منابع مشابه
Crunch time
of the famous one-child policy, which Deng introduced in 1979, may be beginning to backfire. Economic analysts now fear that, if the officially reported fertility rate of 1.2 children per woman is correct, the side-effects of a greying society will kick in earlier than anticipated. Reports suggest that the dependency rate, i.e. the number of children and pensioners per 100 workforce, may reach ...
متن کاملStem cell crunch time
George Bush overruled senior Republicans last month, along with the vast majority of Americans, when he used the presidential veto for the first time to defeat a bill on stem cell research. The bill would have expanded US government funding to include embryos that did not exist before August 2001, when Bush announced a moratorium. Researchers believe newer stem cell lines are essential to reali...
متن کاملClimate-change crunch time
The Eiffel Tower's 20,000 lights were switched off at the beginning of the month to mark the launch in Paris of a long-awaited report from climate scientists on the evidence now amassing about global warming. The report on the science of global warming written by researchers on the UN's Intergovernmental Panel on Climate Change (IPCC), is based on research mostly already published, but aims to ...
متن کاملCrunch Time for Water Quality Trading
Economists have been promoting water quality (WQ) trading for decades. Over the past few years, many political leaders and upper-level government officials have been joining them. Money has even started to flow from Wash-ington to local trading organizations to help make WQ trading work. However, enthusiasm about WQ trading is based mostly on conceptual arguments about its potential to generate...
متن کاملBlack Crunch
We study the growth of fluctuations in collapsing cosmologies, extending old work of Lifschitz and Khalatnikov. As examples of systems where the fluctuations have a different composition than the background we study scalar fields with general improvement terms. Fluctuations always grow, and often dominate the homogeneous background. We argue that even for very dilute fluctuations, scattering pr...
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ژورنال
عنوان ژورنال: British Journal of General Practice
سال: 2009
ISSN: 0960-1643,1478-5242
DOI: 10.3399/bjgp09x453648