Zobrazeno 1 - 10
of 37
pro vyhledávání: '"J K Ritchie"'
Autor:
S. J. K. Ritchie
Publikováno v:
Journal of Materials Science. 35:5829-5837
A model for the large strain deformation of polyethylene under uni-axial tension is described. Based on observations made by other researchers, the model describes hardening at large strains by considering dislocation nucleation and reorientation of
Autor:
S J K Ritchie, P S Leevers
Publikováno v:
The Journal of Strain Analysis for Engineering Design. 34:303-311
The double torsion fracture test has been widely used in the past for measuring resistance to crack growth under static loading and, more recently, under high-loading-rate conditions. Specimen deformation in this test is conventionally analysed on th
Autor:
S J K Ritchie, P S Leevers
Publikováno v:
The Journal of Strain Analysis for Engineering Design. 34:313-322
Part 1 of this paper developed a one-dimensional fourth-order partial differential equation for dynamical torsion of rectangular beams. It was then validated against static and dynamic test cases. This concluding part applies the equation to the doub
Publikováno v:
Gut. 35:1070-1075
Between 1976 and 1985, 110 patients had restorative proctocolectomy or proctectomy for ulcerative colitis and 103 were followed up until death or February 1992. There was one postoperative and one late death related to surgery. The cumulative probabi
Autor:
J K Ritchie, A M Balkwill, M Dickson, William Connell, John E. Lennard-Jones, Michael A. Kamm
Publikováno v:
The Lancet. 343:1249-1252
The incidence of various cancers, especially non-Hodgkin lymphoma (NHL), is higher among patients who receive azathioprine for immunosuppression after organ transplants than in the general population. We have studied the risk of neoplasia after azath
Autor:
J. P. S. Thomson, R. Garcia-Duperly, E. E. Londono-Schimmer, R. J. Nicholls, J. K. Ritchie, P. R. Hawley
Publikováno v:
International Journal of Colorectal Disease. 9:110-113
Disruption of the anal sphincter results from obstetric injury, ano-rectal operations or external trauma. Obstetric or surgical division of the sphincteric mechanism may not be immediately apparent and the clinical presentation of incontinence may oc
Publikováno v:
Gut. 34:1081-1085
Myelosuppression is an important and potentially lethal complication of azathioprine treatment. The blood count has been reviewed in all patients treated with azathioprine for inflammatory bowel disease over 27 years in one hospital. Altogether 739 p
Publikováno v:
British Journal of Surgery. 77:618-621
The argument for and against high ligation of the inferior mesenteric artery in rectal cancer has yet to be resolved. Between 1948 and 1983, 4250 patients underwent surgery for rectal carcinoma at St. Mark's Hospital, London. From these, 250 patients
Publikováno v:
British Journal of Surgery. 81:1235-1237
Diffuse cavernous haemangioma of the rectum is an unusual lesion. In 1971 Parks and co-workers described resection and coloanal sleeve anastomosis as an alternative operation in the treatment of this rare malformation. The clinical presentation, diag
Publikováno v:
International journal of colorectal disease. 11(2)
Purpose: To compare the incidence of stenosis after hand-sewn and stapled ileoanal anastomosis. Stenosis of the ileoanal anastomosis occurs in 5–16% of patients undergoing a restorative proctocolectomy but the incidence using a stapled technique is