منابع مشابه
Long - Term Earnings Losses due to Mass
This paper uses longitudinal data from Social Security records covering up to 30 years of earnings to present the first national estimates of the long-term cost of job displacements during the 1982 recession. We use a new longitudinal data set containing firm size to isolate workers who separate from their stable job during a sudden mass-layoff. When we compare the workers displaced from their ...
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General relativity(GR) is the current description of gravity in modern physics. One of the cornerstones of GR, as well as Newton's theory of gravity, is the weak equivalence principle (WEP), stating that the trajectory of a freely falling test body is independent of its internal structure and composition. WEP is known to be valid for the normal matter with a high precision. However, due to the ...
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an experiment was conducted to evaluate the effect of lime application on the mass and sugar losses reduction from 2004 to 2005 in karaj. four lime concentrations of 0, 3, 4 and 5 percent (factor a) and storage durations of 30 and 60 days (factor b) were arranged as factorial experiment in rcbd with four replications. the commercial variety of shirin was drilled in early may and storage roots w...
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ژورنال
عنوان ژورنال: Nature
سال: 1969
ISSN: 0028-0836,1476-4687
DOI: 10.1038/224980b0