It is notably challenging to fabricate heavily heteroatom-doped porous carbonaceous materials with narrow ultramicropore size distributions for highly effective mixed-gas separation.
Although animal models are useful to track the translocation of NPs in vivo, it is notably challenging to understand cellular and molecular mechanism of NPs in a spatiotemporal manner.
In practice, quartet topology estimation is notably challenging.
The performed analysis has revealed the great impact of fabrication tolerances for the coolant, film and clad temperature rises, particularly affecting safety margins during an ULOOP, while models and material properties uncertainties seem to dominate for the gap and fuel rises, which concur notably in challenging the respect of the fuel melting limit in an UTOP.
The study results provide a picture of a health service where at the strategic level there is a relatively strong strategic framework, but where key strategic challenges, notably the challenge of HIV/AIDS, have been fudged, since strategic aspirations have only partially been translated into operational objectives.
Perhaps most notably, the organization challenged the U.S. government's surveillance program that collects the telephone records of millions of Americans.
However, many, notably Elinder (1961 1 challenged the need to adapt messages and images, as he argued that consumer differences between countries are diminishing.
Notably, the animals challenged with the green mussel formulation significantly mitigated (P < 0.05) the carrageenan-induced paw edema in a time-dependent manner till the end of the 6th h as compared to negative control animals throughout the period of study).
Moreover, tenable views of "good" and "bad" that arose in the last few centuries are being radically challenged, most notably by the societal shifts spurred by digital media.
His strong words are particularly significant given that Nordhaus has, in the past, strongly challenged analyses — notably the Stern Review — pointing to high economic costs from global warming.
The FSOC's authority to designate "systemically important" nonbank institutions (FMUs, including clearing organizations and payment systems, and nonbank financial companies) has been criticized and challenged, most notably in the FSOC's rescission of GE Capital's designation as systemically important last year.
