Repeat examination of the urine sediment revealed casts containing calcium oxalate crystals. A deeper dietary history revealed ... Congo red stain negative for amyloid. Electron microscopy negative ...

and blepharospasm as large numbers of calcium oxalate crystals penetrate the cornea. [22] Tulips and "Tulip Fingers". The sap of the tulip (family Liliaceae) contains the well-characterized ...

Nonlinear optics is the study of how intense light interacts with matter. The optical response of a material usually scales linearly with the amplitude of the electric field. At high powers ...

The huge X-ray concentration produces a micro-scale image of the tiny fused crystals that make up most metals, ceramics and rocks—known as polycrystalline materials. Results help researchers ...