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Macro and micronutrient deficiencies pose serious health challenges globally, with the largest impact in developing regions such as subSaharan Africa (SSA), Latin America and South Asia. Maize is a good source of calories but contains low concentrations of essential nutrients. Major limiting nutrients in maize-based diets are essential amino acids such as lysine and tryptophan, and micronutrients such as vitamin A, zinc (Zn) and iron (Fe). Responding to these challenges, separate maize biofortification programs have been designed worldwide, resulting in several cultivars with high levels of provitamin A, lysine, tryptophan, Zn and Fe being commercialized. This strategy of developing single-nutrient biofortified cultivars does not address the nutrient deficiency challenges in SSA in an integrated manner. Hence, development of maize with multinutritional attributes can be a sustainable and cost-effective strategy for addressing the problem of nutrient deficiencies in SSA. This review provides a synopsis of the health challenges associated with Zn, provitamin A and tryptophan deficiencies and link these to vulnerable societies; a synthesis of past and present intervention measures for addressing nutrient deficiencies in SSA; and a discussion on the possibility of developing maize with multinutritional quality attributes, but also with adaptation to stress conditions in SSA.  相似文献   
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International Journal of Legal Medicine - Bromoform ingestion and toxicity is a rare finding. Historically, bromoform was therapeutically prescribed as a sedative in whooping cough, and accidental...  相似文献   
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Two females with sperm antibody activity in their blood serum and cervical mucus were treated with high dosages of methylprednisolone. Both patients became pregnant during therapy. Following the birth of their first offspring, one was treated with steroids and the other conceived without steroids in order to establish their second pregnancies. The sperm antibody activity showed a sharp decline in the blood serum and cervical mucus during therapy. The response of the females showed drastic modification in the antibody activity in that the females revealed a complete disappearance or a significant decrease in their initial sperm antibody reactions after treatment with high dosages of steroids.  相似文献   
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Irregularity of uterine contractions during labour was compared in 50 White and 50 Black patients. The standard deviation of distances between contractions as seen on cardiotocography and of maximal pressures was used to compare contraction regularity in the two groups of patients. A small standard deviation (SD) indicated regular contractions; a larger SD signified irregular contractions. Mean SDs of peak-to-peak and of base-to-base measurements were both 6,3 mm for White patients and both 7,6 mm for Black patients. The mean SD for maximal uterine pressures was 9,5 mmHg for White patients but 12,7 mmHg for Black patients. All these differences were statistically highly significant, and this implies that uterine contractions are more irregular in Black patients.  相似文献   
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Journal of Occupational Rehabilitation - Purpose This study investigated the effects of psychosocial working conditions on mental health-related long-term sickness absence and whether distress,...  相似文献   
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