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Search: WFRF:(Heinemeyer S)

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1.
  • Moore, Jason W., 1971- (author)
  • Environmental crises and the metabolic rift in world-historical perspective
  • 2000
  • In: Organization & environment. - 1086-0266 .- 1552-7417. ; 13:2, s. 123-157
  • Journal article (peer-reviewed)abstract
    • This article proposes a new theoretical framework to study the dialectic of capital and nature over the longue durée of world capitalism. The author proposes that today’s global ecological crisis has its roots in the transition to capitalism during the long sixteenth century. The emergence of capitalism marked not only a decisive shift in the arenas of politics, economy, and society, but a fundamental reorganization of world ecology, characterized by a “metabolic rift,” a progressively deepening rupture in the nutrient cycling between the country and the city. Building upon the historical political economy of Marx, Foster, Arrighi, and Wallerstein, the author proposes a new research agenda organized around the concept of systemic cycles of agro-ecological transformation. This agenda aims at discerning the ways in which capitalism’s relationship to nature developed discontinuously over time as recurrent ecological crises have formed a decisive moment of world capitalist crisis, forcing successive waves of restructuring over long historical time.
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3.
  • Moore, Jason W., 1971- (author)
  • Introduction : The World-Historical Imagination
  • 2011
  • In: Journal of World-Systems Research. - Riverside, Calif. : Institute for Research on World-Systems. - 1076-156X. ; 17:1, s. 1-3
  • Journal article (other academic/artistic)abstract
    • This article is the editor's introduction to the special issue of the Journal of World-Systems Research, entitled The World-Historical Imagination: Giovanni Arrighi's The Long Twentieth Century in Prospect and Retrospect.
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5.
  • Skagius, Elisabet, et al. (author)
  • Percutaneous Closure of Large Femoral Artery Access with Prostar XL in Thoracic Endovascular Aortic Repair
  • 2013
  • In: European Journal of Vascular and Endovascular Surgery. - : Elsevier BV. - 1078-5884 .- 1532-2165. ; 46:5, s. 558-563
  • Journal article (peer-reviewed)abstract
    • OBJECTIVES:To investigate the technical success rate of Prostar XL for closure of large (≥20F) femoral vascular access sites in thoracic endovascular aortic repair (TEVAR) procedures.METHODS:This was a single-center consecutive case series. All TEVAR procedures at Uppsala University Hospital 2006-2010 were registered prospectively. Reoperations and cases with open closure technique were excluded. Primary (early) technical failure was defined as closure failure requiring immediate (on-table) open surgical repair; late access-related complication occurred thereafter. The medical records, pre- and postoperative computed tomography images were reviewed retrospectively.RESULTS:A total of 164 TEVAR procedures were identified, of which 118 (71%) had a median 22F (range 20-26F) access site sealed with tandem Prostar XL. The indications for TEVAR were dissection (47%), aneurysm (42%), trauma (8%), and miscellaneous (3%). Median follow-up time was 10 months (range 1-62). Primary technical failure occurred in 10 of 118 (8%). These cases were converted to cut-downs and surgical repair (n = 7), femoral fascia suturing (n = 2), and external compression with the Femo-Stop device (n = 1). Hypertension was associated with primary failure (p = .005), and a trend was observed for high age (p = .078) and increased groin subcutaneous fat layer (p = .077). Late access-related complications included pseudo-aneurysms (n = 12), small hematomas (n = 7), superficial groin infections (n = 2), and deep venous thrombosis (n = 1). None of the late complications required surgical treatment.CONCLUSIONS:The access closure technique with tandem Prostar XL for large access sites during TEVAR is safe, in experienced hands. Few technical failures and few late complications occur, and they are usually benign.
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6.
  • Bechta, Sevostian, et al. (author)
  • Phase transformation in the binary section of the UO2-FeO-Fe system
  • 2007
  • In: Radiochemistry (New York, N.Y.). - 1066-3622 .- 1608-3288. ; 49:1, s. 20-24
  • Journal article (peer-reviewed)abstract
    • Phase transformations in the oxide binary section of the UO2-FeO-Fe ternary system were studied. The melting onset point of the UO2-FeO heterogeneous system (1335±5°C) was determined and the fusion curve of this system was constructed. The limiting solubility of FeO in the UO2 solid solution was measured. The changes in crystal parameters in formation of the solid solution were determined. Uranium dioxide was found to be insoluble in the wüstite phase (FeO).
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8.
  • Heindel, K, et al. (author)
  • Post-glacial microbialate formation in coral reefs of the Pacific, Atlantic and Indian Oceans
  • 2012
  • In: Chemical Geology. - : Elsevier BV. - 0009-2541 .- 1872-6836. ; 304-305, s. 117-130
  • Journal article (peer-reviewed)abstract
    • The occurrence of microbialites in post-glacial coral reefs has been interpreted to reflect an ecosystem response to environmental change. The greater thickness of microbialites in reefs with a volcanic hinterland compared to thinner microbial crusts in reefs with a non-volcanic hinterland led to the suggestion that fertilization of the reefal environment by chemical weathering of volcanic rocks stimulated primary productivity and microbialite formation. Using a molecular and isotopic approach on reef-microbialites from Tahiti (Pacific Ocean), it was recently shown that sulfate-reducing bacteria favored the formation of microbial carbonates. To test if similar mechanisms induced microbialite formation in other reefs as well, the Tahitian microbialites are compared with similar microbialites from coral reefs off Vanuatu (Pacific Ocean), Belize (Caribbean Sea, Atlantic Ocean), and the Maldives (Indian Ocean) in this study. The selected study sites cover a wide range of geological settings, reflecting variable input and composition of detritus. The new lipid biomarker data and stable sulfur isotope results confirm that sulfate-reducing bacteria played an intrinsic role in the precipitation of microbial carbonate at all study sites, irrespective of the geological setting. Abundant biomarkers indicative of sulfate reducers include a variety of terminally-branched and mid chain-branched fatty acids as well as mono-O-alkyl glycerol ethers. Isotope evidence for bacterial sulfate reduction is represented by low δ 34S values of pyrite (-43 to -42‰) enclosed in the microbialites and, compared to seawater sulfate, slightly elevated δ 34S and δ 18O values of carbonate-associated sulfate (21.9 to 22.2‰ and 11.3 to 12.4‰, respectively). Microbialite formation took place in anoxic micro-environments, which presumably developed through the fertilization of the reef environment and the resultant accumulation of organic matter including bacterial extracellular polymeric substances (EPS), coral mucus, and marine snow in cavities within the coral framework. ToF-SIMS analysis reveals that the dark layers of laminated microbialites are enriched in carbohydrates, which are common constituents of EPS and coral mucus. These results support the hypothesis that bacterial degradation of EPS and coral mucus within microbial mats favored carbonate precipitation. Because reefal microbialites formed by similar processes in very different geological settings, this comparative study suggests that a volcanic hinterland is not required for microbialite growth. Yet, detrital input derived from the weathering of volcanic rocks appears to be a natural fertilizer, being conductive for the growth of microbial mats, which fosters the development of particularly abundant and thick microbial crusts.
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  • Result 1-8 of 8

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