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UNLABELLED Laparoscopy for colonic diseases began in 1990 and has established a role in benign disease. Early observations and experiences demonstrated feasibility of laparoscopic surgery for a variety of colonic disease processes, but the applicability to colonic carcinoma was unclear. METHODS In 1990, we began a comparative study of open (OCR) vs.(More)
Higher-order theories of consciousness argue that conscious awareness crucially depends on higher-order mental representations that represent oneself as being in particular mental states. These theories have featured prominently in recent debates on conscious awareness. We provide new leverage on these debates by reviewing the empirical evidence in support(More)
A K+ channel gene has been cloned from Drosophila melanogaster by complementation in Saccharomyces cerevisiae cells defective for K+ uptake. Naturally expressed in the neuromuscular tissues of adult flies, this gene confers K+ transport capacity on yeast cells when heterologously expressed. In Xenopus laevis oocytes, expression yields an ungated(More)
CONTEXT Although beta-blockers improve symptoms and survival in adults with heart failure, little is known about these medications in children and adolescents. OBJECTIVE To prospectively evaluate the effects of carvedilol in children and adolescents with symptomatic systemic ventricular systolic dysfunction. DESIGN, SETTING, AND PARTICIPANTS A(More)
Extensive evidence is available that cardiovascular structure and function, along with other biological properties that span the range of organism size and speciation, scale with body size. Although appreciation of such factors is commonplace in pediatrics, cardiovascular measurements in the adult population, with similarly wide variation in body size, are(More)
BACKGROUND There has been a continued search for alternative diagnostic techniques that do not necessitate endomyocardial biopsy for diagnosing rejection in cardiac transplant recipients. The purpose of this study is to evaluate the role of echocardiography and hemodynamic catheterization data compared with endomyocardial biopsy results, in rejection(More)
AIM The aim of this study was to examine the results of remote superficial femoral artery endarterectomy (RSFAE) in conjunction with distal aSpire stenting in a multinational study. METHODS RSFAE is a minimally invasive procedure performed through a limited groin incision. A total of 210 patients were included in this study. The indications for the(More)
The little previous research comparing student errors across schools indicates that student " bugs " do not transfer – that is, the distribution of students' systematic errors in one school does not significantly match those in other schools. The issue has practical implications as cognitive (or " model-tracing ") tutors rely on the modeling of student(More)