PURPOSE Cutis marmorata is a cutaneous livedoid disorder which can be differentiated from livedo reticularis in both clinical and pathological presentations. Unlike Sneddon syndrome, a detailed immunocoagulation profile has not yet been delineated for cutis marmorata in patients with cerebral ischemia. METHODS To analyze the immunocoagulation profile in cutis marmorata patients associated wit...

PURPOSE To investigate the biomechanics of the anterior human corneal stroma using atomic force microscopy (AFM). METHODS AFM measurements were performed in liquid on the anterior stroma of human corneas, after gently removing the epithelium, using an atomic force microscope in the force spectroscopy mode. Rectangular silicon cantilevers with tip radius of 10 nm and spring elastic constants o...

Please cite this article in press as: Sneddon, A., dx.doi.org/10.1016/j.ssci.2012.05.027 Drilling for oil and gas on offshore installations is a hazardous occupation, and requires personnel to maintain high levels of work situation awareness (WSA). This paper presents a self-report scale developed to measure the WSA of drilling personnel, and examines the influence of the performance shaping fa...

Loss factor measurements were performed on different sandwich panels to determine the effects of different skin and core materials on the acoustical properties of sandwich structures. The study included the following panel/beam designs: glass-epoxy skin with a meta-aramid (m-aramid) core, glass-epoxy skin with a para-aramid core, carbon skin with a m-aramid core, carbon skin with a m-aramid cor...

PURPOSE To determine the ability of a novel palpation device to differentiate between benign and malignant tissues of the kidney and bladder by measuring tissue elasticity. MATERIALS AND METHODS A novel palpation device was developed, mainly composed of a micromotor, a linear position sensor, a force transducer, and a hemisphere tip and cylindrical body probe. Motion calibration as well as pe...

A study is made of the propagation of time-harmonic plane thermoelastic waves of assigned frequency in an infinite rotating medium using Green-Naghdi model (1993) of linear thermoelasticity without energy dissipation. A more general dispersion equation is derived to examine the effect of rotation on the phase velocity of the modified coupled thermal dilatational shear waves. It is observed that...

A physical deduction of the FN = kh(3/2) relation (where FN is normal force, k penetration resistance, and h penetration depth) for conical/pyramidal indentation loading curves has been achieved on the basis of elementary mathematics. The indentation process couples the productions of volume and pressure to the displaced material that often partly plasticizes due to such pressure. As the pressu...

Since the mechanical properties of single cells together with the intercellular adhesive properties determine the macro-mechanical properties of plants, a method for evaluation of the cell elastic properties is needed to help explanation of the behavior of fruits and vegetables in handling and food processing. For this purpose, indentation of tomato mesocarp cells with an atomic force microscop...