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twine is the second homolog of the fission yeast gene cdc25 to be found in Drosophila. Both string and twine cDNAs can rescue a temperature-sensitive cdc25 mutation in fission yeast, but not a deletion. We detect the expression of string but not twine transcripts in the proliferating cells of newly cellularized embryos, in third instar larval brains, and in(More)
The atomic and electronic structure of a tilt grain boundary in rutile TiO 2 has been calculated in an ab initio manner. The method employs a plane-wave basis set and optimised pseudopotentials and is carried out within the local density approximation of density functional theory. The study focuses on the structure and energy of the P = 15 36:9 (210))001](More)
We describe an unusual Antennapedia class homeobox gene from the grasshopper Schistocerca gregaria (Orthoptera, African Plague Locust). Its sequence is not sufficiently similar to that of any other insect Hom-Hox gene to identify it unambiguously, but short conserved elements suggest a relationship to the segmentation gene fushi-tarazu, (ftz). We term it Sg(More)
We have cloned a homologue of the homeotic gene Abdominal-B from the locust Schistocerca gregaria and raised antibodies against the homeodomain and C-terminal flanking region of the encoded protein. This antibody stains the posterior abdomen of the developing Schistocerca embryo from 26% of development onwards, a stage when only the anterior of the abdomen(More)
  • A Ahmad, Z Albrechtskirchinger, P P Allport, J Alonso, L Andricek, R J Apsimon +211 others
  • 2007
This paper describes the AC-coupled, single-sided, pin -n silicon microstrip sensors used in the Semiconductor Tracker (SCT) of the ATLAS experiment at the CERN Large Hadron Collider (LHC). The sensor requirements, specifications and designs are discussed, together with the qualification and quality assurance procedures adopted for their production. The(More)
The challenges for the tracking detector systems at the LHC are unprecedented in terms of the number of channels, the required read-out speed and the expected radiation levels. The ATLAS Semiconductor Tracker (SCT) end-caps have a total of about 3 million electronics channels each reading out every 25 ns into its own on-chip 3:3 ms buffer. The highest(More)
OBJECTIVE The aim of this study was to review the results and long-term outcome after total mesorectal excision (TME) for adenocarcinoma of the rectum in an unselected population in a community teaching hospital. MATERIALS AND METHODS Between 1996 and 2003, 210 patients with rectal cancer were identified in our prospective database, containing patient(More)
The irradiation facility at the CERN proton synchrotron, setup to irradiate full-size prototypes of silicon micrsostrip detectors for the ATLAS semiconductor tracker, is described and measurements of the detector currents during irradiation are reported. The detector dark currents can be described by bulk radiation damage models demonstrating the radiation(More)
Strain effects, particularly in phase transitions" Phil. initio total energy study of uncharged 2:1 clays and their interaction with water"Computer simulations of domain growth and phase separation in two-dimensional binary immiscible fluids using dissipative particle dynamics" Phys. investigation of a grain boundary in a transition metal oxide" in(More)