SUCCESSFUL FIBRIN GLUE REPAIR OF IATROGENIC BRONCHIAL RUPTURE


KARLIKAYA C., UCAN E. S., OTO O., AKKOCLU A., CIMRIN A., AKPINAR O.

RESPIRATORY MEDICINE, vol.87, no.5, pp.397-398, 1993 (SCI-Expanded) identifier identifier identifier identifier

  • Publication Type: Article / Letter
  • Volume: 87 Issue: 5
  • Publication Date: 1993
  • Doi Number: 10.1016/0954-6111(93)90056-6
  • Journal Name: RESPIRATORY MEDICINE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.397-398
  • Dokuz Eylül University Affiliated: Yes

Abstract

{}From the ordinary tensile string we derive a geometric action for the tensionless ($T=0$) string and discuss its symmetries and field equations. The Weyl symmetry of the usual string is shown to be replaced by a global space-time conformal symmetry in the $T\to 0$ limit. We present the explicit expressions for the generators of this group in the light-cone gauge. Using these, we quantize the theory in an operator form and require the conformal symmetry to remain a symmetry of the quantum theory. Modulo details concerning zero-modes that are discussed in the paper, this leads to the stringent restriction that the physical states should be singlets under space-time diffeomorphisms, hinting at a topological theory. We present the details of the calculation that leads to this conclusion.