ORCID Profile
0000-0002-9283-9529
Current Organisations
Tampere University Hospital
,
Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences
,
Karolinska University Hospital
,
Karolinska Institutet
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Publisher: Copernicus GmbH
Date: 12-06-2019
Abstract: Abstract. The 2017 Surtsey Underwater volcanic System for Thermophiles, Alteration processes and INnovative concretes (SUSTAIN) drilling project at Surtsey volcano, sponsored in part by the International Continental Scientific Drilling Program (ICDP), provides precise observations of the hydrothermal, geochemical, geomagnetic, and microbiological changes that have occurred in basaltic tephra and minor intrusions since explosive and effusive eruptions produced the oceanic island in 1963–1967. Two vertically cored boreholes, to 152 and 192 m below the surface, were drilled using filtered, UV-sterilized seawater circulating fluid to minimize microbial contamination. These cores parallel a 181 m core drilled in 1979. Introductory investigations indicate changes in material properties and whole-rock compositions over the past 38 years. A Surtsey subsurface observatory installed to 181 m in one vertical borehole holds incubation experiments that monitor in situ mineralogical and microbial alteration processes at 25–124 ∘C. A third cored borehole, inclined 55∘ in a 264∘ azimuthal direction to 354 m measured depth, provides further insights into eruption processes, including the presence of a diatreme that extends at least 100 m into the seafloor beneath the Surtur crater. The SUSTAIN project provides the first time-lapse drilling record into a very young oceanic basaltic volcano over a range of temperatures, 25–141 ∘C from 1979 to 2017, and subaerial and submarine hydrothermal fluid compositions. Rigorous procedures undertaken during the drilling operation protected the sensitive environment of the Surtsey Natural Preserve.
Publisher: Wiley
Date: 19-07-2007
DOI: 10.1002/IJC.22948
Abstract: Colorectal cancer is the third most common cancer worldwide and the second most common cancer in Europe. Cumulative relative survival curves for both cancer of the colon and cancer of the rectum generally plateau after ∼6–8 years. When this occurs, “population” or “statistical” cure is reached. We analyzed data from the Finnish Cancer Registry over a 50‐year period using methods that simultaneously estimate the proportion of patients cured of disease (the cure fraction) and the survival time distribution of the “uncured” group. Our primary aim was to investigate temporal trends in the cure fraction and median survival of the uncured by age group for both cancer of the colon and rectum. For both cancers, the cure fraction has increased dramatically over time for all age groups. However, the difference in the cure fraction between age groups has reduced over time, particularly for cancer of the colon. Median survival in the uncured has also increased over time in all age groups but there still remains an inverse relationship between age and median survival, with shorter median survival with increasing age. The reasons for these impressive increases in patient survival are complex, but are highly likely to be strongly related to many improvements in cancer care over this same time period. © 2007 Wiley‐Liss, Inc.
Publisher: Elsevier BV
Date: 04-2012
Location: Germany
Location: United Kingdom of Great Britain and Northern Ireland
Location: United States of America
No related grants have been discovered for Tobias Björn Weisenberger.