Bl Introduction Bl Acknowledgments B3 Description and interpretation of individual quartzite occurrences B3 Hamilton Mounds B3 Necedah area B6 Baraboo area B6 Waterloo area BIO Vesper quarry Bll Veedum area Bll Conglomerate at Hamann Creek B12 Rib Mountain B12 Quartzite at McCaslin and Thunder Mountains B12 Barron Quartzite and quartzite at Flambeau Ridge B14 Summary of interpretations B15 Age ...

A self-complementary, artificial vitamin B12 derivative dimerises in an unprecedented "intra base off/inter base on" coordination mode.

......................................................................................................................................... ii Preface ........................................................................................................................................... iv Table of

Vitamin B12 deficiency leads to serious health problems, whilst sub-optimal status is associated with raised biochemical markers of disease risk. Identifying at-risk groups could benefit both individuals and public health. Dietary data were sourced from the New Zealand Adult Nutrition Survey 2008/2009, involving a nationally representative sample of 4721 participants. Ethnic groupings were by r...

Accumulation of methylmalonic acid may provide an early clue to deficiency of cobalamin (vitamin B12) in tissue. Metabolic abnormalities involving precursors of methylmalonic acid are frequently observed in patients with hepatic diseases. To establish whether methylmalonic acid accumulates and thereby gives false-positive test results for cobalamin deficiency, we measured the concentration of m...