The porous frontier separating the United States and Mexico and lower water levels along the Rio Grande in recent years have made it easier for ticks to cross the border on stray cattle.
The jagged, disputed frontier separating Sudan from its newly independent neighbor is now probably the most incendiary fault line in Africa, with two big armies that fought each other for generations massing on either side.
All these results indicate the complexity of the FGFR4 signalling pathway and the weak frontier separating normal from malignant cell proliferation.
The Western Desert, inside the Egyptian frontier, separated the two sides on that front.
The hostilities in North America were further encouraged by existing frictions along the frontier areas separating the colonies of these powers.
When we repeated the same tests for the y axis, we observed a second frontier, horizontal, separating the "lower" crenarchaeotes from the "higher" Thermococcales/Methanobacteriales/Methanococcales/Thermoplasmatales.
Similarly, new frontiers often separated monasteries from distant properties on whose income they relied.
Completed in 1885, the Canadian Pacific Railway (CPR) was, and remains, much more than an engineering wonder: it defined a fledgling nation, uniting its far-flung extremities and stitching a ribbon of human settlement through the vast frontier wildernesses that separated them.
Note that according to Corollary 1 and Fig. 3, the frontier between regions A and D is the same as that separating regions B and C, which in turn, is the same as the frontier that separates the regions determining the sign of the advertising comparisons in Fig. 2.
Other important Paleolithic sites that have been excavated include those at Hunsgi in Karnataka state, at Sanghao cave in North-West Frontier Province, Pak., and in the Vindhya Range separating the Ganges basin from the Deccan plateau.
