purpose: to report a case of butterfly-shaped macular dystrophy. patient and findings: a 34-year-old woman presented with metamorphopsia in both eyes from 2 years ago. visual acuity was 9/10 in right eye and 10/10 in left eye. there was no pathologic finding on slit lamp biomicroscopy and funduscopy other than mild macular retinal pigment epithelium mottling. visual fields and electroretinogram...

We report here the donut-shaped nanostructure formation from the self-assembly of a designer lipid-like amphiphilic cone-shaped peptide. The critical aggregation concentration was measured using dynamic light scattering in water and phosphate-buffered saline. The dynamic self-assembly of the peptide was also studied using atomic force microscopy. We have studied numerous peptides over 17 years,...

The ground state potential energy surface of the GeC2 molecule has been investigated at highly correlated coupled cluster levels of theory. Large basis sets including diffuse functions and functions to describe core correlation effects were employed in order to predict the true equilibrium geometry for GeC2. Like the much-studied valence isoelectronic SiC2, the linear ( (), L-shaped (A8), and T...

Drusen, the white yellowish deposits that can be seen in funduscopy, are a hallmark of age-related macular degeneration. Histologically, drusen are believed to be dome-shaped or more confluent lipid accumulations between the retinal pigment epithelium and the choriocapillaries. Recent advances in mouse funduscopy have revealed the presence of drusen-like structures in chemokine knockout animals...

Herein, we report a facile synthesis, characterization and dye sensitized solar cell (DSSC) application of flower-shaped ZnO nanostructures. The flower-shaped ZnO nanostructures were synthesized by low-temperature hydrothermal process and characterized in detail by several techniques. The detailed morphological studies confirmed that the flower-shaped structures are formed by the accumulation o...

Water transport through aquaporin water channels occurs extensively in cell membranes. Hourglass-shaped (biconical) pores resemble the geometry of these aquaporin channels and therefore attract much research attention. We assumed that hourglass-shaped nanopores are capable of high water permeation like biological aquaporins. In order to prove the assumption, we investigated nanoscale water tran...

We consider a general solution of the electromagnetic wave scattering problem for arbitrarily shaped homogeneous particles, whose surface can be expressed by a function of angular coordinates, using a Laplace series expansion. This can include regularly shaped particles (e.g., ellipsoids and cubes) as well as irregularly shaped particles like Gaussian spheres. For calculations of scattering pro...

Purpose Existing shape-based fuzzy clustering algorithms are all designed to explicitly segment regular geometricallyshaped objects in an image, with the consequence that this restricts their capability to separate arbitrarily-shaped objects. Design/Methodology/Approach – With the aim of separating arbitrary shaped objects in an image, this paper presents a new detection and separation of gener...

bioinert ceramics, like alumina and zirconia are used mainly for replacements of bones, hip joints and for dental implants. partially stabilized zirconia ceramics (psz or tzp with 3 mol.% or 5 wt.% y2o3), appear as perspective bioinert ceramics because of their high strength and corrosion resistance. in order to fabricate complex shapes, it is essential to use a near net shape processing like g...