Predicting retro-Brook reaction success or failure with simple MM2-Hückel models enables streamlined strategies towards previously inaccessible functionalized aryne and bisaryne precursors.

—Theoretical models and empirical evidence suggest that the invasion of nonnative species in freshwaters is facilitated through the interaction of three factors: habitat quality, biotic resistance, and connectivity. We measured variables that represented each factor to determine which were associated with the occurrence of nonnative brook trout Salvelinus fontinalis in Panther Creek, a tributar...

—We provide new insights on the ability of naturalized brook trout Salvelinus fontinalis to ascend steep, headwater streams in the western USA. We tested hypotheses that upstream movements by brook trout are limited or absent in reaches of steep streams and are more prevalent and longer in gradually sloping streams. We compared brook trout movements in headwater streams in Idaho at sites with v...

Geminal mercapto trialkyl- and trialkoxy-silanes undergo an efficient radical chain rearrangement, whereby the silyl group migrates from carbon to sulfur; the starting materials are readily obtained by exploiting the peroxide initiated radical addition of dithiocarbonates (xanthates) to trialkyl- or trialkoxy-vinylsilanes.

a total of 23 species and 19 genera were identified. the genus coecobrya yosii 1956 (entomobryidae) is recorded for the first time from iran. family paronellidae and three species cyphoderus albinus nicolet 1842 (paronellidae), sinella curviseta brook 1882 and entomobrya lindbergi stach 1960 (entomobryidae) are reported for the first time from mazandaran province. also an identification key for...

Current distributions of native brook trout (Salvelinus fonfinalis) in the southern Appalachians are restricted to upper elevations by multiple factors, including habitat requirements, introduced rainbow (Oncorhynchus mykiss) and brown (Salmo fnrtia) trout, and other human activities. Present-day distribution of brook trout habitat is already fragmented. Increased temperatures predicted by vari...

—Invasions of brook trout Salvelinus fontinalis are believed to threaten the aquatic fauna native to the cold streams and lakes of western North America. Although invasion is widespread, documentation of historic versus recent invasion rates throughout drainages is lacking. We compared brook trout distributions in 1996 to those as early as 1971 for 17 streams in the upper South Fork Salmon Rive...

A. Catherine Markham,a,b Susan C. Alberts,c,d and Jeanne Altmanna,d aDepartment of Ecology and Evolutionary Biology, Princeton University, Guyot Hall, Washington Road, Princeton, NJ 08544, USA, bDepartment of Anthropology, Stony Brook University, Circle Road, Social and Behavioral Sciences Building, Stony Brook, NY 11794, USA, cDepartment of Biology, Duke University, Box 90338, Durham, NC 27708...

Dmitri E. Kharzeev1,2,* and Ho-Ung Yee3,† 1Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA 2Department of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000, USA 3Department of Physics, University of Illinois, Chicago, Illinois 60607, USA and RIKEN-BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000,...