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Linking Fish Habitat Modelling and Sediment Transport in Running Waters

四川大学学报（工程科学版） 2005年第S1期37卷 52-56页

作者： andreas eisner Silke WIEPRECHT Matthias SCHNEIDER IWS Universitt StuttgartInst.of Hydraulic Eng.Chair of Hydraulic Eng.and Water Recources ManagementPfaffenwaldring 61D-70569 StuttgartGermany Sje-Schneider and Jorde Ecological Eng.GmbH Viereichenweg 12D-70569 StuttgartGermany

The assessment of ecological status for running waters is one of the major issues within an integrated river basin management and plays a key role with respect to the implementation of the European Water Frame- work Directive (WFD).One of the tools supporting the development of sustainable river management is physi- cal habitat modeling,e.g.,for fish,because fish population are one of the most important indicators for the e- colngical integrity of *** physical habitat models hydromorphological ...

关键词： morphodynamics sediment transport fish habitat modeling fuzzy logic CASiMiR

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Ultrasound-assessed non-culprit and culprit coronary vessels differ by age and gender

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World Journal of Cardiology 2013年第3期5卷 42-48页

作者： andreas W Schoenenberger Nadja Urbanek Stefan Toggweiler andreas E Stuck Thérèse J Resink Paul Erne Division of Geriatrics Department of General Internal Medicine Inselspital Bern University Hospital and University of Bern Department of Cardiology Luzerner Kantonsspital Department of Biomedicine Laboratoryfor Signal Transduction Basel University Hospital

AIM: To investigate age-and gender-related differences in non-culprit versus culprit coronary vessels assessed with virtual histology intravascular ultrasound (VH-IVUS). METHODS: In 390 patients referred for coronary angiography to a single center (Luzerner Kantonsspital, Switzerland) between May 2007 and January 2011, 691 proximal vessel segments in left anterior descending, circumflex and/or right coronary arteries were imaged by VH-IVUS. Plaque burden and plaque composition(fibrous, fibro-fatty, necrotic core and dense calcium volumes) were analyzed in 3 age tertiles, according to gender and separated for vessels containing non-culprit or culprit lesions. To classify as vessel containing a culprit lesion, the patient had to present with an acute coronary syndrome, and the VH-IVUS had to be performed in a vessel segment containing the culprit lesion according to conventional coronary angiography. RESULTS: In non-culprit vessels the plaque burden increased significantly with aging (in men from 37% ± 12% in the lowest to 46% ± 10% in the highest age tertile, P < 0.001; in women from 30% ± 9% to 40% ± 11%, P < 0.001); men had higher plaque burden than women at any age (P < 0.001 for each of the 3 age tertiles). In culprit vessels of the lowest age tertile, plaque burden was significantly higher than that in non- culprit vessels (in men 48% ± 6%, P < 0.001 as compared to non-culprit vessels; in women 44% ± 18%, P = 0.004 as compared to non-culprit vessels). Plaque burden of culprit vessels did not significantly change during aging (plaque burden in men of the highest age tertile 51% ± 9%, P = 0.523 as compared to lowest age tertile; in women of the highest age tertile 49% ± 8%, P = 0.449 as compared to lowest age tertile). In men, plaque morphology of culprit vessels became increasingly rupture-prone during aging (increasing percentages of necrotic core and dense calcium), whereas plaque morphology in non-culprit vessels was less rupture-prone and remained constant du

关键词： Coronary vessels Anatomy and histology Coronary artery Ultrasonography Coronary artery disease Atherosclerosis Etiology Age factors

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