AIM To use a colour matching technique to test the hypothesis that the foveal tritanopic zone is increased in size in diabetes mellitus. METHOD A Wright tristimulus colorimeter was adapted for small field colour matching and colour matches were performed on bipartite fields in the range 12' to 60' of arc. The reference stimulus was 490 nm desaturated with 650 nm and the matching stimulus cons...

Interferons (IFN) elicit antiviral and antineoplastic activities by binding to specific receptors on the cell surface. In evaluating the role of IFN as therapeutic agents in AIDS, we investigated the expression of IFNa and 'y receptors on peripheral blood mononuclear cells (PBM) from patients with AIDS, ARC, and heterosexual control subjects using radioiodinated IFNa2 and IFN-y. The binding cha...

BACKGROUND Distal humeral fractures have traditionally been managed with surgical approaches that disrupt the extensor mechanism. We hypothesized that an extensor mechanism-on approach for operative fixation of distal humeral fractures with parallel or orthogonal plate constructs would allow excellent healing, a motion arc of the elbow exceeding 100°, and maintenance of extensor mechanism stren...

Aim: To use a colour matching technique to test the hypothesis that the foveal tritanopic zone is increased in size in diabetes mellitus. Method: A Wright tristimulus colorimeter was adapted for small field colour matching and colour matches were performed on bipartite fields in the range 12’ to 60’ of arc. The reference stimulus was 490 nm desaturated with 650 nm and the matching stimulus cons...

Several representations have been created to store topological information in normal spatial databases. However, not that much work has been done to store such relationships for spatiotemporal data. This paper extends the representation of moving objects from [7] so that it can also store and enforce some of the topological relationships between the objects. This is done in a fashion similar to...

BACKGROUND Our current understanding of tibiofemoral kinematics in the anterior cruciate ligament (ACL)-deficient knee is very limited. Using vertical open-access MRI, it is possible to accurately analyze tibiofemoral motion in patients with isolated rupture of the ACL. STUDY Prospective cohort study. PURPOSE To assess if ACL rupture alters normal knee weightbearing kinematics. METHODS Ti...

The total baroreflex arc [the open-loop system relating carotid sinus pressure (CSP) to arterial pressure (AP)] is known to exhibit nonlinear behaviors. However, few studies have quantitatively characterized its nonlinear dynamics. The aim of this study was to develop a nonlinear model of the sympathetically mediated total arc without assuming any model form. Normal rats were studied under anes...

The reversal of obesity is a difficult feat at best and is a growing problem as the obesity epidemic increases worldwide. Considerable focus has been made on the arcuate nucleus (Arc) in the control of body and lipid mass and food intake. To test the role of the Arc in body fat mobilization, we compared the effects of food deprivation on white adipose tissue (WAT) mass in adult Siberian hamster...