Global variation in postoperative mortality and complications after cancer surgery: a multicentre, prospective cohort study in 82 countries.

Knight S. R., Shaw C. A., Pius R., Drake T. M., Norman L., Ademuyiwa A. O., ...Daha Fazla

Lancet (London, England), cilt.397, sa.10272, ss.387-397, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 397 Sayı: 10272
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/s0140-6736(21)00001-5
  • Dergi Adı: Lancet (London, England)
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, EMBASE, Food Science & Technology Abstracts, MEDLINE, Psycinfo, Veterinary Science Database
  • Sayfa Sayıları: ss.387-397
  • Hacettepe Üniversitesi Adresli: Evet

Özet

We have measured the trapping lifetime of magnetically trapped atoms in a cryogenic atom-chip experiment. An ultracold atomic cloud is kept at a fixed distance from a thin gold layer deposited on top of a superconducting trapping wire. The lifetime is studied as a function of the distances to the surface and to the wire. Different regimes are observed, where loss rate is determined either by the technical current noise in the wire or the Johnson-Nyquist noise in the metallic gold layer, in good agreement with theoretical predictions. Far from the surface, we observe exceptionally long trapping times for an atom-chip, in the 10-minutes range.