Electron microscopic study of 1 1 spontaneous cat mammary tumors revealed the presence of virus-like particles in 5 of the tumors examined. In three tumors, spherical particles with two concentric shells surrounding an electron-lucent center were found budding from, or free within, the cisternae of the endoplasmic reticulum. In one tumor, spherical particles with four concentric shells surround...

We demonstrate and discuss acoustic vibrations in spherical shell particles. The particles consist of 38-nm-thick gold shells, sandwiched between an inner silica core of 456 nm in diameter and an outer silica shell of 10 nm in thickness. Employing standard and asynchronous optical sampling (ASOPS) ultrafast pump-probe experiments, we excite acoustic vibrations of the shells and detect the oscil...

A Correction to this paper has been published: 10.1007/s11804-021-00195-1

We present an approach for producing articulated motion for human from a sequence of 3D points forming the volume of a human. In our approach, we use an existing voxel carving technique for collecting point volumes consisting of a single individual. We propose a volume-to-posture procedure based on the estimation of a skeleton curve. A skeleton curve is a underlying “wire” structure for the vol...

Electron microscopic study of 1 1 spontaneous cat mammary tumors revealed the presence of virus-like particles in 5 of the tumors examined. In three tumors, spherical particles with two concentric shells surrounding an electron-lucent center were found budding from, or free within, the cisternae of the endoplasmic reticulum. In one tumor, spherical particles with four concentric shells surround...