Photochemical Production of Vitamin D2, Scale-up and Optimization

Production Scale Up of Nanofibers: A Review

production scale up of nanofibers: a review

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Effect of wavelength on the photochemical reaction of ergocalciferol (vitamin D2) irradiated by monochromatic ultraviolet light.

The effect of wavelength on the photochemical reaction of ergocalciferol (vitamin D2) was investigated. An ergocalciferol solution in ethanol was irradiated by monochromatic UV light of various wave lengths with a fixed quantum (8.0•~108erg/cm2), trimethylsilylated and then applied to a capillary column GLC as described previously (10) in order to estimate the reaction products. The results sho...

construction and validation of the translation teacher competency test and the scale of students’ perceptions of translation teachers

the major purpose of this study was to develop the translation teacher competency test (ttct) and examine its construct and predictive validity. the present study was conducted in two phases: a qualitative phase as well as a quantitative phase. in the first phase of the study, the author attempted to find out the major areas of competency required for an academic translation teacher. the second...

Vitamin D2 treatment for vitamin D deficiency and insufficiency for up to 6 years.

T he worldwide prevalence of vitamin D deficiency is striking, and more than 40% of the population may be vitamin D deficient. Despite this, to our knowledge there are no long-term studies of the safety and efficacy of giving pharmacologic doses of vitamin D (50 000 IU of ergocalciferol [vitamin D2]) to treat and prevent vitamin D deficiency. Furthermore, there is a concern that ergocalciferol,...