Fetal MRI has overcome many of the obstacles associated with sonography with the advent of ultrafast T2-weighted imaging, yielding images of high soft-tissue contrast and spatial resolution [4].
However, many obstacles are associated with effective utilization of lignocellulosic materials.
The Davis case is an extreme illustration of the many oddities — some would call them grotesqueries, and others procedural obstacles — associated with the death penalty in America today.
The inability of many microbes to metabolize the xylose that is abundant within hemicellulose poses challenges for microbial biofuel production from cellulosic material; the obstacles associated with the use of lignocellulosic biomass have been explained [ 6].
As Jessica neared high school, she began to consider the obstacles associated with being undocumented.
Introducing rehabilitation services at a local or community level removes many obstacles to care that are associated with traditional institutional care.
However, the use of human primary cells is associated with many obstacles, and the development of alternatives and an unlimited cell source is one of the most urgent challenges.
Although most people may not associate life sciences with their daily routine, negotiating the many obstacles of a normal day draws on a basic understanding of and literacy in life sciences.
Worldwide efforts to eliminate TB are confronting many obstacles, including drug-resistant pathogens, compliance with complicated drug regimens, and compromised immune systems associated with human immunodeficiency syndrome or acquired immunodeficiency syndrome [ 39].
Worldwide efforts to treat and eliminate TB are confronting many obstacles, including drug-resistant bacterial strains, lack of compliance with the complicated drug regimens, and an increased patient population with compromised immune systems associated with acquired immunodeficiency syndrome [ 3, 4].
