Although significant progress has been made in recent years, a few fundamental questions remain unclear concerning the development of TDC.
Although significant progress has been made in demand response, there are outstanding barriers to overcome to further its performance.
Although significant progress has been made to understand this phenomenon, so far there has been no effective parameter to quantify growth restriction.
Although significant progress has been achieved in uncovering the molecular barriers to direct reprogramming in mice, research in reprogramming human cells lags far behind.
Although significant progress has been made, more research is required to improve our understanding and optimization of the heteroepitaxy of InN on GaN.
Although significant progress has been made in understanding their biological roles in Arabidopsis, those functions in rice, a model crop plant, have not been well studied.
Although significant progress has been made in highway tunnel construction and operation (including management) in recent years, there are problems in need of further research.
Although significant progress has been made with regard to the design of enzyme immunoassays for IFN-γ, this assay is still labor-intensive and time-consuming.
Although significant progress has been made in elucidating the molecular events underlying these processes, their relevance to normal cell function remains largely unexplored.
Although significant progress has been made to uncover genetic alterations in HCCs, our understanding of genetics involved in the initiation and progression of HCC is far from complete.
Although significant progress has been achieved, effective oral delivery of protein drugs such as insulin by nanoparticle-based carrier systems still faces certain formidable challenges.
