the first section, I provide an
overview of Osbert of Clare's career and examine in greater detail two of his most
significant undertaking: his promotion of Westminster Abbey and his attempted
canonization of Edward the Confessor. In the second section, I give a philological
study of Osbert Latin style and examine themes that nm throughout his writings, such
as virginity, exile and kingship. Osbert's promotion of the feast of the Immaculate
Conception is included in the second section of the thesis because of its ties to the
themes of virginity and femininity within his writings. There are also two appendices:
the first is a survey of the extant manuscripts of Osbert's writings, and the second is
an edition of Osbert's unpublished Life of St Ethelbert from Gotha,
Forschungsbibliothek MS Memb. i. 8l
Identifying Unique Therapeutic Targets To Rescue Retinal Ganglion Cells From Degeneration After Optic Nerve Crush
No full textCentral nervous system (CNS) trauma and neurodegenerative disorders trigger a cascade of cellular and molecular events resulting in neuronal apoptosis and regenerative failure. The pathogenic mechanisms and gene expression changes associated with these detrimental events can be effectively studied using a rodent optic nerve crush (ONC) model. The purpose of this study was to use a mouse ONC model to: (a) evaluate changes in retina and ON gene expression, (b) identify neurodegenerative pathogenic pathways, (c) discover potential new therapeutic targets, and (d) evaluate the neuroprotective and axogenic properties of one selected therapeutic target on axotomized RGCs in vitro and the optic nerve crush (ONC) mouse model in vivo. Meta-analysis of altered gene expression (≥1.5 changes and ≤1.5 changes, p [less than] 0.05 demonstrated 29 up- and 20 downregulated retinal gene clusters and 82 up- and 42 down-regulated optic nerve clusters. Regulated gene clusters included regenerative change, synaptic plasticity, axonogenesis, neuron projection, and neuron differentiation related genes. Expression of selected genes (Vsnl1, Syt1, Synpr and Nrn1) from retinal and ON neuronal clusters was qualitatively and quantitatively examined for their relation to axonal neurodegeneration by immunohistochemistry and qRT-PCR. Axotomized RGCs treated with recombinant hNrn1 (selected target) significantly increased survival of RGCs by 29% (n=8, p [less than] 0.01) and neurite outgrowth of cultured neurons by 261% compared to controls in cultured neurons (n=5-7, p [less than] 0.05). RGC transduction with AAV2-CAG-hNRN1 prior to ONC promoted RGC survival (42%, n=5-8, p [less than] 0.05) and significantly preserved ERG RGC function by 41% until 28 dpc (n=6, p [less than] 0.05) compared to the control AAV2-CAG-GFP transduction group. These ONC induced neuronal loss and regenerative failure associated clusters can be extrapolated to changes occurring in other forms of CNS trauma or in clinical neurodegenerative pathological settings. In conclusion, this study identified potential therapeutic targets to address two key mechanisms of CNS trauma and neurodegeneration: neuronal loss and regenerative failure and presented Nrn1 as a potential therapeutic target for CNS neurodegenerative diseases
Prime values of and , quadratic
No full textWe prove an asymptotic formula for primes of the shape with integers and of the shape with prime. Here is a binary quadratic form with integer coefficients, irreducible over and has no local obstructions. This refines the seminal work of Friedlander and Iwaniec on primes of the form and Heath-Brown and Li on primes of the form , as well as earlier work of the author with Lam and Schindler on primes of the form with a positive definite form.45 page
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
K. F. C. Rose, The Date and Author of the Satyricon. With an Introduction by J. P. Sullivan
No full textVerdière Raoul. K. F. C. Rose, The Date and Author of the Satyricon. With an Introduction by J. P. Sullivan. In: L'antiquité classique, Tome 42, fasc. 1, 1973. pp. 279-280
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
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