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  • 1
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    Mid-Pleistocene climate transition drives net mass loss from rapidly uplifting St. Elias Mountains, Alaska (2015)
    In:  EPIC3Proceedings of the National Academy of Sciences, 112(49), pp. 15042-15047, ISSN: 0027-8424
    Details
    Publication Date: 2015-12-13
    Description: Erosion, sediment production, and routing on a tectonically active continental margin reflect both tectonic and climatic processes; partitioning the relative importance of these processes remains controversial. Gulf of Alaska contains a preserved sedimentary record of the Yakutat Terrane collision with North America. Because tectonic convergence in the coastal St. Elias orogen has been roughly constant for 6 My, variations in its eroded sediments preserved in the offshore Surveyor Fan constrain a budget of tectonic material influx, erosion, and sediment output. Seismically imaged sediment volumes calibrated with chronologies derived from Integrated Ocean Drilling Program boreholes show that erosion accelerated in response to Northern Hemisphere glacial intensification (∼2.7 Ma) and that the 900-km-long Surveyor Channel inception appears to correlate with this event. However, tectonic influx exceeded integrated sediment efflux over the interval 2.8–1.2 Ma. Volumetric erosion accelerated following the onset of quasi-periodic (∼100-ky) glacial cycles in the mid-Pleistocene climate transition (1.2–0.7 Ma). Since then, erosion and transport of material out of the orogen has outpaced tectonic influx by 50–80%. Such a rapid net mass loss explains apparent increases in exhumation rates inferred onshore from exposure dates and mapped out-of-sequence fault patterns. The 1.2-My mass budget imbalance must relax back toward equilibrium in balance with tectonic influx over the timescale of orogenic wedge response (millions of years). The St. Elias Range provides a key example of how active orogenic systems respond to transient mass fluxes, and of the possible influence of climate-driven erosive processes that diverge from equilibrium on the million-year scale.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 2
    Electronic Resource
    Electronic Resource
    80 W cw TEM00 1064 nm beam generation by use of a laser-diode-side-pumped Nd:YAG rod laser (1997)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 70 (1997), S. 2650-2651 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have demonstrated stable and efficient 80 W cw TEM00 operation (M2=1.1) of a diode-side-pumped Nd:YAG rod laser. The laser has a simple and scalable configuration consisting of a diffusive pumping reflector and a polarization-dependent bifocusing compensation. © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.118985
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    206 W continuous-wave TEM00 mode 1064 nm beam generation by a laser-diode-pumped Nd:YAG rod laser amplifier (2001)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 79 (2001), S. 2696-2697 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We demonstrate a 206 W 1064 nm beam generation at a beam quality of M2=1.34 with a Nd:YAG laser amplifier system. We also report on an efficient 150 W TEM00 mode diode-pumped Nd:YAG rod laser. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1409332
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  • 4
    Electronic Resource
    Electronic Resource
    Successful resection of an aortic arch aneurysm using a temporary trifurcation bypass graft (1981)
    Springer
    Surgery today 11 (1981), S. 95-99 
    Details
    ISSN: 1436-2813
    Keywords: aortic arch aneurysm ; temporary bypass system ; trifurcation graft ; shunt into the abdominal aorta
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Resection of a syphilitic aortic arch aneurysm in a 62-yearold woman was accomplished using a trifurcation temporary bypass system. The bifurcation graft was sutured end-to-side to the ascending thoracic aorta, to the brachiocephalic trunk and to the left common carotid artery, respectively. The attached third limb end was anastomosed end-to-side to the infrarenal abdominal aorta. This technique enabled a larger shunt into the abdominal aorta. Occlusion of the iliac arteries proved to be effective in coping with hypotension while attending to the bypass and the volume replacement. The post-operative recovery was uneventful and the patient has remained well after 43 months.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02468876
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  • 5
    Electronic Resource
    Electronic Resource
    Surgical treatment of juxtarenal aortic occlusion (1978)
    Springer
    Surgery today 8 (1978), S. 93-101 
    Details
    ISSN: 1436-2813
    Keywords: juxtarenal aortic occlusion ; thromboendarterectomy (TEA) ; suprarenal aortic clamping ; ischemic insult to the kidney ; renal embolization ; bypass grafting ; distal run-off
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract From 1974 to 1976, four patients with juxtarenal aortic occlusion were operated upon with no surgical mortality. Thromboendarterectomy (TEA) of the aorta with renal revascularization was performed in one patient, and TEA with grafting in three. Intraoperative renal protection was particularly important, since suprarenal aortic clamping was often required in these cases. Possible renal embolism developed in one patient postoperatively. In order to prevent renal embolism and to minimize ischemic insult to the kidney, the value of the following procedures was stressed; (a) irrigation of aortic lumen with saline after TEA under suprarenal aortic clamping with renal arteries kept occluded, and (b) re-application of aortic clamp below the renal arteries after irrigation. Since the most distal level of occlusive process was the common femoral artery in our series, the patient with this desease entity should be treated more actively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02469364
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  • 6
    Electronic Resource
    Electronic Resource
    Bilateral popliteal artery entrapment syndrome —Report of a case— (1978)
    Springer
    Surgery today 8 (1978), S. 213-221 
    Details
    ISSN: 1436-2813
    Keywords: popliteal artery entrapment ; medial head of the gastrocnemius muscle ; thromboendarterectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 15-year old female presented with bilateral popliteal artery entrapment syndrome. The left popliteal artery was completely occluded and thromboendarterectomy was performed. Angiography on passive dorsiflexion revealed compression of the right popliteal artery, although it was free of symptoms and of normal caliber. End-to-end anastomosis in the normal anatomical position without division of the medial head of the gastrocnemius muscle was performed on both sides.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02469446
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    Paper (German National Licenses)
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