As with many longitudinal studies involving palliative care populations there is a sizeable proportion of missing values in the ketamine sample data. Palliative care patients’ health declines over time, fatigue may be more of an issue compared with other study populations, and outcome measurement can become burdensome, more readily leading to non-response or drop out. The missing values reduce the power to reject a false null hypothesis of no relationship between the chosen measures due to the smaller sample size from complete case analysis, particularly for weaker relationships. There was a higher proportion of missing data for the EOLPRO compared with the other QOL measures possibly due to outcome measure ordering as the EOLPRO was administered after the EORTC QLQ-C15PAL and clinical measures. In a palliative care population, earlier administered outcome measures may be more likely to be completed given outcome measurement burden in this frail population. This finding further supports keeping measurement as simple as possible in a palliative care population. The ketamine study population comprised solely of inpatients with chronic cancer pain who self-administered the EOLPRO after the EORTC QLQ-C15-PAL questionnaire. Validity, reliability and responsiveness of the EOLPRO can only be ascertained for similar administration conditions and patient populations. The need for energy security, the state of the global petroleum supply, increased air pollution, and climate changes have demanded the production of sustainable and renewable biofuels. Bioethanol is currently the most widely used liquid biofuel and is used as both a fuel and a gasoline enhancer. However, increasing bioethanol production is beginning to cause several problems. For example, the cultivation of crops for fuel is resulting in BKM120 PI3K inhibitor competition for cropland, and the establishment of large palm and sugarcane plantations is destroying native ecosystems. The need to resolve the competition between food and fuel has sparked a strong interest in developing new biofuel crops. Indeed, sweet sorghum Moench) has become one of the most promising crops for fuel ethanol production, as it produces grains with high starch content, stalks with high sucrose content, and leaves with a high lignocellulosic content. Additionally, sweet sorghum exhibits high photosynthetic efficiency, a short growth period, increased drought and saline-alkali resistance, low fertilization requirements, and a wide cultivation range. These characteristics suggest that sweet sorghum possesses a high potential for large-scale ethanol production and related comprehensive use, and this plant has been considered as a promising alternative feedstock for bioethanol production worldwide. However, it remains unclear how sweet sorghum can be costeffectively utilized for ethanol production, which is an urgent problem that needs to be resolved.