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The current study investigated the short-term physiological implications of plant nitrogen uptake of urea amended with the urease inhibitor N-(n-butyl) thiophosphoric triamide (nBTPT) under both greenhouse and field conditions. 15N labelled urea amended with 0.0, 0.01, 0.1 and 0.5% nBTPT (w/w) was surface applied at a rate equivalent to 100 kg N ha−1 to(More)
Psychological and social adjustment was assessed in eighty-nine individuals with familial polyposis, a genetically transmitted disease placing one at high risk for colon cancer. Three illness-related concerns were identified: fear about future health due to the high risk for cancer; guilt about transmitting a genetic disease to one's children; and concern(More)
Automated and manual direct methods for the determination of urea in blood or serum are described. These methods determine urea by the colored product formed when urea, in relatively weak acid solution, reacts with diacetyl monoxime in the presence of thiosemicarbazide and ferric ion. Results are compared with those obtained by urease conversion of urea to(More)
Familial polyposis is a systemic defect of growth regulation. Extracolonic expressions are common and serious, about equal in risk to carcinoma of the large intestine. Periodic surveillance of the upper gastrointestinal tract is particularly important. More intensive surveillance of the large intestine may lead to better results in patients with polyposis(More)
Ophthalmic examinations were performed on 56 patients with validated familial adenomatous polyposis (FAP) for hyperpigmented defects of the retinal pigment epithelium. Such lesions were seen bilaterally in 29 patients (52%) and unilaterally in 8 patients (14%). Of the 56 patients, 33 had one or more of the extracolonic expressions associated with Gardner(More)
The syndrome of familial medullary thyroid carcinoma (MTC), pheochromocytoma, and parathyroid hyperplasia is inherited as an autosomal dominant trait, and is characterized by development of bilateral and multicentric thyroidal and adrenal medullary tumors. One of the earliest manifestations of adrenal medullary hyperfunction in patients with this syndrome(More)
Eighty consecutive emergency and urgent colectomies for ulcerative colitis were performed. One-stage total proctocolectomy was performed in 37 patients, with a 9.1% mortality; ileostomy with subtotal colectomy was performed in 43, with a 7.0% mortality. The overall mortality was 7.5%. Postoperative morbidity after total proctocolectomy (mean postoperative(More)
OBJECTIVE To develop generic criteria for the global assessment of clinical procedural competence and to quantify the extent to which existing checklists allow for holistic assessment of procedural competencies. METHODS We carried out a systematic review and qualitative analysis of published clinical procedural skills assessment checklists and enumerated(More)
10 patients with serious infections caused by Staphylococcus epidermidis (8 cases of endocarditis in non-prosthetic valves, 1 was complicated by osteomyelitis, 1 case of osteomyelitis, and 1 case of septicemia) are described. Clinical and microbiologic features were evaluated including antibiotic sensitivity and synergy studies, phage typing and biotyping.(More)