Among the many parameters affecting the design of hydraulic structures on fissured rocks are orientation of principal permeability axes and degree of anisotropy of fissured rocks. Geological explorations rarely provide this type of information. If at all the information is available, methods employed are computationally cumbersome and inefficient. A new concept of simple equations and geometric...

language and culture are now deemed to be co-constitutive; hence english language teaching (elt) textbooks should incorporate cultural aspects and promote intercultural competence. however, careful decisions should be made as regards to the cultural content of materials and the ways in which culture is represented. this study was an attempt to deconstruct the patterns of cultural representation...

Carl Sandburg, in his "The People, Yes," writes of the meeting of an Indian and a white man. The latter, impressed with his own importance, draws a small circle in the sand and says, "This is what the white man knows." The Indian, the much wiser of the two, draws an enormous circle and then correctly points out, "This is where the white man and the red man know nothing." Sandburg's story is an ...

The fact that flat principal circle bundles are characterized by having zero real Euler classes has proved important in recent years in understanding whether total spaces of vector bundles over nonnegatively curved manifolds must support metrics with nonnegative curvature as well (see Theorem 6.3 and the discussion afterwards). Unfortunately, the proofs of this fact of which we are aware use ei...

Nucleic acid amplification is a hugely important technology for biology and medicine. While the polymerase chain reaction (PCR) has been highly useful and effective, its reliance on heating and cooling cycles places some constraints on its utility. For example, the heating step of PCR can destroy biological molecules under investigation and heat/cool cycles are not applicable in living systems....