In Lecture 13 we have studied the representation theory of Uq(g) when q is not a root of 1. We have seen that the representation theory basically looks like the representation theory of g (over C). In this lecture we are going to study a more complicated case: when q is a root of 1 (we still need to exclude some small roots of 1 to make the algebra Uq(g) defined). When we deal with the usual de...

The chemical structures of AT2433-A1 (2), AT2433-A2 (3), AT2433-B1 (4) and AT2433-B2 (5) were elucidated by degradation and spectroscopic studies. Compounds 2-5 are disaccharides closely related to rebeccamycin. The aglycone in 2 and 3 was determined to be 6-N-methyl-11-chloro-5H-indolo[2,3-a]pyrolo[3,4-c]carbazole and in 4 and 5 it was determined to be 6-N-methyl-5H-indolo[2,3-a]pyrolo[3,4-c]c...

Several papers in the BJPsych this month present findings that challenge accepted notions in psychiatry, and one paper focuses specifically on the extent to which the findings of highly cited papers are subsequently replicated. Tajika et al (pp. 357–362) identified highly cited studies claiming evidence of effective treatments reported in a range of high-impact general medical and psychiatric j...

Gunnell et al (pp. 298–305) investigate whether the established association between impaired intellectual performance and schizophrenia is due to the confounding influence of adverse prenatal and early childhood exposures on both intellectual development and the risk of schizophrenia. By studying a large cohort of Swedish male conscripts, results show that the association is not explained by ce...

this experiment was conducted to determine the effects of either twice or thrice a day feeding regimens on performance and as well on plasma hormone and metabolite levels of broiler breeder hens during 24 to 38 wk of their productive age. breeder pullets were provided form a commercial flock, and distributed in experimental units, in a compeletly randomized design with three feeding regimens (t...