The possible production of a heat-stable enterotoxin (Vc-H-ST) by Vibrio cholerae non-O1 serogroup Hakata was investigated, and the purified Vc-H-ST was characterized. It has a unique amino acid sequence, LIDCCEICCNPACFGCLN. This sequence is quite similar to that of the heat-stable enterotoxin (NAG-ST) produced by V. cholerae non-O1 except for one amino acid (leucine) residue excess at the N te...

Retrieval of a subset of studied items and the presentation of those items as retrieval cues typically impair retrieval of the other items. Previous research on this self-limiting property of memory retrieval has relied heavily on short retention intervals and similar context between encoding and test. Here, we examined retrieval dynamics also after a prolonged retention interval with different...

The introductory chapter, written by Werner Eichhorst and Paul Marx, opens with a generally accepted proposition that European labour markets are undergoing a process of deep transformation characterised by deindustrialization and the growth of non-standard work. This premise is further supported and elaborated through specific insights which establish the general framework for this book. For i...

SIR,-Your leading article (30 January, p. 247) on "New-style Cold Abscesses" is valuable in drawing attention to two recent papers in the British Youmal of Surgery12 which describe a clinical manifestation of tuberculosis relatively much more common in the immigrant section of our population. These subcutaneous cold abscesuses, which are quite often multiple, are a form of tuberculous disease w...