Beitrage zur Morphologie des Musculus arrector pili.

Glycogenosome accumulation in the arrector pili muscle in Pompe disease

BACKGROUND Glycogenosis type II or Pompe disease is an autosomal-recessive lysosomal storage disease due to mutations in the gene encoding acid alpha-glucosidase (GAA), an enzyme required for lysosomal glycogen degradation. The disease predominantly affects the skeletal and respiratory muscles but there is growing evidence of the involvement of smooth muscle cells in blood vessel walls, suggest...

Hamburger Beitrage zur Angewandten Mathematik Digital Lines and Digital Convexity

Euclidean geometry on a computer is concerned with the translation of geometric concepts into a discrete world in order to cope with the requirements of representation of abstract geometry on a computer. The basic constructs of digital geometry are digital lines, digital line segments and digitally convex sets. The aim of this paper is to review some approaches for such digital objects. It is s...

Hamburger Beitrage zur Angewandten Mathematik Polygonal Representations of Digital Sets

In the context of discrete curve evolution the following problem is of relevance: Decompose the boundary of a plane digital object into convex and concave parts. Such a decomposition is very useful for describing the form of an object e.g. for shape databases. Although the problem is relatively trivial in ordinary plane geometry, in digital geometry its statement becomes a very diÆcult task due...

Morphologie et disposition des stigmates respiratoires chez les larves hexapodes des ixodidae

Zur Polymorphie des Na2S203

Deutsehe Automobilgesellschaft, Forschungslaboratorium Esslingen, D -7300 Esslingen Z . Naturforsch. 34b , 957-968 (1979); eingegangen a m 31. Januar 1979 Sod ium Thiosulphate, Polymorphism, Solid Electrolyte Na2S2C>3 crystallizes in 4 modifications. The familiar monocl inic a f orm stable at ambient temperature transforms into the trigonal /3-form at 330 °C which at 388 °C converts to b c c y ...