Jesus in Latin America

Reviewed Book: Sobrino, Jon. Jesus in Latin America. Maryknoll, NY: Orbis Books, 1987

Thousand to one

Exodus 20:1-1

American Indians and Christian Missions: Studies in Cultural Conflict

Reviewed Book: Bowden, Henry Warner. American Indians and Christian Missions: Studies in Cultural Conflict. [S.l.]: Univ of Chicago Press, 1981. Chicago History of American Religion

Would You Believe It

1 Kings 17:8-16; Mark 12:41-4

ISSUES IN HAZARDOUS WASTE MANAGEMENT: DISCUSSION

Resource /Energy Economics and Policy,

Broad iron lines in neutrons stars: dynamical broadening or wind scattering?

Broad iron emission lines are observed in many accreting systems from black holes in AGN and X-ray binaries to neutron star low-mass X-ray binaries. The origin of the line broadening is often interpreted as due to dynamical broadening and relativistic effects. However, alternative interpretations have been proposed, included broadening due to Compton scattering in a wind or accretion disk atmosphere. Here we explore the observational signatures expected from broadening in a wind, in particular that the iron line width should increase with an increase in the column density of the absorber (due to an increase in the number of scatterings). We study the data from three neutron star low-mass X-ray binaries where both a broad iron emission line and absorption lines are seen simultaneously, and show that there is no significant correlation between line width and column density. This favors an inner disk origin for the line broadening rather than scattering in a wind.Comment: 5 pages, 1 table, 5 figures, accepted for publication in Ap

Predictability of weather and climate in a coupled ocean-atmosphere model: A dynamical systems approach

A dynamical systems approach is used to quantify the instantaneous and time-averaged predictability of a low-order moist general circulation model. Specifically, the effects on predictability of incorporating an active ocean circulation, implementing annual solar forcing, and asynchronously coupling the ocean and atmosphere are evaluated. The predictability and structure of the model attractors is compared using the Lyapunov exponents, the local divergence rates, and the correlation, fractal, and Lyapunov dimensions. The Lyapunov exponents measure the average rate of growth of small perturbations on an attractor, while the local divergence rates quantify phase-spatial variations of predictability. These local rates are exploited to efficiently identify and distinguish subtle differences in predictability among attractors. In addition, the predictability of monthly averaged and yearly averaged states is investigated by using attractor reconstruction techniques