3,143 research outputs found
Literacy Practices and Schooling: A Case Study from Mozambique
A novel approach to the assessment of literacy is used to tackle the issue of effectiveness of years of schooling. The dichotomy inherent in the literacy rate is rejected in favor of a " practice-based" approach, which considers literacy as a multifaceted phenomenon as advocated in anthropological and economic research. Primary data collected in the poorest region in Mozambique suggest that years of schooling have a differentiated impact on acquired literacy practices of adults. Results that are robust to different specifications are reported. © 2011 Elsevier Ltd
Spectral Analysis of the Stromlo-APM Survey II. Galaxy luminosity function and clustering by spectral type
We study the luminosity function and clustering properties of subsamples of
local galaxies selected from the Stromlo-APM survey by the rest-frame
equivalent widths of their Halpha and Oii emission lines. The b_J luminosity
function of star-forming galaxies has a significantly steeper faint-end slope
than that for quiescent galaxies: the majority of sub-L* galaxies are currently
undergoing significant star formation. Emission line galaxies are less strongly
clustered, both amongst themselves, and with the general galaxy population,
than quiescent galaxies. Thus as well as being less luminous, star-forming
galaxies also inhabit lower-density regions of the Universe than quiescent
galaxies.Comment: 8 pages, 7 figures, MNRAS, in pres
Thunderstorm/environment interactions that affect subsequent convection
Mesoscale kinematics and thermodynamics of severe thunderstorm-baroclinic zone interactions, and the development and evolution of mesoscale pressure systems associated with strong convective storms, are being studied in an ongoing research project
Spectral Analysis of the Stromlo-APM Survey I. Spectral Properties of Galaxies
We analyze spectral properties of 1671 galaxies from the Stromlo-APM survey,
selected to have 15 < b_J < 17.15 and having a mean redshift z = 0.05. This is
a representative local sample of field galaxies, so the global properties of
the galaxy population provide a comparative point for analysis of more distant
surveys. We measure Halpha, Oii 3727, Sii 6716, 6731, Nii 6583 and Oi 6300
equivalent widths and the D_4000 break index. The 5A resolution spectra use an
8 arcsec slit, which typically covers 40-50% of the galaxy area. We find no
evidence for systematic trends depending on the fraction of galaxy covered by
the slit, and further analysis suggests that our spectra are representative of
integrated galaxy spectra.
We classify spectra according to their Halpha emission, which is closely
related to massive star formation. Overall we find 61% of galaxies are Halpha
emitters with rest-frame equivalent widths EW(Halpha) >= 2A. The emission-line
galaxy (ELG) fraction is smaller than seen in the CFRS at z = 0.2 and is
consistent with a rapid evolution of Halpha luminosity density. The ELG
fraction, and EW(Halpha), increase at fainter absolute magnitudes, smaller
projected area and smaller D_4000. In the local Universe, faint, small galaxies
are dominated by star formation activity, while bright, large galaxies are more
quiescent. This picture of the local Universe is quite different from the
distant one, where bright galaxies appear to show rapidly-increasing activity
back in time.
(Abridged)Comment: 40 pages, 25 figures, MNRAS, in pres
Formation and Reflection: The Dynamics of Theology in Christian Life
2001/10/25. Presents a view of theology he believes is a more authentic understanding embodied in the early church and shares how that view is rooted in Wesleyan theology and how it helps us to understand our history and future. The Paul T. Walls Lecture
Anticipating the New Creation: Wesleyan Foundations for Holistic Mission
This essay provides a brief orientation to the public debate over the last forty years about the implications of the Christian worldview for environmental concern. It then explores the mature writings of John Wesley (and some of Charles Wesley\u27s hymns), seeking to highlight those convictions that emphasize God\u27s care for the whole creation and that call upon us to participate in this care. These Wesleyan convictions are developed in direct dialogue with the most common charges leveled against the Christian worldview as unsupportive or even detrimental to environmental concern. The article also highlights how Wesley sharpened his commitment to those biblical themes most supportive of concern for the whole creation through his dialogue with the science of his day. The importance of this Wesleyan precedent for our own engagement with environmental issues is noted in some closing reflections
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