منابع مشابه
Under pressure
The movement of water by osmosis causes pressure differences that drive the transport of sugars over long distances in plants.
متن کاملUnder pressure.
Abstract A variety of public campaigns, including the “Just Say No” campaign of the 1980s and 1990s that encouraged teenagers to “Just Say No to Drugs”, are based on the premise that teenagers are very susceptible to peer influences. Despite this, very little is known about the effect of school peers on the long-run outcomes of teenagers. This is primarily due to two factors: the absence of inf...
متن کاملHotelling Under Pressure
We show that crude oil production from existing wells in Texas does not respond to current or expected future oil prices, contradicting a basic prediction of Hotelling’s (1931) canonical model of exhaustible resource extraction. In contrast, the drilling of new wells exhibits a strong price response, as does the rental rate on drilling rigs. To explain these observations, we reformulate Hotelli...
متن کاملBiocides under Pressure
The European Coatings Conference "Novel Biocide Technology" in Berlin. Dirk Meine. On 6 and 7 February, 98 biocide experts from 16 countries met in Berlin to discuss innovations regarding antimicrobial agents for in-can and film conservation in view of the implications of the new EU Biocidal Products Directive. The intensive discussions during the conference made quite clear: There are highly i...
متن کاملEndothelial function under pressure.
In the study entitled “Men Born in 1914,” a reduction of pulse-wave amplitude during reactive hyperemia was found to be predictive of long-term cardiovascular events (1). Of particular note is the fact that these observations were made many years before the whole concept of endotheliumdependent vasoreactivity and its mediators was elaborated (2). Therefore, this study was the first to subsequen...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2000
ISSN: 0108-7673
DOI: 10.1107/s0108767300024697