James East

1Tsukasa Ishida
1Manuel Rodriguez-Justo
1Shinwa Tanaka
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  • Simon J Leedham, Pedro Rodenas-Cuadrado, Kimberley Howarth, Annabelle Lewis, Sreelakshmi Mallappa, Stefania Segditsas +9 others
  • 2013
OBJECTIVE Wnt signalling is critical for normal intestinal development and homeostasis. Wnt dysregulation occurs in almost all human and murine intestinal tumours and an optimal but not excessive level of Wnt activation is considered favourable for tumourigenesis. The authors assessed effects of pan-intestinal Wnt activation on tissue homeostasis, taking(More)
We study the singular part of the partition monoid P n ; that is, the ideal P n \ S n , where S n is the symmetric group. Our main results are presentations in terms of generators and relations, and we also show that P n \ S n is idempotent generated, and that its rank and idempotent-rank are both equal to n+1 2 = 1 2 n(n + 1). One of our presentations uses(More)
BACKGROUND AND STUDY AIMS During colorectal endoscopic submucosal dissection (ESD), the feature of a muscle layer being pulled toward a neoplastic tumor is sometimes detected. We call this feature the muscle-retracting sign (MR sign). The aim of this study was to evaluate whether the MR sign is associated with particular types of neoplastic lesions and(More)
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