SUMMARY. There is controversy as to whether oxynto-cardiac mucosa (OCM), cardiac mucosa (CM) and intestinal metaplasia (IM) found in the gastroesophageal-junction region line the anatomic stomach, esophagus or both. A total of 785 retroflex biopsies taken at the endoscopic gastroesophageal junction in 244 patients were evaluated for the presence of gland ducts and multilayered epithelium which ...

The fluorescence intermittency of multilayered quantum dots QDs is experimentally investigated. The measured blinking statistical probabilities for QDs of different shell structures and at different excitation powers are compared with the diffusion controlled electron transfer model. The results show that the power law statistics for the “on” and “off” events depend strongly on the structure an...

We examine deformation mechanisms and performance of multilayered structures inspired by imbricated scale-tissue systems of elasmoid fish. Exact analytical solutions are derived for these soft composite structures undergoing finite deformation in compressive and bending loading conditions. The layered structure leads to dramatic coupled shear-compressive deformations which afford distinct and a...

♣ The work presented in this paper has been partially supported by FIRB project MAIS: Multichannel Adaptive Information Systems Abstract Agents in the Multilayered Multi Agent Situated System (MMASS) model can perform at-a-distance distance communication by field diffusion over the structure of the environment that hosts the agents. This paper discusses a distributed mechanism to support select...

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PURPOSE. Retinal diseases are often accompanied by changes in the structure of the multilayered extracellular matrix underlying the retina, Bruch’s membrane (BrM). These structural revisions potentially lead to alterations in retinal pigment epithelium (RPE) adhesion, likely via modification of interactions with extracellular matrix (ECM) proteins including laminins in BrM. The purpose of this ...

The characteristics of dielectric backed planar conducting layers of arbitrarily shaped in a rectangular waveguide are calculated by means of coupled integral equation technique (CIET) which accurately takes higher order mode interactions. Equivalent structures for the accurate analysis whole structure are introduced in which magnetic surface currents are identified as the unknowns at the apert...

OBJECTIVES To investigate practicing physicians' preferences, perceived usefulness and understanding of a new multilayered guideline presentation format-compared to a standard format-as well as conceptual understanding of trustworthy guideline concepts. DESIGN Participants attended a standardised lecture in which they were presented with a clinical scenario and randomised to view a guideline ...

In this paper, we present a novel cylindrical deployable structure and variations of its design with the following characteristics: 1. Flat-foldable: The shape flattens into a compact 2D configuration. 2. Rigid-foldable: Each element does not deform throughout the transformation. 3. One-DOF: The mechanism has exactly one degree of freedom. 4. Thick: Facets can be substituted with thick or multi...

Protein secondary structures in human hair have been studied with ultrabroadband multiplex coherent anti-Stokes Raman scattering (CARS) microspectroscopy. The CARS peak-shift mapping method has been developed and applied to hair samples with and without treatments by chemical reduction and mechanical extension. It clearly visualizes the treatment induced changes in protein secondary structures ...