Challenges include the difficulty of storing and then shipping perishables, as well as the grocery industry's notoriously low margins.
The technical challenges include the difficulty in defining tractable single-gene trait development strategies, the logistics of moving traits from initial to commercial genetic backgrounds, and the disconnect between conditions in farmer's fields and controlled environments.
As fruitful as it may be, archaeology in Sudan faces many challenges, including the difficulty of protecting sites from development projects.
The independent feasibility study published in 2015 found that resettlement could be viable, but also highlighted significant practical challenges, including the difficulty of establishing modern public services, healthcare, education and economic opportunities, particularly job prospects.
It outlines some of the challenges, including the difficulty in diagnosing fluid overload reliably with current methods, and stresses the importance of personalised fluid therapy with physiological end-points to avoid the deleterious effects of fluid overload.
The calculation of perinatal death using the DHS dataset has recognized challenges including the difficulty of determining stillbirths; and calculation of intrapartum-related stillbirth is probably impossible with the DHS dataset.
However, direct assessment of health impacts of air pollution on individuals presents significant challenges, including the difficulty and expense of accurately assessing personal exposures [ 3, 4], variation in exposure in home versus school/work and outdoor versus indoor environments and exposure to tobacco smoke.
Even where there is support, it has been difficult to reach every woman and newborn with home visits (26), and there are implementation challenges including the difficulty of identifying all pregnant women, ensuring and maintaining skills for large numbers of workers, and tracking programme-relevant data collected at community level without overburdening community workers (35).
Edwards immediately encountered significant challenges, including the difficulties of administering a college across two campuses, as well as old prejudices and hard feelings among those still loyal to either Jefferson College or Washington College.
Generic challenges included the difficulties students experienced with regards to the new terminology; aspects of finding the literature; as well as understanding statistical concepts and critical appraisal.
Participant descriptions of the release process and their lives post-release overwhelmingly highlighted numerous acute challenges, including the difficulties managing their personal circumstances and environmental pressures while avoiding substance use relapse and criminal activity.
