نتایج جستجو برای: rates
تعداد نتایج: 435722 فیلتر نتایج به سال:
Climate warming is predicted to negatively impact fish populations through impairment of oxygen transport systems when temperatures exceed those which are optimal for aerobic scope (AS). This concept of oxygen- and capacity-limited thermal tolerance (OCLTT) is rapidly gaining popularity within climate change research and has been applied to several fish species. Here, we evaluated the relevance...
• U.S. real exchange rate fluctuations are not primarily driven by oil market shocks. We quantify the effect of exogenous shocks on price oil. causal interest price. find support for standard model commodity determination. Some implications this robust to allowing additional channels. There has been much in relationship between crude oil, value dollar, and since 1980s. For example, sustained su...
Comparisons between in situ measurements of surface chlorophyll-a concentration (CHL) and ocean color remote sensing estimates were conducted during an oceanographic cruise on the Brazilian Southeastern continental shelf and slope, Southwestern South Atlantic. In situ values were based on fluorometry, above-water radiometry and lidar fluorosensor. Three empirical algorithms were used to estimat...
Host populations tend to show less ability to discriminate against parasites when living in their absence. However, comparison of rejection rates among sympatric and allopatric host populations does not allow determination of whether the greater tolerance in allopatric populations reflects a genetic change or phenotypic plasticity. Here we test the existence of changes in a host’s adaptation to...
. Abstract We have developed a Clock Multiplying Unit and 4 to 1 Multiplexor (CMUIMUX 4:l) that operates up to 47Gb/s. The on board VCO is LC tuned and the output clock jitter is Lpspp. The eye diagram of the output is 400mV swing with rise and fall times of less than 9ps. This integrated circuit was processed in a 120GHz BICMOS 0.25um process. Power dissipation is only 1W for a chip area of Zm...
Dietary restriction (DR)-related delay of ageing is hypothesized to be mediated by the reduction of the metabolic rate (MR). However, studies on the effect of DR on MR have produced equivocal results. We demonstrated that this lack of congruency can be due to a variation in the initial level of MR within a given pool of experimental subjects. We subjected laboratory mice from two line types div...
Global-scale attacks like worms and botnets are increasing in frequency, severity and sophistication, making it critical to detect outbursts at routers/gateways instead of end hosts. In this paper, leveraging data streaming techniques such as the reversible sketch, we design HiFIND, a High-speed Flow-level Intrusion Detection system. In contrast to existing intrusion detection systems, HiFIND: ...
We studied the rates of seed removal by different granivores, in different microsites, at different times, in a Patagonian shrub steppe in South America. Granivory rates of exotic (Phalaris canariensis) and native (Mulinum spinosum) seed species were an order of magnitude lower than those reported for another cool desert from North America with comparable climatic conditions. Insects and rodent...
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