منابع مشابه
The Wheres and Whyfores for Studying Textual Genre Computationally
This brief paper gives an example of statistical stylistic experimentation and argues for more informed measures of variation and choice and more informed measures of readership analysis to be able to posit dimensions of textual variation usefully.
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| The MPI 1:1 de nition includes routines for nonblocking point-to-point communication that are intended to support the overlap of communication with computation. We describe two experiments that test the ability of MPI implementations to actually perform this overlap. One experiment tests synchronization overlap, and the other tests data-transfer overlap. We give results for vendorsupplied MPI...
متن کاملDude, Wheres My Job?The Impact of Immigration on the Youth Labor Market
Most studies about the labor market impact of immigration limit their analysis to the adult native population. This paper shows that teen employment is signi cantly more responsive than adult employment to immigration, and that growth in low-skilled immigration appears to be an important cause of recent declines in teen employment rates. Using variation in immigrant shares across metropolitan a...
متن کاملGlobal warming
The role of General Circulation Models (GCMs) has become predominantly important as the practical interest in regional impacts from anthropogenic greenhouse gases such as carbon dioxide (CO2) grows. This first report documents the quality of GCMs as a tool for describing and predicting ‘global warming’ and the related geographical pattern of climate change from the CO2 added to Earth’s atmosphere.
متن کاملLocal Warming
Using 55 years of daily average temperatures from a local weather station, I made a least-absolute-deviations regression model that accounts for three effects: seasonal variations, the 11-year solar cycle, and a linear trend. The solution correctly identifies the period and phase of the solar cycle. It also indicates that temperatures have gone up by about 2 ◦F over the 55 years covered by the ...
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ژورنال
عنوان ژورنال: Science
سال: 2013
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.340.6129.123-a