This is likely to be largely due to the complexity of physiology involved in determining length of life, but may be also in part due to technical issues in experimental design hampering a clear path of progress [11].
Lack of reliable and efficient metastatic xenograft cancer models is hampering the progress of many preclinical studies, particularly for the purpose of drug evaluation.
Moreover, the quality of genotype data may vary across studies, thus hampering the progress of genetic map integration.
Nevertheless, in 2000, in one of Greece's closest elections, New Democracy narrowly lost to PASOK, which, though hampered by a lack of progress on economics, was rewarded by voters for its successes in foreign affairs (particularly its policies toward the EU and NATO and its attempt to improve relations with Turkey).
In 1913, as in 1912, wars and rumors of wars hampered the progress of archaeological exploration in classic lands, especially in the region of the eastern Mediterranean.
A lack of digital strategy is hampering charities' progress: 50% of charities don't have one.
However, evaluation of progress is hampered by lack of high quality data relating to supply and consumption.
The emergence of multi-drug resistant strains hamper the progress of current antimalarial therapy and displayed an urgent need for new antimalarials by targeting novel drug targets.
The lack of information regarding the gene content and genomic structure of gymnosperm cp genomes may severely hamper further progress of plant and cp genome evolutionary studies.
Beginning on and about November 22, 2009, The Pennsylvania State University began to receive numerous communications (emails, phone calls and letters) accusing Dr. Michael E. Mann of having engaged in acts that included manipulating data, destroying records and colluding to hamper the progress of scientific discourse around the issue of anthropogenic global warming from approximately 1998.
Nevertheless, in the majority of the cases, these anatomical variations do not hamper the progress of surgery.
