Vegetation responses to pathogen-induced tree loss: Swedish elm and ash forests revisited after 32 years

Vegetation Patterns 25 Years after the Eruption

We conducted a vegetation survey of newly formed sites on Mount St. Helens in 2004 and compared it to a 1992 survey. We asked whether vegetative heterogeneity had become reduced and sought evidence from floristic classifications, links between species and environment, and changes in community structure. From species composition in 271 250-m plots we determined diversity and dominance. Six loose...

Caspian Coastal Forests: Arbuscular Mycorrhizal Fungi and Understory Vegetation

Moist and temperate Caspian forests are associated with a diversity of soil types and topography.  Although, natural history and ecological attributes of the Caspian vegetation is well-documented, little is known about mycorrhizae of the Caspian (Hyrcanian) flora. Samples of herbaceous plant species were collected from 4 pre-determined altitudes (-13 upto about 1500m above sea level, appro...

Holiday Heart Syndrome Revisited after 34 Years

The cardiovascular effects of alcohol are well known. However, most research has focused on the beneficial effects (the "French paradox") of moderate consumption or the harmful consequences, such as dilated cardiomyopathy, associated with heavy consumption over an extended period. An association between the ingestion of acute alcohol and onset of cardiac arrhythmias was first reported in the ea...

Indanthrone dye revisited after sixty years.

Indanthrone, an old, insoluble dye can be converted into a solution processable, self-assembling and electroluminescent organic semiconductor, namely tetraoctyloxydinaptho[2,3-a:2',3'-h]phenazine (P-C8), in a simple one-pot process consisting of the reduction of the carbonyl group by sodium dithionite followed by the substitution with solubility inducing groups under phase transfer catalysis co...

The Emilian Model Revisited: Twenty Years After