It is the fixed costs that limit the diffusion of the networks.

But connecting to these networks involves fixed costs.

Th1 cells can recruit other phagocytes to the site of the infection in several ways.

Phagocytes form part of the innate immune system, which animals, including humans, are born with.

The North American Celica had fixed door mirrors and amber front corner lights.

The US Treasury welcomed government intervention in exchange rate markets, and encouraged the IMF to support such interventions with mega billion dollar loans to crisis countries.

Until Argentina's peso imploded, fixed exchange rates were fine.

Remember, that we have to pay 250 in terms of fixed cost, plus another 60 of labor.

First, they can grow in sites that phagocytes are not capable of traveling to (e.g., the surface of unbroken skin).

Phagocytes, in particular dendritic cells and macrophages, stimulate lymphocytes to produce antibodies by an important process called antigen presentation.

The body has to rid itself of millions of dead or dying cells every day, and phagocytes play a crucial role in this process.

The only viable regimes, indeed, in our globalized financial world are floating exchange rates and irretrievably fixed rates.

Third, the World Bank and the Inter American Development Bank, both development institutions, should not be misused for short term bailouts.

In many ways these developments were advantageous, but they made currencies more vulnerable and fixed exchange rates more problematic.

Fourth, the IMF and others should stop peddling monetary mischief such as currency boards and fixed exchange rates.

Antigen presentation Antigen presentation is a process in which some phagocytes move parts of engulfed materials back to the surface of their cells and present them to other cells of the immune system.

Through most of the period since 1945, fixed rates were protected by capital controls and exchange restrictions.

Like animal phagocytes, it engulfs bacteria by phagocytosis mainly through Toll like receptors, and it has other biological functions in common with macrophages.

Dendritic cells (DC) are phagocytes in tissues that are in contact with the external environment therefore, they are located mainly in the skin, nose, lungs, stomach, and intestines.

Although phagocytes and other components of the innate immune system can, to a limited extent, control viruses, once a virus is inside a cell the adaptive immune responses, particularly the lymphocytes, are more important for defense.

Europe's Stability Pact which underpins the euro by setting fixed constraints on the size of budget deficits for euro members is in trouble. The European Union's leading country, Germany, failed to meet its commitments to its EU partners concerning its deficit.

Europe's Stability Pact which underpins the euro by setting fixed constraints on the size of budget deficits for euro members is in trouble.

As long as exchange rates were fixed under the Bretton Woods system, the nature of that privilege was clear the US was the only country that could freely determine its own monetary policy.

This reflects the fact that cellphone towers and handsets are much cheaper than pipes and copper wires, making it possible for the poor to pay the fixed costs.

Recent short term bank lending from Tokyo, New York, Frankfurt, and London to East Asian banks and businesses are an example of how financial integration and deregulation made fixed exchange rates vulnerable.

Fixed exchange rates within the eurozone impose a constraint that simply does not exist in the UK or the United States, and quantitative easing by the Bank of England and the Federal Reserve is unconditional in nature.

Whatever the exchange rate regime, fixed or floating, which a country adopts it is surely unwise to promote or even allow net import of foreign capital in such transient liquid form as developing markets have done over the course of this decade. Governments and central banks should use their powers to steer the import of foreign capital into direct fixed investment, equity, and to a limited extent long term hard currency debt.

Governments and central banks should use their powers to steer the import of foreign capital into direct fixed investment, equity, and to a limited extent long term hard currency debt.

But fixed exchange rates often lead to undervaluation (as in China) or overvaluation (as in Argentina at the beginning of the 2000 s, and, in a different context, several eurozone countries now).