Words similar to barriers
Example sentences for: barriers
How can you use “barriers” in a sentence? Here are some example sentences to help you improve your vocabulary:
Meanwhile, Japan, China, and other Asian nations have adopted mercantilist trade strategies: that is, they have sought, through barriers or government subsidies, to guarantee surpluses.
Thus the cell does work, both to construct constraints and to modify those constraints, by raising or lowering potential barriers such that chemical energy is released.
Since, the TAR is located at the 5' end of all HIV-1 RNA transcripts and the presence of secondary structure at or near the 5' end of RNAs reduces the accessibility of the 5' cap to eIF4F, it is thought that this feature of HIV-1 mRNAs can inhibit their cap-dependent translation [ 44 45 46 ] . Therefore, a possible function of the HIV-1 gag IRES might be to serve as a mechanism to bypass the structural barriers to cap-dependent translation by recruiting ribosomes easily and directly to the gag ORFs.
In some circumstances, CD4 +and CD8 +T cells were rendered inactive in tumor-bearing hosts [ 8 ] . The inactivation of CD4 +T cells has been attributed either to the tumor cells themselves or to bone marrow-derived cells [ 9 10 11 ] , whereas antigen ignorance or loss of memory have been postulated to underlay that of CD8 +T cells [ 12 13 ] . Other studies have suggested that tumor cells can secrete immunosuppressive factors such as TGF-β or express Fas ligand to induce apoptosis of infiltrating lymphocytes [ 14 15 16 ] . Furthermore, the tumor vasculature appears to be quite different from normal blood vessels, in terms of structural organization, interstitial pressure, and flow patterns [ 17 ] , and in reduced lymphocyte and natural killer cell homing and adhesion [ 18 19 20 21 ] . The existence of significant barriers to effective immunological destruction is further illustrated by a mouse model of concurrent multistage tumorigenesis and anti-oncogene autoimmunity, wherein progenitor dysplastic lesions are infiltrated and disrupted, while solid tumors are not [ 22 ] . The hypothesis is that the microenvironment of certain types of solid tumor can serve to locally suppress T cell infiltration.
Agencies Addressed Barriers To Efforts That Empowered And Involved Employees
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