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Article
Trans-catheter paravalvular leak closure: a single-centre experience
A significant paravalvular leak (PVL) is estimated in at least 1–3% of patients undergoing surgical aortic and/or mitral valve replacement. Surgical repair of a PVL is associated with a 30-day mortality of app...
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Article
Late Holocene Marsh Expansion in Southern San Francisco Bay, California
Currently, the largest tidal wetlands restoration project on the US Pacific Coast is being planned and implemented in southern San Francisco Bay; however, knowledge of baseline conditions of salt marsh extent ...
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Chapter and Conference Paper
SIMPLE—Sustainable Infrastructure Management Program Learning Environment
Sustainable Infrastructure Management Program Learning Environment (SIMPLE) is a web based asset management knowledge tool set hosted by the Water Environment Research Foundation (WERF). It is an intuitive and...
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Article
Open AccessFirst lacustrine varve chronologies from Mexico: impact of droughts, ENSO and human activity since AD 1840 as recorded in maar sediments from Valle de Santiago
We present varve chronologies for sediments from two maar lakes in the Valle de Santiago region (Central Mexico): Hoya La Alberca (AD 1852–1973) and Hoya Rincón de Parangueo (AD 1839–1943). These are the first...
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Article
Open AccessAbundance and diversity of tidal marsh plants along the salinity gradient of the San Francisco Estuary: implications for global change ecology
From 2003 through 2005, tidal marsh plant species diversity and abundance on historically surveyed vegetation transects along the salinity gradient of the San Francisco Estuary were investigated to establish e...
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Article
Pre-Columbian purslane (Portulaca oleracea L) in the New World
LIKE so many cosmopolitan weeds, purslane (Portulaca oleracea L) has a history characterised by paradox and uncertainty. Most botanists have followed De Candolle1 in assuming that it is native to the Old World an...