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Commutators As Powers In Free Products Of Groups, Leo Comerford, Charles C. Edmunds, Gerhard Rosenberger
Commutators As Powers In Free Products Of Groups, Leo Comerford, Charles C. Edmunds, Gerhard Rosenberger
Leo Comerford
The ways in which a nontrivial commutator can be a proper power in a free product of groups are identified
Review: Naissance D'Une Cité: Laon Et Le Laonnois Du Ve Au Xe Siècle By Jackie Lusse, Bailey K. Young
Review: Naissance D'Une Cité: Laon Et Le Laonnois Du Ve Au Xe Siècle By Jackie Lusse, Bailey K. Young
Bailey K. Young
No abstract provided.
The Soil Seed Pool Of Huffman Prairie, A Degraded Ohio Prairie, And Its Potential In Restoration, Scott J. Meiners, David L. Gorchov
The Soil Seed Pool Of Huffman Prairie, A Degraded Ohio Prairie, And Its Potential In Restoration, Scott J. Meiners, David L. Gorchov
Scott J. Meiners
The germinable seeds in the soil of a relict Ohio prairie were investigated to determine the composition and density of dicots of potential value in restoration. Soil samples were collected from three areas of the prairie with distinctive species compositions: swale, north upland, and south upland. Seed density and species composition were based on seedling emergence over 90 days. North upland and south upland samples yielded similar total seedling densities (5,902 and 5,109 m·2 ) while that of the swale was greater ( 15,262 m·2 ). Thirteen introduced and 18 native dicot species were present; seven of the latter were …
Flora Of An Unusually Diverse Old Growth Forest In The Southeastern Adirondacks, Gordon C. Tucker, Richard S. Mitchell
Flora Of An Unusually Diverse Old Growth Forest In The Southeastern Adirondacks, Gordon C. Tucker, Richard S. Mitchell
Gordon C. Tucker
A lowland, virgin white pine-hemlock stand and associated old-growth habitats were studied at Pack Forest Preserve, Warren County, NY. An area of 48.1 acres, interrupted only by nature trails, has white pines up to 58 inches in diameter, and supports 355 native plant species-an unexpectedly high number, considering its location in the climatically severe Adirondack Mountains. This minimally disturbed old-growth forest and its associated wetlands are not only diverse, but essentially weed-free, making them ideal for future ecological research, botanical teaching and monitoring activities.
Relation Between Phonologic Difficulty And The Occurrence Of Disfluencies In The Early Stage Of Stuttering, Rebecca Throneburg, Ehud Yairi, Elaine P. Paden
Relation Between Phonologic Difficulty And The Occurrence Of Disfluencies In The Early Stage Of Stuttering, Rebecca Throneburg, Ehud Yairi, Elaine P. Paden
Rebecca Throneburg
People who stutter, especially children, have often been reported to exhibit a wide range of concomitant communication problems including articulation and phonologic deficiencies. This study investigated the relation between the phonologic difficulty of words and the point at which stuttering-like disfluencies occurred in the speech of preschool children identified as having a stuttering problem (n = 24). The children were divided into subgroups according to stuttering severity and phonologic ability. A spontaneous speech sample of approximately 1,000 words was tape-recorded from each child, and perceived disfluencies were identified. The phonologic difficulty of each word on which there was a stuttering-like …