For instance, a new donor-bridge-acceptor or DBA type conjugated block copolymer system has been successfully synthesized, characterized, and solar cells based on the new materials has been preliminarily tested revealing better performance of the block copolymer system versus the donor/acceptor simple blend system.
Blocking the renin-angiotensin system has been shown to prevent cardiovascular disease and delay the onset of diabetes.
"The system has been blocked up because of the problems with transfer into the Afghan system," Mr. Hammond said.
A controversial plan to display a cartoon of the Prophet Mohamed as an advertisement on the Washington DC Metro system has been blocked by transport officials.
There is a system for tracing bullets and shells back to the weapons that fired them and those weapons back to their owners, a system that would turn the guessing game of finding this killer into a science, but the system has been blocked by the N.R.A. because it smacks of a national gun registry.
Further study of the combined structural model and TLD blocks test as a system has been compared with the numerical simulations.
Regression of proteinuria and nephroangio-, glorerulo- or tubulointerstitial sclerosis by blocking the action of the renin-angiotensin system has been documented in several experimental models of progressive renal disease, such as chronic nitric oxide synthase inhibition, renal mass ablation, puromycin aminonucleoside [18] [20].
To clarify the mechanism of secondary salinization, studies on water and salt behavior were conducted in an irrigation block where a rice-based cropping system has been practiced.
Among them, the serotonin/5-hydroxytrptamine 3 receptor (5-HT3) and substance P/neurokinin-1 receptor (NK-1) systems have played important roles in controlling CINV, and blocking both systems has been demonstrated to reduce CINV in patients receiving chemotherapy [ 3– 5].
The president's attempts at reforming the system have been blocked by his conservative opponents.
